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428
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1 /* Display generation from window structure and buffer text.
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2 Copyright (C) 1994, 1995, 1996 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995 Free Software Foundation, Inc.
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3025
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4 Copyright (C) 1995, 1996, 2000, 2001, 2002, 2003, 2005 Ben Wing.
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428
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5 Copyright (C) 1995 Sun Microsystems, Inc.
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6 Copyright (C) 1996 Chuck Thompson.
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7
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8 This file is part of XEmacs.
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9
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10 XEmacs is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published by the
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12 Free Software Foundation; either version 2, or (at your option) any
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13 later version.
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14
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15 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with XEmacs; see the file COPYING. If not, write to
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22 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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23 Boston, MA 02111-1307, USA. */
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24
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25 /* Synched up with: Not in FSF. */
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26
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27 /* Author: Chuck Thompson */
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28
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29 /* Fixed up by Ben Wing for Mule */
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30
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31 /* This file has been Mule-ized. */
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32
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33 /*****************************************************************************
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34 The Golden Rules of Redisplay
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35
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853
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36 First: It Is Better To Be Correct Than Fast
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37 Second: Thou Shalt Use Due Caution When Running Elisp From Within Redisplay
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38 Third: It Is Better To Be Fast Than Not To Be
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428
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39 ****************************************************************************/
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40
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1318
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41 /* Note: The second rule used to prohibit running Elisp from within
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42 redisplay, but that's not correct any more -- use
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43 call*_trapping_problems() or call_with_suspended_errors() instead.
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853
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44
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45 --ben
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46 */
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47
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428
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48 #include <config.h>
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49 #include "lisp.h"
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50
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51 #include "buffer.h"
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52 #include "commands.h"
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53 #include "debug.h"
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872
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54 #include "device-impl.h"
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428
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55 #include "elhash.h"
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853
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56 #include "events.h"
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872
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57 #include "extents-impl.h"
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428
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58 #include "faces.h"
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872
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59 #include "frame-impl.h"
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428
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60 #include "glyphs.h"
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61 #include "gutter.h"
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62 #include "insdel.h"
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63 #include "menubar.h"
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872
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64 #include "objects-impl.h"
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1318
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65 #include "opaque.h"
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428
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66 #include "process.h"
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1292
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67 #include "profile.h"
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428
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68 #include "redisplay.h"
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69 #include "toolbar.h"
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872
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70 #include "window-impl.h"
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428
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71 #include "line-number.h"
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72 #include "file-coding.h"
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73
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442
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74 #include "sysfile.h"
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75
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428
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76 #ifdef HAVE_TTY
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77 #include "console-tty.h"
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78 #endif /* HAVE_TTY */
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79
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80 /* Note: We have to be careful throughout this code to properly handle
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867
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81 and differentiate between Ibytes and Ichars.
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82
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83 Since strings are generally composed of Ibytes, I've taken the tack
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84 that any contiguous set of Ibytes is called a "string", while
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85 any contiguous set of Ichars is called an "array". */
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428
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86
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87 /* Return value to indicate a failure by an add_*_rune routine to add
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88 a rune, but no propagation information needs to be returned. */
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89 #define ADD_FAILED (prop_block_dynarr *) 1
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90
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91 #define BEGIN_GLYPHS 0
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92 #define END_GLYPHS 1
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93 #define LEFT_GLYPHS 2
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94 #define RIGHT_GLYPHS 3
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95
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96 #define VERTICAL_CLIP(w, display) \
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442
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97 ((WINDOW_TTY_P (w) | (!display && scroll_on_clipped_lines)) \
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428
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98 ? INT_MAX \
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442
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99 : vertical_clip)
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428
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100
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101 /* The following structures are completely private to redisplay.c so
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102 we put them here instead of in a header file, for modularity. */
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103
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826
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104 /* NOTE: Bytexpos's not Charxpos's in this structure. */
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428
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105
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106 typedef struct position_redisplay_data_type
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107 {
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108 /* This information is normally filled in by the create_*_block
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109 routines and is used by the add_*_rune routines. */
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110 Lisp_Object window;
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111 /* if we are working with strings rather than buffers we need a
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112 handle to the string */
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113 Lisp_Object string;
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114 struct device *d;
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115 struct display_block *db;
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116 struct display_line *dl;
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867
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117 Ichar ch; /* Character that is to be added. This is
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428
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118 used to communicate this information to
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867
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119 add_ichar_rune(). */
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428
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120 Lisp_Object last_charset; /* The charset of the previous character.
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121 Used to optimize some lookups -- we
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122 only have to do some things when
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123 the charset changes. */
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124 face_index last_findex; /* The face index of the previous character.
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125 Needed to ensure the validity of the
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126 last_charset optimization. */
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127
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128 int last_char_width; /* The width of the previous character. */
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129 int font_is_bogus; /* If true, it means we couldn't instantiate
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130 the font for this charset, so we substitute
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131 ~'s from the ASCII charset. */
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826
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132 Bytexpos byte_charpos; /* Position of character we are processing. This
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133 is a Bytexpos, meaning it refers to bytes (not
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134 chars) and can refer to either buffers (1-based)
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135 or strings (0-based). We need to be careful
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136 when doing anything that references the text in
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137 the buffer or string. */
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138 Bytexpos byte_endpos; /* ????? Unknown, under-used. */
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428
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139 int pixpos;
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140 int max_pixpos;
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141 int blank_width; /* Width of the blank that is to be added.
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142 This is used to communicate this information
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143 to add_blank_rune().
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144
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145 This is also used rather cheesily to
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146 communicate the width of the eol-cursor-size
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147 blank that exists at the end of the line.
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867
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148 add_ichar_rune() is called cheesily with
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428
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149 the non-printing char '\n', which is stuck
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150 in the output routines with its width being
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151 BLANK_WIDTH. */
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826
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152 Bytexpos byte_cursor_charpos; /* This stores the buffer position of the
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153 cursor. */
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428
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154 unsigned int cursor_type :3;
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155 int cursor_x; /* rune block cursor is at */
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156 int start_col; /* Number of character columns (each column has
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157 a width of the default char width) that still
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158 need to be skipped. This is used for horizontal
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159 scrolling, where a certain number of columns
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160 (those off the left side of the screen) need
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161 to be skipped before anything is displayed. */
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826
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162 Bytexpos byte_start_col_enabled;
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428
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163 int start_col_xoffset; /* Number of pixels that still need to
|
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819
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164 be skipped. This is used for
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165 horizontal scrolling of glyphs, where we want
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166 to be able to scroll over part of the glyph. */
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428
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167
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168 int hscroll_glyph_width_adjust; /* how much the width of the hscroll
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169 glyph differs from space_width (w).
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170 0 if no hscroll glyph was used,
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171 i.e. the window is not scrolled
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172 horizontally. Used in tab
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173 calculations. */
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174
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175 /* Information about the face the text should be displayed in and
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176 any begin-glyphs and end-glyphs. */
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177 struct extent_fragment *ef;
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178 face_index findex;
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179
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819
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180 /* The height of a pixmap may either be predetermined if the user has set a
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181 baseline value, or it may be dependent on whatever the line ascent and
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182 descent values end up being, based just on font and pixmap-ascent
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183 information. In the first case we can immediately update the values, thus
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184 their inclusion here. In the last case we cannot determine the actual
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185 contribution to the line height until we have finished laying out all text
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186 on the line. Thus we propagate the max height of such pixmaps and do a
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187 final calculation (in calculate_baseline()) after all text has been added
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188 to the line. */
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428
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189 int new_ascent;
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190 int new_descent;
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191 int max_pixmap_height;
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819
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192 int need_baseline_computation;
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193 int end_glyph_width; /* Well, it is the kitchen sink after all ... */
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428
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194
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195 Lisp_Object result_str; /* String where we put the result of
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196 generating a formatted string in the modeline. */
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197 int is_modeline; /* Non-zero if we're generating the modeline. */
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198 Charcount modeline_charpos; /* Number of chars used in result_str so far;
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199 corresponds to bytepos. */
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200 Bytecount bytepos; /* Number of bytes used in result_str so far.
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201 We don't actually copy the bytes into result_str
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202 until the end because we don't know how big the
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203 string is going to be until then. */
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204 } pos_data;
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205
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206 enum prop_type
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207 {
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208 PROP_STRING,
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209 PROP_CHAR,
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210 PROP_MINIBUF_PROMPT,
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819
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211 PROP_BLANK,
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212 PROP_GLYPH
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428
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213 };
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214
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215 /* Data that should be propagated to the next line. Either a single
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867
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216 Ichar, a string of Ibyte's or a glyph.
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428
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217
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218 The actual data that is propagated ends up as a Dynarr of these
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219 blocks.
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220
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819
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221 prop_blocks are used to indicate that data that was supposed to go
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222 on the previous line couldn't actually be displayed. Generally this
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223 shouldn't happen if we are clipping the end of lines. If we are
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224 wrapping then we need to display the propagation data before moving
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225 on. Its questionable whether we should wrap or clip glyphs in this
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226 instance. Most e-lisp relies on clipping so we preserve this
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227 behavior.
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228
|
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867
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229 #### It's unclean that both Ichars and Ibytes are here.
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428
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230 */
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231
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232 typedef struct prop_block prop_block;
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233 struct prop_block
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234 {
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235 enum prop_type type;
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236
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237 union data
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238 {
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239 struct
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240 {
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867
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241 Ibyte *str;
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428
|
242 Bytecount len; /* length of the string. */
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243 } p_string;
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244
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245 struct
|
|
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246 {
|
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867
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247 Ichar ch;
|
|
826
|
248 Bytebpos byte_cursor_charpos; /* NOTE: is in Bytebpos's */
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428
|
249 unsigned int cursor_type :3;
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250 } p_char;
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251
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252 struct
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|
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253 {
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254 int width;
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255 face_index findex;
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256 } p_blank;
|
|
819
|
257
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258 struct
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|
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259 {
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|
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260 /* Not used as yet, but could be used to wrap rather than clip glyphs. */
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261 int width;
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262 Lisp_Object glyph;
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263 } p_glyph;
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264
|
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428
|
265 } data;
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266 };
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267
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|
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268 typedef struct
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|
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269 {
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|
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270 Dynarr_declare (prop_block);
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271 } prop_block_dynarr;
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272
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273
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|
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274 static Charcount generate_fstring_runes (struct window *w, pos_data *data,
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275 Charcount pos, Charcount min_pos,
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276 Charcount max_pos, Lisp_Object elt,
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277 int depth, int max_pixsize,
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438
|
278 face_index findex, int type,
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279 Charcount *offset,
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280 Lisp_Object cur_ext);
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428
|
281 static prop_block_dynarr *add_glyph_rune (pos_data *data,
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282 struct glyph_block *gb,
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283 int pos_type, int allow_cursor,
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284 struct glyph_cachel *cachel);
|
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665
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285 static Bytebpos create_text_block (struct window *w, struct display_line *dl,
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826
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286 Bytebpos byte_start_pos,
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287 prop_block_dynarr **prop,
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288 int type);
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428
|
289 static int create_overlay_glyph_block (struct window *w,
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290 struct display_line *dl);
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291 static void create_left_glyph_block (struct window *w,
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292 struct display_line *dl,
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293 int overlay_width);
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294 static void create_right_glyph_block (struct window *w,
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295 struct display_line *dl);
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296 static void redisplay_windows (Lisp_Object window, int skip_selected);
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867
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297 static void decode_mode_spec (struct window *w, Ichar spec, int type);
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428
|
298 static void free_display_line (struct display_line *dl);
|
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826
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299 static void update_line_start_cache (struct window *w, Charbpos from,
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300 Charbpos to, Charbpos point,
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301 int no_regen);
|
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665
|
302 static int point_visible (struct window *w, Charbpos point, int type);
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819
|
303 static void calculate_yoffset (struct display_line *dl,
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304 struct display_block *fixup);
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|
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305 static void calculate_baseline (pos_data *data);
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428
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306
|
|
1204
|
307 #ifdef ERROR_CHECK_DISPLAY
|
|
800
|
308 static void sledgehammer_check_redisplay_structs (void);
|
|
1204
|
309 #endif /* ERROR_CHECK_DISPLAY */
|
|
800
|
310
|
|
428
|
311 /* This used to be 10 but 30 seems to give much better performance. */
|
|
|
312 #define INIT_MAX_PREEMPTS 30
|
|
1268
|
313 static Fixnum max_preempts;
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|
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314
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|
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315 #define QUEUED_EVENTS_REQUIRED_FOR_PREEMPTION 4
|
|
428
|
316
|
|
1318
|
317 /* Note that doing this can call Lisp. */
|
|
428
|
318 #define REDISPLAY_PREEMPTION_CHECK \
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|
|
319 ((void) \
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|
|
320 (preempted = \
|
|
|
321 (!disable_preemption && \
|
|
|
322 ((preemption_count < max_preempts) || !NILP (Vexecuting_macro)) && \
|
|
1268
|
323 (!INTERACTIVE || \
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|
|
324 detect_input_pending (QUEUED_EVENTS_REQUIRED_FOR_PREEMPTION)))))
|
|
428
|
325
|
|
|
326 /*
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|
|
327 * Redisplay global variables.
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|
|
328 */
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|
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329
|
|
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330 /* We need a third set of display structures for the cursor motion
|
|
|
331 routines. We used to just give each window a third set. However,
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|
|
332 we always fully regenerate the structures when needed so there
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|
|
333 isn't any reason we need more than a single set. */
|
|
|
334 display_line_dynarr *cmotion_display_lines;
|
|
|
335
|
|
|
336 /* We store the extents that we need to generate in a Dynarr and then
|
|
|
337 frob them all on at the end of generating the string. We do it
|
|
|
338 this way rather than adding them as we generate the string because
|
|
|
339 we don't store the text into the resulting string until we're done
|
|
|
340 (to avoid having to resize the string multiple times), and we don't
|
|
|
341 want to go around adding extents to a string when the extents might
|
|
|
342 stretch off the end of the string. */
|
|
|
343 static EXTENT_dynarr *formatted_string_extent_dynarr;
|
|
|
344 static Bytecount_dynarr *formatted_string_extent_start_dynarr;
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|
|
345 static Bytecount_dynarr *formatted_string_extent_end_dynarr;
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|
|
346
|
|
|
347
|
|
|
348 /* #### probably temporary */
|
|
458
|
349 Fixnum cache_adjustment;
|
|
428
|
350
|
|
|
351 /* This holds a string representing the text corresponding to a single
|
|
|
352 modeline % spec. */
|
|
867
|
353 static Ibyte_dynarr *mode_spec_ibyte_string;
|
|
428
|
354
|
|
|
355 int in_display; /* 1 if in redisplay. */
|
|
|
356
|
|
1318
|
357 /* Whether we should delay size changes. Broken out of
|
|
|
358 enter_redisplay_critical_section(). */
|
|
|
359 int hold_frame_size_changes;
|
|
|
360
|
|
428
|
361 int disable_preemption; /* Used for debugging redisplay and for
|
|
|
362 force-redisplay. */
|
|
|
363
|
|
|
364 /* We only allow max_preempts preemptions before we force a redisplay. */
|
|
|
365 static int preemption_count;
|
|
|
366
|
|
|
367 /* Minimum pixel height of clipped bottom display line. */
|
|
458
|
368 Fixnum vertical_clip;
|
|
428
|
369
|
|
|
370 /* Minimum visible pixel width of clipped glyphs at right margin. */
|
|
458
|
371 Fixnum horizontal_clip;
|
|
428
|
372
|
|
|
373 /* Nonzero means reading single-character input with prompt
|
|
|
374 so put cursor on minibuffer after the prompt. */
|
|
|
375 int cursor_in_echo_area;
|
|
|
376 Lisp_Object Qcursor_in_echo_area;
|
|
|
377
|
|
|
378 /* Nonzero means truncate lines in all windows less wide than the frame */
|
|
|
379 int truncate_partial_width_windows;
|
|
|
380
|
|
|
381 /* non-nil if a buffer has changed since the last time redisplay completed */
|
|
|
382 int buffers_changed;
|
|
|
383 int buffers_changed_set;
|
|
|
384
|
|
|
385 /* non-nil if hscroll has changed somewhere or a buffer has been
|
|
|
386 narrowed or widened */
|
|
|
387 int clip_changed;
|
|
|
388 int clip_changed_set;
|
|
|
389
|
|
|
390 /* non-nil if any extent has changed since the last time redisplay completed */
|
|
|
391 int extents_changed;
|
|
|
392 int extents_changed_set;
|
|
|
393
|
|
|
394 /* non-nil if any face has changed since the last time redisplay completed */
|
|
|
395 int faces_changed;
|
|
|
396
|
|
|
397 /* Nonzero means some frames have been marked as garbaged */
|
|
|
398 int frame_changed;
|
|
|
399
|
|
|
400 /* non-zero if any of the builtin display glyphs (continuation,
|
|
|
401 hscroll, control-arrow, etc) is in need of updating
|
|
|
402 somewhere. */
|
|
|
403 int glyphs_changed;
|
|
|
404 int glyphs_changed_set;
|
|
|
405
|
|
442
|
406 /* non-zero if any subwindow has been deleted. */
|
|
428
|
407 int subwindows_changed;
|
|
|
408 int subwindows_changed_set;
|
|
|
409
|
|
|
410 /* non-zero if any displayed subwindow is in need of updating
|
|
|
411 somewhere. */
|
|
|
412 int subwindows_state_changed;
|
|
|
413 int subwindows_state_changed_set;
|
|
|
414
|
|
|
415 /* This variable is 1 if the icon has to be updated.
|
|
|
416 It is set to 1 when `frame-icon-glyph' changes. */
|
|
|
417 int icon_changed;
|
|
|
418 int icon_changed_set;
|
|
|
419
|
|
|
420 /* This variable is 1 if the menubar widget has to be updated.
|
|
|
421 It is set to 1 by set-menubar-dirty-flag and cleared when the widget
|
|
|
422 has been updated. */
|
|
|
423 int menubar_changed;
|
|
|
424 int menubar_changed_set;
|
|
|
425
|
|
|
426 /* true iff we should redraw the modelines on the next redisplay */
|
|
|
427 int modeline_changed;
|
|
|
428 int modeline_changed_set;
|
|
|
429
|
|
|
430 /* non-nil if point has changed in some buffer since the last time
|
|
|
431 redisplay completed */
|
|
|
432 int point_changed;
|
|
|
433 int point_changed_set;
|
|
|
434
|
|
|
435 /* non-nil if some frame has changed its size */
|
|
|
436 int size_changed;
|
|
|
437
|
|
|
438 /* non-nil if some device has signaled that it wants to change size */
|
|
|
439 int asynch_device_change_pending;
|
|
|
440
|
|
|
441 /* non-nil if any toolbar has changed */
|
|
|
442 int toolbar_changed;
|
|
|
443 int toolbar_changed_set;
|
|
|
444
|
|
905
|
445 /* Nonzero if some frame has changed the layout of internal elements
|
|
|
446 (gutters or toolbars). */
|
|
|
447 int frame_layout_changed;
|
|
|
448
|
|
428
|
449 /* non-nil if any gutter has changed */
|
|
|
450 int gutter_changed;
|
|
|
451 int gutter_changed_set;
|
|
|
452
|
|
|
453 /* non-nil if any window has changed since the last time redisplay completed */
|
|
|
454 int windows_changed;
|
|
|
455
|
|
|
456 /* non-nil if any frame's window structure has changed since the last
|
|
|
457 time redisplay completed */
|
|
|
458 int windows_structure_changed;
|
|
|
459
|
|
|
460 /* If non-nil, use vertical bar cursor. */
|
|
|
461 Lisp_Object Vbar_cursor;
|
|
|
462 Lisp_Object Qbar_cursor;
|
|
|
463
|
|
442
|
464 Lisp_Object Vvisible_bell; /* If true and the terminal will support it
|
|
|
465 then the frame will flash instead of
|
|
|
466 beeping when an error occurs */
|
|
428
|
467
|
|
|
468 /* Nonzero means no need to redraw the entire frame on resuming
|
|
|
469 a suspended Emacs. This is useful on terminals with multiple pages,
|
|
|
470 where one page is used for Emacs and another for all else. */
|
|
|
471 int no_redraw_on_reenter;
|
|
|
472
|
|
3360
|
473 Lisp_Object Vwindow_system; /* #### this variable is deprecated
|
|
|
474 nil or a symbol naming the window system
|
|
428
|
475 under which emacs is running
|
|
3360
|
476 (`x', `gtk', `mswindows', and `tty' are
|
|
|
477 supported -- yes, TTYs are window systems
|
|
|
478 for this purpose. */
|
|
428
|
479 Lisp_Object Vinitial_window_system;
|
|
|
480
|
|
|
481 Lisp_Object Vglobal_mode_string;
|
|
|
482
|
|
|
483 /* The number of lines scroll a window by when point leaves the window; if
|
|
|
484 it is <=0 then point is centered in the window */
|
|
458
|
485 Fixnum scroll_step;
|
|
428
|
486
|
|
|
487 /* Scroll up to this many lines, to bring point back on screen. */
|
|
458
|
488 Fixnum scroll_conservatively;
|
|
428
|
489
|
|
|
490 /* Marker for where to display an arrow on top of the buffer text. */
|
|
|
491 Lisp_Object Voverlay_arrow_position;
|
|
|
492 /* String to display for the arrow. */
|
|
|
493 Lisp_Object Voverlay_arrow_string;
|
|
|
494
|
|
442
|
495 Lisp_Object Qbuffer_list_changed_hook, Vbuffer_list_changed_hook;
|
|
|
496
|
|
458
|
497 static Fixnum last_display_warning_tick;
|
|
|
498 static Fixnum display_warning_tick;
|
|
428
|
499 Lisp_Object Qdisplay_warning_buffer;
|
|
|
500 int inhibit_warning_display;
|
|
|
501
|
|
|
502 Lisp_Object Vleft_margin_width, Vright_margin_width;
|
|
|
503 Lisp_Object Vminimum_line_ascent, Vminimum_line_descent;
|
|
|
504 Lisp_Object Vuse_left_overflow, Vuse_right_overflow;
|
|
|
505 Lisp_Object Vtext_cursor_visible_p;
|
|
|
506
|
|
1292
|
507 static Lisp_Object QSin_redisplay;
|
|
|
508
|
|
1318
|
509 static Lisp_Object Vpost_redisplay_actions;
|
|
|
510
|
|
428
|
511 int column_number_start_at_one;
|
|
|
512
|
|
442
|
513 Lisp_Object Qtop_bottom;
|
|
|
514
|
|
444
|
515 #define WINDOW_SCROLLED(w) ((w)->hscroll > 0 || (w)->left_xoffset)
|
|
428
|
516
|
|
1204
|
517 static const struct memory_description rune_dglyph_description_1[] = {
|
|
|
518 { XD_LISP_OBJECT, offsetof (struct rune_dglyph, glyph) },
|
|
|
519 { XD_LISP_OBJECT, offsetof (struct rune_dglyph, extent) },
|
|
|
520 { XD_END }
|
|
|
521 };
|
|
|
522
|
|
|
523 static const struct sized_memory_description rune_dglyph_description = {
|
|
|
524 sizeof (struct rune_dglyph), rune_dglyph_description_1
|
|
|
525 };
|
|
|
526
|
|
|
527 static const struct memory_description rune_object_description_1[] = {
|
|
2551
|
528 { XD_BLOCK_ARRAY, RUNE_DGLYPH, 1, { &rune_dglyph_description } },
|
|
1204
|
529 { XD_END }
|
|
|
530 };
|
|
|
531
|
|
|
532 static const struct sized_memory_description rune_object_description = {
|
|
|
533 0, rune_object_description_1
|
|
|
534 };
|
|
|
535
|
|
|
536 static const struct memory_description rune_description_1[] = {
|
|
|
537 { XD_INT, offsetof (rune, type) },
|
|
|
538 { XD_UNION, offsetof (rune, object),
|
|
2551
|
539 XD_INDIRECT (0, 0), { &rune_object_description } },
|
|
1204
|
540 { XD_END }
|
|
|
541 };
|
|
|
542
|
|
|
543 static const struct sized_memory_description rune_description = {
|
|
|
544 sizeof (rune),
|
|
|
545 rune_description_1
|
|
|
546 };
|
|
|
547
|
|
|
548 static const struct memory_description rune_dynarr_description_1[] = {
|
|
|
549 XD_DYNARR_DESC (rune_dynarr, &rune_description),
|
|
|
550 { XD_END }
|
|
|
551 };
|
|
|
552
|
|
|
553 static const struct sized_memory_description rune_dynarr_description = {
|
|
|
554 sizeof (rune_dynarr),
|
|
|
555 rune_dynarr_description_1
|
|
|
556 };
|
|
|
557
|
|
|
558 static const struct memory_description display_block_description_1[] = {
|
|
2367
|
559 { XD_BLOCK_PTR, offsetof (display_block, runes),
|
|
2551
|
560 1, { &rune_dynarr_description } },
|
|
1204
|
561 { XD_END }
|
|
|
562 };
|
|
|
563
|
|
|
564 static const struct sized_memory_description display_block_description = {
|
|
|
565 sizeof (display_block),
|
|
|
566 display_block_description_1
|
|
|
567 };
|
|
|
568
|
|
|
569 static const struct memory_description display_block_dynarr_description_1[] = {
|
|
|
570 XD_DYNARR_DESC (display_block_dynarr, &display_block_description),
|
|
|
571 { XD_END }
|
|
|
572 };
|
|
|
573
|
|
|
574 static const struct sized_memory_description display_block_dynarr_description = {
|
|
|
575 sizeof (display_block_dynarr),
|
|
|
576 display_block_dynarr_description_1
|
|
|
577 };
|
|
|
578
|
|
|
579 static const struct memory_description glyph_block_description_1[] = {
|
|
|
580 { XD_LISP_OBJECT, offsetof (glyph_block, glyph) },
|
|
|
581 { XD_LISP_OBJECT, offsetof (glyph_block, extent) },
|
|
|
582 { XD_END }
|
|
|
583 };
|
|
|
584
|
|
|
585 static const struct sized_memory_description glyph_block_description = {
|
|
|
586 sizeof (glyph_block),
|
|
|
587 glyph_block_description_1
|
|
|
588 };
|
|
|
589
|
|
|
590 static const struct memory_description glyph_block_dynarr_description_1[] = {
|
|
|
591 XD_DYNARR_DESC (glyph_block_dynarr, &glyph_block_description),
|
|
|
592 { XD_END }
|
|
|
593 };
|
|
|
594
|
|
|
595 static const struct sized_memory_description glyph_block_dynarr_description = {
|
|
|
596 sizeof (glyph_block_dynarr),
|
|
|
597 glyph_block_dynarr_description_1
|
|
|
598 };
|
|
|
599
|
|
|
600 static const struct memory_description display_line_description_1[] = {
|
|
2367
|
601 { XD_BLOCK_PTR, offsetof (display_line, display_blocks),
|
|
2551
|
602 1, { &display_block_dynarr_description } },
|
|
2367
|
603 { XD_BLOCK_PTR, offsetof (display_line, left_glyphs),
|
|
2551
|
604 1, { &glyph_block_dynarr_description } },
|
|
2367
|
605 { XD_BLOCK_PTR, offsetof (display_line, right_glyphs),
|
|
2551
|
606 1, { &glyph_block_dynarr_description } },
|
|
1204
|
607 { XD_END }
|
|
|
608 };
|
|
|
609
|
|
|
610 static const struct sized_memory_description display_line_description = {
|
|
|
611 sizeof (display_line),
|
|
|
612 display_line_description_1
|
|
|
613 };
|
|
|
614
|
|
|
615 static const struct memory_description display_line_dynarr_description_1[] = {
|
|
|
616 XD_DYNARR_DESC (display_line_dynarr, &display_line_description),
|
|
|
617 { XD_END }
|
|
|
618 };
|
|
|
619
|
|
|
620 const struct sized_memory_description display_line_dynarr_description = {
|
|
|
621 sizeof (display_line_dynarr),
|
|
|
622 display_line_dynarr_description_1
|
|
|
623 };
|
|
|
624
|
|
428
|
625
|
|
|
626 /***************************************************************************/
|
|
|
627 /* */
|
|
|
628 /* low-level interfaces onto device routines */
|
|
|
629 /* */
|
|
|
630 /***************************************************************************/
|
|
|
631
|
|
|
632 static int
|
|
867
|
633 redisplay_text_width_ichar_string (struct window *w, int findex,
|
|
|
634 Ichar *str, Charcount len)
|
|
428
|
635 {
|
|
|
636 unsigned char charsets[NUM_LEADING_BYTES];
|
|
|
637 Lisp_Object window;
|
|
|
638
|
|
867
|
639 find_charsets_in_ichar_string (charsets, str, len);
|
|
793
|
640 window = wrap_window (w);
|
|
428
|
641 ensure_face_cachel_complete (WINDOW_FACE_CACHEL (w, findex), window,
|
|
|
642 charsets);
|
|
|
643 return DEVMETH (XDEVICE (FRAME_DEVICE (XFRAME (WINDOW_FRAME (w)))),
|
|
|
644 text_width, (XFRAME (WINDOW_FRAME (w)),
|
|
|
645 WINDOW_FACE_CACHEL (w, findex), str, len));
|
|
|
646 }
|
|
|
647
|
|
867
|
648 static Ichar_dynarr *rtw_ichar_dynarr;
|
|
428
|
649
|
|
|
650 int
|
|
|
651 redisplay_text_width_string (struct window *w, int findex,
|
|
867
|
652 Ibyte *nonreloc, Lisp_Object reloc,
|
|
428
|
653 Bytecount offset, Bytecount len)
|
|
|
654 {
|
|
867
|
655 if (!rtw_ichar_dynarr)
|
|
|
656 rtw_ichar_dynarr = Dynarr_new (Ichar);
|
|
|
657 Dynarr_reset (rtw_ichar_dynarr);
|
|
428
|
658
|
|
|
659 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
660 if (STRINGP (reloc))
|
|
|
661 nonreloc = XSTRING_DATA (reloc);
|
|
867
|
662 convert_ibyte_string_into_ichar_dynarr (nonreloc, len, rtw_ichar_dynarr);
|
|
|
663 return redisplay_text_width_ichar_string
|
|
|
664 (w, findex, Dynarr_atp (rtw_ichar_dynarr, 0),
|
|
|
665 Dynarr_length (rtw_ichar_dynarr));
|
|
428
|
666 }
|
|
|
667
|
|
|
668 int
|
|
|
669 redisplay_frame_text_width_string (struct frame *f, Lisp_Object face,
|
|
867
|
670 Ibyte *nonreloc, Lisp_Object reloc,
|
|
428
|
671 Bytecount offset, Bytecount len)
|
|
|
672 {
|
|
|
673 unsigned char charsets[NUM_LEADING_BYTES];
|
|
|
674 Lisp_Object frame;
|
|
|
675 struct face_cachel cachel;
|
|
|
676
|
|
867
|
677 if (!rtw_ichar_dynarr)
|
|
|
678 rtw_ichar_dynarr = Dynarr_new (Ichar);
|
|
|
679 Dynarr_reset (rtw_ichar_dynarr);
|
|
428
|
680
|
|
|
681 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
682 if (STRINGP (reloc))
|
|
|
683 nonreloc = XSTRING_DATA (reloc);
|
|
867
|
684 convert_ibyte_string_into_ichar_dynarr (nonreloc, len, rtw_ichar_dynarr);
|
|
|
685 find_charsets_in_ibyte_string (charsets, nonreloc, len);
|
|
428
|
686 reset_face_cachel (&cachel);
|
|
|
687 cachel.face = face;
|
|
793
|
688 frame = wrap_frame (f);
|
|
428
|
689 ensure_face_cachel_complete (&cachel, frame, charsets);
|
|
|
690 return DEVMETH (XDEVICE (FRAME_DEVICE (f)),
|
|
867
|
691 text_width, (f, &cachel, Dynarr_atp (rtw_ichar_dynarr, 0),
|
|
|
692 Dynarr_length (rtw_ichar_dynarr)));
|
|
428
|
693 }
|
|
|
694
|
|
|
695 /* Return the display block from DL of the given TYPE. A display line
|
|
|
696 can have only one display block of each possible type. If DL does
|
|
|
697 not have a block of type TYPE, one will be created and added to DL. */
|
|
|
698
|
|
|
699 struct display_block *
|
|
|
700 get_display_block_from_line (struct display_line *dl, enum display_type type)
|
|
|
701 {
|
|
|
702 int elt;
|
|
|
703 struct display_block db;
|
|
|
704
|
|
|
705 /* Check if this display line already has a block of the desired type and
|
|
|
706 if so, return it. */
|
|
|
707 if (dl->display_blocks)
|
|
|
708 {
|
|
|
709 for (elt = 0; elt < Dynarr_length (dl->display_blocks); elt++)
|
|
|
710 {
|
|
|
711 if (Dynarr_at (dl->display_blocks, elt).type == type)
|
|
|
712 return Dynarr_atp (dl->display_blocks, elt);
|
|
|
713 }
|
|
|
714
|
|
|
715 /* There isn't an active block of the desired type, but there
|
|
|
716 might still be allocated blocks we need to reuse. */
|
|
|
717 if (elt < Dynarr_largest (dl->display_blocks))
|
|
|
718 {
|
|
|
719 struct display_block *dbp = Dynarr_atp (dl->display_blocks, elt);
|
|
|
720
|
|
3025
|
721 /* "add" the block to the list */
|
|
428
|
722 Dynarr_increment (dl->display_blocks);
|
|
|
723
|
|
|
724 /* initialize and return */
|
|
|
725 dbp->type = type;
|
|
|
726 return dbp;
|
|
|
727 }
|
|
|
728 }
|
|
|
729 else
|
|
|
730 {
|
|
|
731 /* This line doesn't have any display blocks, so initialize the display
|
|
|
732 bock array. */
|
|
|
733 dl->display_blocks = Dynarr_new (display_block);
|
|
|
734 }
|
|
|
735
|
|
|
736 /* The line doesn't have a block of the desired type so go ahead and create
|
|
|
737 one and add it to the line. */
|
|
|
738 xzero (db);
|
|
|
739 db.type = type;
|
|
|
740 db.runes = Dynarr_new (rune);
|
|
|
741 Dynarr_add (dl->display_blocks, db);
|
|
|
742
|
|
|
743 /* Return the newly added display block. */
|
|
|
744 elt = Dynarr_length (dl->display_blocks) - 1;
|
|
|
745
|
|
|
746 return Dynarr_atp (dl->display_blocks, elt);
|
|
|
747 }
|
|
|
748
|
|
|
749 static int
|
|
|
750 tab_char_width (struct window *w)
|
|
|
751 {
|
|
|
752 struct buffer *b = XBUFFER (w->buffer);
|
|
|
753 int char_tab_width = XINT (b->tab_width);
|
|
|
754
|
|
|
755 if (char_tab_width <= 0 || char_tab_width > 1000) char_tab_width = 8;
|
|
|
756
|
|
|
757 return char_tab_width;
|
|
|
758 }
|
|
|
759
|
|
|
760 static int
|
|
|
761 space_width (struct window *w)
|
|
|
762 {
|
|
3659
|
763 /* While tabs are traditionally composed of spaces, for variable-width
|
|
428
|
764 fonts the space character tends to give too narrow a value. So
|
|
|
765 we use 'n' instead. Except that we don't. We use the default
|
|
|
766 character width for the default face. If this is actually
|
|
|
767 defined by the font then it is probably the best thing to
|
|
|
768 actually use. If it isn't, we have assumed it is 'n' and have
|
|
|
769 already calculated its width. Thus we can avoid a call to
|
|
|
770 XTextWidth on X frames by just querying the default width. */
|
|
|
771 return XFONT_INSTANCE
|
|
|
772 (WINDOW_FACE_CACHEL_FONT (w, DEFAULT_INDEX, Vcharset_ascii))->width;
|
|
|
773 }
|
|
|
774
|
|
|
775 static int
|
|
|
776 tab_pix_width (struct window *w)
|
|
|
777 {
|
|
|
778 return space_width (w) * tab_char_width (w);
|
|
|
779 }
|
|
|
780
|
|
|
781 /* Given a pixel position in a window, return the pixel location of
|
|
|
782 the next tabstop. Tabs are calculated from the left window edge in
|
|
|
783 terms of spaces displayed in the default face. Formerly the space
|
|
|
784 width was determined using the currently active face. That method
|
|
|
785 leads to tabstops which do not line up. */
|
|
|
786
|
|
|
787 static int
|
|
|
788 next_tab_position (struct window *w, int start_pixpos, int left_pixpos)
|
|
|
789 {
|
|
|
790 int n_pos = left_pixpos;
|
|
|
791 int pix_tab_width = tab_pix_width (w);
|
|
|
792
|
|
|
793 /* Adjust n_pos for any hscrolling which has happened. */
|
|
|
794 if (WINDOW_SCROLLED (w))
|
|
|
795 n_pos -= space_width (w) * (w->hscroll - 1) + w->left_xoffset;
|
|
|
796
|
|
|
797 while (n_pos <= start_pixpos)
|
|
|
798 n_pos += pix_tab_width;
|
|
|
799
|
|
|
800 return n_pos;
|
|
|
801 }
|
|
|
802
|
|
|
803 /* For the given window, calculate the outside and margin boundaries for a
|
|
|
804 display line. The whitespace boundaries must be calculated by the text
|
|
|
805 layout routines. */
|
|
|
806
|
|
|
807 layout_bounds
|
|
|
808 calculate_display_line_boundaries (struct window *w, int modeline)
|
|
|
809 {
|
|
|
810 layout_bounds bounds;
|
|
|
811
|
|
|
812 /* Set the outermost boundaries which are the boundaries of the
|
|
|
813 window itself minus the gutters (and minus the scrollbars if this
|
|
|
814 is for the modeline). */
|
|
|
815 if (!modeline)
|
|
|
816 {
|
|
|
817 bounds.left_out = WINDOW_TEXT_LEFT (w);
|
|
|
818 bounds.right_out = WINDOW_TEXT_RIGHT (w);
|
|
|
819 }
|
|
|
820 else
|
|
|
821 {
|
|
|
822 bounds.left_out = WINDOW_MODELINE_LEFT (w);
|
|
|
823 bounds.right_out = WINDOW_MODELINE_RIGHT (w);
|
|
|
824 }
|
|
|
825
|
|
|
826 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
827 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
828 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
829
|
|
|
830 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
831 depend on the contents of the line being displayed. */
|
|
|
832 bounds.left_white = bounds.left_in;
|
|
|
833 bounds.right_white = bounds.right_in;
|
|
|
834
|
|
|
835 return bounds;
|
|
|
836 }
|
|
|
837
|
|
819
|
838 /* This takes a display_block and its containing line and corrects the yoffset
|
|
|
839 of each glyph in the block to cater for the ascent of the line as a
|
|
|
840 whole. Must be called *after* the line-ascent is known! */
|
|
|
841
|
|
|
842 static void
|
|
|
843 calculate_yoffset (struct display_line *dl, struct display_block *fixup)
|
|
|
844 {
|
|
|
845 int i;
|
|
|
846 for (i=0; i<Dynarr_length (fixup->runes); i++)
|
|
|
847 {
|
|
|
848 struct rune *r = Dynarr_atp (fixup->runes,i);
|
|
|
849 if (r->type == RUNE_DGLYPH)
|
|
|
850 {
|
|
|
851 if (r->object.dglyph.ascent < dl->ascent)
|
|
|
852 r->object.dglyph.yoffset = dl->ascent - r->object.dglyph.ascent +
|
|
|
853 r->object.dglyph.descent;
|
|
|
854 }
|
|
|
855 }
|
|
|
856 }
|
|
|
857
|
|
|
858 /* Calculate the textual baseline (the ascent and descent values for the
|
|
|
859 display_line as a whole).
|
|
|
860
|
|
|
861 If the baseline is completely blank, or contains no manually positioned
|
|
|
862 glyphs, then the textual baseline is simply the baseline of the default font.
|
|
|
863 (The `contains no manually positioned glyphs' part is actually done for
|
|
867
|
864 us by `add_ichar_rune'.)
|
|
819
|
865
|
|
|
866 If the baseline contains pixmaps, and they're all manually positioned, then
|
|
|
867 the textual baseline location is constrained that way, and we need do no
|
|
|
868 work.
|
|
|
869
|
|
|
870 If the baseline contains pixmaps, and at least one is automatically
|
|
|
871 positioned, then the textual ascent is the largest ascent on the line, and
|
|
|
872 the textual descent is the largest descent (which is how things are set up at
|
|
|
873 entry to this function anyway): except that if the max_ascent + max_descent
|
|
|
874 is too small for the height of the line (say you've adjusted the baseline of
|
|
|
875 a short glyph, and there's a tall one next to it), then take the ascent and
|
|
|
876 descent for the line individually from the largest of the explicitly set
|
|
|
877 ascent/descent, and the rescaled ascent/descent of the default font, scaled
|
|
|
878 such that the largest glyph will fit.
|
|
|
879
|
|
|
880 This means that if you have a short glyph (but taller than the default
|
|
|
881 font's descent) forced right under the baseline, and a really tall
|
|
|
882 automatically positioned glyph, that the descent for the line is just big
|
|
|
883 enough for the manually positioned short glyph, and the tall one uses as
|
|
|
884 much of that space as the default font would were it as tall as the tall
|
|
|
885 glyph; but that the ascent is big enough for the tall glyph to fit.
|
|
|
886
|
|
|
887 This behaviour means that under no circumstances will changing the baseline
|
|
|
888 of a short glyph cause a tall glyph to move around; nor will it move the
|
|
|
889 textual baseline more than necessary. (Changing a tall glyph's baseline
|
|
|
890 might move the text's baseline arbitrarily, of course.) */
|
|
|
891
|
|
|
892 static void
|
|
|
893 calculate_baseline (pos_data *data)
|
|
|
894 {
|
|
|
895 /* Blank line: baseline is default font's baseline. */
|
|
|
896
|
|
|
897 if (!data->new_ascent && !data->new_descent)
|
|
|
898 {
|
|
|
899 /* We've got a blank line so initialize these values from the default
|
|
|
900 face. */
|
|
|
901 default_face_font_info (data->window, &data->new_ascent,
|
|
|
902 &data->new_descent, 0, 0, 0);
|
|
|
903 }
|
|
|
904
|
|
|
905 /* No automatically positioned glyphs? Return at once. */
|
|
|
906 if (!data->need_baseline_computation)
|
|
|
907 return;
|
|
|
908
|
|
|
909 /* Is the tallest glyph on the line automatically positioned?
|
|
|
910 If it's manually positioned, or it's automatically positioned
|
|
|
911 and there's enough room for it anyway, we need do no more work. */
|
|
|
912 if (data->max_pixmap_height > data->new_ascent + data->new_descent)
|
|
|
913 {
|
|
|
914 int default_font_ascent, default_font_descent, default_font_height;
|
|
|
915 int scaled_default_font_ascent, scaled_default_font_descent;
|
|
|
916
|
|
|
917 default_face_font_info (data->window, &default_font_ascent,
|
|
|
918 &default_font_descent, &default_font_height,
|
|
|
919 0, 0);
|
|
|
920
|
|
|
921 scaled_default_font_ascent = data->max_pixmap_height *
|
|
|
922 default_font_ascent / default_font_height;
|
|
|
923
|
|
|
924 data->new_ascent = max (data->new_ascent, scaled_default_font_ascent);
|
|
|
925
|
|
|
926 /* The ascent may have expanded now. Do we still need to grow the descent,
|
|
|
927 or are things big enough?
|
|
|
928
|
|
|
929 The +1 caters for the baseline row itself. */
|
|
|
930 if (data->max_pixmap_height > data->new_ascent + data->new_descent)
|
|
|
931 {
|
|
|
932 scaled_default_font_descent = (data->max_pixmap_height *
|
|
|
933 default_font_descent / default_font_height) + 1;
|
|
|
934
|
|
|
935 data->new_descent = max (data->new_descent, scaled_default_font_descent);
|
|
|
936 }
|
|
|
937 }
|
|
|
938 }
|
|
|
939
|
|
428
|
940 /* Given a display line and a starting position, ensure that the
|
|
|
941 contents of the display line accurately represent the visual
|
|
|
942 representation of the buffer contents starting from the given
|
|
|
943 position when displayed in the given window. The display line ends
|
|
|
944 when the contents of the line reach the right boundary of the given
|
|
|
945 window. */
|
|
|
946
|
|
665
|
947 static Charbpos
|
|
428
|
948 generate_display_line (struct window *w, struct display_line *dl, int bounds,
|
|
665
|
949 Charbpos start_pos, prop_block_dynarr **prop,
|
|
428
|
950 int type)
|
|
|
951 {
|
|
826
|
952 Charbpos ret_charpos;
|
|
428
|
953 int overlay_width;
|
|
|
954 struct buffer *b = XBUFFER (WINDOW_BUFFER (w));
|
|
|
955
|
|
|
956 /* If our caller hasn't already set the boundaries, then do so now. */
|
|
|
957 if (!bounds)
|
|
|
958 dl->bounds = calculate_display_line_boundaries (w, 0);
|
|
|
959
|
|
|
960 /* Reset what this line is using. */
|
|
|
961 if (dl->display_blocks)
|
|
|
962 Dynarr_reset (dl->display_blocks);
|
|
|
963 if (dl->left_glyphs)
|
|
|
964 {
|
|
|
965 Dynarr_free (dl->left_glyphs);
|
|
|
966 dl->left_glyphs = 0;
|
|
|
967 }
|
|
|
968 if (dl->right_glyphs)
|
|
|
969 {
|
|
|
970 Dynarr_free (dl->right_glyphs);
|
|
|
971 dl->right_glyphs = 0;
|
|
|
972 }
|
|
|
973
|
|
|
974 /* We aren't generating a modeline at the moment. */
|
|
|
975 dl->modeline = 0;
|
|
|
976
|
|
|
977 /* Create a display block for the text region of the line. */
|
|
|
978 {
|
|
|
979 /* #### urk urk urk!!! Chuck fix this shit! */
|
|
665
|
980 Bytebpos hacked_up_bytebpos =
|
|
|
981 create_text_block (w, dl, charbpos_to_bytebpos (b, start_pos),
|
|
428
|
982 prop, type);
|
|
826
|
983 if (hacked_up_bytebpos > BYTE_BUF_ZV (b))
|
|
|
984 ret_charpos = BUF_ZV (b) + 1;
|
|
428
|
985 else
|
|
826
|
986 ret_charpos = bytebpos_to_charbpos (b, hacked_up_bytebpos);
|
|
428
|
987 }
|
|
826
|
988 dl->charpos = start_pos;
|
|
|
989 if (dl->end_charpos < dl->charpos)
|
|
|
990 dl->end_charpos = dl->charpos;
|
|
428
|
991
|
|
|
992 if (MARKERP (Voverlay_arrow_position)
|
|
|
993 && EQ (w->buffer, Fmarker_buffer (Voverlay_arrow_position))
|
|
|
994 && start_pos == marker_position (Voverlay_arrow_position)
|
|
|
995 && (STRINGP (Voverlay_arrow_string)
|
|
|
996 || GLYPHP (Voverlay_arrow_string)))
|
|
|
997 {
|
|
|
998 overlay_width = create_overlay_glyph_block (w, dl);
|
|
|
999 }
|
|
|
1000 else
|
|
|
1001 overlay_width = 0;
|
|
|
1002
|
|
|
1003 /* If there are left glyphs associated with any character in the
|
|
|
1004 text block, then create a display block to handle them. */
|
|
|
1005 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
1006 create_left_glyph_block (w, dl, overlay_width);
|
|
|
1007
|
|
|
1008 /* If there are right glyphs associated with any character in the
|
|
|
1009 text block, then create a display block to handle them. */
|
|
|
1010 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
1011 create_right_glyph_block (w, dl);
|
|
|
1012
|
|
|
1013 /* In the future additional types of display blocks may be generated
|
|
|
1014 here. */
|
|
|
1015
|
|
826
|
1016 w->last_redisplay_pos = ret_charpos;
|
|
|
1017
|
|
|
1018 return ret_charpos;
|
|
428
|
1019 }
|
|
|
1020
|
|
|
1021 /* Adds an hscroll glyph to a display block. If this is called, then
|
|
|
1022 the block had better be empty.
|
|
|
1023
|
|
|
1024 Yes, there are multiple places where this function is called but
|
|
|
1025 that is the way it has to be. Each calling function has to deal
|
|
826
|
1026 with byte_start_col_enabled a little differently depending on the
|
|
428
|
1027 object being worked with. */
|
|
|
1028
|
|
|
1029 static prop_block_dynarr *
|
|
|
1030 add_hscroll_rune (pos_data *data)
|
|
|
1031 {
|
|
|
1032 struct glyph_block gb;
|
|
|
1033 prop_block_dynarr *retval;
|
|
826
|
1034 Bytebpos byte_old_cursor_charpos = data->byte_cursor_charpos;
|
|
647
|
1035 int old_cursor_type = data->cursor_type;
|
|
826
|
1036 Bytebpos byte_old_charpos = data->byte_charpos;
|
|
428
|
1037
|
|
|
1038 if (data->cursor_type == CURSOR_ON
|
|
826
|
1039 && data->byte_cursor_charpos >= data->byte_start_col_enabled
|
|
|
1040 && data->byte_cursor_charpos <= data->byte_charpos)
|
|
|
1041 {
|
|
|
1042 data->byte_cursor_charpos = data->byte_start_col_enabled;
|
|
428
|
1043 }
|
|
|
1044 else
|
|
|
1045 {
|
|
|
1046 data->cursor_type = NO_CURSOR;
|
|
|
1047 }
|
|
|
1048
|
|
826
|
1049 data->byte_endpos = data->byte_charpos;
|
|
|
1050 data->byte_charpos = data->byte_start_col_enabled;
|
|
428
|
1051
|
|
|
1052 gb.extent = Qnil;
|
|
|
1053 gb.glyph = Vhscroll_glyph;
|
|
|
1054 {
|
|
|
1055 int oldpixpos = data->pixpos;
|
|
442
|
1056 retval = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0,
|
|
428
|
1057 GLYPH_CACHEL (XWINDOW (data->window),
|
|
|
1058 HSCROLL_GLYPH_INDEX));
|
|
|
1059 data->hscroll_glyph_width_adjust =
|
|
|
1060 data->pixpos - oldpixpos - space_width (XWINDOW (data->window));
|
|
|
1061 }
|
|
826
|
1062 data->byte_endpos = 0;
|
|
|
1063 data->byte_cursor_charpos = byte_old_cursor_charpos;
|
|
428
|
1064 data->cursor_type = old_cursor_type;
|
|
826
|
1065 data->byte_charpos = byte_old_charpos;
|
|
|
1066
|
|
|
1067 data->byte_start_col_enabled = 0;
|
|
428
|
1068 return retval;
|
|
|
1069 }
|
|
|
1070
|
|
793
|
1071 /* Adds a character rune to a display block. If there is not enough room
|
|
|
1072 to fit the rune on the display block (as determined by the MAX_PIXPOS)
|
|
|
1073 then it adds nothing and returns ADD_FAILED. If
|
|
|
1074 NO_CONTRIBUTE_TO_LINE_HEIGHT is non-zero, don't allow the char's height
|
|
867
|
1075 to affect the total line height. (See add_ibyte_string_runes()). */
|
|
428
|
1076
|
|
|
1077 static prop_block_dynarr *
|
|
867
|
1078 add_ichar_rune_1 (pos_data *data, int no_contribute_to_line_height)
|
|
428
|
1079 {
|
|
|
1080 struct rune rb, *crb;
|
|
|
1081 int width, local;
|
|
|
1082
|
|
|
1083 if (data->start_col)
|
|
|
1084 {
|
|
|
1085 data->start_col--;
|
|
|
1086
|
|
|
1087 if (data->start_col)
|
|
|
1088 return NULL;
|
|
|
1089 }
|
|
|
1090
|
|
826
|
1091 if (data->byte_start_col_enabled)
|
|
428
|
1092 {
|
|
|
1093 return add_hscroll_rune (data);
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 if (data->ch == '\n')
|
|
|
1097 {
|
|
|
1098 data->font_is_bogus = 0;
|
|
|
1099 /* Cheesy end-of-line pseudo-character. */
|
|
|
1100 width = data->blank_width;
|
|
|
1101 }
|
|
|
1102 else
|
|
|
1103 {
|
|
867
|
1104 Lisp_Object charset = ichar_charset (data->ch);
|
|
428
|
1105 if (!EQ (charset, data->last_charset) ||
|
|
|
1106 data->findex != data->last_findex)
|
|
|
1107 {
|
|
|
1108 /* OK, we need to do things the hard way. */
|
|
|
1109 struct window *w = XWINDOW (data->window);
|
|
|
1110 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, data->findex);
|
|
|
1111 Lisp_Object font_instance =
|
|
|
1112 ensure_face_cachel_contains_charset (cachel, data->window,
|
|
|
1113 charset);
|
|
440
|
1114 Lisp_Font_Instance *fi;
|
|
428
|
1115
|
|
|
1116 if (EQ (font_instance, Vthe_null_font_instance))
|
|
|
1117 {
|
|
|
1118 font_instance = FACE_CACHEL_FONT (cachel, Vcharset_ascii);
|
|
|
1119 data->font_is_bogus = 1;
|
|
|
1120 }
|
|
|
1121 else
|
|
|
1122 data->font_is_bogus = 0;
|
|
|
1123
|
|
|
1124 fi = XFONT_INSTANCE (font_instance);
|
|
771
|
1125 if (!fi->proportional_p || data->font_is_bogus)
|
|
|
1126 {
|
|
867
|
1127 Ichar ch = data->font_is_bogus ? '~' : data->ch;
|
|
771
|
1128
|
|
|
1129 data->last_char_width =
|
|
867
|
1130 redisplay_text_width_ichar_string (XWINDOW (data->window),
|
|
771
|
1131 data->findex, &ch, 1);
|
|
|
1132 }
|
|
428
|
1133 else
|
|
|
1134 data->last_char_width = -1;
|
|
819
|
1135
|
|
793
|
1136 if (!no_contribute_to_line_height)
|
|
|
1137 {
|
|
|
1138 data->new_ascent = max (data->new_ascent, (int) fi->ascent);
|
|
|
1139 data->new_descent = max (data->new_descent, (int) fi->descent);
|
|
|
1140 }
|
|
819
|
1141
|
|
428
|
1142 data->last_charset = charset;
|
|
|
1143 data->last_findex = data->findex;
|
|
|
1144 }
|
|
|
1145
|
|
|
1146 width = data->last_char_width;
|
|
771
|
1147 if (width < 0) /* proportional fonts */
|
|
867
|
1148 width = redisplay_text_width_ichar_string (XWINDOW (data->window),
|
|
771
|
1149 data->findex,
|
|
|
1150 &data->ch, 1);
|
|
428
|
1151 }
|
|
|
1152
|
|
|
1153 if (data->max_pixpos != -1 && (data->pixpos + width > data->max_pixpos))
|
|
|
1154 {
|
|
|
1155 return ADD_FAILED;
|
|
|
1156 }
|
|
|
1157
|
|
|
1158 if (Dynarr_length (data->db->runes) < Dynarr_largest (data->db->runes))
|
|
|
1159 {
|
|
|
1160 crb = Dynarr_atp (data->db->runes, Dynarr_length (data->db->runes));
|
|
|
1161 local = 0;
|
|
|
1162 }
|
|
|
1163 else
|
|
|
1164 {
|
|
|
1165 crb = &rb;
|
|
|
1166 local = 1;
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 crb->findex = data->findex;
|
|
|
1170 crb->xpos = data->pixpos;
|
|
|
1171 crb->width = width;
|
|
826
|
1172 if (data->byte_charpos)
|
|
428
|
1173 {
|
|
|
1174 if (NILP (data->string))
|
|
826
|
1175 crb->charpos =
|
|
793
|
1176 bytebpos_to_charbpos (XBUFFER (WINDOW_BUFFER
|
|
|
1177 (XWINDOW (data->window))),
|
|
826
|
1178 data->byte_charpos);
|
|
428
|
1179 else
|
|
826
|
1180 crb->charpos =
|
|
|
1181 string_index_byte_to_char (data->string, data->byte_charpos);
|
|
428
|
1182 }
|
|
|
1183 else if (data->is_modeline)
|
|
826
|
1184 crb->charpos = data->modeline_charpos;
|
|
428
|
1185 else
|
|
442
|
1186 /* Text but not in buffer */
|
|
826
|
1187 crb->charpos = 0;
|
|
428
|
1188 crb->type = RUNE_CHAR;
|
|
|
1189 crb->object.chr.ch = data->font_is_bogus ? '~' : data->ch;
|
|
|
1190 crb->endpos = 0;
|
|
|
1191
|
|
|
1192 if (data->cursor_type == CURSOR_ON)
|
|
|
1193 {
|
|
826
|
1194 if (data->byte_charpos == data->byte_cursor_charpos)
|
|
428
|
1195 {
|
|
|
1196 crb->cursor_type = CURSOR_ON;
|
|
|
1197 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1198 }
|
|
|
1199 else
|
|
|
1200 crb->cursor_type = CURSOR_OFF;
|
|
|
1201 }
|
|
|
1202 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1203 {
|
|
|
1204 crb->cursor_type = CURSOR_ON;
|
|
|
1205 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1206 data->cursor_type = NO_CURSOR;
|
|
|
1207 }
|
|
|
1208 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
1209 crb->cursor_type = IGNORE_CURSOR;
|
|
|
1210 else
|
|
|
1211 crb->cursor_type = CURSOR_OFF;
|
|
|
1212
|
|
|
1213 if (local)
|
|
|
1214 Dynarr_add (data->db->runes, *crb);
|
|
|
1215 else
|
|
|
1216 Dynarr_increment (data->db->runes);
|
|
|
1217
|
|
|
1218 data->pixpos += width;
|
|
|
1219
|
|
|
1220 return NULL;
|
|
|
1221 }
|
|
|
1222
|
|
793
|
1223 static prop_block_dynarr *
|
|
867
|
1224 add_ichar_rune (pos_data *data)
|
|
|
1225 {
|
|
|
1226 return add_ichar_rune_1 (data, 0);
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 /* Given a string C_STRING of length C_LENGTH, call add_ichar_rune for
|
|
793
|
1230 each character in the string. Propagate any left-over data unless
|
|
|
1231 NO_PROP is non-zero. If NO_CONTRIBUTE_TO_LINE_HEIGHT is non-zero, don't
|
|
|
1232 allow this character to increase the total height of the line. (This is
|
|
|
1233 used when the character is part of a text glyph. In that case, the
|
|
|
1234 glyph code itself adjusts the line height as necessary, depending on
|
|
|
1235 whether glyph-contrib-p is true.) */
|
|
428
|
1236
|
|
|
1237 static prop_block_dynarr *
|
|
867
|
1238 add_ibyte_string_runes (pos_data *data, Ibyte *c_string,
|
|
793
|
1239 Bytecount c_length, int no_prop,
|
|
|
1240 int no_contribute_to_line_height)
|
|
428
|
1241 {
|
|
867
|
1242 Ibyte *pos, *end = c_string + c_length;
|
|
428
|
1243 prop_block_dynarr *prop;
|
|
|
1244
|
|
|
1245 /* #### This function is too simplistic. It needs to do the same
|
|
|
1246 sort of character interpretation (display-table lookup,
|
|
|
1247 ctl-arrow checking), etc. that create_text_block() does.
|
|
|
1248 The functionality to do this in that routine needs to be
|
|
|
1249 modularized. */
|
|
|
1250
|
|
|
1251 for (pos = c_string; pos < end;)
|
|
|
1252 {
|
|
867
|
1253 Ibyte *old_pos = pos;
|
|
|
1254
|
|
|
1255 data->ch = itext_ichar (pos);
|
|
|
1256
|
|
|
1257 prop = add_ichar_rune_1 (data, no_contribute_to_line_height);
|
|
428
|
1258
|
|
|
1259 if (prop)
|
|
|
1260 {
|
|
|
1261 if (no_prop)
|
|
|
1262 return ADD_FAILED;
|
|
|
1263 else
|
|
|
1264 {
|
|
|
1265 struct prop_block pb;
|
|
|
1266 Bytecount len = end - pos;
|
|
|
1267 prop = Dynarr_new (prop_block);
|
|
|
1268
|
|
|
1269 pb.type = PROP_STRING;
|
|
867
|
1270 pb.data.p_string.str = xnew_array (Ibyte, len);
|
|
428
|
1271 strncpy ((char *) pb.data.p_string.str, (char *) pos, len);
|
|
|
1272 pb.data.p_string.len = len;
|
|
|
1273
|
|
|
1274 Dynarr_add (prop, pb);
|
|
|
1275 return prop;
|
|
|
1276 }
|
|
|
1277 }
|
|
867
|
1278 INC_IBYTEPTR (pos);
|
|
428
|
1279 assert (pos <= end);
|
|
464
|
1280 /* #### Duplicate code from add_string_to_fstring_db_runes
|
|
|
1281 should we do more?*/
|
|
|
1282 data->bytepos += pos - old_pos;
|
|
428
|
1283 }
|
|
|
1284
|
|
|
1285 return NULL;
|
|
|
1286 }
|
|
|
1287
|
|
|
1288 /* Add a single rune of the specified width. The area covered by this
|
|
|
1289 rune will be displayed in the foreground color of the associated
|
|
|
1290 face. */
|
|
|
1291
|
|
|
1292 static prop_block_dynarr *
|
|
|
1293 add_blank_rune (pos_data *data, struct window *w, int char_tab_width)
|
|
|
1294 {
|
|
|
1295 struct rune rb;
|
|
|
1296
|
|
|
1297 /* If data->start_col is not 0 then this call to add_blank_rune must have
|
|
|
1298 been to add it as a tab. */
|
|
|
1299 if (data->start_col)
|
|
|
1300 {
|
|
|
1301 /* assert (w != NULL) */
|
|
|
1302 prop_block_dynarr *retval;
|
|
|
1303
|
|
|
1304 /* If we have still not fully scrolled horizontally, subtract
|
|
|
1305 the width of this tab and return. */
|
|
|
1306 if (char_tab_width < data->start_col)
|
|
|
1307 {
|
|
|
1308 data->start_col -= char_tab_width;
|
|
|
1309 return NULL;
|
|
|
1310 }
|
|
|
1311 else if (char_tab_width == data->start_col)
|
|
|
1312 data->blank_width = 0;
|
|
|
1313 else
|
|
|
1314 {
|
|
|
1315 int spcwid = space_width (w);
|
|
|
1316
|
|
|
1317 if (spcwid >= data->blank_width)
|
|
|
1318 data->blank_width = 0;
|
|
|
1319 else
|
|
|
1320 data->blank_width -= spcwid;
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 data->start_col = 0;
|
|
|
1324 retval = add_hscroll_rune (data);
|
|
|
1325
|
|
|
1326 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1327 if (retval != NULL || !data->blank_width)
|
|
|
1328 return retval;
|
|
|
1329 }
|
|
|
1330
|
|
|
1331 /* Blank runes are always calculated to fit. */
|
|
|
1332 assert (data->pixpos + data->blank_width <= data->max_pixpos);
|
|
|
1333
|
|
|
1334 rb.findex = data->findex;
|
|
|
1335 rb.xpos = data->pixpos;
|
|
|
1336 rb.width = data->blank_width;
|
|
826
|
1337 if (data->byte_charpos)
|
|
|
1338 rb.charpos =
|
|
665
|
1339 bytebpos_to_charbpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
826
|
1340 data->byte_charpos);
|
|
428
|
1341 else
|
|
|
1342 /* #### and this is really correct too? */
|
|
826
|
1343 rb.charpos = 0;
|
|
428
|
1344 rb.endpos = 0;
|
|
|
1345 rb.type = RUNE_BLANK;
|
|
|
1346
|
|
|
1347 if (data->cursor_type == CURSOR_ON)
|
|
|
1348 {
|
|
826
|
1349 if (data->byte_charpos == data->byte_cursor_charpos)
|
|
428
|
1350 {
|
|
|
1351 rb.cursor_type = CURSOR_ON;
|
|
|
1352 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1353 }
|
|
|
1354 else
|
|
|
1355 rb.cursor_type = CURSOR_OFF;
|
|
|
1356 }
|
|
|
1357 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1358 {
|
|
|
1359 rb.cursor_type = CURSOR_ON;
|
|
|
1360 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1361 data->cursor_type = NO_CURSOR;
|
|
|
1362 }
|
|
|
1363 else
|
|
|
1364 rb.cursor_type = CURSOR_OFF;
|
|
|
1365
|
|
|
1366 Dynarr_add (data->db->runes, rb);
|
|
|
1367 data->pixpos += data->blank_width;
|
|
|
1368
|
|
|
1369 return NULL;
|
|
|
1370 }
|
|
|
1371
|
|
|
1372 /* Add runes representing a character in octal. */
|
|
|
1373
|
|
|
1374 #define ADD_NEXT_OCTAL_RUNE_CHAR do \
|
|
|
1375 { \
|
|
867
|
1376 if (add_failed || (add_failed = add_ichar_rune (data))) \
|
|
428
|
1377 { \
|
|
|
1378 struct prop_block pb; \
|
|
|
1379 if (!prop) \
|
|
|
1380 prop = Dynarr_new (prop_block); \
|
|
|
1381 \
|
|
|
1382 pb.type = PROP_CHAR; \
|
|
|
1383 pb.data.p_char.ch = data->ch; \
|
|
|
1384 pb.data.p_char.cursor_type = data->cursor_type; \
|
|
|
1385 Dynarr_add (prop, pb); \
|
|
|
1386 } \
|
|
|
1387 } while (0)
|
|
|
1388
|
|
|
1389 static prop_block_dynarr *
|
|
|
1390 add_octal_runes (pos_data *data)
|
|
|
1391 {
|
|
819
|
1392 prop_block_dynarr *add_failed, *prop = 0;
|
|
867
|
1393 Ichar orig_char = data->ch;
|
|
647
|
1394 int orig_cursor_type = data->cursor_type;
|
|
428
|
1395
|
|
|
1396 /* Initialize */
|
|
|
1397 add_failed = NULL;
|
|
|
1398
|
|
|
1399 if (data->start_col)
|
|
|
1400 data->start_col--;
|
|
|
1401
|
|
|
1402 if (!data->start_col)
|
|
|
1403 {
|
|
826
|
1404 if (data->byte_start_col_enabled)
|
|
428
|
1405 {
|
|
|
1406 add_failed = add_hscroll_rune (data);
|
|
|
1407 }
|
|
|
1408 else
|
|
|
1409 {
|
|
|
1410 struct glyph_block gb;
|
|
|
1411 struct window *w = XWINDOW (data->window);
|
|
|
1412
|
|
|
1413 gb.extent = Qnil;
|
|
|
1414 gb.glyph = Voctal_escape_glyph;
|
|
|
1415 add_failed =
|
|
|
1416 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1417 GLYPH_CACHEL (w, OCT_ESC_GLYPH_INDEX));
|
|
|
1418 }
|
|
|
1419 }
|
|
|
1420
|
|
|
1421 /* We only propagate information if the glyph was partially
|
|
|
1422 added. */
|
|
|
1423 if (add_failed)
|
|
|
1424 return add_failed;
|
|
|
1425
|
|
|
1426 data->cursor_type = IGNORE_CURSOR;
|
|
|
1427
|
|
|
1428 if (data->ch >= 0x100)
|
|
|
1429 {
|
|
|
1430 /* If the character is an extended Mule character, it could have
|
|
3498
|
1431 up to 21 bits. For the moment, we treat it as a seven-digit
|
|
428
|
1432 octal number. This is not that pretty, but whatever. */
|
|
|
1433 data->ch = (7 & (orig_char >> 18)) + '0';
|
|
|
1434 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1435
|
|
|
1436 data->ch = (7 & (orig_char >> 15)) + '0';
|
|
|
1437 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1438
|
|
|
1439 data->ch = (7 & (orig_char >> 12)) + '0';
|
|
|
1440 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1441
|
|
|
1442 data->ch = (7 & (orig_char >> 9)) + '0';
|
|
|
1443 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1444 }
|
|
|
1445
|
|
|
1446 data->ch = (7 & (orig_char >> 6)) + '0';
|
|
|
1447 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1448
|
|
|
1449 data->ch = (7 & (orig_char >> 3)) + '0';
|
|
|
1450 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1451
|
|
|
1452 data->ch = (7 & orig_char) + '0';
|
|
|
1453 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1454
|
|
|
1455 data->cursor_type = orig_cursor_type;
|
|
819
|
1456 return NULL;
|
|
428
|
1457 }
|
|
|
1458
|
|
|
1459 #undef ADD_NEXT_OCTAL_RUNE_CHAR
|
|
|
1460
|
|
|
1461 /* Add runes representing a control character to a display block. */
|
|
|
1462
|
|
|
1463 static prop_block_dynarr *
|
|
|
1464 add_control_char_runes (pos_data *data, struct buffer *b)
|
|
|
1465 {
|
|
|
1466 if (!NILP (b->ctl_arrow))
|
|
|
1467 {
|
|
|
1468 prop_block_dynarr *prop;
|
|
867
|
1469 Ichar orig_char = data->ch;
|
|
647
|
1470 int old_cursor_type = data->cursor_type;
|
|
428
|
1471
|
|
|
1472 /* Initialize */
|
|
|
1473 prop = NULL;
|
|
|
1474
|
|
|
1475 if (data->start_col)
|
|
|
1476 data->start_col--;
|
|
|
1477
|
|
|
1478 if (!data->start_col)
|
|
|
1479 {
|
|
826
|
1480 if (data->byte_start_col_enabled)
|
|
428
|
1481 {
|
|
|
1482 prop_block_dynarr *retval;
|
|
|
1483
|
|
|
1484 retval = add_hscroll_rune (data);
|
|
|
1485 if (retval)
|
|
|
1486 return retval;
|
|
|
1487 }
|
|
|
1488 else
|
|
|
1489 {
|
|
|
1490 struct glyph_block gb;
|
|
|
1491 struct window *w = XWINDOW (data->window);
|
|
|
1492
|
|
|
1493 gb.extent = Qnil;
|
|
|
1494 gb.glyph = Vcontrol_arrow_glyph;
|
|
|
1495
|
|
|
1496 /* We only propagate information if the glyph was partially
|
|
|
1497 added. */
|
|
|
1498 if (add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1499 GLYPH_CACHEL (w, CONTROL_GLYPH_INDEX)))
|
|
|
1500 return ADD_FAILED;
|
|
|
1501 }
|
|
|
1502 }
|
|
|
1503
|
|
|
1504 if (orig_char == 0177)
|
|
|
1505 data->ch = '?';
|
|
|
1506 else
|
|
|
1507 data->ch = orig_char ^ 0100;
|
|
|
1508 data->cursor_type = IGNORE_CURSOR;
|
|
|
1509
|
|
867
|
1510 if (add_ichar_rune (data))
|
|
428
|
1511 {
|
|
|
1512 struct prop_block pb;
|
|
|
1513 if (!prop)
|
|
|
1514 prop = Dynarr_new (prop_block);
|
|
|
1515
|
|
|
1516 pb.type = PROP_CHAR;
|
|
|
1517 pb.data.p_char.ch = data->ch;
|
|
|
1518 pb.data.p_char.cursor_type = data->cursor_type;
|
|
|
1519 Dynarr_add (prop, pb);
|
|
|
1520 }
|
|
|
1521
|
|
|
1522 data->cursor_type = old_cursor_type;
|
|
|
1523 return prop;
|
|
|
1524 }
|
|
|
1525 else
|
|
|
1526 {
|
|
|
1527 return add_octal_runes (data);
|
|
|
1528 }
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 static prop_block_dynarr *
|
|
|
1532 add_disp_table_entry_runes_1 (pos_data *data, Lisp_Object entry)
|
|
|
1533 {
|
|
|
1534 prop_block_dynarr *prop = NULL;
|
|
|
1535
|
|
|
1536 if (STRINGP (entry))
|
|
|
1537 {
|
|
867
|
1538 prop = add_ibyte_string_runes (data,
|
|
428
|
1539 XSTRING_DATA (entry),
|
|
|
1540 XSTRING_LENGTH (entry),
|
|
793
|
1541 0, 0);
|
|
428
|
1542 }
|
|
|
1543 else if (GLYPHP (entry))
|
|
|
1544 {
|
|
|
1545 if (data->start_col)
|
|
|
1546 data->start_col--;
|
|
|
1547
|
|
826
|
1548 if (!data->start_col && data->byte_start_col_enabled)
|
|
428
|
1549 {
|
|
|
1550 prop = add_hscroll_rune (data);
|
|
|
1551 }
|
|
|
1552 else
|
|
|
1553 {
|
|
|
1554 struct glyph_block gb;
|
|
|
1555
|
|
|
1556 gb.glyph = entry;
|
|
|
1557 gb.extent = Qnil;
|
|
|
1558 prop = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
1559 }
|
|
|
1560 }
|
|
|
1561 else if (CHAR_OR_CHAR_INTP (entry))
|
|
|
1562 {
|
|
|
1563 data->ch = XCHAR_OR_CHAR_INT (entry);
|
|
867
|
1564 prop = add_ichar_rune (data);
|
|
428
|
1565 }
|
|
|
1566 else if (CONSP (entry))
|
|
|
1567 {
|
|
|
1568 if (EQ (XCAR (entry), Qformat)
|
|
|
1569 && CONSP (XCDR (entry))
|
|
|
1570 && STRINGP (XCAR (XCDR (entry))))
|
|
|
1571 {
|
|
|
1572 Lisp_Object format = XCAR (XCDR (entry));
|
|
665
|
1573 Bytebpos len = XSTRING_LENGTH (format);
|
|
867
|
1574 Ibyte *src = XSTRING_DATA (format), *end = src + len;
|
|
2367
|
1575 Ibyte *result = alloca_ibytes (len);
|
|
867
|
1576 Ibyte *dst = result;
|
|
428
|
1577
|
|
|
1578 while (src < end)
|
|
|
1579 {
|
|
867
|
1580 Ichar c = itext_ichar (src);
|
|
|
1581 INC_IBYTEPTR (src);
|
|
428
|
1582 if (c != '%' || src == end)
|
|
867
|
1583 dst += set_itext_ichar (dst, c);
|
|
428
|
1584 else
|
|
|
1585 {
|
|
867
|
1586 c = itext_ichar (src);
|
|
|
1587 INC_IBYTEPTR (src);
|
|
428
|
1588 switch (c)
|
|
|
1589 {
|
|
|
1590 /*case 'x':
|
|
|
1591 dst += long_to_string_base ((char *)dst, data->ch, 16);
|
|
|
1592 break;*/
|
|
|
1593 case '%':
|
|
867
|
1594 dst += set_itext_ichar (dst, '%');
|
|
428
|
1595 break;
|
|
442
|
1596 /* #### unimplemented */
|
|
428
|
1597 }
|
|
|
1598 }
|
|
|
1599 }
|
|
867
|
1600 prop = add_ibyte_string_runes (data, result, dst - result, 0, 0);
|
|
428
|
1601 }
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 /* Else blow it off because someone added a bad entry and we don't
|
|
|
1605 have any safe way of signaling an error. */
|
|
|
1606 return prop;
|
|
|
1607 }
|
|
|
1608
|
|
|
1609 /* Given a display table entry, call the appropriate functions to
|
|
|
1610 display each element of the entry. */
|
|
|
1611
|
|
|
1612 static prop_block_dynarr *
|
|
|
1613 add_disp_table_entry_runes (pos_data *data, Lisp_Object entry)
|
|
|
1614 {
|
|
|
1615 prop_block_dynarr *prop = NULL;
|
|
|
1616 if (VECTORP (entry))
|
|
|
1617 {
|
|
440
|
1618 Lisp_Vector *de = XVECTOR (entry);
|
|
428
|
1619 EMACS_INT len = vector_length (de);
|
|
|
1620 int elt;
|
|
|
1621
|
|
|
1622 for (elt = 0; elt < len; elt++)
|
|
|
1623 {
|
|
|
1624 if (NILP (vector_data (de)[elt]))
|
|
|
1625 continue;
|
|
|
1626 else
|
|
|
1627 prop = add_disp_table_entry_runes_1 (data, vector_data (de)[elt]);
|
|
|
1628 /* Else blow it off because someone added a bad entry and we
|
|
|
1629 don't have any safe way of signaling an error. Hey, this
|
|
|
1630 comment sounds familiar. */
|
|
|
1631
|
|
|
1632 /* #### Still need to add any remaining elements to the
|
|
|
1633 propagation information. */
|
|
|
1634 if (prop)
|
|
|
1635 return prop;
|
|
|
1636 }
|
|
|
1637 }
|
|
|
1638 else
|
|
|
1639 prop = add_disp_table_entry_runes_1 (data, entry);
|
|
|
1640 return prop;
|
|
|
1641 }
|
|
|
1642
|
|
|
1643 /* Add runes which were propagated from the previous line. */
|
|
|
1644
|
|
|
1645 static prop_block_dynarr *
|
|
|
1646 add_propagation_runes (prop_block_dynarr **prop, pos_data *data)
|
|
|
1647 {
|
|
|
1648 /* #### Remember to handle start_col parameter of data when the rest of
|
|
|
1649 this is finished. */
|
|
|
1650 /* #### Chuck -- I've redone this function a bit. It looked like the
|
|
|
1651 case of not all the propagation blocks being added was not handled
|
|
|
1652 well. */
|
|
|
1653 /* #### Chuck -- I also think the double indirection of PROP is kind
|
|
|
1654 of bogus. A cleaner solution is just to check for
|
|
|
1655 Dynarr_length (prop) > 0. */
|
|
|
1656 /* #### This function also doesn't even pay attention to ADD_FAILED!
|
|
|
1657 This is seriously fucked! Seven ####'s in 130 lines -- is that a
|
|
|
1658 record? */
|
|
|
1659 int elt;
|
|
|
1660 prop_block_dynarr *add_failed;
|
|
826
|
1661 Bytebpos byte_old_cursor_charpos = data->byte_cursor_charpos;
|
|
647
|
1662 int old_cursor_type = data->cursor_type;
|
|
428
|
1663
|
|
|
1664 for (elt = 0; elt < Dynarr_length (*prop); elt++)
|
|
|
1665 {
|
|
|
1666 struct prop_block *pb = Dynarr_atp (*prop, elt);
|
|
|
1667
|
|
|
1668 switch (pb->type)
|
|
|
1669 {
|
|
|
1670 case PROP_CHAR:
|
|
|
1671 data->ch = pb->data.p_char.ch;
|
|
826
|
1672 data->byte_cursor_charpos = pb->data.p_char.byte_cursor_charpos;
|
|
428
|
1673 data->cursor_type = pb->data.p_char.cursor_type;
|
|
867
|
1674 add_failed = add_ichar_rune (data);
|
|
428
|
1675
|
|
|
1676 if (add_failed)
|
|
|
1677 goto oops_no_more_space;
|
|
|
1678 break;
|
|
|
1679 case PROP_STRING:
|
|
|
1680 if (pb->data.p_string.str)
|
|
1726
|
1681 xfree (pb->data.p_string.str, Ibyte *);
|
|
428
|
1682 /* #### bogus bogus -- this doesn't do anything!
|
|
867
|
1683 Should probably call add_ibyte_string_runes(),
|
|
428
|
1684 once that function is fixed. */
|
|
|
1685 break;
|
|
|
1686 case PROP_MINIBUF_PROMPT:
|
|
|
1687 {
|
|
|
1688 face_index old_findex = data->findex;
|
|
826
|
1689 Bytebpos byte_old_charpos = data->byte_charpos;
|
|
428
|
1690
|
|
|
1691 data->findex = DEFAULT_INDEX;
|
|
826
|
1692 data->byte_charpos = 0;
|
|
428
|
1693 data->cursor_type = NO_CURSOR;
|
|
|
1694
|
|
|
1695 while (pb->data.p_string.len > 0)
|
|
|
1696 {
|
|
867
|
1697 data->ch = itext_ichar (pb->data.p_string.str);
|
|
|
1698 add_failed = add_ichar_rune (data);
|
|
428
|
1699
|
|
|
1700 if (add_failed)
|
|
|
1701 {
|
|
|
1702 data->findex = old_findex;
|
|
826
|
1703 data->byte_charpos = byte_old_charpos;
|
|
428
|
1704 goto oops_no_more_space;
|
|
|
1705 }
|
|
|
1706 else
|
|
|
1707 {
|
|
|
1708 /* Complicated equivalent of ptr++, len-- */
|
|
867
|
1709 Ibyte *oldpos = pb->data.p_string.str;
|
|
|
1710 INC_IBYTEPTR (pb->data.p_string.str);
|
|
428
|
1711 pb->data.p_string.len -= pb->data.p_string.str - oldpos;
|
|
|
1712 }
|
|
|
1713 }
|
|
|
1714
|
|
|
1715 data->findex = old_findex;
|
|
|
1716 /* ##### FIXME FIXME FIXME -- Upon successful return from
|
|
826
|
1717 this function, data->byte_charpos is automatically incremented.
|
|
428
|
1718 However, we don't want that to happen if we were adding
|
|
|
1719 the minibuffer prompt. */
|
|
|
1720 {
|
|
|
1721 struct buffer *buf =
|
|
|
1722 XBUFFER (WINDOW_BUFFER (XWINDOW (data->window)));
|
|
|
1723 /* #### Chuck fix this shit or I'm gonna scream! */
|
|
826
|
1724 if (byte_old_charpos > BYTE_BUF_BEGV (buf))
|
|
|
1725 data->byte_charpos = prev_bytebpos (buf, byte_old_charpos);
|
|
428
|
1726 else
|
|
|
1727 /* #### is this correct? Does anyone know?
|
|
|
1728 Does anyone care? Is this a cheesy hack or what? */
|
|
826
|
1729 data->byte_charpos = BYTE_BUF_BEGV (buf) - 1;
|
|
428
|
1730 }
|
|
|
1731 }
|
|
|
1732 break;
|
|
|
1733 case PROP_BLANK:
|
|
|
1734 {
|
|
|
1735 /* #### I think it's unnecessary and misleading to preserve
|
|
|
1736 the blank_width, as it implies that the value carries
|
|
|
1737 over from one rune to the next, which is wrong. */
|
|
|
1738 int old_width = data->blank_width;
|
|
|
1739 face_index old_findex = data->findex;
|
|
|
1740
|
|
|
1741 data->findex = pb->data.p_blank.findex;
|
|
|
1742 data->blank_width = pb->data.p_blank.width;
|
|
826
|
1743 data->byte_cursor_charpos = 0;
|
|
428
|
1744 data->cursor_type = IGNORE_CURSOR;
|
|
|
1745
|
|
|
1746 if (data->pixpos + data->blank_width > data->max_pixpos)
|
|
|
1747 data->blank_width = data->max_pixpos - data->pixpos;
|
|
|
1748
|
|
|
1749 /* We pass a bogus value of char_tab_width. It shouldn't
|
|
|
1750 matter because unless something is really screwed up
|
|
|
1751 this call won't cause that arg to be used. */
|
|
|
1752 add_failed = add_blank_rune (data, XWINDOW (data->window), 0);
|
|
|
1753
|
|
|
1754 /* This can happen in the case where we have a tab which
|
|
|
1755 is wider than the window. */
|
|
|
1756 if (data->blank_width != pb->data.p_blank.width)
|
|
|
1757 {
|
|
|
1758 pb->data.p_blank.width -= data->blank_width;
|
|
|
1759 add_failed = ADD_FAILED;
|
|
|
1760 }
|
|
|
1761
|
|
|
1762 data->findex = old_findex;
|
|
|
1763 data->blank_width = old_width;
|
|
|
1764
|
|
|
1765 if (add_failed)
|
|
|
1766 goto oops_no_more_space;
|
|
|
1767 }
|
|
|
1768 break;
|
|
|
1769 default:
|
|
2500
|
1770 ABORT ();
|
|
428
|
1771 }
|
|
|
1772 }
|
|
|
1773
|
|
|
1774 oops_no_more_space:
|
|
|
1775
|
|
826
|
1776 data->byte_cursor_charpos = byte_old_cursor_charpos;
|
|
428
|
1777 data->cursor_type = old_cursor_type;
|
|
|
1778 if (elt < Dynarr_length (*prop))
|
|
|
1779 {
|
|
|
1780 Dynarr_delete_many (*prop, 0, elt);
|
|
|
1781 return *prop;
|
|
|
1782 }
|
|
|
1783 else
|
|
|
1784 {
|
|
|
1785 Dynarr_free (*prop);
|
|
|
1786 return NULL;
|
|
|
1787 }
|
|
|
1788 }
|
|
|
1789
|
|
3025
|
1790 /* Add `text' layout glyphs at position POS_TYPE that are contained to
|
|
428
|
1791 the display block, but add all other types to the appropriate list
|
|
|
1792 of the display line. They will be added later by different
|
|
|
1793 routines. */
|
|
|
1794
|
|
|
1795 static prop_block_dynarr *
|
|
|
1796 add_glyph_rune (pos_data *data, struct glyph_block *gb, int pos_type,
|
|
|
1797 int allow_cursor, struct glyph_cachel *cachel)
|
|
|
1798 {
|
|
|
1799 struct window *w = XWINDOW (data->window);
|
|
|
1800
|
|
440
|
1801 /* If window faces changed, and glyph instance is text, then
|
|
|
1802 glyph sizes might have changed too */
|
|
|
1803 invalidate_glyph_geometry_maybe (gb->glyph, w);
|
|
|
1804
|
|
442
|
1805 /* This makes sure the glyph is in the cachels.
|
|
|
1806
|
|
|
1807 #### We do this to make sure the glyph is in the glyph cachels,
|
|
|
1808 so that the dirty flag can be reset after redisplay has
|
|
|
1809 finished. We should do this some other way, maybe by iterating
|
|
|
1810 over the window cache of subwindows. */
|
|
|
1811 get_glyph_cachel_index (w, gb->glyph);
|
|
|
1812
|
|
428
|
1813 /* A nil extent indicates a special glyph (ex. truncator). */
|
|
|
1814 if (NILP (gb->extent)
|
|
|
1815 || (pos_type == BEGIN_GLYPHS &&
|
|
|
1816 extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT)
|
|
|
1817 || (pos_type == END_GLYPHS &&
|
|
442
|
1818 extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT)
|
|
|
1819 || pos_type == LEFT_GLYPHS || pos_type == RIGHT_GLYPHS)
|
|
428
|
1820 {
|
|
|
1821 struct rune rb;
|
|
|
1822 int width;
|
|
|
1823 int xoffset = 0;
|
|
|
1824 int ascent, descent;
|
|
|
1825 Lisp_Object baseline;
|
|
|
1826 Lisp_Object face;
|
|
442
|
1827 Lisp_Object instance;
|
|
|
1828 face_index findex;
|
|
819
|
1829 prop_block_dynarr *retval = 0;
|
|
428
|
1830
|
|
|
1831 if (cachel)
|
|
|
1832 width = cachel->width;
|
|
|
1833 else
|
|
438
|
1834 width = glyph_width (gb->glyph, data->window);
|
|
428
|
1835
|
|
|
1836 if (!width)
|
|
|
1837 return NULL;
|
|
|
1838
|
|
|
1839 if (data->start_col || data->start_col_xoffset)
|
|
|
1840 {
|
|
|
1841 int glyph_char_width = width / space_width (w);
|
|
|
1842
|
|
|
1843 /* If we still have not fully scrolled horizontally after
|
|
|
1844 taking into account the width of the glyph, subtract its
|
|
|
1845 width and return. */
|
|
|
1846 if (glyph_char_width < data->start_col)
|
|
|
1847 {
|
|
|
1848 data->start_col -= glyph_char_width;
|
|
|
1849 return NULL;
|
|
|
1850 }
|
|
|
1851 else if (glyph_char_width == data->start_col)
|
|
|
1852 width = 0;
|
|
|
1853 else
|
|
|
1854 {
|
|
|
1855 xoffset = space_width (w) * data->start_col;
|
|
|
1856 width -= xoffset;
|
|
|
1857
|
|
|
1858 /* #### Can this happen? */
|
|
|
1859 if (width < 0)
|
|
|
1860 width = 0;
|
|
|
1861 }
|
|
|
1862
|
|
|
1863 data->start_col = 0;
|
|
|
1864 retval = add_hscroll_rune (data);
|
|
|
1865
|
|
|
1866 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1867 if (retval != NULL || !width)
|
|
|
1868 return retval;
|
|
|
1869 }
|
|
|
1870 else
|
|
|
1871 xoffset = 0;
|
|
|
1872
|
|
|
1873 if (data->pixpos + width > data->max_pixpos)
|
|
|
1874 {
|
|
|
1875 /* If this is the first object we are attempting to add to
|
|
819
|
1876 the line then we ignore the horizontal_clip threshold.
|
|
|
1877 Otherwise we will loop until the bottom of the window
|
|
|
1878 continually failing to add this glyph because it is wider
|
|
|
1879 than the window. We could alternatively just completely
|
|
|
1880 ignore the glyph and proceed from there but I think that
|
|
|
1881 this is a better solution.
|
|
|
1882
|
|
|
1883 This does, however, create a different problem in that we
|
|
|
1884 can end up adding the object to every single line, never
|
|
|
1885 getting any further - for instance an extent with a long
|
|
|
1886 start-glyph that covers multitple following
|
|
|
1887 characters. */
|
|
428
|
1888 if (Dynarr_length (data->db->runes)
|
|
|
1889 && data->max_pixpos - data->pixpos < horizontal_clip)
|
|
|
1890 return ADD_FAILED;
|
|
819
|
1891 else {
|
|
|
1892 struct prop_block pb;
|
|
|
1893
|
|
|
1894 /* We need to account for the width of the end-of-line
|
|
|
1895 glyph if there is nothing more in the line to display,
|
|
|
1896 since we will not display it in this instance. It seems
|
|
|
1897 kind of gross doing it here, but otherwise we have to
|
|
|
1898 search the runes in create_text_block(). */
|
|
|
1899 if (data->ch == '\n')
|
|
|
1900 data->max_pixpos += data->end_glyph_width;
|
|
428
|
1901 width = data->max_pixpos - data->pixpos;
|
|
819
|
1902 /* Add the glyph we are displaying, but clipping, to the
|
|
|
1903 propagation data so that we don't try and do it
|
|
|
1904 again. */
|
|
|
1905 retval = Dynarr_new (prop_block);
|
|
|
1906 pb.type = PROP_GLYPH;
|
|
|
1907 pb.data.p_glyph.glyph = gb->glyph;
|
|
|
1908 pb.data.p_glyph.width = width;
|
|
|
1909 Dynarr_add (retval, pb);
|
|
|
1910 }
|
|
428
|
1911 }
|
|
|
1912
|
|
|
1913 if (cachel)
|
|
|
1914 {
|
|
|
1915 ascent = cachel->ascent;
|
|
|
1916 descent = cachel->descent;
|
|
|
1917 }
|
|
|
1918 else
|
|
|
1919 {
|
|
438
|
1920 ascent = glyph_ascent (gb->glyph, data->window);
|
|
|
1921 descent = glyph_descent (gb->glyph, data->window);
|
|
428
|
1922 }
|
|
|
1923
|
|
|
1924 baseline = glyph_baseline (gb->glyph, data->window);
|
|
|
1925
|
|
819
|
1926 rb.object.dglyph.descent = 0; /* Gets reset lower down, if it is known. */
|
|
|
1927
|
|
428
|
1928 if (glyph_contrib_p (gb->glyph, data->window))
|
|
|
1929 {
|
|
|
1930 /* A pixmap that has not had a baseline explicitly set. Its
|
|
|
1931 contribution will be determined later. */
|
|
|
1932 if (NILP (baseline))
|
|
|
1933 {
|
|
|
1934 int height = ascent + descent;
|
|
819
|
1935 data->need_baseline_computation = 1;
|
|
428
|
1936 data->max_pixmap_height = max (data->max_pixmap_height, height);
|
|
|
1937 }
|
|
|
1938
|
|
|
1939 /* A string so determine contribution normally. */
|
|
|
1940 else if (EQ (baseline, Qt))
|
|
|
1941 {
|
|
|
1942 data->new_ascent = max (data->new_ascent, ascent);
|
|
|
1943 data->new_descent = max (data->new_descent, descent);
|
|
|
1944 }
|
|
|
1945
|
|
|
1946 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
1947 contribution here. */
|
|
|
1948 else if (INTP (baseline))
|
|
|
1949 {
|
|
|
1950 int height = ascent + descent;
|
|
|
1951 int pix_ascent, pix_descent;
|
|
|
1952
|
|
|
1953 pix_ascent = height * XINT (baseline) / 100;
|
|
|
1954 pix_descent = height - pix_ascent;
|
|
|
1955
|
|
|
1956 data->new_ascent = max (data->new_ascent, pix_ascent);
|
|
|
1957 data->new_descent = max (data->new_descent, pix_descent);
|
|
819
|
1958 data->max_pixmap_height = max (data->max_pixmap_height, height);
|
|
|
1959
|
|
|
1960 rb.object.dglyph.descent = pix_descent;
|
|
428
|
1961 }
|
|
|
1962
|
|
|
1963 /* Otherwise something is screwed up. */
|
|
|
1964 else
|
|
2500
|
1965 ABORT ();
|
|
428
|
1966 }
|
|
|
1967
|
|
|
1968 face = glyph_face (gb->glyph, data->window);
|
|
|
1969 if (NILP (face))
|
|
442
|
1970 findex = data->findex;
|
|
428
|
1971 else
|
|
442
|
1972 findex = get_builtin_face_cache_index (w, face);
|
|
|
1973
|
|
|
1974 instance = glyph_image_instance (gb->glyph, data->window,
|
|
793
|
1975 ERROR_ME_DEBUG_WARN, 1);
|
|
442
|
1976 if (TEXT_IMAGE_INSTANCEP (instance))
|
|
|
1977 {
|
|
|
1978 Lisp_Object string = XIMAGE_INSTANCE_TEXT_STRING (instance);
|
|
|
1979 face_index orig_findex = data->findex;
|
|
826
|
1980 Bytebpos orig_charpos = data->byte_charpos;
|
|
|
1981 Bytebpos orig_start_col_enabled = data->byte_start_col_enabled;
|
|
442
|
1982
|
|
|
1983 data->findex = findex;
|
|
826
|
1984 data->byte_start_col_enabled = 0;
|
|
442
|
1985 if (!allow_cursor)
|
|
826
|
1986 data->byte_charpos = 0;
|
|
867
|
1987 add_ibyte_string_runes (data, XSTRING_DATA (string),
|
|
793
|
1988 XSTRING_LENGTH (string), 0, 1);
|
|
442
|
1989 data->findex = orig_findex;
|
|
826
|
1990 data->byte_charpos = orig_charpos;
|
|
|
1991 data->byte_start_col_enabled = orig_start_col_enabled;
|
|
819
|
1992 return retval;
|
|
442
|
1993 }
|
|
|
1994
|
|
|
1995 rb.findex = findex;
|
|
428
|
1996 rb.xpos = data->pixpos;
|
|
|
1997 rb.width = width;
|
|
826
|
1998 rb.charpos = 0; /* glyphs are never "at" anywhere */
|
|
|
1999 if (data->byte_endpos)
|
|
428
|
2000 /* #### is this necessary at all? */
|
|
665
|
2001 rb.endpos = bytebpos_to_charbpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
826
|
2002 data->byte_endpos);
|
|
428
|
2003 else
|
|
|
2004 rb.endpos = 0;
|
|
|
2005 rb.type = RUNE_DGLYPH;
|
|
|
2006 rb.object.dglyph.glyph = gb->glyph;
|
|
|
2007 rb.object.dglyph.extent = gb->extent;
|
|
|
2008 rb.object.dglyph.xoffset = xoffset;
|
|
819
|
2009 rb.object.dglyph.ascent = ascent;
|
|
|
2010 rb.object.dglyph.yoffset = 0; /* Until we know better, assume that it has
|
|
|
2011 a normal (textual) baseline. */
|
|
428
|
2012
|
|
|
2013 if (allow_cursor)
|
|
|
2014 {
|
|
826
|
2015 rb.charpos = bytebpos_to_charbpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
2016 data->byte_charpos);
|
|
428
|
2017
|
|
|
2018 if (data->cursor_type == CURSOR_ON)
|
|
|
2019 {
|
|
826
|
2020 if (data->byte_charpos == data->byte_cursor_charpos)
|
|
428
|
2021 {
|
|
|
2022 rb.cursor_type = CURSOR_ON;
|
|
|
2023 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
2024 }
|
|
|
2025 else
|
|
|
2026 rb.cursor_type = CURSOR_OFF;
|
|
|
2027 }
|
|
|
2028 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
2029 {
|
|
|
2030 rb.cursor_type = CURSOR_ON;
|
|
|
2031 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
2032 data->cursor_type = NO_CURSOR;
|
|
|
2033 }
|
|
|
2034 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
2035 rb.cursor_type = IGNORE_CURSOR;
|
|
|
2036 else if (data->cursor_type == NO_CURSOR)
|
|
|
2037 rb.cursor_type = NO_CURSOR;
|
|
|
2038 else
|
|
|
2039 rb.cursor_type = CURSOR_OFF;
|
|
|
2040 }
|
|
|
2041 else
|
|
|
2042 rb.cursor_type = CURSOR_OFF;
|
|
|
2043
|
|
|
2044 Dynarr_add (data->db->runes, rb);
|
|
|
2045 data->pixpos += width;
|
|
|
2046
|
|
819
|
2047 return retval;
|
|
428
|
2048 }
|
|
|
2049 else
|
|
|
2050 {
|
|
|
2051 if (!NILP (glyph_face (gb->glyph, data->window)))
|
|
|
2052 gb->findex =
|
|
|
2053 get_builtin_face_cache_index (w, glyph_face (gb->glyph,
|
|
|
2054 data->window));
|
|
|
2055 else
|
|
|
2056 gb->findex = data->findex;
|
|
|
2057
|
|
|
2058 if (pos_type == BEGIN_GLYPHS)
|
|
|
2059 {
|
|
|
2060 if (!data->dl->left_glyphs)
|
|
|
2061 data->dl->left_glyphs = Dynarr_new (glyph_block);
|
|
|
2062 Dynarr_add (data->dl->left_glyphs, *gb);
|
|
|
2063 return NULL;
|
|
|
2064 }
|
|
|
2065 else if (pos_type == END_GLYPHS)
|
|
|
2066 {
|
|
|
2067 if (!data->dl->right_glyphs)
|
|
|
2068 data->dl->right_glyphs = Dynarr_new (glyph_block);
|
|
|
2069 Dynarr_add (data->dl->right_glyphs, *gb);
|
|
|
2070 return NULL;
|
|
|
2071 }
|
|
|
2072 else
|
|
2500
|
2073 ABORT (); /* there are no unknown types */
|
|
428
|
2074 }
|
|
|
2075
|
|
819
|
2076 return NULL;
|
|
428
|
2077 }
|
|
|
2078
|
|
|
2079 /* Add all glyphs at position POS_TYPE that are contained in the given
|
|
|
2080 data. */
|
|
|
2081
|
|
|
2082 static prop_block_dynarr *
|
|
|
2083 add_glyph_runes (pos_data *data, int pos_type)
|
|
|
2084 {
|
|
|
2085 /* #### This still needs to handle the start_col parameter. Duh, Chuck,
|
|
|
2086 why didn't you just modify add_glyph_rune in the first place? */
|
|
|
2087 int elt;
|
|
|
2088 glyph_block_dynarr *glyph_arr = (pos_type == BEGIN_GLYPHS
|
|
|
2089 ? data->ef->begin_glyphs
|
|
|
2090 : data->ef->end_glyphs);
|
|
|
2091 prop_block_dynarr *prop;
|
|
|
2092
|
|
|
2093 for (elt = 0; elt < Dynarr_length (glyph_arr); elt++)
|
|
|
2094 {
|
|
|
2095 prop = add_glyph_rune (data, Dynarr_atp (glyph_arr, elt), pos_type, 0,
|
|
|
2096 0);
|
|
|
2097
|
|
|
2098 if (prop)
|
|
|
2099 {
|
|
|
2100 /* #### Add some propagation information. */
|
|
|
2101 return prop;
|
|
|
2102 }
|
|
|
2103 }
|
|
|
2104
|
|
|
2105 Dynarr_reset (glyph_arr);
|
|
|
2106
|
|
|
2107 return NULL;
|
|
|
2108 }
|
|
|
2109
|
|
|
2110 /* Given a position for a buffer in a window, ensure that the given
|
|
|
2111 display line DL accurately represents the text on a line starting
|
|
|
2112 at the given position.
|
|
|
2113
|
|
826
|
2114 NOTE NOTE NOTE NOTE: This function works with and returns Bytebpos's.
|
|
428
|
2115 You must do appropriate conversion. */
|
|
|
2116
|
|
665
|
2117 static Bytebpos
|
|
428
|
2118 create_text_block (struct window *w, struct display_line *dl,
|
|
826
|
2119 Bytebpos byte_start_pos, prop_block_dynarr **prop,
|
|
428
|
2120 int type)
|
|
|
2121 {
|
|
|
2122 struct frame *f = XFRAME (w->frame);
|
|
|
2123 struct buffer *b = XBUFFER (w->buffer);
|
|
|
2124 struct device *d = XDEVICE (f->device);
|
|
|
2125
|
|
|
2126 pos_data data;
|
|
|
2127
|
|
|
2128 /* Don't display anything in the minibuffer if this window is not on
|
|
|
2129 a selected frame. We consider all other windows to be active
|
|
|
2130 minibuffers as it simplifies the coding. */
|
|
|
2131 int active_minibuffer = (!MINI_WINDOW_P (w) ||
|
|
|
2132 (f == device_selected_frame (d)) ||
|
|
|
2133 is_surrogate_for_selected_frame (f));
|
|
|
2134
|
|
|
2135 int truncate_win = window_truncation_on (w);
|
|
|
2136
|
|
|
2137 /* If the buffer's value of selective_display is an integer then
|
|
|
2138 only lines that start with less than selective_display columns of
|
|
|
2139 space will be displayed. If selective_display is t then all text
|
|
|
2140 after a ^M is invisible. */
|
|
|
2141 int selective = (INTP (b->selective_display)
|
|
|
2142 ? XINT (b->selective_display)
|
|
434
|
2143 : (!NILP (b->selective_display) ? -1 : 0));
|
|
428
|
2144
|
|
|
2145 /* The variable ctl-arrow allows the user to specify what characters
|
|
|
2146 can actually be displayed and which octal should be used for.
|
|
|
2147 #### This variable should probably have some rethought done to
|
|
|
2148 it.
|
|
|
2149
|
|
2367
|
2150 See also
|
|
|
2151
|
|
|
2152 (Info-goto-node "(internals)Future Work -- Display Tables")
|
|
|
2153
|
|
|
2154 */
|
|
867
|
2155 Ichar printable_min = (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
428
|
2156 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
2157 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
2158 ? 255 : 160));
|
|
|
2159
|
|
|
2160 Lisp_Object face_dt, window_dt;
|
|
|
2161
|
|
|
2162 /* The text display block for this display line. */
|
|
|
2163 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
2164
|
|
|
2165 /* The first time through the main loop we need to force the glyph
|
|
|
2166 data to be updated. */
|
|
|
2167 int initial = 1;
|
|
|
2168
|
|
|
2169 /* Apparently the new extent_fragment_update returns an end position
|
|
|
2170 equal to the position passed in if there are no more runs to be
|
|
|
2171 displayed. */
|
|
|
2172 int no_more_frags = 0;
|
|
|
2173
|
|
|
2174 Lisp_Object synch_minibuffers_value =
|
|
|
2175 symbol_value_in_buffer (Qsynchronize_minibuffers, w->buffer);
|
|
|
2176
|
|
|
2177 dl->used_prop_data = 0;
|
|
|
2178 dl->num_chars = 0;
|
|
442
|
2179 dl->line_continuation = 0;
|
|
428
|
2180
|
|
|
2181 xzero (data);
|
|
|
2182 data.ef = extent_fragment_new (w->buffer, f);
|
|
|
2183
|
|
|
2184 /* These values are used by all of the rune addition routines. We add
|
|
|
2185 them to this structure for ease of passing. */
|
|
|
2186 data.d = d;
|
|
793
|
2187 data.window = wrap_window (w);
|
|
428
|
2188 data.string = Qnil;
|
|
|
2189 data.db = db;
|
|
|
2190 data.dl = dl;
|
|
|
2191
|
|
826
|
2192 data.byte_charpos = byte_start_pos;
|
|
428
|
2193 data.pixpos = dl->bounds.left_in;
|
|
|
2194 data.last_charset = Qunbound;
|
|
|
2195 data.last_findex = DEFAULT_INDEX;
|
|
|
2196 data.result_str = Qnil;
|
|
|
2197
|
|
|
2198 /* Set the right boundary adjusting it to take into account any end
|
|
|
2199 glyph. Save the width of the end glyph for later use. */
|
|
|
2200 data.max_pixpos = dl->bounds.right_in;
|
|
|
2201 if (truncate_win)
|
|
819
|
2202 data.end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
|
|
428
|
2203 else
|
|
819
|
2204 data.end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
|
|
|
2205 data.max_pixpos -= data.end_glyph_width;
|
|
428
|
2206
|
|
|
2207 if (cursor_in_echo_area && MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
2208 {
|
|
826
|
2209 data.byte_cursor_charpos = BYTE_BUF_ZV (b);
|
|
428
|
2210 data.cursor_type = CURSOR_ON;
|
|
|
2211 }
|
|
|
2212 else if (MINI_WINDOW_P (w) && !active_minibuffer)
|
|
|
2213 data.cursor_type = NO_CURSOR;
|
|
|
2214 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)) &&
|
|
|
2215 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
2216 d == XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d))))&&
|
|
|
2217 f == XFRAME(DEVICE_SELECTED_FRAME(d)))
|
|
|
2218 {
|
|
826
|
2219 data.byte_cursor_charpos = BYTE_BUF_PT (b);
|
|
428
|
2220 data.cursor_type = CURSOR_ON;
|
|
|
2221 }
|
|
|
2222 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)))
|
|
|
2223 {
|
|
826
|
2224 data.byte_cursor_charpos = byte_marker_position (w->pointm[type]);
|
|
428
|
2225 data.cursor_type = CURSOR_ON;
|
|
|
2226 }
|
|
|
2227 else
|
|
|
2228 data.cursor_type = NO_CURSOR;
|
|
|
2229 data.cursor_x = -1;
|
|
|
2230
|
|
|
2231 data.start_col = w->hscroll;
|
|
|
2232 data.start_col_xoffset = w->left_xoffset;
|
|
826
|
2233 data.byte_start_col_enabled = (w->hscroll ? byte_start_pos : 0);
|
|
428
|
2234 data.hscroll_glyph_width_adjust = 0;
|
|
|
2235
|
|
|
2236 /* We regenerate the line from the very beginning. */
|
|
|
2237 Dynarr_reset (db->runes);
|
|
|
2238
|
|
|
2239 /* Why is this less than or equal and not just less than? If the
|
|
|
2240 starting position is already equal to the maximum we can't add
|
|
|
2241 anything else, right? Wrong. We might still have a newline to
|
|
|
2242 add. A newline can use the room allocated for an end glyph since
|
|
|
2243 if we add it we know we aren't going to be adding any end
|
|
|
2244 glyph. */
|
|
|
2245
|
|
|
2246 /* #### Chuck -- I think this condition should be while (1).
|
|
|
2247 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
2248 and the begin-glyph ends exactly at the end of the window, the
|
|
|
2249 end-glyph and text might not be displayed. while (1) ensures
|
|
|
2250 that the loop terminates only when either (a) there is
|
|
|
2251 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
2252
|
|
|
2253 #### Also I think you need to ensure that the operation
|
|
|
2254 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
2255 can't get interrupted in the middle. If you run off the end
|
|
|
2256 of the line during that operation, then you keep accumulating
|
|
|
2257 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
2258 there's a begin glyph at a particular position and attempting
|
|
|
2259 to display that glyph results in window-end being hit and
|
|
|
2260 propagation data being generated, then the character at that
|
|
|
2261 position won't be displayed.
|
|
|
2262
|
|
|
2263 #### See also the comment after the end of this loop, below.
|
|
|
2264 */
|
|
|
2265 while (data.pixpos <= data.max_pixpos
|
|
|
2266 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
2267 {
|
|
|
2268 /* #### This check probably should not be necessary. */
|
|
826
|
2269 if (data.byte_charpos > BYTE_BUF_ZV (b))
|
|
428
|
2270 {
|
|
|
2271 /* #### urk! More of this lossage! */
|
|
826
|
2272 data.byte_charpos--;
|
|
428
|
2273 goto done;
|
|
|
2274 }
|
|
|
2275
|
|
|
2276 /* If selective display was an integer and we aren't working on
|
|
|
2277 a continuation line then find the next line we are actually
|
|
|
2278 supposed to display. */
|
|
|
2279 if (selective > 0
|
|
826
|
2280 && (data.byte_charpos == BYTE_BUF_BEGV (b)
|
|
|
2281 || BUF_FETCH_CHAR (b, prev_bytebpos (b, data.byte_charpos)) == '\n'))
|
|
|
2282 {
|
|
|
2283 while (byte_spaces_at_point (b, data.byte_charpos) >= selective)
|
|
428
|
2284 {
|
|
826
|
2285 data.byte_charpos =
|
|
|
2286 byte_find_next_newline_no_quit (b, data.byte_charpos, 1);
|
|
|
2287 if (data.byte_charpos >= BYTE_BUF_ZV (b))
|
|
428
|
2288 {
|
|
826
|
2289 data.byte_charpos = BYTE_BUF_ZV (b);
|
|
428
|
2290 goto done;
|
|
|
2291 }
|
|
|
2292 }
|
|
|
2293 }
|
|
|
2294
|
|
|
2295 /* Check for face changes. */
|
|
826
|
2296 if (initial || (!no_more_frags && data.byte_charpos == data.ef->end))
|
|
428
|
2297 {
|
|
819
|
2298 Lisp_Object last_glyph = Qnil;
|
|
|
2299
|
|
|
2300 /* Deal with glyphs that we have already displayed. The
|
|
|
2301 theory is that if we end up with a PROP_GLYPH in the
|
|
|
2302 propagation data then we are clipping the glyph and there
|
|
|
2303 can be no propagation data before that point. The theory
|
|
|
2304 works because we always recalculate the extent-fragments
|
|
|
2305 for propagated data, we never actually propagate the
|
|
|
2306 fragments that still need to be displayed. */
|
|
|
2307 if (*prop && Dynarr_atp (*prop, 0)->type == PROP_GLYPH)
|
|
|
2308 {
|
|
|
2309 last_glyph = Dynarr_atp (*prop, 0)->data.p_glyph.glyph;
|
|
|
2310 Dynarr_free (*prop);
|
|
|
2311 *prop = 0;
|
|
|
2312 }
|
|
428
|
2313 /* Now compute the face and begin/end-glyph information. */
|
|
|
2314 data.findex =
|
|
665
|
2315 /* Remember that the extent-fragment routines deal in Bytebpos's. */
|
|
826
|
2316 extent_fragment_update (w, data.ef, data.byte_charpos, last_glyph);
|
|
428
|
2317
|
|
|
2318 get_display_tables (w, data.findex, &face_dt, &window_dt);
|
|
|
2319
|
|
826
|
2320 if (data.byte_charpos == data.ef->end)
|
|
428
|
2321 no_more_frags = 1;
|
|
|
2322 }
|
|
|
2323 initial = 0;
|
|
|
2324
|
|
|
2325 /* Determine what is next to be displayed. We first handle any
|
|
665
|
2326 glyphs returned by glyphs_at_charbpos. If there are no glyphs to
|
|
428
|
2327 display then we determine what to do based on the character at the
|
|
|
2328 current buffer position. */
|
|
|
2329
|
|
|
2330 /* If the current position is covered by an invisible extent, do
|
|
|
2331 nothing (except maybe add some ellipses).
|
|
|
2332
|
|
|
2333 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
2334 invisible extent should be investigated further. This is
|
|
|
2335 fairly low priority though. */
|
|
|
2336 if (data.ef->invisible)
|
|
|
2337 {
|
|
|
2338 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
2339 really know what I'm doing. */
|
|
|
2340 if (*prop)
|
|
|
2341 {
|
|
|
2342 Dynarr_free (*prop);
|
|
|
2343 *prop = 0;
|
|
|
2344 }
|
|
|
2345
|
|
|
2346 /* The extent fragment code only sets this when we should
|
|
|
2347 really display the ellipses. It makes sure the ellipses
|
|
|
2348 don't get displayed more than once in a row. */
|
|
|
2349 if (data.ef->invisible_ellipses)
|
|
|
2350 {
|
|
|
2351 struct glyph_block gb;
|
|
|
2352
|
|
|
2353 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
2354 data.ef->invisible_ellipses = 0;
|
|
|
2355 gb.extent = Qnil;
|
|
|
2356 gb.glyph = Vinvisible_text_glyph;
|
|
|
2357 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2358 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2359 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
2360 is to display a newline (for compatibility with
|
|
|
2361 selective-display-ellipses)? Maybe that's too
|
|
|
2362 abstruse. */
|
|
|
2363 if (*prop)
|
|
|
2364 goto done;
|
|
|
2365 }
|
|
|
2366
|
|
|
2367 /* If point is in an invisible region we place it on the
|
|
|
2368 next visible character. */
|
|
|
2369 if (data.cursor_type == CURSOR_ON
|
|
826
|
2370 && data.byte_charpos == data.byte_cursor_charpos)
|
|
428
|
2371 {
|
|
|
2372 data.cursor_type = NEXT_CURSOR;
|
|
|
2373 }
|
|
|
2374
|
|
|
2375 /* #### What if we we're dealing with a display table? */
|
|
|
2376 if (data.start_col)
|
|
|
2377 data.start_col--;
|
|
|
2378
|
|
826
|
2379 if (data.byte_charpos == BYTE_BUF_ZV (b))
|
|
428
|
2380 goto done;
|
|
|
2381 else
|
|
826
|
2382 INC_BYTEBPOS (b, data.byte_charpos);
|
|
428
|
2383 }
|
|
|
2384
|
|
|
2385 /* If there is propagation data, then it represents the current
|
|
819
|
2386 buffer position being displayed. Add them and advance the
|
|
|
2387 position counter. This might also add the minibuffer
|
|
|
2388 prompt. */
|
|
428
|
2389 else if (*prop)
|
|
|
2390 {
|
|
|
2391 dl->used_prop_data = 1;
|
|
|
2392 *prop = add_propagation_runes (prop, &data);
|
|
|
2393
|
|
|
2394 if (*prop)
|
|
|
2395 goto done; /* gee, a really narrow window */
|
|
826
|
2396 else if (data.byte_charpos == BYTE_BUF_ZV (b))
|
|
428
|
2397 goto done;
|
|
826
|
2398 else if (data.byte_charpos < BYTE_BUF_BEGV (b))
|
|
428
|
2399 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
826
|
2400 data.byte_charpos = BYTE_BUF_BEGV (b);
|
|
428
|
2401 else
|
|
826
|
2402 INC_BYTEBPOS (b, data.byte_charpos);
|
|
428
|
2403 }
|
|
|
2404
|
|
|
2405 /* If there are end glyphs, add them to the line. These are
|
|
|
2406 the end glyphs for the previous run of text. We add them
|
|
|
2407 here rather than doing them at the end of handling the
|
|
|
2408 previous run so that glyphs at the beginning and end of
|
|
|
2409 a line are handled correctly. */
|
|
819
|
2410 else if (Dynarr_length (data.ef->end_glyphs) > 0
|
|
|
2411 || Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
2412 {
|
|
|
2413 glyph_block_dynarr* tmpglyphs = 0;
|
|
|
2414 /* #### I think this is safe, but could be wrong. */
|
|
826
|
2415 data.ch = BYTE_BUF_FETCH_CHAR (b, data.byte_charpos);
|
|
819
|
2416
|
|
|
2417 if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
2418 {
|
|
|
2419 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
|
2420 tmpglyphs = data.ef->end_glyphs;
|
|
|
2421 }
|
|
|
2422
|
|
|
2423 /* If there are begin glyphs, add them to the line. */
|
|
|
2424 if (!*prop && Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
2425 {
|
|
|
2426 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
|
2427 tmpglyphs = data.ef->begin_glyphs;
|
|
|
2428 }
|
|
|
2429
|
|
|
2430 if (*prop)
|
|
|
2431 {
|
|
|
2432 /* If we just clipped a glyph and we are at the end of a
|
|
|
2433 line and there are more glyphs to display then do
|
|
|
2434 appropriate processing to not get a continuation
|
|
|
2435 glyph. */
|
|
|
2436 if (*prop != ADD_FAILED
|
|
|
2437 && Dynarr_atp (*prop, 0)->type == PROP_GLYPH
|
|
|
2438 && data.ch == '\n')
|
|
|
2439 {
|
|
|
2440 /* If there are no more glyphs then do the normal
|
|
|
2441 processing.
|
|
|
2442
|
|
|
2443 #### This doesn't actually work if the same glyph is
|
|
|
2444 present more than once in the block. To solve
|
|
|
2445 this we would have to carry the index around
|
|
|
2446 which might be problematic since the fragment is
|
|
|
2447 recalculated for each line. */
|
|
|
2448 if (EQ (Dynarr_end (tmpglyphs)->glyph,
|
|
|
2449 Dynarr_atp (*prop, 0)->data.p_glyph.glyph))
|
|
|
2450 {
|
|
|
2451 Dynarr_free (*prop);
|
|
|
2452 *prop = 0;
|
|
|
2453 }
|
|
|
2454 else {
|
|
|
2455 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
867
|
2456 add_ichar_rune (&data); /* discard prop data. */
|
|
819
|
2457 goto done;
|
|
|
2458 }
|
|
|
2459 }
|
|
|
2460 else
|
|
|
2461 goto done;
|
|
|
2462 }
|
|
428
|
2463 }
|
|
|
2464
|
|
|
2465 /* If at end-of-buffer, we've already processed begin and
|
|
|
2466 end-glyphs at this point and there's no text to process,
|
|
|
2467 so we're done. */
|
|
826
|
2468 else if (data.byte_charpos == BYTE_BUF_ZV (b))
|
|
428
|
2469 goto done;
|
|
|
2470
|
|
|
2471 else
|
|
|
2472 {
|
|
|
2473 Lisp_Object entry = Qnil;
|
|
|
2474 /* Get the character at the current buffer position. */
|
|
826
|
2475 data.ch = BYTE_BUF_FETCH_CHAR (b, data.byte_charpos);
|
|
428
|
2476 if (!NILP (face_dt) || !NILP (window_dt))
|
|
|
2477 entry = display_table_entry (data.ch, face_dt, window_dt);
|
|
|
2478
|
|
|
2479 /* If there is a display table entry for it, hand it off to
|
|
|
2480 add_disp_table_entry_runes and let it worry about it. */
|
|
|
2481 if (!NILP (entry) && !EQ (entry, make_char (data.ch)))
|
|
|
2482 {
|
|
|
2483 *prop = add_disp_table_entry_runes (&data, entry);
|
|
|
2484
|
|
|
2485 if (*prop)
|
|
|
2486 goto done;
|
|
|
2487 }
|
|
|
2488
|
|
|
2489 /* Check if we have hit a newline character. If so, add a marker
|
|
|
2490 to the line and end this loop. */
|
|
|
2491 else if (data.ch == '\n')
|
|
|
2492 {
|
|
|
2493 /* We aren't going to be adding an end glyph so give its
|
|
|
2494 space back in order to make sure that the cursor can
|
|
|
2495 fit. */
|
|
819
|
2496 data.max_pixpos += data.end_glyph_width;
|
|
428
|
2497
|
|
|
2498 if (selective > 0
|
|
826
|
2499 && (byte_spaces_at_point
|
|
|
2500 (b, next_bytebpos (b, data.byte_charpos))
|
|
428
|
2501 >= selective))
|
|
|
2502 {
|
|
|
2503 if (!NILP (b->selective_display_ellipses))
|
|
|
2504 {
|
|
|
2505 struct glyph_block gb;
|
|
|
2506
|
|
|
2507 gb.extent = Qnil;
|
|
|
2508 gb.glyph = Vinvisible_text_glyph;
|
|
|
2509 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2510 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2511 }
|
|
|
2512 else
|
|
|
2513 {
|
|
|
2514 /* Cheesy, cheesy, cheesy. We mark the end of the
|
|
|
2515 line with a special "character rune" whose width
|
|
|
2516 is the EOL cursor width and whose character is
|
|
|
2517 the non-printing character '\n'. */
|
|
|
2518 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
867
|
2519 *prop = add_ichar_rune (&data);
|
|
428
|
2520 }
|
|
|
2521
|
|
826
|
2522 /* We need to set data.byte_charpos to the start of the
|
|
428
|
2523 next visible region in order to make this line
|
|
|
2524 appear to contain all of the invisible area.
|
|
|
2525 Otherwise, the line cache won't work
|
|
|
2526 correctly. */
|
|
826
|
2527 INC_BYTEBPOS (b, data.byte_charpos);
|
|
|
2528 while (byte_spaces_at_point (b, data.byte_charpos) >= selective)
|
|
428
|
2529 {
|
|
826
|
2530 data.byte_charpos =
|
|
|
2531 byte_find_next_newline_no_quit (b, data.byte_charpos, 1);
|
|
|
2532 if (data.byte_charpos >= BYTE_BUF_ZV (b))
|
|
428
|
2533 {
|
|
826
|
2534 data.byte_charpos = BYTE_BUF_ZV (b);
|
|
428
|
2535 break;
|
|
|
2536 }
|
|
|
2537 }
|
|
826
|
2538 if (BYTE_BUF_FETCH_CHAR
|
|
|
2539 (b, prev_bytebpos (b, data.byte_charpos)) == '\n')
|
|
|
2540 DEC_BYTEBPOS (b, data.byte_charpos);
|
|
428
|
2541 }
|
|
|
2542 else
|
|
|
2543 {
|
|
|
2544 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
867
|
2545 *prop = add_ichar_rune (&data);
|
|
428
|
2546 }
|
|
|
2547
|
|
|
2548 goto done;
|
|
|
2549 }
|
|
|
2550
|
|
|
2551 /* If the current character is ^M, and selective display is
|
|
|
2552 enabled, then add the invisible-text-glyph if
|
|
|
2553 selective-display-ellipses is set. In any case, this
|
|
|
2554 line is done. */
|
|
|
2555 else if (data.ch == (('M' & 037)) && selective == -1)
|
|
|
2556 {
|
|
826
|
2557 Bytebpos byte_next_charpos;
|
|
428
|
2558
|
|
|
2559 /* Find the buffer position at the end of the line. */
|
|
826
|
2560 byte_next_charpos =
|
|
|
2561 byte_find_next_newline_no_quit (b, data.byte_charpos, 1);
|
|
|
2562 if (BYTE_BUF_FETCH_CHAR (b, prev_bytebpos (b, byte_next_charpos))
|
|
428
|
2563 == '\n')
|
|
826
|
2564 DEC_BYTEBPOS (b, byte_next_charpos);
|
|
428
|
2565
|
|
|
2566 /* If the cursor is somewhere in the elided text make
|
|
|
2567 sure that the cursor gets drawn appropriately. */
|
|
|
2568 if (data.cursor_type == CURSOR_ON
|
|
826
|
2569 && (data.byte_cursor_charpos >= data.byte_charpos &&
|
|
|
2570 data.byte_cursor_charpos < byte_next_charpos))
|
|
428
|
2571 {
|
|
|
2572 data.cursor_type = NEXT_CURSOR;
|
|
|
2573 }
|
|
|
2574
|
|
|
2575 /* We won't be adding a truncation or continuation glyph
|
|
|
2576 so give up the room allocated for them. */
|
|
819
|
2577 data.max_pixpos += data.end_glyph_width;
|
|
428
|
2578
|
|
|
2579 if (!NILP (b->selective_display_ellipses))
|
|
|
2580 {
|
|
|
2581 /* We don't propagate anything from the invisible
|
|
|
2582 text glyph if it fails to fit. This is
|
|
|
2583 intentional. */
|
|
|
2584 struct glyph_block gb;
|
|
|
2585
|
|
|
2586 gb.extent = Qnil;
|
|
|
2587 gb.glyph = Vinvisible_text_glyph;
|
|
|
2588 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1,
|
|
|
2589 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2590 }
|
|
|
2591
|
|
|
2592 /* Set the buffer position to the end of the line. We
|
|
|
2593 need to do this before potentially adding a newline
|
|
|
2594 so that the cursor flag will get set correctly (if
|
|
|
2595 needed). */
|
|
826
|
2596 data.byte_charpos = byte_next_charpos;
|
|
428
|
2597
|
|
|
2598 if (NILP (b->selective_display_ellipses)
|
|
826
|
2599 || data.byte_cursor_charpos == byte_next_charpos)
|
|
428
|
2600 {
|
|
|
2601 /* We have to at least add a newline character so
|
|
|
2602 that the cursor shows up properly. */
|
|
|
2603 data.ch = '\n';
|
|
|
2604 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2605 data.findex = DEFAULT_INDEX;
|
|
|
2606 data.start_col = 0;
|
|
|
2607 data.start_col_xoffset = 0;
|
|
826
|
2608 data.byte_start_col_enabled = 0;
|
|
428
|
2609
|
|
867
|
2610 add_ichar_rune (&data);
|
|
428
|
2611 }
|
|
|
2612
|
|
|
2613 /* This had better be a newline but doing it this way
|
|
|
2614 we'll see obvious incorrect results if it isn't. No
|
|
|
2615 need to abort here. */
|
|
826
|
2616 data.ch = BYTE_BUF_FETCH_CHAR (b, data.byte_charpos);
|
|
428
|
2617
|
|
|
2618 goto done;
|
|
|
2619 }
|
|
|
2620
|
|
|
2621 /* If the current character is considered to be printable, then
|
|
|
2622 just add it. */
|
|
|
2623 else if (data.ch >= printable_min)
|
|
|
2624 {
|
|
867
|
2625 *prop = add_ichar_rune (&data);
|
|
428
|
2626 if (*prop)
|
|
|
2627 goto done;
|
|
|
2628 }
|
|
|
2629
|
|
|
2630 /* If the current character is a tab, determine the next tab
|
|
|
2631 starting position and add a blank rune which extends from the
|
|
|
2632 current pixel position to that starting position. */
|
|
|
2633 else if (data.ch == '\t')
|
|
|
2634 {
|
|
|
2635 int tab_start_pixpos = data.pixpos;
|
|
|
2636 int next_tab_start;
|
|
|
2637 int char_tab_width;
|
|
|
2638 int prop_width = 0;
|
|
|
2639
|
|
|
2640 if (data.start_col > 1)
|
|
434
|
2641 tab_start_pixpos -= (space_width (w) * (data.start_col - 1))
|
|
428
|
2642 + data.start_col_xoffset;
|
|
|
2643
|
|
|
2644 next_tab_start =
|
|
|
2645 next_tab_position (w, tab_start_pixpos,
|
|
|
2646 dl->bounds.left_in +
|
|
|
2647 data.hscroll_glyph_width_adjust);
|
|
|
2648 if (next_tab_start > data.max_pixpos)
|
|
|
2649 {
|
|
|
2650 prop_width = next_tab_start - data.max_pixpos;
|
|
|
2651 next_tab_start = data.max_pixpos;
|
|
|
2652 }
|
|
|
2653 data.blank_width = next_tab_start - data.pixpos;
|
|
|
2654 char_tab_width =
|
|
|
2655 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
2656
|
|
|
2657 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
2658
|
|
|
2659 /* add_blank_rune is only supposed to be called with
|
|
|
2660 sizes guaranteed to fit in the available space. */
|
|
|
2661 assert (!(*prop));
|
|
|
2662
|
|
|
2663 if (prop_width)
|
|
|
2664 {
|
|
|
2665 struct prop_block pb;
|
|
|
2666 *prop = Dynarr_new (prop_block);
|
|
|
2667
|
|
|
2668 pb.type = PROP_BLANK;
|
|
|
2669 pb.data.p_blank.width = prop_width;
|
|
|
2670 pb.data.p_blank.findex = data.findex;
|
|
|
2671 Dynarr_add (*prop, pb);
|
|
|
2672
|
|
|
2673 goto done;
|
|
|
2674 }
|
|
|
2675 }
|
|
|
2676
|
|
|
2677 /* If character is a control character, pass it off to
|
|
|
2678 add_control_char_runes.
|
|
|
2679
|
|
|
2680 The is_*() routines have undefined results on
|
|
|
2681 arguments outside of the range [-1, 255]. (This
|
|
|
2682 often bites people who carelessly use `char' instead
|
|
|
2683 of `unsigned char'.)
|
|
|
2684 */
|
|
867
|
2685 else if (data.ch < 0x100 && iscntrl ((Ibyte) data.ch))
|
|
428
|
2686 {
|
|
|
2687 *prop = add_control_char_runes (&data, b);
|
|
|
2688
|
|
|
2689 if (*prop)
|
|
|
2690 goto done;
|
|
|
2691 }
|
|
|
2692
|
|
|
2693 /* If the character is above the ASCII range and we have not
|
|
|
2694 already handled it, then print it as an octal number. */
|
|
|
2695 else if (data.ch >= 0200)
|
|
|
2696 {
|
|
|
2697 *prop = add_octal_runes (&data);
|
|
|
2698
|
|
|
2699 if (*prop)
|
|
|
2700 goto done;
|
|
|
2701 }
|
|
|
2702
|
|
|
2703 /* Assume the current character is considered to be printable,
|
|
|
2704 then just add it. */
|
|
|
2705 else
|
|
|
2706 {
|
|
867
|
2707 *prop = add_ichar_rune (&data);
|
|
428
|
2708 if (*prop)
|
|
|
2709 goto done;
|
|
|
2710 }
|
|
|
2711
|
|
826
|
2712 INC_BYTEBPOS (b, data.byte_charpos);
|
|
428
|
2713 }
|
|
|
2714 }
|
|
|
2715
|
|
|
2716 done:
|
|
|
2717
|
|
|
2718 /* Determine the starting point of the next line if we did not hit the
|
|
|
2719 end of the buffer. */
|
|
826
|
2720 if (data.byte_charpos < BYTE_BUF_ZV (b)
|
|
428
|
2721 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
2722 {
|
|
|
2723 /* #### This check is not correct. If the line terminated
|
|
|
2724 due to a begin-glyph or end-glyph hitting window-end, then
|
|
826
|
2725 data.ch will not point to the character at data.byte_charpos. If
|
|
428
|
2726 you make the two changes mentioned at the top of this loop,
|
|
|
2727 you should be able to say '(if (*prop))'. That should also
|
|
826
|
2728 make it possible to eliminate the data.byte_charpos < BYTE_BUF_ZV (b)
|
|
428
|
2729 check. */
|
|
|
2730
|
|
|
2731 /* The common case is that the line ended because we hit a newline.
|
|
|
2732 In that case, the next character is just the next buffer
|
|
|
2733 position. */
|
|
|
2734 if (data.ch == '\n')
|
|
|
2735 {
|
|
|
2736 /* If data.start_col_enabled is still true, then the window is
|
|
|
2737 scrolled far enough so that nothing on this line is visible.
|
|
|
2738 We need to stick a truncation glyph at the beginning of the
|
|
|
2739 line in that case unless the line is completely blank. */
|
|
826
|
2740 if (data.byte_start_col_enabled)
|
|
428
|
2741 {
|
|
|
2742 if (data.cursor_type == CURSOR_ON)
|
|
|
2743 {
|
|
826
|
2744 if (data.byte_cursor_charpos >= byte_start_pos
|
|
|
2745 && data.byte_cursor_charpos <= data.byte_charpos)
|
|
|
2746 data.byte_cursor_charpos = data.byte_charpos;
|
|
428
|
2747 }
|
|
|
2748 data.findex = DEFAULT_INDEX;
|
|
|
2749 data.start_col = 0;
|
|
826
|
2750 data.byte_start_col_enabled = 0;
|
|
|
2751
|
|
|
2752 if (data.byte_charpos != byte_start_pos)
|
|
428
|
2753 {
|
|
|
2754 struct glyph_block gb;
|
|
|
2755
|
|
|
2756 gb.extent = Qnil;
|
|
|
2757 gb.glyph = Vhscroll_glyph;
|
|
|
2758 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2759 GLYPH_CACHEL (w, HSCROLL_GLYPH_INDEX));
|
|
|
2760 }
|
|
|
2761 else
|
|
|
2762 {
|
|
|
2763 /* This duplicates code down below to add a newline to
|
|
|
2764 the end of an otherwise empty line.*/
|
|
|
2765 data.ch = '\n';
|
|
|
2766 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2767
|
|
867
|
2768 add_ichar_rune (&data);
|
|
428
|
2769 }
|
|
|
2770 }
|
|
|
2771
|
|
826
|
2772 INC_BYTEBPOS (b, data.byte_charpos);
|
|
428
|
2773 }
|
|
|
2774
|
|
|
2775 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
2776 line. */
|
|
|
2777 else
|
|
|
2778 {
|
|
|
2779 struct glyph_block gb;
|
|
|
2780 struct glyph_cachel *cachel;
|
|
|
2781
|
|
|
2782 /* If the line is to be truncated then we actually have to look
|
|
|
2783 for the next newline. We also add the end-of-line glyph which
|
|
|
2784 we know will fit because we adjusted the right border before
|
|
|
2785 we starting laying out the line. */
|
|
819
|
2786 data.max_pixpos += data.end_glyph_width;
|
|
428
|
2787 data.findex = DEFAULT_INDEX;
|
|
|
2788 gb.extent = Qnil;
|
|
|
2789
|
|
|
2790 if (truncate_win)
|
|
|
2791 {
|
|
826
|
2792 Bytebpos byte_pos;
|
|
428
|
2793
|
|
|
2794 /* Now find the start of the next line. */
|
|
826
|
2795 byte_pos = byte_find_next_newline_no_quit (b, data.byte_charpos, 1);
|
|
428
|
2796
|
|
|
2797 /* If the cursor is past the truncation line then we
|
|
|
2798 make it appear on the truncation glyph. If we've hit
|
|
|
2799 the end of the buffer then we also make the cursor
|
|
|
2800 appear unless eob is immediately preceded by a
|
|
|
2801 newline. In that case the cursor should actually
|
|
|
2802 appear on the next line. */
|
|
|
2803 if (data.cursor_type == CURSOR_ON
|
|
826
|
2804 && data.byte_cursor_charpos >= data.byte_charpos
|
|
|
2805 && (data.byte_cursor_charpos < byte_pos ||
|
|
|
2806 (byte_pos == BYTE_BUF_ZV (b)
|
|
|
2807 && (byte_pos == BYTE_BUF_BEGV (b)
|
|
|
2808 || (BYTE_BUF_FETCH_CHAR (b, prev_bytebpos (b, byte_pos))
|
|
428
|
2809 != '\n')))))
|
|
826
|
2810 data.byte_cursor_charpos = byte_pos;
|
|
428
|
2811 else
|
|
|
2812 data.cursor_type = NO_CURSOR;
|
|
|
2813
|
|
826
|
2814 data.byte_charpos = byte_pos;
|
|
428
|
2815 gb.glyph = Vtruncation_glyph;
|
|
|
2816 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
2817 }
|
|
|
2818 else
|
|
|
2819 {
|
|
|
2820 /* The cursor can never be on the continuation glyph. */
|
|
|
2821 data.cursor_type = NO_CURSOR;
|
|
|
2822
|
|
826
|
2823 /* data.byte_charpos is already at the start of the next line. */
|
|
428
|
2824
|
|
442
|
2825 dl->line_continuation = 1;
|
|
428
|
2826 gb.glyph = Vcontinuation_glyph;
|
|
|
2827 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
2828 }
|
|
|
2829
|
|
442
|
2830 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, cachel);
|
|
428
|
2831
|
|
826
|
2832 if (truncate_win && data.byte_charpos == BYTE_BUF_ZV (b)
|
|
|
2833 && BYTE_BUF_FETCH_CHAR (b, prev_bytebpos (b, BYTE_BUF_ZV (b))) != '\n')
|
|
428
|
2834 /* #### Damn this losing shit. */
|
|
826
|
2835 data.byte_charpos++;
|
|
428
|
2836 }
|
|
|
2837 }
|
|
|
2838 else if ((active_minibuffer || !NILP (synch_minibuffers_value))
|
|
826
|
2839 && (!echo_area_active (f) || data.byte_charpos == BYTE_BUF_ZV (b)))
|
|
428
|
2840 {
|
|
|
2841 /* We need to add a marker to the end of the line since there is no
|
|
|
2842 newline character in order for the cursor to get drawn. We label
|
|
|
2843 it as a newline so that it gets handled correctly by the
|
|
|
2844 whitespace routines below. */
|
|
|
2845
|
|
|
2846 data.ch = '\n';
|
|
|
2847 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2848 data.findex = DEFAULT_INDEX;
|
|
|
2849 data.start_col = 0;
|
|
|
2850 data.start_col_xoffset = 0;
|
|
826
|
2851 data.byte_start_col_enabled = 0;
|
|
428
|
2852
|
|
|
2853 data.max_pixpos += data.blank_width;
|
|
867
|
2854 add_ichar_rune (&data);
|
|
428
|
2855 data.max_pixpos -= data.blank_width;
|
|
|
2856
|
|
|
2857 /* #### urk! Chuck, this shit is bad news. Going around
|
|
|
2858 manipulating invalid positions is guaranteed to result in
|
|
|
2859 trouble sooner or later. */
|
|
826
|
2860 data.byte_charpos = BYTE_BUF_ZV (b) + 1;
|
|
428
|
2861 }
|
|
|
2862
|
|
|
2863 /* Calculate left whitespace boundary. */
|
|
|
2864 {
|
|
|
2865 int elt = 0;
|
|
|
2866
|
|
|
2867 /* Whitespace past a newline is considered right whitespace. */
|
|
|
2868 while (elt < Dynarr_length (db->runes))
|
|
|
2869 {
|
|
|
2870 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2871
|
|
|
2872 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
2873 || rb->type == RUNE_BLANK)
|
|
|
2874 {
|
|
|
2875 dl->bounds.left_white += rb->width;
|
|
|
2876 elt++;
|
|
|
2877 }
|
|
|
2878 else
|
|
|
2879 elt = Dynarr_length (db->runes);
|
|
|
2880 }
|
|
|
2881 }
|
|
|
2882
|
|
|
2883 /* Calculate right whitespace boundary. */
|
|
|
2884 {
|
|
|
2885 int elt = Dynarr_length (db->runes) - 1;
|
|
|
2886 int done = 0;
|
|
|
2887
|
|
|
2888 while (!done && elt >= 0)
|
|
|
2889 {
|
|
|
2890 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2891
|
|
|
2892 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
2893 && isspace (rb->object.chr.ch))
|
|
|
2894 && !rb->type == RUNE_BLANK)
|
|
|
2895 {
|
|
|
2896 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
2897 done = 1;
|
|
|
2898 }
|
|
|
2899
|
|
|
2900 elt--;
|
|
|
2901
|
|
|
2902 }
|
|
|
2903
|
|
|
2904 /* The line is blank so everything is considered to be right
|
|
|
2905 whitespace. */
|
|
|
2906 if (!done)
|
|
|
2907 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
2908 }
|
|
|
2909
|
|
|
2910 /* Set the display blocks bounds. */
|
|
|
2911 db->start_pos = dl->bounds.left_in;
|
|
|
2912 if (Dynarr_length (db->runes))
|
|
|
2913 {
|
|
|
2914 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
2915
|
|
|
2916 db->end_pos = rb->xpos + rb->width;
|
|
|
2917 }
|
|
|
2918 else
|
|
|
2919 db->end_pos = dl->bounds.right_white;
|
|
|
2920
|
|
819
|
2921 calculate_baseline (&data);
|
|
428
|
2922
|
|
|
2923 dl->ascent = data.new_ascent;
|
|
|
2924 dl->descent = data.new_descent;
|
|
|
2925
|
|
|
2926 {
|
|
|
2927 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
2928
|
|
|
2929 if (dl->ascent < ascent)
|
|
|
2930 dl->ascent = ascent;
|
|
|
2931 }
|
|
|
2932 {
|
|
|
2933 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
2934
|
|
|
2935 if (dl->descent < descent)
|
|
|
2936 dl->descent = descent;
|
|
|
2937 }
|
|
|
2938
|
|
819
|
2939 calculate_yoffset (dl, db);
|
|
|
2940
|
|
428
|
2941 dl->cursor_elt = data.cursor_x;
|
|
|
2942 /* #### lossage lossage lossage! Fix this shit! */
|
|
826
|
2943 if (data.byte_charpos > BYTE_BUF_ZV (b))
|
|
|
2944 dl->end_charpos = BUF_ZV (b);
|
|
428
|
2945 else
|
|
826
|
2946 dl->end_charpos = bytebpos_to_charbpos (b, data.byte_charpos) - 1;
|
|
428
|
2947 if (truncate_win)
|
|
826
|
2948 data.dl->num_chars = column_at_point (b, dl->end_charpos, 0);
|
|
428
|
2949 else
|
|
|
2950 /* This doesn't correctly take into account tabs and control
|
|
|
2951 characters but if the window isn't being truncated then this
|
|
|
2952 value isn't going to end up being used anyhow. */
|
|
826
|
2953 data.dl->num_chars = dl->end_charpos - dl->charpos;
|
|
428
|
2954
|
|
|
2955 /* #### handle horizontally scrolled line with text none of which
|
|
|
2956 was actually laid out. */
|
|
|
2957
|
|
|
2958 /* #### handle any remainder of overlay arrow */
|
|
|
2959
|
|
|
2960 if (*prop == ADD_FAILED)
|
|
|
2961 *prop = NULL;
|
|
|
2962
|
|
|
2963 if (truncate_win && *prop)
|
|
|
2964 {
|
|
|
2965 Dynarr_free (*prop);
|
|
|
2966 *prop = NULL;
|
|
|
2967 }
|
|
|
2968
|
|
|
2969 extent_fragment_delete (data.ef);
|
|
|
2970
|
|
|
2971 /* #### If we started at EOB, then make sure we return a value past
|
|
|
2972 it so that regenerate_window will exit properly. This is bogus.
|
|
|
2973 The main loop should get fixed so that it isn't necessary to call
|
|
|
2974 this function if we are already at EOB. */
|
|
|
2975
|
|
826
|
2976 if (data.byte_charpos == BYTE_BUF_ZV (b) && byte_start_pos == BYTE_BUF_ZV (b))
|
|
|
2977 return data.byte_charpos + 1; /* Yuck! */
|
|
428
|
2978 else
|
|
826
|
2979 return data.byte_charpos;
|
|
428
|
2980 }
|
|
|
2981
|
|
|
2982 /* Display the overlay arrow at the beginning of the given line. */
|
|
|
2983
|
|
|
2984 static int
|
|
|
2985 create_overlay_glyph_block (struct window *w, struct display_line *dl)
|
|
|
2986 {
|
|
|
2987 struct frame *f = XFRAME (w->frame);
|
|
|
2988 struct device *d = XDEVICE (f->device);
|
|
|
2989 pos_data data;
|
|
|
2990
|
|
|
2991 /* If Voverlay_arrow_string isn't valid then just fail silently. */
|
|
|
2992 if (!STRINGP (Voverlay_arrow_string) && !GLYPHP (Voverlay_arrow_string))
|
|
|
2993 return 0;
|
|
|
2994
|
|
|
2995 xzero (data);
|
|
|
2996 data.ef = NULL;
|
|
|
2997 data.d = d;
|
|
793
|
2998 data.window = wrap_window (w);
|
|
428
|
2999 data.db = get_display_block_from_line (dl, OVERWRITE);
|
|
|
3000 data.dl = dl;
|
|
|
3001 data.pixpos = dl->bounds.left_in;
|
|
|
3002 data.max_pixpos = dl->bounds.right_in;
|
|
|
3003 data.cursor_type = NO_CURSOR;
|
|
|
3004 data.cursor_x = -1;
|
|
|
3005 data.findex = DEFAULT_INDEX;
|
|
|
3006 data.last_charset = Qunbound;
|
|
|
3007 data.last_findex = DEFAULT_INDEX;
|
|
|
3008 data.result_str = Qnil;
|
|
|
3009 data.string = Qnil;
|
|
|
3010
|
|
|
3011 Dynarr_reset (data.db->runes);
|
|
|
3012
|
|
|
3013 if (STRINGP (Voverlay_arrow_string))
|
|
|
3014 {
|
|
867
|
3015 add_ibyte_string_runes
|
|
428
|
3016 (&data,
|
|
|
3017 XSTRING_DATA (Voverlay_arrow_string),
|
|
|
3018 XSTRING_LENGTH (Voverlay_arrow_string),
|
|
793
|
3019 1, 0);
|
|
428
|
3020 }
|
|
|
3021 else if (GLYPHP (Voverlay_arrow_string))
|
|
|
3022 {
|
|
|
3023 struct glyph_block gb;
|
|
|
3024
|
|
|
3025 gb.glyph = Voverlay_arrow_string;
|
|
|
3026 gb.extent = Qnil;
|
|
|
3027 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
3028 }
|
|
819
|
3029
|
|
428
|
3030 if (data.max_pixmap_height)
|
|
|
3031 {
|
|
|
3032 int height = data.new_ascent + data.new_descent;
|
|
|
3033 int pix_ascent, pix_descent;
|
|
819
|
3034
|
|
428
|
3035 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
3036 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
819
|
3037 calculate_baseline (&data);
|
|
428
|
3038
|
|
|
3039 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
3040 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
3041 }
|
|
|
3042
|
|
|
3043 dl->ascent = data.new_ascent;
|
|
|
3044 dl->descent = data.new_descent;
|
|
|
3045
|
|
|
3046 data.db->start_pos = dl->bounds.left_in;
|
|
|
3047 data.db->end_pos = data.pixpos;
|
|
|
3048
|
|
819
|
3049 calculate_yoffset (dl, data.db);
|
|
|
3050
|
|
428
|
3051 return data.pixpos - dl->bounds.left_in;
|
|
|
3052 }
|
|
|
3053
|
|
|
3054 /* Add a type of glyph to a margin display block. */
|
|
|
3055
|
|
|
3056 static int
|
|
|
3057 add_margin_runes (struct display_line *dl, struct display_block *db, int start,
|
|
|
3058 int count, enum glyph_layout layout, int side, Lisp_Object window)
|
|
|
3059 {
|
|
|
3060 glyph_block_dynarr *gbd = (side == LEFT_GLYPHS
|
|
|
3061 ? dl->left_glyphs
|
|
|
3062 : dl->right_glyphs);
|
|
|
3063 int elt, end;
|
|
|
3064 int reverse;
|
|
442
|
3065 struct window *w = XWINDOW (window);
|
|
|
3066 struct frame *f = XFRAME (w->frame);
|
|
|
3067 struct device *d = XDEVICE (f->device);
|
|
|
3068 pos_data data;
|
|
|
3069
|
|
|
3070 xzero (data);
|
|
|
3071 data.d = d;
|
|
|
3072 data.window = window;
|
|
|
3073 data.db = db;
|
|
|
3074 data.dl = dl;
|
|
|
3075 data.pixpos = start;
|
|
|
3076 data.cursor_type = NO_CURSOR;
|
|
|
3077 data.cursor_x = -1;
|
|
|
3078 data.last_charset = Qunbound;
|
|
|
3079 data.last_findex = DEFAULT_INDEX;
|
|
|
3080 data.result_str = Qnil;
|
|
|
3081 data.string = Qnil;
|
|
|
3082 data.new_ascent = dl->ascent;
|
|
|
3083 data.new_descent = dl->descent;
|
|
428
|
3084
|
|
|
3085 if ((layout == GL_WHITESPACE && side == LEFT_GLYPHS)
|
|
|
3086 || (layout == GL_INSIDE_MARGIN && side == RIGHT_GLYPHS))
|
|
|
3087 {
|
|
|
3088 reverse = 1;
|
|
|
3089 elt = Dynarr_length (gbd) - 1;
|
|
|
3090 end = 0;
|
|
|
3091 }
|
|
|
3092 else
|
|
|
3093 {
|
|
|
3094 reverse = 0;
|
|
|
3095 elt = 0;
|
|
|
3096 end = Dynarr_length (gbd);
|
|
|
3097 }
|
|
|
3098
|
|
|
3099 while (count && ((!reverse && elt < end) || (reverse && elt >= end)))
|
|
|
3100 {
|
|
|
3101 struct glyph_block *gb = Dynarr_atp (gbd, elt);
|
|
|
3102
|
|
|
3103 if (NILP (gb->extent))
|
|
2500
|
3104 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3105
|
|
|
3106 if (gb->active &&
|
|
|
3107 ((side == LEFT_GLYPHS &&
|
|
|
3108 extent_begin_glyph_layout (XEXTENT (gb->extent)) == layout)
|
|
|
3109 || (side == RIGHT_GLYPHS &&
|
|
|
3110 extent_end_glyph_layout (XEXTENT (gb->extent)) == layout)))
|
|
|
3111 {
|
|
442
|
3112 data.findex = gb->findex;
|
|
|
3113 data.max_pixpos = data.pixpos + gb->width;
|
|
|
3114 add_glyph_rune (&data, gb, side, 0, NULL);
|
|
428
|
3115 count--;
|
|
|
3116 gb->active = 0;
|
|
|
3117 }
|
|
|
3118
|
|
|
3119 (reverse ? elt-- : elt++);
|
|
|
3120 }
|
|
|
3121
|
|
819
|
3122 calculate_baseline (&data);
|
|
442
|
3123
|
|
|
3124 dl->ascent = data.new_ascent;
|
|
|
3125 dl->descent = data.new_descent;
|
|
|
3126
|
|
819
|
3127 calculate_yoffset (dl, data.db);
|
|
|
3128
|
|
442
|
3129 return data.pixpos;
|
|
428
|
3130 }
|
|
|
3131
|
|
|
3132 /* Add a blank to a margin display block. */
|
|
|
3133
|
|
|
3134 static void
|
|
2286
|
3135 add_margin_blank (struct display_line *UNUSED (dl), struct display_block *db,
|
|
428
|
3136 struct window *w, int xpos, int width, int side)
|
|
|
3137 {
|
|
|
3138 struct rune rb;
|
|
|
3139
|
|
|
3140 rb.findex = (side == LEFT_GLYPHS
|
|
|
3141 ? get_builtin_face_cache_index (w, Vleft_margin_face)
|
|
|
3142 : get_builtin_face_cache_index (w, Vright_margin_face));
|
|
|
3143 rb.xpos = xpos;
|
|
|
3144 rb.width = width;
|
|
826
|
3145 rb.charpos = -1;
|
|
428
|
3146 rb.endpos = 0;
|
|
|
3147 rb.type = RUNE_BLANK;
|
|
|
3148 rb.cursor_type = CURSOR_OFF;
|
|
|
3149
|
|
|
3150 Dynarr_add (db->runes, rb);
|
|
|
3151 }
|
|
|
3152
|
|
|
3153 /* Display glyphs in the left outside margin, left inside margin and
|
|
|
3154 left whitespace area. */
|
|
|
3155
|
|
|
3156 static void
|
|
|
3157 create_left_glyph_block (struct window *w, struct display_line *dl,
|
|
|
3158 int overlay_width)
|
|
|
3159 {
|
|
|
3160 Lisp_Object window;
|
|
|
3161
|
|
|
3162 int use_overflow = (NILP (w->use_left_overflow) ? 0 : 1);
|
|
|
3163 int elt, end_xpos;
|
|
|
3164 int out_end, in_out_start, in_in_end, white_out_start, white_in_start;
|
|
|
3165 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
3166 int left_in_start = dl->bounds.left_in;
|
|
|
3167 int left_in_end = dl->bounds.left_in + overlay_width;
|
|
|
3168
|
|
|
3169 struct display_block *odb, *idb;
|
|
|
3170
|
|
793
|
3171 window = wrap_window (w);
|
|
428
|
3172
|
|
|
3173 /* We have to add the glyphs to the line in the order outside,
|
|
|
3174 inside, whitespace. However the precedence dictates that we
|
|
|
3175 determine how many will fit in the reverse order. */
|
|
|
3176
|
|
|
3177 /* Determine how many whitespace glyphs we can display and where
|
|
|
3178 they should start. */
|
|
|
3179 white_in_start = dl->bounds.left_white;
|
|
|
3180 white_out_start = left_in_start;
|
|
|
3181 white_out_cnt = white_in_cnt = 0;
|
|
|
3182 elt = 0;
|
|
|
3183
|
|
|
3184 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3185 {
|
|
|
3186 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3187
|
|
|
3188 if (NILP (gb->extent))
|
|
2500
|
3189 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3190
|
|
|
3191 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
3192 {
|
|
|
3193 int width;
|
|
|
3194
|
|
438
|
3195 width = glyph_width (gb->glyph, window);
|
|
428
|
3196
|
|
|
3197 if (white_in_start - width >= left_in_end)
|
|
|
3198 {
|
|
|
3199 white_in_cnt++;
|
|
|
3200 white_in_start -= width;
|
|
|
3201 gb->width = width;
|
|
|
3202 gb->active = 1;
|
|
|
3203 }
|
|
|
3204 else if (use_overflow
|
|
|
3205 && (white_out_start - width > dl->bounds.left_out))
|
|
|
3206 {
|
|
|
3207 white_out_cnt++;
|
|
|
3208 white_out_start -= width;
|
|
|
3209 gb->width = width;
|
|
|
3210 gb->active = 1;
|
|
|
3211 }
|
|
|
3212 else
|
|
|
3213 gb->active = 0;
|
|
|
3214 }
|
|
|
3215
|
|
|
3216 elt++;
|
|
|
3217 }
|
|
|
3218
|
|
|
3219 /* Determine how many inside margin glyphs we can display and where
|
|
|
3220 they should start. The inside margin glyphs get whatever space
|
|
|
3221 is left after the whitespace glyphs have been displayed. These
|
|
|
3222 are tricky to calculate since if we decide to use the overflow
|
|
|
3223 area we basically have to start over. So for these we build up a
|
|
|
3224 list of just the inside margin glyphs and manipulate it to
|
|
|
3225 determine the needed info. */
|
|
|
3226 {
|
|
|
3227 glyph_block_dynarr *ib;
|
|
|
3228 int avail_in, avail_out;
|
|
|
3229 int done = 0;
|
|
|
3230 int marker = 0;
|
|
|
3231 int used_in, used_out;
|
|
|
3232
|
|
|
3233 elt = 0;
|
|
|
3234 used_in = used_out = 0;
|
|
|
3235 ib = Dynarr_new (glyph_block);
|
|
|
3236 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3237 {
|
|
|
3238 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3239
|
|
|
3240 if (NILP (gb->extent))
|
|
2500
|
3241 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3242
|
|
|
3243 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3244 GL_INSIDE_MARGIN)
|
|
|
3245 {
|
|
438
|
3246 gb->width = glyph_width (gb->glyph, window);
|
|
428
|
3247 used_in += gb->width;
|
|
|
3248 Dynarr_add (ib, *gb);
|
|
|
3249 }
|
|
|
3250
|
|
|
3251 elt++;
|
|
|
3252 }
|
|
|
3253
|
|
|
3254 if (white_out_cnt)
|
|
|
3255 avail_in = 0;
|
|
|
3256 else
|
|
|
3257 {
|
|
|
3258 avail_in = white_in_start - left_in_end;
|
|
|
3259 if (avail_in < 0)
|
|
|
3260 avail_in = 0;
|
|
|
3261 }
|
|
|
3262
|
|
|
3263 if (!use_overflow)
|
|
|
3264 avail_out = 0;
|
|
|
3265 else
|
|
|
3266 avail_out = white_out_start - dl->bounds.left_out;
|
|
|
3267
|
|
|
3268 marker = 0;
|
|
|
3269 while (!done && marker < Dynarr_length (ib))
|
|
|
3270 {
|
|
|
3271 int width = Dynarr_atp (ib, marker)->width;
|
|
|
3272
|
|
|
3273 /* If everything now fits in the available inside margin
|
|
|
3274 space, we're done. */
|
|
|
3275 if (used_in <= avail_in)
|
|
|
3276 done = 1;
|
|
|
3277 else
|
|
|
3278 {
|
|
|
3279 /* Otherwise see if we have room to move a glyph to the
|
|
|
3280 outside. */
|
|
|
3281 if (used_out + width <= avail_out)
|
|
|
3282 {
|
|
|
3283 used_out += width;
|
|
|
3284 used_in -= width;
|
|
|
3285 }
|
|
|
3286 else
|
|
|
3287 done = 1;
|
|
|
3288 }
|
|
|
3289
|
|
|
3290 if (!done)
|
|
|
3291 marker++;
|
|
|
3292 }
|
|
|
3293
|
|
|
3294 /* At this point we now know that everything from marker on goes in
|
|
|
3295 the inside margin and everything before it goes in the outside
|
|
|
3296 margin. The stuff going into the outside margin is guaranteed
|
|
|
3297 to fit, but we may have to trim some stuff from the inside. */
|
|
|
3298
|
|
|
3299 in_in_end = left_in_end;
|
|
|
3300 in_out_start = white_out_start;
|
|
|
3301 in_out_cnt = in_in_cnt = 0;
|
|
|
3302
|
|
|
3303 Dynarr_free (ib);
|
|
|
3304 elt = 0;
|
|
|
3305 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3306 {
|
|
|
3307 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3308
|
|
|
3309 if (NILP (gb->extent))
|
|
2500
|
3310 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3311
|
|
|
3312 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3313 GL_INSIDE_MARGIN)
|
|
|
3314 {
|
|
438
|
3315 int width = glyph_width (gb->glyph, window);
|
|
428
|
3316
|
|
|
3317 if (used_out)
|
|
|
3318 {
|
|
|
3319 in_out_cnt++;
|
|
|
3320 in_out_start -= width;
|
|
|
3321 gb->width = width;
|
|
|
3322 gb->active = 1;
|
|
|
3323 used_out -= width;
|
|
|
3324 }
|
|
|
3325 else if (in_in_end + width < white_in_start)
|
|
|
3326 {
|
|
|
3327 in_in_cnt++;
|
|
|
3328 in_in_end += width;
|
|
|
3329 gb->width = width;
|
|
|
3330 gb->active = 1;
|
|
|
3331 }
|
|
|
3332 else
|
|
|
3333 gb->active = 0;
|
|
|
3334 }
|
|
|
3335
|
|
|
3336 elt++;
|
|
|
3337 }
|
|
|
3338 }
|
|
|
3339
|
|
|
3340 /* Determine how many outside margin glyphs we can display. They
|
|
|
3341 always start at the left outside margin and can only use the
|
|
|
3342 outside margin space. */
|
|
|
3343 out_end = dl->bounds.left_out;
|
|
|
3344 out_cnt = 0;
|
|
|
3345 elt = 0;
|
|
|
3346
|
|
|
3347 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3348 {
|
|
|
3349 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3350
|
|
|
3351 if (NILP (gb->extent))
|
|
2500
|
3352 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3353
|
|
|
3354 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3355 GL_OUTSIDE_MARGIN)
|
|
|
3356 {
|
|
438
|
3357 int width = glyph_width (gb->glyph, window);
|
|
428
|
3358
|
|
|
3359 if (out_end + width <= in_out_start)
|
|
|
3360 {
|
|
|
3361 out_cnt++;
|
|
|
3362 out_end += width;
|
|
|
3363 gb->width = width;
|
|
|
3364 gb->active = 1;
|
|
|
3365 }
|
|
|
3366 else
|
|
|
3367 gb->active = 0;
|
|
|
3368 }
|
|
|
3369
|
|
|
3370 elt++;
|
|
|
3371 }
|
|
|
3372
|
|
|
3373 /* Now that we know where everything goes, we add the glyphs as
|
|
|
3374 runes to the appropriate display blocks. */
|
|
|
3375 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3376 {
|
|
|
3377 odb = get_display_block_from_line (dl, LEFT_OUTSIDE_MARGIN);
|
|
|
3378 odb->start_pos = dl->bounds.left_out;
|
|
|
3379 /* #### We should stop adding a blank to account for the space
|
|
|
3380 between the end of the glyphs and the margin and instead set
|
|
|
3381 this accordingly. */
|
|
|
3382 odb->end_pos = dl->bounds.left_in;
|
|
|
3383 Dynarr_reset (odb->runes);
|
|
|
3384 }
|
|
|
3385 else
|
|
|
3386 odb = 0;
|
|
|
3387
|
|
|
3388 if (in_in_cnt || white_in_cnt)
|
|
|
3389 {
|
|
|
3390 idb = get_display_block_from_line (dl, LEFT_INSIDE_MARGIN);
|
|
|
3391 idb->start_pos = dl->bounds.left_in;
|
|
|
3392 /* #### See above comment for odb->end_pos */
|
|
|
3393 idb->end_pos = dl->bounds.left_white;
|
|
|
3394 Dynarr_reset (idb->runes);
|
|
|
3395 }
|
|
|
3396 else
|
|
|
3397 idb = 0;
|
|
|
3398
|
|
|
3399 /* First add the outside margin glyphs. */
|
|
|
3400 if (out_cnt)
|
|
|
3401 end_xpos = add_margin_runes (dl, odb, dl->bounds.left_out, out_cnt,
|
|
|
3402 GL_OUTSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3403 else
|
|
|
3404 end_xpos = dl->bounds.left_out;
|
|
|
3405
|
|
|
3406 /* There may be blank space between the outside margin glyphs and
|
|
|
3407 the inside margin glyphs. If so, add a blank. */
|
|
|
3408 if (in_out_cnt && (in_out_start - end_xpos))
|
|
|
3409 {
|
|
|
3410 add_margin_blank (dl, odb, w, end_xpos, in_out_start - end_xpos,
|
|
|
3411 LEFT_GLYPHS);
|
|
|
3412 }
|
|
|
3413
|
|
|
3414 /* Next add the inside margin glyphs which are actually in the
|
|
|
3415 outside margin. */
|
|
|
3416 if (in_out_cnt)
|
|
|
3417 {
|
|
|
3418 end_xpos = add_margin_runes (dl, odb, in_out_start, in_out_cnt,
|
|
|
3419 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3420 }
|
|
|
3421
|
|
|
3422 /* If we didn't add any inside margin glyphs to the outside margin,
|
|
|
3423 but are adding whitespace glyphs, then we need to add a blank
|
|
|
3424 here. */
|
|
|
3425 if (!in_out_cnt && white_out_cnt && (white_out_start - end_xpos))
|
|
|
3426 {
|
|
|
3427 add_margin_blank (dl, odb, w, end_xpos, white_out_start - end_xpos,
|
|
|
3428 LEFT_GLYPHS);
|
|
|
3429 }
|
|
|
3430
|
|
|
3431 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3432 outside margin. */
|
|
|
3433 if (white_out_cnt)
|
|
|
3434 {
|
|
|
3435 end_xpos = add_margin_runes (dl, odb, white_out_start, white_out_cnt,
|
|
|
3436 GL_WHITESPACE, LEFT_GLYPHS, window);
|
|
|
3437 }
|
|
|
3438
|
|
|
3439 /* We take care of clearing between the end of the glyphs and the
|
|
|
3440 start of the inside margin for lines which have glyphs. */
|
|
|
3441 if (odb && (left_in_start - end_xpos))
|
|
|
3442 {
|
|
|
3443 add_margin_blank (dl, odb, w, end_xpos, left_in_start - end_xpos,
|
|
|
3444 LEFT_GLYPHS);
|
|
|
3445 }
|
|
|
3446
|
|
|
3447 /* Next add the inside margin glyphs which are actually in the
|
|
|
3448 inside margin. */
|
|
|
3449 if (in_in_cnt)
|
|
|
3450 {
|
|
|
3451 end_xpos = add_margin_runes (dl, idb, left_in_end, in_in_cnt,
|
|
|
3452 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3453 }
|
|
|
3454 else
|
|
|
3455 end_xpos = left_in_end;
|
|
|
3456
|
|
|
3457 /* Make sure that the area between the end of the inside margin
|
|
|
3458 glyphs and the whitespace glyphs is cleared. */
|
|
|
3459 if (idb && (white_in_start - end_xpos > 0))
|
|
|
3460 {
|
|
|
3461 add_margin_blank (dl, idb, w, end_xpos, white_in_start - end_xpos,
|
|
|
3462 LEFT_GLYPHS);
|
|
|
3463 }
|
|
|
3464
|
|
|
3465 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3466 inside margin. */
|
|
|
3467 if (white_in_cnt)
|
|
|
3468 {
|
|
|
3469 add_margin_runes (dl, idb, white_in_start, white_in_cnt, GL_WHITESPACE,
|
|
|
3470 LEFT_GLYPHS, window);
|
|
|
3471 }
|
|
|
3472
|
|
|
3473 /* Whitespace glyphs always end right next to the text block so
|
|
|
3474 there is nothing we have to make sure is cleared after them. */
|
|
|
3475 }
|
|
|
3476
|
|
|
3477 /* Display glyphs in the right outside margin, right inside margin and
|
|
|
3478 right whitespace area. */
|
|
|
3479
|
|
|
3480 static void
|
|
|
3481 create_right_glyph_block (struct window *w, struct display_line *dl)
|
|
|
3482 {
|
|
|
3483 Lisp_Object window;
|
|
|
3484
|
|
|
3485 int use_overflow = (NILP (w->use_right_overflow) ? 0 : 1);
|
|
|
3486 int elt, end_xpos;
|
|
|
3487 int out_start, in_out_end, in_in_start, white_out_end, white_in_end;
|
|
|
3488 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
3489
|
|
|
3490 struct display_block *odb, *idb;
|
|
|
3491
|
|
793
|
3492 window = wrap_window (w);
|
|
428
|
3493
|
|
|
3494 /* We have to add the glyphs to the line in the order outside,
|
|
|
3495 inside, whitespace. However the precedence dictates that we
|
|
|
3496 determine how many will fit in the reverse order. */
|
|
|
3497
|
|
|
3498 /* Determine how many whitespace glyphs we can display and where
|
|
|
3499 they should start. */
|
|
|
3500 white_in_end = dl->bounds.right_white;
|
|
|
3501 white_out_end = dl->bounds.right_in;
|
|
|
3502 white_out_cnt = white_in_cnt = 0;
|
|
|
3503 elt = 0;
|
|
|
3504
|
|
|
3505 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3506 {
|
|
|
3507 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3508
|
|
|
3509 if (NILP (gb->extent))
|
|
2500
|
3510 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3511
|
|
|
3512 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
3513 {
|
|
438
|
3514 int width = glyph_width (gb->glyph, window);
|
|
428
|
3515
|
|
|
3516 if (white_in_end + width <= dl->bounds.right_in)
|
|
|
3517 {
|
|
|
3518 white_in_cnt++;
|
|
|
3519 white_in_end += width;
|
|
|
3520 gb->width = width;
|
|
|
3521 gb->active = 1;
|
|
|
3522 }
|
|
|
3523 else if (use_overflow
|
|
|
3524 && (white_out_end + width <= dl->bounds.right_out))
|
|
|
3525 {
|
|
|
3526 white_out_cnt++;
|
|
|
3527 white_out_end += width;
|
|
|
3528 gb->width = width;
|
|
|
3529 gb->active = 1;
|
|
|
3530 }
|
|
|
3531 else
|
|
|
3532 gb->active = 0;
|
|
|
3533 }
|
|
|
3534
|
|
|
3535 elt++;
|
|
|
3536 }
|
|
|
3537
|
|
|
3538 /* Determine how many inside margin glyphs we can display and where
|
|
|
3539 they should start. The inside margin glyphs get whatever space
|
|
|
3540 is left after the whitespace glyphs have been displayed. These
|
|
|
3541 are tricky to calculate since if we decide to use the overflow
|
|
|
3542 area we basically have to start over. So for these we build up a
|
|
|
3543 list of just the inside margin glyphs and manipulate it to
|
|
|
3544 determine the needed info. */
|
|
|
3545 {
|
|
|
3546 glyph_block_dynarr *ib;
|
|
|
3547 int avail_in, avail_out;
|
|
|
3548 int done = 0;
|
|
|
3549 int marker = 0;
|
|
|
3550 int used_in, used_out;
|
|
|
3551
|
|
|
3552 elt = 0;
|
|
|
3553 used_in = used_out = 0;
|
|
|
3554 ib = Dynarr_new (glyph_block);
|
|
|
3555 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3556 {
|
|
|
3557 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3558
|
|
|
3559 if (NILP (gb->extent))
|
|
2500
|
3560 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3561
|
|
|
3562 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3563 {
|
|
438
|
3564 gb->width = glyph_width (gb->glyph, window);
|
|
428
|
3565 used_in += gb->width;
|
|
|
3566 Dynarr_add (ib, *gb);
|
|
|
3567 }
|
|
|
3568
|
|
|
3569 elt++;
|
|
|
3570 }
|
|
|
3571
|
|
|
3572 if (white_out_cnt)
|
|
|
3573 avail_in = 0;
|
|
|
3574 else
|
|
|
3575 avail_in = dl->bounds.right_in - white_in_end;
|
|
|
3576
|
|
|
3577 if (!use_overflow)
|
|
|
3578 avail_out = 0;
|
|
|
3579 else
|
|
|
3580 avail_out = dl->bounds.right_out - white_out_end;
|
|
|
3581
|
|
|
3582 marker = 0;
|
|
|
3583 while (!done && marker < Dynarr_length (ib))
|
|
|
3584 {
|
|
|
3585 int width = Dynarr_atp (ib, marker)->width;
|
|
|
3586
|
|
|
3587 /* If everything now fits in the available inside margin
|
|
|
3588 space, we're done. */
|
|
|
3589 if (used_in <= avail_in)
|
|
|
3590 done = 1;
|
|
|
3591 else
|
|
|
3592 {
|
|
|
3593 /* Otherwise see if we have room to move a glyph to the
|
|
|
3594 outside. */
|
|
|
3595 if (used_out + width <= avail_out)
|
|
|
3596 {
|
|
|
3597 used_out += width;
|
|
|
3598 used_in -= width;
|
|
|
3599 }
|
|
|
3600 else
|
|
|
3601 done = 1;
|
|
|
3602 }
|
|
|
3603
|
|
|
3604 if (!done)
|
|
|
3605 marker++;
|
|
|
3606 }
|
|
|
3607
|
|
|
3608 /* At this point we now know that everything from marker on goes in
|
|
|
3609 the inside margin and everything before it goes in the outside
|
|
|
3610 margin. The stuff going into the outside margin is guaranteed
|
|
|
3611 to fit, but we may have to trim some stuff from the inside. */
|
|
|
3612
|
|
|
3613 in_in_start = dl->bounds.right_in;
|
|
|
3614 in_out_end = dl->bounds.right_in;
|
|
|
3615 in_out_cnt = in_in_cnt = 0;
|
|
|
3616
|
|
|
3617 Dynarr_free (ib);
|
|
|
3618 elt = 0;
|
|
|
3619 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3620 {
|
|
|
3621 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3622
|
|
|
3623 if (NILP (gb->extent))
|
|
2500
|
3624 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3625
|
|
|
3626 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3627 {
|
|
438
|
3628 int width = glyph_width (gb->glyph, window);
|
|
428
|
3629
|
|
|
3630 if (used_out)
|
|
|
3631 {
|
|
|
3632 in_out_cnt++;
|
|
|
3633 in_out_end += width;
|
|
|
3634 gb->width = width;
|
|
|
3635 gb->active = 1;
|
|
|
3636 used_out -= width;
|
|
|
3637 }
|
|
|
3638 else if (in_in_start - width >= white_in_end)
|
|
|
3639 {
|
|
|
3640 in_in_cnt++;
|
|
|
3641 in_in_start -= width;
|
|
|
3642 gb->width = width;
|
|
|
3643 gb->active = 1;
|
|
|
3644 }
|
|
|
3645 else
|
|
|
3646 gb->active = 0;
|
|
|
3647 }
|
|
|
3648
|
|
|
3649 elt++;
|
|
|
3650 }
|
|
|
3651 }
|
|
|
3652
|
|
|
3653 /* Determine how many outside margin glyphs we can display. They
|
|
|
3654 always start at the right outside margin and can only use the
|
|
|
3655 outside margin space. */
|
|
|
3656 out_start = dl->bounds.right_out;
|
|
|
3657 out_cnt = 0;
|
|
|
3658 elt = 0;
|
|
|
3659
|
|
|
3660 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3661 {
|
|
|
3662 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3663
|
|
|
3664 if (NILP (gb->extent))
|
|
2500
|
3665 ABORT (); /* these should have been handled in add_glyph_rune */
|
|
428
|
3666
|
|
|
3667 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_OUTSIDE_MARGIN)
|
|
|
3668 {
|
|
438
|
3669 int width = glyph_width (gb->glyph, window);
|
|
428
|
3670
|
|
|
3671 if (out_start - width >= in_out_end)
|
|
|
3672 {
|
|
|
3673 out_cnt++;
|
|
|
3674 out_start -= width;
|
|
|
3675 gb->width = width;
|
|
|
3676 gb->active = 1;
|
|
|
3677 }
|
|
|
3678 else
|
|
|
3679 gb->active = 0;
|
|
|
3680 }
|
|
|
3681
|
|
|
3682 elt++;
|
|
|
3683 }
|
|
|
3684
|
|
|
3685 /* Now that we now where everything goes, we add the glyphs as runes
|
|
|
3686 to the appropriate display blocks. */
|
|
|
3687 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3688 {
|
|
|
3689 odb = get_display_block_from_line (dl, RIGHT_OUTSIDE_MARGIN);
|
|
|
3690 /* #### See comments before odb->start_pos init in
|
|
|
3691 create_left_glyph_block */
|
|
|
3692 odb->start_pos = dl->bounds.right_in;
|
|
|
3693 odb->end_pos = dl->bounds.right_out;
|
|
|
3694 Dynarr_reset (odb->runes);
|
|
|
3695 }
|
|
|
3696 else
|
|
|
3697 odb = 0;
|
|
|
3698
|
|
|
3699 if (in_in_cnt || white_in_cnt)
|
|
|
3700 {
|
|
|
3701 idb = get_display_block_from_line (dl, RIGHT_INSIDE_MARGIN);
|
|
|
3702 idb->start_pos = dl->bounds.right_white;
|
|
|
3703 /* #### See comments before odb->start_pos init in
|
|
|
3704 create_left_glyph_block */
|
|
|
3705 idb->end_pos = dl->bounds.right_in;
|
|
|
3706 Dynarr_reset (idb->runes);
|
|
|
3707 }
|
|
|
3708 else
|
|
|
3709 idb = 0;
|
|
|
3710
|
|
|
3711 /* First add the whitespace margin glyphs which are actually in the
|
|
|
3712 inside margin. */
|
|
|
3713 if (white_in_cnt)
|
|
|
3714 {
|
|
|
3715 end_xpos = add_margin_runes (dl, idb, dl->bounds.right_white,
|
|
|
3716 white_in_cnt, GL_WHITESPACE, RIGHT_GLYPHS,
|
|
|
3717 window);
|
|
|
3718 }
|
|
|
3719 else
|
|
|
3720 end_xpos = dl->bounds.right_white;
|
|
|
3721
|
|
|
3722 /* Make sure that the area between the end of the whitespace glyphs
|
|
|
3723 and the inside margin glyphs is cleared. */
|
|
|
3724 if (in_in_cnt && (in_in_start - end_xpos))
|
|
|
3725 {
|
|
|
3726 add_margin_blank (dl, idb, w, end_xpos, in_in_start - end_xpos,
|
|
|
3727 RIGHT_GLYPHS);
|
|
|
3728 }
|
|
|
3729
|
|
|
3730 /* Next add the inside margin glyphs which are actually in the
|
|
|
3731 inside margin. */
|
|
|
3732 if (in_in_cnt)
|
|
|
3733 {
|
|
|
3734 end_xpos = add_margin_runes (dl, idb, in_in_start, in_in_cnt,
|
|
|
3735 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3736 }
|
|
|
3737
|
|
|
3738 /* If we didn't add any inside margin glyphs then make sure the rest
|
|
|
3739 of the inside margin area gets cleared. */
|
|
|
3740 if (idb && (dl->bounds.right_in - end_xpos))
|
|
|
3741 {
|
|
|
3742 add_margin_blank (dl, idb, w, end_xpos, dl->bounds.right_in - end_xpos,
|
|
|
3743 RIGHT_GLYPHS);
|
|
|
3744 }
|
|
|
3745
|
|
|
3746 /* Next add any whitespace glyphs in the outside margin. */
|
|
|
3747 if (white_out_cnt)
|
|
|
3748 {
|
|
|
3749 end_xpos = add_margin_runes (dl, odb, dl->bounds.right_in, white_out_cnt,
|
|
|
3750 GL_WHITESPACE, RIGHT_GLYPHS, window);
|
|
|
3751 }
|
|
|
3752 else
|
|
|
3753 end_xpos = dl->bounds.right_in;
|
|
|
3754
|
|
|
3755 /* Next add any inside margin glyphs in the outside margin. */
|
|
|
3756 if (in_out_cnt)
|
|
|
3757 {
|
|
|
3758 end_xpos = add_margin_runes (dl, odb, end_xpos, in_out_cnt,
|
|
|
3759 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3760 }
|
|
|
3761
|
|
|
3762 /* There may be space between any whitespace or inside margin glyphs
|
|
|
3763 in the outside margin and the actual outside margin glyphs. */
|
|
|
3764 if (odb && (out_start - end_xpos))
|
|
|
3765 {
|
|
|
3766 add_margin_blank (dl, odb, w, end_xpos, out_start - end_xpos,
|
|
|
3767 RIGHT_GLYPHS);
|
|
|
3768 }
|
|
|
3769
|
|
|
3770 /* Finally, add the outside margin glyphs. */
|
|
|
3771 if (out_cnt)
|
|
|
3772 {
|
|
|
3773 add_margin_runes (dl, odb, out_start, out_cnt, GL_OUTSIDE_MARGIN,
|
|
|
3774 RIGHT_GLYPHS, window);
|
|
|
3775 }
|
|
|
3776 }
|
|
|
3777
|
|
|
3778
|
|
|
3779 /***************************************************************************/
|
|
|
3780 /* */
|
|
|
3781 /* modeline routines */
|
|
|
3782 /* */
|
|
|
3783 /***************************************************************************/
|
|
|
3784
|
|
438
|
3785 /* This function is also used in frame.c by `generate_title_string' */
|
|
|
3786 void
|
|
|
3787 generate_formatted_string_db (Lisp_Object format_str, Lisp_Object result_str,
|
|
|
3788 struct window *w, struct display_line *dl,
|
|
|
3789 struct display_block *db, face_index findex,
|
|
|
3790 int min_pixpos, int max_pixpos, int type)
|
|
|
3791 {
|
|
|
3792 struct frame *f = XFRAME (w->frame);
|
|
|
3793 struct device *d = XDEVICE (f->device);
|
|
|
3794
|
|
|
3795 pos_data data;
|
|
|
3796 int c_pixpos;
|
|
|
3797 Charcount offset = 0;
|
|
|
3798
|
|
|
3799 xzero (data);
|
|
|
3800 data.d = d;
|
|
|
3801 data.db = db;
|
|
|
3802 data.dl = dl;
|
|
|
3803 data.findex = findex;
|
|
|
3804 data.pixpos = min_pixpos;
|
|
|
3805 data.max_pixpos = max_pixpos;
|
|
|
3806 data.cursor_type = NO_CURSOR;
|
|
|
3807 data.last_charset = Qunbound;
|
|
|
3808 data.last_findex = DEFAULT_INDEX;
|
|
|
3809 data.result_str = result_str;
|
|
|
3810 data.is_modeline = 1;
|
|
|
3811 data.string = Qnil;
|
|
793
|
3812 data.window = wrap_window (w);
|
|
438
|
3813
|
|
|
3814 Dynarr_reset (formatted_string_extent_dynarr);
|
|
|
3815 Dynarr_reset (formatted_string_extent_start_dynarr);
|
|
|
3816 Dynarr_reset (formatted_string_extent_end_dynarr);
|
|
|
3817
|
|
|
3818 /* result_str is nil when we're building a frame or icon title. Otherwise,
|
|
|
3819 we're building a modeline, so the offset starts at the modeline
|
|
442
|
3820 horizontal scrolling amount */
|
|
438
|
3821 if (! NILP (result_str))
|
|
|
3822 offset = w->modeline_hscroll;
|
|
|
3823 generate_fstring_runes (w, &data, 0, 0, -1, format_str, 0,
|
|
|
3824 max_pixpos - min_pixpos, findex, type, &offset,
|
|
|
3825 Qnil);
|
|
|
3826
|
|
|
3827 if (Dynarr_length (db->runes))
|
|
|
3828 {
|
|
|
3829 struct rune *rb =
|
|
|
3830 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
3831 c_pixpos = rb->xpos + rb->width;
|
|
|
3832 }
|
|
|
3833 else
|
|
|
3834 c_pixpos = min_pixpos;
|
|
|
3835
|
|
|
3836 /* If we don't reach the right side of the window, add a blank rune
|
|
|
3837 to make up the difference. This usually only occurs if the
|
|
|
3838 modeline face is using a proportional width font or a fixed width
|
|
|
3839 font of a different size from the default face font. */
|
|
|
3840
|
|
|
3841 if (c_pixpos < max_pixpos)
|
|
|
3842 {
|
|
|
3843 data.pixpos = c_pixpos;
|
|
|
3844 data.blank_width = max_pixpos - data.pixpos;
|
|
|
3845
|
|
|
3846 add_blank_rune (&data, NULL, 0);
|
|
|
3847 }
|
|
|
3848
|
|
|
3849 /* Now create the result string and frob the extents into it. */
|
|
|
3850 if (!NILP (result_str))
|
|
|
3851 {
|
|
|
3852 int elt;
|
|
|
3853 Bytecount len;
|
|
867
|
3854 Ibyte *strdata;
|
|
438
|
3855 struct buffer *buf = XBUFFER (WINDOW_BUFFER (w));
|
|
|
3856
|
|
442
|
3857 in_modeline_generation = 1;
|
|
|
3858
|
|
771
|
3859 sledgehammer_check_ascii_begin (result_str);
|
|
438
|
3860 detach_all_extents (result_str);
|
|
793
|
3861 resize_string (result_str, -1,
|
|
438
|
3862 data.bytepos - XSTRING_LENGTH (result_str));
|
|
|
3863
|
|
|
3864 strdata = XSTRING_DATA (result_str);
|
|
|
3865
|
|
|
3866 for (elt = 0, len = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
3867 {
|
|
|
3868 if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
|
|
|
3869 {
|
|
867
|
3870 len += (set_itext_ichar
|
|
438
|
3871 (strdata + len, Dynarr_atp (db->runes,
|
|
|
3872 elt)->object.chr.ch));
|
|
|
3873 }
|
|
|
3874 }
|
|
|
3875
|
|
771
|
3876 init_string_ascii_begin (result_str);
|
|
|
3877 bump_string_modiff (result_str);
|
|
|
3878 sledgehammer_check_ascii_begin (result_str);
|
|
|
3879
|
|
438
|
3880 for (elt = 0; elt < Dynarr_length (formatted_string_extent_dynarr);
|
|
|
3881 elt++)
|
|
|
3882 {
|
|
|
3883 Lisp_Object extent = Qnil;
|
|
|
3884 Lisp_Object child;
|
|
|
3885
|
|
793
|
3886 extent = wrap_extent (Dynarr_at (formatted_string_extent_dynarr, elt));
|
|
438
|
3887 child = Fgethash (extent, buf->modeline_extent_table, Qnil);
|
|
|
3888 if (NILP (child))
|
|
|
3889 {
|
|
|
3890 child = Fmake_extent (Qnil, Qnil, result_str);
|
|
|
3891 Fputhash (extent, child, buf->modeline_extent_table);
|
|
|
3892 }
|
|
|
3893 Fset_extent_parent (child, extent);
|
|
|
3894 set_extent_endpoints
|
|
|
3895 (XEXTENT (child),
|
|
|
3896 Dynarr_at (formatted_string_extent_start_dynarr, elt),
|
|
|
3897 Dynarr_at (formatted_string_extent_end_dynarr, elt),
|
|
|
3898 result_str);
|
|
|
3899 }
|
|
442
|
3900
|
|
|
3901 in_modeline_generation = 0;
|
|
438
|
3902 }
|
|
|
3903 }
|
|
|
3904
|
|
428
|
3905 /* Ensure that the given display line DL accurately represents the
|
|
|
3906 modeline for the given window. */
|
|
|
3907 static void
|
|
|
3908 generate_modeline (struct window *w, struct display_line *dl, int type)
|
|
|
3909 {
|
|
|
3910 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3911 struct frame *f = XFRAME (w->frame);
|
|
|
3912 struct device *d = XDEVICE (f->device);
|
|
|
3913
|
|
|
3914 /* Unlike display line and rune pointers, this one can't change underneath
|
|
|
3915 our feet. */
|
|
|
3916 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
3917 int max_pixpos, min_pixpos, ypos_adj;
|
|
|
3918 Lisp_Object font_inst;
|
|
|
3919
|
|
|
3920 /* This will actually determine incorrect inside boundaries for the
|
|
|
3921 modeline since it ignores the margins. However being aware of this fact
|
|
|
3922 we never use those values anywhere so it doesn't matter. */
|
|
|
3923 dl->bounds = calculate_display_line_boundaries (w, 1);
|
|
|
3924
|
|
|
3925 /* We are generating a modeline. */
|
|
|
3926 dl->modeline = 1;
|
|
|
3927 dl->cursor_elt = -1;
|
|
|
3928
|
|
|
3929 /* Reset the runes on the modeline. */
|
|
|
3930 Dynarr_reset (db->runes);
|
|
|
3931
|
|
|
3932 if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
3933 {
|
|
|
3934 struct rune rb;
|
|
|
3935
|
|
|
3936 /* If there is a horizontal scrollbar, don't add anything. */
|
|
|
3937 if (window_scrollbar_height (w))
|
|
|
3938 return;
|
|
|
3939
|
|
|
3940 dl->ascent = DEVMETH (d, divider_height, ());
|
|
|
3941 dl->descent = 0;
|
|
|
3942 /* The modeline is at the bottom of the gutters. */
|
|
|
3943 dl->ypos = WINDOW_BOTTOM (w);
|
|
|
3944
|
|
|
3945 rb.findex = MODELINE_INDEX;
|
|
|
3946 rb.xpos = dl->bounds.left_out;
|
|
|
3947 rb.width = dl->bounds.right_out - dl->bounds.left_out;
|
|
826
|
3948 rb.charpos = 0;
|
|
428
|
3949 rb.endpos = 0;
|
|
|
3950 rb.type = RUNE_HLINE;
|
|
|
3951 rb.object.hline.thickness = 1;
|
|
|
3952 rb.object.hline.yoffset = 0;
|
|
|
3953 rb.cursor_type = NO_CURSOR;
|
|
|
3954
|
|
|
3955 if (!EQ (Qzero, w->modeline_shadow_thickness)
|
|
|
3956 && FRAME_WIN_P (f))
|
|
|
3957 {
|
|
|
3958 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3959
|
|
|
3960 dl->ypos -= shadow_thickness;
|
|
|
3961 rb.xpos += shadow_thickness;
|
|
|
3962 rb.width -= 2 * shadow_thickness;
|
|
|
3963 }
|
|
|
3964
|
|
|
3965 Dynarr_add (db->runes, rb);
|
|
|
3966 return;
|
|
|
3967 }
|
|
|
3968
|
|
|
3969 /* !!#### not right; needs to compute the max height of
|
|
|
3970 all the charsets */
|
|
|
3971 font_inst = WINDOW_FACE_CACHEL_FONT (w, MODELINE_INDEX, Vcharset_ascii);
|
|
|
3972
|
|
|
3973 dl->ascent = XFONT_INSTANCE (font_inst)->ascent;
|
|
|
3974 dl->descent = XFONT_INSTANCE (font_inst)->descent;
|
|
|
3975
|
|
|
3976 min_pixpos = dl->bounds.left_out;
|
|
|
3977 max_pixpos = dl->bounds.right_out;
|
|
|
3978
|
|
|
3979 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
3980 {
|
|
|
3981 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3982
|
|
|
3983 ypos_adj = shadow_thickness;
|
|
|
3984 min_pixpos += shadow_thickness;
|
|
|
3985 max_pixpos -= shadow_thickness;
|
|
|
3986 }
|
|
|
3987 else
|
|
|
3988 ypos_adj = 0;
|
|
|
3989
|
|
|
3990 generate_formatted_string_db (b->modeline_format,
|
|
|
3991 b->generated_modeline_string, w, dl, db,
|
|
|
3992 MODELINE_INDEX, min_pixpos, max_pixpos, type);
|
|
|
3993
|
|
|
3994 /* The modeline is at the bottom of the gutters. We have to wait to
|
|
|
3995 set this until we've generated the modeline in order to account
|
|
|
3996 for any embedded faces. */
|
|
|
3997 dl->ypos = WINDOW_BOTTOM (w) - dl->descent - ypos_adj;
|
|
|
3998 }
|
|
|
3999
|
|
|
4000 static Charcount
|
|
867
|
4001 add_string_to_fstring_db_runes (pos_data *data, const Ibyte *str,
|
|
771
|
4002 Charcount pos, Charcount min_pos,
|
|
|
4003 Charcount max_pos)
|
|
428
|
4004 {
|
|
|
4005 /* This function has been Mule-ized. */
|
|
|
4006 Charcount end;
|
|
867
|
4007 const Ibyte *cur_pos = str;
|
|
428
|
4008 struct display_block *db = data->db;
|
|
|
4009
|
|
|
4010 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
4011 while (Dynarr_length (db->runes) < pos)
|
|
|
4012 add_blank_rune (data, NULL, 0);
|
|
|
4013
|
|
|
4014 end = (Dynarr_length (db->runes) +
|
|
442
|
4015 bytecount_to_charcount (str, strlen ((const char *) str)));
|
|
428
|
4016 if (max_pos != -1)
|
|
|
4017 end = min (max_pos, end);
|
|
|
4018
|
|
|
4019 while (pos < end && *cur_pos)
|
|
|
4020 {
|
|
867
|
4021 const Ibyte *old_cur_pos = cur_pos;
|
|
428
|
4022 int succeeded;
|
|
|
4023
|
|
867
|
4024 data->ch = itext_ichar (cur_pos);
|
|
|
4025 succeeded = (add_ichar_rune (data) != ADD_FAILED);
|
|
|
4026 INC_IBYTEPTR (cur_pos);
|
|
428
|
4027 if (succeeded)
|
|
|
4028 {
|
|
|
4029 pos++;
|
|
|
4030 data->modeline_charpos++;
|
|
|
4031 data->bytepos += cur_pos - old_cur_pos;
|
|
|
4032 }
|
|
|
4033 }
|
|
|
4034
|
|
|
4035 while (Dynarr_length (db->runes) < min_pos &&
|
|
|
4036 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
4037 add_blank_rune (data, NULL, 0);
|
|
|
4038
|
|
|
4039 return Dynarr_length (db->runes);
|
|
|
4040 }
|
|
|
4041
|
|
|
4042 /* #### Urk! Should also handle begin-glyphs and end-glyphs in
|
|
|
4043 modeline extents. */
|
|
|
4044 static Charcount
|
|
|
4045 add_glyph_to_fstring_db_runes (pos_data *data, Lisp_Object glyph,
|
|
2286
|
4046 Charcount pos, Charcount UNUSED (min_pos),
|
|
438
|
4047 Charcount max_pos, Lisp_Object extent)
|
|
428
|
4048 {
|
|
|
4049 /* This function has been Mule-ized. */
|
|
|
4050 Charcount end;
|
|
|
4051 struct display_block *db = data->db;
|
|
|
4052 struct glyph_block gb;
|
|
|
4053
|
|
|
4054 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
4055 while (Dynarr_length (db->runes) < pos)
|
|
|
4056 add_blank_rune (data, NULL, 0);
|
|
|
4057
|
|
|
4058 end = Dynarr_length (db->runes) + 1;
|
|
|
4059 if (max_pos != -1)
|
|
|
4060 end = min (max_pos, end);
|
|
|
4061
|
|
|
4062 gb.glyph = glyph;
|
|
438
|
4063 gb.extent = extent;
|
|
428
|
4064 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
4065 pos++;
|
|
|
4066
|
|
|
4067 while (Dynarr_length (db->runes) < pos &&
|
|
|
4068 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
4069 add_blank_rune (data, NULL, 0);
|
|
|
4070
|
|
|
4071 return Dynarr_length (db->runes);
|
|
|
4072 }
|
|
|
4073
|
|
|
4074 /* If max_pos is == -1, it is considered to be infinite. The same is
|
|
|
4075 true of max_pixsize. */
|
|
|
4076 #define SET_CURRENT_MODE_CHARS_PIXSIZE \
|
|
|
4077 if (Dynarr_length (data->db->runes)) \
|
|
|
4078 cur_pixsize = data->pixpos - Dynarr_atp (data->db->runes, 0)->xpos; \
|
|
|
4079 else \
|
|
|
4080 cur_pixsize = 0;
|
|
|
4081
|
|
|
4082 /* Note that this function does "positions" in terms of characters and
|
|
|
4083 not in terms of columns. This is necessary to make the formatting
|
|
|
4084 work correctly when proportional width fonts are used in the
|
|
|
4085 modeline. */
|
|
|
4086 static Charcount
|
|
|
4087 generate_fstring_runes (struct window *w, pos_data *data, Charcount pos,
|
|
|
4088 Charcount min_pos, Charcount max_pos,
|
|
|
4089 Lisp_Object elt, int depth, int max_pixsize,
|
|
438
|
4090 face_index findex, int type, Charcount *offset,
|
|
|
4091 Lisp_Object cur_ext)
|
|
428
|
4092 {
|
|
|
4093 /* This function has been Mule-ized. */
|
|
|
4094 /* #### The other losing things in this function are:
|
|
|
4095
|
|
|
4096 -- C zero-terminated-string lossage.
|
|
|
4097 -- Non-printable characters should be converted into something
|
|
|
4098 appropriate (e.g. ^F) instead of blindly being printed anyway.
|
|
|
4099 */
|
|
|
4100
|
|
|
4101 tail_recurse:
|
|
|
4102 if (depth > 10)
|
|
|
4103 goto invalid;
|
|
|
4104
|
|
|
4105 depth++;
|
|
|
4106
|
|
|
4107 if (STRINGP (elt))
|
|
|
4108 {
|
|
|
4109 /* A string. Add to the display line and check for %-constructs
|
|
|
4110 within it. */
|
|
|
4111
|
|
2552
|
4112 Ibyte *this_str = XSTRING_DATA (elt);
|
|
|
4113
|
|
|
4114 while ((pos < max_pos || max_pos == -1) && *this_str)
|
|
428
|
4115 {
|
|
2552
|
4116 Ibyte *last = this_str;
|
|
|
4117
|
|
|
4118 while (*this_str && *this_str != '%')
|
|
|
4119 this_str++;
|
|
|
4120
|
|
|
4121 if (this_str != last)
|
|
428
|
4122 {
|
|
438
|
4123 /* No %-construct */
|
|
428
|
4124 Charcount size =
|
|
2552
|
4125 bytecount_to_charcount (last, this_str - last);
|
|
438
|
4126
|
|
|
4127 if (size <= *offset)
|
|
|
4128 *offset -= size;
|
|
|
4129 else
|
|
|
4130 {
|
|
|
4131 Charcount tmp_max = (max_pos == -1 ? pos + size - *offset :
|
|
|
4132 min (pos + size - *offset, max_pos));
|
|
867
|
4133 const Ibyte *tmp_last = itext_n_addr (last, *offset);
|
|
438
|
4134
|
|
|
4135 pos = add_string_to_fstring_db_runes (data, tmp_last,
|
|
|
4136 pos, pos, tmp_max);
|
|
|
4137 *offset = 0;
|
|
|
4138 }
|
|
428
|
4139 }
|
|
2552
|
4140 else /* *this_str == '%' */
|
|
428
|
4141 {
|
|
|
4142 Charcount spec_width = 0;
|
|
|
4143
|
|
2552
|
4144 this_str++; /* skip over '%' */
|
|
428
|
4145
|
|
|
4146 /* We can't allow -ve args due to the "%-" construct.
|
|
|
4147 * Argument specifies minwidth but not maxwidth
|
|
|
4148 * (maxwidth can be specified by
|
|
|
4149 * (<negative-number> . <stuff>) modeline elements)
|
|
|
4150 */
|
|
2552
|
4151 while (isdigit (*this_str))
|
|
428
|
4152 {
|
|
2552
|
4153 spec_width = spec_width * 10 + (*this_str - '0');
|
|
|
4154 this_str++;
|
|
428
|
4155 }
|
|
|
4156 spec_width += pos;
|
|
|
4157
|
|
2552
|
4158 if (*this_str == 'M')
|
|
428
|
4159 {
|
|
|
4160 pos = generate_fstring_runes (w, data, pos, spec_width,
|
|
|
4161 max_pos, Vglobal_mode_string,
|
|
|
4162 depth, max_pixsize, findex,
|
|
438
|
4163 type, offset, cur_ext);
|
|
428
|
4164 }
|
|
2552
|
4165 else if (*this_str == '-')
|
|
428
|
4166 {
|
|
|
4167 Charcount num_to_add;
|
|
|
4168
|
|
|
4169 if (max_pixsize < 0)
|
|
|
4170 num_to_add = 0;
|
|
|
4171 else if (max_pos != -1)
|
|
|
4172 num_to_add = max_pos - pos;
|
|
|
4173 else
|
|
|
4174 {
|
|
|
4175 int cur_pixsize;
|
|
|
4176 int dash_pixsize;
|
|
867
|
4177 Ibyte ch = '-';
|
|
428
|
4178 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
4179
|
|
|
4180 dash_pixsize =
|
|
|
4181 redisplay_text_width_string (w, findex, &ch, Qnil, 0,
|
|
|
4182 1);
|
|
3094
|
4183
|
|
|
4184 if (dash_pixsize == 0)
|
|
|
4185 num_to_add = 0;
|
|
|
4186 else {
|
|
|
4187 num_to_add = (max_pixsize - cur_pixsize) / dash_pixsize;
|
|
|
4188 num_to_add++;
|
|
|
4189 }
|
|
428
|
4190 }
|
|
|
4191
|
|
|
4192 while (num_to_add--)
|
|
|
4193 pos = add_string_to_fstring_db_runes
|
|
867
|
4194 (data, (const Ibyte *) "-", pos, pos, max_pos);
|
|
428
|
4195 }
|
|
2552
|
4196 else if (*this_str != 0)
|
|
428
|
4197 {
|
|
2552
|
4198 Ichar ch = itext_ichar (this_str);
|
|
867
|
4199 Ibyte *str;
|
|
438
|
4200 Charcount size;
|
|
|
4201
|
|
428
|
4202 decode_mode_spec (w, ch, type);
|
|
|
4203
|
|
867
|
4204 str = Dynarr_atp (mode_spec_ibyte_string, 0);
|
|
438
|
4205 size = bytecount_to_charcount
|
|
|
4206 /* Skip the null character added by `decode_mode_spec' */
|
|
867
|
4207 (str, Dynarr_length (mode_spec_ibyte_string)) - 1;
|
|
438
|
4208
|
|
|
4209 if (size <= *offset)
|
|
|
4210 *offset -= size;
|
|
|
4211 else
|
|
|
4212 {
|
|
867
|
4213 const Ibyte *tmp_str = itext_n_addr (str, *offset);
|
|
438
|
4214
|
|
440
|
4215 /* #### NOTE: I don't understand why a tmp_max is not
|
|
438
|
4216 computed and used here as in the plain string case
|
|
|
4217 above. -- dv */
|
|
|
4218 pos = add_string_to_fstring_db_runes (data, tmp_str,
|
|
|
4219 pos, pos,
|
|
|
4220 max_pos);
|
|
|
4221 *offset = 0;
|
|
|
4222 }
|
|
428
|
4223 }
|
|
|
4224
|
|
2552
|
4225 /* NOT this_str++. There could be any sort of character at
|
|
428
|
4226 the current position. */
|
|
2552
|
4227 INC_IBYTEPTR (this_str);
|
|
428
|
4228 }
|
|
|
4229
|
|
|
4230 if (max_pixsize > 0)
|
|
|
4231 {
|
|
|
4232 int cur_pixsize;
|
|
|
4233 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
4234
|
|
|
4235 if (cur_pixsize >= max_pixsize)
|
|
|
4236 break;
|
|
|
4237 }
|
|
|
4238 }
|
|
|
4239 }
|
|
|
4240 else if (SYMBOLP (elt))
|
|
|
4241 {
|
|
|
4242 /* A symbol: process the value of the symbol recursively
|
|
|
4243 as if it appeared here directly. */
|
|
|
4244 Lisp_Object tem = symbol_value_in_buffer (elt, w->buffer);
|
|
|
4245
|
|
|
4246 if (!UNBOUNDP (tem))
|
|
|
4247 {
|
|
438
|
4248 /* If value is a string, output that string literally:
|
|
428
|
4249 don't check for % within it. */
|
|
|
4250 if (STRINGP (tem))
|
|
|
4251 {
|
|
867
|
4252 Ibyte *str = XSTRING_DATA (tem);
|
|
826
|
4253 Charcount size = string_char_length (tem);
|
|
438
|
4254
|
|
|
4255 if (size <= *offset)
|
|
|
4256 *offset -= size;
|
|
|
4257 else
|
|
|
4258 {
|
|
867
|
4259 const Ibyte *tmp_str = itext_n_addr (str, *offset);
|
|
438
|
4260
|
|
440
|
4261 /* #### NOTE: I don't understand why a tmp_max is not
|
|
438
|
4262 computed and used here as in the plain string case
|
|
|
4263 above. -- dv */
|
|
|
4264 pos = add_string_to_fstring_db_runes (data, tmp_str, pos,
|
|
|
4265 min_pos, max_pos);
|
|
|
4266 *offset = 0;
|
|
|
4267 }
|
|
428
|
4268 }
|
|
|
4269 /* Give up right away for nil or t. */
|
|
|
4270 else if (!EQ (tem, elt))
|
|
|
4271 {
|
|
|
4272 elt = tem;
|
|
|
4273 goto tail_recurse;
|
|
|
4274 }
|
|
|
4275 }
|
|
|
4276 }
|
|
|
4277 else if (GENERIC_SPECIFIERP (elt))
|
|
|
4278 {
|
|
|
4279 Lisp_Object window, tem;
|
|
793
|
4280 window = wrap_window (w);
|
|
428
|
4281 tem = specifier_instance_no_quit (elt, Qunbound, window,
|
|
793
|
4282 ERROR_ME_DEBUG_WARN, 0, Qzero);
|
|
428
|
4283 if (!UNBOUNDP (tem))
|
|
|
4284 {
|
|
|
4285 elt = tem;
|
|
|
4286 goto tail_recurse;
|
|
|
4287 }
|
|
|
4288 }
|
|
|
4289 else if (CONSP (elt))
|
|
|
4290 {
|
|
|
4291 /* A cons cell: four distinct cases.
|
|
438
|
4292 * - If first element is a string or a cons, process all the elements
|
|
|
4293 * and effectively concatenate them.
|
|
|
4294 * - If first element is a negative number, truncate displaying cdr to
|
|
|
4295 * at most that many characters. If positive, pad (with spaces)
|
|
|
4296 * to at least that many characters.
|
|
771
|
4297 * - If first element is another symbol or a boolean specifier, process
|
|
|
4298 * the cadr or caddr recursively according to whether the symbol's
|
|
|
4299 * value or specifier's instance is non-nil or nil.
|
|
|
4300 * - If first element is , process the cadr or caddr
|
|
|
4301 * recursively according to whether the instance of the specifier in
|
|
|
4302 * the modeline's window is non-nil or nil.
|
|
442
|
4303 * - If first element is an extent, process the cdr recursively
|
|
|
4304 * and handle the extent's face.
|
|
428
|
4305 */
|
|
438
|
4306
|
|
428
|
4307 Lisp_Object car, tem;
|
|
|
4308
|
|
|
4309 car = XCAR (elt);
|
|
771
|
4310 if (SYMBOLP (car) || BOOLEAN_SPECIFIERP (car))
|
|
438
|
4311 {
|
|
|
4312 elt = XCDR (elt);
|
|
|
4313 if (!CONSP (elt))
|
|
|
4314 goto invalid;
|
|
|
4315
|
|
771
|
4316 if (SYMBOLP (car))
|
|
|
4317 tem = symbol_value_in_buffer (car, w->buffer);
|
|
|
4318 else
|
|
|
4319 tem = specifier_instance_no_quit (car, Qunbound, wrap_window (w),
|
|
793
|
4320 ERROR_ME_DEBUG_WARN, 0, Qzero);
|
|
438
|
4321 /* elt is now the cdr, and we know it is a cons cell.
|
|
|
4322 Use its car if CAR has a non-nil value. */
|
|
771
|
4323 if (!UNBOUNDP (tem) && !NILP (tem))
|
|
438
|
4324 {
|
|
771
|
4325 elt = XCAR (elt);
|
|
|
4326 goto tail_recurse;
|
|
438
|
4327 }
|
|
771
|
4328 /* Symbol's value or specifier's instance is nil or unbound
|
|
438
|
4329 * Get the cddr of the original list
|
|
|
4330 * and if possible find the caddr and use that.
|
|
|
4331 */
|
|
|
4332 elt = XCDR (elt);
|
|
|
4333 if (NILP (elt))
|
|
|
4334 ;
|
|
|
4335 else if (!CONSP (elt))
|
|
|
4336 goto invalid;
|
|
|
4337 else
|
|
|
4338 {
|
|
|
4339 elt = XCAR (elt);
|
|
|
4340 goto tail_recurse;
|
|
|
4341 }
|
|
|
4342 }
|
|
428
|
4343 else if (INTP (car))
|
|
|
4344 {
|
|
|
4345 Charcount lim = XINT (car);
|
|
|
4346
|
|
|
4347 elt = XCDR (elt);
|
|
|
4348
|
|
|
4349 if (lim < 0)
|
|
|
4350 {
|
|
|
4351 /* Negative int means reduce maximum width.
|
|
|
4352 * DO NOT change MIN_PIXPOS here!
|
|
|
4353 * (20 -10 . foo) should truncate foo to 10 col
|
|
|
4354 * and then pad to 20.
|
|
|
4355 */
|
|
|
4356 if (max_pos == -1)
|
|
|
4357 max_pos = pos - lim;
|
|
|
4358 else
|
|
|
4359 max_pos = min (max_pos, pos - lim);
|
|
|
4360 }
|
|
|
4361 else if (lim > 0)
|
|
|
4362 {
|
|
|
4363 /* Padding specified. Don't let it be more than
|
|
|
4364 * current maximum.
|
|
|
4365 */
|
|
|
4366 lim += pos;
|
|
|
4367 if (max_pos != -1 && lim > max_pos)
|
|
|
4368 lim = max_pos;
|
|
|
4369 /* If that's more padding than already wanted, queue it.
|
|
|
4370 * But don't reduce padding already specified even if
|
|
|
4371 * that is beyond the current truncation point.
|
|
|
4372 */
|
|
|
4373 if (lim > min_pos)
|
|
|
4374 min_pos = lim;
|
|
|
4375 }
|
|
|
4376 goto tail_recurse;
|
|
|
4377 }
|
|
|
4378 else if (STRINGP (car) || CONSP (car))
|
|
|
4379 {
|
|
|
4380 int limit = 50;
|
|
438
|
4381
|
|
428
|
4382 /* LIMIT is to protect against circular lists. */
|
|
|
4383 while (CONSP (elt) && --limit > 0
|
|
|
4384 && (pos < max_pos || max_pos == -1))
|
|
|
4385 {
|
|
|
4386 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
438
|
4387 XCAR (elt), depth, max_pixsize,
|
|
|
4388 findex, type, offset, cur_ext);
|
|
428
|
4389 elt = XCDR (elt);
|
|
|
4390 }
|
|
|
4391 }
|
|
|
4392 else if (EXTENTP (car))
|
|
|
4393 {
|
|
|
4394 struct extent *ext = XEXTENT (car);
|
|
|
4395
|
|
|
4396 if (EXTENT_LIVE_P (ext))
|
|
|
4397 {
|
|
|
4398 face_index old_findex = data->findex;
|
|
|
4399 Lisp_Object face;
|
|
|
4400 Lisp_Object font_inst;
|
|
|
4401 face_index new_findex;
|
|
|
4402 Bytecount start = data->bytepos;
|
|
|
4403
|
|
|
4404 face = extent_face (ext);
|
|
|
4405 if (FACEP (face))
|
|
|
4406 {
|
|
|
4407 /* #### needs to merge faces, sigh */
|
|
|
4408 /* #### needs to handle list of faces */
|
|
|
4409 new_findex = get_builtin_face_cache_index (w, face);
|
|
|
4410 /* !!#### not right; needs to compute the max height of
|
|
|
4411 all the charsets */
|
|
|
4412 font_inst = WINDOW_FACE_CACHEL_FONT (w, new_findex,
|
|
|
4413 Vcharset_ascii);
|
|
|
4414
|
|
|
4415 data->dl->ascent = max (data->dl->ascent,
|
|
|
4416 XFONT_INSTANCE (font_inst)->ascent);
|
|
|
4417 data->dl->descent = max (data->dl->descent,
|
|
|
4418 XFONT_INSTANCE (font_inst)->
|
|
|
4419 descent);
|
|
|
4420 }
|
|
|
4421 else
|
|
|
4422 new_findex = old_findex;
|
|
|
4423
|
|
|
4424 data->findex = new_findex;
|
|
|
4425 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
|
4426 XCDR (elt), depth - 1,
|
|
438
|
4427 max_pixsize, new_findex, type,
|
|
|
4428 offset, car);
|
|
428
|
4429 data->findex = old_findex;
|
|
|
4430 Dynarr_add (formatted_string_extent_dynarr, ext);
|
|
|
4431 Dynarr_add (formatted_string_extent_start_dynarr, start);
|
|
|
4432 Dynarr_add (formatted_string_extent_end_dynarr, data->bytepos);
|
|
|
4433 }
|
|
|
4434 }
|
|
|
4435 }
|
|
|
4436 else if (GLYPHP (elt))
|
|
|
4437 {
|
|
438
|
4438 /* Glyphs are considered as one character with respect to the modeline
|
|
|
4439 horizontal scrolling facility. -- dv */
|
|
|
4440 if (*offset > 0)
|
|
|
4441 *offset -= 1;
|
|
|
4442 else
|
|
|
4443 pos = add_glyph_to_fstring_db_runes (data, elt, pos, pos, max_pos,
|
|
|
4444 cur_ext);
|
|
428
|
4445 }
|
|
|
4446 else
|
|
|
4447 {
|
|
|
4448 invalid:
|
|
438
|
4449 {
|
|
|
4450 char *str = GETTEXT ("*invalid*");
|
|
|
4451 Charcount size = (Charcount) strlen (str); /* is this ok ?? -- dv */
|
|
|
4452
|
|
|
4453 if (size <= *offset)
|
|
|
4454 *offset -= size;
|
|
|
4455 else
|
|
|
4456 {
|
|
867
|
4457 const Ibyte *tmp_str =
|
|
|
4458 itext_n_addr ((const Ibyte *) str, *offset);
|
|
438
|
4459
|
|
440
|
4460 /* #### NOTE: I don't understand why a tmp_max is not computed and
|
|
438
|
4461 used here as in the plain string case above. -- dv */
|
|
|
4462 pos = add_string_to_fstring_db_runes (data, tmp_str, pos,
|
|
|
4463 min_pos, max_pos);
|
|
|
4464 *offset = 0;
|
|
|
4465 }
|
|
|
4466 }
|
|
428
|
4467 }
|
|
|
4468
|
|
|
4469 if (min_pos > pos)
|
|
|
4470 {
|
|
867
|
4471 add_string_to_fstring_db_runes (data, (const Ibyte *) "", pos,
|
|
438
|
4472 min_pos, -1);
|
|
428
|
4473 }
|
|
|
4474
|
|
|
4475 return pos;
|
|
|
4476 }
|
|
|
4477
|
|
|
4478 /* Update just the modeline. Assumes the desired display structs. If
|
|
|
4479 they do not have a modeline block, it does nothing. */
|
|
|
4480 static void
|
|
|
4481 regenerate_modeline (struct window *w)
|
|
|
4482 {
|
|
|
4483 display_line_dynarr *dla = window_display_lines (w, DESIRED_DISP);
|
|
|
4484
|
|
|
4485 if (!Dynarr_length (dla) || !Dynarr_atp (dla, 0)->modeline)
|
|
|
4486 return;
|
|
|
4487 else
|
|
|
4488 {
|
|
|
4489 generate_modeline (w, Dynarr_atp (dla, 0), DESIRED_DISP);
|
|
|
4490 redisplay_update_line (w, 0, 0, 0);
|
|
|
4491 }
|
|
|
4492 }
|
|
|
4493
|
|
|
4494 /* Make sure that modeline display line is present in the given
|
|
|
4495 display structs if the window has a modeline and update that
|
|
|
4496 line. Returns true if a modeline was needed. */
|
|
|
4497 static int
|
|
|
4498 ensure_modeline_generated (struct window *w, int type)
|
|
|
4499 {
|
|
|
4500 int need_modeline;
|
|
|
4501
|
|
|
4502 /* minibuffer windows don't have modelines */
|
|
|
4503 if (MINI_WINDOW_P (w))
|
|
|
4504 need_modeline = 0;
|
|
|
4505 /* windows which haven't had it turned off do */
|
|
|
4506 else if (WINDOW_HAS_MODELINE_P (w))
|
|
|
4507 need_modeline = 1;
|
|
|
4508 /* windows which have it turned off don't have a divider if there is
|
|
|
4509 a horizontal scrollbar */
|
|
|
4510 else if (window_scrollbar_height (w))
|
|
|
4511 need_modeline = 0;
|
|
|
4512 /* and in this case there is none */
|
|
|
4513 else
|
|
|
4514 need_modeline = 1;
|
|
|
4515
|
|
|
4516 if (need_modeline)
|
|
|
4517 {
|
|
|
4518 display_line_dynarr *dla;
|
|
|
4519
|
|
|
4520 dla = window_display_lines (w, type);
|
|
|
4521
|
|
|
4522 /* We don't care if there is a display line which is not
|
|
|
4523 currently a modeline because it is definitely going to become
|
|
|
4524 one if we have gotten to this point. */
|
|
|
4525 if (Dynarr_length (dla) == 0)
|
|
|
4526 {
|
|
|
4527 if (Dynarr_largest (dla) > 0)
|
|
800
|
4528 Dynarr_increment (dla);
|
|
428
|
4529 else
|
|
|
4530 {
|
|
|
4531 struct display_line modeline;
|
|
|
4532 xzero (modeline);
|
|
|
4533 Dynarr_add (dla, modeline);
|
|
|
4534 }
|
|
|
4535 }
|
|
|
4536
|
|
|
4537 /* If we're adding a new place marker go ahead and generate the
|
|
|
4538 modeline so that it is available for use by
|
|
|
4539 window_modeline_height. */
|
|
|
4540 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
4541 }
|
|
|
4542
|
|
|
4543 return need_modeline;
|
|
|
4544 }
|
|
|
4545
|
|
|
4546 /* #### Kludge or not a kludge. I tend towards the former. */
|
|
|
4547 int
|
|
|
4548 real_current_modeline_height (struct window *w)
|
|
|
4549 {
|
|
|
4550 Fset_marker (w->start[CMOTION_DISP], w->start[CURRENT_DISP], w->buffer);
|
|
|
4551 Fset_marker (w->pointm[CMOTION_DISP], w->pointm[CURRENT_DISP], w->buffer);
|
|
|
4552
|
|
|
4553 if (ensure_modeline_generated (w, CMOTION_DISP))
|
|
|
4554 {
|
|
|
4555 display_line_dynarr *dla = window_display_lines (w, CMOTION_DISP);
|
|
|
4556
|
|
|
4557 if (Dynarr_length (dla))
|
|
|
4558 {
|
|
|
4559 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
4560 return (Dynarr_atp (dla, 0)->ascent +
|
|
|
4561 Dynarr_atp (dla, 0)->descent);
|
|
|
4562 }
|
|
|
4563 }
|
|
|
4564 return 0;
|
|
|
4565 }
|
|
|
4566
|
|
|
4567
|
|
|
4568 /***************************************************************************/
|
|
819
|
4569 /* */
|
|
826
|
4570 /* displayable string routines */
|
|
819
|
4571 /* */
|
|
428
|
4572 /***************************************************************************/
|
|
|
4573
|
|
|
4574 /* Given a position for a string in a window, ensure that the given
|
|
|
4575 display line DL accurately represents the text on a line starting
|
|
|
4576 at the given position.
|
|
|
4577
|
|
|
4578 Yes, this is duplicating the code of create_text_block, but it
|
|
|
4579 looked just too hard to change create_text_block to handle strings
|
|
|
4580 *and* buffers. We already make a distinction between the two
|
|
|
4581 elsewhere in the code so I think unifying them would require a
|
|
|
4582 complete MULE rewrite. Besides, the other distinction is that these
|
|
|
4583 functions cover text that the user *cannot edit* so we can remove
|
|
|
4584 everything to do with cursors, minibuffers etc. Eventually the
|
|
|
4585 modeline routines should be modified to use this code as it copes
|
|
|
4586 with many more types of display situation. */
|
|
|
4587
|
|
665
|
4588 static Charbpos
|
|
428
|
4589 create_string_text_block (struct window *w, Lisp_Object disp_string,
|
|
|
4590 struct display_line *dl,
|
|
826
|
4591 Charcount start_pos,
|
|
428
|
4592 prop_block_dynarr **prop,
|
|
|
4593 face_index default_face)
|
|
|
4594 {
|
|
|
4595 struct frame *f = XFRAME (w->frame);
|
|
|
4596 /* Note that a lot of the buffer controlled stuff has been left in
|
|
|
4597 because you might well want to make use of it (selective display
|
|
|
4598 etc), its just the buffer text that we do not use. However, it
|
|
|
4599 seems to be possible for buffer to be nil sometimes so protect
|
|
|
4600 against this case. */
|
|
|
4601 struct buffer *b = BUFFERP (w->buffer) ? XBUFFER (w->buffer) : 0;
|
|
|
4602 struct device *d = XDEVICE (f->device);
|
|
|
4603
|
|
|
4604 /* we're working with these a lot so precalculate them */
|
|
|
4605 Bytecount slen = XSTRING_LENGTH (disp_string);
|
|
826
|
4606 Bytecount byte_string_zv = slen;
|
|
|
4607 Bytecount byte_start_pos = string_index_char_to_byte (disp_string, start_pos);
|
|
428
|
4608
|
|
|
4609 pos_data data;
|
|
|
4610
|
|
|
4611 int truncate_win = b ? window_truncation_on (w) : 0;
|
|
|
4612
|
|
442
|
4613 /* We're going to ditch selective display for static text, it's an
|
|
|
4614 FSF thing and invisible extents are the way to go here.
|
|
|
4615 Implementing it also relies on a number of buffer-specific
|
|
428
|
4616 functions that we don't have the luxury of being able to use
|
|
|
4617 here. */
|
|
|
4618
|
|
|
4619 /* The variable ctl-arrow allows the user to specify what characters
|
|
|
4620 can actually be displayed and which octal should be used for.
|
|
|
4621 #### This variable should probably have some rethought done to
|
|
|
4622 it.
|
|
|
4623
|
|
|
4624 #### It would also be really nice if you could specify that
|
|
|
4625 the characters come out in hex instead of in octal. Mule
|
|
|
4626 does that by adding a ctl-hexa variable similar to ctl-arrow,
|
|
|
4627 but that's bogus -- we need a more general solution. I
|
|
|
4628 think you need to extend the concept of display tables
|
|
|
4629 into a more general conversion mechanism. Ideally you
|
|
|
4630 could specify a Lisp function that converts characters,
|
|
|
4631 but this violates the Second Golden Rule and besides would
|
|
|
4632 make things way way way way slow.
|
|
|
4633
|
|
|
4634 So instead, we extend the display-table concept, which was
|
|
|
4635 historically limited to 256-byte vectors, to one of the
|
|
|
4636 following:
|
|
|
4637
|
|
|
4638 a) A 256-entry vector, for backward compatibility;
|
|
|
4639 b) char-table, mapping characters to values;
|
|
|
4640 c) range-table, mapping ranges of characters to values;
|
|
|
4641 d) a list of the above.
|
|
|
4642
|
|
|
4643 The (d) option allows you to specify multiple display tables
|
|
|
4644 instead of just one. Each display table can specify conversions
|
|
|
4645 for some characters and leave others unchanged. The way the
|
|
|
4646 character gets displayed is determined by the first display table
|
|
|
4647 with a binding for that character. This way, you could call a
|
|
|
4648 function `enable-hex-display' that adds a hex display-table to
|
|
|
4649 the list of display tables for the current buffer.
|
|
|
4650
|
|
|
4651 #### ...not yet implemented... Also, we extend the concept of
|
|
|
4652 "mapping" to include a printf-like spec. Thus you can make all
|
|
|
4653 extended characters show up as hex with a display table like
|
|
|
4654 this:
|
|
|
4655
|
|
|
4656 #s(range-table data ((256 524288) (format "%x")))
|
|
|
4657
|
|
|
4658 Since more than one display table is possible, you have
|
|
|
4659 great flexibility in mapping ranges of characters. */
|
|
867
|
4660 Ichar printable_min = b ? (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
428
|
4661 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
4662 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
4663 ? 255 : 160)) : 255;
|
|
|
4664
|
|
|
4665 Lisp_Object face_dt, window_dt;
|
|
|
4666
|
|
|
4667 /* The text display block for this display line. */
|
|
|
4668 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
4669
|
|
|
4670 /* The first time through the main loop we need to force the glyph
|
|
|
4671 data to be updated. */
|
|
|
4672 int initial = 1;
|
|
|
4673
|
|
|
4674 /* Apparently the new extent_fragment_update returns an end position
|
|
|
4675 equal to the position passed in if there are no more runs to be
|
|
|
4676 displayed. */
|
|
|
4677 int no_more_frags = 0;
|
|
|
4678
|
|
|
4679 dl->used_prop_data = 0;
|
|
|
4680 dl->num_chars = 0;
|
|
442
|
4681 dl->line_continuation = 0;
|
|
428
|
4682
|
|
|
4683 /* set up faces to use for clearing areas, used by
|
|
|
4684 output_display_line */
|
|
|
4685 dl->default_findex = default_face;
|
|
|
4686 if (default_face)
|
|
|
4687 {
|
|
|
4688 dl->left_margin_findex = default_face;
|
|
|
4689 dl->right_margin_findex = default_face;
|
|
|
4690 }
|
|
|
4691 else
|
|
|
4692 {
|
|
434
|
4693 dl->left_margin_findex =
|
|
428
|
4694 get_builtin_face_cache_index (w, Vleft_margin_face);
|
|
434
|
4695 dl->right_margin_findex =
|
|
428
|
4696 get_builtin_face_cache_index (w, Vright_margin_face);
|
|
|
4697 }
|
|
|
4698
|
|
|
4699 xzero (data);
|
|
|
4700 data.ef = extent_fragment_new (disp_string, f);
|
|
|
4701
|
|
|
4702 /* These values are used by all of the rune addition routines. We add
|
|
|
4703 them to this structure for ease of passing. */
|
|
|
4704 data.d = d;
|
|
793
|
4705 data.window = wrap_window (w);
|
|
428
|
4706 data.db = db;
|
|
|
4707 data.dl = dl;
|
|
|
4708
|
|
826
|
4709 data.byte_charpos = byte_start_pos;
|
|
428
|
4710 data.pixpos = dl->bounds.left_in;
|
|
|
4711 data.last_charset = Qunbound;
|
|
|
4712 data.last_findex = default_face;
|
|
|
4713 data.result_str = Qnil;
|
|
|
4714 data.string = disp_string;
|
|
|
4715
|
|
|
4716 /* Set the right boundary adjusting it to take into account any end
|
|
|
4717 glyph. Save the width of the end glyph for later use. */
|
|
|
4718 data.max_pixpos = dl->bounds.right_in;
|
|
819
|
4719 data.max_pixpos -= data.end_glyph_width;
|
|
428
|
4720
|
|
|
4721 data.cursor_type = NO_CURSOR;
|
|
|
4722 data.cursor_x = -1;
|
|
|
4723
|
|
|
4724 data.start_col = 0;
|
|
|
4725 /* I don't think we want this, string areas should not scroll with
|
|
434
|
4726 the window
|
|
428
|
4727 data.start_col = w->hscroll;
|
|
826
|
4728 data.byte_start_col_enabled = (w->hscroll ? byte_start_pos : 0);
|
|
428
|
4729 */
|
|
826
|
4730 data.byte_start_col_enabled = 0;
|
|
428
|
4731 data.hscroll_glyph_width_adjust = 0;
|
|
|
4732
|
|
|
4733 /* We regenerate the line from the very beginning. */
|
|
|
4734 Dynarr_reset (db->runes);
|
|
|
4735
|
|
|
4736 /* Why is this less than or equal and not just less than? If the
|
|
|
4737 starting position is already equal to the maximum we can't add
|
|
|
4738 anything else, right? Wrong. We might still have a newline to
|
|
|
4739 add. A newline can use the room allocated for an end glyph since
|
|
|
4740 if we add it we know we aren't going to be adding any end
|
|
|
4741 glyph. */
|
|
|
4742
|
|
|
4743 /* #### Chuck -- I think this condition should be while (1).
|
|
|
4744 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
4745 and the begin-glyph ends exactly at the end of the window, the
|
|
|
4746 end-glyph and text might not be displayed. while (1) ensures
|
|
|
4747 that the loop terminates only when either (a) there is
|
|
|
4748 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
4749
|
|
|
4750 #### Also I think you need to ensure that the operation
|
|
|
4751 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
4752 can't get interrupted in the middle. If you run off the end
|
|
|
4753 of the line during that operation, then you keep accumulating
|
|
|
4754 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
4755 there's a begin glyph at a particular position and attempting
|
|
|
4756 to display that glyph results in window-end being hit and
|
|
|
4757 propagation data being generated, then the character at that
|
|
|
4758 position won't be displayed.
|
|
|
4759
|
|
|
4760 #### See also the comment after the end of this loop, below.
|
|
|
4761 */
|
|
|
4762 while (data.pixpos <= data.max_pixpos)
|
|
|
4763 {
|
|
|
4764 /* #### This check probably should not be necessary. */
|
|
826
|
4765 if (data.byte_charpos > byte_string_zv)
|
|
428
|
4766 {
|
|
|
4767 /* #### urk! More of this lossage! */
|
|
826
|
4768 data.byte_charpos--;
|
|
428
|
4769 goto done;
|
|
|
4770 }
|
|
|
4771
|
|
|
4772 /* Check for face changes. */
|
|
826
|
4773 if (initial || (!no_more_frags && data.byte_charpos == data.ef->end))
|
|
428
|
4774 {
|
|
819
|
4775 Lisp_Object last_glyph = Qnil;
|
|
|
4776 /* Deal with clipped glyphs that we have already displayed. */
|
|
|
4777 if (*prop && Dynarr_atp (*prop, 0)->type == PROP_GLYPH)
|
|
|
4778 {
|
|
|
4779 last_glyph = Dynarr_atp (*prop, 0)->data.p_glyph.glyph;
|
|
|
4780 Dynarr_free (*prop);
|
|
|
4781 *prop = 0;
|
|
|
4782 }
|
|
428
|
4783 /* Now compute the face and begin/end-glyph information. */
|
|
|
4784 data.findex =
|
|
793
|
4785 /* Remember that the extent-fragment routines deal in
|
|
826
|
4786 Bytexpos's. */
|
|
|
4787 extent_fragment_update (w, data.ef, data.byte_charpos, last_glyph);
|
|
428
|
4788 /* This is somewhat cheesy but the alternative is to
|
|
|
4789 propagate default_face into extent_fragment_update. */
|
|
|
4790 if (data.findex == DEFAULT_INDEX)
|
|
|
4791 data.findex = default_face;
|
|
|
4792
|
|
|
4793 get_display_tables (w, data.findex, &face_dt, &window_dt);
|
|
|
4794
|
|
826
|
4795 if (data.byte_charpos == data.ef->end)
|
|
428
|
4796 no_more_frags = 1;
|
|
|
4797 }
|
|
|
4798 initial = 0;
|
|
|
4799
|
|
|
4800 /* Determine what is next to be displayed. We first handle any
|
|
665
|
4801 glyphs returned by glyphs_at_charbpos. If there are no glyphs to
|
|
428
|
4802 display then we determine what to do based on the character at the
|
|
|
4803 current buffer position. */
|
|
|
4804
|
|
|
4805 /* If the current position is covered by an invisible extent, do
|
|
|
4806 nothing (except maybe add some ellipses).
|
|
|
4807
|
|
|
4808 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
4809 invisible extent should be investigated further. This is
|
|
|
4810 fairly low priority though. */
|
|
|
4811 if (data.ef->invisible)
|
|
|
4812 {
|
|
|
4813 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
4814 really know what I'm doing. */
|
|
|
4815 if (*prop)
|
|
|
4816 {
|
|
|
4817 Dynarr_free (*prop);
|
|
|
4818 *prop = 0;
|
|
|
4819 }
|
|
|
4820
|
|
|
4821 /* The extent fragment code only sets this when we should
|
|
|
4822 really display the ellipses. It makes sure the ellipses
|
|
|
4823 don't get displayed more than once in a row. */
|
|
|
4824 if (data.ef->invisible_ellipses)
|
|
|
4825 {
|
|
|
4826 struct glyph_block gb;
|
|
|
4827
|
|
|
4828 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
4829 data.ef->invisible_ellipses = 0;
|
|
|
4830 gb.extent = Qnil;
|
|
|
4831 gb.glyph = Vinvisible_text_glyph;
|
|
|
4832 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
4833 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
4834 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
4835 is to display a newline (for compatibility with
|
|
|
4836 selective-display-ellipses)? Maybe that's too
|
|
|
4837 abstruse. */
|
|
|
4838 if (*prop)
|
|
|
4839 goto done;
|
|
|
4840 }
|
|
|
4841
|
|
638
|
4842 /* #### What if we're dealing with a display table? */
|
|
428
|
4843 if (data.start_col)
|
|
|
4844 data.start_col--;
|
|
|
4845
|
|
826
|
4846 if (data.byte_charpos == byte_string_zv)
|
|
428
|
4847 goto done;
|
|
|
4848 else
|
|
826
|
4849 INC_BYTECOUNT (XSTRING_DATA (disp_string), data.byte_charpos);
|
|
428
|
4850 }
|
|
|
4851
|
|
|
4852 /* If there is propagation data, then it represents the current
|
|
|
4853 buffer position being displayed. Add them and advance the
|
|
|
4854 position counter. This might also add the minibuffer
|
|
|
4855 prompt. */
|
|
|
4856 else if (*prop)
|
|
|
4857 {
|
|
|
4858 dl->used_prop_data = 1;
|
|
|
4859 *prop = add_propagation_runes (prop, &data);
|
|
|
4860
|
|
|
4861 if (*prop)
|
|
|
4862 goto done; /* gee, a really narrow window */
|
|
826
|
4863 else if (data.byte_charpos == byte_string_zv)
|
|
428
|
4864 goto done;
|
|
826
|
4865 else if (data.byte_charpos < 0)
|
|
428
|
4866 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
826
|
4867 data.byte_charpos = 0;
|
|
428
|
4868 else
|
|
826
|
4869 INC_BYTECOUNT (XSTRING_DATA (disp_string), data.byte_charpos);
|
|
428
|
4870 }
|
|
|
4871
|
|
|
4872 /* If there are end glyphs, add them to the line. These are
|
|
|
4873 the end glyphs for the previous run of text. We add them
|
|
|
4874 here rather than doing them at the end of handling the
|
|
|
4875 previous run so that glyphs at the beginning and end of
|
|
|
4876 a line are handled correctly. */
|
|
|
4877 else if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
4878 {
|
|
867
|
4879 data.ch = string_ichar (disp_string, data.byte_charpos);
|
|
428
|
4880 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
819
|
4881
|
|
|
4882 if (*prop) {
|
|
428
|
4883 goto done;
|
|
819
|
4884 }
|
|
428
|
4885 }
|
|
|
4886
|
|
|
4887 /* If there are begin glyphs, add them to the line. */
|
|
|
4888 else if (Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
4889 {
|
|
867
|
4890 data.ch = string_ichar (disp_string, data.byte_charpos);
|
|
428
|
4891 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
819
|
4892
|
|
|
4893 if (*prop) {
|
|
428
|
4894 goto done;
|
|
819
|
4895 }
|
|
428
|
4896 }
|
|
|
4897
|
|
|
4898 /* If at end-of-buffer, we've already processed begin and
|
|
|
4899 end-glyphs at this point and there's no text to process,
|
|
|
4900 so we're done. */
|
|
826
|
4901 else if (data.byte_charpos == byte_string_zv)
|
|
428
|
4902 goto done;
|
|
|
4903
|
|
|
4904 else
|
|
|
4905 {
|
|
|
4906 Lisp_Object entry = Qnil;
|
|
|
4907 /* Get the character at the current buffer position. */
|
|
867
|
4908 data.ch = string_ichar (disp_string, data.byte_charpos);
|
|
428
|
4909 if (!NILP (face_dt) || !NILP (window_dt))
|
|
|
4910 entry = display_table_entry (data.ch, face_dt, window_dt);
|
|
|
4911
|
|
|
4912 /* If there is a display table entry for it, hand it off to
|
|
|
4913 add_disp_table_entry_runes and let it worry about it. */
|
|
|
4914 if (!NILP (entry) && !EQ (entry, make_char (data.ch)))
|
|
|
4915 {
|
|
|
4916 *prop = add_disp_table_entry_runes (&data, entry);
|
|
|
4917
|
|
|
4918 if (*prop)
|
|
|
4919 goto done;
|
|
|
4920 }
|
|
|
4921
|
|
|
4922 /* Check if we have hit a newline character. If so, add a marker
|
|
|
4923 to the line and end this loop. */
|
|
|
4924 else if (data.ch == '\n')
|
|
|
4925 {
|
|
|
4926 /* We aren't going to be adding an end glyph so give its
|
|
|
4927 space back in order to make sure that the cursor can
|
|
|
4928 fit. */
|
|
819
|
4929 data.max_pixpos += data.end_glyph_width;
|
|
428
|
4930 goto done;
|
|
|
4931 }
|
|
|
4932
|
|
|
4933 /* If the current character is considered to be printable, then
|
|
|
4934 just add it. */
|
|
|
4935 else if (data.ch >= printable_min)
|
|
|
4936 {
|
|
867
|
4937 *prop = add_ichar_rune (&data);
|
|
428
|
4938 if (*prop)
|
|
|
4939 goto done;
|
|
|
4940 }
|
|
|
4941
|
|
|
4942 /* If the current character is a tab, determine the next tab
|
|
|
4943 starting position and add a blank rune which extends from the
|
|
|
4944 current pixel position to that starting position. */
|
|
|
4945 else if (data.ch == '\t')
|
|
|
4946 {
|
|
|
4947 int tab_start_pixpos = data.pixpos;
|
|
|
4948 int next_tab_start;
|
|
|
4949 int char_tab_width;
|
|
|
4950 int prop_width = 0;
|
|
|
4951
|
|
|
4952 if (data.start_col > 1)
|
|
|
4953 tab_start_pixpos -= (space_width (w) * (data.start_col - 1));
|
|
|
4954
|
|
|
4955 next_tab_start =
|
|
|
4956 next_tab_position (w, tab_start_pixpos,
|
|
|
4957 dl->bounds.left_in +
|
|
|
4958 data.hscroll_glyph_width_adjust);
|
|
|
4959 if (next_tab_start > data.max_pixpos)
|
|
|
4960 {
|
|
|
4961 prop_width = next_tab_start - data.max_pixpos;
|
|
|
4962 next_tab_start = data.max_pixpos;
|
|
|
4963 }
|
|
|
4964 data.blank_width = next_tab_start - data.pixpos;
|
|
|
4965 char_tab_width =
|
|
|
4966 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
4967
|
|
|
4968 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
4969
|
|
|
4970 /* add_blank_rune is only supposed to be called with
|
|
819
|
4971 sizes guaranteed to fit in the available space. */
|
|
428
|
4972 assert (!(*prop));
|
|
|
4973
|
|
|
4974 if (prop_width)
|
|
|
4975 {
|
|
|
4976 struct prop_block pb;
|
|
|
4977 *prop = Dynarr_new (prop_block);
|
|
|
4978
|
|
|
4979 pb.type = PROP_BLANK;
|
|
|
4980 pb.data.p_blank.width = prop_width;
|
|
|
4981 pb.data.p_blank.findex = data.findex;
|
|
|
4982 Dynarr_add (*prop, pb);
|
|
|
4983
|
|
|
4984 goto done;
|
|
|
4985 }
|
|
|
4986 }
|
|
|
4987
|
|
|
4988 /* If character is a control character, pass it off to
|
|
|
4989 add_control_char_runes.
|
|
|
4990
|
|
|
4991 The is_*() routines have undefined results on
|
|
|
4992 arguments outside of the range [-1, 255]. (This
|
|
|
4993 often bites people who carelessly use `char' instead
|
|
|
4994 of `unsigned char'.)
|
|
|
4995 */
|
|
867
|
4996 else if (data.ch < 0x100 && iscntrl ((Ibyte) data.ch))
|
|
428
|
4997 {
|
|
|
4998 *prop = add_control_char_runes (&data, b);
|
|
|
4999
|
|
|
5000 if (*prop)
|
|
|
5001 goto done;
|
|
|
5002 }
|
|
|
5003
|
|
|
5004 /* If the character is above the ASCII range and we have not
|
|
|
5005 already handled it, then print it as an octal number. */
|
|
|
5006 else if (data.ch >= 0200)
|
|
|
5007 {
|
|
|
5008 *prop = add_octal_runes (&data);
|
|
|
5009
|
|
|
5010 if (*prop)
|
|
|
5011 goto done;
|
|
|
5012 }
|
|
|
5013
|
|
|
5014 /* Assume the current character is considered to be printable,
|
|
|
5015 then just add it. */
|
|
|
5016 else
|
|
|
5017 {
|
|
867
|
5018 *prop = add_ichar_rune (&data);
|
|
428
|
5019 if (*prop)
|
|
|
5020 goto done;
|
|
|
5021 }
|
|
|
5022
|
|
826
|
5023 INC_BYTECOUNT (XSTRING_DATA (disp_string), data.byte_charpos);
|
|
428
|
5024 }
|
|
|
5025 }
|
|
|
5026
|
|
819
|
5027 done:
|
|
428
|
5028
|
|
|
5029 /* Determine the starting point of the next line if we did not hit the
|
|
|
5030 end of the buffer. */
|
|
826
|
5031 if (data.byte_charpos < byte_string_zv)
|
|
428
|
5032 {
|
|
|
5033 /* #### This check is not correct. If the line terminated
|
|
|
5034 due to a begin-glyph or end-glyph hitting window-end, then
|
|
826
|
5035 data.ch will not point to the character at data.byte_charpos. If
|
|
428
|
5036 you make the two changes mentioned at the top of this loop,
|
|
|
5037 you should be able to say '(if (*prop))'. That should also
|
|
826
|
5038 make it possible to eliminate the data.byte_charpos < BYTE_BUF_ZV (b)
|
|
428
|
5039 check. */
|
|
|
5040
|
|
|
5041 /* The common case is that the line ended because we hit a newline.
|
|
|
5042 In that case, the next character is just the next buffer
|
|
|
5043 position. */
|
|
|
5044 if (data.ch == '\n')
|
|
|
5045 {
|
|
826
|
5046 INC_BYTECOUNT (XSTRING_DATA (disp_string), data.byte_charpos);
|
|
428
|
5047 }
|
|
|
5048
|
|
|
5049 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
5050 line. */
|
|
|
5051 else
|
|
|
5052 {
|
|
|
5053 struct glyph_block gb;
|
|
|
5054 struct glyph_cachel *cachel;
|
|
|
5055
|
|
|
5056 /* If the line is to be truncated then we actually have to look
|
|
|
5057 for the next newline. We also add the end-of-line glyph which
|
|
|
5058 we know will fit because we adjusted the right border before
|
|
|
5059 we starting laying out the line. */
|
|
819
|
5060 data.max_pixpos += data.end_glyph_width;
|
|
428
|
5061 data.findex = default_face;
|
|
|
5062 gb.extent = Qnil;
|
|
|
5063
|
|
|
5064 if (truncate_win)
|
|
|
5065 {
|
|
826
|
5066 Bytecount byte_pos;
|
|
428
|
5067
|
|
|
5068 /* Now find the start of the next line. */
|
|
867
|
5069 byte_pos = byte_find_next_ichar_in_string (disp_string, '\n',
|
|
826
|
5070 data.byte_charpos, 1);
|
|
428
|
5071
|
|
|
5072 data.cursor_type = NO_CURSOR;
|
|
826
|
5073 data.byte_charpos = byte_pos;
|
|
428
|
5074 gb.glyph = Vtruncation_glyph;
|
|
|
5075 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
5076 }
|
|
|
5077 else
|
|
|
5078 {
|
|
|
5079 /* The cursor can never be on the continuation glyph. */
|
|
|
5080 data.cursor_type = NO_CURSOR;
|
|
|
5081
|
|
826
|
5082 /* data.byte_charpos is already at the start of the next line. */
|
|
428
|
5083
|
|
442
|
5084 dl->line_continuation = 1;
|
|
428
|
5085 gb.glyph = Vcontinuation_glyph;
|
|
|
5086 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
5087 }
|
|
|
5088
|
|
819
|
5089 if (data.end_glyph_width)
|
|
428
|
5090 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, cachel);
|
|
|
5091
|
|
826
|
5092 if (truncate_win && data.byte_charpos == byte_string_zv)
|
|
428
|
5093 {
|
|
867
|
5094 const Ibyte *endb = itext_n_addr (XSTRING_DATA (disp_string),
|
|
826
|
5095 byte_string_zv);
|
|
867
|
5096 DEC_IBYTEPTR (endb);
|
|
|
5097 if (itext_ichar (endb) != '\n')
|
|
428
|
5098 {
|
|
|
5099 /* #### Damn this losing shit. */
|
|
826
|
5100 data.byte_charpos++;
|
|
428
|
5101 }
|
|
|
5102 }
|
|
|
5103 }
|
|
|
5104 }
|
|
826
|
5105 else if (data.byte_charpos == byte_string_zv)
|
|
428
|
5106 {
|
|
|
5107 /* create_text_block () adds a bogus \n marker here which screws
|
|
|
5108 up subwindow display. Since we never have a cursor in the
|
|
|
5109 gutter we can safely ignore it. */
|
|
|
5110 }
|
|
|
5111 /* Calculate left whitespace boundary. */
|
|
|
5112 {
|
|
|
5113 int elt = 0;
|
|
|
5114
|
|
|
5115 /* Whitespace past a newline is considered right whitespace. */
|
|
|
5116 while (elt < Dynarr_length (db->runes))
|
|
|
5117 {
|
|
|
5118 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
5119
|
|
|
5120 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
5121 || rb->type == RUNE_BLANK)
|
|
|
5122 {
|
|
|
5123 dl->bounds.left_white += rb->width;
|
|
|
5124 elt++;
|
|
|
5125 }
|
|
|
5126 else
|
|
|
5127 elt = Dynarr_length (db->runes);
|
|
|
5128 }
|
|
|
5129 }
|
|
|
5130
|
|
|
5131 /* Calculate right whitespace boundary. */
|
|
|
5132 {
|
|
|
5133 int elt = Dynarr_length (db->runes) - 1;
|
|
|
5134 int done = 0;
|
|
|
5135
|
|
|
5136 while (!done && elt >= 0)
|
|
|
5137 {
|
|
|
5138 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
5139
|
|
|
5140 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
5141 && isspace (rb->object.chr.ch))
|
|
|
5142 && !rb->type == RUNE_BLANK)
|
|
|
5143 {
|
|
|
5144 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
5145 done = 1;
|
|
|
5146 }
|
|
|
5147
|
|
|
5148 elt--;
|
|
|
5149
|
|
|
5150 }
|
|
|
5151
|
|
|
5152 /* The line is blank so everything is considered to be right
|
|
|
5153 whitespace. */
|
|
|
5154 if (!done)
|
|
|
5155 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
5156 }
|
|
|
5157
|
|
|
5158 /* Set the display blocks bounds. */
|
|
|
5159 db->start_pos = dl->bounds.left_in;
|
|
|
5160 if (Dynarr_length (db->runes))
|
|
|
5161 {
|
|
|
5162 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
5163
|
|
|
5164 db->end_pos = rb->xpos + rb->width;
|
|
|
5165 }
|
|
|
5166 else
|
|
|
5167 db->end_pos = dl->bounds.right_white;
|
|
|
5168
|
|
819
|
5169 calculate_baseline (&data);
|
|
428
|
5170
|
|
|
5171 dl->ascent = data.new_ascent;
|
|
|
5172 dl->descent = data.new_descent;
|
|
|
5173
|
|
|
5174 {
|
|
|
5175 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
5176
|
|
|
5177 if (dl->ascent < ascent)
|
|
|
5178 dl->ascent = ascent;
|
|
|
5179 }
|
|
|
5180 {
|
|
|
5181 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
5182
|
|
|
5183 if (dl->descent < descent)
|
|
|
5184 dl->descent = descent;
|
|
|
5185 }
|
|
|
5186
|
|
819
|
5187 calculate_yoffset (dl, db);
|
|
|
5188
|
|
428
|
5189 dl->cursor_elt = data.cursor_x;
|
|
|
5190 /* #### lossage lossage lossage! Fix this shit! */
|
|
826
|
5191 if (data.byte_charpos > byte_string_zv)
|
|
|
5192 dl->end_charpos = buffer_or_string_bytexpos_to_charxpos (disp_string,
|
|
|
5193 byte_string_zv);
|
|
428
|
5194 else
|
|
826
|
5195 dl->end_charpos =
|
|
|
5196 buffer_or_string_bytexpos_to_charxpos (disp_string,
|
|
|
5197 data.byte_charpos) - 1;
|
|
428
|
5198 if (truncate_win)
|
|
434
|
5199 data.dl->num_chars =
|
|
826
|
5200 string_column_at_point (disp_string, dl->end_charpos,
|
|
793
|
5201 b ? XINT (b->tab_width) : 8);
|
|
428
|
5202 else
|
|
|
5203 /* This doesn't correctly take into account tabs and control
|
|
|
5204 characters but if the window isn't being truncated then this
|
|
|
5205 value isn't going to end up being used anyhow. */
|
|
826
|
5206 data.dl->num_chars = dl->end_charpos - dl->charpos;
|
|
428
|
5207
|
|
|
5208 /* #### handle horizontally scrolled line with text none of which
|
|
|
5209 was actually laid out. */
|
|
|
5210
|
|
|
5211 /* #### handle any remainder of overlay arrow */
|
|
|
5212
|
|
|
5213 if (*prop == ADD_FAILED)
|
|
|
5214 *prop = NULL;
|
|
|
5215
|
|
|
5216 if (truncate_win && *prop)
|
|
|
5217 {
|
|
|
5218 Dynarr_free (*prop);
|
|
|
5219 *prop = NULL;
|
|
|
5220 }
|
|
|
5221
|
|
|
5222 extent_fragment_delete (data.ef);
|
|
|
5223
|
|
|
5224 /* #### If we started at EOB, then make sure we return a value past
|
|
|
5225 it so that regenerate_window will exit properly. This is bogus.
|
|
|
5226 The main loop should get fixed so that it isn't necessary to call
|
|
|
5227 this function if we are already at EOB. */
|
|
|
5228
|
|
826
|
5229 if (data.byte_charpos == byte_string_zv && byte_start_pos == byte_string_zv)
|
|
793
|
5230 return string_index_byte_to_char (disp_string,
|
|
826
|
5231 data.byte_charpos) + 1; /* Yuck! */
|
|
428
|
5232 else
|
|
826
|
5233 return string_index_byte_to_char (disp_string, data.byte_charpos);
|
|
428
|
5234 }
|
|
|
5235
|
|
|
5236 /* Given a display line and a starting position, ensure that the
|
|
|
5237 contents of the display line accurately represent the visual
|
|
|
5238 representation of the buffer contents starting from the given
|
|
|
5239 position when displayed in the given window. The display line ends
|
|
|
5240 when the contents of the line reach the right boundary of the given
|
|
434
|
5241 window.
|
|
|
5242
|
|
428
|
5243 This is very similar to generate_display_line but with the same
|
|
|
5244 limitations as create_string_text_block. I have taken the liberty
|
|
665
|
5245 of fixing the bytebpos stuff though.*/
|
|
|
5246
|
|
|
5247 static Charbpos
|
|
428
|
5248 generate_string_display_line (struct window *w, Lisp_Object disp_string,
|
|
|
5249 struct display_line *dl,
|
|
826
|
5250 Charcount start_pos,
|
|
428
|
5251 prop_block_dynarr **prop,
|
|
|
5252 face_index default_face)
|
|
|
5253 {
|
|
826
|
5254 Charcount ret_charcount;
|
|
428
|
5255
|
|
|
5256 /* you must set bounds before calling this. */
|
|
434
|
5257
|
|
428
|
5258 /* Reset what this line is using. */
|
|
|
5259 if (dl->display_blocks)
|
|
|
5260 Dynarr_reset (dl->display_blocks);
|
|
|
5261 if (dl->left_glyphs)
|
|
|
5262 {
|
|
|
5263 Dynarr_free (dl->left_glyphs);
|
|
|
5264 dl->left_glyphs = 0;
|
|
|
5265 }
|
|
|
5266 if (dl->right_glyphs)
|
|
|
5267 {
|
|
|
5268 Dynarr_free (dl->right_glyphs);
|
|
|
5269 dl->right_glyphs = 0;
|
|
|
5270 }
|
|
|
5271
|
|
|
5272 /* We aren't generating a modeline at the moment. */
|
|
|
5273 dl->modeline = 0;
|
|
|
5274
|
|
|
5275 /* Create a display block for the text region of the line. */
|
|
826
|
5276 ret_charcount = create_string_text_block (w, disp_string, dl, start_pos,
|
|
|
5277 prop, default_face);
|
|
|
5278 dl->charpos = start_pos;
|
|
|
5279 if (dl->end_charpos < dl->charpos)
|
|
|
5280 dl->end_charpos = dl->charpos;
|
|
428
|
5281
|
|
|
5282 /* If there are left glyphs associated with any character in the
|
|
|
5283 text block, then create a display block to handle them. */
|
|
|
5284 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
5285 create_left_glyph_block (w, dl, 0);
|
|
|
5286
|
|
|
5287 /* If there are right glyphs associated with any character in the
|
|
|
5288 text block, then create a display block to handle them. */
|
|
|
5289 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
5290 create_right_glyph_block (w, dl);
|
|
|
5291
|
|
826
|
5292 return ret_charcount;
|
|
428
|
5293 }
|
|
|
5294
|
|
2518
|
5295 /*
|
|
|
5296
|
|
|
5297 Info on Re-entrancy crashes, with backtraces given:
|
|
|
5298
|
|
|
5299 (Info-goto-node "(internals)Nasty Bugs due to Reentrancy in Redisplay Structures handling QUIT")
|
|
1318
|
5300 */
|
|
|
5301
|
|
|
5302
|
|
428
|
5303 /* This is ripped off from regenerate_window. All we want to do is
|
|
|
5304 loop through elements in the string creating display lines until we
|
|
|
5305 have covered the provided area. Simple really. */
|
|
|
5306 void
|
|
|
5307 generate_displayable_area (struct window *w, Lisp_Object disp_string,
|
|
|
5308 int xpos, int ypos, int width, int height,
|
|
|
5309 display_line_dynarr* dla,
|
|
826
|
5310 Charcount start_pos,
|
|
428
|
5311 face_index default_face)
|
|
|
5312 {
|
|
|
5313 int yend = ypos + height;
|
|
|
5314 Charcount s_zv;
|
|
|
5315 prop_block_dynarr *prop = 0;
|
|
|
5316 layout_bounds bounds;
|
|
2518
|
5317 int depth = -1;
|
|
|
5318
|
|
428
|
5319 /* if there's nothing to do then do nothing. code after this assumes
|
|
|
5320 there is something to do. */
|
|
|
5321 if (NILP (disp_string))
|
|
|
5322 return;
|
|
|
5323
|
|
2518
|
5324 /* See comment in regenerate_window() */
|
|
|
5325 if (!in_display)
|
|
|
5326 depth = enter_redisplay_critical_section ();
|
|
|
5327
|
|
|
5328 assert (dla);
|
|
|
5329 Dynarr_reset (dla);
|
|
|
5330
|
|
826
|
5331 s_zv = string_char_length (disp_string);
|
|
428
|
5332
|
|
|
5333 bounds.left_out = xpos;
|
|
|
5334 bounds.right_out = xpos + width;
|
|
|
5335 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
5336 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
5337 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
5338 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
5339 depend on the contents of the line being displayed. */
|
|
|
5340 bounds.left_white = bounds.left_in;
|
|
|
5341 bounds.right_white = bounds.right_in;
|
|
|
5342
|
|
|
5343 while (ypos < yend)
|
|
|
5344 {
|
|
|
5345 struct display_line dl;
|
|
|
5346 struct display_line *dlp;
|
|
826
|
5347 Charcount next_pos;
|
|
428
|
5348 int local;
|
|
851
|
5349 int pos_of_dlp = -1;
|
|
428
|
5350
|
|
|
5351 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
5352 {
|
|
851
|
5353 pos_of_dlp = Dynarr_length (dla);
|
|
|
5354 dlp = Dynarr_atp (dla, pos_of_dlp);
|
|
428
|
5355 local = 0;
|
|
|
5356 }
|
|
|
5357 else
|
|
|
5358 {
|
|
|
5359
|
|
|
5360 xzero (dl);
|
|
|
5361 dlp = &dl;
|
|
|
5362 local = 1;
|
|
|
5363 }
|
|
|
5364
|
|
|
5365 dlp->bounds = bounds;
|
|
|
5366 dlp->offset = 0;
|
|
1318
|
5367 Dynarr_lock (dla);
|
|
428
|
5368 next_pos = generate_string_display_line (w, disp_string, dlp, start_pos,
|
|
|
5369 &prop, default_face);
|
|
1318
|
5370 Dynarr_unlock (dla);
|
|
428
|
5371 /* we need to make sure that we continue along the line if there
|
|
|
5372 is more left to display otherwise we just end up redisplaying
|
|
|
5373 the same chunk over and over again. */
|
|
|
5374 if (next_pos == start_pos && next_pos < s_zv)
|
|
|
5375 start_pos++;
|
|
|
5376 else
|
|
|
5377 start_pos = next_pos;
|
|
|
5378
|
|
|
5379 dlp->ypos = ypos + dlp->ascent;
|
|
|
5380 ypos = dlp->ypos + dlp->descent;
|
|
|
5381
|
|
|
5382 if (ypos > yend)
|
|
|
5383 {
|
|
|
5384 int visible_height = dlp->ascent + dlp->descent;
|
|
|
5385
|
|
|
5386 dlp->clip = (ypos - yend);
|
|
|
5387 visible_height -= dlp->clip;
|
|
|
5388
|
|
|
5389 if (visible_height < VERTICAL_CLIP (w, 1))
|
|
|
5390 {
|
|
|
5391 if (local)
|
|
|
5392 free_display_line (dlp);
|
|
|
5393 break;
|
|
|
5394 }
|
|
|
5395 }
|
|
|
5396 else
|
|
|
5397 dlp->clip = 0;
|
|
|
5398
|
|
851
|
5399 assert (pos_of_dlp < 0 || pos_of_dlp == Dynarr_length (dla));
|
|
428
|
5400 Dynarr_add (dla, *dlp);
|
|
|
5401
|
|
|
5402 /* #### This type of check needs to be done down in the
|
|
|
5403 generate_display_line call. */
|
|
|
5404 if (start_pos >= s_zv)
|
|
|
5405 break;
|
|
|
5406 }
|
|
|
5407
|
|
|
5408 if (prop)
|
|
|
5409 Dynarr_free (prop);
|
|
2518
|
5410
|
|
|
5411 if (depth >= 0)
|
|
|
5412 exit_redisplay_critical_section (depth);
|
|
428
|
5413 }
|
|
|
5414
|
|
|
5415
|
|
|
5416 /***************************************************************************/
|
|
|
5417 /* */
|
|
|
5418 /* window-regeneration routines */
|
|
|
5419 /* */
|
|
|
5420 /***************************************************************************/
|
|
|
5421
|
|
|
5422 /* For a given window and starting position in the buffer it contains,
|
|
|
5423 ensure that the TYPE display lines accurately represent the
|
|
|
5424 presentation of the window. We pass the buffer instead of getting
|
|
|
5425 it from the window since redisplay_window may have temporarily
|
|
|
5426 changed it to the echo area buffer. */
|
|
|
5427
|
|
|
5428 static void
|
|
2518
|
5429 regenerate_window (struct window *w, Charbpos start_pos, Charbpos point,
|
|
|
5430 int type)
|
|
428
|
5431 {
|
|
|
5432 struct frame *f = XFRAME (w->frame);
|
|
|
5433 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5434 int ypos = WINDOW_TEXT_TOP (w);
|
|
|
5435 int yend; /* set farther down */
|
|
|
5436 int yclip = WINDOW_TEXT_TOP_CLIP (w);
|
|
442
|
5437 int force;
|
|
2518
|
5438 int depth = -1;
|
|
428
|
5439
|
|
|
5440 prop_block_dynarr *prop;
|
|
|
5441 layout_bounds bounds;
|
|
|
5442 display_line_dynarr *dla;
|
|
|
5443 int need_modeline;
|
|
|
5444
|
|
|
5445 /* The lines had better exist by this point. */
|
|
|
5446 if (!(dla = window_display_lines (w, type)))
|
|
2500
|
5447 ABORT ();
|
|
2518
|
5448
|
|
|
5449 if (!in_display)
|
|
|
5450 depth = enter_redisplay_critical_section ();
|
|
|
5451
|
|
|
5452 /* This is one spot where a re-entrancy crash will occur, due to a check
|
|
|
5453 in the dynarr to make sure it isn't "locked" */
|
|
|
5454 /*
|
|
|
5455
|
|
|
5456 Info on Re-entrancy crashes, with backtraces given:
|
|
|
5457
|
|
|
5458 (Info-goto-node "(internals)Nasty Bugs due to Reentrancy in Redisplay Structures handling QUIT")
|
|
|
5459 */
|
|
|
5460
|
|
428
|
5461 Dynarr_reset (dla);
|
|
|
5462 w->max_line_len = 0;
|
|
|
5463
|
|
|
5464 /* Normally these get updated in redisplay_window but it is possible
|
|
|
5465 for this function to get called from some other points where that
|
|
|
5466 update may not have occurred. This acts as a safety check. */
|
|
|
5467 if (!Dynarr_length (w->face_cachels))
|
|
|
5468 reset_face_cachels (w);
|
|
|
5469 if (!Dynarr_length (w->glyph_cachels))
|
|
|
5470 reset_glyph_cachels (w);
|
|
|
5471
|
|
|
5472 Fset_marker (w->start[type], make_int (start_pos), w->buffer);
|
|
|
5473 Fset_marker (w->pointm[type], make_int (point), w->buffer);
|
|
|
5474 w->last_point_x[type] = -1;
|
|
|
5475 w->last_point_y[type] = -1;
|
|
|
5476
|
|
|
5477 /* Make sure a modeline is in the structs if needed. */
|
|
|
5478 need_modeline = ensure_modeline_generated (w, type);
|
|
|
5479
|
|
|
5480 /* Wait until here to set this so that the structs have a modeline
|
|
|
5481 generated in the case where one didn't exist. */
|
|
|
5482 yend = WINDOW_TEXT_BOTTOM (w);
|
|
|
5483
|
|
|
5484 bounds = calculate_display_line_boundaries (w, 0);
|
|
|
5485
|
|
|
5486 /* 97/3/14 jhod: stuff added here to support pre-prompts (used for input systems) */
|
|
|
5487 if (MINI_WINDOW_P (w)
|
|
|
5488 && (!NILP (Vminibuf_prompt) || !NILP (Vminibuf_preprompt))
|
|
|
5489 && !echo_area_active (f)
|
|
|
5490 && start_pos == BUF_BEGV (b))
|
|
|
5491 {
|
|
|
5492 struct prop_block pb;
|
|
|
5493 Lisp_Object string;
|
|
|
5494 prop = Dynarr_new (prop_block);
|
|
|
5495
|
|
|
5496 string = concat2(Vminibuf_preprompt, Vminibuf_prompt);
|
|
|
5497 pb.type = PROP_MINIBUF_PROMPT;
|
|
|
5498 pb.data.p_string.str = XSTRING_DATA(string);
|
|
|
5499 pb.data.p_string.len = XSTRING_LENGTH(string);
|
|
|
5500 Dynarr_add (prop, pb);
|
|
|
5501 }
|
|
|
5502 else
|
|
|
5503 prop = 0;
|
|
|
5504
|
|
442
|
5505 /* When we are computing things for scrolling purposes, make
|
|
|
5506 sure at least one line is always generated */
|
|
|
5507 force = (type == CMOTION_DISP);
|
|
|
5508
|
|
|
5509 /* Make sure this is set always */
|
|
|
5510 /* Note the conversion at end */
|
|
|
5511 w->window_end_pos[type] = start_pos;
|
|
|
5512 while (ypos < yend || force)
|
|
428
|
5513 {
|
|
|
5514 struct display_line dl;
|
|
|
5515 struct display_line *dlp;
|
|
|
5516 int local;
|
|
851
|
5517 int pos_of_dlp = -1;
|
|
428
|
5518
|
|
|
5519 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
5520 {
|
|
851
|
5521 pos_of_dlp = Dynarr_length (dla);
|
|
|
5522 dlp = Dynarr_atp (dla, pos_of_dlp);
|
|
428
|
5523 local = 0;
|
|
|
5524 }
|
|
|
5525 else
|
|
|
5526 {
|
|
|
5527
|
|
|
5528 xzero (dl);
|
|
|
5529 dlp = &dl;
|
|
|
5530 local = 1;
|
|
|
5531 }
|
|
|
5532
|
|
|
5533 dlp->bounds = bounds;
|
|
|
5534 dlp->offset = 0;
|
|
1318
|
5535 Dynarr_lock (dla);
|
|
428
|
5536 start_pos = generate_display_line (w, dlp, 1, start_pos, &prop, type);
|
|
1318
|
5537 Dynarr_unlock (dla);
|
|
428
|
5538
|
|
|
5539 if (yclip > dlp->ascent)
|
|
|
5540 {
|
|
|
5541 /* this should never happen, but if it does just display the
|
|
|
5542 whole line */
|
|
|
5543 yclip = 0;
|
|
|
5544 }
|
|
|
5545
|
|
|
5546 dlp->ypos = (ypos + dlp->ascent) - yclip;
|
|
|
5547 ypos = dlp->ypos + dlp->descent;
|
|
|
5548
|
|
|
5549 /* See if we've been asked to start midway through a line, for
|
|
|
5550 partial display line scrolling. */
|
|
434
|
5551 if (yclip)
|
|
428
|
5552 {
|
|
|
5553 dlp->top_clip = yclip;
|
|
|
5554 yclip = 0;
|
|
|
5555 }
|
|
|
5556 else
|
|
|
5557 dlp->top_clip = 0;
|
|
|
5558
|
|
|
5559 if (ypos > yend)
|
|
|
5560 {
|
|
|
5561 int visible_height = dlp->ascent + dlp->descent;
|
|
|
5562
|
|
|
5563 dlp->clip = (ypos - yend);
|
|
|
5564 /* Although this seems strange we could have a single very
|
|
|
5565 tall line visible for which we need to account for both
|
|
|
5566 the top clip and the bottom clip. */
|
|
|
5567 visible_height -= (dlp->clip + dlp->top_clip);
|
|
|
5568
|
|
442
|
5569 if (visible_height < VERTICAL_CLIP (w, 1) && !force)
|
|
428
|
5570 {
|
|
|
5571 if (local)
|
|
|
5572 free_display_line (dlp);
|
|
|
5573 break;
|
|
|
5574 }
|
|
|
5575 }
|
|
|
5576 else
|
|
|
5577 dlp->clip = 0;
|
|
|
5578
|
|
|
5579 if (dlp->cursor_elt != -1)
|
|
|
5580 {
|
|
|
5581 /* #### This check is steaming crap. Have to get things
|
|
|
5582 fixed so when create_text_block hits EOB, we're done,
|
|
|
5583 period. */
|
|
|
5584 if (w->last_point_x[type] == -1)
|
|
|
5585 {
|
|
|
5586 w->last_point_x[type] = dlp->cursor_elt;
|
|
|
5587 w->last_point_y[type] = Dynarr_length (dla);
|
|
|
5588 }
|
|
|
5589 else
|
|
|
5590 {
|
|
|
5591 /* #### This means that we've added a cursor at EOB
|
|
|
5592 twice. Yuck oh yuck. */
|
|
1318
|
5593 struct display_block *db;
|
|
|
5594
|
|
|
5595 Dynarr_lock (dla);
|
|
|
5596 db = get_display_block_from_line (dlp, TEXT);
|
|
|
5597 Dynarr_unlock (dla);
|
|
428
|
5598
|
|
|
5599 Dynarr_atp (db->runes, dlp->cursor_elt)->cursor_type = NO_CURSOR;
|
|
|
5600 dlp->cursor_elt = -1;
|
|
|
5601 }
|
|
|
5602 }
|
|
|
5603
|
|
|
5604 if (dlp->num_chars > w->max_line_len)
|
|
|
5605 w->max_line_len = dlp->num_chars;
|
|
|
5606
|
|
851
|
5607 assert (pos_of_dlp < 0 || pos_of_dlp == Dynarr_length (dla));
|
|
428
|
5608 Dynarr_add (dla, *dlp);
|
|
|
5609
|
|
|
5610 /* #### This isn't right, but it is close enough for now. */
|
|
|
5611 w->window_end_pos[type] = start_pos;
|
|
|
5612
|
|
|
5613 /* #### This type of check needs to be done down in the
|
|
|
5614 generate_display_line call. */
|
|
|
5615 if (start_pos > BUF_ZV (b))
|
|
|
5616 break;
|
|
442
|
5617
|
|
|
5618 force = 0;
|
|
428
|
5619 }
|
|
|
5620
|
|
|
5621 if (prop)
|
|
|
5622 Dynarr_free (prop);
|
|
|
5623
|
|
|
5624 /* #### More not quite right, but close enough. */
|
|
442
|
5625 /* Ben sez: apparently window_end_pos[] is measured
|
|
428
|
5626 as the number of characters between the window end and the
|
|
|
5627 end of the buffer? This seems rather weirdo. What's
|
|
442
|
5628 the justification for this?
|
|
|
5629
|
|
|
5630 JV sez: Because BUF_Z (b) would be a good initial value, however
|
|
|
5631 that can change. This representation allows initalizing with 0.
|
|
|
5632 */
|
|
428
|
5633 w->window_end_pos[type] = BUF_Z (b) - w->window_end_pos[type];
|
|
|
5634
|
|
|
5635 if (need_modeline)
|
|
|
5636 {
|
|
|
5637 /* We know that this is the right thing to use because we put it
|
|
|
5638 there when we first started working in this function. */
|
|
|
5639 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
5640 }
|
|
2518
|
5641
|
|
|
5642 if (depth >= 0)
|
|
|
5643 exit_redisplay_critical_section (depth);
|
|
428
|
5644 }
|
|
|
5645
|
|
826
|
5646 #define REGEN_INC_FIND_START_END \
|
|
|
5647 do { \
|
|
|
5648 /* Determine start and end of lines. */ \
|
|
|
5649 if (!Dynarr_length (cdla)) \
|
|
|
5650 return 0; \
|
|
|
5651 else \
|
|
|
5652 { \
|
|
428
|
5653 if (Dynarr_atp (cdla, 0)->modeline && Dynarr_atp (ddla, 0)->modeline) \
|
|
826
|
5654 { \
|
|
|
5655 dla_start = 1; \
|
|
|
5656 } \
|
|
|
5657 else if (!Dynarr_atp (cdla, 0)->modeline \
|
|
|
5658 && !Dynarr_atp (ddla, 0)->modeline) \
|
|
|
5659 { \
|
|
|
5660 dla_start = 0; \
|
|
|
5661 } \
|
|
|
5662 else \
|
|
2500
|
5663 ABORT (); /* structs differ */ \
|
|
826
|
5664 \
|
|
|
5665 dla_end = Dynarr_length (cdla) - 1; \
|
|
|
5666 } \
|
|
|
5667 \
|
|
|
5668 start_pos = (Dynarr_atp (cdla, dla_start)->charpos \
|
|
|
5669 + Dynarr_atp (cdla, dla_start)->offset); \
|
|
|
5670 /* If this isn't true, then startp has changed and we need to do a \
|
|
|
5671 full regen. */ \
|
|
|
5672 if (startp != start_pos) \
|
|
|
5673 return 0; \
|
|
|
5674 \
|
|
|
5675 /* Point is outside the visible region so give up. */ \
|
|
|
5676 if (pointm < start_pos) \
|
|
|
5677 return 0; \
|
|
|
5678 \
|
|
428
|
5679 } while (0)
|
|
|
5680
|
|
|
5681 /* This attempts to incrementally update the display structures. It
|
|
|
5682 returns a boolean indicating success or failure. This function is
|
|
|
5683 very similar to regenerate_window_incrementally and is in fact only
|
|
|
5684 called from that function. However, because of the nature of the
|
|
|
5685 changes it deals with it sometimes makes different assumptions
|
|
|
5686 which can lead to success which are much more difficult to make
|
|
|
5687 when dealing with buffer changes. */
|
|
|
5688
|
|
|
5689 static int
|
|
665
|
5690 regenerate_window_extents_only_changed (struct window *w, Charbpos startp,
|
|
|
5691 Charbpos pointm,
|
|
428
|
5692 Charcount beg_unchanged,
|
|
|
5693 Charcount end_unchanged)
|
|
|
5694 {
|
|
|
5695 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5696 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
5697 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
5698
|
|
|
5699 int dla_start = 0;
|
|
|
5700 int dla_end, line;
|
|
|
5701 int first_line, last_line;
|
|
665
|
5702 Charbpos start_pos;
|
|
428
|
5703 /* Don't define this in the loop where it is used because we
|
|
|
5704 definitely want its value to survive between passes. */
|
|
|
5705 prop_block_dynarr *prop = NULL;
|
|
|
5706
|
|
|
5707 /* If we don't have any buffer change recorded but the modiff flag has
|
|
|
5708 been incremented, then fail. I'm not sure of the exact circumstances
|
|
|
5709 under which this can happen, but I believe that it is probably a
|
|
|
5710 reasonable happening. */
|
|
|
5711 if (!point_visible (w, pointm, CURRENT_DISP)
|
|
|
5712 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b))
|
|
|
5713 return 0;
|
|
|
5714
|
|
|
5715 /* If the cursor is moved we attempt to update it. If we succeed we
|
|
|
5716 go ahead and proceed with the optimization attempt. */
|
|
|
5717 if (!EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5718 || pointm != marker_position (w->last_point[CURRENT_DISP]))
|
|
|
5719 {
|
|
|
5720 struct frame *f = XFRAME (w->frame);
|
|
|
5721 struct device *d = XDEVICE (f->device);
|
|
|
5722 struct frame *sel_f = device_selected_frame (d);
|
|
|
5723 int success = 0;
|
|
|
5724
|
|
|
5725 if (w->last_point_x[CURRENT_DISP] != -1
|
|
|
5726 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
5727 {
|
|
|
5728
|
|
|
5729 if (redisplay_move_cursor (w, pointm, WINDOW_TTY_P (w)))
|
|
|
5730 {
|
|
|
5731 /* Always regenerate the modeline in case it is
|
|
|
5732 displaying the current line or column. */
|
|
|
5733 regenerate_modeline (w);
|
|
|
5734 success = 1;
|
|
|
5735 }
|
|
|
5736 }
|
|
|
5737 else if (w != XWINDOW (FRAME_SELECTED_WINDOW (sel_f)))
|
|
|
5738 {
|
|
|
5739 if (f->modeline_changed)
|
|
|
5740 regenerate_modeline (w);
|
|
|
5741 success = 1;
|
|
|
5742 }
|
|
|
5743
|
|
|
5744 if (!success)
|
|
|
5745 return 0;
|
|
|
5746 }
|
|
|
5747
|
|
|
5748 if (beg_unchanged == -1 && end_unchanged == -1)
|
|
|
5749 return 1;
|
|
|
5750
|
|
|
5751 /* assert: There are no buffer modifications or they are all below the
|
|
|
5752 visible region. We assume that regenerate_window_incrementally has
|
|
|
5753 not called us unless this is true. */
|
|
|
5754
|
|
|
5755 REGEN_INC_FIND_START_END;
|
|
|
5756
|
|
|
5757 /* If the changed are starts before the visible area, give up. */
|
|
|
5758 if (beg_unchanged < startp)
|
|
|
5759 return 0;
|
|
|
5760
|
|
|
5761 /* Find what display line the extent changes first affect. */
|
|
|
5762 line = dla_start;
|
|
|
5763 while (line <= dla_end)
|
|
|
5764 {
|
|
|
5765 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
826
|
5766 Charbpos lstart = dl->charpos + dl->offset;
|
|
|
5767 Charbpos lend = dl->end_charpos + dl->offset;
|
|
428
|
5768
|
|
|
5769 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
5770 break;
|
|
|
5771
|
|
|
5772 line++;
|
|
|
5773 }
|
|
|
5774
|
|
|
5775 /* If the changes are below the visible area then if point hasn't
|
|
|
5776 moved return success otherwise fail in order to be safe. */
|
|
|
5777 if (line > dla_end)
|
|
|
5778 {
|
|
|
5779 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5780 && pointm == marker_position (w->last_point[CURRENT_DISP]))
|
|
|
5781 return 1;
|
|
|
5782 else
|
|
|
5783 return 0;
|
|
|
5784 }
|
|
|
5785
|
|
|
5786 /* At this point we know what line the changes first affect. We now
|
|
|
5787 begin redrawing lines as long as we are still in the affected
|
|
|
5788 region and the line's size and positioning don't change.
|
|
|
5789 Otherwise we fail. If we fail we will have altered the desired
|
|
|
5790 structs which could lead to an assertion failure. However, if we
|
|
|
5791 fail the next thing that is going to happen is a full regen so we
|
|
|
5792 will actually end up being safe. */
|
|
|
5793 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
5794 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
5795 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
5796 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
5797
|
|
|
5798 first_line = last_line = line;
|
|
|
5799 while (line <= dla_end)
|
|
|
5800 {
|
|
2286
|
5801 Charbpos old_start, old_end;
|
|
428
|
5802 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
5803 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
5804 struct display_block *db;
|
|
|
5805 int initial_size;
|
|
|
5806
|
|
826
|
5807 assert (cdl->charpos == ddl->charpos);
|
|
|
5808 assert (cdl->end_charpos == ddl->end_charpos);
|
|
428
|
5809 assert (cdl->offset == ddl->offset);
|
|
|
5810
|
|
|
5811 db = get_display_block_from_line (ddl, TEXT);
|
|
|
5812 initial_size = Dynarr_length (db->runes);
|
|
826
|
5813 old_start = ddl->charpos + ddl->offset;
|
|
|
5814 old_end = ddl->end_charpos + ddl->offset;
|
|
428
|
5815
|
|
|
5816 /* If this is the first line being updated and it used
|
|
|
5817 propagation data, fail. Otherwise we'll be okay because
|
|
|
5818 we'll have the necessary propagation data. */
|
|
|
5819 if (line == first_line && ddl->used_prop_data)
|
|
|
5820 return 0;
|
|
|
5821
|
|
2286
|
5822 generate_display_line (w, ddl, 0, ddl->charpos + ddl->offset,
|
|
|
5823 &prop, DESIRED_DISP);
|
|
428
|
5824 ddl->offset = 0;
|
|
|
5825
|
|
|
5826 /* #### If there is propagated stuff the fail. We could
|
|
|
5827 probably actually deal with this if the line had propagated
|
|
|
5828 information when originally created by a full
|
|
|
5829 regeneration. */
|
|
|
5830 if (prop)
|
|
|
5831 {
|
|
|
5832 Dynarr_free (prop);
|
|
|
5833 return 0;
|
|
|
5834 }
|
|
|
5835
|
|
|
5836 /* If any line position parameters have changed or a
|
|
|
5837 cursor has disappeared or disappeared, fail. */
|
|
|
5838 db = get_display_block_from_line (ddl, TEXT);
|
|
|
5839 if (cdl->ypos != ddl->ypos
|
|
|
5840 || cdl->ascent != ddl->ascent
|
|
|
5841 || cdl->descent != ddl->descent
|
|
|
5842 || cdl->top_clip != ddl->top_clip
|
|
|
5843 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
5844 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
|
|
826
|
5845 || old_start != ddl->charpos
|
|
|
5846 || old_end != ddl->end_charpos
|
|
428
|
5847 || initial_size != Dynarr_length (db->runes))
|
|
|
5848 {
|
|
|
5849 return 0;
|
|
|
5850 }
|
|
|
5851
|
|
|
5852 if (ddl->cursor_elt != -1)
|
|
|
5853 {
|
|
|
5854 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
5855 w->last_point_y[DESIRED_DISP] = line;
|
|
|
5856 }
|
|
|
5857
|
|
|
5858 last_line = line;
|
|
|
5859
|
|
|
5860 /* If the extent changes end on the line we just updated then
|
|
|
5861 we're done. Otherwise go on to the next line. */
|
|
826
|
5862 if (end_unchanged <= ddl->end_charpos)
|
|
428
|
5863 break;
|
|
|
5864 else
|
|
|
5865 line++;
|
|
|
5866 }
|
|
|
5867
|
|
|
5868 redisplay_update_line (w, first_line, last_line, 1);
|
|
|
5869 return 1;
|
|
|
5870 }
|
|
|
5871
|
|
|
5872 /* Attempt to update the display data structures based on knowledge of
|
|
|
5873 the changed region in the buffer. Returns a boolean indicating
|
|
|
5874 success or failure. If this function returns a failure then a
|
|
|
5875 regenerate_window _must_ be performed next in order to maintain
|
|
|
5876 invariants located here. */
|
|
|
5877
|
|
|
5878 static int
|
|
665
|
5879 regenerate_window_incrementally (struct window *w, Charbpos startp,
|
|
|
5880 Charbpos pointm)
|
|
428
|
5881 {
|
|
|
5882 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5883 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
5884 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
5885 Charcount beg_unchanged, end_unchanged;
|
|
|
5886 Charcount extent_beg_unchanged, extent_end_unchanged;
|
|
|
5887
|
|
|
5888 int dla_start = 0;
|
|
|
5889 int dla_end, line;
|
|
665
|
5890 Charbpos start_pos;
|
|
428
|
5891
|
|
|
5892 /* If this function is called, the current and desired structures
|
|
|
5893 had better be identical. If they are not, then that is a bug. */
|
|
|
5894 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
|
|
|
5895
|
|
|
5896 /* We don't handle minibuffer windows yet. The minibuffer prompt
|
|
|
5897 screws us up. */
|
|
|
5898 if (MINI_WINDOW_P (w))
|
|
|
5899 return 0;
|
|
|
5900
|
|
|
5901 extent_beg_unchanged = BUF_EXTENT_BEGIN_UNCHANGED (b);
|
|
|
5902 extent_end_unchanged = (BUF_EXTENT_END_UNCHANGED (b) == -1
|
|
|
5903 ? -1
|
|
|
5904 : BUF_Z (b) - BUF_EXTENT_END_UNCHANGED (b));
|
|
|
5905
|
|
|
5906 /* If nothing has changed in the buffer, then make sure point is ok
|
|
|
5907 and succeed. */
|
|
|
5908 if (BUF_BEGIN_UNCHANGED (b) == -1 && BUF_END_UNCHANGED (b) == -1)
|
|
|
5909 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5910 extent_beg_unchanged,
|
|
|
5911 extent_end_unchanged);
|
|
|
5912
|
|
|
5913 /* We can't deal with deleted newlines. */
|
|
|
5914 if (BUF_NEWLINE_WAS_DELETED (b))
|
|
|
5915 return 0;
|
|
|
5916
|
|
|
5917 beg_unchanged = BUF_BEGIN_UNCHANGED (b);
|
|
|
5918 end_unchanged = (BUF_END_UNCHANGED (b) == -1
|
|
|
5919 ? -1
|
|
|
5920 : BUF_Z (b) - BUF_END_UNCHANGED (b));
|
|
|
5921
|
|
|
5922 REGEN_INC_FIND_START_END;
|
|
|
5923
|
|
|
5924 /* If the changed area starts before the visible area, give up. */
|
|
|
5925 if (beg_unchanged < startp)
|
|
|
5926 return 0;
|
|
|
5927
|
|
|
5928 /* Find what display line the buffer changes first affect. */
|
|
|
5929 line = dla_start;
|
|
|
5930 while (line <= dla_end)
|
|
|
5931 {
|
|
|
5932 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
826
|
5933 Charbpos lstart = dl->charpos + dl->offset;
|
|
|
5934 Charbpos lend = dl->end_charpos + dl->offset;
|
|
428
|
5935
|
|
|
5936 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
5937 break;
|
|
|
5938
|
|
|
5939 line++;
|
|
|
5940 }
|
|
|
5941
|
|
|
5942 /* If the changes are below the visible area then if point hasn't
|
|
|
5943 moved return success otherwise fail in order to be safe. */
|
|
|
5944 if (line > dla_end)
|
|
|
5945 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5946 extent_beg_unchanged,
|
|
|
5947 extent_end_unchanged);
|
|
|
5948 else
|
|
|
5949 /* At this point we know what line the changes first affect. We
|
|
|
5950 now redraw that line. If the changes are contained within it
|
|
|
5951 we are going to succeed and can update just that one line.
|
|
|
5952 Otherwise we fail. If we fail we will have altered the desired
|
|
|
5953 structs which could lead to an assertion failure. However, if
|
|
|
5954 we fail the next thing that is going to happen is a full regen
|
|
|
5955 so we will actually end up being safe. */
|
|
|
5956 {
|
|
|
5957 prop_block_dynarr *prop = NULL;
|
|
|
5958 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
5959 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
5960
|
|
826
|
5961 assert (cdl->charpos == ddl->charpos);
|
|
|
5962 assert (cdl->end_charpos == ddl->end_charpos);
|
|
428
|
5963 assert (cdl->offset == ddl->offset);
|
|
|
5964
|
|
442
|
5965 /* If the line continues to next display line, fail. */
|
|
|
5966 if (ddl->line_continuation)
|
|
|
5967 return 0;
|
|
428
|
5968
|
|
|
5969 /* If the line was generated using propagation data, fail. */
|
|
|
5970 if (ddl->used_prop_data)
|
|
|
5971 return 0;
|
|
|
5972
|
|
2286
|
5973 generate_display_line (w, ddl, 0, ddl->charpos + ddl->offset,
|
|
|
5974 &prop, DESIRED_DISP);
|
|
428
|
5975 ddl->offset = 0;
|
|
|
5976
|
|
|
5977 /* If there is propagated stuff then it is pretty much a
|
|
|
5978 guarantee that more than just the one line is affected. */
|
|
|
5979 if (prop)
|
|
|
5980 {
|
|
|
5981 Dynarr_free (prop);
|
|
|
5982 return 0;
|
|
|
5983 }
|
|
|
5984
|
|
442
|
5985 /* If the line continues to next display line, fail. */
|
|
|
5986 if (ddl->line_continuation)
|
|
|
5987 return 0;
|
|
428
|
5988
|
|
|
5989 /* If any line position parameters have changed or a
|
|
|
5990 cursor has disappeared or disappeared, fail. */
|
|
|
5991 if (cdl->ypos != ddl->ypos
|
|
|
5992 || cdl->ascent != ddl->ascent
|
|
|
5993 || cdl->descent != ddl->descent
|
|
|
5994 || cdl->top_clip != ddl->top_clip
|
|
|
5995 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
5996 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1))
|
|
|
5997 {
|
|
|
5998 return 0;
|
|
|
5999 }
|
|
|
6000
|
|
|
6001 /* If the changed area also ends on this line, then we may be in
|
|
|
6002 business. Update everything and return success. */
|
|
826
|
6003 if (end_unchanged >= ddl->charpos && end_unchanged <= ddl->end_charpos)
|
|
428
|
6004 {
|
|
|
6005 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
6006 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
6007 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp),
|
|
|
6008 w->buffer);
|
|
|
6009 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm),
|
|
|
6010 w->buffer);
|
|
|
6011
|
|
|
6012 if (ddl->cursor_elt != -1)
|
|
|
6013 {
|
|
|
6014 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
6015 w->last_point_y[DESIRED_DISP] = line;
|
|
|
6016 }
|
|
|
6017
|
|
|
6018 redisplay_update_line (w, line, line, 1);
|
|
|
6019 regenerate_modeline (w);
|
|
|
6020
|
|
|
6021 /* #### For now we just flush the cache until this has been
|
|
|
6022 tested. After that is done, this should correct the
|
|
|
6023 cache directly. */
|
|
|
6024 Dynarr_reset (w->line_start_cache);
|
|
|
6025
|
|
|
6026 /* Adjust the extent changed boundaries to remove any
|
|
|
6027 overlap with the buffer changes since we've just
|
|
|
6028 successfully updated that area. */
|
|
|
6029 if (extent_beg_unchanged != -1
|
|
|
6030 && extent_beg_unchanged >= beg_unchanged
|
|
|
6031 && extent_beg_unchanged < end_unchanged)
|
|
|
6032 extent_beg_unchanged = end_unchanged;
|
|
|
6033
|
|
|
6034 if (extent_end_unchanged != -1
|
|
|
6035 && extent_end_unchanged >= beg_unchanged
|
|
|
6036 && extent_end_unchanged < end_unchanged)
|
|
|
6037 extent_end_unchanged = beg_unchanged - 1;
|
|
|
6038
|
|
|
6039 if (extent_end_unchanged <= extent_beg_unchanged)
|
|
|
6040 extent_beg_unchanged = extent_end_unchanged = -1;
|
|
|
6041
|
|
|
6042 /* This could lead to odd results if it fails, but since the
|
|
|
6043 buffer changes update succeeded this probably will to.
|
|
|
6044 We already know that the extent changes start at or after
|
|
|
6045 the line because we checked before entering the loop. */
|
|
|
6046 if (extent_beg_unchanged != -1
|
|
|
6047 && extent_end_unchanged != -1
|
|
826
|
6048 && ((extent_beg_unchanged < ddl->charpos)
|
|
|
6049 || (extent_end_unchanged > ddl->end_charpos)))
|
|
428
|
6050 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
6051 extent_beg_unchanged,
|
|
|
6052 extent_end_unchanged);
|
|
|
6053 else
|
|
|
6054 return 1;
|
|
|
6055 }
|
|
|
6056 }
|
|
|
6057
|
|
|
6058 /* Oh, well. */
|
|
|
6059 return 0;
|
|
|
6060 }
|
|
|
6061
|
|
|
6062 /* Given a window and a point, update the given display lines such
|
|
|
6063 that point is displayed in the middle of the window.
|
|
|
6064 Return the window's new start position. */
|
|
|
6065
|
|
665
|
6066 static Charbpos
|
|
|
6067 regenerate_window_point_center (struct window *w, Charbpos point, int type)
|
|
428
|
6068 {
|
|
665
|
6069 Charbpos startp;
|
|
428
|
6070
|
|
|
6071 /* We need to make sure that the modeline is generated so that the
|
|
|
6072 window height can be calculated correctly. */
|
|
|
6073 ensure_modeline_generated (w, type);
|
|
|
6074
|
|
|
6075 startp = start_with_line_at_pixpos (w, point, window_half_pixpos (w));
|
|
|
6076 regenerate_window (w, startp, point, type);
|
|
|
6077 Fset_marker (w->start[type], make_int (startp), w->buffer);
|
|
|
6078
|
|
|
6079 return startp;
|
|
|
6080 }
|
|
|
6081
|
|
|
6082 /* Given a window and a set of display lines, return a boolean
|
|
|
6083 indicating whether the given point is contained within. */
|
|
|
6084
|
|
|
6085 static int
|
|
665
|
6086 point_visible (struct window *w, Charbpos point, int type)
|
|
428
|
6087 {
|
|
|
6088 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6089 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
6090 int first_line;
|
|
|
6091
|
|
|
6092 if (Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
6093 first_line = 1;
|
|
|
6094 else
|
|
|
6095 first_line = 0;
|
|
|
6096
|
|
|
6097 if (Dynarr_length (dla) > first_line)
|
|
|
6098 {
|
|
665
|
6099 Charbpos start, end;
|
|
428
|
6100 struct display_line *dl = Dynarr_atp (dla, first_line);
|
|
|
6101
|
|
826
|
6102 start = dl->charpos;
|
|
428
|
6103 end = BUF_Z (b) - w->window_end_pos[type] - 1;
|
|
|
6104
|
|
|
6105 if (point >= start && point <= end)
|
|
|
6106 {
|
|
|
6107 if (!MINI_WINDOW_P (w) && scroll_on_clipped_lines)
|
|
|
6108 {
|
|
|
6109 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
6110
|
|
826
|
6111 if (point >= (dl->charpos + dl->offset)
|
|
|
6112 && point <= (dl->end_charpos + dl->offset))
|
|
428
|
6113 return !dl->clip;
|
|
|
6114 else
|
|
|
6115 return 1;
|
|
|
6116 }
|
|
|
6117 else
|
|
|
6118 return 1;
|
|
|
6119 }
|
|
|
6120 else
|
|
|
6121 return 0;
|
|
|
6122 }
|
|
|
6123 else
|
|
|
6124 return 0;
|
|
|
6125 }
|
|
|
6126
|
|
|
6127 /* Return pixel position the middle of the window, not including the
|
|
|
6128 modeline and any potential horizontal scrollbar. */
|
|
|
6129
|
|
|
6130 int
|
|
|
6131 window_half_pixpos (struct window *w)
|
|
|
6132 {
|
|
|
6133 return WINDOW_TEXT_TOP (w) + (WINDOW_TEXT_HEIGHT (w) >> 1);
|
|
|
6134 }
|
|
|
6135
|
|
|
6136 /* Return the display line which is currently in the middle of the
|
|
|
6137 window W for display lines TYPE. */
|
|
|
6138
|
|
|
6139 int
|
|
665
|
6140 line_at_center (struct window *w, int type, Charbpos start, Charbpos point)
|
|
428
|
6141 {
|
|
|
6142 display_line_dynarr *dla;
|
|
|
6143 int half;
|
|
|
6144 int elt;
|
|
|
6145 int first_elt = (MINI_WINDOW_P (w) ? 0 : 1);
|
|
|
6146
|
|
|
6147 if (type == CMOTION_DISP)
|
|
|
6148 regenerate_window (w, start, point, type);
|
|
|
6149
|
|
|
6150 dla = window_display_lines (w, type);
|
|
|
6151 half = window_half_pixpos (w);
|
|
|
6152
|
|
|
6153 for (elt = first_elt; elt < Dynarr_length (dla); elt++)
|
|
|
6154 {
|
|
|
6155 struct display_line *dl = Dynarr_atp (dla, elt);
|
|
|
6156 int line_bot = dl->ypos + dl->descent;
|
|
|
6157
|
|
|
6158 if (line_bot > half)
|
|
|
6159 return elt;
|
|
|
6160 }
|
|
|
6161
|
|
|
6162 /* We may not have a line at the middle if the end of the buffer is
|
|
|
6163 being displayed. */
|
|
|
6164 return -1;
|
|
|
6165 }
|
|
|
6166
|
|
|
6167 /* Return a value for point that would place it at the beginning of
|
|
|
6168 the line which is in the middle of the window. */
|
|
|
6169
|
|
665
|
6170 Charbpos
|
|
|
6171 point_at_center (struct window *w, int type, Charbpos start, Charbpos point)
|
|
428
|
6172 {
|
|
|
6173 /* line_at_center will regenerate the display structures, if necessary. */
|
|
|
6174 int line = line_at_center (w, type, start, point);
|
|
|
6175
|
|
|
6176 if (line == -1)
|
|
|
6177 return BUF_ZV (XBUFFER (w->buffer));
|
|
|
6178 else
|
|
|
6179 {
|
|
|
6180 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
6181 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
6182
|
|
826
|
6183 return dl->charpos;
|
|
428
|
6184 }
|
|
|
6185 }
|
|
|
6186
|
|
|
6187 /* For a given window, ensure that the current visual representation
|
|
|
6188 is accurate. */
|
|
|
6189
|
|
|
6190 static void
|
|
|
6191 redisplay_window (Lisp_Object window, int skip_selected)
|
|
|
6192 {
|
|
|
6193 struct window *w = XWINDOW (window);
|
|
|
6194 struct frame *f = XFRAME (w->frame);
|
|
|
6195 struct device *d = XDEVICE (f->device);
|
|
|
6196 Lisp_Object old_buffer = w->buffer;
|
|
|
6197 Lisp_Object the_buffer = w->buffer;
|
|
|
6198 struct buffer *b;
|
|
|
6199 int echo_active = 0;
|
|
|
6200 int startp = 1;
|
|
|
6201 int pointm;
|
|
|
6202 int old_startp = 1;
|
|
|
6203 int old_pointm = 1;
|
|
|
6204 int selected_in_its_frame;
|
|
|
6205 int selected_globally;
|
|
|
6206 int skip_output = 0;
|
|
|
6207 int truncation_changed;
|
|
|
6208 int inactive_minibuffer =
|
|
|
6209 (MINI_WINDOW_P (w) &&
|
|
|
6210 (f != device_selected_frame (d)) &&
|
|
|
6211 !is_surrogate_for_selected_frame (f));
|
|
|
6212
|
|
|
6213 /* #### In the new world this function actually does a bunch of
|
|
|
6214 optimizations such as buffer-based scrolling, but none of that is
|
|
|
6215 implemented yet. */
|
|
|
6216
|
|
|
6217 /* If this is a combination window, do its children; that's all.
|
|
|
6218 The selected window is always a leaf so we don't check for
|
|
|
6219 skip_selected here. */
|
|
|
6220 if (!NILP (w->vchild))
|
|
|
6221 {
|
|
|
6222 redisplay_windows (w->vchild, skip_selected);
|
|
|
6223 return;
|
|
|
6224 }
|
|
|
6225 if (!NILP (w->hchild))
|
|
|
6226 {
|
|
|
6227 redisplay_windows (w->hchild, skip_selected);
|
|
|
6228 return;
|
|
|
6229 }
|
|
|
6230
|
|
|
6231 /* Is this window the selected window on its frame? */
|
|
|
6232 selected_in_its_frame = (w == XWINDOW (FRAME_SELECTED_WINDOW (f)));
|
|
|
6233 selected_globally =
|
|
|
6234 selected_in_its_frame &&
|
|
|
6235 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
6236 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d &&
|
|
|
6237 XFRAME(DEVICE_SELECTED_FRAME(d)) == f;
|
|
|
6238 if (skip_selected && selected_in_its_frame)
|
|
|
6239 return;
|
|
|
6240
|
|
|
6241 /* It is possible that the window is not fully initialized yet. */
|
|
|
6242 if (NILP (w->buffer))
|
|
|
6243 return;
|
|
|
6244
|
|
|
6245 if (MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
6246 {
|
|
|
6247 w->buffer = the_buffer = Vecho_area_buffer;
|
|
|
6248 echo_active = 1;
|
|
|
6249 }
|
|
|
6250
|
|
|
6251 b = XBUFFER (w->buffer);
|
|
|
6252
|
|
|
6253 if (echo_active)
|
|
|
6254 {
|
|
|
6255 old_pointm = selected_globally
|
|
|
6256 ? BUF_PT (b)
|
|
|
6257 : marker_position (w->pointm[CURRENT_DISP]);
|
|
|
6258 pointm = 1;
|
|
|
6259 }
|
|
|
6260 else
|
|
|
6261 {
|
|
|
6262 if (selected_globally)
|
|
|
6263 {
|
|
|
6264 pointm = BUF_PT (b);
|
|
|
6265 }
|
|
|
6266 else
|
|
|
6267 {
|
|
|
6268 pointm = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
6269
|
|
|
6270 if (pointm < BUF_BEGV (b))
|
|
|
6271 pointm = BUF_BEGV (b);
|
|
|
6272 else if (pointm > BUF_ZV (b))
|
|
|
6273 pointm = BUF_ZV (b);
|
|
|
6274 }
|
|
|
6275 }
|
|
|
6276 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm), the_buffer);
|
|
|
6277
|
|
|
6278 /* If the buffer has changed we have to invalidate all of our face
|
|
|
6279 cache elements. */
|
|
|
6280 if ((!echo_active && b != window_display_buffer (w))
|
|
|
6281 || !Dynarr_length (w->face_cachels)
|
|
|
6282 || f->faces_changed)
|
|
|
6283 reset_face_cachels (w);
|
|
|
6284 else
|
|
|
6285 mark_face_cachels_as_not_updated (w);
|
|
|
6286
|
|
|
6287 /* Ditto the glyph cache elements, although we do *not* invalidate
|
|
|
6288 the cache purely because glyphs have changed - this is now
|
|
|
6289 handled by the dirty flag.*/
|
|
|
6290 if ((!echo_active && b != window_display_buffer (w))
|
|
440
|
6291 || !Dynarr_length (w->glyph_cachels) || f->faces_changed)
|
|
428
|
6292 reset_glyph_cachels (w);
|
|
|
6293 else
|
|
|
6294 mark_glyph_cachels_as_not_updated (w);
|
|
|
6295
|
|
|
6296 /* If the marker's buffer is not the window's buffer, then we need
|
|
|
6297 to find a new starting position. */
|
|
|
6298 if (!MINI_WINDOW_P (w)
|
|
|
6299 && !EQ (Fmarker_buffer (w->start[CURRENT_DISP]), w->buffer))
|
|
|
6300 {
|
|
|
6301 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
|
6302
|
|
|
6303 goto regeneration_done;
|
|
|
6304 }
|
|
|
6305
|
|
|
6306 if (echo_active)
|
|
|
6307 {
|
|
|
6308 old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
6309 startp = 1;
|
|
|
6310 }
|
|
|
6311 else
|
|
|
6312 {
|
|
|
6313 startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
6314 if (startp < BUF_BEGV (b))
|
|
|
6315 startp = BUF_BEGV (b);
|
|
|
6316 else if (startp > BUF_ZV (b))
|
|
|
6317 startp = BUF_ZV (b);
|
|
|
6318 }
|
|
|
6319 Fset_marker (w->start[DESIRED_DISP], make_int (startp), the_buffer);
|
|
|
6320
|
|
|
6321 truncation_changed = (find_window_mirror (w)->truncate_win !=
|
|
647
|
6322 (unsigned int) window_truncation_on (w));
|
|
428
|
6323
|
|
|
6324 /* If w->force_start is set, then some function set w->start and we
|
|
|
6325 should display from there and change point, if necessary, to
|
|
|
6326 ensure that it is visible. */
|
|
|
6327 if (w->force_start || inactive_minibuffer)
|
|
|
6328 {
|
|
|
6329 w->force_start = 0;
|
|
|
6330 w->last_modified[DESIRED_DISP] = Qzero;
|
|
|
6331 w->last_facechange[DESIRED_DISP] = Qzero;
|
|
|
6332
|
|
|
6333 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6334
|
|
|
6335 if (!point_visible (w, pointm, DESIRED_DISP) && !inactive_minibuffer)
|
|
|
6336 {
|
|
|
6337 pointm = point_at_center (w, DESIRED_DISP, 0, 0);
|
|
|
6338
|
|
|
6339 if (selected_globally)
|
|
|
6340 BUF_SET_PT (b, pointm);
|
|
|
6341
|
|
|
6342 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm),
|
|
|
6343 the_buffer);
|
|
|
6344
|
|
|
6345 /* #### BUFU amounts of overkill just to get the cursor
|
|
|
6346 location marked properly. FIX ME FIX ME FIX ME */
|
|
|
6347 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6348 }
|
|
|
6349
|
|
|
6350 goto regeneration_done;
|
|
|
6351 }
|
|
|
6352
|
|
|
6353 /* If nothing has changed since the last redisplay, then we just
|
|
|
6354 need to make sure that point is still visible. */
|
|
|
6355 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
6356 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)
|
|
|
6357 && pointm >= startp
|
|
|
6358 /* This check is to make sure we restore the minibuffer after a
|
|
|
6359 temporary change to the echo area. */
|
|
|
6360 && !(MINI_WINDOW_P (w) && f->buffers_changed)
|
|
|
6361 && !f->frame_changed
|
|
|
6362 && !truncation_changed
|
|
442
|
6363 /* check whether start is really at the beginning of a line GE */
|
|
428
|
6364 && (!w->start_at_line_beg || beginning_of_line_p (b, startp))
|
|
|
6365 )
|
|
|
6366 {
|
|
|
6367 /* Check if the cursor has actually moved. */
|
|
|
6368 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
6369 && pointm == marker_position (w->last_point[CURRENT_DISP])
|
|
|
6370 && selected_globally
|
|
|
6371 && !w->windows_changed
|
|
|
6372 && !f->clip_changed
|
|
|
6373 && !f->extents_changed
|
|
|
6374 && !f->faces_changed
|
|
|
6375 && !f->glyphs_changed
|
|
|
6376 && !f->subwindows_changed
|
|
442
|
6377 /* && !f->subwindows_state_changed*/
|
|
428
|
6378 && !f->point_changed
|
|
|
6379 && !f->windows_structure_changed)
|
|
|
6380 {
|
|
|
6381 /* If not, we're done. */
|
|
|
6382 if (f->modeline_changed)
|
|
|
6383 regenerate_modeline (w);
|
|
|
6384
|
|
|
6385 skip_output = 1;
|
|
|
6386 goto regeneration_done;
|
|
|
6387 }
|
|
|
6388 else
|
|
|
6389 {
|
|
|
6390 /* If the new point is visible in the redisplay structures,
|
|
|
6391 then let the output update routines handle it, otherwise
|
|
|
6392 do things the hard way. */
|
|
|
6393 if (!w->windows_changed
|
|
|
6394 && !f->clip_changed
|
|
|
6395 && !f->extents_changed
|
|
|
6396 && !f->faces_changed
|
|
|
6397 && !f->glyphs_changed
|
|
|
6398 && !f->subwindows_changed
|
|
442
|
6399 /* && !f->subwindows_state_changed*/
|
|
428
|
6400 && !f->windows_structure_changed)
|
|
|
6401 {
|
|
|
6402 if (point_visible (w, pointm, CURRENT_DISP)
|
|
|
6403 && w->last_point_x[CURRENT_DISP] != -1
|
|
|
6404 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
6405 {
|
|
|
6406 if (redisplay_move_cursor (w, pointm, FRAME_TTY_P (f)))
|
|
|
6407 {
|
|
|
6408 /* Always regenerate in case it is displaying
|
|
|
6409 the current line or column. */
|
|
|
6410 regenerate_modeline (w);
|
|
|
6411
|
|
|
6412 skip_output = 1;
|
|
|
6413 goto regeneration_done;
|
|
|
6414 }
|
|
|
6415 }
|
|
|
6416 else if (!selected_in_its_frame && !f->point_changed)
|
|
|
6417 {
|
|
|
6418 if (f->modeline_changed)
|
|
|
6419 regenerate_modeline (w);
|
|
|
6420
|
|
|
6421 skip_output = 1;
|
|
|
6422 goto regeneration_done;
|
|
|
6423 }
|
|
|
6424 }
|
|
|
6425
|
|
|
6426 /* If we weren't able to take the shortcut method, then use
|
|
|
6427 the brute force method. */
|
|
|
6428 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6429
|
|
|
6430 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6431 goto regeneration_done;
|
|
|
6432 }
|
|
|
6433 }
|
|
|
6434
|
|
|
6435 /* Check if the starting point is no longer at the beginning of a
|
|
|
6436 line, in which case find a new starting point. We also recenter
|
|
|
6437 if our start position is equal to point-max. Otherwise we'll end
|
|
|
6438 up with a blank window. */
|
|
|
6439 else if (((w->start_at_line_beg || MINI_WINDOW_P (w))
|
|
|
6440 && !(startp == BUF_BEGV (b)
|
|
|
6441 || BUF_FETCH_CHAR (b, startp - 1) == '\n'))
|
|
|
6442 || (pointm == startp &&
|
|
|
6443 EQ (Fmarker_buffer (w->last_start[CURRENT_DISP]), w->buffer) &&
|
|
|
6444 startp < marker_position (w->last_start[CURRENT_DISP]))
|
|
|
6445 || (startp == BUF_ZV (b)))
|
|
|
6446 {
|
|
|
6447 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
|
6448
|
|
|
6449 goto regeneration_done;
|
|
|
6450 }
|
|
|
6451 /* See if we can update the data structures locally based on
|
|
|
6452 knowledge of what changed in the buffer. */
|
|
|
6453 else if (!w->windows_changed
|
|
|
6454 && !f->clip_changed
|
|
|
6455 && !f->faces_changed
|
|
|
6456 && !f->glyphs_changed
|
|
|
6457 && !f->subwindows_changed
|
|
442
|
6458 /* && !f->subwindows_state_changed*/
|
|
428
|
6459 && !f->windows_structure_changed
|
|
|
6460 && !f->frame_changed
|
|
|
6461 && !truncation_changed
|
|
|
6462 && pointm >= startp
|
|
|
6463 && regenerate_window_incrementally (w, startp, pointm))
|
|
|
6464 {
|
|
|
6465 if (f->modeline_changed
|
|
|
6466 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b)
|
|
|
6467 || XINT (w->last_facechange[CURRENT_DISP]) < BUF_FACECHANGE (b))
|
|
|
6468 regenerate_modeline (w);
|
|
|
6469
|
|
|
6470 skip_output = 1;
|
|
|
6471 goto regeneration_done;
|
|
|
6472 }
|
|
|
6473 /* #### This is where a check for structure based scrolling would go. */
|
|
|
6474 /* If all else fails, try just regenerating and see what happens. */
|
|
|
6475 else
|
|
|
6476 {
|
|
|
6477 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6478
|
|
|
6479 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6480 goto regeneration_done;
|
|
|
6481 }
|
|
|
6482
|
|
|
6483 /* We still haven't gotten the window regenerated with point
|
|
|
6484 visible. Next we try scrolling a little and see if point comes
|
|
|
6485 back onto the screen. */
|
|
|
6486 if (scroll_step > 0)
|
|
|
6487 {
|
|
|
6488 int scrolled = scroll_conservatively;
|
|
|
6489 for (; scrolled >= 0; scrolled -= scroll_step)
|
|
|
6490 {
|
|
|
6491 startp = vmotion (w, startp,
|
|
|
6492 (pointm < startp) ? -scroll_step : scroll_step, 0);
|
|
|
6493 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6494
|
|
|
6495 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6496 goto regeneration_done;
|
|
|
6497 }
|
|
|
6498 }
|
|
|
6499
|
|
|
6500 /* We still haven't managed to get the screen drawn with point on
|
|
|
6501 the screen, so just center it and be done with it. */
|
|
|
6502 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
|
6503
|
|
|
6504
|
|
|
6505 regeneration_done:
|
|
|
6506
|
|
|
6507 /* If the window's frame is changed then reset the current display
|
|
|
6508 lines in order to force a full repaint. */
|
|
|
6509 if (f->frame_changed)
|
|
|
6510 {
|
|
|
6511 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
|
|
|
6512
|
|
|
6513 Dynarr_reset (cla);
|
|
|
6514 }
|
|
|
6515
|
|
|
6516 /* Must do this before calling redisplay_output_window because it
|
|
|
6517 sets some markers on the window. */
|
|
|
6518 if (echo_active)
|
|
|
6519 {
|
|
|
6520 w->buffer = old_buffer;
|
|
|
6521 Fset_marker (w->pointm[DESIRED_DISP], make_int (old_pointm), old_buffer);
|
|
|
6522 Fset_marker (w->start[DESIRED_DISP], make_int (old_startp), old_buffer);
|
|
|
6523 }
|
|
|
6524
|
|
|
6525 /* These also have to be set before calling redisplay_output_window
|
|
|
6526 since it sets the CURRENT_DISP values based on them. */
|
|
|
6527 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
6528 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
6529 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
6530 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
6531
|
|
|
6532 if (!skip_output)
|
|
|
6533 {
|
|
665
|
6534 Charbpos start = marker_position (w->start[DESIRED_DISP]);
|
|
|
6535 Charbpos end = (w->window_end_pos[DESIRED_DISP] == -1
|
|
428
|
6536 ? BUF_ZV (b)
|
|
|
6537 : BUF_Z (b) - w->window_end_pos[DESIRED_DISP] - 1);
|
|
|
6538 /* Don't pollute the cache if not sure if we are correct */
|
|
|
6539 if (w->start_at_line_beg)
|
|
|
6540 update_line_start_cache (w, start, end, pointm, 1);
|
|
|
6541 redisplay_output_window (w);
|
|
|
6542 /*
|
|
|
6543 * If we just displayed the echo area, the line start cache is
|
|
|
6544 * no longer valid, because the minibuffer window is associated
|
|
|
6545 * with the window now.
|
|
|
6546 */
|
|
|
6547 if (echo_active)
|
|
|
6548 w->line_cache_last_updated = make_int (-1);
|
|
|
6549 }
|
|
|
6550
|
|
|
6551 /* #### This should be dependent on face changes and will need to be
|
|
|
6552 somewhere else once tty updates occur on a per-frame basis. */
|
|
|
6553 mark_face_cachels_as_clean (w);
|
|
|
6554
|
|
438
|
6555 /* The glyph cachels only get dirty if someone changed something.
|
|
|
6556 Since redisplay has now effectively ended we can reset the dirty
|
|
|
6557 flag since everything must be up-to-date. */
|
|
428
|
6558 if (glyphs_changed)
|
|
|
6559 mark_glyph_cachels_as_clean (w);
|
|
|
6560
|
|
|
6561 w->windows_changed = 0;
|
|
|
6562 }
|
|
|
6563
|
|
|
6564 /* Call buffer_reset_changes for all buffers present in any window
|
|
|
6565 currently visible in all frames on all devices. #### There has to
|
|
|
6566 be a better way to do this. */
|
|
|
6567
|
|
|
6568 static int
|
|
2286
|
6569 reset_buffer_changes_mapfun (struct window *w, void *UNUSED (closure))
|
|
428
|
6570 {
|
|
|
6571 buffer_reset_changes (XBUFFER (w->buffer));
|
|
|
6572 return 0;
|
|
|
6573 }
|
|
|
6574
|
|
|
6575 static void
|
|
|
6576 reset_buffer_changes (void)
|
|
|
6577 {
|
|
|
6578 Lisp_Object frmcons, devcons, concons;
|
|
|
6579
|
|
|
6580 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
6581 {
|
|
|
6582 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
6583
|
|
|
6584 if (FRAME_REPAINT_P (f))
|
|
|
6585 map_windows (f, reset_buffer_changes_mapfun, 0);
|
|
|
6586 }
|
|
|
6587 }
|
|
|
6588
|
|
|
6589 /* Ensure that all windows underneath the given window in the window
|
|
|
6590 hierarchy are correctly displayed. */
|
|
|
6591
|
|
|
6592 static void
|
|
|
6593 redisplay_windows (Lisp_Object window, int skip_selected)
|
|
|
6594 {
|
|
|
6595 for (; !NILP (window) ; window = XWINDOW (window)->next)
|
|
|
6596 {
|
|
|
6597 redisplay_window (window, skip_selected);
|
|
|
6598 }
|
|
|
6599 }
|
|
|
6600
|
|
1318
|
6601 /* Register an action to be called at the end of redisplay.
|
|
|
6602 in_display is 0 when this is called.
|
|
|
6603 This is used when it is discovered that an action needs to be taken,
|
|
|
6604 but it's during redisplay, so it's not safe. (Typically, it's an action
|
|
|
6605 that needs to enter redisplay, which can't happen reentrantly.)
|
|
|
6606
|
|
|
6607 NEVER signal an error in these functions.
|
|
|
6608 */
|
|
|
6609
|
|
|
6610 void
|
|
|
6611 register_post_redisplay_action (void (*fun) (Lisp_Object), Lisp_Object arg)
|
|
|
6612 {
|
|
|
6613 Vpost_redisplay_actions = nconc2 (Vpost_redisplay_actions,
|
|
|
6614 list1 (Fcons (make_opaque_ptr
|
|
|
6615 ((void *) fun), arg)));
|
|
|
6616 }
|
|
|
6617
|
|
1320
|
6618 static int running_post_redisplay_actions;
|
|
|
6619
|
|
1318
|
6620 static void
|
|
|
6621 run_post_redisplay_actions (void)
|
|
|
6622 {
|
|
1320
|
6623 int depth;
|
|
|
6624
|
|
|
6625 if (running_post_redisplay_actions)
|
|
|
6626 return;
|
|
|
6627
|
|
|
6628 depth = internal_bind_int (&running_post_redisplay_actions, 1);
|
|
|
6629 /* If the function pushes further actions, they will be tacked onto
|
|
|
6630 the end of the list, and we'll run them when we're done with the
|
|
|
6631 current ones. */
|
|
1318
|
6632 while (!NILP (Vpost_redisplay_actions))
|
|
|
6633 {
|
|
|
6634 Lisp_Object car = XCAR (Vpost_redisplay_actions);
|
|
|
6635 void (*fun) (Lisp_Object) =
|
|
|
6636 (void (*)(Lisp_Object)) get_opaque_ptr (XCAR (car));
|
|
|
6637 (*fun) (XCDR (car));
|
|
|
6638 free_opaque_ptr (XCAR (car));
|
|
|
6639 free_cons (car);
|
|
|
6640 Vpost_redisplay_actions = XCDR (Vpost_redisplay_actions);
|
|
|
6641 }
|
|
1320
|
6642 unbind_to (depth);
|
|
1318
|
6643 }
|
|
|
6644
|
|
|
6645 #ifdef ERROR_CHECK_TRAPPING_PROBLEMS
|
|
|
6646
|
|
|
6647 static Lisp_Object
|
|
2286
|
6648 commit_ritual_suicide (Lisp_Object UNUSED (ceci_nest_pas_une_pipe))
|
|
1318
|
6649 {
|
|
|
6650 assert (!in_display);
|
|
|
6651 return Qnil;
|
|
|
6652 }
|
|
|
6653
|
|
|
6654 #endif
|
|
|
6655
|
|
|
6656 /* Within the guts of redisplay, we are defenseless and cannot allow any of
|
|
|
6657 the following to happen:
|
|
|
6658
|
|
|
6659 1) garbage collection
|
|
|
6660 2) QUIT
|
|
|
6661 3) any non-local exits
|
|
|
6662 4) frame size changes
|
|
|
6663 5) deletion of any buffers, windows, frames, etc.
|
|
|
6664 6) modification of buffer text
|
|
|
6665 7) reentrant entry of redisplay (see the stack trace above
|
|
|
6666 generate_displayable_area())
|
|
|
6667
|
|
|
6668 The general reason is that the redisplay code is written to assume that
|
|
|
6669 it is the only code running, and thus (a) cannot tolerate structures
|
|
|
6670 changed out from under it (hence 1, 4, 5, 6, 7) and (b) at various points
|
|
|
6671 within redisplay the redisplay structures may be in an inconsistent
|
|
|
6672 state and there are no unwind-protects to clean the structures up in
|
|
|
6673 case of non-local exit (hence 2, 3). Fixing redisplay to address these
|
|
|
6674 issues is hard and perhaps not worth it (and might slow things down a
|
|
|
6675 fair amount). We address 1, 4, 5 and 6 ourselves inside of
|
|
|
6676 enter_redisplay_critical_section() by simply inhibiting them, but we
|
|
|
6677 cannot handle 2 and 3, which must be handled at the actual point where
|
|
|
6678 they may occur (especially, internal_equal() or any place that may call
|
|
|
6679 Lisp), by wrapping the code in call_trapping_problems() or
|
|
|
6680 call_with_suspended_errors(). [[ NOTE: We could address QUIT by inhibiting
|
|
|
6681 it but this would be anti-social because it would prevent the user from
|
|
|
6682 interrupting any Lisp code called within the critical section. With the
|
|
|
6683 call_*() wrapping, C-g will interrupt the Lisp code and throw back to
|
|
|
6684 the innermost wrapping. ]] In fact we do turn off QUIT handling, since
|
|
|
6685 it's just too dangerous otherwise. See below.
|
|
|
6686
|
|
|
6687 Code calling enter_redisplay_critical_section() must check for reentrancy
|
|
|
6688 (#7) and take appropriate corrective action.
|
|
|
6689
|
|
|
6690 To help debug potential problems, we arrange (when
|
|
|
6691 ERROR_CHECK_TRAPPING_PROBLEMS is set) to crash automatically every time
|
|
|
6692 we execute QUIT or call Lisp code unless proper wrapping is in place, as
|
|
|
6693 well as further checks when we actually Fsignal(), Fthrow(),
|
|
|
6694 garbage_collect_1().
|
|
|
6695
|
|
|
6696 #### If a frame-size change does occur we should probably actually be
|
|
|
6697 preempting redisplay. */
|
|
|
6698
|
|
|
6699 /* Count of number of recursive times we call
|
|
|
6700 enter_redisplay_critical_section() or
|
|
|
6701 enter_redisplay_critical_section_maybe().
|
|
|
6702 enter_redisplay_critical_section() cannot occur reentrantly but we have
|
|
|
6703 to know in the *maybe() version whether to exit the section when we're
|
|
|
6704 done. */
|
|
|
6705 static int in_display_nesting;
|
|
|
6706
|
|
|
6707 static Lisp_Object
|
|
2286
|
6708 end_hold_frame_size_changes (Lisp_Object UNUSED (obj))
|
|
1318
|
6709 {
|
|
|
6710 if (!hold_frame_size_changes)
|
|
|
6711 {
|
|
|
6712 /* we used to have a function to do this for only one frame, and
|
|
|
6713 it was typical to call it at the end of a critical section
|
|
|
6714 (which occurs once per frame); but what then happens if multiple
|
|
|
6715 frames have frame changes held up?
|
|
|
6716
|
|
|
6717 This means we are O(N^2) over frames. I seriously doubt it matters.
|
|
|
6718 --ben */
|
|
|
6719 Lisp_Object frmcons, devcons, concons;
|
|
|
6720
|
|
|
6721 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
6722 {
|
|
|
6723 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
6724 if (f->size_change_pending)
|
|
|
6725 change_frame_size (f, f->new_height, f->new_width, 0);
|
|
|
6726 }
|
|
|
6727 }
|
|
|
6728 return Qnil;
|
|
|
6729 }
|
|
|
6730
|
|
|
6731 /* Call this to temporarily prevent frame-size changes from being processed.
|
|
|
6732 To undo, use unbind_to(), passing it the value returned by this function.
|
|
|
6733 */
|
|
|
6734
|
|
|
6735 int
|
|
|
6736 begin_hold_frame_size_changes (void)
|
|
|
6737 {
|
|
|
6738 int depth = specpdl_depth ();
|
|
|
6739 record_unwind_protect (end_hold_frame_size_changes, Qnil);
|
|
|
6740 internal_bind_int (&hold_frame_size_changes, 1 + hold_frame_size_changes);
|
|
|
6741 return depth;
|
|
|
6742 }
|
|
|
6743
|
|
|
6744 int
|
|
|
6745 enter_redisplay_critical_section (void)
|
|
|
6746 {
|
|
|
6747 int depth = specpdl_depth ();
|
|
|
6748
|
|
|
6749 /* Reentrant entry is deadly. The calling function must check for this. */
|
|
|
6750 assert (!in_display);
|
|
|
6751 begin_hold_frame_size_changes ();
|
|
|
6752 /* Make sure in_display gets reset, but don't set it yet so that
|
|
|
6753 commit_ritual_suicide() can be used. */
|
|
|
6754 internal_bind_int (&in_display, 0);
|
|
|
6755 internal_bind_int (&in_display_nesting, 1 + in_display_nesting);
|
|
|
6756 #ifdef ERROR_CHECK_TRAPPING_PROBLEMS
|
|
|
6757 /* Force every call to QUIT to check for in_displayness. This will
|
|
|
6758 verify proper wrapping, as in the previous comment, aborting if not. */
|
|
|
6759 something_happened++;
|
|
|
6760 /* Verify that no nonlocal exits blow past us. */
|
|
|
6761 record_unwind_protect (commit_ritual_suicide, Qnil);
|
|
|
6762 #endif
|
|
|
6763 in_display++;
|
|
|
6764
|
|
|
6765 set_trapping_problems_flags (INHIBIT_ANY_CHANGE_AFFECTING_REDISPLAY);
|
|
|
6766 /* Even checking for QUIT can cause arbitrary Lisp code to be executed,
|
|
|
6767 e.g. through a menu handler. We really don't want that happening
|
|
|
6768 inside of redisplay. Code that we `eval' is at least written with the
|
|
|
6769 expectation that it's inside of redisplay, and shouldn't try anything
|
|
|
6770 weird; but that's not the case for menu code (e.g. custom loads huge
|
|
|
6771 amounts of LISP FILES from a menu handler! FMH!). Safest just to turn
|
|
|
6772 this off. We could turn it on using UNINHIBIT_QUIT or
|
|
|
6773 begin_do_check_for_quit() in certain places if we want, if we know
|
|
|
6774 it's not in an especially tricky place. */
|
|
|
6775 begin_dont_check_for_quit ();
|
|
|
6776 return depth;
|
|
|
6777 }
|
|
|
6778
|
|
|
6779 void
|
|
|
6780 exit_redisplay_critical_section (int depth)
|
|
|
6781 {
|
|
|
6782 in_display--;
|
|
|
6783 assert (!in_display);
|
|
|
6784 unbind_to (depth);
|
|
|
6785
|
|
|
6786 run_post_redisplay_actions ();
|
|
|
6787 }
|
|
|
6788
|
|
|
6789 /* Enter the redisplay critical section if we're not already in it. This
|
|
|
6790 is for code that needs frame changes held up and other protections from
|
|
|
6791 being inside, but doesn't modify the redisplay structures, and doesn't
|
|
|
6792 look at them in a way that they will be confused by inconsistencies. */
|
|
|
6793
|
|
|
6794 int
|
|
|
6795 enter_redisplay_critical_section_maybe (void)
|
|
|
6796 {
|
|
|
6797 if (!in_display)
|
|
|
6798 return enter_redisplay_critical_section ();
|
|
|
6799 else
|
|
|
6800 return internal_bind_int (&in_display_nesting, 1 + in_display_nesting);
|
|
|
6801 }
|
|
|
6802
|
|
|
6803 void
|
|
|
6804 exit_redisplay_critical_section_maybe (int depth)
|
|
|
6805 {
|
|
|
6806 if (in_display_nesting == 1)
|
|
|
6807 exit_redisplay_critical_section (depth);
|
|
|
6808 else
|
|
|
6809 unbind_to (depth);
|
|
|
6810 }
|
|
|
6811
|
|
1279
|
6812 /* Ensure that all windows on the given frame are correctly displayed.
|
|
|
6813 Return non-zero if pre-empted. */
|
|
428
|
6814
|
|
442
|
6815 int
|
|
428
|
6816 redisplay_frame (struct frame *f, int preemption_check)
|
|
|
6817 {
|
|
|
6818 struct device *d = XDEVICE (f->device);
|
|
853
|
6819 int depth;
|
|
428
|
6820
|
|
1279
|
6821 assert (f->init_finished);
|
|
|
6822
|
|
1318
|
6823 /* NOTE: Without sufficient checks for stream frames, we got weird
|
|
|
6824 crashes in pdump. These came and went very easily -- adding the
|
|
|
6825 critical-section code for redisplay was enough to trigger them.
|
|
|
6826 Perhaps I should have debugged them but there didn't seem to be any
|
|
|
6827 point. --ben */
|
|
1279
|
6828 if (FRAME_STREAM_P (f)) /* nothing to do */
|
|
|
6829 return 0;
|
|
|
6830
|
|
1318
|
6831 /* Reentrancy into redisplay can be deadly. See stack trace above
|
|
|
6832 generate_displayable_area(). */
|
|
|
6833 if (in_display)
|
|
|
6834 return 1;
|
|
|
6835
|
|
545
|
6836 if (preemption_check
|
|
|
6837 && !DEVICE_IMPL_FLAG (d, XDEVIMPF_DONT_PREEMPT_REDISPLAY))
|
|
428
|
6838 {
|
|
|
6839 /* The preemption check itself takes a lot of time,
|
|
|
6840 so normally don't do it here. We do it if called
|
|
|
6841 from Lisp, though (`redisplay-frame'). */
|
|
|
6842 int preempted;
|
|
|
6843
|
|
|
6844 REDISPLAY_PREEMPTION_CHECK;
|
|
|
6845 if (preempted)
|
|
|
6846 return 1;
|
|
|
6847 }
|
|
|
6848
|
|
442
|
6849 if (!internal_equal (f->old_buffer_alist, f->buffer_alist, 0))
|
|
|
6850 {
|
|
|
6851 Lisp_Object frame;
|
|
|
6852
|
|
|
6853 f->old_buffer_alist = Freplace_list (f->old_buffer_alist,
|
|
|
6854 f->buffer_alist);
|
|
793
|
6855 frame = wrap_frame (f);
|
|
442
|
6856 va_run_hook_with_args (Qbuffer_list_changed_hook, 1, frame);
|
|
|
6857 }
|
|
|
6858
|
|
428
|
6859 /* Before we put a hold on frame size changes, attempt to process
|
|
|
6860 any which are already pending. */
|
|
|
6861 if (f->size_change_pending)
|
|
|
6862 change_frame_size (f, f->new_height, f->new_width, 0);
|
|
|
6863
|
|
|
6864 /* If frame size might need to be changed, due to changed size
|
|
|
6865 of toolbars, scrollbars etc, change it now */
|
|
|
6866 if (f->size_slipped)
|
|
|
6867 {
|
|
|
6868 adjust_frame_size (f);
|
|
|
6869 assert (!f->size_slipped);
|
|
|
6870 }
|
|
|
6871
|
|
1318
|
6872 /* The menubar, toolbar, and icon updates should be done before
|
|
853
|
6873 enter_redisplay_critical_section is called and we are officially
|
|
3025
|
6874 `in_display'. They is because they tend to eval Lisp code, which
|
|
1318
|
6875 needs to be carefully wrapped within the critical section (and hence
|
|
|
6876 is difficult to debug). */
|
|
428
|
6877
|
|
|
6878 #ifdef HAVE_MENUBARS
|
|
|
6879 /* Update the menubar. It is done first since it could change
|
|
|
6880 the menubar's visibility. This way we avoid having flashing
|
|
|
6881 caused by an Expose event generated by the visibility change
|
|
|
6882 being handled. */
|
|
|
6883 update_frame_menubars (f);
|
|
|
6884 #endif /* HAVE_MENUBARS */
|
|
|
6885 #ifdef HAVE_TOOLBARS
|
|
905
|
6886 /* Update the toolbars geometry. We don't update the toolbars
|
|
|
6887 themselves at this point since the space they are trying to
|
|
|
6888 occupy may currently by occupied by gutter elements. Instead we
|
|
|
6889 update the geometry, then update the gutter geometry, then update
|
|
|
6890 the gutters - which will cause mapped windows to be repositioned
|
|
|
6891 - and finally update the toolbars. */
|
|
|
6892 update_frame_toolbars_geometry (f);
|
|
428
|
6893 #endif /* HAVE_TOOLBARS */
|
|
442
|
6894 /* Gutter update proper has to be done inside display when no frame
|
|
|
6895 size changes can occur, thus we separately update the gutter
|
|
|
6896 geometry here if it needs it. */
|
|
|
6897 update_frame_gutter_geometry (f);
|
|
428
|
6898
|
|
|
6899 /* If we clear the frame we have to force its contents to be redrawn. */
|
|
|
6900 if (f->clear)
|
|
|
6901 f->frame_changed = 1;
|
|
|
6902
|
|
442
|
6903 /* Invalidate the subwindow caches. We use subwindows_changed here
|
|
|
6904 to cause subwindows to get instantiated. This is because
|
|
428
|
6905 subwindows_state_changed is less strict - dealing with things
|
|
|
6906 like the clicked state of button. We have to do this before
|
|
|
6907 redisplaying the gutters as subwindows get unmapped in the
|
|
|
6908 process.*/
|
|
442
|
6909 if (f->frame_changed)
|
|
|
6910 reset_frame_subwindow_instance_cache (f);
|
|
|
6911
|
|
|
6912 if (f->frame_changed || f->subwindows_changed)
|
|
|
6913 {
|
|
428
|
6914 /* we have to do this so the gutter gets regenerated. */
|
|
|
6915 reset_gutter_display_lines (f);
|
|
|
6916 }
|
|
|
6917
|
|
853
|
6918 depth = enter_redisplay_critical_section ();
|
|
428
|
6919
|
|
|
6920 /* ----------------- BEGIN CRITICAL REDISPLAY SECTION ---------------- */
|
|
1318
|
6921
|
|
|
6922 /* See comments in enter_redisplay_critical_section() */
|
|
428
|
6923
|
|
442
|
6924 MAYBE_DEVMETH (d, frame_output_begin, (f));
|
|
|
6925
|
|
|
6926 /* We can now update the gutters, safe in the knowledge that our
|
|
|
6927 efforts won't get undone. */
|
|
|
6928
|
|
|
6929 /* This can call lisp, but redisplay is protected by binding
|
|
|
6930 inhibit_quit. More importantly the code involving display lines
|
|
|
6931 *assumes* that GC will not happen and so does not GCPRO
|
|
|
6932 anything. Since we use this code the whole time with the gutters
|
|
1318
|
6933 we cannot allow GC to happen when manipulating the gutters.
|
|
|
6934
|
|
|
6935 This must be inside of the critical section for various reasons.
|
|
|
6936 For example, it messes with display structures, which be left in
|
|
|
6937 an inconsistent state. */
|
|
442
|
6938 update_frame_gutters (f);
|
|
|
6939
|
|
428
|
6940 /* Erase the frame before outputting its contents. */
|
|
|
6941 if (f->clear)
|
|
|
6942 {
|
|
442
|
6943 MAYBE_DEVMETH (d, clear_frame, (f));
|
|
428
|
6944 }
|
|
|
6945
|
|
|
6946 /* Do the selected window first. */
|
|
|
6947 redisplay_window (FRAME_SELECTED_WINDOW (f), 0);
|
|
|
6948
|
|
|
6949 /* Then do the rest. */
|
|
|
6950 redisplay_windows (f->root_window, 1);
|
|
|
6951
|
|
442
|
6952 MAYBE_DEVMETH (d, frame_output_end, (f));
|
|
428
|
6953
|
|
|
6954 update_frame_title (f);
|
|
|
6955
|
|
905
|
6956 #ifdef HAVE_TOOLBARS
|
|
|
6957 /* Finally update the toolbars. It seems its possible to get in a
|
|
|
6958 cycle between updating the gutter and the toolbars. Basically we
|
|
|
6959 want to end up with both being up-to-date and this doesn't seem
|
|
|
6960 possible in a single pass. */
|
|
|
6961 update_frame_toolbars (f);
|
|
|
6962 #endif /* HAVE_TOOLBARS */
|
|
|
6963
|
|
428
|
6964 CLASS_RESET_CHANGED_FLAGS (f);
|
|
|
6965 f->window_face_cache_reset = 0;
|
|
|
6966 f->echo_area_garbaged = 0;
|
|
|
6967 f->clear = 0;
|
|
|
6968
|
|
|
6969 if (!f->size_change_pending)
|
|
|
6970 f->size_changed = 0;
|
|
|
6971
|
|
|
6972 /* ----------------- END CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
6973
|
|
853
|
6974 /* Allow frame size changes to occur again. */
|
|
|
6975 exit_redisplay_critical_section (depth);
|
|
428
|
6976
|
|
|
6977 return 0;
|
|
|
6978 }
|
|
|
6979
|
|
440
|
6980 /* Ensure that all frames on the given device are correctly displayed.
|
|
|
6981 If AUTOMATIC is non-zero, and the device implementation indicates
|
|
|
6982 no automatic redisplay, as printers do, then the device is not
|
|
|
6983 redisplayed. AUTOMATIC is set to zero when called from lisp
|
|
|
6984 functions (redraw-device) and (redisplay-device), and to non-zero
|
|
|
6985 when called from "lazy" redisplay();
|
|
|
6986 */
|
|
428
|
6987
|
|
|
6988 static int
|
|
440
|
6989 redisplay_device (struct device *d, int automatic)
|
|
428
|
6990 {
|
|
|
6991 Lisp_Object frame, frmcons;
|
|
|
6992 int size_change_failed = 0;
|
|
|
6993 struct frame *f;
|
|
|
6994
|
|
545
|
6995 if (automatic && DEVICE_IMPL_FLAG (d, XDEVIMPF_NO_AUTO_REDISPLAY))
|
|
440
|
6996 return 0;
|
|
|
6997
|
|
428
|
6998 if (DEVICE_STREAM_P (d)) /* nothing to do */
|
|
|
6999 return 0;
|
|
|
7000
|
|
|
7001 /* It is possible that redisplay has been called before the
|
|
545
|
7002 device is fully initialized, or that the console implementation
|
|
|
7003 allows frameless devices. If so then continue with the next
|
|
|
7004 device. */
|
|
428
|
7005 if (NILP (DEVICE_SELECTED_FRAME (d)))
|
|
|
7006 return 0;
|
|
|
7007
|
|
545
|
7008 if (!DEVICE_IMPL_FLAG (d, XDEVIMPF_DONT_PREEMPT_REDISPLAY))
|
|
|
7009 {
|
|
|
7010 int preempted;
|
|
|
7011 REDISPLAY_PREEMPTION_CHECK;
|
|
|
7012 if (preempted)
|
|
|
7013 return 1;
|
|
|
7014 }
|
|
428
|
7015
|
|
|
7016 /* Always do the selected frame first. */
|
|
|
7017 frame = DEVICE_SELECTED_FRAME (d);
|
|
|
7018
|
|
|
7019 f = XFRAME (frame);
|
|
|
7020
|
|
|
7021 if (f->icon_changed || f->windows_changed)
|
|
|
7022 update_frame_icon (f);
|
|
|
7023
|
|
|
7024 if (FRAME_REPAINT_P (f))
|
|
|
7025 {
|
|
|
7026 if (CLASS_REDISPLAY_FLAGS_CHANGEDP(f))
|
|
|
7027 {
|
|
588
|
7028 int preempted = redisplay_frame (f, 1);
|
|
545
|
7029 if (preempted)
|
|
|
7030 return 1;
|
|
|
7031 }
|
|
428
|
7032
|
|
|
7033 /* If the frame redisplay did not get preempted, then this flag
|
|
|
7034 should have gotten set to 0. It might be possible for that
|
|
|
7035 not to happen if a size change event were to occur at an odd
|
|
|
7036 time. To make sure we don't miss anything we simply don't
|
|
|
7037 reset the top level flags until the condition ends up being
|
|
|
7038 in the right state. */
|
|
|
7039 if (f->size_changed)
|
|
|
7040 size_change_failed = 1;
|
|
|
7041 }
|
|
|
7042
|
|
|
7043 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
7044 {
|
|
|
7045 f = XFRAME (XCAR (frmcons));
|
|
|
7046
|
|
|
7047 if (f == XFRAME (DEVICE_SELECTED_FRAME (d)))
|
|
|
7048 continue;
|
|
|
7049
|
|
|
7050 if (f->icon_changed || f->windows_changed)
|
|
|
7051 update_frame_icon (f);
|
|
|
7052
|
|
|
7053 if (FRAME_REPAINT_P (f))
|
|
|
7054 {
|
|
430
|
7055 if (CLASS_REDISPLAY_FLAGS_CHANGEDP (f))
|
|
428
|
7056 {
|
|
588
|
7057 int preempted = redisplay_frame (f, 1);
|
|
545
|
7058 if (preempted)
|
|
|
7059 return 1;
|
|
428
|
7060 }
|
|
|
7061
|
|
|
7062 if (f->size_change_pending)
|
|
|
7063 size_change_failed = 1;
|
|
|
7064 }
|
|
|
7065 }
|
|
|
7066
|
|
|
7067 /* If we get here then we redisplayed all of our frames without
|
|
|
7068 getting preempted so mark ourselves as clean. */
|
|
|
7069 CLASS_RESET_CHANGED_FLAGS (d);
|
|
|
7070
|
|
|
7071 if (!size_change_failed)
|
|
|
7072 d->size_changed = 0;
|
|
|
7073
|
|
|
7074 return 0;
|
|
|
7075 }
|
|
|
7076
|
|
|
7077 /* Ensure that all windows on all frames on all devices are displaying
|
|
|
7078 the current contents of their respective buffers. */
|
|
|
7079
|
|
|
7080 static void
|
|
|
7081 redisplay_without_hooks (void)
|
|
|
7082 {
|
|
|
7083 Lisp_Object devcons, concons;
|
|
|
7084 int size_change_failed = 0;
|
|
1292
|
7085 PROFILE_DECLARE ();
|
|
|
7086
|
|
|
7087 PROFILE_RECORD_ENTERING_SECTION (QSin_redisplay);
|
|
428
|
7088
|
|
|
7089 if (asynch_device_change_pending)
|
|
|
7090 handle_asynch_device_change ();
|
|
|
7091
|
|
|
7092 if (!GLOBAL_REDISPLAY_FLAGS_CHANGEDP &&
|
|
430
|
7093 !disable_preemption && preemption_count < max_preempts)
|
|
428
|
7094 goto done;
|
|
|
7095
|
|
|
7096 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
7097 {
|
|
|
7098 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
7099 int preempted;
|
|
|
7100
|
|
430
|
7101 if (CLASS_REDISPLAY_FLAGS_CHANGEDP (d))
|
|
428
|
7102 {
|
|
440
|
7103 preempted = redisplay_device (d, 1);
|
|
428
|
7104
|
|
|
7105 if (preempted)
|
|
|
7106 {
|
|
|
7107 preemption_count++;
|
|
|
7108 RESET_CHANGED_SET_FLAGS;
|
|
|
7109 goto done;
|
|
|
7110 }
|
|
|
7111
|
|
|
7112 /* See comment in redisplay_device. */
|
|
|
7113 if (d->size_changed)
|
|
|
7114 size_change_failed = 1;
|
|
|
7115 }
|
|
|
7116 }
|
|
|
7117 preemption_count = 0;
|
|
|
7118
|
|
|
7119 /* Mark redisplay as accurate */
|
|
|
7120 GLOBAL_RESET_CHANGED_FLAGS;
|
|
|
7121 RESET_CHANGED_SET_FLAGS;
|
|
|
7122
|
|
|
7123 if (faces_changed)
|
|
|
7124 {
|
|
|
7125 mark_all_faces_as_clean ();
|
|
|
7126 faces_changed = 0;
|
|
|
7127 }
|
|
|
7128
|
|
|
7129 if (!size_change_failed)
|
|
|
7130 size_changed = 0;
|
|
|
7131
|
|
|
7132 reset_buffer_changes ();
|
|
|
7133
|
|
|
7134 done:
|
|
800
|
7135 #ifdef ERROR_CHECK_DISPLAY
|
|
|
7136 sledgehammer_check_redisplay_structs ();
|
|
|
7137 #endif /* ERROR_CHECK_DISPLAY */
|
|
1292
|
7138
|
|
|
7139 PROFILE_RECORD_EXITING_SECTION (QSin_redisplay);
|
|
428
|
7140 }
|
|
|
7141
|
|
1318
|
7142 /* Note: All places in the C code that call redisplay() are prepared to
|
|
|
7143 handle GCing, which can happen from run_pre_idle_hook(). However, we
|
|
|
7144 can't currently handle GC inside the guts of redisplay; see
|
|
|
7145 enter_redisplay_critical_section().
|
|
853
|
7146
|
|
|
7147 (#### What about other external entry points to the redisplay code?
|
|
|
7148 Someone should go through and make sure that all callers can handle
|
|
|
7149 GC there, too.)
|
|
|
7150 */
|
|
|
7151
|
|
428
|
7152 void
|
|
|
7153 redisplay (void)
|
|
|
7154 {
|
|
853
|
7155 run_pre_idle_hook ();
|
|
|
7156 redisplay_no_pre_idle_hook ();
|
|
|
7157 }
|
|
|
7158
|
|
|
7159 void
|
|
|
7160 redisplay_no_pre_idle_hook (void)
|
|
|
7161 {
|
|
428
|
7162 if (last_display_warning_tick != display_warning_tick &&
|
|
|
7163 !inhibit_warning_display)
|
|
|
7164 {
|
|
|
7165 /* If an error occurs during this function, oh well.
|
|
|
7166 If we report another warning, we could get stuck in an
|
|
|
7167 infinite loop reporting warnings. */
|
|
853
|
7168 call0_trapping_problems
|
|
|
7169 (0, Qdisplay_warning_buffer,
|
|
|
7170 INHIBIT_EXISTING_PERMANENT_DISPLAY_OBJECT_DELETION);
|
|
428
|
7171 last_display_warning_tick = display_warning_tick;
|
|
|
7172 }
|
|
|
7173
|
|
|
7174 redisplay_without_hooks ();
|
|
|
7175 }
|
|
|
7176
|
|
853
|
7177 Lisp_Object
|
|
|
7178 eval_within_redisplay (Lisp_Object dont_trust_this_damn_sucker)
|
|
|
7179 {
|
|
|
7180 return
|
|
|
7181 eval_in_buffer_trapping_problems
|
|
|
7182 ("Error calling function within redisplay", current_buffer,
|
|
1318
|
7183 dont_trust_this_damn_sucker, 0);
|
|
853
|
7184 }
|
|
428
|
7185
|
|
|
7186 /* Efficiently determine the window line number, and return a pointer
|
|
|
7187 to its printed representation. Do this regardless of whether
|
|
|
7188 line-number-mode is on. The first line in the buffer is counted as
|
|
|
7189 1. If narrowing is in effect, the lines are counted from the
|
|
|
7190 beginning of the visible portion of the buffer. */
|
|
|
7191 static char *
|
|
|
7192 window_line_number (struct window *w, int type)
|
|
|
7193 {
|
|
|
7194 struct device *d = XDEVICE (XFRAME (w->frame)->device);
|
|
|
7195 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7196 /* Be careful in the order of these tests. The first clause will
|
|
|
7197 fail if DEVICE_SELECTED_FRAME == Qnil (since w->frame cannot be).
|
|
|
7198 This can occur when the frame title is computed really early */
|
|
665
|
7199 Charbpos pos =
|
|
428
|
7200 ((EQ(DEVICE_SELECTED_FRAME(d), w->frame) &&
|
|
|
7201 (w == XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame(d)))) &&
|
|
|
7202 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
7203 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d )
|
|
|
7204 ? BUF_PT (b)
|
|
|
7205 : marker_position (w->pointm[type]));
|
|
|
7206 EMACS_INT line;
|
|
|
7207
|
|
|
7208 line = buffer_line_number (b, pos, 1);
|
|
|
7209
|
|
603
|
7210 {
|
|
|
7211 static char window_line_number_buf[DECIMAL_PRINT_SIZE (long)];
|
|
|
7212
|
|
|
7213 long_to_string (window_line_number_buf, line + 1);
|
|
|
7214
|
|
|
7215 return window_line_number_buf;
|
|
|
7216 }
|
|
428
|
7217 }
|
|
|
7218
|
|
|
7219
|
|
|
7220 /* Given a character representing an object in a modeline
|
|
|
7221 specification, return a string (stored into the global array
|
|
867
|
7222 `mode_spec_ibyte_string') with the information that object
|
|
428
|
7223 represents.
|
|
|
7224
|
|
|
7225 This function is largely unchanged from previous versions of the
|
|
|
7226 redisplay engine.
|
|
|
7227
|
|
|
7228 Warning! This code is also used for frame titles and can be called
|
|
|
7229 very early in the device/frame update process! JV
|
|
|
7230 */
|
|
|
7231
|
|
|
7232 static void
|
|
867
|
7233 decode_mode_spec (struct window *w, Ichar spec, int type)
|
|
428
|
7234 {
|
|
|
7235 Lisp_Object obj = Qnil;
|
|
442
|
7236 const char *str = NULL;
|
|
428
|
7237 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7238
|
|
867
|
7239 Dynarr_reset (mode_spec_ibyte_string);
|
|
428
|
7240
|
|
|
7241 switch (spec)
|
|
|
7242 {
|
|
|
7243 /* print buffer name */
|
|
|
7244 case 'b':
|
|
|
7245 obj = b->name;
|
|
|
7246 break;
|
|
|
7247
|
|
|
7248 /* print visited file name */
|
|
|
7249 case 'f':
|
|
|
7250 obj = b->filename;
|
|
|
7251 break;
|
|
|
7252
|
|
|
7253 /* print the current column */
|
|
|
7254 case 'c':
|
|
|
7255 {
|
|
665
|
7256 Charbpos pt = (w == XWINDOW (Fselected_window (Qnil)))
|
|
428
|
7257 ? BUF_PT (b)
|
|
|
7258 : marker_position (w->pointm[type]);
|
|
|
7259 int col = column_at_point (b, pt, 1) + !!column_number_start_at_one;
|
|
603
|
7260 char buf[DECIMAL_PRINT_SIZE (long)];
|
|
428
|
7261
|
|
|
7262 long_to_string (buf, col);
|
|
|
7263
|
|
867
|
7264 Dynarr_add_many (mode_spec_ibyte_string,
|
|
|
7265 (const Ibyte *) buf, strlen (buf));
|
|
428
|
7266
|
|
|
7267 goto decode_mode_spec_done;
|
|
|
7268 }
|
|
|
7269 /* print the file coding system */
|
|
|
7270 case 'C':
|
|
|
7271 {
|
|
|
7272 Lisp_Object codesys = b->buffer_file_coding_system;
|
|
|
7273 /* Be very careful here not to get an error. */
|
|
|
7274 if (NILP (codesys) || SYMBOLP (codesys) || CODING_SYSTEMP (codesys))
|
|
|
7275 {
|
|
771
|
7276 codesys = find_coding_system_for_text_file (codesys, 0);
|
|
428
|
7277 if (CODING_SYSTEMP (codesys))
|
|
|
7278 obj = XCODING_SYSTEM_MNEMONIC (codesys);
|
|
|
7279 }
|
|
|
7280 }
|
|
|
7281 break;
|
|
|
7282
|
|
|
7283 /* print the current line number */
|
|
|
7284 case 'l':
|
|
|
7285 str = window_line_number (w, type);
|
|
|
7286 break;
|
|
|
7287
|
|
|
7288 /* print value of mode-name (obsolete) */
|
|
|
7289 case 'm':
|
|
|
7290 obj = b->mode_name;
|
|
|
7291 break;
|
|
|
7292
|
|
|
7293 /* print hyphen and frame number, if != 1 */
|
|
|
7294 case 'N':
|
|
|
7295 #ifdef HAVE_TTY
|
|
|
7296 {
|
|
|
7297 struct frame *f = XFRAME (w->frame);
|
|
|
7298 if (FRAME_TTY_P (f) && f->order_count > 1 && f->order_count <= 99999999)
|
|
|
7299 {
|
|
|
7300 /* Naughty, naughty */
|
|
|
7301 char * writable_str = alloca_array (char, 10);
|
|
|
7302 sprintf (writable_str, "-%d", f->order_count);
|
|
|
7303 str = writable_str;
|
|
|
7304 }
|
|
|
7305 }
|
|
|
7306 #endif /* HAVE_TTY */
|
|
|
7307 break;
|
|
|
7308
|
|
|
7309 /* print Narrow if appropriate */
|
|
|
7310 case 'n':
|
|
|
7311 if (BUF_BEGV (b) > BUF_BEG (b)
|
|
|
7312 || BUF_ZV (b) < BUF_Z (b))
|
|
|
7313 str = " Narrow";
|
|
|
7314 break;
|
|
|
7315
|
|
|
7316 /* print %, * or hyphen, if buffer is read-only, modified or neither */
|
|
|
7317 case '*':
|
|
|
7318 str = (!NILP (b->read_only)
|
|
|
7319 ? "%"
|
|
|
7320 : ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
7321 ? "*"
|
|
|
7322 : "-"));
|
|
|
7323 break;
|
|
|
7324
|
|
|
7325 /* print * or hyphen -- XEmacs change to allow a buffer to be
|
|
|
7326 read-only but still indicate whether it is modified. */
|
|
|
7327 case '+':
|
|
|
7328 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
7329 ? "*"
|
|
|
7330 : (!NILP (b->read_only)
|
|
|
7331 ? "%"
|
|
|
7332 : "-"));
|
|
|
7333 break;
|
|
|
7334
|
|
|
7335 /* #### defined in 19.29 decode_mode_spec, but not in
|
|
|
7336 modeline-format doc string. */
|
|
|
7337 /* This differs from %* in that it ignores read-only-ness. */
|
|
|
7338 case '&':
|
|
|
7339 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
7340 ? "*"
|
|
|
7341 : "-");
|
|
|
7342 break;
|
|
|
7343
|
|
|
7344 /* print process status */
|
|
|
7345 case 's':
|
|
|
7346 obj = Fget_buffer_process (w->buffer);
|
|
|
7347 if (NILP (obj))
|
|
|
7348 str = GETTEXT ("no process");
|
|
|
7349 else
|
|
|
7350 obj = Fsymbol_name (Fprocess_status (obj));
|
|
|
7351 break;
|
|
|
7352
|
|
|
7353 /* Print name of selected frame. */
|
|
|
7354 case 'S':
|
|
|
7355 obj = XFRAME (w->frame)->name;
|
|
|
7356 break;
|
|
|
7357
|
|
|
7358 /* indicate TEXT or BINARY */
|
|
|
7359 case 't':
|
|
|
7360 /* #### NT does not use this any more. Now what? */
|
|
|
7361 str = "T";
|
|
|
7362 break;
|
|
|
7363
|
|
|
7364 /* print percent of buffer above top of window, or Top, Bot or All */
|
|
|
7365 case 'p':
|
|
|
7366 {
|
|
665
|
7367 Charbpos pos = marker_position (w->start[type]);
|
|
428
|
7368
|
|
|
7369 /* This had better be while the desired lines are being done. */
|
|
|
7370 if (w->window_end_pos[type] <= BUF_Z (b) - BUF_ZV (b))
|
|
|
7371 {
|
|
|
7372 if (pos <= BUF_BEGV (b))
|
|
|
7373 str = "All";
|
|
|
7374 else
|
|
|
7375 str = "Bottom";
|
|
|
7376 }
|
|
|
7377 else if (pos <= BUF_BEGV (b))
|
|
|
7378 str = "Top";
|
|
|
7379 else
|
|
|
7380 {
|
|
|
7381 /* This hard limit is ok since the string it will hold has a
|
|
|
7382 fixed maximum length of 3. But just to be safe... */
|
|
|
7383 char buf[10];
|
|
|
7384 Charcount chars = pos - BUF_BEGV (b);
|
|
|
7385 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
7386
|
|
|
7387 /* Avoid overflow on big buffers */
|
|
|
7388 int percent = total > LONG_MAX/200 ?
|
|
|
7389 (chars + total/200) / (total / 100) :
|
|
|
7390 (chars * 100 + total/2) / total;
|
|
|
7391
|
|
|
7392 /* We can't normally display a 3-digit number, so get us a
|
|
|
7393 2-digit number that is close. */
|
|
|
7394 if (percent == 100)
|
|
|
7395 percent = 99;
|
|
|
7396
|
|
|
7397 sprintf (buf, "%d%%", percent);
|
|
867
|
7398 Dynarr_add_many (mode_spec_ibyte_string, (Ibyte *) buf,
|
|
428
|
7399 strlen (buf));
|
|
|
7400
|
|
|
7401 goto decode_mode_spec_done;
|
|
|
7402 }
|
|
|
7403 break;
|
|
|
7404 }
|
|
|
7405
|
|
|
7406 /* print percent of buffer above bottom of window, perhaps plus
|
|
|
7407 Top, or print Bottom or All */
|
|
|
7408 case 'P':
|
|
|
7409 {
|
|
665
|
7410 Charbpos toppos = marker_position (w->start[type]);
|
|
|
7411 Charbpos botpos = BUF_Z (b) - w->window_end_pos[type];
|
|
428
|
7412
|
|
|
7413 /* botpos is only accurate as of the last redisplay, so we can
|
|
|
7414 only treat it as a hint. In particular, after erase-buffer,
|
|
|
7415 botpos may be negative. */
|
|
|
7416 if (botpos < toppos)
|
|
|
7417 botpos = toppos;
|
|
|
7418
|
|
|
7419 if (botpos >= BUF_ZV (b))
|
|
|
7420 {
|
|
|
7421 if (toppos <= BUF_BEGV (b))
|
|
|
7422 str = "All";
|
|
|
7423 else
|
|
|
7424 str = "Bottom";
|
|
|
7425 }
|
|
|
7426 else
|
|
|
7427 {
|
|
|
7428 /* This hard limit is ok since the string it will hold has a
|
|
|
7429 fixed maximum length of around 6. But just to be safe... */
|
|
|
7430 char buf[10];
|
|
|
7431 Charcount chars = botpos - BUF_BEGV (b);
|
|
|
7432 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
7433
|
|
|
7434 /* Avoid overflow on big buffers */
|
|
|
7435 int percent = total > LONG_MAX/200 ?
|
|
|
7436 (chars + total/200) / (total / 100) :
|
|
|
7437 (chars * 100 + total/2) / max (total, 1);
|
|
|
7438
|
|
|
7439 /* We can't normally display a 3-digit number, so get us a
|
|
|
7440 2-digit number that is close. */
|
|
|
7441 if (percent == 100)
|
|
|
7442 percent = 99;
|
|
|
7443
|
|
|
7444 if (toppos <= BUF_BEGV (b))
|
|
|
7445 sprintf (buf, "Top%d%%", percent);
|
|
|
7446 else
|
|
|
7447 sprintf (buf, "%d%%", percent);
|
|
|
7448
|
|
867
|
7449 Dynarr_add_many (mode_spec_ibyte_string, (Ibyte *) buf,
|
|
428
|
7450 strlen (buf));
|
|
|
7451
|
|
|
7452 goto decode_mode_spec_done;
|
|
|
7453 }
|
|
|
7454 break;
|
|
|
7455 }
|
|
|
7456
|
|
|
7457 /* print % */
|
|
|
7458 case '%':
|
|
|
7459 str = "%";
|
|
|
7460 break;
|
|
|
7461
|
|
|
7462 /* print one [ for each recursive editing level. */
|
|
|
7463 case '[':
|
|
|
7464 {
|
|
|
7465 int i;
|
|
|
7466
|
|
|
7467 if (command_loop_level > 5)
|
|
|
7468 {
|
|
|
7469 str = "[[[... ";
|
|
|
7470 break;
|
|
|
7471 }
|
|
|
7472
|
|
|
7473 for (i = 0; i < command_loop_level; i++)
|
|
867
|
7474 Dynarr_add (mode_spec_ibyte_string, '[');
|
|
428
|
7475
|
|
|
7476 goto decode_mode_spec_done;
|
|
|
7477 }
|
|
|
7478
|
|
|
7479 /* print one ] for each recursive editing level. */
|
|
|
7480 case ']':
|
|
|
7481 {
|
|
|
7482 int i;
|
|
|
7483
|
|
|
7484 if (command_loop_level > 5)
|
|
|
7485 {
|
|
|
7486 str = "...]]]";
|
|
|
7487 break;
|
|
|
7488 }
|
|
|
7489
|
|
|
7490 for (i = 0; i < command_loop_level; i++)
|
|
867
|
7491 Dynarr_add (mode_spec_ibyte_string, ']');
|
|
428
|
7492
|
|
|
7493 goto decode_mode_spec_done;
|
|
|
7494 }
|
|
|
7495
|
|
|
7496 /* print infinitely many dashes -- handle at top level now */
|
|
|
7497 case '-':
|
|
|
7498 break;
|
|
|
7499
|
|
|
7500 }
|
|
|
7501
|
|
|
7502 if (STRINGP (obj))
|
|
867
|
7503 Dynarr_add_many (mode_spec_ibyte_string,
|
|
428
|
7504 XSTRING_DATA (obj),
|
|
|
7505 XSTRING_LENGTH (obj));
|
|
|
7506 else if (str)
|
|
867
|
7507 Dynarr_add_many (mode_spec_ibyte_string, (Ibyte *) str, strlen (str));
|
|
428
|
7508
|
|
|
7509 decode_mode_spec_done:
|
|
867
|
7510 Dynarr_add (mode_spec_ibyte_string, '\0');
|
|
428
|
7511 }
|
|
|
7512
|
|
|
7513 /* Given a display line, free all of its data structures. */
|
|
|
7514
|
|
|
7515 static void
|
|
|
7516 free_display_line (struct display_line *dl)
|
|
|
7517 {
|
|
|
7518 int block;
|
|
|
7519
|
|
|
7520 if (dl->display_blocks)
|
|
|
7521 {
|
|
|
7522 for (block = 0; block < Dynarr_largest (dl->display_blocks); block++)
|
|
1318
|
7523 {
|
|
428
|
7524 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
|
|
|
7525
|
|
|
7526 Dynarr_free (db->runes);
|
|
|
7527 }
|
|
|
7528
|
|
|
7529 Dynarr_free (dl->display_blocks);
|
|
|
7530 dl->display_blocks = NULL;
|
|
|
7531 }
|
|
|
7532
|
|
|
7533 if (dl->left_glyphs)
|
|
|
7534 {
|
|
|
7535 Dynarr_free (dl->left_glyphs);
|
|
|
7536 dl->left_glyphs = NULL;
|
|
|
7537 }
|
|
|
7538
|
|
|
7539 if (dl->right_glyphs)
|
|
|
7540 {
|
|
|
7541 Dynarr_free (dl->right_glyphs);
|
|
|
7542 dl->right_glyphs = NULL;
|
|
|
7543 }
|
|
|
7544 }
|
|
|
7545
|
|
|
7546
|
|
|
7547 /* Given an array of display lines, free them and all data structures
|
|
|
7548 contained within them. */
|
|
|
7549
|
|
|
7550 void
|
|
|
7551 free_display_lines (display_line_dynarr *dla)
|
|
|
7552 {
|
|
|
7553 int line;
|
|
|
7554
|
|
|
7555 for (line = 0; line < Dynarr_largest (dla); line++)
|
|
|
7556 {
|
|
|
7557 free_display_line (Dynarr_atp (dla, line));
|
|
|
7558 }
|
|
|
7559
|
|
|
7560 Dynarr_free (dla);
|
|
|
7561 }
|
|
|
7562
|
|
|
7563 /* Call internal free routine for each set of display lines. */
|
|
|
7564
|
|
|
7565 void
|
|
|
7566 free_display_structs (struct window_mirror *mir)
|
|
|
7567 {
|
|
|
7568 if (mir->current_display_lines)
|
|
|
7569 {
|
|
|
7570 free_display_lines (mir->current_display_lines);
|
|
|
7571 mir->current_display_lines = 0;
|
|
|
7572 }
|
|
|
7573
|
|
|
7574 if (mir->desired_display_lines)
|
|
|
7575 {
|
|
|
7576 free_display_lines (mir->desired_display_lines);
|
|
|
7577 mir->desired_display_lines = 0;
|
|
|
7578 }
|
|
|
7579 }
|
|
|
7580
|
|
|
7581
|
|
|
7582 static void
|
|
|
7583 mark_glyph_block_dynarr (glyph_block_dynarr *gba)
|
|
|
7584 {
|
|
|
7585 if (gba)
|
|
|
7586 {
|
|
|
7587 glyph_block *gb = Dynarr_atp (gba, 0);
|
|
|
7588 glyph_block *gb_last = Dynarr_atp (gba, Dynarr_length (gba));
|
|
|
7589
|
|
|
7590 for (; gb < gb_last; gb++)
|
|
|
7591 {
|
|
|
7592 if (!NILP (gb->glyph))
|
|
|
7593 mark_object (gb->glyph);
|
|
|
7594 if (!NILP (gb->extent))
|
|
|
7595 mark_object (gb->extent);
|
|
|
7596 }
|
|
|
7597 }
|
|
|
7598 }
|
|
|
7599
|
|
442
|
7600 /* See the comment in image_instantiate_cache_result as to why marking
|
|
|
7601 the glyph will also mark the image_instance. */
|
|
|
7602 void
|
|
428
|
7603 mark_redisplay_structs (display_line_dynarr *dla)
|
|
|
7604 {
|
|
|
7605 display_line *dl = Dynarr_atp (dla, 0);
|
|
|
7606 display_line *dl_last = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
7607
|
|
|
7608 for (; dl < dl_last; dl++)
|
|
|
7609 {
|
|
|
7610 display_block_dynarr *dba = dl->display_blocks;
|
|
|
7611 display_block *db = Dynarr_atp (dba, 0);
|
|
|
7612 display_block *db_last = Dynarr_atp (dba, Dynarr_length (dba));
|
|
|
7613
|
|
|
7614 for (; db < db_last; db++)
|
|
|
7615 {
|
|
|
7616 rune_dynarr *ra = db->runes;
|
|
|
7617 rune *r = Dynarr_atp (ra, 0);
|
|
|
7618 rune *r_last = Dynarr_atp (ra, Dynarr_length (ra));
|
|
|
7619
|
|
|
7620 for (; r < r_last; r++)
|
|
|
7621 {
|
|
|
7622 if (r->type == RUNE_DGLYPH)
|
|
|
7623 {
|
|
|
7624 if (!NILP (r->object.dglyph.glyph))
|
|
|
7625 mark_object (r->object.dglyph.glyph);
|
|
|
7626 if (!NILP (r->object.dglyph.extent))
|
|
|
7627 mark_object (r->object.dglyph.extent);
|
|
|
7628 }
|
|
|
7629 }
|
|
|
7630 }
|
|
|
7631
|
|
|
7632 mark_glyph_block_dynarr (dl->left_glyphs);
|
|
|
7633 mark_glyph_block_dynarr (dl->right_glyphs);
|
|
|
7634 }
|
|
|
7635 }
|
|
|
7636
|
|
|
7637
|
|
2367
|
7638
|
|
|
7639 /*
|
|
|
7640
|
|
|
7641 Info on line-start cache:
|
|
|
7642
|
|
|
7643 (Info-goto-node "(internals)Line Start Cache")
|
|
|
7644 */
|
|
428
|
7645
|
|
|
7646 /* This will get used quite a bit so we don't want to be constantly
|
|
|
7647 allocating and freeing it. */
|
|
|
7648 static line_start_cache_dynarr *internal_cache;
|
|
|
7649
|
|
|
7650 /* Makes internal_cache represent the TYPE display structs and only
|
|
|
7651 the TYPE display structs. */
|
|
|
7652
|
|
|
7653 static void
|
|
|
7654 update_internal_cache_list (struct window *w, int type)
|
|
|
7655 {
|
|
|
7656 int line;
|
|
|
7657 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
7658
|
|
|
7659 Dynarr_reset (internal_cache);
|
|
|
7660 for (line = 0; line < Dynarr_length (dla); line++)
|
|
|
7661 {
|
|
|
7662 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
7663
|
|
|
7664 if (dl->modeline)
|
|
|
7665 continue;
|
|
|
7666 else
|
|
|
7667 {
|
|
|
7668 struct line_start_cache lsc;
|
|
434
|
7669
|
|
826
|
7670 lsc.start = dl->charpos;
|
|
|
7671 lsc.end = dl->end_charpos;
|
|
428
|
7672 lsc.height = dl->ascent + dl->descent;
|
|
|
7673
|
|
|
7674 Dynarr_add (internal_cache, lsc);
|
|
|
7675 }
|
|
|
7676 }
|
|
|
7677 }
|
|
|
7678
|
|
|
7679 /* Reset the line cache if necessary. This should be run at the
|
|
|
7680 beginning of any function which access the cache. */
|
|
|
7681
|
|
|
7682 static void
|
|
|
7683 validate_line_start_cache (struct window *w)
|
|
|
7684 {
|
|
|
7685 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7686 struct frame *f = XFRAME (w->frame);
|
|
|
7687
|
|
|
7688 if (!w->line_cache_validation_override)
|
|
|
7689 {
|
|
|
7690 /* f->extents_changed used to be in here because extent face and
|
|
|
7691 size changes can cause text shifting. However, the extent
|
|
|
7692 covering the region is constantly having its face set and
|
|
|
7693 priority altered by the mouse code. This means that the line
|
|
|
7694 start cache is constantly being invalidated. This is bad
|
|
|
7695 since the mouse code also triggers heavy usage of the cache.
|
|
|
7696 Since it is an unlikely that f->extents being changed
|
|
|
7697 indicates that the cache really needs to be updated and if it
|
|
|
7698 does redisplay will catch it pretty quickly we no longer
|
|
|
7699 invalidate the cache if it is set. This greatly speeds up
|
|
|
7700 dragging out regions with the mouse. */
|
|
|
7701 if (XINT (w->line_cache_last_updated) < BUF_MODIFF (b)
|
|
|
7702 || f->faces_changed
|
|
|
7703 || f->clip_changed)
|
|
|
7704 {
|
|
|
7705 Dynarr_reset (w->line_start_cache);
|
|
|
7706 }
|
|
|
7707 }
|
|
|
7708 }
|
|
|
7709
|
|
|
7710 /* Return the very first buffer position contained in the given
|
|
|
7711 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
7712 cache is valid. */
|
|
|
7713
|
|
665
|
7714 static Charbpos
|
|
428
|
7715 line_start_cache_start (struct window *w)
|
|
|
7716 {
|
|
|
7717 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7718
|
|
|
7719 if (!Dynarr_length (cache))
|
|
|
7720 return -1;
|
|
|
7721 else
|
|
|
7722 return Dynarr_atp (cache, 0)->start;
|
|
|
7723 }
|
|
|
7724
|
|
|
7725 /* Return the very last buffer position contained in the given
|
|
|
7726 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
7727 cache is valid. */
|
|
|
7728
|
|
665
|
7729 static Charbpos
|
|
428
|
7730 line_start_cache_end (struct window *w)
|
|
|
7731 {
|
|
|
7732 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7733
|
|
|
7734 if (!Dynarr_length (cache))
|
|
|
7735 return -1;
|
|
|
7736 else
|
|
|
7737 return Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
7738 }
|
|
|
7739
|
|
|
7740 /* Return the index of the line POINT is contained within in window
|
|
|
7741 W's line start cache. It will enlarge the cache or move the cache
|
|
|
7742 window in order to have POINT be present in the cache. MIN_PAST is
|
|
|
7743 a guarantee of the number of entries in the cache present on either
|
|
|
7744 side of POINT (unless a buffer boundary is hit). If MIN_PAST is -1
|
|
|
7745 then it will be treated as 0, but the cache window will not be
|
|
|
7746 allowed to shift. Returns -1 if POINT cannot be found in the cache
|
|
|
7747 for any reason. */
|
|
|
7748
|
|
|
7749 int
|
|
665
|
7750 point_in_line_start_cache (struct window *w, Charbpos point, int min_past)
|
|
428
|
7751 {
|
|
|
7752 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7753 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
647
|
7754 int top, bottom, pos;
|
|
428
|
7755
|
|
|
7756 validate_line_start_cache (w);
|
|
|
7757 w->line_cache_validation_override++;
|
|
|
7758
|
|
|
7759 /* Let functions pass in negative values, but we still treat -1
|
|
|
7760 specially. */
|
|
|
7761 /* #### bogosity alert */
|
|
|
7762 if (min_past < 0 && min_past != -1)
|
|
|
7763 min_past = -min_past;
|
|
|
7764
|
|
|
7765 if (!Dynarr_length (cache) || line_start_cache_start (w) > point
|
|
|
7766 || line_start_cache_end (w) < point)
|
|
|
7767 {
|
|
|
7768 int loop;
|
|
|
7769 int win_char_height = window_char_height (w, 1);
|
|
|
7770
|
|
|
7771 /* Occasionally we get here with a 0 height
|
|
|
7772 window. find_next_newline_no_quit will abort if we pass it a
|
|
|
7773 count of 0 so handle that case. */
|
|
|
7774 if (!win_char_height)
|
|
|
7775 win_char_height = 1;
|
|
|
7776
|
|
|
7777 if (!Dynarr_length (cache))
|
|
|
7778 {
|
|
665
|
7779 Charbpos from = find_next_newline_no_quit (b, point, -1);
|
|
|
7780 Charbpos to = find_next_newline_no_quit (b, from, win_char_height);
|
|
428
|
7781
|
|
|
7782 update_line_start_cache (w, from, to, point, 0);
|
|
|
7783
|
|
|
7784 if (!Dynarr_length (cache))
|
|
|
7785 {
|
|
|
7786 w->line_cache_validation_override--;
|
|
|
7787 return -1;
|
|
|
7788 }
|
|
|
7789 }
|
|
|
7790
|
|
|
7791 assert (Dynarr_length (cache));
|
|
|
7792
|
|
|
7793 loop = 0;
|
|
|
7794 while (line_start_cache_start (w) > point
|
|
|
7795 && (loop < cache_adjustment || min_past == -1))
|
|
|
7796 {
|
|
665
|
7797 Charbpos from, to;
|
|
428
|
7798
|
|
|
7799 from = line_start_cache_start (w);
|
|
|
7800 if (from <= BUF_BEGV (b))
|
|
|
7801 break;
|
|
|
7802
|
|
|
7803 from = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7804 to = line_start_cache_end (w);
|
|
|
7805
|
|
|
7806 update_line_start_cache (w, from, to, point, 0);
|
|
|
7807 loop++;
|
|
|
7808 }
|
|
|
7809
|
|
|
7810 if (line_start_cache_start (w) > point)
|
|
|
7811 {
|
|
665
|
7812 Charbpos from, to;
|
|
428
|
7813
|
|
|
7814 from = find_next_newline_no_quit (b, point, -1);
|
|
|
7815 if (from >= BUF_ZV (b))
|
|
|
7816 {
|
|
|
7817 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7818 from = to;
|
|
|
7819 to = BUF_ZV (b);
|
|
|
7820 }
|
|
|
7821 else
|
|
|
7822 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7823
|
|
|
7824 update_line_start_cache (w, from, to, point, 0);
|
|
|
7825 }
|
|
|
7826
|
|
|
7827 loop = 0;
|
|
|
7828 while (line_start_cache_end (w) < point
|
|
|
7829 && (loop < cache_adjustment || min_past == -1))
|
|
|
7830 {
|
|
665
|
7831 Charbpos from, to;
|
|
428
|
7832
|
|
|
7833 to = line_start_cache_end (w);
|
|
|
7834 if (to >= BUF_ZV (b))
|
|
|
7835 break;
|
|
|
7836
|
|
|
7837 from = line_start_cache_end (w);
|
|
|
7838 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7839
|
|
|
7840 update_line_start_cache (w, from, to, point, 0);
|
|
|
7841 loop++;
|
|
|
7842 }
|
|
|
7843
|
|
|
7844 if (line_start_cache_end (w) < point)
|
|
|
7845 {
|
|
665
|
7846 Charbpos from, to;
|
|
428
|
7847
|
|
|
7848 from = find_next_newline_no_quit (b, point, -1);
|
|
|
7849 if (from >= BUF_ZV (b))
|
|
|
7850 {
|
|
|
7851 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7852 from = to;
|
|
|
7853 to = BUF_ZV (b);
|
|
|
7854 }
|
|
|
7855 else
|
|
|
7856 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7857
|
|
|
7858 update_line_start_cache (w, from, to, point, 0);
|
|
|
7859 }
|
|
|
7860 }
|
|
|
7861
|
|
|
7862 assert (Dynarr_length (cache));
|
|
|
7863
|
|
|
7864 if (min_past == -1)
|
|
|
7865 min_past = 0;
|
|
|
7866
|
|
|
7867 /* This could happen if the buffer is narrowed. */
|
|
|
7868 if (line_start_cache_start (w) > point
|
|
|
7869 || line_start_cache_end (w) < point)
|
|
|
7870 {
|
|
|
7871 w->line_cache_validation_override--;
|
|
|
7872 return -1;
|
|
|
7873 }
|
|
|
7874
|
|
|
7875 find_point_loop:
|
|
|
7876
|
|
|
7877 top = Dynarr_length (cache) - 1;
|
|
|
7878 bottom = 0;
|
|
|
7879
|
|
|
7880 while (1)
|
|
|
7881 {
|
|
647
|
7882 int new_pos;
|
|
665
|
7883 Charbpos start, end;
|
|
428
|
7884
|
|
|
7885 pos = (bottom + top + 1) >> 1;
|
|
|
7886 start = Dynarr_atp (cache, pos)->start;
|
|
|
7887 end = Dynarr_atp (cache, pos)->end;
|
|
|
7888
|
|
|
7889 if (point >= start && point <= end)
|
|
|
7890 {
|
|
|
7891 if (pos < min_past && line_start_cache_start (w) > BUF_BEGV (b))
|
|
|
7892 {
|
|
665
|
7893 Charbpos from =
|
|
428
|
7894 find_next_newline_no_quit (b, line_start_cache_start (w),
|
|
|
7895 -min_past - 1);
|
|
665
|
7896 Charbpos to = line_start_cache_end (w);
|
|
428
|
7897
|
|
|
7898 update_line_start_cache (w, from, to, point, 0);
|
|
|
7899 goto find_point_loop;
|
|
|
7900 }
|
|
|
7901 else if ((Dynarr_length (cache) - pos - 1) < min_past
|
|
|
7902 && line_start_cache_end (w) < BUF_ZV (b))
|
|
|
7903 {
|
|
665
|
7904 Charbpos from = line_start_cache_end (w);
|
|
|
7905 Charbpos to = find_next_newline_no_quit (b, from,
|
|
428
|
7906 (min_past
|
|
|
7907 ? min_past
|
|
|
7908 : 1));
|
|
|
7909
|
|
|
7910 update_line_start_cache (w, from, to, point, 0);
|
|
|
7911 goto find_point_loop;
|
|
|
7912 }
|
|
|
7913 else
|
|
|
7914 {
|
|
|
7915 w->line_cache_validation_override--;
|
|
|
7916 return pos;
|
|
|
7917 }
|
|
|
7918 }
|
|
|
7919 else if (point > end)
|
|
|
7920 bottom = pos + 1;
|
|
|
7921 else if (point < start)
|
|
|
7922 top = pos - 1;
|
|
|
7923 else
|
|
2500
|
7924 ABORT ();
|
|
428
|
7925
|
|
|
7926 new_pos = (bottom + top + 1) >> 1;
|
|
|
7927 if (pos == new_pos)
|
|
|
7928 {
|
|
|
7929 w->line_cache_validation_override--;
|
|
|
7930 return -1;
|
|
|
7931 }
|
|
|
7932 }
|
|
|
7933 }
|
|
|
7934
|
|
|
7935 /* Return a boolean indicating if POINT would be visible in window W
|
|
1708
|
7936 if display of the window was to begin at STARTP. If PARTIALLY is
|
|
|
7937 zero, then if POINT has fewer visible pixels than the window clip,
|
|
|
7938 0 is returned; otherwise, 1 is returned if POINT has any visible
|
|
|
7939 pixels. */
|
|
428
|
7940 int
|
|
1708
|
7941 point_would_be_visible (struct window *w, Charbpos startp, Charbpos point,
|
|
|
7942 int partially)
|
|
428
|
7943 {
|
|
|
7944 struct buffer *b = XBUFFER (w->buffer);
|
|
430
|
7945 int pixpos = -WINDOW_TEXT_TOP_CLIP(w);
|
|
428
|
7946 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
7947 int start_elt;
|
|
|
7948
|
|
|
7949 /* If point is before the intended start it obviously can't be visible. */
|
|
|
7950 if (point < startp)
|
|
|
7951 return 0;
|
|
|
7952
|
|
|
7953 /* If point or start are not in the accessible buffer range, then
|
|
|
7954 fail. */
|
|
|
7955 if (startp < BUF_BEGV (b) || startp > BUF_ZV (b)
|
|
|
7956 || point < BUF_BEGV (b) || point > BUF_ZV (b))
|
|
|
7957 return 0;
|
|
|
7958
|
|
|
7959 validate_line_start_cache (w);
|
|
|
7960 w->line_cache_validation_override++;
|
|
|
7961
|
|
|
7962 start_elt = point_in_line_start_cache (w, startp, 0);
|
|
|
7963 if (start_elt == -1)
|
|
|
7964 {
|
|
|
7965 w->line_cache_validation_override--;
|
|
|
7966 return 0;
|
|
|
7967 }
|
|
|
7968
|
|
|
7969 assert (line_start_cache_start (w) <= startp
|
|
|
7970 && line_start_cache_end (w) >= startp);
|
|
|
7971
|
|
|
7972 while (1)
|
|
|
7973 {
|
|
|
7974 int height;
|
|
|
7975
|
|
|
7976 /* Expand the cache if necessary. */
|
|
|
7977 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
7978 {
|
|
665
|
7979 Charbpos old_startp =
|
|
428
|
7980 Dynarr_atp (w->line_start_cache, start_elt - 1)->start;
|
|
|
7981
|
|
|
7982 start_elt = point_in_line_start_cache (w, old_startp,
|
|
|
7983 window_char_height (w, 0));
|
|
|
7984
|
|
|
7985 /* We've already actually processed old_startp, so increment
|
|
|
7986 immediately. */
|
|
|
7987 start_elt++;
|
|
|
7988
|
|
|
7989 /* If this happens we didn't add any extra elements. Bummer. */
|
|
|
7990 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
7991 {
|
|
|
7992 w->line_cache_validation_override--;
|
|
|
7993 return 0;
|
|
|
7994 }
|
|
|
7995 }
|
|
|
7996
|
|
|
7997 height = Dynarr_atp (w->line_start_cache, start_elt)->height;
|
|
|
7998
|
|
|
7999 if (pixpos + height > bottom)
|
|
|
8000 {
|
|
1708
|
8001 if (bottom - pixpos < (partially ? 0 : VERTICAL_CLIP (w, 0)))
|
|
428
|
8002 {
|
|
|
8003 w->line_cache_validation_override--;
|
|
|
8004 return 0;
|
|
|
8005 }
|
|
|
8006 }
|
|
|
8007
|
|
|
8008 pixpos += height;
|
|
|
8009 if (point <= Dynarr_atp (w->line_start_cache, start_elt)->end)
|
|
|
8010 {
|
|
|
8011 w->line_cache_validation_override--;
|
|
|
8012 return 1;
|
|
|
8013 }
|
|
|
8014
|
|
|
8015 start_elt++;
|
|
|
8016 }
|
|
|
8017 }
|
|
|
8018
|
|
|
8019 /* For the given window W, if display starts at STARTP, what will be
|
|
|
8020 the buffer position at the beginning or end of the last line
|
|
|
8021 displayed. The end of the last line is also know as the window end
|
|
|
8022 position.
|
|
|
8023
|
|
442
|
8024 WARNING: It is possible that redisplay failed to layout any lines for the
|
|
|
8025 windows. Under normal circumstances this is rare. However it seems that it
|
|
|
8026 does occur in the following situation: A mouse event has come in and we
|
|
|
8027 need to compute its location in a window. That code (in
|
|
|
8028 pixel_to_glyph_translation) already can handle 0 as an error return value.
|
|
|
8029
|
|
428
|
8030 #### With a little work this could probably be reworked as just a
|
|
|
8031 call to start_with_line_at_pixpos. */
|
|
|
8032
|
|
665
|
8033 static Charbpos
|
|
|
8034 start_end_of_last_line (struct window *w, Charbpos startp, int end,
|
|
442
|
8035 int may_error)
|
|
428
|
8036 {
|
|
|
8037 struct buffer *b = XBUFFER (w->buffer);
|
|
|
8038 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
8039 int pixpos = 0;
|
|
|
8040 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
665
|
8041 Charbpos cur_start;
|
|
428
|
8042 int start_elt;
|
|
|
8043
|
|
|
8044 validate_line_start_cache (w);
|
|
|
8045 w->line_cache_validation_override++;
|
|
|
8046
|
|
|
8047 if (startp < BUF_BEGV (b))
|
|
|
8048 startp = BUF_BEGV (b);
|
|
|
8049 else if (startp > BUF_ZV (b))
|
|
|
8050 startp = BUF_ZV (b);
|
|
|
8051 cur_start = startp;
|
|
|
8052
|
|
|
8053 start_elt = point_in_line_start_cache (w, cur_start, 0);
|
|
|
8054 if (start_elt == -1)
|
|
442
|
8055 return may_error ? 0 : startp;
|
|
428
|
8056
|
|
|
8057 while (1)
|
|
|
8058 {
|
|
|
8059 int height = Dynarr_atp (cache, start_elt)->height;
|
|
|
8060
|
|
|
8061 cur_start = Dynarr_atp (cache, start_elt)->start;
|
|
|
8062
|
|
|
8063 if (pixpos + height > bottom)
|
|
|
8064 {
|
|
|
8065 /* Adjust for any possible clip. */
|
|
|
8066 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
8067 start_elt--;
|
|
|
8068
|
|
|
8069 if (start_elt < 0)
|
|
|
8070 {
|
|
|
8071 w->line_cache_validation_override--;
|
|
|
8072 if (end)
|
|
|
8073 return BUF_ZV (b);
|
|
|
8074 else
|
|
|
8075 return BUF_BEGV (b);
|
|
|
8076 }
|
|
|
8077 else
|
|
|
8078 {
|
|
|
8079 w->line_cache_validation_override--;
|
|
|
8080 if (end)
|
|
|
8081 return Dynarr_atp (cache, start_elt)->end;
|
|
|
8082 else
|
|
|
8083 return Dynarr_atp (cache, start_elt)->start;
|
|
|
8084 }
|
|
|
8085 }
|
|
|
8086
|
|
|
8087 pixpos += height;
|
|
|
8088 start_elt++;
|
|
|
8089 if (start_elt == Dynarr_length (cache))
|
|
|
8090 {
|
|
665
|
8091 Charbpos from = line_start_cache_end (w);
|
|
428
|
8092 int win_char_height = window_char_height (w, 0);
|
|
665
|
8093 Charbpos to = find_next_newline_no_quit (b, from,
|
|
428
|
8094 (win_char_height
|
|
|
8095 ? win_char_height
|
|
|
8096 : 1));
|
|
|
8097
|
|
|
8098 /* We've hit the end of the bottom so that's what it is. */
|
|
|
8099 if (from >= BUF_ZV (b))
|
|
|
8100 {
|
|
|
8101 w->line_cache_validation_override--;
|
|
|
8102 return BUF_ZV (b);
|
|
|
8103 }
|
|
|
8104
|
|
|
8105 update_line_start_cache (w, from, to, BUF_PT (b), 0);
|
|
|
8106
|
|
|
8107 /* Updating the cache invalidates any current indexes. */
|
|
|
8108 start_elt = point_in_line_start_cache (w, cur_start, -1) + 1;
|
|
|
8109 }
|
|
|
8110 }
|
|
|
8111 }
|
|
|
8112
|
|
|
8113 /* For the given window W, if display starts at STARTP, what will be
|
|
|
8114 the buffer position at the beginning of the last line displayed. */
|
|
|
8115
|
|
665
|
8116 Charbpos
|
|
|
8117 start_of_last_line (struct window *w, Charbpos startp)
|
|
428
|
8118 {
|
|
442
|
8119 return start_end_of_last_line (w, startp, 0 , 0);
|
|
428
|
8120 }
|
|
|
8121
|
|
|
8122 /* For the given window W, if display starts at STARTP, what will be
|
|
|
8123 the buffer position at the end of the last line displayed. This is
|
|
|
8124 also know as the window end position. */
|
|
|
8125
|
|
665
|
8126 Charbpos
|
|
|
8127 end_of_last_line (struct window *w, Charbpos startp)
|
|
428
|
8128 {
|
|
442
|
8129 return start_end_of_last_line (w, startp, 1, 0);
|
|
428
|
8130 }
|
|
|
8131
|
|
665
|
8132 static Charbpos
|
|
|
8133 end_of_last_line_may_error (struct window *w, Charbpos startp)
|
|
442
|
8134 {
|
|
|
8135 return start_end_of_last_line (w, startp, 1, 1);
|
|
|
8136 }
|
|
|
8137
|
|
|
8138
|
|
428
|
8139 /* For window W, what does the starting position have to be so that
|
|
|
8140 the line containing POINT will cover pixel position PIXPOS. */
|
|
|
8141
|
|
665
|
8142 Charbpos
|
|
|
8143 start_with_line_at_pixpos (struct window *w, Charbpos point, int pixpos)
|
|
428
|
8144 {
|
|
|
8145 struct buffer *b = XBUFFER (w->buffer);
|
|
|
8146 int cur_elt;
|
|
665
|
8147 Charbpos cur_pos, prev_pos = point;
|
|
428
|
8148 int point_line_height;
|
|
|
8149 int pixheight = pixpos - WINDOW_TEXT_TOP (w);
|
|
|
8150
|
|
|
8151 validate_line_start_cache (w);
|
|
|
8152 w->line_cache_validation_override++;
|
|
|
8153
|
|
|
8154 cur_elt = point_in_line_start_cache (w, point, 0);
|
|
|
8155 /* #### See comment in update_line_start_cache about big minibuffers. */
|
|
|
8156 if (cur_elt < 0)
|
|
|
8157 {
|
|
|
8158 w->line_cache_validation_override--;
|
|
|
8159 return point;
|
|
|
8160 }
|
|
|
8161
|
|
|
8162 point_line_height = Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
8163
|
|
|
8164 while (1)
|
|
|
8165 {
|
|
|
8166 cur_pos = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
8167
|
|
|
8168 pixheight -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
8169
|
|
|
8170 /* Do not take into account the value of vertical_clip here.
|
|
|
8171 That is the responsibility of the calling functions. */
|
|
|
8172 if (pixheight < 0)
|
|
|
8173 {
|
|
|
8174 w->line_cache_validation_override--;
|
|
|
8175 if (-pixheight > point_line_height)
|
|
|
8176 /* We can't make the target line cover pixpos, so put it
|
|
|
8177 above pixpos. That way it will at least be visible. */
|
|
|
8178 return prev_pos;
|
|
|
8179 else
|
|
|
8180 return cur_pos;
|
|
|
8181 }
|
|
|
8182
|
|
|
8183 cur_elt--;
|
|
|
8184 while (cur_elt < 0)
|
|
|
8185 {
|
|
665
|
8186 Charbpos from, to;
|
|
428
|
8187 int win_char_height;
|
|
|
8188
|
|
|
8189 if (cur_pos <= BUF_BEGV (b))
|
|
|
8190 {
|
|
|
8191 w->line_cache_validation_override--;
|
|
|
8192 return BUF_BEGV (b);
|
|
|
8193 }
|
|
|
8194
|
|
|
8195 win_char_height = window_char_height (w, 0);
|
|
|
8196 if (!win_char_height)
|
|
|
8197 win_char_height = 1;
|
|
|
8198
|
|
|
8199 from = find_next_newline_no_quit (b, cur_pos, -win_char_height);
|
|
|
8200 to = line_start_cache_end (w);
|
|
|
8201 update_line_start_cache (w, from, to, point, 0);
|
|
|
8202
|
|
|
8203 cur_elt = point_in_line_start_cache (w, cur_pos, 2) - 1;
|
|
|
8204 assert (cur_elt >= -1);
|
|
|
8205 /* This used to be cur_elt>=0 under the assumption that if
|
|
|
8206 point is in the top line and not at BUF_BEGV, then
|
|
434
|
8207 setting the window_start to a newline before the start of
|
|
428
|
8208 the first line will always cause scrolling.
|
|
|
8209
|
|
|
8210 However in my (jv) opinion this is wrong. That new line
|
|
|
8211 can be hidden in various ways: invisible extents, an
|
|
|
8212 explicit window-start not at a newline character etc.
|
|
|
8213 The existence of those are indeed known to create crashes
|
|
|
8214 on that assert. So we have no option but to continue the
|
|
|
8215 search if we found point at the top of the line_start_cache
|
|
|
8216 again. */
|
|
434
|
8217 cur_pos = Dynarr_atp (w->line_start_cache,0)->start;
|
|
428
|
8218 }
|
|
|
8219 prev_pos = cur_pos;
|
|
|
8220 }
|
|
|
8221 }
|
|
|
8222
|
|
|
8223 /* For window W, what does the starting position have to be so that
|
|
|
8224 the line containing point is on display line LINE. If LINE is
|
|
|
8225 positive it is considered to be the number of lines from the top of
|
|
|
8226 the window (0 is the top line). If it is negative the number is
|
|
|
8227 considered to be the number of lines from the bottom (-1 is the
|
|
|
8228 bottom line). */
|
|
|
8229
|
|
665
|
8230 Charbpos
|
|
|
8231 start_with_point_on_display_line (struct window *w, Charbpos point, int line)
|
|
428
|
8232 {
|
|
|
8233 validate_line_start_cache (w);
|
|
|
8234 w->line_cache_validation_override++;
|
|
|
8235
|
|
|
8236 if (line >= 0)
|
|
|
8237 {
|
|
|
8238 int cur_elt = point_in_line_start_cache (w, point, line);
|
|
|
8239
|
|
|
8240 if (cur_elt - line < 0)
|
|
|
8241 cur_elt = 0; /* Hit the top */
|
|
|
8242 else
|
|
|
8243 cur_elt -= line;
|
|
|
8244
|
|
|
8245 w->line_cache_validation_override--;
|
|
|
8246 return Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
8247 }
|
|
|
8248 else
|
|
|
8249 {
|
|
|
8250 /* The calculated value of pixpos is correct for the bottom line
|
|
|
8251 or what we want when line is -1. Therefore we subtract one
|
|
|
8252 because we have already handled one line. */
|
|
|
8253 int new_line = -line - 1;
|
|
|
8254 int cur_elt = point_in_line_start_cache (w, point, new_line);
|
|
|
8255 int pixpos = WINDOW_TEXT_BOTTOM (w);
|
|
665
|
8256 Charbpos retval, search_point;
|
|
428
|
8257
|
|
|
8258 /* If scroll_on_clipped_lines is false, the last "visible" line of
|
|
|
8259 the window covers the pixel at WINDOW_TEXT_BOTTOM (w) - 1.
|
|
|
8260 If s_o_c_l is true, then we don't want to count a clipped
|
|
|
8261 line, so back up from the bottom by the height of the line
|
|
|
8262 containing point. */
|
|
|
8263 if (scroll_on_clipped_lines)
|
|
|
8264 pixpos -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
8265 else
|
|
|
8266 pixpos -= 1;
|
|
|
8267
|
|
|
8268 if (cur_elt + new_line >= Dynarr_length (w->line_start_cache))
|
|
|
8269 {
|
|
|
8270 /* Hit the bottom of the buffer. */
|
|
|
8271 int adjustment =
|
|
|
8272 (cur_elt + new_line) - Dynarr_length (w->line_start_cache) + 1;
|
|
|
8273 Lisp_Object window;
|
|
|
8274 int defheight;
|
|
|
8275
|
|
793
|
8276 window = wrap_window (w);
|
|
428
|
8277 default_face_height_and_width (window, &defheight, 0);
|
|
|
8278
|
|
|
8279 cur_elt = Dynarr_length (w->line_start_cache) - 1;
|
|
|
8280
|
|
|
8281 pixpos -= (adjustment * defheight);
|
|
|
8282 if (pixpos < WINDOW_TEXT_TOP (w))
|
|
|
8283 pixpos = WINDOW_TEXT_TOP (w);
|
|
|
8284 }
|
|
|
8285 else
|
|
|
8286 cur_elt = cur_elt + new_line;
|
|
|
8287
|
|
|
8288 search_point = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
8289
|
|
|
8290 retval = start_with_line_at_pixpos (w, search_point, pixpos);
|
|
|
8291 w->line_cache_validation_override--;
|
|
|
8292 return retval;
|
|
|
8293 }
|
|
|
8294 }
|
|
|
8295
|
|
|
8296 /* This is used to speed up vertical scrolling by caching the known
|
|
|
8297 buffer starting positions for display lines. This allows the
|
|
|
8298 scrolling routines to avoid costly calls to regenerate_window. If
|
|
|
8299 NO_REGEN is true then it will only add the values in the DESIRED
|
|
|
8300 display structs which are in the given range.
|
|
|
8301
|
|
|
8302 Note also that the FROM/TO values are minimums. It is possible
|
|
|
8303 that this function will actually add information outside of the
|
|
|
8304 lines containing those positions. This can't hurt but it could
|
|
|
8305 possibly help.
|
|
|
8306
|
|
|
8307 #### We currently force the cache to have only 1 contiguous region.
|
|
|
8308 It might help to make the cache a dynarr of caches so that we can
|
|
|
8309 cover more areas. This might, however, turn out to be a lot of
|
|
|
8310 overhead for too little gain. */
|
|
|
8311
|
|
|
8312 static void
|
|
665
|
8313 update_line_start_cache (struct window *w, Charbpos from, Charbpos to,
|
|
|
8314 Charbpos point, int no_regen)
|
|
428
|
8315 {
|
|
|
8316 struct buffer *b = XBUFFER (w->buffer);
|
|
|
8317 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
665
|
8318 Charbpos low_bound, high_bound;
|
|
428
|
8319
|
|
|
8320 validate_line_start_cache (w);
|
|
|
8321 w->line_cache_validation_override++;
|
|
|
8322
|
|
|
8323 if (from < BUF_BEGV (b))
|
|
|
8324 from = BUF_BEGV (b);
|
|
|
8325 if (to > BUF_ZV (b))
|
|
|
8326 to = BUF_ZV (b);
|
|
|
8327
|
|
|
8328 if (from > to)
|
|
|
8329 {
|
|
|
8330 w->line_cache_validation_override--;
|
|
|
8331 return;
|
|
|
8332 }
|
|
|
8333
|
|
|
8334 if (Dynarr_length (cache))
|
|
|
8335 {
|
|
|
8336 low_bound = line_start_cache_start (w);
|
|
|
8337 high_bound = line_start_cache_end (w);
|
|
|
8338
|
|
|
8339 /* Check to see if the desired range is already in the cache. */
|
|
|
8340 if (from >= low_bound && to <= high_bound)
|
|
|
8341 {
|
|
|
8342 w->line_cache_validation_override--;
|
|
|
8343 return;
|
|
|
8344 }
|
|
|
8345
|
|
|
8346 /* Check to make sure that the desired range is adjacent to the
|
|
|
8347 current cache. If not, invalidate the cache. */
|
|
|
8348 if (to < low_bound || from > high_bound)
|
|
|
8349 {
|
|
|
8350 Dynarr_reset (cache);
|
|
|
8351 low_bound = high_bound = -1;
|
|
|
8352 }
|
|
|
8353 }
|
|
|
8354 else
|
|
|
8355 {
|
|
|
8356 low_bound = high_bound = -1;
|
|
|
8357 }
|
|
|
8358
|
|
|
8359 w->line_cache_last_updated = make_int (BUF_MODIFF (b));
|
|
|
8360
|
|
|
8361 /* This could be integrated into the next two sections, but it is easier
|
|
|
8362 to follow what's going on by having it separate. */
|
|
|
8363 if (no_regen)
|
|
|
8364 {
|
|
665
|
8365 Charbpos start, end;
|
|
428
|
8366
|
|
|
8367 update_internal_cache_list (w, DESIRED_DISP);
|
|
|
8368 if (!Dynarr_length (internal_cache))
|
|
|
8369 {
|
|
|
8370 w->line_cache_validation_override--;
|
|
|
8371 return;
|
|
|
8372 }
|
|
|
8373
|
|
|
8374 start = Dynarr_atp (internal_cache, 0)->start;
|
|
|
8375 end =
|
|
|
8376 Dynarr_atp (internal_cache, Dynarr_length (internal_cache) - 1)->end;
|
|
|
8377
|
|
|
8378 /* We aren't allowed to generate additional information to fill in
|
|
|
8379 gaps, so if the DESIRED structs don't overlap the cache, reset the
|
|
|
8380 cache. */
|
|
|
8381 if (Dynarr_length (cache))
|
|
|
8382 {
|
|
|
8383 if (end < low_bound || start > high_bound)
|
|
|
8384 Dynarr_reset (cache);
|
|
|
8385
|
|
|
8386 /* #### What should really happen if what we are doing is
|
|
|
8387 extending a line (the last line)? */
|
|
|
8388 if (Dynarr_length (cache) == 1
|
|
|
8389 && Dynarr_length (internal_cache) == 1)
|
|
|
8390 Dynarr_reset (cache);
|
|
|
8391 }
|
|
|
8392
|
|
|
8393 if (!Dynarr_length (cache))
|
|
|
8394 {
|
|
|
8395 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8396 Dynarr_length (internal_cache));
|
|
|
8397 w->line_cache_validation_override--;
|
|
|
8398 return;
|
|
|
8399 }
|
|
|
8400
|
|
|
8401 /* An extra check just in case the calling function didn't pass in
|
|
|
8402 the bounds of the DESIRED structs in the first place. */
|
|
|
8403 if (start >= low_bound && end <= high_bound)
|
|
|
8404 {
|
|
|
8405 w->line_cache_validation_override--;
|
|
|
8406 return;
|
|
|
8407 }
|
|
|
8408
|
|
|
8409 /* At this point we know that the internal cache partially overlaps
|
|
|
8410 the main cache. */
|
|
|
8411 if (start < low_bound)
|
|
|
8412 {
|
|
|
8413 int ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
8414 while (ic_elt >= 0)
|
|
|
8415 {
|
|
|
8416 if (Dynarr_atp (internal_cache, ic_elt)->start < low_bound)
|
|
|
8417 break;
|
|
|
8418 else
|
|
|
8419 ic_elt--;
|
|
|
8420 }
|
|
|
8421
|
|
|
8422 if (!(ic_elt >= 0))
|
|
|
8423 {
|
|
|
8424 Dynarr_reset (cache);
|
|
|
8425 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8426 Dynarr_length (internal_cache));
|
|
|
8427 w->line_cache_validation_override--;
|
|
|
8428 return;
|
|
|
8429 }
|
|
|
8430
|
|
|
8431 Dynarr_insert_many_at_start (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8432 ic_elt + 1);
|
|
|
8433 }
|
|
|
8434
|
|
|
8435 if (end > high_bound)
|
|
|
8436 {
|
|
|
8437 int ic_elt = 0;
|
|
|
8438
|
|
|
8439 while (ic_elt < Dynarr_length (internal_cache))
|
|
|
8440 {
|
|
|
8441 if (Dynarr_atp (internal_cache, ic_elt)->start > high_bound)
|
|
|
8442 break;
|
|
|
8443 else
|
|
|
8444 ic_elt++;
|
|
|
8445 }
|
|
|
8446
|
|
|
8447 if (!(ic_elt < Dynarr_length (internal_cache)))
|
|
|
8448 {
|
|
|
8449 Dynarr_reset (cache);
|
|
|
8450 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8451 Dynarr_length (internal_cache));
|
|
|
8452 w->line_cache_validation_override--;
|
|
|
8453 return;
|
|
|
8454 }
|
|
|
8455
|
|
|
8456 Dynarr_add_many (cache, Dynarr_atp (internal_cache, ic_elt),
|
|
|
8457 Dynarr_length (internal_cache) - ic_elt);
|
|
|
8458 }
|
|
|
8459
|
|
|
8460 w->line_cache_validation_override--;
|
|
|
8461 return;
|
|
|
8462 }
|
|
|
8463
|
|
|
8464 if (!Dynarr_length (cache) || from < low_bound)
|
|
|
8465 {
|
|
665
|
8466 Charbpos startp = find_next_newline_no_quit (b, from, -1);
|
|
428
|
8467 int marker = 0;
|
|
|
8468 int old_lb = low_bound;
|
|
|
8469
|
|
|
8470 while (startp < old_lb || low_bound == -1)
|
|
|
8471 {
|
|
|
8472 int ic_elt;
|
|
665
|
8473 Charbpos new_startp;
|
|
428
|
8474
|
|
|
8475 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
8476 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
8477
|
|
|
8478 /* If this assert is triggered then regenerate_window failed
|
|
442
|
8479 to layout a single line. This is not possible since we
|
|
|
8480 force at least a single line to be layout for CMOTION_DISP */
|
|
|
8481 assert (Dynarr_length (internal_cache));
|
|
428
|
8482 assert (startp == Dynarr_atp (internal_cache, 0)->start);
|
|
|
8483
|
|
|
8484 ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
8485 if (low_bound != -1)
|
|
|
8486 {
|
|
|
8487 while (ic_elt >= 0)
|
|
|
8488 {
|
|
|
8489 if (Dynarr_atp (internal_cache, ic_elt)->start < old_lb)
|
|
|
8490 break;
|
|
|
8491 else
|
|
|
8492 ic_elt--;
|
|
|
8493 }
|
|
|
8494 }
|
|
|
8495 assert (ic_elt >= 0);
|
|
|
8496
|
|
|
8497 new_startp = Dynarr_atp (internal_cache, ic_elt)->end + 1;
|
|
|
8498
|
|
|
8499 /*
|
|
|
8500 * Handle invisible text properly:
|
|
|
8501 * If the last line we're inserting has the same end as the
|
|
|
8502 * line before which it will be added, merge the two lines.
|
|
|
8503 */
|
|
|
8504 if (Dynarr_length (cache) &&
|
|
|
8505 Dynarr_atp (internal_cache, ic_elt)->end ==
|
|
|
8506 Dynarr_atp (cache, marker)->end)
|
|
|
8507 {
|
|
|
8508 Dynarr_atp (cache, marker)->start
|
|
|
8509 = Dynarr_atp (internal_cache, ic_elt)->start;
|
|
|
8510 Dynarr_atp (cache, marker)->height
|
|
|
8511 = Dynarr_atp (internal_cache, ic_elt)->height;
|
|
|
8512 ic_elt--;
|
|
|
8513 }
|
|
|
8514
|
|
|
8515 if (ic_elt >= 0) /* we still have lines to add.. */
|
|
|
8516 {
|
|
|
8517 Dynarr_insert_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8518 ic_elt + 1, marker);
|
|
|
8519 marker += (ic_elt + 1);
|
|
|
8520 }
|
|
|
8521
|
|
|
8522 if (startp < low_bound || low_bound == -1)
|
|
|
8523 low_bound = startp;
|
|
|
8524 startp = new_startp;
|
|
|
8525 if (startp > BUF_ZV (b))
|
|
|
8526 {
|
|
|
8527 w->line_cache_validation_override--;
|
|
|
8528 return;
|
|
|
8529 }
|
|
|
8530 }
|
|
|
8531 }
|
|
|
8532
|
|
|
8533 assert (Dynarr_length (cache));
|
|
|
8534 assert (from >= low_bound);
|
|
|
8535
|
|
|
8536 /* Readjust the high_bound to account for any changes made while
|
|
|
8537 correcting the low_bound. */
|
|
|
8538 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
8539
|
|
|
8540 if (to > high_bound)
|
|
|
8541 {
|
|
665
|
8542 Charbpos startp = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end + 1;
|
|
428
|
8543
|
|
|
8544 do
|
|
|
8545 {
|
|
|
8546 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
8547 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
8548
|
|
|
8549 /* See comment above about regenerate_window failing. */
|
|
|
8550 assert (Dynarr_length (internal_cache));
|
|
|
8551
|
|
|
8552 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8553 Dynarr_length (internal_cache));
|
|
|
8554 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
8555 startp = high_bound + 1;
|
|
|
8556 }
|
|
|
8557 while (to > high_bound);
|
|
|
8558 }
|
|
|
8559
|
|
|
8560 w->line_cache_validation_override--;
|
|
|
8561 assert (to <= high_bound);
|
|
|
8562 }
|
|
|
8563
|
|
|
8564
|
|
|
8565 /* Given x and y coordinates in characters, relative to a window,
|
|
|
8566 return the pixel location corresponding to those coordinates. The
|
|
|
8567 pixel location returned is the center of the given character
|
|
|
8568 position. The pixel values are generated relative to the window,
|
|
|
8569 not the frame.
|
|
|
8570
|
|
|
8571 The modeline is considered to be part of the window. */
|
|
|
8572
|
|
|
8573 void
|
|
|
8574 glyph_to_pixel_translation (struct window *w, int char_x, int char_y,
|
|
|
8575 int *pix_x, int *pix_y)
|
|
|
8576 {
|
|
|
8577 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
8578 int num_disp_lines, modeline;
|
|
|
8579 Lisp_Object window;
|
|
|
8580 int defheight, defwidth;
|
|
|
8581
|
|
793
|
8582 window = wrap_window (w);
|
|
428
|
8583 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
8584
|
|
|
8585 /* If we get a bogus value indicating somewhere above or to the left of
|
|
|
8586 the window, use the first window line or character position
|
|
|
8587 instead. */
|
|
|
8588 if (char_y < 0)
|
|
|
8589 char_y = 0;
|
|
|
8590 if (char_x < 0)
|
|
|
8591 char_x = 0;
|
|
|
8592
|
|
|
8593 num_disp_lines = Dynarr_length (dla);
|
|
|
8594 modeline = 0;
|
|
|
8595 if (num_disp_lines)
|
|
|
8596 {
|
|
|
8597 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
8598 {
|
|
|
8599 num_disp_lines--;
|
|
|
8600 modeline = 1;
|
|
|
8601 }
|
|
|
8602 }
|
|
|
8603
|
|
|
8604 /* First check if the y position intersects the display lines. */
|
|
|
8605 if (char_y < num_disp_lines)
|
|
|
8606 {
|
|
|
8607 struct display_line *dl = Dynarr_atp (dla, char_y + modeline);
|
|
|
8608 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
8609
|
|
|
8610 *pix_y = (dl->ypos - dl->ascent +
|
|
647
|
8611 ((dl->ascent + dl->descent - dl->clip) >> 1));
|
|
428
|
8612
|
|
|
8613 if (char_x < Dynarr_length (db->runes))
|
|
|
8614 {
|
|
|
8615 struct rune *rb = Dynarr_atp (db->runes, char_x);
|
|
|
8616
|
|
|
8617 *pix_x = rb->xpos + (rb->width >> 1);
|
|
|
8618 }
|
|
|
8619 else
|
|
|
8620 {
|
|
|
8621 int last_rune = Dynarr_length (db->runes) - 1;
|
|
|
8622 struct rune *rb = Dynarr_atp (db->runes, last_rune);
|
|
|
8623
|
|
|
8624 char_x -= last_rune;
|
|
|
8625
|
|
|
8626 *pix_x = rb->xpos + rb->width;
|
|
|
8627 *pix_x += ((char_x - 1) * defwidth);
|
|
|
8628 *pix_x += (defwidth >> 1);
|
|
|
8629 }
|
|
|
8630 }
|
|
|
8631 else
|
|
|
8632 {
|
|
|
8633 /* It didn't intersect, so extrapolate. #### For now, we include the
|
|
|
8634 modeline in this since we don't have true character positions in
|
|
|
8635 it. */
|
|
|
8636
|
|
|
8637 if (!Dynarr_length (w->face_cachels))
|
|
|
8638 reset_face_cachels (w);
|
|
|
8639
|
|
|
8640 char_y -= num_disp_lines;
|
|
|
8641
|
|
|
8642 if (Dynarr_length (dla))
|
|
|
8643 {
|
|
|
8644 struct display_line *dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
8645 *pix_y = dl->ypos + dl->descent - dl->clip;
|
|
|
8646 }
|
|
|
8647 else
|
|
|
8648 *pix_y = WINDOW_TEXT_TOP (w);
|
|
|
8649
|
|
|
8650 *pix_y += (char_y * defheight);
|
|
|
8651 *pix_y += (defheight >> 1);
|
|
|
8652
|
|
|
8653 *pix_x = WINDOW_TEXT_LEFT (w);
|
|
|
8654 /* Don't adjust by one because this is still the unadjusted value. */
|
|
|
8655 *pix_x += (char_x * defwidth);
|
|
|
8656 *pix_x += (defwidth >> 1);
|
|
|
8657 }
|
|
|
8658
|
|
|
8659 if (*pix_x > w->pixel_left + w->pixel_width)
|
|
|
8660 *pix_x = w->pixel_left + w->pixel_width;
|
|
|
8661 if (*pix_y > w->pixel_top + w->pixel_height)
|
|
|
8662 *pix_y = w->pixel_top + w->pixel_height;
|
|
|
8663
|
|
|
8664 *pix_x -= w->pixel_left;
|
|
|
8665 *pix_y -= w->pixel_top;
|
|
|
8666 }
|
|
|
8667
|
|
|
8668 /* Given a display line and a position, determine if there is a glyph
|
|
|
8669 there and return information about it if there is. */
|
|
|
8670
|
|
|
8671 static void
|
|
|
8672 get_position_object (struct display_line *dl, Lisp_Object *obj1,
|
|
|
8673 Lisp_Object *obj2, int x_coord, int *low_x_coord,
|
|
|
8674 int *high_x_coord)
|
|
|
8675 {
|
|
|
8676 struct display_block *db;
|
|
|
8677 int elt;
|
|
|
8678 int block =
|
|
|
8679 get_next_display_block (dl->bounds, dl->display_blocks, x_coord, 0);
|
|
|
8680
|
|
|
8681 /* We use get_next_display_block to get the actual display block
|
|
|
8682 that would be displayed at x_coord. */
|
|
|
8683
|
|
|
8684 if (block == NO_BLOCK)
|
|
|
8685 return;
|
|
|
8686 else
|
|
|
8687 db = Dynarr_atp (dl->display_blocks, block);
|
|
|
8688
|
|
|
8689 for (elt = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
8690 {
|
|
|
8691 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
8692
|
|
|
8693 if (rb->xpos <= x_coord && x_coord < (rb->xpos + rb->width))
|
|
|
8694 {
|
|
|
8695 if (rb->type == RUNE_DGLYPH)
|
|
|
8696 {
|
|
|
8697 *obj1 = rb->object.dglyph.glyph;
|
|
|
8698 *obj2 = rb->object.dglyph.extent;
|
|
|
8699 }
|
|
|
8700 else
|
|
|
8701 {
|
|
|
8702 *obj1 = Qnil;
|
|
|
8703 *obj2 = Qnil;
|
|
|
8704 }
|
|
|
8705
|
|
|
8706 if (low_x_coord)
|
|
|
8707 *low_x_coord = rb->xpos;
|
|
|
8708 if (high_x_coord)
|
|
|
8709 *high_x_coord = rb->xpos + rb->width;
|
|
|
8710
|
|
|
8711 return;
|
|
|
8712 }
|
|
|
8713 }
|
|
|
8714 }
|
|
|
8715
|
|
|
8716 #define UPDATE_CACHE_RETURN \
|
|
|
8717 do { \
|
|
|
8718 d->pixel_to_glyph_cache.valid = 1; \
|
|
|
8719 d->pixel_to_glyph_cache.low_x_coord = low_x_coord; \
|
|
|
8720 d->pixel_to_glyph_cache.high_x_coord = high_x_coord; \
|
|
|
8721 d->pixel_to_glyph_cache.low_y_coord = low_y_coord; \
|
|
|
8722 d->pixel_to_glyph_cache.high_y_coord = high_y_coord; \
|
|
|
8723 d->pixel_to_glyph_cache.frame = f; \
|
|
|
8724 d->pixel_to_glyph_cache.col = *col; \
|
|
|
8725 d->pixel_to_glyph_cache.row = *row; \
|
|
|
8726 d->pixel_to_glyph_cache.obj_x = *obj_x; \
|
|
|
8727 d->pixel_to_glyph_cache.obj_y = *obj_y; \
|
|
|
8728 d->pixel_to_glyph_cache.w = *w; \
|
|
826
|
8729 d->pixel_to_glyph_cache.charpos = *charpos; \
|
|
428
|
8730 d->pixel_to_glyph_cache.closest = *closest; \
|
|
|
8731 d->pixel_to_glyph_cache.modeline_closest = *modeline_closest; \
|
|
|
8732 d->pixel_to_glyph_cache.obj1 = *obj1; \
|
|
|
8733 d->pixel_to_glyph_cache.obj2 = *obj2; \
|
|
|
8734 d->pixel_to_glyph_cache.retval = position; \
|
|
|
8735 RETURN_SANS_WARNINGS position; \
|
|
|
8736 } while (0)
|
|
|
8737
|
|
|
8738 /* Given x and y coordinates in pixels relative to a frame, return
|
|
|
8739 information about what is located under those coordinates.
|
|
|
8740
|
|
|
8741 The return value will be one of:
|
|
|
8742
|
|
|
8743 OVER_TOOLBAR: over one of the 4 frame toolbars
|
|
|
8744 OVER_MODELINE: over a modeline
|
|
|
8745 OVER_BORDER: over an internal border
|
|
|
8746 OVER_NOTHING: over the text area, but not over text
|
|
|
8747 OVER_OUTSIDE: outside of the frame border
|
|
|
8748 OVER_TEXT: over text in the text area
|
|
|
8749
|
|
|
8750 OBJ1 is one of
|
|
|
8751
|
|
|
8752 -- a toolbar button
|
|
|
8753 -- a glyph
|
|
|
8754 -- nil if the coordinates are not over a glyph or a toolbar button.
|
|
|
8755
|
|
|
8756 OBJ2 is one of
|
|
|
8757
|
|
|
8758 -- an extent, if the coordinates are over a glyph in the text area
|
|
|
8759 -- nil otherwise.
|
|
|
8760
|
|
|
8761 If the coordinates are over a glyph, OBJ_X and OBJ_Y give the
|
|
|
8762 equivalent coordinates relative to the upper-left corner of the glyph.
|
|
|
8763
|
|
|
8764 If the coordinates are over a character, OBJ_X and OBJ_Y give the
|
|
|
8765 equivalent coordinates relative to the upper-left corner of the character.
|
|
|
8766
|
|
|
8767 Otherwise, OBJ_X and OBJ_Y are undefined.
|
|
|
8768 */
|
|
|
8769
|
|
|
8770 int
|
|
|
8771 pixel_to_glyph_translation (struct frame *f, int x_coord, int y_coord,
|
|
|
8772 int *col, int *row, int *obj_x, int *obj_y,
|
|
826
|
8773 struct window **w, Charbpos *charpos,
|
|
665
|
8774 Charbpos *closest, Charcount *modeline_closest,
|
|
428
|
8775 Lisp_Object *obj1, Lisp_Object *obj2)
|
|
|
8776 {
|
|
|
8777 struct device *d;
|
|
|
8778 struct pixel_to_glyph_translation_cache *cache;
|
|
|
8779 Lisp_Object window;
|
|
|
8780 int frm_left, frm_right, frm_top, frm_bottom;
|
|
|
8781 int low_x_coord, high_x_coord, low_y_coord, high_y_coord;
|
|
|
8782 int position = OVER_NOTHING;
|
|
|
8783 int device_check_failed = 0;
|
|
|
8784 display_line_dynarr *dla;
|
|
|
8785
|
|
|
8786 /* This is a safety valve in case this got called with a frame in
|
|
|
8787 the middle of being deleted. */
|
|
|
8788 if (!DEVICEP (f->device) || !DEVICE_LIVE_P (XDEVICE (f->device)))
|
|
|
8789 {
|
|
|
8790 device_check_failed = 1;
|
|
|
8791 d = NULL, cache = NULL; /* Warning suppression */
|
|
|
8792 }
|
|
|
8793 else
|
|
|
8794 {
|
|
|
8795 d = XDEVICE (f->device);
|
|
|
8796 cache = &d->pixel_to_glyph_cache;
|
|
|
8797 }
|
|
|
8798
|
|
|
8799 if (!device_check_failed
|
|
|
8800 && cache->valid
|
|
|
8801 && cache->frame == f
|
|
|
8802 && cache->low_x_coord <= x_coord
|
|
|
8803 && cache->high_x_coord > x_coord
|
|
|
8804 && cache->low_y_coord <= y_coord
|
|
|
8805 && cache->high_y_coord > y_coord)
|
|
|
8806 {
|
|
|
8807 *col = cache->col;
|
|
|
8808 *row = cache->row;
|
|
|
8809 *obj_x = cache->obj_x;
|
|
|
8810 *obj_y = cache->obj_y;
|
|
|
8811 *w = cache->w;
|
|
826
|
8812 *charpos = cache->charpos;
|
|
428
|
8813 *closest = cache->closest;
|
|
|
8814 *modeline_closest = cache->modeline_closest;
|
|
|
8815 *obj1 = cache->obj1;
|
|
|
8816 *obj2 = cache->obj2;
|
|
|
8817
|
|
|
8818 return cache->retval;
|
|
|
8819 }
|
|
|
8820 else
|
|
|
8821 {
|
|
|
8822 *col = 0;
|
|
|
8823 *row = 0;
|
|
|
8824 *obj_x = 0;
|
|
|
8825 *obj_y = 0;
|
|
|
8826 *w = 0;
|
|
826
|
8827 *charpos = 0;
|
|
428
|
8828 *closest = 0;
|
|
|
8829 *modeline_closest = -1;
|
|
|
8830 *obj1 = Qnil;
|
|
|
8831 *obj2 = Qnil;
|
|
|
8832
|
|
|
8833 low_x_coord = x_coord;
|
|
|
8834 high_x_coord = x_coord + 1;
|
|
|
8835 low_y_coord = y_coord;
|
|
|
8836 high_y_coord = y_coord + 1;
|
|
|
8837 }
|
|
|
8838
|
|
|
8839 if (device_check_failed)
|
|
|
8840 return OVER_NOTHING;
|
|
|
8841
|
|
|
8842 frm_left = FRAME_LEFT_BORDER_END (f);
|
|
|
8843 frm_right = FRAME_RIGHT_BORDER_START (f);
|
|
|
8844 frm_top = FRAME_TOP_BORDER_END (f);
|
|
|
8845 frm_bottom = FRAME_BOTTOM_BORDER_START (f);
|
|
|
8846
|
|
|
8847 /* Check if the mouse is outside of the text area actually used by
|
|
|
8848 redisplay. */
|
|
|
8849 if (y_coord < frm_top)
|
|
|
8850 {
|
|
|
8851 if (y_coord >= FRAME_TOP_BORDER_START (f))
|
|
|
8852 {
|
|
|
8853 low_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
8854 high_y_coord = frm_top;
|
|
|
8855 position = OVER_BORDER;
|
|
|
8856 }
|
|
|
8857 else if (y_coord >= 0)
|
|
|
8858 {
|
|
|
8859 low_y_coord = 0;
|
|
|
8860 high_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
8861 position = OVER_TOOLBAR;
|
|
|
8862 }
|
|
|
8863 else
|
|
|
8864 {
|
|
|
8865 low_y_coord = y_coord;
|
|
|
8866 high_y_coord = 0;
|
|
|
8867 position = OVER_OUTSIDE;
|
|
|
8868 }
|
|
|
8869 }
|
|
|
8870 else if (y_coord >= frm_bottom)
|
|
|
8871 {
|
|
|
8872 if (y_coord < FRAME_BOTTOM_BORDER_END (f))
|
|
|
8873 {
|
|
|
8874 low_y_coord = frm_bottom;
|
|
|
8875 high_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
8876 position = OVER_BORDER;
|
|
|
8877 }
|
|
|
8878 else if (y_coord < FRAME_PIXHEIGHT (f))
|
|
|
8879 {
|
|
|
8880 low_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
8881 high_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
8882 position = OVER_TOOLBAR;
|
|
|
8883 }
|
|
|
8884 else
|
|
|
8885 {
|
|
|
8886 low_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
8887 high_y_coord = y_coord;
|
|
|
8888 position = OVER_OUTSIDE;
|
|
|
8889 }
|
|
|
8890 }
|
|
|
8891
|
|
|
8892 if (position != OVER_TOOLBAR && position != OVER_BORDER)
|
|
|
8893 {
|
|
|
8894 if (x_coord < frm_left)
|
|
|
8895 {
|
|
|
8896 if (x_coord >= FRAME_LEFT_BORDER_START (f))
|
|
|
8897 {
|
|
|
8898 low_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
8899 high_x_coord = frm_left;
|
|
|
8900 position = OVER_BORDER;
|
|
|
8901 }
|
|
|
8902 else if (x_coord >= 0)
|
|
|
8903 {
|
|
|
8904 low_x_coord = 0;
|
|
|
8905 high_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
8906 position = OVER_TOOLBAR;
|
|
|
8907 }
|
|
|
8908 else
|
|
|
8909 {
|
|
|
8910 low_x_coord = x_coord;
|
|
|
8911 high_x_coord = 0;
|
|
|
8912 position = OVER_OUTSIDE;
|
|
|
8913 }
|
|
|
8914 }
|
|
|
8915 else if (x_coord >= frm_right)
|
|
|
8916 {
|
|
|
8917 if (x_coord < FRAME_RIGHT_BORDER_END (f))
|
|
|
8918 {
|
|
|
8919 low_x_coord = frm_right;
|
|
|
8920 high_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
8921 position = OVER_BORDER;
|
|
|
8922 }
|
|
|
8923 else if (x_coord < FRAME_PIXWIDTH (f))
|
|
|
8924 {
|
|
|
8925 low_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
8926 high_x_coord = FRAME_PIXWIDTH (f);
|
|
|
8927 position = OVER_TOOLBAR;
|
|
|
8928 }
|
|
|
8929 else
|
|
|
8930 {
|
|
|
8931 low_x_coord = FRAME_PIXWIDTH (f);
|
|
|
8932 high_x_coord = x_coord;
|
|
|
8933 position = OVER_OUTSIDE;
|
|
|
8934 }
|
|
|
8935 }
|
|
|
8936 }
|
|
|
8937
|
|
|
8938 #ifdef HAVE_TOOLBARS
|
|
|
8939 if (position == OVER_TOOLBAR)
|
|
|
8940 {
|
|
|
8941 *obj1 = toolbar_button_at_pixpos (f, x_coord, y_coord);
|
|
|
8942 *obj2 = Qnil;
|
|
|
8943 *w = 0;
|
|
|
8944 UPDATE_CACHE_RETURN;
|
|
|
8945 }
|
|
|
8946 #endif /* HAVE_TOOLBARS */
|
|
|
8947
|
|
|
8948 /* We still have to return the window the pointer is next to and its
|
|
|
8949 relative y position even if it is outside the x boundary. */
|
|
|
8950 if (x_coord < frm_left)
|
|
|
8951 x_coord = frm_left;
|
|
|
8952 else if (x_coord > frm_right)
|
|
|
8953 x_coord = frm_right;
|
|
|
8954
|
|
|
8955 /* Same in reverse. */
|
|
|
8956 if (y_coord < frm_top)
|
|
|
8957 y_coord = frm_top;
|
|
|
8958 else if (y_coord > frm_bottom)
|
|
|
8959 y_coord = frm_bottom;
|
|
|
8960
|
|
|
8961 /* Find what window the given coordinates are actually in. */
|
|
|
8962 window = f->root_window;
|
|
|
8963 *w = find_window_by_pixel_pos (x_coord, y_coord, window);
|
|
|
8964
|
|
|
8965 /* If we didn't find a window, we're done. */
|
|
|
8966 if (!*w)
|
|
|
8967 {
|
|
|
8968 UPDATE_CACHE_RETURN;
|
|
|
8969 }
|
|
|
8970 else if (position != OVER_NOTHING)
|
|
|
8971 {
|
|
|
8972 *closest = 0;
|
|
|
8973 *modeline_closest = -1;
|
|
|
8974
|
|
|
8975 if (high_y_coord <= frm_top || high_y_coord >= frm_bottom)
|
|
|
8976 {
|
|
|
8977 *w = 0;
|
|
|
8978 UPDATE_CACHE_RETURN;
|
|
|
8979 }
|
|
|
8980 }
|
|
|
8981
|
|
|
8982 /* Check if the window is a minibuffer but isn't active. */
|
|
|
8983 if (MINI_WINDOW_P (*w) && !minibuf_level)
|
|
|
8984 {
|
|
|
8985 /* Must reset the window value since some callers will ignore
|
|
|
8986 the return value if it is set. */
|
|
|
8987 *w = 0;
|
|
|
8988 UPDATE_CACHE_RETURN;
|
|
|
8989 }
|
|
|
8990
|
|
|
8991 /* See if the point is over window vertical divider */
|
|
|
8992 if (window_needs_vertical_divider (*w))
|
|
|
8993 {
|
|
|
8994 int div_x_high = WINDOW_RIGHT (*w);
|
|
|
8995 int div_x_low = div_x_high - window_divider_width (*w);
|
|
|
8996 int div_y_high = WINDOW_BOTTOM (*w);
|
|
|
8997 int div_y_low = WINDOW_TOP (*w);
|
|
|
8998
|
|
|
8999 if (div_x_low < x_coord && x_coord <= div_x_high &&
|
|
|
9000 div_y_low < y_coord && y_coord <= div_y_high)
|
|
|
9001 {
|
|
|
9002 low_x_coord = div_x_low;
|
|
|
9003 high_x_coord = div_x_high;
|
|
|
9004 low_y_coord = div_y_low;
|
|
|
9005 high_y_coord = div_y_high;
|
|
|
9006 position = OVER_V_DIVIDER;
|
|
|
9007 UPDATE_CACHE_RETURN;
|
|
|
9008 }
|
|
|
9009 }
|
|
|
9010
|
|
|
9011 dla = window_display_lines (*w, CURRENT_DISP);
|
|
|
9012
|
|
|
9013 for (*row = 0; *row < Dynarr_length (dla); (*row)++)
|
|
|
9014 {
|
|
|
9015 int really_over_nothing = 0;
|
|
|
9016 struct display_line *dl = Dynarr_atp (dla, *row);
|
|
|
9017
|
|
|
9018 if ((int) (dl->ypos - dl->ascent) <= y_coord
|
|
|
9019 && y_coord <= (int) (dl->ypos + dl->descent))
|
|
|
9020 {
|
|
|
9021 int check_margin_glyphs = 0;
|
|
|
9022 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
9023 struct rune *rb = 0;
|
|
|
9024
|
|
|
9025 if (x_coord < dl->bounds.left_white
|
|
|
9026 || x_coord >= dl->bounds.right_white)
|
|
|
9027 check_margin_glyphs = 1;
|
|
|
9028
|
|
|
9029 low_y_coord = dl->ypos - dl->ascent;
|
|
|
9030 high_y_coord = dl->ypos + dl->descent + 1;
|
|
|
9031
|
|
|
9032 if (position == OVER_BORDER
|
|
|
9033 || position == OVER_OUTSIDE
|
|
|
9034 || check_margin_glyphs)
|
|
|
9035 {
|
|
|
9036 int x_check, left_bound;
|
|
|
9037
|
|
|
9038 if (check_margin_glyphs)
|
|
|
9039 {
|
|
|
9040 x_check = x_coord;
|
|
|
9041 left_bound = dl->bounds.left_white;
|
|
|
9042 }
|
|
|
9043 else
|
|
|
9044 {
|
|
|
9045 x_check = high_x_coord;
|
|
|
9046 left_bound = frm_left;
|
|
|
9047 }
|
|
|
9048
|
|
|
9049 if (Dynarr_length (db->runes))
|
|
|
9050 {
|
|
|
9051 if (x_check <= left_bound)
|
|
|
9052 {
|
|
|
9053 if (dl->modeline)
|
|
826
|
9054 *modeline_closest = Dynarr_atp (db->runes, 0)->charpos;
|
|
428
|
9055 else
|
|
826
|
9056 *closest = Dynarr_atp (db->runes, 0)->charpos;
|
|
428
|
9057 }
|
|
|
9058 else
|
|
|
9059 {
|
|
|
9060 if (dl->modeline)
|
|
|
9061 *modeline_closest =
|
|
|
9062 Dynarr_atp (db->runes,
|
|
826
|
9063 Dynarr_length (db->runes) - 1)->charpos;
|
|
428
|
9064 else
|
|
|
9065 *closest =
|
|
|
9066 Dynarr_atp (db->runes,
|
|
826
|
9067 Dynarr_length (db->runes) - 1)->charpos;
|
|
428
|
9068 }
|
|
|
9069
|
|
|
9070 if (dl->modeline)
|
|
|
9071 *modeline_closest += dl->offset;
|
|
|
9072 else
|
|
|
9073 *closest += dl->offset;
|
|
|
9074 }
|
|
|
9075 else
|
|
|
9076 {
|
|
|
9077 /* #### What should be here. */
|
|
|
9078 if (dl->modeline)
|
|
|
9079 *modeline_closest = 0;
|
|
|
9080 else
|
|
|
9081 *closest = 0;
|
|
|
9082 }
|
|
|
9083
|
|
|
9084 if (check_margin_glyphs)
|
|
|
9085 {
|
|
|
9086 if (x_coord < dl->bounds.left_in
|
|
|
9087 || x_coord >= dl->bounds.right_in)
|
|
|
9088 {
|
|
|
9089 /* If we are over the outside margins then we
|
|
|
9090 know the loop over the text block isn't going
|
|
|
9091 to accomplish anything. So we go ahead and
|
|
|
9092 set what information we can right here and
|
|
|
9093 return. */
|
|
|
9094 (*row)--;
|
|
|
9095 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
9096 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
9097 &low_x_coord, &high_x_coord);
|
|
|
9098
|
|
|
9099 UPDATE_CACHE_RETURN;
|
|
|
9100 }
|
|
|
9101 }
|
|
|
9102 else
|
|
|
9103 UPDATE_CACHE_RETURN;
|
|
|
9104 }
|
|
|
9105
|
|
|
9106 for (*col = 0; *col <= Dynarr_length (db->runes); (*col)++)
|
|
|
9107 {
|
|
|
9108 int past_end = (*col == Dynarr_length (db->runes));
|
|
|
9109
|
|
|
9110 if (!past_end)
|
|
|
9111 rb = Dynarr_atp (db->runes, *col);
|
|
|
9112
|
|
|
9113 if (past_end ||
|
|
|
9114 (rb->xpos <= x_coord && x_coord < rb->xpos + rb->width))
|
|
|
9115 {
|
|
|
9116 if (past_end)
|
|
|
9117 {
|
|
|
9118 (*col)--;
|
|
|
9119 rb = Dynarr_atp (db->runes, *col);
|
|
|
9120 }
|
|
|
9121
|
|
826
|
9122 *charpos = rb->charpos + dl->offset;
|
|
428
|
9123 low_x_coord = rb->xpos;
|
|
|
9124 high_x_coord = rb->xpos + rb->width;
|
|
|
9125
|
|
|
9126 if (rb->type == RUNE_DGLYPH)
|
|
|
9127 {
|
|
|
9128 int elt = *col + 1;
|
|
|
9129
|
|
|
9130 /* Find the first character after the glyph. */
|
|
|
9131 while (elt < Dynarr_length (db->runes))
|
|
|
9132 {
|
|
|
9133 if (Dynarr_atp (db->runes, elt)->type != RUNE_DGLYPH)
|
|
|
9134 {
|
|
|
9135 if (dl->modeline)
|
|
|
9136 *modeline_closest =
|
|
826
|
9137 (Dynarr_atp (db->runes, elt)->charpos +
|
|
428
|
9138 dl->offset);
|
|
|
9139 else
|
|
|
9140 *closest =
|
|
826
|
9141 (Dynarr_atp (db->runes, elt)->charpos +
|
|
428
|
9142 dl->offset);
|
|
|
9143 break;
|
|
|
9144 }
|
|
|
9145
|
|
|
9146 elt++;
|
|
|
9147 }
|
|
|
9148
|
|
|
9149 /* In this case we failed to find a non-glyph
|
|
|
9150 character so we return the last position
|
|
|
9151 displayed on the line. */
|
|
|
9152 if (elt == Dynarr_length (db->runes))
|
|
|
9153 {
|
|
|
9154 if (dl->modeline)
|
|
826
|
9155 *modeline_closest = dl->end_charpos + dl->offset;
|
|
428
|
9156 else
|
|
826
|
9157 *closest = dl->end_charpos + dl->offset;
|
|
428
|
9158 really_over_nothing = 1;
|
|
|
9159 }
|
|
|
9160 }
|
|
|
9161 else
|
|
|
9162 {
|
|
|
9163 if (dl->modeline)
|
|
826
|
9164 *modeline_closest = rb->charpos + dl->offset;
|
|
428
|
9165 else
|
|
826
|
9166 *closest = rb->charpos + dl->offset;
|
|
428
|
9167 }
|
|
|
9168
|
|
|
9169 if (dl->modeline)
|
|
|
9170 {
|
|
|
9171 *row = window_displayed_height (*w);
|
|
|
9172
|
|
|
9173 if (position == OVER_NOTHING)
|
|
|
9174 position = OVER_MODELINE;
|
|
|
9175
|
|
|
9176 if (rb->type == RUNE_DGLYPH)
|
|
|
9177 {
|
|
|
9178 *obj1 = rb->object.dglyph.glyph;
|
|
|
9179 *obj2 = rb->object.dglyph.extent;
|
|
|
9180 }
|
|
|
9181 else if (rb->type == RUNE_CHAR)
|
|
|
9182 {
|
|
|
9183 *obj1 = Qnil;
|
|
|
9184 *obj2 = Qnil;
|
|
|
9185 }
|
|
|
9186 else
|
|
|
9187 {
|
|
|
9188 *obj1 = Qnil;
|
|
|
9189 *obj2 = Qnil;
|
|
|
9190 }
|
|
|
9191
|
|
|
9192 UPDATE_CACHE_RETURN;
|
|
|
9193 }
|
|
|
9194 else if (past_end
|
|
|
9195 || (rb->type == RUNE_CHAR
|
|
|
9196 && rb->object.chr.ch == '\n'))
|
|
|
9197 {
|
|
|
9198 (*row)--;
|
|
|
9199 /* At this point we may have glyphs in the right
|
|
|
9200 inside margin. */
|
|
|
9201 if (check_margin_glyphs)
|
|
|
9202 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
9203 &low_x_coord, &high_x_coord);
|
|
|
9204 UPDATE_CACHE_RETURN;
|
|
|
9205 }
|
|
|
9206 else
|
|
|
9207 {
|
|
|
9208 (*row)--;
|
|
|
9209 if (rb->type == RUNE_DGLYPH)
|
|
|
9210 {
|
|
|
9211 *obj1 = rb->object.dglyph.glyph;
|
|
|
9212 *obj2 = rb->object.dglyph.extent;
|
|
|
9213 }
|
|
|
9214 else if (rb->type == RUNE_CHAR)
|
|
|
9215 {
|
|
|
9216 *obj1 = Qnil;
|
|
|
9217 *obj2 = Qnil;
|
|
|
9218 }
|
|
|
9219 else
|
|
|
9220 {
|
|
|
9221 *obj1 = Qnil;
|
|
|
9222 *obj2 = Qnil;
|
|
|
9223 }
|
|
|
9224
|
|
|
9225 *obj_x = x_coord - rb->xpos;
|
|
|
9226 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
9227
|
|
|
9228 /* At this point we may have glyphs in the left
|
|
|
9229 inside margin. */
|
|
|
9230 if (check_margin_glyphs)
|
|
|
9231 get_position_object (dl, obj1, obj2, x_coord, 0, 0);
|
|
|
9232
|
|
|
9233 if (position == OVER_NOTHING && !really_over_nothing)
|
|
|
9234 position = OVER_TEXT;
|
|
|
9235
|
|
|
9236 UPDATE_CACHE_RETURN;
|
|
|
9237 }
|
|
|
9238 }
|
|
|
9239 }
|
|
|
9240 }
|
|
|
9241 }
|
|
|
9242
|
|
|
9243 *row = Dynarr_length (dla) - 1;
|
|
|
9244 if (FRAME_WIN_P (f))
|
|
|
9245 {
|
|
|
9246 int bot_elt = Dynarr_length (dla) - 1;
|
|
|
9247
|
|
|
9248 if (bot_elt >= 0)
|
|
|
9249 {
|
|
|
9250 struct display_line *dl = Dynarr_atp (dla, bot_elt);
|
|
|
9251 int adj_area = y_coord - (dl->ypos + dl->descent);
|
|
|
9252 Lisp_Object lwin;
|
|
|
9253 int defheight;
|
|
|
9254
|
|
793
|
9255 lwin = wrap_window (*w);
|
|
428
|
9256 default_face_height_and_width (lwin, 0, &defheight);
|
|
|
9257
|
|
|
9258 *row += (adj_area / defheight);
|
|
|
9259 }
|
|
|
9260 }
|
|
|
9261
|
|
|
9262 /* #### This should be checked out some more to determine what
|
|
|
9263 should really be going on. */
|
|
|
9264 if (!MARKERP ((*w)->start[CURRENT_DISP]))
|
|
|
9265 *closest = 0;
|
|
|
9266 else
|
|
442
|
9267 *closest = end_of_last_line_may_error (*w,
|
|
428
|
9268 marker_position ((*w)->start[CURRENT_DISP]));
|
|
|
9269 *col = 0;
|
|
|
9270 UPDATE_CACHE_RETURN;
|
|
|
9271 }
|
|
|
9272 #undef UPDATE_CACHE_RETURN
|
|
|
9273
|
|
|
9274
|
|
|
9275 /***************************************************************************/
|
|
|
9276 /* */
|
|
|
9277 /* Lisp functions */
|
|
|
9278 /* */
|
|
|
9279 /***************************************************************************/
|
|
|
9280
|
|
|
9281 DEFUN ("redisplay-echo-area", Fredisplay_echo_area, 0, 0, 0, /*
|
|
|
9282 Ensure that all minibuffers are correctly showing the echo area.
|
|
|
9283 */
|
|
|
9284 ())
|
|
|
9285 {
|
|
|
9286 Lisp_Object devcons, concons;
|
|
|
9287
|
|
1318
|
9288 if (in_display)
|
|
|
9289 return Qnil;
|
|
|
9290
|
|
428
|
9291 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
9292 {
|
|
|
9293 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
9294 Lisp_Object frmcons;
|
|
|
9295
|
|
1279
|
9296 if (DEVICE_STREAM_P (d))
|
|
|
9297 continue;
|
|
|
9298
|
|
428
|
9299 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
9300 {
|
|
|
9301 struct frame *f = XFRAME (XCAR (frmcons));
|
|
853
|
9302 int depth;
|
|
428
|
9303
|
|
|
9304 if (FRAME_REPAINT_P (f) && FRAME_HAS_MINIBUF_P (f))
|
|
|
9305 {
|
|
|
9306 Lisp_Object window = FRAME_MINIBUF_WINDOW (f);
|
|
442
|
9307
|
|
|
9308 MAYBE_DEVMETH (d, frame_output_begin, (f));
|
|
|
9309
|
|
428
|
9310 /*
|
|
|
9311 * If the frame size has changed, there may be random
|
|
|
9312 * chud on the screen left from previous messages
|
|
|
9313 * because redisplay_frame hasn't been called yet.
|
|
|
9314 * Clear the screen to get rid of the potential mess.
|
|
|
9315 */
|
|
|
9316 if (f->echo_area_garbaged)
|
|
|
9317 {
|
|
442
|
9318 MAYBE_DEVMETH (d, clear_frame, (f));
|
|
428
|
9319 f->echo_area_garbaged = 0;
|
|
|
9320 }
|
|
853
|
9321 depth = enter_redisplay_critical_section ();
|
|
428
|
9322 redisplay_window (window, 0);
|
|
853
|
9323 exit_redisplay_critical_section (depth);
|
|
442
|
9324 MAYBE_DEVMETH (d, frame_output_end, (f));
|
|
428
|
9325 }
|
|
|
9326 }
|
|
|
9327 }
|
|
|
9328
|
|
|
9329 return Qnil;
|
|
|
9330 }
|
|
|
9331
|
|
|
9332 DEFUN ("redraw-frame", Fredraw_frame, 0, 2, 0, /*
|
|
|
9333 Clear frame FRAME and output again what is supposed to appear on it.
|
|
|
9334 FRAME defaults to the selected frame if omitted.
|
|
|
9335 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
9336 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
9337 input and is guaranteed to proceed to completion.
|
|
|
9338 */
|
|
|
9339 (frame, no_preempt))
|
|
|
9340 {
|
|
|
9341 struct frame *f = decode_frame (frame);
|
|
|
9342 int count = specpdl_depth ();
|
|
|
9343
|
|
|
9344 if (!NILP (no_preempt))
|
|
853
|
9345 internal_bind_int (&disable_preemption, 1 + disable_preemption);
|
|
428
|
9346
|
|
|
9347 f->clear = 1;
|
|
|
9348 redisplay_frame (f, 1);
|
|
|
9349
|
|
442
|
9350 /* See the comment in Fredisplay_frame. */
|
|
|
9351 RESET_CHANGED_SET_FLAGS;
|
|
|
9352
|
|
771
|
9353 return unbind_to (count);
|
|
428
|
9354 }
|
|
|
9355
|
|
|
9356 DEFUN ("redisplay-frame", Fredisplay_frame, 0, 2, 0, /*
|
|
|
9357 Ensure that FRAME's contents are correctly displayed.
|
|
|
9358 This differs from `redraw-frame' in that it only redraws what needs to
|
|
|
9359 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
9360 the frame.
|
|
|
9361 FRAME defaults to the selected frame if omitted.
|
|
|
9362 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
9363 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
9364 input and is guaranteed to proceed to completion.
|
|
|
9365 */
|
|
|
9366 (frame, no_preempt))
|
|
|
9367 {
|
|
|
9368 struct frame *f = decode_frame (frame);
|
|
|
9369 int count = specpdl_depth ();
|
|
|
9370
|
|
|
9371 if (!NILP (no_preempt))
|
|
853
|
9372 internal_bind_int (&disable_preemption, 1 + disable_preemption);
|
|
428
|
9373
|
|
|
9374 redisplay_frame (f, 1);
|
|
|
9375
|
|
442
|
9376 /* If we don't reset the global redisplay flags here, subsequent
|
|
|
9377 changes to the display will not get registered by redisplay
|
|
|
9378 because it thinks it already has registered changes. If you
|
|
|
9379 really knew what you were doing you could confuse redisplay by
|
|
|
9380 calling Fredisplay_frame while updating another frame. We assume
|
|
|
9381 that if you know what you are doing you will not be that
|
|
|
9382 stupid. */
|
|
|
9383 RESET_CHANGED_SET_FLAGS;
|
|
|
9384
|
|
771
|
9385 return unbind_to (count);
|
|
428
|
9386 }
|
|
|
9387
|
|
|
9388 DEFUN ("redraw-device", Fredraw_device, 0, 2, 0, /*
|
|
|
9389 Clear device DEVICE and output again what is supposed to appear on it.
|
|
|
9390 DEVICE defaults to the selected device if omitted.
|
|
|
9391 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
9392 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
9393 input and is guaranteed to proceed to completion.
|
|
|
9394 */
|
|
|
9395 (device, no_preempt))
|
|
|
9396 {
|
|
|
9397 struct device *d = decode_device (device);
|
|
|
9398 Lisp_Object frmcons;
|
|
|
9399 int count = specpdl_depth ();
|
|
|
9400
|
|
|
9401 if (!NILP (no_preempt))
|
|
853
|
9402 internal_bind_int (&disable_preemption, 1 + disable_preemption);
|
|
428
|
9403
|
|
|
9404 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
9405 {
|
|
|
9406 XFRAME (XCAR (frmcons))->clear = 1;
|
|
|
9407 }
|
|
440
|
9408 redisplay_device (d, 0);
|
|
428
|
9409
|
|
442
|
9410 /* See the comment in Fredisplay_frame. */
|
|
|
9411 RESET_CHANGED_SET_FLAGS;
|
|
|
9412
|
|
771
|
9413 return unbind_to (count);
|
|
428
|
9414 }
|
|
|
9415
|
|
|
9416 DEFUN ("redisplay-device", Fredisplay_device, 0, 2, 0, /*
|
|
|
9417 Ensure that DEVICE's contents are correctly displayed.
|
|
|
9418 This differs from `redraw-device' in that it only redraws what needs to
|
|
|
9419 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
9420 the device.
|
|
|
9421 DEVICE defaults to the selected device if omitted.
|
|
|
9422 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
9423 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
9424 input and is guaranteed to proceed to completion.
|
|
853
|
9425
|
|
|
9426 Note: If you simply want everything redisplayed, the current idiom is
|
|
|
9427 `(sit-for 0)'.
|
|
428
|
9428 */
|
|
|
9429 (device, no_preempt))
|
|
|
9430 {
|
|
|
9431 struct device *d = decode_device (device);
|
|
|
9432 int count = specpdl_depth ();
|
|
|
9433
|
|
|
9434 if (!NILP (no_preempt))
|
|
853
|
9435 internal_bind_int (&disable_preemption, 1 + disable_preemption);
|
|
428
|
9436
|
|
440
|
9437 redisplay_device (d, 0);
|
|
428
|
9438
|
|
442
|
9439 /* See the comment in Fredisplay_frame. */
|
|
|
9440 RESET_CHANGED_SET_FLAGS;
|
|
|
9441
|
|
771
|
9442 return unbind_to (count);
|
|
428
|
9443 }
|
|
|
9444
|
|
|
9445 /* Big lie. Big lie. This will force all modelines to be updated
|
|
|
9446 regardless if the all flag is set or not. It remains in existence
|
|
|
9447 solely for backwards compatibility. */
|
|
|
9448 DEFUN ("redraw-modeline", Fredraw_modeline, 0, 1, 0, /*
|
|
|
9449 Force the modeline of the current buffer to be redisplayed.
|
|
|
9450 With optional non-nil ALL, force redisplay of all modelines.
|
|
|
9451 */
|
|
2286
|
9452 (UNUSED (all)))
|
|
428
|
9453 {
|
|
|
9454 MARK_MODELINE_CHANGED;
|
|
|
9455 return Qnil;
|
|
|
9456 }
|
|
|
9457
|
|
|
9458 DEFUN ("force-cursor-redisplay", Fforce_cursor_redisplay, 0, 1, 0, /*
|
|
|
9459 Force an immediate update of the cursor on FRAME.
|
|
|
9460 FRAME defaults to the selected frame if omitted.
|
|
|
9461 */
|
|
|
9462 (frame))
|
|
|
9463 {
|
|
1279
|
9464 struct frame *f = decode_frame (frame);
|
|
|
9465
|
|
|
9466 if (!FRAME_STREAM_P (f))
|
|
|
9467 redisplay_redraw_cursor (f, 1);
|
|
428
|
9468 return Qnil;
|
|
|
9469 }
|
|
|
9470
|
|
|
9471
|
|
|
9472 /***************************************************************************/
|
|
|
9473 /* */
|
|
872
|
9474 /* Change flags */
|
|
428
|
9475 /* */
|
|
|
9476 /***************************************************************************/
|
|
|
9477
|
|
|
9478 static void
|
|
2286
|
9479 margin_width_changed_in_frame (Lisp_Object UNUSED (specifier),
|
|
|
9480 struct frame *UNUSED (f),
|
|
|
9481 Lisp_Object UNUSED (oldval))
|
|
428
|
9482 {
|
|
|
9483 /* Nothing to be done? */
|
|
|
9484 }
|
|
|
9485
|
|
|
9486 int
|
|
2286
|
9487 redisplay_variable_changed (Lisp_Object UNUSED (sym),
|
|
|
9488 Lisp_Object *UNUSED (val),
|
|
|
9489 Lisp_Object UNUSED (in_object),
|
|
|
9490 int UNUSED (flags))
|
|
428
|
9491 {
|
|
|
9492 /* #### clip_changed should really be renamed something like
|
|
|
9493 global_redisplay_change. */
|
|
|
9494 MARK_CLIP_CHANGED;
|
|
|
9495 return 0;
|
|
|
9496 }
|
|
|
9497
|
|
|
9498 /* This is called if the built-in glyphs have their properties
|
|
|
9499 changed. */
|
|
|
9500 void
|
|
2286
|
9501 redisplay_glyph_changed (Lisp_Object UNUSED (glyph),
|
|
|
9502 Lisp_Object UNUSED (property), Lisp_Object locale)
|
|
428
|
9503 {
|
|
|
9504 if (WINDOWP (locale))
|
|
|
9505 {
|
|
|
9506 MARK_FRAME_GLYPHS_CHANGED (XFRAME (WINDOW_FRAME (XWINDOW (locale))));
|
|
|
9507 }
|
|
|
9508 else if (FRAMEP (locale))
|
|
|
9509 {
|
|
|
9510 MARK_FRAME_GLYPHS_CHANGED (XFRAME (locale));
|
|
|
9511 }
|
|
|
9512 else if (DEVICEP (locale))
|
|
|
9513 {
|
|
|
9514 Lisp_Object frmcons;
|
|
|
9515 DEVICE_FRAME_LOOP (frmcons, XDEVICE (locale))
|
|
|
9516 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
|
9517 }
|
|
|
9518 else if (CONSOLEP (locale))
|
|
|
9519 {
|
|
|
9520 Lisp_Object frmcons, devcons;
|
|
|
9521 CONSOLE_FRAME_LOOP_NO_BREAK (frmcons, devcons, XCONSOLE (locale))
|
|
|
9522 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
|
9523 }
|
|
|
9524 else /* global or buffer */
|
|
|
9525 {
|
|
|
9526 Lisp_Object frmcons, devcons, concons;
|
|
|
9527 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
9528 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
|
9529 }
|
|
|
9530 }
|
|
|
9531
|
|
|
9532 static void
|
|
2286
|
9533 text_cursor_visible_p_changed (Lisp_Object UNUSED (specifier),
|
|
|
9534 struct window *w, Lisp_Object UNUSED (oldval))
|
|
428
|
9535 {
|
|
|
9536 if (XFRAME (w->frame)->init_finished)
|
|
|
9537 Fforce_cursor_redisplay (w->frame);
|
|
|
9538 }
|
|
|
9539
|
|
872
|
9540 void
|
|
|
9541 mark_buffers_changed (void)
|
|
|
9542 {
|
|
|
9543 MARK_TYPE_CHANGED (buffers);
|
|
|
9544 }
|
|
|
9545
|
|
|
9546 void
|
|
|
9547 mark_clip_changed (void)
|
|
|
9548 {
|
|
|
9549 MARK_TYPE_CHANGED (clip);
|
|
|
9550 }
|
|
|
9551
|
|
|
9552 void
|
|
|
9553 mark_extents_changed (void)
|
|
|
9554 {
|
|
|
9555 MARK_TYPE_CHANGED (extents);
|
|
|
9556 }
|
|
|
9557
|
|
|
9558 void
|
|
|
9559 mark_icon_changed (void)
|
|
|
9560 {
|
|
|
9561 MARK_TYPE_CHANGED (icon);
|
|
|
9562 }
|
|
|
9563
|
|
|
9564 void
|
|
|
9565 mark_menubar_changed (void)
|
|
|
9566 {
|
|
|
9567 MARK_TYPE_CHANGED (menubar);
|
|
|
9568 }
|
|
|
9569
|
|
|
9570 void
|
|
|
9571 mark_modeline_changed (void)
|
|
|
9572 {
|
|
|
9573 MARK_TYPE_CHANGED (modeline);
|
|
|
9574 }
|
|
|
9575
|
|
|
9576 void
|
|
|
9577 mark_point_changed (void)
|
|
|
9578 {
|
|
|
9579 MARK_TYPE_CHANGED (point);
|
|
|
9580 }
|
|
|
9581
|
|
|
9582 void
|
|
|
9583 mark_toolbar_changed (void)
|
|
|
9584 {
|
|
|
9585 MARK_TYPE_CHANGED (toolbar);
|
|
|
9586 }
|
|
|
9587
|
|
|
9588 void
|
|
|
9589 mark_gutter_changed (void)
|
|
|
9590 {
|
|
|
9591 MARK_TYPE_CHANGED (gutter);
|
|
|
9592 }
|
|
|
9593
|
|
|
9594 void
|
|
|
9595 mark_glyphs_changed (void)
|
|
|
9596 {
|
|
|
9597 MARK_TYPE_CHANGED (glyphs);
|
|
|
9598 }
|
|
|
9599
|
|
|
9600 void
|
|
|
9601 mark_subwindows_changed (void)
|
|
|
9602 {
|
|
|
9603 MARK_TYPE_CHANGED (subwindows);
|
|
|
9604 }
|
|
|
9605
|
|
|
9606 void
|
|
|
9607 mark_subwindows_state_changed (void)
|
|
|
9608 {
|
|
|
9609 MARK_TYPE_CHANGED (subwindows_state);
|
|
|
9610 }
|
|
|
9611
|
|
428
|
9612 #ifdef MEMORY_USAGE_STATS
|
|
|
9613
|
|
|
9614
|
|
|
9615 /***************************************************************************/
|
|
|
9616 /* */
|
|
|
9617 /* memory usage computation */
|
|
|
9618 /* */
|
|
|
9619 /***************************************************************************/
|
|
|
9620
|
|
|
9621 static int
|
|
|
9622 compute_rune_dynarr_usage (rune_dynarr *dyn, struct overhead_stats *ovstats)
|
|
|
9623 {
|
|
|
9624 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
|
9625 }
|
|
|
9626
|
|
|
9627 static int
|
|
|
9628 compute_display_block_dynarr_usage (display_block_dynarr *dyn,
|
|
|
9629 struct overhead_stats *ovstats)
|
|
|
9630 {
|
|
|
9631 int total, i;
|
|
|
9632
|
|
|
9633 if (!dyn)
|
|
|
9634 return 0;
|
|
|
9635
|
|
|
9636 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
9637 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
9638 total += compute_rune_dynarr_usage (Dynarr_at (dyn, i).runes, ovstats);
|
|
|
9639
|
|
|
9640 return total;
|
|
|
9641 }
|
|
|
9642
|
|
|
9643 static int
|
|
|
9644 compute_glyph_block_dynarr_usage (glyph_block_dynarr *dyn,
|
|
|
9645 struct overhead_stats *ovstats)
|
|
|
9646 {
|
|
|
9647 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
|
9648 }
|
|
|
9649
|
|
|
9650 int
|
|
|
9651 compute_display_line_dynarr_usage (display_line_dynarr *dyn,
|
|
|
9652 struct overhead_stats *ovstats)
|
|
|
9653 {
|
|
|
9654 int total, i;
|
|
|
9655
|
|
|
9656 if (!dyn)
|
|
|
9657 return 0;
|
|
|
9658
|
|
|
9659 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
9660 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
9661 {
|
|
|
9662 struct display_line *dl = &Dynarr_at (dyn, i);
|
|
|
9663 total += compute_display_block_dynarr_usage(dl->display_blocks, ovstats);
|
|
|
9664 total += compute_glyph_block_dynarr_usage (dl->left_glyphs, ovstats);
|
|
|
9665 total += compute_glyph_block_dynarr_usage (dl->right_glyphs, ovstats);
|
|
|
9666 }
|
|
|
9667
|
|
|
9668 return total;
|
|
|
9669 }
|
|
|
9670
|
|
|
9671 int
|
|
|
9672 compute_line_start_cache_dynarr_usage (line_start_cache_dynarr *dyn,
|
|
|
9673 struct overhead_stats *ovstats)
|
|
|
9674 {
|
|
|
9675 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
|
9676 }
|
|
|
9677
|
|
|
9678 #endif /* MEMORY_USAGE_STATS */
|
|
|
9679
|
|
1204
|
9680 #ifdef ERROR_CHECK_DISPLAY
|
|
|
9681
|
|
800
|
9682 static int
|
|
2286
|
9683 sledgehammer_check_redisplay_structs_1 (struct window *w,
|
|
|
9684 void *UNUSED (closure))
|
|
800
|
9685 {
|
|
|
9686 int i, j;
|
|
|
9687 display_line_dynarr *dl;
|
|
|
9688
|
|
|
9689 dl = window_display_lines (w, CURRENT_DISP);
|
|
|
9690
|
|
|
9691 for (i = 0; i < Dynarr_largest (dl); i++)
|
|
|
9692 for (j = i + 1; j < Dynarr_largest (dl); j++)
|
|
|
9693 assert (Dynarr_atp (dl, i)->display_blocks !=
|
|
|
9694 Dynarr_atp (dl, j)->display_blocks);
|
|
|
9695
|
|
|
9696 dl = window_display_lines (w, DESIRED_DISP);
|
|
|
9697
|
|
|
9698 for (i = 0; i < Dynarr_largest (dl); i++)
|
|
|
9699 for (j = i + 1; j < Dynarr_largest (dl); j++)
|
|
|
9700 assert (Dynarr_atp (dl, i)->display_blocks !=
|
|
|
9701 Dynarr_atp (dl, j)->display_blocks);
|
|
|
9702
|
|
|
9703 return 0;
|
|
|
9704 }
|
|
|
9705
|
|
|
9706 static void
|
|
|
9707 sledgehammer_check_redisplay_structs (void)
|
|
|
9708 {
|
|
|
9709 map_windows (0, sledgehammer_check_redisplay_structs_1, NULL);
|
|
|
9710 }
|
|
|
9711
|
|
1204
|
9712 #endif /* ERROR_CHECK_DISPLAY */
|
|
|
9713
|
|
428
|
9714
|
|
|
9715 /***************************************************************************/
|
|
|
9716 /* */
|
|
|
9717 /* initialization */
|
|
|
9718 /* */
|
|
|
9719 /***************************************************************************/
|
|
|
9720
|
|
|
9721 void
|
|
|
9722 init_redisplay (void)
|
|
|
9723 {
|
|
|
9724 disable_preemption = 0;
|
|
|
9725 preemption_count = 0;
|
|
|
9726
|
|
|
9727 #ifndef PDUMP
|
|
|
9728 if (!initialized)
|
|
|
9729 #endif
|
|
|
9730 {
|
|
440
|
9731 if (!cmotion_display_lines)
|
|
|
9732 cmotion_display_lines = Dynarr_new (display_line);
|
|
867
|
9733 if (!mode_spec_ibyte_string)
|
|
|
9734 mode_spec_ibyte_string = Dynarr_new (Ibyte);
|
|
440
|
9735 if (!formatted_string_extent_dynarr)
|
|
|
9736 formatted_string_extent_dynarr = Dynarr_new (EXTENT);
|
|
|
9737 if (!formatted_string_extent_start_dynarr)
|
|
|
9738 formatted_string_extent_start_dynarr = Dynarr_new (Bytecount);
|
|
|
9739 if (!formatted_string_extent_end_dynarr)
|
|
|
9740 formatted_string_extent_end_dynarr = Dynarr_new (Bytecount);
|
|
|
9741 if (!internal_cache)
|
|
|
9742 internal_cache = Dynarr_new (line_start_cache);
|
|
428
|
9743 }
|
|
|
9744
|
|
|
9745 /* window system is nil when in -batch mode */
|
|
|
9746 if (!initialized || noninteractive)
|
|
|
9747 return;
|
|
|
9748
|
|
|
9749 /* If the user wants to use a window system, we shouldn't bother
|
|
|
9750 initializing the terminal. This is especially important when the
|
|
|
9751 terminal is so dumb that emacs gives up before and doesn't bother
|
|
|
9752 using the window system.
|
|
|
9753
|
|
|
9754 If the DISPLAY environment variable is set, try to use X, and die
|
|
|
9755 with an error message if that doesn't work. */
|
|
|
9756
|
|
|
9757 #ifdef HAVE_X_WINDOWS
|
|
|
9758 if (!strcmp (display_use, "x"))
|
|
|
9759 {
|
|
|
9760 /* Some stuff checks this way early. */
|
|
|
9761 Vwindow_system = Qx;
|
|
|
9762 Vinitial_window_system = Qx;
|
|
|
9763 return;
|
|
|
9764 }
|
|
|
9765 #endif /* HAVE_X_WINDOWS */
|
|
|
9766
|
|
462
|
9767 #ifdef HAVE_GTK
|
|
|
9768 if (!strcmp (display_use, "gtk"))
|
|
|
9769 {
|
|
|
9770 Vwindow_system = Qgtk;
|
|
|
9771 Vinitial_window_system = Qgtk;
|
|
|
9772 return;
|
|
|
9773 }
|
|
|
9774 #endif
|
|
|
9775
|
|
428
|
9776 #ifdef HAVE_MS_WINDOWS
|
|
|
9777 if (!strcmp (display_use, "mswindows"))
|
|
|
9778 {
|
|
|
9779 /* Some stuff checks this way early. */
|
|
|
9780 Vwindow_system = Qmswindows;
|
|
|
9781 Vinitial_window_system = Qmswindows;
|
|
|
9782 return;
|
|
|
9783 }
|
|
|
9784 #endif /* HAVE_MS_WINDOWS */
|
|
|
9785
|
|
|
9786 #ifdef HAVE_TTY
|
|
|
9787 /* If no window system has been specified, try to use the terminal. */
|
|
|
9788 if (!isatty (0))
|
|
|
9789 {
|
|
|
9790 stderr_out ("XEmacs: standard input is not a tty\n");
|
|
|
9791 exit (1);
|
|
|
9792 }
|
|
|
9793
|
|
|
9794 /* Look at the TERM variable */
|
|
771
|
9795 if (!egetenv ("TERM"))
|
|
428
|
9796 {
|
|
|
9797 stderr_out ("Please set the environment variable TERM; see tset(1).\n");
|
|
|
9798 exit (1);
|
|
|
9799 }
|
|
|
9800
|
|
|
9801 Vinitial_window_system = Qtty;
|
|
|
9802 return;
|
|
|
9803 #else /* not HAVE_TTY */
|
|
|
9804 /* No DISPLAY specified, and no TTY support. */
|
|
|
9805 stderr_out ("XEmacs: Cannot open display.\n\
|
|
|
9806 Please set the environmental variable DISPLAY to an appropriate value.\n");
|
|
|
9807 exit (1);
|
|
|
9808 #endif
|
|
|
9809 /* Unreached. */
|
|
|
9810 }
|
|
|
9811
|
|
|
9812 void
|
|
|
9813 syms_of_redisplay (void)
|
|
|
9814 {
|
|
563
|
9815 DEFSYMBOL (Qcursor_in_echo_area);
|
|
|
9816 DEFSYMBOL (Qdisplay_warning_buffer);
|
|
|
9817 DEFSYMBOL (Qbar_cursor);
|
|
|
9818 DEFSYMBOL (Qtop_bottom);
|
|
|
9819 DEFSYMBOL (Qbuffer_list_changed_hook);
|
|
428
|
9820
|
|
|
9821 DEFSUBR (Fredisplay_echo_area);
|
|
|
9822 DEFSUBR (Fredraw_frame);
|
|
|
9823 DEFSUBR (Fredisplay_frame);
|
|
|
9824 DEFSUBR (Fredraw_device);
|
|
|
9825 DEFSUBR (Fredisplay_device);
|
|
|
9826 DEFSUBR (Fredraw_modeline);
|
|
|
9827 DEFSUBR (Fforce_cursor_redisplay);
|
|
|
9828 }
|
|
|
9829
|
|
|
9830 void
|
|
|
9831 vars_of_redisplay (void)
|
|
|
9832 {
|
|
1292
|
9833 QSin_redisplay = build_msg_string ("(in redisplay)");
|
|
|
9834 staticpro (&QSin_redisplay);
|
|
428
|
9835
|
|
1318
|
9836 Vpost_redisplay_actions = Qnil;
|
|
|
9837 staticpro (&Vpost_redisplay_actions);
|
|
|
9838
|
|
428
|
9839 #if 0
|
|
|
9840 staticpro (&last_arrow_position);
|
|
|
9841 staticpro (&last_arrow_string);
|
|
|
9842 last_arrow_position = Qnil;
|
|
|
9843 last_arrow_string = Qnil;
|
|
|
9844 #endif /* 0 */
|
|
|
9845
|
|
|
9846 /* #### Probably temporary */
|
|
|
9847 DEFVAR_INT ("redisplay-cache-adjustment", &cache_adjustment /*
|
|
|
9848 \(Temporary) Setting this will impact the performance of the internal
|
|
|
9849 line start cache.
|
|
|
9850 */ );
|
|
|
9851 cache_adjustment = 2;
|
|
|
9852
|
|
1268
|
9853 DEFVAR_INT ("maximum-preempts", &max_preempts /*
|
|
|
9854 Maximum number of times redisplay can be preempted by user input.
|
|
|
9855 */ );
|
|
|
9856 max_preempts = INIT_MAX_PREEMPTS;
|
|
|
9857
|
|
428
|
9858 DEFVAR_INT_MAGIC ("pixel-vertical-clip-threshold", &vertical_clip /*
|
|
|
9859 Minimum pixel height for clipped bottom display line.
|
|
|
9860 A clipped line shorter than this won't be displayed.
|
|
|
9861 */ ,
|
|
|
9862 redisplay_variable_changed);
|
|
|
9863 vertical_clip = 5;
|
|
|
9864
|
|
|
9865 DEFVAR_INT_MAGIC ("pixel-horizontal-clip-threshold", &horizontal_clip /*
|
|
|
9866 Minimum visible area for clipped glyphs at right boundary.
|
|
|
9867 Clipped glyphs shorter than this won't be displayed.
|
|
|
9868 Only pixmap glyph instances are currently allowed to be clipped.
|
|
|
9869 */ ,
|
|
|
9870 redisplay_variable_changed);
|
|
|
9871 horizontal_clip = 5;
|
|
|
9872
|
|
|
9873 DEFVAR_LISP ("global-mode-string", &Vglobal_mode_string /*
|
|
|
9874 String displayed by modeline-format's "%m" specification.
|
|
|
9875 */ );
|
|
|
9876 Vglobal_mode_string = Qnil;
|
|
|
9877
|
|
|
9878 DEFVAR_LISP_MAGIC ("overlay-arrow-position", &Voverlay_arrow_position /*
|
|
|
9879 Marker for where to display an arrow on top of the buffer text.
|
|
|
9880 This must be the beginning of a line in order to work.
|
|
|
9881 See also `overlay-arrow-string'.
|
|
|
9882 */ ,
|
|
|
9883 redisplay_variable_changed);
|
|
|
9884 Voverlay_arrow_position = Qnil;
|
|
|
9885
|
|
|
9886 DEFVAR_LISP_MAGIC ("overlay-arrow-string", &Voverlay_arrow_string /*
|
|
442
|
9887 String or glyph to display as an arrow. See also `overlay-arrow-position'.
|
|
444
|
9888 \(Note that despite the name of this variable, it can be set to a glyph as
|
|
442
|
9889 well as a string.)
|
|
428
|
9890 */ ,
|
|
|
9891 redisplay_variable_changed);
|
|
|
9892 Voverlay_arrow_string = Qnil;
|
|
|
9893
|
|
|
9894 DEFVAR_INT ("scroll-step", &scroll_step /*
|
|
|
9895 *The number of lines to try scrolling a window by when point moves out.
|
|
|
9896 If that fails to bring point back on frame, point is centered instead.
|
|
|
9897 If this is zero, point is always centered after it moves off screen.
|
|
|
9898 */ );
|
|
|
9899 scroll_step = 0;
|
|
|
9900
|
|
|
9901 DEFVAR_INT ("scroll-conservatively", &scroll_conservatively /*
|
|
|
9902 *Scroll up to this many lines, to bring point back on screen.
|
|
|
9903 */ );
|
|
|
9904 scroll_conservatively = 0;
|
|
|
9905
|
|
|
9906 DEFVAR_BOOL_MAGIC ("truncate-partial-width-windows",
|
|
|
9907 &truncate_partial_width_windows /*
|
|
|
9908 *Non-nil means truncate lines in all windows less than full frame wide.
|
|
|
9909 */ ,
|
|
|
9910 redisplay_variable_changed);
|
|
|
9911 truncate_partial_width_windows = 1;
|
|
|
9912
|
|
442
|
9913 DEFVAR_LISP ("visible-bell", &Vvisible_bell /*
|
|
|
9914 *Non-nil substitutes a visual signal for the audible bell.
|
|
|
9915
|
|
|
9916 Default behavior is to flash the whole screen. On some platforms,
|
|
|
9917 special effects are available using the following values:
|
|
|
9918
|
|
3025
|
9919 `display' Flash the whole screen (ie, the default behavior).
|
|
|
9920 `top-bottom' Flash only the top and bottom lines of the selected frame.
|
|
442
|
9921
|
|
|
9922 When effects are unavailable on a platform, the visual bell is the
|
|
|
9923 default, whole screen. (Currently only X supports any special effects.)
|
|
428
|
9924 */ );
|
|
442
|
9925 Vvisible_bell = Qnil;
|
|
428
|
9926
|
|
|
9927 DEFVAR_BOOL ("no-redraw-on-reenter", &no_redraw_on_reenter /*
|
|
|
9928 *Non-nil means no need to redraw entire frame after suspending.
|
|
|
9929 A non-nil value is useful if the terminal can automatically preserve
|
|
|
9930 Emacs's frame display when you reenter Emacs.
|
|
|
9931 It is up to you to set this variable if your terminal can do that.
|
|
|
9932 */ );
|
|
|
9933 no_redraw_on_reenter = 0;
|
|
|
9934
|
|
|
9935 DEFVAR_LISP ("window-system", &Vwindow_system /*
|
|
|
9936 A symbol naming the window-system under which Emacs is running,
|
|
|
9937 such as `x', or nil if emacs is running on an ordinary terminal.
|
|
|
9938
|
|
|
9939 Do not use this variable, except for GNU Emacs compatibility, as it
|
|
|
9940 gives wrong values in a multi-device environment. Use `console-type'
|
|
|
9941 instead.
|
|
|
9942 */ );
|
|
|
9943 Vwindow_system = Qnil;
|
|
|
9944
|
|
|
9945 /* #### Temporary shit until window-system is eliminated. */
|
|
|
9946 DEFVAR_CONST_LISP ("initial-window-system", &Vinitial_window_system /*
|
|
|
9947 DON'T TOUCH
|
|
|
9948 */ );
|
|
|
9949 Vinitial_window_system = Qnil;
|
|
|
9950
|
|
|
9951 DEFVAR_BOOL ("cursor-in-echo-area", &cursor_in_echo_area /*
|
|
|
9952 Non-nil means put cursor in minibuffer, at end of any message there.
|
|
|
9953 */ );
|
|
|
9954 cursor_in_echo_area = 0;
|
|
|
9955
|
|
|
9956 /* #### Shouldn't this be generalized as follows:
|
|
|
9957
|
|
|
9958 if nil, use block cursor.
|
|
|
9959 if a number, use a bar cursor of that width.
|
|
|
9960 Otherwise, use a 1-pixel bar cursor.
|
|
|
9961
|
|
|
9962 #### Or better yet, this variable should be trashed entirely
|
|
|
9963 (use a Lisp-magic variable to maintain compatibility)
|
|
|
9964 and a specifier `cursor-shape' added, which allows a block
|
|
|
9965 cursor, a bar cursor, a flashing block or bar cursor,
|
|
|
9966 maybe a caret cursor, etc. */
|
|
|
9967
|
|
|
9968 DEFVAR_LISP ("bar-cursor", &Vbar_cursor /*
|
|
448
|
9969 *Use vertical bar cursor if non-nil. If t width is 1 pixel, otherwise 2.
|
|
428
|
9970 */ );
|
|
|
9971 Vbar_cursor = Qnil;
|
|
|
9972
|
|
442
|
9973 DEFVAR_LISP ("buffer-list-changed-hook", &Vbuffer_list_changed_hook /*
|
|
|
9974 Function or functions to call when a frame's buffer list has changed.
|
|
|
9975 This is called during redisplay, before redisplaying each frame.
|
|
|
9976 Functions on this hook are called with one argument, the frame.
|
|
|
9977 */ );
|
|
|
9978 Vbuffer_list_changed_hook = Qnil;
|
|
|
9979
|
|
428
|
9980 DEFVAR_INT ("display-warning-tick", &display_warning_tick /*
|
|
|
9981 Bump this to tell the C code to call `display-warning-buffer'
|
|
|
9982 at next redisplay. You should not normally change this; the function
|
|
|
9983 `display-warning' automatically does this at appropriate times.
|
|
|
9984 */ );
|
|
|
9985 display_warning_tick = 0;
|
|
|
9986
|
|
|
9987 DEFVAR_BOOL ("inhibit-warning-display", &inhibit_warning_display /*
|
|
|
9988 Non-nil means inhibit display of warning messages.
|
|
|
9989 You should *bind* this, not set it. Any pending warning messages
|
|
|
9990 will be displayed when the binding no longer applies.
|
|
|
9991 */ );
|
|
|
9992 /* reset to 0 by startup.el after the splash screen has displayed.
|
|
|
9993 This way, the warnings don't obliterate the splash screen. */
|
|
|
9994 inhibit_warning_display = 1;
|
|
|
9995
|
|
|
9996 DEFVAR_BOOL ("column-number-start-at-one", &column_number_start_at_one /*
|
|
|
9997 *Non-nil means column display number starts at 1.
|
|
|
9998 */ );
|
|
|
9999 column_number_start_at_one = 0;
|
|
|
10000 }
|
|
|
10001
|
|
|
10002 void
|
|
|
10003 specifier_vars_of_redisplay (void)
|
|
|
10004 {
|
|
|
10005 DEFVAR_SPECIFIER ("left-margin-width", &Vleft_margin_width /*
|
|
|
10006 *Width of left margin.
|
|
|
10007 This is a specifier; use `set-specifier' to change it.
|
|
|
10008 */ );
|
|
|
10009 Vleft_margin_width = Fmake_specifier (Qnatnum);
|
|
|
10010 set_specifier_fallback (Vleft_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
|
10011 set_specifier_caching (Vleft_margin_width,
|
|
438
|
10012 offsetof (struct window, left_margin_width),
|
|
428
|
10013 some_window_value_changed,
|
|
438
|
10014 offsetof (struct frame, left_margin_width),
|
|
444
|
10015 margin_width_changed_in_frame, 0);
|
|
428
|
10016
|
|
|
10017 DEFVAR_SPECIFIER ("right-margin-width", &Vright_margin_width /*
|
|
|
10018 *Width of right margin.
|
|
|
10019 This is a specifier; use `set-specifier' to change it.
|
|
|
10020 */ );
|
|
|
10021 Vright_margin_width = Fmake_specifier (Qnatnum);
|
|
|
10022 set_specifier_fallback (Vright_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
|
10023 set_specifier_caching (Vright_margin_width,
|
|
438
|
10024 offsetof (struct window, right_margin_width),
|
|
428
|
10025 some_window_value_changed,
|
|
438
|
10026 offsetof (struct frame, right_margin_width),
|
|
444
|
10027 margin_width_changed_in_frame, 0);
|
|
428
|
10028
|
|
|
10029 DEFVAR_SPECIFIER ("minimum-line-ascent", &Vminimum_line_ascent /*
|
|
|
10030 *Minimum ascent height of lines.
|
|
|
10031 This is a specifier; use `set-specifier' to change it.
|
|
|
10032 */ );
|
|
|
10033 Vminimum_line_ascent = Fmake_specifier (Qnatnum);
|
|
|
10034 set_specifier_fallback (Vminimum_line_ascent, list1 (Fcons (Qnil, Qzero)));
|
|
|
10035 set_specifier_caching (Vminimum_line_ascent,
|
|
438
|
10036 offsetof (struct window, minimum_line_ascent),
|
|
428
|
10037 some_window_value_changed,
|
|
444
|
10038 0, 0, 0);
|
|
428
|
10039
|
|
|
10040 DEFVAR_SPECIFIER ("minimum-line-descent", &Vminimum_line_descent /*
|
|
|
10041 *Minimum descent height of lines.
|
|
|
10042 This is a specifier; use `set-specifier' to change it.
|
|
|
10043 */ );
|
|
|
10044 Vminimum_line_descent = Fmake_specifier (Qnatnum);
|
|
|
10045 set_specifier_fallback (Vminimum_line_descent, list1 (Fcons (Qnil, Qzero)));
|
|
|
10046 set_specifier_caching (Vminimum_line_descent,
|
|
438
|
10047 offsetof (struct window, minimum_line_descent),
|
|
428
|
10048 some_window_value_changed,
|
|
444
|
10049 0, 0, 0);
|
|
428
|
10050
|
|
|
10051 DEFVAR_SPECIFIER ("use-left-overflow", &Vuse_left_overflow /*
|
|
|
10052 *Non-nil means use the left outside margin as extra whitespace when
|
|
3025
|
10053 displaying `whitespace' or `inside-margin' glyphs.
|
|
428
|
10054 This is a specifier; use `set-specifier' to change it.
|
|
|
10055 */ );
|
|
|
10056 Vuse_left_overflow = Fmake_specifier (Qboolean);
|
|
|
10057 set_specifier_fallback (Vuse_left_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
|
10058 set_specifier_caching (Vuse_left_overflow,
|
|
438
|
10059 offsetof (struct window, use_left_overflow),
|
|
428
|
10060 some_window_value_changed,
|
|
444
|
10061 0, 0, 0);
|
|
428
|
10062
|
|
|
10063 DEFVAR_SPECIFIER ("use-right-overflow", &Vuse_right_overflow /*
|
|
|
10064 *Non-nil means use the right outside margin as extra whitespace when
|
|
3025
|
10065 displaying `whitespace' or `inside-margin' glyphs.
|
|
428
|
10066 This is a specifier; use `set-specifier' to change it.
|
|
|
10067 */ );
|
|
|
10068 Vuse_right_overflow = Fmake_specifier (Qboolean);
|
|
|
10069 set_specifier_fallback (Vuse_right_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
|
10070 set_specifier_caching (Vuse_right_overflow,
|
|
438
|
10071 offsetof (struct window, use_right_overflow),
|
|
428
|
10072 some_window_value_changed,
|
|
444
|
10073 0, 0, 0);
|
|
428
|
10074
|
|
|
10075 DEFVAR_SPECIFIER ("text-cursor-visible-p", &Vtext_cursor_visible_p /*
|
|
|
10076 *Non-nil means the text cursor is visible (this is usually the case).
|
|
|
10077 This is a specifier; use `set-specifier' to change it.
|
|
|
10078 */ );
|
|
|
10079 Vtext_cursor_visible_p = Fmake_specifier (Qboolean);
|
|
|
10080 set_specifier_fallback (Vtext_cursor_visible_p, list1 (Fcons (Qnil, Qt)));
|
|
|
10081 set_specifier_caching (Vtext_cursor_visible_p,
|
|
438
|
10082 offsetof (struct window, text_cursor_visible_p),
|
|
428
|
10083 text_cursor_visible_p_changed,
|
|
444
|
10084 0, 0, 0);
|
|
428
|
10085
|
|
|
10086 }
|
