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428
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1 /* Display generation from window structure and buffer text.
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2 Copyright (C) 1994, 1995, 1996 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995 Free Software Foundation, Inc.
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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 #include <limits.h>
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44
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45 #include "buffer.h"
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46 #include "commands.h"
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47 #include "debug.h"
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48 #include "device.h"
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49 #include "elhash.h"
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50 #include "extents.h"
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51 #include "faces.h"
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52 #include "frame.h"
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53 #include "glyphs.h"
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54 #include "gutter.h"
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55 #include "insdel.h"
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56 #include "menubar.h"
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57 #include "objects.h"
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58 #include "process.h"
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59 #include "redisplay.h"
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60 #include "toolbar.h"
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61 #include "window.h"
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62 #include "line-number.h"
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63 #ifdef FILE_CODING
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64 #include "file-coding.h"
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65 #endif
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66
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67 #ifdef HAVE_TTY
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68 #include "console-tty.h"
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69 #ifdef HAVE_UNISTD_H
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70 #include <unistd.h> /* for isatty() */
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71 #endif
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72 #endif /* HAVE_TTY */
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73
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74 /* Note: We have to be careful throughout this code to properly handle
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75 and differentiate between Bufbytes and Emchars.
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76
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77 Since strings are generally composed of Bufbytes, I've taken the tack
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78 that any contiguous set of Bufbytes is called a "string", while
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79 any contiguous set of Emchars is called an "array". */
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80
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81 /* Return value to indicate a failure by an add_*_rune routine to add
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82 a rune, but no propagation information needs to be returned. */
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83 #define ADD_FAILED (prop_block_dynarr *) 1
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84
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85 #define BEGIN_GLYPHS 0
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86 #define END_GLYPHS 1
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87 #define LEFT_GLYPHS 2
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88 #define RIGHT_GLYPHS 3
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89
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90 /* Set the vertical clip to 0 if we are currently updating the line
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91 start cache. Otherwise for buffers of line height 1 it may fail to
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92 be able to work properly because regenerate_window will not layout
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93 a single line. */
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94 #define VERTICAL_CLIP(w, display) \
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95 (updating_line_start_cache \
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96 ? 0 \
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97 : ((WINDOW_TTY_P (w) | (!display && scroll_on_clipped_lines)) \
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98 ? INT_MAX \
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99 : vertical_clip))
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100
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101 /* The following structures are completely private to redisplay.c so
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102 we put them here instead of in a header file, for modularity. */
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103
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104 /* NOTE: Bytinds not Bufpos's in this structure. */
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105
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106 typedef struct position_redisplay_data_type
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107 {
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108 /* This information is normally filled in by the create_*_block
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109 routines and is used by the add_*_rune routines. */
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110 Lisp_Object window;
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111 /* if we are working with strings rather than buffers we need a
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112 handle to the string */
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113 Lisp_Object string;
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114 struct device *d;
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115 struct display_block *db;
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116 struct display_line *dl;
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117 Emchar ch; /* Character that is to be added. This is
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118 used to communicate this information to
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119 add_emchar_rune(). */
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120 Lisp_Object last_charset; /* The charset of the previous character.
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121 Used to optimize some lookups -- we
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122 only have to do some things when
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123 the charset changes. */
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124 face_index last_findex; /* The face index of the previous character.
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125 Needed to ensure the validity of the
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126 last_charset optimization. */
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127
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128 int last_char_width; /* The width of the previous character. */
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129 int font_is_bogus; /* If true, it means we couldn't instantiate
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130 the font for this charset, so we substitute
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131 ~'s from the ASCII charset. */
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132 Bytind bi_bufpos;
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133 Bytind bi_endpos;
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134 int pixpos;
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135 int max_pixpos;
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136 int blank_width; /* Width of the blank that is to be added.
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137 This is used to communicate this information
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138 to add_blank_rune().
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139
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140 This is also used rather cheesily to
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141 communicate the width of the eol-cursor-size
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142 blank that exists at the end of the line.
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143 add_emchar_rune() is called cheesily with
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144 the non-printing char '\n', which is stuck
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145 in the output routines with its width being
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146 BLANK_WIDTH. */
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147 Bytind bi_cursor_bufpos;/* This stores the buffer position of the cursor. */
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148 unsigned int cursor_type :3;
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149 int cursor_x; /* rune block cursor is at */
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150 int start_col; /* Number of character columns (each column has
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151 a width of the default char width) that still
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152 need to be skipped. This is used for horizontal
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153 scrolling, where a certain number of columns
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154 (those off the left side of the screen) need
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155 to be skipped before anything is displayed. */
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156 Bytind bi_start_col_enabled;
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157 int start_col_xoffset; /* Number of pixels that still need to
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158 be skipped. This is used for
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434
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159 horizontal scrolling of glyphs, where we want
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428
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160 to be able to scroll over part of the glyph. */
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161
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162 int hscroll_glyph_width_adjust; /* how much the width of the hscroll
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163 glyph differs from space_width (w).
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164 0 if no hscroll glyph was used,
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165 i.e. the window is not scrolled
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166 horizontally. Used in tab
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167 calculations. */
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168
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169 /* Information about the face the text should be displayed in and
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170 any begin-glyphs and end-glyphs. */
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171 struct extent_fragment *ef;
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172 face_index findex;
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173
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174 /* The height of a pixmap may either be predetermined if the user
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175 has set a baseline value, or it may be dependent on whatever the
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176 line ascent and descent values end up being, based just on font
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177 information. In the first case we can immediately update the
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178 values, thus their inclusion here. In the last case we cannot
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179 determine the actual contribution to the line height until we
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180 have finished laying out all text on the line. Thus we propagate
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181 the max height of such pixmaps and do a final calculation after
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182 all text has been added to the line. */
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183 int new_ascent;
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184 int new_descent;
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185 int max_pixmap_height;
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186
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187 Lisp_Object result_str; /* String where we put the result of
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188 generating a formatted string in the modeline. */
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189 int is_modeline; /* Non-zero if we're generating the modeline. */
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190 Charcount modeline_charpos; /* Number of chars used in result_str so far;
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191 corresponds to bytepos. */
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192 Bytecount bytepos; /* Number of bytes used in result_str so far.
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193 We don't actually copy the bytes into result_str
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194 until the end because we don't know how big the
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195 string is going to be until then. */
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196 } pos_data;
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197
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198 enum prop_type
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199 {
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200 PROP_STRING,
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201 PROP_CHAR,
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202 PROP_MINIBUF_PROMPT,
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203 PROP_BLANK
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204 };
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205
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206 /* Data that should be propagated to the next line. Either a single
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207 Emchar or a string of Bufbyte's.
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208
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209 The actual data that is propagated ends up as a Dynarr of these
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210 blocks.
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211
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212 #### It's unclean that both Emchars and Bufbytes are here.
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213 */
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214
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215 typedef struct prop_block prop_block;
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216 struct prop_block
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217 {
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218 enum prop_type type;
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219
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220 union data
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221 {
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222 struct
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223 {
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224 Bufbyte *str;
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225 Bytecount len; /* length of the string. */
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226 } p_string;
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227
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228 struct
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229 {
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230 Emchar ch;
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231 Bytind bi_cursor_bufpos; /* NOTE: is in Bytinds */
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232 unsigned int cursor_type :3;
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233 } p_char;
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234
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235 struct
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236 {
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237 int width;
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238 face_index findex;
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239 } p_blank;
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240 } data;
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241 };
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242
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243 typedef struct
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244 {
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245 Dynarr_declare (prop_block);
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246 } prop_block_dynarr;
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247
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248
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249 static Charcount generate_fstring_runes (struct window *w, pos_data *data,
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250 Charcount pos, Charcount min_pos,
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251 Charcount max_pos, Lisp_Object elt,
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252 int depth, int max_pixsize,
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438
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253 face_index findex, int type,
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254 Charcount *offset,
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255 Lisp_Object cur_ext);
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428
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256 static prop_block_dynarr *add_glyph_rune (pos_data *data,
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257 struct glyph_block *gb,
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258 int pos_type, int allow_cursor,
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259 struct glyph_cachel *cachel);
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260 static Bytind create_text_block (struct window *w, struct display_line *dl,
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261 Bytind bi_start_pos, prop_block_dynarr **prop,
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262 int type);
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263 static int create_overlay_glyph_block (struct window *w,
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264 struct display_line *dl);
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265 static void create_left_glyph_block (struct window *w,
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266 struct display_line *dl,
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267 int overlay_width);
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268 static void create_right_glyph_block (struct window *w,
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269 struct display_line *dl);
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270 static void redisplay_windows (Lisp_Object window, int skip_selected);
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271 static void decode_mode_spec (struct window *w, Emchar spec, int type);
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272 static void free_display_line (struct display_line *dl);
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273 static void update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
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274 Bufpos point, int no_regen);
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275 static int point_visible (struct window *w, Bufpos point, int type);
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276
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277 /* This used to be 10 but 30 seems to give much better performance. */
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278 #define INIT_MAX_PREEMPTS 30
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279 static int max_preempts;
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280
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281 #define REDISPLAY_PREEMPTION_CHECK \
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282 ((void) \
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283 (preempted = \
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284 (!disable_preemption && \
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285 ((preemption_count < max_preempts) || !NILP (Vexecuting_macro)) && \
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286 (!INTERACTIVE || detect_input_pending ()))))
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287
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288 /*
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289 * Redisplay global variables.
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290 */
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291
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292 /* We need a third set of display structures for the cursor motion
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293 routines. We used to just give each window a third set. However,
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294 we always fully regenerate the structures when needed so there
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295 isn't any reason we need more than a single set. */
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296 display_line_dynarr *cmotion_display_lines;
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297
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298 /* We store the extents that we need to generate in a Dynarr and then
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299 frob them all on at the end of generating the string. We do it
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300 this way rather than adding them as we generate the string because
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301 we don't store the text into the resulting string until we're done
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302 (to avoid having to resize the string multiple times), and we don't
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303 want to go around adding extents to a string when the extents might
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304 stretch off the end of the string. */
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305 static EXTENT_dynarr *formatted_string_extent_dynarr;
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306 static Bytecount_dynarr *formatted_string_extent_start_dynarr;
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307 static Bytecount_dynarr *formatted_string_extent_end_dynarr;
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308
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309
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310 /* #### probably temporary */
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311 int cache_adjustment;
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312
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313 /* This holds a string representing the text corresponding to a single
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314 modeline % spec. */
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315 static Bufbyte_dynarr *mode_spec_bufbyte_string;
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316
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317 int in_display; /* 1 if in redisplay. */
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318
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319 int disable_preemption; /* Used for debugging redisplay and for
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320 force-redisplay. */
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321
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322 /* We only allow max_preempts preemptions before we force a redisplay. */
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323 static int preemption_count;
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324
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325 /* Minimum pixel height of clipped bottom display line. */
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326 int vertical_clip;
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327
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328 /* Minimum visible pixel width of clipped glyphs at right margin. */
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329 int horizontal_clip;
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330
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331 /* Set if currently inside update_line_start_cache. */
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332 static int updating_line_start_cache;
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333
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334 /* Nonzero means reading single-character input with prompt
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335 so put cursor on minibuffer after the prompt. */
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336 int cursor_in_echo_area;
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337 Lisp_Object Qcursor_in_echo_area;
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338
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339 /* Nonzero means truncate lines in all windows less wide than the frame */
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340 int truncate_partial_width_windows;
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341
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342 /* non-nil if a buffer has changed since the last time redisplay completed */
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343 int buffers_changed;
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344 int buffers_changed_set;
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345
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346 /* non-nil if hscroll has changed somewhere or a buffer has been
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347 narrowed or widened */
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348 int clip_changed;
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349 int clip_changed_set;
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350
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351 /* non-nil if any extent has changed since the last time redisplay completed */
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352 int extents_changed;
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353 int extents_changed_set;
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354
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355 /* non-nil if any face has changed since the last time redisplay completed */
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356 int faces_changed;
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357
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358 /* Nonzero means some frames have been marked as garbaged */
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359 int frame_changed;
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360
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361 /* non-zero if any of the builtin display glyphs (continuation,
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362 hscroll, control-arrow, etc) is in need of updating
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363 somewhere. */
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364 int glyphs_changed;
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365 int glyphs_changed_set;
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366
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367 /* non-zero if any displayed subwindow is in need of updating
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368 somewhere. */
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369 int subwindows_changed;
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370 int subwindows_changed_set;
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371
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372 /* non-zero if any displayed subwindow is in need of updating
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373 somewhere. */
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374 int subwindows_state_changed;
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375 int subwindows_state_changed_set;
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376
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377 /* This variable is 1 if the icon has to be updated.
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378 It is set to 1 when `frame-icon-glyph' changes. */
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379 int icon_changed;
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380 int icon_changed_set;
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381
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382 /* This variable is 1 if the menubar widget has to be updated.
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383 It is set to 1 by set-menubar-dirty-flag and cleared when the widget
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384 has been updated. */
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385 int menubar_changed;
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386 int menubar_changed_set;
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387
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388 /* true iff we should redraw the modelines on the next redisplay */
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389 int modeline_changed;
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390 int modeline_changed_set;
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391
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392 /* non-nil if point has changed in some buffer since the last time
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393 redisplay completed */
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394 int point_changed;
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395 int point_changed_set;
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396
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397 /* non-nil if some frame has changed its size */
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398 int size_changed;
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399
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400 /* non-nil if some device has signaled that it wants to change size */
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401 int asynch_device_change_pending;
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402
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403 /* non-nil if any toolbar has changed */
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404 int toolbar_changed;
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|
405 int toolbar_changed_set;
|
|
|
406
|
|
|
407 /* non-nil if any gutter has changed */
|
|
|
408 int gutter_changed;
|
|
|
409 int gutter_changed_set;
|
|
|
410
|
|
|
411 /* non-nil if any window has changed since the last time redisplay completed */
|
|
|
412 int windows_changed;
|
|
|
413
|
|
|
414 /* non-nil if any frame's window structure has changed since the last
|
|
|
415 time redisplay completed */
|
|
|
416 int windows_structure_changed;
|
|
|
417
|
|
|
418 /* If non-nil, use vertical bar cursor. */
|
|
|
419 Lisp_Object Vbar_cursor;
|
|
|
420 Lisp_Object Qbar_cursor;
|
|
|
421
|
|
|
422 int visible_bell; /* If true and the terminal will support it
|
|
|
423 then the frame will flash instead of
|
|
|
424 beeping when an error occurs */
|
|
|
425
|
|
|
426 /* Nonzero means no need to redraw the entire frame on resuming
|
|
|
427 a suspended Emacs. This is useful on terminals with multiple pages,
|
|
|
428 where one page is used for Emacs and another for all else. */
|
|
|
429 int no_redraw_on_reenter;
|
|
|
430
|
|
|
431 Lisp_Object Vwindow_system; /* nil or a symbol naming the window system
|
|
|
432 under which emacs is running
|
|
|
433 ('x is the only current possibility) */
|
|
|
434 Lisp_Object Vinitial_window_system;
|
|
|
435
|
|
|
436 Lisp_Object Vglobal_mode_string;
|
|
|
437
|
|
|
438 /* The number of lines scroll a window by when point leaves the window; if
|
|
|
439 it is <=0 then point is centered in the window */
|
|
|
440 int scroll_step;
|
|
|
441
|
|
|
442 /* Scroll up to this many lines, to bring point back on screen. */
|
|
|
443 int scroll_conservatively;
|
|
|
444
|
|
|
445 /* Marker for where to display an arrow on top of the buffer text. */
|
|
|
446 Lisp_Object Voverlay_arrow_position;
|
|
|
447 /* String to display for the arrow. */
|
|
|
448 Lisp_Object Voverlay_arrow_string;
|
|
|
449
|
|
|
450 Lisp_Object Vwindow_size_change_functions;
|
|
|
451 Lisp_Object Vwindow_scroll_functions;
|
|
|
452 Lisp_Object Qredisplay_end_trigger_functions, Vredisplay_end_trigger_functions;
|
|
|
453
|
|
|
454 #define INHIBIT_REDISPLAY_HOOKS /* #### Until we've thought about
|
|
|
455 this more. */
|
|
|
456 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
457 /* #### Chuck says: I think this needs more thought.
|
|
|
458 Think about this for 19.14. */
|
|
|
459 Lisp_Object Vpre_redisplay_hook, Vpost_redisplay_hook;
|
|
|
460 Lisp_Object Qpre_redisplay_hook, Qpost_redisplay_hook;
|
|
|
461 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
|
462
|
|
|
463 static int last_display_warning_tick, display_warning_tick;
|
|
|
464 Lisp_Object Qdisplay_warning_buffer;
|
|
|
465 int inhibit_warning_display;
|
|
|
466
|
|
|
467 Lisp_Object Vleft_margin_width, Vright_margin_width;
|
|
|
468 Lisp_Object Vminimum_line_ascent, Vminimum_line_descent;
|
|
|
469 Lisp_Object Vuse_left_overflow, Vuse_right_overflow;
|
|
|
470 Lisp_Object Vtext_cursor_visible_p;
|
|
|
471
|
|
|
472 int column_number_start_at_one;
|
|
|
473
|
|
|
474 #define WINDOW_SCROLLED(w) \
|
|
|
475 (w->hscroll > 0 || w->left_xoffset)
|
|
|
476
|
|
|
477
|
|
|
478 /***************************************************************************/
|
|
|
479 /* */
|
|
|
480 /* low-level interfaces onto device routines */
|
|
|
481 /* */
|
|
|
482 /***************************************************************************/
|
|
|
483
|
|
|
484 static int
|
|
|
485 redisplay_text_width_emchar_string (struct window *w, int findex,
|
|
|
486 Emchar *str, Charcount len)
|
|
|
487 {
|
|
|
488 unsigned char charsets[NUM_LEADING_BYTES];
|
|
|
489 Lisp_Object window;
|
|
|
490
|
|
|
491 find_charsets_in_emchar_string (charsets, str, len);
|
|
|
492 XSETWINDOW (window, w);
|
|
|
493 ensure_face_cachel_complete (WINDOW_FACE_CACHEL (w, findex), window,
|
|
|
494 charsets);
|
|
|
495 return DEVMETH (XDEVICE (FRAME_DEVICE (XFRAME (WINDOW_FRAME (w)))),
|
|
|
496 text_width, (XFRAME (WINDOW_FRAME (w)),
|
|
|
497 WINDOW_FACE_CACHEL (w, findex), str, len));
|
|
|
498 }
|
|
|
499
|
|
|
500 static Emchar_dynarr *rtw_emchar_dynarr;
|
|
|
501
|
|
|
502 int
|
|
|
503 redisplay_text_width_string (struct window *w, int findex,
|
|
|
504 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
505 Bytecount offset, Bytecount len)
|
|
|
506 {
|
|
|
507 if (!rtw_emchar_dynarr)
|
|
|
508 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
509 Dynarr_reset (rtw_emchar_dynarr);
|
|
|
510
|
|
|
511 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
512 if (STRINGP (reloc))
|
|
|
513 nonreloc = XSTRING_DATA (reloc);
|
|
|
514 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
515 return redisplay_text_width_emchar_string
|
|
|
516 (w, findex, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
|
517 Dynarr_length (rtw_emchar_dynarr));
|
|
|
518 }
|
|
|
519
|
|
|
520 int
|
|
|
521 redisplay_frame_text_width_string (struct frame *f, Lisp_Object face,
|
|
|
522 Bufbyte *nonreloc, Lisp_Object reloc,
|
|
|
523 Bytecount offset, Bytecount len)
|
|
|
524 {
|
|
|
525 unsigned char charsets[NUM_LEADING_BYTES];
|
|
|
526 Lisp_Object frame;
|
|
|
527 struct face_cachel cachel;
|
|
|
528
|
|
|
529 if (!rtw_emchar_dynarr)
|
|
|
530 rtw_emchar_dynarr = Dynarr_new (Emchar);
|
|
|
531 Dynarr_reset (rtw_emchar_dynarr);
|
|
|
532
|
|
|
533 fixup_internal_substring (nonreloc, reloc, offset, &len);
|
|
|
534 if (STRINGP (reloc))
|
|
|
535 nonreloc = XSTRING_DATA (reloc);
|
|
|
536 convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
|
|
|
537 find_charsets_in_bufbyte_string (charsets, nonreloc, len);
|
|
|
538 reset_face_cachel (&cachel);
|
|
|
539 cachel.face = face;
|
|
|
540 XSETFRAME (frame, f);
|
|
|
541 ensure_face_cachel_complete (&cachel, frame, charsets);
|
|
|
542 return DEVMETH (XDEVICE (FRAME_DEVICE (f)),
|
|
|
543 text_width, (f, &cachel, Dynarr_atp (rtw_emchar_dynarr, 0),
|
|
|
544 Dynarr_length (rtw_emchar_dynarr)));
|
|
|
545 }
|
|
|
546
|
|
|
547 /* Return the display block from DL of the given TYPE. A display line
|
|
|
548 can have only one display block of each possible type. If DL does
|
|
|
549 not have a block of type TYPE, one will be created and added to DL. */
|
|
|
550
|
|
|
551 struct display_block *
|
|
|
552 get_display_block_from_line (struct display_line *dl, enum display_type type)
|
|
|
553 {
|
|
|
554 int elt;
|
|
|
555 struct display_block db;
|
|
|
556
|
|
|
557 /* Check if this display line already has a block of the desired type and
|
|
|
558 if so, return it. */
|
|
|
559 if (dl->display_blocks)
|
|
|
560 {
|
|
|
561 for (elt = 0; elt < Dynarr_length (dl->display_blocks); elt++)
|
|
|
562 {
|
|
|
563 if (Dynarr_at (dl->display_blocks, elt).type == type)
|
|
|
564 return Dynarr_atp (dl->display_blocks, elt);
|
|
|
565 }
|
|
|
566
|
|
|
567 /* There isn't an active block of the desired type, but there
|
|
|
568 might still be allocated blocks we need to reuse. */
|
|
|
569 if (elt < Dynarr_largest (dl->display_blocks))
|
|
|
570 {
|
|
|
571 struct display_block *dbp = Dynarr_atp (dl->display_blocks, elt);
|
|
|
572
|
|
|
573 /* 'add' the block to the list */
|
|
|
574 Dynarr_increment (dl->display_blocks);
|
|
|
575
|
|
|
576 /* initialize and return */
|
|
|
577 dbp->type = type;
|
|
|
578 return dbp;
|
|
|
579 }
|
|
|
580 }
|
|
|
581 else
|
|
|
582 {
|
|
|
583 /* This line doesn't have any display blocks, so initialize the display
|
|
|
584 bock array. */
|
|
|
585 dl->display_blocks = Dynarr_new (display_block);
|
|
|
586 }
|
|
|
587
|
|
|
588 /* The line doesn't have a block of the desired type so go ahead and create
|
|
|
589 one and add it to the line. */
|
|
|
590 xzero (db);
|
|
|
591 db.type = type;
|
|
|
592 db.runes = Dynarr_new (rune);
|
|
|
593 Dynarr_add (dl->display_blocks, db);
|
|
|
594
|
|
|
595 /* Return the newly added display block. */
|
|
|
596 elt = Dynarr_length (dl->display_blocks) - 1;
|
|
|
597
|
|
|
598 return Dynarr_atp (dl->display_blocks, elt);
|
|
|
599 }
|
|
|
600
|
|
|
601 static int
|
|
|
602 tab_char_width (struct window *w)
|
|
|
603 {
|
|
|
604 struct buffer *b = XBUFFER (w->buffer);
|
|
|
605 int char_tab_width = XINT (b->tab_width);
|
|
|
606
|
|
|
607 if (char_tab_width <= 0 || char_tab_width > 1000) char_tab_width = 8;
|
|
|
608
|
|
|
609 return char_tab_width;
|
|
|
610 }
|
|
|
611
|
|
|
612 static int
|
|
|
613 space_width (struct window *w)
|
|
|
614 {
|
|
|
615 /* While tabs are traditional composed of spaces, for variable-width
|
|
|
616 fonts the space character tends to give too narrow a value. So
|
|
|
617 we use 'n' instead. Except that we don't. We use the default
|
|
|
618 character width for the default face. If this is actually
|
|
|
619 defined by the font then it is probably the best thing to
|
|
|
620 actually use. If it isn't, we have assumed it is 'n' and have
|
|
|
621 already calculated its width. Thus we can avoid a call to
|
|
|
622 XTextWidth on X frames by just querying the default width. */
|
|
|
623 return XFONT_INSTANCE
|
|
|
624 (WINDOW_FACE_CACHEL_FONT (w, DEFAULT_INDEX, Vcharset_ascii))->width;
|
|
|
625 }
|
|
|
626
|
|
|
627 static int
|
|
|
628 tab_pix_width (struct window *w)
|
|
|
629 {
|
|
|
630 return space_width (w) * tab_char_width (w);
|
|
|
631 }
|
|
|
632
|
|
|
633 /* Given a pixel position in a window, return the pixel location of
|
|
|
634 the next tabstop. Tabs are calculated from the left window edge in
|
|
|
635 terms of spaces displayed in the default face. Formerly the space
|
|
|
636 width was determined using the currently active face. That method
|
|
|
637 leads to tabstops which do not line up. */
|
|
|
638
|
|
|
639 static int
|
|
|
640 next_tab_position (struct window *w, int start_pixpos, int left_pixpos)
|
|
|
641 {
|
|
|
642 int n_pos = left_pixpos;
|
|
|
643 int pix_tab_width = tab_pix_width (w);
|
|
|
644
|
|
|
645 /* Adjust n_pos for any hscrolling which has happened. */
|
|
|
646 if (WINDOW_SCROLLED (w))
|
|
|
647 n_pos -= space_width (w) * (w->hscroll - 1) + w->left_xoffset;
|
|
|
648
|
|
|
649 while (n_pos <= start_pixpos)
|
|
|
650 n_pos += pix_tab_width;
|
|
|
651
|
|
|
652 return n_pos;
|
|
|
653 }
|
|
|
654
|
|
|
655 /* For the given window, calculate the outside and margin boundaries for a
|
|
|
656 display line. The whitespace boundaries must be calculated by the text
|
|
|
657 layout routines. */
|
|
|
658
|
|
|
659 layout_bounds
|
|
|
660 calculate_display_line_boundaries (struct window *w, int modeline)
|
|
|
661 {
|
|
|
662 layout_bounds bounds;
|
|
|
663
|
|
|
664 /* Set the outermost boundaries which are the boundaries of the
|
|
|
665 window itself minus the gutters (and minus the scrollbars if this
|
|
|
666 is for the modeline). */
|
|
|
667 if (!modeline)
|
|
|
668 {
|
|
|
669 bounds.left_out = WINDOW_TEXT_LEFT (w);
|
|
|
670 bounds.right_out = WINDOW_TEXT_RIGHT (w);
|
|
|
671 }
|
|
|
672 else
|
|
|
673 {
|
|
|
674 bounds.left_out = WINDOW_MODELINE_LEFT (w);
|
|
|
675 bounds.right_out = WINDOW_MODELINE_RIGHT (w);
|
|
|
676 }
|
|
|
677
|
|
|
678 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
679 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
680 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
681
|
|
|
682 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
683 depend on the contents of the line being displayed. */
|
|
|
684 bounds.left_white = bounds.left_in;
|
|
|
685 bounds.right_white = bounds.right_in;
|
|
|
686
|
|
|
687 return bounds;
|
|
|
688 }
|
|
|
689
|
|
|
690 /* Given a display line and a starting position, ensure that the
|
|
|
691 contents of the display line accurately represent the visual
|
|
|
692 representation of the buffer contents starting from the given
|
|
|
693 position when displayed in the given window. The display line ends
|
|
|
694 when the contents of the line reach the right boundary of the given
|
|
|
695 window. */
|
|
|
696
|
|
|
697 static Bufpos
|
|
|
698 generate_display_line (struct window *w, struct display_line *dl, int bounds,
|
|
|
699 Bufpos start_pos, prop_block_dynarr **prop,
|
|
|
700 int type)
|
|
|
701 {
|
|
|
702 Bufpos ret_bufpos;
|
|
|
703 int overlay_width;
|
|
|
704 struct buffer *b = XBUFFER (WINDOW_BUFFER (w));
|
|
|
705
|
|
|
706 /* If our caller hasn't already set the boundaries, then do so now. */
|
|
|
707 if (!bounds)
|
|
|
708 dl->bounds = calculate_display_line_boundaries (w, 0);
|
|
|
709
|
|
|
710 /* Reset what this line is using. */
|
|
|
711 if (dl->display_blocks)
|
|
|
712 Dynarr_reset (dl->display_blocks);
|
|
|
713 if (dl->left_glyphs)
|
|
|
714 {
|
|
|
715 Dynarr_free (dl->left_glyphs);
|
|
|
716 dl->left_glyphs = 0;
|
|
|
717 }
|
|
|
718 if (dl->right_glyphs)
|
|
|
719 {
|
|
|
720 Dynarr_free (dl->right_glyphs);
|
|
|
721 dl->right_glyphs = 0;
|
|
|
722 }
|
|
|
723
|
|
|
724 /* We aren't generating a modeline at the moment. */
|
|
|
725 dl->modeline = 0;
|
|
|
726
|
|
|
727 /* Create a display block for the text region of the line. */
|
|
|
728 {
|
|
|
729 /* #### urk urk urk!!! Chuck fix this shit! */
|
|
|
730 Bytind hacked_up_bytind =
|
|
|
731 create_text_block (w, dl, bufpos_to_bytind (b, start_pos),
|
|
|
732 prop, type);
|
|
|
733 if (hacked_up_bytind > BI_BUF_ZV (b))
|
|
|
734 ret_bufpos = BUF_ZV (b) + 1;
|
|
|
735 else
|
|
|
736 ret_bufpos = bytind_to_bufpos (b, hacked_up_bytind);
|
|
|
737 }
|
|
|
738 dl->bufpos = start_pos;
|
|
|
739 if (dl->end_bufpos < dl->bufpos)
|
|
|
740 dl->end_bufpos = dl->bufpos;
|
|
|
741
|
|
|
742 if (MARKERP (Voverlay_arrow_position)
|
|
|
743 && EQ (w->buffer, Fmarker_buffer (Voverlay_arrow_position))
|
|
|
744 && start_pos == marker_position (Voverlay_arrow_position)
|
|
|
745 && (STRINGP (Voverlay_arrow_string)
|
|
|
746 || GLYPHP (Voverlay_arrow_string)))
|
|
|
747 {
|
|
|
748 overlay_width = create_overlay_glyph_block (w, dl);
|
|
|
749 }
|
|
|
750 else
|
|
|
751 overlay_width = 0;
|
|
|
752
|
|
|
753 /* If there are left glyphs associated with any character in the
|
|
|
754 text block, then create a display block to handle them. */
|
|
|
755 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
756 create_left_glyph_block (w, dl, overlay_width);
|
|
|
757
|
|
|
758 /* If there are right glyphs associated with any character in the
|
|
|
759 text block, then create a display block to handle them. */
|
|
|
760 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
761 create_right_glyph_block (w, dl);
|
|
|
762
|
|
|
763 /* In the future additional types of display blocks may be generated
|
|
|
764 here. */
|
|
|
765
|
|
|
766 w->last_redisplay_pos = ret_bufpos;
|
|
|
767
|
|
|
768 return ret_bufpos;
|
|
|
769 }
|
|
|
770
|
|
|
771 /* Adds an hscroll glyph to a display block. If this is called, then
|
|
|
772 the block had better be empty.
|
|
|
773
|
|
|
774 Yes, there are multiple places where this function is called but
|
|
|
775 that is the way it has to be. Each calling function has to deal
|
|
|
776 with bi_start_col_enabled a little differently depending on the
|
|
|
777 object being worked with. */
|
|
|
778
|
|
|
779 static prop_block_dynarr *
|
|
|
780 add_hscroll_rune (pos_data *data)
|
|
|
781 {
|
|
|
782 struct glyph_block gb;
|
|
|
783 prop_block_dynarr *retval;
|
|
|
784 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
785 unsigned int old_cursor_type = data->cursor_type;
|
|
|
786 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
787
|
|
|
788 if (data->cursor_type == CURSOR_ON
|
|
|
789 && data->bi_cursor_bufpos >= data->bi_start_col_enabled
|
|
|
790 && data->bi_cursor_bufpos <= data->bi_bufpos)
|
|
|
791 {
|
|
|
792 data->bi_cursor_bufpos = data->bi_start_col_enabled;
|
|
|
793 }
|
|
|
794 else
|
|
|
795 {
|
|
|
796 data->cursor_type = NO_CURSOR;
|
|
|
797 }
|
|
|
798
|
|
|
799 data->bi_endpos = data->bi_bufpos;
|
|
|
800 data->bi_bufpos = data->bi_start_col_enabled;
|
|
|
801
|
|
|
802 gb.extent = Qnil;
|
|
|
803 gb.glyph = Vhscroll_glyph;
|
|
|
804 {
|
|
|
805 int oldpixpos = data->pixpos;
|
|
|
806 retval = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
807 GLYPH_CACHEL (XWINDOW (data->window),
|
|
|
808 HSCROLL_GLYPH_INDEX));
|
|
|
809 data->hscroll_glyph_width_adjust =
|
|
|
810 data->pixpos - oldpixpos - space_width (XWINDOW (data->window));
|
|
|
811 }
|
|
|
812 data->bi_endpos = 0;
|
|
|
813 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
814 data->cursor_type = old_cursor_type;
|
|
|
815 data->bi_bufpos = bi_old_bufpos;
|
|
|
816
|
|
|
817 data->bi_start_col_enabled = 0;
|
|
|
818 return retval;
|
|
|
819 }
|
|
|
820
|
|
|
821 /* Adds a character rune to a display block. If there is not enough
|
|
|
822 room to fit the rune on the display block (as determined by the
|
|
|
823 MAX_PIXPOS) then it adds nothing and returns ADD_FAILED. */
|
|
|
824
|
|
|
825 static prop_block_dynarr *
|
|
|
826 add_emchar_rune (pos_data *data)
|
|
|
827 {
|
|
|
828 struct rune rb, *crb;
|
|
|
829 int width, local;
|
|
|
830
|
|
|
831 if (data->start_col)
|
|
|
832 {
|
|
|
833 data->start_col--;
|
|
|
834
|
|
|
835 if (data->start_col)
|
|
|
836 return NULL;
|
|
|
837 }
|
|
|
838
|
|
|
839 if (data->bi_start_col_enabled)
|
|
|
840 {
|
|
|
841 return add_hscroll_rune (data);
|
|
|
842 }
|
|
|
843
|
|
|
844 if (data->ch == '\n')
|
|
|
845 {
|
|
|
846 data->font_is_bogus = 0;
|
|
|
847 /* Cheesy end-of-line pseudo-character. */
|
|
|
848 width = data->blank_width;
|
|
|
849 }
|
|
|
850 else
|
|
|
851 {
|
|
|
852 Lisp_Object charset = CHAR_CHARSET (data->ch);
|
|
|
853 if (!EQ (charset, data->last_charset) ||
|
|
|
854 data->findex != data->last_findex)
|
|
|
855 {
|
|
|
856 /* OK, we need to do things the hard way. */
|
|
|
857 struct window *w = XWINDOW (data->window);
|
|
|
858 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, data->findex);
|
|
|
859 Lisp_Object font_instance =
|
|
|
860 ensure_face_cachel_contains_charset (cachel, data->window,
|
|
|
861 charset);
|
|
440
|
862 Lisp_Font_Instance *fi;
|
|
428
|
863
|
|
|
864 if (EQ (font_instance, Vthe_null_font_instance))
|
|
|
865 {
|
|
|
866 font_instance = FACE_CACHEL_FONT (cachel, Vcharset_ascii);
|
|
|
867 data->font_is_bogus = 1;
|
|
|
868 }
|
|
|
869 else
|
|
|
870 data->font_is_bogus = 0;
|
|
|
871
|
|
|
872 fi = XFONT_INSTANCE (font_instance);
|
|
|
873 if (!fi->proportional_p)
|
|
|
874 /* sweetness and light. */
|
|
|
875 data->last_char_width = fi->width;
|
|
|
876 else
|
|
|
877 data->last_char_width = -1;
|
|
|
878 data->new_ascent = max (data->new_ascent, (int) fi->ascent);
|
|
|
879 data->new_descent = max (data->new_descent, (int) fi->descent);
|
|
|
880 data->last_charset = charset;
|
|
|
881 data->last_findex = data->findex;
|
|
|
882 }
|
|
|
883
|
|
|
884 width = data->last_char_width;
|
|
|
885 if (width < 0)
|
|
|
886 {
|
|
|
887 /* bummer. Proportional fonts. */
|
|
|
888 width = redisplay_text_width_emchar_string (XWINDOW (data->window),
|
|
|
889 data->findex,
|
|
|
890 &data->ch, 1);
|
|
|
891 }
|
|
|
892 }
|
|
|
893
|
|
|
894 if (data->max_pixpos != -1 && (data->pixpos + width > data->max_pixpos))
|
|
|
895 {
|
|
|
896 return ADD_FAILED;
|
|
|
897 }
|
|
|
898
|
|
|
899 if (Dynarr_length (data->db->runes) < Dynarr_largest (data->db->runes))
|
|
|
900 {
|
|
|
901 crb = Dynarr_atp (data->db->runes, Dynarr_length (data->db->runes));
|
|
|
902 local = 0;
|
|
|
903 }
|
|
|
904 else
|
|
|
905 {
|
|
|
906 crb = &rb;
|
|
|
907 local = 1;
|
|
|
908 }
|
|
|
909
|
|
|
910 crb->findex = data->findex;
|
|
|
911 crb->xpos = data->pixpos;
|
|
|
912 crb->width = width;
|
|
|
913 if (data->bi_bufpos)
|
|
|
914 {
|
|
|
915 if (NILP (data->string))
|
|
|
916 crb->bufpos =
|
|
|
917 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
918 data->bi_bufpos);
|
|
|
919 else
|
|
|
920 crb->bufpos =
|
|
|
921 bytecount_to_charcount (XSTRING_DATA (data->string), data->bi_bufpos);
|
|
|
922 }
|
|
|
923 else if (data->is_modeline)
|
|
|
924 crb->bufpos = data->modeline_charpos;
|
|
|
925 else
|
|
|
926 /* fuckme if this shouldn't be an abort. */
|
|
|
927 /* abort (); fuckme harder, this abort gets tripped quite often,
|
|
|
928 in propagation and whatnot. #### fixme */
|
|
|
929 crb->bufpos = 0;
|
|
|
930 crb->type = RUNE_CHAR;
|
|
|
931 crb->object.chr.ch = data->font_is_bogus ? '~' : data->ch;
|
|
|
932 crb->endpos = 0;
|
|
|
933
|
|
|
934 if (data->cursor_type == CURSOR_ON)
|
|
|
935 {
|
|
|
936 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
937 {
|
|
|
938 crb->cursor_type = CURSOR_ON;
|
|
|
939 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
940 }
|
|
|
941 else
|
|
|
942 crb->cursor_type = CURSOR_OFF;
|
|
|
943 }
|
|
|
944 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
945 {
|
|
|
946 crb->cursor_type = CURSOR_ON;
|
|
|
947 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
948 data->cursor_type = NO_CURSOR;
|
|
|
949 }
|
|
|
950 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
951 crb->cursor_type = IGNORE_CURSOR;
|
|
|
952 else
|
|
|
953 crb->cursor_type = CURSOR_OFF;
|
|
|
954
|
|
|
955 if (local)
|
|
|
956 Dynarr_add (data->db->runes, *crb);
|
|
|
957 else
|
|
|
958 Dynarr_increment (data->db->runes);
|
|
|
959
|
|
|
960 data->pixpos += width;
|
|
|
961
|
|
|
962 return NULL;
|
|
|
963 }
|
|
|
964
|
|
|
965 /* Given a string C_STRING of length C_LENGTH, call add_emchar_rune
|
|
|
966 for each character in the string. Propagate any left-over data
|
|
|
967 unless NO_PROP is non-zero. */
|
|
|
968
|
|
|
969 static prop_block_dynarr *
|
|
|
970 add_bufbyte_string_runes (pos_data *data, Bufbyte *c_string,
|
|
|
971 Bytecount c_length, int no_prop)
|
|
|
972 {
|
|
|
973 Bufbyte *pos, *end = c_string + c_length;
|
|
|
974 prop_block_dynarr *prop;
|
|
|
975
|
|
|
976 /* #### This function is too simplistic. It needs to do the same
|
|
|
977 sort of character interpretation (display-table lookup,
|
|
|
978 ctl-arrow checking), etc. that create_text_block() does.
|
|
|
979 The functionality to do this in that routine needs to be
|
|
|
980 modularized. */
|
|
|
981
|
|
|
982 for (pos = c_string; pos < end;)
|
|
|
983 {
|
|
|
984 data->ch = charptr_emchar (pos);
|
|
|
985
|
|
|
986 prop = add_emchar_rune (data);
|
|
|
987
|
|
|
988 if (prop)
|
|
|
989 {
|
|
|
990 if (no_prop)
|
|
|
991 return ADD_FAILED;
|
|
|
992 else
|
|
|
993 {
|
|
|
994 struct prop_block pb;
|
|
|
995 Bytecount len = end - pos;
|
|
|
996 prop = Dynarr_new (prop_block);
|
|
|
997
|
|
|
998 pb.type = PROP_STRING;
|
|
|
999 pb.data.p_string.str = xnew_array (Bufbyte, len);
|
|
|
1000 strncpy ((char *) pb.data.p_string.str, (char *) pos, len);
|
|
|
1001 pb.data.p_string.len = len;
|
|
|
1002
|
|
|
1003 Dynarr_add (prop, pb);
|
|
|
1004 return prop;
|
|
|
1005 }
|
|
|
1006 }
|
|
|
1007 INC_CHARPTR (pos);
|
|
|
1008 assert (pos <= end);
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 return NULL;
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 /* Add a single rune of the specified width. The area covered by this
|
|
|
1015 rune will be displayed in the foreground color of the associated
|
|
|
1016 face. */
|
|
|
1017
|
|
|
1018 static prop_block_dynarr *
|
|
|
1019 add_blank_rune (pos_data *data, struct window *w, int char_tab_width)
|
|
|
1020 {
|
|
|
1021 struct rune rb;
|
|
|
1022
|
|
|
1023 /* If data->start_col is not 0 then this call to add_blank_rune must have
|
|
|
1024 been to add it as a tab. */
|
|
|
1025 if (data->start_col)
|
|
|
1026 {
|
|
|
1027 /* assert (w != NULL) */
|
|
|
1028 prop_block_dynarr *retval;
|
|
|
1029
|
|
|
1030 /* If we have still not fully scrolled horizontally, subtract
|
|
|
1031 the width of this tab and return. */
|
|
|
1032 if (char_tab_width < data->start_col)
|
|
|
1033 {
|
|
|
1034 data->start_col -= char_tab_width;
|
|
|
1035 return NULL;
|
|
|
1036 }
|
|
|
1037 else if (char_tab_width == data->start_col)
|
|
|
1038 data->blank_width = 0;
|
|
|
1039 else
|
|
|
1040 {
|
|
|
1041 int spcwid = space_width (w);
|
|
|
1042
|
|
|
1043 if (spcwid >= data->blank_width)
|
|
|
1044 data->blank_width = 0;
|
|
|
1045 else
|
|
|
1046 data->blank_width -= spcwid;
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 data->start_col = 0;
|
|
|
1050 retval = add_hscroll_rune (data);
|
|
|
1051
|
|
|
1052 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1053 if (retval != NULL || !data->blank_width)
|
|
|
1054 return retval;
|
|
|
1055 }
|
|
|
1056
|
|
|
1057 /* Blank runes are always calculated to fit. */
|
|
|
1058 assert (data->pixpos + data->blank_width <= data->max_pixpos);
|
|
|
1059
|
|
|
1060 rb.findex = data->findex;
|
|
|
1061 rb.xpos = data->pixpos;
|
|
|
1062 rb.width = data->blank_width;
|
|
|
1063 if (data->bi_bufpos)
|
|
|
1064 rb.bufpos =
|
|
|
1065 bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (XWINDOW (data->window))),
|
|
|
1066 data->bi_bufpos);
|
|
|
1067 else
|
|
|
1068 /* #### and this is really correct too? */
|
|
|
1069 rb.bufpos = 0;
|
|
|
1070 rb.endpos = 0;
|
|
|
1071 rb.type = RUNE_BLANK;
|
|
|
1072
|
|
|
1073 if (data->cursor_type == CURSOR_ON)
|
|
|
1074 {
|
|
|
1075 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1076 {
|
|
|
1077 rb.cursor_type = CURSOR_ON;
|
|
|
1078 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1079 }
|
|
|
1080 else
|
|
|
1081 rb.cursor_type = CURSOR_OFF;
|
|
|
1082 }
|
|
|
1083 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1084 {
|
|
|
1085 rb.cursor_type = CURSOR_ON;
|
|
|
1086 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1087 data->cursor_type = NO_CURSOR;
|
|
|
1088 }
|
|
|
1089 else
|
|
|
1090 rb.cursor_type = CURSOR_OFF;
|
|
|
1091
|
|
|
1092 Dynarr_add (data->db->runes, rb);
|
|
|
1093 data->pixpos += data->blank_width;
|
|
|
1094
|
|
|
1095 return NULL;
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 /* Add runes representing a character in octal. */
|
|
|
1099
|
|
|
1100 #define ADD_NEXT_OCTAL_RUNE_CHAR do \
|
|
|
1101 { \
|
|
|
1102 if (add_failed || (add_failed = add_emchar_rune (data))) \
|
|
|
1103 { \
|
|
|
1104 struct prop_block pb; \
|
|
|
1105 if (!prop) \
|
|
|
1106 prop = Dynarr_new (prop_block); \
|
|
|
1107 \
|
|
|
1108 pb.type = PROP_CHAR; \
|
|
|
1109 pb.data.p_char.ch = data->ch; \
|
|
|
1110 pb.data.p_char.cursor_type = data->cursor_type; \
|
|
|
1111 Dynarr_add (prop, pb); \
|
|
|
1112 } \
|
|
|
1113 } while (0)
|
|
|
1114
|
|
|
1115 static prop_block_dynarr *
|
|
|
1116 add_octal_runes (pos_data *data)
|
|
|
1117 {
|
|
|
1118 prop_block_dynarr *prop, *add_failed;
|
|
|
1119 Emchar orig_char = data->ch;
|
|
|
1120 unsigned int orig_cursor_type = data->cursor_type;
|
|
|
1121
|
|
|
1122 /* Initialize */
|
|
|
1123 prop = NULL;
|
|
|
1124 add_failed = NULL;
|
|
|
1125
|
|
|
1126 if (data->start_col)
|
|
|
1127 data->start_col--;
|
|
|
1128
|
|
|
1129 if (!data->start_col)
|
|
|
1130 {
|
|
|
1131 if (data->bi_start_col_enabled)
|
|
|
1132 {
|
|
|
1133 add_failed = add_hscroll_rune (data);
|
|
|
1134 }
|
|
|
1135 else
|
|
|
1136 {
|
|
|
1137 struct glyph_block gb;
|
|
|
1138 struct window *w = XWINDOW (data->window);
|
|
|
1139
|
|
|
1140 gb.extent = Qnil;
|
|
|
1141 gb.glyph = Voctal_escape_glyph;
|
|
|
1142 add_failed =
|
|
|
1143 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1144 GLYPH_CACHEL (w, OCT_ESC_GLYPH_INDEX));
|
|
|
1145 }
|
|
|
1146 }
|
|
|
1147
|
|
|
1148 /* We only propagate information if the glyph was partially
|
|
|
1149 added. */
|
|
|
1150 if (add_failed)
|
|
|
1151 return add_failed;
|
|
|
1152
|
|
|
1153 data->cursor_type = IGNORE_CURSOR;
|
|
|
1154
|
|
|
1155 if (data->ch >= 0x100)
|
|
|
1156 {
|
|
|
1157 /* If the character is an extended Mule character, it could have
|
|
|
1158 up to 19 bits. For the moment, we treat it as a seven-digit
|
|
|
1159 octal number. This is not that pretty, but whatever. */
|
|
|
1160 data->ch = (7 & (orig_char >> 18)) + '0';
|
|
|
1161 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1162
|
|
|
1163 data->ch = (7 & (orig_char >> 15)) + '0';
|
|
|
1164 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1165
|
|
|
1166 data->ch = (7 & (orig_char >> 12)) + '0';
|
|
|
1167 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1168
|
|
|
1169 data->ch = (7 & (orig_char >> 9)) + '0';
|
|
|
1170 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 data->ch = (7 & (orig_char >> 6)) + '0';
|
|
|
1174 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1175
|
|
|
1176 data->ch = (7 & (orig_char >> 3)) + '0';
|
|
|
1177 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1178
|
|
|
1179 data->ch = (7 & orig_char) + '0';
|
|
|
1180 ADD_NEXT_OCTAL_RUNE_CHAR;
|
|
|
1181
|
|
|
1182 data->cursor_type = orig_cursor_type;
|
|
|
1183 return prop;
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 #undef ADD_NEXT_OCTAL_RUNE_CHAR
|
|
|
1187
|
|
|
1188 /* Add runes representing a control character to a display block. */
|
|
|
1189
|
|
|
1190 static prop_block_dynarr *
|
|
|
1191 add_control_char_runes (pos_data *data, struct buffer *b)
|
|
|
1192 {
|
|
|
1193 if (!NILP (b->ctl_arrow))
|
|
|
1194 {
|
|
|
1195 prop_block_dynarr *prop;
|
|
|
1196 Emchar orig_char = data->ch;
|
|
|
1197 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1198
|
|
|
1199 /* Initialize */
|
|
|
1200 prop = NULL;
|
|
|
1201
|
|
|
1202 if (data->start_col)
|
|
|
1203 data->start_col--;
|
|
|
1204
|
|
|
1205 if (!data->start_col)
|
|
|
1206 {
|
|
|
1207 if (data->bi_start_col_enabled)
|
|
|
1208 {
|
|
|
1209 prop_block_dynarr *retval;
|
|
|
1210
|
|
|
1211 retval = add_hscroll_rune (data);
|
|
|
1212 if (retval)
|
|
|
1213 return retval;
|
|
|
1214 }
|
|
|
1215 else
|
|
|
1216 {
|
|
|
1217 struct glyph_block gb;
|
|
|
1218 struct window *w = XWINDOW (data->window);
|
|
|
1219
|
|
|
1220 gb.extent = Qnil;
|
|
|
1221 gb.glyph = Vcontrol_arrow_glyph;
|
|
|
1222
|
|
|
1223 /* We only propagate information if the glyph was partially
|
|
|
1224 added. */
|
|
|
1225 if (add_glyph_rune (data, &gb, BEGIN_GLYPHS, 1,
|
|
|
1226 GLYPH_CACHEL (w, CONTROL_GLYPH_INDEX)))
|
|
|
1227 return ADD_FAILED;
|
|
|
1228 }
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 if (orig_char == 0177)
|
|
|
1232 data->ch = '?';
|
|
|
1233 else
|
|
|
1234 data->ch = orig_char ^ 0100;
|
|
|
1235 data->cursor_type = IGNORE_CURSOR;
|
|
|
1236
|
|
|
1237 if (add_emchar_rune (data))
|
|
|
1238 {
|
|
|
1239 struct prop_block pb;
|
|
|
1240 if (!prop)
|
|
|
1241 prop = Dynarr_new (prop_block);
|
|
|
1242
|
|
|
1243 pb.type = PROP_CHAR;
|
|
|
1244 pb.data.p_char.ch = data->ch;
|
|
|
1245 pb.data.p_char.cursor_type = data->cursor_type;
|
|
|
1246 Dynarr_add (prop, pb);
|
|
|
1247 }
|
|
|
1248
|
|
|
1249 data->cursor_type = old_cursor_type;
|
|
|
1250 return prop;
|
|
|
1251 }
|
|
|
1252 else
|
|
|
1253 {
|
|
|
1254 return add_octal_runes (data);
|
|
|
1255 }
|
|
|
1256 }
|
|
|
1257
|
|
|
1258 static prop_block_dynarr *
|
|
|
1259 add_disp_table_entry_runes_1 (pos_data *data, Lisp_Object entry)
|
|
|
1260 {
|
|
|
1261 prop_block_dynarr *prop = NULL;
|
|
|
1262
|
|
|
1263 if (STRINGP (entry))
|
|
|
1264 {
|
|
|
1265 prop = add_bufbyte_string_runes (data,
|
|
|
1266 XSTRING_DATA (entry),
|
|
|
1267 XSTRING_LENGTH (entry),
|
|
|
1268 0);
|
|
|
1269 }
|
|
|
1270 else if (GLYPHP (entry))
|
|
|
1271 {
|
|
|
1272 if (data->start_col)
|
|
|
1273 data->start_col--;
|
|
|
1274
|
|
|
1275 if (!data->start_col && data->bi_start_col_enabled)
|
|
|
1276 {
|
|
|
1277 prop = add_hscroll_rune (data);
|
|
|
1278 }
|
|
|
1279 else
|
|
|
1280 {
|
|
|
1281 struct glyph_block gb;
|
|
|
1282
|
|
|
1283 gb.glyph = entry;
|
|
|
1284 gb.extent = Qnil;
|
|
|
1285 prop = add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
1286 }
|
|
|
1287 }
|
|
|
1288 else if (CHAR_OR_CHAR_INTP (entry))
|
|
|
1289 {
|
|
|
1290 data->ch = XCHAR_OR_CHAR_INT (entry);
|
|
|
1291 prop = add_emchar_rune (data);
|
|
|
1292 }
|
|
|
1293 else if (CONSP (entry))
|
|
|
1294 {
|
|
|
1295 if (EQ (XCAR (entry), Qformat)
|
|
|
1296 && CONSP (XCDR (entry))
|
|
|
1297 && STRINGP (XCAR (XCDR (entry))))
|
|
|
1298 {
|
|
|
1299 Lisp_Object format = XCAR (XCDR (entry));
|
|
|
1300 Bytind len = XSTRING_LENGTH (format);
|
|
|
1301 Bufbyte *src = XSTRING_DATA (format), *end = src + len;
|
|
|
1302 Bufbyte *result = alloca_array (Bufbyte, len);
|
|
|
1303 Bufbyte *dst = result;
|
|
|
1304
|
|
|
1305 while (src < end)
|
|
|
1306 {
|
|
|
1307 Emchar c = charptr_emchar (src);
|
|
|
1308 INC_CHARPTR (src);
|
|
|
1309 if (c != '%' || src == end)
|
|
|
1310 dst += set_charptr_emchar (dst, c);
|
|
|
1311 else
|
|
|
1312 {
|
|
|
1313 c = charptr_emchar (src);
|
|
|
1314 INC_CHARPTR (src);
|
|
|
1315 switch (c)
|
|
|
1316 {
|
|
|
1317 /*case 'x':
|
|
|
1318 dst += long_to_string_base ((char *)dst, data->ch, 16);
|
|
|
1319 break;*/
|
|
|
1320 case '%':
|
|
|
1321 dst += set_charptr_emchar (dst, '%');
|
|
|
1322 break;
|
|
|
1323 }
|
|
|
1324 }
|
|
|
1325 }
|
|
|
1326 prop = add_bufbyte_string_runes (data, result, dst - result, 0);
|
|
|
1327 }
|
|
|
1328 }
|
|
|
1329
|
|
|
1330 /* Else blow it off because someone added a bad entry and we don't
|
|
|
1331 have any safe way of signaling an error. */
|
|
|
1332 return prop;
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 /* Given a display table entry, call the appropriate functions to
|
|
|
1336 display each element of the entry. */
|
|
|
1337
|
|
|
1338 static prop_block_dynarr *
|
|
|
1339 add_disp_table_entry_runes (pos_data *data, Lisp_Object entry)
|
|
|
1340 {
|
|
|
1341 prop_block_dynarr *prop = NULL;
|
|
|
1342 if (VECTORP (entry))
|
|
|
1343 {
|
|
440
|
1344 Lisp_Vector *de = XVECTOR (entry);
|
|
428
|
1345 EMACS_INT len = vector_length (de);
|
|
|
1346 int elt;
|
|
|
1347
|
|
|
1348 for (elt = 0; elt < len; elt++)
|
|
|
1349 {
|
|
|
1350 if (NILP (vector_data (de)[elt]))
|
|
|
1351 continue;
|
|
|
1352 else
|
|
|
1353 prop = add_disp_table_entry_runes_1 (data, vector_data (de)[elt]);
|
|
|
1354 /* Else blow it off because someone added a bad entry and we
|
|
|
1355 don't have any safe way of signaling an error. Hey, this
|
|
|
1356 comment sounds familiar. */
|
|
|
1357
|
|
|
1358 /* #### Still need to add any remaining elements to the
|
|
|
1359 propagation information. */
|
|
|
1360 if (prop)
|
|
|
1361 return prop;
|
|
|
1362 }
|
|
|
1363 }
|
|
|
1364 else
|
|
|
1365 prop = add_disp_table_entry_runes_1 (data, entry);
|
|
|
1366 return prop;
|
|
|
1367 }
|
|
|
1368
|
|
|
1369 /* Add runes which were propagated from the previous line. */
|
|
|
1370
|
|
|
1371 static prop_block_dynarr *
|
|
|
1372 add_propagation_runes (prop_block_dynarr **prop, pos_data *data)
|
|
|
1373 {
|
|
|
1374 /* #### Remember to handle start_col parameter of data when the rest of
|
|
|
1375 this is finished. */
|
|
|
1376 /* #### Chuck -- I've redone this function a bit. It looked like the
|
|
|
1377 case of not all the propagation blocks being added was not handled
|
|
|
1378 well. */
|
|
|
1379 /* #### Chuck -- I also think the double indirection of PROP is kind
|
|
|
1380 of bogus. A cleaner solution is just to check for
|
|
|
1381 Dynarr_length (prop) > 0. */
|
|
|
1382 /* #### This function also doesn't even pay attention to ADD_FAILED!
|
|
|
1383 This is seriously fucked! Seven ####'s in 130 lines -- is that a
|
|
|
1384 record? */
|
|
|
1385 int elt;
|
|
|
1386 prop_block_dynarr *add_failed;
|
|
|
1387 Bytind bi_old_cursor_bufpos = data->bi_cursor_bufpos;
|
|
|
1388 unsigned int old_cursor_type = data->cursor_type;
|
|
|
1389
|
|
|
1390 for (elt = 0; elt < Dynarr_length (*prop); elt++)
|
|
|
1391 {
|
|
|
1392 struct prop_block *pb = Dynarr_atp (*prop, elt);
|
|
|
1393
|
|
|
1394 switch (pb->type)
|
|
|
1395 {
|
|
|
1396 case PROP_CHAR:
|
|
|
1397 data->ch = pb->data.p_char.ch;
|
|
|
1398 data->bi_cursor_bufpos = pb->data.p_char.bi_cursor_bufpos;
|
|
|
1399 data->cursor_type = pb->data.p_char.cursor_type;
|
|
|
1400 add_failed = add_emchar_rune (data);
|
|
|
1401
|
|
|
1402 if (add_failed)
|
|
|
1403 goto oops_no_more_space;
|
|
|
1404 break;
|
|
|
1405 case PROP_STRING:
|
|
|
1406 if (pb->data.p_string.str)
|
|
|
1407 xfree (pb->data.p_string.str);
|
|
|
1408 /* #### bogus bogus -- this doesn't do anything!
|
|
|
1409 Should probably call add_bufbyte_string_runes(),
|
|
|
1410 once that function is fixed. */
|
|
|
1411 break;
|
|
|
1412 case PROP_MINIBUF_PROMPT:
|
|
|
1413 {
|
|
|
1414 face_index old_findex = data->findex;
|
|
|
1415 Bytind bi_old_bufpos = data->bi_bufpos;
|
|
|
1416
|
|
|
1417 data->findex = DEFAULT_INDEX;
|
|
|
1418 data->bi_bufpos = 0;
|
|
|
1419 data->cursor_type = NO_CURSOR;
|
|
|
1420
|
|
|
1421 while (pb->data.p_string.len > 0)
|
|
|
1422 {
|
|
|
1423 data->ch = charptr_emchar (pb->data.p_string.str);
|
|
|
1424 add_failed = add_emchar_rune (data);
|
|
|
1425
|
|
|
1426 if (add_failed)
|
|
|
1427 {
|
|
|
1428 data->findex = old_findex;
|
|
|
1429 data->bi_bufpos = bi_old_bufpos;
|
|
|
1430 goto oops_no_more_space;
|
|
|
1431 }
|
|
|
1432 else
|
|
|
1433 {
|
|
|
1434 /* Complicated equivalent of ptr++, len-- */
|
|
|
1435 Bufbyte *oldpos = pb->data.p_string.str;
|
|
|
1436 INC_CHARPTR (pb->data.p_string.str);
|
|
|
1437 pb->data.p_string.len -= pb->data.p_string.str - oldpos;
|
|
|
1438 }
|
|
|
1439 }
|
|
|
1440
|
|
|
1441 data->findex = old_findex;
|
|
|
1442 /* ##### FIXME FIXME FIXME -- Upon successful return from
|
|
|
1443 this function, data->bi_bufpos is automatically incremented.
|
|
|
1444 However, we don't want that to happen if we were adding
|
|
|
1445 the minibuffer prompt. */
|
|
|
1446 {
|
|
|
1447 struct buffer *buf =
|
|
|
1448 XBUFFER (WINDOW_BUFFER (XWINDOW (data->window)));
|
|
|
1449 /* #### Chuck fix this shit or I'm gonna scream! */
|
|
|
1450 if (bi_old_bufpos > BI_BUF_BEGV (buf))
|
|
|
1451 data->bi_bufpos = prev_bytind (buf, bi_old_bufpos);
|
|
|
1452 else
|
|
|
1453 /* #### is this correct? Does anyone know?
|
|
|
1454 Does anyone care? Is this a cheesy hack or what? */
|
|
|
1455 data->bi_bufpos = BI_BUF_BEGV (buf) - 1;
|
|
|
1456 }
|
|
|
1457 }
|
|
|
1458 break;
|
|
|
1459 case PROP_BLANK:
|
|
|
1460 {
|
|
|
1461 /* #### I think it's unnecessary and misleading to preserve
|
|
|
1462 the blank_width, as it implies that the value carries
|
|
|
1463 over from one rune to the next, which is wrong. */
|
|
|
1464 int old_width = data->blank_width;
|
|
|
1465 face_index old_findex = data->findex;
|
|
|
1466
|
|
|
1467 data->findex = pb->data.p_blank.findex;
|
|
|
1468 data->blank_width = pb->data.p_blank.width;
|
|
|
1469 data->bi_cursor_bufpos = 0;
|
|
|
1470 data->cursor_type = IGNORE_CURSOR;
|
|
|
1471
|
|
|
1472 if (data->pixpos + data->blank_width > data->max_pixpos)
|
|
|
1473 data->blank_width = data->max_pixpos - data->pixpos;
|
|
|
1474
|
|
|
1475 /* We pass a bogus value of char_tab_width. It shouldn't
|
|
|
1476 matter because unless something is really screwed up
|
|
|
1477 this call won't cause that arg to be used. */
|
|
|
1478 add_failed = add_blank_rune (data, XWINDOW (data->window), 0);
|
|
|
1479
|
|
|
1480 /* This can happen in the case where we have a tab which
|
|
|
1481 is wider than the window. */
|
|
|
1482 if (data->blank_width != pb->data.p_blank.width)
|
|
|
1483 {
|
|
|
1484 pb->data.p_blank.width -= data->blank_width;
|
|
|
1485 add_failed = ADD_FAILED;
|
|
|
1486 }
|
|
|
1487
|
|
|
1488 data->findex = old_findex;
|
|
|
1489 data->blank_width = old_width;
|
|
|
1490
|
|
|
1491 if (add_failed)
|
|
|
1492 goto oops_no_more_space;
|
|
|
1493 }
|
|
|
1494 break;
|
|
|
1495 default:
|
|
|
1496 abort ();
|
|
|
1497 }
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 oops_no_more_space:
|
|
|
1501
|
|
|
1502 data->bi_cursor_bufpos = bi_old_cursor_bufpos;
|
|
|
1503 data->cursor_type = old_cursor_type;
|
|
|
1504 if (elt < Dynarr_length (*prop))
|
|
|
1505 {
|
|
|
1506 Dynarr_delete_many (*prop, 0, elt);
|
|
|
1507 return *prop;
|
|
|
1508 }
|
|
|
1509 else
|
|
|
1510 {
|
|
|
1511 Dynarr_free (*prop);
|
|
|
1512 return NULL;
|
|
|
1513 }
|
|
|
1514 }
|
|
|
1515
|
|
|
1516 /* Add 'text layout glyphs at position POS_TYPE that are contained to
|
|
|
1517 the display block, but add all other types to the appropriate list
|
|
|
1518 of the display line. They will be added later by different
|
|
|
1519 routines. */
|
|
|
1520
|
|
|
1521 static prop_block_dynarr *
|
|
|
1522 add_glyph_rune (pos_data *data, struct glyph_block *gb, int pos_type,
|
|
|
1523 int allow_cursor, struct glyph_cachel *cachel)
|
|
|
1524 {
|
|
|
1525 struct window *w = XWINDOW (data->window);
|
|
|
1526
|
|
440
|
1527 /* If window faces changed, and glyph instance is text, then
|
|
|
1528 glyph sizes might have changed too */
|
|
|
1529 invalidate_glyph_geometry_maybe (gb->glyph, w);
|
|
|
1530
|
|
428
|
1531 /* A nil extent indicates a special glyph (ex. truncator). */
|
|
|
1532 if (NILP (gb->extent)
|
|
|
1533 || (pos_type == BEGIN_GLYPHS &&
|
|
|
1534 extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT)
|
|
|
1535 || (pos_type == END_GLYPHS &&
|
|
|
1536 extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_TEXT))
|
|
|
1537 {
|
|
|
1538 struct rune rb;
|
|
|
1539 int width;
|
|
|
1540 int xoffset = 0;
|
|
|
1541 int ascent, descent;
|
|
|
1542 Lisp_Object baseline;
|
|
|
1543 Lisp_Object face;
|
|
|
1544
|
|
|
1545 if (cachel)
|
|
|
1546 width = cachel->width;
|
|
|
1547 else
|
|
438
|
1548 width = glyph_width (gb->glyph, data->window);
|
|
428
|
1549
|
|
|
1550 if (!width)
|
|
|
1551 return NULL;
|
|
|
1552
|
|
|
1553 if (data->start_col || data->start_col_xoffset)
|
|
|
1554 {
|
|
|
1555 prop_block_dynarr *retval;
|
|
|
1556 int glyph_char_width = width / space_width (w);
|
|
|
1557
|
|
|
1558 /* If we still have not fully scrolled horizontally after
|
|
|
1559 taking into account the width of the glyph, subtract its
|
|
|
1560 width and return. */
|
|
|
1561 if (glyph_char_width < data->start_col)
|
|
|
1562 {
|
|
|
1563 data->start_col -= glyph_char_width;
|
|
|
1564 return NULL;
|
|
|
1565 }
|
|
|
1566 else if (glyph_char_width == data->start_col)
|
|
|
1567 width = 0;
|
|
|
1568 else
|
|
|
1569 {
|
|
|
1570 xoffset = space_width (w) * data->start_col;
|
|
|
1571 width -= xoffset;
|
|
|
1572
|
|
|
1573 /* #### Can this happen? */
|
|
|
1574 if (width < 0)
|
|
|
1575 width = 0;
|
|
|
1576 }
|
|
|
1577
|
|
|
1578 data->start_col = 0;
|
|
|
1579 retval = add_hscroll_rune (data);
|
|
|
1580
|
|
|
1581 /* Could be caused by the handling of the hscroll rune. */
|
|
|
1582 if (retval != NULL || !width)
|
|
|
1583 return retval;
|
|
|
1584 }
|
|
|
1585 else
|
|
|
1586 xoffset = 0;
|
|
|
1587
|
|
|
1588 if (data->pixpos + width > data->max_pixpos)
|
|
|
1589 {
|
|
|
1590 /* If this is the first object we are attempting to add to
|
|
|
1591 the line then we ignore the horizontal_clip threshold.
|
|
|
1592 Otherwise we will loop until the bottom of the window
|
|
|
1593 continually failing to add this glyph because it is wider
|
|
|
1594 than the window. We could alternatively just completely
|
|
|
1595 ignore the glyph and proceed from there but I think that
|
|
|
1596 this is a better solution. */
|
|
|
1597 if (Dynarr_length (data->db->runes)
|
|
|
1598 && data->max_pixpos - data->pixpos < horizontal_clip)
|
|
|
1599 return ADD_FAILED;
|
|
|
1600 else
|
|
|
1601 width = data->max_pixpos - data->pixpos;
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 if (cachel)
|
|
|
1605 {
|
|
|
1606 ascent = cachel->ascent;
|
|
|
1607 descent = cachel->descent;
|
|
|
1608 }
|
|
|
1609 else
|
|
|
1610 {
|
|
438
|
1611 ascent = glyph_ascent (gb->glyph, data->window);
|
|
|
1612 descent = glyph_descent (gb->glyph, data->window);
|
|
428
|
1613 }
|
|
|
1614
|
|
|
1615 baseline = glyph_baseline (gb->glyph, data->window);
|
|
|
1616
|
|
|
1617 if (glyph_contrib_p (gb->glyph, data->window))
|
|
|
1618 {
|
|
|
1619 /* A pixmap that has not had a baseline explicitly set. Its
|
|
|
1620 contribution will be determined later. */
|
|
|
1621 if (NILP (baseline))
|
|
|
1622 {
|
|
|
1623 int height = ascent + descent;
|
|
|
1624 data->max_pixmap_height = max (data->max_pixmap_height, height);
|
|
|
1625 }
|
|
|
1626
|
|
|
1627 /* A string so determine contribution normally. */
|
|
|
1628 else if (EQ (baseline, Qt))
|
|
|
1629 {
|
|
|
1630 data->new_ascent = max (data->new_ascent, ascent);
|
|
|
1631 data->new_descent = max (data->new_descent, descent);
|
|
|
1632 }
|
|
|
1633
|
|
|
1634 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
1635 contribution here. */
|
|
|
1636 else if (INTP (baseline))
|
|
|
1637 {
|
|
|
1638 int height = ascent + descent;
|
|
|
1639 int pix_ascent, pix_descent;
|
|
|
1640
|
|
|
1641 pix_ascent = height * XINT (baseline) / 100;
|
|
|
1642 pix_descent = height - pix_ascent;
|
|
|
1643
|
|
|
1644 data->new_ascent = max (data->new_ascent, pix_ascent);
|
|
|
1645 data->new_descent = max (data->new_descent, pix_descent);
|
|
|
1646 }
|
|
|
1647
|
|
|
1648 /* Otherwise something is screwed up. */
|
|
|
1649 else
|
|
|
1650 abort ();
|
|
|
1651 }
|
|
|
1652
|
|
|
1653 face = glyph_face (gb->glyph, data->window);
|
|
|
1654 if (NILP (face))
|
|
|
1655 rb.findex = data->findex;
|
|
|
1656 else
|
|
|
1657 rb.findex = get_builtin_face_cache_index (w, face);
|
|
|
1658
|
|
|
1659 rb.xpos = data->pixpos;
|
|
|
1660 rb.width = width;
|
|
|
1661 rb.bufpos = 0; /* glyphs are never "at" anywhere */
|
|
|
1662 if (data->bi_endpos)
|
|
|
1663 /* #### is this necessary at all? */
|
|
|
1664 rb.endpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1665 data->bi_endpos);
|
|
|
1666 else
|
|
|
1667 rb.endpos = 0;
|
|
|
1668 rb.type = RUNE_DGLYPH;
|
|
|
1669 /* #### Ben sez: this is way bogus if the glyph is a string.
|
|
|
1670 You should not make the output routines have to cope with
|
|
|
1671 this. The string could contain Mule characters, or non-
|
|
|
1672 printable characters, or characters to be passed through
|
|
|
1673 the display table, or non-character objects (when this gets
|
|
|
1674 implemented), etc. Instead, this routine here should parse
|
|
|
1675 the string into a series of runes. */
|
|
|
1676 rb.object.dglyph.glyph = gb->glyph;
|
|
|
1677 rb.object.dglyph.extent = gb->extent;
|
|
|
1678 rb.object.dglyph.xoffset = xoffset;
|
|
|
1679
|
|
|
1680 if (allow_cursor)
|
|
|
1681 {
|
|
|
1682 rb.bufpos = bytind_to_bufpos (XBUFFER (WINDOW_BUFFER (w)),
|
|
|
1683 data->bi_bufpos);
|
|
|
1684
|
|
|
1685 if (data->cursor_type == CURSOR_ON)
|
|
|
1686 {
|
|
|
1687 if (data->bi_bufpos == data->bi_cursor_bufpos)
|
|
|
1688 {
|
|
|
1689 rb.cursor_type = CURSOR_ON;
|
|
|
1690 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1691 }
|
|
|
1692 else
|
|
|
1693 rb.cursor_type = CURSOR_OFF;
|
|
|
1694 }
|
|
|
1695 else if (data->cursor_type == NEXT_CURSOR)
|
|
|
1696 {
|
|
|
1697 rb.cursor_type = CURSOR_ON;
|
|
|
1698 data->cursor_x = Dynarr_length (data->db->runes);
|
|
|
1699 data->cursor_type = NO_CURSOR;
|
|
|
1700 }
|
|
|
1701 else if (data->cursor_type == IGNORE_CURSOR)
|
|
|
1702 rb.cursor_type = IGNORE_CURSOR;
|
|
|
1703 else if (data->cursor_type == NO_CURSOR)
|
|
|
1704 rb.cursor_type = NO_CURSOR;
|
|
|
1705 else
|
|
|
1706 rb.cursor_type = CURSOR_OFF;
|
|
|
1707 }
|
|
|
1708 else
|
|
|
1709 rb.cursor_type = CURSOR_OFF;
|
|
|
1710
|
|
|
1711 Dynarr_add (data->db->runes, rb);
|
|
|
1712 data->pixpos += width;
|
|
|
1713
|
|
|
1714 return NULL;
|
|
|
1715 }
|
|
|
1716 else
|
|
|
1717 {
|
|
|
1718 if (!NILP (glyph_face (gb->glyph, data->window)))
|
|
|
1719 gb->findex =
|
|
|
1720 get_builtin_face_cache_index (w, glyph_face (gb->glyph,
|
|
|
1721 data->window));
|
|
|
1722 else
|
|
|
1723 gb->findex = data->findex;
|
|
|
1724
|
|
|
1725 if (pos_type == BEGIN_GLYPHS)
|
|
|
1726 {
|
|
|
1727 if (!data->dl->left_glyphs)
|
|
|
1728 data->dl->left_glyphs = Dynarr_new (glyph_block);
|
|
|
1729 Dynarr_add (data->dl->left_glyphs, *gb);
|
|
|
1730 return NULL;
|
|
|
1731 }
|
|
|
1732 else if (pos_type == END_GLYPHS)
|
|
|
1733 {
|
|
|
1734 if (!data->dl->right_glyphs)
|
|
|
1735 data->dl->right_glyphs = Dynarr_new (glyph_block);
|
|
|
1736 Dynarr_add (data->dl->right_glyphs, *gb);
|
|
|
1737 return NULL;
|
|
|
1738 }
|
|
|
1739 else
|
|
|
1740 abort (); /* there are no unknown types */
|
|
|
1741 }
|
|
|
1742
|
|
|
1743 return NULL; /* shut up compiler */
|
|
|
1744 }
|
|
|
1745
|
|
|
1746 /* Add all glyphs at position POS_TYPE that are contained in the given
|
|
|
1747 data. */
|
|
|
1748
|
|
|
1749 static prop_block_dynarr *
|
|
|
1750 add_glyph_runes (pos_data *data, int pos_type)
|
|
|
1751 {
|
|
|
1752 /* #### This still needs to handle the start_col parameter. Duh, Chuck,
|
|
|
1753 why didn't you just modify add_glyph_rune in the first place? */
|
|
|
1754 int elt;
|
|
|
1755 glyph_block_dynarr *glyph_arr = (pos_type == BEGIN_GLYPHS
|
|
|
1756 ? data->ef->begin_glyphs
|
|
|
1757 : data->ef->end_glyphs);
|
|
|
1758 prop_block_dynarr *prop;
|
|
|
1759
|
|
|
1760 for (elt = 0; elt < Dynarr_length (glyph_arr); elt++)
|
|
|
1761 {
|
|
|
1762 prop = add_glyph_rune (data, Dynarr_atp (glyph_arr, elt), pos_type, 0,
|
|
|
1763 0);
|
|
|
1764
|
|
|
1765 if (prop)
|
|
|
1766 {
|
|
|
1767 /* #### Add some propagation information. */
|
|
|
1768 return prop;
|
|
|
1769 }
|
|
|
1770 }
|
|
|
1771
|
|
|
1772 Dynarr_reset (glyph_arr);
|
|
|
1773
|
|
|
1774 return NULL;
|
|
|
1775 }
|
|
|
1776
|
|
|
1777 /* Given a position for a buffer in a window, ensure that the given
|
|
|
1778 display line DL accurately represents the text on a line starting
|
|
|
1779 at the given position.
|
|
|
1780
|
|
|
1781 NOTE NOTE NOTE NOTE: This function works with and returns Bytinds.
|
|
|
1782 You must do appropriate conversion. */
|
|
|
1783
|
|
|
1784 static Bytind
|
|
|
1785 create_text_block (struct window *w, struct display_line *dl,
|
|
|
1786 Bytind bi_start_pos, prop_block_dynarr **prop,
|
|
|
1787 int type)
|
|
|
1788 {
|
|
|
1789 struct frame *f = XFRAME (w->frame);
|
|
|
1790 struct buffer *b = XBUFFER (w->buffer);
|
|
|
1791 struct device *d = XDEVICE (f->device);
|
|
|
1792
|
|
|
1793 pos_data data;
|
|
|
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)
|
|
434
|
1811 : (!NILP (b->selective_display) ? -1 : 0));
|
|
428
|
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.
|
|
|
1827
|
|
|
1828 So instead, we extend the display-table concept, which was
|
|
|
1829 historically limited to 256-byte vectors, to one of the
|
|
|
1830 following:
|
|
|
1831
|
|
|
1832 a) A 256-entry vector, for backward compatibility;
|
|
|
1833 b) char-table, mapping characters to values;
|
|
|
1834 c) range-table, mapping ranges of characters to values;
|
|
|
1835 d) a list of the above.
|
|
|
1836
|
|
|
1837 The (d) option allows you to specify multiple display tables
|
|
|
1838 instead of just one. Each display table can specify conversions
|
|
|
1839 for some characters and leave others unchanged. The way the
|
|
|
1840 character gets displayed is determined by the first display table
|
|
|
1841 with a binding for that character. This way, you could call a
|
|
|
1842 function `enable-hex-display' that adds a hex display-table to
|
|
|
1843 the list of display tables for the current buffer.
|
|
|
1844
|
|
|
1845 #### ...not yet implemented... Also, we extend the concept of
|
|
|
1846 "mapping" to include a printf-like spec. Thus you can make all
|
|
|
1847 extended characters show up as hex with a display table like
|
|
|
1848 this:
|
|
|
1849
|
|
|
1850 #s(range-table data ((256 524288) (format "%x")))
|
|
|
1851
|
|
|
1852 Since more than one display table is possible, you have
|
|
|
1853 great flexibility in mapping ranges of characters. */
|
|
|
1854 Emchar printable_min = (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
|
1855 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
1856 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
1857 ? 255 : 160));
|
|
|
1858
|
|
|
1859 Lisp_Object face_dt, window_dt;
|
|
|
1860
|
|
|
1861 /* The text display block for this display line. */
|
|
|
1862 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
1863
|
|
|
1864 /* The first time through the main loop we need to force the glyph
|
|
|
1865 data to be updated. */
|
|
|
1866 int initial = 1;
|
|
|
1867
|
|
|
1868 /* Apparently the new extent_fragment_update returns an end position
|
|
|
1869 equal to the position passed in if there are no more runs to be
|
|
|
1870 displayed. */
|
|
|
1871 int no_more_frags = 0;
|
|
|
1872
|
|
|
1873 Lisp_Object synch_minibuffers_value =
|
|
|
1874 symbol_value_in_buffer (Qsynchronize_minibuffers, w->buffer);
|
|
|
1875
|
|
|
1876 dl->used_prop_data = 0;
|
|
|
1877 dl->num_chars = 0;
|
|
|
1878
|
|
|
1879 xzero (data);
|
|
|
1880 data.ef = extent_fragment_new (w->buffer, f);
|
|
|
1881
|
|
|
1882 /* These values are used by all of the rune addition routines. We add
|
|
|
1883 them to this structure for ease of passing. */
|
|
|
1884 data.d = d;
|
|
|
1885 XSETWINDOW (data.window, w);
|
|
|
1886 data.string = Qnil;
|
|
|
1887 data.db = db;
|
|
|
1888 data.dl = dl;
|
|
|
1889
|
|
|
1890 data.bi_bufpos = bi_start_pos;
|
|
|
1891 data.pixpos = dl->bounds.left_in;
|
|
|
1892 data.last_charset = Qunbound;
|
|
|
1893 data.last_findex = DEFAULT_INDEX;
|
|
|
1894 data.result_str = Qnil;
|
|
|
1895
|
|
|
1896 /* Set the right boundary adjusting it to take into account any end
|
|
|
1897 glyph. Save the width of the end glyph for later use. */
|
|
|
1898 data.max_pixpos = dl->bounds.right_in;
|
|
|
1899 if (truncate_win)
|
|
|
1900 end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
|
|
|
1901 else
|
|
|
1902 end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
|
|
|
1903 data.max_pixpos -= end_glyph_width;
|
|
|
1904
|
|
|
1905 if (cursor_in_echo_area && MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
1906 {
|
|
|
1907 data.bi_cursor_bufpos = BI_BUF_ZV (b);
|
|
|
1908 data.cursor_type = CURSOR_ON;
|
|
|
1909 }
|
|
|
1910 else if (MINI_WINDOW_P (w) && !active_minibuffer)
|
|
|
1911 data.cursor_type = NO_CURSOR;
|
|
|
1912 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)) &&
|
|
|
1913 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
1914 d == XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d))))&&
|
|
|
1915 f == XFRAME(DEVICE_SELECTED_FRAME(d)))
|
|
|
1916 {
|
|
|
1917 data.bi_cursor_bufpos = BI_BUF_PT (b);
|
|
|
1918 data.cursor_type = CURSOR_ON;
|
|
|
1919 }
|
|
|
1920 else if (w == XWINDOW (FRAME_SELECTED_WINDOW (f)))
|
|
|
1921 {
|
|
|
1922 data.bi_cursor_bufpos = bi_marker_position (w->pointm[type]);
|
|
|
1923 data.cursor_type = CURSOR_ON;
|
|
|
1924 }
|
|
|
1925 else
|
|
|
1926 data.cursor_type = NO_CURSOR;
|
|
|
1927 data.cursor_x = -1;
|
|
|
1928
|
|
|
1929 data.start_col = w->hscroll;
|
|
|
1930 data.start_col_xoffset = w->left_xoffset;
|
|
|
1931 data.bi_start_col_enabled = (w->hscroll ? bi_start_pos : 0);
|
|
|
1932 data.hscroll_glyph_width_adjust = 0;
|
|
|
1933
|
|
|
1934 /* We regenerate the line from the very beginning. */
|
|
|
1935 Dynarr_reset (db->runes);
|
|
|
1936
|
|
|
1937 /* Why is this less than or equal and not just less than? If the
|
|
|
1938 starting position is already equal to the maximum we can't add
|
|
|
1939 anything else, right? Wrong. We might still have a newline to
|
|
|
1940 add. A newline can use the room allocated for an end glyph since
|
|
|
1941 if we add it we know we aren't going to be adding any end
|
|
|
1942 glyph. */
|
|
|
1943
|
|
|
1944 /* #### Chuck -- I think this condition should be while (1).
|
|
|
1945 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
1946 and the begin-glyph ends exactly at the end of the window, the
|
|
|
1947 end-glyph and text might not be displayed. while (1) ensures
|
|
|
1948 that the loop terminates only when either (a) there is
|
|
|
1949 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
1950
|
|
|
1951 #### Also I think you need to ensure that the operation
|
|
|
1952 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
1953 can't get interrupted in the middle. If you run off the end
|
|
|
1954 of the line during that operation, then you keep accumulating
|
|
|
1955 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
1956 there's a begin glyph at a particular position and attempting
|
|
|
1957 to display that glyph results in window-end being hit and
|
|
|
1958 propagation data being generated, then the character at that
|
|
|
1959 position won't be displayed.
|
|
|
1960
|
|
|
1961 #### See also the comment after the end of this loop, below.
|
|
|
1962 */
|
|
|
1963 while (data.pixpos <= data.max_pixpos
|
|
|
1964 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
1965 {
|
|
|
1966 /* #### This check probably should not be necessary. */
|
|
|
1967 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
1968 {
|
|
|
1969 /* #### urk! More of this lossage! */
|
|
|
1970 data.bi_bufpos--;
|
|
|
1971 goto done;
|
|
|
1972 }
|
|
|
1973
|
|
|
1974 /* If selective display was an integer and we aren't working on
|
|
|
1975 a continuation line then find the next line we are actually
|
|
|
1976 supposed to display. */
|
|
|
1977 if (selective > 0
|
|
|
1978 && (data.bi_bufpos == BI_BUF_BEGV (b)
|
|
|
1979 || BUF_FETCH_CHAR (b, prev_bytind (b, data.bi_bufpos)) == '\n'))
|
|
|
1980 {
|
|
|
1981 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
1982 {
|
|
|
1983 data.bi_bufpos =
|
|
|
1984 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
1985 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
1986 {
|
|
|
1987 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
1988 goto done;
|
|
|
1989 }
|
|
|
1990 }
|
|
|
1991 }
|
|
|
1992
|
|
|
1993 /* Check for face changes. */
|
|
|
1994 if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
|
|
|
1995 {
|
|
|
1996 /* Now compute the face and begin/end-glyph information. */
|
|
|
1997 data.findex =
|
|
|
1998 /* Remember that the extent-fragment routines deal in Bytind's. */
|
|
|
1999 extent_fragment_update (w, data.ef, data.bi_bufpos);
|
|
|
2000
|
|
|
2001 get_display_tables (w, data.findex, &face_dt, &window_dt);
|
|
|
2002
|
|
|
2003 if (data.bi_bufpos == data.ef->end)
|
|
|
2004 no_more_frags = 1;
|
|
|
2005 }
|
|
|
2006 initial = 0;
|
|
|
2007
|
|
|
2008 /* Determine what is next to be displayed. We first handle any
|
|
|
2009 glyphs returned by glyphs_at_bufpos. If there are no glyphs to
|
|
|
2010 display then we determine what to do based on the character at the
|
|
|
2011 current buffer position. */
|
|
|
2012
|
|
|
2013 /* If the current position is covered by an invisible extent, do
|
|
|
2014 nothing (except maybe add some ellipses).
|
|
|
2015
|
|
|
2016 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
2017 invisible extent should be investigated further. This is
|
|
|
2018 fairly low priority though. */
|
|
|
2019 if (data.ef->invisible)
|
|
|
2020 {
|
|
|
2021 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
2022 really know what I'm doing. */
|
|
|
2023 if (*prop)
|
|
|
2024 {
|
|
|
2025 Dynarr_free (*prop);
|
|
|
2026 *prop = 0;
|
|
|
2027 }
|
|
|
2028
|
|
|
2029 /* The extent fragment code only sets this when we should
|
|
|
2030 really display the ellipses. It makes sure the ellipses
|
|
|
2031 don't get displayed more than once in a row. */
|
|
|
2032 if (data.ef->invisible_ellipses)
|
|
|
2033 {
|
|
|
2034 struct glyph_block gb;
|
|
|
2035
|
|
|
2036 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
2037 data.ef->invisible_ellipses = 0;
|
|
|
2038 gb.extent = Qnil;
|
|
|
2039 gb.glyph = Vinvisible_text_glyph;
|
|
|
2040 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2041 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2042 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
2043 is to display a newline (for compatibility with
|
|
|
2044 selective-display-ellipses)? Maybe that's too
|
|
|
2045 abstruse. */
|
|
|
2046 if (*prop)
|
|
|
2047 goto done;
|
|
|
2048 }
|
|
|
2049
|
|
|
2050 /* If point is in an invisible region we place it on the
|
|
|
2051 next visible character. */
|
|
|
2052 if (data.cursor_type == CURSOR_ON
|
|
|
2053 && data.bi_bufpos == data.bi_cursor_bufpos)
|
|
|
2054 {
|
|
|
2055 data.cursor_type = NEXT_CURSOR;
|
|
|
2056 }
|
|
|
2057
|
|
|
2058 /* #### What if we we're dealing with a display table? */
|
|
|
2059 if (data.start_col)
|
|
|
2060 data.start_col--;
|
|
|
2061
|
|
|
2062 if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2063 goto done;
|
|
|
2064 else
|
|
|
2065 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2066 }
|
|
|
2067
|
|
|
2068 /* If there is propagation data, then it represents the current
|
|
|
2069 buffer position being displayed. Add them and advance the
|
|
|
2070 position counter. This might also add the minibuffer
|
|
|
2071 prompt. */
|
|
|
2072 else if (*prop)
|
|
|
2073 {
|
|
|
2074 dl->used_prop_data = 1;
|
|
|
2075 *prop = add_propagation_runes (prop, &data);
|
|
|
2076
|
|
|
2077 if (*prop)
|
|
|
2078 goto done; /* gee, a really narrow window */
|
|
|
2079 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2080 goto done;
|
|
|
2081 else if (data.bi_bufpos < BI_BUF_BEGV (b))
|
|
|
2082 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
|
2083 data.bi_bufpos = BI_BUF_BEGV (b);
|
|
|
2084 else
|
|
|
2085 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2086 }
|
|
|
2087
|
|
|
2088 /* If there are end glyphs, add them to the line. These are
|
|
|
2089 the end glyphs for the previous run of text. We add them
|
|
|
2090 here rather than doing them at the end of handling the
|
|
|
2091 previous run so that glyphs at the beginning and end of
|
|
|
2092 a line are handled correctly. */
|
|
|
2093 else if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
2094 {
|
|
|
2095 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
|
2096 if (*prop)
|
|
|
2097 goto done;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100 /* If there are begin glyphs, add them to the line. */
|
|
|
2101 else if (Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
2102 {
|
|
|
2103 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
|
2104 if (*prop)
|
|
|
2105 goto done;
|
|
|
2106 }
|
|
|
2107
|
|
|
2108 /* If at end-of-buffer, we've already processed begin and
|
|
|
2109 end-glyphs at this point and there's no text to process,
|
|
|
2110 so we're done. */
|
|
|
2111 else if (data.bi_bufpos == BI_BUF_ZV (b))
|
|
|
2112 goto done;
|
|
|
2113
|
|
|
2114 else
|
|
|
2115 {
|
|
|
2116 Lisp_Object entry = Qnil;
|
|
|
2117 /* Get the character at the current buffer position. */
|
|
|
2118 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
|
2119 if (!NILP (face_dt) || !NILP (window_dt))
|
|
|
2120 entry = display_table_entry (data.ch, face_dt, window_dt);
|
|
|
2121
|
|
|
2122 /* If there is a display table entry for it, hand it off to
|
|
|
2123 add_disp_table_entry_runes and let it worry about it. */
|
|
|
2124 if (!NILP (entry) && !EQ (entry, make_char (data.ch)))
|
|
|
2125 {
|
|
|
2126 *prop = add_disp_table_entry_runes (&data, entry);
|
|
|
2127
|
|
|
2128 if (*prop)
|
|
|
2129 goto done;
|
|
|
2130 }
|
|
|
2131
|
|
|
2132 /* Check if we have hit a newline character. If so, add a marker
|
|
|
2133 to the line and end this loop. */
|
|
|
2134 else if (data.ch == '\n')
|
|
|
2135 {
|
|
|
2136 /* We aren't going to be adding an end glyph so give its
|
|
|
2137 space back in order to make sure that the cursor can
|
|
|
2138 fit. */
|
|
|
2139 data.max_pixpos += end_glyph_width;
|
|
|
2140
|
|
|
2141 if (selective > 0
|
|
|
2142 && (bi_spaces_at_point
|
|
|
2143 (b, next_bytind (b, data.bi_bufpos))
|
|
|
2144 >= selective))
|
|
|
2145 {
|
|
|
2146 if (!NILP (b->selective_display_ellipses))
|
|
|
2147 {
|
|
|
2148 struct glyph_block gb;
|
|
|
2149
|
|
|
2150 gb.extent = Qnil;
|
|
|
2151 gb.glyph = Vinvisible_text_glyph;
|
|
|
2152 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2153 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2154 }
|
|
|
2155 else
|
|
|
2156 {
|
|
|
2157 /* Cheesy, cheesy, cheesy. We mark the end of the
|
|
|
2158 line with a special "character rune" whose width
|
|
|
2159 is the EOL cursor width and whose character is
|
|
|
2160 the non-printing character '\n'. */
|
|
|
2161 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2162 *prop = add_emchar_rune (&data);
|
|
|
2163 }
|
|
|
2164
|
|
|
2165 /* We need to set data.bi_bufpos to the start of the
|
|
|
2166 next visible region in order to make this line
|
|
|
2167 appear to contain all of the invisible area.
|
|
|
2168 Otherwise, the line cache won't work
|
|
|
2169 correctly. */
|
|
|
2170 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2171 while (bi_spaces_at_point (b, data.bi_bufpos) >= selective)
|
|
|
2172 {
|
|
|
2173 data.bi_bufpos =
|
|
|
2174 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2175 if (data.bi_bufpos >= BI_BUF_ZV (b))
|
|
|
2176 {
|
|
|
2177 data.bi_bufpos = BI_BUF_ZV (b);
|
|
|
2178 break;
|
|
|
2179 }
|
|
|
2180 }
|
|
|
2181 if (BI_BUF_FETCH_CHAR
|
|
|
2182 (b, prev_bytind (b, data.bi_bufpos)) == '\n')
|
|
|
2183 DEC_BYTIND (b, data.bi_bufpos);
|
|
|
2184 }
|
|
|
2185 else
|
|
|
2186 {
|
|
|
2187 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2188 *prop = add_emchar_rune (&data);
|
|
|
2189 }
|
|
|
2190
|
|
|
2191 goto done;
|
|
|
2192 }
|
|
|
2193
|
|
|
2194 /* If the current character is ^M, and selective display is
|
|
|
2195 enabled, then add the invisible-text-glyph if
|
|
|
2196 selective-display-ellipses is set. In any case, this
|
|
|
2197 line is done. */
|
|
|
2198 else if (data.ch == (('M' & 037)) && selective == -1)
|
|
|
2199 {
|
|
|
2200 Bytind bi_next_bufpos;
|
|
|
2201
|
|
|
2202 /* Find the buffer position at the end of the line. */
|
|
|
2203 bi_next_bufpos =
|
|
|
2204 bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2205 if (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_next_bufpos))
|
|
|
2206 == '\n')
|
|
|
2207 DEC_BYTIND (b, bi_next_bufpos);
|
|
|
2208
|
|
|
2209 /* If the cursor is somewhere in the elided text make
|
|
|
2210 sure that the cursor gets drawn appropriately. */
|
|
|
2211 if (data.cursor_type == CURSOR_ON
|
|
|
2212 && (data.bi_cursor_bufpos >= data.bi_bufpos &&
|
|
|
2213 data.bi_cursor_bufpos < bi_next_bufpos))
|
|
|
2214 {
|
|
|
2215 data.cursor_type = NEXT_CURSOR;
|
|
|
2216 }
|
|
|
2217
|
|
|
2218 /* We won't be adding a truncation or continuation glyph
|
|
|
2219 so give up the room allocated for them. */
|
|
|
2220 data.max_pixpos += end_glyph_width;
|
|
|
2221
|
|
|
2222 if (!NILP (b->selective_display_ellipses))
|
|
|
2223 {
|
|
|
2224 /* We don't propagate anything from the invisible
|
|
|
2225 text glyph if it fails to fit. This is
|
|
|
2226 intentional. */
|
|
|
2227 struct glyph_block gb;
|
|
|
2228
|
|
|
2229 gb.extent = Qnil;
|
|
|
2230 gb.glyph = Vinvisible_text_glyph;
|
|
|
2231 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1,
|
|
|
2232 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
2233 }
|
|
|
2234
|
|
|
2235 /* Set the buffer position to the end of the line. We
|
|
|
2236 need to do this before potentially adding a newline
|
|
|
2237 so that the cursor flag will get set correctly (if
|
|
|
2238 needed). */
|
|
|
2239 data.bi_bufpos = bi_next_bufpos;
|
|
|
2240
|
|
|
2241 if (NILP (b->selective_display_ellipses)
|
|
|
2242 || data.bi_cursor_bufpos == bi_next_bufpos)
|
|
|
2243 {
|
|
|
2244 /* We have to at least add a newline character so
|
|
|
2245 that the cursor shows up properly. */
|
|
|
2246 data.ch = '\n';
|
|
|
2247 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2248 data.findex = DEFAULT_INDEX;
|
|
|
2249 data.start_col = 0;
|
|
|
2250 data.start_col_xoffset = 0;
|
|
|
2251 data.bi_start_col_enabled = 0;
|
|
|
2252
|
|
|
2253 add_emchar_rune (&data);
|
|
|
2254 }
|
|
|
2255
|
|
|
2256 /* This had better be a newline but doing it this way
|
|
|
2257 we'll see obvious incorrect results if it isn't. No
|
|
|
2258 need to abort here. */
|
|
|
2259 data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
|
|
|
2260
|
|
|
2261 goto done;
|
|
|
2262 }
|
|
|
2263
|
|
|
2264 /* If the current character is considered to be printable, then
|
|
|
2265 just add it. */
|
|
|
2266 else if (data.ch >= printable_min)
|
|
|
2267 {
|
|
|
2268 *prop = add_emchar_rune (&data);
|
|
|
2269 if (*prop)
|
|
|
2270 goto done;
|
|
|
2271 }
|
|
|
2272
|
|
|
2273 /* If the current character is a tab, determine the next tab
|
|
|
2274 starting position and add a blank rune which extends from the
|
|
|
2275 current pixel position to that starting position. */
|
|
|
2276 else if (data.ch == '\t')
|
|
|
2277 {
|
|
|
2278 int tab_start_pixpos = data.pixpos;
|
|
|
2279 int next_tab_start;
|
|
|
2280 int char_tab_width;
|
|
|
2281 int prop_width = 0;
|
|
|
2282
|
|
|
2283 if (data.start_col > 1)
|
|
434
|
2284 tab_start_pixpos -= (space_width (w) * (data.start_col - 1))
|
|
428
|
2285 + data.start_col_xoffset;
|
|
|
2286
|
|
|
2287 next_tab_start =
|
|
|
2288 next_tab_position (w, tab_start_pixpos,
|
|
|
2289 dl->bounds.left_in +
|
|
|
2290 data.hscroll_glyph_width_adjust);
|
|
|
2291 if (next_tab_start > data.max_pixpos)
|
|
|
2292 {
|
|
|
2293 prop_width = next_tab_start - data.max_pixpos;
|
|
|
2294 next_tab_start = data.max_pixpos;
|
|
|
2295 }
|
|
|
2296 data.blank_width = next_tab_start - data.pixpos;
|
|
|
2297 char_tab_width =
|
|
|
2298 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
2299
|
|
|
2300 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
2301
|
|
|
2302 /* add_blank_rune is only supposed to be called with
|
|
|
2303 sizes guaranteed to fit in the available space. */
|
|
|
2304 assert (!(*prop));
|
|
|
2305
|
|
|
2306 if (prop_width)
|
|
|
2307 {
|
|
|
2308 struct prop_block pb;
|
|
|
2309 *prop = Dynarr_new (prop_block);
|
|
|
2310
|
|
|
2311 pb.type = PROP_BLANK;
|
|
|
2312 pb.data.p_blank.width = prop_width;
|
|
|
2313 pb.data.p_blank.findex = data.findex;
|
|
|
2314 Dynarr_add (*prop, pb);
|
|
|
2315
|
|
|
2316 goto done;
|
|
|
2317 }
|
|
|
2318 }
|
|
|
2319
|
|
|
2320 /* If character is a control character, pass it off to
|
|
|
2321 add_control_char_runes.
|
|
|
2322
|
|
|
2323 The is_*() routines have undefined results on
|
|
|
2324 arguments outside of the range [-1, 255]. (This
|
|
|
2325 often bites people who carelessly use `char' instead
|
|
|
2326 of `unsigned char'.)
|
|
|
2327 */
|
|
|
2328 else if (data.ch < 0x100 && iscntrl ((Bufbyte) data.ch))
|
|
|
2329 {
|
|
|
2330 *prop = add_control_char_runes (&data, b);
|
|
|
2331
|
|
|
2332 if (*prop)
|
|
|
2333 goto done;
|
|
|
2334 }
|
|
|
2335
|
|
|
2336 /* If the character is above the ASCII range and we have not
|
|
|
2337 already handled it, then print it as an octal number. */
|
|
|
2338 else if (data.ch >= 0200)
|
|
|
2339 {
|
|
|
2340 *prop = add_octal_runes (&data);
|
|
|
2341
|
|
|
2342 if (*prop)
|
|
|
2343 goto done;
|
|
|
2344 }
|
|
|
2345
|
|
|
2346 /* Assume the current character is considered to be printable,
|
|
|
2347 then just add it. */
|
|
|
2348 else
|
|
|
2349 {
|
|
|
2350 *prop = add_emchar_rune (&data);
|
|
|
2351 if (*prop)
|
|
|
2352 goto done;
|
|
|
2353 }
|
|
|
2354
|
|
|
2355 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2356 }
|
|
|
2357 }
|
|
|
2358
|
|
|
2359 done:
|
|
|
2360
|
|
|
2361 /* Determine the starting point of the next line if we did not hit the
|
|
|
2362 end of the buffer. */
|
|
|
2363 if (data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2364 && (active_minibuffer || !NILP (synch_minibuffers_value)))
|
|
|
2365 {
|
|
|
2366 /* #### This check is not correct. If the line terminated
|
|
|
2367 due to a begin-glyph or end-glyph hitting window-end, then
|
|
|
2368 data.ch will not point to the character at data.bi_bufpos. If
|
|
|
2369 you make the two changes mentioned at the top of this loop,
|
|
|
2370 you should be able to say '(if (*prop))'. That should also
|
|
|
2371 make it possible to eliminate the data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
2372 check. */
|
|
|
2373
|
|
|
2374 /* The common case is that the line ended because we hit a newline.
|
|
|
2375 In that case, the next character is just the next buffer
|
|
|
2376 position. */
|
|
|
2377 if (data.ch == '\n')
|
|
|
2378 {
|
|
|
2379 /* If data.start_col_enabled is still true, then the window is
|
|
|
2380 scrolled far enough so that nothing on this line is visible.
|
|
|
2381 We need to stick a truncation glyph at the beginning of the
|
|
|
2382 line in that case unless the line is completely blank. */
|
|
|
2383 if (data.bi_start_col_enabled)
|
|
|
2384 {
|
|
|
2385 if (data.cursor_type == CURSOR_ON)
|
|
|
2386 {
|
|
|
2387 if (data.bi_cursor_bufpos >= bi_start_pos
|
|
|
2388 && data.bi_cursor_bufpos <= data.bi_bufpos)
|
|
|
2389 data.bi_cursor_bufpos = data.bi_bufpos;
|
|
|
2390 }
|
|
|
2391 data.findex = DEFAULT_INDEX;
|
|
|
2392 data.start_col = 0;
|
|
|
2393 data.bi_start_col_enabled = 0;
|
|
|
2394
|
|
|
2395 if (data.bi_bufpos != bi_start_pos)
|
|
|
2396 {
|
|
|
2397 struct glyph_block gb;
|
|
|
2398
|
|
|
2399 gb.extent = Qnil;
|
|
|
2400 gb.glyph = Vhscroll_glyph;
|
|
|
2401 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
2402 GLYPH_CACHEL (w, HSCROLL_GLYPH_INDEX));
|
|
|
2403 }
|
|
|
2404 else
|
|
|
2405 {
|
|
|
2406 /* This duplicates code down below to add a newline to
|
|
|
2407 the end of an otherwise empty line.*/
|
|
|
2408 data.ch = '\n';
|
|
|
2409 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2410
|
|
|
2411 add_emchar_rune (&data);
|
|
|
2412 }
|
|
|
2413 }
|
|
|
2414
|
|
|
2415 INC_BYTIND (b, data.bi_bufpos);
|
|
|
2416 }
|
|
|
2417
|
|
|
2418 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
2419 line. */
|
|
|
2420 else
|
|
|
2421 {
|
|
|
2422 struct glyph_block gb;
|
|
|
2423 struct glyph_cachel *cachel;
|
|
|
2424
|
|
|
2425 /* If the line is to be truncated then we actually have to look
|
|
|
2426 for the next newline. We also add the end-of-line glyph which
|
|
|
2427 we know will fit because we adjusted the right border before
|
|
|
2428 we starting laying out the line. */
|
|
|
2429 data.max_pixpos += end_glyph_width;
|
|
|
2430 data.findex = DEFAULT_INDEX;
|
|
|
2431 gb.extent = Qnil;
|
|
|
2432
|
|
|
2433 if (truncate_win)
|
|
|
2434 {
|
|
|
2435 Bytind bi_pos;
|
|
|
2436
|
|
|
2437 /* Now find the start of the next line. */
|
|
|
2438 bi_pos = bi_find_next_newline_no_quit (b, data.bi_bufpos, 1);
|
|
|
2439
|
|
|
2440 /* If the cursor is past the truncation line then we
|
|
|
2441 make it appear on the truncation glyph. If we've hit
|
|
|
2442 the end of the buffer then we also make the cursor
|
|
|
2443 appear unless eob is immediately preceded by a
|
|
|
2444 newline. In that case the cursor should actually
|
|
|
2445 appear on the next line. */
|
|
|
2446 if (data.cursor_type == CURSOR_ON
|
|
|
2447 && data.bi_cursor_bufpos >= data.bi_bufpos
|
|
|
2448 && (data.bi_cursor_bufpos < bi_pos ||
|
|
|
2449 (bi_pos == BI_BUF_ZV (b)
|
|
|
2450 && (bi_pos == BI_BUF_BEGV (b)
|
|
|
2451 || (BI_BUF_FETCH_CHAR (b, prev_bytind (b, bi_pos))
|
|
|
2452 != '\n')))))
|
|
|
2453 data.bi_cursor_bufpos = bi_pos;
|
|
|
2454 else
|
|
|
2455 data.cursor_type = NO_CURSOR;
|
|
|
2456
|
|
|
2457 data.bi_bufpos = bi_pos;
|
|
|
2458 gb.glyph = Vtruncation_glyph;
|
|
|
2459 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
2460 }
|
|
|
2461 else
|
|
|
2462 {
|
|
|
2463 /* The cursor can never be on the continuation glyph. */
|
|
|
2464 data.cursor_type = NO_CURSOR;
|
|
|
2465
|
|
|
2466 /* data.bi_bufpos is already at the start of the next line. */
|
|
|
2467
|
|
|
2468 gb.glyph = Vcontinuation_glyph;
|
|
|
2469 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
2470 }
|
|
|
2471
|
|
|
2472 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 1, cachel);
|
|
|
2473
|
|
|
2474 if (truncate_win && data.bi_bufpos == BI_BUF_ZV (b)
|
|
|
2475 && BI_BUF_FETCH_CHAR (b, prev_bytind (b, BI_BUF_ZV (b))) != '\n')
|
|
|
2476 /* #### Damn this losing shit. */
|
|
|
2477 data.bi_bufpos++;
|
|
|
2478 }
|
|
|
2479 }
|
|
|
2480 else if ((active_minibuffer || !NILP (synch_minibuffers_value))
|
|
|
2481 && (!echo_area_active (f) || data.bi_bufpos == BI_BUF_ZV (b)))
|
|
|
2482 {
|
|
|
2483 /* We need to add a marker to the end of the line since there is no
|
|
|
2484 newline character in order for the cursor to get drawn. We label
|
|
|
2485 it as a newline so that it gets handled correctly by the
|
|
|
2486 whitespace routines below. */
|
|
|
2487
|
|
|
2488 data.ch = '\n';
|
|
|
2489 data.blank_width = DEVMETH (d, eol_cursor_width, ());
|
|
|
2490 data.findex = DEFAULT_INDEX;
|
|
|
2491 data.start_col = 0;
|
|
|
2492 data.start_col_xoffset = 0;
|
|
|
2493 data.bi_start_col_enabled = 0;
|
|
|
2494
|
|
|
2495 data.max_pixpos += data.blank_width;
|
|
|
2496 add_emchar_rune (&data);
|
|
|
2497 data.max_pixpos -= data.blank_width;
|
|
|
2498
|
|
|
2499 /* #### urk! Chuck, this shit is bad news. Going around
|
|
|
2500 manipulating invalid positions is guaranteed to result in
|
|
|
2501 trouble sooner or later. */
|
|
|
2502 data.bi_bufpos = BI_BUF_ZV (b) + 1;
|
|
|
2503 }
|
|
|
2504
|
|
|
2505 /* Calculate left whitespace boundary. */
|
|
|
2506 {
|
|
|
2507 int elt = 0;
|
|
|
2508
|
|
|
2509 /* Whitespace past a newline is considered right whitespace. */
|
|
|
2510 while (elt < Dynarr_length (db->runes))
|
|
|
2511 {
|
|
|
2512 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2513
|
|
|
2514 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
2515 || rb->type == RUNE_BLANK)
|
|
|
2516 {
|
|
|
2517 dl->bounds.left_white += rb->width;
|
|
|
2518 elt++;
|
|
|
2519 }
|
|
|
2520 else
|
|
|
2521 elt = Dynarr_length (db->runes);
|
|
|
2522 }
|
|
|
2523 }
|
|
|
2524
|
|
|
2525 /* Calculate right whitespace boundary. */
|
|
|
2526 {
|
|
|
2527 int elt = Dynarr_length (db->runes) - 1;
|
|
|
2528 int done = 0;
|
|
|
2529
|
|
|
2530 while (!done && elt >= 0)
|
|
|
2531 {
|
|
|
2532 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
2533
|
|
|
2534 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
2535 && isspace (rb->object.chr.ch))
|
|
|
2536 && !rb->type == RUNE_BLANK)
|
|
|
2537 {
|
|
|
2538 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
2539 done = 1;
|
|
|
2540 }
|
|
|
2541
|
|
|
2542 elt--;
|
|
|
2543
|
|
|
2544 }
|
|
|
2545
|
|
|
2546 /* The line is blank so everything is considered to be right
|
|
|
2547 whitespace. */
|
|
|
2548 if (!done)
|
|
|
2549 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
2550 }
|
|
|
2551
|
|
|
2552 /* Set the display blocks bounds. */
|
|
|
2553 db->start_pos = dl->bounds.left_in;
|
|
|
2554 if (Dynarr_length (db->runes))
|
|
|
2555 {
|
|
|
2556 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
2557
|
|
|
2558 db->end_pos = rb->xpos + rb->width;
|
|
|
2559 }
|
|
|
2560 else
|
|
|
2561 db->end_pos = dl->bounds.right_white;
|
|
|
2562
|
|
|
2563 /* update line height parameters */
|
|
|
2564 if (!data.new_ascent && !data.new_descent)
|
|
|
2565 {
|
|
|
2566 /* We've got a blank line so initialize these values from the default
|
|
|
2567 face. */
|
|
|
2568 default_face_font_info (data.window, &data.new_ascent,
|
|
|
2569 &data.new_descent, 0, 0, 0);
|
|
|
2570 }
|
|
|
2571
|
|
|
2572 if (data.max_pixmap_height)
|
|
|
2573 {
|
|
|
2574 int height = data.new_ascent + data.new_descent;
|
|
|
2575 int pix_ascent, pix_descent;
|
|
|
2576
|
|
|
2577 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2578 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2579
|
|
|
2580 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2581 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2582 }
|
|
|
2583
|
|
|
2584 dl->ascent = data.new_ascent;
|
|
|
2585 dl->descent = data.new_descent;
|
|
|
2586
|
|
|
2587 {
|
|
|
2588 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
2589
|
|
|
2590 if (dl->ascent < ascent)
|
|
|
2591 dl->ascent = ascent;
|
|
|
2592 }
|
|
|
2593 {
|
|
|
2594 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
2595
|
|
|
2596 if (dl->descent < descent)
|
|
|
2597 dl->descent = descent;
|
|
|
2598 }
|
|
|
2599
|
|
|
2600 dl->cursor_elt = data.cursor_x;
|
|
|
2601 /* #### lossage lossage lossage! Fix this shit! */
|
|
|
2602 if (data.bi_bufpos > BI_BUF_ZV (b))
|
|
|
2603 dl->end_bufpos = BUF_ZV (b);
|
|
|
2604 else
|
|
|
2605 dl->end_bufpos = bytind_to_bufpos (b, data.bi_bufpos) - 1;
|
|
|
2606 if (truncate_win)
|
|
|
2607 data.dl->num_chars = column_at_point (b, dl->end_bufpos, 0);
|
|
|
2608 else
|
|
|
2609 /* This doesn't correctly take into account tabs and control
|
|
|
2610 characters but if the window isn't being truncated then this
|
|
|
2611 value isn't going to end up being used anyhow. */
|
|
|
2612 data.dl->num_chars = dl->end_bufpos - dl->bufpos;
|
|
|
2613
|
|
|
2614 /* #### handle horizontally scrolled line with text none of which
|
|
|
2615 was actually laid out. */
|
|
|
2616
|
|
|
2617 /* #### handle any remainder of overlay arrow */
|
|
|
2618
|
|
|
2619 if (*prop == ADD_FAILED)
|
|
|
2620 *prop = NULL;
|
|
|
2621
|
|
|
2622 if (truncate_win && *prop)
|
|
|
2623 {
|
|
|
2624 Dynarr_free (*prop);
|
|
|
2625 *prop = NULL;
|
|
|
2626 }
|
|
|
2627
|
|
|
2628 extent_fragment_delete (data.ef);
|
|
|
2629
|
|
|
2630 /* #### If we started at EOB, then make sure we return a value past
|
|
|
2631 it so that regenerate_window will exit properly. This is bogus.
|
|
|
2632 The main loop should get fixed so that it isn't necessary to call
|
|
|
2633 this function if we are already at EOB. */
|
|
|
2634
|
|
|
2635 if (data.bi_bufpos == BI_BUF_ZV (b) && bi_start_pos == BI_BUF_ZV (b))
|
|
|
2636 return data.bi_bufpos + 1; /* Yuck! */
|
|
|
2637 else
|
|
|
2638 return data.bi_bufpos;
|
|
|
2639 }
|
|
|
2640
|
|
|
2641 /* Display the overlay arrow at the beginning of the given line. */
|
|
|
2642
|
|
|
2643 static int
|
|
|
2644 create_overlay_glyph_block (struct window *w, struct display_line *dl)
|
|
|
2645 {
|
|
|
2646 struct frame *f = XFRAME (w->frame);
|
|
|
2647 struct device *d = XDEVICE (f->device);
|
|
|
2648 pos_data data;
|
|
|
2649
|
|
|
2650 /* If Voverlay_arrow_string isn't valid then just fail silently. */
|
|
|
2651 if (!STRINGP (Voverlay_arrow_string) && !GLYPHP (Voverlay_arrow_string))
|
|
|
2652 return 0;
|
|
|
2653
|
|
|
2654 xzero (data);
|
|
|
2655 data.ef = NULL;
|
|
|
2656 data.d = d;
|
|
|
2657 XSETWINDOW (data.window, w);
|
|
|
2658 data.db = get_display_block_from_line (dl, OVERWRITE);
|
|
|
2659 data.dl = dl;
|
|
|
2660 data.pixpos = dl->bounds.left_in;
|
|
|
2661 data.max_pixpos = dl->bounds.right_in;
|
|
|
2662 data.cursor_type = NO_CURSOR;
|
|
|
2663 data.cursor_x = -1;
|
|
|
2664 data.findex = DEFAULT_INDEX;
|
|
|
2665 data.last_charset = Qunbound;
|
|
|
2666 data.last_findex = DEFAULT_INDEX;
|
|
|
2667 data.result_str = Qnil;
|
|
|
2668 data.string = Qnil;
|
|
|
2669
|
|
|
2670 Dynarr_reset (data.db->runes);
|
|
|
2671
|
|
|
2672 if (STRINGP (Voverlay_arrow_string))
|
|
|
2673 {
|
|
|
2674 add_bufbyte_string_runes
|
|
|
2675 (&data,
|
|
|
2676 XSTRING_DATA (Voverlay_arrow_string),
|
|
|
2677 XSTRING_LENGTH (Voverlay_arrow_string),
|
|
|
2678 1);
|
|
|
2679 }
|
|
|
2680 else if (GLYPHP (Voverlay_arrow_string))
|
|
|
2681 {
|
|
|
2682 struct glyph_block gb;
|
|
|
2683
|
|
|
2684 gb.glyph = Voverlay_arrow_string;
|
|
|
2685 gb.extent = Qnil;
|
|
|
2686 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
2687 }
|
|
|
2688
|
|
|
2689 if (data.max_pixmap_height)
|
|
|
2690 {
|
|
|
2691 int height = data.new_ascent + data.new_descent;
|
|
|
2692 int pix_ascent, pix_descent;
|
|
|
2693
|
|
|
2694 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
2695 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
2696
|
|
|
2697 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
2698 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
2699 }
|
|
|
2700
|
|
|
2701 dl->ascent = data.new_ascent;
|
|
|
2702 dl->descent = data.new_descent;
|
|
|
2703
|
|
|
2704 data.db->start_pos = dl->bounds.left_in;
|
|
|
2705 data.db->end_pos = data.pixpos;
|
|
|
2706
|
|
|
2707 return data.pixpos - dl->bounds.left_in;
|
|
|
2708 }
|
|
|
2709
|
|
|
2710 /* Add a type of glyph to a margin display block. */
|
|
|
2711
|
|
|
2712 static int
|
|
|
2713 add_margin_runes (struct display_line *dl, struct display_block *db, int start,
|
|
|
2714 int count, enum glyph_layout layout, int side, Lisp_Object window)
|
|
|
2715 {
|
|
|
2716 glyph_block_dynarr *gbd = (side == LEFT_GLYPHS
|
|
|
2717 ? dl->left_glyphs
|
|
|
2718 : dl->right_glyphs);
|
|
|
2719 int elt, end;
|
|
|
2720 int xpos = start;
|
|
|
2721 int reverse;
|
|
|
2722
|
|
|
2723 if ((layout == GL_WHITESPACE && side == LEFT_GLYPHS)
|
|
|
2724 || (layout == GL_INSIDE_MARGIN && side == RIGHT_GLYPHS))
|
|
|
2725 {
|
|
|
2726 reverse = 1;
|
|
|
2727 elt = Dynarr_length (gbd) - 1;
|
|
|
2728 end = 0;
|
|
|
2729 }
|
|
|
2730 else
|
|
|
2731 {
|
|
|
2732 reverse = 0;
|
|
|
2733 elt = 0;
|
|
|
2734 end = Dynarr_length (gbd);
|
|
|
2735 }
|
|
|
2736
|
|
|
2737 while (count && ((!reverse && elt < end) || (reverse && elt >= end)))
|
|
|
2738 {
|
|
|
2739 struct glyph_block *gb = Dynarr_atp (gbd, elt);
|
|
|
2740
|
|
|
2741 if (NILP (gb->extent))
|
|
|
2742 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2743
|
|
|
2744 if (gb->active &&
|
|
|
2745 ((side == LEFT_GLYPHS &&
|
|
|
2746 extent_begin_glyph_layout (XEXTENT (gb->extent)) == layout)
|
|
|
2747 || (side == RIGHT_GLYPHS &&
|
|
|
2748 extent_end_glyph_layout (XEXTENT (gb->extent)) == layout)))
|
|
|
2749 {
|
|
|
2750 struct rune rb;
|
|
|
2751
|
|
|
2752 rb.width = gb->width;
|
|
|
2753 rb.findex = gb->findex;
|
|
|
2754 rb.xpos = xpos;
|
|
|
2755 rb.bufpos = -1;
|
|
|
2756 rb.endpos = 0;
|
|
|
2757 rb.type = RUNE_DGLYPH;
|
|
|
2758 rb.object.dglyph.glyph = gb->glyph;
|
|
|
2759 rb.object.dglyph.extent = gb->extent;
|
|
|
2760 rb.object.dglyph.xoffset = 0;
|
|
|
2761 rb.cursor_type = CURSOR_OFF;
|
|
|
2762
|
|
|
2763 Dynarr_add (db->runes, rb);
|
|
|
2764 xpos += rb.width;
|
|
|
2765 count--;
|
|
|
2766 gb->active = 0;
|
|
|
2767
|
|
|
2768 if (glyph_contrib_p (gb->glyph, window))
|
|
|
2769 {
|
|
|
2770 unsigned short ascent, descent;
|
|
|
2771 Lisp_Object baseline = glyph_baseline (gb->glyph, window);
|
|
|
2772
|
|
438
|
2773 ascent = glyph_ascent (gb->glyph, window);
|
|
|
2774 descent = glyph_descent (gb->glyph, window);
|
|
428
|
2775
|
|
|
2776 /* A pixmap that has not had a baseline explicitly set.
|
|
|
2777 We use the existing ascent / descent ratio of the
|
|
|
2778 line. */
|
|
|
2779 if (NILP (baseline))
|
|
|
2780 {
|
|
|
2781 int gheight = ascent + descent;
|
|
|
2782 int line_height = dl->ascent + dl->descent;
|
|
|
2783 int pix_ascent, pix_descent;
|
|
|
2784
|
|
|
2785 pix_descent = (int) (gheight * dl->descent) / line_height;
|
|
|
2786 pix_ascent = gheight - pix_descent;
|
|
|
2787
|
|
|
2788 dl->ascent = max ((int) dl->ascent, pix_ascent);
|
|
|
2789 dl->descent = max ((int) dl->descent, pix_descent);
|
|
|
2790 }
|
|
|
2791
|
|
|
2792 /* A string so determine contribution normally. */
|
|
|
2793 else if (EQ (baseline, Qt))
|
|
|
2794 {
|
|
|
2795 dl->ascent = max (dl->ascent, ascent);
|
|
|
2796 dl->descent = max (dl->descent, descent);
|
|
|
2797 }
|
|
|
2798
|
|
|
2799 /* A pixmap with an explicitly set baseline. We determine the
|
|
|
2800 contribution here. */
|
|
|
2801 else if (INTP (baseline))
|
|
|
2802 {
|
|
|
2803 int height = ascent + descent;
|
|
|
2804 int pix_ascent, pix_descent;
|
|
|
2805
|
|
|
2806 pix_ascent = height * XINT (baseline) / 100;
|
|
|
2807 pix_descent = height - pix_ascent;
|
|
|
2808
|
|
|
2809 dl->ascent = max ((int) dl->ascent, pix_ascent);
|
|
|
2810 dl->descent = max ((int) dl->descent, pix_descent);
|
|
|
2811 }
|
|
|
2812
|
|
|
2813 /* Otherwise something is screwed up. */
|
|
|
2814 else
|
|
|
2815 abort ();
|
|
|
2816 }
|
|
|
2817 }
|
|
|
2818
|
|
|
2819 (reverse ? elt-- : elt++);
|
|
|
2820 }
|
|
|
2821
|
|
|
2822 return xpos;
|
|
|
2823 }
|
|
|
2824
|
|
|
2825 /* Add a blank to a margin display block. */
|
|
|
2826
|
|
|
2827 static void
|
|
|
2828 add_margin_blank (struct display_line *dl, struct display_block *db,
|
|
|
2829 struct window *w, int xpos, int width, int side)
|
|
|
2830 {
|
|
|
2831 struct rune rb;
|
|
|
2832
|
|
|
2833 rb.findex = (side == LEFT_GLYPHS
|
|
|
2834 ? get_builtin_face_cache_index (w, Vleft_margin_face)
|
|
|
2835 : get_builtin_face_cache_index (w, Vright_margin_face));
|
|
|
2836 rb.xpos = xpos;
|
|
|
2837 rb.width = width;
|
|
|
2838 rb.bufpos = -1;
|
|
|
2839 rb.endpos = 0;
|
|
|
2840 rb.type = RUNE_BLANK;
|
|
|
2841 rb.cursor_type = CURSOR_OFF;
|
|
|
2842
|
|
|
2843 Dynarr_add (db->runes, rb);
|
|
|
2844 }
|
|
|
2845
|
|
|
2846 /* Display glyphs in the left outside margin, left inside margin and
|
|
|
2847 left whitespace area. */
|
|
|
2848
|
|
|
2849 static void
|
|
|
2850 create_left_glyph_block (struct window *w, struct display_line *dl,
|
|
|
2851 int overlay_width)
|
|
|
2852 {
|
|
|
2853 Lisp_Object window;
|
|
|
2854
|
|
|
2855 int use_overflow = (NILP (w->use_left_overflow) ? 0 : 1);
|
|
|
2856 int elt, end_xpos;
|
|
|
2857 int out_end, in_out_start, in_in_end, white_out_start, white_in_start;
|
|
|
2858 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
2859 int left_in_start = dl->bounds.left_in;
|
|
|
2860 int left_in_end = dl->bounds.left_in + overlay_width;
|
|
|
2861
|
|
|
2862 struct display_block *odb, *idb;
|
|
|
2863
|
|
|
2864 XSETWINDOW (window, w);
|
|
|
2865
|
|
|
2866 /* We have to add the glyphs to the line in the order outside,
|
|
|
2867 inside, whitespace. However the precedence dictates that we
|
|
|
2868 determine how many will fit in the reverse order. */
|
|
|
2869
|
|
|
2870 /* Determine how many whitespace glyphs we can display and where
|
|
|
2871 they should start. */
|
|
|
2872 white_in_start = dl->bounds.left_white;
|
|
|
2873 white_out_start = left_in_start;
|
|
|
2874 white_out_cnt = white_in_cnt = 0;
|
|
|
2875 elt = 0;
|
|
|
2876
|
|
|
2877 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2878 {
|
|
|
2879 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2880
|
|
|
2881 if (NILP (gb->extent))
|
|
|
2882 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2883
|
|
|
2884 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
2885 {
|
|
|
2886 int width;
|
|
|
2887
|
|
438
|
2888 width = glyph_width (gb->glyph, window);
|
|
428
|
2889
|
|
|
2890 if (white_in_start - width >= left_in_end)
|
|
|
2891 {
|
|
|
2892 white_in_cnt++;
|
|
|
2893 white_in_start -= width;
|
|
|
2894 gb->width = width;
|
|
|
2895 gb->active = 1;
|
|
|
2896 }
|
|
|
2897 else if (use_overflow
|
|
|
2898 && (white_out_start - width > dl->bounds.left_out))
|
|
|
2899 {
|
|
|
2900 white_out_cnt++;
|
|
|
2901 white_out_start -= width;
|
|
|
2902 gb->width = width;
|
|
|
2903 gb->active = 1;
|
|
|
2904 }
|
|
|
2905 else
|
|
|
2906 gb->active = 0;
|
|
|
2907 }
|
|
|
2908
|
|
|
2909 elt++;
|
|
|
2910 }
|
|
|
2911
|
|
|
2912 /* Determine how many inside margin glyphs we can display and where
|
|
|
2913 they should start. The inside margin glyphs get whatever space
|
|
|
2914 is left after the whitespace glyphs have been displayed. These
|
|
|
2915 are tricky to calculate since if we decide to use the overflow
|
|
|
2916 area we basically have to start over. So for these we build up a
|
|
|
2917 list of just the inside margin glyphs and manipulate it to
|
|
|
2918 determine the needed info. */
|
|
|
2919 {
|
|
|
2920 glyph_block_dynarr *ib;
|
|
|
2921 int avail_in, avail_out;
|
|
|
2922 int done = 0;
|
|
|
2923 int marker = 0;
|
|
|
2924 int used_in, used_out;
|
|
|
2925
|
|
|
2926 elt = 0;
|
|
|
2927 used_in = used_out = 0;
|
|
|
2928 ib = Dynarr_new (glyph_block);
|
|
|
2929 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2930 {
|
|
|
2931 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
2932
|
|
|
2933 if (NILP (gb->extent))
|
|
|
2934 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
2935
|
|
|
2936 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
2937 GL_INSIDE_MARGIN)
|
|
|
2938 {
|
|
438
|
2939 gb->width = glyph_width (gb->glyph, window);
|
|
428
|
2940 used_in += gb->width;
|
|
|
2941 Dynarr_add (ib, *gb);
|
|
|
2942 }
|
|
|
2943
|
|
|
2944 elt++;
|
|
|
2945 }
|
|
|
2946
|
|
|
2947 if (white_out_cnt)
|
|
|
2948 avail_in = 0;
|
|
|
2949 else
|
|
|
2950 {
|
|
|
2951 avail_in = white_in_start - left_in_end;
|
|
|
2952 if (avail_in < 0)
|
|
|
2953 avail_in = 0;
|
|
|
2954 }
|
|
|
2955
|
|
|
2956 if (!use_overflow)
|
|
|
2957 avail_out = 0;
|
|
|
2958 else
|
|
|
2959 avail_out = white_out_start - dl->bounds.left_out;
|
|
|
2960
|
|
|
2961 marker = 0;
|
|
|
2962 while (!done && marker < Dynarr_length (ib))
|
|
|
2963 {
|
|
|
2964 int width = Dynarr_atp (ib, marker)->width;
|
|
|
2965
|
|
|
2966 /* If everything now fits in the available inside margin
|
|
|
2967 space, we're done. */
|
|
|
2968 if (used_in <= avail_in)
|
|
|
2969 done = 1;
|
|
|
2970 else
|
|
|
2971 {
|
|
|
2972 /* Otherwise see if we have room to move a glyph to the
|
|
|
2973 outside. */
|
|
|
2974 if (used_out + width <= avail_out)
|
|
|
2975 {
|
|
|
2976 used_out += width;
|
|
|
2977 used_in -= width;
|
|
|
2978 }
|
|
|
2979 else
|
|
|
2980 done = 1;
|
|
|
2981 }
|
|
|
2982
|
|
|
2983 if (!done)
|
|
|
2984 marker++;
|
|
|
2985 }
|
|
|
2986
|
|
|
2987 /* At this point we now know that everything from marker on goes in
|
|
|
2988 the inside margin and everything before it goes in the outside
|
|
|
2989 margin. The stuff going into the outside margin is guaranteed
|
|
|
2990 to fit, but we may have to trim some stuff from the inside. */
|
|
|
2991
|
|
|
2992 in_in_end = left_in_end;
|
|
|
2993 in_out_start = white_out_start;
|
|
|
2994 in_out_cnt = in_in_cnt = 0;
|
|
|
2995
|
|
|
2996 Dynarr_free (ib);
|
|
|
2997 elt = 0;
|
|
|
2998 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
2999 {
|
|
|
3000 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3001
|
|
|
3002 if (NILP (gb->extent))
|
|
|
3003 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3004
|
|
|
3005 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3006 GL_INSIDE_MARGIN)
|
|
|
3007 {
|
|
438
|
3008 int width = glyph_width (gb->glyph, window);
|
|
428
|
3009
|
|
|
3010 if (used_out)
|
|
|
3011 {
|
|
|
3012 in_out_cnt++;
|
|
|
3013 in_out_start -= width;
|
|
|
3014 gb->width = width;
|
|
|
3015 gb->active = 1;
|
|
|
3016 used_out -= width;
|
|
|
3017 }
|
|
|
3018 else if (in_in_end + width < white_in_start)
|
|
|
3019 {
|
|
|
3020 in_in_cnt++;
|
|
|
3021 in_in_end += width;
|
|
|
3022 gb->width = width;
|
|
|
3023 gb->active = 1;
|
|
|
3024 }
|
|
|
3025 else
|
|
|
3026 gb->active = 0;
|
|
|
3027 }
|
|
|
3028
|
|
|
3029 elt++;
|
|
|
3030 }
|
|
|
3031 }
|
|
|
3032
|
|
|
3033 /* Determine how many outside margin glyphs we can display. They
|
|
|
3034 always start at the left outside margin and can only use the
|
|
|
3035 outside margin space. */
|
|
|
3036 out_end = dl->bounds.left_out;
|
|
|
3037 out_cnt = 0;
|
|
|
3038 elt = 0;
|
|
|
3039
|
|
|
3040 while (elt < Dynarr_length (dl->left_glyphs))
|
|
|
3041 {
|
|
|
3042 struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
|
|
|
3043
|
|
|
3044 if (NILP (gb->extent))
|
|
|
3045 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3046
|
|
|
3047 if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
|
|
|
3048 GL_OUTSIDE_MARGIN)
|
|
|
3049 {
|
|
438
|
3050 int width = glyph_width (gb->glyph, window);
|
|
428
|
3051
|
|
|
3052 if (out_end + width <= in_out_start)
|
|
|
3053 {
|
|
|
3054 out_cnt++;
|
|
|
3055 out_end += width;
|
|
|
3056 gb->width = width;
|
|
|
3057 gb->active = 1;
|
|
|
3058 }
|
|
|
3059 else
|
|
|
3060 gb->active = 0;
|
|
|
3061 }
|
|
|
3062
|
|
|
3063 elt++;
|
|
|
3064 }
|
|
|
3065
|
|
|
3066 /* Now that we know where everything goes, we add the glyphs as
|
|
|
3067 runes to the appropriate display blocks. */
|
|
|
3068 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3069 {
|
|
|
3070 odb = get_display_block_from_line (dl, LEFT_OUTSIDE_MARGIN);
|
|
|
3071 odb->start_pos = dl->bounds.left_out;
|
|
|
3072 /* #### We should stop adding a blank to account for the space
|
|
|
3073 between the end of the glyphs and the margin and instead set
|
|
|
3074 this accordingly. */
|
|
|
3075 odb->end_pos = dl->bounds.left_in;
|
|
|
3076 Dynarr_reset (odb->runes);
|
|
|
3077 }
|
|
|
3078 else
|
|
|
3079 odb = 0;
|
|
|
3080
|
|
|
3081 if (in_in_cnt || white_in_cnt)
|
|
|
3082 {
|
|
|
3083 idb = get_display_block_from_line (dl, LEFT_INSIDE_MARGIN);
|
|
|
3084 idb->start_pos = dl->bounds.left_in;
|
|
|
3085 /* #### See above comment for odb->end_pos */
|
|
|
3086 idb->end_pos = dl->bounds.left_white;
|
|
|
3087 Dynarr_reset (idb->runes);
|
|
|
3088 }
|
|
|
3089 else
|
|
|
3090 idb = 0;
|
|
|
3091
|
|
|
3092 /* First add the outside margin glyphs. */
|
|
|
3093 if (out_cnt)
|
|
|
3094 end_xpos = add_margin_runes (dl, odb, dl->bounds.left_out, out_cnt,
|
|
|
3095 GL_OUTSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3096 else
|
|
|
3097 end_xpos = dl->bounds.left_out;
|
|
|
3098
|
|
|
3099 /* There may be blank space between the outside margin glyphs and
|
|
|
3100 the inside margin glyphs. If so, add a blank. */
|
|
|
3101 if (in_out_cnt && (in_out_start - end_xpos))
|
|
|
3102 {
|
|
|
3103 add_margin_blank (dl, odb, w, end_xpos, in_out_start - end_xpos,
|
|
|
3104 LEFT_GLYPHS);
|
|
|
3105 }
|
|
|
3106
|
|
|
3107 /* Next add the inside margin glyphs which are actually in the
|
|
|
3108 outside margin. */
|
|
|
3109 if (in_out_cnt)
|
|
|
3110 {
|
|
|
3111 end_xpos = add_margin_runes (dl, odb, in_out_start, in_out_cnt,
|
|
|
3112 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3113 }
|
|
|
3114
|
|
|
3115 /* If we didn't add any inside margin glyphs to the outside margin,
|
|
|
3116 but are adding whitespace glyphs, then we need to add a blank
|
|
|
3117 here. */
|
|
|
3118 if (!in_out_cnt && white_out_cnt && (white_out_start - end_xpos))
|
|
|
3119 {
|
|
|
3120 add_margin_blank (dl, odb, w, end_xpos, white_out_start - end_xpos,
|
|
|
3121 LEFT_GLYPHS);
|
|
|
3122 }
|
|
|
3123
|
|
|
3124 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3125 outside margin. */
|
|
|
3126 if (white_out_cnt)
|
|
|
3127 {
|
|
|
3128 end_xpos = add_margin_runes (dl, odb, white_out_start, white_out_cnt,
|
|
|
3129 GL_WHITESPACE, LEFT_GLYPHS, window);
|
|
|
3130 }
|
|
|
3131
|
|
|
3132 /* We take care of clearing between the end of the glyphs and the
|
|
|
3133 start of the inside margin for lines which have glyphs. */
|
|
|
3134 if (odb && (left_in_start - end_xpos))
|
|
|
3135 {
|
|
|
3136 add_margin_blank (dl, odb, w, end_xpos, left_in_start - end_xpos,
|
|
|
3137 LEFT_GLYPHS);
|
|
|
3138 }
|
|
|
3139
|
|
|
3140 /* Next add the inside margin glyphs which are actually in the
|
|
|
3141 inside margin. */
|
|
|
3142 if (in_in_cnt)
|
|
|
3143 {
|
|
|
3144 end_xpos = add_margin_runes (dl, idb, left_in_end, in_in_cnt,
|
|
|
3145 GL_INSIDE_MARGIN, LEFT_GLYPHS, window);
|
|
|
3146 }
|
|
|
3147 else
|
|
|
3148 end_xpos = left_in_end;
|
|
|
3149
|
|
|
3150 /* Make sure that the area between the end of the inside margin
|
|
|
3151 glyphs and the whitespace glyphs is cleared. */
|
|
|
3152 if (idb && (white_in_start - end_xpos > 0))
|
|
|
3153 {
|
|
|
3154 add_margin_blank (dl, idb, w, end_xpos, white_in_start - end_xpos,
|
|
|
3155 LEFT_GLYPHS);
|
|
|
3156 }
|
|
|
3157
|
|
|
3158 /* Next add the whitespace margin glyphs which are actually in the
|
|
|
3159 inside margin. */
|
|
|
3160 if (white_in_cnt)
|
|
|
3161 {
|
|
|
3162 add_margin_runes (dl, idb, white_in_start, white_in_cnt, GL_WHITESPACE,
|
|
|
3163 LEFT_GLYPHS, window);
|
|
|
3164 }
|
|
|
3165
|
|
|
3166 /* Whitespace glyphs always end right next to the text block so
|
|
|
3167 there is nothing we have to make sure is cleared after them. */
|
|
|
3168 }
|
|
|
3169
|
|
|
3170 /* Display glyphs in the right outside margin, right inside margin and
|
|
|
3171 right whitespace area. */
|
|
|
3172
|
|
|
3173 static void
|
|
|
3174 create_right_glyph_block (struct window *w, struct display_line *dl)
|
|
|
3175 {
|
|
|
3176 Lisp_Object window;
|
|
|
3177
|
|
|
3178 int use_overflow = (NILP (w->use_right_overflow) ? 0 : 1);
|
|
|
3179 int elt, end_xpos;
|
|
|
3180 int out_start, in_out_end, in_in_start, white_out_end, white_in_end;
|
|
|
3181 int out_cnt, in_out_cnt, in_in_cnt, white_out_cnt, white_in_cnt;
|
|
|
3182
|
|
|
3183 struct display_block *odb, *idb;
|
|
|
3184
|
|
|
3185 XSETWINDOW (window, w);
|
|
|
3186
|
|
|
3187 /* We have to add the glyphs to the line in the order outside,
|
|
|
3188 inside, whitespace. However the precedence dictates that we
|
|
|
3189 determine how many will fit in the reverse order. */
|
|
|
3190
|
|
|
3191 /* Determine how many whitespace glyphs we can display and where
|
|
|
3192 they should start. */
|
|
|
3193 white_in_end = dl->bounds.right_white;
|
|
|
3194 white_out_end = dl->bounds.right_in;
|
|
|
3195 white_out_cnt = white_in_cnt = 0;
|
|
|
3196 elt = 0;
|
|
|
3197
|
|
|
3198 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3199 {
|
|
|
3200 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3201
|
|
|
3202 if (NILP (gb->extent))
|
|
|
3203 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3204
|
|
|
3205 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
|
|
|
3206 {
|
|
438
|
3207 int width = glyph_width (gb->glyph, window);
|
|
428
|
3208
|
|
|
3209 if (white_in_end + width <= dl->bounds.right_in)
|
|
|
3210 {
|
|
|
3211 white_in_cnt++;
|
|
|
3212 white_in_end += width;
|
|
|
3213 gb->width = width;
|
|
|
3214 gb->active = 1;
|
|
|
3215 }
|
|
|
3216 else if (use_overflow
|
|
|
3217 && (white_out_end + width <= dl->bounds.right_out))
|
|
|
3218 {
|
|
|
3219 white_out_cnt++;
|
|
|
3220 white_out_end += width;
|
|
|
3221 gb->width = width;
|
|
|
3222 gb->active = 1;
|
|
|
3223 }
|
|
|
3224 else
|
|
|
3225 gb->active = 0;
|
|
|
3226 }
|
|
|
3227
|
|
|
3228 elt++;
|
|
|
3229 }
|
|
|
3230
|
|
|
3231 /* Determine how many inside margin glyphs we can display and where
|
|
|
3232 they should start. The inside margin glyphs get whatever space
|
|
|
3233 is left after the whitespace glyphs have been displayed. These
|
|
|
3234 are tricky to calculate since if we decide to use the overflow
|
|
|
3235 area we basically have to start over. So for these we build up a
|
|
|
3236 list of just the inside margin glyphs and manipulate it to
|
|
|
3237 determine the needed info. */
|
|
|
3238 {
|
|
|
3239 glyph_block_dynarr *ib;
|
|
|
3240 int avail_in, avail_out;
|
|
|
3241 int done = 0;
|
|
|
3242 int marker = 0;
|
|
|
3243 int used_in, used_out;
|
|
|
3244
|
|
|
3245 elt = 0;
|
|
|
3246 used_in = used_out = 0;
|
|
|
3247 ib = Dynarr_new (glyph_block);
|
|
|
3248 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3249 {
|
|
|
3250 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3251
|
|
|
3252 if (NILP (gb->extent))
|
|
|
3253 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3254
|
|
|
3255 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3256 {
|
|
438
|
3257 gb->width = glyph_width (gb->glyph, window);
|
|
428
|
3258 used_in += gb->width;
|
|
|
3259 Dynarr_add (ib, *gb);
|
|
|
3260 }
|
|
|
3261
|
|
|
3262 elt++;
|
|
|
3263 }
|
|
|
3264
|
|
|
3265 if (white_out_cnt)
|
|
|
3266 avail_in = 0;
|
|
|
3267 else
|
|
|
3268 avail_in = dl->bounds.right_in - white_in_end;
|
|
|
3269
|
|
|
3270 if (!use_overflow)
|
|
|
3271 avail_out = 0;
|
|
|
3272 else
|
|
|
3273 avail_out = dl->bounds.right_out - white_out_end;
|
|
|
3274
|
|
|
3275 marker = 0;
|
|
|
3276 while (!done && marker < Dynarr_length (ib))
|
|
|
3277 {
|
|
|
3278 int width = Dynarr_atp (ib, marker)->width;
|
|
|
3279
|
|
|
3280 /* If everything now fits in the available inside margin
|
|
|
3281 space, we're done. */
|
|
|
3282 if (used_in <= avail_in)
|
|
|
3283 done = 1;
|
|
|
3284 else
|
|
|
3285 {
|
|
|
3286 /* Otherwise see if we have room to move a glyph to the
|
|
|
3287 outside. */
|
|
|
3288 if (used_out + width <= avail_out)
|
|
|
3289 {
|
|
|
3290 used_out += width;
|
|
|
3291 used_in -= width;
|
|
|
3292 }
|
|
|
3293 else
|
|
|
3294 done = 1;
|
|
|
3295 }
|
|
|
3296
|
|
|
3297 if (!done)
|
|
|
3298 marker++;
|
|
|
3299 }
|
|
|
3300
|
|
|
3301 /* At this point we now know that everything from marker on goes in
|
|
|
3302 the inside margin and everything before it goes in the outside
|
|
|
3303 margin. The stuff going into the outside margin is guaranteed
|
|
|
3304 to fit, but we may have to trim some stuff from the inside. */
|
|
|
3305
|
|
|
3306 in_in_start = dl->bounds.right_in;
|
|
|
3307 in_out_end = dl->bounds.right_in;
|
|
|
3308 in_out_cnt = in_in_cnt = 0;
|
|
|
3309
|
|
|
3310 Dynarr_free (ib);
|
|
|
3311 elt = 0;
|
|
|
3312 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3313 {
|
|
|
3314 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3315
|
|
|
3316 if (NILP (gb->extent))
|
|
|
3317 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3318
|
|
|
3319 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
|
|
|
3320 {
|
|
438
|
3321 int width = glyph_width (gb->glyph, window);
|
|
428
|
3322
|
|
|
3323 if (used_out)
|
|
|
3324 {
|
|
|
3325 in_out_cnt++;
|
|
|
3326 in_out_end += width;
|
|
|
3327 gb->width = width;
|
|
|
3328 gb->active = 1;
|
|
|
3329 used_out -= width;
|
|
|
3330 }
|
|
|
3331 else if (in_in_start - width >= white_in_end)
|
|
|
3332 {
|
|
|
3333 in_in_cnt++;
|
|
|
3334 in_in_start -= width;
|
|
|
3335 gb->width = width;
|
|
|
3336 gb->active = 1;
|
|
|
3337 }
|
|
|
3338 else
|
|
|
3339 gb->active = 0;
|
|
|
3340 }
|
|
|
3341
|
|
|
3342 elt++;
|
|
|
3343 }
|
|
|
3344 }
|
|
|
3345
|
|
|
3346 /* Determine how many outside margin glyphs we can display. They
|
|
|
3347 always start at the right outside margin and can only use the
|
|
|
3348 outside margin space. */
|
|
|
3349 out_start = dl->bounds.right_out;
|
|
|
3350 out_cnt = 0;
|
|
|
3351 elt = 0;
|
|
|
3352
|
|
|
3353 while (elt < Dynarr_length (dl->right_glyphs))
|
|
|
3354 {
|
|
|
3355 struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
|
|
|
3356
|
|
|
3357 if (NILP (gb->extent))
|
|
|
3358 abort (); /* these should have been handled in add_glyph_rune */
|
|
|
3359
|
|
|
3360 if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_OUTSIDE_MARGIN)
|
|
|
3361 {
|
|
438
|
3362 int width = glyph_width (gb->glyph, window);
|
|
428
|
3363
|
|
|
3364 if (out_start - width >= in_out_end)
|
|
|
3365 {
|
|
|
3366 out_cnt++;
|
|
|
3367 out_start -= width;
|
|
|
3368 gb->width = width;
|
|
|
3369 gb->active = 1;
|
|
|
3370 }
|
|
|
3371 else
|
|
|
3372 gb->active = 0;
|
|
|
3373 }
|
|
|
3374
|
|
|
3375 elt++;
|
|
|
3376 }
|
|
|
3377
|
|
|
3378 /* Now that we now where everything goes, we add the glyphs as runes
|
|
|
3379 to the appropriate display blocks. */
|
|
|
3380 if (out_cnt || in_out_cnt || white_out_cnt)
|
|
|
3381 {
|
|
|
3382 odb = get_display_block_from_line (dl, RIGHT_OUTSIDE_MARGIN);
|
|
|
3383 /* #### See comments before odb->start_pos init in
|
|
|
3384 create_left_glyph_block */
|
|
|
3385 odb->start_pos = dl->bounds.right_in;
|
|
|
3386 odb->end_pos = dl->bounds.right_out;
|
|
|
3387 Dynarr_reset (odb->runes);
|
|
|
3388 }
|
|
|
3389 else
|
|
|
3390 odb = 0;
|
|
|
3391
|
|
|
3392 if (in_in_cnt || white_in_cnt)
|
|
|
3393 {
|
|
|
3394 idb = get_display_block_from_line (dl, RIGHT_INSIDE_MARGIN);
|
|
|
3395 idb->start_pos = dl->bounds.right_white;
|
|
|
3396 /* #### See comments before odb->start_pos init in
|
|
|
3397 create_left_glyph_block */
|
|
|
3398 idb->end_pos = dl->bounds.right_in;
|
|
|
3399 Dynarr_reset (idb->runes);
|
|
|
3400 }
|
|
|
3401 else
|
|
|
3402 idb = 0;
|
|
|
3403
|
|
|
3404 /* First add the whitespace margin glyphs which are actually in the
|
|
|
3405 inside margin. */
|
|
|
3406 if (white_in_cnt)
|
|
|
3407 {
|
|
|
3408 end_xpos = add_margin_runes (dl, idb, dl->bounds.right_white,
|
|
|
3409 white_in_cnt, GL_WHITESPACE, RIGHT_GLYPHS,
|
|
|
3410 window);
|
|
|
3411 }
|
|
|
3412 else
|
|
|
3413 end_xpos = dl->bounds.right_white;
|
|
|
3414
|
|
|
3415 /* Make sure that the area between the end of the whitespace glyphs
|
|
|
3416 and the inside margin glyphs is cleared. */
|
|
|
3417 if (in_in_cnt && (in_in_start - end_xpos))
|
|
|
3418 {
|
|
|
3419 add_margin_blank (dl, idb, w, end_xpos, in_in_start - end_xpos,
|
|
|
3420 RIGHT_GLYPHS);
|
|
|
3421 }
|
|
|
3422
|
|
|
3423 /* Next add the inside margin glyphs which are actually in the
|
|
|
3424 inside margin. */
|
|
|
3425 if (in_in_cnt)
|
|
|
3426 {
|
|
|
3427 end_xpos = add_margin_runes (dl, idb, in_in_start, in_in_cnt,
|
|
|
3428 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3429 }
|
|
|
3430
|
|
|
3431 /* If we didn't add any inside margin glyphs then make sure the rest
|
|
|
3432 of the inside margin area gets cleared. */
|
|
|
3433 if (idb && (dl->bounds.right_in - end_xpos))
|
|
|
3434 {
|
|
|
3435 add_margin_blank (dl, idb, w, end_xpos, dl->bounds.right_in - end_xpos,
|
|
|
3436 RIGHT_GLYPHS);
|
|
|
3437 }
|
|
|
3438
|
|
|
3439 /* Next add any whitespace glyphs in the outside margin. */
|
|
|
3440 if (white_out_cnt)
|
|
|
3441 {
|
|
|
3442 end_xpos = add_margin_runes (dl, odb, dl->bounds.right_in, white_out_cnt,
|
|
|
3443 GL_WHITESPACE, RIGHT_GLYPHS, window);
|
|
|
3444 }
|
|
|
3445 else
|
|
|
3446 end_xpos = dl->bounds.right_in;
|
|
|
3447
|
|
|
3448 /* Next add any inside margin glyphs in the outside margin. */
|
|
|
3449 if (in_out_cnt)
|
|
|
3450 {
|
|
|
3451 end_xpos = add_margin_runes (dl, odb, end_xpos, in_out_cnt,
|
|
|
3452 GL_INSIDE_MARGIN, RIGHT_GLYPHS, window);
|
|
|
3453 }
|
|
|
3454
|
|
|
3455 /* There may be space between any whitespace or inside margin glyphs
|
|
|
3456 in the outside margin and the actual outside margin glyphs. */
|
|
|
3457 if (odb && (out_start - end_xpos))
|
|
|
3458 {
|
|
|
3459 add_margin_blank (dl, odb, w, end_xpos, out_start - end_xpos,
|
|
|
3460 RIGHT_GLYPHS);
|
|
|
3461 }
|
|
|
3462
|
|
|
3463 /* Finally, add the outside margin glyphs. */
|
|
|
3464 if (out_cnt)
|
|
|
3465 {
|
|
|
3466 add_margin_runes (dl, odb, out_start, out_cnt, GL_OUTSIDE_MARGIN,
|
|
|
3467 RIGHT_GLYPHS, window);
|
|
|
3468 }
|
|
|
3469 }
|
|
|
3470
|
|
|
3471
|
|
|
3472 /***************************************************************************/
|
|
|
3473 /* */
|
|
|
3474 /* modeline routines */
|
|
|
3475 /* */
|
|
|
3476 /***************************************************************************/
|
|
|
3477
|
|
438
|
3478 /* This function is also used in frame.c by `generate_title_string' */
|
|
|
3479 void
|
|
|
3480 generate_formatted_string_db (Lisp_Object format_str, Lisp_Object result_str,
|
|
|
3481 struct window *w, struct display_line *dl,
|
|
|
3482 struct display_block *db, face_index findex,
|
|
|
3483 int min_pixpos, int max_pixpos, int type)
|
|
|
3484 {
|
|
|
3485 struct frame *f = XFRAME (w->frame);
|
|
|
3486 struct device *d = XDEVICE (f->device);
|
|
|
3487
|
|
|
3488 pos_data data;
|
|
|
3489 int c_pixpos;
|
|
|
3490 Charcount offset = 0;
|
|
|
3491
|
|
|
3492 xzero (data);
|
|
|
3493 data.d = d;
|
|
|
3494 data.db = db;
|
|
|
3495 data.dl = dl;
|
|
|
3496 data.findex = findex;
|
|
|
3497 data.pixpos = min_pixpos;
|
|
|
3498 data.max_pixpos = max_pixpos;
|
|
|
3499 data.cursor_type = NO_CURSOR;
|
|
|
3500 data.last_charset = Qunbound;
|
|
|
3501 data.last_findex = DEFAULT_INDEX;
|
|
|
3502 data.result_str = result_str;
|
|
|
3503 data.is_modeline = 1;
|
|
|
3504 data.string = Qnil;
|
|
|
3505 XSETWINDOW (data.window, w);
|
|
|
3506
|
|
|
3507 Dynarr_reset (formatted_string_extent_dynarr);
|
|
|
3508 Dynarr_reset (formatted_string_extent_start_dynarr);
|
|
|
3509 Dynarr_reset (formatted_string_extent_end_dynarr);
|
|
|
3510
|
|
|
3511 /* result_str is nil when we're building a frame or icon title. Otherwise,
|
|
|
3512 we're building a modeline, so the offset starts at the modeline
|
|
|
3513 horizontal scrolling ammount */
|
|
|
3514 if (! NILP (result_str))
|
|
|
3515 offset = w->modeline_hscroll;
|
|
|
3516 generate_fstring_runes (w, &data, 0, 0, -1, format_str, 0,
|
|
|
3517 max_pixpos - min_pixpos, findex, type, &offset,
|
|
|
3518 Qnil);
|
|
|
3519
|
|
|
3520 if (Dynarr_length (db->runes))
|
|
|
3521 {
|
|
|
3522 struct rune *rb =
|
|
|
3523 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
3524 c_pixpos = rb->xpos + rb->width;
|
|
|
3525 }
|
|
|
3526 else
|
|
|
3527 c_pixpos = min_pixpos;
|
|
|
3528
|
|
|
3529 /* If we don't reach the right side of the window, add a blank rune
|
|
|
3530 to make up the difference. This usually only occurs if the
|
|
|
3531 modeline face is using a proportional width font or a fixed width
|
|
|
3532 font of a different size from the default face font. */
|
|
|
3533
|
|
|
3534 if (c_pixpos < max_pixpos)
|
|
|
3535 {
|
|
|
3536 data.pixpos = c_pixpos;
|
|
|
3537 data.blank_width = max_pixpos - data.pixpos;
|
|
|
3538
|
|
|
3539 add_blank_rune (&data, NULL, 0);
|
|
|
3540 }
|
|
|
3541
|
|
|
3542 /* Now create the result string and frob the extents into it. */
|
|
|
3543 if (!NILP (result_str))
|
|
|
3544 {
|
|
|
3545 int elt;
|
|
|
3546 Bytecount len;
|
|
|
3547 Bufbyte *strdata;
|
|
|
3548 struct buffer *buf = XBUFFER (WINDOW_BUFFER (w));
|
|
|
3549
|
|
|
3550 detach_all_extents (result_str);
|
|
|
3551 resize_string (XSTRING (result_str), -1,
|
|
|
3552 data.bytepos - XSTRING_LENGTH (result_str));
|
|
|
3553
|
|
|
3554 strdata = XSTRING_DATA (result_str);
|
|
|
3555
|
|
|
3556 for (elt = 0, len = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
3557 {
|
|
|
3558 if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
|
|
|
3559 {
|
|
|
3560 len += (set_charptr_emchar
|
|
|
3561 (strdata + len, Dynarr_atp (db->runes,
|
|
|
3562 elt)->object.chr.ch));
|
|
|
3563 }
|
|
|
3564 }
|
|
|
3565
|
|
|
3566 for (elt = 0; elt < Dynarr_length (formatted_string_extent_dynarr);
|
|
|
3567 elt++)
|
|
|
3568 {
|
|
|
3569 Lisp_Object extent = Qnil;
|
|
|
3570 Lisp_Object child;
|
|
|
3571
|
|
|
3572 XSETEXTENT (extent, Dynarr_at (formatted_string_extent_dynarr, elt));
|
|
|
3573 child = Fgethash (extent, buf->modeline_extent_table, Qnil);
|
|
|
3574 if (NILP (child))
|
|
|
3575 {
|
|
|
3576 child = Fmake_extent (Qnil, Qnil, result_str);
|
|
|
3577 Fputhash (extent, child, buf->modeline_extent_table);
|
|
|
3578 }
|
|
|
3579 Fset_extent_parent (child, extent);
|
|
|
3580 set_extent_endpoints
|
|
|
3581 (XEXTENT (child),
|
|
|
3582 Dynarr_at (formatted_string_extent_start_dynarr, elt),
|
|
|
3583 Dynarr_at (formatted_string_extent_end_dynarr, elt),
|
|
|
3584 result_str);
|
|
|
3585 }
|
|
|
3586 }
|
|
|
3587 }
|
|
|
3588
|
|
428
|
3589 /* Ensure that the given display line DL accurately represents the
|
|
|
3590 modeline for the given window. */
|
|
|
3591 static void
|
|
|
3592 generate_modeline (struct window *w, struct display_line *dl, int type)
|
|
|
3593 {
|
|
|
3594 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3595 struct frame *f = XFRAME (w->frame);
|
|
|
3596 struct device *d = XDEVICE (f->device);
|
|
|
3597
|
|
|
3598 /* Unlike display line and rune pointers, this one can't change underneath
|
|
|
3599 our feet. */
|
|
|
3600 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
3601 int max_pixpos, min_pixpos, ypos_adj;
|
|
|
3602 Lisp_Object font_inst;
|
|
|
3603
|
|
|
3604 /* This will actually determine incorrect inside boundaries for the
|
|
|
3605 modeline since it ignores the margins. However being aware of this fact
|
|
|
3606 we never use those values anywhere so it doesn't matter. */
|
|
|
3607 dl->bounds = calculate_display_line_boundaries (w, 1);
|
|
|
3608
|
|
|
3609 /* We are generating a modeline. */
|
|
|
3610 dl->modeline = 1;
|
|
|
3611 dl->cursor_elt = -1;
|
|
|
3612
|
|
|
3613 /* Reset the runes on the modeline. */
|
|
|
3614 Dynarr_reset (db->runes);
|
|
|
3615
|
|
|
3616 if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
3617 {
|
|
|
3618 struct rune rb;
|
|
|
3619
|
|
|
3620 /* If there is a horizontal scrollbar, don't add anything. */
|
|
|
3621 if (window_scrollbar_height (w))
|
|
|
3622 return;
|
|
|
3623
|
|
|
3624 dl->ascent = DEVMETH (d, divider_height, ());
|
|
|
3625 dl->descent = 0;
|
|
|
3626 /* The modeline is at the bottom of the gutters. */
|
|
|
3627 dl->ypos = WINDOW_BOTTOM (w);
|
|
|
3628
|
|
|
3629 /* adjust for the bottom gutter */
|
|
|
3630 if (window_is_lowest (w))
|
|
|
3631 dl->ypos -= FRAME_BOTTOM_GUTTER_BOUNDS (f);
|
|
|
3632
|
|
|
3633 rb.findex = MODELINE_INDEX;
|
|
|
3634 rb.xpos = dl->bounds.left_out;
|
|
|
3635 rb.width = dl->bounds.right_out - dl->bounds.left_out;
|
|
|
3636 rb.bufpos = 0;
|
|
|
3637 rb.endpos = 0;
|
|
|
3638 rb.type = RUNE_HLINE;
|
|
|
3639 rb.object.hline.thickness = 1;
|
|
|
3640 rb.object.hline.yoffset = 0;
|
|
|
3641 rb.cursor_type = NO_CURSOR;
|
|
|
3642
|
|
|
3643 if (!EQ (Qzero, w->modeline_shadow_thickness)
|
|
|
3644 && FRAME_WIN_P (f))
|
|
|
3645 {
|
|
|
3646 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3647
|
|
|
3648 dl->ypos -= shadow_thickness;
|
|
|
3649 rb.xpos += shadow_thickness;
|
|
|
3650 rb.width -= 2 * shadow_thickness;
|
|
|
3651 }
|
|
|
3652
|
|
|
3653 Dynarr_add (db->runes, rb);
|
|
|
3654 return;
|
|
|
3655 }
|
|
|
3656
|
|
|
3657 /* !!#### not right; needs to compute the max height of
|
|
|
3658 all the charsets */
|
|
|
3659 font_inst = WINDOW_FACE_CACHEL_FONT (w, MODELINE_INDEX, Vcharset_ascii);
|
|
|
3660
|
|
|
3661 dl->ascent = XFONT_INSTANCE (font_inst)->ascent;
|
|
|
3662 dl->descent = XFONT_INSTANCE (font_inst)->descent;
|
|
|
3663
|
|
|
3664 min_pixpos = dl->bounds.left_out;
|
|
|
3665 max_pixpos = dl->bounds.right_out;
|
|
|
3666
|
|
|
3667 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
3668 {
|
|
|
3669 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
3670
|
|
|
3671 ypos_adj = shadow_thickness;
|
|
|
3672 min_pixpos += shadow_thickness;
|
|
|
3673 max_pixpos -= shadow_thickness;
|
|
|
3674 }
|
|
|
3675 else
|
|
|
3676 ypos_adj = 0;
|
|
|
3677
|
|
|
3678 generate_formatted_string_db (b->modeline_format,
|
|
|
3679 b->generated_modeline_string, w, dl, db,
|
|
|
3680 MODELINE_INDEX, min_pixpos, max_pixpos, type);
|
|
|
3681
|
|
|
3682 /* The modeline is at the bottom of the gutters. We have to wait to
|
|
|
3683 set this until we've generated the modeline in order to account
|
|
|
3684 for any embedded faces. */
|
|
|
3685 dl->ypos = WINDOW_BOTTOM (w) - dl->descent - ypos_adj;
|
|
|
3686 /* adjust for the bottom gutter */
|
|
|
3687 if (window_is_lowest (w))
|
|
|
3688 dl->ypos -= FRAME_BOTTOM_GUTTER_BOUNDS (f);
|
|
|
3689 }
|
|
|
3690
|
|
|
3691 static Charcount
|
|
|
3692 add_string_to_fstring_db_runes (pos_data *data, CONST Bufbyte *str,
|
|
|
3693 Charcount pos, Charcount min_pos, Charcount max_pos)
|
|
|
3694 {
|
|
|
3695 /* This function has been Mule-ized. */
|
|
|
3696 Charcount end;
|
|
|
3697 CONST Bufbyte *cur_pos = str;
|
|
|
3698 struct display_block *db = data->db;
|
|
|
3699
|
|
|
3700 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3701 while (Dynarr_length (db->runes) < pos)
|
|
|
3702 add_blank_rune (data, NULL, 0);
|
|
|
3703
|
|
|
3704 end = (Dynarr_length (db->runes) +
|
|
|
3705 bytecount_to_charcount (str, strlen ((CONST char *) str)));
|
|
|
3706 if (max_pos != -1)
|
|
|
3707 end = min (max_pos, end);
|
|
|
3708
|
|
|
3709 while (pos < end && *cur_pos)
|
|
|
3710 {
|
|
|
3711 CONST Bufbyte *old_cur_pos = cur_pos;
|
|
|
3712 int succeeded;
|
|
|
3713
|
|
|
3714 data->ch = charptr_emchar (cur_pos);
|
|
|
3715 succeeded = (add_emchar_rune (data) != ADD_FAILED);
|
|
|
3716 INC_CHARPTR (cur_pos);
|
|
|
3717 if (succeeded)
|
|
|
3718 {
|
|
|
3719 pos++;
|
|
|
3720 data->modeline_charpos++;
|
|
|
3721 data->bytepos += cur_pos - old_cur_pos;
|
|
|
3722 }
|
|
|
3723 }
|
|
|
3724
|
|
|
3725 while (Dynarr_length (db->runes) < min_pos &&
|
|
|
3726 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3727 add_blank_rune (data, NULL, 0);
|
|
|
3728
|
|
|
3729 return Dynarr_length (db->runes);
|
|
|
3730 }
|
|
|
3731
|
|
|
3732 /* #### Urk! Should also handle begin-glyphs and end-glyphs in
|
|
|
3733 modeline extents. */
|
|
|
3734 static Charcount
|
|
|
3735 add_glyph_to_fstring_db_runes (pos_data *data, Lisp_Object glyph,
|
|
438
|
3736 Charcount pos, Charcount min_pos,
|
|
|
3737 Charcount max_pos, Lisp_Object extent)
|
|
428
|
3738 {
|
|
|
3739 /* This function has been Mule-ized. */
|
|
|
3740 Charcount end;
|
|
|
3741 struct display_block *db = data->db;
|
|
|
3742 struct glyph_block gb;
|
|
|
3743
|
|
|
3744 data->blank_width = space_width (XWINDOW (data->window));
|
|
|
3745 while (Dynarr_length (db->runes) < pos)
|
|
|
3746 add_blank_rune (data, NULL, 0);
|
|
|
3747
|
|
|
3748 end = Dynarr_length (db->runes) + 1;
|
|
|
3749 if (max_pos != -1)
|
|
|
3750 end = min (max_pos, end);
|
|
|
3751
|
|
|
3752 gb.glyph = glyph;
|
|
438
|
3753 gb.extent = extent;
|
|
428
|
3754 add_glyph_rune (data, &gb, BEGIN_GLYPHS, 0, 0);
|
|
|
3755 pos++;
|
|
|
3756
|
|
|
3757 while (Dynarr_length (db->runes) < pos &&
|
|
|
3758 (data->pixpos + data->blank_width <= data->max_pixpos))
|
|
|
3759 add_blank_rune (data, NULL, 0);
|
|
|
3760
|
|
|
3761 return Dynarr_length (db->runes);
|
|
|
3762 }
|
|
|
3763
|
|
|
3764 /* If max_pos is == -1, it is considered to be infinite. The same is
|
|
|
3765 true of max_pixsize. */
|
|
|
3766 #define SET_CURRENT_MODE_CHARS_PIXSIZE \
|
|
|
3767 if (Dynarr_length (data->db->runes)) \
|
|
|
3768 cur_pixsize = data->pixpos - Dynarr_atp (data->db->runes, 0)->xpos; \
|
|
|
3769 else \
|
|
|
3770 cur_pixsize = 0;
|
|
|
3771
|
|
|
3772 /* Note that this function does "positions" in terms of characters and
|
|
|
3773 not in terms of columns. This is necessary to make the formatting
|
|
|
3774 work correctly when proportional width fonts are used in the
|
|
|
3775 modeline. */
|
|
|
3776 static Charcount
|
|
|
3777 generate_fstring_runes (struct window *w, pos_data *data, Charcount pos,
|
|
|
3778 Charcount min_pos, Charcount max_pos,
|
|
|
3779 Lisp_Object elt, int depth, int max_pixsize,
|
|
438
|
3780 face_index findex, int type, Charcount *offset,
|
|
|
3781 Lisp_Object cur_ext)
|
|
428
|
3782 {
|
|
|
3783 /* This function has been Mule-ized. */
|
|
|
3784 /* #### The other losing things in this function are:
|
|
|
3785
|
|
|
3786 -- C zero-terminated-string lossage.
|
|
|
3787 -- Non-printable characters should be converted into something
|
|
|
3788 appropriate (e.g. ^F) instead of blindly being printed anyway.
|
|
|
3789 */
|
|
|
3790
|
|
|
3791 tail_recurse:
|
|
|
3792 if (depth > 10)
|
|
|
3793 goto invalid;
|
|
|
3794
|
|
|
3795 depth++;
|
|
|
3796
|
|
|
3797 if (STRINGP (elt))
|
|
|
3798 {
|
|
|
3799 /* A string. Add to the display line and check for %-constructs
|
|
|
3800 within it. */
|
|
|
3801
|
|
|
3802 Bufbyte *this = XSTRING_DATA (elt);
|
|
|
3803
|
|
|
3804 while ((pos < max_pos || max_pos == -1) && *this)
|
|
|
3805 {
|
|
|
3806 Bufbyte *last = this;
|
|
|
3807
|
|
|
3808 while (*this && *this != '%')
|
|
|
3809 this++;
|
|
|
3810
|
|
|
3811 if (this != last)
|
|
|
3812 {
|
|
438
|
3813 /* No %-construct */
|
|
428
|
3814 Charcount size =
|
|
438
|
3815 bytecount_to_charcount (last, this - last);
|
|
|
3816
|
|
|
3817 if (size <= *offset)
|
|
|
3818 *offset -= size;
|
|
|
3819 else
|
|
|
3820 {
|
|
|
3821 Charcount tmp_max = (max_pos == -1 ? pos + size - *offset :
|
|
|
3822 min (pos + size - *offset, max_pos));
|
|
|
3823 CONST Bufbyte *tmp_last = charptr_n_addr (last, *offset);
|
|
|
3824
|
|
|
3825 pos = add_string_to_fstring_db_runes (data, tmp_last,
|
|
|
3826 pos, pos, tmp_max);
|
|
|
3827 *offset = 0;
|
|
|
3828 }
|
|
428
|
3829 }
|
|
|
3830 else /* *this == '%' */
|
|
|
3831 {
|
|
|
3832 Charcount spec_width = 0;
|
|
|
3833
|
|
|
3834 this++; /* skip over '%' */
|
|
|
3835
|
|
|
3836 /* We can't allow -ve args due to the "%-" construct.
|
|
|
3837 * Argument specifies minwidth but not maxwidth
|
|
|
3838 * (maxwidth can be specified by
|
|
|
3839 * (<negative-number> . <stuff>) modeline elements)
|
|
|
3840 */
|
|
|
3841 while (isdigit (*this))
|
|
|
3842 {
|
|
|
3843 spec_width = spec_width * 10 + (*this - '0');
|
|
|
3844 this++;
|
|
|
3845 }
|
|
|
3846 spec_width += pos;
|
|
|
3847
|
|
|
3848 if (*this == 'M')
|
|
|
3849 {
|
|
|
3850 pos = generate_fstring_runes (w, data, pos, spec_width,
|
|
|
3851 max_pos, Vglobal_mode_string,
|
|
|
3852 depth, max_pixsize, findex,
|
|
438
|
3853 type, offset, cur_ext);
|
|
428
|
3854 }
|
|
|
3855 else if (*this == '-')
|
|
|
3856 {
|
|
|
3857 Charcount num_to_add;
|
|
|
3858
|
|
|
3859 if (max_pixsize < 0)
|
|
|
3860 num_to_add = 0;
|
|
|
3861 else if (max_pos != -1)
|
|
|
3862 num_to_add = max_pos - pos;
|
|
|
3863 else
|
|
|
3864 {
|
|
|
3865 int cur_pixsize;
|
|
|
3866 int dash_pixsize;
|
|
|
3867 Bufbyte ch = '-';
|
|
|
3868 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3869
|
|
|
3870 dash_pixsize =
|
|
|
3871 redisplay_text_width_string (w, findex, &ch, Qnil, 0,
|
|
|
3872 1);
|
|
|
3873
|
|
|
3874 num_to_add = (max_pixsize - cur_pixsize) / dash_pixsize;
|
|
|
3875 num_to_add++;
|
|
|
3876 }
|
|
|
3877
|
|
|
3878 while (num_to_add--)
|
|
|
3879 pos = add_string_to_fstring_db_runes
|
|
|
3880 (data, (CONST Bufbyte *) "-", pos, pos, max_pos);
|
|
|
3881 }
|
|
|
3882 else if (*this != 0)
|
|
|
3883 {
|
|
438
|
3884 Emchar ch = charptr_emchar (this);
|
|
428
|
3885 Bufbyte *str;
|
|
438
|
3886 Charcount size;
|
|
|
3887
|
|
428
|
3888 decode_mode_spec (w, ch, type);
|
|
|
3889
|
|
|
3890 str = Dynarr_atp (mode_spec_bufbyte_string, 0);
|
|
438
|
3891 size = bytecount_to_charcount
|
|
|
3892 /* Skip the null character added by `decode_mode_spec' */
|
|
|
3893 (str, Dynarr_length (mode_spec_bufbyte_string)) - 1;
|
|
|
3894
|
|
|
3895 if (size <= *offset)
|
|
|
3896 *offset -= size;
|
|
|
3897 else
|
|
|
3898 {
|
|
|
3899 CONST Bufbyte *tmp_str = charptr_n_addr (str, *offset);
|
|
|
3900
|
|
440
|
3901 /* #### NOTE: I don't understand why a tmp_max is not
|
|
438
|
3902 computed and used here as in the plain string case
|
|
|
3903 above. -- dv */
|
|
|
3904 pos = add_string_to_fstring_db_runes (data, tmp_str,
|
|
|
3905 pos, pos,
|
|
|
3906 max_pos);
|
|
|
3907 *offset = 0;
|
|
|
3908 }
|
|
428
|
3909 }
|
|
|
3910
|
|
|
3911 /* NOT this++. There could be any sort of character at
|
|
|
3912 the current position. */
|
|
|
3913 INC_CHARPTR (this);
|
|
|
3914 }
|
|
|
3915
|
|
|
3916 if (max_pixsize > 0)
|
|
|
3917 {
|
|
|
3918 int cur_pixsize;
|
|
|
3919 SET_CURRENT_MODE_CHARS_PIXSIZE;
|
|
|
3920
|
|
|
3921 if (cur_pixsize >= max_pixsize)
|
|
|
3922 break;
|
|
|
3923 }
|
|
|
3924 }
|
|
|
3925 }
|
|
|
3926 else if (SYMBOLP (elt))
|
|
|
3927 {
|
|
|
3928 /* A symbol: process the value of the symbol recursively
|
|
|
3929 as if it appeared here directly. */
|
|
|
3930 Lisp_Object tem = symbol_value_in_buffer (elt, w->buffer);
|
|
|
3931
|
|
|
3932 if (!UNBOUNDP (tem))
|
|
|
3933 {
|
|
438
|
3934 /* If value is a string, output that string literally:
|
|
428
|
3935 don't check for % within it. */
|
|
|
3936 if (STRINGP (tem))
|
|
|
3937 {
|
|
438
|
3938 Bufbyte *str = XSTRING_DATA (tem);
|
|
|
3939 Charcount size = XSTRING_CHAR_LENGTH (tem);
|
|
|
3940
|
|
|
3941 if (size <= *offset)
|
|
|
3942 *offset -= size;
|
|
|
3943 else
|
|
|
3944 {
|
|
|
3945 CONST Bufbyte *tmp_str = charptr_n_addr (str, *offset);
|
|
|
3946
|
|
440
|
3947 /* #### NOTE: I don't understand why a tmp_max is not
|
|
438
|
3948 computed and used here as in the plain string case
|
|
|
3949 above. -- dv */
|
|
|
3950 pos = add_string_to_fstring_db_runes (data, tmp_str, pos,
|
|
|
3951 min_pos, max_pos);
|
|
|
3952 *offset = 0;
|
|
|
3953 }
|
|
428
|
3954 }
|
|
|
3955 /* Give up right away for nil or t. */
|
|
|
3956 else if (!EQ (tem, elt))
|
|
|
3957 {
|
|
|
3958 elt = tem;
|
|
|
3959 goto tail_recurse;
|
|
|
3960 }
|
|
|
3961 }
|
|
|
3962 }
|
|
|
3963 else if (GENERIC_SPECIFIERP (elt))
|
|
|
3964 {
|
|
|
3965 Lisp_Object window, tem;
|
|
|
3966 XSETWINDOW (window, w);
|
|
|
3967 tem = specifier_instance_no_quit (elt, Qunbound, window,
|
|
|
3968 ERROR_ME_NOT, 0, Qzero);
|
|
|
3969 if (!UNBOUNDP (tem))
|
|
|
3970 {
|
|
|
3971 elt = tem;
|
|
|
3972 goto tail_recurse;
|
|
|
3973 }
|
|
|
3974 }
|
|
|
3975 else if (CONSP (elt))
|
|
|
3976 {
|
|
|
3977 /* A cons cell: four distinct cases.
|
|
438
|
3978 * - If first element is a string or a cons, process all the elements
|
|
|
3979 * and effectively concatenate them.
|
|
|
3980 * - If first element is a negative number, truncate displaying cdr to
|
|
|
3981 * at most that many characters. If positive, pad (with spaces)
|
|
|
3982 * to at least that many characters.
|
|
|
3983 * - If first element is another symbol, process the cadr or caddr
|
|
|
3984 * recursively according to whether the symbol's value is non-nil or
|
|
|
3985 * nil.
|
|
|
3986 * - If first element is a face, process the cdr recursively
|
|
|
3987 * without altering the depth.
|
|
428
|
3988 */
|
|
438
|
3989
|
|
428
|
3990 Lisp_Object car, tem;
|
|
|
3991
|
|
|
3992 car = XCAR (elt);
|
|
|
3993 if (SYMBOLP (car))
|
|
438
|
3994 {
|
|
|
3995 elt = XCDR (elt);
|
|
|
3996 if (!CONSP (elt))
|
|
|
3997 goto invalid;
|
|
|
3998
|
|
|
3999 tem = symbol_value_in_buffer (car, w->buffer);
|
|
|
4000 /* elt is now the cdr, and we know it is a cons cell.
|
|
|
4001 Use its car if CAR has a non-nil value. */
|
|
|
4002 if (!UNBOUNDP (tem))
|
|
|
4003 {
|
|
|
4004 if (!NILP (tem))
|
|
|
4005 {
|
|
|
4006 elt = XCAR (elt);
|
|
|
4007 goto tail_recurse;
|
|
|
4008 }
|
|
|
4009 }
|
|
|
4010 /* Symbol's value is nil (or symbol is unbound)
|
|
|
4011 * Get the cddr of the original list
|
|
|
4012 * and if possible find the caddr and use that.
|
|
|
4013 */
|
|
|
4014 elt = XCDR (elt);
|
|
|
4015 if (NILP (elt))
|
|
|
4016 ;
|
|
|
4017 else if (!CONSP (elt))
|
|
|
4018 goto invalid;
|
|
|
4019 else
|
|
|
4020 {
|
|
|
4021 elt = XCAR (elt);
|
|
|
4022 goto tail_recurse;
|
|
|
4023 }
|
|
|
4024 }
|
|
428
|
4025 else if (INTP (car))
|
|
|
4026 {
|
|
|
4027 Charcount lim = XINT (car);
|
|
|
4028
|
|
|
4029 elt = XCDR (elt);
|
|
|
4030
|
|
|
4031 if (lim < 0)
|
|
|
4032 {
|
|
|
4033 /* Negative int means reduce maximum width.
|
|
|
4034 * DO NOT change MIN_PIXPOS here!
|
|
|
4035 * (20 -10 . foo) should truncate foo to 10 col
|
|
|
4036 * and then pad to 20.
|
|
|
4037 */
|
|
|
4038 if (max_pos == -1)
|
|
|
4039 max_pos = pos - lim;
|
|
|
4040 else
|
|
|
4041 max_pos = min (max_pos, pos - lim);
|
|
|
4042 }
|
|
|
4043 else if (lim > 0)
|
|
|
4044 {
|
|
|
4045 /* Padding specified. Don't let it be more than
|
|
|
4046 * current maximum.
|
|
|
4047 */
|
|
|
4048 lim += pos;
|
|
|
4049 if (max_pos != -1 && lim > max_pos)
|
|
|
4050 lim = max_pos;
|
|
|
4051 /* If that's more padding than already wanted, queue it.
|
|
|
4052 * But don't reduce padding already specified even if
|
|
|
4053 * that is beyond the current truncation point.
|
|
|
4054 */
|
|
|
4055 if (lim > min_pos)
|
|
|
4056 min_pos = lim;
|
|
|
4057 }
|
|
|
4058 goto tail_recurse;
|
|
|
4059 }
|
|
|
4060 else if (STRINGP (car) || CONSP (car))
|
|
|
4061 {
|
|
|
4062 int limit = 50;
|
|
438
|
4063
|
|
428
|
4064 /* LIMIT is to protect against circular lists. */
|
|
|
4065 while (CONSP (elt) && --limit > 0
|
|
|
4066 && (pos < max_pos || max_pos == -1))
|
|
|
4067 {
|
|
|
4068 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
438
|
4069 XCAR (elt), depth, max_pixsize,
|
|
|
4070 findex, type, offset, cur_ext);
|
|
428
|
4071 elt = XCDR (elt);
|
|
|
4072 }
|
|
|
4073 }
|
|
|
4074 else if (EXTENTP (car))
|
|
|
4075 {
|
|
|
4076 struct extent *ext = XEXTENT (car);
|
|
|
4077
|
|
|
4078 if (EXTENT_LIVE_P (ext))
|
|
|
4079 {
|
|
|
4080 face_index old_findex = data->findex;
|
|
|
4081 Lisp_Object face;
|
|
|
4082 Lisp_Object font_inst;
|
|
|
4083 face_index new_findex;
|
|
|
4084 Bytecount start = data->bytepos;
|
|
|
4085
|
|
|
4086 face = extent_face (ext);
|
|
|
4087 if (FACEP (face))
|
|
|
4088 {
|
|
|
4089 /* #### needs to merge faces, sigh */
|
|
|
4090 /* #### needs to handle list of faces */
|
|
|
4091 new_findex = get_builtin_face_cache_index (w, face);
|
|
|
4092 /* !!#### not right; needs to compute the max height of
|
|
|
4093 all the charsets */
|
|
|
4094 font_inst = WINDOW_FACE_CACHEL_FONT (w, new_findex,
|
|
|
4095 Vcharset_ascii);
|
|
|
4096
|
|
|
4097 data->dl->ascent = max (data->dl->ascent,
|
|
|
4098 XFONT_INSTANCE (font_inst)->ascent);
|
|
|
4099 data->dl->descent = max (data->dl->descent,
|
|
|
4100 XFONT_INSTANCE (font_inst)->
|
|
|
4101 descent);
|
|
|
4102 }
|
|
|
4103 else
|
|
|
4104 new_findex = old_findex;
|
|
|
4105
|
|
|
4106 data->findex = new_findex;
|
|
|
4107 pos = generate_fstring_runes (w, data, pos, pos, max_pos,
|
|
|
4108 XCDR (elt), depth - 1,
|
|
438
|
4109 max_pixsize, new_findex, type,
|
|
|
4110 offset, car);
|
|
428
|
4111 data->findex = old_findex;
|
|
|
4112 Dynarr_add (formatted_string_extent_dynarr, ext);
|
|
|
4113 Dynarr_add (formatted_string_extent_start_dynarr, start);
|
|
|
4114 Dynarr_add (formatted_string_extent_end_dynarr, data->bytepos);
|
|
|
4115 }
|
|
|
4116 }
|
|
|
4117 }
|
|
|
4118 else if (GLYPHP (elt))
|
|
|
4119 {
|
|
438
|
4120 /* Glyphs are considered as one character with respect to the modeline
|
|
|
4121 horizontal scrolling facility. -- dv */
|
|
|
4122 if (*offset > 0)
|
|
|
4123 *offset -= 1;
|
|
|
4124 else
|
|
|
4125 pos = add_glyph_to_fstring_db_runes (data, elt, pos, pos, max_pos,
|
|
|
4126 cur_ext);
|
|
428
|
4127 }
|
|
|
4128 else
|
|
|
4129 {
|
|
|
4130 invalid:
|
|
438
|
4131 {
|
|
|
4132 char *str = GETTEXT ("*invalid*");
|
|
|
4133 Charcount size = (Charcount) strlen (str); /* is this ok ?? -- dv */
|
|
|
4134
|
|
|
4135 if (size <= *offset)
|
|
|
4136 *offset -= size;
|
|
|
4137 else
|
|
|
4138 {
|
|
|
4139 CONST Bufbyte *tmp_str =
|
|
|
4140 charptr_n_addr ((CONST Bufbyte *) str, *offset);
|
|
|
4141
|
|
440
|
4142 /* #### NOTE: I don't understand why a tmp_max is not computed and
|
|
438
|
4143 used here as in the plain string case above. -- dv */
|
|
|
4144 pos = add_string_to_fstring_db_runes (data, tmp_str, pos,
|
|
|
4145 min_pos, max_pos);
|
|
|
4146 *offset = 0;
|
|
|
4147 }
|
|
|
4148 }
|
|
428
|
4149 }
|
|
|
4150
|
|
|
4151 if (min_pos > pos)
|
|
|
4152 {
|
|
438
|
4153 add_string_to_fstring_db_runes (data, (CONST Bufbyte *) "", pos,
|
|
|
4154 min_pos, -1);
|
|
428
|
4155 }
|
|
|
4156
|
|
|
4157 return pos;
|
|
|
4158 }
|
|
|
4159
|
|
|
4160 /* Update just the modeline. Assumes the desired display structs. If
|
|
|
4161 they do not have a modeline block, it does nothing. */
|
|
|
4162 static void
|
|
|
4163 regenerate_modeline (struct window *w)
|
|
|
4164 {
|
|
|
4165 display_line_dynarr *dla = window_display_lines (w, DESIRED_DISP);
|
|
|
4166
|
|
|
4167 if (!Dynarr_length (dla) || !Dynarr_atp (dla, 0)->modeline)
|
|
|
4168 return;
|
|
|
4169 else
|
|
|
4170 {
|
|
|
4171 generate_modeline (w, Dynarr_atp (dla, 0), DESIRED_DISP);
|
|
|
4172 redisplay_update_line (w, 0, 0, 0);
|
|
|
4173 }
|
|
|
4174 }
|
|
|
4175
|
|
|
4176 /* Make sure that modeline display line is present in the given
|
|
|
4177 display structs if the window has a modeline and update that
|
|
|
4178 line. Returns true if a modeline was needed. */
|
|
|
4179 static int
|
|
|
4180 ensure_modeline_generated (struct window *w, int type)
|
|
|
4181 {
|
|
|
4182 int need_modeline;
|
|
|
4183
|
|
|
4184 /* minibuffer windows don't have modelines */
|
|
|
4185 if (MINI_WINDOW_P (w))
|
|
|
4186 need_modeline = 0;
|
|
|
4187 /* windows which haven't had it turned off do */
|
|
|
4188 else if (WINDOW_HAS_MODELINE_P (w))
|
|
|
4189 need_modeline = 1;
|
|
|
4190 /* windows which have it turned off don't have a divider if there is
|
|
|
4191 a horizontal scrollbar */
|
|
|
4192 else if (window_scrollbar_height (w))
|
|
|
4193 need_modeline = 0;
|
|
|
4194 /* and in this case there is none */
|
|
|
4195 else
|
|
|
4196 need_modeline = 1;
|
|
|
4197
|
|
|
4198 if (need_modeline)
|
|
|
4199 {
|
|
|
4200 display_line_dynarr *dla;
|
|
|
4201
|
|
|
4202 dla = window_display_lines (w, type);
|
|
|
4203
|
|
|
4204 /* We don't care if there is a display line which is not
|
|
|
4205 currently a modeline because it is definitely going to become
|
|
|
4206 one if we have gotten to this point. */
|
|
|
4207 if (Dynarr_length (dla) == 0)
|
|
|
4208 {
|
|
|
4209 if (Dynarr_largest (dla) > 0)
|
|
|
4210 {
|
|
|
4211 struct display_line *mlp = Dynarr_atp (dla, 0);
|
|
|
4212 Dynarr_add (dla, *mlp);
|
|
|
4213 }
|
|
|
4214 else
|
|
|
4215 {
|
|
|
4216 struct display_line modeline;
|
|
|
4217 xzero (modeline);
|
|
|
4218 Dynarr_add (dla, modeline);
|
|
|
4219 }
|
|
|
4220 }
|
|
|
4221
|
|
|
4222 /* If we're adding a new place marker go ahead and generate the
|
|
|
4223 modeline so that it is available for use by
|
|
|
4224 window_modeline_height. */
|
|
|
4225 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
4226 }
|
|
|
4227
|
|
|
4228 return need_modeline;
|
|
|
4229 }
|
|
|
4230
|
|
|
4231 /* #### Kludge or not a kludge. I tend towards the former. */
|
|
|
4232 int
|
|
|
4233 real_current_modeline_height (struct window *w)
|
|
|
4234 {
|
|
|
4235 Fset_marker (w->start[CMOTION_DISP], w->start[CURRENT_DISP], w->buffer);
|
|
|
4236 Fset_marker (w->pointm[CMOTION_DISP], w->pointm[CURRENT_DISP], w->buffer);
|
|
|
4237
|
|
|
4238 if (ensure_modeline_generated (w, CMOTION_DISP))
|
|
|
4239 {
|
|
|
4240 display_line_dynarr *dla = window_display_lines (w, CMOTION_DISP);
|
|
|
4241
|
|
|
4242 if (Dynarr_length (dla))
|
|
|
4243 {
|
|
|
4244 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
4245 return (Dynarr_atp (dla, 0)->ascent +
|
|
|
4246 Dynarr_atp (dla, 0)->descent);
|
|
|
4247 }
|
|
|
4248 }
|
|
|
4249 return 0;
|
|
|
4250 }
|
|
|
4251
|
|
|
4252
|
|
|
4253 /***************************************************************************/
|
|
|
4254 /* */
|
|
|
4255 /* displayable string routines */
|
|
|
4256 /* */
|
|
|
4257 /***************************************************************************/
|
|
|
4258
|
|
|
4259 /* Given a position for a string in a window, ensure that the given
|
|
|
4260 display line DL accurately represents the text on a line starting
|
|
|
4261 at the given position.
|
|
|
4262
|
|
|
4263 Yes, this is duplicating the code of create_text_block, but it
|
|
|
4264 looked just too hard to change create_text_block to handle strings
|
|
|
4265 *and* buffers. We already make a distinction between the two
|
|
|
4266 elsewhere in the code so I think unifying them would require a
|
|
|
4267 complete MULE rewrite. Besides, the other distinction is that these
|
|
|
4268 functions cover text that the user *cannot edit* so we can remove
|
|
|
4269 everything to do with cursors, minibuffers etc. Eventually the
|
|
|
4270 modeline routines should be modified to use this code as it copes
|
|
|
4271 with many more types of display situation. */
|
|
|
4272
|
|
|
4273 static Bufpos
|
|
|
4274 create_string_text_block (struct window *w, Lisp_Object disp_string,
|
|
|
4275 struct display_line *dl,
|
|
|
4276 Bufpos start_pos,
|
|
|
4277 prop_block_dynarr **prop,
|
|
|
4278 face_index default_face)
|
|
|
4279 {
|
|
|
4280 struct frame *f = XFRAME (w->frame);
|
|
|
4281 /* Note that a lot of the buffer controlled stuff has been left in
|
|
|
4282 because you might well want to make use of it (selective display
|
|
|
4283 etc), its just the buffer text that we do not use. However, it
|
|
|
4284 seems to be possible for buffer to be nil sometimes so protect
|
|
|
4285 against this case. */
|
|
|
4286 struct buffer *b = BUFFERP (w->buffer) ? XBUFFER (w->buffer) : 0;
|
|
|
4287 struct device *d = XDEVICE (f->device);
|
|
440
|
4288 Lisp_String* s = XSTRING (disp_string);
|
|
428
|
4289
|
|
|
4290 /* we're working with these a lot so precalculate them */
|
|
|
4291 Bytecount slen = XSTRING_LENGTH (disp_string);
|
|
|
4292 Bytecount bi_string_zv = slen;
|
|
|
4293 Bytind bi_start_pos = charcount_to_bytecount (string_data (s), start_pos);
|
|
|
4294
|
|
|
4295 pos_data data;
|
|
|
4296
|
|
|
4297 int truncate_win = b ? window_truncation_on (w) : 0;
|
|
|
4298 int end_glyph_width = 0;
|
|
|
4299
|
|
|
4300 /* we're going to ditch selective display for static text, its an
|
|
|
4301 FSF thing and invisble extents are the way to go
|
|
|
4302 here. Implementing it also relies on a number of buffer-specific
|
|
|
4303 functions that we don't have the luxury of being able to use
|
|
|
4304 here. */
|
|
|
4305
|
|
|
4306 /* The variable ctl-arrow allows the user to specify what characters
|
|
|
4307 can actually be displayed and which octal should be used for.
|
|
|
4308 #### This variable should probably have some rethought done to
|
|
|
4309 it.
|
|
|
4310
|
|
|
4311 #### It would also be really nice if you could specify that
|
|
|
4312 the characters come out in hex instead of in octal. Mule
|
|
|
4313 does that by adding a ctl-hexa variable similar to ctl-arrow,
|
|
|
4314 but that's bogus -- we need a more general solution. I
|
|
|
4315 think you need to extend the concept of display tables
|
|
|
4316 into a more general conversion mechanism. Ideally you
|
|
|
4317 could specify a Lisp function that converts characters,
|
|
|
4318 but this violates the Second Golden Rule and besides would
|
|
|
4319 make things way way way way slow.
|
|
|
4320
|
|
|
4321 So instead, we extend the display-table concept, which was
|
|
|
4322 historically limited to 256-byte vectors, to one of the
|
|
|
4323 following:
|
|
|
4324
|
|
|
4325 a) A 256-entry vector, for backward compatibility;
|
|
|
4326 b) char-table, mapping characters to values;
|
|
|
4327 c) range-table, mapping ranges of characters to values;
|
|
|
4328 d) a list of the above.
|
|
|
4329
|
|
|
4330 The (d) option allows you to specify multiple display tables
|
|
|
4331 instead of just one. Each display table can specify conversions
|
|
|
4332 for some characters and leave others unchanged. The way the
|
|
|
4333 character gets displayed is determined by the first display table
|
|
|
4334 with a binding for that character. This way, you could call a
|
|
|
4335 function `enable-hex-display' that adds a hex display-table to
|
|
|
4336 the list of display tables for the current buffer.
|
|
|
4337
|
|
|
4338 #### ...not yet implemented... Also, we extend the concept of
|
|
|
4339 "mapping" to include a printf-like spec. Thus you can make all
|
|
|
4340 extended characters show up as hex with a display table like
|
|
|
4341 this:
|
|
|
4342
|
|
|
4343 #s(range-table data ((256 524288) (format "%x")))
|
|
|
4344
|
|
|
4345 Since more than one display table is possible, you have
|
|
|
4346 great flexibility in mapping ranges of characters. */
|
|
|
4347 Emchar printable_min = b ? (CHAR_OR_CHAR_INTP (b->ctl_arrow)
|
|
|
4348 ? XCHAR_OR_CHAR_INT (b->ctl_arrow)
|
|
|
4349 : ((EQ (b->ctl_arrow, Qt) || EQ (b->ctl_arrow, Qnil))
|
|
|
4350 ? 255 : 160)) : 255;
|
|
|
4351
|
|
|
4352 Lisp_Object face_dt, window_dt;
|
|
|
4353
|
|
|
4354 /* The text display block for this display line. */
|
|
|
4355 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
4356
|
|
|
4357 /* The first time through the main loop we need to force the glyph
|
|
|
4358 data to be updated. */
|
|
|
4359 int initial = 1;
|
|
|
4360
|
|
|
4361 /* Apparently the new extent_fragment_update returns an end position
|
|
|
4362 equal to the position passed in if there are no more runs to be
|
|
|
4363 displayed. */
|
|
|
4364 int no_more_frags = 0;
|
|
|
4365
|
|
|
4366 dl->used_prop_data = 0;
|
|
|
4367 dl->num_chars = 0;
|
|
|
4368
|
|
|
4369 /* set up faces to use for clearing areas, used by
|
|
|
4370 output_display_line */
|
|
|
4371 dl->default_findex = default_face;
|
|
|
4372 if (default_face)
|
|
|
4373 {
|
|
|
4374 dl->left_margin_findex = default_face;
|
|
|
4375 dl->right_margin_findex = default_face;
|
|
|
4376 }
|
|
|
4377 else
|
|
|
4378 {
|
|
434
|
4379 dl->left_margin_findex =
|
|
428
|
4380 get_builtin_face_cache_index (w, Vleft_margin_face);
|
|
434
|
4381 dl->right_margin_findex =
|
|
428
|
4382 get_builtin_face_cache_index (w, Vright_margin_face);
|
|
|
4383 }
|
|
|
4384
|
|
|
4385 xzero (data);
|
|
|
4386 data.ef = extent_fragment_new (disp_string, f);
|
|
|
4387
|
|
|
4388 /* These values are used by all of the rune addition routines. We add
|
|
|
4389 them to this structure for ease of passing. */
|
|
|
4390 data.d = d;
|
|
|
4391 XSETWINDOW (data.window, w);
|
|
|
4392 data.db = db;
|
|
|
4393 data.dl = dl;
|
|
|
4394
|
|
|
4395 data.bi_bufpos = bi_start_pos;
|
|
|
4396 data.pixpos = dl->bounds.left_in;
|
|
|
4397 data.last_charset = Qunbound;
|
|
|
4398 data.last_findex = default_face;
|
|
|
4399 data.result_str = Qnil;
|
|
|
4400 data.string = disp_string;
|
|
|
4401
|
|
|
4402 /* Set the right boundary adjusting it to take into account any end
|
|
|
4403 glyph. Save the width of the end glyph for later use. */
|
|
|
4404 data.max_pixpos = dl->bounds.right_in;
|
|
|
4405 #if 0
|
|
|
4406 if (truncate_win)
|
|
|
4407 end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
|
|
|
4408 else
|
|
|
4409 end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
|
|
|
4410 #endif
|
|
|
4411 data.max_pixpos -= end_glyph_width;
|
|
|
4412
|
|
|
4413 data.cursor_type = NO_CURSOR;
|
|
|
4414 data.cursor_x = -1;
|
|
|
4415
|
|
|
4416 data.start_col = 0;
|
|
|
4417 /* I don't think we want this, string areas should not scroll with
|
|
434
|
4418 the window
|
|
428
|
4419 data.start_col = w->hscroll;
|
|
|
4420 data.bi_start_col_enabled = (w->hscroll ? bi_start_pos : 0);
|
|
|
4421 */
|
|
|
4422 data.bi_start_col_enabled = 0;
|
|
|
4423 data.hscroll_glyph_width_adjust = 0;
|
|
|
4424
|
|
|
4425 /* We regenerate the line from the very beginning. */
|
|
|
4426 Dynarr_reset (db->runes);
|
|
|
4427
|
|
|
4428 /* Why is this less than or equal and not just less than? If the
|
|
|
4429 starting position is already equal to the maximum we can't add
|
|
|
4430 anything else, right? Wrong. We might still have a newline to
|
|
|
4431 add. A newline can use the room allocated for an end glyph since
|
|
|
4432 if we add it we know we aren't going to be adding any end
|
|
|
4433 glyph. */
|
|
|
4434
|
|
|
4435 /* #### Chuck -- I think this condition should be while (1).
|
|
|
4436 Otherwise if (e.g.) there is one begin-glyph and one end-glyph
|
|
|
4437 and the begin-glyph ends exactly at the end of the window, the
|
|
|
4438 end-glyph and text might not be displayed. while (1) ensures
|
|
|
4439 that the loop terminates only when either (a) there is
|
|
|
4440 propagation data or (b) the end-of-line or end-of-buffer is hit.
|
|
|
4441
|
|
|
4442 #### Also I think you need to ensure that the operation
|
|
|
4443 "add begin glyphs; add end glyphs; add text" is atomic and
|
|
|
4444 can't get interrupted in the middle. If you run off the end
|
|
|
4445 of the line during that operation, then you keep accumulating
|
|
|
4446 propagation data until you're done. Otherwise, if the (e.g.)
|
|
|
4447 there's a begin glyph at a particular position and attempting
|
|
|
4448 to display that glyph results in window-end being hit and
|
|
|
4449 propagation data being generated, then the character at that
|
|
|
4450 position won't be displayed.
|
|
|
4451
|
|
|
4452 #### See also the comment after the end of this loop, below.
|
|
|
4453 */
|
|
|
4454 while (data.pixpos <= data.max_pixpos)
|
|
|
4455 {
|
|
|
4456 /* #### This check probably should not be necessary. */
|
|
|
4457 if (data.bi_bufpos > bi_string_zv)
|
|
|
4458 {
|
|
|
4459 /* #### urk! More of this lossage! */
|
|
|
4460 data.bi_bufpos--;
|
|
|
4461 goto done;
|
|
|
4462 }
|
|
|
4463
|
|
|
4464 /* Check for face changes. */
|
|
|
4465 if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
|
|
|
4466 {
|
|
|
4467 /* Now compute the face and begin/end-glyph information. */
|
|
|
4468 data.findex =
|
|
|
4469 /* Remember that the extent-fragment routines deal in Bytind's. */
|
|
|
4470 extent_fragment_update (w, data.ef, data.bi_bufpos);
|
|
|
4471 /* This is somewhat cheesy but the alternative is to
|
|
|
4472 propagate default_face into extent_fragment_update. */
|
|
|
4473 if (data.findex == DEFAULT_INDEX)
|
|
|
4474 data.findex = default_face;
|
|
|
4475
|
|
|
4476 get_display_tables (w, data.findex, &face_dt, &window_dt);
|
|
|
4477
|
|
|
4478 if (data.bi_bufpos == data.ef->end)
|
|
|
4479 no_more_frags = 1;
|
|
|
4480 }
|
|
|
4481 initial = 0;
|
|
|
4482
|
|
|
4483 /* Determine what is next to be displayed. We first handle any
|
|
|
4484 glyphs returned by glyphs_at_bufpos. If there are no glyphs to
|
|
|
4485 display then we determine what to do based on the character at the
|
|
|
4486 current buffer position. */
|
|
|
4487
|
|
|
4488 /* If the current position is covered by an invisible extent, do
|
|
|
4489 nothing (except maybe add some ellipses).
|
|
|
4490
|
|
|
4491 #### The behavior of begin and end-glyphs at the edge of an
|
|
|
4492 invisible extent should be investigated further. This is
|
|
|
4493 fairly low priority though. */
|
|
|
4494 if (data.ef->invisible)
|
|
|
4495 {
|
|
|
4496 /* #### Chuck, perhaps you could look at this code? I don't
|
|
|
4497 really know what I'm doing. */
|
|
|
4498 if (*prop)
|
|
|
4499 {
|
|
|
4500 Dynarr_free (*prop);
|
|
|
4501 *prop = 0;
|
|
|
4502 }
|
|
|
4503
|
|
|
4504 /* The extent fragment code only sets this when we should
|
|
|
4505 really display the ellipses. It makes sure the ellipses
|
|
|
4506 don't get displayed more than once in a row. */
|
|
|
4507 if (data.ef->invisible_ellipses)
|
|
|
4508 {
|
|
|
4509 struct glyph_block gb;
|
|
|
4510
|
|
|
4511 data.ef->invisible_ellipses_already_displayed = 1;
|
|
|
4512 data.ef->invisible_ellipses = 0;
|
|
|
4513 gb.extent = Qnil;
|
|
|
4514 gb.glyph = Vinvisible_text_glyph;
|
|
|
4515 *prop = add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0,
|
|
|
4516 GLYPH_CACHEL (w, INVIS_GLYPH_INDEX));
|
|
|
4517 /* Perhaps they shouldn't propagate if the very next thing
|
|
|
4518 is to display a newline (for compatibility with
|
|
|
4519 selective-display-ellipses)? Maybe that's too
|
|
|
4520 abstruse. */
|
|
|
4521 if (*prop)
|
|
|
4522 goto done;
|
|
|
4523 }
|
|
|
4524
|
|
|
4525 /* #### What if we we're dealing with a display table? */
|
|
|
4526 if (data.start_col)
|
|
|
4527 data.start_col--;
|
|
|
4528
|
|
|
4529 if (data.bi_bufpos == bi_string_zv)
|
|
|
4530 goto done;
|
|
|
4531 else
|
|
|
4532 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4533 }
|
|
|
4534
|
|
|
4535 /* If there is propagation data, then it represents the current
|
|
|
4536 buffer position being displayed. Add them and advance the
|
|
|
4537 position counter. This might also add the minibuffer
|
|
|
4538 prompt. */
|
|
|
4539 else if (*prop)
|
|
|
4540 {
|
|
|
4541 dl->used_prop_data = 1;
|
|
|
4542 *prop = add_propagation_runes (prop, &data);
|
|
|
4543
|
|
|
4544 if (*prop)
|
|
|
4545 goto done; /* gee, a really narrow window */
|
|
|
4546 else if (data.bi_bufpos == bi_string_zv)
|
|
|
4547 goto done;
|
|
|
4548 else if (data.bi_bufpos < 0)
|
|
|
4549 /* #### urk urk urk! Aborts are not very fun! Fix this please! */
|
|
|
4550 data.bi_bufpos = 0;
|
|
|
4551 else
|
|
|
4552 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4553 }
|
|
|
4554
|
|
|
4555 /* If there are end glyphs, add them to the line. These are
|
|
|
4556 the end glyphs for the previous run of text. We add them
|
|
|
4557 here rather than doing them at the end of handling the
|
|
|
4558 previous run so that glyphs at the beginning and end of
|
|
|
4559 a line are handled correctly. */
|
|
|
4560 else if (Dynarr_length (data.ef->end_glyphs) > 0)
|
|
|
4561 {
|
|
|
4562 *prop = add_glyph_runes (&data, END_GLYPHS);
|
|
|
4563 if (*prop)
|
|
|
4564 goto done;
|
|
|
4565 }
|
|
|
4566
|
|
|
4567 /* If there are begin glyphs, add them to the line. */
|
|
|
4568 else if (Dynarr_length (data.ef->begin_glyphs) > 0)
|
|
|
4569 {
|
|
|
4570 *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
|
|
|
4571 if (*prop)
|
|
|
4572 goto done;
|
|
|
4573 }
|
|
|
4574
|
|
|
4575 /* If at end-of-buffer, we've already processed begin and
|
|
|
4576 end-glyphs at this point and there's no text to process,
|
|
|
4577 so we're done. */
|
|
|
4578 else if (data.bi_bufpos == bi_string_zv)
|
|
|
4579 goto done;
|
|
|
4580
|
|
|
4581 else
|
|
|
4582 {
|
|
|
4583 Lisp_Object entry = Qnil;
|
|
|
4584 /* Get the character at the current buffer position. */
|
|
|
4585 data.ch = string_char (s, data.bi_bufpos);
|
|
|
4586 if (!NILP (face_dt) || !NILP (window_dt))
|
|
|
4587 entry = display_table_entry (data.ch, face_dt, window_dt);
|
|
|
4588
|
|
|
4589 /* If there is a display table entry for it, hand it off to
|
|
|
4590 add_disp_table_entry_runes and let it worry about it. */
|
|
|
4591 if (!NILP (entry) && !EQ (entry, make_char (data.ch)))
|
|
|
4592 {
|
|
|
4593 *prop = add_disp_table_entry_runes (&data, entry);
|
|
|
4594
|
|
|
4595 if (*prop)
|
|
|
4596 goto done;
|
|
|
4597 }
|
|
|
4598
|
|
|
4599 /* Check if we have hit a newline character. If so, add a marker
|
|
|
4600 to the line and end this loop. */
|
|
|
4601 else if (data.ch == '\n')
|
|
|
4602 {
|
|
|
4603 /* We aren't going to be adding an end glyph so give its
|
|
|
4604 space back in order to make sure that the cursor can
|
|
|
4605 fit. */
|
|
|
4606 data.max_pixpos += end_glyph_width;
|
|
|
4607 goto done;
|
|
|
4608 }
|
|
|
4609
|
|
|
4610 /* If the current character is considered to be printable, then
|
|
|
4611 just add it. */
|
|
|
4612 else if (data.ch >= printable_min)
|
|
|
4613 {
|
|
|
4614 *prop = add_emchar_rune (&data);
|
|
|
4615 if (*prop)
|
|
|
4616 goto done;
|
|
|
4617 }
|
|
|
4618
|
|
|
4619 /* If the current character is a tab, determine the next tab
|
|
|
4620 starting position and add a blank rune which extends from the
|
|
|
4621 current pixel position to that starting position. */
|
|
|
4622 else if (data.ch == '\t')
|
|
|
4623 {
|
|
|
4624 int tab_start_pixpos = data.pixpos;
|
|
|
4625 int next_tab_start;
|
|
|
4626 int char_tab_width;
|
|
|
4627 int prop_width = 0;
|
|
|
4628
|
|
|
4629 if (data.start_col > 1)
|
|
|
4630 tab_start_pixpos -= (space_width (w) * (data.start_col - 1));
|
|
|
4631
|
|
|
4632 next_tab_start =
|
|
|
4633 next_tab_position (w, tab_start_pixpos,
|
|
|
4634 dl->bounds.left_in +
|
|
|
4635 data.hscroll_glyph_width_adjust);
|
|
|
4636 if (next_tab_start > data.max_pixpos)
|
|
|
4637 {
|
|
|
4638 prop_width = next_tab_start - data.max_pixpos;
|
|
|
4639 next_tab_start = data.max_pixpos;
|
|
|
4640 }
|
|
|
4641 data.blank_width = next_tab_start - data.pixpos;
|
|
|
4642 char_tab_width =
|
|
|
4643 (next_tab_start - tab_start_pixpos) / space_width (w);
|
|
|
4644
|
|
|
4645 *prop = add_blank_rune (&data, w, char_tab_width);
|
|
|
4646
|
|
|
4647 /* add_blank_rune is only supposed to be called with
|
|
|
4648 sizes guaranteed to fit in the available space. */
|
|
|
4649 assert (!(*prop));
|
|
|
4650
|
|
|
4651 if (prop_width)
|
|
|
4652 {
|
|
|
4653 struct prop_block pb;
|
|
|
4654 *prop = Dynarr_new (prop_block);
|
|
|
4655
|
|
|
4656 pb.type = PROP_BLANK;
|
|
|
4657 pb.data.p_blank.width = prop_width;
|
|
|
4658 pb.data.p_blank.findex = data.findex;
|
|
|
4659 Dynarr_add (*prop, pb);
|
|
|
4660
|
|
|
4661 goto done;
|
|
|
4662 }
|
|
|
4663 }
|
|
|
4664
|
|
|
4665 /* If character is a control character, pass it off to
|
|
|
4666 add_control_char_runes.
|
|
|
4667
|
|
|
4668 The is_*() routines have undefined results on
|
|
|
4669 arguments outside of the range [-1, 255]. (This
|
|
|
4670 often bites people who carelessly use `char' instead
|
|
|
4671 of `unsigned char'.)
|
|
|
4672 */
|
|
|
4673 else if (data.ch < 0x100 && iscntrl ((Bufbyte) data.ch))
|
|
|
4674 {
|
|
|
4675 *prop = add_control_char_runes (&data, b);
|
|
|
4676
|
|
|
4677 if (*prop)
|
|
|
4678 goto done;
|
|
|
4679 }
|
|
|
4680
|
|
|
4681 /* If the character is above the ASCII range and we have not
|
|
|
4682 already handled it, then print it as an octal number. */
|
|
|
4683 else if (data.ch >= 0200)
|
|
|
4684 {
|
|
|
4685 *prop = add_octal_runes (&data);
|
|
|
4686
|
|
|
4687 if (*prop)
|
|
|
4688 goto done;
|
|
|
4689 }
|
|
|
4690
|
|
|
4691 /* Assume the current character is considered to be printable,
|
|
|
4692 then just add it. */
|
|
|
4693 else
|
|
|
4694 {
|
|
|
4695 *prop = add_emchar_rune (&data);
|
|
|
4696 if (*prop)
|
|
|
4697 goto done;
|
|
|
4698 }
|
|
|
4699
|
|
|
4700 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4701 }
|
|
|
4702 }
|
|
|
4703
|
|
|
4704 done:
|
|
|
4705
|
|
|
4706 /* Determine the starting point of the next line if we did not hit the
|
|
|
4707 end of the buffer. */
|
|
|
4708 if (data.bi_bufpos < bi_string_zv)
|
|
|
4709 {
|
|
|
4710 /* #### This check is not correct. If the line terminated
|
|
|
4711 due to a begin-glyph or end-glyph hitting window-end, then
|
|
|
4712 data.ch will not point to the character at data.bi_bufpos. If
|
|
|
4713 you make the two changes mentioned at the top of this loop,
|
|
|
4714 you should be able to say '(if (*prop))'. That should also
|
|
|
4715 make it possible to eliminate the data.bi_bufpos < BI_BUF_ZV (b)
|
|
|
4716 check. */
|
|
|
4717
|
|
|
4718 /* The common case is that the line ended because we hit a newline.
|
|
|
4719 In that case, the next character is just the next buffer
|
|
|
4720 position. */
|
|
|
4721 if (data.ch == '\n')
|
|
|
4722 {
|
|
|
4723 INC_CHARBYTIND (string_data (s), data.bi_bufpos);
|
|
|
4724 }
|
|
|
4725
|
|
|
4726 /* Otherwise we have a buffer line which cannot fit on one display
|
|
|
4727 line. */
|
|
|
4728 else
|
|
|
4729 {
|
|
|
4730 struct glyph_block gb;
|
|
|
4731 struct glyph_cachel *cachel;
|
|
|
4732
|
|
|
4733 /* If the line is to be truncated then we actually have to look
|
|
|
4734 for the next newline. We also add the end-of-line glyph which
|
|
|
4735 we know will fit because we adjusted the right border before
|
|
|
4736 we starting laying out the line. */
|
|
|
4737 data.max_pixpos += end_glyph_width;
|
|
|
4738 data.findex = default_face;
|
|
|
4739 gb.extent = Qnil;
|
|
|
4740
|
|
|
4741 if (truncate_win)
|
|
|
4742 {
|
|
|
4743 Bytind bi_pos;
|
|
|
4744
|
|
|
4745 /* Now find the start of the next line. */
|
|
|
4746 bi_pos = bi_find_next_emchar_in_string (s, '\n', data.bi_bufpos, 1);
|
|
|
4747
|
|
|
4748 data.cursor_type = NO_CURSOR;
|
|
|
4749 data.bi_bufpos = bi_pos;
|
|
|
4750 gb.glyph = Vtruncation_glyph;
|
|
|
4751 cachel = GLYPH_CACHEL (w, TRUN_GLYPH_INDEX);
|
|
|
4752 }
|
|
|
4753 else
|
|
|
4754 {
|
|
|
4755 /* The cursor can never be on the continuation glyph. */
|
|
|
4756 data.cursor_type = NO_CURSOR;
|
|
|
4757
|
|
|
4758 /* data.bi_bufpos is already at the start of the next line. */
|
|
|
4759
|
|
|
4760 gb.glyph = Vcontinuation_glyph;
|
|
|
4761 cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
|
|
|
4762 }
|
|
|
4763
|
|
|
4764 if (end_glyph_width)
|
|
|
4765 add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, cachel);
|
|
|
4766
|
|
|
4767 if (truncate_win && data.bi_bufpos == bi_string_zv)
|
|
|
4768 {
|
|
|
4769 CONST Bufbyte* endb = charptr_n_addr (string_data (s), bi_string_zv);
|
|
|
4770 DEC_CHARPTR (endb);
|
|
|
4771 if (charptr_emchar (endb) != '\n')
|
|
|
4772 {
|
|
|
4773 /* #### Damn this losing shit. */
|
|
|
4774 data.bi_bufpos++;
|
|
|
4775 }
|
|
|
4776 }
|
|
|
4777 }
|
|
|
4778 }
|
|
|
4779 else if (data.bi_bufpos == bi_string_zv)
|
|
|
4780 {
|
|
|
4781 /* create_text_block () adds a bogus \n marker here which screws
|
|
|
4782 up subwindow display. Since we never have a cursor in the
|
|
|
4783 gutter we can safely ignore it. */
|
|
|
4784 }
|
|
|
4785 /* Calculate left whitespace boundary. */
|
|
|
4786 {
|
|
|
4787 int elt = 0;
|
|
|
4788
|
|
|
4789 /* Whitespace past a newline is considered right whitespace. */
|
|
|
4790 while (elt < Dynarr_length (db->runes))
|
|
|
4791 {
|
|
|
4792 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
4793
|
|
|
4794 if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
|
|
|
4795 || rb->type == RUNE_BLANK)
|
|
|
4796 {
|
|
|
4797 dl->bounds.left_white += rb->width;
|
|
|
4798 elt++;
|
|
|
4799 }
|
|
|
4800 else
|
|
|
4801 elt = Dynarr_length (db->runes);
|
|
|
4802 }
|
|
|
4803 }
|
|
|
4804
|
|
|
4805 /* Calculate right whitespace boundary. */
|
|
|
4806 {
|
|
|
4807 int elt = Dynarr_length (db->runes) - 1;
|
|
|
4808 int done = 0;
|
|
|
4809
|
|
|
4810 while (!done && elt >= 0)
|
|
|
4811 {
|
|
|
4812 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
4813
|
|
|
4814 if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
|
|
|
4815 && isspace (rb->object.chr.ch))
|
|
|
4816 && !rb->type == RUNE_BLANK)
|
|
|
4817 {
|
|
|
4818 dl->bounds.right_white = rb->xpos + rb->width;
|
|
|
4819 done = 1;
|
|
|
4820 }
|
|
|
4821
|
|
|
4822 elt--;
|
|
|
4823
|
|
|
4824 }
|
|
|
4825
|
|
|
4826 /* The line is blank so everything is considered to be right
|
|
|
4827 whitespace. */
|
|
|
4828 if (!done)
|
|
|
4829 dl->bounds.right_white = dl->bounds.left_in;
|
|
|
4830 }
|
|
|
4831
|
|
|
4832 /* Set the display blocks bounds. */
|
|
|
4833 db->start_pos = dl->bounds.left_in;
|
|
|
4834 if (Dynarr_length (db->runes))
|
|
|
4835 {
|
|
|
4836 struct rune *rb = Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
4837
|
|
|
4838 db->end_pos = rb->xpos + rb->width;
|
|
|
4839 }
|
|
|
4840 else
|
|
|
4841 db->end_pos = dl->bounds.right_white;
|
|
|
4842
|
|
|
4843 /* update line height parameters */
|
|
|
4844 if (!data.new_ascent && !data.new_descent)
|
|
|
4845 {
|
|
|
4846 /* We've got a blank line so initialize these values from the default
|
|
|
4847 face. */
|
|
|
4848 default_face_font_info (data.window, &data.new_ascent,
|
|
|
4849 &data.new_descent, 0, 0, 0);
|
|
|
4850 }
|
|
|
4851
|
|
|
4852 if (data.max_pixmap_height)
|
|
|
4853 {
|
|
|
4854 int height = data.new_ascent + data.new_descent;
|
|
|
4855 int pix_ascent, pix_descent;
|
|
|
4856
|
|
|
4857 pix_descent = data.max_pixmap_height * data.new_descent / height;
|
|
|
4858 pix_ascent = data.max_pixmap_height - pix_descent;
|
|
|
4859
|
|
|
4860 data.new_ascent = max (data.new_ascent, pix_ascent);
|
|
|
4861 data.new_descent = max (data.new_descent, pix_descent);
|
|
|
4862 }
|
|
|
4863
|
|
|
4864 dl->ascent = data.new_ascent;
|
|
|
4865 dl->descent = data.new_descent;
|
|
|
4866
|
|
|
4867 {
|
|
|
4868 unsigned short ascent = (unsigned short) XINT (w->minimum_line_ascent);
|
|
|
4869
|
|
|
4870 if (dl->ascent < ascent)
|
|
|
4871 dl->ascent = ascent;
|
|
|
4872 }
|
|
|
4873 {
|
|
|
4874 unsigned short descent = (unsigned short) XINT (w->minimum_line_descent);
|
|
|
4875
|
|
|
4876 if (dl->descent < descent)
|
|
|
4877 dl->descent = descent;
|
|
|
4878 }
|
|
|
4879
|
|
|
4880 dl->cursor_elt = data.cursor_x;
|
|
|
4881 /* #### lossage lossage lossage! Fix this shit! */
|
|
|
4882 if (data.bi_bufpos > bi_string_zv)
|
|
|
4883 dl->end_bufpos = buffer_or_string_bytind_to_bufpos (disp_string, bi_string_zv);
|
|
|
4884 else
|
|
|
4885 dl->end_bufpos = buffer_or_string_bytind_to_bufpos (disp_string, data.bi_bufpos) - 1;
|
|
|
4886 if (truncate_win)
|
|
434
|
4887 data.dl->num_chars =
|
|
428
|
4888 string_column_at_point (s, dl->end_bufpos, b ? XINT (b->tab_width) : 8);
|
|
|
4889 else
|
|
|
4890 /* This doesn't correctly take into account tabs and control
|
|
|
4891 characters but if the window isn't being truncated then this
|
|
|
4892 value isn't going to end up being used anyhow. */
|
|
|
4893 data.dl->num_chars = dl->end_bufpos - dl->bufpos;
|
|
|
4894
|
|
|
4895 /* #### handle horizontally scrolled line with text none of which
|
|
|
4896 was actually laid out. */
|
|
|
4897
|
|
|
4898 /* #### handle any remainder of overlay arrow */
|
|
|
4899
|
|
|
4900 if (*prop == ADD_FAILED)
|
|
|
4901 *prop = NULL;
|
|
|
4902
|
|
|
4903 if (truncate_win && *prop)
|
|
|
4904 {
|
|
|
4905 Dynarr_free (*prop);
|
|
|
4906 *prop = NULL;
|
|
|
4907 }
|
|
|
4908
|
|
|
4909 extent_fragment_delete (data.ef);
|
|
|
4910
|
|
|
4911 /* #### If we started at EOB, then make sure we return a value past
|
|
|
4912 it so that regenerate_window will exit properly. This is bogus.
|
|
|
4913 The main loop should get fixed so that it isn't necessary to call
|
|
|
4914 this function if we are already at EOB. */
|
|
|
4915
|
|
|
4916 if (data.bi_bufpos == bi_string_zv && bi_start_pos == bi_string_zv)
|
|
|
4917 return bytecount_to_charcount (string_data (s), data.bi_bufpos) + 1; /* Yuck! */
|
|
|
4918 else
|
|
|
4919 return bytecount_to_charcount (string_data (s), data.bi_bufpos);
|
|
|
4920 }
|
|
|
4921
|
|
|
4922 /* Given a display line and a starting position, ensure that the
|
|
|
4923 contents of the display line accurately represent the visual
|
|
|
4924 representation of the buffer contents starting from the given
|
|
|
4925 position when displayed in the given window. The display line ends
|
|
|
4926 when the contents of the line reach the right boundary of the given
|
|
434
|
4927 window.
|
|
|
4928
|
|
428
|
4929 This is very similar to generate_display_line but with the same
|
|
|
4930 limitations as create_string_text_block. I have taken the liberty
|
|
|
4931 of fixing the bytind stuff though.*/
|
|
|
4932
|
|
|
4933 static Bufpos
|
|
|
4934 generate_string_display_line (struct window *w, Lisp_Object disp_string,
|
|
|
4935 struct display_line *dl,
|
|
|
4936 Bufpos start_pos,
|
|
|
4937 prop_block_dynarr **prop,
|
|
|
4938 face_index default_face)
|
|
|
4939 {
|
|
|
4940 Bufpos ret_bufpos;
|
|
|
4941
|
|
|
4942 /* you must set bounds before calling this. */
|
|
434
|
4943
|
|
428
|
4944 /* Reset what this line is using. */
|
|
|
4945 if (dl->display_blocks)
|
|
|
4946 Dynarr_reset (dl->display_blocks);
|
|
|
4947 if (dl->left_glyphs)
|
|
|
4948 {
|
|
|
4949 Dynarr_free (dl->left_glyphs);
|
|
|
4950 dl->left_glyphs = 0;
|
|
|
4951 }
|
|
|
4952 if (dl->right_glyphs)
|
|
|
4953 {
|
|
|
4954 Dynarr_free (dl->right_glyphs);
|
|
|
4955 dl->right_glyphs = 0;
|
|
|
4956 }
|
|
|
4957
|
|
|
4958 /* We aren't generating a modeline at the moment. */
|
|
|
4959 dl->modeline = 0;
|
|
|
4960
|
|
|
4961 /* Create a display block for the text region of the line. */
|
|
|
4962 ret_bufpos = create_string_text_block (w, disp_string, dl, start_pos,
|
|
|
4963 prop, default_face);
|
|
|
4964 dl->bufpos = start_pos;
|
|
|
4965 if (dl->end_bufpos < dl->bufpos)
|
|
|
4966 dl->end_bufpos = dl->bufpos;
|
|
|
4967
|
|
|
4968 /* If there are left glyphs associated with any character in the
|
|
|
4969 text block, then create a display block to handle them. */
|
|
|
4970 if (dl->left_glyphs != NULL && Dynarr_length (dl->left_glyphs))
|
|
|
4971 create_left_glyph_block (w, dl, 0);
|
|
|
4972
|
|
|
4973 /* If there are right glyphs associated with any character in the
|
|
|
4974 text block, then create a display block to handle them. */
|
|
|
4975 if (dl->right_glyphs != NULL && Dynarr_length (dl->right_glyphs))
|
|
|
4976 create_right_glyph_block (w, dl);
|
|
|
4977
|
|
|
4978 return ret_bufpos;
|
|
|
4979 }
|
|
|
4980
|
|
|
4981 /* This is ripped off from regenerate_window. All we want to do is
|
|
|
4982 loop through elements in the string creating display lines until we
|
|
|
4983 have covered the provided area. Simple really. */
|
|
|
4984 void
|
|
|
4985 generate_displayable_area (struct window *w, Lisp_Object disp_string,
|
|
|
4986 int xpos, int ypos, int width, int height,
|
|
|
4987 display_line_dynarr* dla,
|
|
|
4988 Bufpos start_pos,
|
|
|
4989 face_index default_face)
|
|
|
4990 {
|
|
|
4991 int yend = ypos + height;
|
|
|
4992 Charcount s_zv;
|
|
|
4993
|
|
|
4994 prop_block_dynarr *prop = 0;
|
|
|
4995 layout_bounds bounds;
|
|
|
4996 assert (dla);
|
|
|
4997
|
|
|
4998 Dynarr_reset (dla);
|
|
|
4999 /* if there's nothing to do then do nothing. code after this assumes
|
|
|
5000 there is something to do. */
|
|
|
5001 if (NILP (disp_string))
|
|
|
5002 return;
|
|
|
5003
|
|
|
5004 s_zv = XSTRING_CHAR_LENGTH (disp_string);
|
|
|
5005
|
|
|
5006 bounds.left_out = xpos;
|
|
|
5007 bounds.right_out = xpos + width;
|
|
|
5008 /* The inner boundaries mark where the glyph margins are located. */
|
|
|
5009 bounds.left_in = bounds.left_out + window_left_margin_width (w);
|
|
|
5010 bounds.right_in = bounds.right_out - window_right_margin_width (w);
|
|
|
5011 /* We cannot fully calculate the whitespace boundaries as they
|
|
|
5012 depend on the contents of the line being displayed. */
|
|
|
5013 bounds.left_white = bounds.left_in;
|
|
|
5014 bounds.right_white = bounds.right_in;
|
|
|
5015
|
|
|
5016 while (ypos < yend)
|
|
|
5017 {
|
|
|
5018 struct display_line dl;
|
|
|
5019 struct display_line *dlp;
|
|
|
5020 Bufpos next_pos;
|
|
|
5021 int local;
|
|
|
5022
|
|
|
5023 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
5024 {
|
|
|
5025 dlp = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
5026 local = 0;
|
|
|
5027 }
|
|
|
5028 else
|
|
|
5029 {
|
|
|
5030
|
|
|
5031 xzero (dl);
|
|
|
5032 dlp = &dl;
|
|
|
5033 local = 1;
|
|
|
5034 }
|
|
|
5035
|
|
|
5036 dlp->bounds = bounds;
|
|
|
5037 dlp->offset = 0;
|
|
|
5038 next_pos = generate_string_display_line (w, disp_string, dlp, start_pos,
|
|
|
5039 &prop, default_face);
|
|
|
5040 /* we need to make sure that we continue along the line if there
|
|
|
5041 is more left to display otherwise we just end up redisplaying
|
|
|
5042 the same chunk over and over again. */
|
|
|
5043 if (next_pos == start_pos && next_pos < s_zv)
|
|
|
5044 start_pos++;
|
|
|
5045 else
|
|
|
5046 start_pos = next_pos;
|
|
|
5047
|
|
|
5048 dlp->ypos = ypos + dlp->ascent;
|
|
|
5049 ypos = dlp->ypos + dlp->descent;
|
|
|
5050
|
|
|
5051 if (ypos > yend)
|
|
|
5052 {
|
|
|
5053 int visible_height = dlp->ascent + dlp->descent;
|
|
|
5054
|
|
|
5055 dlp->clip = (ypos - yend);
|
|
|
5056 visible_height -= dlp->clip;
|
|
|
5057
|
|
|
5058 if (visible_height < VERTICAL_CLIP (w, 1))
|
|
|
5059 {
|
|
|
5060 if (local)
|
|
|
5061 free_display_line (dlp);
|
|
|
5062 break;
|
|
|
5063 }
|
|
|
5064 }
|
|
|
5065 else
|
|
|
5066 dlp->clip = 0;
|
|
|
5067
|
|
|
5068 Dynarr_add (dla, *dlp);
|
|
|
5069
|
|
|
5070 /* #### This type of check needs to be done down in the
|
|
|
5071 generate_display_line call. */
|
|
|
5072 if (start_pos >= s_zv)
|
|
|
5073 break;
|
|
|
5074 }
|
|
|
5075
|
|
|
5076 if (prop)
|
|
|
5077 Dynarr_free (prop);
|
|
|
5078 }
|
|
|
5079
|
|
|
5080
|
|
|
5081 /***************************************************************************/
|
|
|
5082 /* */
|
|
|
5083 /* window-regeneration routines */
|
|
|
5084 /* */
|
|
|
5085 /***************************************************************************/
|
|
|
5086
|
|
|
5087 /* For a given window and starting position in the buffer it contains,
|
|
|
5088 ensure that the TYPE display lines accurately represent the
|
|
|
5089 presentation of the window. We pass the buffer instead of getting
|
|
|
5090 it from the window since redisplay_window may have temporarily
|
|
|
5091 changed it to the echo area buffer. */
|
|
|
5092
|
|
|
5093 static void
|
|
|
5094 regenerate_window (struct window *w, Bufpos start_pos, Bufpos point, int type)
|
|
|
5095 {
|
|
|
5096 struct frame *f = XFRAME (w->frame);
|
|
|
5097 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5098 int ypos = WINDOW_TEXT_TOP (w);
|
|
|
5099 int yend; /* set farther down */
|
|
|
5100 int yclip = WINDOW_TEXT_TOP_CLIP (w);
|
|
|
5101
|
|
|
5102 prop_block_dynarr *prop;
|
|
|
5103 layout_bounds bounds;
|
|
|
5104 display_line_dynarr *dla;
|
|
|
5105 int need_modeline;
|
|
|
5106
|
|
|
5107 /* The lines had better exist by this point. */
|
|
|
5108 if (!(dla = window_display_lines (w, type)))
|
|
|
5109 abort ();
|
|
|
5110 Dynarr_reset (dla);
|
|
|
5111 w->max_line_len = 0;
|
|
|
5112
|
|
|
5113 /* Normally these get updated in redisplay_window but it is possible
|
|
|
5114 for this function to get called from some other points where that
|
|
|
5115 update may not have occurred. This acts as a safety check. */
|
|
|
5116 if (!Dynarr_length (w->face_cachels))
|
|
|
5117 reset_face_cachels (w);
|
|
|
5118 if (!Dynarr_length (w->glyph_cachels))
|
|
|
5119 reset_glyph_cachels (w);
|
|
|
5120
|
|
|
5121 Fset_marker (w->start[type], make_int (start_pos), w->buffer);
|
|
|
5122 Fset_marker (w->pointm[type], make_int (point), w->buffer);
|
|
|
5123 w->last_point_x[type] = -1;
|
|
|
5124 w->last_point_y[type] = -1;
|
|
|
5125
|
|
|
5126 /* Make sure a modeline is in the structs if needed. */
|
|
|
5127 need_modeline = ensure_modeline_generated (w, type);
|
|
|
5128
|
|
|
5129 /* Wait until here to set this so that the structs have a modeline
|
|
|
5130 generated in the case where one didn't exist. */
|
|
|
5131 yend = WINDOW_TEXT_BOTTOM (w);
|
|
|
5132
|
|
|
5133 bounds = calculate_display_line_boundaries (w, 0);
|
|
|
5134
|
|
|
5135 /* 97/3/14 jhod: stuff added here to support pre-prompts (used for input systems) */
|
|
|
5136 if (MINI_WINDOW_P (w)
|
|
|
5137 && (!NILP (Vminibuf_prompt) || !NILP (Vminibuf_preprompt))
|
|
|
5138 && !echo_area_active (f)
|
|
|
5139 && start_pos == BUF_BEGV (b))
|
|
|
5140 {
|
|
|
5141 struct prop_block pb;
|
|
|
5142 Lisp_Object string;
|
|
|
5143 prop = Dynarr_new (prop_block);
|
|
|
5144
|
|
|
5145 string = concat2(Vminibuf_preprompt, Vminibuf_prompt);
|
|
|
5146 pb.type = PROP_MINIBUF_PROMPT;
|
|
|
5147 pb.data.p_string.str = XSTRING_DATA(string);
|
|
|
5148 pb.data.p_string.len = XSTRING_LENGTH(string);
|
|
|
5149 Dynarr_add (prop, pb);
|
|
|
5150 }
|
|
|
5151 else
|
|
|
5152 prop = 0;
|
|
|
5153
|
|
|
5154 while (ypos < yend)
|
|
|
5155 {
|
|
|
5156 struct display_line dl;
|
|
|
5157 struct display_line *dlp;
|
|
|
5158 int local;
|
|
|
5159
|
|
|
5160 if (Dynarr_length (dla) < Dynarr_largest (dla))
|
|
|
5161 {
|
|
|
5162 dlp = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
5163 local = 0;
|
|
|
5164 }
|
|
|
5165 else
|
|
|
5166 {
|
|
|
5167
|
|
|
5168 xzero (dl);
|
|
|
5169 dlp = &dl;
|
|
|
5170 local = 1;
|
|
|
5171 }
|
|
|
5172
|
|
|
5173 dlp->bounds = bounds;
|
|
|
5174 dlp->offset = 0;
|
|
|
5175 start_pos = generate_display_line (w, dlp, 1, start_pos, &prop, type);
|
|
|
5176
|
|
|
5177 if (yclip > dlp->ascent)
|
|
|
5178 {
|
|
|
5179 /* this should never happen, but if it does just display the
|
|
|
5180 whole line */
|
|
|
5181 yclip = 0;
|
|
|
5182 }
|
|
|
5183
|
|
|
5184 dlp->ypos = (ypos + dlp->ascent) - yclip;
|
|
|
5185 ypos = dlp->ypos + dlp->descent;
|
|
|
5186
|
|
|
5187 /* See if we've been asked to start midway through a line, for
|
|
|
5188 partial display line scrolling. */
|
|
434
|
5189 if (yclip)
|
|
428
|
5190 {
|
|
|
5191 dlp->top_clip = yclip;
|
|
|
5192 yclip = 0;
|
|
|
5193 }
|
|
|
5194 else
|
|
|
5195 dlp->top_clip = 0;
|
|
|
5196
|
|
|
5197 if (ypos > yend)
|
|
|
5198 {
|
|
|
5199 int visible_height = dlp->ascent + dlp->descent;
|
|
|
5200
|
|
|
5201 dlp->clip = (ypos - yend);
|
|
|
5202 /* Although this seems strange we could have a single very
|
|
|
5203 tall line visible for which we need to account for both
|
|
|
5204 the top clip and the bottom clip. */
|
|
|
5205 visible_height -= (dlp->clip + dlp->top_clip);
|
|
|
5206
|
|
|
5207 if (visible_height < VERTICAL_CLIP (w, 1))
|
|
|
5208 {
|
|
|
5209 if (local)
|
|
|
5210 free_display_line (dlp);
|
|
|
5211 break;
|
|
|
5212 }
|
|
|
5213 }
|
|
|
5214 else
|
|
|
5215 dlp->clip = 0;
|
|
|
5216
|
|
|
5217 if (dlp->cursor_elt != -1)
|
|
|
5218 {
|
|
|
5219 /* #### This check is steaming crap. Have to get things
|
|
|
5220 fixed so when create_text_block hits EOB, we're done,
|
|
|
5221 period. */
|
|
|
5222 if (w->last_point_x[type] == -1)
|
|
|
5223 {
|
|
|
5224 w->last_point_x[type] = dlp->cursor_elt;
|
|
|
5225 w->last_point_y[type] = Dynarr_length (dla);
|
|
|
5226 }
|
|
|
5227 else
|
|
|
5228 {
|
|
|
5229 /* #### This means that we've added a cursor at EOB
|
|
|
5230 twice. Yuck oh yuck. */
|
|
|
5231 struct display_block *db =
|
|
|
5232 get_display_block_from_line (dlp, TEXT);
|
|
|
5233
|
|
|
5234 Dynarr_atp (db->runes, dlp->cursor_elt)->cursor_type = NO_CURSOR;
|
|
|
5235 dlp->cursor_elt = -1;
|
|
|
5236 }
|
|
|
5237 }
|
|
|
5238
|
|
|
5239 if (dlp->num_chars > w->max_line_len)
|
|
|
5240 w->max_line_len = dlp->num_chars;
|
|
|
5241
|
|
|
5242 Dynarr_add (dla, *dlp);
|
|
|
5243
|
|
|
5244 /* #### This isn't right, but it is close enough for now. */
|
|
|
5245 w->window_end_pos[type] = start_pos;
|
|
|
5246
|
|
|
5247 /* #### This type of check needs to be done down in the
|
|
|
5248 generate_display_line call. */
|
|
|
5249 if (start_pos > BUF_ZV (b))
|
|
|
5250 break;
|
|
|
5251 }
|
|
|
5252
|
|
|
5253 if (prop)
|
|
|
5254 Dynarr_free (prop);
|
|
|
5255
|
|
|
5256 /* #### More not quite right, but close enough. */
|
|
|
5257 /* #### Ben sez: apparently window_end_pos[] is measured
|
|
|
5258 as the number of characters between the window end and the
|
|
|
5259 end of the buffer? This seems rather weirdo. What's
|
|
|
5260 the justification for this? */
|
|
|
5261 w->window_end_pos[type] = BUF_Z (b) - w->window_end_pos[type];
|
|
|
5262
|
|
|
5263 if (need_modeline)
|
|
|
5264 {
|
|
|
5265 /* We know that this is the right thing to use because we put it
|
|
|
5266 there when we first started working in this function. */
|
|
|
5267 generate_modeline (w, Dynarr_atp (dla, 0), type);
|
|
|
5268 }
|
|
|
5269 }
|
|
|
5270
|
|
|
5271 #define REGEN_INC_FIND_START_END \
|
|
|
5272 do { \
|
|
|
5273 /* Determine start and end of lines. */ \
|
|
|
5274 if (!Dynarr_length (cdla)) \
|
|
|
5275 return 0; \
|
|
|
5276 else \
|
|
|
5277 { \
|
|
|
5278 if (Dynarr_atp (cdla, 0)->modeline && Dynarr_atp (ddla, 0)->modeline) \
|
|
|
5279 { \
|
|
|
5280 dla_start = 1; \
|
|
|
5281 } \
|
|
|
5282 else if (!Dynarr_atp (cdla, 0)->modeline \
|
|
|
5283 && !Dynarr_atp (ddla, 0)->modeline) \
|
|
|
5284 { \
|
|
|
5285 dla_start = 0; \
|
|
|
5286 } \
|
|
|
5287 else \
|
|
|
5288 abort (); /* structs differ */ \
|
|
|
5289 \
|
|
|
5290 dla_end = Dynarr_length (cdla) - 1; \
|
|
|
5291 } \
|
|
|
5292 \
|
|
|
5293 start_pos = (Dynarr_atp (cdla, dla_start)->bufpos \
|
|
|
5294 + Dynarr_atp (cdla, dla_start)->offset); \
|
|
|
5295 /* If this isn't true, then startp has changed and we need to do a \
|
|
|
5296 full regen. */ \
|
|
|
5297 if (startp != start_pos) \
|
|
|
5298 return 0; \
|
|
|
5299 \
|
|
|
5300 /* Point is outside the visible region so give up. */ \
|
|
|
5301 if (pointm < start_pos) \
|
|
|
5302 return 0; \
|
|
|
5303 \
|
|
|
5304 } while (0)
|
|
|
5305
|
|
|
5306 /* This attempts to incrementally update the display structures. It
|
|
|
5307 returns a boolean indicating success or failure. This function is
|
|
|
5308 very similar to regenerate_window_incrementally and is in fact only
|
|
|
5309 called from that function. However, because of the nature of the
|
|
|
5310 changes it deals with it sometimes makes different assumptions
|
|
|
5311 which can lead to success which are much more difficult to make
|
|
|
5312 when dealing with buffer changes. */
|
|
|
5313
|
|
|
5314 static int
|
|
|
5315 regenerate_window_extents_only_changed (struct window *w, Bufpos startp,
|
|
|
5316 Bufpos pointm,
|
|
|
5317 Charcount beg_unchanged,
|
|
|
5318 Charcount end_unchanged)
|
|
|
5319 {
|
|
|
5320 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5321 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
5322 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
5323
|
|
|
5324 int dla_start = 0;
|
|
|
5325 int dla_end, line;
|
|
|
5326 int first_line, last_line;
|
|
|
5327 Bufpos start_pos;
|
|
|
5328 /* Don't define this in the loop where it is used because we
|
|
|
5329 definitely want its value to survive between passes. */
|
|
|
5330 prop_block_dynarr *prop = NULL;
|
|
|
5331
|
|
|
5332 /* If we don't have any buffer change recorded but the modiff flag has
|
|
|
5333 been incremented, then fail. I'm not sure of the exact circumstances
|
|
|
5334 under which this can happen, but I believe that it is probably a
|
|
|
5335 reasonable happening. */
|
|
|
5336 if (!point_visible (w, pointm, CURRENT_DISP)
|
|
|
5337 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b))
|
|
|
5338 return 0;
|
|
|
5339
|
|
|
5340 /* If the cursor is moved we attempt to update it. If we succeed we
|
|
|
5341 go ahead and proceed with the optimization attempt. */
|
|
|
5342 if (!EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5343 || pointm != marker_position (w->last_point[CURRENT_DISP]))
|
|
|
5344 {
|
|
|
5345 struct frame *f = XFRAME (w->frame);
|
|
|
5346 struct device *d = XDEVICE (f->device);
|
|
|
5347 struct frame *sel_f = device_selected_frame (d);
|
|
|
5348 int success = 0;
|
|
|
5349
|
|
|
5350 if (w->last_point_x[CURRENT_DISP] != -1
|
|
|
5351 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
5352 {
|
|
|
5353
|
|
|
5354 if (redisplay_move_cursor (w, pointm, WINDOW_TTY_P (w)))
|
|
|
5355 {
|
|
|
5356 /* Always regenerate the modeline in case it is
|
|
|
5357 displaying the current line or column. */
|
|
|
5358 regenerate_modeline (w);
|
|
|
5359 success = 1;
|
|
|
5360 }
|
|
|
5361 }
|
|
|
5362 else if (w != XWINDOW (FRAME_SELECTED_WINDOW (sel_f)))
|
|
|
5363 {
|
|
|
5364 if (f->modeline_changed)
|
|
|
5365 regenerate_modeline (w);
|
|
|
5366 success = 1;
|
|
|
5367 }
|
|
|
5368
|
|
|
5369 if (!success)
|
|
|
5370 return 0;
|
|
|
5371 }
|
|
|
5372
|
|
|
5373 if (beg_unchanged == -1 && end_unchanged == -1)
|
|
|
5374 return 1;
|
|
|
5375
|
|
|
5376 /* assert: There are no buffer modifications or they are all below the
|
|
|
5377 visible region. We assume that regenerate_window_incrementally has
|
|
|
5378 not called us unless this is true. */
|
|
|
5379
|
|
|
5380 REGEN_INC_FIND_START_END;
|
|
|
5381
|
|
|
5382 /* If the changed are starts before the visible area, give up. */
|
|
|
5383 if (beg_unchanged < startp)
|
|
|
5384 return 0;
|
|
|
5385
|
|
|
5386 /* Find what display line the extent changes first affect. */
|
|
|
5387 line = dla_start;
|
|
|
5388 while (line <= dla_end)
|
|
|
5389 {
|
|
|
5390 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
5391 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
5392 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
5393
|
|
|
5394 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
5395 break;
|
|
|
5396
|
|
|
5397 line++;
|
|
|
5398 }
|
|
|
5399
|
|
|
5400 /* If the changes are below the visible area then if point hasn't
|
|
|
5401 moved return success otherwise fail in order to be safe. */
|
|
|
5402 if (line > dla_end)
|
|
|
5403 {
|
|
|
5404 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
5405 && pointm == marker_position (w->last_point[CURRENT_DISP]))
|
|
|
5406 return 1;
|
|
|
5407 else
|
|
|
5408 return 0;
|
|
|
5409 }
|
|
|
5410
|
|
|
5411 /* At this point we know what line the changes first affect. We now
|
|
|
5412 begin redrawing lines as long as we are still in the affected
|
|
|
5413 region and the line's size and positioning don't change.
|
|
|
5414 Otherwise we fail. If we fail we will have altered the desired
|
|
|
5415 structs which could lead to an assertion failure. However, if we
|
|
|
5416 fail the next thing that is going to happen is a full regen so we
|
|
|
5417 will actually end up being safe. */
|
|
|
5418 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
5419 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
5420 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
5421 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
5422
|
|
|
5423 first_line = last_line = line;
|
|
|
5424 while (line <= dla_end)
|
|
|
5425 {
|
|
|
5426 Bufpos old_start, old_end, new_start;
|
|
|
5427 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
5428 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
5429 struct display_block *db;
|
|
|
5430 int initial_size;
|
|
|
5431
|
|
|
5432 assert (cdl->bufpos == ddl->bufpos);
|
|
|
5433 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
5434 assert (cdl->offset == ddl->offset);
|
|
|
5435
|
|
|
5436 db = get_display_block_from_line (ddl, TEXT);
|
|
|
5437 initial_size = Dynarr_length (db->runes);
|
|
|
5438 old_start = ddl->bufpos + ddl->offset;
|
|
|
5439 old_end = ddl->end_bufpos + ddl->offset;
|
|
|
5440
|
|
|
5441 /* If this is the first line being updated and it used
|
|
|
5442 propagation data, fail. Otherwise we'll be okay because
|
|
|
5443 we'll have the necessary propagation data. */
|
|
|
5444 if (line == first_line && ddl->used_prop_data)
|
|
|
5445 return 0;
|
|
|
5446
|
|
|
5447 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
|
5448 &prop, DESIRED_DISP);
|
|
|
5449 ddl->offset = 0;
|
|
|
5450
|
|
|
5451 /* #### If there is propagated stuff the fail. We could
|
|
|
5452 probably actually deal with this if the line had propagated
|
|
|
5453 information when originally created by a full
|
|
|
5454 regeneration. */
|
|
|
5455 if (prop)
|
|
|
5456 {
|
|
|
5457 Dynarr_free (prop);
|
|
|
5458 return 0;
|
|
|
5459 }
|
|
|
5460
|
|
|
5461 /* If any line position parameters have changed or a
|
|
|
5462 cursor has disappeared or disappeared, fail. */
|
|
|
5463 db = get_display_block_from_line (ddl, TEXT);
|
|
|
5464 if (cdl->ypos != ddl->ypos
|
|
|
5465 || cdl->ascent != ddl->ascent
|
|
|
5466 || cdl->descent != ddl->descent
|
|
|
5467 || cdl->top_clip != ddl->top_clip
|
|
|
5468 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
5469 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
|
|
|
5470 || old_start != ddl->bufpos
|
|
|
5471 || old_end != ddl->end_bufpos
|
|
|
5472 || initial_size != Dynarr_length (db->runes))
|
|
|
5473 {
|
|
|
5474 return 0;
|
|
|
5475 }
|
|
|
5476
|
|
|
5477 if (ddl->cursor_elt != -1)
|
|
|
5478 {
|
|
|
5479 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
5480 w->last_point_y[DESIRED_DISP] = line;
|
|
|
5481 }
|
|
|
5482
|
|
|
5483 last_line = line;
|
|
|
5484
|
|
|
5485 /* If the extent changes end on the line we just updated then
|
|
|
5486 we're done. Otherwise go on to the next line. */
|
|
|
5487 if (end_unchanged <= ddl->end_bufpos)
|
|
|
5488 break;
|
|
|
5489 else
|
|
|
5490 line++;
|
|
|
5491 }
|
|
|
5492
|
|
|
5493 redisplay_update_line (w, first_line, last_line, 1);
|
|
|
5494 return 1;
|
|
|
5495 }
|
|
|
5496
|
|
|
5497 /* Attempt to update the display data structures based on knowledge of
|
|
|
5498 the changed region in the buffer. Returns a boolean indicating
|
|
|
5499 success or failure. If this function returns a failure then a
|
|
|
5500 regenerate_window _must_ be performed next in order to maintain
|
|
|
5501 invariants located here. */
|
|
|
5502
|
|
|
5503 static int
|
|
|
5504 regenerate_window_incrementally (struct window *w, Bufpos startp,
|
|
|
5505 Bufpos pointm)
|
|
|
5506 {
|
|
|
5507 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5508 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
5509 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
5510 Charcount beg_unchanged, end_unchanged;
|
|
|
5511 Charcount extent_beg_unchanged, extent_end_unchanged;
|
|
|
5512
|
|
|
5513 int dla_start = 0;
|
|
|
5514 int dla_end, line;
|
|
|
5515 Bufpos start_pos;
|
|
|
5516
|
|
|
5517 /* If this function is called, the current and desired structures
|
|
|
5518 had better be identical. If they are not, then that is a bug. */
|
|
|
5519 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
|
|
|
5520
|
|
|
5521 /* We don't handle minibuffer windows yet. The minibuffer prompt
|
|
|
5522 screws us up. */
|
|
|
5523 if (MINI_WINDOW_P (w))
|
|
|
5524 return 0;
|
|
|
5525
|
|
|
5526 extent_beg_unchanged = BUF_EXTENT_BEGIN_UNCHANGED (b);
|
|
|
5527 extent_end_unchanged = (BUF_EXTENT_END_UNCHANGED (b) == -1
|
|
|
5528 ? -1
|
|
|
5529 : BUF_Z (b) - BUF_EXTENT_END_UNCHANGED (b));
|
|
|
5530
|
|
|
5531 /* If nothing has changed in the buffer, then make sure point is ok
|
|
|
5532 and succeed. */
|
|
|
5533 if (BUF_BEGIN_UNCHANGED (b) == -1 && BUF_END_UNCHANGED (b) == -1)
|
|
|
5534 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5535 extent_beg_unchanged,
|
|
|
5536 extent_end_unchanged);
|
|
|
5537
|
|
|
5538 /* We can't deal with deleted newlines. */
|
|
|
5539 if (BUF_NEWLINE_WAS_DELETED (b))
|
|
|
5540 return 0;
|
|
|
5541
|
|
|
5542 beg_unchanged = BUF_BEGIN_UNCHANGED (b);
|
|
|
5543 end_unchanged = (BUF_END_UNCHANGED (b) == -1
|
|
|
5544 ? -1
|
|
|
5545 : BUF_Z (b) - BUF_END_UNCHANGED (b));
|
|
|
5546
|
|
|
5547 REGEN_INC_FIND_START_END;
|
|
|
5548
|
|
|
5549 /* If the changed area starts before the visible area, give up. */
|
|
|
5550 if (beg_unchanged < startp)
|
|
|
5551 return 0;
|
|
|
5552
|
|
|
5553 /* Find what display line the buffer changes first affect. */
|
|
|
5554 line = dla_start;
|
|
|
5555 while (line <= dla_end)
|
|
|
5556 {
|
|
|
5557 struct display_line *dl = Dynarr_atp (cdla, line);
|
|
|
5558 Bufpos lstart = dl->bufpos + dl->offset;
|
|
|
5559 Bufpos lend = dl->end_bufpos + dl->offset;
|
|
|
5560
|
|
|
5561 if (beg_unchanged >= lstart && beg_unchanged <= lend)
|
|
|
5562 break;
|
|
|
5563
|
|
|
5564 line++;
|
|
|
5565 }
|
|
|
5566
|
|
|
5567 /* If the changes are below the visible area then if point hasn't
|
|
|
5568 moved return success otherwise fail in order to be safe. */
|
|
|
5569 if (line > dla_end)
|
|
|
5570 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5571 extent_beg_unchanged,
|
|
|
5572 extent_end_unchanged);
|
|
|
5573 else
|
|
|
5574 /* At this point we know what line the changes first affect. We
|
|
|
5575 now redraw that line. If the changes are contained within it
|
|
|
5576 we are going to succeed and can update just that one line.
|
|
|
5577 Otherwise we fail. If we fail we will have altered the desired
|
|
|
5578 structs which could lead to an assertion failure. However, if
|
|
|
5579 we fail the next thing that is going to happen is a full regen
|
|
|
5580 so we will actually end up being safe. */
|
|
|
5581 {
|
|
|
5582 Bufpos new_start;
|
|
|
5583 prop_block_dynarr *prop = NULL;
|
|
|
5584 struct display_line *cdl = Dynarr_atp (cdla, line);
|
|
|
5585 struct display_line *ddl = Dynarr_atp (ddla, line);
|
|
|
5586
|
|
|
5587 assert (cdl->bufpos == ddl->bufpos);
|
|
|
5588 assert (cdl->end_bufpos == ddl->end_bufpos);
|
|
|
5589 assert (cdl->offset == ddl->offset);
|
|
|
5590
|
|
|
5591 /* If the last rune is already a continuation glyph, fail.
|
|
|
5592 #### We should be able to handle this better. */
|
|
|
5593 {
|
|
|
5594 struct display_block *db = get_display_block_from_line (ddl, TEXT);
|
|
|
5595 if (Dynarr_length (db->runes))
|
|
|
5596 {
|
|
|
5597 struct rune *rb =
|
|
|
5598 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
5599
|
|
|
5600 if (rb->type == RUNE_DGLYPH
|
|
|
5601 && EQ (rb->object.dglyph.glyph, Vcontinuation_glyph))
|
|
|
5602 return 0;
|
|
|
5603 }
|
|
|
5604 }
|
|
|
5605
|
|
|
5606 /* If the line was generated using propagation data, fail. */
|
|
|
5607 if (ddl->used_prop_data)
|
|
|
5608 return 0;
|
|
|
5609
|
|
|
5610 new_start = generate_display_line (w, ddl, 0, ddl->bufpos + ddl->offset,
|
|
|
5611 &prop, DESIRED_DISP);
|
|
|
5612 ddl->offset = 0;
|
|
|
5613
|
|
|
5614 /* If there is propagated stuff then it is pretty much a
|
|
|
5615 guarantee that more than just the one line is affected. */
|
|
|
5616 if (prop)
|
|
|
5617 {
|
|
|
5618 Dynarr_free (prop);
|
|
|
5619 return 0;
|
|
|
5620 }
|
|
|
5621
|
|
|
5622 /* If the last rune is now a continuation glyph, fail. */
|
|
|
5623 {
|
|
|
5624 struct display_block *db = get_display_block_from_line (ddl, TEXT);
|
|
|
5625 if (Dynarr_length (db->runes))
|
|
|
5626 {
|
|
|
5627 struct rune *rb =
|
|
|
5628 Dynarr_atp (db->runes, Dynarr_length (db->runes) - 1);
|
|
|
5629
|
|
|
5630 if (rb->type == RUNE_DGLYPH
|
|
|
5631 && EQ (rb->object.dglyph.glyph, Vcontinuation_glyph))
|
|
|
5632 return 0;
|
|
|
5633 }
|
|
|
5634 }
|
|
|
5635
|
|
|
5636 /* If any line position parameters have changed or a
|
|
|
5637 cursor has disappeared or disappeared, fail. */
|
|
|
5638 if (cdl->ypos != ddl->ypos
|
|
|
5639 || cdl->ascent != ddl->ascent
|
|
|
5640 || cdl->descent != ddl->descent
|
|
|
5641 || cdl->top_clip != ddl->top_clip
|
|
|
5642 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)
|
|
|
5643 || (cdl->cursor_elt == -1 && ddl->cursor_elt != -1))
|
|
|
5644 {
|
|
|
5645 return 0;
|
|
|
5646 }
|
|
|
5647
|
|
|
5648 /* If the changed area also ends on this line, then we may be in
|
|
|
5649 business. Update everything and return success. */
|
|
|
5650 if (end_unchanged >= ddl->bufpos && end_unchanged <= ddl->end_bufpos)
|
|
|
5651 {
|
|
|
5652 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
5653 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
5654 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp),
|
|
|
5655 w->buffer);
|
|
|
5656 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm),
|
|
|
5657 w->buffer);
|
|
|
5658
|
|
|
5659 if (ddl->cursor_elt != -1)
|
|
|
5660 {
|
|
|
5661 w->last_point_x[DESIRED_DISP] = ddl->cursor_elt;
|
|
|
5662 w->last_point_y[DESIRED_DISP] = line;
|
|
|
5663 }
|
|
|
5664
|
|
|
5665 redisplay_update_line (w, line, line, 1);
|
|
|
5666 regenerate_modeline (w);
|
|
|
5667
|
|
|
5668 /* #### For now we just flush the cache until this has been
|
|
|
5669 tested. After that is done, this should correct the
|
|
|
5670 cache directly. */
|
|
|
5671 Dynarr_reset (w->line_start_cache);
|
|
|
5672
|
|
|
5673 /* Adjust the extent changed boundaries to remove any
|
|
|
5674 overlap with the buffer changes since we've just
|
|
|
5675 successfully updated that area. */
|
|
|
5676 if (extent_beg_unchanged != -1
|
|
|
5677 && extent_beg_unchanged >= beg_unchanged
|
|
|
5678 && extent_beg_unchanged < end_unchanged)
|
|
|
5679 extent_beg_unchanged = end_unchanged;
|
|
|
5680
|
|
|
5681 if (extent_end_unchanged != -1
|
|
|
5682 && extent_end_unchanged >= beg_unchanged
|
|
|
5683 && extent_end_unchanged < end_unchanged)
|
|
|
5684 extent_end_unchanged = beg_unchanged - 1;
|
|
|
5685
|
|
|
5686 if (extent_end_unchanged <= extent_beg_unchanged)
|
|
|
5687 extent_beg_unchanged = extent_end_unchanged = -1;
|
|
|
5688
|
|
|
5689 /* This could lead to odd results if it fails, but since the
|
|
|
5690 buffer changes update succeeded this probably will to.
|
|
|
5691 We already know that the extent changes start at or after
|
|
|
5692 the line because we checked before entering the loop. */
|
|
|
5693 if (extent_beg_unchanged != -1
|
|
|
5694 && extent_end_unchanged != -1
|
|
|
5695 && ((extent_beg_unchanged < ddl->bufpos)
|
|
|
5696 || (extent_end_unchanged > ddl->end_bufpos)))
|
|
|
5697 return regenerate_window_extents_only_changed (w, startp, pointm,
|
|
|
5698 extent_beg_unchanged,
|
|
|
5699 extent_end_unchanged);
|
|
|
5700 else
|
|
|
5701 return 1;
|
|
|
5702 }
|
|
|
5703 }
|
|
|
5704
|
|
|
5705 /* Oh, well. */
|
|
|
5706 return 0;
|
|
|
5707 }
|
|
|
5708
|
|
|
5709 /* Given a window and a point, update the given display lines such
|
|
|
5710 that point is displayed in the middle of the window.
|
|
|
5711 Return the window's new start position. */
|
|
|
5712
|
|
|
5713 static Bufpos
|
|
|
5714 regenerate_window_point_center (struct window *w, Bufpos point, int type)
|
|
|
5715 {
|
|
|
5716 Bufpos startp;
|
|
|
5717
|
|
|
5718 /* We need to make sure that the modeline is generated so that the
|
|
|
5719 window height can be calculated correctly. */
|
|
|
5720 ensure_modeline_generated (w, type);
|
|
|
5721
|
|
|
5722 startp = start_with_line_at_pixpos (w, point, window_half_pixpos (w));
|
|
|
5723 regenerate_window (w, startp, point, type);
|
|
|
5724 Fset_marker (w->start[type], make_int (startp), w->buffer);
|
|
|
5725
|
|
|
5726 return startp;
|
|
|
5727 }
|
|
|
5728
|
|
|
5729 /* Given a window and a set of display lines, return a boolean
|
|
|
5730 indicating whether the given point is contained within. */
|
|
|
5731
|
|
|
5732 static int
|
|
|
5733 point_visible (struct window *w, Bufpos point, int type)
|
|
|
5734 {
|
|
|
5735 struct buffer *b = XBUFFER (w->buffer);
|
|
|
5736 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
5737 int first_line;
|
|
|
5738
|
|
|
5739 if (Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
5740 first_line = 1;
|
|
|
5741 else
|
|
|
5742 first_line = 0;
|
|
|
5743
|
|
|
5744 if (Dynarr_length (dla) > first_line)
|
|
|
5745 {
|
|
|
5746 Bufpos start, end;
|
|
|
5747 struct display_line *dl = Dynarr_atp (dla, first_line);
|
|
|
5748
|
|
|
5749 start = dl->bufpos;
|
|
|
5750 end = BUF_Z (b) - w->window_end_pos[type] - 1;
|
|
|
5751
|
|
|
5752 if (point >= start && point <= end)
|
|
|
5753 {
|
|
|
5754 if (!MINI_WINDOW_P (w) && scroll_on_clipped_lines)
|
|
|
5755 {
|
|
|
5756 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
5757
|
|
|
5758 if (point >= (dl->bufpos + dl->offset)
|
|
|
5759 && point <= (dl->end_bufpos + dl->offset))
|
|
|
5760 return !dl->clip;
|
|
|
5761 else
|
|
|
5762 return 1;
|
|
|
5763 }
|
|
|
5764 else
|
|
|
5765 return 1;
|
|
|
5766 }
|
|
|
5767 else
|
|
|
5768 return 0;
|
|
|
5769 }
|
|
|
5770 else
|
|
|
5771 return 0;
|
|
|
5772 }
|
|
|
5773
|
|
|
5774 /* Return pixel position the middle of the window, not including the
|
|
|
5775 modeline and any potential horizontal scrollbar. */
|
|
|
5776
|
|
|
5777 int
|
|
|
5778 window_half_pixpos (struct window *w)
|
|
|
5779 {
|
|
|
5780 return WINDOW_TEXT_TOP (w) + (WINDOW_TEXT_HEIGHT (w) >> 1);
|
|
|
5781 }
|
|
|
5782
|
|
|
5783 /* Return the display line which is currently in the middle of the
|
|
|
5784 window W for display lines TYPE. */
|
|
|
5785
|
|
|
5786 int
|
|
|
5787 line_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
5788 {
|
|
|
5789 display_line_dynarr *dla;
|
|
|
5790 int half;
|
|
|
5791 int elt;
|
|
|
5792 int first_elt = (MINI_WINDOW_P (w) ? 0 : 1);
|
|
|
5793
|
|
|
5794 if (type == CMOTION_DISP)
|
|
|
5795 regenerate_window (w, start, point, type);
|
|
|
5796
|
|
|
5797 dla = window_display_lines (w, type);
|
|
|
5798 half = window_half_pixpos (w);
|
|
|
5799
|
|
|
5800 for (elt = first_elt; elt < Dynarr_length (dla); elt++)
|
|
|
5801 {
|
|
|
5802 struct display_line *dl = Dynarr_atp (dla, elt);
|
|
|
5803 int line_bot = dl->ypos + dl->descent;
|
|
|
5804
|
|
|
5805 if (line_bot > half)
|
|
|
5806 return elt;
|
|
|
5807 }
|
|
|
5808
|
|
|
5809 /* We may not have a line at the middle if the end of the buffer is
|
|
|
5810 being displayed. */
|
|
|
5811 return -1;
|
|
|
5812 }
|
|
|
5813
|
|
|
5814 /* Return a value for point that would place it at the beginning of
|
|
|
5815 the line which is in the middle of the window. */
|
|
|
5816
|
|
|
5817 Bufpos
|
|
|
5818 point_at_center (struct window *w, int type, Bufpos start, Bufpos point)
|
|
|
5819 {
|
|
|
5820 /* line_at_center will regenerate the display structures, if necessary. */
|
|
|
5821 int line = line_at_center (w, type, start, point);
|
|
|
5822
|
|
|
5823 if (line == -1)
|
|
|
5824 return BUF_ZV (XBUFFER (w->buffer));
|
|
|
5825 else
|
|
|
5826 {
|
|
|
5827 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
5828 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
5829
|
|
|
5830 return dl->bufpos;
|
|
|
5831 }
|
|
|
5832 }
|
|
|
5833
|
|
|
5834 /* For a given window, ensure that the current visual representation
|
|
|
5835 is accurate. */
|
|
|
5836
|
|
|
5837 static void
|
|
|
5838 redisplay_window (Lisp_Object window, int skip_selected)
|
|
|
5839 {
|
|
|
5840 struct window *w = XWINDOW (window);
|
|
|
5841 struct frame *f = XFRAME (w->frame);
|
|
|
5842 struct device *d = XDEVICE (f->device);
|
|
|
5843 Lisp_Object old_buffer = w->buffer;
|
|
|
5844 Lisp_Object the_buffer = w->buffer;
|
|
|
5845 struct buffer *b;
|
|
|
5846 int echo_active = 0;
|
|
|
5847 int startp = 1;
|
|
|
5848 int pointm;
|
|
|
5849 int old_startp = 1;
|
|
|
5850 int old_pointm = 1;
|
|
|
5851 int selected_in_its_frame;
|
|
|
5852 int selected_globally;
|
|
|
5853 int skip_output = 0;
|
|
|
5854 int truncation_changed;
|
|
|
5855 int inactive_minibuffer =
|
|
|
5856 (MINI_WINDOW_P (w) &&
|
|
|
5857 (f != device_selected_frame (d)) &&
|
|
|
5858 !is_surrogate_for_selected_frame (f));
|
|
|
5859
|
|
|
5860 /* #### In the new world this function actually does a bunch of
|
|
|
5861 optimizations such as buffer-based scrolling, but none of that is
|
|
|
5862 implemented yet. */
|
|
|
5863
|
|
|
5864 /* If this is a combination window, do its children; that's all.
|
|
|
5865 The selected window is always a leaf so we don't check for
|
|
|
5866 skip_selected here. */
|
|
|
5867 if (!NILP (w->vchild))
|
|
|
5868 {
|
|
|
5869 redisplay_windows (w->vchild, skip_selected);
|
|
|
5870 return;
|
|
|
5871 }
|
|
|
5872 if (!NILP (w->hchild))
|
|
|
5873 {
|
|
|
5874 redisplay_windows (w->hchild, skip_selected);
|
|
|
5875 return;
|
|
|
5876 }
|
|
|
5877
|
|
|
5878 /* Is this window the selected window on its frame? */
|
|
|
5879 selected_in_its_frame = (w == XWINDOW (FRAME_SELECTED_WINDOW (f)));
|
|
|
5880 selected_globally =
|
|
|
5881 selected_in_its_frame &&
|
|
|
5882 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
5883 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d &&
|
|
|
5884 XFRAME(DEVICE_SELECTED_FRAME(d)) == f;
|
|
|
5885 if (skip_selected && selected_in_its_frame)
|
|
|
5886 return;
|
|
|
5887
|
|
|
5888 /* It is possible that the window is not fully initialized yet. */
|
|
|
5889 if (NILP (w->buffer))
|
|
|
5890 return;
|
|
|
5891
|
|
|
5892 if (MINI_WINDOW_P (w) && echo_area_active (f))
|
|
|
5893 {
|
|
|
5894 w->buffer = the_buffer = Vecho_area_buffer;
|
|
|
5895 echo_active = 1;
|
|
|
5896 }
|
|
|
5897
|
|
|
5898 b = XBUFFER (w->buffer);
|
|
|
5899
|
|
|
5900 if (echo_active)
|
|
|
5901 {
|
|
|
5902 old_pointm = selected_globally
|
|
|
5903 ? BUF_PT (b)
|
|
|
5904 : marker_position (w->pointm[CURRENT_DISP]);
|
|
|
5905 pointm = 1;
|
|
|
5906 }
|
|
|
5907 else
|
|
|
5908 {
|
|
|
5909 if (selected_globally)
|
|
|
5910 {
|
|
|
5911 pointm = BUF_PT (b);
|
|
|
5912 }
|
|
|
5913 else
|
|
|
5914 {
|
|
|
5915 pointm = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
5916
|
|
|
5917 if (pointm < BUF_BEGV (b))
|
|
|
5918 pointm = BUF_BEGV (b);
|
|
|
5919 else if (pointm > BUF_ZV (b))
|
|
|
5920 pointm = BUF_ZV (b);
|
|
|
5921 }
|
|
|
5922 }
|
|
|
5923 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm), the_buffer);
|
|
|
5924
|
|
|
5925 /* If the buffer has changed we have to invalidate all of our face
|
|
|
5926 cache elements. */
|
|
|
5927 if ((!echo_active && b != window_display_buffer (w))
|
|
|
5928 || !Dynarr_length (w->face_cachels)
|
|
|
5929 || f->faces_changed)
|
|
|
5930 reset_face_cachels (w);
|
|
|
5931 else
|
|
|
5932 mark_face_cachels_as_not_updated (w);
|
|
|
5933
|
|
|
5934 /* Ditto the glyph cache elements, although we do *not* invalidate
|
|
|
5935 the cache purely because glyphs have changed - this is now
|
|
|
5936 handled by the dirty flag.*/
|
|
|
5937 if ((!echo_active && b != window_display_buffer (w))
|
|
440
|
5938 || !Dynarr_length (w->glyph_cachels) || f->faces_changed)
|
|
428
|
5939 reset_glyph_cachels (w);
|
|
|
5940 else
|
|
|
5941 mark_glyph_cachels_as_not_updated (w);
|
|
|
5942
|
|
|
5943 /* If the marker's buffer is not the window's buffer, then we need
|
|
|
5944 to find a new starting position. */
|
|
|
5945 if (!MINI_WINDOW_P (w)
|
|
|
5946 && !EQ (Fmarker_buffer (w->start[CURRENT_DISP]), w->buffer))
|
|
|
5947 {
|
|
|
5948 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
|
5949
|
|
|
5950 goto regeneration_done;
|
|
|
5951 }
|
|
|
5952
|
|
|
5953 if (echo_active)
|
|
|
5954 {
|
|
|
5955 old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
5956 startp = 1;
|
|
|
5957 }
|
|
|
5958 else
|
|
|
5959 {
|
|
|
5960 startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
5961 if (startp < BUF_BEGV (b))
|
|
|
5962 startp = BUF_BEGV (b);
|
|
|
5963 else if (startp > BUF_ZV (b))
|
|
|
5964 startp = BUF_ZV (b);
|
|
|
5965 }
|
|
|
5966 Fset_marker (w->start[DESIRED_DISP], make_int (startp), the_buffer);
|
|
|
5967
|
|
|
5968 truncation_changed = (find_window_mirror (w)->truncate_win !=
|
|
|
5969 window_truncation_on (w));
|
|
|
5970
|
|
|
5971 /* If w->force_start is set, then some function set w->start and we
|
|
|
5972 should display from there and change point, if necessary, to
|
|
|
5973 ensure that it is visible. */
|
|
|
5974 if (w->force_start || inactive_minibuffer)
|
|
|
5975 {
|
|
|
5976 w->force_start = 0;
|
|
|
5977 w->last_modified[DESIRED_DISP] = Qzero;
|
|
|
5978 w->last_facechange[DESIRED_DISP] = Qzero;
|
|
|
5979
|
|
|
5980 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5981
|
|
|
5982 if (!point_visible (w, pointm, DESIRED_DISP) && !inactive_minibuffer)
|
|
|
5983 {
|
|
|
5984 pointm = point_at_center (w, DESIRED_DISP, 0, 0);
|
|
|
5985
|
|
|
5986 if (selected_globally)
|
|
|
5987 BUF_SET_PT (b, pointm);
|
|
|
5988
|
|
|
5989 Fset_marker (w->pointm[DESIRED_DISP], make_int (pointm),
|
|
|
5990 the_buffer);
|
|
|
5991
|
|
|
5992 /* #### BUFU amounts of overkill just to get the cursor
|
|
|
5993 location marked properly. FIX ME FIX ME FIX ME */
|
|
|
5994 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
5995 }
|
|
|
5996
|
|
|
5997 goto regeneration_done;
|
|
|
5998 }
|
|
|
5999
|
|
|
6000 /* If nothing has changed since the last redisplay, then we just
|
|
|
6001 need to make sure that point is still visible. */
|
|
|
6002 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
6003 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b)
|
|
|
6004 && pointm >= startp
|
|
|
6005 /* This check is to make sure we restore the minibuffer after a
|
|
|
6006 temporary change to the echo area. */
|
|
|
6007 && !(MINI_WINDOW_P (w) && f->buffers_changed)
|
|
|
6008 && !f->frame_changed
|
|
|
6009 && !truncation_changed
|
|
|
6010 /* check whether start is really at the begining of a line GE */
|
|
|
6011 && (!w->start_at_line_beg || beginning_of_line_p (b, startp))
|
|
|
6012 )
|
|
|
6013 {
|
|
|
6014 /* Check if the cursor has actually moved. */
|
|
|
6015 if (EQ (Fmarker_buffer (w->last_point[CURRENT_DISP]), w->buffer)
|
|
|
6016 && pointm == marker_position (w->last_point[CURRENT_DISP])
|
|
|
6017 && selected_globally
|
|
|
6018 && !w->windows_changed
|
|
|
6019 && !f->clip_changed
|
|
|
6020 && !f->extents_changed
|
|
|
6021 && !f->faces_changed
|
|
|
6022 && !f->glyphs_changed
|
|
|
6023 && !f->subwindows_changed
|
|
|
6024 && !f->subwindows_state_changed
|
|
|
6025 && !f->point_changed
|
|
|
6026 && !f->windows_structure_changed)
|
|
|
6027 {
|
|
|
6028 /* If not, we're done. */
|
|
|
6029 if (f->modeline_changed)
|
|
|
6030 regenerate_modeline (w);
|
|
|
6031
|
|
|
6032 skip_output = 1;
|
|
|
6033 goto regeneration_done;
|
|
|
6034 }
|
|
|
6035 else
|
|
|
6036 {
|
|
|
6037 /* If the new point is visible in the redisplay structures,
|
|
|
6038 then let the output update routines handle it, otherwise
|
|
|
6039 do things the hard way. */
|
|
|
6040 if (!w->windows_changed
|
|
|
6041 && !f->clip_changed
|
|
|
6042 && !f->extents_changed
|
|
|
6043 && !f->faces_changed
|
|
|
6044 && !f->glyphs_changed
|
|
|
6045 && !f->subwindows_changed
|
|
|
6046 && !f->subwindows_state_changed
|
|
|
6047 && !f->windows_structure_changed)
|
|
|
6048 {
|
|
|
6049 if (point_visible (w, pointm, CURRENT_DISP)
|
|
|
6050 && w->last_point_x[CURRENT_DISP] != -1
|
|
|
6051 && w->last_point_y[CURRENT_DISP] != -1)
|
|
|
6052 {
|
|
|
6053 if (redisplay_move_cursor (w, pointm, FRAME_TTY_P (f)))
|
|
|
6054 {
|
|
|
6055 /* Always regenerate in case it is displaying
|
|
|
6056 the current line or column. */
|
|
|
6057 regenerate_modeline (w);
|
|
|
6058
|
|
|
6059 skip_output = 1;
|
|
|
6060 goto regeneration_done;
|
|
|
6061 }
|
|
|
6062 }
|
|
|
6063 else if (!selected_in_its_frame && !f->point_changed)
|
|
|
6064 {
|
|
|
6065 if (f->modeline_changed)
|
|
|
6066 regenerate_modeline (w);
|
|
|
6067
|
|
|
6068 skip_output = 1;
|
|
|
6069 goto regeneration_done;
|
|
|
6070 }
|
|
|
6071 }
|
|
|
6072
|
|
|
6073 /* If we weren't able to take the shortcut method, then use
|
|
|
6074 the brute force method. */
|
|
|
6075 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6076
|
|
|
6077 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6078 goto regeneration_done;
|
|
|
6079 }
|
|
|
6080 }
|
|
|
6081
|
|
|
6082 /* Check if the starting point is no longer at the beginning of a
|
|
|
6083 line, in which case find a new starting point. We also recenter
|
|
|
6084 if our start position is equal to point-max. Otherwise we'll end
|
|
|
6085 up with a blank window. */
|
|
|
6086 else if (((w->start_at_line_beg || MINI_WINDOW_P (w))
|
|
|
6087 && !(startp == BUF_BEGV (b)
|
|
|
6088 || BUF_FETCH_CHAR (b, startp - 1) == '\n'))
|
|
|
6089 || (pointm == startp &&
|
|
|
6090 EQ (Fmarker_buffer (w->last_start[CURRENT_DISP]), w->buffer) &&
|
|
|
6091 startp < marker_position (w->last_start[CURRENT_DISP]))
|
|
|
6092 || (startp == BUF_ZV (b)))
|
|
|
6093 {
|
|
|
6094 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
|
6095
|
|
|
6096 goto regeneration_done;
|
|
|
6097 }
|
|
|
6098 /* See if we can update the data structures locally based on
|
|
|
6099 knowledge of what changed in the buffer. */
|
|
|
6100 else if (!w->windows_changed
|
|
|
6101 && !f->clip_changed
|
|
|
6102 && !f->faces_changed
|
|
|
6103 && !f->glyphs_changed
|
|
|
6104 && !f->subwindows_changed
|
|
|
6105 && !f->subwindows_state_changed
|
|
|
6106 && !f->windows_structure_changed
|
|
|
6107 && !f->frame_changed
|
|
|
6108 && !truncation_changed
|
|
|
6109 && pointm >= startp
|
|
|
6110 && regenerate_window_incrementally (w, startp, pointm))
|
|
|
6111 {
|
|
|
6112 if (f->modeline_changed
|
|
|
6113 || XINT (w->last_modified[CURRENT_DISP]) < BUF_MODIFF (b)
|
|
|
6114 || XINT (w->last_facechange[CURRENT_DISP]) < BUF_FACECHANGE (b))
|
|
|
6115 regenerate_modeline (w);
|
|
|
6116
|
|
|
6117 skip_output = 1;
|
|
|
6118 goto regeneration_done;
|
|
|
6119 }
|
|
|
6120 /* #### This is where a check for structure based scrolling would go. */
|
|
|
6121 /* If all else fails, try just regenerating and see what happens. */
|
|
|
6122 else
|
|
|
6123 {
|
|
|
6124 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6125
|
|
|
6126 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6127 goto regeneration_done;
|
|
|
6128 }
|
|
|
6129
|
|
|
6130 /* We still haven't gotten the window regenerated with point
|
|
|
6131 visible. Next we try scrolling a little and see if point comes
|
|
|
6132 back onto the screen. */
|
|
|
6133 if (scroll_step > 0)
|
|
|
6134 {
|
|
|
6135 int scrolled = scroll_conservatively;
|
|
|
6136 for (; scrolled >= 0; scrolled -= scroll_step)
|
|
|
6137 {
|
|
|
6138 startp = vmotion (w, startp,
|
|
|
6139 (pointm < startp) ? -scroll_step : scroll_step, 0);
|
|
|
6140 regenerate_window (w, startp, pointm, DESIRED_DISP);
|
|
|
6141
|
|
|
6142 if (point_visible (w, pointm, DESIRED_DISP))
|
|
|
6143 goto regeneration_done;
|
|
|
6144 }
|
|
|
6145 }
|
|
|
6146
|
|
|
6147 /* We still haven't managed to get the screen drawn with point on
|
|
|
6148 the screen, so just center it and be done with it. */
|
|
|
6149 startp = regenerate_window_point_center (w, pointm, DESIRED_DISP);
|
|
|
6150
|
|
|
6151
|
|
|
6152 regeneration_done:
|
|
|
6153
|
|
|
6154 /* If the window's frame is changed then reset the current display
|
|
|
6155 lines in order to force a full repaint. */
|
|
|
6156 if (f->frame_changed)
|
|
|
6157 {
|
|
|
6158 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
|
|
|
6159
|
|
|
6160 Dynarr_reset (cla);
|
|
|
6161 }
|
|
|
6162
|
|
|
6163 /* Must do this before calling redisplay_output_window because it
|
|
|
6164 sets some markers on the window. */
|
|
|
6165 if (echo_active)
|
|
|
6166 {
|
|
|
6167 w->buffer = old_buffer;
|
|
|
6168 Fset_marker (w->pointm[DESIRED_DISP], make_int (old_pointm), old_buffer);
|
|
|
6169 Fset_marker (w->start[DESIRED_DISP], make_int (old_startp), old_buffer);
|
|
|
6170 }
|
|
|
6171
|
|
|
6172 /* These also have to be set before calling redisplay_output_window
|
|
|
6173 since it sets the CURRENT_DISP values based on them. */
|
|
|
6174 w->last_modified[DESIRED_DISP] = make_int (BUF_MODIFF (b));
|
|
|
6175 w->last_facechange[DESIRED_DISP] = make_int (BUF_FACECHANGE (b));
|
|
|
6176 Fset_marker (w->last_start[DESIRED_DISP], make_int (startp), w->buffer);
|
|
|
6177 Fset_marker (w->last_point[DESIRED_DISP], make_int (pointm), w->buffer);
|
|
|
6178
|
|
|
6179 if (!skip_output)
|
|
|
6180 {
|
|
|
6181 Bufpos start = marker_position (w->start[DESIRED_DISP]);
|
|
|
6182 Bufpos end = (w->window_end_pos[DESIRED_DISP] == -1
|
|
|
6183 ? BUF_ZV (b)
|
|
|
6184 : BUF_Z (b) - w->window_end_pos[DESIRED_DISP] - 1);
|
|
|
6185 /* Don't pollute the cache if not sure if we are correct */
|
|
|
6186 if (w->start_at_line_beg)
|
|
|
6187 update_line_start_cache (w, start, end, pointm, 1);
|
|
|
6188 redisplay_output_window (w);
|
|
|
6189 /*
|
|
|
6190 * If we just displayed the echo area, the line start cache is
|
|
|
6191 * no longer valid, because the minibuffer window is associated
|
|
|
6192 * with the window now.
|
|
|
6193 */
|
|
|
6194 if (echo_active)
|
|
|
6195 w->line_cache_last_updated = make_int (-1);
|
|
|
6196 }
|
|
|
6197
|
|
|
6198 /* #### This should be dependent on face changes and will need to be
|
|
|
6199 somewhere else once tty updates occur on a per-frame basis. */
|
|
|
6200 mark_face_cachels_as_clean (w);
|
|
|
6201
|
|
438
|
6202 /* The glyph cachels only get dirty if someone changed something.
|
|
|
6203 Since redisplay has now effectively ended we can reset the dirty
|
|
|
6204 flag since everything must be up-to-date. */
|
|
428
|
6205 if (glyphs_changed)
|
|
|
6206 mark_glyph_cachels_as_clean (w);
|
|
|
6207
|
|
|
6208 w->windows_changed = 0;
|
|
|
6209 }
|
|
|
6210
|
|
|
6211 /* Call buffer_reset_changes for all buffers present in any window
|
|
|
6212 currently visible in all frames on all devices. #### There has to
|
|
|
6213 be a better way to do this. */
|
|
|
6214
|
|
|
6215 static int
|
|
|
6216 reset_buffer_changes_mapfun (struct window *w, void *ignored_closure)
|
|
|
6217 {
|
|
|
6218 buffer_reset_changes (XBUFFER (w->buffer));
|
|
|
6219 return 0;
|
|
|
6220 }
|
|
|
6221
|
|
|
6222 static void
|
|
|
6223 reset_buffer_changes (void)
|
|
|
6224 {
|
|
|
6225 Lisp_Object frmcons, devcons, concons;
|
|
|
6226
|
|
|
6227 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
6228 {
|
|
|
6229 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
6230
|
|
|
6231 if (FRAME_REPAINT_P (f))
|
|
|
6232 map_windows (f, reset_buffer_changes_mapfun, 0);
|
|
|
6233 }
|
|
|
6234 }
|
|
|
6235
|
|
|
6236 /* Ensure that all windows underneath the given window in the window
|
|
|
6237 hierarchy are correctly displayed. */
|
|
|
6238
|
|
|
6239 static void
|
|
|
6240 redisplay_windows (Lisp_Object window, int skip_selected)
|
|
|
6241 {
|
|
|
6242 for (; !NILP (window) ; window = XWINDOW (window)->next)
|
|
|
6243 {
|
|
|
6244 redisplay_window (window, skip_selected);
|
|
|
6245 }
|
|
|
6246 }
|
|
|
6247
|
|
|
6248 static int
|
|
|
6249 call_redisplay_end_triggers (struct window *w, void *closure)
|
|
|
6250 {
|
|
|
6251 Bufpos lrpos = w->last_redisplay_pos;
|
|
|
6252 w->last_redisplay_pos = 0;
|
|
|
6253 if (!NILP (w->buffer)
|
|
|
6254 && !NILP (w->redisplay_end_trigger)
|
|
|
6255 && lrpos > 0)
|
|
|
6256 {
|
|
|
6257 Bufpos pos;
|
|
|
6258
|
|
|
6259 if (MARKERP (w->redisplay_end_trigger)
|
|
|
6260 && XMARKER (w->redisplay_end_trigger)->buffer != 0)
|
|
|
6261 pos = marker_position (w->redisplay_end_trigger);
|
|
|
6262 else if (INTP (w->redisplay_end_trigger))
|
|
|
6263 pos = XINT (w->redisplay_end_trigger);
|
|
|
6264 else
|
|
|
6265 {
|
|
|
6266 w->redisplay_end_trigger = Qnil;
|
|
|
6267 return 0;
|
|
|
6268 }
|
|
|
6269
|
|
|
6270 if (lrpos >= pos)
|
|
|
6271 {
|
|
|
6272 Lisp_Object window;
|
|
|
6273 XSETWINDOW (window, w);
|
|
|
6274 va_run_hook_with_args_in_buffer (XBUFFER (w->buffer),
|
|
|
6275 Qredisplay_end_trigger_functions,
|
|
|
6276 2, window,
|
|
|
6277 w->redisplay_end_trigger);
|
|
|
6278 w->redisplay_end_trigger = Qnil;
|
|
|
6279 }
|
|
|
6280 }
|
|
|
6281
|
|
|
6282 return 0;
|
|
|
6283 }
|
|
|
6284
|
|
|
6285 /* Ensure that all windows on the given frame are correctly displayed. */
|
|
|
6286
|
|
|
6287 static int
|
|
|
6288 redisplay_frame (struct frame *f, int preemption_check)
|
|
|
6289 {
|
|
|
6290 struct device *d = XDEVICE (f->device);
|
|
|
6291
|
|
|
6292 if (preemption_check)
|
|
|
6293 {
|
|
|
6294 /* The preemption check itself takes a lot of time,
|
|
|
6295 so normally don't do it here. We do it if called
|
|
|
6296 from Lisp, though (`redisplay-frame'). */
|
|
|
6297 int preempted;
|
|
|
6298
|
|
|
6299 REDISPLAY_PREEMPTION_CHECK;
|
|
|
6300 if (preempted)
|
|
|
6301 return 1;
|
|
|
6302 }
|
|
|
6303
|
|
|
6304 /* Before we put a hold on frame size changes, attempt to process
|
|
|
6305 any which are already pending. */
|
|
|
6306 if (f->size_change_pending)
|
|
|
6307 change_frame_size (f, f->new_height, f->new_width, 0);
|
|
|
6308
|
|
|
6309 /* If frame size might need to be changed, due to changed size
|
|
|
6310 of toolbars, scrollbars etc, change it now */
|
|
|
6311 if (f->size_slipped)
|
|
|
6312 {
|
|
|
6313 adjust_frame_size (f);
|
|
|
6314 assert (!f->size_slipped);
|
|
|
6315 }
|
|
|
6316
|
|
|
6317 /* The menubar, toolbar, and icon updates must be done before
|
|
|
6318 hold_frame_size_changes is called and we are officially
|
|
|
6319 'in_display'. They may eval lisp code which may call Fsignal.
|
|
|
6320 If in_display is set Fsignal will abort. */
|
|
|
6321
|
|
|
6322 #ifdef HAVE_MENUBARS
|
|
|
6323 /* Update the menubar. It is done first since it could change
|
|
|
6324 the menubar's visibility. This way we avoid having flashing
|
|
|
6325 caused by an Expose event generated by the visibility change
|
|
|
6326 being handled. */
|
|
|
6327 update_frame_menubars (f);
|
|
|
6328 #endif /* HAVE_MENUBARS */
|
|
|
6329 /* widgets are similar to menus in that they can call lisp to
|
|
|
6330 determine activation etc. Therefore update them before we get
|
|
|
6331 into redisplay. This is primarily for connected widgets such as
|
|
|
6332 radio buttons. */
|
|
|
6333 update_frame_subwindows (f);
|
|
|
6334 #ifdef HAVE_TOOLBARS
|
|
|
6335 /* Update the toolbars. */
|
|
|
6336 update_frame_toolbars (f);
|
|
|
6337 #endif /* HAVE_TOOLBARS */
|
|
|
6338
|
|
|
6339 /* If we clear the frame we have to force its contents to be redrawn. */
|
|
|
6340 if (f->clear)
|
|
|
6341 f->frame_changed = 1;
|
|
|
6342
|
|
|
6343 /* invalidate the subwindow cache. We use subwindows_changed here to
|
|
|
6344 cause subwindows to get instantiated. This is because
|
|
|
6345 subwindows_state_changed is less strict - dealing with things
|
|
|
6346 like the clicked state of button. We have to do this before
|
|
|
6347 redisplaying the gutters as subwindows get unmapped in the
|
|
|
6348 process.*/
|
|
|
6349 if (!Dynarr_length (f->subwindow_cachels)
|
|
|
6350 || f->subwindows_changed
|
|
434
|
6351 || f->faces_changed
|
|
428
|
6352 || f->frame_changed)
|
|
|
6353 {
|
|
|
6354 reset_subwindow_cachels (f);
|
|
|
6355 /* we have to do this so the gutter gets regenerated. */
|
|
|
6356 reset_gutter_display_lines (f);
|
|
|
6357 }
|
|
|
6358 else
|
|
|
6359 mark_subwindow_cachels_as_not_updated (f);
|
|
|
6360 /* We can now update the gutters, safe in the knowledge that our
|
|
|
6361 efforts won't get undone. */
|
|
|
6362 update_frame_gutters (f);
|
|
|
6363
|
|
|
6364 hold_frame_size_changes ();
|
|
|
6365
|
|
|
6366 /* ----------------- BEGIN CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
6367 /* Within this section, we are defenseless and assume that the
|
|
|
6368 following cannot happen:
|
|
|
6369
|
|
|
6370 1) garbage collection
|
|
|
6371 2) Lisp code evaluation
|
|
|
6372 3) frame size changes
|
|
|
6373
|
|
|
6374 We ensure (3) by calling hold_frame_size_changes(), which
|
|
|
6375 will cause any pending frame size changes to get put on hold
|
|
|
6376 till after the end of the critical section. (1) follows
|
|
|
6377 automatically if (2) is met. #### Unfortunately, there are
|
|
|
6378 some places where Lisp code can be called within this section.
|
|
|
6379 We need to remove them.
|
|
|
6380
|
|
|
6381 If Fsignal() is called during this critical section, we
|
|
|
6382 will abort().
|
|
|
6383
|
|
|
6384 If garbage collection is called during this critical section,
|
|
|
6385 we simply return. #### We should abort instead.
|
|
|
6386
|
|
|
6387 #### If a frame-size change does occur we should probably
|
|
|
6388 actually be preempting redisplay. */
|
|
|
6389
|
|
|
6390 /* Erase the frame before outputting its contents. */
|
|
|
6391 if (f->clear)
|
|
|
6392 {
|
|
|
6393 DEVMETH (d, clear_frame, (f));
|
|
|
6394 }
|
|
|
6395
|
|
|
6396 /* Do the selected window first. */
|
|
|
6397 redisplay_window (FRAME_SELECTED_WINDOW (f), 0);
|
|
|
6398
|
|
|
6399 /* Then do the rest. */
|
|
|
6400 redisplay_windows (f->root_window, 1);
|
|
|
6401
|
|
|
6402 /* We now call the output_end routine for tty frames. We delay
|
|
|
6403 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
6404 encapsulation. */
|
|
|
6405 if (FRAME_TTY_P (f))
|
|
|
6406 DEVMETH (d, output_end, (d));
|
|
|
6407
|
|
|
6408 update_frame_title (f);
|
|
|
6409
|
|
|
6410 CLASS_RESET_CHANGED_FLAGS (f);
|
|
|
6411 f->window_face_cache_reset = 0;
|
|
|
6412 f->echo_area_garbaged = 0;
|
|
|
6413 f->clear = 0;
|
|
|
6414
|
|
|
6415 if (!f->size_change_pending)
|
|
|
6416 f->size_changed = 0;
|
|
|
6417
|
|
|
6418 /* ----------------- END CRITICAL REDISPLAY SECTION ---------------- */
|
|
|
6419
|
|
|
6420 /* Allow frame size changes to occur again.
|
|
|
6421
|
|
|
6422 #### what happens if changes to other frames happen? */
|
|
|
6423 unhold_one_frame_size_changes (f);
|
|
|
6424
|
|
|
6425 map_windows (f, call_redisplay_end_triggers, 0);
|
|
|
6426 return 0;
|
|
|
6427 }
|
|
|
6428
|
|
440
|
6429 /* Ensure that all frames on the given device are correctly displayed.
|
|
|
6430 If AUTOMATIC is non-zero, and the device implementation indicates
|
|
|
6431 no automatic redisplay, as printers do, then the device is not
|
|
|
6432 redisplayed. AUTOMATIC is set to zero when called from lisp
|
|
|
6433 functions (redraw-device) and (redisplay-device), and to non-zero
|
|
|
6434 when called from "lazy" redisplay();
|
|
|
6435 */
|
|
428
|
6436
|
|
|
6437 static int
|
|
440
|
6438 redisplay_device (struct device *d, int automatic)
|
|
428
|
6439 {
|
|
|
6440 Lisp_Object frame, frmcons;
|
|
|
6441 int preempted = 0;
|
|
|
6442 int size_change_failed = 0;
|
|
|
6443 struct frame *f;
|
|
|
6444
|
|
440
|
6445 if (automatic
|
|
|
6446 && (MAYBE_INT_DEVMETH (d, device_implementation_flags, ())
|
|
|
6447 & XDEVIMPF_NO_AUTO_REDISPLAY))
|
|
|
6448 return 0;
|
|
|
6449
|
|
428
|
6450 if (DEVICE_STREAM_P (d)) /* nothing to do */
|
|
|
6451 return 0;
|
|
|
6452
|
|
|
6453 /* It is possible that redisplay has been called before the
|
|
|
6454 device is fully initialized. If so then continue with the
|
|
|
6455 next device. */
|
|
|
6456 if (NILP (DEVICE_SELECTED_FRAME (d)))
|
|
|
6457 return 0;
|
|
|
6458
|
|
|
6459 REDISPLAY_PREEMPTION_CHECK;
|
|
|
6460 if (preempted)
|
|
|
6461 return 1;
|
|
|
6462
|
|
|
6463 /* Always do the selected frame first. */
|
|
|
6464 frame = DEVICE_SELECTED_FRAME (d);
|
|
|
6465
|
|
|
6466 f = XFRAME (frame);
|
|
|
6467
|
|
|
6468 if (f->icon_changed || f->windows_changed)
|
|
|
6469 update_frame_icon (f);
|
|
|
6470
|
|
|
6471 if (FRAME_REPAINT_P (f))
|
|
|
6472 {
|
|
|
6473 if (CLASS_REDISPLAY_FLAGS_CHANGEDP(f))
|
|
|
6474 {
|
|
|
6475 preempted = redisplay_frame (f, 0);
|
|
|
6476 }
|
|
|
6477
|
|
|
6478 if (preempted)
|
|
|
6479 return 1;
|
|
|
6480
|
|
|
6481 /* If the frame redisplay did not get preempted, then this flag
|
|
|
6482 should have gotten set to 0. It might be possible for that
|
|
|
6483 not to happen if a size change event were to occur at an odd
|
|
|
6484 time. To make sure we don't miss anything we simply don't
|
|
|
6485 reset the top level flags until the condition ends up being
|
|
|
6486 in the right state. */
|
|
|
6487 if (f->size_changed)
|
|
|
6488 size_change_failed = 1;
|
|
|
6489 }
|
|
|
6490
|
|
|
6491 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
6492 {
|
|
|
6493 f = XFRAME (XCAR (frmcons));
|
|
|
6494
|
|
|
6495 if (f == XFRAME (DEVICE_SELECTED_FRAME (d)))
|
|
|
6496 continue;
|
|
|
6497
|
|
|
6498 if (f->icon_changed || f->windows_changed)
|
|
|
6499 update_frame_icon (f);
|
|
|
6500
|
|
|
6501 if (FRAME_REPAINT_P (f))
|
|
|
6502 {
|
|
430
|
6503 if (CLASS_REDISPLAY_FLAGS_CHANGEDP (f))
|
|
428
|
6504 {
|
|
|
6505 preempted = redisplay_frame (f, 0);
|
|
|
6506 }
|
|
|
6507
|
|
|
6508 if (preempted)
|
|
|
6509 return 1;
|
|
|
6510
|
|
|
6511 if (f->size_change_pending)
|
|
|
6512 size_change_failed = 1;
|
|
|
6513 }
|
|
|
6514 }
|
|
|
6515
|
|
|
6516 /* If we get here then we redisplayed all of our frames without
|
|
|
6517 getting preempted so mark ourselves as clean. */
|
|
|
6518 CLASS_RESET_CHANGED_FLAGS (d);
|
|
|
6519
|
|
|
6520 if (!size_change_failed)
|
|
|
6521 d->size_changed = 0;
|
|
|
6522
|
|
|
6523 return 0;
|
|
|
6524 }
|
|
|
6525
|
|
|
6526 static Lisp_Object
|
|
|
6527 restore_profiling_redisplay_flag (Lisp_Object val)
|
|
|
6528 {
|
|
|
6529 profiling_redisplay_flag = XINT (val);
|
|
|
6530 return Qnil;
|
|
|
6531 }
|
|
|
6532
|
|
|
6533 /* Ensure that all windows on all frames on all devices are displaying
|
|
|
6534 the current contents of their respective buffers. */
|
|
|
6535
|
|
|
6536 static void
|
|
|
6537 redisplay_without_hooks (void)
|
|
|
6538 {
|
|
|
6539 Lisp_Object devcons, concons;
|
|
|
6540 int size_change_failed = 0;
|
|
|
6541 int count = specpdl_depth ();
|
|
|
6542
|
|
|
6543 if (profiling_active)
|
|
|
6544 {
|
|
|
6545 record_unwind_protect (restore_profiling_redisplay_flag,
|
|
|
6546 make_int (profiling_redisplay_flag));
|
|
|
6547 profiling_redisplay_flag = 1;
|
|
|
6548 }
|
|
|
6549
|
|
|
6550 if (asynch_device_change_pending)
|
|
|
6551 handle_asynch_device_change ();
|
|
|
6552
|
|
|
6553 if (!GLOBAL_REDISPLAY_FLAGS_CHANGEDP &&
|
|
430
|
6554 !disable_preemption && preemption_count < max_preempts)
|
|
428
|
6555 goto done;
|
|
|
6556
|
|
|
6557 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
6558 {
|
|
|
6559 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
6560 int preempted;
|
|
|
6561
|
|
430
|
6562 if (CLASS_REDISPLAY_FLAGS_CHANGEDP (d))
|
|
428
|
6563 {
|
|
440
|
6564 preempted = redisplay_device (d, 1);
|
|
428
|
6565
|
|
|
6566 if (preempted)
|
|
|
6567 {
|
|
|
6568 preemption_count++;
|
|
|
6569 RESET_CHANGED_SET_FLAGS;
|
|
|
6570 goto done;
|
|
|
6571 }
|
|
|
6572
|
|
|
6573 /* See comment in redisplay_device. */
|
|
|
6574 if (d->size_changed)
|
|
|
6575 size_change_failed = 1;
|
|
|
6576 }
|
|
|
6577 }
|
|
|
6578 preemption_count = 0;
|
|
|
6579
|
|
|
6580 /* Mark redisplay as accurate */
|
|
|
6581 GLOBAL_RESET_CHANGED_FLAGS;
|
|
|
6582 RESET_CHANGED_SET_FLAGS;
|
|
|
6583
|
|
|
6584 if (faces_changed)
|
|
|
6585 {
|
|
|
6586 mark_all_faces_as_clean ();
|
|
|
6587 faces_changed = 0;
|
|
|
6588 }
|
|
|
6589
|
|
|
6590 if (!size_change_failed)
|
|
|
6591 size_changed = 0;
|
|
|
6592
|
|
|
6593 reset_buffer_changes ();
|
|
|
6594
|
|
|
6595 done:
|
|
|
6596 unbind_to (count, Qnil);
|
|
|
6597 }
|
|
|
6598
|
|
|
6599 void
|
|
|
6600 redisplay (void)
|
|
|
6601 {
|
|
|
6602 if (last_display_warning_tick != display_warning_tick &&
|
|
|
6603 !inhibit_warning_display)
|
|
|
6604 {
|
|
|
6605 /* If an error occurs during this function, oh well.
|
|
|
6606 If we report another warning, we could get stuck in an
|
|
|
6607 infinite loop reporting warnings. */
|
|
|
6608 call0_trapping_errors (0, Qdisplay_warning_buffer);
|
|
|
6609 last_display_warning_tick = display_warning_tick;
|
|
|
6610 }
|
|
|
6611 /* The run_hook_trapping_errors functions are smart enough not
|
|
|
6612 to do any evalling if the hook function is empty, so there
|
|
|
6613 should not be any significant time loss. All places in the
|
|
|
6614 C code that call redisplay() are prepared to handle GCing,
|
|
|
6615 so we should be OK. */
|
|
|
6616 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
6617 run_hook_trapping_errors ("Error in pre-redisplay-hook",
|
|
|
6618 Qpre_redisplay_hook);
|
|
|
6619 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
|
6620
|
|
|
6621 redisplay_without_hooks ();
|
|
|
6622
|
|
|
6623 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
6624 run_hook_trapping_errors ("Error in post-redisplay-hook",
|
|
|
6625 Qpost_redisplay_hook);
|
|
|
6626 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
|
6627 }
|
|
|
6628
|
|
|
6629
|
|
|
6630 static char window_line_number_buf[32];
|
|
|
6631
|
|
|
6632 /* Efficiently determine the window line number, and return a pointer
|
|
|
6633 to its printed representation. Do this regardless of whether
|
|
|
6634 line-number-mode is on. The first line in the buffer is counted as
|
|
|
6635 1. If narrowing is in effect, the lines are counted from the
|
|
|
6636 beginning of the visible portion of the buffer. */
|
|
|
6637 static char *
|
|
|
6638 window_line_number (struct window *w, int type)
|
|
|
6639 {
|
|
|
6640 struct device *d = XDEVICE (XFRAME (w->frame)->device);
|
|
|
6641 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6642 /* Be careful in the order of these tests. The first clause will
|
|
|
6643 fail if DEVICE_SELECTED_FRAME == Qnil (since w->frame cannot be).
|
|
|
6644 This can occur when the frame title is computed really early */
|
|
|
6645 Bufpos pos =
|
|
|
6646 ((EQ(DEVICE_SELECTED_FRAME(d), w->frame) &&
|
|
|
6647 (w == XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame(d)))) &&
|
|
|
6648 EQ(DEVICE_CONSOLE(d), Vselected_console) &&
|
|
|
6649 XDEVICE(CONSOLE_SELECTED_DEVICE(XCONSOLE(DEVICE_CONSOLE(d)))) == d )
|
|
|
6650 ? BUF_PT (b)
|
|
|
6651 : marker_position (w->pointm[type]));
|
|
|
6652 EMACS_INT line;
|
|
|
6653
|
|
|
6654 line = buffer_line_number (b, pos, 1);
|
|
|
6655
|
|
|
6656 long_to_string (window_line_number_buf, line + 1);
|
|
|
6657
|
|
|
6658 return window_line_number_buf;
|
|
|
6659 }
|
|
|
6660
|
|
|
6661
|
|
|
6662 /* Given a character representing an object in a modeline
|
|
|
6663 specification, return a string (stored into the global array
|
|
|
6664 `mode_spec_bufbyte_string') with the information that object
|
|
|
6665 represents.
|
|
|
6666
|
|
|
6667 This function is largely unchanged from previous versions of the
|
|
|
6668 redisplay engine.
|
|
|
6669
|
|
|
6670 Warning! This code is also used for frame titles and can be called
|
|
|
6671 very early in the device/frame update process! JV
|
|
|
6672 */
|
|
|
6673
|
|
|
6674 static void
|
|
|
6675 decode_mode_spec (struct window *w, Emchar spec, int type)
|
|
|
6676 {
|
|
|
6677 Lisp_Object obj = Qnil;
|
|
|
6678 CONST char *str = NULL;
|
|
|
6679 struct buffer *b = XBUFFER (w->buffer);
|
|
|
6680
|
|
|
6681 Dynarr_reset (mode_spec_bufbyte_string);
|
|
|
6682
|
|
|
6683 switch (spec)
|
|
|
6684 {
|
|
|
6685 /* print buffer name */
|
|
|
6686 case 'b':
|
|
|
6687 obj = b->name;
|
|
|
6688 break;
|
|
|
6689
|
|
|
6690 /* print visited file name */
|
|
|
6691 case 'f':
|
|
|
6692 obj = b->filename;
|
|
|
6693 break;
|
|
|
6694
|
|
|
6695 /* print the current column */
|
|
|
6696 case 'c':
|
|
|
6697 {
|
|
|
6698 Bufpos pt = (w == XWINDOW (Fselected_window (Qnil)))
|
|
|
6699 ? BUF_PT (b)
|
|
|
6700 : marker_position (w->pointm[type]);
|
|
|
6701 int col = column_at_point (b, pt, 1) + !!column_number_start_at_one;
|
|
|
6702 char buf[32];
|
|
|
6703
|
|
|
6704 long_to_string (buf, col);
|
|
|
6705
|
|
|
6706 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
|
6707 (CONST Bufbyte *) buf, strlen (buf));
|
|
|
6708
|
|
|
6709 goto decode_mode_spec_done;
|
|
|
6710 }
|
|
|
6711 /* print the file coding system */
|
|
|
6712 case 'C':
|
|
|
6713 #ifdef FILE_CODING
|
|
|
6714 {
|
|
|
6715 Lisp_Object codesys = b->buffer_file_coding_system;
|
|
|
6716 /* Be very careful here not to get an error. */
|
|
|
6717 if (NILP (codesys) || SYMBOLP (codesys) || CODING_SYSTEMP (codesys))
|
|
|
6718 {
|
|
|
6719 codesys = Ffind_coding_system (codesys);
|
|
|
6720 if (CODING_SYSTEMP (codesys))
|
|
|
6721 obj = XCODING_SYSTEM_MNEMONIC (codesys);
|
|
|
6722 }
|
|
|
6723 }
|
|
|
6724 #endif /* FILE_CODING */
|
|
|
6725 break;
|
|
|
6726
|
|
|
6727 /* print the current line number */
|
|
|
6728 case 'l':
|
|
|
6729 str = window_line_number (w, type);
|
|
|
6730 break;
|
|
|
6731
|
|
|
6732 /* print value of mode-name (obsolete) */
|
|
|
6733 case 'm':
|
|
|
6734 obj = b->mode_name;
|
|
|
6735 break;
|
|
|
6736
|
|
|
6737 /* print hyphen and frame number, if != 1 */
|
|
|
6738 case 'N':
|
|
|
6739 #ifdef HAVE_TTY
|
|
|
6740 {
|
|
|
6741 struct frame *f = XFRAME (w->frame);
|
|
|
6742 if (FRAME_TTY_P (f) && f->order_count > 1 && f->order_count <= 99999999)
|
|
|
6743 {
|
|
|
6744 /* Naughty, naughty */
|
|
|
6745 char * writable_str = alloca_array (char, 10);
|
|
|
6746 sprintf (writable_str, "-%d", f->order_count);
|
|
|
6747 str = writable_str;
|
|
|
6748 }
|
|
|
6749 }
|
|
|
6750 #endif /* HAVE_TTY */
|
|
|
6751 break;
|
|
|
6752
|
|
|
6753 /* print Narrow if appropriate */
|
|
|
6754 case 'n':
|
|
|
6755 if (BUF_BEGV (b) > BUF_BEG (b)
|
|
|
6756 || BUF_ZV (b) < BUF_Z (b))
|
|
|
6757 str = " Narrow";
|
|
|
6758 break;
|
|
|
6759
|
|
|
6760 /* print %, * or hyphen, if buffer is read-only, modified or neither */
|
|
|
6761 case '*':
|
|
|
6762 str = (!NILP (b->read_only)
|
|
|
6763 ? "%"
|
|
|
6764 : ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
6765 ? "*"
|
|
|
6766 : "-"));
|
|
|
6767 break;
|
|
|
6768
|
|
|
6769 /* print * or hyphen -- XEmacs change to allow a buffer to be
|
|
|
6770 read-only but still indicate whether it is modified. */
|
|
|
6771 case '+':
|
|
|
6772 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
6773 ? "*"
|
|
|
6774 : (!NILP (b->read_only)
|
|
|
6775 ? "%"
|
|
|
6776 : "-"));
|
|
|
6777 break;
|
|
|
6778
|
|
|
6779 /* #### defined in 19.29 decode_mode_spec, but not in
|
|
|
6780 modeline-format doc string. */
|
|
|
6781 /* This differs from %* in that it ignores read-only-ness. */
|
|
|
6782 case '&':
|
|
|
6783 str = ((BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
|
|
|
6784 ? "*"
|
|
|
6785 : "-");
|
|
|
6786 break;
|
|
|
6787
|
|
|
6788 /* print process status */
|
|
|
6789 case 's':
|
|
|
6790 obj = Fget_buffer_process (w->buffer);
|
|
|
6791 if (NILP (obj))
|
|
|
6792 str = GETTEXT ("no process");
|
|
|
6793 else
|
|
|
6794 obj = Fsymbol_name (Fprocess_status (obj));
|
|
|
6795 break;
|
|
|
6796
|
|
|
6797 /* Print name of selected frame. */
|
|
|
6798 case 'S':
|
|
|
6799 obj = XFRAME (w->frame)->name;
|
|
|
6800 break;
|
|
|
6801
|
|
|
6802 /* indicate TEXT or BINARY */
|
|
|
6803 case 't':
|
|
|
6804 /* #### NT does not use this any more. Now what? */
|
|
|
6805 str = "T";
|
|
|
6806 break;
|
|
|
6807
|
|
|
6808 /* print percent of buffer above top of window, or Top, Bot or All */
|
|
|
6809 case 'p':
|
|
|
6810 {
|
|
|
6811 Bufpos pos = marker_position (w->start[type]);
|
|
|
6812
|
|
|
6813 /* This had better be while the desired lines are being done. */
|
|
|
6814 if (w->window_end_pos[type] <= BUF_Z (b) - BUF_ZV (b))
|
|
|
6815 {
|
|
|
6816 if (pos <= BUF_BEGV (b))
|
|
|
6817 str = "All";
|
|
|
6818 else
|
|
|
6819 str = "Bottom";
|
|
|
6820 }
|
|
|
6821 else if (pos <= BUF_BEGV (b))
|
|
|
6822 str = "Top";
|
|
|
6823 else
|
|
|
6824 {
|
|
|
6825 /* This hard limit is ok since the string it will hold has a
|
|
|
6826 fixed maximum length of 3. But just to be safe... */
|
|
|
6827 char buf[10];
|
|
|
6828 Charcount chars = pos - BUF_BEGV (b);
|
|
|
6829 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
6830
|
|
|
6831 /* Avoid overflow on big buffers */
|
|
|
6832 int percent = total > LONG_MAX/200 ?
|
|
|
6833 (chars + total/200) / (total / 100) :
|
|
|
6834 (chars * 100 + total/2) / total;
|
|
|
6835
|
|
|
6836 /* We can't normally display a 3-digit number, so get us a
|
|
|
6837 2-digit number that is close. */
|
|
|
6838 if (percent == 100)
|
|
|
6839 percent = 99;
|
|
|
6840
|
|
|
6841 sprintf (buf, "%d%%", percent);
|
|
|
6842 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) buf,
|
|
|
6843 strlen (buf));
|
|
|
6844
|
|
|
6845 goto decode_mode_spec_done;
|
|
|
6846 }
|
|
|
6847 break;
|
|
|
6848 }
|
|
|
6849
|
|
|
6850 /* print percent of buffer above bottom of window, perhaps plus
|
|
|
6851 Top, or print Bottom or All */
|
|
|
6852 case 'P':
|
|
|
6853 {
|
|
|
6854 Bufpos toppos = marker_position (w->start[type]);
|
|
|
6855 Bufpos botpos = BUF_Z (b) - w->window_end_pos[type];
|
|
|
6856
|
|
|
6857 /* botpos is only accurate as of the last redisplay, so we can
|
|
|
6858 only treat it as a hint. In particular, after erase-buffer,
|
|
|
6859 botpos may be negative. */
|
|
|
6860 if (botpos < toppos)
|
|
|
6861 botpos = toppos;
|
|
|
6862
|
|
|
6863 if (botpos >= BUF_ZV (b))
|
|
|
6864 {
|
|
|
6865 if (toppos <= BUF_BEGV (b))
|
|
|
6866 str = "All";
|
|
|
6867 else
|
|
|
6868 str = "Bottom";
|
|
|
6869 }
|
|
|
6870 else
|
|
|
6871 {
|
|
|
6872 /* This hard limit is ok since the string it will hold has a
|
|
|
6873 fixed maximum length of around 6. But just to be safe... */
|
|
|
6874 char buf[10];
|
|
|
6875 Charcount chars = botpos - BUF_BEGV (b);
|
|
|
6876 Charcount total = BUF_ZV (b) - BUF_BEGV (b);
|
|
|
6877
|
|
|
6878 /* Avoid overflow on big buffers */
|
|
|
6879 int percent = total > LONG_MAX/200 ?
|
|
|
6880 (chars + total/200) / (total / 100) :
|
|
|
6881 (chars * 100 + total/2) / max (total, 1);
|
|
|
6882
|
|
|
6883 /* We can't normally display a 3-digit number, so get us a
|
|
|
6884 2-digit number that is close. */
|
|
|
6885 if (percent == 100)
|
|
|
6886 percent = 99;
|
|
|
6887
|
|
|
6888 if (toppos <= BUF_BEGV (b))
|
|
|
6889 sprintf (buf, "Top%d%%", percent);
|
|
|
6890 else
|
|
|
6891 sprintf (buf, "%d%%", percent);
|
|
|
6892
|
|
|
6893 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) buf,
|
|
|
6894 strlen (buf));
|
|
|
6895
|
|
|
6896 goto decode_mode_spec_done;
|
|
|
6897 }
|
|
|
6898 break;
|
|
|
6899 }
|
|
|
6900
|
|
|
6901 /* print % */
|
|
|
6902 case '%':
|
|
|
6903 str = "%";
|
|
|
6904 break;
|
|
|
6905
|
|
|
6906 /* print one [ for each recursive editing level. */
|
|
|
6907 case '[':
|
|
|
6908 {
|
|
|
6909 int i;
|
|
|
6910
|
|
|
6911 if (command_loop_level > 5)
|
|
|
6912 {
|
|
|
6913 str = "[[[... ";
|
|
|
6914 break;
|
|
|
6915 }
|
|
|
6916
|
|
|
6917 for (i = 0; i < command_loop_level; i++)
|
|
|
6918 Dynarr_add (mode_spec_bufbyte_string, '[');
|
|
|
6919
|
|
|
6920 goto decode_mode_spec_done;
|
|
|
6921 }
|
|
|
6922
|
|
|
6923 /* print one ] for each recursive editing level. */
|
|
|
6924 case ']':
|
|
|
6925 {
|
|
|
6926 int i;
|
|
|
6927
|
|
|
6928 if (command_loop_level > 5)
|
|
|
6929 {
|
|
|
6930 str = "...]]]";
|
|
|
6931 break;
|
|
|
6932 }
|
|
|
6933
|
|
|
6934 for (i = 0; i < command_loop_level; i++)
|
|
|
6935 Dynarr_add (mode_spec_bufbyte_string, ']');
|
|
|
6936
|
|
|
6937 goto decode_mode_spec_done;
|
|
|
6938 }
|
|
|
6939
|
|
|
6940 /* print infinitely many dashes -- handle at top level now */
|
|
|
6941 case '-':
|
|
|
6942 break;
|
|
|
6943
|
|
|
6944 }
|
|
|
6945
|
|
|
6946 if (STRINGP (obj))
|
|
|
6947 Dynarr_add_many (mode_spec_bufbyte_string,
|
|
|
6948 XSTRING_DATA (obj),
|
|
|
6949 XSTRING_LENGTH (obj));
|
|
|
6950 else if (str)
|
|
|
6951 Dynarr_add_many (mode_spec_bufbyte_string, (Bufbyte *) str, strlen (str));
|
|
|
6952
|
|
|
6953 decode_mode_spec_done:
|
|
|
6954 Dynarr_add (mode_spec_bufbyte_string, '\0');
|
|
|
6955 }
|
|
|
6956
|
|
|
6957 /* Given a display line, free all of its data structures. */
|
|
|
6958
|
|
|
6959 static void
|
|
|
6960 free_display_line (struct display_line *dl)
|
|
|
6961 {
|
|
|
6962 int block;
|
|
|
6963
|
|
|
6964 if (dl->display_blocks)
|
|
|
6965 {
|
|
|
6966 for (block = 0; block < Dynarr_largest (dl->display_blocks); block++)
|
|
|
6967 {
|
|
|
6968 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
|
|
|
6969
|
|
|
6970 Dynarr_free (db->runes);
|
|
|
6971 }
|
|
|
6972
|
|
|
6973 Dynarr_free (dl->display_blocks);
|
|
|
6974 dl->display_blocks = NULL;
|
|
|
6975 }
|
|
|
6976
|
|
|
6977 if (dl->left_glyphs)
|
|
|
6978 {
|
|
|
6979 Dynarr_free (dl->left_glyphs);
|
|
|
6980 dl->left_glyphs = NULL;
|
|
|
6981 }
|
|
|
6982
|
|
|
6983 if (dl->right_glyphs)
|
|
|
6984 {
|
|
|
6985 Dynarr_free (dl->right_glyphs);
|
|
|
6986 dl->right_glyphs = NULL;
|
|
|
6987 }
|
|
|
6988 }
|
|
|
6989
|
|
|
6990
|
|
|
6991 /* Given an array of display lines, free them and all data structures
|
|
|
6992 contained within them. */
|
|
|
6993
|
|
|
6994 void
|
|
|
6995 free_display_lines (display_line_dynarr *dla)
|
|
|
6996 {
|
|
|
6997 int line;
|
|
|
6998
|
|
|
6999 for (line = 0; line < Dynarr_largest (dla); line++)
|
|
|
7000 {
|
|
|
7001 free_display_line (Dynarr_atp (dla, line));
|
|
|
7002 }
|
|
|
7003
|
|
|
7004 Dynarr_free (dla);
|
|
|
7005 }
|
|
|
7006
|
|
|
7007 /* Call internal free routine for each set of display lines. */
|
|
|
7008
|
|
|
7009 void
|
|
|
7010 free_display_structs (struct window_mirror *mir)
|
|
|
7011 {
|
|
|
7012 if (mir->current_display_lines)
|
|
|
7013 {
|
|
|
7014 free_display_lines (mir->current_display_lines);
|
|
|
7015 mir->current_display_lines = 0;
|
|
|
7016 }
|
|
|
7017
|
|
|
7018 if (mir->desired_display_lines)
|
|
|
7019 {
|
|
|
7020 free_display_lines (mir->desired_display_lines);
|
|
|
7021 mir->desired_display_lines = 0;
|
|
|
7022 }
|
|
|
7023 }
|
|
|
7024
|
|
|
7025
|
|
|
7026 static void
|
|
|
7027 mark_glyph_block_dynarr (glyph_block_dynarr *gba)
|
|
|
7028 {
|
|
|
7029 if (gba)
|
|
|
7030 {
|
|
|
7031 glyph_block *gb = Dynarr_atp (gba, 0);
|
|
|
7032 glyph_block *gb_last = Dynarr_atp (gba, Dynarr_length (gba));
|
|
|
7033
|
|
|
7034 for (; gb < gb_last; gb++)
|
|
|
7035 {
|
|
|
7036 if (!NILP (gb->glyph))
|
|
|
7037 mark_object (gb->glyph);
|
|
|
7038 if (!NILP (gb->extent))
|
|
|
7039 mark_object (gb->extent);
|
|
|
7040 }
|
|
|
7041 }
|
|
|
7042 }
|
|
|
7043
|
|
|
7044 static void
|
|
|
7045 mark_redisplay_structs (display_line_dynarr *dla)
|
|
|
7046 {
|
|
|
7047 display_line *dl = Dynarr_atp (dla, 0);
|
|
|
7048 display_line *dl_last = Dynarr_atp (dla, Dynarr_length (dla));
|
|
|
7049
|
|
|
7050 for (; dl < dl_last; dl++)
|
|
|
7051 {
|
|
|
7052 display_block_dynarr *dba = dl->display_blocks;
|
|
|
7053 display_block *db = Dynarr_atp (dba, 0);
|
|
|
7054 display_block *db_last = Dynarr_atp (dba, Dynarr_length (dba));
|
|
|
7055
|
|
|
7056 for (; db < db_last; db++)
|
|
|
7057 {
|
|
|
7058 rune_dynarr *ra = db->runes;
|
|
|
7059 rune *r = Dynarr_atp (ra, 0);
|
|
|
7060 rune *r_last = Dynarr_atp (ra, Dynarr_length (ra));
|
|
|
7061
|
|
|
7062 for (; r < r_last; r++)
|
|
|
7063 {
|
|
|
7064 if (r->type == RUNE_DGLYPH)
|
|
|
7065 {
|
|
|
7066 if (!NILP (r->object.dglyph.glyph))
|
|
|
7067 mark_object (r->object.dglyph.glyph);
|
|
|
7068 if (!NILP (r->object.dglyph.extent))
|
|
|
7069 mark_object (r->object.dglyph.extent);
|
|
|
7070 }
|
|
|
7071 }
|
|
|
7072 }
|
|
|
7073
|
|
|
7074 mark_glyph_block_dynarr (dl->left_glyphs);
|
|
|
7075 mark_glyph_block_dynarr (dl->right_glyphs);
|
|
|
7076 }
|
|
|
7077 }
|
|
|
7078
|
|
|
7079 static void
|
|
|
7080 mark_window_mirror (struct window_mirror *mir)
|
|
|
7081 {
|
|
|
7082 mark_redisplay_structs (mir->current_display_lines);
|
|
|
7083 mark_redisplay_structs (mir->desired_display_lines);
|
|
|
7084
|
|
|
7085 if (mir->next)
|
|
|
7086 mark_window_mirror (mir->next);
|
|
|
7087
|
|
|
7088 if (mir->hchild)
|
|
|
7089 mark_window_mirror (mir->hchild);
|
|
|
7090 else if (mir->vchild)
|
|
|
7091 mark_window_mirror (mir->vchild);
|
|
|
7092 }
|
|
|
7093
|
|
|
7094 void
|
|
|
7095 mark_redisplay (void)
|
|
|
7096 {
|
|
|
7097 Lisp_Object frmcons, devcons, concons;
|
|
|
7098
|
|
|
7099 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
7100 {
|
|
|
7101 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
7102 update_frame_window_mirror (f);
|
|
|
7103 mark_window_mirror (f->root_mirror);
|
|
|
7104 }
|
|
|
7105 }
|
|
|
7106
|
|
|
7107 /*****************************************************************************
|
|
|
7108 Line Start Cache Description and Rationale
|
|
|
7109
|
|
|
7110 The traditional scrolling code in Emacs breaks in a variable height world.
|
|
|
7111 It depends on the key assumption that the number of lines that can be
|
|
|
7112 displayed at any given time is fixed. This led to a complete separation
|
|
|
7113 of the scrolling code from the redisplay code. In order to fully support
|
|
|
7114 variable height lines, the scrolling code must actually be tightly
|
|
|
7115 integrated with redisplay. Only redisplay can determine how many lines
|
|
|
7116 will be displayed on a screen for any given starting point.
|
|
|
7117
|
|
|
7118 What is ideally wanted is a complete list of the starting buffer position
|
|
|
7119 for every possible display line of a buffer along with the height of that
|
|
|
7120 display line. Maintaining such a full list would be very expensive. We
|
|
|
7121 settle for having it include information for all areas which we happen to
|
|
|
7122 generate anyhow (i.e. the region currently being displayed) and for those
|
|
|
7123 areas we need to work with.
|
|
|
7124
|
|
|
7125 In order to ensure that the cache accurately represents what redisplay
|
|
|
7126 would actually show, it is necessary to invalidate it in many situations.
|
|
|
7127 If the buffer changes, the starting positions may no longer be correct.
|
|
|
7128 If a face or an extent has changed then the line heights may have altered.
|
|
|
7129 These events happen frequently enough that the cache can end up being
|
|
|
7130 constantly disabled. With this potentially constant invalidation when is
|
|
|
7131 the cache ever useful?
|
|
|
7132
|
|
|
7133 Even if the cache is invalidated before every single usage, it is
|
|
|
7134 necessary. Scrolling often requires knowledge about display lines which
|
|
|
7135 are actually above or below the visible region. The cache provides a
|
|
|
7136 convenient light-weight method of storing this information for multiple
|
|
|
7137 display regions. This knowledge is necessary for the scrolling code to
|
|
|
7138 always obey the First Golden Rule of Redisplay.
|
|
|
7139
|
|
|
7140 If the cache already contains all of the information that the scrolling
|
|
|
7141 routines happen to need so that it doesn't have to go generate it, then we
|
|
|
7142 are able to obey the Third Golden Rule of Redisplay. The first thing we
|
|
|
7143 do to help out the cache is to always add the displayed region. This
|
|
|
7144 region had to be generated anyway, so the cache ends up getting the
|
|
|
7145 information basically for free. In those cases where a user is simply
|
|
|
7146 scrolling around viewing a buffer there is a high probability that this is
|
|
|
7147 sufficient to always provide the needed information. The second thing we
|
|
|
7148 can do is be smart about invalidating the cache.
|
|
|
7149
|
|
|
7150 TODO -- Be smart about invalidating the cache. Potential places:
|
|
|
7151
|
|
|
7152 + Insertions at end-of-line which don't cause line-wraps do not alter the
|
|
|
7153 starting positions of any display lines. These types of buffer
|
|
|
7154 modifications should not invalidate the cache. This is actually a large
|
|
|
7155 optimization for redisplay speed as well.
|
|
|
7156
|
|
|
7157 + Buffer modifications frequently only affect the display of lines at and
|
|
|
7158 below where they occur. In these situations we should only invalidate
|
|
|
7159 the part of the cache starting at where the modification occurs.
|
|
|
7160
|
|
|
7161 In case you're wondering, the Second Golden Rule of Redisplay is not
|
|
|
7162 applicable.
|
|
|
7163 ****************************************************************************/
|
|
|
7164
|
|
|
7165 /* This will get used quite a bit so we don't want to be constantly
|
|
|
7166 allocating and freeing it. */
|
|
|
7167 static line_start_cache_dynarr *internal_cache;
|
|
|
7168
|
|
|
7169 /* Makes internal_cache represent the TYPE display structs and only
|
|
|
7170 the TYPE display structs. */
|
|
|
7171
|
|
|
7172 static void
|
|
|
7173 update_internal_cache_list (struct window *w, int type)
|
|
|
7174 {
|
|
|
7175 int line;
|
|
|
7176 display_line_dynarr *dla = window_display_lines (w, type);
|
|
|
7177
|
|
|
7178 Dynarr_reset (internal_cache);
|
|
|
7179 for (line = 0; line < Dynarr_length (dla); line++)
|
|
|
7180 {
|
|
|
7181 struct display_line *dl = Dynarr_atp (dla, line);
|
|
|
7182
|
|
|
7183 if (dl->modeline)
|
|
|
7184 continue;
|
|
|
7185 else
|
|
|
7186 {
|
|
|
7187 struct line_start_cache lsc;
|
|
434
|
7188
|
|
428
|
7189 lsc.start = dl->bufpos;
|
|
|
7190 lsc.end = dl->end_bufpos;
|
|
|
7191 lsc.height = dl->ascent + dl->descent;
|
|
|
7192
|
|
|
7193 Dynarr_add (internal_cache, lsc);
|
|
|
7194 }
|
|
|
7195 }
|
|
|
7196 }
|
|
|
7197
|
|
|
7198 /* Reset the line cache if necessary. This should be run at the
|
|
|
7199 beginning of any function which access the cache. */
|
|
|
7200
|
|
|
7201 static void
|
|
|
7202 validate_line_start_cache (struct window *w)
|
|
|
7203 {
|
|
|
7204 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7205 struct frame *f = XFRAME (w->frame);
|
|
|
7206
|
|
|
7207 if (!w->line_cache_validation_override)
|
|
|
7208 {
|
|
|
7209 /* f->extents_changed used to be in here because extent face and
|
|
|
7210 size changes can cause text shifting. However, the extent
|
|
|
7211 covering the region is constantly having its face set and
|
|
|
7212 priority altered by the mouse code. This means that the line
|
|
|
7213 start cache is constantly being invalidated. This is bad
|
|
|
7214 since the mouse code also triggers heavy usage of the cache.
|
|
|
7215 Since it is an unlikely that f->extents being changed
|
|
|
7216 indicates that the cache really needs to be updated and if it
|
|
|
7217 does redisplay will catch it pretty quickly we no longer
|
|
|
7218 invalidate the cache if it is set. This greatly speeds up
|
|
|
7219 dragging out regions with the mouse. */
|
|
|
7220 if (XINT (w->line_cache_last_updated) < BUF_MODIFF (b)
|
|
|
7221 || f->faces_changed
|
|
|
7222 || f->clip_changed)
|
|
|
7223 {
|
|
|
7224 Dynarr_reset (w->line_start_cache);
|
|
|
7225 }
|
|
|
7226 }
|
|
|
7227 }
|
|
|
7228
|
|
|
7229 /* Return the very first buffer position contained in the given
|
|
|
7230 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
7231 cache is valid. */
|
|
|
7232
|
|
|
7233 static Bufpos
|
|
|
7234 line_start_cache_start (struct window *w)
|
|
|
7235 {
|
|
|
7236 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7237
|
|
|
7238 if (!Dynarr_length (cache))
|
|
|
7239 return -1;
|
|
|
7240 else
|
|
|
7241 return Dynarr_atp (cache, 0)->start;
|
|
|
7242 }
|
|
|
7243
|
|
|
7244 /* Return the very last buffer position contained in the given
|
|
|
7245 window's cache, or -1 if the cache is empty. Assumes that the
|
|
|
7246 cache is valid. */
|
|
|
7247
|
|
|
7248 static Bufpos
|
|
|
7249 line_start_cache_end (struct window *w)
|
|
|
7250 {
|
|
|
7251 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7252
|
|
|
7253 if (!Dynarr_length (cache))
|
|
|
7254 return -1;
|
|
|
7255 else
|
|
|
7256 return Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
7257 }
|
|
|
7258
|
|
|
7259 /* Return the index of the line POINT is contained within in window
|
|
|
7260 W's line start cache. It will enlarge the cache or move the cache
|
|
|
7261 window in order to have POINT be present in the cache. MIN_PAST is
|
|
|
7262 a guarantee of the number of entries in the cache present on either
|
|
|
7263 side of POINT (unless a buffer boundary is hit). If MIN_PAST is -1
|
|
|
7264 then it will be treated as 0, but the cache window will not be
|
|
|
7265 allowed to shift. Returns -1 if POINT cannot be found in the cache
|
|
|
7266 for any reason. */
|
|
|
7267
|
|
|
7268 int
|
|
|
7269 point_in_line_start_cache (struct window *w, Bufpos point, int min_past)
|
|
|
7270 {
|
|
|
7271 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7272 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7273 unsigned int top, bottom, pos;
|
|
|
7274
|
|
|
7275 validate_line_start_cache (w);
|
|
|
7276 w->line_cache_validation_override++;
|
|
|
7277
|
|
|
7278 /* Let functions pass in negative values, but we still treat -1
|
|
|
7279 specially. */
|
|
|
7280 /* #### bogosity alert */
|
|
|
7281 if (min_past < 0 && min_past != -1)
|
|
|
7282 min_past = -min_past;
|
|
|
7283
|
|
|
7284 if (!Dynarr_length (cache) || line_start_cache_start (w) > point
|
|
|
7285 || line_start_cache_end (w) < point)
|
|
|
7286 {
|
|
|
7287 int loop;
|
|
|
7288 int win_char_height = window_char_height (w, 1);
|
|
|
7289
|
|
|
7290 /* Occasionally we get here with a 0 height
|
|
|
7291 window. find_next_newline_no_quit will abort if we pass it a
|
|
|
7292 count of 0 so handle that case. */
|
|
|
7293 if (!win_char_height)
|
|
|
7294 win_char_height = 1;
|
|
|
7295
|
|
|
7296 if (!Dynarr_length (cache))
|
|
|
7297 {
|
|
|
7298 Bufpos from = find_next_newline_no_quit (b, point, -1);
|
|
|
7299 Bufpos to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7300
|
|
|
7301 update_line_start_cache (w, from, to, point, 0);
|
|
|
7302
|
|
|
7303 if (!Dynarr_length (cache))
|
|
|
7304 {
|
|
|
7305 w->line_cache_validation_override--;
|
|
|
7306 return -1;
|
|
|
7307 }
|
|
|
7308 }
|
|
|
7309
|
|
|
7310 assert (Dynarr_length (cache));
|
|
|
7311
|
|
|
7312 loop = 0;
|
|
|
7313 while (line_start_cache_start (w) > point
|
|
|
7314 && (loop < cache_adjustment || min_past == -1))
|
|
|
7315 {
|
|
|
7316 Bufpos from, to;
|
|
|
7317
|
|
|
7318 from = line_start_cache_start (w);
|
|
|
7319 if (from <= BUF_BEGV (b))
|
|
|
7320 break;
|
|
|
7321
|
|
|
7322 from = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7323 to = line_start_cache_end (w);
|
|
|
7324
|
|
|
7325 update_line_start_cache (w, from, to, point, 0);
|
|
|
7326 loop++;
|
|
|
7327 }
|
|
|
7328
|
|
|
7329 if (line_start_cache_start (w) > point)
|
|
|
7330 {
|
|
|
7331 Bufpos from, to;
|
|
|
7332
|
|
|
7333 from = find_next_newline_no_quit (b, point, -1);
|
|
|
7334 if (from >= BUF_ZV (b))
|
|
|
7335 {
|
|
|
7336 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7337 from = to;
|
|
|
7338 to = BUF_ZV (b);
|
|
|
7339 }
|
|
|
7340 else
|
|
|
7341 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7342
|
|
|
7343 update_line_start_cache (w, from, to, point, 0);
|
|
|
7344 }
|
|
|
7345
|
|
|
7346 loop = 0;
|
|
|
7347 while (line_start_cache_end (w) < point
|
|
|
7348 && (loop < cache_adjustment || min_past == -1))
|
|
|
7349 {
|
|
|
7350 Bufpos from, to;
|
|
|
7351
|
|
|
7352 to = line_start_cache_end (w);
|
|
|
7353 if (to >= BUF_ZV (b))
|
|
|
7354 break;
|
|
|
7355
|
|
|
7356 from = line_start_cache_end (w);
|
|
|
7357 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7358
|
|
|
7359 update_line_start_cache (w, from, to, point, 0);
|
|
|
7360 loop++;
|
|
|
7361 }
|
|
|
7362
|
|
|
7363 if (line_start_cache_end (w) < point)
|
|
|
7364 {
|
|
|
7365 Bufpos from, to;
|
|
|
7366
|
|
|
7367 from = find_next_newline_no_quit (b, point, -1);
|
|
|
7368 if (from >= BUF_ZV (b))
|
|
|
7369 {
|
|
|
7370 to = find_next_newline_no_quit (b, from, -win_char_height);
|
|
|
7371 from = to;
|
|
|
7372 to = BUF_ZV (b);
|
|
|
7373 }
|
|
|
7374 else
|
|
|
7375 to = find_next_newline_no_quit (b, from, win_char_height);
|
|
|
7376
|
|
|
7377 update_line_start_cache (w, from, to, point, 0);
|
|
|
7378 }
|
|
|
7379 }
|
|
|
7380
|
|
|
7381 assert (Dynarr_length (cache));
|
|
|
7382
|
|
|
7383 if (min_past == -1)
|
|
|
7384 min_past = 0;
|
|
|
7385
|
|
|
7386 /* This could happen if the buffer is narrowed. */
|
|
|
7387 if (line_start_cache_start (w) > point
|
|
|
7388 || line_start_cache_end (w) < point)
|
|
|
7389 {
|
|
|
7390 w->line_cache_validation_override--;
|
|
|
7391 return -1;
|
|
|
7392 }
|
|
|
7393
|
|
|
7394 find_point_loop:
|
|
|
7395
|
|
|
7396 top = Dynarr_length (cache) - 1;
|
|
|
7397 bottom = 0;
|
|
|
7398
|
|
|
7399 while (1)
|
|
|
7400 {
|
|
|
7401 unsigned int new_pos;
|
|
|
7402 Bufpos start, end;
|
|
|
7403
|
|
|
7404 pos = (bottom + top + 1) >> 1;
|
|
|
7405 start = Dynarr_atp (cache, pos)->start;
|
|
|
7406 end = Dynarr_atp (cache, pos)->end;
|
|
|
7407
|
|
|
7408 if (point >= start && point <= end)
|
|
|
7409 {
|
|
|
7410 if (pos < min_past && line_start_cache_start (w) > BUF_BEGV (b))
|
|
|
7411 {
|
|
|
7412 Bufpos from =
|
|
|
7413 find_next_newline_no_quit (b, line_start_cache_start (w),
|
|
|
7414 -min_past - 1);
|
|
|
7415 Bufpos to = line_start_cache_end (w);
|
|
|
7416
|
|
|
7417 update_line_start_cache (w, from, to, point, 0);
|
|
|
7418 goto find_point_loop;
|
|
|
7419 }
|
|
|
7420 else if ((Dynarr_length (cache) - pos - 1) < min_past
|
|
|
7421 && line_start_cache_end (w) < BUF_ZV (b))
|
|
|
7422 {
|
|
|
7423 Bufpos from = line_start_cache_end (w);
|
|
|
7424 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
7425 (min_past
|
|
|
7426 ? min_past
|
|
|
7427 : 1));
|
|
|
7428
|
|
|
7429 update_line_start_cache (w, from, to, point, 0);
|
|
|
7430 goto find_point_loop;
|
|
|
7431 }
|
|
|
7432 else
|
|
|
7433 {
|
|
|
7434 w->line_cache_validation_override--;
|
|
|
7435 return pos;
|
|
|
7436 }
|
|
|
7437 }
|
|
|
7438 else if (point > end)
|
|
|
7439 bottom = pos + 1;
|
|
|
7440 else if (point < start)
|
|
|
7441 top = pos - 1;
|
|
|
7442 else
|
|
|
7443 abort ();
|
|
|
7444
|
|
|
7445 new_pos = (bottom + top + 1) >> 1;
|
|
|
7446 if (pos == new_pos)
|
|
|
7447 {
|
|
|
7448 w->line_cache_validation_override--;
|
|
|
7449 return -1;
|
|
|
7450 }
|
|
|
7451 }
|
|
|
7452 }
|
|
|
7453
|
|
|
7454 /* Return a boolean indicating if POINT would be visible in window W
|
|
|
7455 if display of the window was to begin at STARTP. */
|
|
|
7456
|
|
|
7457 int
|
|
|
7458 point_would_be_visible (struct window *w, Bufpos startp, Bufpos point)
|
|
|
7459 {
|
|
|
7460 struct buffer *b = XBUFFER (w->buffer);
|
|
430
|
7461 int pixpos = -WINDOW_TEXT_TOP_CLIP(w);
|
|
428
|
7462 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
7463 int start_elt;
|
|
|
7464
|
|
|
7465 /* If point is before the intended start it obviously can't be visible. */
|
|
|
7466 if (point < startp)
|
|
|
7467 return 0;
|
|
|
7468
|
|
|
7469 /* If point or start are not in the accessible buffer range, then
|
|
|
7470 fail. */
|
|
|
7471 if (startp < BUF_BEGV (b) || startp > BUF_ZV (b)
|
|
|
7472 || point < BUF_BEGV (b) || point > BUF_ZV (b))
|
|
|
7473 return 0;
|
|
|
7474
|
|
|
7475 validate_line_start_cache (w);
|
|
|
7476 w->line_cache_validation_override++;
|
|
|
7477
|
|
|
7478 start_elt = point_in_line_start_cache (w, startp, 0);
|
|
|
7479 if (start_elt == -1)
|
|
|
7480 {
|
|
|
7481 w->line_cache_validation_override--;
|
|
|
7482 return 0;
|
|
|
7483 }
|
|
|
7484
|
|
|
7485 assert (line_start_cache_start (w) <= startp
|
|
|
7486 && line_start_cache_end (w) >= startp);
|
|
|
7487
|
|
|
7488 while (1)
|
|
|
7489 {
|
|
|
7490 int height;
|
|
|
7491
|
|
|
7492 /* Expand the cache if necessary. */
|
|
|
7493 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
7494 {
|
|
|
7495 Bufpos old_startp =
|
|
|
7496 Dynarr_atp (w->line_start_cache, start_elt - 1)->start;
|
|
|
7497
|
|
|
7498 start_elt = point_in_line_start_cache (w, old_startp,
|
|
|
7499 window_char_height (w, 0));
|
|
|
7500
|
|
|
7501 /* We've already actually processed old_startp, so increment
|
|
|
7502 immediately. */
|
|
|
7503 start_elt++;
|
|
|
7504
|
|
|
7505 /* If this happens we didn't add any extra elements. Bummer. */
|
|
|
7506 if (start_elt == Dynarr_length (w->line_start_cache))
|
|
|
7507 {
|
|
|
7508 w->line_cache_validation_override--;
|
|
|
7509 return 0;
|
|
|
7510 }
|
|
|
7511 }
|
|
|
7512
|
|
|
7513 height = Dynarr_atp (w->line_start_cache, start_elt)->height;
|
|
|
7514
|
|
|
7515 if (pixpos + height > bottom)
|
|
|
7516 {
|
|
|
7517 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
7518 {
|
|
|
7519 w->line_cache_validation_override--;
|
|
|
7520 return 0;
|
|
|
7521 }
|
|
|
7522 }
|
|
|
7523
|
|
|
7524 pixpos += height;
|
|
|
7525 if (point <= Dynarr_atp (w->line_start_cache, start_elt)->end)
|
|
|
7526 {
|
|
|
7527 w->line_cache_validation_override--;
|
|
|
7528 return 1;
|
|
|
7529 }
|
|
|
7530
|
|
|
7531 start_elt++;
|
|
|
7532 }
|
|
|
7533 }
|
|
|
7534
|
|
|
7535 /* For the given window W, if display starts at STARTP, what will be
|
|
|
7536 the buffer position at the beginning or end of the last line
|
|
|
7537 displayed. The end of the last line is also know as the window end
|
|
|
7538 position.
|
|
|
7539
|
|
|
7540 #### With a little work this could probably be reworked as just a
|
|
|
7541 call to start_with_line_at_pixpos. */
|
|
|
7542
|
|
|
7543 static Bufpos
|
|
|
7544 start_end_of_last_line (struct window *w, Bufpos startp, int end)
|
|
|
7545 {
|
|
|
7546 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7547 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7548 int pixpos = 0;
|
|
|
7549 int bottom = WINDOW_TEXT_HEIGHT (w);
|
|
|
7550 Bufpos cur_start;
|
|
|
7551 int start_elt;
|
|
|
7552
|
|
|
7553 validate_line_start_cache (w);
|
|
|
7554 w->line_cache_validation_override++;
|
|
|
7555
|
|
|
7556 if (startp < BUF_BEGV (b))
|
|
|
7557 startp = BUF_BEGV (b);
|
|
|
7558 else if (startp > BUF_ZV (b))
|
|
|
7559 startp = BUF_ZV (b);
|
|
|
7560 cur_start = startp;
|
|
|
7561
|
|
|
7562 start_elt = point_in_line_start_cache (w, cur_start, 0);
|
|
|
7563 if (start_elt == -1)
|
|
|
7564 abort (); /* this had better never happen */
|
|
|
7565
|
|
|
7566 while (1)
|
|
|
7567 {
|
|
|
7568 int height = Dynarr_atp (cache, start_elt)->height;
|
|
|
7569
|
|
|
7570 cur_start = Dynarr_atp (cache, start_elt)->start;
|
|
|
7571
|
|
|
7572 if (pixpos + height > bottom)
|
|
|
7573 {
|
|
|
7574 /* Adjust for any possible clip. */
|
|
|
7575 if (bottom - pixpos < VERTICAL_CLIP (w, 0))
|
|
|
7576 start_elt--;
|
|
|
7577
|
|
|
7578 if (start_elt < 0)
|
|
|
7579 {
|
|
|
7580 w->line_cache_validation_override--;
|
|
|
7581 if (end)
|
|
|
7582 return BUF_ZV (b);
|
|
|
7583 else
|
|
|
7584 return BUF_BEGV (b);
|
|
|
7585 }
|
|
|
7586 else
|
|
|
7587 {
|
|
|
7588 w->line_cache_validation_override--;
|
|
|
7589 if (end)
|
|
|
7590 return Dynarr_atp (cache, start_elt)->end;
|
|
|
7591 else
|
|
|
7592 return Dynarr_atp (cache, start_elt)->start;
|
|
|
7593 }
|
|
|
7594 }
|
|
|
7595
|
|
|
7596 pixpos += height;
|
|
|
7597 start_elt++;
|
|
|
7598 if (start_elt == Dynarr_length (cache))
|
|
|
7599 {
|
|
|
7600 Bufpos from = line_start_cache_end (w);
|
|
|
7601 int win_char_height = window_char_height (w, 0);
|
|
|
7602 Bufpos to = find_next_newline_no_quit (b, from,
|
|
|
7603 (win_char_height
|
|
|
7604 ? win_char_height
|
|
|
7605 : 1));
|
|
|
7606
|
|
|
7607 /* We've hit the end of the bottom so that's what it is. */
|
|
|
7608 if (from >= BUF_ZV (b))
|
|
|
7609 {
|
|
|
7610 w->line_cache_validation_override--;
|
|
|
7611 return BUF_ZV (b);
|
|
|
7612 }
|
|
|
7613
|
|
|
7614 update_line_start_cache (w, from, to, BUF_PT (b), 0);
|
|
|
7615
|
|
|
7616 /* Updating the cache invalidates any current indexes. */
|
|
|
7617 start_elt = point_in_line_start_cache (w, cur_start, -1) + 1;
|
|
|
7618 }
|
|
|
7619 }
|
|
|
7620 }
|
|
|
7621
|
|
|
7622 /* For the given window W, if display starts at STARTP, what will be
|
|
|
7623 the buffer position at the beginning of the last line displayed. */
|
|
|
7624
|
|
|
7625 Bufpos
|
|
|
7626 start_of_last_line (struct window *w, Bufpos startp)
|
|
|
7627 {
|
|
|
7628 return start_end_of_last_line (w, startp, 0);
|
|
|
7629 }
|
|
|
7630
|
|
|
7631 /* For the given window W, if display starts at STARTP, what will be
|
|
|
7632 the buffer position at the end of the last line displayed. This is
|
|
|
7633 also know as the window end position. */
|
|
|
7634
|
|
|
7635 Bufpos
|
|
|
7636 end_of_last_line (struct window *w, Bufpos startp)
|
|
|
7637 {
|
|
|
7638 return start_end_of_last_line (w, startp, 1);
|
|
|
7639 }
|
|
|
7640
|
|
|
7641 /* For window W, what does the starting position have to be so that
|
|
|
7642 the line containing POINT will cover pixel position PIXPOS. */
|
|
|
7643
|
|
|
7644 Bufpos
|
|
|
7645 start_with_line_at_pixpos (struct window *w, Bufpos point, int pixpos)
|
|
|
7646 {
|
|
|
7647 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7648 int cur_elt;
|
|
|
7649 Bufpos cur_pos, prev_pos = point;
|
|
|
7650 int point_line_height;
|
|
|
7651 int pixheight = pixpos - WINDOW_TEXT_TOP (w);
|
|
|
7652
|
|
|
7653 validate_line_start_cache (w);
|
|
|
7654 w->line_cache_validation_override++;
|
|
|
7655
|
|
|
7656 cur_elt = point_in_line_start_cache (w, point, 0);
|
|
|
7657 /* #### See comment in update_line_start_cache about big minibuffers. */
|
|
|
7658 if (cur_elt < 0)
|
|
|
7659 {
|
|
|
7660 w->line_cache_validation_override--;
|
|
|
7661 return point;
|
|
|
7662 }
|
|
|
7663
|
|
|
7664 point_line_height = Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
7665
|
|
|
7666 while (1)
|
|
|
7667 {
|
|
|
7668 cur_pos = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
7669
|
|
|
7670 pixheight -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
7671
|
|
|
7672 /* Do not take into account the value of vertical_clip here.
|
|
|
7673 That is the responsibility of the calling functions. */
|
|
|
7674 if (pixheight < 0)
|
|
|
7675 {
|
|
|
7676 w->line_cache_validation_override--;
|
|
|
7677 if (-pixheight > point_line_height)
|
|
|
7678 /* We can't make the target line cover pixpos, so put it
|
|
|
7679 above pixpos. That way it will at least be visible. */
|
|
|
7680 return prev_pos;
|
|
|
7681 else
|
|
|
7682 return cur_pos;
|
|
|
7683 }
|
|
|
7684
|
|
|
7685 cur_elt--;
|
|
|
7686 while (cur_elt < 0)
|
|
|
7687 {
|
|
|
7688 Bufpos from, to;
|
|
|
7689 int win_char_height;
|
|
|
7690
|
|
|
7691 if (cur_pos <= BUF_BEGV (b))
|
|
|
7692 {
|
|
|
7693 w->line_cache_validation_override--;
|
|
|
7694 return BUF_BEGV (b);
|
|
|
7695 }
|
|
|
7696
|
|
|
7697 win_char_height = window_char_height (w, 0);
|
|
|
7698 if (!win_char_height)
|
|
|
7699 win_char_height = 1;
|
|
|
7700
|
|
|
7701 from = find_next_newline_no_quit (b, cur_pos, -win_char_height);
|
|
|
7702 to = line_start_cache_end (w);
|
|
|
7703 update_line_start_cache (w, from, to, point, 0);
|
|
|
7704
|
|
|
7705 cur_elt = point_in_line_start_cache (w, cur_pos, 2) - 1;
|
|
|
7706 assert (cur_elt >= -1);
|
|
|
7707 /* This used to be cur_elt>=0 under the assumption that if
|
|
|
7708 point is in the top line and not at BUF_BEGV, then
|
|
434
|
7709 setting the window_start to a newline before the start of
|
|
428
|
7710 the first line will always cause scrolling.
|
|
|
7711
|
|
|
7712 However in my (jv) opinion this is wrong. That new line
|
|
|
7713 can be hidden in various ways: invisible extents, an
|
|
|
7714 explicit window-start not at a newline character etc.
|
|
|
7715 The existence of those are indeed known to create crashes
|
|
|
7716 on that assert. So we have no option but to continue the
|
|
|
7717 search if we found point at the top of the line_start_cache
|
|
|
7718 again. */
|
|
434
|
7719 cur_pos = Dynarr_atp (w->line_start_cache,0)->start;
|
|
428
|
7720 }
|
|
|
7721 prev_pos = cur_pos;
|
|
|
7722 }
|
|
|
7723 }
|
|
|
7724
|
|
|
7725 /* For window W, what does the starting position have to be so that
|
|
|
7726 the line containing point is on display line LINE. If LINE is
|
|
|
7727 positive it is considered to be the number of lines from the top of
|
|
|
7728 the window (0 is the top line). If it is negative the number is
|
|
|
7729 considered to be the number of lines from the bottom (-1 is the
|
|
|
7730 bottom line). */
|
|
|
7731
|
|
|
7732 Bufpos
|
|
|
7733 start_with_point_on_display_line (struct window *w, Bufpos point, int line)
|
|
|
7734 {
|
|
|
7735 validate_line_start_cache (w);
|
|
|
7736 w->line_cache_validation_override++;
|
|
|
7737
|
|
|
7738 if (line >= 0)
|
|
|
7739 {
|
|
|
7740 int cur_elt = point_in_line_start_cache (w, point, line);
|
|
|
7741
|
|
|
7742 if (cur_elt - line < 0)
|
|
|
7743 cur_elt = 0; /* Hit the top */
|
|
|
7744 else
|
|
|
7745 cur_elt -= line;
|
|
|
7746
|
|
|
7747 w->line_cache_validation_override--;
|
|
|
7748 return Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
7749 }
|
|
|
7750 else
|
|
|
7751 {
|
|
|
7752 /* The calculated value of pixpos is correct for the bottom line
|
|
|
7753 or what we want when line is -1. Therefore we subtract one
|
|
|
7754 because we have already handled one line. */
|
|
|
7755 int new_line = -line - 1;
|
|
|
7756 int cur_elt = point_in_line_start_cache (w, point, new_line);
|
|
|
7757 int pixpos = WINDOW_TEXT_BOTTOM (w);
|
|
|
7758 Bufpos retval, search_point;
|
|
|
7759
|
|
|
7760 /* If scroll_on_clipped_lines is false, the last "visible" line of
|
|
|
7761 the window covers the pixel at WINDOW_TEXT_BOTTOM (w) - 1.
|
|
|
7762 If s_o_c_l is true, then we don't want to count a clipped
|
|
|
7763 line, so back up from the bottom by the height of the line
|
|
|
7764 containing point. */
|
|
|
7765 if (scroll_on_clipped_lines)
|
|
|
7766 pixpos -= Dynarr_atp (w->line_start_cache, cur_elt)->height;
|
|
|
7767 else
|
|
|
7768 pixpos -= 1;
|
|
|
7769
|
|
|
7770 if (cur_elt + new_line >= Dynarr_length (w->line_start_cache))
|
|
|
7771 {
|
|
|
7772 /* Hit the bottom of the buffer. */
|
|
|
7773 int adjustment =
|
|
|
7774 (cur_elt + new_line) - Dynarr_length (w->line_start_cache) + 1;
|
|
|
7775 Lisp_Object window;
|
|
|
7776 int defheight;
|
|
|
7777
|
|
|
7778 XSETWINDOW (window, w);
|
|
|
7779 default_face_height_and_width (window, &defheight, 0);
|
|
|
7780
|
|
|
7781 cur_elt = Dynarr_length (w->line_start_cache) - 1;
|
|
|
7782
|
|
|
7783 pixpos -= (adjustment * defheight);
|
|
|
7784 if (pixpos < WINDOW_TEXT_TOP (w))
|
|
|
7785 pixpos = WINDOW_TEXT_TOP (w);
|
|
|
7786 }
|
|
|
7787 else
|
|
|
7788 cur_elt = cur_elt + new_line;
|
|
|
7789
|
|
|
7790 search_point = Dynarr_atp (w->line_start_cache, cur_elt)->start;
|
|
|
7791
|
|
|
7792 retval = start_with_line_at_pixpos (w, search_point, pixpos);
|
|
|
7793 w->line_cache_validation_override--;
|
|
|
7794 return retval;
|
|
|
7795 }
|
|
|
7796 }
|
|
|
7797
|
|
|
7798 /* This is used to speed up vertical scrolling by caching the known
|
|
|
7799 buffer starting positions for display lines. This allows the
|
|
|
7800 scrolling routines to avoid costly calls to regenerate_window. If
|
|
|
7801 NO_REGEN is true then it will only add the values in the DESIRED
|
|
|
7802 display structs which are in the given range.
|
|
|
7803
|
|
|
7804 Note also that the FROM/TO values are minimums. It is possible
|
|
|
7805 that this function will actually add information outside of the
|
|
|
7806 lines containing those positions. This can't hurt but it could
|
|
|
7807 possibly help.
|
|
|
7808
|
|
|
7809 #### We currently force the cache to have only 1 contiguous region.
|
|
|
7810 It might help to make the cache a dynarr of caches so that we can
|
|
|
7811 cover more areas. This might, however, turn out to be a lot of
|
|
|
7812 overhead for too little gain. */
|
|
|
7813
|
|
|
7814 static void
|
|
|
7815 update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
|
|
|
7816 Bufpos point, int no_regen)
|
|
|
7817 {
|
|
|
7818 struct buffer *b = XBUFFER (w->buffer);
|
|
|
7819 line_start_cache_dynarr *cache = w->line_start_cache;
|
|
|
7820 Bufpos low_bound, high_bound;
|
|
|
7821
|
|
|
7822 validate_line_start_cache (w);
|
|
|
7823 w->line_cache_validation_override++;
|
|
|
7824 updating_line_start_cache = 1;
|
|
|
7825
|
|
|
7826 if (from < BUF_BEGV (b))
|
|
|
7827 from = BUF_BEGV (b);
|
|
|
7828 if (to > BUF_ZV (b))
|
|
|
7829 to = BUF_ZV (b);
|
|
|
7830
|
|
|
7831 if (from > to)
|
|
|
7832 {
|
|
|
7833 updating_line_start_cache = 0;
|
|
|
7834 w->line_cache_validation_override--;
|
|
|
7835 return;
|
|
|
7836 }
|
|
|
7837
|
|
|
7838 if (Dynarr_length (cache))
|
|
|
7839 {
|
|
|
7840 low_bound = line_start_cache_start (w);
|
|
|
7841 high_bound = line_start_cache_end (w);
|
|
|
7842
|
|
|
7843 /* Check to see if the desired range is already in the cache. */
|
|
|
7844 if (from >= low_bound && to <= high_bound)
|
|
|
7845 {
|
|
|
7846 updating_line_start_cache = 0;
|
|
|
7847 w->line_cache_validation_override--;
|
|
|
7848 return;
|
|
|
7849 }
|
|
|
7850
|
|
|
7851 /* Check to make sure that the desired range is adjacent to the
|
|
|
7852 current cache. If not, invalidate the cache. */
|
|
|
7853 if (to < low_bound || from > high_bound)
|
|
|
7854 {
|
|
|
7855 Dynarr_reset (cache);
|
|
|
7856 low_bound = high_bound = -1;
|
|
|
7857 }
|
|
|
7858 }
|
|
|
7859 else
|
|
|
7860 {
|
|
|
7861 low_bound = high_bound = -1;
|
|
|
7862 }
|
|
|
7863
|
|
|
7864 w->line_cache_last_updated = make_int (BUF_MODIFF (b));
|
|
|
7865
|
|
|
7866 /* This could be integrated into the next two sections, but it is easier
|
|
|
7867 to follow what's going on by having it separate. */
|
|
|
7868 if (no_regen)
|
|
|
7869 {
|
|
|
7870 Bufpos start, end;
|
|
|
7871
|
|
|
7872 update_internal_cache_list (w, DESIRED_DISP);
|
|
|
7873 if (!Dynarr_length (internal_cache))
|
|
|
7874 {
|
|
|
7875 updating_line_start_cache = 0;
|
|
|
7876 w->line_cache_validation_override--;
|
|
|
7877 return;
|
|
|
7878 }
|
|
|
7879
|
|
|
7880 start = Dynarr_atp (internal_cache, 0)->start;
|
|
|
7881 end =
|
|
|
7882 Dynarr_atp (internal_cache, Dynarr_length (internal_cache) - 1)->end;
|
|
|
7883
|
|
|
7884 /* We aren't allowed to generate additional information to fill in
|
|
|
7885 gaps, so if the DESIRED structs don't overlap the cache, reset the
|
|
|
7886 cache. */
|
|
|
7887 if (Dynarr_length (cache))
|
|
|
7888 {
|
|
|
7889 if (end < low_bound || start > high_bound)
|
|
|
7890 Dynarr_reset (cache);
|
|
|
7891
|
|
|
7892 /* #### What should really happen if what we are doing is
|
|
|
7893 extending a line (the last line)? */
|
|
|
7894 if (Dynarr_length (cache) == 1
|
|
|
7895 && Dynarr_length (internal_cache) == 1)
|
|
|
7896 Dynarr_reset (cache);
|
|
|
7897 }
|
|
|
7898
|
|
|
7899 if (!Dynarr_length (cache))
|
|
|
7900 {
|
|
|
7901 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7902 Dynarr_length (internal_cache));
|
|
|
7903 updating_line_start_cache = 0;
|
|
|
7904 w->line_cache_validation_override--;
|
|
|
7905 return;
|
|
|
7906 }
|
|
|
7907
|
|
|
7908 /* An extra check just in case the calling function didn't pass in
|
|
|
7909 the bounds of the DESIRED structs in the first place. */
|
|
|
7910 if (start >= low_bound && end <= high_bound)
|
|
|
7911 {
|
|
|
7912 updating_line_start_cache = 0;
|
|
|
7913 w->line_cache_validation_override--;
|
|
|
7914 return;
|
|
|
7915 }
|
|
|
7916
|
|
|
7917 /* At this point we know that the internal cache partially overlaps
|
|
|
7918 the main cache. */
|
|
|
7919 if (start < low_bound)
|
|
|
7920 {
|
|
|
7921 int ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
7922 while (ic_elt >= 0)
|
|
|
7923 {
|
|
|
7924 if (Dynarr_atp (internal_cache, ic_elt)->start < low_bound)
|
|
|
7925 break;
|
|
|
7926 else
|
|
|
7927 ic_elt--;
|
|
|
7928 }
|
|
|
7929
|
|
|
7930 if (!(ic_elt >= 0))
|
|
|
7931 {
|
|
|
7932 Dynarr_reset (cache);
|
|
|
7933 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7934 Dynarr_length (internal_cache));
|
|
|
7935 updating_line_start_cache = 0;
|
|
|
7936 w->line_cache_validation_override--;
|
|
|
7937 return;
|
|
|
7938 }
|
|
|
7939
|
|
|
7940 Dynarr_insert_many_at_start (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7941 ic_elt + 1);
|
|
|
7942 }
|
|
|
7943
|
|
|
7944 if (end > high_bound)
|
|
|
7945 {
|
|
|
7946 int ic_elt = 0;
|
|
|
7947
|
|
|
7948 while (ic_elt < Dynarr_length (internal_cache))
|
|
|
7949 {
|
|
|
7950 if (Dynarr_atp (internal_cache, ic_elt)->start > high_bound)
|
|
|
7951 break;
|
|
|
7952 else
|
|
|
7953 ic_elt++;
|
|
|
7954 }
|
|
|
7955
|
|
|
7956 if (!(ic_elt < Dynarr_length (internal_cache)))
|
|
|
7957 {
|
|
|
7958 Dynarr_reset (cache);
|
|
|
7959 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
7960 Dynarr_length (internal_cache));
|
|
|
7961 updating_line_start_cache = 0;
|
|
|
7962 w->line_cache_validation_override--;
|
|
|
7963 return;
|
|
|
7964 }
|
|
|
7965
|
|
|
7966 Dynarr_add_many (cache, Dynarr_atp (internal_cache, ic_elt),
|
|
|
7967 Dynarr_length (internal_cache) - ic_elt);
|
|
|
7968 }
|
|
|
7969
|
|
|
7970 updating_line_start_cache = 0;
|
|
|
7971 w->line_cache_validation_override--;
|
|
|
7972 return;
|
|
|
7973 }
|
|
|
7974
|
|
|
7975 if (!Dynarr_length (cache) || from < low_bound)
|
|
|
7976 {
|
|
|
7977 Bufpos startp = find_next_newline_no_quit (b, from, -1);
|
|
|
7978 int marker = 0;
|
|
|
7979 int old_lb = low_bound;
|
|
|
7980
|
|
|
7981 while (startp < old_lb || low_bound == -1)
|
|
|
7982 {
|
|
|
7983 int ic_elt;
|
|
|
7984 Bufpos new_startp;
|
|
|
7985
|
|
|
7986 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
7987 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
7988
|
|
|
7989 /* If this assert is triggered then regenerate_window failed
|
|
|
7990 to layout a single line. That is not supposed to be
|
|
|
7991 possible because we impose a minimum height on the buffer
|
|
|
7992 and override vertical clip when we are in here. */
|
|
|
7993 /* #### Ah, but it is because the window may temporarily
|
|
|
7994 exist but not have any lines at all if the minibuffer is
|
|
|
7995 real big. Look into that situation better. */
|
|
|
7996 if (!Dynarr_length (internal_cache))
|
|
|
7997 {
|
|
|
7998 if (old_lb == -1 && low_bound == -1)
|
|
|
7999 {
|
|
|
8000 updating_line_start_cache = 0;
|
|
|
8001 w->line_cache_validation_override--;
|
|
|
8002 return;
|
|
|
8003 }
|
|
|
8004
|
|
|
8005 assert (Dynarr_length (internal_cache));
|
|
|
8006 }
|
|
|
8007 assert (startp == Dynarr_atp (internal_cache, 0)->start);
|
|
|
8008
|
|
|
8009 ic_elt = Dynarr_length (internal_cache) - 1;
|
|
|
8010 if (low_bound != -1)
|
|
|
8011 {
|
|
|
8012 while (ic_elt >= 0)
|
|
|
8013 {
|
|
|
8014 if (Dynarr_atp (internal_cache, ic_elt)->start < old_lb)
|
|
|
8015 break;
|
|
|
8016 else
|
|
|
8017 ic_elt--;
|
|
|
8018 }
|
|
|
8019 }
|
|
|
8020 assert (ic_elt >= 0);
|
|
|
8021
|
|
|
8022 new_startp = Dynarr_atp (internal_cache, ic_elt)->end + 1;
|
|
|
8023
|
|
|
8024 /*
|
|
|
8025 * Handle invisible text properly:
|
|
|
8026 * If the last line we're inserting has the same end as the
|
|
|
8027 * line before which it will be added, merge the two lines.
|
|
|
8028 */
|
|
|
8029 if (Dynarr_length (cache) &&
|
|
|
8030 Dynarr_atp (internal_cache, ic_elt)->end ==
|
|
|
8031 Dynarr_atp (cache, marker)->end)
|
|
|
8032 {
|
|
|
8033 Dynarr_atp (cache, marker)->start
|
|
|
8034 = Dynarr_atp (internal_cache, ic_elt)->start;
|
|
|
8035 Dynarr_atp (cache, marker)->height
|
|
|
8036 = Dynarr_atp (internal_cache, ic_elt)->height;
|
|
|
8037 ic_elt--;
|
|
|
8038 }
|
|
|
8039
|
|
|
8040 if (ic_elt >= 0) /* we still have lines to add.. */
|
|
|
8041 {
|
|
|
8042 Dynarr_insert_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8043 ic_elt + 1, marker);
|
|
|
8044 marker += (ic_elt + 1);
|
|
|
8045 }
|
|
|
8046
|
|
|
8047 if (startp < low_bound || low_bound == -1)
|
|
|
8048 low_bound = startp;
|
|
|
8049 startp = new_startp;
|
|
|
8050 if (startp > BUF_ZV (b))
|
|
|
8051 {
|
|
|
8052 updating_line_start_cache = 0;
|
|
|
8053 w->line_cache_validation_override--;
|
|
|
8054 return;
|
|
|
8055 }
|
|
|
8056 }
|
|
|
8057 }
|
|
|
8058
|
|
|
8059 assert (Dynarr_length (cache));
|
|
|
8060 assert (from >= low_bound);
|
|
|
8061
|
|
|
8062 /* Readjust the high_bound to account for any changes made while
|
|
|
8063 correcting the low_bound. */
|
|
|
8064 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
8065
|
|
|
8066 if (to > high_bound)
|
|
|
8067 {
|
|
|
8068 Bufpos startp = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end + 1;
|
|
|
8069
|
|
|
8070 do
|
|
|
8071 {
|
|
|
8072 regenerate_window (w, startp, point, CMOTION_DISP);
|
|
|
8073 update_internal_cache_list (w, CMOTION_DISP);
|
|
|
8074
|
|
|
8075 /* See comment above about regenerate_window failing. */
|
|
|
8076 assert (Dynarr_length (internal_cache));
|
|
|
8077
|
|
|
8078 Dynarr_add_many (cache, Dynarr_atp (internal_cache, 0),
|
|
|
8079 Dynarr_length (internal_cache));
|
|
|
8080 high_bound = Dynarr_atp (cache, Dynarr_length (cache) - 1)->end;
|
|
|
8081 startp = high_bound + 1;
|
|
|
8082 }
|
|
|
8083 while (to > high_bound);
|
|
|
8084 }
|
|
|
8085
|
|
|
8086 updating_line_start_cache = 0;
|
|
|
8087 w->line_cache_validation_override--;
|
|
|
8088 assert (to <= high_bound);
|
|
|
8089 }
|
|
|
8090
|
|
|
8091
|
|
|
8092 /* Given x and y coordinates in characters, relative to a window,
|
|
|
8093 return the pixel location corresponding to those coordinates. The
|
|
|
8094 pixel location returned is the center of the given character
|
|
|
8095 position. The pixel values are generated relative to the window,
|
|
|
8096 not the frame.
|
|
|
8097
|
|
|
8098 The modeline is considered to be part of the window. */
|
|
|
8099
|
|
|
8100 void
|
|
|
8101 glyph_to_pixel_translation (struct window *w, int char_x, int char_y,
|
|
|
8102 int *pix_x, int *pix_y)
|
|
|
8103 {
|
|
|
8104 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
8105 int num_disp_lines, modeline;
|
|
|
8106 Lisp_Object window;
|
|
|
8107 int defheight, defwidth;
|
|
|
8108
|
|
|
8109 XSETWINDOW (window, w);
|
|
|
8110 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
8111
|
|
|
8112 /* If we get a bogus value indicating somewhere above or to the left of
|
|
|
8113 the window, use the first window line or character position
|
|
|
8114 instead. */
|
|
|
8115 if (char_y < 0)
|
|
|
8116 char_y = 0;
|
|
|
8117 if (char_x < 0)
|
|
|
8118 char_x = 0;
|
|
|
8119
|
|
|
8120 num_disp_lines = Dynarr_length (dla);
|
|
|
8121 modeline = 0;
|
|
|
8122 if (num_disp_lines)
|
|
|
8123 {
|
|
|
8124 if (Dynarr_atp (dla, 0)->modeline)
|
|
|
8125 {
|
|
|
8126 num_disp_lines--;
|
|
|
8127 modeline = 1;
|
|
|
8128 }
|
|
|
8129 }
|
|
|
8130
|
|
|
8131 /* First check if the y position intersects the display lines. */
|
|
|
8132 if (char_y < num_disp_lines)
|
|
|
8133 {
|
|
|
8134 struct display_line *dl = Dynarr_atp (dla, char_y + modeline);
|
|
|
8135 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
8136
|
|
|
8137 *pix_y = (dl->ypos - dl->ascent +
|
|
|
8138 ((unsigned int) (dl->ascent + dl->descent - dl->clip) >> 1));
|
|
|
8139
|
|
|
8140 if (char_x < Dynarr_length (db->runes))
|
|
|
8141 {
|
|
|
8142 struct rune *rb = Dynarr_atp (db->runes, char_x);
|
|
|
8143
|
|
|
8144 *pix_x = rb->xpos + (rb->width >> 1);
|
|
|
8145 }
|
|
|
8146 else
|
|
|
8147 {
|
|
|
8148 int last_rune = Dynarr_length (db->runes) - 1;
|
|
|
8149 struct rune *rb = Dynarr_atp (db->runes, last_rune);
|
|
|
8150
|
|
|
8151 char_x -= last_rune;
|
|
|
8152
|
|
|
8153 *pix_x = rb->xpos + rb->width;
|
|
|
8154 *pix_x += ((char_x - 1) * defwidth);
|
|
|
8155 *pix_x += (defwidth >> 1);
|
|
|
8156 }
|
|
|
8157 }
|
|
|
8158 else
|
|
|
8159 {
|
|
|
8160 /* It didn't intersect, so extrapolate. #### For now, we include the
|
|
|
8161 modeline in this since we don't have true character positions in
|
|
|
8162 it. */
|
|
|
8163
|
|
|
8164 if (!Dynarr_length (w->face_cachels))
|
|
|
8165 reset_face_cachels (w);
|
|
|
8166
|
|
|
8167 char_y -= num_disp_lines;
|
|
|
8168
|
|
|
8169 if (Dynarr_length (dla))
|
|
|
8170 {
|
|
|
8171 struct display_line *dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
8172 *pix_y = dl->ypos + dl->descent - dl->clip;
|
|
|
8173 }
|
|
|
8174 else
|
|
|
8175 *pix_y = WINDOW_TEXT_TOP (w);
|
|
|
8176
|
|
|
8177 *pix_y += (char_y * defheight);
|
|
|
8178 *pix_y += (defheight >> 1);
|
|
|
8179
|
|
|
8180 *pix_x = WINDOW_TEXT_LEFT (w);
|
|
|
8181 /* Don't adjust by one because this is still the unadjusted value. */
|
|
|
8182 *pix_x += (char_x * defwidth);
|
|
|
8183 *pix_x += (defwidth >> 1);
|
|
|
8184 }
|
|
|
8185
|
|
|
8186 if (*pix_x > w->pixel_left + w->pixel_width)
|
|
|
8187 *pix_x = w->pixel_left + w->pixel_width;
|
|
|
8188 if (*pix_y > w->pixel_top + w->pixel_height)
|
|
|
8189 *pix_y = w->pixel_top + w->pixel_height;
|
|
|
8190
|
|
|
8191 *pix_x -= w->pixel_left;
|
|
|
8192 *pix_y -= w->pixel_top;
|
|
|
8193 }
|
|
|
8194
|
|
|
8195 /* Given a display line and a position, determine if there is a glyph
|
|
|
8196 there and return information about it if there is. */
|
|
|
8197
|
|
|
8198 static void
|
|
|
8199 get_position_object (struct display_line *dl, Lisp_Object *obj1,
|
|
|
8200 Lisp_Object *obj2, int x_coord, int *low_x_coord,
|
|
|
8201 int *high_x_coord)
|
|
|
8202 {
|
|
|
8203 struct display_block *db;
|
|
|
8204 int elt;
|
|
|
8205 int block =
|
|
|
8206 get_next_display_block (dl->bounds, dl->display_blocks, x_coord, 0);
|
|
|
8207
|
|
|
8208 /* We use get_next_display_block to get the actual display block
|
|
|
8209 that would be displayed at x_coord. */
|
|
|
8210
|
|
|
8211 if (block == NO_BLOCK)
|
|
|
8212 return;
|
|
|
8213 else
|
|
|
8214 db = Dynarr_atp (dl->display_blocks, block);
|
|
|
8215
|
|
|
8216 for (elt = 0; elt < Dynarr_length (db->runes); elt++)
|
|
|
8217 {
|
|
|
8218 struct rune *rb = Dynarr_atp (db->runes, elt);
|
|
|
8219
|
|
|
8220 if (rb->xpos <= x_coord && x_coord < (rb->xpos + rb->width))
|
|
|
8221 {
|
|
|
8222 if (rb->type == RUNE_DGLYPH)
|
|
|
8223 {
|
|
|
8224 *obj1 = rb->object.dglyph.glyph;
|
|
|
8225 *obj2 = rb->object.dglyph.extent;
|
|
|
8226 }
|
|
|
8227 else
|
|
|
8228 {
|
|
|
8229 *obj1 = Qnil;
|
|
|
8230 *obj2 = Qnil;
|
|
|
8231 }
|
|
|
8232
|
|
|
8233 if (low_x_coord)
|
|
|
8234 *low_x_coord = rb->xpos;
|
|
|
8235 if (high_x_coord)
|
|
|
8236 *high_x_coord = rb->xpos + rb->width;
|
|
|
8237
|
|
|
8238 return;
|
|
|
8239 }
|
|
|
8240 }
|
|
|
8241 }
|
|
|
8242
|
|
|
8243 #define UPDATE_CACHE_RETURN \
|
|
|
8244 do { \
|
|
|
8245 d->pixel_to_glyph_cache.valid = 1; \
|
|
|
8246 d->pixel_to_glyph_cache.low_x_coord = low_x_coord; \
|
|
|
8247 d->pixel_to_glyph_cache.high_x_coord = high_x_coord; \
|
|
|
8248 d->pixel_to_glyph_cache.low_y_coord = low_y_coord; \
|
|
|
8249 d->pixel_to_glyph_cache.high_y_coord = high_y_coord; \
|
|
|
8250 d->pixel_to_glyph_cache.frame = f; \
|
|
|
8251 d->pixel_to_glyph_cache.col = *col; \
|
|
|
8252 d->pixel_to_glyph_cache.row = *row; \
|
|
|
8253 d->pixel_to_glyph_cache.obj_x = *obj_x; \
|
|
|
8254 d->pixel_to_glyph_cache.obj_y = *obj_y; \
|
|
|
8255 d->pixel_to_glyph_cache.w = *w; \
|
|
|
8256 d->pixel_to_glyph_cache.bufpos = *bufpos; \
|
|
|
8257 d->pixel_to_glyph_cache.closest = *closest; \
|
|
|
8258 d->pixel_to_glyph_cache.modeline_closest = *modeline_closest; \
|
|
|
8259 d->pixel_to_glyph_cache.obj1 = *obj1; \
|
|
|
8260 d->pixel_to_glyph_cache.obj2 = *obj2; \
|
|
|
8261 d->pixel_to_glyph_cache.retval = position; \
|
|
|
8262 RETURN_SANS_WARNINGS position; \
|
|
|
8263 } while (0)
|
|
|
8264
|
|
|
8265 /* Given x and y coordinates in pixels relative to a frame, return
|
|
|
8266 information about what is located under those coordinates.
|
|
|
8267
|
|
|
8268 The return value will be one of:
|
|
|
8269
|
|
|
8270 OVER_TOOLBAR: over one of the 4 frame toolbars
|
|
|
8271 OVER_MODELINE: over a modeline
|
|
|
8272 OVER_BORDER: over an internal border
|
|
|
8273 OVER_NOTHING: over the text area, but not over text
|
|
|
8274 OVER_OUTSIDE: outside of the frame border
|
|
|
8275 OVER_TEXT: over text in the text area
|
|
|
8276
|
|
|
8277 OBJ1 is one of
|
|
|
8278
|
|
|
8279 -- a toolbar button
|
|
|
8280 -- a glyph
|
|
|
8281 -- nil if the coordinates are not over a glyph or a toolbar button.
|
|
|
8282
|
|
|
8283 OBJ2 is one of
|
|
|
8284
|
|
|
8285 -- an extent, if the coordinates are over a glyph in the text area
|
|
|
8286 -- nil otherwise.
|
|
|
8287
|
|
|
8288 If the coordinates are over a glyph, OBJ_X and OBJ_Y give the
|
|
|
8289 equivalent coordinates relative to the upper-left corner of the glyph.
|
|
|
8290
|
|
|
8291 If the coordinates are over a character, OBJ_X and OBJ_Y give the
|
|
|
8292 equivalent coordinates relative to the upper-left corner of the character.
|
|
|
8293
|
|
|
8294 Otherwise, OBJ_X and OBJ_Y are undefined.
|
|
|
8295 */
|
|
|
8296
|
|
|
8297 int
|
|
|
8298 pixel_to_glyph_translation (struct frame *f, int x_coord, int y_coord,
|
|
|
8299 int *col, int *row, int *obj_x, int *obj_y,
|
|
|
8300 struct window **w, Bufpos *bufpos,
|
|
|
8301 Bufpos *closest, Charcount *modeline_closest,
|
|
|
8302 Lisp_Object *obj1, Lisp_Object *obj2)
|
|
|
8303 {
|
|
|
8304 struct device *d;
|
|
|
8305 struct pixel_to_glyph_translation_cache *cache;
|
|
|
8306 Lisp_Object window;
|
|
|
8307 int frm_left, frm_right, frm_top, frm_bottom;
|
|
|
8308 int low_x_coord, high_x_coord, low_y_coord, high_y_coord;
|
|
|
8309 int position = OVER_NOTHING;
|
|
|
8310 int device_check_failed = 0;
|
|
|
8311 display_line_dynarr *dla;
|
|
|
8312
|
|
|
8313 /* This is a safety valve in case this got called with a frame in
|
|
|
8314 the middle of being deleted. */
|
|
|
8315 if (!DEVICEP (f->device) || !DEVICE_LIVE_P (XDEVICE (f->device)))
|
|
|
8316 {
|
|
|
8317 device_check_failed = 1;
|
|
|
8318 d = NULL, cache = NULL; /* Warning suppression */
|
|
|
8319 }
|
|
|
8320 else
|
|
|
8321 {
|
|
|
8322 d = XDEVICE (f->device);
|
|
|
8323 cache = &d->pixel_to_glyph_cache;
|
|
|
8324 }
|
|
|
8325
|
|
|
8326 if (!device_check_failed
|
|
|
8327 && cache->valid
|
|
|
8328 && cache->frame == f
|
|
|
8329 && cache->low_x_coord <= x_coord
|
|
|
8330 && cache->high_x_coord > x_coord
|
|
|
8331 && cache->low_y_coord <= y_coord
|
|
|
8332 && cache->high_y_coord > y_coord)
|
|
|
8333 {
|
|
|
8334 *col = cache->col;
|
|
|
8335 *row = cache->row;
|
|
|
8336 *obj_x = cache->obj_x;
|
|
|
8337 *obj_y = cache->obj_y;
|
|
|
8338 *w = cache->w;
|
|
|
8339 *bufpos = cache->bufpos;
|
|
|
8340 *closest = cache->closest;
|
|
|
8341 *modeline_closest = cache->modeline_closest;
|
|
|
8342 *obj1 = cache->obj1;
|
|
|
8343 *obj2 = cache->obj2;
|
|
|
8344
|
|
|
8345 return cache->retval;
|
|
|
8346 }
|
|
|
8347 else
|
|
|
8348 {
|
|
|
8349 *col = 0;
|
|
|
8350 *row = 0;
|
|
|
8351 *obj_x = 0;
|
|
|
8352 *obj_y = 0;
|
|
|
8353 *w = 0;
|
|
|
8354 *bufpos = 0;
|
|
|
8355 *closest = 0;
|
|
|
8356 *modeline_closest = -1;
|
|
|
8357 *obj1 = Qnil;
|
|
|
8358 *obj2 = Qnil;
|
|
|
8359
|
|
|
8360 low_x_coord = x_coord;
|
|
|
8361 high_x_coord = x_coord + 1;
|
|
|
8362 low_y_coord = y_coord;
|
|
|
8363 high_y_coord = y_coord + 1;
|
|
|
8364 }
|
|
|
8365
|
|
|
8366 if (device_check_failed)
|
|
|
8367 return OVER_NOTHING;
|
|
|
8368
|
|
|
8369 frm_left = FRAME_LEFT_BORDER_END (f);
|
|
|
8370 frm_right = FRAME_RIGHT_BORDER_START (f);
|
|
|
8371 frm_top = FRAME_TOP_BORDER_END (f);
|
|
|
8372 frm_bottom = FRAME_BOTTOM_BORDER_START (f);
|
|
|
8373
|
|
|
8374 /* Check if the mouse is outside of the text area actually used by
|
|
|
8375 redisplay. */
|
|
|
8376 if (y_coord < frm_top)
|
|
|
8377 {
|
|
|
8378 if (y_coord >= FRAME_TOP_BORDER_START (f))
|
|
|
8379 {
|
|
|
8380 low_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
8381 high_y_coord = frm_top;
|
|
|
8382 position = OVER_BORDER;
|
|
|
8383 }
|
|
|
8384 else if (y_coord >= 0)
|
|
|
8385 {
|
|
|
8386 low_y_coord = 0;
|
|
|
8387 high_y_coord = FRAME_TOP_BORDER_START (f);
|
|
|
8388 position = OVER_TOOLBAR;
|
|
|
8389 }
|
|
|
8390 else
|
|
|
8391 {
|
|
|
8392 low_y_coord = y_coord;
|
|
|
8393 high_y_coord = 0;
|
|
|
8394 position = OVER_OUTSIDE;
|
|
|
8395 }
|
|
|
8396 }
|
|
|
8397 else if (y_coord >= frm_bottom)
|
|
|
8398 {
|
|
|
8399 if (y_coord < FRAME_BOTTOM_BORDER_END (f))
|
|
|
8400 {
|
|
|
8401 low_y_coord = frm_bottom;
|
|
|
8402 high_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
8403 position = OVER_BORDER;
|
|
|
8404 }
|
|
|
8405 else if (y_coord < FRAME_PIXHEIGHT (f))
|
|
|
8406 {
|
|
|
8407 low_y_coord = FRAME_BOTTOM_BORDER_END (f);
|
|
|
8408 high_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
8409 position = OVER_TOOLBAR;
|
|
|
8410 }
|
|
|
8411 else
|
|
|
8412 {
|
|
|
8413 low_y_coord = FRAME_PIXHEIGHT (f);
|
|
|
8414 high_y_coord = y_coord;
|
|
|
8415 position = OVER_OUTSIDE;
|
|
|
8416 }
|
|
|
8417 }
|
|
|
8418
|
|
|
8419 if (position != OVER_TOOLBAR && position != OVER_BORDER)
|
|
|
8420 {
|
|
|
8421 if (x_coord < frm_left)
|
|
|
8422 {
|
|
|
8423 if (x_coord >= FRAME_LEFT_BORDER_START (f))
|
|
|
8424 {
|
|
|
8425 low_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
8426 high_x_coord = frm_left;
|
|
|
8427 position = OVER_BORDER;
|
|
|
8428 }
|
|
|
8429 else if (x_coord >= 0)
|
|
|
8430 {
|
|
|
8431 low_x_coord = 0;
|
|
|
8432 high_x_coord = FRAME_LEFT_BORDER_START (f);
|
|
|
8433 position = OVER_TOOLBAR;
|
|
|
8434 }
|
|
|
8435 else
|
|
|
8436 {
|
|
|
8437 low_x_coord = x_coord;
|
|
|
8438 high_x_coord = 0;
|
|
|
8439 position = OVER_OUTSIDE;
|
|
|
8440 }
|
|
|
8441 }
|
|
|
8442 else if (x_coord >= frm_right)
|
|
|
8443 {
|
|
|
8444 if (x_coord < FRAME_RIGHT_BORDER_END (f))
|
|
|
8445 {
|
|
|
8446 low_x_coord = frm_right;
|
|
|
8447 high_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
8448 position = OVER_BORDER;
|
|
|
8449 }
|
|
|
8450 else if (x_coord < FRAME_PIXWIDTH (f))
|
|
|
8451 {
|
|
|
8452 low_x_coord = FRAME_RIGHT_BORDER_END (f);
|
|
|
8453 high_x_coord = FRAME_PIXWIDTH (f);
|
|
|
8454 position = OVER_TOOLBAR;
|
|
|
8455 }
|
|
|
8456 else
|
|
|
8457 {
|
|
|
8458 low_x_coord = FRAME_PIXWIDTH (f);
|
|
|
8459 high_x_coord = x_coord;
|
|
|
8460 position = OVER_OUTSIDE;
|
|
|
8461 }
|
|
|
8462 }
|
|
|
8463 }
|
|
|
8464
|
|
|
8465 #ifdef HAVE_TOOLBARS
|
|
|
8466 if (position == OVER_TOOLBAR)
|
|
|
8467 {
|
|
|
8468 *obj1 = toolbar_button_at_pixpos (f, x_coord, y_coord);
|
|
|
8469 *obj2 = Qnil;
|
|
|
8470 *w = 0;
|
|
|
8471 UPDATE_CACHE_RETURN;
|
|
|
8472 }
|
|
|
8473 #endif /* HAVE_TOOLBARS */
|
|
|
8474
|
|
|
8475 /* We still have to return the window the pointer is next to and its
|
|
|
8476 relative y position even if it is outside the x boundary. */
|
|
|
8477 if (x_coord < frm_left)
|
|
|
8478 x_coord = frm_left;
|
|
|
8479 else if (x_coord > frm_right)
|
|
|
8480 x_coord = frm_right;
|
|
|
8481
|
|
|
8482 /* Same in reverse. */
|
|
|
8483 if (y_coord < frm_top)
|
|
|
8484 y_coord = frm_top;
|
|
|
8485 else if (y_coord > frm_bottom)
|
|
|
8486 y_coord = frm_bottom;
|
|
|
8487
|
|
|
8488 /* Find what window the given coordinates are actually in. */
|
|
|
8489 window = f->root_window;
|
|
|
8490 *w = find_window_by_pixel_pos (x_coord, y_coord, window);
|
|
|
8491
|
|
|
8492 /* If we didn't find a window, we're done. */
|
|
|
8493 if (!*w)
|
|
|
8494 {
|
|
|
8495 UPDATE_CACHE_RETURN;
|
|
|
8496 }
|
|
|
8497 else if (position != OVER_NOTHING)
|
|
|
8498 {
|
|
|
8499 *closest = 0;
|
|
|
8500 *modeline_closest = -1;
|
|
|
8501
|
|
|
8502 if (high_y_coord <= frm_top || high_y_coord >= frm_bottom)
|
|
|
8503 {
|
|
|
8504 *w = 0;
|
|
|
8505 UPDATE_CACHE_RETURN;
|
|
|
8506 }
|
|
|
8507 }
|
|
|
8508
|
|
|
8509 /* Check if the window is a minibuffer but isn't active. */
|
|
|
8510 if (MINI_WINDOW_P (*w) && !minibuf_level)
|
|
|
8511 {
|
|
|
8512 /* Must reset the window value since some callers will ignore
|
|
|
8513 the return value if it is set. */
|
|
|
8514 *w = 0;
|
|
|
8515 UPDATE_CACHE_RETURN;
|
|
|
8516 }
|
|
|
8517
|
|
|
8518 /* See if the point is over window vertical divider */
|
|
|
8519 if (window_needs_vertical_divider (*w))
|
|
|
8520 {
|
|
|
8521 int div_x_high = WINDOW_RIGHT (*w);
|
|
|
8522 int div_x_low = div_x_high - window_divider_width (*w);
|
|
|
8523 int div_y_high = WINDOW_BOTTOM (*w);
|
|
|
8524 int div_y_low = WINDOW_TOP (*w);
|
|
|
8525
|
|
|
8526 if (div_x_low < x_coord && x_coord <= div_x_high &&
|
|
|
8527 div_y_low < y_coord && y_coord <= div_y_high)
|
|
|
8528 {
|
|
|
8529 low_x_coord = div_x_low;
|
|
|
8530 high_x_coord = div_x_high;
|
|
|
8531 low_y_coord = div_y_low;
|
|
|
8532 high_y_coord = div_y_high;
|
|
|
8533 position = OVER_V_DIVIDER;
|
|
|
8534 UPDATE_CACHE_RETURN;
|
|
|
8535 }
|
|
|
8536 }
|
|
|
8537
|
|
|
8538 dla = window_display_lines (*w, CURRENT_DISP);
|
|
|
8539
|
|
|
8540 for (*row = 0; *row < Dynarr_length (dla); (*row)++)
|
|
|
8541 {
|
|
|
8542 int really_over_nothing = 0;
|
|
|
8543 struct display_line *dl = Dynarr_atp (dla, *row);
|
|
|
8544
|
|
|
8545 if ((int) (dl->ypos - dl->ascent) <= y_coord
|
|
|
8546 && y_coord <= (int) (dl->ypos + dl->descent))
|
|
|
8547 {
|
|
|
8548 int check_margin_glyphs = 0;
|
|
|
8549 struct display_block *db = get_display_block_from_line (dl, TEXT);
|
|
|
8550 struct rune *rb = 0;
|
|
|
8551
|
|
|
8552 if (x_coord < dl->bounds.left_white
|
|
|
8553 || x_coord >= dl->bounds.right_white)
|
|
|
8554 check_margin_glyphs = 1;
|
|
|
8555
|
|
|
8556 low_y_coord = dl->ypos - dl->ascent;
|
|
|
8557 high_y_coord = dl->ypos + dl->descent + 1;
|
|
|
8558
|
|
|
8559 if (position == OVER_BORDER
|
|
|
8560 || position == OVER_OUTSIDE
|
|
|
8561 || check_margin_glyphs)
|
|
|
8562 {
|
|
|
8563 int x_check, left_bound;
|
|
|
8564
|
|
|
8565 if (check_margin_glyphs)
|
|
|
8566 {
|
|
|
8567 x_check = x_coord;
|
|
|
8568 left_bound = dl->bounds.left_white;
|
|
|
8569 }
|
|
|
8570 else
|
|
|
8571 {
|
|
|
8572 x_check = high_x_coord;
|
|
|
8573 left_bound = frm_left;
|
|
|
8574 }
|
|
|
8575
|
|
|
8576 if (Dynarr_length (db->runes))
|
|
|
8577 {
|
|
|
8578 if (x_check <= left_bound)
|
|
|
8579 {
|
|
|
8580 if (dl->modeline)
|
|
|
8581 *modeline_closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
8582 else
|
|
|
8583 *closest = Dynarr_atp (db->runes, 0)->bufpos;
|
|
|
8584 }
|
|
|
8585 else
|
|
|
8586 {
|
|
|
8587 if (dl->modeline)
|
|
|
8588 *modeline_closest =
|
|
|
8589 Dynarr_atp (db->runes,
|
|
|
8590 Dynarr_length (db->runes) - 1)->bufpos;
|
|
|
8591 else
|
|
|
8592 *closest =
|
|
|
8593 Dynarr_atp (db->runes,
|
|
|
8594 Dynarr_length (db->runes) - 1)->bufpos;
|
|
|
8595 }
|
|
|
8596
|
|
|
8597 if (dl->modeline)
|
|
|
8598 *modeline_closest += dl->offset;
|
|
|
8599 else
|
|
|
8600 *closest += dl->offset;
|
|
|
8601 }
|
|
|
8602 else
|
|
|
8603 {
|
|
|
8604 /* #### What should be here. */
|
|
|
8605 if (dl->modeline)
|
|
|
8606 *modeline_closest = 0;
|
|
|
8607 else
|
|
|
8608 *closest = 0;
|
|
|
8609 }
|
|
|
8610
|
|
|
8611 if (check_margin_glyphs)
|
|
|
8612 {
|
|
|
8613 if (x_coord < dl->bounds.left_in
|
|
|
8614 || x_coord >= dl->bounds.right_in)
|
|
|
8615 {
|
|
|
8616 /* If we are over the outside margins then we
|
|
|
8617 know the loop over the text block isn't going
|
|
|
8618 to accomplish anything. So we go ahead and
|
|
|
8619 set what information we can right here and
|
|
|
8620 return. */
|
|
|
8621 (*row)--;
|
|
|
8622 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
8623 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
8624 &low_x_coord, &high_x_coord);
|
|
|
8625
|
|
|
8626 UPDATE_CACHE_RETURN;
|
|
|
8627 }
|
|
|
8628 }
|
|
|
8629 else
|
|
|
8630 UPDATE_CACHE_RETURN;
|
|
|
8631 }
|
|
|
8632
|
|
|
8633 for (*col = 0; *col <= Dynarr_length (db->runes); (*col)++)
|
|
|
8634 {
|
|
|
8635 int past_end = (*col == Dynarr_length (db->runes));
|
|
|
8636
|
|
|
8637 if (!past_end)
|
|
|
8638 rb = Dynarr_atp (db->runes, *col);
|
|
|
8639
|
|
|
8640 if (past_end ||
|
|
|
8641 (rb->xpos <= x_coord && x_coord < rb->xpos + rb->width))
|
|
|
8642 {
|
|
|
8643 if (past_end)
|
|
|
8644 {
|
|
|
8645 (*col)--;
|
|
|
8646 rb = Dynarr_atp (db->runes, *col);
|
|
|
8647 }
|
|
|
8648
|
|
|
8649 *bufpos = rb->bufpos + dl->offset;
|
|
|
8650 low_x_coord = rb->xpos;
|
|
|
8651 high_x_coord = rb->xpos + rb->width;
|
|
|
8652
|
|
|
8653 if (rb->type == RUNE_DGLYPH)
|
|
|
8654 {
|
|
|
8655 int elt = *col + 1;
|
|
|
8656
|
|
|
8657 /* Find the first character after the glyph. */
|
|
|
8658 while (elt < Dynarr_length (db->runes))
|
|
|
8659 {
|
|
|
8660 if (Dynarr_atp (db->runes, elt)->type != RUNE_DGLYPH)
|
|
|
8661 {
|
|
|
8662 if (dl->modeline)
|
|
|
8663 *modeline_closest =
|
|
|
8664 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
8665 dl->offset);
|
|
|
8666 else
|
|
|
8667 *closest =
|
|
|
8668 (Dynarr_atp (db->runes, elt)->bufpos +
|
|
|
8669 dl->offset);
|
|
|
8670 break;
|
|
|
8671 }
|
|
|
8672
|
|
|
8673 elt++;
|
|
|
8674 }
|
|
|
8675
|
|
|
8676 /* In this case we failed to find a non-glyph
|
|
|
8677 character so we return the last position
|
|
|
8678 displayed on the line. */
|
|
|
8679 if (elt == Dynarr_length (db->runes))
|
|
|
8680 {
|
|
|
8681 if (dl->modeline)
|
|
|
8682 *modeline_closest = dl->end_bufpos + dl->offset;
|
|
|
8683 else
|
|
|
8684 *closest = dl->end_bufpos + dl->offset;
|
|
|
8685 really_over_nothing = 1;
|
|
|
8686 }
|
|
|
8687 }
|
|
|
8688 else
|
|
|
8689 {
|
|
|
8690 if (dl->modeline)
|
|
|
8691 *modeline_closest = rb->bufpos + dl->offset;
|
|
|
8692 else
|
|
|
8693 *closest = rb->bufpos + dl->offset;
|
|
|
8694 }
|
|
|
8695
|
|
|
8696 if (dl->modeline)
|
|
|
8697 {
|
|
|
8698 *row = window_displayed_height (*w);
|
|
|
8699
|
|
|
8700 if (position == OVER_NOTHING)
|
|
|
8701 position = OVER_MODELINE;
|
|
|
8702
|
|
|
8703 if (rb->type == RUNE_DGLYPH)
|
|
|
8704 {
|
|
|
8705 *obj1 = rb->object.dglyph.glyph;
|
|
|
8706 *obj2 = rb->object.dglyph.extent;
|
|
|
8707 }
|
|
|
8708 else if (rb->type == RUNE_CHAR)
|
|
|
8709 {
|
|
|
8710 *obj1 = Qnil;
|
|
|
8711 *obj2 = Qnil;
|
|
|
8712 }
|
|
|
8713 else
|
|
|
8714 {
|
|
|
8715 *obj1 = Qnil;
|
|
|
8716 *obj2 = Qnil;
|
|
|
8717 }
|
|
|
8718
|
|
|
8719 UPDATE_CACHE_RETURN;
|
|
|
8720 }
|
|
|
8721 else if (past_end
|
|
|
8722 || (rb->type == RUNE_CHAR
|
|
|
8723 && rb->object.chr.ch == '\n'))
|
|
|
8724 {
|
|
|
8725 (*row)--;
|
|
|
8726 /* At this point we may have glyphs in the right
|
|
|
8727 inside margin. */
|
|
|
8728 if (check_margin_glyphs)
|
|
|
8729 get_position_object (dl, obj1, obj2, x_coord,
|
|
|
8730 &low_x_coord, &high_x_coord);
|
|
|
8731 UPDATE_CACHE_RETURN;
|
|
|
8732 }
|
|
|
8733 else
|
|
|
8734 {
|
|
|
8735 (*row)--;
|
|
|
8736 if (rb->type == RUNE_DGLYPH)
|
|
|
8737 {
|
|
|
8738 *obj1 = rb->object.dglyph.glyph;
|
|
|
8739 *obj2 = rb->object.dglyph.extent;
|
|
|
8740 }
|
|
|
8741 else if (rb->type == RUNE_CHAR)
|
|
|
8742 {
|
|
|
8743 *obj1 = Qnil;
|
|
|
8744 *obj2 = Qnil;
|
|
|
8745 }
|
|
|
8746 else
|
|
|
8747 {
|
|
|
8748 *obj1 = Qnil;
|
|
|
8749 *obj2 = Qnil;
|
|
|
8750 }
|
|
|
8751
|
|
|
8752 *obj_x = x_coord - rb->xpos;
|
|
|
8753 *obj_y = y_coord - (dl->ypos - dl->ascent);
|
|
|
8754
|
|
|
8755 /* At this point we may have glyphs in the left
|
|
|
8756 inside margin. */
|
|
|
8757 if (check_margin_glyphs)
|
|
|
8758 get_position_object (dl, obj1, obj2, x_coord, 0, 0);
|
|
|
8759
|
|
|
8760 if (position == OVER_NOTHING && !really_over_nothing)
|
|
|
8761 position = OVER_TEXT;
|
|
|
8762
|
|
|
8763 UPDATE_CACHE_RETURN;
|
|
|
8764 }
|
|
|
8765 }
|
|
|
8766 }
|
|
|
8767 }
|
|
|
8768 }
|
|
|
8769
|
|
|
8770 *row = Dynarr_length (dla) - 1;
|
|
|
8771 if (FRAME_WIN_P (f))
|
|
|
8772 {
|
|
|
8773 int bot_elt = Dynarr_length (dla) - 1;
|
|
|
8774
|
|
|
8775 if (bot_elt >= 0)
|
|
|
8776 {
|
|
|
8777 struct display_line *dl = Dynarr_atp (dla, bot_elt);
|
|
|
8778 int adj_area = y_coord - (dl->ypos + dl->descent);
|
|
|
8779 Lisp_Object lwin;
|
|
|
8780 int defheight;
|
|
|
8781
|
|
|
8782 XSETWINDOW (lwin, *w);
|
|
|
8783 default_face_height_and_width (lwin, 0, &defheight);
|
|
|
8784
|
|
|
8785 *row += (adj_area / defheight);
|
|
|
8786 }
|
|
|
8787 }
|
|
|
8788
|
|
|
8789 /* #### This should be checked out some more to determine what
|
|
|
8790 should really be going on. */
|
|
|
8791 if (!MARKERP ((*w)->start[CURRENT_DISP]))
|
|
|
8792 *closest = 0;
|
|
|
8793 else
|
|
|
8794 *closest = end_of_last_line (*w,
|
|
|
8795 marker_position ((*w)->start[CURRENT_DISP]));
|
|
|
8796 *col = 0;
|
|
|
8797 UPDATE_CACHE_RETURN;
|
|
|
8798 }
|
|
|
8799 #undef UPDATE_CACHE_RETURN
|
|
|
8800
|
|
|
8801
|
|
|
8802 /***************************************************************************/
|
|
|
8803 /* */
|
|
|
8804 /* Lisp functions */
|
|
|
8805 /* */
|
|
|
8806 /***************************************************************************/
|
|
|
8807
|
|
|
8808 DEFUN ("redisplay-echo-area", Fredisplay_echo_area, 0, 0, 0, /*
|
|
|
8809 Ensure that all minibuffers are correctly showing the echo area.
|
|
|
8810 */
|
|
|
8811 ())
|
|
|
8812 {
|
|
|
8813 Lisp_Object devcons, concons;
|
|
|
8814
|
|
|
8815 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
8816 {
|
|
|
8817 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
8818 Lisp_Object frmcons;
|
|
|
8819
|
|
|
8820 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
8821 {
|
|
|
8822 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
8823
|
|
|
8824 if (FRAME_REPAINT_P (f) && FRAME_HAS_MINIBUF_P (f))
|
|
|
8825 {
|
|
|
8826 Lisp_Object window = FRAME_MINIBUF_WINDOW (f);
|
|
|
8827 /*
|
|
|
8828 * If the frame size has changed, there may be random
|
|
|
8829 * chud on the screen left from previous messages
|
|
|
8830 * because redisplay_frame hasn't been called yet.
|
|
|
8831 * Clear the screen to get rid of the potential mess.
|
|
|
8832 */
|
|
|
8833 if (f->echo_area_garbaged)
|
|
|
8834 {
|
|
|
8835 DEVMETH (d, clear_frame, (f));
|
|
|
8836 f->echo_area_garbaged = 0;
|
|
|
8837 }
|
|
|
8838 redisplay_window (window, 0);
|
|
|
8839 call_redisplay_end_triggers (XWINDOW (window), 0);
|
|
|
8840 }
|
|
|
8841 }
|
|
|
8842
|
|
|
8843 /* We now call the output_end routine for tty frames. We delay
|
|
|
8844 doing so in order to avoid cursor flicker. So much for 100%
|
|
|
8845 encapsulation. */
|
|
|
8846 if (DEVICE_TTY_P (d))
|
|
|
8847 DEVMETH (d, output_end, (d));
|
|
|
8848 }
|
|
|
8849
|
|
|
8850 return Qnil;
|
|
|
8851 }
|
|
|
8852
|
|
|
8853 static Lisp_Object
|
|
|
8854 restore_disable_preemption_value (Lisp_Object value)
|
|
|
8855 {
|
|
|
8856 disable_preemption = XINT (value);
|
|
|
8857 return Qnil;
|
|
|
8858 }
|
|
|
8859
|
|
|
8860 DEFUN ("redraw-frame", Fredraw_frame, 0, 2, 0, /*
|
|
|
8861 Clear frame FRAME and output again what is supposed to appear on it.
|
|
|
8862 FRAME defaults to the selected frame if omitted.
|
|
|
8863 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8864 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8865 input and is guaranteed to proceed to completion.
|
|
|
8866 */
|
|
|
8867 (frame, no_preempt))
|
|
|
8868 {
|
|
|
8869 struct frame *f = decode_frame (frame);
|
|
|
8870 int count = specpdl_depth ();
|
|
|
8871
|
|
|
8872 if (!NILP (no_preempt))
|
|
|
8873 {
|
|
|
8874 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8875 make_int (disable_preemption));
|
|
|
8876 disable_preemption++;
|
|
|
8877 }
|
|
|
8878
|
|
|
8879 f->clear = 1;
|
|
|
8880 redisplay_frame (f, 1);
|
|
|
8881
|
|
|
8882 return unbind_to (count, Qnil);
|
|
|
8883 }
|
|
|
8884
|
|
|
8885 DEFUN ("redisplay-frame", Fredisplay_frame, 0, 2, 0, /*
|
|
|
8886 Ensure that FRAME's contents are correctly displayed.
|
|
|
8887 This differs from `redraw-frame' in that it only redraws what needs to
|
|
|
8888 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
8889 the frame.
|
|
|
8890 FRAME defaults to the selected frame if omitted.
|
|
|
8891 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8892 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8893 input and is guaranteed to proceed to completion.
|
|
|
8894 */
|
|
|
8895 (frame, no_preempt))
|
|
|
8896 {
|
|
|
8897 struct frame *f = decode_frame (frame);
|
|
|
8898 int count = specpdl_depth ();
|
|
|
8899
|
|
|
8900 if (!NILP (no_preempt))
|
|
|
8901 {
|
|
|
8902 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8903 make_int (disable_preemption));
|
|
|
8904 disable_preemption++;
|
|
|
8905 }
|
|
|
8906
|
|
|
8907 redisplay_frame (f, 1);
|
|
|
8908
|
|
|
8909 return unbind_to (count, Qnil);
|
|
|
8910 }
|
|
|
8911
|
|
|
8912 DEFUN ("redraw-device", Fredraw_device, 0, 2, 0, /*
|
|
|
8913 Clear device DEVICE and output again what is supposed to appear on it.
|
|
|
8914 DEVICE defaults to the selected device if omitted.
|
|
|
8915 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8916 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8917 input and is guaranteed to proceed to completion.
|
|
|
8918 */
|
|
|
8919 (device, no_preempt))
|
|
|
8920 {
|
|
|
8921 struct device *d = decode_device (device);
|
|
|
8922 Lisp_Object frmcons;
|
|
|
8923 int count = specpdl_depth ();
|
|
|
8924
|
|
|
8925 if (!NILP (no_preempt))
|
|
|
8926 {
|
|
|
8927 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8928 make_int (disable_preemption));
|
|
|
8929 disable_preemption++;
|
|
|
8930 }
|
|
|
8931
|
|
|
8932 DEVICE_FRAME_LOOP (frmcons, d)
|
|
|
8933 {
|
|
|
8934 XFRAME (XCAR (frmcons))->clear = 1;
|
|
|
8935 }
|
|
440
|
8936 redisplay_device (d, 0);
|
|
428
|
8937
|
|
|
8938 return unbind_to (count, Qnil);
|
|
|
8939 }
|
|
|
8940
|
|
|
8941 DEFUN ("redisplay-device", Fredisplay_device, 0, 2, 0, /*
|
|
|
8942 Ensure that DEVICE's contents are correctly displayed.
|
|
|
8943 This differs from `redraw-device' in that it only redraws what needs to
|
|
|
8944 be updated, as opposed to unconditionally clearing and redrawing
|
|
|
8945 the device.
|
|
|
8946 DEVICE defaults to the selected device if omitted.
|
|
|
8947 Normally, redisplay is preempted as normal if input arrives. However,
|
|
|
8948 if optional second arg NO-PREEMPT is non-nil, redisplay will not stop for
|
|
|
8949 input and is guaranteed to proceed to completion.
|
|
|
8950 */
|
|
|
8951 (device, no_preempt))
|
|
|
8952 {
|
|
|
8953 struct device *d = decode_device (device);
|
|
|
8954 int count = specpdl_depth ();
|
|
|
8955
|
|
|
8956 if (!NILP (no_preempt))
|
|
|
8957 {
|
|
|
8958 record_unwind_protect (restore_disable_preemption_value,
|
|
|
8959 make_int (disable_preemption));
|
|
|
8960 disable_preemption++;
|
|
|
8961 }
|
|
|
8962
|
|
440
|
8963 redisplay_device (d, 0);
|
|
428
|
8964
|
|
|
8965 return unbind_to (count, Qnil);
|
|
|
8966 }
|
|
|
8967
|
|
|
8968 /* Big lie. Big lie. This will force all modelines to be updated
|
|
|
8969 regardless if the all flag is set or not. It remains in existence
|
|
|
8970 solely for backwards compatibility. */
|
|
|
8971 DEFUN ("redraw-modeline", Fredraw_modeline, 0, 1, 0, /*
|
|
|
8972 Force the modeline of the current buffer to be redisplayed.
|
|
|
8973 With optional non-nil ALL, force redisplay of all modelines.
|
|
|
8974 */
|
|
|
8975 (all))
|
|
|
8976 {
|
|
|
8977 MARK_MODELINE_CHANGED;
|
|
|
8978 return Qnil;
|
|
|
8979 }
|
|
|
8980
|
|
|
8981 DEFUN ("force-cursor-redisplay", Fforce_cursor_redisplay, 0, 1, 0, /*
|
|
|
8982 Force an immediate update of the cursor on FRAME.
|
|
|
8983 FRAME defaults to the selected frame if omitted.
|
|
|
8984 */
|
|
|
8985 (frame))
|
|
|
8986 {
|
|
|
8987 redisplay_redraw_cursor (decode_frame (frame), 1);
|
|
|
8988 return Qnil;
|
|
|
8989 }
|
|
|
8990
|
|
|
8991
|
|
|
8992 /***************************************************************************/
|
|
|
8993 /* */
|
|
|
8994 /* Lisp-variable change triggers */
|
|
|
8995 /* */
|
|
|
8996 /***************************************************************************/
|
|
|
8997
|
|
|
8998 static void
|
|
|
8999 margin_width_changed_in_frame (Lisp_Object specifier, struct frame *f,
|
|
|
9000 Lisp_Object oldval)
|
|
|
9001 {
|
|
|
9002 /* Nothing to be done? */
|
|
|
9003 }
|
|
|
9004
|
|
|
9005 int
|
|
|
9006 redisplay_variable_changed (Lisp_Object sym, Lisp_Object *val,
|
|
|
9007 Lisp_Object in_object, int flags)
|
|
|
9008 {
|
|
|
9009 /* #### clip_changed should really be renamed something like
|
|
|
9010 global_redisplay_change. */
|
|
|
9011 MARK_CLIP_CHANGED;
|
|
|
9012 return 0;
|
|
|
9013 }
|
|
|
9014
|
|
|
9015 /* This is called if the built-in glyphs have their properties
|
|
|
9016 changed. */
|
|
|
9017 void
|
|
|
9018 redisplay_glyph_changed (Lisp_Object glyph, Lisp_Object property,
|
|
|
9019 Lisp_Object locale)
|
|
|
9020 {
|
|
|
9021 if (WINDOWP (locale))
|
|
|
9022 {
|
|
|
9023 MARK_FRAME_GLYPHS_CHANGED (XFRAME (WINDOW_FRAME (XWINDOW (locale))));
|
|
|
9024 }
|
|
|
9025 else if (FRAMEP (locale))
|
|
|
9026 {
|
|
|
9027 MARK_FRAME_GLYPHS_CHANGED (XFRAME (locale));
|
|
|
9028 }
|
|
|
9029 else if (DEVICEP (locale))
|
|
|
9030 {
|
|
|
9031 Lisp_Object frmcons;
|
|
|
9032 DEVICE_FRAME_LOOP (frmcons, XDEVICE (locale))
|
|
|
9033 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
|
9034 }
|
|
|
9035 else if (CONSOLEP (locale))
|
|
|
9036 {
|
|
|
9037 Lisp_Object frmcons, devcons;
|
|
|
9038 CONSOLE_FRAME_LOOP_NO_BREAK (frmcons, devcons, XCONSOLE (locale))
|
|
|
9039 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
|
9040 }
|
|
|
9041 else /* global or buffer */
|
|
|
9042 {
|
|
|
9043 Lisp_Object frmcons, devcons, concons;
|
|
|
9044 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
9045 MARK_FRAME_GLYPHS_CHANGED (XFRAME (XCAR (frmcons)));
|
|
|
9046 }
|
|
|
9047 }
|
|
|
9048
|
|
|
9049 static void
|
|
|
9050 text_cursor_visible_p_changed (Lisp_Object specifier, struct window *w,
|
|
|
9051 Lisp_Object oldval)
|
|
|
9052 {
|
|
|
9053 if (XFRAME (w->frame)->init_finished)
|
|
|
9054 Fforce_cursor_redisplay (w->frame);
|
|
|
9055 }
|
|
|
9056
|
|
|
9057 #ifdef MEMORY_USAGE_STATS
|
|
|
9058
|
|
|
9059
|
|
|
9060 /***************************************************************************/
|
|
|
9061 /* */
|
|
|
9062 /* memory usage computation */
|
|
|
9063 /* */
|
|
|
9064 /***************************************************************************/
|
|
|
9065
|
|
|
9066 static int
|
|
|
9067 compute_rune_dynarr_usage (rune_dynarr *dyn, struct overhead_stats *ovstats)
|
|
|
9068 {
|
|
|
9069 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
|
9070 }
|
|
|
9071
|
|
|
9072 static int
|
|
|
9073 compute_display_block_dynarr_usage (display_block_dynarr *dyn,
|
|
|
9074 struct overhead_stats *ovstats)
|
|
|
9075 {
|
|
|
9076 int total, i;
|
|
|
9077
|
|
|
9078 if (!dyn)
|
|
|
9079 return 0;
|
|
|
9080
|
|
|
9081 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
9082 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
9083 total += compute_rune_dynarr_usage (Dynarr_at (dyn, i).runes, ovstats);
|
|
|
9084
|
|
|
9085 return total;
|
|
|
9086 }
|
|
|
9087
|
|
|
9088 static int
|
|
|
9089 compute_glyph_block_dynarr_usage (glyph_block_dynarr *dyn,
|
|
|
9090 struct overhead_stats *ovstats)
|
|
|
9091 {
|
|
|
9092 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
|
9093 }
|
|
|
9094
|
|
|
9095 int
|
|
|
9096 compute_display_line_dynarr_usage (display_line_dynarr *dyn,
|
|
|
9097 struct overhead_stats *ovstats)
|
|
|
9098 {
|
|
|
9099 int total, i;
|
|
|
9100
|
|
|
9101 if (!dyn)
|
|
|
9102 return 0;
|
|
|
9103
|
|
|
9104 total = Dynarr_memory_usage (dyn, ovstats);
|
|
|
9105 for (i = 0; i < Dynarr_largest (dyn); i++)
|
|
|
9106 {
|
|
|
9107 struct display_line *dl = &Dynarr_at (dyn, i);
|
|
|
9108 total += compute_display_block_dynarr_usage(dl->display_blocks, ovstats);
|
|
|
9109 total += compute_glyph_block_dynarr_usage (dl->left_glyphs, ovstats);
|
|
|
9110 total += compute_glyph_block_dynarr_usage (dl->right_glyphs, ovstats);
|
|
|
9111 }
|
|
|
9112
|
|
|
9113 return total;
|
|
|
9114 }
|
|
|
9115
|
|
|
9116 int
|
|
|
9117 compute_line_start_cache_dynarr_usage (line_start_cache_dynarr *dyn,
|
|
|
9118 struct overhead_stats *ovstats)
|
|
|
9119 {
|
|
|
9120 return dyn ? Dynarr_memory_usage (dyn, ovstats) : 0;
|
|
|
9121 }
|
|
|
9122
|
|
|
9123 #endif /* MEMORY_USAGE_STATS */
|
|
|
9124
|
|
|
9125
|
|
|
9126 /***************************************************************************/
|
|
|
9127 /* */
|
|
|
9128 /* initialization */
|
|
|
9129 /* */
|
|
|
9130 /***************************************************************************/
|
|
|
9131
|
|
|
9132 void
|
|
|
9133 init_redisplay (void)
|
|
|
9134 {
|
|
|
9135 disable_preemption = 0;
|
|
|
9136 preemption_count = 0;
|
|
|
9137 max_preempts = INIT_MAX_PREEMPTS;
|
|
|
9138
|
|
|
9139 #ifndef PDUMP
|
|
|
9140 if (!initialized)
|
|
|
9141 #endif
|
|
|
9142 {
|
|
440
|
9143 if (!cmotion_display_lines)
|
|
|
9144 cmotion_display_lines = Dynarr_new (display_line);
|
|
|
9145 if (!mode_spec_bufbyte_string)
|
|
|
9146 mode_spec_bufbyte_string = Dynarr_new (Bufbyte);
|
|
|
9147 if (!formatted_string_extent_dynarr)
|
|
|
9148 formatted_string_extent_dynarr = Dynarr_new (EXTENT);
|
|
|
9149 if (!formatted_string_extent_start_dynarr)
|
|
|
9150 formatted_string_extent_start_dynarr = Dynarr_new (Bytecount);
|
|
|
9151 if (!formatted_string_extent_end_dynarr)
|
|
|
9152 formatted_string_extent_end_dynarr = Dynarr_new (Bytecount);
|
|
|
9153 if (!internal_cache)
|
|
|
9154 internal_cache = Dynarr_new (line_start_cache);
|
|
428
|
9155 }
|
|
|
9156
|
|
|
9157 /* window system is nil when in -batch mode */
|
|
|
9158 if (!initialized || noninteractive)
|
|
|
9159 return;
|
|
|
9160
|
|
|
9161 /* If the user wants to use a window system, we shouldn't bother
|
|
|
9162 initializing the terminal. This is especially important when the
|
|
|
9163 terminal is so dumb that emacs gives up before and doesn't bother
|
|
|
9164 using the window system.
|
|
|
9165
|
|
|
9166 If the DISPLAY environment variable is set, try to use X, and die
|
|
|
9167 with an error message if that doesn't work. */
|
|
|
9168
|
|
|
9169 #ifdef HAVE_X_WINDOWS
|
|
|
9170 if (!strcmp (display_use, "x"))
|
|
|
9171 {
|
|
|
9172 /* Some stuff checks this way early. */
|
|
|
9173 Vwindow_system = Qx;
|
|
|
9174 Vinitial_window_system = Qx;
|
|
|
9175 return;
|
|
|
9176 }
|
|
|
9177 #endif /* HAVE_X_WINDOWS */
|
|
|
9178
|
|
|
9179 #ifdef HAVE_MS_WINDOWS
|
|
|
9180 if (!strcmp (display_use, "mswindows"))
|
|
|
9181 {
|
|
|
9182 /* Some stuff checks this way early. */
|
|
|
9183 Vwindow_system = Qmswindows;
|
|
|
9184 Vinitial_window_system = Qmswindows;
|
|
|
9185 return;
|
|
|
9186 }
|
|
|
9187 #endif /* HAVE_MS_WINDOWS */
|
|
|
9188
|
|
|
9189 #ifdef HAVE_TTY
|
|
|
9190 /* If no window system has been specified, try to use the terminal. */
|
|
|
9191 if (!isatty (0))
|
|
|
9192 {
|
|
|
9193 stderr_out ("XEmacs: standard input is not a tty\n");
|
|
|
9194 exit (1);
|
|
|
9195 }
|
|
|
9196
|
|
|
9197 /* Look at the TERM variable */
|
|
|
9198 if (!getenv ("TERM"))
|
|
|
9199 {
|
|
|
9200 stderr_out ("Please set the environment variable TERM; see tset(1).\n");
|
|
|
9201 exit (1);
|
|
|
9202 }
|
|
|
9203
|
|
|
9204 Vinitial_window_system = Qtty;
|
|
|
9205 return;
|
|
|
9206 #else /* not HAVE_TTY */
|
|
|
9207 /* No DISPLAY specified, and no TTY support. */
|
|
|
9208 stderr_out ("XEmacs: Cannot open display.\n\
|
|
|
9209 Please set the environmental variable DISPLAY to an appropriate value.\n");
|
|
|
9210 exit (1);
|
|
|
9211 #endif
|
|
|
9212 /* Unreached. */
|
|
|
9213 }
|
|
|
9214
|
|
|
9215 void
|
|
|
9216 syms_of_redisplay (void)
|
|
|
9217 {
|
|
|
9218 defsymbol (&Qcursor_in_echo_area, "cursor-in-echo-area");
|
|
|
9219 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
9220 defsymbol (&Qpre_redisplay_hook, "pre-redisplay-hook");
|
|
|
9221 defsymbol (&Qpost_redisplay_hook, "post-redisplay-hook");
|
|
|
9222 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
|
9223 defsymbol (&Qdisplay_warning_buffer, "display-warning-buffer");
|
|
|
9224 defsymbol (&Qbar_cursor, "bar-cursor");
|
|
|
9225 defsymbol (&Qredisplay_end_trigger_functions,
|
|
|
9226 "redisplay-end-trigger-functions");
|
|
|
9227
|
|
|
9228 DEFSUBR (Fredisplay_echo_area);
|
|
|
9229 DEFSUBR (Fredraw_frame);
|
|
|
9230 DEFSUBR (Fredisplay_frame);
|
|
|
9231 DEFSUBR (Fredraw_device);
|
|
|
9232 DEFSUBR (Fredisplay_device);
|
|
|
9233 DEFSUBR (Fredraw_modeline);
|
|
|
9234 DEFSUBR (Fforce_cursor_redisplay);
|
|
|
9235 }
|
|
|
9236
|
|
|
9237 void
|
|
|
9238 reinit_vars_of_redisplay (void)
|
|
|
9239 {
|
|
|
9240 updating_line_start_cache = 0;
|
|
|
9241 }
|
|
|
9242
|
|
|
9243 void
|
|
|
9244 vars_of_redisplay (void)
|
|
|
9245 {
|
|
|
9246 reinit_vars_of_redisplay ();
|
|
|
9247
|
|
|
9248 #if 0
|
|
|
9249 staticpro (&last_arrow_position);
|
|
|
9250 staticpro (&last_arrow_string);
|
|
|
9251 last_arrow_position = Qnil;
|
|
|
9252 last_arrow_string = Qnil;
|
|
|
9253 #endif /* 0 */
|
|
|
9254
|
|
|
9255 /* #### Probably temporary */
|
|
|
9256 DEFVAR_INT ("redisplay-cache-adjustment", &cache_adjustment /*
|
|
|
9257 \(Temporary) Setting this will impact the performance of the internal
|
|
|
9258 line start cache.
|
|
|
9259 */ );
|
|
|
9260 cache_adjustment = 2;
|
|
|
9261
|
|
|
9262 DEFVAR_INT_MAGIC ("pixel-vertical-clip-threshold", &vertical_clip /*
|
|
|
9263 Minimum pixel height for clipped bottom display line.
|
|
|
9264 A clipped line shorter than this won't be displayed.
|
|
|
9265 */ ,
|
|
|
9266 redisplay_variable_changed);
|
|
|
9267 vertical_clip = 5;
|
|
|
9268
|
|
|
9269 DEFVAR_INT_MAGIC ("pixel-horizontal-clip-threshold", &horizontal_clip /*
|
|
|
9270 Minimum visible area for clipped glyphs at right boundary.
|
|
|
9271 Clipped glyphs shorter than this won't be displayed.
|
|
|
9272 Only pixmap glyph instances are currently allowed to be clipped.
|
|
|
9273 */ ,
|
|
|
9274 redisplay_variable_changed);
|
|
|
9275 horizontal_clip = 5;
|
|
|
9276
|
|
|
9277 DEFVAR_LISP ("global-mode-string", &Vglobal_mode_string /*
|
|
|
9278 String displayed by modeline-format's "%m" specification.
|
|
|
9279 */ );
|
|
|
9280 Vglobal_mode_string = Qnil;
|
|
|
9281
|
|
|
9282 DEFVAR_LISP_MAGIC ("overlay-arrow-position", &Voverlay_arrow_position /*
|
|
|
9283 Marker for where to display an arrow on top of the buffer text.
|
|
|
9284 This must be the beginning of a line in order to work.
|
|
|
9285 See also `overlay-arrow-string'.
|
|
|
9286 */ ,
|
|
|
9287 redisplay_variable_changed);
|
|
|
9288 Voverlay_arrow_position = Qnil;
|
|
|
9289
|
|
|
9290 DEFVAR_LISP_MAGIC ("overlay-arrow-string", &Voverlay_arrow_string /*
|
|
|
9291 String to display as an arrow. See also `overlay-arrow-position'.
|
|
|
9292 */ ,
|
|
|
9293 redisplay_variable_changed);
|
|
|
9294 Voverlay_arrow_string = Qnil;
|
|
|
9295
|
|
|
9296 DEFVAR_INT ("scroll-step", &scroll_step /*
|
|
|
9297 *The number of lines to try scrolling a window by when point moves out.
|
|
|
9298 If that fails to bring point back on frame, point is centered instead.
|
|
|
9299 If this is zero, point is always centered after it moves off screen.
|
|
|
9300 */ );
|
|
|
9301 scroll_step = 0;
|
|
|
9302
|
|
|
9303 DEFVAR_INT ("scroll-conservatively", &scroll_conservatively /*
|
|
|
9304 *Scroll up to this many lines, to bring point back on screen.
|
|
|
9305 */ );
|
|
|
9306 scroll_conservatively = 0;
|
|
|
9307
|
|
|
9308 DEFVAR_BOOL_MAGIC ("truncate-partial-width-windows",
|
|
|
9309 &truncate_partial_width_windows /*
|
|
|
9310 *Non-nil means truncate lines in all windows less than full frame wide.
|
|
|
9311 */ ,
|
|
|
9312 redisplay_variable_changed);
|
|
|
9313 truncate_partial_width_windows = 1;
|
|
|
9314
|
|
|
9315 DEFVAR_BOOL ("visible-bell", &visible_bell /*
|
|
|
9316 *Non-nil means try to flash the frame to represent a bell.
|
|
|
9317 */ );
|
|
|
9318 visible_bell = 0;
|
|
|
9319
|
|
|
9320 DEFVAR_BOOL ("no-redraw-on-reenter", &no_redraw_on_reenter /*
|
|
|
9321 *Non-nil means no need to redraw entire frame after suspending.
|
|
|
9322 A non-nil value is useful if the terminal can automatically preserve
|
|
|
9323 Emacs's frame display when you reenter Emacs.
|
|
|
9324 It is up to you to set this variable if your terminal can do that.
|
|
|
9325 */ );
|
|
|
9326 no_redraw_on_reenter = 0;
|
|
|
9327
|
|
|
9328 DEFVAR_LISP ("window-system", &Vwindow_system /*
|
|
|
9329 A symbol naming the window-system under which Emacs is running,
|
|
|
9330 such as `x', or nil if emacs is running on an ordinary terminal.
|
|
|
9331
|
|
|
9332 Do not use this variable, except for GNU Emacs compatibility, as it
|
|
|
9333 gives wrong values in a multi-device environment. Use `console-type'
|
|
|
9334 instead.
|
|
|
9335 */ );
|
|
|
9336 Vwindow_system = Qnil;
|
|
|
9337
|
|
|
9338 /* #### Temporary shit until window-system is eliminated. */
|
|
|
9339 DEFVAR_CONST_LISP ("initial-window-system", &Vinitial_window_system /*
|
|
|
9340 DON'T TOUCH
|
|
|
9341 */ );
|
|
|
9342 Vinitial_window_system = Qnil;
|
|
|
9343
|
|
|
9344 DEFVAR_BOOL ("cursor-in-echo-area", &cursor_in_echo_area /*
|
|
|
9345 Non-nil means put cursor in minibuffer, at end of any message there.
|
|
|
9346 */ );
|
|
|
9347 cursor_in_echo_area = 0;
|
|
|
9348
|
|
|
9349 /* #### Shouldn't this be generalized as follows:
|
|
|
9350
|
|
|
9351 if nil, use block cursor.
|
|
|
9352 if a number, use a bar cursor of that width.
|
|
|
9353 Otherwise, use a 1-pixel bar cursor.
|
|
|
9354
|
|
|
9355 #### Or better yet, this variable should be trashed entirely
|
|
|
9356 (use a Lisp-magic variable to maintain compatibility)
|
|
|
9357 and a specifier `cursor-shape' added, which allows a block
|
|
|
9358 cursor, a bar cursor, a flashing block or bar cursor,
|
|
|
9359 maybe a caret cursor, etc. */
|
|
|
9360
|
|
|
9361 DEFVAR_LISP ("bar-cursor", &Vbar_cursor /*
|
|
|
9362 Use vertical bar cursor if non-nil. If t width is 1 pixel, otherwise 2.
|
|
|
9363 */ );
|
|
|
9364 Vbar_cursor = Qnil;
|
|
|
9365
|
|
|
9366 #ifndef INHIBIT_REDISPLAY_HOOKS
|
|
|
9367 xxDEFVAR_LISP ("pre-redisplay-hook", &Vpre_redisplay_hook /*
|
|
|
9368 Function or functions to run before every redisplay.
|
|
|
9369 Functions on this hook must be careful to avoid signalling errors!
|
|
|
9370 */ );
|
|
|
9371 Vpre_redisplay_hook = Qnil;
|
|
|
9372
|
|
|
9373 xxDEFVAR_LISP ("post-redisplay-hook", &Vpost_redisplay_hook /*
|
|
|
9374 Function or functions to run after every redisplay.
|
|
|
9375 Functions on this hook must be careful to avoid signalling errors!
|
|
|
9376 */ );
|
|
|
9377 Vpost_redisplay_hook = Qnil;
|
|
|
9378 #endif /* INHIBIT_REDISPLAY_HOOKS */
|
|
|
9379
|
|
|
9380 DEFVAR_INT ("display-warning-tick", &display_warning_tick /*
|
|
|
9381 Bump this to tell the C code to call `display-warning-buffer'
|
|
|
9382 at next redisplay. You should not normally change this; the function
|
|
|
9383 `display-warning' automatically does this at appropriate times.
|
|
|
9384 */ );
|
|
|
9385 display_warning_tick = 0;
|
|
|
9386
|
|
|
9387 DEFVAR_BOOL ("inhibit-warning-display", &inhibit_warning_display /*
|
|
|
9388 Non-nil means inhibit display of warning messages.
|
|
|
9389 You should *bind* this, not set it. Any pending warning messages
|
|
|
9390 will be displayed when the binding no longer applies.
|
|
|
9391 */ );
|
|
|
9392 /* reset to 0 by startup.el after the splash screen has displayed.
|
|
|
9393 This way, the warnings don't obliterate the splash screen. */
|
|
|
9394 inhibit_warning_display = 1;
|
|
|
9395
|
|
|
9396 DEFVAR_LISP ("window-size-change-functions",
|
|
|
9397 &Vwindow_size_change_functions /*
|
|
|
9398 Not currently implemented.
|
|
|
9399 Functions called before redisplay, if window sizes have changed.
|
|
|
9400 The value should be a list of functions that take one argument.
|
|
|
9401 Just before redisplay, for each frame, if any of its windows have changed
|
|
|
9402 size since the last redisplay, or have been split or deleted,
|
|
|
9403 all the functions in the list are called, with the frame as argument.
|
|
|
9404 */ );
|
|
|
9405 Vwindow_size_change_functions = Qnil;
|
|
|
9406
|
|
|
9407 DEFVAR_LISP ("window-scroll-functions", &Vwindow_scroll_functions /*
|
|
|
9408 Not currently implemented.
|
|
|
9409 Functions to call before redisplaying a window with scrolling.
|
|
|
9410 Each function is called with two arguments, the window
|
|
|
9411 and its new display-start position. Note that the value of `window-end'
|
|
|
9412 is not valid when these functions are called.
|
|
|
9413 */ );
|
|
|
9414 Vwindow_scroll_functions = Qnil;
|
|
|
9415
|
|
|
9416 DEFVAR_LISP ("redisplay-end-trigger-functions",
|
|
|
9417 &Vredisplay_end_trigger_functions /*
|
|
|
9418 See `set-window-redisplay-end-trigger'.
|
|
|
9419 */ );
|
|
|
9420 Vredisplay_end_trigger_functions = Qnil;
|
|
|
9421
|
|
|
9422 DEFVAR_BOOL ("column-number-start-at-one", &column_number_start_at_one /*
|
|
|
9423 *Non-nil means column display number starts at 1.
|
|
|
9424 */ );
|
|
|
9425 column_number_start_at_one = 0;
|
|
|
9426 }
|
|
|
9427
|
|
|
9428 void
|
|
|
9429 specifier_vars_of_redisplay (void)
|
|
|
9430 {
|
|
|
9431 DEFVAR_SPECIFIER ("left-margin-width", &Vleft_margin_width /*
|
|
|
9432 *Width of left margin.
|
|
|
9433 This is a specifier; use `set-specifier' to change it.
|
|
|
9434 */ );
|
|
|
9435 Vleft_margin_width = Fmake_specifier (Qnatnum);
|
|
|
9436 set_specifier_fallback (Vleft_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
|
9437 set_specifier_caching (Vleft_margin_width,
|
|
438
|
9438 offsetof (struct window, left_margin_width),
|
|
428
|
9439 some_window_value_changed,
|
|
438
|
9440 offsetof (struct frame, left_margin_width),
|
|
428
|
9441 margin_width_changed_in_frame);
|
|
|
9442
|
|
|
9443 DEFVAR_SPECIFIER ("right-margin-width", &Vright_margin_width /*
|
|
|
9444 *Width of right margin.
|
|
|
9445 This is a specifier; use `set-specifier' to change it.
|
|
|
9446 */ );
|
|
|
9447 Vright_margin_width = Fmake_specifier (Qnatnum);
|
|
|
9448 set_specifier_fallback (Vright_margin_width, list1 (Fcons (Qnil, Qzero)));
|
|
|
9449 set_specifier_caching (Vright_margin_width,
|
|
438
|
9450 offsetof (struct window, right_margin_width),
|
|
428
|
9451 some_window_value_changed,
|
|
438
|
9452 offsetof (struct frame, right_margin_width),
|
|
428
|
9453 margin_width_changed_in_frame);
|
|
|
9454
|
|
|
9455 DEFVAR_SPECIFIER ("minimum-line-ascent", &Vminimum_line_ascent /*
|
|
|
9456 *Minimum ascent height of lines.
|
|
|
9457 This is a specifier; use `set-specifier' to change it.
|
|
|
9458 */ );
|
|
|
9459 Vminimum_line_ascent = Fmake_specifier (Qnatnum);
|
|
|
9460 set_specifier_fallback (Vminimum_line_ascent, list1 (Fcons (Qnil, Qzero)));
|
|
|
9461 set_specifier_caching (Vminimum_line_ascent,
|
|
438
|
9462 offsetof (struct window, minimum_line_ascent),
|
|
428
|
9463 some_window_value_changed,
|
|
|
9464 0, 0);
|
|
|
9465
|
|
|
9466 DEFVAR_SPECIFIER ("minimum-line-descent", &Vminimum_line_descent /*
|
|
|
9467 *Minimum descent height of lines.
|
|
|
9468 This is a specifier; use `set-specifier' to change it.
|
|
|
9469 */ );
|
|
|
9470 Vminimum_line_descent = Fmake_specifier (Qnatnum);
|
|
|
9471 set_specifier_fallback (Vminimum_line_descent, list1 (Fcons (Qnil, Qzero)));
|
|
|
9472 set_specifier_caching (Vminimum_line_descent,
|
|
438
|
9473 offsetof (struct window, minimum_line_descent),
|
|
428
|
9474 some_window_value_changed,
|
|
|
9475 0, 0);
|
|
|
9476
|
|
|
9477 DEFVAR_SPECIFIER ("use-left-overflow", &Vuse_left_overflow /*
|
|
|
9478 *Non-nil means use the left outside margin as extra whitespace when
|
|
|
9479 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
9480 This is a specifier; use `set-specifier' to change it.
|
|
|
9481 */ );
|
|
|
9482 Vuse_left_overflow = Fmake_specifier (Qboolean);
|
|
|
9483 set_specifier_fallback (Vuse_left_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
|
9484 set_specifier_caching (Vuse_left_overflow,
|
|
438
|
9485 offsetof (struct window, use_left_overflow),
|
|
428
|
9486 some_window_value_changed,
|
|
|
9487 0, 0);
|
|
|
9488
|
|
|
9489 DEFVAR_SPECIFIER ("use-right-overflow", &Vuse_right_overflow /*
|
|
|
9490 *Non-nil means use the right outside margin as extra whitespace when
|
|
|
9491 displaying 'whitespace or 'inside-margin glyphs.
|
|
|
9492 This is a specifier; use `set-specifier' to change it.
|
|
|
9493 */ );
|
|
|
9494 Vuse_right_overflow = Fmake_specifier (Qboolean);
|
|
|
9495 set_specifier_fallback (Vuse_right_overflow, list1 (Fcons (Qnil, Qnil)));
|
|
|
9496 set_specifier_caching (Vuse_right_overflow,
|
|
438
|
9497 offsetof (struct window, use_right_overflow),
|
|
428
|
9498 some_window_value_changed,
|
|
|
9499 0, 0);
|
|
|
9500
|
|
|
9501 DEFVAR_SPECIFIER ("text-cursor-visible-p", &Vtext_cursor_visible_p /*
|
|
|
9502 *Non-nil means the text cursor is visible (this is usually the case).
|
|
|
9503 This is a specifier; use `set-specifier' to change it.
|
|
|
9504 */ );
|
|
|
9505 Vtext_cursor_visible_p = Fmake_specifier (Qboolean);
|
|
|
9506 set_specifier_fallback (Vtext_cursor_visible_p, list1 (Fcons (Qnil, Qt)));
|
|
|
9507 set_specifier_caching (Vtext_cursor_visible_p,
|
|
438
|
9508 offsetof (struct window, text_cursor_visible_p),
|
|
428
|
9509 text_cursor_visible_p_changed,
|
|
|
9510 0, 0);
|
|
|
9511
|
|
|
9512 }
|
