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428
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1 /* Synchronize redisplay structures and output changes.
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995, 1996 Ben Wing.
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4 Copyright (C) 1996 Chuck Thompson.
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5 Copyright (C) 1999 Andy Piper.
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6
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7 This file is part of XEmacs.
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8
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9 XEmacs is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 2, or (at your option) any
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12 later version.
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13
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14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with XEmacs; see the file COPYING. If not, write to
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21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 Boston, MA 02111-1307, USA. */
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23
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24 /* Synched up with: Not in FSF. */
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25
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26 /* This file has been Mule-ized. */
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27
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28 /* Author: Chuck Thompson */
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29
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30 /* Heavily hacked for modularity, gutter and subwindow support by Andy
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31 Piper. */
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32
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33 #include <config.h>
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34 #include "lisp.h"
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35
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36 #include "buffer.h"
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37 #include "window.h"
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38 #include "frame.h"
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39 #include "device.h"
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40 #include "glyphs.h"
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41 #include "redisplay.h"
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42 #include "faces.h"
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446
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43 #include "gutter.h"
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428
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44
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45 static int compare_runes (struct window *w, struct rune *crb,
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46 struct rune *drb);
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47 static void redraw_cursor_in_window (struct window *w,
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48 int run_end_begin_glyphs);
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49 static void redisplay_output_display_block (struct window *w, struct display_line *dl,
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50 int block, int start, int end, int start_pixpos,
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434
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51 int cursor_start, int cursor_width,
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428
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52 int cursor_height);
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434
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53 static void redisplay_normalize_display_box (struct display_box* dest,
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428
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54 struct display_glyph_area* src);
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55 static int redisplay_display_boxes_in_window_p (struct window* w,
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56 struct display_box* db,
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57 struct display_glyph_area* dga);
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434
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58 static void redisplay_clear_clipped_region (Lisp_Object locale, face_index findex,
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59 struct display_box* dest,
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60 struct display_glyph_area* glyphsrc,
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428
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61 int fullheight_p, Lisp_Object);
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62
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63 /*****************************************************************************
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64 sync_rune_structs
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65
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66 Synchronize the given rune blocks.
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67 ****************************************************************************/
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68 static void
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69 sync_rune_structs (struct window *w, rune_dynarr *cra, rune_dynarr *dra)
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70 {
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71 int rune_elt;
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72 int max_move = ((Dynarr_length (dra) > Dynarr_largest (cra))
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73 ? Dynarr_largest (cra)
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74 : Dynarr_length (dra));
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75
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76 if (max_move)
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77 {
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78 /* #### Doing this directly breaks the encapsulation. But, the
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79 running time of this function has a measurable impact on
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80 redisplay performance so avoiding all excess overhead is a
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81 good thing. Is all of this true? */
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82 memcpy (cra->base, dra->base, sizeof (struct rune) * max_move);
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83 Dynarr_set_size (cra, max_move);
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84 }
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85 else
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86 Dynarr_reset (cra);
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87
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88 for (rune_elt = max_move; rune_elt < Dynarr_length (dra); rune_elt++)
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89 {
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90 struct rune rb, *crb;
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91 struct rune *drb = Dynarr_atp (dra, rune_elt);
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92
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93 crb = &rb;
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94 memcpy (crb, drb, sizeof (struct rune));
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95 Dynarr_add (cra, *crb);
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96 }
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97 }
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98
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99 /*****************************************************************************
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100 sync_display_line_structs
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101
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102 For the given LINE in window W, make the current display line equal
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103 the desired display line.
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104 ****************************************************************************/
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442
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105 void
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428
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106 sync_display_line_structs (struct window *w, int line, int do_blocks,
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107 display_line_dynarr *cdla,
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108 display_line_dynarr *ddla)
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109 {
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110 int cdla_len = Dynarr_length (cdla);
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111
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112 struct display_line dl, *clp, *dlp;
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113 int db_elt;
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114
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115 dlp = Dynarr_atp (ddla, line);
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116 if (line >= Dynarr_largest (cdla))
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117 {
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118 clp = &dl;
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119 clp->display_blocks = Dynarr_new (display_block);
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120 }
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121 else
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122 {
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123 clp = Dynarr_atp (cdla, line);
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124 if (clp->display_blocks)
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125 Dynarr_reset (clp->display_blocks);
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126 if (clp->left_glyphs)
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127 {
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128 Dynarr_free (clp->left_glyphs);
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129 clp->left_glyphs = 0;
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130 }
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131 if (clp->right_glyphs)
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132 {
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133 Dynarr_free (clp->right_glyphs);
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134 clp->right_glyphs = 0;
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135 }
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136 }
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137 {
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138 display_block_dynarr *tdb = clp->display_blocks;
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139
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140 memcpy (clp, dlp, sizeof (struct display_line));
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141 clp->display_blocks = tdb;
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142 clp->left_glyphs = 0;
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143 clp->right_glyphs = 0;
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144 }
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145
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146 if (!do_blocks && line >= cdla_len)
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147 {
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148 Dynarr_add (cdla, *clp);
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149 return;
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150 }
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151
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152 for (db_elt = 0; db_elt < Dynarr_length (dlp->display_blocks); db_elt++)
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153 {
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154 struct display_block db, *cdb;
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155 struct display_block *ddb = Dynarr_atp (dlp->display_blocks, db_elt);
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156
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157 if (db_elt >= Dynarr_largest (clp->display_blocks))
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158 {
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159 cdb = &db;
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160 memcpy (cdb, ddb, sizeof (struct display_block));
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161 cdb->runes = Dynarr_new (rune);
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162 Dynarr_add (clp->display_blocks, *cdb);
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163 }
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164 else
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165 {
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166 rune_dynarr *tr;
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167
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168 cdb = Dynarr_atp (clp->display_blocks, db_elt);
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169 tr = cdb->runes;
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170 memcpy (cdb, ddb, sizeof (struct display_block));
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171 cdb->runes = tr;
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172 Dynarr_increment (clp->display_blocks);
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173 }
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174
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175 sync_rune_structs (w, cdb->runes, ddb->runes);
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176 }
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177
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178 if (line >= cdla_len)
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179 Dynarr_add (cdla, *clp);
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180 }
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181
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182 /*****************************************************************************
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183 compare_runes
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184
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185 Compare to runes to see if each of their fields is equal. If so,
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186 return true otherwise return false.
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187 ****************************************************************************/
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188 static int
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189 compare_runes (struct window *w, struct rune *crb, struct rune *drb)
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190 {
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191 /* Do not compare the values of bufpos and endpos. They do not
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192 affect the display characteristics. */
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193
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194 /* Note: (hanoi 6) spends 95% of its time in redisplay, and about
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195 30% here. Not using bitfields for rune.type alone gives a redisplay
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196 speed up of 10%.
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197
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198 #### In profile arcs run of a normal Gnus session this function
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199 is run 6.76 million times, only to return 1 in 6.73 million of
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200 those.
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201
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202 In addition a quick look GCC sparc assembly shows that GCC is not
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203 doing a good job here.
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204 1. The function is not inlined (too complicated?)
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205 2. It seems to be reloading the crb and drb variables all the
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206 time.
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207 3. It doesn't seem to notice that the second half of these if's
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208 are really a switch statement.
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209
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210 So I (JV) conjecture
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211
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212 #### It would really be worth it to arrange for this function to
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213 be (almost) a single call to memcmp. */
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434
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214
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442
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215 if (crb->xpos != drb->xpos)
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428
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216 return 0;
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217 else if (crb->width != drb->width)
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218 return 0;
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219 else if (crb->cursor_type != drb->cursor_type)
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220 return 0;
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221 else if (crb->type != drb->type)
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222 return 0;
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223 else if (crb->type == RUNE_CHAR &&
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224 (crb->object.chr.ch != drb->object.chr.ch))
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225 return 0;
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226 else if (crb->type == RUNE_HLINE &&
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227 (crb->object.hline.thickness != drb->object.hline.thickness ||
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228 crb->object.hline.yoffset != drb->object.hline.yoffset))
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229 return 0;
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434
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230 else if (crb->type == RUNE_DGLYPH &&
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428
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231 (!EQ (crb->object.dglyph.glyph, drb->object.dglyph.glyph) ||
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232 !EQ (crb->object.dglyph.extent, drb->object.dglyph.extent) ||
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233 crb->object.dglyph.xoffset != drb->object.dglyph.xoffset))
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234 return 0;
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235 /* Only check dirtiness if we know something has changed. */
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236 else if (crb->type == RUNE_DGLYPH &&
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442
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237 (XGLYPH_DIRTYP (crb->object.dglyph.glyph) ||
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238 crb->findex != drb->findex))
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428
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239 {
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442
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240 /* We need some way of telling redisplay_output_layout () that the
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241 only reason we are outputting it is because something has
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242 changed internally. That way we can optimize whether we need
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243 to clear the layout first and also only output the components
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244 that have changed. The image_instance dirty flag and
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245 display_hash are no good to us because these will invariably
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246 have been set anyway if the layout has changed. So it looks
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247 like we need yet another change flag that we can set here and
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248 then clear in redisplay_output_layout (). */
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249 Lisp_Object window, image;
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250 Lisp_Image_Instance* ii;
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251 XSETWINDOW (window, w);
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252 image = glyph_image_instance (crb->object.dglyph.glyph,
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253 window, ERROR_ME_NOT, 1);
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254
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255 if (!IMAGE_INSTANCEP (image))
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256 return 0;
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257 ii = XIMAGE_INSTANCE (image);
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258
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259 if (TEXT_IMAGE_INSTANCEP (image) &&
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260 (crb->findex != drb->findex ||
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261 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)))
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428
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262 return 0;
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442
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263
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264 /* It is quite common for the two glyphs to be EQ since in many
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265 cases they will actually be the same object. This does not
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266 mean, however, that nothing has changed. We therefore need to
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267 check the current hash of the glyph against the last recorded
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268 display hash and the pending display items. See
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269 update_subwindow (). */
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270 if (image_instance_changed (image) ||
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271 crb->findex != drb->findex ||
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272 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex))
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273 {
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274 /* We now now we are going to re-output the glyph, but since
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275 this is for some internal reason not related to geometry
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276 changes, send a hint to the output routines that they can
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277 take some short cuts. This is most useful for
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278 layouts. This flag should get reset by the output
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279 routines.
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280
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281 #### It is possible for us to get here when the
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282 face_cachel is dirty. I do not know what the implications
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283 of this are.*/
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284 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (ii) = 1;
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285 return 0;
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286 }
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434
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287 else
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428
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288 return 1;
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289 }
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442
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290 /* We now do this last so that glyph checks can do their own thing
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291 for face changes. Face changes quite often happen when we are
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292 trying to output something in the gutter, this would normally
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293 lead to a lot of flashing. The indices can quite often be
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294 different and yet the faces are the same, we do not want to
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295 re-output in this instance. */
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296 else if (crb->findex != drb->findex ||
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297 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex))
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298 return 0;
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428
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299 else
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300 return 1;
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301 }
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302
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303 /*****************************************************************************
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304 get_next_display_block
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305
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306 Return the next display starting at or overlapping START_POS. Return
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307 the start of the next region in NEXT_START.
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308 ****************************************************************************/
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309 int
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310 get_next_display_block (layout_bounds bounds, display_block_dynarr *dba,
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311 int start_pos, int *next_start)
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312 {
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313 int next_display_block = NO_BLOCK;
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314 int priority = -1;
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315 int block;
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316
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317 /* If we don't find a display block covering or starting at
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318 start_pos, then we return the starting point of the next display
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319 block or the next division boundary, whichever is closer to
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320 start_pos. */
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321 if (next_start)
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322 {
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323 if (start_pos >= bounds.left_out && start_pos < bounds.left_in)
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324 *next_start = bounds.left_in;
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325 else if (start_pos < bounds.left_white)
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326 *next_start = bounds.left_white;
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327 else if (start_pos < bounds.right_white)
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328 *next_start = bounds.right_white;
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329 else if (start_pos < bounds.right_in)
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330 *next_start = bounds.right_in;
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331 else if (start_pos <= bounds.right_out)
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332 *next_start = bounds.right_out;
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333 else
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334 abort ();
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335 }
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336
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337 for (block = 0; block < Dynarr_length (dba); block++)
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338 {
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339 struct display_block *db = Dynarr_atp (dba, block);
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340
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|
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341 if (db->start_pos <= start_pos && db->end_pos > start_pos)
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342 {
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|
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343 if ((int) db->type > priority)
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344 {
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345 priority = db->type;
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346 next_display_block = block;
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347 if (next_start)
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348 *next_start = db->end_pos;
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349 }
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350 }
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351 else if (next_start && db->start_pos > start_pos)
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352 {
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353 if (db->start_pos < *next_start)
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|
354 *next_start = db->start_pos;
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355 }
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|
356 }
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357
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|
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358 return next_display_block;
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|
|
359 }
|
|
|
360
|
|
|
361 /*****************************************************************************
|
|
|
362 get_cursor_size_and_location
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|
|
363
|
|
|
364 Return the information defining the pixel location of the cursor.
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|
|
365 ****************************************************************************/
|
|
|
366 static void
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|
|
367 get_cursor_size_and_location (struct window *w, struct display_block *db,
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|
|
368 int cursor_location,
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|
|
369 int *cursor_start, int *cursor_width,
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|
|
370 int *cursor_height)
|
|
|
371 {
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|
|
372 struct rune *rb;
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|
|
373 Lisp_Object window;
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|
|
374 int defheight, defwidth;
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|
|
375
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|
|
376 if (Dynarr_length (db->runes) <= cursor_location)
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|
|
377 abort ();
|
|
|
378
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|
|
379 XSETWINDOW (window, w);
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|
|
380
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|
|
381 rb = Dynarr_atp (db->runes, cursor_location);
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|
|
382 *cursor_start = rb->xpos;
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|
|
383
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|
|
384 default_face_height_and_width (window, &defheight, &defwidth);
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|
|
385 *cursor_height = defheight;
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|
|
386
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|
|
387 if (rb->type == RUNE_BLANK)
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|
|
388 *cursor_width = defwidth;
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|
|
389 else
|
|
|
390 *cursor_width = rb->width;
|
|
|
391 }
|
|
|
392
|
|
|
393 /*****************************************************************************
|
|
|
394 compare_display_blocks
|
|
|
395
|
|
|
396 Given two display blocks, output only those areas where they differ.
|
|
|
397 ****************************************************************************/
|
|
|
398 static int
|
|
|
399 compare_display_blocks (struct window *w, struct display_line *cdl,
|
|
|
400 struct display_line *ddl, int c_block, int d_block,
|
|
|
401 int start_pixpos, int cursor_start, int cursor_width,
|
|
|
402 int cursor_height)
|
|
|
403 {
|
|
|
404 struct frame *f = XFRAME (w->frame);
|
|
|
405 struct display_block *cdb, *ddb;
|
|
|
406 int start_pos;
|
|
|
407 int stop_pos;
|
|
|
408 int force = 0;
|
|
|
409 int block_end;
|
|
|
410
|
|
|
411 cdb = Dynarr_atp (cdl->display_blocks, c_block);
|
|
|
412 ddb = Dynarr_atp (ddl->display_blocks, d_block);
|
|
|
413
|
|
|
414 assert (cdb->type == ddb->type);
|
|
|
415
|
|
|
416 start_pos = -1;
|
|
|
417 stop_pos = min (Dynarr_length (cdb->runes), Dynarr_length (ddb->runes));
|
|
|
418
|
|
|
419 block_end =
|
|
|
420 (!Dynarr_length (ddb->runes)
|
|
|
421 ? 0
|
|
|
422 : (Dynarr_atp (ddb->runes, Dynarr_length (ddb->runes) - 1)->xpos +
|
|
|
423 Dynarr_atp (ddb->runes, Dynarr_length (ddb->runes) - 1)->width));
|
|
|
424
|
|
|
425 /* If the new block type is not text and the cursor status is
|
|
|
426 changing and it overlaps the position of this block then force a
|
|
|
427 full redraw of the block in order to make sure that the cursor is
|
|
|
428 updated properly. */
|
|
|
429 if (ddb->type != TEXT
|
|
|
430 #if 0
|
|
|
431 /* I'm not sure exactly what this code wants to do, but it's
|
|
|
432 * not right--it doesn't update when cursor_elt changes from, e.g.,
|
|
|
433 * 0 to 8, and the new or old cursor loc overlaps this block.
|
|
|
434 * I've replaced it with the more conservative test below.
|
|
|
435 * -dkindred@cs.cmu.edu 23-Mar-1997 */
|
|
|
436 && ((cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
|
|
|
437 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1))
|
|
|
438 && (ddl->cursor_elt == -1 ||
|
|
|
439 (cursor_start
|
|
|
440 && cursor_width
|
|
|
441 && (cursor_start + cursor_width) >= start_pixpos
|
|
|
442 && cursor_start <= block_end))
|
|
|
443 #else
|
|
|
444 && (cdl->cursor_elt != ddl->cursor_elt)
|
|
|
445 #endif
|
|
|
446 )
|
|
|
447 force = 1;
|
|
|
448
|
|
|
449 if (f->windows_structure_changed ||
|
|
|
450 /* #### Why is this so? We have face cachels so that we don't
|
|
|
451 have to recalculate all the display blocks when faces
|
|
|
452 change. I have fixed this for glyphs and am inclined to think
|
|
|
453 that faces should "Just Work", but I'm not feeling brave
|
|
|
454 today. Maybe its because the face cachels represent merged
|
|
|
455 faces rather than simply instantiations in a particular
|
|
|
456 domain. */
|
|
|
457 f->faces_changed ||
|
|
|
458 cdl->ypos != ddl->ypos ||
|
|
|
459 cdl->ascent != ddl->ascent ||
|
|
|
460 cdl->descent != ddl->descent ||
|
|
|
461 cdl->clip != ddl->clip ||
|
|
|
462 force)
|
|
|
463 {
|
|
|
464 start_pos = 0;
|
|
|
465 force = 1;
|
|
|
466 }
|
|
|
467 else
|
|
|
468 {
|
|
|
469 int elt = 0;
|
|
|
470
|
|
|
471 while (start_pos < 0 && elt < stop_pos)
|
|
|
472 {
|
|
|
473 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt),
|
|
|
474 Dynarr_atp (ddb->runes, elt)))
|
|
|
475 {
|
|
|
476 start_pos = elt;
|
|
|
477 }
|
|
|
478 else
|
|
|
479 {
|
|
|
480 elt++;
|
|
|
481 }
|
|
|
482 }
|
|
|
483
|
|
|
484 /* If nothing has changed in the area where the blocks overlap, but
|
|
|
485 there are new blocks in the desired block, then adjust the start
|
|
|
486 point accordingly. */
|
|
|
487 if (elt == stop_pos && stop_pos < Dynarr_length (ddb->runes))
|
|
|
488 start_pos = stop_pos;
|
|
|
489 }
|
|
|
490
|
|
|
491 if (start_pos >= 0)
|
|
|
492 {
|
|
|
493 if ((Dynarr_length (ddb->runes) != Dynarr_length (cdb->runes))
|
|
|
494 || force)
|
|
|
495 {
|
|
|
496 stop_pos = Dynarr_length (ddb->runes);
|
|
|
497 }
|
|
|
498 else
|
|
|
499 {
|
|
|
500 /* If the lines have the same number of runes and we are not
|
|
|
501 forcing a full redraw because the display line has
|
|
|
502 changed position then we try and optimize how much of the
|
|
|
503 line we actually redraw by scanning backwards from the
|
|
|
504 end for the first changed rune. This optimization is
|
|
|
505 almost always triggered by face changes. */
|
|
|
506
|
|
|
507 int elt = Dynarr_length (ddb->runes) - 1;
|
|
|
508
|
|
|
509 while (elt > start_pos)
|
|
|
510 {
|
|
|
511 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt),
|
|
|
512 Dynarr_atp (ddb->runes, elt)))
|
|
|
513 break;
|
|
|
514 else
|
|
|
515 elt--;
|
|
|
516 }
|
|
|
517 stop_pos = elt + 1;
|
|
|
518 }
|
|
|
519
|
|
|
520 redisplay_output_display_block (w, ddl, d_block, start_pos,
|
|
|
521 stop_pos, start_pixpos,
|
|
|
522 cursor_start, cursor_width,
|
|
|
523 cursor_height);
|
|
|
524 return 1;
|
|
|
525 }
|
|
|
526
|
|
|
527 return 0;
|
|
|
528 }
|
|
|
529
|
|
|
530 /*****************************************************************************
|
|
|
531 clear_left_border
|
|
|
532
|
|
|
533 Clear the lefthand outside border.
|
|
|
534 ****************************************************************************/
|
|
|
535 static void
|
|
|
536 clear_left_border (struct window *w, int y, int height)
|
|
|
537 {
|
|
|
538 struct frame *f = XFRAME (w->frame);
|
|
|
539 Lisp_Object window;
|
|
|
540
|
|
|
541 XSETWINDOW (window, w);
|
|
|
542 redisplay_clear_region (window, DEFAULT_INDEX,
|
|
|
543 FRAME_LEFT_BORDER_START (f), y,
|
|
|
544 FRAME_BORDER_WIDTH (f), height);
|
|
|
545 }
|
|
|
546
|
|
|
547 /*****************************************************************************
|
|
|
548 clear_right_border
|
|
|
549
|
|
|
550 Clear the righthand outside border.
|
|
|
551 ****************************************************************************/
|
|
|
552 static void
|
|
|
553 clear_right_border (struct window *w, int y, int height)
|
|
|
554 {
|
|
|
555 struct frame *f = XFRAME (w->frame);
|
|
|
556 Lisp_Object window;
|
|
|
557
|
|
|
558 XSETWINDOW (window, w);
|
|
|
559 redisplay_clear_region (window, DEFAULT_INDEX,
|
|
|
560 FRAME_RIGHT_BORDER_START (f),
|
|
|
561 y, FRAME_BORDER_WIDTH (f), height);
|
|
|
562 }
|
|
|
563
|
|
|
564 /*****************************************************************************
|
|
|
565 output_display_line
|
|
|
566
|
|
|
567 Ensure that the contents of the given display line is correct
|
|
|
568 on-screen. The force_ parameters are used by redisplay_move_cursor
|
|
|
569 to correctly update cursor locations and only cursor locations.
|
|
|
570 ****************************************************************************/
|
|
|
571 void
|
|
|
572 output_display_line (struct window *w, display_line_dynarr *cdla,
|
|
|
573 display_line_dynarr *ddla, int line, int force_start,
|
|
|
574 int force_end)
|
|
|
575
|
|
|
576 {
|
|
|
577 struct frame *f = XFRAME (w->frame);
|
|
|
578 struct buffer *b = XBUFFER (w->buffer);
|
|
|
579 struct buffer *old_b = window_display_buffer (w);
|
|
|
580 struct display_line *cdl, *ddl;
|
|
|
581 display_block_dynarr *cdba, *ddba;
|
|
|
582 int start_pixpos, end_pixpos;
|
|
|
583 int cursor_start, cursor_width, cursor_height;
|
|
|
584
|
|
|
585 int force = (force_start >= 0 || force_end >= 0);
|
|
|
586 int clear_border = 0;
|
|
|
587 int must_sync = 0;
|
|
|
588
|
|
|
589 if (cdla && line < Dynarr_length (cdla))
|
|
|
590 {
|
|
|
591 cdl = Dynarr_atp (cdla, line);
|
|
|
592 cdba = cdl->display_blocks;
|
|
|
593 }
|
|
|
594 else
|
|
|
595 {
|
|
|
596 cdl = NULL;
|
|
|
597 cdba = NULL;
|
|
|
598 }
|
|
|
599
|
|
|
600 ddl = Dynarr_atp (ddla, line); /* assert line < Dynarr_length (ddla) */
|
|
|
601 ddba = ddl->display_blocks;
|
|
|
602
|
|
|
603 if (force_start >= 0 && force_start >= ddl->bounds.left_out)
|
|
|
604 start_pixpos = force_start;
|
|
|
605 else
|
|
|
606 start_pixpos = ddl->bounds.left_out;
|
|
|
607
|
|
|
608 if (force_end >= 0 && force_end < ddl->bounds.right_out)
|
|
|
609 end_pixpos = force_end;
|
|
|
610 else
|
|
|
611 end_pixpos = ddl->bounds.right_out;
|
|
|
612
|
|
|
613 /* Get the cursor parameters. */
|
|
|
614 if (ddl->cursor_elt != -1)
|
|
|
615 {
|
|
|
616 struct display_block *db;
|
|
|
617
|
|
|
618 /* If the lines cursor parameter is not -1 then it indicates
|
|
|
619 which rune in the TEXT block contains the cursor. This means
|
|
|
620 that there must be at least one display block. The TEXT
|
|
|
621 block, if present, must always be the first display block. */
|
|
|
622 assert (Dynarr_length (ddba) != 0);
|
|
|
623
|
|
|
624 db = Dynarr_atp (ddba, 0);
|
|
|
625 assert (db->type == TEXT);
|
|
|
626
|
|
|
627 get_cursor_size_and_location (w, db, ddl->cursor_elt, &cursor_start,
|
|
|
628 &cursor_width, &cursor_height);
|
|
|
629 }
|
|
|
630 else
|
|
|
631 {
|
|
|
632 cursor_start = cursor_width = cursor_height = 0;
|
|
|
633 }
|
|
|
634
|
|
|
635 /* The modeline should only have a single block and it had better be
|
|
|
636 a TEXT block. */
|
|
|
637 if (ddl->modeline)
|
|
|
638 {
|
|
|
639 /* The shadow thickness check is necessary if only the sign of
|
|
|
640 the size changed. */
|
|
|
641 if (cdba && !w->shadow_thickness_changed)
|
|
|
642 {
|
|
|
643 must_sync |= compare_display_blocks (w, cdl, ddl, 0, 0,
|
|
|
644 start_pixpos, 0, 0, 0);
|
|
|
645 }
|
|
|
646 else
|
|
|
647 {
|
|
|
648 redisplay_output_display_block (w, ddl, 0, 0, -1, start_pixpos,
|
|
|
649 0, 0, 0);
|
|
|
650 must_sync = 1;
|
|
|
651 }
|
|
|
652
|
|
|
653 if (must_sync)
|
|
|
654 clear_border = 1;
|
|
|
655 }
|
|
|
656
|
|
|
657 while (!ddl->modeline && start_pixpos < end_pixpos)
|
|
|
658 {
|
|
|
659 int block;
|
|
|
660 int next_start_pixpos;
|
|
|
661
|
|
|
662 block = get_next_display_block (ddl->bounds, ddba, start_pixpos,
|
|
|
663 &next_start_pixpos);
|
|
|
664
|
|
|
665 /* If we didn't find a block then we should blank the area
|
|
|
666 between start_pos and next_start if necessary. */
|
|
|
667 if (block == NO_BLOCK)
|
|
|
668 {
|
|
|
669 /* We only erase those areas which were actually previously
|
|
|
670 covered by a display block unless the window structure
|
|
|
671 changed. In that case we clear all areas since the current
|
|
|
672 structures may actually represent a different buffer. */
|
|
|
673 while (start_pixpos < next_start_pixpos)
|
|
|
674 {
|
|
|
675 int block_end;
|
|
|
676 int old_block;
|
|
|
677
|
|
|
678 if (cdba)
|
|
|
679 old_block = get_next_display_block (ddl->bounds, cdba,
|
|
|
680 start_pixpos, &block_end);
|
|
|
681 else
|
|
|
682 {
|
|
|
683 old_block = NO_BLOCK;
|
|
|
684 block_end = next_start_pixpos;
|
|
|
685 }
|
|
|
686
|
|
|
687 if (!cdba || old_block != NO_BLOCK || b != old_b ||
|
|
|
688 f->windows_structure_changed ||
|
|
|
689 f->faces_changed ||
|
|
|
690 force ||
|
|
|
691 (cdl && (cdl->ypos != ddl->ypos ||
|
|
|
692 cdl->ascent != ddl->ascent ||
|
|
|
693 cdl->descent != ddl->descent ||
|
|
|
694 cdl->top_clip != ddl->top_clip ||
|
|
|
695 cdl->clip != ddl->clip)))
|
|
|
696 {
|
|
|
697 int x, y, width, height;
|
|
|
698 face_index findex;
|
|
|
699
|
|
|
700 must_sync = 1;
|
|
|
701 x = start_pixpos;
|
|
|
702 y = DISPLAY_LINE_YPOS (ddl);
|
|
|
703 width = min (next_start_pixpos, block_end) - x;
|
|
|
704 height = DISPLAY_LINE_HEIGHT (ddl);
|
|
|
705
|
|
|
706 if (x < ddl->bounds.left_in)
|
|
|
707 {
|
|
|
708 findex = ddl->left_margin_findex ?
|
|
434
|
709 ddl->left_margin_findex
|
|
428
|
710 : get_builtin_face_cache_index (w, Vleft_margin_face);
|
|
|
711 }
|
|
|
712 else if (x < ddl->bounds.right_in)
|
|
|
713 {
|
|
|
714 /* no check here because DEFAULT_INDEX == 0 anyway */
|
|
|
715 findex = ddl->default_findex;
|
|
|
716 }
|
|
|
717 else if (x < ddl->bounds.right_out)
|
|
|
718 {
|
|
|
719 findex = ddl->right_margin_findex ?
|
|
434
|
720 ddl->right_margin_findex
|
|
428
|
721 : get_builtin_face_cache_index (w, Vright_margin_face);
|
|
|
722 }
|
|
|
723 else
|
|
|
724 findex = (face_index) -1;
|
|
|
725
|
|
|
726 if (findex != (face_index) -1)
|
|
|
727 {
|
|
|
728 Lisp_Object window;
|
|
|
729
|
|
|
730 XSETWINDOW (window, w);
|
|
|
731
|
|
|
732 /* Clear the empty area. */
|
|
|
733 redisplay_clear_region (window, findex, x, y, width, height);
|
|
|
734
|
|
|
735 /* Mark that we should clear the border. This is
|
|
|
736 necessary because italic fonts may leave
|
|
|
737 droppings in the border. */
|
|
|
738 clear_border = 1;
|
|
|
739 }
|
|
|
740 }
|
|
|
741
|
|
|
742 start_pixpos = min (next_start_pixpos, block_end);
|
|
|
743 }
|
|
|
744 }
|
|
|
745 else
|
|
|
746 {
|
|
|
747 struct display_block *cdb, *ddb;
|
|
|
748 int block_end;
|
|
|
749 int old_block;
|
|
|
750
|
|
|
751 if (cdba)
|
|
|
752 old_block = get_next_display_block (ddl->bounds, cdba,
|
|
|
753 start_pixpos, &block_end);
|
|
|
754 else
|
|
|
755 old_block = NO_BLOCK;
|
|
|
756
|
|
|
757 ddb = Dynarr_atp (ddba, block);
|
|
|
758 cdb = (old_block != NO_BLOCK ? Dynarr_atp (cdba, old_block) : 0);
|
|
|
759
|
|
|
760 /* If there was formerly no block over the current
|
|
|
761 region or if it was a block of a different type, then
|
|
|
762 output the entire ddb. Otherwise, compare cdb and
|
|
|
763 ddb and output only the changed region. */
|
|
434
|
764 if (!force && cdb && ddb->type == cdb->type
|
|
428
|
765 /* If there was no buffer being display before the
|
|
|
766 compare anyway as we might be outputting a gutter. */
|
|
434
|
767 &&
|
|
428
|
768 (b == old_b || !old_b))
|
|
|
769 {
|
|
|
770 must_sync |= compare_display_blocks (w, cdl, ddl, old_block,
|
|
|
771 block, start_pixpos,
|
|
|
772 cursor_start, cursor_width,
|
|
|
773 cursor_height);
|
|
|
774 }
|
|
|
775 else
|
|
|
776 {
|
|
|
777 int elt;
|
|
|
778 int first_elt = 0;
|
|
|
779 int last_elt = -1;
|
|
|
780
|
|
|
781 for (elt = 0; elt < Dynarr_length (ddb->runes); elt++)
|
|
|
782 {
|
|
|
783 struct rune *rb = Dynarr_atp (ddb->runes, elt);
|
|
|
784
|
|
|
785 if (start_pixpos >= rb->xpos
|
|
|
786 && start_pixpos < rb->xpos + rb->width)
|
|
|
787 first_elt = elt;
|
|
|
788
|
|
|
789 if (end_pixpos > rb->xpos
|
|
|
790 && end_pixpos <= rb->xpos + rb->width)
|
|
|
791 {
|
|
|
792 last_elt = elt + 1;
|
|
|
793 if (last_elt > Dynarr_length (ddb->runes))
|
|
|
794 last_elt = Dynarr_length (ddb->runes);
|
|
|
795 break;
|
|
|
796 }
|
|
|
797 }
|
|
|
798
|
|
|
799 must_sync = 1;
|
|
|
800 redisplay_output_display_block (w, ddl, block, first_elt,
|
|
|
801 last_elt,
|
|
|
802 start_pixpos,
|
|
|
803 cursor_start, cursor_width,
|
|
|
804 cursor_height);
|
|
|
805 }
|
|
434
|
806
|
|
428
|
807 start_pixpos = next_start_pixpos;
|
|
|
808 }
|
|
|
809 }
|
|
|
810
|
|
|
811 /* Clear the internal border if we are next to it and the window
|
|
|
812 structure or frame size has changed or if something caused
|
|
|
813 clear_border to be tripped. */
|
|
|
814 /* #### Doing this on f->clear sucks but is necessary because of
|
|
|
815 window-local background values. */
|
|
|
816 if (f->windows_structure_changed || f->faces_changed || clear_border
|
|
|
817 || f->clear)
|
|
|
818 {
|
|
|
819 int y = DISPLAY_LINE_YPOS (ddl);
|
|
|
820 int height = DISPLAY_LINE_HEIGHT (ddl);
|
|
|
821
|
|
|
822 /* If we are in the gutter then we musn't clear the borders. */
|
|
|
823 if (y >= WINDOW_TEXT_TOP (w) && (y + height) <= WINDOW_TEXT_BOTTOM (w))
|
|
|
824 {
|
|
|
825 if (ddl->modeline)
|
|
|
826 {
|
|
|
827 y -= MODELINE_SHADOW_THICKNESS (w);
|
|
|
828 height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
829 }
|
|
434
|
830
|
|
428
|
831 if (window_is_leftmost (w))
|
|
|
832 clear_left_border (w, y, height);
|
|
|
833 if (window_is_rightmost (w))
|
|
|
834 clear_right_border (w, y, height);
|
|
|
835 }
|
|
|
836 }
|
|
|
837
|
|
|
838 if (cdla)
|
|
|
839 sync_display_line_structs (w, line, must_sync, cdla, ddla);
|
|
|
840 }
|
|
|
841
|
|
|
842 /*****************************************************************************
|
|
|
843 redisplay_move_cursor
|
|
|
844
|
|
|
845 For the given window W, move the cursor to NEW_POINT. Returns a
|
|
|
846 boolean indicating success or failure.
|
|
|
847 ****************************************************************************/
|
|
|
848
|
|
|
849 #define ADJ_BUFPOS (rb->bufpos + dl->offset)
|
|
|
850 #define ADJ_ENDPOS (rb->endpos + dl->offset)
|
|
|
851
|
|
|
852 int
|
|
|
853 redisplay_move_cursor (struct window *w, Bufpos new_point, int no_output_end)
|
|
|
854 {
|
|
|
855 struct frame *f = XFRAME (w->frame);
|
|
|
856 struct device *d = XDEVICE (f->device);
|
|
|
857
|
|
|
858 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
|
|
|
859 struct display_line *dl;
|
|
|
860 struct display_block *db;
|
|
|
861 struct rune *rb;
|
|
|
862 int x = w->last_point_x[CURRENT_DISP];
|
|
|
863 int y = w->last_point_y[CURRENT_DISP];
|
|
|
864
|
|
|
865 /*
|
|
|
866 * Bail if cursor_in_echo_area is non-zero and we're fiddling with
|
|
|
867 * the cursor in a non-active minibuffer window, since that is a
|
|
|
868 * special case that is handled elsewhere and this function need
|
|
|
869 * not handle it. Return 1 so the caller will assume we
|
|
|
870 * succeeded.
|
|
|
871 */
|
|
|
872 if (cursor_in_echo_area && MINI_WINDOW_P (w) &&
|
|
|
873 w != XWINDOW (FRAME_SELECTED_WINDOW (f)))
|
|
|
874 return 1;
|
|
|
875
|
|
|
876 if (y < 0 || y >= Dynarr_length (cla))
|
|
|
877 return 0;
|
|
|
878
|
|
|
879 dl = Dynarr_atp (cla, y);
|
|
|
880 db = get_display_block_from_line (dl, TEXT);
|
|
|
881
|
|
|
882 if (x < 0 || x >= Dynarr_length (db->runes))
|
|
|
883 return 0;
|
|
|
884
|
|
|
885 rb = Dynarr_atp (db->runes, x);
|
|
|
886
|
|
|
887 if (rb->cursor_type == CURSOR_OFF)
|
|
|
888 return 0;
|
|
|
889 else if (ADJ_BUFPOS == new_point
|
|
|
890 || (ADJ_ENDPOS && (new_point >= ADJ_BUFPOS)
|
|
|
891 && (new_point <= ADJ_ENDPOS)))
|
|
|
892 {
|
|
|
893 w->last_point_x[CURRENT_DISP] = x;
|
|
|
894 w->last_point_y[CURRENT_DISP] = y;
|
|
|
895 Fset_marker (w->last_point[CURRENT_DISP], make_int (ADJ_BUFPOS),
|
|
|
896 w->buffer);
|
|
|
897 dl->cursor_elt = x;
|
|
|
898 return 1;
|
|
|
899 }
|
|
|
900 else
|
|
|
901 {
|
|
442
|
902 {
|
|
|
903 MAYBE_DEVMETH (d, frame_output_begin, (f));
|
|
|
904 MAYBE_DEVMETH (d, window_output_begin, (w));
|
|
|
905 }
|
|
|
906 rb->cursor_type = CURSOR_OFF;
|
|
428
|
907 dl->cursor_elt = -1;
|
|
|
908 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width);
|
|
|
909 }
|
|
|
910
|
|
|
911 w->last_point_x[CURRENT_DISP] = -1;
|
|
|
912 w->last_point_y[CURRENT_DISP] = -1;
|
|
|
913 Fset_marker (w->last_point[CURRENT_DISP], Qnil, w->buffer);
|
|
|
914
|
|
|
915 /* If this isn't the selected frame, then erasing the old cursor is
|
|
|
916 all we actually had to do. */
|
|
|
917 if (w != XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame (d))))
|
|
|
918 {
|
|
|
919 if (!no_output_end)
|
|
442
|
920 {
|
|
|
921 MAYBE_DEVMETH (d, window_output_end, (w));
|
|
|
922 MAYBE_DEVMETH (d, frame_output_end, (f));
|
|
|
923 }
|
|
428
|
924
|
|
|
925 return 1;
|
|
|
926 }
|
|
|
927
|
|
|
928 /* This should only occur in the minibuffer. */
|
|
|
929 if (new_point == 0)
|
|
|
930 {
|
|
|
931 w->last_point_x[CURRENT_DISP] = 0;
|
|
|
932 w->last_point_y[CURRENT_DISP] = y;
|
|
|
933 Fset_marker (w->last_point[CURRENT_DISP], Qzero, w->buffer);
|
|
|
934
|
|
|
935 rb = Dynarr_atp (db->runes, 0);
|
|
|
936 rb->cursor_type = CURSOR_ON;
|
|
|
937 dl->cursor_elt = 0;
|
|
|
938
|
|
|
939 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width);
|
|
|
940
|
|
|
941 if (!no_output_end)
|
|
442
|
942 {
|
|
|
943 MAYBE_DEVMETH (d, window_output_end, (w));
|
|
|
944 MAYBE_DEVMETH (d, frame_output_end, (f));
|
|
|
945 }
|
|
428
|
946 return 1;
|
|
|
947 }
|
|
|
948 else
|
|
|
949 {
|
|
|
950 int cur_rb = 0;
|
|
|
951 int first = 0;
|
|
|
952 int cur_dl, up;
|
|
|
953
|
|
|
954 if (ADJ_BUFPOS < new_point)
|
|
|
955 {
|
|
|
956 up = 1;
|
|
|
957 cur_rb = x + 1;
|
|
|
958 cur_dl = y;
|
|
|
959 }
|
|
|
960 else /* (rb->bufpos + dl->offset) > new_point */
|
|
|
961 {
|
|
|
962 up = 0;
|
|
|
963
|
|
|
964 if (!x)
|
|
|
965 {
|
|
|
966 cur_dl = y - 1;
|
|
|
967 first = 0;
|
|
|
968 }
|
|
|
969 else
|
|
|
970 {
|
|
|
971 cur_rb = x - 1;
|
|
|
972 cur_dl = y;
|
|
|
973 first = 1;
|
|
|
974 }
|
|
|
975 }
|
|
|
976
|
|
434
|
977 while (up ? (cur_dl < Dynarr_length (cla)) : (cur_dl >= 0))
|
|
428
|
978 {
|
|
|
979 dl = Dynarr_atp (cla, cur_dl);
|
|
|
980 db = get_display_block_from_line (dl, TEXT);
|
|
|
981
|
|
|
982 if (!up && !first)
|
|
|
983 cur_rb = Dynarr_length (db->runes) - 1;
|
|
|
984
|
|
|
985 while ((!scroll_on_clipped_lines || !dl->clip) &&
|
|
|
986 (up ? (cur_rb < Dynarr_length (db->runes)) : (cur_rb >= 0)))
|
|
|
987 {
|
|
|
988 rb = Dynarr_atp (db->runes, cur_rb);
|
|
|
989
|
|
|
990 if (rb->cursor_type != IGNORE_CURSOR
|
|
|
991 && rb->cursor_type != NO_CURSOR &&
|
|
|
992 (ADJ_BUFPOS == new_point
|
|
|
993 || (ADJ_ENDPOS && (new_point >= ADJ_BUFPOS)
|
|
|
994 && (new_point <= ADJ_BUFPOS))))
|
|
|
995 {
|
|
|
996 rb->cursor_type = CURSOR_ON;
|
|
|
997 dl->cursor_elt = cur_rb;
|
|
|
998
|
|
|
999
|
|
|
1000 output_display_line (w, 0, cla, cur_dl, rb->xpos,
|
|
|
1001 rb->xpos + rb->width);
|
|
|
1002
|
|
|
1003 w->last_point_x[CURRENT_DISP] = cur_rb;
|
|
|
1004 w->last_point_y[CURRENT_DISP] = cur_dl;
|
|
|
1005 Fset_marker (w->last_point[CURRENT_DISP],
|
|
|
1006 make_int (ADJ_BUFPOS), w->buffer);
|
|
|
1007
|
|
|
1008 if (!no_output_end)
|
|
442
|
1009 {
|
|
|
1010 MAYBE_DEVMETH (d, window_output_end, (w));
|
|
|
1011 MAYBE_DEVMETH (d, frame_output_end, (f));
|
|
|
1012 }
|
|
428
|
1013 return 1;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 (up ? cur_rb++ : cur_rb--);
|
|
|
1017 }
|
|
|
1018
|
|
|
1019 (up ? (cur_rb = 0) : (first = 0));
|
|
|
1020 (up ? cur_dl++ : cur_dl--);
|
|
|
1021 }
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 if (!no_output_end)
|
|
442
|
1025 {
|
|
|
1026 MAYBE_DEVMETH (d, window_output_end, (w));
|
|
|
1027 MAYBE_DEVMETH (d, frame_output_end, (f));
|
|
|
1028 }
|
|
428
|
1029 return 0;
|
|
|
1030 }
|
|
|
1031 #undef ADJ_BUFPOS
|
|
|
1032 #undef ADJ_ENDPOS
|
|
|
1033
|
|
|
1034 /*****************************************************************************
|
|
|
1035 redraw_cursor_in_window
|
|
|
1036
|
|
|
1037 For the given window W, redraw the cursor if it is contained within
|
|
|
1038 the window.
|
|
|
1039 ****************************************************************************/
|
|
|
1040 static void
|
|
|
1041 redraw_cursor_in_window (struct window *w, int run_end_begin_meths)
|
|
|
1042 {
|
|
|
1043 struct frame *f = XFRAME (w->frame);
|
|
|
1044 struct device *d = XDEVICE (f->device);
|
|
|
1045
|
|
|
1046 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
1047 struct display_line *dl;
|
|
|
1048 struct display_block *db;
|
|
|
1049 struct rune *rb;
|
|
|
1050
|
|
|
1051 int x = w->last_point_x[CURRENT_DISP];
|
|
|
1052 int y = w->last_point_y[CURRENT_DISP];
|
|
|
1053
|
|
|
1054 if (cursor_in_echo_area && MINI_WINDOW_P (w) &&
|
|
|
1055 !echo_area_active (f) && minibuf_level == 0)
|
|
|
1056 {
|
|
|
1057 MAYBE_DEVMETH (d, set_final_cursor_coords, (f, w->pixel_top, 0));
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 if (y < 0 || y >= Dynarr_length (dla))
|
|
|
1061 return;
|
|
|
1062
|
|
|
1063 if (MINI_WINDOW_P (w) && f != device_selected_frame (d) &&
|
|
|
1064 !is_surrogate_for_selected_frame (f))
|
|
|
1065 return;
|
|
|
1066
|
|
|
1067 dl = Dynarr_atp (dla, y);
|
|
|
1068 db = get_display_block_from_line (dl, TEXT);
|
|
|
1069
|
|
|
1070 if (x < 0 || x >= Dynarr_length (db->runes))
|
|
|
1071 return;
|
|
|
1072
|
|
|
1073 rb = Dynarr_atp (db->runes, x);
|
|
|
1074
|
|
|
1075 /* Don't call the output routine if the block isn't actually the
|
|
|
1076 cursor. */
|
|
|
1077 if (rb->cursor_type == CURSOR_ON)
|
|
|
1078 {
|
|
|
1079 MAYBE_DEVMETH (d, set_final_cursor_coords,
|
|
|
1080 (f, dl->ypos - 1, rb->xpos));
|
|
|
1081
|
|
|
1082 if (run_end_begin_meths)
|
|
442
|
1083 {
|
|
|
1084 MAYBE_DEVMETH (d, frame_output_begin, (f));
|
|
|
1085 MAYBE_DEVMETH (d, window_output_begin, (w));
|
|
|
1086 }
|
|
428
|
1087
|
|
|
1088 output_display_line (w, 0, dla, y, rb->xpos, rb->xpos + rb->width);
|
|
|
1089
|
|
|
1090 if (run_end_begin_meths)
|
|
442
|
1091 {
|
|
|
1092 MAYBE_DEVMETH (d, window_output_end, (w));
|
|
|
1093 MAYBE_DEVMETH (d, frame_output_end, (f));
|
|
|
1094 }
|
|
428
|
1095 }
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 /*****************************************************************************
|
|
|
1099 redisplay_redraw_cursor
|
|
|
1100
|
|
|
1101 For the given frame F, redraw the cursor on the selected window.
|
|
|
1102 This is used to update the cursor after focus changes.
|
|
|
1103 ****************************************************************************/
|
|
|
1104 void
|
|
|
1105 redisplay_redraw_cursor (struct frame *f, int run_end_begin_meths)
|
|
|
1106 {
|
|
|
1107 Lisp_Object window;
|
|
|
1108
|
|
|
1109 if (!cursor_in_echo_area)
|
|
|
1110 window = FRAME_SELECTED_WINDOW (f);
|
|
|
1111 else if (FRAME_HAS_MINIBUF_P (f))
|
|
|
1112 window = FRAME_MINIBUF_WINDOW (f);
|
|
|
1113 else
|
|
|
1114 return;
|
|
|
1115
|
|
|
1116 redraw_cursor_in_window (XWINDOW (window), run_end_begin_meths);
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 /****************************************************************************
|
|
|
1120 redisplay_output_display_block
|
|
|
1121
|
|
|
1122 Given a display line, a block number for that start line, output all
|
|
|
1123 runes between start and end in the specified display block.
|
|
|
1124 ****************************************************************************/
|
|
|
1125 static void
|
|
|
1126 redisplay_output_display_block (struct window *w, struct display_line *dl, int block,
|
|
|
1127 int start, int end, int start_pixpos, int cursor_start,
|
|
|
1128 int cursor_width, int cursor_height)
|
|
|
1129 {
|
|
|
1130 struct frame *f = XFRAME (w->frame);
|
|
|
1131 struct device *d = XDEVICE (f->device);
|
|
442
|
1132 /* Temporarily disabled until generalization is done. */
|
|
|
1133 #if 0
|
|
428
|
1134 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
|
|
|
1135 rune_dynarr *rba = db->runes;
|
|
|
1136 struct rune *rb;
|
|
|
1137 int xpos, width;
|
|
|
1138 rb = Dynarr_atp (rba, start);
|
|
|
1139
|
|
|
1140 if (!rb)
|
|
|
1141 /* Nothing to do so don't do anything. */
|
|
|
1142 return;
|
|
|
1143
|
|
|
1144 xpos = max (start_pixpos, rb->xpos);
|
|
|
1145
|
|
|
1146 if (end < 0)
|
|
|
1147 end = Dynarr_length (rba);
|
|
|
1148
|
|
|
1149 rb = Dynarr_atp (rba, end - 1);
|
|
|
1150 width = rb->xpos + rb->width - xpos;
|
|
442
|
1151 #endif
|
|
428
|
1152 /* now actually output the block. */
|
|
|
1153 DEVMETH (d, output_display_block, (w, dl, block, start,
|
|
|
1154 end, start_pixpos,
|
|
|
1155 cursor_start, cursor_width,
|
|
|
1156 cursor_height));
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 /****************************************************************************
|
|
|
1160 redisplay_unmap_subwindows
|
|
|
1161
|
|
|
1162 Remove subwindows from the area in the box defined by the given
|
|
|
1163 parameters.
|
|
|
1164 ****************************************************************************/
|
|
|
1165 static void redisplay_unmap_subwindows (struct frame* f, int x, int y, int width, int height,
|
|
|
1166 Lisp_Object ignored_window)
|
|
|
1167 {
|
|
442
|
1168 Lisp_Object rest;
|
|
428
|
1169
|
|
442
|
1170 LIST_LOOP (rest, XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f)))
|
|
|
1171 {
|
|
|
1172 Lisp_Image_Instance *ii = XIMAGE_INSTANCE (XCAR (rest));
|
|
|
1173 if (IMAGE_INSTANCE_SUBWINDOW_DISPLAYEDP (ii)
|
|
428
|
1174 &&
|
|
442
|
1175 IMAGE_INSTANCE_DISPLAY_X (ii)
|
|
|
1176 + IMAGE_INSTANCE_DISPLAY_WIDTH (ii) > x
|
|
428
|
1177 &&
|
|
442
|
1178 IMAGE_INSTANCE_DISPLAY_X (ii) < x + width
|
|
|
1179 &&
|
|
|
1180 IMAGE_INSTANCE_DISPLAY_Y (ii)
|
|
|
1181 + IMAGE_INSTANCE_DISPLAY_HEIGHT (ii) > y
|
|
434
|
1182 &&
|
|
442
|
1183 IMAGE_INSTANCE_DISPLAY_Y (ii) < y + height
|
|
|
1184 &&
|
|
|
1185 !EQ (XCAR (rest), ignored_window))
|
|
428
|
1186 {
|
|
442
|
1187 unmap_subwindow (XCAR (rest));
|
|
428
|
1188 }
|
|
|
1189 }
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 /****************************************************************************
|
|
|
1193 redisplay_unmap_subwindows_maybe
|
|
|
1194
|
|
|
1195 Potentially subwindows from the area in the box defined by the given
|
|
|
1196 parameters.
|
|
|
1197 ****************************************************************************/
|
|
|
1198 void redisplay_unmap_subwindows_maybe (struct frame* f, int x, int y, int width, int height)
|
|
|
1199 {
|
|
442
|
1200 if (!NILP (XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f))))
|
|
428
|
1201 {
|
|
|
1202 redisplay_unmap_subwindows (f, x, y, width, height, Qnil);
|
|
|
1203 }
|
|
|
1204 }
|
|
|
1205
|
|
434
|
1206 static void redisplay_unmap_subwindows_except_us (struct frame* f, int x, int y, int width,
|
|
428
|
1207 int height, Lisp_Object subwindow)
|
|
|
1208 {
|
|
442
|
1209 if (!NILP (XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f))))
|
|
428
|
1210 {
|
|
|
1211 redisplay_unmap_subwindows (f, x, y, width, height, subwindow);
|
|
|
1212 }
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 /****************************************************************************
|
|
|
1216 redisplay_output_subwindow
|
|
|
1217
|
|
|
1218 output a subwindow. This code borrows heavily from the pixmap stuff,
|
|
|
1219 although is much simpler not needing to account for partial
|
|
|
1220 pixmaps, backgrounds etc.
|
|
|
1221 ****************************************************************************/
|
|
|
1222 void
|
|
434
|
1223 redisplay_output_subwindow (struct window *w,
|
|
428
|
1224 Lisp_Object image_instance,
|
|
|
1225 struct display_box* db, struct display_glyph_area* dga,
|
|
|
1226 face_index findex, int cursor_start, int cursor_width,
|
|
|
1227 int cursor_height)
|
|
|
1228 {
|
|
440
|
1229 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
|
|
428
|
1230 Lisp_Object window;
|
|
|
1231 struct display_glyph_area sdga;
|
|
|
1232
|
|
442
|
1233 dga->height = IMAGE_INSTANCE_HEIGHT (p);
|
|
|
1234 dga->width = IMAGE_INSTANCE_WIDTH (p);
|
|
|
1235
|
|
|
1236 /* The first thing we are going to do is update the display
|
|
|
1237 characteristics of the subwindow. This also clears the dirty
|
|
|
1238 flags as a side effect. */
|
|
|
1239 redisplay_subwindow (image_instance);
|
|
428
|
1240
|
|
|
1241 /* This makes the glyph area fit into the display area. */
|
|
|
1242 if (!redisplay_normalize_glyph_area (db, dga))
|
|
|
1243 return;
|
|
|
1244
|
|
|
1245 XSETWINDOW (window, w);
|
|
|
1246
|
|
|
1247 /* Clear the area the subwindow is going into. */
|
|
|
1248 redisplay_clear_clipped_region (window, findex,
|
|
|
1249 db, dga, 0, image_instance);
|
|
|
1250
|
|
|
1251 /* This shrinks the display box to exactly enclose the glyph
|
|
|
1252 area. */
|
|
|
1253 redisplay_normalize_display_box (db, dga);
|
|
|
1254
|
|
|
1255 /* if we can't view the whole window we can't view any of it. We
|
|
|
1256 have to be careful here since we may be being asked to display
|
|
|
1257 part of a subwindow, the rest of which is on-screen as well. We
|
|
|
1258 need to allow this case and map the entire subwindow. We also
|
|
|
1259 need to be careful since the subwindow could be outside the
|
|
|
1260 window in the gutter or modeline - we also need to allow these
|
|
|
1261 cases.*/
|
|
|
1262 sdga.xoffset = -dga->xoffset;
|
|
|
1263 sdga.yoffset = -dga->yoffset;
|
|
442
|
1264 sdga.height = IMAGE_INSTANCE_HEIGHT (p);
|
|
|
1265 sdga.width = IMAGE_INSTANCE_WIDTH (p);
|
|
434
|
1266
|
|
446
|
1267 if (redisplay_display_boxes_in_window_p (w, db, &sdga) == 0
|
|
|
1268 ||
|
|
|
1269 /* We only want to do full subwindow display for windows that
|
|
|
1270 are completely in the gutter, otherwise we must clip to be
|
|
|
1271 safe. */
|
|
|
1272 display_boxes_in_gutter_p (XFRAME (w->frame), db, &sdga) <= 0)
|
|
428
|
1273 {
|
|
|
1274 map_subwindow (image_instance, db->xpos, db->ypos, dga);
|
|
|
1275 }
|
|
|
1276 else
|
|
|
1277 {
|
|
|
1278 sdga.xoffset = sdga.yoffset = 0;
|
|
434
|
1279 map_subwindow (image_instance, db->xpos - dga->xoffset,
|
|
428
|
1280 db->ypos - dga->yoffset, &sdga);
|
|
|
1281 }
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 /****************************************************************************
|
|
|
1285 redisplay_output_layout
|
|
|
1286
|
|
|
1287 Output a widget hierarchy. This can safely call itself recursively.
|
|
442
|
1288
|
|
|
1289 The complexity of outputting layouts is deciding whether to do it or
|
|
|
1290 not. Consider a layout enclosing some text, the text changes and is
|
|
|
1291 marked as dirty, but the enclosing layout has not been marked as
|
|
|
1292 dirty so no updates occur and the text will potentially be truncated.
|
|
|
1293 Alternatively we hold a back pointer in the image instance to the
|
|
|
1294 parent and mark the parent as dirty. But the layout code assumes that
|
|
|
1295 if the layout is dirty then the whole layout should be redisplayed,
|
|
|
1296 so we then get lots of flashing even though only the text has changed
|
|
|
1297 size. Of course if the text shrinks in size then we do actually need
|
|
|
1298 to redisplay the layout to repaint the exposed area. So what happens
|
|
|
1299 if we make a non-structural change like changing color? Either we
|
|
|
1300 redisplay everything, or we redisplay nothing. These are exactly the
|
|
|
1301 issues lwlib has to grapple with. We really need to know what has
|
|
|
1302 actually changed and make a layout decision based on that. We also
|
|
|
1303 really need to know what has changed so that we can only make the
|
|
|
1304 necessary changes in update_subwindow. This has all now been
|
|
|
1305 implemented, Viva la revolution!
|
|
428
|
1306 ****************************************************************************/
|
|
|
1307 void
|
|
442
|
1308 redisplay_output_layout (Lisp_Object domain,
|
|
428
|
1309 Lisp_Object image_instance,
|
|
|
1310 struct display_box* db, struct display_glyph_area* dga,
|
|
|
1311 face_index findex, int cursor_start, int cursor_width,
|
|
|
1312 int cursor_height)
|
|
|
1313 {
|
|
440
|
1314 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
|
|
442
|
1315 Lisp_Object rest, window = DOMAIN_WINDOW (domain);
|
|
428
|
1316 Emchar_dynarr *buf = Dynarr_new (Emchar);
|
|
442
|
1317 struct window *w = XWINDOW (window);
|
|
|
1318 struct device *d = DOMAIN_XDEVICE (domain);
|
|
428
|
1319 int layout_height, layout_width;
|
|
|
1320
|
|
442
|
1321 layout_height = glyph_height (image_instance, domain);
|
|
|
1322 layout_width = glyph_width (image_instance, domain);
|
|
428
|
1323
|
|
|
1324 dga->height = layout_height;
|
|
|
1325 dga->width = layout_width;
|
|
442
|
1326 #ifdef DEBUG_WIDGET_OUTPUT
|
|
|
1327 printf ("outputing layout glyph %p\n", p);
|
|
|
1328 #endif
|
|
428
|
1329 /* This makes the glyph area fit into the display area. */
|
|
|
1330 if (!redisplay_normalize_glyph_area (db, dga))
|
|
|
1331 return;
|
|
|
1332
|
|
|
1333 /* Highly dodgy optimization. We want to only output the whole
|
|
|
1334 layout if we really have to. */
|
|
442
|
1335 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (p)
|
|
|
1336 || IMAGE_INSTANCE_LAYOUT_CHANGED (p)
|
|
|
1337 || IMAGE_INSTANCE_WIDGET_FACE_CHANGED (p)
|
|
|
1338 || IMAGE_INSTANCE_SIZE_CHANGED (p)
|
|
|
1339 || IMAGE_INSTANCE_WIDGET_ITEMS_CHANGED (p))
|
|
428
|
1340 {
|
|
|
1341 /* First clear the area we are drawing into. This is the easiest
|
|
|
1342 thing to do since we have many gaps that we have to make sure are
|
|
|
1343 filled in. */
|
|
|
1344 redisplay_clear_clipped_region (window, findex, db, dga, 1, Qnil);
|
|
434
|
1345
|
|
428
|
1346 /* Output a border if required */
|
|
|
1347 if (!NILP (IMAGE_INSTANCE_LAYOUT_BORDER (p)))
|
|
|
1348 {
|
|
|
1349 int edges = 0;
|
|
|
1350 enum edge_style style;
|
|
|
1351 int ypos = db->ypos;
|
|
|
1352 int height = dga->height;
|
|
434
|
1353
|
|
428
|
1354 if (dga->xoffset >= 0)
|
|
|
1355 edges |= EDGE_LEFT;
|
|
|
1356 if (dga->width - dga->xoffset == layout_width)
|
|
|
1357 edges |= EDGE_RIGHT;
|
|
|
1358 if (dga->yoffset >= 0)
|
|
|
1359 edges |= EDGE_TOP;
|
|
|
1360 if (dga->height - dga->yoffset == layout_height)
|
|
|
1361 edges |= EDGE_BOTTOM;
|
|
434
|
1362
|
|
428
|
1363 if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_in))
|
|
|
1364 style = EDGE_ETCHED_IN;
|
|
|
1365 else if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_out))
|
|
|
1366 style = EDGE_ETCHED_OUT;
|
|
|
1367 else if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qbevel_in))
|
|
|
1368 style = EDGE_BEVEL_IN;
|
|
|
1369 else if (INTP (IMAGE_INSTANCE_LAYOUT_BORDER (p)))
|
|
|
1370 {
|
|
|
1371 style = EDGE_ETCHED_IN;
|
|
|
1372 if (edges & EDGE_TOP)
|
|
|
1373 {
|
|
|
1374 ypos += XINT (IMAGE_INSTANCE_LAYOUT_BORDER (p));
|
|
|
1375 height -= XINT (IMAGE_INSTANCE_LAYOUT_BORDER (p));
|
|
|
1376 }
|
|
|
1377 }
|
|
|
1378 else
|
|
|
1379 style = EDGE_BEVEL_OUT;
|
|
|
1380
|
|
434
|
1381 MAYBE_DEVMETH (d, bevel_area,
|
|
428
|
1382 (w, findex, db->xpos,
|
|
434
|
1383 ypos,
|
|
428
|
1384 dga->width, height, 2, edges, style));
|
|
|
1385 }
|
|
|
1386 }
|
|
434
|
1387
|
|
428
|
1388 /* This shrinks the display box to exactly enclose the glyph
|
|
|
1389 area. */
|
|
|
1390 redisplay_normalize_display_box (db, dga);
|
|
|
1391
|
|
|
1392 /* Flip through the widgets in the layout displaying as necessary */
|
|
|
1393 LIST_LOOP (rest, IMAGE_INSTANCE_LAYOUT_CHILDREN (p))
|
|
|
1394 {
|
|
442
|
1395 Lisp_Object child = glyph_image_instance (XCAR (rest), image_instance,
|
|
|
1396 ERROR_ME_NOT, 1);
|
|
428
|
1397
|
|
|
1398 struct display_box cdb;
|
|
|
1399 /* For losing HP-UX */
|
|
|
1400 cdb.xpos = db->xpos;
|
|
|
1401 cdb.ypos = db->ypos;
|
|
|
1402 cdb.width = db->width;
|
|
|
1403 cdb.height = db->height;
|
|
|
1404
|
|
|
1405 /* First determine if the image is visible at all */
|
|
|
1406 if (IMAGE_INSTANCEP (child))
|
|
|
1407 {
|
|
440
|
1408 Lisp_Image_Instance* childii = XIMAGE_INSTANCE (child);
|
|
442
|
1409
|
|
428
|
1410 /* The enclosing layout offsets are +ve at this point */
|
|
|
1411 struct display_glyph_area cdga;
|
|
|
1412 cdga.xoffset = IMAGE_INSTANCE_XOFFSET (childii) - dga->xoffset;
|
|
|
1413 cdga.yoffset = IMAGE_INSTANCE_YOFFSET (childii) - dga->yoffset;
|
|
442
|
1414 cdga.width = glyph_width (child, image_instance);
|
|
|
1415 cdga.height = glyph_height (child, image_instance);
|
|
|
1416
|
|
|
1417 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) =
|
|
|
1418 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (p);
|
|
428
|
1419
|
|
|
1420 /* Although normalization is done by the output routines
|
|
|
1421 we have to do it here so that they don't try and
|
|
|
1422 clear all of db. This is true below also. */
|
|
|
1423 if (redisplay_normalize_glyph_area (&cdb, &cdga))
|
|
|
1424 {
|
|
|
1425 redisplay_normalize_display_box (&cdb, &cdga);
|
|
|
1426 /* Since the display boxes will now be totally in the
|
|
|
1427 window if they are visible at all we can now check this easily. */
|
|
|
1428 if (cdb.xpos < db->xpos || cdb.ypos < db->ypos
|
|
|
1429 || cdb.xpos + cdb.width > db->xpos + db->width
|
|
|
1430 || cdb.ypos + cdb.height > db->ypos + db->height)
|
|
|
1431 continue;
|
|
|
1432 /* We have to invert the offset here as normalization
|
|
|
1433 will have made them positive which the output
|
|
442
|
1434 routines will treat as a truly +ve offset. */
|
|
428
|
1435 cdga.xoffset = -cdga.xoffset;
|
|
|
1436 cdga.yoffset = -cdga.yoffset;
|
|
|
1437
|
|
|
1438 switch (IMAGE_INSTANCE_TYPE (childii))
|
|
|
1439 {
|
|
|
1440 case IMAGE_TEXT:
|
|
|
1441 {
|
|
|
1442 /* #### This is well hacked and could use some
|
|
|
1443 generalisation.*/
|
|
434
|
1444 if (redisplay_normalize_glyph_area (&cdb, &cdga)
|
|
|
1445 &&
|
|
442
|
1446 (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) ||
|
|
|
1447 IMAGE_INSTANCE_DIRTYP (childii)))
|
|
428
|
1448 {
|
|
|
1449 struct display_line dl; /* this is fake */
|
|
|
1450 Lisp_Object string =
|
|
|
1451 IMAGE_INSTANCE_TEXT_STRING (childii);
|
|
442
|
1452 unsigned char charsets[NUM_LEADING_BYTES];
|
|
|
1453 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, findex);
|
|
|
1454
|
|
|
1455 find_charsets_in_bufbyte_string (charsets,
|
|
|
1456 XSTRING_DATA (string),
|
|
|
1457 XSTRING_LENGTH (string));
|
|
|
1458 ensure_face_cachel_complete (cachel, window, charsets);
|
|
|
1459
|
|
428
|
1460 convert_bufbyte_string_into_emchar_dynarr
|
|
|
1461 (XSTRING_DATA (string), XSTRING_LENGTH (string), buf);
|
|
434
|
1462
|
|
428
|
1463 redisplay_normalize_display_box (&cdb, &cdga);
|
|
|
1464 /* Offsets are now +ve again so be careful
|
|
|
1465 when fixing up the display line. */
|
|
|
1466 xzero (dl);
|
|
|
1467 /* Munge boxes into display lines. */
|
|
|
1468 dl.ypos = (cdb.ypos - cdga.yoffset)
|
|
442
|
1469 + glyph_ascent (child, image_instance);
|
|
|
1470 dl.ascent = glyph_ascent (child, image_instance);
|
|
|
1471 dl.descent = glyph_descent (child, image_instance);
|
|
428
|
1472 dl.top_clip = cdga.yoffset;
|
|
|
1473 dl.clip = (dl.ypos + dl.descent) - (cdb.ypos + cdb.height);
|
|
|
1474 /* output_string doesn't understand offsets in
|
|
|
1475 the same way as other routines - we have to
|
|
|
1476 add the offset to the width so that we
|
|
|
1477 output the full string. */
|
|
|
1478 MAYBE_DEVMETH (d, output_string, (w, &dl, buf, cdb.xpos,
|
|
|
1479 cdga.xoffset, cdb.xpos,
|
|
|
1480 cdga.width + cdga.xoffset,
|
|
|
1481 findex, 0, 0, 0, 0));
|
|
|
1482 Dynarr_reset (buf);
|
|
|
1483 }
|
|
|
1484 }
|
|
|
1485 break;
|
|
434
|
1486
|
|
428
|
1487 case IMAGE_MONO_PIXMAP:
|
|
|
1488 case IMAGE_COLOR_PIXMAP:
|
|
442
|
1489 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii)
|
|
|
1490 || IMAGE_INSTANCE_DIRTYP (childii))
|
|
428
|
1491 redisplay_output_pixmap (w, child, &cdb, &cdga, findex,
|
|
|
1492 0, 0, 0, 0);
|
|
|
1493 break;
|
|
434
|
1494
|
|
428
|
1495 case IMAGE_WIDGET:
|
|
442
|
1496 if (EQ (IMAGE_INSTANCE_WIDGET_TYPE (childii), Qlayout))
|
|
|
1497 {
|
|
|
1498 redisplay_output_layout (image_instance, child, &cdb, &cdga, findex,
|
|
|
1499 0, 0, 0);
|
|
|
1500 break;
|
|
|
1501 }
|
|
428
|
1502 case IMAGE_SUBWINDOW:
|
|
442
|
1503 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) ||
|
|
|
1504 IMAGE_INSTANCE_DIRTYP (childii))
|
|
428
|
1505 redisplay_output_subwindow (w, child, &cdb, &cdga, findex,
|
|
|
1506 0, 0, 0);
|
|
|
1507 break;
|
|
434
|
1508
|
|
428
|
1509 case IMAGE_NOTHING:
|
|
|
1510 /* nothing is as nothing does */
|
|
|
1511 break;
|
|
434
|
1512
|
|
428
|
1513 case IMAGE_POINTER:
|
|
|
1514 default:
|
|
|
1515 abort ();
|
|
|
1516 }
|
|
|
1517 }
|
|
442
|
1518 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) = 0;
|
|
428
|
1519 }
|
|
|
1520 }
|
|
442
|
1521
|
|
|
1522 /* Update any display properties. I'm not sure whether this actually
|
|
|
1523 does anything for layouts except clear the changed flags. */
|
|
|
1524 redisplay_subwindow (image_instance);
|
|
|
1525
|
|
428
|
1526 Dynarr_free (buf);
|
|
|
1527 }
|
|
|
1528
|
|
|
1529 /****************************************************************************
|
|
|
1530 redisplay_output_pixmap
|
|
|
1531
|
|
|
1532
|
|
|
1533 output a pixmap.
|
|
|
1534 ****************************************************************************/
|
|
|
1535 void
|
|
434
|
1536 redisplay_output_pixmap (struct window *w,
|
|
428
|
1537 Lisp_Object image_instance,
|
|
|
1538 struct display_box* db, struct display_glyph_area* dga,
|
|
|
1539 face_index findex, int cursor_start, int cursor_width,
|
|
|
1540 int cursor_height, int offset_bitmap)
|
|
|
1541 {
|
|
|
1542 struct frame *f = XFRAME (w->frame);
|
|
|
1543 struct device *d = XDEVICE (f->device);
|
|
440
|
1544 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
|
|
428
|
1545 Lisp_Object window;
|
|
|
1546 XSETWINDOW (window, w);
|
|
|
1547
|
|
|
1548 dga->height = IMAGE_INSTANCE_PIXMAP_HEIGHT (p);
|
|
|
1549 dga->width = IMAGE_INSTANCE_PIXMAP_WIDTH (p);
|
|
|
1550
|
|
|
1551 /* This makes the glyph area fit into the display area. */
|
|
|
1552 if (!redisplay_normalize_glyph_area (db, dga))
|
|
|
1553 return;
|
|
|
1554
|
|
|
1555 /* Clear the area the pixmap is going into. The pixmap itself will
|
|
|
1556 always take care of the full width. We don't want to clear where
|
|
|
1557 it is going to go in order to avoid flicker. So, all we have to
|
|
|
1558 take care of is any area above or below the pixmap. If the pixmap
|
|
|
1559 has a mask in which case we have to clear the whole damn thing
|
|
|
1560 since we can't yet clear just the area not included in the
|
|
|
1561 mask. */
|
|
|
1562 if (!offset_bitmap)
|
|
|
1563 {
|
|
|
1564 redisplay_clear_clipped_region (window, findex,
|
|
434
|
1565 db, dga,
|
|
442
|
1566 (IMAGE_INSTANCE_PIXMAP_MASK (p) != 0),
|
|
428
|
1567 Qnil);
|
|
|
1568
|
|
|
1569 /* This shrinks the display box to exactly enclose the glyph
|
|
|
1570 area. */
|
|
|
1571 redisplay_normalize_display_box (db, dga);
|
|
|
1572 }
|
|
|
1573 assert (db->xpos >= 0 && db->ypos >= 0);
|
|
|
1574
|
|
|
1575 MAYBE_DEVMETH (d, output_pixmap, (w, image_instance,
|
|
|
1576 db, dga,
|
|
|
1577 findex, cursor_start,
|
|
|
1578 cursor_width, cursor_height,
|
|
|
1579 offset_bitmap));
|
|
|
1580 }
|
|
|
1581
|
|
|
1582 /****************************************************************************
|
|
|
1583 redisplay_clear_region
|
|
|
1584
|
|
|
1585 Clear the area in the box defined by the given parameters using the
|
|
|
1586 given face. This has been generalised so that subwindows can be
|
|
|
1587 coped with effectively.
|
|
|
1588 ****************************************************************************/
|
|
|
1589 void
|
|
|
1590 redisplay_clear_region (Lisp_Object locale, face_index findex, int x, int y,
|
|
|
1591 int width, int height)
|
|
|
1592 {
|
|
|
1593 struct window *w = NULL;
|
|
|
1594 struct frame *f = NULL;
|
|
|
1595 struct device *d;
|
|
|
1596 Lisp_Object background_pixmap = Qunbound;
|
|
|
1597 Lisp_Object fcolor = Qnil, bcolor = Qnil;
|
|
|
1598
|
|
|
1599 if (!width || !height)
|
|
|
1600 return;
|
|
|
1601
|
|
|
1602 if (WINDOWP (locale))
|
|
|
1603 {
|
|
|
1604 w = XWINDOW (locale);
|
|
|
1605 f = XFRAME (w->frame);
|
|
|
1606 }
|
|
|
1607 else if (FRAMEP (locale))
|
|
|
1608 {
|
|
|
1609 w = NULL;
|
|
|
1610 f = XFRAME (locale);
|
|
|
1611 }
|
|
|
1612 else
|
|
|
1613 abort ();
|
|
|
1614
|
|
|
1615 d = XDEVICE (f->device);
|
|
|
1616
|
|
|
1617 /* if we have subwindows in the region we have to unmap them */
|
|
|
1618 redisplay_unmap_subwindows_maybe (f, x, y, width, height);
|
|
|
1619
|
|
|
1620 /* #### This isn't quite right for when this function is called
|
|
|
1621 from the toolbar code. */
|
|
434
|
1622
|
|
428
|
1623 /* Don't use a backing pixmap in the border area */
|
|
|
1624 if (x >= FRAME_LEFT_BORDER_END (f)
|
|
|
1625 && x < FRAME_RIGHT_BORDER_START (f)
|
|
|
1626 && y >= FRAME_TOP_BORDER_END (f)
|
|
|
1627 && y < FRAME_BOTTOM_BORDER_START (f))
|
|
|
1628 {
|
|
|
1629 Lisp_Object temp;
|
|
434
|
1630
|
|
428
|
1631 if (w)
|
|
|
1632 {
|
|
|
1633 temp = WINDOW_FACE_CACHEL_BACKGROUND_PIXMAP (w, findex);
|
|
434
|
1634
|
|
428
|
1635 if (IMAGE_INSTANCEP (temp)
|
|
|
1636 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp)))
|
|
|
1637 {
|
|
|
1638 /* #### maybe we could implement such that a string
|
|
|
1639 can be a background pixmap? */
|
|
|
1640 background_pixmap = temp;
|
|
|
1641 }
|
|
|
1642 }
|
|
|
1643 else
|
|
|
1644 {
|
|
|
1645 temp = FACE_BACKGROUND_PIXMAP (Vdefault_face, locale);
|
|
434
|
1646
|
|
428
|
1647 if (IMAGE_INSTANCEP (temp)
|
|
|
1648 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp)))
|
|
|
1649 {
|
|
|
1650 background_pixmap = temp;
|
|
|
1651 }
|
|
|
1652 }
|
|
434
|
1653 }
|
|
428
|
1654
|
|
|
1655 if (!UNBOUNDP (background_pixmap) &&
|
|
|
1656 XIMAGE_INSTANCE_PIXMAP_DEPTH (background_pixmap) == 0)
|
|
|
1657 {
|
|
|
1658 if (w)
|
|
|
1659 {
|
|
|
1660 fcolor = WINDOW_FACE_CACHEL_FOREGROUND (w, findex);
|
|
|
1661 bcolor = WINDOW_FACE_CACHEL_BACKGROUND (w, findex);
|
|
|
1662 }
|
|
|
1663 else
|
|
|
1664 {
|
|
|
1665 fcolor = FACE_FOREGROUND (Vdefault_face, locale);
|
|
|
1666 bcolor = FACE_BACKGROUND (Vdefault_face, locale);
|
|
|
1667 }
|
|
|
1668 }
|
|
|
1669 else
|
|
|
1670 {
|
|
|
1671 fcolor = (w ?
|
|
|
1672 WINDOW_FACE_CACHEL_BACKGROUND (w, findex) :
|
|
|
1673 FACE_BACKGROUND (Vdefault_face, locale));
|
|
434
|
1674
|
|
428
|
1675 }
|
|
434
|
1676
|
|
428
|
1677 if (UNBOUNDP (background_pixmap))
|
|
|
1678 background_pixmap = Qnil;
|
|
434
|
1679
|
|
|
1680 DEVMETH (d, clear_region,
|
|
428
|
1681 (locale, d, f, findex, x, y, width, height, fcolor, bcolor, background_pixmap));
|
|
|
1682 }
|
|
|
1683
|
|
|
1684 /****************************************************************************
|
|
|
1685 redisplay_clear_clipped_region
|
|
|
1686
|
|
|
1687 Clear the area in the dest display_box not covered by the src
|
|
442
|
1688 display_glyph_area using the given face. This is a common occurrence
|
|
428
|
1689 for images shorter than the display line. Clipping can be played
|
|
|
1690 around with by altering these. glyphsrc should be normalized.
|
|
|
1691 ****************************************************************************/
|
|
|
1692 static void
|
|
434
|
1693 redisplay_clear_clipped_region (Lisp_Object window, face_index findex,
|
|
|
1694 struct display_box* dest, struct display_glyph_area* glyphsrc,
|
|
428
|
1695 int fullheight_p, Lisp_Object ignored_subwindow)
|
|
|
1696 {
|
|
|
1697 /* assume dest->xpos >= 0 */
|
|
|
1698 int clear_x;
|
|
|
1699 struct frame* f = XFRAME (XWINDOW (window)->frame);
|
|
|
1700
|
|
|
1701 if (glyphsrc->xoffset > 0)
|
|
|
1702 {
|
|
|
1703 clear_x = dest->xpos + glyphsrc->xoffset;
|
|
|
1704 }
|
|
|
1705 else
|
|
|
1706 {
|
|
|
1707 clear_x = dest->xpos;
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 /* If we need the whole height cleared then just do it. */
|
|
|
1711 if (fullheight_p)
|
|
|
1712 {
|
|
|
1713 redisplay_clear_region (window, findex, clear_x, dest->ypos,
|
|
|
1714 glyphsrc->width, dest->height);
|
|
|
1715 }
|
|
|
1716 else
|
|
|
1717 {
|
|
434
|
1718 int yoffset = (glyphsrc->yoffset > 0 ? glyphsrc->yoffset : 0);
|
|
|
1719
|
|
428
|
1720 /* We need to make sure that subwindows are unmapped from the
|
|
|
1721 whole area. */
|
|
|
1722 redisplay_unmap_subwindows_except_us (f, clear_x, dest->ypos,
|
|
|
1723 glyphsrc->width, dest->height,
|
|
|
1724 ignored_subwindow);
|
|
|
1725 /* first the top box */
|
|
|
1726 if (yoffset > 0)
|
|
|
1727 {
|
|
|
1728 redisplay_clear_region (window, findex, clear_x, dest->ypos,
|
|
|
1729 glyphsrc->width, yoffset);
|
|
434
|
1730
|
|
428
|
1731 }
|
|
|
1732 /* Then the bottom box */
|
|
|
1733 if (yoffset + glyphsrc->height < dest->height)
|
|
|
1734 {
|
|
|
1735 redisplay_clear_region (window, findex, clear_x,
|
|
|
1736 dest->ypos + yoffset + glyphsrc->height,
|
|
434
|
1737 glyphsrc->width,
|
|
428
|
1738 dest->height - (yoffset + glyphsrc->height));
|
|
|
1739
|
|
|
1740 }
|
|
|
1741 }
|
|
|
1742 }
|
|
|
1743
|
|
|
1744 /*****************************************************************************
|
|
|
1745 redisplay_normalize_glyph_area
|
|
|
1746 redisplay_normalize_display_box
|
|
|
1747
|
|
|
1748 Calculate the visible box for displaying src in dest.
|
|
|
1749 ****************************************************************************/
|
|
|
1750 int
|
|
434
|
1751 redisplay_normalize_glyph_area (struct display_box* dest,
|
|
428
|
1752 struct display_glyph_area* glyphsrc)
|
|
|
1753 {
|
|
|
1754 if (dest->xpos + glyphsrc->xoffset > dest->xpos + dest->width
|
|
|
1755 ||
|
|
|
1756 dest->ypos + glyphsrc->yoffset > dest->ypos + dest->height
|
|
|
1757 ||
|
|
|
1758 -glyphsrc->xoffset >= glyphsrc->width
|
|
|
1759 ||
|
|
|
1760 -glyphsrc->yoffset >= glyphsrc->height)
|
|
|
1761 {
|
|
|
1762 /* It's all clipped out */
|
|
|
1763 return 0;
|
|
|
1764 }
|
|
|
1765
|
|
|
1766 /* Horizontal offsets. This works because xoffset can be -ve as well as +ve */
|
|
|
1767 if (dest->xpos + glyphsrc->xoffset + glyphsrc->width > dest->xpos + dest->width)
|
|
|
1768 {
|
|
|
1769 if (glyphsrc->xoffset > 0)
|
|
|
1770 glyphsrc->width = dest->width - glyphsrc->xoffset;
|
|
|
1771 else
|
|
|
1772 glyphsrc->width = dest->width;
|
|
|
1773 }
|
|
|
1774
|
|
|
1775 if (glyphsrc->xoffset < 0)
|
|
|
1776 glyphsrc->width += glyphsrc->xoffset;
|
|
|
1777
|
|
|
1778 /* Vertical offsets. This works because yoffset can be -ve as well as +ve */
|
|
|
1779 if (dest->ypos + glyphsrc->yoffset + glyphsrc->height > dest->ypos + dest->height)
|
|
|
1780 {
|
|
|
1781 if (glyphsrc->yoffset > 0)
|
|
|
1782 glyphsrc->height = dest->height - glyphsrc->yoffset;
|
|
|
1783 else
|
|
|
1784 glyphsrc->height = dest->height;
|
|
|
1785 }
|
|
|
1786
|
|
|
1787 if (glyphsrc->yoffset < 0)
|
|
|
1788 glyphsrc->height += glyphsrc->yoffset;
|
|
|
1789
|
|
|
1790 return 1;
|
|
|
1791 }
|
|
|
1792
|
|
|
1793 static void
|
|
434
|
1794 redisplay_normalize_display_box (struct display_box* dest,
|
|
428
|
1795 struct display_glyph_area* glyphsrc)
|
|
|
1796 {
|
|
|
1797 /* Adjust the destination area. At the end of this the destination
|
|
|
1798 area will exactly enclose the glyph area. The only remaining
|
|
|
1799 adjustment will be offsets into the glyph area. */
|
|
|
1800
|
|
|
1801 /* Horizontal adjustment. */
|
|
|
1802 if (glyphsrc->xoffset > 0)
|
|
|
1803 {
|
|
|
1804 dest->xpos += glyphsrc->xoffset;
|
|
|
1805 dest->width -= glyphsrc->xoffset;
|
|
|
1806 glyphsrc->xoffset = 0;
|
|
|
1807 }
|
|
|
1808 else
|
|
|
1809 glyphsrc->xoffset = -glyphsrc->xoffset;
|
|
|
1810
|
|
|
1811 if (glyphsrc->width < dest->width)
|
|
|
1812 dest->width = glyphsrc->width;
|
|
|
1813
|
|
|
1814 /* Vertical adjustment. */
|
|
|
1815 if (glyphsrc->yoffset > 0)
|
|
|
1816 {
|
|
|
1817 dest->ypos += glyphsrc->yoffset;
|
|
|
1818 dest->height -= glyphsrc->yoffset;
|
|
|
1819 glyphsrc->yoffset = 0;
|
|
|
1820 }
|
|
|
1821 else
|
|
|
1822 glyphsrc->yoffset = -glyphsrc->yoffset;
|
|
|
1823
|
|
|
1824 if (glyphsrc->height < dest->height)
|
|
|
1825 dest->height = glyphsrc->height;
|
|
|
1826 }
|
|
|
1827
|
|
|
1828 /*****************************************************************************
|
|
|
1829 redisplay_display_boxes_in_window_p
|
|
|
1830
|
|
446
|
1831 Determine whether the required display_glyph_area is completely inside
|
|
|
1832 the window. -1 means the display_box is not in the window. 1 means the
|
|
|
1833 display_box and the display_glyph_area are in the window. 0 means
|
|
428
|
1834 the display_box is in the window but the display_glyph_area is not.
|
|
|
1835 ****************************************************************************/
|
|
|
1836 static int
|
|
|
1837 redisplay_display_boxes_in_window_p (struct window* w,
|
|
|
1838 struct display_box* db,
|
|
|
1839 struct display_glyph_area* dga)
|
|
|
1840 {
|
|
|
1841 int left = WINDOW_TEXT_LEFT (w);
|
|
|
1842 int right = WINDOW_TEXT_RIGHT (w);
|
|
|
1843 int top = WINDOW_TEXT_TOP (w);
|
|
|
1844 int bottom = WINDOW_TEXT_BOTTOM (w);
|
|
|
1845
|
|
|
1846 if (db->xpos < left || db->ypos < top
|
|
|
1847 || db->xpos + db->width > right
|
|
|
1848 || db->ypos + db->height > bottom)
|
|
446
|
1849 /* We are not displaying in a window at all */
|
|
|
1850 return -1;
|
|
434
|
1851
|
|
428
|
1852 if (db->xpos + dga->xoffset >= left
|
|
|
1853 &&
|
|
|
1854 db->ypos + dga->yoffset >= top
|
|
|
1855 &&
|
|
|
1856 db->xpos + dga->xoffset + dga->width <= right
|
|
|
1857 &&
|
|
|
1858 db->ypos + dga->yoffset + dga->height <= bottom)
|
|
|
1859 return 1;
|
|
|
1860
|
|
446
|
1861 return 0;
|
|
428
|
1862 }
|
|
|
1863
|
|
|
1864 /*****************************************************************************
|
|
|
1865 redisplay_calculate_display_boxes
|
|
|
1866
|
|
|
1867 Convert from rune/display_line co-ordinates to display_box
|
|
|
1868 co-ordinates.
|
|
|
1869 ****************************************************************************/
|
|
|
1870 int
|
|
|
1871 redisplay_calculate_display_boxes (struct display_line *dl, int xpos,
|
|
|
1872 int xoffset, int start_pixpos, int width,
|
|
434
|
1873 struct display_box* dest,
|
|
428
|
1874 struct display_glyph_area* src)
|
|
|
1875 {
|
|
|
1876 dest->xpos = xpos;
|
|
|
1877 dest->ypos = DISPLAY_LINE_YPOS (dl);
|
|
|
1878 dest->width = width;
|
|
|
1879 dest->height = DISPLAY_LINE_HEIGHT (dl);
|
|
|
1880
|
|
|
1881 src->xoffset = -xoffset;
|
|
|
1882 src->yoffset = -dl->top_clip;
|
|
|
1883 src->width = 0;
|
|
|
1884 src->height = 0;
|
|
|
1885
|
|
|
1886 if (start_pixpos >=0 && start_pixpos > xpos)
|
|
|
1887 {
|
|
|
1888 /* Oops, we're asking for a start outside of the displayable
|
|
|
1889 area. */
|
|
|
1890 if (start_pixpos > xpos + width)
|
|
|
1891 return 0;
|
|
|
1892 dest->xpos = start_pixpos;
|
|
|
1893 dest->width -= (start_pixpos - xpos);
|
|
|
1894 /* Offsets are -ve when we want to clip pixels off the displayed
|
|
|
1895 glyph. */
|
|
|
1896 src->xoffset -= (start_pixpos - xpos);
|
|
|
1897 }
|
|
|
1898
|
|
|
1899 return 1;
|
|
|
1900 }
|
|
|
1901
|
|
|
1902 /*****************************************************************************
|
|
|
1903 redisplay_clear_top_of_window
|
|
|
1904
|
|
|
1905 If window is topmost, clear the internal border above it.
|
|
|
1906 ****************************************************************************/
|
|
|
1907 static void
|
|
|
1908 redisplay_clear_top_of_window (struct window *w)
|
|
|
1909 {
|
|
|
1910 Lisp_Object window;
|
|
|
1911 XSETWINDOW (window, w);
|
|
|
1912
|
|
|
1913 if (!NILP (Fwindow_highest_p (window)))
|
|
|
1914 {
|
|
|
1915 struct frame *f = XFRAME (w->frame);
|
|
|
1916 int x, y, width, height;
|
|
|
1917
|
|
|
1918 x = w->pixel_left;
|
|
|
1919 width = w->pixel_width;
|
|
|
1920
|
|
|
1921 if (window_is_leftmost (w))
|
|
|
1922 {
|
|
|
1923 x -= FRAME_BORDER_WIDTH (f);
|
|
|
1924 width += FRAME_BORDER_WIDTH (f);
|
|
|
1925 }
|
|
|
1926 if (window_is_rightmost (w))
|
|
|
1927 width += FRAME_BORDER_WIDTH (f);
|
|
|
1928
|
|
|
1929 y = FRAME_TOP_BORDER_START (f) - 1;
|
|
|
1930 height = FRAME_BORDER_HEIGHT (f) + 1;
|
|
|
1931
|
|
|
1932 redisplay_clear_region (window, DEFAULT_INDEX, x, y, width, height);
|
|
|
1933 }
|
|
|
1934 }
|
|
|
1935
|
|
|
1936 /*****************************************************************************
|
|
|
1937 redisplay_clear_to_window_end
|
|
|
1938
|
|
|
1939 Clear the area between ypos1 and ypos2. Each margin area and the
|
|
|
1940 text area is handled separately since they may each have their own
|
|
|
1941 background color.
|
|
|
1942 ****************************************************************************/
|
|
|
1943 void
|
|
|
1944 redisplay_clear_to_window_end (struct window *w, int ypos1, int ypos2)
|
|
|
1945 {
|
|
|
1946 struct frame *f = XFRAME (w->frame);
|
|
|
1947 struct device *d = XDEVICE (f->device);
|
|
|
1948
|
|
|
1949 if (HAS_DEVMETH_P (d, clear_to_window_end))
|
|
|
1950 DEVMETH (d, clear_to_window_end, (w, ypos1, ypos2));
|
|
|
1951 else
|
|
|
1952 {
|
|
|
1953 int height = ypos2 - ypos1;
|
|
434
|
1954
|
|
428
|
1955 if (height)
|
|
|
1956 {
|
|
|
1957 Lisp_Object window;
|
|
|
1958 int bflag = 0 ; /* (window_needs_vertical_divider (w) ? 0 : 1);*/
|
|
|
1959 layout_bounds bounds;
|
|
434
|
1960
|
|
428
|
1961 bounds = calculate_display_line_boundaries (w, bflag);
|
|
|
1962 XSETWINDOW (window, w);
|
|
|
1963
|
|
|
1964 if (window_is_leftmost (w))
|
|
|
1965 redisplay_clear_region (window, DEFAULT_INDEX, FRAME_LEFT_BORDER_START (f),
|
|
|
1966 ypos1, FRAME_BORDER_WIDTH (f), height);
|
|
434
|
1967
|
|
428
|
1968 if (bounds.left_in - bounds.left_out > 0)
|
|
|
1969 redisplay_clear_region (window,
|
|
|
1970 get_builtin_face_cache_index (w, Vleft_margin_face),
|
|
|
1971 bounds.left_out, ypos1,
|
|
|
1972 bounds.left_in - bounds.left_out, height);
|
|
434
|
1973
|
|
428
|
1974 if (bounds.right_in - bounds.left_in > 0)
|
|
434
|
1975 redisplay_clear_region (window,
|
|
428
|
1976 DEFAULT_INDEX,
|
|
|
1977 bounds.left_in, ypos1,
|
|
|
1978 bounds.right_in - bounds.left_in, height);
|
|
434
|
1979
|
|
428
|
1980 if (bounds.right_out - bounds.right_in > 0)
|
|
|
1981 redisplay_clear_region (window,
|
|
|
1982 get_builtin_face_cache_index (w, Vright_margin_face),
|
|
|
1983 bounds.right_in, ypos1,
|
|
|
1984 bounds.right_out - bounds.right_in, height);
|
|
434
|
1985
|
|
428
|
1986 if (window_is_rightmost (w))
|
|
|
1987 redisplay_clear_region (window, DEFAULT_INDEX, FRAME_RIGHT_BORDER_START (f),
|
|
|
1988 ypos1, FRAME_BORDER_WIDTH (f), height);
|
|
|
1989 }
|
|
|
1990 }
|
|
|
1991 }
|
|
|
1992
|
|
|
1993 /*****************************************************************************
|
|
|
1994 redisplay_clear_bottom_of_window
|
|
|
1995
|
|
|
1996 Clear window from right below the last display line to right above
|
|
|
1997 the modeline. The calling function can limit the area actually
|
|
|
1998 erased by setting min_start and/or max_end to positive values.
|
|
|
1999 ****************************************************************************/
|
|
|
2000 void
|
|
|
2001 redisplay_clear_bottom_of_window (struct window *w, display_line_dynarr *ddla,
|
|
|
2002 int min_start, int max_end)
|
|
|
2003 {
|
|
|
2004 struct frame *f = XFRAME (w->frame);
|
|
|
2005 int ypos1, ypos2;
|
|
|
2006 int ddla_len = Dynarr_length (ddla);
|
|
|
2007
|
|
|
2008 ypos2 = WINDOW_TEXT_BOTTOM (w);
|
|
|
2009 #ifdef HAVE_SCROLLBARS
|
|
|
2010 /* This adjustment is to catch the intersection of any scrollbars. */
|
|
|
2011 if (f->windows_structure_changed && NILP (w->scrollbar_on_top_p))
|
|
|
2012 ypos2 += window_scrollbar_height (w);
|
|
|
2013 #endif
|
|
|
2014
|
|
|
2015 if (ddla_len)
|
|
|
2016 {
|
|
|
2017 if (ddla_len == 1 && Dynarr_atp (ddla, 0)->modeline)
|
|
|
2018 {
|
|
|
2019 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
2020 #ifdef HAVE_SCROLLBARS
|
|
|
2021 /* This adjustment is to catch the intersection of any scrollbars. */
|
|
|
2022 if (f->windows_structure_changed && !NILP (w->scrollbar_on_top_p))
|
|
|
2023 ypos1 -= window_scrollbar_height (w);
|
|
|
2024 #endif
|
|
|
2025 }
|
|
|
2026 else
|
|
|
2027 {
|
|
|
2028 struct display_line *dl = Dynarr_atp (ddla, ddla_len - 1);
|
|
|
2029 ypos1 = dl->ypos + dl->descent - dl->clip;
|
|
|
2030 }
|
|
|
2031 }
|
|
|
2032 else
|
|
|
2033 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
2034
|
|
|
2035 /* #### See if this can be made conditional on the frame
|
|
|
2036 changing size. */
|
|
|
2037 if (MINI_WINDOW_P (w))
|
|
|
2038 ypos2 += FRAME_BORDER_HEIGHT (f);
|
|
|
2039
|
|
|
2040 if (min_start >= 0 && ypos1 < min_start)
|
|
|
2041 ypos1 = min_start;
|
|
|
2042 if (max_end >= 0 && ypos2 > max_end)
|
|
|
2043 ypos2 = max_end;
|
|
|
2044
|
|
|
2045 if (ypos2 <= ypos1)
|
|
|
2046 return;
|
|
|
2047
|
|
|
2048 redisplay_clear_to_window_end (w, ypos1, ypos2);
|
|
|
2049 }
|
|
|
2050
|
|
|
2051 /*****************************************************************************
|
|
|
2052 redisplay_update_line
|
|
|
2053
|
|
|
2054 This is used during incremental updates to update a single line and
|
|
|
2055 correct the offsets on all lines below it. At the moment
|
|
|
2056 update_values is false if we are only updating the modeline.
|
|
|
2057 ****************************************************************************/
|
|
|
2058 void
|
|
|
2059 redisplay_update_line (struct window *w, int first_line, int last_line,
|
|
|
2060 int update_values)
|
|
|
2061 {
|
|
|
2062 struct frame *f = XFRAME (w->frame);
|
|
|
2063 struct device *d = XDEVICE (f->device);
|
|
|
2064
|
|
|
2065 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
2066 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
2067
|
|
442
|
2068 MAYBE_DEVMETH (d, window_output_begin, (w));
|
|
428
|
2069
|
|
|
2070 while (first_line <= last_line)
|
|
|
2071 {
|
|
|
2072 Charcount old_len = (Dynarr_atp (cdla, first_line)->end_bufpos -
|
|
|
2073 Dynarr_atp (cdla, first_line)->bufpos);
|
|
|
2074 Charcount new_len = (Dynarr_atp (ddla, first_line)->end_bufpos -
|
|
|
2075 Dynarr_atp (ddla, first_line)->bufpos);
|
|
|
2076
|
|
|
2077 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
|
|
|
2078
|
|
|
2079 /* Output the changes. */
|
|
|
2080 output_display_line (w, cdla, ddla, first_line, -1, -1);
|
|
|
2081
|
|
|
2082 /* Update the offsets. */
|
|
|
2083 if (update_values)
|
|
|
2084 {
|
|
|
2085 int cur_line = first_line + 1;
|
|
|
2086 while (cur_line < Dynarr_length (cdla))
|
|
|
2087 {
|
|
|
2088 Dynarr_atp (cdla, cur_line)->offset += (new_len - old_len);
|
|
|
2089 Dynarr_atp (ddla, cur_line)->offset += (new_len - old_len);
|
|
|
2090 cur_line++;
|
|
|
2091 }
|
|
|
2092 }
|
|
|
2093
|
|
|
2094 /* Update the window_end_pos and other settings. */
|
|
|
2095 if (update_values)
|
|
|
2096 {
|
|
|
2097 w->window_end_pos[CURRENT_DISP] -= (new_len - old_len);
|
|
|
2098
|
|
|
2099 if (Dynarr_atp (ddla, first_line)->cursor_elt != -1)
|
|
|
2100 {
|
|
|
2101 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP];
|
|
|
2102 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP];
|
|
|
2103 }
|
|
|
2104 }
|
|
|
2105
|
|
|
2106 first_line++;
|
|
|
2107 }
|
|
|
2108
|
|
|
2109 /* Update the window max line length. We have to scan the entire
|
|
|
2110 set of display lines otherwise we might not detect if the max is
|
|
|
2111 supposed to shrink. */
|
|
|
2112 if (update_values)
|
|
|
2113 {
|
|
|
2114 int line = 0;
|
|
|
2115
|
|
|
2116 w->max_line_len = 0;
|
|
|
2117 while (line < Dynarr_length (ddla))
|
|
|
2118 {
|
|
|
2119 struct display_line *dl = Dynarr_atp (ddla, line);
|
|
|
2120
|
|
|
2121 if (!dl->modeline)
|
|
|
2122 w->max_line_len = max (dl->num_chars, w->max_line_len);
|
|
|
2123
|
|
|
2124 line++;
|
|
|
2125 }
|
|
|
2126 }
|
|
|
2127
|
|
|
2128 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP];
|
|
|
2129 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP];
|
|
|
2130 Fset_marker (w->last_point[CURRENT_DISP],
|
|
|
2131 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer);
|
|
|
2132 Fset_marker (w->last_start[CURRENT_DISP],
|
|
|
2133 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer);
|
|
|
2134
|
|
|
2135 /* We don't bother updating the vertical scrollbars here. This
|
|
|
2136 gives us a performance increase while having minimal loss of
|
|
|
2137 quality to the scrollbar slider size and position since when this
|
|
|
2138 function is called we know that the changes to the buffer were
|
|
|
2139 very localized. We have to update the horizontal scrollbars,
|
|
|
2140 though, because this routine could cause a change which has a
|
|
|
2141 larger impact on their sizing. */
|
|
|
2142 /* #### See if we can get away with only calling this if
|
|
|
2143 max_line_len is greater than the window_char_width. */
|
|
|
2144 #if defined(HAVE_SCROLLBARS) && defined(HAVE_X_WINDOWS)
|
|
|
2145 {
|
|
|
2146 extern int stupid_vertical_scrollbar_drag_hack;
|
|
|
2147
|
|
|
2148 update_window_scrollbars (w, NULL, 1, stupid_vertical_scrollbar_drag_hack);
|
|
|
2149 stupid_vertical_scrollbar_drag_hack = 1;
|
|
|
2150 }
|
|
|
2151 #endif
|
|
|
2152
|
|
442
|
2153 redisplay_redraw_cursor (f, 0);
|
|
|
2154 MAYBE_DEVMETH (d, window_output_end, (w));
|
|
428
|
2155 }
|
|
|
2156
|
|
|
2157 /*****************************************************************************
|
|
|
2158 redisplay_output_window
|
|
|
2159
|
|
|
2160 For the given window W, ensure that the current display lines are
|
|
|
2161 equal to the desired display lines, outputing changes as necessary.
|
|
|
2162
|
|
|
2163 #### Fuck me. This just isn't going to cut it for tty's. The output
|
|
|
2164 decisions for them must be based on the contents of the entire frame
|
|
|
2165 because that is how the available output capabilities think. The
|
|
|
2166 solution is relatively simple. Create redisplay_output_frame. This
|
|
|
2167 will basically merge all of the separate window display structs into
|
|
|
2168 a single one for the frame. This combination structure will be able
|
|
|
2169 to be passed to the same output_display_line which works for windows
|
|
|
2170 on X frames and the right things will happen. It just takes time to
|
|
|
2171 do.
|
|
|
2172 ****************************************************************************/
|
|
|
2173 void
|
|
|
2174 redisplay_output_window (struct window *w)
|
|
|
2175 {
|
|
|
2176 struct frame *f = XFRAME (w->frame);
|
|
|
2177 struct device *d = XDEVICE (f->device);
|
|
|
2178
|
|
|
2179 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
2180 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
2181
|
|
|
2182 int cdla_len = Dynarr_length (cdla);
|
|
|
2183 int ddla_len = Dynarr_length (ddla);
|
|
|
2184
|
|
|
2185 int line;
|
|
|
2186 int need_to_clear_bottom = 0;
|
|
|
2187 int need_to_clear_start = -1;
|
|
|
2188 int need_to_clear_end = -1;
|
|
|
2189
|
|
|
2190 /* Backgrounds may have changed or windows may have gone away
|
|
|
2191 leaving dividers lying around. */
|
|
|
2192 if (f->faces_changed
|
|
|
2193 || f->windows_structure_changed
|
|
|
2194 || w->shadow_thickness_changed)
|
|
|
2195 need_to_clear_bottom = 1;
|
|
|
2196
|
|
|
2197 /* The first thing we do is determine if we are going to need to
|
|
|
2198 clear the bottom of the window. We only need to do this if the
|
|
|
2199 bottom of the current display lines is below the bottom of the
|
|
|
2200 desired display lines. Note that the number of lines is
|
|
|
2201 irrelevant. Only the position matters. We also clear to the
|
|
|
2202 bottom of the window if the modeline has shifted position. */
|
|
|
2203 /* #### We can't blindly not clear the bottom if f->clear is true
|
|
|
2204 since there might be a window-local background. However, for
|
|
|
2205 those cases where there isn't, clearing the end of the window in
|
|
|
2206 this case sucks. */
|
|
|
2207 if (!need_to_clear_bottom)
|
|
|
2208 {
|
|
|
2209 struct display_line *cdl, *ddl;
|
|
|
2210
|
|
|
2211 /* If the modeline has changed position or size, clear the bottom
|
|
|
2212 of the window. */
|
|
|
2213 if (!need_to_clear_bottom)
|
|
|
2214 {
|
|
|
2215 cdl = ddl = 0;
|
|
|
2216
|
|
|
2217 if (cdla_len)
|
|
|
2218 cdl = Dynarr_atp (cdla, 0);
|
|
|
2219 if (ddla_len)
|
|
|
2220 ddl = Dynarr_atp (ddla, 0);
|
|
|
2221
|
|
|
2222 if (!cdl || !ddl)
|
|
|
2223 need_to_clear_bottom = 1;
|
|
|
2224 else if ((!cdl->modeline && ddl->modeline)
|
|
|
2225 || (cdl->modeline && !ddl->modeline))
|
|
|
2226 need_to_clear_bottom = 1;
|
|
|
2227 else if (cdl->ypos != ddl->ypos ||
|
|
|
2228 cdl->ascent != ddl->ascent ||
|
|
|
2229 cdl->descent != ddl->descent ||
|
|
|
2230 cdl->clip != ddl->clip)
|
|
|
2231 need_to_clear_bottom = 1;
|
|
|
2232
|
|
|
2233 /* #### This kludge is to make sure the modeline shadows get
|
|
|
2234 redrawn if the modeline position shifts. */
|
|
|
2235 if (need_to_clear_bottom)
|
|
|
2236 w->shadow_thickness_changed = 1;
|
|
|
2237 }
|
|
|
2238
|
|
|
2239 if (!need_to_clear_bottom)
|
|
|
2240 {
|
|
|
2241 cdl = ddl = 0;
|
|
|
2242
|
|
|
2243 if (cdla_len)
|
|
|
2244 cdl = Dynarr_atp (cdla, cdla_len - 1);
|
|
|
2245 if (ddla_len)
|
|
|
2246 ddl = Dynarr_atp (ddla, ddla_len - 1);
|
|
|
2247
|
|
|
2248 if (!cdl || !ddl)
|
|
|
2249 need_to_clear_bottom = 1;
|
|
|
2250 else
|
|
|
2251 {
|
|
|
2252 int cdl_bottom, ddl_bottom;
|
|
|
2253
|
|
|
2254 cdl_bottom = cdl->ypos + cdl->descent;
|
|
|
2255 ddl_bottom = ddl->ypos + ddl->descent;
|
|
|
2256
|
|
|
2257 if (cdl_bottom > ddl_bottom)
|
|
|
2258 {
|
|
|
2259 need_to_clear_bottom = 1;
|
|
|
2260 need_to_clear_start = ddl_bottom;
|
|
|
2261 need_to_clear_end = cdl_bottom;
|
|
|
2262 }
|
|
|
2263 }
|
|
|
2264 }
|
|
|
2265 }
|
|
|
2266
|
|
|
2267 /* Perform any output initialization. */
|
|
442
|
2268 MAYBE_DEVMETH (d, window_output_begin, (w));
|
|
428
|
2269
|
|
|
2270 /* If the window's structure has changed clear the internal border
|
|
|
2271 above it if it is topmost (the function will check). */
|
|
|
2272 if (f->windows_structure_changed)
|
|
|
2273 redisplay_clear_top_of_window (w);
|
|
|
2274
|
|
|
2275 /* Output each line. */
|
|
|
2276 for (line = 0; line < Dynarr_length (ddla); line++)
|
|
|
2277 {
|
|
|
2278 output_display_line (w, cdla, ddla, line, -1, -1);
|
|
|
2279 }
|
|
|
2280
|
|
|
2281 /* If the number of display lines has shrunk, adjust. */
|
|
|
2282 if (cdla_len > ddla_len)
|
|
|
2283 {
|
|
|
2284 Dynarr_length (cdla) = ddla_len;
|
|
|
2285 }
|
|
|
2286
|
|
|
2287 /* Output a vertical divider between windows, if necessary. */
|
|
|
2288 if (window_needs_vertical_divider (w)
|
|
|
2289 && (f->windows_structure_changed || f->clear))
|
|
|
2290 {
|
|
442
|
2291 MAYBE_DEVMETH (d, output_vertical_divider, (w, f->windows_structure_changed));
|
|
428
|
2292 }
|
|
|
2293
|
|
|
2294 /* Clear the rest of the window, if necessary. */
|
|
|
2295 if (need_to_clear_bottom)
|
|
|
2296 {
|
|
|
2297 redisplay_clear_bottom_of_window (w, ddla, need_to_clear_start,
|
|
|
2298 need_to_clear_end);
|
|
|
2299 }
|
|
|
2300
|
|
|
2301 w->window_end_pos[CURRENT_DISP] = w->window_end_pos[DESIRED_DISP];
|
|
|
2302 Fset_marker (w->start[CURRENT_DISP],
|
|
|
2303 make_int (marker_position (w->start[DESIRED_DISP])),
|
|
|
2304 w->buffer);
|
|
|
2305 Fset_marker (w->pointm[CURRENT_DISP],
|
|
|
2306 make_int (marker_position (w->pointm[DESIRED_DISP])),
|
|
|
2307 w->buffer);
|
|
|
2308 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP];
|
|
|
2309 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP];
|
|
|
2310 Fset_marker (w->last_start[CURRENT_DISP],
|
|
|
2311 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer);
|
|
|
2312 Fset_marker (w->last_point[CURRENT_DISP],
|
|
|
2313 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer);
|
|
|
2314 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP];
|
|
|
2315 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP];
|
|
|
2316 w->shadow_thickness_changed = 0;
|
|
|
2317
|
|
|
2318 set_window_display_buffer (w, XBUFFER (w->buffer));
|
|
|
2319 find_window_mirror (w)->truncate_win = window_truncation_on (w);
|
|
|
2320
|
|
|
2321 /* Overkill on invalidating the cache. It is very bad for it to not
|
|
|
2322 get invalidated when it should be. */
|
|
|
2323 INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE (d);
|
|
|
2324
|
|
442
|
2325 redisplay_redraw_cursor (f, 0);
|
|
|
2326 MAYBE_DEVMETH (d, window_output_end, (w));
|
|
428
|
2327
|
|
|
2328 #ifdef HAVE_SCROLLBARS
|
|
|
2329 update_window_scrollbars (w, NULL, !MINI_WINDOW_P (w), 0);
|
|
|
2330 #endif
|
|
|
2331 }
|
|
|
2332
|
|
|
2333 /*****************************************************************************
|
|
|
2334 bevel_modeline
|
|
|
2335
|
|
|
2336 Draw a 3d border around the modeline on window W.
|
|
|
2337 ****************************************************************************/
|
|
|
2338 void
|
|
|
2339 bevel_modeline (struct window *w, struct display_line *dl)
|
|
|
2340 {
|
|
|
2341 struct frame *f = XFRAME (w->frame);
|
|
|
2342 struct device *d = XDEVICE (f->device);
|
|
|
2343 int x, y, width, height;
|
|
|
2344 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w);
|
|
|
2345 enum edge_style style;
|
|
|
2346
|
|
|
2347 x = WINDOW_MODELINE_LEFT (w);
|
|
|
2348 width = WINDOW_MODELINE_RIGHT (w) - x;
|
|
|
2349 y = dl->ypos - dl->ascent - shadow_thickness;
|
|
|
2350 height = dl->ascent + dl->descent + 2 * shadow_thickness;
|
|
|
2351
|
|
|
2352 if (XINT (w->modeline_shadow_thickness) < 0)
|
|
|
2353 {
|
|
|
2354 style = EDGE_BEVEL_IN;
|
|
|
2355 }
|
|
|
2356 else
|
|
|
2357 {
|
|
|
2358 style = EDGE_BEVEL_OUT;
|
|
|
2359 }
|
|
|
2360
|
|
434
|
2361 MAYBE_DEVMETH (d, bevel_area,
|
|
428
|
2362 (w, MODELINE_INDEX, x, y, width, height, shadow_thickness,
|
|
|
2363 EDGE_ALL, style));
|
|
|
2364 }
|
