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428
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1 /* Window creation, deletion and examination for XEmacs.
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2 Copyright (C) 1985-1987, 1992-1995 Free Software Foundation, Inc.
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3 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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793
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4 Copyright (C) 1995, 1996, 2002 Ben Wing.
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428
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5 Copyright (C) 1996 Chuck Thompson.
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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: FSF 19.30. */
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25 /* Beginning to diverge significantly. */
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26
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853
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27 /* Authorship:
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28
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29 Based on code from pre-release FSF 19, c. 1991.
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30 Significantly reworked by Chuck Thompson, 1993-1996.
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31 window mirror stuff added by Chuck Thompson c. 1993.
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32 various cleanup by Ben Wing c. 1995 (window slots, window init code,
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33 memory usage, synch. up to FSF 19.30, other).
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34 Unknown work by Andy Piper.
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35 new window-width/height fns. by Ben Wing, Mar 2000. */
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36
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428
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37 /* This file has been Mule-ized. */
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38
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39 #include <config.h>
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40 #include "lisp.h"
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41
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42 #include "buffer.h"
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800
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43 #include "commands.h"
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872
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44 #include "device-impl.h"
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800
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45 #include "elhash.h"
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428
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46 #include "faces.h"
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872
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47 #include "frame-impl.h"
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800
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48 #include "glyphs.h"
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49 #include "gutter.h"
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428
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50 #include "objects.h"
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51 #include "redisplay.h"
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872
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52 #include "window-impl.h"
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428
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53
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1149
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54 Lisp_Object Qwindowp, Qwindow_live_p;
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428
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55 Lisp_Object Qdisplay_buffer;
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56
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57 #ifdef MEMORY_USAGE_STATS
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58 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qother_redisplay;
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59 #ifdef HAVE_SCROLLBARS
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60 Lisp_Object Qscrollbar_instances;
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61 #endif
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62 #endif
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63
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1979
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64 extern int allow_deletion_of_last_visible_frame;
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65
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428
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66 EXFUN (Fnext_window, 4);
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67
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68 static int window_pixel_width_to_char_width (struct window *w,
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69 int pixel_width,
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70 int include_margins_p);
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71 static int window_char_width_to_pixel_width (struct window *w,
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72 int char_width,
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73 int include_margins_p);
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74 static int window_pixel_height_to_char_height (struct window *w,
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75 int pixel_height,
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76 int include_gutters_p);
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77 static int window_char_height_to_pixel_height (struct window *w,
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78 int char_height,
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79 int include_gutters_p);
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444
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80 static void change_window_height (Lisp_Object window, int delta,
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81 Lisp_Object horizontalp, int inpixels);
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428
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82
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83 /* Thickness of shadow border around 3d modelines. */
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84 Lisp_Object Vmodeline_shadow_thickness;
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85
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86 /* Whether vertical dividers are draggable and displayed */
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87 Lisp_Object Vvertical_divider_always_visible_p;
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88
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89 /* Whether a modeline should be displayed. */
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90 Lisp_Object Vhas_modeline_p;
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91
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92 /* Thickness of shadow border around vertical dividers. */
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93 Lisp_Object Vvertical_divider_shadow_thickness;
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94
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95 /* Divider surface width (not counting 3-d borders) */
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96 Lisp_Object Vvertical_divider_line_width;
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97
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442
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98 /* Spacing between outer edge of divider border and window edge */
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428
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99 Lisp_Object Vvertical_divider_spacing;
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100
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101 /* How much to scroll by per-line. */
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102 Lisp_Object Vwindow_pixel_scroll_increment;
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103
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104 /* Scroll if point lands on the bottom line and that line is partially
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105 clipped. */
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106 int scroll_on_clipped_lines;
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107
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108 /* The minibuffer window of the selected frame.
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109 Note that you cannot test for minibufferness of an arbitrary window
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110 by comparing against this; but you can test for minibufferness of
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111 the selected window. */
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112 Lisp_Object minibuf_window;
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113
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114 /* Non-nil means it is the window for C-M-v to scroll
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115 when the minibuffer is selected. */
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116 Lisp_Object Vminibuffer_scroll_window;
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117
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118 /* Non-nil means this is the buffer whose window C-M-v should scroll. */
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119 Lisp_Object Vother_window_scroll_buffer;
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120
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121 /* Non-nil means it's the function to call to display temp buffers. */
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122 Lisp_Object Vtemp_buffer_show_function;
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123
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124 /* If a window gets smaller than either of these, it is removed. */
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458
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125 Fixnum window_min_height;
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126 Fixnum window_min_width;
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428
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127
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128 /* Number of lines of continuity in scrolling by screenfuls. */
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458
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129 Fixnum next_screen_context_lines;
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428
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130
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1149
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131 Lisp_Object Qcurrent_window_configuration, Qset_window_configuration;
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428
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132
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707
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133 Lisp_Object Qtruncate_partial_width_windows;
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134
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428
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135 #define SET_LAST_MODIFIED(w, cache_too) \
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136 do { \
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137 (w)->last_modified[CURRENT_DISP] = Qzero; \
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138 (w)->last_modified[DESIRED_DISP] = Qzero; \
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139 (w)->last_modified[CMOTION_DISP] = Qzero; \
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140 if (cache_too) \
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141 (w)->line_cache_last_updated = Qzero; \
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142 } while (0)
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143
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144 #define SET_LAST_FACECHANGE(w) \
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145 do { \
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146 (w)->last_facechange[CURRENT_DISP] = Qzero; \
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147 (w)->last_facechange[DESIRED_DISP] = Qzero; \
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148 (w)->last_facechange[CMOTION_DISP] = Qzero; \
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149 } while (0)
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150
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151
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1204
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152
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153 static const struct memory_description int_description_1[] = {
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154 { XD_END }
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155 };
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156
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157 static const struct sized_memory_description int_description = {
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158 sizeof (int),
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159 int_description_1
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160 };
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161
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162 static const struct memory_description int_dynarr_description_1[] = {
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163 XD_DYNARR_DESC (int_dynarr, &int_description),
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164 { XD_END }
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165 };
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166
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167 static const struct sized_memory_description int_dynarr_description = {
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168 sizeof (int_dynarr),
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169 int_dynarr_description_1
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170 };
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171
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172 static const struct memory_description face_cachel_description_1[] = {
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173 { XD_STRUCT_PTR, offsetof (face_cachel, merged_faces),
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174 1, &int_dynarr_description },
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175 { XD_LISP_OBJECT, offsetof (face_cachel, face) },
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176 { XD_LISP_OBJECT, offsetof (face_cachel, foreground) },
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177 { XD_LISP_OBJECT, offsetof (face_cachel, background) },
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178 { XD_LISP_OBJECT_ARRAY, offsetof (face_cachel, font), NUM_LEADING_BYTES },
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179 { XD_LISP_OBJECT, offsetof (face_cachel, display_table) },
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180 { XD_LISP_OBJECT, offsetof (face_cachel, background_pixmap) },
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181 { XD_END }
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182 };
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183
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184 static const struct sized_memory_description face_cachel_description = {
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185 sizeof (face_cachel),
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186 face_cachel_description_1
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187 };
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188
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189 static const struct memory_description face_cachel_dynarr_description_1[] = {
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190 XD_DYNARR_DESC (face_cachel_dynarr, &face_cachel_description),
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191 { XD_END }
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192 };
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193
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194 static const struct sized_memory_description face_cachel_dynarr_description = {
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195 sizeof (face_cachel_dynarr),
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196 face_cachel_dynarr_description_1
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197 };
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198
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199 static const struct memory_description glyph_cachel_description_1[] = {
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200 { XD_LISP_OBJECT, offsetof (glyph_cachel, glyph) },
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201 { XD_END }
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202 };
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203
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204 static const struct sized_memory_description glyph_cachel_description = {
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205 sizeof (glyph_cachel),
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206 glyph_cachel_description_1
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207 };
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208
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209 static const struct memory_description glyph_cachel_dynarr_description_1[] = {
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210 XD_DYNARR_DESC (glyph_cachel_dynarr, &glyph_cachel_description),
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211 { XD_END }
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212 };
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213
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214 static const struct sized_memory_description glyph_cachel_dynarr_description = {
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215 sizeof (glyph_cachel_dynarr),
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216 glyph_cachel_dynarr_description_1
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217 };
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218
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219 static const struct memory_description line_start_cache_description_1[] = {
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220 { XD_END }
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221 };
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222
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223 static const struct sized_memory_description line_start_cache_description = {
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224 sizeof (line_start_cache),
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225 line_start_cache_description_1
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226 };
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227
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228 static const struct memory_description line_start_cache_dynarr_description_1[] = {
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229 XD_DYNARR_DESC (line_start_cache_dynarr, &line_start_cache_description),
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230 { XD_END }
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231 };
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232
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233 static const struct sized_memory_description line_start_cache_dynarr_description = {
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234 sizeof (line_start_cache_dynarr),
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235 line_start_cache_dynarr_description_1
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236 };
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237
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238 static const struct memory_description window_description [] = {
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239 #define WINDOW_SLOT(slot) { XD_LISP_OBJECT, offsetof (struct window, slot) },
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240 #define WINDOW_SLOT_ARRAY(slot, size) \
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241 { XD_LISP_OBJECT_ARRAY, offsetof (struct window, slot), size },
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242 #include "winslots.h"
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243
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244 { XD_STRUCT_PTR, offsetof (struct window, face_cachels),
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245 1, &face_cachel_dynarr_description },
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246 { XD_STRUCT_PTR, offsetof (struct window, glyph_cachels),
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247 1, &glyph_cachel_dynarr_description },
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248 { XD_STRUCT_PTR, offsetof (struct window, line_start_cache),
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249 1, &line_start_cache_dynarr_description },
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250 { XD_END }
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251 };
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428
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252
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253 static Lisp_Object
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254 mark_window (Lisp_Object obj)
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255 {
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256 struct window *window = XWINDOW (obj);
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257
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258 mark_face_cachels (window->face_cachels);
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259 mark_glyph_cachels (window->glyph_cachels);
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260
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617
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261 #define WINDOW_SLOT(slot) mark_object (window->slot);
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428
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262 #include "winslots.h"
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263
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264 return Qnil;
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265 }
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266
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267 static void
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2286
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268 print_window (Lisp_Object obj, Lisp_Object printcharfun,
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269 int UNUSED (escapeflag))
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428
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270 {
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271 if (print_readably)
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563
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272 printing_unreadable_object ("#<window 0x%x>", XWINDOW (obj)->header.uid);
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428
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273
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826
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274 write_c_string (printcharfun, "#<window");
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428
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275 if (!NILP (XWINDOW (obj)->buffer))
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276 {
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277 Lisp_Object name = XBUFFER (XWINDOW (obj)->buffer)->name;
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800
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278 write_fmt_string_lisp (printcharfun, " on %S", 1, name);
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428
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279 }
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800
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280 write_fmt_string (printcharfun, " 0x%x>", XWINDOW (obj)->header.uid);
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428
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281 }
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282
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283 static void
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2286
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284 finalize_window (void *header, int UNUSED (for_disksave))
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428
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285 {
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286 struct window *w = (struct window *) header;
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287
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288 if (w->line_start_cache)
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289 {
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290 Dynarr_free (w->line_start_cache);
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291 w->line_start_cache = 0;
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292 }
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293
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294 if (w->face_cachels)
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295 {
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296 int i;
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297
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298 for (i = 0; i < Dynarr_length (w->face_cachels); i++)
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299 {
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300 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i);
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301 if (cachel->merged_faces)
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302 {
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303 Dynarr_free (cachel->merged_faces);
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304 cachel->merged_faces = 0;
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305 }
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306 }
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307 Dynarr_free (w->face_cachels);
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308 w->face_cachels = 0;
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309 }
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310
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311 if (w->glyph_cachels)
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312 {
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313 Dynarr_free (w->glyph_cachels);
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314 w->glyph_cachels = 0;
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315 }
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316 }
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317
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844
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318 /* These caches map buffers to markers. They are key-weak so that entries
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319 remain around as long as the buffers do. */
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320
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321 static Lisp_Object
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322 make_saved_buffer_point_cache (void)
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323 {
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324 return make_lisp_hash_table (20, HASH_TABLE_KEY_WEAK, HASH_TABLE_EQ);
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325 }
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326
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934
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327 DEFINE_LRECORD_IMPLEMENTATION ("window", window,
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328 0, /*dumpable-flag*/
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329 mark_window, print_window, finalize_window,
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1204
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330 0, 0, window_description, struct window);
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428
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331
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332 #define INIT_DISP_VARIABLE(field, initialization) \
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333 p->field[CURRENT_DISP] = initialization; \
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334 p->field[DESIRED_DISP] = initialization; \
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335 p->field[CMOTION_DISP] = initialization;
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336
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337 /* We have an implicit assertion that the first two elements (default
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338 and modeline faces) are always present in the face_element_cache.
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339 Normally redisplay ensures this. However, it is possible for a
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340 window to get created and functions which reference these values
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341 called before redisplay works with the window for the first time.
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342 All callers of allocate_window should therefore call
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343 reset_face_cachels on the created window. We can't do it
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344 here because the window must have its frame pointer set or
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345 reset_face_cachels will fail. */
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346 Lisp_Object
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347 allocate_window (void)
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|
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348 {
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349 struct window *p = alloc_lcrecord_type (struct window, &lrecord_window);
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|
1204
|
350 Lisp_Object val = wrap_window (p);
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|
617
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351
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352 #define WINDOW_SLOT(slot) p->slot = Qnil;
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353 #include "winslots.h"
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354
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428
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355 INIT_DISP_VARIABLE (start, Fmake_marker ());
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356 INIT_DISP_VARIABLE (pointm, Fmake_marker ());
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357 p->sb_point = Fmake_marker ();
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|
844
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358 p->saved_point_cache = make_saved_buffer_point_cache ();
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359 p->saved_last_window_start_cache = make_saved_buffer_point_cache ();
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428
|
360 p->use_time = Qzero;
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|
361 INIT_DISP_VARIABLE (last_modified, Qzero);
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362 INIT_DISP_VARIABLE (last_point, Fmake_marker ());
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363 INIT_DISP_VARIABLE (last_start, Fmake_marker ());
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|
364 INIT_DISP_VARIABLE (last_facechange, Qzero);
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365 p->face_cachels = Dynarr_new (face_cachel);
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366 p->glyph_cachels = Dynarr_new (glyph_cachel);
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|
367 p->line_start_cache = Dynarr_new (line_start_cache);
|
|
450
|
368 p->subwindow_instance_cache = make_image_instance_cache_hash_table ();
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|
|
369
|
|
428
|
370 p->line_cache_last_updated = Qzero;
|
|
442
|
371
|
|
428
|
372 p->windows_changed = 1;
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|
|
373 p->shadow_thickness_changed = 1;
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374
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|
375 return val;
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|
|
376 }
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|
|
377 #undef INIT_DISP_VARIABLE
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|
|
378
|
|
617
|
379 /************************************************************************/
|
|
|
380 /* Window mirror structure */
|
|
|
381 /************************************************************************/
|
|
|
382
|
|
428
|
383 /*
|
|
|
384 * The redisplay structures used to be stored with each window. While
|
|
|
385 * they are logically something associated with frames they can't be
|
|
|
386 * stored there with a redisplay which handles variable height lines.
|
|
|
387 * Lines in horizontally split windows might not line up. So they get
|
|
|
388 * stored with the windows.
|
|
|
389 *
|
|
|
390 * The problem with this is window configurations. When restoring a
|
|
|
391 * window configuration it now becomes problematic to do an
|
|
|
392 * incremental redisplay. The solution is to store the redisplay
|
|
|
393 * structures with the frame as they should be but laid out in the
|
|
|
394 * same manner as the window structure. Thus is born the window
|
|
|
395 * mirror.
|
|
|
396 *
|
|
|
397 * It also becomes a convenient place to stick scrollbar instances
|
|
|
398 * since they extrapolate out to having the same problem described for
|
|
|
399 * the display structures.
|
|
|
400 */
|
|
|
401
|
|
617
|
402 /* NOTE: The window-mirror structure formerly was not a Lisp object, and
|
|
|
403 marking was handled specially. I've gotten recurring crashes, however,
|
|
|
404 using the mouse wheel under Windows, where either the window mirror
|
|
|
405 accessed through a scrollbar instance, or the frame pointed to by that
|
|
|
406 window mirror, gets garbaged. Things are tricky under windows because
|
|
|
407 the scrollbar instances are stored in HWND-specific data. Furthermore,
|
|
|
408 we have scrollbar-instance caches to complicate things. Both of these
|
|
|
409 make it very difficult (for me at least, not being intimately familiar
|
|
|
410 with the redisplay code) to track exactly when and where a particular
|
|
|
411 window mirror or scrollbar instance has pointers to it, or whether a
|
|
|
412 window mirror might have a dead frame or buffer in it (i.e. not
|
|
|
413 necessarily gc-protected by being on a global list). By far the safest
|
|
|
414 thing, then, is to make both structures Lisp objects and not explicitly
|
|
|
415 xfree() them. This should make no practical difference in memory usage
|
|
|
416 because neither structure is created very often (only when windows are
|
|
|
417 created or deleted). --ben */
|
|
|
418
|
|
1204
|
419 static const struct memory_description window_mirror_description [] = {
|
|
|
420 { XD_LISP_OBJECT, offsetof (struct window_mirror, frame) },
|
|
|
421 { XD_LISP_OBJECT, offsetof (struct window_mirror, next) },
|
|
|
422 { XD_LISP_OBJECT, offsetof (struct window_mirror, hchild) },
|
|
|
423 { XD_LISP_OBJECT, offsetof (struct window_mirror, vchild) },
|
|
|
424
|
|
|
425 { XD_STRUCT_PTR, offsetof (struct window_mirror, current_display_lines),
|
|
|
426 1, &display_line_dynarr_description },
|
|
|
427 { XD_STRUCT_PTR, offsetof (struct window_mirror, desired_display_lines),
|
|
|
428 1, &display_line_dynarr_description },
|
|
|
429
|
|
|
430 { XD_LISP_OBJECT, offsetof (struct window_mirror, buffer) },
|
|
|
431
|
|
|
432 #ifdef HAVE_SCROLLBARS
|
|
|
433 { XD_LISP_OBJECT, offsetof (struct window_mirror,
|
|
|
434 scrollbar_vertical_instance) },
|
|
|
435 { XD_LISP_OBJECT, offsetof (struct window_mirror,
|
|
|
436 scrollbar_horizontal_instance) },
|
|
|
437 #endif /* HAVE_SCROLLBARS */
|
|
|
438
|
|
934
|
439 { XD_END }
|
|
|
440 };
|
|
|
441
|
|
617
|
442 static Lisp_Object
|
|
|
443 mark_window_mirror (Lisp_Object obj)
|
|
|
444 {
|
|
|
445 struct window_mirror *mir = XWINDOW_MIRROR (obj);
|
|
|
446
|
|
|
447 if (mir->current_display_lines)
|
|
|
448 mark_redisplay_structs (mir->current_display_lines);
|
|
|
449 if (mir->desired_display_lines)
|
|
|
450 mark_redisplay_structs (mir->desired_display_lines);
|
|
|
451
|
|
|
452 if (mir->hchild)
|
|
|
453 mark_object (wrap_window_mirror (mir->hchild));
|
|
|
454 if (mir->vchild)
|
|
|
455 mark_object (wrap_window_mirror (mir->vchild));
|
|
|
456
|
|
|
457 if (mir->frame)
|
|
|
458 mark_object (wrap_frame (mir->frame));
|
|
|
459 if (mir->buffer)
|
|
|
460 mark_object (wrap_buffer (mir->buffer));
|
|
|
461
|
|
|
462 #ifdef HAVE_SCROLLBARS
|
|
|
463 if (mir->scrollbar_vertical_instance)
|
|
|
464 mark_object (wrap_scrollbar_instance (mir->scrollbar_vertical_instance));
|
|
|
465 if (mir->scrollbar_horizontal_instance)
|
|
|
466 mark_object (wrap_scrollbar_instance (mir->scrollbar_horizontal_instance));
|
|
|
467 #endif /* HAVE_SCROLLBARS */
|
|
|
468 if (mir->next)
|
|
|
469 return wrap_window_mirror (mir->next);
|
|
|
470 else
|
|
|
471 return Qnil;
|
|
|
472 }
|
|
|
473
|
|
934
|
474 DEFINE_LRECORD_IMPLEMENTATION ("window-mirror", window_mirror,
|
|
|
475 0, /*dumpable-flag*/
|
|
|
476 mark_window_mirror, internal_object_printer,
|
|
1204
|
477 0, 0, 0, window_mirror_description,
|
|
|
478 struct window_mirror);
|
|
617
|
479
|
|
428
|
480 /* Create a new window mirror structure and associated redisplay
|
|
|
481 structs. */
|
|
|
482 static struct window_mirror *
|
|
|
483 new_window_mirror (struct frame *f)
|
|
|
484 {
|
|
617
|
485 struct window_mirror *t =
|
|
|
486 alloc_lcrecord_type (struct window_mirror, &lrecord_window_mirror);
|
|
428
|
487
|
|
|
488 t->frame = f;
|
|
|
489 t->current_display_lines = Dynarr_new (display_line);
|
|
|
490 t->desired_display_lines = Dynarr_new (display_line);
|
|
|
491
|
|
|
492 return t;
|
|
|
493 }
|
|
|
494
|
|
|
495 /* Synchronize the mirror structure with a given window structure.
|
|
|
496 This is normally called from update_frame_window_mirror with a
|
|
|
497 starting window of f->root_window. */
|
|
|
498 static struct window_mirror *
|
|
|
499 update_mirror_internal (Lisp_Object win, struct window_mirror *mir)
|
|
|
500 {
|
|
|
501 if (NILP (win))
|
|
|
502 {
|
|
|
503 if (mir)
|
|
|
504 {
|
|
|
505 free_window_mirror (mir);
|
|
|
506 mir = NULL;
|
|
|
507 }
|
|
|
508 return mir;
|
|
|
509 }
|
|
|
510 else
|
|
|
511 if (!mir)
|
|
|
512 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame));
|
|
|
513
|
|
1204
|
514 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next);
|
|
428
|
515 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild);
|
|
|
516 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild);
|
|
|
517
|
|
|
518 /*
|
|
|
519 * If the redisplay structs are not empty and the mirror has
|
|
|
520 * children, then this mirror structure was formerly being used for
|
|
|
521 * display but is no longer. Reset its current display structs so
|
|
|
522 * that redisplay doesn't accidentally think they are accurate if it
|
|
|
523 * is later used for display purposes once again. Also, mark the
|
|
|
524 * scrollbar instance as not active.
|
|
|
525 */
|
|
|
526 if (mir->vchild || mir->hchild)
|
|
|
527 {
|
|
|
528 /* The redisplay structures are big. Leaving them around in
|
|
|
529 non-leaf windows can add up to a lot of wasted space. So
|
|
|
530 don't do it. */
|
|
|
531 free_display_structs (mir);
|
|
|
532 mir->current_display_lines = Dynarr_new (display_line);
|
|
|
533 mir->desired_display_lines = Dynarr_new (display_line);
|
|
|
534
|
|
|
535 #ifdef HAVE_SCROLLBARS
|
|
|
536 update_window_scrollbars (XWINDOW (win), mir, 0, 0);
|
|
|
537 #endif
|
|
|
538 mir->buffer = NULL;
|
|
|
539 }
|
|
|
540
|
|
|
541 return mir;
|
|
|
542 }
|
|
|
543
|
|
|
544 /* Given a window mirror, determine which real window it contains the
|
|
|
545 redisplay structures for. */
|
|
|
546 static Lisp_Object
|
|
|
547 real_window_internal (Lisp_Object win, struct window_mirror *rmir,
|
|
|
548 struct window_mirror *mir)
|
|
|
549 {
|
|
|
550 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next)
|
|
|
551 {
|
|
|
552 if (mir == rmir)
|
|
|
553 return win;
|
|
|
554 if (!NILP (XWINDOW (win)->vchild))
|
|
|
555 {
|
|
|
556 Lisp_Object retval =
|
|
|
557 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir);
|
|
|
558 if (!NILP (retval))
|
|
|
559 return retval;
|
|
|
560 }
|
|
|
561 if (!NILP (XWINDOW (win)->hchild))
|
|
|
562 {
|
|
|
563 Lisp_Object retval =
|
|
|
564 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir);
|
|
|
565 if (!NILP (retval))
|
|
|
566 return retval;
|
|
|
567 }
|
|
|
568 }
|
|
|
569
|
|
|
570 return Qnil;
|
|
|
571 }
|
|
|
572
|
|
|
573 /* Given a real window, find the mirror structure which contains its
|
|
|
574 redisplay structures. */
|
|
|
575 static struct window_mirror *
|
|
|
576 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir,
|
|
|
577 struct window *w)
|
|
|
578 {
|
|
|
579 for (; !NILP (win); win = XWINDOW (win)->next, rmir = rmir->next)
|
|
|
580 {
|
|
|
581 if (w == XWINDOW (win))
|
|
|
582 return rmir;
|
|
|
583
|
|
|
584 if (!NILP (XWINDOW (win)->vchild))
|
|
|
585 {
|
|
|
586 struct window_mirror *retval =
|
|
|
587 find_window_mirror_internal (XWINDOW (win)->vchild,
|
|
|
588 rmir->vchild, w);
|
|
|
589 if (retval) return retval;
|
|
|
590 }
|
|
|
591
|
|
|
592 if (!NILP (XWINDOW (win)->hchild))
|
|
|
593 {
|
|
|
594 struct window_mirror *retval =
|
|
|
595 find_window_mirror_internal (XWINDOW (win)->hchild,
|
|
|
596 rmir->hchild, w);
|
|
|
597 if (retval) return retval;
|
|
|
598 }
|
|
|
599 }
|
|
|
600
|
|
|
601 return 0;
|
|
|
602 }
|
|
|
603
|
|
|
604 /* Update the mirror structure for the given frame. */
|
|
|
605 void
|
|
|
606 update_frame_window_mirror (struct frame *f)
|
|
|
607 {
|
|
617
|
608 f->root_mirror =
|
|
|
609 wrap_window_mirror (update_mirror_internal
|
|
|
610 (f->root_window,
|
|
|
611 NILP (f->root_mirror) ? 0 :
|
|
|
612 XWINDOW_MIRROR (f->root_mirror)));
|
|
428
|
613 f->mirror_dirty = 0;
|
|
|
614 }
|
|
|
615
|
|
|
616 /* Free a given mirror structure along with all of its children as
|
|
|
617 well as their associated display structures. */
|
|
|
618 void
|
|
|
619 free_window_mirror (struct window_mirror *mir)
|
|
|
620 {
|
|
|
621 while (mir)
|
|
|
622 {
|
|
|
623 if (mir->hchild) free_window_mirror (mir->hchild);
|
|
|
624 if (mir->vchild) free_window_mirror (mir->vchild);
|
|
|
625 #ifdef HAVE_SCROLLBARS
|
|
|
626 release_window_mirror_scrollbars (mir);
|
|
|
627 #endif
|
|
|
628 free_display_structs (mir);
|
|
|
629 mir = mir->next;
|
|
617
|
630 /* not worth calling free_managed_lcrecord() -- window mirrors
|
|
|
631 are not created that frequently and it's dangerous. we don't
|
|
|
632 know for sure that there aren't other pointers around -- e.g.
|
|
|
633 in a scrollbar instance. */
|
|
428
|
634 }
|
|
|
635 }
|
|
|
636
|
|
|
637 /* Given a mirror structure, return the window it mirrors. Calls
|
|
|
638 real_window_internal to do most of the work. */
|
|
|
639 Lisp_Object
|
|
|
640 real_window (struct window_mirror *mir, int no_abort)
|
|
|
641 {
|
|
617
|
642 Lisp_Object retval =
|
|
|
643 real_window_internal (mir->frame->root_window,
|
|
|
644 XWINDOW_MIRROR (mir->frame->root_mirror), mir);
|
|
428
|
645 if (NILP (retval) && !no_abort)
|
|
|
646 abort ();
|
|
|
647
|
|
|
648 return retval;
|
|
|
649 }
|
|
|
650
|
|
|
651 /* Given a real window, return its mirror structure. Calls
|
|
|
652 find_window_mirror_internal to do all of the work. */
|
|
|
653 struct window_mirror *
|
|
|
654 find_window_mirror (struct window *w)
|
|
|
655 {
|
|
|
656 struct frame *f = XFRAME (w->frame);
|
|
|
657 if (f->mirror_dirty)
|
|
|
658 update_frame_window_mirror (f);
|
|
617
|
659 return find_window_mirror_internal (f->root_window,
|
|
|
660 XWINDOW_MIRROR (f->root_mirror), w);
|
|
428
|
661 }
|
|
|
662
|
|
|
663 /*****************************************************************************
|
|
|
664 find_window_by_pixel_pos
|
|
|
665
|
|
|
666 Given a pixel position relative to a frame, find the window at that
|
|
|
667 position.
|
|
|
668 ****************************************************************************/
|
|
|
669 struct window *
|
|
|
670 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win)
|
|
|
671 {
|
|
|
672 if (NILP (win))
|
|
|
673 return 0;
|
|
|
674
|
|
|
675 for (; !NILP (win); win = XWINDOW (win)->next)
|
|
|
676 {
|
|
|
677 struct window *w;
|
|
|
678
|
|
|
679 if (!NILP (XWINDOW (win)->vchild))
|
|
|
680 {
|
|
|
681 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild);
|
|
|
682 if (w) return w;
|
|
|
683 }
|
|
|
684 if (!NILP (XWINDOW (win)->hchild))
|
|
|
685 {
|
|
|
686 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild);
|
|
|
687 if (w) return w;
|
|
|
688 }
|
|
|
689 w = XWINDOW (win);
|
|
|
690 if (pix_x >= WINDOW_LEFT (w)
|
|
|
691 && pix_x <= WINDOW_RIGHT (w)
|
|
|
692 && pix_y >= WINDOW_TOP (w)
|
|
|
693 && pix_y <= WINDOW_BOTTOM (w))
|
|
|
694 return w;
|
|
|
695 }
|
|
|
696 return NULL;
|
|
|
697 }
|
|
|
698
|
|
|
699 /* Return a pointer to the display structures for the given window. */
|
|
|
700 display_line_dynarr *
|
|
|
701 window_display_lines (struct window *w, int which)
|
|
|
702 {
|
|
|
703 struct window_mirror *t;
|
|
|
704
|
|
|
705 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
706 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
707 t = find_window_mirror (w);
|
|
|
708 if (!t)
|
|
|
709 abort ();
|
|
|
710
|
|
|
711 if (which == CURRENT_DISP)
|
|
|
712 return t->current_display_lines;
|
|
|
713 else if (which == DESIRED_DISP)
|
|
|
714 return t->desired_display_lines;
|
|
|
715 else if (which == CMOTION_DISP)
|
|
|
716 /* The CMOTION_DISP display lines are global. */
|
|
|
717 return cmotion_display_lines;
|
|
|
718 else
|
|
|
719 abort ();
|
|
|
720
|
|
|
721 return 0; /* shut up compiler */
|
|
|
722 }
|
|
|
723
|
|
|
724 struct buffer *
|
|
|
725 window_display_buffer (struct window *w)
|
|
|
726 {
|
|
|
727 struct window_mirror *t;
|
|
|
728
|
|
|
729 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
730 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
731 t = find_window_mirror (w);
|
|
|
732 if (!t)
|
|
|
733 abort ();
|
|
|
734
|
|
|
735 return t->buffer;
|
|
|
736 }
|
|
|
737
|
|
|
738 void
|
|
|
739 set_window_display_buffer (struct window *w, struct buffer *b)
|
|
|
740 {
|
|
|
741 struct window_mirror *t;
|
|
|
742
|
|
|
743 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
744 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
745 t = find_window_mirror (w);
|
|
|
746 if (!t)
|
|
|
747 abort ();
|
|
|
748
|
|
|
749 t->buffer = b;
|
|
|
750 }
|
|
|
751
|
|
|
752
|
|
|
753 /* Determining a window's position based solely on its pixel
|
|
|
754 positioning doesn't work. Instead, we do it the intelligent way,
|
|
|
755 by checking its positioning in the window hierarchy. */
|
|
|
756 int
|
|
|
757 window_is_leftmost (struct window *w)
|
|
|
758 {
|
|
|
759 Lisp_Object parent, current_ancestor, window;
|
|
|
760
|
|
793
|
761 window = wrap_window (w);
|
|
428
|
762
|
|
|
763 parent = XWINDOW (window)->parent;
|
|
|
764 current_ancestor = window;
|
|
|
765
|
|
|
766 while (!NILP (parent))
|
|
|
767 {
|
|
|
768 if (!NILP (XWINDOW (parent)->hchild) &&
|
|
|
769 !EQ (XWINDOW (parent)->hchild, current_ancestor))
|
|
|
770 return 0;
|
|
|
771
|
|
|
772 current_ancestor = parent;
|
|
|
773 parent = XWINDOW (parent)->parent;
|
|
|
774 }
|
|
|
775
|
|
|
776 return 1;
|
|
|
777 }
|
|
|
778
|
|
|
779 int
|
|
|
780 window_is_rightmost (struct window *w)
|
|
|
781 {
|
|
|
782 Lisp_Object parent, current_ancestor, window;
|
|
|
783
|
|
793
|
784 window = wrap_window (w);
|
|
428
|
785
|
|
|
786 parent = XWINDOW (window)->parent;
|
|
|
787 current_ancestor = window;
|
|
|
788
|
|
|
789 while (!NILP (parent))
|
|
|
790 {
|
|
|
791 if (!NILP (XWINDOW (parent)->hchild)
|
|
|
792 && !NILP (XWINDOW (current_ancestor)->next))
|
|
|
793 return 0;
|
|
|
794
|
|
|
795 current_ancestor = parent;
|
|
|
796 parent = XWINDOW (parent)->parent;
|
|
|
797 }
|
|
|
798
|
|
|
799 return 1;
|
|
|
800 }
|
|
|
801
|
|
|
802 static int
|
|
|
803 window_full_width_p (struct window *w)
|
|
|
804 {
|
|
|
805 return window_is_leftmost (w) && window_is_rightmost (w);
|
|
|
806 }
|
|
|
807
|
|
|
808 int
|
|
|
809 window_is_highest (struct window *w)
|
|
|
810 {
|
|
|
811 Lisp_Object parent, current_ancestor, window;
|
|
|
812
|
|
793
|
813 window = wrap_window (w);
|
|
428
|
814
|
|
|
815 parent = XWINDOW (window)->parent;
|
|
|
816 current_ancestor = window;
|
|
|
817
|
|
|
818 while (!NILP (parent))
|
|
|
819 {
|
|
|
820 if (!NILP (XWINDOW (parent)->vchild) &&
|
|
|
821 !EQ (XWINDOW (parent)->vchild, current_ancestor))
|
|
|
822 return 0;
|
|
|
823
|
|
|
824 current_ancestor = parent;
|
|
|
825 parent = XWINDOW (parent)->parent;
|
|
|
826 }
|
|
|
827
|
|
|
828 /* This is really to catch the minibuffer but we make it generic in
|
|
|
829 case we ever change things around to let the minibuffer be on top. */
|
|
|
830 if (NILP (XWINDOW (current_ancestor)->prev))
|
|
|
831 return 1;
|
|
|
832 else
|
|
|
833 return 0;
|
|
|
834 }
|
|
|
835
|
|
|
836 int
|
|
|
837 window_is_lowest (struct window *w)
|
|
|
838 {
|
|
|
839 Lisp_Object parent, current_ancestor, window;
|
|
|
840
|
|
793
|
841 window = wrap_window (w);
|
|
428
|
842
|
|
|
843 parent = XWINDOW (window)->parent;
|
|
|
844 current_ancestor = window;
|
|
|
845
|
|
|
846 while (!NILP (parent))
|
|
|
847 {
|
|
|
848 if (!NILP (XWINDOW (parent)->vchild)
|
|
|
849 && !NILP (XWINDOW (current_ancestor)->next))
|
|
|
850 return 0;
|
|
|
851
|
|
|
852 current_ancestor = parent;
|
|
|
853 parent = XWINDOW (parent)->parent;
|
|
|
854 }
|
|
|
855
|
|
|
856 return 1;
|
|
|
857 }
|
|
|
858
|
|
|
859 #if 0 /* not currently used */
|
|
|
860
|
|
|
861 static int
|
|
|
862 window_full_height_p (struct window *w)
|
|
|
863 {
|
|
|
864 return window_is_highest (w) && window_is_lowest (w);
|
|
|
865 }
|
|
|
866
|
|
|
867 #endif
|
|
|
868
|
|
|
869 int
|
|
|
870 window_truncation_on (struct window *w)
|
|
|
871 {
|
|
|
872 /* Minibuffer windows are never truncated.
|
|
440
|
873 #### is this the right way ? */
|
|
428
|
874 if (MINI_WINDOW_P (w))
|
|
|
875 return 0;
|
|
|
876
|
|
|
877 /* Horizontally scrolled windows are truncated. */
|
|
|
878 if (w->hscroll)
|
|
|
879 return 1;
|
|
|
880
|
|
|
881 /* If truncate_partial_width_windows is true and the window is not
|
|
|
882 the full width of the frame it is truncated. */
|
|
707
|
883 if (!NILP (symbol_value_in_buffer (Qtruncate_partial_width_windows,
|
|
|
884 w->buffer))
|
|
428
|
885 && !(window_is_leftmost (w) && window_is_rightmost (w)))
|
|
|
886 return 1;
|
|
|
887
|
|
|
888 /* If the window's buffer's value of truncate_lines is non-nil, then
|
|
|
889 the window is truncated. */
|
|
|
890 if (!NILP (XBUFFER (w->buffer)->truncate_lines))
|
|
|
891 return 1;
|
|
|
892
|
|
|
893 return 0;
|
|
|
894 }
|
|
|
895
|
|
|
896 DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /*
|
|
442
|
897 Returns non-nil if text in the window is truncated.
|
|
428
|
898 */
|
|
|
899 (window))
|
|
|
900 {
|
|
|
901 struct window *w = decode_window (window);
|
|
|
902
|
|
|
903 return window_truncation_on (w) ? Qt : Qnil;
|
|
|
904 }
|
|
|
905
|
|
|
906
|
|
|
907 static int
|
|
|
908 have_undivided_common_edge (struct window *w_right, void *closure)
|
|
|
909 {
|
|
|
910 struct window *w_left = (struct window *) closure;
|
|
|
911 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right)
|
|
|
912 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right)
|
|
|
913 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left)
|
|
|
914 #ifdef HAVE_SCROLLBARS
|
|
|
915 && (NILP (w_right->scrollbar_on_left_p)
|
|
|
916 || NILP (w_right->vertical_scrollbar_visible_p)
|
|
|
917 || ZEROP (w_right->scrollbar_width))
|
|
|
918 #endif
|
|
|
919 );
|
|
|
920 }
|
|
|
921
|
|
|
922 static int
|
|
|
923 window_needs_vertical_divider_1 (struct window *w)
|
|
|
924 {
|
|
|
925 /* Never if we're on the right */
|
|
|
926 if (window_is_rightmost (w))
|
|
|
927 return 0;
|
|
|
928
|
|
|
929 /* Always if draggable */
|
|
|
930 if (!NILP (w->vertical_divider_always_visible_p))
|
|
|
931 return 1;
|
|
|
932
|
|
|
933 #ifdef HAVE_SCROLLBARS
|
|
|
934 /* Our right scrollbar is enough to separate us at the right */
|
|
|
935 if (NILP (w->scrollbar_on_left_p)
|
|
|
936 && !NILP (w->vertical_scrollbar_visible_p)
|
|
|
937 && !ZEROP (w->scrollbar_width))
|
|
|
938 return 0;
|
|
|
939 #endif
|
|
|
940
|
|
|
941 /* Ok. to determine whether we need a divider on the left, we must
|
|
|
942 check that our right neighbor windows have scrollbars on their
|
|
|
943 left sides. We must check all such windows which have common
|
|
|
944 left edge with our window's right edge. */
|
|
|
945 return map_windows (XFRAME (WINDOW_FRAME (w)),
|
|
|
946 have_undivided_common_edge, (void*)w);
|
|
|
947 }
|
|
|
948
|
|
|
949 int
|
|
|
950 window_needs_vertical_divider (struct window *w)
|
|
|
951 {
|
|
|
952 if (!w->need_vertical_divider_valid_p)
|
|
|
953 {
|
|
|
954 w->need_vertical_divider_p =
|
|
|
955 window_needs_vertical_divider_1 (w);
|
|
|
956 w->need_vertical_divider_valid_p = 1;
|
|
|
957 }
|
|
|
958 return w->need_vertical_divider_p;
|
|
|
959 }
|
|
|
960
|
|
|
961 /* Called from invalidate_vertical_divider_cache_in_frame */
|
|
|
962 int
|
|
|
963 invalidate_vertical_divider_cache_in_window (struct window *w,
|
|
2286
|
964 void *UNUSED (unused))
|
|
428
|
965 {
|
|
|
966 w->need_vertical_divider_valid_p = 0;
|
|
|
967 return 0;
|
|
|
968 }
|
|
|
969
|
|
|
970 /* Calculate width of vertical divider, including its shadows
|
|
|
971 and spacing. The returned value is effectively the distance
|
|
|
972 between adjacent window edges. This function does not check
|
|
|
973 whether a window needs a vertical divider, so the returned
|
|
|
974 value is a "theoretical" one */
|
|
|
975 int
|
|
|
976 window_divider_width (struct window *w)
|
|
|
977 {
|
|
|
978 /* the shadow thickness can be negative. This means that the divider
|
|
|
979 will have a depressed look */
|
|
|
980
|
|
|
981 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w))))
|
|
|
982 return
|
|
|
983 XINT (w->vertical_divider_line_width)
|
|
|
984 + 2 * XINT (w->vertical_divider_spacing)
|
|
|
985 + 2 * abs (XINT (w->vertical_divider_shadow_thickness));
|
|
|
986 else
|
|
|
987 return XINT (w->vertical_divider_line_width) == 0 ? 0 : 1;
|
|
|
988 }
|
|
|
989
|
|
|
990 int
|
|
|
991 window_scrollbar_width (struct window *w)
|
|
|
992 {
|
|
|
993 #ifdef HAVE_SCROLLBARS
|
|
|
994 if (!WINDOW_WIN_P (w)
|
|
|
995 || MINI_WINDOW_P (w)
|
|
|
996 || NILP (w->buffer)
|
|
|
997 || NILP (w->vertical_scrollbar_visible_p))
|
|
|
998 /* #### when does NILP (w->buffer) happen? */
|
|
|
999 return 0;
|
|
|
1000
|
|
|
1001 return XINT (w->scrollbar_width);
|
|
|
1002 #else
|
|
|
1003 return 0;
|
|
|
1004 #endif /* HAVE_SCROLLBARS */
|
|
|
1005 }
|
|
|
1006
|
|
|
1007 /* Horizontal scrollbars are only active on windows with truncation
|
|
|
1008 turned on. */
|
|
|
1009 int
|
|
|
1010 window_scrollbar_height (struct window *w)
|
|
|
1011 {
|
|
|
1012 #ifdef HAVE_SCROLLBARS
|
|
|
1013 if (!WINDOW_WIN_P (w)
|
|
|
1014 || MINI_WINDOW_P (w)
|
|
|
1015 || NILP (w->buffer)
|
|
|
1016 || NILP (w->horizontal_scrollbar_visible_p)
|
|
|
1017 || !window_truncation_on (w))
|
|
|
1018 return 0;
|
|
|
1019
|
|
|
1020 return XINT (w->scrollbar_height);
|
|
|
1021 #else
|
|
|
1022 return 0;
|
|
|
1023 #endif /* HAVE_SCROLLBARS */
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 int
|
|
|
1027 window_modeline_height (struct window *w)
|
|
|
1028 {
|
|
|
1029 struct frame *f = XFRAME (w->frame);
|
|
|
1030 int modeline_height;
|
|
|
1031
|
|
|
1032 if (MINI_WINDOW_P (w) || NILP (w->buffer))
|
|
|
1033 {
|
|
|
1034 modeline_height = 0;
|
|
|
1035 }
|
|
|
1036 else if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
1037 {
|
|
|
1038 if (window_scrollbar_height (w))
|
|
|
1039 modeline_height = 0;
|
|
|
1040 else
|
|
|
1041 {
|
|
|
1042 modeline_height = FRAMEMETH (f, divider_height, ());
|
|
|
1043
|
|
|
1044 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
1045 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
1046 }
|
|
|
1047 }
|
|
|
1048 else
|
|
|
1049 {
|
|
|
1050 if (noninteractive)
|
|
|
1051 modeline_height = 0;
|
|
|
1052 else
|
|
|
1053 {
|
|
|
1054 display_line_dynarr *dla;
|
|
|
1055
|
|
|
1056 /* We don't force a regeneration of the modeline here.
|
|
|
1057 Instead it is now a precondition that any function calling
|
|
|
1058 this should make sure that one of these structures is
|
|
|
1059 up-to-date. In practice this only affects two internal
|
|
|
1060 redisplay functions, regenerate_window and
|
|
|
1061 regenerate_window_point_center. */
|
|
|
1062 /* We check DESIRED_DISP because if it is valid it is more
|
|
|
1063 up-to-date than CURRENT_DISP. For calls to this outside
|
|
|
1064 of redisplay it doesn't matter which structure we check
|
|
|
1065 since there is a redisplay condition that these
|
|
|
1066 structures be identical outside of redisplay. */
|
|
|
1067 dla = window_display_lines (w, DESIRED_DISP);
|
|
|
1068 if (dla && Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
1069 modeline_height = (Dynarr_atp (dla, 0)->ascent +
|
|
|
1070 Dynarr_atp (dla, 0)->descent);
|
|
|
1071 else
|
|
|
1072 {
|
|
|
1073 dla = window_display_lines (w, CURRENT_DISP);
|
|
|
1074 if (dla && Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
1075 modeline_height = (Dynarr_atp (dla, 0)->ascent +
|
|
|
1076 Dynarr_atp (dla, 0)->descent);
|
|
|
1077 else
|
|
|
1078 /* This should be an abort except I'm not yet 100%
|
|
|
1079 confident that it won't ever get hit (though I
|
|
|
1080 haven't been able to trigger it). It is extremely
|
|
|
1081 unlikely to cause any noticeable problem and even if
|
|
|
1082 it does it will be a minor display glitch. */
|
|
|
1083 /* #### Bullshit alert. It does get hit and it causes
|
|
|
1084 noticeable glitches. real_current_modeline_height
|
|
|
1085 is a kludge to fix this for 19.14. */
|
|
|
1086 modeline_height = real_current_modeline_height (w);
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
1090 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
1091 }
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 return modeline_height;
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 /*****************************************************************************
|
|
|
1098 margin_width_internal
|
|
|
1099
|
|
|
1100 For a given window, return the width in pixels of the specified margin.
|
|
|
1101 ****************************************************************************/
|
|
|
1102 static int
|
|
|
1103 margin_width_internal (struct window *w, int left_margin)
|
|
|
1104 {
|
|
|
1105 int window_cwidth = window_char_width (w, 1);
|
|
|
1106 int margin_cwidth;
|
|
|
1107 int font_width;
|
|
|
1108 Lisp_Object window;
|
|
|
1109
|
|
|
1110 /* We might be getting called on a non-leaf. */
|
|
|
1111 if (NILP (w->buffer))
|
|
|
1112 return 0;
|
|
|
1113
|
|
|
1114 /* The minibuffer never has margins. */
|
|
|
1115 if (MINI_WINDOW_P (w))
|
|
|
1116 return 0;
|
|
|
1117
|
|
793
|
1118 window = wrap_window (w);
|
|
428
|
1119 margin_cwidth = (left_margin ? XINT (w->left_margin_width) :
|
|
|
1120 XINT (w->right_margin_width));
|
|
|
1121
|
|
|
1122 default_face_height_and_width (window, 0, &font_width);
|
|
|
1123
|
|
|
1124 /* The left margin takes precedence over the right margin so we
|
|
|
1125 subtract its width from the space available for the right
|
|
|
1126 margin. */
|
|
|
1127 if (!left_margin)
|
|
|
1128 window_cwidth -= XINT (w->left_margin_width);
|
|
|
1129
|
|
|
1130 /* The margin cannot be wider than the window is. We allow the
|
|
|
1131 value to be bigger since it is possible for the user to enlarge
|
|
|
1132 the window such that the left margin value would no longer be too
|
|
|
1133 big, but we won't return a value that is larger. */
|
|
|
1134 if (margin_cwidth > window_cwidth)
|
|
|
1135 margin_cwidth = window_cwidth;
|
|
|
1136
|
|
|
1137 /* At the user level the margin is always specified in characters.
|
|
|
1138 Internally however it is manipulated in terms of pixels. */
|
|
|
1139 return margin_cwidth * font_width;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142 int
|
|
|
1143 window_left_margin_width (struct window *w)
|
|
|
1144 {
|
|
|
1145 return margin_width_internal (w, 1);
|
|
|
1146 }
|
|
|
1147
|
|
|
1148 int
|
|
|
1149 window_right_margin_width (struct window *w)
|
|
|
1150 {
|
|
|
1151 return margin_width_internal (w, 0);
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 /*****************************************************************************
|
|
|
1155 Window Gutters
|
|
|
1156
|
|
|
1157 The gutters of a window are those areas in the boundary defined by
|
|
|
1158 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which
|
|
|
1159 do not contain text. Items which may be in the gutters include
|
|
|
1160 scrollbars, toolbars and modelines. The margin areas are not
|
|
|
1161 included. This is an exception made because redisplay special cases
|
|
|
1162 the handling of those areas in many places in such a way that
|
|
|
1163 including them in the gutter area would make life difficult.
|
|
|
1164
|
|
|
1165 The size functions refer to height for the bottom and top gutters and
|
|
|
1166 width for the left and right gutters. The starting position
|
|
|
1167 functions refer to the Y coord for bottom and top gutters and the X
|
|
|
1168 coord for left and right gutters. All starting positions are
|
|
|
1169 relative to the frame, not the window.
|
|
|
1170 ****************************************************************************/
|
|
|
1171
|
|
442
|
1172 static int
|
|
|
1173 window_top_window_gutter_height (struct window *w)
|
|
|
1174 {
|
|
428
|
1175 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1176 return 0;
|
|
|
1177
|
|
|
1178 #ifdef HAVE_SCROLLBARS
|
|
|
1179 if (!NILP (w->scrollbar_on_top_p))
|
|
442
|
1180 return window_scrollbar_height (w);
|
|
428
|
1181 else
|
|
|
1182 #endif
|
|
442
|
1183 return 0;
|
|
428
|
1184 }
|
|
|
1185
|
|
|
1186 int
|
|
442
|
1187 window_top_gutter_height (struct window *w)
|
|
|
1188 {
|
|
|
1189 return window_top_window_gutter_height (w);
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 static int
|
|
|
1193 window_bottom_window_gutter_height (struct window *w)
|
|
|
1194 {
|
|
|
1195 int gutter;
|
|
428
|
1196
|
|
|
1197 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1198 return 0;
|
|
|
1199
|
|
442
|
1200 gutter = window_modeline_height (w);
|
|
428
|
1201
|
|
|
1202 #ifdef HAVE_SCROLLBARS
|
|
|
1203 if (NILP (w->scrollbar_on_top_p))
|
|
|
1204 return window_scrollbar_height (w) + gutter;
|
|
|
1205 else
|
|
|
1206 #endif
|
|
|
1207 return gutter;
|
|
|
1208 }
|
|
|
1209
|
|
|
1210 int
|
|
442
|
1211 window_bottom_gutter_height (struct window *w)
|
|
|
1212 {
|
|
|
1213 return window_bottom_window_gutter_height (w);
|
|
|
1214 }
|
|
|
1215
|
|
|
1216 static int
|
|
|
1217 window_left_window_gutter_width (struct window *w, int modeline)
|
|
|
1218 {
|
|
428
|
1219 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1220 return 0;
|
|
|
1221
|
|
|
1222 #ifdef HAVE_SCROLLBARS
|
|
|
1223 if (!modeline && !NILP (w->scrollbar_on_left_p))
|
|
442
|
1224 return window_scrollbar_width (w);
|
|
428
|
1225 #endif
|
|
|
1226
|
|
442
|
1227 return 0;
|
|
428
|
1228 }
|
|
|
1229
|
|
|
1230 int
|
|
442
|
1231 window_left_gutter_width (struct window *w, int modeline)
|
|
|
1232 {
|
|
|
1233 return window_left_window_gutter_width (w, modeline);
|
|
|
1234 }
|
|
|
1235
|
|
|
1236 static int
|
|
|
1237 window_right_window_gutter_width (struct window *w, int modeline)
|
|
|
1238 {
|
|
|
1239 int gutter = 0;
|
|
428
|
1240
|
|
|
1241 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1242 return 0;
|
|
|
1243
|
|
|
1244 #ifdef HAVE_SCROLLBARS
|
|
|
1245 if (!modeline && NILP (w->scrollbar_on_left_p))
|
|
|
1246 gutter += window_scrollbar_width (w);
|
|
|
1247 #endif
|
|
|
1248
|
|
|
1249 if (window_needs_vertical_divider (w))
|
|
|
1250 gutter += window_divider_width (w);
|
|
|
1251
|
|
|
1252 return gutter;
|
|
|
1253 }
|
|
|
1254
|
|
442
|
1255 int
|
|
|
1256 window_right_gutter_width (struct window *w, int modeline)
|
|
|
1257 {
|
|
|
1258 return window_right_window_gutter_width (w, modeline);
|
|
|
1259 }
|
|
|
1260
|
|
|
1261 static int
|
|
|
1262 window_pixel_height (struct window* w)
|
|
|
1263 {
|
|
|
1264 return WINDOW_HEIGHT (w);
|
|
|
1265 }
|
|
|
1266
|
|
428
|
1267
|
|
|
1268 DEFUN ("windowp", Fwindowp, 1, 1, 0, /*
|
|
444
|
1269 Return t if OBJECT is a window.
|
|
428
|
1270 */
|
|
444
|
1271 (object))
|
|
|
1272 {
|
|
|
1273 return WINDOWP (object) ? Qt : Qnil;
|
|
428
|
1274 }
|
|
|
1275
|
|
|
1276 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /*
|
|
444
|
1277 Return t if OBJECT is a window which is currently visible.
|
|
428
|
1278 */
|
|
444
|
1279 (object))
|
|
|
1280 {
|
|
|
1281 return WINDOWP (object) && WINDOW_LIVE_P (XWINDOW (object))
|
|
|
1282 ? Qt : Qnil;
|
|
428
|
1283 }
|
|
|
1284
|
|
|
1285 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /*
|
|
|
1286 Return the window that the cursor now appears in and commands apply to.
|
|
|
1287 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return
|
|
|
1288 the selected window used by that frame. If CON-DEV-OR-FRAME is a device,
|
|
|
1289 then the selected frame on that device will be used. If CON-DEV-OR-FRAME
|
|
|
1290 is a console, the selected frame on that console's selected device will
|
|
|
1291 be used. Otherwise, the selected frame is used.
|
|
|
1292 */
|
|
|
1293 (con_dev_or_frame))
|
|
|
1294 {
|
|
|
1295 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil)))
|
|
|
1296 return Qnil; /* happens at startup */
|
|
|
1297
|
|
|
1298 {
|
|
|
1299 struct frame *f = decode_frame_or_selected (con_dev_or_frame);
|
|
|
1300 return FRAME_SELECTED_WINDOW (f);
|
|
|
1301 }
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /*
|
|
|
1305 Return the last selected window that is not a minibuffer window.
|
|
|
1306 If the optional argument CON-DEV-OR-FRAME is specified and is a frame,
|
|
|
1307 return the last non-minibuffer window used by that frame. If
|
|
|
1308 CON-DEV-OR-FRAME is a device, then the selected frame on that device
|
|
|
1309 will be used. If CON-DEV-OR-FRAME is a console, the selected frame on
|
|
|
1310 that console's selected device will be used. Otherwise, the selected
|
|
|
1311 frame is used.
|
|
|
1312 */
|
|
|
1313 (con_dev_or_frame))
|
|
|
1314 {
|
|
|
1315 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil)))
|
|
|
1316 return Qnil; /* happens at startup */
|
|
|
1317
|
|
|
1318 {
|
|
|
1319 struct frame *f = decode_frame_or_selected (con_dev_or_frame);
|
|
|
1320 return FRAME_LAST_NONMINIBUF_WINDOW (f);
|
|
|
1321 }
|
|
|
1322 }
|
|
|
1323
|
|
|
1324 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /*
|
|
|
1325 Return the window used now for minibuffers.
|
|
|
1326 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return
|
|
|
1327 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device,
|
|
|
1328 then the selected frame on that device will be used. If CON-DEV-OR-FRAME
|
|
|
1329 is a console, the selected frame on that console's selected device will
|
|
|
1330 be used. Otherwise, the selected frame is used.
|
|
|
1331 */
|
|
|
1332 (con_dev_or_frame))
|
|
|
1333 {
|
|
|
1334 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame));
|
|
|
1335 }
|
|
|
1336
|
|
438
|
1337 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 0, 1, 0, /*
|
|
428
|
1338 Return non-nil if WINDOW is a minibuffer window.
|
|
|
1339 */
|
|
|
1340 (window))
|
|
|
1341 {
|
|
|
1342 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil;
|
|
|
1343 }
|
|
|
1344
|
|
|
1345 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /*
|
|
|
1346 Return the first horizontal child of WINDOW, or nil.
|
|
|
1347 */
|
|
|
1348 (window))
|
|
|
1349 {
|
|
|
1350 return decode_window (window)->hchild;
|
|
|
1351 }
|
|
|
1352
|
|
|
1353 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /*
|
|
|
1354 Return the first vertical child of WINDOW, or nil.
|
|
|
1355 */
|
|
|
1356 (window))
|
|
|
1357 {
|
|
|
1358 return decode_window (window)->vchild;
|
|
|
1359 }
|
|
|
1360
|
|
|
1361 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /*
|
|
|
1362 Return the next window on the same level as WINDOW, or nil.
|
|
|
1363 */
|
|
|
1364 (window))
|
|
|
1365 {
|
|
|
1366 return decode_window (window)->next;
|
|
|
1367 }
|
|
|
1368
|
|
|
1369 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /*
|
|
|
1370 Return the previous window on the same level as WINDOW, or nil.
|
|
|
1371 */
|
|
|
1372 (window))
|
|
|
1373 {
|
|
|
1374 return decode_window (window)->prev;
|
|
|
1375 }
|
|
|
1376
|
|
|
1377 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /*
|
|
|
1378 Return the parent of WINDOW, or nil.
|
|
|
1379 */
|
|
|
1380 (window))
|
|
|
1381 {
|
|
|
1382 return decode_window (window)->parent;
|
|
|
1383 }
|
|
|
1384
|
|
|
1385 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /*
|
|
|
1386 Return non-nil if WINDOW is along the bottom of its frame.
|
|
|
1387 */
|
|
|
1388 (window))
|
|
|
1389 {
|
|
|
1390 return window_is_lowest (decode_window (window)) ? Qt : Qnil;
|
|
|
1391 }
|
|
|
1392
|
|
|
1393 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /*
|
|
|
1394 Return non-nil if WINDOW is along the top of its frame.
|
|
|
1395 */
|
|
|
1396 (window))
|
|
|
1397 {
|
|
|
1398 return window_is_highest (decode_window (window)) ? Qt : Qnil;
|
|
|
1399 }
|
|
|
1400
|
|
|
1401 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /*
|
|
|
1402 Return non-nil if WINDOW is along the left edge of its frame.
|
|
|
1403 */
|
|
|
1404 (window))
|
|
|
1405 {
|
|
|
1406 return window_is_leftmost (decode_window (window)) ? Qt : Qnil;
|
|
|
1407 }
|
|
|
1408
|
|
|
1409 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /*
|
|
|
1410 Return non-nil if WINDOW is along the right edge of its frame.
|
|
|
1411 */
|
|
|
1412 (window))
|
|
|
1413 {
|
|
|
1414 return window_is_rightmost (decode_window (window)) ? Qt : Qnil;
|
|
|
1415 }
|
|
|
1416
|
|
1708
|
1417 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 3, 0, /*
|
|
|
1418 Returns t if position POS is currently on the frame in WINDOW.
|
|
428
|
1419 Returns nil if that position is scrolled vertically out of view.
|
|
1708
|
1420 If a character is only partially visible, nil is returned, unless the
|
|
|
1421 optional argument PARTIALLY is non-nil.
|
|
428
|
1422 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window.
|
|
|
1423 */
|
|
1708
|
1424 (pos, window, partially))
|
|
428
|
1425 {
|
|
|
1426 struct window *w = decode_window (window);
|
|
665
|
1427 Charbpos top = marker_position (w->start[CURRENT_DISP]);
|
|
|
1428 Charbpos posint;
|
|
428
|
1429 struct buffer *buf = XBUFFER (w->buffer);
|
|
|
1430
|
|
|
1431 if (NILP (pos))
|
|
|
1432 posint = BUF_PT (buf);
|
|
|
1433 else
|
|
|
1434 {
|
|
|
1435 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1436 posint = XINT (pos);
|
|
|
1437 }
|
|
|
1438
|
|
|
1439 if (posint < top || posint > BUF_ZV (buf))
|
|
|
1440 return Qnil;
|
|
|
1441
|
|
|
1442 /* w->start can be out of range. If it is, do something reasonable. */
|
|
|
1443 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf))
|
|
|
1444 return Qnil;
|
|
|
1445
|
|
1708
|
1446 return point_would_be_visible (w, top, posint, !NILP (partially))
|
|
|
1447 ? Qt : Qnil;
|
|
428
|
1448 }
|
|
|
1449
|
|
|
1450
|
|
|
1451 struct window *
|
|
|
1452 decode_window (Lisp_Object window)
|
|
|
1453 {
|
|
|
1454 if (NILP (window))
|
|
|
1455 return XWINDOW (Fselected_window (Qnil));
|
|
|
1456
|
|
|
1457 CHECK_LIVE_WINDOW (window);
|
|
|
1458 return XWINDOW (window);
|
|
|
1459 }
|
|
|
1460
|
|
872
|
1461 int
|
|
|
1462 window_live_p (struct window *w)
|
|
|
1463 {
|
|
|
1464 return WINDOW_LIVE_P (w);
|
|
|
1465 }
|
|
|
1466
|
|
|
1467 Lisp_Object
|
|
|
1468 window_frame (struct window *w)
|
|
|
1469 {
|
|
|
1470 return WINDOW_FRAME (w);
|
|
|
1471 }
|
|
|
1472
|
|
|
1473 Lisp_Object
|
|
|
1474 window_buffer (struct window *w)
|
|
|
1475 {
|
|
|
1476 return WINDOW_BUFFER (w);
|
|
|
1477 }
|
|
|
1478
|
|
428
|
1479 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /*
|
|
|
1480 Return the buffer that WINDOW is displaying.
|
|
|
1481 */
|
|
|
1482 (window))
|
|
|
1483 {
|
|
|
1484 return decode_window (window)->buffer;
|
|
|
1485 }
|
|
|
1486
|
|
|
1487 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /*
|
|
|
1488 Return the frame that window WINDOW is on.
|
|
|
1489 */
|
|
|
1490 (window))
|
|
|
1491 {
|
|
|
1492 return decode_window (window)->frame;
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /*
|
|
|
1496 Return the number of default lines in WINDOW.
|
|
|
1497 This actually works by dividing the window's pixel height (including
|
|
|
1498 the modeline and horizontal scrollbar, if any) by the height of the
|
|
|
1499 default font; therefore, the number of displayed lines will probably
|
|
|
1500 be different.
|
|
|
1501 Use `window-height' to get consistent results in geometry calculations.
|
|
|
1502 Use `window-displayed-height' to get the actual number of lines
|
|
|
1503 currently displayed in a window.
|
|
442
|
1504
|
|
|
1505 The names are somewhat confusing; here's a table to help out:
|
|
|
1506
|
|
|
1507 width height
|
|
|
1508 -------------------------------------------------------------------------
|
|
|
1509 w/o gutters
|
|
|
1510 (rows/columns) window-width window-text-area-height
|
|
|
1511 (pixels) window-text-area-pixel-width window-text-area-pixel-height
|
|
|
1512
|
|
|
1513 with gutters
|
|
|
1514 (rows/columns) window-full-width window-height
|
|
|
1515 (pixels) window-pixel-width window-pixel-height
|
|
|
1516
|
|
|
1517 actually displayed
|
|
|
1518 (rows/columns) ---- window-displayed-height
|
|
|
1519 (pixels) ---- window-displayed-text-pixel-height
|
|
428
|
1520 */
|
|
|
1521 (window))
|
|
|
1522 {
|
|
|
1523 return make_int (window_char_height (decode_window (window), 1));
|
|
|
1524 }
|
|
|
1525
|
|
|
1526 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /*
|
|
|
1527 Return the number of lines currently displayed in WINDOW.
|
|
|
1528 This counts the actual number of lines displayed in WINDOW
|
|
|
1529 \(as opposed to `window-height'). The modeline and horizontal
|
|
|
1530 scrollbar do not count as lines. If there is some blank space
|
|
|
1531 between the end of the buffer and the end of the window, this
|
|
|
1532 function pretends that there are lines of text in the default
|
|
|
1533 font there.
|
|
|
1534 */
|
|
|
1535 (window))
|
|
|
1536 {
|
|
|
1537 return make_int (window_displayed_height (decode_window (window)));
|
|
|
1538 }
|
|
|
1539
|
|
|
1540 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /*
|
|
|
1541 Return the height of WINDOW in pixels. Defaults to current window.
|
|
|
1542 This includes the window's modeline and horizontal scrollbar (if any).
|
|
|
1543 */
|
|
|
1544 (window))
|
|
|
1545 {
|
|
442
|
1546 return make_int (window_pixel_height (decode_window (window)));
|
|
|
1547 }
|
|
|
1548
|
|
|
1549 DEFUN ("window-text-area-height", Fwindow_text_area_height, 0, 1, 0, /*
|
|
|
1550 Return the number of default lines in the text area of WINDOW.
|
|
|
1551 This actually works by dividing the window's text area pixel height (i.e.
|
|
|
1552 excluding the modeline and horizontal scrollbar, if any) by the height of the
|
|
|
1553 default font; therefore, the number of displayed lines will probably
|
|
|
1554 be different.
|
|
|
1555 See also `window-height' and `window-displayed-height'.
|
|
|
1556 */
|
|
|
1557 (window))
|
|
|
1558 {
|
|
|
1559 return make_int (window_char_height (decode_window (window), 0));
|
|
428
|
1560 }
|
|
|
1561
|
|
|
1562 DEFUN ("window-text-area-pixel-height",
|
|
|
1563 Fwindow_text_area_pixel_height, 0, 1, 0, /*
|
|
|
1564 Return the height in pixels of the text-displaying portion of WINDOW.
|
|
|
1565 Unlike `window-pixel-height', the space occupied by the modeline and
|
|
|
1566 horizontal scrollbar, if any, is not counted.
|
|
|
1567 */
|
|
|
1568 (window))
|
|
|
1569 {
|
|
|
1570 struct window *w = decode_window (window);
|
|
|
1571
|
|
|
1572 return make_int (WINDOW_TEXT_HEIGHT (w));
|
|
|
1573 }
|
|
|
1574
|
|
|
1575 DEFUN ("window-displayed-text-pixel-height",
|
|
|
1576 Fwindow_displayed_text_pixel_height, 0, 2, 0, /*
|
|
|
1577 Return the height in pixels of the text displayed in WINDOW.
|
|
|
1578 Unlike `window-text-area-pixel-height', any blank space below the
|
|
|
1579 end of the buffer is not included. If optional argument NOCLIPPED
|
|
|
1580 is non-nil, do not include space occupied by clipped lines.
|
|
|
1581 */
|
|
|
1582 (window, noclipped))
|
|
|
1583 {
|
|
|
1584 struct window *w;
|
|
665
|
1585 Charbpos start, eobuf;
|
|
428
|
1586 int defheight;
|
|
|
1587 int hlimit, height, prev_height = -1;
|
|
|
1588 int line;
|
|
|
1589 int elt, nelt, i;
|
|
|
1590 int needed;
|
|
|
1591 line_start_cache_dynarr *cache;
|
|
|
1592
|
|
|
1593 if (NILP (window))
|
|
|
1594 window = Fselected_window (Qnil);
|
|
|
1595
|
|
|
1596 CHECK_LIVE_WINDOW (window);
|
|
|
1597 w = XWINDOW (window);
|
|
|
1598
|
|
|
1599 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
1600 hlimit = WINDOW_TEXT_HEIGHT (w);
|
|
|
1601 eobuf = BUF_ZV (XBUFFER (w->buffer));
|
|
|
1602
|
|
|
1603 default_face_height_and_width (window, &defheight, NULL);
|
|
|
1604
|
|
|
1605 /* guess lines needed in line start cache + a few extra */
|
|
|
1606 needed = (hlimit + defheight-1) / defheight + 3;
|
|
|
1607
|
|
|
1608 while (1) {
|
|
|
1609 elt = point_in_line_start_cache (w, start, needed);
|
|
|
1610 assert (elt >= 0); /* in the cache */
|
|
|
1611
|
|
|
1612 cache = w->line_start_cache;
|
|
|
1613 nelt = Dynarr_length (cache);
|
|
|
1614
|
|
|
1615 height = 0;
|
|
|
1616 for (i = elt; i < nelt; i++) {
|
|
|
1617 line = Dynarr_atp (cache, i)->height;
|
|
|
1618
|
|
|
1619 if (height + line > hlimit)
|
|
|
1620 return make_int (!NILP (noclipped) ? height : hlimit);
|
|
|
1621
|
|
|
1622 height += line;
|
|
|
1623
|
|
|
1624 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf)
|
|
|
1625 return make_int (height);
|
|
|
1626 }
|
|
|
1627
|
|
|
1628 /* get here => need more cache lines. try again. */
|
|
|
1629 assert(height > prev_height); /* progress? */
|
|
|
1630 prev_height = height;
|
|
|
1631
|
|
|
1632 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3;
|
|
|
1633 }
|
|
|
1634
|
|
1204
|
1635 RETURN_NOT_REACHED(make_int (0)); /* shut up compiler */
|
|
428
|
1636 }
|
|
|
1637
|
|
|
1638 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /*
|
|
|
1639 Return the number of display columns in WINDOW.
|
|
442
|
1640 This is the width that is usable columns available for text in WINDOW,
|
|
|
1641 and does not include vertical scrollbars, dividers, or the like. See also
|
|
|
1642 `window-full-width' and `window-height'.
|
|
428
|
1643 */
|
|
|
1644 (window))
|
|
|
1645 {
|
|
|
1646 return make_int (window_char_width (decode_window (window), 0));
|
|
|
1647 }
|
|
|
1648
|
|
442
|
1649 DEFUN ("window-full-width", Fwindow_full_width, 0, 1, 0, /*
|
|
|
1650 Return the total number of columns in WINDOW.
|
|
|
1651 This is like `window-width' but includes vertical scrollbars, dividers,
|
|
|
1652 etc.
|
|
|
1653 */
|
|
|
1654 (window))
|
|
|
1655 {
|
|
|
1656 return make_int (window_char_width (decode_window (window), 1));
|
|
|
1657 }
|
|
|
1658
|
|
428
|
1659 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /*
|
|
|
1660 Return the width of WINDOW in pixels. Defaults to current window.
|
|
|
1661 */
|
|
|
1662 (window))
|
|
|
1663 {
|
|
|
1664 return make_int (decode_window (window)->pixel_width);
|
|
|
1665 }
|
|
|
1666
|
|
|
1667 DEFUN ("window-text-area-pixel-width",
|
|
|
1668 Fwindow_text_area_pixel_width, 0, 1, 0, /*
|
|
|
1669 Return the width in pixels of the text-displaying portion of WINDOW.
|
|
|
1670 Unlike `window-pixel-width', the space occupied by the vertical
|
|
|
1671 scrollbar or divider, if any, is not counted.
|
|
|
1672 */
|
|
|
1673 (window))
|
|
|
1674 {
|
|
|
1675 struct window *w = decode_window (window);
|
|
|
1676
|
|
|
1677 return make_int (WINDOW_TEXT_WIDTH (w));
|
|
|
1678 }
|
|
|
1679
|
|
|
1680 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /*
|
|
|
1681 Return the number of columns by which WINDOW is scrolled from left margin.
|
|
|
1682 */
|
|
|
1683 (window))
|
|
|
1684 {
|
|
|
1685 return make_int (decode_window (window)->hscroll);
|
|
|
1686 }
|
|
|
1687
|
|
|
1688 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /*
|
|
442
|
1689 Return the horizontal scrolling amount of WINDOW's modeline.
|
|
438
|
1690 If the window has no modeline, return nil.
|
|
428
|
1691 */
|
|
|
1692 (window))
|
|
|
1693 {
|
|
|
1694 struct window *w = decode_window (window);
|
|
|
1695
|
|
438
|
1696 return (WINDOW_HAS_MODELINE_P (w)) ? make_int ((int) w->modeline_hscroll) :
|
|
|
1697 Qnil;
|
|
428
|
1698 }
|
|
|
1699
|
|
|
1700 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /*
|
|
442
|
1701 Set the horizontal scrolling amount of WINDOW's modeline to NCOL.
|
|
438
|
1702 If NCOL is negative, it will silently be forced to 0.
|
|
|
1703 If the window has no modeline, return nil. Otherwise, return the actual
|
|
|
1704 value that was set.
|
|
428
|
1705 */
|
|
|
1706 (window, ncol))
|
|
|
1707 {
|
|
|
1708 struct window *w = decode_window (window);
|
|
|
1709
|
|
|
1710 if (WINDOW_HAS_MODELINE_P (w))
|
|
|
1711 {
|
|
438
|
1712 Charcount ncols;
|
|
|
1713
|
|
428
|
1714 CHECK_INT (ncol);
|
|
438
|
1715 ncols = (XINT (ncol) <= 0) ? 0 : (Charcount) XINT (ncol);
|
|
|
1716 if (ncols != w->modeline_hscroll)
|
|
|
1717 {
|
|
|
1718 MARK_MODELINE_CHANGED;
|
|
|
1719 w->modeline_hscroll = ncols;
|
|
|
1720 }
|
|
|
1721 return make_int ((int) ncols);
|
|
428
|
1722 }
|
|
438
|
1723
|
|
428
|
1724 return Qnil;
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /*
|
|
|
1728 Set number of columns WINDOW is scrolled from left margin to NCOL.
|
|
|
1729 NCOL should be zero or positive.
|
|
|
1730 */
|
|
|
1731 (window, ncol))
|
|
|
1732 {
|
|
|
1733 struct window *w;
|
|
|
1734 int ncols;
|
|
|
1735
|
|
|
1736 CHECK_INT (ncol);
|
|
|
1737 ncols = XINT (ncol);
|
|
|
1738 if (ncols < 0) ncols = 0;
|
|
|
1739 w = decode_window (window);
|
|
|
1740 if (w->hscroll != ncols)
|
|
|
1741 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */
|
|
|
1742 w->hscroll = ncols;
|
|
|
1743 return ncol;
|
|
|
1744 }
|
|
|
1745
|
|
|
1746 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /*
|
|
|
1747 Return a list of the pixel edge coordinates of WINDOW.
|
|
444
|
1748 The returned list is of the form (LEFT TOP RIGHT BOTTOM),
|
|
|
1749 all relative to 0, 0 at the top left corner of WINDOW's frame.
|
|
|
1750 The frame toolbars, menubars and gutters are considered to be outside
|
|
|
1751 of this area, while the scrollbars are considered to be inside.
|
|
428
|
1752 */
|
|
|
1753 (window))
|
|
|
1754 {
|
|
|
1755 struct window *w = decode_window (window);
|
|
|
1756 struct frame *f = XFRAME (w->frame);
|
|
|
1757
|
|
442
|
1758 int left =
|
|
|
1759 w->pixel_left - FRAME_LEFT_BORDER_END (f) - FRAME_LEFT_GUTTER_BOUNDS (f);
|
|
|
1760 int top =
|
|
|
1761 w->pixel_top - FRAME_TOP_BORDER_END (f) - FRAME_TOP_GUTTER_BOUNDS (f);
|
|
428
|
1762
|
|
|
1763 return list4 (make_int (left),
|
|
|
1764 make_int (top),
|
|
|
1765 make_int (left + w->pixel_width),
|
|
|
1766 make_int (top + w->pixel_height));
|
|
|
1767 }
|
|
|
1768
|
|
|
1769 DEFUN ("window-text-area-pixel-edges",
|
|
|
1770 Fwindow_text_area_pixel_edges, 0, 1, 0, /*
|
|
|
1771 Return a list of the pixel edge coordinates of the text area of WINDOW.
|
|
444
|
1772 The returned list is of the form (LEFT TOP RIGHT BOTTOM),
|
|
|
1773 all relative to 0, 0 at the top left corner of the total area allocated
|
|
|
1774 to the window, which includes the scrollbars.
|
|
428
|
1775 */
|
|
|
1776 (window))
|
|
|
1777 {
|
|
|
1778 struct window *w = decode_window (window);
|
|
|
1779
|
|
|
1780 int left = window_left_gutter_width (w, /* modeline = */ 0);
|
|
|
1781 int top = window_top_gutter_height (w);
|
|
|
1782 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0);
|
|
|
1783 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w);
|
|
|
1784
|
|
|
1785 return list4 (make_int (left),
|
|
|
1786 make_int (top),
|
|
|
1787 make_int (right),
|
|
|
1788 make_int (bottom));
|
|
|
1789 }
|
|
|
1790
|
|
|
1791 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /*
|
|
|
1792 Return current value of point in WINDOW.
|
|
442
|
1793 For a non-selected window, this is the value point would have
|
|
428
|
1794 if that window were selected.
|
|
|
1795
|
|
|
1796 Note that, when WINDOW is the selected window and its buffer
|
|
|
1797 is also currently selected, the value returned is the same as (point).
|
|
|
1798 It would be more strictly correct to return the `top-level' value
|
|
|
1799 of point, outside of any save-excursion forms.
|
|
444
|
1800 But that value is hard to find.
|
|
428
|
1801 */
|
|
|
1802 (window))
|
|
|
1803 {
|
|
|
1804 struct window *w = decode_window (window);
|
|
|
1805
|
|
|
1806 /* The special check for current buffer is necessary for this
|
|
|
1807 function to work as defined when called within an excursion. */
|
|
|
1808 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device))
|
|
|
1809 && current_buffer == XBUFFER (w->buffer))
|
|
|
1810 return Fpoint (Qnil);
|
|
|
1811 return Fmarker_position (w->pointm[CURRENT_DISP]);
|
|
|
1812 }
|
|
|
1813
|
|
|
1814 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /*
|
|
|
1815 Return position at which display currently starts in WINDOW.
|
|
|
1816 This is updated by redisplay or by calling `set-window-start'.
|
|
|
1817 */
|
|
|
1818 (window))
|
|
|
1819 {
|
|
|
1820 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]);
|
|
|
1821 }
|
|
|
1822
|
|
|
1823 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /*
|
|
|
1824 Return position at which display currently ends in WINDOW.
|
|
|
1825 This is updated by redisplay, when it runs to completion.
|
|
444
|
1826 Simply changing the buffer text or setting `window-start' does not
|
|
|
1827 update this value. WINDOW defaults to the selected window.
|
|
|
1828
|
|
|
1829 If optional arg GUARANTEE is non-nil, the return value is guaranteed
|
|
|
1830 to be the same value as this function would return at the end of the
|
|
|
1831 next full redisplay assuming nothing else changes in the meantime.
|
|
|
1832 This function is potentially much slower with this flag set.
|
|
428
|
1833 */
|
|
|
1834 (window, guarantee))
|
|
|
1835 {
|
|
|
1836 struct window *w = decode_window (window);
|
|
|
1837
|
|
|
1838 if (NILP (guarantee))
|
|
|
1839 {
|
|
|
1840 Lisp_Object buf;
|
|
|
1841 buf = w->buffer;
|
|
|
1842 CHECK_BUFFER (buf);
|
|
|
1843 return make_int (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]);
|
|
|
1844 }
|
|
|
1845 else
|
|
|
1846 {
|
|
665
|
1847 Charbpos startp = marker_position (w->start[CURRENT_DISP]);
|
|
428
|
1848 return make_int (end_of_last_line (w, startp));
|
|
|
1849 }
|
|
|
1850 }
|
|
|
1851
|
|
442
|
1852 DEFUN ("window-last-line-visible-height", Fwindow_last_line_visible_height, 0, 1, 0, /*
|
|
|
1853 Return pixel height of visible part of last window line if it is clipped.
|
|
|
1854 If the last line is not clipped, return nil.
|
|
|
1855 */
|
|
|
1856 (window))
|
|
|
1857 {
|
|
|
1858 struct window *w = decode_window (window);
|
|
|
1859 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
1860 int num_lines = Dynarr_length (dla);
|
|
|
1861 struct display_line *dl;
|
|
|
1862
|
|
|
1863 /* No lines - no clipped lines */
|
|
|
1864 if (num_lines == 0 || (num_lines == 1 && Dynarr_atp (dla, 0)->modeline))
|
|
|
1865 return Qnil;
|
|
|
1866
|
|
|
1867 dl = Dynarr_atp (dla, num_lines - 1);
|
|
|
1868 if (dl->clip == 0)
|
|
|
1869 return Qnil;
|
|
|
1870
|
|
|
1871 return make_int (dl->ascent + dl->descent - dl->clip);
|
|
|
1872 }
|
|
|
1873
|
|
428
|
1874 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /*
|
|
|
1875 Make point value in WINDOW be at position POS in WINDOW's buffer.
|
|
1161
|
1876 If WINDOW is the selected window, and window's buffer is the current
|
|
|
1877 buffer, this actually changes the buffer's point instead of the window's
|
|
|
1878 point. (The equivalence of the selected window's point with its buffer's
|
|
|
1879 point is maintained throughout XEmacs. However, enforcing the additional
|
|
|
1880 restriction on the current buffer is "bug compatible" with FSF and is
|
|
|
1881 perhaps more logical.)
|
|
428
|
1882 */
|
|
|
1883 (window, pos))
|
|
|
1884 {
|
|
|
1885 struct window *w = decode_window (window);
|
|
|
1886
|
|
|
1887 CHECK_INT_COERCE_MARKER (pos);
|
|
1161
|
1888
|
|
844
|
1889 /* Don't dereference selected-window because there may not
|
|
|
1890 be one -- e.g. at startup */
|
|
1161
|
1891 if (EQ (wrap_window (w), Fselected_window (Qnil))
|
|
|
1892 && EQ (w->buffer, Fcurrent_buffer ()))
|
|
|
1893 Fgoto_char (pos, Qnil);
|
|
428
|
1894 else
|
|
|
1895 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer);
|
|
|
1896
|
|
|
1897 MARK_POINT_CHANGED;
|
|
|
1898 return pos;
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /*
|
|
|
1902 Make display in WINDOW start at position POS in WINDOW's buffer.
|
|
|
1903 Optional third arg NOFORCE non-nil inhibits next redisplay
|
|
|
1904 from overriding motion of point in order to display at this exact start.
|
|
|
1905 */
|
|
|
1906 (window, pos, noforce))
|
|
|
1907 {
|
|
|
1908 struct window *w = decode_window (window);
|
|
|
1909
|
|
|
1910 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1911 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer);
|
|
|
1912 /* this is not right, but much easier than doing what is right. */
|
|
|
1913 /* w->start_at_line_beg = 0; */
|
|
|
1914 /* WTF is the above supposed to mean? GE */
|
|
|
1915 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer),
|
|
|
1916 marker_position (w->start[CURRENT_DISP]));
|
|
|
1917 if (NILP (noforce))
|
|
|
1918 w->force_start = 1;
|
|
|
1919 w->redo_modeline = 1;
|
|
|
1920 SET_LAST_MODIFIED (w, 0);
|
|
|
1921 SET_LAST_FACECHANGE (w);
|
|
|
1922
|
|
|
1923 MARK_WINDOWS_CHANGED (w);
|
|
|
1924
|
|
|
1925 return pos;
|
|
|
1926 }
|
|
|
1927
|
|
|
1928 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /*
|
|
|
1929 Return WINDOW's dedicated object, usually t or nil.
|
|
|
1930 See also `set-window-dedicated-p'.
|
|
|
1931 */
|
|
|
1932 (window))
|
|
|
1933 {
|
|
|
1934 return decode_window (window)->dedicated;
|
|
|
1935 }
|
|
|
1936
|
|
|
1937 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /*
|
|
|
1938 Control whether WINDOW is dedicated to the buffer it displays.
|
|
|
1939 If it is dedicated, Emacs will not automatically change
|
|
|
1940 which buffer appears in it.
|
|
|
1941 The second argument is the new value for the dedication flag;
|
|
|
1942 non-nil means yes.
|
|
|
1943 */
|
|
|
1944 (window, arg))
|
|
|
1945 {
|
|
|
1946 struct window *w = decode_window (window);
|
|
|
1947
|
|
|
1948 w->dedicated = NILP (arg) ? Qnil : Qt;
|
|
|
1949
|
|
|
1950 return w->dedicated;
|
|
|
1951 }
|
|
|
1952
|
|
|
1953 /* FSFmacs has window-display-table here. We have display table as a
|
|
|
1954 specifier. */
|
|
|
1955
|
|
|
1956
|
|
|
1957 /* Record info on buffer window w is displaying
|
|
|
1958 when it is about to cease to display that buffer. */
|
|
|
1959 static void
|
|
|
1960 unshow_buffer (struct window *w)
|
|
|
1961 {
|
|
|
1962 Lisp_Object buf = w->buffer;
|
|
844
|
1963 struct buffer *b = XBUFFER (buf);
|
|
|
1964
|
|
|
1965 if (b != XMARKER (w->pointm[CURRENT_DISP])->buffer)
|
|
428
|
1966 abort ();
|
|
|
1967
|
|
|
1968 /* FSF disables this check, so I'll do it too. I hope it won't
|
|
|
1969 break things. --ben */
|
|
|
1970 #if 0
|
|
|
1971 if (w == XWINDOW (Fselected_window (Qnil))
|
|
|
1972 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
|
1973 /* Do this except when the selected window's buffer
|
|
|
1974 is being removed from some other window. */
|
|
|
1975 #endif
|
|
|
1976 /* last_window_start records the start position that this buffer
|
|
|
1977 had in the last window to be disconnected from it.
|
|
|
1978 Now that this statement is unconditional,
|
|
|
1979 it is possible for the buffer to be displayed in the
|
|
|
1980 selected window, while last_window_start reflects another
|
|
|
1981 window which was recently showing the same buffer.
|
|
|
1982 Some people might say that might be a good thing. Let's see. */
|
|
|
1983 XBUFFER (buf)->last_window_start =
|
|
|
1984 marker_position (w->start[CURRENT_DISP]);
|
|
|
1985
|
|
|
1986 /* Point in the selected window's buffer
|
|
|
1987 is actually stored in that buffer, and the window's pointm isn't used.
|
|
|
1988 So don't clobber point in that buffer. */
|
|
|
1989 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
844
|
1990 BUF_SET_PT (b,
|
|
|
1991 charbpos_clip_to_bounds
|
|
|
1992 (BUF_BEGV (b),
|
|
|
1993 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
1994 BUF_ZV (b)));
|
|
|
1995
|
|
|
1996 {
|
|
|
1997 Lisp_Object marker = Fgethash (buf, w->saved_point_cache, Qnil);
|
|
|
1998 int selected = EQ (wrap_window (w), Fselected_window (Qnil));
|
|
|
1999
|
|
|
2000 if (NILP (marker))
|
|
|
2001 {
|
|
|
2002 marker = Fmake_marker ();
|
|
|
2003 Fputhash (buf, marker, w->saved_point_cache);
|
|
|
2004 }
|
|
|
2005 Fset_marker (marker,
|
|
|
2006 selected ? make_int (BUF_PT (b)) : w->pointm[CURRENT_DISP],
|
|
|
2007 buf);
|
|
|
2008
|
|
|
2009 marker = Fgethash (buf, w->saved_last_window_start_cache, Qnil);
|
|
|
2010
|
|
|
2011 if (NILP (marker))
|
|
|
2012 {
|
|
|
2013 marker = Fmake_marker ();
|
|
|
2014 Fputhash (buf, marker, w->saved_last_window_start_cache);
|
|
|
2015 }
|
|
|
2016 Fset_marker (marker, w->start[CURRENT_DISP], buf);
|
|
|
2017 }
|
|
428
|
2018 }
|
|
|
2019
|
|
|
2020 /* Put REPLACEMENT into the window structure in place of OLD. */
|
|
|
2021 static void
|
|
|
2022 replace_window (Lisp_Object old, Lisp_Object replacement)
|
|
|
2023 {
|
|
|
2024 Lisp_Object tem;
|
|
|
2025 struct window *o = XWINDOW (old), *p = XWINDOW (replacement);
|
|
|
2026
|
|
|
2027 /* If OLD is its frame's root_window, then replacement is the new
|
|
|
2028 root_window for that frame. */
|
|
|
2029
|
|
|
2030 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame))))
|
|
|
2031 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement;
|
|
|
2032
|
|
|
2033 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
2034 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
2035 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
2036 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
2037
|
|
|
2038 p->next = tem = o->next;
|
|
|
2039 if (!NILP (tem))
|
|
|
2040 XWINDOW (tem)->prev = replacement;
|
|
|
2041
|
|
|
2042 p->prev = tem = o->prev;
|
|
|
2043 if (!NILP (tem))
|
|
|
2044 XWINDOW (tem)->next = replacement;
|
|
|
2045
|
|
|
2046 p->parent = tem = o->parent;
|
|
|
2047 if (!NILP (tem))
|
|
|
2048 {
|
|
|
2049 if (EQ (XWINDOW (tem)->vchild, old))
|
|
|
2050 XWINDOW (tem)->vchild = replacement;
|
|
|
2051 if (EQ (XWINDOW (tem)->hchild, old))
|
|
|
2052 XWINDOW (tem)->hchild = replacement;
|
|
|
2053 }
|
|
|
2054
|
|
|
2055 /* #### Here, if replacement is a vertical combination
|
|
|
2056 and so is its new parent, we should make replacement's
|
|
|
2057 children be children of that parent instead. */
|
|
442
|
2058
|
|
|
2059 ERROR_CHECK_SUBWINDOW_CACHE (p);
|
|
|
2060 }
|
|
|
2061
|
|
|
2062 static void
|
|
|
2063 window_unmap_subwindows (struct window* w)
|
|
|
2064 {
|
|
|
2065 assert (!NILP (w->subwindow_instance_cache));
|
|
|
2066 elisp_maphash (unmap_subwindow_instance_cache_mapper,
|
|
|
2067 w->subwindow_instance_cache, (void*)1);
|
|
428
|
2068 }
|
|
|
2069
|
|
|
2070 /* we're deleting W; set the structure of W to indicate this. */
|
|
|
2071
|
|
|
2072 static void
|
|
|
2073 mark_window_as_deleted (struct window *w)
|
|
|
2074 {
|
|
442
|
2075 /* The window instance cache is going away now, so need to get the
|
|
|
2076 cachels reset by redisplay. */
|
|
|
2077 MARK_FRAME_SUBWINDOWS_CHANGED (XFRAME (WINDOW_FRAME (w)));
|
|
|
2078
|
|
|
2079 /* The cache is going away. If we leave unmapping to
|
|
|
2080 reset_subwindow_cachels then we get in a situation where the
|
|
|
2081 domain (the window) has been deleted but we still need access to
|
|
|
2082 its attributes in order to unmap windows properly. Since the
|
|
|
2083 subwindows are going to get GC'd anyway as a result of the domain
|
|
|
2084 going away, it is safer to just unmap them all while we know the
|
|
|
2085 domain is still valid. */
|
|
|
2086 ERROR_CHECK_SUBWINDOW_CACHE (w);
|
|
|
2087 window_unmap_subwindows (w);
|
|
|
2088
|
|
617
|
2089 /* Free the extra data structures attached to windows immediately so
|
|
|
2090 they don't sit around consuming excess space. They will be
|
|
|
2091 reinitialized by the window-configuration code as necessary. */
|
|
|
2092 finalize_window ((void *) w, 0);
|
|
|
2093
|
|
1149
|
2094 /* Nobody should be accessing anything in this object any more,
|
|
618
|
2095 and making them Qnil allows for better GC'ing in case a pointer
|
|
|
2096 to the dead window continues to hang around. Zero all other
|
|
|
2097 structs in case someone tries to access something through them.
|
|
|
2098
|
|
|
2099 (So, in point of fact, we zero out all of the "saved" slots,
|
|
|
2100 which are obviously restored from the window config, plus the
|
|
|
2101 slots which were already zeroed.)
|
|
617
|
2102
|
|
|
2103 As an example of why setting the values to Qnil is good, here
|
|
|
2104 is an old comment:
|
|
|
2105
|
|
|
2106 In the loop
|
|
428
|
2107 (while t (split-window) (delete-window))
|
|
|
2108 we end up with a tree of deleted windows which are all connected
|
|
|
2109 through the `next' slot. This might not seem so bad, as they're
|
|
|
2110 deleted, and will presumably be GCed - but if even *one* of those
|
|
|
2111 windows is still being pointed to, by the user, or by a window
|
|
1149
|
2112 configuration, then *all* of those windows stick around. */
|
|
617
|
2113
|
|
618
|
2114 #define WINDOW_SLOT(slot)
|
|
|
2115 #define WINDOW_SAVED_SLOT(slot, compare) w->slot = Qnil;
|
|
617
|
2116 #include "winslots.h"
|
|
428
|
2117
|
|
618
|
2118 w->next = Qnil;
|
|
|
2119 w->prev = Qnil;
|
|
|
2120 w->hchild = Qnil;
|
|
|
2121 w->vchild = Qnil;
|
|
|
2122 w->parent = Qnil;
|
|
|
2123 w->subwindow_instance_cache = Qnil;
|
|
|
2124
|
|
428
|
2125 w->dead = 1;
|
|
853
|
2126 note_object_deleted (wrap_window (w));
|
|
428
|
2127 }
|
|
|
2128
|
|
1207
|
2129 /* Check if window contains pwindow. */
|
|
|
2130
|
|
|
2131 static int
|
|
|
2132 contains_window (Lisp_Object window, Lisp_Object pwindow)
|
|
|
2133 {
|
|
|
2134 while (!NILP (pwindow))
|
|
|
2135 {
|
|
|
2136 if (EQ (window, pwindow))
|
|
|
2137 return 1;
|
|
|
2138 pwindow = XWINDOW (pwindow)->parent;
|
|
|
2139 }
|
|
|
2140 return 0;
|
|
|
2141 }
|
|
|
2142
|
|
428
|
2143 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /*
|
|
|
2144 Remove WINDOW from the display. Default is selected window.
|
|
444
|
2145 If window is the only one on its frame, the frame is deleted as well.
|
|
428
|
2146 Normally, you cannot delete the last non-minibuffer-only frame (you must
|
|
|
2147 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional
|
|
|
2148 second argument FORCE is non-nil, you can delete the last frame. (This
|
|
|
2149 will automatically call `save-buffers-kill-emacs'.)
|
|
|
2150 */
|
|
|
2151 (window, force))
|
|
|
2152 {
|
|
|
2153 /* This function can GC if this is the only window in the frame */
|
|
|
2154 struct window *w;
|
|
|
2155 Lisp_Object parent;
|
|
|
2156 struct window *par;
|
|
|
2157 Lisp_Object frame;
|
|
|
2158 struct frame *f;
|
|
|
2159 struct device *d;
|
|
|
2160
|
|
|
2161 /* Note: this function is called by other C code on non-leaf
|
|
|
2162 windows. */
|
|
|
2163
|
|
|
2164 /* Do the equivalent of decode_window() but don't error out on
|
|
|
2165 deleted window; it's OK to delete an already-deleted window. */
|
|
|
2166 if (NILP (window))
|
|
|
2167 window = Fselected_window (Qnil);
|
|
|
2168 else
|
|
|
2169 CHECK_WINDOW (window);
|
|
442
|
2170
|
|
428
|
2171 w = XWINDOW (window);
|
|
|
2172
|
|
|
2173 /* It's okay to delete an already-deleted window. */
|
|
|
2174 if (! WINDOW_LIVE_P (w))
|
|
|
2175 return Qnil;
|
|
|
2176
|
|
853
|
2177 check_allowed_operation (OPERATION_DELETE_OBJECT, window, Qnil);
|
|
|
2178
|
|
428
|
2179 frame = WINDOW_FRAME (w);
|
|
|
2180 f = XFRAME (frame);
|
|
|
2181 d = XDEVICE (FRAME_DEVICE (f));
|
|
|
2182
|
|
|
2183 if (TOP_LEVEL_WINDOW_P (w))
|
|
|
2184 {
|
|
|
2185 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d))))
|
|
|
2186 /* this frame isn't fully initialized yet; don't blow up. */
|
|
|
2187 return Qnil;
|
|
|
2188
|
|
|
2189 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
563
|
2190 signal_error (Qinvalid_operation, "Attempt to delete the minibuffer window", Qunbound);
|
|
428
|
2191
|
|
|
2192 /* It has been suggested that it's a good thing for C-x 0 to have this
|
|
|
2193 behavior, but not such a good idea for #'delete-window to have it.
|
|
|
2194 Maybe C-x 0 should be bound to something else, or maybe frame
|
|
|
2195 deletion should only happen when this is called interactively.
|
|
|
2196 */
|
|
|
2197 delete_frame_internal (f, !NILP (force), 0, 0);
|
|
|
2198 return Qnil;
|
|
|
2199 }
|
|
|
2200
|
|
|
2201 /* At this point, we know the window has a parent. */
|
|
|
2202 parent = w->parent;
|
|
|
2203 par = XWINDOW (parent);
|
|
|
2204
|
|
|
2205 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
430
|
2206 /* It's quite likely that deleting a window will result in
|
|
|
2207 subwindows needing to be deleted also (since they are cached
|
|
|
2208 per-window). So we mark them as changed, so that the cachels will
|
|
|
2209 get reset by redisplay and thus deleted subwindows can get
|
|
|
2210 GC'd. */
|
|
|
2211 MARK_FRAME_SUBWINDOWS_CHANGED (f);
|
|
428
|
2212
|
|
|
2213 /* Are we trying to delete any frame's selected window?
|
|
|
2214 Note that we could be dealing with a non-leaf window
|
|
|
2215 where the selected window is one of our children.
|
|
|
2216 So, we check by scanning all the ancestors of the
|
|
|
2217 frame's selected window and comparing each one with
|
|
|
2218 WINDOW. */
|
|
1207
|
2219 if (contains_window (window, FRAME_SELECTED_WINDOW (f)))
|
|
|
2220 {
|
|
|
2221 Lisp_Object alternative;
|
|
|
2222 alternative = Fnext_window (window, Qlambda, Qnil, Qnil);
|
|
|
2223
|
|
|
2224 /* #### */
|
|
|
2225 /* If we're about to delete the selected window on the
|
|
|
2226 selected frame, then we should use Fselect_window to select
|
|
|
2227 the new window. On the other hand, if we're about to
|
|
|
2228 delete the selected window on any other frame, we shouldn't do
|
|
|
2229 anything but set the frame's selected_window slot. */
|
|
|
2230 if (EQ (frame, Fselected_frame (Qnil)))
|
|
|
2231 Fselect_window (alternative, Qnil);
|
|
|
2232 else
|
|
|
2233 set_frame_selected_window (f, alternative);
|
|
|
2234 }
|
|
|
2235
|
|
|
2236 /* Some display parameters (gutter display specifically) depend on
|
|
|
2237 FRAME_LAST_NONMINIBUF (f) to be set to a live window. Ensure that. */
|
|
|
2238 if (contains_window (window, FRAME_LAST_NONMINIBUF_WINDOW (f)))
|
|
|
2239 f->last_nonminibuf_window = Fnext_window (window, Qlambda, Qnil, Qnil);
|
|
428
|
2240
|
|
|
2241 /* w->buffer is nil in a non-leaf window; in this case,
|
|
|
2242 get rid of the markers we maintain that point into that buffer. */
|
|
|
2243 if (!NILP (w->buffer))
|
|
|
2244 {
|
|
|
2245 unshow_buffer (w);
|
|
|
2246 unchain_marker (w->pointm[CURRENT_DISP]);
|
|
|
2247 unchain_marker (w->pointm[DESIRED_DISP]);
|
|
|
2248 unchain_marker (w->pointm[CMOTION_DISP]);
|
|
|
2249 unchain_marker (w->start[CURRENT_DISP]);
|
|
|
2250 unchain_marker (w->start[DESIRED_DISP]);
|
|
|
2251 unchain_marker (w->start[CMOTION_DISP]);
|
|
|
2252 unchain_marker (w->sb_point);
|
|
1149
|
2253 w->buffer = Qnil;
|
|
428
|
2254 }
|
|
|
2255
|
|
|
2256 /* close up the hole in the sibling list */
|
|
|
2257 if (!NILP (w->next))
|
|
|
2258 XWINDOW (w->next)->prev = w->prev;
|
|
|
2259 if (!NILP (w->prev))
|
|
|
2260 XWINDOW (w->prev)->next = w->next;
|
|
|
2261 if (EQ (window, par->hchild))
|
|
|
2262 par->hchild = w->next;
|
|
|
2263 if (EQ (window, par->vchild))
|
|
|
2264 par->vchild = w->next;
|
|
|
2265
|
|
|
2266 /* Find one of our siblings to give our space to. */
|
|
|
2267 {
|
|
|
2268 Lisp_Object sib = w->prev;
|
|
|
2269 if (NILP (sib))
|
|
|
2270 {
|
|
|
2271 /* If w gives its space to its next sibling, that sibling needs
|
|
|
2272 to have its top/left side pulled back to where w's is.
|
|
|
2273 set_window_{height,width} will re-position the sibling's
|
|
|
2274 children. */
|
|
|
2275 sib = w->next;
|
|
|
2276 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w);
|
|
|
2277 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w);
|
|
|
2278 }
|
|
|
2279
|
|
|
2280 /* Stretch that sibling. */
|
|
|
2281 if (!NILP (par->vchild))
|
|
|
2282 set_window_pixheight
|
|
|
2283 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1);
|
|
|
2284 if (!NILP (par->hchild))
|
|
|
2285 set_window_pixwidth
|
|
|
2286 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1);
|
|
|
2287 }
|
|
|
2288
|
|
|
2289 /* If parent now has only one child,
|
|
|
2290 put the child into the parent's place. */
|
|
|
2291 {
|
|
|
2292 Lisp_Object parchild = par->hchild;
|
|
|
2293 if (NILP (parchild))
|
|
|
2294 parchild = par->vchild;
|
|
|
2295 if (NILP (XWINDOW (parchild)->next))
|
|
|
2296 {
|
|
|
2297 replace_window (parent, parchild);
|
|
|
2298 mark_window_as_deleted (XWINDOW (parent));
|
|
|
2299 }
|
|
|
2300 }
|
|
|
2301
|
|
|
2302 /* Since we may be deleting combination windows, we must make sure that
|
|
|
2303 not only W but all its children have been marked as deleted. */
|
|
|
2304 if (!NILP (w->hchild))
|
|
|
2305 delete_all_subwindows (XWINDOW (w->hchild));
|
|
|
2306 else if (!NILP (w->vchild))
|
|
|
2307 delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
2308
|
|
1752
|
2309 /* Warning: mark_window_as_deleted calls window_unmap_subwindows and
|
|
|
2310 therefore redisplay, so it requires the mirror structure to be
|
|
|
2311 correct. We must dirty the mirror before it is called. */
|
|
|
2312 f->mirror_dirty = 1;
|
|
|
2313
|
|
428
|
2314 mark_window_as_deleted (w);
|
|
|
2315
|
|
|
2316 return Qnil;
|
|
|
2317 }
|
|
|
2318
|
|
|
2319
|
|
|
2320 DEFUN ("next-window", Fnext_window, 0, 4, 0, /*
|
|
442
|
2321 Return the next window after WINDOW in the canonical ordering of windows.
|
|
428
|
2322 If omitted, WINDOW defaults to the selected window.
|
|
|
2323
|
|
|
2324 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
2325 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
2326 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
2327 minibuffer even if it is active.
|
|
|
2328
|
|
|
2329 Several frames may share a single minibuffer; if the minibuffer
|
|
|
2330 counts, all windows on all frames that share that minibuffer count
|
|
|
2331 too. Therefore, `next-window' can be used to iterate through the
|
|
|
2332 set of windows even when the minibuffer is on another frame. If the
|
|
|
2333 minibuffer does not count, only windows from WINDOW's frame count.
|
|
|
2334
|
|
444
|
2335 By default, only the windows in the selected frame are considered.
|
|
|
2336 The optional argument WHICH-FRAMES changes this behavior:
|
|
|
2337 WHICH-FRAMES = `visible' means search windows on all visible frames.
|
|
448
|
2338 WHICH-FRAMES = 0 means search windows on all visible and iconified frames.
|
|
444
|
2339 WHICH-FRAMES = t means search windows on all frames including invisible frames.
|
|
|
2340 WHICH-FRAMES = a frame means search only windows on that frame.
|
|
|
2341 Anything else means restrict to the selected frame.
|
|
|
2342
|
|
|
2343 The optional fourth argument WHICH-DEVICES further clarifies on which
|
|
|
2344 devices to search for frames as specified by WHICH-FRAMES. This value
|
|
|
2345 is only meaningful if WHICH-FRAMES is non-nil.
|
|
|
2346 If nil or omitted, search all devices on the selected console.
|
|
|
2347 If a device, only search that device.
|
|
|
2348 If a console, search all devices on that console.
|
|
|
2349 If a device type, search all devices of that type.
|
|
|
2350 If `window-system', search all window-system devices.
|
|
|
2351 Any other non-nil value means search all devices.
|
|
|
2352
|
|
|
2353 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES,
|
|
|
2354 you can use `next-window' to iterate through the entire cycle of
|
|
|
2355 acceptable windows, eventually ending up back at the window you started with.
|
|
428
|
2356 `previous-window' traverses the same cycle, in the reverse order.
|
|
|
2357 */
|
|
444
|
2358 (window, minibuf, which_frames, which_devices))
|
|
428
|
2359 {
|
|
|
2360 Lisp_Object tem;
|
|
|
2361 Lisp_Object start_window;
|
|
|
2362
|
|
|
2363 if (NILP (window))
|
|
|
2364 window = Fselected_window (Qnil);
|
|
|
2365 else
|
|
|
2366 CHECK_LIVE_WINDOW (window);
|
|
|
2367
|
|
|
2368 start_window = window;
|
|
|
2369
|
|
|
2370 /* minibuf == nil may or may not include minibuffers.
|
|
|
2371 Decide if it does. */
|
|
|
2372 if (NILP (minibuf))
|
|
|
2373 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
2374 else if (! EQ (minibuf, Qt))
|
|
|
2375 minibuf = Qlambda;
|
|
442
|
2376 /* Now `minibuf' is one of:
|
|
|
2377 t => count all minibuffer windows
|
|
|
2378 lambda => count none of them
|
|
428
|
2379 or a specific minibuffer window (the active one) to count. */
|
|
|
2380
|
|
444
|
2381 /* which_frames == nil doesn't specify which frames to include. */
|
|
|
2382 if (NILP (which_frames))
|
|
|
2383 which_frames = (! EQ (minibuf, Qlambda)
|
|
428
|
2384 ? (FRAME_MINIBUF_WINDOW
|
|
|
2385 (XFRAME
|
|
|
2386 (WINDOW_FRAME
|
|
|
2387 (XWINDOW (window)))))
|
|
|
2388 : Qnil);
|
|
444
|
2389 else if (EQ (which_frames, Qvisible))
|
|
428
|
2390 ;
|
|
444
|
2391 else if (ZEROP (which_frames))
|
|
428
|
2392 ;
|
|
444
|
2393 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window)))
|
|
|
2394 /* If which_frames is a frame and window arg isn't on that frame, just
|
|
428
|
2395 return the first window on the frame. */
|
|
444
|
2396 return frame_first_window (XFRAME (which_frames));
|
|
|
2397 else if (! EQ (which_frames, Qt))
|
|
|
2398 which_frames = Qnil;
|
|
|
2399 /* Now `which_frames' is one of:
|
|
442
|
2400 t => search all frames
|
|
|
2401 nil => search just the current frame
|
|
|
2402 visible => search just visible frames
|
|
|
2403 0 => search visible and iconified frames
|
|
|
2404 a window => search the frame that window belongs to. */
|
|
428
|
2405
|
|
|
2406 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2407 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2408 do
|
|
|
2409 {
|
|
|
2410 /* Find a window that actually has a next one. This loop
|
|
|
2411 climbs up the tree. */
|
|
|
2412 while (tem = XWINDOW (window)->next, NILP (tem))
|
|
|
2413 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2414 window = tem;
|
|
|
2415 else /* window must be minibuffer window now */
|
|
|
2416 {
|
|
|
2417 /* We've reached the end of this frame.
|
|
|
2418 Which other frames are acceptable? */
|
|
|
2419 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2420
|
|
444
|
2421 if (! NILP (which_frames))
|
|
428
|
2422 {
|
|
442
|
2423 Lisp_Object tem1 = tem;
|
|
444
|
2424 tem = next_frame (tem, which_frames, which_devices);
|
|
442
|
2425
|
|
428
|
2426 /* In the case where the minibuffer is active,
|
|
|
2427 and we include its frame as well as the selected one,
|
|
|
2428 next_frame may get stuck in that frame.
|
|
|
2429 If that happens, go back to the selected frame
|
|
|
2430 so we can complete the cycle. */
|
|
|
2431 if (EQ (tem, tem1))
|
|
793
|
2432 tem = wrap_frame (selected_frame ());
|
|
428
|
2433 }
|
|
|
2434
|
|
|
2435 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2436 break;
|
|
|
2437 }
|
|
|
2438
|
|
|
2439 window = tem;
|
|
|
2440
|
|
|
2441 /* If we're in a combination window, find its first child and
|
|
|
2442 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2443 while (1)
|
|
|
2444 {
|
|
|
2445 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2446 window = XWINDOW (window)->hchild;
|
|
|
2447 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2448 window = XWINDOW (window)->vchild;
|
|
|
2449 else break;
|
|
|
2450 }
|
|
|
2451 }
|
|
|
2452 /* Which windows are acceptable?
|
|
|
2453 Exit the loop and accept this window if
|
|
|
2454 this isn't a minibuffer window,
|
|
|
2455 or we're accepting all minibuffer windows,
|
|
|
2456 or this is the active minibuffer and we are accepting that one, or
|
|
|
2457 we've come all the way around and we're back at the original window. */
|
|
|
2458 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2459 && ! EQ (minibuf, Qt)
|
|
|
2460 && ! EQ (minibuf, window)
|
|
|
2461 && ! EQ (window, start_window));
|
|
|
2462
|
|
|
2463 return window;
|
|
|
2464 }
|
|
|
2465
|
|
|
2466 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /*
|
|
442
|
2467 Return the window preceding WINDOW in the canonical ordering of windows.
|
|
428
|
2468 If omitted, WINDOW defaults to the selected window.
|
|
|
2469
|
|
|
2470 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
2471 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
2472 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
2473 minibuffer even if it is active.
|
|
|
2474
|
|
|
2475 Several frames may share a single minibuffer; if the minibuffer
|
|
|
2476 counts, all windows on all frames that share that minibuffer count
|
|
|
2477 too. Therefore, `previous-window' can be used to iterate through
|
|
|
2478 the set of windows even when the minibuffer is on another frame. If
|
|
442
|
2479 the minibuffer does not count, only windows from WINDOW's frame count.
|
|
|
2480
|
|
444
|
2481 By default, only the windows in the selected frame are considered.
|
|
|
2482 The optional argument WHICH-FRAMES changes this behavior:
|
|
|
2483 WHICH-FRAMES = `visible' means search windows on all visible frames.
|
|
448
|
2484 WHICH-FRAMES = 0 means search windows on all visible and iconified frames.
|
|
444
|
2485 WHICH-FRAMES = t means search windows on all frames including invisible frames.
|
|
|
2486 WHICH-FRAMES = a frame means search only windows on that frame.
|
|
|
2487 Anything else means restrict to the selected frame.
|
|
|
2488
|
|
|
2489 The optional fourth argument WHICH-DEVICES further clarifies on which
|
|
|
2490 devices to search for frames as specified by WHICH-FRAMES. This value
|
|
|
2491 is only meaningful if WHICH-FRAMES is non-nil.
|
|
|
2492 If nil or omitted, search all devices on the selected console.
|
|
|
2493 If a device, only search that device.
|
|
|
2494 If a console, search all devices on that console.
|
|
|
2495 If a device type, search all devices of that type.
|
|
|
2496 If `window-system', search all window-system devices.
|
|
|
2497 Any other non-nil value means search all devices.
|
|
|
2498
|
|
|
2499 If you use consistent values for MINIBUF, WHICH-FRAMES, and WHICH-DEVICES,
|
|
|
2500 you can use `previous-window' to iterate through the entire cycle of
|
|
|
2501 acceptable windows, eventually ending up back at the window you started with.
|
|
428
|
2502 `next-window' traverses the same cycle, in the reverse order.
|
|
|
2503 */
|
|
444
|
2504 (window, minibuf, which_frames, devices))
|
|
428
|
2505 {
|
|
|
2506 Lisp_Object tem;
|
|
|
2507 Lisp_Object start_window;
|
|
|
2508
|
|
|
2509 if (NILP (window))
|
|
|
2510 window = Fselected_window (Qnil);
|
|
|
2511 else
|
|
|
2512 CHECK_LIVE_WINDOW (window);
|
|
|
2513
|
|
|
2514 start_window = window;
|
|
|
2515
|
|
|
2516 /* minibuf == nil may or may not include minibuffers.
|
|
|
2517 Decide if it does. */
|
|
|
2518 if (NILP (minibuf))
|
|
|
2519 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
2520 else if (! EQ (minibuf, Qt))
|
|
|
2521 minibuf = Qlambda;
|
|
442
|
2522 /* Now `minibuf' is one of:
|
|
|
2523 t => count all minibuffer windows
|
|
|
2524 lambda => count none of them
|
|
428
|
2525 or a specific minibuffer window (the active one) to count. */
|
|
|
2526
|
|
444
|
2527 /* which_frames == nil doesn't specify which frames to include.
|
|
428
|
2528 Decide which frames it includes. */
|
|
444
|
2529 if (NILP (which_frames))
|
|
|
2530 which_frames = (! EQ (minibuf, Qlambda)
|
|
428
|
2531 ? (FRAME_MINIBUF_WINDOW
|
|
|
2532 (XFRAME
|
|
|
2533 (WINDOW_FRAME
|
|
|
2534 (XWINDOW (window)))))
|
|
|
2535 : Qnil);
|
|
444
|
2536 else if (EQ (which_frames, Qvisible))
|
|
428
|
2537 ;
|
|
444
|
2538 else if (ZEROP (which_frames))
|
|
428
|
2539 ;
|
|
444
|
2540 else if (FRAMEP (which_frames) && ! EQ (which_frames, Fwindow_frame (window)))
|
|
|
2541 /* If which_frames is a frame and window arg isn't on that frame, just
|
|
428
|
2542 return the first window on the frame. */
|
|
444
|
2543 return frame_first_window (XFRAME (which_frames));
|
|
|
2544 else if (! EQ (which_frames, Qt))
|
|
|
2545 which_frames = Qnil;
|
|
|
2546 /* Now `which_frames' is one of:
|
|
442
|
2547 t => search all frames
|
|
|
2548 nil => search just the current frame
|
|
|
2549 visible => search just visible frames
|
|
|
2550 0 => search visible and iconified frames
|
|
|
2551 a window => search the frame that window belongs to. */
|
|
428
|
2552
|
|
|
2553 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2554 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2555 do
|
|
|
2556 {
|
|
|
2557 /* Find a window that actually has a next one. This loop
|
|
|
2558 climbs up the tree. */
|
|
|
2559 while (tem = XWINDOW (window)->prev, NILP (tem))
|
|
|
2560 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2561 window = tem;
|
|
|
2562 else /* window must be minibuffer window now */
|
|
|
2563 {
|
|
|
2564 /* We have found the top window on the frame.
|
|
|
2565 Which frames are acceptable? */
|
|
|
2566 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2567
|
|
444
|
2568 if (! NILP (which_frames))
|
|
442
|
2569 /* It's actually important that we use previous_frame here,
|
|
428
|
2570 rather than next_frame. All the windows acceptable
|
|
|
2571 according to the given parameters should form a ring;
|
|
|
2572 Fnext_window and Fprevious_window should go back and
|
|
|
2573 forth around the ring. If we use next_frame here,
|
|
|
2574 then Fnext_window and Fprevious_window take different
|
|
|
2575 paths through the set of acceptable windows.
|
|
|
2576 window_loop assumes that these `ring' requirement are
|
|
|
2577 met. */
|
|
|
2578 {
|
|
442
|
2579 Lisp_Object tem1 = tem;
|
|
444
|
2580 tem = previous_frame (tem, which_frames, devices);
|
|
428
|
2581 /* In the case where the minibuffer is active,
|
|
|
2582 and we include its frame as well as the selected one,
|
|
|
2583 next_frame may get stuck in that frame.
|
|
|
2584 If that happens, go back to the selected frame
|
|
|
2585 so we can complete the cycle. */
|
|
|
2586 if (EQ (tem, tem1))
|
|
793
|
2587 tem = wrap_frame (selected_frame ());
|
|
428
|
2588 }
|
|
|
2589
|
|
|
2590 /* If this frame has a minibuffer, find that window first,
|
|
|
2591 because it is conceptually the last window in that frame. */
|
|
|
2592 if (FRAME_HAS_MINIBUF_P (XFRAME (tem)))
|
|
|
2593 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem));
|
|
|
2594 else
|
|
|
2595 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2596
|
|
|
2597 break;
|
|
|
2598 }
|
|
|
2599
|
|
|
2600 window = tem;
|
|
|
2601
|
|
|
2602 /* If we're in a combination window, find its first child and
|
|
|
2603 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2604 while (1)
|
|
|
2605 {
|
|
|
2606 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2607 window = XWINDOW (window)->hchild;
|
|
|
2608 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2609 window = XWINDOW (window)->vchild;
|
|
|
2610 else break;
|
|
|
2611 while (tem = XWINDOW (window)->next, !NILP (tem))
|
|
|
2612 window = tem;
|
|
|
2613 }
|
|
|
2614 }
|
|
|
2615 /* Which windows are acceptable?
|
|
|
2616 Exit the loop and accept this window if
|
|
|
2617 this isn't a minibuffer window,
|
|
|
2618 or we're accepting all minibuffer windows,
|
|
|
2619 or this is the active minibuffer and we are accepting that one, or
|
|
|
2620 we've come all the way around and we're back at the original window. */
|
|
|
2621 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2622 && ! EQ (minibuf, Qt)
|
|
|
2623 && ! EQ (minibuf, window)
|
|
|
2624 && ! EQ (window, start_window));
|
|
|
2625
|
|
|
2626 return window;
|
|
|
2627 }
|
|
|
2628
|
|
|
2629 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /*
|
|
|
2630 Return the next window which is vertically after WINDOW.
|
|
|
2631 */
|
|
|
2632 (window))
|
|
|
2633 {
|
|
|
2634 Lisp_Object root;
|
|
|
2635 struct window *w = decode_window (window);
|
|
793
|
2636 window = wrap_window (w);
|
|
428
|
2637
|
|
|
2638 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
2639 return Qnil;
|
|
|
2640
|
|
|
2641 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window))));
|
|
|
2642
|
|
|
2643 if (EQ (window, root))
|
|
|
2644 {
|
|
|
2645 while (1)
|
|
|
2646 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2647 window = XWINDOW (window)->hchild;
|
|
|
2648 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2649 window = XWINDOW (window)->vchild;
|
|
|
2650 else
|
|
|
2651 return window;
|
|
|
2652 }
|
|
|
2653
|
|
|
2654 do
|
|
|
2655 {
|
|
|
2656 if (!NILP (XWINDOW (window)->parent) &&
|
|
|
2657 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild))
|
|
|
2658 {
|
|
|
2659 if (!NILP (XWINDOW (window)->next))
|
|
|
2660 return XWINDOW (window)->next;
|
|
|
2661 else
|
|
|
2662 window = XWINDOW (window)->parent;
|
|
|
2663 }
|
|
|
2664 else
|
|
|
2665 window = XWINDOW (window)->parent;
|
|
|
2666 }
|
|
|
2667 while (!EQ (window, root));
|
|
|
2668
|
|
|
2669 while (1)
|
|
|
2670 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2671 window = XWINDOW (window)->hchild;
|
|
|
2672 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2673 window = XWINDOW (window)->vchild;
|
|
|
2674 else
|
|
|
2675 return window;
|
|
|
2676 }
|
|
|
2677
|
|
|
2678 DEFUN ("other-window", Fother_window, 1, 3, "p", /*
|
|
444
|
2679 Select the COUNT'th different window on this frame.
|
|
428
|
2680 All windows on current frame are arranged in a cyclic order.
|
|
444
|
2681 This command selects the window COUNT steps away in that order.
|
|
|
2682 A negative COUNT moves in the opposite order.
|
|
|
2683
|
|
|
2684 By default, only the windows in the selected frame are considered.
|
|
|
2685 The optional argument WHICH-FRAMES changes this behavior:
|
|
|
2686 WHICH-FRAMES = `visible' means search windows on all visible frames.
|
|
448
|
2687 WHICH-FRAMES = 0 means search windows on all visible and iconified frames.
|
|
444
|
2688 WHICH-FRAMES = t means search windows on all frames including invisible frames.
|
|
|
2689 WHICH-FRAMES = a frame means search only windows on that frame.
|
|
|
2690 Anything else means restrict to the selected frame.
|
|
|
2691
|
|
|
2692 The optional argument WHICH-DEVICES further clarifies on which devices
|
|
|
2693 to search for frames as specified by WHICH-FRAMES. This value is only
|
|
|
2694 meaningful if WHICH-FRAMES is non-nil.
|
|
|
2695 If nil or omitted, search all devices on the selected console.
|
|
|
2696 If a device, only search that device.
|
|
|
2697 If a console, search all devices on that console.
|
|
|
2698 If a device type, search all devices of that type.
|
|
|
2699 If `window-system', search all window-system devices.
|
|
|
2700 Any other non-nil value means search all devices.
|
|
428
|
2701 */
|
|
444
|
2702 (count, which_frames, which_devices))
|
|
428
|
2703 {
|
|
|
2704 int i;
|
|
|
2705 Lisp_Object w;
|
|
|
2706
|
|
444
|
2707 CHECK_INT (count);
|
|
428
|
2708 w = Fselected_window (Qnil);
|
|
444
|
2709 i = XINT (count);
|
|
428
|
2710
|
|
|
2711 while (i > 0)
|
|
|
2712 {
|
|
444
|
2713 w = Fnext_window (w, Qnil, which_frames, which_devices);
|
|
428
|
2714 i--;
|
|
|
2715 }
|
|
|
2716 while (i < 0)
|
|
|
2717 {
|
|
444
|
2718 w = Fprevious_window (w, Qnil, which_frames, which_devices);
|
|
428
|
2719 i++;
|
|
|
2720 }
|
|
|
2721 Fselect_window (w, Qnil);
|
|
|
2722 return Qnil;
|
|
|
2723 }
|
|
|
2724
|
|
|
2725
|
|
|
2726 /* Look at all windows, performing an operation specified by TYPE
|
|
|
2727 with argument OBJ.
|
|
|
2728
|
|
|
2729 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected
|
|
|
2730 frame. If FRAMES is a frame, just look at windows on that frame.
|
|
|
2731 If MINI is non-zero, perform the operation on minibuffer windows too.
|
|
|
2732 */
|
|
|
2733
|
|
|
2734 enum window_loop
|
|
|
2735 {
|
|
|
2736 WINDOW_LOOP_UNUSED,
|
|
|
2737 GET_BUFFER_WINDOW, /* Arg is buffer */
|
|
|
2738 GET_LRU_WINDOW, /* Arg is t for full-width windows only */
|
|
|
2739 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */
|
|
|
2740 DELETE_BUFFER_WINDOWS, /* Arg is buffer */
|
|
|
2741 GET_LARGEST_WINDOW,
|
|
|
2742 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */
|
|
|
2743 GET_BUFFER_MRU_WINDOW /* Arg is buffer */
|
|
|
2744 };
|
|
|
2745
|
|
|
2746 static Lisp_Object
|
|
|
2747 window_loop (enum window_loop type,
|
|
|
2748 Lisp_Object obj,
|
|
|
2749 int mini,
|
|
444
|
2750 Lisp_Object which_frames,
|
|
428
|
2751 int dedicated_too,
|
|
444
|
2752 Lisp_Object which_devices)
|
|
428
|
2753 {
|
|
448
|
2754 /* This function can GC if type == DELETE_BUFFER_WINDOWS */
|
|
428
|
2755 Lisp_Object w;
|
|
|
2756 Lisp_Object best_window = Qnil;
|
|
|
2757 Lisp_Object next_window;
|
|
|
2758 Lisp_Object last_window;
|
|
|
2759 struct frame *frame;
|
|
|
2760 Lisp_Object frame_arg = Qt;
|
|
|
2761 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */
|
|
|
2762 /* #### I think the change of "precomputing" last_window and next_window
|
|
|
2763 * #### catch the lossage this is meant(?) to punt on...
|
|
|
2764 */
|
|
|
2765 int lose_lose = 0;
|
|
|
2766 Lisp_Object devcons, concons;
|
|
|
2767
|
|
|
2768 /* If we're only looping through windows on a particular frame,
|
|
|
2769 FRAME points to that frame. If we're looping through windows
|
|
|
2770 on all frames, FRAME is 0. */
|
|
444
|
2771 if (FRAMEP (which_frames))
|
|
|
2772 frame = XFRAME (which_frames);
|
|
|
2773 else if (NILP (which_frames))
|
|
428
|
2774 frame = selected_frame ();
|
|
|
2775 else
|
|
|
2776 frame = 0;
|
|
442
|
2777
|
|
|
2778 /* FRAME_ARG is Qlambda to stick to one frame,
|
|
|
2779 Qvisible to consider all visible frames,
|
|
|
2780 or Qt otherwise. */
|
|
428
|
2781 if (frame)
|
|
|
2782 frame_arg = Qlambda;
|
|
444
|
2783 else if (ZEROP (which_frames))
|
|
|
2784 frame_arg = which_frames;
|
|
|
2785 else if (EQ (which_frames, Qvisible))
|
|
|
2786 frame_arg = which_frames;
|
|
428
|
2787
|
|
|
2788 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
2789 {
|
|
|
2790 Lisp_Object device = XCAR (devcons);
|
|
|
2791 Lisp_Object the_frame;
|
|
|
2792
|
|
|
2793 if (frame)
|
|
793
|
2794 the_frame = wrap_frame (frame);
|
|
428
|
2795 else
|
|
|
2796 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device));
|
|
|
2797
|
|
|
2798 if (NILP (the_frame))
|
|
|
2799 continue;
|
|
|
2800
|
|
444
|
2801 if (!device_matches_device_spec (device,
|
|
|
2802 NILP (which_devices) ?
|
|
|
2803 FRAME_CONSOLE (XFRAME (the_frame)) :
|
|
|
2804 which_devices))
|
|
428
|
2805 continue;
|
|
|
2806
|
|
|
2807 /* Pick a window to start with. */
|
|
|
2808 if (WINDOWP (obj))
|
|
|
2809 w = obj;
|
|
|
2810 else
|
|
|
2811 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame));
|
|
|
2812
|
|
|
2813 /* Figure out the last window we're going to mess with. Since
|
|
|
2814 Fnext_window, given the same options, is guaranteed to go in a
|
|
|
2815 ring, we can just use Fprevious_window to find the last one.
|
|
|
2816
|
|
|
2817 We can't just wait until we hit the first window again,
|
|
|
2818 because it might be deleted. */
|
|
|
2819
|
|
707
|
2820 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, device);
|
|
428
|
2821
|
|
|
2822 best_window = Qnil;
|
|
|
2823 for (;;)
|
|
|
2824 {
|
|
|
2825 struct window *p = XWINDOW (w);
|
|
|
2826
|
|
|
2827 /* Pick the next window now, since some operations will delete
|
|
|
2828 the current window. */
|
|
442
|
2829 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, device);
|
|
428
|
2830
|
|
|
2831 /* #### Still needed ?? */
|
|
|
2832 /* Given the outstanding quality of the rest of this code,
|
|
|
2833 I feel no shame about putting this piece of shit in. */
|
|
|
2834 if (++lose_lose >= 500)
|
|
707
|
2835 {
|
|
|
2836 /* Call to abort() added by Darryl Okahata (16 Nov. 2001),
|
|
|
2837 at Ben's request, to catch any remaining bugs.
|
|
|
2838
|
|
|
2839 If you find that XEmacs is aborting here, and you
|
|
|
2840 need to be up and running ASAP, it should be safe to
|
|
|
2841 comment out the following abort(), as long as you
|
|
|
2842 leave the "break;" alone. */
|
|
|
2843 abort();
|
|
|
2844 break; /* <--- KEEP THIS HERE! Do not delete! */
|
|
|
2845 }
|
|
428
|
2846
|
|
|
2847 /* Note that we do not pay attention here to whether
|
|
|
2848 the frame is visible, since Fnext_window skips non-visible frames
|
|
|
2849 if that is desired, under the control of frame_arg. */
|
|
|
2850 if (! MINI_WINDOW_P (p)
|
|
|
2851 || (mini && minibuf_level > 0))
|
|
|
2852 switch (type)
|
|
|
2853 {
|
|
|
2854 case GET_BUFFER_WINDOW:
|
|
|
2855 {
|
|
|
2856 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2857 return w;
|
|
|
2858 break;
|
|
|
2859 }
|
|
|
2860
|
|
|
2861 case GET_BUFFER_WINDOW_COUNT:
|
|
|
2862 {
|
|
|
2863 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2864 count++;
|
|
|
2865 break;
|
|
|
2866 }
|
|
|
2867
|
|
|
2868 case GET_LRU_WINDOW:
|
|
|
2869 {
|
|
|
2870 /* t as arg means consider only full-width windows */
|
|
|
2871 if (!NILP (obj)
|
|
|
2872 && !window_full_width_p (p))
|
|
|
2873 break;
|
|
|
2874 /* Ignore dedicated windows and minibuffers. */
|
|
|
2875 if (MINI_WINDOW_P (p)
|
|
|
2876 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2877 break;
|
|
|
2878 if (NILP (best_window)
|
|
|
2879 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2880 > XINT (p->use_time)))
|
|
|
2881 best_window = w;
|
|
|
2882 break;
|
|
|
2883 }
|
|
|
2884
|
|
|
2885 case GET_BUFFER_MRU_WINDOW:
|
|
|
2886 {
|
|
|
2887 /* #### what about the first check in GET_LRU_WINDOW? */
|
|
|
2888 /* Ignore dedicated windows and minibuffers. */
|
|
|
2889 if (MINI_WINDOW_P (p)
|
|
|
2890 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2891 break;
|
|
|
2892
|
|
|
2893 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2894 {
|
|
|
2895 if (NILP (best_window)
|
|
|
2896 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2897 < XINT (p->use_time)))
|
|
|
2898 best_window = w;
|
|
|
2899 }
|
|
|
2900 break;
|
|
|
2901 }
|
|
|
2902
|
|
|
2903 case DELETE_OTHER_WINDOWS:
|
|
|
2904 {
|
|
|
2905 /* Don't delete the last window on a frame; this can
|
|
|
2906 happen when the minibuffer is selected, and would
|
|
|
2907 cause the frame to be deleted. */
|
|
|
2908 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w)))
|
|
|
2909 Fdelete_window (w, Qnil);
|
|
|
2910 break;
|
|
|
2911 }
|
|
|
2912
|
|
|
2913 case DELETE_BUFFER_WINDOWS:
|
|
|
2914 {
|
|
|
2915 if (EQ (p->buffer, obj))
|
|
|
2916 {
|
|
|
2917 struct frame *f = XFRAME (WINDOW_FRAME (p));
|
|
|
2918
|
|
|
2919 /* If this window is dedicated, and in a frame
|
|
|
2920 of its own, kill the frame. */
|
|
|
2921 if (EQ (w, FRAME_ROOT_WINDOW (f))
|
|
|
2922 && !NILP (p->dedicated)
|
|
1979
|
2923 && (allow_deletion_of_last_visible_frame
|
|
|
2924 || other_visible_frames (f)))
|
|
428
|
2925 {
|
|
|
2926 /* Skip the other windows on this frame.
|
|
|
2927 There might be one, the minibuffer! */
|
|
|
2928 if (! EQ (w, last_window))
|
|
|
2929 while (f == XFRAME (WINDOW_FRAME
|
|
|
2930 (XWINDOW (next_window))))
|
|
|
2931 {
|
|
|
2932 /* As we go, check for the end of the
|
|
|
2933 loop. We mustn't start going
|
|
|
2934 around a second time. */
|
|
|
2935 if (EQ (next_window, last_window))
|
|
|
2936 {
|
|
|
2937 last_window = w;
|
|
|
2938 break;
|
|
|
2939 }
|
|
|
2940 next_window = Fnext_window (next_window,
|
|
|
2941 mini ? Qt : Qnil,
|
|
|
2942 frame_arg, Qt);
|
|
|
2943 }
|
|
|
2944 /* Now we can safely delete the frame. */
|
|
|
2945 Fdelete_frame (WINDOW_FRAME (p), Qnil);
|
|
|
2946 }
|
|
|
2947 else
|
|
|
2948 /* If we're deleting the buffer displayed in
|
|
|
2949 the only window on the frame, find a new
|
|
|
2950 buffer to display there. */
|
|
|
2951 if (NILP (p->parent))
|
|
|
2952 {
|
|
|
2953 Lisp_Object new_buffer;
|
|
|
2954 new_buffer = Fother_buffer (obj, Qnil, Qnil);
|
|
|
2955 if (NILP (new_buffer))
|
|
|
2956 new_buffer = Fget_buffer_create (QSscratch);
|
|
440
|
2957 Fset_window_buffer (w, new_buffer, Qnil);
|
|
428
|
2958 if (EQ (w, Fselected_window (Qnil)))
|
|
|
2959 Fset_buffer (p->buffer);
|
|
|
2960 }
|
|
|
2961 else
|
|
|
2962 Fdelete_window (w, Qnil);
|
|
|
2963 }
|
|
|
2964 break;
|
|
|
2965 }
|
|
|
2966
|
|
|
2967 case GET_LARGEST_WINDOW:
|
|
|
2968 {
|
|
|
2969 /* Ignore dedicated windows and minibuffers. */
|
|
|
2970 if (MINI_WINDOW_P (p)
|
|
|
2971 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2972 break;
|
|
|
2973 {
|
|
|
2974 /* write the check as follows to avoid tripping
|
|
|
2975 error_check_window() --ben */
|
|
|
2976 struct window *b = NILP (best_window) ? 0 :
|
|
|
2977 XWINDOW (best_window);
|
|
|
2978 if (NILP (best_window)
|
|
|
2979 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p))
|
|
|
2980 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b))))
|
|
|
2981 best_window = w;
|
|
|
2982 }
|
|
|
2983 break;
|
|
|
2984 }
|
|
|
2985
|
|
|
2986 default:
|
|
|
2987 abort ();
|
|
|
2988 }
|
|
|
2989
|
|
|
2990 if (EQ (w, last_window))
|
|
|
2991 break;
|
|
|
2992
|
|
|
2993 w = next_window;
|
|
|
2994 }
|
|
|
2995 }
|
|
|
2996
|
|
|
2997 return type == GET_BUFFER_WINDOW_COUNT ? make_int (count) : best_window;
|
|
|
2998 }
|
|
|
2999
|
|
|
3000 #if 0 /* not currently used */
|
|
|
3001
|
|
|
3002 int
|
|
|
3003 buffer_window_count (struct buffer *b, struct frame *f)
|
|
|
3004 {
|
|
|
3005 Lisp_Object buffer, frame;
|
|
|
3006
|
|
793
|
3007 frame = wrap_frame (f);
|
|
|
3008 buffer = wrap_buffer (b);
|
|
428
|
3009
|
|
|
3010 return XINT (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1,
|
|
|
3011 Qnil));
|
|
|
3012 }
|
|
|
3013
|
|
|
3014 int
|
|
|
3015 buffer_window_mru (struct window *w)
|
|
|
3016 {
|
|
|
3017 Lisp_Object window =
|
|
|
3018 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil);
|
|
|
3019
|
|
|
3020 if (NILP (window))
|
|
|
3021 return 0;
|
|
|
3022 else if (XWINDOW (window) == w)
|
|
|
3023 return 1;
|
|
|
3024 else
|
|
|
3025 return 0;
|
|
|
3026 }
|
|
|
3027
|
|
|
3028 #endif
|
|
|
3029
|
|
|
3030
|
|
|
3031 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /*
|
|
|
3032 Return the window least recently selected or used for display.
|
|
444
|
3033
|
|
|
3034 By default, only the windows in the selected frame are considered.
|
|
|
3035 The optional argument WHICH-FRAMES changes this behavior:
|
|
|
3036 If optional argument WHICH-FRAMES is `visible', search all visible frames.
|
|
|
3037 If WHICH-FRAMES is 0, search all visible and iconified frames.
|
|
|
3038 If WHICH-FRAMES is t, search all frames.
|
|
|
3039 If WHICH-FRAMES is nil, search only the selected frame.
|
|
|
3040 If WHICH-FRAMES is a frame, search only that frame.
|
|
|
3041
|
|
|
3042 The optional argument WHICH-DEVICES further clarifies on which devices
|
|
|
3043 to search for frames as specified by WHICH-FRAMES. This value is only
|
|
|
3044 meaningful if WHICH-FRAMES is non-nil.
|
|
|
3045 If nil or omitted, search all devices on the selected console.
|
|
|
3046 If a device, only search that device.
|
|
|
3047 If a console, search all devices on that console.
|
|
|
3048 If a device type, search all devices of that type.
|
|
|
3049 If `window-system', search all devices on window-system consoles.
|
|
|
3050 Any other non-nil value means search all devices.
|
|
428
|
3051 */
|
|
444
|
3052 (which_frames, which_devices))
|
|
428
|
3053 {
|
|
|
3054 Lisp_Object w;
|
|
|
3055 /* First try for a non-dedicated window that is full-width */
|
|
444
|
3056 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 0, which_devices);
|
|
428
|
3057 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
3058 return w;
|
|
|
3059
|
|
|
3060 /* Then try for any non-dedicated window */
|
|
444
|
3061 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 0, which_devices);
|
|
428
|
3062 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
3063 return w;
|
|
|
3064
|
|
|
3065 #if 0
|
|
|
3066 /* FSFmacs never returns a dedicated window here. If we do,
|
|
|
3067 it makes `display-buffer' not work right. #### All of this
|
|
|
3068 shit is so disgusting and awful that it needs to be rethought
|
|
|
3069 from scratch. */
|
|
|
3070 /* then try for a dedicated window that is full-width */
|
|
444
|
3071 w = window_loop (GET_LRU_WINDOW, Qt, 0, which_frames, 1, which_devices);
|
|
428
|
3072 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
3073 return w;
|
|
|
3074
|
|
|
3075 /* If none of them, then all windows, dedicated or not. */
|
|
444
|
3076 w = window_loop (GET_LRU_WINDOW, Qnil, 0, which_frames, 1, which_devices);
|
|
428
|
3077
|
|
|
3078 /* At this point we damn well better have found something. */
|
|
|
3079 if (NILP (w)) abort ();
|
|
|
3080 #endif
|
|
|
3081
|
|
|
3082 return w;
|
|
|
3083 }
|
|
|
3084
|
|
|
3085 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /*
|
|
|
3086 Return the window largest in area.
|
|
444
|
3087
|
|
|
3088 By default, only the windows in the selected frame are considered.
|
|
|
3089 The optional argument WHICH-FRAMES changes this behavior:
|
|
|
3090 If optional argument WHICH-FRAMES is `visible', search all visible frames.
|
|
|
3091 If WHICH-FRAMES is 0, search all visible and iconified frames.
|
|
|
3092 If WHICH-FRAMES is t, search all frames.
|
|
|
3093 If WHICH-FRAMES is nil, search only the selected frame.
|
|
|
3094 If WHICH-FRAMES is a frame, search only that frame.
|
|
|
3095
|
|
|
3096 The optional argument WHICH-DEVICES further clarifies on which devices
|
|
|
3097 to search for frames as specified by WHICH-FRAMES. This value is only
|
|
|
3098 meaningful if WHICH-FRAMES is non-nil.
|
|
|
3099 If nil or omitted, search all devices on the selected console.
|
|
|
3100 If a device, only search that device.
|
|
|
3101 If a console, search all devices on that console.
|
|
|
3102 If a device type, search all devices of that type.
|
|
|
3103 If `window-system', search all devices on window-system consoles.
|
|
|
3104 Any other non-nil value means search all devices.
|
|
428
|
3105 */
|
|
444
|
3106 (which_frames, which_devices))
|
|
428
|
3107 {
|
|
|
3108 /* Don't search dedicated windows because FSFmacs doesn't.
|
|
|
3109 This stuff is all black magic so don't try to apply common
|
|
|
3110 sense to it. */
|
|
444
|
3111 return window_loop (GET_LARGEST_WINDOW, Qnil, 0,
|
|
|
3112 which_frames, 0, which_devices);
|
|
428
|
3113 }
|
|
|
3114
|
|
|
3115 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /*
|
|
|
3116 Return a window currently displaying BUFFER, or nil if none.
|
|
444
|
3117
|
|
|
3118 By default, only the windows in the selected frame are considered.
|
|
|
3119 The optional argument WHICH-FRAMES changes this behavior:
|
|
|
3120 If optional argument WHICH-FRAMES is `visible', search all visible frames.
|
|
|
3121 If WHICH-FRAMES is 0, search all visible and iconified frames.
|
|
|
3122 If WHICH-FRAMES is t, search all frames.
|
|
|
3123 If WHICH-FRAMES is nil, search only the selected frame.
|
|
|
3124 If WHICH-FRAMES is a frame, search only that frame.
|
|
|
3125
|
|
|
3126 The optional argument WHICH-DEVICES further clarifies on which devices
|
|
|
3127 to search for frames as specified by WHICH-FRAMES. This value is only
|
|
|
3128 meaningful if WHICH-FRAMES is non-nil.
|
|
|
3129 If nil or omitted, search all devices on the selected console.
|
|
|
3130 If a device, only search that device.
|
|
|
3131 If a console, search all devices on that console.
|
|
|
3132 If a device type, search all devices of that type.
|
|
|
3133 If `window-system', search all devices on window-system consoles.
|
|
|
3134 Any other non-nil value means search all devices.
|
|
428
|
3135 */
|
|
444
|
3136 (buffer, which_frames, which_devices))
|
|
428
|
3137 {
|
|
|
3138 buffer = Fget_buffer (buffer);
|
|
|
3139 if (BUFFERP (buffer))
|
|
|
3140 /* Search dedicated windows too. (Doesn't matter here anyway.) */
|
|
444
|
3141 return window_loop (GET_BUFFER_WINDOW, buffer, 1,
|
|
|
3142 which_frames, 1, which_devices);
|
|
428
|
3143 else
|
|
|
3144 return Qnil;
|
|
|
3145 }
|
|
|
3146
|
|
|
3147 /* These functions used to be `buffer-left-margin-pixel-width', etc.
|
|
|
3148 but there is no sensible way to implement those functions, since
|
|
|
3149 you can't in general derive a window from a buffer. */
|
|
|
3150
|
|
|
3151 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width,
|
|
|
3152 0, 1, 0, /*
|
|
|
3153 Return the width in pixels of the left outside margin of window WINDOW.
|
|
|
3154 If WINDOW is nil, the selected window is assumed.
|
|
|
3155 */
|
|
|
3156 (window))
|
|
|
3157 {
|
|
|
3158 return make_int (window_left_margin_width (decode_window (window)));
|
|
|
3159 }
|
|
|
3160
|
|
|
3161 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width,
|
|
|
3162 0, 1, 0, /*
|
|
|
3163 Return the width in pixels of the right outside margin of window WINDOW.
|
|
|
3164 If WINDOW is nil, the selected window is assumed.
|
|
|
3165 */
|
|
|
3166 (window))
|
|
|
3167 {
|
|
|
3168 return make_int (window_right_margin_width (decode_window (window)));
|
|
|
3169 }
|
|
|
3170
|
|
|
3171 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /*
|
|
|
3172 Make WINDOW (or the selected window) fill its frame.
|
|
|
3173 Only the frame WINDOW is on is affected.
|
|
|
3174 This function tries to reduce display jumps
|
|
|
3175 by keeping the text previously visible in WINDOW
|
|
|
3176 in the same place on the frame. Doing this depends on
|
|
|
3177 the value of (window-start WINDOW), so if calling this function
|
|
|
3178 in a program gives strange scrolling, make sure the window-start
|
|
|
3179 value is reasonable when this function is called.
|
|
|
3180 */
|
|
|
3181 (window))
|
|
|
3182 {
|
|
|
3183 struct window *w = decode_window (window);
|
|
1207
|
3184 struct buffer *b;
|
|
665
|
3185 Charbpos start_pos;
|
|
428
|
3186 int old_top = WINDOW_TOP (w);
|
|
|
3187
|
|
1207
|
3188 if (NILP (WINDOW_BUFFER (w)))
|
|
|
3189 invalid_operation ("Can't delete other windows of combination", window);
|
|
|
3190
|
|
793
|
3191 window = wrap_window (w);
|
|
1207
|
3192 b = XBUFFER (WINDOW_BUFFER (w));
|
|
428
|
3193
|
|
|
3194 if (MINI_WINDOW_P (w) && old_top > 0)
|
|
563
|
3195 invalid_operation ("Can't expand minibuffer to full frame", Qunbound);
|
|
428
|
3196
|
|
|
3197 /* Ignore dedicated windows. */
|
|
|
3198 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil);
|
|
|
3199
|
|
|
3200 start_pos = marker_position (w->start[CURRENT_DISP]);
|
|
|
3201
|
|
|
3202 /* Try to minimize scrolling, by setting the window start to the
|
|
|
3203 point which will cause the text at the old window start to be at
|
|
|
3204 the same place on the frame. But don't try to do this if the
|
|
|
3205 window start is outside the visible portion (as might happen when
|
|
|
3206 the display is not current, due to typeahead). */
|
|
|
3207 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b)
|
|
|
3208 && !MINI_WINDOW_P (w))
|
|
|
3209 {
|
|
665
|
3210 Charbpos new_start = start_with_line_at_pixpos (w, start_pos, old_top);
|
|
428
|
3211
|
|
|
3212 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b))
|
|
|
3213 {
|
|
|
3214 Fset_marker (w->start[CURRENT_DISP], make_int (new_start),
|
|
|
3215 w->buffer);
|
|
|
3216 w->start_at_line_beg = beginning_of_line_p (b, new_start);
|
|
|
3217 }
|
|
|
3218 /* We need to do this, so that the window-scroll-functions
|
|
|
3219 get called. */
|
|
|
3220 w->force_start = 1;
|
|
|
3221 }
|
|
|
3222
|
|
|
3223 return Qnil;
|
|
|
3224 }
|
|
|
3225
|
|
|
3226 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3,
|
|
|
3227 "bDelete windows on (buffer): ", /*
|
|
|
3228 Delete all windows showing BUFFER.
|
|
444
|
3229
|
|
|
3230 Optional second argument WHICH-FRAMES controls which frames are affected.
|
|
428
|
3231 If nil or omitted, delete all windows showing BUFFER in any frame.
|
|
|
3232 If t, delete only windows showing BUFFER in the selected frame.
|
|
|
3233 If `visible', delete all windows showing BUFFER in any visible frame.
|
|
|
3234 If a frame, delete only windows showing BUFFER in that frame.
|
|
444
|
3235 Warning: WHICH-FRAMES has the same meaning as with `next-window',
|
|
|
3236 except that the meanings of nil and t are reversed.
|
|
|
3237
|
|
|
3238 The optional third argument WHICH-DEVICES further clarifies on which
|
|
|
3239 devices to search for frames as specified by WHICH-FRAMES. This value
|
|
|
3240 is only meaningful if WHICH-FRAMES is not t.
|
|
|
3241 If nil or omitted, search only the selected console.
|
|
|
3242 If a device, only search that device.
|
|
|
3243 If a console, search all devices on that console.
|
|
|
3244 If a device type, search all devices of that type.
|
|
|
3245 If `window-system', search all devices on a window system.
|
|
|
3246 Any other non-nil value means search all devices.
|
|
428
|
3247 */
|
|
444
|
3248 (buffer, which_frames, which_devices))
|
|
428
|
3249 {
|
|
|
3250 /* This function can GC */
|
|
444
|
3251 buffer = Fget_buffer (buffer);
|
|
|
3252 CHECK_BUFFER (buffer);
|
|
|
3253
|
|
|
3254 /* WHICH-FRAMES values t and nil mean the opposite of what
|
|
|
3255 window_loop expects. */
|
|
|
3256 if (EQ (which_frames, Qnil))
|
|
|
3257 which_frames = Qt;
|
|
|
3258 else if (EQ (which_frames, Qt))
|
|
|
3259 which_frames = Qnil;
|
|
|
3260
|
|
|
3261 /* Ignore dedicated windows. */
|
|
|
3262 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0,
|
|
|
3263 which_frames, 0, which_devices);
|
|
428
|
3264 return Qnil;
|
|
|
3265 }
|
|
|
3266
|
|
448
|
3267 static Lisp_Object
|
|
|
3268 list_windows (struct window *w, Lisp_Object value)
|
|
|
3269 {
|
|
|
3270 for (;;)
|
|
|
3271 {
|
|
|
3272 if (!NILP (w->hchild))
|
|
|
3273 value = list_windows (XWINDOW (w->hchild), value);
|
|
|
3274 else if (!NILP (w->vchild))
|
|
|
3275 value = list_windows (XWINDOW (w->vchild), value);
|
|
|
3276 else
|
|
|
3277 {
|
|
793
|
3278 Lisp_Object window = wrap_window (w);
|
|
|
3279
|
|
448
|
3280 value = Fcons (window, value);
|
|
|
3281 }
|
|
|
3282 if (NILP (w->next))
|
|
|
3283 break;
|
|
|
3284 w = XWINDOW (w->next);
|
|
|
3285 }
|
|
|
3286 return value;
|
|
|
3287 }
|
|
|
3288
|
|
|
3289 static Lisp_Object
|
|
|
3290 list_all_windows (Lisp_Object frame_spec, Lisp_Object device_spec)
|
|
|
3291 {
|
|
|
3292 Lisp_Object devcons, concons;
|
|
|
3293 Lisp_Object retval = Qnil;
|
|
|
3294
|
|
|
3295 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
3296 {
|
|
|
3297 Lisp_Object frame_list, the_window;
|
|
|
3298 Lisp_Object device, tail;
|
|
|
3299
|
|
|
3300 device = XCAR (devcons);
|
|
|
3301 frame_list = DEVICE_FRAME_LIST (XDEVICE (device));
|
|
|
3302
|
|
|
3303 LIST_LOOP (tail, frame_list)
|
|
|
3304 {
|
|
|
3305 if ((NILP (frame_spec)
|
|
|
3306 && !EQ (XCAR (tail), DEVICE_SELECTED_FRAME (XDEVICE (device))))
|
|
|
3307 || (EQ (frame_spec, Qvisible)
|
|
|
3308 && !FRAME_VISIBLE_P (XFRAME (XCAR (tail))))
|
|
|
3309 || (FRAMEP (frame_spec)
|
|
|
3310 && !EQ (frame_spec, XCAR (tail)))
|
|
|
3311 || (!NILP (frame_spec)
|
|
|
3312 && !device_matches_device_spec (device,
|
|
|
3313 NILP (device_spec) ?
|
|
|
3314 Vselected_console :
|
|
|
3315 device_spec)))
|
|
|
3316 continue;
|
|
|
3317 the_window = FRAME_ROOT_WINDOW (XFRAME (XCAR (tail)));
|
|
|
3318 retval = list_windows (XWINDOW (the_window), retval);
|
|
|
3319 }
|
|
|
3320 }
|
|
|
3321 return Fnreverse (retval);
|
|
|
3322 }
|
|
|
3323
|
|
444
|
3324 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 3,
|
|
428
|
3325 "bReplace buffer in windows: ", /*
|
|
|
3326 Replace BUFFER with some other buffer in all windows showing it.
|
|
444
|
3327
|
|
|
3328 Optional second argument WHICH-FRAMES controls which frames are affected.
|
|
|
3329 If nil or omitted, all frames are affected.
|
|
|
3330 If t, only the selected frame is affected.
|
|
|
3331 If `visible', all visible frames are affected.
|
|
|
3332 If a frame, only that frame is affected.
|
|
|
3333 Warning: WHICH-FRAMES has the same meaning as with `next-window',
|
|
|
3334 except that the meanings of nil and t are reversed.
|
|
|
3335
|
|
|
3336 The optional third argument WHICH-DEVICES further clarifies on which
|
|
|
3337 devices to search for frames as specified by WHICH-FRAMES. This value
|
|
|
3338 is only meaningful if WHICH-FRAMES is not t.
|
|
|
3339 If nil or omitted, search only the selected console.
|
|
|
3340 If a device, only search that device.
|
|
|
3341 If a console, search all devices on that console.
|
|
|
3342 If a device type, search all devices of that type.
|
|
|
3343 If `window-system', search all devices on a window system.
|
|
|
3344 Any other non-nil value means search all devices.
|
|
428
|
3345 */
|
|
444
|
3346 (buffer, which_frames, which_devices))
|
|
428
|
3347 {
|
|
|
3348 /* This function can GC */
|
|
448
|
3349 Lisp_Object window_list;
|
|
|
3350 Lisp_Object tail;
|
|
|
3351 struct gcpro gcpro1, gcpro2;
|
|
|
3352
|
|
444
|
3353 if (EQ (which_frames, Qnil))
|
|
|
3354 which_frames = Qt;
|
|
|
3355 else if (EQ (which_frames, Qt))
|
|
|
3356 which_frames = Qnil;
|
|
448
|
3357 window_list = list_all_windows (which_frames, which_devices);
|
|
|
3358
|
|
|
3359 buffer = Fget_buffer (buffer);
|
|
|
3360 CHECK_BUFFER (buffer);
|
|
|
3361
|
|
|
3362 GCPRO2 (window_list, buffer);
|
|
|
3363 LIST_LOOP (tail, window_list)
|
|
|
3364 {
|
|
|
3365 Lisp_Object window = XCAR (tail);
|
|
|
3366 if (!MINI_WINDOW_P (XWINDOW (window))
|
|
|
3367 && EQ (XWINDOW (window)->buffer, buffer))
|
|
|
3368 {
|
|
|
3369 Lisp_Object another_buffer = Fother_buffer (buffer, Qnil, Qnil);
|
|
|
3370 Lisp_Object frame = WINDOW_FRAME (XWINDOW (window));
|
|
|
3371 if (NILP (another_buffer))
|
|
|
3372 another_buffer = Fget_buffer_create (QSscratch);
|
|
|
3373 if (!NILP (XWINDOW (window)->dedicated)
|
|
|
3374 && EQ (window,
|
|
|
3375 FRAME_ROOT_WINDOW (XFRAME (frame)))
|
|
1979
|
3376 && (allow_deletion_of_last_visible_frame
|
|
|
3377 || other_visible_frames (XFRAME (frame))))
|
|
448
|
3378 {
|
|
|
3379 delete_frame_internal (XFRAME (frame), 0, 0, 0); /* GC */
|
|
|
3380 }
|
|
|
3381 else
|
|
|
3382 {
|
|
|
3383 Fset_window_buffer (window, another_buffer, Qnil);
|
|
|
3384 if (EQ (window, Fselected_window (Qnil)))
|
|
|
3385 Fset_buffer (XWINDOW (window)->buffer);
|
|
|
3386 }
|
|
|
3387 }
|
|
|
3388 }
|
|
|
3389 UNGCPRO;
|
|
428
|
3390 return Qnil;
|
|
|
3391 }
|
|
|
3392
|
|
|
3393 /* The smallest acceptable dimensions for a window. Anything smaller
|
|
|
3394 might crash Emacs. */
|
|
|
3395 #define MIN_SAFE_WINDOW_WIDTH (2)
|
|
|
3396 #define MIN_SAFE_WINDOW_HEIGHT (2)
|
|
|
3397
|
|
|
3398 /* Make sure that window_min_height and window_min_width are
|
|
|
3399 not too small; if they are, set them to safe minima. */
|
|
|
3400
|
|
|
3401 static void
|
|
|
3402 check_min_window_sizes (void)
|
|
|
3403 {
|
|
|
3404 /* Smaller values might permit a crash. */
|
|
|
3405 if (window_min_width < MIN_SAFE_WINDOW_WIDTH)
|
|
|
3406 window_min_width = MIN_SAFE_WINDOW_WIDTH;
|
|
|
3407 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT)
|
|
|
3408 window_min_height = MIN_SAFE_WINDOW_HEIGHT;
|
|
|
3409 }
|
|
|
3410
|
|
440
|
3411 static int
|
|
|
3412 frame_min_height (struct frame *frame)
|
|
|
3413 {
|
|
|
3414 /* For height, we have to see whether the frame has a minibuffer, and
|
|
|
3415 whether it wants a modeline. */
|
|
|
3416 return (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1
|
|
|
3417 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT
|
|
|
3418 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1);
|
|
|
3419 }
|
|
|
3420
|
|
|
3421 /* Return non-zero if both frame sizes are less than or equal to
|
|
|
3422 minimal allowed values. ROWS and COLS are in characters */
|
|
|
3423 int
|
|
|
3424 frame_size_valid_p (struct frame *frame, int rows, int cols)
|
|
|
3425 {
|
|
|
3426 return (rows >= frame_min_height (frame)
|
|
|
3427 && cols >= MIN_SAFE_WINDOW_WIDTH);
|
|
|
3428 }
|
|
|
3429
|
|
|
3430 /* Return non-zero if both frame sizes are less than or equal to
|
|
|
3431 minimal allowed values. WIDTH and HEIGHT are in pixels */
|
|
|
3432 int
|
|
|
3433 frame_pixsize_valid_p (struct frame *frame, int width, int height)
|
|
|
3434 {
|
|
|
3435 int rows, cols;
|
|
|
3436 pixel_to_real_char_size (frame, width, height, &cols, &rows);
|
|
|
3437 return frame_size_valid_p (frame, rows, cols);
|
|
|
3438 }
|
|
|
3439
|
|
428
|
3440 /* If *ROWS or *COLS are too small a size for FRAME, set them to the
|
|
|
3441 minimum allowable size. */
|
|
|
3442 void
|
|
|
3443 check_frame_size (struct frame *frame, int *rows, int *cols)
|
|
|
3444 {
|
|
440
|
3445 int min_height = frame_min_height (frame);
|
|
428
|
3446
|
|
|
3447 if (*rows < min_height)
|
|
|
3448 *rows = min_height;
|
|
|
3449 if (*cols < MIN_SAFE_WINDOW_WIDTH)
|
|
|
3450 *cols = MIN_SAFE_WINDOW_WIDTH;
|
|
|
3451 }
|
|
|
3452
|
|
|
3453 /* Normally the window is deleted if it gets too small.
|
|
|
3454 nodelete nonzero means do not do this.
|
|
|
3455 (The caller should check later and do so if appropriate) */
|
|
|
3456 static void
|
|
|
3457 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete,
|
|
|
3458 int set_height)
|
|
|
3459 {
|
|
|
3460 struct window *w = XWINDOW (window);
|
|
|
3461 struct frame *f = XFRAME (w->frame);
|
|
|
3462 struct window *c;
|
|
|
3463 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w));
|
|
|
3464 Lisp_Object child, minor_kid, major_kid;
|
|
|
3465 int minsize;
|
|
|
3466 int line_size;
|
|
|
3467 int defheight, defwidth;
|
|
|
3468
|
|
|
3469 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
3470 functions should be called. */
|
|
|
3471 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3472 line_size = (set_height ? defheight : defwidth);
|
|
|
3473
|
|
|
3474 check_min_window_sizes ();
|
|
|
3475
|
|
|
3476 minsize = (set_height ? window_min_height : window_min_width);
|
|
|
3477 minsize *= line_size;
|
|
|
3478
|
|
|
3479 if (!nodelete
|
|
|
3480 && !TOP_LEVEL_WINDOW_P (w)
|
|
|
3481 && new_pixsize < minsize)
|
|
|
3482 {
|
|
|
3483 Fdelete_window (window, Qnil);
|
|
|
3484 return;
|
|
|
3485 }
|
|
|
3486
|
|
|
3487 SET_LAST_MODIFIED (w, 0);
|
|
|
3488 SET_LAST_FACECHANGE (w);
|
|
|
3489 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */
|
|
|
3490 if (set_height)
|
|
|
3491 {
|
|
|
3492 WINDOW_HEIGHT (w) = new_pixsize;
|
|
|
3493 major_kid = w->vchild;
|
|
|
3494 minor_kid = w->hchild;
|
|
|
3495 }
|
|
|
3496 else
|
|
|
3497 {
|
|
|
3498 WINDOW_WIDTH (w) = new_pixsize;
|
|
|
3499 major_kid = w->hchild;
|
|
|
3500 minor_kid = w->vchild;
|
|
|
3501 }
|
|
|
3502
|
|
|
3503 if (!NILP (minor_kid))
|
|
|
3504 {
|
|
|
3505 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3506 {
|
|
|
3507 if (set_height)
|
|
|
3508 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w);
|
|
|
3509 else
|
|
|
3510 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w);
|
|
|
3511
|
|
|
3512 set_window_pixsize (child, new_pixsize, nodelete, set_height);
|
|
|
3513 }
|
|
|
3514 }
|
|
|
3515 else if (!NILP (major_kid))
|
|
|
3516 {
|
|
|
3517 int last_pos, last_old_pos, pos, old_pos, first;
|
|
|
3518 int pixel_adj_left = new_pixsize - old_pixsize;
|
|
|
3519 int div_val = old_pixsize << 1;
|
|
|
3520
|
|
|
3521 /*
|
|
|
3522 * Previously we bailed out here if there was no size change.
|
|
|
3523 * (pixel_adj_left == 0) But this broke toolbar updates. If a
|
|
|
3524 * toolbar appears or disappears, windows may not change size,
|
|
|
3525 * but their top and left coordinates need to be updated.
|
|
|
3526 *
|
|
|
3527 * So we don't bail until after the loop below.
|
|
|
3528 */
|
|
|
3529
|
|
|
3530 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w));
|
|
|
3531 last_old_pos = 0;
|
|
|
3532
|
|
|
3533 for (child = major_kid; !NILP (child); child = c->next)
|
|
|
3534 {
|
|
|
3535 c = XWINDOW (child);
|
|
|
3536
|
|
|
3537 if (set_height)
|
|
|
3538 {
|
|
|
3539 old_pos = last_old_pos + WINDOW_HEIGHT (c);
|
|
|
3540 WINDOW_TOP (c) = last_pos;
|
|
|
3541 }
|
|
|
3542 else
|
|
|
3543 {
|
|
|
3544 old_pos = last_old_pos + WINDOW_WIDTH (c);
|
|
|
3545 WINDOW_LEFT (c) = last_pos;
|
|
|
3546 }
|
|
|
3547
|
|
|
3548 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val;
|
|
|
3549 /* All but the last window should have a height which is
|
|
|
3550 a multiple of the default line height. */
|
|
|
3551 if (!NILP (c->next))
|
|
|
3552 pos = (pos / line_size) * line_size;
|
|
|
3553
|
|
|
3554 /* Avoid confusion: don't delete child if it becomes too small */
|
|
|
3555 set_window_pixsize (child, pos + first - last_pos, 1, set_height);
|
|
|
3556
|
|
|
3557 last_pos = pos + first;
|
|
|
3558 last_old_pos = old_pos;
|
|
|
3559 }
|
|
|
3560
|
|
|
3561 /* Sometimes we may get called with our old size. In that case
|
|
|
3562 we don't need to do anything else. */
|
|
|
3563 if (!pixel_adj_left)
|
|
|
3564 return;
|
|
|
3565
|
|
|
3566 /* Now delete any children that became too small. */
|
|
|
3567 if (!nodelete)
|
|
|
3568 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3569 {
|
|
|
3570 if (set_height)
|
|
|
3571 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0);
|
|
|
3572 else
|
|
|
3573 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0);
|
|
|
3574 }
|
|
|
3575 }
|
|
|
3576 }
|
|
|
3577
|
|
|
3578 /* Set the height of WINDOW and all its inferiors. */
|
|
|
3579 void
|
|
|
3580 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete)
|
|
|
3581 {
|
|
|
3582 set_window_pixsize (window, new_pixheight, nodelete, 1);
|
|
|
3583 }
|
|
|
3584
|
|
|
3585 /* Recursively set width of WINDOW and its inferiors. */
|
|
|
3586 void
|
|
|
3587 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete)
|
|
|
3588 {
|
|
|
3589 set_window_pixsize (window, new_pixwidth, nodelete, 0);
|
|
|
3590 }
|
|
|
3591
|
|
|
3592
|
|
|
3593 static int window_select_count;
|
|
|
3594
|
|
440
|
3595 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 3, 0, /*
|
|
428
|
3596 Make WINDOW display BUFFER as its contents.
|
|
|
3597 BUFFER can be a buffer or buffer name.
|
|
440
|
3598
|
|
442
|
3599 With non-nil optional argument NORECORD, do not modify the
|
|
440
|
3600 global or per-frame buffer ordering.
|
|
428
|
3601 */
|
|
440
|
3602 (window, buffer, norecord))
|
|
428
|
3603 {
|
|
|
3604 Lisp_Object tem;
|
|
|
3605 struct window *w = decode_window (window);
|
|
448
|
3606 int old_buffer_local_face_property = 0;
|
|
428
|
3607
|
|
|
3608 buffer = Fget_buffer (buffer);
|
|
|
3609 CHECK_BUFFER (buffer);
|
|
|
3610
|
|
|
3611 if (!BUFFER_LIVE_P (XBUFFER (buffer)))
|
|
563
|
3612 invalid_operation ("Attempt to display deleted buffer", Qunbound);
|
|
428
|
3613
|
|
|
3614 tem = w->buffer;
|
|
|
3615 if (NILP (tem))
|
|
563
|
3616 invalid_operation ("Window is deleted", Qunbound);
|
|
428
|
3617 else if (EQ (tem, buffer))
|
|
|
3618 return Qnil;
|
|
|
3619 else if (! EQ (tem, Qt)) /* w->buffer is t when the window
|
|
|
3620 is first being set up. */
|
|
|
3621 {
|
|
|
3622 if (!NILP (w->dedicated) && !EQ (tem, buffer))
|
|
563
|
3623 signal_error (Qinvalid_operation, "Window is dedicated to buffer", tem);
|
|
428
|
3624
|
|
448
|
3625 old_buffer_local_face_property =
|
|
|
3626 XBUFFER (w->buffer)->buffer_local_face_property;
|
|
428
|
3627 unshow_buffer (w);
|
|
|
3628 }
|
|
|
3629
|
|
|
3630 w->buffer = buffer;
|
|
|
3631 w->window_end_pos[CURRENT_DISP] = 0;
|
|
|
3632 w->hscroll = 0;
|
|
|
3633 w->modeline_hscroll = 0;
|
|
844
|
3634 #if 0 /* pre point caches */
|
|
428
|
3635 Fset_marker (w->pointm[CURRENT_DISP],
|
|
|
3636 make_int (BUF_PT (XBUFFER (buffer))),
|
|
|
3637 buffer);
|
|
|
3638 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
3639 make_int (XBUFFER (buffer)->last_window_start),
|
|
|
3640 buffer);
|
|
844
|
3641 #else
|
|
|
3642 {
|
|
|
3643 Lisp_Object marker = Fgethash (buffer, w->saved_point_cache, Qnil);
|
|
|
3644 Lisp_Object newpoint =
|
|
|
3645 !NILP (marker) ? make_int (marker_position (marker)) :
|
|
|
3646 make_int (BUF_PT (XBUFFER (buffer)));
|
|
|
3647 /* Previously, we had in here set-window-point, which did one of the
|
|
|
3648 following two, but not both. However, that could result in pointm
|
|
|
3649 being in a different buffer from the window's buffer! Probably
|
|
|
3650 not a travesty since it always occurred when the window was
|
|
|
3651 selected, meaning its value of point was ignored in favor of the
|
|
|
3652 buffer's; but it tripped an assert() in unshow_buffer(). */
|
|
|
3653 set_marker_restricted (w->pointm[CURRENT_DISP], newpoint, buffer);
|
|
|
3654 if (EQ (wrap_window (w), Fselected_window (Qnil)))
|
|
|
3655 Fgoto_char (newpoint, buffer); /* this will automatically clip to
|
|
|
3656 accessible */
|
|
|
3657 marker = Fgethash (buffer, w->saved_last_window_start_cache, Qnil);
|
|
|
3658 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
3659 !NILP (marker) ?
|
|
|
3660 make_int (marker_position (marker)) :
|
|
|
3661 make_int (XBUFFER (buffer)->last_window_start),
|
|
|
3662 buffer);
|
|
|
3663 }
|
|
|
3664 #endif
|
|
|
3665
|
|
428
|
3666 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer);
|
|
|
3667 /* set start_at_line_beg correctly. GE */
|
|
844
|
3668 w->start_at_line_beg =
|
|
|
3669 beginning_of_line_p (XBUFFER (buffer),
|
|
|
3670 marker_position (w->start[CURRENT_DISP]));
|
|
|
3671 w->force_start = 0; /* XEmacs fix */
|
|
428
|
3672 SET_LAST_MODIFIED (w, 1);
|
|
|
3673 SET_LAST_FACECHANGE (w);
|
|
|
3674 MARK_WINDOWS_CHANGED (w);
|
|
448
|
3675 {
|
|
|
3676 int new_buffer_local_face_property =
|
|
|
3677 XBUFFER (w->buffer)->buffer_local_face_property;
|
|
|
3678
|
|
|
3679 if (new_buffer_local_face_property
|
|
|
3680 || new_buffer_local_face_property != old_buffer_local_face_property)
|
|
|
3681 MARK_WINDOW_FACES_CHANGED (w);
|
|
|
3682 }
|
|
428
|
3683 recompute_all_cached_specifiers_in_window (w);
|
|
|
3684 if (EQ (window, Fselected_window (Qnil)))
|
|
|
3685 {
|
|
440
|
3686 if (NILP (norecord))
|
|
|
3687 Frecord_buffer (buffer);
|
|
|
3688
|
|
428
|
3689 Fset_buffer (buffer);
|
|
|
3690 }
|
|
|
3691 return Qnil;
|
|
|
3692 }
|
|
|
3693
|
|
|
3694 DEFUN ("select-window", Fselect_window, 1, 2, 0, /*
|
|
|
3695 Select WINDOW. Most editing will apply to WINDOW's buffer.
|
|
|
3696 The main editor command loop selects the buffer of the selected window
|
|
|
3697 before each command.
|
|
|
3698
|
|
442
|
3699 With non-nil optional argument NORECORD, do not modify the
|
|
428
|
3700 global or per-frame buffer ordering.
|
|
|
3701 */
|
|
|
3702 (window, norecord))
|
|
|
3703 {
|
|
|
3704 struct window *w;
|
|
|
3705 Lisp_Object old_selected_window = Fselected_window (Qnil);
|
|
|
3706
|
|
|
3707 CHECK_LIVE_WINDOW (window);
|
|
|
3708 w = XWINDOW (window);
|
|
|
3709
|
|
|
3710 /* we have already caught dead-window errors */
|
|
|
3711 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
563
|
3712 invalid_operation ("Trying to select non-leaf window", Qunbound);
|
|
428
|
3713
|
|
|
3714 w->use_time = make_int (++window_select_count);
|
|
442
|
3715
|
|
428
|
3716 if (EQ (window, old_selected_window))
|
|
|
3717 return window;
|
|
|
3718
|
|
|
3719 /* deselect the old window, if it exists (it might not exist if
|
|
|
3720 the selected device has no frames, which occurs at startup) */
|
|
|
3721 if (!NILP (old_selected_window))
|
|
|
3722 {
|
|
|
3723 struct window *ow = XWINDOW (old_selected_window);
|
|
|
3724
|
|
|
3725 Fset_marker (ow->pointm[CURRENT_DISP],
|
|
|
3726 make_int (BUF_PT (XBUFFER (ow->buffer))),
|
|
|
3727 ow->buffer);
|
|
|
3728
|
|
|
3729 MARK_WINDOWS_CHANGED (ow);
|
|
|
3730 }
|
|
|
3731
|
|
|
3732 /* now select the window's frame */
|
|
|
3733 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window);
|
|
|
3734
|
|
|
3735 select_frame_1 (WINDOW_FRAME (w));
|
|
|
3736
|
|
|
3737 /* also select the window's buffer */
|
|
|
3738 if (NILP (norecord))
|
|
|
3739 Frecord_buffer (w->buffer);
|
|
|
3740 Fset_buffer (w->buffer);
|
|
|
3741
|
|
|
3742 /* Go to the point recorded in the window.
|
|
|
3743 This is important when the buffer is in more
|
|
|
3744 than one window. It also matters when
|
|
|
3745 redisplay_window has altered point after scrolling,
|
|
|
3746 because it makes the change only in the window. */
|
|
|
3747 {
|
|
665
|
3748 Charbpos new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
428
|
3749 if (new_point < BUF_BEGV (current_buffer))
|
|
|
3750 new_point = BUF_BEGV (current_buffer);
|
|
|
3751 else if (new_point > BUF_ZV (current_buffer))
|
|
|
3752 new_point = BUF_ZV (current_buffer);
|
|
|
3753
|
|
|
3754 BUF_SET_PT (current_buffer, new_point);
|
|
|
3755 }
|
|
|
3756
|
|
|
3757 MARK_WINDOWS_CHANGED (w);
|
|
|
3758
|
|
|
3759 return window;
|
|
|
3760 }
|
|
|
3761
|
|
|
3762 Lisp_Object
|
|
|
3763 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p,
|
|
|
3764 Lisp_Object override_frame)
|
|
|
3765 {
|
|
|
3766 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame);
|
|
|
3767 }
|
|
|
3768
|
|
|
3769 void
|
|
|
3770 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame)
|
|
|
3771 {
|
|
|
3772 /* This function can GC */
|
|
|
3773 Lisp_Object window;
|
|
|
3774 struct window *w;
|
|
|
3775 struct buffer *b = XBUFFER (buf);
|
|
|
3776
|
|
|
3777 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b);
|
|
|
3778 widen_buffer (b, 0);
|
|
|
3779 BUF_SET_PT (b, BUF_BEG (b));
|
|
|
3780
|
|
|
3781 if (!NILP (Vtemp_buffer_show_function))
|
|
|
3782 call1 (Vtemp_buffer_show_function, buf);
|
|
|
3783 else
|
|
|
3784 {
|
|
|
3785 window = display_buffer (buf, Qnil, same_frame);
|
|
|
3786
|
|
|
3787 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil)))
|
|
|
3788 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window)));
|
|
|
3789
|
|
|
3790 Vminibuffer_scroll_window = window;
|
|
|
3791 w = XWINDOW (window);
|
|
|
3792 w->hscroll = 0;
|
|
|
3793 w->modeline_hscroll = 0;
|
|
|
3794 set_marker_restricted (w->start[CURRENT_DISP], make_int (1), buf);
|
|
|
3795 set_marker_restricted (w->pointm[CURRENT_DISP], make_int (1), buf);
|
|
|
3796 set_marker_restricted (w->sb_point, make_int (1), buf);
|
|
|
3797 }
|
|
|
3798 }
|
|
|
3799
|
|
|
3800 static void
|
|
|
3801 make_dummy_parent (Lisp_Object window)
|
|
|
3802 {
|
|
|
3803 Lisp_Object new;
|
|
|
3804 struct window *o = XWINDOW (window);
|
|
|
3805 struct window *p = alloc_lcrecord_type (struct window, &lrecord_window);
|
|
|
3806
|
|
793
|
3807 new = wrap_window (p);
|
|
428
|
3808 copy_lcrecord (p, o);
|
|
|
3809
|
|
|
3810 /* Don't copy the pointers to the line start cache or the face
|
|
|
3811 instances. */
|
|
|
3812 p->line_start_cache = Dynarr_new (line_start_cache);
|
|
|
3813 p->face_cachels = Dynarr_new (face_cachel);
|
|
|
3814 p->glyph_cachels = Dynarr_new (glyph_cachel);
|
|
442
|
3815 p->subwindow_instance_cache =
|
|
450
|
3816 make_image_instance_cache_hash_table ();
|
|
428
|
3817
|
|
|
3818 /* Put new into window structure in place of window */
|
|
|
3819 replace_window (window, new);
|
|
|
3820
|
|
|
3821 o->next = Qnil;
|
|
|
3822 o->prev = Qnil;
|
|
|
3823 o->vchild = Qnil;
|
|
|
3824 o->hchild = Qnil;
|
|
|
3825 o->parent = new;
|
|
|
3826
|
|
|
3827 p->start[CURRENT_DISP] = Qnil;
|
|
|
3828 p->start[DESIRED_DISP] = Qnil;
|
|
|
3829 p->start[CMOTION_DISP] = Qnil;
|
|
|
3830 p->pointm[CURRENT_DISP] = Qnil;
|
|
|
3831 p->pointm[DESIRED_DISP] = Qnil;
|
|
|
3832 p->pointm[CMOTION_DISP] = Qnil;
|
|
|
3833 p->sb_point = Qnil;
|
|
844
|
3834 p->saved_point_cache = make_saved_buffer_point_cache ();
|
|
|
3835 p->saved_last_window_start_cache = make_saved_buffer_point_cache ();
|
|
428
|
3836 p->buffer = Qnil;
|
|
|
3837 }
|
|
|
3838
|
|
|
3839 DEFUN ("split-window", Fsplit_window, 0, 3, "", /*
|
|
|
3840 Split WINDOW, putting SIZE lines in the first of the pair.
|
|
444
|
3841 WINDOW defaults to the selected one and SIZE to half its size.
|
|
707
|
3842 If optional third arg HORFLAG is non-nil, split side by side and put
|
|
|
3843 SIZE columns in the first of the pair. The newly created window is
|
|
|
3844 returned.
|
|
428
|
3845 */
|
|
444
|
3846 (window, size, horflag))
|
|
428
|
3847 {
|
|
|
3848 Lisp_Object new;
|
|
|
3849 struct window *o, *p;
|
|
|
3850 struct frame *f;
|
|
444
|
3851 int csize;
|
|
428
|
3852 int psize;
|
|
|
3853
|
|
|
3854 if (NILP (window))
|
|
|
3855 window = Fselected_window (Qnil);
|
|
|
3856 else
|
|
|
3857 CHECK_LIVE_WINDOW (window);
|
|
|
3858
|
|
|
3859 o = XWINDOW (window);
|
|
|
3860 f = XFRAME (WINDOW_FRAME (o));
|
|
|
3861
|
|
444
|
3862 if (NILP (size))
|
|
428
|
3863 {
|
|
|
3864 if (!NILP (horflag))
|
|
|
3865 /* In the new scheme, we are symmetric with respect to separators
|
|
|
3866 so there is no need to do weird things here. */
|
|
|
3867 {
|
|
956
|
3868 psize = (WINDOW_WIDTH (o) + window_divider_width (o)) >> 1;
|
|
444
|
3869 csize = window_pixel_width_to_char_width (o, psize, 0);
|
|
428
|
3870 }
|
|
|
3871 else
|
|
|
3872 {
|
|
|
3873 psize = WINDOW_HEIGHT (o) >> 1;
|
|
444
|
3874 csize = window_pixel_height_to_char_height (o, psize, 1);
|
|
428
|
3875 }
|
|
|
3876 }
|
|
|
3877 else
|
|
|
3878 {
|
|
444
|
3879 CHECK_INT (size);
|
|
|
3880 csize = XINT (size);
|
|
428
|
3881 if (!NILP (horflag))
|
|
444
|
3882 psize = window_char_width_to_pixel_width (o, csize, 0);
|
|
428
|
3883 else
|
|
444
|
3884 psize = window_char_height_to_pixel_height (o, csize, 1);
|
|
428
|
3885 }
|
|
|
3886
|
|
|
3887 if (MINI_WINDOW_P (o))
|
|
563
|
3888 invalid_operation ("Attempt to split minibuffer window", Qunbound);
|
|
428
|
3889 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o))))
|
|
563
|
3890 invalid_operation ("Attempt to split unsplittable frame", Qunbound);
|
|
428
|
3891
|
|
|
3892 check_min_window_sizes ();
|
|
|
3893
|
|
|
3894 if (NILP (horflag))
|
|
|
3895 {
|
|
444
|
3896 if (csize < window_min_height)
|
|
563
|
3897 signal_error (Qinvalid_operation, "Window height too small (after splitting)", make_int (csize));
|
|
444
|
3898 if (csize + window_min_height > window_char_height (o, 1))
|
|
563
|
3899 signal_error (Qinvalid_operation, "Window height too small (after splitting)",
|
|
|
3900 make_int (window_char_height (o, 1) - csize));
|
|
428
|
3901 if (NILP (o->parent)
|
|
|
3902 || NILP (XWINDOW (o->parent)->vchild))
|
|
|
3903 {
|
|
|
3904 make_dummy_parent (window);
|
|
448
|
3905 #if 0
|
|
|
3906 /* #### I can't understand why you have to reset face
|
|
|
3907 cachels here. This can cause crash so let's disable it
|
|
|
3908 and see the difference. See redisplay-tests.el --yh */
|
|
428
|
3909 reset_face_cachels (XWINDOW (window));
|
|
448
|
3910 #endif
|
|
428
|
3911 new = o->parent;
|
|
|
3912 XWINDOW (new)->vchild = window;
|
|
|
3913 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3914 }
|
|
|
3915 }
|
|
|
3916 else
|
|
|
3917 {
|
|
444
|
3918 if (csize < window_min_width)
|
|
563
|
3919 signal_error (Qinvalid_operation, "Window width too small (after splitting)", make_int (csize));
|
|
444
|
3920 if (csize + window_min_width > window_char_width (o, 0))
|
|
563
|
3921 signal_error (Qinvalid_operation, "Window width too small (after splitting)",
|
|
|
3922 make_int (window_char_width (o, 0) - csize));
|
|
428
|
3923 if (NILP (o->parent)
|
|
|
3924 || NILP (XWINDOW (o->parent)->hchild))
|
|
|
3925 {
|
|
|
3926 make_dummy_parent (window);
|
|
448
|
3927 #if 0
|
|
|
3928 /* #### See above. */
|
|
428
|
3929 reset_face_cachels (XWINDOW (window));
|
|
448
|
3930 #endif
|
|
428
|
3931 new = o->parent;
|
|
|
3932 XWINDOW (new)->hchild = window;
|
|
|
3933 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3934 }
|
|
|
3935 }
|
|
|
3936
|
|
|
3937 /* Now we know that window's parent is a vertical combination
|
|
|
3938 if we are dividing vertically, or a horizontal combination
|
|
|
3939 if we are making side-by-side windows */
|
|
|
3940
|
|
|
3941 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
3942 new = allocate_window ();
|
|
|
3943 p = XWINDOW (new);
|
|
|
3944
|
|
|
3945 p->frame = o->frame;
|
|
|
3946 p->next = o->next;
|
|
|
3947 if (!NILP (p->next))
|
|
|
3948 XWINDOW (p->next)->prev = new;
|
|
|
3949 p->prev = window;
|
|
|
3950 o->next = new;
|
|
|
3951 p->parent = o->parent;
|
|
|
3952 p->buffer = Qt;
|
|
|
3953
|
|
|
3954 reset_face_cachels (p);
|
|
|
3955 reset_glyph_cachels (p);
|
|
|
3956
|
|
|
3957
|
|
|
3958 /* Apportion the available frame space among the two new windows */
|
|
|
3959
|
|
|
3960 if (!NILP (horflag))
|
|
|
3961 {
|
|
|
3962 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
3963 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
3964 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize;
|
|
|
3965 WINDOW_WIDTH (o) = psize;
|
|
|
3966 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize;
|
|
|
3967 }
|
|
|
3968 else
|
|
|
3969 {
|
|
|
3970 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
3971 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
3972 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize;
|
|
|
3973 WINDOW_HEIGHT (o) = psize;
|
|
|
3974 WINDOW_TOP (p) = WINDOW_TOP (o) + psize;
|
|
|
3975 }
|
|
|
3976
|
|
|
3977 XFRAME (p->frame)->mirror_dirty = 1;
|
|
853
|
3978
|
|
|
3979 note_object_created (new);
|
|
|
3980
|
|
428
|
3981 /* do this last (after the window is completely initialized and
|
|
|
3982 the mirror-dirty flag is set) so that specifier recomputation
|
|
|
3983 caused as a result of this will work properly and not abort. */
|
|
440
|
3984 Fset_window_buffer (new, o->buffer, Qt);
|
|
428
|
3985 return new;
|
|
|
3986 }
|
|
|
3987
|
|
|
3988
|
|
|
3989 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /*
|
|
444
|
3990 Make the selected window COUNT lines taller.
|
|
|
3991 From program, optional second arg HORIZONTALP non-nil means grow
|
|
|
3992 sideways COUNT columns, and optional third arg WINDOW specifies the
|
|
|
3993 window to change instead of the selected window.
|
|
428
|
3994 */
|
|
444
|
3995 (count, horizontalp, window))
|
|
|
3996 {
|
|
|
3997 CHECK_INT (count);
|
|
|
3998 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 0);
|
|
428
|
3999 return Qnil;
|
|
|
4000 }
|
|
|
4001
|
|
|
4002 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /*
|
|
444
|
4003 Make the selected window COUNT pixels taller.
|
|
|
4004 From program, optional second arg HORIZONTALP non-nil means grow
|
|
|
4005 sideways COUNT pixels, and optional third arg WINDOW specifies the
|
|
|
4006 window to change instead of the selected window.
|
|
428
|
4007 */
|
|
444
|
4008 (count, horizontalp, window))
|
|
|
4009 {
|
|
|
4010 CHECK_INT (count);
|
|
|
4011 change_window_height (window, XINT (count), horizontalp, /* inpixels */ 1);
|
|
428
|
4012 return Qnil;
|
|
|
4013 }
|
|
|
4014
|
|
|
4015 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /*
|
|
444
|
4016 Make the selected window COUNT lines shorter.
|
|
|
4017 From program, optional second arg HORIZONTALP non-nil means shrink
|
|
|
4018 sideways COUNT columns, and optional third arg WINDOW specifies the
|
|
|
4019 window to change instead of the selected window.
|
|
428
|
4020 */
|
|
444
|
4021 (count, horizontalp, window))
|
|
|
4022 {
|
|
|
4023 CHECK_INT (count);
|
|
|
4024 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 0);
|
|
428
|
4025 return Qnil;
|
|
|
4026 }
|
|
|
4027
|
|
|
4028 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /*
|
|
444
|
4029 Make the selected window COUNT pixels smaller.
|
|
|
4030 From program, optional second arg HORIZONTALP non-nil means shrink
|
|
|
4031 sideways COUNT pixels, and optional third arg WINDOW specifies the
|
|
|
4032 window to change instead of the selected window.
|
|
428
|
4033 */
|
|
444
|
4034 (count, horizontalp, window))
|
|
|
4035 {
|
|
|
4036 CHECK_INT (count);
|
|
|
4037 change_window_height (window, -XINT (count), horizontalp, /* inpixels */ 1);
|
|
428
|
4038 return Qnil;
|
|
|
4039 }
|
|
|
4040
|
|
|
4041 static int
|
|
|
4042 window_pixel_height_to_char_height (struct window *w, int pixel_height,
|
|
|
4043 int include_gutters_p)
|
|
|
4044 {
|
|
|
4045 int avail_height;
|
|
|
4046 int defheight, defwidth;
|
|
|
4047 int char_height;
|
|
793
|
4048 Lisp_Object window = wrap_window (w);
|
|
|
4049
|
|
428
|
4050
|
|
|
4051 avail_height = (pixel_height -
|
|
|
4052 (include_gutters_p ? 0 :
|
|
442
|
4053 window_top_window_gutter_height (w) +
|
|
|
4054 window_bottom_window_gutter_height (w)));
|
|
428
|
4055
|
|
|
4056 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
4057
|
|
|
4058 char_height = avail_height / defheight;
|
|
|
4059
|
|
|
4060 /* It's the calling function's responsibility to check these values
|
|
|
4061 and make sure they're not out of range.
|
|
|
4062
|
|
|
4063 #### We need to go through the calling functions and actually
|
|
|
4064 do this. */
|
|
|
4065 return max (0, char_height);
|
|
|
4066 }
|
|
|
4067
|
|
|
4068 static int
|
|
|
4069 window_char_height_to_pixel_height (struct window *w, int char_height,
|
|
|
4070 int include_gutters_p)
|
|
|
4071 {
|
|
|
4072 int avail_height;
|
|
|
4073 int defheight, defwidth;
|
|
|
4074 int pixel_height;
|
|
|
4075
|
|
793
|
4076 Lisp_Object window = wrap_window (w);
|
|
|
4077
|
|
428
|
4078
|
|
|
4079 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
4080
|
|
|
4081 avail_height = char_height * defheight;
|
|
|
4082 pixel_height = (avail_height +
|
|
|
4083 (include_gutters_p ? 0 :
|
|
442
|
4084 window_top_window_gutter_height (w) +
|
|
|
4085 window_bottom_window_gutter_height (w)));
|
|
428
|
4086
|
|
|
4087 /* It's the calling function's responsibility to check these values
|
|
|
4088 and make sure they're not out of range.
|
|
|
4089
|
|
|
4090 #### We need to go through the calling functions and actually
|
|
|
4091 do this. */
|
|
|
4092 return max (0, pixel_height);
|
|
|
4093 }
|
|
|
4094
|
|
|
4095 /* Return number of default lines of text can fit in the window W.
|
|
|
4096 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus
|
|
|
4097 horizontal scrollbar) in the space that is used for the calculation.
|
|
442
|
4098 This doesn't include space used by the frame gutters.
|
|
428
|
4099 */
|
|
|
4100 int
|
|
|
4101 window_char_height (struct window *w, int include_gutters_p)
|
|
|
4102 {
|
|
442
|
4103 return window_pixel_height_to_char_height (w, window_pixel_height (w),
|
|
428
|
4104 include_gutters_p);
|
|
|
4105 }
|
|
|
4106
|
|
|
4107 /*
|
|
|
4108 * Return number of lines currently displayed in window w. If
|
|
|
4109 * end-of-buffer is displayed then the area below end-of-buffer is assume
|
|
|
4110 * to be blank lines of default height.
|
|
|
4111 * Does not include the modeline.
|
|
|
4112 */
|
|
|
4113 int
|
|
|
4114 window_displayed_height (struct window *w)
|
|
|
4115 {
|
|
|
4116 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4117 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
4118 int num_lines;
|
|
|
4119 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)
|
|
|
4120 ? -1
|
|
|
4121 : w->window_end_pos[CURRENT_DISP]);
|
|
|
4122
|
|
|
4123 if (!Dynarr_length (dla))
|
|
|
4124 return window_char_height (w, 0);
|
|
|
4125
|
|
|
4126 num_lines = Dynarr_length (dla);
|
|
|
4127
|
|
|
4128 /* #### Document and assert somewhere that w->window_end_pos == -1
|
|
|
4129 indicates that end-of-buffer is being displayed. */
|
|
|
4130 if (end_pos == -1)
|
|
|
4131 {
|
|
|
4132 struct display_line *dl = Dynarr_atp (dla, 0);
|
|
|
4133 int ypos1 = dl->ypos + dl->descent;
|
|
|
4134 int ypos2 = WINDOW_TEXT_BOTTOM (w);
|
|
|
4135 Lisp_Object window;
|
|
|
4136 int defheight, defwidth;
|
|
|
4137
|
|
793
|
4138 window = wrap_window (w);
|
|
428
|
4139
|
|
|
4140 if (dl->modeline)
|
|
|
4141 {
|
|
|
4142 num_lines--;
|
|
|
4143
|
|
|
4144 if (Dynarr_length (dla) == 1)
|
|
|
4145 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
4146 else
|
|
|
4147 {
|
|
|
4148 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
4149 /* If this line is clipped then we know that there is no
|
|
|
4150 blank room between eob and the modeline. If we are
|
|
|
4151 scrolling on clipped lines just know off the clipped
|
|
|
4152 line and return .*/
|
|
|
4153 if (scroll_on_clipped_lines && dl->clip)
|
|
|
4154 return num_lines - 1;
|
|
|
4155 ypos1 = dl->ypos + dl->descent - dl->clip;
|
|
|
4156 }
|
|
|
4157 }
|
|
|
4158
|
|
|
4159 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
4160 /* #### This probably needs to know about the clipping area once a
|
|
|
4161 final definition is decided on. */
|
|
|
4162 num_lines += ((ypos2 - ypos1) / defheight);
|
|
|
4163 }
|
|
|
4164 else
|
|
|
4165 {
|
|
|
4166 if (num_lines > 1 && Dynarr_atp (dla, 0)->modeline)
|
|
|
4167 num_lines--;
|
|
|
4168
|
|
|
4169 if (scroll_on_clipped_lines
|
|
|
4170 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip)
|
|
|
4171 num_lines--;
|
|
|
4172 }
|
|
|
4173
|
|
|
4174 return num_lines;
|
|
|
4175 }
|
|
|
4176
|
|
|
4177 static int
|
|
|
4178 window_pixel_width (Lisp_Object window)
|
|
|
4179 {
|
|
|
4180 return WINDOW_WIDTH (XWINDOW (window));
|
|
|
4181 }
|
|
|
4182
|
|
442
|
4183 /* Calculate the pixel of a window, optionally including margin space
|
|
|
4184 but no vertical gutters. */
|
|
428
|
4185 static int
|
|
|
4186 window_pixel_width_to_char_width (struct window *w, int pixel_width,
|
|
|
4187 int include_margins_p)
|
|
|
4188 {
|
|
|
4189 int avail_width;
|
|
|
4190 int char_width;
|
|
|
4191 int defheight, defwidth;
|
|
793
|
4192 Lisp_Object window = wrap_window (w);
|
|
|
4193
|
|
428
|
4194
|
|
|
4195 avail_width = (pixel_width -
|
|
|
4196 window_left_gutter_width (w, 0) -
|
|
|
4197 window_right_gutter_width (w, 0) -
|
|
|
4198 (include_margins_p ? 0 : window_left_margin_width (w)) -
|
|
|
4199 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
|
4200
|
|
|
4201 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
4202
|
|
|
4203 char_width = (avail_width / defwidth);
|
|
|
4204
|
|
|
4205 /* It's the calling function's responsibility to check these values
|
|
|
4206 and make sure they're not out of range.
|
|
|
4207
|
|
|
4208 #### We need to go through the calling functions and actually
|
|
|
4209 do this. */
|
|
|
4210 return max (0, char_width);
|
|
|
4211 }
|
|
|
4212
|
|
|
4213 static int
|
|
|
4214 window_char_width_to_pixel_width (struct window *w, int char_width,
|
|
|
4215 int include_margins_p)
|
|
|
4216 {
|
|
|
4217 int avail_width;
|
|
|
4218 int pixel_width;
|
|
|
4219 int defheight, defwidth;
|
|
793
|
4220 Lisp_Object window = wrap_window (w);
|
|
|
4221
|
|
428
|
4222
|
|
|
4223 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
4224
|
|
|
4225 avail_width = char_width * defwidth;
|
|
|
4226 pixel_width = (avail_width +
|
|
442
|
4227 window_left_window_gutter_width (w, 0) +
|
|
|
4228 window_right_window_gutter_width (w, 0) +
|
|
428
|
4229 (include_margins_p ? 0 : window_left_margin_width (w)) +
|
|
|
4230 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
|
4231
|
|
|
4232 /* It's the calling function's responsibility to check these values
|
|
|
4233 and make sure they're not out of range.
|
|
|
4234
|
|
|
4235 #### We need to go through the calling functions and actually
|
|
|
4236 do this. */
|
|
|
4237 return max (0, pixel_width);
|
|
|
4238 }
|
|
|
4239
|
|
|
4240 /* This returns the usable space which doesn't include space needed by
|
|
|
4241 scrollbars or divider lines. */
|
|
|
4242 int
|
|
|
4243 window_char_width (struct window *w, int include_margins_p)
|
|
|
4244 {
|
|
|
4245 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w),
|
|
|
4246 include_margins_p);
|
|
|
4247 }
|
|
|
4248
|
|
|
4249 #define MINSIZE(w) \
|
|
|
4250 (widthflag \
|
|
|
4251 ? window_min_width * defwidth \
|
|
|
4252 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)))
|
|
|
4253
|
|
|
4254 #define CURBEG(w) \
|
|
|
4255 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w))
|
|
|
4256
|
|
|
4257 #define CURSIZE(w) \
|
|
|
4258 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w))
|
|
|
4259
|
|
|
4260 #define CURCHARSIZE(w) \
|
|
|
4261 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1))
|
|
|
4262
|
|
|
4263 #define MINCHARSIZE(window) \
|
|
|
4264 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \
|
|
|
4265 ? 1 : window_min_height)
|
|
|
4266
|
|
442
|
4267 static int
|
|
|
4268 window_pixheight (Lisp_Object w)
|
|
|
4269 {
|
|
|
4270 return window_pixel_height (XWINDOW (w));
|
|
|
4271 }
|
|
|
4272
|
|
428
|
4273 /* Unlike set_window_pixheight, this function
|
|
|
4274 also changes the heights of the siblings so as to
|
|
|
4275 keep everything consistent. */
|
|
|
4276
|
|
|
4277 static void
|
|
444
|
4278 change_window_height (Lisp_Object window, int delta, Lisp_Object horizontalp,
|
|
428
|
4279 int inpixels)
|
|
|
4280 {
|
|
444
|
4281 struct window *win = decode_window (window);
|
|
|
4282 int widthflag = !NILP (horizontalp);
|
|
428
|
4283 Lisp_Object parent;
|
|
|
4284 struct window *w;
|
|
|
4285 struct frame *f;
|
|
|
4286 int *sizep;
|
|
|
4287 int (*sizefun) (Lisp_Object) = (widthflag
|
|
|
4288 ? window_pixel_width
|
|
442
|
4289 : window_pixheight);
|
|
428
|
4290 void (*setsizefun) (Lisp_Object, int, int) = (widthflag
|
|
|
4291 ? set_window_pixwidth
|
|
|
4292 : set_window_pixheight);
|
|
|
4293 int dim;
|
|
|
4294 int defheight, defwidth;
|
|
|
4295
|
|
|
4296 if (delta == 0)
|
|
|
4297 return;
|
|
|
4298
|
|
|
4299 check_min_window_sizes ();
|
|
|
4300
|
|
793
|
4301 window = wrap_window (win);
|
|
428
|
4302 f = XFRAME (win->frame);
|
|
|
4303 if (EQ (window, FRAME_ROOT_WINDOW (f)))
|
|
563
|
4304 invalid_operation ("Won't change only window", Qunbound);
|
|
428
|
4305
|
|
|
4306 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
4307 functions should be called. */
|
|
|
4308 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
4309
|
|
|
4310 while (1)
|
|
|
4311 {
|
|
|
4312 w = XWINDOW (window);
|
|
|
4313 parent = w->parent;
|
|
|
4314 if (NILP (parent))
|
|
|
4315 {
|
|
|
4316 if (widthflag)
|
|
563
|
4317 invalid_operation ("No other window to side of this one", Qunbound);
|
|
428
|
4318 break;
|
|
|
4319 }
|
|
|
4320 if (widthflag
|
|
|
4321 ? !NILP (XWINDOW (parent)->hchild)
|
|
|
4322 : !NILP (XWINDOW (parent)->vchild))
|
|
|
4323 break;
|
|
|
4324 window = parent;
|
|
|
4325 }
|
|
|
4326
|
|
|
4327 sizep = &CURSIZE (w);
|
|
|
4328 dim = CURCHARSIZE (w);
|
|
|
4329
|
|
|
4330 if ((inpixels && (*sizep + delta) < MINSIZE (window)) ||
|
|
|
4331 (!inpixels && (dim + delta) < MINCHARSIZE (window)))
|
|
|
4332 {
|
|
|
4333 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
4334 return;
|
|
|
4335 else if (!NILP (parent))
|
|
|
4336 {
|
|
|
4337 Fdelete_window (window, Qnil);
|
|
|
4338 return;
|
|
|
4339 }
|
|
|
4340 }
|
|
|
4341
|
|
|
4342 if (!inpixels)
|
|
|
4343 delta *= (widthflag ? defwidth : defheight);
|
|
|
4344
|
|
|
4345 {
|
|
|
4346 int maxdelta;
|
|
|
4347
|
|
|
4348 maxdelta = ((!NILP (parent))
|
|
|
4349 ? (*sizefun) (parent) - *sizep
|
|
|
4350 : ((!NILP (w->next))
|
|
|
4351 ? (*sizefun) (w->next) - MINSIZE (w->next)
|
|
|
4352 : ((!NILP (w->prev))
|
|
|
4353 ? (*sizefun) (w->prev) - MINSIZE (w->prev)
|
|
|
4354 /* This is a frame with only one window,
|
|
|
4355 a minibuffer-only or a minibufferless frame. */
|
|
|
4356 : (delta = 0))));
|
|
|
4357
|
|
|
4358 if (delta > maxdelta)
|
|
|
4359 /* This case traps trying to make the minibuffer
|
|
|
4360 the full frame, or make the only window aside from the
|
|
|
4361 minibuffer the full frame. */
|
|
|
4362 delta = maxdelta;
|
|
|
4363
|
|
|
4364 if (delta == 0)
|
|
|
4365 return;
|
|
|
4366
|
|
|
4367 #if 0 /* FSFmacs */
|
|
|
4368 /* #### Chuck: is this correct? */
|
|
|
4369 if (*sizep + delta < MINSIZE (window))
|
|
|
4370 {
|
|
|
4371 Fdelete_window (window);
|
|
|
4372 return;
|
|
|
4373 }
|
|
|
4374 #endif
|
|
|
4375 }
|
|
|
4376
|
|
|
4377 if (!NILP (w->next) &&
|
|
|
4378 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next))
|
|
|
4379 {
|
|
|
4380 CURBEG (XWINDOW (w->next)) += delta;
|
|
|
4381 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0);
|
|
|
4382 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
4383 }
|
|
|
4384 else if (!NILP (w->prev) &&
|
|
|
4385 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev))
|
|
|
4386 {
|
|
|
4387 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0);
|
|
|
4388 CURBEG (w) -= delta;
|
|
|
4389 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
4390 }
|
|
|
4391 else
|
|
|
4392 {
|
|
|
4393 int delta1;
|
|
|
4394 int opht = (*sizefun) (parent);
|
|
|
4395
|
|
|
4396 /* If trying to grow this window to or beyond size of the parent,
|
|
|
4397 make delta1 so big that, on shrinking back down,
|
|
|
4398 all the siblings end up with less than one line and are deleted. */
|
|
|
4399 if (opht <= *sizep + delta)
|
|
|
4400 delta1 = opht * opht * 2;
|
|
|
4401 /* Otherwise, make delta1 just right so that if we add delta1
|
|
|
4402 lines to this window and to the parent, and then shrink
|
|
|
4403 the parent back to its original size, the new proportional
|
|
|
4404 size of this window will increase by delta. */
|
|
|
4405 else
|
|
|
4406 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100);
|
|
|
4407
|
|
|
4408 /* Add delta1 lines or columns to this window, and to the parent,
|
|
|
4409 keeping things consistent while not affecting siblings. */
|
|
|
4410 CURSIZE (XWINDOW (parent)) = opht + delta1;
|
|
|
4411 (*setsizefun) (window, *sizep + delta1, 0);
|
|
|
4412
|
|
|
4413 /* Squeeze out delta1 lines or columns from our parent,
|
|
|
4414 shrinking this window and siblings proportionately.
|
|
|
4415 This brings parent back to correct size.
|
|
|
4416 Delta1 was calculated so this makes this window the desired size,
|
|
|
4417 taking it all out of the siblings. */
|
|
|
4418 (*setsizefun) (parent, opht, 0);
|
|
|
4419 }
|
|
|
4420
|
|
|
4421 SET_LAST_MODIFIED (w, 0);
|
|
|
4422 SET_LAST_FACECHANGE (w);
|
|
|
4423 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
4424 /* overkill maybe, but better to be correct */
|
|
|
4425 MARK_FRAME_GUTTERS_CHANGED (f);
|
|
|
4426 }
|
|
|
4427 #undef MINSIZE
|
|
|
4428 #undef CURBEG
|
|
|
4429 #undef CURSIZE
|
|
|
4430 #undef CURCHARSIZE
|
|
|
4431 #undef MINCHARSIZE
|
|
|
4432
|
|
|
4433
|
|
|
4434
|
|
444
|
4435 /* Scroll contents of window WINDOW up COUNT lines.
|
|
|
4436 If COUNT < (top line height / average line height) then we just adjust
|
|
|
4437 the top clip. */
|
|
428
|
4438 void
|
|
444
|
4439 window_scroll (Lisp_Object window, Lisp_Object count, int direction,
|
|
578
|
4440 Error_Behavior errb)
|
|
428
|
4441 {
|
|
|
4442 struct window *w = XWINDOW (window);
|
|
|
4443 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4444 int selected = EQ (window, Fselected_window (Qnil));
|
|
|
4445 int value = 0;
|
|
|
4446 Lisp_Object point, tem;
|
|
|
4447 display_line_dynarr *dla;
|
|
|
4448 int fheight, fwidth, modeline = 0;
|
|
|
4449 struct display_line* dl;
|
|
|
4450
|
|
|
4451 if (selected)
|
|
|
4452 point = make_int (BUF_PT (b));
|
|
|
4453 else
|
|
|
4454 {
|
|
665
|
4455 Charbpos pos = marker_position (w->pointm[CURRENT_DISP]);
|
|
428
|
4456
|
|
|
4457 if (pos < BUF_BEGV (b))
|
|
|
4458 pos = BUF_BEGV (b);
|
|
|
4459 else if (pos > BUF_ZV (b))
|
|
|
4460 pos = BUF_ZV (b);
|
|
|
4461
|
|
|
4462 point = make_int (pos);
|
|
|
4463 }
|
|
|
4464
|
|
|
4465 /* Always set force_start so that redisplay_window will run
|
|
|
4466 the window-scroll-functions. */
|
|
|
4467 w->force_start = 1;
|
|
|
4468
|
|
|
4469 /* #### When the fuck does this happen? I'm so glad that history has
|
|
|
4470 completely documented the behavior of the scrolling functions under
|
|
|
4471 all circumstances. */
|
|
1708
|
4472 tem = Fpos_visible_in_window_p (point, window, Qnil);
|
|
428
|
4473 if (NILP (tem))
|
|
|
4474 {
|
|
|
4475 Fvertical_motion (make_int (-window_char_height (w, 0) / 2),
|
|
|
4476 window, Qnil);
|
|
|
4477 Fset_marker (w->start[CURRENT_DISP], point, w->buffer);
|
|
|
4478 w->start_at_line_beg = beginning_of_line_p (b, XINT (point));
|
|
|
4479 WINDOW_TEXT_TOP_CLIP (w) = 0;
|
|
|
4480 MARK_WINDOWS_CHANGED (w);
|
|
|
4481 }
|
|
|
4482
|
|
444
|
4483 if (!NILP (count))
|
|
428
|
4484 {
|
|
444
|
4485 if (EQ (count, Qminus))
|
|
428
|
4486 direction *= -1;
|
|
|
4487 else
|
|
|
4488 {
|
|
444
|
4489 count = Fprefix_numeric_value (count);
|
|
|
4490 value = XINT (count) * direction;
|
|
428
|
4491
|
|
|
4492 if (!value)
|
|
|
4493 return; /* someone just made a pointless call */
|
|
|
4494 }
|
|
|
4495 }
|
|
|
4496
|
|
|
4497 /* If the user didn't specify how far to scroll then we have to figure it
|
|
|
4498 out by ourselves. */
|
|
444
|
4499 if (NILP (count) || EQ (count, Qminus))
|
|
428
|
4500 {
|
|
|
4501 /* Going forwards is easy. If that is what we are doing then just
|
|
|
4502 set value and the section which handles the user specifying a
|
|
|
4503 positive value will work. */
|
|
|
4504 if (direction == 1)
|
|
|
4505 {
|
|
|
4506 value = window_displayed_height (w) - next_screen_context_lines;
|
|
|
4507 value = (value < 1 ? 1 : value);
|
|
|
4508 }
|
|
|
4509
|
|
|
4510 /* Going backwards is hard. We can't use the same loop used if the
|
|
|
4511 user specified a negative value because we care about
|
|
|
4512 next_screen_context_lines. In a variable height world you don't
|
|
|
4513 know how many lines above you can actually be displayed and still
|
|
|
4514 have the context lines appear. So we leave value set to 0 and add
|
|
|
4515 a separate section to deal with this. */
|
|
|
4516
|
|
|
4517 }
|
|
|
4518
|
|
|
4519 if (direction == 1 && !value)
|
|
|
4520 {
|
|
|
4521 return;
|
|
|
4522 }
|
|
|
4523
|
|
|
4524 /* Determine parameters to test for partial line scrolling with. */
|
|
|
4525 dla = window_display_lines (w, CURRENT_DISP);
|
|
|
4526
|
|
|
4527 if (INTP (Vwindow_pixel_scroll_increment))
|
|
|
4528 fheight = XINT (Vwindow_pixel_scroll_increment);
|
|
440
|
4529 else if (!NILP (Vwindow_pixel_scroll_increment))
|
|
428
|
4530 default_face_height_and_width (window, &fheight, &fwidth);
|
|
438
|
4531
|
|
428
|
4532 if (Dynarr_length (dla) >= 1)
|
|
|
4533 modeline = Dynarr_atp (dla, 0)->modeline;
|
|
|
4534
|
|
|
4535 dl = Dynarr_atp (dla, modeline);
|
|
438
|
4536
|
|
428
|
4537 if (value > 0)
|
|
|
4538 {
|
|
|
4539 /* Go for partial display line scrolling. This just means bumping
|
|
|
4540 the clip by a reasonable amount and redisplaying, everything else
|
|
|
4541 remains unchanged. */
|
|
|
4542 if (!NILP (Vwindow_pixel_scroll_increment)
|
|
|
4543 &&
|
|
|
4544 Dynarr_length (dla) >= (1 + modeline)
|
|
|
4545 &&
|
|
458
|
4546 (dl->ascent - dl->top_clip) > fheight * value)
|
|
428
|
4547 {
|
|
|
4548 WINDOW_TEXT_TOP_CLIP (w) += value * fheight;
|
|
|
4549 MARK_WINDOWS_CHANGED (w);
|
|
|
4550 }
|
|
|
4551 else
|
|
|
4552 {
|
|
|
4553 int vtarget;
|
|
665
|
4554 Charbpos startp, old_start;
|
|
438
|
4555
|
|
428
|
4556 if (WINDOW_TEXT_TOP_CLIP (w))
|
|
|
4557 {
|
|
|
4558 WINDOW_TEXT_TOP_CLIP (w) = 0;
|
|
|
4559 MARK_WINDOWS_CHANGED (w);
|
|
|
4560 }
|
|
|
4561
|
|
|
4562 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4563 startp = vmotion (w, old_start, value, &vtarget);
|
|
438
|
4564
|
|
428
|
4565 if (vtarget < value &&
|
|
|
4566 (w->window_end_pos[CURRENT_DISP] == -1
|
|
|
4567 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b))))
|
|
|
4568 {
|
|
563
|
4569 maybe_signal_error_1 (Qend_of_buffer, Qnil, Qwindow, errb);
|
|
428
|
4570 return;
|
|
|
4571 }
|
|
|
4572 else
|
|
|
4573 {
|
|
|
4574 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4575 w->buffer);
|
|
|
4576 w->force_start = 1;
|
|
|
4577 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4578 MARK_WINDOWS_CHANGED (w);
|
|
438
|
4579
|
|
1708
|
4580 if (!point_would_be_visible (w, startp, XINT (point), 0))
|
|
844
|
4581 Fset_window_point (wrap_window (w), make_int (startp));
|
|
428
|
4582 }
|
|
|
4583 }
|
|
|
4584 }
|
|
|
4585 else if (value < 0)
|
|
|
4586 {
|
|
|
4587 /* Go for partial display line scrolling. This just means bumping
|
|
|
4588 the clip by a reasonable amount and redisplaying, everything else
|
|
|
4589 remains unchanged. */
|
|
|
4590 if (!NILP (Vwindow_pixel_scroll_increment)
|
|
|
4591 &&
|
|
|
4592 Dynarr_length (dla) >= (1 + modeline)
|
|
|
4593 &&
|
|
|
4594 (dl->ascent - dl->top_clip) - fheight * value <
|
|
|
4595 (dl->ascent + dl->descent - dl->clip)
|
|
|
4596 &&
|
|
|
4597 WINDOW_TEXT_TOP_CLIP (w) + value * fheight > 0)
|
|
|
4598 {
|
|
|
4599 WINDOW_TEXT_TOP_CLIP (w) += value * fheight;
|
|
|
4600 MARK_WINDOWS_CHANGED (w);
|
|
|
4601 }
|
|
|
4602 else
|
|
|
4603 {
|
|
|
4604 int vtarget;
|
|
665
|
4605 Charbpos startp, old_start;
|
|
438
|
4606
|
|
428
|
4607 if (WINDOW_TEXT_TOP_CLIP (w))
|
|
|
4608 {
|
|
|
4609 WINDOW_TEXT_TOP_CLIP (w) = 0;
|
|
|
4610 MARK_WINDOWS_CHANGED (w);
|
|
|
4611 }
|
|
438
|
4612
|
|
428
|
4613 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4614 startp = vmotion (w, old_start, value, &vtarget);
|
|
438
|
4615
|
|
428
|
4616 if (vtarget > value
|
|
|
4617 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4618 {
|
|
563
|
4619 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
428
|
4620 return;
|
|
|
4621 }
|
|
|
4622 else
|
|
|
4623 {
|
|
|
4624 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4625 w->buffer);
|
|
|
4626 w->force_start = 1;
|
|
|
4627 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4628 MARK_WINDOWS_CHANGED (w);
|
|
438
|
4629
|
|
440
|
4630 /* #### Scroll back by less than a line. This code was
|
|
|
4631 originally for scrolling over large pixmaps and it
|
|
|
4632 loses when a line being *exposed* at the top of the
|
|
|
4633 window is bigger than the current one. However, for
|
|
|
4634 pixel based scrolling in general we can guess that
|
|
|
4635 the line we are going to display is probably the same
|
|
|
4636 size as the one we are on. In that instance we can
|
|
|
4637 have a reasonable stab at a suitable top clip. Fixing
|
|
|
4638 this properly is hard (and probably slow) as we would
|
|
|
4639 have to call redisplay to figure out the exposed line
|
|
|
4640 size. */
|
|
|
4641 if (!NILP (Vwindow_pixel_scroll_increment)
|
|
|
4642 && Dynarr_length (dla) >= (1 + modeline)
|
|
|
4643 && dl->ascent + fheight * value > 0)
|
|
|
4644 {
|
|
|
4645 WINDOW_TEXT_TOP_CLIP (w) = (dl->ascent + fheight * value);
|
|
|
4646 }
|
|
|
4647
|
|
1708
|
4648 if (!point_would_be_visible (w, startp, XINT (point), 0))
|
|
428
|
4649 {
|
|
665
|
4650 Charbpos new_point;
|
|
438
|
4651
|
|
428
|
4652 if (MINI_WINDOW_P (w))
|
|
|
4653 new_point = startp;
|
|
|
4654 else
|
|
|
4655 new_point = start_of_last_line (w, startp);
|
|
438
|
4656
|
|
844
|
4657 Fset_window_point (wrap_window (w), make_int (new_point));
|
|
428
|
4658 }
|
|
|
4659 }
|
|
|
4660 }
|
|
|
4661 }
|
|
|
4662 else /* value == 0 && direction == -1 */
|
|
|
4663 {
|
|
|
4664 if (WINDOW_TEXT_TOP_CLIP (w))
|
|
|
4665 {
|
|
|
4666 WINDOW_TEXT_TOP_CLIP (w) = 0;
|
|
|
4667 MARK_WINDOWS_CHANGED (w);
|
|
|
4668 }
|
|
|
4669 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4670 {
|
|
563
|
4671 maybe_signal_error_1 (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
428
|
4672 return;
|
|
|
4673 }
|
|
|
4674 else
|
|
|
4675 {
|
|
|
4676 int vtarget;
|
|
|
4677 int movement = next_screen_context_lines - 1;
|
|
665
|
4678 Charbpos old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
4679 Charbpos bottom = vmotion (w, old_startp, movement, &vtarget);
|
|
|
4680 Charbpos startp =
|
|
428
|
4681 start_with_point_on_display_line (w, bottom,
|
|
|
4682 -1 - (movement - vtarget));
|
|
|
4683
|
|
|
4684 if (startp >= old_startp)
|
|
|
4685 startp = vmotion (w, old_startp, -1, NULL);
|
|
|
4686
|
|
|
4687 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4688 w->buffer);
|
|
|
4689 w->force_start = 1;
|
|
|
4690 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4691 MARK_WINDOWS_CHANGED (w);
|
|
|
4692
|
|
1708
|
4693 if (!point_would_be_visible (w, startp, XINT (point), 0))
|
|
428
|
4694 {
|
|
665
|
4695 Charbpos new_point = start_of_last_line (w, startp);
|
|
428
|
4696
|
|
844
|
4697 Fset_window_point (wrap_window (w), make_int (new_point));
|
|
428
|
4698 }
|
|
|
4699 }
|
|
|
4700 }
|
|
|
4701 }
|
|
|
4702
|
|
|
4703 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /*
|
|
444
|
4704 Scroll text of current window up COUNT lines; or near full screen if no arg.
|
|
428
|
4705 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
444
|
4706 Negative COUNT means scroll downward.
|
|
428
|
4707 When calling from a program, supply an integer as argument or nil.
|
|
|
4708 On attempt to scroll past end of buffer, `end-of-buffer' is signaled.
|
|
|
4709 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is
|
|
|
4710 signaled.
|
|
462
|
4711
|
|
|
4712 The characters that are moved over may be added to the current selection
|
|
|
4713 \(i.e. active region) if the Shift key is held down, a motion key is used
|
|
|
4714 to invoke this command, and `shifted-motion-keys-select-region' is t; see
|
|
|
4715 the documentation for this variable for more details.
|
|
428
|
4716 */
|
|
444
|
4717 (count))
|
|
|
4718 {
|
|
|
4719 window_scroll (Fselected_window (Qnil), count, 1, ERROR_ME);
|
|
428
|
4720 return Qnil;
|
|
|
4721 }
|
|
|
4722
|
|
|
4723 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /*
|
|
444
|
4724 Scroll text of current window down COUNT lines; or near full screen if no arg.
|
|
428
|
4725 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
444
|
4726 Negative COUNT means scroll upward.
|
|
428
|
4727 When calling from a program, supply a number as argument or nil.
|
|
|
4728 On attempt to scroll past end of buffer, `end-of-buffer' is signaled.
|
|
|
4729 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is
|
|
|
4730 signaled.
|
|
462
|
4731
|
|
|
4732 The characters that are moved over may be added to the current selection
|
|
|
4733 \(i.e. active region) if the Shift key is held down, a motion key is used
|
|
|
4734 to invoke this command, and `shifted-motion-keys-select-region' is t; see
|
|
|
4735 the documentation for this variable for more details.
|
|
428
|
4736 */
|
|
444
|
4737 (count))
|
|
|
4738 {
|
|
|
4739 window_scroll (Fselected_window (Qnil), count, -1, ERROR_ME);
|
|
428
|
4740 return Qnil;
|
|
|
4741 }
|
|
|
4742
|
|
|
4743 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /*
|
|
|
4744 Return the other window for "other window scroll" commands.
|
|
|
4745 If in the minibuffer, `minibuffer-scroll-window' if non-nil
|
|
|
4746 specifies the window.
|
|
|
4747 If `other-window-scroll-buffer' is non-nil, a window
|
|
|
4748 showing that buffer is used.
|
|
|
4749 */
|
|
|
4750 ())
|
|
|
4751 {
|
|
|
4752 Lisp_Object window;
|
|
|
4753 Lisp_Object selected_window = Fselected_window (Qnil);
|
|
|
4754
|
|
|
4755 if (MINI_WINDOW_P (XWINDOW (selected_window))
|
|
|
4756 && !NILP (Vminibuffer_scroll_window))
|
|
|
4757 window = Vminibuffer_scroll_window;
|
|
|
4758 /* If buffer is specified, scroll that buffer. */
|
|
|
4759 else if (!NILP (Vother_window_scroll_buffer))
|
|
|
4760 {
|
|
|
4761 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil);
|
|
|
4762 if (NILP (window))
|
|
|
4763 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil);
|
|
|
4764 }
|
|
|
4765 else
|
|
|
4766 {
|
|
|
4767 /* Nothing specified; look for a neighboring window on the same
|
|
|
4768 frame. */
|
|
|
4769 window = Fnext_window (selected_window, Qnil, Qnil, Qnil);
|
|
|
4770
|
|
|
4771 if (EQ (window, selected_window))
|
|
|
4772 /* That didn't get us anywhere; look for a window on another
|
|
|
4773 visible frame. */
|
|
|
4774 do
|
|
|
4775 window = Fnext_window (window, Qnil, Qt, Qnil);
|
|
|
4776 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window))))
|
|
|
4777 && ! EQ (window, selected_window));
|
|
|
4778 }
|
|
|
4779
|
|
|
4780 CHECK_LIVE_WINDOW (window);
|
|
|
4781
|
|
|
4782 if (EQ (window, selected_window))
|
|
563
|
4783 invalid_operation ("There is no other window", Qunbound);
|
|
428
|
4784
|
|
|
4785 return window;
|
|
|
4786 }
|
|
|
4787
|
|
|
4788 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /*
|
|
444
|
4789 Scroll next window upward COUNT lines; or near full frame if no arg.
|
|
428
|
4790 The next window is the one below the current one; or the one at the top
|
|
444
|
4791 if the current one is at the bottom. Negative COUNT means scroll downward.
|
|
428
|
4792 When calling from a program, supply a number as argument or nil.
|
|
|
4793
|
|
|
4794 If in the minibuffer, `minibuffer-scroll-window' if non-nil
|
|
|
4795 specifies the window to scroll.
|
|
|
4796 If `other-window-scroll-buffer' is non-nil, scroll the window
|
|
|
4797 showing that buffer, popping the buffer up if necessary.
|
|
|
4798 */
|
|
444
|
4799 (count))
|
|
|
4800 {
|
|
|
4801 window_scroll (Fother_window_for_scrolling (), count, 1, ERROR_ME);
|
|
428
|
4802 return Qnil;
|
|
|
4803 }
|
|
|
4804
|
|
|
4805 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /*
|
|
444
|
4806 Scroll selected window display COUNT columns left.
|
|
|
4807 Default for COUNT is window width minus 2.
|
|
462
|
4808
|
|
|
4809 The characters that are moved over may be added to the current selection
|
|
|
4810 \(i.e. active region) if the Shift key is held down, a motion key is used
|
|
|
4811 to invoke this command, and `shifted-motion-keys-select-region' is t; see
|
|
|
4812 the documentation for this variable for more details.
|
|
428
|
4813 */
|
|
444
|
4814 (count))
|
|
428
|
4815 {
|
|
|
4816 Lisp_Object window = Fselected_window (Qnil);
|
|
|
4817 struct window *w = XWINDOW (window);
|
|
444
|
4818 int n = (NILP (count) ?
|
|
|
4819 window_char_width (w, 0) - 2 :
|
|
|
4820 XINT (Fprefix_numeric_value (count)));
|
|
|
4821
|
|
|
4822 return Fset_window_hscroll (window, make_int (w->hscroll + n));
|
|
428
|
4823 }
|
|
|
4824
|
|
|
4825 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /*
|
|
444
|
4826 Scroll selected window display COUNT columns right.
|
|
|
4827 Default for COUNT is window width minus 2.
|
|
462
|
4828
|
|
|
4829 The characters that are moved over may be added to the current selection
|
|
|
4830 \(i.e. active region) if the Shift key is held down, a motion key is used
|
|
|
4831 to invoke this command, and `shifted-motion-keys-select-region' is t; see
|
|
|
4832 the documentation for this variable for more details.
|
|
428
|
4833 */
|
|
444
|
4834 (count))
|
|
428
|
4835 {
|
|
|
4836 Lisp_Object window = Fselected_window (Qnil);
|
|
|
4837 struct window *w = XWINDOW (window);
|
|
444
|
4838 int n = (NILP (count) ?
|
|
|
4839 window_char_width (w, 0) - 2 :
|
|
|
4840 XINT (Fprefix_numeric_value (count)));
|
|
|
4841
|
|
|
4842 return Fset_window_hscroll (window, make_int (w->hscroll - n));
|
|
428
|
4843 }
|
|
|
4844
|
|
|
4845 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /*
|
|
|
4846 Center point in WINDOW. With N, put point on line N.
|
|
|
4847 The desired position of point is always relative to the window.
|
|
|
4848 If WINDOW is nil, the selected window is used.
|
|
|
4849 */
|
|
|
4850 (n, window))
|
|
|
4851 {
|
|
|
4852 struct window *w = decode_window (window);
|
|
|
4853 struct buffer *b = XBUFFER (w->buffer);
|
|
665
|
4854 Charbpos opoint = BUF_PT (b);
|
|
|
4855 Charbpos startp;
|
|
428
|
4856
|
|
|
4857 if (NILP (n))
|
|
|
4858 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w));
|
|
|
4859 else
|
|
|
4860 {
|
|
|
4861 n = Fprefix_numeric_value (n);
|
|
|
4862 CHECK_INT (n);
|
|
|
4863 startp = start_with_point_on_display_line (w, opoint, XINT (n));
|
|
|
4864 }
|
|
|
4865
|
|
|
4866 Fset_marker (w->start[CURRENT_DISP], make_int (startp), w->buffer);
|
|
|
4867
|
|
|
4868 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4869 w->force_start = 1;
|
|
|
4870 MARK_WINDOWS_CHANGED (w);
|
|
|
4871 return Qnil;
|
|
|
4872 }
|
|
|
4873
|
|
|
4874 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /*
|
|
|
4875 Position point relative to WINDOW.
|
|
|
4876 With no argument, position text at center of window.
|
|
|
4877 An argument specifies window line; zero means top of window,
|
|
|
4878 negative means relative to bottom of window.
|
|
|
4879 If WINDOW is nil, the selected window is used.
|
|
|
4880 */
|
|
|
4881 (arg, window))
|
|
|
4882 {
|
|
|
4883 struct window *w;
|
|
|
4884 struct buffer *b;
|
|
|
4885 int height;
|
|
665
|
4886 Charbpos start, new_point;
|
|
428
|
4887 int selected;
|
|
|
4888
|
|
|
4889 /* Don't use decode_window() because we need the new value of
|
|
|
4890 WINDOW. */
|
|
|
4891 if (NILP (window))
|
|
|
4892 window = Fselected_window (Qnil);
|
|
|
4893 else
|
|
|
4894 CHECK_LIVE_WINDOW (window);
|
|
|
4895 w = XWINDOW (window);
|
|
|
4896 b = XBUFFER (w->buffer);
|
|
|
4897
|
|
|
4898 height = window_displayed_height (w);
|
|
|
4899 selected = EQ (window, Fselected_window (w->frame));
|
|
|
4900
|
|
|
4901 if (NILP (arg))
|
|
|
4902 {
|
|
|
4903 int retval;
|
|
|
4904
|
|
|
4905 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
4906 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b))
|
|
|
4907 {
|
|
|
4908 new_point = point_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4909
|
|
844
|
4910 /* #### Here we are checking the selected window of the frame
|
|
|
4911 instead of the selected window period. Elsewhere we check
|
|
|
4912 the selected window of the device. What a mess! */
|
|
428
|
4913 if (selected)
|
|
|
4914 BUF_SET_PT (b, new_point);
|
|
|
4915 else
|
|
|
4916 Fset_window_point (window, make_int (new_point));
|
|
|
4917
|
|
|
4918 retval = line_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4919 }
|
|
|
4920 else
|
|
|
4921 {
|
|
|
4922 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4923 if (start < BUF_BEGV (b))
|
|
|
4924 start = BUF_BEGV (b);
|
|
|
4925 else if (start > BUF_ZV (b))
|
|
|
4926 start = BUF_ZV (b);
|
|
|
4927
|
|
|
4928 if (selected)
|
|
|
4929 new_point = BUF_PT (b);
|
|
|
4930 else
|
|
|
4931 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4932
|
|
|
4933 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4934
|
|
|
4935 if (selected)
|
|
|
4936 BUF_SET_PT (b, new_point);
|
|
|
4937 else
|
|
|
4938 Fset_window_point (window, make_int (new_point));
|
|
|
4939
|
|
|
4940 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4941 }
|
|
|
4942
|
|
|
4943 return make_int (retval);
|
|
|
4944 }
|
|
|
4945 else
|
|
|
4946 {
|
|
|
4947 /* #### Is this going to work right when at eob? */
|
|
|
4948 arg = Fprefix_numeric_value (arg);
|
|
|
4949 if (XINT (arg) < 0)
|
|
793
|
4950 arg = make_int (XINT (arg) + height);
|
|
428
|
4951 }
|
|
|
4952
|
|
|
4953 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4954 if (start < BUF_BEGV (b) || start > BUF_ZV (b))
|
|
|
4955 {
|
|
|
4956 if (selected)
|
|
|
4957 new_point = BUF_PT (b);
|
|
|
4958 else
|
|
|
4959 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4960
|
|
|
4961 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0);
|
|
|
4962
|
|
|
4963 if (selected)
|
|
|
4964 BUF_SET_PT (b, new_point);
|
|
|
4965 else
|
|
|
4966 Fset_window_point (window, make_int (new_point));
|
|
|
4967
|
|
|
4968 Fset_marker (w->start[CURRENT_DISP], make_int (new_point),
|
|
|
4969 w->buffer);
|
|
|
4970 w->start_at_line_beg = beginning_of_line_p (b, new_point);
|
|
|
4971 w->force_start = 1;
|
|
|
4972 }
|
|
|
4973 else
|
|
|
4974 {
|
|
|
4975 if (selected)
|
|
|
4976 BUF_SET_PT (b, start);
|
|
|
4977 else
|
|
|
4978 Fset_window_point (window, make_int (start));
|
|
|
4979 }
|
|
|
4980
|
|
|
4981 if (selected)
|
|
|
4982 return Fvertical_motion (arg, window, Qnil);
|
|
|
4983 else
|
|
|
4984 {
|
|
|
4985 int vpos;
|
|
|
4986 new_point = vmotion (XWINDOW (window),
|
|
|
4987 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
4988 XINT (arg), &vpos);
|
|
|
4989 Fset_window_point (window, make_int (new_point));
|
|
|
4990 return make_int (vpos);
|
|
|
4991 }
|
|
|
4992 }
|
|
|
4993
|
|
|
4994
|
|
|
4995 static int
|
|
|
4996 map_windows_1 (Lisp_Object window,
|
|
|
4997 int (*mapfun) (struct window *w, void *closure),
|
|
|
4998 void *closure)
|
|
|
4999 {
|
|
|
5000 for (; !NILP (window); window = XWINDOW (window)->next)
|
|
|
5001 {
|
|
|
5002 int retval;
|
|
|
5003 struct window *w = XWINDOW (window);
|
|
|
5004
|
|
|
5005 if (!NILP (w->vchild))
|
|
|
5006 retval = map_windows_1 (w->vchild, mapfun, closure);
|
|
|
5007 else if (!NILP (w->hchild))
|
|
|
5008 retval = map_windows_1 (w->hchild, mapfun, closure);
|
|
|
5009 else
|
|
|
5010 retval = (mapfun) (w, closure);
|
|
|
5011
|
|
|
5012 if (retval)
|
|
|
5013 return retval;
|
|
|
5014 }
|
|
|
5015
|
|
|
5016 return 0;
|
|
|
5017 }
|
|
|
5018
|
|
|
5019 /* Map MAPFUN over the windows in F. CLOSURE is passed to each
|
|
|
5020 invocation of MAPFUN. If any invocation of MAPFUN returns
|
|
|
5021 non-zero, the mapping is halted. Otherwise, map_windows() maps
|
|
|
5022 over all windows in F.
|
|
|
5023
|
|
800
|
5024 If F is null, map over all frames on all devices and consoles.
|
|
|
5025
|
|
428
|
5026 If MAPFUN creates or deletes windows, the behavior is undefined. */
|
|
|
5027
|
|
|
5028 int
|
|
|
5029 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure),
|
|
|
5030 void *closure)
|
|
|
5031 {
|
|
|
5032 if (f)
|
|
|
5033 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure);
|
|
|
5034 else
|
|
|
5035 {
|
|
|
5036 Lisp_Object frmcons, devcons, concons;
|
|
|
5037
|
|
|
5038 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons)
|
|
|
5039 {
|
|
|
5040 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))),
|
|
|
5041 mapfun, closure);
|
|
|
5042 if (v)
|
|
|
5043 return v;
|
|
|
5044 }
|
|
|
5045 }
|
|
|
5046
|
|
|
5047 return 0;
|
|
|
5048 }
|
|
|
5049
|
|
|
5050
|
|
|
5051 static void
|
|
2286
|
5052 modeline_shadow_thickness_changed (Lisp_Object UNUSED (specifier),
|
|
|
5053 struct window *w,
|
|
|
5054 Lisp_Object UNUSED (oldval))
|
|
428
|
5055 {
|
|
|
5056 w->shadow_thickness_changed = 1;
|
|
|
5057 MARK_WINDOWS_CHANGED (w);
|
|
|
5058 }
|
|
|
5059
|
|
|
5060 static void
|
|
2286
|
5061 vertical_divider_changed_in_window (Lisp_Object UNUSED (specifier),
|
|
428
|
5062 struct window *w,
|
|
2286
|
5063 Lisp_Object UNUSED (oldval))
|
|
428
|
5064 {
|
|
|
5065 MARK_WINDOWS_CHANGED (w);
|
|
|
5066 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w)));
|
|
|
5067 }
|
|
|
5068
|
|
|
5069 /* also used in scrollbar.c */
|
|
|
5070 void
|
|
2286
|
5071 some_window_value_changed (Lisp_Object UNUSED (specifier),
|
|
|
5072 struct window *w,
|
|
|
5073 Lisp_Object UNUSED (oldval))
|
|
428
|
5074 {
|
|
|
5075 MARK_WINDOWS_CHANGED (w);
|
|
|
5076 }
|
|
|
5077
|
|
|
5078 #ifdef MEMORY_USAGE_STATS
|
|
|
5079
|
|
|
5080 struct window_stats
|
|
|
5081 {
|
|
|
5082 int face;
|
|
|
5083 int glyph;
|
|
|
5084 #ifdef HAVE_SCROLLBARS
|
|
|
5085 int scrollbar;
|
|
|
5086 #endif
|
|
|
5087 int line_start;
|
|
|
5088 int other_redisplay;
|
|
|
5089 int other;
|
|
|
5090 };
|
|
|
5091
|
|
|
5092 static void
|
|
|
5093 compute_window_mirror_usage (struct window_mirror *mir,
|
|
|
5094 struct window_stats *stats,
|
|
|
5095 struct overhead_stats *ovstats)
|
|
|
5096 {
|
|
|
5097 if (!mir)
|
|
|
5098 return;
|
|
|
5099 stats->other += malloced_storage_size (mir, sizeof (struct window_mirror),
|
|
|
5100 ovstats);
|
|
|
5101 #ifdef HAVE_SCROLLBARS
|
|
|
5102 {
|
|
|
5103 struct device *d = XDEVICE (FRAME_DEVICE (mir->frame));
|
|
|
5104
|
|
|
5105 stats->scrollbar +=
|
|
|
5106 compute_scrollbar_instance_usage (d, mir->scrollbar_vertical_instance,
|
|
|
5107 ovstats);
|
|
|
5108 stats->scrollbar +=
|
|
|
5109 compute_scrollbar_instance_usage (d, mir->scrollbar_horizontal_instance,
|
|
|
5110 ovstats);
|
|
|
5111 }
|
|
|
5112 #endif /* HAVE_SCROLLBARS */
|
|
|
5113 stats->other_redisplay +=
|
|
|
5114 compute_display_line_dynarr_usage (mir->current_display_lines, ovstats);
|
|
|
5115 stats->other_redisplay +=
|
|
|
5116 compute_display_line_dynarr_usage (mir->desired_display_lines, ovstats);
|
|
|
5117 }
|
|
|
5118
|
|
|
5119 static void
|
|
|
5120 compute_window_usage (struct window *w, struct window_stats *stats,
|
|
|
5121 struct overhead_stats *ovstats)
|
|
|
5122 {
|
|
|
5123 xzero (*stats);
|
|
|
5124 stats->other += malloced_storage_size (w, sizeof (struct window), ovstats);
|
|
|
5125 stats->face += compute_face_cachel_usage (w->face_cachels, ovstats);
|
|
|
5126 stats->glyph += compute_glyph_cachel_usage (w->glyph_cachels, ovstats);
|
|
|
5127 stats->line_start +=
|
|
|
5128 compute_line_start_cache_dynarr_usage (w->line_start_cache, ovstats);
|
|
|
5129 compute_window_mirror_usage (find_window_mirror (w), stats, ovstats);
|
|
|
5130 }
|
|
|
5131
|
|
|
5132 DEFUN ("window-memory-usage", Fwindow_memory_usage, 1, 1, 0, /*
|
|
|
5133 Return stats about the memory usage of window WINDOW.
|
|
|
5134 The values returned are in the form of an alist of usage types and byte
|
|
|
5135 counts. The byte counts attempt to encompass all the memory used
|
|
|
5136 by the window (separate from the memory logically associated with a
|
|
|
5137 buffer or frame), including internal structures and any malloc()
|
|
|
5138 overhead associated with them. In practice, the byte counts are
|
|
|
5139 underestimated because certain memory usage is very hard to determine
|
|
|
5140 \(e.g. the amount of memory used inside the Xt library or inside the
|
|
|
5141 X server) and because there is other stuff that might logically
|
|
|
5142 be associated with a window, buffer, or frame (e.g. window configurations,
|
|
|
5143 glyphs) but should not obviously be included in the usage counts.
|
|
|
5144
|
|
|
5145 Multiple slices of the total memory usage may be returned, separated
|
|
|
5146 by a nil. Each slice represents a particular view of the memory, a
|
|
|
5147 particular way of partitioning it into groups. Within a slice, there
|
|
|
5148 is no overlap between the groups of memory, and each slice collectively
|
|
|
5149 represents all the memory concerned.
|
|
|
5150 */
|
|
|
5151 (window))
|
|
|
5152 {
|
|
|
5153 struct window_stats stats;
|
|
|
5154 struct overhead_stats ovstats;
|
|
|
5155 Lisp_Object val = Qnil;
|
|
|
5156
|
|
|
5157 CHECK_WINDOW (window); /* dead windows should be allowed, no? */
|
|
|
5158 xzero (ovstats);
|
|
|
5159 compute_window_usage (XWINDOW (window), &stats, &ovstats);
|
|
|
5160
|
|
|
5161 val = acons (Qface_cache, make_int (stats.face), val);
|
|
|
5162 val = acons (Qglyph_cache, make_int (stats.glyph), val);
|
|
|
5163 #ifdef HAVE_SCROLLBARS
|
|
|
5164 val = acons (Qscrollbar_instances, make_int (stats.scrollbar), val);
|
|
|
5165 #endif
|
|
|
5166 val = acons (Qline_start_cache, make_int (stats.line_start), val);
|
|
|
5167 val = acons (Qother_redisplay, make_int (stats.other_redisplay), val);
|
|
|
5168 val = acons (Qother, make_int (stats.other), val);
|
|
|
5169 val = Fcons (Qnil, val);
|
|
|
5170 val = acons (Qactually_requested, make_int (ovstats.was_requested), val);
|
|
|
5171 val = acons (Qmalloc_overhead, make_int (ovstats.malloc_overhead), val);
|
|
|
5172 val = acons (Qdynarr_overhead, make_int (ovstats.dynarr_overhead), val);
|
|
|
5173
|
|
|
5174 return Fnreverse (val);
|
|
|
5175 }
|
|
|
5176
|
|
|
5177 #endif /* MEMORY_USAGE_STATS */
|
|
|
5178
|
|
|
5179 /* Mark all subwindows of a window as deleted. The argument
|
|
|
5180 W is actually the subwindow tree of the window in question. */
|
|
|
5181
|
|
|
5182 void
|
|
|
5183 delete_all_subwindows (struct window *w)
|
|
|
5184 {
|
|
|
5185 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next));
|
|
|
5186 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
5187 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild));
|
|
|
5188
|
|
|
5189 mark_window_as_deleted (w);
|
|
|
5190 }
|
|
|
5191
|
|
|
5192 Lisp_Object
|
|
|
5193 save_window_excursion_unwind (Lisp_Object window_config)
|
|
|
5194 {
|
|
1149
|
5195 Lisp_Object val = call1 (Qset_window_configuration, window_config);
|
|
428
|
5196 return val;
|
|
|
5197 }
|
|
|
5198
|
|
|
5199 DEFUN ("save-window-excursion", Fsave_window_excursion, 0, UNEVALLED, 0, /*
|
|
|
5200 Execute body, preserving window sizes and contents.
|
|
|
5201 Restores which buffer appears in which window, where display starts,
|
|
|
5202 as well as the current buffer.
|
|
|
5203 Does not restore the value of point in current buffer.
|
|
|
5204 */
|
|
|
5205 (args))
|
|
|
5206 {
|
|
|
5207 /* This function can GC */
|
|
|
5208 int speccount = specpdl_depth ();
|
|
|
5209
|
|
|
5210 record_unwind_protect (save_window_excursion_unwind,
|
|
1149
|
5211 call1 (Qcurrent_window_configuration, Qnil));
|
|
771
|
5212 return unbind_to_1 (speccount, Fprogn (args));
|
|
428
|
5213 }
|
|
1149
|
5214
|
|
2289
|
5215 static int
|
|
|
5216 get_current_pixel_pos (Lisp_Object window, Lisp_Object pos,
|
|
|
5217 struct window **w,
|
|
|
5218 struct rune **rb, struct display_line **dl)
|
|
428
|
5219 {
|
|
2289
|
5220 display_line_dynarr *dla;
|
|
|
5221 struct display_block *db = NULL;
|
|
|
5222 int x, y;
|
|
|
5223
|
|
|
5224 *rb = NULL;
|
|
|
5225 *dl = NULL;
|
|
|
5226 *w = decode_window (window);
|
|
|
5227 dla = window_display_lines (*w, CURRENT_DISP);
|
|
|
5228 x = (*w)->last_point_x[CURRENT_DISP];
|
|
|
5229 y = (*w)->last_point_y[CURRENT_DISP];
|
|
|
5230 if (MINI_WINDOW_P (*w))
|
|
|
5231 return 0;
|
|
428
|
5232
|
|
|
5233 if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos))
|
|
|
5234 {
|
|
|
5235 int first_line, i;
|
|
665
|
5236 Charbpos point;
|
|
428
|
5237
|
|
|
5238 if (NILP (pos))
|
|
|
5239 pos = Fwindow_point (window);
|
|
438
|
5240
|
|
428
|
5241 CHECK_INT (pos);
|
|
|
5242 point = XINT (pos);
|
|
|
5243
|
|
|
5244 if (Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
5245 first_line = 1;
|
|
|
5246 else
|
|
|
5247 first_line = 0;
|
|
|
5248
|
|
|
5249 for (i = first_line; i < Dynarr_length (dla); i++)
|
|
|
5250 {
|
|
2289
|
5251 *dl = Dynarr_atp (dla, i);
|
|
428
|
5252 /* find the vertical location first */
|
|
2289
|
5253 if (point >= (*dl)->charpos && point <= (*dl)->end_charpos)
|
|
428
|
5254 {
|
|
2289
|
5255 db = get_display_block_from_line (*dl, TEXT);
|
|
428
|
5256 for (i = 0; i < Dynarr_length (db->runes); i++)
|
|
|
5257 {
|
|
2289
|
5258 *rb = Dynarr_atp (db->runes, i);
|
|
2290
|
5259 if (point <= (*rb)->charpos)
|
|
826
|
5260 goto found_charpos;
|
|
428
|
5261 }
|
|
2289
|
5262 return 0;
|
|
428
|
5263 }
|
|
|
5264 }
|
|
2289
|
5265 return 0;
|
|
826
|
5266 found_charpos:
|
|
428
|
5267 ;
|
|
|
5268 }
|
|
|
5269 else
|
|
|
5270 {
|
|
442
|
5271 /* optimized case */
|
|
2289
|
5272 *dl = Dynarr_atp (dla, y);
|
|
|
5273 db = get_display_block_from_line (*dl, TEXT);
|
|
428
|
5274
|
|
|
5275 if (x >= Dynarr_length (db->runes))
|
|
2289
|
5276 return 0;
|
|
|
5277
|
|
|
5278 *rb = Dynarr_atp (db->runes, x);
|
|
428
|
5279 }
|
|
|
5280
|
|
2289
|
5281 return 1;
|
|
|
5282 }
|
|
|
5283
|
|
|
5284 DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /*
|
|
|
5285 Return the horizontal pixel position of point POS in window.
|
|
|
5286 Beginning of line is column 0. If WINDOW is nil, the current window
|
|
|
5287 is assumed. If POS is nil, point is assumed. Note that POS must be
|
|
|
5288 visible for a non-nil result to be returned. This is calculated using
|
|
|
5289 the redisplay display tables; because of this, the returned value will
|
|
|
5290 only be correct if the redisplay tables are up-to-date. Use
|
|
|
5291 \"(sit-for 0)\" to insure that they are; however, if WINDOW is part of
|
|
|
5292 a new frame, use the following instead:
|
|
|
5293 (while (not (frame-visible-p frame)) (sleep-for .5))
|
|
|
5294 */
|
|
|
5295 (window, pos))
|
|
|
5296 {
|
|
|
5297 struct window* w;
|
|
|
5298 struct display_line *dl;
|
|
|
5299 struct rune* rb;
|
|
|
5300
|
|
|
5301 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl))
|
|
|
5302 return Qnil;
|
|
|
5303
|
|
428
|
5304 return make_int (rb->xpos - WINDOW_LEFT (w));
|
|
|
5305 }
|
|
|
5306
|
|
2289
|
5307 DEFUN ("current-pixel-row", Fcurrent_pixel_row, 0, 2, 0, /*
|
|
|
5308 Return the vertical pixel position of point POS in window. Top of
|
|
|
5309 window is row 0. If WINDOW is nil, the current window is assumed. If
|
|
|
5310 POS is nil, point is assumed. Note that POS must be visible for a
|
|
|
5311 non-nil result to be returned. This is calculated using the redisplay
|
|
|
5312 display tables; because of this, the returned value will only be
|
|
|
5313 correct if the redisplay tables are up-to-date. Use \"(sit-for 0)\"
|
|
|
5314 to insure that they are; however, if WINDOW is part of a new frame,
|
|
|
5315 use the following instead:
|
|
|
5316 (while (not (frame-visible-p frame)) (sleep-for .5))
|
|
|
5317 */
|
|
|
5318 (window, pos))
|
|
|
5319 {
|
|
|
5320 struct window* w;
|
|
|
5321 struct display_line *dl;
|
|
|
5322 struct rune* rb;
|
|
|
5323
|
|
|
5324 if (!get_current_pixel_pos(window, pos, &w, &rb, &dl))
|
|
|
5325 return Qnil;
|
|
|
5326
|
|
|
5327 return make_int (dl->ypos - dl->ascent - WINDOW_TOP (w));
|
|
|
5328 }
|
|
|
5329
|
|
428
|
5330
|
|
|
5331 #ifdef DEBUG_XEMACS
|
|
|
5332 /* This is short and simple in elisp, but... it was written to debug
|
|
|
5333 problems purely on the C side. That is where we need to call it so
|
|
|
5334 here it is. */
|
|
|
5335 static void
|
|
|
5336 debug_print_window (Lisp_Object window, int level)
|
|
|
5337 {
|
|
|
5338 int i;
|
|
|
5339 Lisp_Object child = Fwindow_first_vchild (window);
|
|
|
5340
|
|
|
5341 if (NILP (child))
|
|
|
5342 child = Fwindow_first_hchild (window);
|
|
|
5343
|
|
|
5344 for (i = level; i > 0; i--)
|
|
442
|
5345 stderr_out ("\t");
|
|
|
5346
|
|
|
5347 stderr_out ("#<window");
|
|
428
|
5348 {
|
|
|
5349 Lisp_Object buffer = XWINDOW (window)->buffer;
|
|
|
5350 if (!NILP (buffer) && BUFFERP (buffer))
|
|
442
|
5351 stderr_out (" on %s", XSTRING_DATA (XBUFFER (buffer)->name));
|
|
428
|
5352 }
|
|
442
|
5353 stderr_out (" 0x%x>", XWINDOW (window)->header.uid);
|
|
428
|
5354
|
|
|
5355 while (!NILP (child))
|
|
|
5356 {
|
|
|
5357 debug_print_window (child, level + 1);
|
|
|
5358 child = Fwindow_next_child (child);
|
|
|
5359 }
|
|
|
5360 }
|
|
|
5361
|
|
|
5362 void debug_print_windows (struct frame *f);
|
|
|
5363 void
|
|
|
5364 debug_print_windows (struct frame *f)
|
|
|
5365 {
|
|
|
5366 debug_print_window (f->root_window, 0);
|
|
|
5367 putc ('\n', stderr);
|
|
|
5368 }
|
|
|
5369 #endif /* DEBUG_XEMACS */
|
|
|
5370
|
|
|
5371
|
|
|
5372 /************************************************************************/
|
|
|
5373 /* initialization */
|
|
|
5374 /************************************************************************/
|
|
|
5375
|
|
|
5376 void
|
|
|
5377 syms_of_window (void)
|
|
|
5378 {
|
|
442
|
5379 INIT_LRECORD_IMPLEMENTATION (window);
|
|
617
|
5380 INIT_LRECORD_IMPLEMENTATION (window_mirror);
|
|
442
|
5381
|
|
563
|
5382 DEFSYMBOL (Qwindowp);
|
|
|
5383 DEFSYMBOL (Qwindow_live_p);
|
|
|
5384 DEFSYMBOL (Qdisplay_buffer);
|
|
428
|
5385
|
|
|
5386 #ifdef MEMORY_USAGE_STATS
|
|
563
|
5387 DEFSYMBOL (Qface_cache);
|
|
|
5388 DEFSYMBOL (Qglyph_cache);
|
|
|
5389 DEFSYMBOL (Qline_start_cache);
|
|
428
|
5390 #ifdef HAVE_SCROLLBARS
|
|
563
|
5391 DEFSYMBOL (Qscrollbar_instances);
|
|
428
|
5392 #endif
|
|
563
|
5393 DEFSYMBOL (Qother_redisplay);
|
|
428
|
5394 /* Qother in general.c */
|
|
|
5395 #endif
|
|
|
5396
|
|
707
|
5397 DEFSYMBOL (Qtruncate_partial_width_windows);
|
|
1149
|
5398 DEFSYMBOL (Qcurrent_window_configuration);
|
|
|
5399 DEFSYMBOL (Qset_window_configuration);
|
|
707
|
5400
|
|
428
|
5401 DEFSUBR (Fselected_window);
|
|
|
5402 DEFSUBR (Flast_nonminibuf_window);
|
|
|
5403 DEFSUBR (Fminibuffer_window);
|
|
|
5404 DEFSUBR (Fwindow_minibuffer_p);
|
|
|
5405 DEFSUBR (Fwindowp);
|
|
|
5406 DEFSUBR (Fwindow_live_p);
|
|
|
5407 DEFSUBR (Fwindow_first_hchild);
|
|
|
5408 DEFSUBR (Fwindow_first_vchild);
|
|
|
5409 DEFSUBR (Fwindow_next_child);
|
|
|
5410 DEFSUBR (Fwindow_previous_child);
|
|
|
5411 DEFSUBR (Fwindow_parent);
|
|
|
5412 DEFSUBR (Fwindow_lowest_p);
|
|
|
5413 DEFSUBR (Fwindow_truncated_p);
|
|
|
5414 DEFSUBR (Fwindow_highest_p);
|
|
|
5415 DEFSUBR (Fwindow_leftmost_p);
|
|
|
5416 DEFSUBR (Fwindow_rightmost_p);
|
|
|
5417 DEFSUBR (Fpos_visible_in_window_p);
|
|
|
5418 DEFSUBR (Fwindow_buffer);
|
|
|
5419 DEFSUBR (Fwindow_frame);
|
|
|
5420 DEFSUBR (Fwindow_height);
|
|
|
5421 DEFSUBR (Fwindow_displayed_height);
|
|
|
5422 DEFSUBR (Fwindow_width);
|
|
442
|
5423 DEFSUBR (Fwindow_full_width);
|
|
428
|
5424 DEFSUBR (Fwindow_pixel_height);
|
|
|
5425 DEFSUBR (Fwindow_pixel_width);
|
|
442
|
5426 DEFSUBR (Fwindow_text_area_height);
|
|
428
|
5427 DEFSUBR (Fwindow_text_area_pixel_height);
|
|
|
5428 DEFSUBR (Fwindow_displayed_text_pixel_height);
|
|
|
5429 DEFSUBR (Fwindow_text_area_pixel_width);
|
|
|
5430 DEFSUBR (Fwindow_hscroll);
|
|
438
|
5431 DEFSUBR (Fset_window_hscroll);
|
|
428
|
5432 DEFSUBR (Fmodeline_hscroll);
|
|
|
5433 DEFSUBR (Fset_modeline_hscroll);
|
|
|
5434 DEFSUBR (Fwindow_pixel_edges);
|
|
|
5435 DEFSUBR (Fwindow_text_area_pixel_edges);
|
|
|
5436 DEFSUBR (Fwindow_point);
|
|
|
5437 DEFSUBR (Fwindow_start);
|
|
|
5438 DEFSUBR (Fwindow_end);
|
|
442
|
5439 DEFSUBR (Fwindow_last_line_visible_height);
|
|
428
|
5440 DEFSUBR (Fset_window_point);
|
|
|
5441 DEFSUBR (Fset_window_start);
|
|
|
5442 DEFSUBR (Fwindow_dedicated_p);
|
|
|
5443 DEFSUBR (Fset_window_dedicated_p);
|
|
|
5444 DEFSUBR (Fnext_window);
|
|
|
5445 DEFSUBR (Fprevious_window);
|
|
|
5446 DEFSUBR (Fnext_vertical_window);
|
|
|
5447 DEFSUBR (Fother_window);
|
|
|
5448 DEFSUBR (Fget_lru_window);
|
|
|
5449 DEFSUBR (Fget_largest_window);
|
|
|
5450 DEFSUBR (Fget_buffer_window);
|
|
|
5451 DEFSUBR (Fwindow_left_margin_pixel_width);
|
|
|
5452 DEFSUBR (Fwindow_right_margin_pixel_width);
|
|
|
5453 DEFSUBR (Fdelete_other_windows);
|
|
|
5454 DEFSUBR (Fdelete_windows_on);
|
|
|
5455 DEFSUBR (Freplace_buffer_in_windows);
|
|
|
5456 DEFSUBR (Fdelete_window);
|
|
|
5457 DEFSUBR (Fset_window_buffer);
|
|
|
5458 DEFSUBR (Fselect_window);
|
|
|
5459 DEFSUBR (Fsplit_window);
|
|
|
5460 DEFSUBR (Fenlarge_window);
|
|
|
5461 DEFSUBR (Fenlarge_window_pixels);
|
|
|
5462 DEFSUBR (Fshrink_window);
|
|
|
5463 DEFSUBR (Fshrink_window_pixels);
|
|
|
5464 DEFSUBR (Fscroll_up);
|
|
|
5465 DEFSUBR (Fscroll_down);
|
|
|
5466 DEFSUBR (Fscroll_left);
|
|
|
5467 DEFSUBR (Fscroll_right);
|
|
|
5468 DEFSUBR (Fother_window_for_scrolling);
|
|
|
5469 DEFSUBR (Fscroll_other_window);
|
|
|
5470 DEFSUBR (Fcenter_to_window_line);
|
|
|
5471 DEFSUBR (Fmove_to_window_line);
|
|
|
5472 #ifdef MEMORY_USAGE_STATS
|
|
|
5473 DEFSUBR (Fwindow_memory_usage);
|
|
|
5474 #endif
|
|
|
5475 DEFSUBR (Fsave_window_excursion);
|
|
|
5476 DEFSUBR (Fcurrent_pixel_column);
|
|
2289
|
5477 DEFSUBR (Fcurrent_pixel_row);
|
|
428
|
5478 }
|
|
|
5479
|
|
|
5480 void
|
|
|
5481 reinit_vars_of_window (void)
|
|
|
5482 {
|
|
|
5483 /* Make sure all windows get marked */
|
|
|
5484 minibuf_window = Qnil;
|
|
|
5485 staticpro_nodump (&minibuf_window);
|
|
|
5486 }
|
|
|
5487
|
|
|
5488 void
|
|
|
5489 vars_of_window (void)
|
|
|
5490 {
|
|
|
5491 reinit_vars_of_window ();
|
|
|
5492
|
|
|
5493 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /*
|
|
|
5494 *Non-nil means to scroll if point lands on a line which is clipped.
|
|
|
5495 */ );
|
|
|
5496 scroll_on_clipped_lines = 1;
|
|
|
5497
|
|
|
5498 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /*
|
|
|
5499 Non-nil means call as function to display a help buffer.
|
|
|
5500 The function is called with one argument, the buffer to be displayed.
|
|
|
5501 Used by `with-output-to-temp-buffer'.
|
|
|
5502 If this function is used, then it must do the entire job of showing
|
|
|
5503 the buffer; `temp-buffer-show-hook' is not run unless this function runs it.
|
|
442
|
5504 \(`temp-buffer-show-hook' is obsolete. Do not use in new code.)
|
|
428
|
5505 */ );
|
|
|
5506 Vtemp_buffer_show_function = Qnil;
|
|
|
5507
|
|
|
5508 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /*
|
|
|
5509 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll.
|
|
|
5510 */ );
|
|
|
5511 Vminibuffer_scroll_window = Qnil;
|
|
|
5512
|
|
|
5513 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /*
|
|
|
5514 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window.
|
|
|
5515 */ );
|
|
|
5516 Vother_window_scroll_buffer = Qnil;
|
|
|
5517
|
|
|
5518 DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /*
|
|
|
5519 *Number of pixels to scroll by per requested line.
|
|
|
5520 If nil then normal line scrolling occurs regardless of line height.
|
|
|
5521 If t then scrolling is done in increments equal to the height of the default face.
|
|
|
5522 */ );
|
|
|
5523 Vwindow_pixel_scroll_increment = Qt;
|
|
|
5524
|
|
|
5525 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /*
|
|
|
5526 *Number of lines of continuity when scrolling by screenfuls.
|
|
|
5527 */ );
|
|
|
5528 next_screen_context_lines = 2;
|
|
|
5529
|
|
|
5530 DEFVAR_INT ("window-min-height", &window_min_height /*
|
|
|
5531 *Delete any window less than this tall (including its modeline).
|
|
|
5532 */ );
|
|
|
5533 window_min_height = 4;
|
|
|
5534
|
|
|
5535 DEFVAR_INT ("window-min-width", &window_min_width /*
|
|
|
5536 *Delete any window less than this wide.
|
|
|
5537 */ );
|
|
|
5538 window_min_width = 10;
|
|
|
5539 }
|
|
|
5540
|
|
|
5541 void
|
|
|
5542 specifier_vars_of_window (void)
|
|
|
5543 {
|
|
|
5544 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /*
|
|
|
5545 *How thick to draw 3D shadows around modelines.
|
|
|
5546 If this is set to 0, modelines will be the traditional 2D. Sizes above
|
|
|
5547 10 will be accepted but the maximum thickness that will be drawn is 10.
|
|
|
5548 This is a specifier; use `set-specifier' to change it.
|
|
|
5549 */ );
|
|
|
5550 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger);
|
|
|
5551 /* The initial value for modeline-shadow-thickness is 2, but if the
|
|
|
5552 user removes all specifications we provide a fallback value of 0,
|
|
|
5553 which is probably what was expected. */
|
|
|
5554 set_specifier_fallback (Vmodeline_shadow_thickness,
|
|
|
5555 list1 (Fcons (Qnil, Qzero)));
|
|
|
5556 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_int (2),
|
|
|
5557 Qnil, Qnil, Qnil);
|
|
|
5558 set_specifier_caching (Vmodeline_shadow_thickness,
|
|
438
|
5559 offsetof (struct window, modeline_shadow_thickness),
|
|
428
|
5560 modeline_shadow_thickness_changed,
|
|
444
|
5561 0, 0, 0);
|
|
428
|
5562
|
|
|
5563 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /*
|
|
|
5564 *Whether the modeline should be displayed.
|
|
|
5565 This is a specifier; use `set-specifier' to change it.
|
|
|
5566 */ );
|
|
|
5567 Vhas_modeline_p = Fmake_specifier (Qboolean);
|
|
|
5568 set_specifier_fallback (Vhas_modeline_p,
|
|
|
5569 list1 (Fcons (Qnil, Qt)));
|
|
|
5570 set_specifier_caching (Vhas_modeline_p,
|
|
438
|
5571 offsetof (struct window, has_modeline_p),
|
|
428
|
5572 /* #### It's strange that we need a special
|
|
|
5573 flag to indicate that the shadow-thickness
|
|
|
5574 has changed, but not one to indicate that
|
|
|
5575 the modeline has been turned off or on. */
|
|
|
5576 some_window_value_changed,
|
|
444
|
5577 0, 0, 0);
|
|
428
|
5578
|
|
|
5579 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p",
|
|
|
5580 &Vvertical_divider_always_visible_p /*
|
|
|
5581 *Should XEmacs always display vertical dividers between windows.
|
|
|
5582
|
|
|
5583 When this is non-nil, vertical dividers are always shown, and are
|
|
|
5584 draggable. When it is nil, vertical dividers are shown only when
|
|
|
5585 there are no scrollbars in between windows, and are not draggable.
|
|
|
5586
|
|
|
5587 This is a specifier; use `set-specifier' to change it.
|
|
|
5588 */ );
|
|
|
5589 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean);
|
|
|
5590 set_specifier_fallback (Vvertical_divider_always_visible_p,
|
|
|
5591 list1 (Fcons (Qnil, Qt)));
|
|
|
5592 set_specifier_caching (Vvertical_divider_always_visible_p,
|
|
438
|
5593 offsetof (struct window,
|
|
|
5594 vertical_divider_always_visible_p),
|
|
428
|
5595 vertical_divider_changed_in_window,
|
|
444
|
5596 0, 0, 0);
|
|
428
|
5597
|
|
|
5598 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /*
|
|
|
5599 *How thick to draw 3D shadows around vertical dividers.
|
|
|
5600 This is a specifier; use `set-specifier' to change it.
|
|
|
5601 */ );
|
|
|
5602 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger);
|
|
|
5603 set_specifier_fallback (Vvertical_divider_shadow_thickness,
|
|
|
5604 list1 (Fcons (Qnil, Qzero)));
|
|
|
5605 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_int (2),
|
|
|
5606 Qnil, Qnil, Qnil);
|
|
|
5607 set_specifier_caching (Vvertical_divider_shadow_thickness,
|
|
438
|
5608 offsetof (struct window,
|
|
|
5609 vertical_divider_shadow_thickness),
|
|
428
|
5610 vertical_divider_changed_in_window,
|
|
444
|
5611 0, 0, 0);
|
|
428
|
5612 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /*
|
|
|
5613 *The width of the vertical dividers, not including shadows.
|
|
|
5614
|
|
|
5615 For TTY windows, divider line is always one character wide. When
|
|
|
5616 instance of this specifier is zero in a TTY window, no divider is
|
|
|
5617 drawn at all between windows. When non-zero, a one character wide
|
|
|
5618 divider is displayed.
|
|
|
5619
|
|
|
5620 This is a specifier; use `set-specifier' to change it.
|
|
|
5621 */ );
|
|
|
5622
|
|
|
5623 Vvertical_divider_line_width = Fmake_specifier (Qnatnum);
|
|
|
5624 {
|
|
|
5625 Lisp_Object fb = Qnil;
|
|
|
5626 #ifdef HAVE_TTY
|
|
|
5627 fb = Fcons (Fcons (list1 (Qtty), make_int (1)), fb);
|
|
|
5628 #endif
|
|
462
|
5629 #ifdef HAVE_GTK
|
|
|
5630 fb = Fcons (Fcons (list1 (Qgtk), make_int (3)), fb);
|
|
|
5631 #endif
|
|
428
|
5632 #ifdef HAVE_X_WINDOWS
|
|
|
5633 fb = Fcons (Fcons (list1 (Qx), make_int (3)), fb);
|
|
|
5634 #endif
|
|
|
5635 #ifdef HAVE_MS_WINDOWS
|
|
|
5636 /* #### This should be made magic and made to obey system settings */
|
|
|
5637 fb = Fcons (Fcons (list1 (Qmswindows), make_int (3)), fb);
|
|
|
5638 #endif
|
|
|
5639 set_specifier_fallback (Vvertical_divider_line_width, fb);
|
|
|
5640 }
|
|
|
5641 set_specifier_caching (Vvertical_divider_line_width,
|
|
438
|
5642 offsetof (struct window,
|
|
|
5643 vertical_divider_line_width),
|
|
428
|
5644 vertical_divider_changed_in_window,
|
|
444
|
5645 0, 0, 0);
|
|
428
|
5646
|
|
|
5647 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /*
|
|
|
5648 *How much space to leave around the vertical dividers.
|
|
|
5649
|
|
|
5650 In TTY windows, spacing is always zero, and the value of this
|
|
|
5651 specifier is ignored.
|
|
|
5652
|
|
|
5653 This is a specifier; use `set-specifier' to change it.
|
|
|
5654 */ );
|
|
|
5655 Vvertical_divider_spacing = Fmake_specifier (Qnatnum);
|
|
|
5656 {
|
|
|
5657 Lisp_Object fb = Qnil;
|
|
|
5658 #ifdef HAVE_TTY
|
|
|
5659 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb);
|
|
|
5660 #endif
|
|
|
5661 #ifdef HAVE_X_WINDOWS
|
|
|
5662 /* #### 3D dividers look great on MS Windows with spacing = 0.
|
|
|
5663 Should not the same value be the fallback under X? - kkm */
|
|
|
5664 fb = Fcons (Fcons (list1 (Qx), make_int (2)), fb);
|
|
|
5665 #endif
|
|
462
|
5666 #ifdef HAVE_GTK
|
|
|
5667 fb = Fcons (Fcons (list1 (Qgtk), Qzero), fb);
|
|
|
5668 #endif
|
|
428
|
5669 #ifdef HAVE_MS_WINDOWS
|
|
|
5670 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb);
|
|
|
5671 #endif
|
|
|
5672 set_specifier_fallback (Vvertical_divider_spacing, fb);
|
|
|
5673 }
|
|
|
5674 set_specifier_caching (Vvertical_divider_spacing,
|
|
438
|
5675 offsetof (struct window, vertical_divider_spacing),
|
|
428
|
5676 vertical_divider_changed_in_window,
|
|
444
|
5677 0, 0, 0);
|
|
|
5678 }
|
