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0
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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
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Not in FSF. */
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24
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25 /* This file has been Mule-ized. */
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26
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27 /* Author: Chuck Thompson */
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28
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29 #include <config.h>
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30 #include "lisp.h"
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31
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32 #include "buffer.h"
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33 #include "window.h"
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34 #include "frame.h"
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35 #include "device.h"
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36 #include "glyphs.h"
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37 #include "redisplay.h"
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38 #include "faces.h"
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39
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40 static int compare_runes (struct window *w, struct rune *crb,
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41 struct rune *drb);
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42 static void redraw_cursor_in_window (struct window *w,
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43 int run_end_begin_glyphs);
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388
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44 static void redisplay_output_display_block (struct window *w, struct display_line *dl,
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45 int block, int start, int end, int start_pixpos,
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46 int cursor_start, int cursor_width,
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47 int cursor_height);
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0
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48
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49 /*****************************************************************************
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50 sync_rune_structs
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51
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52 Synchronize the given rune blocks.
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53 ****************************************************************************/
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54 static void
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55 sync_rune_structs (struct window *w, rune_dynarr *cra, rune_dynarr *dra)
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56 {
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57 int rune_elt;
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58 int max_move = ((Dynarr_length (dra) > Dynarr_largest (cra))
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59 ? Dynarr_largest (cra)
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60 : Dynarr_length (dra));
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61
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62 if (max_move)
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63 {
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64 /* #### Doing this directly breaks the encapsulation. But, the
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65 running time of this function has a measurable impact on
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66 redisplay performance so avoiding all excess overhead is a
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67 good thing. Is all of this true? */
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68 memcpy (cra->base, dra->base, sizeof (struct rune) * max_move);
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69 Dynarr_set_size (cra, max_move);
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70 }
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71 else
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72 Dynarr_reset (cra);
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73
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74 for (rune_elt = max_move; rune_elt < Dynarr_length (dra); rune_elt++)
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75 {
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76 struct rune rb, *crb;
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77 struct rune *drb = Dynarr_atp (dra, rune_elt);
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78
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79 crb = &rb;
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80 memcpy (crb, drb, sizeof (struct rune));
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81 Dynarr_add (cra, *crb);
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82 }
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83 }
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84
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85 /*****************************************************************************
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86 sync_display_line_structs
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87
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88 For the given LINE in window W, make the current display line equal
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89 the desired display line.
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90 ****************************************************************************/
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91 static void
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92 sync_display_line_structs (struct window *w, int line, int do_blocks,
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93 display_line_dynarr *cdla,
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94 display_line_dynarr *ddla)
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95 {
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96 int cdla_len = Dynarr_length (cdla);
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97
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98 struct display_line dl, *clp, *dlp;
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99 int db_elt;
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100
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101 dlp = Dynarr_atp (ddla, line);
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102 if (line >= Dynarr_largest (cdla))
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103 {
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104 clp = &dl;
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185
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105 clp->display_blocks = Dynarr_new (display_block);
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0
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106 }
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107 else
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108 {
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109 clp = Dynarr_atp (cdla, line);
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110 if (clp->display_blocks)
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111 Dynarr_reset (clp->display_blocks);
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112 if (clp->left_glyphs)
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113 {
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114 Dynarr_free (clp->left_glyphs);
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115 clp->left_glyphs = 0;
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116 }
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117 if (clp->right_glyphs)
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118 {
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119 Dynarr_free (clp->right_glyphs);
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120 clp->right_glyphs = 0;
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121 }
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122 }
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123 {
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124 display_block_dynarr *tdb = clp->display_blocks;
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125
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126 memcpy (clp, dlp, sizeof (struct display_line));
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127 clp->display_blocks = tdb;
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128 clp->left_glyphs = 0;
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129 clp->right_glyphs = 0;
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130 }
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131
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132 if (!do_blocks && line >= cdla_len)
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133 {
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134 Dynarr_add (cdla, *clp);
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135 return;
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136 }
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137
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138 for (db_elt = 0; db_elt < Dynarr_length (dlp->display_blocks); db_elt++)
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139 {
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140 struct display_block db, *cdb;
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141 struct display_block *ddb = Dynarr_atp (dlp->display_blocks, db_elt);
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142
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143 if (db_elt >= Dynarr_largest (clp->display_blocks))
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144 {
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145 cdb = &db;
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146 memcpy (cdb, ddb, sizeof (struct display_block));
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185
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147 cdb->runes = Dynarr_new (rune);
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0
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148 Dynarr_add (clp->display_blocks, *cdb);
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149 }
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150 else
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151 {
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152 rune_dynarr *tr;
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153
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154 cdb = Dynarr_atp (clp->display_blocks, db_elt);
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155 tr = cdb->runes;
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156 memcpy (cdb, ddb, sizeof (struct display_block));
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157 cdb->runes = tr;
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158 Dynarr_increment (clp->display_blocks);
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159 }
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160
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161 sync_rune_structs (w, cdb->runes, ddb->runes);
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162 }
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163
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164 if (line >= cdla_len)
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165 Dynarr_add (cdla, *clp);
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166 }
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167
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168 /*****************************************************************************
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169 compare_runes
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170
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171 Compare to runes to see if each of their fields is equal. If so,
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172 return true otherwise return false.
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173 ****************************************************************************/
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174 static int
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175 compare_runes (struct window *w, struct rune *crb, struct rune *drb)
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176 {
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177 /* Do not compare the values of bufpos and endpos. They do not
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178 affect the display characteristics. */
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179
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180 if ((crb->findex != drb->findex) ||
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181 (WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)))
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182 return 0;
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183 else if (crb->xpos != drb->xpos)
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184 return 0;
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185 else if (crb->width != drb->width)
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186 return 0;
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187 else if (crb->cursor_type != drb->cursor_type)
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188 return 0;
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189 else if (crb->type != drb->type)
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190 return 0;
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191 else if (crb->type == RUNE_CHAR &&
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192 (crb->object.chr.ch != drb->object.chr.ch))
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193 return 0;
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194 else if (crb->type == RUNE_DGLYPH &&
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195 (!EQ (crb->object.dglyph.glyph, drb->object.dglyph.glyph) ||
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196 !EQ (crb->object.dglyph.extent, drb->object.dglyph.extent) ||
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197 crb->object.dglyph.xoffset != drb->object.dglyph.xoffset))
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198 return 0;
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199 else if (crb->type == RUNE_HLINE &&
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200 (crb->object.hline.thickness != drb->object.hline.thickness ||
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201 crb->object.hline.yoffset != drb->object.hline.yoffset))
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202 return 0;
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203 else
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204 return 1;
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205 }
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206
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207 /*****************************************************************************
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208 get_next_display_block
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209
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210 Return the next display starting at or overlapping START_POS. Return
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211 the start of the next region in NEXT_START.
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212 ****************************************************************************/
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213 int
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214 get_next_display_block (layout_bounds bounds, display_block_dynarr *dba,
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215 int start_pos, int *next_start)
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216 {
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217 int next_display_block = NO_BLOCK;
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218 int priority = -1;
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219 int block;
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220
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221 /* If we don't find a display block covering or starting at
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222 start_pos, then we return the starting point of the next display
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223 block or the next division boundary, whichever is closer to
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224 start_pos. */
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225 if (next_start)
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226 {
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227 if (start_pos >= bounds.left_out && start_pos < bounds.left_in)
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228 *next_start = bounds.left_in;
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229 else if (start_pos < bounds.left_white)
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230 *next_start = bounds.left_white;
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231 else if (start_pos < bounds.right_white)
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232 *next_start = bounds.right_white;
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233 else if (start_pos < bounds.right_in)
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234 *next_start = bounds.right_in;
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235 else if (start_pos <= bounds.right_out)
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236 *next_start = bounds.right_out;
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237 else
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238 abort ();
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239 }
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240
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241 for (block = 0; block < Dynarr_length (dba); block++)
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242 {
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243 struct display_block *db = Dynarr_atp (dba, block);
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244
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245 if (db->start_pos <= start_pos && db->end_pos > start_pos)
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246 {
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247 if ((int) db->type > priority)
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248 {
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249 priority = db->type;
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250 next_display_block = block;
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251 if (next_start)
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252 *next_start = db->end_pos;
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253 }
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254 }
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255 else if (next_start && db->start_pos > start_pos)
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256 {
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257 if (db->start_pos < *next_start)
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258 *next_start = db->start_pos;
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259 }
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260 }
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261
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262 return next_display_block;
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263 }
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264
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265 /*****************************************************************************
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266 get_cursor_size_and_location
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267
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268 Return the information defining the pixel location of the cursor.
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269 ****************************************************************************/
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270 static void
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271 get_cursor_size_and_location (struct window *w, struct display_block *db,
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272 int cursor_location,
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273 int *cursor_start, int *cursor_width,
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274 int *cursor_height)
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275 {
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276 struct rune *rb;
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272
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277 Lisp_Object window;
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0
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278 int defheight, defwidth;
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279
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280 if (Dynarr_length (db->runes) <= cursor_location)
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281 abort ();
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282
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283 XSETWINDOW (window, w);
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284
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285 rb = Dynarr_atp (db->runes, cursor_location);
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286 *cursor_start = rb->xpos;
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287
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288 default_face_height_and_width (window, &defheight, &defwidth);
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289 *cursor_height = defheight;
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290
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291 if (rb->type == RUNE_BLANK)
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292 *cursor_width = defwidth;
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293 else
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294 *cursor_width = rb->width;
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295 }
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296
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297 /*****************************************************************************
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298 compare_display_blocks
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299
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300 Given two display blocks, output only those areas where they differ.
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301 ****************************************************************************/
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302 static int
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303 compare_display_blocks (struct window *w, struct display_line *cdl,
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304 struct display_line *ddl, int c_block, int d_block,
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305 int start_pixpos, int cursor_start, int cursor_width,
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306 int cursor_height)
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307 {
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308 struct frame *f = XFRAME (w->frame);
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309 struct display_block *cdb, *ddb;
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310 int start_pos;
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311 int stop_pos;
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312 int force = 0;
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313 int block_end;
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314
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315 cdb = Dynarr_atp (cdl->display_blocks, c_block);
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316 ddb = Dynarr_atp (ddl->display_blocks, d_block);
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317
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318 assert (cdb->type == ddb->type);
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319
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320 start_pos = -1;
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321 stop_pos = min (Dynarr_length (cdb->runes), Dynarr_length (ddb->runes));
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322
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323 block_end =
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324 (!Dynarr_length (ddb->runes)
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325 ? 0
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326 : (Dynarr_atp (ddb->runes, Dynarr_length (ddb->runes) - 1)->xpos +
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327 Dynarr_atp (ddb->runes, Dynarr_length (ddb->runes) - 1)->width));
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328
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329 /* If the new block type is not text and the cursor status is
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330 changing and it overlaps the position of this block then force a
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331 full redraw of the block in order to make sure that the cursor is
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332 updated properly. */
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333 if (ddb->type != TEXT
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116
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334 #if 0
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335 /* I'm not sure exactly what this code wants to do, but it's
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336 * not right--it doesn't update when cursor_elt changes from, e.g.,
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337 * 0 to 8, and the new or old cursor loc overlaps this block.
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338 * I've replaced it with the more conservative test below.
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339 * -dkindred@cs.cmu.edu 23-Mar-1997 */
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0
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340 && ((cdl->cursor_elt == -1 && ddl->cursor_elt != -1)
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341 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1))
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342 && (ddl->cursor_elt == -1 ||
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343 (cursor_start
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344 && cursor_width
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345 && (cursor_start + cursor_width) >= start_pixpos
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116
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346 && cursor_start <= block_end))
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347 #else
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348 && (cdl->cursor_elt != ddl->cursor_elt)
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349 #endif
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350 )
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0
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351 force = 1;
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352
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353 if (f->windows_structure_changed ||
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354 f->faces_changed ||
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269
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355 f->glyphs_changed ||
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0
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356 cdl->ypos != ddl->ypos ||
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357 cdl->ascent != ddl->ascent ||
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358 cdl->descent != ddl->descent ||
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359 cdl->clip != ddl->clip ||
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360 force)
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361 {
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362 start_pos = 0;
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363 force = 1;
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364 }
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365 else
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366 {
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367 int elt = 0;
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368
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369 while (start_pos < 0 && elt < stop_pos)
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370 {
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371 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt),
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372 Dynarr_atp (ddb->runes, elt)))
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373 {
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374 start_pos = elt;
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375 }
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376 else
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377 {
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378 elt++;
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379 }
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380 }
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381
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382 /* If nothing has changed in the area where the blocks overlap, but
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383 there are new blocks in the desired block, then adjust the start
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384 point accordingly. */
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385 if (elt == stop_pos && stop_pos < Dynarr_length (ddb->runes))
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386 start_pos = stop_pos;
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387 }
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388
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389 if (start_pos >= 0)
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390 {
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391 if ((Dynarr_length (ddb->runes) != Dynarr_length (cdb->runes))
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392 || force)
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393 {
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394 stop_pos = Dynarr_length (ddb->runes);
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395 }
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396 else
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397 {
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398 /* If the lines have the same number of runes and we are not
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399 forcing a full redraw because the display line has
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400 changed position then we try and optimize how much of the
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401 line we actually redraw by scanning backwards from the
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402 end for the first changed rune. This optimization is
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403 almost always triggered by face changes. */
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404
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405 int elt = Dynarr_length (ddb->runes) - 1;
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406
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407 while (elt > start_pos)
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408 {
|
|
|
409 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt),
|
|
|
410 Dynarr_atp (ddb->runes, elt)))
|
|
|
411 break;
|
|
|
412 else
|
|
|
413 elt--;
|
|
|
414 }
|
|
|
415 stop_pos = elt + 1;
|
|
|
416 }
|
|
|
417
|
|
388
|
418 redisplay_output_display_block (w, ddl, d_block, start_pos,
|
|
|
419 stop_pos, start_pixpos,
|
|
|
420 cursor_start, cursor_width,
|
|
|
421 cursor_height);
|
|
0
|
422 return 1;
|
|
|
423 }
|
|
|
424
|
|
|
425 return 0;
|
|
|
426 }
|
|
|
427
|
|
|
428 /*****************************************************************************
|
|
|
429 clear_left_border
|
|
|
430
|
|
|
431 Clear the lefthand outside border.
|
|
|
432 ****************************************************************************/
|
|
|
433 static void
|
|
|
434 clear_left_border (struct window *w, int y, int height)
|
|
|
435 {
|
|
|
436 struct frame *f = XFRAME (w->frame);
|
|
|
437 Lisp_Object window;
|
|
|
438
|
|
|
439 XSETWINDOW (window, w);
|
|
384
|
440 redisplay_clear_region (window, DEFAULT_INDEX,
|
|
|
441 FRAME_LEFT_BORDER_START (f), y,
|
|
|
442 FRAME_BORDER_WIDTH (f), height);
|
|
0
|
443 }
|
|
|
444
|
|
|
445 /*****************************************************************************
|
|
|
446 clear_right_border
|
|
|
447
|
|
|
448 Clear the righthand outside border.
|
|
|
449 ****************************************************************************/
|
|
|
450 static void
|
|
|
451 clear_right_border (struct window *w, int y, int height)
|
|
|
452 {
|
|
|
453 struct frame *f = XFRAME (w->frame);
|
|
|
454 Lisp_Object window;
|
|
|
455
|
|
|
456 XSETWINDOW (window, w);
|
|
384
|
457 redisplay_clear_region (window, DEFAULT_INDEX,
|
|
|
458 FRAME_RIGHT_BORDER_START (f),
|
|
|
459 y, FRAME_BORDER_WIDTH (f), height);
|
|
0
|
460 }
|
|
|
461
|
|
|
462 /*****************************************************************************
|
|
|
463 output_display_line
|
|
|
464
|
|
|
465 Ensure that the contents of the given display line is correct
|
|
|
466 on-screen. The force_ parameters are used by redisplay_move_cursor
|
|
|
467 to correctly update cursor locations and only cursor locations.
|
|
|
468 ****************************************************************************/
|
|
|
469 void
|
|
|
470 output_display_line (struct window *w, display_line_dynarr *cdla,
|
|
|
471 display_line_dynarr *ddla, int line, int force_start,
|
|
|
472 int force_end)
|
|
|
473
|
|
|
474 {
|
|
|
475 struct frame *f = XFRAME (w->frame);
|
|
|
476 struct buffer *b = XBUFFER (w->buffer);
|
|
|
477 struct buffer *old_b = window_display_buffer (w);
|
|
|
478 struct display_line *cdl, *ddl;
|
|
|
479 display_block_dynarr *cdba, *ddba;
|
|
|
480 int start_pixpos, end_pixpos;
|
|
|
481 int cursor_start, cursor_width, cursor_height;
|
|
|
482
|
|
|
483 int force = (force_start >= 0 || force_end >= 0);
|
|
|
484 int clear_border = 0;
|
|
|
485 int must_sync = 0;
|
|
|
486
|
|
|
487 if (cdla && line < Dynarr_length (cdla))
|
|
|
488 {
|
|
|
489 cdl = Dynarr_atp (cdla, line);
|
|
|
490 cdba = cdl->display_blocks;
|
|
|
491 }
|
|
|
492 else
|
|
|
493 {
|
|
|
494 cdl = NULL;
|
|
|
495 cdba = NULL;
|
|
|
496 }
|
|
|
497
|
|
|
498 ddl = Dynarr_atp (ddla, line); /* assert line < Dynarr_length (ddla) */
|
|
|
499 ddba = ddl->display_blocks;
|
|
|
500
|
|
|
501 if (force_start >= 0 && force_start >= ddl->bounds.left_out)
|
|
|
502 start_pixpos = force_start;
|
|
|
503 else
|
|
|
504 start_pixpos = ddl->bounds.left_out;
|
|
|
505
|
|
|
506 if (force_end >= 0 && force_end < ddl->bounds.right_out)
|
|
|
507 end_pixpos = force_end;
|
|
|
508 else
|
|
|
509 end_pixpos = ddl->bounds.right_out;
|
|
|
510
|
|
|
511 /* Get the cursor parameters. */
|
|
|
512 if (ddl->cursor_elt != -1)
|
|
|
513 {
|
|
|
514 struct display_block *db;
|
|
|
515
|
|
|
516 /* If the lines cursor parameter is not -1 then it indicates
|
|
|
517 which rune in the TEXT block contains the cursor. This means
|
|
|
518 that there must be at least one display block. The TEXT
|
|
|
519 block, if present, must always be the first display block. */
|
|
|
520 assert (Dynarr_length (ddba) != 0);
|
|
|
521
|
|
|
522 db = Dynarr_atp (ddba, 0);
|
|
|
523 assert (db->type == TEXT);
|
|
|
524
|
|
|
525 get_cursor_size_and_location (w, db, ddl->cursor_elt, &cursor_start,
|
|
|
526 &cursor_width, &cursor_height);
|
|
|
527 }
|
|
|
528 else
|
|
|
529 {
|
|
|
530 cursor_start = cursor_width = cursor_height = 0;
|
|
|
531 }
|
|
|
532
|
|
|
533 /* The modeline should only have a single block and it had better be
|
|
|
534 a TEXT block. */
|
|
|
535 if (ddl->modeline)
|
|
|
536 {
|
|
380
|
537 /* The shadow thickness check is necessary if only the sign of
|
|
0
|
538 the size changed. */
|
|
|
539 if (cdba && !w->shadow_thickness_changed)
|
|
|
540 {
|
|
|
541 must_sync |= compare_display_blocks (w, cdl, ddl, 0, 0,
|
|
|
542 start_pixpos, 0, 0, 0);
|
|
|
543 }
|
|
|
544 else
|
|
|
545 {
|
|
388
|
546 redisplay_output_display_block (w, ddl, 0, 0, -1, start_pixpos,
|
|
|
547 0, 0, 0);
|
|
0
|
548 must_sync = 1;
|
|
|
549 }
|
|
|
550
|
|
|
551 if (must_sync)
|
|
|
552 clear_border = 1;
|
|
|
553 }
|
|
|
554
|
|
|
555 while (!ddl->modeline && start_pixpos < end_pixpos)
|
|
|
556 {
|
|
|
557 int block;
|
|
|
558 int next_start_pixpos;
|
|
|
559
|
|
|
560 block = get_next_display_block (ddl->bounds, ddba, start_pixpos,
|
|
|
561 &next_start_pixpos);
|
|
|
562
|
|
|
563 /* If we didn't find a block then we should blank the area
|
|
|
564 between start_pos and next_start if necessary. */
|
|
|
565 if (block == NO_BLOCK)
|
|
|
566 {
|
|
|
567 /* We only erase those areas which were actually previously
|
|
|
568 covered by a display block unless the window structure
|
|
|
569 changed. In that case we clear all areas since the current
|
|
|
570 structures may actually represent a different buffer. */
|
|
|
571 while (start_pixpos < next_start_pixpos)
|
|
|
572 {
|
|
|
573 int block_end;
|
|
|
574 int old_block;
|
|
|
575
|
|
|
576 if (cdba)
|
|
|
577 old_block = get_next_display_block (ddl->bounds, cdba,
|
|
|
578 start_pixpos, &block_end);
|
|
|
579 else
|
|
|
580 {
|
|
|
581 old_block = NO_BLOCK;
|
|
|
582 block_end = next_start_pixpos;
|
|
|
583 }
|
|
|
584
|
|
|
585 if (!cdba || old_block != NO_BLOCK || b != old_b ||
|
|
|
586 f->windows_structure_changed ||
|
|
|
587 f->faces_changed ||
|
|
|
588 force ||
|
|
|
589 (cdl && (cdl->ypos != ddl->ypos ||
|
|
|
590 cdl->ascent != ddl->ascent ||
|
|
|
591 cdl->descent != ddl->descent ||
|
|
|
592 cdl->clip != ddl->clip)))
|
|
|
593 {
|
|
|
594 int x, y, width, height;
|
|
|
595 Lisp_Object face;
|
|
|
596
|
|
|
597 must_sync = 1;
|
|
|
598 x = start_pixpos;
|
|
|
599 y = ddl->ypos - ddl->ascent;
|
|
|
600 width = min (next_start_pixpos, block_end) - x;
|
|
|
601 height = ddl->ascent + ddl->descent - ddl->clip;
|
|
|
602
|
|
|
603 if (x < ddl->bounds.left_in)
|
|
|
604 face = Vleft_margin_face;
|
|
|
605 else if (x < ddl->bounds.right_in)
|
|
|
606 face = Vdefault_face;
|
|
|
607 else if (x < ddl->bounds.right_out)
|
|
|
608 face = Vright_margin_face;
|
|
|
609 else
|
|
|
610 face = Qnil;
|
|
|
611
|
|
|
612 if (!NILP (face))
|
|
|
613 {
|
|
|
614 Lisp_Object window;
|
|
|
615
|
|
|
616 XSETWINDOW (window, w);
|
|
|
617
|
|
|
618 /* Clear the empty area. */
|
|
384
|
619 redisplay_clear_region (window, get_builtin_face_cache_index (w, face),
|
|
|
620 x, y, width, height);
|
|
0
|
621
|
|
|
622 /* Mark that we should clear the border. This is
|
|
|
623 necessary because italic fonts may leave
|
|
|
624 droppings in the border. */
|
|
|
625 clear_border = 1;
|
|
|
626 }
|
|
|
627 }
|
|
|
628
|
|
|
629 start_pixpos = min (next_start_pixpos, block_end);
|
|
|
630 }
|
|
|
631 }
|
|
|
632 else
|
|
|
633 {
|
|
|
634 struct display_block *cdb, *ddb;
|
|
|
635 int block_end;
|
|
|
636 int old_block;
|
|
|
637
|
|
|
638 if (cdba)
|
|
|
639 old_block = get_next_display_block (ddl->bounds, cdba,
|
|
|
640 start_pixpos, &block_end);
|
|
|
641 else
|
|
|
642 old_block = NO_BLOCK;
|
|
|
643
|
|
|
644 ddb = Dynarr_atp (ddba, block);
|
|
|
645 cdb = (old_block != NO_BLOCK ? Dynarr_atp (cdba, old_block) : 0);
|
|
|
646
|
|
|
647 /* If there was formerly no block over the current
|
|
|
648 region or if it was a block of a different type, then
|
|
|
649 output the entire ddb. Otherwise, compare cdb and
|
|
|
650 ddb and output only the changed region. */
|
|
|
651 if (!force && cdb && ddb->type == cdb->type && b == old_b)
|
|
|
652 {
|
|
|
653 must_sync |= compare_display_blocks (w, cdl, ddl, old_block,
|
|
|
654 block, start_pixpos,
|
|
|
655 cursor_start, cursor_width,
|
|
|
656 cursor_height);
|
|
|
657 }
|
|
|
658 else
|
|
|
659 {
|
|
|
660 int elt;
|
|
|
661 int first_elt = 0;
|
|
|
662 int last_elt = -1;
|
|
|
663
|
|
|
664 for (elt = 0; elt < Dynarr_length (ddb->runes); elt++)
|
|
|
665 {
|
|
|
666 struct rune *rb = Dynarr_atp (ddb->runes, elt);
|
|
|
667
|
|
|
668 if (start_pixpos >= rb->xpos
|
|
|
669 && start_pixpos < rb->xpos + rb->width)
|
|
|
670 first_elt = elt;
|
|
|
671
|
|
|
672 if (end_pixpos > rb->xpos
|
|
|
673 && end_pixpos <= rb->xpos + rb->width)
|
|
|
674 {
|
|
|
675 last_elt = elt + 1;
|
|
|
676 if (last_elt > Dynarr_length (ddb->runes))
|
|
|
677 last_elt = Dynarr_length (ddb->runes);
|
|
|
678 break;
|
|
|
679 }
|
|
|
680 }
|
|
|
681
|
|
|
682 must_sync = 1;
|
|
388
|
683 redisplay_output_display_block (w, ddl, block, first_elt,
|
|
|
684 last_elt,
|
|
|
685 start_pixpos,
|
|
|
686 cursor_start, cursor_width,
|
|
|
687 cursor_height);
|
|
0
|
688 }
|
|
388
|
689
|
|
0
|
690 start_pixpos = next_start_pixpos;
|
|
|
691 }
|
|
|
692 }
|
|
|
693
|
|
|
694 /* Clear the internal border if we are next to it and the window
|
|
|
695 structure or frame size has changed or if something caused
|
|
|
696 clear_border to be tripped. */
|
|
|
697 /* #### Doing this on f->clear sucks but is necessary because of
|
|
|
698 window-local background values. */
|
|
|
699 if (f->windows_structure_changed || f->faces_changed || clear_border
|
|
|
700 || f->clear)
|
|
|
701 {
|
|
|
702 int y = ddl->ypos - ddl->ascent;
|
|
|
703 int height = ddl->ascent + ddl->descent - ddl->clip;
|
|
|
704
|
|
|
705 if (ddl->modeline)
|
|
|
706 {
|
|
|
707 y -= MODELINE_SHADOW_THICKNESS (w);
|
|
|
708 height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
709 }
|
|
|
710
|
|
|
711 if (window_is_leftmost (w))
|
|
|
712 clear_left_border (w, y, height);
|
|
|
713 if (window_is_rightmost (w))
|
|
|
714 clear_right_border (w, y, height);
|
|
|
715 }
|
|
|
716
|
|
|
717 if (cdla)
|
|
|
718 sync_display_line_structs (w, line, must_sync, cdla, ddla);
|
|
|
719 }
|
|
|
720
|
|
|
721 /*****************************************************************************
|
|
|
722 redisplay_move_cursor
|
|
|
723
|
|
|
724 For the given window W, move the cursor to NEW_POINT. Returns a
|
|
|
725 boolean indicating success or failure.
|
|
|
726 ****************************************************************************/
|
|
|
727
|
|
|
728 #define ADJ_BUFPOS (rb->bufpos + dl->offset)
|
|
|
729 #define ADJ_ENDPOS (rb->endpos + dl->offset)
|
|
|
730
|
|
|
731 int
|
|
|
732 redisplay_move_cursor (struct window *w, Bufpos new_point, int no_output_end)
|
|
|
733 {
|
|
|
734 struct frame *f = XFRAME (w->frame);
|
|
|
735 struct device *d = XDEVICE (f->device);
|
|
|
736
|
|
|
737 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP);
|
|
|
738 struct display_line *dl;
|
|
|
739 struct display_block *db;
|
|
|
740 struct rune *rb;
|
|
|
741 int x = w->last_point_x[CURRENT_DISP];
|
|
|
742 int y = w->last_point_y[CURRENT_DISP];
|
|
|
743
|
|
263
|
744 /*
|
|
265
|
745 * Bail if cursor_in_echo_area is non-zero and we're fiddling with
|
|
|
746 * the cursor in a non-active minibuffer window, since that is a
|
|
|
747 * special case that is handled elsewhere and this function need
|
|
|
748 * not handle it. Return 1 so the caller will assume we
|
|
263
|
749 * succeeded.
|
|
|
750 */
|
|
265
|
751 if (cursor_in_echo_area && MINI_WINDOW_P (w) &&
|
|
|
752 w != XWINDOW (FRAME_SELECTED_WINDOW (f)))
|
|
263
|
753 return 1;
|
|
|
754
|
|
0
|
755 if (y < 0 || y >= Dynarr_length (cla))
|
|
|
756 return 0;
|
|
|
757
|
|
|
758 dl = Dynarr_atp (cla, y);
|
|
|
759 db = get_display_block_from_line (dl, TEXT);
|
|
|
760
|
|
|
761 if (x < 0 || x >= Dynarr_length (db->runes))
|
|
|
762 return 0;
|
|
|
763
|
|
|
764 rb = Dynarr_atp (db->runes, x);
|
|
|
765
|
|
|
766 if (rb->cursor_type == CURSOR_OFF)
|
|
|
767 return 0;
|
|
|
768 else if (ADJ_BUFPOS == new_point
|
|
|
769 || (ADJ_ENDPOS && (new_point >= ADJ_BUFPOS)
|
|
|
770 && (new_point <= ADJ_ENDPOS)))
|
|
|
771 {
|
|
|
772 w->last_point_x[CURRENT_DISP] = x;
|
|
|
773 w->last_point_y[CURRENT_DISP] = y;
|
|
|
774 Fset_marker (w->last_point[CURRENT_DISP], make_int (ADJ_BUFPOS),
|
|
|
775 w->buffer);
|
|
|
776 dl->cursor_elt = x;
|
|
|
777 return 1;
|
|
|
778 }
|
|
|
779 else
|
|
|
780 {
|
|
|
781 DEVMETH (d, output_begin, (d));
|
|
|
782
|
|
|
783 /* #### This is a gross kludge. Cursor handling is such a royal
|
|
|
784 pain in the ass. */
|
|
|
785 if (rb->type == RUNE_DGLYPH &&
|
|
|
786 (EQ (rb->object.dglyph.glyph, Vtruncation_glyph) ||
|
|
|
787 EQ (rb->object.dglyph.glyph, Vcontinuation_glyph)))
|
|
|
788 rb->cursor_type = NO_CURSOR;
|
|
|
789 else
|
|
|
790 rb->cursor_type = CURSOR_OFF;
|
|
|
791 dl->cursor_elt = -1;
|
|
|
792 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width);
|
|
|
793 }
|
|
|
794
|
|
|
795 w->last_point_x[CURRENT_DISP] = -1;
|
|
|
796 w->last_point_y[CURRENT_DISP] = -1;
|
|
|
797 Fset_marker (w->last_point[CURRENT_DISP], Qnil, w->buffer);
|
|
|
798
|
|
|
799 /* If this isn't the selected frame, then erasing the old cursor is
|
|
|
800 all we actually had to do. */
|
|
|
801 if (w != XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame (d))))
|
|
|
802 {
|
|
|
803 if (!no_output_end)
|
|
|
804 DEVMETH (d, output_end, (d));
|
|
|
805
|
|
|
806 return 1;
|
|
|
807 }
|
|
|
808
|
|
|
809 /* This should only occur in the minibuffer. */
|
|
|
810 if (new_point == 0)
|
|
|
811 {
|
|
|
812 w->last_point_x[CURRENT_DISP] = 0;
|
|
|
813 w->last_point_y[CURRENT_DISP] = y;
|
|
|
814 Fset_marker (w->last_point[CURRENT_DISP], Qzero, w->buffer);
|
|
|
815
|
|
|
816 rb = Dynarr_atp (db->runes, 0);
|
|
|
817 rb->cursor_type = CURSOR_ON;
|
|
|
818 dl->cursor_elt = 0;
|
|
|
819
|
|
|
820 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width);
|
|
|
821
|
|
|
822 if (!no_output_end)
|
|
|
823 DEVMETH (d, output_end, (d));
|
|
|
824 return 1;
|
|
|
825 }
|
|
|
826 else
|
|
|
827 {
|
|
|
828 int cur_rb = 0;
|
|
|
829 int first = 0;
|
|
|
830 int cur_dl, up;
|
|
|
831
|
|
|
832 if (ADJ_BUFPOS < new_point)
|
|
|
833 {
|
|
|
834 up = 1;
|
|
|
835 cur_rb = x + 1;
|
|
|
836 cur_dl = y;
|
|
|
837 }
|
|
|
838 else /* (rb->bufpos + dl->offset) > new_point */
|
|
|
839 {
|
|
|
840 up = 0;
|
|
|
841
|
|
|
842 if (!x)
|
|
|
843 {
|
|
|
844 cur_dl = y - 1;
|
|
|
845 first = 0;
|
|
|
846 }
|
|
|
847 else
|
|
|
848 {
|
|
|
849 cur_rb = x - 1;
|
|
|
850 cur_dl = y;
|
|
|
851 first = 1;
|
|
|
852 }
|
|
|
853 }
|
|
|
854
|
|
|
855 while ((up ? (cur_dl < Dynarr_length (cla)) : (cur_dl >= 0)))
|
|
|
856 {
|
|
|
857 dl = Dynarr_atp (cla, cur_dl);
|
|
|
858 db = get_display_block_from_line (dl, TEXT);
|
|
|
859
|
|
|
860 if (!up && !first)
|
|
|
861 cur_rb = Dynarr_length (db->runes) - 1;
|
|
|
862
|
|
|
863 while ((!scroll_on_clipped_lines || !dl->clip) &&
|
|
|
864 (up ? (cur_rb < Dynarr_length (db->runes)) : (cur_rb >= 0)))
|
|
|
865 {
|
|
|
866 rb = Dynarr_atp (db->runes, cur_rb);
|
|
|
867
|
|
|
868 if (rb->cursor_type != IGNORE_CURSOR
|
|
|
869 && rb->cursor_type != NO_CURSOR &&
|
|
|
870 (ADJ_BUFPOS == new_point
|
|
|
871 || (ADJ_ENDPOS && (new_point >= ADJ_BUFPOS)
|
|
|
872 && (new_point <= ADJ_BUFPOS))))
|
|
|
873 {
|
|
|
874 rb->cursor_type = CURSOR_ON;
|
|
|
875 dl->cursor_elt = cur_rb;
|
|
185
|
876
|
|
0
|
877
|
|
|
878 output_display_line (w, 0, cla, cur_dl, rb->xpos,
|
|
|
879 rb->xpos + rb->width);
|
|
|
880
|
|
|
881 w->last_point_x[CURRENT_DISP] = cur_rb;
|
|
|
882 w->last_point_y[CURRENT_DISP] = cur_dl;
|
|
|
883 Fset_marker (w->last_point[CURRENT_DISP],
|
|
|
884 make_int (ADJ_BUFPOS), w->buffer);
|
|
|
885
|
|
|
886 if (!no_output_end)
|
|
|
887 DEVMETH (d, output_end, (d));
|
|
|
888 return 1;
|
|
|
889 }
|
|
|
890
|
|
|
891 (up ? cur_rb++ : cur_rb--);
|
|
|
892 }
|
|
|
893
|
|
|
894 (up ? (cur_rb = 0) : (first = 0));
|
|
|
895 (up ? cur_dl++ : cur_dl--);
|
|
|
896 }
|
|
|
897 }
|
|
|
898
|
|
|
899 if (!no_output_end)
|
|
|
900 DEVMETH (d, output_end, (d));
|
|
|
901 return 0;
|
|
|
902 }
|
|
|
903 #undef ADJ_BUFPOS
|
|
|
904 #undef ADJ_ENDPOS
|
|
|
905
|
|
|
906 /*****************************************************************************
|
|
|
907 redraw_cursor_in_window
|
|
|
908
|
|
|
909 For the given window W, redraw the cursor if it is contained within
|
|
|
910 the window.
|
|
|
911 ****************************************************************************/
|
|
|
912 static void
|
|
|
913 redraw_cursor_in_window (struct window *w, int run_end_begin_meths)
|
|
|
914 {
|
|
|
915 struct frame *f = XFRAME (w->frame);
|
|
|
916 struct device *d = XDEVICE (f->device);
|
|
|
917
|
|
|
918 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
919 struct display_line *dl;
|
|
|
920 struct display_block *db;
|
|
|
921 struct rune *rb;
|
|
|
922
|
|
|
923 int x = w->last_point_x[CURRENT_DISP];
|
|
|
924 int y = w->last_point_y[CURRENT_DISP];
|
|
|
925
|
|
265
|
926 if (cursor_in_echo_area && MINI_WINDOW_P (w) &&
|
|
|
927 !echo_area_active (f) && minibuf_level == 0)
|
|
|
928 {
|
|
|
929 MAYBE_DEVMETH (d, set_final_cursor_coords, (f, w->pixel_top, 0));
|
|
|
930 }
|
|
|
931
|
|
0
|
932 if (y < 0 || y >= Dynarr_length (dla))
|
|
|
933 return;
|
|
|
934
|
|
|
935 if (MINI_WINDOW_P (w) && f != device_selected_frame (d) &&
|
|
|
936 !is_surrogate_for_selected_frame (f))
|
|
|
937 return;
|
|
|
938
|
|
|
939 dl = Dynarr_atp (dla, y);
|
|
|
940 db = get_display_block_from_line (dl, TEXT);
|
|
|
941
|
|
|
942 if (x < 0 || x >= Dynarr_length (db->runes))
|
|
|
943 return;
|
|
|
944
|
|
|
945 rb = Dynarr_atp (db->runes, x);
|
|
|
946
|
|
|
947 /* Don't call the output routine if the block isn't actually the
|
|
|
948 cursor. */
|
|
|
949 if (rb->cursor_type == CURSOR_ON)
|
|
|
950 {
|
|
265
|
951 MAYBE_DEVMETH (d, set_final_cursor_coords,
|
|
|
952 (f, dl->ypos - 1, rb->xpos));
|
|
|
953
|
|
0
|
954 if (run_end_begin_meths)
|
|
|
955 DEVMETH (d, output_begin, (d));
|
|
|
956
|
|
|
957 output_display_line (w, 0, dla, y, rb->xpos, rb->xpos + rb->width);
|
|
|
958
|
|
|
959 if (run_end_begin_meths)
|
|
|
960 DEVMETH (d, output_end, (d));
|
|
|
961 }
|
|
|
962 }
|
|
|
963
|
|
|
964 /*****************************************************************************
|
|
|
965 redisplay_redraw_cursor
|
|
|
966
|
|
|
967 For the given frame F, redraw the cursor on the selected window.
|
|
|
968 This is used to update the cursor after focus changes.
|
|
|
969 ****************************************************************************/
|
|
|
970 void
|
|
|
971 redisplay_redraw_cursor (struct frame *f, int run_end_begin_meths)
|
|
|
972 {
|
|
272
|
973 Lisp_Object window;
|
|
|
974
|
|
|
975 if (!cursor_in_echo_area)
|
|
|
976 window = FRAME_SELECTED_WINDOW (f);
|
|
|
977 else if (FRAME_HAS_MINIBUF_P (f))
|
|
|
978 window = FRAME_MINIBUF_WINDOW (f);
|
|
|
979 else
|
|
|
980 return;
|
|
|
981
|
|
|
982 redraw_cursor_in_window (XWINDOW (window), run_end_begin_meths);
|
|
0
|
983 }
|
|
|
984
|
|
384
|
985 /****************************************************************************
|
|
388
|
986 redisplay_output_display_block
|
|
|
987
|
|
|
988 Given a display line, a block number for that start line, output all
|
|
|
989 runes between start and end in the specified display block.
|
|
|
990 ****************************************************************************/
|
|
|
991 static void
|
|
|
992 redisplay_output_display_block (struct window *w, struct display_line *dl, int block,
|
|
|
993 int start, int end, int start_pixpos, int cursor_start,
|
|
|
994 int cursor_width, int cursor_height)
|
|
|
995 {
|
|
|
996 struct frame *f = XFRAME (w->frame);
|
|
|
997 struct device *d = XDEVICE (f->device);
|
|
|
998
|
|
|
999 DEVMETH (d, output_display_block, (w, dl, block, start,
|
|
|
1000 end, start_pixpos,
|
|
|
1001 cursor_start, cursor_width,
|
|
|
1002 cursor_height));
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 /****************************************************************************
|
|
384
|
1006 redisplay_unmap_subwindows
|
|
|
1007
|
|
|
1008 Remove subwindows from the area in the box defined by the given
|
|
|
1009 parameters.
|
|
|
1010 ****************************************************************************/
|
|
|
1011 static void redisplay_unmap_subwindows (struct frame* f, int x, int y, int width, int height)
|
|
|
1012 {
|
|
|
1013 int elt;
|
|
|
1014
|
|
|
1015 for (elt = 0; elt < Dynarr_length (f->subwindow_cachels); elt++)
|
|
|
1016 {
|
|
|
1017 struct subwindow_cachel *cachel =
|
|
|
1018 Dynarr_atp (f->subwindow_cachels, elt);
|
|
|
1019
|
|
|
1020 if (cachel->being_displayed
|
|
|
1021 &&
|
|
|
1022 cachel->x + cachel->width > x && cachel->x < x + width
|
|
|
1023 &&
|
|
|
1024 cachel->y + cachel->height > y && cachel->y < y + height)
|
|
|
1025 {
|
|
|
1026 unmap_subwindow (cachel->subwindow);
|
|
|
1027 }
|
|
|
1028 }
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 /****************************************************************************
|
|
388
|
1032 redisplay_unmap_subwindows_maybe
|
|
|
1033
|
|
|
1034 Potentially subwindows from the area in the box defined by the given
|
|
|
1035 parameters.
|
|
|
1036 ****************************************************************************/
|
|
|
1037 void redisplay_unmap_subwindows_maybe (struct frame* f, int x, int y, int width, int height)
|
|
|
1038 {
|
|
|
1039 if (Dynarr_length (FRAME_SUBWINDOW_CACHE (f)))
|
|
|
1040 {
|
|
|
1041 redisplay_unmap_subwindows (f, x, y, width, height);
|
|
|
1042 }
|
|
|
1043 }
|
|
|
1044
|
|
|
1045 /****************************************************************************
|
|
384
|
1046 redisplay_output_subwindow
|
|
|
1047
|
|
|
1048
|
|
|
1049 output a subwindow. This code borrows heavily from the pixmap stuff,
|
|
|
1050 although is much simpler not needing to account for partial
|
|
|
1051 pixmaps, backgrounds etc.
|
|
|
1052 ****************************************************************************/
|
|
|
1053 void
|
|
|
1054 redisplay_output_subwindow (struct window *w, struct display_line *dl,
|
|
|
1055 Lisp_Object image_instance, int xpos, int xoffset,
|
|
|
1056 int start_pixpos, int width, face_index findex,
|
|
|
1057 int cursor_start, int cursor_width, int cursor_height)
|
|
|
1058 {
|
|
|
1059 struct Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
|
|
|
1060 Lisp_Object window;
|
|
|
1061
|
|
|
1062 int lheight = dl->ascent + dl->descent - dl->clip;
|
|
|
1063 int pheight = ((int) IMAGE_INSTANCE_SUBWINDOW_HEIGHT (p) > lheight ? lheight :
|
|
|
1064 IMAGE_INSTANCE_SUBWINDOW_HEIGHT (p));
|
|
|
1065
|
|
|
1066 XSETWINDOW (window, w);
|
|
|
1067
|
|
|
1068 /* Clear the area the subwindow is going into. The subwindow itself
|
|
|
1069 will always take care of the full width. We don't want to clear
|
|
|
1070 where it is going to go in order to avoid flicker. So, all we
|
|
|
1071 have to take care of is any area above or below the subwindow. Of
|
|
|
1072 course this is rubbish if the subwindow has transparent areas
|
|
|
1073 (for instance with frames). */
|
|
|
1074 /* #### We take a shortcut for now. We know that since we have
|
|
|
1075 subwindow_offset hardwired to 0 that the subwindow is against the top
|
|
|
1076 edge so all we have to worry about is below it. */
|
|
|
1077 if ((int) (dl->ypos - dl->ascent + pheight) <
|
|
|
1078 (int) (dl->ypos + dl->descent - dl->clip))
|
|
|
1079 {
|
|
|
1080 int clear_x, clear_width;
|
|
|
1081
|
|
|
1082 int clear_y = dl->ypos - dl->ascent + pheight;
|
|
|
1083 int clear_height = lheight - pheight;
|
|
|
1084
|
|
|
1085 if (start_pixpos >= 0 && start_pixpos > xpos)
|
|
|
1086 {
|
|
|
1087 clear_x = start_pixpos;
|
|
|
1088 clear_width = xpos + width - start_pixpos;
|
|
|
1089 }
|
|
|
1090 else
|
|
|
1091 {
|
|
|
1092 clear_x = xpos;
|
|
|
1093 clear_width = width;
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 redisplay_clear_region (window, findex, clear_x, clear_y,
|
|
|
1097 clear_width, clear_height);
|
|
|
1098 }
|
|
|
1099 #if 0
|
|
|
1100 redisplay_clear_region (window, findex, xpos - xoffset, dl->ypos - dl->ascent,
|
|
|
1101 width, lheight);
|
|
|
1102 #endif
|
|
|
1103 /* if we can't view the whole window we can't view any of it */
|
|
|
1104 if (IMAGE_INSTANCE_SUBWINDOW_HEIGHT (p) > lheight
|
|
|
1105 ||
|
|
|
1106 IMAGE_INSTANCE_SUBWINDOW_WIDTH (p) > width)
|
|
|
1107 {
|
|
|
1108 redisplay_clear_region (window, findex, xpos - xoffset, dl->ypos - dl->ascent,
|
|
|
1109 width, lheight);
|
|
|
1110 unmap_subwindow (image_instance);
|
|
|
1111 }
|
|
|
1112 else
|
|
|
1113 map_subwindow (image_instance, xpos - xoffset, dl->ypos - dl->ascent);
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 /****************************************************************************
|
|
|
1117 redisplay_clear_region
|
|
|
1118
|
|
|
1119 Clear the area in the box defined by the given parameters using the
|
|
|
1120 given face. This has been generalised so that subwindows can be
|
|
|
1121 coped with effectively.
|
|
|
1122 ****************************************************************************/
|
|
|
1123 void
|
|
|
1124 redisplay_clear_region (Lisp_Object locale, face_index findex, int x, int y,
|
|
|
1125 int width, int height)
|
|
|
1126 {
|
|
|
1127 struct window *w = NULL;
|
|
|
1128 struct frame *f = NULL;
|
|
|
1129 struct device *d;
|
|
|
1130 Lisp_Object background_pixmap = Qunbound;
|
|
|
1131 Lisp_Object fcolor = Qnil, bcolor = Qnil;
|
|
|
1132
|
|
|
1133 if (!width || !height)
|
|
|
1134 return;
|
|
|
1135
|
|
|
1136 if (WINDOWP (locale))
|
|
|
1137 {
|
|
|
1138 w = XWINDOW (locale);
|
|
|
1139 f = XFRAME (w->frame);
|
|
|
1140 }
|
|
|
1141 else if (FRAMEP (locale))
|
|
|
1142 {
|
|
|
1143 w = NULL;
|
|
|
1144 f = XFRAME (locale);
|
|
|
1145 }
|
|
|
1146 else
|
|
|
1147 abort ();
|
|
|
1148
|
|
|
1149 d = XDEVICE (f->device);
|
|
|
1150
|
|
|
1151 /* if we have subwindows in the region we have to unmap them */
|
|
|
1152 if (Dynarr_length (FRAME_SUBWINDOW_CACHE (f)))
|
|
|
1153 {
|
|
|
1154 redisplay_unmap_subwindows (f, x, y, width, height);
|
|
|
1155 }
|
|
|
1156
|
|
|
1157 /* #### This isn't quite right for when this function is called
|
|
|
1158 from the toolbar code. */
|
|
|
1159
|
|
|
1160 /* Don't use a backing pixmap in the border area */
|
|
|
1161 if (x >= FRAME_LEFT_BORDER_END (f)
|
|
|
1162 && x < FRAME_RIGHT_BORDER_START (f)
|
|
|
1163 && y >= FRAME_TOP_BORDER_END (f)
|
|
|
1164 && y < FRAME_BOTTOM_BORDER_START (f))
|
|
|
1165 {
|
|
|
1166 Lisp_Object temp;
|
|
|
1167
|
|
|
1168 if (w)
|
|
|
1169 {
|
|
|
1170 temp = WINDOW_FACE_CACHEL_BACKGROUND_PIXMAP (w, findex);
|
|
|
1171
|
|
|
1172 if (IMAGE_INSTANCEP (temp)
|
|
|
1173 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp)))
|
|
|
1174 {
|
|
|
1175 /* #### maybe we could implement such that a string
|
|
|
1176 can be a background pixmap? */
|
|
|
1177 background_pixmap = temp;
|
|
|
1178 }
|
|
|
1179 }
|
|
|
1180 else
|
|
|
1181 {
|
|
|
1182 temp = FACE_BACKGROUND_PIXMAP (Vdefault_face, locale);
|
|
|
1183
|
|
|
1184 if (IMAGE_INSTANCEP (temp)
|
|
|
1185 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp)))
|
|
|
1186 {
|
|
|
1187 background_pixmap = temp;
|
|
|
1188 }
|
|
|
1189 }
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 if (!UNBOUNDP (background_pixmap) &&
|
|
|
1193 XIMAGE_INSTANCE_PIXMAP_DEPTH (background_pixmap) == 0)
|
|
|
1194 {
|
|
|
1195 if (w)
|
|
|
1196 {
|
|
|
1197 fcolor = WINDOW_FACE_CACHEL_FOREGROUND (w, findex);
|
|
|
1198 bcolor = WINDOW_FACE_CACHEL_BACKGROUND (w, findex);
|
|
|
1199 }
|
|
|
1200 else
|
|
|
1201 {
|
|
|
1202 fcolor = FACE_FOREGROUND (Vdefault_face, locale);
|
|
|
1203 bcolor = FACE_BACKGROUND (Vdefault_face, locale);
|
|
|
1204 }
|
|
|
1205 }
|
|
|
1206 else
|
|
|
1207 {
|
|
|
1208 fcolor = (w ?
|
|
|
1209 WINDOW_FACE_CACHEL_BACKGROUND (w, findex) :
|
|
|
1210 FACE_BACKGROUND (Vdefault_face, locale));
|
|
|
1211
|
|
|
1212 }
|
|
|
1213
|
|
|
1214 if (UNBOUNDP (background_pixmap))
|
|
|
1215 background_pixmap = Qnil;
|
|
|
1216
|
|
|
1217 DEVMETH (d, clear_region,
|
|
|
1218 (locale, d, f, findex, x, y, width, height, fcolor, bcolor, background_pixmap));
|
|
|
1219 }
|
|
|
1220
|
|
0
|
1221 /*****************************************************************************
|
|
|
1222 redisplay_clear_top_of_window
|
|
|
1223
|
|
|
1224 If window is topmost, clear the internal border above it.
|
|
|
1225 ****************************************************************************/
|
|
|
1226 static void
|
|
|
1227 redisplay_clear_top_of_window (struct window *w)
|
|
|
1228 {
|
|
|
1229 Lisp_Object window;
|
|
|
1230 XSETWINDOW (window, w);
|
|
|
1231
|
|
|
1232 if (!NILP (Fwindow_highest_p (window)))
|
|
|
1233 {
|
|
|
1234 struct frame *f = XFRAME (w->frame);
|
|
|
1235 int x, y, width, height;
|
|
|
1236
|
|
|
1237 x = w->pixel_left;
|
|
|
1238 width = w->pixel_width;
|
|
|
1239
|
|
|
1240 if (window_is_leftmost (w))
|
|
|
1241 {
|
|
|
1242 x -= FRAME_BORDER_WIDTH (f);
|
|
|
1243 width += FRAME_BORDER_WIDTH (f);
|
|
|
1244 }
|
|
|
1245 if (window_is_rightmost (w))
|
|
|
1246 width += FRAME_BORDER_WIDTH (f);
|
|
185
|
1247
|
|
0
|
1248 y = FRAME_TOP_BORDER_START (f) - 1;
|
|
|
1249 height = FRAME_BORDER_HEIGHT (f) + 1;
|
|
|
1250
|
|
384
|
1251 redisplay_clear_region (window, DEFAULT_INDEX, x, y, width, height);
|
|
0
|
1252 }
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 /*****************************************************************************
|
|
|
1256 redisplay_clear_bottom_of_window
|
|
|
1257
|
|
|
1258 Clear window from right below the last display line to right above
|
|
|
1259 the modeline. The calling function can limit the area actually
|
|
|
1260 erased by setting min_start and/or max_end to positive values.
|
|
|
1261 ****************************************************************************/
|
|
|
1262 void
|
|
|
1263 redisplay_clear_bottom_of_window (struct window *w, display_line_dynarr *ddla,
|
|
|
1264 int min_start, int max_end)
|
|
|
1265 {
|
|
|
1266 struct frame *f = XFRAME (w->frame);
|
|
|
1267 struct device *d = XDEVICE (f->device);
|
|
|
1268 int ypos1, ypos2;
|
|
|
1269 int ddla_len = Dynarr_length (ddla);
|
|
|
1270
|
|
|
1271 ypos2 = WINDOW_TEXT_BOTTOM (w);
|
|
|
1272 #ifdef HAVE_SCROLLBARS
|
|
|
1273 /* This adjustment is to catch the intersection of any scrollbars. */
|
|
282
|
1274 if (f->windows_structure_changed && NILP (w->scrollbar_on_top_p))
|
|
0
|
1275 ypos2 += window_scrollbar_height (w);
|
|
|
1276 #endif
|
|
|
1277
|
|
|
1278 if (ddla_len)
|
|
|
1279 {
|
|
|
1280 if (ddla_len == 1 && Dynarr_atp (ddla, 0)->modeline)
|
|
|
1281 {
|
|
|
1282 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
1283 #ifdef HAVE_SCROLLBARS
|
|
|
1284 /* This adjustment is to catch the intersection of any scrollbars. */
|
|
282
|
1285 if (f->windows_structure_changed && !NILP (w->scrollbar_on_top_p))
|
|
0
|
1286 ypos1 -= window_scrollbar_height (w);
|
|
|
1287 #endif
|
|
|
1288 }
|
|
|
1289 else
|
|
|
1290 {
|
|
|
1291 struct display_line *dl = Dynarr_atp (ddla, ddla_len - 1);
|
|
|
1292 ypos1 = dl->ypos + dl->descent - dl->clip;
|
|
|
1293 }
|
|
|
1294 }
|
|
|
1295 else
|
|
|
1296 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
1297
|
|
|
1298 /* #### See if this can be made conditional on the frame
|
|
|
1299 changing size. */
|
|
|
1300 if (MINI_WINDOW_P (w))
|
|
|
1301 ypos2 += FRAME_BORDER_HEIGHT (f);
|
|
|
1302
|
|
|
1303 if (min_start >= 0 && ypos1 < min_start)
|
|
|
1304 ypos1 = min_start;
|
|
|
1305 if (max_end >= 0 && ypos2 > max_end)
|
|
|
1306 ypos2 = max_end;
|
|
|
1307
|
|
|
1308 if (ypos2 <= ypos1)
|
|
|
1309 return;
|
|
|
1310
|
|
|
1311 DEVMETH (d, clear_to_window_end, (w, ypos1, ypos2));
|
|
|
1312 }
|
|
|
1313
|
|
|
1314 /*****************************************************************************
|
|
|
1315 redisplay_update_line
|
|
|
1316
|
|
|
1317 This is used during incremental updates to update a single line and
|
|
|
1318 correct the offsets on all lines below it. At the moment
|
|
|
1319 update_values is false if we are only updating the modeline.
|
|
|
1320 ****************************************************************************/
|
|
|
1321 void
|
|
|
1322 redisplay_update_line (struct window *w, int first_line, int last_line,
|
|
|
1323 int update_values)
|
|
|
1324 {
|
|
|
1325 struct frame *f = XFRAME (w->frame);
|
|
|
1326 struct device *d = XDEVICE (f->device);
|
|
|
1327
|
|
|
1328 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
1329 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
1330
|
|
|
1331 DEVMETH (d, output_begin, (d));
|
|
|
1332
|
|
|
1333 while (first_line <= last_line)
|
|
|
1334 {
|
|
|
1335 Charcount old_len = (Dynarr_atp (cdla, first_line)->end_bufpos -
|
|
|
1336 Dynarr_atp (cdla, first_line)->bufpos);
|
|
|
1337 Charcount new_len = (Dynarr_atp (ddla, first_line)->end_bufpos -
|
|
|
1338 Dynarr_atp (ddla, first_line)->bufpos);
|
|
|
1339
|
|
|
1340 assert (Dynarr_length (cdla) == Dynarr_length (ddla));
|
|
|
1341
|
|
|
1342 /* Output the changes. */
|
|
|
1343 output_display_line (w, cdla, ddla, first_line, -1, -1);
|
|
|
1344
|
|
|
1345 /* Update the offsets. */
|
|
|
1346 if (update_values)
|
|
|
1347 {
|
|
|
1348 int cur_line = first_line + 1;
|
|
|
1349 while (cur_line < Dynarr_length (cdla))
|
|
|
1350 {
|
|
|
1351 Dynarr_atp (cdla, cur_line)->offset += (new_len - old_len);
|
|
|
1352 Dynarr_atp (ddla, cur_line)->offset += (new_len - old_len);
|
|
|
1353 cur_line++;
|
|
|
1354 }
|
|
|
1355 }
|
|
|
1356
|
|
|
1357 /* Update the window_end_pos and other settings. */
|
|
|
1358 if (update_values)
|
|
|
1359 {
|
|
|
1360 w->window_end_pos[CURRENT_DISP] -= (new_len - old_len);
|
|
|
1361
|
|
|
1362 if (Dynarr_atp (ddla, first_line)->cursor_elt != -1)
|
|
|
1363 {
|
|
|
1364 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP];
|
|
|
1365 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP];
|
|
|
1366 }
|
|
|
1367 }
|
|
|
1368
|
|
|
1369 first_line++;
|
|
|
1370 }
|
|
|
1371
|
|
|
1372 /* Update the window max line length. We have to scan the entire
|
|
|
1373 set of display lines otherwise we might not detect if the max is
|
|
|
1374 supposed to shrink. */
|
|
|
1375 if (update_values)
|
|
|
1376 {
|
|
|
1377 int line = 0;
|
|
|
1378
|
|
|
1379 w->max_line_len = 0;
|
|
|
1380 while (line < Dynarr_length (ddla))
|
|
|
1381 {
|
|
|
1382 struct display_line *dl = Dynarr_atp (ddla, line);
|
|
|
1383
|
|
|
1384 if (!dl->modeline)
|
|
|
1385 w->max_line_len = max (dl->num_chars, w->max_line_len);
|
|
|
1386
|
|
|
1387 line++;
|
|
|
1388 }
|
|
|
1389 }
|
|
|
1390
|
|
|
1391 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP];
|
|
|
1392 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP];
|
|
|
1393 Fset_marker (w->last_point[CURRENT_DISP],
|
|
|
1394 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer);
|
|
|
1395 Fset_marker (w->last_start[CURRENT_DISP],
|
|
|
1396 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer);
|
|
|
1397
|
|
|
1398 /* We don't bother updating the vertical scrollbars here. This
|
|
|
1399 gives us a performance increase while having minimal loss of
|
|
|
1400 quality to the scrollbar slider size and position since when this
|
|
|
1401 function is called we know that the changes to the buffer were
|
|
|
1402 very localized. We have to update the horizontal scrollbars,
|
|
|
1403 though, because this routine could cause a change which has a
|
|
|
1404 larger impact on their sizing. */
|
|
|
1405 /* #### See if we can get away with only calling this if
|
|
|
1406 max_line_len is greater than the window_char_width. */
|
|
209
|
1407 #if defined(HAVE_SCROLLBARS) && defined(HAVE_X_WINDOWS)
|
|
82
|
1408 {
|
|
|
1409 extern int stupid_vertical_scrollbar_drag_hack;
|
|
|
1410
|
|
|
1411 update_window_scrollbars (w, NULL, 1, stupid_vertical_scrollbar_drag_hack);
|
|
|
1412 stupid_vertical_scrollbar_drag_hack = 1;
|
|
|
1413 }
|
|
0
|
1414 #endif
|
|
|
1415
|
|
|
1416 /* This has to be done after we've updated the values. We don't
|
|
|
1417 call output_end for tty frames. Redisplay will do this after all
|
|
|
1418 tty windows have been updated. This cuts down on cursor
|
|
|
1419 flicker. */
|
|
|
1420 if (FRAME_TTY_P (f))
|
|
|
1421 redisplay_redraw_cursor (f, 0);
|
|
|
1422 else
|
|
|
1423 DEVMETH (d, output_end, (d));
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 /*****************************************************************************
|
|
|
1427 redisplay_output_window
|
|
|
1428
|
|
|
1429 For the given window W, ensure that the current display lines are
|
|
|
1430 equal to the desired display lines, outputing changes as necessary.
|
|
|
1431
|
|
|
1432 #### Fuck me. This just isn't going to cut it for tty's. The output
|
|
|
1433 decisions for them must be based on the contents of the entire frame
|
|
|
1434 because that is how the available output capabilities think. The
|
|
|
1435 solution is relatively simple. Create redisplay_output_frame. This
|
|
|
1436 will basically merge all of the separate window display structs into
|
|
|
1437 a single one for the frame. This combination structure will be able
|
|
|
1438 to be passed to the same output_display_line which works for windows
|
|
|
1439 on X frames and the right things will happen. It just takes time to
|
|
|
1440 do.
|
|
|
1441 ****************************************************************************/
|
|
|
1442 void
|
|
|
1443 redisplay_output_window (struct window *w)
|
|
|
1444 {
|
|
|
1445 struct frame *f = XFRAME (w->frame);
|
|
|
1446 struct device *d = XDEVICE (f->device);
|
|
|
1447
|
|
|
1448 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
|
|
|
1449 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP);
|
|
|
1450
|
|
|
1451 int cdla_len = Dynarr_length (cdla);
|
|
|
1452 int ddla_len = Dynarr_length (ddla);
|
|
|
1453
|
|
|
1454 int line;
|
|
|
1455 int need_to_clear_bottom = 0;
|
|
|
1456 int need_to_clear_start = -1;
|
|
|
1457 int need_to_clear_end = -1;
|
|
|
1458
|
|
|
1459 /* Backgrounds may have changed or windows may have gone away
|
|
|
1460 leaving dividers lying around. */
|
|
|
1461 if (f->faces_changed
|
|
|
1462 || f->windows_structure_changed
|
|
|
1463 || w->shadow_thickness_changed)
|
|
|
1464 need_to_clear_bottom = 1;
|
|
|
1465
|
|
|
1466 /* The first thing we do is determine if we are going to need to
|
|
|
1467 clear the bottom of the window. We only need to do this if the
|
|
|
1468 bottom of the current display lines is below the bottom of the
|
|
|
1469 desired display lines. Note that the number of lines is
|
|
|
1470 irrelevant. Only the position matters. We also clear to the
|
|
|
1471 bottom of the window if the modeline has shifted position. */
|
|
|
1472 /* #### We can't blindly not clear the bottom if f->clear is true
|
|
|
1473 since there might be a window-local background. However, for
|
|
|
1474 those cases where there isn't, clearing the end of the window in
|
|
|
1475 this case sucks. */
|
|
|
1476 if (!need_to_clear_bottom)
|
|
|
1477 {
|
|
|
1478 struct display_line *cdl, *ddl;
|
|
|
1479
|
|
|
1480 /* If the modeline has changed position or size, clear the bottom
|
|
|
1481 of the window. */
|
|
|
1482 if (!need_to_clear_bottom)
|
|
|
1483 {
|
|
|
1484 cdl = ddl = 0;
|
|
|
1485
|
|
|
1486 if (cdla_len)
|
|
|
1487 cdl = Dynarr_atp (cdla, 0);
|
|
|
1488 if (ddla_len)
|
|
|
1489 ddl = Dynarr_atp (ddla, 0);
|
|
|
1490
|
|
|
1491 if (!cdl || !ddl)
|
|
|
1492 need_to_clear_bottom = 1;
|
|
|
1493 else if ((!cdl->modeline && ddl->modeline)
|
|
|
1494 || (cdl->modeline && !ddl->modeline))
|
|
|
1495 need_to_clear_bottom = 1;
|
|
|
1496 else if (cdl->ypos != ddl->ypos ||
|
|
|
1497 cdl->ascent != ddl->ascent ||
|
|
|
1498 cdl->descent != ddl->descent ||
|
|
|
1499 cdl->clip != ddl->clip)
|
|
|
1500 need_to_clear_bottom = 1;
|
|
|
1501
|
|
|
1502 /* #### This kludge is to make sure the modeline shadows get
|
|
|
1503 redrawn if the modeline position shifts. */
|
|
|
1504 if (need_to_clear_bottom)
|
|
|
1505 w->shadow_thickness_changed = 1;
|
|
|
1506 }
|
|
|
1507
|
|
|
1508 if (!need_to_clear_bottom)
|
|
|
1509 {
|
|
|
1510 cdl = ddl = 0;
|
|
|
1511
|
|
|
1512 if (cdla_len)
|
|
|
1513 cdl = Dynarr_atp (cdla, cdla_len - 1);
|
|
|
1514 if (ddla_len)
|
|
|
1515 ddl = Dynarr_atp (ddla, ddla_len - 1);
|
|
|
1516
|
|
|
1517 if (!cdl || !ddl)
|
|
|
1518 need_to_clear_bottom = 1;
|
|
|
1519 else
|
|
|
1520 {
|
|
|
1521 int cdl_bottom, ddl_bottom;
|
|
|
1522
|
|
|
1523 cdl_bottom = cdl->ypos + cdl->descent;
|
|
|
1524 ddl_bottom = ddl->ypos + ddl->descent;
|
|
|
1525
|
|
|
1526 if (cdl_bottom > ddl_bottom)
|
|
|
1527 {
|
|
|
1528 need_to_clear_bottom = 1;
|
|
|
1529 need_to_clear_start = ddl_bottom;
|
|
|
1530 need_to_clear_end = cdl_bottom;
|
|
|
1531 }
|
|
|
1532 }
|
|
|
1533 }
|
|
|
1534 }
|
|
|
1535
|
|
|
1536 /* Perform any output initialization. */
|
|
|
1537 DEVMETH (d, output_begin, (d));
|
|
|
1538
|
|
|
1539 /* If the window's structure has changed clear the internal border
|
|
|
1540 above it if it is topmost (the function will check). */
|
|
|
1541 if (f->windows_structure_changed)
|
|
|
1542 redisplay_clear_top_of_window (w);
|
|
|
1543
|
|
|
1544 /* Output each line. */
|
|
|
1545 for (line = 0; line < Dynarr_length (ddla); line++)
|
|
|
1546 {
|
|
|
1547 output_display_line (w, cdla, ddla, line, -1, -1);
|
|
|
1548 }
|
|
|
1549
|
|
|
1550 /* If the number of display lines has shrunk, adjust. */
|
|
|
1551 if (cdla_len > ddla_len)
|
|
|
1552 {
|
|
|
1553 Dynarr_length (cdla) = ddla_len;
|
|
|
1554 }
|
|
|
1555
|
|
|
1556 /* Output a vertical divider between windows, if necessary. */
|
|
|
1557 if (window_needs_vertical_divider (w)
|
|
|
1558 && (f->windows_structure_changed || f->clear))
|
|
|
1559 {
|
|
|
1560 DEVMETH (d, output_vertical_divider, (w, f->windows_structure_changed));
|
|
|
1561 }
|
|
|
1562
|
|
|
1563 /* Clear the rest of the window, if necessary. */
|
|
|
1564 if (need_to_clear_bottom)
|
|
|
1565 {
|
|
|
1566 redisplay_clear_bottom_of_window (w, ddla, need_to_clear_start,
|
|
|
1567 need_to_clear_end);
|
|
|
1568 }
|
|
|
1569
|
|
|
1570 w->window_end_pos[CURRENT_DISP] = w->window_end_pos[DESIRED_DISP];
|
|
|
1571 Fset_marker (w->start[CURRENT_DISP],
|
|
|
1572 make_int (marker_position (w->start[DESIRED_DISP])),
|
|
|
1573 w->buffer);
|
|
|
1574 Fset_marker (w->pointm[CURRENT_DISP],
|
|
|
1575 make_int (marker_position (w->pointm[DESIRED_DISP])),
|
|
|
1576 w->buffer);
|
|
|
1577 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP];
|
|
|
1578 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP];
|
|
|
1579 Fset_marker (w->last_start[CURRENT_DISP],
|
|
|
1580 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer);
|
|
|
1581 Fset_marker (w->last_point[CURRENT_DISP],
|
|
|
1582 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer);
|
|
|
1583 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP];
|
|
|
1584 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP];
|
|
|
1585 w->shadow_thickness_changed = 0;
|
|
|
1586
|
|
|
1587 set_window_display_buffer (w, XBUFFER (w->buffer));
|
|
|
1588 find_window_mirror (w)->truncate_win = window_truncation_on (w);
|
|
|
1589
|
|
|
1590 /* Overkill on invalidating the cache. It is very bad for it to not
|
|
|
1591 get invalidated when it should be. */
|
|
|
1592 INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE (d);
|
|
|
1593
|
|
|
1594 /* We don't call output_end for tty frames. Redisplay will do this
|
|
|
1595 after all tty windows have been updated. This cuts down on
|
|
|
1596 cursor flicker. */
|
|
|
1597 if (FRAME_TTY_P (f))
|
|
|
1598 redisplay_redraw_cursor (f, 0);
|
|
|
1599 else
|
|
|
1600 DEVMETH (d, output_end, (d));
|
|
|
1601
|
|
|
1602 #ifdef HAVE_SCROLLBARS
|
|
|
1603 update_window_scrollbars (w, NULL, !MINI_WINDOW_P (w), 0);
|
|
|
1604 #endif
|
|
|
1605 }
|
