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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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43
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44 #include "buffer.h"
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45 #include "commands.h"
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46 #include "debug.h"
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47 #include "device.h"
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48 #include "extents.h"
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49 #include "faces.h"
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50 #include "frame.h"
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51 #include "glyphs.h"
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52 #include "insdel.h"
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53 #include "menubar.h"
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54 #include "objects.h"
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55 #include "process.h"
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56 #include "redisplay.h"
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57 #include "toolbar.h"
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58 #include "window.h"
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211
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59 #include "line-number.h"
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0
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60
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70
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61 #ifdef MULE
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62 #include "mule-coding.h"
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63 #endif
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16
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64
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149
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65 #ifdef HAVE_TTY
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66 #include "console-tty.h"
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67 #endif
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68
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0
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69 /* Note: We have to be careful throughout this code to properly handle
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70 and differentiate between Bufbytes and Emchars.
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71
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72 Since strings are generally composed of Bufbytes, I've taken the tack
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73 that any contiguous set of Bufbytes is called a "string", while
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74 any contiguous set of Emchars is called an "array". */
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75
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76 /* Return value to indicate a failure by an add_*_rune routine to add
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77 a rune, but no propagation information needs to be returned. */
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78 #define ADD_FAILED (prop_block_dynarr *) 1
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79
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80 #define BEGIN_GLYPHS 0
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81 #define END_GLYPHS 1
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82 #define LEFT_GLYPHS 2
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83 #define RIGHT_GLYPHS 3
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84
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85 /* Set the vertical clip to 0 if we are currently updating the line
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86 start cache. Otherwise for buffers of line height 1 it may fail to
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87 be able to work properly because regenerate_window will not layout
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88 a single line. */
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89 #define VERTICAL_CLIP(w, display) \
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90 (updating_line_start_cache \
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91 ? 0 \
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92 : ((WINDOW_TTY_P (w) | (!display && scroll_on_clipped_lines)) \
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93 ? INT_MAX \
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94 : vertical_clip))
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95
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96 /* The following structures are completely private to redisplay.c so
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97 we put them here instead of in a header file, for modularity. */
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98
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99 /* NOTE: Bytinds not Bufpos's in this structure. */
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100
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101 typedef struct position_redisplay_data_type
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102 {
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103 /* This information is normally filled in by the create_*_block
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104 routines and is used by the add_*_rune routines. */
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105 Lisp_Object window;
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106 struct device *d;
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107 struct display_block *db;
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108 struct display_line *dl;
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109 Emchar ch; /* Character that is to be added. This is
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110 used to communicate this information to
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111 add_emchar_rune(). */
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112 Lisp_Object last_charset; /* The charset of the previous character.
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113 Used to optimize some lookups -- we
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114 only have to do some things when
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115 the charset changes. */
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94
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116 face_index last_findex; /* The face index of the previous character.
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117 Needed to ensure the validity of the
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118 last_charset optimization. */
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183
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119
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0
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120 int last_char_width; /* The width of the previous character. */
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121 int font_is_bogus; /* If true, it means we couldn't instantiate
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122 the font for this charset, so we substitute
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123 ~'s from the ASCII charset. */
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124 Bytind bi_bufpos;
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125 Bytind bi_endpos;
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126 int pixpos;
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127 int max_pixpos;
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128 int blank_width; /* Width of the blank that is to be added.
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129 This is used to communicate this information
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130 to add_blank_rune().
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131
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132 This is also used rather cheesily to
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133 communicate the width of the eol-cursor-size
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134 blank that exists at the end of the line.
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135 add_emchar_rune() is called cheesily with
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136 the non-printing char '\n', which is stuck
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137 in the output routines with its width being
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138 BLANK_WIDTH. */
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139 Bytind bi_cursor_bufpos;/* This stores the buffer position of the cursor. */
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140 unsigned int cursor_type :3;
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141 int cursor_x; /* rune block cursor is at */
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142 int start_col; /* Number of character columns (each column has
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143 a width of the default char width) that still
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144 need to be skipped. This is used for horizontal
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145 scrolling, where a certain number of columns
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146 (those off the left side of the screen) need
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147 to be skipped before anything is displayed. */
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148 Bytind bi_start_col_enabled;
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149
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217
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150 int hscroll_glyph_width_adjust; /* how much the width of the hscroll
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151 glyph differs from space_width (w).
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152 0 if no hscroll glyph was used,
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153 i.e. the window is not scrolled
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154 horizontally. Used in tab
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155 calculations. */
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156
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0
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157 /* Information about the face the text should be displayed in and
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158 any begin-glyphs and end-glyphs. */
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159 struct extent_fragment *ef;
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160 face_index findex;
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161
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162 /* The height of a pixmap may either be predetermined if the user
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2
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163 has set a baseline value, or it may be dependent on whatever the
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164 line ascent and descent values end up being, based just on font
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165 information. In the first case we can immediately update the
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166 values, thus their inclusion here. In the last case we cannot
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167 determine the actual contribution to the line height until we
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168 have finished laying out all text on the line. Thus we propagate
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169 the max height of such pixmaps and do a final calculation after
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170 all text has been added to the line. */
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171 int new_ascent;
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172 int new_descent;
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173 int max_pixmap_height;
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174
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175 Lisp_Object result_str; /* String where we put the result of
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176 generating a formatted string in the modeline. */
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177 int is_modeline; /* Non-zero if we're generating the modeline. */
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178 Charcount modeline_charpos; /* Number of chars used in result_str so far;
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179 corresponds to bytepos. */
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180 Bytecount bytepos; /* Number of bytes used in result_str so far.
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181 We don't actually copy the bytes into result_str
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182 until the end because we don't know how big the
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183 string is going to be until then. */
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184 } pos_data;
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185
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186 enum prop_type
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187 {
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188 PROP_STRING,
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189 PROP_CHAR,
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190 PROP_MINIBUF_PROMPT,
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191 PROP_BLANK
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192 };
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193
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194 /* Data that should be propagated to the next line. Either a single
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195 Emchar or a string of Bufbyte's.
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196
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197 The actual data that is propagated ends up as a Dynarr of these
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198 blocks.
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199
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200 #### It's unclean that both Emchars and Bufbytes are here.
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201 */
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202
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185
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203 typedef struct prop_block prop_block;
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0
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204 struct prop_block
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205 {
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206 enum prop_type type;
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183
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207
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0
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208 union data
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209 {
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210 struct
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211 {
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212 Bufbyte *str;
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213 Bytecount len; /* length of the string. */
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214 } p_string;
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183
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215
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0
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216 struct
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217 {
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218 Emchar ch;
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219 Bytind bi_cursor_bufpos; /* NOTE: is in Bytinds */
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220 unsigned int cursor_type :3;
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221 } p_char;
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183
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222
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0
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223 struct
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224 {
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225 int width;
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226 face_index findex;
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227 } p_blank;
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228 } data;
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229 };
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230
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185
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231 typedef struct
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0
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232 {
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185
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233 Dynarr_declare (prop_block);
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0
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234 } prop_block_dynarr;
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235
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236
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237 /*
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238 * Prototypes for all functions defined in redisplay.c.
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239 */
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240 struct display_block *get_display_block_from_line (struct display_line *dl,
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241 enum display_type type);
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242 layout_bounds calculate_display_line_boundaries (struct window *w,
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243 int modeline);
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244 static Bufpos generate_display_line (struct window *w, struct display_line *dl,
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245 int bounds, Bufpos start_pos,
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246 int start_col, prop_block_dynarr **prop,
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247 int type);
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248 static void generate_modeline (struct window *w, struct display_line *dl,
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249 int type);
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250 static int ensure_modeline_generated (struct window *w, int type);
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251 static void generate_formatted_string_db (Lisp_Object format_str,
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252 Lisp_Object result_str,
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253 struct window *w,
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254 struct display_line *dl,
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255 struct display_block *db,
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256 face_index findex, int min_pixpos,
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257 int max_pixpos, int type);
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258 static Charcount generate_fstring_runes (struct window *w, pos_data *data,
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259 Charcount pos, Charcount min_pos,
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260 Charcount max_pos, Lisp_Object elt,
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261 int depth, int max_pixsize,
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262 face_index findex, int type);
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263 static prop_block_dynarr *add_emchar_rune (pos_data *data);
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264 static prop_block_dynarr *add_bufbyte_string_runes (pos_data *data,
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265 Bufbyte *c_string,
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266 Bytecount c_length,
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267 int no_prop);
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268 static prop_block_dynarr *add_blank_rune (pos_data *data, struct window *w,
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269 int char_tab_width);
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270 static prop_block_dynarr *add_octal_runes (pos_data *data);
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271 static prop_block_dynarr *add_control_char_runes (pos_data *data,
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272 struct buffer *b);
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273 static prop_block_dynarr *add_disp_table_entry_runes (pos_data *data,
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274 Lisp_Object entry);
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275 static prop_block_dynarr *add_propagation_runes (prop_block_dynarr **prop,
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276 pos_data *data);
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277 static prop_block_dynarr *add_glyph_rune (pos_data *data,
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278 struct glyph_block *gb,
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279 int pos_type, int allow_cursor,
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280 struct glyph_cachel *cachel);
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281 static prop_block_dynarr *add_glyph_runes (pos_data *data,
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282 int pos_type);
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283 /* NOTE: Bytinds not Bufpos's here. */
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284 static Bytind create_text_block (struct window *w, struct display_line *dl,
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285 Bytind bi_start_pos, int start_col,
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286 prop_block_dynarr **prop, int type);
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287 static int create_overlay_glyph_block (struct window *w,
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288 struct display_line *dl);
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289 static void create_left_glyph_block (struct window *w,
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290 struct display_line *dl,
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291 int overlay_width);
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292 static void create_right_glyph_block (struct window *w,
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293 struct display_line *dl);
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294 static void regenerate_window (struct window *w, Bufpos start_pos,
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295 Bufpos point, int type);
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185
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296 static Bufpos regenerate_window_point_center (struct window *w, Bufpos point,
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297 int type);
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0
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298 int window_half_pixpos (struct window *w);
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299 int line_at_center (struct window *w, int type, Bufpos start, Bufpos point);
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300 Bufpos point_at_center (struct window *w, int type, Bufpos start,
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301 Bufpos point);
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302 static void redisplay_window (Lisp_Object window, int skip_selected);
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303 static void redisplay_windows (Lisp_Object window, int skip_selected);
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304 static int redisplay_frame (struct frame *f, int preemption_check);
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305 void redisplay (void);
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306 static void decode_mode_spec (struct window *w, Emchar spec, int type);
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307 static void free_display_line (struct display_line *dl);
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308 void free_display_structs (struct window_mirror *mir);
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309 static int point_visible (struct window *w, Bufpos point, int type);
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310 static void update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
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311 Bufpos point, int no_regen);
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312 static Bufpos line_start_cache_start (struct window *w);
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313 static Bufpos line_start_cache_end (struct window *w);
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314
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315 /* This used to be 10 but 30 seems to give much better performance. */
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316 #define INIT_MAX_PREEMPTS 30
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317 static int max_preempts;
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318
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319 #define REDISPLAY_PREEMPTION_CHECK \
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320 do { \
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321 preempted = 0; \
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322 if (!disable_preemption && \
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323 ((preemption_count < max_preempts) || !NILP (Vexecuting_macro))) \
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324 if (!INTERACTIVE || detect_input_pending ()) { \
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325 preempted = 1; \
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326 } \
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327 } while (0)
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328
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329 /*
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330 * Redisplay global variables.
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331 */
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332
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333 /* We need a third set of display structures for the cursor motion
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334 routines. We used to just give each window a third set. However,
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335 we always fully regenerate the structures when needed so there
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336 isn't any reason we need more than a single set. */
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337 display_line_dynarr *cmotion_display_lines;
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338
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339 /* Used by generate_formatted_string. Global because they get used so
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340 much that the dynamic allocation time adds up. */
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185
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341 Emchar_dynarr *formatted_string_emchar_dynarr;
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0
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342 struct display_line formatted_string_display_line;
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343 /* We store the extents that we need to generate in a Dynarr and then
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344 frob them all on at the end of generating the string. We do it
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345 this way rather than adding them as we generate the string because
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346 we don't store the text into the resulting string until we're done
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347 (to avoid having to resize the string multiple times), and we don't
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348 want to go around adding extents to a string when the extents might
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349 stretch off the end of the string. */
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185
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350 EXTENT_dynarr *formatted_string_extent_dynarr;
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351 Bytecount_dynarr *formatted_string_extent_start_dynarr;
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352 Bytecount_dynarr *formatted_string_extent_end_dynarr;
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0
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353
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354
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355 /* #### probably temporary */
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356 int cache_adjustment;
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357
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358 /* This holds a string representing the text corresponding to a single
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359 modeline % spec. */
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185
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360 static Bufbyte_dynarr *mode_spec_bufbyte_string;
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0
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361
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362 int in_display; /* 1 if in redisplay. */
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363
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364 int disable_preemption; /* Used for debugging redisplay and for
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365 force-redisplay. */
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366
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367 /* We only allow max_preempts preemptions before we force a redisplay. */
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368 static int preemption_count;
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369
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370 /* Minimum pixel height of clipped bottom display line. */
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371 int vertical_clip;
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372
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373 /* Minimum visible pixel width of clipped glyphs at right margin. */
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374 int horizontal_clip;
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375
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376 /* Set if currently inside update_line_start_cache. */
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377 int updating_line_start_cache;
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378
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379 /* Nonzero means reading single-character input with prompt
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380 so put cursor on minibuffer after the prompt. */
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381 int cursor_in_echo_area;
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382 Lisp_Object Qcursor_in_echo_area;
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383
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384 /* Nonzero means truncate lines in all windows less wide than the frame */
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385 int truncate_partial_width_windows;
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386
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|
|
387 /* non-nil if a buffer has changed since the last time redisplay completed */
|
|
|
388 int buffers_changed;
|
|
|
389 int buffers_changed_set;
|
|
|
390
|
|
|
391 /* non-nil if hscroll has changed somewhere or a buffer has been
|
|
|
392 narrowed or widened */
|
|
|
393 int clip_changed;
|
|
|
394 int clip_changed_set;
|
|
|
395
|
|
|
396 /* non-nil if any extent has changed since the last time redisplay completed */
|
|
|
397 int extents_changed;
|
|
|
398 int extents_changed_set;
|
|
|
399
|
|
|
400 /* non-nil if any face has changed since the last time redisplay completed */
|
|
|
401 int faces_changed;
|
|
|
402
|
|
|
403 /* Nonzero means some frames have been marked as garbaged */
|
|
|
404 int frame_changed;
|
|
|
405
|
|
183
|
406 /* This variable is 1 if the icon has to be updated.
|
|
0
|
407 It is set to 1 when `frame-icon-glyph' changes. */
|
|
|
408 int icon_changed;
|
|
|
409 int icon_changed_set;
|
|
|
410
|
|
183
|
411 /* This variable is 1 if the menubar widget has to be updated.
|
|
0
|
412 It is set to 1 by set-menubar-dirty-flag and cleared when the widget
|
|
|
413 has been indapted. */
|
|
|
414 /* indapted???? */
|
|
|
415 int menubar_changed;
|
|
|
416 int menubar_changed_set;
|
|
|
417
|
|
|
418 /* true iff we should redraw the modelines on the next redisplay */
|
|
|
419 int modeline_changed;
|
|
|
420 int modeline_changed_set;
|
|
|
421
|
|
|
422 /* non-nil if point has changed in some buffer since the last time
|
|
|
423 redisplay completed */
|
|
|
424 int point_changed;
|
|
|
425 int point_changed_set;
|
|
|
426
|
|
|
427 /* non-nil if some frame has changed its size */
|
|
|
428 int size_changed;
|
|
|
429
|
|
|
430 /* non-nil if some device has signaled that it wants to change size */
|
|
|
431 int asynch_device_change_pending;
|
|
|
432
|
|
|
433 /* non-nil if any toolbar has changed */
|
|
|
434 int toolbar_changed;
|
|
|
435 int toolbar_changed_set;
|
|
|
436
|
|
|
437 /* non-nil if any window has changed since the last time redisplay completed */
|
|
|
438 int windows_changed;
|
|
|
439
|
|
2
|
440 /* non-nil if any frame's window structure has changed since the last
|
|
0
|
441 time redisplay completed */
|
|
|
442 int windows_structure_changed;
|
|
|
443
|
|
|
444 /* If non-nil, use vertical bar cursor. */
|
|
|
445 Lisp_Object Vbar_cursor;
|
|
|
446 Lisp_Object Qbar_cursor;
|
|
|
447
|
|
|
448
|
|
|
449 int visible_bell; /* If true and the terminal will support it
|
|
|
450 then the frame will flash instead of
|
|
|
451 beeping when an error occurs */
|
|
|
452
|
|
|
453 /* Nonzero means no need to redraw the entire frame on resuming
|
|
|
454 a suspended Emacs. This is useful on terminals with multiple pages,
|
|
|
455 where one page is used for Emacs and another for all else. */
|
|
|
456 int no_redraw_on_reenter;
|
|
|
457
|
|
|
458 Lisp_Object Vwindow_system; /* nil or a symbol naming the window system
|
|
|
459 under which emacs is running
|
|
|
460 ('x is the only current possibility) */
|
|
|
461 Lisp_Object Vinitial_window_system;
|
|
|
462
|
|
|
463 Lisp_Object Vglobal_mode_string;
|
|
|
464
|
|
195
|
465 /* The number of lines scroll a window by when point leaves the window; if
|
|
0
|
466 it is <=0 then point is centered in the window */
|
|
|
467 int scroll_step;
|
|
|
468
|
|
195
|
469 /* Scroll up to this many lines, to bring point back on screen. */
|
|
|
470 int scroll_conservatively;
|
|
|
471
|
|
0
|
472 /* Marker for where to display an arrow on top of the buffer text. */
|
|
|
473 Lisp_Object Voverlay_arrow_position;
|
|
|
474 /* String to display for the arrow. */
|
|
|
475 Lisp_Object Voverlay_arrow_string;
|
|
|
476
|
|
|
477 Lisp_Object Vwindow_size_change_functions;
|
|
|
478 Lisp_Object Qwindow_scroll_functions, Vwindow_scroll_functions;
|
|
|
479 Lisp_Object Qredisplay_end_trigger_functions, Vredisplay_end_trigger_functions;
|
|
|
480
|
|
|
481 #define INHIBIT_REDISPLAY_HOOKS /* #### Until we've thought about
|
|
|
482 this more. */
|
|
|
483 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
484 /* #### Chuck says: I think this needs more thought.
|
|
|
485 Think about this for 19.14. */
|
|
|
486 Lisp_Object Vpre_redisplay_hook, Vpost_redisplay_hook;
|
|
|
487 Lisp_Object Qpre_redisplay_hook, Qpost_redisplay_hook;
|
|
183
|
488 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
489
|
|
|
490 int last_display_warning_tick, display_warning_tick;
|
|
|
491 Lisp_Object Qdisplay_warning_buffer;
|
|
|
492 int inhibit_warning_display;
|
|
|
493
|
|
|
494 Lisp_Object Vleft_margin_width, Vright_margin_width;
|
|
|
495 Lisp_Object Vminimum_line_ascent, Vminimum_line_descent;
|
|
|
496 Lisp_Object Vuse_left_overflow, Vuse_right_overflow;
|
|
|
497 Lisp_Object Vtext_cursor_visible_p;
|
|
|
498
|
|
72
|
499 int column_number_start_at_one;
|
|
0
|
500
|
|
|
501 /***************************************************************************/
|
|
|
502 /* */
|
|
|
503 /* low-level interfaces onto device routines */
|
|
|
504 /* */
|
|
|
505 /***************************************************************************/
|
|
|
506
|
|
|
507 static int
|
|
|
508 redisplay_text_width_emchar_string (struct window *w, int findex,
|
|
|
509 Emchar *str, Charcount len)
|
|
|
510 {
|
|
|
511 unsigned char charsets[NUM_LEADING_BYTES];
|
|
|
512 Lisp_Object window = Qnil;
|
|
|
513
|
|
|
514 find_charsets_in_emchar_string (charsets, str, len);
|
|
|
515 XSETWINDOW (window, w);
|
|
|
516 ensure_face_cachel_complete (WINDOW_FACE_CACHEL (w, findex), window,
|
|
|
517 charsets);
|
|
|
518 return DEVMETH (XDEVICE (FRAME_DEVICE (XFRAME (WINDOW_FRAME (w)))),
|
|
|
519 text_width, (WINDOW_FACE_CACHEL (w, findex),
|
|
|
520 str, len));
|
|
|
521 }
|
|
|
522
|
|
185
|
523 static Emchar_dynarr *rtw_emchar_dynarr;
|
|
0
|
524
|
|
|
525 int
|
|
|
526 redisplay_text_width_string (struct window *w, int findex,
|
|
|
527 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
528 Bytecount offset, Bytecount len)
|
|
|
529 {
|
|
|
530 if (!rtw_emchar_dynarr)
|
|
|
531 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
532 Dynarr_reset (rtw_emchar_dynarr);
|
|
183
|
533
|
|
0
|
534 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
535 if (STRINGP (reloc))
|
|
16
|
536 nonreloc = XSTRING_DATA (reloc);
|
|
0
|
537 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
538 return redisplay_text_width_emchar_string
|
|
|
539 (w, findex, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
|
540 Dynarr_length (rtw_emchar_dynarr));
|
|
|
541 }
|
|
|
542
|
|
|
543 int
|
|
|
544 redisplay_frame_text_width_string (struct frame *f, Lisp_Object face,
|
|
|
545 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
546 Bytecount offset, Bytecount len)
|
|
|
547 {
|
|
|
548 unsigned char charsets[NUM_LEADING_BYTES];
|
|
|
549 Lisp_Object frame = Qnil;
|
|
|
550 struct face_cachel cachel;
|
|
|
551
|
|
|
552 if (!rtw_emchar_dynarr)
|
|
|
553 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
554 Dynarr_reset (rtw_emchar_dynarr);
|
|
|
555
|
|
|
556 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
557 if (STRINGP (reloc))
|
|
16
|
558 nonreloc = XSTRING_DATA (reloc);
|
|
0
|
559 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
560 find_charsets_in_bufbyte_string (charsets, nonreloc, len);
|
|
|
561 reset_face_cachel (&cachel);
|
|
|
562 cachel.face = face;
|
|
|
563 XSETFRAME (frame, f);
|
|
|
564 ensure_face_cachel_complete (&cachel, frame, charsets);
|
|
|
565 return DEVMETH (XDEVICE (FRAME_DEVICE (f)),
|
|
|
566 text_width, (&cachel, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
|
567 Dynarr_length (rtw_emchar_dynarr)));
|
|
|
568 }
|
|
|
569
|
|
|
570 /* Return the display block from DL of the given TYPE. A display line
|
|
|
571 can have only one display block of each possible type. If DL does
|
|
|
572 not have a block of type TYPE, one will be created and added to DL. */
|
|
|
573
|
|
|
574 struct display_block *
|
|
|
575 get_display_block_from_line (struct display_line *dl, enum display_type type)
|
|
|
576 {
|
|
|
577 int elt;
|
|
|
578 struct display_block db;
|
|
|
579
|
|
|
580 /* Check if this display line already has a block of the desired type and
|
|
|
581 if so, return it. */
|
|
|
582 if (dl->display_blocks)
|
|
|
583 {
|
|
|
584 for (elt = 0; elt < Dynarr_length (dl->display_blocks); elt++)
|
|
|
585 {
|
|
|
586 if (Dynarr_at (dl->display_blocks, elt).type == type)
|
|
173
|
587 return Dynarr_atp (dl->display_blocks, elt);
|
|
0
|
588 }
|
|
|
589
|
|
|
590 /* There isn't an active block of the desired type, but there
|
|
|
591 might still be allocated blocks we need to reuse. */
|
|
|
592 if (elt < Dynarr_largest (dl->display_blocks))
|
|
|
593 {
|
|
|
594 struct display_block *dbp = Dynarr_atp (dl->display_blocks, elt);
|
|
|
595
|
|
|
596 /* 'add' the block to the list */
|
|
|
597 Dynarr_increment (dl->display_blocks);
|
|
|
598
|
|
|
599 /* initialize and return */
|
|
|
600 dbp->type = type;
|
|
|
601 return dbp;
|
|
|
602 }
|
|
|
603 }
|
|
|
604 else
|
|
|
605 {
|
|
|
606 /* This line doesn't have any display blocks, so initialize the display
|
|
|
607 bock array. */
|
|
185
|
608 dl->display_blocks = Dynarr_new (display_block);
|
|
0
|
609 }
|
|
|
610
|
|
|
611 /* The line doesn't have a block of the desired type so go ahead and create
|
|
|
612 one and add it to the line. */
|
|
|
613 memset (&db, 0, sizeof (struct display_block));
|
|
|
614 db.type = type;
|
|
185
|
615 db.runes = Dynarr_new (rune);
|
|
0
|
616 Dynarr_add (dl->display_blocks, db);
|
|
|
617
|
|
|
618 /* Return the newly added display block. */
|
|
|
619 elt = Dynarr_length (dl->display_blocks) - 1;
|
|
|
620
|
|
|
621 return Dynarr_atp (dl->display_blocks, elt);
|
|
|
622 }
|
|
|
623
|
|
|
624 static int
|
|
|
625 tab_char_width (struct window *w)
|
|
|
626 {
|
|
|
627 struct buffer *b = XBUFFER (w->buffer);
|
|
|
628 int char_tab_width = XINT (b->tab_width);
|
|
|
629
|
|
|
630 if (char_tab_width <= 0 || char_tab_width > 1000) char_tab_width = 8;
|
|
|
631
|
|
|
632 return char_tab_width;
|
|
|
633 }
|
|
|
634
|
|
|
635 static int
|
|
|
636 space_width (struct window *w)
|
|
|
637 {
|
|
|
638 /* While tabs are traditional composed of spaces, for variable-width
|
|
|
639 fonts the space character tends to give too narrow a value. So
|
|
|
640 we use 'n' instead. Except that we don't. We use the default
|
|
|
641 character width for the default face. If this is actually
|
|
|
642 defined by the font then it is probably the best thing to
|
|
|
643 actually use. If it isn't, we have assumed it is 'n' and have
|
|
|
644 already calculated its width. Thus we can avoid a call to
|
|
|
645 XTextWidth on X frames by just querying the default width. */
|
|
|
646 return XFONT_INSTANCE
|
|
|
647 (WINDOW_FACE_CACHEL_FONT (w, DEFAULT_INDEX, Vcharset_ascii))->width;
|
|
|
648 }
|
|
|
649
|
|
|
650 static int
|
|
|
651 tab_pix_width (struct window *w)
|
|
|
652 {
|
|
173
|
653 return space_width (w) * tab_char_width (w);
|
|
0
|
654 }
|
|
|
655
|
|
|
656 /* Given a pixel position in a window, return the pixel location of
|
|
|
657 the next tabstop. Tabs are calculated from the left window edge in
|
|
|
658 terms of spaces displayed in the default face. Formerly the space
|
|
|
659 width was determined using the currently active face. That method
|
|
|
660 leads to tabstops which do not line up. */
|
|
|
661
|
|
|
662 static int
|
|
|
663 next_tab_position (struct window *w, int start_pixpos, int left_pixpos)
|
|
|
664 {
|
|
|
665 int n_pos = left_pixpos;
|
|
|
666 int pix_tab_width = tab_pix_width (w);
|
|
|
667
|
|
|
668 /* Adjust n_pos for any hscrolling which has happened. */
|
|
|
669 if (w->hscroll > 1)
|
|
|
670 n_pos -= space_width (w) * (w->hscroll - 1);
|
|
|
671
|
|
|
672 while (n_pos <= start_pixpos)
|
|
|
673 n_pos += pix_tab_width;
|
|
|
674
|
|
|
675 return n_pos;
|
|
|
676 }
|
|
|
677
|
|
|
678 /* For the given window, calculate the outside and margin boundaries for a
|
|
|
679 display line. The whitespace boundaries must be calculated by the text
|
|
|
680 layout routines. */
|
|
|
681
|
|
|
682 layout_bounds
|
|
|
683 calculate_display_line_boundaries (struct window *w, int modeline)
|
|
|
684 {
|
|
|
685 layout_bounds bounds;
|
|
|
686
|
|
|
687 /* Set the outermost boundaries which are the boundaries of the
|
|
|
688 window itself minus the gutters (and minus the scrollbars if this
|
|
|
689 is for the modeline). */
|
|
|
690 if (!modeline)
|
|
|
691 {
|
|
|
692 bounds.left_out = WINDOW_TEXT_LEFT (w);
|
|
|
693 bounds.right_out = WINDOW_TEXT_RIGHT (w);
|
|
|
694 }
|
|
|
695 else
|
|
|
696 {
|
|
|
697 bounds.left_out = WINDOW_MODELINE_LEFT (w);
|
|
|
698 bounds.right_out = WINDOW_MODELINE_RIGHT (w);
|
|
|
699 }
|
|
|
700
|
|
|
701 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
702 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
703 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
704
|
|
|
705 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
706 depend on the contents of the line being displayed. */
|
|
|
707 bounds.left_white = bounds.left_in;
|
|
|
708 bounds.right_white = bounds.right_in;
|
|
|
709
|
|
|
710 return bounds;
|
|
|
711 }
|
|
|
712
|
|
|
713 /* Given a display line and a starting position, ensure that the
|
|
|
714 contents of the display line accurately represent the visual
|
|
|
715 representation of the buffer contents starting from the given
|
|
|
716 position when displayed in the given window. The display line ends
|
|
|
717 when the contents of the line reach the right boundary of the given
|
|
|
718 window. */
|
|
|
719
|
|
|
720 static Bufpos
|
|
|
721 generate_display_line (struct window *w, struct display_line *dl, int bounds,
|
|
|
722 Bufpos start_pos, int start_col,
|
|
|
723 prop_block_dynarr **prop, int type)
|
|
|
724 {
|
|
|
725 Bufpos ret_bufpos;
|
|
|
726 int overlay_width;
|
|
|
727 struct buffer *b = XBUFFER (WINDOW_BUFFER (w));
|
|
|
728
|
|
|
729 /* If our caller hasn't already set the boundaries, then do so now. */
|
|
|
730 if (!bounds)
|
|
|
731 dl->bounds = calculate_display_line_boundaries (w, 0);
|
|
|
732
|
|
|
733 /* Reset what this line is using. */
|
|
|
734 if (dl->display_blocks)
|
|
|
735 Dynarr_reset (dl->display_blocks);
|
|
|
736 if (dl->left_glyphs)
|
|
|
737 {
|
|
|
738 Dynarr_free (dl->left_glyphs);
|
|
|
739 dl->left_glyphs = 0;
|
|
|
740 }
|
|
|
741 if (dl->right_glyphs)
|
|
|
742 {
|
|
|
743 Dynarr_free (dl->right_glyphs);
|
|
|
744 dl->right_glyphs = 0;
|
|
|
745 }
|
|
|
746
|
|
|
747 /* We aren't generating a modeline at the moment. */
|
|
|
748 dl->modeline = 0;
|
|
|
749
|
|
|
750 /* Create a display block for the text region of the line. */
|
|
|
751 {
|
|
|
752 /* #### urk urk urk!!! Chuck fix this shit! */
|
|
|
753 Bytind hacked_up_bytind =
|
|
|
754 create_text_block (w, dl, bufpos_to_bytind (b, start_pos),
|
|
|
755 start_col, prop, type);
|
|
|
756 if (hacked_up_bytind > BI_BUF_ZV (b))
|
|
|
757 ret_bufpos = BUF_ZV (b) + 1;
|
|
|
758 else
|
|
|
759 ret_bufpos = bytind_to_bufpos (b, hacked_up_bytind);
|
|
|
760 }
|
|
|
761 dl->bufpos = start_pos;
|
|
|
762 if (dl->end_bufpos < dl->bufpos)
|
|
|
763 dl->end_bufpos = dl->bufpos;
|
|
|
764
|
|
|
765 if (MARKERP (Voverlay_arrow_position)
|
|
|
766 && EQ (w->buffer, Fmarker_buffer (Voverlay_arrow_position))
|
|
|
767 && start_pos == marker_position (Voverlay_arrow_position)
|
|
|
768 && (STRINGP (Voverlay_arrow_string)
|
|
|
769 || GLYPHP (Voverlay_arrow_string)))
|
|
|
770 {
|
|
|
771 overlay_width = create_overlay_glyph_block (w, dl);
|
|
|
772 }
|
|
|
773 else
|
|
|
774 overlay_width = 0;
|
|
|
775
|
|
|
776 /* If there are left glyphs associated with any character in the
|
|
|
777 text block, then create a display block to handle them. */
|
|
|
778 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
779 create_left_glyph_block (w, dl, overlay_width);
|
|
|
780
|
|
|
781 /* If there are right glyphs associated with any character in the
|
|
|
782 text block, then create a display block to handle them. */
|
|
|
783 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
784 create_right_glyph_block (w, dl);
|
|
|
785
|
|
|
786 /* In the future additional types of display blocks may be generated
|
|
|
787 here. */
|
|
|
788
|
|
|
789 w->last_redisplay_pos = ret_bufpos;
|
|
|
790
|
|
|
791 return ret_bufpos;
|
|
|
792 }
|
|
|
793
|
|
|
794 /* Adds an hscroll glyph to a display block. If this is called, then
|
|
|
795 the block had better be empty.
|
|
|
796
|
|
|
797 Yes, there are multiple places where this function is called but
|
|
|
798 that is the way it has to be. Each calling function has to deal
|
|
|
799 with bi_start_col_enabled a little differently depending on the
|
|
|
800 object being worked with. */
|
|
|
801
|
|
|
802 static prop_block_dynarr *
|
|
|
803 add_hscroll_rune (pos_data *data)
|
|
|
804 {
|
|
|
805 struct glyph_block gb;
|
|
|
806 prop_block_dynarr *retval;
|
|
|
807 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
808 unsigned int old_cursor_type = data->cursor_type;
|
|
|
809 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
810
|
|
|
811 if (data->cursor_type == CURSOR_ON
|
|
|
812 && data->bi_cursor_bufpos >= data->bi_start_col_enabled
|
|
|
813 && data->bi_cursor_bufpos <= data->bi_bufpos)
|
|
|
814 {
|
|
|
815 data->bi_cursor_bufpos = data->bi_start_col_enabled;
|
|
|
816 }
|
|
|
817 else
|
|
|
818 {
|
|
|
819 data->cursor_type = NO_CURSOR;
|
|
|
820 }
|
|
|
821
|
|
|
822 data->bi_endpos = data->bi_bufpos;
|
|
|
823 data->bi_bufpos = data->bi_start_col_enabled;
|
|
|
824
|
|
|
825 gb.extent = Qnil;
|
|
|
826 gb.glyph = Vhscroll_glyph;
|
|
217
|
827 {
|
|
|
828 int oldpixpos = data->pixpos;
|
|
|
829 retval = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
830 GLYPH_CACHEL (XWINDOW (data->window),
|
|
|
831 HSCROLL_GLYPH_INDEX));
|
|
|
832 data->hscroll_glyph_width_adjust =
|
|
|
833 data->pixpos - oldpixpos - space_width (XWINDOW (data->window));
|
|
|
834 }
|
|
0
|
835 data->bi_endpos = 0;
|
|
|
836 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
837 data->cursor_type = old_cursor_type;
|
|
|
838 data->bi_bufpos = bi_old_bufpos;
|
|
|
839
|
|
|
840 data->bi_start_col_enabled = 0;
|
|
|
841 return retval;
|
|
|
842 }
|
|
|
843
|
|
|
844 /* Adds a character rune to a display block. If there is not enough
|
|
|
845 room to fit the rune on the display block (as determined by the
|
|
|
846 MAX_PIXPOS) then it adds nothing and returns ADD_FAILED. */
|
|
|
847
|
|
|
848 static prop_block_dynarr *
|
|
|
849 add_emchar_rune (pos_data *data)
|
|
|
850 {
|
|
|
851 struct rune rb, *crb;
|
|
|
852 int width, local;
|
|
|
853
|
|
|
854 if (data->start_col)
|
|
|
855 {
|
|
|
856 data->start_col--;
|
|
|
857
|
|
|
858 if (data->start_col)
|
|
|
859 return NULL;
|
|
|
860 }
|
|
|
861
|
|
|
862 if (data->bi_start_col_enabled)
|
|
|
863 {
|
|
|
864 return add_hscroll_rune (data);
|
|
|
865 }
|
|
|
866
|
|
|
867 if (data->ch == '\n')
|
|
|
868 {
|
|
|
869 data->font_is_bogus = 0;
|
|
|
870 /* Cheesy end-of-line pseudo-character. */
|
|
|
871 width = data->blank_width;
|
|
|
872 }
|
|
|
873 else
|
|
|
874 {
|
|
|
875 Lisp_Object charset = CHAR_CHARSET (data->ch);
|
|
94
|
876 if (!EQ (charset, data->last_charset) ||
|
|
|
877 data->findex != data->last_findex)
|
|
0
|
878 {
|
|
|
879 /* OK, we need to do things the hard way. */
|
|
|
880 struct window *w = XWINDOW (data->window);
|
|
183
|
881 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, data->findex);
|
|
0
|
882 Lisp_Object font_instance =
|
|
|
883 ensure_face_cachel_contains_charset (cachel, data->window,
|
|
|
884 charset);
|
|
|
885 struct Lisp_Font_Instance *fi;
|
|
|
886
|
|
|
887 if (EQ (font_instance, Vthe_null_font_instance))
|
|
|
888 {
|
|
|
889 font_instance = FACE_CACHEL_FONT (cachel, Vcharset_ascii);
|
|
|
890 data->font_is_bogus = 1;
|
|
|
891 }
|
|
|
892 else
|
|
|
893 data->font_is_bogus = 0;
|
|
|
894
|
|
|
895 fi = XFONT_INSTANCE (font_instance);
|
|
|
896 if (!fi->proportional_p)
|
|
|
897 /* sweetness and light. */
|
|
|
898 data->last_char_width = fi->width;
|
|
|
899 else
|
|
|
900 data->last_char_width = -1;
|
|
2
|
901 data->new_ascent = max (data->new_ascent, (int) fi->ascent);
|
|
0
|
902 data->new_descent = max (data->new_descent, (int) fi->descent);
|
|
94
|
903 data->last_charset = charset;
|
|
|
904 data->last_findex = data->findex;
|
|
0
|
905 }
|
|
|
906
|
|
|
907 width = data->last_char_width;
|
|
|
908 if (width < 0)
|
|
|
909 {
|
|
|
910 /* bummer. Proportional fonts. */
|
|
|
911 width = redisplay_text_width_emchar_string (XWINDOW (data->window),
|
|
|
912 data->findex,
|
|
|
913 &data->ch, 1);
|
|
|
914 }
|
|
|
915 }
|
|
|
916
|
|
|
917 if (data->max_pixpos != -1 && (data->pixpos + width > data->max_pixpos))
|
|
|
918 {
|
|
|
919 return ADD_FAILED;
|
|
|
920 }
|
|
|
921
|
|
|
922 if (Dynarr_length (data->db->runes) < Dynarr_largest (data->db->runes))
|
|
|
923 {
|
|
|
924 crb = Dynarr_atp (data->db->runes, Dynarr_length (data->db->runes));
|
|
|
925 local = 0;
|
|
|
926 }
|
|
|
927 else
|
|
|
928 {
|
|
|
929 crb = &rb;
|
|
|
930 local = 1;
|
|
|
931 }
|
|
|
932
|
|
|
933 crb->findex = data->findex;
|
|
|
934 crb->xpos = data->pixpos;
|
|
|
935 crb->width = width;
|
|
|
936 if (data->bi_bufpos)
|
|
243
|
937 crb->bufpos =
|
|
|
938 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
939 data->bi_bufpos);
|
|
0
|
940 else if (data->is_modeline)
|
|
|
941 crb->bufpos = data->modeline_charpos;
|
|
|
942 else
|
|
|
943 /* fuckme if this shouldn't be an abort. */
|
|
|
944 /* abort (); fuckme harder, this abort gets tripped quite often,
|
|
|
945 in propagation and whatnot. #### fixme */
|
|
|
946 crb->bufpos = 0;
|
|
|
947 crb->type = RUNE_CHAR;
|
|
|
948 crb->object.chr.ch = data->font_is_bogus ? '~' : data->ch;
|
|
|
949 crb->endpos = 0;
|
|
|
950
|
|
|
951 if (data->cursor_type == CURSOR_ON)
|
|
|
952 {
|
|
|
953 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
954 {
|
|
|
955 crb->cursor_type = CURSOR_ON;
|
|
|
956 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
957 }
|
|
|
958 else
|
|
|
959 crb->cursor_type = CURSOR_OFF;
|
|
|
960 }
|
|
|
961 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
962 {
|
|
|
963 crb->cursor_type = CURSOR_ON;
|
|
|
964 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
965 data->cursor_type = NO_CURSOR;
|
|
|
966 }
|
|
|
967 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
968 crb->cursor_type = IGNORE_CURSOR;
|
|
|
969 else
|
|
|
970 crb->cursor_type = CURSOR_OFF;
|
|
|
971
|
|
|
972 if (local)
|
|
|
973 Dynarr_add (data->db->runes, *crb);
|
|
|
974 else
|
|
|
975 Dynarr_increment (data->db->runes);
|
|
|
976
|
|
|
977 data->pixpos += width;
|
|
|
978
|
|
|
979 return NULL;
|
|
|
980 }
|
|
|
981
|
|
|
982 /* Given a string C_STRING of length C_LENGTH, call add_emchar_rune
|
|
|
983 for each character in the string. Propagate any left-over data
|
|
|
984 unless NO_PROP is non-zero. */
|
|
|
985
|
|
|
986 static prop_block_dynarr *
|
|
|
987 add_bufbyte_string_runes (pos_data *data, Bufbyte *c_string,
|
|
|
988 Bytecount c_length, int no_prop)
|
|
|
989 {
|
|
|
990 Bufbyte *pos, *end = c_string + c_length;
|
|
|
991 prop_block_dynarr *prop;
|
|
|
992
|
|
|
993 /* #### This function is too simplistic. It needs to do the same
|
|
|
994 sort of character interpretation (display-table lookup,
|
|
|
995 ctl-arrow checking), etc. that create_text_block() does.
|
|
|
996 The functionality to do this in that routine needs to be
|
|
|
997 modularized. */
|
|
183
|
998
|
|
0
|
999 for (pos = c_string; pos < end;)
|
|
|
1000 {
|
|
|
1001 data->ch = charptr_emchar (pos);
|
|
|
1002
|
|
|
1003 prop = add_emchar_rune (data);
|
|
|
1004
|
|
|
1005 if (prop)
|
|
|
1006 {
|
|
|
1007 if (no_prop)
|
|
|
1008 return ADD_FAILED;
|
|
|
1009 else
|
|
|
1010 {
|
|
|
1011 struct prop_block pb;
|
|
|
1012 Bytecount len = end - pos;
|
|
185
|
1013 prop = Dynarr_new (prop_block);
|
|
0
|
1014
|
|
|
1015 pb.type = PROP_STRING;
|
|
185
|
1016 pb.data.p_string.str = xnew_array (Bufbyte, len);
|
|
0
|
1017 strncpy ((char *) pb.data.p_string.str, (char *) pos, len);
|
|
|
1018 pb.data.p_string.len = len;
|
|
|
1019
|
|
|
1020 Dynarr_add (prop, pb);
|
|
|
1021 return prop;
|
|
|
1022 }
|
|
|
1023 }
|
|
|
1024 INC_CHARPTR (pos);
|
|
|
1025 assert (pos <= end);
|
|
|
1026 }
|
|
|
1027
|
|
|
1028 return NULL;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 /* Add a single rune of the specified width. The area covered by this
|
|
|
1032 rune will be displayed in the foreground color of the associated
|
|
|
1033 face. */
|
|
|
1034
|
|
|
1035 static prop_block_dynarr *
|
|
|
1036 add_blank_rune (pos_data *data, struct window *w, int char_tab_width)
|
|
|
1037 {
|
|
|
1038 struct rune rb;
|
|
|
1039
|
|
|
1040 /* If data->start_col is not 0 then this call to add_blank_rune must have
|
|
|
1041 been to add it as a tab. */
|
|
|
1042 if (data->start_col)
|
|
|
1043 {
|
|
|
1044 /* assert (w != NULL) */
|
|
|
1045 prop_block_dynarr *retval;
|
|
|
1046
|
|
|
1047 /* If we have still not fully scrolled horizontally, subtract
|
|
|
1048 the width of this tab and return. */
|
|
|
1049 if (char_tab_width < data->start_col)
|
|
|
1050 {
|
|
|
1051 data->start_col -= char_tab_width;
|
|
|
1052 return NULL;
|
|
|
1053 }
|
|
|
1054 else if (char_tab_width == data->start_col)
|
|
|
1055 data->blank_width = 0;
|
|
|
1056 else
|
|
|
1057 {
|
|
|
1058 int spcwid = space_width (w);
|
|
|
1059
|
|
|
1060 if (spcwid >= data->blank_width)
|
|
|
1061 data->blank_width = 0;
|
|
|
1062 else
|
|
|
1063 data->blank_width -= spcwid;
|
|
|
1064 }
|
|
183
|
1065
|
|
0
|
1066 data->start_col = 0;
|
|
|
1067 retval = add_hscroll_rune (data);
|
|
|
1068
|
|
|
1069 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1070 if (retval != NULL || !data->blank_width)
|
|
|
1071 return retval;
|
|
|
1072 }
|
|
|
1073
|
|
|
1074 /* Blank runes are always calculated to fit. */
|
|
|
1075 assert (data->pixpos + data->blank_width <= data->max_pixpos);
|
|
|
1076
|
|
|
1077 rb.findex = data->findex;
|
|
|
1078 rb.xpos = data->pixpos;
|
|
|
1079 rb.width = data->blank_width;
|
|
|
1080 if (data->bi_bufpos)
|
|
243
|
1081 rb.bufpos =
|
|
|
1082 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
1083 data->bi_bufpos);
|
|
0
|
1084 else
|
|
|
1085 /* #### and this is really correct too? */
|
|
|
1086 rb.bufpos = 0;
|
|
|
1087 rb.endpos = 0;
|
|
|
1088 rb.type = RUNE_BLANK;
|
|
|
1089
|
|
|
1090 if (data->cursor_type == CURSOR_ON)
|
|
|
1091 {
|
|
|
1092 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1093 {
|
|
|
1094 rb.cursor_type = CURSOR_ON;
|
|
|
1095 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1096 }
|
|
|
1097 else
|
|
|
1098 rb.cursor_type = CURSOR_OFF;
|
|
|
1099 }
|
|
|
1100 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1101 {
|
|
|
1102 rb.cursor_type = CURSOR_ON;
|
|
|
1103 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1104 data->cursor_type = NO_CURSOR;
|
|
|
1105 }
|
|
|
1106 else
|
|
|
1107 rb.cursor_type = CURSOR_OFF;
|
|
|
1108
|
|
|
1109 Dynarr_add (data->db->runes, rb);
|
|
|
1110 data->pixpos += data->blank_width;
|
|
|
1111
|
|
|
1112 return NULL;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 /* Add runes representing a character in octal. */
|
|
|
1116
|
|
|
1117 #define ADD_NEXT_OCTAL_RUNE_CHAR do \
|
|
|
1118 { \
|
|
|
1119 if (add_failed || (add_failed = add_emchar_rune (data))) \
|
|
|
1120 { \
|
|
|
1121 struct prop_block pb; \
|
|
|
1122 if (!prop) \
|
|
185
|
1123 prop = Dynarr_new (prop_block); \
|
|
0
|
1124 \
|
|
|
1125 pb.type = PROP_CHAR; \
|
|
|
1126 pb.data.p_char.ch = data->ch; \
|
|
|
1127 pb.data.p_char.cursor_type = data->cursor_type; \
|
|
|
1128 Dynarr_add (prop, pb); \
|
|
|
1129 } \
|
|
|
1130 } while (0)
|
|
|
1131
|
|
|
1132 static prop_block_dynarr *
|
|
|
1133 add_octal_runes (pos_data *data)
|
|
|
1134 {
|
|
|
1135 prop_block_dynarr *prop, *add_failed;
|
|
|
1136 Emchar orig_char = data->ch;
|
|
|
1137 unsigned int orig_cursor_type = data->cursor_type;
|
|
|
1138
|
|
|
1139 /* Initialize */
|
|
|
1140 prop = NULL;
|
|
|
1141 add_failed = NULL;
|
|
|
1142
|
|
|
1143 if (data->start_col)
|
|
|
1144 data->start_col--;
|
|
|
1145
|
|
|
1146 if (!data->start_col)
|
|
|
1147 {
|
|
|
1148 if (data->bi_start_col_enabled)
|
|
|
1149 {
|
|
|
1150 add_failed = add_hscroll_rune (data);
|
|
|
1151 }
|
|
|
1152 else
|
|
|
1153 {
|
|
|
1154 struct glyph_block gb;
|
|
|
1155 struct window *w = XWINDOW (data->window);
|
|
|
1156
|
|
|
1157 gb.extent = Qnil;
|
|
|
1158 gb.glyph = Voctal_escape_glyph;
|
|
|
1159 add_failed =
|
|
|
1160 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1161 GLYPH_CACHEL (w, OCT_ESC_GLYPH_INDEX));
|
|
|
1162 }
|
|
|
1163 }
|
|
|
1164
|
|
|
1165 /* We only propagate information if the glyph was partially
|
|
|
1166 added. */
|
|
|
1167 if (add_failed)
|
|
|
1168 return add_failed;
|
|
|
1169
|
|
|
1170 data->cursor_type = IGNORE_CURSOR;
|
|
|
1171
|
|
|
1172 if (data->ch >= 0x100)
|
|
|
1173 {
|
|
|
1174 /* If the character is an extended Mule character, it could have
|
|
|
1175 up to 19 bits. For the moment, we treat it as a seven-digit
|
|
|
1176 octal number. This is not that pretty, but whatever. */
|
|
|
1177 data->ch = (7 & (orig_char >> 18)) + '0';
|
|
|
1178 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1179
|
|
|
1180 data->ch = (7 & (orig_char >> 15)) + '0';
|
|
|
1181 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1182
|
|
|
1183 data->ch = (7 & (orig_char >> 12)) + '0';
|
|
|
1184 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1185
|
|
|
1186 data->ch = (7 & (orig_char >> 9)) + '0';
|
|
|
1187 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1188 }
|
|
|
1189
|
|
|
1190 data->ch = (7 & (orig_char >> 6)) + '0';
|
|
|
1191 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1192
|
|
|
1193 data->ch = (7 & (orig_char >> 3)) + '0';
|
|
|
1194 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1195
|
|
|
1196 data->ch = (7 & orig_char) + '0';
|
|
|
1197 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1198
|
|
|
1199 data->cursor_type = orig_cursor_type;
|
|
|
1200 return prop;
|
|
|
1201 }
|
|
|
1202
|
|
|
1203 #undef ADD_NEXT_OCTAL_RUNE_CHAR
|
|
|
1204
|
|
|
1205 /* Add runes representing a control character to a display block. */
|
|
|
1206
|
|
|
1207 static prop_block_dynarr *
|
|
|
1208 add_control_char_runes (pos_data *data, struct buffer *b)
|
|
|
1209 {
|
|
|
1210 if (!NILP (b->ctl_arrow))
|
|
|
1211 {
|
|
|
1212 prop_block_dynarr *prop;
|
|
|
1213 Emchar orig_char = data->ch;
|
|
|
1214 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1215
|
|
|
1216 /* Initialize */
|
|
|
1217 prop = NULL;
|
|
|
1218
|
|
|
1219 if (data->start_col)
|
|
|
1220 data->start_col--;
|
|
|
1221
|
|
|
1222 if (!data->start_col)
|
|
|
1223 {
|
|
|
1224 if (data->bi_start_col_enabled)
|
|
|
1225 {
|
|
|
1226 prop_block_dynarr *retval;
|
|
|
1227
|
|
|
1228 retval = add_hscroll_rune (data);
|
|
|
1229 if (retval)
|
|
|
1230 return retval;
|
|
|
1231 }
|
|
|
1232 else
|
|
|
1233 {
|
|
|
1234 struct glyph_block gb;
|
|
|
1235 struct window *w = XWINDOW (data->window);
|
|
|
1236
|
|
|
1237 gb.extent = Qnil;
|
|
|
1238 gb.glyph = Vcontrol_arrow_glyph;
|
|
|
1239
|
|
|
1240 /* We only propagate information if the glyph was partially
|
|
|
1241 added. */
|
|
|
1242 if (add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1243 GLYPH_CACHEL (w, CONTROL_GLYPH_INDEX)))
|
|
|
1244 return ADD_FAILED;
|
|
|
1245 }
|
|
|
1246 }
|
|
|
1247
|
|
|
1248 if (orig_char == 0177)
|
|
|
1249 data->ch = '?';
|
|
|
1250 else
|
|
|
1251 data->ch = orig_char ^ 0100;
|
|
|
1252 data->cursor_type = IGNORE_CURSOR;
|
|
|
1253
|
|
|
1254 if (add_emchar_rune (data))
|
|
|
1255 {
|
|
|
1256 struct prop_block pb;
|
|
|
1257 if (!prop)
|
|
185
|
1258 prop = Dynarr_new (prop_block);
|
|
0
|
1259
|
|
|
1260 pb.type = PROP_CHAR;
|
|
|
1261 pb.data.p_char.ch = data->ch;
|
|
|
1262 pb.data.p_char.cursor_type = data->cursor_type;
|
|
|
1263 Dynarr_add (prop, pb);
|
|
|
1264 }
|
|
|
1265
|
|
|
1266 data->cursor_type = old_cursor_type;
|
|
|
1267 return prop;
|
|
|
1268 }
|
|
|
1269 else
|
|
|
1270 {
|
|
|
1271 return add_octal_runes (data);
|
|
|
1272 }
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 /* Given a display table entry, call the appropriate functions to
|
|
|
1276 display each element of the entry. */
|
|
|
1277
|
|
|
1278 static prop_block_dynarr *
|
|
|
1279 add_disp_table_entry_runes (pos_data *data, Lisp_Object entry)
|
|
|
1280 {
|
|
|
1281 prop_block_dynarr *prop = NULL;
|
|
|
1282
|
|
|
1283 if (VECTORP (entry))
|
|
|
1284 {
|
|
|
1285 struct Lisp_Vector *de = XVECTOR (entry);
|
|
|
1286 long len = vector_length (de);
|
|
|
1287 int elt;
|
|
|
1288
|
|
|
1289 for (elt = 0; elt < len; elt++)
|
|
|
1290 {
|
|
|
1291 if (NILP (de->contents[elt]))
|
|
|
1292 continue;
|
|
|
1293 else if (STRINGP (de->contents[elt]))
|
|
|
1294 {
|
|
|
1295 prop =
|
|
|
1296 add_bufbyte_string_runes
|
|
|
1297 (data,
|
|
16
|
1298 XSTRING_DATA (de->contents[elt]),
|
|
|
1299 XSTRING_LENGTH (de->contents[elt]),
|
|
0
|
1300 0);
|
|
|
1301 }
|
|
|
1302 else if (GLYPHP (de->contents[elt]))
|
|
|
1303 {
|
|
|
1304 if (data->start_col)
|
|
|
1305 data->start_col--;
|
|
|
1306
|
|
|
1307 if (!data->start_col && data->bi_start_col_enabled)
|
|
|
1308 {
|
|
|
1309 prop = add_hscroll_rune (data);
|
|
|
1310 }
|
|
|
1311 else
|
|
|
1312 {
|
|
|
1313 struct glyph_block gb;
|
|
|
1314
|
|
|
1315 gb.glyph = de->contents[elt];
|
|
|
1316 gb.extent = Qnil;
|
|
|
1317 prop = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
1318 }
|
|
|
1319 }
|
|
|
1320 else if (CHAR_OR_CHAR_INTP (de->contents[elt]))
|
|
|
1321 {
|
|
|
1322 data->ch = XCHAR_OR_CHAR_INT (de->contents[elt]);
|
|
|
1323 prop = add_emchar_rune (data);
|
|
|
1324 }
|
|
|
1325 /* Else blow it off because someone added a bad entry and we
|
|
|
1326 don't have any safe way of signaling an error. */
|
|
|
1327
|
|
|
1328 /* #### Still need to add any remaining elements to the
|
|
|
1329 propagation information. */
|
|
|
1330 if (prop)
|
|
|
1331 return prop;
|
|
|
1332 }
|
|
|
1333 }
|
|
|
1334 else if (STRINGP (entry))
|
|
|
1335 {
|
|
|
1336 prop = add_bufbyte_string_runes (data,
|
|
16
|
1337 XSTRING_DATA (entry),
|
|
|
1338 XSTRING_LENGTH (entry),
|
|
0
|
1339 0);
|
|
|
1340 }
|
|
|
1341 else if (GLYPHP (entry))
|
|
|
1342 {
|
|
|
1343 if (data->start_col)
|
|
|
1344 data->start_col--;
|
|
|
1345
|
|
|
1346 if (!data->start_col && data->bi_start_col_enabled)
|
|
|
1347 {
|
|
|
1348 prop = add_hscroll_rune (data);
|
|
|
1349 }
|
|
|
1350 else
|
|
|
1351 {
|
|
|
1352 struct glyph_block gb;
|
|
|
1353
|
|
|
1354 gb.glyph = entry;
|
|
|
1355 gb.extent = Qnil;
|
|
|
1356 prop = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
1357 }
|
|
|
1358 }
|
|
|
1359 else if (CHAR_OR_CHAR_INTP (entry))
|
|
|
1360 {
|
|
|
1361 data->ch = XCHAR_OR_CHAR_INT (entry);
|
|
|
1362 prop = add_emchar_rune (data);
|
|
|
1363 }
|
|
|
1364
|
|
|
1365 /* Else blow it off because someone added a bad entry and we don't
|
|
|
1366 have any safe way of signaling an error. Hey, this comment
|
|
|
1367 sounds familiar. */
|
|
|
1368 return prop;
|
|
|
1369 }
|
|
|
1370
|
|
|
1371 /* Add runes which were propagated from the previous line. */
|
|
|
1372
|
|
|
1373 static prop_block_dynarr *
|
|
|
1374 add_propagation_runes (prop_block_dynarr **prop, pos_data *data)
|
|
|
1375 {
|
|
|
1376 /* #### Remember to handle start_col parameter of data when the rest of
|
|
|
1377 this is finished. */
|
|
|
1378 /* #### Chuck -- I've redone this function a bit. It looked like the
|
|
|
1379 case of not all the propagation blocks being added was not handled
|
|
|
1380 well. */
|
|
|
1381 /* #### Chuck -- I also think the double indirection of PROP is kind
|
|
|
1382 of bogus. A cleaner solution is just to check for
|
|
|
1383 Dynarr_length (prop) > 0. */
|
|
|
1384 /* #### This function also doesn't even pay attention to ADD_FAILED!
|
|
|
1385 This is seriously fucked! Seven ####'s in 130 lines -- is that a
|
|
|
1386 record? */
|
|
|
1387 int elt;
|
|
|
1388 prop_block_dynarr *add_failed;
|
|
|
1389 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
1390 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1391
|
|
|
1392 for (elt = 0; elt < Dynarr_length (*prop); elt++)
|
|
|
1393 {
|
|
|
1394 struct prop_block *pb = Dynarr_atp (*prop, elt);
|
|
|
1395
|
|
|
1396 switch (pb->type)
|
|
|
1397 {
|
|
|
1398 case PROP_CHAR:
|
|
|
1399 data->ch = pb->data.p_char.ch;
|
|
|
1400 data->bi_cursor_bufpos = pb->data.p_char.bi_cursor_bufpos;
|
|
|
1401 data->cursor_type = pb->data.p_char.cursor_type;
|
|
|
1402 add_failed = add_emchar_rune (data);
|
|
|
1403
|
|
|
1404 if (add_failed)
|
|
|
1405 goto oops_no_more_space;
|
|
|
1406 break;
|
|
|
1407 case PROP_STRING:
|
|
|
1408 if (pb->data.p_string.str)
|
|
|
1409 xfree (pb->data.p_string.str);
|
|
|
1410 /* #### bogus bogus -- this doesn't do anything!
|
|
|
1411 Should probably call add_bufbyte_string_runes(),
|
|
|
1412 once that function is fixed. */
|
|
|
1413 break;
|
|
|
1414 case PROP_MINIBUF_PROMPT:
|
|
|
1415 {
|
|
|
1416 face_index old_findex = data->findex;
|
|
|
1417 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
1418
|
|
|
1419 data->findex = DEFAULT_INDEX;
|
|
|
1420 data->bi_bufpos = 0;
|
|
|
1421 data->cursor_type = NO_CURSOR;
|
|
|
1422
|
|
|
1423 while (pb->data.p_string.len > 0)
|
|
|
1424 {
|
|
|
1425 data->ch = charptr_emchar (pb->data.p_string.str);
|
|
|
1426 add_failed = add_emchar_rune (data);
|
|
|
1427
|
|
|
1428 if (add_failed)
|
|
|
1429 {
|
|
|
1430 data->findex = old_findex;
|
|
|
1431 data->bi_bufpos = bi_old_bufpos;
|
|
|
1432 goto oops_no_more_space;
|
|
|
1433 }
|
|
|
1434 else
|
|
|
1435 {
|
|
|
1436 /* Complicated equivalent of ptr++, len-- */
|
|
|
1437 Bufbyte *oldpos = pb->data.p_string.str;
|
|
|
1438 INC_CHARPTR (pb->data.p_string.str);
|
|
|
1439 pb->data.p_string.len -= pb->data.p_string.str - oldpos;
|
|
|
1440 }
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 data->findex = old_findex;
|
|
|
1444 /* ##### FIXME FIXME FIXME -- Upon successful return from
|
|
|
1445 this function, data->bi_bufpos is automatically incremented.
|
|
|
1446 However, we don't want that to happen if we were adding
|
|
|
1447 the minibuffer prompt. */
|
|
|
1448 {
|
|
|
1449 struct buffer *buf =
|
|
|
1450 XBUFFER (WINDOW_BUFFER (XWINDOW (data->window)));
|
|
|
1451 /* #### Chuck fix this shit or I'm gonna scream! */
|
|
|
1452 if (bi_old_bufpos > BI_BUF_BEGV (buf))
|
|
|
1453 data->bi_bufpos = prev_bytind (buf, bi_old_bufpos);
|
|
|
1454 else
|
|
|
1455 /* #### is this correct? Does anyone know?
|
|
|
1456 Does anyone care? Is this a cheesy hack or what? */
|
|
|
1457 data->bi_bufpos = BI_BUF_BEGV (buf) - 1;
|
|
|
1458 }
|
|
|
1459 }
|
|
|
1460 break;
|
|
|
1461 case PROP_BLANK:
|
|
|
1462 {
|
|
|
1463 /* #### I think it's unnecessary and misleading to preserve
|
|
|
1464 the blank_width, as it implies that the value carries
|
|
|
1465 over from one rune to the next, which is wrong. */
|
|
|
1466 int old_width = data->blank_width;
|
|
|
1467 face_index old_findex = data->findex;
|
|
|
1468
|
|
|
1469 data->findex = pb->data.p_blank.findex;
|
|
|
1470 data->blank_width = pb->data.p_blank.width;
|
|
|
1471 data->bi_cursor_bufpos = 0;
|
|
|
1472 data->cursor_type = IGNORE_CURSOR;
|
|
|
1473
|
|
|
1474 if (data->pixpos + data->blank_width > data->max_pixpos)
|
|
|
1475 data->blank_width = data->max_pixpos - data->pixpos;
|
|
|
1476
|
|
|
1477 /* We pass a bogus value of char_tab_width. It shouldn't
|
|
|
1478 matter because unless something is really screwed up
|
|
|
1479 this call won't cause that arg to be used. */
|
|
|
1480 add_failed = add_blank_rune (data, XWINDOW (data->window), 0);
|
|
|
1481
|
|
|
1482 /* This can happen in the case where we have a tab which
|
|
|
1483 is wider than the window. */
|
|
|
1484 if (data->blank_width != pb->data.p_blank.width)
|
|
|
1485 {
|
|
|
1486 pb->data.p_blank.width -= data->blank_width;
|
|
|
1487 add_failed = ADD_FAILED;
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 data->findex = old_findex;
|
|
|
1491 data->blank_width = old_width;
|
|
|
1492
|
|
|
1493 if (add_failed)
|
|
|
1494 goto oops_no_more_space;
|
|
|
1495 }
|
|
|
1496 break;
|
|
|
1497 default:
|
|
|
1498 abort ();
|
|
|
1499 }
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 oops_no_more_space:
|
|
183
|
1503
|
|
0
|
1504 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
1505 data->cursor_type = old_cursor_type;
|
|
|
1506 if (elt < Dynarr_length (*prop))
|
|
|
1507 {
|
|
|
1508 Dynarr_delete_many (*prop, 0, elt);
|
|
|
1509 return *prop;
|
|
|
1510 }
|
|
|
1511 else
|
|
|
1512 {
|
|
|
1513 Dynarr_free (*prop);
|
|
|
1514 return NULL;
|
|
|
1515 }
|
|
|
1516 }
|
|
|
1517
|
|
|
1518 /* Add 'text layout glyphs at position POS_TYPE that are contained to
|
|
|
1519 the display block, but add all other types to the appropriate list
|
|
|
1520 of the display line. They will be added later by different
|
|
|
1521 routines. */
|
|
|
1522
|
|
|
1523 static prop_block_dynarr *
|
|
|
1524 add_glyph_rune (pos_data *data, struct glyph_block *gb, int pos_type,
|
|
|
1525 int allow_cursor, struct glyph_cachel *cachel)
|
|
|
1526 {
|
|
|
1527 struct window *w = XWINDOW (data->window);
|
|
|
1528
|
|
|
1529 /* A nil extent indicates a special glyph (ex. truncator). */
|
|
|
1530 if (NILP (gb->extent)
|
|
|
1531 || (pos_type == BEGIN_GLYPHS &&
|
|
|
1532 extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT)
|
|
|
1533 || (pos_type == END_GLYPHS &&
|
|
|
1534 extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT))
|
|
|
1535 {
|
|
|
1536 struct rune rb;
|
|
|
1537 int width;
|
|
|
1538 int xoffset = 0;
|
|
|
1539 int ascent, descent;
|
|
|
1540 Lisp_Object baseline;
|
|
|
1541 Lisp_Object face;
|
|
|
1542
|
|
|
1543 if (cachel)
|
|
|
1544 width = cachel->width;
|
|
|
1545 else
|
|
|
1546 width = glyph_width (gb->glyph, Qnil, data->findex, data->window);
|
|
|
1547
|
|
|
1548 if (!width)
|
|
|
1549 return NULL;
|
|
|
1550
|
|
|
1551 if (data->start_col)
|
|
|
1552 {
|
|
|
1553 prop_block_dynarr *retval;
|
|
|
1554 int glyph_char_width = width / space_width (w);
|
|
|
1555
|
|
|
1556 /* If we still have not fully scrolled horizontally after
|
|
|
1557 taking into account the width of the glyph, subtract its
|
|
|
1558 width and return. */
|
|
|
1559 if (glyph_char_width < data->start_col)
|
|
|
1560 {
|
|
|
1561 data->start_col -= glyph_char_width;
|
|
|
1562 return NULL;
|
|
|
1563 }
|
|
|
1564 else if (glyph_char_width == data->start_col)
|
|
|
1565 width = 0;
|
|
|
1566 else
|
|
|
1567 {
|
|
|
1568 xoffset = space_width (w) * data->start_col;
|
|
|
1569 width -= xoffset;
|
|
|
1570
|
|
|
1571 /* #### Can this happen? */
|
|
|
1572 if (width < 0)
|
|
|
1573 width = 0;
|
|
|
1574 }
|
|
|
1575
|
|
|
1576 data->start_col = 0;
|
|
|
1577 retval = add_hscroll_rune (data);
|
|
|
1578
|
|
|
1579 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1580 if (retval != NULL || !width)
|
|
|
1581 return retval;
|
|
|
1582 }
|
|
|
1583 else
|
|
|
1584 xoffset = 0;
|
|
|
1585
|
|
|
1586 if (data->pixpos + width > data->max_pixpos)
|
|
|
1587 {
|
|
|
1588 /* If this is the first object we are attempting to add to
|
|
|
1589 the line then we ignore the horizontal_clip threshold.
|
|
|
1590 Otherwise we will loop until the bottom of the window
|
|
|
1591 continually failing to add this glyph because it is wider
|
|
|
1592 than the window. We could alternatively just completely
|
|
|
1593 ignore the glyph and proceed from there but I think that
|
|
|
1594 this is a better solution. */
|
|
|
1595 if (Dynarr_length (data->db->runes)
|
|
|
1596 && data->max_pixpos - data->pixpos < horizontal_clip)
|
|
|
1597 return ADD_FAILED;
|
|
|
1598 else
|
|
|
1599 width = data->max_pixpos - data->pixpos;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 if (cachel)
|
|
|
1603 {
|
|
|
1604 ascent = cachel->ascent;
|
|
|
1605 descent = cachel->descent;
|
|
|
1606 }
|
|
|
1607 else
|
|
|
1608 {
|
|
|
1609 ascent = glyph_ascent (gb->glyph, Qnil, data->findex, data->window);
|
|
|
1610 descent = glyph_descent (gb->glyph, Qnil, data->findex,
|
|
|
1611 data->window);
|
|
|
1612 }
|
|
|
1613
|
|
|
1614 baseline = glyph_baseline (gb->glyph, data->window);
|
|
|
1615
|
|
|
1616 if (glyph_contrib_p (gb->glyph, data->window))
|
|
|
1617 {
|
|
|
1618 /* A pixmap that has not had a baseline explicitly set. Its
|
|
|
1619 contribution will be determined later. */
|
|
|
1620 if (NILP (baseline))
|
|
|
1621 {
|
|
|
1622 int height = ascent + descent;
|
|
|
1623 data->max_pixmap_height = max (data->max_pixmap_height, height);
|
|
|
1624 }
|
|
|
1625
|
|
|
1626 /* A string so determine contribution normally. */
|
|
|
1627 else if (EQ (baseline, Qt))
|
|
|
1628 {
|
|
|
1629 data->new_ascent = max (data->new_ascent, ascent);
|
|
|
1630 data->new_descent = max (data->new_descent, descent);
|
|
|
1631 }
|
|
|
1632
|
|
|
1633 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
1634 contribution here. */
|
|
|
1635 else if (INTP (baseline))
|
|
|
1636 {
|
|
|
1637 int height = ascent + descent;
|
|
|
1638 int pix_ascent, pix_descent;
|
|
|
1639
|
|
|
1640 pix_ascent = height * XINT (baseline) / 100;
|
|
|
1641 pix_descent = height - pix_ascent;
|
|
|
1642
|
|
|
1643 data->new_ascent = max (data->new_ascent, pix_ascent);
|
|
|
1644 data->new_descent = max (data->new_descent, pix_descent);
|
|
|
1645 }
|
|
|
1646
|
|
|
1647 /* Otherwise something is screwed up. */
|
|
|
1648 else
|
|
|
1649 abort ();
|
|
|
1650 }
|
|
|
1651
|
|
|
1652 face = glyph_face (gb->glyph, data->window);
|
|
|
1653 if (NILP (face))
|
|
|
1654 rb.findex = data->findex;
|
|
|
1655 else
|
|
|
1656 rb.findex = get_builtin_face_cache_index (w, face);
|
|
|
1657
|
|
|
1658 rb.xpos = data->pixpos;
|
|
|
1659 rb.width = width;
|
|
|
1660 rb.bufpos = 0; /* glyphs are never "at" anywhere */
|
|
|
1661 if (data->bi_endpos)
|
|
243
|
1662 /* #### is this necessary at all? */
|
|
|
1663 rb.endpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1664 data->bi_endpos);
|
|
0
|
1665 else
|
|
|
1666 rb.endpos = 0;
|
|
|
1667 rb.type = RUNE_DGLYPH;
|
|
|
1668 /* #### Ben sez: this is way bogus if the glyph is a string.
|
|
|
1669 You should not make the output routines have to cope with
|
|
|
1670 this. The string could contain Mule characters, or non-
|
|
|
1671 printable characters, or characters to be passed through
|
|
|
1672 the display table, or non-character objects (when this gets
|
|
|
1673 implemented), etc. Instead, this routine here should parse
|
|
|
1674 the string into a series of runes. */
|
|
|
1675 rb.object.dglyph.glyph = gb->glyph;
|
|
|
1676 rb.object.dglyph.extent = gb->extent;
|
|
|
1677 rb.object.dglyph.xoffset = xoffset;
|
|
|
1678
|
|
|
1679 if (allow_cursor)
|
|
|
1680 {
|
|
243
|
1681 rb.bufpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1682 data->bi_bufpos);
|
|
0
|
1683
|
|
|
1684 if (data->cursor_type == CURSOR_ON)
|
|
|
1685 {
|
|
|
1686 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1687 {
|
|
|
1688 rb.cursor_type = CURSOR_ON;
|
|
|
1689 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1690 }
|
|
|
1691 else
|
|
|
1692 rb.cursor_type = CURSOR_OFF;
|
|
|
1693 }
|
|
|
1694 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1695 {
|
|
|
1696 rb.cursor_type = CURSOR_ON;
|
|
|
1697 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1698 data->cursor_type = NO_CURSOR;
|
|
|
1699 }
|
|
|
1700 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
1701 rb.cursor_type = IGNORE_CURSOR;
|
|
|
1702 else if (data->cursor_type == NO_CURSOR)
|
|
|
1703 rb.cursor_type = NO_CURSOR;
|
|
|
1704 else
|
|
|
1705 rb.cursor_type = CURSOR_OFF;
|
|
|
1706 }
|
|
|
1707 else
|
|
|
1708 rb.cursor_type = CURSOR_OFF;
|
|
|
1709
|
|
|
1710 Dynarr_add (data->db->runes, rb);
|
|
|
1711 data->pixpos += width;
|
|
|
1712
|
|
|
1713 return NULL;
|
|
|
1714 }
|
|
|
1715 else
|
|
|
1716 {
|
|
|
1717 if (!NILP (glyph_face (gb->glyph, data->window)))
|
|
|
1718 gb->findex =
|
|
|
1719 get_builtin_face_cache_index (w, glyph_face (gb->glyph,
|
|
|
1720 data->window));
|
|
|
1721 else
|
|
|
1722 gb->findex = data->findex;
|
|
|
1723
|
|
|
1724 if (pos_type == BEGIN_GLYPHS)
|
|
|
1725 {
|
|
|
1726 if (!data->dl->left_glyphs)
|
|
185
|
1727 data->dl->left_glyphs = Dynarr_new (glyph_block);
|
|
0
|
1728 Dynarr_add (data->dl->left_glyphs, *gb);
|
|
|
1729 return NULL;
|
|
|
1730 }
|
|
|
1731 else if (pos_type == END_GLYPHS)
|
|
|
1732 {
|
|
|
1733 if (!data->dl->right_glyphs)
|
|
185
|
1734 data->dl->right_glyphs = Dynarr_new (glyph_block);
|
|
0
|
1735 Dynarr_add (data->dl->right_glyphs, *gb);
|
|
|
1736 return NULL;
|
|
|
1737 }
|
|
|
1738 else
|
|
|
1739 abort (); /* there are no unknown types */
|
|
|
1740 }
|
|
|
1741
|
|
|
1742 return NULL; /* shut up compiler */
|
|
|
1743 }
|
|
|
1744
|
|
|
1745 /* Add all glyphs at position POS_TYPE that are contained in the given
|
|
|
1746 data. */
|
|
|
1747
|
|
|
1748 static prop_block_dynarr *
|
|
|
1749 add_glyph_runes (pos_data *data, int pos_type)
|
|
|
1750 {
|
|
|
1751 /* #### This still needs to handle the start_col parameter. Duh, Chuck,
|
|
|
1752 why didn't you just modify add_glyph_rune in the first place? */
|
|
|
1753 int elt;
|
|
|
1754 glyph_block_dynarr *glyph_arr = (pos_type == BEGIN_GLYPHS
|
|
|
1755 ? data->ef->begin_glyphs
|
|
|
1756 : data->ef->end_glyphs);
|
|
|
1757 prop_block_dynarr *prop;
|
|
|
1758
|
|
|
1759 for (elt = 0; elt < Dynarr_length (glyph_arr); elt++)
|
|
|
1760 {
|
|
|
1761 prop = add_glyph_rune (data, Dynarr_atp (glyph_arr, elt), pos_type, 0,
|
|
|
1762 0);
|
|
|
1763
|
|
|
1764 if (prop)
|
|
|
1765 {
|
|
|
1766 /* #### Add some propagation information. */
|
|
|
1767 return prop;
|
|
|
1768 }
|
|
|
1769 }
|
|
|
1770
|
|
|
1771 Dynarr_reset (glyph_arr);
|
|
|
1772
|
|
|
1773 return NULL;
|
|
|
1774 }
|
|
|
1775
|
|
|
1776 /* Given a position for a buffer in a window, ensure that the given
|
|
|
1777 display line DL accurately represents the text on a line starting
|
|
|
1778 at the given position.
|
|
|
1779
|
|
|
1780 NOTE NOTE NOTE NOTE: This function works with and returns Bytinds.
|
|
|
1781 You must do appropriate conversion. */
|
|
|
1782
|
|
|
1783 static Bytind
|
|
|
1784 create_text_block (struct window *w, struct display_line *dl,
|
|
|
1785 Bytind bi_start_pos, int start_col,
|
|
|
1786 prop_block_dynarr **prop, int type)
|
|
|
1787 {
|
|
|
1788 struct frame *f = XFRAME (w->frame);
|
|
|
1789 struct buffer *b = XBUFFER (w->buffer);
|
|
|
1790 struct device *d = XDEVICE (f->device);
|
|
|
1791
|
|
|
1792 pos_data data;
|
|
|
1793 struct Lisp_Vector *dt = 0;
|
|
|
1794
|
|
|
1795 /* Don't display anything in the minibuffer if this window is not on
|
|
|
1796 a selected frame. We consider all other windows to be active
|
|
|
1797 minibuffers as it simplifies the coding. */
|
|
|
1798 int active_minibuffer = (!MINI_WINDOW_P (w) ||
|
|
|
1799 (f == device_selected_frame (d)) ||
|
|
|
1800 is_surrogate_for_selected_frame (f));
|
|
|
1801
|
|
|
1802 int truncate_win = window_truncation_on (w);
|
|
|
1803 int end_glyph_width;
|
|
|
1804
|
|
|
1805 /* If the buffer's value of selective_display is an integer then
|
|
|
1806 only lines that start with less than selective_display columns of
|
|
|
1807 space will be displayed. If selective_display is t then all text
|
|
|
1808 after a ^M is invisible. */
|
|
|
1809 int selective = (INTP (b->selective_display)
|
|
|
1810 ? XINT (b->selective_display)
|
|
|
1811 : ((!NILP (b->selective_display) ? -1 : 0)));
|
|
|
1812
|
|
|
1813 /* The variable ctl-arrow allows the user to specify what characters
|
|
|
1814 can actually be displayed and which octal should be used for.
|
|
|
1815 #### This variable should probably have some rethought done to
|
|
|
1816 it.
|
|
|
1817
|
|
|
1818 #### It would also be really nice if you could specify that
|
|
|
1819 the characters come out in hex instead of in octal. Mule
|
|
|
1820 does that by adding a ctl-hexa variable similar to ctl-arrow,
|
|
|
1821 but that's bogus -- we need a more general solution. I
|
|
|
1822 think you need to extend the concept of display tables
|
|
|
1823 into a more general conversion mechanism. Ideally you
|
|
|
1824 could specify a Lisp function that converts characters,
|
|
|
1825 but this violates the Second Golden Rule and besides would
|
|
|
1826 make things way way way way slow. An idea I like is to
|
|
|
1827 be able to specify multiple display tables instead of just
|
|
|
1828 one. Each display table can specify conversions for some
|
|
|
1829 characters and leave others unchanged. The way the
|
|
|
1830 character gets displayed is determined by the first display
|
|
|
1831 table with a binding for that character. This way, you
|
|
|
1832 could call a function `enable-hex-display' that adds a
|
|
|
1833 pre-defined hex display-table (or maybe computes one if
|
|
|
1834 you give weird parameters to the function) and adds it
|
|
|
1835 to the list of display tables for the current buffer.
|
|
|
1836
|
|
|
1837 Unfortunately there are still problems dealing with Mule
|
|
|
1838 characters. For example, maybe I want to specify that
|
|
|
1839 all extended characters (i.e. >= 256) are displayed in hex.
|
|
|
1840 It's not reasonable to create a mapping for all possible
|
|
|
1841 such characters, because there are about 2^19 of them.
|
|
|
1842 One way of dealing with this is to extend the concept
|
|
|
1843 of what a display table is. Currently it's only allowed
|
|
|
1844 to be a 256-entry vector. Instead, it should be something
|
|
|
1845 like:
|
|
|
1846
|
|
|
1847 a) A 256-entry vector, for backward compatibility
|
|
|
1848 b) Some sort of hashtable, mapping characters to values
|
|
|
1849 c) A list that specifies a range of values and the
|
|
|
1850 mapping to provide for those values.
|
|
|
1851
|
|
|
1852 Also, extend the concept of "mapping" to include a
|
|
|
1853 printf-like spec. Then, you could make all extended
|
|
|
1854 characters show up as hex with a display table like
|
|
|
1855
|
|
|
1856 ((256 . 524288) . "%x")
|
|
|
1857
|
|
|
1858 Since more than one display table is possible, you have
|
|
|
1859 great flexibility in mapping ranges of characters.
|
|
|
1860 */
|
|
|
1861 Emchar printable_min = (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
|
1862 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
1863 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
1864 ? 255 : 160));
|
|
|
1865
|
|
|
1866 /* The text display block for this display line. */
|
|
|
1867 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
1868
|
|
|
1869 /* The first time through the main loop we need to force the glyph
|
|
|
1870 data to be updated. */
|
|
|
1871 int initial = 1;
|
|
|
1872
|
|
|
1873 /* Apparently the new extent_fragment_update returns an end position
|
|
|
1874 equal to the position passed in if there are no more runs to be
|
|
|
1875 displayed. */
|
|
|
1876 int no_more_frags = 0;
|
|
|
1877
|
|
|
1878 Lisp_Object synch_minibuffers_value =
|
|
|
1879 symbol_value_in_buffer (Qsynchronize_minibuffers, w->buffer);
|
|
183
|
1880
|
|
0
|
1881 dl->used_prop_data = 0;
|
|
|
1882 dl->num_chars = 0;
|
|
|
1883
|
|
|
1884 memset (&data, 0, sizeof (data));
|
|
|
1885 data.ef = extent_fragment_new (w->buffer, f);
|
|
|
1886
|
|
|
1887 /* These values are used by all of the rune addition routines. We add
|
|
|
1888 them to this structure for ease of passing. */
|
|
|
1889 data.d = d;
|
|
|
1890 XSETWINDOW (data.window, w);
|
|
|
1891 data.db = db;
|
|
|
1892 data.dl = dl;
|
|
|
1893
|
|
|
1894 data.bi_bufpos = bi_start_pos;
|
|
|
1895 data.pixpos = dl->bounds.left_in;
|
|
|
1896 data.last_charset = Qunbound;
|
|
94
|
1897 data.last_findex = DEFAULT_INDEX;
|
|
0
|
1898 data.result_str = Qnil;
|
|
|
1899
|
|
|
1900 /* Set the right boundary adjusting it to take into account any end
|
|
|
1901 glyph. Save the width of the end glyph for later use. */
|
|
|
1902 data.max_pixpos = dl->bounds.right_in;
|
|
|
1903 if (truncate_win)
|
|
|
1904 end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
|
|
|
1905 else
|
|
|
1906 end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
|
|
|
1907 data.max_pixpos -= end_glyph_width;
|
|
|
1908
|
|
|
1909 if (cursor_in_echo_area)
|
|
|
1910 {
|
|
|
1911 if (MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
1912 {
|
|
|
1913 data.bi_cursor_bufpos = BI_BUF_ZV (b);
|
|
|
1914 data.cursor_type = CURSOR_ON;
|
|
|
1915 }
|
|
|
1916 else
|
|
|
1917 data.cursor_type = NO_CURSOR;
|
|
|
1918 }
|
|
|
1919 else if (MINI_WINDOW_P (w) && !active_minibuffer)
|
|
|
1920 data.cursor_type = NO_CURSOR;
|
|
151
|
1921 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)) &&
|
|
|
1922 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
1923 d == XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d))))&&
|
|
|
1924 f == XFRAME(DEVICE_SELECTED_FRAME(d)))
|
|
0
|
1925 {
|
|
|
1926 data.bi_cursor_bufpos = BI_BUF_PT (b);
|
|
|
1927 data.cursor_type = CURSOR_ON;
|
|
|
1928 }
|
|
|
1929 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)))
|
|
|
1930 {
|
|
|
1931 data.bi_cursor_bufpos = bi_marker_position (w->pointm[type]);
|
|
|
1932 data.cursor_type = CURSOR_ON;
|
|
|
1933 }
|
|
|
1934 else
|
|
|
1935 data.cursor_type = NO_CURSOR;
|
|
|
1936 data.cursor_x = -1;
|
|
|
1937
|
|
|
1938 data.start_col = w->hscroll;
|
|
|
1939 data.bi_start_col_enabled = (w->hscroll ? bi_start_pos : 0);
|
|
217
|
1940 data.hscroll_glyph_width_adjust = 0;
|
|
0
|
1941
|
|
|
1942 /* We regenerate the line from the very beginning. */
|
|
|
1943 Dynarr_reset (db->runes);
|
|
|
1944
|
|
|
1945 /* Why is this less than or equal and not just less than? If the
|
|
|
1946 starting position is already equal to the maximum we can't add
|
|
|
1947 anything else, right? Wrong. We might still have a newline to
|
|
|
1948 add. A newline can use the room allocated for an end glyph since
|
|
|
1949 if we add it we know we aren't going to be adding any end
|
|
|
1950 glyph. */
|
|
|
1951
|
|
|
1952 /* #### Chuck -- I think this condition should be while (1).
|
|
|
1953 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
1954 and the begin-glyph ends exactly at the end of the window, the
|
|
|
1955 end-glyph and text might not be displayed. while (1) ensures
|
|
|
1956 that the loop terminates only when either (a) there is
|
|
|
1957 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
1958
|
|
|
1959 #### Also I think you need to ensure that the operation
|
|
|
1960 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
1961 can't get interrupted in the middle. If you run off the end
|
|
|
1962 of the line during that operation, then you keep accumulating
|
|
|
1963 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
1964 there's a begin glyph at a particular position and attempting
|
|
|
1965 to display that glyph results in window-end being hit and
|
|
|
1966 propagation data being generated, then the character at that
|
|
|
1967 position won't be displayed.
|
|
|
1968
|
|
|
1969 #### See also the comment after the end of this loop, below.
|
|
|
1970 */
|
|
|
1971 while (data.pixpos <= data.max_pixpos
|
|
|
1972 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
1973 {
|
|
|
1974 /* #### This check probably should not be necessary. */
|
|
|
1975 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
1976 {
|
|
|
1977 /* #### urk! More of this lossage! */
|
|
|
1978 data.bi_bufpos--;
|
|
|
1979 goto done;
|
|
|
1980 }
|
|
|
1981
|
|
|
1982 /* If selective display was an integer and we aren't working on
|
|
|
1983 a continuation line then find the next line we are actually
|
|
|
1984 supposed to display. */
|
|
|
1985 if (selective > 0
|
|
|
1986 && (data.bi_bufpos == BI_BUF_BEGV (b)
|
|
|
1987 || BUF_FETCH_CHAR (b, prev_bytind (b, data.bi_bufpos)) == '\n'))
|
|
|
1988 {
|
|
|
1989 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
1990 {
|
|
|
1991 data.bi_bufpos =
|
|
|
1992 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
1993 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
1994 {
|
|
|
1995 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
1996 goto done;
|
|
|
1997 }
|
|
|
1998 }
|
|
|
1999 }
|
|
|
2000
|
|
|
2001 /* Check for face changes. */
|
|
|
2002 if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
|
|
|
2003 {
|
|
|
2004 /* Now compute the face and begin/end-glyph information. */
|
|
|
2005 data.findex =
|
|
|
2006 /* Remember that the extent-fragment routines deal in Bytind's. */
|
|
|
2007 extent_fragment_update (w, data.ef, data.bi_bufpos);
|
|
|
2008
|
|
|
2009 if (data.bi_bufpos == data.ef->end)
|
|
|
2010 no_more_frags = 1;
|
|
|
2011
|
|
|
2012 dt = get_display_table (w, data.findex);
|
|
|
2013 }
|
|
|
2014 initial = 0;
|
|
|
2015
|
|
|
2016 /* Determine what is next to be displayed. We first handle any
|
|
|
2017 glyphs returned by glyphs_at_bufpos. If there are no glyphs to
|
|
|
2018 display then we determine what to do based on the character at the
|
|
|
2019 current buffer position. */
|
|
|
2020
|
|
|
2021 /* If the current position is covered by an invisible extent, do
|
|
|
2022 nothing (except maybe add some ellipses).
|
|
|
2023
|
|
|
2024 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
2025 invisible extent should be investigated further. This is
|
|
|
2026 fairly low priority though. */
|
|
|
2027 if (data.ef->invisible)
|
|
|
2028 {
|
|
|
2029 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
2030 really know what I'm doing. */
|
|
|
2031 if (*prop)
|
|
|
2032 {
|
|
|
2033 Dynarr_free (*prop);
|
|
|
2034 *prop = 0;
|
|
|
2035 }
|
|
|
2036
|
|
|
2037 /* The extent fragment code only sets this when we should
|
|
|
2038 really display the ellipses. It makes sure the ellipses
|
|
|
2039 don't get displayed more than once in a row. */
|
|
|
2040 if (data.ef->invisible_ellipses)
|
|
|
2041 {
|
|
|
2042 struct glyph_block gb;
|
|
|
2043
|
|
|
2044 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
2045 data.ef->invisible_ellipses = 0;
|
|
|
2046 gb.extent = Qnil;
|
|
|
2047 gb.glyph = Vinvisible_text_glyph;
|
|
|
2048 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2049 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2050 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
2051 is to display a newline (for compatibility with
|
|
|
2052 selective-display-ellipses)? Maybe that's too
|
|
|
2053 abstruse. */
|
|
|
2054 if (*prop)
|
|
|
2055 goto done;
|
|
|
2056 }
|
|
|
2057
|
|
|
2058 /* If point is in an invisible region we place it on the
|
|
|
2059 next visible character. */
|
|
|
2060 if (data.cursor_type == CURSOR_ON
|
|
|
2061 && data.bi_bufpos == data.bi_cursor_bufpos)
|
|
|
2062 {
|
|
|
2063 data.cursor_type = NEXT_CURSOR;
|
|
|
2064 }
|
|
|
2065
|
|
|
2066 /* #### What if we we're dealing with a display table? */
|
|
|
2067 if (data.start_col)
|
|
|
2068 data.start_col--;
|
|
|
2069
|
|
|
2070 if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2071 goto done;
|
|
|
2072 else
|
|
|
2073 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2074 }
|
|
|
2075
|
|
|
2076 /* If there is propagation data, then it represents the current
|
|
|
2077 buffer position being displayed. Add them and advance the
|
|
|
2078 position counter. This might also add the minibuffer
|
|
|
2079 prompt. */
|
|
|
2080 else if (*prop)
|
|
|
2081 {
|
|
|
2082 dl->used_prop_data = 1;
|
|
|
2083 *prop = add_propagation_runes (prop, &data);
|
|
|
2084
|
|
|
2085 if (*prop)
|
|
|
2086 goto done; /* gee, a really narrow window */
|
|
|
2087 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2088 goto done;
|
|
|
2089 else if (data.bi_bufpos < BI_BUF_BEGV (b))
|
|
|
2090 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
|
2091 data.bi_bufpos = BI_BUF_BEGV (b);
|
|
183
|
2092 else
|
|
0
|
2093 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2094 }
|
|
|
2095
|
|
|
2096 /* If there are end glyphs, add them to the line. These are
|
|
|
2097 the end glyphs for the previous run of text. We add them
|
|
|
2098 here rather than doing them at the end of handling the
|
|
|
2099 previous run so that glyphs at the beginning and end of
|
|
|
2100 a line are handled correctly. */
|
|
|
2101 else if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
2102 {
|
|
|
2103 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
|
2104 if (*prop)
|
|
|
2105 goto done;
|
|
|
2106 }
|
|
|
2107
|
|
|
2108 /* If there are begin glyphs, add them to the line. */
|
|
|
2109 else if (Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
2110 {
|
|
|
2111 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
|
2112 if (*prop)
|
|
|
2113 goto done;
|
|
|
2114 }
|
|
|
2115
|
|
|
2116 /* If at end-of-buffer, we've already processed begin and
|
|
|
2117 end-glyphs at this point and there's no text to process,
|
|
|
2118 so we're done. */
|
|
|
2119 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2120 goto done;
|
|
|
2121
|
|
|
2122 else
|
|
|
2123 {
|
|
|
2124 /* Get the character at the current buffer position. */
|
|
|
2125 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
|
2126
|
|
|
2127 /* If there is a display table entry for it, hand it off to
|
|
|
2128 add_disp_table_entry_runes and let it worry about it. */
|
|
|
2129 if (dt && !NILP (DISP_CHAR_ENTRY (dt, data.ch)))
|
|
|
2130 {
|
|
|
2131 *prop =
|
|
|
2132 add_disp_table_entry_runes (&data,
|
|
|
2133 DISP_CHAR_ENTRY (dt, data.ch));
|
|
|
2134
|
|
|
2135 if (*prop)
|
|
|
2136 goto done;
|
|
|
2137 }
|
|
|
2138
|
|
|
2139 /* Check if we have hit a newline character. If so, add a marker
|
|
|
2140 to the line and end this loop. */
|
|
|
2141 else if (data.ch == '\n')
|
|
|
2142 {
|
|
|
2143 /* We aren't going to be adding an end glyph so give its
|
|
|
2144 space back in order to make sure that the cursor can
|
|
|
2145 fit. */
|
|
|
2146 data.max_pixpos += end_glyph_width;
|
|
|
2147
|
|
|
2148 if (selective > 0
|
|
|
2149 && (bi_spaces_at_point
|
|
|
2150 (b, next_bytind (b, data.bi_bufpos))
|
|
|
2151 >= selective))
|
|
|
2152 {
|
|
|
2153 if (!NILP (b->selective_display_ellipses))
|
|
|
2154 {
|
|
|
2155 struct glyph_block gb;
|
|
|
2156
|
|
|
2157 gb.extent = Qnil;
|
|
|
2158 gb.glyph = Vinvisible_text_glyph;
|
|
|
2159 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2160 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2161 }
|
|
|
2162 else
|
|
|
2163 {
|
|
|
2164 /* Cheesy, cheesy, cheesy. We mark the end of the
|
|
|
2165 line with a special "character rune" whose width
|
|
|
2166 is the EOL cursor width and whose character is
|
|
|
2167 the non-printing character '\n'. */
|
|
|
2168 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2169 *prop = add_emchar_rune (&data);
|
|
|
2170 }
|
|
|
2171
|
|
|
2172 /* We need to set data.bi_bufpos to the start of the
|
|
|
2173 next visible region in order to make this line
|
|
|
2174 appear to contain all of the invisible area.
|
|
|
2175 Otherwise, the line cache won't work
|
|
|
2176 correctly. */
|
|
|
2177 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2178 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
2179 {
|
|
|
2180 data.bi_bufpos =
|
|
|
2181 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2182 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
2183 {
|
|
|
2184 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
2185 break;
|
|
|
2186 }
|
|
|
2187 }
|
|
|
2188 if (BI_BUF_FETCH_CHAR
|
|
|
2189 (b, prev_bytind (b, data.bi_bufpos)) == '\n')
|
|
|
2190 DEC_BYTIND (b, data.bi_bufpos);
|
|
|
2191 }
|
|
|
2192 else
|
|
|
2193 {
|
|
|
2194 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2195 *prop = add_emchar_rune (&data);
|
|
|
2196 }
|
|
|
2197
|
|
|
2198 goto done;
|
|
|
2199 }
|
|
|
2200
|
|
|
2201 /* If the current character is ^M, and selective display is
|
|
|
2202 enabled, then add the invisible-text-glyph if
|
|
|
2203 selective-display-ellipses is set. In any case, this
|
|
|
2204 line is done. */
|
|
|
2205 else if (data.ch == (('M' & 037)) && selective == -1)
|
|
|
2206 {
|
|
|
2207 Bytind bi_next_bufpos;
|
|
|
2208
|
|
|
2209 /* Find the buffer position at the end of the line. */
|
|
|
2210 bi_next_bufpos =
|
|
|
2211 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2212 if (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_next_bufpos))
|
|
|
2213 == '\n')
|
|
|
2214 DEC_BYTIND (b, bi_next_bufpos);
|
|
|
2215
|
|
|
2216 /* If the cursor is somewhere in the elided text make
|
|
|
2217 sure that the cursor gets drawn appropriately. */
|
|
|
2218 if (data.cursor_type == CURSOR_ON
|
|
|
2219 && (data.bi_cursor_bufpos >= data.bi_bufpos &&
|
|
|
2220 data.bi_cursor_bufpos < bi_next_bufpos))
|
|
|
2221 {
|
|
|
2222 data.cursor_type = NEXT_CURSOR;
|
|
|
2223 }
|
|
|
2224
|
|
|
2225 /* We won't be adding a truncation or continuation glyph
|
|
|
2226 so give up the room allocated for them. */
|
|
|
2227 data.max_pixpos += end_glyph_width;
|
|
|
2228
|
|
|
2229 if (!NILP (b->selective_display_ellipses))
|
|
|
2230 {
|
|
|
2231 /* We don't propagate anything from the invisible
|
|
|
2232 text glyph if it fails to fit. This is
|
|
|
2233 intentional. */
|
|
|
2234 struct glyph_block gb;
|
|
|
2235
|
|
|
2236 gb.extent = Qnil;
|
|
|
2237 gb.glyph = Vinvisible_text_glyph;
|
|
|
2238 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1,
|
|
|
2239 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2240 }
|
|
|
2241
|
|
|
2242 /* Set the buffer position to the end of the line. We
|
|
|
2243 need to do this before potentially adding a newline
|
|
|
2244 so that the cursor flag will get set correctly (if
|
|
|
2245 needed). */
|
|
|
2246 data.bi_bufpos = bi_next_bufpos;
|
|
|
2247
|
|
|
2248 if (NILP (b->selective_display_ellipses)
|
|
|
2249 || data.bi_cursor_bufpos == bi_next_bufpos)
|
|
|
2250 {
|
|
|
2251 /* We have to at least add a newline character so
|
|
|
2252 that the cursor shows up properly. */
|
|
|
2253 data.ch = '\n';
|
|
|
2254 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2255 data.findex = DEFAULT_INDEX;
|
|
|
2256 data.start_col = 0;
|
|
|
2257 data.bi_start_col_enabled = 0;
|
|
|
2258
|
|
|
2259 add_emchar_rune (&data);
|
|
|
2260 }
|
|
|
2261
|
|
|
2262 /* This had better be a newline but doing it this way
|
|
|
2263 we'll see obvious incorrect results if it isn't. No
|
|
|
2264 need to abort here. */
|
|
|
2265 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
|
2266
|
|
|
2267 goto done;
|
|
|
2268 }
|
|
|
2269
|
|
|
2270 /* If the current character is considered to be printable, then
|
|
|
2271 just add it. */
|
|
|
2272 else if (data.ch >= printable_min)
|
|
|
2273 {
|
|
|
2274 *prop = add_emchar_rune (&data);
|
|
|
2275 if (*prop)
|
|
|
2276 goto done;
|
|
|
2277 }
|
|
|
2278
|
|
|
2279 /* If the current character is a tab, determine the next tab
|
|
|
2280 starting position and add a blank rune which extends from the
|
|
|
2281 current pixel position to that starting position. */
|
|
|
2282 else if (data.ch == '\t')
|
|
|
2283 {
|
|
|
2284 int tab_start_pixpos = data.pixpos;
|
|
|
2285 int next_tab_start;
|
|
|
2286 int char_tab_width;
|
|
|
2287 int prop_width = 0;
|
|
|
2288
|
|
|
2289 if (data.start_col > 1)
|
|
|
2290 tab_start_pixpos -= (space_width (w) * (data.start_col - 1));
|
|
|
2291
|
|
217
|
2292 next_tab_start =
|
|
|
2293 next_tab_position (w, tab_start_pixpos,
|
|
|
2294 dl->bounds.left_in +
|
|
|
2295 data.hscroll_glyph_width_adjust);
|
|
0
|
2296 if (next_tab_start > data.max_pixpos)
|
|
|
2297 {
|
|
|
2298 prop_width = next_tab_start - data.max_pixpos;
|
|
|
2299 next_tab_start = data.max_pixpos;
|
|
|
2300 }
|
|
|
2301 data.blank_width = next_tab_start - data.pixpos;
|
|
|
2302 char_tab_width =
|
|
|
2303 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
2304
|
|
|
2305 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
2306
|
|
|
2307 /* add_blank_rune is only supposed to be called with
|
|
|
2308 sizes guaranteed to fit in the available space. */
|
|
|
2309 assert (!(*prop));
|
|
|
2310
|
|
|
2311 if (prop_width)
|
|
|
2312 {
|
|
|
2313 struct prop_block pb;
|
|
185
|
2314 *prop = Dynarr_new (prop_block);
|
|
0
|
2315
|
|
|
2316 pb.type = PROP_BLANK;
|
|
|
2317 pb.data.p_blank.width = prop_width;
|
|
|
2318 pb.data.p_blank.findex = data.findex;
|
|
|
2319 Dynarr_add (*prop, pb);
|
|
|
2320
|
|
|
2321 goto done;
|
|
|
2322 }
|
|
|
2323 }
|
|
|
2324
|
|
|
2325 /* If character is a control character, pass it off to
|
|
|
2326 add_control_char_runes.
|
|
|
2327
|
|
|
2328 The is_*() routines have undefined results on
|
|
|
2329 arguments outside of the range [-1, 255]. (This
|
|
|
2330 often bites people who carelessly use `char' instead
|
|
|
2331 of `unsigned char'.)
|
|
|
2332 */
|
|
|
2333 else if (data.ch < 0x100 && iscntrl ((Bufbyte) data.ch))
|
|
|
2334 {
|
|
|
2335 *prop = add_control_char_runes (&data, b);
|
|
|
2336
|
|
|
2337 if (*prop)
|
|
|
2338 goto done;
|
|
|
2339 }
|
|
|
2340
|
|
|
2341 /* If the character is above the ASCII range and we have not
|
|
|
2342 already handled it, then print it as an octal number. */
|
|
|
2343 else if (data.ch >= 0200)
|
|
|
2344 {
|
|
|
2345 *prop = add_octal_runes (&data);
|
|
|
2346
|
|
|
2347 if (*prop)
|
|
|
2348 goto done;
|
|
|
2349 }
|
|
|
2350
|
|
|
2351 /* Assume the current character is considered to be printable,
|
|
|
2352 then just add it. */
|
|
|
2353 else
|
|
|
2354 {
|
|
|
2355 *prop = add_emchar_rune (&data);
|
|
|
2356 if (*prop)
|
|
|
2357 goto done;
|
|
|
2358 }
|
|
|
2359
|
|
|
2360 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2361 }
|
|
|
2362 }
|
|
|
2363
|
|
|
2364 done:
|
|
|
2365
|
|
|
2366 /* Determine the starting point of the next line if we did not hit the
|
|
|
2367 end of the buffer. */
|
|
|
2368 if (data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2369 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
2370 {
|
|
|
2371 /* #### This check is not correct. If the line terminated
|
|
|
2372 due to a begin-glyph or end-glyph hitting window-end, then
|
|
|
2373 data.ch will not point to the character at data.bi_bufpos. If
|
|
|
2374 you make the two changes mentioned at the top of this loop,
|
|
|
2375 you should be able to say '(if (*prop))'. That should also
|
|
|
2376 make it possible to eliminate the data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2377 check. */
|
|
|
2378
|
|
|
2379 /* The common case is that the line ended because we hit a newline.
|
|
|
2380 In that case, the next character is just the next buffer
|
|
|
2381 position. */
|
|
|
2382 if (data.ch == '\n')
|
|
|
2383 {
|
|
|
2384 /* If data.start_col_enabled is still true, then the window is
|
|
|
2385 scrolled far enough so that nothing on this line is visible.
|
|
|
2386 We need to stick a trunctation glyph at the beginning of the
|
|
|
2387 line in that case unless the line is completely blank. */
|
|
|
2388 if (data.bi_start_col_enabled)
|
|
|
2389 {
|
|
|
2390 if (data.cursor_type == CURSOR_ON)
|
|
|
2391 {
|
|
|
2392 if (data.bi_cursor_bufpos >= bi_start_pos
|
|
|
2393 && data.bi_cursor_bufpos <= data.bi_bufpos)
|
|
|
2394 data.bi_cursor_bufpos = data.bi_bufpos;
|
|
|
2395 }
|
|
|
2396 data.findex = DEFAULT_INDEX;
|
|
|
2397 data.start_col = 0;
|
|
|
2398 data.bi_start_col_enabled = 0;
|
|
|
2399
|
|
|
2400 if (data.bi_bufpos != bi_start_pos)
|
|
|
2401 {
|
|
|
2402 struct glyph_block gb;
|
|
|
2403
|
|
|
2404 gb.extent = Qnil;
|
|
|
2405 gb.glyph = Vhscroll_glyph;
|
|
|
2406 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2407 GLYPH_CACHEL (w, HSCROLL_GLYPH_INDEX));
|
|
|
2408 }
|
|
|
2409 else
|
|
|
2410 {
|
|
|
2411 /* This duplicates code down below to add a newline to
|
|
|
2412 the end of an otherwise empty line.*/
|
|
|
2413 data.ch = '\n';
|
|
|
2414 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2415
|
|
|
2416 add_emchar_rune (&data);
|
|
|
2417 }
|
|
|
2418 }
|
|
|
2419
|
|
|
2420 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2421 }
|
|
|
2422
|
|
|
2423 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
2424 line. */
|
|
|
2425 else
|
|
|
2426 {
|
|
|
2427 struct glyph_block gb;
|
|
|
2428 struct glyph_cachel *cachel;
|
|
|
2429
|
|
|
2430 /* If the line is to be truncated then we actually have to look
|
|
|
2431 for the next newline. We also add the end-of-line glyph which
|
|
|
2432 we know will fit because we adjusted the right border before
|
|
|
2433 we starting laying out the line. */
|
|
|
2434 data.max_pixpos += end_glyph_width;
|
|
|
2435 data.findex = DEFAULT_INDEX;
|
|
|
2436 gb.extent = Qnil;
|
|
|
2437
|
|
|
2438 if (truncate_win)
|
|
|
2439 {
|
|
|
2440 Bytind bi_pos;
|
|
|
2441
|
|
|
2442 /* Now find the start of the next line. */
|
|
|
2443 bi_pos = bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2444
|
|
|
2445 /* If the cursor is past the truncation line then we
|
|
|
2446 make it appear on the truncation glyph. If we've hit
|
|
|
2447 the end of the buffer then we also make the cursor
|
|
110
|
2448 appear unless eob is immediately preceded by a
|
|
0
|
2449 newline. In that case the cursor should actually
|
|
|
2450 appear on the next line. */
|
|
183
|
2451 if (data.cursor_type == CURSOR_ON
|
|
0
|
2452 && data.bi_cursor_bufpos >= data.bi_bufpos
|
|
|
2453 && (data.bi_cursor_bufpos < bi_pos ||
|
|
|
2454 (bi_pos == BI_BUF_ZV (b)
|
|
|
2455 && (bi_pos == BI_BUF_BEGV (b)
|
|
|
2456 || (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_pos))
|
|
|
2457 != '\n')))))
|
|
|
2458 data.bi_cursor_bufpos = bi_pos;
|
|
|
2459 else
|
|
|
2460 data.cursor_type = NO_CURSOR;
|
|
|
2461
|
|
|
2462 data.bi_bufpos = bi_pos;
|
|
|
2463 gb.glyph = Vtruncation_glyph;
|
|
|
2464 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
2465 }
|
|
|
2466 else
|
|
|
2467 {
|
|
|
2468 /* The cursor can never be on the continuation glyph. */
|
|
|
2469 data.cursor_type = NO_CURSOR;
|
|
|
2470
|
|
|
2471 /* data.bi_bufpos is already at the start of the next line. */
|
|
|
2472
|
|
|
2473 gb.glyph = Vcontinuation_glyph;
|
|
|
2474 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
2475 }
|
|
|
2476
|
|
|
2477 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1, cachel);
|
|
|
2478
|
|
|
2479 if (truncate_win && data.bi_bufpos == BI_BUF_ZV (b)
|
|
|
2480 && BI_BUF_FETCH_CHAR (b, prev_bytind (b, BI_BUF_ZV (b))) != '\n')
|
|
|
2481 /* #### Damn this losing shit. */
|
|
|
2482 data.bi_bufpos++;
|
|
|
2483 }
|
|
|
2484 }
|
|
|
2485 else if ((active_minibuffer || !NILP (synch_minibuffers_value))
|
|
|
2486 && (!echo_area_active (f) || data.bi_bufpos == BI_BUF_ZV (b)))
|
|
|
2487 {
|
|
|
2488 /* We need to add a marker to the end of the line since there is no
|
|
|
2489 newline character in order for the cursor to get drawn. We label
|
|
|
2490 it as a newline so that it gets handled correctly by the
|
|
|
2491 whitespace routines below. */
|
|
|
2492
|
|
|
2493 data.ch = '\n';
|
|
|
2494 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2495 data.findex = DEFAULT_INDEX;
|
|
|
2496 data.start_col = 0;
|
|
|
2497 data.bi_start_col_enabled = 0;
|
|
|
2498
|
|
|
2499 data.max_pixpos += data.blank_width;
|
|
|
2500 add_emchar_rune (&data);
|
|
|
2501 data.max_pixpos -= data.blank_width;
|
|
183
|
2502
|
|
0
|
2503 /* #### urk! Chuck, this shit is bad news. Going around
|
|
|
2504 manipulating invalid positions is guaranteed to result in
|
|
|
2505 trouble sooner or later. */
|
|
|
2506 data.bi_bufpos = BI_BUF_ZV (b) + 1;
|
|
|
2507 }
|
|
|
2508
|
|
|
2509 /* Calculate left whitespace boundary. */
|
|
|
2510 {
|
|
|
2511 int elt = 0;
|
|
|
2512
|
|
|
2513 /* Whitespace past a newline is considered right whitespace. */
|
|
|
2514 while (elt < Dynarr_length (db->runes))
|
|
|
2515 {
|
|
|
2516 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2517
|
|
|
2518 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
2519 || rb->type == RUNE_BLANK)
|
|
|
2520 {
|
|
|
2521 dl->bounds.left_white += rb->width;
|
|
|
2522 elt++;
|
|
|
2523 }
|
|
|
2524 else
|
|
|
2525 elt = Dynarr_length (db->runes);
|
|
|
2526 }
|
|
|
2527 }
|
|
|
2528
|
|
|
2529 /* Calculate right whitespace boundary. */
|
|
|
2530 {
|
|
|
2531 int elt = Dynarr_length (db->runes) - 1;
|
|
|
2532 int done = 0;
|
|
|
2533
|
|
|
2534 while (!done && elt >= 0)
|
|
|
2535 {
|
|
|
2536 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2537
|
|
|
2538 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
2539 && isspace (rb->object.chr.ch))
|
|
|
2540 && !rb->type == RUNE_BLANK)
|
|
|
2541 {
|
|
|
2542 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
2543 done = 1;
|
|
|
2544 }
|
|
|
2545
|
|
|
2546 elt--;
|
|
|
2547
|
|
|
2548 }
|
|
|
2549
|
|
|
2550 /* The line is blank so everything is considered to be right
|
|
|
2551 whitespace. */
|
|
|
2552 if (!done)
|
|
|
2553 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
2554 }
|
|
|
2555
|
|
|
2556 /* Set the display blocks bounds. */
|
|
|
2557 db->start_pos = dl->bounds.left_in;
|
|
|
2558 if (Dynarr_length (db->runes))
|
|
|
2559 {
|
|
|
2560 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
2561
|
|
|
2562 db->end_pos = rb->xpos + rb->width;
|
|
|
2563 }
|
|
|
2564 else
|
|
|
2565 db->end_pos = dl->bounds.right_white;
|
|
|
2566
|
|
|
2567 /* update line height parameters */
|
|
|
2568 if (!data.new_ascent && !data.new_descent)
|
|
|
2569 {
|
|
|
2570 /* We've got a blank line so initialize these values from the default
|
|
|
2571 face. */
|
|
|
2572 default_face_font_info (data.window, &data.new_ascent,
|
|
|
2573 &data.new_descent, 0, 0, 0);
|
|
|
2574 }
|
|
|
2575
|
|
|
2576 if (data.max_pixmap_height)
|
|
|
2577 {
|
|
|
2578 int height = data.new_ascent + data.new_descent;
|
|
|
2579 int pix_ascent, pix_descent;
|
|
|
2580
|
|
|
2581 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2582 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2583
|
|
|
2584 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2585 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2586 }
|
|
|
2587
|
|
|
2588 dl->ascent = data.new_ascent;
|
|
|
2589 dl->descent = data.new_descent;
|
|
|
2590
|
|
|
2591 {
|
|
|
2592 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
2593
|
|
|
2594 if (dl->ascent < ascent)
|
|
|
2595 dl->ascent = ascent;
|
|
|
2596 }
|
|
|
2597 {
|
|
|
2598 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
2599
|
|
|
2600 if (dl->descent < descent)
|
|
|
2601 dl->descent = descent;
|
|
|
2602 }
|
|
|
2603
|
|
|
2604 dl->cursor_elt = data.cursor_x;
|
|
|
2605 /* #### lossage lossage lossage! Fix this shit! */
|
|
|
2606 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
2607 dl->end_bufpos = BUF_ZV (b);
|
|
|
2608 else
|
|
|
2609 dl->end_bufpos = bytind_to_bufpos (b, data.bi_bufpos) - 1;
|
|
|
2610 if (truncate_win)
|
|
|
2611 data.dl->num_chars = column_at_point (b, dl->end_bufpos, 0);
|
|
|
2612 else
|
|
|
2613 /* This doesn't correctly take into account tabs and control
|
|
|
2614 characters but if the window isn't being truncated then this
|
|
|
2615 value isn't going to end up being used anyhow. */
|
|
|
2616 data.dl->num_chars = dl->end_bufpos - dl->bufpos;
|
|
|
2617
|
|
|
2618 /* #### handle horizontally scrolled line with text none of which
|
|
|
2619 was actually laid out. */
|
|
|
2620
|
|
|
2621 /* #### handle any remainder of overlay arrow */
|
|
|
2622
|
|
|
2623 if (*prop == ADD_FAILED)
|
|
|
2624 *prop = NULL;
|
|
|
2625
|
|
|
2626 if (truncate_win && *prop)
|
|
|
2627 {
|
|
|
2628 Dynarr_free (*prop);
|
|
|
2629 *prop = NULL;
|
|
|
2630 }
|
|
|
2631
|
|
|
2632 extent_fragment_delete (data.ef);
|
|
|
2633
|
|
|
2634 /* #### If we started at EOB, then make sure we return a value past
|
|
|
2635 it so that regenerate_window will exit properly. This is bogus.
|
|
|
2636 The main loop should get fixed so that it isn't necessary to call
|
|
|
2637 this function if we are already at EOB. */
|
|
|
2638
|
|
|
2639 if (data.bi_bufpos == BI_BUF_ZV (b) && bi_start_pos == BI_BUF_ZV (b))
|
|
173
|
2640 return data.bi_bufpos + 1; /* Yuck! */
|
|
0
|
2641 else
|
|
|
2642 return data.bi_bufpos;
|
|
|
2643 }
|
|
|
2644
|
|
|
2645 /* Display the overlay arrow at the beginning of the given line. */
|
|
|
2646
|
|
|
2647 static int
|
|
|
2648 create_overlay_glyph_block (struct window *w, struct display_line *dl)
|
|
|
2649 {
|
|
|
2650 struct frame *f = XFRAME (w->frame);
|
|
|
2651 struct device *d = XDEVICE (f->device);
|
|
|
2652 pos_data data;
|
|
183
|
2653
|
|
0
|
2654 /* If Voverlay_arrow_string isn't valid then just fail silently. */
|
|
|
2655 if (!STRINGP (Voverlay_arrow_string) && !GLYPHP (Voverlay_arrow_string))
|
|
|
2656 return 0;
|
|
|
2657
|
|
|
2658 memset (&data, 0, sizeof (data));
|
|
|
2659 data.ef = NULL;
|
|
|
2660 data.d = d;
|
|
|
2661 XSETWINDOW (data.window, w);
|
|
|
2662 data.db = get_display_block_from_line (dl, OVERWRITE);
|
|
|
2663 data.dl = dl;
|
|
|
2664 data.pixpos = dl->bounds.left_in;
|
|
|
2665 data.max_pixpos = dl->bounds.right_in;
|
|
|
2666 data.cursor_type = NO_CURSOR;
|
|
|
2667 data.cursor_x = -1;
|
|
|
2668 data.findex = DEFAULT_INDEX;
|
|
|
2669 data.last_charset = Qunbound;
|
|
94
|
2670 data.last_findex = DEFAULT_INDEX;
|
|
0
|
2671 data.result_str = Qnil;
|
|
|
2672
|
|
|
2673 Dynarr_reset (data.db->runes);
|
|
|
2674
|
|
|
2675 if (STRINGP (Voverlay_arrow_string))
|
|
|
2676 {
|
|
|
2677 add_bufbyte_string_runes
|
|
|
2678 (&data,
|
|
16
|
2679 XSTRING_DATA (Voverlay_arrow_string),
|
|
|
2680 XSTRING_LENGTH (Voverlay_arrow_string),
|
|
0
|
2681 1);
|
|
|
2682 }
|
|
|
2683 else if (GLYPHP (Voverlay_arrow_string))
|
|
|
2684 {
|
|
|
2685 struct glyph_block gb;
|
|
|
2686
|
|
|
2687 gb.glyph = Voverlay_arrow_string;
|
|
|
2688 gb.extent = Qnil;
|
|
|
2689 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
2690 }
|
|
|
2691
|
|
|
2692 if (data.max_pixmap_height)
|
|
|
2693 {
|
|
|
2694 int height = data.new_ascent + data.new_descent;
|
|
|
2695 int pix_ascent, pix_descent;
|
|
|
2696
|
|
|
2697 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2698 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2699
|
|
|
2700 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2701 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2702 }
|
|
|
2703
|
|
|
2704 dl->ascent = data.new_ascent;
|
|
|
2705 dl->descent = data.new_descent;
|
|
|
2706
|
|
|
2707 data.db->start_pos = dl->bounds.left_in;
|
|
|
2708 data.db->end_pos = data.pixpos;
|
|
|
2709
|
|
173
|
2710 return data.pixpos - dl->bounds.left_in;
|
|
0
|
2711 }
|
|
|
2712
|
|
|
2713 /* Add a type of glyph to a margin display block. */
|
|
|
2714
|
|
|
2715 static int
|
|
|
2716 add_margin_runes (struct display_line *dl, struct display_block *db, int start,
|
|
|
2717 int count, int glyph_type, int side, Lisp_Object window)
|
|
|
2718 {
|
|
|
2719 glyph_block_dynarr *gbd = (side == LEFT_GLYPHS
|
|
|
2720 ? dl->left_glyphs
|
|
|
2721 : dl->right_glyphs);
|
|
|
2722 int elt, end;
|
|
|
2723 int xpos = start;
|
|
|
2724 int reverse;
|
|
|
2725
|
|
|
2726 if ((glyph_type == GL_WHITESPACE && side == LEFT_GLYPHS)
|
|
|
2727 || (glyph_type == GL_INSIDE_MARGIN && side == RIGHT_GLYPHS))
|
|
|
2728 {
|
|
|
2729 reverse = 1;
|
|
|
2730 elt = Dynarr_length (gbd) - 1;
|
|
|
2731 end = 0;
|
|
|
2732 }
|
|
|
2733 else
|
|
|
2734 {
|
|
|
2735 reverse = 0;
|
|
|
2736 elt = 0;
|
|
|
2737 end = Dynarr_length (gbd);
|
|
|
2738 }
|
|
|
2739
|
|
|
2740 while (count && ((!reverse && elt < end) || (reverse && elt >= end)))
|
|
|
2741 {
|
|
|
2742 struct glyph_block *gb = Dynarr_atp (gbd, elt);
|
|
|
2743
|
|
|
2744 if (NILP (gb->extent))
|
|
|
2745 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2746
|
|
|
2747 if (gb->active &&
|
|
|
2748 ((side == LEFT_GLYPHS &&
|
|
|
2749 extent_begin_glyph_layout (XEXTENT (gb->extent)) == glyph_type)
|
|
|
2750 || (side == RIGHT_GLYPHS &&
|
|
|
2751 extent_end_glyph_layout (XEXTENT (gb->extent)) == glyph_type)))
|
|
|
2752 {
|
|
|
2753 struct rune rb;
|
|
|
2754
|
|
|
2755 rb.width = gb->width;
|
|
|
2756 rb.findex = gb->findex;
|
|
|
2757 rb.xpos = xpos;
|
|
|
2758 rb.bufpos = -1;
|
|
|
2759 rb.endpos = 0;
|
|
|
2760 rb.type = RUNE_DGLYPH;
|
|
|
2761 rb.object.dglyph.glyph = gb->glyph;
|
|
|
2762 rb.object.dglyph.extent = gb->extent;
|
|
|
2763 rb.object.dglyph.xoffset = 0;
|
|
|
2764 rb.cursor_type = CURSOR_OFF;
|
|
|
2765
|
|
|
2766 Dynarr_add (db->runes, rb);
|
|
|
2767 xpos += rb.width;
|
|
|
2768 count--;
|
|
|
2769 gb->active = 0;
|
|
|
2770
|
|
|
2771 if (glyph_contrib_p (gb->glyph, window))
|
|
|
2772 {
|
|
|
2773 unsigned short ascent, descent;
|
|
|
2774 Lisp_Object baseline = glyph_baseline (gb->glyph, window);
|
|
|
2775
|
|
|
2776 ascent = glyph_ascent (gb->glyph, Qnil, gb->findex, window);
|
|
|
2777 descent = glyph_descent (gb->glyph, Qnil, gb->findex, window);
|
|
|
2778
|
|
|
2779 /* A pixmap that has not had a baseline explicitly set.
|
|
|
2780 We use the existing ascent / descent ratio of the
|
|
|
2781 line. */
|
|
|
2782 if (NILP (baseline))
|
|
|
2783 {
|
|
|
2784 int gheight = ascent + descent;
|
|
|
2785 int line_height = dl->ascent + dl->descent;
|
|
|
2786 int pix_ascent, pix_descent;
|
|
|
2787
|
|
|
2788 pix_descent = (int) (gheight * dl->descent) / line_height;
|
|
|
2789 pix_ascent = gheight - pix_descent;
|
|
|
2790
|
|
|
2791 dl->ascent = max ((int) dl->ascent, pix_ascent);
|
|
|
2792 dl->descent = max ((int) dl->descent, pix_descent);
|
|
|
2793 }
|
|
|
2794
|
|
|
2795 /* A string so determine contribution normally. */
|
|
|
2796 else if (EQ (baseline, Qt))
|
|
|
2797 {
|
|
|
2798 dl->ascent = max (dl->ascent, ascent);
|
|
|
2799 dl->descent = max (dl->descent, descent);
|
|
|
2800 }
|
|
|
2801
|
|
|
2802 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
2803 contribution here. */
|
|
|
2804 else if (INTP (baseline))
|
|
|
2805 {
|
|
|
2806 int height = ascent + descent;
|
|
|
2807 int pix_ascent, pix_descent;
|
|
|
2808
|
|
|
2809 pix_ascent = height * XINT (baseline) / 100;
|
|
|
2810 pix_descent = height - pix_ascent;
|
|
|
2811
|
|
|
2812 dl->ascent = max ((int) dl->ascent, pix_ascent);
|
|
|
2813 dl->descent = max ((int) dl->descent, pix_descent);
|
|
|
2814 }
|
|
|
2815
|
|
|
2816 /* Otherwise something is screwed up. */
|
|
|
2817 else
|
|
|
2818 abort ();
|
|
|
2819 }
|
|
|
2820 }
|
|
|
2821
|
|
|
2822 (reverse ? elt-- : elt++);
|
|
|
2823 }
|
|
|
2824
|
|
|
2825 return xpos;
|
|
|
2826 }
|
|
|
2827
|
|
|
2828 /* Add a blank to a margin display block. */
|
|
|
2829
|
|
|
2830 static void
|
|
|
2831 add_margin_blank (struct display_line *dl, struct display_block *db,
|
|
|
2832 struct window *w, int xpos, int width, int side)
|
|
|
2833 {
|
|
|
2834 struct rune rb;
|
|
|
2835
|
|
|
2836 rb.findex = (side == LEFT_GLYPHS
|
|
|
2837 ? get_builtin_face_cache_index (w, Vleft_margin_face)
|
|
|
2838 : get_builtin_face_cache_index (w, Vright_margin_face));
|
|
|
2839 rb.xpos = xpos;
|
|
|
2840 rb.width = width;
|
|
|
2841 rb.bufpos = -1;
|
|
|
2842 rb.endpos = 0;
|
|
|
2843 rb.type = RUNE_BLANK;
|
|
|
2844 rb.cursor_type = CURSOR_OFF;
|
|
|
2845
|
|
|
2846 Dynarr_add (db->runes, rb);
|
|
|
2847 }
|
|
|
2848
|
|
|
2849 /* Display glyphs in the left outside margin, left inside margin and
|
|
|
2850 left whitespace area. */
|
|
|
2851
|
|
|
2852 static void
|
|
|
2853 create_left_glyph_block (struct window *w, struct display_line *dl,
|
|
|
2854 int overlay_width)
|
|
|
2855 {
|
|
|
2856 Lisp_Object window;
|
|
|
2857
|
|
|
2858 int use_overflow = (NILP (w->use_left_overflow) ? 0 : 1);
|
|
|
2859 int elt, end_xpos;
|
|
|
2860 int out_end, in_out_start, in_in_end, white_out_start, white_in_start;
|
|
|
2861 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
2862 int left_in_start = dl->bounds.left_in;
|
|
|
2863 int left_in_end = dl->bounds.left_in + overlay_width;
|
|
|
2864
|
|
|
2865 struct display_block *odb, *idb;
|
|
|
2866
|
|
|
2867 XSETWINDOW (window, w);
|
|
|
2868
|
|
|
2869 /* We have to add the glyphs to the line in the order outside,
|
|
|
2870 inside, whitespace. However the precedence dictates that we
|
|
|
2871 determine how many will fit in the reverse order. */
|
|
|
2872
|
|
|
2873 /* Determine how many whitespace glyphs we can display and where
|
|
|
2874 they should start. */
|
|
|
2875 white_in_start = dl->bounds.left_white;
|
|
|
2876 white_out_start = left_in_start;
|
|
|
2877 white_out_cnt = white_in_cnt = 0;
|
|
|
2878 elt = 0;
|
|
|
2879
|
|
|
2880 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2881 {
|
|
|
2882 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2883
|
|
|
2884 if (NILP (gb->extent))
|
|
|
2885 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2886
|
|
|
2887 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
2888 {
|
|
|
2889 int width;
|
|
|
2890
|
|
|
2891 width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
2892
|
|
|
2893 if (white_in_start - width >= left_in_end)
|
|
|
2894 {
|
|
|
2895 white_in_cnt++;
|
|
|
2896 white_in_start -= width;
|
|
|
2897 gb->width = width;
|
|
|
2898 gb->active = 1;
|
|
|
2899 }
|
|
|
2900 else if (use_overflow
|
|
|
2901 && (white_out_start - width > dl->bounds.left_out))
|
|
|
2902 {
|
|
|
2903 white_out_cnt++;
|
|
|
2904 white_out_start -= width;
|
|
|
2905 gb->width = width;
|
|
|
2906 gb->active = 1;
|
|
|
2907 }
|
|
|
2908 else
|
|
|
2909 gb->active = 0;
|
|
|
2910 }
|
|
|
2911
|
|
|
2912 elt++;
|
|
|
2913 }
|
|
|
2914
|
|
|
2915 /* Determine how many inside margin glyphs we can display and where
|
|
|
2916 they should start. The inside margin glyphs get whatever space
|
|
|
2917 is left after the whitespace glyphs have been displayed. These
|
|
|
2918 are tricky to calculate since if we decide to use the overflow
|
|
|
2919 area we basicaly have to start over. So for these we build up a
|
|
|
2920 list of just the inside margin glyphs and manipulate it to
|
|
|
2921 determine the needed info. */
|
|
|
2922 {
|
|
|
2923 glyph_block_dynarr *ib;
|
|
|
2924 int avail_in, avail_out;
|
|
|
2925 int done = 0;
|
|
|
2926 int marker = 0;
|
|
|
2927 int used_in, used_out;
|
|
|
2928
|
|
|
2929 elt = 0;
|
|
|
2930 used_in = used_out = 0;
|
|
185
|
2931 ib = Dynarr_new (glyph_block);
|
|
0
|
2932 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2933 {
|
|
|
2934 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2935
|
|
|
2936 if (NILP (gb->extent))
|
|
|
2937 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2938
|
|
|
2939 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
2940 GL_INSIDE_MARGIN)
|
|
|
2941 {
|
|
|
2942 gb->width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
2943 used_in += gb->width;
|
|
|
2944 Dynarr_add (ib, *gb);
|
|
|
2945 }
|
|
|
2946
|
|
|
2947 elt++;
|
|
|
2948 }
|
|
|
2949
|
|
|
2950 if (white_out_cnt)
|
|
|
2951 avail_in = 0;
|
|
|
2952 else
|
|
|
2953 {
|
|
|
2954 avail_in = white_in_start - left_in_end;
|
|
|
2955 if (avail_in < 0)
|
|
|
2956 avail_in = 0;
|
|
|
2957 }
|
|
|
2958
|
|
|
2959 if (!use_overflow)
|
|
|
2960 avail_out = 0;
|
|
|
2961 else
|
|
|
2962 avail_out = white_out_start - dl->bounds.left_out;
|
|
|
2963
|
|
|
2964 marker = 0;
|
|
|
2965 while (!done && marker < Dynarr_length (ib))
|
|
|
2966 {
|
|
|
2967 int width = Dynarr_atp (ib, marker)->width;
|
|
|
2968
|
|
|
2969 /* If everything now fits in the available inside margin
|
|
|
2970 space, we're done. */
|
|
|
2971 if (used_in <= avail_in)
|
|
|
2972 done = 1;
|
|
|
2973 else
|
|
|
2974 {
|
|
|
2975 /* Otherwise see if we have room to move a glyph to the
|
|
|
2976 outside. */
|
|
|
2977 if (used_out + width <= avail_out)
|
|
|
2978 {
|
|
|
2979 used_out += width;
|
|
|
2980 used_in -= width;
|
|
|
2981 }
|
|
|
2982 else
|
|
|
2983 done = 1;
|
|
|
2984 }
|
|
|
2985
|
|
|
2986 if (!done)
|
|
|
2987 marker++;
|
|
|
2988 }
|
|
|
2989
|
|
|
2990 /* At this point we now know that everything from marker on goes in
|
|
|
2991 the inside margin and everything before it goes in the outside
|
|
|
2992 margin. The stuff going into the outside margin is guaranteed
|
|
|
2993 to fit, but we may have to trim some stuff from the inside. */
|
|
|
2994
|
|
|
2995 in_in_end = left_in_end;
|
|
|
2996 in_out_start = white_out_start;
|
|
|
2997 in_out_cnt = in_in_cnt = 0;
|
|
|
2998
|
|
|
2999 Dynarr_free (ib);
|
|
|
3000 elt = 0;
|
|
|
3001 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3002 {
|
|
|
3003 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3004
|
|
|
3005 if (NILP (gb->extent))
|
|
|
3006 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3007
|
|
|
3008 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3009 GL_INSIDE_MARGIN)
|
|
|
3010 {
|
|
|
3011 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
3012
|
|
|
3013 if (used_out)
|
|
|
3014 {
|
|
|
3015 in_out_cnt++;
|
|
|
3016 in_out_start -= width;
|
|
|
3017 gb->width = width;
|
|
|
3018 gb->active = 1;
|
|
|
3019 used_out -= width;
|
|
|
3020 }
|
|
|
3021 else if (in_in_end + width < white_in_start)
|
|
|
3022 {
|
|
|
3023 in_in_cnt++;
|
|
|
3024 in_in_end += width;
|
|
|
3025 gb->width = width;
|
|
|
3026 gb->active = 1;
|
|
|
3027 }
|
|
|
3028 else
|
|
|
3029 gb->active = 0;
|
|
|
3030 }
|
|
|
3031
|
|
|
3032 elt++;
|
|
|
3033 }
|
|
|
3034 }
|
|
|
3035
|
|
|
3036 /* Determine how many outside margin glyphs we can display. They
|
|
|
3037 always start at the left outside margin and can only use the
|
|
|
3038 outside margin space. */
|
|
|
3039 out_end = dl->bounds.left_out;
|
|
|
3040 out_cnt = 0;
|
|
|
3041 elt = 0;
|
|
|
3042
|
|
|
3043 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3044 {
|
|
|
3045 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3046
|
|
|
3047 if (NILP (gb->extent))
|
|
|
3048 abort (); /* these should have beeb handled in add_glyph_rune */
|
|
|
3049
|
|
|
3050 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3051 GL_OUTSIDE_MARGIN)
|
|
|
3052 {
|
|
|
3053 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
3054
|
|
|
3055 if (out_end + width <= in_out_start)
|
|
|
3056 {
|
|
|
3057 out_cnt++;
|
|
|
3058 out_end += width;
|
|
|
3059 gb->width = width;
|
|
|
3060 gb->active = 1;
|
|
|
3061 }
|
|
|
3062 else
|
|
|
3063 gb->active = 0;
|
|
|
3064 }
|
|
|
3065
|
|
|
3066 elt++;
|
|
|
3067 }
|
|
|
3068
|
|
183
|
3069 /* Now that we know where everything goes, we add the glyphs as
|
|
|
3070 runes to the appropriate display blocks. */
|
|
0
|
3071 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3072 {
|
|
|
3073 odb = get_display_block_from_line (dl, LEFT_OUTSIDE_MARGIN);
|
|
|
3074 odb->start_pos = dl->bounds.left_out;
|
|
|
3075 /* #### We should stop adding a blank to account for the space
|
|
|
3076 between the end of the glyphs and the margin and instead set
|
|
|
3077 this accordingly. */
|
|
|
3078 odb->end_pos = dl->bounds.left_in;
|
|
|
3079 Dynarr_reset (odb->runes);
|
|
|
3080 }
|
|
|
3081 else
|
|
|
3082 odb = 0;
|
|
|
3083
|
|
|
3084 if (in_in_cnt || white_in_cnt)
|
|
|
3085 {
|
|
|
3086 idb = get_display_block_from_line (dl, LEFT_INSIDE_MARGIN);
|
|
|
3087 idb->start_pos = dl->bounds.left_in;
|
|
|
3088 /* #### See above comment for odb->end_pos */
|
|
|
3089 idb->end_pos = dl->bounds.left_white;
|
|
|
3090 Dynarr_reset (idb->runes);
|
|
|
3091 }
|
|
|
3092 else
|
|
|
3093 idb = 0;
|
|
|
3094
|
|
|
3095 /* First add the outside margin glyphs. */
|
|
|
3096 if (out_cnt)
|
|
|
3097 end_xpos = add_margin_runes (dl, odb, dl->bounds.left_out, out_cnt,
|
|
|
3098 GL_OUTSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3099 else
|
|
|
3100 end_xpos = dl->bounds.left_out;
|
|
|
3101
|
|
|
3102 /* There may be blank space between the outside margin glyphs and
|
|
|
3103 the inside margin glyphs. If so, add a blank. */
|
|
|
3104 if (in_out_cnt && (in_out_start - end_xpos))
|
|
|
3105 {
|
|
|
3106 add_margin_blank (dl, odb, w, end_xpos, in_out_start - end_xpos,
|
|
|
3107 LEFT_GLYPHS);
|
|
|
3108 }
|
|
|
3109
|
|
|
3110 /* Next add the inside margin glyphs which are actually in the
|
|
|
3111 outside margin. */
|
|
|
3112 if (in_out_cnt)
|
|
|
3113 {
|
|
|
3114 end_xpos = add_margin_runes (dl, odb, in_out_start, in_out_cnt,
|
|
|
3115 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3116 }
|
|
|
3117
|
|
|
3118 /* If we didn't add any inside margin glyphs to the outside margin,
|
|
|
3119 but are adding whitespace glyphs, then we need to add a blank
|
|
|
3120 here. */
|
|
|
3121 if (!in_out_cnt && white_out_cnt && (white_out_start - end_xpos))
|
|
|
3122 {
|
|
|
3123 add_margin_blank (dl, odb, w, end_xpos, white_out_start - end_xpos,
|
|
|
3124 LEFT_GLYPHS);
|
|
|
3125 }
|
|
|
3126
|
|
|
3127 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3128 outside margin. */
|
|
|
3129 if (white_out_cnt)
|
|
|
3130 {
|
|
|
3131 end_xpos = add_margin_runes (dl, odb, white_out_start, white_out_cnt,
|
|
|
3132 GL_WHITESPACE, LEFT_GLYPHS, window);
|
|
|
3133 }
|
|
|
3134
|
|
|
3135 /* We take care of clearing between the end of the glyphs and the
|
|
|
3136 start of the inside margin for lines which have glyphs. */
|
|
|
3137 if (odb && (left_in_start - end_xpos))
|
|
|
3138 {
|
|
|
3139 add_margin_blank (dl, odb, w, end_xpos, left_in_start - end_xpos,
|
|
|
3140 LEFT_GLYPHS);
|
|
|
3141 }
|
|
|
3142
|
|
|
3143 /* Next add the inside margin glyphs which are actually in the
|
|
|
3144 inside margin. */
|
|
|
3145 if (in_in_cnt)
|
|
|
3146 {
|
|
|
3147 end_xpos = add_margin_runes (dl, idb, left_in_end, in_in_cnt,
|
|
|
3148 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3149 }
|
|
|
3150 else
|
|
|
3151 end_xpos = left_in_end;
|
|
|
3152
|
|
|
3153 /* Make sure that the area between the end of the inside margin
|
|
|
3154 glyphs and the whitespace glyphs is cleared. */
|
|
|
3155 if (idb && (white_in_start - end_xpos > 0))
|
|
|
3156 {
|
|
|
3157 add_margin_blank (dl, idb, w, end_xpos, white_in_start - end_xpos,
|
|
|
3158 LEFT_GLYPHS);
|
|
|
3159 }
|
|
|
3160
|
|
|
3161 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3162 inside margin. */
|
|
|
3163 if (white_in_cnt)
|
|
|
3164 {
|
|
|
3165 add_margin_runes (dl, idb, white_in_start, white_in_cnt, GL_WHITESPACE,
|
|
|
3166 LEFT_GLYPHS, window);
|
|
|
3167 }
|
|
|
3168
|
|
|
3169 /* Whitespace glyphs always end right next to the text block so
|
|
|
3170 there is nothing we have to make sure is cleared after them. */
|
|
|
3171 }
|
|
|
3172
|
|
|
3173 /* Display glyphs in the right outside margin, right inside margin and
|
|
|
3174 right whitespace area. */
|
|
|
3175
|
|
|
3176 static void
|
|
|
3177 create_right_glyph_block (struct window *w, struct display_line *dl)
|
|
|
3178 {
|
|
|
3179 Lisp_Object window;
|
|
|
3180
|
|
|
3181 int use_overflow = (NILP (w->use_right_overflow) ? 0 : 1);
|
|
|
3182 int elt, end_xpos;
|
|
|
3183 int out_start, in_out_end, in_in_start, white_out_end, white_in_end;
|
|
|
3184 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
3185
|
|
|
3186 struct display_block *odb, *idb;
|
|
|
3187
|
|
|
3188 XSETWINDOW (window, w);
|
|
|
3189
|
|
|
3190 /* We have to add the glyphs to the line in the order outside,
|
|
|
3191 inside, whitespace. However the precedence dictates that we
|
|
|
3192 determine how many will fit in the reverse order. */
|
|
|
3193
|
|
|
3194 /* Determine how many whitespace glyphs we can display and where
|
|
|
3195 they should start. */
|
|
|
3196 white_in_end = dl->bounds.right_white;
|
|
|
3197 white_out_end = dl->bounds.right_in;
|
|
|
3198 white_out_cnt = white_in_cnt = 0;
|
|
|
3199 elt = 0;
|
|
|
3200
|
|
|
3201 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3202 {
|
|
|
3203 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3204
|
|
|
3205 if (NILP (gb->extent))
|
|
|
3206 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3207
|
|
|
3208 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
3209 {
|
|
|
3210 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
3211
|
|
|
3212 if (white_in_end + width <= dl->bounds.right_in)
|
|
|
3213 {
|
|
|
3214 white_in_cnt++;
|
|
|
3215 white_in_end += width;
|
|
|
3216 gb->width = width;
|
|
|
3217 gb->active = 1;
|
|
|
3218 }
|
|
|
3219 else if (use_overflow
|
|
|
3220 && (white_out_end + width <= dl->bounds.right_out))
|
|
|
3221 {
|
|
|
3222 white_out_cnt++;
|
|
|
3223 white_out_end += width;
|
|
|
3224 gb->width = width;
|
|
|
3225 gb->active = 1;
|
|
|
3226 }
|
|
|
3227 else
|
|
|
3228 gb->active = 0;
|
|
|
3229 }
|
|
|
3230
|
|
|
3231 elt++;
|
|
|
3232 }
|
|
|
3233
|
|
|
3234 /* Determine how many inside margin glyphs we can display and where
|
|
|
3235 they should start. The inside margin glyphs get whatever space
|
|
|
3236 is left after the whitespace glyphs have been displayed. These
|
|
|
3237 are tricky to calculate since if we decide to use the overflow
|
|
|
3238 area we basicaly have to start over. So for these we build up a
|
|
|
3239 list of just the inside margin glyphs and manipulate it to
|
|
|
3240 determine the needed info. */
|
|
|
3241 {
|
|
|
3242 glyph_block_dynarr *ib;
|
|
|
3243 int avail_in, avail_out;
|
|
|
3244 int done = 0;
|
|
|
3245 int marker = 0;
|
|
|
3246 int used_in, used_out;
|
|
|
3247
|
|
|
3248 elt = 0;
|
|
|
3249 used_in = used_out = 0;
|
|
185
|
3250 ib = Dynarr_new (glyph_block);
|
|
0
|
3251 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3252 {
|
|
|
3253 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3254
|
|
|
3255 if (NILP (gb->extent))
|
|
|
3256 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3257
|
|
|
3258 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3259 {
|
|
|
3260 gb->width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
3261 used_in += gb->width;
|
|
|
3262 Dynarr_add (ib, *gb);
|
|
|
3263 }
|
|
|
3264
|
|
|
3265 elt++;
|
|
|
3266 }
|
|
|
3267
|
|
|
3268 if (white_out_cnt)
|
|
|
3269 avail_in = 0;
|
|
|
3270 else
|
|
|
3271 avail_in = dl->bounds.right_in - white_in_end;
|
|
|
3272
|
|
|
3273 if (!use_overflow)
|
|
|
3274 avail_out = 0;
|
|
|
3275 else
|
|
|
3276 avail_out = dl->bounds.right_out - white_out_end;
|
|
|
3277
|
|
|
3278 marker = 0;
|
|
|
3279 while (!done && marker < Dynarr_length (ib))
|
|
|
3280 {
|
|
|
3281 int width = Dynarr_atp (ib, marker)->width;
|
|
|
3282
|
|
|
3283 /* If everything now fits in the available inside margin
|
|
|
3284 space, we're done. */
|
|
|
3285 if (used_in <= avail_in)
|
|
|
3286 done = 1;
|
|
|
3287 else
|
|
|
3288 {
|
|
|
3289 /* Otherwise see if we have room to move a glyph to the
|
|
|
3290 outside. */
|
|
|
3291 if (used_out + width <= avail_out)
|
|
|
3292 {
|
|
|
3293 used_out += width;
|
|
|
3294 used_in -= width;
|
|
|
3295 }
|
|
|
3296 else
|
|
|
3297 done = 1;
|
|
|
3298 }
|
|
|
3299
|
|
|
3300 if (!done)
|
|
|
3301 marker++;
|
|
|
3302 }
|
|
|
3303
|
|
|
3304 /* At this point we now know that everything from marker on goes in
|
|
|
3305 the inside margin and everything before it goes in the outside
|
|
|
3306 margin. The stuff going into the outside margin is guaranteed
|
|
|
3307 to fit, but we may have to trim some stuff from the inside. */
|
|
|
3308
|
|
|
3309 in_in_start = dl->bounds.right_in;
|
|
|
3310 in_out_end = dl->bounds.right_in;
|
|
|
3311 in_out_cnt = in_in_cnt = 0;
|
|
|
3312
|
|
|
3313 Dynarr_free (ib);
|
|
|
3314 elt = 0;
|
|
|
3315 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3316 {
|
|
|
3317 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3318
|
|
|
3319 if (NILP (gb->extent))
|
|
|
3320 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3321
|
|
|
3322 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3323 {
|
|
|
3324 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
3325
|
|
|
3326 if (used_out)
|
|
|
3327 {
|
|
|
3328 in_out_cnt++;
|
|
|
3329 in_out_end += width;
|
|
|
3330 gb->width = width;
|
|
|
3331 gb->active = 1;
|
|
|
3332 used_out -= width;
|
|
|
3333 }
|
|
|
3334 else if (in_in_start - width >= white_in_end)
|
|
|
3335 {
|
|
|
3336 in_in_cnt++;
|
|
|
3337 in_in_start -= width;
|
|
|
3338 gb->width = width;
|
|
|
3339 gb->active = 1;
|
|
|
3340 }
|
|
|
3341 else
|
|
|
3342 gb->active = 0;
|
|
|
3343 }
|
|
|
3344
|
|
|
3345 elt++;
|
|
|
3346 }
|
|
|
3347 }
|
|
|
3348
|
|
|
3349 /* Determine how many outside margin glyphs we can display. They
|
|
|
3350 always start at the right outside margin and can only use the
|
|
|
3351 outside margin space. */
|
|
|
3352 out_start = dl->bounds.right_out;
|
|
|
3353 out_cnt = 0;
|
|
|
3354 elt = 0;
|
|
|
3355
|
|
|
3356 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3357 {
|
|
|
3358 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3359
|
|
|
3360 if (NILP (gb->extent))
|
|
|
3361 abort (); /* these should have beeb handled in add_glyph_rune */
|
|
|
3362
|
|
|
3363 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_OUTSIDE_MARGIN)
|
|
|
3364 {
|
|
|
3365 int width = glyph_width (gb->glyph, Qnil, gb->findex, window);
|
|
|
3366
|
|
|
3367 if (out_start - width >= in_out_end)
|
|
|
3368 {
|
|
|
3369 out_cnt++;
|
|
|
3370 out_start -= width;
|
|
|
3371 gb->width = width;
|
|
|
3372 gb->active = 1;
|
|
|
3373 }
|
|
|
3374 else
|
|
|
3375 gb->active = 0;
|
|
|
3376 }
|
|
|
3377
|
|
|
3378 elt++;
|
|
|
3379 }
|
|
|
3380
|
|
|
3381 /* Now that we now where everything goes, we add the glyphs as runes
|
|
|
3382 to the appropriate display blocks. */
|
|
|
3383 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3384 {
|
|
|
3385 odb = get_display_block_from_line (dl, RIGHT_OUTSIDE_MARGIN);
|
|
|
3386 /* #### See comments before odb->start_pos init in
|
|
|
3387 create_left_glyph_block */
|
|
|
3388 odb->start_pos = dl->bounds.right_in;
|
|
|
3389 odb->end_pos = dl->bounds.right_out;
|
|
|
3390 Dynarr_reset (odb->runes);
|
|
|
3391 }
|
|
|
3392 else
|
|
|
3393 odb = 0;
|
|
|
3394
|
|
|
3395 if (in_in_cnt || white_in_cnt)
|
|
|
3396 {
|
|
|
3397 idb = get_display_block_from_line (dl, RIGHT_INSIDE_MARGIN);
|
|
|
3398 idb->start_pos = dl->bounds.right_white;
|
|
|
3399 /* #### See comments before odb->start_pos init in
|
|
|
3400 create_left_glyph_block */
|
|
|
3401 idb->end_pos = dl->bounds.right_in;
|
|
|
3402 Dynarr_reset (idb->runes);
|
|
|
3403 }
|
|
|
3404 else
|
|
|
3405 idb = 0;
|
|
|
3406
|
|
|
3407 /* First add the whitespace margin glyphs which are actually in the
|
|
|
3408 inside margin. */
|
|
|
3409 if (white_in_cnt)
|
|
|
3410 {
|
|
|
3411 end_xpos = add_margin_runes (dl, idb, dl->bounds.right_white,
|
|
|
3412 white_in_cnt, GL_WHITESPACE, RIGHT_GLYPHS,
|
|
|
3413 window);
|
|
|
3414 }
|
|
|
3415 else
|
|
|
3416 end_xpos = dl->bounds.right_white;
|
|
|
3417
|
|
|
3418 /* Make sure that the area between the end of the whitespace glyphs
|
|
|
3419 and the inside margin glyphs is cleared. */
|
|
|
3420 if (in_in_cnt && (in_in_start - end_xpos))
|
|
|
3421 {
|
|
|
3422 add_margin_blank (dl, idb, w, end_xpos, in_in_start - end_xpos,
|
|
|
3423 RIGHT_GLYPHS);
|
|
|
3424 }
|
|
|
3425
|
|
|
3426 /* Next add the inside margin glyphs which are actually in the
|
|
|
3427 inside margin. */
|
|
|
3428 if (in_in_cnt)
|
|
|
3429 {
|
|
|
3430 end_xpos = add_margin_runes (dl, idb, in_in_start, in_in_cnt,
|
|
|
3431 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3432 }
|
|
|
3433
|
|
|
3434 /* If we didn't add any inside margin glyphs then make sure the rest
|
|
|
3435 of the inside margin area gets cleared. */
|
|
|
3436 if (idb && (dl->bounds.right_in - end_xpos))
|
|
|
3437 {
|
|
|
3438 add_margin_blank (dl, idb, w, end_xpos, dl->bounds.right_in - end_xpos,
|
|
|
3439 RIGHT_GLYPHS);
|
|
|
3440 }
|
|
|
3441
|
|
|
3442 /* Next add any whitespace glyphs in the outside margin. */
|
|
|
3443 if (white_out_cnt)
|
|
|
3444 {
|
|
|
3445 end_xpos = add_margin_runes (dl, odb, dl->bounds.right_in, white_out_cnt,
|
|
|
3446 GL_WHITESPACE, RIGHT_GLYPHS, window);
|
|
|
3447 }
|
|
|
3448 else
|
|
|
3449 end_xpos = dl->bounds.right_in;
|
|
|
3450
|
|
|
3451 /* Next add any inside margin glyphs in the outside margin. */
|
|
|
3452 if (in_out_cnt)
|
|
|
3453 {
|
|
|
3454 end_xpos = add_margin_runes (dl, odb, end_xpos, in_out_cnt,
|
|
|
3455 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3456 }
|
|
|
3457
|
|
|
3458 /* There may be space between any whitespace or inside margin glyphs
|
|
|
3459 in the outside margin and the actual outside margin glyphs. */
|
|
|
3460 if (odb && (out_start - end_xpos))
|
|
|
3461 {
|
|
|
3462 add_margin_blank (dl, odb, w, end_xpos, out_start - end_xpos,
|
|
|
3463 RIGHT_GLYPHS);
|
|
|
3464 }
|
|
|
3465
|
|
|
3466 /* Finally, add the outside margin glyphs. */
|
|
|
3467 if (out_cnt)
|
|
|
3468 {
|
|
|
3469 add_margin_runes (dl, odb, out_start, out_cnt, GL_OUTSIDE_MARGIN,
|
|
|
3470 RIGHT_GLYPHS, window);
|
|
|
3471 }
|
|
|
3472 }
|
|
|
3473
|
|
|
3474
|
|
|
3475 /***************************************************************************/
|
|
|
3476 /* */
|
|
|
3477 /* modeline routines */
|
|
|
3478 /* */
|
|
|
3479 /***************************************************************************/
|
|
|
3480
|
|
|
3481 /* Ensure that the given display line DL accurately represents the
|
|
|
3482 modeline for the given window. */
|
|
|
3483
|
|
|
3484 static void
|
|
|
3485 generate_modeline (struct window *w, struct display_line *dl, int type)
|
|
|
3486 {
|
|
|
3487 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3488 struct frame *f = XFRAME (w->frame);
|
|
|
3489 struct device *d = XDEVICE (f->device);
|
|
|
3490
|
|
|
3491 /* Unlike display line and rune pointers, this one can't change underneath
|
|
|
3492 our feet. */
|
|
|
3493 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
3494 int max_pixpos, min_pixpos, ypos_adj;
|
|
|
3495 Lisp_Object font_inst;
|
|
|
3496
|
|
|
3497 /* This will actually determine incorrect inside boundaries for the
|
|
|
3498 modeline since it ignores the margins. However being aware of this fact
|
|
|
3499 we never use those values anywhere so it doesn't matter. */
|
|
|
3500 dl->bounds = calculate_display_line_boundaries (w, 1);
|
|
|
3501
|
|
|
3502 /* We are generating a modeline. */
|
|
|
3503 dl->modeline = 1;
|
|
|
3504 dl->cursor_elt = -1;
|
|
|
3505
|
|
|
3506 /* Reset the runes on the modeline. */
|
|
|
3507 Dynarr_reset (db->runes);
|
|
|
3508
|
|
|
3509 if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
3510 {
|
|
|
3511 struct rune rb;
|
|
|
3512
|
|
|
3513 /* If there is a horizontal scrollbar, don't add anything. */
|
|
|
3514 if (window_scrollbar_height (w))
|
|
|
3515 return;
|
|
|
3516
|
|
|
3517 dl->ascent = DEVMETH (d, divider_height, ());
|
|
|
3518 dl->descent = 0;
|
|
|
3519 /* The modeline is at the bottom of the gutters. */
|
|
|
3520 dl->ypos = WINDOW_BOTTOM (w);
|
|
|
3521
|
|
|
3522 rb.findex = MODELINE_INDEX;
|
|
|
3523 rb.xpos = dl->bounds.left_out;
|
|
|
3524 rb.width = dl->bounds.right_out - dl->bounds.left_out;
|
|
|
3525 rb.bufpos = 0;
|
|
|
3526 rb.endpos = 0;
|
|
|
3527 rb.type = RUNE_HLINE;
|
|
|
3528 rb.object.hline.thickness = 1;
|
|
|
3529 rb.object.hline.yoffset = 0;
|
|
|
3530 rb.cursor_type = NO_CURSOR;
|
|
|
3531
|
|
|
3532 if (!EQ (Qzero, w->modeline_shadow_thickness)
|
|
|
3533 && FRAME_WIN_P (f))
|
|
|
3534 {
|
|
|
3535 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3536
|
|
|
3537 dl->ypos -= shadow_thickness;
|
|
|
3538 rb.xpos += shadow_thickness;
|
|
|
3539 rb.width -= 2 * shadow_thickness;
|
|
|
3540 }
|
|
|
3541
|
|
|
3542 Dynarr_add (db->runes, rb);
|
|
|
3543 return;
|
|
|
3544 }
|
|
|
3545
|
|
|
3546 /* !!#### not right; needs to compute the max height of
|
|
|
3547 all the charsets */
|
|
|
3548 font_inst = WINDOW_FACE_CACHEL_FONT (w, MODELINE_INDEX, Vcharset_ascii);
|
|
|
3549
|
|
|
3550 dl->ascent = XFONT_INSTANCE (font_inst)->ascent;
|
|
|
3551 dl->descent = XFONT_INSTANCE (font_inst)->descent;
|
|
|
3552
|
|
|
3553 min_pixpos = dl->bounds.left_out;
|
|
|
3554 max_pixpos = dl->bounds.right_out;
|
|
|
3555
|
|
|
3556 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
3557 {
|
|
|
3558 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3559
|
|
|
3560 ypos_adj = shadow_thickness;
|
|
|
3561 min_pixpos += shadow_thickness;
|
|
|
3562 max_pixpos -= shadow_thickness;
|
|
|
3563 }
|
|
|
3564 else
|
|
|
3565 ypos_adj = 0;
|
|
|
3566
|
|
|
3567 generate_formatted_string_db (b->modeline_format,
|
|
|
3568 b->generated_modeline_string, w, dl, db,
|
|
|
3569 MODELINE_INDEX, min_pixpos, max_pixpos, type);
|
|
|
3570
|
|
|
3571 /* The modeline is at the bottom of the gutters. We have to wait to
|
|
|
3572 set this until we've generated teh modeline in order to account
|
|
|
3573 for any embedded faces. */
|
|
|
3574 dl->ypos = WINDOW_BOTTOM (w) - dl->descent - ypos_adj;
|
|
|
3575 }
|
|
|
3576
|
|
|
3577 static void
|
|
|
3578 generate_formatted_string_db (Lisp_Object format_str, Lisp_Object result_str,
|
|
|
3579 struct window *w, struct display_line *dl,
|
|
|
3580 struct display_block *db, face_index findex,
|
|
|
3581 int min_pixpos, int max_pixpos, int type)
|
|
|
3582 {
|
|
|
3583 struct frame *f = XFRAME (w->frame);
|
|
|
3584 struct device *d = XDEVICE (f->device);
|
|
|
3585
|
|
|
3586 pos_data data;
|
|
|
3587 int c_pixpos;
|
|
|
3588
|
|
|
3589 memset (&data, 0, sizeof (data));
|
|
|
3590 data.d = d;
|
|
|
3591 data.db = db;
|
|
|
3592 data.dl = dl;
|
|
|
3593 data.findex = findex;
|
|
|
3594 data.pixpos = min_pixpos;
|
|
|
3595 data.max_pixpos = max_pixpos;
|
|
|
3596 data.cursor_type = NO_CURSOR;
|
|
|
3597 data.last_charset = Qunbound;
|
|
94
|
3598 data.last_findex = DEFAULT_INDEX;
|
|
0
|
3599 data.result_str = result_str;
|
|
|
3600 data.is_modeline = 1;
|
|
|
3601 XSETWINDOW (data.window, w);
|
|
|
3602
|
|
|
3603 Dynarr_reset (formatted_string_extent_dynarr);
|
|
|
3604 Dynarr_reset (formatted_string_extent_start_dynarr);
|
|
|
3605 Dynarr_reset (formatted_string_extent_end_dynarr);
|
|
|
3606
|
|
|
3607 /* This recursively builds up the modeline. */
|
|
|
3608 generate_fstring_runes (w, &data, 0, 0, -1, format_str, 0,
|
|
|
3609 max_pixpos - min_pixpos, findex, type);
|
|
|
3610
|
|
|
3611 if (Dynarr_length (db->runes))
|
|
|
3612 {
|
|
|
3613 struct rune *rb =
|
|
|
3614 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
3615 c_pixpos = rb->xpos + rb->width;
|
|
|
3616 }
|
|
|
3617 else
|
|
|
3618 c_pixpos = min_pixpos;
|
|
|
3619
|
|
|
3620 /* If we don't reach the right side of the window, add a blank rune
|
|
|
3621 to make up the difference. This usually only occurs if the
|
|
|
3622 modeline face is using a proportional width font or a fixed width
|
|
|
3623 font of a different size from the default face font. */
|
|
|
3624
|
|
|
3625 if (c_pixpos < max_pixpos)
|
|
|
3626 {
|
|
|
3627 data.pixpos = c_pixpos;
|
|
|
3628 data.blank_width = max_pixpos - data.pixpos;
|
|
|
3629
|
|
|
3630 add_blank_rune (&data, NULL, 0);
|
|
|
3631 }
|
|
|
3632
|
|
|
3633 /* Now create the result string and frob the extents into it. */
|
|
|
3634 if (!NILP (result_str))
|
|
|
3635 {
|
|
|
3636 int elt;
|
|
|
3637 Bytecount len;
|
|
|
3638 Bufbyte *strdata;
|
|
|
3639 struct buffer *buf = XBUFFER (WINDOW_BUFFER (w));
|
|
|
3640
|
|
|
3641 detach_all_extents (result_str);
|
|
|
3642 resize_string (XSTRING (result_str), -1,
|
|
16
|
3643 data.bytepos - XSTRING_LENGTH (result_str));
|
|
|
3644
|
|
|
3645 strdata = XSTRING_DATA (result_str);
|
|
0
|
3646
|
|
|
3647 for (elt = 0, len = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
3648 {
|
|
|
3649 if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
|
|
|
3650 {
|
|
|
3651 len += (set_charptr_emchar
|
|
|
3652 (strdata + len, Dynarr_atp (db->runes,
|
|
|
3653 elt)->object.chr.ch));
|
|
|
3654 }
|
|
|
3655 }
|
|
|
3656
|
|
|
3657 for (elt = 0; elt < Dynarr_length (formatted_string_extent_dynarr);
|
|
|
3658 elt++)
|
|
|
3659 {
|
|
|
3660 Lisp_Object extent = Qnil;
|
|
|
3661 Lisp_Object child;
|
|
|
3662
|
|
|
3663 XSETEXTENT (extent, Dynarr_at (formatted_string_extent_dynarr, elt));
|
|
|
3664 child = Fgethash (extent, buf->modeline_extent_table, Qnil);
|
|
|
3665 if (NILP (child))
|
|
|
3666 {
|
|
|
3667 child = Fmake_extent (Qnil, Qnil, result_str);
|
|
|
3668 Fputhash (extent, child, buf->modeline_extent_table);
|
|
|
3669 }
|
|
|
3670 Fset_extent_parent (child, extent);
|
|
|
3671 set_extent_endpoints
|
|
|
3672 (XEXTENT (child),
|
|
|
3673 Dynarr_at (formatted_string_extent_start_dynarr, elt),
|
|
|
3674 Dynarr_at (formatted_string_extent_end_dynarr, elt),
|
|
|
3675 result_str);
|
|
|
3676 }
|
|
|
3677 }
|
|
|
3678 }
|
|
|
3679
|
|
|
3680 static Charcount
|
|
|
3681 add_string_to_fstring_db_runes (pos_data *data, CONST Bufbyte *str,
|
|
100
|
3682 Charcount pos, Charcount min_pos, Charcount max_pos)
|
|
0
|
3683 {
|
|
|
3684 /* This function has been Mule-ized. */
|
|
|
3685 Charcount end;
|
|
|
3686 CONST Bufbyte *cur_pos = str;
|
|
|
3687 struct display_block *db = data->db;
|
|
|
3688
|
|
|
3689 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3690 while (Dynarr_length (db->runes) < pos)
|
|
|
3691 add_blank_rune (data, NULL, 0);
|
|
|
3692
|
|
|
3693 end = (Dynarr_length (db->runes) +
|
|
|
3694 bytecount_to_charcount (str, strlen ((CONST char *) str)));
|
|
100
|
3695 if (max_pos != -1)
|
|
|
3696 end = min (max_pos, end);
|
|
0
|
3697
|
|
|
3698 while (pos < end && *cur_pos)
|
|
|
3699 {
|
|
|
3700 CONST Bufbyte *old_cur_pos = cur_pos;
|
|
|
3701 int succeeded;
|
|
|
3702
|
|
|
3703 data->ch = charptr_emchar (cur_pos);
|
|
|
3704 succeeded = (add_emchar_rune (data) != ADD_FAILED);
|
|
|
3705 INC_CHARPTR (cur_pos);
|
|
|
3706 if (succeeded)
|
|
|
3707 {
|
|
|
3708 pos++;
|
|
|
3709 data->modeline_charpos++;
|
|
|
3710 data->bytepos += cur_pos - old_cur_pos;
|
|
|
3711 }
|
|
|
3712 }
|
|
|
3713
|
|
100
|
3714 while (Dynarr_length (db->runes) < min_pos &&
|
|
0
|
3715 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3716 add_blank_rune (data, NULL, 0);
|
|
|
3717
|
|
|
3718 return Dynarr_length (db->runes);
|
|
|
3719 }
|
|
|
3720
|
|
|
3721 /* #### Urk! Should also handle begin-glyphs and end-glyphs in
|
|
|
3722 modeline extents. */
|
|
|
3723 static Charcount
|
|
|
3724 add_glyph_to_fstring_db_runes (pos_data *data, Lisp_Object glyph,
|
|
100
|
3725 Charcount pos, Charcount min_pos, Charcount max_pos)
|
|
0
|
3726 {
|
|
|
3727 /* This function has been Mule-ized. */
|
|
|
3728 Charcount end;
|
|
|
3729 struct display_block *db = data->db;
|
|
|
3730 struct glyph_block gb;
|
|
|
3731
|
|
|
3732 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3733 while (Dynarr_length (db->runes) < pos)
|
|
|
3734 add_blank_rune (data, NULL, 0);
|
|
|
3735
|
|
|
3736 end = Dynarr_length (db->runes) + 1;
|
|
100
|
3737 if (max_pos != -1)
|
|
|
3738 end = min (max_pos, end);
|
|
0
|
3739
|
|
|
3740 gb.glyph = glyph;
|
|
|
3741 gb.extent = Qnil;
|
|
|
3742 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
3743 pos++;
|
|
|
3744
|
|
|
3745 while (Dynarr_length (db->runes) < pos &&
|
|
|
3746 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3747 add_blank_rune (data, NULL, 0);
|
|
|
3748
|
|
|
3749 return Dynarr_length (db->runes);
|
|
|
3750 }
|
|
|
3751
|
|
|
3752 /* If max_pos is == -1, it is considered to be infinite. The same is
|
|
|
3753 true of max_pixsize. */
|
|
|
3754 #define SET_CURRENT_MODE_CHARS_PIXSIZE \
|
|
|
3755 if (Dynarr_length (data->db->runes)) \
|
|
|
3756 cur_pixsize = data->pixpos - Dynarr_atp (data->db->runes, 0)->xpos; \
|
|
|
3757 else \
|
|
|
3758 cur_pixsize = 0;
|
|
|
3759
|
|
|
3760 /* Note that this function does "positions" in terms of characters and
|
|
|
3761 not in terms of columns. This is necessary to make the formatting
|
|
|
3762 work correctly when proportional width fonts are used in the
|
|
|
3763 modeline. */
|
|
|
3764 static Charcount
|
|
|
3765 generate_fstring_runes (struct window *w, pos_data *data, Charcount pos,
|
|
|
3766 Charcount min_pos, Charcount max_pos,
|
|
|
3767 Lisp_Object elt, int depth, int max_pixsize,
|
|
|
3768 face_index findex, int type)
|
|
|
3769 {
|
|
|
3770 /* This function has been Mule-ized. */
|
|
|
3771 /* #### The other losing things in this function are:
|
|
|
3772
|
|
|
3773 -- C zero-terminated-string lossage.
|
|
|
3774 -- Non-printable characters should be converted into something
|
|
|
3775 appropriate (e.g. ^F) instead of blindly being printed anyway.
|
|
|
3776 */
|
|
183
|
3777
|
|
0
|
3778 tail_recurse:
|
|
|
3779 if (depth > 10)
|
|
|
3780 goto invalid;
|
|
|
3781
|
|
|
3782 depth++;
|
|
|
3783
|
|
|
3784 if (STRINGP (elt))
|
|
|
3785 {
|
|
|
3786 /* A string. Add to the display line and check for %-constructs
|
|
|
3787 within it. */
|
|
|
3788
|
|
16
|
3789 Bufbyte *this = XSTRING_DATA (elt);
|
|
0
|
3790
|
|
|
3791 while ((pos < max_pos || max_pos == -1) && *this)
|
|
|
3792 {
|
|
|
3793 Bufbyte *last = this;
|
|
|
3794
|
|
|
3795 while (*this && *this != '%')
|
|
|
3796 this++;
|
|
|
3797
|
|
|
3798 if (this != last)
|
|
|
3799 {
|
|
|
3800 /* The string is just a string. */
|
|
|
3801 Charcount size =
|
|
|
3802 bytecount_to_charcount (last, this - last) + pos;
|
|
|
3803 Charcount tmp_max = (max_pos == -1 ? size : min (size, max_pos));
|
|
|
3804
|
|
|
3805 pos = add_string_to_fstring_db_runes (data, last, pos, pos,
|
|
|
3806 tmp_max);
|
|
|
3807 }
|
|
|
3808 else /* *this == '%' */
|
|
|
3809 {
|
|
|
3810 Charcount spec_width = 0;
|
|
|
3811
|
|
|
3812 this++; /* skip over '%' */
|
|
|
3813
|
|
|
3814 /* We can't allow -ve args due to the "%-" construct.
|
|
|
3815 * Argument specifies minwidth but not maxwidth
|
|
|
3816 * (maxwidth can be specified by
|
|
|
3817 * (<negative-number> . <stuff>) modeline elements)
|
|
|
3818 */
|
|
|
3819 while (isdigit (*this))
|
|
|
3820 {
|
|
|
3821 spec_width = spec_width * 10 + (*this - '0');
|
|
|
3822 this++;
|
|
|
3823 }
|
|
|
3824 spec_width += pos;
|
|
|
3825
|
|
|
3826 if (*this == 'M')
|
|
|
3827 {
|
|
|
3828 pos = generate_fstring_runes (w, data, pos, spec_width,
|
|
|
3829 max_pos, Vglobal_mode_string,
|
|
|
3830 depth, max_pixsize, findex,
|
|
|
3831 type);
|
|
|
3832 }
|
|
|
3833 else if (*this == '-')
|
|
|
3834 {
|
|
|
3835 Charcount num_to_add;
|
|
|
3836
|
|
|
3837 if (max_pixsize < 0)
|
|
|
3838 num_to_add = 0;
|
|
|
3839 else if (max_pos != -1)
|
|
|
3840 num_to_add = max_pos - pos;
|
|
|
3841 else
|
|
|
3842 {
|
|
|
3843 int cur_pixsize;
|
|
|
3844 int dash_pixsize;
|
|
|
3845 Bufbyte ch = '-';
|
|
|
3846 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3847
|
|
|
3848 dash_pixsize =
|
|
|
3849 redisplay_text_width_string (w, findex, &ch, Qnil, 0,
|
|
|
3850 1);
|
|
|
3851
|
|
|
3852 num_to_add = (max_pixsize - cur_pixsize) / dash_pixsize;
|
|
|
3853 num_to_add++;
|
|
|
3854 }
|
|
|
3855
|
|
|
3856 while (num_to_add--)
|
|
|
3857 pos = add_string_to_fstring_db_runes
|
|
|
3858 (data, (CONST Bufbyte *) "-", pos, pos, max_pos);
|
|
|
3859 }
|
|
|
3860 else if (*this != 0)
|
|
|
3861 {
|
|
|
3862 Bufbyte *str;
|
|
|
3863 Emchar ch = charptr_emchar (this);
|
|
|
3864 decode_mode_spec (w, ch, type);
|
|
|
3865
|
|
|
3866 str = Dynarr_atp (mode_spec_bufbyte_string, 0);
|
|
|
3867 pos = add_string_to_fstring_db_runes (data,str, pos, pos,
|
|
|
3868 max_pos);
|
|
|
3869 }
|
|
|
3870
|
|
|
3871 /* NOT this++. There could be any sort of character at
|
|
|
3872 the current position. */
|
|
|
3873 INC_CHARPTR (this);
|
|
|
3874 }
|
|
|
3875
|
|
|
3876 if (max_pixsize > 0)
|
|
|
3877 {
|
|
|
3878 int cur_pixsize;
|
|
|
3879 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3880
|
|
|
3881 if (cur_pixsize >= max_pixsize)
|
|
|
3882 break;
|
|
|
3883 }
|
|
|
3884 }
|
|
|
3885 }
|
|
|
3886 else if (SYMBOLP (elt))
|
|
|
3887 {
|
|
|
3888 /* A symbol: process the value of the symbol recursively
|
|
|
3889 as if it appeared here directly. */
|
|
|
3890 Lisp_Object tem = symbol_value_in_buffer (elt, w->buffer);
|
|
|
3891
|
|
|
3892 if (!UNBOUNDP (tem))
|
|
|
3893 {
|
|
|
3894 /* If value is a string, output that string literally:
|
|
|
3895 don't check for % within it. */
|
|
|
3896 if (STRINGP (tem))
|
|
|
3897 {
|
|
|
3898 pos =
|
|
|
3899 add_string_to_fstring_db_runes
|
|
16
|
3900 (data, XSTRING_DATA (tem), pos, min_pos, max_pos);
|
|
0
|
3901 }
|
|
|
3902 /* Give up right away for nil or t. */
|
|
|
3903 else if (!EQ (tem, elt))
|
|
|
3904 {
|
|
183
|
3905 elt = tem;
|
|
|
3906 goto tail_recurse;
|
|
0
|
3907 }
|
|
|
3908 }
|
|
|
3909 }
|
|
|
3910 else if (CONSP (elt))
|
|
|
3911 {
|
|
|
3912 /* A cons cell: four distinct cases.
|
|
|
3913 * If first element is a string or a cons, process all the elements
|
|
|
3914 * and effectively concatenate them.
|
|
|
3915 * If first element is a negative number, truncate displaying cdr to
|
|
|
3916 * at most that many characters. If positive, pad (with spaces)
|
|
|
3917 * to at least that many characters.
|
|
|
3918 * If first element is a symbol, process the cadr or caddr recursively
|
|
|
3919 * according to whether the symbol's value is non-nil or nil.
|
|
|
3920 * If first element is a face, process the cdr recursively
|
|
|
3921 * without altering the depth.
|
|
|
3922 */
|
|
|
3923 Lisp_Object car, tem;
|
|
|
3924
|
|
|
3925 car = XCAR (elt);
|
|
|
3926 if (SYMBOLP (car))
|
|
|
3927 {
|
|
|
3928 elt = XCDR (elt);
|
|
|
3929 if (!CONSP (elt))
|
|
|
3930 goto invalid;
|
|
|
3931 tem = symbol_value_in_buffer (car, w->buffer);
|
|
|
3932 /* elt is now the cdr, and we know it is a cons cell.
|
|
|
3933 Use its car if CAR has a non-nil value. */
|
|
|
3934 if (!UNBOUNDP (tem))
|
|
|
3935 {
|
|
|
3936 if (!NILP (tem))
|
|
|
3937 {
|
|
183
|
3938 elt = XCAR (elt);
|
|
0
|
3939 goto tail_recurse;
|
|
|
3940 }
|
|
|
3941 }
|
|
|
3942 /* Symbol's value is nil (or symbol is unbound)
|
|
|
3943 * Get the cddr of the original list
|
|
|
3944 * and if possible find the caddr and use that.
|
|
|
3945 */
|
|
|
3946 elt = XCDR (elt);
|
|
|
3947 if (NILP (elt))
|
|
|
3948 ;
|
|
|
3949 else if (!CONSP (elt))
|
|
|
3950 goto invalid;
|
|
|
3951 else
|
|
|
3952 {
|
|
|
3953 elt = XCAR (elt);
|
|
|
3954 goto tail_recurse;
|
|
|
3955 }
|
|
|
3956 }
|
|
|
3957 else if (INTP (car))
|
|
|
3958 {
|
|
|
3959 Charcount lim = XINT (car);
|
|
|
3960
|
|
|
3961 elt = XCDR (elt);
|
|
|
3962
|
|
|
3963 if (lim < 0)
|
|
|
3964 {
|
|
|
3965 /* Negative int means reduce maximum width.
|
|
|
3966 * DO NOT change MIN_PIXPOS here!
|
|
|
3967 * (20 -10 . foo) should truncate foo to 10 col
|
|
|
3968 * and then pad to 20.
|
|
|
3969 */
|
|
|
3970 if (max_pos == -1)
|
|
|
3971 max_pos = pos - lim;
|
|
|
3972 else
|
|
|
3973 max_pos = min (max_pos, pos - lim);
|
|
|
3974 }
|
|
|
3975 else if (lim > 0)
|
|
|
3976 {
|
|
|
3977 /* Padding specified. Don't let it be more than
|
|
|
3978 * current maximum.
|
|
|
3979 */
|
|
|
3980 lim += pos;
|
|
|
3981 if (max_pos != -1 && lim > max_pos)
|
|
|
3982 lim = max_pos;
|
|
|
3983 /* If that's more padding than already wanted, queue it.
|
|
|
3984 * But don't reduce padding already specified even if
|
|
|
3985 * that is beyond the current truncation point.
|
|
|
3986 */
|
|
|
3987 if (lim > min_pos)
|
|
|
3988 min_pos = lim;
|
|
|
3989 }
|
|
|
3990 goto tail_recurse;
|
|
|
3991 }
|
|
|
3992 else if (STRINGP (car) || CONSP (car))
|
|
|
3993 {
|
|
|
3994 int limit = 50;
|
|
|
3995 /* LIMIT is to protect against circular lists. */
|
|
|
3996 while (CONSP (elt) && --limit > 0
|
|
|
3997 && (pos < max_pos || max_pos == -1))
|
|
|
3998 {
|
|
|
3999 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
|
4000 XCAR (elt), depth,
|
|
|
4001 max_pixsize, findex, type);
|
|
|
4002 elt = XCDR (elt);
|
|
|
4003 }
|
|
|
4004 }
|
|
|
4005 else if (EXTENTP (car))
|
|
|
4006 {
|
|
|
4007 struct extent *ext = XEXTENT (car);
|
|
|
4008
|
|
|
4009 if (EXTENT_LIVE_P (ext))
|
|
|
4010 {
|
|
|
4011 face_index old_findex = data->findex;
|
|
|
4012 Lisp_Object face;
|
|
|
4013 Lisp_Object font_inst;
|
|
|
4014 face_index new_findex;
|
|
|
4015 Bytecount start = data->bytepos;
|
|
|
4016
|
|
|
4017 face = extent_face (ext);
|
|
|
4018 if (FACEP (face))
|
|
|
4019 {
|
|
|
4020 /* #### needs to merge faces, sigh */
|
|
|
4021 /* #### needs to handle list of faces */
|
|
|
4022 new_findex = get_builtin_face_cache_index (w, face);
|
|
|
4023 /* !!#### not right; needs to compute the max height of
|
|
|
4024 all the charsets */
|
|
|
4025 font_inst = WINDOW_FACE_CACHEL_FONT (w, new_findex,
|
|
|
4026 Vcharset_ascii);
|
|
183
|
4027
|
|
0
|
4028 data->dl->ascent = max (data->dl->ascent,
|
|
|
4029 XFONT_INSTANCE (font_inst)->ascent);
|
|
|
4030 data->dl->descent = max (data->dl->descent,
|
|
|
4031 XFONT_INSTANCE (font_inst)->
|
|
|
4032 descent);
|
|
|
4033 }
|
|
|
4034 else
|
|
|
4035 new_findex = old_findex;
|
|
183
|
4036
|
|
0
|
4037 data->findex = new_findex;
|
|
|
4038 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
|
4039 XCDR (elt), depth - 1,
|
|
|
4040 max_pixsize, new_findex, type);
|
|
|
4041 data->findex = old_findex;
|
|
|
4042 Dynarr_add (formatted_string_extent_dynarr, ext);
|
|
|
4043 Dynarr_add (formatted_string_extent_start_dynarr, start);
|
|
|
4044 Dynarr_add (formatted_string_extent_end_dynarr, data->bytepos);
|
|
|
4045 }
|
|
|
4046 }
|
|
|
4047 }
|
|
|
4048 else if (GLYPHP (elt))
|
|
|
4049 {
|
|
|
4050 pos = add_glyph_to_fstring_db_runes (data, elt, pos, pos, max_pos);
|
|
|
4051 }
|
|
|
4052 else
|
|
|
4053 {
|
|
|
4054 invalid:
|
|
|
4055 pos =
|
|
|
4056 add_string_to_fstring_db_runes
|
|
|
4057 (data, (CONST Bufbyte *) GETTEXT ("*invalid*"), pos, min_pos,
|
|
|
4058 max_pos);
|
|
|
4059 }
|
|
|
4060
|
|
|
4061 if (min_pos > pos)
|
|
|
4062 {
|
|
|
4063 add_string_to_fstring_db_runes (data, (CONST Bufbyte *) "", pos, min_pos,
|
|
|
4064 -1);
|
|
|
4065 }
|
|
|
4066
|
|
|
4067 return pos;
|
|
|
4068 }
|
|
|
4069
|
|
|
4070 /* The caller is responsible for freeing the returned string. */
|
|
2
|
4071 Bufbyte *
|
|
0
|
4072 generate_formatted_string (struct window *w, Lisp_Object format_str,
|
|
|
4073 Lisp_Object result_str, face_index findex, int type)
|
|
|
4074 {
|
|
|
4075 struct display_line *dl;
|
|
|
4076 struct display_block *db;
|
|
|
4077 int elt = 0;
|
|
|
4078
|
|
|
4079 dl = &formatted_string_display_line;
|
|
|
4080 db = get_display_block_from_line (dl, TEXT);
|
|
|
4081 Dynarr_reset (db->runes);
|
|
|
4082
|
|
|
4083 generate_formatted_string_db (format_str, result_str, w, dl, db, findex, 0,
|
|
|
4084 -1, type);
|
|
|
4085
|
|
|
4086 Dynarr_reset (formatted_string_emchar_dynarr);
|
|
|
4087 while (elt < Dynarr_length (db->runes))
|
|
|
4088 {
|
|
|
4089 if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
|
|
|
4090 Dynarr_add (formatted_string_emchar_dynarr,
|
|
|
4091 Dynarr_atp (db->runes, elt)->object.chr.ch);
|
|
|
4092 elt++;
|
|
|
4093 }
|
|
|
4094
|
|
2
|
4095 return
|
|
|
4096 convert_emchar_string_into_malloced_string
|
|
|
4097 ( Dynarr_atp (formatted_string_emchar_dynarr, 0),
|
|
|
4098 Dynarr_length (formatted_string_emchar_dynarr), 0);
|
|
0
|
4099 }
|
|
|
4100
|
|
|
4101 /* Update just the modeline. Assumes the desired display structs. If
|
|
|
4102 they do not have a modeline block, it does nothing. */
|
|
|
4103 static void
|
|
|
4104 regenerate_modeline (struct window *w)
|
|
|
4105 {
|
|
|
4106 display_line_dynarr *dla = window_display_lines (w, DESIRED_DISP);
|
|
|
4107
|
|
|
4108 if (!Dynarr_length (dla) || !Dynarr_atp (dla, 0)->modeline)
|
|
|
4109 return;
|
|
|
4110 else
|
|
|
4111 {
|
|
|
4112 generate_modeline (w, Dynarr_atp (dla, 0), DESIRED_DISP);
|
|
|
4113 redisplay_update_line (w, 0, 0, 0);
|
|
|
4114 }
|
|
|
4115 }
|
|
|
4116
|
|
|
4117 /* Make sure that modeline display line is present in the given
|
|
|
4118 display structs if the window has a modeline and update that
|
|
|
4119 line. Returns true if a modeline was needed. */
|
|
|
4120 static int
|
|
|
4121 ensure_modeline_generated (struct window *w, int type)
|
|
|
4122 {
|
|
|
4123 int need_modeline;
|
|
|
4124
|
|
|
4125 /* minibuffer windows don't have modelines */
|
|
|
4126 if (MINI_WINDOW_P (w))
|
|
|
4127 need_modeline = 0;
|
|
|
4128 /* windows which haven't had it turned off do */
|
|
|
4129 else if (WINDOW_HAS_MODELINE_P (w))
|
|
|
4130 need_modeline = 1;
|
|
|
4131 /* windows which have it turned off don't have a divider if there is
|
|
|
4132 a horizontal scrollbar */
|
|
|
4133 else if (window_scrollbar_height (w))
|
|
|
4134 need_modeline = 0;
|
|
|
4135 /* and in this case there is none */
|
|
|
4136 else
|
|
|
4137 need_modeline = 1;
|
|
|
4138
|
|
|
4139 if (need_modeline)
|
|
|
4140 {
|
|
|
4141 display_line_dynarr *dla;
|
|
|
4142
|
|
|
4143 dla = window_display_lines (w, type);
|
|
|
4144
|
|
|
4145 /* We don't care if there is a display line which is not
|
|
|
4146 currently a modeline because it is definitely going to become
|
|
|
4147 one if we have gotten to this point. */
|
|
|
4148 if (Dynarr_length (dla) == 0)
|
|
|
4149 {
|
|
|
4150 if (Dynarr_largest (dla) > 0)
|
|
|
4151 {
|
|
|
4152 struct display_line *mlp = Dynarr_atp (dla, 0);
|
|
|
4153 Dynarr_add (dla, *mlp);
|
|
|
4154 }
|
|
|
4155 else
|
|
|
4156 {
|
|
|
4157 struct display_line modeline;
|
|
|
4158 memset (&modeline, 0, sizeof (struct display_line));
|
|
|
4159 Dynarr_add (dla, modeline);
|
|
|
4160 }
|
|
|
4161 }
|
|
|
4162
|
|
|
4163 /* If we're adding a new place marker go ahead and generate the
|
|
|
4164 modeline so that it is available for use by
|
|
|
4165 window_modeline_height. */
|
|
|
4166 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
4167 }
|
|
|
4168
|
|
|
4169 return need_modeline;
|
|
|
4170 }
|
|
|
4171
|
|
|
4172 /* #### Kludge or not a kludge. I tend towards the former. */
|
|
|
4173 int
|
|
|
4174 real_current_modeline_height (struct window *w)
|
|
|
4175 {
|
|
185
|
4176 Fset_marker (w->start[CMOTION_DISP], w->start[CURRENT_DISP], w->buffer);
|
|
2
|
4177 Fset_marker (w->pointm[CMOTION_DISP], w->pointm[CURRENT_DISP], w->buffer);
|
|
0
|
4178
|
|
|
4179 if (ensure_modeline_generated (w, CMOTION_DISP))
|
|
|
4180 {
|
|
185
|
4181 display_line_dynarr *dla = window_display_lines (w, CMOTION_DISP);
|
|
0
|
4182
|
|
|
4183 if (Dynarr_length (dla))
|
|
|
4184 {
|
|
|
4185 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
4186 return (Dynarr_atp (dla, 0)->ascent +
|
|
|
4187 Dynarr_atp (dla, 0)->descent);
|
|
185
|
4188 }
|
|
|
4189 }
|
|
|
4190 return 0;
|
|
0
|
4191 }
|
|
|
4192
|
|
|
4193
|
|
|
4194 /***************************************************************************/
|
|
|
4195 /* */
|
|
|
4196 /* window-regeneration routines */
|
|
|
4197 /* */
|
|
|
4198 /***************************************************************************/
|
|
|
4199
|
|
|
4200 /* For a given window and starting position in the buffer it contains,
|
|
|
4201 ensure that the TYPE display lines accurately represent the
|
|
|
4202 presentation of the window. We pass the buffer instead of getting
|
|
|
4203 it from the window since redisplay_window may have temporarily
|
|
|
4204 changed it to the echo area buffer. */
|
|
|
4205
|
|
|
4206 static void
|
|
|
4207 regenerate_window (struct window *w, Bufpos start_pos, Bufpos point, int type)
|
|
|
4208 {
|
|
|
4209 struct frame *f = XFRAME (w->frame);
|
|
|
4210 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4211 int ypos = WINDOW_TEXT_TOP (w);
|
|
|
4212 int yend; /* set farther down */
|
|
|
4213
|
|
|
4214 prop_block_dynarr *prop;
|
|
|
4215 layout_bounds bounds;
|
|
|
4216 display_line_dynarr *dla;
|
|
|
4217 int need_modeline;
|
|
|
4218
|
|
|
4219 /* The lines had better exist by this point. */
|
|
|
4220 if (!(dla = window_display_lines (w, type)))
|
|
|
4221 abort ();
|
|
|
4222 Dynarr_reset (dla);
|
|
|
4223 w->max_line_len = 0;
|
|
|
4224
|
|
|
4225 /* Normally these get updated in redisplay_window but it is possible
|
|
|
4226 for this function to get called from some other points where that
|
|
|
4227 update may not have occurred. This acts as a safety check. */
|
|
|
4228 if (!Dynarr_length (w->face_cachels))
|
|
|
4229 reset_face_cachels (w);
|
|
|
4230 if (!Dynarr_length (w->glyph_cachels))
|
|
|
4231 reset_glyph_cachels (w);
|
|
|
4232
|
|
|
4233 Fset_marker (w->start[type], make_int (start_pos), w->buffer);
|
|
|
4234 Fset_marker (w->pointm[type], make_int (point), w->buffer);
|
|
|
4235 w->last_point_x[type] = -1;
|
|
|
4236 w->last_point_y[type] = -1;
|
|
|
4237
|
|
|
4238 /* Make sure a modeline is in the structs if needed. */
|
|
|
4239 need_modeline = ensure_modeline_generated (w, type);
|
|
|
4240
|
|
|
4241 /* Wait until here to set this so that the structs have a modeline
|
|
|
4242 generated in the case where one didn't exist. */
|
|
|
4243 yend = WINDOW_TEXT_BOTTOM (w);
|
|
|
4244
|
|
|
4245 bounds = calculate_display_line_boundaries (w, 0);
|
|
|
4246
|
|
110
|
4247 /* 97/3/14 jhod: stuff added here to support pre-prompts (used for input systems) */
|
|
0
|
4248 if (MINI_WINDOW_P (w)
|
|
110
|
4249 && (!NILP (Vminibuf_prompt) || !NILP (Vminibuf_preprompt))
|
|
0
|
4250 && !echo_area_active (f)
|
|
|
4251 && start_pos == BUF_BEGV (b))
|
|
|
4252 {
|
|
|
4253 struct prop_block pb;
|
|
110
|
4254 Lisp_Object string;
|
|
185
|
4255 prop = Dynarr_new (prop_block);
|
|
0
|
4256
|
|
110
|
4257 string = concat2(Vminibuf_preprompt, Vminibuf_prompt);
|
|
0
|
4258 pb.type = PROP_MINIBUF_PROMPT;
|
|
110
|
4259 pb.data.p_string.str = XSTRING_DATA(string);
|
|
|
4260 pb.data.p_string.len = XSTRING_LENGTH(string);
|
|
0
|
4261 Dynarr_add (prop, pb);
|
|
|
4262 }
|
|
|
4263 else
|
|
|
4264 prop = 0;
|
|
|
4265
|
|
|
4266 while (ypos < yend)
|
|
|
4267 {
|
|
|
4268 struct display_line dl;
|
|
|
4269 struct display_line *dlp;
|
|
|
4270 int local;
|
|
|
4271
|
|
|
4272 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
4273 {
|
|
|
4274 dlp = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
4275 local = 0;
|
|
|
4276 }
|
|
|
4277 else
|
|
|
4278 {
|
|
|
4279 dlp = &dl;
|
|
|
4280 memset (dlp, 0, sizeof (struct display_line));
|
|
|
4281 local = 1;
|
|
|
4282 }
|
|
|
4283
|
|
|
4284 dlp->bounds = bounds;
|
|
|
4285 dlp->offset = 0;
|
|
|
4286 start_pos = generate_display_line (w, dlp, 1, start_pos,
|
|
|
4287 w->hscroll, &prop, type);
|
|
|
4288 dlp->ypos = ypos + dlp->ascent;
|
|
|
4289 ypos = dlp->ypos + dlp->descent;
|
|
|
4290
|
|
|
4291 if (ypos > yend)
|
|
|
4292 {
|
|
|
4293 int visible_height = dlp->ascent + dlp->descent;
|
|
|
4294
|
|
|
4295 dlp->clip = (ypos - yend);
|
|
|
4296 visible_height -= dlp->clip;
|
|
|
4297
|
|
|
4298 if (visible_height < VERTICAL_CLIP (w, 1))
|
|
|
4299 {
|
|
|
4300 if (local)
|
|
|
4301 free_display_line (dlp);
|
|
|
4302 break;
|
|
|
4303 }
|
|
|
4304 }
|
|
|
4305 else
|
|
|
4306 dlp->clip = 0;
|
|
|
4307
|
|
|
4308 if (dlp->cursor_elt != -1)
|
|
|
4309 {
|
|
|
4310 /* #### This check is steaming crap. Have to get things
|
|
|
4311 fixed so when create_text_block hits EOB, we're done,
|
|
|
4312 period. */
|
|
|
4313 if (w->last_point_x[type] == -1)
|
|
|
4314 {
|
|
|
4315 w->last_point_x[type] = dlp->cursor_elt;
|
|
|
4316 w->last_point_y[type] = Dynarr_length (dla);
|
|
|
4317 }
|
|
|
4318 else
|
|
|
4319 {
|
|
|
4320 /* #### This means that we've added a cursor at EOB
|
|
|
4321 twice. Yuck oh yuck. */
|
|
|
4322 struct display_block *db =
|
|
|
4323 get_display_block_from_line (dlp, TEXT);
|
|
|
4324
|
|
|
4325 Dynarr_atp (db->runes, dlp->cursor_elt)->cursor_type = NO_CURSOR;
|
|
|
4326 dlp->cursor_elt = -1;
|
|
|
4327 }
|
|
|
4328 }
|
|
|
4329
|
|
|
4330 if (dlp->num_chars > w->max_line_len)
|
|
|
4331 w->max_line_len = dlp->num_chars;
|
|
|
4332
|
|
|
4333 Dynarr_add (dla, *dlp);
|
|
|
4334
|
|
|
4335 /* #### This isn't right, but it is close enough for now. */
|
|
|
4336 w->window_end_pos[type] = start_pos;
|
|
|
4337
|
|
|
4338 /* #### This type of check needs to be done down in the
|
|
|
4339 generate_display_line call. */
|
|
|
4340 if (start_pos > BUF_ZV (b))
|
|
|
4341 break;
|
|
|
4342 }
|
|
|
4343
|
|
|
4344 if (prop)
|
|
110
|
4345 Dynarr_free (prop);
|
|
0
|
4346
|
|
|
4347 /* #### More not quite right, but close enough. */
|
|
|
4348 /* #### Ben sez: apparently window_end_pos[] is measured
|
|
|
4349 as the number of characters between the window end and the
|
|
|
4350 end of the buffer? This seems rather weirdo. What's
|
|
|
4351 the justification for this? */
|
|
|
4352 w->window_end_pos[type] = BUF_Z (b) - w->window_end_pos[type];
|
|
|
4353
|
|
|
4354 if (need_modeline)
|
|
|
4355 {
|
|
|
4356 /* We know that this is the right thing to use because we put it
|
|
|
4357 there when we first started working in this function. */
|
|
|
4358 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
4359 }
|
|
|
4360 }
|
|
|
4361
|
|
|
4362 #define REGEN_INC_FIND_START_END \
|
|
|
4363 do { \
|
|
|
4364 /* Determine start and end of lines. */ \
|
|
|
4365 if (!Dynarr_length (cdla)) \
|
|
|
4366 return 0; \
|
|
|
4367 else \
|
|
|
4368 { \
|
|
|
4369 if (Dynarr_atp (cdla, 0)->modeline && Dynarr_atp (ddla, 0)->modeline) \
|
|
|
4370 { \
|
|
|
4371 dla_start = 1; \
|
|
|
4372 } \
|
|
|
4373 else if (!Dynarr_atp (cdla, 0)->modeline \
|
|
|
4374 && !Dynarr_atp (ddla, 0)->modeline) \
|
|
|
4375 { \
|
|
|
4376 dla_start = 0; \
|
|
|
4377 } \
|
|
|
4378 else \
|
|
|
4379 abort (); /* structs differ */ \
|
|
|
4380 \
|
|
|
4381 dla_end = Dynarr_length (cdla) - 1; \
|
|
|
4382 } \
|
|
|
4383 \
|
|
|
4384 start_pos = (Dynarr_atp (cdla, dla_start)->bufpos \
|
|
|
4385 + Dynarr_atp (cdla, dla_start)->offset); \
|
|
|
4386 /* If this isn't true, then startp has changed and we need to do a \
|
|
|
4387 full regen. */ \
|
|
|
4388 if (startp != start_pos) \
|
|
|
4389 return 0; \
|
|
|
4390 \
|
|
|
4391 /* Point is outside the visible region so give up. */ \
|
|
|
4392 if (pointm < start_pos) \
|
|
|
4393 return 0; \
|
|
|
4394 \
|
|
|
4395 } while (0)
|
|
|
4396
|
|
|
4397 /* This attempts to incrementally update the display structures. It
|
|
|
4398 returns a boolean indicating success or failure. This function is
|
|
|
4399 very similar to regenerate_window_incrementally and is in fact only
|
|
|
4400 called from that function. However, because of the nature of the
|
|
|
4401 changes it deals with it sometimes makes different assumptions
|
|
|
4402 which can lead to success which are much more difficult to make
|
|
|
4403 when dealing with buffer changes. */
|
|
|
4404
|
|
|
4405 static int
|
|
|
4406 regenerate_window_extents_only_changed (struct window *w, Bufpos startp,
|
|
|
4407 Bufpos pointm,
|
|
|
4408 Charcount beg_unchanged,
|
|
|
4409 Charcount end_unchanged)
|
|
|
4410 {
|
|
|
4411 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4412 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
4413 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
4414
|
|
|
4415 int dla_start = 0;
|
|
|
4416 int dla_end, line;
|
|
|
4417 int first_line, last_line;
|
|
|
4418 Bufpos start_pos;
|
|
|
4419 /* Don't define this in the loop where it is used because we
|
|
|
4420 definitely want its value to survive between passes. */
|
|
|
4421 prop_block_dynarr *prop = NULL;
|
|
|
4422
|
|
|
4423 /* If we don't have any buffer change recorded but the modiff flag has
|
|
|
4424 been incremented, then fail. I'm not sure of the exact circumstances
|
|
|
4425 under which this can happen, but I believe that it is probably a
|
|
|
4426 reasonable happening. */
|
|
|
4427 if (!point_visible (w, pointm, CURRENT_DISP)
|
|
|
4428 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b))
|
|
|
4429 return 0;
|
|
|
4430
|
|
|
4431 /* If the cursor is moved we attempt to update it. If we succeed we
|
|
|
4432 go ahead and proceed with the optimization attempt. */
|
|
|
4433 if (!EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
4434 || pointm != marker_position (w->last_point[CURRENT_DISP]))
|
|
|
4435 {
|
|
|
4436 struct frame *f = XFRAME (w->frame);
|
|
|
4437 struct device *d = XDEVICE (f->device);
|
|
|
4438 struct frame *sel_f = device_selected_frame (d);
|
|
|
4439 int success = 0;
|
|
|
4440
|
|
|
4441 if (w->last_point_x[CURRENT_DISP] != -1
|
|
|
4442 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
4443 {
|
|
|
4444
|
|
|
4445 if (redisplay_move_cursor (w, pointm, WINDOW_TTY_P (w)))
|
|
|
4446 {
|
|
|
4447 /* Always regenerate the modeline in case it is
|
|
|
4448 displaying the current line or column. */
|
|
|
4449 regenerate_modeline (w);
|
|
|
4450 success = 1;
|
|
|
4451 }
|
|
|
4452 }
|
|
|
4453 else if (w != XWINDOW (FRAME_SELECTED_WINDOW (sel_f)))
|
|
|
4454 {
|
|
|
4455 if (f->modeline_changed)
|
|
|
4456 regenerate_modeline (w);
|
|
|
4457 success = 1;
|
|
|
4458 }
|
|
|
4459
|
|
|
4460 if (!success)
|
|
|
4461 return 0;
|
|
|
4462 }
|
|
|
4463
|
|
|
4464 if (beg_unchanged == -1 && end_unchanged == -1)
|
|
|
4465 return 1;
|
|
|
4466
|
|
|
4467 /* assert: There are no buffer modifications or they are all below the
|
|
|
4468 visible region. We assume that regenerate_window_incrementally has
|
|
|
4469 not called us unless this is true. */
|
|
|
4470
|
|
|
4471 REGEN_INC_FIND_START_END;
|
|
|
4472
|
|
|
4473 /* If the changed are starts before the visible area, give up. */
|
|
|
4474 if (beg_unchanged < startp)
|
|
|
4475 return 0;
|
|
|
4476
|
|
|
4477 /* Find what display line the extent changes first affect. */
|
|
|
4478 line = dla_start;
|
|
|
4479 while (line <= dla_end)
|
|
|
4480 {
|
|
|
4481 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
4482 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
4483 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
4484
|
|
|
4485 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
4486 break;
|
|
|
4487
|
|
|
4488 line++;
|
|
|
4489 }
|
|
|
4490
|
|
|
4491 /* If the changes are below the visible area then if point hasn't
|
|
|
4492 moved return success otherwise fail in order to be safe. */
|
|
|
4493 if (line > dla_end)
|
|
|
4494 {
|
|
|
4495 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
4496 && pointm == marker_position (w->last_point[CURRENT_DISP]))
|
|
|
4497 return 1;
|
|
|
4498 else
|
|
|
4499 return 0;
|
|
|
4500 }
|
|
|
4501
|
|
|
4502 /* At this point we know what line the changes first affect. We now
|
|
|
4503 begin redrawing lines as long as we are still in the affected
|
|
|
4504 region and the line's size and positioning don't change.
|
|
|
4505 Otherwise we fail. If we fail we will have altered the desired
|
|
|
4506 structs which could lead to an assertion failure. However, if we
|
|
|
4507 fail the next thing that is going to happen is a full regen so we
|
|
|
4508 will actually end up being safe. */
|
|
|
4509 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
4510 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
4511 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
4512 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
4513
|
|
|
4514 first_line = last_line = line;
|
|
|
4515 while (line <= dla_end)
|
|
|
4516 {
|
|
|
4517 Bufpos old_start, old_end, new_start;
|
|
|
4518 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
4519 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
4520 struct display_block *db;
|
|
|
4521 int initial_size;
|
|
|
4522
|
|
|
4523 assert (cdl->bufpos == ddl->bufpos);
|
|
|
4524 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
4525 assert (cdl->offset == ddl->offset);
|
|
|
4526
|
|
|
4527 db = get_display_block_from_line (ddl, TEXT);
|
|
|
4528 initial_size = Dynarr_length (db->runes);
|
|
|
4529 old_start = ddl->bufpos + ddl->offset;
|
|
|
4530 old_end = ddl->end_bufpos + ddl->offset;
|
|
|
4531
|
|
|
4532 /* If this is the first line being updated and it used
|
|
|
4533 propagation data, fail. Otherwise we'll be okay because
|
|
|
4534 we'll have the necessary propagation data. */
|
|
|
4535 if (line == first_line && ddl->used_prop_data)
|
|
|
4536 return 0;
|
|
|
4537
|
|
|
4538 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
|
4539 w->hscroll, &prop, DESIRED_DISP);
|
|
|
4540 ddl->offset = 0;
|
|
|
4541
|
|
|
4542 /* #### If there is propagated stuff the fail. We could
|
|
|
4543 probably actually deal with this if the line had propagated
|
|
|
4544 information when originally created by a full
|
|
|
4545 regeneration. */
|
|
|
4546 if (prop)
|
|
|
4547 {
|
|
|
4548 Dynarr_free (prop);
|
|
|
4549 return 0;
|
|
|
4550 }
|
|
|
4551
|
|
|
4552 /* If any line position parameters have changed or a
|
|
|
4553 cursor has disappeared or disappeared, fail. */
|
|
|
4554 db = get_display_block_from_line (ddl, TEXT);
|
|
|
4555 if (cdl->ypos != ddl->ypos
|
|
|
4556 || cdl->ascent != ddl->ascent
|
|
|
4557 || cdl->descent != ddl->descent
|
|
|
4558 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
4559 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
|
|
|
4560 || old_start != ddl->bufpos
|
|
|
4561 || old_end != ddl->end_bufpos
|
|
|
4562 || initial_size != Dynarr_length (db->runes))
|
|
|
4563 {
|
|
|
4564 return 0;
|
|
|
4565 }
|
|
|
4566
|
|
|
4567 if (ddl->cursor_elt != -1)
|
|
|
4568 {
|
|
|
4569 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
4570 w->last_point_y[DESIRED_DISP] = line;
|
|
|
4571 }
|
|
|
4572
|
|
|
4573 last_line = line;
|
|
|
4574
|
|
|
4575 /* If the extent changes end on the line we just updated then
|
|
|
4576 we're done. Otherwise go on to the next line. */
|
|
|
4577 if (end_unchanged <= ddl->end_bufpos)
|
|
|
4578 break;
|
|
|
4579 else
|
|
|
4580 line++;
|
|
|
4581 }
|
|
|
4582
|
|
|
4583 redisplay_update_line (w, first_line, last_line, 1);
|
|
|
4584 return 1;
|
|
|
4585 }
|
|
|
4586
|
|
|
4587 /* Attempt to update the display data structures based on knowledge of
|
|
|
4588 the changed region in the buffer. Returns a boolean indicating
|
|
|
4589 success or failure. If this function returns a failure then a
|
|
|
4590 regenerate_window _must_ be performed next in order to maintain
|
|
|
4591 invariants located here. */
|
|
|
4592
|
|
|
4593 static int
|
|
|
4594 regenerate_window_incrementally (struct window *w, Bufpos startp,
|
|
|
4595 Bufpos pointm)
|
|
|
4596 {
|
|
|
4597 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4598 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
4599 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
4600 Charcount beg_unchanged, end_unchanged;
|
|
|
4601 Charcount extent_beg_unchanged, extent_end_unchanged;
|
|
|
4602
|
|
|
4603 int dla_start = 0;
|
|
|
4604 int dla_end, line;
|
|
|
4605 Bufpos start_pos;
|
|
|
4606
|
|
|
4607 /* If this function is called, the current and desired structures
|
|
|
4608 had better be identical. If they are not, then that is a bug. */
|
|
|
4609 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
|
|
|
4610
|
|
|
4611 /* We don't handle minibuffer windows yet. The minibuffer prompt
|
|
|
4612 screws us up. */
|
|
|
4613 if (MINI_WINDOW_P (w))
|
|
|
4614 return 0;
|
|
|
4615
|
|
|
4616 extent_beg_unchanged = BUF_EXTENT_BEGIN_UNCHANGED (b);
|
|
|
4617 extent_end_unchanged = (BUF_EXTENT_END_UNCHANGED (b) == -1
|
|
|
4618 ? -1
|
|
|
4619 : BUF_Z (b) - BUF_EXTENT_END_UNCHANGED (b));
|
|
|
4620
|
|
|
4621 /* If nothing has changed in the buffer, then make sure point is ok
|
|
|
4622 and succeed. */
|
|
|
4623 if (BUF_BEGIN_UNCHANGED (b) == -1 && BUF_END_UNCHANGED (b) == -1)
|
|
|
4624 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
4625 extent_beg_unchanged,
|
|
|
4626 extent_end_unchanged);
|
|
|
4627
|
|
|
4628 /* We can't deal with deleted newlines. */
|
|
|
4629 if (BUF_NEWLINE_WAS_DELETED (b))
|
|
|
4630 return 0;
|
|
|
4631
|
|
|
4632 beg_unchanged = BUF_BEGIN_UNCHANGED (b);
|
|
|
4633 end_unchanged = (BUF_END_UNCHANGED (b) == -1
|
|
|
4634 ? -1
|
|
|
4635 : BUF_Z (b) - BUF_END_UNCHANGED (b));
|
|
|
4636
|
|
|
4637 REGEN_INC_FIND_START_END;
|
|
|
4638
|
|
|
4639 /* If the changed area starts before the visible area, give up. */
|
|
|
4640 if (beg_unchanged < startp)
|
|
|
4641 return 0;
|
|
|
4642
|
|
|
4643 /* Find what display line the buffer changes first affect. */
|
|
|
4644 line = dla_start;
|
|
|
4645 while (line <= dla_end)
|
|
|
4646 {
|
|
|
4647 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
4648 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
4649 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
4650
|
|
|
4651 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
4652 break;
|
|
|
4653
|
|
|
4654 line++;
|
|
|
4655 }
|
|
|
4656
|
|
|
4657 /* If the changes are below the visible area then if point hasn't
|
|
|
4658 moved return success otherwise fail in order to be safe. */
|
|
|
4659 if (line > dla_end)
|
|
|
4660 {
|
|
|
4661 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
4662 extent_beg_unchanged,
|
|
|
4663 extent_end_unchanged);
|
|
|
4664 }
|
|
|
4665 else
|
|
|
4666 /* At this point we know what line the changes first affect. We
|
|
|
4667 now redraw that line. If the changes are contained within it
|
|
|
4668 we are going to succeed and can update just that one line.
|
|
|
4669 Otherwise we fail. If we fail we will have altered the desired
|
|
|
4670 structs which could lead to an assertion failure. However, if
|
|
|
4671 we fail the next thing that is going to happen is a full regen
|
|
|
4672 so we will actually end up being safe. */
|
|
|
4673 {
|
|
|
4674 Bufpos new_start;
|
|
|
4675 prop_block_dynarr *prop = NULL;
|
|
|
4676 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
4677 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
4678
|
|
|
4679 assert (cdl->bufpos == ddl->bufpos);
|
|
|
4680 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
4681 assert (cdl->offset == ddl->offset);
|
|
|
4682
|
|
|
4683 /* If the last rune is already a continuation glyph, fail.
|
|
|
4684 #### We should be able to handle this better. */
|
|
|
4685 {
|
|
|
4686 struct display_block *db = get_display_block_from_line (ddl, TEXT);
|
|
|
4687 if (Dynarr_length (db->runes))
|
|
|
4688 {
|
|
|
4689 struct rune *rb =
|
|
|
4690 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
4691
|
|
|
4692 if (rb->type == RUNE_DGLYPH
|
|
|
4693 && EQ (rb->object.dglyph.glyph, Vcontinuation_glyph))
|
|
|
4694 return 0;
|
|
|
4695 }
|
|
|
4696 }
|
|
|
4697
|
|
|
4698 /* If the line was generated using propagation data, fail. */
|
|
|
4699 if (ddl->used_prop_data)
|
|
|
4700 return 0;
|
|
|
4701
|
|
|
4702 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
|
4703 w->hscroll, &prop, DESIRED_DISP);
|
|
|
4704 ddl->offset = 0;
|
|
|
4705
|
|
|
4706 /* If there is propagated stuff then it is pretty much a
|
|
|
4707 guarantee that more than just the one line is affected. */
|
|
|
4708 if (prop)
|
|
|
4709 {
|
|
|
4710 Dynarr_free (prop);
|
|
|
4711 return 0;
|
|
|
4712 }
|
|
|
4713
|
|
|
4714 /* If the last rune is now a continuation glyph, fail. */
|
|
|
4715 {
|
|
|
4716 struct display_block *db = get_display_block_from_line (ddl, TEXT);
|
|
|
4717 if (Dynarr_length (db->runes))
|
|
|
4718 {
|
|
|
4719 struct rune *rb =
|
|
|
4720 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
4721
|
|
|
4722 if (rb->type == RUNE_DGLYPH
|
|
|
4723 && EQ (rb->object.dglyph.glyph, Vcontinuation_glyph))
|
|
|
4724 return 0;
|
|
|
4725 }
|
|
|
4726 }
|
|
|
4727
|
|
|
4728 /* If any line position parameters have changed or a
|
|
|
4729 cursor has disappeared or disappeared, fail. */
|
|
|
4730 if (cdl->ypos != ddl->ypos
|
|
|
4731 || cdl->ascent != ddl->ascent
|
|
|
4732 || cdl->descent != ddl->descent
|
|
|
4733 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
4734 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1))
|
|
|
4735 {
|
|
|
4736 return 0;
|
|
|
4737 }
|
|
|
4738
|
|
|
4739 /* If the changed area also ends on this line, then we may be in
|
|
|
4740 business. Update everything and return success. */
|
|
|
4741 if (end_unchanged >= ddl->bufpos && end_unchanged <= ddl->end_bufpos)
|
|
|
4742 {
|
|
|
4743 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
4744 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
4745 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp),
|
|
|
4746 w->buffer);
|
|
|
4747 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm),
|
|
|
4748 w->buffer);
|
|
|
4749
|
|
|
4750 if (ddl->cursor_elt != -1)
|
|
|
4751 {
|
|
|
4752 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
4753 w->last_point_y[DESIRED_DISP] = line;
|
|
|
4754 }
|
|
|
4755
|
|
|
4756 redisplay_update_line (w, line, line, 1);
|
|
|
4757 regenerate_modeline (w);
|
|
|
4758
|
|
|
4759 /* #### For now we just flush the cache until this has been
|
|
|
4760 tested. After that is done, this should correct the
|
|
|
4761 cache directly. */
|
|
|
4762 Dynarr_reset (w->line_start_cache);
|
|
|
4763
|
|
|
4764 /* Adjust the extent changed boundaries to remove any
|
|
|
4765 overlap with the buffer changes since we've just
|
|
|
4766 successfully updated that area. */
|
|
|
4767 if (extent_beg_unchanged != -1
|
|
|
4768 && extent_beg_unchanged >= beg_unchanged
|
|
|
4769 && extent_beg_unchanged < end_unchanged)
|
|
|
4770 extent_beg_unchanged = end_unchanged;
|
|
|
4771
|
|
|
4772 if (extent_end_unchanged != -1
|
|
|
4773 && extent_end_unchanged >= beg_unchanged
|
|
|
4774 && extent_end_unchanged < end_unchanged)
|
|
|
4775 extent_end_unchanged = beg_unchanged - 1;
|
|
|
4776
|
|
|
4777 if (extent_end_unchanged <= extent_beg_unchanged)
|
|
|
4778 extent_beg_unchanged = extent_end_unchanged = -1;
|
|
|
4779
|
|
|
4780 /* This could lead to odd results if it fails, but since the
|
|
|
4781 buffer changes update succeeded this probably will to.
|
|
|
4782 We already know that the extent changes start at or after
|
|
|
4783 the line because we checked before entering the loop. */
|
|
|
4784 if (extent_beg_unchanged != -1
|
|
|
4785 && extent_end_unchanged != -1
|
|
|
4786 && ((extent_beg_unchanged < ddl->bufpos)
|
|
|
4787 || (extent_end_unchanged > ddl->end_bufpos)))
|
|
|
4788 {
|
|
|
4789 return
|
|
|
4790 regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
4791 extent_beg_unchanged,
|
|
|
4792 extent_end_unchanged);
|
|
|
4793 }
|
|
|
4794 else
|
|
|
4795 return 1;
|
|
|
4796 }
|
|
|
4797 }
|
|
|
4798
|
|
|
4799 /* Oh, well. */
|
|
|
4800 return 0;
|
|
|
4801 }
|
|
|
4802
|
|
|
4803 /* Given a window and a point, update the given display lines such
|
|
243
|
4804 that point is displayed in the middle of the window.
|
|
185
|
4805 Return the window's new start position. */
|
|
|
4806
|
|
|
4807 static Bufpos
|
|
0
|
4808 regenerate_window_point_center (struct window *w, Bufpos point, int type)
|
|
|
4809 {
|
|
|
4810 Bufpos startp;
|
|
|
4811
|
|
|
4812 /* We need to make sure that the modeline is generated so that the
|
|
|
4813 window height can be calculated correctly. */
|
|
|
4814 ensure_modeline_generated (w, type);
|
|
|
4815
|
|
|
4816 startp = start_with_line_at_pixpos (w, point, window_half_pixpos (w));
|
|
|
4817 regenerate_window (w, startp, point, type);
|
|
|
4818 Fset_marker (w->start[type], make_int (startp), w->buffer);
|
|
|
4819
|
|
185
|
4820 return startp;
|
|
0
|
4821 }
|
|
|
4822
|
|
|
4823 /* Given a window and a set of display lines, return a boolean
|
|
|
4824 indicating whether the given point is contained within. */
|
|
|
4825
|
|
|
4826 static int
|
|
|
4827 point_visible (struct window *w, Bufpos point, int type)
|
|
|
4828 {
|
|
|
4829 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4830 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
4831 int first_line;
|
|
|
4832
|
|
|
4833 if (Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
4834 first_line = 1;
|
|
|
4835 else
|
|
|
4836 first_line = 0;
|
|
|
4837
|
|
|
4838 if (Dynarr_length (dla) > first_line)
|
|
|
4839 {
|
|
|
4840 Bufpos start, end;
|
|
|
4841 struct display_line *dl = Dynarr_atp (dla, first_line);
|
|
|
4842
|
|
|
4843 start = dl->bufpos;
|
|
|
4844 end = BUF_Z (b) - w->window_end_pos[type] - 1;
|
|
|
4845
|
|
|
4846 if (point >= start && point <= end)
|
|
|
4847 {
|
|
|
4848 if (!MINI_WINDOW_P (w) && scroll_on_clipped_lines)
|
|
|
4849 {
|
|
|
4850 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
4851
|
|
|
4852 if (point >= (dl->bufpos + dl->offset)
|
|
|
4853 && point <= (dl->end_bufpos + dl->offset))
|
|
173
|
4854 return !dl->clip;
|
|
0
|
4855 else
|
|
|
4856 return 1;
|
|
|
4857 }
|
|
|
4858 else
|
|
|
4859 return 1;
|
|
|
4860 }
|
|
|
4861 else
|
|
|
4862 return 0;
|
|
|
4863 }
|
|
|
4864 else
|
|
|
4865 return 0;
|
|
|
4866 }
|
|
|
4867
|
|
|
4868 /* Return pixel position the middle of the window, not including the
|
|
|
4869 modeline and any potential horizontal scrollbar. */
|
|
|
4870
|
|
|
4871 int
|
|
|
4872 window_half_pixpos (struct window *w)
|
|
|
4873 {
|
|
173
|
4874 return WINDOW_TEXT_TOP (w) + (WINDOW_TEXT_HEIGHT (w) >> 1);
|
|
0
|
4875 }
|
|
|
4876
|
|
|
4877 /* Return the display line which is currently in the middle of the
|
|
|
4878 window W for display lines TYPE. */
|
|
|
4879
|
|
|
4880 int
|
|
|
4881 line_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
4882 {
|
|
|
4883 display_line_dynarr *dla;
|
|
|
4884 int half;
|
|
|
4885 int elt;
|
|
|
4886 int first_elt = (MINI_WINDOW_P (w) ? 0 : 1);
|
|
|
4887
|
|
|
4888 if (type == CMOTION_DISP)
|
|
|
4889 regenerate_window (w, start, point, type);
|
|
|
4890
|
|
|
4891 dla = window_display_lines (w, type);
|
|
|
4892 half = window_half_pixpos (w);
|
|
|
4893
|
|
|
4894 for (elt = first_elt; elt < Dynarr_length (dla); elt++)
|
|
|
4895 {
|
|
|
4896 struct display_line *dl = Dynarr_atp (dla, elt);
|
|
|
4897 int line_bot = dl->ypos + dl->descent;
|
|
|
4898
|
|
|
4899 if (line_bot > half)
|
|
|
4900 return elt;
|
|
|
4901 }
|
|
|
4902
|
|
|
4903 /* We may not have a line at the middle if the end of the buffer is
|
|
|
4904 being displayed. */
|
|
|
4905 return -1;
|
|
|
4906 }
|
|
|
4907
|
|
|
4908 /* Return a value for point that would place it at the beginning of
|
|
|
4909 the line which is in the middle of the window. */
|
|
|
4910
|
|
|
4911 Bufpos
|
|
|
4912 point_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
4913 {
|
|
|
4914 /* line_at_center will regenerate the display structures, if necessary. */
|
|
|
4915 int line = line_at_center (w, type, start, point);
|
|
|
4916
|
|
|
4917 if (line == -1)
|
|
|
4918 return BUF_ZV (XBUFFER (w->buffer));
|
|
|
4919 else
|
|
|
4920 {
|
|
|
4921 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
4922 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
4923
|
|
|
4924 return dl->bufpos;
|
|
|
4925 }
|
|
|
4926 }
|
|
|
4927
|
|
|
4928 /* For a given window, ensure that the current visual representation
|
|
|
4929 is accurate. */
|
|
|
4930
|
|
|
4931 static void
|
|
|
4932 redisplay_window (Lisp_Object window, int skip_selected)
|
|
|
4933 {
|
|
|
4934 struct window *w = XWINDOW (window);
|
|
|
4935 struct frame *f = XFRAME (w->frame);
|
|
|
4936 struct device *d = XDEVICE (f->device);
|
|
|
4937 Lisp_Object old_buffer = w->buffer;
|
|
|
4938 struct buffer *b;
|
|
|
4939 int echo_active = 0;
|
|
|
4940 int startp = 1;
|
|
|
4941 int pointm;
|
|
151
|
4942 int selected_in_its_frame;
|
|
|
4943 int selected_globally;
|
|
0
|
4944 int skip_output = 0;
|
|
|
4945 int truncation_changed;
|
|
|
4946 int inactive_minibuffer =
|
|
|
4947 (MINI_WINDOW_P (w) &&
|
|
|
4948 (f != device_selected_frame (d)) &&
|
|
|
4949 !is_surrogate_for_selected_frame (f));
|
|
|
4950
|
|
|
4951 /* #### In the new world this function actually does a bunch of
|
|
|
4952 optimizations such as buffer-based scrolling, but none of that is
|
|
|
4953 implemented yet. */
|
|
|
4954
|
|
|
4955 /* If this is a combination window, do its children; that's all.
|
|
|
4956 The selected window is always a leaf so we don't check for
|
|
|
4957 skip_selected here. */
|
|
|
4958 if (!NILP (w->vchild))
|
|
|
4959 {
|
|
|
4960 redisplay_windows (w->vchild, skip_selected);
|
|
|
4961 return;
|
|
|
4962 }
|
|
|
4963 if (!NILP (w->hchild))
|
|
|
4964 {
|
|
|
4965 redisplay_windows (w->hchild, skip_selected);
|
|
|
4966 return;
|
|
|
4967 }
|
|
|
4968
|
|
|
4969 /* Is this window the selected window on its frame? */
|
|
151
|
4970 selected_in_its_frame = (w == XWINDOW (FRAME_SELECTED_WINDOW (f)));
|
|
|
4971 selected_globally =
|
|
|
4972 selected_in_its_frame &&
|
|
|
4973 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
4974 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d &&
|
|
|
4975 XFRAME(DEVICE_SELECTED_FRAME(d)) == f;
|
|
|
4976 if (skip_selected && selected_in_its_frame)
|
|
0
|
4977 return;
|
|
|
4978
|
|
|
4979 /* It is possible that the window is not fully initialized yet. */
|
|
|
4980 if (NILP (w->buffer))
|
|
|
4981 return;
|
|
|
4982
|
|
|
4983 if (MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
4984 {
|
|
|
4985 w->buffer = Vecho_area_buffer;
|
|
|
4986 echo_active = 1;
|
|
|
4987 }
|
|
|
4988
|
|
|
4989 b = XBUFFER (w->buffer);
|
|
|
4990
|
|
|
4991 if (echo_active)
|
|
|
4992 pointm = 1;
|
|
|
4993 else
|
|
|
4994 {
|
|
151
|
4995 if (selected_globally)
|
|
0
|
4996 {
|
|
|
4997 pointm = BUF_PT (b);
|
|
|
4998 }
|
|
|
4999 else
|
|
|
5000 {
|
|
|
5001 pointm = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
5002
|
|
|
5003 if (pointm < BUF_BEGV (b))
|
|
|
5004 pointm = BUF_BEGV (b);
|
|
|
5005 else if (pointm > BUF_ZV (b))
|
|
|
5006 pointm = BUF_ZV (b);
|
|
|
5007 }
|
|
|
5008 }
|
|
|
5009 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm), old_buffer);
|
|
|
5010
|
|
|
5011 /* If the buffer has changed we have to invalid all of our face
|
|
|
5012 cache elements. */
|
|
|
5013 if ((!echo_active && b != window_display_buffer (w))
|
|
|
5014 || !Dynarr_length (w->face_cachels)
|
|
|
5015 || f->faces_changed)
|
|
|
5016 reset_face_cachels (w);
|
|
|
5017 else
|
|
|
5018 mark_face_cachels_as_not_updated (w);
|
|
|
5019
|
|
|
5020 /* Ditto the glyph cache elements. */
|
|
|
5021 if ((!echo_active && b != window_display_buffer (w))
|
|
|
5022 || !Dynarr_length (w->glyph_cachels))
|
|
|
5023 reset_glyph_cachels (w);
|
|
|
5024 else
|
|
|
5025 mark_glyph_cachels_as_not_updated (w);
|
|
|
5026
|
|
|
5027 /* If the marker's buffer is not the window's buffer, then we need
|
|
|
5028 to find a new starting position. */
|
|
|
5029 if (!MINI_WINDOW_P (w)
|
|
|
5030 && !EQ (Fmarker_buffer (w->start[CURRENT_DISP]), w->buffer))
|
|
|
5031 {
|
|
185
|
5032 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
5033
|
|
|
5034 goto regeneration_done;
|
|
|
5035 }
|
|
|
5036
|
|
|
5037 if (echo_active)
|
|
|
5038 startp = 1;
|
|
|
5039 else
|
|
|
5040 {
|
|
|
5041 startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
5042 if (startp < BUF_BEGV (b))
|
|
|
5043 startp = BUF_BEGV (b);
|
|
|
5044 else if (startp > BUF_ZV (b))
|
|
|
5045 startp = BUF_ZV (b);
|
|
|
5046 }
|
|
|
5047 Fset_marker (w->start[DESIRED_DISP], make_int (startp), old_buffer);
|
|
|
5048
|
|
|
5049 truncation_changed = (find_window_mirror (w)->truncate_win !=
|
|
|
5050 window_truncation_on (w));
|
|
|
5051
|
|
|
5052 /* If w->force_start is set, then some function set w->start and we
|
|
|
5053 should display from there and change point, if necessary, to
|
|
|
5054 ensure that it is visible. */
|
|
|
5055 if (w->force_start || inactive_minibuffer)
|
|
|
5056 {
|
|
|
5057 w->force_start = 0;
|
|
|
5058 w->last_modified[DESIRED_DISP] = Qzero;
|
|
|
5059 w->last_facechange[DESIRED_DISP] = Qzero;
|
|
|
5060
|
|
|
5061 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5062
|
|
|
5063 if (!point_visible (w, pointm, DESIRED_DISP) && !inactive_minibuffer)
|
|
|
5064 {
|
|
|
5065 pointm = point_at_center (w, DESIRED_DISP, 0, 0);
|
|
|
5066
|
|
151
|
5067 if (selected_globally)
|
|
0
|
5068 BUF_SET_PT (b, pointm);
|
|
|
5069
|
|
|
5070 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm),
|
|
|
5071 old_buffer);
|
|
|
5072
|
|
|
5073 /* #### BUFU amounts of overkil just to get the cursor
|
|
|
5074 location marked properly. FIX ME FIX ME FIX ME */
|
|
|
5075 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5076 }
|
|
|
5077
|
|
|
5078 goto regeneration_done;
|
|
|
5079 }
|
|
|
5080
|
|
|
5081 /* If nothing has changed since the last redisplay, then we just
|
|
|
5082 need to make sure that point is still visible. */
|
|
|
5083 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
5084 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)
|
|
|
5085 && pointm >= startp
|
|
|
5086 /* This check is to make sure we restore the minibuffer after a
|
|
|
5087 temporary change to the echo area. */
|
|
|
5088 && !(MINI_WINDOW_P (w) && f->buffers_changed)
|
|
|
5089 && !f->frame_changed
|
|
|
5090 && !truncation_changed)
|
|
|
5091 {
|
|
|
5092 /* Check if the cursor has actually moved. */
|
|
|
5093 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5094 && pointm == marker_position (w->last_point[CURRENT_DISP])
|
|
151
|
5095 && selected_globally
|
|
0
|
5096 && !w->windows_changed
|
|
|
5097 && !f->clip_changed
|
|
|
5098 && !f->extents_changed
|
|
|
5099 && !f->faces_changed
|
|
|
5100 && !f->point_changed
|
|
|
5101 && !f->windows_structure_changed)
|
|
|
5102 {
|
|
|
5103 /* If not, we're done. */
|
|
|
5104 if (f->modeline_changed)
|
|
|
5105 regenerate_modeline (w);
|
|
|
5106
|
|
|
5107 skip_output = 1;
|
|
|
5108 goto regeneration_done;
|
|
|
5109 }
|
|
|
5110 else
|
|
|
5111 {
|
|
|
5112 /* If the new point is visible in the redisplay structures,
|
|
|
5113 then let the output update routines handle it, otherwise
|
|
|
5114 do things the hard way. */
|
|
|
5115 if (!w->windows_changed
|
|
|
5116 && !f->clip_changed
|
|
|
5117 && !f->extents_changed
|
|
|
5118 && !f->faces_changed
|
|
|
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
|
|
|
5175 && !f->windows_structure_changed
|
|
|
5176 && !f->frame_changed
|
|
|
5177 && !truncation_changed
|
|
|
5178 && pointm >= startp
|
|
|
5179 && regenerate_window_incrementally (w, startp, pointm))
|
|
|
5180 {
|
|
|
5181 if (f->modeline_changed
|
|
|
5182 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b)
|
|
|
5183 || XINT (w->last_facechange[CURRENT_DISP]) < BUF_FACECHANGE (b))
|
|
|
5184 regenerate_modeline (w);
|
|
|
5185
|
|
|
5186 skip_output = 1;
|
|
|
5187 goto regeneration_done;
|
|
|
5188 }
|
|
|
5189 /* #### This is where a check for structure based scrolling would go. */
|
|
|
5190 /* If all else fails, try just regenerating and see what happens. */
|
|
|
5191 else
|
|
|
5192 {
|
|
|
5193 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5194
|
|
|
5195 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
5196 goto regeneration_done;
|
|
|
5197 }
|
|
|
5198
|
|
|
5199 /* We still haven't gotten the window regenerated with point
|
|
|
5200 visible. Next we try scrolling a little and see if point comes
|
|
|
5201 back onto the screen. */
|
|
|
5202 if (scroll_step)
|
|
|
5203 {
|
|
195
|
5204 int scrolled = scroll_conservatively;
|
|
|
5205 for (; scrolled >= 0; scrolled -= scroll_step)
|
|
|
5206 {
|
|
|
5207 startp = vmotion (w, startp,
|
|
|
5208 (pointm < startp) ? -scroll_step : scroll_step, 0);
|
|
|
5209 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5210
|
|
|
5211 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
5212 goto regeneration_done;
|
|
|
5213 }
|
|
0
|
5214 }
|
|
|
5215
|
|
|
5216 /* We still haven't managed to get the screen drawn with point on
|
|
|
5217 the screen, so just center it and be done with it. */
|
|
185
|
5218 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
0
|
5219
|
|
|
5220
|
|
|
5221 regeneration_done:
|
|
|
5222
|
|
|
5223 /* If the window's frame is changed then reset the current display
|
|
|
5224 lines in order to force a full repaint. */
|
|
|
5225 if (f->frame_changed)
|
|
|
5226 {
|
|
|
5227 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
|
|
|
5228
|
|
|
5229 Dynarr_reset (cla);
|
|
|
5230 }
|
|
|
5231
|
|
|
5232 /* Must do this before calling redisplay_output_window because it
|
|
|
5233 sets some markers on the window. */
|
|
|
5234 if (MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
5235 w->buffer = old_buffer;
|
|
|
5236
|
|
|
5237 /* These also have to be set before calling redisplay_output_window
|
|
|
5238 since it sets the CURRENT_DISP values based on them. */
|
|
|
5239 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
5240 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
5241 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
5242 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
5243
|
|
|
5244 if (!skip_output)
|
|
|
5245 {
|
|
|
5246 Bufpos start = marker_position (w->start[DESIRED_DISP]);
|
|
|
5247 Bufpos end = (w->window_end_pos[DESIRED_DISP] == -1
|
|
|
5248 ? BUF_ZV (b)
|
|
|
5249 : BUF_Z (b) - w->window_end_pos[DESIRED_DISP] - 1);
|
|
|
5250
|
|
|
5251 update_line_start_cache (w, start, end, pointm, 1);
|
|
|
5252 redisplay_output_window (w);
|
|
|
5253 }
|
|
|
5254
|
|
|
5255 /* #### This should be dependent on face changes and will need to be
|
|
|
5256 somewhere else once tty updates occur on a per-frame basis. */
|
|
|
5257 mark_face_cachels_as_clean (w);
|
|
|
5258
|
|
|
5259 w->windows_changed = 0;
|
|
|
5260 }
|
|
|
5261
|
|
|
5262 /* Call buffer_reset_changes for all buffers present in any window
|
|
|
5263 currently visible in all frames on all devices. #### There has to
|
|
|
5264 be a better way to do this. */
|
|
|
5265
|
|
|
5266 static int
|
|
|
5267 reset_buffer_changes_mapfun (struct window *w, void *ignored_closure)
|
|
|
5268 {
|
|
|
5269 buffer_reset_changes (XBUFFER (w->buffer));
|
|
|
5270 return 0;
|
|
|
5271 }
|
|
|
5272
|
|
|
5273 static void
|
|
|
5274 reset_buffer_changes (void)
|
|
|
5275 {
|
|
|
5276 Lisp_Object frmcons, devcons, concons;
|
|
|
5277
|
|
|
5278 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
5279 {
|
|
|
5280 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
5281
|
|
108
|
5282 if (FRAME_REPAINT_P (f))
|
|
0
|
5283 map_windows (f, reset_buffer_changes_mapfun, 0);
|
|
|
5284 }
|
|
|
5285 }
|
|
|
5286
|
|
|
5287 /* Ensure that all windows underneath the given window in the window
|
|
|
5288 hierarchy are correctly displayed. */
|
|
|
5289
|
|
|
5290 static void
|
|
|
5291 redisplay_windows (Lisp_Object window, int skip_selected)
|
|
|
5292 {
|
|
|
5293 for (; !NILP (window) ; window = XWINDOW (window)->next)
|
|
|
5294 {
|
|
|
5295 redisplay_window (window, skip_selected);
|
|
|
5296 }
|
|
|
5297 }
|
|
|
5298
|
|
|
5299 static int
|
|
|
5300 call_redisplay_end_triggers (struct window *w, void *closure)
|
|
|
5301 {
|
|
|
5302 Bufpos lrpos = w->last_redisplay_pos;
|
|
|
5303 w->last_redisplay_pos = 0;
|
|
|
5304 if (!NILP (w->buffer)
|
|
|
5305 && !NILP (w->redisplay_end_trigger)
|
|
|
5306 && lrpos > 0)
|
|
|
5307 {
|
|
|
5308 Bufpos pos;
|
|
|
5309
|
|
|
5310 if (MARKERP (w->redisplay_end_trigger)
|
|
|
5311 && XMARKER (w->redisplay_end_trigger)->buffer != 0)
|
|
|
5312 pos = marker_position (w->redisplay_end_trigger);
|
|
|
5313 else if (INTP (w->redisplay_end_trigger))
|
|
|
5314 pos = XINT (w->redisplay_end_trigger);
|
|
|
5315 else
|
|
|
5316 {
|
|
|
5317 w->redisplay_end_trigger = Qnil;
|
|
|
5318 return 0;
|
|
|
5319 }
|
|
|
5320
|
|
|
5321 if (lrpos >= pos)
|
|
|
5322 {
|
|
|
5323 Lisp_Object window = Qnil;
|
|
|
5324 XSETWINDOW (window, w);
|
|
|
5325 va_run_hook_with_args_in_buffer (XBUFFER (w->buffer),
|
|
|
5326 Qredisplay_end_trigger_functions,
|
|
|
5327 2, window,
|
|
|
5328 w->redisplay_end_trigger);
|
|
|
5329 w->redisplay_end_trigger = Qnil;
|
|
|
5330 }
|
|
|
5331 }
|
|
|
5332
|
|
|
5333 return 0;
|
|
|
5334 }
|
|
|
5335
|
|
|
5336 /* Ensure that all windows on the given frame are correctly displayed. */
|
|
|
5337
|
|
|
5338 static int
|
|
|
5339 redisplay_frame (struct frame *f, int preemption_check)
|
|
|
5340 {
|
|
|
5341 struct device *d = XDEVICE (f->device);
|
|
|
5342
|
|
|
5343 if (preemption_check)
|
|
|
5344 {
|
|
|
5345 /* The preemption check itself takes a lot of time,
|
|
|
5346 so normally don't do it here. We do it if called
|
|
|
5347 from Lisp, though (`redisplay-frame'). */
|
|
|
5348 int preempted;
|
|
|
5349
|
|
|
5350 REDISPLAY_PREEMPTION_CHECK;
|
|
|
5351 if (preempted)
|
|
|
5352 return 1;
|
|
|
5353 }
|
|
|
5354
|
|
|
5355 /* Before we put a hold on frame size changes, attempt to process
|
|
|
5356 any which are already pending. */
|
|
|
5357 if (f->size_change_pending)
|
|
|
5358 change_frame_size (f, f->new_height, f->new_width, 0);
|
|
|
5359
|
|
|
5360 /* The menubar, toolbar, and icon updates must be done before
|
|
|
5361 hold_frame_size_changes is called and we are officially
|
|
|
5362 'in_display'. They may eval lisp code which may call Fsignal.
|
|
|
5363 If in_display is set Fsignal will abort. */
|
|
|
5364
|
|
|
5365 #ifdef HAVE_MENUBARS
|
|
|
5366 /* Update the menubar. It is done first since it could change
|
|
|
5367 the menubar's visibility. This way we avoid having flashing
|
|
|
5368 caused by an Expose event generated by the visibility change
|
|
|
5369 being handled. */
|
|
|
5370 update_frame_menubars (f);
|
|
183
|
5371 #endif /* HAVE_MENUBARS */
|
|
0
|
5372
|
|
|
5373 #ifdef HAVE_TOOLBARS
|
|
|
5374 /* Update the toolbars. */
|
|
|
5375 update_frame_toolbars (f);
|
|
183
|
5376 #endif /* HAVE_TOOLBARS */
|
|
0
|
5377
|
|
|
5378 hold_frame_size_changes ();
|
|
|
5379
|
|
|
5380 /* ----------------- BEGIN CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
5381 /* Within this section, we are defenseless and assume that the
|
|
|
5382 following cannot happen:
|
|
|
5383
|
|
|
5384 1) garbage collection
|
|
|
5385 2) Lisp code evaluation
|
|
|
5386 3) frame size changes
|
|
|
5387
|
|
|
5388 We ensure (3) by calling hold_frame_size_changes(), which
|
|
|
5389 will cause any pending frame size changes to get put on hold
|
|
|
5390 till after the end of the critical section. (1) follows
|
|
|
5391 automatically if (2) is met. #### Unfortunately, there are
|
|
|
5392 some places where Lisp code can be called within this section.
|
|
|
5393 We need to remove them.
|
|
|
5394
|
|
|
5395 If Fsignal() is called during this critical section, we
|
|
|
5396 will abort().
|
|
|
5397
|
|
|
5398 If garbage collection is called during this critical section,
|
|
|
5399 we simply return. #### We should abort instead.
|
|
|
5400
|
|
|
5401 #### If a frame-size change does occur we should probably
|
|
|
5402 actually be preempting redisplay. */
|
|
|
5403
|
|
|
5404 /* If we clear the frame we have to force its contents to be redrawn. */
|
|
|
5405 if (f->clear)
|
|
|
5406 f->frame_changed = 1;
|
|
|
5407
|
|
|
5408 /* Erase the frame before outputting its contents. */
|
|
|
5409 if (f->clear)
|
|
|
5410 DEVMETH (d, clear_frame, (f));
|
|
|
5411
|
|
|
5412 /* Do the selected window first. */
|
|
|
5413 redisplay_window (FRAME_SELECTED_WINDOW (f), 0);
|
|
|
5414
|
|
|
5415 /* Then do the rest. */
|
|
|
5416 redisplay_windows (f->root_window, 1);
|
|
|
5417
|
|
|
5418 /* We now call the output_end routine for tty frames. We delay
|
|
|
5419 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
5420 encapsulation. */
|
|
|
5421 if (FRAME_TTY_P (f))
|
|
|
5422 DEVMETH (d, output_end, (d));
|
|
|
5423
|
|
|
5424 update_frame_title (f);
|
|
|
5425
|
|
185
|
5426 f->buffers_changed = 0;
|
|
|
5427 f->clip_changed = 0;
|
|
|
5428 f->extents_changed = 0;
|
|
|
5429 f->faces_changed = 0;
|
|
|
5430 f->frame_changed = 0;
|
|
|
5431 f->icon_changed = 0;
|
|
|
5432 f->menubar_changed = 0;
|
|
0
|
5433 f->modeline_changed = 0;
|
|
185
|
5434 f->point_changed = 0;
|
|
|
5435 f->toolbar_changed = 0;
|
|
|
5436 f->windows_changed = 0;
|
|
0
|
5437 f->windows_structure_changed = 0;
|
|
|
5438 f->window_face_cache_reset = 0;
|
|
217
|
5439 f->echo_area_garbaged = 0;
|
|
0
|
5440
|
|
|
5441 f->clear = 0;
|
|
|
5442
|
|
|
5443 if (!f->size_change_pending)
|
|
|
5444 f->size_changed = 0;
|
|
|
5445
|
|
|
5446 /* ----------------- END CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
5447
|
|
|
5448 /* Allow frame size changes to occur again.
|
|
|
5449
|
|
|
5450 #### what happens if changes to other frames happen? */
|
|
|
5451 unhold_one_frame_size_changes (f);
|
|
|
5452
|
|
|
5453 map_windows (f, call_redisplay_end_triggers, 0);
|
|
|
5454 return 0;
|
|
|
5455 }
|
|
|
5456
|
|
|
5457 /* Ensure that all frames on the given device are correctly displayed. */
|
|
|
5458
|
|
|
5459 static int
|
|
|
5460 redisplay_device (struct device *d)
|
|
|
5461 {
|
|
|
5462 Lisp_Object frame, frmcons;
|
|
|
5463 int preempted = 0;
|
|
|
5464 int size_change_failed = 0;
|
|
|
5465 struct frame *f;
|
|
|
5466
|
|
|
5467 if (DEVICE_STREAM_P (d)) /* nothing to do */
|
|
|
5468 return 0;
|
|
|
5469
|
|
|
5470 /* It is possible that redisplay has been called before the
|
|
|
5471 device is fully initialized. If so then continue with the
|
|
|
5472 next device. */
|
|
|
5473 if (NILP (DEVICE_SELECTED_FRAME (d)))
|
|
|
5474 return 0;
|
|
|
5475
|
|
|
5476 REDISPLAY_PREEMPTION_CHECK;
|
|
|
5477 if (preempted)
|
|
|
5478 return 1;
|
|
|
5479
|
|
|
5480 /* Always do the selected frame first. */
|
|
|
5481 frame = DEVICE_SELECTED_FRAME (d);
|
|
183
|
5482
|
|
0
|
5483 f = XFRAME (frame);
|
|
|
5484
|
|
|
5485 if (f->icon_changed || f->windows_changed)
|
|
|
5486 update_frame_icon (f);
|
|
|
5487
|
|
108
|
5488 if (FRAME_REPAINT_P (f))
|
|
0
|
5489 {
|
|
185
|
5490 if (f->buffers_changed || f->clip_changed || f->extents_changed ||
|
|
|
5491 f->faces_changed || f->frame_changed || f->menubar_changed ||
|
|
|
5492 f->modeline_changed || f->point_changed || f->size_changed ||
|
|
|
5493 f->toolbar_changed || f->windows_changed ||
|
|
|
5494 f->windows_structure_changed)
|
|
0
|
5495 {
|
|
|
5496 preempted = redisplay_frame (f, 0);
|
|
|
5497 }
|
|
|
5498
|
|
|
5499 if (preempted)
|
|
|
5500 return 1;
|
|
|
5501
|
|
|
5502 /* If the frame redisplay did not get preempted, then this flag
|
|
|
5503 should have gotten set to 0. It might be possible for that
|
|
|
5504 not to happen if a size change event were to occur at an odd
|
|
|
5505 time. To make sure we don't miss anything we simply don't
|
|
|
5506 reset the top level flags until the condition ends up being
|
|
|
5507 in the right state. */
|
|
|
5508 if (f->size_changed)
|
|
|
5509 size_change_failed = 1;
|
|
|
5510 }
|
|
|
5511
|
|
|
5512 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
5513 {
|
|
|
5514 f = XFRAME (XCAR (frmcons));
|
|
|
5515
|
|
|
5516 if (f == XFRAME (DEVICE_SELECTED_FRAME (d)))
|
|
|
5517 continue;
|
|
|
5518
|
|
|
5519 if (f->icon_changed || f->windows_changed)
|
|
|
5520 update_frame_icon (f);
|
|
|
5521
|
|
108
|
5522 if (FRAME_REPAINT_P (f))
|
|
0
|
5523 {
|
|
185
|
5524 if (f->buffers_changed || f->clip_changed || f->extents_changed ||
|
|
|
5525 f->faces_changed || f->frame_changed || f->menubar_changed ||
|
|
|
5526 f->modeline_changed || f->point_changed || f->size_changed ||
|
|
|
5527 f->toolbar_changed || f->windows_changed ||
|
|
|
5528 f->windows_structure_changed)
|
|
0
|
5529 {
|
|
|
5530 preempted = redisplay_frame (f, 0);
|
|
|
5531 }
|
|
|
5532
|
|
|
5533 if (preempted)
|
|
|
5534 return 1;
|
|
|
5535
|
|
|
5536 if (f->size_change_pending)
|
|
|
5537 size_change_failed = 1;
|
|
|
5538 }
|
|
|
5539 }
|
|
|
5540
|
|
|
5541 /* If we get here then we redisplayed all of our frames without
|
|
|
5542 getting preempted so mark ourselves as clean. */
|
|
185
|
5543 d->buffers_changed = 0;
|
|
|
5544 d->clip_changed = 0;
|
|
|
5545 d->extents_changed = 0;
|
|
|
5546 d->faces_changed = 0;
|
|
|
5547 d->frame_changed = 0;
|
|
|
5548 d->icon_changed = 0;
|
|
|
5549 d->menubar_changed = 0;
|
|
0
|
5550 d->modeline_changed = 0;
|
|
185
|
5551 d->point_changed = 0;
|
|
|
5552 d->toolbar_changed = 0;
|
|
|
5553 d->windows_changed = 0;
|
|
0
|
5554 d->windows_structure_changed = 0;
|
|
|
5555
|
|
|
5556 if (!size_change_failed)
|
|
|
5557 d->size_changed = 0;
|
|
|
5558
|
|
|
5559 return 0;
|
|
|
5560 }
|
|
|
5561
|
|
|
5562 static Lisp_Object
|
|
|
5563 restore_profiling_redisplay_flag (Lisp_Object val)
|
|
|
5564 {
|
|
|
5565 profiling_redisplay_flag = XINT (val);
|
|
|
5566 return Qnil;
|
|
|
5567 }
|
|
|
5568
|
|
|
5569 /* Ensure that all windows on all frames on all devices are displaying
|
|
|
5570 the current contents of their respective buffers. */
|
|
|
5571
|
|
|
5572 static void
|
|
|
5573 redisplay_without_hooks (void)
|
|
|
5574 {
|
|
|
5575 Lisp_Object devcons, concons;
|
|
|
5576 int size_change_failed = 0;
|
|
|
5577 int count = specpdl_depth ();
|
|
|
5578
|
|
|
5579 if (profiling_active)
|
|
|
5580 {
|
|
|
5581 record_unwind_protect (restore_profiling_redisplay_flag,
|
|
|
5582 make_int (profiling_redisplay_flag));
|
|
|
5583 profiling_redisplay_flag = 1;
|
|
|
5584 }
|
|
|
5585
|
|
|
5586 if (asynch_device_change_pending)
|
|
|
5587 handle_asynch_device_change ();
|
|
|
5588
|
|
185
|
5589 if (!buffers_changed && !clip_changed && !extents_changed &&
|
|
|
5590 !faces_changed && !frame_changed && !icon_changed &&
|
|
|
5591 !menubar_changed && !modeline_changed && !point_changed &&
|
|
|
5592 !size_changed && !toolbar_changed && !windows_changed &&
|
|
|
5593 !windows_structure_changed && !disable_preemption &&
|
|
|
5594 preemption_count < max_preempts)
|
|
0
|
5595 goto done;
|
|
|
5596
|
|
|
5597 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
5598 {
|
|
|
5599 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
5600 int preempted;
|
|
|
5601
|
|
185
|
5602 if (d->buffers_changed || d->clip_changed || d->extents_changed ||
|
|
|
5603 d->faces_changed || d->frame_changed || d->icon_changed ||
|
|
|
5604 d->menubar_changed || d->modeline_changed || d->point_changed ||
|
|
|
5605 d->size_changed || d->toolbar_changed || d->windows_changed ||
|
|
|
5606 d->windows_structure_changed)
|
|
0
|
5607 {
|
|
|
5608 preempted = redisplay_device (d);
|
|
|
5609
|
|
|
5610 if (preempted)
|
|
|
5611 {
|
|
|
5612 preemption_count++;
|
|
|
5613 RESET_CHANGED_SET_FLAGS;
|
|
|
5614 goto done;
|
|
|
5615 }
|
|
|
5616
|
|
|
5617 /* See comment in redisplay_device. */
|
|
|
5618 if (d->size_changed)
|
|
|
5619 size_change_failed = 1;
|
|
|
5620 }
|
|
|
5621 }
|
|
|
5622 preemption_count = 0;
|
|
|
5623
|
|
|
5624 /* Mark redisplay as accurate */
|
|
185
|
5625 buffers_changed = 0;
|
|
|
5626 clip_changed = 0;
|
|
|
5627 extents_changed = 0;
|
|
|
5628 frame_changed = 0;
|
|
|
5629 icon_changed = 0;
|
|
|
5630 menubar_changed = 0;
|
|
0
|
5631 modeline_changed = 0;
|
|
185
|
5632 point_changed = 0;
|
|
|
5633 toolbar_changed = 0;
|
|
|
5634 windows_changed = 0;
|
|
0
|
5635 windows_structure_changed = 0;
|
|
|
5636 RESET_CHANGED_SET_FLAGS;
|
|
|
5637
|
|
|
5638 if (faces_changed)
|
|
|
5639 {
|
|
|
5640 mark_all_faces_as_clean ();
|
|
|
5641 faces_changed = 0;
|
|
|
5642 }
|
|
|
5643
|
|
|
5644 if (!size_change_failed)
|
|
|
5645 size_changed = 0;
|
|
|
5646
|
|
|
5647 reset_buffer_changes ();
|
|
|
5648
|
|
|
5649 done:
|
|
|
5650 unbind_to (count, Qnil);
|
|
|
5651 }
|
|
|
5652
|
|
|
5653 void
|
|
|
5654 redisplay (void)
|
|
|
5655 {
|
|
|
5656 if (last_display_warning_tick != display_warning_tick &&
|
|
|
5657 !inhibit_warning_display)
|
|
|
5658 {
|
|
|
5659 /* If an error occurs during this function, oh well.
|
|
|
5660 If we report another warning, we could get stuck in an
|
|
|
5661 infinite loop reporting warnings. */
|
|
|
5662 call0_trapping_errors (0, Qdisplay_warning_buffer);
|
|
|
5663 last_display_warning_tick = display_warning_tick;
|
|
|
5664 }
|
|
|
5665 /* The run_hook_trapping_errors functions are smart enough not
|
|
|
5666 to do any evalling if the hook function is empty, so there
|
|
|
5667 should not be any significant time loss. All places in the
|
|
|
5668 C code that call redisplay() are prepared to handle GCing,
|
|
|
5669 so we should be OK. */
|
|
|
5670 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
5671 run_hook_trapping_errors ("Error in pre-redisplay-hook",
|
|
|
5672 Qpre_redisplay_hook);
|
|
183
|
5673 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
5674
|
|
|
5675 redisplay_without_hooks ();
|
|
|
5676
|
|
|
5677 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
5678 run_hook_trapping_errors ("Error in post-redisplay-hook",
|
|
|
5679 Qpost_redisplay_hook);
|
|
183
|
5680 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
5681 }
|
|
|
5682
|
|
211
|
5683
|
|
|
5684 static char window_line_number_buf[16];
|
|
|
5685
|
|
|
5686 /* Efficiently determine the window line number, and return a pointer
|
|
|
5687 to its printed representation. Do this regardless of whether
|
|
|
5688 line-number-mode is on. The first line in the buffer is counted as
|
|
|
5689 1. If narrowing is in effect, the lines are counted from the
|
|
|
5690 beginning of the visible portion of the buffer. */
|
|
0
|
5691 static char *
|
|
|
5692 window_line_number (struct window *w, int type)
|
|
|
5693 {
|
|
|
5694 struct device *d = XDEVICE (XFRAME (w->frame)->device);
|
|
|
5695 struct buffer *b = XBUFFER (w->buffer);
|
|
211
|
5696 Bufpos pos =
|
|
151
|
5697 (((w == XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame (d)))) &&
|
|
|
5698 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
5699 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d &&
|
|
|
5700 EQ(DEVICE_SELECTED_FRAME(d), w->frame))
|
|
0
|
5701 ? BUF_PT (b)
|
|
|
5702 : marker_position (w->pointm[type]));
|
|
211
|
5703 EMACS_INT line;
|
|
|
5704
|
|
|
5705 line = buffer_line_number (b, pos, 1);
|
|
|
5706
|
|
|
5707 sprintf (window_line_number_buf, "%d", line + 1);
|
|
0
|
5708
|
|
173
|
5709 return window_line_number_buf;
|
|
0
|
5710 }
|
|
|
5711
|
|
211
|
5712
|
|
0
|
5713 /* Given a character representing an object in a modeline
|
|
|
5714 specification, return a string (stored into the global array
|
|
|
5715 `mode_spec_bufbyte_string') with the information that object
|
|
|
5716 represents.
|
|
|
5717
|
|
|
5718 This function is largely unchanged from previous versions of the
|
|
|
5719 redisplay engine. */
|
|
|
5720
|
|
|
5721 static void
|
|
|
5722 decode_mode_spec (struct window *w, Emchar spec, int type)
|
|
|
5723 {
|
|
|
5724 Lisp_Object obj = Qnil;
|
|
|
5725 CONST char *str = NULL;
|
|
|
5726 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5727
|
|
|
5728 Dynarr_reset (mode_spec_bufbyte_string);
|
|
|
5729
|
|
|
5730 switch (spec)
|
|
|
5731 {
|
|
|
5732 /* print buffer name */
|
|
|
5733 case 'b':
|
|
|
5734 obj = b->name;
|
|
|
5735 break;
|
|
|
5736
|
|
|
5737 /* print visited file name */
|
|
|
5738 case 'f':
|
|
|
5739 obj = b->filename;
|
|
|
5740 break;
|
|
|
5741
|
|
|
5742 /* print the current column */
|
|
|
5743 case 'c':
|
|
|
5744 {
|
|
72
|
5745 int col = current_column (b) + (column_number_start_at_one != 0);
|
|
0
|
5746 int temp = col;
|
|
|
5747 int size = 2;
|
|
|
5748 char *buf;
|
|
|
5749
|
|
|
5750 while (temp >= 10)
|
|
|
5751 {
|
|
|
5752 temp /= 10;
|
|
|
5753 size++;
|
|
|
5754 }
|
|
|
5755
|
|
185
|
5756 buf = alloca_array (char, size);
|
|
0
|
5757 sprintf (buf, "%d", col);
|
|
|
5758
|
|
|
5759 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
|
5760 (CONST Bufbyte *) buf, strlen (buf));
|
|
|
5761
|
|
|
5762 goto decode_mode_spec_done;
|
|
|
5763 }
|
|
|
5764
|
|
70
|
5765 #ifdef MULE
|
|
|
5766 /* print the file coding system */
|
|
|
5767 case 'C':
|
|
|
5768 {
|
|
110
|
5769 Lisp_Object codesys = b->buffer_file_coding_system;
|
|
70
|
5770 /* Be very careful here not to get an error. */
|
|
|
5771 if (NILP (codesys) || SYMBOLP (codesys) || CODING_SYSTEMP (codesys))
|
|
|
5772 {
|
|
|
5773 codesys = Ffind_coding_system (codesys);
|
|
|
5774 if (CODING_SYSTEMP (codesys))
|
|
|
5775 obj = Fcoding_system_property (codesys, Qmnemonic);
|
|
|
5776 }
|
|
|
5777 }
|
|
|
5778 break;
|
|
183
|
5779 #endif /* MULE */
|
|
16
|
5780
|
|
0
|
5781 /* print the current line number */
|
|
|
5782 case 'l':
|
|
|
5783 str = window_line_number (w, type);
|
|
|
5784 break;
|
|
|
5785
|
|
|
5786 /* print value of mode-name (obsolete) */
|
|
|
5787 case 'm':
|
|
|
5788 obj = b->mode_name;
|
|
|
5789 break;
|
|
|
5790
|
|
149
|
5791 /* print hyphen and frame number, if != 1 */
|
|
|
5792 case 'N':
|
|
|
5793 #ifdef HAVE_TTY
|
|
|
5794 {
|
|
|
5795 struct frame *f = XFRAME (w->frame);
|
|
|
5796 if (FRAME_TTY_P (f) && f->order_count > 1)
|
|
|
5797 {
|
|
185
|
5798 str = (CONST char *) alloca (10);
|
|
149
|
5799 sprintf (str, "-%d", f->order_count);
|
|
|
5800 }
|
|
|
5801 }
|
|
183
|
5802 #endif /* HAVE_TTY */
|
|
149
|
5803 break;
|
|
|
5804
|
|
0
|
5805 /* print Narrow if appropriate */
|
|
|
5806 case 'n':
|
|
|
5807 if (BUF_BEGV (b) > BUF_BEG (b)
|
|
|
5808 || BUF_ZV (b) < BUF_Z (b))
|
|
|
5809 str = " Narrow";
|
|
|
5810 break;
|
|
|
5811
|
|
|
5812 /* print %, * or hyphen, if buffer is read-only, modified or neither */
|
|
|
5813 case '*':
|
|
|
5814 str = (!NILP (b->read_only)
|
|
|
5815 ? "%"
|
|
|
5816 : ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
5817 ? "*"
|
|
|
5818 : "-"));
|
|
|
5819 break;
|
|
|
5820
|
|
|
5821 /* print * or hyphen -- XEmacs change to allow a buffer to be
|
|
|
5822 read-only but still indicate whether it is modified. */
|
|
|
5823 case '+':
|
|
|
5824 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
5825 ? "*"
|
|
|
5826 : (!NILP (b->read_only)
|
|
|
5827 ? "%"
|
|
|
5828 : "-"));
|
|
|
5829 break;
|
|
|
5830
|
|
|
5831 /* #### defined in 19.29 decode_mode_spec, but not in
|
|
|
5832 modeline-format doc string. */
|
|
|
5833 /* This differs from %* in that it ignores read-only-ness. */
|
|
|
5834 case '&':
|
|
|
5835 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
5836 ? "*"
|
|
|
5837 : "-");
|
|
|
5838 break;
|
|
|
5839
|
|
|
5840 /* print process status */
|
|
|
5841 case 's':
|
|
|
5842 obj = Fget_buffer_process (w->buffer);
|
|
|
5843 if (NILP (obj))
|
|
|
5844 str = GETTEXT ("no process");
|
|
|
5845 else
|
|
|
5846 obj = Fsymbol_name (Fprocess_status (obj));
|
|
|
5847 break;
|
|
|
5848
|
|
227
|
5849 /* Print name of selected frame. */
|
|
0
|
5850 case 'S':
|
|
|
5851 obj = XFRAME (w->frame)->name;
|
|
|
5852 break;
|
|
|
5853
|
|
|
5854 /* indicate TEXT or BINARY */
|
|
|
5855 case 't':
|
|
209
|
5856 #ifdef DOS_NT
|
|
0
|
5857 str = NILP (b->buffer_file_type) ? "T" : "B";
|
|
209
|
5858 #else /* not DOS_NT */
|
|
0
|
5859 str = "T";
|
|
209
|
5860 #endif /* not DOS_NT */
|
|
10
|
5861 break;
|
|
0
|
5862
|
|
|
5863 /* print percent of buffer above top of window, or Top, Bot or All */
|
|
|
5864 case 'p':
|
|
|
5865 {
|
|
|
5866 Bufpos pos = marker_position (w->start[type]);
|
|
|
5867 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
5868
|
|
|
5869 /* This had better be while the desired lines are being done. */
|
|
|
5870 if (w->window_end_pos[type] <= BUF_Z (b) - BUF_ZV (b))
|
|
|
5871 {
|
|
|
5872 if (pos <= BUF_BEGV (b))
|
|
|
5873 str = "All";
|
|
|
5874 else
|
|
|
5875 str = "Bottom";
|
|
|
5876 }
|
|
|
5877 else if (pos <= BUF_BEGV (b))
|
|
|
5878 str = "Top";
|
|
|
5879 else
|
|
|
5880 {
|
|
|
5881 /* This hard limit is ok since the string it will hold has a
|
|
|
5882 fixed maximum length of 3. But just to be safe... */
|
|
|
5883 char buf[10];
|
|
|
5884
|
|
|
5885 total = ((pos - BUF_BEGV (b)) * 100 + total - 1) / total;
|
|
|
5886
|
|
|
5887 /* We can't normally display a 3-digit number, so get us a
|
|
|
5888 2-digit number that is close. */
|
|
|
5889 if (total == 100)
|
|
|
5890 total = 99;
|
|
|
5891
|
|
|
5892 sprintf (buf, "%2d%%", total);
|
|
|
5893 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) buf,
|
|
|
5894 strlen (buf));
|
|
|
5895
|
|
|
5896 goto decode_mode_spec_done;
|
|
|
5897 }
|
|
|
5898 break;
|
|
|
5899 }
|
|
|
5900
|
|
|
5901 /* print percent of buffer above bottom of window, perhaps plus
|
|
|
5902 Top, or print Bottom or All */
|
|
|
5903 case 'P':
|
|
|
5904 {
|
|
|
5905 Bufpos toppos = marker_position (w->start[type]);
|
|
|
5906 Bufpos botpos = BUF_Z (b) - w->window_end_pos[type];
|
|
|
5907 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
5908
|
|
10
|
5909 /* botpos is only accurate as of the last redisplay, so we can
|
|
16
|
5910 only treat it as a hint. In particular, after erase-buffer,
|
|
|
5911 botpos may be negative. */
|
|
10
|
5912 if (botpos < toppos)
|
|
|
5913 botpos = toppos;
|
|
183
|
5914
|
|
0
|
5915 if (botpos >= BUF_ZV (b))
|
|
|
5916 {
|
|
|
5917 if (toppos <= BUF_BEGV (b))
|
|
|
5918 str = "All";
|
|
|
5919 else
|
|
|
5920 str = "Bottom";
|
|
|
5921 }
|
|
|
5922 else
|
|
|
5923 {
|
|
|
5924 /* This hard limit is ok since the string it will hold has a
|
|
|
5925 fixed maximum length of around 6. But just to be safe... */
|
|
|
5926 char buf[10];
|
|
|
5927
|
|
|
5928 total = ((botpos - BUF_BEGV (b)) * 100 + total - 1) / total;
|
|
|
5929
|
|
|
5930 /* We can't normally display a 3-digit number, so get us a
|
|
|
5931 2-digit number that is close. */
|
|
|
5932 if (total == 100)
|
|
|
5933 total = 99;
|
|
|
5934
|
|
|
5935 if (toppos <= BUF_BEGV (b))
|
|
|
5936 sprintf (buf, "Top%2d%%", total);
|
|
|
5937 else
|
|
|
5938 sprintf (buf, "%2d%%", total);
|
|
|
5939
|
|
|
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 % */
|
|
|
5949 case '%':
|
|
|
5950 str = "%";
|
|
|
5951 break;
|
|
|
5952
|
|
|
5953 /* print one [ for each recursive editing level. */
|
|
|
5954 case '[':
|
|
|
5955 {
|
|
|
5956 int i;
|
|
|
5957
|
|
|
5958 if (command_loop_level > 5)
|
|
|
5959 {
|
|
|
5960 str = "[[[... ";
|
|
|
5961 break;
|
|
|
5962 }
|
|
|
5963
|
|
|
5964 for (i = 0; i < command_loop_level; i++)
|
|
|
5965 Dynarr_add (mode_spec_bufbyte_string, '[');
|
|
|
5966
|
|
|
5967 goto decode_mode_spec_done;
|
|
|
5968 }
|
|
|
5969
|
|
|
5970 /* print one ] for each recursive editing level. */
|
|
|
5971 case ']':
|
|
|
5972 {
|
|
|
5973 int i;
|
|
|
5974
|
|
|
5975 if (command_loop_level > 5)
|
|
|
5976 {
|
|
|
5977 str = "...]]]";
|
|
|
5978 break;
|
|
|
5979 }
|
|
|
5980
|
|
|
5981 for (i = 0; i < command_loop_level; i++)
|
|
|
5982 Dynarr_add (mode_spec_bufbyte_string, ']');
|
|
|
5983
|
|
|
5984 goto decode_mode_spec_done;
|
|
|
5985 }
|
|
|
5986
|
|
|
5987 /* print infinitely many dashes -- handle at top level now */
|
|
|
5988 case '-':
|
|
|
5989 break;
|
|
|
5990
|
|
|
5991 }
|
|
|
5992
|
|
|
5993 if (STRINGP (obj))
|
|
16
|
5994 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
|
5995 XSTRING_DATA (obj),
|
|
|
5996 XSTRING_LENGTH (obj));
|
|
0
|
5997 else if (str)
|
|
|
5998 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) str, strlen (str));
|
|
|
5999
|
|
|
6000 decode_mode_spec_done:
|
|
|
6001 Dynarr_add (mode_spec_bufbyte_string, '\0');
|
|
|
6002 }
|
|
|
6003
|
|
16
|
6004 /* Given a display line, free all of its data structures. */
|
|
0
|
6005
|
|
|
6006 static void
|
|
|
6007 free_display_line (struct display_line *dl)
|
|
|
6008 {
|
|
|
6009 int block;
|
|
|
6010
|
|
|
6011 if (dl->display_blocks)
|
|
|
6012 {
|
|
|
6013 for (block = 0; block < Dynarr_largest (dl->display_blocks); block++)
|
|
|
6014 {
|
|
|
6015 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
|
|
|
6016
|
|
|
6017 Dynarr_free (db->runes);
|
|
|
6018 }
|
|
|
6019
|
|
|
6020 Dynarr_free (dl->display_blocks);
|
|
185
|
6021 dl->display_blocks = NULL;
|
|
0
|
6022 }
|
|
|
6023
|
|
|
6024 if (dl->left_glyphs)
|
|
|
6025 {
|
|
|
6026 Dynarr_free (dl->left_glyphs);
|
|
185
|
6027 dl->left_glyphs = NULL;
|
|
0
|
6028 }
|
|
|
6029
|
|
|
6030 if (dl->right_glyphs)
|
|
|
6031 {
|
|
|
6032 Dynarr_free (dl->right_glyphs);
|
|
185
|
6033 dl->right_glyphs = NULL;
|
|
0
|
6034 }
|
|
|
6035 }
|
|
|
6036
|
|
|
6037
|
|
|
6038 /* Given an array of display lines, free them and all data structures
|
|
|
6039 contained within them. */
|
|
|
6040
|
|
|
6041 static void
|
|
|
6042 free_display_lines (display_line_dynarr *dla)
|
|
|
6043 {
|
|
|
6044 int line;
|
|
|
6045
|
|
|
6046 for (line = 0; line < Dynarr_largest (dla); line++)
|
|
|
6047 {
|
|
|
6048 free_display_line (Dynarr_atp (dla, line));
|
|
|
6049 }
|
|
|
6050
|
|
|
6051 Dynarr_free (dla);
|
|
|
6052 }
|
|
|
6053
|
|
|
6054 /* Call internal free routine for each set of display lines. */
|
|
|
6055
|
|
|
6056 void
|
|
|
6057 free_display_structs (struct window_mirror *mir)
|
|
|
6058 {
|
|
|
6059 if (mir->current_display_lines)
|
|
|
6060 {
|
|
|
6061 free_display_lines (mir->current_display_lines);
|
|
|
6062 mir->current_display_lines = 0;
|
|
|
6063 }
|
|
|
6064
|
|
|
6065 if (mir->desired_display_lines)
|
|
|
6066 {
|
|
|
6067 free_display_lines (mir->desired_display_lines);
|
|
|
6068 mir->desired_display_lines = 0;
|
|
|
6069 }
|
|
|
6070 }
|
|
|
6071
|
|
|
6072
|
|
|
6073 static void
|
|
185
|
6074 mark_glyph_block_dynarr (glyph_block_dynarr *gba, void (*markobj) (Lisp_Object))
|
|
|
6075 {
|
|
|
6076 if (gba)
|
|
|
6077 {
|
|
|
6078 glyph_block *gb = Dynarr_atp (gba, 0);
|
|
|
6079 glyph_block *gb_last = Dynarr_atp (gba, Dynarr_length (gba));
|
|
|
6080
|
|
|
6081 for (; gb < gb_last; gb++)
|
|
|
6082 {
|
|
|
6083 if (!NILP (gb->glyph)) ((markobj) (gb->glyph));
|
|
|
6084 if (!NILP (gb->extent)) ((markobj) (gb->extent));
|
|
|
6085 }
|
|
|
6086 }
|
|
|
6087 }
|
|
|
6088
|
|
|
6089 static void
|
|
|
6090 mark_redisplay_structs (display_line_dynarr *dla, void (*markobj) (Lisp_Object))
|
|
0
|
6091 {
|
|
185
|
6092 display_line *dl = Dynarr_atp (dla, 0);
|
|
|
6093 display_line *dl_last = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
6094
|
|
|
6095 for (; dl < dl_last; dl++)
|
|
|
6096 {
|
|
|
6097 display_block_dynarr *dba = dl->display_blocks;
|
|
|
6098 display_block *db = Dynarr_atp (dba, 0);
|
|
|
6099 display_block *db_last = Dynarr_atp (dba, Dynarr_length (dba));
|
|
|
6100
|
|
|
6101 for (; db < db_last; db++)
|
|
|
6102 {
|
|
|
6103 rune_dynarr *ra = db->runes;
|
|
|
6104 rune *r = Dynarr_atp (ra, 0);
|
|
|
6105 rune *r_last = Dynarr_atp (ra, Dynarr_length (ra));
|
|
|
6106
|
|
|
6107 for (; r < r_last; r++)
|
|
0
|
6108 {
|
|
185
|
6109 if (r->type == RUNE_DGLYPH)
|
|
0
|
6110 {
|
|
185
|
6111 if (!NILP (r->object.dglyph.glyph))
|
|
|
6112 ((markobj) (r->object.dglyph.glyph));
|
|
|
6113 if (!NILP (r->object.dglyph.extent))
|
|
|
6114 ((markobj) (r->object.dglyph.extent));
|
|
0
|
6115 }
|
|
|
6116 }
|
|
|
6117 }
|
|
|
6118
|
|
185
|
6119 mark_glyph_block_dynarr (dl->left_glyphs, markobj);
|
|
|
6120 mark_glyph_block_dynarr (dl->right_glyphs, markobj);
|
|
0
|
6121 }
|
|
|
6122 }
|
|
|
6123
|
|
|
6124 static void
|
|
|
6125 mark_window_mirror (struct window_mirror *mir, void (*markobj)(Lisp_Object))
|
|
|
6126 {
|
|
|
6127 mark_redisplay_structs (mir->current_display_lines, markobj);
|
|
|
6128 mark_redisplay_structs (mir->desired_display_lines, markobj);
|
|
|
6129
|
|
|
6130 if (mir->next)
|
|
|
6131 mark_window_mirror (mir->next, markobj);
|
|
|
6132
|
|
|
6133 if (mir->hchild)
|
|
|
6134 mark_window_mirror (mir->hchild, markobj);
|
|
|
6135 else if (mir->vchild)
|
|
|
6136 mark_window_mirror (mir->vchild, markobj);
|
|
|
6137 }
|
|
|
6138
|
|
|
6139 void
|
|
|
6140 mark_redisplay (void (*markobj)(Lisp_Object))
|
|
|
6141 {
|
|
|
6142 Lisp_Object frmcons, devcons, concons;
|
|
|
6143
|
|
|
6144 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
6145 {
|
|
|
6146 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
6147 update_frame_window_mirror (f);
|
|
|
6148 mark_window_mirror (f->root_mirror, markobj);
|
|
|
6149 }
|
|
|
6150 }
|
|
|
6151
|
|
|
6152 /*****************************************************************************
|
|
|
6153 Line Start Cache Description and Rationale
|
|
|
6154
|
|
|
6155 The traditional scrolling code in Emacs breaks in a variable height world.
|
|
|
6156 It depends on the key assumption that the number of lines that can be
|
|
|
6157 displayed at any given time is fixed. This led to a complete separation
|
|
|
6158 of the scrolling code from the redisplay code. In order to fully support
|
|
|
6159 variable height lines, the scrolling code must actually be tightly
|
|
|
6160 integrated with redisplay. Only redisplay can determine how many lines
|
|
|
6161 will be displayed on a screen for any given starting point.
|
|
|
6162
|
|
|
6163 What is ideally wanted is a complete list of the starting buffer position
|
|
|
6164 for every possible display line of a buffer along with the height of that
|
|
|
6165 display line. Maintaining such a full list would be very expensive. We
|
|
|
6166 settle for having it include information for all areas which we happen to
|
|
|
6167 generate anyhow (i.e. the region currently being displayed) and for those
|
|
|
6168 areas we need to work with.
|
|
|
6169
|
|
|
6170 In order to ensure that the cache accurately represents what redisplay
|
|
|
6171 would actually show, it is necessary to invalidate it in many situations.
|
|
|
6172 If the buffer changes, the starting positions may no longer be correct.
|
|
|
6173 If a face or an extent has changed then the line heights may have altered.
|
|
|
6174 These events happen frequently enough that the cache can end up being
|
|
|
6175 constantly disabled. With this potentially constant invalidation when is
|
|
|
6176 the cache ever useful?
|
|
|
6177
|
|
|
6178 Even if the cache is invalidated before every single usage, it is
|
|
|
6179 necessary. Scrolling often requires knowledge about display lines which
|
|
|
6180 are actually above or below the visible region. The cache provides a
|
|
|
6181 convenient light-weight method of storing this information for multiple
|
|
|
6182 display regions. This knowledge is necessary for the scrolling code to
|
|
|
6183 always obey the First Golden Rule of Redisplay.
|
|
|
6184
|
|
|
6185 If the cache already contains all of the information that the scrolling
|
|
|
6186 routines happen to need so that it doesn't have to go generate it, then we
|
|
|
6187 are able to obey the Third Golden Rule of Redisplay. The first thing we
|
|
|
6188 do to help out the cache is to always add the displayed region. This
|
|
|
6189 region had to be generated anyway, so the cache ends up getting the
|
|
|
6190 information basically for free. In those cases where a user is simply
|
|
|
6191 scrolling around viewing a buffer there is a high probability that this is
|
|
|
6192 sufficient to always provide the needed information. The second thing we
|
|
|
6193 can do is be smart about invalidating the cache.
|
|
|
6194
|
|
|
6195 TODO -- Be smart about invalidating the cache. Potential places:
|
|
|
6196
|
|
|
6197 + Insertions at end-of-line which don't cause line-wraps do not alter the
|
|
|
6198 starting positions of any display lines. These types of buffer
|
|
|
6199 modifications should not invalidate the cache. This is actually a large
|
|
|
6200 optimization for redisplay speed as well.
|
|
|
6201
|
|
|
6202 + Buffer modifications frequently only affect the display of lines at and
|
|
|
6203 below where they occur. In these situations we should only invalidate
|
|
|
6204 the part of the cache starting at where the modification occurs.
|
|
|
6205
|
|
|
6206 In case you're wondering, the Second Golden Rule of Redisplay is not
|
|
|
6207 applicable.
|
|
|
6208 ****************************************************************************/
|
|
|
6209
|
|
|
6210 /* This will get used quite a bit so we don't want to be constantly
|
|
|
6211 allocating and freeing it. */
|
|
|
6212 line_start_cache_dynarr *internal_cache;
|
|
|
6213
|
|
|
6214 /* Makes internal_cache represent the TYPE display structs and only
|
|
|
6215 the TYPE display structs. */
|
|
|
6216
|
|
|
6217 static void
|
|
|
6218 update_internal_cache_list (struct window *w, int type)
|
|
|
6219 {
|
|
|
6220 int line;
|
|
|
6221 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
6222
|
|
|
6223 Dynarr_reset (internal_cache);
|
|
|
6224 for (line = 0; line < Dynarr_length (dla); line++)
|
|
|
6225 {
|
|
|
6226 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
6227
|
|
|
6228 if (dl->modeline)
|
|
|
6229 continue;
|
|
|
6230 else
|
|
|
6231 {
|
|
|
6232 struct line_start_cache lsc;
|
|
|
6233
|
|
|
6234 lsc.start = dl->bufpos;
|
|
|
6235 lsc.end = dl->end_bufpos;
|
|
|
6236 lsc.height = dl->ascent + dl->descent;
|
|
|
6237
|
|
|
6238 Dynarr_add (internal_cache, lsc);
|
|
|
6239 }
|
|
|
6240 }
|
|
|
6241 }
|
|
|
6242
|
|
|
6243 /* Reset the line cache if necessary. This should be run at the
|
|
|
6244 beginning of any function which access the cache. */
|
|
|
6245
|
|
|
6246 static void
|
|
|
6247 validate_line_start_cache (struct window *w)
|
|
|
6248 {
|
|
|
6249 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6250 struct frame *f = XFRAME (w->frame);
|
|
|
6251
|
|
|
6252 if (!w->line_cache_validation_override)
|
|
|
6253 {
|
|
|
6254 /* f->extents_changed used to be in here because extent face and
|
|
|
6255 size changes can cause text shifting. However, the extent
|
|
|
6256 covering the region is constantly having its face set and
|
|
|
6257 priority altered by the mouse code. This means that the line
|
|
|
6258 start cache is constanty being invalidated. This is bad
|
|
|
6259 since the mouse code also triggers heavy usage of the cache.
|
|
|
6260 Since it is an unlikely that f->extents being changed
|
|
|
6261 indicates that the cache really needs to be updated and if it
|
|
|
6262 does redisplay will catch it pretty quickly we no longer
|
|
|
6263 invalidate the cache if it is set. This greatly speeds up
|
|
|
6264 dragging out regions with the mouse. */
|
|
|
6265 if (XINT (w->line_cache_last_updated) < BUF_MODIFF (b)
|
|
|
6266 || f->faces_changed
|
|
|
6267 || f->clip_changed)
|
|
|
6268 {
|
|
|
6269 Dynarr_reset (w->line_start_cache);
|
|
|
6270 }
|
|
|
6271 }
|
|
|
6272 }
|
|
|
6273
|
|
|
6274 /* Return the very first buffer position contained in the given
|
|
|
6275 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
6276 cache is valid. */
|
|
|
6277
|
|
|
6278 static Bufpos
|
|
|
6279 line_start_cache_start (struct window *w)
|
|
|
6280 {
|
|
|
6281 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6282
|
|
|
6283 if (!Dynarr_length (cache))
|
|
|
6284 return -1;
|
|
|
6285 else
|
|
173
|
6286 return Dynarr_atp (cache, 0)->start;
|
|
0
|
6287 }
|
|
|
6288
|
|
|
6289 /* Return the very last buffer position contained in the given
|
|
|
6290 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
6291 cache is valid. */
|
|
|
6292
|
|
|
6293 static Bufpos
|
|
|
6294 line_start_cache_end (struct window *w)
|
|
|
6295 {
|
|
|
6296 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6297
|
|
|
6298 if (!Dynarr_length (cache))
|
|
|
6299 return -1;
|
|
|
6300 else
|
|
173
|
6301 return Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
0
|
6302 }
|
|
|
6303
|
|
|
6304 /* Return the index of the line POINT is contained within in window
|
|
|
6305 W's line start cache. It will enlarge the cache or move the cache
|
|
|
6306 window in order to have POINT be present in the cache. MIN_PAST is
|
|
|
6307 a guarantee of the number of entries in the cache present on either
|
|
|
6308 side of POINT (unless a buffer boundary is hit). If MIN_PAST is -1
|
|
|
6309 then it will be treated as 0, but the cache window will not be
|
|
|
6310 allowed to shift. Returns -1 if POINT cannot be found in the cache
|
|
|
6311 for any reason. */
|
|
|
6312
|
|
|
6313 int
|
|
|
6314 point_in_line_start_cache (struct window *w, Bufpos point, int min_past)
|
|
|
6315 {
|
|
|
6316 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6317 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6318 unsigned int top, bottom, pos;
|
|
|
6319
|
|
|
6320 validate_line_start_cache (w);
|
|
|
6321 w->line_cache_validation_override++;
|
|
|
6322
|
|
|
6323 /* Let functions pass in negative values, but we still treat -1
|
|
|
6324 specially. */
|
|
|
6325 /* #### bogosity alert */
|
|
|
6326 if (min_past < 0 && min_past != -1)
|
|
|
6327 min_past = -min_past;
|
|
|
6328
|
|
|
6329 if (!Dynarr_length (cache) || line_start_cache_start (w) > point
|
|
|
6330 || line_start_cache_end (w) < point)
|
|
|
6331 {
|
|
|
6332 int loop;
|
|
|
6333 int win_char_height = window_char_height (w, 1);
|
|
|
6334
|
|
|
6335 /* Occasionally we get here with a 0 height
|
|
|
6336 window. find_next_newline_no_quit will abort if we pass it a
|
|
|
6337 count of 0 so handle that case. */
|
|
|
6338 if (!win_char_height)
|
|
|
6339 win_char_height = 1;
|
|
|
6340
|
|
|
6341 if (!Dynarr_length (cache))
|
|
|
6342 {
|
|
|
6343 Bufpos from = find_next_newline_no_quit (b, point, -1);
|
|
|
6344 Bufpos to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6345
|
|
|
6346 update_line_start_cache (w, from, to, point, 0);
|
|
|
6347
|
|
|
6348 if (!Dynarr_length (cache))
|
|
|
6349 {
|
|
|
6350 w->line_cache_validation_override--;
|
|
|
6351 return -1;
|
|
|
6352 }
|
|
|
6353 }
|
|
|
6354
|
|
|
6355 assert (Dynarr_length (cache));
|
|
|
6356
|
|
|
6357 loop = 0;
|
|
|
6358 while (line_start_cache_start (w) > point
|
|
|
6359 && (loop < cache_adjustment || min_past == -1))
|
|
|
6360 {
|
|
|
6361 Bufpos from, to;
|
|
|
6362
|
|
|
6363 from = line_start_cache_start (w);
|
|
|
6364 if (from <= BUF_BEGV (b))
|
|
|
6365 break;
|
|
|
6366
|
|
|
6367 from = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
6368 to = line_start_cache_end (w);
|
|
|
6369
|
|
|
6370 update_line_start_cache (w, from, to, point, 0);
|
|
|
6371 loop++;
|
|
|
6372 }
|
|
|
6373
|
|
|
6374 if (line_start_cache_start (w) > point)
|
|
|
6375 {
|
|
|
6376 Bufpos from, to;
|
|
|
6377
|
|
|
6378 from = find_next_newline_no_quit (b, point, -1);
|
|
|
6379 if (from >= BUF_ZV (b))
|
|
|
6380 {
|
|
|
6381 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
6382 from = to;
|
|
|
6383 to = BUF_ZV (b);
|
|
|
6384 }
|
|
|
6385 else
|
|
|
6386 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6387
|
|
|
6388 update_line_start_cache (w, from, to, point, 0);
|
|
|
6389 }
|
|
|
6390
|
|
|
6391 loop = 0;
|
|
|
6392 while (line_start_cache_end (w) < point
|
|
|
6393 && (loop < cache_adjustment || min_past == -1))
|
|
|
6394 {
|
|
|
6395 Bufpos from, to;
|
|
|
6396
|
|
|
6397 to = line_start_cache_end (w);
|
|
|
6398 if (to >= BUF_ZV (b))
|
|
|
6399 break;
|
|
|
6400
|
|
|
6401 from = line_start_cache_end (w);
|
|
|
6402 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6403
|
|
|
6404 update_line_start_cache (w, from, to, point, 0);
|
|
|
6405 loop++;
|
|
|
6406 }
|
|
|
6407
|
|
|
6408 if (line_start_cache_end (w) < point)
|
|
|
6409 {
|
|
|
6410 Bufpos from, to;
|
|
|
6411
|
|
|
6412 from = find_next_newline_no_quit (b, point, -1);
|
|
|
6413 if (from >= BUF_ZV (b))
|
|
|
6414 {
|
|
|
6415 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
6416 from = to;
|
|
|
6417 to = BUF_ZV (b);
|
|
|
6418 }
|
|
|
6419 else
|
|
|
6420 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
6421
|
|
|
6422 update_line_start_cache (w, from, to, point, 0);
|
|
|
6423 }
|
|
|
6424 }
|
|
|
6425
|
|
|
6426 assert (Dynarr_length (cache));
|
|
|
6427
|
|
|
6428 if (min_past == -1)
|
|
|
6429 min_past = 0;
|
|
|
6430
|
|
|
6431 /* This could happen if the buffer is narrowed. */
|
|
|
6432 if (line_start_cache_start (w) > point
|
|
|
6433 || line_start_cache_end (w) < point)
|
|
|
6434 {
|
|
|
6435 w->line_cache_validation_override--;
|
|
|
6436 return -1;
|
|
|
6437 }
|
|
|
6438
|
|
|
6439 find_point_loop:
|
|
|
6440
|
|
|
6441 top = Dynarr_length (cache) - 1;
|
|
|
6442 bottom = 0;
|
|
|
6443
|
|
|
6444 while (1)
|
|
|
6445 {
|
|
|
6446 unsigned int new_pos;
|
|
|
6447 Bufpos start, end;
|
|
|
6448
|
|
|
6449 pos = (bottom + top + 1) >> 1;
|
|
|
6450 start = Dynarr_atp (cache, pos)->start;
|
|
|
6451 end = Dynarr_atp (cache, pos)->end;
|
|
|
6452
|
|
|
6453 if (point >= start && point <= end)
|
|
|
6454 {
|
|
|
6455 if (pos < min_past && line_start_cache_start (w) > BUF_BEGV (b))
|
|
|
6456 {
|
|
|
6457 Bufpos from =
|
|
|
6458 find_next_newline_no_quit (b, line_start_cache_start (w),
|
|
|
6459 -min_past - 1);
|
|
|
6460 Bufpos to = line_start_cache_end (w);
|
|
|
6461
|
|
|
6462 update_line_start_cache (w, from, to, point, 0);
|
|
|
6463 goto find_point_loop;
|
|
|
6464 }
|
|
|
6465 else if ((Dynarr_length (cache) - pos - 1) < min_past
|
|
|
6466 && line_start_cache_end (w) < BUF_ZV (b))
|
|
|
6467 {
|
|
|
6468 Bufpos from = line_start_cache_end (w);
|
|
|
6469 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
6470 (min_past
|
|
|
6471 ? min_past
|
|
|
6472 : 1));
|
|
|
6473
|
|
|
6474 update_line_start_cache (w, from, to, point, 0);
|
|
|
6475 goto find_point_loop;
|
|
|
6476 }
|
|
|
6477 else
|
|
|
6478 {
|
|
|
6479 w->line_cache_validation_override--;
|
|
|
6480 return pos;
|
|
|
6481 }
|
|
|
6482 }
|
|
|
6483 else if (point > end)
|
|
|
6484 bottom = pos + 1;
|
|
|
6485 else if (point < start)
|
|
|
6486 top = pos - 1;
|
|
|
6487 else
|
|
|
6488 abort ();
|
|
|
6489
|
|
|
6490 new_pos = (bottom + top + 1) >> 1;
|
|
|
6491 if (pos == new_pos)
|
|
|
6492 {
|
|
|
6493 w->line_cache_validation_override--;
|
|
|
6494 return -1;
|
|
|
6495 }
|
|
|
6496 }
|
|
|
6497 }
|
|
|
6498
|
|
|
6499 /* Return a boolean indicating if POINT would be visible in window W
|
|
|
6500 if display of the window was to begin at STARTP. */
|
|
|
6501
|
|
|
6502 int
|
|
|
6503 point_would_be_visible (struct window *w, Bufpos startp, Bufpos point)
|
|
|
6504 {
|
|
|
6505 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6506 int pixpos = 0;
|
|
|
6507 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
6508 int start_elt;
|
|
|
6509
|
|
|
6510 /* If point is before the intended start it obviously can't be visible. */
|
|
|
6511 if (point < startp)
|
|
|
6512 return 0;
|
|
|
6513
|
|
|
6514 /* If point or start are not in the accessible buffer range, then
|
|
|
6515 fail. */
|
|
|
6516 if (startp < BUF_BEGV (b) || startp > BUF_ZV (b)
|
|
|
6517 || point < BUF_BEGV (b) || point > BUF_ZV (b))
|
|
|
6518 {
|
|
|
6519 w->line_cache_validation_override--;
|
|
|
6520 return 0;
|
|
|
6521 }
|
|
|
6522
|
|
|
6523 validate_line_start_cache (w);
|
|
|
6524 w->line_cache_validation_override++;
|
|
|
6525
|
|
|
6526 start_elt = point_in_line_start_cache (w, startp, 0);
|
|
|
6527 if (start_elt == -1)
|
|
|
6528 {
|
|
|
6529 w->line_cache_validation_override--;
|
|
|
6530 return 0;
|
|
|
6531 }
|
|
|
6532
|
|
|
6533 assert (line_start_cache_start (w) <= startp
|
|
|
6534 && line_start_cache_end (w) >= startp);
|
|
|
6535
|
|
|
6536 while (1)
|
|
|
6537 {
|
|
|
6538 int height;
|
|
|
6539
|
|
|
6540 /* Expand the cache if necessary. */
|
|
|
6541 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
6542 {
|
|
|
6543 Bufpos old_startp =
|
|
|
6544 Dynarr_atp (w->line_start_cache, start_elt - 1)->start;
|
|
|
6545
|
|
|
6546 start_elt = point_in_line_start_cache (w, old_startp,
|
|
|
6547 window_char_height (w, 0));
|
|
|
6548
|
|
|
6549 /* We've already actually processed old_startp, so increment
|
|
|
6550 immediately. */
|
|
|
6551 start_elt++;
|
|
|
6552
|
|
|
6553 /* If this happens we didn't add any extra elements. Bummer. */
|
|
|
6554 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
6555 {
|
|
|
6556 w->line_cache_validation_override--;
|
|
|
6557 return 0;
|
|
|
6558 }
|
|
|
6559 }
|
|
|
6560
|
|
|
6561 height = Dynarr_atp (w->line_start_cache, start_elt)->height;
|
|
|
6562
|
|
|
6563 if (pixpos + height > bottom)
|
|
|
6564 {
|
|
|
6565 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
6566 {
|
|
|
6567 w->line_cache_validation_override--;
|
|
|
6568 return 0;
|
|
|
6569 }
|
|
|
6570 }
|
|
|
6571
|
|
|
6572 pixpos += height;
|
|
|
6573 if (point <= Dynarr_atp (w->line_start_cache, start_elt)->end)
|
|
|
6574 {
|
|
|
6575 w->line_cache_validation_override--;
|
|
|
6576 return 1;
|
|
|
6577 }
|
|
|
6578
|
|
|
6579 start_elt++;
|
|
|
6580 }
|
|
|
6581 }
|
|
|
6582
|
|
|
6583 /* For the given window W, if display starts at STARTP, what will be
|
|
|
6584 the buffer position at the beginning or end of the last line
|
|
|
6585 displayed. The end of the last line is also know as the window end
|
|
|
6586 position.
|
|
|
6587
|
|
|
6588 #### With a little work this could probably be reworked as just a
|
|
|
6589 call to start_with_line_at_pixpos. */
|
|
|
6590
|
|
|
6591 static Bufpos
|
|
|
6592 start_end_of_last_line (struct window *w, Bufpos startp, int end)
|
|
|
6593 {
|
|
|
6594 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6595 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6596 int pixpos = 0;
|
|
|
6597 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
6598 Bufpos cur_start;
|
|
|
6599 int start_elt;
|
|
|
6600
|
|
|
6601 validate_line_start_cache (w);
|
|
|
6602 w->line_cache_validation_override++;
|
|
|
6603
|
|
|
6604 if (startp < BUF_BEGV (b))
|
|
|
6605 startp = BUF_BEGV (b);
|
|
|
6606 else if (startp > BUF_ZV (b))
|
|
|
6607 startp = BUF_ZV (b);
|
|
|
6608 cur_start = startp;
|
|
|
6609
|
|
|
6610 start_elt = point_in_line_start_cache (w, cur_start, 0);
|
|
|
6611 if (start_elt == -1)
|
|
|
6612 abort (); /* this had better never happen */
|
|
|
6613
|
|
|
6614 while (1)
|
|
|
6615 {
|
|
|
6616 int height = Dynarr_atp (cache, start_elt)->height;
|
|
|
6617
|
|
|
6618 cur_start = Dynarr_atp (cache, start_elt)->start;
|
|
|
6619
|
|
|
6620 if (pixpos + height > bottom)
|
|
|
6621 {
|
|
|
6622 /* Adjust for any possible clip. */
|
|
|
6623 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
6624 start_elt--;
|
|
|
6625
|
|
|
6626 if (start_elt < 0)
|
|
|
6627 {
|
|
|
6628 w->line_cache_validation_override--;
|
|
|
6629 if (end)
|
|
173
|
6630 return BUF_ZV (b);
|
|
0
|
6631 else
|
|
173
|
6632 return BUF_BEGV (b);
|
|
0
|
6633 }
|
|
|
6634 else
|
|
|
6635 {
|
|
|
6636 w->line_cache_validation_override--;
|
|
|
6637 if (end)
|
|
|
6638 return Dynarr_atp (cache, start_elt)->end;
|
|
|
6639 else
|
|
|
6640 return Dynarr_atp (cache, start_elt)->start;
|
|
|
6641 }
|
|
|
6642 }
|
|
|
6643
|
|
|
6644 pixpos += height;
|
|
|
6645 start_elt++;
|
|
|
6646 if (start_elt == Dynarr_length (cache))
|
|
|
6647 {
|
|
|
6648 Bufpos from = line_start_cache_end (w);
|
|
|
6649 int win_char_height = window_char_height (w, 0);
|
|
|
6650 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
6651 (win_char_height
|
|
|
6652 ? win_char_height
|
|
|
6653 : 1));
|
|
|
6654
|
|
|
6655 /* We've hit the end of the bottom so that's what it is. */
|
|
|
6656 if (from >= BUF_ZV (b))
|
|
|
6657 {
|
|
|
6658 w->line_cache_validation_override--;
|
|
173
|
6659 return BUF_ZV (b);
|
|
0
|
6660 }
|
|
|
6661
|
|
|
6662 update_line_start_cache (w, from, to, BUF_PT (b), 0);
|
|
|
6663
|
|
|
6664 /* Updating the cache invalidates any current indexes. */
|
|
|
6665 start_elt = point_in_line_start_cache (w, cur_start, -1) + 1;
|
|
|
6666 }
|
|
|
6667 }
|
|
|
6668 }
|
|
|
6669
|
|
|
6670 /* For the given window W, if display starts at STARTP, what will be
|
|
|
6671 the buffer position at the beginning of the last line displayed. */
|
|
|
6672
|
|
|
6673 Bufpos
|
|
|
6674 start_of_last_line (struct window *w, Bufpos startp)
|
|
|
6675 {
|
|
|
6676 return start_end_of_last_line (w, startp, 0);
|
|
|
6677 }
|
|
|
6678
|
|
|
6679 /* For the given window W, if display starts at STARTP, what will be
|
|
|
6680 the buffer position at the end of the last line displayed. This is
|
|
|
6681 also know as the window end position. */
|
|
|
6682
|
|
|
6683 Bufpos
|
|
|
6684 end_of_last_line (struct window *w, Bufpos startp)
|
|
|
6685 {
|
|
|
6686 return start_end_of_last_line (w, startp, 1);
|
|
|
6687 }
|
|
|
6688
|
|
|
6689 /* For window W, what does the starting position have to be so that
|
|
|
6690 the line containing POINT will cover pixel position PIXPOS. */
|
|
|
6691
|
|
|
6692 Bufpos
|
|
|
6693 start_with_line_at_pixpos (struct window *w, Bufpos point, int pixpos)
|
|
|
6694 {
|
|
|
6695 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6696 int cur_elt;
|
|
116
|
6697 Bufpos cur_pos, prev_pos = point;
|
|
|
6698 int point_line_height;
|
|
0
|
6699 int pixheight = pixpos - WINDOW_TEXT_TOP (w);
|
|
|
6700
|
|
|
6701 validate_line_start_cache (w);
|
|
|
6702 w->line_cache_validation_override++;
|
|
|
6703
|
|
|
6704 cur_elt = point_in_line_start_cache (w, point, 0);
|
|
|
6705 /* #### See comment in update_line_start_cache about big minibuffers. */
|
|
|
6706 if (cur_elt < 0)
|
|
|
6707 return point;
|
|
116
|
6708
|
|
|
6709 point_line_height = Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
6710
|
|
0
|
6711 while (1)
|
|
|
6712 {
|
|
|
6713 cur_pos = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
6714
|
|
|
6715 pixheight -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
6716
|
|
|
6717 /* Do not take into account the value of vertical_clip here.
|
|
|
6718 That is the responsibility of the calling functions. */
|
|
|
6719 if (pixheight < 0)
|
|
|
6720 {
|
|
|
6721 w->line_cache_validation_override--;
|
|
116
|
6722 if (-pixheight > point_line_height)
|
|
|
6723 /* We can't make the target line cover pixpos, so put it
|
|
|
6724 above pixpos. That way it will at least be visible. */
|
|
183
|
6725 return prev_pos;
|
|
116
|
6726 else
|
|
|
6727 return cur_pos;
|
|
0
|
6728 }
|
|
|
6729
|
|
|
6730 cur_elt--;
|
|
|
6731 if (cur_elt < 0)
|
|
|
6732 {
|
|
|
6733 Bufpos from, to;
|
|
|
6734 int win_char_height;
|
|
|
6735
|
|
|
6736 if (cur_pos <= BUF_BEGV (b))
|
|
|
6737 {
|
|
|
6738 w->line_cache_validation_override--;
|
|
173
|
6739 return BUF_BEGV (b);
|
|
0
|
6740 }
|
|
|
6741
|
|
|
6742 win_char_height = window_char_height (w, 0);
|
|
|
6743 if (!win_char_height)
|
|
|
6744 win_char_height = 1;
|
|
|
6745
|
|
|
6746 from = find_next_newline_no_quit (b, cur_pos, -win_char_height);
|
|
|
6747 to = line_start_cache_end (w);
|
|
|
6748 update_line_start_cache (w, from, to, point, 0);
|
|
|
6749
|
|
|
6750 cur_elt = point_in_line_start_cache (w, cur_pos, 2) - 1;
|
|
|
6751 assert (cur_elt >= 0);
|
|
|
6752 }
|
|
116
|
6753 prev_pos = cur_pos;
|
|
0
|
6754 }
|
|
|
6755 }
|
|
|
6756
|
|
|
6757 /* For window W, what does the starting position have to be so that
|
|
|
6758 the line containing point is on display line LINE. If LINE is
|
|
|
6759 positive it is considered to be the number of lines from the top of
|
|
|
6760 the window (0 is the top line). If it is negative the number is
|
|
|
6761 considered to be the number of lines from the bottom (-1 is the
|
|
|
6762 bottom line). */
|
|
|
6763
|
|
|
6764 Bufpos
|
|
|
6765 start_with_point_on_display_line (struct window *w, Bufpos point, int line)
|
|
|
6766 {
|
|
|
6767 validate_line_start_cache (w);
|
|
|
6768 w->line_cache_validation_override++;
|
|
|
6769
|
|
|
6770 if (line >= 0)
|
|
|
6771 {
|
|
|
6772 int cur_elt = point_in_line_start_cache (w, point, line);
|
|
|
6773
|
|
|
6774 if (cur_elt - line < 0)
|
|
|
6775 cur_elt = 0; /* Hit the top */
|
|
|
6776 else
|
|
|
6777 cur_elt -= line;
|
|
|
6778
|
|
|
6779 w->line_cache_validation_override--;
|
|
173
|
6780 return Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
0
|
6781 }
|
|
|
6782 else
|
|
|
6783 {
|
|
|
6784 /* The calculated value of pixpos is correct for the bottom line
|
|
|
6785 or what we want when line is -1. Therefore we subtract one
|
|
|
6786 because we have already handled one line. */
|
|
|
6787 int new_line = -line - 1;
|
|
|
6788 int cur_elt = point_in_line_start_cache (w, point, new_line);
|
|
|
6789 int pixpos = WINDOW_TEXT_BOTTOM (w);
|
|
|
6790 Bufpos retval, search_point;
|
|
|
6791
|
|
|
6792 /* If scroll_on_clipped_lines is false, the last "visible" line of
|
|
|
6793 the window covers the pixel at WINDOW_TEXT_BOTTOM (w) - 1.
|
|
183
|
6794 If s_o_c_l is true, then we don't want to count a clipped
|
|
|
6795 line, so back up from the bottom by the height of the line
|
|
0
|
6796 containing point. */
|
|
|
6797 if (scroll_on_clipped_lines)
|
|
|
6798 pixpos -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
6799 else
|
|
|
6800 pixpos -= 1;
|
|
|
6801
|
|
|
6802 if (cur_elt + new_line >= Dynarr_length (w->line_start_cache))
|
|
|
6803 {
|
|
|
6804 /* Hit the bottom of the buffer. */
|
|
|
6805 int adjustment =
|
|
|
6806 (cur_elt + new_line) - Dynarr_length (w->line_start_cache) + 1;
|
|
|
6807 Lisp_Object window = Qnil;
|
|
|
6808 int defheight;
|
|
|
6809
|
|
|
6810 XSETWINDOW (window, w);
|
|
|
6811 default_face_height_and_width (window, &defheight, 0);
|
|
|
6812
|
|
|
6813 cur_elt = Dynarr_length (w->line_start_cache) - 1;
|
|
|
6814
|
|
|
6815 pixpos -= (adjustment * defheight);
|
|
|
6816 if (pixpos < WINDOW_TEXT_TOP (w))
|
|
|
6817 pixpos = WINDOW_TEXT_TOP (w);
|
|
|
6818 }
|
|
|
6819 else
|
|
|
6820 cur_elt = cur_elt + new_line;
|
|
|
6821
|
|
|
6822 search_point = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
6823
|
|
|
6824 retval = start_with_line_at_pixpos (w, search_point, pixpos);
|
|
|
6825 w->line_cache_validation_override--;
|
|
|
6826 return retval;
|
|
|
6827 }
|
|
|
6828 }
|
|
|
6829
|
|
|
6830 /* This is used to speed up vertical scrolling by caching the known
|
|
|
6831 buffer starting positions for display lines. This allows the
|
|
|
6832 scrolling routines to avoid costly calls to regenerate_window. If
|
|
|
6833 NO_REGEN is true then it will only add the values in the DESIRED
|
|
|
6834 display structs which are in the given range.
|
|
|
6835
|
|
|
6836 Note also that the FROM/TO values are minimums. It is possible
|
|
|
6837 that this function will actually add information outside of the
|
|
|
6838 lines containing those positions. This can't hurt but it could
|
|
|
6839 possibly help.
|
|
|
6840
|
|
|
6841 #### We currently force the cache to have only 1 contiguous region.
|
|
|
6842 It might help to make the cache a dynarr of caches so that we can
|
|
|
6843 cover more areas. This might, however, turn out to be a lot of
|
|
|
6844 overhead for too little gain. */
|
|
|
6845
|
|
|
6846 static void
|
|
|
6847 update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
|
|
|
6848 Bufpos point, int no_regen)
|
|
|
6849 {
|
|
|
6850 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6851 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
6852 Bufpos low_bound, high_bound;
|
|
|
6853
|
|
|
6854 validate_line_start_cache (w);
|
|
|
6855 w->line_cache_validation_override++;
|
|
|
6856 updating_line_start_cache = 1;
|
|
|
6857
|
|
|
6858 if (from < BUF_BEGV (b))
|
|
|
6859 from = BUF_BEGV (b);
|
|
|
6860 if (to > BUF_ZV (b))
|
|
|
6861 to = BUF_ZV (b);
|
|
|
6862
|
|
|
6863 if (from > to)
|
|
|
6864 {
|
|
|
6865 updating_line_start_cache = 0;
|
|
|
6866 w->line_cache_validation_override--;
|
|
|
6867 return;
|
|
|
6868 }
|
|
|
6869
|
|
|
6870 if (Dynarr_length (cache))
|
|
|
6871 {
|
|
|
6872 low_bound = line_start_cache_start (w);
|
|
|
6873 high_bound = line_start_cache_end (w);
|
|
|
6874
|
|
|
6875 /* Check to see if the desired range is already in the cache. */
|
|
|
6876 if (from >= low_bound && to <= high_bound)
|
|
|
6877 {
|
|
|
6878 updating_line_start_cache = 0;
|
|
|
6879 w->line_cache_validation_override--;
|
|
|
6880 return;
|
|
|
6881 }
|
|
|
6882
|
|
|
6883 /* Check to make sure that the desired range is adjacent to the
|
|
|
6884 current cache. If not, invalidate the cache. */
|
|
|
6885 if (to < low_bound || from > high_bound)
|
|
|
6886 {
|
|
|
6887 Dynarr_reset (cache);
|
|
|
6888 low_bound = high_bound = -1;
|
|
|
6889 }
|
|
|
6890 }
|
|
|
6891 else
|
|
|
6892 {
|
|
|
6893 low_bound = high_bound = -1;
|
|
|
6894 }
|
|
|
6895
|
|
|
6896 w->line_cache_last_updated = make_int (BUF_MODIFF (b));
|
|
|
6897
|
|
|
6898 /* This could be integrated into the next two sections, but it is easier
|
|
|
6899 to follow what's going on by having it separate. */
|
|
|
6900 if (no_regen)
|
|
|
6901 {
|
|
|
6902 Bufpos start, end;
|
|
|
6903
|
|
|
6904 update_internal_cache_list (w, DESIRED_DISP);
|
|
|
6905 if (!Dynarr_length (internal_cache))
|
|
|
6906 {
|
|
|
6907 updating_line_start_cache = 0;
|
|
|
6908 w->line_cache_validation_override--;
|
|
|
6909 return;
|
|
|
6910 }
|
|
|
6911
|
|
|
6912 start = Dynarr_atp (internal_cache, 0)->start;
|
|
|
6913 end =
|
|
|
6914 Dynarr_atp (internal_cache, Dynarr_length (internal_cache) - 1)->end;
|
|
|
6915
|
|
|
6916 /* We aren't allowed to generate additional information to fill in
|
|
|
6917 gaps, so if the DESIRED structs don't overlap the cache, reset the
|
|
|
6918 cache. */
|
|
|
6919 if (Dynarr_length (cache))
|
|
|
6920 {
|
|
|
6921 if (end < low_bound || start > high_bound)
|
|
|
6922 Dynarr_reset (cache);
|
|
|
6923
|
|
|
6924 /* #### What should really happen if what we are doing is
|
|
|
6925 extending a line (the last line)? */
|
|
|
6926 if (Dynarr_length (cache) == 1
|
|
|
6927 && Dynarr_length (internal_cache) == 1)
|
|
|
6928 Dynarr_reset (cache);
|
|
|
6929 }
|
|
|
6930
|
|
|
6931 if (!Dynarr_length (cache))
|
|
|
6932 {
|
|
|
6933 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
6934 Dynarr_length (internal_cache));
|
|
|
6935 updating_line_start_cache = 0;
|
|
|
6936 w->line_cache_validation_override--;
|
|
|
6937 return;
|
|
|
6938 }
|
|
|
6939
|
|
|
6940 /* An extra check just in case the calling function didn't pass in
|
|
|
6941 the bounds of the DESIRED structs in the first place. */
|
|
|
6942 if (start >= low_bound && end <= high_bound)
|
|
|
6943 {
|
|
|
6944 updating_line_start_cache = 0;
|
|
|
6945 w->line_cache_validation_override--;
|
|
|
6946 return;
|
|
|
6947 }
|
|
|
6948
|
|
|
6949 /* At this point we know that the internal cache partially overlaps
|
|
|
6950 the main cache. */
|
|
|
6951 if (start < low_bound)
|
|
|
6952 {
|
|
|
6953 int ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
6954 while (ic_elt >= 0)
|
|
|
6955 {
|
|
|
6956 if (Dynarr_atp (internal_cache, ic_elt)->start < low_bound)
|
|
|
6957 break;
|
|
|
6958 else
|
|
|
6959 ic_elt--;
|
|
|
6960 }
|
|
|
6961
|
|
|
6962 if (!(ic_elt >= 0))
|
|
|
6963 {
|
|
|
6964 Dynarr_reset (cache);
|
|
|
6965 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
6966 Dynarr_length (internal_cache));
|
|
|
6967 updating_line_start_cache = 0;
|
|
|
6968 w->line_cache_validation_override--;
|
|
|
6969 return;
|
|
|
6970 }
|
|
|
6971
|
|
|
6972 Dynarr_insert_many_at_start (cache, Dynarr_atp (internal_cache, 0),
|
|
|
6973 ic_elt + 1);
|
|
|
6974 }
|
|
|
6975
|
|
|
6976 if (end > high_bound)
|
|
|
6977 {
|
|
|
6978 int ic_elt = 0;
|
|
|
6979
|
|
|
6980 while (ic_elt < Dynarr_length (internal_cache))
|
|
|
6981 {
|
|
|
6982 if (Dynarr_atp (internal_cache, ic_elt)->start > high_bound)
|
|
|
6983 break;
|
|
|
6984 else
|
|
|
6985 ic_elt++;
|
|
|
6986 }
|
|
|
6987
|
|
|
6988 if (!(ic_elt < Dynarr_length (internal_cache)))
|
|
|
6989 {
|
|
|
6990 Dynarr_reset (cache);
|
|
|
6991 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
6992 Dynarr_length (internal_cache));
|
|
|
6993 updating_line_start_cache = 0;
|
|
|
6994 w->line_cache_validation_override--;
|
|
|
6995 return;
|
|
|
6996 }
|
|
|
6997
|
|
|
6998 Dynarr_add_many (cache, Dynarr_atp (internal_cache, ic_elt),
|
|
|
6999 Dynarr_length (internal_cache) - ic_elt);
|
|
|
7000 }
|
|
|
7001
|
|
|
7002 updating_line_start_cache = 0;
|
|
|
7003 w->line_cache_validation_override--;
|
|
|
7004 return;
|
|
|
7005 }
|
|
|
7006
|
|
|
7007 if (!Dynarr_length (cache) || from < low_bound)
|
|
|
7008 {
|
|
|
7009 Bufpos startp = find_next_newline_no_quit (b, from, -1);
|
|
|
7010 int marker = 0;
|
|
|
7011 int old_lb = low_bound;
|
|
|
7012
|
|
|
7013 while (startp < old_lb || low_bound == -1)
|
|
|
7014 {
|
|
|
7015 int ic_elt;
|
|
|
7016
|
|
|
7017 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
7018 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
7019
|
|
|
7020 /* If this assert is triggered then regenerate_window failed
|
|
|
7021 to layout a single line. That is not supposed to be
|
|
|
7022 possible because we impose a minimum height on the buffer
|
|
|
7023 and override vertical clip when we are in here. */
|
|
|
7024 /* #### Ah, but it is because the window may temporarily
|
|
|
7025 exist but not have any lines at all if the minibuffer is
|
|
|
7026 real big. Look into that situation better. */
|
|
|
7027 if (!Dynarr_length (internal_cache))
|
|
|
7028 {
|
|
|
7029 if (old_lb == -1 && low_bound == -1)
|
|
|
7030 {
|
|
|
7031 updating_line_start_cache = 0;
|
|
|
7032 w->line_cache_validation_override--;
|
|
|
7033 return;
|
|
|
7034 }
|
|
|
7035
|
|
|
7036 assert (Dynarr_length (internal_cache));
|
|
|
7037 }
|
|
|
7038 assert (startp == Dynarr_atp (internal_cache, 0)->start);
|
|
|
7039
|
|
|
7040 ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
7041 if (low_bound != -1)
|
|
|
7042 {
|
|
|
7043 while (ic_elt >= 0)
|
|
|
7044 {
|
|
|
7045 if (Dynarr_atp (internal_cache, ic_elt)->start < old_lb)
|
|
|
7046 break;
|
|
|
7047 else
|
|
|
7048 ic_elt--;
|
|
|
7049 }
|
|
|
7050 }
|
|
|
7051 assert (ic_elt >= 0);
|
|
|
7052
|
|
|
7053 Dynarr_insert_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7054 ic_elt + 1, marker);
|
|
|
7055 marker += (ic_elt + 1);
|
|
|
7056
|
|
|
7057 if (startp < low_bound || low_bound == -1)
|
|
|
7058 low_bound = startp;
|
|
|
7059 startp = Dynarr_atp (internal_cache, ic_elt)->end + 1;
|
|
|
7060 if (startp > BUF_ZV (b))
|
|
|
7061 {
|
|
|
7062 updating_line_start_cache = 0;
|
|
|
7063 w->line_cache_validation_override--;
|
|
|
7064 return;
|
|
|
7065 }
|
|
|
7066 }
|
|
|
7067 }
|
|
|
7068
|
|
|
7069 assert (Dynarr_length (cache));
|
|
|
7070 assert (from >= low_bound);
|
|
|
7071
|
|
|
7072 /* Readjust the high_bound to account for any changes made while
|
|
|
7073 correcting the low_bound. */
|
|
|
7074 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
7075
|
|
|
7076 if (to > high_bound)
|
|
|
7077 {
|
|
|
7078 Bufpos startp = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end + 1;
|
|
|
7079
|
|
|
7080 do
|
|
|
7081 {
|
|
|
7082 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
7083 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
7084
|
|
|
7085 /* See comment above about regenerate_window failing. */
|
|
|
7086 assert (Dynarr_length (internal_cache));
|
|
|
7087
|
|
|
7088 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7089 Dynarr_length (internal_cache));
|
|
|
7090 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
7091 startp = high_bound + 1;
|
|
|
7092 }
|
|
|
7093 while (to > high_bound);
|
|
|
7094 }
|
|
|
7095
|
|
|
7096 updating_line_start_cache = 0;
|
|
|
7097 w->line_cache_validation_override--;
|
|
|
7098 assert (to <= high_bound);
|
|
|
7099 }
|
|
|
7100
|
|
|
7101
|
|
|
7102 /* Given x and y coordinates in characters, relative to a window,
|
|
|
7103 return the pixel location corresponding to those coordinates. The
|
|
|
7104 pixel location returned is the center of the given character
|
|
|
7105 position. The pixel values are generated relative to the window,
|
|
|
7106 not the frame.
|
|
|
7107
|
|
|
7108 The modeline is considered to be part of the window. */
|
|
|
7109
|
|
|
7110 void
|
|
|
7111 glyph_to_pixel_translation (struct window *w, int char_x, int char_y,
|
|
|
7112 int *pix_x, int *pix_y)
|
|
|
7113 {
|
|
|
7114 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
7115 int num_disp_lines, modeline;
|
|
|
7116 Lisp_Object window = Qnil;
|
|
|
7117 int defheight, defwidth;
|
|
|
7118
|
|
|
7119 XSETWINDOW (window, w);
|
|
|
7120 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
7121
|
|
|
7122 /* If we get a bogus value indicating somewhere above or to the left of
|
|
|
7123 the window, use the first window line or character position
|
|
|
7124 instead. */
|
|
|
7125 if (char_y < 0)
|
|
|
7126 char_y = 0;
|
|
|
7127 if (char_x < 0)
|
|
|
7128 char_x = 0;
|
|
|
7129
|
|
|
7130 num_disp_lines = Dynarr_length (dla);
|
|
|
7131 modeline = 0;
|
|
|
7132 if (num_disp_lines)
|
|
|
7133 {
|
|
|
7134 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
7135 {
|
|
|
7136 num_disp_lines--;
|
|
|
7137 modeline = 1;
|
|
|
7138 }
|
|
|
7139 }
|
|
|
7140
|
|
|
7141 /* First check if the y position intersects the display lines. */
|
|
|
7142 if (char_y < num_disp_lines)
|
|
|
7143 {
|
|
|
7144 struct display_line *dl = Dynarr_atp (dla, char_y + modeline);
|
|
|
7145 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
7146
|
|
|
7147 *pix_y = (dl->ypos - dl->ascent +
|
|
|
7148 ((unsigned int) (dl->ascent + dl->descent - dl->clip) >> 1));
|
|
|
7149
|
|
|
7150 if (char_x < Dynarr_length (db->runes))
|
|
|
7151 {
|
|
|
7152 struct rune *rb = Dynarr_atp (db->runes, char_x);
|
|
|
7153
|
|
|
7154 *pix_x = rb->xpos + (rb->width >> 1);
|
|
|
7155 }
|
|
|
7156 else
|
|
|
7157 {
|
|
|
7158 int last_rune = Dynarr_length (db->runes) - 1;
|
|
|
7159 struct rune *rb = Dynarr_atp (db->runes, last_rune);
|
|
|
7160
|
|
|
7161 char_x -= last_rune;
|
|
|
7162
|
|
|
7163 *pix_x = rb->xpos + rb->width;
|
|
|
7164 *pix_x += ((char_x - 1) * defwidth);
|
|
|
7165 *pix_x += (defwidth >> 1);
|
|
|
7166 }
|
|
|
7167 }
|
|
|
7168 else
|
|
|
7169 {
|
|
|
7170 /* It didn't intersect, so extrapolate. #### For now, we include the
|
|
|
7171 modeline in this since we don't have true character positions in
|
|
|
7172 it. */
|
|
|
7173
|
|
|
7174 if (!Dynarr_length (w->face_cachels))
|
|
|
7175 reset_face_cachels (w);
|
|
|
7176
|
|
|
7177 char_y -= num_disp_lines;
|
|
|
7178
|
|
|
7179 if (Dynarr_length (dla))
|
|
|
7180 {
|
|
|
7181 struct display_line *dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
7182 *pix_y = dl->ypos + dl->descent - dl->clip;
|
|
|
7183 }
|
|
|
7184 else
|
|
|
7185 *pix_y = WINDOW_TEXT_TOP (w);
|
|
|
7186
|
|
|
7187 *pix_y += (char_y * defheight);
|
|
|
7188 *pix_y += (defheight >> 1);
|
|
|
7189
|
|
|
7190 *pix_x = WINDOW_TEXT_LEFT (w);
|
|
|
7191 /* Don't adjust by one because this is still the unadjusted value. */
|
|
|
7192 *pix_x += (char_x * defwidth);
|
|
|
7193 *pix_x += (defwidth >> 1);
|
|
|
7194 }
|
|
|
7195
|
|
|
7196 if (*pix_x > w->pixel_left + w->pixel_width)
|
|
185
|
7197 *pix_x = w->pixel_left + w->pixel_width;
|
|
0
|
7198 if (*pix_y > w->pixel_top + w->pixel_height)
|
|
185
|
7199 *pix_y = w->pixel_top + w->pixel_height;
|
|
0
|
7200
|
|
|
7201 *pix_x -= w->pixel_left;
|
|
|
7202 *pix_y -= w->pixel_top;
|
|
|
7203 }
|
|
|
7204
|
|
|
7205 /* Given a display line and a position, determine if there is a glyph
|
|
|
7206 there and return information about it if there is. */
|
|
|
7207
|
|
|
7208 static void
|
|
|
7209 get_position_object (struct display_line *dl, Lisp_Object *obj1,
|
|
|
7210 Lisp_Object *obj2, int x_coord, int *low_x_coord,
|
|
|
7211 int *high_x_coord)
|
|
|
7212 {
|
|
|
7213 struct display_block *db;
|
|
|
7214 int elt;
|
|
|
7215 int block =
|
|
|
7216 get_next_display_block (dl->bounds, dl->display_blocks, x_coord, 0);
|
|
|
7217
|
|
|
7218 /* We use get_next_display_block to get the actual display block
|
|
|
7219 that would be displayed at x_coord. */
|
|
|
7220
|
|
|
7221 if (block == NO_BLOCK)
|
|
|
7222 return;
|
|
|
7223 else
|
|
|
7224 db = Dynarr_atp (dl->display_blocks, block);
|
|
|
7225
|
|
|
7226 for (elt = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
7227 {
|
|
|
7228 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
7229
|
|
|
7230 if (rb->xpos <= x_coord && x_coord < (rb->xpos + rb->width))
|
|
|
7231 {
|
|
|
7232 if (rb->type == RUNE_DGLYPH)
|
|
|
7233 {
|
|
|
7234 *obj1 = rb->object.dglyph.glyph;
|
|
|
7235 *obj2 = rb->object.dglyph.extent;
|
|
|
7236 }
|
|
|
7237 else
|
|
|
7238 {
|
|
|
7239 *obj1 = Qnil;
|
|
|
7240 *obj2 = Qnil;
|
|
|
7241 }
|
|
|
7242
|
|
|
7243 if (low_x_coord)
|
|
|
7244 *low_x_coord = rb->xpos;
|
|
|
7245 if (high_x_coord)
|
|
|
7246 *high_x_coord = rb->xpos + rb->width;
|
|
|
7247
|
|
|
7248 return;
|
|
|
7249 }
|
|
|
7250 }
|
|
|
7251 }
|
|
|
7252
|
|
|
7253 #define UPDATE_CACHE_RETURN \
|
|
|
7254 do { \
|
|
|
7255 d->pixel_to_glyph_cache.valid = 1; \
|
|
|
7256 d->pixel_to_glyph_cache.low_x_coord = low_x_coord; \
|
|
|
7257 d->pixel_to_glyph_cache.high_x_coord = high_x_coord; \
|
|
|
7258 d->pixel_to_glyph_cache.low_y_coord = low_y_coord; \
|
|
|
7259 d->pixel_to_glyph_cache.high_y_coord = high_y_coord; \
|
|
|
7260 d->pixel_to_glyph_cache.frame = f; \
|
|
|
7261 d->pixel_to_glyph_cache.col = *col; \
|
|
|
7262 d->pixel_to_glyph_cache.row = *row; \
|
|
|
7263 d->pixel_to_glyph_cache.obj_x = *obj_x; \
|
|
|
7264 d->pixel_to_glyph_cache.obj_y = *obj_y; \
|
|
|
7265 d->pixel_to_glyph_cache.w = *w; \
|
|
|
7266 d->pixel_to_glyph_cache.bufpos = *bufpos; \
|
|
|
7267 d->pixel_to_glyph_cache.closest = *closest; \
|
|
|
7268 d->pixel_to_glyph_cache.modeline_closest = *modeline_closest; \
|
|
|
7269 d->pixel_to_glyph_cache.obj1 = *obj1; \
|
|
|
7270 d->pixel_to_glyph_cache.obj2 = *obj2; \
|
|
|
7271 d->pixel_to_glyph_cache.retval = position; \
|
|
|
7272 RETURN__ position; \
|
|
|
7273 } while (0)
|
|
|
7274
|
|
|
7275 /* Given x and y coordinates in pixels relative to a frame, return
|
|
|
7276 information about what is located under those coordinates.
|
|
|
7277
|
|
|
7278 The return value will be one of:
|
|
|
7279
|
|
|
7280 OVER_TOOLBAR: over one of the 4 frame toolbars
|
|
|
7281 OVER_MODELINE: over a modeline
|
|
|
7282 OVER_BORDER: over an internal border
|
|
|
7283 OVER_NOTHING: over the text area, but not over text
|
|
|
7284 OVER_OUTSIDE: outside of the frame border
|
|
|
7285 OVER_TEXT: over text in the text area
|
|
|
7286
|
|
|
7287 OBJ1 is one of
|
|
|
7288
|
|
|
7289 -- a toolbar button
|
|
|
7290 -- a glyph
|
|
|
7291 -- nil if the coordinates are not over a glyph or a toolbar button.
|
|
|
7292
|
|
|
7293 OBJ2 is one of
|
|
|
7294
|
|
|
7295 -- an extent, if the coordinates are over a glyph in the text area
|
|
|
7296 -- nil otherwise.
|
|
|
7297
|
|
|
7298 If the coordinates are over a glyph, OBJ_X and OBJ_Y give the
|
|
|
7299 equivalent coordinates relative to the upper-left corner of the glyph.
|
|
|
7300
|
|
|
7301 If the coordinates are over a character, OBJ_X and OBJ_Y give the
|
|
|
7302 equivalent coordinates relative to the upper-left corner of the character.
|
|
|
7303
|
|
|
7304 Otherwise, OBJ_X and OBJ_Y are undefined.
|
|
|
7305 */
|
|
|
7306
|
|
|
7307 int
|
|
|
7308 pixel_to_glyph_translation (struct frame *f, int x_coord, int y_coord,
|
|
|
7309 int *col, int *row, int *obj_x, int *obj_y,
|
|
|
7310 struct window **w, Bufpos *bufpos,
|
|
|
7311 Bufpos *closest, Charcount *modeline_closest,
|
|
|
7312 Lisp_Object *obj1, Lisp_Object *obj2)
|
|
|
7313 {
|
|
|
7314 struct device *d;
|
|
|
7315 struct pixel_to_glyph_translation_cache *cache;
|
|
|
7316 Lisp_Object window;
|
|
|
7317 int frm_left, frm_right, frm_top, frm_bottom;
|
|
|
7318 int low_x_coord, high_x_coord, low_y_coord, high_y_coord;
|
|
|
7319 int position = OVER_NOTHING;
|
|
|
7320 int device_check_failed = 0;
|
|
|
7321 display_line_dynarr *dla;
|
|
|
7322
|
|
|
7323 /* This is a safety valve in case this got called with a frame in
|
|
|
7324 the middle of being deleted. */
|
|
|
7325 if (!DEVICEP (f->device) || !DEVICE_LIVE_P (XDEVICE (f->device)))
|
|
173
|
7326 {
|
|
|
7327 device_check_failed = 1;
|
|
|
7328 d = NULL, cache = NULL; /* Warning suppression */
|
|
|
7329 }
|
|
0
|
7330 else
|
|
|
7331 {
|
|
|
7332 d = XDEVICE (f->device);
|
|
|
7333 cache = &d->pixel_to_glyph_cache;
|
|
|
7334 }
|
|
|
7335
|
|
|
7336 if (!device_check_failed
|
|
|
7337 && cache->valid
|
|
|
7338 && cache->frame == f
|
|
|
7339 && cache->low_x_coord <= x_coord
|
|
|
7340 && cache->high_x_coord > x_coord
|
|
|
7341 && cache->low_y_coord <= y_coord
|
|
|
7342 && cache->high_y_coord > y_coord)
|
|
|
7343 {
|
|
|
7344 *col = cache->col;
|
|
|
7345 *row = cache->row;
|
|
|
7346 *obj_x = cache->obj_x;
|
|
|
7347 *obj_y = cache->obj_y;
|
|
|
7348 *w = cache->w;
|
|
|
7349 *bufpos = cache->bufpos;
|
|
|
7350 *closest = cache->closest;
|
|
|
7351 *modeline_closest = cache->modeline_closest;
|
|
|
7352 *obj1 = cache->obj1;
|
|
|
7353 *obj2 = cache->obj2;
|
|
|
7354
|
|
|
7355 return cache->retval;
|
|
|
7356 }
|
|
|
7357 else
|
|
|
7358 {
|
|
|
7359 *col = 0;
|
|
|
7360 *row = 0;
|
|
|
7361 *obj_x = 0;
|
|
|
7362 *obj_y = 0;
|
|
|
7363 *w = 0;
|
|
|
7364 *bufpos = 0;
|
|
|
7365 *closest = 0;
|
|
|
7366 *modeline_closest = -1;
|
|
|
7367 *obj1 = Qnil;
|
|
|
7368 *obj2 = Qnil;
|
|
|
7369
|
|
|
7370 low_x_coord = x_coord;
|
|
|
7371 high_x_coord = x_coord + 1;
|
|
|
7372 low_y_coord = y_coord;
|
|
|
7373 high_y_coord = y_coord + 1;
|
|
|
7374 }
|
|
|
7375
|
|
|
7376 if (device_check_failed)
|
|
|
7377 return OVER_NOTHING;
|
|
|
7378
|
|
|
7379 frm_left = FRAME_LEFT_BORDER_END (f);
|
|
|
7380 frm_right = FRAME_RIGHT_BORDER_START (f);
|
|
|
7381 frm_top = FRAME_TOP_BORDER_END (f);
|
|
|
7382 frm_bottom = FRAME_BOTTOM_BORDER_START (f);
|
|
|
7383
|
|
|
7384 /* Check if the mouse is outside of the text area actually used by
|
|
|
7385 redisplay. */
|
|
|
7386 if (y_coord < frm_top)
|
|
|
7387 {
|
|
|
7388 if (y_coord >= FRAME_TOP_BORDER_START (f))
|
|
|
7389 {
|
|
|
7390 low_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
7391 high_y_coord = frm_top;
|
|
|
7392 position = OVER_BORDER;
|
|
|
7393 }
|
|
|
7394 else if (y_coord >= 0)
|
|
|
7395 {
|
|
|
7396 low_y_coord = 0;
|
|
|
7397 high_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
7398 position = OVER_TOOLBAR;
|
|
|
7399 }
|
|
|
7400 else
|
|
|
7401 {
|
|
|
7402 low_y_coord = y_coord;
|
|
|
7403 high_y_coord = 0;
|
|
|
7404 position = OVER_OUTSIDE;
|
|
|
7405 }
|
|
|
7406 }
|
|
|
7407 else if (y_coord >= frm_bottom)
|
|
|
7408 {
|
|
|
7409 if (y_coord < FRAME_BOTTOM_BORDER_END (f))
|
|
|
7410 {
|
|
|
7411 low_y_coord = frm_bottom;
|
|
|
7412 high_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
7413 position = OVER_BORDER;
|
|
|
7414 }
|
|
|
7415 else if (y_coord < FRAME_PIXHEIGHT (f))
|
|
|
7416 {
|
|
|
7417 low_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
7418 high_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
7419 position = OVER_TOOLBAR;
|
|
|
7420 }
|
|
|
7421 else
|
|
|
7422 {
|
|
|
7423 low_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
7424 high_y_coord = y_coord;
|
|
|
7425 position = OVER_OUTSIDE;
|
|
|
7426 }
|
|
|
7427 }
|
|
|
7428
|
|
|
7429 if (position != OVER_TOOLBAR && position != OVER_BORDER)
|
|
|
7430 {
|
|
|
7431 if (x_coord < frm_left)
|
|
|
7432 {
|
|
|
7433 if (x_coord >= FRAME_LEFT_BORDER_START (f))
|
|
|
7434 {
|
|
|
7435 low_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
7436 high_x_coord = frm_left;
|
|
|
7437 position = OVER_BORDER;
|
|
|
7438 }
|
|
|
7439 else if (x_coord >= 0)
|
|
|
7440 {
|
|
|
7441 low_x_coord = 0;
|
|
|
7442 high_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
7443 position = OVER_TOOLBAR;
|
|
|
7444 }
|
|
|
7445 else
|
|
|
7446 {
|
|
|
7447 low_x_coord = x_coord;
|
|
|
7448 high_x_coord = 0;
|
|
|
7449 position = OVER_OUTSIDE;
|
|
|
7450 }
|
|
|
7451 }
|
|
|
7452 else if (x_coord >= frm_right)
|
|
|
7453 {
|
|
|
7454 if (x_coord < FRAME_RIGHT_BORDER_END (f))
|
|
|
7455 {
|
|
|
7456 low_x_coord = frm_right;
|
|
|
7457 high_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
7458 position = OVER_BORDER;
|
|
|
7459 }
|
|
|
7460 else if (x_coord < FRAME_PIXWIDTH (f))
|
|
|
7461 {
|
|
|
7462 low_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
7463 high_x_coord = FRAME_PIXWIDTH (f);
|
|
|
7464 position = OVER_TOOLBAR;
|
|
|
7465 }
|
|
|
7466 else
|
|
|
7467 {
|
|
|
7468 low_x_coord = FRAME_PIXWIDTH (f);
|
|
|
7469 high_x_coord = x_coord;
|
|
|
7470 position = OVER_OUTSIDE;
|
|
|
7471 }
|
|
|
7472 }
|
|
|
7473 }
|
|
|
7474
|
|
|
7475 #ifdef HAVE_TOOLBARS
|
|
|
7476 if (position == OVER_TOOLBAR)
|
|
|
7477 {
|
|
|
7478 *obj1 = toolbar_button_at_pixpos (f, x_coord, y_coord);
|
|
|
7479 *obj2 = Qnil;
|
|
|
7480 *w = 0;
|
|
|
7481 UPDATE_CACHE_RETURN;
|
|
|
7482 }
|
|
183
|
7483 #endif /* HAVE_TOOLBARS */
|
|
0
|
7484
|
|
|
7485 /* We still have to return the window the pointer is next to and its
|
|
|
7486 relative y position even if it is outside the x boundary. */
|
|
|
7487 if (x_coord < frm_left)
|
|
|
7488 x_coord = frm_left;
|
|
|
7489 else if (x_coord > frm_right)
|
|
|
7490 x_coord = frm_right;
|
|
|
7491
|
|
|
7492 /* Same in reverse. */
|
|
|
7493 if (y_coord < frm_top)
|
|
|
7494 y_coord = frm_top;
|
|
|
7495 else if (y_coord > frm_bottom)
|
|
|
7496 y_coord = frm_bottom;
|
|
|
7497
|
|
|
7498 /* Find what window the given coordinates are actually in. */
|
|
|
7499 window = f->root_window;
|
|
|
7500 *w = find_window_by_pixel_pos (x_coord, y_coord, window);
|
|
|
7501
|
|
|
7502 /* If we didn't find a window, we're done. */
|
|
|
7503 if (!*w)
|
|
|
7504 {
|
|
|
7505 UPDATE_CACHE_RETURN;
|
|
|
7506 }
|
|
|
7507 else if (position != OVER_NOTHING)
|
|
|
7508 {
|
|
|
7509 *closest = 0;
|
|
|
7510 *modeline_closest = -1;
|
|
|
7511
|
|
|
7512 if (high_y_coord <= frm_top || high_y_coord >= frm_bottom)
|
|
|
7513 {
|
|
|
7514 *w = 0;
|
|
|
7515 UPDATE_CACHE_RETURN;
|
|
|
7516 }
|
|
|
7517 }
|
|
|
7518
|
|
|
7519 /* Check if the window is a minibuffer but isn't active. */
|
|
|
7520 if (MINI_WINDOW_P (*w) && !minibuf_level)
|
|
|
7521 {
|
|
|
7522 /* Must reset the window value since some callers will ignore
|
|
|
7523 the return value if it is set. */
|
|
|
7524 *w = 0;
|
|
|
7525 UPDATE_CACHE_RETURN;
|
|
|
7526 }
|
|
|
7527
|
|
|
7528 dla = window_display_lines (*w, CURRENT_DISP);
|
|
|
7529
|
|
|
7530 for (*row = 0; *row < Dynarr_length (dla); (*row)++)
|
|
|
7531 {
|
|
|
7532 int really_over_nothing = 0;
|
|
|
7533 struct display_line *dl = Dynarr_atp (dla, *row);
|
|
|
7534
|
|
|
7535 if ((int) (dl->ypos - dl->ascent) <= y_coord
|
|
|
7536 && y_coord <= (int) (dl->ypos + dl->descent))
|
|
|
7537 {
|
|
|
7538 int check_margin_glyphs = 0;
|
|
|
7539 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
7540 struct rune *rb = 0;
|
|
|
7541
|
|
|
7542 if (x_coord < dl->bounds.left_white
|
|
|
7543 || x_coord >= dl->bounds.right_white)
|
|
|
7544 check_margin_glyphs = 1;
|
|
|
7545
|
|
|
7546 low_y_coord = dl->ypos - dl->ascent;
|
|
|
7547 high_y_coord = dl->ypos + dl->descent + 1;
|
|
|
7548
|
|
|
7549 if (position == OVER_BORDER
|
|
|
7550 || position == OVER_OUTSIDE
|
|
|
7551 || check_margin_glyphs)
|
|
|
7552 {
|
|
|
7553 int x_check, left_bound;
|
|
|
7554
|
|
|
7555 if (check_margin_glyphs)
|
|
|
7556 {
|
|
|
7557 x_check = x_coord;
|
|
|
7558 left_bound = dl->bounds.left_white;
|
|
|
7559 }
|
|
|
7560 else
|
|
|
7561 {
|
|
|
7562 x_check = high_x_coord;
|
|
|
7563 left_bound = frm_left;
|
|
|
7564 }
|
|
|
7565
|
|
|
7566 if (Dynarr_length (db->runes))
|
|
|
7567 {
|
|
|
7568 if (x_check <= left_bound)
|
|
|
7569 {
|
|
|
7570 if (dl->modeline)
|
|
|
7571 *modeline_closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
7572 else
|
|
|
7573 *closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
7574 }
|
|
|
7575 else
|
|
|
7576 {
|
|
|
7577 if (dl->modeline)
|
|
|
7578 *modeline_closest =
|
|
|
7579 Dynarr_atp (db->runes,
|
|
|
7580 Dynarr_length (db->runes) - 1)->bufpos;
|
|
|
7581 else
|
|
|
7582 *closest =
|
|
|
7583 Dynarr_atp (db->runes,
|
|
183
|
7584 Dynarr_length (db->runes) - 1)->bufpos;
|
|
0
|
7585 }
|
|
|
7586
|
|
|
7587 if (dl->modeline)
|
|
|
7588 *modeline_closest += dl->offset;
|
|
|
7589 else
|
|
|
7590 *closest += dl->offset;
|
|
|
7591 }
|
|
|
7592 else
|
|
|
7593 {
|
|
|
7594 /* #### What should be here. */
|
|
|
7595 if (dl->modeline)
|
|
|
7596 *modeline_closest = 0;
|
|
|
7597 else
|
|
|
7598 *closest = 0;
|
|
|
7599 }
|
|
|
7600
|
|
|
7601 if (check_margin_glyphs)
|
|
|
7602 {
|
|
|
7603 if (x_coord < dl->bounds.left_in
|
|
|
7604 || x_coord >= dl->bounds.right_in)
|
|
|
7605 {
|
|
|
7606 /* If we are over the outside margins then we
|
|
|
7607 know the loop over the text block isn't going
|
|
|
7608 to accomplish anything. So we go ahead and
|
|
|
7609 set what information we can right here and
|
|
|
7610 return. */
|
|
|
7611 (*row)--;
|
|
|
7612 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
7613 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
7614 &low_x_coord, &high_x_coord);
|
|
|
7615
|
|
|
7616 UPDATE_CACHE_RETURN;
|
|
|
7617 }
|
|
|
7618 }
|
|
|
7619 else
|
|
|
7620 UPDATE_CACHE_RETURN;
|
|
|
7621 }
|
|
|
7622
|
|
|
7623 for (*col = 0; *col <= Dynarr_length (db->runes); (*col)++)
|
|
|
7624 {
|
|
|
7625 int past_end = (*col == Dynarr_length (db->runes));
|
|
|
7626
|
|
|
7627 if (!past_end)
|
|
|
7628 rb = Dynarr_atp (db->runes, *col);
|
|
|
7629
|
|
|
7630 if (past_end ||
|
|
|
7631 (rb->xpos <= x_coord && x_coord < rb->xpos + rb->width))
|
|
|
7632 {
|
|
|
7633 if (past_end)
|
|
|
7634 {
|
|
|
7635 (*col)--;
|
|
|
7636 rb = Dynarr_atp (db->runes, *col);
|
|
|
7637 }
|
|
|
7638
|
|
|
7639 *bufpos = rb->bufpos + dl->offset;
|
|
|
7640 low_x_coord = rb->xpos;
|
|
|
7641 high_x_coord = rb->xpos + rb->width;
|
|
|
7642
|
|
|
7643 if (rb->type == RUNE_DGLYPH)
|
|
|
7644 {
|
|
|
7645 int elt = *col + 1;
|
|
|
7646
|
|
|
7647 /* Find the first character after the glyph. */
|
|
|
7648 while (elt < Dynarr_length (db->runes))
|
|
|
7649 {
|
|
|
7650 if (Dynarr_atp (db->runes, elt)->type != RUNE_DGLYPH)
|
|
|
7651 {
|
|
|
7652 if (dl->modeline)
|
|
|
7653 *modeline_closest =
|
|
|
7654 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
7655 dl->offset);
|
|
|
7656 else
|
|
|
7657 *closest =
|
|
|
7658 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
7659 dl->offset);
|
|
|
7660 break;
|
|
|
7661 }
|
|
|
7662
|
|
|
7663 elt++;
|
|
|
7664 }
|
|
|
7665
|
|
|
7666 /* In this case we failed to find a non-glyph
|
|
|
7667 character so we return the last position
|
|
|
7668 displayed on the line. */
|
|
|
7669 if (elt == Dynarr_length (db->runes))
|
|
|
7670 {
|
|
|
7671 if (dl->modeline)
|
|
|
7672 *modeline_closest = dl->end_bufpos + dl->offset;
|
|
|
7673 else
|
|
|
7674 *closest = dl->end_bufpos + dl->offset;
|
|
|
7675 really_over_nothing = 1;
|
|
183
|
7676 }
|
|
0
|
7677 }
|
|
|
7678 else
|
|
|
7679 {
|
|
|
7680 if (dl->modeline)
|
|
|
7681 *modeline_closest = rb->bufpos + dl->offset;
|
|
|
7682 else
|
|
|
7683 *closest = rb->bufpos + dl->offset;
|
|
|
7684 }
|
|
|
7685
|
|
|
7686 if (dl->modeline)
|
|
|
7687 {
|
|
|
7688 *row = window_displayed_height (*w);
|
|
|
7689
|
|
|
7690 if (position == OVER_NOTHING)
|
|
|
7691 position = OVER_MODELINE;
|
|
|
7692
|
|
|
7693 if (rb->type == RUNE_DGLYPH)
|
|
|
7694 {
|
|
|
7695 *obj1 = rb->object.dglyph.glyph;
|
|
|
7696 *obj2 = rb->object.dglyph.extent;
|
|
|
7697 }
|
|
|
7698 else if (rb->type == RUNE_CHAR)
|
|
|
7699 {
|
|
|
7700 *obj1 = Qnil;
|
|
|
7701 *obj2 = Qnil;
|
|
|
7702 }
|
|
|
7703 else
|
|
|
7704 {
|
|
|
7705 *obj1 = Qnil;
|
|
|
7706 *obj2 = Qnil;
|
|
|
7707 }
|
|
|
7708
|
|
|
7709 UPDATE_CACHE_RETURN;
|
|
|
7710 }
|
|
|
7711 else if (past_end
|
|
|
7712 || (rb->type == RUNE_CHAR
|
|
|
7713 && rb->object.chr.ch == '\n'))
|
|
|
7714 {
|
|
|
7715 (*row)--;
|
|
|
7716 /* At this point we may have glyphs in the right
|
|
|
7717 inside margin. */
|
|
|
7718 if (check_margin_glyphs)
|
|
|
7719 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
7720 &low_x_coord, &high_x_coord);
|
|
|
7721 UPDATE_CACHE_RETURN;
|
|
|
7722 }
|
|
|
7723 else
|
|
|
7724 {
|
|
|
7725 (*row)--;
|
|
|
7726 if (rb->type == RUNE_DGLYPH)
|
|
|
7727 {
|
|
|
7728 *obj1 = rb->object.dglyph.glyph;
|
|
|
7729 *obj2 = rb->object.dglyph.extent;
|
|
|
7730 }
|
|
|
7731 else if (rb->type == RUNE_CHAR)
|
|
|
7732 {
|
|
|
7733 *obj1 = Qnil;
|
|
|
7734 *obj2 = Qnil;
|
|
|
7735 }
|
|
|
7736 else
|
|
|
7737 {
|
|
|
7738 *obj1 = Qnil;
|
|
|
7739 *obj2 = Qnil;
|
|
|
7740 }
|
|
|
7741
|
|
|
7742 *obj_x = x_coord - rb->xpos;
|
|
|
7743 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
7744
|
|
|
7745 /* At this point we may have glyphs in the left
|
|
|
7746 inside margin. */
|
|
|
7747 if (check_margin_glyphs)
|
|
|
7748 get_position_object (dl, obj1, obj2, x_coord, 0, 0);
|
|
|
7749
|
|
|
7750 if (position == OVER_NOTHING && !really_over_nothing)
|
|
|
7751 position = OVER_TEXT;
|
|
|
7752
|
|
|
7753 UPDATE_CACHE_RETURN;
|
|
|
7754 }
|
|
|
7755 }
|
|
|
7756 }
|
|
|
7757 }
|
|
|
7758 }
|
|
|
7759
|
|
|
7760 *row = Dynarr_length (dla) - 1;
|
|
|
7761 if (FRAME_WIN_P (f))
|
|
|
7762 {
|
|
|
7763 int bot_elt = Dynarr_length (dla) - 1;
|
|
|
7764
|
|
|
7765 if (bot_elt >= 0)
|
|
|
7766 {
|
|
|
7767 struct display_line *dl = Dynarr_atp (dla, bot_elt);
|
|
|
7768 int adj_area = y_coord - (dl->ypos + dl->descent);
|
|
|
7769 Lisp_Object lwin = Qnil;
|
|
|
7770 int defheight;
|
|
|
7771
|
|
|
7772 XSETWINDOW (lwin, *w);
|
|
|
7773 default_face_height_and_width (lwin, 0, &defheight);
|
|
|
7774
|
|
|
7775 *row += (adj_area / defheight);
|
|
|
7776 }
|
|
|
7777 }
|
|
|
7778
|
|
|
7779 /* #### This should be checked out some more to determine what
|
|
|
7780 should really be going on. */
|
|
|
7781 if (!MARKERP ((*w)->start[CURRENT_DISP]))
|
|
|
7782 *closest = 0;
|
|
|
7783 else
|
|
|
7784 *closest = end_of_last_line (*w,
|
|
|
7785 marker_position ((*w)->start[CURRENT_DISP]));
|
|
|
7786 *col = 0;
|
|
|
7787 UPDATE_CACHE_RETURN;
|
|
|
7788 }
|
|
|
7789 #undef UPDATE_CACHE_RETURN
|
|
|
7790
|
|
|
7791
|
|
|
7792 /***************************************************************************/
|
|
|
7793 /* */
|
|
|
7794 /* Lisp functions */
|
|
|
7795 /* */
|
|
|
7796 /***************************************************************************/
|
|
|
7797
|
|
20
|
7798 DEFUN ("redisplay-echo-area", Fredisplay_echo_area, 0, 0, 0, /*
|
|
0
|
7799 Ensure that all minibuffers are correctly showing the echo area.
|
|
20
|
7800 */
|
|
|
7801 ())
|
|
0
|
7802 {
|
|
|
7803 Lisp_Object devcons, concons;
|
|
|
7804
|
|
|
7805 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
7806 {
|
|
|
7807 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
7808 Lisp_Object frmcons;
|
|
|
7809
|
|
|
7810 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
7811 {
|
|
|
7812 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
7813
|
|
108
|
7814 if (FRAME_REPAINT_P (f) && FRAME_HAS_MINIBUF_P (f))
|
|
0
|
7815 {
|
|
|
7816 Lisp_Object window = FRAME_MINIBUF_WINDOW (f);
|
|
215
|
7817 /*
|
|
217
|
7818 * If the frame size has changed, there may be random
|
|
|
7819 * chud on the screen left from previous messages
|
|
|
7820 * because redisplay_frame hasn't been called yet.
|
|
|
7821 * Clear the screen to get rid of the potential mess.
|
|
215
|
7822 */
|
|
217
|
7823 if (f->echo_area_garbaged)
|
|
|
7824 {
|
|
|
7825 DEVMETH (d, clear_frame, (f));
|
|
|
7826 f->echo_area_garbaged = 0;
|
|
|
7827 }
|
|
0
|
7828 redisplay_window (window, 0);
|
|
|
7829 call_redisplay_end_triggers (XWINDOW (window), 0);
|
|
|
7830 }
|
|
|
7831 }
|
|
|
7832
|
|
|
7833 /* We now call the output_end routine for tty frames. We delay
|
|
|
7834 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
7835 encapsulation. */
|
|
|
7836 if (DEVICE_TTY_P (d))
|
|
|
7837 DEVMETH (d, output_end, (d));
|
|
|
7838 }
|
|
|
7839
|
|
|
7840 return Qnil;
|
|
|
7841 }
|
|
|
7842
|
|
|
7843 static Lisp_Object
|
|
|
7844 restore_disable_preemption_value (Lisp_Object value)
|
|
|
7845 {
|
|
|
7846 disable_preemption = XINT (value);
|
|
|
7847 return Qnil;
|
|
|
7848 }
|
|
|
7849
|
|
20
|
7850 DEFUN ("redraw-frame", Fredraw_frame, 0, 2, 0, /*
|
|
0
|
7851 Clear frame FRAME and output again what is supposed to appear on it.
|
|
|
7852 FRAME defaults to the selected frame if omitted.
|
|
|
7853 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
7854 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
7855 input and is guaranteed to proceed to completion.
|
|
20
|
7856 */
|
|
|
7857 (frame, no_preempt))
|
|
0
|
7858 {
|
|
|
7859 struct frame *f = decode_frame (frame);
|
|
|
7860 int count = specpdl_depth ();
|
|
|
7861
|
|
|
7862 if (!NILP (no_preempt))
|
|
|
7863 {
|
|
|
7864 record_unwind_protect (restore_disable_preemption_value,
|
|
|
7865 make_int (disable_preemption));
|
|
|
7866 disable_preemption++;
|
|
|
7867 }
|
|
|
7868
|
|
|
7869 f->clear = 1;
|
|
|
7870 redisplay_frame (f, 1);
|
|
|
7871
|
|
|
7872 return unbind_to (count, Qnil);
|
|
|
7873 }
|
|
|
7874
|
|
20
|
7875 DEFUN ("redisplay-frame", Fredisplay_frame, 0, 2, 0, /*
|
|
0
|
7876 Ensure that FRAME's contents are correctly displayed.
|
|
|
7877 This differs from `redraw-frame' in that it only redraws what needs to
|
|
|
7878 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
7879 the frame.
|
|
|
7880 FRAME defaults to the selected frame if omitted.
|
|
|
7881 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
7882 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
7883 input and is guaranteed to proceed to completion.
|
|
20
|
7884 */
|
|
|
7885 (frame, no_preempt))
|
|
0
|
7886 {
|
|
|
7887 struct frame *f = decode_frame (frame);
|
|
|
7888 int count = specpdl_depth ();
|
|
|
7889
|
|
|
7890 if (!NILP (no_preempt))
|
|
|
7891 {
|
|
|
7892 record_unwind_protect (restore_disable_preemption_value,
|
|
|
7893 make_int (disable_preemption));
|
|
|
7894 disable_preemption++;
|
|
|
7895 }
|
|
|
7896
|
|
|
7897 redisplay_frame (f, 1);
|
|
|
7898
|
|
|
7899 return unbind_to (count, Qnil);
|
|
|
7900 }
|
|
|
7901
|
|
20
|
7902 DEFUN ("redraw-device", Fredraw_device, 0, 2, 0, /*
|
|
0
|
7903 Clear device DEVICE and output again what is supposed to appear on it.
|
|
|
7904 DEVICE defaults to the selected device if omitted.
|
|
|
7905 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
7906 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
7907 input and is guaranteed to proceed to completion.
|
|
20
|
7908 */
|
|
70
|
7909 (device, no_preempt))
|
|
0
|
7910 {
|
|
|
7911 struct device *d = decode_device (device);
|
|
|
7912 Lisp_Object frmcons;
|
|
|
7913 int count = specpdl_depth ();
|
|
|
7914
|
|
|
7915 if (!NILP (no_preempt))
|
|
|
7916 {
|
|
|
7917 record_unwind_protect (restore_disable_preemption_value,
|
|
|
7918 make_int (disable_preemption));
|
|
|
7919 disable_preemption++;
|
|
|
7920 }
|
|
|
7921
|
|
|
7922 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
7923 {
|
|
|
7924 XFRAME (XCAR (frmcons))->clear = 1;
|
|
|
7925 }
|
|
|
7926 redisplay_device (d);
|
|
|
7927
|
|
|
7928 return unbind_to (count, Qnil);
|
|
|
7929 }
|
|
|
7930
|
|
20
|
7931 DEFUN ("redisplay-device", Fredisplay_device, 0, 2, 0, /*
|
|
0
|
7932 Ensure that DEVICE's contents are correctly displayed.
|
|
|
7933 This differs from `redraw-device' in that it only redraws what needs to
|
|
|
7934 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
7935 the device.
|
|
|
7936 DEVICE defaults to the selected device if omitted.
|
|
|
7937 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
7938 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
7939 input and is guaranteed to proceed to completion.
|
|
20
|
7940 */
|
|
|
7941 (device, no_preempt))
|
|
0
|
7942 {
|
|
|
7943 struct device *d = decode_device (device);
|
|
|
7944 int count = specpdl_depth ();
|
|
|
7945
|
|
|
7946 if (!NILP (no_preempt))
|
|
|
7947 {
|
|
|
7948 record_unwind_protect (restore_disable_preemption_value,
|
|
|
7949 make_int (disable_preemption));
|
|
|
7950 disable_preemption++;
|
|
|
7951 }
|
|
|
7952
|
|
|
7953 redisplay_device (d);
|
|
|
7954
|
|
|
7955 return unbind_to (count, Qnil);
|
|
|
7956 }
|
|
|
7957
|
|
|
7958 /* Big lie. Big lie. This will force all modelines to be updated
|
|
|
7959 regardless if the all flag is set or not. It remains in existence
|
|
|
7960 solely for backwards compatibility. */
|
|
20
|
7961 DEFUN ("redraw-modeline", Fredraw_modeline, 0, 1, 0, /*
|
|
0
|
7962 Force the modeline of the current buffer to be redisplayed.
|
|
|
7963 With optional non-nil ALL, force redisplay of all modelines.
|
|
20
|
7964 */
|
|
|
7965 (all))
|
|
0
|
7966 {
|
|
|
7967 MARK_MODELINE_CHANGED;
|
|
|
7968 return Qnil;
|
|
|
7969 }
|
|
|
7970
|
|
20
|
7971 DEFUN ("force-cursor-redisplay", Fforce_cursor_redisplay, 0, 1, 0, /*
|
|
0
|
7972 Force an immediate update of the cursor on FRAME.
|
|
|
7973 FRAME defaults to the selected frame if omitted.
|
|
20
|
7974 */
|
|
70
|
7975 (frame))
|
|
0
|
7976 {
|
|
|
7977 redisplay_redraw_cursor (decode_frame (frame), 1);
|
|
|
7978 return Qnil;
|
|
|
7979 }
|
|
|
7980
|
|
|
7981
|
|
|
7982 /***************************************************************************/
|
|
|
7983 /* */
|
|
|
7984 /* Lisp-variable change triggers */
|
|
|
7985 /* */
|
|
|
7986 /***************************************************************************/
|
|
|
7987
|
|
|
7988 static void
|
|
|
7989 margin_width_changed_in_frame (Lisp_Object specifier, struct frame *f,
|
|
|
7990 Lisp_Object oldval)
|
|
|
7991 {
|
|
|
7992 /* Nothing to be done? */
|
|
|
7993 }
|
|
|
7994
|
|
|
7995 int
|
|
|
7996 redisplay_variable_changed (Lisp_Object sym, Lisp_Object *val,
|
|
|
7997 Lisp_Object in_object, int flags)
|
|
|
7998 {
|
|
|
7999 /* #### clip_changed should really be renamed something like
|
|
|
8000 global_redisplay_change. */
|
|
|
8001 MARK_CLIP_CHANGED;
|
|
|
8002 return 0;
|
|
|
8003 }
|
|
|
8004
|
|
|
8005 void
|
|
|
8006 redisplay_glyph_changed (Lisp_Object glyph, Lisp_Object property,
|
|
|
8007 Lisp_Object locale)
|
|
|
8008 {
|
|
|
8009 MARK_CLIP_CHANGED;
|
|
|
8010 }
|
|
|
8011
|
|
|
8012 static void
|
|
|
8013 text_cursor_visible_p_changed (Lisp_Object specifier, struct window *w,
|
|
|
8014 Lisp_Object oldval)
|
|
|
8015 {
|
|
|
8016 if (XFRAME (w->frame)->init_finished)
|
|
|
8017 Fforce_cursor_redisplay (w->frame);
|
|
|
8018 }
|
|
|
8019
|
|
|
8020 #ifdef MEMORY_USAGE_STATS
|
|
|
8021
|
|
|
8022
|
|
|
8023 /***************************************************************************/
|
|
|
8024 /* */
|
|
|
8025 /* memory usage computation */
|
|
|
8026 /* */
|
|
|
8027 /***************************************************************************/
|
|
|
8028
|
|
|
8029 static int
|
|
|
8030 compute_rune_dynarr_usage (rune_dynarr *dyn, struct overhead_stats *ovstats)
|
|
|
8031 {
|
|
183
|
8032 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
8033 }
|
|
|
8034
|
|
|
8035 static int
|
|
|
8036 compute_display_block_dynarr_usage (display_block_dynarr *dyn,
|
|
|
8037 struct overhead_stats *ovstats)
|
|
|
8038 {
|
|
183
|
8039 int total, i;
|
|
|
8040
|
|
|
8041 if (!dyn)
|
|
|
8042 return 0;
|
|
|
8043
|
|
|
8044 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
8045 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
8046 total += compute_rune_dynarr_usage (Dynarr_at (dyn, i).runes, ovstats);
|
|
0
|
8047
|
|
|
8048 return total;
|
|
|
8049 }
|
|
|
8050
|
|
|
8051 static int
|
|
|
8052 compute_glyph_block_dynarr_usage (glyph_block_dynarr *dyn,
|
|
|
8053 struct overhead_stats *ovstats)
|
|
|
8054 {
|
|
183
|
8055 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
8056 }
|
|
|
8057
|
|
|
8058 int
|
|
|
8059 compute_display_line_dynarr_usage (display_line_dynarr *dyn,
|
|
|
8060 struct overhead_stats *ovstats)
|
|
|
8061 {
|
|
183
|
8062 int total, i;
|
|
|
8063
|
|
|
8064 if (!dyn)
|
|
|
8065 return 0;
|
|
|
8066
|
|
|
8067 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
8068 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
8069 {
|
|
|
8070 struct display_line *dl = &Dynarr_at (dyn, i);
|
|
|
8071 total += compute_display_block_dynarr_usage(dl->display_blocks, ovstats);
|
|
|
8072 total += compute_glyph_block_dynarr_usage (dl->left_glyphs, ovstats);
|
|
|
8073 total += compute_glyph_block_dynarr_usage (dl->right_glyphs, ovstats);
|
|
0
|
8074 }
|
|
|
8075
|
|
|
8076 return total;
|
|
|
8077 }
|
|
|
8078
|
|
|
8079 int
|
|
|
8080 compute_line_start_cache_dynarr_usage (line_start_cache_dynarr *dyn,
|
|
|
8081 struct overhead_stats *ovstats)
|
|
|
8082 {
|
|
183
|
8083 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
0
|
8084 }
|
|
|
8085
|
|
|
8086 #endif /* MEMORY_USAGE_STATS */
|
|
|
8087
|
|
|
8088
|
|
|
8089 /***************************************************************************/
|
|
|
8090 /* */
|
|
|
8091 /* initialization */
|
|
|
8092 /* */
|
|
|
8093 /***************************************************************************/
|
|
|
8094
|
|
|
8095 void
|
|
|
8096 init_redisplay (void)
|
|
|
8097 {
|
|
|
8098 disable_preemption = 0;
|
|
|
8099 preemption_count = 0;
|
|
|
8100 max_preempts = INIT_MAX_PREEMPTS;
|
|
|
8101
|
|
|
8102 if (!initialized)
|
|
|
8103 {
|
|
185
|
8104 cmotion_display_lines = Dynarr_new (display_line);
|
|
0
|
8105 mode_spec_bufbyte_string = Dynarr_new (Bufbyte);
|
|
|
8106 formatted_string_emchar_dynarr = Dynarr_new (Emchar);
|
|
185
|
8107 formatted_string_extent_dynarr = Dynarr_new (EXTENT);
|
|
0
|
8108 formatted_string_extent_start_dynarr = Dynarr_new (Bytecount);
|
|
|
8109 formatted_string_extent_end_dynarr = Dynarr_new (Bytecount);
|
|
185
|
8110 internal_cache = Dynarr_new (line_start_cache);
|
|
0
|
8111 memset (&formatted_string_display_line, 0, sizeof (struct display_line));
|
|
|
8112 }
|
|
|
8113
|
|
|
8114 /* window system is nil when in -batch mode */
|
|
|
8115 if (!initialized || noninteractive)
|
|
|
8116 return;
|
|
|
8117
|
|
|
8118 /* If the user wants to use a window system, we shouldn't bother
|
|
|
8119 initializing the terminal. This is especially important when the
|
|
|
8120 terminal is so dumb that emacs gives up before and doesn't bother
|
|
|
8121 using the window system.
|
|
|
8122
|
|
|
8123 If the DISPLAY environment variable is set, try to use X, and die
|
|
|
8124 with an error message if that doesn't work. */
|
|
|
8125
|
|
|
8126 #ifdef HAVE_X_WINDOWS
|
|
|
8127 if (!strcmp (display_use, "x"))
|
|
|
8128 {
|
|
|
8129 /* Some stuff checks this way early. */
|
|
|
8130 Vwindow_system = Qx;
|
|
|
8131 Vinitial_window_system = Qx;
|
|
|
8132 return;
|
|
|
8133 }
|
|
183
|
8134 #endif /* HAVE_X_WINDOWS */
|
|
0
|
8135
|
|
213
|
8136 #ifdef HAVE_MS_WINDOWS
|
|
|
8137 if (!strcmp (display_use, "mswindows"))
|
|
209
|
8138 {
|
|
|
8139 /* Some stuff checks this way early. */
|
|
213
|
8140 Vwindow_system = Qmswindows;
|
|
|
8141 Vinitial_window_system = Qmswindows;
|
|
209
|
8142 return;
|
|
|
8143 }
|
|
213
|
8144 #endif /* HAVE_MS_WINDOWS */
|
|
|
8145
|
|
|
8146 #ifdef HAVE_TTY
|
|
0
|
8147 /* If no window system has been specified, try to use the terminal. */
|
|
|
8148 if (!isatty (0))
|
|
|
8149 {
|
|
|
8150 stderr_out ("XEmacs: standard input is not a tty\n");
|
|
|
8151 exit (1);
|
|
|
8152 }
|
|
|
8153
|
|
|
8154 /* Look at the TERM variable */
|
|
|
8155 if (!getenv ("TERM"))
|
|
|
8156 {
|
|
|
8157 stderr_out ("Please set the environment variable TERM; see tset(1).\n");
|
|
|
8158 exit (1);
|
|
|
8159 }
|
|
|
8160
|
|
|
8161 Vinitial_window_system = Qtty;
|
|
213
|
8162 return;
|
|
|
8163 #else /* not HAVE_TTY */
|
|
|
8164 /* No DISPLAY specified, and no TTY support. */
|
|
|
8165 stderr_out ("XEmacs: Cannot open display.\n\
|
|
|
8166 Please set the environmental variable DISPLAY to an appropriate value.\n");
|
|
|
8167 exit (1);
|
|
|
8168 #endif
|
|
|
8169 /* Unreached. */
|
|
0
|
8170 }
|
|
|
8171
|
|
|
8172 void
|
|
|
8173 syms_of_redisplay (void)
|
|
|
8174 {
|
|
|
8175 defsymbol (&Qcursor_in_echo_area, "cursor-in-echo-area");
|
|
|
8176 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
8177 defsymbol (&Qpre_redisplay_hook, "pre-redisplay-hook");
|
|
|
8178 defsymbol (&Qpost_redisplay_hook, "post-redisplay-hook");
|
|
183
|
8179 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
8180 defsymbol (&Qdisplay_warning_buffer, "display-warning-buffer");
|
|
|
8181 defsymbol (&Qbar_cursor, "bar-cursor");
|
|
|
8182 defsymbol (&Qwindow_scroll_functions, "window-scroll-functions");
|
|
|
8183 defsymbol (&Qredisplay_end_trigger_functions,
|
|
|
8184 "redisplay-end-trigger-functions");
|
|
|
8185
|
|
20
|
8186 DEFSUBR (Fredisplay_echo_area);
|
|
|
8187 DEFSUBR (Fredraw_frame);
|
|
|
8188 DEFSUBR (Fredisplay_frame);
|
|
|
8189 DEFSUBR (Fredraw_device);
|
|
|
8190 DEFSUBR (Fredisplay_device);
|
|
|
8191 DEFSUBR (Fredraw_modeline);
|
|
|
8192 DEFSUBR (Fforce_cursor_redisplay);
|
|
0
|
8193 }
|
|
|
8194
|
|
|
8195 void
|
|
|
8196 vars_of_redisplay (void)
|
|
|
8197 {
|
|
|
8198 #if 0
|
|
|
8199 staticpro (&last_arrow_position);
|
|
|
8200 staticpro (&last_arrow_string);
|
|
|
8201 last_arrow_position = Qnil;
|
|
|
8202 last_arrow_string = Qnil;
|
|
183
|
8203 #endif /* 0 */
|
|
0
|
8204
|
|
|
8205 updating_line_start_cache = 0;
|
|
|
8206
|
|
|
8207 /* #### Probably temporary */
|
|
|
8208 DEFVAR_INT ("redisplay-cache-adjustment", &cache_adjustment /*
|
|
|
8209 (Temporary) Setting this will impact the performance of the internal
|
|
|
8210 line start cache.
|
|
|
8211 */ );
|
|
|
8212 cache_adjustment = 2;
|
|
|
8213
|
|
|
8214 DEFVAR_INT_MAGIC ("pixel-vertical-clip-threshold", &vertical_clip /*
|
|
|
8215 Minimum pixel height for clipped bottom display line.
|
|
|
8216 A clipped line shorter than this won't be displayed.
|
|
|
8217 */ ,
|
|
|
8218 redisplay_variable_changed);
|
|
|
8219 vertical_clip = 5;
|
|
|
8220
|
|
|
8221 DEFVAR_INT_MAGIC ("pixel-horizontal-clip-threshold", &horizontal_clip /*
|
|
|
8222 Minimum visible area for clipped glyphs at right boundary.
|
|
|
8223 Clipped glyphs shorter than this won't be displayed.
|
|
|
8224 Only pixmap glyph instances are currently allowed to be clipped.
|
|
|
8225 */ ,
|
|
|
8226 redisplay_variable_changed);
|
|
|
8227 horizontal_clip = 5;
|
|
|
8228
|
|
|
8229 DEFVAR_LISP ("global-mode-string", &Vglobal_mode_string /*
|
|
185
|
8230 String displayed by modeline-format's "%m" specification.
|
|
0
|
8231 */ );
|
|
|
8232 Vglobal_mode_string = Qnil;
|
|
|
8233
|
|
|
8234 DEFVAR_LISP_MAGIC ("overlay-arrow-position", &Voverlay_arrow_position /*
|
|
|
8235 Marker for where to display an arrow on top of the buffer text.
|
|
|
8236 This must be the beginning of a line in order to work.
|
|
|
8237 See also `overlay-arrow-string'.
|
|
|
8238 */ , redisplay_variable_changed);
|
|
|
8239 Voverlay_arrow_position = Qnil;
|
|
|
8240
|
|
|
8241 DEFVAR_LISP_MAGIC ("overlay-arrow-string", &Voverlay_arrow_string /*
|
|
|
8242 String to display as an arrow. See also `overlay-arrow-position'.
|
|
|
8243 */ ,
|
|
|
8244 redisplay_variable_changed);
|
|
|
8245 Voverlay_arrow_string = Qnil;
|
|
|
8246
|
|
|
8247 DEFVAR_INT ("scroll-step", &scroll_step /*
|
|
|
8248 *The number of lines to try scrolling a window by when point moves out.
|
|
|
8249 If that fails to bring point back on frame, point is centered instead.
|
|
|
8250 If this is zero, point is always centered after it moves off screen.
|
|
|
8251 */ );
|
|
195
|
8252 scroll_step = 0;
|
|
|
8253
|
|
|
8254 DEFVAR_INT ("scroll-conservatively", &scroll_conservatively /*
|
|
|
8255 *Scroll up to this many lines, to bring point back on screen.
|
|
|
8256 */ );
|
|
|
8257 scroll_conservatively = 0;
|
|
0
|
8258
|
|
|
8259 DEFVAR_BOOL_MAGIC ("truncate-partial-width-windows",
|
|
|
8260 &truncate_partial_width_windows /*
|
|
|
8261 *Non-nil means truncate lines in all windows less than full frame wide.
|
|
|
8262 */ ,
|
|
|
8263 redisplay_variable_changed);
|
|
|
8264 truncate_partial_width_windows = 1;
|
|
|
8265
|
|
|
8266 DEFVAR_BOOL ("visible-bell", &visible_bell /*
|
|
|
8267 *Non-nil means try to flash the frame to represent a bell.
|
|
|
8268 */ );
|
|
|
8269 visible_bell = 0;
|
|
|
8270
|
|
|
8271 DEFVAR_BOOL ("no-redraw-on-reenter", &no_redraw_on_reenter /*
|
|
|
8272 *Non-nil means no need to redraw entire frame after suspending.
|
|
|
8273 A non-nil value is useful if the terminal can automatically preserve
|
|
|
8274 Emacs's frame display when you reenter Emacs.
|
|
|
8275 It is up to you to set this variable if your terminal can do that.
|
|
|
8276 */ );
|
|
|
8277 no_redraw_on_reenter = 0;
|
|
|
8278
|
|
|
8279 DEFVAR_LISP ("window-system", &Vwindow_system /*
|
|
|
8280 A symbol naming the window-system under which Emacs is running,
|
|
|
8281 such as `x', or nil if emacs is running on an ordinary terminal.
|
|
187
|
8282
|
|
|
8283 Do not use this variable, except for GNU Emacs compatibility, as it
|
|
|
8284 gives wrong values in a multi-device environment. Use `console-type'
|
|
|
8285 instead.
|
|
0
|
8286 */ );
|
|
|
8287 Vwindow_system = Qnil;
|
|
|
8288
|
|
|
8289 /* #### Temporary shit until window-system is eliminated. */
|
|
|
8290 DEFVAR_LISP ("initial-window-system", &Vinitial_window_system /*
|
|
|
8291 DON'T TOUCH
|
|
|
8292 */ );
|
|
|
8293 Vinitial_window_system = Qnil;
|
|
|
8294
|
|
|
8295 DEFVAR_BOOL ("cursor-in-echo-area", &cursor_in_echo_area /*
|
|
|
8296 Non-nil means put cursor in minibuffer, at end of any message there.
|
|
|
8297 */ );
|
|
|
8298 cursor_in_echo_area = 0;
|
|
|
8299
|
|
|
8300 /* #### Shouldn't this be generalized as follows:
|
|
|
8301
|
|
|
8302 if nil, use block cursor.
|
|
|
8303 if a number, use a bar cursor of that width.
|
|
|
8304 Otherwise, use a 1-pixel bar cursor.
|
|
|
8305
|
|
|
8306 #### Or better yet, this variable should be trashed entirely
|
|
|
8307 (use a Lisp-magic variable to maintain compatibility)
|
|
|
8308 and a specifier `cursor-shape' added, which allows a block
|
|
|
8309 cursor, a bar cursor, a flashing block or bar cursor,
|
|
|
8310 maybe a caret cursor, etc. */
|
|
|
8311
|
|
|
8312 DEFVAR_LISP ("bar-cursor", &Vbar_cursor /*
|
|
|
8313 Use vertical bar cursor if non-nil. If t width is 1 pixel, otherwise 2.
|
|
|
8314 */ );
|
|
|
8315 Vbar_cursor = Qnil;
|
|
|
8316
|
|
|
8317 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
8318 xxDEFVAR_LISP ("pre-redisplay-hook", &Vpre_redisplay_hook /*
|
|
|
8319 Function or functions to run before every redisplay.
|
|
|
8320 Functions on this hook must be careful to avoid signalling errors!
|
|
|
8321 */ );
|
|
|
8322 Vpre_redisplay_hook = Qnil;
|
|
|
8323
|
|
|
8324 xxDEFVAR_LISP ("post-redisplay-hook", &Vpost_redisplay_hook /*
|
|
|
8325 Function or functions to run after every redisplay.
|
|
|
8326 Functions on this hook must be careful to avoid signalling errors!
|
|
|
8327 */ );
|
|
|
8328 Vpost_redisplay_hook = Qnil;
|
|
183
|
8329 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
0
|
8330
|
|
|
8331 DEFVAR_INT ("display-warning-tick", &display_warning_tick /*
|
|
|
8332 Bump this to tell the C code to call `display-warning-buffer'
|
|
|
8333 at next redisplay. You should not normally change this; the function
|
|
|
8334 `display-warning' automatically does this at appropriate times.
|
|
|
8335 */ );
|
|
|
8336 display_warning_tick = 0;
|
|
|
8337
|
|
|
8338 DEFVAR_BOOL ("inhibit-warning-display", &inhibit_warning_display /*
|
|
|
8339 Non-nil means inhibit display of warning messages.
|
|
|
8340 You should *bind* this, not set it. Any pending warning messages
|
|
|
8341 will be displayed when the binding no longer applies.
|
|
|
8342 */ );
|
|
|
8343 /* reset to 0 by startup.el after the splash screen has displayed.
|
|
|
8344 This way, the warnings don't obliterate the splash screen. */
|
|
|
8345 inhibit_warning_display = 1;
|
|
|
8346
|
|
|
8347 DEFVAR_LISP ("window-size-change-functions",
|
|
|
8348 &Vwindow_size_change_functions /*
|
|
|
8349 Not currently implemented.
|
|
|
8350 Functions called before redisplay, if window sizes have changed.
|
|
|
8351 The value should be a list of functions that take one argument.
|
|
|
8352 Just before redisplay, for each frame, if any of its windows have changed
|
|
|
8353 size since the last redisplay, or have been split or deleted,
|
|
|
8354 all the functions in the list are called, with the frame as argument.
|
|
|
8355 */ );
|
|
|
8356 Vwindow_size_change_functions = Qnil;
|
|
|
8357
|
|
|
8358 DEFVAR_LISP ("window-scroll-functions", &Vwindow_scroll_functions /*
|
|
|
8359 Not currently implemented.
|
|
|
8360 Functions to call before redisplaying a window with scrolling.
|
|
|
8361 Each function is called with two arguments, the window
|
|
|
8362 and its new display-start position. Note that the value of `window-end'
|
|
|
8363 is not valid when these functions are called.
|
|
|
8364 */ );
|
|
|
8365 Vwindow_scroll_functions = Qnil;
|
|
|
8366
|
|
|
8367 DEFVAR_LISP ("redisplay-end-trigger-functions",
|
|
|
8368 &Vredisplay_end_trigger_functions /*
|
|
|
8369 See `set-window-redisplay-end-trigger'.
|
|
|
8370 */ );
|
|
|
8371 Vredisplay_end_trigger_functions = Qnil;
|
|
72
|
8372
|
|
|
8373 DEFVAR_BOOL ("column-number-start-at-one", &column_number_start_at_one /*
|
|
142
|
8374 *Non-nil means column display number starts at 1.
|
|
72
|
8375 */ );
|
|
|
8376 column_number_start_at_one = 1;
|
|
0
|
8377 }
|
|
|
8378
|
|
|
8379 void
|
|
|
8380 specifier_vars_of_redisplay (void)
|
|
|
8381 {
|
|
|
8382 DEFVAR_SPECIFIER ("left-margin-width", &Vleft_margin_width /*
|
|
|
8383 *Width of left margin.
|
|
|
8384 This is a specifier; use `set-specifier' to change it.
|
|
|
8385 */ );
|
|
|
8386 Vleft_margin_width = Fmake_specifier (Qnatnum);
|
|
183
|
8387 set_specifier_fallback (Vleft_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8388 set_specifier_caching (Vleft_margin_width,
|
|
|
8389 slot_offset (struct window, left_margin_width),
|
|
|
8390 some_window_value_changed,
|
|
|
8391 slot_offset (struct frame, left_margin_width),
|
|
|
8392 margin_width_changed_in_frame);
|
|
|
8393
|
|
|
8394 DEFVAR_SPECIFIER ("right-margin-width", &Vright_margin_width /*
|
|
|
8395 *Width of right margin.
|
|
|
8396 This is a specifier; use `set-specifier' to change it.
|
|
|
8397 */ );
|
|
|
8398 Vright_margin_width = Fmake_specifier (Qnatnum);
|
|
183
|
8399 set_specifier_fallback (Vright_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8400 set_specifier_caching (Vright_margin_width,
|
|
|
8401 slot_offset (struct window, right_margin_width),
|
|
|
8402 some_window_value_changed,
|
|
|
8403 slot_offset (struct frame, right_margin_width),
|
|
|
8404 margin_width_changed_in_frame);
|
|
|
8405
|
|
|
8406 DEFVAR_SPECIFIER ("minimum-line-ascent", &Vminimum_line_ascent /*
|
|
|
8407 *Minimum ascent height of lines.
|
|
|
8408 This is a specifier; use `set-specifier' to change it.
|
|
|
8409 */ );
|
|
|
8410 Vminimum_line_ascent = Fmake_specifier (Qnatnum);
|
|
183
|
8411 set_specifier_fallback (Vminimum_line_ascent, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8412 set_specifier_caching (Vminimum_line_ascent,
|
|
183
|
8413 slot_offset (struct window, minimum_line_ascent),
|
|
0
|
8414 some_window_value_changed,
|
|
|
8415 0, 0);
|
|
|
8416
|
|
|
8417 DEFVAR_SPECIFIER ("minimum-line-descent", &Vminimum_line_descent /*
|
|
|
8418 *Minimum descent height of lines.
|
|
|
8419 This is a specifier; use `set-specifier' to change it.
|
|
|
8420 */ );
|
|
|
8421 Vminimum_line_descent = Fmake_specifier (Qnatnum);
|
|
183
|
8422 set_specifier_fallback (Vminimum_line_descent, list1 (Fcons (Qnil, Qzero)));
|
|
0
|
8423 set_specifier_caching (Vminimum_line_descent,
|
|
183
|
8424 slot_offset (struct window, minimum_line_descent),
|
|
0
|
8425 some_window_value_changed,
|
|
|
8426 0, 0);
|
|
|
8427
|
|
|
8428 DEFVAR_SPECIFIER ("use-left-overflow", &Vuse_left_overflow /*
|
|
|
8429 *Non-nil means use the left outside margin as extra whitespace when
|
|
|
8430 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
8431 This is a specifier; use `set-specifier' to change it.
|
|
|
8432 */ );
|
|
|
8433 Vuse_left_overflow = Fmake_specifier (Qboolean);
|
|
183
|
8434 set_specifier_fallback (Vuse_left_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
0
|
8435 set_specifier_caching (Vuse_left_overflow,
|
|
183
|
8436 slot_offset (struct window, use_left_overflow),
|
|
0
|
8437 some_window_value_changed,
|
|
|
8438 0, 0);
|
|
|
8439
|
|
|
8440 DEFVAR_SPECIFIER ("use-right-overflow", &Vuse_right_overflow /*
|
|
|
8441 *Non-nil means use the right outside margin as extra whitespace when
|
|
|
8442 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
8443 This is a specifier; use `set-specifier' to change it.
|
|
|
8444 */ );
|
|
|
8445 Vuse_right_overflow = Fmake_specifier (Qboolean);
|
|
183
|
8446 set_specifier_fallback (Vuse_right_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
0
|
8447 set_specifier_caching (Vuse_right_overflow,
|
|
183
|
8448 slot_offset (struct window, use_right_overflow),
|
|
0
|
8449 some_window_value_changed,
|
|
|
8450 0, 0);
|
|
|
8451
|
|
|
8452 DEFVAR_SPECIFIER ("text-cursor-visible-p", &Vtext_cursor_visible_p /*
|
|
|
8453 *Non-nil means the text cursor is visible (this is usually the case).
|
|
|
8454 This is a specifier; use `set-specifier' to change it.
|
|
|
8455 */ );
|
|
|
8456 Vtext_cursor_visible_p = Fmake_specifier (Qboolean);
|
|
183
|
8457 set_specifier_fallback (Vtext_cursor_visible_p, list1 (Fcons (Qnil, Qt)));
|
|
0
|
8458 set_specifier_caching (Vtext_cursor_visible_p,
|
|
183
|
8459 slot_offset (struct window, text_cursor_visible_p),
|
|
0
|
8460 text_cursor_visible_p_changed,
|
|
|
8461 0, 0);
|
|
72
|
8462
|
|
0
|
8463 }
|
