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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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412
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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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54 #include "insdel.h"
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55 #include "menubar.h"
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56 #include "objects.h"
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57 #include "process.h"
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58 #include "redisplay.h"
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59 #include "toolbar.h"
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60 #include "window.h"
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211
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61 #include "line-number.h"
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259
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62 #ifdef FILE_CODING
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63 #include "file-coding.h"
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70
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64 #endif
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16
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65
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149
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66 #ifdef HAVE_TTY
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67 #include "console-tty.h"
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412
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68 #ifdef HAVE_UNISTD_H
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69 #include <unistd.h> /* for isatty() */
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70 #endif
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272
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71 #endif /* HAVE_TTY */
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149
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72
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0
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73 /* Note: We have to be careful throughout this code to properly handle
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74 and differentiate between Bufbytes and Emchars.
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75
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76 Since strings are generally composed of Bufbytes, I've taken the tack
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77 that any contiguous set of Bufbytes is called a "string", while
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78 any contiguous set of Emchars is called an "array". */
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79
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80 /* Return value to indicate a failure by an add_*_rune routine to add
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81 a rune, but no propagation information needs to be returned. */
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82 #define ADD_FAILED (prop_block_dynarr *) 1
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83
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84 #define BEGIN_GLYPHS 0
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85 #define END_GLYPHS 1
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86 #define LEFT_GLYPHS 2
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87 #define RIGHT_GLYPHS 3
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88
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412
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89 /* Set the vertical clip to 0 if we are currently updating the line
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90 start cache. Otherwise for buffers of line height 1 it may fail to
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91 be able to work properly because regenerate_window will not layout
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92 a single line. */
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0
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93 #define VERTICAL_CLIP(w, display) \
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412
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94 (updating_line_start_cache \
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95 ? 0 \
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96 : ((WINDOW_TTY_P (w) | (!display && scroll_on_clipped_lines)) \
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0
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97 ? INT_MAX \
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412
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98 : vertical_clip))
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0
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99
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100 /* The following structures are completely private to redisplay.c so
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101 we put them here instead of in a header file, for modularity. */
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102
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103 /* NOTE: Bytinds not Bufpos's in this structure. */
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104
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105 typedef struct position_redisplay_data_type
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106 {
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107 /* This information is normally filled in by the create_*_block
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108 routines and is used by the add_*_rune routines. */
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109 Lisp_Object window;
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110 struct device *d;
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111 struct display_block *db;
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112 struct display_line *dl;
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113 Emchar ch; /* Character that is to be added. This is
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114 used to communicate this information to
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115 add_emchar_rune(). */
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116 Lisp_Object last_charset; /* The charset of the previous character.
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117 Used to optimize some lookups -- we
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118 only have to do some things when
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119 the charset changes. */
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94
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120 face_index last_findex; /* The face index of the previous character.
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121 Needed to ensure the validity of the
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122 last_charset optimization. */
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183
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123
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0
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124 int last_char_width; /* The width of the previous character. */
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125 int font_is_bogus; /* If true, it means we couldn't instantiate
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126 the font for this charset, so we substitute
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127 ~'s from the ASCII charset. */
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128 Bytind bi_bufpos;
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129 Bytind bi_endpos;
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130 int pixpos;
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131 int max_pixpos;
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132 int blank_width; /* Width of the blank that is to be added.
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133 This is used to communicate this information
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134 to add_blank_rune().
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135
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136 This is also used rather cheesily to
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137 communicate the width of the eol-cursor-size
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138 blank that exists at the end of the line.
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139 add_emchar_rune() is called cheesily with
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140 the non-printing char '\n', which is stuck
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141 in the output routines with its width being
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142 BLANK_WIDTH. */
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143 Bytind bi_cursor_bufpos;/* This stores the buffer position of the cursor. */
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144 unsigned int cursor_type :3;
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145 int cursor_x; /* rune block cursor is at */
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146 int start_col; /* Number of character columns (each column has
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147 a width of the default char width) that still
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148 need to be skipped. This is used for horizontal
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149 scrolling, where a certain number of columns
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150 (those off the left side of the screen) need
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151 to be skipped before anything is displayed. */
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152 Bytind bi_start_col_enabled;
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153
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217
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154 int hscroll_glyph_width_adjust; /* how much the width of the hscroll
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155 glyph differs from space_width (w).
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156 0 if no hscroll glyph was used,
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157 i.e. the window is not scrolled
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158 horizontally. Used in tab
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159 calculations. */
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160
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0
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161 /* Information about the face the text should be displayed in and
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162 any begin-glyphs and end-glyphs. */
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163 struct extent_fragment *ef;
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164 face_index findex;
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165
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166 /* The height of a pixmap may either be predetermined if the user
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2
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167 has set a baseline value, or it may be dependent on whatever the
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168 line ascent and descent values end up being, based just on font
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0
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169 information. In the first case we can immediately update the
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170 values, thus their inclusion here. In the last case we cannot
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171 determine the actual contribution to the line height until we
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172 have finished laying out all text on the line. Thus we propagate
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173 the max height of such pixmaps and do a final calculation after
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174 all text has been added to the line. */
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175 int new_ascent;
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176 int new_descent;
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177 int max_pixmap_height;
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178
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179 Lisp_Object result_str; /* String where we put the result of
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180 generating a formatted string in the modeline. */
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181 int is_modeline; /* Non-zero if we're generating the modeline. */
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182 Charcount modeline_charpos; /* Number of chars used in result_str so far;
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183 corresponds to bytepos. */
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184 Bytecount bytepos; /* Number of bytes used in result_str so far.
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185 We don't actually copy the bytes into result_str
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186 until the end because we don't know how big the
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187 string is going to be until then. */
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188 } pos_data;
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189
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190 enum prop_type
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191 {
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192 PROP_STRING,
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193 PROP_CHAR,
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194 PROP_MINIBUF_PROMPT,
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195 PROP_BLANK
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196 };
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197
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198 /* Data that should be propagated to the next line. Either a single
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199 Emchar or a string of Bufbyte's.
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200
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201 The actual data that is propagated ends up as a Dynarr of these
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202 blocks.
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203
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204 #### It's unclean that both Emchars and Bufbytes are here.
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205 */
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206
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185
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207 typedef struct prop_block prop_block;
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0
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208 struct prop_block
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209 {
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210 enum prop_type type;
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183
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211
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0
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212 union data
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272
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213 {
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214 struct
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215 {
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216 Bufbyte *str;
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217 Bytecount len; /* length of the string. */
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218 } p_string;
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219
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220 struct
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221 {
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222 Emchar ch;
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223 Bytind bi_cursor_bufpos; /* NOTE: is in Bytinds */
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224 unsigned int cursor_type :3;
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225 } p_char;
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226
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227 struct
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228 {
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229 int width;
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230 face_index findex;
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231 } p_blank;
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232 } data;
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0
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233 };
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234
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185
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235 typedef struct
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0
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236 {
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185
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237 Dynarr_declare (prop_block);
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0
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238 } prop_block_dynarr;
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239
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240
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412
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241 static void generate_formatted_string_db (Lisp_Object format_str,
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242 Lisp_Object result_str,
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243 struct window *w,
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244 struct display_line *dl,
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245 struct display_block *db,
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246 face_index findex, int min_pixpos,
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247 int max_pixpos, int type);
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0
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248 static Charcount generate_fstring_runes (struct window *w, pos_data *data,
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249 Charcount pos, Charcount min_pos,
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284
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250 Charcount max_pos, Lisp_Object elt,
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0
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251 int depth, int max_pixsize,
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412
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252 face_index findex, int type);
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0
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253 static prop_block_dynarr *add_glyph_rune (pos_data *data,
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254 struct glyph_block *gb,
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255 int pos_type, int allow_cursor,
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256 struct glyph_cachel *cachel);
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257 static Bytind create_text_block (struct window *w, struct display_line *dl,
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412
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258 Bytind bi_start_pos, int start_col,
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259 prop_block_dynarr **prop,
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384
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260 int type);
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0
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261 static int create_overlay_glyph_block (struct window *w,
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262 struct display_line *dl);
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263 static void create_left_glyph_block (struct window *w,
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264 struct display_line *dl,
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265 int overlay_width);
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266 static void create_right_glyph_block (struct window *w,
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267 struct display_line *dl);
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268 static void redisplay_windows (Lisp_Object window, int skip_selected);
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269 static void decode_mode_spec (struct window *w, Emchar spec, int type);
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270 static void free_display_line (struct display_line *dl);
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271 static void update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
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272 Bufpos point, int no_regen);
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272
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273 static int point_visible (struct window *w, Bufpos point, int type);
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0
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274
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275 /* This used to be 10 but 30 seems to give much better performance. */
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276 #define INIT_MAX_PREEMPTS 30
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277 static int max_preempts;
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278
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272
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279 #define REDISPLAY_PREEMPTION_CHECK \
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280 ((void) \
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281 (preempted = \
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282 (!disable_preemption && \
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283 ((preemption_count < max_preempts) || !NILP (Vexecuting_macro)) && \
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284 (!INTERACTIVE || detect_input_pending ()))))
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0
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285
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286 /*
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287 * Redisplay global variables.
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288 */
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289
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290 /* We need a third set of display structures for the cursor motion
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291 routines. We used to just give each window a third set. However,
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292 we always fully regenerate the structures when needed so there
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293 isn't any reason we need more than a single set. */
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294 display_line_dynarr *cmotion_display_lines;
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295
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412
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296 /* Used by generate_formatted_string. Global because they get used so
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297 much that the dynamic allocation time adds up. */
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298 Emchar_dynarr *formatted_string_emchar_dynarr;
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299 struct display_line formatted_string_display_line;
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0
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300 /* We store the extents that we need to generate in a Dynarr and then
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301 frob them all on at the end of generating the string. We do it
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302 this way rather than adding them as we generate the string because
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303 we don't store the text into the resulting string until we're done
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304 (to avoid having to resize the string multiple times), and we don't
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305 want to go around adding extents to a string when the extents might
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306 stretch off the end of the string. */
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412
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307 EXTENT_dynarr *formatted_string_extent_dynarr;
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308 Bytecount_dynarr *formatted_string_extent_start_dynarr;
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309 Bytecount_dynarr *formatted_string_extent_end_dynarr;
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0
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310
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311
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312 /* #### probably temporary */
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313 int cache_adjustment;
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314
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315 /* This holds a string representing the text corresponding to a single
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316 modeline % spec. */
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185
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317 static Bufbyte_dynarr *mode_spec_bufbyte_string;
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0
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318
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319 int in_display; /* 1 if in redisplay. */
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320
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321 int disable_preemption; /* Used for debugging redisplay and for
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322 force-redisplay. */
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323
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324 /* We only allow max_preempts preemptions before we force a redisplay. */
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325 static int preemption_count;
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326
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327 /* Minimum pixel height of clipped bottom display line. */
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328 int vertical_clip;
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329
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330 /* Minimum visible pixel width of clipped glyphs at right margin. */
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331 int horizontal_clip;
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332
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412
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333 /* Set if currently inside update_line_start_cache. */
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334 int updating_line_start_cache;
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335
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0
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336 /* Nonzero means reading single-character input with prompt
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337 so put cursor on minibuffer after the prompt. */
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338 int cursor_in_echo_area;
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339 Lisp_Object Qcursor_in_echo_area;
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340
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341 /* Nonzero means truncate lines in all windows less wide than the frame */
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342 int truncate_partial_width_windows;
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343
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344 /* non-nil if a buffer has changed since the last time redisplay completed */
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345 int buffers_changed;
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346 int buffers_changed_set;
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347
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348 /* non-nil if hscroll has changed somewhere or a buffer has been
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349 narrowed or widened */
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350 int clip_changed;
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351 int clip_changed_set;
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352
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353 /* non-nil if any extent has changed since the last time redisplay completed */
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354 int extents_changed;
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355 int extents_changed_set;
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356
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357 /* non-nil if any face has changed since the last time redisplay completed */
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358 int faces_changed;
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359
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360 /* Nonzero means some frames have been marked as garbaged */
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361 int frame_changed;
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362
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269
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363 /* non-zero if any of the builtin display glyphs (continuation,
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364 hscroll, control-arrow, etc) is in need of updating
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365 somewhere. */
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366 int glyphs_changed;
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367 int glyphs_changed_set;
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368
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412
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369 /* non-zero if any displayed subwindow is in need of updating
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370 somewhere. */
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384
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371 int subwindows_changed;
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372 int subwindows_changed_set;
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373
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183
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374 /* This variable is 1 if the icon has to be updated.
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0
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375 It is set to 1 when `frame-icon-glyph' changes. */
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376 int icon_changed;
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377 int icon_changed_set;
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378
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183
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379 /* This variable is 1 if the menubar widget has to be updated.
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0
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380 It is set to 1 by set-menubar-dirty-flag and cleared when the widget
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269
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381 has been updated. */
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0
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382 int menubar_changed;
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383 int menubar_changed_set;
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384
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385 /* true iff we should redraw the modelines on the next redisplay */
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386 int modeline_changed;
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387 int modeline_changed_set;
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388
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389 /* non-nil if point has changed in some buffer since the last time
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390 redisplay completed */
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391 int point_changed;
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392 int point_changed_set;
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393
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394 /* non-nil if some frame has changed its size */
|
|
|
395 int size_changed;
|
|
|
396
|
|
|
397 /* non-nil if some device has signaled that it wants to change size */
|
|
|
398 int asynch_device_change_pending;
|
|
|
399
|
|
|
400 /* non-nil if any toolbar has changed */
|
|
|
401 int toolbar_changed;
|
|
|
402 int toolbar_changed_set;
|
|
|
403
|
|
|
404 /* non-nil if any window has changed since the last time redisplay completed */
|
|
|
405 int windows_changed;
|
|
|
406
|
|
2
|
407 /* non-nil if any frame's window structure has changed since the last
|
|
0
|
408 time redisplay completed */
|
|
|
409 int windows_structure_changed;
|
|
|
410
|
|
|
411 /* If non-nil, use vertical bar cursor. */
|
|
|
412 Lisp_Object Vbar_cursor;
|
|
|
413 Lisp_Object Qbar_cursor;
|
|
|
414
|
|
412
|
415
|
|
|
416 int visible_bell; /* If true and the terminal will support it
|
|
|
417 then the frame will flash instead of
|
|
|
418 beeping when an error occurs */
|
|
0
|
419
|
|
|
420 /* Nonzero means no need to redraw the entire frame on resuming
|
|
|
421 a suspended Emacs. This is useful on terminals with multiple pages,
|
|
|
422 where one page is used for Emacs and another for all else. */
|
|
|
423 int no_redraw_on_reenter;
|
|
|
424
|
|
|
425 Lisp_Object Vwindow_system; /* nil or a symbol naming the window system
|
|
|
426 under which emacs is running
|
|
|
427 ('x is the only current possibility) */
|
|
|
428 Lisp_Object Vinitial_window_system;
|
|
|
429
|
|
|
430 Lisp_Object Vglobal_mode_string;
|
|
|
431
|
|
195
|
432 /* The number of lines scroll a window by when point leaves the window; if
|
|
0
|
433 it is <=0 then point is centered in the window */
|
|
|
434 int scroll_step;
|
|
|
435
|
|
195
|
436 /* Scroll up to this many lines, to bring point back on screen. */
|
|
|
437 int scroll_conservatively;
|
|
|
438
|
|
0
|
439 /* Marker for where to display an arrow on top of the buffer text. */
|
|
|
440 Lisp_Object Voverlay_arrow_position;
|
|
|
441 /* String to display for the arrow. */
|
|
|
442 Lisp_Object Voverlay_arrow_string;
|
|
|
443
|
|
|
444 Lisp_Object Vwindow_size_change_functions;
|
|
412
|
445 Lisp_Object Qwindow_scroll_functions, Vwindow_scroll_functions;
|
|
0
|
446 Lisp_Object Qredisplay_end_trigger_functions, Vredisplay_end_trigger_functions;
|
|
|
447
|
|
|
448 #define INHIBIT_REDISPLAY_HOOKS /* #### Until we've thought about
|
|
|
449 this more. */
|
|
|
450 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
451 /* #### Chuck says: I think this needs more thought.
|
|
|
452 Think about this for 19.14. */
|
|
|
453 Lisp_Object Vpre_redisplay_hook, Vpost_redisplay_hook;
|
|
|
454 Lisp_Object Qpre_redisplay_hook, Qpost_redisplay_hook;
|
|
183
|
455 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
456
|
|
412
|
457 int last_display_warning_tick, display_warning_tick;
|
|
0
|
458 Lisp_Object Qdisplay_warning_buffer;
|
|
|
459 int inhibit_warning_display;
|
|
|
460
|
|
|
461 Lisp_Object Vleft_margin_width, Vright_margin_width;
|
|
|
462 Lisp_Object Vminimum_line_ascent, Vminimum_line_descent;
|
|
|
463 Lisp_Object Vuse_left_overflow, Vuse_right_overflow;
|
|
|
464 Lisp_Object Vtext_cursor_visible_p;
|
|
|
465
|
|
72
|
466 int column_number_start_at_one;
|
|
0
|
467
|
|
|
468 /***************************************************************************/
|
|
|
469 /* */
|
|
|
470 /* low-level interfaces onto device routines */
|
|
|
471 /* */
|
|
|
472 /***************************************************************************/
|
|
|
473
|
|
|
474 static int
|
|
|
475 redisplay_text_width_emchar_string (struct window *w, int findex,
|
|
|
476 Emchar *str, Charcount len)
|
|
|
477 {
|
|
|
478 unsigned char charsets[NUM_LEADING_BYTES];
|
|
272
|
479 Lisp_Object window;
|
|
0
|
480
|
|
|
481 find_charsets_in_emchar_string (charsets, str, len);
|
|
|
482 XSETWINDOW (window, w);
|
|
|
483 ensure_face_cachel_complete (WINDOW_FACE_CACHEL (w, findex), window,
|
|
|
484 charsets);
|
|
|
485 return DEVMETH (XDEVICE (FRAME_DEVICE (XFRAME (WINDOW_FRAME (w)))),
|
|
251
|
486 text_width, (XFRAME (WINDOW_FRAME (w)),
|
|
|
487 WINDOW_FACE_CACHEL (w, findex), str, len));
|
|
0
|
488 }
|
|
|
489
|
|
185
|
490 static Emchar_dynarr *rtw_emchar_dynarr;
|
|
0
|
491
|
|
|
492 int
|
|
|
493 redisplay_text_width_string (struct window *w, int findex,
|
|
|
494 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
495 Bytecount offset, Bytecount len)
|
|
|
496 {
|
|
|
497 if (!rtw_emchar_dynarr)
|
|
|
498 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
499 Dynarr_reset (rtw_emchar_dynarr);
|
|
183
|
500
|
|
0
|
501 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
502 if (STRINGP (reloc))
|
|
16
|
503 nonreloc = XSTRING_DATA (reloc);
|
|
0
|
504 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
505 return redisplay_text_width_emchar_string
|
|
|
506 (w, findex, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
|
507 Dynarr_length (rtw_emchar_dynarr));
|
|
|
508 }
|
|
|
509
|
|
|
510 int
|
|
|
511 redisplay_frame_text_width_string (struct frame *f, Lisp_Object face,
|
|
|
512 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
513 Bytecount offset, Bytecount len)
|
|
|
514 {
|
|
|
515 unsigned char charsets[NUM_LEADING_BYTES];
|
|
272
|
516 Lisp_Object frame;
|
|
0
|
517 struct face_cachel cachel;
|
|
|
518
|
|
|
519 if (!rtw_emchar_dynarr)
|
|
|
520 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
521 Dynarr_reset (rtw_emchar_dynarr);
|
|
|
522
|
|
|
523 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
524 if (STRINGP (reloc))
|
|
16
|
525 nonreloc = XSTRING_DATA (reloc);
|
|
0
|
526 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
527 find_charsets_in_bufbyte_string (charsets, nonreloc, len);
|
|
|
528 reset_face_cachel (&cachel);
|
|
|
529 cachel.face = face;
|
|
|
530 XSETFRAME (frame, f);
|
|
|
531 ensure_face_cachel_complete (&cachel, frame, charsets);
|
|
|
532 return DEVMETH (XDEVICE (FRAME_DEVICE (f)),
|
|
251
|
533 text_width, (f, &cachel, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
0
|
534 Dynarr_length (rtw_emchar_dynarr)));
|
|
|
535 }
|
|
|
536
|
|
|
537 /* Return the display block from DL of the given TYPE. A display line
|
|
|
538 can have only one display block of each possible type. If DL does
|
|
|
539 not have a block of type TYPE, one will be created and added to DL. */
|
|
|
540
|
|
|
541 struct display_block *
|
|
|
542 get_display_block_from_line (struct display_line *dl, enum display_type type)
|
|
|
543 {
|
|
|
544 int elt;
|
|
|
545 struct display_block db;
|
|
|
546
|
|
|
547 /* Check if this display line already has a block of the desired type and
|
|
|
548 if so, return it. */
|
|
|
549 if (dl->display_blocks)
|
|
|
550 {
|
|
|
551 for (elt = 0; elt < Dynarr_length (dl->display_blocks); elt++)
|
|
|
552 {
|
|
|
553 if (Dynarr_at (dl->display_blocks, elt).type == type)
|
|
173
|
554 return Dynarr_atp (dl->display_blocks, elt);
|
|
0
|
555 }
|
|
|
556
|
|
|
557 /* There isn't an active block of the desired type, but there
|
|
|
558 might still be allocated blocks we need to reuse. */
|
|
|
559 if (elt < Dynarr_largest (dl->display_blocks))
|
|
|
560 {
|
|
|
561 struct display_block *dbp = Dynarr_atp (dl->display_blocks, elt);
|
|
|
562
|
|
|
563 /* 'add' the block to the list */
|
|
|
564 Dynarr_increment (dl->display_blocks);
|
|
|
565
|
|
|
566 /* initialize and return */
|
|
|
567 dbp->type = type;
|
|
|
568 return dbp;
|
|
|
569 }
|
|
|
570 }
|
|
|
571 else
|
|
|
572 {
|
|
|
573 /* This line doesn't have any display blocks, so initialize the display
|
|
|
574 bock array. */
|
|
185
|
575 dl->display_blocks = Dynarr_new (display_block);
|
|
0
|
576 }
|
|
|
577
|
|
|
578 /* The line doesn't have a block of the desired type so go ahead and create
|
|
|
579 one and add it to the line. */
|
|
272
|
580 xzero (db);
|
|
0
|
581 db.type = type;
|
|
185
|
582 db.runes = Dynarr_new (rune);
|
|
0
|
583 Dynarr_add (dl->display_blocks, db);
|
|
|
584
|
|
|
585 /* Return the newly added display block. */
|
|
|
586 elt = Dynarr_length (dl->display_blocks) - 1;
|
|
|
587
|
|
|
588 return Dynarr_atp (dl->display_blocks, elt);
|
|
|
589 }
|
|
|
590
|
|
|
591 static int
|
|
|
592 tab_char_width (struct window *w)
|
|
|
593 {
|
|
|
594 struct buffer *b = XBUFFER (w->buffer);
|
|
|
595 int char_tab_width = XINT (b->tab_width);
|
|
|
596
|
|
|
597 if (char_tab_width <= 0 || char_tab_width > 1000) char_tab_width = 8;
|
|
|
598
|
|
|
599 return char_tab_width;
|
|
|
600 }
|
|
|
601
|
|
|
602 static int
|
|
|
603 space_width (struct window *w)
|
|
|
604 {
|
|
|
605 /* While tabs are traditional composed of spaces, for variable-width
|
|
|
606 fonts the space character tends to give too narrow a value. So
|
|
|
607 we use 'n' instead. Except that we don't. We use the default
|
|
|
608 character width for the default face. If this is actually
|
|
|
609 defined by the font then it is probably the best thing to
|
|
|
610 actually use. If it isn't, we have assumed it is 'n' and have
|
|
|
611 already calculated its width. Thus we can avoid a call to
|
|
|
612 XTextWidth on X frames by just querying the default width. */
|
|
|
613 return XFONT_INSTANCE
|
|
|
614 (WINDOW_FACE_CACHEL_FONT (w, DEFAULT_INDEX, Vcharset_ascii))->width;
|
|
|
615 }
|
|
|
616
|
|
|
617 static int
|
|
|
618 tab_pix_width (struct window *w)
|
|
|
619 {
|
|
173
|
620 return space_width (w) * tab_char_width (w);
|
|
0
|
621 }
|
|
|
622
|
|
|
623 /* Given a pixel position in a window, return the pixel location of
|
|
|
624 the next tabstop. Tabs are calculated from the left window edge in
|
|
|
625 terms of spaces displayed in the default face. Formerly the space
|
|
|
626 width was determined using the currently active face. That method
|
|
|
627 leads to tabstops which do not line up. */
|
|
|
628
|
|
|
629 static int
|
|
|
630 next_tab_position (struct window *w, int start_pixpos, int left_pixpos)
|
|
|
631 {
|
|
|
632 int n_pos = left_pixpos;
|
|
|
633 int pix_tab_width = tab_pix_width (w);
|
|
|
634
|
|
|
635 /* Adjust n_pos for any hscrolling which has happened. */
|
|
412
|
636 if (w->hscroll > 1)
|
|
|
637 n_pos -= space_width (w) * (w->hscroll - 1);
|
|
0
|
638
|
|
|
639 while (n_pos <= start_pixpos)
|
|
|
640 n_pos += pix_tab_width;
|
|
|
641
|
|
|
642 return n_pos;
|
|
|
643 }
|
|
|
644
|
|
|
645 /* For the given window, calculate the outside and margin boundaries for a
|
|
|
646 display line. The whitespace boundaries must be calculated by the text
|
|
|
647 layout routines. */
|
|
|
648
|
|
|
649 layout_bounds
|
|
|
650 calculate_display_line_boundaries (struct window *w, int modeline)
|
|
|
651 {
|
|
|
652 layout_bounds bounds;
|
|
|
653
|
|
|
654 /* Set the outermost boundaries which are the boundaries of the
|
|
|
655 window itself minus the gutters (and minus the scrollbars if this
|
|
|
656 is for the modeline). */
|
|
|
657 if (!modeline)
|
|
|
658 {
|
|
|
659 bounds.left_out = WINDOW_TEXT_LEFT (w);
|
|
|
660 bounds.right_out = WINDOW_TEXT_RIGHT (w);
|
|
|
661 }
|
|
|
662 else
|
|
|
663 {
|
|
|
664 bounds.left_out = WINDOW_MODELINE_LEFT (w);
|
|
|
665 bounds.right_out = WINDOW_MODELINE_RIGHT (w);
|
|
|
666 }
|
|
|
667
|
|
|
668 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
669 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
670 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
671
|
|
|
672 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
673 depend on the contents of the line being displayed. */
|
|
|
674 bounds.left_white = bounds.left_in;
|
|
|
675 bounds.right_white = bounds.right_in;
|
|
|
676
|
|
|
677 return bounds;
|
|
|
678 }
|
|
|
679
|
|
|
680 /* Given a display line and a starting position, ensure that the
|
|
|
681 contents of the display line accurately represent the visual
|
|
|
682 representation of the buffer contents starting from the given
|
|
|
683 position when displayed in the given window. The display line ends
|
|
|
684 when the contents of the line reach the right boundary of the given
|
|
|
685 window. */
|
|
|
686
|
|
|
687 static Bufpos
|
|
|
688 generate_display_line (struct window *w, struct display_line *dl, int bounds,
|
|
412
|
689 Bufpos start_pos, int start_col,
|
|
|
690 prop_block_dynarr **prop,
|
|
384
|
691 int type)
|
|
0
|
692 {
|
|
|
693 Bufpos ret_bufpos;
|
|
|
694 int overlay_width;
|
|
|
695 struct buffer *b = XBUFFER (WINDOW_BUFFER (w));
|
|
|
696
|
|
|
697 /* If our caller hasn't already set the boundaries, then do so now. */
|
|
|
698 if (!bounds)
|
|
|
699 dl->bounds = calculate_display_line_boundaries (w, 0);
|
|
|
700
|
|
|
701 /* Reset what this line is using. */
|
|
|
702 if (dl->display_blocks)
|
|
|
703 Dynarr_reset (dl->display_blocks);
|
|
|
704 if (dl->left_glyphs)
|
|
|
705 {
|
|
|
706 Dynarr_free (dl->left_glyphs);
|
|
|
707 dl->left_glyphs = 0;
|
|
|
708 }
|
|
|
709 if (dl->right_glyphs)
|
|
|
710 {
|
|
|
711 Dynarr_free (dl->right_glyphs);
|
|
|
712 dl->right_glyphs = 0;
|
|
|
713 }
|
|
|
714
|
|
|
715 /* We aren't generating a modeline at the moment. */
|
|
|
716 dl->modeline = 0;
|
|
|
717
|
|
|
718 /* Create a display block for the text region of the line. */
|
|
|
719 {
|
|
|
720 /* #### urk urk urk!!! Chuck fix this shit! */
|
|
|
721 Bytind hacked_up_bytind =
|
|
|
722 create_text_block (w, dl, bufpos_to_bytind (b, start_pos),
|
|
412
|
723 start_col, prop, type);
|
|
0
|
724 if (hacked_up_bytind > BI_BUF_ZV (b))
|
|
|
725 ret_bufpos = BUF_ZV (b) + 1;
|
|
|
726 else
|
|
|
727 ret_bufpos = bytind_to_bufpos (b, hacked_up_bytind);
|
|
|
728 }
|
|
|
729 dl->bufpos = start_pos;
|
|
|
730 if (dl->end_bufpos < dl->bufpos)
|
|
|
731 dl->end_bufpos = dl->bufpos;
|
|
|
732
|
|
|
733 if (MARKERP (Voverlay_arrow_position)
|
|
|
734 && EQ (w->buffer, Fmarker_buffer (Voverlay_arrow_position))
|
|
|
735 && start_pos == marker_position (Voverlay_arrow_position)
|
|
|
736 && (STRINGP (Voverlay_arrow_string)
|
|
|
737 || GLYPHP (Voverlay_arrow_string)))
|
|
|
738 {
|
|
|
739 overlay_width = create_overlay_glyph_block (w, dl);
|
|
|
740 }
|
|
|
741 else
|
|
|
742 overlay_width = 0;
|
|
|
743
|
|
|
744 /* If there are left glyphs associated with any character in the
|
|
|
745 text block, then create a display block to handle them. */
|
|
|
746 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
747 create_left_glyph_block (w, dl, overlay_width);
|
|
|
748
|
|
|
749 /* If there are right glyphs associated with any character in the
|
|
|
750 text block, then create a display block to handle them. */
|
|
|
751 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
752 create_right_glyph_block (w, dl);
|
|
|
753
|
|
|
754 /* In the future additional types of display blocks may be generated
|
|
|
755 here. */
|
|
|
756
|
|
|
757 w->last_redisplay_pos = ret_bufpos;
|
|
|
758
|
|
|
759 return ret_bufpos;
|
|
|
760 }
|
|
|
761
|
|
|
762 /* Adds an hscroll glyph to a display block. If this is called, then
|
|
|
763 the block had better be empty.
|
|
|
764
|
|
|
765 Yes, there are multiple places where this function is called but
|
|
|
766 that is the way it has to be. Each calling function has to deal
|
|
|
767 with bi_start_col_enabled a little differently depending on the
|
|
|
768 object being worked with. */
|
|
|
769
|
|
|
770 static prop_block_dynarr *
|
|
|
771 add_hscroll_rune (pos_data *data)
|
|
|
772 {
|
|
|
773 struct glyph_block gb;
|
|
|
774 prop_block_dynarr *retval;
|
|
|
775 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
776 unsigned int old_cursor_type = data->cursor_type;
|
|
|
777 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
778
|
|
|
779 if (data->cursor_type == CURSOR_ON
|
|
|
780 && data->bi_cursor_bufpos >= data->bi_start_col_enabled
|
|
|
781 && data->bi_cursor_bufpos <= data->bi_bufpos)
|
|
|
782 {
|
|
|
783 data->bi_cursor_bufpos = data->bi_start_col_enabled;
|
|
|
784 }
|
|
|
785 else
|
|
|
786 {
|
|
|
787 data->cursor_type = NO_CURSOR;
|
|
|
788 }
|
|
|
789
|
|
|
790 data->bi_endpos = data->bi_bufpos;
|
|
|
791 data->bi_bufpos = data->bi_start_col_enabled;
|
|
|
792
|
|
|
793 gb.extent = Qnil;
|
|
|
794 gb.glyph = Vhscroll_glyph;
|
|
217
|
795 {
|
|
|
796 int oldpixpos = data->pixpos;
|
|
412
|
797 retval = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
217
|
798 GLYPH_CACHEL (XWINDOW (data->window),
|
|
|
799 HSCROLL_GLYPH_INDEX));
|
|
|
800 data->hscroll_glyph_width_adjust =
|
|
|
801 data->pixpos - oldpixpos - space_width (XWINDOW (data->window));
|
|
|
802 }
|
|
0
|
803 data->bi_endpos = 0;
|
|
|
804 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
805 data->cursor_type = old_cursor_type;
|
|
|
806 data->bi_bufpos = bi_old_bufpos;
|
|
|
807
|
|
|
808 data->bi_start_col_enabled = 0;
|
|
|
809 return retval;
|
|
|
810 }
|
|
|
811
|
|
|
812 /* Adds a character rune to a display block. If there is not enough
|
|
|
813 room to fit the rune on the display block (as determined by the
|
|
|
814 MAX_PIXPOS) then it adds nothing and returns ADD_FAILED. */
|
|
|
815
|
|
|
816 static prop_block_dynarr *
|
|
|
817 add_emchar_rune (pos_data *data)
|
|
|
818 {
|
|
|
819 struct rune rb, *crb;
|
|
|
820 int width, local;
|
|
|
821
|
|
|
822 if (data->start_col)
|
|
|
823 {
|
|
|
824 data->start_col--;
|
|
|
825
|
|
|
826 if (data->start_col)
|
|
|
827 return NULL;
|
|
|
828 }
|
|
|
829
|
|
|
830 if (data->bi_start_col_enabled)
|
|
|
831 {
|
|
|
832 return add_hscroll_rune (data);
|
|
|
833 }
|
|
|
834
|
|
|
835 if (data->ch == '\n')
|
|
|
836 {
|
|
|
837 data->font_is_bogus = 0;
|
|
|
838 /* Cheesy end-of-line pseudo-character. */
|
|
|
839 width = data->blank_width;
|
|
|
840 }
|
|
|
841 else
|
|
|
842 {
|
|
|
843 Lisp_Object charset = CHAR_CHARSET (data->ch);
|
|
94
|
844 if (!EQ (charset, data->last_charset) ||
|
|
|
845 data->findex != data->last_findex)
|
|
0
|
846 {
|
|
|
847 /* OK, we need to do things the hard way. */
|
|
|
848 struct window *w = XWINDOW (data->window);
|
|
183
|
849 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, data->findex);
|
|
0
|
850 Lisp_Object font_instance =
|
|
|
851 ensure_face_cachel_contains_charset (cachel, data->window,
|
|
|
852 charset);
|
|
412
|
853 struct Lisp_Font_Instance *fi;
|
|
0
|
854
|
|
|
855 if (EQ (font_instance, Vthe_null_font_instance))
|
|
|
856 {
|
|
|
857 font_instance = FACE_CACHEL_FONT (cachel, Vcharset_ascii);
|
|
|
858 data->font_is_bogus = 1;
|
|
|
859 }
|
|
|
860 else
|
|
|
861 data->font_is_bogus = 0;
|
|
|
862
|
|
|
863 fi = XFONT_INSTANCE (font_instance);
|
|
|
864 if (!fi->proportional_p)
|
|
|
865 /* sweetness and light. */
|
|
|
866 data->last_char_width = fi->width;
|
|
|
867 else
|
|
|
868 data->last_char_width = -1;
|
|
2
|
869 data->new_ascent = max (data->new_ascent, (int) fi->ascent);
|
|
0
|
870 data->new_descent = max (data->new_descent, (int) fi->descent);
|
|
94
|
871 data->last_charset = charset;
|
|
|
872 data->last_findex = data->findex;
|
|
0
|
873 }
|
|
|
874
|
|
|
875 width = data->last_char_width;
|
|
|
876 if (width < 0)
|
|
|
877 {
|
|
|
878 /* bummer. Proportional fonts. */
|
|
|
879 width = redisplay_text_width_emchar_string (XWINDOW (data->window),
|
|
|
880 data->findex,
|
|
|
881 &data->ch, 1);
|
|
|
882 }
|
|
|
883 }
|
|
|
884
|
|
|
885 if (data->max_pixpos != -1 && (data->pixpos + width > data->max_pixpos))
|
|
|
886 {
|
|
|
887 return ADD_FAILED;
|
|
|
888 }
|
|
|
889
|
|
|
890 if (Dynarr_length (data->db->runes) < Dynarr_largest (data->db->runes))
|
|
|
891 {
|
|
|
892 crb = Dynarr_atp (data->db->runes, Dynarr_length (data->db->runes));
|
|
|
893 local = 0;
|
|
|
894 }
|
|
|
895 else
|
|
|
896 {
|
|
|
897 crb = &rb;
|
|
|
898 local = 1;
|
|
|
899 }
|
|
|
900
|
|
|
901 crb->findex = data->findex;
|
|
|
902 crb->xpos = data->pixpos;
|
|
|
903 crb->width = width;
|
|
|
904 if (data->bi_bufpos)
|
|
412
|
905 crb->bufpos =
|
|
|
906 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
907 data->bi_bufpos);
|
|
0
|
908 else if (data->is_modeline)
|
|
|
909 crb->bufpos = data->modeline_charpos;
|
|
|
910 else
|
|
412
|
911 /* fuckme if this shouldn't be an abort. */
|
|
|
912 /* abort (); fuckme harder, this abort gets tripped quite often,
|
|
|
913 in propagation and whatnot. #### fixme */
|
|
0
|
914 crb->bufpos = 0;
|
|
|
915 crb->type = RUNE_CHAR;
|
|
|
916 crb->object.chr.ch = data->font_is_bogus ? '~' : data->ch;
|
|
|
917 crb->endpos = 0;
|
|
|
918
|
|
|
919 if (data->cursor_type == CURSOR_ON)
|
|
|
920 {
|
|
|
921 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
922 {
|
|
|
923 crb->cursor_type = CURSOR_ON;
|
|
|
924 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
925 }
|
|
|
926 else
|
|
|
927 crb->cursor_type = CURSOR_OFF;
|
|
|
928 }
|
|
|
929 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
930 {
|
|
|
931 crb->cursor_type = CURSOR_ON;
|
|
|
932 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
933 data->cursor_type = NO_CURSOR;
|
|
|
934 }
|
|
|
935 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
936 crb->cursor_type = IGNORE_CURSOR;
|
|
|
937 else
|
|
|
938 crb->cursor_type = CURSOR_OFF;
|
|
|
939
|
|
|
940 if (local)
|
|
|
941 Dynarr_add (data->db->runes, *crb);
|
|
|
942 else
|
|
|
943 Dynarr_increment (data->db->runes);
|
|
|
944
|
|
|
945 data->pixpos += width;
|
|
|
946
|
|
|
947 return NULL;
|
|
|
948 }
|
|
|
949
|
|
|
950 /* Given a string C_STRING of length C_LENGTH, call add_emchar_rune
|
|
|
951 for each character in the string. Propagate any left-over data
|
|
|
952 unless NO_PROP is non-zero. */
|
|
|
953
|
|
|
954 static prop_block_dynarr *
|
|
|
955 add_bufbyte_string_runes (pos_data *data, Bufbyte *c_string,
|
|
|
956 Bytecount c_length, int no_prop)
|
|
|
957 {
|
|
|
958 Bufbyte *pos, *end = c_string + c_length;
|
|
|
959 prop_block_dynarr *prop;
|
|
|
960
|
|
|
961 /* #### This function is too simplistic. It needs to do the same
|
|
|
962 sort of character interpretation (display-table lookup,
|
|
|
963 ctl-arrow checking), etc. that create_text_block() does.
|
|
|
964 The functionality to do this in that routine needs to be
|
|
|
965 modularized. */
|
|
183
|
966
|
|
0
|
967 for (pos = c_string; pos < end;)
|
|
|
968 {
|
|
|
969 data->ch = charptr_emchar (pos);
|
|
|
970
|
|
|
971 prop = add_emchar_rune (data);
|
|
|
972
|
|
|
973 if (prop)
|
|
|
974 {
|
|
|
975 if (no_prop)
|
|
|
976 return ADD_FAILED;
|
|
|
977 else
|
|
|
978 {
|
|
|
979 struct prop_block pb;
|
|
|
980 Bytecount len = end - pos;
|
|
185
|
981 prop = Dynarr_new (prop_block);
|
|
0
|
982
|
|
|
983 pb.type = PROP_STRING;
|
|
185
|
984 pb.data.p_string.str = xnew_array (Bufbyte, len);
|
|
0
|
985 strncpy ((char *) pb.data.p_string.str, (char *) pos, len);
|
|
|
986 pb.data.p_string.len = len;
|
|
|
987
|
|
|
988 Dynarr_add (prop, pb);
|
|
|
989 return prop;
|
|
|
990 }
|
|
|
991 }
|
|
|
992 INC_CHARPTR (pos);
|
|
|
993 assert (pos <= end);
|
|
|
994 }
|
|
|
995
|
|
|
996 return NULL;
|
|
|
997 }
|
|
|
998
|
|
|
999 /* Add a single rune of the specified width. The area covered by this
|
|
|
1000 rune will be displayed in the foreground color of the associated
|
|
|
1001 face. */
|
|
|
1002
|
|
|
1003 static prop_block_dynarr *
|
|
|
1004 add_blank_rune (pos_data *data, struct window *w, int char_tab_width)
|
|
|
1005 {
|
|
|
1006 struct rune rb;
|
|
|
1007
|
|
|
1008 /* If data->start_col is not 0 then this call to add_blank_rune must have
|
|
|
1009 been to add it as a tab. */
|
|
|
1010 if (data->start_col)
|
|
|
1011 {
|
|
|
1012 /* assert (w != NULL) */
|
|
|
1013 prop_block_dynarr *retval;
|
|
|
1014
|
|
|
1015 /* If we have still not fully scrolled horizontally, subtract
|
|
|
1016 the width of this tab and return. */
|
|
|
1017 if (char_tab_width < data->start_col)
|
|
|
1018 {
|
|
|
1019 data->start_col -= char_tab_width;
|
|
|
1020 return NULL;
|
|
|
1021 }
|
|
|
1022 else if (char_tab_width == data->start_col)
|
|
|
1023 data->blank_width = 0;
|
|
|
1024 else
|
|
|
1025 {
|
|
|
1026 int spcwid = space_width (w);
|
|
|
1027
|
|
|
1028 if (spcwid >= data->blank_width)
|
|
|
1029 data->blank_width = 0;
|
|
|
1030 else
|
|
|
1031 data->blank_width -= spcwid;
|
|
|
1032 }
|
|
183
|
1033
|
|
0
|
1034 data->start_col = 0;
|
|
|
1035 retval = add_hscroll_rune (data);
|
|
|
1036
|
|
|
1037 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1038 if (retval != NULL || !data->blank_width)
|
|
|
1039 return retval;
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 /* Blank runes are always calculated to fit. */
|
|
|
1043 assert (data->pixpos + data->blank_width <= data->max_pixpos);
|
|
|
1044
|
|
|
1045 rb.findex = data->findex;
|
|
|
1046 rb.xpos = data->pixpos;
|
|
|
1047 rb.width = data->blank_width;
|
|
|
1048 if (data->bi_bufpos)
|
|
243
|
1049 rb.bufpos =
|
|
|
1050 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
1051 data->bi_bufpos);
|
|
0
|
1052 else
|
|
|
1053 /* #### and this is really correct too? */
|
|
|
1054 rb.bufpos = 0;
|
|
|
1055 rb.endpos = 0;
|
|
|
1056 rb.type = RUNE_BLANK;
|
|
|
1057
|
|
|
1058 if (data->cursor_type == CURSOR_ON)
|
|
|
1059 {
|
|
|
1060 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1061 {
|
|
|
1062 rb.cursor_type = CURSOR_ON;
|
|
|
1063 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1064 }
|
|
|
1065 else
|
|
|
1066 rb.cursor_type = CURSOR_OFF;
|
|
|
1067 }
|
|
|
1068 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1069 {
|
|
|
1070 rb.cursor_type = CURSOR_ON;
|
|
|
1071 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1072 data->cursor_type = NO_CURSOR;
|
|
|
1073 }
|
|
|
1074 else
|
|
|
1075 rb.cursor_type = CURSOR_OFF;
|
|
|
1076
|
|
|
1077 Dynarr_add (data->db->runes, rb);
|
|
|
1078 data->pixpos += data->blank_width;
|
|
|
1079
|
|
|
1080 return NULL;
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 /* Add runes representing a character in octal. */
|
|
|
1084
|
|
|
1085 #define ADD_NEXT_OCTAL_RUNE_CHAR do \
|
|
|
1086 { \
|
|
|
1087 if (add_failed || (add_failed = add_emchar_rune (data))) \
|
|
|
1088 { \
|
|
|
1089 struct prop_block pb; \
|
|
|
1090 if (!prop) \
|
|
185
|
1091 prop = Dynarr_new (prop_block); \
|
|
0
|
1092 \
|
|
|
1093 pb.type = PROP_CHAR; \
|
|
|
1094 pb.data.p_char.ch = data->ch; \
|
|
|
1095 pb.data.p_char.cursor_type = data->cursor_type; \
|
|
|
1096 Dynarr_add (prop, pb); \
|
|
|
1097 } \
|
|
|
1098 } while (0)
|
|
|
1099
|
|
|
1100 static prop_block_dynarr *
|
|
|
1101 add_octal_runes (pos_data *data)
|
|
|
1102 {
|
|
|
1103 prop_block_dynarr *prop, *add_failed;
|
|
|
1104 Emchar orig_char = data->ch;
|
|
|
1105 unsigned int orig_cursor_type = data->cursor_type;
|
|
|
1106
|
|
|
1107 /* Initialize */
|
|
|
1108 prop = NULL;
|
|
|
1109 add_failed = NULL;
|
|
|
1110
|
|
|
1111 if (data->start_col)
|
|
|
1112 data->start_col--;
|
|
|
1113
|
|
|
1114 if (!data->start_col)
|
|
|
1115 {
|
|
|
1116 if (data->bi_start_col_enabled)
|
|
|
1117 {
|
|
|
1118 add_failed = add_hscroll_rune (data);
|
|
|
1119 }
|
|
|
1120 else
|
|
|
1121 {
|
|
|
1122 struct glyph_block gb;
|
|
|
1123 struct window *w = XWINDOW (data->window);
|
|
|
1124
|
|
|
1125 gb.extent = Qnil;
|
|
|
1126 gb.glyph = Voctal_escape_glyph;
|
|
|
1127 add_failed =
|
|
|
1128 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1129 GLYPH_CACHEL (w, OCT_ESC_GLYPH_INDEX));
|
|
|
1130 }
|
|
|
1131 }
|
|
|
1132
|
|
|
1133 /* We only propagate information if the glyph was partially
|
|
|
1134 added. */
|
|
|
1135 if (add_failed)
|
|
|
1136 return add_failed;
|
|
|
1137
|
|
|
1138 data->cursor_type = IGNORE_CURSOR;
|
|
|
1139
|
|
|
1140 if (data->ch >= 0x100)
|
|
|
1141 {
|
|
|
1142 /* If the character is an extended Mule character, it could have
|
|
|
1143 up to 19 bits. For the moment, we treat it as a seven-digit
|
|
|
1144 octal number. This is not that pretty, but whatever. */
|
|
|
1145 data->ch = (7 & (orig_char >> 18)) + '0';
|
|
|
1146 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1147
|
|
|
1148 data->ch = (7 & (orig_char >> 15)) + '0';
|
|
|
1149 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1150
|
|
|
1151 data->ch = (7 & (orig_char >> 12)) + '0';
|
|
|
1152 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1153
|
|
|
1154 data->ch = (7 & (orig_char >> 9)) + '0';
|
|
|
1155 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1156 }
|
|
|
1157
|
|
|
1158 data->ch = (7 & (orig_char >> 6)) + '0';
|
|
|
1159 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1160
|
|
|
1161 data->ch = (7 & (orig_char >> 3)) + '0';
|
|
|
1162 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1163
|
|
|
1164 data->ch = (7 & orig_char) + '0';
|
|
|
1165 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1166
|
|
|
1167 data->cursor_type = orig_cursor_type;
|
|
|
1168 return prop;
|
|
|
1169 }
|
|
|
1170
|
|
|
1171 #undef ADD_NEXT_OCTAL_RUNE_CHAR
|
|
|
1172
|
|
|
1173 /* Add runes representing a control character to a display block. */
|
|
|
1174
|
|
|
1175 static prop_block_dynarr *
|
|
|
1176 add_control_char_runes (pos_data *data, struct buffer *b)
|
|
|
1177 {
|
|
|
1178 if (!NILP (b->ctl_arrow))
|
|
|
1179 {
|
|
|
1180 prop_block_dynarr *prop;
|
|
|
1181 Emchar orig_char = data->ch;
|
|
|
1182 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1183
|
|
|
1184 /* Initialize */
|
|
|
1185 prop = NULL;
|
|
|
1186
|
|
|
1187 if (data->start_col)
|
|
|
1188 data->start_col--;
|
|
|
1189
|
|
|
1190 if (!data->start_col)
|
|
|
1191 {
|
|
|
1192 if (data->bi_start_col_enabled)
|
|
|
1193 {
|
|
|
1194 prop_block_dynarr *retval;
|
|
|
1195
|
|
|
1196 retval = add_hscroll_rune (data);
|
|
|
1197 if (retval)
|
|
|
1198 return retval;
|
|
|
1199 }
|
|
|
1200 else
|
|
|
1201 {
|
|
|
1202 struct glyph_block gb;
|
|
|
1203 struct window *w = XWINDOW (data->window);
|
|
|
1204
|
|
|
1205 gb.extent = Qnil;
|
|
|
1206 gb.glyph = Vcontrol_arrow_glyph;
|
|
|
1207
|
|
|
1208 /* We only propagate information if the glyph was partially
|
|
|
1209 added. */
|
|
|
1210 if (add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1211 GLYPH_CACHEL (w, CONTROL_GLYPH_INDEX)))
|
|
|
1212 return ADD_FAILED;
|
|
|
1213 }
|
|
|
1214 }
|
|
|
1215
|
|
|
1216 if (orig_char == 0177)
|
|
|
1217 data->ch = '?';
|
|
|
1218 else
|
|
|
1219 data->ch = orig_char ^ 0100;
|
|
|
1220 data->cursor_type = IGNORE_CURSOR;
|
|
|
1221
|
|
|
1222 if (add_emchar_rune (data))
|
|
|
1223 {
|
|
|
1224 struct prop_block pb;
|
|
|
1225 if (!prop)
|
|
185
|
1226 prop = Dynarr_new (prop_block);
|
|
0
|
1227
|
|
|
1228 pb.type = PROP_CHAR;
|
|
|
1229 pb.data.p_char.ch = data->ch;
|
|
|
1230 pb.data.p_char.cursor_type = data->cursor_type;
|
|
|
1231 Dynarr_add (prop, pb);
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 data->cursor_type = old_cursor_type;
|
|
|
1235 return prop;
|
|
|
1236 }
|
|
|
1237 else
|
|
|
1238 {
|
|
|
1239 return add_octal_runes (data);
|
|
|
1240 }
|
|
|
1241 }
|
|
|
1242
|
|
|
1243 static prop_block_dynarr *
|
|
384
|
1244 add_disp_table_entry_runes_1 (pos_data *data, Lisp_Object entry)
|
|
0
|
1245 {
|
|
|
1246 prop_block_dynarr *prop = NULL;
|
|
|
1247
|
|
384
|
1248 if (STRINGP (entry))
|
|
0
|
1249 {
|
|
|
1250 prop = add_bufbyte_string_runes (data,
|
|
16
|
1251 XSTRING_DATA (entry),
|
|
|
1252 XSTRING_LENGTH (entry),
|
|
0
|
1253 0);
|
|
|
1254 }
|
|
|
1255 else if (GLYPHP (entry))
|
|
|
1256 {
|
|
|
1257 if (data->start_col)
|
|
|
1258 data->start_col--;
|
|
|
1259
|
|
|
1260 if (!data->start_col && data->bi_start_col_enabled)
|
|
|
1261 {
|
|
|
1262 prop = add_hscroll_rune (data);
|
|
|
1263 }
|
|
|
1264 else
|
|
|
1265 {
|
|
|
1266 struct glyph_block gb;
|
|
|
1267
|
|
|
1268 gb.glyph = entry;
|
|
|
1269 gb.extent = Qnil;
|
|
|
1270 prop = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
1271 }
|
|
|
1272 }
|
|
|
1273 else if (CHAR_OR_CHAR_INTP (entry))
|
|
|
1274 {
|
|
|
1275 data->ch = XCHAR_OR_CHAR_INT (entry);
|
|
|
1276 prop = add_emchar_rune (data);
|
|
|
1277 }
|
|
384
|
1278 else if (CONSP (entry))
|
|
|
1279 {
|
|
|
1280 if (EQ (XCAR (entry), Qformat)
|
|
|
1281 && CONSP (XCDR (entry))
|
|
|
1282 && STRINGP (XCAR (XCDR (entry))))
|
|
|
1283 {
|
|
|
1284 Lisp_Object format = XCAR (XCDR (entry));
|
|
|
1285 Bytind len = XSTRING_LENGTH (format);
|
|
|
1286 Bufbyte *src = XSTRING_DATA (format), *end = src + len;
|
|
|
1287 Bufbyte *result = alloca_array (Bufbyte, len);
|
|
|
1288 Bufbyte *dst = result;
|
|
|
1289
|
|
|
1290 while (src < end)
|
|
|
1291 {
|
|
|
1292 Emchar c = charptr_emchar (src);
|
|
|
1293 INC_CHARPTR (src);
|
|
|
1294 if (c != '%' || src == end)
|
|
|
1295 dst += set_charptr_emchar (dst, c);
|
|
|
1296 else
|
|
|
1297 {
|
|
|
1298 c = charptr_emchar (src);
|
|
|
1299 INC_CHARPTR (src);
|
|
|
1300 switch (c)
|
|
|
1301 {
|
|
|
1302 /*case 'x':
|
|
|
1303 dst += long_to_string_base ((char *)dst, data->ch, 16);
|
|
|
1304 break;*/
|
|
|
1305 case '%':
|
|
|
1306 dst += set_charptr_emchar (dst, '%');
|
|
|
1307 break;
|
|
|
1308 }
|
|
|
1309 }
|
|
|
1310 }
|
|
|
1311 prop = add_bufbyte_string_runes (data, result, dst - result, 0);
|
|
|
1312 }
|
|
|
1313 }
|
|
0
|
1314
|
|
|
1315 /* Else blow it off because someone added a bad entry and we don't
|
|
384
|
1316 have any safe way of signaling an error. */
|
|
|
1317 return prop;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 /* Given a display table entry, call the appropriate functions to
|
|
|
1321 display each element of the entry. */
|
|
|
1322
|
|
|
1323 static prop_block_dynarr *
|
|
|
1324 add_disp_table_entry_runes (pos_data *data, Lisp_Object entry)
|
|
|
1325 {
|
|
|
1326 prop_block_dynarr *prop = NULL;
|
|
|
1327 if (VECTORP (entry))
|
|
|
1328 {
|
|
412
|
1329 struct Lisp_Vector *de = XVECTOR (entry);
|
|
384
|
1330 EMACS_INT len = vector_length (de);
|
|
|
1331 int elt;
|
|
|
1332
|
|
|
1333 for (elt = 0; elt < len; elt++)
|
|
|
1334 {
|
|
|
1335 if (NILP (vector_data (de)[elt]))
|
|
|
1336 continue;
|
|
|
1337 else
|
|
|
1338 prop = add_disp_table_entry_runes_1 (data, vector_data (de)[elt]);
|
|
|
1339 /* Else blow it off because someone added a bad entry and we
|
|
|
1340 don't have any safe way of signaling an error. Hey, this
|
|
|
1341 comment sounds familiar. */
|
|
|
1342
|
|
|
1343 /* #### Still need to add any remaining elements to the
|
|
|
1344 propagation information. */
|
|
|
1345 if (prop)
|
|
|
1346 return prop;
|
|
|
1347 }
|
|
|
1348 }
|
|
|
1349 else
|
|
|
1350 prop = add_disp_table_entry_runes_1 (data, entry);
|
|
0
|
1351 return prop;
|
|
|
1352 }
|
|
|
1353
|
|
|
1354 /* Add runes which were propagated from the previous line. */
|
|
|
1355
|
|
|
1356 static prop_block_dynarr *
|
|
|
1357 add_propagation_runes (prop_block_dynarr **prop, pos_data *data)
|
|
|
1358 {
|
|
|
1359 /* #### Remember to handle start_col parameter of data when the rest of
|
|
|
1360 this is finished. */
|
|
|
1361 /* #### Chuck -- I've redone this function a bit. It looked like the
|
|
|
1362 case of not all the propagation blocks being added was not handled
|
|
|
1363 well. */
|
|
|
1364 /* #### Chuck -- I also think the double indirection of PROP is kind
|
|
|
1365 of bogus. A cleaner solution is just to check for
|
|
|
1366 Dynarr_length (prop) > 0. */
|
|
|
1367 /* #### This function also doesn't even pay attention to ADD_FAILED!
|
|
|
1368 This is seriously fucked! Seven ####'s in 130 lines -- is that a
|
|
|
1369 record? */
|
|
|
1370 int elt;
|
|
|
1371 prop_block_dynarr *add_failed;
|
|
|
1372 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
1373 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1374
|
|
|
1375 for (elt = 0; elt < Dynarr_length (*prop); elt++)
|
|
|
1376 {
|
|
|
1377 struct prop_block *pb = Dynarr_atp (*prop, elt);
|
|
|
1378
|
|
|
1379 switch (pb->type)
|
|
|
1380 {
|
|
|
1381 case PROP_CHAR:
|
|
|
1382 data->ch = pb->data.p_char.ch;
|
|
|
1383 data->bi_cursor_bufpos = pb->data.p_char.bi_cursor_bufpos;
|
|
|
1384 data->cursor_type = pb->data.p_char.cursor_type;
|
|
|
1385 add_failed = add_emchar_rune (data);
|
|
|
1386
|
|
|
1387 if (add_failed)
|
|
|
1388 goto oops_no_more_space;
|
|
|
1389 break;
|
|
|
1390 case PROP_STRING:
|
|
|
1391 if (pb->data.p_string.str)
|
|
|
1392 xfree (pb->data.p_string.str);
|
|
|
1393 /* #### bogus bogus -- this doesn't do anything!
|
|
|
1394 Should probably call add_bufbyte_string_runes(),
|
|
|
1395 once that function is fixed. */
|
|
|
1396 break;
|
|
|
1397 case PROP_MINIBUF_PROMPT:
|
|
|
1398 {
|
|
|
1399 face_index old_findex = data->findex;
|
|
|
1400 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
1401
|
|
|
1402 data->findex = DEFAULT_INDEX;
|
|
|
1403 data->bi_bufpos = 0;
|
|
|
1404 data->cursor_type = NO_CURSOR;
|
|
|
1405
|
|
|
1406 while (pb->data.p_string.len > 0)
|
|
|
1407 {
|
|
|
1408 data->ch = charptr_emchar (pb->data.p_string.str);
|
|
|
1409 add_failed = add_emchar_rune (data);
|
|
|
1410
|
|
|
1411 if (add_failed)
|
|
|
1412 {
|
|
|
1413 data->findex = old_findex;
|
|
|
1414 data->bi_bufpos = bi_old_bufpos;
|
|
|
1415 goto oops_no_more_space;
|
|
|
1416 }
|
|
|
1417 else
|
|
|
1418 {
|
|
|
1419 /* Complicated equivalent of ptr++, len-- */
|
|
|
1420 Bufbyte *oldpos = pb->data.p_string.str;
|
|
|
1421 INC_CHARPTR (pb->data.p_string.str);
|
|
|
1422 pb->data.p_string.len -= pb->data.p_string.str - oldpos;
|
|
|
1423 }
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 data->findex = old_findex;
|
|
|
1427 /* ##### FIXME FIXME FIXME -- Upon successful return from
|
|
|
1428 this function, data->bi_bufpos is automatically incremented.
|
|
|
1429 However, we don't want that to happen if we were adding
|
|
|
1430 the minibuffer prompt. */
|
|
|
1431 {
|
|
|
1432 struct buffer *buf =
|
|
|
1433 XBUFFER (WINDOW_BUFFER (XWINDOW (data->window)));
|
|
|
1434 /* #### Chuck fix this shit or I'm gonna scream! */
|
|
|
1435 if (bi_old_bufpos > BI_BUF_BEGV (buf))
|
|
|
1436 data->bi_bufpos = prev_bytind (buf, bi_old_bufpos);
|
|
|
1437 else
|
|
|
1438 /* #### is this correct? Does anyone know?
|
|
|
1439 Does anyone care? Is this a cheesy hack or what? */
|
|
|
1440 data->bi_bufpos = BI_BUF_BEGV (buf) - 1;
|
|
|
1441 }
|
|
|
1442 }
|
|
|
1443 break;
|
|
|
1444 case PROP_BLANK:
|
|
|
1445 {
|
|
|
1446 /* #### I think it's unnecessary and misleading to preserve
|
|
|
1447 the blank_width, as it implies that the value carries
|
|
|
1448 over from one rune to the next, which is wrong. */
|
|
|
1449 int old_width = data->blank_width;
|
|
|
1450 face_index old_findex = data->findex;
|
|
|
1451
|
|
|
1452 data->findex = pb->data.p_blank.findex;
|
|
|
1453 data->blank_width = pb->data.p_blank.width;
|
|
|
1454 data->bi_cursor_bufpos = 0;
|
|
|
1455 data->cursor_type = IGNORE_CURSOR;
|
|
|
1456
|
|
|
1457 if (data->pixpos + data->blank_width > data->max_pixpos)
|
|
|
1458 data->blank_width = data->max_pixpos - data->pixpos;
|
|
|
1459
|
|
|
1460 /* We pass a bogus value of char_tab_width. It shouldn't
|
|
|
1461 matter because unless something is really screwed up
|
|
|
1462 this call won't cause that arg to be used. */
|
|
|
1463 add_failed = add_blank_rune (data, XWINDOW (data->window), 0);
|
|
|
1464
|
|
|
1465 /* This can happen in the case where we have a tab which
|
|
|
1466 is wider than the window. */
|
|
|
1467 if (data->blank_width != pb->data.p_blank.width)
|
|
|
1468 {
|
|
|
1469 pb->data.p_blank.width -= data->blank_width;
|
|
|
1470 add_failed = ADD_FAILED;
|
|
|
1471 }
|
|
|
1472
|
|
|
1473 data->findex = old_findex;
|
|
|
1474 data->blank_width = old_width;
|
|
|
1475
|
|
|
1476 if (add_failed)
|
|
|
1477 goto oops_no_more_space;
|
|
|
1478 }
|
|
|
1479 break;
|
|
|
1480 default:
|
|
|
1481 abort ();
|
|
|
1482 }
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 oops_no_more_space:
|
|
183
|
1486
|
|
0
|
1487 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
1488 data->cursor_type = old_cursor_type;
|
|
|
1489 if (elt < Dynarr_length (*prop))
|
|
|
1490 {
|
|
|
1491 Dynarr_delete_many (*prop, 0, elt);
|
|
|
1492 return *prop;
|
|
|
1493 }
|
|
|
1494 else
|
|
|
1495 {
|
|
|
1496 Dynarr_free (*prop);
|
|
|
1497 return NULL;
|
|
|
1498 }
|
|
|
1499 }
|
|
|
1500
|
|
|
1501 /* Add 'text layout glyphs at position POS_TYPE that are contained to
|
|
|
1502 the display block, but add all other types to the appropriate list
|
|
|
1503 of the display line. They will be added later by different
|
|
|
1504 routines. */
|
|
|
1505
|
|
|
1506 static prop_block_dynarr *
|
|
|
1507 add_glyph_rune (pos_data *data, struct glyph_block *gb, int pos_type,
|
|
|
1508 int allow_cursor, struct glyph_cachel *cachel)
|
|
|
1509 {
|
|
|
1510 struct window *w = XWINDOW (data->window);
|
|
|
1511
|
|
|
1512 /* A nil extent indicates a special glyph (ex. truncator). */
|
|
|
1513 if (NILP (gb->extent)
|
|
|
1514 || (pos_type == BEGIN_GLYPHS &&
|
|
|
1515 extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT)
|
|
|
1516 || (pos_type == END_GLYPHS &&
|
|
412
|
1517 extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT))
|
|
0
|
1518 {
|
|
|
1519 struct rune rb;
|
|
|
1520 int width;
|
|
|
1521 int xoffset = 0;
|
|
|
1522 int ascent, descent;
|
|
|
1523 Lisp_Object baseline;
|
|
|
1524 Lisp_Object face;
|
|
|
1525
|
|
|
1526 if (cachel)
|
|
|
1527 width = cachel->width;
|
|
|
1528 else
|
|
412
|
1529 width = glyph_width (gb->glyph, Qnil, data->findex, data->window);
|
|
0
|
1530
|
|
|
1531 if (!width)
|
|
|
1532 return NULL;
|
|
|
1533
|
|
412
|
1534 if (data->start_col)
|
|
0
|
1535 {
|
|
|
1536 prop_block_dynarr *retval;
|
|
|
1537 int glyph_char_width = width / space_width (w);
|
|
|
1538
|
|
|
1539 /* If we still have not fully scrolled horizontally after
|
|
|
1540 taking into account the width of the glyph, subtract its
|
|
|
1541 width and return. */
|
|
|
1542 if (glyph_char_width < data->start_col)
|
|
|
1543 {
|
|
|
1544 data->start_col -= glyph_char_width;
|
|
|
1545 return NULL;
|
|
|
1546 }
|
|
|
1547 else if (glyph_char_width == data->start_col)
|
|
|
1548 width = 0;
|
|
|
1549 else
|
|
|
1550 {
|
|
|
1551 xoffset = space_width (w) * data->start_col;
|
|
|
1552 width -= xoffset;
|
|
|
1553
|
|
|
1554 /* #### Can this happen? */
|
|
|
1555 if (width < 0)
|
|
|
1556 width = 0;
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 data->start_col = 0;
|
|
|
1560 retval = add_hscroll_rune (data);
|
|
|
1561
|
|
|
1562 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1563 if (retval != NULL || !width)
|
|
|
1564 return retval;
|
|
|
1565 }
|
|
|
1566 else
|
|
|
1567 xoffset = 0;
|
|
|
1568
|
|
|
1569 if (data->pixpos + width > data->max_pixpos)
|
|
|
1570 {
|
|
|
1571 /* If this is the first object we are attempting to add to
|
|
|
1572 the line then we ignore the horizontal_clip threshold.
|
|
|
1573 Otherwise we will loop until the bottom of the window
|
|
|
1574 continually failing to add this glyph because it is wider
|
|
|
1575 than the window. We could alternatively just completely
|
|
|
1576 ignore the glyph and proceed from there but I think that
|
|
|
1577 this is a better solution. */
|
|
|
1578 if (Dynarr_length (data->db->runes)
|
|
|
1579 && data->max_pixpos - data->pixpos < horizontal_clip)
|
|
|
1580 return ADD_FAILED;
|
|
|
1581 else
|
|
|
1582 width = data->max_pixpos - data->pixpos;
|
|
|
1583 }
|
|
|
1584
|
|
|
1585 if (cachel)
|
|
|
1586 {
|
|
|
1587 ascent = cachel->ascent;
|
|
|
1588 descent = cachel->descent;
|
|
|
1589 }
|
|
|
1590 else
|
|
|
1591 {
|
|
412
|
1592 ascent = glyph_ascent (gb->glyph, Qnil, data->findex, data->window);
|
|
|
1593 descent = glyph_descent (gb->glyph, Qnil, data->findex,
|
|
|
1594 data->window);
|
|
0
|
1595 }
|
|
|
1596
|
|
|
1597 baseline = glyph_baseline (gb->glyph, data->window);
|
|
|
1598
|
|
|
1599 if (glyph_contrib_p (gb->glyph, data->window))
|
|
|
1600 {
|
|
|
1601 /* A pixmap that has not had a baseline explicitly set. Its
|
|
|
1602 contribution will be determined later. */
|
|
|
1603 if (NILP (baseline))
|
|
|
1604 {
|
|
|
1605 int height = ascent + descent;
|
|
|
1606 data->max_pixmap_height = max (data->max_pixmap_height, height);
|
|
|
1607 }
|
|
|
1608
|
|
|
1609 /* A string so determine contribution normally. */
|
|
|
1610 else if (EQ (baseline, Qt))
|
|
|
1611 {
|
|
|
1612 data->new_ascent = max (data->new_ascent, ascent);
|
|
|
1613 data->new_descent = max (data->new_descent, descent);
|
|
|
1614 }
|
|
|
1615
|
|
|
1616 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
1617 contribution here. */
|
|
|
1618 else if (INTP (baseline))
|
|
|
1619 {
|
|
|
1620 int height = ascent + descent;
|
|
|
1621 int pix_ascent, pix_descent;
|
|
|
1622
|
|
|
1623 pix_ascent = height * XINT (baseline) / 100;
|
|
|
1624 pix_descent = height - pix_ascent;
|
|
|
1625
|
|
|
1626 data->new_ascent = max (data->new_ascent, pix_ascent);
|
|
|
1627 data->new_descent = max (data->new_descent, pix_descent);
|
|
|
1628 }
|
|
|
1629
|
|
|
1630 /* Otherwise something is screwed up. */
|
|
|
1631 else
|
|
|
1632 abort ();
|
|
|
1633 }
|
|
|
1634
|
|
|
1635 face = glyph_face (gb->glyph, data->window);
|
|
|
1636 if (NILP (face))
|
|
412
|
1637 rb.findex = data->findex;
|
|
0
|
1638 else
|
|
412
|
1639 rb.findex = get_builtin_face_cache_index (w, face);
|
|
|
1640
|
|
0
|
1641 rb.xpos = data->pixpos;
|
|
|
1642 rb.width = width;
|
|
|
1643 rb.bufpos = 0; /* glyphs are never "at" anywhere */
|
|
|
1644 if (data->bi_endpos)
|
|
243
|
1645 /* #### is this necessary at all? */
|
|
|
1646 rb.endpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1647 data->bi_endpos);
|
|
0
|
1648 else
|
|
|
1649 rb.endpos = 0;
|
|
|
1650 rb.type = RUNE_DGLYPH;
|
|
412
|
1651 /* #### Ben sez: this is way bogus if the glyph is a string.
|
|
|
1652 You should not make the output routines have to cope with
|
|
|
1653 this. The string could contain Mule characters, or non-
|
|
|
1654 printable characters, or characters to be passed through
|
|
|
1655 the display table, or non-character objects (when this gets
|
|
|
1656 implemented), etc. Instead, this routine here should parse
|
|
|
1657 the string into a series of runes. */
|
|
0
|
1658 rb.object.dglyph.glyph = gb->glyph;
|
|
|
1659 rb.object.dglyph.extent = gb->extent;
|
|
|
1660 rb.object.dglyph.xoffset = xoffset;
|
|
|
1661
|
|
|
1662 if (allow_cursor)
|
|
|
1663 {
|
|
243
|
1664 rb.bufpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1665 data->bi_bufpos);
|
|
0
|
1666
|
|
|
1667 if (data->cursor_type == CURSOR_ON)
|
|
|
1668 {
|
|
|
1669 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1670 {
|
|
|
1671 rb.cursor_type = CURSOR_ON;
|
|
|
1672 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1673 }
|
|
|
1674 else
|
|
|
1675 rb.cursor_type = CURSOR_OFF;
|
|
|
1676 }
|
|
|
1677 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1678 {
|
|
|
1679 rb.cursor_type = CURSOR_ON;
|
|
|
1680 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1681 data->cursor_type = NO_CURSOR;
|
|
|
1682 }
|
|
|
1683 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
1684 rb.cursor_type = IGNORE_CURSOR;
|
|
|
1685 else if (data->cursor_type == NO_CURSOR)
|
|
|
1686 rb.cursor_type = NO_CURSOR;
|
|
|
1687 else
|
|
|
1688 rb.cursor_type = CURSOR_OFF;
|
|
|
1689 }
|
|
|
1690 else
|
|
|
1691 rb.cursor_type = CURSOR_OFF;
|
|
|
1692
|
|
|
1693 Dynarr_add (data->db->runes, rb);
|
|
|
1694 data->pixpos += width;
|
|
|
1695
|
|
|
1696 return NULL;
|
|
|
1697 }
|
|
|
1698 else
|
|
|
1699 {
|
|
|
1700 if (!NILP (glyph_face (gb->glyph, data->window)))
|
|
|
1701 gb->findex =
|
|
|
1702 get_builtin_face_cache_index (w, glyph_face (gb->glyph,
|
|
|
1703 data->window));
|
|
|
1704 else
|
|
|
1705 gb->findex = data->findex;
|
|
|
1706
|
|
|
1707 if (pos_type == BEGIN_GLYPHS)
|
|
|
1708 {
|
|
|
1709 if (!data->dl->left_glyphs)
|
|
185
|
1710 data->dl->left_glyphs = Dynarr_new (glyph_block);
|
|
0
|
1711 Dynarr_add (data->dl->left_glyphs, *gb);
|
|
|
1712 return NULL;
|
|
|
1713 }
|
|
|
1714 else if (pos_type == END_GLYPHS)
|
|
|
1715 {
|
|
|
1716 if (!data->dl->right_glyphs)
|
|
185
|
1717 data->dl->right_glyphs = Dynarr_new (glyph_block);
|
|
0
|
1718 Dynarr_add (data->dl->right_glyphs, *gb);
|
|
|
1719 return NULL;
|
|
|
1720 }
|
|
|
1721 else
|
|
|
1722 abort (); /* there are no unknown types */
|
|
|
1723 }
|
|
|
1724
|
|
|
1725 return NULL; /* shut up compiler */
|
|
|
1726 }
|
|
|
1727
|
|
|
1728 /* Add all glyphs at position POS_TYPE that are contained in the given
|
|
|
1729 data. */
|
|
|
1730
|
|
|
1731 static prop_block_dynarr *
|
|
|
1732 add_glyph_runes (pos_data *data, int pos_type)
|
|
|
1733 {
|
|
|
1734 /* #### This still needs to handle the start_col parameter. Duh, Chuck,
|
|
|
1735 why didn't you just modify add_glyph_rune in the first place? */
|
|
|
1736 int elt;
|
|
|
1737 glyph_block_dynarr *glyph_arr = (pos_type == BEGIN_GLYPHS
|
|
|
1738 ? data->ef->begin_glyphs
|
|
|
1739 : data->ef->end_glyphs);
|
|
|
1740 prop_block_dynarr *prop;
|
|
|
1741
|
|
|
1742 for (elt = 0; elt < Dynarr_length (glyph_arr); elt++)
|
|
|
1743 {
|
|
|
1744 prop = add_glyph_rune (data, Dynarr_atp (glyph_arr, elt), pos_type, 0,
|
|
|
1745 0);
|
|
|
1746
|
|
|
1747 if (prop)
|
|
|
1748 {
|
|
|
1749 /* #### Add some propagation information. */
|
|
|
1750 return prop;
|
|
|
1751 }
|
|
|
1752 }
|
|
|
1753
|
|
|
1754 Dynarr_reset (glyph_arr);
|
|
|
1755
|
|
|
1756 return NULL;
|
|
|
1757 }
|
|
|
1758
|
|
|
1759 /* Given a position for a buffer in a window, ensure that the given
|
|
|
1760 display line DL accurately represents the text on a line starting
|
|
|
1761 at the given position.
|
|
|
1762
|
|
|
1763 NOTE NOTE NOTE NOTE: This function works with and returns Bytinds.
|
|
|
1764 You must do appropriate conversion. */
|
|
|
1765
|
|
|
1766 static Bytind
|
|
|
1767 create_text_block (struct window *w, struct display_line *dl,
|
|
412
|
1768 Bytind bi_start_pos, int start_col,
|
|
|
1769 prop_block_dynarr **prop,
|
|
384
|
1770 int type)
|
|
0
|
1771 {
|
|
|
1772 struct frame *f = XFRAME (w->frame);
|
|
|
1773 struct buffer *b = XBUFFER (w->buffer);
|
|
|
1774 struct device *d = XDEVICE (f->device);
|
|
|
1775
|
|
|
1776 pos_data data;
|
|
|
1777
|
|
|
1778 /* Don't display anything in the minibuffer if this window is not on
|
|
|
1779 a selected frame. We consider all other windows to be active
|
|
|
1780 minibuffers as it simplifies the coding. */
|
|
|
1781 int active_minibuffer = (!MINI_WINDOW_P (w) ||
|
|
|
1782 (f == device_selected_frame (d)) ||
|
|
|
1783 is_surrogate_for_selected_frame (f));
|
|
|
1784
|
|
|
1785 int truncate_win = window_truncation_on (w);
|
|
|
1786 int end_glyph_width;
|
|
|
1787
|
|
|
1788 /* If the buffer's value of selective_display is an integer then
|
|
|
1789 only lines that start with less than selective_display columns of
|
|
|
1790 space will be displayed. If selective_display is t then all text
|
|
|
1791 after a ^M is invisible. */
|
|
|
1792 int selective = (INTP (b->selective_display)
|
|
|
1793 ? XINT (b->selective_display)
|
|
412
|
1794 : ((!NILP (b->selective_display) ? -1 : 0)));
|
|
0
|
1795
|
|
|
1796 /* The variable ctl-arrow allows the user to specify what characters
|
|
|
1797 can actually be displayed and which octal should be used for.
|
|
|
1798 #### This variable should probably have some rethought done to
|
|
|
1799 it.
|
|
|
1800
|
|
|
1801 #### It would also be really nice if you could specify that
|
|
|
1802 the characters come out in hex instead of in octal. Mule
|
|
|
1803 does that by adding a ctl-hexa variable similar to ctl-arrow,
|
|
|
1804 but that's bogus -- we need a more general solution. I
|
|
|
1805 think you need to extend the concept of display tables
|
|
|
1806 into a more general conversion mechanism. Ideally you
|
|
|
1807 could specify a Lisp function that converts characters,
|
|
|
1808 but this violates the Second Golden Rule and besides would
|
|
384
|
1809 make things way way way way slow.
|
|
|
1810
|
|
|
1811 So instead, we extend the display-table concept, which was
|
|
|
1812 historically limited to 256-byte vectors, to one of the
|
|
|
1813 following:
|
|
|
1814
|
|
|
1815 a) A 256-entry vector, for backward compatibility;
|
|
|
1816 b) char-table, mapping characters to values;
|
|
|
1817 c) range-table, mapping ranges of characters to values;
|
|
|
1818 d) a list of the above.
|
|
|
1819
|
|
|
1820 The (d) option allows you to specify multiple display tables
|
|
|
1821 instead of just one. Each display table can specify conversions
|
|
|
1822 for some characters and leave others unchanged. The way the
|
|
|
1823 character gets displayed is determined by the first display table
|
|
|
1824 with a binding for that character. This way, you could call a
|
|
|
1825 function `enable-hex-display' that adds a hex display-table to
|
|
|
1826 the list of display tables for the current buffer.
|
|
|
1827
|
|
|
1828 #### ...not yet implemented... Also, we extend the concept of
|
|
|
1829 "mapping" to include a printf-like spec. Thus you can make all
|
|
|
1830 extended characters show up as hex with a display table like
|
|
|
1831 this:
|
|
|
1832
|
|
|
1833 #s(range-table data ((256 524288) (format "%x")))
|
|
0
|
1834
|
|
|
1835 Since more than one display table is possible, you have
|
|
384
|
1836 great flexibility in mapping ranges of characters. */
|
|
0
|
1837 Emchar printable_min = (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
|
1838 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
1839 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
1840 ? 255 : 160));
|
|
|
1841
|
|
384
|
1842 Lisp_Object face_dt, window_dt;
|
|
|
1843
|
|
0
|
1844 /* The text display block for this display line. */
|
|
|
1845 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
1846
|
|
|
1847 /* The first time through the main loop we need to force the glyph
|
|
|
1848 data to be updated. */
|
|
|
1849 int initial = 1;
|
|
|
1850
|
|
|
1851 /* Apparently the new extent_fragment_update returns an end position
|
|
|
1852 equal to the position passed in if there are no more runs to be
|
|
|
1853 displayed. */
|
|
|
1854 int no_more_frags = 0;
|
|
|
1855
|
|
|
1856 Lisp_Object synch_minibuffers_value =
|
|
|
1857 symbol_value_in_buffer (Qsynchronize_minibuffers, w->buffer);
|
|
183
|
1858
|
|
0
|
1859 dl->used_prop_data = 0;
|
|
|
1860 dl->num_chars = 0;
|
|
|
1861
|
|
272
|
1862 xzero (data);
|
|
0
|
1863 data.ef = extent_fragment_new (w->buffer, f);
|
|
|
1864
|
|
|
1865 /* These values are used by all of the rune addition routines. We add
|
|
|
1866 them to this structure for ease of passing. */
|
|
|
1867 data.d = d;
|
|
|
1868 XSETWINDOW (data.window, w);
|
|
|
1869 data.db = db;
|
|
|
1870 data.dl = dl;
|
|
|
1871
|
|
|
1872 data.bi_bufpos = bi_start_pos;
|
|
|
1873 data.pixpos = dl->bounds.left_in;
|
|
|
1874 data.last_charset = Qunbound;
|
|
94
|
1875 data.last_findex = DEFAULT_INDEX;
|
|
0
|
1876 data.result_str = Qnil;
|
|
|
1877
|
|
|
1878 /* Set the right boundary adjusting it to take into account any end
|
|
|
1879 glyph. Save the width of the end glyph for later use. */
|
|
|
1880 data.max_pixpos = dl->bounds.right_in;
|
|
|
1881 if (truncate_win)
|
|
|
1882 end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
|
|
|
1883 else
|
|
|
1884 end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
|
|
|
1885 data.max_pixpos -= end_glyph_width;
|
|
|
1886
|
|
265
|
1887 if (cursor_in_echo_area && MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
1888 {
|
|
|
1889 data.bi_cursor_bufpos = BI_BUF_ZV (b);
|
|
|
1890 data.cursor_type = CURSOR_ON;
|
|
0
|
1891 }
|
|
|
1892 else if (MINI_WINDOW_P (w) && !active_minibuffer)
|
|
|
1893 data.cursor_type = NO_CURSOR;
|
|
151
|
1894 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)) &&
|
|
|
1895 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
1896 d == XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d))))&&
|
|
|
1897 f == XFRAME(DEVICE_SELECTED_FRAME(d)))
|
|
0
|
1898 {
|
|
|
1899 data.bi_cursor_bufpos = BI_BUF_PT (b);
|
|
|
1900 data.cursor_type = CURSOR_ON;
|
|
|
1901 }
|
|
|
1902 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)))
|
|
|
1903 {
|
|
|
1904 data.bi_cursor_bufpos = bi_marker_position (w->pointm[type]);
|
|
|
1905 data.cursor_type = CURSOR_ON;
|
|
|
1906 }
|
|
|
1907 else
|
|
|
1908 data.cursor_type = NO_CURSOR;
|
|
|
1909 data.cursor_x = -1;
|
|
|
1910
|
|
|
1911 data.start_col = w->hscroll;
|
|
|
1912 data.bi_start_col_enabled = (w->hscroll ? bi_start_pos : 0);
|
|
217
|
1913 data.hscroll_glyph_width_adjust = 0;
|
|
0
|
1914
|
|
|
1915 /* We regenerate the line from the very beginning. */
|
|
|
1916 Dynarr_reset (db->runes);
|
|
|
1917
|
|
|
1918 /* Why is this less than or equal and not just less than? If the
|
|
|
1919 starting position is already equal to the maximum we can't add
|
|
|
1920 anything else, right? Wrong. We might still have a newline to
|
|
|
1921 add. A newline can use the room allocated for an end glyph since
|
|
|
1922 if we add it we know we aren't going to be adding any end
|
|
|
1923 glyph. */
|
|
|
1924
|
|
|
1925 /* #### Chuck -- I think this condition should be while (1).
|
|
|
1926 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
1927 and the begin-glyph ends exactly at the end of the window, the
|
|
|
1928 end-glyph and text might not be displayed. while (1) ensures
|
|
|
1929 that the loop terminates only when either (a) there is
|
|
|
1930 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
1931
|
|
|
1932 #### Also I think you need to ensure that the operation
|
|
|
1933 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
1934 can't get interrupted in the middle. If you run off the end
|
|
|
1935 of the line during that operation, then you keep accumulating
|
|
|
1936 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
1937 there's a begin glyph at a particular position and attempting
|
|
|
1938 to display that glyph results in window-end being hit and
|
|
|
1939 propagation data being generated, then the character at that
|
|
|
1940 position won't be displayed.
|
|
|
1941
|
|
|
1942 #### See also the comment after the end of this loop, below.
|
|
|
1943 */
|
|
|
1944 while (data.pixpos <= data.max_pixpos
|
|
|
1945 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
1946 {
|
|
|
1947 /* #### This check probably should not be necessary. */
|
|
|
1948 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
1949 {
|
|
|
1950 /* #### urk! More of this lossage! */
|
|
|
1951 data.bi_bufpos--;
|
|
|
1952 goto done;
|
|
|
1953 }
|
|
|
1954
|
|
|
1955 /* If selective display was an integer and we aren't working on
|
|
|
1956 a continuation line then find the next line we are actually
|
|
|
1957 supposed to display. */
|
|
|
1958 if (selective > 0
|
|
|
1959 && (data.bi_bufpos == BI_BUF_BEGV (b)
|
|
|
1960 || BUF_FETCH_CHAR (b, prev_bytind (b, data.bi_bufpos)) == '\n'))
|
|
|
1961 {
|
|
|
1962 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
1963 {
|
|
|
1964 data.bi_bufpos =
|
|
|
1965 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
1966 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
1967 {
|
|
|
1968 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
1969 goto done;
|
|
|
1970 }
|
|
|
1971 }
|
|
|
1972 }
|
|
|
1973
|
|
|
1974 /* Check for face changes. */
|
|
|
1975 if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
|
|
|
1976 {
|
|
|
1977 /* Now compute the face and begin/end-glyph information. */
|
|
|
1978 data.findex =
|
|
|
1979 /* Remember that the extent-fragment routines deal in Bytind's. */
|
|
|
1980 extent_fragment_update (w, data.ef, data.bi_bufpos);
|
|
|
1981
|
|
384
|
1982 get_display_tables (w, data.findex, &face_dt, &window_dt);
|
|
|
1983
|
|
0
|
1984 if (data.bi_bufpos == data.ef->end)
|
|
|
1985 no_more_frags = 1;
|
|
|
1986 }
|
|
|
1987 initial = 0;
|
|
|
1988
|
|
|
1989 /* Determine what is next to be displayed. We first handle any
|
|
|
1990 glyphs returned by glyphs_at_bufpos. If there are no glyphs to
|
|
|
1991 display then we determine what to do based on the character at the
|
|
|
1992 current buffer position. */
|
|
|
1993
|
|
|
1994 /* If the current position is covered by an invisible extent, do
|
|
|
1995 nothing (except maybe add some ellipses).
|
|
|
1996
|
|
|
1997 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
1998 invisible extent should be investigated further. This is
|
|
|
1999 fairly low priority though. */
|
|
|
2000 if (data.ef->invisible)
|
|
|
2001 {
|
|
|
2002 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
2003 really know what I'm doing. */
|
|
|
2004 if (*prop)
|
|
|
2005 {
|
|
|
2006 Dynarr_free (*prop);
|
|
|
2007 *prop = 0;
|
|
|
2008 }
|
|
|
2009
|
|
|
2010 /* The extent fragment code only sets this when we should
|
|
|
2011 really display the ellipses. It makes sure the ellipses
|
|
|
2012 don't get displayed more than once in a row. */
|
|
|
2013 if (data.ef->invisible_ellipses)
|
|
|
2014 {
|
|
|
2015 struct glyph_block gb;
|
|
|
2016
|
|
|
2017 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
2018 data.ef->invisible_ellipses = 0;
|
|
|
2019 gb.extent = Qnil;
|
|
|
2020 gb.glyph = Vinvisible_text_glyph;
|
|
|
2021 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2022 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2023 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
2024 is to display a newline (for compatibility with
|
|
|
2025 selective-display-ellipses)? Maybe that's too
|
|
|
2026 abstruse. */
|
|
|
2027 if (*prop)
|
|
|
2028 goto done;
|
|
|
2029 }
|
|
|
2030
|
|
|
2031 /* If point is in an invisible region we place it on the
|
|
|
2032 next visible character. */
|
|
|
2033 if (data.cursor_type == CURSOR_ON
|
|
|
2034 && data.bi_bufpos == data.bi_cursor_bufpos)
|
|
|
2035 {
|
|
|
2036 data.cursor_type = NEXT_CURSOR;
|
|
|
2037 }
|
|
|
2038
|
|
|
2039 /* #### What if we we're dealing with a display table? */
|
|
|
2040 if (data.start_col)
|
|
|
2041 data.start_col--;
|
|
|
2042
|
|
|
2043 if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2044 goto done;
|
|
|
2045 else
|
|
|
2046 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2047 }
|
|
|
2048
|
|
|
2049 /* If there is propagation data, then it represents the current
|
|
|
2050 buffer position being displayed. Add them and advance the
|
|
|
2051 position counter. This might also add the minibuffer
|
|
|
2052 prompt. */
|
|
|
2053 else if (*prop)
|
|
|
2054 {
|
|
|
2055 dl->used_prop_data = 1;
|
|
|
2056 *prop = add_propagation_runes (prop, &data);
|
|
|
2057
|
|
|
2058 if (*prop)
|
|
|
2059 goto done; /* gee, a really narrow window */
|
|
|
2060 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2061 goto done;
|
|
|
2062 else if (data.bi_bufpos < BI_BUF_BEGV (b))
|
|
|
2063 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
|
2064 data.bi_bufpos = BI_BUF_BEGV (b);
|
|
183
|
2065 else
|
|
0
|
2066 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2067 }
|
|
|
2068
|
|
|
2069 /* If there are end glyphs, add them to the line. These are
|
|
|
2070 the end glyphs for the previous run of text. We add them
|
|
|
2071 here rather than doing them at the end of handling the
|
|
|
2072 previous run so that glyphs at the beginning and end of
|
|
|
2073 a line are handled correctly. */
|
|
|
2074 else if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
2075 {
|
|
|
2076 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
|
2077 if (*prop)
|
|
|
2078 goto done;
|
|
|
2079 }
|
|
|
2080
|
|
|
2081 /* If there are begin glyphs, add them to the line. */
|
|
|
2082 else if (Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
2083 {
|
|
|
2084 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
|
2085 if (*prop)
|
|
|
2086 goto done;
|
|
|
2087 }
|
|
|
2088
|
|
|
2089 /* If at end-of-buffer, we've already processed begin and
|
|
|
2090 end-glyphs at this point and there's no text to process,
|
|
|
2091 so we're done. */
|
|
|
2092 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2093 goto done;
|
|
|
2094
|
|
|
2095 else
|
|
|
2096 {
|
|
384
|
2097 Lisp_Object entry = Qnil;
|
|
0
|
2098 /* Get the character at the current buffer position. */
|
|
|
2099 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
384
|
2100 if (!NILP (face_dt) || !NILP (window_dt))
|
|
|
2101 entry = display_table_entry (data.ch, face_dt, window_dt);
|
|
0
|
2102
|
|
|
2103 /* If there is a display table entry for it, hand it off to
|
|
|
2104 add_disp_table_entry_runes and let it worry about it. */
|
|
384
|
2105 if (!NILP (entry) && !EQ (entry, make_char (data.ch)))
|
|
0
|
2106 {
|
|
384
|
2107 *prop = add_disp_table_entry_runes (&data, entry);
|
|
0
|
2108
|
|
|
2109 if (*prop)
|
|
|
2110 goto done;
|
|
|
2111 }
|
|
|
2112
|
|
|
2113 /* Check if we have hit a newline character. If so, add a marker
|
|
|
2114 to the line and end this loop. */
|
|
|
2115 else if (data.ch == '\n')
|
|
|
2116 {
|
|
|
2117 /* We aren't going to be adding an end glyph so give its
|
|
|
2118 space back in order to make sure that the cursor can
|
|
|
2119 fit. */
|
|
|
2120 data.max_pixpos += end_glyph_width;
|
|
|
2121
|
|
|
2122 if (selective > 0
|
|
|
2123 && (bi_spaces_at_point
|
|
|
2124 (b, next_bytind (b, data.bi_bufpos))
|
|
|
2125 >= selective))
|
|
|
2126 {
|
|
|
2127 if (!NILP (b->selective_display_ellipses))
|
|
|
2128 {
|
|
|
2129 struct glyph_block gb;
|
|
|
2130
|
|
|
2131 gb.extent = Qnil;
|
|
|
2132 gb.glyph = Vinvisible_text_glyph;
|
|
|
2133 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2134 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2135 }
|
|
|
2136 else
|
|
|
2137 {
|
|
|
2138 /* Cheesy, cheesy, cheesy. We mark the end of the
|
|
|
2139 line with a special "character rune" whose width
|
|
|
2140 is the EOL cursor width and whose character is
|
|
|
2141 the non-printing character '\n'. */
|
|
|
2142 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2143 *prop = add_emchar_rune (&data);
|
|
|
2144 }
|
|
|
2145
|
|
|
2146 /* We need to set data.bi_bufpos to the start of the
|
|
|
2147 next visible region in order to make this line
|
|
|
2148 appear to contain all of the invisible area.
|
|
|
2149 Otherwise, the line cache won't work
|
|
|
2150 correctly. */
|
|
|
2151 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2152 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
2153 {
|
|
|
2154 data.bi_bufpos =
|
|
|
2155 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2156 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
2157 {
|
|
|
2158 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
2159 break;
|
|
|
2160 }
|
|
|
2161 }
|
|
|
2162 if (BI_BUF_FETCH_CHAR
|
|
|
2163 (b, prev_bytind (b, data.bi_bufpos)) == '\n')
|
|
|
2164 DEC_BYTIND (b, data.bi_bufpos);
|
|
|
2165 }
|
|
|
2166 else
|
|
|
2167 {
|
|
|
2168 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2169 *prop = add_emchar_rune (&data);
|
|
|
2170 }
|
|
|
2171
|
|
|
2172 goto done;
|
|
|
2173 }
|
|
|
2174
|
|
|
2175 /* If the current character is ^M, and selective display is
|
|
|
2176 enabled, then add the invisible-text-glyph if
|
|
|
2177 selective-display-ellipses is set. In any case, this
|
|
|
2178 line is done. */
|
|
|
2179 else if (data.ch == (('M' & 037)) && selective == -1)
|
|
|
2180 {
|
|
|
2181 Bytind bi_next_bufpos;
|
|
|
2182
|
|
|
2183 /* Find the buffer position at the end of the line. */
|
|
|
2184 bi_next_bufpos =
|
|
|
2185 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2186 if (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_next_bufpos))
|
|
|
2187 == '\n')
|
|
|
2188 DEC_BYTIND (b, bi_next_bufpos);
|
|
|
2189
|
|
|
2190 /* If the cursor is somewhere in the elided text make
|
|
|
2191 sure that the cursor gets drawn appropriately. */
|
|
|
2192 if (data.cursor_type == CURSOR_ON
|
|
|
2193 && (data.bi_cursor_bufpos >= data.bi_bufpos &&
|
|
|
2194 data.bi_cursor_bufpos < bi_next_bufpos))
|
|
|
2195 {
|
|
|
2196 data.cursor_type = NEXT_CURSOR;
|
|
|
2197 }
|
|
|
2198
|
|
|
2199 /* We won't be adding a truncation or continuation glyph
|
|
|
2200 so give up the room allocated for them. */
|
|
|
2201 data.max_pixpos += end_glyph_width;
|
|
|
2202
|
|
|
2203 if (!NILP (b->selective_display_ellipses))
|
|
|
2204 {
|
|
|
2205 /* We don't propagate anything from the invisible
|
|
|
2206 text glyph if it fails to fit. This is
|
|
|
2207 intentional. */
|
|
|
2208 struct glyph_block gb;
|
|
|
2209
|
|
|
2210 gb.extent = Qnil;
|
|
|
2211 gb.glyph = Vinvisible_text_glyph;
|
|
|
2212 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1,
|
|
|
2213 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2214 }
|
|
|
2215
|
|
|
2216 /* Set the buffer position to the end of the line. We
|
|
|
2217 need to do this before potentially adding a newline
|
|
|
2218 so that the cursor flag will get set correctly (if
|
|
|
2219 needed). */
|
|
|
2220 data.bi_bufpos = bi_next_bufpos;
|
|
|
2221
|
|
|
2222 if (NILP (b->selective_display_ellipses)
|
|
|
2223 || data.bi_cursor_bufpos == bi_next_bufpos)
|
|
|
2224 {
|
|
|
2225 /* We have to at least add a newline character so
|
|
|
2226 that the cursor shows up properly. */
|
|
|
2227 data.ch = '\n';
|
|
|
2228 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2229 data.findex = DEFAULT_INDEX;
|
|
|
2230 data.start_col = 0;
|
|
|
2231 data.bi_start_col_enabled = 0;
|
|
|
2232
|
|
|
2233 add_emchar_rune (&data);
|
|
|
2234 }
|
|
|
2235
|
|
|
2236 /* This had better be a newline but doing it this way
|
|
|
2237 we'll see obvious incorrect results if it isn't. No
|
|
|
2238 need to abort here. */
|
|
|
2239 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
|
2240
|
|
|
2241 goto done;
|
|
|
2242 }
|
|
|
2243
|
|
|
2244 /* If the current character is considered to be printable, then
|
|
|
2245 just add it. */
|
|
|
2246 else if (data.ch >= printable_min)
|
|
|
2247 {
|
|
|
2248 *prop = add_emchar_rune (&data);
|
|
|
2249 if (*prop)
|
|
|
2250 goto done;
|
|
|
2251 }
|
|
|
2252
|
|
|
2253 /* If the current character is a tab, determine the next tab
|
|
|
2254 starting position and add a blank rune which extends from the
|
|
|
2255 current pixel position to that starting position. */
|
|
|
2256 else if (data.ch == '\t')
|
|
|
2257 {
|
|
|
2258 int tab_start_pixpos = data.pixpos;
|
|
|
2259 int next_tab_start;
|
|
|
2260 int char_tab_width;
|
|
|
2261 int prop_width = 0;
|
|
|
2262
|
|
|
2263 if (data.start_col > 1)
|
|
412
|
2264 tab_start_pixpos -= (space_width (w) * (data.start_col - 1));
|
|
0
|
2265
|
|
217
|
2266 next_tab_start =
|
|
|
2267 next_tab_position (w, tab_start_pixpos,
|
|
|
2268 dl->bounds.left_in +
|
|
|
2269 data.hscroll_glyph_width_adjust);
|
|
0
|
2270 if (next_tab_start > data.max_pixpos)
|
|
|
2271 {
|
|
|
2272 prop_width = next_tab_start - data.max_pixpos;
|
|
|
2273 next_tab_start = data.max_pixpos;
|
|
|
2274 }
|
|
|
2275 data.blank_width = next_tab_start - data.pixpos;
|
|
|
2276 char_tab_width =
|
|
|
2277 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
2278
|
|
|
2279 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
2280
|
|
|
2281 /* add_blank_rune is only supposed to be called with
|
|
|
2282 sizes guaranteed to fit in the available space. */
|
|
|
2283 assert (!(*prop));
|
|
|
2284
|
|
|
2285 if (prop_width)
|
|
|
2286 {
|
|
|
2287 struct prop_block pb;
|
|
185
|
2288 *prop = Dynarr_new (prop_block);
|
|
0
|
2289
|
|
|
2290 pb.type = PROP_BLANK;
|
|
|
2291 pb.data.p_blank.width = prop_width;
|
|
|
2292 pb.data.p_blank.findex = data.findex;
|
|
|
2293 Dynarr_add (*prop, pb);
|
|
|
2294
|
|
|
2295 goto done;
|
|
|
2296 }
|
|
|
2297 }
|
|
|
2298
|
|
|
2299 /* If character is a control character, pass it off to
|
|
|
2300 add_control_char_runes.
|
|
|
2301
|
|
|
2302 The is_*() routines have undefined results on
|
|
|
2303 arguments outside of the range [-1, 255]. (This
|
|
|
2304 often bites people who carelessly use `char' instead
|
|
|
2305 of `unsigned char'.)
|
|
|
2306 */
|
|
|
2307 else if (data.ch < 0x100 && iscntrl ((Bufbyte) data.ch))
|
|
|
2308 {
|
|
|
2309 *prop = add_control_char_runes (&data, b);
|
|
|
2310
|
|
|
2311 if (*prop)
|
|
|
2312 goto done;
|
|
|
2313 }
|
|
|
2314
|
|
|
2315 /* If the character is above the ASCII range and we have not
|
|
|
2316 already handled it, then print it as an octal number. */
|
|
|
2317 else if (data.ch >= 0200)
|
|
|
2318 {
|
|
|
2319 *prop = add_octal_runes (&data);
|
|
|
2320
|
|
|
2321 if (*prop)
|
|
|
2322 goto done;
|
|
|
2323 }
|
|
|
2324
|
|
|
2325 /* Assume the current character is considered to be printable,
|
|
|
2326 then just add it. */
|
|
|
2327 else
|
|
|
2328 {
|
|
|
2329 *prop = add_emchar_rune (&data);
|
|
|
2330 if (*prop)
|
|
|
2331 goto done;
|
|
|
2332 }
|
|
|
2333
|
|
|
2334 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2335 }
|
|
|
2336 }
|
|
|
2337
|
|
|
2338 done:
|
|
|
2339
|
|
|
2340 /* Determine the starting point of the next line if we did not hit the
|
|
|
2341 end of the buffer. */
|
|
|
2342 if (data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2343 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
2344 {
|
|
|
2345 /* #### This check is not correct. If the line terminated
|
|
|
2346 due to a begin-glyph or end-glyph hitting window-end, then
|
|
|
2347 data.ch will not point to the character at data.bi_bufpos. If
|
|
|
2348 you make the two changes mentioned at the top of this loop,
|
|
|
2349 you should be able to say '(if (*prop))'. That should also
|
|
|
2350 make it possible to eliminate the data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2351 check. */
|
|
|
2352
|
|
|
2353 /* The common case is that the line ended because we hit a newline.
|
|
|
2354 In that case, the next character is just the next buffer
|
|
|
2355 position. */
|
|
|
2356 if (data.ch == '\n')
|
|
|
2357 {
|
|
|
2358 /* If data.start_col_enabled is still true, then the window is
|
|
|
2359 scrolled far enough so that nothing on this line is visible.
|
|
380
|
2360 We need to stick a truncation glyph at the beginning of the
|
|
0
|
2361 line in that case unless the line is completely blank. */
|
|
|
2362 if (data.bi_start_col_enabled)
|
|
|
2363 {
|
|
|
2364 if (data.cursor_type == CURSOR_ON)
|
|
|
2365 {
|
|
|
2366 if (data.bi_cursor_bufpos >= bi_start_pos
|
|
|
2367 && data.bi_cursor_bufpos <= data.bi_bufpos)
|
|
|
2368 data.bi_cursor_bufpos = data.bi_bufpos;
|
|
|
2369 }
|
|
|
2370 data.findex = DEFAULT_INDEX;
|
|
|
2371 data.start_col = 0;
|
|
|
2372 data.bi_start_col_enabled = 0;
|
|
|
2373
|
|
|
2374 if (data.bi_bufpos != bi_start_pos)
|
|
|
2375 {
|
|
|
2376 struct glyph_block gb;
|
|
|
2377
|
|
|
2378 gb.extent = Qnil;
|
|
|
2379 gb.glyph = Vhscroll_glyph;
|
|
|
2380 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2381 GLYPH_CACHEL (w, HSCROLL_GLYPH_INDEX));
|
|
|
2382 }
|
|
|
2383 else
|
|
|
2384 {
|
|
|
2385 /* This duplicates code down below to add a newline to
|
|
|
2386 the end of an otherwise empty line.*/
|
|
|
2387 data.ch = '\n';
|
|
|
2388 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2389
|
|
|
2390 add_emchar_rune (&data);
|
|
|
2391 }
|
|
|
2392 }
|
|
|
2393
|
|
|
2394 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2395 }
|
|
|
2396
|
|
|
2397 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
2398 line. */
|
|
|
2399 else
|
|
|
2400 {
|
|
|
2401 struct glyph_block gb;
|
|
|
2402 struct glyph_cachel *cachel;
|
|
|
2403
|
|
|
2404 /* If the line is to be truncated then we actually have to look
|
|
|
2405 for the next newline. We also add the end-of-line glyph which
|
|
|
2406 we know will fit because we adjusted the right border before
|
|
|
2407 we starting laying out the line. */
|
|
|
2408 data.max_pixpos += end_glyph_width;
|
|
|
2409 data.findex = DEFAULT_INDEX;
|
|
|
2410 gb.extent = Qnil;
|
|
|
2411
|
|
|
2412 if (truncate_win)
|
|
|
2413 {
|
|
|
2414 Bytind bi_pos;
|
|
|
2415
|
|
|
2416 /* Now find the start of the next line. */
|
|
|
2417 bi_pos = bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2418
|
|
|
2419 /* If the cursor is past the truncation line then we
|
|
|
2420 make it appear on the truncation glyph. If we've hit
|
|
|
2421 the end of the buffer then we also make the cursor
|
|
110
|
2422 appear unless eob is immediately preceded by a
|
|
0
|
2423 newline. In that case the cursor should actually
|
|
|
2424 appear on the next line. */
|
|
183
|
2425 if (data.cursor_type == CURSOR_ON
|
|
0
|
2426 && data.bi_cursor_bufpos >= data.bi_bufpos
|
|
|
2427 && (data.bi_cursor_bufpos < bi_pos ||
|
|
|
2428 (bi_pos == BI_BUF_ZV (b)
|
|
|
2429 && (bi_pos == BI_BUF_BEGV (b)
|
|
|
2430 || (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_pos))
|
|
|
2431 != '\n')))))
|
|
|
2432 data.bi_cursor_bufpos = bi_pos;
|
|
|
2433 else
|
|
|
2434 data.cursor_type = NO_CURSOR;
|
|
|
2435
|
|
|
2436 data.bi_bufpos = bi_pos;
|
|
|
2437 gb.glyph = Vtruncation_glyph;
|
|
|
2438 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
2439 }
|
|
|
2440 else
|
|
|
2441 {
|
|
|
2442 /* The cursor can never be on the continuation glyph. */
|
|
|
2443 data.cursor_type = NO_CURSOR;
|
|
|
2444
|
|
|
2445 /* data.bi_bufpos is already at the start of the next line. */
|
|
|
2446
|
|
|
2447 gb.glyph = Vcontinuation_glyph;
|
|
|
2448 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
2449 }
|
|
|
2450
|
|
412
|
2451 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1, cachel);
|
|
0
|
2452
|
|
|
2453 if (truncate_win && data.bi_bufpos == BI_BUF_ZV (b)
|
|
|
2454 && BI_BUF_FETCH_CHAR (b, prev_bytind (b, BI_BUF_ZV (b))) != '\n')
|
|
|
2455 /* #### Damn this losing shit. */
|
|
|
2456 data.bi_bufpos++;
|
|
|
2457 }
|
|
|
2458 }
|
|
|
2459 else if ((active_minibuffer || !NILP (synch_minibuffers_value))
|
|
|
2460 && (!echo_area_active (f) || data.bi_bufpos == BI_BUF_ZV (b)))
|
|
|
2461 {
|
|
|
2462 /* We need to add a marker to the end of the line since there is no
|
|
|
2463 newline character in order for the cursor to get drawn. We label
|
|
|
2464 it as a newline so that it gets handled correctly by the
|
|
|
2465 whitespace routines below. */
|
|
|
2466
|
|
|
2467 data.ch = '\n';
|
|
|
2468 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2469 data.findex = DEFAULT_INDEX;
|
|
|
2470 data.start_col = 0;
|
|
|
2471 data.bi_start_col_enabled = 0;
|
|
|
2472
|
|
|
2473 data.max_pixpos += data.blank_width;
|
|
|
2474 add_emchar_rune (&data);
|
|
|
2475 data.max_pixpos -= data.blank_width;
|
|
183
|
2476
|
|
0
|
2477 /* #### urk! Chuck, this shit is bad news. Going around
|
|
|
2478 manipulating invalid positions is guaranteed to result in
|
|
|
2479 trouble sooner or later. */
|
|
|
2480 data.bi_bufpos = BI_BUF_ZV (b) + 1;
|
|
|
2481 }
|
|
|
2482
|
|
|
2483 /* Calculate left whitespace boundary. */
|
|
|
2484 {
|
|
|
2485 int elt = 0;
|
|
|
2486
|
|
|
2487 /* Whitespace past a newline is considered right whitespace. */
|
|
|
2488 while (elt < Dynarr_length (db->runes))
|
|
|
2489 {
|
|
|
2490 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2491
|
|
|
2492 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
2493 || rb->type == RUNE_BLANK)
|
|
|
2494 {
|
|
|
2495 dl->bounds.left_white += rb->width;
|
|
|
2496 elt++;
|
|
|
2497 }
|
|
|
2498 else
|
|
|
2499 elt = Dynarr_length (db->runes);
|
|
|
2500 }
|
|
|
2501 }
|
|
|
2502
|
|
|
2503 /* Calculate right whitespace boundary. */
|
|
|
2504 {
|
|
|
2505 int elt = Dynarr_length (db->runes) - 1;
|
|
|
2506 int done = 0;
|
|
|
2507
|
|
|
2508 while (!done && elt >= 0)
|
|
|
2509 {
|
|
|
2510 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2511
|
|
|
2512 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
2513 && isspace (rb->object.chr.ch))
|
|
|
2514 && !rb->type == RUNE_BLANK)
|
|
|
2515 {
|
|
|
2516 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
2517 done = 1;
|
|
|
2518 }
|
|
|
2519
|
|
|
2520 elt--;
|
|
|
2521
|
|
|
2522 }
|
|
|
2523
|
|
|
2524 /* The line is blank so everything is considered to be right
|
|
|
2525 whitespace. */
|
|
|
2526 if (!done)
|
|
|
2527 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
2528 }
|
|
|
2529
|
|
|
2530 /* Set the display blocks bounds. */
|
|
|
2531 db->start_pos = dl->bounds.left_in;
|
|
|
2532 if (Dynarr_length (db->runes))
|
|
|
2533 {
|
|
|
2534 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
2535
|
|
|
2536 db->end_pos = rb->xpos + rb->width;
|
|
|
2537 }
|
|
|
2538 else
|
|
|
2539 db->end_pos = dl->bounds.right_white;
|
|
|
2540
|
|
|
2541 /* update line height parameters */
|
|
|
2542 if (!data.new_ascent && !data.new_descent)
|
|
|
2543 {
|
|
|
2544 /* We've got a blank line so initialize these values from the default
|
|
|
2545 face. */
|
|
|
2546 default_face_font_info (data.window, &data.new_ascent,
|
|
|
2547 &data.new_descent, 0, 0, 0);
|
|
|
2548 }
|
|
|
2549
|
|
|
2550 if (data.max_pixmap_height)
|
|
|
2551 {
|
|
|
2552 int height = data.new_ascent + data.new_descent;
|
|
|
2553 int pix_ascent, pix_descent;
|
|
|
2554
|
|
|
2555 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2556 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2557
|
|
|
2558 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2559 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2560 }
|
|
|
2561
|
|
|
2562 dl->ascent = data.new_ascent;
|
|
|
2563 dl->descent = data.new_descent;
|
|
|
2564
|
|
|
2565 {
|
|
|
2566 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
2567
|
|
|
2568 if (dl->ascent < ascent)
|
|
|
2569 dl->ascent = ascent;
|
|
|
2570 }
|
|
|
2571 {
|
|
|
2572 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
2573
|
|
|
2574 if (dl->descent < descent)
|
|
|
2575 dl->descent = descent;
|
|
|
2576 }
|
|
|
2577
|
|
|
2578 dl->cursor_elt = data.cursor_x;
|
|
|
2579 /* #### lossage lossage lossage! Fix this shit! */
|
|
|
2580 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
2581 dl->end_bufpos = BUF_ZV (b);
|
|
|
2582 else
|
|
|
2583 dl->end_bufpos = bytind_to_bufpos (b, data.bi_bufpos) - 1;
|
|
|
2584 if (truncate_win)
|
|
|
2585 data.dl->num_chars = column_at_point (b, dl->end_bufpos, 0);
|
|
|
2586 else
|
|
|
2587 /* This doesn't correctly take into account tabs and control
|
|
|
2588 characters but if the window isn't being truncated then this
|
|
|
2589 value isn't going to end up being used anyhow. */
|
|
|
2590 data.dl->num_chars = dl->end_bufpos - dl->bufpos;
|
|
|
2591
|
|
|
2592 /* #### handle horizontally scrolled line with text none of which
|
|
|
2593 was actually laid out. */
|
|
|
2594
|
|
|
2595 /* #### handle any remainder of overlay arrow */
|
|
|
2596
|
|
|
2597 if (*prop == ADD_FAILED)
|
|
|
2598 *prop = NULL;
|
|
|
2599
|
|
|
2600 if (truncate_win && *prop)
|
|
|
2601 {
|
|
|
2602 Dynarr_free (*prop);
|
|
|
2603 *prop = NULL;
|
|
|
2604 }
|
|
|
2605
|
|
|
2606 extent_fragment_delete (data.ef);
|
|
|
2607
|
|
|
2608 /* #### If we started at EOB, then make sure we return a value past
|
|
|
2609 it so that regenerate_window will exit properly. This is bogus.
|
|
|
2610 The main loop should get fixed so that it isn't necessary to call
|
|
|
2611 this function if we are already at EOB. */
|
|
|
2612
|
|
|
2613 if (data.bi_bufpos == BI_BUF_ZV (b) && bi_start_pos == BI_BUF_ZV (b))
|
|
173
|
2614 return data.bi_bufpos + 1; /* Yuck! */
|
|
0
|
2615 else
|
|
|
2616 return data.bi_bufpos;
|
|
|
2617 }
|
|
|
2618
|
|
|
2619 /* Display the overlay arrow at the beginning of the given line. */
|
|
|
2620
|
|
|
2621 static int
|
|
|
2622 create_overlay_glyph_block (struct window *w, struct display_line *dl)
|
|
|
2623 {
|
|
|
2624 struct frame *f = XFRAME (w->frame);
|
|
|
2625 struct device *d = XDEVICE (f->device);
|
|
|
2626 pos_data data;
|
|
183
|
2627
|
|
0
|
2628 /* If Voverlay_arrow_string isn't valid then just fail silently. */
|
|
|
2629 if (!STRINGP (Voverlay_arrow_string) && !GLYPHP (Voverlay_arrow_string))
|
|
|
2630 return 0;
|
|
|
2631
|
|
272
|
2632 xzero (data);
|
|
0
|
2633 data.ef = NULL;
|
|
|
2634 data.d = d;
|
|
|
2635 XSETWINDOW (data.window, w);
|
|
|
2636 data.db = get_display_block_from_line (dl, OVERWRITE);
|
|
|
2637 data.dl = dl;
|
|
|
2638 data.pixpos = dl->bounds.left_in;
|
|
|
2639 data.max_pixpos = dl->bounds.right_in;
|
|
|
2640 data.cursor_type = NO_CURSOR;
|
|
|
2641 data.cursor_x = -1;
|
|
|
2642 data.findex = DEFAULT_INDEX;
|
|
|
2643 data.last_charset = Qunbound;
|
|
94
|
2644 data.last_findex = DEFAULT_INDEX;
|
|
0
|
2645 data.result_str = Qnil;
|
|
|
2646
|
|
|
2647 Dynarr_reset (data.db->runes);
|
|
|
2648
|
|
|
2649 if (STRINGP (Voverlay_arrow_string))
|
|
|
2650 {
|
|
|
2651 add_bufbyte_string_runes
|
|
|
2652 (&data,
|
|
16
|
2653 XSTRING_DATA (Voverlay_arrow_string),
|
|
|
2654 XSTRING_LENGTH (Voverlay_arrow_string),
|
|
0
|
2655 1);
|
|
|
2656 }
|
|
|
2657 else if (GLYPHP (Voverlay_arrow_string))
|
|
|
2658 {
|
|
|
2659 struct glyph_block gb;
|
|
|
2660
|
|
|
2661 gb.glyph = Voverlay_arrow_string;
|
|
|
2662 gb.extent = Qnil;
|
|
|
2663 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
2664 }
|
|
|
2665
|
|
|
2666 if (data.max_pixmap_height)
|
|
|
2667 {
|
|
|
2668 int height = data.new_ascent + data.new_descent;
|
|
|
2669 int pix_ascent, pix_descent;
|
|
|
2670
|
|
|
2671 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2672 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2673
|
|
|
2674 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2675 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2676 }
|
|
|
2677
|
|
|
2678 dl->ascent = data.new_ascent;
|
|
|
2679 dl->descent = data.new_descent;
|
|
|
2680
|
|
|
2681 data.db->start_pos = dl->bounds.left_in;
|
|
|
2682 data.db->end_pos = data.pixpos;
|
|
|
2683
|
|
173
|
2684 return data.pixpos - dl->bounds.left_in;
|
|
0
|
2685 }
|
|
|
2686
|
|
|
2687 /* Add a type of glyph to a margin display block. */
|
|
|
2688
|
|
|
2689 static int
|
|
|
2690 add_margin_runes (struct display_line *dl, struct display_block *db, int start,
|
|
272
|
2691 int count, enum glyph_layout layout, int side, Lisp_Object window)
|
|
0
|
2692 {
|
|
|
2693 glyph_block_dynarr *gbd = (side == LEFT_GLYPHS
|
|
|
2694 ? dl->left_glyphs
|
|
|
2695 : dl->right_glyphs);
|
|
|
2696 int elt, end;
|
|
412
|
2697 int xpos = start;
|
|
0
|
2698 int reverse;
|
|
|
2699
|
|
272
|
2700 if ((layout == GL_WHITESPACE && side == LEFT_GLYPHS)
|
|
|
2701 || (layout == GL_INSIDE_MARGIN && side == RIGHT_GLYPHS))
|
|
0
|
2702 {
|
|
|
2703 reverse = 1;
|
|
|
2704 elt = Dynarr_length (gbd) - 1;
|
|
|
2705 end = 0;
|
|
|
2706 }
|
|
|
2707 else
|
|
|
2708 {
|
|
|
2709 reverse = 0;
|
|
|
2710 elt = 0;
|
|
|
2711 end = Dynarr_length (gbd);
|
|
|
2712 }
|
|
|
2713
|
|
|
2714 while (count && ((!reverse && elt < end) || (reverse && elt >= end)))
|
|
|
2715 {
|
|
|
2716 struct glyph_block *gb = Dynarr_atp (gbd, elt);
|
|
|
2717
|
|
|
2718 if (NILP (gb->extent))
|
|
|
2719 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2720
|
|
|
2721 if (gb->active &&
|
|
|
2722 ((side == LEFT_GLYPHS &&
|
|
272
|
2723 extent_begin_glyph_layout (XEXTENT (gb->extent)) == layout)
|
|
0
|
2724 || (side == RIGHT_GLYPHS &&
|
|
272
|
2725 extent_end_glyph_layout (XEXTENT (gb->extent)) == layout)))
|
|
0
|
2726 {
|
|
412
|
2727 struct rune rb;
|
|
|
2728
|
|
|
2729 rb.width = gb->width;
|
|
|
2730 rb.findex = gb->findex;
|
|
|
2731 rb.xpos = xpos;
|
|
|
2732 rb.bufpos = -1;
|
|
|
2733 rb.endpos = 0;
|
|
|
2734 rb.type = RUNE_DGLYPH;
|
|
|
2735 rb.object.dglyph.glyph = gb->glyph;
|
|
|
2736 rb.object.dglyph.extent = gb->extent;
|
|
|
2737 rb.object.dglyph.xoffset = 0;
|
|
|
2738 rb.cursor_type = CURSOR_OFF;
|
|
|
2739
|
|
|
2740 Dynarr_add (db->runes, rb);
|
|
|
2741 xpos += rb.width;
|
|
0
|
2742 count--;
|
|
|
2743 gb->active = 0;
|
|
412
|
2744
|
|
|
2745 if (glyph_contrib_p (gb->glyph, window))
|
|
|
2746 {
|
|
|
2747 unsigned short ascent, descent;
|
|
|
2748 Lisp_Object baseline = glyph_baseline (gb->glyph, window);
|
|
|
2749
|
|
|
2750 ascent = glyph_ascent (gb->glyph, Qnil, gb->findex, window);
|
|
|
2751 descent = glyph_descent (gb->glyph, Qnil, gb->findex, window);
|
|
|
2752
|
|
|
2753 /* A pixmap that has not had a baseline explicitly set.
|
|
|
2754 We use the existing ascent / descent ratio of the
|
|
|
2755 line. */
|
|
|
2756 if (NILP (baseline))
|
|
|
2757 {
|
|
|
2758 int gheight = ascent + descent;
|
|
|
2759 int line_height = dl->ascent + dl->descent;
|
|
|
2760 int pix_ascent, pix_descent;
|
|
|
2761
|
|
|
2762 pix_descent = (int) (gheight * dl->descent) / line_height;
|
|
|
2763 pix_ascent = gheight - pix_descent;
|
|
|
2764
|
|
|
2765 dl->ascent = max ((int) dl->ascent, pix_ascent);
|
|
|
2766 dl->descent = max ((int) dl->descent, pix_descent);
|
|
|
2767 }
|
|
|
2768
|
|
|
2769 /* A string so determine contribution normally. */
|
|
|
2770 else if (EQ (baseline, Qt))
|
|
|
2771 {
|
|
|
2772 dl->ascent = max (dl->ascent, ascent);
|
|
|
2773 dl->descent = max (dl->descent, descent);
|
|
|
2774 }
|
|
|
2775
|
|
|
2776 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
2777 contribution here. */
|
|
|
2778 else if (INTP (baseline))
|
|
|
2779 {
|
|
|
2780 int height = ascent + descent;
|
|
|
2781 int pix_ascent, pix_descent;
|
|
|
2782
|
|
|
2783 pix_ascent = height * XINT (baseline) / 100;
|
|
|
2784 pix_descent = height - pix_ascent;
|
|
|
2785
|
|
|
2786 dl->ascent = max ((int) dl->ascent, pix_ascent);
|
|
|
2787 dl->descent = max ((int) dl->descent, pix_descent);
|
|
|
2788 }
|
|
|
2789
|
|
|
2790 /* Otherwise something is screwed up. */
|
|
|
2791 else
|
|
|
2792 abort ();
|
|
|
2793 }
|
|
0
|
2794 }
|
|
|
2795
|
|
|
2796 (reverse ? elt-- : elt++);
|
|
|
2797 }
|
|
|
2798
|
|
412
|
2799 return xpos;
|
|
0
|
2800 }
|
|
|
2801
|
|
|
2802 /* Add a blank to a margin display block. */
|
|
|
2803
|
|
|
2804 static void
|
|
|
2805 add_margin_blank (struct display_line *dl, struct display_block *db,
|
|
|
2806 struct window *w, int xpos, int width, int side)
|
|
|
2807 {
|
|
|
2808 struct rune rb;
|
|
|
2809
|
|
|
2810 rb.findex = (side == LEFT_GLYPHS
|
|
|
2811 ? get_builtin_face_cache_index (w, Vleft_margin_face)
|
|
|
2812 : get_builtin_face_cache_index (w, Vright_margin_face));
|
|
|
2813 rb.xpos = xpos;
|
|
|
2814 rb.width = width;
|
|
|
2815 rb.bufpos = -1;
|
|
|
2816 rb.endpos = 0;
|
|
|
2817 rb.type = RUNE_BLANK;
|
|
|
2818 rb.cursor_type = CURSOR_OFF;
|
|
|
2819
|
|
|
2820 Dynarr_add (db->runes, rb);
|
|
|
2821 }
|
|
|
2822
|
|
|
2823 /* Display glyphs in the left outside margin, left inside margin and
|
|
|
2824 left whitespace area. */
|
|
|
2825
|
|
|
2826 static void
|
|
|
2827 create_left_glyph_block (struct window *w, struct display_line *dl,
|
|
|
2828 int overlay_width)
|
|
|
2829 {
|
|
|
2830 Lisp_Object window;
|
|
|
2831
|
|
|
2832 int use_overflow = (NILP (w->use_left_overflow) ? 0 : 1);
|
|
|
2833 int elt, end_xpos;
|
|
|
2834 int out_end, in_out_start, in_in_end, white_out_start, white_in_start;
|
|
|
2835 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
2836 int left_in_start = dl->bounds.left_in;
|
|
|
2837 int left_in_end = dl->bounds.left_in + overlay_width;
|
|
|
2838
|
|
|
2839 struct display_block *odb, *idb;
|
|
|
2840
|
|
|
2841 XSETWINDOW (window, w);
|
|
|
2842
|
|
|
2843 /* We have to add the glyphs to the line in the order outside,
|
|
|
2844 inside, whitespace. However the precedence dictates that we
|
|
|
2845 determine how many will fit in the reverse order. */
|
|
|
2846
|
|
|
2847 /* Determine how many whitespace glyphs we can display and where
|
|
|
2848 they should start. */
|
|
|
2849 white_in_start = dl->bounds.left_white;
|
|
|
2850 white_out_start = left_in_start;
|
|
|
2851 white_out_cnt = white_in_cnt = 0;
|
|
|
2852 elt = 0;
|
|
|
2853
|
|
|
2854 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2855 {
|
|
|
2856 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2857
|
|
|
2858 if (NILP (gb->extent))
|
|
|
2859 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2860
|
|
|
2861 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
2862 {
|
|
|
2863 int width;
|
|
|
2864
|
|
412
|
2865 width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
2866
|
|
|
2867 if (white_in_start - width >= left_in_end)
|
|
|
2868 {
|
|
|
2869 white_in_cnt++;
|
|
|
2870 white_in_start -= width;
|
|
|
2871 gb->width = width;
|
|
|
2872 gb->active = 1;
|
|
|
2873 }
|
|
|
2874 else if (use_overflow
|
|
|
2875 && (white_out_start - width > dl->bounds.left_out))
|
|
|
2876 {
|
|
|
2877 white_out_cnt++;
|
|
|
2878 white_out_start -= width;
|
|
|
2879 gb->width = width;
|
|
|
2880 gb->active = 1;
|
|
|
2881 }
|
|
|
2882 else
|
|
|
2883 gb->active = 0;
|
|
|
2884 }
|
|
|
2885
|
|
|
2886 elt++;
|
|
|
2887 }
|
|
|
2888
|
|
|
2889 /* Determine how many inside margin glyphs we can display and where
|
|
|
2890 they should start. The inside margin glyphs get whatever space
|
|
|
2891 is left after the whitespace glyphs have been displayed. These
|
|
|
2892 are tricky to calculate since if we decide to use the overflow
|
|
380
|
2893 area we basically have to start over. So for these we build up a
|
|
0
|
2894 list of just the inside margin glyphs and manipulate it to
|
|
|
2895 determine the needed info. */
|
|
|
2896 {
|
|
|
2897 glyph_block_dynarr *ib;
|
|
|
2898 int avail_in, avail_out;
|
|
|
2899 int done = 0;
|
|
|
2900 int marker = 0;
|
|
|
2901 int used_in, used_out;
|
|
|
2902
|
|
|
2903 elt = 0;
|
|
|
2904 used_in = used_out = 0;
|
|
185
|
2905 ib = Dynarr_new (glyph_block);
|
|
0
|
2906 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2907 {
|
|
|
2908 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2909
|
|
|
2910 if (NILP (gb->extent))
|
|
|
2911 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2912
|
|
|
2913 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
2914 GL_INSIDE_MARGIN)
|
|
|
2915 {
|
|
412
|
2916 gb->width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
2917 used_in += gb->width;
|
|
|
2918 Dynarr_add (ib, *gb);
|
|
|
2919 }
|
|
|
2920
|
|
|
2921 elt++;
|
|
|
2922 }
|
|
|
2923
|
|
|
2924 if (white_out_cnt)
|
|
|
2925 avail_in = 0;
|
|
|
2926 else
|
|
|
2927 {
|
|
|
2928 avail_in = white_in_start - left_in_end;
|
|
|
2929 if (avail_in < 0)
|
|
|
2930 avail_in = 0;
|
|
|
2931 }
|
|
|
2932
|
|
|
2933 if (!use_overflow)
|
|
|
2934 avail_out = 0;
|
|
|
2935 else
|
|
|
2936 avail_out = white_out_start - dl->bounds.left_out;
|
|
|
2937
|
|
|
2938 marker = 0;
|
|
|
2939 while (!done && marker < Dynarr_length (ib))
|
|
|
2940 {
|
|
|
2941 int width = Dynarr_atp (ib, marker)->width;
|
|
|
2942
|
|
|
2943 /* If everything now fits in the available inside margin
|
|
|
2944 space, we're done. */
|
|
|
2945 if (used_in <= avail_in)
|
|
|
2946 done = 1;
|
|
|
2947 else
|
|
|
2948 {
|
|
|
2949 /* Otherwise see if we have room to move a glyph to the
|
|
|
2950 outside. */
|
|
|
2951 if (used_out + width <= avail_out)
|
|
|
2952 {
|
|
|
2953 used_out += width;
|
|
|
2954 used_in -= width;
|
|
|
2955 }
|
|
|
2956 else
|
|
|
2957 done = 1;
|
|
|
2958 }
|
|
|
2959
|
|
|
2960 if (!done)
|
|
|
2961 marker++;
|
|
|
2962 }
|
|
|
2963
|
|
|
2964 /* At this point we now know that everything from marker on goes in
|
|
|
2965 the inside margin and everything before it goes in the outside
|
|
|
2966 margin. The stuff going into the outside margin is guaranteed
|
|
|
2967 to fit, but we may have to trim some stuff from the inside. */
|
|
|
2968
|
|
|
2969 in_in_end = left_in_end;
|
|
|
2970 in_out_start = white_out_start;
|
|
|
2971 in_out_cnt = in_in_cnt = 0;
|
|
|
2972
|
|
|
2973 Dynarr_free (ib);
|
|
|
2974 elt = 0;
|
|
|
2975 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2976 {
|
|
|
2977 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2978
|
|
|
2979 if (NILP (gb->extent))
|
|
|
2980 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2981
|
|
|
2982 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
2983 GL_INSIDE_MARGIN)
|
|
|
2984 {
|
|
412
|
2985 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
2986
|
|
|
2987 if (used_out)
|
|
|
2988 {
|
|
|
2989 in_out_cnt++;
|
|
|
2990 in_out_start -= width;
|
|
|
2991 gb->width = width;
|
|
|
2992 gb->active = 1;
|
|
|
2993 used_out -= width;
|
|
|
2994 }
|
|
|
2995 else if (in_in_end + width < white_in_start)
|
|
|
2996 {
|
|
|
2997 in_in_cnt++;
|
|
|
2998 in_in_end += width;
|
|
|
2999 gb->width = width;
|
|
|
3000 gb->active = 1;
|
|
|
3001 }
|
|
|
3002 else
|
|
|
3003 gb->active = 0;
|
|
|
3004 }
|
|
|
3005
|
|
|
3006 elt++;
|
|
|
3007 }
|
|
|
3008 }
|
|
|
3009
|
|
|
3010 /* Determine how many outside margin glyphs we can display. They
|
|
|
3011 always start at the left outside margin and can only use the
|
|
|
3012 outside margin space. */
|
|
|
3013 out_end = dl->bounds.left_out;
|
|
|
3014 out_cnt = 0;
|
|
|
3015 elt = 0;
|
|
|
3016
|
|
|
3017 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3018 {
|
|
|
3019 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3020
|
|
|
3021 if (NILP (gb->extent))
|
|
380
|
3022 abort (); /* these should have been handled in add_glyph_rune */
|
|
0
|
3023
|
|
|
3024 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3025 GL_OUTSIDE_MARGIN)
|
|
|
3026 {
|
|
412
|
3027 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
3028
|
|
|
3029 if (out_end + width <= in_out_start)
|
|
|
3030 {
|
|
|
3031 out_cnt++;
|
|
|
3032 out_end += width;
|
|
|
3033 gb->width = width;
|
|
|
3034 gb->active = 1;
|
|
|
3035 }
|
|
|
3036 else
|
|
|
3037 gb->active = 0;
|
|
|
3038 }
|
|
|
3039
|
|
|
3040 elt++;
|
|
|
3041 }
|
|
|
3042
|
|
183
|
3043 /* Now that we know where everything goes, we add the glyphs as
|
|
|
3044 runes to the appropriate display blocks. */
|
|
0
|
3045 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3046 {
|
|
|
3047 odb = get_display_block_from_line (dl, LEFT_OUTSIDE_MARGIN);
|
|
|
3048 odb->start_pos = dl->bounds.left_out;
|
|
|
3049 /* #### We should stop adding a blank to account for the space
|
|
|
3050 between the end of the glyphs and the margin and instead set
|
|
|
3051 this accordingly. */
|
|
|
3052 odb->end_pos = dl->bounds.left_in;
|
|
|
3053 Dynarr_reset (odb->runes);
|
|
|
3054 }
|
|
|
3055 else
|
|
|
3056 odb = 0;
|
|
|
3057
|
|
|
3058 if (in_in_cnt || white_in_cnt)
|
|
|
3059 {
|
|
|
3060 idb = get_display_block_from_line (dl, LEFT_INSIDE_MARGIN);
|
|
|
3061 idb->start_pos = dl->bounds.left_in;
|
|
|
3062 /* #### See above comment for odb->end_pos */
|
|
|
3063 idb->end_pos = dl->bounds.left_white;
|
|
|
3064 Dynarr_reset (idb->runes);
|
|
|
3065 }
|
|
|
3066 else
|
|
|
3067 idb = 0;
|
|
|
3068
|
|
|
3069 /* First add the outside margin glyphs. */
|
|
|
3070 if (out_cnt)
|
|
|
3071 end_xpos = add_margin_runes (dl, odb, dl->bounds.left_out, out_cnt,
|
|
|
3072 GL_OUTSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3073 else
|
|
|
3074 end_xpos = dl->bounds.left_out;
|
|
|
3075
|
|
|
3076 /* There may be blank space between the outside margin glyphs and
|
|
|
3077 the inside margin glyphs. If so, add a blank. */
|
|
|
3078 if (in_out_cnt && (in_out_start - end_xpos))
|
|
|
3079 {
|
|
|
3080 add_margin_blank (dl, odb, w, end_xpos, in_out_start - end_xpos,
|
|
|
3081 LEFT_GLYPHS);
|
|
|
3082 }
|
|
|
3083
|
|
|
3084 /* Next add the inside margin glyphs which are actually in the
|
|
|
3085 outside margin. */
|
|
|
3086 if (in_out_cnt)
|
|
|
3087 {
|
|
|
3088 end_xpos = add_margin_runes (dl, odb, in_out_start, in_out_cnt,
|
|
|
3089 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3090 }
|
|
|
3091
|
|
|
3092 /* If we didn't add any inside margin glyphs to the outside margin,
|
|
|
3093 but are adding whitespace glyphs, then we need to add a blank
|
|
|
3094 here. */
|
|
|
3095 if (!in_out_cnt && white_out_cnt && (white_out_start - end_xpos))
|
|
|
3096 {
|
|
|
3097 add_margin_blank (dl, odb, w, end_xpos, white_out_start - end_xpos,
|
|
|
3098 LEFT_GLYPHS);
|
|
|
3099 }
|
|
|
3100
|
|
|
3101 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3102 outside margin. */
|
|
|
3103 if (white_out_cnt)
|
|
|
3104 {
|
|
|
3105 end_xpos = add_margin_runes (dl, odb, white_out_start, white_out_cnt,
|
|
|
3106 GL_WHITESPACE, LEFT_GLYPHS, window);
|
|
|
3107 }
|
|
|
3108
|
|
|
3109 /* We take care of clearing between the end of the glyphs and the
|
|
|
3110 start of the inside margin for lines which have glyphs. */
|
|
|
3111 if (odb && (left_in_start - end_xpos))
|
|
|
3112 {
|
|
|
3113 add_margin_blank (dl, odb, w, end_xpos, left_in_start - end_xpos,
|
|
|
3114 LEFT_GLYPHS);
|
|
|
3115 }
|
|
|
3116
|
|
|
3117 /* Next add the inside margin glyphs which are actually in the
|
|
|
3118 inside margin. */
|
|
|
3119 if (in_in_cnt)
|
|
|
3120 {
|
|
|
3121 end_xpos = add_margin_runes (dl, idb, left_in_end, in_in_cnt,
|
|
|
3122 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3123 }
|
|
|
3124 else
|
|
|
3125 end_xpos = left_in_end;
|
|
|
3126
|
|
|
3127 /* Make sure that the area between the end of the inside margin
|
|
|
3128 glyphs and the whitespace glyphs is cleared. */
|
|
|
3129 if (idb && (white_in_start - end_xpos > 0))
|
|
|
3130 {
|
|
|
3131 add_margin_blank (dl, idb, w, end_xpos, white_in_start - end_xpos,
|
|
|
3132 LEFT_GLYPHS);
|
|
|
3133 }
|
|
|
3134
|
|
|
3135 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3136 inside margin. */
|
|
|
3137 if (white_in_cnt)
|
|
|
3138 {
|
|
|
3139 add_margin_runes (dl, idb, white_in_start, white_in_cnt, GL_WHITESPACE,
|
|
|
3140 LEFT_GLYPHS, window);
|
|
|
3141 }
|
|
|
3142
|
|
|
3143 /* Whitespace glyphs always end right next to the text block so
|
|
|
3144 there is nothing we have to make sure is cleared after them. */
|
|
|
3145 }
|
|
|
3146
|
|
|
3147 /* Display glyphs in the right outside margin, right inside margin and
|
|
|
3148 right whitespace area. */
|
|
|
3149
|
|
|
3150 static void
|
|
|
3151 create_right_glyph_block (struct window *w, struct display_line *dl)
|
|
|
3152 {
|
|
|
3153 Lisp_Object window;
|
|
|
3154
|
|
|
3155 int use_overflow = (NILP (w->use_right_overflow) ? 0 : 1);
|
|
|
3156 int elt, end_xpos;
|
|
|
3157 int out_start, in_out_end, in_in_start, white_out_end, white_in_end;
|
|
|
3158 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
3159
|
|
|
3160 struct display_block *odb, *idb;
|
|
|
3161
|
|
|
3162 XSETWINDOW (window, w);
|
|
|
3163
|
|
|
3164 /* We have to add the glyphs to the line in the order outside,
|
|
|
3165 inside, whitespace. However the precedence dictates that we
|
|
|
3166 determine how many will fit in the reverse order. */
|
|
|
3167
|
|
|
3168 /* Determine how many whitespace glyphs we can display and where
|
|
|
3169 they should start. */
|
|
|
3170 white_in_end = dl->bounds.right_white;
|
|
|
3171 white_out_end = dl->bounds.right_in;
|
|
|
3172 white_out_cnt = white_in_cnt = 0;
|
|
|
3173 elt = 0;
|
|
|
3174
|
|
|
3175 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3176 {
|
|
|
3177 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3178
|
|
|
3179 if (NILP (gb->extent))
|
|
|
3180 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3181
|
|
|
3182 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
3183 {
|
|
412
|
3184 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
3185
|
|
|
3186 if (white_in_end + width <= dl->bounds.right_in)
|
|
|
3187 {
|
|
|
3188 white_in_cnt++;
|
|
|
3189 white_in_end += width;
|
|
|
3190 gb->width = width;
|
|
|
3191 gb->active = 1;
|
|
|
3192 }
|
|
|
3193 else if (use_overflow
|
|
|
3194 && (white_out_end + width <= dl->bounds.right_out))
|
|
|
3195 {
|
|
|
3196 white_out_cnt++;
|
|
|
3197 white_out_end += width;
|
|
|
3198 gb->width = width;
|
|
|
3199 gb->active = 1;
|
|
|
3200 }
|
|
|
3201 else
|
|
|
3202 gb->active = 0;
|
|
|
3203 }
|
|
|
3204
|
|
|
3205 elt++;
|
|
|
3206 }
|
|
|
3207
|
|
|
3208 /* Determine how many inside margin glyphs we can display and where
|
|
|
3209 they should start. The inside margin glyphs get whatever space
|
|
|
3210 is left after the whitespace glyphs have been displayed. These
|
|
|
3211 are tricky to calculate since if we decide to use the overflow
|
|
380
|
3212 area we basically have to start over. So for these we build up a
|
|
0
|
3213 list of just the inside margin glyphs and manipulate it to
|
|
|
3214 determine the needed info. */
|
|
|
3215 {
|
|
|
3216 glyph_block_dynarr *ib;
|
|
|
3217 int avail_in, avail_out;
|
|
|
3218 int done = 0;
|
|
|
3219 int marker = 0;
|
|
|
3220 int used_in, used_out;
|
|
|
3221
|
|
|
3222 elt = 0;
|
|
|
3223 used_in = used_out = 0;
|
|
185
|
3224 ib = Dynarr_new (glyph_block);
|
|
0
|
3225 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3226 {
|
|
|
3227 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3228
|
|
|
3229 if (NILP (gb->extent))
|
|
|
3230 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3231
|
|
|
3232 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3233 {
|
|
412
|
3234 gb->width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
3235 used_in += gb->width;
|
|
|
3236 Dynarr_add (ib, *gb);
|
|
|
3237 }
|
|
|
3238
|
|
|
3239 elt++;
|
|
|
3240 }
|
|
|
3241
|
|
|
3242 if (white_out_cnt)
|
|
|
3243 avail_in = 0;
|
|
|
3244 else
|
|
|
3245 avail_in = dl->bounds.right_in - white_in_end;
|
|
|
3246
|
|
|
3247 if (!use_overflow)
|
|
|
3248 avail_out = 0;
|
|
|
3249 else
|
|
|
3250 avail_out = dl->bounds.right_out - white_out_end;
|
|
|
3251
|
|
|
3252 marker = 0;
|
|
|
3253 while (!done && marker < Dynarr_length (ib))
|
|
|
3254 {
|
|
|
3255 int width = Dynarr_atp (ib, marker)->width;
|
|
|
3256
|
|
|
3257 /* If everything now fits in the available inside margin
|
|
|
3258 space, we're done. */
|
|
|
3259 if (used_in <= avail_in)
|
|
|
3260 done = 1;
|
|
|
3261 else
|
|
|
3262 {
|
|
|
3263 /* Otherwise see if we have room to move a glyph to the
|
|
|
3264 outside. */
|
|
|
3265 if (used_out + width <= avail_out)
|
|
|
3266 {
|
|
|
3267 used_out += width;
|
|
|
3268 used_in -= width;
|
|
|
3269 }
|
|
|
3270 else
|
|
|
3271 done = 1;
|
|
|
3272 }
|
|
|
3273
|
|
|
3274 if (!done)
|
|
|
3275 marker++;
|
|
|
3276 }
|
|
|
3277
|
|
|
3278 /* At this point we now know that everything from marker on goes in
|
|
|
3279 the inside margin and everything before it goes in the outside
|
|
|
3280 margin. The stuff going into the outside margin is guaranteed
|
|
|
3281 to fit, but we may have to trim some stuff from the inside. */
|
|
|
3282
|
|
|
3283 in_in_start = dl->bounds.right_in;
|
|
|
3284 in_out_end = dl->bounds.right_in;
|
|
|
3285 in_out_cnt = in_in_cnt = 0;
|
|
|
3286
|
|
|
3287 Dynarr_free (ib);
|
|
|
3288 elt = 0;
|
|
|
3289 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3290 {
|
|
|
3291 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3292
|
|
|
3293 if (NILP (gb->extent))
|
|
|
3294 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3295
|
|
|
3296 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3297 {
|
|
412
|
3298 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
3299
|
|
|
3300 if (used_out)
|
|
|
3301 {
|
|
|
3302 in_out_cnt++;
|
|
|
3303 in_out_end += width;
|
|
|
3304 gb->width = width;
|
|
|
3305 gb->active = 1;
|
|
|
3306 used_out -= width;
|
|
|
3307 }
|
|
|
3308 else if (in_in_start - width >= white_in_end)
|
|
|
3309 {
|
|
|
3310 in_in_cnt++;
|
|
|
3311 in_in_start -= width;
|
|
|
3312 gb->width = width;
|
|
|
3313 gb->active = 1;
|
|
|
3314 }
|
|
|
3315 else
|
|
|
3316 gb->active = 0;
|
|
|
3317 }
|
|
|
3318
|
|
|
3319 elt++;
|
|
|
3320 }
|
|
|
3321 }
|
|
|
3322
|
|
|
3323 /* Determine how many outside margin glyphs we can display. They
|
|
|
3324 always start at the right outside margin and can only use the
|
|
|
3325 outside margin space. */
|
|
|
3326 out_start = dl->bounds.right_out;
|
|
|
3327 out_cnt = 0;
|
|
|
3328 elt = 0;
|
|
|
3329
|
|
|
3330 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3331 {
|
|
|
3332 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3333
|
|
|
3334 if (NILP (gb->extent))
|
|
380
|
3335 abort (); /* these should have been handled in add_glyph_rune */
|
|
0
|
3336
|
|
|
3337 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_OUTSIDE_MARGIN)
|
|
|
3338 {
|
|
412
|
3339 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
0
|
3340
|
|
|
3341 if (out_start - width >= in_out_end)
|
|
|
3342 {
|
|
|
3343 out_cnt++;
|
|
|
3344 out_start -= width;
|
|
|
3345 gb->width = width;
|
|
|
3346 gb->active = 1;
|
|
|
3347 }
|
|
|
3348 else
|
|
|
3349 gb->active = 0;
|
|
|
3350 }
|
|
|
3351
|
|
|
3352 elt++;
|
|
|
3353 }
|
|
|
3354
|
|
|
3355 /* Now that we now where everything goes, we add the glyphs as runes
|
|
|
3356 to the appropriate display blocks. */
|
|
|
3357 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3358 {
|
|
|
3359 odb = get_display_block_from_line (dl, RIGHT_OUTSIDE_MARGIN);
|
|
|
3360 /* #### See comments before odb->start_pos init in
|
|
|
3361 create_left_glyph_block */
|
|
|
3362 odb->start_pos = dl->bounds.right_in;
|
|
|
3363 odb->end_pos = dl->bounds.right_out;
|
|
|
3364 Dynarr_reset (odb->runes);
|
|
|
3365 }
|
|
|
3366 else
|
|
|
3367 odb = 0;
|
|
|
3368
|
|
|
3369 if (in_in_cnt || white_in_cnt)
|
|
|
3370 {
|
|
|
3371 idb = get_display_block_from_line (dl, RIGHT_INSIDE_MARGIN);
|
|
|
3372 idb->start_pos = dl->bounds.right_white;
|
|
|
3373 /* #### See comments before odb->start_pos init in
|
|
|
3374 create_left_glyph_block */
|
|
|
3375 idb->end_pos = dl->bounds.right_in;
|
|
|
3376 Dynarr_reset (idb->runes);
|
|
|
3377 }
|
|
|
3378 else
|
|
|
3379 idb = 0;
|
|
|
3380
|
|
|
3381 /* First add the whitespace margin glyphs which are actually in the
|
|
|
3382 inside margin. */
|
|
|
3383 if (white_in_cnt)
|
|
|
3384 {
|
|
|
3385 end_xpos = add_margin_runes (dl, idb, dl->bounds.right_white,
|
|
|
3386 white_in_cnt, GL_WHITESPACE, RIGHT_GLYPHS,
|
|
|
3387 window);
|
|
|
3388 }
|
|
|
3389 else
|
|
|
3390 end_xpos = dl->bounds.right_white;
|
|
|
3391
|
|
|
3392 /* Make sure that the area between the end of the whitespace glyphs
|
|
|
3393 and the inside margin glyphs is cleared. */
|
|
|
3394 if (in_in_cnt && (in_in_start - end_xpos))
|
|
|
3395 {
|
|
|
3396 add_margin_blank (dl, idb, w, end_xpos, in_in_start - end_xpos,
|
|
|
3397 RIGHT_GLYPHS);
|
|
|
3398 }
|
|
|
3399
|
|
|
3400 /* Next add the inside margin glyphs which are actually in the
|
|
|
3401 inside margin. */
|
|
|
3402 if (in_in_cnt)
|
|
|
3403 {
|
|
|
3404 end_xpos = add_margin_runes (dl, idb, in_in_start, in_in_cnt,
|
|
|
3405 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3406 }
|
|
|
3407
|
|
|
3408 /* If we didn't add any inside margin glyphs then make sure the rest
|
|
|
3409 of the inside margin area gets cleared. */
|
|
|
3410 if (idb && (dl->bounds.right_in - end_xpos))
|
|
|
3411 {
|
|
|
3412 add_margin_blank (dl, idb, w, end_xpos, dl->bounds.right_in - end_xpos,
|
|
|
3413 RIGHT_GLYPHS);
|
|
|
3414 }
|
|
|
3415
|
|
|
3416 /* Next add any whitespace glyphs in the outside margin. */
|
|
|
3417 if (white_out_cnt)
|
|
|
3418 {
|
|
|
3419 end_xpos = add_margin_runes (dl, odb, dl->bounds.right_in, white_out_cnt,
|
|
|
3420 GL_WHITESPACE, RIGHT_GLYPHS, window);
|
|
|
3421 }
|
|
|
3422 else
|
|
|
3423 end_xpos = dl->bounds.right_in;
|
|
|
3424
|
|
|
3425 /* Next add any inside margin glyphs in the outside margin. */
|
|
|
3426 if (in_out_cnt)
|
|
|
3427 {
|
|
|
3428 end_xpos = add_margin_runes (dl, odb, end_xpos, in_out_cnt,
|
|
|
3429 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3430 }
|
|
|
3431
|
|
|
3432 /* There may be space between any whitespace or inside margin glyphs
|
|
|
3433 in the outside margin and the actual outside margin glyphs. */
|
|
|
3434 if (odb && (out_start - end_xpos))
|
|
|
3435 {
|
|
|
3436 add_margin_blank (dl, odb, w, end_xpos, out_start - end_xpos,
|
|
|
3437 RIGHT_GLYPHS);
|
|
|
3438 }
|
|
|
3439
|
|
|
3440 /* Finally, add the outside margin glyphs. */
|
|
|
3441 if (out_cnt)
|
|
|
3442 {
|
|
|
3443 add_margin_runes (dl, odb, out_start, out_cnt, GL_OUTSIDE_MARGIN,
|
|
|
3444 RIGHT_GLYPHS, window);
|
|
|
3445 }
|
|
|
3446 }
|
|
|
3447
|
|
|
3448
|
|
|
3449 /***************************************************************************/
|
|
|
3450 /* */
|
|
|
3451 /* modeline routines */
|
|
|
3452 /* */
|
|
|
3453 /***************************************************************************/
|
|
|
3454
|
|
398
|
3455 /* Ensure that the given display line DL accurately represents the
|
|
|
3456 modeline for the given window. */
|
|
412
|
3457
|
|
398
|
3458 static void
|
|
|
3459 generate_modeline (struct window *w, struct display_line *dl, int type)
|
|
|
3460 {
|
|
|
3461 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3462 struct frame *f = XFRAME (w->frame);
|
|
|
3463 struct device *d = XDEVICE (f->device);
|
|
|
3464
|
|
|
3465 /* Unlike display line and rune pointers, this one can't change underneath
|
|
|
3466 our feet. */
|
|
|
3467 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
3468 int max_pixpos, min_pixpos, ypos_adj;
|
|
|
3469 Lisp_Object font_inst;
|
|
|
3470
|
|
|
3471 /* This will actually determine incorrect inside boundaries for the
|
|
|
3472 modeline since it ignores the margins. However being aware of this fact
|
|
|
3473 we never use those values anywhere so it doesn't matter. */
|
|
|
3474 dl->bounds = calculate_display_line_boundaries (w, 1);
|
|
|
3475
|
|
|
3476 /* We are generating a modeline. */
|
|
|
3477 dl->modeline = 1;
|
|
|
3478 dl->cursor_elt = -1;
|
|
|
3479
|
|
|
3480 /* Reset the runes on the modeline. */
|
|
|
3481 Dynarr_reset (db->runes);
|
|
|
3482
|
|
|
3483 if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
3484 {
|
|
|
3485 struct rune rb;
|
|
|
3486
|
|
|
3487 /* If there is a horizontal scrollbar, don't add anything. */
|
|
|
3488 if (window_scrollbar_height (w))
|
|
|
3489 return;
|
|
|
3490
|
|
|
3491 dl->ascent = DEVMETH (d, divider_height, ());
|
|
|
3492 dl->descent = 0;
|
|
|
3493 /* The modeline is at the bottom of the gutters. */
|
|
|
3494 dl->ypos = WINDOW_BOTTOM (w);
|
|
|
3495
|
|
|
3496 rb.findex = MODELINE_INDEX;
|
|
|
3497 rb.xpos = dl->bounds.left_out;
|
|
|
3498 rb.width = dl->bounds.right_out - dl->bounds.left_out;
|
|
|
3499 rb.bufpos = 0;
|
|
|
3500 rb.endpos = 0;
|
|
|
3501 rb.type = RUNE_HLINE;
|
|
|
3502 rb.object.hline.thickness = 1;
|
|
|
3503 rb.object.hline.yoffset = 0;
|
|
|
3504 rb.cursor_type = NO_CURSOR;
|
|
|
3505
|
|
|
3506 if (!EQ (Qzero, w->modeline_shadow_thickness)
|
|
|
3507 && FRAME_WIN_P (f))
|
|
|
3508 {
|
|
|
3509 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3510
|
|
|
3511 dl->ypos -= shadow_thickness;
|
|
|
3512 rb.xpos += shadow_thickness;
|
|
|
3513 rb.width -= 2 * shadow_thickness;
|
|
|
3514 }
|
|
|
3515
|
|
|
3516 Dynarr_add (db->runes, rb);
|
|
|
3517 return;
|
|
|
3518 }
|
|
|
3519
|
|
|
3520 /* !!#### not right; needs to compute the max height of
|
|
|
3521 all the charsets */
|
|
|
3522 font_inst = WINDOW_FACE_CACHEL_FONT (w, MODELINE_INDEX, Vcharset_ascii);
|
|
|
3523
|
|
|
3524 dl->ascent = XFONT_INSTANCE (font_inst)->ascent;
|
|
|
3525 dl->descent = XFONT_INSTANCE (font_inst)->descent;
|
|
|
3526
|
|
|
3527 min_pixpos = dl->bounds.left_out;
|
|
|
3528 max_pixpos = dl->bounds.right_out;
|
|
|
3529
|
|
|
3530 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
3531 {
|
|
|
3532 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3533
|
|
|
3534 ypos_adj = shadow_thickness;
|
|
|
3535 min_pixpos += shadow_thickness;
|
|
|
3536 max_pixpos -= shadow_thickness;
|
|
|
3537 }
|
|
|
3538 else
|
|
|
3539 ypos_adj = 0;
|
|
|
3540
|
|
|
3541 generate_formatted_string_db (b->modeline_format,
|
|
|
3542 b->generated_modeline_string, w, dl, db,
|
|
|
3543 MODELINE_INDEX, min_pixpos, max_pixpos, type);
|
|
|
3544
|
|
|
3545 /* The modeline is at the bottom of the gutters. We have to wait to
|
|
|
3546 set this until we've generated the modeline in order to account
|
|
|
3547 for any embedded faces. */
|
|
|
3548 dl->ypos = WINDOW_BOTTOM (w) - dl->descent - ypos_adj;
|
|
|
3549 }
|
|
|
3550
|
|
412
|
3551 static void
|
|
|
3552 generate_formatted_string_db (Lisp_Object format_str, Lisp_Object result_str,
|
|
|
3553 struct window *w, struct display_line *dl,
|
|
|
3554 struct display_block *db, face_index findex,
|
|
|
3555 int min_pixpos, int max_pixpos, int type)
|
|
|
3556 {
|
|
|
3557 struct frame *f = XFRAME (w->frame);
|
|
|
3558 struct device *d = XDEVICE (f->device);
|
|
|
3559
|
|
|
3560 pos_data data;
|
|
|
3561 int c_pixpos;
|
|
|
3562
|
|
|
3563 xzero (data);
|
|
|
3564 data.d = d;
|
|
|
3565 data.db = db;
|
|
|
3566 data.dl = dl;
|
|
|
3567 data.findex = findex;
|
|
|
3568 data.pixpos = min_pixpos;
|
|
|
3569 data.max_pixpos = max_pixpos;
|
|
|
3570 data.cursor_type = NO_CURSOR;
|
|
|
3571 data.last_charset = Qunbound;
|
|
|
3572 data.last_findex = DEFAULT_INDEX;
|
|
|
3573 data.result_str = result_str;
|
|
|
3574 data.is_modeline = 1;
|
|
|
3575 XSETWINDOW (data.window, w);
|
|
|
3576
|
|
|
3577 Dynarr_reset (formatted_string_extent_dynarr);
|
|
|
3578 Dynarr_reset (formatted_string_extent_start_dynarr);
|
|
|
3579 Dynarr_reset (formatted_string_extent_end_dynarr);
|
|
|
3580
|
|
|
3581 /* This recursively builds up the modeline. */
|
|
|
3582 generate_fstring_runes (w, &data, 0, 0, -1, format_str, 0,
|
|
|
3583 max_pixpos - min_pixpos, findex, type);
|
|
|
3584
|
|
|
3585 if (Dynarr_length (db->runes))
|
|
|
3586 {
|
|
|
3587 struct rune *rb =
|
|
|
3588 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
3589 c_pixpos = rb->xpos + rb->width;
|
|
|
3590 }
|
|
|
3591 else
|
|
|
3592 c_pixpos = min_pixpos;
|
|
|
3593
|
|
|
3594 /* If we don't reach the right side of the window, add a blank rune
|
|
|
3595 to make up the difference. This usually only occurs if the
|
|
|
3596 modeline face is using a proportional width font or a fixed width
|
|
|
3597 font of a different size from the default face font. */
|
|
|
3598
|
|
|
3599 if (c_pixpos < max_pixpos)
|
|
|
3600 {
|
|
|
3601 data.pixpos = c_pixpos;
|
|
|
3602 data.blank_width = max_pixpos - data.pixpos;
|
|
|
3603
|
|
|
3604 add_blank_rune (&data, NULL, 0);
|
|
|
3605 }
|
|
|
3606
|
|
|
3607 /* Now create the result string and frob the extents into it. */
|
|
|
3608 if (!NILP (result_str))
|
|
|
3609 {
|
|
|
3610 int elt;
|
|
|
3611 Bytecount len;
|
|
|
3612 Bufbyte *strdata;
|
|
|
3613 struct buffer *buf = XBUFFER (WINDOW_BUFFER (w));
|
|
|
3614
|
|
|
3615 detach_all_extents (result_str);
|
|
|
3616 resize_string (XSTRING (result_str), -1,
|
|
|
3617 data.bytepos - XSTRING_LENGTH (result_str));
|
|
|
3618
|
|
|
3619 strdata = XSTRING_DATA (result_str);
|
|
|
3620
|
|
|
3621 for (elt = 0, len = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
3622 {
|
|
|
3623 if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
|
|
|
3624 {
|
|
|
3625 len += (set_charptr_emchar
|
|
|
3626 (strdata + len, Dynarr_atp (db->runes,
|
|
|
3627 elt)->object.chr.ch));
|
|
|
3628 }
|
|
|
3629 }
|
|
|
3630
|
|
|
3631 for (elt = 0; elt < Dynarr_length (formatted_string_extent_dynarr);
|
|
|
3632 elt++)
|
|
|
3633 {
|
|
|
3634 Lisp_Object extent = Qnil;
|
|
|
3635 Lisp_Object child;
|
|
|
3636
|
|
|
3637 XSETEXTENT (extent, Dynarr_at (formatted_string_extent_dynarr, elt));
|
|
|
3638 child = Fgethash (extent, buf->modeline_extent_table, Qnil);
|
|
|
3639 if (NILP (child))
|
|
|
3640 {
|
|
|
3641 child = Fmake_extent (Qnil, Qnil, result_str);
|
|
|
3642 Fputhash (extent, child, buf->modeline_extent_table);
|
|
|
3643 }
|
|
|
3644 Fset_extent_parent (child, extent);
|
|
|
3645 set_extent_endpoints
|
|
|
3646 (XEXTENT (child),
|
|
|
3647 Dynarr_at (formatted_string_extent_start_dynarr, elt),
|
|
|
3648 Dynarr_at (formatted_string_extent_end_dynarr, elt),
|
|
|
3649 result_str);
|
|
|
3650 }
|
|
|
3651 }
|
|
|
3652 }
|
|
|
3653
|
|
265
|
3654 static Charcount
|
|
412
|
3655 add_string_to_fstring_db_runes (pos_data *data, CONST Bufbyte *str,
|
|
265
|
3656 Charcount pos, Charcount min_pos, Charcount max_pos)
|
|
|
3657 {
|
|
|
3658 /* This function has been Mule-ized. */
|
|
|
3659 Charcount end;
|
|
412
|
3660 CONST Bufbyte *cur_pos = str;
|
|
265
|
3661 struct display_block *db = data->db;
|
|
|
3662
|
|
|
3663 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3664 while (Dynarr_length (db->runes) < pos)
|
|
|
3665 add_blank_rune (data, NULL, 0);
|
|
|
3666
|
|
|
3667 end = (Dynarr_length (db->runes) +
|
|
412
|
3668 bytecount_to_charcount (str, strlen ((CONST char *) str)));
|
|
265
|
3669 if (max_pos != -1)
|
|
|
3670 end = min (max_pos, end);
|
|
|
3671
|
|
|
3672 while (pos < end && *cur_pos)
|
|
|
3673 {
|
|
412
|
3674 CONST Bufbyte *old_cur_pos = cur_pos;
|
|
265
|
3675 int succeeded;
|
|
|
3676
|
|
|
3677 data->ch = charptr_emchar (cur_pos);
|
|
|
3678 succeeded = (add_emchar_rune (data) != ADD_FAILED);
|
|
|
3679 INC_CHARPTR (cur_pos);
|
|
|
3680 if (succeeded)
|
|
|
3681 {
|
|
|
3682 pos++;
|
|
|
3683 data->modeline_charpos++;
|
|
|
3684 data->bytepos += cur_pos - old_cur_pos;
|
|
|
3685 }
|
|
|
3686 }
|
|
|
3687
|
|
|
3688 while (Dynarr_length (db->runes) < min_pos &&
|
|
|
3689 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3690 add_blank_rune (data, NULL, 0);
|
|
|
3691
|
|
|
3692 return Dynarr_length (db->runes);
|
|
|
3693 }
|
|
|
3694
|
|
|
3695 /* #### Urk! Should also handle begin-glyphs and end-glyphs in
|
|
|
3696 modeline extents. */
|
|
|
3697 static Charcount
|
|
|
3698 add_glyph_to_fstring_db_runes (pos_data *data, Lisp_Object glyph,
|
|
412
|
3699 Charcount pos, Charcount min_pos, Charcount max_pos)
|
|
265
|
3700 {
|
|
|
3701 /* This function has been Mule-ized. */
|
|
|
3702 Charcount end;
|
|
|
3703 struct display_block *db = data->db;
|
|
|
3704 struct glyph_block gb;
|
|
|
3705
|
|
|
3706 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3707 while (Dynarr_length (db->runes) < pos)
|
|
|
3708 add_blank_rune (data, NULL, 0);
|
|
|
3709
|
|
|
3710 end = Dynarr_length (db->runes) + 1;
|
|
|
3711 if (max_pos != -1)
|
|
|
3712 end = min (max_pos, end);
|
|
|
3713
|
|
|
3714 gb.glyph = glyph;
|
|
412
|
3715 gb.extent = Qnil;
|
|
265
|
3716 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
3717 pos++;
|
|
|
3718
|
|
|
3719 while (Dynarr_length (db->runes) < pos &&
|
|
|
3720 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3721 add_blank_rune (data, NULL, 0);
|
|
|
3722
|
|
|
3723 return Dynarr_length (db->runes);
|
|
|
3724 }
|
|
|
3725
|
|
|
3726 /* If max_pos is == -1, it is considered to be infinite. The same is
|
|
|
3727 true of max_pixsize. */
|
|
|
3728 #define SET_CURRENT_MODE_CHARS_PIXSIZE \
|
|
|
3729 if (Dynarr_length (data->db->runes)) \
|
|
|
3730 cur_pixsize = data->pixpos - Dynarr_atp (data->db->runes, 0)->xpos; \
|
|
|
3731 else \
|
|
|
3732 cur_pixsize = 0;
|
|
|
3733
|
|
|
3734 /* Note that this function does "positions" in terms of characters and
|
|
|
3735 not in terms of columns. This is necessary to make the formatting
|
|
|
3736 work correctly when proportional width fonts are used in the
|
|
|
3737 modeline. */
|
|
|
3738 static Charcount
|
|
|
3739 generate_fstring_runes (struct window *w, pos_data *data, Charcount pos,
|
|
|
3740 Charcount min_pos, Charcount max_pos,
|
|
|
3741 Lisp_Object elt, int depth, int max_pixsize,
|
|
412
|
3742 face_index findex, int type)
|
|
265
|
3743 {
|
|
|
3744 /* This function has been Mule-ized. */
|
|
|
3745 /* #### The other losing things in this function are:
|
|
|
3746
|
|
|
3747 -- C zero-terminated-string lossage.
|
|
|
3748 -- Non-printable characters should be converted into something
|
|
|
3749 appropriate (e.g. ^F) instead of blindly being printed anyway.
|
|
|
3750 */
|
|
|
3751
|
|
|
3752 tail_recurse:
|
|
|
3753 if (depth > 10)
|
|
|
3754 goto invalid;
|
|
|
3755
|
|
|
3756 depth++;
|
|
|
3757
|
|
|
3758 if (STRINGP (elt))
|
|
|
3759 {
|
|
|
3760 /* A string. Add to the display line and check for %-constructs
|
|
|
3761 within it. */
|
|
|
3762
|
|
|
3763 Bufbyte *this = XSTRING_DATA (elt);
|
|
|
3764
|
|
|
3765 while ((pos < max_pos || max_pos == -1) && *this)
|
|
|
3766 {
|
|
|
3767 Bufbyte *last = this;
|
|
|
3768
|
|
|
3769 while (*this && *this != '%')
|
|
|
3770 this++;
|
|
|
3771
|
|
|
3772 if (this != last)
|
|
|
3773 {
|
|
412
|
3774 /* The string is just a string. */
|
|
265
|
3775 Charcount size =
|
|
412
|
3776 bytecount_to_charcount (last, this - last) + pos;
|
|
|
3777 Charcount tmp_max = (max_pos == -1 ? size : min (size, max_pos));
|
|
|
3778
|
|
|
3779 pos = add_string_to_fstring_db_runes (data, last, pos, pos,
|
|
|
3780 tmp_max);
|
|
265
|
3781 }
|
|
|
3782 else /* *this == '%' */
|
|
|
3783 {
|
|
|
3784 Charcount spec_width = 0;
|
|
|
3785
|
|
|
3786 this++; /* skip over '%' */
|
|
|
3787
|
|
|
3788 /* We can't allow -ve args due to the "%-" construct.
|
|
|
3789 * Argument specifies minwidth but not maxwidth
|
|
|
3790 * (maxwidth can be specified by
|
|
|
3791 * (<negative-number> . <stuff>) modeline elements)
|
|
|
3792 */
|
|
|
3793 while (isdigit (*this))
|
|
|
3794 {
|
|
|
3795 spec_width = spec_width * 10 + (*this - '0');
|
|
|
3796 this++;
|
|
|
3797 }
|
|
|
3798 spec_width += pos;
|
|
|
3799
|
|
|
3800 if (*this == 'M')
|
|
|
3801 {
|
|
|
3802 pos = generate_fstring_runes (w, data, pos, spec_width,
|
|
|
3803 max_pos, Vglobal_mode_string,
|
|
|
3804 depth, max_pixsize, findex,
|
|
412
|
3805 type);
|
|
265
|
3806 }
|
|
|
3807 else if (*this == '-')
|
|
|
3808 {
|
|
|
3809 Charcount num_to_add;
|
|
|
3810
|
|
|
3811 if (max_pixsize < 0)
|
|
|
3812 num_to_add = 0;
|
|
|
3813 else if (max_pos != -1)
|
|
|
3814 num_to_add = max_pos - pos;
|
|
|
3815 else
|
|
|
3816 {
|
|
|
3817 int cur_pixsize;
|
|
|
3818 int dash_pixsize;
|
|
|
3819 Bufbyte ch = '-';
|
|
|
3820 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3821
|
|
|
3822 dash_pixsize =
|
|
|
3823 redisplay_text_width_string (w, findex, &ch, Qnil, 0,
|
|
|
3824 1);
|
|
|
3825
|
|
|
3826 num_to_add = (max_pixsize - cur_pixsize) / dash_pixsize;
|
|
|
3827 num_to_add++;
|
|
|
3828 }
|
|
|
3829
|
|
|
3830 while (num_to_add--)
|
|
|
3831 pos = add_string_to_fstring_db_runes
|
|
412
|
3832 (data, (CONST Bufbyte *) "-", pos, pos, max_pos);
|
|
265
|
3833 }
|
|
|
3834 else if (*this != 0)
|
|
|
3835 {
|
|
412
|
3836 Bufbyte *str;
|
|
398
|
3837 Emchar ch = charptr_emchar (this);
|
|
265
|
3838 decode_mode_spec (w, ch, type);
|
|
|
3839
|
|
|
3840 str = Dynarr_atp (mode_spec_bufbyte_string, 0);
|
|
412
|
3841 pos = add_string_to_fstring_db_runes (data,str, pos, pos,
|
|
|
3842 max_pos);
|
|
265
|
3843 }
|
|
|
3844
|
|
|
3845 /* NOT this++. There could be any sort of character at
|
|
|
3846 the current position. */
|
|
|
3847 INC_CHARPTR (this);
|
|
|
3848 }
|
|
|
3849
|
|
|
3850 if (max_pixsize > 0)
|
|
|
3851 {
|
|
|
3852 int cur_pixsize;
|
|
|
3853 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3854
|
|
|
3855 if (cur_pixsize >= max_pixsize)
|
|
|
3856 break;
|
|
|
3857 }
|
|
|
3858 }
|
|
|
3859 }
|
|
|
3860 else if (SYMBOLP (elt))
|
|
|
3861 {
|
|
|
3862 /* A symbol: process the value of the symbol recursively
|
|
|
3863 as if it appeared here directly. */
|
|
|
3864 Lisp_Object tem = symbol_value_in_buffer (elt, w->buffer);
|
|
|
3865
|
|
|
3866 if (!UNBOUNDP (tem))
|
|
|
3867 {
|
|
412
|
3868 /* If value is a string, output that string literally:
|
|
265
|
3869 don't check for % within it. */
|
|
|
3870 if (STRINGP (tem))
|
|
|
3871 {
|
|
412
|
3872 pos =
|
|
|
3873 add_string_to_fstring_db_runes
|
|
|
3874 (data, XSTRING_DATA (tem), pos, min_pos, max_pos);
|
|
265
|
3875 }
|
|
|
3876 /* Give up right away for nil or t. */
|
|
|
3877 else if (!EQ (tem, elt))
|
|
|
3878 {
|
|
|
3879 elt = tem;
|
|
|
3880 goto tail_recurse;
|
|
|
3881 }
|
|
|
3882 }
|
|
|
3883 }
|
|
274
|
3884 else if (GENERIC_SPECIFIERP (elt))
|
|
|
3885 {
|
|
|
3886 Lisp_Object window, tem;
|
|
|
3887 XSETWINDOW (window, w);
|
|
|
3888 tem = specifier_instance_no_quit (elt, Qunbound, window,
|
|
|
3889 ERROR_ME_NOT, 0, Qzero);
|
|
|
3890 if (!UNBOUNDP (tem))
|
|
|
3891 {
|
|
|
3892 elt = tem;
|
|
|
3893 goto tail_recurse;
|
|
|
3894 }
|
|
|
3895 }
|
|
265
|
3896 else if (CONSP (elt))
|
|
|
3897 {
|
|
|
3898 /* A cons cell: four distinct cases.
|
|
412
|
3899 * If first element is a string or a cons, process all the elements
|
|
|
3900 * and effectively concatenate them.
|
|
|
3901 * If first element is a negative number, truncate displaying cdr to
|
|
|
3902 * at most that many characters. If positive, pad (with spaces)
|
|
|
3903 * to at least that many characters.
|
|
|
3904 * If first element is a symbol, process the cadr or caddr recursively
|
|
|
3905 * according to whether the symbol's value is non-nil or nil.
|
|
|
3906 * If first element is a face, process the cdr recursively
|
|
|
3907 * without altering the depth.
|
|
265
|
3908 */
|
|
|
3909 Lisp_Object car, tem;
|
|
|
3910
|
|
|
3911 car = XCAR (elt);
|
|
|
3912 if (SYMBOLP (car))
|
|
412
|
3913 {
|
|
|
3914 elt = XCDR (elt);
|
|
|
3915 if (!CONSP (elt))
|
|
|
3916 goto invalid;
|
|
|
3917 tem = symbol_value_in_buffer (car, w->buffer);
|
|
|
3918 /* elt is now the cdr, and we know it is a cons cell.
|
|
|
3919 Use its car if CAR has a non-nil value. */
|
|
|
3920 if (!UNBOUNDP (tem))
|
|
|
3921 {
|
|
|
3922 if (!NILP (tem))
|
|
|
3923 {
|
|
|
3924 elt = XCAR (elt);
|
|
|
3925 goto tail_recurse;
|
|
|
3926 }
|
|
|
3927 }
|
|
|
3928 /* Symbol's value is nil (or symbol is unbound)
|
|
|
3929 * Get the cddr of the original list
|
|
|
3930 * and if possible find the caddr and use that.
|
|
|
3931 */
|
|
|
3932 elt = XCDR (elt);
|
|
|
3933 if (NILP (elt))
|
|
|
3934 ;
|
|
|
3935 else if (!CONSP (elt))
|
|
|
3936 goto invalid;
|
|
|
3937 else
|
|
|
3938 {
|
|
|
3939 elt = XCAR (elt);
|
|
|
3940 goto tail_recurse;
|
|
|
3941 }
|
|
|
3942 }
|
|
265
|
3943 else if (INTP (car))
|
|
|
3944 {
|
|
|
3945 Charcount lim = XINT (car);
|
|
|
3946
|
|
|
3947 elt = XCDR (elt);
|
|
|
3948
|
|
|
3949 if (lim < 0)
|
|
|
3950 {
|
|
|
3951 /* Negative int means reduce maximum width.
|
|
|
3952 * DO NOT change MIN_PIXPOS here!
|
|
|
3953 * (20 -10 . foo) should truncate foo to 10 col
|
|
|
3954 * and then pad to 20.
|
|
|
3955 */
|
|
|
3956 if (max_pos == -1)
|
|
|
3957 max_pos = pos - lim;
|
|
|
3958 else
|
|
|
3959 max_pos = min (max_pos, pos - lim);
|
|
|
3960 }
|
|
|
3961 else if (lim > 0)
|
|
|
3962 {
|
|
|
3963 /* Padding specified. Don't let it be more than
|
|
|
3964 * current maximum.
|
|
|
3965 */
|
|
|
3966 lim += pos;
|
|
|
3967 if (max_pos != -1 && lim > max_pos)
|
|
|
3968 lim = max_pos;
|
|
|
3969 /* If that's more padding than already wanted, queue it.
|
|
|
3970 * But don't reduce padding already specified even if
|
|
|
3971 * that is beyond the current truncation point.
|
|
|
3972 */
|
|
|
3973 if (lim > min_pos)
|
|
|
3974 min_pos = lim;
|
|
|
3975 }
|
|
|
3976 goto tail_recurse;
|
|
|
3977 }
|
|
|
3978 else if (STRINGP (car) || CONSP (car))
|
|
|
3979 {
|
|
|
3980 int limit = 50;
|
|
|
3981 /* LIMIT is to protect against circular lists. */
|
|
|
3982 while (CONSP (elt) && --limit > 0
|
|
|
3983 && (pos < max_pos || max_pos == -1))
|
|
|
3984 {
|
|
|
3985 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
412
|
3986 XCAR (elt), depth,
|
|
|
3987 max_pixsize, findex, type);
|
|
265
|
3988 elt = XCDR (elt);
|
|
|
3989 }
|
|
|
3990 }
|
|
|
3991 else if (EXTENTP (car))
|
|
|
3992 {
|
|
|
3993 struct extent *ext = XEXTENT (car);
|
|
|
3994
|
|
|
3995 if (EXTENT_LIVE_P (ext))
|
|
|
3996 {
|
|
|
3997 face_index old_findex = data->findex;
|
|
|
3998 Lisp_Object face;
|
|
|
3999 Lisp_Object font_inst;
|
|
|
4000 face_index new_findex;
|
|
|
4001 Bytecount start = data->bytepos;
|
|
|
4002
|
|
|
4003 face = extent_face (ext);
|
|
|
4004 if (FACEP (face))
|
|
|
4005 {
|
|
|
4006 /* #### needs to merge faces, sigh */
|
|
|
4007 /* #### needs to handle list of faces */
|
|
|
4008 new_findex = get_builtin_face_cache_index (w, face);
|
|
|
4009 /* !!#### not right; needs to compute the max height of
|
|
|
4010 all the charsets */
|
|
|
4011 font_inst = WINDOW_FACE_CACHEL_FONT (w, new_findex,
|
|
|
4012 Vcharset_ascii);
|
|
|
4013
|
|
|
4014 data->dl->ascent = max (data->dl->ascent,
|
|
|
4015 XFONT_INSTANCE (font_inst)->ascent);
|
|
|
4016 data->dl->descent = max (data->dl->descent,
|
|
|
4017 XFONT_INSTANCE (font_inst)->
|
|
|
4018 descent);
|
|
|
4019 }
|
|
|
4020 else
|
|
|
4021 new_findex = old_findex;
|
|
|
4022
|
|
|
4023 data->findex = new_findex;
|
|
|
4024 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
|
4025 XCDR (elt), depth - 1,
|
|
412
|
4026 max_pixsize, new_findex, type);
|
|
265
|
4027 data->findex = old_findex;
|
|
|
4028 Dynarr_add (formatted_string_extent_dynarr, ext);
|
|
|
4029 Dynarr_add (formatted_string_extent_start_dynarr, start);
|
|
|
4030 Dynarr_add (formatted_string_extent_end_dynarr, data->bytepos);
|
|
|
4031 }
|
|
|
4032 }
|
|
|
4033 }
|
|
|
4034 else if (GLYPHP (elt))
|
|
|
4035 {
|
|
412
|
4036 pos = add_glyph_to_fstring_db_runes (data, elt, pos, pos, max_pos);
|
|
265
|
4037 }
|
|
|
4038 else
|
|
|
4039 {
|
|
|
4040 invalid:
|
|
412
|
4041 pos =
|
|
|
4042 add_string_to_fstring_db_runes
|
|
|
4043 (data, (CONST Bufbyte *) GETTEXT ("*invalid*"), pos, min_pos,
|
|
|
4044 max_pos);
|
|
265
|
4045 }
|
|
|
4046
|
|
|
4047 if (min_pos > pos)
|
|
|
4048 {
|
|
412
|
4049 add_string_to_fstring_db_runes (data, (CONST Bufbyte *) "", pos, min_pos,
|
|
|
4050 -1);
|
|
265
|
4051 }
|
|
|
4052
|
|
|
4053 return pos;
|
|
|
4054 }
|
|
0
|
4055
|
|
412
|
4056 /* The caller is responsible for freeing the returned string. */
|
|
|
4057 Bufbyte *
|
|
|
4058 generate_formatted_string (struct window *w, Lisp_Object format_str,
|
|
|
4059 Lisp_Object result_str, face_index findex, int type)
|
|
|
4060 {
|
|
|
4061 struct display_line *dl;
|
|
|
4062 struct display_block *db;
|
|
|
4063 int elt = 0;
|
|
|
4064
|
|
|
4065 dl = &formatted_string_display_line;
|
|
|
4066 db = get_display_block_from_line (dl, TEXT);
|
|
|
4067 Dynarr_reset (db->runes);
|
|
|
4068
|
|
|
4069 generate_formatted_string_db (format_str, result_str, w, dl, db, findex, 0,
|
|
|
4070 -1, type);
|
|
|
4071
|
|
|
4072 Dynarr_reset (formatted_string_emchar_dynarr);
|
|
|
4073 while (elt < Dynarr_length (db->runes))
|
|
|
4074 {
|
|
|
4075 if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
|
|
|
4076 Dynarr_add (formatted_string_emchar_dynarr,
|
|
|
4077 Dynarr_atp (db->runes, elt)->object.chr.ch);
|
|
|
4078 elt++;
|
|
|
4079 }
|
|
|
4080
|
|
|
4081 return
|
|
|
4082 convert_emchar_string_into_malloced_string
|
|
|
4083 ( Dynarr_atp (formatted_string_emchar_dynarr, 0),
|
|
|
4084 Dynarr_length (formatted_string_emchar_dynarr), 0);
|
|
|
4085 }
|
|
|
4086
|
|
0
|
4087 /* Update just the modeline. Assumes the desired display structs. If
|
|
|
4088 they do not have a modeline block, it does nothing. */
|
|
|
4089 static void
|
|
|
4090 regenerate_modeline (struct window *w)
|
|
|
4091 {
|
|
|
4092 display_line_dynarr *dla = window_display_lines (w, DESIRED_DISP);
|
|
|
4093
|
|
|
4094 if (!Dynarr_length (dla) || !Dynarr_atp (dla, 0)->modeline)
|
|
|
4095 return;
|
|
|
4096 else
|
|
|
4097 {
|
|
|
4098 generate_modeline (w, Dynarr_atp (dla, 0), DESIRED_DISP);
|
|
|
4099 redisplay_update_line (w, 0, 0, 0);
|
|
|
4100 }
|
|
|
4101 }
|
|
|
4102
|
|
|
4103 /* Make sure that modeline display line is present in the given
|
|
|
4104 display structs if the window has a modeline and update that
|
|
|
4105 line. Returns true if a modeline was needed. */
|
|
|
4106 static int
|
|
|
4107 ensure_modeline_generated (struct window *w, int type)
|
|
|
4108 {
|
|
|
4109 int need_modeline;
|
|
|
4110
|
|
|
4111 /* minibuffer windows don't have modelines */
|
|
|
4112 if (MINI_WINDOW_P (w))
|
|
|
4113 need_modeline = 0;
|
|
|
4114 /* windows which haven't had it turned off do */
|
|
|
4115 else if (WINDOW_HAS_MODELINE_P (w))
|
|
|
4116 need_modeline = 1;
|
|
|
4117 /* windows which have it turned off don't have a divider if there is
|
|
|
4118 a horizontal scrollbar */
|
|
|
4119 else if (window_scrollbar_height (w))
|
|
|
4120 need_modeline = 0;
|
|
|
4121 /* and in this case there is none */
|
|
|
4122 else
|
|
|
4123 need_modeline = 1;
|
|
|
4124
|
|
|
4125 if (need_modeline)
|
|
|
4126 {
|
|
|
4127 display_line_dynarr *dla;
|
|
|
4128
|
|
|
4129 dla = window_display_lines (w, type);
|
|
|
4130
|
|
|
4131 /* We don't care if there is a display line which is not
|
|
|
4132 currently a modeline because it is definitely going to become
|
|
|
4133 one if we have gotten to this point. */
|
|
|
4134 if (Dynarr_length (dla) == 0)
|
|
|
4135 {
|
|
|
4136 if (Dynarr_largest (dla) > 0)
|
|
|
4137 {
|
|
|
4138 struct display_line *mlp = Dynarr_atp (dla, 0);
|
|
|
4139 Dynarr_add (dla, *mlp);
|
|
|
4140 }
|
|
|
4141 else
|
|
|
4142 {
|
|
|
4143 struct display_line modeline;
|
|
272
|
4144 xzero (modeline);
|
|
0
|
4145 Dynarr_add (dla, modeline);
|
|
|
4146 }
|
|
|
4147 }
|
|
|
4148
|
|
|
4149 /* If we're adding a new place marker go ahead and generate the
|
|
|
4150 modeline so that it is available for use by
|
|
|
4151 window_modeline_height. */
|
|
|
4152 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
4153 }
|
|
|
4154
|
|
|
4155 return need_modeline;
|
|
|
4156 }
|
|
|
4157
|
|
|
4158 /* #### Kludge or not a kludge. I tend towards the former. */
|
|
|
4159 int
|
|
|
4160 real_current_modeline_height (struct window *w)
|
|
|
4161 {
|
|
185
|
4162 Fset_marker (w->start[CMOTION_DISP], w->start[CURRENT_DISP], w->buffer);
|
|
2
|
4163 Fset_marker (w->pointm[CMOTION_DISP], w->pointm[CURRENT_DISP], w->buffer);
|
|
0
|
4164
|
|
|
4165 if (ensure_modeline_generated (w, CMOTION_DISP))
|
|
|
4166 {
|
|
185
|
4167 display_line_dynarr *dla = window_display_lines (w, CMOTION_DISP);
|
|
0
|
4168
|
|
|
4169 if (Dynarr_length (dla))
|
|
|
4170 {
|
|
|
4171 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
4172 return (Dynarr_atp (dla, 0)->ascent +
|
|
|
4173 Dynarr_atp (dla, 0)->descent);
|
|
185
|
4174 }
|
|
|
4175 }
|
|
|
4176 return 0;
|
|
0
|
4177 }
|
|
|
4178
|
|
|
4179
|
|
|
4180 /***************************************************************************/
|
|
|
4181 /* */
|
|
|
4182 /* window-regeneration routines */
|
|
|
4183 /* */
|
|
|
4184 /***************************************************************************/
|
|
|
4185
|
|
|
4186 /* For a given window and starting position in the buffer it contains,
|
|
|
4187 ensure that the TYPE display lines accurately represent the
|
|
|
4188 presentation of the window. We pass the buffer instead of getting
|
|
|
4189 it from the window since redisplay_window may have temporarily
|
|
|
4190 changed it to the echo area buffer. */
|
|
|
4191
|
|
|
4192 static void
|
|
|
4193 regenerate_window (struct window *w, Bufpos start_pos, Bufpos point, int type)
|
|
|
4194 {
|
|
|
4195 struct frame *f = XFRAME (w->frame);
|
|
|
4196 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4197 int ypos = WINDOW_TEXT_TOP (w);
|
|
|
4198 int yend; /* set farther down */
|
|
|
4199
|
|
|
4200 prop_block_dynarr *prop;
|
|
|
4201 layout_bounds bounds;
|
|
|
4202 display_line_dynarr *dla;
|
|
|
4203 int need_modeline;
|
|
|
4204
|
|
|
4205 /* The lines had better exist by this point. */
|
|
|
4206 if (!(dla = window_display_lines (w, type)))
|
|
|
4207 abort ();
|
|
|
4208 Dynarr_reset (dla);
|
|
|
4209 w->max_line_len = 0;
|
|
|
4210
|
|
|
4211 /* Normally these get updated in redisplay_window but it is possible
|
|
|
4212 for this function to get called from some other points where that
|
|
|
4213 update may not have occurred. This acts as a safety check. */
|
|
|
4214 if (!Dynarr_length (w->face_cachels))
|
|
|
4215 reset_face_cachels (w);
|
|
|
4216 if (!Dynarr_length (w->glyph_cachels))
|
|
|
4217 reset_glyph_cachels (w);
|
|
|
4218
|
|
|
4219 Fset_marker (w->start[type], make_int (start_pos), w->buffer);
|
|
|
4220 Fset_marker (w->pointm[type], make_int (point), w->buffer);
|
|
|
4221 w->last_point_x[type] = -1;
|
|
|
4222 w->last_point_y[type] = -1;
|
|
|
4223
|
|
|
4224 /* Make sure a modeline is in the structs if needed. */
|
|
|
4225 need_modeline = ensure_modeline_generated (w, type);
|
|
|
4226
|
|
|
4227 /* Wait until here to set this so that the structs have a modeline
|
|
|
4228 generated in the case where one didn't exist. */
|
|
|
4229 yend = WINDOW_TEXT_BOTTOM (w);
|
|
|
4230
|
|
|
4231 bounds = calculate_display_line_boundaries (w, 0);
|
|
|
4232
|
|
110
|
4233 /* 97/3/14 jhod: stuff added here to support pre-prompts (used for input systems) */
|
|
0
|
4234 if (MINI_WINDOW_P (w)
|
|
110
|
4235 && (!NILP (Vminibuf_prompt) || !NILP (Vminibuf_preprompt))
|
|
0
|
4236 && !echo_area_active (f)
|
|
|
4237 && start_pos == BUF_BEGV (b))
|
|
|
4238 {
|
|
|
4239 struct prop_block pb;
|
|
110
|
4240 Lisp_Object string;
|
|
185
|
4241 prop = Dynarr_new (prop_block);
|
|
0
|
4242
|
|
110
|
4243 string = concat2(Vminibuf_preprompt, Vminibuf_prompt);
|
|
0
|
4244 pb.type = PROP_MINIBUF_PROMPT;
|
|
110
|
4245 pb.data.p_string.str = XSTRING_DATA(string);
|
|
|
4246 pb.data.p_string.len = XSTRING_LENGTH(string);
|
|
0
|
4247 Dynarr_add (prop, pb);
|
|
|
4248 }
|
|
|
4249 else
|
|
|
4250 prop = 0;
|
|
|
4251
|
|
412
|
4252 while (ypos < yend)
|
|
0
|
4253 {
|
|
|
4254 struct display_line dl;
|
|
|
4255 struct display_line *dlp;
|
|
|
4256 int local;
|
|
|
4257
|
|
|
4258 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
4259 {
|
|
|
4260 dlp = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
4261 local = 0;
|
|
|
4262 }
|
|
|
4263 else
|
|
|
4264 {
|
|
272
|
4265 xzero (dl);
|
|
0
|
4266 dlp = &dl;
|
|
|
4267 local = 1;
|
|
|
4268 }
|
|
|
4269
|
|
|
4270 dlp->bounds = bounds;
|
|
|
4271 dlp->offset = 0;
|
|
412
|
4272 start_pos = generate_display_line (w, dlp, 1, start_pos,
|
|
|
4273 w->hscroll, &prop, type);
|
|
|
4274 dlp->ypos = ypos + dlp->ascent;
|
|
0
|
4275 ypos = dlp->ypos + dlp->descent;
|
|
|
4276
|
|
|
4277 if (ypos > yend)
|
|
|
4278 {
|
|
|
4279 int visible_height = dlp->ascent + dlp->descent;
|
|
|
4280
|
|
|
4281 dlp->clip = (ypos - yend);
|
|
412
|
4282 visible_height -= dlp->clip;
|
|
|
4283
|
|
|
4284 if (visible_height < VERTICAL_CLIP (w, 1))
|
|
0
|
4285 {
|
|
|
4286 if (local)
|
|
|
4287 free_display_line (dlp);
|
|
|
4288 break;
|
|
|
4289 }
|
|
|
4290 }
|
|
|
4291 else
|
|
|
4292 dlp->clip = 0;
|
|
|
4293
|
|
|
4294 if (dlp->cursor_elt != -1)
|
|
|
4295 {
|
|
|
4296 /* #### This check is steaming crap. Have to get things
|
|
|
4297 fixed so when create_text_block hits EOB, we're done,
|
|
|
4298 period. */
|
|
|
4299 if (w->last_point_x[type] == -1)
|
|
|
4300 {
|
|
|
4301 w->last_point_x[type] = dlp->cursor_elt;
|
|
|
4302 w->last_point_y[type] = Dynarr_length (dla);
|
|
|
4303 }
|
|
|
4304 else
|
|
|
4305 {
|
|
|
4306 /* #### This means that we've added a cursor at EOB
|
|
|
4307 twice. Yuck oh yuck. */
|
|
|
4308 struct display_block *db =
|
|
|
4309 get_display_block_from_line (dlp, TEXT);
|
|
|
4310
|
|
|
4311 Dynarr_atp (db->runes, dlp->cursor_elt)->cursor_type = NO_CURSOR;
|
|
|
4312 dlp->cursor_elt = -1;
|
|
|
4313 }
|
|
|
4314 }
|
|
|
4315
|
|
|
4316 if (dlp->num_chars > w->max_line_len)
|
|
|
4317 w->max_line_len = dlp->num_chars;
|
|
|
4318
|
|
|
4319 Dynarr_add (dla, *dlp);
|
|
|
4320
|
|
|
4321 /* #### This isn't right, but it is close enough for now. */
|
|
|
4322 w->window_end_pos[type] = start_pos;
|
|
|
4323
|
|
|
4324 /* #### This type of check needs to be done down in the
|
|
|
4325 generate_display_line call. */
|
|
|
4326 if (start_pos > BUF_ZV (b))
|
|
|
4327 break;
|
|
|
4328 }
|
|
|
4329
|
|
|
4330 if (prop)
|
|
384
|
4331 Dynarr_free (prop);
|
|
0
|
4332
|
|
|
4333 /* #### More not quite right, but close enough. */
|
|
412
|
4334 /* #### Ben sez: apparently window_end_pos[] is measured
|
|
0
|
4335 as the number of characters between the window end and the
|
|
|
4336 end of the buffer? This seems rather weirdo. What's
|
|
412
|
4337 the justification for this? */
|
|
0
|
4338 w->window_end_pos[type] = BUF_Z (b) - w->window_end_pos[type];
|
|
|
4339
|
|
|
4340 if (need_modeline)
|
|
|
4341 {
|
|
|
4342 /* We know that this is the right thing to use because we put it
|
|
|
4343 there when we first started working in this function. */
|
|
|
4344 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
4345 }
|
|
|
4346 }
|
|
|
4347
|
|
|
4348 #define REGEN_INC_FIND_START_END \
|
|
|
4349 do { \
|
|
|
4350 /* Determine start and end of lines. */ \
|
|
|
4351 if (!Dynarr_length (cdla)) \
|
|
|
4352 return 0; \
|
|
|
4353 else \
|
|
|
4354 { \
|
|
|
4355 if (Dynarr_atp (cdla, 0)->modeline && Dynarr_atp (ddla, 0)->modeline) \
|
|
|
4356 { \
|
|
|
4357 dla_start = 1; \
|
|
|
4358 } \
|
|
|
4359 else if (!Dynarr_atp (cdla, 0)->modeline \
|
|
|
4360 && !Dynarr_atp (ddla, 0)->modeline) \
|
|
|
4361 { \
|
|
|
4362 dla_start = 0; \
|
|
|
4363 } \
|
|
|
4364 else \
|
|
|
4365 abort (); /* structs differ */ \
|
|
|
4366 \
|
|
|
4367 dla_end = Dynarr_length (cdla) - 1; \
|
|
|
4368 } \
|
|
|
4369 \
|
|
|
4370 start_pos = (Dynarr_atp (cdla, dla_start)->bufpos \
|
|
|
4371 + Dynarr_atp (cdla, dla_start)->offset); \
|
|
|
4372 /* If this isn't true, then startp has changed and we need to do a \
|
|
|
4373 full regen. */ \
|
|
|
4374 if (startp != start_pos) \
|
|
|
4375 return 0; \
|
|
|
4376 \
|
|
|
4377 /* Point is outside the visible region so give up. */ \
|
|
|
4378 if (pointm < start_pos) \
|
|
|
4379 return 0; \
|
|
|
4380 \
|
|
|
4381 } while (0)
|
|
|
4382
|
|
|
4383 /* This attempts to incrementally update the display structures. It
|
|
|
4384 returns a boolean indicating success or failure. This function is
|
|
|
4385 very similar to regenerate_window_incrementally and is in fact only
|
|
|
4386 called from that function. However, because of the nature of the
|
|
|
4387 changes it deals with it sometimes makes different assumptions
|
|
|
4388 which can lead to success which are much more difficult to make
|
|
|
4389 when dealing with buffer changes. */
|
|
|
4390
|
|
|
4391 static int
|
|
|
4392 regenerate_window_extents_only_changed (struct window *w, Bufpos startp,
|
|
|
4393 Bufpos pointm,
|
|
|
4394 Charcount beg_unchanged,
|
|
|
4395 Charcount end_unchanged)
|
|
|
4396 {
|
|
|
4397 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4398 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
4399 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
4400
|
|
|
4401 int dla_start = 0;
|
|
|
4402 int dla_end, line;
|
|
|
4403 int first_line, last_line;
|
|
|
4404 Bufpos start_pos;
|
|
|
4405 /* Don't define this in the loop where it is used because we
|
|
|
4406 definitely want its value to survive between passes. */
|
|
|
4407 prop_block_dynarr *prop = NULL;
|
|
|
4408
|
|
|
4409 /* If we don't have any buffer change recorded but the modiff flag has
|
|
|
4410 been incremented, then fail. I'm not sure of the exact circumstances
|
|
|
4411 under which this can happen, but I believe that it is probably a
|
|
|
4412 reasonable happening. */
|
|
|
4413 if (!point_visible (w, pointm, CURRENT_DISP)
|
|
|
4414 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b))
|
|
|
4415 return 0;
|
|
|
4416
|
|
|
4417 /* If the cursor is moved we attempt to update it. If we succeed we
|
|
|
4418 go ahead and proceed with the optimization attempt. */
|
|
|
4419 if (!EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
4420 || pointm != marker_position (w->last_point[CURRENT_DISP]))
|
|
|
4421 {
|
|
|
4422 struct frame *f = XFRAME (w->frame);
|
|
|
4423 struct device *d = XDEVICE (f->device);
|
|
|
4424 struct frame *sel_f = device_selected_frame (d);
|
|
|
4425 int success = 0;
|
|
|
4426
|
|
|
4427 if (w->last_point_x[CURRENT_DISP] != -1
|
|
|
4428 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
4429 {
|
|
|
4430
|
|
|
4431 if (redisplay_move_cursor (w, pointm, WINDOW_TTY_P (w)))
|
|
|
4432 {
|
|
|
4433 /* Always regenerate the modeline in case it is
|
|
|
4434 displaying the current line or column. */
|
|
|
4435 regenerate_modeline (w);
|
|
|
4436 success = 1;
|
|
|
4437 }
|
|
|
4438 }
|
|
|
4439 else if (w != XWINDOW (FRAME_SELECTED_WINDOW (sel_f)))
|
|
|
4440 {
|
|
|
4441 if (f->modeline_changed)
|
|
|
4442 regenerate_modeline (w);
|
|
|
4443 success = 1;
|
|
|
4444 }
|
|
|
4445
|
|
|
4446 if (!success)
|
|
|
4447 return 0;
|
|
|
4448 }
|
|
|
4449
|
|
|
4450 if (beg_unchanged == -1 && end_unchanged == -1)
|
|
|
4451 return 1;
|
|
|
4452
|
|
|
4453 /* assert: There are no buffer modifications or they are all below the
|
|
|
4454 visible region. We assume that regenerate_window_incrementally has
|
|
|
4455 not called us unless this is true. */
|
|
|
4456
|
|
|
4457 REGEN_INC_FIND_START_END;
|
|
|
4458
|
|
|
4459 /* If the changed are starts before the visible area, give up. */
|
|
|
4460 if (beg_unchanged < startp)
|
|
|
4461 return 0;
|
|
|
4462
|
|
|
4463 /* Find what display line the extent changes first affect. */
|
|
|
4464 line = dla_start;
|
|
|
4465 while (line <= dla_end)
|
|
|
4466 {
|
|
|
4467 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
4468 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
4469 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
4470
|
|
|
4471 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
4472 break;
|
|
|
4473
|
|
|
4474 line++;
|
|
|
4475 }
|
|
|
4476
|
|
|
4477 /* If the changes are below the visible area then if point hasn't
|
|
|
4478 moved return success otherwise fail in order to be safe. */
|
|
|
4479 if (line > dla_end)
|
|
|
4480 {
|
|
|
4481 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
4482 && pointm == marker_position (w->last_point[CURRENT_DISP]))
|
|
|
4483 return 1;
|
|
|
4484 else
|
|
|
4485 return 0;
|
|
|
4486 }
|
|
|
4487
|
|
|
4488 /* At this point we know what line the changes first affect. We now
|
|
|
4489 begin redrawing lines as long as we are still in the affected
|
|
|
4490 region and the line's size and positioning don't change.
|
|
|
4491 Otherwise we fail. If we fail we will have altered the desired
|
|
|
4492 structs which could lead to an assertion failure. However, if we
|
|
|
4493 fail the next thing that is going to happen is a full regen so we
|
|
|
4494 will actually end up being safe. */
|
|
|
4495 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
4496 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
4497 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
4498 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
4499
|
|
|
4500 first_line = last_line = line;
|
|
|
4501 while (line <= dla_end)
|
|
|
4502 {
|
|
|
4503 Bufpos old_start, old_end, new_start;
|
|
|
4504 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
4505 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
4506 struct display_block *db;
|
|
|
4507 int initial_size;
|
|
|
4508
|
|
|
4509 assert (cdl->bufpos == ddl->bufpos);
|
|
|
4510 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
4511 assert (cdl->offset == ddl->offset);
|
|
|
4512
|
|
|
4513 db = get_display_block_from_line (ddl, TEXT);
|
|
|
4514 initial_size = Dynarr_length (db->runes);
|
|
|
4515 old_start = ddl->bufpos + ddl->offset;
|
|
|
4516 old_end = ddl->end_bufpos + ddl->offset;
|
|
|
4517
|
|
|
4518 /* If this is the first line being updated and it used
|
|
|
4519 propagation data, fail. Otherwise we'll be okay because
|
|
|
4520 we'll have the necessary propagation data. */
|
|
|
4521 if (line == first_line && ddl->used_prop_data)
|
|
|
4522 return 0;
|
|
|
4523
|
|
|
4524 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
412
|
4525 w->hscroll, &prop, DESIRED_DISP);
|
|
0
|
4526 ddl->offset = 0;
|
|
|
4527
|
|
|
4528 /* #### If there is propagated stuff the fail. We could
|
|
|
4529 probably actually deal with this if the line had propagated
|
|
|
4530 information when originally created by a full
|
|
|
4531 regeneration. */
|
|
|
4532 if (prop)
|
|
|
4533 {
|
|
|
4534 Dynarr_free (prop);
|
|
|
4535 return 0;
|
|
|
4536 }
|
|
|
4537
|
|
|
4538 /* If any line position parameters have changed or a
|
|
|
4539 cursor has disappeared or disappeared, fail. */
|
|
|
4540 db = get_display_block_from_line (ddl, TEXT);
|
|
|
4541 if (cdl->ypos != ddl->ypos
|
|
|
4542 || cdl->ascent != ddl->ascent
|
|
|
4543 || cdl->descent != ddl->descent
|
|
|
4544 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
4545 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
|
|
|
4546 || old_start != ddl->bufpos
|
|
|
4547 || old_end != ddl->end_bufpos
|
|
|
4548 || initial_size != Dynarr_length (db->runes))
|
|
|
4549 {
|
|
|
4550 return 0;
|
|
|
4551 }
|
|
|
4552
|
|
|
4553 if (ddl->cursor_elt != -1)
|
|
|
4554 {
|
|
|
4555 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
4556 w->last_point_y[DESIRED_DISP] = line;
|
|
|
4557 }
|
|
|
4558
|
|
|
4559 last_line = line;
|
|
|
4560
|
|
|
4561 /* If the extent changes end on the line we just updated then
|
|
|
4562 we're done. Otherwise go on to the next line. */
|
|
|
4563 if (end_unchanged <= ddl->end_bufpos)
|
|
|
4564 break;
|
|
|
4565 else
|
|
|
4566 line++;
|
|
|
4567 }
|
|
|
4568
|
|
|
4569 redisplay_update_line (w, first_line, last_line, 1);
|
|
|
4570 return 1;
|
|
|
4571 }
|
|
|
4572
|
|
|
4573 /* Attempt to update the display data structures based on knowledge of
|
|
|
4574 the changed region in the buffer. Returns a boolean indicating
|
|
|
4575 success or failure. If this function returns a failure then a
|
|
|
4576 regenerate_window _must_ be performed next in order to maintain
|
|
|
4577 invariants located here. */
|
|
|
4578
|
|
|
4579 static int
|
|
|
4580 regenerate_window_incrementally (struct window *w, Bufpos startp,
|
|
|
4581 Bufpos pointm)
|
|
|
4582 {
|
|
|
4583 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4584 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
4585 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
4586 Charcount beg_unchanged, end_unchanged;
|
|
|
4587 Charcount extent_beg_unchanged, extent_end_unchanged;
|
|
|
4588
|
|
|
4589 int dla_start = 0;
|
|
|
4590 int dla_end, line;
|
|
|
4591 Bufpos start_pos;
|
|
|
4592
|
|
|
4593 /* If this function is called, the current and desired structures
|
|
|
4594 had better be identical. If they are not, then that is a bug. */
|
|
|
4595 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
|
|
|
4596
|
|
|
4597 /* We don't handle minibuffer windows yet. The minibuffer prompt
|
|
|
4598 screws us up. */
|
|
|
4599 if (MINI_WINDOW_P (w))
|
|
|
4600 return 0;
|
|
|
4601
|
|
|
4602 extent_beg_unchanged = BUF_EXTENT_BEGIN_UNCHANGED (b);
|
|
|
4603 extent_end_unchanged = (BUF_EXTENT_END_UNCHANGED (b) == -1
|
|
|
4604 ? -1
|
|
|
4605 : BUF_Z (b) - BUF_EXTENT_END_UNCHANGED (b));
|
|
|
4606
|
|
|
4607 /* If nothing has changed in the buffer, then make sure point is ok
|
|
|
4608 and succeed. */
|
|
|
4609 if (BUF_BEGIN_UNCHANGED (b) == -1 && BUF_END_UNCHANGED (b) == -1)
|
|
|
4610 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
4611 extent_beg_unchanged,
|
|
|
4612 extent_end_unchanged);
|
|
|
4613
|
|
|
4614 /* We can't deal with deleted newlines. */
|
|
|
4615 if (BUF_NEWLINE_WAS_DELETED (b))
|
|
|
4616 return 0;
|
|
|
4617
|
|
|
4618 beg_unchanged = BUF_BEGIN_UNCHANGED (b);
|
|
|
4619 end_unchanged = (BUF_END_UNCHANGED (b) == -1
|
|
|
4620 ? -1
|
|
|
4621 : BUF_Z (b) - BUF_END_UNCHANGED (b));
|
|
|
4622
|
|
|
4623 REGEN_INC_FIND_START_END;
|
|
|
4624
|
|
|
4625 /* If the changed area starts before the visible area, give up. */
|
|
|
4626 if (beg_unchanged < startp)
|
|
|
4627 return 0;
|
|
|
4628
|
|
|
4629 /* Find what display line the buffer changes first affect. */
|
|
|
4630 line = dla_start;
|
|
|
4631 while (line <= dla_end)
|
|
|
4632 {
|
|
|
4633 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
4634 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
4635 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
4636
|
|
|
4637 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
4638 break;
|
|
|
4639
|
|
|
4640 line++;
|
|
|
4641 }
|
|
|
4642
|
|
|
4643 /* If the changes are below the visible area then if point hasn't
|
|
|
4644 moved return success otherwise fail in order to be safe. */
|
|
|
4645 if (line > dla_end)
|
|
384
|
4646 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
4647 extent_beg_unchanged,
|
|
|
4648 extent_end_unchanged);
|
|
0
|
4649 else
|
|
|
4650 /* At this point we know what line the changes first affect. We
|
|
|
4651 now redraw that line. If the changes are contained within it
|
|
|
4652 we are going to succeed and can update just that one line.
|
|
|
4653 Otherwise we fail. If we fail we will have altered the desired
|
|
|
4654 structs which could lead to an assertion failure. However, if
|
|
|
4655 we fail the next thing that is going to happen is a full regen
|
|
|
4656 so we will actually end up being safe. */
|
|
|
4657 {
|
|
|
4658 Bufpos new_start;
|
|
|
4659 prop_block_dynarr *prop = NULL;
|
|
|
4660 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
4661 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
4662
|
|
|
4663 assert (cdl->bufpos == ddl->bufpos);
|
|
|
4664 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
4665 assert (cdl->offset == ddl->offset);
|
|
|
4666
|
|
412
|
4667 /* If the last rune is already a continuation glyph, fail.
|
|
|
4668 #### We should be able to handle this better. */
|
|
|
4669 {
|
|
|
4670 struct display_block *db = get_display_block_from_line (ddl, TEXT);
|
|
|
4671 if (Dynarr_length (db->runes))
|
|
|
4672 {
|
|
|
4673 struct rune *rb =
|
|
|
4674 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
4675
|
|
|
4676 if (rb->type == RUNE_DGLYPH
|
|
|
4677 && EQ (rb->object.dglyph.glyph, Vcontinuation_glyph))
|
|
|
4678 return 0;
|
|
|
4679 }
|
|
|
4680 }
|
|
0
|
4681
|
|
|
4682 /* If the line was generated using propagation data, fail. */
|
|
|
4683 if (ddl->used_prop_data)
|
|
|
4684 return 0;
|
|
|
4685
|
|
|
4686 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
412
|
4687 w->hscroll, &prop, DESIRED_DISP);
|
|
0
|
4688 ddl->offset = 0;
|
|
|
4689
|
|
|
4690 /* If there is propagated stuff then it is pretty much a
|
|
|
4691 guarantee that more than just the one line is affected. */
|
|
|
4692 if (prop)
|
|
|
4693 {
|
|
|
4694 Dynarr_free (prop);
|
|
|
4695 return 0;
|
|
|
4696 }
|
|
|
4697
|
|
412
|
4698 /* If the last rune is now a continuation glyph, fail. */
|
|
|
4699 {
|
|
|
4700 struct display_block *db = get_display_block_from_line (ddl, TEXT);
|
|
|
4701 if (Dynarr_length (db->runes))
|
|
|
4702 {
|
|
|
4703 struct rune *rb =
|
|
|
4704 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
4705
|
|
|
4706 if (rb->type == RUNE_DGLYPH
|
|
|
4707 && EQ (rb->object.dglyph.glyph, Vcontinuation_glyph))
|
|
|
4708 return 0;
|
|
|
4709 }
|
|
|
4710 }
|
|
0
|
4711
|
|
|
4712 /* If any line position parameters have changed or a
|
|
|
4713 cursor has disappeared or disappeared, fail. */
|
|
|
4714 if (cdl->ypos != ddl->ypos
|
|
|
4715 || cdl->ascent != ddl->ascent
|
|
|
4716 || cdl->descent != ddl->descent
|
|
|
4717 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
4718 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1))
|
|
|
4719 {
|
|
|
4720 return 0;
|
|
|
4721 }
|
|
|
4722
|
|
|
4723 /* If the changed area also ends on this line, then we may be in
|
|
|
4724 business. Update everything and return success. */
|
|
|
4725 if (end_unchanged >= ddl->bufpos && end_unchanged <= ddl->end_bufpos)
|
|
|
4726 {
|
|
|
4727 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
4728 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
4729 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp),
|
|
|
4730 w->buffer);
|
|
|
4731 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm),
|
|
|
4732 w->buffer);
|
|
|
4733
|
|
|
4734 if (ddl->cursor_elt != -1)
|
|
|
4735 {
|
|
|
4736 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
4737 w->last_point_y[DESIRED_DISP] = line;
|
|
|
4738 }
|
|
|
4739
|
|
|
4740 redisplay_update_line (w, line, line, 1);
|
|
|
4741 regenerate_modeline (w);
|
|
|
4742
|
|
|
4743 /* #### For now we just flush the cache until this has been
|
|
|
4744 tested. After that is done, this should correct the
|
|
|
4745 cache directly. */
|
|
|
4746 Dynarr_reset (w->line_start_cache);
|
|
|
4747
|
|
|
4748 /* Adjust the extent changed boundaries to remove any
|
|
|
4749 overlap with the buffer changes since we've just
|
|
|
4750 successfully updated that area. */
|
|
|
4751 if (extent_beg_unchanged != -1
|
|
|
4752 && extent_beg_unchanged >= beg_unchanged
|
|
|
4753 && extent_beg_unchanged < end_unchanged)
|
|
|
4754 extent_beg_unchanged = end_unchanged;
|
|
|
4755
|
|
|
4756 if (extent_end_unchanged != -1
|
|
|
4757 && extent_end_unchanged >= beg_unchanged
|
|
|
4758 && extent_end_unchanged < end_unchanged)
|
|
|
4759 extent_end_unchanged = beg_unchanged - 1;
|
|
|
4760
|
|
|
4761 if (extent_end_unchanged <= extent_beg_unchanged)
|
|
|
4762 extent_beg_unchanged = extent_end_unchanged = -1;
|
|
|
4763
|
|
|
4764 /* This could lead to odd results if it fails, but since the
|
|
|
4765 buffer changes update succeeded this probably will to.
|
|
|
4766 We already know that the extent changes start at or after
|
|
|
4767 the line because we checked before entering the loop. */
|
|
|
4768 if (extent_beg_unchanged != -1
|
|
|
4769 && extent_end_unchanged != -1
|
|
|
4770 && ((extent_beg_unchanged < ddl->bufpos)
|
|
|
4771 || (extent_end_unchanged > ddl->end_bufpos)))
|
|
384
|
4772 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
4773 extent_beg_unchanged,
|
|
|
4774 extent_end_unchanged);
|
|
0
|
4775 else
|
|
|
4776 return 1;
|
|
|
4777 }
|
|
|
4778 }
|
|
|
4779
|
|
|
4780 /* Oh, well. */
|
|
|
4781 return 0;
|
|
|
4782 }
|
|
|
4783
|
|
|
4784 /* Given a window and a point, update the given display lines such
|
|
243
|
4785 that point is displayed in the middle of the window.
|
|
185
|
4786 Return the window's new start position. */
|
|
|
4787
|
|
|
4788 static Bufpos
|
|
0
|
4789 regenerate_window_point_center (struct window *w, Bufpos point, int type)
|
|
|
4790 {
|
|
|
4791 Bufpos startp;
|
|
|
4792
|
|
|
4793 /* We need to make sure that the modeline is generated so that the
|
|
|
4794 window height can be calculated correctly. */
|
|
|
4795 ensure_modeline_generated (w, type);
|
|
|
4796
|
|
|
4797 startp = start_with_line_at_pixpos (w, point, window_half_pixpos (w));
|
|
|
4798 regenerate_window (w, startp, point, type);
|
|
|
4799 Fset_marker (w->start[type], make_int (startp), w->buffer);
|
|
|
4800
|
|
185
|
4801 return startp;
|
|
0
|
4802 }
|
|
|
4803
|
|
|
4804 /* Given a window and a set of display lines, return a boolean
|
|
|
4805 indicating whether the given point is contained within. */
|
|
|
4806
|
|
|
4807 static int
|
|
|
4808 point_visible (struct window *w, Bufpos point, int type)
|
|
|
4809 {
|
|
|
4810 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4811 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
4812 int first_line;
|
|
|
4813
|
|
|
4814 if (Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
4815 first_line = 1;
|
|
|
4816 else
|
|
|
4817 first_line = 0;
|
|
|
4818
|
|
|
4819 if (Dynarr_length (dla) > first_line)
|
|
|
4820 {
|
|
|
4821 Bufpos start, end;
|
|
|
4822 struct display_line *dl = Dynarr_atp (dla, first_line);
|
|
|
4823
|
|
|
4824 start = dl->bufpos;
|
|
|
4825 end = BUF_Z (b) - w->window_end_pos[type] - 1;
|
|
|
4826
|
|
|
4827 if (point >= start && point <= end)
|
|
|
4828 {
|
|
|
4829 if (!MINI_WINDOW_P (w) && scroll_on_clipped_lines)
|
|
|
4830 {
|
|
|
4831 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
4832
|
|
|
4833 if (point >= (dl->bufpos + dl->offset)
|
|
|
4834 && point <= (dl->end_bufpos + dl->offset))
|
|
173
|
4835 return !dl->clip;
|
|
0
|
4836 else
|
|
|
4837 return 1;
|
|
|
4838 }
|
|
|
4839 else
|
|
|
4840 return 1;
|
|
|
4841 }
|
|
|
4842 else
|
|
|
4843 return 0;
|
|
|
4844 }
|
|
|
4845 else
|
|
|
4846 return 0;
|
|
|
4847 }
|
|
|
4848
|
|
|
4849 /* Return pixel position the middle of the window, not including the
|
|
|
4850 modeline and any potential horizontal scrollbar. */
|
|
|
4851
|
|
|
4852 int
|
|
|
4853 window_half_pixpos (struct window *w)
|
|
|
4854 {
|
|
173
|
4855 return WINDOW_TEXT_TOP (w) + (WINDOW_TEXT_HEIGHT (w) >> 1);
|
|
0
|
4856 }
|
|
|
4857
|
|
|
4858 /* Return the display line which is currently in the middle of the
|
|
|
4859 window W for display lines TYPE. */
|
|
|
4860
|
|
|
4861 int
|
|
|
4862 line_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
4863 {
|
|
|
4864 display_line_dynarr *dla;
|
|
|
4865 int half;
|
|
|
4866 int elt;
|
|
|
4867 int first_elt = (MINI_WINDOW_P (w) ? 0 : 1);
|
|
|
4868
|
|
|
4869 if (type == CMOTION_DISP)
|
|
|
4870 regenerate_window (w, start, point, type);
|
|
|
4871
|
|
|
4872 dla = window_display_lines (w, type);
|
|
|
4873 half = window_half_pixpos (w);
|
|
|
4874
|
|
|
4875 for (elt = first_elt; elt < Dynarr_length (dla); elt++)
|
|
|
4876 {
|
|
|
4877 struct display_line *dl = Dynarr_atp (dla, elt);
|
|
|
4878 int line_bot = dl->ypos + dl->descent;
|
|
|
4879
|
|
|
4880 if (line_bot > half)
|
|
|
4881 return elt;
|
|
|
4882 }
|
|
|
4883
|
|
|
4884 /* We may not have a line at the middle if the end of the buffer is
|
|
|
4885 being displayed. */
|
|
|
4886 return -1;
|
|
|
4887 }
|
|
|
4888
|
|
|
4889 /* Return a value for point that would place it at the beginning of
|
|
|
4890 the line which is in the middle of the window. */
|
|
|
4891
|
|
|
4892 Bufpos
|
|
|
4893 point_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
4894 {
|
|
|
4895 /* line_at_center will regenerate the display structures, if necessary. */
|
|
|
4896 int line = line_at_center (w, type, start, point);
|
|
|
4897
|
|
|
4898 if (line == -1)
|
|
|
4899 return BUF_ZV (XBUFFER (w->buffer));
|
|
|
4900 else
|
|
|
4901 {
|
|
|
4902 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
4903 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
4904
|
|
|
4905 return dl->bufpos;
|
|
|
4906 }
|
|
|
4907 }
|
|
|
4908
|
|
|
4909 /* For a given window, ensure that the current visual representation
|
|
|
4910 is accurate. */
|
|
|
4911
|
|
|
4912 static void
|
|
|
4913 redisplay_window (Lisp_Object window, int skip_selected)
|
|
|
4914 {
|
|
|
4915 struct window *w = XWINDOW (window);
|
|
|
4916 struct frame *f = XFRAME (w->frame);
|
|
|
4917 struct device *d = XDEVICE (f->device);
|
|
|
4918 Lisp_Object old_buffer = w->buffer;
|
|
276
|
4919 Lisp_Object the_buffer = w->buffer;
|
|
0
|
4920 struct buffer *b;
|
|
|
4921 int echo_active = 0;
|
|
|
4922 int startp = 1;
|
|
|
4923 int pointm;
|
|
276
|
4924 int old_startp = 1;
|
|
|
4925 int old_pointm = 1;
|
|
151
|
4926 int selected_in_its_frame;
|
|
|
4927 int selected_globally;
|
|
0
|
4928 int skip_output = 0;
|
|
|
4929 int truncation_changed;
|
|
|
4930 int inactive_minibuffer =
|
|
|
4931 (MINI_WINDOW_P (w) &&
|
|
|
4932 (f != device_selected_frame (d)) &&
|
|
|
4933 !is_surrogate_for_selected_frame (f));
|
|
|
4934
|
|
|
4935 /* #### In the new world this function actually does a bunch of
|
|
|
4936 optimizations such as buffer-based scrolling, but none of that is
|
|
|
4937 implemented yet. */
|
|
|
4938
|
|
|
4939 /* If this is a combination window, do its children; that's all.
|
|
|
4940 The selected window is always a leaf so we don't check for
|
|
|
4941 skip_selected here. */
|
|
|
4942 if (!NILP (w->vchild))
|
|
|
4943 {
|
|
|
4944 redisplay_windows (w->vchild, skip_selected);
|
|
|
4945 return;
|
|
|
4946 }
|
|
|
4947 if (!NILP (w->hchild))
|
|
|
4948 {
|
|
|
4949 redisplay_windows (w->hchild, skip_selected);
|
|
|
4950 return;
|
|
|
4951 }
|
|
|
4952
|
|
|
4953 /* Is this window the selected window on its frame? */
|
|
151
|
4954 selected_in_its_frame = (w == XWINDOW (FRAME_SELECTED_WINDOW (f)));
|
|
|
4955 selected_globally =
|
|
|
4956 selected_in_its_frame &&
|
|
|
4957 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
4958 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d &&
|
|
|
4959 XFRAME(DEVICE_SELECTED_FRAME(d)) == f;
|
|
|
4960 if (skip_selected && selected_in_its_frame)
|
|
0
|
4961 return;
|
|
|
4962
|
|
|
4963 /* It is possible that the window is not fully initialized yet. */
|
|
|
4964 if (NILP (w->buffer))
|
|
|
4965 return;
|
|
|
4966
|
|
|
4967 if (MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
4968 {
|
|
276
|
4969 w->buffer = the_buffer = Vecho_area_buffer;
|
|
0
|
4970 echo_active = 1;
|
|
|
4971 }
|
|
|
4972
|
|
|
4973 b = XBUFFER (w->buffer);
|
|
|
4974
|
|
|
4975 if (echo_active)
|
|
276
|
4976 {
|
|
|
4977 old_pointm = selected_globally
|
|
|
4978 ? BUF_PT (b)
|
|
|
4979 : marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4980 pointm = 1;
|
|
|
4981 }
|
|
0
|
4982 else
|
|
|
4983 {
|
|
151
|
4984 if (selected_globally)
|
|
0
|
4985 {
|
|
|
4986 pointm = BUF_PT (b);
|
|
|
4987 }
|
|
|
4988 else
|
|
|
4989 {
|
|
|
4990 pointm = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4991
|
|
|
4992 if (pointm < BUF_BEGV (b))
|
|
|
4993 pointm = BUF_BEGV (b);
|
|
|
4994 else if (pointm > BUF_ZV (b))
|
|
|
4995 pointm = BUF_ZV (b);
|
|
|
4996 }
|
|
|
4997 }
|
|
276
|
4998 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm), the_buffer);
|
|
0
|
4999
|
|
412
|
5000 /* If the buffer has changed we have to invalid all of our face
|
|
0
|
5001 cache elements. */
|
|
|
5002 if ((!echo_active && b != window_display_buffer (w))
|
|
|
5003 || !Dynarr_length (w->face_cachels)
|
|
|
5004 || f->faces_changed)
|
|
|
5005 reset_face_cachels (w);
|
|
|
5006 else
|
|
|
5007 mark_face_cachels_as_not_updated (w);
|
|
|
5008
|
|
412
|
5009 /* Ditto the glyph cache elements. */
|
|
0
|
5010 if ((!echo_active && b != window_display_buffer (w))
|
|
412
|
5011 || !Dynarr_length (w->glyph_cachels)
|
|
|
5012 || f->glyphs_changed)
|
|
0
|
5013 reset_glyph_cachels (w);
|
|
|
5014 else
|
|
|
5015 mark_glyph_cachels_as_not_updated (w);
|
|
|
5016
|
|
|
5017 /* If the marker's buffer is not the window's buffer, then we need
|
|
|
5018 to find a new starting position. */
|
|
|
5019 if (!MINI_WINDOW_P (w)
|
|
|
5020 && !EQ (Fmarker_buffer (w->start[CURRENT_DISP]), w->buffer))
|
|
|
5021 {
|
|
185
|
5022 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
5023
|
|
|
5024 goto regeneration_done;
|
|
|
5025 }
|
|
|
5026
|
|
|
5027 if (echo_active)
|
|
276
|
5028 {
|
|
|
5029 old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
5030 startp = 1;
|
|
|
5031 }
|
|
0
|
5032 else
|
|
|
5033 {
|
|
|
5034 startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
5035 if (startp < BUF_BEGV (b))
|
|
|
5036 startp = BUF_BEGV (b);
|
|
|
5037 else if (startp > BUF_ZV (b))
|
|
|
5038 startp = BUF_ZV (b);
|
|
|
5039 }
|
|
276
|
5040 Fset_marker (w->start[DESIRED_DISP], make_int (startp), the_buffer);
|
|
0
|
5041
|
|
|
5042 truncation_changed = (find_window_mirror (w)->truncate_win !=
|
|
|
5043 window_truncation_on (w));
|
|
|
5044
|
|
|
5045 /* If w->force_start is set, then some function set w->start and we
|
|
|
5046 should display from there and change point, if necessary, to
|
|
|
5047 ensure that it is visible. */
|
|
|
5048 if (w->force_start || inactive_minibuffer)
|
|
|
5049 {
|
|
|
5050 w->force_start = 0;
|
|
|
5051 w->last_modified[DESIRED_DISP] = Qzero;
|
|
|
5052 w->last_facechange[DESIRED_DISP] = Qzero;
|
|
|
5053
|
|
|
5054 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5055
|
|
|
5056 if (!point_visible (w, pointm, DESIRED_DISP) && !inactive_minibuffer)
|
|
|
5057 {
|
|
|
5058 pointm = point_at_center (w, DESIRED_DISP, 0, 0);
|
|
|
5059
|
|
151
|
5060 if (selected_globally)
|
|
0
|
5061 BUF_SET_PT (b, pointm);
|
|
|
5062
|
|
|
5063 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm),
|
|
276
|
5064 the_buffer);
|
|
0
|
5065
|
|
380
|
5066 /* #### BUFU amounts of overkill just to get the cursor
|
|
0
|
5067 location marked properly. FIX ME FIX ME FIX ME */
|
|
|
5068 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5069 }
|
|
|
5070
|
|
|
5071 goto regeneration_done;
|
|
|
5072 }
|
|
|
5073
|
|
|
5074 /* If nothing has changed since the last redisplay, then we just
|
|
|
5075 need to make sure that point is still visible. */
|
|
|
5076 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
5077 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)
|
|
|
5078 && pointm >= startp
|
|
|
5079 /* This check is to make sure we restore the minibuffer after a
|
|
|
5080 temporary change to the echo area. */
|
|
|
5081 && !(MINI_WINDOW_P (w) && f->buffers_changed)
|
|
|
5082 && !f->frame_changed
|
|
373
|
5083 && !truncation_changed
|
|
|
5084 /* check whether start is really at the begining of a line GE */
|
|
|
5085 && (!w->start_at_line_beg || beginning_of_line_p (b, startp))
|
|
|
5086 )
|
|
0
|
5087 {
|
|
|
5088 /* Check if the cursor has actually moved. */
|
|
|
5089 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5090 && pointm == marker_position (w->last_point[CURRENT_DISP])
|
|
151
|
5091 && selected_globally
|
|
0
|
5092 && !w->windows_changed
|
|
|
5093 && !f->clip_changed
|
|
|
5094 && !f->extents_changed
|
|
|
5095 && !f->faces_changed
|
|
269
|
5096 && !f->glyphs_changed
|
|
384
|
5097 && !f->subwindows_changed
|
|
0
|
5098 && !f->point_changed
|
|
|
5099 && !f->windows_structure_changed)
|
|
|
5100 {
|
|
|
5101 /* If not, we're done. */
|
|
|
5102 if (f->modeline_changed)
|
|
|
5103 regenerate_modeline (w);
|
|
|
5104
|
|
|
5105 skip_output = 1;
|
|
|
5106 goto regeneration_done;
|
|
|
5107 }
|
|
|
5108 else
|
|
|
5109 {
|
|
|
5110 /* If the new point is visible in the redisplay structures,
|
|
|
5111 then let the output update routines handle it, otherwise
|
|
|
5112 do things the hard way. */
|
|
|
5113 if (!w->windows_changed
|
|
|
5114 && !f->clip_changed
|
|
|
5115 && !f->extents_changed
|
|
|
5116 && !f->faces_changed
|
|
269
|
5117 && !f->glyphs_changed
|
|
384
|
5118 && !f->subwindows_changed
|
|
0
|
5119 && !f->windows_structure_changed)
|
|
|
5120 {
|
|
|
5121 if (point_visible (w, pointm, CURRENT_DISP)
|
|
|
5122 && w->last_point_x[CURRENT_DISP] != -1
|
|
|
5123 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
5124 {
|
|
|
5125 if (redisplay_move_cursor (w, pointm, FRAME_TTY_P (f)))
|
|
|
5126 {
|
|
|
5127 /* Always regenerate in case it is displaying
|
|
|
5128 the current line or column. */
|
|
|
5129 regenerate_modeline (w);
|
|
|
5130
|
|
|
5131 skip_output = 1;
|
|
|
5132 goto regeneration_done;
|
|
|
5133 }
|
|
|
5134 }
|
|
151
|
5135 else if (!selected_in_its_frame && !f->point_changed)
|
|
0
|
5136 {
|
|
|
5137 if (f->modeline_changed)
|
|
|
5138 regenerate_modeline (w);
|
|
|
5139
|
|
|
5140 skip_output = 1;
|
|
|
5141 goto regeneration_done;
|
|
|
5142 }
|
|
|
5143 }
|
|
|
5144
|
|
|
5145 /* If we weren't able to take the shortcut method, then use
|
|
|
5146 the brute force method. */
|
|
|
5147 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5148
|
|
|
5149 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
5150 goto regeneration_done;
|
|
|
5151 }
|
|
|
5152 }
|
|
|
5153
|
|
|
5154 /* Check if the starting point is no longer at the beginning of a
|
|
|
5155 line, in which case find a new starting point. We also recenter
|
|
|
5156 if our start position is equal to point-max. Otherwise we'll end
|
|
|
5157 up with a blank window. */
|
|
|
5158 else if (((w->start_at_line_beg || MINI_WINDOW_P (w))
|
|
|
5159 && !(startp == BUF_BEGV (b)
|
|
|
5160 || BUF_FETCH_CHAR (b, startp - 1) == '\n'))
|
|
|
5161 || (pointm == startp &&
|
|
|
5162 EQ (Fmarker_buffer (w->last_start[CURRENT_DISP]), w->buffer) &&
|
|
|
5163 startp < marker_position (w->last_start[CURRENT_DISP]))
|
|
|
5164 || (startp == BUF_ZV (b)))
|
|
|
5165 {
|
|
185
|
5166 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
5167
|
|
|
5168 goto regeneration_done;
|
|
|
5169 }
|
|
|
5170 /* See if we can update the data structures locally based on
|
|
|
5171 knowledge of what changed in the buffer. */
|
|
|
5172 else if (!w->windows_changed
|
|
|
5173 && !f->clip_changed
|
|
|
5174 && !f->faces_changed
|
|
269
|
5175 && !f->glyphs_changed
|
|
384
|
5176 && !f->subwindows_changed
|
|
0
|
5177 && !f->windows_structure_changed
|
|
|
5178 && !f->frame_changed
|
|
|
5179 && !truncation_changed
|
|
|
5180 && pointm >= startp
|
|
|
5181 && regenerate_window_incrementally (w, startp, pointm))
|
|
|
5182 {
|
|
|
5183 if (f->modeline_changed
|
|
|
5184 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b)
|
|
|
5185 || XINT (w->last_facechange[CURRENT_DISP]) < BUF_FACECHANGE (b))
|
|
|
5186 regenerate_modeline (w);
|
|
|
5187
|
|
|
5188 skip_output = 1;
|
|
|
5189 goto regeneration_done;
|
|
|
5190 }
|
|
|
5191 /* #### This is where a check for structure based scrolling would go. */
|
|
|
5192 /* If all else fails, try just regenerating and see what happens. */
|
|
|
5193 else
|
|
|
5194 {
|
|
|
5195 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5196
|
|
|
5197 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
5198 goto regeneration_done;
|
|
|
5199 }
|
|
|
5200
|
|
|
5201 /* We still haven't gotten the window regenerated with point
|
|
|
5202 visible. Next we try scrolling a little and see if point comes
|
|
|
5203 back onto the screen. */
|
|
274
|
5204 if (scroll_step > 0)
|
|
0
|
5205 {
|
|
195
|
5206 int scrolled = scroll_conservatively;
|
|
|
5207 for (; scrolled >= 0; scrolled -= scroll_step)
|
|
|
5208 {
|
|
|
5209 startp = vmotion (w, startp,
|
|
|
5210 (pointm < startp) ? -scroll_step : scroll_step, 0);
|
|
|
5211 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5212
|
|
|
5213 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
5214 goto regeneration_done;
|
|
|
5215 }
|
|
0
|
5216 }
|
|
|
5217
|
|
|
5218 /* We still haven't managed to get the screen drawn with point on
|
|
|
5219 the screen, so just center it and be done with it. */
|
|
185
|
5220 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
5221
|
|
|
5222
|
|
|
5223 regeneration_done:
|
|
|
5224
|
|
|
5225 /* If the window's frame is changed then reset the current display
|
|
|
5226 lines in order to force a full repaint. */
|
|
|
5227 if (f->frame_changed)
|
|
|
5228 {
|
|
|
5229 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
|
|
|
5230
|
|
|
5231 Dynarr_reset (cla);
|
|
|
5232 }
|
|
|
5233
|
|
|
5234 /* Must do this before calling redisplay_output_window because it
|
|
|
5235 sets some markers on the window. */
|
|
276
|
5236 if (echo_active)
|
|
|
5237 {
|
|
|
5238 w->buffer = old_buffer;
|
|
|
5239 Fset_marker (w->pointm[DESIRED_DISP], make_int (old_pointm), old_buffer);
|
|
|
5240 Fset_marker (w->start[DESIRED_DISP], make_int (old_startp), old_buffer);
|
|
|
5241 }
|
|
0
|
5242
|
|
|
5243 /* These also have to be set before calling redisplay_output_window
|
|
|
5244 since it sets the CURRENT_DISP values based on them. */
|
|
|
5245 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
5246 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
5247 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
5248 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
5249
|
|
|
5250 if (!skip_output)
|
|
|
5251 {
|
|
|
5252 Bufpos start = marker_position (w->start[DESIRED_DISP]);
|
|
|
5253 Bufpos end = (w->window_end_pos[DESIRED_DISP] == -1
|
|
|
5254 ? BUF_ZV (b)
|
|
|
5255 : BUF_Z (b) - w->window_end_pos[DESIRED_DISP] - 1);
|
|
398
|
5256 /* Don't pollute the cache if not sure if we are correct */
|
|
|
5257 if (w->start_at_line_beg)
|
|
|
5258 update_line_start_cache (w, start, end, pointm, 1);
|
|
0
|
5259 redisplay_output_window (w);
|
|
249
|
5260 /*
|
|
|
5261 * If we just displayed the echo area, the line start cache is
|
|
380
|
5262 * no longer valid, because the minibuffer window is associated
|
|
249
|
5263 * with the window now.
|
|
|
5264 */
|
|
|
5265 if (echo_active)
|
|
|
5266 w->line_cache_last_updated = make_int (-1);
|
|
0
|
5267 }
|
|
|
5268
|
|
|
5269 /* #### This should be dependent on face changes and will need to be
|
|
|
5270 somewhere else once tty updates occur on a per-frame basis. */
|
|
|
5271 mark_face_cachels_as_clean (w);
|
|
|
5272
|
|
|
5273 w->windows_changed = 0;
|
|
|
5274 }
|
|
|
5275
|
|
|
5276 /* Call buffer_reset_changes for all buffers present in any window
|
|
|
5277 currently visible in all frames on all devices. #### There has to
|
|
|
5278 be a better way to do this. */
|
|
|
5279
|
|
|
5280 static int
|
|
|
5281 reset_buffer_changes_mapfun (struct window *w, void *ignored_closure)
|
|
|
5282 {
|
|
|
5283 buffer_reset_changes (XBUFFER (w->buffer));
|
|
|
5284 return 0;
|
|
|
5285 }
|
|
|
5286
|
|
|
5287 static void
|
|
|
5288 reset_buffer_changes (void)
|
|
|
5289 {
|
|
|
5290 Lisp_Object frmcons, devcons, concons;
|
|
|
5291
|
|
|
5292 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
5293 {
|
|
|
5294 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
5295
|
|
108
|
5296 if (FRAME_REPAINT_P (f))
|
|
0
|
5297 map_windows (f, reset_buffer_changes_mapfun, 0);
|
|
|
5298 }
|
|
|
5299 }
|
|
|
5300
|
|
|
5301 /* Ensure that all windows underneath the given window in the window
|
|
|
5302 hierarchy are correctly displayed. */
|
|
|
5303
|
|
|
5304 static void
|
|
|
5305 redisplay_windows (Lisp_Object window, int skip_selected)
|
|
|
5306 {
|
|
|
5307 for (; !NILP (window) ; window = XWINDOW (window)->next)
|
|
|
5308 {
|
|
|
5309 redisplay_window (window, skip_selected);
|
|
|
5310 }
|
|
|
5311 }
|
|
|
5312
|
|
|
5313 static int
|
|
|
5314 call_redisplay_end_triggers (struct window *w, void *closure)
|
|
|
5315 {
|
|
|
5316 Bufpos lrpos = w->last_redisplay_pos;
|
|
|
5317 w->last_redisplay_pos = 0;
|
|
|
5318 if (!NILP (w->buffer)
|
|
|
5319 && !NILP (w->redisplay_end_trigger)
|
|
|
5320 && lrpos > 0)
|
|
|
5321 {
|
|
|
5322 Bufpos pos;
|
|
|
5323
|
|
|
5324 if (MARKERP (w->redisplay_end_trigger)
|
|
|
5325 && XMARKER (w->redisplay_end_trigger)->buffer != 0)
|
|
|
5326 pos = marker_position (w->redisplay_end_trigger);
|
|
|
5327 else if (INTP (w->redisplay_end_trigger))
|
|
|
5328 pos = XINT (w->redisplay_end_trigger);
|
|
|
5329 else
|
|
|
5330 {
|
|
|
5331 w->redisplay_end_trigger = Qnil;
|
|
|
5332 return 0;
|
|
|
5333 }
|
|
|
5334
|
|
|
5335 if (lrpos >= pos)
|
|
|
5336 {
|
|
272
|
5337 Lisp_Object window;
|
|
0
|
5338 XSETWINDOW (window, w);
|
|
|
5339 va_run_hook_with_args_in_buffer (XBUFFER (w->buffer),
|
|
|
5340 Qredisplay_end_trigger_functions,
|
|
|
5341 2, window,
|
|
|
5342 w->redisplay_end_trigger);
|
|
|
5343 w->redisplay_end_trigger = Qnil;
|
|
|
5344 }
|
|
|
5345 }
|
|
|
5346
|
|
|
5347 return 0;
|
|
|
5348 }
|
|
|
5349
|
|
|
5350 /* Ensure that all windows on the given frame are correctly displayed. */
|
|
|
5351
|
|
412
|
5352 static int
|
|
0
|
5353 redisplay_frame (struct frame *f, int preemption_check)
|
|
|
5354 {
|
|
|
5355 struct device *d = XDEVICE (f->device);
|
|
|
5356
|
|
|
5357 if (preemption_check)
|
|
|
5358 {
|
|
|
5359 /* The preemption check itself takes a lot of time,
|
|
|
5360 so normally don't do it here. We do it if called
|
|
|
5361 from Lisp, though (`redisplay-frame'). */
|
|
|
5362 int preempted;
|
|
|
5363
|
|
|
5364 REDISPLAY_PREEMPTION_CHECK;
|
|
|
5365 if (preempted)
|
|
|
5366 return 1;
|
|
|
5367 }
|
|
|
5368
|
|
|
5369 /* Before we put a hold on frame size changes, attempt to process
|
|
|
5370 any which are already pending. */
|
|
|
5371 if (f->size_change_pending)
|
|
|
5372 change_frame_size (f, f->new_height, f->new_width, 0);
|
|
|
5373
|
|
282
|
5374 /* If frame size might need to be changed, due to changed size
|
|
380
|
5375 of toolbars, scrollbars etc, change it now */
|
|
282
|
5376 if (f->size_slipped)
|
|
|
5377 {
|
|
|
5378 adjust_frame_size (f);
|
|
|
5379 assert (!f->size_slipped);
|
|
|
5380 }
|
|
380
|
5381
|
|
0
|
5382 /* The menubar, toolbar, and icon updates must be done before
|
|
|
5383 hold_frame_size_changes is called and we are officially
|
|
|
5384 'in_display'. They may eval lisp code which may call Fsignal.
|
|
|
5385 If in_display is set Fsignal will abort. */
|
|
|
5386
|
|
|
5387 #ifdef HAVE_MENUBARS
|
|
|
5388 /* Update the menubar. It is done first since it could change
|
|
|
5389 the menubar's visibility. This way we avoid having flashing
|
|
|
5390 caused by an Expose event generated by the visibility change
|
|
|
5391 being handled. */
|
|
|
5392 update_frame_menubars (f);
|
|
183
|
5393 #endif /* HAVE_MENUBARS */
|
|
412
|
5394 /* widgets are similar to menus in that they can call lisp to
|
|
|
5395 determine activation etc. Therefore update them before we get
|
|
|
5396 into redisplay. This is primarily for connected widgets such as
|
|
|
5397 radio buttons. */
|
|
|
5398 update_frame_subwindows (f);
|
|
0
|
5399 #ifdef HAVE_TOOLBARS
|
|
|
5400 /* Update the toolbars. */
|
|
|
5401 update_frame_toolbars (f);
|
|
183
|
5402 #endif /* HAVE_TOOLBARS */
|
|
400
|
5403
|
|
0
|
5404 hold_frame_size_changes ();
|
|
|
5405
|
|
|
5406 /* ----------------- BEGIN CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
5407 /* Within this section, we are defenseless and assume that the
|
|
|
5408 following cannot happen:
|
|
|
5409
|
|
|
5410 1) garbage collection
|
|
|
5411 2) Lisp code evaluation
|
|
|
5412 3) frame size changes
|
|
|
5413
|
|
|
5414 We ensure (3) by calling hold_frame_size_changes(), which
|
|
|
5415 will cause any pending frame size changes to get put on hold
|
|
|
5416 till after the end of the critical section. (1) follows
|
|
|
5417 automatically if (2) is met. #### Unfortunately, there are
|
|
|
5418 some places where Lisp code can be called within this section.
|
|
|
5419 We need to remove them.
|
|
|
5420
|
|
|
5421 If Fsignal() is called during this critical section, we
|
|
|
5422 will abort().
|
|
|
5423
|
|
|
5424 If garbage collection is called during this critical section,
|
|
|
5425 we simply return. #### We should abort instead.
|
|
|
5426
|
|
|
5427 #### If a frame-size change does occur we should probably
|
|
|
5428 actually be preempting redisplay. */
|
|
|
5429
|
|
412
|
5430 /* If we clear the frame we have to force its contents to be redrawn. */
|
|
|
5431 if (f->clear)
|
|
|
5432 f->frame_changed = 1;
|
|
404
|
5433
|
|
0
|
5434 /* Erase the frame before outputting its contents. */
|
|
|
5435 if (f->clear)
|
|
384
|
5436 {
|
|
412
|
5437 DEVMETH (d, clear_frame, (f));
|
|
|
5438 }
|
|
|
5439
|
|
|
5440 /* invalidate the subwindow cache. we are going to reuse the glyphs
|
|
|
5441 flag here to cause subwindows to get instantiated. This is
|
|
|
5442 because subwindows changed is less strict - dealing with things
|
|
|
5443 like the clicked state of button. */
|
|
|
5444 if (!Dynarr_length (f->subwindow_cachels)
|
|
|
5445 || f->glyphs_changed
|
|
|
5446 || f->frame_changed)
|
|
|
5447 reset_subwindow_cachels (f);
|
|
|
5448 else
|
|
|
5449 mark_subwindow_cachels_as_not_updated (f);
|
|
384
|
5450
|
|
0
|
5451 /* Do the selected window first. */
|
|
|
5452 redisplay_window (FRAME_SELECTED_WINDOW (f), 0);
|
|
|
5453
|
|
|
5454 /* Then do the rest. */
|
|
|
5455 redisplay_windows (f->root_window, 1);
|
|
|
5456
|
|
412
|
5457 /* We now call the output_end routine for tty frames. We delay
|
|
|
5458 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
5459 encapsulation. */
|
|
|
5460 if (FRAME_TTY_P (f))
|
|
|
5461 DEVMETH (d, output_end, (d));
|
|
0
|
5462
|
|
|
5463 update_frame_title (f);
|
|
|
5464
|
|
412
|
5465 f->buffers_changed = 0;
|
|
|
5466 f->clip_changed = 0;
|
|
|
5467 f->extents_changed = 0;
|
|
|
5468 f->faces_changed = 0;
|
|
|
5469 f->frame_changed = 0;
|
|
|
5470 f->glyphs_changed = 0;
|
|
|
5471 f->subwindows_changed = 0;
|
|
|
5472 f->icon_changed = 0;
|
|
|
5473 f->menubar_changed = 0;
|
|
|
5474 f->modeline_changed = 0;
|
|
|
5475 f->point_changed = 0;
|
|
|
5476 f->toolbar_changed = 0;
|
|
|
5477 f->windows_changed = 0;
|
|
|
5478 f->windows_structure_changed = 0;
|
|
0
|
5479 f->window_face_cache_reset = 0;
|
|
217
|
5480 f->echo_area_garbaged = 0;
|
|
412
|
5481
|
|
0
|
5482 f->clear = 0;
|
|
|
5483
|
|
|
5484 if (!f->size_change_pending)
|
|
|
5485 f->size_changed = 0;
|
|
|
5486
|
|
|
5487 /* ----------------- END CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
5488
|
|
|
5489 /* Allow frame size changes to occur again.
|
|
|
5490
|
|
|
5491 #### what happens if changes to other frames happen? */
|
|
|
5492 unhold_one_frame_size_changes (f);
|
|
|
5493
|
|
|
5494 map_windows (f, call_redisplay_end_triggers, 0);
|
|
|
5495 return 0;
|
|
|
5496 }
|
|
|
5497
|
|
412
|
5498 /* Ensure that all frames on the given device are correctly displayed. */
|
|
0
|
5499
|
|
|
5500 static int
|
|
412
|
5501 redisplay_device (struct device *d)
|
|
0
|
5502 {
|
|
|
5503 Lisp_Object frame, frmcons;
|
|
|
5504 int preempted = 0;
|
|
|
5505 int size_change_failed = 0;
|
|
|
5506 struct frame *f;
|
|
|
5507
|
|
|
5508 if (DEVICE_STREAM_P (d)) /* nothing to do */
|
|
|
5509 return 0;
|
|
|
5510
|
|
|
5511 /* It is possible that redisplay has been called before the
|
|
|
5512 device is fully initialized. If so then continue with the
|
|
|
5513 next device. */
|
|
|
5514 if (NILP (DEVICE_SELECTED_FRAME (d)))
|
|
|
5515 return 0;
|
|
|
5516
|
|
|
5517 REDISPLAY_PREEMPTION_CHECK;
|
|
|
5518 if (preempted)
|
|
|
5519 return 1;
|
|
|
5520
|
|
|
5521 /* Always do the selected frame first. */
|
|
|
5522 frame = DEVICE_SELECTED_FRAME (d);
|
|
183
|
5523
|
|
0
|
5524 f = XFRAME (frame);
|
|
|
5525
|
|
|
5526 if (f->icon_changed || f->windows_changed)
|
|
|
5527 update_frame_icon (f);
|
|
|
5528
|
|
108
|
5529 if (FRAME_REPAINT_P (f))
|
|
0
|
5530 {
|
|
412
|
5531 if (f->buffers_changed || f->clip_changed || f->extents_changed ||
|
|
|
5532 f->faces_changed || f->frame_changed || f->menubar_changed ||
|
|
|
5533 f->modeline_changed || f->point_changed || f->size_changed ||
|
|
|
5534 f->toolbar_changed || f->windows_changed || f->size_slipped ||
|
|
|
5535 f->windows_structure_changed || f->glyphs_changed || f->subwindows_changed)
|
|
0
|
5536 {
|
|
|
5537 preempted = redisplay_frame (f, 0);
|
|
|
5538 }
|
|
|
5539
|
|
|
5540 if (preempted)
|
|
|
5541 return 1;
|
|
|
5542
|
|
|
5543 /* If the frame redisplay did not get preempted, then this flag
|
|
|
5544 should have gotten set to 0. It might be possible for that
|
|
|
5545 not to happen if a size change event were to occur at an odd
|
|
|
5546 time. To make sure we don't miss anything we simply don't
|
|
|
5547 reset the top level flags until the condition ends up being
|
|
|
5548 in the right state. */
|
|
|
5549 if (f->size_changed)
|
|
|
5550 size_change_failed = 1;
|
|
|
5551 }
|
|
|
5552
|
|
|
5553 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
5554 {
|
|
|
5555 f = XFRAME (XCAR (frmcons));
|
|
|
5556
|
|
|
5557 if (f == XFRAME (DEVICE_SELECTED_FRAME (d)))
|
|
|
5558 continue;
|
|
|
5559
|
|
|
5560 if (f->icon_changed || f->windows_changed)
|
|
|
5561 update_frame_icon (f);
|
|
|
5562
|
|
108
|
5563 if (FRAME_REPAINT_P (f))
|
|
0
|
5564 {
|
|
412
|
5565 if (f->buffers_changed || f->clip_changed || f->extents_changed ||
|
|
|
5566 f->faces_changed || f->frame_changed || f->menubar_changed ||
|
|
|
5567 f->modeline_changed || f->point_changed || f->size_changed ||
|
|
|
5568 f->toolbar_changed || f->windows_changed ||
|
|
|
5569 f->windows_structure_changed ||
|
|
|
5570 f->glyphs_changed || f->subwindows_changed)
|
|
0
|
5571 {
|
|
|
5572 preempted = redisplay_frame (f, 0);
|
|
|
5573 }
|
|
|
5574
|
|
|
5575 if (preempted)
|
|
|
5576 return 1;
|
|
|
5577
|
|
|
5578 if (f->size_change_pending)
|
|
|
5579 size_change_failed = 1;
|
|
|
5580 }
|
|
|
5581 }
|
|
|
5582
|
|
|
5583 /* If we get here then we redisplayed all of our frames without
|
|
|
5584 getting preempted so mark ourselves as clean. */
|
|
412
|
5585 d->buffers_changed = 0;
|
|
|
5586 d->clip_changed = 0;
|
|
|
5587 d->extents_changed = 0;
|
|
|
5588 d->faces_changed = 0;
|
|
|
5589 d->frame_changed = 0;
|
|
|
5590 d->glyphs_changed = 0;
|
|
|
5591 d->subwindows_changed = 0;
|
|
|
5592 d->icon_changed = 0;
|
|
|
5593 d->menubar_changed = 0;
|
|
|
5594 d->modeline_changed = 0;
|
|
|
5595 d->point_changed = 0;
|
|
|
5596 d->toolbar_changed = 0;
|
|
|
5597 d->windows_changed = 0;
|
|
|
5598 d->windows_structure_changed = 0;
|
|
0
|
5599
|
|
|
5600 if (!size_change_failed)
|
|
|
5601 d->size_changed = 0;
|
|
|
5602
|
|
|
5603 return 0;
|
|
|
5604 }
|
|
|
5605
|
|
|
5606 static Lisp_Object
|
|
|
5607 restore_profiling_redisplay_flag (Lisp_Object val)
|
|
|
5608 {
|
|
|
5609 profiling_redisplay_flag = XINT (val);
|
|
|
5610 return Qnil;
|
|
|
5611 }
|
|
|
5612
|
|
|
5613 /* Ensure that all windows on all frames on all devices are displaying
|
|
|
5614 the current contents of their respective buffers. */
|
|
|
5615
|
|
|
5616 static void
|
|
|
5617 redisplay_without_hooks (void)
|
|
|
5618 {
|
|
|
5619 Lisp_Object devcons, concons;
|
|
|
5620 int size_change_failed = 0;
|
|
|
5621 int count = specpdl_depth ();
|
|
|
5622
|
|
|
5623 if (profiling_active)
|
|
|
5624 {
|
|
|
5625 record_unwind_protect (restore_profiling_redisplay_flag,
|
|
|
5626 make_int (profiling_redisplay_flag));
|
|
|
5627 profiling_redisplay_flag = 1;
|
|
|
5628 }
|
|
|
5629
|
|
|
5630 if (asynch_device_change_pending)
|
|
|
5631 handle_asynch_device_change ();
|
|
|
5632
|
|
412
|
5633 if (!buffers_changed && !clip_changed && !extents_changed &&
|
|
|
5634 !faces_changed && !frame_changed && !icon_changed &&
|
|
|
5635 !menubar_changed && !modeline_changed && !point_changed &&
|
|
|
5636 !size_changed && !toolbar_changed && !windows_changed &&
|
|
|
5637 !glyphs_changed && !subwindows_changed &&
|
|
|
5638 !windows_structure_changed && !disable_preemption &&
|
|
|
5639 preemption_count < max_preempts)
|
|
0
|
5640 goto done;
|
|
|
5641
|
|
|
5642 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
5643 {
|
|
|
5644 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
5645 int preempted;
|
|
|
5646
|
|
412
|
5647 if (d->buffers_changed || d->clip_changed || d->extents_changed ||
|
|
|
5648 d->faces_changed || d->frame_changed || d->icon_changed ||
|
|
|
5649 d->menubar_changed || d->modeline_changed || d->point_changed ||
|
|
|
5650 d->size_changed || d->toolbar_changed || d->windows_changed ||
|
|
|
5651 d->windows_structure_changed ||
|
|
|
5652 d->glyphs_changed || d->subwindows_changed)
|
|
|
5653 {
|
|
|
5654 preempted = redisplay_device (d);
|
|
0
|
5655
|
|
|
5656 if (preempted)
|
|
|
5657 {
|
|
|
5658 preemption_count++;
|
|
|
5659 RESET_CHANGED_SET_FLAGS;
|
|
|
5660 goto done;
|
|
|
5661 }
|
|
|
5662
|
|
|
5663 /* See comment in redisplay_device. */
|
|
|
5664 if (d->size_changed)
|
|
|
5665 size_change_failed = 1;
|
|
|
5666 }
|
|
|
5667 }
|
|
|
5668 preemption_count = 0;
|
|
|
5669
|
|
|
5670 /* Mark redisplay as accurate */
|
|
412
|
5671 buffers_changed = 0;
|
|
|
5672 clip_changed = 0;
|
|
|
5673 extents_changed = 0;
|
|
|
5674 frame_changed = 0;
|
|
|
5675 glyphs_changed = 0;
|
|
|
5676 subwindows_changed = 0;
|
|
|
5677 icon_changed = 0;
|
|
|
5678 menubar_changed = 0;
|
|
|
5679 modeline_changed = 0;
|
|
|
5680 point_changed = 0;
|
|
|
5681 toolbar_changed = 0;
|
|
|
5682 windows_changed = 0;
|
|
|
5683 windows_structure_changed = 0;
|
|
0
|
5684 RESET_CHANGED_SET_FLAGS;
|
|
|
5685
|
|
|
5686 if (faces_changed)
|
|
|
5687 {
|
|
|
5688 mark_all_faces_as_clean ();
|
|
|
5689 faces_changed = 0;
|
|
|
5690 }
|
|
|
5691
|
|
|
5692 if (!size_change_failed)
|
|
|
5693 size_changed = 0;
|
|
|
5694
|
|
|
5695 reset_buffer_changes ();
|
|
|
5696
|
|
|
5697 done:
|
|
|
5698 unbind_to (count, Qnil);
|
|
|
5699 }
|
|
|
5700
|
|
|
5701 void
|
|
|
5702 redisplay (void)
|
|
|
5703 {
|
|
|
5704 if (last_display_warning_tick != display_warning_tick &&
|
|
|
5705 !inhibit_warning_display)
|
|
|
5706 {
|
|
|
5707 /* If an error occurs during this function, oh well.
|
|
|
5708 If we report another warning, we could get stuck in an
|
|
|
5709 infinite loop reporting warnings. */
|
|
|
5710 call0_trapping_errors (0, Qdisplay_warning_buffer);
|
|
|
5711 last_display_warning_tick = display_warning_tick;
|
|
|
5712 }
|
|
|
5713 /* The run_hook_trapping_errors functions are smart enough not
|
|
|
5714 to do any evalling if the hook function is empty, so there
|
|
|
5715 should not be any significant time loss. All places in the
|
|
|
5716 C code that call redisplay() are prepared to handle GCing,
|
|
|
5717 so we should be OK. */
|
|
|
5718 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
5719 run_hook_trapping_errors ("Error in pre-redisplay-hook",
|
|
|
5720 Qpre_redisplay_hook);
|
|
183
|
5721 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
5722
|
|
|
5723 redisplay_without_hooks ();
|
|
|
5724
|
|
|
5725 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
5726 run_hook_trapping_errors ("Error in post-redisplay-hook",
|
|
|
5727 Qpost_redisplay_hook);
|
|
183
|
5728 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
5729 }
|
|
|
5730
|
|
211
|
5731
|
|
267
|
5732 static char window_line_number_buf[32];
|
|
211
|
5733
|
|
|
5734 /* Efficiently determine the window line number, and return a pointer
|
|
|
5735 to its printed representation. Do this regardless of whether
|
|
|
5736 line-number-mode is on. The first line in the buffer is counted as
|
|
|
5737 1. If narrowing is in effect, the lines are counted from the
|
|
|
5738 beginning of the visible portion of the buffer. */
|
|
0
|
5739 static char *
|
|
|
5740 window_line_number (struct window *w, int type)
|
|
|
5741 {
|
|
|
5742 struct device *d = XDEVICE (XFRAME (w->frame)->device);
|
|
|
5743 struct buffer *b = XBUFFER (w->buffer);
|
|
380
|
5744 /* Be careful in the order of these tests. The first clause will
|
|
282
|
5745 fail if DEVICE_SELECTED_FRAME == Qnil (since w->frame cannot be).
|
|
380
|
5746 This can occur when the frame title is computed really early */
|
|
211
|
5747 Bufpos pos =
|
|
282
|
5748 ((EQ(DEVICE_SELECTED_FRAME(d), w->frame) &&
|
|
|
5749 (w == XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame(d)))) &&
|
|
151
|
5750 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
282
|
5751 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d )
|
|
0
|
5752 ? BUF_PT (b)
|
|
|
5753 : marker_position (w->pointm[type]));
|
|
211
|
5754 EMACS_INT line;
|
|
|
5755
|
|
|
5756 line = buffer_line_number (b, pos, 1);
|
|
|
5757
|
|
276
|
5758 long_to_string (window_line_number_buf, line + 1);
|
|
0
|
5759
|
|
173
|
5760 return window_line_number_buf;
|
|
0
|
5761 }
|
|
|
5762
|
|
211
|
5763
|
|
0
|
5764 /* Given a character representing an object in a modeline
|
|
|
5765 specification, return a string (stored into the global array
|
|
|
5766 `mode_spec_bufbyte_string') with the information that object
|
|
|
5767 represents.
|
|
|
5768
|
|
|
5769 This function is largely unchanged from previous versions of the
|
|
282
|
5770 redisplay engine.
|
|
|
5771
|
|
|
5772 Warning! This code is also used for frame titles and can be called
|
|
|
5773 very early in the device/frame update process! JV
|
|
|
5774 */
|
|
0
|
5775
|
|
|
5776 static void
|
|
|
5777 decode_mode_spec (struct window *w, Emchar spec, int type)
|
|
|
5778 {
|
|
|
5779 Lisp_Object obj = Qnil;
|
|
412
|
5780 CONST char *str = NULL;
|
|
0
|
5781 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5782
|
|
|
5783 Dynarr_reset (mode_spec_bufbyte_string);
|
|
|
5784
|
|
|
5785 switch (spec)
|
|
|
5786 {
|
|
|
5787 /* print buffer name */
|
|
|
5788 case 'b':
|
|
|
5789 obj = b->name;
|
|
|
5790 break;
|
|
|
5791
|
|
|
5792 /* print visited file name */
|
|
|
5793 case 'f':
|
|
|
5794 obj = b->filename;
|
|
|
5795 break;
|
|
|
5796
|
|
|
5797 /* print the current column */
|
|
|
5798 case 'c':
|
|
|
5799 {
|
|
298
|
5800 Bufpos pt = (w == XWINDOW (Fselected_window (Qnil)))
|
|
|
5801 ? BUF_PT (b)
|
|
|
5802 : marker_position (w->pointm[type]);
|
|
|
5803 int col = column_at_point (b, pt, 1) + !!column_number_start_at_one;
|
|
280
|
5804 char buf[32];
|
|
|
5805
|
|
276
|
5806 long_to_string (buf, col);
|
|
0
|
5807
|
|
|
5808 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
412
|
5809 (CONST Bufbyte *) buf, strlen (buf));
|
|
0
|
5810
|
|
|
5811 goto decode_mode_spec_done;
|
|
|
5812 }
|
|
70
|
5813 /* print the file coding system */
|
|
|
5814 case 'C':
|
|
284
|
5815 #ifdef FILE_CODING
|
|
70
|
5816 {
|
|
110
|
5817 Lisp_Object codesys = b->buffer_file_coding_system;
|
|
70
|
5818 /* Be very careful here not to get an error. */
|
|
|
5819 if (NILP (codesys) || SYMBOLP (codesys) || CODING_SYSTEMP (codesys))
|
|
|
5820 {
|
|
|
5821 codesys = Ffind_coding_system (codesys);
|
|
|
5822 if (CODING_SYSTEMP (codesys))
|
|
284
|
5823 obj = XCODING_SYSTEM_MNEMONIC (codesys);
|
|
70
|
5824 }
|
|
|
5825 }
|
|
284
|
5826 #endif /* FILE_CODING */
|
|
70
|
5827 break;
|
|
16
|
5828
|
|
0
|
5829 /* print the current line number */
|
|
|
5830 case 'l':
|
|
|
5831 str = window_line_number (w, type);
|
|
|
5832 break;
|
|
|
5833
|
|
|
5834 /* print value of mode-name (obsolete) */
|
|
|
5835 case 'm':
|
|
|
5836 obj = b->mode_name;
|
|
|
5837 break;
|
|
|
5838
|
|
149
|
5839 /* print hyphen and frame number, if != 1 */
|
|
|
5840 case 'N':
|
|
|
5841 #ifdef HAVE_TTY
|
|
|
5842 {
|
|
|
5843 struct frame *f = XFRAME (w->frame);
|
|
282
|
5844 if (FRAME_TTY_P (f) && f->order_count > 1 && f->order_count <= 99999999)
|
|
149
|
5845 {
|
|
282
|
5846 /* Naughty, naughty */
|
|
272
|
5847 char * writable_str = alloca_array (char, 10);
|
|
|
5848 sprintf (writable_str, "-%d", f->order_count);
|
|
|
5849 str = writable_str;
|
|
149
|
5850 }
|
|
|
5851 }
|
|
183
|
5852 #endif /* HAVE_TTY */
|
|
149
|
5853 break;
|
|
|
5854
|
|
0
|
5855 /* print Narrow if appropriate */
|
|
|
5856 case 'n':
|
|
|
5857 if (BUF_BEGV (b) > BUF_BEG (b)
|
|
|
5858 || BUF_ZV (b) < BUF_Z (b))
|
|
|
5859 str = " Narrow";
|
|
|
5860 break;
|
|
|
5861
|
|
|
5862 /* print %, * or hyphen, if buffer is read-only, modified or neither */
|
|
|
5863 case '*':
|
|
|
5864 str = (!NILP (b->read_only)
|
|
|
5865 ? "%"
|
|
|
5866 : ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
5867 ? "*"
|
|
|
5868 : "-"));
|
|
|
5869 break;
|
|
|
5870
|
|
|
5871 /* print * or hyphen -- XEmacs change to allow a buffer to be
|
|
|
5872 read-only but still indicate whether it is modified. */
|
|
|
5873 case '+':
|
|
|
5874 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
5875 ? "*"
|
|
|
5876 : (!NILP (b->read_only)
|
|
|
5877 ? "%"
|
|
|
5878 : "-"));
|
|
|
5879 break;
|
|
|
5880
|
|
|
5881 /* #### defined in 19.29 decode_mode_spec, but not in
|
|
|
5882 modeline-format doc string. */
|
|
|
5883 /* This differs from %* in that it ignores read-only-ness. */
|
|
|
5884 case '&':
|
|
|
5885 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
5886 ? "*"
|
|
|
5887 : "-");
|
|
|
5888 break;
|
|
|
5889
|
|
|
5890 /* print process status */
|
|
|
5891 case 's':
|
|
|
5892 obj = Fget_buffer_process (w->buffer);
|
|
|
5893 if (NILP (obj))
|
|
|
5894 str = GETTEXT ("no process");
|
|
|
5895 else
|
|
|
5896 obj = Fsymbol_name (Fprocess_status (obj));
|
|
|
5897 break;
|
|
|
5898
|
|
227
|
5899 /* Print name of selected frame. */
|
|
0
|
5900 case 'S':
|
|
|
5901 obj = XFRAME (w->frame)->name;
|
|
|
5902 break;
|
|
|
5903
|
|
|
5904 /* indicate TEXT or BINARY */
|
|
|
5905 case 't':
|
|
265
|
5906 /* #### NT does not use this any more. Now what? */
|
|
0
|
5907 str = "T";
|
|
10
|
5908 break;
|
|
0
|
5909
|
|
|
5910 /* print percent of buffer above top of window, or Top, Bot or All */
|
|
|
5911 case 'p':
|
|
|
5912 {
|
|
|
5913 Bufpos pos = marker_position (w->start[type]);
|
|
412
|
5914 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
0
|
5915
|
|
|
5916 /* This had better be while the desired lines are being done. */
|
|
|
5917 if (w->window_end_pos[type] <= BUF_Z (b) - BUF_ZV (b))
|
|
|
5918 {
|
|
|
5919 if (pos <= BUF_BEGV (b))
|
|
|
5920 str = "All";
|
|
|
5921 else
|
|
|
5922 str = "Bottom";
|
|
|
5923 }
|
|
|
5924 else if (pos <= BUF_BEGV (b))
|
|
|
5925 str = "Top";
|
|
|
5926 else
|
|
|
5927 {
|
|
|
5928 /* This hard limit is ok since the string it will hold has a
|
|
|
5929 fixed maximum length of 3. But just to be safe... */
|
|
|
5930 char buf[10];
|
|
412
|
5931
|
|
|
5932 total = ((pos - BUF_BEGV (b)) * 100 + total - 1) / total;
|
|
0
|
5933
|
|
|
5934 /* We can't normally display a 3-digit number, so get us a
|
|
|
5935 2-digit number that is close. */
|
|
412
|
5936 if (total == 100)
|
|
|
5937 total = 99;
|
|
|
5938
|
|
|
5939 sprintf (buf, "%2d%%", total);
|
|
0
|
5940 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) buf,
|
|
|
5941 strlen (buf));
|
|
|
5942
|
|
|
5943 goto decode_mode_spec_done;
|
|
|
5944 }
|
|
|
5945 break;
|
|
|
5946 }
|
|
|
5947
|
|
|
5948 /* print percent of buffer above bottom of window, perhaps plus
|
|
|
5949 Top, or print Bottom or All */
|
|
|
5950 case 'P':
|
|
|
5951 {
|
|
|
5952 Bufpos toppos = marker_position (w->start[type]);
|
|
|
5953 Bufpos botpos = BUF_Z (b) - w->window_end_pos[type];
|
|
412
|
5954 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
0
|
5955
|
|
10
|
5956 /* botpos is only accurate as of the last redisplay, so we can
|
|
16
|
5957 only treat it as a hint. In particular, after erase-buffer,
|
|
|
5958 botpos may be negative. */
|
|
10
|
5959 if (botpos < toppos)
|
|
|
5960 botpos = toppos;
|
|
183
|
5961
|
|
0
|
5962 if (botpos >= BUF_ZV (b))
|
|
|
5963 {
|
|
|
5964 if (toppos <= BUF_BEGV (b))
|
|
|
5965 str = "All";
|
|
|
5966 else
|
|
|
5967 str = "Bottom";
|
|
|
5968 }
|
|
|
5969 else
|
|
|
5970 {
|
|
|
5971 /* This hard limit is ok since the string it will hold has a
|
|
|
5972 fixed maximum length of around 6. But just to be safe... */
|
|
|
5973 char buf[10];
|
|
412
|
5974
|
|
|
5975 total = ((botpos - BUF_BEGV (b)) * 100 + total - 1) / total;
|
|
0
|
5976
|
|
|
5977 /* We can't normally display a 3-digit number, so get us a
|
|
|
5978 2-digit number that is close. */
|
|
412
|
5979 if (total == 100)
|
|
|
5980 total = 99;
|
|
0
|
5981
|
|
|
5982 if (toppos <= BUF_BEGV (b))
|
|
412
|
5983 sprintf (buf, "Top%2d%%", total);
|
|
0
|
5984 else
|
|
412
|
5985 sprintf (buf, "%2d%%", total);
|
|
0
|
5986
|
|
|
5987 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) buf,
|
|
|
5988 strlen (buf));
|
|
|
5989
|
|
|
5990 goto decode_mode_spec_done;
|
|
|
5991 }
|
|
|
5992 break;
|
|
|
5993 }
|
|
|
5994
|
|
|
5995 /* print % */
|
|
|
5996 case '%':
|
|
|
5997 str = "%";
|
|
|
5998 break;
|
|
|
5999
|
|
|
6000 /* print one [ for each recursive editing level. */
|
|
|
6001 case '[':
|
|
|
6002 {
|
|
|
6003 int i;
|
|
|
6004
|
|
|
6005 if (command_loop_level > 5)
|
|
|
6006 {
|
|
|
6007 str = "[[[... ";
|
|
|
6008 break;
|
|
|
6009 }
|
|
|
6010
|
|
|
6011 for (i = 0; i < command_loop_level; i++)
|
|
|
6012 Dynarr_add (mode_spec_bufbyte_string, '[');
|
|
|
6013
|
|
|
6014 goto decode_mode_spec_done;
|
|
|
6015 }
|
|
|
6016
|
|
|
6017 /* print one ] for each recursive editing level. */
|
|
|
6018 case ']':
|
|
|
6019 {
|
|
|
6020 int i;
|
|
|
6021
|
|
|
6022 if (command_loop_level > 5)
|
|
|
6023 {
|
|
|
6024 str = "...]]]";
|
|
|
6025 break;
|
|
|
6026 }
|
|
|
6027
|
|
|
6028 for (i = 0; i < command_loop_level; i++)
|
|
|
6029 Dynarr_add (mode_spec_bufbyte_string, ']');
|
|
|
6030
|
|
|
6031 goto decode_mode_spec_done;
|
|
|
6032 }
|
|
|
6033
|
|
|
6034 /* print infinitely many dashes -- handle at top level now */
|
|
|
6035 case '-':
|
|
|
6036 break;
|
|
|
6037
|
|
|
6038 }
|
|
|
6039
|
|
|
6040 if (STRINGP (obj))
|
|
16
|
6041 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
|
6042 XSTRING_DATA (obj),
|
|
|
6043 XSTRING_LENGTH (obj));
|
|
0
|
6044 else if (str)
|
|
|
6045 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) str, strlen (str));
|
|
|
6046
|
|
|
6047 decode_mode_spec_done:
|
|
|
6048 Dynarr_add (mode_spec_bufbyte_string, '\0');
|
|
|
6049 }
|
|
|
6050
|
|
16
|
6051 /* Given a display line, free all of its data structures. */
|
|
0
|
6052
|
|
|
6053 static void
|
|
|
6054 free_display_line (struct display_line *dl)
|
|
|
6055 {
|
|
|
6056 int block;
|
|
|
6057
|
|
|
6058 if (dl->display_blocks)
|
|
|
6059 {
|
|
|
6060 for (block = 0; block < Dynarr_largest (dl->display_blocks); block++)
|
|
|
6061 {
|
|
|
6062 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
|
|
|
6063
|
|
|
6064 Dynarr_free (db->runes);
|
|
|
6065 }
|
|
|
6066
|
|
|
6067 Dynarr_free (dl->display_blocks);
|
|
185
|
6068 dl->display_blocks = NULL;
|
|
0
|
6069 }
|
|
|
6070
|
|
|
6071 if (dl->left_glyphs)
|
|
|
6072 {
|
|
|
6073 Dynarr_free (dl->left_glyphs);
|
|
185
|
6074 dl->left_glyphs = NULL;
|
|
0
|
6075 }
|
|
|
6076
|
|
|
6077 if (dl->right_glyphs)
|
|
|
6078 {
|
|
|
6079 Dynarr_free (dl->right_glyphs);
|
|
185
|
6080 dl->right_glyphs = NULL;
|
|
0
|
6081 }
|
|
|
6082 }
|
|
|
6083
|
|
|
6084
|
|
|
6085 /* Given an array of display lines, free them and all data structures
|
|
|
6086 contained within them. */
|
|
|
6087
|
|
412
|
6088 static void
|
|
0
|
6089 free_display_lines (display_line_dynarr *dla)
|
|
|
6090 {
|
|
|
6091 int line;
|
|
|
6092
|
|
|
6093 for (line = 0; line < Dynarr_largest (dla); line++)
|
|
|
6094 {
|
|
|
6095 free_display_line (Dynarr_atp (dla, line));
|
|
|
6096 }
|
|
|
6097
|
|
|
6098 Dynarr_free (dla);
|
|
|
6099 }
|
|
|
6100
|
|
|
6101 /* Call internal free routine for each set of display lines. */
|
|
|
6102
|
|
|
6103 void
|
|
|
6104 free_display_structs (struct window_mirror *mir)
|
|
|
6105 {
|
|
|
6106 if (mir->current_display_lines)
|
|
|
6107 {
|
|
|
6108 free_display_lines (mir->current_display_lines);
|
|
|
6109 mir->current_display_lines = 0;
|
|
|
6110 }
|
|
|
6111
|
|
|
6112 if (mir->desired_display_lines)
|
|
|
6113 {
|
|
|
6114 free_display_lines (mir->desired_display_lines);
|
|
|
6115 mir->desired_display_lines = 0;
|
|
|
6116 }
|
|
|
6117 }
|
|
|
6118
|
|
|
6119
|
|
|
6120 static void
|
|
412
|
6121 mark_glyph_block_dynarr (glyph_block_dynarr *gba, void (*markobj) (Lisp_Object))
|
|
185
|
6122 {
|
|
|
6123 if (gba)
|
|
|
6124 {
|
|
|
6125 glyph_block *gb = Dynarr_atp (gba, 0);
|
|
|
6126 glyph_block *gb_last = Dynarr_atp (gba, Dynarr_length (gba));
|
|
|
6127
|
|
|
6128 for (; gb < gb_last; gb++)
|
|
|
6129 {
|
|
380
|
6130 if (!NILP (gb->glyph))
|
|
412
|
6131 markobj (gb->glyph);
|
|
380
|
6132 if (!NILP (gb->extent))
|
|
412
|
6133 markobj (gb->extent);
|
|
185
|
6134 }
|
|
|
6135 }
|
|
|
6136 }
|
|
|
6137
|
|
412
|
6138 static void
|
|
|
6139 mark_redisplay_structs (display_line_dynarr *dla, void (*markobj) (Lisp_Object))
|
|
0
|
6140 {
|
|
185
|
6141 display_line *dl = Dynarr_atp (dla, 0);
|
|
|
6142 display_line *dl_last = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
6143
|
|
|
6144 for (; dl < dl_last; dl++)
|
|
|
6145 {
|
|
|
6146 display_block_dynarr *dba = dl->display_blocks;
|
|
|
6147 display_block *db = Dynarr_atp (dba, 0);
|
|
|
6148 display_block *db_last = Dynarr_atp (dba, Dynarr_length (dba));
|
|
|
6149
|
|
|
6150 for (; db < db_last; db++)
|
|
|
6151 {
|
|
|
6152 rune_dynarr *ra = db->runes;
|
|
|
6153 rune *r = Dynarr_atp (ra, 0);
|
|
|
6154 rune *r_last = Dynarr_atp (ra, Dynarr_length (ra));
|
|
|
6155
|
|
|
6156 for (; r < r_last; r++)
|
|
0
|
6157 {
|
|
185
|
6158 if (r->type == RUNE_DGLYPH)
|
|
0
|
6159 {
|
|
185
|
6160 if (!NILP (r->object.dglyph.glyph))
|
|
412
|
6161 markobj (r->object.dglyph.glyph);
|
|
185
|
6162 if (!NILP (r->object.dglyph.extent))
|
|
412
|
6163 markobj (r->object.dglyph.extent);
|
|
0
|
6164 }
|
|
|
6165 }
|
|
|
6166 }
|
|
|
6167
|
|
412
|
6168 mark_glyph_block_dynarr (dl->left_glyphs, markobj);
|
|
|
6169 mark_glyph_block_dynarr (dl->right_glyphs, markobj);
|
|
0
|
6170 }
|
|
|
6171 }
|
|
|
6172
|
|
|
6173 static void
|
|
412
|
6174 mark_window_mirror (struct window_mirror *mir, void (*markobj)(Lisp_Object))
|
|
398
|
6175 {
|
|
412
|
6176 mark_redisplay_structs (mir->current_display_lines, markobj);
|
|
|
6177 mark_redisplay_structs (mir->desired_display_lines, markobj);
|
|
0
|
6178
|
|
|
6179 if (mir->next)
|
|
412
|
6180 mark_window_mirror (mir->next, markobj);
|
|
0
|
6181
|
|
|
6182 if (mir->hchild)
|
|
412
|
6183 mark_window_mirror (mir->hchild, markobj);
|
|
0
|
6184 else if (mir->vchild)
|
|
412
|
6185 mark_window_mirror (mir->vchild, markobj);
|
|
0
|
6186 }
|
|
|
6187
|
|
|
6188 void
|
|
412
|
6189 mark_redisplay (void (*markobj)(Lisp_Object))
|
|
0
|
6190 {
|
|
|
6191 Lisp_Object frmcons, devcons, concons;
|
|
|
6192
|
|
|
6193 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
6194 {
|
|
|
6195 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
6196 update_frame_window_mirror (f);
|
|
412
|
6197 mark_window_mirror (f->root_mirror, markobj);
|
|
0
|
6198 }
|
|
|
6199 }
|
|
|
6200
|
|
|
6201 /*****************************************************************************
|
|
|
6202 Line Start Cache Description and Rationale
|
|
|
6203
|
|
|
6204 The traditional scrolling code in Emacs breaks in a variable height world.
|
|
|
6205 It depends on the key assumption that the number of lines that can be
|
|
|
6206 displayed at any given time is fixed. This led to a complete separation
|
|
|
6207 of the scrolling code from the redisplay code. In order to fully support
|
|
|
6208 variable height lines, the scrolling code must actually be tightly
|
|
|
6209 integrated with redisplay. Only redisplay can determine how many lines
|
|
|
6210 will be displayed on a screen for any given starting point.
|
|
|
6211
|
|
|
6212 What is ideally wanted is a complete list of the starting buffer position
|
|
|
6213 for every possible display line of a buffer along with the height of that
|
|
|
6214 display line. Maintaining such a full list would be very expensive. We
|
|
|
6215 settle for having it include information for all areas which we happen to
|
|
|
6216 generate anyhow (i.e. the region currently being displayed) and for those
|
|
|
6217 areas we need to work with.
|
|
|
6218
|
|
|
6219 In order to ensure that the cache accurately represents what redisplay
|
|
|
6220 would actually show, it is necessary to invalidate it in many situations.
|
|
|
6221 If the buffer changes, the starting positions may no longer be correct.
|
|
|
6222 If a face or an extent has changed then the line heights may have altered.
|
|
|
6223 These events happen frequently enough that the cache can end up being
|
|
|
6224 constantly disabled. With this potentially constant invalidation when is
|
|
|
6225 the cache ever useful?
|
|
|
6226
|
|
|
6227 Even if the cache is invalidated before every single usage, it is
|
|
|
6228 necessary. Scrolling often requires knowledge about display lines which
|
|
|
6229 are actually above or below the visible region. The cache provides a
|
|
|
6230 convenient light-weight method of storing this information for multiple
|
|
|
6231 display regions. This knowledge is necessary for the scrolling code to
|
|
|
6232 always obey the First Golden Rule of Redisplay.
|
|
|
6233
|
|
|
6234 If the cache already contains all of the information that the scrolling
|
|
|
6235 routines happen to need so that it doesn't have to go generate it, then we
|
|
|
6236 are able to obey the Third Golden Rule of Redisplay. The first thing we
|
|
|
6237 do to help out the cache is to always add the displayed region. This
|
|
|
6238 region had to be generated anyway, so the cache ends up getting the
|
|
|
6239 information basically for free. In those cases where a user is simply
|
|
|
6240 scrolling around viewing a buffer there is a high probability that this is
|
|
|
6241 sufficient to always provide the needed information. The second thing we
|
|
|
6242 can do is be smart about invalidating the cache.
|
|
|
6243
|
|
|
6244 TODO -- Be smart about invalidating the cache. Potential places:
|
|
|
6245
|
|
|
6246 + Insertions at end-of-line which don't cause line-wraps do not alter the
|
|
|
6247 starting positions of any display lines. These types of buffer
|
|
|
6248 modifications should not invalidate the cache. This is actually a large
|
|
|
6249 optimization for redisplay speed as well.
|
|
|
6250
|
|
|
6251 + Buffer modifications frequently only affect the display of lines at and
|
|
|
6252 below where they occur. In these situations we should only invalidate
|
|
|
6253 the part of the cache starting at where the modification occurs.
|
|
|
6254
|
|
|
6255 In case you're wondering, the Second Golden Rule of Redisplay is not
|
|
|
6256 applicable.
|
|
|
6257 ****************************************************************************/
|
|
|
6258
|
|
|
6259 /* This will get used quite a bit so we don't want to be constantly
|
|
|
6260 allocating and freeing it. */
|
|
412
|
6261 line_start_cache_dynarr *internal_cache;
|
|
0
|
6262
|
|
|
6263 /* Makes internal_cache represent the TYPE display structs and only
|
|
|
6264 the TYPE display structs. */
|
|
|
6265
|
|
|
6266 static void
|
|
|
6267 update_internal_cache_list (struct window *w, int type)
|
|
|
6268 {
|
|
|
6269 int line;
|
|
|
6270 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
6271
|
|
|
6272 Dynarr_reset (internal_cache);
|
|
|
6273 for (line = 0; line < Dynarr_length (dla); line++)
|
|
|
6274 {
|
|
|
6275 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
6276
|
|
|
6277 if (dl->modeline)
|
|
|
6278 continue;
|
|
|
6279 else
|
|
|
6280 {
|
|
|
6281 struct line_start_cache lsc;
|
|
412
|
6282
|
|
0
|
6283 lsc.start = dl->bufpos;
|
|
|
6284 lsc.end = dl->end_bufpos;
|
|
|
6285 lsc.height = dl->ascent + dl->descent;
|
|
|
6286
|
|
|
6287 Dynarr_add (internal_cache, lsc);
|
|
|
6288 }
|
|
|
6289 }
|
|
|
6290 }
|
|
|
6291
|
|
|
6292 /* Reset the line cache if necessary. This should be run at the
|
|
|
6293 beginning of any function which access the cache. */
|
|
|
6294
|
|
|
6295 static void
|
|
|
6296 validate_line_start_cache (struct window *w)
|
|
|
6297 {
|
|
|
6298 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6299 struct frame *f = XFRAME (w->frame);
|
|
|
6300
|
|
|
6301 if (!w->line_cache_validation_override)
|
|
|
6302 {
|
|
|
6303 /* f->extents_changed used to be in here because extent face and
|
|
|
6304 size changes can cause text shifting. However, the extent
|
|
|
6305 covering the region is constantly having its face set and
|
|
|
6306 priority altered by the mouse code. This means that the line
|
|
380
|
6307 start cache is constantly being invalidated. This is bad
|
|
0
|
6308 since the mouse code also triggers heavy usage of the cache.
|
|
|
6309 Since it is an unlikely that f->extents being changed
|
|
|
6310 indicates that the cache really needs to be updated and if it
|
|
|
6311 does redisplay will catch it pretty quickly we no longer
|
|
|
6312 invalidate the cache if it is set. This greatly speeds up
|
|
|
6313 dragging out regions with the mouse. */
|
|
|
6314 if (XINT (w->line_cache_last_updated) < BUF_MODIFF (b)
|
|
|
6315 || f->faces_changed
|
|
|
6316 || f->clip_changed)
|
|
|
6317 {
|
|
|
6318 Dynarr_reset (w->line_start_cache);
|
|
|
6319 }
|
|
|
6320 }
|
|
|
6321 }
|
|
|
6322
|
|
|
6323 /* Return the very first buffer position contained in the given
|
|
|
6324 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
6325 cache is valid. */
|
|
|
6326
|
|
|
6327 static Bufpos
|
|
|
6328 line_start_cache_start (struct window *w)
|
|
|
6329 {
|
|
|
6330 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6331
|
|
|
6332 if (!Dynarr_length (cache))
|
|
|
6333 return -1;
|
|
|
6334 else
|
|
173
|
6335 return Dynarr_atp (cache, 0)->start;
|
|
0
|
6336 }
|
|
|
6337
|
|
|
6338 /* Return the very last buffer position contained in the given
|
|
|
6339 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
6340 cache is valid. */
|
|
|
6341
|
|
|
6342 static Bufpos
|
|
|
6343 line_start_cache_end (struct window *w)
|
|
|
6344 {
|
|
|
6345 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6346
|
|
|
6347 if (!Dynarr_length (cache))
|
|
|
6348 return -1;
|
|
|
6349 else
|
|
173
|
6350 return Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
0
|
6351 }
|
|
|
6352
|
|
|
6353 /* Return the index of the line POINT is contained within in window
|
|
|
6354 W's line start cache. It will enlarge the cache or move the cache
|
|
|
6355 window in order to have POINT be present in the cache. MIN_PAST is
|
|
|
6356 a guarantee of the number of entries in the cache present on either
|
|
|
6357 side of POINT (unless a buffer boundary is hit). If MIN_PAST is -1
|
|
|
6358 then it will be treated as 0, but the cache window will not be
|
|
|
6359 allowed to shift. Returns -1 if POINT cannot be found in the cache
|
|
|
6360 for any reason. */
|
|
|
6361
|
|
|
6362 int
|
|
|
6363 point_in_line_start_cache (struct window *w, Bufpos point, int min_past)
|
|
|
6364 {
|
|
|
6365 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6366 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6367 unsigned int top, bottom, pos;
|
|
|
6368
|
|
|
6369 validate_line_start_cache (w);
|
|
|
6370 w->line_cache_validation_override++;
|
|
|
6371
|
|
|
6372 /* Let functions pass in negative values, but we still treat -1
|
|
|
6373 specially. */
|
|
|
6374 /* #### bogosity alert */
|
|
|
6375 if (min_past < 0 && min_past != -1)
|
|
|
6376 min_past = -min_past;
|
|
|
6377
|
|
|
6378 if (!Dynarr_length (cache) || line_start_cache_start (w) > point
|
|
|
6379 || line_start_cache_end (w) < point)
|
|
|
6380 {
|
|
|
6381 int loop;
|
|
|
6382 int win_char_height = window_char_height (w, 1);
|
|
|
6383
|
|
|
6384 /* Occasionally we get here with a 0 height
|
|
|
6385 window. find_next_newline_no_quit will abort if we pass it a
|
|
|
6386 count of 0 so handle that case. */
|
|
|
6387 if (!win_char_height)
|
|
|
6388 win_char_height = 1;
|
|
|
6389
|
|
|
6390 if (!Dynarr_length (cache))
|
|
|
6391 {
|
|
|
6392 Bufpos from = find_next_newline_no_quit (b, point, -1);
|
|
|
6393 Bufpos to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6394
|
|
|
6395 update_line_start_cache (w, from, to, point, 0);
|
|
|
6396
|
|
|
6397 if (!Dynarr_length (cache))
|
|
|
6398 {
|
|
|
6399 w->line_cache_validation_override--;
|
|
|
6400 return -1;
|
|
|
6401 }
|
|
|
6402 }
|
|
|
6403
|
|
|
6404 assert (Dynarr_length (cache));
|
|
|
6405
|
|
|
6406 loop = 0;
|
|
|
6407 while (line_start_cache_start (w) > point
|
|
|
6408 && (loop < cache_adjustment || min_past == -1))
|
|
|
6409 {
|
|
|
6410 Bufpos from, to;
|
|
|
6411
|
|
|
6412 from = line_start_cache_start (w);
|
|
|
6413 if (from <= BUF_BEGV (b))
|
|
|
6414 break;
|
|
|
6415
|
|
|
6416 from = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
6417 to = line_start_cache_end (w);
|
|
|
6418
|
|
|
6419 update_line_start_cache (w, from, to, point, 0);
|
|
|
6420 loop++;
|
|
|
6421 }
|
|
|
6422
|
|
|
6423 if (line_start_cache_start (w) > point)
|
|
|
6424 {
|
|
|
6425 Bufpos from, to;
|
|
|
6426
|
|
|
6427 from = find_next_newline_no_quit (b, point, -1);
|
|
|
6428 if (from >= BUF_ZV (b))
|
|
|
6429 {
|
|
|
6430 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
6431 from = to;
|
|
|
6432 to = BUF_ZV (b);
|
|
|
6433 }
|
|
|
6434 else
|
|
|
6435 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6436
|
|
|
6437 update_line_start_cache (w, from, to, point, 0);
|
|
|
6438 }
|
|
|
6439
|
|
|
6440 loop = 0;
|
|
|
6441 while (line_start_cache_end (w) < point
|
|
|
6442 && (loop < cache_adjustment || min_past == -1))
|
|
|
6443 {
|
|
|
6444 Bufpos from, to;
|
|
|
6445
|
|
|
6446 to = line_start_cache_end (w);
|
|
|
6447 if (to >= BUF_ZV (b))
|
|
|
6448 break;
|
|
|
6449
|
|
|
6450 from = line_start_cache_end (w);
|
|
|
6451 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6452
|
|
|
6453 update_line_start_cache (w, from, to, point, 0);
|
|
|
6454 loop++;
|
|
|
6455 }
|
|
|
6456
|
|
|
6457 if (line_start_cache_end (w) < point)
|
|
|
6458 {
|
|
|
6459 Bufpos from, to;
|
|
|
6460
|
|
|
6461 from = find_next_newline_no_quit (b, point, -1);
|
|
|
6462 if (from >= BUF_ZV (b))
|
|
|
6463 {
|
|
|
6464 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
6465 from = to;
|
|
|
6466 to = BUF_ZV (b);
|
|
|
6467 }
|
|
|
6468 else
|
|
|
6469 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6470
|
|
|
6471 update_line_start_cache (w, from, to, point, 0);
|
|
|
6472 }
|
|
|
6473 }
|
|
|
6474
|
|
|
6475 assert (Dynarr_length (cache));
|
|
|
6476
|
|
|
6477 if (min_past == -1)
|
|
|
6478 min_past = 0;
|
|
|
6479
|
|
|
6480 /* This could happen if the buffer is narrowed. */
|
|
|
6481 if (line_start_cache_start (w) > point
|
|
|
6482 || line_start_cache_end (w) < point)
|
|
|
6483 {
|
|
|
6484 w->line_cache_validation_override--;
|
|
|
6485 return -1;
|
|
|
6486 }
|
|
|
6487
|
|
|
6488 find_point_loop:
|
|
|
6489
|
|
|
6490 top = Dynarr_length (cache) - 1;
|
|
|
6491 bottom = 0;
|
|
|
6492
|
|
|
6493 while (1)
|
|
|
6494 {
|
|
|
6495 unsigned int new_pos;
|
|
|
6496 Bufpos start, end;
|
|
|
6497
|
|
|
6498 pos = (bottom + top + 1) >> 1;
|
|
|
6499 start = Dynarr_atp (cache, pos)->start;
|
|
|
6500 end = Dynarr_atp (cache, pos)->end;
|
|
|
6501
|
|
|
6502 if (point >= start && point <= end)
|
|
|
6503 {
|
|
|
6504 if (pos < min_past && line_start_cache_start (w) > BUF_BEGV (b))
|
|
|
6505 {
|
|
|
6506 Bufpos from =
|
|
|
6507 find_next_newline_no_quit (b, line_start_cache_start (w),
|
|
|
6508 -min_past - 1);
|
|
|
6509 Bufpos to = line_start_cache_end (w);
|
|
|
6510
|
|
|
6511 update_line_start_cache (w, from, to, point, 0);
|
|
|
6512 goto find_point_loop;
|
|
|
6513 }
|
|
|
6514 else if ((Dynarr_length (cache) - pos - 1) < min_past
|
|
|
6515 && line_start_cache_end (w) < BUF_ZV (b))
|
|
|
6516 {
|
|
|
6517 Bufpos from = line_start_cache_end (w);
|
|
|
6518 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
6519 (min_past
|
|
|
6520 ? min_past
|
|
|
6521 : 1));
|
|
|
6522
|
|
|
6523 update_line_start_cache (w, from, to, point, 0);
|
|
|
6524 goto find_point_loop;
|
|
|
6525 }
|
|
|
6526 else
|
|
|
6527 {
|
|
|
6528 w->line_cache_validation_override--;
|
|
|
6529 return pos;
|
|
|
6530 }
|
|
|
6531 }
|
|
|
6532 else if (point > end)
|
|
|
6533 bottom = pos + 1;
|
|
|
6534 else if (point < start)
|
|
|
6535 top = pos - 1;
|
|
|
6536 else
|
|
|
6537 abort ();
|
|
|
6538
|
|
|
6539 new_pos = (bottom + top + 1) >> 1;
|
|
|
6540 if (pos == new_pos)
|
|
|
6541 {
|
|
|
6542 w->line_cache_validation_override--;
|
|
|
6543 return -1;
|
|
|
6544 }
|
|
|
6545 }
|
|
|
6546 }
|
|
|
6547
|
|
|
6548 /* Return a boolean indicating if POINT would be visible in window W
|
|
|
6549 if display of the window was to begin at STARTP. */
|
|
|
6550
|
|
|
6551 int
|
|
|
6552 point_would_be_visible (struct window *w, Bufpos startp, Bufpos point)
|
|
|
6553 {
|
|
|
6554 struct buffer *b = XBUFFER (w->buffer);
|
|
412
|
6555 int pixpos = 0;
|
|
0
|
6556 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
6557 int start_elt;
|
|
|
6558
|
|
|
6559 /* If point is before the intended start it obviously can't be visible. */
|
|
|
6560 if (point < startp)
|
|
|
6561 return 0;
|
|
|
6562
|
|
|
6563 /* If point or start are not in the accessible buffer range, then
|
|
|
6564 fail. */
|
|
|
6565 if (startp < BUF_BEGV (b) || startp > BUF_ZV (b)
|
|
|
6566 || point < BUF_BEGV (b) || point > BUF_ZV (b))
|
|
267
|
6567 return 0;
|
|
0
|
6568
|
|
|
6569 validate_line_start_cache (w);
|
|
|
6570 w->line_cache_validation_override++;
|
|
|
6571
|
|
|
6572 start_elt = point_in_line_start_cache (w, startp, 0);
|
|
|
6573 if (start_elt == -1)
|
|
|
6574 {
|
|
|
6575 w->line_cache_validation_override--;
|
|
|
6576 return 0;
|
|
|
6577 }
|
|
|
6578
|
|
|
6579 assert (line_start_cache_start (w) <= startp
|
|
|
6580 && line_start_cache_end (w) >= startp);
|
|
|
6581
|
|
|
6582 while (1)
|
|
|
6583 {
|
|
|
6584 int height;
|
|
|
6585
|
|
|
6586 /* Expand the cache if necessary. */
|
|
|
6587 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
6588 {
|
|
|
6589 Bufpos old_startp =
|
|
|
6590 Dynarr_atp (w->line_start_cache, start_elt - 1)->start;
|
|
|
6591
|
|
|
6592 start_elt = point_in_line_start_cache (w, old_startp,
|
|
|
6593 window_char_height (w, 0));
|
|
|
6594
|
|
|
6595 /* We've already actually processed old_startp, so increment
|
|
|
6596 immediately. */
|
|
|
6597 start_elt++;
|
|
|
6598
|
|
|
6599 /* If this happens we didn't add any extra elements. Bummer. */
|
|
|
6600 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
6601 {
|
|
|
6602 w->line_cache_validation_override--;
|
|
|
6603 return 0;
|
|
|
6604 }
|
|
|
6605 }
|
|
|
6606
|
|
|
6607 height = Dynarr_atp (w->line_start_cache, start_elt)->height;
|
|
|
6608
|
|
|
6609 if (pixpos + height > bottom)
|
|
|
6610 {
|
|
|
6611 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
6612 {
|
|
|
6613 w->line_cache_validation_override--;
|
|
|
6614 return 0;
|
|
|
6615 }
|
|
|
6616 }
|
|
|
6617
|
|
|
6618 pixpos += height;
|
|
|
6619 if (point <= Dynarr_atp (w->line_start_cache, start_elt)->end)
|
|
|
6620 {
|
|
|
6621 w->line_cache_validation_override--;
|
|
|
6622 return 1;
|
|
|
6623 }
|
|
|
6624
|
|
|
6625 start_elt++;
|
|
|
6626 }
|
|
|
6627 }
|
|
|
6628
|
|
|
6629 /* For the given window W, if display starts at STARTP, what will be
|
|
|
6630 the buffer position at the beginning or end of the last line
|
|
|
6631 displayed. The end of the last line is also know as the window end
|
|
|
6632 position.
|
|
|
6633
|
|
|
6634 #### With a little work this could probably be reworked as just a
|
|
|
6635 call to start_with_line_at_pixpos. */
|
|
|
6636
|
|
|
6637 static Bufpos
|
|
412
|
6638 start_end_of_last_line (struct window *w, Bufpos startp, int end)
|
|
0
|
6639 {
|
|
|
6640 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6641 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6642 int pixpos = 0;
|
|
|
6643 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
6644 Bufpos cur_start;
|
|
|
6645 int start_elt;
|
|
|
6646
|
|
|
6647 validate_line_start_cache (w);
|
|
|
6648 w->line_cache_validation_override++;
|
|
|
6649
|
|
|
6650 if (startp < BUF_BEGV (b))
|
|
|
6651 startp = BUF_BEGV (b);
|
|
|
6652 else if (startp > BUF_ZV (b))
|
|
|
6653 startp = BUF_ZV (b);
|
|
|
6654 cur_start = startp;
|
|
|
6655
|
|
|
6656 start_elt = point_in_line_start_cache (w, cur_start, 0);
|
|
|
6657 if (start_elt == -1)
|
|
412
|
6658 abort (); /* this had better never happen */
|
|
371
|
6659
|
|
0
|
6660 while (1)
|
|
|
6661 {
|
|
|
6662 int height = Dynarr_atp (cache, start_elt)->height;
|
|
|
6663
|
|
|
6664 cur_start = Dynarr_atp (cache, start_elt)->start;
|
|
|
6665
|
|
|
6666 if (pixpos + height > bottom)
|
|
|
6667 {
|
|
|
6668 /* Adjust for any possible clip. */
|
|
|
6669 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
6670 start_elt--;
|
|
|
6671
|
|
|
6672 if (start_elt < 0)
|
|
|
6673 {
|
|
|
6674 w->line_cache_validation_override--;
|
|
|
6675 if (end)
|
|
173
|
6676 return BUF_ZV (b);
|
|
0
|
6677 else
|
|
173
|
6678 return BUF_BEGV (b);
|
|
0
|
6679 }
|
|
|
6680 else
|
|
|
6681 {
|
|
|
6682 w->line_cache_validation_override--;
|
|
|
6683 if (end)
|
|
|
6684 return Dynarr_atp (cache, start_elt)->end;
|
|
|
6685 else
|
|
|
6686 return Dynarr_atp (cache, start_elt)->start;
|
|
|
6687 }
|
|
|
6688 }
|
|
|
6689
|
|
|
6690 pixpos += height;
|
|
|
6691 start_elt++;
|
|
|
6692 if (start_elt == Dynarr_length (cache))
|
|
|
6693 {
|
|
|
6694 Bufpos from = line_start_cache_end (w);
|
|
|
6695 int win_char_height = window_char_height (w, 0);
|
|
|
6696 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
6697 (win_char_height
|
|
|
6698 ? win_char_height
|
|
|
6699 : 1));
|
|
|
6700
|
|
|
6701 /* We've hit the end of the bottom so that's what it is. */
|
|
|
6702 if (from >= BUF_ZV (b))
|
|
|
6703 {
|
|
|
6704 w->line_cache_validation_override--;
|
|
173
|
6705 return BUF_ZV (b);
|
|
0
|
6706 }
|
|
|
6707
|
|
|
6708 update_line_start_cache (w, from, to, BUF_PT (b), 0);
|
|
|
6709
|
|
|
6710 /* Updating the cache invalidates any current indexes. */
|
|
|
6711 start_elt = point_in_line_start_cache (w, cur_start, -1) + 1;
|
|
|
6712 }
|
|
|
6713 }
|
|
|
6714 }
|
|
|
6715
|
|
|
6716 /* For the given window W, if display starts at STARTP, what will be
|
|
|
6717 the buffer position at the beginning of the last line displayed. */
|
|
|
6718
|
|
|
6719 Bufpos
|
|
|
6720 start_of_last_line (struct window *w, Bufpos startp)
|
|
|
6721 {
|
|
412
|
6722 return start_end_of_last_line (w, startp, 0);
|
|
0
|
6723 }
|
|
|
6724
|
|
|
6725 /* For the given window W, if display starts at STARTP, what will be
|
|
|
6726 the buffer position at the end of the last line displayed. This is
|
|
|
6727 also know as the window end position. */
|
|
|
6728
|
|
|
6729 Bufpos
|
|
|
6730 end_of_last_line (struct window *w, Bufpos startp)
|
|
|
6731 {
|
|
412
|
6732 return start_end_of_last_line (w, startp, 1);
|
|
0
|
6733 }
|
|
|
6734
|
|
|
6735 /* For window W, what does the starting position have to be so that
|
|
|
6736 the line containing POINT will cover pixel position PIXPOS. */
|
|
|
6737
|
|
|
6738 Bufpos
|
|
|
6739 start_with_line_at_pixpos (struct window *w, Bufpos point, int pixpos)
|
|
|
6740 {
|
|
|
6741 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6742 int cur_elt;
|
|
116
|
6743 Bufpos cur_pos, prev_pos = point;
|
|
|
6744 int point_line_height;
|
|
0
|
6745 int pixheight = pixpos - WINDOW_TEXT_TOP (w);
|
|
|
6746
|
|
|
6747 validate_line_start_cache (w);
|
|
|
6748 w->line_cache_validation_override++;
|
|
|
6749
|
|
|
6750 cur_elt = point_in_line_start_cache (w, point, 0);
|
|
|
6751 /* #### See comment in update_line_start_cache about big minibuffers. */
|
|
|
6752 if (cur_elt < 0)
|
|
267
|
6753 {
|
|
|
6754 w->line_cache_validation_override--;
|
|
|
6755 return point;
|
|
|
6756 }
|
|
116
|
6757
|
|
|
6758 point_line_height = Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
6759
|
|
0
|
6760 while (1)
|
|
|
6761 {
|
|
|
6762 cur_pos = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
6763
|
|
|
6764 pixheight -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
6765
|
|
|
6766 /* Do not take into account the value of vertical_clip here.
|
|
|
6767 That is the responsibility of the calling functions. */
|
|
|
6768 if (pixheight < 0)
|
|
|
6769 {
|
|
|
6770 w->line_cache_validation_override--;
|
|
116
|
6771 if (-pixheight > point_line_height)
|
|
|
6772 /* We can't make the target line cover pixpos, so put it
|
|
|
6773 above pixpos. That way it will at least be visible. */
|
|
183
|
6774 return prev_pos;
|
|
116
|
6775 else
|
|
|
6776 return cur_pos;
|
|
0
|
6777 }
|
|
|
6778
|
|
|
6779 cur_elt--;
|
|
412
|
6780 if (cur_elt < 0)
|
|
0
|
6781 {
|
|
|
6782 Bufpos from, to;
|
|
|
6783 int win_char_height;
|
|
|
6784
|
|
|
6785 if (cur_pos <= BUF_BEGV (b))
|
|
|
6786 {
|
|
|
6787 w->line_cache_validation_override--;
|
|
173
|
6788 return BUF_BEGV (b);
|
|
0
|
6789 }
|
|
|
6790
|
|
|
6791 win_char_height = window_char_height (w, 0);
|
|
|
6792 if (!win_char_height)
|
|
|
6793 win_char_height = 1;
|
|
|
6794
|
|
|
6795 from = find_next_newline_no_quit (b, cur_pos, -win_char_height);
|
|
|
6796 to = line_start_cache_end (w);
|
|
|
6797 update_line_start_cache (w, from, to, point, 0);
|
|
|
6798
|
|
|
6799 cur_elt = point_in_line_start_cache (w, cur_pos, 2) - 1;
|
|
412
|
6800 assert (cur_elt >= 0);
|
|
0
|
6801 }
|
|
116
|
6802 prev_pos = cur_pos;
|
|
0
|
6803 }
|
|
|
6804 }
|
|
|
6805
|
|
|
6806 /* For window W, what does the starting position have to be so that
|
|
|
6807 the line containing point is on display line LINE. If LINE is
|
|
|
6808 positive it is considered to be the number of lines from the top of
|
|
|
6809 the window (0 is the top line). If it is negative the number is
|
|
|
6810 considered to be the number of lines from the bottom (-1 is the
|
|
|
6811 bottom line). */
|
|
|
6812
|
|
|
6813 Bufpos
|
|
|
6814 start_with_point_on_display_line (struct window *w, Bufpos point, int line)
|
|
|
6815 {
|
|
|
6816 validate_line_start_cache (w);
|
|
|
6817 w->line_cache_validation_override++;
|
|
|
6818
|
|
|
6819 if (line >= 0)
|
|
|
6820 {
|
|
|
6821 int cur_elt = point_in_line_start_cache (w, point, line);
|
|
|
6822
|
|
|
6823 if (cur_elt - line < 0)
|
|
|
6824 cur_elt = 0; /* Hit the top */
|
|
|
6825 else
|
|
|
6826 cur_elt -= line;
|
|
|
6827
|
|
|
6828 w->line_cache_validation_override--;
|
|
173
|
6829 return Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
0
|
6830 }
|
|
|
6831 else
|
|
|
6832 {
|
|
|
6833 /* The calculated value of pixpos is correct for the bottom line
|
|
|
6834 or what we want when line is -1. Therefore we subtract one
|
|
|
6835 because we have already handled one line. */
|
|
|
6836 int new_line = -line - 1;
|
|
|
6837 int cur_elt = point_in_line_start_cache (w, point, new_line);
|
|
|
6838 int pixpos = WINDOW_TEXT_BOTTOM (w);
|
|
|
6839 Bufpos retval, search_point;
|
|
|
6840
|
|
|
6841 /* If scroll_on_clipped_lines is false, the last "visible" line of
|
|
|
6842 the window covers the pixel at WINDOW_TEXT_BOTTOM (w) - 1.
|
|
183
|
6843 If s_o_c_l is true, then we don't want to count a clipped
|
|
|
6844 line, so back up from the bottom by the height of the line
|
|
0
|
6845 containing point. */
|
|
|
6846 if (scroll_on_clipped_lines)
|
|
|
6847 pixpos -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
6848 else
|
|
|
6849 pixpos -= 1;
|
|
|
6850
|
|
|
6851 if (cur_elt + new_line >= Dynarr_length (w->line_start_cache))
|
|
|
6852 {
|
|
|
6853 /* Hit the bottom of the buffer. */
|
|
|
6854 int adjustment =
|
|
|
6855 (cur_elt + new_line) - Dynarr_length (w->line_start_cache) + 1;
|
|
272
|
6856 Lisp_Object window;
|
|
0
|
6857 int defheight;
|
|
|
6858
|
|
|
6859 XSETWINDOW (window, w);
|
|
|
6860 default_face_height_and_width (window, &defheight, 0);
|
|
|
6861
|
|
|
6862 cur_elt = Dynarr_length (w->line_start_cache) - 1;
|
|
|
6863
|
|
|
6864 pixpos -= (adjustment * defheight);
|
|
|
6865 if (pixpos < WINDOW_TEXT_TOP (w))
|
|
|
6866 pixpos = WINDOW_TEXT_TOP (w);
|
|
|
6867 }
|
|
|
6868 else
|
|
|
6869 cur_elt = cur_elt + new_line;
|
|
|
6870
|
|
|
6871 search_point = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
6872
|
|
|
6873 retval = start_with_line_at_pixpos (w, search_point, pixpos);
|
|
|
6874 w->line_cache_validation_override--;
|
|
|
6875 return retval;
|
|
|
6876 }
|
|
|
6877 }
|
|
|
6878
|
|
|
6879 /* This is used to speed up vertical scrolling by caching the known
|
|
|
6880 buffer starting positions for display lines. This allows the
|
|
|
6881 scrolling routines to avoid costly calls to regenerate_window. If
|
|
|
6882 NO_REGEN is true then it will only add the values in the DESIRED
|
|
|
6883 display structs which are in the given range.
|
|
|
6884
|
|
|
6885 Note also that the FROM/TO values are minimums. It is possible
|
|
|
6886 that this function will actually add information outside of the
|
|
|
6887 lines containing those positions. This can't hurt but it could
|
|
|
6888 possibly help.
|
|
|
6889
|
|
|
6890 #### We currently force the cache to have only 1 contiguous region.
|
|
|
6891 It might help to make the cache a dynarr of caches so that we can
|
|
|
6892 cover more areas. This might, however, turn out to be a lot of
|
|
|
6893 overhead for too little gain. */
|
|
|
6894
|
|
|
6895 static void
|
|
|
6896 update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
|
|
|
6897 Bufpos point, int no_regen)
|
|
|
6898 {
|
|
|
6899 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6900 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6901 Bufpos low_bound, high_bound;
|
|
|
6902
|
|
|
6903 validate_line_start_cache (w);
|
|
|
6904 w->line_cache_validation_override++;
|
|
412
|
6905 updating_line_start_cache = 1;
|
|
0
|
6906
|
|
|
6907 if (from < BUF_BEGV (b))
|
|
|
6908 from = BUF_BEGV (b);
|
|
|
6909 if (to > BUF_ZV (b))
|
|
|
6910 to = BUF_ZV (b);
|
|
|
6911
|
|
|
6912 if (from > to)
|
|
|
6913 {
|
|
412
|
6914 updating_line_start_cache = 0;
|
|
0
|
6915 w->line_cache_validation_override--;
|
|
|
6916 return;
|
|
|
6917 }
|
|
|
6918
|
|
|
6919 if (Dynarr_length (cache))
|
|
|
6920 {
|
|
|
6921 low_bound = line_start_cache_start (w);
|
|
|
6922 high_bound = line_start_cache_end (w);
|
|
|
6923
|
|
|
6924 /* Check to see if the desired range is already in the cache. */
|
|
|
6925 if (from >= low_bound && to <= high_bound)
|
|
|
6926 {
|
|
412
|
6927 updating_line_start_cache = 0;
|
|
0
|
6928 w->line_cache_validation_override--;
|
|
|
6929 return;
|
|
|
6930 }
|
|
|
6931
|
|
|
6932 /* Check to make sure that the desired range is adjacent to the
|
|
|
6933 current cache. If not, invalidate the cache. */
|
|
|
6934 if (to < low_bound || from > high_bound)
|
|
|
6935 {
|
|
|
6936 Dynarr_reset (cache);
|
|
|
6937 low_bound = high_bound = -1;
|
|
|
6938 }
|
|
|
6939 }
|
|
|
6940 else
|
|
|
6941 {
|
|
|
6942 low_bound = high_bound = -1;
|
|
|
6943 }
|
|
|
6944
|
|
|
6945 w->line_cache_last_updated = make_int (BUF_MODIFF (b));
|
|
|
6946
|
|
|
6947 /* This could be integrated into the next two sections, but it is easier
|
|
|
6948 to follow what's going on by having it separate. */
|
|
|
6949 if (no_regen)
|
|
|
6950 {
|
|
|
6951 Bufpos start, end;
|
|
|
6952
|
|
|
6953 update_internal_cache_list (w, DESIRED_DISP);
|
|
|
6954 if (!Dynarr_length (internal_cache))
|
|
|
6955 {
|
|
412
|
6956 updating_line_start_cache = 0;
|
|
0
|
6957 w->line_cache_validation_override--;
|
|
|
6958 return;
|
|
|
6959 }
|
|
|
6960
|
|
|
6961 start = Dynarr_atp (internal_cache, 0)->start;
|
|
|
6962 end =
|
|
|
6963 Dynarr_atp (internal_cache, Dynarr_length (internal_cache) - 1)->end;
|
|
|
6964
|
|
|
6965 /* We aren't allowed to generate additional information to fill in
|
|
|
6966 gaps, so if the DESIRED structs don't overlap the cache, reset the
|
|
|
6967 cache. */
|
|
|
6968 if (Dynarr_length (cache))
|
|
|
6969 {
|
|
|
6970 if (end < low_bound || start > high_bound)
|
|
|
6971 Dynarr_reset (cache);
|
|
|
6972
|
|
|
6973 /* #### What should really happen if what we are doing is
|
|
|
6974 extending a line (the last line)? */
|
|
|
6975 if (Dynarr_length (cache) == 1
|
|
|
6976 && Dynarr_length (internal_cache) == 1)
|
|
|
6977 Dynarr_reset (cache);
|
|
|
6978 }
|
|
|
6979
|
|
|
6980 if (!Dynarr_length (cache))
|
|
|
6981 {
|
|
|
6982 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
6983 Dynarr_length (internal_cache));
|
|
412
|
6984 updating_line_start_cache = 0;
|
|
0
|
6985 w->line_cache_validation_override--;
|
|
|
6986 return;
|
|
|
6987 }
|
|
|
6988
|
|
|
6989 /* An extra check just in case the calling function didn't pass in
|
|
|
6990 the bounds of the DESIRED structs in the first place. */
|
|
|
6991 if (start >= low_bound && end <= high_bound)
|
|
|
6992 {
|
|
412
|
6993 updating_line_start_cache = 0;
|
|
0
|
6994 w->line_cache_validation_override--;
|
|
|
6995 return;
|
|
|
6996 }
|
|
|
6997
|
|
|
6998 /* At this point we know that the internal cache partially overlaps
|
|
|
6999 the main cache. */
|
|
|
7000 if (start < low_bound)
|
|
|
7001 {
|
|
|
7002 int ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
7003 while (ic_elt >= 0)
|
|
|
7004 {
|
|
|
7005 if (Dynarr_atp (internal_cache, ic_elt)->start < low_bound)
|
|
|
7006 break;
|
|
|
7007 else
|
|
|
7008 ic_elt--;
|
|
|
7009 }
|
|
|
7010
|
|
|
7011 if (!(ic_elt >= 0))
|
|
|
7012 {
|
|
|
7013 Dynarr_reset (cache);
|
|
|
7014 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7015 Dynarr_length (internal_cache));
|
|
412
|
7016 updating_line_start_cache = 0;
|
|
0
|
7017 w->line_cache_validation_override--;
|
|
|
7018 return;
|
|
|
7019 }
|
|
|
7020
|
|
|
7021 Dynarr_insert_many_at_start (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7022 ic_elt + 1);
|
|
|
7023 }
|
|
|
7024
|
|
|
7025 if (end > high_bound)
|
|
|
7026 {
|
|
|
7027 int ic_elt = 0;
|
|
|
7028
|
|
|
7029 while (ic_elt < Dynarr_length (internal_cache))
|
|
|
7030 {
|
|
|
7031 if (Dynarr_atp (internal_cache, ic_elt)->start > high_bound)
|
|
|
7032 break;
|
|
|
7033 else
|
|
|
7034 ic_elt++;
|
|
|
7035 }
|
|
|
7036
|
|
|
7037 if (!(ic_elt < Dynarr_length (internal_cache)))
|
|
|
7038 {
|
|
|
7039 Dynarr_reset (cache);
|
|
|
7040 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7041 Dynarr_length (internal_cache));
|
|
412
|
7042 updating_line_start_cache = 0;
|
|
0
|
7043 w->line_cache_validation_override--;
|
|
|
7044 return;
|
|
|
7045 }
|
|
|
7046
|
|
|
7047 Dynarr_add_many (cache, Dynarr_atp (internal_cache, ic_elt),
|
|
|
7048 Dynarr_length (internal_cache) - ic_elt);
|
|
|
7049 }
|
|
|
7050
|
|
412
|
7051 updating_line_start_cache = 0;
|
|
0
|
7052 w->line_cache_validation_override--;
|
|
|
7053 return;
|
|
|
7054 }
|
|
|
7055
|
|
|
7056 if (!Dynarr_length (cache) || from < low_bound)
|
|
|
7057 {
|
|
|
7058 Bufpos startp = find_next_newline_no_quit (b, from, -1);
|
|
|
7059 int marker = 0;
|
|
|
7060 int old_lb = low_bound;
|
|
|
7061
|
|
|
7062 while (startp < old_lb || low_bound == -1)
|
|
|
7063 {
|
|
|
7064 int ic_elt;
|
|
272
|
7065 Bufpos new_startp;
|
|
0
|
7066
|
|
|
7067 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
7068 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
7069
|
|
|
7070 /* If this assert is triggered then regenerate_window failed
|
|
412
|
7071 to layout a single line. That is not supposed to be
|
|
|
7072 possible because we impose a minimum height on the buffer
|
|
|
7073 and override vertical clip when we are in here. */
|
|
|
7074 /* #### Ah, but it is because the window may temporarily
|
|
|
7075 exist but not have any lines at all if the minibuffer is
|
|
|
7076 real big. Look into that situation better. */
|
|
|
7077 if (!Dynarr_length (internal_cache))
|
|
|
7078 {
|
|
|
7079 if (old_lb == -1 && low_bound == -1)
|
|
|
7080 {
|
|
|
7081 updating_line_start_cache = 0;
|
|
|
7082 w->line_cache_validation_override--;
|
|
|
7083 return;
|
|
|
7084 }
|
|
|
7085
|
|
|
7086 assert (Dynarr_length (internal_cache));
|
|
|
7087 }
|
|
0
|
7088 assert (startp == Dynarr_atp (internal_cache, 0)->start);
|
|
|
7089
|
|
|
7090 ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
7091 if (low_bound != -1)
|
|
|
7092 {
|
|
|
7093 while (ic_elt >= 0)
|
|
|
7094 {
|
|
|
7095 if (Dynarr_atp (internal_cache, ic_elt)->start < old_lb)
|
|
|
7096 break;
|
|
|
7097 else
|
|
|
7098 ic_elt--;
|
|
|
7099 }
|
|
|
7100 }
|
|
|
7101 assert (ic_elt >= 0);
|
|
|
7102
|
|
272
|
7103 new_startp = Dynarr_atp (internal_cache, ic_elt)->end + 1;
|
|
|
7104
|
|
|
7105 /*
|
|
|
7106 * Handle invisible text properly:
|
|
380
|
7107 * If the last line we're inserting has the same end as the
|
|
272
|
7108 * line before which it will be added, merge the two lines.
|
|
|
7109 */
|
|
|
7110 if (Dynarr_length (cache) &&
|
|
|
7111 Dynarr_atp (internal_cache, ic_elt)->end ==
|
|
|
7112 Dynarr_atp (cache, marker)->end)
|
|
|
7113 {
|
|
|
7114 Dynarr_atp (cache, marker)->start
|
|
|
7115 = Dynarr_atp (internal_cache, ic_elt)->start;
|
|
|
7116 Dynarr_atp (cache, marker)->height
|
|
|
7117 = Dynarr_atp (internal_cache, ic_elt)->height;
|
|
|
7118 ic_elt--;
|
|
|
7119 }
|
|
|
7120
|
|
|
7121 if (ic_elt >= 0) /* we still have lines to add.. */
|
|
|
7122 {
|
|
|
7123 Dynarr_insert_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7124 ic_elt + 1, marker);
|
|
|
7125 marker += (ic_elt + 1);
|
|
|
7126 }
|
|
0
|
7127
|
|
|
7128 if (startp < low_bound || low_bound == -1)
|
|
|
7129 low_bound = startp;
|
|
272
|
7130 startp = new_startp;
|
|
0
|
7131 if (startp > BUF_ZV (b))
|
|
|
7132 {
|
|
412
|
7133 updating_line_start_cache = 0;
|
|
0
|
7134 w->line_cache_validation_override--;
|
|
|
7135 return;
|
|
|
7136 }
|
|
|
7137 }
|
|
|
7138 }
|
|
|
7139
|
|
|
7140 assert (Dynarr_length (cache));
|
|
|
7141 assert (from >= low_bound);
|
|
|
7142
|
|
|
7143 /* Readjust the high_bound to account for any changes made while
|
|
|
7144 correcting the low_bound. */
|
|
|
7145 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
7146
|
|
|
7147 if (to > high_bound)
|
|
|
7148 {
|
|
|
7149 Bufpos startp = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end + 1;
|
|
|
7150
|
|
|
7151 do
|
|
|
7152 {
|
|
|
7153 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
7154 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
7155
|
|
|
7156 /* See comment above about regenerate_window failing. */
|
|
|
7157 assert (Dynarr_length (internal_cache));
|
|
|
7158
|
|
|
7159 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7160 Dynarr_length (internal_cache));
|
|
|
7161 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
7162 startp = high_bound + 1;
|
|
|
7163 }
|
|
|
7164 while (to > high_bound);
|
|
|
7165 }
|
|
|
7166
|
|
412
|
7167 updating_line_start_cache = 0;
|
|
0
|
7168 w->line_cache_validation_override--;
|
|
|
7169 assert (to <= high_bound);
|
|
|
7170 }
|
|
|
7171
|
|
|
7172
|
|
|
7173 /* Given x and y coordinates in characters, relative to a window,
|
|
|
7174 return the pixel location corresponding to those coordinates. The
|
|
|
7175 pixel location returned is the center of the given character
|
|
|
7176 position. The pixel values are generated relative to the window,
|
|
|
7177 not the frame.
|
|
|
7178
|
|
|
7179 The modeline is considered to be part of the window. */
|
|
|
7180
|
|
|
7181 void
|
|
|
7182 glyph_to_pixel_translation (struct window *w, int char_x, int char_y,
|
|
|
7183 int *pix_x, int *pix_y)
|
|
|
7184 {
|
|
|
7185 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
7186 int num_disp_lines, modeline;
|
|
272
|
7187 Lisp_Object window;
|
|
0
|
7188 int defheight, defwidth;
|
|
|
7189
|
|
|
7190 XSETWINDOW (window, w);
|
|
|
7191 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
7192
|
|
|
7193 /* If we get a bogus value indicating somewhere above or to the left of
|
|
|
7194 the window, use the first window line or character position
|
|
|
7195 instead. */
|
|
|
7196 if (char_y < 0)
|
|
|
7197 char_y = 0;
|
|
|
7198 if (char_x < 0)
|
|
|
7199 char_x = 0;
|
|
|
7200
|
|
|
7201 num_disp_lines = Dynarr_length (dla);
|
|
|
7202 modeline = 0;
|
|
|
7203 if (num_disp_lines)
|
|
|
7204 {
|
|
|
7205 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
7206 {
|
|
|
7207 num_disp_lines--;
|
|
|
7208 modeline = 1;
|
|
|
7209 }
|
|
|
7210 }
|
|
|
7211
|
|
|
7212 /* First check if the y position intersects the display lines. */
|
|
|
7213 if (char_y < num_disp_lines)
|
|
|
7214 {
|
|
|
7215 struct display_line *dl = Dynarr_atp (dla, char_y + modeline);
|
|
|
7216 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
7217
|
|
|
7218 *pix_y = (dl->ypos - dl->ascent +
|
|
|
7219 ((unsigned int) (dl->ascent + dl->descent - dl->clip) >> 1));
|
|
|
7220
|
|
|
7221 if (char_x < Dynarr_length (db->runes))
|
|
|
7222 {
|
|
|
7223 struct rune *rb = Dynarr_atp (db->runes, char_x);
|
|
|
7224
|
|
|
7225 *pix_x = rb->xpos + (rb->width >> 1);
|
|
|
7226 }
|
|
|
7227 else
|
|
|
7228 {
|
|
|
7229 int last_rune = Dynarr_length (db->runes) - 1;
|
|
|
7230 struct rune *rb = Dynarr_atp (db->runes, last_rune);
|
|
|
7231
|
|
|
7232 char_x -= last_rune;
|
|
|
7233
|
|
|
7234 *pix_x = rb->xpos + rb->width;
|
|
|
7235 *pix_x += ((char_x - 1) * defwidth);
|
|
|
7236 *pix_x += (defwidth >> 1);
|
|
|
7237 }
|
|
|
7238 }
|
|
|
7239 else
|
|
|
7240 {
|
|
|
7241 /* It didn't intersect, so extrapolate. #### For now, we include the
|
|
|
7242 modeline in this since we don't have true character positions in
|
|
|
7243 it. */
|
|
|
7244
|
|
|
7245 if (!Dynarr_length (w->face_cachels))
|
|
|
7246 reset_face_cachels (w);
|
|
|
7247
|
|
|
7248 char_y -= num_disp_lines;
|
|
|
7249
|
|
|
7250 if (Dynarr_length (dla))
|
|
|
7251 {
|
|
|
7252 struct display_line *dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
7253 *pix_y = dl->ypos + dl->descent - dl->clip;
|
|
|
7254 }
|
|
|
7255 else
|
|
|
7256 *pix_y = WINDOW_TEXT_TOP (w);
|
|
|
7257
|
|
|
7258 *pix_y += (char_y * defheight);
|
|
|
7259 *pix_y += (defheight >> 1);
|
|
|
7260
|
|
|
7261 *pix_x = WINDOW_TEXT_LEFT (w);
|
|
|
7262 /* Don't adjust by one because this is still the unadjusted value. */
|
|
|
7263 *pix_x += (char_x * defwidth);
|
|
|
7264 *pix_x += (defwidth >> 1);
|
|
|
7265 }
|
|
|
7266
|
|
|
7267 if (*pix_x > w->pixel_left + w->pixel_width)
|
|
185
|
7268 *pix_x = w->pixel_left + w->pixel_width;
|
|
0
|
7269 if (*pix_y > w->pixel_top + w->pixel_height)
|
|
185
|
7270 *pix_y = w->pixel_top + w->pixel_height;
|
|
0
|
7271
|
|
|
7272 *pix_x -= w->pixel_left;
|
|
|
7273 *pix_y -= w->pixel_top;
|
|
|
7274 }
|
|
|
7275
|
|
|
7276 /* Given a display line and a position, determine if there is a glyph
|
|
|
7277 there and return information about it if there is. */
|
|
|
7278
|
|
|
7279 static void
|
|
|
7280 get_position_object (struct display_line *dl, Lisp_Object *obj1,
|
|
|
7281 Lisp_Object *obj2, int x_coord, int *low_x_coord,
|
|
|
7282 int *high_x_coord)
|
|
|
7283 {
|
|
|
7284 struct display_block *db;
|
|
|
7285 int elt;
|
|
|
7286 int block =
|
|
|
7287 get_next_display_block (dl->bounds, dl->display_blocks, x_coord, 0);
|
|
|
7288
|
|
|
7289 /* We use get_next_display_block to get the actual display block
|
|
|
7290 that would be displayed at x_coord. */
|
|
|
7291
|
|
|
7292 if (block == NO_BLOCK)
|
|
|
7293 return;
|
|
|
7294 else
|
|
|
7295 db = Dynarr_atp (dl->display_blocks, block);
|
|
|
7296
|
|
|
7297 for (elt = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
7298 {
|
|
|
7299 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
7300
|
|
|
7301 if (rb->xpos <= x_coord && x_coord < (rb->xpos + rb->width))
|
|
|
7302 {
|
|
|
7303 if (rb->type == RUNE_DGLYPH)
|
|
|
7304 {
|
|
|
7305 *obj1 = rb->object.dglyph.glyph;
|
|
|
7306 *obj2 = rb->object.dglyph.extent;
|
|
|
7307 }
|
|
|
7308 else
|
|
|
7309 {
|
|
|
7310 *obj1 = Qnil;
|
|
|
7311 *obj2 = Qnil;
|
|
|
7312 }
|
|
|
7313
|
|
|
7314 if (low_x_coord)
|
|
|
7315 *low_x_coord = rb->xpos;
|
|
|
7316 if (high_x_coord)
|
|
|
7317 *high_x_coord = rb->xpos + rb->width;
|
|
|
7318
|
|
|
7319 return;
|
|
|
7320 }
|
|
|
7321 }
|
|
|
7322 }
|
|
|
7323
|
|
|
7324 #define UPDATE_CACHE_RETURN \
|
|
|
7325 do { \
|
|
|
7326 d->pixel_to_glyph_cache.valid = 1; \
|
|
|
7327 d->pixel_to_glyph_cache.low_x_coord = low_x_coord; \
|
|
|
7328 d->pixel_to_glyph_cache.high_x_coord = high_x_coord; \
|
|
|
7329 d->pixel_to_glyph_cache.low_y_coord = low_y_coord; \
|
|
|
7330 d->pixel_to_glyph_cache.high_y_coord = high_y_coord; \
|
|
|
7331 d->pixel_to_glyph_cache.frame = f; \
|
|
|
7332 d->pixel_to_glyph_cache.col = *col; \
|
|
|
7333 d->pixel_to_glyph_cache.row = *row; \
|
|
|
7334 d->pixel_to_glyph_cache.obj_x = *obj_x; \
|
|
|
7335 d->pixel_to_glyph_cache.obj_y = *obj_y; \
|
|
|
7336 d->pixel_to_glyph_cache.w = *w; \
|
|
|
7337 d->pixel_to_glyph_cache.bufpos = *bufpos; \
|
|
|
7338 d->pixel_to_glyph_cache.closest = *closest; \
|
|
|
7339 d->pixel_to_glyph_cache.modeline_closest = *modeline_closest; \
|
|
|
7340 d->pixel_to_glyph_cache.obj1 = *obj1; \
|
|
|
7341 d->pixel_to_glyph_cache.obj2 = *obj2; \
|
|
|
7342 d->pixel_to_glyph_cache.retval = position; \
|
|
380
|
7343 RETURN_SANS_WARNINGS position; \
|
|
0
|
7344 } while (0)
|
|
|
7345
|
|
|
7346 /* Given x and y coordinates in pixels relative to a frame, return
|
|
|
7347 information about what is located under those coordinates.
|
|
|
7348
|
|
|
7349 The return value will be one of:
|
|
|
7350
|
|
|
7351 OVER_TOOLBAR: over one of the 4 frame toolbars
|
|
|
7352 OVER_MODELINE: over a modeline
|
|
|
7353 OVER_BORDER: over an internal border
|
|
|
7354 OVER_NOTHING: over the text area, but not over text
|
|
|
7355 OVER_OUTSIDE: outside of the frame border
|
|
|
7356 OVER_TEXT: over text in the text area
|
|
|
7357
|
|
|
7358 OBJ1 is one of
|
|
|
7359
|
|
|
7360 -- a toolbar button
|
|
|
7361 -- a glyph
|
|
|
7362 -- nil if the coordinates are not over a glyph or a toolbar button.
|
|
|
7363
|
|
|
7364 OBJ2 is one of
|
|
|
7365
|
|
|
7366 -- an extent, if the coordinates are over a glyph in the text area
|
|
|
7367 -- nil otherwise.
|
|
|
7368
|
|
|
7369 If the coordinates are over a glyph, OBJ_X and OBJ_Y give the
|
|
|
7370 equivalent coordinates relative to the upper-left corner of the glyph.
|
|
|
7371
|
|
|
7372 If the coordinates are over a character, OBJ_X and OBJ_Y give the
|
|
|
7373 equivalent coordinates relative to the upper-left corner of the character.
|
|
|
7374
|
|
|
7375 Otherwise, OBJ_X and OBJ_Y are undefined.
|
|
|
7376 */
|
|
|
7377
|
|
|
7378 int
|
|
|
7379 pixel_to_glyph_translation (struct frame *f, int x_coord, int y_coord,
|
|
|
7380 int *col, int *row, int *obj_x, int *obj_y,
|
|
|
7381 struct window **w, Bufpos *bufpos,
|
|
|
7382 Bufpos *closest, Charcount *modeline_closest,
|
|
|
7383 Lisp_Object *obj1, Lisp_Object *obj2)
|
|
|
7384 {
|
|
|
7385 struct device *d;
|
|
|
7386 struct pixel_to_glyph_translation_cache *cache;
|
|
|
7387 Lisp_Object window;
|
|
|
7388 int frm_left, frm_right, frm_top, frm_bottom;
|
|
|
7389 int low_x_coord, high_x_coord, low_y_coord, high_y_coord;
|
|
|
7390 int position = OVER_NOTHING;
|
|
|
7391 int device_check_failed = 0;
|
|
|
7392 display_line_dynarr *dla;
|
|
|
7393
|
|
|
7394 /* This is a safety valve in case this got called with a frame in
|
|
|
7395 the middle of being deleted. */
|
|
|
7396 if (!DEVICEP (f->device) || !DEVICE_LIVE_P (XDEVICE (f->device)))
|
|
173
|
7397 {
|
|
|
7398 device_check_failed = 1;
|
|
|
7399 d = NULL, cache = NULL; /* Warning suppression */
|
|
|
7400 }
|
|
0
|
7401 else
|
|
|
7402 {
|
|
|
7403 d = XDEVICE (f->device);
|
|
|
7404 cache = &d->pixel_to_glyph_cache;
|
|
|
7405 }
|
|
|
7406
|
|
|
7407 if (!device_check_failed
|
|
|
7408 && cache->valid
|
|
|
7409 && cache->frame == f
|
|
|
7410 && cache->low_x_coord <= x_coord
|
|
|
7411 && cache->high_x_coord > x_coord
|
|
|
7412 && cache->low_y_coord <= y_coord
|
|
|
7413 && cache->high_y_coord > y_coord)
|
|
|
7414 {
|
|
|
7415 *col = cache->col;
|
|
|
7416 *row = cache->row;
|
|
|
7417 *obj_x = cache->obj_x;
|
|
|
7418 *obj_y = cache->obj_y;
|
|
|
7419 *w = cache->w;
|
|
|
7420 *bufpos = cache->bufpos;
|
|
|
7421 *closest = cache->closest;
|
|
|
7422 *modeline_closest = cache->modeline_closest;
|
|
|
7423 *obj1 = cache->obj1;
|
|
|
7424 *obj2 = cache->obj2;
|
|
|
7425
|
|
|
7426 return cache->retval;
|
|
|
7427 }
|
|
|
7428 else
|
|
|
7429 {
|
|
|
7430 *col = 0;
|
|
|
7431 *row = 0;
|
|
|
7432 *obj_x = 0;
|
|
|
7433 *obj_y = 0;
|
|
|
7434 *w = 0;
|
|
|
7435 *bufpos = 0;
|
|
|
7436 *closest = 0;
|
|
|
7437 *modeline_closest = -1;
|
|
|
7438 *obj1 = Qnil;
|
|
|
7439 *obj2 = Qnil;
|
|
|
7440
|
|
|
7441 low_x_coord = x_coord;
|
|
|
7442 high_x_coord = x_coord + 1;
|
|
|
7443 low_y_coord = y_coord;
|
|
|
7444 high_y_coord = y_coord + 1;
|
|
|
7445 }
|
|
|
7446
|
|
|
7447 if (device_check_failed)
|
|
|
7448 return OVER_NOTHING;
|
|
|
7449
|
|
|
7450 frm_left = FRAME_LEFT_BORDER_END (f);
|
|
|
7451 frm_right = FRAME_RIGHT_BORDER_START (f);
|
|
|
7452 frm_top = FRAME_TOP_BORDER_END (f);
|
|
|
7453 frm_bottom = FRAME_BOTTOM_BORDER_START (f);
|
|
|
7454
|
|
|
7455 /* Check if the mouse is outside of the text area actually used by
|
|
|
7456 redisplay. */
|
|
|
7457 if (y_coord < frm_top)
|
|
|
7458 {
|
|
|
7459 if (y_coord >= FRAME_TOP_BORDER_START (f))
|
|
|
7460 {
|
|
|
7461 low_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
7462 high_y_coord = frm_top;
|
|
|
7463 position = OVER_BORDER;
|
|
|
7464 }
|
|
|
7465 else if (y_coord >= 0)
|
|
|
7466 {
|
|
|
7467 low_y_coord = 0;
|
|
|
7468 high_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
7469 position = OVER_TOOLBAR;
|
|
|
7470 }
|
|
|
7471 else
|
|
|
7472 {
|
|
|
7473 low_y_coord = y_coord;
|
|
|
7474 high_y_coord = 0;
|
|
|
7475 position = OVER_OUTSIDE;
|
|
|
7476 }
|
|
|
7477 }
|
|
|
7478 else if (y_coord >= frm_bottom)
|
|
|
7479 {
|
|
|
7480 if (y_coord < FRAME_BOTTOM_BORDER_END (f))
|
|
|
7481 {
|
|
|
7482 low_y_coord = frm_bottom;
|
|
|
7483 high_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
7484 position = OVER_BORDER;
|
|
|
7485 }
|
|
|
7486 else if (y_coord < FRAME_PIXHEIGHT (f))
|
|
|
7487 {
|
|
|
7488 low_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
7489 high_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
7490 position = OVER_TOOLBAR;
|
|
|
7491 }
|
|
|
7492 else
|
|
|
7493 {
|
|
|
7494 low_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
7495 high_y_coord = y_coord;
|
|
|
7496 position = OVER_OUTSIDE;
|
|
|
7497 }
|
|
|
7498 }
|
|
|
7499
|
|
|
7500 if (position != OVER_TOOLBAR && position != OVER_BORDER)
|
|
|
7501 {
|
|
|
7502 if (x_coord < frm_left)
|
|
|
7503 {
|
|
|
7504 if (x_coord >= FRAME_LEFT_BORDER_START (f))
|
|
|
7505 {
|
|
|
7506 low_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
7507 high_x_coord = frm_left;
|
|
|
7508 position = OVER_BORDER;
|
|
|
7509 }
|
|
|
7510 else if (x_coord >= 0)
|
|
|
7511 {
|
|
|
7512 low_x_coord = 0;
|
|
|
7513 high_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
7514 position = OVER_TOOLBAR;
|
|
|
7515 }
|
|
|
7516 else
|
|
|
7517 {
|
|
|
7518 low_x_coord = x_coord;
|
|
|
7519 high_x_coord = 0;
|
|
|
7520 position = OVER_OUTSIDE;
|
|
|
7521 }
|
|
|
7522 }
|
|
|
7523 else if (x_coord >= frm_right)
|
|
|
7524 {
|
|
|
7525 if (x_coord < FRAME_RIGHT_BORDER_END (f))
|
|
|
7526 {
|
|
|
7527 low_x_coord = frm_right;
|
|
|
7528 high_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
7529 position = OVER_BORDER;
|
|
|
7530 }
|
|
|
7531 else if (x_coord < FRAME_PIXWIDTH (f))
|
|
|
7532 {
|
|
|
7533 low_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
7534 high_x_coord = FRAME_PIXWIDTH (f);
|
|
|
7535 position = OVER_TOOLBAR;
|
|
|
7536 }
|
|
|
7537 else
|
|
|
7538 {
|
|
|
7539 low_x_coord = FRAME_PIXWIDTH (f);
|
|
|
7540 high_x_coord = x_coord;
|
|
|
7541 position = OVER_OUTSIDE;
|
|
|
7542 }
|
|
|
7543 }
|
|
|
7544 }
|
|
|
7545
|
|
|
7546 #ifdef HAVE_TOOLBARS
|
|
|
7547 if (position == OVER_TOOLBAR)
|
|
|
7548 {
|
|
|
7549 *obj1 = toolbar_button_at_pixpos (f, x_coord, y_coord);
|
|
|
7550 *obj2 = Qnil;
|
|
|
7551 *w = 0;
|
|
|
7552 UPDATE_CACHE_RETURN;
|
|
|
7553 }
|
|
183
|
7554 #endif /* HAVE_TOOLBARS */
|
|
0
|
7555
|
|
|
7556 /* We still have to return the window the pointer is next to and its
|
|
|
7557 relative y position even if it is outside the x boundary. */
|
|
|
7558 if (x_coord < frm_left)
|
|
|
7559 x_coord = frm_left;
|
|
|
7560 else if (x_coord > frm_right)
|
|
|
7561 x_coord = frm_right;
|
|
|
7562
|
|
|
7563 /* Same in reverse. */
|
|
|
7564 if (y_coord < frm_top)
|
|
|
7565 y_coord = frm_top;
|
|
|
7566 else if (y_coord > frm_bottom)
|
|
|
7567 y_coord = frm_bottom;
|
|
|
7568
|
|
|
7569 /* Find what window the given coordinates are actually in. */
|
|
|
7570 window = f->root_window;
|
|
|
7571 *w = find_window_by_pixel_pos (x_coord, y_coord, window);
|
|
|
7572
|
|
|
7573 /* If we didn't find a window, we're done. */
|
|
|
7574 if (!*w)
|
|
|
7575 {
|
|
|
7576 UPDATE_CACHE_RETURN;
|
|
|
7577 }
|
|
|
7578 else if (position != OVER_NOTHING)
|
|
|
7579 {
|
|
|
7580 *closest = 0;
|
|
|
7581 *modeline_closest = -1;
|
|
|
7582
|
|
|
7583 if (high_y_coord <= frm_top || high_y_coord >= frm_bottom)
|
|
|
7584 {
|
|
|
7585 *w = 0;
|
|
|
7586 UPDATE_CACHE_RETURN;
|
|
|
7587 }
|
|
|
7588 }
|
|
|
7589
|
|
|
7590 /* Check if the window is a minibuffer but isn't active. */
|
|
|
7591 if (MINI_WINDOW_P (*w) && !minibuf_level)
|
|
|
7592 {
|
|
|
7593 /* Must reset the window value since some callers will ignore
|
|
|
7594 the return value if it is set. */
|
|
|
7595 *w = 0;
|
|
|
7596 UPDATE_CACHE_RETURN;
|
|
|
7597 }
|
|
|
7598
|
|
284
|
7599 /* See if the point is over window vertical divider */
|
|
|
7600 if (window_needs_vertical_divider (*w))
|
|
|
7601 {
|
|
|
7602 int div_x_high = WINDOW_RIGHT (*w);
|
|
|
7603 int div_x_low = div_x_high - window_divider_width (*w);
|
|
|
7604 int div_y_high = WINDOW_BOTTOM (*w);
|
|
|
7605 int div_y_low = WINDOW_TOP (*w);
|
|
|
7606
|
|
|
7607 if (div_x_low < x_coord && x_coord <= div_x_high &&
|
|
|
7608 div_y_low < y_coord && y_coord <= div_y_high)
|
|
|
7609 {
|
|
|
7610 low_x_coord = div_x_low;
|
|
|
7611 high_x_coord = div_x_high;
|
|
|
7612 low_y_coord = div_y_low;
|
|
|
7613 high_y_coord = div_y_high;
|
|
|
7614 position = OVER_V_DIVIDER;
|
|
|
7615 UPDATE_CACHE_RETURN;
|
|
|
7616 }
|
|
|
7617 }
|
|
|
7618
|
|
0
|
7619 dla = window_display_lines (*w, CURRENT_DISP);
|
|
|
7620
|
|
|
7621 for (*row = 0; *row < Dynarr_length (dla); (*row)++)
|
|
|
7622 {
|
|
|
7623 int really_over_nothing = 0;
|
|
|
7624 struct display_line *dl = Dynarr_atp (dla, *row);
|
|
|
7625
|
|
|
7626 if ((int) (dl->ypos - dl->ascent) <= y_coord
|
|
|
7627 && y_coord <= (int) (dl->ypos + dl->descent))
|
|
|
7628 {
|
|
|
7629 int check_margin_glyphs = 0;
|
|
|
7630 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
7631 struct rune *rb = 0;
|
|
|
7632
|
|
|
7633 if (x_coord < dl->bounds.left_white
|
|
|
7634 || x_coord >= dl->bounds.right_white)
|
|
|
7635 check_margin_glyphs = 1;
|
|
|
7636
|
|
|
7637 low_y_coord = dl->ypos - dl->ascent;
|
|
|
7638 high_y_coord = dl->ypos + dl->descent + 1;
|
|
|
7639
|
|
|
7640 if (position == OVER_BORDER
|
|
|
7641 || position == OVER_OUTSIDE
|
|
|
7642 || check_margin_glyphs)
|
|
|
7643 {
|
|
|
7644 int x_check, left_bound;
|
|
|
7645
|
|
|
7646 if (check_margin_glyphs)
|
|
|
7647 {
|
|
|
7648 x_check = x_coord;
|
|
|
7649 left_bound = dl->bounds.left_white;
|
|
|
7650 }
|
|
|
7651 else
|
|
|
7652 {
|
|
|
7653 x_check = high_x_coord;
|
|
|
7654 left_bound = frm_left;
|
|
|
7655 }
|
|
|
7656
|
|
|
7657 if (Dynarr_length (db->runes))
|
|
|
7658 {
|
|
|
7659 if (x_check <= left_bound)
|
|
|
7660 {
|
|
|
7661 if (dl->modeline)
|
|
|
7662 *modeline_closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
7663 else
|
|
|
7664 *closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
7665 }
|
|
|
7666 else
|
|
|
7667 {
|
|
|
7668 if (dl->modeline)
|
|
|
7669 *modeline_closest =
|
|
|
7670 Dynarr_atp (db->runes,
|
|
|
7671 Dynarr_length (db->runes) - 1)->bufpos;
|
|
|
7672 else
|
|
|
7673 *closest =
|
|
|
7674 Dynarr_atp (db->runes,
|
|
183
|
7675 Dynarr_length (db->runes) - 1)->bufpos;
|
|
0
|
7676 }
|
|
|
7677
|
|
|
7678 if (dl->modeline)
|
|
|
7679 *modeline_closest += dl->offset;
|
|
|
7680 else
|
|
|
7681 *closest += dl->offset;
|
|
|
7682 }
|
|
|
7683 else
|
|
|
7684 {
|
|
|
7685 /* #### What should be here. */
|
|
|
7686 if (dl->modeline)
|
|
|
7687 *modeline_closest = 0;
|
|
|
7688 else
|
|
|
7689 *closest = 0;
|
|
|
7690 }
|
|
|
7691
|
|
|
7692 if (check_margin_glyphs)
|
|
|
7693 {
|
|
|
7694 if (x_coord < dl->bounds.left_in
|
|
|
7695 || x_coord >= dl->bounds.right_in)
|
|
|
7696 {
|
|
|
7697 /* If we are over the outside margins then we
|
|
|
7698 know the loop over the text block isn't going
|
|
|
7699 to accomplish anything. So we go ahead and
|
|
|
7700 set what information we can right here and
|
|
|
7701 return. */
|
|
|
7702 (*row)--;
|
|
|
7703 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
7704 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
7705 &low_x_coord, &high_x_coord);
|
|
|
7706
|
|
|
7707 UPDATE_CACHE_RETURN;
|
|
|
7708 }
|
|
|
7709 }
|
|
|
7710 else
|
|
|
7711 UPDATE_CACHE_RETURN;
|
|
|
7712 }
|
|
|
7713
|
|
|
7714 for (*col = 0; *col <= Dynarr_length (db->runes); (*col)++)
|
|
|
7715 {
|
|
|
7716 int past_end = (*col == Dynarr_length (db->runes));
|
|
|
7717
|
|
|
7718 if (!past_end)
|
|
|
7719 rb = Dynarr_atp (db->runes, *col);
|
|
|
7720
|
|
|
7721 if (past_end ||
|
|
|
7722 (rb->xpos <= x_coord && x_coord < rb->xpos + rb->width))
|
|
|
7723 {
|
|
|
7724 if (past_end)
|
|
|
7725 {
|
|
|
7726 (*col)--;
|
|
|
7727 rb = Dynarr_atp (db->runes, *col);
|
|
|
7728 }
|
|
|
7729
|
|
|
7730 *bufpos = rb->bufpos + dl->offset;
|
|
|
7731 low_x_coord = rb->xpos;
|
|
|
7732 high_x_coord = rb->xpos + rb->width;
|
|
|
7733
|
|
|
7734 if (rb->type == RUNE_DGLYPH)
|
|
|
7735 {
|
|
|
7736 int elt = *col + 1;
|
|
|
7737
|
|
|
7738 /* Find the first character after the glyph. */
|
|
|
7739 while (elt < Dynarr_length (db->runes))
|
|
|
7740 {
|
|
|
7741 if (Dynarr_atp (db->runes, elt)->type != RUNE_DGLYPH)
|
|
|
7742 {
|
|
|
7743 if (dl->modeline)
|
|
|
7744 *modeline_closest =
|
|
|
7745 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
7746 dl->offset);
|
|
|
7747 else
|
|
|
7748 *closest =
|
|
|
7749 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
7750 dl->offset);
|
|
|
7751 break;
|
|
|
7752 }
|
|
|
7753
|
|
|
7754 elt++;
|
|
|
7755 }
|
|
|
7756
|
|
|
7757 /* In this case we failed to find a non-glyph
|
|
|
7758 character so we return the last position
|
|
|
7759 displayed on the line. */
|
|
|
7760 if (elt == Dynarr_length (db->runes))
|
|
|
7761 {
|
|
|
7762 if (dl->modeline)
|
|
|
7763 *modeline_closest = dl->end_bufpos + dl->offset;
|
|
|
7764 else
|
|
|
7765 *closest = dl->end_bufpos + dl->offset;
|
|
|
7766 really_over_nothing = 1;
|
|
183
|
7767 }
|
|
0
|
7768 }
|
|
|
7769 else
|
|
|
7770 {
|
|
|
7771 if (dl->modeline)
|
|
|
7772 *modeline_closest = rb->bufpos + dl->offset;
|
|
|
7773 else
|
|
|
7774 *closest = rb->bufpos + dl->offset;
|
|
|
7775 }
|
|
|
7776
|
|
|
7777 if (dl->modeline)
|
|
|
7778 {
|
|
|
7779 *row = window_displayed_height (*w);
|
|
|
7780
|
|
|
7781 if (position == OVER_NOTHING)
|
|
|
7782 position = OVER_MODELINE;
|
|
|
7783
|
|
|
7784 if (rb->type == RUNE_DGLYPH)
|
|
|
7785 {
|
|
|
7786 *obj1 = rb->object.dglyph.glyph;
|
|
|
7787 *obj2 = rb->object.dglyph.extent;
|
|
|
7788 }
|
|
|
7789 else if (rb->type == RUNE_CHAR)
|
|
|
7790 {
|
|
|
7791 *obj1 = Qnil;
|
|
|
7792 *obj2 = Qnil;
|
|
|
7793 }
|
|
|
7794 else
|
|
|
7795 {
|
|
|
7796 *obj1 = Qnil;
|
|
|
7797 *obj2 = Qnil;
|
|
|
7798 }
|
|
|
7799
|
|
|
7800 UPDATE_CACHE_RETURN;
|
|
|
7801 }
|
|
|
7802 else if (past_end
|
|
|
7803 || (rb->type == RUNE_CHAR
|
|
|
7804 && rb->object.chr.ch == '\n'))
|
|
|
7805 {
|
|
|
7806 (*row)--;
|
|
|
7807 /* At this point we may have glyphs in the right
|
|
|
7808 inside margin. */
|
|
|
7809 if (check_margin_glyphs)
|
|
|
7810 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
7811 &low_x_coord, &high_x_coord);
|
|
|
7812 UPDATE_CACHE_RETURN;
|
|
|
7813 }
|
|
|
7814 else
|
|
|
7815 {
|
|
|
7816 (*row)--;
|
|
|
7817 if (rb->type == RUNE_DGLYPH)
|
|
|
7818 {
|
|
|
7819 *obj1 = rb->object.dglyph.glyph;
|
|
|
7820 *obj2 = rb->object.dglyph.extent;
|
|
|
7821 }
|
|
|
7822 else if (rb->type == RUNE_CHAR)
|
|
|
7823 {
|
|
|
7824 *obj1 = Qnil;
|
|
|
7825 *obj2 = Qnil;
|
|
|
7826 }
|
|
|
7827 else
|
|
|
7828 {
|
|
|
7829 *obj1 = Qnil;
|
|
|
7830 *obj2 = Qnil;
|
|
|
7831 }
|
|
|
7832
|
|
|
7833 *obj_x = x_coord - rb->xpos;
|
|
|
7834 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
7835
|
|
|
7836 /* At this point we may have glyphs in the left
|
|
|
7837 inside margin. */
|
|
|
7838 if (check_margin_glyphs)
|
|
|
7839 get_position_object (dl, obj1, obj2, x_coord, 0, 0);
|
|
|
7840
|
|
|
7841 if (position == OVER_NOTHING && !really_over_nothing)
|
|
|
7842 position = OVER_TEXT;
|
|
|
7843
|
|
|
7844 UPDATE_CACHE_RETURN;
|
|
|
7845 }
|
|
|
7846 }
|
|
|
7847 }
|
|
|
7848 }
|
|
|
7849 }
|
|
|
7850
|
|
|
7851 *row = Dynarr_length (dla) - 1;
|
|
|
7852 if (FRAME_WIN_P (f))
|
|
|
7853 {
|
|
|
7854 int bot_elt = Dynarr_length (dla) - 1;
|
|
|
7855
|
|
|
7856 if (bot_elt >= 0)
|
|
|
7857 {
|
|
|
7858 struct display_line *dl = Dynarr_atp (dla, bot_elt);
|
|
|
7859 int adj_area = y_coord - (dl->ypos + dl->descent);
|
|
272
|
7860 Lisp_Object lwin;
|
|
0
|
7861 int defheight;
|
|
|
7862
|
|
|
7863 XSETWINDOW (lwin, *w);
|
|
|
7864 default_face_height_and_width (lwin, 0, &defheight);
|
|
|
7865
|
|
|
7866 *row += (adj_area / defheight);
|
|
|
7867 }
|
|
|
7868 }
|
|
|
7869
|
|
|
7870 /* #### This should be checked out some more to determine what
|
|
|
7871 should really be going on. */
|
|
|
7872 if (!MARKERP ((*w)->start[CURRENT_DISP]))
|
|
|
7873 *closest = 0;
|
|
|
7874 else
|
|
412
|
7875 *closest = end_of_last_line (*w,
|
|
0
|
7876 marker_position ((*w)->start[CURRENT_DISP]));
|
|
|
7877 *col = 0;
|
|
|
7878 UPDATE_CACHE_RETURN;
|
|
|
7879 }
|
|
|
7880 #undef UPDATE_CACHE_RETURN
|
|
|
7881
|
|
|
7882
|
|
|
7883 /***************************************************************************/
|
|
|
7884 /* */
|
|
|
7885 /* Lisp functions */
|
|
|
7886 /* */
|
|
|
7887 /***************************************************************************/
|
|
|
7888
|
|
20
|
7889 DEFUN ("redisplay-echo-area", Fredisplay_echo_area, 0, 0, 0, /*
|
|
0
|
7890 Ensure that all minibuffers are correctly showing the echo area.
|
|
20
|
7891 */
|
|
|
7892 ())
|
|
0
|
7893 {
|
|
|
7894 Lisp_Object devcons, concons;
|
|
|
7895
|
|
|
7896 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
7897 {
|
|
|
7898 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
7899 Lisp_Object frmcons;
|
|
|
7900
|
|
|
7901 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
7902 {
|
|
|
7903 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
7904
|
|
108
|
7905 if (FRAME_REPAINT_P (f) && FRAME_HAS_MINIBUF_P (f))
|
|
0
|
7906 {
|
|
|
7907 Lisp_Object window = FRAME_MINIBUF_WINDOW (f);
|
|
215
|
7908 /*
|
|
217
|
7909 * If the frame size has changed, there may be random
|
|
|
7910 * chud on the screen left from previous messages
|
|
|
7911 * because redisplay_frame hasn't been called yet.
|
|
|
7912 * Clear the screen to get rid of the potential mess.
|
|
215
|
7913 */
|
|
217
|
7914 if (f->echo_area_garbaged)
|
|
|
7915 {
|
|
412
|
7916 DEVMETH (d, clear_frame, (f));
|
|
217
|
7917 f->echo_area_garbaged = 0;
|
|
|
7918 }
|
|
0
|
7919 redisplay_window (window, 0);
|
|
|
7920 call_redisplay_end_triggers (XWINDOW (window), 0);
|
|
|
7921 }
|
|
|
7922 }
|
|
412
|
7923
|
|
|
7924 /* We now call the output_end routine for tty frames. We delay
|
|
|
7925 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
7926 encapsulation. */
|
|
|
7927 if (DEVICE_TTY_P (d))
|
|
|
7928 DEVMETH (d, output_end, (d));
|
|
0
|
7929 }
|
|
|
7930
|
|
|
7931 return Qnil;
|
|
|
7932 }
|
|
|
7933
|
|
|
7934 static Lisp_Object
|
|
|
7935 restore_disable_preemption_value (Lisp_Object value)
|
|
|
7936 {
|
|
|
7937 disable_preemption = XINT (value);
|
|
|
7938 return Qnil;
|
|
|
7939 }
|
|
|
7940
|
|
20
|
7941 DEFUN ("redraw-frame", Fredraw_frame, 0, 2, 0, /*
|
|
0
|
7942 Clear frame FRAME and output again what is supposed to appear on it.
|
|
|
7943 FRAME defaults to the selected frame if omitted.
|
|
|
7944 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
7945 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
7946 input and is guaranteed to proceed to completion.
|
|
20
|
7947 */
|
|
|
7948 (frame, no_preempt))
|
|
0
|
7949 {
|
|
|
7950 struct frame *f = decode_frame (frame);
|
|
|
7951 int count = specpdl_depth ();
|
|
|
7952
|
|
|
7953 if (!NILP (no_preempt))
|
|
|
7954 {
|
|
|
7955 record_unwind_protect (restore_disable_preemption_value,
|
|
|
7956 make_int (disable_preemption));
|
|
|
7957 disable_preemption++;
|
|
|
7958 }
|
|
|
7959
|
|
|
7960 f->clear = 1;
|
|
|
7961 redisplay_frame (f, 1);
|
|
|
7962
|
|
|
7963 return unbind_to (count, Qnil);
|
|
|
7964 }
|
|
|
7965
|
|
20
|
7966 DEFUN ("redisplay-frame", Fredisplay_frame, 0, 2, 0, /*
|
|
0
|
7967 Ensure that FRAME's contents are correctly displayed.
|
|
|
7968 This differs from `redraw-frame' in that it only redraws what needs to
|
|
|
7969 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
7970 the frame.
|
|
|
7971 FRAME defaults to the selected frame if omitted.
|
|
|
7972 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
7973 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
7974 input and is guaranteed to proceed to completion.
|
|
20
|
7975 */
|
|
|
7976 (frame, no_preempt))
|
|
0
|
7977 {
|
|
|
7978 struct frame *f = decode_frame (frame);
|
|
|
7979 int count = specpdl_depth ();
|
|
|
7980
|
|
|
7981 if (!NILP (no_preempt))
|
|
|
7982 {
|
|
|
7983 record_unwind_protect (restore_disable_preemption_value,
|
|
|
7984 make_int (disable_preemption));
|
|
|
7985 disable_preemption++;
|
|
|
7986 }
|
|
|
7987
|
|
|
7988 redisplay_frame (f, 1);
|
|
|
7989
|
|
|
7990 return unbind_to (count, Qnil);
|
|
|
7991 }
|
|
|
7992
|
|
20
|
7993 DEFUN ("redraw-device", Fredraw_device, 0, 2, 0, /*
|
|
0
|
7994 Clear device DEVICE and output again what is supposed to appear on it.
|
|
|
7995 DEVICE defaults to the selected device if omitted.
|
|
|
7996 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
7997 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
7998 input and is guaranteed to proceed to completion.
|
|
20
|
7999 */
|
|
70
|
8000 (device, no_preempt))
|
|
0
|
8001 {
|
|
|
8002 struct device *d = decode_device (device);
|
|
|
8003 Lisp_Object frmcons;
|
|
|
8004 int count = specpdl_depth ();
|
|
|
8005
|
|
|
8006 if (!NILP (no_preempt))
|
|
|
8007 {
|
|
|
8008 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8009 make_int (disable_preemption));
|
|
|
8010 disable_preemption++;
|
|
|
8011 }
|
|
|
8012
|
|
|
8013 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
8014 {
|
|
|
8015 XFRAME (XCAR (frmcons))->clear = 1;
|
|
|
8016 }
|
|
412
|
8017 redisplay_device (d);
|
|
404
|
8018
|
|
0
|
8019 return unbind_to (count, Qnil);
|
|
|
8020 }
|
|
|
8021
|
|
20
|
8022 DEFUN ("redisplay-device", Fredisplay_device, 0, 2, 0, /*
|
|
0
|
8023 Ensure that DEVICE's contents are correctly displayed.
|
|
|
8024 This differs from `redraw-device' in that it only redraws what needs to
|
|
|
8025 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
8026 the device.
|
|
|
8027 DEVICE defaults to the selected device if omitted.
|
|
|
8028 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8029 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8030 input and is guaranteed to proceed to completion.
|
|
20
|
8031 */
|
|
|
8032 (device, no_preempt))
|
|
0
|
8033 {
|
|
|
8034 struct device *d = decode_device (device);
|
|
|
8035 int count = specpdl_depth ();
|
|
|
8036
|
|
|
8037 if (!NILP (no_preempt))
|
|
|
8038 {
|
|
|
8039 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8040 make_int (disable_preemption));
|
|
|
8041 disable_preemption++;
|
|
|
8042 }
|
|
|
8043
|
|
412
|
8044 redisplay_device (d);
|
|
404
|
8045
|
|
0
|
8046 return unbind_to (count, Qnil);
|
|
|
8047 }
|
|
|
8048
|
|
|
8049 /* Big lie. Big lie. This will force all modelines to be updated
|
|
|
8050 regardless if the all flag is set or not. It remains in existence
|
|
|
8051 solely for backwards compatibility. */
|
|
20
|
8052 DEFUN ("redraw-modeline", Fredraw_modeline, 0, 1, 0, /*
|
|
0
|
8053 Force the modeline of the current buffer to be redisplayed.
|
|
|
8054 With optional non-nil ALL, force redisplay of all modelines.
|
|
20
|
8055 */
|
|
|
8056 (all))
|
|
0
|
8057 {
|
|
|
8058 MARK_MODELINE_CHANGED;
|
|
|
8059 return Qnil;
|
|
|
8060 }
|
|
|
8061
|
|
20
|
8062 DEFUN ("force-cursor-redisplay", Fforce_cursor_redisplay, 0, 1, 0, /*
|
|
0
|
8063 Force an immediate update of the cursor on FRAME.
|
|
|
8064 FRAME defaults to the selected frame if omitted.
|
|
20
|
8065 */
|
|
70
|
8066 (frame))
|
|
0
|
8067 {
|
|
|
8068 redisplay_redraw_cursor (decode_frame (frame), 1);
|
|
|
8069 return Qnil;
|
|
|
8070 }
|
|
|
8071
|
|
|
8072
|
|
|
8073 /***************************************************************************/
|
|
|
8074 /* */
|
|
|
8075 /* Lisp-variable change triggers */
|
|
|
8076 /* */
|
|
|
8077 /***************************************************************************/
|
|
|
8078
|
|
|
8079 static void
|
|
|
8080 margin_width_changed_in_frame (Lisp_Object specifier, struct frame *f,
|
|
|
8081 Lisp_Object oldval)
|
|
|
8082 {
|
|
|
8083 /* Nothing to be done? */
|
|
|
8084 }
|
|
|
8085
|
|
|
8086 int
|
|
|
8087 redisplay_variable_changed (Lisp_Object sym, Lisp_Object *val,
|
|
|
8088 Lisp_Object in_object, int flags)
|
|
|
8089 {
|
|
|
8090 /* #### clip_changed should really be renamed something like
|
|
|
8091 global_redisplay_change. */
|
|
|
8092 MARK_CLIP_CHANGED;
|
|
|
8093 return 0;
|
|
|
8094 }
|
|
|
8095
|
|
|
8096 void
|
|
|
8097 redisplay_glyph_changed (Lisp_Object glyph, Lisp_Object property,
|
|
|
8098 Lisp_Object locale)
|
|
|
8099 {
|
|
269
|
8100 if (WINDOWP (locale))
|
|
|
8101 {
|
|
380
|
8102 MARK_FRAME_GLYPHS_CHANGED (XFRAME (WINDOW_FRAME (XWINDOW (locale))));
|
|
269
|
8103 }
|
|
|
8104 else if (FRAMEP (locale))
|
|
|
8105 {
|
|
380
|
8106 MARK_FRAME_GLYPHS_CHANGED (XFRAME (locale));
|
|
269
|
8107 }
|
|
|
8108 else if (DEVICEP (locale))
|
|
|
8109 {
|
|
|
8110 Lisp_Object frmcons;
|
|
|
8111 DEVICE_FRAME_LOOP (frmcons, XDEVICE (locale))
|
|
380
|
8112 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
269
|
8113 }
|
|
|
8114 else if (CONSOLEP (locale))
|
|
|
8115 {
|
|
|
8116 Lisp_Object frmcons, devcons;
|
|
|
8117 CONSOLE_FRAME_LOOP_NO_BREAK (frmcons, devcons, XCONSOLE (locale))
|
|
380
|
8118 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
269
|
8119 }
|
|
|
8120 else /* global or buffer */
|
|
|
8121 {
|
|
|
8122 Lisp_Object frmcons, devcons, concons;
|
|
|
8123 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
380
|
8124 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
269
|
8125 }
|
|
0
|
8126 }
|
|
|
8127
|
|
|
8128 static void
|
|
|
8129 text_cursor_visible_p_changed (Lisp_Object specifier, struct window *w,
|
|
|
8130 Lisp_Object oldval)
|
|
|
8131 {
|
|
|
8132 if (XFRAME (w->frame)->init_finished)
|
|
|
8133 Fforce_cursor_redisplay (w->frame);
|
|
|
8134 }
|
|
|
8135
|
|
|
8136 #ifdef MEMORY_USAGE_STATS
|
|
|
8137
|
|
|
8138
|
|
|
8139 /***************************************************************************/
|
|
|
8140 /* */
|
|
|
8141 /* memory usage computation */
|
|
|
8142 /* */
|
|
|
8143 /***************************************************************************/
|
|
|
8144
|
|
|
8145 static int
|
|
|
8146 compute_rune_dynarr_usage (rune_dynarr *dyn, struct overhead_stats *ovstats)
|
|
|
8147 {
|
|
183
|
8148 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
8149 }
|
|
|
8150
|
|
|
8151 static int
|
|
|
8152 compute_display_block_dynarr_usage (display_block_dynarr *dyn,
|
|
|
8153 struct overhead_stats *ovstats)
|
|
|
8154 {
|
|
183
|
8155 int total, i;
|
|
|
8156
|
|
|
8157 if (!dyn)
|
|
|
8158 return 0;
|
|
|
8159
|
|
|
8160 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
8161 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
8162 total += compute_rune_dynarr_usage (Dynarr_at (dyn, i).runes, ovstats);
|
|
0
|
8163
|
|
|
8164 return total;
|
|
|
8165 }
|
|
|
8166
|
|
|
8167 static int
|
|
|
8168 compute_glyph_block_dynarr_usage (glyph_block_dynarr *dyn,
|
|
|
8169 struct overhead_stats *ovstats)
|
|
|
8170 {
|
|
183
|
8171 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
8172 }
|
|
|
8173
|
|
|
8174 int
|
|
|
8175 compute_display_line_dynarr_usage (display_line_dynarr *dyn,
|
|
|
8176 struct overhead_stats *ovstats)
|
|
|
8177 {
|
|
183
|
8178 int total, i;
|
|
|
8179
|
|
|
8180 if (!dyn)
|
|
|
8181 return 0;
|
|
|
8182
|
|
|
8183 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
8184 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
8185 {
|
|
|
8186 struct display_line *dl = &Dynarr_at (dyn, i);
|
|
|
8187 total += compute_display_block_dynarr_usage(dl->display_blocks, ovstats);
|
|
|
8188 total += compute_glyph_block_dynarr_usage (dl->left_glyphs, ovstats);
|
|
|
8189 total += compute_glyph_block_dynarr_usage (dl->right_glyphs, ovstats);
|
|
0
|
8190 }
|
|
|
8191
|
|
|
8192 return total;
|
|
|
8193 }
|
|
|
8194
|
|
|
8195 int
|
|
|
8196 compute_line_start_cache_dynarr_usage (line_start_cache_dynarr *dyn,
|
|
|
8197 struct overhead_stats *ovstats)
|
|
|
8198 {
|
|
183
|
8199 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
8200 }
|
|
|
8201
|
|
|
8202 #endif /* MEMORY_USAGE_STATS */
|
|
|
8203
|
|
|
8204
|
|
|
8205 /***************************************************************************/
|
|
|
8206 /* */
|
|
|
8207 /* initialization */
|
|
|
8208 /* */
|
|
|
8209 /***************************************************************************/
|
|
|
8210
|
|
|
8211 void
|
|
|
8212 init_redisplay (void)
|
|
|
8213 {
|
|
|
8214 disable_preemption = 0;
|
|
|
8215 preemption_count = 0;
|
|
|
8216 max_preempts = INIT_MAX_PREEMPTS;
|
|
|
8217
|
|
|
8218 if (!initialized)
|
|
412
|
8219 {
|
|
|
8220 cmotion_display_lines = Dynarr_new (display_line);
|
|
|
8221 mode_spec_bufbyte_string = Dynarr_new (Bufbyte);
|
|
|
8222 formatted_string_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
8223 formatted_string_extent_dynarr = Dynarr_new (EXTENT);
|
|
|
8224 formatted_string_extent_start_dynarr = Dynarr_new (Bytecount);
|
|
|
8225 formatted_string_extent_end_dynarr = Dynarr_new (Bytecount);
|
|
|
8226 internal_cache = Dynarr_new (line_start_cache);
|
|
|
8227 xzero (formatted_string_display_line);
|
|
0
|
8228 }
|
|
|
8229
|
|
|
8230 /* window system is nil when in -batch mode */
|
|
|
8231 if (!initialized || noninteractive)
|
|
|
8232 return;
|
|
|
8233
|
|
|
8234 /* If the user wants to use a window system, we shouldn't bother
|
|
|
8235 initializing the terminal. This is especially important when the
|
|
|
8236 terminal is so dumb that emacs gives up before and doesn't bother
|
|
|
8237 using the window system.
|
|
|
8238
|
|
|
8239 If the DISPLAY environment variable is set, try to use X, and die
|
|
|
8240 with an error message if that doesn't work. */
|
|
|
8241
|
|
|
8242 #ifdef HAVE_X_WINDOWS
|
|
|
8243 if (!strcmp (display_use, "x"))
|
|
|
8244 {
|
|
|
8245 /* Some stuff checks this way early. */
|
|
|
8246 Vwindow_system = Qx;
|
|
|
8247 Vinitial_window_system = Qx;
|
|
|
8248 return;
|
|
|
8249 }
|
|
183
|
8250 #endif /* HAVE_X_WINDOWS */
|
|
0
|
8251
|
|
213
|
8252 #ifdef HAVE_MS_WINDOWS
|
|
|
8253 if (!strcmp (display_use, "mswindows"))
|
|
209
|
8254 {
|
|
|
8255 /* Some stuff checks this way early. */
|
|
213
|
8256 Vwindow_system = Qmswindows;
|
|
|
8257 Vinitial_window_system = Qmswindows;
|
|
209
|
8258 return;
|
|
|
8259 }
|
|
213
|
8260 #endif /* HAVE_MS_WINDOWS */
|
|
|
8261
|
|
|
8262 #ifdef HAVE_TTY
|
|
0
|
8263 /* If no window system has been specified, try to use the terminal. */
|
|
|
8264 if (!isatty (0))
|
|
|
8265 {
|
|
|
8266 stderr_out ("XEmacs: standard input is not a tty\n");
|
|
|
8267 exit (1);
|
|
|
8268 }
|
|
|
8269
|
|
|
8270 /* Look at the TERM variable */
|
|
|
8271 if (!getenv ("TERM"))
|
|
|
8272 {
|
|
|
8273 stderr_out ("Please set the environment variable TERM; see tset(1).\n");
|
|
|
8274 exit (1);
|
|
|
8275 }
|
|
|
8276
|
|
|
8277 Vinitial_window_system = Qtty;
|
|
213
|
8278 return;
|
|
|
8279 #else /* not HAVE_TTY */
|
|
|
8280 /* No DISPLAY specified, and no TTY support. */
|
|
|
8281 stderr_out ("XEmacs: Cannot open display.\n\
|
|
|
8282 Please set the environmental variable DISPLAY to an appropriate value.\n");
|
|
|
8283 exit (1);
|
|
|
8284 #endif
|
|
|
8285 /* Unreached. */
|
|
0
|
8286 }
|
|
|
8287
|
|
|
8288 void
|
|
|
8289 syms_of_redisplay (void)
|
|
|
8290 {
|
|
|
8291 defsymbol (&Qcursor_in_echo_area, "cursor-in-echo-area");
|
|
|
8292 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
8293 defsymbol (&Qpre_redisplay_hook, "pre-redisplay-hook");
|
|
|
8294 defsymbol (&Qpost_redisplay_hook, "post-redisplay-hook");
|
|
183
|
8295 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
8296 defsymbol (&Qdisplay_warning_buffer, "display-warning-buffer");
|
|
|
8297 defsymbol (&Qbar_cursor, "bar-cursor");
|
|
412
|
8298 defsymbol (&Qwindow_scroll_functions, "window-scroll-functions");
|
|
0
|
8299 defsymbol (&Qredisplay_end_trigger_functions,
|
|
|
8300 "redisplay-end-trigger-functions");
|
|
|
8301
|
|
20
|
8302 DEFSUBR (Fredisplay_echo_area);
|
|
|
8303 DEFSUBR (Fredraw_frame);
|
|
|
8304 DEFSUBR (Fredisplay_frame);
|
|
|
8305 DEFSUBR (Fredraw_device);
|
|
|
8306 DEFSUBR (Fredisplay_device);
|
|
|
8307 DEFSUBR (Fredraw_modeline);
|
|
|
8308 DEFSUBR (Fforce_cursor_redisplay);
|
|
0
|
8309 }
|
|
|
8310
|
|
|
8311 void
|
|
|
8312 vars_of_redisplay (void)
|
|
|
8313 {
|
|
|
8314 #if 0
|
|
|
8315 staticpro (&last_arrow_position);
|
|
|
8316 staticpro (&last_arrow_string);
|
|
|
8317 last_arrow_position = Qnil;
|
|
|
8318 last_arrow_string = Qnil;
|
|
183
|
8319 #endif /* 0 */
|
|
0
|
8320
|
|
412
|
8321 updating_line_start_cache = 0;
|
|
|
8322
|
|
0
|
8323 /* #### Probably temporary */
|
|
|
8324 DEFVAR_INT ("redisplay-cache-adjustment", &cache_adjustment /*
|
|
272
|
8325 \(Temporary) Setting this will impact the performance of the internal
|
|
0
|
8326 line start cache.
|
|
|
8327 */ );
|
|
|
8328 cache_adjustment = 2;
|
|
|
8329
|
|
|
8330 DEFVAR_INT_MAGIC ("pixel-vertical-clip-threshold", &vertical_clip /*
|
|
|
8331 Minimum pixel height for clipped bottom display line.
|
|
|
8332 A clipped line shorter than this won't be displayed.
|
|
|
8333 */ ,
|
|
380
|
8334 redisplay_variable_changed);
|
|
0
|
8335 vertical_clip = 5;
|
|
|
8336
|
|
|
8337 DEFVAR_INT_MAGIC ("pixel-horizontal-clip-threshold", &horizontal_clip /*
|
|
|
8338 Minimum visible area for clipped glyphs at right boundary.
|
|
|
8339 Clipped glyphs shorter than this won't be displayed.
|
|
|
8340 Only pixmap glyph instances are currently allowed to be clipped.
|
|
|
8341 */ ,
|
|
380
|
8342 redisplay_variable_changed);
|
|
0
|
8343 horizontal_clip = 5;
|
|
|
8344
|
|
|
8345 DEFVAR_LISP ("global-mode-string", &Vglobal_mode_string /*
|
|
185
|
8346 String displayed by modeline-format's "%m" specification.
|
|
0
|
8347 */ );
|
|
|
8348 Vglobal_mode_string = Qnil;
|
|
|
8349
|
|
|
8350 DEFVAR_LISP_MAGIC ("overlay-arrow-position", &Voverlay_arrow_position /*
|
|
|
8351 Marker for where to display an arrow on top of the buffer text.
|
|
|
8352 This must be the beginning of a line in order to work.
|
|
|
8353 See also `overlay-arrow-string'.
|
|
380
|
8354 */ ,
|
|
|
8355 redisplay_variable_changed);
|
|
0
|
8356 Voverlay_arrow_position = Qnil;
|
|
|
8357
|
|
|
8358 DEFVAR_LISP_MAGIC ("overlay-arrow-string", &Voverlay_arrow_string /*
|
|
412
|
8359 String to display as an arrow. See also `overlay-arrow-position'.
|
|
0
|
8360 */ ,
|
|
380
|
8361 redisplay_variable_changed);
|
|
0
|
8362 Voverlay_arrow_string = Qnil;
|
|
|
8363
|
|
|
8364 DEFVAR_INT ("scroll-step", &scroll_step /*
|
|
|
8365 *The number of lines to try scrolling a window by when point moves out.
|
|
|
8366 If that fails to bring point back on frame, point is centered instead.
|
|
|
8367 If this is zero, point is always centered after it moves off screen.
|
|
|
8368 */ );
|
|
195
|
8369 scroll_step = 0;
|
|
|
8370
|
|
|
8371 DEFVAR_INT ("scroll-conservatively", &scroll_conservatively /*
|
|
|
8372 *Scroll up to this many lines, to bring point back on screen.
|
|
|
8373 */ );
|
|
|
8374 scroll_conservatively = 0;
|
|
0
|
8375
|
|
|
8376 DEFVAR_BOOL_MAGIC ("truncate-partial-width-windows",
|
|
|
8377 &truncate_partial_width_windows /*
|
|
|
8378 *Non-nil means truncate lines in all windows less than full frame wide.
|
|
|
8379 */ ,
|
|
380
|
8380 redisplay_variable_changed);
|
|
0
|
8381 truncate_partial_width_windows = 1;
|
|
|
8382
|
|
412
|
8383 DEFVAR_BOOL ("visible-bell", &visible_bell /*
|
|
|
8384 *Non-nil means try to flash the frame to represent a bell.
|
|
0
|
8385 */ );
|
|
412
|
8386 visible_bell = 0;
|
|
0
|
8387
|
|
|
8388 DEFVAR_BOOL ("no-redraw-on-reenter", &no_redraw_on_reenter /*
|
|
|
8389 *Non-nil means no need to redraw entire frame after suspending.
|
|
|
8390 A non-nil value is useful if the terminal can automatically preserve
|
|
|
8391 Emacs's frame display when you reenter Emacs.
|
|
|
8392 It is up to you to set this variable if your terminal can do that.
|
|
|
8393 */ );
|
|
|
8394 no_redraw_on_reenter = 0;
|
|
|
8395
|
|
|
8396 DEFVAR_LISP ("window-system", &Vwindow_system /*
|
|
|
8397 A symbol naming the window-system under which Emacs is running,
|
|
|
8398 such as `x', or nil if emacs is running on an ordinary terminal.
|
|
187
|
8399
|
|
|
8400 Do not use this variable, except for GNU Emacs compatibility, as it
|
|
|
8401 gives wrong values in a multi-device environment. Use `console-type'
|
|
|
8402 instead.
|
|
0
|
8403 */ );
|
|
|
8404 Vwindow_system = Qnil;
|
|
|
8405
|
|
|
8406 /* #### Temporary shit until window-system is eliminated. */
|
|
412
|
8407 DEFVAR_LISP ("initial-window-system", &Vinitial_window_system /*
|
|
0
|
8408 DON'T TOUCH
|
|
|
8409 */ );
|
|
|
8410 Vinitial_window_system = Qnil;
|
|
|
8411
|
|
|
8412 DEFVAR_BOOL ("cursor-in-echo-area", &cursor_in_echo_area /*
|
|
|
8413 Non-nil means put cursor in minibuffer, at end of any message there.
|
|
|
8414 */ );
|
|
|
8415 cursor_in_echo_area = 0;
|
|
|
8416
|
|
|
8417 /* #### Shouldn't this be generalized as follows:
|
|
|
8418
|
|
|
8419 if nil, use block cursor.
|
|
|
8420 if a number, use a bar cursor of that width.
|
|
|
8421 Otherwise, use a 1-pixel bar cursor.
|
|
|
8422
|
|
|
8423 #### Or better yet, this variable should be trashed entirely
|
|
|
8424 (use a Lisp-magic variable to maintain compatibility)
|
|
|
8425 and a specifier `cursor-shape' added, which allows a block
|
|
|
8426 cursor, a bar cursor, a flashing block or bar cursor,
|
|
|
8427 maybe a caret cursor, etc. */
|
|
|
8428
|
|
|
8429 DEFVAR_LISP ("bar-cursor", &Vbar_cursor /*
|
|
|
8430 Use vertical bar cursor if non-nil. If t width is 1 pixel, otherwise 2.
|
|
|
8431 */ );
|
|
|
8432 Vbar_cursor = Qnil;
|
|
|
8433
|
|
|
8434 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
8435 xxDEFVAR_LISP ("pre-redisplay-hook", &Vpre_redisplay_hook /*
|
|
|
8436 Function or functions to run before every redisplay.
|
|
412
|
8437 Functions on this hook must be careful to avoid signalling errors!
|
|
0
|
8438 */ );
|
|
|
8439 Vpre_redisplay_hook = Qnil;
|
|
|
8440
|
|
|
8441 xxDEFVAR_LISP ("post-redisplay-hook", &Vpost_redisplay_hook /*
|
|
|
8442 Function or functions to run after every redisplay.
|
|
412
|
8443 Functions on this hook must be careful to avoid signalling errors!
|
|
0
|
8444 */ );
|
|
|
8445 Vpost_redisplay_hook = Qnil;
|
|
183
|
8446 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
8447
|
|
|
8448 DEFVAR_INT ("display-warning-tick", &display_warning_tick /*
|
|
|
8449 Bump this to tell the C code to call `display-warning-buffer'
|
|
|
8450 at next redisplay. You should not normally change this; the function
|
|
|
8451 `display-warning' automatically does this at appropriate times.
|
|
|
8452 */ );
|
|
|
8453 display_warning_tick = 0;
|
|
|
8454
|
|
|
8455 DEFVAR_BOOL ("inhibit-warning-display", &inhibit_warning_display /*
|
|
|
8456 Non-nil means inhibit display of warning messages.
|
|
|
8457 You should *bind* this, not set it. Any pending warning messages
|
|
|
8458 will be displayed when the binding no longer applies.
|
|
|
8459 */ );
|
|
|
8460 /* reset to 0 by startup.el after the splash screen has displayed.
|
|
|
8461 This way, the warnings don't obliterate the splash screen. */
|
|
|
8462 inhibit_warning_display = 1;
|
|
|
8463
|
|
|
8464 DEFVAR_LISP ("window-size-change-functions",
|
|
|
8465 &Vwindow_size_change_functions /*
|
|
|
8466 Not currently implemented.
|
|
|
8467 Functions called before redisplay, if window sizes have changed.
|
|
|
8468 The value should be a list of functions that take one argument.
|
|
|
8469 Just before redisplay, for each frame, if any of its windows have changed
|
|
|
8470 size since the last redisplay, or have been split or deleted,
|
|
|
8471 all the functions in the list are called, with the frame as argument.
|
|
|
8472 */ );
|
|
|
8473 Vwindow_size_change_functions = Qnil;
|
|
|
8474
|
|
|
8475 DEFVAR_LISP ("window-scroll-functions", &Vwindow_scroll_functions /*
|
|
|
8476 Not currently implemented.
|
|
|
8477 Functions to call before redisplaying a window with scrolling.
|
|
|
8478 Each function is called with two arguments, the window
|
|
|
8479 and its new display-start position. Note that the value of `window-end'
|
|
|
8480 is not valid when these functions are called.
|
|
|
8481 */ );
|
|
|
8482 Vwindow_scroll_functions = Qnil;
|
|
|
8483
|
|
|
8484 DEFVAR_LISP ("redisplay-end-trigger-functions",
|
|
|
8485 &Vredisplay_end_trigger_functions /*
|
|
|
8486 See `set-window-redisplay-end-trigger'.
|
|
|
8487 */ );
|
|
|
8488 Vredisplay_end_trigger_functions = Qnil;
|
|
72
|
8489
|
|
|
8490 DEFVAR_BOOL ("column-number-start-at-one", &column_number_start_at_one /*
|
|
142
|
8491 *Non-nil means column display number starts at 1.
|
|
72
|
8492 */ );
|
|
294
|
8493 column_number_start_at_one = 0;
|
|
0
|
8494 }
|
|
|
8495
|
|
|
8496 void
|
|
|
8497 specifier_vars_of_redisplay (void)
|
|
|
8498 {
|
|
|
8499 DEFVAR_SPECIFIER ("left-margin-width", &Vleft_margin_width /*
|
|
|
8500 *Width of left margin.
|
|
|
8501 This is a specifier; use `set-specifier' to change it.
|
|
|
8502 */ );
|
|
|
8503 Vleft_margin_width = Fmake_specifier (Qnatnum);
|
|
183
|
8504 set_specifier_fallback (Vleft_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8505 set_specifier_caching (Vleft_margin_width,
|
|
412
|
8506 slot_offset (struct window, left_margin_width),
|
|
0
|
8507 some_window_value_changed,
|
|
412
|
8508 slot_offset (struct frame, left_margin_width),
|
|
0
|
8509 margin_width_changed_in_frame);
|
|
|
8510
|
|
|
8511 DEFVAR_SPECIFIER ("right-margin-width", &Vright_margin_width /*
|
|
|
8512 *Width of right margin.
|
|
|
8513 This is a specifier; use `set-specifier' to change it.
|
|
|
8514 */ );
|
|
|
8515 Vright_margin_width = Fmake_specifier (Qnatnum);
|
|
183
|
8516 set_specifier_fallback (Vright_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8517 set_specifier_caching (Vright_margin_width,
|
|
412
|
8518 slot_offset (struct window, right_margin_width),
|
|
0
|
8519 some_window_value_changed,
|
|
412
|
8520 slot_offset (struct frame, right_margin_width),
|
|
0
|
8521 margin_width_changed_in_frame);
|
|
|
8522
|
|
|
8523 DEFVAR_SPECIFIER ("minimum-line-ascent", &Vminimum_line_ascent /*
|
|
|
8524 *Minimum ascent height of lines.
|
|
|
8525 This is a specifier; use `set-specifier' to change it.
|
|
|
8526 */ );
|
|
|
8527 Vminimum_line_ascent = Fmake_specifier (Qnatnum);
|
|
183
|
8528 set_specifier_fallback (Vminimum_line_ascent, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8529 set_specifier_caching (Vminimum_line_ascent,
|
|
412
|
8530 slot_offset (struct window, minimum_line_ascent),
|
|
0
|
8531 some_window_value_changed,
|
|
|
8532 0, 0);
|
|
|
8533
|
|
|
8534 DEFVAR_SPECIFIER ("minimum-line-descent", &Vminimum_line_descent /*
|
|
|
8535 *Minimum descent height of lines.
|
|
|
8536 This is a specifier; use `set-specifier' to change it.
|
|
|
8537 */ );
|
|
|
8538 Vminimum_line_descent = Fmake_specifier (Qnatnum);
|
|
183
|
8539 set_specifier_fallback (Vminimum_line_descent, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8540 set_specifier_caching (Vminimum_line_descent,
|
|
412
|
8541 slot_offset (struct window, minimum_line_descent),
|
|
0
|
8542 some_window_value_changed,
|
|
|
8543 0, 0);
|
|
|
8544
|
|
|
8545 DEFVAR_SPECIFIER ("use-left-overflow", &Vuse_left_overflow /*
|
|
|
8546 *Non-nil means use the left outside margin as extra whitespace when
|
|
|
8547 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
8548 This is a specifier; use `set-specifier' to change it.
|
|
|
8549 */ );
|
|
|
8550 Vuse_left_overflow = Fmake_specifier (Qboolean);
|
|
183
|
8551 set_specifier_fallback (Vuse_left_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
0
|
8552 set_specifier_caching (Vuse_left_overflow,
|
|
412
|
8553 slot_offset (struct window, use_left_overflow),
|
|
0
|
8554 some_window_value_changed,
|
|
|
8555 0, 0);
|
|
|
8556
|
|
|
8557 DEFVAR_SPECIFIER ("use-right-overflow", &Vuse_right_overflow /*
|
|
|
8558 *Non-nil means use the right outside margin as extra whitespace when
|
|
|
8559 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
8560 This is a specifier; use `set-specifier' to change it.
|
|
|
8561 */ );
|
|
|
8562 Vuse_right_overflow = Fmake_specifier (Qboolean);
|
|
183
|
8563 set_specifier_fallback (Vuse_right_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
0
|
8564 set_specifier_caching (Vuse_right_overflow,
|
|
412
|
8565 slot_offset (struct window, use_right_overflow),
|
|
0
|
8566 some_window_value_changed,
|
|
|
8567 0, 0);
|
|
|
8568
|
|
|
8569 DEFVAR_SPECIFIER ("text-cursor-visible-p", &Vtext_cursor_visible_p /*
|
|
|
8570 *Non-nil means the text cursor is visible (this is usually the case).
|
|
|
8571 This is a specifier; use `set-specifier' to change it.
|
|
|
8572 */ );
|
|
|
8573 Vtext_cursor_visible_p = Fmake_specifier (Qboolean);
|
|
183
|
8574 set_specifier_fallback (Vtext_cursor_visible_p, list1 (Fcons (Qnil, Qt)));
|
|
0
|
8575 set_specifier_caching (Vtext_cursor_visible_p,
|
|
412
|
8576 slot_offset (struct window, text_cursor_visible_p),
|
|
0
|
8577 text_cursor_visible_p_changed,
|
|
|
8578 0, 0);
|
|
72
|
8579
|
|
0
|
8580 }
|
