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0
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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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4 Copyright (C) 1995, 1996 Ben Wing.
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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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36 First: It Is Better To Be Correct Than Fast
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37 Second: Thou Shalt Not Run Elisp From Within Redisplay
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38 Third: It Is Better To Be Fast Than Not To Be
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39 ****************************************************************************/
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40
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41 #include <config.h>
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42 #include "lisp.h"
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272
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43 #include <limits.h>
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0
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44
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45 #include "buffer.h"
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46 #include "commands.h"
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47 #include "debug.h"
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48 #include "device.h"
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380
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49 #include "elhash.h"
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0
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50 #include "extents.h"
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51 #include "faces.h"
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52 #include "frame.h"
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53 #include "glyphs.h"
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398
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54 #include "gutter.h"
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0
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55 #include "insdel.h"
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56 #include "menubar.h"
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57 #include "objects.h"
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58 #include "process.h"
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59 #include "redisplay.h"
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60 #include "toolbar.h"
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61 #include "window.h"
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211
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62 #include "line-number.h"
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259
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63 #ifdef FILE_CODING
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64 #include "file-coding.h"
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70
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65 #endif
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16
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66
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149
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67 #ifdef HAVE_TTY
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68 #include "console-tty.h"
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272
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69 #ifdef HAVE_UNISTD_H
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70 #include <unistd.h> /* for isatty() */
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149
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71 #endif
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272
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72 #endif /* HAVE_TTY */
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149
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73
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0
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74 /* Note: We have to be careful throughout this code to properly handle
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75 and differentiate between Bufbytes and Emchars.
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76
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77 Since strings are generally composed of Bufbytes, I've taken the tack
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78 that any contiguous set of Bufbytes is called a "string", while
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79 any contiguous set of Emchars is called an "array". */
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80
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81 /* Return value to indicate a failure by an add_*_rune routine to add
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82 a rune, but no propagation information needs to be returned. */
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83 #define ADD_FAILED (prop_block_dynarr *) 1
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84
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85 #define BEGIN_GLYPHS 0
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86 #define END_GLYPHS 1
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87 #define LEFT_GLYPHS 2
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88 #define RIGHT_GLYPHS 3
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89
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90 /* Set the vertical clip to 0 if we are currently updating the line
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91 start cache. Otherwise for buffers of line height 1 it may fail to
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92 be able to work properly because regenerate_window will not layout
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93 a single line. */
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94 #define VERTICAL_CLIP(w, display) \
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95 (updating_line_start_cache \
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96 ? 0 \
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97 : ((WINDOW_TTY_P (w) | (!display && scroll_on_clipped_lines)) \
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98 ? INT_MAX \
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99 : vertical_clip))
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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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104 /* NOTE: Bytinds not Bufpos's in this structure. */
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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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398
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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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0
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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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117 Emchar ch; /* Character that is to be added. This is
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118 used to communicate this information to
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119 add_emchar_rune(). */
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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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94
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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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183
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127
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0
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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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132 Bytind bi_bufpos;
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133 Bytind bi_endpos;
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134 int pixpos;
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135 int max_pixpos;
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136 int blank_width; /* Width of the blank that is to be added.
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137 This is used to communicate this information
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138 to add_blank_rune().
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139
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140 This is also used rather cheesily to
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141 communicate the width of the eol-cursor-size
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142 blank that exists at the end of the line.
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143 add_emchar_rune() is called cheesily with
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144 the non-printing char '\n', which is stuck
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145 in the output routines with its width being
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146 BLANK_WIDTH. */
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147 Bytind bi_cursor_bufpos;/* This stores the buffer position of the cursor. */
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148 unsigned int cursor_type :3;
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149 int cursor_x; /* rune block cursor is at */
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150 int start_col; /* Number of character columns (each column has
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151 a width of the default char width) that still
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152 need to be skipped. This is used for horizontal
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153 scrolling, where a certain number of columns
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154 (those off the left side of the screen) need
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155 to be skipped before anything is displayed. */
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156 Bytind bi_start_col_enabled;
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398
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157 int start_col_xoffset; /* Number of pixels that still need to
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158 be skipped. This is used for
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159 horizontal scrolling of glyphs, where we want
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160 to be able to scroll over part of the glyph. */
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0
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161
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217
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162 int hscroll_glyph_width_adjust; /* how much the width of the hscroll
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163 glyph differs from space_width (w).
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164 0 if no hscroll glyph was used,
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165 i.e. the window is not scrolled
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166 horizontally. Used in tab
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167 calculations. */
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168
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0
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169 /* Information about the face the text should be displayed in and
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170 any begin-glyphs and end-glyphs. */
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171 struct extent_fragment *ef;
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172 face_index findex;
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173
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174 /* The height of a pixmap may either be predetermined if the user
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2
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175 has set a baseline value, or it may be dependent on whatever the
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176 line ascent and descent values end up being, based just on font
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177 information. In the first case we can immediately update the
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178 values, thus their inclusion here. In the last case we cannot
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179 determine the actual contribution to the line height until we
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180 have finished laying out all text on the line. Thus we propagate
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181 the max height of such pixmaps and do a final calculation after
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182 all text has been added to the line. */
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183 int new_ascent;
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184 int new_descent;
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185 int max_pixmap_height;
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186
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187 Lisp_Object result_str; /* String where we put the result of
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188 generating a formatted string in the modeline. */
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189 int is_modeline; /* Non-zero if we're generating the modeline. */
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190 Charcount modeline_charpos; /* Number of chars used in result_str so far;
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191 corresponds to bytepos. */
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192 Bytecount bytepos; /* Number of bytes used in result_str so far.
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193 We don't actually copy the bytes into result_str
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194 until the end because we don't know how big the
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195 string is going to be until then. */
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196 } pos_data;
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197
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198 enum prop_type
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199 {
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200 PROP_STRING,
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201 PROP_CHAR,
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202 PROP_MINIBUF_PROMPT,
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203 PROP_BLANK
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204 };
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205
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206 /* Data that should be propagated to the next line. Either a single
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207 Emchar or a string of Bufbyte's.
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208
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209 The actual data that is propagated ends up as a Dynarr of these
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210 blocks.
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211
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212 #### It's unclean that both Emchars and Bufbytes are here.
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213 */
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214
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185
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215 typedef struct prop_block prop_block;
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0
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216 struct prop_block
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217 {
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218 enum prop_type type;
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183
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219
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0
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220 union data
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272
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221 {
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222 struct
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223 {
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224 Bufbyte *str;
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225 Bytecount len; /* length of the string. */
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226 } p_string;
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227
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228 struct
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229 {
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230 Emchar ch;
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231 Bytind bi_cursor_bufpos; /* NOTE: is in Bytinds */
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232 unsigned int cursor_type :3;
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233 } p_char;
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234
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235 struct
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236 {
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237 int width;
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238 face_index findex;
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239 } p_blank;
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240 } data;
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0
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241 };
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242
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185
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243 typedef struct
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0
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244 {
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185
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245 Dynarr_declare (prop_block);
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0
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246 } prop_block_dynarr;
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247
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248
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249 static Charcount generate_fstring_runes (struct window *w, pos_data *data,
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250 Charcount pos, Charcount min_pos,
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284
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251 Charcount max_pos, Lisp_Object elt,
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0
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252 int depth, int max_pixsize,
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398
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253 face_index findex, int type,
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254 Charcount *offset,
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255 Lisp_Object cur_ext);
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0
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256 static prop_block_dynarr *add_glyph_rune (pos_data *data,
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257 struct glyph_block *gb,
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258 int pos_type, int allow_cursor,
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259 struct glyph_cachel *cachel);
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260 static Bytind create_text_block (struct window *w, struct display_line *dl,
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398
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261 Bytind bi_start_pos, prop_block_dynarr **prop,
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384
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262 int type);
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0
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263 static int create_overlay_glyph_block (struct window *w,
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264 struct display_line *dl);
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265 static void create_left_glyph_block (struct window *w,
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266 struct display_line *dl,
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267 int overlay_width);
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268 static void create_right_glyph_block (struct window *w,
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269 struct display_line *dl);
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270 static void redisplay_windows (Lisp_Object window, int skip_selected);
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271 static void decode_mode_spec (struct window *w, Emchar spec, int type);
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272 static void free_display_line (struct display_line *dl);
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273 static void update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
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274 Bufpos point, int no_regen);
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272
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275 static int point_visible (struct window *w, Bufpos point, int type);
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0
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276
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277 /* This used to be 10 but 30 seems to give much better performance. */
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278 #define INIT_MAX_PREEMPTS 30
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279 static int max_preempts;
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280
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272
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281 #define REDISPLAY_PREEMPTION_CHECK \
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282 ((void) \
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283 (preempted = \
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284 (!disable_preemption && \
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285 ((preemption_count < max_preempts) || !NILP (Vexecuting_macro)) && \
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286 (!INTERACTIVE || detect_input_pending ()))))
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0
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287
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288 /*
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289 * Redisplay global variables.
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290 */
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291
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292 /* We need a third set of display structures for the cursor motion
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293 routines. We used to just give each window a third set. However,
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294 we always fully regenerate the structures when needed so there
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295 isn't any reason we need more than a single set. */
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296 display_line_dynarr *cmotion_display_lines;
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297
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298 /* We store the extents that we need to generate in a Dynarr and then
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299 frob them all on at the end of generating the string. We do it
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300 this way rather than adding them as we generate the string because
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301 we don't store the text into the resulting string until we're done
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302 (to avoid having to resize the string multiple times), and we don't
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303 want to go around adding extents to a string when the extents might
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304 stretch off the end of the string. */
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398
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305 static EXTENT_dynarr *formatted_string_extent_dynarr;
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306 static Bytecount_dynarr *formatted_string_extent_start_dynarr;
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307 static Bytecount_dynarr *formatted_string_extent_end_dynarr;
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0
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308
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309
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310 /* #### probably temporary */
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311 int cache_adjustment;
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312
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313 /* This holds a string representing the text corresponding to a single
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314 modeline % spec. */
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185
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315 static Bufbyte_dynarr *mode_spec_bufbyte_string;
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0
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316
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317 int in_display; /* 1 if in redisplay. */
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318
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319 int disable_preemption; /* Used for debugging redisplay and for
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320 force-redisplay. */
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321
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322 /* We only allow max_preempts preemptions before we force a redisplay. */
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323 static int preemption_count;
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324
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325 /* Minimum pixel height of clipped bottom display line. */
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326 int vertical_clip;
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327
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328 /* Minimum visible pixel width of clipped glyphs at right margin. */
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329 int horizontal_clip;
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330
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331 /* Set if currently inside update_line_start_cache. */
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398
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332 static int updating_line_start_cache;
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0
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333
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334 /* Nonzero means reading single-character input with prompt
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335 so put cursor on minibuffer after the prompt. */
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336 int cursor_in_echo_area;
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337 Lisp_Object Qcursor_in_echo_area;
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338
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339 /* Nonzero means truncate lines in all windows less wide than the frame */
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340 int truncate_partial_width_windows;
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341
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342 /* non-nil if a buffer has changed since the last time redisplay completed */
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343 int buffers_changed;
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344 int buffers_changed_set;
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345
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346 /* non-nil if hscroll has changed somewhere or a buffer has been
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347 narrowed or widened */
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348 int clip_changed;
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349 int clip_changed_set;
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350
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351 /* non-nil if any extent has changed since the last time redisplay completed */
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352 int extents_changed;
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353 int extents_changed_set;
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354
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355 /* non-nil if any face has changed since the last time redisplay completed */
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356 int faces_changed;
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357
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358 /* Nonzero means some frames have been marked as garbaged */
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359 int frame_changed;
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360
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269
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361 /* non-zero if any of the builtin display glyphs (continuation,
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362 hscroll, control-arrow, etc) is in need of updating
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363 somewhere. */
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364 int glyphs_changed;
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365 int glyphs_changed_set;
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366
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404
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367 /* non-zero if any subwindow has been deleted. */
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384
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368 int subwindows_changed;
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369 int subwindows_changed_set;
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370
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398
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371 /* non-zero if any displayed subwindow is in need of updating
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372 somewhere. */
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373 int subwindows_state_changed;
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374 int subwindows_state_changed_set;
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375
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183
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376 /* This variable is 1 if the icon has to be updated.
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0
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377 It is set to 1 when `frame-icon-glyph' changes. */
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378 int icon_changed;
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379 int icon_changed_set;
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380
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183
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381 /* This variable is 1 if the menubar widget has to be updated.
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0
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382 It is set to 1 by set-menubar-dirty-flag and cleared when the widget
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269
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383 has been updated. */
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0
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384 int menubar_changed;
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385 int menubar_changed_set;
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386
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387 /* true iff we should redraw the modelines on the next redisplay */
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388 int modeline_changed;
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389 int modeline_changed_set;
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390
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391 /* non-nil if point has changed in some buffer since the last time
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392 redisplay completed */
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393 int point_changed;
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394 int point_changed_set;
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395
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|
|
396 /* non-nil if some frame has changed its size */
|
|
|
397 int size_changed;
|
|
|
398
|
|
|
399 /* non-nil if some device has signaled that it wants to change size */
|
|
|
400 int asynch_device_change_pending;
|
|
|
401
|
|
|
402 /* non-nil if any toolbar has changed */
|
|
|
403 int toolbar_changed;
|
|
|
404 int toolbar_changed_set;
|
|
|
405
|
|
398
|
406 /* non-nil if any gutter has changed */
|
|
|
407 int gutter_changed;
|
|
|
408 int gutter_changed_set;
|
|
|
409
|
|
0
|
410 /* non-nil if any window has changed since the last time redisplay completed */
|
|
|
411 int windows_changed;
|
|
|
412
|
|
2
|
413 /* non-nil if any frame's window structure has changed since the last
|
|
0
|
414 time redisplay completed */
|
|
|
415 int windows_structure_changed;
|
|
|
416
|
|
|
417 /* If non-nil, use vertical bar cursor. */
|
|
|
418 Lisp_Object Vbar_cursor;
|
|
|
419 Lisp_Object Qbar_cursor;
|
|
|
420
|
|
404
|
421 Lisp_Object Vvisible_bell; /* If true and the terminal will support it
|
|
|
422 then the frame will flash instead of
|
|
|
423 beeping when an error occurs */
|
|
0
|
424
|
|
|
425 /* Nonzero means no need to redraw the entire frame on resuming
|
|
|
426 a suspended Emacs. This is useful on terminals with multiple pages,
|
|
|
427 where one page is used for Emacs and another for all else. */
|
|
|
428 int no_redraw_on_reenter;
|
|
|
429
|
|
|
430 Lisp_Object Vwindow_system; /* nil or a symbol naming the window system
|
|
|
431 under which emacs is running
|
|
|
432 ('x is the only current possibility) */
|
|
|
433 Lisp_Object Vinitial_window_system;
|
|
|
434
|
|
|
435 Lisp_Object Vglobal_mode_string;
|
|
|
436
|
|
195
|
437 /* The number of lines scroll a window by when point leaves the window; if
|
|
0
|
438 it is <=0 then point is centered in the window */
|
|
|
439 int scroll_step;
|
|
|
440
|
|
195
|
441 /* Scroll up to this many lines, to bring point back on screen. */
|
|
|
442 int scroll_conservatively;
|
|
|
443
|
|
0
|
444 /* Marker for where to display an arrow on top of the buffer text. */
|
|
|
445 Lisp_Object Voverlay_arrow_position;
|
|
|
446 /* String to display for the arrow. */
|
|
|
447 Lisp_Object Voverlay_arrow_string;
|
|
|
448
|
|
|
449 Lisp_Object Vwindow_size_change_functions;
|
|
398
|
450 Lisp_Object Vwindow_scroll_functions;
|
|
0
|
451 Lisp_Object Qredisplay_end_trigger_functions, Vredisplay_end_trigger_functions;
|
|
|
452
|
|
406
|
453 Lisp_Object Qbuffer_list_changed_hook, Vbuffer_list_changed_hook;
|
|
|
454
|
|
|
455
|
|
0
|
456 #define INHIBIT_REDISPLAY_HOOKS /* #### Until we've thought about
|
|
|
457 this more. */
|
|
|
458 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
459 /* #### Chuck says: I think this needs more thought.
|
|
|
460 Think about this for 19.14. */
|
|
|
461 Lisp_Object Vpre_redisplay_hook, Vpost_redisplay_hook;
|
|
|
462 Lisp_Object Qpre_redisplay_hook, Qpost_redisplay_hook;
|
|
183
|
463 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
464
|
|
398
|
465 static int last_display_warning_tick, display_warning_tick;
|
|
0
|
466 Lisp_Object Qdisplay_warning_buffer;
|
|
|
467 int inhibit_warning_display;
|
|
|
468
|
|
|
469 Lisp_Object Vleft_margin_width, Vright_margin_width;
|
|
|
470 Lisp_Object Vminimum_line_ascent, Vminimum_line_descent;
|
|
|
471 Lisp_Object Vuse_left_overflow, Vuse_right_overflow;
|
|
|
472 Lisp_Object Vtext_cursor_visible_p;
|
|
|
473
|
|
72
|
474 int column_number_start_at_one;
|
|
398
|
475
|
|
404
|
476 Lisp_Object Qtop_bottom;
|
|
|
477
|
|
398
|
478 #define WINDOW_SCROLLED(w) \
|
|
|
479 (w->hscroll > 0 || w->left_xoffset)
|
|
|
480
|
|
0
|
481
|
|
|
482 /***************************************************************************/
|
|
|
483 /* */
|
|
|
484 /* low-level interfaces onto device routines */
|
|
|
485 /* */
|
|
|
486 /***************************************************************************/
|
|
|
487
|
|
|
488 static int
|
|
|
489 redisplay_text_width_emchar_string (struct window *w, int findex,
|
|
|
490 Emchar *str, Charcount len)
|
|
|
491 {
|
|
|
492 unsigned char charsets[NUM_LEADING_BYTES];
|
|
272
|
493 Lisp_Object window;
|
|
0
|
494
|
|
|
495 find_charsets_in_emchar_string (charsets, str, len);
|
|
|
496 XSETWINDOW (window, w);
|
|
|
497 ensure_face_cachel_complete (WINDOW_FACE_CACHEL (w, findex), window,
|
|
|
498 charsets);
|
|
|
499 return DEVMETH (XDEVICE (FRAME_DEVICE (XFRAME (WINDOW_FRAME (w)))),
|
|
251
|
500 text_width, (XFRAME (WINDOW_FRAME (w)),
|
|
|
501 WINDOW_FACE_CACHEL (w, findex), str, len));
|
|
0
|
502 }
|
|
|
503
|
|
185
|
504 static Emchar_dynarr *rtw_emchar_dynarr;
|
|
0
|
505
|
|
|
506 int
|
|
|
507 redisplay_text_width_string (struct window *w, int findex,
|
|
|
508 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
509 Bytecount offset, Bytecount len)
|
|
|
510 {
|
|
|
511 if (!rtw_emchar_dynarr)
|
|
|
512 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
513 Dynarr_reset (rtw_emchar_dynarr);
|
|
183
|
514
|
|
0
|
515 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
516 if (STRINGP (reloc))
|
|
16
|
517 nonreloc = XSTRING_DATA (reloc);
|
|
0
|
518 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
519 return redisplay_text_width_emchar_string
|
|
|
520 (w, findex, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
|
521 Dynarr_length (rtw_emchar_dynarr));
|
|
|
522 }
|
|
|
523
|
|
|
524 int
|
|
|
525 redisplay_frame_text_width_string (struct frame *f, Lisp_Object face,
|
|
|
526 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
527 Bytecount offset, Bytecount len)
|
|
|
528 {
|
|
|
529 unsigned char charsets[NUM_LEADING_BYTES];
|
|
272
|
530 Lisp_Object frame;
|
|
0
|
531 struct face_cachel cachel;
|
|
|
532
|
|
|
533 if (!rtw_emchar_dynarr)
|
|
|
534 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
535 Dynarr_reset (rtw_emchar_dynarr);
|
|
|
536
|
|
|
537 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
538 if (STRINGP (reloc))
|
|
16
|
539 nonreloc = XSTRING_DATA (reloc);
|
|
0
|
540 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
541 find_charsets_in_bufbyte_string (charsets, nonreloc, len);
|
|
|
542 reset_face_cachel (&cachel);
|
|
|
543 cachel.face = face;
|
|
|
544 XSETFRAME (frame, f);
|
|
|
545 ensure_face_cachel_complete (&cachel, frame, charsets);
|
|
|
546 return DEVMETH (XDEVICE (FRAME_DEVICE (f)),
|
|
251
|
547 text_width, (f, &cachel, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
0
|
548 Dynarr_length (rtw_emchar_dynarr)));
|
|
|
549 }
|
|
|
550
|
|
|
551 /* Return the display block from DL of the given TYPE. A display line
|
|
|
552 can have only one display block of each possible type. If DL does
|
|
|
553 not have a block of type TYPE, one will be created and added to DL. */
|
|
|
554
|
|
|
555 struct display_block *
|
|
|
556 get_display_block_from_line (struct display_line *dl, enum display_type type)
|
|
|
557 {
|
|
|
558 int elt;
|
|
|
559 struct display_block db;
|
|
|
560
|
|
|
561 /* Check if this display line already has a block of the desired type and
|
|
|
562 if so, return it. */
|
|
|
563 if (dl->display_blocks)
|
|
|
564 {
|
|
|
565 for (elt = 0; elt < Dynarr_length (dl->display_blocks); elt++)
|
|
|
566 {
|
|
|
567 if (Dynarr_at (dl->display_blocks, elt).type == type)
|
|
173
|
568 return Dynarr_atp (dl->display_blocks, elt);
|
|
0
|
569 }
|
|
|
570
|
|
|
571 /* There isn't an active block of the desired type, but there
|
|
|
572 might still be allocated blocks we need to reuse. */
|
|
|
573 if (elt < Dynarr_largest (dl->display_blocks))
|
|
|
574 {
|
|
|
575 struct display_block *dbp = Dynarr_atp (dl->display_blocks, elt);
|
|
|
576
|
|
|
577 /* 'add' the block to the list */
|
|
|
578 Dynarr_increment (dl->display_blocks);
|
|
|
579
|
|
|
580 /* initialize and return */
|
|
|
581 dbp->type = type;
|
|
|
582 return dbp;
|
|
|
583 }
|
|
|
584 }
|
|
|
585 else
|
|
|
586 {
|
|
|
587 /* This line doesn't have any display blocks, so initialize the display
|
|
|
588 bock array. */
|
|
185
|
589 dl->display_blocks = Dynarr_new (display_block);
|
|
0
|
590 }
|
|
|
591
|
|
|
592 /* The line doesn't have a block of the desired type so go ahead and create
|
|
|
593 one and add it to the line. */
|
|
272
|
594 xzero (db);
|
|
0
|
595 db.type = type;
|
|
185
|
596 db.runes = Dynarr_new (rune);
|
|
0
|
597 Dynarr_add (dl->display_blocks, db);
|
|
|
598
|
|
|
599 /* Return the newly added display block. */
|
|
|
600 elt = Dynarr_length (dl->display_blocks) - 1;
|
|
|
601
|
|
|
602 return Dynarr_atp (dl->display_blocks, elt);
|
|
|
603 }
|
|
|
604
|
|
|
605 static int
|
|
|
606 tab_char_width (struct window *w)
|
|
|
607 {
|
|
|
608 struct buffer *b = XBUFFER (w->buffer);
|
|
|
609 int char_tab_width = XINT (b->tab_width);
|
|
|
610
|
|
|
611 if (char_tab_width <= 0 || char_tab_width > 1000) char_tab_width = 8;
|
|
|
612
|
|
|
613 return char_tab_width;
|
|
|
614 }
|
|
|
615
|
|
|
616 static int
|
|
|
617 space_width (struct window *w)
|
|
|
618 {
|
|
|
619 /* While tabs are traditional composed of spaces, for variable-width
|
|
|
620 fonts the space character tends to give too narrow a value. So
|
|
|
621 we use 'n' instead. Except that we don't. We use the default
|
|
|
622 character width for the default face. If this is actually
|
|
|
623 defined by the font then it is probably the best thing to
|
|
|
624 actually use. If it isn't, we have assumed it is 'n' and have
|
|
|
625 already calculated its width. Thus we can avoid a call to
|
|
|
626 XTextWidth on X frames by just querying the default width. */
|
|
|
627 return XFONT_INSTANCE
|
|
|
628 (WINDOW_FACE_CACHEL_FONT (w, DEFAULT_INDEX, Vcharset_ascii))->width;
|
|
|
629 }
|
|
|
630
|
|
|
631 static int
|
|
|
632 tab_pix_width (struct window *w)
|
|
|
633 {
|
|
173
|
634 return space_width (w) * tab_char_width (w);
|
|
0
|
635 }
|
|
|
636
|
|
|
637 /* Given a pixel position in a window, return the pixel location of
|
|
|
638 the next tabstop. Tabs are calculated from the left window edge in
|
|
|
639 terms of spaces displayed in the default face. Formerly the space
|
|
|
640 width was determined using the currently active face. That method
|
|
|
641 leads to tabstops which do not line up. */
|
|
|
642
|
|
|
643 static int
|
|
|
644 next_tab_position (struct window *w, int start_pixpos, int left_pixpos)
|
|
|
645 {
|
|
|
646 int n_pos = left_pixpos;
|
|
|
647 int pix_tab_width = tab_pix_width (w);
|
|
|
648
|
|
|
649 /* Adjust n_pos for any hscrolling which has happened. */
|
|
398
|
650 if (WINDOW_SCROLLED (w))
|
|
|
651 n_pos -= space_width (w) * (w->hscroll - 1) + w->left_xoffset;
|
|
0
|
652
|
|
|
653 while (n_pos <= start_pixpos)
|
|
|
654 n_pos += pix_tab_width;
|
|
|
655
|
|
|
656 return n_pos;
|
|
|
657 }
|
|
|
658
|
|
|
659 /* For the given window, calculate the outside and margin boundaries for a
|
|
|
660 display line. The whitespace boundaries must be calculated by the text
|
|
|
661 layout routines. */
|
|
|
662
|
|
|
663 layout_bounds
|
|
|
664 calculate_display_line_boundaries (struct window *w, int modeline)
|
|
|
665 {
|
|
|
666 layout_bounds bounds;
|
|
|
667
|
|
|
668 /* Set the outermost boundaries which are the boundaries of the
|
|
|
669 window itself minus the gutters (and minus the scrollbars if this
|
|
|
670 is for the modeline). */
|
|
|
671 if (!modeline)
|
|
|
672 {
|
|
|
673 bounds.left_out = WINDOW_TEXT_LEFT (w);
|
|
|
674 bounds.right_out = WINDOW_TEXT_RIGHT (w);
|
|
|
675 }
|
|
|
676 else
|
|
|
677 {
|
|
|
678 bounds.left_out = WINDOW_MODELINE_LEFT (w);
|
|
|
679 bounds.right_out = WINDOW_MODELINE_RIGHT (w);
|
|
|
680 }
|
|
|
681
|
|
|
682 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
683 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
684 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
685
|
|
|
686 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
687 depend on the contents of the line being displayed. */
|
|
|
688 bounds.left_white = bounds.left_in;
|
|
|
689 bounds.right_white = bounds.right_in;
|
|
|
690
|
|
|
691 return bounds;
|
|
|
692 }
|
|
|
693
|
|
|
694 /* Given a display line and a starting position, ensure that the
|
|
|
695 contents of the display line accurately represent the visual
|
|
|
696 representation of the buffer contents starting from the given
|
|
|
697 position when displayed in the given window. The display line ends
|
|
|
698 when the contents of the line reach the right boundary of the given
|
|
|
699 window. */
|
|
|
700
|
|
|
701 static Bufpos
|
|
|
702 generate_display_line (struct window *w, struct display_line *dl, int bounds,
|
|
398
|
703 Bufpos start_pos, prop_block_dynarr **prop,
|
|
384
|
704 int type)
|
|
0
|
705 {
|
|
|
706 Bufpos ret_bufpos;
|
|
|
707 int overlay_width;
|
|
|
708 struct buffer *b = XBUFFER (WINDOW_BUFFER (w));
|
|
|
709
|
|
|
710 /* If our caller hasn't already set the boundaries, then do so now. */
|
|
|
711 if (!bounds)
|
|
|
712 dl->bounds = calculate_display_line_boundaries (w, 0);
|
|
|
713
|
|
|
714 /* Reset what this line is using. */
|
|
|
715 if (dl->display_blocks)
|
|
|
716 Dynarr_reset (dl->display_blocks);
|
|
|
717 if (dl->left_glyphs)
|
|
|
718 {
|
|
|
719 Dynarr_free (dl->left_glyphs);
|
|
|
720 dl->left_glyphs = 0;
|
|
|
721 }
|
|
|
722 if (dl->right_glyphs)
|
|
|
723 {
|
|
|
724 Dynarr_free (dl->right_glyphs);
|
|
|
725 dl->right_glyphs = 0;
|
|
|
726 }
|
|
|
727
|
|
|
728 /* We aren't generating a modeline at the moment. */
|
|
|
729 dl->modeline = 0;
|
|
|
730
|
|
|
731 /* Create a display block for the text region of the line. */
|
|
|
732 {
|
|
|
733 /* #### urk urk urk!!! Chuck fix this shit! */
|
|
|
734 Bytind hacked_up_bytind =
|
|
|
735 create_text_block (w, dl, bufpos_to_bytind (b, start_pos),
|
|
398
|
736 prop, type);
|
|
0
|
737 if (hacked_up_bytind > BI_BUF_ZV (b))
|
|
|
738 ret_bufpos = BUF_ZV (b) + 1;
|
|
|
739 else
|
|
|
740 ret_bufpos = bytind_to_bufpos (b, hacked_up_bytind);
|
|
|
741 }
|
|
|
742 dl->bufpos = start_pos;
|
|
|
743 if (dl->end_bufpos < dl->bufpos)
|
|
|
744 dl->end_bufpos = dl->bufpos;
|
|
|
745
|
|
|
746 if (MARKERP (Voverlay_arrow_position)
|
|
|
747 && EQ (w->buffer, Fmarker_buffer (Voverlay_arrow_position))
|
|
|
748 && start_pos == marker_position (Voverlay_arrow_position)
|
|
|
749 && (STRINGP (Voverlay_arrow_string)
|
|
|
750 || GLYPHP (Voverlay_arrow_string)))
|
|
|
751 {
|
|
|
752 overlay_width = create_overlay_glyph_block (w, dl);
|
|
|
753 }
|
|
|
754 else
|
|
|
755 overlay_width = 0;
|
|
|
756
|
|
|
757 /* If there are left glyphs associated with any character in the
|
|
|
758 text block, then create a display block to handle them. */
|
|
|
759 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
760 create_left_glyph_block (w, dl, overlay_width);
|
|
|
761
|
|
|
762 /* If there are right glyphs associated with any character in the
|
|
|
763 text block, then create a display block to handle them. */
|
|
|
764 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
765 create_right_glyph_block (w, dl);
|
|
|
766
|
|
|
767 /* In the future additional types of display blocks may be generated
|
|
|
768 here. */
|
|
|
769
|
|
|
770 w->last_redisplay_pos = ret_bufpos;
|
|
|
771
|
|
|
772 return ret_bufpos;
|
|
|
773 }
|
|
|
774
|
|
|
775 /* Adds an hscroll glyph to a display block. If this is called, then
|
|
|
776 the block had better be empty.
|
|
|
777
|
|
|
778 Yes, there are multiple places where this function is called but
|
|
|
779 that is the way it has to be. Each calling function has to deal
|
|
|
780 with bi_start_col_enabled a little differently depending on the
|
|
|
781 object being worked with. */
|
|
|
782
|
|
|
783 static prop_block_dynarr *
|
|
|
784 add_hscroll_rune (pos_data *data)
|
|
|
785 {
|
|
|
786 struct glyph_block gb;
|
|
|
787 prop_block_dynarr *retval;
|
|
|
788 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
789 unsigned int old_cursor_type = data->cursor_type;
|
|
|
790 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
791
|
|
|
792 if (data->cursor_type == CURSOR_ON
|
|
|
793 && data->bi_cursor_bufpos >= data->bi_start_col_enabled
|
|
|
794 && data->bi_cursor_bufpos <= data->bi_bufpos)
|
|
|
795 {
|
|
|
796 data->bi_cursor_bufpos = data->bi_start_col_enabled;
|
|
|
797 }
|
|
|
798 else
|
|
|
799 {
|
|
|
800 data->cursor_type = NO_CURSOR;
|
|
|
801 }
|
|
|
802
|
|
|
803 data->bi_endpos = data->bi_bufpos;
|
|
|
804 data->bi_bufpos = data->bi_start_col_enabled;
|
|
|
805
|
|
|
806 gb.extent = Qnil;
|
|
|
807 gb.glyph = Vhscroll_glyph;
|
|
217
|
808 {
|
|
|
809 int oldpixpos = data->pixpos;
|
|
406
|
810 retval = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0,
|
|
217
|
811 GLYPH_CACHEL (XWINDOW (data->window),
|
|
|
812 HSCROLL_GLYPH_INDEX));
|
|
|
813 data->hscroll_glyph_width_adjust =
|
|
|
814 data->pixpos - oldpixpos - space_width (XWINDOW (data->window));
|
|
|
815 }
|
|
0
|
816 data->bi_endpos = 0;
|
|
|
817 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
818 data->cursor_type = old_cursor_type;
|
|
|
819 data->bi_bufpos = bi_old_bufpos;
|
|
|
820
|
|
|
821 data->bi_start_col_enabled = 0;
|
|
|
822 return retval;
|
|
|
823 }
|
|
|
824
|
|
|
825 /* Adds a character rune to a display block. If there is not enough
|
|
|
826 room to fit the rune on the display block (as determined by the
|
|
|
827 MAX_PIXPOS) then it adds nothing and returns ADD_FAILED. */
|
|
|
828
|
|
|
829 static prop_block_dynarr *
|
|
|
830 add_emchar_rune (pos_data *data)
|
|
|
831 {
|
|
|
832 struct rune rb, *crb;
|
|
|
833 int width, local;
|
|
|
834
|
|
|
835 if (data->start_col)
|
|
|
836 {
|
|
|
837 data->start_col--;
|
|
|
838
|
|
|
839 if (data->start_col)
|
|
|
840 return NULL;
|
|
|
841 }
|
|
|
842
|
|
|
843 if (data->bi_start_col_enabled)
|
|
|
844 {
|
|
|
845 return add_hscroll_rune (data);
|
|
|
846 }
|
|
|
847
|
|
|
848 if (data->ch == '\n')
|
|
|
849 {
|
|
|
850 data->font_is_bogus = 0;
|
|
|
851 /* Cheesy end-of-line pseudo-character. */
|
|
|
852 width = data->blank_width;
|
|
|
853 }
|
|
|
854 else
|
|
|
855 {
|
|
|
856 Lisp_Object charset = CHAR_CHARSET (data->ch);
|
|
94
|
857 if (!EQ (charset, data->last_charset) ||
|
|
|
858 data->findex != data->last_findex)
|
|
0
|
859 {
|
|
|
860 /* OK, we need to do things the hard way. */
|
|
|
861 struct window *w = XWINDOW (data->window);
|
|
183
|
862 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, data->findex);
|
|
0
|
863 Lisp_Object font_instance =
|
|
|
864 ensure_face_cachel_contains_charset (cachel, data->window,
|
|
|
865 charset);
|
|
398
|
866 Lisp_Font_Instance *fi;
|
|
0
|
867
|
|
|
868 if (EQ (font_instance, Vthe_null_font_instance))
|
|
|
869 {
|
|
|
870 font_instance = FACE_CACHEL_FONT (cachel, Vcharset_ascii);
|
|
|
871 data->font_is_bogus = 1;
|
|
|
872 }
|
|
|
873 else
|
|
|
874 data->font_is_bogus = 0;
|
|
|
875
|
|
|
876 fi = XFONT_INSTANCE (font_instance);
|
|
|
877 if (!fi->proportional_p)
|
|
|
878 /* sweetness and light. */
|
|
|
879 data->last_char_width = fi->width;
|
|
|
880 else
|
|
|
881 data->last_char_width = -1;
|
|
2
|
882 data->new_ascent = max (data->new_ascent, (int) fi->ascent);
|
|
0
|
883 data->new_descent = max (data->new_descent, (int) fi->descent);
|
|
94
|
884 data->last_charset = charset;
|
|
|
885 data->last_findex = data->findex;
|
|
0
|
886 }
|
|
|
887
|
|
|
888 width = data->last_char_width;
|
|
|
889 if (width < 0)
|
|
|
890 {
|
|
|
891 /* bummer. Proportional fonts. */
|
|
|
892 width = redisplay_text_width_emchar_string (XWINDOW (data->window),
|
|
|
893 data->findex,
|
|
|
894 &data->ch, 1);
|
|
|
895 }
|
|
|
896 }
|
|
|
897
|
|
|
898 if (data->max_pixpos != -1 && (data->pixpos + width > data->max_pixpos))
|
|
|
899 {
|
|
|
900 return ADD_FAILED;
|
|
|
901 }
|
|
|
902
|
|
|
903 if (Dynarr_length (data->db->runes) < Dynarr_largest (data->db->runes))
|
|
|
904 {
|
|
|
905 crb = Dynarr_atp (data->db->runes, Dynarr_length (data->db->runes));
|
|
|
906 local = 0;
|
|
|
907 }
|
|
|
908 else
|
|
|
909 {
|
|
|
910 crb = &rb;
|
|
|
911 local = 1;
|
|
|
912 }
|
|
|
913
|
|
|
914 crb->findex = data->findex;
|
|
|
915 crb->xpos = data->pixpos;
|
|
|
916 crb->width = width;
|
|
|
917 if (data->bi_bufpos)
|
|
398
|
918 {
|
|
|
919 if (NILP (data->string))
|
|
|
920 crb->bufpos =
|
|
|
921 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
922 data->bi_bufpos);
|
|
|
923 else
|
|
|
924 crb->bufpos =
|
|
|
925 bytecount_to_charcount (XSTRING_DATA (data->string), data->bi_bufpos);
|
|
|
926 }
|
|
0
|
927 else if (data->is_modeline)
|
|
|
928 crb->bufpos = data->modeline_charpos;
|
|
|
929 else
|
|
406
|
930 /* Text but not in buffer */
|
|
0
|
931 crb->bufpos = 0;
|
|
|
932 crb->type = RUNE_CHAR;
|
|
|
933 crb->object.chr.ch = data->font_is_bogus ? '~' : data->ch;
|
|
|
934 crb->endpos = 0;
|
|
|
935
|
|
|
936 if (data->cursor_type == CURSOR_ON)
|
|
|
937 {
|
|
|
938 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
939 {
|
|
|
940 crb->cursor_type = CURSOR_ON;
|
|
|
941 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
942 }
|
|
|
943 else
|
|
|
944 crb->cursor_type = CURSOR_OFF;
|
|
|
945 }
|
|
|
946 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
947 {
|
|
|
948 crb->cursor_type = CURSOR_ON;
|
|
|
949 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
950 data->cursor_type = NO_CURSOR;
|
|
|
951 }
|
|
|
952 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
953 crb->cursor_type = IGNORE_CURSOR;
|
|
|
954 else
|
|
|
955 crb->cursor_type = CURSOR_OFF;
|
|
|
956
|
|
|
957 if (local)
|
|
|
958 Dynarr_add (data->db->runes, *crb);
|
|
|
959 else
|
|
|
960 Dynarr_increment (data->db->runes);
|
|
|
961
|
|
|
962 data->pixpos += width;
|
|
|
963
|
|
|
964 return NULL;
|
|
|
965 }
|
|
|
966
|
|
|
967 /* Given a string C_STRING of length C_LENGTH, call add_emchar_rune
|
|
|
968 for each character in the string. Propagate any left-over data
|
|
|
969 unless NO_PROP is non-zero. */
|
|
|
970
|
|
|
971 static prop_block_dynarr *
|
|
|
972 add_bufbyte_string_runes (pos_data *data, Bufbyte *c_string,
|
|
|
973 Bytecount c_length, int no_prop)
|
|
|
974 {
|
|
|
975 Bufbyte *pos, *end = c_string + c_length;
|
|
|
976 prop_block_dynarr *prop;
|
|
|
977
|
|
|
978 /* #### This function is too simplistic. It needs to do the same
|
|
|
979 sort of character interpretation (display-table lookup,
|
|
|
980 ctl-arrow checking), etc. that create_text_block() does.
|
|
|
981 The functionality to do this in that routine needs to be
|
|
|
982 modularized. */
|
|
183
|
983
|
|
0
|
984 for (pos = c_string; pos < end;)
|
|
|
985 {
|
|
|
986 data->ch = charptr_emchar (pos);
|
|
|
987
|
|
|
988 prop = add_emchar_rune (data);
|
|
|
989
|
|
|
990 if (prop)
|
|
|
991 {
|
|
|
992 if (no_prop)
|
|
|
993 return ADD_FAILED;
|
|
|
994 else
|
|
|
995 {
|
|
|
996 struct prop_block pb;
|
|
|
997 Bytecount len = end - pos;
|
|
185
|
998 prop = Dynarr_new (prop_block);
|
|
0
|
999
|
|
|
1000 pb.type = PROP_STRING;
|
|
185
|
1001 pb.data.p_string.str = xnew_array (Bufbyte, len);
|
|
0
|
1002 strncpy ((char *) pb.data.p_string.str, (char *) pos, len);
|
|
|
1003 pb.data.p_string.len = len;
|
|
|
1004
|
|
|
1005 Dynarr_add (prop, pb);
|
|
|
1006 return prop;
|
|
|
1007 }
|
|
|
1008 }
|
|
|
1009 INC_CHARPTR (pos);
|
|
|
1010 assert (pos <= end);
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 return NULL;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 /* Add a single rune of the specified width. The area covered by this
|
|
|
1017 rune will be displayed in the foreground color of the associated
|
|
|
1018 face. */
|
|
|
1019
|
|
|
1020 static prop_block_dynarr *
|
|
|
1021 add_blank_rune (pos_data *data, struct window *w, int char_tab_width)
|
|
|
1022 {
|
|
|
1023 struct rune rb;
|
|
|
1024
|
|
|
1025 /* If data->start_col is not 0 then this call to add_blank_rune must have
|
|
|
1026 been to add it as a tab. */
|
|
|
1027 if (data->start_col)
|
|
|
1028 {
|
|
|
1029 /* assert (w != NULL) */
|
|
|
1030 prop_block_dynarr *retval;
|
|
|
1031
|
|
|
1032 /* If we have still not fully scrolled horizontally, subtract
|
|
|
1033 the width of this tab and return. */
|
|
|
1034 if (char_tab_width < data->start_col)
|
|
|
1035 {
|
|
|
1036 data->start_col -= char_tab_width;
|
|
|
1037 return NULL;
|
|
|
1038 }
|
|
|
1039 else if (char_tab_width == data->start_col)
|
|
|
1040 data->blank_width = 0;
|
|
|
1041 else
|
|
|
1042 {
|
|
|
1043 int spcwid = space_width (w);
|
|
|
1044
|
|
|
1045 if (spcwid >= data->blank_width)
|
|
|
1046 data->blank_width = 0;
|
|
|
1047 else
|
|
|
1048 data->blank_width -= spcwid;
|
|
|
1049 }
|
|
183
|
1050
|
|
0
|
1051 data->start_col = 0;
|
|
|
1052 retval = add_hscroll_rune (data);
|
|
|
1053
|
|
|
1054 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1055 if (retval != NULL || !data->blank_width)
|
|
|
1056 return retval;
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 /* Blank runes are always calculated to fit. */
|
|
|
1060 assert (data->pixpos + data->blank_width <= data->max_pixpos);
|
|
|
1061
|
|
|
1062 rb.findex = data->findex;
|
|
|
1063 rb.xpos = data->pixpos;
|
|
|
1064 rb.width = data->blank_width;
|
|
|
1065 if (data->bi_bufpos)
|
|
243
|
1066 rb.bufpos =
|
|
|
1067 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
1068 data->bi_bufpos);
|
|
0
|
1069 else
|
|
|
1070 /* #### and this is really correct too? */
|
|
|
1071 rb.bufpos = 0;
|
|
|
1072 rb.endpos = 0;
|
|
|
1073 rb.type = RUNE_BLANK;
|
|
|
1074
|
|
|
1075 if (data->cursor_type == CURSOR_ON)
|
|
|
1076 {
|
|
|
1077 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1078 {
|
|
|
1079 rb.cursor_type = CURSOR_ON;
|
|
|
1080 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1081 }
|
|
|
1082 else
|
|
|
1083 rb.cursor_type = CURSOR_OFF;
|
|
|
1084 }
|
|
|
1085 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1086 {
|
|
|
1087 rb.cursor_type = CURSOR_ON;
|
|
|
1088 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1089 data->cursor_type = NO_CURSOR;
|
|
|
1090 }
|
|
|
1091 else
|
|
|
1092 rb.cursor_type = CURSOR_OFF;
|
|
|
1093
|
|
|
1094 Dynarr_add (data->db->runes, rb);
|
|
|
1095 data->pixpos += data->blank_width;
|
|
|
1096
|
|
|
1097 return NULL;
|
|
|
1098 }
|
|
|
1099
|
|
|
1100 /* Add runes representing a character in octal. */
|
|
|
1101
|
|
|
1102 #define ADD_NEXT_OCTAL_RUNE_CHAR do \
|
|
|
1103 { \
|
|
|
1104 if (add_failed || (add_failed = add_emchar_rune (data))) \
|
|
|
1105 { \
|
|
|
1106 struct prop_block pb; \
|
|
|
1107 if (!prop) \
|
|
185
|
1108 prop = Dynarr_new (prop_block); \
|
|
0
|
1109 \
|
|
|
1110 pb.type = PROP_CHAR; \
|
|
|
1111 pb.data.p_char.ch = data->ch; \
|
|
|
1112 pb.data.p_char.cursor_type = data->cursor_type; \
|
|
|
1113 Dynarr_add (prop, pb); \
|
|
|
1114 } \
|
|
|
1115 } while (0)
|
|
|
1116
|
|
|
1117 static prop_block_dynarr *
|
|
|
1118 add_octal_runes (pos_data *data)
|
|
|
1119 {
|
|
|
1120 prop_block_dynarr *prop, *add_failed;
|
|
|
1121 Emchar orig_char = data->ch;
|
|
|
1122 unsigned int orig_cursor_type = data->cursor_type;
|
|
|
1123
|
|
|
1124 /* Initialize */
|
|
|
1125 prop = NULL;
|
|
|
1126 add_failed = NULL;
|
|
|
1127
|
|
|
1128 if (data->start_col)
|
|
|
1129 data->start_col--;
|
|
|
1130
|
|
|
1131 if (!data->start_col)
|
|
|
1132 {
|
|
|
1133 if (data->bi_start_col_enabled)
|
|
|
1134 {
|
|
|
1135 add_failed = add_hscroll_rune (data);
|
|
|
1136 }
|
|
|
1137 else
|
|
|
1138 {
|
|
|
1139 struct glyph_block gb;
|
|
|
1140 struct window *w = XWINDOW (data->window);
|
|
|
1141
|
|
|
1142 gb.extent = Qnil;
|
|
|
1143 gb.glyph = Voctal_escape_glyph;
|
|
|
1144 add_failed =
|
|
|
1145 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1146 GLYPH_CACHEL (w, OCT_ESC_GLYPH_INDEX));
|
|
|
1147 }
|
|
|
1148 }
|
|
|
1149
|
|
|
1150 /* We only propagate information if the glyph was partially
|
|
|
1151 added. */
|
|
|
1152 if (add_failed)
|
|
|
1153 return add_failed;
|
|
|
1154
|
|
|
1155 data->cursor_type = IGNORE_CURSOR;
|
|
|
1156
|
|
|
1157 if (data->ch >= 0x100)
|
|
|
1158 {
|
|
|
1159 /* If the character is an extended Mule character, it could have
|
|
|
1160 up to 19 bits. For the moment, we treat it as a seven-digit
|
|
|
1161 octal number. This is not that pretty, but whatever. */
|
|
|
1162 data->ch = (7 & (orig_char >> 18)) + '0';
|
|
|
1163 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1164
|
|
|
1165 data->ch = (7 & (orig_char >> 15)) + '0';
|
|
|
1166 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1167
|
|
|
1168 data->ch = (7 & (orig_char >> 12)) + '0';
|
|
|
1169 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1170
|
|
|
1171 data->ch = (7 & (orig_char >> 9)) + '0';
|
|
|
1172 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 data->ch = (7 & (orig_char >> 6)) + '0';
|
|
|
1176 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1177
|
|
|
1178 data->ch = (7 & (orig_char >> 3)) + '0';
|
|
|
1179 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1180
|
|
|
1181 data->ch = (7 & orig_char) + '0';
|
|
|
1182 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1183
|
|
|
1184 data->cursor_type = orig_cursor_type;
|
|
|
1185 return prop;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 #undef ADD_NEXT_OCTAL_RUNE_CHAR
|
|
|
1189
|
|
|
1190 /* Add runes representing a control character to a display block. */
|
|
|
1191
|
|
|
1192 static prop_block_dynarr *
|
|
|
1193 add_control_char_runes (pos_data *data, struct buffer *b)
|
|
|
1194 {
|
|
|
1195 if (!NILP (b->ctl_arrow))
|
|
|
1196 {
|
|
|
1197 prop_block_dynarr *prop;
|
|
|
1198 Emchar orig_char = data->ch;
|
|
|
1199 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1200
|
|
|
1201 /* Initialize */
|
|
|
1202 prop = NULL;
|
|
|
1203
|
|
|
1204 if (data->start_col)
|
|
|
1205 data->start_col--;
|
|
|
1206
|
|
|
1207 if (!data->start_col)
|
|
|
1208 {
|
|
|
1209 if (data->bi_start_col_enabled)
|
|
|
1210 {
|
|
|
1211 prop_block_dynarr *retval;
|
|
|
1212
|
|
|
1213 retval = add_hscroll_rune (data);
|
|
|
1214 if (retval)
|
|
|
1215 return retval;
|
|
|
1216 }
|
|
|
1217 else
|
|
|
1218 {
|
|
|
1219 struct glyph_block gb;
|
|
|
1220 struct window *w = XWINDOW (data->window);
|
|
|
1221
|
|
|
1222 gb.extent = Qnil;
|
|
|
1223 gb.glyph = Vcontrol_arrow_glyph;
|
|
|
1224
|
|
|
1225 /* We only propagate information if the glyph was partially
|
|
|
1226 added. */
|
|
|
1227 if (add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1228 GLYPH_CACHEL (w, CONTROL_GLYPH_INDEX)))
|
|
|
1229 return ADD_FAILED;
|
|
|
1230 }
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 if (orig_char == 0177)
|
|
|
1234 data->ch = '?';
|
|
|
1235 else
|
|
|
1236 data->ch = orig_char ^ 0100;
|
|
|
1237 data->cursor_type = IGNORE_CURSOR;
|
|
|
1238
|
|
|
1239 if (add_emchar_rune (data))
|
|
|
1240 {
|
|
|
1241 struct prop_block pb;
|
|
|
1242 if (!prop)
|
|
185
|
1243 prop = Dynarr_new (prop_block);
|
|
0
|
1244
|
|
|
1245 pb.type = PROP_CHAR;
|
|
|
1246 pb.data.p_char.ch = data->ch;
|
|
|
1247 pb.data.p_char.cursor_type = data->cursor_type;
|
|
|
1248 Dynarr_add (prop, pb);
|
|
|
1249 }
|
|
|
1250
|
|
|
1251 data->cursor_type = old_cursor_type;
|
|
|
1252 return prop;
|
|
|
1253 }
|
|
|
1254 else
|
|
|
1255 {
|
|
|
1256 return add_octal_runes (data);
|
|
|
1257 }
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 static prop_block_dynarr *
|
|
384
|
1261 add_disp_table_entry_runes_1 (pos_data *data, Lisp_Object entry)
|
|
0
|
1262 {
|
|
|
1263 prop_block_dynarr *prop = NULL;
|
|
|
1264
|
|
384
|
1265 if (STRINGP (entry))
|
|
0
|
1266 {
|
|
|
1267 prop = add_bufbyte_string_runes (data,
|
|
16
|
1268 XSTRING_DATA (entry),
|
|
|
1269 XSTRING_LENGTH (entry),
|
|
0
|
1270 0);
|
|
|
1271 }
|
|
|
1272 else if (GLYPHP (entry))
|
|
|
1273 {
|
|
|
1274 if (data->start_col)
|
|
|
1275 data->start_col--;
|
|
|
1276
|
|
|
1277 if (!data->start_col && data->bi_start_col_enabled)
|
|
|
1278 {
|
|
|
1279 prop = add_hscroll_rune (data);
|
|
|
1280 }
|
|
|
1281 else
|
|
|
1282 {
|
|
|
1283 struct glyph_block gb;
|
|
|
1284
|
|
|
1285 gb.glyph = entry;
|
|
|
1286 gb.extent = Qnil;
|
|
|
1287 prop = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
1288 }
|
|
|
1289 }
|
|
|
1290 else if (CHAR_OR_CHAR_INTP (entry))
|
|
|
1291 {
|
|
|
1292 data->ch = XCHAR_OR_CHAR_INT (entry);
|
|
|
1293 prop = add_emchar_rune (data);
|
|
|
1294 }
|
|
384
|
1295 else if (CONSP (entry))
|
|
|
1296 {
|
|
|
1297 if (EQ (XCAR (entry), Qformat)
|
|
|
1298 && CONSP (XCDR (entry))
|
|
|
1299 && STRINGP (XCAR (XCDR (entry))))
|
|
|
1300 {
|
|
|
1301 Lisp_Object format = XCAR (XCDR (entry));
|
|
|
1302 Bytind len = XSTRING_LENGTH (format);
|
|
|
1303 Bufbyte *src = XSTRING_DATA (format), *end = src + len;
|
|
|
1304 Bufbyte *result = alloca_array (Bufbyte, len);
|
|
|
1305 Bufbyte *dst = result;
|
|
|
1306
|
|
|
1307 while (src < end)
|
|
|
1308 {
|
|
|
1309 Emchar c = charptr_emchar (src);
|
|
|
1310 INC_CHARPTR (src);
|
|
|
1311 if (c != '%' || src == end)
|
|
|
1312 dst += set_charptr_emchar (dst, c);
|
|
|
1313 else
|
|
|
1314 {
|
|
|
1315 c = charptr_emchar (src);
|
|
|
1316 INC_CHARPTR (src);
|
|
|
1317 switch (c)
|
|
|
1318 {
|
|
|
1319 /*case 'x':
|
|
|
1320 dst += long_to_string_base ((char *)dst, data->ch, 16);
|
|
|
1321 break;*/
|
|
|
1322 case '%':
|
|
|
1323 dst += set_charptr_emchar (dst, '%');
|
|
|
1324 break;
|
|
|
1325 }
|
|
|
1326 }
|
|
|
1327 }
|
|
|
1328 prop = add_bufbyte_string_runes (data, result, dst - result, 0);
|
|
|
1329 }
|
|
|
1330 }
|
|
0
|
1331
|
|
|
1332 /* Else blow it off because someone added a bad entry and we don't
|
|
384
|
1333 have any safe way of signaling an error. */
|
|
|
1334 return prop;
|
|
|
1335 }
|
|
|
1336
|
|
|
1337 /* Given a display table entry, call the appropriate functions to
|
|
|
1338 display each element of the entry. */
|
|
|
1339
|
|
|
1340 static prop_block_dynarr *
|
|
|
1341 add_disp_table_entry_runes (pos_data *data, Lisp_Object entry)
|
|
|
1342 {
|
|
|
1343 prop_block_dynarr *prop = NULL;
|
|
|
1344 if (VECTORP (entry))
|
|
|
1345 {
|
|
398
|
1346 Lisp_Vector *de = XVECTOR (entry);
|
|
384
|
1347 EMACS_INT len = vector_length (de);
|
|
|
1348 int elt;
|
|
|
1349
|
|
|
1350 for (elt = 0; elt < len; elt++)
|
|
|
1351 {
|
|
|
1352 if (NILP (vector_data (de)[elt]))
|
|
|
1353 continue;
|
|
|
1354 else
|
|
|
1355 prop = add_disp_table_entry_runes_1 (data, vector_data (de)[elt]);
|
|
|
1356 /* Else blow it off because someone added a bad entry and we
|
|
|
1357 don't have any safe way of signaling an error. Hey, this
|
|
|
1358 comment sounds familiar. */
|
|
|
1359
|
|
|
1360 /* #### Still need to add any remaining elements to the
|
|
|
1361 propagation information. */
|
|
|
1362 if (prop)
|
|
|
1363 return prop;
|
|
|
1364 }
|
|
|
1365 }
|
|
|
1366 else
|
|
|
1367 prop = add_disp_table_entry_runes_1 (data, entry);
|
|
0
|
1368 return prop;
|
|
|
1369 }
|
|
|
1370
|
|
|
1371 /* Add runes which were propagated from the previous line. */
|
|
|
1372
|
|
|
1373 static prop_block_dynarr *
|
|
|
1374 add_propagation_runes (prop_block_dynarr **prop, pos_data *data)
|
|
|
1375 {
|
|
|
1376 /* #### Remember to handle start_col parameter of data when the rest of
|
|
|
1377 this is finished. */
|
|
|
1378 /* #### Chuck -- I've redone this function a bit. It looked like the
|
|
|
1379 case of not all the propagation blocks being added was not handled
|
|
|
1380 well. */
|
|
|
1381 /* #### Chuck -- I also think the double indirection of PROP is kind
|
|
|
1382 of bogus. A cleaner solution is just to check for
|
|
|
1383 Dynarr_length (prop) > 0. */
|
|
|
1384 /* #### This function also doesn't even pay attention to ADD_FAILED!
|
|
|
1385 This is seriously fucked! Seven ####'s in 130 lines -- is that a
|
|
|
1386 record? */
|
|
|
1387 int elt;
|
|
|
1388 prop_block_dynarr *add_failed;
|
|
|
1389 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
1390 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1391
|
|
|
1392 for (elt = 0; elt < Dynarr_length (*prop); elt++)
|
|
|
1393 {
|
|
|
1394 struct prop_block *pb = Dynarr_atp (*prop, elt);
|
|
|
1395
|
|
|
1396 switch (pb->type)
|
|
|
1397 {
|
|
|
1398 case PROP_CHAR:
|
|
|
1399 data->ch = pb->data.p_char.ch;
|
|
|
1400 data->bi_cursor_bufpos = pb->data.p_char.bi_cursor_bufpos;
|
|
|
1401 data->cursor_type = pb->data.p_char.cursor_type;
|
|
|
1402 add_failed = add_emchar_rune (data);
|
|
|
1403
|
|
|
1404 if (add_failed)
|
|
|
1405 goto oops_no_more_space;
|
|
|
1406 break;
|
|
|
1407 case PROP_STRING:
|
|
|
1408 if (pb->data.p_string.str)
|
|
|
1409 xfree (pb->data.p_string.str);
|
|
|
1410 /* #### bogus bogus -- this doesn't do anything!
|
|
|
1411 Should probably call add_bufbyte_string_runes(),
|
|
|
1412 once that function is fixed. */
|
|
|
1413 break;
|
|
|
1414 case PROP_MINIBUF_PROMPT:
|
|
|
1415 {
|
|
|
1416 face_index old_findex = data->findex;
|
|
|
1417 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
1418
|
|
|
1419 data->findex = DEFAULT_INDEX;
|
|
|
1420 data->bi_bufpos = 0;
|
|
|
1421 data->cursor_type = NO_CURSOR;
|
|
|
1422
|
|
|
1423 while (pb->data.p_string.len > 0)
|
|
|
1424 {
|
|
|
1425 data->ch = charptr_emchar (pb->data.p_string.str);
|
|
|
1426 add_failed = add_emchar_rune (data);
|
|
|
1427
|
|
|
1428 if (add_failed)
|
|
|
1429 {
|
|
|
1430 data->findex = old_findex;
|
|
|
1431 data->bi_bufpos = bi_old_bufpos;
|
|
|
1432 goto oops_no_more_space;
|
|
|
1433 }
|
|
|
1434 else
|
|
|
1435 {
|
|
|
1436 /* Complicated equivalent of ptr++, len-- */
|
|
|
1437 Bufbyte *oldpos = pb->data.p_string.str;
|
|
|
1438 INC_CHARPTR (pb->data.p_string.str);
|
|
|
1439 pb->data.p_string.len -= pb->data.p_string.str - oldpos;
|
|
|
1440 }
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 data->findex = old_findex;
|
|
|
1444 /* ##### FIXME FIXME FIXME -- Upon successful return from
|
|
|
1445 this function, data->bi_bufpos is automatically incremented.
|
|
|
1446 However, we don't want that to happen if we were adding
|
|
|
1447 the minibuffer prompt. */
|
|
|
1448 {
|
|
|
1449 struct buffer *buf =
|
|
|
1450 XBUFFER (WINDOW_BUFFER (XWINDOW (data->window)));
|
|
|
1451 /* #### Chuck fix this shit or I'm gonna scream! */
|
|
|
1452 if (bi_old_bufpos > BI_BUF_BEGV (buf))
|
|
|
1453 data->bi_bufpos = prev_bytind (buf, bi_old_bufpos);
|
|
|
1454 else
|
|
|
1455 /* #### is this correct? Does anyone know?
|
|
|
1456 Does anyone care? Is this a cheesy hack or what? */
|
|
|
1457 data->bi_bufpos = BI_BUF_BEGV (buf) - 1;
|
|
|
1458 }
|
|
|
1459 }
|
|
|
1460 break;
|
|
|
1461 case PROP_BLANK:
|
|
|
1462 {
|
|
|
1463 /* #### I think it's unnecessary and misleading to preserve
|
|
|
1464 the blank_width, as it implies that the value carries
|
|
|
1465 over from one rune to the next, which is wrong. */
|
|
|
1466 int old_width = data->blank_width;
|
|
|
1467 face_index old_findex = data->findex;
|
|
|
1468
|
|
|
1469 data->findex = pb->data.p_blank.findex;
|
|
|
1470 data->blank_width = pb->data.p_blank.width;
|
|
|
1471 data->bi_cursor_bufpos = 0;
|
|
|
1472 data->cursor_type = IGNORE_CURSOR;
|
|
|
1473
|
|
|
1474 if (data->pixpos + data->blank_width > data->max_pixpos)
|
|
|
1475 data->blank_width = data->max_pixpos - data->pixpos;
|
|
|
1476
|
|
|
1477 /* We pass a bogus value of char_tab_width. It shouldn't
|
|
|
1478 matter because unless something is really screwed up
|
|
|
1479 this call won't cause that arg to be used. */
|
|
|
1480 add_failed = add_blank_rune (data, XWINDOW (data->window), 0);
|
|
|
1481
|
|
|
1482 /* This can happen in the case where we have a tab which
|
|
|
1483 is wider than the window. */
|
|
|
1484 if (data->blank_width != pb->data.p_blank.width)
|
|
|
1485 {
|
|
|
1486 pb->data.p_blank.width -= data->blank_width;
|
|
|
1487 add_failed = ADD_FAILED;
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 data->findex = old_findex;
|
|
|
1491 data->blank_width = old_width;
|
|
|
1492
|
|
|
1493 if (add_failed)
|
|
|
1494 goto oops_no_more_space;
|
|
|
1495 }
|
|
|
1496 break;
|
|
|
1497 default:
|
|
|
1498 abort ();
|
|
|
1499 }
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 oops_no_more_space:
|
|
183
|
1503
|
|
0
|
1504 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
1505 data->cursor_type = old_cursor_type;
|
|
|
1506 if (elt < Dynarr_length (*prop))
|
|
|
1507 {
|
|
|
1508 Dynarr_delete_many (*prop, 0, elt);
|
|
|
1509 return *prop;
|
|
|
1510 }
|
|
|
1511 else
|
|
|
1512 {
|
|
|
1513 Dynarr_free (*prop);
|
|
|
1514 return NULL;
|
|
|
1515 }
|
|
|
1516 }
|
|
|
1517
|
|
|
1518 /* Add 'text layout glyphs at position POS_TYPE that are contained to
|
|
|
1519 the display block, but add all other types to the appropriate list
|
|
|
1520 of the display line. They will be added later by different
|
|
|
1521 routines. */
|
|
|
1522
|
|
|
1523 static prop_block_dynarr *
|
|
|
1524 add_glyph_rune (pos_data *data, struct glyph_block *gb, int pos_type,
|
|
|
1525 int allow_cursor, struct glyph_cachel *cachel)
|
|
|
1526 {
|
|
|
1527 struct window *w = XWINDOW (data->window);
|
|
|
1528
|
|
398
|
1529 /* If window faces changed, and glyph instance is text, then
|
|
|
1530 glyph sizes might have changed too */
|
|
|
1531 invalidate_glyph_geometry_maybe (gb->glyph, w);
|
|
|
1532
|
|
404
|
1533 /* This makes sure the glyph is in the cachels.
|
|
|
1534
|
|
|
1535 #### We do this to make sure the glyph is in the glyph cachels,
|
|
|
1536 so that the dirty flag can be reset after redisplay has
|
|
|
1537 finished. We should do this some other way, maybe by iterating
|
|
|
1538 over the window cache of subwindows. */
|
|
398
|
1539 get_glyph_cachel_index (w, gb->glyph);
|
|
|
1540
|
|
0
|
1541 /* A nil extent indicates a special glyph (ex. truncator). */
|
|
|
1542 if (NILP (gb->extent)
|
|
|
1543 || (pos_type == BEGIN_GLYPHS &&
|
|
|
1544 extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT)
|
|
|
1545 || (pos_type == END_GLYPHS &&
|
|
406
|
1546 extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT)
|
|
|
1547 || pos_type == LEFT_GLYPHS || pos_type == RIGHT_GLYPHS)
|
|
0
|
1548 {
|
|
|
1549 struct rune rb;
|
|
|
1550 int width;
|
|
|
1551 int xoffset = 0;
|
|
|
1552 int ascent, descent;
|
|
|
1553 Lisp_Object baseline;
|
|
|
1554 Lisp_Object face;
|
|
406
|
1555 Lisp_Object instance;
|
|
|
1556 face_index findex;
|
|
0
|
1557
|
|
|
1558 if (cachel)
|
|
|
1559 width = cachel->width;
|
|
|
1560 else
|
|
398
|
1561 width = glyph_width (gb->glyph, data->window);
|
|
0
|
1562
|
|
|
1563 if (!width)
|
|
|
1564 return NULL;
|
|
|
1565
|
|
398
|
1566 if (data->start_col || data->start_col_xoffset)
|
|
0
|
1567 {
|
|
|
1568 prop_block_dynarr *retval;
|
|
|
1569 int glyph_char_width = width / space_width (w);
|
|
|
1570
|
|
|
1571 /* If we still have not fully scrolled horizontally after
|
|
|
1572 taking into account the width of the glyph, subtract its
|
|
|
1573 width and return. */
|
|
|
1574 if (glyph_char_width < data->start_col)
|
|
|
1575 {
|
|
|
1576 data->start_col -= glyph_char_width;
|
|
|
1577 return NULL;
|
|
|
1578 }
|
|
|
1579 else if (glyph_char_width == data->start_col)
|
|
|
1580 width = 0;
|
|
|
1581 else
|
|
|
1582 {
|
|
|
1583 xoffset = space_width (w) * data->start_col;
|
|
|
1584 width -= xoffset;
|
|
|
1585
|
|
|
1586 /* #### Can this happen? */
|
|
|
1587 if (width < 0)
|
|
|
1588 width = 0;
|
|
|
1589 }
|
|
|
1590
|
|
|
1591 data->start_col = 0;
|
|
|
1592 retval = add_hscroll_rune (data);
|
|
|
1593
|
|
|
1594 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1595 if (retval != NULL || !width)
|
|
|
1596 return retval;
|
|
|
1597 }
|
|
|
1598 else
|
|
|
1599 xoffset = 0;
|
|
|
1600
|
|
|
1601 if (data->pixpos + width > data->max_pixpos)
|
|
|
1602 {
|
|
|
1603 /* If this is the first object we are attempting to add to
|
|
|
1604 the line then we ignore the horizontal_clip threshold.
|
|
|
1605 Otherwise we will loop until the bottom of the window
|
|
|
1606 continually failing to add this glyph because it is wider
|
|
|
1607 than the window. We could alternatively just completely
|
|
|
1608 ignore the glyph and proceed from there but I think that
|
|
|
1609 this is a better solution. */
|
|
|
1610 if (Dynarr_length (data->db->runes)
|
|
|
1611 && data->max_pixpos - data->pixpos < horizontal_clip)
|
|
|
1612 return ADD_FAILED;
|
|
|
1613 else
|
|
|
1614 width = data->max_pixpos - data->pixpos;
|
|
|
1615 }
|
|
|
1616
|
|
|
1617 if (cachel)
|
|
|
1618 {
|
|
|
1619 ascent = cachel->ascent;
|
|
|
1620 descent = cachel->descent;
|
|
|
1621 }
|
|
|
1622 else
|
|
|
1623 {
|
|
398
|
1624 ascent = glyph_ascent (gb->glyph, data->window);
|
|
|
1625 descent = glyph_descent (gb->glyph, data->window);
|
|
0
|
1626 }
|
|
|
1627
|
|
|
1628 baseline = glyph_baseline (gb->glyph, data->window);
|
|
|
1629
|
|
|
1630 if (glyph_contrib_p (gb->glyph, data->window))
|
|
|
1631 {
|
|
|
1632 /* A pixmap that has not had a baseline explicitly set. Its
|
|
|
1633 contribution will be determined later. */
|
|
|
1634 if (NILP (baseline))
|
|
|
1635 {
|
|
|
1636 int height = ascent + descent;
|
|
|
1637 data->max_pixmap_height = max (data->max_pixmap_height, height);
|
|
|
1638 }
|
|
|
1639
|
|
|
1640 /* A string so determine contribution normally. */
|
|
|
1641 else if (EQ (baseline, Qt))
|
|
|
1642 {
|
|
|
1643 data->new_ascent = max (data->new_ascent, ascent);
|
|
|
1644 data->new_descent = max (data->new_descent, descent);
|
|
|
1645 }
|
|
|
1646
|
|
|
1647 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
1648 contribution here. */
|
|
|
1649 else if (INTP (baseline))
|
|
|
1650 {
|
|
|
1651 int height = ascent + descent;
|
|
|
1652 int pix_ascent, pix_descent;
|
|
|
1653
|
|
|
1654 pix_ascent = height * XINT (baseline) / 100;
|
|
|
1655 pix_descent = height - pix_ascent;
|
|
|
1656
|
|
|
1657 data->new_ascent = max (data->new_ascent, pix_ascent);
|
|
|
1658 data->new_descent = max (data->new_descent, pix_descent);
|
|
|
1659 }
|
|
|
1660
|
|
|
1661 /* Otherwise something is screwed up. */
|
|
|
1662 else
|
|
|
1663 abort ();
|
|
|
1664 }
|
|
|
1665
|
|
|
1666 face = glyph_face (gb->glyph, data->window);
|
|
|
1667 if (NILP (face))
|
|
406
|
1668 findex = data->findex;
|
|
0
|
1669 else
|
|
406
|
1670 findex = get_builtin_face_cache_index (w, face);
|
|
|
1671
|
|
|
1672 instance = glyph_image_instance (gb->glyph, data->window,
|
|
|
1673 ERROR_ME_NOT, 1);
|
|
|
1674 if (TEXT_IMAGE_INSTANCEP (instance))
|
|
|
1675 {
|
|
|
1676 Lisp_Object string = XIMAGE_INSTANCE_TEXT_STRING (instance);
|
|
|
1677 face_index orig_findex = data->findex;
|
|
|
1678 Bytind orig_bufpos = data->bi_bufpos;
|
|
|
1679 Bytind orig_start_col_enabled = data->bi_start_col_enabled;
|
|
|
1680
|
|
|
1681 data->findex = findex;
|
|
|
1682 data->bi_start_col_enabled = 0;
|
|
|
1683 if (!allow_cursor)
|
|
|
1684 data->bi_bufpos = 0;
|
|
|
1685 add_bufbyte_string_runes (data, XSTRING_DATA (string),
|
|
|
1686 XSTRING_LENGTH (string), 0);
|
|
|
1687 data->findex = orig_findex;
|
|
|
1688 data->bi_bufpos = orig_bufpos;
|
|
|
1689 data->bi_start_col_enabled = orig_start_col_enabled;
|
|
|
1690 return NULL;
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 rb.findex = findex;
|
|
0
|
1694 rb.xpos = data->pixpos;
|
|
|
1695 rb.width = width;
|
|
|
1696 rb.bufpos = 0; /* glyphs are never "at" anywhere */
|
|
|
1697 if (data->bi_endpos)
|
|
243
|
1698 /* #### is this necessary at all? */
|
|
|
1699 rb.endpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1700 data->bi_endpos);
|
|
0
|
1701 else
|
|
|
1702 rb.endpos = 0;
|
|
|
1703 rb.type = RUNE_DGLYPH;
|
|
|
1704 rb.object.dglyph.glyph = gb->glyph;
|
|
|
1705 rb.object.dglyph.extent = gb->extent;
|
|
|
1706 rb.object.dglyph.xoffset = xoffset;
|
|
|
1707
|
|
|
1708 if (allow_cursor)
|
|
|
1709 {
|
|
243
|
1710 rb.bufpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1711 data->bi_bufpos);
|
|
0
|
1712
|
|
|
1713 if (data->cursor_type == CURSOR_ON)
|
|
|
1714 {
|
|
|
1715 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1716 {
|
|
|
1717 rb.cursor_type = CURSOR_ON;
|
|
|
1718 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1719 }
|
|
|
1720 else
|
|
|
1721 rb.cursor_type = CURSOR_OFF;
|
|
|
1722 }
|
|
|
1723 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1724 {
|
|
|
1725 rb.cursor_type = CURSOR_ON;
|
|
|
1726 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1727 data->cursor_type = NO_CURSOR;
|
|
|
1728 }
|
|
|
1729 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
1730 rb.cursor_type = IGNORE_CURSOR;
|
|
|
1731 else if (data->cursor_type == NO_CURSOR)
|
|
|
1732 rb.cursor_type = NO_CURSOR;
|
|
|
1733 else
|
|
|
1734 rb.cursor_type = CURSOR_OFF;
|
|
|
1735 }
|
|
|
1736 else
|
|
|
1737 rb.cursor_type = CURSOR_OFF;
|
|
|
1738
|
|
|
1739 Dynarr_add (data->db->runes, rb);
|
|
|
1740 data->pixpos += width;
|
|
|
1741
|
|
|
1742 return NULL;
|
|
|
1743 }
|
|
|
1744 else
|
|
|
1745 {
|
|
|
1746 if (!NILP (glyph_face (gb->glyph, data->window)))
|
|
|
1747 gb->findex =
|
|
|
1748 get_builtin_face_cache_index (w, glyph_face (gb->glyph,
|
|
|
1749 data->window));
|
|
|
1750 else
|
|
|
1751 gb->findex = data->findex;
|
|
|
1752
|
|
|
1753 if (pos_type == BEGIN_GLYPHS)
|
|
|
1754 {
|
|
|
1755 if (!data->dl->left_glyphs)
|
|
185
|
1756 data->dl->left_glyphs = Dynarr_new (glyph_block);
|
|
0
|
1757 Dynarr_add (data->dl->left_glyphs, *gb);
|
|
|
1758 return NULL;
|
|
|
1759 }
|
|
|
1760 else if (pos_type == END_GLYPHS)
|
|
|
1761 {
|
|
|
1762 if (!data->dl->right_glyphs)
|
|
185
|
1763 data->dl->right_glyphs = Dynarr_new (glyph_block);
|
|
0
|
1764 Dynarr_add (data->dl->right_glyphs, *gb);
|
|
|
1765 return NULL;
|
|
|
1766 }
|
|
|
1767 else
|
|
|
1768 abort (); /* there are no unknown types */
|
|
|
1769 }
|
|
|
1770
|
|
|
1771 return NULL; /* shut up compiler */
|
|
|
1772 }
|
|
|
1773
|
|
|
1774 /* Add all glyphs at position POS_TYPE that are contained in the given
|
|
|
1775 data. */
|
|
|
1776
|
|
|
1777 static prop_block_dynarr *
|
|
|
1778 add_glyph_runes (pos_data *data, int pos_type)
|
|
|
1779 {
|
|
|
1780 /* #### This still needs to handle the start_col parameter. Duh, Chuck,
|
|
|
1781 why didn't you just modify add_glyph_rune in the first place? */
|
|
|
1782 int elt;
|
|
|
1783 glyph_block_dynarr *glyph_arr = (pos_type == BEGIN_GLYPHS
|
|
|
1784 ? data->ef->begin_glyphs
|
|
|
1785 : data->ef->end_glyphs);
|
|
|
1786 prop_block_dynarr *prop;
|
|
|
1787
|
|
|
1788 for (elt = 0; elt < Dynarr_length (glyph_arr); elt++)
|
|
|
1789 {
|
|
|
1790 prop = add_glyph_rune (data, Dynarr_atp (glyph_arr, elt), pos_type, 0,
|
|
|
1791 0);
|
|
|
1792
|
|
|
1793 if (prop)
|
|
|
1794 {
|
|
|
1795 /* #### Add some propagation information. */
|
|
|
1796 return prop;
|
|
|
1797 }
|
|
|
1798 }
|
|
|
1799
|
|
|
1800 Dynarr_reset (glyph_arr);
|
|
|
1801
|
|
|
1802 return NULL;
|
|
|
1803 }
|
|
|
1804
|
|
|
1805 /* Given a position for a buffer in a window, ensure that the given
|
|
|
1806 display line DL accurately represents the text on a line starting
|
|
|
1807 at the given position.
|
|
|
1808
|
|
|
1809 NOTE NOTE NOTE NOTE: This function works with and returns Bytinds.
|
|
|
1810 You must do appropriate conversion. */
|
|
|
1811
|
|
|
1812 static Bytind
|
|
|
1813 create_text_block (struct window *w, struct display_line *dl,
|
|
398
|
1814 Bytind bi_start_pos, prop_block_dynarr **prop,
|
|
384
|
1815 int type)
|
|
0
|
1816 {
|
|
|
1817 struct frame *f = XFRAME (w->frame);
|
|
|
1818 struct buffer *b = XBUFFER (w->buffer);
|
|
|
1819 struct device *d = XDEVICE (f->device);
|
|
|
1820
|
|
|
1821 pos_data data;
|
|
|
1822
|
|
|
1823 /* Don't display anything in the minibuffer if this window is not on
|
|
|
1824 a selected frame. We consider all other windows to be active
|
|
|
1825 minibuffers as it simplifies the coding. */
|
|
|
1826 int active_minibuffer = (!MINI_WINDOW_P (w) ||
|
|
|
1827 (f == device_selected_frame (d)) ||
|
|
|
1828 is_surrogate_for_selected_frame (f));
|
|
|
1829
|
|
|
1830 int truncate_win = window_truncation_on (w);
|
|
|
1831 int end_glyph_width;
|
|
|
1832
|
|
|
1833 /* If the buffer's value of selective_display is an integer then
|
|
|
1834 only lines that start with less than selective_display columns of
|
|
|
1835 space will be displayed. If selective_display is t then all text
|
|
|
1836 after a ^M is invisible. */
|
|
|
1837 int selective = (INTP (b->selective_display)
|
|
|
1838 ? XINT (b->selective_display)
|
|
398
|
1839 : (!NILP (b->selective_display) ? -1 : 0));
|
|
0
|
1840
|
|
|
1841 /* The variable ctl-arrow allows the user to specify what characters
|
|
|
1842 can actually be displayed and which octal should be used for.
|
|
|
1843 #### This variable should probably have some rethought done to
|
|
|
1844 it.
|
|
|
1845
|
|
|
1846 #### It would also be really nice if you could specify that
|
|
|
1847 the characters come out in hex instead of in octal. Mule
|
|
|
1848 does that by adding a ctl-hexa variable similar to ctl-arrow,
|
|
|
1849 but that's bogus -- we need a more general solution. I
|
|
|
1850 think you need to extend the concept of display tables
|
|
|
1851 into a more general conversion mechanism. Ideally you
|
|
|
1852 could specify a Lisp function that converts characters,
|
|
|
1853 but this violates the Second Golden Rule and besides would
|
|
384
|
1854 make things way way way way slow.
|
|
|
1855
|
|
|
1856 So instead, we extend the display-table concept, which was
|
|
|
1857 historically limited to 256-byte vectors, to one of the
|
|
|
1858 following:
|
|
|
1859
|
|
|
1860 a) A 256-entry vector, for backward compatibility;
|
|
|
1861 b) char-table, mapping characters to values;
|
|
|
1862 c) range-table, mapping ranges of characters to values;
|
|
|
1863 d) a list of the above.
|
|
|
1864
|
|
|
1865 The (d) option allows you to specify multiple display tables
|
|
|
1866 instead of just one. Each display table can specify conversions
|
|
|
1867 for some characters and leave others unchanged. The way the
|
|
|
1868 character gets displayed is determined by the first display table
|
|
|
1869 with a binding for that character. This way, you could call a
|
|
|
1870 function `enable-hex-display' that adds a hex display-table to
|
|
|
1871 the list of display tables for the current buffer.
|
|
|
1872
|
|
|
1873 #### ...not yet implemented... Also, we extend the concept of
|
|
|
1874 "mapping" to include a printf-like spec. Thus you can make all
|
|
|
1875 extended characters show up as hex with a display table like
|
|
|
1876 this:
|
|
|
1877
|
|
|
1878 #s(range-table data ((256 524288) (format "%x")))
|
|
0
|
1879
|
|
|
1880 Since more than one display table is possible, you have
|
|
384
|
1881 great flexibility in mapping ranges of characters. */
|
|
0
|
1882 Emchar printable_min = (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
|
1883 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
1884 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
1885 ? 255 : 160));
|
|
|
1886
|
|
384
|
1887 Lisp_Object face_dt, window_dt;
|
|
|
1888
|
|
0
|
1889 /* The text display block for this display line. */
|
|
|
1890 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
1891
|
|
|
1892 /* The first time through the main loop we need to force the glyph
|
|
|
1893 data to be updated. */
|
|
|
1894 int initial = 1;
|
|
|
1895
|
|
|
1896 /* Apparently the new extent_fragment_update returns an end position
|
|
|
1897 equal to the position passed in if there are no more runs to be
|
|
|
1898 displayed. */
|
|
|
1899 int no_more_frags = 0;
|
|
|
1900
|
|
|
1901 Lisp_Object synch_minibuffers_value =
|
|
|
1902 symbol_value_in_buffer (Qsynchronize_minibuffers, w->buffer);
|
|
183
|
1903
|
|
0
|
1904 dl->used_prop_data = 0;
|
|
|
1905 dl->num_chars = 0;
|
|
406
|
1906 dl->line_continuation = 0;
|
|
0
|
1907
|
|
272
|
1908 xzero (data);
|
|
0
|
1909 data.ef = extent_fragment_new (w->buffer, f);
|
|
|
1910
|
|
|
1911 /* These values are used by all of the rune addition routines. We add
|
|
|
1912 them to this structure for ease of passing. */
|
|
|
1913 data.d = d;
|
|
|
1914 XSETWINDOW (data.window, w);
|
|
398
|
1915 data.string = Qnil;
|
|
0
|
1916 data.db = db;
|
|
|
1917 data.dl = dl;
|
|
|
1918
|
|
|
1919 data.bi_bufpos = bi_start_pos;
|
|
|
1920 data.pixpos = dl->bounds.left_in;
|
|
|
1921 data.last_charset = Qunbound;
|
|
94
|
1922 data.last_findex = DEFAULT_INDEX;
|
|
0
|
1923 data.result_str = Qnil;
|
|
|
1924
|
|
|
1925 /* Set the right boundary adjusting it to take into account any end
|
|
|
1926 glyph. Save the width of the end glyph for later use. */
|
|
|
1927 data.max_pixpos = dl->bounds.right_in;
|
|
|
1928 if (truncate_win)
|
|
|
1929 end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
|
|
|
1930 else
|
|
|
1931 end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
|
|
|
1932 data.max_pixpos -= end_glyph_width;
|
|
|
1933
|
|
265
|
1934 if (cursor_in_echo_area && MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
1935 {
|
|
|
1936 data.bi_cursor_bufpos = BI_BUF_ZV (b);
|
|
|
1937 data.cursor_type = CURSOR_ON;
|
|
0
|
1938 }
|
|
|
1939 else if (MINI_WINDOW_P (w) && !active_minibuffer)
|
|
|
1940 data.cursor_type = NO_CURSOR;
|
|
151
|
1941 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)) &&
|
|
|
1942 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
1943 d == XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d))))&&
|
|
|
1944 f == XFRAME(DEVICE_SELECTED_FRAME(d)))
|
|
0
|
1945 {
|
|
|
1946 data.bi_cursor_bufpos = BI_BUF_PT (b);
|
|
|
1947 data.cursor_type = CURSOR_ON;
|
|
|
1948 }
|
|
|
1949 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)))
|
|
|
1950 {
|
|
|
1951 data.bi_cursor_bufpos = bi_marker_position (w->pointm[type]);
|
|
|
1952 data.cursor_type = CURSOR_ON;
|
|
|
1953 }
|
|
|
1954 else
|
|
|
1955 data.cursor_type = NO_CURSOR;
|
|
|
1956 data.cursor_x = -1;
|
|
|
1957
|
|
|
1958 data.start_col = w->hscroll;
|
|
398
|
1959 data.start_col_xoffset = w->left_xoffset;
|
|
0
|
1960 data.bi_start_col_enabled = (w->hscroll ? bi_start_pos : 0);
|
|
217
|
1961 data.hscroll_glyph_width_adjust = 0;
|
|
0
|
1962
|
|
|
1963 /* We regenerate the line from the very beginning. */
|
|
|
1964 Dynarr_reset (db->runes);
|
|
|
1965
|
|
|
1966 /* Why is this less than or equal and not just less than? If the
|
|
|
1967 starting position is already equal to the maximum we can't add
|
|
|
1968 anything else, right? Wrong. We might still have a newline to
|
|
|
1969 add. A newline can use the room allocated for an end glyph since
|
|
|
1970 if we add it we know we aren't going to be adding any end
|
|
|
1971 glyph. */
|
|
|
1972
|
|
|
1973 /* #### Chuck -- I think this condition should be while (1).
|
|
|
1974 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
1975 and the begin-glyph ends exactly at the end of the window, the
|
|
|
1976 end-glyph and text might not be displayed. while (1) ensures
|
|
|
1977 that the loop terminates only when either (a) there is
|
|
|
1978 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
1979
|
|
|
1980 #### Also I think you need to ensure that the operation
|
|
|
1981 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
1982 can't get interrupted in the middle. If you run off the end
|
|
|
1983 of the line during that operation, then you keep accumulating
|
|
|
1984 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
1985 there's a begin glyph at a particular position and attempting
|
|
|
1986 to display that glyph results in window-end being hit and
|
|
|
1987 propagation data being generated, then the character at that
|
|
|
1988 position won't be displayed.
|
|
|
1989
|
|
|
1990 #### See also the comment after the end of this loop, below.
|
|
|
1991 */
|
|
|
1992 while (data.pixpos <= data.max_pixpos
|
|
|
1993 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
1994 {
|
|
|
1995 /* #### This check probably should not be necessary. */
|
|
|
1996 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
1997 {
|
|
|
1998 /* #### urk! More of this lossage! */
|
|
|
1999 data.bi_bufpos--;
|
|
|
2000 goto done;
|
|
|
2001 }
|
|
|
2002
|
|
|
2003 /* If selective display was an integer and we aren't working on
|
|
|
2004 a continuation line then find the next line we are actually
|
|
|
2005 supposed to display. */
|
|
|
2006 if (selective > 0
|
|
|
2007 && (data.bi_bufpos == BI_BUF_BEGV (b)
|
|
|
2008 || BUF_FETCH_CHAR (b, prev_bytind (b, data.bi_bufpos)) == '\n'))
|
|
|
2009 {
|
|
|
2010 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
2011 {
|
|
|
2012 data.bi_bufpos =
|
|
|
2013 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2014 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
2015 {
|
|
|
2016 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
2017 goto done;
|
|
|
2018 }
|
|
|
2019 }
|
|
|
2020 }
|
|
|
2021
|
|
|
2022 /* Check for face changes. */
|
|
|
2023 if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
|
|
|
2024 {
|
|
|
2025 /* Now compute the face and begin/end-glyph information. */
|
|
|
2026 data.findex =
|
|
|
2027 /* Remember that the extent-fragment routines deal in Bytind's. */
|
|
|
2028 extent_fragment_update (w, data.ef, data.bi_bufpos);
|
|
|
2029
|
|
384
|
2030 get_display_tables (w, data.findex, &face_dt, &window_dt);
|
|
|
2031
|
|
0
|
2032 if (data.bi_bufpos == data.ef->end)
|
|
|
2033 no_more_frags = 1;
|
|
|
2034 }
|
|
|
2035 initial = 0;
|
|
|
2036
|
|
|
2037 /* Determine what is next to be displayed. We first handle any
|
|
|
2038 glyphs returned by glyphs_at_bufpos. If there are no glyphs to
|
|
|
2039 display then we determine what to do based on the character at the
|
|
|
2040 current buffer position. */
|
|
|
2041
|
|
|
2042 /* If the current position is covered by an invisible extent, do
|
|
|
2043 nothing (except maybe add some ellipses).
|
|
|
2044
|
|
|
2045 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
2046 invisible extent should be investigated further. This is
|
|
|
2047 fairly low priority though. */
|
|
|
2048 if (data.ef->invisible)
|
|
|
2049 {
|
|
|
2050 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
2051 really know what I'm doing. */
|
|
|
2052 if (*prop)
|
|
|
2053 {
|
|
|
2054 Dynarr_free (*prop);
|
|
|
2055 *prop = 0;
|
|
|
2056 }
|
|
|
2057
|
|
|
2058 /* The extent fragment code only sets this when we should
|
|
|
2059 really display the ellipses. It makes sure the ellipses
|
|
|
2060 don't get displayed more than once in a row. */
|
|
|
2061 if (data.ef->invisible_ellipses)
|
|
|
2062 {
|
|
|
2063 struct glyph_block gb;
|
|
|
2064
|
|
|
2065 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
2066 data.ef->invisible_ellipses = 0;
|
|
|
2067 gb.extent = Qnil;
|
|
|
2068 gb.glyph = Vinvisible_text_glyph;
|
|
|
2069 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2070 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2071 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
2072 is to display a newline (for compatibility with
|
|
|
2073 selective-display-ellipses)? Maybe that's too
|
|
|
2074 abstruse. */
|
|
|
2075 if (*prop)
|
|
|
2076 goto done;
|
|
|
2077 }
|
|
|
2078
|
|
|
2079 /* If point is in an invisible region we place it on the
|
|
|
2080 next visible character. */
|
|
|
2081 if (data.cursor_type == CURSOR_ON
|
|
|
2082 && data.bi_bufpos == data.bi_cursor_bufpos)
|
|
|
2083 {
|
|
|
2084 data.cursor_type = NEXT_CURSOR;
|
|
|
2085 }
|
|
|
2086
|
|
|
2087 /* #### What if we we're dealing with a display table? */
|
|
|
2088 if (data.start_col)
|
|
|
2089 data.start_col--;
|
|
|
2090
|
|
|
2091 if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2092 goto done;
|
|
|
2093 else
|
|
|
2094 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2095 }
|
|
|
2096
|
|
|
2097 /* If there is propagation data, then it represents the current
|
|
|
2098 buffer position being displayed. Add them and advance the
|
|
|
2099 position counter. This might also add the minibuffer
|
|
|
2100 prompt. */
|
|
|
2101 else if (*prop)
|
|
|
2102 {
|
|
|
2103 dl->used_prop_data = 1;
|
|
|
2104 *prop = add_propagation_runes (prop, &data);
|
|
|
2105
|
|
|
2106 if (*prop)
|
|
|
2107 goto done; /* gee, a really narrow window */
|
|
|
2108 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2109 goto done;
|
|
|
2110 else if (data.bi_bufpos < BI_BUF_BEGV (b))
|
|
|
2111 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
|
2112 data.bi_bufpos = BI_BUF_BEGV (b);
|
|
183
|
2113 else
|
|
0
|
2114 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2115 }
|
|
|
2116
|
|
|
2117 /* If there are end glyphs, add them to the line. These are
|
|
|
2118 the end glyphs for the previous run of text. We add them
|
|
|
2119 here rather than doing them at the end of handling the
|
|
|
2120 previous run so that glyphs at the beginning and end of
|
|
|
2121 a line are handled correctly. */
|
|
|
2122 else if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
2123 {
|
|
|
2124 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
|
2125 if (*prop)
|
|
|
2126 goto done;
|
|
|
2127 }
|
|
|
2128
|
|
|
2129 /* If there are begin glyphs, add them to the line. */
|
|
|
2130 else if (Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
2131 {
|
|
|
2132 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
|
2133 if (*prop)
|
|
|
2134 goto done;
|
|
|
2135 }
|
|
|
2136
|
|
|
2137 /* If at end-of-buffer, we've already processed begin and
|
|
|
2138 end-glyphs at this point and there's no text to process,
|
|
|
2139 so we're done. */
|
|
|
2140 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2141 goto done;
|
|
|
2142
|
|
|
2143 else
|
|
|
2144 {
|
|
384
|
2145 Lisp_Object entry = Qnil;
|
|
0
|
2146 /* Get the character at the current buffer position. */
|
|
|
2147 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
384
|
2148 if (!NILP (face_dt) || !NILP (window_dt))
|
|
|
2149 entry = display_table_entry (data.ch, face_dt, window_dt);
|
|
0
|
2150
|
|
|
2151 /* If there is a display table entry for it, hand it off to
|
|
|
2152 add_disp_table_entry_runes and let it worry about it. */
|
|
384
|
2153 if (!NILP (entry) && !EQ (entry, make_char (data.ch)))
|
|
0
|
2154 {
|
|
384
|
2155 *prop = add_disp_table_entry_runes (&data, entry);
|
|
0
|
2156
|
|
|
2157 if (*prop)
|
|
|
2158 goto done;
|
|
|
2159 }
|
|
|
2160
|
|
|
2161 /* Check if we have hit a newline character. If so, add a marker
|
|
|
2162 to the line and end this loop. */
|
|
|
2163 else if (data.ch == '\n')
|
|
|
2164 {
|
|
|
2165 /* We aren't going to be adding an end glyph so give its
|
|
|
2166 space back in order to make sure that the cursor can
|
|
|
2167 fit. */
|
|
|
2168 data.max_pixpos += end_glyph_width;
|
|
|
2169
|
|
|
2170 if (selective > 0
|
|
|
2171 && (bi_spaces_at_point
|
|
|
2172 (b, next_bytind (b, data.bi_bufpos))
|
|
|
2173 >= selective))
|
|
|
2174 {
|
|
|
2175 if (!NILP (b->selective_display_ellipses))
|
|
|
2176 {
|
|
|
2177 struct glyph_block gb;
|
|
|
2178
|
|
|
2179 gb.extent = Qnil;
|
|
|
2180 gb.glyph = Vinvisible_text_glyph;
|
|
|
2181 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2182 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2183 }
|
|
|
2184 else
|
|
|
2185 {
|
|
|
2186 /* Cheesy, cheesy, cheesy. We mark the end of the
|
|
|
2187 line with a special "character rune" whose width
|
|
|
2188 is the EOL cursor width and whose character is
|
|
|
2189 the non-printing character '\n'. */
|
|
|
2190 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2191 *prop = add_emchar_rune (&data);
|
|
|
2192 }
|
|
|
2193
|
|
|
2194 /* We need to set data.bi_bufpos to the start of the
|
|
|
2195 next visible region in order to make this line
|
|
|
2196 appear to contain all of the invisible area.
|
|
|
2197 Otherwise, the line cache won't work
|
|
|
2198 correctly. */
|
|
|
2199 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2200 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
2201 {
|
|
|
2202 data.bi_bufpos =
|
|
|
2203 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2204 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
2205 {
|
|
|
2206 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
2207 break;
|
|
|
2208 }
|
|
|
2209 }
|
|
|
2210 if (BI_BUF_FETCH_CHAR
|
|
|
2211 (b, prev_bytind (b, data.bi_bufpos)) == '\n')
|
|
|
2212 DEC_BYTIND (b, data.bi_bufpos);
|
|
|
2213 }
|
|
|
2214 else
|
|
|
2215 {
|
|
|
2216 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2217 *prop = add_emchar_rune (&data);
|
|
|
2218 }
|
|
|
2219
|
|
|
2220 goto done;
|
|
|
2221 }
|
|
|
2222
|
|
|
2223 /* If the current character is ^M, and selective display is
|
|
|
2224 enabled, then add the invisible-text-glyph if
|
|
|
2225 selective-display-ellipses is set. In any case, this
|
|
|
2226 line is done. */
|
|
|
2227 else if (data.ch == (('M' & 037)) && selective == -1)
|
|
|
2228 {
|
|
|
2229 Bytind bi_next_bufpos;
|
|
|
2230
|
|
|
2231 /* Find the buffer position at the end of the line. */
|
|
|
2232 bi_next_bufpos =
|
|
|
2233 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2234 if (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_next_bufpos))
|
|
|
2235 == '\n')
|
|
|
2236 DEC_BYTIND (b, bi_next_bufpos);
|
|
|
2237
|
|
|
2238 /* If the cursor is somewhere in the elided text make
|
|
|
2239 sure that the cursor gets drawn appropriately. */
|
|
|
2240 if (data.cursor_type == CURSOR_ON
|
|
|
2241 && (data.bi_cursor_bufpos >= data.bi_bufpos &&
|
|
|
2242 data.bi_cursor_bufpos < bi_next_bufpos))
|
|
|
2243 {
|
|
|
2244 data.cursor_type = NEXT_CURSOR;
|
|
|
2245 }
|
|
|
2246
|
|
|
2247 /* We won't be adding a truncation or continuation glyph
|
|
|
2248 so give up the room allocated for them. */
|
|
|
2249 data.max_pixpos += end_glyph_width;
|
|
|
2250
|
|
|
2251 if (!NILP (b->selective_display_ellipses))
|
|
|
2252 {
|
|
|
2253 /* We don't propagate anything from the invisible
|
|
|
2254 text glyph if it fails to fit. This is
|
|
|
2255 intentional. */
|
|
|
2256 struct glyph_block gb;
|
|
|
2257
|
|
|
2258 gb.extent = Qnil;
|
|
|
2259 gb.glyph = Vinvisible_text_glyph;
|
|
|
2260 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1,
|
|
|
2261 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2262 }
|
|
|
2263
|
|
|
2264 /* Set the buffer position to the end of the line. We
|
|
|
2265 need to do this before potentially adding a newline
|
|
|
2266 so that the cursor flag will get set correctly (if
|
|
|
2267 needed). */
|
|
|
2268 data.bi_bufpos = bi_next_bufpos;
|
|
|
2269
|
|
|
2270 if (NILP (b->selective_display_ellipses)
|
|
|
2271 || data.bi_cursor_bufpos == bi_next_bufpos)
|
|
|
2272 {
|
|
|
2273 /* We have to at least add a newline character so
|
|
|
2274 that the cursor shows up properly. */
|
|
|
2275 data.ch = '\n';
|
|
|
2276 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2277 data.findex = DEFAULT_INDEX;
|
|
|
2278 data.start_col = 0;
|
|
398
|
2279 data.start_col_xoffset = 0;
|
|
0
|
2280 data.bi_start_col_enabled = 0;
|
|
|
2281
|
|
|
2282 add_emchar_rune (&data);
|
|
|
2283 }
|
|
|
2284
|
|
|
2285 /* This had better be a newline but doing it this way
|
|
|
2286 we'll see obvious incorrect results if it isn't. No
|
|
|
2287 need to abort here. */
|
|
|
2288 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
|
2289
|
|
|
2290 goto done;
|
|
|
2291 }
|
|
|
2292
|
|
|
2293 /* If the current character is considered to be printable, then
|
|
|
2294 just add it. */
|
|
|
2295 else if (data.ch >= printable_min)
|
|
|
2296 {
|
|
|
2297 *prop = add_emchar_rune (&data);
|
|
|
2298 if (*prop)
|
|
|
2299 goto done;
|
|
|
2300 }
|
|
|
2301
|
|
|
2302 /* If the current character is a tab, determine the next tab
|
|
|
2303 starting position and add a blank rune which extends from the
|
|
|
2304 current pixel position to that starting position. */
|
|
|
2305 else if (data.ch == '\t')
|
|
|
2306 {
|
|
|
2307 int tab_start_pixpos = data.pixpos;
|
|
|
2308 int next_tab_start;
|
|
|
2309 int char_tab_width;
|
|
|
2310 int prop_width = 0;
|
|
|
2311
|
|
|
2312 if (data.start_col > 1)
|
|
398
|
2313 tab_start_pixpos -= (space_width (w) * (data.start_col - 1))
|
|
|
2314 + data.start_col_xoffset;
|
|
0
|
2315
|
|
217
|
2316 next_tab_start =
|
|
|
2317 next_tab_position (w, tab_start_pixpos,
|
|
|
2318 dl->bounds.left_in +
|
|
|
2319 data.hscroll_glyph_width_adjust);
|
|
0
|
2320 if (next_tab_start > data.max_pixpos)
|
|
|
2321 {
|
|
|
2322 prop_width = next_tab_start - data.max_pixpos;
|
|
|
2323 next_tab_start = data.max_pixpos;
|
|
|
2324 }
|
|
|
2325 data.blank_width = next_tab_start - data.pixpos;
|
|
|
2326 char_tab_width =
|
|
|
2327 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
2328
|
|
|
2329 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
2330
|
|
|
2331 /* add_blank_rune is only supposed to be called with
|
|
|
2332 sizes guaranteed to fit in the available space. */
|
|
|
2333 assert (!(*prop));
|
|
|
2334
|
|
|
2335 if (prop_width)
|
|
|
2336 {
|
|
|
2337 struct prop_block pb;
|
|
185
|
2338 *prop = Dynarr_new (prop_block);
|
|
0
|
2339
|
|
|
2340 pb.type = PROP_BLANK;
|
|
|
2341 pb.data.p_blank.width = prop_width;
|
|
|
2342 pb.data.p_blank.findex = data.findex;
|
|
|
2343 Dynarr_add (*prop, pb);
|
|
|
2344
|
|
|
2345 goto done;
|
|
|
2346 }
|
|
|
2347 }
|
|
|
2348
|
|
|
2349 /* If character is a control character, pass it off to
|
|
|
2350 add_control_char_runes.
|
|
|
2351
|
|
|
2352 The is_*() routines have undefined results on
|
|
|
2353 arguments outside of the range [-1, 255]. (This
|
|
|
2354 often bites people who carelessly use `char' instead
|
|
|
2355 of `unsigned char'.)
|
|
|
2356 */
|
|
|
2357 else if (data.ch < 0x100 && iscntrl ((Bufbyte) data.ch))
|
|
|
2358 {
|
|
|
2359 *prop = add_control_char_runes (&data, b);
|
|
|
2360
|
|
|
2361 if (*prop)
|
|
|
2362 goto done;
|
|
|
2363 }
|
|
|
2364
|
|
|
2365 /* If the character is above the ASCII range and we have not
|
|
|
2366 already handled it, then print it as an octal number. */
|
|
|
2367 else if (data.ch >= 0200)
|
|
|
2368 {
|
|
|
2369 *prop = add_octal_runes (&data);
|
|
|
2370
|
|
|
2371 if (*prop)
|
|
|
2372 goto done;
|
|
|
2373 }
|
|
|
2374
|
|
|
2375 /* Assume the current character is considered to be printable,
|
|
|
2376 then just add it. */
|
|
|
2377 else
|
|
|
2378 {
|
|
|
2379 *prop = add_emchar_rune (&data);
|
|
|
2380 if (*prop)
|
|
|
2381 goto done;
|
|
|
2382 }
|
|
|
2383
|
|
|
2384 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2385 }
|
|
|
2386 }
|
|
|
2387
|
|
|
2388 done:
|
|
|
2389
|
|
|
2390 /* Determine the starting point of the next line if we did not hit the
|
|
|
2391 end of the buffer. */
|
|
|
2392 if (data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2393 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
2394 {
|
|
|
2395 /* #### This check is not correct. If the line terminated
|
|
|
2396 due to a begin-glyph or end-glyph hitting window-end, then
|
|
|
2397 data.ch will not point to the character at data.bi_bufpos. If
|
|
|
2398 you make the two changes mentioned at the top of this loop,
|
|
|
2399 you should be able to say '(if (*prop))'. That should also
|
|
|
2400 make it possible to eliminate the data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2401 check. */
|
|
|
2402
|
|
|
2403 /* The common case is that the line ended because we hit a newline.
|
|
|
2404 In that case, the next character is just the next buffer
|
|
|
2405 position. */
|
|
|
2406 if (data.ch == '\n')
|
|
|
2407 {
|
|
|
2408 /* If data.start_col_enabled is still true, then the window is
|
|
|
2409 scrolled far enough so that nothing on this line is visible.
|
|
380
|
2410 We need to stick a truncation glyph at the beginning of the
|
|
0
|
2411 line in that case unless the line is completely blank. */
|
|
|
2412 if (data.bi_start_col_enabled)
|
|
|
2413 {
|
|
|
2414 if (data.cursor_type == CURSOR_ON)
|
|
|
2415 {
|
|
|
2416 if (data.bi_cursor_bufpos >= bi_start_pos
|
|
|
2417 && data.bi_cursor_bufpos <= data.bi_bufpos)
|
|
|
2418 data.bi_cursor_bufpos = data.bi_bufpos;
|
|
|
2419 }
|
|
|
2420 data.findex = DEFAULT_INDEX;
|
|
|
2421 data.start_col = 0;
|
|
|
2422 data.bi_start_col_enabled = 0;
|
|
|
2423
|
|
|
2424 if (data.bi_bufpos != bi_start_pos)
|
|
|
2425 {
|
|
|
2426 struct glyph_block gb;
|
|
|
2427
|
|
|
2428 gb.extent = Qnil;
|
|
|
2429 gb.glyph = Vhscroll_glyph;
|
|
|
2430 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2431 GLYPH_CACHEL (w, HSCROLL_GLYPH_INDEX));
|
|
|
2432 }
|
|
|
2433 else
|
|
|
2434 {
|
|
|
2435 /* This duplicates code down below to add a newline to
|
|
|
2436 the end of an otherwise empty line.*/
|
|
|
2437 data.ch = '\n';
|
|
|
2438 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2439
|
|
|
2440 add_emchar_rune (&data);
|
|
|
2441 }
|
|
|
2442 }
|
|
|
2443
|
|
|
2444 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2445 }
|
|
|
2446
|
|
|
2447 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
2448 line. */
|
|
|
2449 else
|
|
|
2450 {
|
|
|
2451 struct glyph_block gb;
|
|
|
2452 struct glyph_cachel *cachel;
|
|
|
2453
|
|
|
2454 /* If the line is to be truncated then we actually have to look
|
|
|
2455 for the next newline. We also add the end-of-line glyph which
|
|
|
2456 we know will fit because we adjusted the right border before
|
|
|
2457 we starting laying out the line. */
|
|
|
2458 data.max_pixpos += end_glyph_width;
|
|
|
2459 data.findex = DEFAULT_INDEX;
|
|
|
2460 gb.extent = Qnil;
|
|
|
2461
|
|
|
2462 if (truncate_win)
|
|
|
2463 {
|
|
|
2464 Bytind bi_pos;
|
|
|
2465
|
|
|
2466 /* Now find the start of the next line. */
|
|
|
2467 bi_pos = bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2468
|
|
|
2469 /* If the cursor is past the truncation line then we
|
|
|
2470 make it appear on the truncation glyph. If we've hit
|
|
|
2471 the end of the buffer then we also make the cursor
|
|
110
|
2472 appear unless eob is immediately preceded by a
|
|
0
|
2473 newline. In that case the cursor should actually
|
|
|
2474 appear on the next line. */
|
|
183
|
2475 if (data.cursor_type == CURSOR_ON
|
|
0
|
2476 && data.bi_cursor_bufpos >= data.bi_bufpos
|
|
|
2477 && (data.bi_cursor_bufpos < bi_pos ||
|
|
|
2478 (bi_pos == BI_BUF_ZV (b)
|
|
|
2479 && (bi_pos == BI_BUF_BEGV (b)
|
|
|
2480 || (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_pos))
|
|
|
2481 != '\n')))))
|
|
|
2482 data.bi_cursor_bufpos = bi_pos;
|
|
|
2483 else
|
|
|
2484 data.cursor_type = NO_CURSOR;
|
|
|
2485
|
|
|
2486 data.bi_bufpos = bi_pos;
|
|
|
2487 gb.glyph = Vtruncation_glyph;
|
|
|
2488 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
2489 }
|
|
|
2490 else
|
|
|
2491 {
|
|
|
2492 /* The cursor can never be on the continuation glyph. */
|
|
|
2493 data.cursor_type = NO_CURSOR;
|
|
|
2494
|
|
|
2495 /* data.bi_bufpos is already at the start of the next line. */
|
|
|
2496
|
|
406
|
2497 dl->line_continuation = 1;
|
|
0
|
2498 gb.glyph = Vcontinuation_glyph;
|
|
|
2499 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
2500 }
|
|
|
2501
|
|
406
|
2502 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, cachel);
|
|
0
|
2503
|
|
|
2504 if (truncate_win && data.bi_bufpos == BI_BUF_ZV (b)
|
|
|
2505 && BI_BUF_FETCH_CHAR (b, prev_bytind (b, BI_BUF_ZV (b))) != '\n')
|
|
|
2506 /* #### Damn this losing shit. */
|
|
|
2507 data.bi_bufpos++;
|
|
|
2508 }
|
|
|
2509 }
|
|
|
2510 else if ((active_minibuffer || !NILP (synch_minibuffers_value))
|
|
|
2511 && (!echo_area_active (f) || data.bi_bufpos == BI_BUF_ZV (b)))
|
|
|
2512 {
|
|
|
2513 /* We need to add a marker to the end of the line since there is no
|
|
|
2514 newline character in order for the cursor to get drawn. We label
|
|
|
2515 it as a newline so that it gets handled correctly by the
|
|
|
2516 whitespace routines below. */
|
|
|
2517
|
|
|
2518 data.ch = '\n';
|
|
|
2519 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2520 data.findex = DEFAULT_INDEX;
|
|
|
2521 data.start_col = 0;
|
|
398
|
2522 data.start_col_xoffset = 0;
|
|
0
|
2523 data.bi_start_col_enabled = 0;
|
|
|
2524
|
|
|
2525 data.max_pixpos += data.blank_width;
|
|
|
2526 add_emchar_rune (&data);
|
|
|
2527 data.max_pixpos -= data.blank_width;
|
|
183
|
2528
|
|
0
|
2529 /* #### urk! Chuck, this shit is bad news. Going around
|
|
|
2530 manipulating invalid positions is guaranteed to result in
|
|
|
2531 trouble sooner or later. */
|
|
|
2532 data.bi_bufpos = BI_BUF_ZV (b) + 1;
|
|
|
2533 }
|
|
|
2534
|
|
|
2535 /* Calculate left whitespace boundary. */
|
|
|
2536 {
|
|
|
2537 int elt = 0;
|
|
|
2538
|
|
|
2539 /* Whitespace past a newline is considered right whitespace. */
|
|
|
2540 while (elt < Dynarr_length (db->runes))
|
|
|
2541 {
|
|
|
2542 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2543
|
|
|
2544 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
2545 || rb->type == RUNE_BLANK)
|
|
|
2546 {
|
|
|
2547 dl->bounds.left_white += rb->width;
|
|
|
2548 elt++;
|
|
|
2549 }
|
|
|
2550 else
|
|
|
2551 elt = Dynarr_length (db->runes);
|
|
|
2552 }
|
|
|
2553 }
|
|
|
2554
|
|
|
2555 /* Calculate right whitespace boundary. */
|
|
|
2556 {
|
|
|
2557 int elt = Dynarr_length (db->runes) - 1;
|
|
|
2558 int done = 0;
|
|
|
2559
|
|
|
2560 while (!done && elt >= 0)
|
|
|
2561 {
|
|
|
2562 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2563
|
|
|
2564 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
2565 && isspace (rb->object.chr.ch))
|
|
|
2566 && !rb->type == RUNE_BLANK)
|
|
|
2567 {
|
|
|
2568 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
2569 done = 1;
|
|
|
2570 }
|
|
|
2571
|
|
|
2572 elt--;
|
|
|
2573
|
|
|
2574 }
|
|
|
2575
|
|
|
2576 /* The line is blank so everything is considered to be right
|
|
|
2577 whitespace. */
|
|
|
2578 if (!done)
|
|
|
2579 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
2580 }
|
|
|
2581
|
|
|
2582 /* Set the display blocks bounds. */
|
|
|
2583 db->start_pos = dl->bounds.left_in;
|
|
|
2584 if (Dynarr_length (db->runes))
|
|
|
2585 {
|
|
|
2586 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
2587
|
|
|
2588 db->end_pos = rb->xpos + rb->width;
|
|
|
2589 }
|
|
|
2590 else
|
|
|
2591 db->end_pos = dl->bounds.right_white;
|
|
|
2592
|
|
|
2593 /* update line height parameters */
|
|
|
2594 if (!data.new_ascent && !data.new_descent)
|
|
|
2595 {
|
|
|
2596 /* We've got a blank line so initialize these values from the default
|
|
|
2597 face. */
|
|
|
2598 default_face_font_info (data.window, &data.new_ascent,
|
|
|
2599 &data.new_descent, 0, 0, 0);
|
|
|
2600 }
|
|
|
2601
|
|
|
2602 if (data.max_pixmap_height)
|
|
|
2603 {
|
|
|
2604 int height = data.new_ascent + data.new_descent;
|
|
|
2605 int pix_ascent, pix_descent;
|
|
|
2606
|
|
|
2607 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2608 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2609
|
|
|
2610 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2611 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2612 }
|
|
|
2613
|
|
|
2614 dl->ascent = data.new_ascent;
|
|
|
2615 dl->descent = data.new_descent;
|
|
|
2616
|
|
|
2617 {
|
|
|
2618 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
2619
|
|
|
2620 if (dl->ascent < ascent)
|
|
|
2621 dl->ascent = ascent;
|
|
|
2622 }
|
|
|
2623 {
|
|
|
2624 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
2625
|
|
|
2626 if (dl->descent < descent)
|
|
|
2627 dl->descent = descent;
|
|
|
2628 }
|
|
|
2629
|
|
|
2630 dl->cursor_elt = data.cursor_x;
|
|
|
2631 /* #### lossage lossage lossage! Fix this shit! */
|
|
|
2632 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
2633 dl->end_bufpos = BUF_ZV (b);
|
|
|
2634 else
|
|
|
2635 dl->end_bufpos = bytind_to_bufpos (b, data.bi_bufpos) - 1;
|
|
|
2636 if (truncate_win)
|
|
|
2637 data.dl->num_chars = column_at_point (b, dl->end_bufpos, 0);
|
|
|
2638 else
|
|
|
2639 /* This doesn't correctly take into account tabs and control
|
|
|
2640 characters but if the window isn't being truncated then this
|
|
|
2641 value isn't going to end up being used anyhow. */
|
|
|
2642 data.dl->num_chars = dl->end_bufpos - dl->bufpos;
|
|
|
2643
|
|
|
2644 /* #### handle horizontally scrolled line with text none of which
|
|
|
2645 was actually laid out. */
|
|
|
2646
|
|
|
2647 /* #### handle any remainder of overlay arrow */
|
|
|
2648
|
|
|
2649 if (*prop == ADD_FAILED)
|
|
|
2650 *prop = NULL;
|
|
|
2651
|
|
|
2652 if (truncate_win && *prop)
|
|
|
2653 {
|
|
|
2654 Dynarr_free (*prop);
|
|
|
2655 *prop = NULL;
|
|
|
2656 }
|
|
|
2657
|
|
|
2658 extent_fragment_delete (data.ef);
|
|
|
2659
|
|
|
2660 /* #### If we started at EOB, then make sure we return a value past
|
|
|
2661 it so that regenerate_window will exit properly. This is bogus.
|
|
|
2662 The main loop should get fixed so that it isn't necessary to call
|
|
|
2663 this function if we are already at EOB. */
|
|
|
2664
|
|
|
2665 if (data.bi_bufpos == BI_BUF_ZV (b) && bi_start_pos == BI_BUF_ZV (b))
|
|
173
|
2666 return data.bi_bufpos + 1; /* Yuck! */
|
|
0
|
2667 else
|
|
|
2668 return data.bi_bufpos;
|
|
|
2669 }
|
|
|
2670
|
|
|
2671 /* Display the overlay arrow at the beginning of the given line. */
|
|
|
2672
|
|
|
2673 static int
|
|
|
2674 create_overlay_glyph_block (struct window *w, struct display_line *dl)
|
|
|
2675 {
|
|
|
2676 struct frame *f = XFRAME (w->frame);
|
|
|
2677 struct device *d = XDEVICE (f->device);
|
|
|
2678 pos_data data;
|
|
183
|
2679
|
|
0
|
2680 /* If Voverlay_arrow_string isn't valid then just fail silently. */
|
|
|
2681 if (!STRINGP (Voverlay_arrow_string) && !GLYPHP (Voverlay_arrow_string))
|
|
|
2682 return 0;
|
|
|
2683
|
|
272
|
2684 xzero (data);
|
|
0
|
2685 data.ef = NULL;
|
|
|
2686 data.d = d;
|
|
|
2687 XSETWINDOW (data.window, w);
|
|
|
2688 data.db = get_display_block_from_line (dl, OVERWRITE);
|
|
|
2689 data.dl = dl;
|
|
|
2690 data.pixpos = dl->bounds.left_in;
|
|
|
2691 data.max_pixpos = dl->bounds.right_in;
|
|
|
2692 data.cursor_type = NO_CURSOR;
|
|
|
2693 data.cursor_x = -1;
|
|
|
2694 data.findex = DEFAULT_INDEX;
|
|
|
2695 data.last_charset = Qunbound;
|
|
94
|
2696 data.last_findex = DEFAULT_INDEX;
|
|
0
|
2697 data.result_str = Qnil;
|
|
398
|
2698 data.string = Qnil;
|
|
0
|
2699
|
|
|
2700 Dynarr_reset (data.db->runes);
|
|
|
2701
|
|
|
2702 if (STRINGP (Voverlay_arrow_string))
|
|
|
2703 {
|
|
|
2704 add_bufbyte_string_runes
|
|
|
2705 (&data,
|
|
16
|
2706 XSTRING_DATA (Voverlay_arrow_string),
|
|
|
2707 XSTRING_LENGTH (Voverlay_arrow_string),
|
|
0
|
2708 1);
|
|
|
2709 }
|
|
|
2710 else if (GLYPHP (Voverlay_arrow_string))
|
|
|
2711 {
|
|
|
2712 struct glyph_block gb;
|
|
|
2713
|
|
|
2714 gb.glyph = Voverlay_arrow_string;
|
|
|
2715 gb.extent = Qnil;
|
|
|
2716 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
2717 }
|
|
|
2718
|
|
|
2719 if (data.max_pixmap_height)
|
|
|
2720 {
|
|
|
2721 int height = data.new_ascent + data.new_descent;
|
|
|
2722 int pix_ascent, pix_descent;
|
|
|
2723
|
|
|
2724 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2725 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2726
|
|
|
2727 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2728 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2729 }
|
|
|
2730
|
|
|
2731 dl->ascent = data.new_ascent;
|
|
|
2732 dl->descent = data.new_descent;
|
|
|
2733
|
|
|
2734 data.db->start_pos = dl->bounds.left_in;
|
|
|
2735 data.db->end_pos = data.pixpos;
|
|
|
2736
|
|
173
|
2737 return data.pixpos - dl->bounds.left_in;
|
|
0
|
2738 }
|
|
|
2739
|
|
|
2740 /* Add a type of glyph to a margin display block. */
|
|
|
2741
|
|
|
2742 static int
|
|
|
2743 add_margin_runes (struct display_line *dl, struct display_block *db, int start,
|
|
272
|
2744 int count, enum glyph_layout layout, int side, Lisp_Object window)
|
|
0
|
2745 {
|
|
|
2746 glyph_block_dynarr *gbd = (side == LEFT_GLYPHS
|
|
|
2747 ? dl->left_glyphs
|
|
|
2748 : dl->right_glyphs);
|
|
|
2749 int elt, end;
|
|
|
2750 int reverse;
|
|
406
|
2751 struct window *w = XWINDOW (window);
|
|
|
2752 struct frame *f = XFRAME (w->frame);
|
|
|
2753 struct device *d = XDEVICE (f->device);
|
|
|
2754 pos_data data;
|
|
|
2755
|
|
|
2756 xzero (data);
|
|
|
2757 data.d = d;
|
|
|
2758 data.window = window;
|
|
|
2759 data.db = db;
|
|
|
2760 data.dl = dl;
|
|
|
2761 data.pixpos = start;
|
|
|
2762 data.cursor_type = NO_CURSOR;
|
|
|
2763 data.cursor_x = -1;
|
|
|
2764 data.last_charset = Qunbound;
|
|
|
2765 data.last_findex = DEFAULT_INDEX;
|
|
|
2766 data.result_str = Qnil;
|
|
|
2767 data.string = Qnil;
|
|
|
2768 data.new_ascent = dl->ascent;
|
|
|
2769 data.new_descent = dl->descent;
|
|
0
|
2770
|
|
272
|
2771 if ((layout == GL_WHITESPACE && side == LEFT_GLYPHS)
|
|
|
2772 || (layout == GL_INSIDE_MARGIN && side == RIGHT_GLYPHS))
|
|
0
|
2773 {
|
|
|
2774 reverse = 1;
|
|
|
2775 elt = Dynarr_length (gbd) - 1;
|
|
|
2776 end = 0;
|
|
|
2777 }
|
|
|
2778 else
|
|
|
2779 {
|
|
|
2780 reverse = 0;
|
|
|
2781 elt = 0;
|
|
|
2782 end = Dynarr_length (gbd);
|
|
|
2783 }
|
|
|
2784
|
|
|
2785 while (count && ((!reverse && elt < end) || (reverse && elt >= end)))
|
|
|
2786 {
|
|
|
2787 struct glyph_block *gb = Dynarr_atp (gbd, elt);
|
|
|
2788
|
|
|
2789 if (NILP (gb->extent))
|
|
|
2790 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2791
|
|
|
2792 if (gb->active &&
|
|
|
2793 ((side == LEFT_GLYPHS &&
|
|
272
|
2794 extent_begin_glyph_layout (XEXTENT (gb->extent)) == layout)
|
|
0
|
2795 || (side == RIGHT_GLYPHS &&
|
|
272
|
2796 extent_end_glyph_layout (XEXTENT (gb->extent)) == layout)))
|
|
0
|
2797 {
|
|
406
|
2798 data.findex = gb->findex;
|
|
|
2799 data.max_pixpos = data.pixpos + gb->width;
|
|
|
2800 add_glyph_rune (&data, gb, side, 0, NULL);
|
|
0
|
2801 count--;
|
|
|
2802 gb->active = 0;
|
|
|
2803 }
|
|
|
2804
|
|
|
2805 (reverse ? elt-- : elt++);
|
|
|
2806 }
|
|
|
2807
|
|
406
|
2808 if (data.max_pixmap_height)
|
|
|
2809 {
|
|
|
2810 int height = data.new_ascent + data.new_descent;
|
|
|
2811 int pix_ascent, pix_descent;
|
|
|
2812
|
|
|
2813 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2814 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2815 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2816 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2817 }
|
|
|
2818
|
|
|
2819 dl->ascent = data.new_ascent;
|
|
|
2820 dl->descent = data.new_descent;
|
|
|
2821
|
|
|
2822 return data.pixpos;
|
|
0
|
2823 }
|
|
|
2824
|
|
|
2825 /* Add a blank to a margin display block. */
|
|
|
2826
|
|
|
2827 static void
|
|
|
2828 add_margin_blank (struct display_line *dl, struct display_block *db,
|
|
|
2829 struct window *w, int xpos, int width, int side)
|
|
|
2830 {
|
|
|
2831 struct rune rb;
|
|
|
2832
|
|
|
2833 rb.findex = (side == LEFT_GLYPHS
|
|
|
2834 ? get_builtin_face_cache_index (w, Vleft_margin_face)
|
|
|
2835 : get_builtin_face_cache_index (w, Vright_margin_face));
|
|
|
2836 rb.xpos = xpos;
|
|
|
2837 rb.width = width;
|
|
|
2838 rb.bufpos = -1;
|
|
|
2839 rb.endpos = 0;
|
|
|
2840 rb.type = RUNE_BLANK;
|
|
|
2841 rb.cursor_type = CURSOR_OFF;
|
|
|
2842
|
|
|
2843 Dynarr_add (db->runes, rb);
|
|
|
2844 }
|
|
|
2845
|
|
|
2846 /* Display glyphs in the left outside margin, left inside margin and
|
|
|
2847 left whitespace area. */
|
|
|
2848
|
|
|
2849 static void
|
|
|
2850 create_left_glyph_block (struct window *w, struct display_line *dl,
|
|
|
2851 int overlay_width)
|
|
|
2852 {
|
|
|
2853 Lisp_Object window;
|
|
|
2854
|
|
|
2855 int use_overflow = (NILP (w->use_left_overflow) ? 0 : 1);
|
|
|
2856 int elt, end_xpos;
|
|
|
2857 int out_end, in_out_start, in_in_end, white_out_start, white_in_start;
|
|
|
2858 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
2859 int left_in_start = dl->bounds.left_in;
|
|
|
2860 int left_in_end = dl->bounds.left_in + overlay_width;
|
|
|
2861
|
|
|
2862 struct display_block *odb, *idb;
|
|
|
2863
|
|
|
2864 XSETWINDOW (window, w);
|
|
|
2865
|
|
|
2866 /* We have to add the glyphs to the line in the order outside,
|
|
|
2867 inside, whitespace. However the precedence dictates that we
|
|
|
2868 determine how many will fit in the reverse order. */
|
|
|
2869
|
|
|
2870 /* Determine how many whitespace glyphs we can display and where
|
|
|
2871 they should start. */
|
|
|
2872 white_in_start = dl->bounds.left_white;
|
|
|
2873 white_out_start = left_in_start;
|
|
|
2874 white_out_cnt = white_in_cnt = 0;
|
|
|
2875 elt = 0;
|
|
|
2876
|
|
|
2877 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2878 {
|
|
|
2879 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2880
|
|
|
2881 if (NILP (gb->extent))
|
|
|
2882 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2883
|
|
|
2884 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
2885 {
|
|
|
2886 int width;
|
|
|
2887
|
|
398
|
2888 width = glyph_width (gb->glyph, window);
|
|
0
|
2889
|
|
|
2890 if (white_in_start - width >= left_in_end)
|
|
|
2891 {
|
|
|
2892 white_in_cnt++;
|
|
|
2893 white_in_start -= width;
|
|
|
2894 gb->width = width;
|
|
|
2895 gb->active = 1;
|
|
|
2896 }
|
|
|
2897 else if (use_overflow
|
|
|
2898 && (white_out_start - width > dl->bounds.left_out))
|
|
|
2899 {
|
|
|
2900 white_out_cnt++;
|
|
|
2901 white_out_start -= width;
|
|
|
2902 gb->width = width;
|
|
|
2903 gb->active = 1;
|
|
|
2904 }
|
|
|
2905 else
|
|
|
2906 gb->active = 0;
|
|
|
2907 }
|
|
|
2908
|
|
|
2909 elt++;
|
|
|
2910 }
|
|
|
2911
|
|
|
2912 /* Determine how many inside margin glyphs we can display and where
|
|
|
2913 they should start. The inside margin glyphs get whatever space
|
|
|
2914 is left after the whitespace glyphs have been displayed. These
|
|
|
2915 are tricky to calculate since if we decide to use the overflow
|
|
380
|
2916 area we basically have to start over. So for these we build up a
|
|
0
|
2917 list of just the inside margin glyphs and manipulate it to
|
|
|
2918 determine the needed info. */
|
|
|
2919 {
|
|
|
2920 glyph_block_dynarr *ib;
|
|
|
2921 int avail_in, avail_out;
|
|
|
2922 int done = 0;
|
|
|
2923 int marker = 0;
|
|
|
2924 int used_in, used_out;
|
|
|
2925
|
|
|
2926 elt = 0;
|
|
|
2927 used_in = used_out = 0;
|
|
185
|
2928 ib = Dynarr_new (glyph_block);
|
|
0
|
2929 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2930 {
|
|
|
2931 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2932
|
|
|
2933 if (NILP (gb->extent))
|
|
|
2934 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2935
|
|
|
2936 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
2937 GL_INSIDE_MARGIN)
|
|
|
2938 {
|
|
398
|
2939 gb->width = glyph_width (gb->glyph, window);
|
|
0
|
2940 used_in += gb->width;
|
|
|
2941 Dynarr_add (ib, *gb);
|
|
|
2942 }
|
|
|
2943
|
|
|
2944 elt++;
|
|
|
2945 }
|
|
|
2946
|
|
|
2947 if (white_out_cnt)
|
|
|
2948 avail_in = 0;
|
|
|
2949 else
|
|
|
2950 {
|
|
|
2951 avail_in = white_in_start - left_in_end;
|
|
|
2952 if (avail_in < 0)
|
|
|
2953 avail_in = 0;
|
|
|
2954 }
|
|
|
2955
|
|
|
2956 if (!use_overflow)
|
|
|
2957 avail_out = 0;
|
|
|
2958 else
|
|
|
2959 avail_out = white_out_start - dl->bounds.left_out;
|
|
|
2960
|
|
|
2961 marker = 0;
|
|
|
2962 while (!done && marker < Dynarr_length (ib))
|
|
|
2963 {
|
|
|
2964 int width = Dynarr_atp (ib, marker)->width;
|
|
|
2965
|
|
|
2966 /* If everything now fits in the available inside margin
|
|
|
2967 space, we're done. */
|
|
|
2968 if (used_in <= avail_in)
|
|
|
2969 done = 1;
|
|
|
2970 else
|
|
|
2971 {
|
|
|
2972 /* Otherwise see if we have room to move a glyph to the
|
|
|
2973 outside. */
|
|
|
2974 if (used_out + width <= avail_out)
|
|
|
2975 {
|
|
|
2976 used_out += width;
|
|
|
2977 used_in -= width;
|
|
|
2978 }
|
|
|
2979 else
|
|
|
2980 done = 1;
|
|
|
2981 }
|
|
|
2982
|
|
|
2983 if (!done)
|
|
|
2984 marker++;
|
|
|
2985 }
|
|
|
2986
|
|
|
2987 /* At this point we now know that everything from marker on goes in
|
|
|
2988 the inside margin and everything before it goes in the outside
|
|
|
2989 margin. The stuff going into the outside margin is guaranteed
|
|
|
2990 to fit, but we may have to trim some stuff from the inside. */
|
|
|
2991
|
|
|
2992 in_in_end = left_in_end;
|
|
|
2993 in_out_start = white_out_start;
|
|
|
2994 in_out_cnt = in_in_cnt = 0;
|
|
|
2995
|
|
|
2996 Dynarr_free (ib);
|
|
|
2997 elt = 0;
|
|
|
2998 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2999 {
|
|
|
3000 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3001
|
|
|
3002 if (NILP (gb->extent))
|
|
|
3003 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3004
|
|
|
3005 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3006 GL_INSIDE_MARGIN)
|
|
|
3007 {
|
|
398
|
3008 int width = glyph_width (gb->glyph, window);
|
|
0
|
3009
|
|
|
3010 if (used_out)
|
|
|
3011 {
|
|
|
3012 in_out_cnt++;
|
|
|
3013 in_out_start -= width;
|
|
|
3014 gb->width = width;
|
|
|
3015 gb->active = 1;
|
|
|
3016 used_out -= width;
|
|
|
3017 }
|
|
|
3018 else if (in_in_end + width < white_in_start)
|
|
|
3019 {
|
|
|
3020 in_in_cnt++;
|
|
|
3021 in_in_end += width;
|
|
|
3022 gb->width = width;
|
|
|
3023 gb->active = 1;
|
|
|
3024 }
|
|
|
3025 else
|
|
|
3026 gb->active = 0;
|
|
|
3027 }
|
|
|
3028
|
|
|
3029 elt++;
|
|
|
3030 }
|
|
|
3031 }
|
|
|
3032
|
|
|
3033 /* Determine how many outside margin glyphs we can display. They
|
|
|
3034 always start at the left outside margin and can only use the
|
|
|
3035 outside margin space. */
|
|
|
3036 out_end = dl->bounds.left_out;
|
|
|
3037 out_cnt = 0;
|
|
|
3038 elt = 0;
|
|
|
3039
|
|
|
3040 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3041 {
|
|
|
3042 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3043
|
|
|
3044 if (NILP (gb->extent))
|
|
380
|
3045 abort (); /* these should have been handled in add_glyph_rune */
|
|
0
|
3046
|
|
|
3047 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3048 GL_OUTSIDE_MARGIN)
|
|
|
3049 {
|
|
398
|
3050 int width = glyph_width (gb->glyph, window);
|
|
0
|
3051
|
|
|
3052 if (out_end + width <= in_out_start)
|
|
|
3053 {
|
|
|
3054 out_cnt++;
|
|
|
3055 out_end += width;
|
|
|
3056 gb->width = width;
|
|
|
3057 gb->active = 1;
|
|
|
3058 }
|
|
|
3059 else
|
|
|
3060 gb->active = 0;
|
|
|
3061 }
|
|
|
3062
|
|
|
3063 elt++;
|
|
|
3064 }
|
|
|
3065
|
|
183
|
3066 /* Now that we know where everything goes, we add the glyphs as
|
|
|
3067 runes to the appropriate display blocks. */
|
|
0
|
3068 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3069 {
|
|
|
3070 odb = get_display_block_from_line (dl, LEFT_OUTSIDE_MARGIN);
|
|
|
3071 odb->start_pos = dl->bounds.left_out;
|
|
|
3072 /* #### We should stop adding a blank to account for the space
|
|
|
3073 between the end of the glyphs and the margin and instead set
|
|
|
3074 this accordingly. */
|
|
|
3075 odb->end_pos = dl->bounds.left_in;
|
|
|
3076 Dynarr_reset (odb->runes);
|
|
|
3077 }
|
|
|
3078 else
|
|
|
3079 odb = 0;
|
|
|
3080
|
|
|
3081 if (in_in_cnt || white_in_cnt)
|
|
|
3082 {
|
|
|
3083 idb = get_display_block_from_line (dl, LEFT_INSIDE_MARGIN);
|
|
|
3084 idb->start_pos = dl->bounds.left_in;
|
|
|
3085 /* #### See above comment for odb->end_pos */
|
|
|
3086 idb->end_pos = dl->bounds.left_white;
|
|
|
3087 Dynarr_reset (idb->runes);
|
|
|
3088 }
|
|
|
3089 else
|
|
|
3090 idb = 0;
|
|
|
3091
|
|
|
3092 /* First add the outside margin glyphs. */
|
|
|
3093 if (out_cnt)
|
|
|
3094 end_xpos = add_margin_runes (dl, odb, dl->bounds.left_out, out_cnt,
|
|
|
3095 GL_OUTSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3096 else
|
|
|
3097 end_xpos = dl->bounds.left_out;
|
|
|
3098
|
|
|
3099 /* There may be blank space between the outside margin glyphs and
|
|
|
3100 the inside margin glyphs. If so, add a blank. */
|
|
|
3101 if (in_out_cnt && (in_out_start - end_xpos))
|
|
|
3102 {
|
|
|
3103 add_margin_blank (dl, odb, w, end_xpos, in_out_start - end_xpos,
|
|
|
3104 LEFT_GLYPHS);
|
|
|
3105 }
|
|
|
3106
|
|
|
3107 /* Next add the inside margin glyphs which are actually in the
|
|
|
3108 outside margin. */
|
|
|
3109 if (in_out_cnt)
|
|
|
3110 {
|
|
|
3111 end_xpos = add_margin_runes (dl, odb, in_out_start, in_out_cnt,
|
|
|
3112 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3113 }
|
|
|
3114
|
|
|
3115 /* If we didn't add any inside margin glyphs to the outside margin,
|
|
|
3116 but are adding whitespace glyphs, then we need to add a blank
|
|
|
3117 here. */
|
|
|
3118 if (!in_out_cnt && white_out_cnt && (white_out_start - end_xpos))
|
|
|
3119 {
|
|
|
3120 add_margin_blank (dl, odb, w, end_xpos, white_out_start - end_xpos,
|
|
|
3121 LEFT_GLYPHS);
|
|
|
3122 }
|
|
|
3123
|
|
|
3124 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3125 outside margin. */
|
|
|
3126 if (white_out_cnt)
|
|
|
3127 {
|
|
|
3128 end_xpos = add_margin_runes (dl, odb, white_out_start, white_out_cnt,
|
|
|
3129 GL_WHITESPACE, LEFT_GLYPHS, window);
|
|
|
3130 }
|
|
|
3131
|
|
|
3132 /* We take care of clearing between the end of the glyphs and the
|
|
|
3133 start of the inside margin for lines which have glyphs. */
|
|
|
3134 if (odb && (left_in_start - end_xpos))
|
|
|
3135 {
|
|
|
3136 add_margin_blank (dl, odb, w, end_xpos, left_in_start - end_xpos,
|
|
|
3137 LEFT_GLYPHS);
|
|
|
3138 }
|
|
|
3139
|
|
|
3140 /* Next add the inside margin glyphs which are actually in the
|
|
|
3141 inside margin. */
|
|
|
3142 if (in_in_cnt)
|
|
|
3143 {
|
|
|
3144 end_xpos = add_margin_runes (dl, idb, left_in_end, in_in_cnt,
|
|
|
3145 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3146 }
|
|
|
3147 else
|
|
|
3148 end_xpos = left_in_end;
|
|
|
3149
|
|
|
3150 /* Make sure that the area between the end of the inside margin
|
|
|
3151 glyphs and the whitespace glyphs is cleared. */
|
|
|
3152 if (idb && (white_in_start - end_xpos > 0))
|
|
|
3153 {
|
|
|
3154 add_margin_blank (dl, idb, w, end_xpos, white_in_start - end_xpos,
|
|
|
3155 LEFT_GLYPHS);
|
|
|
3156 }
|
|
|
3157
|
|
|
3158 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3159 inside margin. */
|
|
|
3160 if (white_in_cnt)
|
|
|
3161 {
|
|
|
3162 add_margin_runes (dl, idb, white_in_start, white_in_cnt, GL_WHITESPACE,
|
|
|
3163 LEFT_GLYPHS, window);
|
|
|
3164 }
|
|
|
3165
|
|
|
3166 /* Whitespace glyphs always end right next to the text block so
|
|
|
3167 there is nothing we have to make sure is cleared after them. */
|
|
|
3168 }
|
|
|
3169
|
|
|
3170 /* Display glyphs in the right outside margin, right inside margin and
|
|
|
3171 right whitespace area. */
|
|
|
3172
|
|
|
3173 static void
|
|
|
3174 create_right_glyph_block (struct window *w, struct display_line *dl)
|
|
|
3175 {
|
|
|
3176 Lisp_Object window;
|
|
|
3177
|
|
|
3178 int use_overflow = (NILP (w->use_right_overflow) ? 0 : 1);
|
|
|
3179 int elt, end_xpos;
|
|
|
3180 int out_start, in_out_end, in_in_start, white_out_end, white_in_end;
|
|
|
3181 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
3182
|
|
|
3183 struct display_block *odb, *idb;
|
|
|
3184
|
|
|
3185 XSETWINDOW (window, w);
|
|
|
3186
|
|
|
3187 /* We have to add the glyphs to the line in the order outside,
|
|
|
3188 inside, whitespace. However the precedence dictates that we
|
|
|
3189 determine how many will fit in the reverse order. */
|
|
|
3190
|
|
|
3191 /* Determine how many whitespace glyphs we can display and where
|
|
|
3192 they should start. */
|
|
|
3193 white_in_end = dl->bounds.right_white;
|
|
|
3194 white_out_end = dl->bounds.right_in;
|
|
|
3195 white_out_cnt = white_in_cnt = 0;
|
|
|
3196 elt = 0;
|
|
|
3197
|
|
|
3198 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3199 {
|
|
|
3200 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3201
|
|
|
3202 if (NILP (gb->extent))
|
|
|
3203 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3204
|
|
|
3205 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
3206 {
|
|
398
|
3207 int width = glyph_width (gb->glyph, window);
|
|
0
|
3208
|
|
|
3209 if (white_in_end + width <= dl->bounds.right_in)
|
|
|
3210 {
|
|
|
3211 white_in_cnt++;
|
|
|
3212 white_in_end += width;
|
|
|
3213 gb->width = width;
|
|
|
3214 gb->active = 1;
|
|
|
3215 }
|
|
|
3216 else if (use_overflow
|
|
|
3217 && (white_out_end + width <= dl->bounds.right_out))
|
|
|
3218 {
|
|
|
3219 white_out_cnt++;
|
|
|
3220 white_out_end += width;
|
|
|
3221 gb->width = width;
|
|
|
3222 gb->active = 1;
|
|
|
3223 }
|
|
|
3224 else
|
|
|
3225 gb->active = 0;
|
|
|
3226 }
|
|
|
3227
|
|
|
3228 elt++;
|
|
|
3229 }
|
|
|
3230
|
|
|
3231 /* Determine how many inside margin glyphs we can display and where
|
|
|
3232 they should start. The inside margin glyphs get whatever space
|
|
|
3233 is left after the whitespace glyphs have been displayed. These
|
|
|
3234 are tricky to calculate since if we decide to use the overflow
|
|
380
|
3235 area we basically have to start over. So for these we build up a
|
|
0
|
3236 list of just the inside margin glyphs and manipulate it to
|
|
|
3237 determine the needed info. */
|
|
|
3238 {
|
|
|
3239 glyph_block_dynarr *ib;
|
|
|
3240 int avail_in, avail_out;
|
|
|
3241 int done = 0;
|
|
|
3242 int marker = 0;
|
|
|
3243 int used_in, used_out;
|
|
|
3244
|
|
|
3245 elt = 0;
|
|
|
3246 used_in = used_out = 0;
|
|
185
|
3247 ib = Dynarr_new (glyph_block);
|
|
0
|
3248 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3249 {
|
|
|
3250 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3251
|
|
|
3252 if (NILP (gb->extent))
|
|
|
3253 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3254
|
|
|
3255 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3256 {
|
|
398
|
3257 gb->width = glyph_width (gb->glyph, window);
|
|
0
|
3258 used_in += gb->width;
|
|
|
3259 Dynarr_add (ib, *gb);
|
|
|
3260 }
|
|
|
3261
|
|
|
3262 elt++;
|
|
|
3263 }
|
|
|
3264
|
|
|
3265 if (white_out_cnt)
|
|
|
3266 avail_in = 0;
|
|
|
3267 else
|
|
|
3268 avail_in = dl->bounds.right_in - white_in_end;
|
|
|
3269
|
|
|
3270 if (!use_overflow)
|
|
|
3271 avail_out = 0;
|
|
|
3272 else
|
|
|
3273 avail_out = dl->bounds.right_out - white_out_end;
|
|
|
3274
|
|
|
3275 marker = 0;
|
|
|
3276 while (!done && marker < Dynarr_length (ib))
|
|
|
3277 {
|
|
|
3278 int width = Dynarr_atp (ib, marker)->width;
|
|
|
3279
|
|
|
3280 /* If everything now fits in the available inside margin
|
|
|
3281 space, we're done. */
|
|
|
3282 if (used_in <= avail_in)
|
|
|
3283 done = 1;
|
|
|
3284 else
|
|
|
3285 {
|
|
|
3286 /* Otherwise see if we have room to move a glyph to the
|
|
|
3287 outside. */
|
|
|
3288 if (used_out + width <= avail_out)
|
|
|
3289 {
|
|
|
3290 used_out += width;
|
|
|
3291 used_in -= width;
|
|
|
3292 }
|
|
|
3293 else
|
|
|
3294 done = 1;
|
|
|
3295 }
|
|
|
3296
|
|
|
3297 if (!done)
|
|
|
3298 marker++;
|
|
|
3299 }
|
|
|
3300
|
|
|
3301 /* At this point we now know that everything from marker on goes in
|
|
|
3302 the inside margin and everything before it goes in the outside
|
|
|
3303 margin. The stuff going into the outside margin is guaranteed
|
|
|
3304 to fit, but we may have to trim some stuff from the inside. */
|
|
|
3305
|
|
|
3306 in_in_start = dl->bounds.right_in;
|
|
|
3307 in_out_end = dl->bounds.right_in;
|
|
|
3308 in_out_cnt = in_in_cnt = 0;
|
|
|
3309
|
|
|
3310 Dynarr_free (ib);
|
|
|
3311 elt = 0;
|
|
|
3312 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3313 {
|
|
|
3314 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3315
|
|
|
3316 if (NILP (gb->extent))
|
|
|
3317 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3318
|
|
|
3319 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3320 {
|
|
398
|
3321 int width = glyph_width (gb->glyph, window);
|
|
0
|
3322
|
|
|
3323 if (used_out)
|
|
|
3324 {
|
|
|
3325 in_out_cnt++;
|
|
|
3326 in_out_end += width;
|
|
|
3327 gb->width = width;
|
|
|
3328 gb->active = 1;
|
|
|
3329 used_out -= width;
|
|
|
3330 }
|
|
|
3331 else if (in_in_start - width >= white_in_end)
|
|
|
3332 {
|
|
|
3333 in_in_cnt++;
|
|
|
3334 in_in_start -= width;
|
|
|
3335 gb->width = width;
|
|
|
3336 gb->active = 1;
|
|
|
3337 }
|
|
|
3338 else
|
|
|
3339 gb->active = 0;
|
|
|
3340 }
|
|
|
3341
|
|
|
3342 elt++;
|
|
|
3343 }
|
|
|
3344 }
|
|
|
3345
|
|
|
3346 /* Determine how many outside margin glyphs we can display. They
|
|
|
3347 always start at the right outside margin and can only use the
|
|
|
3348 outside margin space. */
|
|
|
3349 out_start = dl->bounds.right_out;
|
|
|
3350 out_cnt = 0;
|
|
|
3351 elt = 0;
|
|
|
3352
|
|
|
3353 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3354 {
|
|
|
3355 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3356
|
|
|
3357 if (NILP (gb->extent))
|
|
380
|
3358 abort (); /* these should have been handled in add_glyph_rune */
|
|
0
|
3359
|
|
|
3360 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_OUTSIDE_MARGIN)
|
|
|
3361 {
|
|
398
|
3362 int width = glyph_width (gb->glyph, window);
|
|
0
|
3363
|
|
|
3364 if (out_start - width >= in_out_end)
|
|
|
3365 {
|
|
|
3366 out_cnt++;
|
|
|
3367 out_start -= width;
|
|
|
3368 gb->width = width;
|
|
|
3369 gb->active = 1;
|
|
|
3370 }
|
|
|
3371 else
|
|
|
3372 gb->active = 0;
|
|
|
3373 }
|
|
|
3374
|
|
|
3375 elt++;
|
|
|
3376 }
|
|
|
3377
|
|
|
3378 /* Now that we now where everything goes, we add the glyphs as runes
|
|
|
3379 to the appropriate display blocks. */
|
|
|
3380 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3381 {
|
|
|
3382 odb = get_display_block_from_line (dl, RIGHT_OUTSIDE_MARGIN);
|
|
|
3383 /* #### See comments before odb->start_pos init in
|
|
|
3384 create_left_glyph_block */
|
|
|
3385 odb->start_pos = dl->bounds.right_in;
|
|
|
3386 odb->end_pos = dl->bounds.right_out;
|
|
|
3387 Dynarr_reset (odb->runes);
|
|
|
3388 }
|
|
|
3389 else
|
|
|
3390 odb = 0;
|
|
|
3391
|
|
|
3392 if (in_in_cnt || white_in_cnt)
|
|
|
3393 {
|
|
|
3394 idb = get_display_block_from_line (dl, RIGHT_INSIDE_MARGIN);
|
|
|
3395 idb->start_pos = dl->bounds.right_white;
|
|
|
3396 /* #### See comments before odb->start_pos init in
|
|
|
3397 create_left_glyph_block */
|
|
|
3398 idb->end_pos = dl->bounds.right_in;
|
|
|
3399 Dynarr_reset (idb->runes);
|
|
|
3400 }
|
|
|
3401 else
|
|
|
3402 idb = 0;
|
|
|
3403
|
|
|
3404 /* First add the whitespace margin glyphs which are actually in the
|
|
|
3405 inside margin. */
|
|
|
3406 if (white_in_cnt)
|
|
|
3407 {
|
|
|
3408 end_xpos = add_margin_runes (dl, idb, dl->bounds.right_white,
|
|
|
3409 white_in_cnt, GL_WHITESPACE, RIGHT_GLYPHS,
|
|
|
3410 window);
|
|
|
3411 }
|
|
|
3412 else
|
|
|
3413 end_xpos = dl->bounds.right_white;
|
|
|
3414
|
|
|
3415 /* Make sure that the area between the end of the whitespace glyphs
|
|
|
3416 and the inside margin glyphs is cleared. */
|
|
|
3417 if (in_in_cnt && (in_in_start - end_xpos))
|
|
|
3418 {
|
|
|
3419 add_margin_blank (dl, idb, w, end_xpos, in_in_start - end_xpos,
|
|
|
3420 RIGHT_GLYPHS);
|
|
|
3421 }
|
|
|
3422
|
|
|
3423 /* Next add the inside margin glyphs which are actually in the
|
|
|
3424 inside margin. */
|
|
|
3425 if (in_in_cnt)
|
|
|
3426 {
|
|
|
3427 end_xpos = add_margin_runes (dl, idb, in_in_start, in_in_cnt,
|
|
|
3428 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3429 }
|
|
|
3430
|
|
|
3431 /* If we didn't add any inside margin glyphs then make sure the rest
|
|
|
3432 of the inside margin area gets cleared. */
|
|
|
3433 if (idb && (dl->bounds.right_in - end_xpos))
|
|
|
3434 {
|
|
|
3435 add_margin_blank (dl, idb, w, end_xpos, dl->bounds.right_in - end_xpos,
|
|
|
3436 RIGHT_GLYPHS);
|
|
|
3437 }
|
|
|
3438
|
|
|
3439 /* Next add any whitespace glyphs in the outside margin. */
|
|
|
3440 if (white_out_cnt)
|
|
|
3441 {
|
|
|
3442 end_xpos = add_margin_runes (dl, odb, dl->bounds.right_in, white_out_cnt,
|
|
|
3443 GL_WHITESPACE, RIGHT_GLYPHS, window);
|
|
|
3444 }
|
|
|
3445 else
|
|
|
3446 end_xpos = dl->bounds.right_in;
|
|
|
3447
|
|
|
3448 /* Next add any inside margin glyphs in the outside margin. */
|
|
|
3449 if (in_out_cnt)
|
|
|
3450 {
|
|
|
3451 end_xpos = add_margin_runes (dl, odb, end_xpos, in_out_cnt,
|
|
|
3452 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3453 }
|
|
|
3454
|
|
|
3455 /* There may be space between any whitespace or inside margin glyphs
|
|
|
3456 in the outside margin and the actual outside margin glyphs. */
|
|
|
3457 if (odb && (out_start - end_xpos))
|
|
|
3458 {
|
|
|
3459 add_margin_blank (dl, odb, w, end_xpos, out_start - end_xpos,
|
|
|
3460 RIGHT_GLYPHS);
|
|
|
3461 }
|
|
|
3462
|
|
|
3463 /* Finally, add the outside margin glyphs. */
|
|
|
3464 if (out_cnt)
|
|
|
3465 {
|
|
|
3466 add_margin_runes (dl, odb, out_start, out_cnt, GL_OUTSIDE_MARGIN,
|
|
|
3467 RIGHT_GLYPHS, window);
|
|
|
3468 }
|
|
|
3469 }
|
|
|
3470
|
|
|
3471
|
|
|
3472 /***************************************************************************/
|
|
|
3473 /* */
|
|
|
3474 /* modeline routines */
|
|
|
3475 /* */
|
|
|
3476 /***************************************************************************/
|
|
|
3477
|
|
398
|
3478 /* This function is also used in frame.c by `generate_title_string' */
|
|
|
3479 void
|
|
265
|
3480 generate_formatted_string_db (Lisp_Object format_str, Lisp_Object result_str,
|
|
|
3481 struct window *w, struct display_line *dl,
|
|
|
3482 struct display_block *db, face_index findex,
|
|
|
3483 int min_pixpos, int max_pixpos, int type)
|
|
|
3484 {
|
|
|
3485 struct frame *f = XFRAME (w->frame);
|
|
|
3486 struct device *d = XDEVICE (f->device);
|
|
|
3487
|
|
|
3488 pos_data data;
|
|
|
3489 int c_pixpos;
|
|
398
|
3490 Charcount offset = 0;
|
|
265
|
3491
|
|
272
|
3492 xzero (data);
|
|
265
|
3493 data.d = d;
|
|
|
3494 data.db = db;
|
|
|
3495 data.dl = dl;
|
|
|
3496 data.findex = findex;
|
|
|
3497 data.pixpos = min_pixpos;
|
|
|
3498 data.max_pixpos = max_pixpos;
|
|
|
3499 data.cursor_type = NO_CURSOR;
|
|
|
3500 data.last_charset = Qunbound;
|
|
|
3501 data.last_findex = DEFAULT_INDEX;
|
|
|
3502 data.result_str = result_str;
|
|
|
3503 data.is_modeline = 1;
|
|
398
|
3504 data.string = Qnil;
|
|
265
|
3505 XSETWINDOW (data.window, w);
|
|
|
3506
|
|
|
3507 Dynarr_reset (formatted_string_extent_dynarr);
|
|
|
3508 Dynarr_reset (formatted_string_extent_start_dynarr);
|
|
|
3509 Dynarr_reset (formatted_string_extent_end_dynarr);
|
|
|
3510
|
|
398
|
3511 /* result_str is nil when we're building a frame or icon title. Otherwise,
|
|
|
3512 we're building a modeline, so the offset starts at the modeline
|
|
|
3513 horizontal scrolling ammount */
|
|
|
3514 if (! NILP (result_str))
|
|
|
3515 offset = w->modeline_hscroll;
|
|
265
|
3516 generate_fstring_runes (w, &data, 0, 0, -1, format_str, 0,
|
|
398
|
3517 max_pixpos - min_pixpos, findex, type, &offset,
|
|
|
3518 Qnil);
|
|
265
|
3519
|
|
|
3520 if (Dynarr_length (db->runes))
|
|
|
3521 {
|
|
|
3522 struct rune *rb =
|
|
|
3523 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
3524 c_pixpos = rb->xpos + rb->width;
|
|
|
3525 }
|
|
|
3526 else
|
|
|
3527 c_pixpos = min_pixpos;
|
|
|
3528
|
|
|
3529 /* If we don't reach the right side of the window, add a blank rune
|
|
|
3530 to make up the difference. This usually only occurs if the
|
|
|
3531 modeline face is using a proportional width font or a fixed width
|
|
|
3532 font of a different size from the default face font. */
|
|
|
3533
|
|
|
3534 if (c_pixpos < max_pixpos)
|
|
|
3535 {
|
|
|
3536 data.pixpos = c_pixpos;
|
|
|
3537 data.blank_width = max_pixpos - data.pixpos;
|
|
|
3538
|
|
|
3539 add_blank_rune (&data, NULL, 0);
|
|
|
3540 }
|
|
|
3541
|
|
|
3542 /* Now create the result string and frob the extents into it. */
|
|
|
3543 if (!NILP (result_str))
|
|
|
3544 {
|
|
|
3545 int elt;
|
|
|
3546 Bytecount len;
|
|
|
3547 Bufbyte *strdata;
|
|
|
3548 struct buffer *buf = XBUFFER (WINDOW_BUFFER (w));
|
|
|
3549
|
|
406
|
3550 in_modeline_generation = 1;
|
|
|
3551
|
|
265
|
3552 detach_all_extents (result_str);
|
|
|
3553 resize_string (XSTRING (result_str), -1,
|
|
|
3554 data.bytepos - XSTRING_LENGTH (result_str));
|
|
|
3555
|
|
|
3556 strdata = XSTRING_DATA (result_str);
|
|
|
3557
|
|
|
3558 for (elt = 0, len = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
3559 {
|
|
|
3560 if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
|
|
|
3561 {
|
|
|
3562 len += (set_charptr_emchar
|
|
|
3563 (strdata + len, Dynarr_atp (db->runes,
|
|
|
3564 elt)->object.chr.ch));
|
|
|
3565 }
|
|
|
3566 }
|
|
|
3567
|
|
|
3568 for (elt = 0; elt < Dynarr_length (formatted_string_extent_dynarr);
|
|
|
3569 elt++)
|
|
|
3570 {
|
|
|
3571 Lisp_Object extent = Qnil;
|
|
|
3572 Lisp_Object child;
|
|
|
3573
|
|
|
3574 XSETEXTENT (extent, Dynarr_at (formatted_string_extent_dynarr, elt));
|
|
|
3575 child = Fgethash (extent, buf->modeline_extent_table, Qnil);
|
|
|
3576 if (NILP (child))
|
|
|
3577 {
|
|
|
3578 child = Fmake_extent (Qnil, Qnil, result_str);
|
|
|
3579 Fputhash (extent, child, buf->modeline_extent_table);
|
|
|
3580 }
|
|
|
3581 Fset_extent_parent (child, extent);
|
|
|
3582 set_extent_endpoints
|
|
|
3583 (XEXTENT (child),
|
|
|
3584 Dynarr_at (formatted_string_extent_start_dynarr, elt),
|
|
|
3585 Dynarr_at (formatted_string_extent_end_dynarr, elt),
|
|
|
3586 result_str);
|
|
|
3587 }
|
|
406
|
3588
|
|
|
3589 in_modeline_generation = 0;
|
|
265
|
3590 }
|
|
|
3591 }
|
|
|
3592
|
|
398
|
3593 /* Ensure that the given display line DL accurately represents the
|
|
|
3594 modeline for the given window. */
|
|
|
3595 static void
|
|
|
3596 generate_modeline (struct window *w, struct display_line *dl, int type)
|
|
|
3597 {
|
|
|
3598 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3599 struct frame *f = XFRAME (w->frame);
|
|
|
3600 struct device *d = XDEVICE (f->device);
|
|
|
3601
|
|
|
3602 /* Unlike display line and rune pointers, this one can't change underneath
|
|
|
3603 our feet. */
|
|
|
3604 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
3605 int max_pixpos, min_pixpos, ypos_adj;
|
|
|
3606 Lisp_Object font_inst;
|
|
|
3607
|
|
|
3608 /* This will actually determine incorrect inside boundaries for the
|
|
|
3609 modeline since it ignores the margins. However being aware of this fact
|
|
|
3610 we never use those values anywhere so it doesn't matter. */
|
|
|
3611 dl->bounds = calculate_display_line_boundaries (w, 1);
|
|
|
3612
|
|
|
3613 /* We are generating a modeline. */
|
|
|
3614 dl->modeline = 1;
|
|
|
3615 dl->cursor_elt = -1;
|
|
|
3616
|
|
|
3617 /* Reset the runes on the modeline. */
|
|
|
3618 Dynarr_reset (db->runes);
|
|
|
3619
|
|
|
3620 if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
3621 {
|
|
|
3622 struct rune rb;
|
|
|
3623
|
|
|
3624 /* If there is a horizontal scrollbar, don't add anything. */
|
|
|
3625 if (window_scrollbar_height (w))
|
|
|
3626 return;
|
|
|
3627
|
|
|
3628 dl->ascent = DEVMETH (d, divider_height, ());
|
|
|
3629 dl->descent = 0;
|
|
|
3630 /* The modeline is at the bottom of the gutters. */
|
|
|
3631 dl->ypos = WINDOW_BOTTOM (w);
|
|
|
3632
|
|
|
3633 rb.findex = MODELINE_INDEX;
|
|
|
3634 rb.xpos = dl->bounds.left_out;
|
|
|
3635 rb.width = dl->bounds.right_out - dl->bounds.left_out;
|
|
|
3636 rb.bufpos = 0;
|
|
|
3637 rb.endpos = 0;
|
|
|
3638 rb.type = RUNE_HLINE;
|
|
|
3639 rb.object.hline.thickness = 1;
|
|
|
3640 rb.object.hline.yoffset = 0;
|
|
|
3641 rb.cursor_type = NO_CURSOR;
|
|
|
3642
|
|
|
3643 if (!EQ (Qzero, w->modeline_shadow_thickness)
|
|
|
3644 && FRAME_WIN_P (f))
|
|
|
3645 {
|
|
|
3646 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3647
|
|
|
3648 dl->ypos -= shadow_thickness;
|
|
|
3649 rb.xpos += shadow_thickness;
|
|
|
3650 rb.width -= 2 * shadow_thickness;
|
|
|
3651 }
|
|
|
3652
|
|
|
3653 Dynarr_add (db->runes, rb);
|
|
|
3654 return;
|
|
|
3655 }
|
|
|
3656
|
|
|
3657 /* !!#### not right; needs to compute the max height of
|
|
|
3658 all the charsets */
|
|
|
3659 font_inst = WINDOW_FACE_CACHEL_FONT (w, MODELINE_INDEX, Vcharset_ascii);
|
|
|
3660
|
|
|
3661 dl->ascent = XFONT_INSTANCE (font_inst)->ascent;
|
|
|
3662 dl->descent = XFONT_INSTANCE (font_inst)->descent;
|
|
|
3663
|
|
|
3664 min_pixpos = dl->bounds.left_out;
|
|
|
3665 max_pixpos = dl->bounds.right_out;
|
|
|
3666
|
|
|
3667 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
3668 {
|
|
|
3669 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3670
|
|
|
3671 ypos_adj = shadow_thickness;
|
|
|
3672 min_pixpos += shadow_thickness;
|
|
|
3673 max_pixpos -= shadow_thickness;
|
|
|
3674 }
|
|
|
3675 else
|
|
|
3676 ypos_adj = 0;
|
|
|
3677
|
|
|
3678 generate_formatted_string_db (b->modeline_format,
|
|
|
3679 b->generated_modeline_string, w, dl, db,
|
|
|
3680 MODELINE_INDEX, min_pixpos, max_pixpos, type);
|
|
|
3681
|
|
|
3682 /* The modeline is at the bottom of the gutters. We have to wait to
|
|
|
3683 set this until we've generated the modeline in order to account
|
|
|
3684 for any embedded faces. */
|
|
|
3685 dl->ypos = WINDOW_BOTTOM (w) - dl->descent - ypos_adj;
|
|
|
3686 }
|
|
|
3687
|
|
265
|
3688 static Charcount
|
|
398
|
3689 add_string_to_fstring_db_runes (pos_data *data, const Bufbyte *str,
|
|
265
|
3690 Charcount pos, Charcount min_pos, Charcount max_pos)
|
|
|
3691 {
|
|
|
3692 /* This function has been Mule-ized. */
|
|
|
3693 Charcount end;
|
|
398
|
3694 const Bufbyte *cur_pos = str;
|
|
265
|
3695 struct display_block *db = data->db;
|
|
|
3696
|
|
|
3697 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3698 while (Dynarr_length (db->runes) < pos)
|
|
|
3699 add_blank_rune (data, NULL, 0);
|
|
|
3700
|
|
|
3701 end = (Dynarr_length (db->runes) +
|
|
398
|
3702 bytecount_to_charcount (str, strlen ((const char *) str)));
|
|
265
|
3703 if (max_pos != -1)
|
|
|
3704 end = min (max_pos, end);
|
|
|
3705
|
|
|
3706 while (pos < end && *cur_pos)
|
|
|
3707 {
|
|
398
|
3708 const Bufbyte *old_cur_pos = cur_pos;
|
|
265
|
3709 int succeeded;
|
|
|
3710
|
|
|
3711 data->ch = charptr_emchar (cur_pos);
|
|
|
3712 succeeded = (add_emchar_rune (data) != ADD_FAILED);
|
|
|
3713 INC_CHARPTR (cur_pos);
|
|
|
3714 if (succeeded)
|
|
|
3715 {
|
|
|
3716 pos++;
|
|
|
3717 data->modeline_charpos++;
|
|
|
3718 data->bytepos += cur_pos - old_cur_pos;
|
|
|
3719 }
|
|
|
3720 }
|
|
|
3721
|
|
|
3722 while (Dynarr_length (db->runes) < min_pos &&
|
|
|
3723 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3724 add_blank_rune (data, NULL, 0);
|
|
|
3725
|
|
|
3726 return Dynarr_length (db->runes);
|
|
|
3727 }
|
|
|
3728
|
|
|
3729 /* #### Urk! Should also handle begin-glyphs and end-glyphs in
|
|
|
3730 modeline extents. */
|
|
|
3731 static Charcount
|
|
|
3732 add_glyph_to_fstring_db_runes (pos_data *data, Lisp_Object glyph,
|
|
398
|
3733 Charcount pos, Charcount min_pos,
|
|
|
3734 Charcount max_pos, Lisp_Object extent)
|
|
265
|
3735 {
|
|
|
3736 /* This function has been Mule-ized. */
|
|
|
3737 Charcount end;
|
|
|
3738 struct display_block *db = data->db;
|
|
|
3739 struct glyph_block gb;
|
|
|
3740
|
|
|
3741 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3742 while (Dynarr_length (db->runes) < pos)
|
|
|
3743 add_blank_rune (data, NULL, 0);
|
|
|
3744
|
|
|
3745 end = Dynarr_length (db->runes) + 1;
|
|
|
3746 if (max_pos != -1)
|
|
|
3747 end = min (max_pos, end);
|
|
|
3748
|
|
|
3749 gb.glyph = glyph;
|
|
398
|
3750 gb.extent = extent;
|
|
265
|
3751 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
3752 pos++;
|
|
|
3753
|
|
|
3754 while (Dynarr_length (db->runes) < pos &&
|
|
|
3755 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3756 add_blank_rune (data, NULL, 0);
|
|
|
3757
|
|
|
3758 return Dynarr_length (db->runes);
|
|
|
3759 }
|
|
|
3760
|
|
|
3761 /* If max_pos is == -1, it is considered to be infinite. The same is
|
|
|
3762 true of max_pixsize. */
|
|
|
3763 #define SET_CURRENT_MODE_CHARS_PIXSIZE \
|
|
|
3764 if (Dynarr_length (data->db->runes)) \
|
|
|
3765 cur_pixsize = data->pixpos - Dynarr_atp (data->db->runes, 0)->xpos; \
|
|
|
3766 else \
|
|
|
3767 cur_pixsize = 0;
|
|
|
3768
|
|
|
3769 /* Note that this function does "positions" in terms of characters and
|
|
|
3770 not in terms of columns. This is necessary to make the formatting
|
|
|
3771 work correctly when proportional width fonts are used in the
|
|
|
3772 modeline. */
|
|
|
3773 static Charcount
|
|
|
3774 generate_fstring_runes (struct window *w, pos_data *data, Charcount pos,
|
|
|
3775 Charcount min_pos, Charcount max_pos,
|
|
|
3776 Lisp_Object elt, int depth, int max_pixsize,
|
|
398
|
3777 face_index findex, int type, Charcount *offset,
|
|
|
3778 Lisp_Object cur_ext)
|
|
265
|
3779 {
|
|
|
3780 /* This function has been Mule-ized. */
|
|
|
3781 /* #### The other losing things in this function are:
|
|
|
3782
|
|
|
3783 -- C zero-terminated-string lossage.
|
|
|
3784 -- Non-printable characters should be converted into something
|
|
|
3785 appropriate (e.g. ^F) instead of blindly being printed anyway.
|
|
|
3786 */
|
|
|
3787
|
|
|
3788 tail_recurse:
|
|
|
3789 if (depth > 10)
|
|
|
3790 goto invalid;
|
|
|
3791
|
|
|
3792 depth++;
|
|
|
3793
|
|
|
3794 if (STRINGP (elt))
|
|
|
3795 {
|
|
|
3796 /* A string. Add to the display line and check for %-constructs
|
|
|
3797 within it. */
|
|
|
3798
|
|
|
3799 Bufbyte *this = XSTRING_DATA (elt);
|
|
|
3800
|
|
|
3801 while ((pos < max_pos || max_pos == -1) && *this)
|
|
|
3802 {
|
|
|
3803 Bufbyte *last = this;
|
|
|
3804
|
|
|
3805 while (*this && *this != '%')
|
|
|
3806 this++;
|
|
|
3807
|
|
|
3808 if (this != last)
|
|
|
3809 {
|
|
398
|
3810 /* No %-construct */
|
|
265
|
3811 Charcount size =
|
|
398
|
3812 bytecount_to_charcount (last, this - last);
|
|
|
3813
|
|
|
3814 if (size <= *offset)
|
|
|
3815 *offset -= size;
|
|
|
3816 else
|
|
|
3817 {
|
|
|
3818 Charcount tmp_max = (max_pos == -1 ? pos + size - *offset :
|
|
|
3819 min (pos + size - *offset, max_pos));
|
|
|
3820 const Bufbyte *tmp_last = charptr_n_addr (last, *offset);
|
|
|
3821
|
|
|
3822 pos = add_string_to_fstring_db_runes (data, tmp_last,
|
|
|
3823 pos, pos, tmp_max);
|
|
|
3824 *offset = 0;
|
|
|
3825 }
|
|
265
|
3826 }
|
|
|
3827 else /* *this == '%' */
|
|
|
3828 {
|
|
|
3829 Charcount spec_width = 0;
|
|
|
3830
|
|
|
3831 this++; /* skip over '%' */
|
|
|
3832
|
|
|
3833 /* We can't allow -ve args due to the "%-" construct.
|
|
|
3834 * Argument specifies minwidth but not maxwidth
|
|
|
3835 * (maxwidth can be specified by
|
|
|
3836 * (<negative-number> . <stuff>) modeline elements)
|
|
|
3837 */
|
|
|
3838 while (isdigit (*this))
|
|
|
3839 {
|
|
|
3840 spec_width = spec_width * 10 + (*this - '0');
|
|
|
3841 this++;
|
|
|
3842 }
|
|
|
3843 spec_width += pos;
|
|
|
3844
|
|
|
3845 if (*this == 'M')
|
|
|
3846 {
|
|
|
3847 pos = generate_fstring_runes (w, data, pos, spec_width,
|
|
|
3848 max_pos, Vglobal_mode_string,
|
|
|
3849 depth, max_pixsize, findex,
|
|
398
|
3850 type, offset, cur_ext);
|
|
265
|
3851 }
|
|
|
3852 else if (*this == '-')
|
|
|
3853 {
|
|
|
3854 Charcount num_to_add;
|
|
|
3855
|
|
|
3856 if (max_pixsize < 0)
|
|
|
3857 num_to_add = 0;
|
|
|
3858 else if (max_pos != -1)
|
|
|
3859 num_to_add = max_pos - pos;
|
|
|
3860 else
|
|
|
3861 {
|
|
|
3862 int cur_pixsize;
|
|
|
3863 int dash_pixsize;
|
|
|
3864 Bufbyte ch = '-';
|
|
|
3865 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3866
|
|
|
3867 dash_pixsize =
|
|
|
3868 redisplay_text_width_string (w, findex, &ch, Qnil, 0,
|
|
|
3869 1);
|
|
|
3870
|
|
|
3871 num_to_add = (max_pixsize - cur_pixsize) / dash_pixsize;
|
|
|
3872 num_to_add++;
|
|
|
3873 }
|
|
|
3874
|
|
|
3875 while (num_to_add--)
|
|
|
3876 pos = add_string_to_fstring_db_runes
|
|
398
|
3877 (data, (const Bufbyte *) "-", pos, pos, max_pos);
|
|
265
|
3878 }
|
|
|
3879 else if (*this != 0)
|
|
|
3880 {
|
|
398
|
3881 Emchar ch = charptr_emchar (this);
|
|
265
|
3882 Bufbyte *str;
|
|
398
|
3883 Charcount size;
|
|
|
3884
|
|
265
|
3885 decode_mode_spec (w, ch, type);
|
|
|
3886
|
|
|
3887 str = Dynarr_atp (mode_spec_bufbyte_string, 0);
|
|
398
|
3888 size = bytecount_to_charcount
|
|
|
3889 /* Skip the null character added by `decode_mode_spec' */
|
|
|
3890 (str, Dynarr_length (mode_spec_bufbyte_string)) - 1;
|
|
|
3891
|
|
|
3892 if (size <= *offset)
|
|
|
3893 *offset -= size;
|
|
|
3894 else
|
|
|
3895 {
|
|
|
3896 const Bufbyte *tmp_str = charptr_n_addr (str, *offset);
|
|
|
3897
|
|
|
3898 /* #### NOTE: I don't understand why a tmp_max is not
|
|
|
3899 computed and used here as in the plain string case
|
|
|
3900 above. -- dv */
|
|
|
3901 pos = add_string_to_fstring_db_runes (data, tmp_str,
|
|
|
3902 pos, pos,
|
|
|
3903 max_pos);
|
|
|
3904 *offset = 0;
|
|
|
3905 }
|
|
265
|
3906 }
|
|
|
3907
|
|
|
3908 /* NOT this++. There could be any sort of character at
|
|
|
3909 the current position. */
|
|
|
3910 INC_CHARPTR (this);
|
|
|
3911 }
|
|
|
3912
|
|
|
3913 if (max_pixsize > 0)
|
|
|
3914 {
|
|
|
3915 int cur_pixsize;
|
|
|
3916 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3917
|
|
|
3918 if (cur_pixsize >= max_pixsize)
|
|
|
3919 break;
|
|
|
3920 }
|
|
|
3921 }
|
|
|
3922 }
|
|
|
3923 else if (SYMBOLP (elt))
|
|
|
3924 {
|
|
|
3925 /* A symbol: process the value of the symbol recursively
|
|
|
3926 as if it appeared here directly. */
|
|
|
3927 Lisp_Object tem = symbol_value_in_buffer (elt, w->buffer);
|
|
|
3928
|
|
|
3929 if (!UNBOUNDP (tem))
|
|
|
3930 {
|
|
398
|
3931 /* If value is a string, output that string literally:
|
|
265
|
3932 don't check for % within it. */
|
|
|
3933 if (STRINGP (tem))
|
|
|
3934 {
|
|
398
|
3935 Bufbyte *str = XSTRING_DATA (tem);
|
|
|
3936 Charcount size = XSTRING_CHAR_LENGTH (tem);
|
|
|
3937
|
|
|
3938 if (size <= *offset)
|
|
|
3939 *offset -= size;
|
|
|
3940 else
|
|
|
3941 {
|
|
|
3942 const Bufbyte *tmp_str = charptr_n_addr (str, *offset);
|
|
|
3943
|
|
|
3944 /* #### NOTE: I don't understand why a tmp_max is not
|
|
|
3945 computed and used here as in the plain string case
|
|
|
3946 above. -- dv */
|
|
|
3947 pos = add_string_to_fstring_db_runes (data, tmp_str, pos,
|
|
|
3948 min_pos, max_pos);
|
|
|
3949 *offset = 0;
|
|
|
3950 }
|
|
265
|
3951 }
|
|
|
3952 /* Give up right away for nil or t. */
|
|
|
3953 else if (!EQ (tem, elt))
|
|
|
3954 {
|
|
|
3955 elt = tem;
|
|
|
3956 goto tail_recurse;
|
|
|
3957 }
|
|
|
3958 }
|
|
|
3959 }
|
|
274
|
3960 else if (GENERIC_SPECIFIERP (elt))
|
|
|
3961 {
|
|
|
3962 Lisp_Object window, tem;
|
|
|
3963 XSETWINDOW (window, w);
|
|
|
3964 tem = specifier_instance_no_quit (elt, Qunbound, window,
|
|
|
3965 ERROR_ME_NOT, 0, Qzero);
|
|
|
3966 if (!UNBOUNDP (tem))
|
|
|
3967 {
|
|
|
3968 elt = tem;
|
|
|
3969 goto tail_recurse;
|
|
|
3970 }
|
|
|
3971 }
|
|
265
|
3972 else if (CONSP (elt))
|
|
|
3973 {
|
|
|
3974 /* A cons cell: four distinct cases.
|
|
398
|
3975 * - If first element is a string or a cons, process all the elements
|
|
|
3976 * and effectively concatenate them.
|
|
|
3977 * - If first element is a negative number, truncate displaying cdr to
|
|
|
3978 * at most that many characters. If positive, pad (with spaces)
|
|
|
3979 * to at least that many characters.
|
|
|
3980 * - If first element is another symbol, process the cadr or caddr
|
|
|
3981 * recursively according to whether the symbol's value is non-nil or
|
|
|
3982 * nil.
|
|
|
3983 * - If first element is a face, process the cdr recursively
|
|
|
3984 * without altering the depth.
|
|
265
|
3985 */
|
|
398
|
3986
|
|
265
|
3987 Lisp_Object car, tem;
|
|
|
3988
|
|
|
3989 car = XCAR (elt);
|
|
|
3990 if (SYMBOLP (car))
|
|
398
|
3991 {
|
|
|
3992 elt = XCDR (elt);
|
|
|
3993 if (!CONSP (elt))
|
|
|
3994 goto invalid;
|
|
|
3995
|
|
|
3996 tem = symbol_value_in_buffer (car, w->buffer);
|
|
|
3997 /* elt is now the cdr, and we know it is a cons cell.
|
|
|
3998 Use its car if CAR has a non-nil value. */
|
|
|
3999 if (!UNBOUNDP (tem))
|
|
|
4000 {
|
|
|
4001 if (!NILP (tem))
|
|
|
4002 {
|
|
|
4003 elt = XCAR (elt);
|
|
|
4004 goto tail_recurse;
|
|
|
4005 }
|
|
|
4006 }
|
|
|
4007 /* Symbol's value is nil (or symbol is unbound)
|
|
|
4008 * Get the cddr of the original list
|
|
|
4009 * and if possible find the caddr and use that.
|
|
|
4010 */
|
|
|
4011 elt = XCDR (elt);
|
|
|
4012 if (NILP (elt))
|
|
|
4013 ;
|
|
|
4014 else if (!CONSP (elt))
|
|
|
4015 goto invalid;
|
|
|
4016 else
|
|
|
4017 {
|
|
|
4018 elt = XCAR (elt);
|
|
|
4019 goto tail_recurse;
|
|
|
4020 }
|
|
|
4021 }
|
|
265
|
4022 else if (INTP (car))
|
|
|
4023 {
|
|
|
4024 Charcount lim = XINT (car);
|
|
|
4025
|
|
|
4026 elt = XCDR (elt);
|
|
|
4027
|
|
|
4028 if (lim < 0)
|
|
|
4029 {
|
|
|
4030 /* Negative int means reduce maximum width.
|
|
|
4031 * DO NOT change MIN_PIXPOS here!
|
|
|
4032 * (20 -10 . foo) should truncate foo to 10 col
|
|
|
4033 * and then pad to 20.
|
|
|
4034 */
|
|
|
4035 if (max_pos == -1)
|
|
|
4036 max_pos = pos - lim;
|
|
|
4037 else
|
|
|
4038 max_pos = min (max_pos, pos - lim);
|
|
|
4039 }
|
|
|
4040 else if (lim > 0)
|
|
|
4041 {
|
|
|
4042 /* Padding specified. Don't let it be more than
|
|
|
4043 * current maximum.
|
|
|
4044 */
|
|
|
4045 lim += pos;
|
|
|
4046 if (max_pos != -1 && lim > max_pos)
|
|
|
4047 lim = max_pos;
|
|
|
4048 /* If that's more padding than already wanted, queue it.
|
|
|
4049 * But don't reduce padding already specified even if
|
|
|
4050 * that is beyond the current truncation point.
|
|
|
4051 */
|
|
|
4052 if (lim > min_pos)
|
|
|
4053 min_pos = lim;
|
|
|
4054 }
|
|
|
4055 goto tail_recurse;
|
|
|
4056 }
|
|
|
4057 else if (STRINGP (car) || CONSP (car))
|
|
|
4058 {
|
|
|
4059 int limit = 50;
|
|
398
|
4060
|
|
265
|
4061 /* LIMIT is to protect against circular lists. */
|
|
|
4062 while (CONSP (elt) && --limit > 0
|
|
|
4063 && (pos < max_pos || max_pos == -1))
|
|
|
4064 {
|
|
|
4065 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
398
|
4066 XCAR (elt), depth, max_pixsize,
|
|
|
4067 findex, type, offset, cur_ext);
|
|
265
|
4068 elt = XCDR (elt);
|
|
|
4069 }
|
|
|
4070 }
|
|
|
4071 else if (EXTENTP (car))
|
|
|
4072 {
|
|
|
4073 struct extent *ext = XEXTENT (car);
|
|
|
4074
|
|
|
4075 if (EXTENT_LIVE_P (ext))
|
|
|
4076 {
|
|
|
4077 face_index old_findex = data->findex;
|
|
|
4078 Lisp_Object face;
|
|
|
4079 Lisp_Object font_inst;
|
|
|
4080 face_index new_findex;
|
|
|
4081 Bytecount start = data->bytepos;
|
|
|
4082
|
|
|
4083 face = extent_face (ext);
|
|
|
4084 if (FACEP (face))
|
|
|
4085 {
|
|
|
4086 /* #### needs to merge faces, sigh */
|
|
|
4087 /* #### needs to handle list of faces */
|
|
|
4088 new_findex = get_builtin_face_cache_index (w, face);
|
|
|
4089 /* !!#### not right; needs to compute the max height of
|
|
|
4090 all the charsets */
|
|
|
4091 font_inst = WINDOW_FACE_CACHEL_FONT (w, new_findex,
|
|
|
4092 Vcharset_ascii);
|
|
|
4093
|
|
|
4094 data->dl->ascent = max (data->dl->ascent,
|
|
|
4095 XFONT_INSTANCE (font_inst)->ascent);
|
|
|
4096 data->dl->descent = max (data->dl->descent,
|
|
|
4097 XFONT_INSTANCE (font_inst)->
|
|
|
4098 descent);
|
|
|
4099 }
|
|
|
4100 else
|
|
|
4101 new_findex = old_findex;
|
|
|
4102
|
|
|
4103 data->findex = new_findex;
|
|
|
4104 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
|
4105 XCDR (elt), depth - 1,
|
|
398
|
4106 max_pixsize, new_findex, type,
|
|
|
4107 offset, car);
|
|
265
|
4108 data->findex = old_findex;
|
|
|
4109 Dynarr_add (formatted_string_extent_dynarr, ext);
|
|
|
4110 Dynarr_add (formatted_string_extent_start_dynarr, start);
|
|
|
4111 Dynarr_add (formatted_string_extent_end_dynarr, data->bytepos);
|
|
|
4112 }
|
|
|
4113 }
|
|
|
4114 }
|
|
|
4115 else if (GLYPHP (elt))
|
|
|
4116 {
|
|
398
|
4117 /* Glyphs are considered as one character with respect to the modeline
|
|
|
4118 horizontal scrolling facility. -- dv */
|
|
|
4119 if (*offset > 0)
|
|
|
4120 *offset -= 1;
|
|
|
4121 else
|
|
|
4122 pos = add_glyph_to_fstring_db_runes (data, elt, pos, pos, max_pos,
|
|
|
4123 cur_ext);
|
|
265
|
4124 }
|
|
|
4125 else
|
|
|
4126 {
|
|
|
4127 invalid:
|
|
398
|
4128 {
|
|
|
4129 char *str = GETTEXT ("*invalid*");
|
|
|
4130 Charcount size = (Charcount) strlen (str); /* is this ok ?? -- dv */
|
|
|
4131
|
|
|
4132 if (size <= *offset)
|
|
|
4133 *offset -= size;
|
|
|
4134 else
|
|
|
4135 {
|
|
|
4136 const Bufbyte *tmp_str =
|
|
|
4137 charptr_n_addr ((const Bufbyte *) str, *offset);
|
|
|
4138
|
|
|
4139 /* #### NOTE: I don't understand why a tmp_max is not computed and
|
|
|
4140 used here as in the plain string case above. -- dv */
|
|
|
4141 pos = add_string_to_fstring_db_runes (data, tmp_str, pos,
|
|
|
4142 min_pos, max_pos);
|
|
|
4143 *offset = 0;
|
|
|
4144 }
|
|
|
4145 }
|
|
265
|
4146 }
|
|
|
4147
|
|
|
4148 if (min_pos > pos)
|
|
|
4149 {
|
|
398
|
4150 add_string_to_fstring_db_runes (data, (const Bufbyte *) "", pos,
|
|
|
4151 min_pos, -1);
|
|
265
|
4152 }
|
|
|
4153
|
|
|
4154 return pos;
|
|
|
4155 }
|
|
0
|
4156
|
|
|
4157 /* Update just the modeline. Assumes the desired display structs. If
|
|
|
4158 they do not have a modeline block, it does nothing. */
|
|
|
4159 static void
|
|
|
4160 regenerate_modeline (struct window *w)
|
|
|
4161 {
|
|
|
4162 display_line_dynarr *dla = window_display_lines (w, DESIRED_DISP);
|
|
|
4163
|
|
|
4164 if (!Dynarr_length (dla) || !Dynarr_atp (dla, 0)->modeline)
|
|
|
4165 return;
|
|
|
4166 else
|
|
|
4167 {
|
|
|
4168 generate_modeline (w, Dynarr_atp (dla, 0), DESIRED_DISP);
|
|
|
4169 redisplay_update_line (w, 0, 0, 0);
|
|
|
4170 }
|
|
|
4171 }
|
|
|
4172
|
|
|
4173 /* Make sure that modeline display line is present in the given
|
|
|
4174 display structs if the window has a modeline and update that
|
|
|
4175 line. Returns true if a modeline was needed. */
|
|
|
4176 static int
|
|
|
4177 ensure_modeline_generated (struct window *w, int type)
|
|
|
4178 {
|
|
|
4179 int need_modeline;
|
|
|
4180
|
|
|
4181 /* minibuffer windows don't have modelines */
|
|
|
4182 if (MINI_WINDOW_P (w))
|
|
|
4183 need_modeline = 0;
|
|
|
4184 /* windows which haven't had it turned off do */
|
|
|
4185 else if (WINDOW_HAS_MODELINE_P (w))
|
|
|
4186 need_modeline = 1;
|
|
|
4187 /* windows which have it turned off don't have a divider if there is
|
|
|
4188 a horizontal scrollbar */
|
|
|
4189 else if (window_scrollbar_height (w))
|
|
|
4190 need_modeline = 0;
|
|
|
4191 /* and in this case there is none */
|
|
|
4192 else
|
|
|
4193 need_modeline = 1;
|
|
|
4194
|
|
|
4195 if (need_modeline)
|
|
|
4196 {
|
|
|
4197 display_line_dynarr *dla;
|
|
|
4198
|
|
|
4199 dla = window_display_lines (w, type);
|
|
|
4200
|
|
|
4201 /* We don't care if there is a display line which is not
|
|
|
4202 currently a modeline because it is definitely going to become
|
|
|
4203 one if we have gotten to this point. */
|
|
|
4204 if (Dynarr_length (dla) == 0)
|
|
|
4205 {
|
|
|
4206 if (Dynarr_largest (dla) > 0)
|
|
|
4207 {
|
|
|
4208 struct display_line *mlp = Dynarr_atp (dla, 0);
|
|
|
4209 Dynarr_add (dla, *mlp);
|
|
|
4210 }
|
|
|
4211 else
|
|
|
4212 {
|
|
|
4213 struct display_line modeline;
|
|
272
|
4214 xzero (modeline);
|
|
0
|
4215 Dynarr_add (dla, modeline);
|
|
|
4216 }
|
|
|
4217 }
|
|
|
4218
|
|
|
4219 /* If we're adding a new place marker go ahead and generate the
|
|
|
4220 modeline so that it is available for use by
|
|
|
4221 window_modeline_height. */
|
|
|
4222 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
4223 }
|
|
|
4224
|
|
|
4225 return need_modeline;
|
|
|
4226 }
|
|
|
4227
|
|
|
4228 /* #### Kludge or not a kludge. I tend towards the former. */
|
|
|
4229 int
|
|
|
4230 real_current_modeline_height (struct window *w)
|
|
|
4231 {
|
|
185
|
4232 Fset_marker (w->start[CMOTION_DISP], w->start[CURRENT_DISP], w->buffer);
|
|
2
|
4233 Fset_marker (w->pointm[CMOTION_DISP], w->pointm[CURRENT_DISP], w->buffer);
|
|
0
|
4234
|
|
|
4235 if (ensure_modeline_generated (w, CMOTION_DISP))
|
|
|
4236 {
|
|
185
|
4237 display_line_dynarr *dla = window_display_lines (w, CMOTION_DISP);
|
|
0
|
4238
|
|
|
4239 if (Dynarr_length (dla))
|
|
|
4240 {
|
|
|
4241 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
4242 return (Dynarr_atp (dla, 0)->ascent +
|
|
|
4243 Dynarr_atp (dla, 0)->descent);
|
|
185
|
4244 }
|
|
|
4245 }
|
|
|
4246 return 0;
|
|
0
|
4247 }
|
|
|
4248
|
|
|
4249
|
|
|
4250 /***************************************************************************/
|
|
398
|
4251 /* */
|
|
|
4252 /* displayable string routines */
|
|
|
4253 /* */
|
|
|
4254 /***************************************************************************/
|
|
|
4255
|
|
|
4256 /* Given a position for a string in a window, ensure that the given
|
|
|
4257 display line DL accurately represents the text on a line starting
|
|
|
4258 at the given position.
|
|
|
4259
|
|
|
4260 Yes, this is duplicating the code of create_text_block, but it
|
|
|
4261 looked just too hard to change create_text_block to handle strings
|
|
|
4262 *and* buffers. We already make a distinction between the two
|
|
|
4263 elsewhere in the code so I think unifying them would require a
|
|
|
4264 complete MULE rewrite. Besides, the other distinction is that these
|
|
|
4265 functions cover text that the user *cannot edit* so we can remove
|
|
|
4266 everything to do with cursors, minibuffers etc. Eventually the
|
|
|
4267 modeline routines should be modified to use this code as it copes
|
|
|
4268 with many more types of display situation. */
|
|
|
4269
|
|
|
4270 static Bufpos
|
|
|
4271 create_string_text_block (struct window *w, Lisp_Object disp_string,
|
|
|
4272 struct display_line *dl,
|
|
|
4273 Bufpos start_pos,
|
|
|
4274 prop_block_dynarr **prop,
|
|
|
4275 face_index default_face)
|
|
|
4276 {
|
|
|
4277 struct frame *f = XFRAME (w->frame);
|
|
|
4278 /* Note that a lot of the buffer controlled stuff has been left in
|
|
|
4279 because you might well want to make use of it (selective display
|
|
|
4280 etc), its just the buffer text that we do not use. However, it
|
|
|
4281 seems to be possible for buffer to be nil sometimes so protect
|
|
|
4282 against this case. */
|
|
|
4283 struct buffer *b = BUFFERP (w->buffer) ? XBUFFER (w->buffer) : 0;
|
|
|
4284 struct device *d = XDEVICE (f->device);
|
|
|
4285 Lisp_String* s = XSTRING (disp_string);
|
|
|
4286
|
|
|
4287 /* we're working with these a lot so precalculate them */
|
|
|
4288 Bytecount slen = XSTRING_LENGTH (disp_string);
|
|
|
4289 Bytecount bi_string_zv = slen;
|
|
|
4290 Bytind bi_start_pos = charcount_to_bytecount (string_data (s), start_pos);
|
|
|
4291
|
|
|
4292 pos_data data;
|
|
|
4293
|
|
|
4294 int truncate_win = b ? window_truncation_on (w) : 0;
|
|
|
4295 int end_glyph_width = 0;
|
|
|
4296
|
|
|
4297 /* we're going to ditch selective display for static text, its an
|
|
|
4298 FSF thing and invisble extents are the way to go
|
|
|
4299 here. Implementing it also relies on a number of buffer-specific
|
|
|
4300 functions that we don't have the luxury of being able to use
|
|
|
4301 here. */
|
|
|
4302
|
|
|
4303 /* The variable ctl-arrow allows the user to specify what characters
|
|
|
4304 can actually be displayed and which octal should be used for.
|
|
|
4305 #### This variable should probably have some rethought done to
|
|
|
4306 it.
|
|
|
4307
|
|
|
4308 #### It would also be really nice if you could specify that
|
|
|
4309 the characters come out in hex instead of in octal. Mule
|
|
|
4310 does that by adding a ctl-hexa variable similar to ctl-arrow,
|
|
|
4311 but that's bogus -- we need a more general solution. I
|
|
|
4312 think you need to extend the concept of display tables
|
|
|
4313 into a more general conversion mechanism. Ideally you
|
|
|
4314 could specify a Lisp function that converts characters,
|
|
|
4315 but this violates the Second Golden Rule and besides would
|
|
|
4316 make things way way way way slow.
|
|
|
4317
|
|
|
4318 So instead, we extend the display-table concept, which was
|
|
|
4319 historically limited to 256-byte vectors, to one of the
|
|
|
4320 following:
|
|
|
4321
|
|
|
4322 a) A 256-entry vector, for backward compatibility;
|
|
|
4323 b) char-table, mapping characters to values;
|
|
|
4324 c) range-table, mapping ranges of characters to values;
|
|
|
4325 d) a list of the above.
|
|
|
4326
|
|
|
4327 The (d) option allows you to specify multiple display tables
|
|
|
4328 instead of just one. Each display table can specify conversions
|
|
|
4329 for some characters and leave others unchanged. The way the
|
|
|
4330 character gets displayed is determined by the first display table
|
|
|
4331 with a binding for that character. This way, you could call a
|
|
|
4332 function `enable-hex-display' that adds a hex display-table to
|
|
|
4333 the list of display tables for the current buffer.
|
|
|
4334
|
|
|
4335 #### ...not yet implemented... Also, we extend the concept of
|
|
|
4336 "mapping" to include a printf-like spec. Thus you can make all
|
|
|
4337 extended characters show up as hex with a display table like
|
|
|
4338 this:
|
|
|
4339
|
|
|
4340 #s(range-table data ((256 524288) (format "%x")))
|
|
|
4341
|
|
|
4342 Since more than one display table is possible, you have
|
|
|
4343 great flexibility in mapping ranges of characters. */
|
|
|
4344 Emchar printable_min = b ? (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
|
4345 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
4346 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
4347 ? 255 : 160)) : 255;
|
|
|
4348
|
|
|
4349 Lisp_Object face_dt, window_dt;
|
|
|
4350
|
|
|
4351 /* The text display block for this display line. */
|
|
|
4352 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
4353
|
|
|
4354 /* The first time through the main loop we need to force the glyph
|
|
|
4355 data to be updated. */
|
|
|
4356 int initial = 1;
|
|
|
4357
|
|
|
4358 /* Apparently the new extent_fragment_update returns an end position
|
|
|
4359 equal to the position passed in if there are no more runs to be
|
|
|
4360 displayed. */
|
|
|
4361 int no_more_frags = 0;
|
|
|
4362
|
|
|
4363 dl->used_prop_data = 0;
|
|
|
4364 dl->num_chars = 0;
|
|
406
|
4365 dl->line_continuation = 0;
|
|
398
|
4366
|
|
|
4367 /* set up faces to use for clearing areas, used by
|
|
|
4368 output_display_line */
|
|
|
4369 dl->default_findex = default_face;
|
|
|
4370 if (default_face)
|
|
|
4371 {
|
|
|
4372 dl->left_margin_findex = default_face;
|
|
|
4373 dl->right_margin_findex = default_face;
|
|
|
4374 }
|
|
|
4375 else
|
|
|
4376 {
|
|
|
4377 dl->left_margin_findex =
|
|
|
4378 get_builtin_face_cache_index (w, Vleft_margin_face);
|
|
|
4379 dl->right_margin_findex =
|
|
|
4380 get_builtin_face_cache_index (w, Vright_margin_face);
|
|
|
4381 }
|
|
|
4382
|
|
|
4383 xzero (data);
|
|
|
4384 data.ef = extent_fragment_new (disp_string, f);
|
|
|
4385
|
|
|
4386 /* These values are used by all of the rune addition routines. We add
|
|
|
4387 them to this structure for ease of passing. */
|
|
|
4388 data.d = d;
|
|
|
4389 XSETWINDOW (data.window, w);
|
|
|
4390 data.db = db;
|
|
|
4391 data.dl = dl;
|
|
|
4392
|
|
|
4393 data.bi_bufpos = bi_start_pos;
|
|
|
4394 data.pixpos = dl->bounds.left_in;
|
|
|
4395 data.last_charset = Qunbound;
|
|
|
4396 data.last_findex = default_face;
|
|
|
4397 data.result_str = Qnil;
|
|
|
4398 data.string = disp_string;
|
|
|
4399
|
|
|
4400 /* Set the right boundary adjusting it to take into account any end
|
|
|
4401 glyph. Save the width of the end glyph for later use. */
|
|
|
4402 data.max_pixpos = dl->bounds.right_in;
|
|
|
4403 #if 0
|
|
|
4404 if (truncate_win)
|
|
|
4405 end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
|
|
|
4406 else
|
|
|
4407 end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
|
|
|
4408 #endif
|
|
|
4409 data.max_pixpos -= end_glyph_width;
|
|
|
4410
|
|
|
4411 data.cursor_type = NO_CURSOR;
|
|
|
4412 data.cursor_x = -1;
|
|
|
4413
|
|
|
4414 data.start_col = 0;
|
|
|
4415 /* I don't think we want this, string areas should not scroll with
|
|
|
4416 the window
|
|
|
4417 data.start_col = w->hscroll;
|
|
|
4418 data.bi_start_col_enabled = (w->hscroll ? bi_start_pos : 0);
|
|
|
4419 */
|
|
|
4420 data.bi_start_col_enabled = 0;
|
|
|
4421 data.hscroll_glyph_width_adjust = 0;
|
|
|
4422
|
|
|
4423 /* We regenerate the line from the very beginning. */
|
|
|
4424 Dynarr_reset (db->runes);
|
|
|
4425
|
|
|
4426 /* Why is this less than or equal and not just less than? If the
|
|
|
4427 starting position is already equal to the maximum we can't add
|
|
|
4428 anything else, right? Wrong. We might still have a newline to
|
|
|
4429 add. A newline can use the room allocated for an end glyph since
|
|
|
4430 if we add it we know we aren't going to be adding any end
|
|
|
4431 glyph. */
|
|
|
4432
|
|
|
4433 /* #### Chuck -- I think this condition should be while (1).
|
|
|
4434 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
4435 and the begin-glyph ends exactly at the end of the window, the
|
|
|
4436 end-glyph and text might not be displayed. while (1) ensures
|
|
|
4437 that the loop terminates only when either (a) there is
|
|
|
4438 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
4439
|
|
|
4440 #### Also I think you need to ensure that the operation
|
|
|
4441 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
4442 can't get interrupted in the middle. If you run off the end
|
|
|
4443 of the line during that operation, then you keep accumulating
|
|
|
4444 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
4445 there's a begin glyph at a particular position and attempting
|
|
|
4446 to display that glyph results in window-end being hit and
|
|
|
4447 propagation data being generated, then the character at that
|
|
|
4448 position won't be displayed.
|
|
|
4449
|
|
|
4450 #### See also the comment after the end of this loop, below.
|
|
|
4451 */
|
|
|
4452 while (data.pixpos <= data.max_pixpos)
|
|
|
4453 {
|
|
|
4454 /* #### This check probably should not be necessary. */
|
|
|
4455 if (data.bi_bufpos > bi_string_zv)
|
|
|
4456 {
|
|
|
4457 /* #### urk! More of this lossage! */
|
|
|
4458 data.bi_bufpos--;
|
|
|
4459 goto done;
|
|
|
4460 }
|
|
|
4461
|
|
|
4462 /* Check for face changes. */
|
|
|
4463 if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
|
|
|
4464 {
|
|
|
4465 /* Now compute the face and begin/end-glyph information. */
|
|
|
4466 data.findex =
|
|
|
4467 /* Remember that the extent-fragment routines deal in Bytind's. */
|
|
|
4468 extent_fragment_update (w, data.ef, data.bi_bufpos);
|
|
|
4469 /* This is somewhat cheesy but the alternative is to
|
|
|
4470 propagate default_face into extent_fragment_update. */
|
|
|
4471 if (data.findex == DEFAULT_INDEX)
|
|
|
4472 data.findex = default_face;
|
|
|
4473
|
|
|
4474 get_display_tables (w, data.findex, &face_dt, &window_dt);
|
|
|
4475
|
|
|
4476 if (data.bi_bufpos == data.ef->end)
|
|
|
4477 no_more_frags = 1;
|
|
|
4478 }
|
|
|
4479 initial = 0;
|
|
|
4480
|
|
|
4481 /* Determine what is next to be displayed. We first handle any
|
|
|
4482 glyphs returned by glyphs_at_bufpos. If there are no glyphs to
|
|
|
4483 display then we determine what to do based on the character at the
|
|
|
4484 current buffer position. */
|
|
|
4485
|
|
|
4486 /* If the current position is covered by an invisible extent, do
|
|
|
4487 nothing (except maybe add some ellipses).
|
|
|
4488
|
|
|
4489 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
4490 invisible extent should be investigated further. This is
|
|
|
4491 fairly low priority though. */
|
|
|
4492 if (data.ef->invisible)
|
|
|
4493 {
|
|
|
4494 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
4495 really know what I'm doing. */
|
|
|
4496 if (*prop)
|
|
|
4497 {
|
|
|
4498 Dynarr_free (*prop);
|
|
|
4499 *prop = 0;
|
|
|
4500 }
|
|
|
4501
|
|
|
4502 /* The extent fragment code only sets this when we should
|
|
|
4503 really display the ellipses. It makes sure the ellipses
|
|
|
4504 don't get displayed more than once in a row. */
|
|
|
4505 if (data.ef->invisible_ellipses)
|
|
|
4506 {
|
|
|
4507 struct glyph_block gb;
|
|
|
4508
|
|
|
4509 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
4510 data.ef->invisible_ellipses = 0;
|
|
|
4511 gb.extent = Qnil;
|
|
|
4512 gb.glyph = Vinvisible_text_glyph;
|
|
|
4513 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
4514 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
4515 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
4516 is to display a newline (for compatibility with
|
|
|
4517 selective-display-ellipses)? Maybe that's too
|
|
|
4518 abstruse. */
|
|
|
4519 if (*prop)
|
|
|
4520 goto done;
|
|
|
4521 }
|
|
|
4522
|
|
|
4523 /* #### What if we we're dealing with a display table? */
|
|
|
4524 if (data.start_col)
|
|
|
4525 data.start_col--;
|
|
|
4526
|
|
|
4527 if (data.bi_bufpos == bi_string_zv)
|
|
|
4528 goto done;
|
|
|
4529 else
|
|
|
4530 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4531 }
|
|
|
4532
|
|
|
4533 /* If there is propagation data, then it represents the current
|
|
|
4534 buffer position being displayed. Add them and advance the
|
|
|
4535 position counter. This might also add the minibuffer
|
|
|
4536 prompt. */
|
|
|
4537 else if (*prop)
|
|
|
4538 {
|
|
|
4539 dl->used_prop_data = 1;
|
|
|
4540 *prop = add_propagation_runes (prop, &data);
|
|
|
4541
|
|
|
4542 if (*prop)
|
|
|
4543 goto done; /* gee, a really narrow window */
|
|
|
4544 else if (data.bi_bufpos == bi_string_zv)
|
|
|
4545 goto done;
|
|
|
4546 else if (data.bi_bufpos < 0)
|
|
|
4547 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
|
4548 data.bi_bufpos = 0;
|
|
|
4549 else
|
|
|
4550 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4551 }
|
|
|
4552
|
|
|
4553 /* If there are end glyphs, add them to the line. These are
|
|
|
4554 the end glyphs for the previous run of text. We add them
|
|
|
4555 here rather than doing them at the end of handling the
|
|
|
4556 previous run so that glyphs at the beginning and end of
|
|
|
4557 a line are handled correctly. */
|
|
|
4558 else if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
4559 {
|
|
|
4560 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
|
4561 if (*prop)
|
|
|
4562 goto done;
|
|
|
4563 }
|
|
|
4564
|
|
|
4565 /* If there are begin glyphs, add them to the line. */
|
|
|
4566 else if (Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
4567 {
|
|
|
4568 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
|
4569 if (*prop)
|
|
|
4570 goto done;
|
|
|
4571 }
|
|
|
4572
|
|
|
4573 /* If at end-of-buffer, we've already processed begin and
|
|
|
4574 end-glyphs at this point and there's no text to process,
|
|
|
4575 so we're done. */
|
|
|
4576 else if (data.bi_bufpos == bi_string_zv)
|
|
|
4577 goto done;
|
|
|
4578
|
|
|
4579 else
|
|
|
4580 {
|
|
|
4581 Lisp_Object entry = Qnil;
|
|
|
4582 /* Get the character at the current buffer position. */
|
|
|
4583 data.ch = string_char (s, data.bi_bufpos);
|
|
|
4584 if (!NILP (face_dt) || !NILP (window_dt))
|
|
|
4585 entry = display_table_entry (data.ch, face_dt, window_dt);
|
|
|
4586
|
|
|
4587 /* If there is a display table entry for it, hand it off to
|
|
|
4588 add_disp_table_entry_runes and let it worry about it. */
|
|
|
4589 if (!NILP (entry) && !EQ (entry, make_char (data.ch)))
|
|
|
4590 {
|
|
|
4591 *prop = add_disp_table_entry_runes (&data, entry);
|
|
|
4592
|
|
|
4593 if (*prop)
|
|
|
4594 goto done;
|
|
|
4595 }
|
|
|
4596
|
|
|
4597 /* Check if we have hit a newline character. If so, add a marker
|
|
|
4598 to the line and end this loop. */
|
|
|
4599 else if (data.ch == '\n')
|
|
|
4600 {
|
|
|
4601 /* We aren't going to be adding an end glyph so give its
|
|
|
4602 space back in order to make sure that the cursor can
|
|
|
4603 fit. */
|
|
|
4604 data.max_pixpos += end_glyph_width;
|
|
|
4605 goto done;
|
|
|
4606 }
|
|
|
4607
|
|
|
4608 /* If the current character is considered to be printable, then
|
|
|
4609 just add it. */
|
|
|
4610 else if (data.ch >= printable_min)
|
|
|
4611 {
|
|
|
4612 *prop = add_emchar_rune (&data);
|
|
|
4613 if (*prop)
|
|
|
4614 goto done;
|
|
|
4615 }
|
|
|
4616
|
|
|
4617 /* If the current character is a tab, determine the next tab
|
|
|
4618 starting position and add a blank rune which extends from the
|
|
|
4619 current pixel position to that starting position. */
|
|
|
4620 else if (data.ch == '\t')
|
|
|
4621 {
|
|
|
4622 int tab_start_pixpos = data.pixpos;
|
|
|
4623 int next_tab_start;
|
|
|
4624 int char_tab_width;
|
|
|
4625 int prop_width = 0;
|
|
|
4626
|
|
|
4627 if (data.start_col > 1)
|
|
|
4628 tab_start_pixpos -= (space_width (w) * (data.start_col - 1));
|
|
|
4629
|
|
|
4630 next_tab_start =
|
|
|
4631 next_tab_position (w, tab_start_pixpos,
|
|
|
4632 dl->bounds.left_in +
|
|
|
4633 data.hscroll_glyph_width_adjust);
|
|
|
4634 if (next_tab_start > data.max_pixpos)
|
|
|
4635 {
|
|
|
4636 prop_width = next_tab_start - data.max_pixpos;
|
|
|
4637 next_tab_start = data.max_pixpos;
|
|
|
4638 }
|
|
|
4639 data.blank_width = next_tab_start - data.pixpos;
|
|
|
4640 char_tab_width =
|
|
|
4641 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
4642
|
|
|
4643 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
4644
|
|
|
4645 /* add_blank_rune is only supposed to be called with
|
|
|
4646 sizes guaranteed to fit in the available space. */
|
|
|
4647 assert (!(*prop));
|
|
|
4648
|
|
|
4649 if (prop_width)
|
|
|
4650 {
|
|
|
4651 struct prop_block pb;
|
|
|
4652 *prop = Dynarr_new (prop_block);
|
|
|
4653
|
|
|
4654 pb.type = PROP_BLANK;
|
|
|
4655 pb.data.p_blank.width = prop_width;
|
|
|
4656 pb.data.p_blank.findex = data.findex;
|
|
|
4657 Dynarr_add (*prop, pb);
|
|
|
4658
|
|
|
4659 goto done;
|
|
|
4660 }
|
|
|
4661 }
|
|
|
4662
|
|
|
4663 /* If character is a control character, pass it off to
|
|
|
4664 add_control_char_runes.
|
|
|
4665
|
|
|
4666 The is_*() routines have undefined results on
|
|
|
4667 arguments outside of the range [-1, 255]. (This
|
|
|
4668 often bites people who carelessly use `char' instead
|
|
|
4669 of `unsigned char'.)
|
|
|
4670 */
|
|
|
4671 else if (data.ch < 0x100 && iscntrl ((Bufbyte) data.ch))
|
|
|
4672 {
|
|
|
4673 *prop = add_control_char_runes (&data, b);
|
|
|
4674
|
|
|
4675 if (*prop)
|
|
|
4676 goto done;
|
|
|
4677 }
|
|
|
4678
|
|
|
4679 /* If the character is above the ASCII range and we have not
|
|
|
4680 already handled it, then print it as an octal number. */
|
|
|
4681 else if (data.ch >= 0200)
|
|
|
4682 {
|
|
|
4683 *prop = add_octal_runes (&data);
|
|
|
4684
|
|
|
4685 if (*prop)
|
|
|
4686 goto done;
|
|
|
4687 }
|
|
|
4688
|
|
|
4689 /* Assume the current character is considered to be printable,
|
|
|
4690 then just add it. */
|
|
|
4691 else
|
|
|
4692 {
|
|
|
4693 *prop = add_emchar_rune (&data);
|
|
|
4694 if (*prop)
|
|
|
4695 goto done;
|
|
|
4696 }
|
|
|
4697
|
|
|
4698 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4699 }
|
|
|
4700 }
|
|
|
4701
|
|
|
4702 done:
|
|
|
4703
|
|
|
4704 /* Determine the starting point of the next line if we did not hit the
|
|
|
4705 end of the buffer. */
|
|
|
4706 if (data.bi_bufpos < bi_string_zv)
|
|
|
4707 {
|
|
|
4708 /* #### This check is not correct. If the line terminated
|
|
|
4709 due to a begin-glyph or end-glyph hitting window-end, then
|
|
|
4710 data.ch will not point to the character at data.bi_bufpos. If
|
|
|
4711 you make the two changes mentioned at the top of this loop,
|
|
|
4712 you should be able to say '(if (*prop))'. That should also
|
|
|
4713 make it possible to eliminate the data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
4714 check. */
|
|
|
4715
|
|
|
4716 /* The common case is that the line ended because we hit a newline.
|
|
|
4717 In that case, the next character is just the next buffer
|
|
|
4718 position. */
|
|
|
4719 if (data.ch == '\n')
|
|
|
4720 {
|
|
|
4721 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4722 }
|
|
|
4723
|
|
|
4724 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
4725 line. */
|
|
|
4726 else
|
|
|
4727 {
|
|
|
4728 struct glyph_block gb;
|
|
|
4729 struct glyph_cachel *cachel;
|
|
|
4730
|
|
|
4731 /* If the line is to be truncated then we actually have to look
|
|
|
4732 for the next newline. We also add the end-of-line glyph which
|
|
|
4733 we know will fit because we adjusted the right border before
|
|
|
4734 we starting laying out the line. */
|
|
|
4735 data.max_pixpos += end_glyph_width;
|
|
|
4736 data.findex = default_face;
|
|
|
4737 gb.extent = Qnil;
|
|
|
4738
|
|
|
4739 if (truncate_win)
|
|
|
4740 {
|
|
|
4741 Bytind bi_pos;
|
|
|
4742
|
|
|
4743 /* Now find the start of the next line. */
|
|
|
4744 bi_pos = bi_find_next_emchar_in_string (s, '\n', data.bi_bufpos, 1);
|
|
|
4745
|
|
|
4746 data.cursor_type = NO_CURSOR;
|
|
|
4747 data.bi_bufpos = bi_pos;
|
|
|
4748 gb.glyph = Vtruncation_glyph;
|
|
|
4749 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
4750 }
|
|
|
4751 else
|
|
|
4752 {
|
|
|
4753 /* The cursor can never be on the continuation glyph. */
|
|
|
4754 data.cursor_type = NO_CURSOR;
|
|
|
4755
|
|
|
4756 /* data.bi_bufpos is already at the start of the next line. */
|
|
|
4757
|
|
406
|
4758 dl->line_continuation = 1;
|
|
398
|
4759 gb.glyph = Vcontinuation_glyph;
|
|
|
4760 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
4761 }
|
|
|
4762
|
|
|
4763 if (end_glyph_width)
|
|
|
4764 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, cachel);
|
|
|
4765
|
|
|
4766 if (truncate_win && data.bi_bufpos == bi_string_zv)
|
|
|
4767 {
|
|
|
4768 const Bufbyte* endb = charptr_n_addr (string_data (s), bi_string_zv);
|
|
|
4769 DEC_CHARPTR (endb);
|
|
|
4770 if (charptr_emchar (endb) != '\n')
|
|
|
4771 {
|
|
|
4772 /* #### Damn this losing shit. */
|
|
|
4773 data.bi_bufpos++;
|
|
|
4774 }
|
|
|
4775 }
|
|
|
4776 }
|
|
|
4777 }
|
|
|
4778 else if (data.bi_bufpos == bi_string_zv)
|
|
|
4779 {
|
|
|
4780 /* create_text_block () adds a bogus \n marker here which screws
|
|
|
4781 up subwindow display. Since we never have a cursor in the
|
|
|
4782 gutter we can safely ignore it. */
|
|
|
4783 }
|
|
|
4784 /* Calculate left whitespace boundary. */
|
|
|
4785 {
|
|
|
4786 int elt = 0;
|
|
|
4787
|
|
|
4788 /* Whitespace past a newline is considered right whitespace. */
|
|
|
4789 while (elt < Dynarr_length (db->runes))
|
|
|
4790 {
|
|
|
4791 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
4792
|
|
|
4793 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
4794 || rb->type == RUNE_BLANK)
|
|
|
4795 {
|
|
|
4796 dl->bounds.left_white += rb->width;
|
|
|
4797 elt++;
|
|
|
4798 }
|
|
|
4799 else
|
|
|
4800 elt = Dynarr_length (db->runes);
|
|
|
4801 }
|
|
|
4802 }
|
|
|
4803
|
|
|
4804 /* Calculate right whitespace boundary. */
|
|
|
4805 {
|
|
|
4806 int elt = Dynarr_length (db->runes) - 1;
|
|
|
4807 int done = 0;
|
|
|
4808
|
|
|
4809 while (!done && elt >= 0)
|
|
|
4810 {
|
|
|
4811 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
4812
|
|
|
4813 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
4814 && isspace (rb->object.chr.ch))
|
|
|
4815 && !rb->type == RUNE_BLANK)
|
|
|
4816 {
|
|
|
4817 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
4818 done = 1;
|
|
|
4819 }
|
|
|
4820
|
|
|
4821 elt--;
|
|
|
4822
|
|
|
4823 }
|
|
|
4824
|
|
|
4825 /* The line is blank so everything is considered to be right
|
|
|
4826 whitespace. */
|
|
|
4827 if (!done)
|
|
|
4828 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
4829 }
|
|
|
4830
|
|
|
4831 /* Set the display blocks bounds. */
|
|
|
4832 db->start_pos = dl->bounds.left_in;
|
|
|
4833 if (Dynarr_length (db->runes))
|
|
|
4834 {
|
|
|
4835 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
4836
|
|
|
4837 db->end_pos = rb->xpos + rb->width;
|
|
|
4838 }
|
|
|
4839 else
|
|
|
4840 db->end_pos = dl->bounds.right_white;
|
|
|
4841
|
|
|
4842 /* update line height parameters */
|
|
|
4843 if (!data.new_ascent && !data.new_descent)
|
|
|
4844 {
|
|
|
4845 /* We've got a blank line so initialize these values from the default
|
|
|
4846 face. */
|
|
|
4847 default_face_font_info (data.window, &data.new_ascent,
|
|
|
4848 &data.new_descent, 0, 0, 0);
|
|
|
4849 }
|
|
|
4850
|
|
|
4851 if (data.max_pixmap_height)
|
|
|
4852 {
|
|
|
4853 int height = data.new_ascent + data.new_descent;
|
|
|
4854 int pix_ascent, pix_descent;
|
|
|
4855
|
|
|
4856 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
4857 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
4858
|
|
|
4859 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
4860 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
4861 }
|
|
|
4862
|
|
|
4863 dl->ascent = data.new_ascent;
|
|
|
4864 dl->descent = data.new_descent;
|
|
|
4865
|
|
|
4866 {
|
|
|
4867 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
4868
|
|
|
4869 if (dl->ascent < ascent)
|
|
|
4870 dl->ascent = ascent;
|
|
|
4871 }
|
|
|
4872 {
|
|
|
4873 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
4874
|
|
|
4875 if (dl->descent < descent)
|
|
|
4876 dl->descent = descent;
|
|
|
4877 }
|
|
|
4878
|
|
|
4879 dl->cursor_elt = data.cursor_x;
|
|
|
4880 /* #### lossage lossage lossage! Fix this shit! */
|
|
|
4881 if (data.bi_bufpos > bi_string_zv)
|
|
|
4882 dl->end_bufpos = buffer_or_string_bytind_to_bufpos (disp_string, bi_string_zv);
|
|
|
4883 else
|
|
|
4884 dl->end_bufpos = buffer_or_string_bytind_to_bufpos (disp_string, data.bi_bufpos) - 1;
|
|
|
4885 if (truncate_win)
|
|
|
4886 data.dl->num_chars =
|
|
|
4887 string_column_at_point (s, dl->end_bufpos, b ? XINT (b->tab_width) : 8);
|
|
|
4888 else
|
|
|
4889 /* This doesn't correctly take into account tabs and control
|
|
|
4890 characters but if the window isn't being truncated then this
|
|
|
4891 value isn't going to end up being used anyhow. */
|
|
|
4892 data.dl->num_chars = dl->end_bufpos - dl->bufpos;
|
|
|
4893
|
|
|
4894 /* #### handle horizontally scrolled line with text none of which
|
|
|
4895 was actually laid out. */
|
|
|
4896
|
|
|
4897 /* #### handle any remainder of overlay arrow */
|
|
|
4898
|
|
|
4899 if (*prop == ADD_FAILED)
|
|
|
4900 *prop = NULL;
|
|
|
4901
|
|
|
4902 if (truncate_win && *prop)
|
|
|
4903 {
|
|
|
4904 Dynarr_free (*prop);
|
|
|
4905 *prop = NULL;
|
|
|
4906 }
|
|
|
4907
|
|
|
4908 extent_fragment_delete (data.ef);
|
|
|
4909
|
|
|
4910 /* #### If we started at EOB, then make sure we return a value past
|
|
|
4911 it so that regenerate_window will exit properly. This is bogus.
|
|
|
4912 The main loop should get fixed so that it isn't necessary to call
|
|
|
4913 this function if we are already at EOB. */
|
|
|
4914
|
|
|
4915 if (data.bi_bufpos == bi_string_zv && bi_start_pos == bi_string_zv)
|
|
|
4916 return bytecount_to_charcount (string_data (s), data.bi_bufpos) + 1; /* Yuck! */
|
|
|
4917 else
|
|
|
4918 return bytecount_to_charcount (string_data (s), data.bi_bufpos);
|
|
|
4919 }
|
|
|
4920
|
|
|
4921 /* Given a display line and a starting position, ensure that the
|
|
|
4922 contents of the display line accurately represent the visual
|
|
|
4923 representation of the buffer contents starting from the given
|
|
|
4924 position when displayed in the given window. The display line ends
|
|
|
4925 when the contents of the line reach the right boundary of the given
|
|
|
4926 window.
|
|
|
4927
|
|
|
4928 This is very similar to generate_display_line but with the same
|
|
|
4929 limitations as create_string_text_block. I have taken the liberty
|
|
|
4930 of fixing the bytind stuff though.*/
|
|
|
4931
|
|
|
4932 static Bufpos
|
|
|
4933 generate_string_display_line (struct window *w, Lisp_Object disp_string,
|
|
|
4934 struct display_line *dl,
|
|
|
4935 Bufpos start_pos,
|
|
|
4936 prop_block_dynarr **prop,
|
|
|
4937 face_index default_face)
|
|
|
4938 {
|
|
|
4939 Bufpos ret_bufpos;
|
|
|
4940
|
|
|
4941 /* you must set bounds before calling this. */
|
|
|
4942
|
|
|
4943 /* Reset what this line is using. */
|
|
|
4944 if (dl->display_blocks)
|
|
|
4945 Dynarr_reset (dl->display_blocks);
|
|
|
4946 if (dl->left_glyphs)
|
|
|
4947 {
|
|
|
4948 Dynarr_free (dl->left_glyphs);
|
|
|
4949 dl->left_glyphs = 0;
|
|
|
4950 }
|
|
|
4951 if (dl->right_glyphs)
|
|
|
4952 {
|
|
|
4953 Dynarr_free (dl->right_glyphs);
|
|
|
4954 dl->right_glyphs = 0;
|
|
|
4955 }
|
|
|
4956
|
|
|
4957 /* We aren't generating a modeline at the moment. */
|
|
|
4958 dl->modeline = 0;
|
|
|
4959
|
|
|
4960 /* Create a display block for the text region of the line. */
|
|
|
4961 ret_bufpos = create_string_text_block (w, disp_string, dl, start_pos,
|
|
|
4962 prop, default_face);
|
|
|
4963 dl->bufpos = start_pos;
|
|
|
4964 if (dl->end_bufpos < dl->bufpos)
|
|
|
4965 dl->end_bufpos = dl->bufpos;
|
|
|
4966
|
|
|
4967 /* If there are left glyphs associated with any character in the
|
|
|
4968 text block, then create a display block to handle them. */
|
|
|
4969 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
4970 create_left_glyph_block (w, dl, 0);
|
|
|
4971
|
|
|
4972 /* If there are right glyphs associated with any character in the
|
|
|
4973 text block, then create a display block to handle them. */
|
|
|
4974 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
4975 create_right_glyph_block (w, dl);
|
|
|
4976
|
|
|
4977 return ret_bufpos;
|
|
|
4978 }
|
|
|
4979
|
|
|
4980 /* This is ripped off from regenerate_window. All we want to do is
|
|
|
4981 loop through elements in the string creating display lines until we
|
|
|
4982 have covered the provided area. Simple really. */
|
|
|
4983 void
|
|
|
4984 generate_displayable_area (struct window *w, Lisp_Object disp_string,
|
|
|
4985 int xpos, int ypos, int width, int height,
|
|
|
4986 display_line_dynarr* dla,
|
|
|
4987 Bufpos start_pos,
|
|
|
4988 face_index default_face)
|
|
|
4989 {
|
|
|
4990 int yend = ypos + height;
|
|
|
4991 Charcount s_zv;
|
|
|
4992
|
|
|
4993 prop_block_dynarr *prop = 0;
|
|
|
4994 layout_bounds bounds;
|
|
|
4995 assert (dla);
|
|
|
4996
|
|
|
4997 Dynarr_reset (dla);
|
|
|
4998 /* if there's nothing to do then do nothing. code after this assumes
|
|
|
4999 there is something to do. */
|
|
|
5000 if (NILP (disp_string))
|
|
|
5001 return;
|
|
|
5002
|
|
|
5003 s_zv = XSTRING_CHAR_LENGTH (disp_string);
|
|
|
5004
|
|
|
5005 bounds.left_out = xpos;
|
|
|
5006 bounds.right_out = xpos + width;
|
|
|
5007 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
5008 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
5009 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
5010 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
5011 depend on the contents of the line being displayed. */
|
|
|
5012 bounds.left_white = bounds.left_in;
|
|
|
5013 bounds.right_white = bounds.right_in;
|
|
|
5014
|
|
|
5015 while (ypos < yend)
|
|
|
5016 {
|
|
|
5017 struct display_line dl;
|
|
|
5018 struct display_line *dlp;
|
|
|
5019 Bufpos next_pos;
|
|
|
5020 int local;
|
|
|
5021
|
|
|
5022 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
5023 {
|
|
|
5024 dlp = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
5025 local = 0;
|
|
|
5026 }
|
|
|
5027 else
|
|
|
5028 {
|
|
|
5029
|
|
|
5030 xzero (dl);
|
|
|
5031 dlp = &dl;
|
|
|
5032 local = 1;
|
|
|
5033 }
|
|
|
5034
|
|
|
5035 dlp->bounds = bounds;
|
|
|
5036 dlp->offset = 0;
|
|
|
5037 next_pos = generate_string_display_line (w, disp_string, dlp, start_pos,
|
|
|
5038 &prop, default_face);
|
|
|
5039 /* we need to make sure that we continue along the line if there
|
|
|
5040 is more left to display otherwise we just end up redisplaying
|
|
|
5041 the same chunk over and over again. */
|
|
|
5042 if (next_pos == start_pos && next_pos < s_zv)
|
|
|
5043 start_pos++;
|
|
|
5044 else
|
|
|
5045 start_pos = next_pos;
|
|
|
5046
|
|
|
5047 dlp->ypos = ypos + dlp->ascent;
|
|
|
5048 ypos = dlp->ypos + dlp->descent;
|
|
|
5049
|
|
|
5050 if (ypos > yend)
|
|
|
5051 {
|
|
|
5052 int visible_height = dlp->ascent + dlp->descent;
|
|
|
5053
|
|
|
5054 dlp->clip = (ypos - yend);
|
|
|
5055 visible_height -= dlp->clip;
|
|
|
5056
|
|
|
5057 if (visible_height < VERTICAL_CLIP (w, 1))
|
|
|
5058 {
|
|
|
5059 if (local)
|
|
|
5060 free_display_line (dlp);
|
|
|
5061 break;
|
|
|
5062 }
|
|
|
5063 }
|
|
|
5064 else
|
|
|
5065 dlp->clip = 0;
|
|
|
5066
|
|
|
5067 Dynarr_add (dla, *dlp);
|
|
|
5068
|
|
|
5069 /* #### This type of check needs to be done down in the
|
|
|
5070 generate_display_line call. */
|
|
|
5071 if (start_pos >= s_zv)
|
|
|
5072 break;
|
|
|
5073 }
|
|
|
5074
|
|
|
5075 if (prop)
|
|
|
5076 Dynarr_free (prop);
|
|
|
5077 }
|
|
|
5078
|
|
|
5079
|
|
|
5080 /***************************************************************************/
|
|
0
|
5081 /* */
|
|
|
5082 /* window-regeneration routines */
|
|
|
5083 /* */
|
|
|
5084 /***************************************************************************/
|
|
|
5085
|
|
|
5086 /* For a given window and starting position in the buffer it contains,
|
|
|
5087 ensure that the TYPE display lines accurately represent the
|
|
|
5088 presentation of the window. We pass the buffer instead of getting
|
|
|
5089 it from the window since redisplay_window may have temporarily
|
|
|
5090 changed it to the echo area buffer. */
|
|
|
5091
|
|
|
5092 static void
|
|
|
5093 regenerate_window (struct window *w, Bufpos start_pos, Bufpos point, int type)
|
|
|
5094 {
|
|
|
5095 struct frame *f = XFRAME (w->frame);
|
|
|
5096 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5097 int ypos = WINDOW_TEXT_TOP (w);
|
|
|
5098 int yend; /* set farther down */
|
|
398
|
5099 int yclip = WINDOW_TEXT_TOP_CLIP (w);
|
|
0
|
5100
|
|
|
5101 prop_block_dynarr *prop;
|
|
|
5102 layout_bounds bounds;
|
|
|
5103 display_line_dynarr *dla;
|
|
|
5104 int need_modeline;
|
|
|
5105
|
|
|
5106 /* The lines had better exist by this point. */
|
|
|
5107 if (!(dla = window_display_lines (w, type)))
|
|
|
5108 abort ();
|
|
|
5109 Dynarr_reset (dla);
|
|
|
5110 w->max_line_len = 0;
|
|
|
5111
|
|
|
5112 /* Normally these get updated in redisplay_window but it is possible
|
|
|
5113 for this function to get called from some other points where that
|
|
|
5114 update may not have occurred. This acts as a safety check. */
|
|
|
5115 if (!Dynarr_length (w->face_cachels))
|
|
|
5116 reset_face_cachels (w);
|
|
|
5117 if (!Dynarr_length (w->glyph_cachels))
|
|
|
5118 reset_glyph_cachels (w);
|
|
|
5119
|
|
|
5120 Fset_marker (w->start[type], make_int (start_pos), w->buffer);
|
|
|
5121 Fset_marker (w->pointm[type], make_int (point), w->buffer);
|
|
|
5122 w->last_point_x[type] = -1;
|
|
|
5123 w->last_point_y[type] = -1;
|
|
|
5124
|
|
|
5125 /* Make sure a modeline is in the structs if needed. */
|
|
|
5126 need_modeline = ensure_modeline_generated (w, type);
|
|
|
5127
|
|
|
5128 /* Wait until here to set this so that the structs have a modeline
|
|
|
5129 generated in the case where one didn't exist. */
|
|
|
5130 yend = WINDOW_TEXT_BOTTOM (w);
|
|
|
5131
|
|
|
5132 bounds = calculate_display_line_boundaries (w, 0);
|
|
|
5133
|
|
110
|
5134 /* 97/3/14 jhod: stuff added here to support pre-prompts (used for input systems) */
|
|
0
|
5135 if (MINI_WINDOW_P (w)
|
|
110
|
5136 && (!NILP (Vminibuf_prompt) || !NILP (Vminibuf_preprompt))
|
|
0
|
5137 && !echo_area_active (f)
|
|
|
5138 && start_pos == BUF_BEGV (b))
|
|
|
5139 {
|
|
|
5140 struct prop_block pb;
|
|
110
|
5141 Lisp_Object string;
|
|
185
|
5142 prop = Dynarr_new (prop_block);
|
|
0
|
5143
|
|
110
|
5144 string = concat2(Vminibuf_preprompt, Vminibuf_prompt);
|
|
0
|
5145 pb.type = PROP_MINIBUF_PROMPT;
|
|
110
|
5146 pb.data.p_string.str = XSTRING_DATA(string);
|
|
|
5147 pb.data.p_string.len = XSTRING_LENGTH(string);
|
|
0
|
5148 Dynarr_add (prop, pb);
|
|
|
5149 }
|
|
|
5150 else
|
|
|
5151 prop = 0;
|
|
|
5152
|
|
404
|
5153 /* Make sure this is set always */
|
|
|
5154 /* Note the conversion at end */
|
|
|
5155 w->window_end_pos[type] = start_pos;
|
|
0
|
5156 while (ypos < yend)
|
|
|
5157 {
|
|
|
5158 struct display_line dl;
|
|
|
5159 struct display_line *dlp;
|
|
|
5160 int local;
|
|
|
5161
|
|
|
5162 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
5163 {
|
|
|
5164 dlp = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
5165 local = 0;
|
|
|
5166 }
|
|
|
5167 else
|
|
|
5168 {
|
|
398
|
5169
|
|
272
|
5170 xzero (dl);
|
|
0
|
5171 dlp = &dl;
|
|
|
5172 local = 1;
|
|
|
5173 }
|
|
|
5174
|
|
|
5175 dlp->bounds = bounds;
|
|
|
5176 dlp->offset = 0;
|
|
398
|
5177 start_pos = generate_display_line (w, dlp, 1, start_pos, &prop, type);
|
|
|
5178
|
|
|
5179 if (yclip > dlp->ascent)
|
|
|
5180 {
|
|
|
5181 /* this should never happen, but if it does just display the
|
|
|
5182 whole line */
|
|
|
5183 yclip = 0;
|
|
|
5184 }
|
|
|
5185
|
|
|
5186 dlp->ypos = (ypos + dlp->ascent) - yclip;
|
|
0
|
5187 ypos = dlp->ypos + dlp->descent;
|
|
|
5188
|
|
398
|
5189 /* See if we've been asked to start midway through a line, for
|
|
|
5190 partial display line scrolling. */
|
|
|
5191 if (yclip)
|
|
|
5192 {
|
|
|
5193 dlp->top_clip = yclip;
|
|
|
5194 yclip = 0;
|
|
|
5195 }
|
|
|
5196 else
|
|
|
5197 dlp->top_clip = 0;
|
|
|
5198
|
|
0
|
5199 if (ypos > yend)
|
|
|
5200 {
|
|
|
5201 int visible_height = dlp->ascent + dlp->descent;
|
|
|
5202
|
|
|
5203 dlp->clip = (ypos - yend);
|
|
398
|
5204 /* Although this seems strange we could have a single very
|
|
|
5205 tall line visible for which we need to account for both
|
|
|
5206 the top clip and the bottom clip. */
|
|
|
5207 visible_height -= (dlp->clip + dlp->top_clip);
|
|
0
|
5208
|
|
|
5209 if (visible_height < VERTICAL_CLIP (w, 1))
|
|
|
5210 {
|
|
|
5211 if (local)
|
|
|
5212 free_display_line (dlp);
|
|
|
5213 break;
|
|
|
5214 }
|
|
|
5215 }
|
|
|
5216 else
|
|
|
5217 dlp->clip = 0;
|
|
|
5218
|
|
|
5219 if (dlp->cursor_elt != -1)
|
|
|
5220 {
|
|
|
5221 /* #### This check is steaming crap. Have to get things
|
|
|
5222 fixed so when create_text_block hits EOB, we're done,
|
|
|
5223 period. */
|
|
|
5224 if (w->last_point_x[type] == -1)
|
|
|
5225 {
|
|
|
5226 w->last_point_x[type] = dlp->cursor_elt;
|
|
|
5227 w->last_point_y[type] = Dynarr_length (dla);
|
|
|
5228 }
|
|
|
5229 else
|
|
|
5230 {
|
|
|
5231 /* #### This means that we've added a cursor at EOB
|
|
|
5232 twice. Yuck oh yuck. */
|
|
|
5233 struct display_block *db =
|
|
|
5234 get_display_block_from_line (dlp, TEXT);
|
|
|
5235
|
|
|
5236 Dynarr_atp (db->runes, dlp->cursor_elt)->cursor_type = NO_CURSOR;
|
|
|
5237 dlp->cursor_elt = -1;
|
|
|
5238 }
|
|
|
5239 }
|
|
|
5240
|
|
|
5241 if (dlp->num_chars > w->max_line_len)
|
|
|
5242 w->max_line_len = dlp->num_chars;
|
|
|
5243
|
|
|
5244 Dynarr_add (dla, *dlp);
|
|
|
5245
|
|
|
5246 /* #### This isn't right, but it is close enough for now. */
|
|
|
5247 w->window_end_pos[type] = start_pos;
|
|
|
5248
|
|
|
5249 /* #### This type of check needs to be done down in the
|
|
|
5250 generate_display_line call. */
|
|
|
5251 if (start_pos > BUF_ZV (b))
|
|
|
5252 break;
|
|
|
5253 }
|
|
|
5254
|
|
|
5255 if (prop)
|
|
384
|
5256 Dynarr_free (prop);
|
|
0
|
5257
|
|
|
5258 /* #### More not quite right, but close enough. */
|
|
404
|
5259 /* Ben sez: apparently window_end_pos[] is measured
|
|
0
|
5260 as the number of characters between the window end and the
|
|
|
5261 end of the buffer? This seems rather weirdo. What's
|
|
404
|
5262 the justification for this?
|
|
|
5263
|
|
|
5264 JV sez: Because BUF_Z (b) would be a good initial value, however
|
|
|
5265 that can change. This representation allows initalizing with 0.
|
|
|
5266 */
|
|
0
|
5267 w->window_end_pos[type] = BUF_Z (b) - w->window_end_pos[type];
|
|
|
5268
|
|
|
5269 if (need_modeline)
|
|
|
5270 {
|
|
|
5271 /* We know that this is the right thing to use because we put it
|
|
|
5272 there when we first started working in this function. */
|
|
|
5273 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
5274 }
|
|
|
5275 }
|
|
|
5276
|
|
|
5277 #define REGEN_INC_FIND_START_END \
|
|
|
5278 do { \
|
|
|
5279 /* Determine start and end of lines. */ \
|
|
|
5280 if (!Dynarr_length (cdla)) \
|
|
|
5281 return 0; \
|
|
|
5282 else \
|
|
|
5283 { \
|
|
|
5284 if (Dynarr_atp (cdla, 0)->modeline && Dynarr_atp (ddla, 0)->modeline) \
|
|
|
5285 { \
|
|
|
5286 dla_start = 1; \
|
|
|
5287 } \
|
|
|
5288 else if (!Dynarr_atp (cdla, 0)->modeline \
|
|
|
5289 && !Dynarr_atp (ddla, 0)->modeline) \
|
|
|
5290 { \
|
|
|
5291 dla_start = 0; \
|
|
|
5292 } \
|
|
|
5293 else \
|
|
|
5294 abort (); /* structs differ */ \
|
|
|
5295 \
|
|
|
5296 dla_end = Dynarr_length (cdla) - 1; \
|
|
|
5297 } \
|
|
|
5298 \
|
|
|
5299 start_pos = (Dynarr_atp (cdla, dla_start)->bufpos \
|
|
|
5300 + Dynarr_atp (cdla, dla_start)->offset); \
|
|
|
5301 /* If this isn't true, then startp has changed and we need to do a \
|
|
|
5302 full regen. */ \
|
|
|
5303 if (startp != start_pos) \
|
|
|
5304 return 0; \
|
|
|
5305 \
|
|
|
5306 /* Point is outside the visible region so give up. */ \
|
|
|
5307 if (pointm < start_pos) \
|
|
|
5308 return 0; \
|
|
|
5309 \
|
|
|
5310 } while (0)
|
|
|
5311
|
|
|
5312 /* This attempts to incrementally update the display structures. It
|
|
|
5313 returns a boolean indicating success or failure. This function is
|
|
|
5314 very similar to regenerate_window_incrementally and is in fact only
|
|
|
5315 called from that function. However, because of the nature of the
|
|
|
5316 changes it deals with it sometimes makes different assumptions
|
|
|
5317 which can lead to success which are much more difficult to make
|
|
|
5318 when dealing with buffer changes. */
|
|
|
5319
|
|
|
5320 static int
|
|
|
5321 regenerate_window_extents_only_changed (struct window *w, Bufpos startp,
|
|
|
5322 Bufpos pointm,
|
|
|
5323 Charcount beg_unchanged,
|
|
|
5324 Charcount end_unchanged)
|
|
|
5325 {
|
|
|
5326 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5327 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
5328 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
5329
|
|
|
5330 int dla_start = 0;
|
|
|
5331 int dla_end, line;
|
|
|
5332 int first_line, last_line;
|
|
|
5333 Bufpos start_pos;
|
|
|
5334 /* Don't define this in the loop where it is used because we
|
|
|
5335 definitely want its value to survive between passes. */
|
|
|
5336 prop_block_dynarr *prop = NULL;
|
|
|
5337
|
|
|
5338 /* If we don't have any buffer change recorded but the modiff flag has
|
|
|
5339 been incremented, then fail. I'm not sure of the exact circumstances
|
|
|
5340 under which this can happen, but I believe that it is probably a
|
|
|
5341 reasonable happening. */
|
|
|
5342 if (!point_visible (w, pointm, CURRENT_DISP)
|
|
|
5343 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b))
|
|
|
5344 return 0;
|
|
|
5345
|
|
|
5346 /* If the cursor is moved we attempt to update it. If we succeed we
|
|
|
5347 go ahead and proceed with the optimization attempt. */
|
|
|
5348 if (!EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5349 || pointm != marker_position (w->last_point[CURRENT_DISP]))
|
|
|
5350 {
|
|
|
5351 struct frame *f = XFRAME (w->frame);
|
|
|
5352 struct device *d = XDEVICE (f->device);
|
|
|
5353 struct frame *sel_f = device_selected_frame (d);
|
|
|
5354 int success = 0;
|
|
|
5355
|
|
|
5356 if (w->last_point_x[CURRENT_DISP] != -1
|
|
|
5357 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
5358 {
|
|
|
5359
|
|
|
5360 if (redisplay_move_cursor (w, pointm, WINDOW_TTY_P (w)))
|
|
|
5361 {
|
|
|
5362 /* Always regenerate the modeline in case it is
|
|
|
5363 displaying the current line or column. */
|
|
|
5364 regenerate_modeline (w);
|
|
|
5365 success = 1;
|
|
|
5366 }
|
|
|
5367 }
|
|
|
5368 else if (w != XWINDOW (FRAME_SELECTED_WINDOW (sel_f)))
|
|
|
5369 {
|
|
|
5370 if (f->modeline_changed)
|
|
|
5371 regenerate_modeline (w);
|
|
|
5372 success = 1;
|
|
|
5373 }
|
|
|
5374
|
|
|
5375 if (!success)
|
|
|
5376 return 0;
|
|
|
5377 }
|
|
|
5378
|
|
|
5379 if (beg_unchanged == -1 && end_unchanged == -1)
|
|
|
5380 return 1;
|
|
|
5381
|
|
|
5382 /* assert: There are no buffer modifications or they are all below the
|
|
|
5383 visible region. We assume that regenerate_window_incrementally has
|
|
|
5384 not called us unless this is true. */
|
|
|
5385
|
|
|
5386 REGEN_INC_FIND_START_END;
|
|
|
5387
|
|
|
5388 /* If the changed are starts before the visible area, give up. */
|
|
|
5389 if (beg_unchanged < startp)
|
|
|
5390 return 0;
|
|
|
5391
|
|
|
5392 /* Find what display line the extent changes first affect. */
|
|
|
5393 line = dla_start;
|
|
|
5394 while (line <= dla_end)
|
|
|
5395 {
|
|
|
5396 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
5397 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
5398 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
5399
|
|
|
5400 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
5401 break;
|
|
|
5402
|
|
|
5403 line++;
|
|
|
5404 }
|
|
|
5405
|
|
|
5406 /* If the changes are below the visible area then if point hasn't
|
|
|
5407 moved return success otherwise fail in order to be safe. */
|
|
|
5408 if (line > dla_end)
|
|
|
5409 {
|
|
|
5410 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5411 && pointm == marker_position (w->last_point[CURRENT_DISP]))
|
|
|
5412 return 1;
|
|
|
5413 else
|
|
|
5414 return 0;
|
|
|
5415 }
|
|
|
5416
|
|
|
5417 /* At this point we know what line the changes first affect. We now
|
|
|
5418 begin redrawing lines as long as we are still in the affected
|
|
|
5419 region and the line's size and positioning don't change.
|
|
|
5420 Otherwise we fail. If we fail we will have altered the desired
|
|
|
5421 structs which could lead to an assertion failure. However, if we
|
|
|
5422 fail the next thing that is going to happen is a full regen so we
|
|
|
5423 will actually end up being safe. */
|
|
|
5424 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
5425 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
5426 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
5427 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
5428
|
|
|
5429 first_line = last_line = line;
|
|
|
5430 while (line <= dla_end)
|
|
|
5431 {
|
|
|
5432 Bufpos old_start, old_end, new_start;
|
|
|
5433 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
5434 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
5435 struct display_block *db;
|
|
|
5436 int initial_size;
|
|
|
5437
|
|
|
5438 assert (cdl->bufpos == ddl->bufpos);
|
|
|
5439 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
5440 assert (cdl->offset == ddl->offset);
|
|
|
5441
|
|
|
5442 db = get_display_block_from_line (ddl, TEXT);
|
|
|
5443 initial_size = Dynarr_length (db->runes);
|
|
|
5444 old_start = ddl->bufpos + ddl->offset;
|
|
|
5445 old_end = ddl->end_bufpos + ddl->offset;
|
|
|
5446
|
|
|
5447 /* If this is the first line being updated and it used
|
|
|
5448 propagation data, fail. Otherwise we'll be okay because
|
|
|
5449 we'll have the necessary propagation data. */
|
|
|
5450 if (line == first_line && ddl->used_prop_data)
|
|
|
5451 return 0;
|
|
|
5452
|
|
|
5453 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
398
|
5454 &prop, DESIRED_DISP);
|
|
0
|
5455 ddl->offset = 0;
|
|
|
5456
|
|
|
5457 /* #### If there is propagated stuff the fail. We could
|
|
|
5458 probably actually deal with this if the line had propagated
|
|
|
5459 information when originally created by a full
|
|
|
5460 regeneration. */
|
|
|
5461 if (prop)
|
|
|
5462 {
|
|
|
5463 Dynarr_free (prop);
|
|
|
5464 return 0;
|
|
|
5465 }
|
|
|
5466
|
|
|
5467 /* If any line position parameters have changed or a
|
|
|
5468 cursor has disappeared or disappeared, fail. */
|
|
|
5469 db = get_display_block_from_line (ddl, TEXT);
|
|
|
5470 if (cdl->ypos != ddl->ypos
|
|
|
5471 || cdl->ascent != ddl->ascent
|
|
|
5472 || cdl->descent != ddl->descent
|
|
398
|
5473 || cdl->top_clip != ddl->top_clip
|
|
0
|
5474 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
5475 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
|
|
|
5476 || old_start != ddl->bufpos
|
|
|
5477 || old_end != ddl->end_bufpos
|
|
|
5478 || initial_size != Dynarr_length (db->runes))
|
|
|
5479 {
|
|
|
5480 return 0;
|
|
|
5481 }
|
|
|
5482
|
|
|
5483 if (ddl->cursor_elt != -1)
|
|
|
5484 {
|
|
|
5485 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
5486 w->last_point_y[DESIRED_DISP] = line;
|
|
|
5487 }
|
|
|
5488
|
|
|
5489 last_line = line;
|
|
|
5490
|
|
|
5491 /* If the extent changes end on the line we just updated then
|
|
|
5492 we're done. Otherwise go on to the next line. */
|
|
|
5493 if (end_unchanged <= ddl->end_bufpos)
|
|
|
5494 break;
|
|
|
5495 else
|
|
|
5496 line++;
|
|
|
5497 }
|
|
|
5498
|
|
|
5499 redisplay_update_line (w, first_line, last_line, 1);
|
|
|
5500 return 1;
|
|
|
5501 }
|
|
|
5502
|
|
|
5503 /* Attempt to update the display data structures based on knowledge of
|
|
|
5504 the changed region in the buffer. Returns a boolean indicating
|
|
|
5505 success or failure. If this function returns a failure then a
|
|
|
5506 regenerate_window _must_ be performed next in order to maintain
|
|
|
5507 invariants located here. */
|
|
|
5508
|
|
|
5509 static int
|
|
|
5510 regenerate_window_incrementally (struct window *w, Bufpos startp,
|
|
|
5511 Bufpos pointm)
|
|
|
5512 {
|
|
|
5513 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5514 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
5515 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
5516 Charcount beg_unchanged, end_unchanged;
|
|
|
5517 Charcount extent_beg_unchanged, extent_end_unchanged;
|
|
|
5518
|
|
|
5519 int dla_start = 0;
|
|
|
5520 int dla_end, line;
|
|
|
5521 Bufpos start_pos;
|
|
|
5522
|
|
|
5523 /* If this function is called, the current and desired structures
|
|
|
5524 had better be identical. If they are not, then that is a bug. */
|
|
|
5525 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
|
|
|
5526
|
|
|
5527 /* We don't handle minibuffer windows yet. The minibuffer prompt
|
|
|
5528 screws us up. */
|
|
|
5529 if (MINI_WINDOW_P (w))
|
|
|
5530 return 0;
|
|
|
5531
|
|
|
5532 extent_beg_unchanged = BUF_EXTENT_BEGIN_UNCHANGED (b);
|
|
|
5533 extent_end_unchanged = (BUF_EXTENT_END_UNCHANGED (b) == -1
|
|
|
5534 ? -1
|
|
|
5535 : BUF_Z (b) - BUF_EXTENT_END_UNCHANGED (b));
|
|
|
5536
|
|
|
5537 /* If nothing has changed in the buffer, then make sure point is ok
|
|
|
5538 and succeed. */
|
|
|
5539 if (BUF_BEGIN_UNCHANGED (b) == -1 && BUF_END_UNCHANGED (b) == -1)
|
|
|
5540 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5541 extent_beg_unchanged,
|
|
|
5542 extent_end_unchanged);
|
|
|
5543
|
|
|
5544 /* We can't deal with deleted newlines. */
|
|
|
5545 if (BUF_NEWLINE_WAS_DELETED (b))
|
|
|
5546 return 0;
|
|
|
5547
|
|
|
5548 beg_unchanged = BUF_BEGIN_UNCHANGED (b);
|
|
|
5549 end_unchanged = (BUF_END_UNCHANGED (b) == -1
|
|
|
5550 ? -1
|
|
|
5551 : BUF_Z (b) - BUF_END_UNCHANGED (b));
|
|
|
5552
|
|
|
5553 REGEN_INC_FIND_START_END;
|
|
|
5554
|
|
|
5555 /* If the changed area starts before the visible area, give up. */
|
|
|
5556 if (beg_unchanged < startp)
|
|
|
5557 return 0;
|
|
|
5558
|
|
|
5559 /* Find what display line the buffer changes first affect. */
|
|
|
5560 line = dla_start;
|
|
|
5561 while (line <= dla_end)
|
|
|
5562 {
|
|
|
5563 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
5564 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
5565 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
5566
|
|
|
5567 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
5568 break;
|
|
|
5569
|
|
|
5570 line++;
|
|
|
5571 }
|
|
|
5572
|
|
|
5573 /* If the changes are below the visible area then if point hasn't
|
|
|
5574 moved return success otherwise fail in order to be safe. */
|
|
|
5575 if (line > dla_end)
|
|
384
|
5576 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5577 extent_beg_unchanged,
|
|
|
5578 extent_end_unchanged);
|
|
0
|
5579 else
|
|
|
5580 /* At this point we know what line the changes first affect. We
|
|
|
5581 now redraw that line. If the changes are contained within it
|
|
|
5582 we are going to succeed and can update just that one line.
|
|
|
5583 Otherwise we fail. If we fail we will have altered the desired
|
|
|
5584 structs which could lead to an assertion failure. However, if
|
|
|
5585 we fail the next thing that is going to happen is a full regen
|
|
|
5586 so we will actually end up being safe. */
|
|
|
5587 {
|
|
|
5588 Bufpos new_start;
|
|
|
5589 prop_block_dynarr *prop = NULL;
|
|
|
5590 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
5591 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
5592
|
|
|
5593 assert (cdl->bufpos == ddl->bufpos);
|
|
|
5594 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
5595 assert (cdl->offset == ddl->offset);
|
|
|
5596
|
|
406
|
5597 /* If the line continues to next display line, fail. */
|
|
|
5598 if (ddl->line_continuation)
|
|
|
5599 return 0;
|
|
0
|
5600
|
|
|
5601 /* If the line was generated using propagation data, fail. */
|
|
|
5602 if (ddl->used_prop_data)
|
|
|
5603 return 0;
|
|
|
5604
|
|
|
5605 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
398
|
5606 &prop, DESIRED_DISP);
|
|
0
|
5607 ddl->offset = 0;
|
|
|
5608
|
|
|
5609 /* If there is propagated stuff then it is pretty much a
|
|
|
5610 guarantee that more than just the one line is affected. */
|
|
|
5611 if (prop)
|
|
|
5612 {
|
|
|
5613 Dynarr_free (prop);
|
|
|
5614 return 0;
|
|
|
5615 }
|
|
|
5616
|
|
406
|
5617 /* If the line continues to next display line, fail. */
|
|
|
5618 if (ddl->line_continuation)
|
|
|
5619 return 0;
|
|
0
|
5620
|
|
|
5621 /* If any line position parameters have changed or a
|
|
|
5622 cursor has disappeared or disappeared, fail. */
|
|
|
5623 if (cdl->ypos != ddl->ypos
|
|
|
5624 || cdl->ascent != ddl->ascent
|
|
|
5625 || cdl->descent != ddl->descent
|
|
398
|
5626 || cdl->top_clip != ddl->top_clip
|
|
0
|
5627 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
5628 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1))
|
|
|
5629 {
|
|
|
5630 return 0;
|
|
|
5631 }
|
|
|
5632
|
|
|
5633 /* If the changed area also ends on this line, then we may be in
|
|
|
5634 business. Update everything and return success. */
|
|
|
5635 if (end_unchanged >= ddl->bufpos && end_unchanged <= ddl->end_bufpos)
|
|
|
5636 {
|
|
|
5637 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
5638 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
5639 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp),
|
|
|
5640 w->buffer);
|
|
|
5641 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm),
|
|
|
5642 w->buffer);
|
|
|
5643
|
|
|
5644 if (ddl->cursor_elt != -1)
|
|
|
5645 {
|
|
|
5646 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
5647 w->last_point_y[DESIRED_DISP] = line;
|
|
|
5648 }
|
|
|
5649
|
|
|
5650 redisplay_update_line (w, line, line, 1);
|
|
|
5651 regenerate_modeline (w);
|
|
|
5652
|
|
|
5653 /* #### For now we just flush the cache until this has been
|
|
|
5654 tested. After that is done, this should correct the
|
|
|
5655 cache directly. */
|
|
|
5656 Dynarr_reset (w->line_start_cache);
|
|
|
5657
|
|
|
5658 /* Adjust the extent changed boundaries to remove any
|
|
|
5659 overlap with the buffer changes since we've just
|
|
|
5660 successfully updated that area. */
|
|
|
5661 if (extent_beg_unchanged != -1
|
|
|
5662 && extent_beg_unchanged >= beg_unchanged
|
|
|
5663 && extent_beg_unchanged < end_unchanged)
|
|
|
5664 extent_beg_unchanged = end_unchanged;
|
|
|
5665
|
|
|
5666 if (extent_end_unchanged != -1
|
|
|
5667 && extent_end_unchanged >= beg_unchanged
|
|
|
5668 && extent_end_unchanged < end_unchanged)
|
|
|
5669 extent_end_unchanged = beg_unchanged - 1;
|
|
|
5670
|
|
|
5671 if (extent_end_unchanged <= extent_beg_unchanged)
|
|
|
5672 extent_beg_unchanged = extent_end_unchanged = -1;
|
|
|
5673
|
|
|
5674 /* This could lead to odd results if it fails, but since the
|
|
|
5675 buffer changes update succeeded this probably will to.
|
|
|
5676 We already know that the extent changes start at or after
|
|
|
5677 the line because we checked before entering the loop. */
|
|
|
5678 if (extent_beg_unchanged != -1
|
|
|
5679 && extent_end_unchanged != -1
|
|
|
5680 && ((extent_beg_unchanged < ddl->bufpos)
|
|
|
5681 || (extent_end_unchanged > ddl->end_bufpos)))
|
|
384
|
5682 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5683 extent_beg_unchanged,
|
|
|
5684 extent_end_unchanged);
|
|
0
|
5685 else
|
|
|
5686 return 1;
|
|
|
5687 }
|
|
|
5688 }
|
|
|
5689
|
|
|
5690 /* Oh, well. */
|
|
|
5691 return 0;
|
|
|
5692 }
|
|
|
5693
|
|
|
5694 /* Given a window and a point, update the given display lines such
|
|
243
|
5695 that point is displayed in the middle of the window.
|
|
185
|
5696 Return the window's new start position. */
|
|
|
5697
|
|
|
5698 static Bufpos
|
|
0
|
5699 regenerate_window_point_center (struct window *w, Bufpos point, int type)
|
|
|
5700 {
|
|
|
5701 Bufpos startp;
|
|
|
5702
|
|
|
5703 /* We need to make sure that the modeline is generated so that the
|
|
|
5704 window height can be calculated correctly. */
|
|
|
5705 ensure_modeline_generated (w, type);
|
|
|
5706
|
|
|
5707 startp = start_with_line_at_pixpos (w, point, window_half_pixpos (w));
|
|
|
5708 regenerate_window (w, startp, point, type);
|
|
|
5709 Fset_marker (w->start[type], make_int (startp), w->buffer);
|
|
|
5710
|
|
185
|
5711 return startp;
|
|
0
|
5712 }
|
|
|
5713
|
|
|
5714 /* Given a window and a set of display lines, return a boolean
|
|
|
5715 indicating whether the given point is contained within. */
|
|
|
5716
|
|
|
5717 static int
|
|
|
5718 point_visible (struct window *w, Bufpos point, int type)
|
|
|
5719 {
|
|
|
5720 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5721 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
5722 int first_line;
|
|
|
5723
|
|
|
5724 if (Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
5725 first_line = 1;
|
|
|
5726 else
|
|
|
5727 first_line = 0;
|
|
|
5728
|
|
|
5729 if (Dynarr_length (dla) > first_line)
|
|
|
5730 {
|
|
|
5731 Bufpos start, end;
|
|
|
5732 struct display_line *dl = Dynarr_atp (dla, first_line);
|
|
|
5733
|
|
|
5734 start = dl->bufpos;
|
|
|
5735 end = BUF_Z (b) - w->window_end_pos[type] - 1;
|
|
|
5736
|
|
|
5737 if (point >= start && point <= end)
|
|
|
5738 {
|
|
|
5739 if (!MINI_WINDOW_P (w) && scroll_on_clipped_lines)
|
|
|
5740 {
|
|
|
5741 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
5742
|
|
|
5743 if (point >= (dl->bufpos + dl->offset)
|
|
|
5744 && point <= (dl->end_bufpos + dl->offset))
|
|
173
|
5745 return !dl->clip;
|
|
0
|
5746 else
|
|
|
5747 return 1;
|
|
|
5748 }
|
|
|
5749 else
|
|
|
5750 return 1;
|
|
|
5751 }
|
|
|
5752 else
|
|
|
5753 return 0;
|
|
|
5754 }
|
|
|
5755 else
|
|
|
5756 return 0;
|
|
|
5757 }
|
|
|
5758
|
|
|
5759 /* Return pixel position the middle of the window, not including the
|
|
|
5760 modeline and any potential horizontal scrollbar. */
|
|
|
5761
|
|
|
5762 int
|
|
|
5763 window_half_pixpos (struct window *w)
|
|
|
5764 {
|
|
173
|
5765 return WINDOW_TEXT_TOP (w) + (WINDOW_TEXT_HEIGHT (w) >> 1);
|
|
0
|
5766 }
|
|
|
5767
|
|
|
5768 /* Return the display line which is currently in the middle of the
|
|
|
5769 window W for display lines TYPE. */
|
|
|
5770
|
|
|
5771 int
|
|
|
5772 line_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
5773 {
|
|
|
5774 display_line_dynarr *dla;
|
|
|
5775 int half;
|
|
|
5776 int elt;
|
|
|
5777 int first_elt = (MINI_WINDOW_P (w) ? 0 : 1);
|
|
|
5778
|
|
|
5779 if (type == CMOTION_DISP)
|
|
|
5780 regenerate_window (w, start, point, type);
|
|
|
5781
|
|
|
5782 dla = window_display_lines (w, type);
|
|
|
5783 half = window_half_pixpos (w);
|
|
|
5784
|
|
|
5785 for (elt = first_elt; elt < Dynarr_length (dla); elt++)
|
|
|
5786 {
|
|
|
5787 struct display_line *dl = Dynarr_atp (dla, elt);
|
|
|
5788 int line_bot = dl->ypos + dl->descent;
|
|
|
5789
|
|
|
5790 if (line_bot > half)
|
|
|
5791 return elt;
|
|
|
5792 }
|
|
|
5793
|
|
|
5794 /* We may not have a line at the middle if the end of the buffer is
|
|
|
5795 being displayed. */
|
|
|
5796 return -1;
|
|
|
5797 }
|
|
|
5798
|
|
|
5799 /* Return a value for point that would place it at the beginning of
|
|
|
5800 the line which is in the middle of the window. */
|
|
|
5801
|
|
|
5802 Bufpos
|
|
|
5803 point_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
5804 {
|
|
|
5805 /* line_at_center will regenerate the display structures, if necessary. */
|
|
|
5806 int line = line_at_center (w, type, start, point);
|
|
|
5807
|
|
|
5808 if (line == -1)
|
|
|
5809 return BUF_ZV (XBUFFER (w->buffer));
|
|
|
5810 else
|
|
|
5811 {
|
|
|
5812 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
5813 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
5814
|
|
|
5815 return dl->bufpos;
|
|
|
5816 }
|
|
|
5817 }
|
|
|
5818
|
|
|
5819 /* For a given window, ensure that the current visual representation
|
|
|
5820 is accurate. */
|
|
|
5821
|
|
|
5822 static void
|
|
|
5823 redisplay_window (Lisp_Object window, int skip_selected)
|
|
|
5824 {
|
|
|
5825 struct window *w = XWINDOW (window);
|
|
|
5826 struct frame *f = XFRAME (w->frame);
|
|
|
5827 struct device *d = XDEVICE (f->device);
|
|
|
5828 Lisp_Object old_buffer = w->buffer;
|
|
276
|
5829 Lisp_Object the_buffer = w->buffer;
|
|
0
|
5830 struct buffer *b;
|
|
|
5831 int echo_active = 0;
|
|
|
5832 int startp = 1;
|
|
|
5833 int pointm;
|
|
276
|
5834 int old_startp = 1;
|
|
|
5835 int old_pointm = 1;
|
|
151
|
5836 int selected_in_its_frame;
|
|
|
5837 int selected_globally;
|
|
0
|
5838 int skip_output = 0;
|
|
|
5839 int truncation_changed;
|
|
|
5840 int inactive_minibuffer =
|
|
|
5841 (MINI_WINDOW_P (w) &&
|
|
|
5842 (f != device_selected_frame (d)) &&
|
|
|
5843 !is_surrogate_for_selected_frame (f));
|
|
|
5844
|
|
|
5845 /* #### In the new world this function actually does a bunch of
|
|
|
5846 optimizations such as buffer-based scrolling, but none of that is
|
|
|
5847 implemented yet. */
|
|
|
5848
|
|
|
5849 /* If this is a combination window, do its children; that's all.
|
|
|
5850 The selected window is always a leaf so we don't check for
|
|
|
5851 skip_selected here. */
|
|
|
5852 if (!NILP (w->vchild))
|
|
|
5853 {
|
|
|
5854 redisplay_windows (w->vchild, skip_selected);
|
|
|
5855 return;
|
|
|
5856 }
|
|
|
5857 if (!NILP (w->hchild))
|
|
|
5858 {
|
|
|
5859 redisplay_windows (w->hchild, skip_selected);
|
|
|
5860 return;
|
|
|
5861 }
|
|
|
5862
|
|
|
5863 /* Is this window the selected window on its frame? */
|
|
151
|
5864 selected_in_its_frame = (w == XWINDOW (FRAME_SELECTED_WINDOW (f)));
|
|
|
5865 selected_globally =
|
|
|
5866 selected_in_its_frame &&
|
|
|
5867 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
5868 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d &&
|
|
|
5869 XFRAME(DEVICE_SELECTED_FRAME(d)) == f;
|
|
|
5870 if (skip_selected && selected_in_its_frame)
|
|
0
|
5871 return;
|
|
|
5872
|
|
|
5873 /* It is possible that the window is not fully initialized yet. */
|
|
|
5874 if (NILP (w->buffer))
|
|
|
5875 return;
|
|
|
5876
|
|
|
5877 if (MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
5878 {
|
|
276
|
5879 w->buffer = the_buffer = Vecho_area_buffer;
|
|
0
|
5880 echo_active = 1;
|
|
|
5881 }
|
|
|
5882
|
|
|
5883 b = XBUFFER (w->buffer);
|
|
|
5884
|
|
|
5885 if (echo_active)
|
|
276
|
5886 {
|
|
|
5887 old_pointm = selected_globally
|
|
|
5888 ? BUF_PT (b)
|
|
|
5889 : marker_position (w->pointm[CURRENT_DISP]);
|
|
|
5890 pointm = 1;
|
|
|
5891 }
|
|
0
|
5892 else
|
|
|
5893 {
|
|
151
|
5894 if (selected_globally)
|
|
0
|
5895 {
|
|
|
5896 pointm = BUF_PT (b);
|
|
|
5897 }
|
|
|
5898 else
|
|
|
5899 {
|
|
|
5900 pointm = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
5901
|
|
|
5902 if (pointm < BUF_BEGV (b))
|
|
|
5903 pointm = BUF_BEGV (b);
|
|
|
5904 else if (pointm > BUF_ZV (b))
|
|
|
5905 pointm = BUF_ZV (b);
|
|
|
5906 }
|
|
|
5907 }
|
|
276
|
5908 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm), the_buffer);
|
|
0
|
5909
|
|
398
|
5910 /* If the buffer has changed we have to invalidate all of our face
|
|
0
|
5911 cache elements. */
|
|
|
5912 if ((!echo_active && b != window_display_buffer (w))
|
|
|
5913 || !Dynarr_length (w->face_cachels)
|
|
|
5914 || f->faces_changed)
|
|
|
5915 reset_face_cachels (w);
|
|
|
5916 else
|
|
|
5917 mark_face_cachels_as_not_updated (w);
|
|
|
5918
|
|
398
|
5919 /* Ditto the glyph cache elements, although we do *not* invalidate
|
|
|
5920 the cache purely because glyphs have changed - this is now
|
|
|
5921 handled by the dirty flag.*/
|
|
0
|
5922 if ((!echo_active && b != window_display_buffer (w))
|
|
398
|
5923 || !Dynarr_length (w->glyph_cachels) || f->faces_changed)
|
|
0
|
5924 reset_glyph_cachels (w);
|
|
|
5925 else
|
|
|
5926 mark_glyph_cachels_as_not_updated (w);
|
|
|
5927
|
|
|
5928 /* If the marker's buffer is not the window's buffer, then we need
|
|
|
5929 to find a new starting position. */
|
|
|
5930 if (!MINI_WINDOW_P (w)
|
|
|
5931 && !EQ (Fmarker_buffer (w->start[CURRENT_DISP]), w->buffer))
|
|
|
5932 {
|
|
185
|
5933 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
5934
|
|
|
5935 goto regeneration_done;
|
|
|
5936 }
|
|
|
5937
|
|
|
5938 if (echo_active)
|
|
276
|
5939 {
|
|
|
5940 old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
5941 startp = 1;
|
|
|
5942 }
|
|
0
|
5943 else
|
|
|
5944 {
|
|
|
5945 startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
5946 if (startp < BUF_BEGV (b))
|
|
|
5947 startp = BUF_BEGV (b);
|
|
|
5948 else if (startp > BUF_ZV (b))
|
|
|
5949 startp = BUF_ZV (b);
|
|
|
5950 }
|
|
276
|
5951 Fset_marker (w->start[DESIRED_DISP], make_int (startp), the_buffer);
|
|
0
|
5952
|
|
|
5953 truncation_changed = (find_window_mirror (w)->truncate_win !=
|
|
|
5954 window_truncation_on (w));
|
|
|
5955
|
|
|
5956 /* If w->force_start is set, then some function set w->start and we
|
|
|
5957 should display from there and change point, if necessary, to
|
|
|
5958 ensure that it is visible. */
|
|
|
5959 if (w->force_start || inactive_minibuffer)
|
|
|
5960 {
|
|
|
5961 w->force_start = 0;
|
|
|
5962 w->last_modified[DESIRED_DISP] = Qzero;
|
|
|
5963 w->last_facechange[DESIRED_DISP] = Qzero;
|
|
|
5964
|
|
|
5965 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5966
|
|
|
5967 if (!point_visible (w, pointm, DESIRED_DISP) && !inactive_minibuffer)
|
|
|
5968 {
|
|
|
5969 pointm = point_at_center (w, DESIRED_DISP, 0, 0);
|
|
|
5970
|
|
151
|
5971 if (selected_globally)
|
|
0
|
5972 BUF_SET_PT (b, pointm);
|
|
|
5973
|
|
|
5974 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm),
|
|
276
|
5975 the_buffer);
|
|
0
|
5976
|
|
380
|
5977 /* #### BUFU amounts of overkill just to get the cursor
|
|
0
|
5978 location marked properly. FIX ME FIX ME FIX ME */
|
|
|
5979 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5980 }
|
|
|
5981
|
|
|
5982 goto regeneration_done;
|
|
|
5983 }
|
|
|
5984
|
|
|
5985 /* If nothing has changed since the last redisplay, then we just
|
|
|
5986 need to make sure that point is still visible. */
|
|
|
5987 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
5988 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)
|
|
|
5989 && pointm >= startp
|
|
|
5990 /* This check is to make sure we restore the minibuffer after a
|
|
|
5991 temporary change to the echo area. */
|
|
|
5992 && !(MINI_WINDOW_P (w) && f->buffers_changed)
|
|
|
5993 && !f->frame_changed
|
|
373
|
5994 && !truncation_changed
|
|
|
5995 /* check whether start is really at the begining of a line GE */
|
|
|
5996 && (!w->start_at_line_beg || beginning_of_line_p (b, startp))
|
|
|
5997 )
|
|
0
|
5998 {
|
|
|
5999 /* Check if the cursor has actually moved. */
|
|
|
6000 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
6001 && pointm == marker_position (w->last_point[CURRENT_DISP])
|
|
151
|
6002 && selected_globally
|
|
0
|
6003 && !w->windows_changed
|
|
|
6004 && !f->clip_changed
|
|
|
6005 && !f->extents_changed
|
|
|
6006 && !f->faces_changed
|
|
269
|
6007 && !f->glyphs_changed
|
|
384
|
6008 && !f->subwindows_changed
|
|
400
|
6009 /* && !f->subwindows_state_changed*/
|
|
0
|
6010 && !f->point_changed
|
|
|
6011 && !f->windows_structure_changed)
|
|
|
6012 {
|
|
|
6013 /* If not, we're done. */
|
|
|
6014 if (f->modeline_changed)
|
|
|
6015 regenerate_modeline (w);
|
|
|
6016
|
|
|
6017 skip_output = 1;
|
|
|
6018 goto regeneration_done;
|
|
|
6019 }
|
|
|
6020 else
|
|
|
6021 {
|
|
|
6022 /* If the new point is visible in the redisplay structures,
|
|
|
6023 then let the output update routines handle it, otherwise
|
|
|
6024 do things the hard way. */
|
|
|
6025 if (!w->windows_changed
|
|
|
6026 && !f->clip_changed
|
|
|
6027 && !f->extents_changed
|
|
|
6028 && !f->faces_changed
|
|
269
|
6029 && !f->glyphs_changed
|
|
384
|
6030 && !f->subwindows_changed
|
|
400
|
6031 /* && !f->subwindows_state_changed*/
|
|
0
|
6032 && !f->windows_structure_changed)
|
|
|
6033 {
|
|
|
6034 if (point_visible (w, pointm, CURRENT_DISP)
|
|
|
6035 && w->last_point_x[CURRENT_DISP] != -1
|
|
|
6036 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
6037 {
|
|
|
6038 if (redisplay_move_cursor (w, pointm, FRAME_TTY_P (f)))
|
|
|
6039 {
|
|
|
6040 /* Always regenerate in case it is displaying
|
|
|
6041 the current line or column. */
|
|
|
6042 regenerate_modeline (w);
|
|
|
6043
|
|
|
6044 skip_output = 1;
|
|
|
6045 goto regeneration_done;
|
|
|
6046 }
|
|
|
6047 }
|
|
151
|
6048 else if (!selected_in_its_frame && !f->point_changed)
|
|
0
|
6049 {
|
|
|
6050 if (f->modeline_changed)
|
|
|
6051 regenerate_modeline (w);
|
|
|
6052
|
|
|
6053 skip_output = 1;
|
|
|
6054 goto regeneration_done;
|
|
|
6055 }
|
|
|
6056 }
|
|
|
6057
|
|
|
6058 /* If we weren't able to take the shortcut method, then use
|
|
|
6059 the brute force method. */
|
|
|
6060 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6061
|
|
|
6062 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6063 goto regeneration_done;
|
|
|
6064 }
|
|
|
6065 }
|
|
|
6066
|
|
|
6067 /* Check if the starting point is no longer at the beginning of a
|
|
|
6068 line, in which case find a new starting point. We also recenter
|
|
|
6069 if our start position is equal to point-max. Otherwise we'll end
|
|
|
6070 up with a blank window. */
|
|
|
6071 else if (((w->start_at_line_beg || MINI_WINDOW_P (w))
|
|
|
6072 && !(startp == BUF_BEGV (b)
|
|
|
6073 || BUF_FETCH_CHAR (b, startp - 1) == '\n'))
|
|
|
6074 || (pointm == startp &&
|
|
|
6075 EQ (Fmarker_buffer (w->last_start[CURRENT_DISP]), w->buffer) &&
|
|
|
6076 startp < marker_position (w->last_start[CURRENT_DISP]))
|
|
|
6077 || (startp == BUF_ZV (b)))
|
|
|
6078 {
|
|
185
|
6079 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
6080
|
|
|
6081 goto regeneration_done;
|
|
|
6082 }
|
|
|
6083 /* See if we can update the data structures locally based on
|
|
|
6084 knowledge of what changed in the buffer. */
|
|
|
6085 else if (!w->windows_changed
|
|
|
6086 && !f->clip_changed
|
|
|
6087 && !f->faces_changed
|
|
269
|
6088 && !f->glyphs_changed
|
|
384
|
6089 && !f->subwindows_changed
|
|
400
|
6090 /* && !f->subwindows_state_changed*/
|
|
0
|
6091 && !f->windows_structure_changed
|
|
|
6092 && !f->frame_changed
|
|
|
6093 && !truncation_changed
|
|
|
6094 && pointm >= startp
|
|
|
6095 && regenerate_window_incrementally (w, startp, pointm))
|
|
|
6096 {
|
|
|
6097 if (f->modeline_changed
|
|
|
6098 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b)
|
|
|
6099 || XINT (w->last_facechange[CURRENT_DISP]) < BUF_FACECHANGE (b))
|
|
|
6100 regenerate_modeline (w);
|
|
|
6101
|
|
|
6102 skip_output = 1;
|
|
|
6103 goto regeneration_done;
|
|
|
6104 }
|
|
|
6105 /* #### This is where a check for structure based scrolling would go. */
|
|
|
6106 /* If all else fails, try just regenerating and see what happens. */
|
|
|
6107 else
|
|
|
6108 {
|
|
|
6109 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6110
|
|
|
6111 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6112 goto regeneration_done;
|
|
|
6113 }
|
|
|
6114
|
|
|
6115 /* We still haven't gotten the window regenerated with point
|
|
|
6116 visible. Next we try scrolling a little and see if point comes
|
|
|
6117 back onto the screen. */
|
|
274
|
6118 if (scroll_step > 0)
|
|
0
|
6119 {
|
|
195
|
6120 int scrolled = scroll_conservatively;
|
|
|
6121 for (; scrolled >= 0; scrolled -= scroll_step)
|
|
|
6122 {
|
|
|
6123 startp = vmotion (w, startp,
|
|
|
6124 (pointm < startp) ? -scroll_step : scroll_step, 0);
|
|
|
6125 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6126
|
|
|
6127 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6128 goto regeneration_done;
|
|
|
6129 }
|
|
0
|
6130 }
|
|
|
6131
|
|
|
6132 /* We still haven't managed to get the screen drawn with point on
|
|
|
6133 the screen, so just center it and be done with it. */
|
|
185
|
6134 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
6135
|
|
|
6136
|
|
|
6137 regeneration_done:
|
|
|
6138
|
|
|
6139 /* If the window's frame is changed then reset the current display
|
|
|
6140 lines in order to force a full repaint. */
|
|
|
6141 if (f->frame_changed)
|
|
|
6142 {
|
|
|
6143 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
|
|
|
6144
|
|
|
6145 Dynarr_reset (cla);
|
|
|
6146 }
|
|
|
6147
|
|
|
6148 /* Must do this before calling redisplay_output_window because it
|
|
|
6149 sets some markers on the window. */
|
|
276
|
6150 if (echo_active)
|
|
|
6151 {
|
|
|
6152 w->buffer = old_buffer;
|
|
|
6153 Fset_marker (w->pointm[DESIRED_DISP], make_int (old_pointm), old_buffer);
|
|
|
6154 Fset_marker (w->start[DESIRED_DISP], make_int (old_startp), old_buffer);
|
|
|
6155 }
|
|
0
|
6156
|
|
|
6157 /* These also have to be set before calling redisplay_output_window
|
|
|
6158 since it sets the CURRENT_DISP values based on them. */
|
|
|
6159 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
6160 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
6161 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
6162 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
6163
|
|
|
6164 if (!skip_output)
|
|
|
6165 {
|
|
|
6166 Bufpos start = marker_position (w->start[DESIRED_DISP]);
|
|
|
6167 Bufpos end = (w->window_end_pos[DESIRED_DISP] == -1
|
|
|
6168 ? BUF_ZV (b)
|
|
|
6169 : BUF_Z (b) - w->window_end_pos[DESIRED_DISP] - 1);
|
|
398
|
6170 /* Don't pollute the cache if not sure if we are correct */
|
|
|
6171 if (w->start_at_line_beg)
|
|
|
6172 update_line_start_cache (w, start, end, pointm, 1);
|
|
0
|
6173 redisplay_output_window (w);
|
|
249
|
6174 /*
|
|
|
6175 * If we just displayed the echo area, the line start cache is
|
|
380
|
6176 * no longer valid, because the minibuffer window is associated
|
|
249
|
6177 * with the window now.
|
|
|
6178 */
|
|
|
6179 if (echo_active)
|
|
|
6180 w->line_cache_last_updated = make_int (-1);
|
|
0
|
6181 }
|
|
|
6182
|
|
|
6183 /* #### This should be dependent on face changes and will need to be
|
|
|
6184 somewhere else once tty updates occur on a per-frame basis. */
|
|
|
6185 mark_face_cachels_as_clean (w);
|
|
|
6186
|
|
398
|
6187 /* The glyph cachels only get dirty if someone changed something.
|
|
|
6188 Since redisplay has now effectively ended we can reset the dirty
|
|
|
6189 flag since everything must be up-to-date. */
|
|
|
6190 if (glyphs_changed)
|
|
|
6191 mark_glyph_cachels_as_clean (w);
|
|
|
6192
|
|
0
|
6193 w->windows_changed = 0;
|
|
|
6194 }
|
|
|
6195
|
|
|
6196 /* Call buffer_reset_changes for all buffers present in any window
|
|
|
6197 currently visible in all frames on all devices. #### There has to
|
|
|
6198 be a better way to do this. */
|
|
|
6199
|
|
|
6200 static int
|
|
|
6201 reset_buffer_changes_mapfun (struct window *w, void *ignored_closure)
|
|
|
6202 {
|
|
|
6203 buffer_reset_changes (XBUFFER (w->buffer));
|
|
|
6204 return 0;
|
|
|
6205 }
|
|
|
6206
|
|
|
6207 static void
|
|
|
6208 reset_buffer_changes (void)
|
|
|
6209 {
|
|
|
6210 Lisp_Object frmcons, devcons, concons;
|
|
|
6211
|
|
|
6212 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
6213 {
|
|
|
6214 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
6215
|
|
108
|
6216 if (FRAME_REPAINT_P (f))
|
|
0
|
6217 map_windows (f, reset_buffer_changes_mapfun, 0);
|
|
|
6218 }
|
|
|
6219 }
|
|
|
6220
|
|
|
6221 /* Ensure that all windows underneath the given window in the window
|
|
|
6222 hierarchy are correctly displayed. */
|
|
|
6223
|
|
|
6224 static void
|
|
|
6225 redisplay_windows (Lisp_Object window, int skip_selected)
|
|
|
6226 {
|
|
|
6227 for (; !NILP (window) ; window = XWINDOW (window)->next)
|
|
|
6228 {
|
|
|
6229 redisplay_window (window, skip_selected);
|
|
|
6230 }
|
|
|
6231 }
|
|
|
6232
|
|
|
6233 static int
|
|
|
6234 call_redisplay_end_triggers (struct window *w, void *closure)
|
|
|
6235 {
|
|
|
6236 Bufpos lrpos = w->last_redisplay_pos;
|
|
|
6237 w->last_redisplay_pos = 0;
|
|
|
6238 if (!NILP (w->buffer)
|
|
|
6239 && !NILP (w->redisplay_end_trigger)
|
|
|
6240 && lrpos > 0)
|
|
|
6241 {
|
|
|
6242 Bufpos pos;
|
|
|
6243
|
|
|
6244 if (MARKERP (w->redisplay_end_trigger)
|
|
|
6245 && XMARKER (w->redisplay_end_trigger)->buffer != 0)
|
|
|
6246 pos = marker_position (w->redisplay_end_trigger);
|
|
|
6247 else if (INTP (w->redisplay_end_trigger))
|
|
|
6248 pos = XINT (w->redisplay_end_trigger);
|
|
|
6249 else
|
|
|
6250 {
|
|
|
6251 w->redisplay_end_trigger = Qnil;
|
|
|
6252 return 0;
|
|
|
6253 }
|
|
|
6254
|
|
|
6255 if (lrpos >= pos)
|
|
|
6256 {
|
|
272
|
6257 Lisp_Object window;
|
|
0
|
6258 XSETWINDOW (window, w);
|
|
|
6259 va_run_hook_with_args_in_buffer (XBUFFER (w->buffer),
|
|
|
6260 Qredisplay_end_trigger_functions,
|
|
|
6261 2, window,
|
|
|
6262 w->redisplay_end_trigger);
|
|
|
6263 w->redisplay_end_trigger = Qnil;
|
|
|
6264 }
|
|
|
6265 }
|
|
|
6266
|
|
|
6267 return 0;
|
|
|
6268 }
|
|
|
6269
|
|
|
6270 /* Ensure that all windows on the given frame are correctly displayed. */
|
|
|
6271
|
|
404
|
6272 int
|
|
0
|
6273 redisplay_frame (struct frame *f, int preemption_check)
|
|
|
6274 {
|
|
|
6275 struct device *d = XDEVICE (f->device);
|
|
|
6276
|
|
|
6277 if (preemption_check)
|
|
|
6278 {
|
|
|
6279 /* The preemption check itself takes a lot of time,
|
|
|
6280 so normally don't do it here. We do it if called
|
|
|
6281 from Lisp, though (`redisplay-frame'). */
|
|
|
6282 int preempted;
|
|
|
6283
|
|
|
6284 REDISPLAY_PREEMPTION_CHECK;
|
|
|
6285 if (preempted)
|
|
|
6286 return 1;
|
|
|
6287 }
|
|
|
6288
|
|
406
|
6289 if (!internal_equal (f->old_buffer_alist, f->buffer_alist, 0))
|
|
|
6290 {
|
|
|
6291 Lisp_Object frame;
|
|
|
6292
|
|
|
6293 f->old_buffer_alist = Freplace_list (f->old_buffer_alist,
|
|
|
6294 f->buffer_alist);
|
|
|
6295 XSETFRAME (frame, f);
|
|
|
6296 va_run_hook_with_args (Qbuffer_list_changed_hook, 1, frame);
|
|
|
6297 }
|
|
|
6298
|
|
0
|
6299 /* Before we put a hold on frame size changes, attempt to process
|
|
|
6300 any which are already pending. */
|
|
|
6301 if (f->size_change_pending)
|
|
|
6302 change_frame_size (f, f->new_height, f->new_width, 0);
|
|
|
6303
|
|
282
|
6304 /* If frame size might need to be changed, due to changed size
|
|
380
|
6305 of toolbars, scrollbars etc, change it now */
|
|
282
|
6306 if (f->size_slipped)
|
|
|
6307 {
|
|
|
6308 adjust_frame_size (f);
|
|
|
6309 assert (!f->size_slipped);
|
|
|
6310 }
|
|
380
|
6311
|
|
0
|
6312 /* The menubar, toolbar, and icon updates must be done before
|
|
|
6313 hold_frame_size_changes is called and we are officially
|
|
|
6314 'in_display'. They may eval lisp code which may call Fsignal.
|
|
|
6315 If in_display is set Fsignal will abort. */
|
|
|
6316
|
|
|
6317 #ifdef HAVE_MENUBARS
|
|
|
6318 /* Update the menubar. It is done first since it could change
|
|
|
6319 the menubar's visibility. This way we avoid having flashing
|
|
|
6320 caused by an Expose event generated by the visibility change
|
|
|
6321 being handled. */
|
|
|
6322 update_frame_menubars (f);
|
|
183
|
6323 #endif /* HAVE_MENUBARS */
|
|
0
|
6324 #ifdef HAVE_TOOLBARS
|
|
|
6325 /* Update the toolbars. */
|
|
|
6326 update_frame_toolbars (f);
|
|
183
|
6327 #endif /* HAVE_TOOLBARS */
|
|
404
|
6328 /* Gutter update proper has to be done inside display when no frame
|
|
|
6329 size changes can occur, thus we separately update the gutter
|
|
|
6330 geometry here if it needs it. */
|
|
|
6331 update_frame_gutter_geometry (f);
|
|
0
|
6332
|
|
398
|
6333 /* If we clear the frame we have to force its contents to be redrawn. */
|
|
|
6334 if (f->clear)
|
|
|
6335 f->frame_changed = 1;
|
|
|
6336
|
|
404
|
6337 /* Invalidate the subwindow cache. We use subwindows_changed here to
|
|
398
|
6338 cause subwindows to get instantiated. This is because
|
|
|
6339 subwindows_state_changed is less strict - dealing with things
|
|
|
6340 like the clicked state of button. We have to do this before
|
|
|
6341 redisplaying the gutters as subwindows get unmapped in the
|
|
|
6342 process.*/
|
|
404
|
6343 if (f->frame_changed || f->subwindows_changed)
|
|
398
|
6344 {
|
|
|
6345 reset_subwindow_cachels (f);
|
|
|
6346 /* we have to do this so the gutter gets regenerated. */
|
|
|
6347 reset_gutter_display_lines (f);
|
|
|
6348 }
|
|
|
6349 else
|
|
|
6350 mark_subwindow_cachels_as_not_updated (f);
|
|
400
|
6351
|
|
0
|
6352 hold_frame_size_changes ();
|
|
|
6353
|
|
|
6354 /* ----------------- BEGIN CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
6355 /* Within this section, we are defenseless and assume that the
|
|
|
6356 following cannot happen:
|
|
|
6357
|
|
|
6358 1) garbage collection
|
|
|
6359 2) Lisp code evaluation
|
|
|
6360 3) frame size changes
|
|
|
6361
|
|
|
6362 We ensure (3) by calling hold_frame_size_changes(), which
|
|
|
6363 will cause any pending frame size changes to get put on hold
|
|
|
6364 till after the end of the critical section. (1) follows
|
|
|
6365 automatically if (2) is met. #### Unfortunately, there are
|
|
|
6366 some places where Lisp code can be called within this section.
|
|
|
6367 We need to remove them.
|
|
|
6368
|
|
|
6369 If Fsignal() is called during this critical section, we
|
|
|
6370 will abort().
|
|
|
6371
|
|
|
6372 If garbage collection is called during this critical section,
|
|
|
6373 we simply return. #### We should abort instead.
|
|
|
6374
|
|
|
6375 #### If a frame-size change does occur we should probably
|
|
|
6376 actually be preempting redisplay. */
|
|
|
6377
|
|
404
|
6378 /* We can now update the gutters, safe in the knowledge that our
|
|
|
6379 efforts won't get undone. */
|
|
|
6380
|
|
|
6381 /* This can call lisp, but redisplay is protected by binding
|
|
|
6382 inhibit_quit. More importantly the code involving display lines
|
|
|
6383 *assumes* that GC will not happen and so does not GCPRO
|
|
|
6384 anything. Since we use this code the whole time with the gutters
|
|
|
6385 we cannot allow GC to happen when manipulating the gutters. */
|
|
|
6386 update_frame_gutters (f);
|
|
|
6387
|
|
0
|
6388 /* Erase the frame before outputting its contents. */
|
|
|
6389 if (f->clear)
|
|
384
|
6390 {
|
|
|
6391 DEVMETH (d, clear_frame, (f));
|
|
|
6392 }
|
|
|
6393
|
|
0
|
6394 /* Do the selected window first. */
|
|
|
6395 redisplay_window (FRAME_SELECTED_WINDOW (f), 0);
|
|
|
6396
|
|
|
6397 /* Then do the rest. */
|
|
|
6398 redisplay_windows (f->root_window, 1);
|
|
|
6399
|
|
|
6400 /* We now call the output_end routine for tty frames. We delay
|
|
|
6401 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
6402 encapsulation. */
|
|
|
6403 if (FRAME_TTY_P (f))
|
|
|
6404 DEVMETH (d, output_end, (d));
|
|
|
6405
|
|
|
6406 update_frame_title (f);
|
|
|
6407
|
|
398
|
6408 CLASS_RESET_CHANGED_FLAGS (f);
|
|
0
|
6409 f->window_face_cache_reset = 0;
|
|
217
|
6410 f->echo_area_garbaged = 0;
|
|
0
|
6411 f->clear = 0;
|
|
|
6412
|
|
|
6413 if (!f->size_change_pending)
|
|
|
6414 f->size_changed = 0;
|
|
|
6415
|
|
|
6416 /* ----------------- END CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
6417
|
|
|
6418 /* Allow frame size changes to occur again.
|
|
|
6419
|
|
|
6420 #### what happens if changes to other frames happen? */
|
|
|
6421 unhold_one_frame_size_changes (f);
|
|
|
6422
|
|
|
6423 map_windows (f, call_redisplay_end_triggers, 0);
|
|
|
6424 return 0;
|
|
|
6425 }
|
|
|
6426
|
|
398
|
6427 /* Ensure that all frames on the given device are correctly displayed.
|
|
|
6428 If AUTOMATIC is non-zero, and the device implementation indicates
|
|
|
6429 no automatic redisplay, as printers do, then the device is not
|
|
|
6430 redisplayed. AUTOMATIC is set to zero when called from lisp
|
|
|
6431 functions (redraw-device) and (redisplay-device), and to non-zero
|
|
|
6432 when called from "lazy" redisplay();
|
|
|
6433 */
|
|
0
|
6434
|
|
|
6435 static int
|
|
398
|
6436 redisplay_device (struct device *d, int automatic)
|
|
0
|
6437 {
|
|
|
6438 Lisp_Object frame, frmcons;
|
|
|
6439 int preempted = 0;
|
|
|
6440 int size_change_failed = 0;
|
|
|
6441 struct frame *f;
|
|
|
6442
|
|
398
|
6443 if (automatic
|
|
|
6444 && (MAYBE_INT_DEVMETH (d, device_implementation_flags, ())
|
|
|
6445 & XDEVIMPF_NO_AUTO_REDISPLAY))
|
|
|
6446 return 0;
|
|
|
6447
|
|
0
|
6448 if (DEVICE_STREAM_P (d)) /* nothing to do */
|
|
|
6449 return 0;
|
|
|
6450
|
|
|
6451 /* It is possible that redisplay has been called before the
|
|
|
6452 device is fully initialized. If so then continue with the
|
|
|
6453 next device. */
|
|
|
6454 if (NILP (DEVICE_SELECTED_FRAME (d)))
|
|
|
6455 return 0;
|
|
|
6456
|
|
|
6457 REDISPLAY_PREEMPTION_CHECK;
|
|
|
6458 if (preempted)
|
|
|
6459 return 1;
|
|
|
6460
|
|
|
6461 /* Always do the selected frame first. */
|
|
|
6462 frame = DEVICE_SELECTED_FRAME (d);
|
|
183
|
6463
|
|
0
|
6464 f = XFRAME (frame);
|
|
|
6465
|
|
|
6466 if (f->icon_changed || f->windows_changed)
|
|
|
6467 update_frame_icon (f);
|
|
|
6468
|
|
108
|
6469 if (FRAME_REPAINT_P (f))
|
|
0
|
6470 {
|
|
398
|
6471 if (CLASS_REDISPLAY_FLAGS_CHANGEDP(f))
|
|
0
|
6472 {
|
|
|
6473 preempted = redisplay_frame (f, 0);
|
|
|
6474 }
|
|
|
6475
|
|
|
6476 if (preempted)
|
|
|
6477 return 1;
|
|
|
6478
|
|
|
6479 /* If the frame redisplay did not get preempted, then this flag
|
|
|
6480 should have gotten set to 0. It might be possible for that
|
|
|
6481 not to happen if a size change event were to occur at an odd
|
|
|
6482 time. To make sure we don't miss anything we simply don't
|
|
|
6483 reset the top level flags until the condition ends up being
|
|
|
6484 in the right state. */
|
|
|
6485 if (f->size_changed)
|
|
|
6486 size_change_failed = 1;
|
|
|
6487 }
|
|
|
6488
|
|
|
6489 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
6490 {
|
|
|
6491 f = XFRAME (XCAR (frmcons));
|
|
|
6492
|
|
|
6493 if (f == XFRAME (DEVICE_SELECTED_FRAME (d)))
|
|
|
6494 continue;
|
|
|
6495
|
|
|
6496 if (f->icon_changed || f->windows_changed)
|
|
|
6497 update_frame_icon (f);
|
|
|
6498
|
|
108
|
6499 if (FRAME_REPAINT_P (f))
|
|
0
|
6500 {
|
|
398
|
6501 if (CLASS_REDISPLAY_FLAGS_CHANGEDP (f))
|
|
0
|
6502 {
|
|
|
6503 preempted = redisplay_frame (f, 0);
|
|
|
6504 }
|
|
|
6505
|
|
|
6506 if (preempted)
|
|
|
6507 return 1;
|
|
|
6508
|
|
|
6509 if (f->size_change_pending)
|
|
|
6510 size_change_failed = 1;
|
|
|
6511 }
|
|
|
6512 }
|
|
|
6513
|
|
|
6514 /* If we get here then we redisplayed all of our frames without
|
|
|
6515 getting preempted so mark ourselves as clean. */
|
|
398
|
6516 CLASS_RESET_CHANGED_FLAGS (d);
|
|
0
|
6517
|
|
|
6518 if (!size_change_failed)
|
|
|
6519 d->size_changed = 0;
|
|
|
6520
|
|
|
6521 return 0;
|
|
|
6522 }
|
|
|
6523
|
|
|
6524 static Lisp_Object
|
|
|
6525 restore_profiling_redisplay_flag (Lisp_Object val)
|
|
|
6526 {
|
|
|
6527 profiling_redisplay_flag = XINT (val);
|
|
|
6528 return Qnil;
|
|
|
6529 }
|
|
|
6530
|
|
|
6531 /* Ensure that all windows on all frames on all devices are displaying
|
|
|
6532 the current contents of their respective buffers. */
|
|
|
6533
|
|
|
6534 static void
|
|
|
6535 redisplay_without_hooks (void)
|
|
|
6536 {
|
|
|
6537 Lisp_Object devcons, concons;
|
|
|
6538 int size_change_failed = 0;
|
|
|
6539 int count = specpdl_depth ();
|
|
|
6540
|
|
|
6541 if (profiling_active)
|
|
|
6542 {
|
|
|
6543 record_unwind_protect (restore_profiling_redisplay_flag,
|
|
|
6544 make_int (profiling_redisplay_flag));
|
|
|
6545 profiling_redisplay_flag = 1;
|
|
|
6546 }
|
|
|
6547
|
|
|
6548 if (asynch_device_change_pending)
|
|
|
6549 handle_asynch_device_change ();
|
|
|
6550
|
|
398
|
6551 if (!GLOBAL_REDISPLAY_FLAGS_CHANGEDP &&
|
|
|
6552 !disable_preemption && preemption_count < max_preempts)
|
|
0
|
6553 goto done;
|
|
|
6554
|
|
|
6555 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
6556 {
|
|
|
6557 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
6558 int preempted;
|
|
|
6559
|
|
398
|
6560 if (CLASS_REDISPLAY_FLAGS_CHANGEDP (d))
|
|
|
6561 {
|
|
|
6562 preempted = redisplay_device (d, 1);
|
|
0
|
6563
|
|
|
6564 if (preempted)
|
|
|
6565 {
|
|
|
6566 preemption_count++;
|
|
|
6567 RESET_CHANGED_SET_FLAGS;
|
|
|
6568 goto done;
|
|
|
6569 }
|
|
|
6570
|
|
|
6571 /* See comment in redisplay_device. */
|
|
|
6572 if (d->size_changed)
|
|
|
6573 size_change_failed = 1;
|
|
|
6574 }
|
|
|
6575 }
|
|
|
6576 preemption_count = 0;
|
|
|
6577
|
|
|
6578 /* Mark redisplay as accurate */
|
|
398
|
6579 GLOBAL_RESET_CHANGED_FLAGS;
|
|
0
|
6580 RESET_CHANGED_SET_FLAGS;
|
|
|
6581
|
|
|
6582 if (faces_changed)
|
|
|
6583 {
|
|
|
6584 mark_all_faces_as_clean ();
|
|
|
6585 faces_changed = 0;
|
|
|
6586 }
|
|
|
6587
|
|
|
6588 if (!size_change_failed)
|
|
|
6589 size_changed = 0;
|
|
|
6590
|
|
|
6591 reset_buffer_changes ();
|
|
|
6592
|
|
|
6593 done:
|
|
|
6594 unbind_to (count, Qnil);
|
|
|
6595 }
|
|
|
6596
|
|
|
6597 void
|
|
|
6598 redisplay (void)
|
|
|
6599 {
|
|
|
6600 if (last_display_warning_tick != display_warning_tick &&
|
|
|
6601 !inhibit_warning_display)
|
|
|
6602 {
|
|
|
6603 /* If an error occurs during this function, oh well.
|
|
|
6604 If we report another warning, we could get stuck in an
|
|
|
6605 infinite loop reporting warnings. */
|
|
|
6606 call0_trapping_errors (0, Qdisplay_warning_buffer);
|
|
|
6607 last_display_warning_tick = display_warning_tick;
|
|
|
6608 }
|
|
|
6609 /* The run_hook_trapping_errors functions are smart enough not
|
|
|
6610 to do any evalling if the hook function is empty, so there
|
|
|
6611 should not be any significant time loss. All places in the
|
|
|
6612 C code that call redisplay() are prepared to handle GCing,
|
|
|
6613 so we should be OK. */
|
|
|
6614 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
6615 run_hook_trapping_errors ("Error in pre-redisplay-hook",
|
|
|
6616 Qpre_redisplay_hook);
|
|
183
|
6617 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
6618
|
|
|
6619 redisplay_without_hooks ();
|
|
|
6620
|
|
|
6621 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
6622 run_hook_trapping_errors ("Error in post-redisplay-hook",
|
|
|
6623 Qpost_redisplay_hook);
|
|
183
|
6624 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
6625 }
|
|
|
6626
|
|
211
|
6627
|
|
267
|
6628 static char window_line_number_buf[32];
|
|
211
|
6629
|
|
|
6630 /* Efficiently determine the window line number, and return a pointer
|
|
|
6631 to its printed representation. Do this regardless of whether
|
|
|
6632 line-number-mode is on. The first line in the buffer is counted as
|
|
|
6633 1. If narrowing is in effect, the lines are counted from the
|
|
|
6634 beginning of the visible portion of the buffer. */
|
|
0
|
6635 static char *
|
|
|
6636 window_line_number (struct window *w, int type)
|
|
|
6637 {
|
|
|
6638 struct device *d = XDEVICE (XFRAME (w->frame)->device);
|
|
|
6639 struct buffer *b = XBUFFER (w->buffer);
|
|
380
|
6640 /* Be careful in the order of these tests. The first clause will
|
|
282
|
6641 fail if DEVICE_SELECTED_FRAME == Qnil (since w->frame cannot be).
|
|
380
|
6642 This can occur when the frame title is computed really early */
|
|
211
|
6643 Bufpos pos =
|
|
282
|
6644 ((EQ(DEVICE_SELECTED_FRAME(d), w->frame) &&
|
|
|
6645 (w == XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame(d)))) &&
|
|
151
|
6646 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
282
|
6647 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d )
|
|
0
|
6648 ? BUF_PT (b)
|
|
|
6649 : marker_position (w->pointm[type]));
|
|
211
|
6650 EMACS_INT line;
|
|
|
6651
|
|
|
6652 line = buffer_line_number (b, pos, 1);
|
|
|
6653
|
|
276
|
6654 long_to_string (window_line_number_buf, line + 1);
|
|
0
|
6655
|
|
173
|
6656 return window_line_number_buf;
|
|
0
|
6657 }
|
|
|
6658
|
|
211
|
6659
|
|
0
|
6660 /* Given a character representing an object in a modeline
|
|
|
6661 specification, return a string (stored into the global array
|
|
|
6662 `mode_spec_bufbyte_string') with the information that object
|
|
|
6663 represents.
|
|
|
6664
|
|
|
6665 This function is largely unchanged from previous versions of the
|
|
282
|
6666 redisplay engine.
|
|
|
6667
|
|
|
6668 Warning! This code is also used for frame titles and can be called
|
|
|
6669 very early in the device/frame update process! JV
|
|
|
6670 */
|
|
0
|
6671
|
|
|
6672 static void
|
|
|
6673 decode_mode_spec (struct window *w, Emchar spec, int type)
|
|
|
6674 {
|
|
|
6675 Lisp_Object obj = Qnil;
|
|
398
|
6676 const char *str = NULL;
|
|
0
|
6677 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6678
|
|
|
6679 Dynarr_reset (mode_spec_bufbyte_string);
|
|
|
6680
|
|
|
6681 switch (spec)
|
|
|
6682 {
|
|
|
6683 /* print buffer name */
|
|
|
6684 case 'b':
|
|
|
6685 obj = b->name;
|
|
|
6686 break;
|
|
|
6687
|
|
|
6688 /* print visited file name */
|
|
|
6689 case 'f':
|
|
|
6690 obj = b->filename;
|
|
|
6691 break;
|
|
|
6692
|
|
|
6693 /* print the current column */
|
|
|
6694 case 'c':
|
|
|
6695 {
|
|
298
|
6696 Bufpos pt = (w == XWINDOW (Fselected_window (Qnil)))
|
|
|
6697 ? BUF_PT (b)
|
|
|
6698 : marker_position (w->pointm[type]);
|
|
|
6699 int col = column_at_point (b, pt, 1) + !!column_number_start_at_one;
|
|
280
|
6700 char buf[32];
|
|
|
6701
|
|
276
|
6702 long_to_string (buf, col);
|
|
0
|
6703
|
|
|
6704 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
398
|
6705 (const Bufbyte *) buf, strlen (buf));
|
|
0
|
6706
|
|
|
6707 goto decode_mode_spec_done;
|
|
|
6708 }
|
|
70
|
6709 /* print the file coding system */
|
|
|
6710 case 'C':
|
|
284
|
6711 #ifdef FILE_CODING
|
|
70
|
6712 {
|
|
110
|
6713 Lisp_Object codesys = b->buffer_file_coding_system;
|
|
70
|
6714 /* Be very careful here not to get an error. */
|
|
|
6715 if (NILP (codesys) || SYMBOLP (codesys) || CODING_SYSTEMP (codesys))
|
|
|
6716 {
|
|
|
6717 codesys = Ffind_coding_system (codesys);
|
|
|
6718 if (CODING_SYSTEMP (codesys))
|
|
284
|
6719 obj = XCODING_SYSTEM_MNEMONIC (codesys);
|
|
70
|
6720 }
|
|
|
6721 }
|
|
284
|
6722 #endif /* FILE_CODING */
|
|
70
|
6723 break;
|
|
16
|
6724
|
|
0
|
6725 /* print the current line number */
|
|
|
6726 case 'l':
|
|
|
6727 str = window_line_number (w, type);
|
|
|
6728 break;
|
|
|
6729
|
|
|
6730 /* print value of mode-name (obsolete) */
|
|
|
6731 case 'm':
|
|
|
6732 obj = b->mode_name;
|
|
|
6733 break;
|
|
|
6734
|
|
149
|
6735 /* print hyphen and frame number, if != 1 */
|
|
|
6736 case 'N':
|
|
|
6737 #ifdef HAVE_TTY
|
|
|
6738 {
|
|
|
6739 struct frame *f = XFRAME (w->frame);
|
|
282
|
6740 if (FRAME_TTY_P (f) && f->order_count > 1 && f->order_count <= 99999999)
|
|
149
|
6741 {
|
|
282
|
6742 /* Naughty, naughty */
|
|
272
|
6743 char * writable_str = alloca_array (char, 10);
|
|
|
6744 sprintf (writable_str, "-%d", f->order_count);
|
|
|
6745 str = writable_str;
|
|
149
|
6746 }
|
|
|
6747 }
|
|
183
|
6748 #endif /* HAVE_TTY */
|
|
149
|
6749 break;
|
|
|
6750
|
|
0
|
6751 /* print Narrow if appropriate */
|
|
|
6752 case 'n':
|
|
|
6753 if (BUF_BEGV (b) > BUF_BEG (b)
|
|
|
6754 || BUF_ZV (b) < BUF_Z (b))
|
|
|
6755 str = " Narrow";
|
|
|
6756 break;
|
|
|
6757
|
|
|
6758 /* print %, * or hyphen, if buffer is read-only, modified or neither */
|
|
|
6759 case '*':
|
|
|
6760 str = (!NILP (b->read_only)
|
|
|
6761 ? "%"
|
|
|
6762 : ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
6763 ? "*"
|
|
|
6764 : "-"));
|
|
|
6765 break;
|
|
|
6766
|
|
|
6767 /* print * or hyphen -- XEmacs change to allow a buffer to be
|
|
|
6768 read-only but still indicate whether it is modified. */
|
|
|
6769 case '+':
|
|
|
6770 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
6771 ? "*"
|
|
|
6772 : (!NILP (b->read_only)
|
|
|
6773 ? "%"
|
|
|
6774 : "-"));
|
|
|
6775 break;
|
|
|
6776
|
|
|
6777 /* #### defined in 19.29 decode_mode_spec, but not in
|
|
|
6778 modeline-format doc string. */
|
|
|
6779 /* This differs from %* in that it ignores read-only-ness. */
|
|
|
6780 case '&':
|
|
|
6781 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
6782 ? "*"
|
|
|
6783 : "-");
|
|
|
6784 break;
|
|
|
6785
|
|
|
6786 /* print process status */
|
|
|
6787 case 's':
|
|
|
6788 obj = Fget_buffer_process (w->buffer);
|
|
|
6789 if (NILP (obj))
|
|
|
6790 str = GETTEXT ("no process");
|
|
|
6791 else
|
|
|
6792 obj = Fsymbol_name (Fprocess_status (obj));
|
|
|
6793 break;
|
|
|
6794
|
|
227
|
6795 /* Print name of selected frame. */
|
|
0
|
6796 case 'S':
|
|
|
6797 obj = XFRAME (w->frame)->name;
|
|
|
6798 break;
|
|
|
6799
|
|
|
6800 /* indicate TEXT or BINARY */
|
|
|
6801 case 't':
|
|
265
|
6802 /* #### NT does not use this any more. Now what? */
|
|
0
|
6803 str = "T";
|
|
10
|
6804 break;
|
|
0
|
6805
|
|
|
6806 /* print percent of buffer above top of window, or Top, Bot or All */
|
|
|
6807 case 'p':
|
|
|
6808 {
|
|
|
6809 Bufpos pos = marker_position (w->start[type]);
|
|
|
6810
|
|
|
6811 /* This had better be while the desired lines are being done. */
|
|
|
6812 if (w->window_end_pos[type] <= BUF_Z (b) - BUF_ZV (b))
|
|
|
6813 {
|
|
|
6814 if (pos <= BUF_BEGV (b))
|
|
|
6815 str = "All";
|
|
|
6816 else
|
|
|
6817 str = "Bottom";
|
|
|
6818 }
|
|
|
6819 else if (pos <= BUF_BEGV (b))
|
|
|
6820 str = "Top";
|
|
|
6821 else
|
|
|
6822 {
|
|
|
6823 /* This hard limit is ok since the string it will hold has a
|
|
|
6824 fixed maximum length of 3. But just to be safe... */
|
|
|
6825 char buf[10];
|
|
398
|
6826 Charcount chars = pos - BUF_BEGV (b);
|
|
|
6827 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
6828
|
|
|
6829 /* Avoid overflow on big buffers */
|
|
|
6830 int percent = total > LONG_MAX/200 ?
|
|
|
6831 (chars + total/200) / (total / 100) :
|
|
|
6832 (chars * 100 + total/2) / total;
|
|
0
|
6833
|
|
|
6834 /* We can't normally display a 3-digit number, so get us a
|
|
|
6835 2-digit number that is close. */
|
|
398
|
6836 if (percent == 100)
|
|
|
6837 percent = 99;
|
|
|
6838
|
|
|
6839 sprintf (buf, "%d%%", percent);
|
|
0
|
6840 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) buf,
|
|
|
6841 strlen (buf));
|
|
|
6842
|
|
|
6843 goto decode_mode_spec_done;
|
|
|
6844 }
|
|
|
6845 break;
|
|
|
6846 }
|
|
|
6847
|
|
|
6848 /* print percent of buffer above bottom of window, perhaps plus
|
|
|
6849 Top, or print Bottom or All */
|
|
|
6850 case 'P':
|
|
|
6851 {
|
|
|
6852 Bufpos toppos = marker_position (w->start[type]);
|
|
|
6853 Bufpos botpos = BUF_Z (b) - w->window_end_pos[type];
|
|
|
6854
|
|
10
|
6855 /* botpos is only accurate as of the last redisplay, so we can
|
|
16
|
6856 only treat it as a hint. In particular, after erase-buffer,
|
|
|
6857 botpos may be negative. */
|
|
10
|
6858 if (botpos < toppos)
|
|
|
6859 botpos = toppos;
|
|
183
|
6860
|
|
0
|
6861 if (botpos >= BUF_ZV (b))
|
|
|
6862 {
|
|
|
6863 if (toppos <= BUF_BEGV (b))
|
|
|
6864 str = "All";
|
|
|
6865 else
|
|
|
6866 str = "Bottom";
|
|
|
6867 }
|
|
|
6868 else
|
|
|
6869 {
|
|
|
6870 /* This hard limit is ok since the string it will hold has a
|
|
|
6871 fixed maximum length of around 6. But just to be safe... */
|
|
|
6872 char buf[10];
|
|
398
|
6873 Charcount chars = botpos - BUF_BEGV (b);
|
|
|
6874 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
6875
|
|
|
6876 /* Avoid overflow on big buffers */
|
|
|
6877 int percent = total > LONG_MAX/200 ?
|
|
|
6878 (chars + total/200) / (total / 100) :
|
|
|
6879 (chars * 100 + total/2) / max (total, 1);
|
|
0
|
6880
|
|
|
6881 /* We can't normally display a 3-digit number, so get us a
|
|
|
6882 2-digit number that is close. */
|
|
398
|
6883 if (percent == 100)
|
|
|
6884 percent = 99;
|
|
0
|
6885
|
|
|
6886 if (toppos <= BUF_BEGV (b))
|
|
398
|
6887 sprintf (buf, "Top%d%%", percent);
|
|
0
|
6888 else
|
|
398
|
6889 sprintf (buf, "%d%%", percent);
|
|
0
|
6890
|
|
|
6891 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) buf,
|
|
|
6892 strlen (buf));
|
|
|
6893
|
|
|
6894 goto decode_mode_spec_done;
|
|
|
6895 }
|
|
|
6896 break;
|
|
|
6897 }
|
|
|
6898
|
|
|
6899 /* print % */
|
|
|
6900 case '%':
|
|
|
6901 str = "%";
|
|
|
6902 break;
|
|
|
6903
|
|
|
6904 /* print one [ for each recursive editing level. */
|
|
|
6905 case '[':
|
|
|
6906 {
|
|
|
6907 int i;
|
|
|
6908
|
|
|
6909 if (command_loop_level > 5)
|
|
|
6910 {
|
|
|
6911 str = "[[[... ";
|
|
|
6912 break;
|
|
|
6913 }
|
|
|
6914
|
|
|
6915 for (i = 0; i < command_loop_level; i++)
|
|
|
6916 Dynarr_add (mode_spec_bufbyte_string, '[');
|
|
|
6917
|
|
|
6918 goto decode_mode_spec_done;
|
|
|
6919 }
|
|
|
6920
|
|
|
6921 /* print one ] for each recursive editing level. */
|
|
|
6922 case ']':
|
|
|
6923 {
|
|
|
6924 int i;
|
|
|
6925
|
|
|
6926 if (command_loop_level > 5)
|
|
|
6927 {
|
|
|
6928 str = "...]]]";
|
|
|
6929 break;
|
|
|
6930 }
|
|
|
6931
|
|
|
6932 for (i = 0; i < command_loop_level; i++)
|
|
|
6933 Dynarr_add (mode_spec_bufbyte_string, ']');
|
|
|
6934
|
|
|
6935 goto decode_mode_spec_done;
|
|
|
6936 }
|
|
|
6937
|
|
|
6938 /* print infinitely many dashes -- handle at top level now */
|
|
|
6939 case '-':
|
|
|
6940 break;
|
|
|
6941
|
|
|
6942 }
|
|
|
6943
|
|
|
6944 if (STRINGP (obj))
|
|
16
|
6945 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
|
6946 XSTRING_DATA (obj),
|
|
|
6947 XSTRING_LENGTH (obj));
|
|
0
|
6948 else if (str)
|
|
|
6949 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) str, strlen (str));
|
|
|
6950
|
|
|
6951 decode_mode_spec_done:
|
|
|
6952 Dynarr_add (mode_spec_bufbyte_string, '\0');
|
|
|
6953 }
|
|
|
6954
|
|
16
|
6955 /* Given a display line, free all of its data structures. */
|
|
0
|
6956
|
|
|
6957 static void
|
|
|
6958 free_display_line (struct display_line *dl)
|
|
|
6959 {
|
|
|
6960 int block;
|
|
|
6961
|
|
|
6962 if (dl->display_blocks)
|
|
|
6963 {
|
|
|
6964 for (block = 0; block < Dynarr_largest (dl->display_blocks); block++)
|
|
|
6965 {
|
|
|
6966 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
|
|
|
6967
|
|
|
6968 Dynarr_free (db->runes);
|
|
|
6969 }
|
|
|
6970
|
|
|
6971 Dynarr_free (dl->display_blocks);
|
|
185
|
6972 dl->display_blocks = NULL;
|
|
0
|
6973 }
|
|
|
6974
|
|
|
6975 if (dl->left_glyphs)
|
|
|
6976 {
|
|
|
6977 Dynarr_free (dl->left_glyphs);
|
|
185
|
6978 dl->left_glyphs = NULL;
|
|
0
|
6979 }
|
|
|
6980
|
|
|
6981 if (dl->right_glyphs)
|
|
|
6982 {
|
|
|
6983 Dynarr_free (dl->right_glyphs);
|
|
185
|
6984 dl->right_glyphs = NULL;
|
|
0
|
6985 }
|
|
|
6986 }
|
|
|
6987
|
|
|
6988
|
|
|
6989 /* Given an array of display lines, free them and all data structures
|
|
|
6990 contained within them. */
|
|
|
6991
|
|
398
|
6992 void
|
|
0
|
6993 free_display_lines (display_line_dynarr *dla)
|
|
|
6994 {
|
|
|
6995 int line;
|
|
|
6996
|
|
|
6997 for (line = 0; line < Dynarr_largest (dla); line++)
|
|
|
6998 {
|
|
|
6999 free_display_line (Dynarr_atp (dla, line));
|
|
|
7000 }
|
|
|
7001
|
|
|
7002 Dynarr_free (dla);
|
|
|
7003 }
|
|
|
7004
|
|
|
7005 /* Call internal free routine for each set of display lines. */
|
|
|
7006
|
|
|
7007 void
|
|
|
7008 free_display_structs (struct window_mirror *mir)
|
|
|
7009 {
|
|
|
7010 if (mir->current_display_lines)
|
|
|
7011 {
|
|
|
7012 free_display_lines (mir->current_display_lines);
|
|
|
7013 mir->current_display_lines = 0;
|
|
|
7014 }
|
|
|
7015
|
|
|
7016 if (mir->desired_display_lines)
|
|
|
7017 {
|
|
|
7018 free_display_lines (mir->desired_display_lines);
|
|
|
7019 mir->desired_display_lines = 0;
|
|
|
7020 }
|
|
|
7021 }
|
|
|
7022
|
|
|
7023
|
|
|
7024 static void
|
|
398
|
7025 mark_glyph_block_dynarr (glyph_block_dynarr *gba)
|
|
185
|
7026 {
|
|
|
7027 if (gba)
|
|
|
7028 {
|
|
|
7029 glyph_block *gb = Dynarr_atp (gba, 0);
|
|
|
7030 glyph_block *gb_last = Dynarr_atp (gba, Dynarr_length (gba));
|
|
|
7031
|
|
|
7032 for (; gb < gb_last; gb++)
|
|
|
7033 {
|
|
380
|
7034 if (!NILP (gb->glyph))
|
|
398
|
7035 mark_object (gb->glyph);
|
|
380
|
7036 if (!NILP (gb->extent))
|
|
398
|
7037 mark_object (gb->extent);
|
|
185
|
7038 }
|
|
|
7039 }
|
|
|
7040 }
|
|
|
7041
|
|
400
|
7042 /* See the comment in image_instantiate_cache_result as to why marking
|
|
|
7043 the glyph will also mark the image_instance. */
|
|
|
7044 void
|
|
398
|
7045 mark_redisplay_structs (display_line_dynarr *dla)
|
|
0
|
7046 {
|
|
185
|
7047 display_line *dl = Dynarr_atp (dla, 0);
|
|
|
7048 display_line *dl_last = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
7049
|
|
|
7050 for (; dl < dl_last; dl++)
|
|
|
7051 {
|
|
|
7052 display_block_dynarr *dba = dl->display_blocks;
|
|
|
7053 display_block *db = Dynarr_atp (dba, 0);
|
|
|
7054 display_block *db_last = Dynarr_atp (dba, Dynarr_length (dba));
|
|
|
7055
|
|
|
7056 for (; db < db_last; db++)
|
|
|
7057 {
|
|
|
7058 rune_dynarr *ra = db->runes;
|
|
|
7059 rune *r = Dynarr_atp (ra, 0);
|
|
|
7060 rune *r_last = Dynarr_atp (ra, Dynarr_length (ra));
|
|
|
7061
|
|
|
7062 for (; r < r_last; r++)
|
|
0
|
7063 {
|
|
185
|
7064 if (r->type == RUNE_DGLYPH)
|
|
0
|
7065 {
|
|
185
|
7066 if (!NILP (r->object.dglyph.glyph))
|
|
398
|
7067 mark_object (r->object.dglyph.glyph);
|
|
185
|
7068 if (!NILP (r->object.dglyph.extent))
|
|
398
|
7069 mark_object (r->object.dglyph.extent);
|
|
0
|
7070 }
|
|
|
7071 }
|
|
|
7072 }
|
|
|
7073
|
|
398
|
7074 mark_glyph_block_dynarr (dl->left_glyphs);
|
|
|
7075 mark_glyph_block_dynarr (dl->right_glyphs);
|
|
0
|
7076 }
|
|
|
7077 }
|
|
|
7078
|
|
|
7079 static void
|
|
398
|
7080 mark_window_mirror (struct window_mirror *mir)
|
|
|
7081 {
|
|
|
7082 mark_redisplay_structs (mir->current_display_lines);
|
|
|
7083 mark_redisplay_structs (mir->desired_display_lines);
|
|
0
|
7084
|
|
|
7085 if (mir->next)
|
|
398
|
7086 mark_window_mirror (mir->next);
|
|
0
|
7087
|
|
|
7088 if (mir->hchild)
|
|
398
|
7089 mark_window_mirror (mir->hchild);
|
|
0
|
7090 else if (mir->vchild)
|
|
398
|
7091 mark_window_mirror (mir->vchild);
|
|
0
|
7092 }
|
|
|
7093
|
|
|
7094 void
|
|
398
|
7095 mark_redisplay (void)
|
|
0
|
7096 {
|
|
|
7097 Lisp_Object frmcons, devcons, concons;
|
|
|
7098
|
|
|
7099 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
7100 {
|
|
|
7101 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
7102 update_frame_window_mirror (f);
|
|
398
|
7103 mark_window_mirror (f->root_mirror);
|
|
400
|
7104 mark_gutters (f);
|
|
0
|
7105 }
|
|
|
7106 }
|
|
|
7107
|
|
|
7108 /*****************************************************************************
|
|
|
7109 Line Start Cache Description and Rationale
|
|
|
7110
|
|
|
7111 The traditional scrolling code in Emacs breaks in a variable height world.
|
|
|
7112 It depends on the key assumption that the number of lines that can be
|
|
|
7113 displayed at any given time is fixed. This led to a complete separation
|
|
|
7114 of the scrolling code from the redisplay code. In order to fully support
|
|
|
7115 variable height lines, the scrolling code must actually be tightly
|
|
|
7116 integrated with redisplay. Only redisplay can determine how many lines
|
|
|
7117 will be displayed on a screen for any given starting point.
|
|
|
7118
|
|
|
7119 What is ideally wanted is a complete list of the starting buffer position
|
|
|
7120 for every possible display line of a buffer along with the height of that
|
|
|
7121 display line. Maintaining such a full list would be very expensive. We
|
|
|
7122 settle for having it include information for all areas which we happen to
|
|
|
7123 generate anyhow (i.e. the region currently being displayed) and for those
|
|
|
7124 areas we need to work with.
|
|
|
7125
|
|
|
7126 In order to ensure that the cache accurately represents what redisplay
|
|
|
7127 would actually show, it is necessary to invalidate it in many situations.
|
|
|
7128 If the buffer changes, the starting positions may no longer be correct.
|
|
|
7129 If a face or an extent has changed then the line heights may have altered.
|
|
|
7130 These events happen frequently enough that the cache can end up being
|
|
|
7131 constantly disabled. With this potentially constant invalidation when is
|
|
|
7132 the cache ever useful?
|
|
|
7133
|
|
|
7134 Even if the cache is invalidated before every single usage, it is
|
|
|
7135 necessary. Scrolling often requires knowledge about display lines which
|
|
|
7136 are actually above or below the visible region. The cache provides a
|
|
|
7137 convenient light-weight method of storing this information for multiple
|
|
|
7138 display regions. This knowledge is necessary for the scrolling code to
|
|
|
7139 always obey the First Golden Rule of Redisplay.
|
|
|
7140
|
|
|
7141 If the cache already contains all of the information that the scrolling
|
|
|
7142 routines happen to need so that it doesn't have to go generate it, then we
|
|
|
7143 are able to obey the Third Golden Rule of Redisplay. The first thing we
|
|
|
7144 do to help out the cache is to always add the displayed region. This
|
|
|
7145 region had to be generated anyway, so the cache ends up getting the
|
|
|
7146 information basically for free. In those cases where a user is simply
|
|
|
7147 scrolling around viewing a buffer there is a high probability that this is
|
|
|
7148 sufficient to always provide the needed information. The second thing we
|
|
|
7149 can do is be smart about invalidating the cache.
|
|
|
7150
|
|
|
7151 TODO -- Be smart about invalidating the cache. Potential places:
|
|
|
7152
|
|
|
7153 + Insertions at end-of-line which don't cause line-wraps do not alter the
|
|
|
7154 starting positions of any display lines. These types of buffer
|
|
|
7155 modifications should not invalidate the cache. This is actually a large
|
|
|
7156 optimization for redisplay speed as well.
|
|
|
7157
|
|
|
7158 + Buffer modifications frequently only affect the display of lines at and
|
|
|
7159 below where they occur. In these situations we should only invalidate
|
|
|
7160 the part of the cache starting at where the modification occurs.
|
|
|
7161
|
|
|
7162 In case you're wondering, the Second Golden Rule of Redisplay is not
|
|
|
7163 applicable.
|
|
|
7164 ****************************************************************************/
|
|
|
7165
|
|
|
7166 /* This will get used quite a bit so we don't want to be constantly
|
|
|
7167 allocating and freeing it. */
|
|
398
|
7168 static line_start_cache_dynarr *internal_cache;
|
|
0
|
7169
|
|
|
7170 /* Makes internal_cache represent the TYPE display structs and only
|
|
|
7171 the TYPE display structs. */
|
|
|
7172
|
|
|
7173 static void
|
|
|
7174 update_internal_cache_list (struct window *w, int type)
|
|
|
7175 {
|
|
|
7176 int line;
|
|
|
7177 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
7178
|
|
|
7179 Dynarr_reset (internal_cache);
|
|
|
7180 for (line = 0; line < Dynarr_length (dla); line++)
|
|
|
7181 {
|
|
|
7182 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
7183
|
|
|
7184 if (dl->modeline)
|
|
|
7185 continue;
|
|
|
7186 else
|
|
|
7187 {
|
|
|
7188 struct line_start_cache lsc;
|
|
371
|
7189
|
|
0
|
7190 lsc.start = dl->bufpos;
|
|
|
7191 lsc.end = dl->end_bufpos;
|
|
|
7192 lsc.height = dl->ascent + dl->descent;
|
|
|
7193
|
|
|
7194 Dynarr_add (internal_cache, lsc);
|
|
|
7195 }
|
|
|
7196 }
|
|
|
7197 }
|
|
|
7198
|
|
|
7199 /* Reset the line cache if necessary. This should be run at the
|
|
|
7200 beginning of any function which access the cache. */
|
|
|
7201
|
|
|
7202 static void
|
|
|
7203 validate_line_start_cache (struct window *w)
|
|
|
7204 {
|
|
|
7205 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7206 struct frame *f = XFRAME (w->frame);
|
|
|
7207
|
|
|
7208 if (!w->line_cache_validation_override)
|
|
|
7209 {
|
|
|
7210 /* f->extents_changed used to be in here because extent face and
|
|
|
7211 size changes can cause text shifting. However, the extent
|
|
|
7212 covering the region is constantly having its face set and
|
|
|
7213 priority altered by the mouse code. This means that the line
|
|
380
|
7214 start cache is constantly being invalidated. This is bad
|
|
0
|
7215 since the mouse code also triggers heavy usage of the cache.
|
|
|
7216 Since it is an unlikely that f->extents being changed
|
|
|
7217 indicates that the cache really needs to be updated and if it
|
|
|
7218 does redisplay will catch it pretty quickly we no longer
|
|
|
7219 invalidate the cache if it is set. This greatly speeds up
|
|
|
7220 dragging out regions with the mouse. */
|
|
|
7221 if (XINT (w->line_cache_last_updated) < BUF_MODIFF (b)
|
|
|
7222 || f->faces_changed
|
|
|
7223 || f->clip_changed)
|
|
|
7224 {
|
|
|
7225 Dynarr_reset (w->line_start_cache);
|
|
|
7226 }
|
|
|
7227 }
|
|
|
7228 }
|
|
|
7229
|
|
|
7230 /* Return the very first buffer position contained in the given
|
|
|
7231 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
7232 cache is valid. */
|
|
|
7233
|
|
|
7234 static Bufpos
|
|
|
7235 line_start_cache_start (struct window *w)
|
|
|
7236 {
|
|
|
7237 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7238
|
|
|
7239 if (!Dynarr_length (cache))
|
|
|
7240 return -1;
|
|
|
7241 else
|
|
173
|
7242 return Dynarr_atp (cache, 0)->start;
|
|
0
|
7243 }
|
|
|
7244
|
|
|
7245 /* Return the very last buffer position contained in the given
|
|
|
7246 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
7247 cache is valid. */
|
|
|
7248
|
|
|
7249 static Bufpos
|
|
|
7250 line_start_cache_end (struct window *w)
|
|
|
7251 {
|
|
|
7252 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7253
|
|
|
7254 if (!Dynarr_length (cache))
|
|
|
7255 return -1;
|
|
|
7256 else
|
|
173
|
7257 return Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
0
|
7258 }
|
|
|
7259
|
|
|
7260 /* Return the index of the line POINT is contained within in window
|
|
|
7261 W's line start cache. It will enlarge the cache or move the cache
|
|
|
7262 window in order to have POINT be present in the cache. MIN_PAST is
|
|
|
7263 a guarantee of the number of entries in the cache present on either
|
|
|
7264 side of POINT (unless a buffer boundary is hit). If MIN_PAST is -1
|
|
|
7265 then it will be treated as 0, but the cache window will not be
|
|
|
7266 allowed to shift. Returns -1 if POINT cannot be found in the cache
|
|
|
7267 for any reason. */
|
|
|
7268
|
|
|
7269 int
|
|
|
7270 point_in_line_start_cache (struct window *w, Bufpos point, int min_past)
|
|
|
7271 {
|
|
|
7272 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7273 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7274 unsigned int top, bottom, pos;
|
|
|
7275
|
|
|
7276 validate_line_start_cache (w);
|
|
|
7277 w->line_cache_validation_override++;
|
|
|
7278
|
|
|
7279 /* Let functions pass in negative values, but we still treat -1
|
|
|
7280 specially. */
|
|
|
7281 /* #### bogosity alert */
|
|
|
7282 if (min_past < 0 && min_past != -1)
|
|
|
7283 min_past = -min_past;
|
|
|
7284
|
|
|
7285 if (!Dynarr_length (cache) || line_start_cache_start (w) > point
|
|
|
7286 || line_start_cache_end (w) < point)
|
|
|
7287 {
|
|
|
7288 int loop;
|
|
|
7289 int win_char_height = window_char_height (w, 1);
|
|
|
7290
|
|
|
7291 /* Occasionally we get here with a 0 height
|
|
|
7292 window. find_next_newline_no_quit will abort if we pass it a
|
|
|
7293 count of 0 so handle that case. */
|
|
|
7294 if (!win_char_height)
|
|
|
7295 win_char_height = 1;
|
|
|
7296
|
|
|
7297 if (!Dynarr_length (cache))
|
|
|
7298 {
|
|
|
7299 Bufpos from = find_next_newline_no_quit (b, point, -1);
|
|
|
7300 Bufpos to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7301
|
|
|
7302 update_line_start_cache (w, from, to, point, 0);
|
|
|
7303
|
|
|
7304 if (!Dynarr_length (cache))
|
|
|
7305 {
|
|
|
7306 w->line_cache_validation_override--;
|
|
|
7307 return -1;
|
|
|
7308 }
|
|
|
7309 }
|
|
|
7310
|
|
|
7311 assert (Dynarr_length (cache));
|
|
|
7312
|
|
|
7313 loop = 0;
|
|
|
7314 while (line_start_cache_start (w) > point
|
|
|
7315 && (loop < cache_adjustment || min_past == -1))
|
|
|
7316 {
|
|
|
7317 Bufpos from, to;
|
|
|
7318
|
|
|
7319 from = line_start_cache_start (w);
|
|
|
7320 if (from <= BUF_BEGV (b))
|
|
|
7321 break;
|
|
|
7322
|
|
|
7323 from = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7324 to = line_start_cache_end (w);
|
|
|
7325
|
|
|
7326 update_line_start_cache (w, from, to, point, 0);
|
|
|
7327 loop++;
|
|
|
7328 }
|
|
|
7329
|
|
|
7330 if (line_start_cache_start (w) > point)
|
|
|
7331 {
|
|
|
7332 Bufpos from, to;
|
|
|
7333
|
|
|
7334 from = find_next_newline_no_quit (b, point, -1);
|
|
|
7335 if (from >= BUF_ZV (b))
|
|
|
7336 {
|
|
|
7337 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7338 from = to;
|
|
|
7339 to = BUF_ZV (b);
|
|
|
7340 }
|
|
|
7341 else
|
|
|
7342 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7343
|
|
|
7344 update_line_start_cache (w, from, to, point, 0);
|
|
|
7345 }
|
|
|
7346
|
|
|
7347 loop = 0;
|
|
|
7348 while (line_start_cache_end (w) < point
|
|
|
7349 && (loop < cache_adjustment || min_past == -1))
|
|
|
7350 {
|
|
|
7351 Bufpos from, to;
|
|
|
7352
|
|
|
7353 to = line_start_cache_end (w);
|
|
|
7354 if (to >= BUF_ZV (b))
|
|
|
7355 break;
|
|
|
7356
|
|
|
7357 from = line_start_cache_end (w);
|
|
|
7358 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7359
|
|
|
7360 update_line_start_cache (w, from, to, point, 0);
|
|
|
7361 loop++;
|
|
|
7362 }
|
|
|
7363
|
|
|
7364 if (line_start_cache_end (w) < point)
|
|
|
7365 {
|
|
|
7366 Bufpos from, to;
|
|
|
7367
|
|
|
7368 from = find_next_newline_no_quit (b, point, -1);
|
|
|
7369 if (from >= BUF_ZV (b))
|
|
|
7370 {
|
|
|
7371 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7372 from = to;
|
|
|
7373 to = BUF_ZV (b);
|
|
|
7374 }
|
|
|
7375 else
|
|
|
7376 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7377
|
|
|
7378 update_line_start_cache (w, from, to, point, 0);
|
|
|
7379 }
|
|
|
7380 }
|
|
|
7381
|
|
|
7382 assert (Dynarr_length (cache));
|
|
|
7383
|
|
|
7384 if (min_past == -1)
|
|
|
7385 min_past = 0;
|
|
|
7386
|
|
|
7387 /* This could happen if the buffer is narrowed. */
|
|
|
7388 if (line_start_cache_start (w) > point
|
|
|
7389 || line_start_cache_end (w) < point)
|
|
|
7390 {
|
|
|
7391 w->line_cache_validation_override--;
|
|
|
7392 return -1;
|
|
|
7393 }
|
|
|
7394
|
|
|
7395 find_point_loop:
|
|
|
7396
|
|
|
7397 top = Dynarr_length (cache) - 1;
|
|
|
7398 bottom = 0;
|
|
|
7399
|
|
|
7400 while (1)
|
|
|
7401 {
|
|
|
7402 unsigned int new_pos;
|
|
|
7403 Bufpos start, end;
|
|
|
7404
|
|
|
7405 pos = (bottom + top + 1) >> 1;
|
|
|
7406 start = Dynarr_atp (cache, pos)->start;
|
|
|
7407 end = Dynarr_atp (cache, pos)->end;
|
|
|
7408
|
|
|
7409 if (point >= start && point <= end)
|
|
|
7410 {
|
|
|
7411 if (pos < min_past && line_start_cache_start (w) > BUF_BEGV (b))
|
|
|
7412 {
|
|
|
7413 Bufpos from =
|
|
|
7414 find_next_newline_no_quit (b, line_start_cache_start (w),
|
|
|
7415 -min_past - 1);
|
|
|
7416 Bufpos to = line_start_cache_end (w);
|
|
|
7417
|
|
|
7418 update_line_start_cache (w, from, to, point, 0);
|
|
|
7419 goto find_point_loop;
|
|
|
7420 }
|
|
|
7421 else if ((Dynarr_length (cache) - pos - 1) < min_past
|
|
|
7422 && line_start_cache_end (w) < BUF_ZV (b))
|
|
|
7423 {
|
|
|
7424 Bufpos from = line_start_cache_end (w);
|
|
|
7425 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
7426 (min_past
|
|
|
7427 ? min_past
|
|
|
7428 : 1));
|
|
|
7429
|
|
|
7430 update_line_start_cache (w, from, to, point, 0);
|
|
|
7431 goto find_point_loop;
|
|
|
7432 }
|
|
|
7433 else
|
|
|
7434 {
|
|
|
7435 w->line_cache_validation_override--;
|
|
|
7436 return pos;
|
|
|
7437 }
|
|
|
7438 }
|
|
|
7439 else if (point > end)
|
|
|
7440 bottom = pos + 1;
|
|
|
7441 else if (point < start)
|
|
|
7442 top = pos - 1;
|
|
|
7443 else
|
|
|
7444 abort ();
|
|
|
7445
|
|
|
7446 new_pos = (bottom + top + 1) >> 1;
|
|
|
7447 if (pos == new_pos)
|
|
|
7448 {
|
|
|
7449 w->line_cache_validation_override--;
|
|
|
7450 return -1;
|
|
|
7451 }
|
|
|
7452 }
|
|
|
7453 }
|
|
|
7454
|
|
|
7455 /* Return a boolean indicating if POINT would be visible in window W
|
|
|
7456 if display of the window was to begin at STARTP. */
|
|
|
7457
|
|
|
7458 int
|
|
|
7459 point_would_be_visible (struct window *w, Bufpos startp, Bufpos point)
|
|
|
7460 {
|
|
|
7461 struct buffer *b = XBUFFER (w->buffer);
|
|
398
|
7462 int pixpos = -WINDOW_TEXT_TOP_CLIP(w);
|
|
0
|
7463 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
7464 int start_elt;
|
|
|
7465
|
|
|
7466 /* If point is before the intended start it obviously can't be visible. */
|
|
|
7467 if (point < startp)
|
|
|
7468 return 0;
|
|
|
7469
|
|
|
7470 /* If point or start are not in the accessible buffer range, then
|
|
|
7471 fail. */
|
|
|
7472 if (startp < BUF_BEGV (b) || startp > BUF_ZV (b)
|
|
|
7473 || point < BUF_BEGV (b) || point > BUF_ZV (b))
|
|
267
|
7474 return 0;
|
|
0
|
7475
|
|
|
7476 validate_line_start_cache (w);
|
|
|
7477 w->line_cache_validation_override++;
|
|
|
7478
|
|
|
7479 start_elt = point_in_line_start_cache (w, startp, 0);
|
|
|
7480 if (start_elt == -1)
|
|
|
7481 {
|
|
|
7482 w->line_cache_validation_override--;
|
|
|
7483 return 0;
|
|
|
7484 }
|
|
|
7485
|
|
|
7486 assert (line_start_cache_start (w) <= startp
|
|
|
7487 && line_start_cache_end (w) >= startp);
|
|
|
7488
|
|
|
7489 while (1)
|
|
|
7490 {
|
|
|
7491 int height;
|
|
|
7492
|
|
|
7493 /* Expand the cache if necessary. */
|
|
|
7494 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
7495 {
|
|
|
7496 Bufpos old_startp =
|
|
|
7497 Dynarr_atp (w->line_start_cache, start_elt - 1)->start;
|
|
|
7498
|
|
|
7499 start_elt = point_in_line_start_cache (w, old_startp,
|
|
|
7500 window_char_height (w, 0));
|
|
|
7501
|
|
|
7502 /* We've already actually processed old_startp, so increment
|
|
|
7503 immediately. */
|
|
|
7504 start_elt++;
|
|
|
7505
|
|
|
7506 /* If this happens we didn't add any extra elements. Bummer. */
|
|
|
7507 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
7508 {
|
|
|
7509 w->line_cache_validation_override--;
|
|
|
7510 return 0;
|
|
|
7511 }
|
|
|
7512 }
|
|
|
7513
|
|
|
7514 height = Dynarr_atp (w->line_start_cache, start_elt)->height;
|
|
|
7515
|
|
|
7516 if (pixpos + height > bottom)
|
|
|
7517 {
|
|
|
7518 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
7519 {
|
|
|
7520 w->line_cache_validation_override--;
|
|
|
7521 return 0;
|
|
|
7522 }
|
|
|
7523 }
|
|
|
7524
|
|
|
7525 pixpos += height;
|
|
|
7526 if (point <= Dynarr_atp (w->line_start_cache, start_elt)->end)
|
|
|
7527 {
|
|
|
7528 w->line_cache_validation_override--;
|
|
|
7529 return 1;
|
|
|
7530 }
|
|
|
7531
|
|
|
7532 start_elt++;
|
|
|
7533 }
|
|
|
7534 }
|
|
|
7535
|
|
|
7536 /* For the given window W, if display starts at STARTP, what will be
|
|
|
7537 the buffer position at the beginning or end of the last line
|
|
|
7538 displayed. The end of the last line is also know as the window end
|
|
|
7539 position.
|
|
|
7540
|
|
404
|
7541 WARNING: It is possible that rediplay failed to layout any lines for the
|
|
|
7542 windows. Under normal circumstances this is rare. However it seems that it
|
|
|
7543 does occur in the following situation: A mouse event has come in and we
|
|
|
7544 need to compute its location in a window. That code (in
|
|
|
7545 pixel_to_glyph_translation) already can handle 0 as an error return value.
|
|
|
7546
|
|
0
|
7547 #### With a little work this could probably be reworked as just a
|
|
|
7548 call to start_with_line_at_pixpos. */
|
|
|
7549
|
|
|
7550 static Bufpos
|
|
404
|
7551 start_end_of_last_line (struct window *w, Bufpos startp, int end,
|
|
|
7552 int may_error)
|
|
0
|
7553 {
|
|
|
7554 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7555 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7556 int pixpos = 0;
|
|
|
7557 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
7558 Bufpos cur_start;
|
|
|
7559 int start_elt;
|
|
|
7560
|
|
|
7561 validate_line_start_cache (w);
|
|
|
7562 w->line_cache_validation_override++;
|
|
|
7563
|
|
|
7564 if (startp < BUF_BEGV (b))
|
|
|
7565 startp = BUF_BEGV (b);
|
|
|
7566 else if (startp > BUF_ZV (b))
|
|
|
7567 startp = BUF_ZV (b);
|
|
|
7568 cur_start = startp;
|
|
|
7569
|
|
|
7570 start_elt = point_in_line_start_cache (w, cur_start, 0);
|
|
|
7571 if (start_elt == -1)
|
|
404
|
7572 return may_error ? 0 : startp;
|
|
371
|
7573
|
|
0
|
7574 while (1)
|
|
|
7575 {
|
|
|
7576 int height = Dynarr_atp (cache, start_elt)->height;
|
|
|
7577
|
|
|
7578 cur_start = Dynarr_atp (cache, start_elt)->start;
|
|
|
7579
|
|
|
7580 if (pixpos + height > bottom)
|
|
|
7581 {
|
|
|
7582 /* Adjust for any possible clip. */
|
|
|
7583 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
7584 start_elt--;
|
|
|
7585
|
|
|
7586 if (start_elt < 0)
|
|
|
7587 {
|
|
|
7588 w->line_cache_validation_override--;
|
|
|
7589 if (end)
|
|
173
|
7590 return BUF_ZV (b);
|
|
0
|
7591 else
|
|
173
|
7592 return BUF_BEGV (b);
|
|
0
|
7593 }
|
|
|
7594 else
|
|
|
7595 {
|
|
|
7596 w->line_cache_validation_override--;
|
|
|
7597 if (end)
|
|
|
7598 return Dynarr_atp (cache, start_elt)->end;
|
|
|
7599 else
|
|
|
7600 return Dynarr_atp (cache, start_elt)->start;
|
|
|
7601 }
|
|
|
7602 }
|
|
|
7603
|
|
|
7604 pixpos += height;
|
|
|
7605 start_elt++;
|
|
|
7606 if (start_elt == Dynarr_length (cache))
|
|
|
7607 {
|
|
|
7608 Bufpos from = line_start_cache_end (w);
|
|
|
7609 int win_char_height = window_char_height (w, 0);
|
|
|
7610 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
7611 (win_char_height
|
|
|
7612 ? win_char_height
|
|
|
7613 : 1));
|
|
|
7614
|
|
|
7615 /* We've hit the end of the bottom so that's what it is. */
|
|
|
7616 if (from >= BUF_ZV (b))
|
|
|
7617 {
|
|
|
7618 w->line_cache_validation_override--;
|
|
173
|
7619 return BUF_ZV (b);
|
|
0
|
7620 }
|
|
|
7621
|
|
|
7622 update_line_start_cache (w, from, to, BUF_PT (b), 0);
|
|
|
7623
|
|
|
7624 /* Updating the cache invalidates any current indexes. */
|
|
|
7625 start_elt = point_in_line_start_cache (w, cur_start, -1) + 1;
|
|
|
7626 }
|
|
|
7627 }
|
|
|
7628 }
|
|
|
7629
|
|
|
7630 /* For the given window W, if display starts at STARTP, what will be
|
|
|
7631 the buffer position at the beginning of the last line displayed. */
|
|
|
7632
|
|
|
7633 Bufpos
|
|
|
7634 start_of_last_line (struct window *w, Bufpos startp)
|
|
|
7635 {
|
|
404
|
7636 return start_end_of_last_line (w, startp, 0 , 0);
|
|
0
|
7637 }
|
|
|
7638
|
|
|
7639 /* For the given window W, if display starts at STARTP, what will be
|
|
|
7640 the buffer position at the end of the last line displayed. This is
|
|
|
7641 also know as the window end position. */
|
|
|
7642
|
|
|
7643 Bufpos
|
|
|
7644 end_of_last_line (struct window *w, Bufpos startp)
|
|
|
7645 {
|
|
404
|
7646 return start_end_of_last_line (w, startp, 1, 0);
|
|
0
|
7647 }
|
|
|
7648
|
|
404
|
7649 static Bufpos
|
|
|
7650 end_of_last_line_may_error (struct window *w, Bufpos startp)
|
|
|
7651 {
|
|
|
7652 return start_end_of_last_line (w, startp, 1, 1);
|
|
|
7653 }
|
|
|
7654
|
|
|
7655
|
|
0
|
7656 /* For window W, what does the starting position have to be so that
|
|
|
7657 the line containing POINT will cover pixel position PIXPOS. */
|
|
|
7658
|
|
|
7659 Bufpos
|
|
|
7660 start_with_line_at_pixpos (struct window *w, Bufpos point, int pixpos)
|
|
|
7661 {
|
|
|
7662 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7663 int cur_elt;
|
|
116
|
7664 Bufpos cur_pos, prev_pos = point;
|
|
|
7665 int point_line_height;
|
|
0
|
7666 int pixheight = pixpos - WINDOW_TEXT_TOP (w);
|
|
|
7667
|
|
|
7668 validate_line_start_cache (w);
|
|
|
7669 w->line_cache_validation_override++;
|
|
|
7670
|
|
|
7671 cur_elt = point_in_line_start_cache (w, point, 0);
|
|
|
7672 /* #### See comment in update_line_start_cache about big minibuffers. */
|
|
|
7673 if (cur_elt < 0)
|
|
267
|
7674 {
|
|
|
7675 w->line_cache_validation_override--;
|
|
|
7676 return point;
|
|
|
7677 }
|
|
116
|
7678
|
|
|
7679 point_line_height = Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
7680
|
|
0
|
7681 while (1)
|
|
|
7682 {
|
|
|
7683 cur_pos = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
7684
|
|
|
7685 pixheight -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
7686
|
|
|
7687 /* Do not take into account the value of vertical_clip here.
|
|
|
7688 That is the responsibility of the calling functions. */
|
|
|
7689 if (pixheight < 0)
|
|
|
7690 {
|
|
|
7691 w->line_cache_validation_override--;
|
|
116
|
7692 if (-pixheight > point_line_height)
|
|
|
7693 /* We can't make the target line cover pixpos, so put it
|
|
|
7694 above pixpos. That way it will at least be visible. */
|
|
183
|
7695 return prev_pos;
|
|
116
|
7696 else
|
|
|
7697 return cur_pos;
|
|
0
|
7698 }
|
|
|
7699
|
|
|
7700 cur_elt--;
|
|
398
|
7701 while (cur_elt < 0)
|
|
0
|
7702 {
|
|
|
7703 Bufpos from, to;
|
|
|
7704 int win_char_height;
|
|
|
7705
|
|
|
7706 if (cur_pos <= BUF_BEGV (b))
|
|
|
7707 {
|
|
|
7708 w->line_cache_validation_override--;
|
|
173
|
7709 return BUF_BEGV (b);
|
|
0
|
7710 }
|
|
|
7711
|
|
|
7712 win_char_height = window_char_height (w, 0);
|
|
|
7713 if (!win_char_height)
|
|
|
7714 win_char_height = 1;
|
|
|
7715
|
|
|
7716 from = find_next_newline_no_quit (b, cur_pos, -win_char_height);
|
|
|
7717 to = line_start_cache_end (w);
|
|
|
7718 update_line_start_cache (w, from, to, point, 0);
|
|
|
7719
|
|
|
7720 cur_elt = point_in_line_start_cache (w, cur_pos, 2) - 1;
|
|
398
|
7721 assert (cur_elt >= -1);
|
|
|
7722 /* This used to be cur_elt>=0 under the assumption that if
|
|
|
7723 point is in the top line and not at BUF_BEGV, then
|
|
|
7724 setting the window_start to a newline before the start of
|
|
|
7725 the first line will always cause scrolling.
|
|
|
7726
|
|
|
7727 However in my (jv) opinion this is wrong. That new line
|
|
|
7728 can be hidden in various ways: invisible extents, an
|
|
|
7729 explicit window-start not at a newline character etc.
|
|
|
7730 The existence of those are indeed known to create crashes
|
|
|
7731 on that assert. So we have no option but to continue the
|
|
|
7732 search if we found point at the top of the line_start_cache
|
|
|
7733 again. */
|
|
|
7734 cur_pos = Dynarr_atp (w->line_start_cache,0)->start;
|
|
0
|
7735 }
|
|
116
|
7736 prev_pos = cur_pos;
|
|
0
|
7737 }
|
|
|
7738 }
|
|
|
7739
|
|
|
7740 /* For window W, what does the starting position have to be so that
|
|
|
7741 the line containing point is on display line LINE. If LINE is
|
|
|
7742 positive it is considered to be the number of lines from the top of
|
|
|
7743 the window (0 is the top line). If it is negative the number is
|
|
|
7744 considered to be the number of lines from the bottom (-1 is the
|
|
|
7745 bottom line). */
|
|
|
7746
|
|
|
7747 Bufpos
|
|
|
7748 start_with_point_on_display_line (struct window *w, Bufpos point, int line)
|
|
|
7749 {
|
|
|
7750 validate_line_start_cache (w);
|
|
|
7751 w->line_cache_validation_override++;
|
|
|
7752
|
|
|
7753 if (line >= 0)
|
|
|
7754 {
|
|
|
7755 int cur_elt = point_in_line_start_cache (w, point, line);
|
|
|
7756
|
|
|
7757 if (cur_elt - line < 0)
|
|
|
7758 cur_elt = 0; /* Hit the top */
|
|
|
7759 else
|
|
|
7760 cur_elt -= line;
|
|
|
7761
|
|
|
7762 w->line_cache_validation_override--;
|
|
173
|
7763 return Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
0
|
7764 }
|
|
|
7765 else
|
|
|
7766 {
|
|
|
7767 /* The calculated value of pixpos is correct for the bottom line
|
|
|
7768 or what we want when line is -1. Therefore we subtract one
|
|
|
7769 because we have already handled one line. */
|
|
|
7770 int new_line = -line - 1;
|
|
|
7771 int cur_elt = point_in_line_start_cache (w, point, new_line);
|
|
|
7772 int pixpos = WINDOW_TEXT_BOTTOM (w);
|
|
|
7773 Bufpos retval, search_point;
|
|
|
7774
|
|
|
7775 /* If scroll_on_clipped_lines is false, the last "visible" line of
|
|
|
7776 the window covers the pixel at WINDOW_TEXT_BOTTOM (w) - 1.
|
|
183
|
7777 If s_o_c_l is true, then we don't want to count a clipped
|
|
|
7778 line, so back up from the bottom by the height of the line
|
|
0
|
7779 containing point. */
|
|
|
7780 if (scroll_on_clipped_lines)
|
|
|
7781 pixpos -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
7782 else
|
|
|
7783 pixpos -= 1;
|
|
|
7784
|
|
|
7785 if (cur_elt + new_line >= Dynarr_length (w->line_start_cache))
|
|
|
7786 {
|
|
|
7787 /* Hit the bottom of the buffer. */
|
|
|
7788 int adjustment =
|
|
|
7789 (cur_elt + new_line) - Dynarr_length (w->line_start_cache) + 1;
|
|
272
|
7790 Lisp_Object window;
|
|
0
|
7791 int defheight;
|
|
|
7792
|
|
|
7793 XSETWINDOW (window, w);
|
|
|
7794 default_face_height_and_width (window, &defheight, 0);
|
|
|
7795
|
|
|
7796 cur_elt = Dynarr_length (w->line_start_cache) - 1;
|
|
|
7797
|
|
|
7798 pixpos -= (adjustment * defheight);
|
|
|
7799 if (pixpos < WINDOW_TEXT_TOP (w))
|
|
|
7800 pixpos = WINDOW_TEXT_TOP (w);
|
|
|
7801 }
|
|
|
7802 else
|
|
|
7803 cur_elt = cur_elt + new_line;
|
|
|
7804
|
|
|
7805 search_point = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
7806
|
|
|
7807 retval = start_with_line_at_pixpos (w, search_point, pixpos);
|
|
|
7808 w->line_cache_validation_override--;
|
|
|
7809 return retval;
|
|
|
7810 }
|
|
|
7811 }
|
|
|
7812
|
|
|
7813 /* This is used to speed up vertical scrolling by caching the known
|
|
|
7814 buffer starting positions for display lines. This allows the
|
|
|
7815 scrolling routines to avoid costly calls to regenerate_window. If
|
|
|
7816 NO_REGEN is true then it will only add the values in the DESIRED
|
|
|
7817 display structs which are in the given range.
|
|
|
7818
|
|
|
7819 Note also that the FROM/TO values are minimums. It is possible
|
|
|
7820 that this function will actually add information outside of the
|
|
|
7821 lines containing those positions. This can't hurt but it could
|
|
|
7822 possibly help.
|
|
|
7823
|
|
|
7824 #### We currently force the cache to have only 1 contiguous region.
|
|
|
7825 It might help to make the cache a dynarr of caches so that we can
|
|
|
7826 cover more areas. This might, however, turn out to be a lot of
|
|
|
7827 overhead for too little gain. */
|
|
|
7828
|
|
|
7829 static void
|
|
|
7830 update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
|
|
|
7831 Bufpos point, int no_regen)
|
|
|
7832 {
|
|
|
7833 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7834 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7835 Bufpos low_bound, high_bound;
|
|
|
7836
|
|
|
7837 validate_line_start_cache (w);
|
|
|
7838 w->line_cache_validation_override++;
|
|
|
7839 updating_line_start_cache = 1;
|
|
|
7840
|
|
|
7841 if (from < BUF_BEGV (b))
|
|
|
7842 from = BUF_BEGV (b);
|
|
|
7843 if (to > BUF_ZV (b))
|
|
|
7844 to = BUF_ZV (b);
|
|
|
7845
|
|
|
7846 if (from > to)
|
|
|
7847 {
|
|
|
7848 updating_line_start_cache = 0;
|
|
|
7849 w->line_cache_validation_override--;
|
|
|
7850 return;
|
|
|
7851 }
|
|
|
7852
|
|
|
7853 if (Dynarr_length (cache))
|
|
|
7854 {
|
|
|
7855 low_bound = line_start_cache_start (w);
|
|
|
7856 high_bound = line_start_cache_end (w);
|
|
|
7857
|
|
|
7858 /* Check to see if the desired range is already in the cache. */
|
|
|
7859 if (from >= low_bound && to <= high_bound)
|
|
|
7860 {
|
|
|
7861 updating_line_start_cache = 0;
|
|
|
7862 w->line_cache_validation_override--;
|
|
|
7863 return;
|
|
|
7864 }
|
|
|
7865
|
|
|
7866 /* Check to make sure that the desired range is adjacent to the
|
|
|
7867 current cache. If not, invalidate the cache. */
|
|
|
7868 if (to < low_bound || from > high_bound)
|
|
|
7869 {
|
|
|
7870 Dynarr_reset (cache);
|
|
|
7871 low_bound = high_bound = -1;
|
|
|
7872 }
|
|
|
7873 }
|
|
|
7874 else
|
|
|
7875 {
|
|
|
7876 low_bound = high_bound = -1;
|
|
|
7877 }
|
|
|
7878
|
|
|
7879 w->line_cache_last_updated = make_int (BUF_MODIFF (b));
|
|
|
7880
|
|
|
7881 /* This could be integrated into the next two sections, but it is easier
|
|
|
7882 to follow what's going on by having it separate. */
|
|
|
7883 if (no_regen)
|
|
|
7884 {
|
|
|
7885 Bufpos start, end;
|
|
|
7886
|
|
|
7887 update_internal_cache_list (w, DESIRED_DISP);
|
|
|
7888 if (!Dynarr_length (internal_cache))
|
|
|
7889 {
|
|
|
7890 updating_line_start_cache = 0;
|
|
|
7891 w->line_cache_validation_override--;
|
|
|
7892 return;
|
|
|
7893 }
|
|
|
7894
|
|
|
7895 start = Dynarr_atp (internal_cache, 0)->start;
|
|
|
7896 end =
|
|
|
7897 Dynarr_atp (internal_cache, Dynarr_length (internal_cache) - 1)->end;
|
|
|
7898
|
|
|
7899 /* We aren't allowed to generate additional information to fill in
|
|
|
7900 gaps, so if the DESIRED structs don't overlap the cache, reset the
|
|
|
7901 cache. */
|
|
|
7902 if (Dynarr_length (cache))
|
|
|
7903 {
|
|
|
7904 if (end < low_bound || start > high_bound)
|
|
|
7905 Dynarr_reset (cache);
|
|
|
7906
|
|
|
7907 /* #### What should really happen if what we are doing is
|
|
|
7908 extending a line (the last line)? */
|
|
|
7909 if (Dynarr_length (cache) == 1
|
|
|
7910 && Dynarr_length (internal_cache) == 1)
|
|
|
7911 Dynarr_reset (cache);
|
|
|
7912 }
|
|
|
7913
|
|
|
7914 if (!Dynarr_length (cache))
|
|
|
7915 {
|
|
|
7916 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7917 Dynarr_length (internal_cache));
|
|
|
7918 updating_line_start_cache = 0;
|
|
|
7919 w->line_cache_validation_override--;
|
|
|
7920 return;
|
|
|
7921 }
|
|
|
7922
|
|
|
7923 /* An extra check just in case the calling function didn't pass in
|
|
|
7924 the bounds of the DESIRED structs in the first place. */
|
|
|
7925 if (start >= low_bound && end <= high_bound)
|
|
|
7926 {
|
|
|
7927 updating_line_start_cache = 0;
|
|
|
7928 w->line_cache_validation_override--;
|
|
|
7929 return;
|
|
|
7930 }
|
|
|
7931
|
|
|
7932 /* At this point we know that the internal cache partially overlaps
|
|
|
7933 the main cache. */
|
|
|
7934 if (start < low_bound)
|
|
|
7935 {
|
|
|
7936 int ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
7937 while (ic_elt >= 0)
|
|
|
7938 {
|
|
|
7939 if (Dynarr_atp (internal_cache, ic_elt)->start < low_bound)
|
|
|
7940 break;
|
|
|
7941 else
|
|
|
7942 ic_elt--;
|
|
|
7943 }
|
|
|
7944
|
|
|
7945 if (!(ic_elt >= 0))
|
|
|
7946 {
|
|
|
7947 Dynarr_reset (cache);
|
|
|
7948 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7949 Dynarr_length (internal_cache));
|
|
|
7950 updating_line_start_cache = 0;
|
|
|
7951 w->line_cache_validation_override--;
|
|
|
7952 return;
|
|
|
7953 }
|
|
|
7954
|
|
|
7955 Dynarr_insert_many_at_start (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7956 ic_elt + 1);
|
|
|
7957 }
|
|
|
7958
|
|
|
7959 if (end > high_bound)
|
|
|
7960 {
|
|
|
7961 int ic_elt = 0;
|
|
|
7962
|
|
|
7963 while (ic_elt < Dynarr_length (internal_cache))
|
|
|
7964 {
|
|
|
7965 if (Dynarr_atp (internal_cache, ic_elt)->start > high_bound)
|
|
|
7966 break;
|
|
|
7967 else
|
|
|
7968 ic_elt++;
|
|
|
7969 }
|
|
|
7970
|
|
|
7971 if (!(ic_elt < Dynarr_length (internal_cache)))
|
|
|
7972 {
|
|
|
7973 Dynarr_reset (cache);
|
|
|
7974 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7975 Dynarr_length (internal_cache));
|
|
|
7976 updating_line_start_cache = 0;
|
|
|
7977 w->line_cache_validation_override--;
|
|
|
7978 return;
|
|
|
7979 }
|
|
|
7980
|
|
|
7981 Dynarr_add_many (cache, Dynarr_atp (internal_cache, ic_elt),
|
|
|
7982 Dynarr_length (internal_cache) - ic_elt);
|
|
|
7983 }
|
|
|
7984
|
|
|
7985 updating_line_start_cache = 0;
|
|
|
7986 w->line_cache_validation_override--;
|
|
|
7987 return;
|
|
|
7988 }
|
|
|
7989
|
|
|
7990 if (!Dynarr_length (cache) || from < low_bound)
|
|
|
7991 {
|
|
|
7992 Bufpos startp = find_next_newline_no_quit (b, from, -1);
|
|
|
7993 int marker = 0;
|
|
|
7994 int old_lb = low_bound;
|
|
|
7995
|
|
|
7996 while (startp < old_lb || low_bound == -1)
|
|
|
7997 {
|
|
|
7998 int ic_elt;
|
|
272
|
7999 Bufpos new_startp;
|
|
0
|
8000
|
|
|
8001 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
8002 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
8003
|
|
|
8004 /* If this assert is triggered then regenerate_window failed
|
|
|
8005 to layout a single line. That is not supposed to be
|
|
|
8006 possible because we impose a minimum height on the buffer
|
|
|
8007 and override vertical clip when we are in here. */
|
|
|
8008 /* #### Ah, but it is because the window may temporarily
|
|
|
8009 exist but not have any lines at all if the minibuffer is
|
|
|
8010 real big. Look into that situation better. */
|
|
|
8011 if (!Dynarr_length (internal_cache))
|
|
|
8012 {
|
|
|
8013 if (old_lb == -1 && low_bound == -1)
|
|
|
8014 {
|
|
|
8015 updating_line_start_cache = 0;
|
|
|
8016 w->line_cache_validation_override--;
|
|
|
8017 return;
|
|
|
8018 }
|
|
|
8019
|
|
|
8020 assert (Dynarr_length (internal_cache));
|
|
|
8021 }
|
|
|
8022 assert (startp == Dynarr_atp (internal_cache, 0)->start);
|
|
|
8023
|
|
|
8024 ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
8025 if (low_bound != -1)
|
|
|
8026 {
|
|
|
8027 while (ic_elt >= 0)
|
|
|
8028 {
|
|
|
8029 if (Dynarr_atp (internal_cache, ic_elt)->start < old_lb)
|
|
|
8030 break;
|
|
|
8031 else
|
|
|
8032 ic_elt--;
|
|
|
8033 }
|
|
|
8034 }
|
|
|
8035 assert (ic_elt >= 0);
|
|
|
8036
|
|
272
|
8037 new_startp = Dynarr_atp (internal_cache, ic_elt)->end + 1;
|
|
|
8038
|
|
|
8039 /*
|
|
|
8040 * Handle invisible text properly:
|
|
380
|
8041 * If the last line we're inserting has the same end as the
|
|
272
|
8042 * line before which it will be added, merge the two lines.
|
|
|
8043 */
|
|
|
8044 if (Dynarr_length (cache) &&
|
|
|
8045 Dynarr_atp (internal_cache, ic_elt)->end ==
|
|
|
8046 Dynarr_atp (cache, marker)->end)
|
|
|
8047 {
|
|
|
8048 Dynarr_atp (cache, marker)->start
|
|
|
8049 = Dynarr_atp (internal_cache, ic_elt)->start;
|
|
|
8050 Dynarr_atp (cache, marker)->height
|
|
|
8051 = Dynarr_atp (internal_cache, ic_elt)->height;
|
|
|
8052 ic_elt--;
|
|
|
8053 }
|
|
|
8054
|
|
|
8055 if (ic_elt >= 0) /* we still have lines to add.. */
|
|
|
8056 {
|
|
|
8057 Dynarr_insert_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8058 ic_elt + 1, marker);
|
|
|
8059 marker += (ic_elt + 1);
|
|
|
8060 }
|
|
0
|
8061
|
|
|
8062 if (startp < low_bound || low_bound == -1)
|
|
|
8063 low_bound = startp;
|
|
272
|
8064 startp = new_startp;
|
|
0
|
8065 if (startp > BUF_ZV (b))
|
|
|
8066 {
|
|
|
8067 updating_line_start_cache = 0;
|
|
|
8068 w->line_cache_validation_override--;
|
|
|
8069 return;
|
|
|
8070 }
|
|
|
8071 }
|
|
|
8072 }
|
|
|
8073
|
|
|
8074 assert (Dynarr_length (cache));
|
|
|
8075 assert (from >= low_bound);
|
|
|
8076
|
|
|
8077 /* Readjust the high_bound to account for any changes made while
|
|
|
8078 correcting the low_bound. */
|
|
|
8079 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
8080
|
|
|
8081 if (to > high_bound)
|
|
|
8082 {
|
|
|
8083 Bufpos startp = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end + 1;
|
|
|
8084
|
|
|
8085 do
|
|
|
8086 {
|
|
|
8087 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
8088 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
8089
|
|
|
8090 /* See comment above about regenerate_window failing. */
|
|
|
8091 assert (Dynarr_length (internal_cache));
|
|
|
8092
|
|
|
8093 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8094 Dynarr_length (internal_cache));
|
|
|
8095 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
8096 startp = high_bound + 1;
|
|
|
8097 }
|
|
|
8098 while (to > high_bound);
|
|
|
8099 }
|
|
|
8100
|
|
|
8101 updating_line_start_cache = 0;
|
|
|
8102 w->line_cache_validation_override--;
|
|
|
8103 assert (to <= high_bound);
|
|
|
8104 }
|
|
|
8105
|
|
|
8106
|
|
|
8107 /* Given x and y coordinates in characters, relative to a window,
|
|
|
8108 return the pixel location corresponding to those coordinates. The
|
|
|
8109 pixel location returned is the center of the given character
|
|
|
8110 position. The pixel values are generated relative to the window,
|
|
|
8111 not the frame.
|
|
|
8112
|
|
|
8113 The modeline is considered to be part of the window. */
|
|
|
8114
|
|
|
8115 void
|
|
|
8116 glyph_to_pixel_translation (struct window *w, int char_x, int char_y,
|
|
|
8117 int *pix_x, int *pix_y)
|
|
|
8118 {
|
|
|
8119 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
8120 int num_disp_lines, modeline;
|
|
272
|
8121 Lisp_Object window;
|
|
0
|
8122 int defheight, defwidth;
|
|
|
8123
|
|
|
8124 XSETWINDOW (window, w);
|
|
|
8125 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
8126
|
|
|
8127 /* If we get a bogus value indicating somewhere above or to the left of
|
|
|
8128 the window, use the first window line or character position
|
|
|
8129 instead. */
|
|
|
8130 if (char_y < 0)
|
|
|
8131 char_y = 0;
|
|
|
8132 if (char_x < 0)
|
|
|
8133 char_x = 0;
|
|
|
8134
|
|
|
8135 num_disp_lines = Dynarr_length (dla);
|
|
|
8136 modeline = 0;
|
|
|
8137 if (num_disp_lines)
|
|
|
8138 {
|
|
|
8139 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
8140 {
|
|
|
8141 num_disp_lines--;
|
|
|
8142 modeline = 1;
|
|
|
8143 }
|
|
|
8144 }
|
|
|
8145
|
|
|
8146 /* First check if the y position intersects the display lines. */
|
|
|
8147 if (char_y < num_disp_lines)
|
|
|
8148 {
|
|
|
8149 struct display_line *dl = Dynarr_atp (dla, char_y + modeline);
|
|
|
8150 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
8151
|
|
|
8152 *pix_y = (dl->ypos - dl->ascent +
|
|
|
8153 ((unsigned int) (dl->ascent + dl->descent - dl->clip) >> 1));
|
|
|
8154
|
|
|
8155 if (char_x < Dynarr_length (db->runes))
|
|
|
8156 {
|
|
|
8157 struct rune *rb = Dynarr_atp (db->runes, char_x);
|
|
|
8158
|
|
|
8159 *pix_x = rb->xpos + (rb->width >> 1);
|
|
|
8160 }
|
|
|
8161 else
|
|
|
8162 {
|
|
|
8163 int last_rune = Dynarr_length (db->runes) - 1;
|
|
|
8164 struct rune *rb = Dynarr_atp (db->runes, last_rune);
|
|
|
8165
|
|
|
8166 char_x -= last_rune;
|
|
|
8167
|
|
|
8168 *pix_x = rb->xpos + rb->width;
|
|
|
8169 *pix_x += ((char_x - 1) * defwidth);
|
|
|
8170 *pix_x += (defwidth >> 1);
|
|
|
8171 }
|
|
|
8172 }
|
|
|
8173 else
|
|
|
8174 {
|
|
|
8175 /* It didn't intersect, so extrapolate. #### For now, we include the
|
|
|
8176 modeline in this since we don't have true character positions in
|
|
|
8177 it. */
|
|
|
8178
|
|
|
8179 if (!Dynarr_length (w->face_cachels))
|
|
|
8180 reset_face_cachels (w);
|
|
|
8181
|
|
|
8182 char_y -= num_disp_lines;
|
|
|
8183
|
|
|
8184 if (Dynarr_length (dla))
|
|
|
8185 {
|
|
|
8186 struct display_line *dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
8187 *pix_y = dl->ypos + dl->descent - dl->clip;
|
|
|
8188 }
|
|
|
8189 else
|
|
|
8190 *pix_y = WINDOW_TEXT_TOP (w);
|
|
|
8191
|
|
|
8192 *pix_y += (char_y * defheight);
|
|
|
8193 *pix_y += (defheight >> 1);
|
|
|
8194
|
|
|
8195 *pix_x = WINDOW_TEXT_LEFT (w);
|
|
|
8196 /* Don't adjust by one because this is still the unadjusted value. */
|
|
|
8197 *pix_x += (char_x * defwidth);
|
|
|
8198 *pix_x += (defwidth >> 1);
|
|
|
8199 }
|
|
|
8200
|
|
|
8201 if (*pix_x > w->pixel_left + w->pixel_width)
|
|
185
|
8202 *pix_x = w->pixel_left + w->pixel_width;
|
|
0
|
8203 if (*pix_y > w->pixel_top + w->pixel_height)
|
|
185
|
8204 *pix_y = w->pixel_top + w->pixel_height;
|
|
0
|
8205
|
|
|
8206 *pix_x -= w->pixel_left;
|
|
|
8207 *pix_y -= w->pixel_top;
|
|
|
8208 }
|
|
|
8209
|
|
|
8210 /* Given a display line and a position, determine if there is a glyph
|
|
|
8211 there and return information about it if there is. */
|
|
|
8212
|
|
|
8213 static void
|
|
|
8214 get_position_object (struct display_line *dl, Lisp_Object *obj1,
|
|
|
8215 Lisp_Object *obj2, int x_coord, int *low_x_coord,
|
|
|
8216 int *high_x_coord)
|
|
|
8217 {
|
|
|
8218 struct display_block *db;
|
|
|
8219 int elt;
|
|
|
8220 int block =
|
|
|
8221 get_next_display_block (dl->bounds, dl->display_blocks, x_coord, 0);
|
|
|
8222
|
|
|
8223 /* We use get_next_display_block to get the actual display block
|
|
|
8224 that would be displayed at x_coord. */
|
|
|
8225
|
|
|
8226 if (block == NO_BLOCK)
|
|
|
8227 return;
|
|
|
8228 else
|
|
|
8229 db = Dynarr_atp (dl->display_blocks, block);
|
|
|
8230
|
|
|
8231 for (elt = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
8232 {
|
|
|
8233 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
8234
|
|
|
8235 if (rb->xpos <= x_coord && x_coord < (rb->xpos + rb->width))
|
|
|
8236 {
|
|
|
8237 if (rb->type == RUNE_DGLYPH)
|
|
|
8238 {
|
|
|
8239 *obj1 = rb->object.dglyph.glyph;
|
|
|
8240 *obj2 = rb->object.dglyph.extent;
|
|
|
8241 }
|
|
|
8242 else
|
|
|
8243 {
|
|
|
8244 *obj1 = Qnil;
|
|
|
8245 *obj2 = Qnil;
|
|
|
8246 }
|
|
|
8247
|
|
|
8248 if (low_x_coord)
|
|
|
8249 *low_x_coord = rb->xpos;
|
|
|
8250 if (high_x_coord)
|
|
|
8251 *high_x_coord = rb->xpos + rb->width;
|
|
|
8252
|
|
|
8253 return;
|
|
|
8254 }
|
|
|
8255 }
|
|
|
8256 }
|
|
|
8257
|
|
|
8258 #define UPDATE_CACHE_RETURN \
|
|
|
8259 do { \
|
|
|
8260 d->pixel_to_glyph_cache.valid = 1; \
|
|
|
8261 d->pixel_to_glyph_cache.low_x_coord = low_x_coord; \
|
|
|
8262 d->pixel_to_glyph_cache.high_x_coord = high_x_coord; \
|
|
|
8263 d->pixel_to_glyph_cache.low_y_coord = low_y_coord; \
|
|
|
8264 d->pixel_to_glyph_cache.high_y_coord = high_y_coord; \
|
|
|
8265 d->pixel_to_glyph_cache.frame = f; \
|
|
|
8266 d->pixel_to_glyph_cache.col = *col; \
|
|
|
8267 d->pixel_to_glyph_cache.row = *row; \
|
|
|
8268 d->pixel_to_glyph_cache.obj_x = *obj_x; \
|
|
|
8269 d->pixel_to_glyph_cache.obj_y = *obj_y; \
|
|
|
8270 d->pixel_to_glyph_cache.w = *w; \
|
|
|
8271 d->pixel_to_glyph_cache.bufpos = *bufpos; \
|
|
|
8272 d->pixel_to_glyph_cache.closest = *closest; \
|
|
|
8273 d->pixel_to_glyph_cache.modeline_closest = *modeline_closest; \
|
|
|
8274 d->pixel_to_glyph_cache.obj1 = *obj1; \
|
|
|
8275 d->pixel_to_glyph_cache.obj2 = *obj2; \
|
|
|
8276 d->pixel_to_glyph_cache.retval = position; \
|
|
380
|
8277 RETURN_SANS_WARNINGS position; \
|
|
0
|
8278 } while (0)
|
|
|
8279
|
|
|
8280 /* Given x and y coordinates in pixels relative to a frame, return
|
|
|
8281 information about what is located under those coordinates.
|
|
|
8282
|
|
|
8283 The return value will be one of:
|
|
|
8284
|
|
|
8285 OVER_TOOLBAR: over one of the 4 frame toolbars
|
|
|
8286 OVER_MODELINE: over a modeline
|
|
|
8287 OVER_BORDER: over an internal border
|
|
|
8288 OVER_NOTHING: over the text area, but not over text
|
|
|
8289 OVER_OUTSIDE: outside of the frame border
|
|
|
8290 OVER_TEXT: over text in the text area
|
|
|
8291
|
|
|
8292 OBJ1 is one of
|
|
|
8293
|
|
|
8294 -- a toolbar button
|
|
|
8295 -- a glyph
|
|
|
8296 -- nil if the coordinates are not over a glyph or a toolbar button.
|
|
|
8297
|
|
|
8298 OBJ2 is one of
|
|
|
8299
|
|
|
8300 -- an extent, if the coordinates are over a glyph in the text area
|
|
|
8301 -- nil otherwise.
|
|
|
8302
|
|
|
8303 If the coordinates are over a glyph, OBJ_X and OBJ_Y give the
|
|
|
8304 equivalent coordinates relative to the upper-left corner of the glyph.
|
|
|
8305
|
|
|
8306 If the coordinates are over a character, OBJ_X and OBJ_Y give the
|
|
|
8307 equivalent coordinates relative to the upper-left corner of the character.
|
|
|
8308
|
|
|
8309 Otherwise, OBJ_X and OBJ_Y are undefined.
|
|
|
8310 */
|
|
|
8311
|
|
|
8312 int
|
|
|
8313 pixel_to_glyph_translation (struct frame *f, int x_coord, int y_coord,
|
|
|
8314 int *col, int *row, int *obj_x, int *obj_y,
|
|
|
8315 struct window **w, Bufpos *bufpos,
|
|
|
8316 Bufpos *closest, Charcount *modeline_closest,
|
|
|
8317 Lisp_Object *obj1, Lisp_Object *obj2)
|
|
|
8318 {
|
|
|
8319 struct device *d;
|
|
|
8320 struct pixel_to_glyph_translation_cache *cache;
|
|
|
8321 Lisp_Object window;
|
|
|
8322 int frm_left, frm_right, frm_top, frm_bottom;
|
|
|
8323 int low_x_coord, high_x_coord, low_y_coord, high_y_coord;
|
|
|
8324 int position = OVER_NOTHING;
|
|
|
8325 int device_check_failed = 0;
|
|
|
8326 display_line_dynarr *dla;
|
|
|
8327
|
|
|
8328 /* This is a safety valve in case this got called with a frame in
|
|
|
8329 the middle of being deleted. */
|
|
|
8330 if (!DEVICEP (f->device) || !DEVICE_LIVE_P (XDEVICE (f->device)))
|
|
173
|
8331 {
|
|
|
8332 device_check_failed = 1;
|
|
|
8333 d = NULL, cache = NULL; /* Warning suppression */
|
|
|
8334 }
|
|
0
|
8335 else
|
|
|
8336 {
|
|
|
8337 d = XDEVICE (f->device);
|
|
|
8338 cache = &d->pixel_to_glyph_cache;
|
|
|
8339 }
|
|
|
8340
|
|
|
8341 if (!device_check_failed
|
|
|
8342 && cache->valid
|
|
|
8343 && cache->frame == f
|
|
|
8344 && cache->low_x_coord <= x_coord
|
|
|
8345 && cache->high_x_coord > x_coord
|
|
|
8346 && cache->low_y_coord <= y_coord
|
|
|
8347 && cache->high_y_coord > y_coord)
|
|
|
8348 {
|
|
|
8349 *col = cache->col;
|
|
|
8350 *row = cache->row;
|
|
|
8351 *obj_x = cache->obj_x;
|
|
|
8352 *obj_y = cache->obj_y;
|
|
|
8353 *w = cache->w;
|
|
|
8354 *bufpos = cache->bufpos;
|
|
|
8355 *closest = cache->closest;
|
|
|
8356 *modeline_closest = cache->modeline_closest;
|
|
|
8357 *obj1 = cache->obj1;
|
|
|
8358 *obj2 = cache->obj2;
|
|
|
8359
|
|
|
8360 return cache->retval;
|
|
|
8361 }
|
|
|
8362 else
|
|
|
8363 {
|
|
|
8364 *col = 0;
|
|
|
8365 *row = 0;
|
|
|
8366 *obj_x = 0;
|
|
|
8367 *obj_y = 0;
|
|
|
8368 *w = 0;
|
|
|
8369 *bufpos = 0;
|
|
|
8370 *closest = 0;
|
|
|
8371 *modeline_closest = -1;
|
|
|
8372 *obj1 = Qnil;
|
|
|
8373 *obj2 = Qnil;
|
|
|
8374
|
|
|
8375 low_x_coord = x_coord;
|
|
|
8376 high_x_coord = x_coord + 1;
|
|
|
8377 low_y_coord = y_coord;
|
|
|
8378 high_y_coord = y_coord + 1;
|
|
|
8379 }
|
|
|
8380
|
|
|
8381 if (device_check_failed)
|
|
|
8382 return OVER_NOTHING;
|
|
|
8383
|
|
|
8384 frm_left = FRAME_LEFT_BORDER_END (f);
|
|
|
8385 frm_right = FRAME_RIGHT_BORDER_START (f);
|
|
|
8386 frm_top = FRAME_TOP_BORDER_END (f);
|
|
|
8387 frm_bottom = FRAME_BOTTOM_BORDER_START (f);
|
|
|
8388
|
|
|
8389 /* Check if the mouse is outside of the text area actually used by
|
|
|
8390 redisplay. */
|
|
|
8391 if (y_coord < frm_top)
|
|
|
8392 {
|
|
|
8393 if (y_coord >= FRAME_TOP_BORDER_START (f))
|
|
|
8394 {
|
|
|
8395 low_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
8396 high_y_coord = frm_top;
|
|
|
8397 position = OVER_BORDER;
|
|
|
8398 }
|
|
|
8399 else if (y_coord >= 0)
|
|
|
8400 {
|
|
|
8401 low_y_coord = 0;
|
|
|
8402 high_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
8403 position = OVER_TOOLBAR;
|
|
|
8404 }
|
|
|
8405 else
|
|
|
8406 {
|
|
|
8407 low_y_coord = y_coord;
|
|
|
8408 high_y_coord = 0;
|
|
|
8409 position = OVER_OUTSIDE;
|
|
|
8410 }
|
|
|
8411 }
|
|
|
8412 else if (y_coord >= frm_bottom)
|
|
|
8413 {
|
|
|
8414 if (y_coord < FRAME_BOTTOM_BORDER_END (f))
|
|
|
8415 {
|
|
|
8416 low_y_coord = frm_bottom;
|
|
|
8417 high_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
8418 position = OVER_BORDER;
|
|
|
8419 }
|
|
|
8420 else if (y_coord < FRAME_PIXHEIGHT (f))
|
|
|
8421 {
|
|
|
8422 low_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
8423 high_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
8424 position = OVER_TOOLBAR;
|
|
|
8425 }
|
|
|
8426 else
|
|
|
8427 {
|
|
|
8428 low_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
8429 high_y_coord = y_coord;
|
|
|
8430 position = OVER_OUTSIDE;
|
|
|
8431 }
|
|
|
8432 }
|
|
|
8433
|
|
|
8434 if (position != OVER_TOOLBAR && position != OVER_BORDER)
|
|
|
8435 {
|
|
|
8436 if (x_coord < frm_left)
|
|
|
8437 {
|
|
|
8438 if (x_coord >= FRAME_LEFT_BORDER_START (f))
|
|
|
8439 {
|
|
|
8440 low_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
8441 high_x_coord = frm_left;
|
|
|
8442 position = OVER_BORDER;
|
|
|
8443 }
|
|
|
8444 else if (x_coord >= 0)
|
|
|
8445 {
|
|
|
8446 low_x_coord = 0;
|
|
|
8447 high_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
8448 position = OVER_TOOLBAR;
|
|
|
8449 }
|
|
|
8450 else
|
|
|
8451 {
|
|
|
8452 low_x_coord = x_coord;
|
|
|
8453 high_x_coord = 0;
|
|
|
8454 position = OVER_OUTSIDE;
|
|
|
8455 }
|
|
|
8456 }
|
|
|
8457 else if (x_coord >= frm_right)
|
|
|
8458 {
|
|
|
8459 if (x_coord < FRAME_RIGHT_BORDER_END (f))
|
|
|
8460 {
|
|
|
8461 low_x_coord = frm_right;
|
|
|
8462 high_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
8463 position = OVER_BORDER;
|
|
|
8464 }
|
|
|
8465 else if (x_coord < FRAME_PIXWIDTH (f))
|
|
|
8466 {
|
|
|
8467 low_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
8468 high_x_coord = FRAME_PIXWIDTH (f);
|
|
|
8469 position = OVER_TOOLBAR;
|
|
|
8470 }
|
|
|
8471 else
|
|
|
8472 {
|
|
|
8473 low_x_coord = FRAME_PIXWIDTH (f);
|
|
|
8474 high_x_coord = x_coord;
|
|
|
8475 position = OVER_OUTSIDE;
|
|
|
8476 }
|
|
|
8477 }
|
|
|
8478 }
|
|
|
8479
|
|
|
8480 #ifdef HAVE_TOOLBARS
|
|
|
8481 if (position == OVER_TOOLBAR)
|
|
|
8482 {
|
|
|
8483 *obj1 = toolbar_button_at_pixpos (f, x_coord, y_coord);
|
|
|
8484 *obj2 = Qnil;
|
|
|
8485 *w = 0;
|
|
|
8486 UPDATE_CACHE_RETURN;
|
|
|
8487 }
|
|
183
|
8488 #endif /* HAVE_TOOLBARS */
|
|
0
|
8489
|
|
|
8490 /* We still have to return the window the pointer is next to and its
|
|
|
8491 relative y position even if it is outside the x boundary. */
|
|
|
8492 if (x_coord < frm_left)
|
|
|
8493 x_coord = frm_left;
|
|
|
8494 else if (x_coord > frm_right)
|
|
|
8495 x_coord = frm_right;
|
|
|
8496
|
|
|
8497 /* Same in reverse. */
|
|
|
8498 if (y_coord < frm_top)
|
|
|
8499 y_coord = frm_top;
|
|
|
8500 else if (y_coord > frm_bottom)
|
|
|
8501 y_coord = frm_bottom;
|
|
|
8502
|
|
|
8503 /* Find what window the given coordinates are actually in. */
|
|
|
8504 window = f->root_window;
|
|
|
8505 *w = find_window_by_pixel_pos (x_coord, y_coord, window);
|
|
|
8506
|
|
|
8507 /* If we didn't find a window, we're done. */
|
|
|
8508 if (!*w)
|
|
|
8509 {
|
|
|
8510 UPDATE_CACHE_RETURN;
|
|
|
8511 }
|
|
|
8512 else if (position != OVER_NOTHING)
|
|
|
8513 {
|
|
|
8514 *closest = 0;
|
|
|
8515 *modeline_closest = -1;
|
|
|
8516
|
|
|
8517 if (high_y_coord <= frm_top || high_y_coord >= frm_bottom)
|
|
|
8518 {
|
|
|
8519 *w = 0;
|
|
|
8520 UPDATE_CACHE_RETURN;
|
|
|
8521 }
|
|
|
8522 }
|
|
|
8523
|
|
|
8524 /* Check if the window is a minibuffer but isn't active. */
|
|
|
8525 if (MINI_WINDOW_P (*w) && !minibuf_level)
|
|
|
8526 {
|
|
|
8527 /* Must reset the window value since some callers will ignore
|
|
|
8528 the return value if it is set. */
|
|
|
8529 *w = 0;
|
|
|
8530 UPDATE_CACHE_RETURN;
|
|
|
8531 }
|
|
|
8532
|
|
284
|
8533 /* See if the point is over window vertical divider */
|
|
|
8534 if (window_needs_vertical_divider (*w))
|
|
|
8535 {
|
|
|
8536 int div_x_high = WINDOW_RIGHT (*w);
|
|
|
8537 int div_x_low = div_x_high - window_divider_width (*w);
|
|
|
8538 int div_y_high = WINDOW_BOTTOM (*w);
|
|
|
8539 int div_y_low = WINDOW_TOP (*w);
|
|
|
8540
|
|
|
8541 if (div_x_low < x_coord && x_coord <= div_x_high &&
|
|
|
8542 div_y_low < y_coord && y_coord <= div_y_high)
|
|
|
8543 {
|
|
|
8544 low_x_coord = div_x_low;
|
|
|
8545 high_x_coord = div_x_high;
|
|
|
8546 low_y_coord = div_y_low;
|
|
|
8547 high_y_coord = div_y_high;
|
|
|
8548 position = OVER_V_DIVIDER;
|
|
|
8549 UPDATE_CACHE_RETURN;
|
|
|
8550 }
|
|
|
8551 }
|
|
|
8552
|
|
0
|
8553 dla = window_display_lines (*w, CURRENT_DISP);
|
|
|
8554
|
|
|
8555 for (*row = 0; *row < Dynarr_length (dla); (*row)++)
|
|
|
8556 {
|
|
|
8557 int really_over_nothing = 0;
|
|
|
8558 struct display_line *dl = Dynarr_atp (dla, *row);
|
|
|
8559
|
|
|
8560 if ((int) (dl->ypos - dl->ascent) <= y_coord
|
|
|
8561 && y_coord <= (int) (dl->ypos + dl->descent))
|
|
|
8562 {
|
|
|
8563 int check_margin_glyphs = 0;
|
|
|
8564 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
8565 struct rune *rb = 0;
|
|
|
8566
|
|
|
8567 if (x_coord < dl->bounds.left_white
|
|
|
8568 || x_coord >= dl->bounds.right_white)
|
|
|
8569 check_margin_glyphs = 1;
|
|
|
8570
|
|
|
8571 low_y_coord = dl->ypos - dl->ascent;
|
|
|
8572 high_y_coord = dl->ypos + dl->descent + 1;
|
|
|
8573
|
|
|
8574 if (position == OVER_BORDER
|
|
|
8575 || position == OVER_OUTSIDE
|
|
|
8576 || check_margin_glyphs)
|
|
|
8577 {
|
|
|
8578 int x_check, left_bound;
|
|
|
8579
|
|
|
8580 if (check_margin_glyphs)
|
|
|
8581 {
|
|
|
8582 x_check = x_coord;
|
|
|
8583 left_bound = dl->bounds.left_white;
|
|
|
8584 }
|
|
|
8585 else
|
|
|
8586 {
|
|
|
8587 x_check = high_x_coord;
|
|
|
8588 left_bound = frm_left;
|
|
|
8589 }
|
|
|
8590
|
|
|
8591 if (Dynarr_length (db->runes))
|
|
|
8592 {
|
|
|
8593 if (x_check <= left_bound)
|
|
|
8594 {
|
|
|
8595 if (dl->modeline)
|
|
|
8596 *modeline_closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
8597 else
|
|
|
8598 *closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
8599 }
|
|
|
8600 else
|
|
|
8601 {
|
|
|
8602 if (dl->modeline)
|
|
|
8603 *modeline_closest =
|
|
|
8604 Dynarr_atp (db->runes,
|
|
|
8605 Dynarr_length (db->runes) - 1)->bufpos;
|
|
|
8606 else
|
|
|
8607 *closest =
|
|
|
8608 Dynarr_atp (db->runes,
|
|
183
|
8609 Dynarr_length (db->runes) - 1)->bufpos;
|
|
0
|
8610 }
|
|
|
8611
|
|
|
8612 if (dl->modeline)
|
|
|
8613 *modeline_closest += dl->offset;
|
|
|
8614 else
|
|
|
8615 *closest += dl->offset;
|
|
|
8616 }
|
|
|
8617 else
|
|
|
8618 {
|
|
|
8619 /* #### What should be here. */
|
|
|
8620 if (dl->modeline)
|
|
|
8621 *modeline_closest = 0;
|
|
|
8622 else
|
|
|
8623 *closest = 0;
|
|
|
8624 }
|
|
|
8625
|
|
|
8626 if (check_margin_glyphs)
|
|
|
8627 {
|
|
|
8628 if (x_coord < dl->bounds.left_in
|
|
|
8629 || x_coord >= dl->bounds.right_in)
|
|
|
8630 {
|
|
|
8631 /* If we are over the outside margins then we
|
|
|
8632 know the loop over the text block isn't going
|
|
|
8633 to accomplish anything. So we go ahead and
|
|
|
8634 set what information we can right here and
|
|
|
8635 return. */
|
|
|
8636 (*row)--;
|
|
|
8637 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
8638 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
8639 &low_x_coord, &high_x_coord);
|
|
|
8640
|
|
|
8641 UPDATE_CACHE_RETURN;
|
|
|
8642 }
|
|
|
8643 }
|
|
|
8644 else
|
|
|
8645 UPDATE_CACHE_RETURN;
|
|
|
8646 }
|
|
|
8647
|
|
|
8648 for (*col = 0; *col <= Dynarr_length (db->runes); (*col)++)
|
|
|
8649 {
|
|
|
8650 int past_end = (*col == Dynarr_length (db->runes));
|
|
|
8651
|
|
|
8652 if (!past_end)
|
|
|
8653 rb = Dynarr_atp (db->runes, *col);
|
|
|
8654
|
|
|
8655 if (past_end ||
|
|
|
8656 (rb->xpos <= x_coord && x_coord < rb->xpos + rb->width))
|
|
|
8657 {
|
|
|
8658 if (past_end)
|
|
|
8659 {
|
|
|
8660 (*col)--;
|
|
|
8661 rb = Dynarr_atp (db->runes, *col);
|
|
|
8662 }
|
|
|
8663
|
|
|
8664 *bufpos = rb->bufpos + dl->offset;
|
|
|
8665 low_x_coord = rb->xpos;
|
|
|
8666 high_x_coord = rb->xpos + rb->width;
|
|
|
8667
|
|
|
8668 if (rb->type == RUNE_DGLYPH)
|
|
|
8669 {
|
|
|
8670 int elt = *col + 1;
|
|
|
8671
|
|
|
8672 /* Find the first character after the glyph. */
|
|
|
8673 while (elt < Dynarr_length (db->runes))
|
|
|
8674 {
|
|
|
8675 if (Dynarr_atp (db->runes, elt)->type != RUNE_DGLYPH)
|
|
|
8676 {
|
|
|
8677 if (dl->modeline)
|
|
|
8678 *modeline_closest =
|
|
|
8679 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
8680 dl->offset);
|
|
|
8681 else
|
|
|
8682 *closest =
|
|
|
8683 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
8684 dl->offset);
|
|
|
8685 break;
|
|
|
8686 }
|
|
|
8687
|
|
|
8688 elt++;
|
|
|
8689 }
|
|
|
8690
|
|
|
8691 /* In this case we failed to find a non-glyph
|
|
|
8692 character so we return the last position
|
|
|
8693 displayed on the line. */
|
|
|
8694 if (elt == Dynarr_length (db->runes))
|
|
|
8695 {
|
|
|
8696 if (dl->modeline)
|
|
|
8697 *modeline_closest = dl->end_bufpos + dl->offset;
|
|
|
8698 else
|
|
|
8699 *closest = dl->end_bufpos + dl->offset;
|
|
|
8700 really_over_nothing = 1;
|
|
183
|
8701 }
|
|
0
|
8702 }
|
|
|
8703 else
|
|
|
8704 {
|
|
|
8705 if (dl->modeline)
|
|
|
8706 *modeline_closest = rb->bufpos + dl->offset;
|
|
|
8707 else
|
|
|
8708 *closest = rb->bufpos + dl->offset;
|
|
|
8709 }
|
|
|
8710
|
|
|
8711 if (dl->modeline)
|
|
|
8712 {
|
|
|
8713 *row = window_displayed_height (*w);
|
|
|
8714
|
|
|
8715 if (position == OVER_NOTHING)
|
|
|
8716 position = OVER_MODELINE;
|
|
|
8717
|
|
|
8718 if (rb->type == RUNE_DGLYPH)
|
|
|
8719 {
|
|
|
8720 *obj1 = rb->object.dglyph.glyph;
|
|
|
8721 *obj2 = rb->object.dglyph.extent;
|
|
|
8722 }
|
|
|
8723 else if (rb->type == RUNE_CHAR)
|
|
|
8724 {
|
|
|
8725 *obj1 = Qnil;
|
|
|
8726 *obj2 = Qnil;
|
|
|
8727 }
|
|
|
8728 else
|
|
|
8729 {
|
|
|
8730 *obj1 = Qnil;
|
|
|
8731 *obj2 = Qnil;
|
|
|
8732 }
|
|
|
8733
|
|
|
8734 UPDATE_CACHE_RETURN;
|
|
|
8735 }
|
|
|
8736 else if (past_end
|
|
|
8737 || (rb->type == RUNE_CHAR
|
|
|
8738 && rb->object.chr.ch == '\n'))
|
|
|
8739 {
|
|
|
8740 (*row)--;
|
|
|
8741 /* At this point we may have glyphs in the right
|
|
|
8742 inside margin. */
|
|
|
8743 if (check_margin_glyphs)
|
|
|
8744 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
8745 &low_x_coord, &high_x_coord);
|
|
|
8746 UPDATE_CACHE_RETURN;
|
|
|
8747 }
|
|
|
8748 else
|
|
|
8749 {
|
|
|
8750 (*row)--;
|
|
|
8751 if (rb->type == RUNE_DGLYPH)
|
|
|
8752 {
|
|
|
8753 *obj1 = rb->object.dglyph.glyph;
|
|
|
8754 *obj2 = rb->object.dglyph.extent;
|
|
|
8755 }
|
|
|
8756 else if (rb->type == RUNE_CHAR)
|
|
|
8757 {
|
|
|
8758 *obj1 = Qnil;
|
|
|
8759 *obj2 = Qnil;
|
|
|
8760 }
|
|
|
8761 else
|
|
|
8762 {
|
|
|
8763 *obj1 = Qnil;
|
|
|
8764 *obj2 = Qnil;
|
|
|
8765 }
|
|
|
8766
|
|
|
8767 *obj_x = x_coord - rb->xpos;
|
|
|
8768 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
8769
|
|
|
8770 /* At this point we may have glyphs in the left
|
|
|
8771 inside margin. */
|
|
|
8772 if (check_margin_glyphs)
|
|
|
8773 get_position_object (dl, obj1, obj2, x_coord, 0, 0);
|
|
|
8774
|
|
|
8775 if (position == OVER_NOTHING && !really_over_nothing)
|
|
|
8776 position = OVER_TEXT;
|
|
|
8777
|
|
|
8778 UPDATE_CACHE_RETURN;
|
|
|
8779 }
|
|
|
8780 }
|
|
|
8781 }
|
|
|
8782 }
|
|
|
8783 }
|
|
|
8784
|
|
|
8785 *row = Dynarr_length (dla) - 1;
|
|
|
8786 if (FRAME_WIN_P (f))
|
|
|
8787 {
|
|
|
8788 int bot_elt = Dynarr_length (dla) - 1;
|
|
|
8789
|
|
|
8790 if (bot_elt >= 0)
|
|
|
8791 {
|
|
|
8792 struct display_line *dl = Dynarr_atp (dla, bot_elt);
|
|
|
8793 int adj_area = y_coord - (dl->ypos + dl->descent);
|
|
272
|
8794 Lisp_Object lwin;
|
|
0
|
8795 int defheight;
|
|
|
8796
|
|
|
8797 XSETWINDOW (lwin, *w);
|
|
|
8798 default_face_height_and_width (lwin, 0, &defheight);
|
|
|
8799
|
|
|
8800 *row += (adj_area / defheight);
|
|
|
8801 }
|
|
|
8802 }
|
|
|
8803
|
|
|
8804 /* #### This should be checked out some more to determine what
|
|
|
8805 should really be going on. */
|
|
|
8806 if (!MARKERP ((*w)->start[CURRENT_DISP]))
|
|
|
8807 *closest = 0;
|
|
|
8808 else
|
|
404
|
8809 *closest = end_of_last_line_may_error (*w,
|
|
0
|
8810 marker_position ((*w)->start[CURRENT_DISP]));
|
|
|
8811 *col = 0;
|
|
|
8812 UPDATE_CACHE_RETURN;
|
|
|
8813 }
|
|
|
8814 #undef UPDATE_CACHE_RETURN
|
|
|
8815
|
|
|
8816
|
|
|
8817 /***************************************************************************/
|
|
|
8818 /* */
|
|
|
8819 /* Lisp functions */
|
|
|
8820 /* */
|
|
|
8821 /***************************************************************************/
|
|
|
8822
|
|
20
|
8823 DEFUN ("redisplay-echo-area", Fredisplay_echo_area, 0, 0, 0, /*
|
|
0
|
8824 Ensure that all minibuffers are correctly showing the echo area.
|
|
20
|
8825 */
|
|
|
8826 ())
|
|
0
|
8827 {
|
|
|
8828 Lisp_Object devcons, concons;
|
|
|
8829
|
|
|
8830 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
8831 {
|
|
|
8832 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
8833 Lisp_Object frmcons;
|
|
|
8834
|
|
|
8835 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
8836 {
|
|
|
8837 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
8838
|
|
108
|
8839 if (FRAME_REPAINT_P (f) && FRAME_HAS_MINIBUF_P (f))
|
|
0
|
8840 {
|
|
|
8841 Lisp_Object window = FRAME_MINIBUF_WINDOW (f);
|
|
215
|
8842 /*
|
|
217
|
8843 * If the frame size has changed, there may be random
|
|
|
8844 * chud on the screen left from previous messages
|
|
|
8845 * because redisplay_frame hasn't been called yet.
|
|
|
8846 * Clear the screen to get rid of the potential mess.
|
|
215
|
8847 */
|
|
217
|
8848 if (f->echo_area_garbaged)
|
|
|
8849 {
|
|
|
8850 DEVMETH (d, clear_frame, (f));
|
|
|
8851 f->echo_area_garbaged = 0;
|
|
|
8852 }
|
|
0
|
8853 redisplay_window (window, 0);
|
|
|
8854 call_redisplay_end_triggers (XWINDOW (window), 0);
|
|
|
8855 }
|
|
|
8856 }
|
|
|
8857
|
|
|
8858 /* We now call the output_end routine for tty frames. We delay
|
|
|
8859 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
8860 encapsulation. */
|
|
|
8861 if (DEVICE_TTY_P (d))
|
|
|
8862 DEVMETH (d, output_end, (d));
|
|
|
8863 }
|
|
|
8864
|
|
|
8865 return Qnil;
|
|
|
8866 }
|
|
|
8867
|
|
|
8868 static Lisp_Object
|
|
|
8869 restore_disable_preemption_value (Lisp_Object value)
|
|
|
8870 {
|
|
|
8871 disable_preemption = XINT (value);
|
|
|
8872 return Qnil;
|
|
|
8873 }
|
|
|
8874
|
|
20
|
8875 DEFUN ("redraw-frame", Fredraw_frame, 0, 2, 0, /*
|
|
0
|
8876 Clear frame FRAME and output again what is supposed to appear on it.
|
|
|
8877 FRAME defaults to the selected frame if omitted.
|
|
|
8878 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8879 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8880 input and is guaranteed to proceed to completion.
|
|
20
|
8881 */
|
|
|
8882 (frame, no_preempt))
|
|
0
|
8883 {
|
|
|
8884 struct frame *f = decode_frame (frame);
|
|
|
8885 int count = specpdl_depth ();
|
|
|
8886
|
|
|
8887 if (!NILP (no_preempt))
|
|
|
8888 {
|
|
|
8889 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8890 make_int (disable_preemption));
|
|
|
8891 disable_preemption++;
|
|
|
8892 }
|
|
|
8893
|
|
|
8894 f->clear = 1;
|
|
|
8895 redisplay_frame (f, 1);
|
|
|
8896
|
|
404
|
8897 /* See the comment in Fredisplay_frame. */
|
|
|
8898 RESET_CHANGED_SET_FLAGS;
|
|
|
8899
|
|
0
|
8900 return unbind_to (count, Qnil);
|
|
|
8901 }
|
|
|
8902
|
|
20
|
8903 DEFUN ("redisplay-frame", Fredisplay_frame, 0, 2, 0, /*
|
|
0
|
8904 Ensure that FRAME's contents are correctly displayed.
|
|
|
8905 This differs from `redraw-frame' in that it only redraws what needs to
|
|
|
8906 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
8907 the frame.
|
|
|
8908 FRAME defaults to the selected frame if omitted.
|
|
|
8909 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8910 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8911 input and is guaranteed to proceed to completion.
|
|
20
|
8912 */
|
|
|
8913 (frame, no_preempt))
|
|
0
|
8914 {
|
|
|
8915 struct frame *f = decode_frame (frame);
|
|
|
8916 int count = specpdl_depth ();
|
|
|
8917
|
|
|
8918 if (!NILP (no_preempt))
|
|
|
8919 {
|
|
|
8920 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8921 make_int (disable_preemption));
|
|
|
8922 disable_preemption++;
|
|
|
8923 }
|
|
|
8924
|
|
|
8925 redisplay_frame (f, 1);
|
|
|
8926
|
|
404
|
8927 /* If we don't reset the global redisplay flafs here, subsequent
|
|
|
8928 changes to the display will not get registered by redisplay
|
|
|
8929 because it thinks it already has registered changes. If you
|
|
|
8930 really knew what you were doing you could confuse redisplay by
|
|
|
8931 calling Fredisplay_frame while updating another frame. We assume
|
|
|
8932 that if you know what you are doing you will not be that
|
|
|
8933 stupid. */
|
|
|
8934 RESET_CHANGED_SET_FLAGS;
|
|
|
8935
|
|
0
|
8936 return unbind_to (count, Qnil);
|
|
|
8937 }
|
|
|
8938
|
|
20
|
8939 DEFUN ("redraw-device", Fredraw_device, 0, 2, 0, /*
|
|
0
|
8940 Clear device DEVICE and output again what is supposed to appear on it.
|
|
|
8941 DEVICE defaults to the selected device if omitted.
|
|
|
8942 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8943 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8944 input and is guaranteed to proceed to completion.
|
|
20
|
8945 */
|
|
70
|
8946 (device, no_preempt))
|
|
0
|
8947 {
|
|
|
8948 struct device *d = decode_device (device);
|
|
|
8949 Lisp_Object frmcons;
|
|
|
8950 int count = specpdl_depth ();
|
|
|
8951
|
|
|
8952 if (!NILP (no_preempt))
|
|
|
8953 {
|
|
|
8954 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8955 make_int (disable_preemption));
|
|
|
8956 disable_preemption++;
|
|
|
8957 }
|
|
|
8958
|
|
|
8959 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
8960 {
|
|
|
8961 XFRAME (XCAR (frmcons))->clear = 1;
|
|
|
8962 }
|
|
398
|
8963 redisplay_device (d, 0);
|
|
0
|
8964
|
|
404
|
8965 /* See the comment in Fredisplay_frame. */
|
|
|
8966 RESET_CHANGED_SET_FLAGS;
|
|
|
8967
|
|
0
|
8968 return unbind_to (count, Qnil);
|
|
|
8969 }
|
|
|
8970
|
|
20
|
8971 DEFUN ("redisplay-device", Fredisplay_device, 0, 2, 0, /*
|
|
0
|
8972 Ensure that DEVICE's contents are correctly displayed.
|
|
|
8973 This differs from `redraw-device' in that it only redraws what needs to
|
|
|
8974 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
8975 the device.
|
|
|
8976 DEVICE defaults to the selected device if omitted.
|
|
|
8977 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8978 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8979 input and is guaranteed to proceed to completion.
|
|
20
|
8980 */
|
|
|
8981 (device, no_preempt))
|
|
0
|
8982 {
|
|
|
8983 struct device *d = decode_device (device);
|
|
|
8984 int count = specpdl_depth ();
|
|
|
8985
|
|
|
8986 if (!NILP (no_preempt))
|
|
|
8987 {
|
|
|
8988 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8989 make_int (disable_preemption));
|
|
|
8990 disable_preemption++;
|
|
|
8991 }
|
|
|
8992
|
|
398
|
8993 redisplay_device (d, 0);
|
|
0
|
8994
|
|
404
|
8995 /* See the comment in Fredisplay_frame. */
|
|
|
8996 RESET_CHANGED_SET_FLAGS;
|
|
|
8997
|
|
0
|
8998 return unbind_to (count, Qnil);
|
|
|
8999 }
|
|
|
9000
|
|
|
9001 /* Big lie. Big lie. This will force all modelines to be updated
|
|
|
9002 regardless if the all flag is set or not. It remains in existence
|
|
|
9003 solely for backwards compatibility. */
|
|
20
|
9004 DEFUN ("redraw-modeline", Fredraw_modeline, 0, 1, 0, /*
|
|
0
|
9005 Force the modeline of the current buffer to be redisplayed.
|
|
|
9006 With optional non-nil ALL, force redisplay of all modelines.
|
|
20
|
9007 */
|
|
|
9008 (all))
|
|
0
|
9009 {
|
|
|
9010 MARK_MODELINE_CHANGED;
|
|
|
9011 return Qnil;
|
|
|
9012 }
|
|
|
9013
|
|
20
|
9014 DEFUN ("force-cursor-redisplay", Fforce_cursor_redisplay, 0, 1, 0, /*
|
|
0
|
9015 Force an immediate update of the cursor on FRAME.
|
|
|
9016 FRAME defaults to the selected frame if omitted.
|
|
20
|
9017 */
|
|
70
|
9018 (frame))
|
|
0
|
9019 {
|
|
|
9020 redisplay_redraw_cursor (decode_frame (frame), 1);
|
|
|
9021 return Qnil;
|
|
|
9022 }
|
|
|
9023
|
|
|
9024
|
|
|
9025 /***************************************************************************/
|
|
|
9026 /* */
|
|
|
9027 /* Lisp-variable change triggers */
|
|
|
9028 /* */
|
|
|
9029 /***************************************************************************/
|
|
|
9030
|
|
|
9031 static void
|
|
|
9032 margin_width_changed_in_frame (Lisp_Object specifier, struct frame *f,
|
|
|
9033 Lisp_Object oldval)
|
|
|
9034 {
|
|
|
9035 /* Nothing to be done? */
|
|
|
9036 }
|
|
|
9037
|
|
|
9038 int
|
|
|
9039 redisplay_variable_changed (Lisp_Object sym, Lisp_Object *val,
|
|
|
9040 Lisp_Object in_object, int flags)
|
|
|
9041 {
|
|
|
9042 /* #### clip_changed should really be renamed something like
|
|
|
9043 global_redisplay_change. */
|
|
|
9044 MARK_CLIP_CHANGED;
|
|
|
9045 return 0;
|
|
|
9046 }
|
|
|
9047
|
|
398
|
9048 /* This is called if the built-in glyphs have their properties
|
|
|
9049 changed. */
|
|
0
|
9050 void
|
|
|
9051 redisplay_glyph_changed (Lisp_Object glyph, Lisp_Object property,
|
|
|
9052 Lisp_Object locale)
|
|
|
9053 {
|
|
269
|
9054 if (WINDOWP (locale))
|
|
|
9055 {
|
|
380
|
9056 MARK_FRAME_GLYPHS_CHANGED (XFRAME (WINDOW_FRAME (XWINDOW (locale))));
|
|
269
|
9057 }
|
|
|
9058 else if (FRAMEP (locale))
|
|
|
9059 {
|
|
380
|
9060 MARK_FRAME_GLYPHS_CHANGED (XFRAME (locale));
|
|
269
|
9061 }
|
|
|
9062 else if (DEVICEP (locale))
|
|
|
9063 {
|
|
|
9064 Lisp_Object frmcons;
|
|
|
9065 DEVICE_FRAME_LOOP (frmcons, XDEVICE (locale))
|
|
380
|
9066 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
269
|
9067 }
|
|
|
9068 else if (CONSOLEP (locale))
|
|
|
9069 {
|
|
|
9070 Lisp_Object frmcons, devcons;
|
|
|
9071 CONSOLE_FRAME_LOOP_NO_BREAK (frmcons, devcons, XCONSOLE (locale))
|
|
380
|
9072 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
269
|
9073 }
|
|
|
9074 else /* global or buffer */
|
|
|
9075 {
|
|
|
9076 Lisp_Object frmcons, devcons, concons;
|
|
|
9077 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
380
|
9078 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
269
|
9079 }
|
|
0
|
9080 }
|
|
|
9081
|
|
|
9082 static void
|
|
|
9083 text_cursor_visible_p_changed (Lisp_Object specifier, struct window *w,
|
|
|
9084 Lisp_Object oldval)
|
|
|
9085 {
|
|
|
9086 if (XFRAME (w->frame)->init_finished)
|
|
|
9087 Fforce_cursor_redisplay (w->frame);
|
|
|
9088 }
|
|
|
9089
|
|
|
9090 #ifdef MEMORY_USAGE_STATS
|
|
|
9091
|
|
|
9092
|
|
|
9093 /***************************************************************************/
|
|
|
9094 /* */
|
|
|
9095 /* memory usage computation */
|
|
|
9096 /* */
|
|
|
9097 /***************************************************************************/
|
|
|
9098
|
|
|
9099 static int
|
|
|
9100 compute_rune_dynarr_usage (rune_dynarr *dyn, struct overhead_stats *ovstats)
|
|
|
9101 {
|
|
183
|
9102 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
9103 }
|
|
|
9104
|
|
|
9105 static int
|
|
|
9106 compute_display_block_dynarr_usage (display_block_dynarr *dyn,
|
|
|
9107 struct overhead_stats *ovstats)
|
|
|
9108 {
|
|
183
|
9109 int total, i;
|
|
|
9110
|
|
|
9111 if (!dyn)
|
|
|
9112 return 0;
|
|
|
9113
|
|
|
9114 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
9115 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
9116 total += compute_rune_dynarr_usage (Dynarr_at (dyn, i).runes, ovstats);
|
|
0
|
9117
|
|
|
9118 return total;
|
|
|
9119 }
|
|
|
9120
|
|
|
9121 static int
|
|
|
9122 compute_glyph_block_dynarr_usage (glyph_block_dynarr *dyn,
|
|
|
9123 struct overhead_stats *ovstats)
|
|
|
9124 {
|
|
183
|
9125 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
9126 }
|
|
|
9127
|
|
|
9128 int
|
|
|
9129 compute_display_line_dynarr_usage (display_line_dynarr *dyn,
|
|
|
9130 struct overhead_stats *ovstats)
|
|
|
9131 {
|
|
183
|
9132 int total, i;
|
|
|
9133
|
|
|
9134 if (!dyn)
|
|
|
9135 return 0;
|
|
|
9136
|
|
|
9137 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
9138 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
9139 {
|
|
|
9140 struct display_line *dl = &Dynarr_at (dyn, i);
|
|
|
9141 total += compute_display_block_dynarr_usage(dl->display_blocks, ovstats);
|
|
|
9142 total += compute_glyph_block_dynarr_usage (dl->left_glyphs, ovstats);
|
|
|
9143 total += compute_glyph_block_dynarr_usage (dl->right_glyphs, ovstats);
|
|
0
|
9144 }
|
|
|
9145
|
|
|
9146 return total;
|
|
|
9147 }
|
|
|
9148
|
|
|
9149 int
|
|
|
9150 compute_line_start_cache_dynarr_usage (line_start_cache_dynarr *dyn,
|
|
|
9151 struct overhead_stats *ovstats)
|
|
|
9152 {
|
|
183
|
9153 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
9154 }
|
|
|
9155
|
|
|
9156 #endif /* MEMORY_USAGE_STATS */
|
|
|
9157
|
|
|
9158
|
|
|
9159 /***************************************************************************/
|
|
|
9160 /* */
|
|
|
9161 /* initialization */
|
|
|
9162 /* */
|
|
|
9163 /***************************************************************************/
|
|
|
9164
|
|
|
9165 void
|
|
|
9166 init_redisplay (void)
|
|
|
9167 {
|
|
|
9168 disable_preemption = 0;
|
|
|
9169 preemption_count = 0;
|
|
|
9170 max_preempts = INIT_MAX_PREEMPTS;
|
|
|
9171
|
|
398
|
9172 #ifndef PDUMP
|
|
0
|
9173 if (!initialized)
|
|
398
|
9174 #endif
|
|
|
9175 {
|
|
|
9176 if (!cmotion_display_lines)
|
|
|
9177 cmotion_display_lines = Dynarr_new (display_line);
|
|
|
9178 if (!mode_spec_bufbyte_string)
|
|
|
9179 mode_spec_bufbyte_string = Dynarr_new (Bufbyte);
|
|
|
9180 if (!formatted_string_extent_dynarr)
|
|
|
9181 formatted_string_extent_dynarr = Dynarr_new (EXTENT);
|
|
|
9182 if (!formatted_string_extent_start_dynarr)
|
|
|
9183 formatted_string_extent_start_dynarr = Dynarr_new (Bytecount);
|
|
|
9184 if (!formatted_string_extent_end_dynarr)
|
|
|
9185 formatted_string_extent_end_dynarr = Dynarr_new (Bytecount);
|
|
|
9186 if (!internal_cache)
|
|
|
9187 internal_cache = Dynarr_new (line_start_cache);
|
|
0
|
9188 }
|
|
|
9189
|
|
|
9190 /* window system is nil when in -batch mode */
|
|
|
9191 if (!initialized || noninteractive)
|
|
|
9192 return;
|
|
|
9193
|
|
|
9194 /* If the user wants to use a window system, we shouldn't bother
|
|
|
9195 initializing the terminal. This is especially important when the
|
|
|
9196 terminal is so dumb that emacs gives up before and doesn't bother
|
|
|
9197 using the window system.
|
|
|
9198
|
|
|
9199 If the DISPLAY environment variable is set, try to use X, and die
|
|
|
9200 with an error message if that doesn't work. */
|
|
|
9201
|
|
|
9202 #ifdef HAVE_X_WINDOWS
|
|
|
9203 if (!strcmp (display_use, "x"))
|
|
|
9204 {
|
|
|
9205 /* Some stuff checks this way early. */
|
|
|
9206 Vwindow_system = Qx;
|
|
|
9207 Vinitial_window_system = Qx;
|
|
|
9208 return;
|
|
|
9209 }
|
|
183
|
9210 #endif /* HAVE_X_WINDOWS */
|
|
0
|
9211
|
|
213
|
9212 #ifdef HAVE_MS_WINDOWS
|
|
|
9213 if (!strcmp (display_use, "mswindows"))
|
|
209
|
9214 {
|
|
|
9215 /* Some stuff checks this way early. */
|
|
213
|
9216 Vwindow_system = Qmswindows;
|
|
|
9217 Vinitial_window_system = Qmswindows;
|
|
209
|
9218 return;
|
|
|
9219 }
|
|
213
|
9220 #endif /* HAVE_MS_WINDOWS */
|
|
|
9221
|
|
|
9222 #ifdef HAVE_TTY
|
|
0
|
9223 /* If no window system has been specified, try to use the terminal. */
|
|
|
9224 if (!isatty (0))
|
|
|
9225 {
|
|
|
9226 stderr_out ("XEmacs: standard input is not a tty\n");
|
|
|
9227 exit (1);
|
|
|
9228 }
|
|
|
9229
|
|
|
9230 /* Look at the TERM variable */
|
|
|
9231 if (!getenv ("TERM"))
|
|
|
9232 {
|
|
|
9233 stderr_out ("Please set the environment variable TERM; see tset(1).\n");
|
|
|
9234 exit (1);
|
|
|
9235 }
|
|
|
9236
|
|
|
9237 Vinitial_window_system = Qtty;
|
|
213
|
9238 return;
|
|
|
9239 #else /* not HAVE_TTY */
|
|
|
9240 /* No DISPLAY specified, and no TTY support. */
|
|
|
9241 stderr_out ("XEmacs: Cannot open display.\n\
|
|
|
9242 Please set the environmental variable DISPLAY to an appropriate value.\n");
|
|
|
9243 exit (1);
|
|
|
9244 #endif
|
|
|
9245 /* Unreached. */
|
|
0
|
9246 }
|
|
|
9247
|
|
|
9248 void
|
|
|
9249 syms_of_redisplay (void)
|
|
|
9250 {
|
|
|
9251 defsymbol (&Qcursor_in_echo_area, "cursor-in-echo-area");
|
|
|
9252 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
9253 defsymbol (&Qpre_redisplay_hook, "pre-redisplay-hook");
|
|
|
9254 defsymbol (&Qpost_redisplay_hook, "post-redisplay-hook");
|
|
183
|
9255 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
9256 defsymbol (&Qdisplay_warning_buffer, "display-warning-buffer");
|
|
|
9257 defsymbol (&Qbar_cursor, "bar-cursor");
|
|
|
9258 defsymbol (&Qredisplay_end_trigger_functions,
|
|
|
9259 "redisplay-end-trigger-functions");
|
|
404
|
9260 defsymbol (&Qtop_bottom, "top-bottom");
|
|
406
|
9261 defsymbol (&Qbuffer_list_changed_hook, "buffer-list-changed-hook");
|
|
0
|
9262
|
|
20
|
9263 DEFSUBR (Fredisplay_echo_area);
|
|
|
9264 DEFSUBR (Fredraw_frame);
|
|
|
9265 DEFSUBR (Fredisplay_frame);
|
|
|
9266 DEFSUBR (Fredraw_device);
|
|
|
9267 DEFSUBR (Fredisplay_device);
|
|
|
9268 DEFSUBR (Fredraw_modeline);
|
|
|
9269 DEFSUBR (Fforce_cursor_redisplay);
|
|
0
|
9270 }
|
|
|
9271
|
|
|
9272 void
|
|
398
|
9273 reinit_vars_of_redisplay (void)
|
|
|
9274 {
|
|
|
9275 updating_line_start_cache = 0;
|
|
|
9276 }
|
|
|
9277
|
|
|
9278 void
|
|
0
|
9279 vars_of_redisplay (void)
|
|
|
9280 {
|
|
398
|
9281 reinit_vars_of_redisplay ();
|
|
|
9282
|
|
0
|
9283 #if 0
|
|
|
9284 staticpro (&last_arrow_position);
|
|
|
9285 staticpro (&last_arrow_string);
|
|
|
9286 last_arrow_position = Qnil;
|
|
|
9287 last_arrow_string = Qnil;
|
|
183
|
9288 #endif /* 0 */
|
|
0
|
9289
|
|
|
9290 /* #### Probably temporary */
|
|
|
9291 DEFVAR_INT ("redisplay-cache-adjustment", &cache_adjustment /*
|
|
272
|
9292 \(Temporary) Setting this will impact the performance of the internal
|
|
0
|
9293 line start cache.
|
|
|
9294 */ );
|
|
|
9295 cache_adjustment = 2;
|
|
|
9296
|
|
|
9297 DEFVAR_INT_MAGIC ("pixel-vertical-clip-threshold", &vertical_clip /*
|
|
|
9298 Minimum pixel height for clipped bottom display line.
|
|
|
9299 A clipped line shorter than this won't be displayed.
|
|
|
9300 */ ,
|
|
380
|
9301 redisplay_variable_changed);
|
|
0
|
9302 vertical_clip = 5;
|
|
|
9303
|
|
|
9304 DEFVAR_INT_MAGIC ("pixel-horizontal-clip-threshold", &horizontal_clip /*
|
|
|
9305 Minimum visible area for clipped glyphs at right boundary.
|
|
|
9306 Clipped glyphs shorter than this won't be displayed.
|
|
|
9307 Only pixmap glyph instances are currently allowed to be clipped.
|
|
|
9308 */ ,
|
|
380
|
9309 redisplay_variable_changed);
|
|
0
|
9310 horizontal_clip = 5;
|
|
|
9311
|
|
|
9312 DEFVAR_LISP ("global-mode-string", &Vglobal_mode_string /*
|
|
185
|
9313 String displayed by modeline-format's "%m" specification.
|
|
0
|
9314 */ );
|
|
|
9315 Vglobal_mode_string = Qnil;
|
|
|
9316
|
|
|
9317 DEFVAR_LISP_MAGIC ("overlay-arrow-position", &Voverlay_arrow_position /*
|
|
|
9318 Marker for where to display an arrow on top of the buffer text.
|
|
|
9319 This must be the beginning of a line in order to work.
|
|
|
9320 See also `overlay-arrow-string'.
|
|
380
|
9321 */ ,
|
|
|
9322 redisplay_variable_changed);
|
|
0
|
9323 Voverlay_arrow_position = Qnil;
|
|
|
9324
|
|
|
9325 DEFVAR_LISP_MAGIC ("overlay-arrow-string", &Voverlay_arrow_string /*
|
|
|
9326 String to display as an arrow. See also `overlay-arrow-position'.
|
|
|
9327 */ ,
|
|
380
|
9328 redisplay_variable_changed);
|
|
0
|
9329 Voverlay_arrow_string = Qnil;
|
|
|
9330
|
|
|
9331 DEFVAR_INT ("scroll-step", &scroll_step /*
|
|
|
9332 *The number of lines to try scrolling a window by when point moves out.
|
|
|
9333 If that fails to bring point back on frame, point is centered instead.
|
|
|
9334 If this is zero, point is always centered after it moves off screen.
|
|
|
9335 */ );
|
|
195
|
9336 scroll_step = 0;
|
|
|
9337
|
|
|
9338 DEFVAR_INT ("scroll-conservatively", &scroll_conservatively /*
|
|
|
9339 *Scroll up to this many lines, to bring point back on screen.
|
|
|
9340 */ );
|
|
|
9341 scroll_conservatively = 0;
|
|
0
|
9342
|
|
|
9343 DEFVAR_BOOL_MAGIC ("truncate-partial-width-windows",
|
|
|
9344 &truncate_partial_width_windows /*
|
|
|
9345 *Non-nil means truncate lines in all windows less than full frame wide.
|
|
|
9346 */ ,
|
|
380
|
9347 redisplay_variable_changed);
|
|
0
|
9348 truncate_partial_width_windows = 1;
|
|
|
9349
|
|
404
|
9350 DEFVAR_LISP ("visible-bell", &Vvisible_bell /*
|
|
|
9351 *Non-nil substitutes a visual signal for the audible bell.
|
|
|
9352
|
|
|
9353 Default behavior is to flash the whole screen. On some platforms,
|
|
|
9354 special effects are available using the following values:
|
|
|
9355
|
|
|
9356 'display Flash the whole screen (ie, the default behavior).
|
|
|
9357 'top-bottom Flash only the top and bottom lines of the selected frame.
|
|
|
9358
|
|
|
9359 When effects are unavailable on a platform, the visual bell is the
|
|
|
9360 default, whole screen. (Currently only X supports any special effects.)
|
|
0
|
9361 */ );
|
|
404
|
9362 Vvisible_bell = Qnil;
|
|
0
|
9363
|
|
|
9364 DEFVAR_BOOL ("no-redraw-on-reenter", &no_redraw_on_reenter /*
|
|
|
9365 *Non-nil means no need to redraw entire frame after suspending.
|
|
|
9366 A non-nil value is useful if the terminal can automatically preserve
|
|
|
9367 Emacs's frame display when you reenter Emacs.
|
|
|
9368 It is up to you to set this variable if your terminal can do that.
|
|
|
9369 */ );
|
|
|
9370 no_redraw_on_reenter = 0;
|
|
|
9371
|
|
|
9372 DEFVAR_LISP ("window-system", &Vwindow_system /*
|
|
|
9373 A symbol naming the window-system under which Emacs is running,
|
|
|
9374 such as `x', or nil if emacs is running on an ordinary terminal.
|
|
187
|
9375
|
|
|
9376 Do not use this variable, except for GNU Emacs compatibility, as it
|
|
|
9377 gives wrong values in a multi-device environment. Use `console-type'
|
|
|
9378 instead.
|
|
0
|
9379 */ );
|
|
|
9380 Vwindow_system = Qnil;
|
|
|
9381
|
|
|
9382 /* #### Temporary shit until window-system is eliminated. */
|
|
398
|
9383 DEFVAR_CONST_LISP ("initial-window-system", &Vinitial_window_system /*
|
|
0
|
9384 DON'T TOUCH
|
|
|
9385 */ );
|
|
|
9386 Vinitial_window_system = Qnil;
|
|
|
9387
|
|
|
9388 DEFVAR_BOOL ("cursor-in-echo-area", &cursor_in_echo_area /*
|
|
|
9389 Non-nil means put cursor in minibuffer, at end of any message there.
|
|
|
9390 */ );
|
|
|
9391 cursor_in_echo_area = 0;
|
|
|
9392
|
|
|
9393 /* #### Shouldn't this be generalized as follows:
|
|
|
9394
|
|
|
9395 if nil, use block cursor.
|
|
|
9396 if a number, use a bar cursor of that width.
|
|
|
9397 Otherwise, use a 1-pixel bar cursor.
|
|
|
9398
|
|
|
9399 #### Or better yet, this variable should be trashed entirely
|
|
|
9400 (use a Lisp-magic variable to maintain compatibility)
|
|
|
9401 and a specifier `cursor-shape' added, which allows a block
|
|
|
9402 cursor, a bar cursor, a flashing block or bar cursor,
|
|
|
9403 maybe a caret cursor, etc. */
|
|
|
9404
|
|
|
9405 DEFVAR_LISP ("bar-cursor", &Vbar_cursor /*
|
|
|
9406 Use vertical bar cursor if non-nil. If t width is 1 pixel, otherwise 2.
|
|
|
9407 */ );
|
|
|
9408 Vbar_cursor = Qnil;
|
|
|
9409
|
|
|
9410 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
9411 xxDEFVAR_LISP ("pre-redisplay-hook", &Vpre_redisplay_hook /*
|
|
|
9412 Function or functions to run before every redisplay.
|
|
|
9413 */ );
|
|
|
9414 Vpre_redisplay_hook = Qnil;
|
|
|
9415
|
|
|
9416 xxDEFVAR_LISP ("post-redisplay-hook", &Vpost_redisplay_hook /*
|
|
|
9417 Function or functions to run after every redisplay.
|
|
|
9418 */ );
|
|
|
9419 Vpost_redisplay_hook = Qnil;
|
|
183
|
9420 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
9421
|
|
406
|
9422 DEFVAR_LISP ("buffer-list-changed-hook", &Vbuffer_list_changed_hook /*
|
|
|
9423 Function or functions to call when a frame's buffer list has changed.
|
|
|
9424 This is called during redisplay, before redisplaying each frame.
|
|
|
9425 Functions on this hook are called with one argument, the frame.
|
|
|
9426 */ );
|
|
|
9427 Vbuffer_list_changed_hook = Qnil;
|
|
|
9428
|
|
0
|
9429 DEFVAR_INT ("display-warning-tick", &display_warning_tick /*
|
|
|
9430 Bump this to tell the C code to call `display-warning-buffer'
|
|
|
9431 at next redisplay. You should not normally change this; the function
|
|
|
9432 `display-warning' automatically does this at appropriate times.
|
|
|
9433 */ );
|
|
|
9434 display_warning_tick = 0;
|
|
|
9435
|
|
|
9436 DEFVAR_BOOL ("inhibit-warning-display", &inhibit_warning_display /*
|
|
|
9437 Non-nil means inhibit display of warning messages.
|
|
|
9438 You should *bind* this, not set it. Any pending warning messages
|
|
|
9439 will be displayed when the binding no longer applies.
|
|
|
9440 */ );
|
|
|
9441 /* reset to 0 by startup.el after the splash screen has displayed.
|
|
|
9442 This way, the warnings don't obliterate the splash screen. */
|
|
|
9443 inhibit_warning_display = 1;
|
|
|
9444
|
|
|
9445 DEFVAR_LISP ("window-size-change-functions",
|
|
|
9446 &Vwindow_size_change_functions /*
|
|
|
9447 Not currently implemented.
|
|
|
9448 Functions called before redisplay, if window sizes have changed.
|
|
|
9449 The value should be a list of functions that take one argument.
|
|
|
9450 Just before redisplay, for each frame, if any of its windows have changed
|
|
|
9451 size since the last redisplay, or have been split or deleted,
|
|
|
9452 all the functions in the list are called, with the frame as argument.
|
|
|
9453 */ );
|
|
|
9454 Vwindow_size_change_functions = Qnil;
|
|
|
9455
|
|
|
9456 DEFVAR_LISP ("window-scroll-functions", &Vwindow_scroll_functions /*
|
|
|
9457 Not currently implemented.
|
|
|
9458 Functions to call before redisplaying a window with scrolling.
|
|
|
9459 Each function is called with two arguments, the window
|
|
|
9460 and its new display-start position. Note that the value of `window-end'
|
|
|
9461 is not valid when these functions are called.
|
|
|
9462 */ );
|
|
|
9463 Vwindow_scroll_functions = Qnil;
|
|
|
9464
|
|
|
9465 DEFVAR_LISP ("redisplay-end-trigger-functions",
|
|
|
9466 &Vredisplay_end_trigger_functions /*
|
|
|
9467 See `set-window-redisplay-end-trigger'.
|
|
|
9468 */ );
|
|
|
9469 Vredisplay_end_trigger_functions = Qnil;
|
|
72
|
9470
|
|
|
9471 DEFVAR_BOOL ("column-number-start-at-one", &column_number_start_at_one /*
|
|
142
|
9472 *Non-nil means column display number starts at 1.
|
|
72
|
9473 */ );
|
|
294
|
9474 column_number_start_at_one = 0;
|
|
0
|
9475 }
|
|
|
9476
|
|
|
9477 void
|
|
|
9478 specifier_vars_of_redisplay (void)
|
|
|
9479 {
|
|
|
9480 DEFVAR_SPECIFIER ("left-margin-width", &Vleft_margin_width /*
|
|
|
9481 *Width of left margin.
|
|
|
9482 This is a specifier; use `set-specifier' to change it.
|
|
|
9483 */ );
|
|
|
9484 Vleft_margin_width = Fmake_specifier (Qnatnum);
|
|
183
|
9485 set_specifier_fallback (Vleft_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
9486 set_specifier_caching (Vleft_margin_width,
|
|
398
|
9487 offsetof (struct window, left_margin_width),
|
|
0
|
9488 some_window_value_changed,
|
|
398
|
9489 offsetof (struct frame, left_margin_width),
|
|
0
|
9490 margin_width_changed_in_frame);
|
|
|
9491
|
|
|
9492 DEFVAR_SPECIFIER ("right-margin-width", &Vright_margin_width /*
|
|
|
9493 *Width of right margin.
|
|
|
9494 This is a specifier; use `set-specifier' to change it.
|
|
|
9495 */ );
|
|
|
9496 Vright_margin_width = Fmake_specifier (Qnatnum);
|
|
183
|
9497 set_specifier_fallback (Vright_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
9498 set_specifier_caching (Vright_margin_width,
|
|
398
|
9499 offsetof (struct window, right_margin_width),
|
|
0
|
9500 some_window_value_changed,
|
|
398
|
9501 offsetof (struct frame, right_margin_width),
|
|
0
|
9502 margin_width_changed_in_frame);
|
|
|
9503
|
|
|
9504 DEFVAR_SPECIFIER ("minimum-line-ascent", &Vminimum_line_ascent /*
|
|
|
9505 *Minimum ascent height of lines.
|
|
|
9506 This is a specifier; use `set-specifier' to change it.
|
|
|
9507 */ );
|
|
|
9508 Vminimum_line_ascent = Fmake_specifier (Qnatnum);
|
|
183
|
9509 set_specifier_fallback (Vminimum_line_ascent, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
9510 set_specifier_caching (Vminimum_line_ascent,
|
|
398
|
9511 offsetof (struct window, minimum_line_ascent),
|
|
0
|
9512 some_window_value_changed,
|
|
|
9513 0, 0);
|
|
|
9514
|
|
|
9515 DEFVAR_SPECIFIER ("minimum-line-descent", &Vminimum_line_descent /*
|
|
|
9516 *Minimum descent height of lines.
|
|
|
9517 This is a specifier; use `set-specifier' to change it.
|
|
|
9518 */ );
|
|
|
9519 Vminimum_line_descent = Fmake_specifier (Qnatnum);
|
|
183
|
9520 set_specifier_fallback (Vminimum_line_descent, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
9521 set_specifier_caching (Vminimum_line_descent,
|
|
398
|
9522 offsetof (struct window, minimum_line_descent),
|
|
0
|
9523 some_window_value_changed,
|
|
|
9524 0, 0);
|
|
|
9525
|
|
|
9526 DEFVAR_SPECIFIER ("use-left-overflow", &Vuse_left_overflow /*
|
|
|
9527 *Non-nil means use the left outside margin as extra whitespace when
|
|
|
9528 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
9529 This is a specifier; use `set-specifier' to change it.
|
|
|
9530 */ );
|
|
|
9531 Vuse_left_overflow = Fmake_specifier (Qboolean);
|
|
183
|
9532 set_specifier_fallback (Vuse_left_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
0
|
9533 set_specifier_caching (Vuse_left_overflow,
|
|
398
|
9534 offsetof (struct window, use_left_overflow),
|
|
0
|
9535 some_window_value_changed,
|
|
|
9536 0, 0);
|
|
|
9537
|
|
|
9538 DEFVAR_SPECIFIER ("use-right-overflow", &Vuse_right_overflow /*
|
|
|
9539 *Non-nil means use the right outside margin as extra whitespace when
|
|
|
9540 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
9541 This is a specifier; use `set-specifier' to change it.
|
|
|
9542 */ );
|
|
|
9543 Vuse_right_overflow = Fmake_specifier (Qboolean);
|
|
183
|
9544 set_specifier_fallback (Vuse_right_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
0
|
9545 set_specifier_caching (Vuse_right_overflow,
|
|
398
|
9546 offsetof (struct window, use_right_overflow),
|
|
0
|
9547 some_window_value_changed,
|
|
|
9548 0, 0);
|
|
|
9549
|
|
|
9550 DEFVAR_SPECIFIER ("text-cursor-visible-p", &Vtext_cursor_visible_p /*
|
|
|
9551 *Non-nil means the text cursor is visible (this is usually the case).
|
|
|
9552 This is a specifier; use `set-specifier' to change it.
|
|
|
9553 */ );
|
|
|
9554 Vtext_cursor_visible_p = Fmake_specifier (Qboolean);
|
|
183
|
9555 set_specifier_fallback (Vtext_cursor_visible_p, list1 (Fcons (Qnil, Qt)));
|
|
0
|
9556 set_specifier_caching (Vtext_cursor_visible_p,
|
|
398
|
9557 offsetof (struct window, text_cursor_visible_p),
|
|
0
|
9558 text_cursor_visible_p_changed,
|
|
|
9559 0, 0);
|
|
72
|
9560
|
|
0
|
9561 }
|
