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