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0
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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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4 Copyright (C) 1995, 1996 Ben Wing.
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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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27 /* This file has been Mule-ized. */
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28
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29 #include <config.h>
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30 #include "lisp.h"
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31
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32 #include "buffer.h"
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33 #include "faces.h"
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34 #include "frame.h"
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35 #include "objects.h"
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36 #include "glyphs.h"
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37 #include "redisplay.h"
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38 #include "window.h"
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384
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39 #include "elhash.h"
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40 #include "commands.h"
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0
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41
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272
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42 Lisp_Object Qwindowp, Qwindow_live_p, Qwindow_configurationp;
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43 Lisp_Object Qscroll_up, Qscroll_down, Qdisplay_buffer;
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0
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44
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45 #ifdef MEMORY_USAGE_STATS
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272
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46 Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qother_redisplay;
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0
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47 #ifdef HAVE_SCROLLBARS
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48 Lisp_Object Qscrollbar_instances;
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49 #endif
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50 #endif
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51
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272
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52 EXFUN (Fnext_window, 4);
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53
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0
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54 static int window_pixel_width_to_char_width (struct window *w,
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55 int pixel_width,
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56 int include_margins_p);
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57 static int window_char_width_to_pixel_width (struct window *w,
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58 int char_width,
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59 int include_margins_p);
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60 static int window_pixel_height_to_char_height (struct window *w,
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61 int pixel_height,
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62 int include_gutters_p);
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63 static int window_char_height_to_pixel_height (struct window *w,
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64 int char_height,
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65 int include_gutters_p);
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263
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66 static void change_window_height (struct window *w, int delta, int widthflag,
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67 int inpixels);
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0
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68
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69 /* Thickness of shadow border around 3d modelines. */
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70 Lisp_Object Vmodeline_shadow_thickness;
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71
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284
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72 /* Whether vertical dividers are draggable and displayed */
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298
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73 Lisp_Object Vvertical_divider_always_visible_p;
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284
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74
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0
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75 /* Whether a modeline should be displayed. */
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76 Lisp_Object Vhas_modeline_p;
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77
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284
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78 /* Thickness of shadow border around vertical dividers. */
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79 Lisp_Object Vvertical_divider_shadow_thickness;
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80
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81 /* Divider surface width (not counting 3-d borders) */
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82 Lisp_Object Vvertical_divider_line_width;
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83
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371
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84 /* Spacing between outer egde of divider border and window edge */
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284
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85 Lisp_Object Vvertical_divider_spacing;
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86
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0
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87 /* Scroll if point lands on the bottom line and that line is partially
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88 clipped. */
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89 int scroll_on_clipped_lines;
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90
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91 /* The minibuffer window of the selected frame.
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92 Note that you cannot test for minibufferness of an arbitrary window
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93 by comparing against this; but you can test for minibufferness of
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94 the selected window. */
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95 Lisp_Object minibuf_window;
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96
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97 /* Non-nil means it is the window for C-M-v to scroll
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98 when the minibuffer is selected. */
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274
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99 Lisp_Object Vminibuffer_scroll_window;
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0
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100
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101 /* Non-nil means this is the buffer whose window C-M-v should scroll. */
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102 Lisp_Object Vother_window_scroll_buffer;
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103
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102
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104 /* Non-nil means it's the function to call to display temp buffers. */
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0
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105 Lisp_Object Vtemp_buffer_show_function;
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106
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107 Lisp_Object Vtemp_buffer_show_hook;
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108
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109 /* If a window gets smaller than either of these, it is removed. */
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110 int window_min_height;
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111 int window_min_width;
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112
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113 /* Hook run at end of temp_output_buffer_show. */
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114 Lisp_Object Qtemp_buffer_show_hook;
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115
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116 /* Number of lines of continuity in scrolling by screenfuls. */
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117 int next_screen_context_lines;
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118
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119 /* List of freed window configurations with 1 - 10 windows. */
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120 Lisp_Object Vwindow_configuration_free_list[10];
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121
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122 #define SET_LAST_MODIFIED(w, cache_too) \
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123 do { \
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124 (w)->last_modified[CURRENT_DISP] = Qzero; \
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125 (w)->last_modified[DESIRED_DISP] = Qzero; \
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126 (w)->last_modified[CMOTION_DISP] = Qzero; \
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127 if (cache_too) \
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128 (w)->line_cache_last_updated = Qzero; \
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129 } while (0)
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130
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131 #define SET_LAST_FACECHANGE(w) \
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132 do { \
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133 (w)->last_facechange[CURRENT_DISP] = Qzero; \
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134 (w)->last_facechange[DESIRED_DISP] = Qzero; \
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135 (w)->last_facechange[CMOTION_DISP] = Qzero; \
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136 } while (0)
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137
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138
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102
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139 #define MARK_DISP_VARIABLE(field) \
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380
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140 markobj (window->field[CURRENT_DISP]); \
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141 markobj (window->field[DESIRED_DISP]); \
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142 markobj (window->field[CMOTION_DISP]);
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0
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143
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144 static Lisp_Object
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145 mark_window (Lisp_Object obj, void (*markobj) (Lisp_Object))
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146 {
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147 struct window *window = XWINDOW (obj);
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380
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148 markobj (window->frame);
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149 markobj (window->mini_p);
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150 markobj (window->next);
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151 markobj (window->prev);
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152 markobj (window->hchild);
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153 markobj (window->vchild);
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154 markobj (window->parent);
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155 markobj (window->buffer);
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0
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156 MARK_DISP_VARIABLE (start);
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157 MARK_DISP_VARIABLE (pointm);
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380
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158 markobj (window->sb_point); /* #### move to scrollbar.c? */
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159 markobj (window->use_time);
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0
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160 MARK_DISP_VARIABLE (last_modified);
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161 MARK_DISP_VARIABLE (last_point);
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162 MARK_DISP_VARIABLE (last_start);
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163 MARK_DISP_VARIABLE (last_facechange);
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380
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164 markobj (window->line_cache_last_updated);
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165 markobj (window->redisplay_end_trigger);
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384
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166 markobj (window->subwindow_instance_cache);
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167
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0
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168 mark_face_cachels (window->face_cachels, markobj);
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169 mark_glyph_cachels (window->glyph_cachels, markobj);
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284
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170
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380
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171 #define WINDOW_SLOT(slot, compare) ((void) (markobj (window->slot)))
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284
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172 #include "winslots.h"
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173
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173
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174 return Qnil;
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0
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175 }
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176
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177 static void
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178 print_window (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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179 {
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180 char buf[200];
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181
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182 if (print_readably)
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183 error ("printing unreadable object #<window 0x%x>",
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184 XWINDOW (obj)->header.uid);
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185
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185
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0
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186 write_c_string ("#<window", printcharfun);
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187 if (!NILP (XWINDOW (obj)->buffer))
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188 {
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189 Lisp_Object name = XBUFFER (XWINDOW (obj)->buffer)->name;
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190 write_c_string (" on ", printcharfun);
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191 print_internal (name, printcharfun, 1);
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192 }
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193 sprintf (buf, " 0x%x>", XWINDOW (obj)->header.uid);
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194 write_c_string (buf, printcharfun);
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195 }
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196
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197 static void
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198 finalize_window (void *header, int for_disksave)
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199 {
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200 struct window *w = (struct window *) header;
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201
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202 if (w->line_start_cache)
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203 {
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204 Dynarr_free (w->line_start_cache);
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205 w->line_start_cache = 0;
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206 }
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207
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208 if (w->face_cachels)
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209 {
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210 int i;
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211
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212 for (i = 0; i < Dynarr_length (w->face_cachels); i++)
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213 {
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214 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i);
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215 if (cachel->merged_faces)
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216 {
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217 Dynarr_free (cachel->merged_faces);
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218 cachel->merged_faces = 0;
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219 }
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220 }
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221 Dynarr_free (w->face_cachels);
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222 w->face_cachels = 0;
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223 }
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224
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225 if (w->glyph_cachels)
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226 {
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227 Dynarr_free (w->glyph_cachels);
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228 w->glyph_cachels = 0;
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229 }
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230 }
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231
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272
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232 DEFINE_LRECORD_IMPLEMENTATION ("window", window,
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233 mark_window, print_window, finalize_window,
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234 0, 0, struct window);
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235
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236
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0
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237 #define INIT_DISP_VARIABLE(field, initialization) \
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238 p->field[CURRENT_DISP] = initialization; \
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239 p->field[DESIRED_DISP] = initialization; \
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240 p->field[CMOTION_DISP] = initialization;
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241
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242 /* We have an implicit assertion that the first two elements (default
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243 and modeline faces) are always present in the face_element_cache.
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244 Normally redisplay ensures this. However, it is possible for a
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245 window to get created and functions which reference these values
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246 called before redisplay works with the window for the first time.
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247 All callers of allocate_window should therefore call
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248 reset_face_cachels on the created window. We can't do it
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249 here because the window must have its frame pointer set or
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250 reset_face_cachels will fail. */
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251 Lisp_Object
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252 allocate_window (void)
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253 {
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272
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254 Lisp_Object val;
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185
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255 struct window *p = alloc_lcrecord_type (struct window, lrecord_window);
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0
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256
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257 zero_lcrecord (p);
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258 XSETWINDOW (val, p);
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259
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260 p->dead = 0;
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261 p->frame = Qnil;
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262 p->mini_p = Qnil;
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263 p->next = Qnil;
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264 p->prev = Qnil;
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185
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265 p->hchild = Qnil;
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266 p->vchild = Qnil;
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0
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267 p->parent = Qnil;
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268 p->buffer = Qnil;
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269 INIT_DISP_VARIABLE (start, Fmake_marker ());
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270 INIT_DISP_VARIABLE (pointm, Fmake_marker ());
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271 p->sb_point = Fmake_marker ();
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272 p->use_time = Qzero;
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273 INIT_DISP_VARIABLE (last_modified, Qzero);
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274 INIT_DISP_VARIABLE (last_point, Fmake_marker ());
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275 INIT_DISP_VARIABLE (last_start, Fmake_marker ());
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276 INIT_DISP_VARIABLE (last_facechange, Qzero);
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185
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277 p->face_cachels = Dynarr_new (face_cachel);
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278 p->glyph_cachels = Dynarr_new (glyph_cachel);
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279 p->line_start_cache = Dynarr_new (line_start_cache);
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384
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280 p->subwindow_instance_cache = make_lisp_hash_table (10,
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281 HASH_TABLE_KEY_WEAK,
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282 HASH_TABLE_EQ);
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0
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283 p->line_cache_last_updated = Qzero;
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284 INIT_DISP_VARIABLE (last_point_x, 0);
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285 INIT_DISP_VARIABLE (last_point_y, 0);
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286 INIT_DISP_VARIABLE (window_end_pos, 0);
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287 p->redisplay_end_trigger = Qnil;
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284
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288
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289 #define WINDOW_SLOT(slot, compare) p->slot = Qnil
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290 #include "winslots.h"
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291
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0
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292 p->windows_changed = 1;
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293 p->shadow_thickness_changed = 1;
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294
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173
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295 return val;
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0
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296 }
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297 #undef INIT_DISP_VARIABLE
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298
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299 /*
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300 * The redisplay structures used to be stored with each window. While
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301 * they are logically something associated with frames they can't be
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302 * stored there with a redisplay which handles variable height lines.
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303 * Lines in horizontally split windows might not line up. So they get
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304 * stored with the windows.
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305 *
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306 * The problem with this is window configurations. When restoring a
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307 * window configuration it now becomes problematic to do an
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308 * incremental redisplay. The solution is to store the redisplay
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309 * structures with the frame as they should be but laid out in the
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310 * same manner as the window structure. Thus is born the window
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311 * mirror.
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312 *
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313 * It also becomes a convenient place to stick scrollbar instances
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314 * since they extrapolate out to having the same problem described for
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315 * the display structures.
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316 */
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317
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102
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318 /* Create a new window mirror structure and associated redisplay
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0
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319 structs. */
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320 static struct window_mirror *
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321 new_window_mirror (struct frame *f)
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322 {
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185
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323 struct window_mirror *t = xnew_and_zero (struct window_mirror);
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0
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324
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325 t->frame = f;
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326
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185
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327 t->current_display_lines = Dynarr_new (display_line);
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328 t->desired_display_lines = Dynarr_new (display_line);
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0
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329 t->buffer = NULL;
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330
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331 #ifdef HAVE_SCROLLBARS
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332 t->scrollbar_vertical_instance = NULL;
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333 t->scrollbar_horizontal_instance = NULL;
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334 #endif
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335
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336 return t;
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337 }
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338
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339 /* Synchronize the mirror structure with a given window structure.
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340 This is normally called from update_frame_window_mirror with a
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341 starting window of f->root_window. */
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342 static struct window_mirror *
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343 update_mirror_internal (Lisp_Object win, struct window_mirror *mir)
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344 {
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345 if (NILP (win))
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346 {
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347 if (mir)
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348 {
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349 free_window_mirror (mir);
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272
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350 mir = NULL;
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0
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351 }
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352 return mir;
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353 }
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354 else
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355 if (!mir)
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356 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame));
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357
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102
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358 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next);
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0
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359 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild);
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360 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild);
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361
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362 /*
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363 * If the redisplay structs are not empty and the mirror has
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364 * children, then this mirror structure was formerly being used for
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365 * display but is no longer. Reset its current display structs so
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366 * that redisplay doesn't accidentally think they are accurate if it
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367 * is later used for display purposes once again. Also, mark the
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368 * scrollbar instance as not active.
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369 */
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370 if (mir->vchild || mir->hchild)
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371 {
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372 /* The redisplay structures are big. Leaving them around in
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373 non-leaf windows can add up to a lot of wasted space. So
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374 don't do it. */
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375 free_display_structs (mir);
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185
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376 mir->current_display_lines = Dynarr_new (display_line);
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377 mir->desired_display_lines = Dynarr_new (display_line);
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0
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378
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379 #ifdef HAVE_SCROLLBARS
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380 update_window_scrollbars (XWINDOW (win), mir, 0, 0);
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381 #endif
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382 mir->buffer = NULL;
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383 }
|
|
|
384
|
|
|
385 return mir;
|
|
|
386 }
|
|
|
387
|
|
|
388 /* Given a window mirror, determine which real window it contains the
|
|
|
389 redisplay structures for. */
|
|
|
390 static Lisp_Object
|
|
|
391 real_window_internal (Lisp_Object win, struct window_mirror *rmir,
|
|
|
392 struct window_mirror *mir)
|
|
|
393 {
|
|
|
394 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next)
|
|
|
395 {
|
|
|
396 if (mir == rmir)
|
|
|
397 return win;
|
|
|
398 if (!NILP (XWINDOW (win)->vchild))
|
|
|
399 {
|
|
380
|
400 Lisp_Object retval =
|
|
|
401 real_window_internal (XWINDOW (win)->vchild, rmir->vchild, mir);
|
|
0
|
402 if (!NILP (retval))
|
|
|
403 return retval;
|
|
|
404 }
|
|
|
405 if (!NILP (XWINDOW (win)->hchild))
|
|
|
406 {
|
|
380
|
407 Lisp_Object retval =
|
|
|
408 real_window_internal (XWINDOW (win)->hchild, rmir->hchild, mir);
|
|
0
|
409 if (!NILP (retval))
|
|
|
410 return retval;
|
|
|
411 }
|
|
|
412 }
|
|
|
413
|
|
|
414 return Qnil;
|
|
|
415 }
|
|
|
416
|
|
|
417 /* Given a real window, find the mirror structure which contains its
|
|
|
418 redisplay structures. */
|
|
|
419 static struct window_mirror *
|
|
|
420 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir,
|
|
|
421 struct window *w)
|
|
|
422 {
|
|
|
423 for (; !NILP (win); win = XWINDOW (win)->next, rmir = rmir->next)
|
|
|
424 {
|
|
|
425 if (w == XWINDOW (win))
|
|
|
426 return rmir;
|
|
272
|
427
|
|
|
428 if (!NILP (XWINDOW (win)->vchild))
|
|
|
429 {
|
|
|
430 struct window_mirror *retval =
|
|
|
431 find_window_mirror_internal (XWINDOW (win)->vchild,
|
|
|
432 rmir->vchild, w);
|
|
|
433 if (retval) return retval;
|
|
|
434 }
|
|
|
435
|
|
|
436 if (!NILP (XWINDOW (win)->hchild))
|
|
|
437 {
|
|
|
438 struct window_mirror *retval =
|
|
|
439 find_window_mirror_internal (XWINDOW (win)->hchild,
|
|
|
440 rmir->hchild, w);
|
|
|
441 if (retval) return retval;
|
|
|
442 }
|
|
0
|
443 }
|
|
|
444
|
|
|
445 return 0;
|
|
|
446 }
|
|
|
447
|
|
|
448 /* Update the mirror structure for the given frame. */
|
|
|
449 void
|
|
|
450 update_frame_window_mirror (struct frame *f)
|
|
|
451 {
|
|
|
452 f->root_mirror = update_mirror_internal (f->root_window, f->root_mirror);
|
|
|
453 f->mirror_dirty = 0;
|
|
|
454 }
|
|
|
455
|
|
|
456 /* Free a given mirror structure along with all of its children as
|
|
|
457 well as their associated display structures. */
|
|
|
458 void
|
|
|
459 free_window_mirror (struct window_mirror *mir)
|
|
|
460 {
|
|
|
461 while (mir)
|
|
|
462 {
|
|
272
|
463 struct window_mirror *prev = mir;
|
|
0
|
464 if (mir->hchild) free_window_mirror (mir->hchild);
|
|
|
465 if (mir->vchild) free_window_mirror (mir->vchild);
|
|
|
466 #ifdef HAVE_SCROLLBARS
|
|
|
467 release_window_mirror_scrollbars (mir);
|
|
|
468 #endif
|
|
|
469 free_display_structs (mir);
|
|
|
470 mir = mir->next;
|
|
272
|
471 xfree (prev);
|
|
0
|
472 }
|
|
|
473 }
|
|
|
474
|
|
|
475 /* Given a mirror structure, return the window it mirrors. Calls
|
|
|
476 real_window_internal to do most of the work. */
|
|
|
477 Lisp_Object
|
|
|
478 real_window (struct window_mirror *mir, int no_abort)
|
|
|
479 {
|
|
272
|
480 Lisp_Object retval = real_window_internal (mir->frame->root_window,
|
|
|
481 mir->frame->root_mirror, mir);
|
|
0
|
482 if (NILP (retval) && !no_abort)
|
|
|
483 abort ();
|
|
|
484
|
|
|
485 return retval;
|
|
|
486 }
|
|
|
487
|
|
|
488 /* Given a real window, return its mirror structure. Calls
|
|
|
489 find_window_mirror_internal to do all of the work. */
|
|
|
490 struct window_mirror *
|
|
|
491 find_window_mirror (struct window *w)
|
|
|
492 {
|
|
|
493 struct frame *f = XFRAME (w->frame);
|
|
|
494 if (f->mirror_dirty)
|
|
|
495 update_frame_window_mirror (f);
|
|
|
496 return find_window_mirror_internal (f->root_window, f->root_mirror, w);
|
|
|
497 }
|
|
|
498
|
|
|
499 /*****************************************************************************
|
|
|
500 find_window_by_pixel_pos
|
|
|
501
|
|
|
502 Given a pixel position relative to a frame, find the window at that
|
|
|
503 position.
|
|
|
504 ****************************************************************************/
|
|
|
505 struct window *
|
|
272
|
506 find_window_by_pixel_pos (int pix_x, int pix_y, Lisp_Object win)
|
|
0
|
507 {
|
|
|
508 if (NILP (win))
|
|
|
509 return 0;
|
|
|
510
|
|
|
511 for (; !NILP (win); win = XWINDOW (win)->next)
|
|
|
512 {
|
|
272
|
513 struct window *w;
|
|
|
514
|
|
|
515 if (!NILP (XWINDOW (win)->vchild))
|
|
|
516 {
|
|
|
517 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild);
|
|
|
518 if (w) return w;
|
|
|
519 }
|
|
|
520 if (!NILP (XWINDOW (win)->hchild))
|
|
|
521 {
|
|
|
522 w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild);
|
|
|
523 if (w) return w;
|
|
|
524 }
|
|
0
|
525 w = XWINDOW (win);
|
|
|
526 if (pix_x >= WINDOW_LEFT (w)
|
|
|
527 && pix_x <= WINDOW_RIGHT (w)
|
|
|
528 && pix_y >= WINDOW_TOP (w)
|
|
|
529 && pix_y <= WINDOW_BOTTOM (w))
|
|
|
530 return w;
|
|
|
531 }
|
|
272
|
532 return NULL;
|
|
0
|
533 }
|
|
|
534
|
|
|
535 /* Return a pointer to the display structures for the given window. */
|
|
|
536 display_line_dynarr *
|
|
|
537 window_display_lines (struct window *w, int which)
|
|
|
538 {
|
|
|
539 struct window_mirror *t;
|
|
|
540
|
|
|
541 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
542 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
543 t = find_window_mirror (w);
|
|
|
544 if (!t)
|
|
|
545 abort ();
|
|
|
546
|
|
|
547 if (which == CURRENT_DISP)
|
|
|
548 return t->current_display_lines;
|
|
|
549 else if (which == DESIRED_DISP)
|
|
|
550 return t->desired_display_lines;
|
|
|
551 else if (which == CMOTION_DISP)
|
|
|
552 /* The CMOTION_DISP display lines are global. */
|
|
|
553 return cmotion_display_lines;
|
|
|
554 else
|
|
|
555 abort ();
|
|
|
556
|
|
|
557 return 0; /* shut up compiler */
|
|
|
558 }
|
|
|
559
|
|
|
560 struct buffer *
|
|
|
561 window_display_buffer (struct window *w)
|
|
|
562 {
|
|
|
563 struct window_mirror *t;
|
|
|
564
|
|
|
565 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
566 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
567 t = find_window_mirror (w);
|
|
|
568 if (!t)
|
|
|
569 abort ();
|
|
|
570
|
|
|
571 return t->buffer;
|
|
|
572 }
|
|
|
573
|
|
|
574 void
|
|
|
575 set_window_display_buffer (struct window *w, struct buffer *b)
|
|
|
576 {
|
|
|
577 struct window_mirror *t;
|
|
|
578
|
|
|
579 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
580 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
581 t = find_window_mirror (w);
|
|
|
582 if (!t)
|
|
|
583 abort ();
|
|
|
584
|
|
|
585 t->buffer = b;
|
|
|
586 }
|
|
|
587
|
|
|
588
|
|
102
|
589 /* Determining a window's position based solely on its pixel
|
|
0
|
590 positioning doesn't work. Instead, we do it the intelligent way,
|
|
|
591 by checking its positioning in the window hierarchy. */
|
|
|
592 int
|
|
|
593 window_is_leftmost (struct window *w)
|
|
|
594 {
|
|
|
595 Lisp_Object parent, current_ancestor, window;
|
|
|
596
|
|
|
597 XSETWINDOW (window, w);
|
|
|
598
|
|
|
599 parent = XWINDOW (window)->parent;
|
|
|
600 current_ancestor = window;
|
|
|
601
|
|
|
602 while (!NILP (parent))
|
|
|
603 {
|
|
|
604 if (!NILP (XWINDOW (parent)->hchild) &&
|
|
|
605 !EQ (XWINDOW (parent)->hchild, current_ancestor))
|
|
|
606 return 0;
|
|
|
607
|
|
|
608 current_ancestor = parent;
|
|
|
609 parent = XWINDOW (parent)->parent;
|
|
|
610 }
|
|
|
611
|
|
|
612 return 1;
|
|
|
613 }
|
|
|
614
|
|
|
615 int
|
|
|
616 window_is_rightmost (struct window *w)
|
|
|
617 {
|
|
|
618 Lisp_Object parent, current_ancestor, window;
|
|
|
619
|
|
|
620 XSETWINDOW (window, w);
|
|
|
621
|
|
|
622 parent = XWINDOW (window)->parent;
|
|
|
623 current_ancestor = window;
|
|
|
624
|
|
|
625 while (!NILP (parent))
|
|
|
626 {
|
|
|
627 if (!NILP (XWINDOW (parent)->hchild)
|
|
|
628 && !NILP (XWINDOW (current_ancestor)->next))
|
|
|
629 return 0;
|
|
|
630
|
|
|
631 current_ancestor = parent;
|
|
|
632 parent = XWINDOW (parent)->parent;
|
|
|
633 }
|
|
|
634
|
|
|
635 return 1;
|
|
|
636 }
|
|
|
637
|
|
|
638 static int
|
|
|
639 window_full_width_p (struct window *w)
|
|
|
640 {
|
|
|
641 return window_is_leftmost (w) && window_is_rightmost (w);
|
|
|
642 }
|
|
|
643
|
|
|
644 static int
|
|
|
645 window_is_highest (struct window *w)
|
|
|
646 {
|
|
|
647 Lisp_Object parent, current_ancestor, window;
|
|
|
648
|
|
|
649 XSETWINDOW (window, w);
|
|
|
650
|
|
|
651 parent = XWINDOW (window)->parent;
|
|
|
652 current_ancestor = window;
|
|
|
653
|
|
|
654 while (!NILP (parent))
|
|
|
655 {
|
|
|
656 if (!NILP (XWINDOW (parent)->vchild) &&
|
|
|
657 !EQ (XWINDOW (parent)->vchild, current_ancestor))
|
|
|
658 return 0;
|
|
|
659
|
|
|
660 current_ancestor = parent;
|
|
|
661 parent = XWINDOW (parent)->parent;
|
|
|
662 }
|
|
|
663
|
|
|
664 /* This is really to catch the minibuffer but we make it generic in
|
|
|
665 case we ever change things around to let the minibuffer be on top. */
|
|
|
666 if (NILP (XWINDOW (current_ancestor)->prev))
|
|
|
667 return 1;
|
|
|
668 else
|
|
|
669 return 0;
|
|
|
670 }
|
|
|
671
|
|
|
672 static int
|
|
|
673 window_is_lowest (struct window *w)
|
|
|
674 {
|
|
|
675 Lisp_Object parent, current_ancestor, window;
|
|
|
676
|
|
|
677 XSETWINDOW (window, w);
|
|
|
678
|
|
|
679 parent = XWINDOW (window)->parent;
|
|
|
680 current_ancestor = window;
|
|
|
681
|
|
|
682 while (!NILP (parent))
|
|
|
683 {
|
|
|
684 if (!NILP (XWINDOW (parent)->vchild)
|
|
|
685 && !NILP (XWINDOW (current_ancestor)->next))
|
|
|
686 return 0;
|
|
|
687
|
|
|
688 current_ancestor = parent;
|
|
|
689 parent = XWINDOW (parent)->parent;
|
|
|
690 }
|
|
|
691
|
|
|
692 return 1;
|
|
|
693 }
|
|
|
694
|
|
|
695 #if 0 /* not currently used */
|
|
|
696
|
|
|
697 static int
|
|
|
698 window_full_height_p (struct window *w)
|
|
|
699 {
|
|
|
700 return window_is_highest (w) && window_is_lowest (w);
|
|
|
701 }
|
|
|
702
|
|
|
703 #endif
|
|
|
704
|
|
|
705 int
|
|
|
706 window_truncation_on (struct window *w)
|
|
|
707 {
|
|
|
708 /* Horizontally scrolled windows are truncated. */
|
|
|
709 if (w->hscroll)
|
|
|
710 return 1;
|
|
|
711
|
|
|
712 /* If truncate_partial_width_windows is true and the window is not
|
|
|
713 the full width of the frame it is truncated. */
|
|
|
714 if (truncate_partial_width_windows
|
|
|
715 && !(window_is_leftmost (w) && window_is_rightmost (w)))
|
|
|
716 return 1;
|
|
|
717
|
|
|
718 /* If the window's buffer's value of truncate_lines is non-nil, then
|
|
|
719 the window is truncated. */
|
|
|
720 if (!NILP (XBUFFER (w->buffer)->truncate_lines))
|
|
|
721 return 1;
|
|
|
722
|
|
|
723 return 0;
|
|
|
724 }
|
|
|
725
|
|
286
|
726 static int
|
|
284
|
727 have_undivided_common_edge (struct window *w_right, void *closure)
|
|
|
728 {
|
|
|
729 struct window *w_left = (struct window *) closure;
|
|
|
730 return (WINDOW_RIGHT (w_left) == WINDOW_LEFT (w_right)
|
|
|
731 && WINDOW_TOP (w_left) < WINDOW_BOTTOM (w_right)
|
|
|
732 && WINDOW_TOP (w_right) < WINDOW_BOTTOM (w_left)
|
|
|
733 #ifdef HAVE_SCROLLBARS
|
|
|
734 && (NILP (w_right->scrollbar_on_left_p)
|
|
|
735 || NILP (w_right->vertical_scrollbar_visible_p)
|
|
|
736 || ZEROP (w_right->scrollbar_width))
|
|
|
737 #endif
|
|
|
738 );
|
|
|
739 }
|
|
|
740
|
|
|
741 static int
|
|
|
742 window_needs_vertical_divider_1 (struct window *w)
|
|
|
743 {
|
|
|
744 /* Never if we're on the right */
|
|
|
745 if (window_is_rightmost (w))
|
|
|
746 return 0;
|
|
|
747
|
|
|
748 /* Always if draggable */
|
|
298
|
749 if (!NILP (w->vertical_divider_always_visible_p))
|
|
284
|
750 return 1;
|
|
|
751
|
|
|
752 #ifdef HAVE_SCROLLBARS
|
|
380
|
753 /* Our right scrollbar is enough to separate us at the right */
|
|
284
|
754 if (NILP (w->scrollbar_on_left_p)
|
|
|
755 && !NILP (w->vertical_scrollbar_visible_p)
|
|
|
756 && !ZEROP (w->scrollbar_width))
|
|
|
757 return 0;
|
|
|
758 #endif
|
|
|
759
|
|
|
760 /* Ok. to determine whether we need a divider on the left, we must
|
|
286
|
761 check that our right neighbor windows have scrollbars on their
|
|
|
762 left sides. We must check all such windows which have common
|
|
284
|
763 left edge with our window's right edge. */
|
|
|
764 return map_windows (XFRAME (WINDOW_FRAME (w)),
|
|
|
765 have_undivided_common_edge, (void*)w);
|
|
|
766 }
|
|
|
767
|
|
|
768 int
|
|
0
|
769 window_needs_vertical_divider (struct window *w)
|
|
|
770 {
|
|
284
|
771 if (!w->need_vertical_divider_valid_p)
|
|
|
772 {
|
|
|
773 w->need_vertical_divider_p =
|
|
|
774 window_needs_vertical_divider_1 (w);
|
|
|
775 w->need_vertical_divider_valid_p = 1;
|
|
|
776 }
|
|
|
777 return w->need_vertical_divider_p;
|
|
|
778 }
|
|
|
779
|
|
|
780 /* Called from invalidate_vertical_divider_cache_in_frame */
|
|
|
781 int
|
|
|
782 invalidate_vertical_divider_cache_in_window (struct window *w,
|
|
|
783 void *u_n_u_s_e_d)
|
|
|
784 {
|
|
|
785 w->need_vertical_divider_valid_p = 0;
|
|
|
786 return 0;
|
|
|
787 }
|
|
|
788
|
|
|
789 /* Calculate width of vertical divider, including its shadows
|
|
|
790 and spacing. The returned value is effectively the distance
|
|
|
791 between adjacent window edges. This function does not check
|
|
380
|
792 whether a window needs a vertical divider, so the returned
|
|
284
|
793 value is a "theoretical" one */
|
|
|
794 int
|
|
|
795 window_divider_width (struct window *w)
|
|
|
796 {
|
|
|
797 /* the shadow thickness can be negative. This means that the divider
|
|
|
798 will have a depressed look */
|
|
|
799
|
|
|
800 if (FRAME_WIN_P (XFRAME (WINDOW_FRAME (w))))
|
|
380
|
801 return
|
|
284
|
802 XINT (w->vertical_divider_line_width)
|
|
|
803 + 2 * XINT (w->vertical_divider_spacing)
|
|
|
804 + 2 * abs (XINT (w->vertical_divider_shadow_thickness));
|
|
|
805 else
|
|
|
806 return XINT (w->vertical_divider_line_width) == 0 ? 0 : 1;
|
|
0
|
807 }
|
|
|
808
|
|
|
809 int
|
|
|
810 window_scrollbar_width (struct window *w)
|
|
|
811 {
|
|
|
812 #ifdef HAVE_SCROLLBARS
|
|
|
813 if (!WINDOW_WIN_P (w)
|
|
|
814 || MINI_WINDOW_P (w)
|
|
282
|
815 || NILP (w->buffer)
|
|
|
816 || NILP (w->vertical_scrollbar_visible_p))
|
|
0
|
817 /* #### when does NILP (w->buffer) happen? */
|
|
|
818 return 0;
|
|
|
819
|
|
|
820 return XINT (w->scrollbar_width);
|
|
|
821 #else
|
|
|
822 return 0;
|
|
102
|
823 #endif /* HAVE_SCROLLBARS */
|
|
0
|
824 }
|
|
|
825
|
|
|
826 /* Horizontal scrollbars are only active on windows with truncation
|
|
|
827 turned on. */
|
|
|
828 int
|
|
|
829 window_scrollbar_height (struct window *w)
|
|
|
830 {
|
|
|
831 #ifdef HAVE_SCROLLBARS
|
|
|
832 if (!WINDOW_WIN_P (w)
|
|
|
833 || MINI_WINDOW_P (w)
|
|
|
834 || NILP (w->buffer)
|
|
282
|
835 || NILP (w->horizontal_scrollbar_visible_p)
|
|
0
|
836 || !window_truncation_on (w))
|
|
|
837 return 0;
|
|
|
838
|
|
|
839 return XINT (w->scrollbar_height);
|
|
|
840 #else
|
|
|
841 return 0;
|
|
102
|
842 #endif /* HAVE_SCROLLBARS */
|
|
0
|
843 }
|
|
|
844
|
|
|
845 int
|
|
|
846 window_modeline_height (struct window *w)
|
|
|
847 {
|
|
|
848 struct frame *f = XFRAME (w->frame);
|
|
|
849 int modeline_height;
|
|
|
850
|
|
|
851 if (MINI_WINDOW_P (w) || NILP (w->buffer))
|
|
|
852 {
|
|
|
853 modeline_height = 0;
|
|
|
854 }
|
|
|
855 else if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
856 {
|
|
|
857 if (window_scrollbar_height (w))
|
|
|
858 modeline_height = 0;
|
|
|
859 else
|
|
|
860 {
|
|
|
861 modeline_height = FRAMEMETH (f, divider_height, ());
|
|
|
862
|
|
|
863 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
864 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
865 }
|
|
|
866 }
|
|
|
867 else
|
|
|
868 {
|
|
|
869 if (noninteractive)
|
|
|
870 modeline_height = 0;
|
|
|
871 else
|
|
|
872 {
|
|
|
873 display_line_dynarr *dla;
|
|
|
874
|
|
|
875 /* We don't force a regeneration of the modeline here.
|
|
|
876 Instead it is now a precondition that any function calling
|
|
|
877 this should make sure that one of these structures is
|
|
|
878 up-to-date. In practice this only affects two internal
|
|
|
879 redisplay functions, regenerate_window and
|
|
|
880 regenerate_window_point_center. */
|
|
|
881 /* We check DESIRED_DISP because if it is valid it is more
|
|
|
882 up-to-date than CURRENT_DISP. For calls to this outside
|
|
|
883 of redisplay it doesn't matter which structure we check
|
|
|
884 since there is a redisplay condition that these
|
|
|
885 structures be identical outside of redisplay. */
|
|
|
886 dla = window_display_lines (w, DESIRED_DISP);
|
|
|
887 if (dla && Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
888 modeline_height = (Dynarr_atp (dla, 0)->ascent +
|
|
|
889 Dynarr_atp (dla, 0)->descent);
|
|
|
890 else
|
|
|
891 {
|
|
|
892 dla = window_display_lines (w, CURRENT_DISP);
|
|
|
893 if (dla && Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
894 modeline_height = (Dynarr_atp (dla, 0)->ascent +
|
|
|
895 Dynarr_atp (dla, 0)->descent);
|
|
|
896 else
|
|
|
897 /* This should be an abort except I'm not yet 100%
|
|
|
898 confident that it won't ever get hit (though I
|
|
|
899 haven't been able to trigger it). It is extremely
|
|
380
|
900 unlikely to cause any noticeable problem and even if
|
|
0
|
901 it does it will be a minor display glitch. */
|
|
|
902 /* #### Bullshit alert. It does get hit and it causes
|
|
|
903 noticeable glitches. real_current_modeline_height
|
|
|
904 is a kludge to fix this for 19.14. */
|
|
|
905 modeline_height = real_current_modeline_height (w);
|
|
|
906 }
|
|
|
907
|
|
|
908 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
909 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
910 }
|
|
|
911 }
|
|
|
912
|
|
|
913 return modeline_height;
|
|
|
914 }
|
|
|
915
|
|
|
916 /*****************************************************************************
|
|
|
917 margin_width_internal
|
|
|
918
|
|
|
919 For a given window, return the width in pixels of the specified margin.
|
|
|
920 ****************************************************************************/
|
|
|
921 static int
|
|
|
922 margin_width_internal (struct window *w, int left_margin)
|
|
|
923 {
|
|
|
924 struct buffer *b;
|
|
|
925 int window_cwidth = window_char_width (w, 1);
|
|
|
926 int margin_cwidth;
|
|
|
927 int font_width;
|
|
272
|
928 Lisp_Object window;
|
|
0
|
929
|
|
|
930 /* We might be getting called on a non-leaf. */
|
|
|
931 if (NILP (w->buffer))
|
|
|
932 return 0;
|
|
|
933
|
|
|
934 /* The minibuffer never has margins. */
|
|
|
935 if (MINI_WINDOW_P (w))
|
|
|
936 return 0;
|
|
|
937
|
|
|
938 XSETWINDOW (window, w);
|
|
|
939 b = XBUFFER (w->buffer);
|
|
|
940 margin_cwidth = (left_margin ? XINT (w->left_margin_width) :
|
|
|
941 XINT (w->right_margin_width));
|
|
|
942
|
|
|
943 default_face_height_and_width (window, 0, &font_width);
|
|
|
944
|
|
|
945 /* The left margin takes precedence over the right margin so we
|
|
|
946 subtract its width from the space available for the right
|
|
|
947 margin. */
|
|
|
948 if (!left_margin)
|
|
|
949 window_cwidth -= XINT (w->left_margin_width);
|
|
|
950
|
|
|
951 /* The margin cannot be wider than the window is. We allow the
|
|
|
952 value to be bigger since it is possible for the user to enlarge
|
|
|
953 the window such that the left margin value would no longer be too
|
|
|
954 big, but we won't return a value that is larger. */
|
|
|
955 if (margin_cwidth > window_cwidth)
|
|
|
956 margin_cwidth = window_cwidth;
|
|
|
957
|
|
|
958 /* At the user level the margin is always specified in characters.
|
|
|
959 Internally however it is manipulated in terms of pixels. */
|
|
173
|
960 return margin_cwidth * font_width;
|
|
0
|
961 }
|
|
|
962
|
|
|
963 int
|
|
|
964 window_left_margin_width (struct window *w)
|
|
|
965 {
|
|
|
966 return margin_width_internal (w, 1);
|
|
|
967 }
|
|
|
968
|
|
|
969 int
|
|
|
970 window_right_margin_width (struct window *w)
|
|
|
971 {
|
|
|
972 return margin_width_internal (w, 0);
|
|
|
973 }
|
|
|
974
|
|
|
975 static int
|
|
|
976 window_top_toolbar_height (struct window *w)
|
|
|
977 {
|
|
|
978 /* #### implement this shit. */
|
|
|
979 return 0;
|
|
|
980 }
|
|
|
981
|
|
|
982 /* #### Currently used in scrollbar.c. Does it actually need to be? */
|
|
|
983 int
|
|
|
984 window_bottom_toolbar_height (struct window *w)
|
|
|
985 {
|
|
|
986 return 0;
|
|
|
987 }
|
|
|
988
|
|
|
989 static int
|
|
|
990 window_left_toolbar_width (struct window *w)
|
|
|
991 {
|
|
|
992 return 0;
|
|
|
993 }
|
|
|
994
|
|
|
995 static int
|
|
|
996 window_right_toolbar_width (struct window *w)
|
|
|
997 {
|
|
|
998 return 0;
|
|
|
999 }
|
|
|
1000
|
|
|
1001 /*****************************************************************************
|
|
|
1002 Window Gutters
|
|
|
1003
|
|
|
1004 The gutters of a window are those areas in the boundary defined by
|
|
|
1005 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which
|
|
|
1006 do not contain text. Items which may be in the gutters include
|
|
|
1007 scrollbars, toolbars and modelines. The margin areas are not
|
|
|
1008 included. This is an exception made because redisplay special cases
|
|
|
1009 the handling of those areas in many places in such a way that
|
|
|
1010 including them in the gutter area would make life difficult.
|
|
|
1011
|
|
|
1012 The size functions refer to height for the bottom and top gutters and
|
|
|
1013 width for the left and right gutters. The starting position
|
|
|
1014 functions refer to the Y coord for bottom and top gutters and the X
|
|
|
1015 coord for left and right gutters. All starting positions are
|
|
|
1016 relative to the frame, not the window.
|
|
|
1017 ****************************************************************************/
|
|
|
1018
|
|
|
1019 int
|
|
|
1020 window_top_gutter_height (struct window *w)
|
|
|
1021 {
|
|
|
1022 int toolbar_height = window_top_toolbar_height (w);
|
|
|
1023
|
|
|
1024 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1025 return 0;
|
|
|
1026
|
|
|
1027 #ifdef HAVE_SCROLLBARS
|
|
282
|
1028 if (!NILP (w->scrollbar_on_top_p))
|
|
0
|
1029 return window_scrollbar_height (w) + toolbar_height;
|
|
|
1030 else
|
|
|
1031 #endif
|
|
|
1032 return toolbar_height;
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 int
|
|
|
1036 window_bottom_gutter_height (struct window *w)
|
|
|
1037 {
|
|
185
|
1038 int other_height;
|
|
0
|
1039
|
|
|
1040 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1041 return 0;
|
|
|
1042 else
|
|
|
1043 other_height =
|
|
|
1044 window_modeline_height (w) + window_bottom_toolbar_height (w);
|
|
|
1045
|
|
|
1046 #ifdef HAVE_SCROLLBARS
|
|
282
|
1047 if (NILP (w->scrollbar_on_top_p))
|
|
0
|
1048 return window_scrollbar_height (w) + other_height;
|
|
|
1049 else
|
|
|
1050 #endif
|
|
|
1051 return other_height;
|
|
|
1052 }
|
|
|
1053
|
|
|
1054 int
|
|
|
1055 window_left_gutter_width (struct window *w, int modeline)
|
|
|
1056 {
|
|
284
|
1057 int gutter = window_left_toolbar_width (w);
|
|
380
|
1058
|
|
0
|
1059 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1060 return 0;
|
|
|
1061
|
|
284
|
1062
|
|
0
|
1063 #ifdef HAVE_SCROLLBARS
|
|
284
|
1064 if (!modeline && !NILP (w->scrollbar_on_left_p))
|
|
|
1065 gutter += window_scrollbar_width (w);
|
|
0
|
1066 #endif
|
|
284
|
1067
|
|
|
1068 return gutter;
|
|
0
|
1069 }
|
|
|
1070
|
|
|
1071 int
|
|
|
1072 window_right_gutter_width (struct window *w, int modeline)
|
|
|
1073 {
|
|
380
|
1074 int gutter = window_right_toolbar_width (w);
|
|
|
1075
|
|
0
|
1076 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1077 return 0;
|
|
|
1078
|
|
|
1079 #ifdef HAVE_SCROLLBARS
|
|
284
|
1080 if (!modeline && NILP (w->scrollbar_on_left_p))
|
|
|
1081 gutter += window_scrollbar_width (w);
|
|
0
|
1082 #endif
|
|
284
|
1083
|
|
|
1084 if (window_needs_vertical_divider (w))
|
|
|
1085 gutter += window_divider_width (w);
|
|
|
1086
|
|
|
1087 return gutter;
|
|
0
|
1088 }
|
|
|
1089
|
|
|
1090
|
|
20
|
1091 DEFUN ("windowp", Fwindowp, 1, 1, 0, /*
|
|
0
|
1092 Return t if OBJ is a window.
|
|
20
|
1093 */
|
|
|
1094 (obj))
|
|
0
|
1095 {
|
|
173
|
1096 return WINDOWP (obj) ? Qt : Qnil;
|
|
0
|
1097 }
|
|
|
1098
|
|
20
|
1099 DEFUN ("window-live-p", Fwindow_live_p, 1, 1, 0, /*
|
|
0
|
1100 Return t if OBJ is a window which is currently visible.
|
|
20
|
1101 */
|
|
|
1102 (obj))
|
|
0
|
1103 {
|
|
173
|
1104 return WINDOWP (obj) && WINDOW_LIVE_P (XWINDOW (obj)) ? Qt : Qnil;
|
|
0
|
1105 }
|
|
|
1106
|
|
20
|
1107 DEFUN ("selected-window", Fselected_window, 0, 1, 0, /*
|
|
0
|
1108 Return the window that the cursor now appears in and commands apply to.
|
|
|
1109 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return
|
|
|
1110 the selected window used by that frame. If CON-DEV-OR-FRAME is a device,
|
|
|
1111 then the selected frame on that device will be used. If CON-DEV-OR-FRAME
|
|
|
1112 is a console, the selected frame on that console's selected device will
|
|
|
1113 be used. Otherwise, the selected frame is used.
|
|
20
|
1114 */
|
|
|
1115 (con_dev_or_frame))
|
|
0
|
1116 {
|
|
|
1117 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil)))
|
|
|
1118 return Qnil; /* happens at startup */
|
|
|
1119
|
|
272
|
1120 {
|
|
|
1121 struct frame *f = decode_frame_or_selected (con_dev_or_frame);
|
|
|
1122 return FRAME_SELECTED_WINDOW (f);
|
|
|
1123 }
|
|
0
|
1124 }
|
|
|
1125
|
|
20
|
1126 DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /*
|
|
0
|
1127 Return the window used now for minibuffers.
|
|
|
1128 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return
|
|
|
1129 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device,
|
|
|
1130 then the selected frame on that device will be used. If CON-DEV-OR-FRAME
|
|
|
1131 is a console, the selected frame on that console's selected device will
|
|
|
1132 be used. Otherwise, the selected frame is used.
|
|
20
|
1133 */
|
|
|
1134 (con_dev_or_frame))
|
|
0
|
1135 {
|
|
272
|
1136 return FRAME_MINIBUF_WINDOW (decode_frame_or_selected (con_dev_or_frame));
|
|
0
|
1137 }
|
|
|
1138
|
|
20
|
1139 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, 1, 1, 0, /*
|
|
0
|
1140 Return non-nil if WINDOW is a minibuffer window.
|
|
20
|
1141 */
|
|
|
1142 (window))
|
|
0
|
1143 {
|
|
173
|
1144 return MINI_WINDOW_P (decode_window (window)) ? Qt : Qnil;
|
|
0
|
1145 }
|
|
|
1146
|
|
20
|
1147 DEFUN ("window-first-hchild", Fwindow_first_hchild, 1, 1, 0, /*
|
|
0
|
1148 Return the first horizontal child of WINDOW, or nil.
|
|
20
|
1149 */
|
|
|
1150 (window))
|
|
0
|
1151 {
|
|
102
|
1152 return decode_window (window)->hchild;
|
|
0
|
1153 }
|
|
|
1154
|
|
20
|
1155 DEFUN ("window-first-vchild", Fwindow_first_vchild, 1, 1, 0, /*
|
|
0
|
1156 Return the first vertical child of WINDOW, or nil.
|
|
20
|
1157 */
|
|
|
1158 (window))
|
|
0
|
1159 {
|
|
102
|
1160 return decode_window (window)->vchild;
|
|
0
|
1161 }
|
|
|
1162
|
|
20
|
1163 DEFUN ("window-next-child", Fwindow_next_child, 1, 1, 0, /*
|
|
0
|
1164 Return the next window on the same level as WINDOW, or nil.
|
|
20
|
1165 */
|
|
|
1166 (window))
|
|
0
|
1167 {
|
|
102
|
1168 return decode_window (window)->next;
|
|
0
|
1169 }
|
|
|
1170
|
|
20
|
1171 DEFUN ("window-previous-child", Fwindow_previous_child, 1, 1, 0, /*
|
|
0
|
1172 Return the previous window on the same level as WINDOW, or nil.
|
|
20
|
1173 */
|
|
|
1174 (window))
|
|
0
|
1175 {
|
|
102
|
1176 return decode_window (window)->prev;
|
|
0
|
1177 }
|
|
|
1178
|
|
20
|
1179 DEFUN ("window-parent", Fwindow_parent, 1, 1, 0, /*
|
|
0
|
1180 Return the parent of WINDOW, or nil.
|
|
20
|
1181 */
|
|
|
1182 (window))
|
|
0
|
1183 {
|
|
102
|
1184 return decode_window (window)->parent;
|
|
0
|
1185 }
|
|
|
1186
|
|
20
|
1187 DEFUN ("window-lowest-p", Fwindow_lowest_p, 1, 1, 0, /*
|
|
0
|
1188 Return non-nil if WINDOW is along the bottom of its frame.
|
|
20
|
1189 */
|
|
|
1190 (window))
|
|
0
|
1191 {
|
|
102
|
1192 return window_is_lowest (decode_window (window)) ? Qt : Qnil;
|
|
0
|
1193 }
|
|
|
1194
|
|
20
|
1195 DEFUN ("window-highest-p", Fwindow_highest_p, 1, 1, 0, /*
|
|
0
|
1196 Return non-nil if WINDOW is along the top of its frame.
|
|
20
|
1197 */
|
|
|
1198 (window))
|
|
0
|
1199 {
|
|
102
|
1200 return window_is_highest (decode_window (window)) ? Qt : Qnil;
|
|
0
|
1201 }
|
|
|
1202
|
|
20
|
1203 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, 1, 1, 0, /*
|
|
0
|
1204 Return non-nil if WINDOW is along the left edge of its frame.
|
|
20
|
1205 */
|
|
|
1206 (window))
|
|
0
|
1207 {
|
|
102
|
1208 return window_is_leftmost (decode_window (window)) ? Qt : Qnil;
|
|
0
|
1209 }
|
|
|
1210
|
|
20
|
1211 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, 1, 1, 0, /*
|
|
0
|
1212 Return non-nil if WINDOW is along the right edge of its frame.
|
|
20
|
1213 */
|
|
|
1214 (window))
|
|
0
|
1215 {
|
|
102
|
1216 return window_is_rightmost (decode_window (window)) ? Qt : Qnil;
|
|
0
|
1217 }
|
|
|
1218
|
|
20
|
1219 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, 0, 2, 0, /*
|
|
0
|
1220 Return t if position POS is currently on the frame in WINDOW.
|
|
|
1221 Returns nil if that position is scrolled vertically out of view.
|
|
|
1222 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window.
|
|
20
|
1223 */
|
|
|
1224 (pos, window))
|
|
0
|
1225 {
|
|
102
|
1226 struct window *w = decode_window (window);
|
|
272
|
1227 Bufpos top = marker_position (w->start[CURRENT_DISP]);
|
|
0
|
1228 Bufpos posint;
|
|
272
|
1229 struct buffer *buf = XBUFFER (w->buffer);
|
|
0
|
1230
|
|
|
1231 if (NILP (pos))
|
|
|
1232 posint = BUF_PT (buf);
|
|
|
1233 else
|
|
|
1234 {
|
|
|
1235 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1236 posint = XINT (pos);
|
|
|
1237 }
|
|
|
1238
|
|
|
1239 if (posint < top || posint > BUF_ZV (buf))
|
|
|
1240 return Qnil;
|
|
|
1241
|
|
|
1242 /* w->start can be out of range. If it is, do something reasonable. */
|
|
|
1243 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf))
|
|
|
1244 return Qnil;
|
|
|
1245
|
|
272
|
1246 return point_would_be_visible (w, top, posint) ? Qt : Qnil;
|
|
0
|
1247 }
|
|
|
1248
|
|
|
1249
|
|
|
1250 struct window *
|
|
|
1251 decode_window (Lisp_Object window)
|
|
|
1252 {
|
|
|
1253 if (NILP (window))
|
|
|
1254 return XWINDOW (Fselected_window (Qnil));
|
|
|
1255
|
|
|
1256 CHECK_LIVE_WINDOW (window);
|
|
|
1257 return XWINDOW (window);
|
|
|
1258 }
|
|
|
1259
|
|
20
|
1260 DEFUN ("window-buffer", Fwindow_buffer, 0, 1, 0, /*
|
|
0
|
1261 Return the buffer that WINDOW is displaying.
|
|
20
|
1262 */
|
|
|
1263 (window))
|
|
0
|
1264 {
|
|
|
1265 return decode_window (window)->buffer;
|
|
|
1266 }
|
|
|
1267
|
|
20
|
1268 DEFUN ("window-frame", Fwindow_frame, 0, 1, 0, /*
|
|
0
|
1269 Return the frame that window WINDOW is on.
|
|
20
|
1270 */
|
|
|
1271 (window))
|
|
0
|
1272 {
|
|
|
1273 return decode_window (window)->frame;
|
|
|
1274 }
|
|
|
1275
|
|
20
|
1276 DEFUN ("window-height", Fwindow_height, 0, 1, 0, /*
|
|
0
|
1277 Return the number of default lines in WINDOW.
|
|
|
1278 This actually works by dividing the window's pixel height (including
|
|
|
1279 the modeline and horizontal scrollbar, if any) by the height of the
|
|
|
1280 default font; therefore, the number of displayed lines will probably
|
|
|
1281 be different.
|
|
|
1282 Use `window-height' to get consistent results in geometry calculations.
|
|
|
1283 Use `window-displayed-height' to get the actual number of lines
|
|
|
1284 currently displayed in a window.
|
|
20
|
1285 */
|
|
|
1286 (window))
|
|
0
|
1287 {
|
|
|
1288 return make_int (window_char_height (decode_window (window), 1));
|
|
|
1289 }
|
|
|
1290
|
|
20
|
1291 DEFUN ("window-displayed-height", Fwindow_displayed_height, 0, 1, 0, /*
|
|
0
|
1292 Return the number of lines currently displayed in WINDOW.
|
|
|
1293 This counts the actual number of lines displayed in WINDOW
|
|
272
|
1294 \(as opposed to `window-height'). The modeline and horizontal
|
|
0
|
1295 scrollbar do not count as lines. If there is some blank space
|
|
|
1296 between the end of the buffer and the end of the window, this
|
|
|
1297 function pretends that there are lines of text in the default
|
|
|
1298 font there.
|
|
20
|
1299 */
|
|
70
|
1300 (window))
|
|
0
|
1301 {
|
|
|
1302 return make_int (window_displayed_height (decode_window (window)));
|
|
|
1303 }
|
|
|
1304
|
|
20
|
1305 DEFUN ("window-pixel-height", Fwindow_pixel_height, 0, 1, 0, /*
|
|
0
|
1306 Return the height of WINDOW in pixels. Defaults to current window.
|
|
|
1307 This includes the window's modeline and horizontal scrollbar (if any).
|
|
20
|
1308 */
|
|
|
1309 (window))
|
|
0
|
1310 {
|
|
173
|
1311 return make_int (decode_window (window)->pixel_height);
|
|
0
|
1312 }
|
|
|
1313
|
|
288
|
1314 DEFUN ("window-text-area-pixel-height",
|
|
|
1315 Fwindow_text_area_pixel_height, 0, 1, 0, /*
|
|
276
|
1316 Return the height in pixels of the text-displaying portion of WINDOW.
|
|
|
1317 Unlike `window-pixel-height', the space occupied by the modeline and
|
|
|
1318 horizontal scrollbar, if any, is not counted.
|
|
263
|
1319 */
|
|
|
1320 (window))
|
|
|
1321 {
|
|
276
|
1322 struct window *w = decode_window (window);
|
|
|
1323
|
|
|
1324 return make_int (WINDOW_TEXT_HEIGHT (w));
|
|
263
|
1325 }
|
|
|
1326
|
|
288
|
1327 DEFUN ("window-displayed-text-pixel-height",
|
|
|
1328 Fwindow_displayed_text_pixel_height, 0, 2, 0, /*
|
|
|
1329 Return the height in pixels of the text displayed in WINDOW.
|
|
|
1330 Unlike `window-text-area-pixel-height', any blank space below the
|
|
|
1331 end of the buffer is not included. If optional argument NOCLIPPED
|
|
|
1332 is non-nil, do not include space occupied by clipped lines.
|
|
|
1333 */
|
|
|
1334 (window, noclipped))
|
|
|
1335 {
|
|
|
1336 struct window *w;
|
|
|
1337 Bufpos start, eobuf;
|
|
|
1338 int defheight;
|
|
|
1339 int hlimit, height, prev_height = -1;
|
|
|
1340 int line;
|
|
|
1341 int elt, nelt, i;
|
|
|
1342 int needed;
|
|
|
1343 line_start_cache_dynarr *cache;
|
|
|
1344
|
|
|
1345 if (NILP (window))
|
|
|
1346 window = Fselected_window (Qnil);
|
|
|
1347
|
|
371
|
1348 CHECK_WINDOW (window);
|
|
288
|
1349 w = XWINDOW (window);
|
|
|
1350
|
|
|
1351 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
1352 hlimit = WINDOW_TEXT_HEIGHT (w);
|
|
|
1353 eobuf = BUF_ZV (XBUFFER (w->buffer));
|
|
|
1354
|
|
|
1355 default_face_height_and_width (window, &defheight, NULL);
|
|
|
1356
|
|
|
1357 /* guess lines needed in line start cache + a few extra */
|
|
|
1358 needed = (hlimit + defheight-1) / defheight + 3;
|
|
|
1359
|
|
|
1360 while (1) {
|
|
|
1361 elt = point_in_line_start_cache (w, start, needed);
|
|
|
1362 assert (elt >= 0); /* in the cache */
|
|
|
1363
|
|
|
1364 cache = w->line_start_cache;
|
|
|
1365 nelt = Dynarr_length (cache);
|
|
|
1366
|
|
|
1367 height = 0;
|
|
|
1368 for (i = elt; i < nelt; i++) {
|
|
|
1369 line = Dynarr_atp (cache, i)->height;
|
|
|
1370
|
|
|
1371 if (height + line > hlimit)
|
|
|
1372 return make_int (!NILP (noclipped) ? height : hlimit);
|
|
|
1373
|
|
|
1374 height += line;
|
|
|
1375
|
|
|
1376 if (height == hlimit || Dynarr_atp (cache, i)->end >= eobuf)
|
|
|
1377 return make_int (height);
|
|
|
1378 }
|
|
|
1379
|
|
|
1380 /* get here => need more cache lines. try again. */
|
|
|
1381 assert(height > prev_height); /* progress? */
|
|
|
1382 prev_height = height;
|
|
|
1383
|
|
|
1384 needed += ((hlimit - height)*(nelt - elt) + height-1)/height + 3;
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 RETURN_NOT_REACHED(make_int (0)) /* shut up compiler */
|
|
|
1388 }
|
|
|
1389
|
|
20
|
1390 DEFUN ("window-width", Fwindow_width, 0, 1, 0, /*
|
|
0
|
1391 Return the number of display columns in WINDOW.
|
|
|
1392 This is the width that is usable columns available for text in WINDOW.
|
|
20
|
1393 */
|
|
|
1394 (window))
|
|
0
|
1395 {
|
|
173
|
1396 return make_int (window_char_width (decode_window (window), 0));
|
|
0
|
1397 }
|
|
|
1398
|
|
20
|
1399 DEFUN ("window-pixel-width", Fwindow_pixel_width, 0, 1, 0, /*
|
|
0
|
1400 Return the width of WINDOW in pixels. Defaults to current window.
|
|
20
|
1401 */
|
|
|
1402 (window))
|
|
0
|
1403 {
|
|
173
|
1404 return make_int (decode_window (window)->pixel_width);
|
|
0
|
1405 }
|
|
|
1406
|
|
288
|
1407 DEFUN ("window-text-area-pixel-width",
|
|
|
1408 Fwindow_text_area_pixel_width, 0, 1, 0, /*
|
|
276
|
1409 Return the width in pixels of the text-displaying portion of WINDOW.
|
|
|
1410 Unlike `window-pixel-width', the space occupied by the vertical
|
|
380
|
1411 scrollbar or divider, if any, is not counted.
|
|
276
|
1412 */
|
|
|
1413 (window))
|
|
|
1414 {
|
|
|
1415 struct window *w = decode_window (window);
|
|
|
1416
|
|
|
1417 return make_int (WINDOW_TEXT_WIDTH (w));
|
|
|
1418 }
|
|
|
1419
|
|
20
|
1420 DEFUN ("window-hscroll", Fwindow_hscroll, 0, 1, 0, /*
|
|
0
|
1421 Return the number of columns by which WINDOW is scrolled from left margin.
|
|
20
|
1422 */
|
|
|
1423 (window))
|
|
0
|
1424 {
|
|
173
|
1425 return make_int (decode_window (window)->hscroll);
|
|
0
|
1426 }
|
|
|
1427
|
|
267
|
1428 #ifdef MODELINE_IS_SCROLLABLE
|
|
257
|
1429 DEFUN ("modeline-hscroll", Fmodeline_hscroll, 0, 1, 0, /*
|
|
272
|
1430 Return the number of columns by which WINDOW's modeline is scrolled from
|
|
257
|
1431 left margin. If the window has no modeline, return nil.
|
|
|
1432 */
|
|
|
1433 (window))
|
|
|
1434 {
|
|
280
|
1435 struct window *w = decode_window (window);
|
|
|
1436
|
|
257
|
1437 return (WINDOW_HAS_MODELINE_P (w)) ? make_int (w->modeline_hscroll) : Qnil;
|
|
|
1438 }
|
|
272
|
1439
|
|
257
|
1440 DEFUN ("set-modeline-hscroll", Fset_modeline_hscroll, 2, 2, 0, /*
|
|
|
1441 Set number of columns WINDOW's modeline is scrolled from left margin to NCOL.
|
|
|
1442 NCOL should be zero or positive. If NCOL is negative, it will be forced to 0.
|
|
|
1443 If the window has no modeline, do nothing and return nil.
|
|
|
1444 */
|
|
|
1445 (window, ncol))
|
|
|
1446 {
|
|
280
|
1447 struct window *w = decode_window (window);
|
|
|
1448
|
|
257
|
1449 if (WINDOW_HAS_MODELINE_P (w))
|
|
|
1450 {
|
|
280
|
1451 int ncols;
|
|
257
|
1452 CHECK_INT (ncol);
|
|
|
1453 ncols = XINT (ncol);
|
|
|
1454 if (ncols < 0) ncols = 0;
|
|
|
1455 if (w->modeline_hscroll != ncols)
|
|
|
1456 MARK_MODELINE_CHANGED;
|
|
|
1457 w->modeline_hscroll = ncols;
|
|
|
1458 return ncol;
|
|
|
1459 }
|
|
|
1460 return Qnil;
|
|
|
1461 }
|
|
272
|
1462 #endif /* MODELINE_IS_SCROLLABLE */
|
|
|
1463
|
|
|
1464 DEFUN ("set-window-hscroll", Fset_window_hscroll, 2, 2, 0, /*
|
|
|
1465 Set number of columns WINDOW is scrolled from left margin to NCOL.
|
|
|
1466 NCOL should be zero or positive.
|
|
|
1467 */
|
|
|
1468 (window, ncol))
|
|
|
1469 {
|
|
|
1470 struct window *w;
|
|
|
1471 int ncols;
|
|
|
1472
|
|
|
1473 CHECK_INT (ncol);
|
|
|
1474 ncols = XINT (ncol);
|
|
|
1475 if (ncols < 0) ncols = 0;
|
|
|
1476 w = decode_window (window);
|
|
|
1477 if (w->hscroll != ncols)
|
|
|
1478 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */
|
|
|
1479 w->hscroll = ncols;
|
|
|
1480 return ncol;
|
|
|
1481 }
|
|
257
|
1482
|
|
276
|
1483 #if 0 /* bogus FSF crock */
|
|
0
|
1484
|
|
149
|
1485 xxDEFUN ("window-redisplay-end-trigger",
|
|
|
1486 Fwindow_redisplay_end_trigger, 0, 1, 0, /*
|
|
0
|
1487 Return WINDOW's redisplay end trigger value.
|
|
|
1488 See `set-window-redisplay-end-trigger' for more information.
|
|
102
|
1489 */
|
|
|
1490 (window))
|
|
0
|
1491 {
|
|
|
1492 return decode_window (window)->redisplay_end_trigger;
|
|
|
1493 }
|
|
|
1494
|
|
149
|
1495 xxDEFUN ("set-window-redisplay-end-trigger",
|
|
|
1496 Fset_window_redisplay_end_trigger, 2, 2, 0, /*
|
|
0
|
1497 Set WINDOW's redisplay end trigger value to VALUE.
|
|
|
1498 VALUE should be a buffer position (typically a marker) or nil.
|
|
|
1499 If it is a buffer position, then if redisplay in WINDOW reaches a position
|
|
|
1500 beyond VALUE, the functions in `redisplay-end-trigger-functions' are called
|
|
|
1501 with two arguments: WINDOW, and the end trigger value.
|
|
|
1502 Afterwards the end-trigger value is reset to nil.
|
|
185
|
1503 */
|
|
102
|
1504 (window, value))
|
|
0
|
1505 {
|
|
102
|
1506 return (decode_window (window)->redisplay_end_trigger = value);
|
|
0
|
1507 }
|
|
|
1508
|
|
|
1509 #endif /* 0 */
|
|
|
1510
|
|
20
|
1511 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, 0, 1, 0, /*
|
|
0
|
1512 Return a list of the pixel edge coordinates of WINDOW.
|
|
|
1513 \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at top left corner of frame.
|
|
|
1514 The frame toolbars and menubars are considered to be outside of this area.
|
|
20
|
1515 */
|
|
|
1516 (window))
|
|
0
|
1517 {
|
|
|
1518 struct window *w = decode_window (window);
|
|
|
1519 struct frame *f = XFRAME (w->frame);
|
|
149
|
1520
|
|
|
1521 int left = w->pixel_left - FRAME_LEFT_BORDER_END (f);
|
|
|
1522 int top = w->pixel_top - FRAME_TOP_BORDER_END (f);
|
|
0
|
1523
|
|
|
1524 return list4 (make_int (left),
|
|
|
1525 make_int (top),
|
|
|
1526 make_int (left + w->pixel_width),
|
|
|
1527 make_int (top + w->pixel_height));
|
|
|
1528 }
|
|
|
1529
|
|
288
|
1530 DEFUN ("window-text-area-pixel-edges",
|
|
|
1531 Fwindow_text_area_pixel_edges, 0, 1, 0, /*
|
|
276
|
1532 Return a list of the pixel edge coordinates of the text area of WINDOW.
|
|
|
1533 Returns the list \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at the
|
|
|
1534 top left corner of the window.
|
|
|
1535 */
|
|
|
1536 (window))
|
|
|
1537 {
|
|
|
1538 struct window *w = decode_window (window);
|
|
|
1539
|
|
|
1540 int left = window_left_gutter_width (w, /* modeline = */ 0);
|
|
|
1541 int top = window_top_gutter_height (w);
|
|
|
1542 int right = WINDOW_WIDTH (w) - window_right_gutter_width (w, 0);
|
|
|
1543 int bottom = WINDOW_HEIGHT (w) - window_bottom_gutter_height (w);
|
|
|
1544
|
|
|
1545 return list4 (make_int (left),
|
|
|
1546 make_int (top),
|
|
|
1547 make_int (right),
|
|
|
1548 make_int (bottom));
|
|
|
1549 }
|
|
|
1550
|
|
20
|
1551 DEFUN ("window-point", Fwindow_point, 0, 1, 0, /*
|
|
0
|
1552 Return current value of point in WINDOW.
|
|
371
|
1553 For a nonselected window, this is the value point would have
|
|
0
|
1554 if that window were selected.
|
|
|
1555
|
|
|
1556 Note that, when WINDOW is the selected window and its buffer
|
|
|
1557 is also currently selected, the value returned is the same as (point).
|
|
|
1558 It would be more strictly correct to return the `top-level' value
|
|
|
1559 of point, outside of any save-excursion forms.
|
|
|
1560 But that is hard to define.
|
|
20
|
1561 */
|
|
|
1562 (window))
|
|
0
|
1563 {
|
|
|
1564 struct window *w = decode_window (window);
|
|
|
1565
|
|
|
1566 /* The special check for current buffer is necessary for this
|
|
|
1567 function to work as defined when called within an excursion. */
|
|
|
1568 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device))
|
|
|
1569 && current_buffer == XBUFFER (w->buffer))
|
|
|
1570 return Fpoint (Qnil);
|
|
|
1571 return Fmarker_position (w->pointm[CURRENT_DISP]);
|
|
|
1572 }
|
|
|
1573
|
|
20
|
1574 DEFUN ("window-start", Fwindow_start, 0, 1, 0, /*
|
|
0
|
1575 Return position at which display currently starts in WINDOW.
|
|
|
1576 This is updated by redisplay or by calling `set-window-start'.
|
|
20
|
1577 */
|
|
|
1578 (window))
|
|
0
|
1579 {
|
|
|
1580 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]);
|
|
|
1581 }
|
|
|
1582
|
|
20
|
1583 DEFUN ("window-end", Fwindow_end, 0, 2, 0, /*
|
|
0
|
1584 Return position at which display currently ends in WINDOW.
|
|
|
1585 This is updated by redisplay, when it runs to completion.
|
|
|
1586 Simply changing the buffer text or setting `window-start'
|
|
|
1587 does not update this value.
|
|
|
1588 If GUARANTEE is non-nil, then the return value is guaranteed to be
|
|
|
1589 the value of window-end at the end of the next full redisplay assuming
|
|
|
1590 nothing else changes in the meantime. This function is potentially much
|
|
|
1591 slower with this flag set.
|
|
20
|
1592 */
|
|
|
1593 (window, guarantee))
|
|
0
|
1594 {
|
|
|
1595 struct window *w = decode_window (window);
|
|
|
1596
|
|
|
1597 if (NILP (guarantee))
|
|
|
1598 {
|
|
280
|
1599 Lisp_Object buf;
|
|
|
1600 buf = w->buffer;
|
|
0
|
1601 CHECK_BUFFER (buf);
|
|
272
|
1602 return make_int (BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]);
|
|
0
|
1603 }
|
|
|
1604 else
|
|
|
1605 {
|
|
|
1606 Bufpos startp = marker_position (w->start[CURRENT_DISP]);
|
|
173
|
1607 return make_int (end_of_last_line (w, startp));
|
|
0
|
1608 }
|
|
|
1609 }
|
|
|
1610
|
|
20
|
1611 DEFUN ("set-window-point", Fset_window_point, 2, 2, 0, /*
|
|
0
|
1612 Make point value in WINDOW be at position POS in WINDOW's buffer.
|
|
20
|
1613 */
|
|
|
1614 (window, pos))
|
|
0
|
1615 {
|
|
|
1616 struct window *w = decode_window (window);
|
|
|
1617
|
|
|
1618 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1619 if (w == XWINDOW (Fselected_window (Qnil)))
|
|
223
|
1620 Fgoto_char (pos, Qnil);
|
|
0
|
1621 else
|
|
|
1622 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer);
|
|
|
1623
|
|
|
1624 MARK_POINT_CHANGED;
|
|
|
1625 return pos;
|
|
|
1626 }
|
|
|
1627
|
|
20
|
1628 DEFUN ("set-window-start", Fset_window_start, 2, 3, 0, /*
|
|
0
|
1629 Make display in WINDOW start at position POS in WINDOW's buffer.
|
|
|
1630 Optional third arg NOFORCE non-nil inhibits next redisplay
|
|
|
1631 from overriding motion of point in order to display at this exact start.
|
|
20
|
1632 */
|
|
|
1633 (window, pos, noforce))
|
|
0
|
1634 {
|
|
|
1635 struct window *w = decode_window (window);
|
|
|
1636
|
|
|
1637 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1638 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer);
|
|
|
1639 /* this is not right, but much easier than doing what is right. */
|
|
373
|
1640 /* w->start_at_line_beg = 0; */
|
|
|
1641 /* WTF is the above supposed to mean? GE */
|
|
375
|
1642 w->start_at_line_beg = beginning_of_line_p (XBUFFER (w->buffer),
|
|
|
1643 marker_position (w->start[CURRENT_DISP]));
|
|
0
|
1644 if (NILP (noforce))
|
|
|
1645 w->force_start = 1;
|
|
|
1646 w->redo_modeline = 1;
|
|
|
1647 SET_LAST_MODIFIED (w, 0);
|
|
|
1648 SET_LAST_FACECHANGE (w);
|
|
|
1649
|
|
|
1650 MARK_WINDOWS_CHANGED (w);
|
|
|
1651
|
|
|
1652 return pos;
|
|
|
1653 }
|
|
|
1654
|
|
20
|
1655 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /*
|
|
0
|
1656 Return WINDOW's dedicated object, usually t or nil.
|
|
|
1657 See also `set-window-dedicated-p'.
|
|
20
|
1658 */
|
|
|
1659 (window))
|
|
0
|
1660 {
|
|
|
1661 return decode_window (window)->dedicated;
|
|
|
1662 }
|
|
|
1663
|
|
20
|
1664 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /*
|
|
0
|
1665 Control whether WINDOW is dedicated to the buffer it displays.
|
|
|
1666 If it is dedicated, Emacs will not automatically change
|
|
|
1667 which buffer appears in it.
|
|
|
1668 The second argument is the new value for the dedication flag;
|
|
|
1669 non-nil means yes.
|
|
20
|
1670 */
|
|
|
1671 (window, arg))
|
|
0
|
1672 {
|
|
272
|
1673 struct window *w = decode_window (window);
|
|
0
|
1674
|
|
149
|
1675 w->dedicated = NILP (arg) ? Qnil : Qt;
|
|
0
|
1676
|
|
|
1677 return w->dedicated;
|
|
|
1678 }
|
|
|
1679
|
|
|
1680 /* FSFmacs has window-display-table here. We have display table as a
|
|
|
1681 specifier. */
|
|
|
1682
|
|
|
1683
|
|
|
1684 /* Record info on buffer window w is displaying
|
|
|
1685 when it is about to cease to display that buffer. */
|
|
|
1686 static void
|
|
|
1687 unshow_buffer (struct window *w)
|
|
|
1688 {
|
|
|
1689 Lisp_Object buf = w->buffer;
|
|
|
1690
|
|
|
1691 if (XBUFFER (buf) != XMARKER (w->pointm[CURRENT_DISP])->buffer)
|
|
|
1692 abort ();
|
|
|
1693
|
|
|
1694 /* FSF disables this check, so I'll do it too. I hope it won't
|
|
|
1695 break things. --ben */
|
|
|
1696 #if 0
|
|
|
1697 if (w == XWINDOW (Fselected_window (Qnil))
|
|
|
1698 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
|
1699 /* Do this except when the selected window's buffer
|
|
|
1700 is being removed from some other window. */
|
|
|
1701 #endif
|
|
|
1702 /* last_window_start records the start position that this buffer
|
|
|
1703 had in the last window to be disconnected from it.
|
|
|
1704 Now that this statement is unconditional,
|
|
|
1705 it is possible for the buffer to be displayed in the
|
|
|
1706 selected window, while last_window_start reflects another
|
|
|
1707 window which was recently showing the same buffer.
|
|
|
1708 Some people might say that might be a good thing. Let's see. */
|
|
|
1709 XBUFFER (buf)->last_window_start =
|
|
|
1710 marker_position (w->start[CURRENT_DISP]);
|
|
|
1711
|
|
|
1712 /* Point in the selected window's buffer
|
|
|
1713 is actually stored in that buffer, and the window's pointm isn't used.
|
|
|
1714 So don't clobber point in that buffer. */
|
|
|
1715 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
|
1716 {
|
|
|
1717 struct buffer *b= XBUFFER (buf);
|
|
|
1718 BUF_SET_PT (b, bufpos_clip_to_bounds (BUF_BEGV (b),
|
|
|
1719 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
1720 BUF_ZV (b)));
|
|
|
1721 }
|
|
|
1722 }
|
|
|
1723
|
|
|
1724 /* Put REPLACEMENT into the window structure in place of OLD. */
|
|
|
1725 static void
|
|
|
1726 replace_window (Lisp_Object old, Lisp_Object replacement)
|
|
|
1727 {
|
|
|
1728 Lisp_Object tem;
|
|
|
1729 struct window *o = XWINDOW (old), *p = XWINDOW (replacement);
|
|
|
1730
|
|
|
1731 /* If OLD is its frame's root_window, then replacement is the new
|
|
|
1732 root_window for that frame. */
|
|
|
1733
|
|
|
1734 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame))))
|
|
|
1735 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement;
|
|
|
1736
|
|
|
1737 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
1738 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
1739 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
1740 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
1741
|
|
|
1742 p->next = tem = o->next;
|
|
|
1743 if (!NILP (tem))
|
|
|
1744 XWINDOW (tem)->prev = replacement;
|
|
|
1745
|
|
|
1746 p->prev = tem = o->prev;
|
|
|
1747 if (!NILP (tem))
|
|
|
1748 XWINDOW (tem)->next = replacement;
|
|
|
1749
|
|
|
1750 p->parent = tem = o->parent;
|
|
|
1751 if (!NILP (tem))
|
|
|
1752 {
|
|
|
1753 if (EQ (XWINDOW (tem)->vchild, old))
|
|
|
1754 XWINDOW (tem)->vchild = replacement;
|
|
|
1755 if (EQ (XWINDOW (tem)->hchild, old))
|
|
|
1756 XWINDOW (tem)->hchild = replacement;
|
|
|
1757 }
|
|
|
1758
|
|
|
1759 /* #### Here, if replacement is a vertical combination
|
|
|
1760 and so is its new parent, we should make replacement's
|
|
|
1761 children be children of that parent instead. */
|
|
|
1762 }
|
|
|
1763
|
|
|
1764 /* we're deleting W; set the structure of W to indicate this. */
|
|
|
1765
|
|
|
1766 static void
|
|
|
1767 mark_window_as_deleted (struct window *w)
|
|
|
1768 {
|
|
|
1769 /* In the loop
|
|
|
1770 (while t (split-window) (delete-window))
|
|
|
1771 we end up with a tree of deleted windows which are all connected
|
|
|
1772 through the `next' slot. This might not seem so bad, as they're
|
|
|
1773 deleted, and will presumably be GCed - but if even *one* of those
|
|
|
1774 windows is still being pointed to, by the user, or by a window
|
|
|
1775 configuration, then *all* of those windows stick around.
|
|
|
1776
|
|
|
1777 Since the window-configuration code doesn't need any of the
|
|
|
1778 pointers to other windows (they are all recreated from the
|
|
|
1779 window-config data), we set them all to nil so that we
|
|
|
1780 are able to collect more actual garbage.
|
|
|
1781 */
|
|
|
1782 w->next = Qnil;
|
|
|
1783 w->prev = Qnil;
|
|
|
1784 w->hchild = Qnil;
|
|
|
1785 w->vchild = Qnil;
|
|
|
1786 w->parent = Qnil;
|
|
|
1787
|
|
|
1788 w->dead = 1;
|
|
|
1789
|
|
|
1790 /* Free the extra data structures attached to windows immediately so
|
|
|
1791 they don't sit around consuming excess space. They will be
|
|
|
1792 reinitialized by the window-configuration code as necessary. */
|
|
|
1793 finalize_window ((void *) w, 0);
|
|
|
1794 }
|
|
|
1795
|
|
20
|
1796 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /*
|
|
0
|
1797 Remove WINDOW from the display. Default is selected window.
|
|
|
1798 If window is the only one on the frame, the frame is destroyed.
|
|
|
1799 Normally, you cannot delete the last non-minibuffer-only frame (you must
|
|
|
1800 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional
|
|
|
1801 second argument FORCE is non-nil, you can delete the last frame. (This
|
|
|
1802 will automatically call `save-buffers-kill-emacs'.)
|
|
20
|
1803 */
|
|
|
1804 (window, force))
|
|
0
|
1805 {
|
|
|
1806 /* This function can GC if this is the only window in the frame */
|
|
|
1807 struct window *w;
|
|
|
1808 Lisp_Object parent;
|
|
|
1809 struct window *par;
|
|
|
1810 Lisp_Object frame;
|
|
|
1811 struct frame *f;
|
|
|
1812 struct device *d;
|
|
|
1813
|
|
|
1814 /* Note: this function is called by other C code on non-leaf
|
|
|
1815 windows. */
|
|
|
1816
|
|
|
1817 /* Do the equivalent of decode_window() but don't error out on
|
|
|
1818 deleted window; it's OK to delete an already-deleted window. */
|
|
|
1819 if (NILP (window))
|
|
|
1820 window = Fselected_window (Qnil);
|
|
|
1821 else
|
|
|
1822 CHECK_WINDOW (window);
|
|
|
1823 w = XWINDOW (window);
|
|
|
1824
|
|
|
1825 /* It's okay to delete an already-deleted window. */
|
|
|
1826 if (! WINDOW_LIVE_P (w))
|
|
|
1827 return Qnil;
|
|
|
1828
|
|
|
1829 frame = WINDOW_FRAME (w);
|
|
|
1830 f = XFRAME (frame);
|
|
|
1831 d = XDEVICE (FRAME_DEVICE (f));
|
|
|
1832
|
|
|
1833 if (TOP_LEVEL_WINDOW_P (w))
|
|
|
1834 {
|
|
|
1835 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d))))
|
|
|
1836 /* this frame isn't fully initialized yet; don't blow up. */
|
|
|
1837 return Qnil;
|
|
|
1838
|
|
|
1839 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
1840 error ("Attempt to delete the minibuffer window");
|
|
|
1841
|
|
|
1842 /* It has been suggested that it's a good thing for C-x 0 to have this
|
|
|
1843 behavior, but not such a good idea for #'delete-window to have it.
|
|
|
1844 Maybe C-x 0 should be bound to something else, or maybe frame
|
|
|
1845 deletion should only happen when this is called interactively.
|
|
|
1846 */
|
|
|
1847 delete_frame_internal (f, !NILP (force), 0, 0);
|
|
|
1848 return Qnil;
|
|
|
1849 }
|
|
|
1850
|
|
|
1851 /* At this point, we know the window has a parent. */
|
|
|
1852 parent = w->parent;
|
|
|
1853 par = XWINDOW (parent);
|
|
|
1854
|
|
|
1855 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
1856
|
|
|
1857 /* Are we trying to delete any frame's selected window?
|
|
|
1858 Note that we could be dealing with a non-leaf window
|
|
|
1859 where the selected window is one of our children.
|
|
|
1860 So, we check by scanning all the ancestors of the
|
|
|
1861 frame's selected window and comparing each one with
|
|
|
1862 WINDOW. */
|
|
|
1863 {
|
|
|
1864 Lisp_Object pwindow;
|
|
185
|
1865
|
|
0
|
1866 pwindow = FRAME_SELECTED_WINDOW (f);
|
|
185
|
1867
|
|
0
|
1868 while (!NILP (pwindow))
|
|
|
1869 {
|
|
|
1870 if (EQ (window, pwindow))
|
|
|
1871 break;
|
|
|
1872 pwindow = XWINDOW (pwindow)->parent;
|
|
|
1873 }
|
|
|
1874
|
|
|
1875 if (EQ (window, pwindow))
|
|
|
1876 {
|
|
|
1877 /* OK, we found it. */
|
|
|
1878 Lisp_Object alternative;
|
|
|
1879 alternative = Fnext_window (window, Qlambda, Qnil, Qnil);
|
|
185
|
1880
|
|
0
|
1881 /* If we're about to delete the selected window on the
|
|
|
1882 selected frame, then we should use Fselect_window to select
|
|
|
1883 the new window. On the other hand, if we're about to
|
|
|
1884 delete the selected window on any other frame, we shouldn't do
|
|
|
1885 anything but set the frame's selected_window slot. */
|
|
|
1886 if (EQ (frame, Fselected_frame (Qnil)))
|
|
282
|
1887 Fselect_window (alternative, Qnil);
|
|
0
|
1888 else
|
|
|
1889 set_frame_selected_window (f, alternative);
|
|
|
1890 }
|
|
|
1891 }
|
|
|
1892
|
|
|
1893 /* w->buffer is nil in a non-leaf window; in this case,
|
|
|
1894 get rid of the markers we maintain that point into that buffer. */
|
|
|
1895 if (!NILP (w->buffer))
|
|
|
1896 {
|
|
|
1897 unshow_buffer (w);
|
|
|
1898 unchain_marker (w->pointm[CURRENT_DISP]);
|
|
|
1899 unchain_marker (w->pointm[DESIRED_DISP]);
|
|
|
1900 unchain_marker (w->pointm[CMOTION_DISP]);
|
|
|
1901 unchain_marker (w->start[CURRENT_DISP]);
|
|
|
1902 unchain_marker (w->start[DESIRED_DISP]);
|
|
|
1903 unchain_marker (w->start[CMOTION_DISP]);
|
|
|
1904 unchain_marker (w->sb_point);
|
|
|
1905 /* This breaks set-window-configuration if windows in the saved
|
|
|
1906 configuration get deleted and multiple frames are in use. */
|
|
|
1907 /* w->buffer = Qnil; */
|
|
|
1908 }
|
|
185
|
1909
|
|
0
|
1910 /* close up the hole in the sibling list */
|
|
|
1911 if (!NILP (w->next))
|
|
|
1912 XWINDOW (w->next)->prev = w->prev;
|
|
|
1913 if (!NILP (w->prev))
|
|
|
1914 XWINDOW (w->prev)->next = w->next;
|
|
|
1915 if (EQ (window, par->hchild))
|
|
|
1916 par->hchild = w->next;
|
|
|
1917 if (EQ (window, par->vchild))
|
|
|
1918 par->vchild = w->next;
|
|
|
1919
|
|
|
1920 /* Find one of our siblings to give our space to. */
|
|
|
1921 {
|
|
|
1922 Lisp_Object sib = w->prev;
|
|
|
1923 if (NILP (sib))
|
|
|
1924 {
|
|
|
1925 /* If w gives its space to its next sibling, that sibling needs
|
|
|
1926 to have its top/left side pulled back to where w's is.
|
|
|
1927 set_window_{height,width} will re-position the sibling's
|
|
|
1928 children. */
|
|
|
1929 sib = w->next;
|
|
|
1930 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w);
|
|
|
1931 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w);
|
|
|
1932 }
|
|
185
|
1933
|
|
0
|
1934 /* Stretch that sibling. */
|
|
|
1935 if (!NILP (par->vchild))
|
|
|
1936 set_window_pixheight
|
|
|
1937 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1);
|
|
|
1938 if (!NILP (par->hchild))
|
|
|
1939 set_window_pixwidth
|
|
|
1940 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1);
|
|
|
1941 }
|
|
|
1942
|
|
|
1943 /* If parent now has only one child,
|
|
|
1944 put the child into the parent's place. */
|
|
|
1945 {
|
|
|
1946 Lisp_Object parchild = par->hchild;
|
|
|
1947 if (NILP (parchild))
|
|
|
1948 parchild = par->vchild;
|
|
|
1949 if (NILP (XWINDOW (parchild)->next))
|
|
|
1950 {
|
|
|
1951 replace_window (parent, parchild);
|
|
|
1952 mark_window_as_deleted (XWINDOW (parent));
|
|
|
1953 }
|
|
|
1954 }
|
|
|
1955
|
|
|
1956 /* Since we may be deleting combination windows, we must make sure that
|
|
|
1957 not only W but all its children have been marked as deleted. */
|
|
|
1958 if (!NILP (w->hchild))
|
|
|
1959 delete_all_subwindows (XWINDOW (w->hchild));
|
|
|
1960 else if (!NILP (w->vchild))
|
|
|
1961 delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
1962
|
|
|
1963 mark_window_as_deleted (w);
|
|
|
1964
|
|
|
1965 f->mirror_dirty = 1;
|
|
|
1966 return Qnil;
|
|
|
1967 }
|
|
|
1968
|
|
|
1969
|
|
20
|
1970 DEFUN ("next-window", Fnext_window, 0, 4, 0, /*
|
|
371
|
1971 Return next window after WINDOW in canonical ordering of windows.
|
|
0
|
1972 If omitted, WINDOW defaults to the selected window.
|
|
|
1973
|
|
|
1974 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
1975 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
1976 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
1977 minibuffer even if it is active.
|
|
|
1978
|
|
|
1979 Several frames may share a single minibuffer; if the minibuffer
|
|
|
1980 counts, all windows on all frames that share that minibuffer count
|
|
|
1981 too. Therefore, `next-window' can be used to iterate through the
|
|
|
1982 set of windows even when the minibuffer is on another frame. If the
|
|
|
1983 minibuffer does not count, only windows from WINDOW's frame count.
|
|
|
1984
|
|
|
1985 Optional third arg ALL-FRAMES t means include windows on all frames.
|
|
|
1986 ALL-FRAMES nil or omitted means cycle within the frames as specified
|
|
|
1987 above. ALL-FRAMES = `visible' means include windows on all visible frames.
|
|
|
1988 ALL-FRAMES = 0 means include windows on all visible and iconified frames.
|
|
|
1989 If ALL-FRAMES is a frame, restrict search to windows on that frame.
|
|
|
1990 Anything else means restrict to WINDOW's frame.
|
|
|
1991
|
|
371
|
1992 Optional fourth argument CONSOLE controls which consoles or devices the
|
|
0
|
1993 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
1994 on that console. If CONSOLE is a device, return windows only on that
|
|
|
1995 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
1996 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
1997 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
1998 on WINDOW's console. Otherwise, all windows are considered.
|
|
|
1999
|
|
|
2000 If you use consistent values for MINIBUF, ALL-FRAMES, and CONSOLE, you
|
|
|
2001 can use `next-window' to iterate through the entire cycle of acceptable
|
|
|
2002 windows, eventually ending up back at the window you started with.
|
|
|
2003 `previous-window' traverses the same cycle, in the reverse order.
|
|
20
|
2004 */
|
|
70
|
2005 (window, minibuf, all_frames, console))
|
|
0
|
2006 {
|
|
|
2007 Lisp_Object tem;
|
|
|
2008 Lisp_Object start_window;
|
|
|
2009
|
|
|
2010 if (NILP (window))
|
|
|
2011 window = Fselected_window (Qnil);
|
|
|
2012 else
|
|
|
2013 CHECK_LIVE_WINDOW (window);
|
|
|
2014
|
|
|
2015 start_window = window;
|
|
|
2016
|
|
|
2017 /* minibuf == nil may or may not include minibuffers.
|
|
|
2018 Decide if it does. */
|
|
|
2019 if (NILP (minibuf))
|
|
|
2020 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
2021 else if (! EQ (minibuf, Qt))
|
|
|
2022 minibuf = Qlambda;
|
|
371
|
2023 /* Now minibuf can be t => count all minibuffer windows,
|
|
|
2024 lambda => count none of them,
|
|
0
|
2025 or a specific minibuffer window (the active one) to count. */
|
|
|
2026
|
|
|
2027 /* all_frames == nil doesn't specify which frames to include. */
|
|
|
2028 if (NILP (all_frames))
|
|
|
2029 all_frames = (! EQ (minibuf, Qlambda)
|
|
|
2030 ? (FRAME_MINIBUF_WINDOW
|
|
|
2031 (XFRAME
|
|
|
2032 (WINDOW_FRAME
|
|
|
2033 (XWINDOW (window)))))
|
|
|
2034 : Qnil);
|
|
|
2035 else if (EQ (all_frames, Qvisible))
|
|
|
2036 ;
|
|
|
2037 else if (ZEROP (all_frames))
|
|
|
2038 ;
|
|
|
2039 else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window)))
|
|
|
2040 /* If all_frames is a frame and window arg isn't on that frame, just
|
|
|
2041 return the first window on the frame. */
|
|
|
2042 return frame_first_window (XFRAME (all_frames));
|
|
|
2043 else if (! EQ (all_frames, Qt))
|
|
|
2044 all_frames = Qnil;
|
|
371
|
2045 /* Now all_frames is t meaning search all frames,
|
|
|
2046 nil meaning search just current frame,
|
|
|
2047 visible meaning search just visible frames,
|
|
|
2048 0 meaning search visible and iconified frames,
|
|
|
2049 or a window, meaning search the frame that window belongs to. */
|
|
0
|
2050
|
|
|
2051 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2052 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2053 do
|
|
|
2054 {
|
|
|
2055 /* Find a window that actually has a next one. This loop
|
|
|
2056 climbs up the tree. */
|
|
|
2057 while (tem = XWINDOW (window)->next, NILP (tem))
|
|
|
2058 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2059 window = tem;
|
|
|
2060 else /* window must be minibuffer window now */
|
|
|
2061 {
|
|
|
2062 /* We've reached the end of this frame.
|
|
|
2063 Which other frames are acceptable? */
|
|
|
2064 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2065
|
|
|
2066 if (! NILP (all_frames))
|
|
|
2067 {
|
|
371
|
2068 Lisp_Object tem1;
|
|
|
2069
|
|
|
2070 tem1 = tem;
|
|
0
|
2071 tem = next_frame (tem, all_frames, console);
|
|
|
2072 /* In the case where the minibuffer is active,
|
|
|
2073 and we include its frame as well as the selected one,
|
|
|
2074 next_frame may get stuck in that frame.
|
|
|
2075 If that happens, go back to the selected frame
|
|
|
2076 so we can complete the cycle. */
|
|
|
2077 if (EQ (tem, tem1))
|
|
|
2078 XSETFRAME (tem, selected_frame ());
|
|
|
2079 }
|
|
|
2080
|
|
|
2081 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2082 break;
|
|
|
2083 }
|
|
|
2084
|
|
|
2085 window = tem;
|
|
|
2086
|
|
|
2087 /* If we're in a combination window, find its first child and
|
|
|
2088 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2089 while (1)
|
|
|
2090 {
|
|
|
2091 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2092 window = XWINDOW (window)->hchild;
|
|
|
2093 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2094 window = XWINDOW (window)->vchild;
|
|
|
2095 else break;
|
|
|
2096 }
|
|
|
2097 }
|
|
371
|
2098 /* "acceptable" is the correct spelling. */
|
|
0
|
2099 /* Which windows are acceptable?
|
|
|
2100 Exit the loop and accept this window if
|
|
|
2101 this isn't a minibuffer window,
|
|
|
2102 or we're accepting all minibuffer windows,
|
|
|
2103 or this is the active minibuffer and we are accepting that one, or
|
|
|
2104 we've come all the way around and we're back at the original window. */
|
|
|
2105 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2106 && ! EQ (minibuf, Qt)
|
|
|
2107 && ! EQ (minibuf, window)
|
|
|
2108 && ! EQ (window, start_window));
|
|
|
2109
|
|
|
2110 return window;
|
|
|
2111 }
|
|
|
2112
|
|
20
|
2113 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /*
|
|
371
|
2114 Return the window preceding WINDOW in canonical ordering of windows.
|
|
0
|
2115 If omitted, WINDOW defaults to the selected window.
|
|
|
2116
|
|
|
2117 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
2118 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
2119 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
2120 minibuffer even if it is active.
|
|
|
2121
|
|
|
2122 Several frames may share a single minibuffer; if the minibuffer
|
|
|
2123 counts, all windows on all frames that share that minibuffer count
|
|
|
2124 too. Therefore, `previous-window' can be used to iterate through
|
|
|
2125 the set of windows even when the minibuffer is on another frame. If
|
|
371
|
2126 the minibuffer does not count, only windows from WINDOW's frame count
|
|
|
2127
|
|
|
2128 If optional third arg ALL-FRAMES t means include windows on all frames.
|
|
0
|
2129 ALL-FRAMES nil or omitted means cycle within the frames as specified
|
|
|
2130 above. ALL-FRAMES = `visible' means include windows on all visible frames.
|
|
|
2131 ALL-FRAMES = 0 means include windows on all visible and iconified frames.
|
|
|
2132 If ALL-FRAMES is a frame, restrict search to windows on that frame.
|
|
|
2133 Anything else means restrict to WINDOW's frame.
|
|
|
2134
|
|
371
|
2135 Optional fourth argument CONSOLE controls which consoles or devices the
|
|
0
|
2136 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2137 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2138 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2139 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2140 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2141 on WINDOW's console. Otherwise, all windows are considered.
|
|
|
2142
|
|
|
2143 If you use consistent values for MINIBUF, ALL-FRAMES, and CONSOLE, you
|
|
|
2144 can use `previous-window' to iterate through the entire cycle of acceptable
|
|
|
2145 windows, eventually ending up back at the window you started with.
|
|
|
2146 `next-window' traverses the same cycle, in the reverse order.
|
|
20
|
2147 */
|
|
70
|
2148 (window, minibuf, all_frames, console))
|
|
0
|
2149 {
|
|
|
2150 Lisp_Object tem;
|
|
|
2151 Lisp_Object start_window;
|
|
|
2152
|
|
|
2153 if (NILP (window))
|
|
|
2154 window = Fselected_window (Qnil);
|
|
|
2155 else
|
|
|
2156 CHECK_LIVE_WINDOW (window);
|
|
|
2157
|
|
|
2158 start_window = window;
|
|
|
2159
|
|
|
2160 /* minibuf == nil may or may not include minibuffers.
|
|
|
2161 Decide if it does. */
|
|
|
2162 if (NILP (minibuf))
|
|
|
2163 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
2164 else if (! EQ (minibuf, Qt))
|
|
|
2165 minibuf = Qlambda;
|
|
371
|
2166 /* Now minibuf can be t => count all minibuffer windows,
|
|
|
2167 lambda => count none of them,
|
|
0
|
2168 or a specific minibuffer window (the active one) to count. */
|
|
|
2169
|
|
|
2170 /* all_frames == nil doesn't specify which frames to include.
|
|
|
2171 Decide which frames it includes. */
|
|
|
2172 if (NILP (all_frames))
|
|
|
2173 all_frames = (! EQ (minibuf, Qlambda)
|
|
|
2174 ? (FRAME_MINIBUF_WINDOW
|
|
|
2175 (XFRAME
|
|
|
2176 (WINDOW_FRAME
|
|
|
2177 (XWINDOW (window)))))
|
|
|
2178 : Qnil);
|
|
|
2179 else if (EQ (all_frames, Qvisible))
|
|
|
2180 ;
|
|
|
2181 else if (ZEROP (all_frames))
|
|
|
2182 ;
|
|
|
2183 else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window)))
|
|
|
2184 /* If all_frames is a frame and window arg isn't on that frame, just
|
|
|
2185 return the first window on the frame. */
|
|
|
2186 return frame_first_window (XFRAME (all_frames));
|
|
|
2187 else if (! EQ (all_frames, Qt))
|
|
|
2188 all_frames = Qnil;
|
|
371
|
2189 /* Now all_frames is t meaning search all frames,
|
|
|
2190 nil meaning search just current frame,
|
|
|
2191 visible meaning search just visible frames,
|
|
|
2192 0 meaning search visible and iconified frames,
|
|
|
2193 or a window, meaning search the frame that window belongs to. */
|
|
0
|
2194
|
|
|
2195 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2196 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2197 do
|
|
|
2198 {
|
|
|
2199 /* Find a window that actually has a next one. This loop
|
|
|
2200 climbs up the tree. */
|
|
|
2201 while (tem = XWINDOW (window)->prev, NILP (tem))
|
|
|
2202 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2203 window = tem;
|
|
|
2204 else /* window must be minibuffer window now */
|
|
|
2205 {
|
|
|
2206 /* We have found the top window on the frame.
|
|
|
2207 Which frames are acceptable? */
|
|
|
2208 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2209
|
|
|
2210 if (! NILP (all_frames))
|
|
371
|
2211 /* It's actually important that we use prev_frame here,
|
|
0
|
2212 rather than next_frame. All the windows acceptable
|
|
|
2213 according to the given parameters should form a ring;
|
|
|
2214 Fnext_window and Fprevious_window should go back and
|
|
|
2215 forth around the ring. If we use next_frame here,
|
|
|
2216 then Fnext_window and Fprevious_window take different
|
|
|
2217 paths through the set of acceptable windows.
|
|
|
2218 window_loop assumes that these `ring' requirement are
|
|
|
2219 met. */
|
|
|
2220 {
|
|
371
|
2221 Lisp_Object tem1;
|
|
|
2222
|
|
|
2223 tem1 = tem;
|
|
|
2224 tem = prev_frame (tem, all_frames, console);
|
|
0
|
2225 /* In the case where the minibuffer is active,
|
|
|
2226 and we include its frame as well as the selected one,
|
|
|
2227 next_frame may get stuck in that frame.
|
|
|
2228 If that happens, go back to the selected frame
|
|
|
2229 so we can complete the cycle. */
|
|
|
2230 if (EQ (tem, tem1))
|
|
|
2231 XSETFRAME (tem, selected_frame ());
|
|
|
2232 }
|
|
|
2233
|
|
|
2234 /* If this frame has a minibuffer, find that window first,
|
|
|
2235 because it is conceptually the last window in that frame. */
|
|
|
2236 if (FRAME_HAS_MINIBUF_P (XFRAME (tem)))
|
|
|
2237 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem));
|
|
|
2238 else
|
|
|
2239 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2240
|
|
|
2241 break;
|
|
|
2242 }
|
|
|
2243
|
|
|
2244 window = tem;
|
|
|
2245
|
|
|
2246 /* If we're in a combination window, find its first child and
|
|
|
2247 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2248 while (1)
|
|
|
2249 {
|
|
|
2250 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2251 window = XWINDOW (window)->hchild;
|
|
|
2252 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2253 window = XWINDOW (window)->vchild;
|
|
|
2254 else break;
|
|
|
2255 while (tem = XWINDOW (window)->next, !NILP (tem))
|
|
|
2256 window = tem;
|
|
|
2257 }
|
|
|
2258 }
|
|
|
2259 /* Which windows are acceptable?
|
|
|
2260 Exit the loop and accept this window if
|
|
|
2261 this isn't a minibuffer window,
|
|
|
2262 or we're accepting all minibuffer windows,
|
|
|
2263 or this is the active minibuffer and we are accepting that one, or
|
|
|
2264 we've come all the way around and we're back at the original window. */
|
|
|
2265 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2266 && ! EQ (minibuf, Qt)
|
|
|
2267 && ! EQ (minibuf, window)
|
|
|
2268 && ! EQ (window, start_window));
|
|
|
2269
|
|
|
2270 return window;
|
|
|
2271 }
|
|
|
2272
|
|
20
|
2273 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /*
|
|
0
|
2274 Return the next window which is vertically after WINDOW.
|
|
20
|
2275 */
|
|
|
2276 (window))
|
|
0
|
2277 {
|
|
|
2278 Lisp_Object root;
|
|
|
2279 struct window *w = decode_window (window);
|
|
|
2280 XSETWINDOW (window, w);
|
|
|
2281
|
|
|
2282 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
2283 return Qnil;
|
|
|
2284
|
|
|
2285 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window))));
|
|
|
2286
|
|
|
2287 if (EQ (window, root))
|
|
|
2288 {
|
|
|
2289 while (1)
|
|
|
2290 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2291 window = XWINDOW (window)->hchild;
|
|
|
2292 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2293 window = XWINDOW (window)->vchild;
|
|
|
2294 else
|
|
|
2295 return window;
|
|
|
2296 }
|
|
|
2297
|
|
|
2298 do
|
|
|
2299 {
|
|
|
2300 if (!NILP (XWINDOW (window)->parent) &&
|
|
|
2301 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild))
|
|
|
2302 {
|
|
|
2303 if (!NILP (XWINDOW (window)->next))
|
|
|
2304 return XWINDOW (window)->next;
|
|
|
2305 else
|
|
|
2306 window = XWINDOW (window)->parent;
|
|
|
2307 }
|
|
|
2308 else
|
|
|
2309 window = XWINDOW (window)->parent;
|
|
|
2310 }
|
|
|
2311 while (!EQ (window, root));
|
|
|
2312
|
|
|
2313 while (1)
|
|
|
2314 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2315 window = XWINDOW (window)->hchild;
|
|
|
2316 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2317 window = XWINDOW (window)->vchild;
|
|
|
2318 else
|
|
|
2319 return window;
|
|
|
2320 }
|
|
|
2321
|
|
20
|
2322 DEFUN ("other-window", Fother_window, 1, 3, "p", /*
|
|
0
|
2323 Select the N'th different window on this frame.
|
|
|
2324 All windows on current frame are arranged in a cyclic order.
|
|
|
2325 This command selects the window N steps away in that order.
|
|
|
2326 A negative N moves in the opposite order.
|
|
|
2327
|
|
|
2328 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2329 If FRAME is 0, search all visible and iconified frames.
|
|
|
2330 If FRAME is t, search all frames.
|
|
|
2331 If FRAME is nil, search only the selected frame.
|
|
|
2332 If FRAME is a frame, search only that frame.
|
|
|
2333
|
|
|
2334 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2335 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2336 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2337 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2338 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2339 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2340 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2341 Otherwise, all windows are considered.
|
|
20
|
2342 */
|
|
|
2343 (n, frame, console))
|
|
0
|
2344 {
|
|
|
2345 int i;
|
|
|
2346 Lisp_Object w;
|
|
|
2347
|
|
|
2348 CHECK_INT (n);
|
|
|
2349 w = Fselected_window (Qnil);
|
|
|
2350 i = XINT (n);
|
|
|
2351
|
|
|
2352 while (i > 0)
|
|
|
2353 {
|
|
|
2354 w = Fnext_window (w, Qnil, frame, console);
|
|
|
2355 i--;
|
|
|
2356 }
|
|
|
2357 while (i < 0)
|
|
|
2358 {
|
|
|
2359 w = Fprevious_window (w, Qnil, frame, console);
|
|
|
2360 i++;
|
|
|
2361 }
|
|
282
|
2362 Fselect_window (w, Qnil);
|
|
0
|
2363 return Qnil;
|
|
|
2364 }
|
|
|
2365
|
|
|
2366
|
|
|
2367 /* Look at all windows, performing an operation specified by TYPE
|
|
|
2368 with argument OBJ.
|
|
|
2369
|
|
|
2370 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected
|
|
|
2371 frame. If FRAMES is a frame, just look at windows on that frame.
|
|
|
2372 If MINI is non-zero, perform the operation on minibuffer windows too.
|
|
|
2373 */
|
|
|
2374
|
|
|
2375 enum window_loop
|
|
|
2376 {
|
|
|
2377 WINDOW_LOOP_UNUSED,
|
|
|
2378 GET_BUFFER_WINDOW, /* Arg is buffer */
|
|
|
2379 GET_LRU_WINDOW, /* Arg is t for full-width windows only */
|
|
|
2380 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */
|
|
|
2381 DELETE_BUFFER_WINDOWS, /* Arg is buffer */
|
|
|
2382 GET_LARGEST_WINDOW,
|
|
|
2383 UNSHOW_BUFFER, /* Arg is buffer */
|
|
|
2384 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */
|
|
|
2385 GET_BUFFER_MRU_WINDOW /* Arg is buffer */
|
|
|
2386 };
|
|
|
2387
|
|
|
2388 static Lisp_Object
|
|
|
2389 window_loop (enum window_loop type,
|
|
185
|
2390 Lisp_Object obj,
|
|
0
|
2391 int mini,
|
|
|
2392 Lisp_Object frames,
|
|
|
2393 int dedicated_too,
|
|
|
2394 Lisp_Object console)
|
|
|
2395 {
|
|
|
2396 /* This function can GC if type == DELETE_BUFFER_WINDOWS or UNSHOW_BUFFER */
|
|
|
2397 Lisp_Object w;
|
|
|
2398 Lisp_Object best_window = Qnil;
|
|
|
2399 Lisp_Object next_window;
|
|
|
2400 Lisp_Object last_window;
|
|
|
2401 struct frame *frame;
|
|
|
2402 Lisp_Object frame_arg = Qt;
|
|
|
2403 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */
|
|
|
2404 /* #### I think the change of "precomputing" last_window and next_window
|
|
|
2405 * #### catch the lossage this is meant(?) to punt on...
|
|
|
2406 */
|
|
185
|
2407 int lose_lose = 0;
|
|
0
|
2408 Lisp_Object devcons, concons;
|
|
|
2409
|
|
371
|
2410 /* FRAME_ARG is Qlambda to stick to one frame,
|
|
|
2411 Qvisible to consider all visible frames,
|
|
|
2412 or Qt otherwise. */
|
|
|
2413
|
|
0
|
2414 /* If we're only looping through windows on a particular frame,
|
|
|
2415 FRAME points to that frame. If we're looping through windows
|
|
|
2416 on all frames, FRAME is 0. */
|
|
371
|
2417
|
|
0
|
2418 if (FRAMEP (frames))
|
|
|
2419 frame = XFRAME (frames);
|
|
|
2420 else if (NILP (frames))
|
|
|
2421 frame = selected_frame ();
|
|
|
2422 else
|
|
|
2423 frame = 0;
|
|
|
2424 if (frame)
|
|
|
2425 frame_arg = Qlambda;
|
|
|
2426 else if (ZEROP (frames))
|
|
|
2427 frame_arg = frames;
|
|
|
2428 else if (EQ (frames, Qvisible))
|
|
|
2429 frame_arg = frames;
|
|
185
|
2430
|
|
0
|
2431 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
2432 {
|
|
|
2433 Lisp_Object device = XCAR (devcons);
|
|
272
|
2434 Lisp_Object the_frame;
|
|
0
|
2435
|
|
|
2436 if (frame)
|
|
|
2437 XSETFRAME (the_frame, frame);
|
|
|
2438 else
|
|
|
2439 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device));
|
|
|
2440
|
|
|
2441 if (NILP (the_frame))
|
|
|
2442 continue;
|
|
|
2443
|
|
371
|
2444 if (!device_matches_console_spec (the_frame, device, console))
|
|
0
|
2445 continue;
|
|
|
2446
|
|
|
2447 /* Pick a window to start with. */
|
|
|
2448 if (WINDOWP (obj))
|
|
|
2449 w = obj;
|
|
|
2450 else
|
|
|
2451 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame));
|
|
|
2452
|
|
|
2453 /* Figure out the last window we're going to mess with. Since
|
|
|
2454 Fnext_window, given the same options, is guaranteed to go in a
|
|
|
2455 ring, we can just use Fprevious_window to find the last one.
|
|
|
2456
|
|
|
2457 We can't just wait until we hit the first window again,
|
|
|
2458 because it might be deleted. */
|
|
|
2459
|
|
|
2460 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, Qt);
|
|
|
2461
|
|
|
2462 best_window = Qnil;
|
|
|
2463 for (;;)
|
|
|
2464 {
|
|
|
2465 struct window *p = XWINDOW (w);
|
|
|
2466 struct frame *w_frame = XFRAME (WINDOW_FRAME (p));
|
|
|
2467
|
|
|
2468 /* Pick the next window now, since some operations will delete
|
|
|
2469 the current window. */
|
|
371
|
2470 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, Qt);
|
|
0
|
2471
|
|
|
2472 /* #### Still needed ?? */
|
|
185
|
2473 /* Given the outstanding quality of the rest of this code,
|
|
0
|
2474 I feel no shame about putting this piece of shit in. */
|
|
|
2475 if (++lose_lose >= 500)
|
|
|
2476 return Qnil;
|
|
|
2477
|
|
|
2478 /* Note that we do not pay attention here to whether
|
|
|
2479 the frame is visible, since Fnext_window skips non-visible frames
|
|
|
2480 if that is desired, under the control of frame_arg. */
|
|
|
2481 if (! MINI_WINDOW_P (p)
|
|
|
2482 || (mini && minibuf_level > 0))
|
|
|
2483 switch (type)
|
|
|
2484 {
|
|
|
2485 case GET_BUFFER_WINDOW:
|
|
|
2486 {
|
|
|
2487 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2488 return w;
|
|
|
2489 break;
|
|
|
2490 }
|
|
|
2491
|
|
|
2492 case GET_BUFFER_WINDOW_COUNT:
|
|
|
2493 {
|
|
|
2494 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2495 count++;
|
|
|
2496 break;
|
|
|
2497 }
|
|
|
2498
|
|
|
2499 case GET_LRU_WINDOW:
|
|
|
2500 {
|
|
|
2501 /* t as arg means consider only full-width windows */
|
|
|
2502 if (!NILP (obj)
|
|
|
2503 && !window_full_width_p (p))
|
|
|
2504 break;
|
|
|
2505 /* Ignore dedicated windows and minibuffers. */
|
|
|
2506 if (MINI_WINDOW_P (p)
|
|
|
2507 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2508 break;
|
|
|
2509 if (NILP (best_window)
|
|
|
2510 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2511 > XINT (p->use_time)))
|
|
|
2512 best_window = w;
|
|
|
2513 break;
|
|
|
2514 }
|
|
|
2515
|
|
|
2516 case GET_BUFFER_MRU_WINDOW:
|
|
|
2517 {
|
|
|
2518 /* #### what about the first check in GET_LRU_WINDOW? */
|
|
|
2519 /* Ignore dedicated windows and minibuffers. */
|
|
|
2520 if (MINI_WINDOW_P (p)
|
|
|
2521 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2522 break;
|
|
|
2523
|
|
|
2524 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2525 {
|
|
|
2526 if (NILP (best_window)
|
|
|
2527 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2528 < XINT (p->use_time)))
|
|
|
2529 best_window = w;
|
|
|
2530 }
|
|
|
2531 break;
|
|
|
2532 }
|
|
|
2533
|
|
|
2534 case DELETE_OTHER_WINDOWS:
|
|
|
2535 {
|
|
|
2536 /* Don't delete the last window on a frame; this can
|
|
|
2537 happen when the minibuffer is selected, and would
|
|
|
2538 cause the frame to be deleted. */
|
|
|
2539 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w)))
|
|
|
2540 Fdelete_window (w, Qnil);
|
|
|
2541 break;
|
|
|
2542 }
|
|
|
2543
|
|
|
2544 case DELETE_BUFFER_WINDOWS:
|
|
|
2545 {
|
|
|
2546 if (EQ (p->buffer, obj))
|
|
|
2547 {
|
|
|
2548 struct frame *f = XFRAME (WINDOW_FRAME (p));
|
|
|
2549
|
|
|
2550 /* If this window is dedicated, and in a frame
|
|
|
2551 of its own, kill the frame. */
|
|
|
2552 if (EQ (w, FRAME_ROOT_WINDOW (f))
|
|
|
2553 && !NILP (p->dedicated)
|
|
|
2554 && other_visible_frames (f))
|
|
|
2555 {
|
|
|
2556 /* Skip the other windows on this frame.
|
|
|
2557 There might be one, the minibuffer! */
|
|
|
2558 if (! EQ (w, last_window))
|
|
|
2559 while (f == XFRAME (WINDOW_FRAME
|
|
|
2560 (XWINDOW (next_window))))
|
|
|
2561 {
|
|
|
2562 /* As we go, check for the end of the
|
|
|
2563 loop. We mustn't start going
|
|
|
2564 around a second time. */
|
|
|
2565 if (EQ (next_window, last_window))
|
|
|
2566 {
|
|
|
2567 last_window = w;
|
|
|
2568 break;
|
|
|
2569 }
|
|
|
2570 next_window = Fnext_window (next_window,
|
|
|
2571 mini ? Qt : Qnil,
|
|
|
2572 frame_arg, Qt);
|
|
|
2573 }
|
|
|
2574 /* Now we can safely delete the frame. */
|
|
|
2575 Fdelete_frame (WINDOW_FRAME (p), Qnil);
|
|
|
2576 }
|
|
|
2577 else
|
|
|
2578 /* If we're deleting the buffer displayed in
|
|
|
2579 the only window on the frame, find a new
|
|
|
2580 buffer to display there. */
|
|
|
2581 if (NILP (p->parent))
|
|
|
2582 {
|
|
|
2583 Lisp_Object new_buffer;
|
|
|
2584 new_buffer = Fother_buffer (obj, Qnil, Qnil);
|
|
|
2585 if (NILP (new_buffer))
|
|
|
2586 new_buffer = Fget_buffer_create (QSscratch);
|
|
|
2587 Fset_window_buffer (w, new_buffer);
|
|
|
2588 if (EQ (w, Fselected_window (Qnil)))
|
|
|
2589 Fset_buffer (p->buffer);
|
|
|
2590 }
|
|
|
2591 else
|
|
|
2592 Fdelete_window (w, Qnil);
|
|
|
2593 }
|
|
|
2594 break;
|
|
|
2595 }
|
|
|
2596
|
|
|
2597 case GET_LARGEST_WINDOW:
|
|
|
2598 {
|
|
|
2599 /* Ignore dedicated windows and minibuffers. */
|
|
|
2600 if (MINI_WINDOW_P (p)
|
|
|
2601 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2602 break;
|
|
|
2603 {
|
|
|
2604 /* write the check as follows to avoid tripping
|
|
|
2605 error_check_window() --ben */
|
|
|
2606 struct window *b = NILP (best_window) ? 0 :
|
|
|
2607 XWINDOW (best_window);
|
|
|
2608 if (NILP (best_window)
|
|
|
2609 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p))
|
|
|
2610 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b))))
|
|
|
2611 best_window = w;
|
|
|
2612 }
|
|
|
2613 break;
|
|
|
2614 }
|
|
|
2615
|
|
|
2616 case UNSHOW_BUFFER:
|
|
|
2617 {
|
|
|
2618 if (EQ (p->buffer, obj))
|
|
|
2619 {
|
|
|
2620 /* Find another buffer to show in this window. */
|
|
|
2621 Lisp_Object another_buffer =
|
|
|
2622 Fother_buffer (obj, Qnil, Qnil);
|
|
|
2623 if (NILP (another_buffer))
|
|
|
2624 another_buffer
|
|
|
2625 = Fget_buffer_create (QSscratch);
|
|
|
2626 /* If this window is dedicated, and in a frame
|
|
|
2627 of its own, kill the frame. */
|
|
|
2628 if (EQ (w, FRAME_ROOT_WINDOW (w_frame))
|
|
|
2629 && !NILP (p->dedicated)
|
|
|
2630 && other_visible_frames (w_frame))
|
|
|
2631 {
|
|
|
2632 /* Skip the other windows on this frame.
|
|
|
2633 There might be one, the minibuffer! */
|
|
|
2634 if (! EQ (w, last_window))
|
|
|
2635 while (w_frame == XFRAME (WINDOW_FRAME
|
|
|
2636 (XWINDOW (next_window))))
|
|
|
2637 {
|
|
|
2638 /* As we go, check for the end of the
|
|
|
2639 loop. We mustn't start going
|
|
|
2640 around a second time. */
|
|
|
2641 if (EQ (next_window, last_window))
|
|
|
2642 {
|
|
|
2643 last_window = w;
|
|
|
2644 break;
|
|
|
2645 }
|
|
|
2646 next_window = Fnext_window (next_window,
|
|
|
2647 mini ? Qt : Qnil,
|
|
|
2648 frame_arg, Qt);
|
|
|
2649 }
|
|
|
2650 /* Now we can safely delete the frame. */
|
|
|
2651 delete_frame_internal (XFRAME (WINDOW_FRAME (p)),
|
|
|
2652 0, 0, 0);
|
|
|
2653 }
|
|
|
2654 else
|
|
|
2655 {
|
|
|
2656 /* Otherwise show a different buffer in the
|
|
|
2657 window. */
|
|
|
2658 p->dedicated = Qnil;
|
|
|
2659 Fset_window_buffer (w, another_buffer);
|
|
|
2660 if (EQ (w, Fselected_window (Qnil)))
|
|
|
2661 Fset_buffer (p->buffer);
|
|
|
2662 }
|
|
|
2663 }
|
|
|
2664 break;
|
|
|
2665 }
|
|
|
2666
|
|
185
|
2667 default:
|
|
0
|
2668 abort ();
|
|
|
2669 }
|
|
|
2670
|
|
|
2671 if (EQ (w, last_window))
|
|
|
2672 break;
|
|
|
2673
|
|
|
2674 w = next_window;
|
|
|
2675 }
|
|
|
2676 }
|
|
|
2677
|
|
173
|
2678 return type == GET_BUFFER_WINDOW_COUNT ? make_int (count) : best_window;
|
|
0
|
2679 }
|
|
|
2680
|
|
|
2681 #if 0 /* not currently used */
|
|
|
2682
|
|
|
2683 int
|
|
|
2684 buffer_window_count (struct buffer *b, struct frame *f)
|
|
|
2685 {
|
|
|
2686 Lisp_Object buffer, frame;
|
|
|
2687
|
|
|
2688 XSETFRAME (frame, f);
|
|
|
2689 XSETBUFFER (buffer, b);
|
|
|
2690
|
|
|
2691 return XINT (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1,
|
|
|
2692 Qnil));
|
|
|
2693 }
|
|
|
2694
|
|
|
2695 int
|
|
|
2696 buffer_window_mru (struct window *w)
|
|
|
2697 {
|
|
185
|
2698 Lisp_Object window =
|
|
0
|
2699 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil);
|
|
|
2700
|
|
|
2701 if (NILP (window))
|
|
|
2702 return 0;
|
|
|
2703 else if (XWINDOW (window) == w)
|
|
|
2704 return 1;
|
|
|
2705 else
|
|
|
2706 return 0;
|
|
|
2707 }
|
|
|
2708
|
|
|
2709 #endif
|
|
|
2710
|
|
|
2711
|
|
20
|
2712 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /*
|
|
0
|
2713 Return the window least recently selected or used for display.
|
|
|
2714 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2715 If FRAME is 0, search all visible and iconified frames.
|
|
|
2716 If FRAME is t, search all frames.
|
|
|
2717 If FRAME is nil, search only the selected frame.
|
|
|
2718 If FRAME is a frame, search only that frame.
|
|
|
2719
|
|
|
2720 Optional second argument CONSOLE controls which consoles or devices the
|
|
|
2721 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2722 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2723 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2724 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2725 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2726 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2727 Otherwise, all windows are considered.
|
|
20
|
2728 */
|
|
|
2729 (frame, console))
|
|
0
|
2730 {
|
|
|
2731 Lisp_Object w;
|
|
|
2732 /* First try for a non-dedicated window that is full-width */
|
|
|
2733 w = window_loop (GET_LRU_WINDOW, Qt, 0, frame, 0, console);
|
|
|
2734 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2735 return w;
|
|
|
2736
|
|
|
2737 /* Then try for any non-dedicated window */
|
|
|
2738 w = window_loop (GET_LRU_WINDOW, Qnil, 0, frame, 0, console);
|
|
|
2739 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2740 return w;
|
|
|
2741
|
|
|
2742 #if 0
|
|
|
2743 /* FSFmacs never returns a dedicated window here. If we do,
|
|
|
2744 it makes `display-buffer' not work right. #### All of this
|
|
|
2745 shit is so disgusting and awful that it needs to be rethought
|
|
|
2746 from scratch. */
|
|
|
2747 /* then try for a dedicated window that is full-width */
|
|
|
2748 w = window_loop (GET_LRU_WINDOW, Qt, 0, frame, 1, console);
|
|
|
2749 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2750 return w;
|
|
|
2751
|
|
|
2752 /* If none of them, then all windows, dedicated or not. */
|
|
|
2753 w = window_loop (GET_LRU_WINDOW, Qnil, 0, frame, 1, console);
|
|
|
2754
|
|
|
2755 /* At this point we damn well better have found something. */
|
|
|
2756 if (NILP (w)) abort ();
|
|
|
2757 #endif
|
|
|
2758
|
|
173
|
2759 return w;
|
|
0
|
2760 }
|
|
|
2761
|
|
20
|
2762 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /*
|
|
0
|
2763 Return the window largest in area.
|
|
|
2764 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2765 If FRAME is 0, search all visible and iconified frames.
|
|
|
2766 If FRAME is t, search all frames.
|
|
|
2767 If FRAME is nil, search only the selected frame.
|
|
|
2768 If FRAME is a frame, search only that frame.
|
|
|
2769
|
|
|
2770 Optional second argument CONSOLE controls which consoles or devices the
|
|
|
2771 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2772 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2773 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2774 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2775 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2776 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2777 Otherwise, all windows are considered.
|
|
20
|
2778 */
|
|
|
2779 (frame, console))
|
|
0
|
2780 {
|
|
|
2781 /* Don't search dedicated windows because FSFmacs doesn't.
|
|
|
2782 This stuff is all black magic so don't try to apply common
|
|
|
2783 sense to it. */
|
|
|
2784 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, frame, 0, console);
|
|
|
2785 }
|
|
|
2786
|
|
20
|
2787 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /*
|
|
0
|
2788 Return a window currently displaying BUFFER, or nil if none.
|
|
|
2789 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2790 If optional argument FRAME is 0, search all visible and iconified frames.
|
|
|
2791 If FRAME is t, search all frames.
|
|
|
2792 If FRAME is nil, search only the selected frame.
|
|
|
2793 If FRAME is a frame, search only that frame.
|
|
|
2794
|
|
|
2795 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2796 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2797 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2798 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2799 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2800 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2801 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2802 Otherwise, all windows are considered.
|
|
20
|
2803 */
|
|
|
2804 (buffer, frame, console))
|
|
0
|
2805 {
|
|
|
2806 buffer = Fget_buffer (buffer);
|
|
|
2807 if (BUFFERP (buffer))
|
|
|
2808 /* Search dedicated windows too. (Doesn't matter here anyway.) */
|
|
|
2809 return window_loop (GET_BUFFER_WINDOW, buffer, 1, frame, 1, console);
|
|
|
2810 else
|
|
|
2811 return Qnil;
|
|
|
2812 }
|
|
|
2813
|
|
|
2814 /* These functions used to be `buffer-left-margin-pixel-width', etc.
|
|
|
2815 but there is no sensible way to implement those functions, since
|
|
|
2816 you can't in general derive a window from a buffer. */
|
|
|
2817
|
|
280
|
2818 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width,
|
|
|
2819 0, 1, 0, /*
|
|
0
|
2820 Return the width in pixels of the left outside margin of window WINDOW.
|
|
|
2821 If WINDOW is nil, the selected window is assumed.
|
|
20
|
2822 */
|
|
|
2823 (window))
|
|
0
|
2824 {
|
|
149
|
2825 return make_int (window_left_margin_width (decode_window (window)));
|
|
0
|
2826 }
|
|
|
2827
|
|
280
|
2828 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width,
|
|
|
2829 0, 1, 0, /*
|
|
0
|
2830 Return the width in pixels of the right outside margin of window WINDOW.
|
|
|
2831 If WINDOW is nil, the selected window is assumed.
|
|
20
|
2832 */
|
|
|
2833 (window))
|
|
0
|
2834 {
|
|
149
|
2835 return make_int (window_right_margin_width (decode_window (window)));
|
|
0
|
2836 }
|
|
|
2837
|
|
20
|
2838 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /*
|
|
0
|
2839 Make WINDOW (or the selected window) fill its frame.
|
|
|
2840 Only the frame WINDOW is on is affected.
|
|
|
2841 This function tries to reduce display jumps
|
|
|
2842 by keeping the text previously visible in WINDOW
|
|
|
2843 in the same place on the frame. Doing this depends on
|
|
|
2844 the value of (window-start WINDOW), so if calling this function
|
|
|
2845 in a program gives strange scrolling, make sure the window-start
|
|
|
2846 value is reasonable when this function is called.
|
|
20
|
2847 */
|
|
|
2848 (window))
|
|
0
|
2849 {
|
|
|
2850 struct window *w = decode_window (window);
|
|
|
2851 struct buffer *b = XBUFFER (w->buffer);
|
|
|
2852 Bufpos start_pos;
|
|
|
2853 int old_top = WINDOW_TOP (w);
|
|
|
2854
|
|
|
2855 XSETWINDOW (window, w);
|
|
|
2856
|
|
|
2857 if (MINI_WINDOW_P (w) && old_top > 0)
|
|
|
2858 error ("Can't expand minibuffer to full frame");
|
|
|
2859
|
|
|
2860 /* Ignore dedicated windows. */
|
|
|
2861 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil);
|
|
|
2862
|
|
|
2863 start_pos = marker_position (w->start[CURRENT_DISP]);
|
|
|
2864
|
|
|
2865 /* Try to minimize scrolling, by setting the window start to the
|
|
|
2866 point which will cause the text at the old window start to be at
|
|
|
2867 the same place on the frame. But don't try to do this if the
|
|
|
2868 window start is outside the visible portion (as might happen when
|
|
|
2869 the display is not current, due to typeahead). */
|
|
|
2870 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b)
|
|
|
2871 && !MINI_WINDOW_P (w))
|
|
|
2872 {
|
|
|
2873 Bufpos new_start = start_with_line_at_pixpos (w, start_pos, old_top);
|
|
|
2874
|
|
|
2875 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b))
|
|
|
2876 {
|
|
|
2877 Fset_marker (w->start[CURRENT_DISP], make_int (new_start),
|
|
|
2878 w->buffer);
|
|
|
2879 w->start_at_line_beg = beginning_of_line_p (b, new_start);
|
|
|
2880 }
|
|
|
2881 /* We need to do this, so that the window-scroll-functions
|
|
|
2882 get called. */
|
|
|
2883 w->force_start = 1;
|
|
|
2884 }
|
|
|
2885
|
|
|
2886 return Qnil;
|
|
|
2887 }
|
|
|
2888
|
|
20
|
2889 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3,
|
|
|
2890 "bDelete windows on (buffer): ", /*
|
|
0
|
2891 Delete all windows showing BUFFER.
|
|
|
2892 Optional second argument FRAME controls which frames are affected.
|
|
|
2893 If nil or omitted, delete all windows showing BUFFER in any frame.
|
|
|
2894 If t, delete only windows showing BUFFER in the selected frame.
|
|
|
2895 If `visible', delete all windows showing BUFFER in any visible frame.
|
|
|
2896 If a frame, delete only windows showing BUFFER in that frame.
|
|
|
2897
|
|
|
2898 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2899 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2900 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2901 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2902 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2903 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2904 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2905 Otherwise, all windows are considered.
|
|
20
|
2906 */
|
|
|
2907 (buffer, frame, console))
|
|
0
|
2908 {
|
|
|
2909 /* This function can GC */
|
|
|
2910 /* FRAME uses t and nil to mean the opposite of what window_loop
|
|
|
2911 expects. */
|
|
|
2912 if (!FRAMEP (frame))
|
|
|
2913 frame = NILP (frame) ? Qt : Qnil;
|
|
|
2914
|
|
|
2915 if (!NILP (buffer))
|
|
|
2916 {
|
|
|
2917 buffer = Fget_buffer (buffer);
|
|
|
2918 CHECK_BUFFER (buffer);
|
|
|
2919 /* Ignore dedicated windows. */
|
|
|
2920 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, frame, 0, console);
|
|
|
2921 }
|
|
|
2922 return Qnil;
|
|
|
2923 }
|
|
|
2924
|
|
20
|
2925 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 1,
|
|
|
2926 "bReplace buffer in windows: ", /*
|
|
0
|
2927 Replace BUFFER with some other buffer in all windows showing it.
|
|
20
|
2928 */
|
|
|
2929 (buffer))
|
|
0
|
2930 {
|
|
|
2931 /* This function can GC */
|
|
|
2932 if (!NILP (buffer))
|
|
|
2933 {
|
|
|
2934 buffer = Fget_buffer (buffer);
|
|
|
2935 CHECK_BUFFER (buffer);
|
|
|
2936 /* Ignore dedicated windows. */
|
|
|
2937 window_loop (UNSHOW_BUFFER, buffer, 0, Qt, 0, Qnil);
|
|
|
2938 }
|
|
|
2939 return Qnil;
|
|
|
2940 }
|
|
|
2941
|
|
|
2942 /* The smallest acceptable dimensions for a window. Anything smaller
|
|
|
2943 might crash Emacs. */
|
|
|
2944 #define MIN_SAFE_WINDOW_WIDTH (2)
|
|
|
2945 #define MIN_SAFE_WINDOW_HEIGHT (2)
|
|
|
2946
|
|
|
2947 /* Make sure that window_min_height and window_min_width are
|
|
|
2948 not too small; if they are, set them to safe minima. */
|
|
|
2949
|
|
|
2950 static void
|
|
|
2951 check_min_window_sizes (void)
|
|
|
2952 {
|
|
|
2953 /* Smaller values might permit a crash. */
|
|
|
2954 if (window_min_width < MIN_SAFE_WINDOW_WIDTH)
|
|
|
2955 window_min_width = MIN_SAFE_WINDOW_WIDTH;
|
|
|
2956 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT)
|
|
|
2957 window_min_height = MIN_SAFE_WINDOW_HEIGHT;
|
|
|
2958 }
|
|
|
2959
|
|
|
2960 /* If *ROWS or *COLS are too small a size for FRAME, set them to the
|
|
|
2961 minimum allowable size. */
|
|
|
2962 void
|
|
|
2963 check_frame_size (struct frame *frame, int *rows, int *cols)
|
|
|
2964 {
|
|
|
2965 /* For height, we have to see whether the frame has a minibuffer, and
|
|
|
2966 whether it wants a modeline. */
|
|
|
2967 int min_height =
|
|
|
2968 (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1
|
|
|
2969 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT
|
|
|
2970 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1);
|
|
|
2971
|
|
|
2972 if (*rows < min_height)
|
|
|
2973 *rows = min_height;
|
|
|
2974 if (*cols < MIN_SAFE_WINDOW_WIDTH)
|
|
|
2975 *cols = MIN_SAFE_WINDOW_WIDTH;
|
|
|
2976 }
|
|
|
2977
|
|
|
2978 /* Normally the window is deleted if it gets too small.
|
|
|
2979 nodelete nonzero means do not do this.
|
|
|
2980 (The caller should check later and do so if appropriate) */
|
|
|
2981 static void
|
|
|
2982 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete,
|
|
|
2983 int set_height)
|
|
|
2984 {
|
|
|
2985 struct window *w = XWINDOW (window);
|
|
|
2986 struct frame *f = XFRAME (w->frame);
|
|
|
2987 struct window *c;
|
|
|
2988 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w));
|
|
|
2989 Lisp_Object child, minor_kid, major_kid;
|
|
|
2990 int minsize;
|
|
|
2991 int line_size;
|
|
|
2992 int defheight, defwidth;
|
|
|
2993
|
|
|
2994 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
2995 functions should be called. */
|
|
|
2996 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
2997 line_size = (set_height ? defheight : defwidth);
|
|
|
2998
|
|
272
|
2999 check_min_window_sizes ();
|
|
|
3000
|
|
0
|
3001 minsize = (set_height ? window_min_height : window_min_width);
|
|
|
3002 minsize *= line_size;
|
|
|
3003
|
|
|
3004 if (!nodelete
|
|
|
3005 && !TOP_LEVEL_WINDOW_P (w)
|
|
|
3006 && new_pixsize < minsize)
|
|
|
3007 {
|
|
|
3008 Fdelete_window (window, Qnil);
|
|
|
3009 return;
|
|
|
3010 }
|
|
|
3011
|
|
|
3012 SET_LAST_MODIFIED (w, 0);
|
|
|
3013 SET_LAST_FACECHANGE (w);
|
|
|
3014 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */
|
|
|
3015 if (set_height)
|
|
|
3016 {
|
|
|
3017 WINDOW_HEIGHT (w) = new_pixsize;
|
|
|
3018 major_kid = w->vchild;
|
|
|
3019 minor_kid = w->hchild;
|
|
|
3020 }
|
|
|
3021 else
|
|
|
3022 {
|
|
|
3023 WINDOW_WIDTH (w) = new_pixsize;
|
|
|
3024 major_kid = w->hchild;
|
|
|
3025 minor_kid = w->vchild;
|
|
|
3026 }
|
|
|
3027
|
|
|
3028 if (!NILP (minor_kid))
|
|
|
3029 {
|
|
|
3030 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3031 {
|
|
|
3032 if (set_height)
|
|
|
3033 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w);
|
|
|
3034 else
|
|
|
3035 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w);
|
|
|
3036
|
|
|
3037 set_window_pixsize (child, new_pixsize, nodelete, set_height);
|
|
|
3038 }
|
|
|
3039 }
|
|
|
3040 else if (!NILP (major_kid))
|
|
|
3041 {
|
|
|
3042 int last_pos, last_old_pos, pos, old_pos, first;
|
|
215
|
3043 int pixel_adj_left = new_pixsize - old_pixsize;
|
|
0
|
3044 int div_val = old_pixsize << 1;
|
|
|
3045
|
|
209
|
3046 /*
|
|
|
3047 * Previously we bailed out here if there was no size change.
|
|
215
|
3048 * (pixel_adj_left == 0) But this broke toolbar updates. If a
|
|
|
3049 * toolbar appears or disappears, windows may not change size,
|
|
|
3050 * but their top and left coordinates need to be updated.
|
|
209
|
3051 *
|
|
215
|
3052 * So we don't bail until after the loop below.
|
|
209
|
3053 */
|
|
0
|
3054
|
|
|
3055 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w));
|
|
|
3056 last_old_pos = 0;
|
|
|
3057
|
|
|
3058 for (child = major_kid; !NILP (child); child = c->next)
|
|
|
3059 {
|
|
|
3060 c = XWINDOW (child);
|
|
|
3061
|
|
|
3062 if (set_height)
|
|
|
3063 {
|
|
|
3064 old_pos = last_old_pos + WINDOW_HEIGHT (c);
|
|
|
3065 WINDOW_TOP (c) = last_pos;
|
|
|
3066 }
|
|
|
3067 else
|
|
|
3068 {
|
|
|
3069 old_pos = last_old_pos + WINDOW_WIDTH (c);
|
|
|
3070 WINDOW_LEFT (c) = last_pos;
|
|
|
3071 }
|
|
|
3072
|
|
|
3073 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val;
|
|
2
|
3074 /* All but the last window should have a height which is
|
|
0
|
3075 a multiple of the default line height. */
|
|
|
3076 if (!NILP (c->next))
|
|
|
3077 pos = (pos / line_size) * line_size;
|
|
|
3078
|
|
|
3079 /* Avoid confusion: don't delete child if it becomes too small */
|
|
|
3080 set_window_pixsize (child, pos + first - last_pos, 1, set_height);
|
|
|
3081
|
|
|
3082 last_pos = pos + first;
|
|
|
3083 last_old_pos = old_pos;
|
|
|
3084 }
|
|
|
3085
|
|
215
|
3086 /* Sometimes we may get called with our old size. In that case
|
|
|
3087 we don't need to do anything else. */
|
|
|
3088 if (!pixel_adj_left)
|
|
|
3089 return;
|
|
|
3090
|
|
0
|
3091 /* Now delete any children that became too small. */
|
|
|
3092 if (!nodelete)
|
|
|
3093 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3094 {
|
|
|
3095 if (set_height)
|
|
|
3096 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0);
|
|
|
3097 else
|
|
|
3098 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0);
|
|
|
3099 }
|
|
|
3100 }
|
|
|
3101 }
|
|
|
3102
|
|
|
3103 /* Set the height of WINDOW and all its inferiors. */
|
|
|
3104 void
|
|
|
3105 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete)
|
|
|
3106 {
|
|
|
3107 set_window_pixsize (window, new_pixheight, nodelete, 1);
|
|
|
3108 }
|
|
|
3109
|
|
|
3110 /* Recursively set width of WINDOW and its inferiors. */
|
|
|
3111 void
|
|
|
3112 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete)
|
|
|
3113 {
|
|
|
3114 set_window_pixsize (window, new_pixwidth, nodelete, 0);
|
|
|
3115 }
|
|
|
3116
|
|
|
3117
|
|
|
3118 static int window_select_count;
|
|
|
3119
|
|
20
|
3120 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 2, 0, /*
|
|
0
|
3121 Make WINDOW display BUFFER as its contents.
|
|
|
3122 BUFFER can be a buffer or buffer name.
|
|
20
|
3123 */
|
|
|
3124 (window, buffer))
|
|
0
|
3125 {
|
|
|
3126 Lisp_Object tem;
|
|
|
3127 struct window *w = decode_window (window);
|
|
|
3128
|
|
|
3129 buffer = Fget_buffer (buffer);
|
|
|
3130 CHECK_BUFFER (buffer);
|
|
|
3131
|
|
|
3132 if (!BUFFER_LIVE_P (XBUFFER (buffer)))
|
|
|
3133 error ("Attempt to display deleted buffer");
|
|
|
3134
|
|
|
3135 tem = w->buffer;
|
|
|
3136 if (NILP (tem))
|
|
|
3137 error ("Window is deleted");
|
|
|
3138
|
|
|
3139 /* While this seems like a logical thing to do, it causes problems
|
|
|
3140 because of saved window configurations. It is possible for a
|
|
|
3141 buffer to get restored into a window in which it is already being
|
|
|
3142 displayed, but start and point are actually at completely
|
|
|
3143 different locations. So we let this function complete fully and
|
|
|
3144 it will then make sure redisplay correctly updates things.
|
|
|
3145
|
|
|
3146 #### This is a kludge. The correct approach is not to do this
|
|
|
3147 but to fix set-window-configuration. */
|
|
|
3148 #if 0
|
|
|
3149 else if (EQ (tem, buffer))
|
|
149
|
3150 return Qnil;
|
|
0
|
3151 #endif
|
|
|
3152 else if (! EQ (tem, Qt)) /* w->buffer is t when the window
|
|
|
3153 is first being set up. */
|
|
|
3154 {
|
|
|
3155 if (!NILP (w->dedicated) && !EQ (tem, buffer))
|
|
|
3156 error ("Window is dedicated to buffer %s",
|
|
16
|
3157 XSTRING_DATA (XBUFFER (tem)->name));
|
|
0
|
3158
|
|
|
3159 unshow_buffer (w);
|
|
|
3160 }
|
|
|
3161
|
|
|
3162 w->buffer = buffer;
|
|
|
3163 w->window_end_pos[CURRENT_DISP] = 0;
|
|
259
|
3164 w->hscroll = 0;
|
|
|
3165 w->modeline_hscroll = 0;
|
|
0
|
3166 Fset_marker (w->pointm[CURRENT_DISP],
|
|
|
3167 make_int (BUF_PT (XBUFFER (buffer))),
|
|
|
3168 buffer);
|
|
|
3169 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
3170 make_int (XBUFFER (buffer)->last_window_start),
|
|
|
3171 buffer);
|
|
|
3172 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer);
|
|
373
|
3173 /* set start_at_line_beg correctly. GE */
|
|
|
3174 w->start_at_line_beg = beginning_of_line_p (XBUFFER (buffer),
|
|
380
|
3175 marker_position (w->start[CURRENT_DISP]));
|
|
0
|
3176 w->force_start = 0; /* Lucid fix */
|
|
|
3177 SET_LAST_MODIFIED (w, 1);
|
|
|
3178 SET_LAST_FACECHANGE (w);
|
|
|
3179 MARK_WINDOWS_CHANGED (w);
|
|
|
3180 recompute_all_cached_specifiers_in_window (w);
|
|
|
3181 if (EQ (window, Fselected_window (Qnil)))
|
|
|
3182 {
|
|
|
3183 Fset_buffer (buffer);
|
|
|
3184 }
|
|
|
3185 return Qnil;
|
|
|
3186 }
|
|
|
3187
|
|
282
|
3188 DEFUN ("select-window", Fselect_window, 1, 2, 0, /*
|
|
0
|
3189 Select WINDOW. Most editing will apply to WINDOW's buffer.
|
|
|
3190 The main editor command loop selects the buffer of the selected window
|
|
|
3191 before each command.
|
|
282
|
3192
|
|
371
|
3193 With non-nil optional argument `norecord', do not modify the
|
|
282
|
3194 global or per-frame buffer ordering.
|
|
20
|
3195 */
|
|
282
|
3196 (window, norecord))
|
|
0
|
3197 {
|
|
|
3198 struct window *w;
|
|
|
3199 Lisp_Object old_selected_window = Fselected_window (Qnil);
|
|
185
|
3200
|
|
0
|
3201 CHECK_LIVE_WINDOW (window);
|
|
|
3202 w = XWINDOW (window);
|
|
|
3203
|
|
|
3204 /* we have already caught dead-window errors */
|
|
|
3205 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
3206 error ("Trying to select non-leaf window");
|
|
|
3207
|
|
|
3208 w->use_time = make_int (++window_select_count);
|
|
|
3209 if (EQ (window, old_selected_window))
|
|
|
3210 return window;
|
|
|
3211
|
|
|
3212 /* deselect the old window, if it exists (it might not exist if
|
|
|
3213 the selected device has no frames, which occurs at startup) */
|
|
|
3214 if (!NILP (old_selected_window))
|
|
|
3215 {
|
|
|
3216 struct window *ow = XWINDOW (old_selected_window);
|
|
|
3217
|
|
|
3218 Fset_marker (ow->pointm[CURRENT_DISP],
|
|
|
3219 make_int (BUF_PT (XBUFFER (ow->buffer))),
|
|
|
3220 ow->buffer);
|
|
|
3221
|
|
|
3222 MARK_WINDOWS_CHANGED (ow);
|
|
|
3223 }
|
|
|
3224
|
|
|
3225 /* now select the window's frame */
|
|
|
3226 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window);
|
|
185
|
3227
|
|
0
|
3228 select_frame_1 (WINDOW_FRAME (w));
|
|
|
3229
|
|
|
3230 /* also select the window's buffer */
|
|
282
|
3231 if (NILP (norecord))
|
|
|
3232 Frecord_buffer (w->buffer);
|
|
0
|
3233 Fset_buffer (w->buffer);
|
|
|
3234
|
|
|
3235 /* Go to the point recorded in the window.
|
|
|
3236 This is important when the buffer is in more
|
|
|
3237 than one window. It also matters when
|
|
|
3238 redisplay_window has altered point after scrolling,
|
|
|
3239 because it makes the change only in the window. */
|
|
|
3240 {
|
|
|
3241 Bufpos new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
3242 if (new_point < BUF_BEGV (current_buffer))
|
|
|
3243 new_point = BUF_BEGV (current_buffer);
|
|
|
3244 else if (new_point > BUF_ZV (current_buffer))
|
|
|
3245 new_point = BUF_ZV (current_buffer);
|
|
|
3246
|
|
|
3247 BUF_SET_PT (current_buffer, new_point);
|
|
|
3248 }
|
|
|
3249
|
|
|
3250 MARK_WINDOWS_CHANGED (w);
|
|
|
3251
|
|
|
3252 return window;
|
|
|
3253 }
|
|
|
3254
|
|
|
3255 Lisp_Object
|
|
|
3256 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p,
|
|
|
3257 Lisp_Object override_frame)
|
|
|
3258 {
|
|
|
3259 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame);
|
|
|
3260 }
|
|
|
3261
|
|
|
3262 void
|
|
|
3263 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame)
|
|
|
3264 {
|
|
|
3265 /* This function can GC */
|
|
|
3266 Lisp_Object window;
|
|
|
3267 struct window *w;
|
|
|
3268 struct buffer *b = XBUFFER (buf);
|
|
|
3269
|
|
|
3270 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b);
|
|
|
3271 widen_buffer (b, 0);
|
|
|
3272 BUF_SET_PT (b, BUF_BEG (b));
|
|
|
3273
|
|
272
|
3274 if (!NILP (Vtemp_buffer_show_function))
|
|
0
|
3275 call1 (Vtemp_buffer_show_function, buf);
|
|
|
3276 else
|
|
|
3277 {
|
|
|
3278 window = display_buffer (buf, Qnil, same_frame);
|
|
|
3279
|
|
|
3280 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil)))
|
|
|
3281 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window)));
|
|
|
3282
|
|
274
|
3283 Vminibuffer_scroll_window = window;
|
|
0
|
3284 w = XWINDOW (window);
|
|
|
3285 w->hscroll = 0;
|
|
257
|
3286 w->modeline_hscroll = 0;
|
|
0
|
3287 set_marker_restricted (w->start[CURRENT_DISP], make_int (1), buf);
|
|
|
3288 set_marker_restricted (w->pointm[CURRENT_DISP], make_int (1), buf);
|
|
|
3289 set_marker_restricted (w->sb_point, make_int (1), buf);
|
|
|
3290
|
|
185
|
3291 /* Run temp-buffer-show-hook, with the chosen window selected. */
|
|
0
|
3292 if (!preparing_for_armageddon)
|
|
|
3293 {
|
|
|
3294 Lisp_Object tem;
|
|
|
3295 tem = Fboundp (Qtemp_buffer_show_hook);
|
|
|
3296 if (!NILP (tem))
|
|
|
3297 {
|
|
|
3298 tem = Fsymbol_value (Qtemp_buffer_show_hook);
|
|
|
3299 if (!NILP (tem))
|
|
|
3300 {
|
|
|
3301 int count = specpdl_depth ();
|
|
|
3302
|
|
|
3303 /* Select the window that was chosen, for running
|
|
|
3304 the hook. */
|
|
|
3305 record_unwind_protect (save_window_excursion_unwind,
|
|
|
3306 Fcurrent_window_configuration (Qnil));
|
|
|
3307
|
|
282
|
3308 Fselect_window (window, Qnil);
|
|
0
|
3309 run_hook (Qtemp_buffer_show_hook);
|
|
|
3310 unbind_to (count, Qnil);
|
|
|
3311 }
|
|
|
3312 }
|
|
|
3313 }
|
|
|
3314 }
|
|
|
3315 }
|
|
|
3316
|
|
|
3317 static void
|
|
|
3318 make_dummy_parent (Lisp_Object window)
|
|
|
3319 {
|
|
272
|
3320 Lisp_Object new;
|
|
0
|
3321 struct window *o = XWINDOW (window);
|
|
185
|
3322 struct window *p = alloc_lcrecord_type (struct window, lrecord_window);
|
|
0
|
3323
|
|
|
3324 XSETWINDOW (new, p);
|
|
|
3325 copy_lcrecord (p, o);
|
|
|
3326
|
|
|
3327 /* Don't copy the pointers to the line start cache or the face
|
|
|
3328 instances. */
|
|
185
|
3329 p->line_start_cache = Dynarr_new (line_start_cache);
|
|
|
3330 p->face_cachels = Dynarr_new (face_cachel);
|
|
|
3331 p->glyph_cachels = Dynarr_new (glyph_cachel);
|
|
0
|
3332
|
|
|
3333 /* Put new into window structure in place of window */
|
|
|
3334 replace_window (window, new);
|
|
|
3335
|
|
|
3336 o->next = Qnil;
|
|
|
3337 o->prev = Qnil;
|
|
|
3338 o->vchild = Qnil;
|
|
|
3339 o->hchild = Qnil;
|
|
|
3340 o->parent = new;
|
|
|
3341
|
|
|
3342 p->start[CURRENT_DISP] = Qnil;
|
|
|
3343 p->start[DESIRED_DISP] = Qnil;
|
|
|
3344 p->start[CMOTION_DISP] = Qnil;
|
|
|
3345 p->pointm[CURRENT_DISP] = Qnil;
|
|
|
3346 p->pointm[DESIRED_DISP] = Qnil;
|
|
|
3347 p->pointm[CMOTION_DISP] = Qnil;
|
|
|
3348 p->sb_point = Qnil;
|
|
|
3349 p->buffer = Qnil;
|
|
|
3350 }
|
|
|
3351
|
|
20
|
3352 DEFUN ("split-window", Fsplit_window, 0, 3, "", /*
|
|
0
|
3353 Split WINDOW, putting SIZE lines in the first of the pair.
|
|
|
3354 WINDOW defaults to selected one and SIZE to half its size.
|
|
371
|
3355 If optional third arg HOR-FLAG is non-nil, split side by side
|
|
0
|
3356 and put SIZE columns in the first of the pair.
|
|
20
|
3357 */
|
|
|
3358 (window, chsize, horflag))
|
|
0
|
3359 {
|
|
|
3360 Lisp_Object new;
|
|
|
3361 struct window *o, *p;
|
|
|
3362 struct frame *f;
|
|
|
3363 int size;
|
|
|
3364 int psize;
|
|
|
3365
|
|
|
3366 if (NILP (window))
|
|
|
3367 window = Fselected_window (Qnil);
|
|
|
3368 else
|
|
371
|
3369 CHECK_WINDOW (window);
|
|
0
|
3370
|
|
|
3371 o = XWINDOW (window);
|
|
|
3372 f = XFRAME (WINDOW_FRAME (o));
|
|
|
3373
|
|
|
3374 if (NILP (chsize))
|
|
|
3375 {
|
|
|
3376 if (!NILP (horflag))
|
|
|
3377 /* In the new scheme, we are symmetric with respect to separators
|
|
|
3378 so there is no need to do weird things here. */
|
|
|
3379 {
|
|
|
3380 psize = WINDOW_WIDTH (o) >> 1;
|
|
|
3381 size = window_pixel_width_to_char_width (o, psize, 0);
|
|
|
3382 }
|
|
|
3383 else
|
|
|
3384 {
|
|
|
3385 psize = WINDOW_HEIGHT (o) >> 1;
|
|
|
3386 size = window_pixel_height_to_char_height (o, psize, 1);
|
|
|
3387 }
|
|
|
3388 }
|
|
|
3389 else
|
|
|
3390 {
|
|
|
3391 CHECK_INT (chsize);
|
|
|
3392 size = XINT (chsize);
|
|
|
3393 if (!NILP (horflag))
|
|
|
3394 psize = window_char_width_to_pixel_width (o, size, 0);
|
|
|
3395 else
|
|
|
3396 psize = window_char_height_to_pixel_height (o, size, 1);
|
|
|
3397 }
|
|
|
3398
|
|
|
3399 if (MINI_WINDOW_P (o))
|
|
|
3400 error ("Attempt to split minibuffer window");
|
|
|
3401 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o))))
|
|
|
3402 error ("Attempt to split unsplittable frame");
|
|
|
3403
|
|
|
3404 check_min_window_sizes ();
|
|
|
3405
|
|
|
3406 if (NILP (horflag))
|
|
|
3407 {
|
|
|
3408 if (size < window_min_height)
|
|
|
3409 error ("Window height %d too small (after splitting)", size);
|
|
|
3410 if (size + window_min_height > window_char_height (o, 1))
|
|
185
|
3411 error ("Window height %d too small (after splitting)",
|
|
0
|
3412 window_char_height (o, 1) - size);
|
|
|
3413 if (NILP (o->parent)
|
|
|
3414 || NILP (XWINDOW (o->parent)->vchild))
|
|
|
3415 {
|
|
|
3416 make_dummy_parent (window);
|
|
|
3417 reset_face_cachels (XWINDOW (window));
|
|
|
3418 new = o->parent;
|
|
|
3419 XWINDOW (new)->vchild = window;
|
|
|
3420 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3421 }
|
|
|
3422 }
|
|
|
3423 else
|
|
|
3424 {
|
|
|
3425 if (size < window_min_width)
|
|
|
3426 error ("Window width %d too small (after splitting)", size);
|
|
|
3427 if (size + window_min_width > window_char_width (o, 0))
|
|
185
|
3428 error ("Window width %d too small (after splitting)",
|
|
0
|
3429 window_char_width (o, 0) - size);
|
|
|
3430 if (NILP (o->parent)
|
|
|
3431 || NILP (XWINDOW (o->parent)->hchild))
|
|
|
3432 {
|
|
|
3433 make_dummy_parent (window);
|
|
|
3434 reset_face_cachels (XWINDOW (window));
|
|
|
3435 new = o->parent;
|
|
|
3436 XWINDOW (new)->hchild = window;
|
|
|
3437 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3438 }
|
|
|
3439 }
|
|
|
3440
|
|
|
3441 /* Now we know that window's parent is a vertical combination
|
|
|
3442 if we are dividing vertically, or a horizontal combination
|
|
|
3443 if we are making side-by-side windows */
|
|
|
3444
|
|
|
3445 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
3446 new = allocate_window ();
|
|
|
3447 p = XWINDOW (new);
|
|
|
3448
|
|
|
3449 p->frame = o->frame;
|
|
|
3450 p->next = o->next;
|
|
|
3451 if (!NILP (p->next))
|
|
|
3452 XWINDOW (p->next)->prev = new;
|
|
|
3453 p->prev = window;
|
|
|
3454 o->next = new;
|
|
|
3455 p->parent = o->parent;
|
|
|
3456 p->buffer = Qt;
|
|
|
3457
|
|
|
3458 reset_face_cachels (p);
|
|
|
3459 reset_glyph_cachels (p);
|
|
185
|
3460
|
|
0
|
3461
|
|
|
3462 /* Apportion the available frame space among the two new windows */
|
|
|
3463
|
|
|
3464 if (!NILP (horflag))
|
|
|
3465 {
|
|
|
3466 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
3467 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
3468 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize;
|
|
|
3469 WINDOW_WIDTH (o) = psize;
|
|
|
3470 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize;
|
|
|
3471 }
|
|
|
3472 else
|
|
|
3473 {
|
|
|
3474 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
3475 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
3476 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize;
|
|
|
3477 WINDOW_HEIGHT (o) = psize;
|
|
|
3478 WINDOW_TOP (p) = WINDOW_TOP (o) + psize;
|
|
|
3479 }
|
|
|
3480
|
|
|
3481 XFRAME (p->frame)->mirror_dirty = 1;
|
|
|
3482 /* do this last (after the window is completely initialized and
|
|
|
3483 the mirror-dirty flag is set) so that specifier recomputation
|
|
|
3484 caused as a result of this will work properly and not abort. */
|
|
|
3485 Fset_window_buffer (new, o->buffer);
|
|
|
3486 return new;
|
|
|
3487 }
|
|
|
3488
|
|
|
3489
|
|
20
|
3490 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /*
|
|
380
|
3491 Make the selected window N lines bigger.
|
|
|
3492 From program, optional second arg SIDE non-nil means grow sideways N columns,
|
|
|
3493 and optional third arg WINDOW specifies the window to change instead of the
|
|
0
|
3494 selected window.
|
|
20
|
3495 */
|
|
|
3496 (n, side, window))
|
|
0
|
3497 {
|
|
|
3498 struct window *w = decode_window (window);
|
|
|
3499 CHECK_INT (n);
|
|
263
|
3500 change_window_height (w, XINT (n), !NILP (side), /* inpixels */ 0);
|
|
|
3501 return Qnil;
|
|
|
3502 }
|
|
|
3503
|
|
|
3504 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /*
|
|
380
|
3505 Make the selected window N pixels bigger.
|
|
|
3506 From program, optional second arg SIDE non-nil means grow sideways N pixels,
|
|
|
3507 and optional third arg WINDOW specifies the window to change instead of the
|
|
263
|
3508 selected window.
|
|
|
3509 */
|
|
|
3510 (n, side, window))
|
|
|
3511 {
|
|
|
3512 struct window *w = decode_window (window);
|
|
|
3513 CHECK_INT (n);
|
|
|
3514 change_window_height (w, XINT (n), !NILP (side), /* inpixels */ 1);
|
|
0
|
3515 return Qnil;
|
|
|
3516 }
|
|
|
3517
|
|
20
|
3518 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /*
|
|
380
|
3519 Make the selected window N lines smaller.
|
|
|
3520 From program, optional second arg SIDE non-nil means shrink sideways N columns,
|
|
|
3521 and optional third arg WINDOW specifies the window to change instead of the
|
|
0
|
3522 selected window.
|
|
20
|
3523 */
|
|
|
3524 (n, side, window))
|
|
0
|
3525 {
|
|
|
3526 CHECK_INT (n);
|
|
263
|
3527 change_window_height (decode_window (window), -XINT (n), !NILP (side),
|
|
|
3528 /* inpixels */ 0);
|
|
|
3529 return Qnil;
|
|
|
3530 }
|
|
|
3531
|
|
|
3532 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /*
|
|
380
|
3533 Make the selected window N pixels smaller.
|
|
|
3534 From program, optional second arg SIDE non-nil means shrink sideways N pixels,
|
|
|
3535 and optional third arg WINDOW specifies the window to change instead of the
|
|
263
|
3536 selected window.
|
|
|
3537 */
|
|
|
3538 (n, side, window))
|
|
|
3539 {
|
|
|
3540 CHECK_INT (n);
|
|
|
3541 change_window_height (decode_window (window), -XINT (n), !NILP (side),
|
|
|
3542 /* inpixels */ 1);
|
|
0
|
3543 return Qnil;
|
|
|
3544 }
|
|
|
3545
|
|
|
3546 static int
|
|
|
3547 window_pixel_height (Lisp_Object window)
|
|
|
3548 {
|
|
149
|
3549 return WINDOW_HEIGHT (XWINDOW (window));
|
|
0
|
3550 }
|
|
|
3551
|
|
|
3552 static int
|
|
|
3553 window_pixel_height_to_char_height (struct window *w, int pixel_height,
|
|
|
3554 int include_gutters_p)
|
|
|
3555 {
|
|
|
3556 int avail_height;
|
|
|
3557 int defheight, defwidth;
|
|
|
3558 int char_height;
|
|
|
3559 Lisp_Object window;
|
|
185
|
3560
|
|
0
|
3561 XSETWINDOW (window, w);
|
|
185
|
3562
|
|
0
|
3563 avail_height = (pixel_height -
|
|
|
3564 (include_gutters_p ? 0 :
|
|
|
3565 window_top_gutter_height (w) +
|
|
|
3566 window_bottom_gutter_height (w)));
|
|
185
|
3567
|
|
0
|
3568 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3569
|
|
|
3570 char_height = avail_height / defheight;
|
|
|
3571
|
|
|
3572 /* It's the calling function's responsibility to check these values
|
|
|
3573 and make sure they're not out of range.
|
|
|
3574
|
|
|
3575 #### We need to go through the calling functions and actually
|
|
|
3576 do this. */
|
|
272
|
3577 return max (0, char_height);
|
|
0
|
3578 }
|
|
|
3579
|
|
|
3580 static int
|
|
|
3581 window_char_height_to_pixel_height (struct window *w, int char_height,
|
|
|
3582 int include_gutters_p)
|
|
|
3583 {
|
|
|
3584 int avail_height;
|
|
|
3585 int defheight, defwidth;
|
|
|
3586 int pixel_height;
|
|
|
3587
|
|
|
3588 Lisp_Object window;
|
|
185
|
3589
|
|
0
|
3590 XSETWINDOW (window, w);
|
|
185
|
3591
|
|
0
|
3592 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3593
|
|
|
3594 avail_height = char_height * defheight;
|
|
|
3595 pixel_height = (avail_height +
|
|
|
3596 (include_gutters_p ? 0 :
|
|
|
3597 window_top_gutter_height (w) +
|
|
|
3598 window_bottom_gutter_height (w)));
|
|
|
3599
|
|
|
3600 /* It's the calling function's responsibility to check these values
|
|
|
3601 and make sure they're not out of range.
|
|
|
3602
|
|
|
3603 #### We need to go through the calling functions and actually
|
|
|
3604 do this. */
|
|
272
|
3605 return max (0, pixel_height);
|
|
0
|
3606 }
|
|
|
3607
|
|
|
3608 /* Return number of default lines of text can fit in the window W.
|
|
|
3609 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus
|
|
|
3610 horizontal scrollbar) in the space that is used for the calculation.
|
|
|
3611 */
|
|
|
3612 int
|
|
|
3613 window_char_height (struct window *w, int include_gutters_p)
|
|
|
3614 {
|
|
|
3615 return window_pixel_height_to_char_height (w, WINDOW_HEIGHT (w),
|
|
|
3616 include_gutters_p);
|
|
|
3617 }
|
|
|
3618
|
|
|
3619 /*
|
|
|
3620 * Return number of lines currently displayed in window w. If
|
|
|
3621 * end-of-buffer is displayed then the area below end-of-buffer is assume
|
|
|
3622 * to be blank lines of default height.
|
|
|
3623 * Does not include the modeline.
|
|
|
3624 */
|
|
|
3625 int
|
|
|
3626 window_displayed_height (struct window *w)
|
|
|
3627 {
|
|
|
3628 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3629 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
3630 int num_lines;
|
|
|
3631 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)
|
|
|
3632 ? -1
|
|
|
3633 : w->window_end_pos[CURRENT_DISP]);
|
|
|
3634
|
|
|
3635 if (!Dynarr_length (dla))
|
|
|
3636 return window_char_height (w, 0);
|
|
|
3637
|
|
|
3638 num_lines = Dynarr_length (dla);
|
|
|
3639
|
|
|
3640 /* #### Document and assert somewhere that w->window_end_pos == -1
|
|
|
3641 indicates that end-of-buffer is being displayed. */
|
|
|
3642 if (end_pos == -1)
|
|
|
3643 {
|
|
|
3644 struct display_line *dl = Dynarr_atp (dla, 0);
|
|
|
3645 int ypos1 = dl->ypos + dl->descent;
|
|
|
3646 int ypos2 = WINDOW_TEXT_BOTTOM (w);
|
|
|
3647 Lisp_Object window;
|
|
|
3648 int defheight, defwidth;
|
|
|
3649
|
|
|
3650 XSETWINDOW (window, w);
|
|
|
3651
|
|
|
3652 if (dl->modeline)
|
|
|
3653 {
|
|
|
3654 num_lines--;
|
|
|
3655
|
|
|
3656 if (Dynarr_length (dla) == 1)
|
|
|
3657 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
3658 else
|
|
|
3659 {
|
|
|
3660 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
3661 /* If this line is clipped then we know that there is no
|
|
|
3662 blank room between eob and the modeline. If we are
|
|
|
3663 scrolling on clipped lines just know off the clipped
|
|
|
3664 line and return .*/
|
|
|
3665 if (scroll_on_clipped_lines && dl->clip)
|
|
149
|
3666 return num_lines - 1;
|
|
0
|
3667 ypos1 = dl->ypos + dl->descent - dl->clip;
|
|
|
3668 }
|
|
|
3669 }
|
|
|
3670
|
|
|
3671 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3672 /* #### This probably needs to know about the clipping area once a
|
|
|
3673 final definition is decided on. */
|
|
|
3674 num_lines += ((ypos2 - ypos1) / defheight);
|
|
|
3675 }
|
|
|
3676 else
|
|
|
3677 {
|
|
|
3678 if (num_lines > 1 && Dynarr_atp (dla, 0)->modeline)
|
|
|
3679 num_lines--;
|
|
|
3680
|
|
|
3681 if (scroll_on_clipped_lines
|
|
|
3682 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip)
|
|
|
3683 num_lines--;
|
|
|
3684 }
|
|
|
3685
|
|
|
3686 return num_lines;
|
|
|
3687 }
|
|
|
3688
|
|
|
3689 static int
|
|
|
3690 window_pixel_width (Lisp_Object window)
|
|
|
3691 {
|
|
149
|
3692 return WINDOW_WIDTH (XWINDOW (window));
|
|
0
|
3693 }
|
|
|
3694
|
|
|
3695 static int
|
|
|
3696 window_pixel_width_to_char_width (struct window *w, int pixel_width,
|
|
|
3697 int include_margins_p)
|
|
|
3698 {
|
|
|
3699 int avail_width;
|
|
|
3700 int char_width;
|
|
|
3701 int defheight, defwidth;
|
|
|
3702 Lisp_Object window;
|
|
185
|
3703
|
|
0
|
3704 XSETWINDOW (window, w);
|
|
185
|
3705
|
|
0
|
3706 avail_width = (pixel_width -
|
|
|
3707 window_left_gutter_width (w, 0) -
|
|
|
3708 window_right_gutter_width (w, 0) -
|
|
|
3709 (include_margins_p ? 0 : window_left_margin_width (w)) -
|
|
|
3710 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
185
|
3711
|
|
0
|
3712 default_face_height_and_width (window, &defheight, &defwidth);
|
|
185
|
3713
|
|
0
|
3714 char_width = (avail_width / defwidth);
|
|
|
3715
|
|
|
3716 /* It's the calling function's responsibility to check these values
|
|
|
3717 and make sure they're not out of range.
|
|
|
3718
|
|
|
3719 #### We need to go through the calling functions and actually
|
|
|
3720 do this. */
|
|
272
|
3721 return max (0, char_width);
|
|
0
|
3722 }
|
|
|
3723
|
|
|
3724 static int
|
|
|
3725 window_char_width_to_pixel_width (struct window *w, int char_width,
|
|
|
3726 int include_margins_p)
|
|
|
3727 {
|
|
|
3728 int avail_width;
|
|
|
3729 int pixel_width;
|
|
|
3730 int defheight, defwidth;
|
|
|
3731 Lisp_Object window;
|
|
|
3732
|
|
|
3733 XSETWINDOW (window, w);
|
|
|
3734
|
|
|
3735 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3736
|
|
|
3737 avail_width = char_width * defwidth;
|
|
|
3738 pixel_width = (avail_width +
|
|
|
3739 window_left_gutter_width (w, 0) +
|
|
|
3740 window_right_gutter_width (w, 0) +
|
|
|
3741 (include_margins_p ? 0 : window_left_margin_width (w)) +
|
|
|
3742 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
|
3743
|
|
|
3744 /* It's the calling function's responsibility to check these values
|
|
|
3745 and make sure they're not out of range.
|
|
|
3746
|
|
|
3747 #### We need to go through the calling functions and actually
|
|
|
3748 do this. */
|
|
272
|
3749 return max (0, pixel_width);
|
|
0
|
3750 }
|
|
|
3751
|
|
|
3752 /* This returns the usable space which doesn't include space needed by
|
|
|
3753 scrollbars or divider lines. */
|
|
|
3754 int
|
|
|
3755 window_char_width (struct window *w, int include_margins_p)
|
|
|
3756 {
|
|
|
3757 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w),
|
|
|
3758 include_margins_p);
|
|
|
3759 }
|
|
|
3760
|
|
|
3761 #define MINSIZE(w) \
|
|
|
3762 (widthflag \
|
|
|
3763 ? window_min_width * defwidth \
|
|
|
3764 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)))
|
|
|
3765
|
|
|
3766 #define CURBEG(w) \
|
|
|
3767 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w))
|
|
|
3768
|
|
|
3769 #define CURSIZE(w) \
|
|
|
3770 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w))
|
|
|
3771
|
|
|
3772 #define CURCHARSIZE(w) \
|
|
|
3773 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1))
|
|
|
3774
|
|
|
3775 #define MINCHARSIZE(window) \
|
|
|
3776 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \
|
|
|
3777 ? 1 : window_min_height)
|
|
|
3778
|
|
|
3779 /* Unlike set_window_pixheight, this function
|
|
|
3780 also changes the heights of the siblings so as to
|
|
|
3781 keep everything consistent. */
|
|
|
3782
|
|
|
3783 static void
|
|
263
|
3784 change_window_height (struct window *win, int delta, int widthflag,
|
|
|
3785 int inpixels)
|
|
0
|
3786 {
|
|
|
3787 Lisp_Object parent;
|
|
272
|
3788 Lisp_Object window;
|
|
0
|
3789 struct window *w;
|
|
|
3790 struct frame *f;
|
|
|
3791 int *sizep;
|
|
|
3792 int (*sizefun) (Lisp_Object) = (widthflag
|
|
|
3793 ? window_pixel_width
|
|
|
3794 : window_pixel_height);
|
|
|
3795 void (*setsizefun) (Lisp_Object, int, int) = (widthflag
|
|
|
3796 ? set_window_pixwidth
|
|
|
3797 : set_window_pixheight);
|
|
|
3798 int dim;
|
|
|
3799 int defheight, defwidth;
|
|
|
3800
|
|
|
3801 if (delta == 0)
|
|
|
3802 return;
|
|
|
3803
|
|
|
3804 check_min_window_sizes ();
|
|
|
3805
|
|
|
3806 XSETWINDOW (window, win);
|
|
|
3807 f = XFRAME (win->frame);
|
|
|
3808 if (EQ (window, FRAME_ROOT_WINDOW (f)))
|
|
|
3809 error ("Won't change only window");
|
|
|
3810
|
|
|
3811 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
3812 functions should be called. */
|
|
|
3813 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3814
|
|
|
3815 while (1)
|
|
|
3816 {
|
|
|
3817 w = XWINDOW (window);
|
|
|
3818 parent = w->parent;
|
|
|
3819 if (NILP (parent))
|
|
|
3820 {
|
|
|
3821 if (widthflag)
|
|
|
3822 error ("No other window to side of this one");
|
|
|
3823 break;
|
|
|
3824 }
|
|
|
3825 if (widthflag
|
|
|
3826 ? !NILP (XWINDOW (parent)->hchild)
|
|
|
3827 : !NILP (XWINDOW (parent)->vchild))
|
|
|
3828 break;
|
|
|
3829 window = parent;
|
|
|
3830 }
|
|
|
3831
|
|
|
3832 sizep = &CURSIZE (w);
|
|
|
3833 dim = CURCHARSIZE (w);
|
|
|
3834
|
|
263
|
3835 if ((inpixels && (*sizep + delta) < MINSIZE (window)) ||
|
|
|
3836 (!inpixels && (dim + delta) < MINCHARSIZE (window)))
|
|
0
|
3837 {
|
|
|
3838 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
3839 return;
|
|
|
3840 else if (!NILP (parent))
|
|
|
3841 {
|
|
|
3842 Fdelete_window (window, Qnil);
|
|
|
3843 return;
|
|
|
3844 }
|
|
|
3845 }
|
|
|
3846
|
|
263
|
3847 if (!inpixels)
|
|
|
3848 delta *= (widthflag ? defwidth : defheight);
|
|
0
|
3849
|
|
|
3850 {
|
|
|
3851 int maxdelta;
|
|
|
3852
|
|
|
3853 maxdelta = ((!NILP (parent))
|
|
|
3854 ? (*sizefun) (parent) - *sizep
|
|
|
3855 : ((!NILP (w->next))
|
|
|
3856 ? (*sizefun) (w->next) - MINSIZE (w->next)
|
|
|
3857 : ((!NILP (w->prev))
|
|
|
3858 ? (*sizefun) (w->prev) - MINSIZE (w->prev)
|
|
185
|
3859 /* This is a frame with only one window,
|
|
0
|
3860 a minibuffer-only or a minibufferless frame. */
|
|
|
3861 : (delta = 0))));
|
|
|
3862
|
|
|
3863 if (delta > maxdelta)
|
|
|
3864 /* This case traps trying to make the minibuffer
|
|
|
3865 the full frame, or make the only window aside from the
|
|
|
3866 minibuffer the full frame. */
|
|
|
3867 delta = maxdelta;
|
|
|
3868
|
|
|
3869 if (delta == 0)
|
|
|
3870 return;
|
|
|
3871
|
|
|
3872 #if 0 /* FSFmacs */
|
|
|
3873 /* #### Chuck: is this correct? */
|
|
|
3874 if (*sizep + delta < MINSIZE (window))
|
|
|
3875 {
|
|
|
3876 Fdelete_window (window);
|
|
|
3877 return;
|
|
|
3878 }
|
|
|
3879 #endif
|
|
|
3880 }
|
|
|
3881
|
|
|
3882 if (!NILP (w->next) &&
|
|
|
3883 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next))
|
|
|
3884 {
|
|
|
3885 CURBEG (XWINDOW (w->next)) += delta;
|
|
|
3886 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0);
|
|
|
3887 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
3888 }
|
|
|
3889 else if (!NILP (w->prev) &&
|
|
|
3890 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev))
|
|
|
3891 {
|
|
|
3892 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0);
|
|
|
3893 CURBEG (w) -= delta;
|
|
|
3894 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
3895 }
|
|
|
3896 else
|
|
|
3897 {
|
|
|
3898 int delta1;
|
|
|
3899 int opht = (*sizefun) (parent);
|
|
|
3900
|
|
|
3901 /* If trying to grow this window to or beyond size of the parent,
|
|
|
3902 make delta1 so big that, on shrinking back down,
|
|
|
3903 all the siblings end up with less than one line and are deleted. */
|
|
|
3904 if (opht <= *sizep + delta)
|
|
|
3905 delta1 = opht * opht * 2;
|
|
|
3906 /* Otherwise, make delta1 just right so that if we add delta1
|
|
|
3907 lines to this window and to the parent, and then shrink
|
|
|
3908 the parent back to its original size, the new proportional
|
|
|
3909 size of this window will increase by delta. */
|
|
|
3910 else
|
|
|
3911 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100);
|
|
|
3912
|
|
|
3913 /* Add delta1 lines or columns to this window, and to the parent,
|
|
|
3914 keeping things consistent while not affecting siblings. */
|
|
|
3915 CURSIZE (XWINDOW (parent)) = opht + delta1;
|
|
|
3916 (*setsizefun) (window, *sizep + delta1, 0);
|
|
|
3917
|
|
|
3918 /* Squeeze out delta1 lines or columns from our parent,
|
|
380
|
3919 shrinking this window and siblings proportionately.
|
|
0
|
3920 This brings parent back to correct size.
|
|
|
3921 Delta1 was calculated so this makes this window the desired size,
|
|
|
3922 taking it all out of the siblings. */
|
|
|
3923 (*setsizefun) (parent, opht, 0);
|
|
|
3924 }
|
|
|
3925
|
|
|
3926 SET_LAST_MODIFIED (w, 0);
|
|
|
3927 SET_LAST_FACECHANGE (w);
|
|
|
3928 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
3929 }
|
|
|
3930 #undef MINSIZE
|
|
|
3931 #undef CURBEG
|
|
|
3932 #undef CURSIZE
|
|
|
3933 #undef CURCHARSIZE
|
|
|
3934 #undef MINCHARSIZE
|
|
|
3935
|
|
|
3936
|
|
|
3937
|
|
|
3938 /* Scroll contents of window WINDOW up N lines. */
|
|
|
3939 void
|
|
|
3940 window_scroll (Lisp_Object window, Lisp_Object n, int direction,
|
|
|
3941 Error_behavior errb)
|
|
|
3942 {
|
|
|
3943 struct window *w = XWINDOW (window);
|
|
|
3944 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3945 int selected = EQ (window, Fselected_window (Qnil));
|
|
|
3946 int value = 0;
|
|
|
3947 Lisp_Object point, tem;
|
|
|
3948
|
|
|
3949 if (selected)
|
|
|
3950 point = make_int (BUF_PT (b));
|
|
|
3951 else
|
|
|
3952 {
|
|
|
3953 Bufpos pos = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
3954
|
|
|
3955 if (pos < BUF_BEGV (b))
|
|
|
3956 pos = BUF_BEGV (b);
|
|
|
3957 else if (pos > BUF_ZV (b))
|
|
|
3958 pos = BUF_ZV (b);
|
|
|
3959
|
|
|
3960 point = make_int (pos);
|
|
|
3961 }
|
|
|
3962
|
|
|
3963 /* Always set force_start so that redisplay_window will run
|
|
380
|
3964 the window-scroll-functions. */
|
|
0
|
3965 w->force_start = 1;
|
|
|
3966
|
|
|
3967 /* #### When the fuck does this happen? I'm so glad that history has
|
|
|
3968 completely documented the behavior of the scrolling functions under
|
|
|
3969 all circumstances. */
|
|
|
3970 tem = Fpos_visible_in_window_p (point, window);
|
|
|
3971 if (NILP (tem))
|
|
|
3972 {
|
|
288
|
3973 Fvertical_motion (make_int (-window_char_height (w, 0) / 2),
|
|
|
3974 window, Qnil);
|
|
0
|
3975 Fset_marker (w->start[CURRENT_DISP], point, w->buffer);
|
|
|
3976 w->start_at_line_beg = beginning_of_line_p (b, XINT (point));
|
|
|
3977 MARK_WINDOWS_CHANGED (w);
|
|
|
3978 }
|
|
|
3979
|
|
|
3980 if (!NILP (n))
|
|
|
3981 {
|
|
|
3982 if (EQ (n, Qminus))
|
|
|
3983 direction *= -1;
|
|
|
3984 else
|
|
|
3985 {
|
|
|
3986 n = Fprefix_numeric_value (n);
|
|
|
3987 value = XINT (n) * direction;
|
|
|
3988
|
|
|
3989 if (!value)
|
|
|
3990 return; /* someone just made a pointless call */
|
|
|
3991 }
|
|
|
3992 }
|
|
|
3993
|
|
|
3994 /* If the user didn't specify how far to scroll then we have to figure it
|
|
|
3995 out by ourselves. */
|
|
|
3996 if (NILP (n) || EQ (n, Qminus))
|
|
|
3997 {
|
|
|
3998 /* Going forwards is easy. If that is what we are doing then just
|
|
|
3999 set value and the section which handles the user specifying a
|
|
|
4000 positive value will work. */
|
|
|
4001 if (direction == 1)
|
|
|
4002 {
|
|
|
4003 value = window_displayed_height (w) - next_screen_context_lines;
|
|
|
4004 value = (value < 1 ? 1 : value);
|
|
|
4005 }
|
|
|
4006
|
|
|
4007 /* Going backwards is hard. We can't use the same loop used if the
|
|
|
4008 user specified a negative value because we care about
|
|
|
4009 next_screen_context_lines. In a variable height world you don't
|
|
|
4010 know how many lines above you can actually be displayed and still
|
|
|
4011 have the context lines appear. So we leave value set to 0 and add
|
|
|
4012 a separate section to deal with this. */
|
|
|
4013
|
|
|
4014 }
|
|
|
4015
|
|
|
4016 if (direction == 1 && !value)
|
|
|
4017 {
|
|
|
4018 return;
|
|
|
4019 }
|
|
|
4020 else if (value > 0)
|
|
|
4021 {
|
|
|
4022 int vtarget;
|
|
|
4023 Bufpos startp, old_start;
|
|
|
4024
|
|
|
4025 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4026 startp = vmotion (w, old_start, value, &vtarget);
|
|
|
4027
|
|
|
4028 if (vtarget < value &&
|
|
|
4029 (w->window_end_pos[CURRENT_DISP] == -1
|
|
|
4030 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b))))
|
|
|
4031 {
|
|
|
4032 maybe_signal_error (Qend_of_buffer, Qnil, Qwindow, errb);
|
|
|
4033 return;
|
|
|
4034 }
|
|
|
4035 else
|
|
|
4036 {
|
|
|
4037 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4038 w->buffer);
|
|
|
4039 w->force_start = 1;
|
|
|
4040 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4041 MARK_WINDOWS_CHANGED (w);
|
|
|
4042
|
|
|
4043 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4044 {
|
|
|
4045 if (selected)
|
|
|
4046 BUF_SET_PT (b, startp);
|
|
|
4047 else
|
|
|
4048 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4049 make_int (startp),
|
|
|
4050 w->buffer);
|
|
|
4051 }
|
|
|
4052 }
|
|
|
4053 }
|
|
|
4054 else if (value < 0)
|
|
|
4055 {
|
|
|
4056 int vtarget;
|
|
|
4057 Bufpos startp, old_start;
|
|
|
4058
|
|
|
4059 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4060 startp = vmotion (w, old_start, value, &vtarget);
|
|
|
4061
|
|
|
4062 if (vtarget > value
|
|
|
4063 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4064 {
|
|
|
4065 maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
|
4066 return;
|
|
|
4067 }
|
|
|
4068 else
|
|
|
4069 {
|
|
|
4070 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4071 w->buffer);
|
|
|
4072 w->force_start = 1;
|
|
|
4073 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4074 MARK_WINDOWS_CHANGED (w);
|
|
|
4075
|
|
|
4076 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4077 {
|
|
|
4078 Bufpos new_point;
|
|
|
4079
|
|
|
4080 if (MINI_WINDOW_P (w))
|
|
|
4081 new_point = startp;
|
|
|
4082 else
|
|
|
4083 new_point = start_of_last_line (w, startp);
|
|
|
4084
|
|
|
4085 if (selected)
|
|
|
4086 BUF_SET_PT (b, new_point);
|
|
|
4087 else
|
|
|
4088 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4089 make_int (new_point),
|
|
|
4090 w->buffer);
|
|
|
4091 }
|
|
|
4092 }
|
|
|
4093 }
|
|
|
4094 else /* value == 0 && direction == -1 */
|
|
|
4095 {
|
|
|
4096 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4097 {
|
|
|
4098 maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
|
4099 return;
|
|
|
4100 }
|
|
|
4101 else
|
|
|
4102 {
|
|
|
4103 int vtarget;
|
|
|
4104 int movement = next_screen_context_lines - 1;
|
|
|
4105 Bufpos old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
4106 Bufpos bottom = vmotion (w, old_startp, movement, &vtarget);
|
|
|
4107 Bufpos startp =
|
|
|
4108 start_with_point_on_display_line (w, bottom,
|
|
|
4109 -1 - (movement - vtarget));
|
|
|
4110
|
|
|
4111 if (startp >= old_startp)
|
|
|
4112 startp = vmotion (w, old_startp, -1, NULL);
|
|
|
4113
|
|
|
4114 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4115 w->buffer);
|
|
|
4116 w->force_start = 1;
|
|
|
4117 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4118 MARK_WINDOWS_CHANGED (w);
|
|
|
4119
|
|
|
4120 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4121 {
|
|
|
4122 Bufpos new_point = start_of_last_line (w, startp);
|
|
|
4123
|
|
|
4124 if (selected)
|
|
|
4125 BUF_SET_PT (b, new_point);
|
|
|
4126 else
|
|
|
4127 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4128 make_int (new_point),
|
|
|
4129 w->buffer);
|
|
|
4130 }
|
|
|
4131 }
|
|
|
4132 }
|
|
|
4133
|
|
|
4134 }
|
|
|
4135
|
|
20
|
4136 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /*
|
|
380
|
4137 Scroll text of current window upward N lines; or near full screen if no arg.
|
|
0
|
4138 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
380
|
4139 Negative N means scroll downward.
|
|
|
4140 When calling from a program, supply an integer as argument or nil.
|
|
265
|
4141 On attempt to scroll past end of buffer, `end-of-buffer' is signaled.
|
|
|
4142 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is
|
|
|
4143 signaled.
|
|
20
|
4144 */
|
|
|
4145 (n))
|
|
0
|
4146 {
|
|
265
|
4147 window_scroll (Fselected_window (Qnil), n, 1, ERROR_ME);
|
|
0
|
4148 return Qnil;
|
|
|
4149 }
|
|
|
4150
|
|
20
|
4151 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /*
|
|
380
|
4152 Scroll text of current window downward N lines; or near full screen if no arg.
|
|
0
|
4153 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
380
|
4154 Negative N means scroll upward.
|
|
0
|
4155 When calling from a program, supply a number as argument or nil.
|
|
265
|
4156 On attempt to scroll past end of buffer, `end-of-buffer' is signaled.
|
|
|
4157 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is
|
|
|
4158 signaled.
|
|
20
|
4159 */
|
|
|
4160 (n))
|
|
0
|
4161 {
|
|
265
|
4162 window_scroll (Fselected_window (Qnil), n, -1, ERROR_ME);
|
|
0
|
4163 return Qnil;
|
|
|
4164 }
|
|
|
4165
|
|
20
|
4166 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /*
|
|
185
|
4167 Return the other window for "other window scroll" commands.
|
|
0
|
4168 If in the minibuffer, `minibuffer-scroll-window' if non-nil
|
|
|
4169 specifies the window.
|
|
|
4170 If `other-window-scroll-buffer' is non-nil, a window
|
|
|
4171 showing that buffer is used.
|
|
20
|
4172 */
|
|
|
4173 ())
|
|
0
|
4174 {
|
|
|
4175 Lisp_Object window;
|
|
|
4176 Lisp_Object selected_window = Fselected_window (Qnil);
|
|
|
4177
|
|
|
4178 if (MINI_WINDOW_P (XWINDOW (selected_window))
|
|
274
|
4179 && !NILP (Vminibuffer_scroll_window))
|
|
|
4180 window = Vminibuffer_scroll_window;
|
|
0
|
4181 /* If buffer is specified, scroll that buffer. */
|
|
|
4182 else if (!NILP (Vother_window_scroll_buffer))
|
|
|
4183 {
|
|
|
4184 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil);
|
|
|
4185 if (NILP (window))
|
|
|
4186 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil);
|
|
|
4187 }
|
|
|
4188 else
|
|
|
4189 {
|
|
|
4190 /* Nothing specified; look for a neighboring window on the same
|
|
|
4191 frame. */
|
|
|
4192 window = Fnext_window (selected_window, Qnil, Qnil, Qnil);
|
|
|
4193
|
|
|
4194 if (EQ (window, selected_window))
|
|
|
4195 /* That didn't get us anywhere; look for a window on another
|
|
|
4196 visible frame. */
|
|
|
4197 do
|
|
|
4198 window = Fnext_window (window, Qnil, Qt, Qnil);
|
|
|
4199 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window))))
|
|
|
4200 && ! EQ (window, selected_window));
|
|
|
4201 }
|
|
|
4202
|
|
|
4203 CHECK_LIVE_WINDOW (window);
|
|
|
4204
|
|
|
4205 if (EQ (window, selected_window))
|
|
|
4206 error ("There is no other window");
|
|
|
4207
|
|
|
4208 return window;
|
|
|
4209 }
|
|
|
4210
|
|
20
|
4211 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /*
|
|
380
|
4212 Scroll next window upward N lines; or near full frame if no arg.
|
|
0
|
4213 The next window is the one below the current one; or the one at the top
|
|
380
|
4214 if the current one is at the bottom. Negative N means scroll downward.
|
|
0
|
4215 When calling from a program, supply a number as argument or nil.
|
|
|
4216
|
|
274
|
4217 If in the minibuffer, `minibuffer-scroll-window' if non-nil
|
|
0
|
4218 specifies the window to scroll.
|
|
|
4219 If `other-window-scroll-buffer' is non-nil, scroll the window
|
|
|
4220 showing that buffer, popping the buffer up if necessary.
|
|
20
|
4221 */
|
|
|
4222 (n))
|
|
0
|
4223 {
|
|
|
4224 window_scroll (Fother_window_for_scrolling (), n, 1, ERROR_ME);
|
|
|
4225 return Qnil;
|
|
|
4226 }
|
|
|
4227
|
|
20
|
4228 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /*
|
|
380
|
4229 Scroll selected window display N columns left.
|
|
|
4230 Default for N is window width minus 2.
|
|
20
|
4231 */
|
|
380
|
4232 (n))
|
|
0
|
4233 {
|
|
|
4234 Lisp_Object window = Fselected_window (Qnil);
|
|
|
4235 struct window *w = XWINDOW (window);
|
|
380
|
4236 int count = (NILP (n) ?
|
|
|
4237 window_char_width (w, 0) - 2 :
|
|
|
4238 XINT (Fprefix_numeric_value (n)));
|
|
|
4239
|
|
|
4240 return Fset_window_hscroll (window, make_int (w->hscroll + count));
|
|
0
|
4241 }
|
|
|
4242
|
|
20
|
4243 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /*
|
|
380
|
4244 Scroll selected window display N columns right.
|
|
|
4245 Default for N is window width minus 2.
|
|
20
|
4246 */
|
|
380
|
4247 (n))
|
|
0
|
4248 {
|
|
|
4249 Lisp_Object window = Fselected_window (Qnil);
|
|
|
4250 struct window *w = XWINDOW (window);
|
|
380
|
4251 int count = (NILP (n) ?
|
|
|
4252 window_char_width (w, 0) - 2 :
|
|
|
4253 XINT (Fprefix_numeric_value (n)));
|
|
|
4254
|
|
|
4255 return Fset_window_hscroll (window, make_int (w->hscroll - count));
|
|
0
|
4256 }
|
|
280
|
4257
|
|
|
4258 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /*
|
|
|
4259 Center point in WINDOW. With N, put point on line N.
|
|
0
|
4260 The desired position of point is always relative to the window.
|
|
|
4261 If WINDOW is nil, the selected window is used.
|
|
20
|
4262 */
|
|
|
4263 (n, window))
|
|
0
|
4264 {
|
|
280
|
4265 struct window *w = decode_window (window);
|
|
|
4266 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4267 Bufpos opoint = BUF_PT (b);
|
|
0
|
4268 Bufpos startp;
|
|
280
|
4269
|
|
|
4270 if (NILP (n))
|
|
|
4271 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w));
|
|
0
|
4272 else
|
|
|
4273 {
|
|
|
4274 n = Fprefix_numeric_value (n);
|
|
|
4275 CHECK_INT (n);
|
|
|
4276 startp = start_with_point_on_display_line (w, opoint, XINT (n));
|
|
|
4277 }
|
|
|
4278
|
|
|
4279 Fset_marker (w->start[CURRENT_DISP], make_int (startp), w->buffer);
|
|
185
|
4280
|
|
0
|
4281 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4282 w->force_start = 1;
|
|
|
4283 MARK_WINDOWS_CHANGED (w);
|
|
|
4284 return Qnil;
|
|
|
4285 }
|
|
280
|
4286
|
|
20
|
4287 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /*
|
|
0
|
4288 Position point relative to WINDOW.
|
|
|
4289 With no argument, position text at center of window.
|
|
|
4290 An argument specifies window line; zero means top of window,
|
|
|
4291 negative means relative to bottom of window.
|
|
|
4292 If WINDOW is nil, the selected window is used.
|
|
20
|
4293 */
|
|
|
4294 (arg, window))
|
|
0
|
4295 {
|
|
|
4296 struct window *w;
|
|
|
4297 struct buffer *b;
|
|
|
4298 int height;
|
|
|
4299 Bufpos start, new_point;
|
|
|
4300 int selected;
|
|
|
4301
|
|
280
|
4302 /* Don't use decode_window() because we need the new value of
|
|
|
4303 WINDOW. */
|
|
0
|
4304 if (NILP (window))
|
|
|
4305 window = Fselected_window (Qnil);
|
|
|
4306 else
|
|
371
|
4307 CHECK_WINDOW (window);
|
|
0
|
4308 w = XWINDOW (window);
|
|
|
4309 b = XBUFFER (w->buffer);
|
|
|
4310
|
|
|
4311 height = window_displayed_height (w);
|
|
|
4312 selected = EQ (window, Fselected_window (w->frame));
|
|
|
4313
|
|
|
4314 if (NILP (arg))
|
|
|
4315 {
|
|
|
4316 int retval;
|
|
|
4317
|
|
|
4318 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
4319 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b))
|
|
|
4320 {
|
|
|
4321 new_point = point_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4322
|
|
|
4323 if (selected)
|
|
|
4324 BUF_SET_PT (b, new_point);
|
|
|
4325 else
|
|
|
4326 Fset_window_point (window, make_int (new_point));
|
|
|
4327
|
|
|
4328 retval = line_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4329 }
|
|
|
4330 else
|
|
|
4331 {
|
|
|
4332 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4333 if (start < BUF_BEGV (b))
|
|
|
4334 start = BUF_BEGV (b);
|
|
|
4335 else if (start > BUF_ZV (b))
|
|
|
4336 start = BUF_ZV (b);
|
|
|
4337
|
|
|
4338 if (selected)
|
|
|
4339 new_point = BUF_PT (b);
|
|
|
4340 else
|
|
|
4341 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4342
|
|
|
4343 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4344
|
|
|
4345 if (selected)
|
|
|
4346 BUF_SET_PT (b, new_point);
|
|
|
4347 else
|
|
|
4348 Fset_window_point (window, make_int (new_point));
|
|
|
4349
|
|
|
4350 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4351 }
|
|
|
4352
|
|
149
|
4353 return make_int (retval);
|
|
0
|
4354 }
|
|
|
4355 else
|
|
|
4356 {
|
|
|
4357 /* #### Is this going to work right when at eob? */
|
|
|
4358 arg = Fprefix_numeric_value (arg);
|
|
|
4359 if (XINT (arg) < 0)
|
|
|
4360 XSETINT (arg, XINT (arg) + height);
|
|
|
4361 }
|
|
|
4362
|
|
|
4363 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4364 if (start < BUF_BEGV (b) || start > BUF_ZV (b))
|
|
|
4365 {
|
|
|
4366 if (selected)
|
|
|
4367 new_point = BUF_PT (b);
|
|
|
4368 else
|
|
|
4369 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4370
|
|
|
4371 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0);
|
|
|
4372
|
|
|
4373 if (selected)
|
|
|
4374 BUF_SET_PT (b, new_point);
|
|
|
4375 else
|
|
|
4376 Fset_window_point (window, make_int (new_point));
|
|
|
4377
|
|
|
4378 Fset_marker (w->start[CURRENT_DISP], make_int (new_point),
|
|
|
4379 w->buffer);
|
|
|
4380 w->start_at_line_beg = beginning_of_line_p (b, new_point);
|
|
|
4381 w->force_start = 1;
|
|
|
4382 }
|
|
|
4383 else
|
|
|
4384 {
|
|
|
4385 if (selected)
|
|
|
4386 BUF_SET_PT (b, start);
|
|
|
4387 else
|
|
|
4388 Fset_window_point (window, make_int (start));
|
|
|
4389 }
|
|
|
4390
|
|
|
4391 if (selected)
|
|
288
|
4392 return Fvertical_motion (arg, window, Qnil);
|
|
0
|
4393 else
|
|
|
4394 {
|
|
|
4395 int vpos;
|
|
|
4396 new_point = vmotion (XWINDOW (window),
|
|
|
4397 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
4398 XINT (arg), &vpos);
|
|
|
4399 Fset_window_point (window, make_int (new_point));
|
|
|
4400 return make_int (vpos);
|
|
|
4401 }
|
|
|
4402 }
|
|
|
4403
|
|
|
4404
|
|
|
4405 static int
|
|
|
4406 map_windows_1 (Lisp_Object window,
|
|
|
4407 int (*mapfun) (struct window *w, void *closure),
|
|
|
4408 void *closure)
|
|
|
4409 {
|
|
|
4410 for (; !NILP (window); window = XWINDOW (window)->next)
|
|
|
4411 {
|
|
272
|
4412 int retval;
|
|
0
|
4413 struct window *w = XWINDOW (window);
|
|
251
|
4414
|
|
0
|
4415 if (!NILP (w->vchild))
|
|
|
4416 retval = map_windows_1 (w->vchild, mapfun, closure);
|
|
|
4417 else if (!NILP (w->hchild))
|
|
|
4418 retval = map_windows_1 (w->hchild, mapfun, closure);
|
|
|
4419 else
|
|
|
4420 retval = (mapfun) (w, closure);
|
|
272
|
4421
|
|
0
|
4422 if (retval)
|
|
|
4423 return retval;
|
|
|
4424 }
|
|
|
4425
|
|
272
|
4426 return 0;
|
|
0
|
4427 }
|
|
|
4428
|
|
|
4429 /* Map MAPFUN over the windows in F. CLOSURE is passed to each
|
|
251
|
4430 invocation of MAPFUN. If any invocation of MAPFUN returns
|
|
|
4431 non-zero, the mapping is halted. Otherwise, map_windows() maps
|
|
|
4432 over all windows in F.
|
|
|
4433
|
|
380
|
4434 If MAPFUN creates or deletes windows, the behavior is undefined. */
|
|
251
|
4435
|
|
284
|
4436 int
|
|
0
|
4437 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure),
|
|
|
4438 void *closure)
|
|
|
4439 {
|
|
251
|
4440 if (f)
|
|
284
|
4441 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure);
|
|
251
|
4442 else
|
|
|
4443 {
|
|
|
4444 Lisp_Object frmcons, devcons, concons;
|
|
|
4445
|
|
|
4446 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons)
|
|
|
4447 {
|
|
284
|
4448 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))),
|
|
|
4449 mapfun, closure);
|
|
380
|
4450 if (v)
|
|
284
|
4451 return v;
|
|
251
|
4452 }
|
|
|
4453 }
|
|
286
|
4454
|
|
|
4455 return 0;
|
|
0
|
4456 }
|
|
|
4457
|
|
|
4458
|
|
|
4459 static void
|
|
|
4460 modeline_shadow_thickness_changed (Lisp_Object specifier, struct window *w,
|
|
|
4461 Lisp_Object oldval)
|
|
|
4462 {
|
|
|
4463 w->shadow_thickness_changed = 1;
|
|
|
4464 MARK_WINDOWS_CHANGED (w);
|
|
|
4465 }
|
|
|
4466
|
|
284
|
4467 static void
|
|
380
|
4468 vertical_divider_changed_in_window (Lisp_Object specifier,
|
|
|
4469 struct window *w,
|
|
284
|
4470 Lisp_Object oldval)
|
|
|
4471 {
|
|
|
4472 MARK_WINDOWS_CHANGED (w);
|
|
|
4473 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w)));
|
|
|
4474 }
|
|
|
4475
|
|
0
|
4476 /* also used in scrollbar.c */
|
|
|
4477 void
|
|
|
4478 some_window_value_changed (Lisp_Object specifier, struct window *w,
|
|
|
4479 Lisp_Object oldval)
|
|
|
4480 {
|
|
|
4481 MARK_WINDOWS_CHANGED (w);
|
|
|
4482 }
|
|
|
4483
|
|
|
4484 #ifdef MEMORY_USAGE_STATS
|
|
|
4485
|
|
|
4486 struct window_stats
|
|
|
4487 {
|
|
|
4488 int face;
|
|
|
4489 int glyph;
|
|
|
4490 #ifdef HAVE_SCROLLBARS
|
|
|
4491 int scrollbar;
|
|
|
4492 #endif
|
|
|
4493 int line_start;
|
|
|
4494 int other_redisplay;
|
|
|
4495 int other;
|
|
|
4496 };
|
|
|
4497
|
|
|
4498 static void
|
|
|
4499 compute_window_mirror_usage (struct window_mirror *mir,
|
|
|
4500 struct window_stats *stats,
|
|
|
4501 struct overhead_stats *ovstats)
|
|
|
4502 {
|
|
|
4503 if (!mir)
|
|
|
4504 return;
|
|
|
4505 stats->other += malloced_storage_size (mir, sizeof (struct window_mirror),
|
|
|
4506 ovstats);
|
|
|
4507 #ifdef HAVE_SCROLLBARS
|
|
|
4508 {
|
|
|
4509 struct device *d = XDEVICE (FRAME_DEVICE (mir->frame));
|
|
|
4510
|
|
|
4511 stats->scrollbar +=
|
|
|
4512 compute_scrollbar_instance_usage (d, mir->scrollbar_vertical_instance,
|
|
|
4513 ovstats);
|
|
|
4514 stats->scrollbar +=
|
|
|
4515 compute_scrollbar_instance_usage (d, mir->scrollbar_horizontal_instance,
|
|
|
4516 ovstats);
|
|
|
4517 }
|
|
149
|
4518 #endif /* HAVE_SCROLLBARS */
|
|
0
|
4519 stats->other_redisplay +=
|
|
|
4520 compute_display_line_dynarr_usage (mir->current_display_lines, ovstats);
|
|
|
4521 stats->other_redisplay +=
|
|
|
4522 compute_display_line_dynarr_usage (mir->desired_display_lines, ovstats);
|
|
|
4523 }
|
|
|
4524
|
|
|
4525 static void
|
|
|
4526 compute_window_usage (struct window *w, struct window_stats *stats,
|
|
|
4527 struct overhead_stats *ovstats)
|
|
|
4528 {
|
|
272
|
4529 xzero (*stats);
|
|
0
|
4530 stats->other += malloced_storage_size (w, sizeof (struct window), ovstats);
|
|
|
4531 stats->face += compute_face_cachel_usage (w->face_cachels, ovstats);
|
|
|
4532 stats->glyph += compute_glyph_cachel_usage (w->glyph_cachels, ovstats);
|
|
|
4533 stats->line_start +=
|
|
|
4534 compute_line_start_cache_dynarr_usage (w->line_start_cache, ovstats);
|
|
|
4535 compute_window_mirror_usage (find_window_mirror (w), stats, ovstats);
|
|
|
4536 }
|
|
|
4537
|
|
20
|
4538 DEFUN ("window-memory-usage", Fwindow_memory_usage, 1, 1, 0, /*
|
|
0
|
4539 Return stats about the memory usage of window WINDOW.
|
|
272
|
4540 The values returned are in the form of an alist of usage types and byte
|
|
0
|
4541 counts. The byte counts attempt to encompass all the memory used
|
|
|
4542 by the window (separate from the memory logically associated with a
|
|
|
4543 buffer or frame), including internal structures and any malloc()
|
|
|
4544 overhead associated with them. In practice, the byte counts are
|
|
|
4545 underestimated because certain memory usage is very hard to determine
|
|
272
|
4546 \(e.g. the amount of memory used inside the Xt library or inside the
|
|
0
|
4547 X server) and because there is other stuff that might logically
|
|
|
4548 be associated with a window, buffer, or frame (e.g. window configurations,
|
|
|
4549 glyphs) but should not obviously be included in the usage counts.
|
|
|
4550
|
|
|
4551 Multiple slices of the total memory usage may be returned, separated
|
|
|
4552 by a nil. Each slice represents a particular view of the memory, a
|
|
|
4553 particular way of partitioning it into groups. Within a slice, there
|
|
|
4554 is no overlap between the groups of memory, and each slice collectively
|
|
|
4555 represents all the memory concerned.
|
|
20
|
4556 */
|
|
|
4557 (window))
|
|
0
|
4558 {
|
|
|
4559 struct window_stats stats;
|
|
|
4560 struct overhead_stats ovstats;
|
|
272
|
4561 Lisp_Object val = Qnil;
|
|
0
|
4562
|
|
|
4563 CHECK_WINDOW (window); /* dead windows should be allowed, no? */
|
|
272
|
4564 xzero (ovstats);
|
|
0
|
4565 compute_window_usage (XWINDOW (window), &stats, &ovstats);
|
|
|
4566
|
|
272
|
4567 val = acons (Qface_cache, make_int (stats.face), val);
|
|
|
4568 val = acons (Qglyph_cache, make_int (stats.glyph), val);
|
|
0
|
4569 #ifdef HAVE_SCROLLBARS
|
|
272
|
4570 val = acons (Qscrollbar_instances, make_int (stats.scrollbar), val);
|
|
0
|
4571 #endif
|
|
272
|
4572 val = acons (Qline_start_cache, make_int (stats.line_start), val);
|
|
|
4573 val = acons (Qother_redisplay, make_int (stats.other_redisplay), val);
|
|
|
4574 val = acons (Qother, make_int (stats.other), val);
|
|
|
4575 val = Fcons (Qnil, val);
|
|
|
4576 val = acons (Qactually_requested, make_int (ovstats.was_requested), val);
|
|
|
4577 val = acons (Qmalloc_overhead, make_int (ovstats.malloc_overhead), val);
|
|
|
4578 val = acons (Qdynarr_overhead, make_int (ovstats.dynarr_overhead), val);
|
|
|
4579
|
|
|
4580 return Fnreverse (val);
|
|
0
|
4581 }
|
|
|
4582
|
|
|
4583 #endif /* MEMORY_USAGE_STATS */
|
|
|
4584
|
|
|
4585
|
|
|
4586 /************************************************************************/
|
|
|
4587 /* Window configurations */
|
|
|
4588 /************************************************************************/
|
|
|
4589
|
|
|
4590 /* #### This window configuration stuff has had serious bugs lurking in it
|
|
|
4591 for years; it would be a -huge- win if this was reimplemented in lisp.
|
|
|
4592 */
|
|
|
4593
|
|
|
4594 /* If you add anything to this structure make sure saved_window_equal
|
|
|
4595 knows about it. */
|
|
|
4596 struct saved_window
|
|
|
4597 {
|
|
|
4598 Lisp_Object window; /* window */
|
|
|
4599 Lisp_Object buffer; /* buffer */
|
|
|
4600 Lisp_Object start; /* copied marker */
|
|
|
4601 Lisp_Object pointm; /* copied marker */
|
|
|
4602 Lisp_Object sb_point; /* copied marker */
|
|
|
4603 Lisp_Object mark; /* copied marker */
|
|
|
4604 int pixel_left;
|
|
|
4605 int pixel_top;
|
|
|
4606 int pixel_width;
|
|
|
4607 int pixel_height;
|
|
|
4608 int hscroll;
|
|
257
|
4609 int modeline_hscroll;
|
|
0
|
4610 int parent_index; /* index into saved_windows */
|
|
|
4611 int prev_index; /* index into saved_windows */
|
|
|
4612 char start_at_line_beg; /* boolean */
|
|
284
|
4613
|
|
|
4614 #define WINDOW_SLOT_DECLARATION
|
|
|
4615 #define WINDOW_SLOT(slot, compare) Lisp_Object slot
|
|
|
4616 #include "winslots.h"
|
|
0
|
4617 };
|
|
|
4618
|
|
|
4619 /* If you add anything to this structure make sure window_config_equal
|
|
|
4620 knows about it. */
|
|
|
4621 struct window_config
|
|
|
4622 {
|
|
|
4623 struct lcrecord_header header;
|
|
371
|
4624 int frame_width;
|
|
|
4625 int frame_height;
|
|
0
|
4626 #if 0 /* FSFmacs */
|
|
|
4627 Lisp_Object selected_frame;
|
|
|
4628 #endif
|
|
|
4629 Lisp_Object current_window;
|
|
|
4630 Lisp_Object current_buffer;
|
|
274
|
4631 Lisp_Object minibuffer_scroll_window;
|
|
0
|
4632 Lisp_Object root_window;
|
|
|
4633 /* Record the values of window-min-width and window-min-height
|
|
|
4634 so that window sizes remain consistent with them. */
|
|
|
4635 int min_width, min_height;
|
|
|
4636 int saved_windows_count;
|
|
|
4637 /* Zero-sized arrays aren't ANSI C */
|
|
|
4638 struct saved_window saved_windows[1];
|
|
|
4639 };
|
|
272
|
4640
|
|
0
|
4641 #define SAVED_WINDOW_N(conf, n) (&((conf)->saved_windows[(n)]))
|
|
|
4642 #define XWINDOW_CONFIGURATION(x) XRECORD (x, window_configuration, struct window_config)
|
|
|
4643 #define XSETWINDOW_CONFIGURATION(x, p) XSETRECORD (x, p, window_configuration)
|
|
|
4644 #define WINDOW_CONFIGURATIONP(x) RECORDP (x, window_configuration)
|
|
|
4645 #define GC_WINDOW_CONFIGURATIONP(x) GC_RECORDP (x, window_configuration)
|
|
|
4646 #define CHECK_WINDOW_CONFIGURATION(x) CHECK_RECORD (x, window_configuration)
|
|
|
4647
|
|
|
4648 static Lisp_Object
|
|
|
4649 mark_window_config (Lisp_Object obj, void (*markobj) (Lisp_Object))
|
|
|
4650 {
|
|
|
4651 struct window_config *config = XWINDOW_CONFIGURATION (obj);
|
|
|
4652 int i;
|
|
380
|
4653 markobj (config->current_window);
|
|
|
4654 markobj (config->current_buffer);
|
|
|
4655 markobj (config->minibuffer_scroll_window);
|
|
|
4656 markobj (config->root_window);
|
|
217
|
4657
|
|
0
|
4658 for (i = 0; i < config->saved_windows_count; i++)
|
|
|
4659 {
|
|
|
4660 struct saved_window *s = SAVED_WINDOW_N (config, i);
|
|
380
|
4661 markobj (s->window);
|
|
|
4662 markobj (s->buffer);
|
|
|
4663 markobj (s->start);
|
|
|
4664 markobj (s->pointm);
|
|
|
4665 markobj (s->sb_point);
|
|
|
4666 markobj (s->mark);
|
|
284
|
4667 #if 0
|
|
|
4668 /* #### This looked like this. I do not see why specifier cached
|
|
|
4669 values should not be marked, as such specifiers as toolbars
|
|
|
4670 might have GC-able instances. Freed configs are not marked,
|
|
|
4671 aren't they? -- kkm */
|
|
380
|
4672 markobj (s->dedicated);
|
|
284
|
4673 #else
|
|
380
|
4674 #define WINDOW_SLOT(slot, compare) ((void) (markobj (s->slot)))
|
|
284
|
4675 #include "winslots.h"
|
|
|
4676 #endif
|
|
0
|
4677 }
|
|
149
|
4678 return Qnil;
|
|
0
|
4679 }
|
|
|
4680
|
|
272
|
4681 static size_t
|
|
0
|
4682 sizeof_window_config_for_n_windows (int n)
|
|
|
4683 {
|
|
|
4684 return (sizeof (struct window_config) +
|
|
|
4685 /* n - 1 because zero-sized arrays aren't ANSI C */
|
|
|
4686 (n - 1) *sizeof (struct saved_window));
|
|
|
4687 }
|
|
|
4688
|
|
272
|
4689 static size_t
|
|
0
|
4690 sizeof_window_config (CONST void *h)
|
|
|
4691 {
|
|
185
|
4692 CONST struct window_config *c = (CONST struct window_config *) h;
|
|
0
|
4693 return sizeof_window_config_for_n_windows (c->saved_windows_count);
|
|
|
4694 }
|
|
|
4695
|
|
|
4696 static void
|
|
|
4697 print_window_config (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
4698 {
|
|
|
4699 struct window_config *config = XWINDOW_CONFIGURATION (obj);
|
|
|
4700 char buf[200];
|
|
|
4701 if (print_readably)
|
|
|
4702 error ("printing unreadable object #<window-configuration 0x%x>",
|
|
|
4703 config->header.uid);
|
|
|
4704 write_c_string ("#<window-configuration ", printcharfun);
|
|
|
4705 sprintf (buf, "0x%x>", config->header.uid);
|
|
|
4706 write_c_string (buf, printcharfun);
|
|
|
4707 }
|
|
|
4708
|
|
272
|
4709 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("window-configuration",
|
|
|
4710 window_configuration,
|
|
|
4711 mark_window_config,
|
|
|
4712 print_window_config,
|
|
|
4713 0, 0, 0, sizeof_window_config,
|
|
|
4714 struct window_config);
|
|
|
4715
|
|
|
4716
|
|
0
|
4717 /* Returns a boolean indicating whether the two saved windows are
|
|
|
4718 identical. */
|
|
|
4719 static int
|
|
|
4720 saved_window_equal (struct saved_window *win1, struct saved_window *win2)
|
|
|
4721 {
|
|
284
|
4722 #define WINDOW_SLOT(slot, compare) \
|
|
|
4723 if (!compare (win1->slot, win2->slot)) \
|
|
|
4724 return 0;
|
|
|
4725 #include "winslots.h"
|
|
|
4726
|
|
149
|
4727 return
|
|
|
4728 EQ (win1->window, win2->window) &&
|
|
|
4729 EQ (win1->buffer, win2->buffer) &&
|
|
195
|
4730 internal_equal (win1->start, win2->start, 0) &&
|
|
|
4731 internal_equal (win1->pointm, win2->pointm, 0) &&
|
|
|
4732 internal_equal (win1->sb_point, win2->sb_point, 0) &&
|
|
|
4733 internal_equal (win1->mark, win2->mark, 0) &&
|
|
149
|
4734 win1->pixel_left == win2->pixel_left &&
|
|
|
4735 win1->pixel_top == win2->pixel_top &&
|
|
|
4736 win1->pixel_width == win2->pixel_width &&
|
|
|
4737 win1->pixel_height == win2->pixel_height &&
|
|
|
4738 win1->hscroll == win2->hscroll &&
|
|
257
|
4739 win1->modeline_hscroll == win2->modeline_hscroll &&
|
|
149
|
4740 win1->parent_index == win2->parent_index &&
|
|
|
4741 win1->prev_index == win2->prev_index &&
|
|
284
|
4742 win1->start_at_line_beg == win2->start_at_line_beg;
|
|
0
|
4743 }
|
|
|
4744
|
|
|
4745 /* Returns a boolean indicating whether the two given configurations
|
|
|
4746 are identical. */
|
|
|
4747 static int
|
|
|
4748 window_config_equal (Lisp_Object conf1, Lisp_Object conf2)
|
|
|
4749 {
|
|
|
4750 struct window_config *fig1, *fig2;
|
|
|
4751 int i;
|
|
|
4752
|
|
|
4753 /* First check if they are truly the same. */
|
|
|
4754 if (EQ (conf1, conf2))
|
|
|
4755 return 1;
|
|
|
4756
|
|
|
4757 fig1 = XWINDOW_CONFIGURATION (conf1);
|
|
|
4758 fig2 = XWINDOW_CONFIGURATION (conf2);
|
|
|
4759
|
|
149
|
4760 if (!((fig1->saved_windows_count == fig2->saved_windows_count) &&
|
|
274
|
4761 EQ (fig1->current_window, fig2->current_window) &&
|
|
|
4762 EQ (fig1->current_buffer, fig2->current_buffer) &&
|
|
|
4763 EQ (fig1->root_window, fig2->root_window) &&
|
|
371
|
4764 EQ (fig1->minibuffer_scroll_window, fig2->minibuffer_scroll_window) &&
|
|
149
|
4765 fig1->frame_width == fig2->frame_width &&
|
|
371
|
4766 fig1->frame_height == fig2->frame_height))
|
|
0
|
4767 return 0;
|
|
|
4768
|
|
|
4769 for (i = 0; i < fig1->saved_windows_count; i++)
|
|
|
4770 {
|
|
|
4771 if (!saved_window_equal (SAVED_WINDOW_N (fig1, i),
|
|
|
4772 SAVED_WINDOW_N (fig2, i)))
|
|
|
4773 return 0;
|
|
|
4774 }
|
|
|
4775
|
|
|
4776 return 1;
|
|
|
4777 }
|
|
|
4778
|
|
20
|
4779 DEFUN ("window-configuration-p", Fwindow_configuration_p, 1, 1, 0, /*
|
|
272
|
4780 Return t if OBJECT is a window-configuration object.
|
|
20
|
4781 */
|
|
|
4782 (obj))
|
|
0
|
4783 {
|
|
149
|
4784 return WINDOW_CONFIGURATIONP (obj) ? Qt : Qnil;
|
|
0
|
4785 }
|
|
|
4786
|
|
251
|
4787 static int
|
|
|
4788 mark_windows_in_use_closure (struct window *w, void *closure)
|
|
0
|
4789 {
|
|
251
|
4790 int mark = *(int *)closure;
|
|
|
4791 w->config_mark = mark;
|
|
|
4792 return 0;
|
|
|
4793 }
|
|
|
4794
|
|
|
4795 static void
|
|
|
4796 mark_windows_in_use (struct frame *f, int mark)
|
|
|
4797 {
|
|
|
4798 map_windows (f, mark_windows_in_use_closure, &mark);
|
|
0
|
4799 }
|
|
|
4800
|
|
|
4801 /* Lisp_Object return value so it can be used in record_unwind_protect() */
|
|
|
4802 static Lisp_Object
|
|
|
4803 free_window_configuration (Lisp_Object window_config)
|
|
|
4804 {
|
|
|
4805 int i;
|
|
|
4806 struct window_config *config = XWINDOW_CONFIGURATION (window_config);
|
|
|
4807
|
|
|
4808 /* Free all the markers. It's not completely necessary that
|
|
|
4809 we do this (window configs sitting in a free list aren't
|
|
|
4810 marked normally so the markers wouldn't be marked anyway)
|
|
|
4811 but it's more efficient. */
|
|
|
4812 for (i = 0; i < config->saved_windows_count; i++)
|
|
|
4813 {
|
|
|
4814 struct saved_window *p = SAVED_WINDOW_N (config, i);
|
|
|
4815
|
|
|
4816 if (!NILP (p->pointm))
|
|
|
4817 {
|
|
|
4818 free_marker (XMARKER (p->pointm));
|
|
|
4819 p->pointm = Qnil;
|
|
|
4820 }
|
|
|
4821 if (!NILP (p->start))
|
|
|
4822 {
|
|
|
4823 free_marker (XMARKER (p->start));
|
|
|
4824 p->start = Qnil;
|
|
|
4825 }
|
|
|
4826 if (!NILP (p->sb_point))
|
|
|
4827 {
|
|
|
4828 free_marker (XMARKER (p->sb_point));
|
|
|
4829 p->sb_point = Qnil;
|
|
|
4830 }
|
|
|
4831 if (!NILP (p->mark))
|
|
|
4832 {
|
|
|
4833 free_marker (XMARKER (p->mark));
|
|
|
4834 p->mark = Qnil;
|
|
|
4835 }
|
|
|
4836 }
|
|
|
4837
|
|
|
4838 if (config->saved_windows_count <= countof (Vwindow_configuration_free_list))
|
|
|
4839 free_managed_lcrecord (Vwindow_configuration_free_list
|
|
|
4840 [config->saved_windows_count - 1],
|
|
|
4841 window_config);
|
|
|
4842
|
|
|
4843 return Qnil;
|
|
|
4844 }
|
|
|
4845
|
|
20
|
4846 DEFUN ("set-window-configuration", Fset_window_configuration, 1, 1, 0, /*
|
|
0
|
4847 Set the configuration of windows and buffers as specified by CONFIGURATION.
|
|
|
4848 CONFIGURATION must be a value previously returned
|
|
|
4849 by `current-window-configuration' (which see).
|
|
20
|
4850 */
|
|
|
4851 (configuration))
|
|
0
|
4852 {
|
|
|
4853 struct window *w;
|
|
|
4854 struct window_config *config;
|
|
|
4855 struct saved_window *p;
|
|
|
4856 Lisp_Object new_current_buffer;
|
|
|
4857 int k;
|
|
|
4858 Lisp_Object frame;
|
|
|
4859 struct frame *f;
|
|
|
4860 struct gcpro gcpro1;
|
|
|
4861 Lisp_Object old_window_config;
|
|
371
|
4862 int previous_frame_height;
|
|
|
4863 int previous_frame_width;
|
|
0
|
4864 int specpdl_count = specpdl_depth ();
|
|
|
4865
|
|
|
4866 GCPRO1 (configuration);
|
|
|
4867
|
|
|
4868 CHECK_WINDOW_CONFIGURATION (configuration);
|
|
|
4869 config = XWINDOW_CONFIGURATION (configuration);
|
|
|
4870
|
|
|
4871 frame = XWINDOW (SAVED_WINDOW_N (config, 0)->window)->frame;
|
|
|
4872 f = XFRAME (frame);
|
|
|
4873
|
|
|
4874 /* Do not signal an error here if the frame was deleted. There are
|
|
|
4875 reasonable cases where we could get here with a deleted frame and
|
|
|
4876 just want to do close to nothing instead. */
|
|
|
4877
|
|
|
4878 if (FRAME_LIVE_P (f))
|
|
|
4879 {
|
|
|
4880 /* restore the frame characteristics */
|
|
185
|
4881
|
|
0
|
4882 new_current_buffer = config->current_buffer;
|
|
|
4883 if (!BUFFER_LIVE_P (XBUFFER (new_current_buffer)))
|
|
|
4884 new_current_buffer = Qnil;
|
|
|
4885
|
|
|
4886 /*
|
|
|
4887 * Assumed precondition: w->config_mark = 0 for all w
|
|
|
4888 * This procedure should ensure this is true by the time it exits
|
|
|
4889 * to ensure the precondition for future calls.
|
|
|
4890 *
|
|
|
4891 * We use w->config_mark to know whether we're modifying a
|
|
|
4892 * window that is currently visible on the frame (#### we
|
|
|
4893 * should just be able to check whether the window is dead
|
|
|
4894 * or not, but this way is safer?). As we process each
|
|
|
4895 * window, we set its config_mark to 0. At the end, we
|
|
|
4896 * go through all the windows that used to be on the frame,
|
|
|
4897 * set each one's config_mark to 0 (to maintain the
|
|
|
4898 * assumed precondition) and delete each one that's no
|
|
|
4899 * longer in use.
|
|
|
4900 *
|
|
|
4901 * #### Using a window-configuration to keep track of
|
|
|
4902 * the current windows is wasteful. All we need is the
|
|
|
4903 * list of windows, so we could just use a dynarr.
|
|
|
4904 */
|
|
|
4905 old_window_config = Fcurrent_window_configuration (frame);
|
|
|
4906
|
|
|
4907 /* If the new configuration is already equal to the old, then stop
|
|
|
4908 right here. This saves the work below and it also saves
|
|
|
4909 triggering a full redisplay of this window. This is a huge win
|
|
|
4910 when using the mouse since the mode motion code uses
|
|
|
4911 save-window-excursion extensively but will rarely cause the
|
|
|
4912 configuration to actually change. */
|
|
|
4913 if (window_config_equal (configuration, old_window_config))
|
|
|
4914 {
|
|
|
4915 free_window_configuration (old_window_config);
|
|
|
4916 UNGCPRO;
|
|
|
4917 return Qnil;
|
|
|
4918 }
|
|
|
4919
|
|
|
4920 /* We can't quit or even check for quit because that may cause
|
|
|
4921 investigation of the frame state, which may crash if the frame is
|
|
|
4922 in an inconsistent state. */
|
|
|
4923 begin_dont_check_for_quit ();
|
|
|
4924 record_unwind_protect (free_window_configuration, old_window_config);
|
|
|
4925
|
|
251
|
4926 mark_windows_in_use (f, 1);
|
|
0
|
4927
|
|
|
4928 previous_frame_width = FRAME_WIDTH (f);
|
|
|
4929 previous_frame_height = FRAME_HEIGHT (f);
|
|
|
4930 /* If the frame has been resized since this window configuration was
|
|
|
4931 made, we change the frame to the size specified in the
|
|
|
4932 configuration, restore the configuration, and then resize it
|
|
|
4933 back. We keep track of the prevailing height in these variables. */
|
|
|
4934 if (config->frame_height != FRAME_HEIGHT (f)
|
|
|
4935 || config->frame_width != FRAME_WIDTH (f))
|
|
|
4936 change_frame_size (f, config->frame_height, config->frame_width, 0);
|
|
371
|
4937
|
|
0
|
4938 /* Temporarily avoid any problems with windows that are smaller
|
|
|
4939 than they are supposed to be. */
|
|
|
4940 window_min_height = 1;
|
|
|
4941 window_min_width = 1;
|
|
|
4942
|
|
|
4943 /* OK, now restore all the windows in the window config.
|
|
|
4944 This may involve "undeleting" windows, since the
|
|
|
4945 windows in the window config may be deleted.
|
|
|
4946 */
|
|
|
4947 for (k = 0; k < config->saved_windows_count; k++)
|
|
|
4948 {
|
|
|
4949 p = SAVED_WINDOW_N (config, k);
|
|
|
4950 w = XWINDOW (p->window);
|
|
|
4951 w->next = Qnil;
|
|
|
4952
|
|
|
4953 /* The window might be dead. In this case, its redisplay
|
|
|
4954 structures were freed, so we need to reallocate them. */
|
|
|
4955 if (!w->face_cachels)
|
|
|
4956 {
|
|
185
|
4957 w->face_cachels = Dynarr_new (face_cachel);
|
|
0
|
4958 reset_face_cachels (w);
|
|
|
4959 }
|
|
|
4960 if (!w->glyph_cachels)
|
|
185
|
4961 w->glyph_cachels = Dynarr_new (glyph_cachel);
|
|
0
|
4962 if (!w->line_start_cache)
|
|
185
|
4963 w->line_start_cache = Dynarr_new (line_start_cache);
|
|
0
|
4964 w->dead = 0;
|
|
|
4965
|
|
|
4966 if (p->parent_index >= 0)
|
|
|
4967 w->parent = SAVED_WINDOW_N (config, p->parent_index)->window;
|
|
|
4968 else
|
|
|
4969 w->parent = Qnil;
|
|
|
4970
|
|
|
4971 if (p->prev_index >= 0)
|
|
|
4972 {
|
|
|
4973 w->prev = SAVED_WINDOW_N (config, p->prev_index)->window;
|
|
|
4974
|
|
|
4975 /* This is true for a minibuffer-only frame. */
|
|
|
4976 if (!NILP (w->mini_p) && EQ (w->prev, p->window))
|
|
|
4977 w->next = Qnil;
|
|
|
4978 else
|
|
|
4979 XWINDOW (w->prev)->next = p->window;
|
|
|
4980 }
|
|
|
4981 else
|
|
|
4982 {
|
|
|
4983 w->prev = Qnil;
|
|
|
4984 if (!NILP (w->parent))
|
|
|
4985 {
|
|
|
4986 if (WINDOW_WIDTH (p) == WINDOW_WIDTH (XWINDOW (w->parent)))
|
|
|
4987 {
|
|
|
4988 XWINDOW (w->parent)->vchild = p->window;
|
|
|
4989 XWINDOW (w->parent)->hchild = Qnil;
|
|
|
4990 }
|
|
|
4991 else
|
|
|
4992 {
|
|
|
4993 XWINDOW (w->parent)->hchild = p->window;
|
|
|
4994 XWINDOW (w->parent)->vchild = Qnil;
|
|
|
4995 }
|
|
|
4996 }
|
|
|
4997 }
|
|
|
4998 if (!w->config_mark)
|
|
|
4999 {
|
|
|
5000 /* #### This should be equivalent to the window previously
|
|
|
5001 having been dead. If we're brave, we'll put in an
|
|
|
5002 assertion to this effect. */
|
|
|
5003 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
5004 }
|
|
|
5005 else /* if (!EQ (w->buffer, p->buffer)) */
|
|
|
5006 {
|
|
|
5007 /* With the new redisplay we let it know that a change has
|
|
|
5008 been made and it will take care of the rest. If we don't
|
|
|
5009 tell it something has possibly changed it could lead to
|
|
|
5010 incorrect display. */
|
|
|
5011 MARK_WINDOWS_CHANGED (w);
|
|
|
5012 }
|
|
|
5013
|
|
|
5014 WINDOW_LEFT (w) = WINDOW_LEFT (p);
|
|
|
5015 WINDOW_TOP (w) = WINDOW_TOP (p);
|
|
|
5016 WINDOW_WIDTH (w) = WINDOW_WIDTH (p);
|
|
|
5017 WINDOW_HEIGHT (w) = WINDOW_HEIGHT (p);
|
|
|
5018 w->hscroll = p->hscroll;
|
|
257
|
5019 w->modeline_hscroll = p->modeline_hscroll;
|
|
0
|
5020 w->line_cache_last_updated = Qzero;
|
|
|
5021 SET_LAST_MODIFIED (w, 1);
|
|
|
5022 SET_LAST_FACECHANGE (w);
|
|
|
5023 w->config_mark = 0;
|
|
|
5024
|
|
284
|
5025 #define WINDOW_SLOT(slot, compare) w->slot = p->slot;
|
|
|
5026 #include "winslots.h"
|
|
|
5027
|
|
0
|
5028 /* Reinstall the saved buffer and pointers into it. */
|
|
|
5029 if (NILP (p->buffer))
|
|
|
5030 w->buffer = p->buffer;
|
|
|
5031 else
|
|
|
5032 {
|
|
|
5033 if (BUFFER_LIVE_P (XBUFFER (p->buffer)))
|
|
|
5034 /* If saved buffer is alive, install it. */
|
|
|
5035 {
|
|
|
5036 w->buffer = p->buffer;
|
|
|
5037 w->start_at_line_beg = p->start_at_line_beg;
|
|
|
5038 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
5039 Fmarker_position (p->start),
|
|
|
5040 w->buffer);
|
|
|
5041 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
5042 Fmarker_position (p->pointm),
|
|
|
5043 w->buffer);
|
|
|
5044 set_marker_restricted (w->sb_point,
|
|
|
5045 Fmarker_position (p->sb_point),
|
|
|
5046 w->buffer);
|
|
|
5047 Fset_marker (XBUFFER (w->buffer)->mark,
|
|
|
5048 Fmarker_position (p->mark), w->buffer);
|
|
|
5049
|
|
|
5050 /* As documented in Fcurrent_window_configuration, don't
|
|
|
5051 save the location of point in the buffer which was current
|
|
|
5052 when the window configuration was recorded. */
|
|
|
5053 if (!EQ (p->buffer, new_current_buffer) &&
|
|
|
5054 XBUFFER (p->buffer) == current_buffer)
|
|
223
|
5055 Fgoto_char (w->pointm[CURRENT_DISP], Qnil);
|
|
0
|
5056 }
|
|
|
5057 else if (NILP (w->buffer) ||
|
|
|
5058 !BUFFER_LIVE_P (XBUFFER (w->buffer)))
|
|
|
5059 /* Else if window's old buffer is dead too, get a live one. */
|
|
|
5060 {
|
|
|
5061 /* #### The following line makes me nervous... */
|
|
|
5062 /* w->buffer = Fcdr (Fcar (XFRAME (w->frame)->buffer_alist));*/
|
|
|
5063 w->buffer = Fget_buffer_create (QSscratch);
|
|
|
5064 /* w->buffer = Fother_buffer (Qnil, w->frame, Qnil); */
|
|
|
5065 /* This will set the markers to beginning of visible
|
|
|
5066 range. */
|
|
|
5067 set_marker_restricted (w->start[CURRENT_DISP], Qzero, w->buffer);
|
|
|
5068 set_marker_restricted (w->pointm[CURRENT_DISP], Qzero,
|
|
|
5069 w->buffer);
|
|
|
5070 set_marker_restricted (w->sb_point, Qzero, w->buffer);
|
|
|
5071 w->start_at_line_beg = 1;
|
|
|
5072 }
|
|
|
5073 else
|
|
|
5074 /* Keeping window's old buffer; make sure the markers
|
|
|
5075 are real. */
|
|
|
5076 {
|
|
|
5077 /* Set window markers at start of visible range. */
|
|
|
5078 if (XMARKER (w->start[CURRENT_DISP])->buffer == 0)
|
|
|
5079 set_marker_restricted (w->start[CURRENT_DISP], Qzero,
|
|
|
5080 w->buffer);
|
|
|
5081 if (XMARKER (w->sb_point)->buffer == 0)
|
|
|
5082 set_marker_restricted (w->sb_point, Qzero, w->buffer);
|
|
|
5083 if (XMARKER (w->pointm[CURRENT_DISP])->buffer == 0)
|
|
|
5084 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
5085 make_int
|
|
|
5086 (BUF_PT (XBUFFER (w->buffer))),
|
|
|
5087 w->buffer);
|
|
|
5088 w->start_at_line_beg = 1;
|
|
|
5089 }
|
|
|
5090 }
|
|
|
5091 }
|
|
|
5092
|
|
|
5093 FRAME_ROOT_WINDOW (f) = config->root_window;
|
|
|
5094 /* Note that FSFmacs unilaterally calls Fselect_window() here, and
|
|
|
5095 then calls do_switch_frame() below to select the frame that was
|
|
|
5096 recorded in the window config as being selected.
|
|
|
5097
|
|
|
5098 Instead, we don't ever change the selected frame, and either
|
|
|
5099 call Fselect_window() below if the window config's frame is
|
|
|
5100 currently selected, or just set the selected window of the
|
|
|
5101 window config's frame. */
|
|
|
5102
|
|
|
5103 /* Set the frame height to the value it had before this function. */
|
|
|
5104 if (previous_frame_height != FRAME_HEIGHT (f)
|
|
|
5105 || previous_frame_width != FRAME_WIDTH (f))
|
|
|
5106 change_frame_size (f, previous_frame_height, previous_frame_width, 0);
|
|
371
|
5107
|
|
0
|
5108 /* If restoring in the current frame make the window current,
|
|
|
5109 otherwise just update the frame selected_window slot to be
|
|
|
5110 the restored current_window. */
|
|
|
5111 if (f == selected_frame ())
|
|
|
5112 {
|
|
|
5113 /* When using `pop-window-configuration', often the minibuffer
|
|
|
5114 ends up as the selected window even though it's not active ...
|
|
|
5115 I really don't know the cause of this, but it should never
|
|
|
5116 happen. This kludge should fix it.
|
|
|
5117
|
|
|
5118 #### Find out why this is really going wrong. */
|
|
|
5119 if (!minibuf_level &&
|
|
|
5120 MINI_WINDOW_P (XWINDOW (config->current_window)))
|
|
|
5121 Fselect_window (Fnext_window (config->current_window,
|
|
282
|
5122 Qnil, Qnil, Qnil),
|
|
|
5123 Qnil);
|
|
0
|
5124 else
|
|
282
|
5125 Fselect_window (config->current_window, Qnil);
|
|
0
|
5126 if (!NILP (new_current_buffer))
|
|
|
5127 Fset_buffer (new_current_buffer);
|
|
|
5128 else
|
|
|
5129 Fset_buffer (XWINDOW (Fselected_window (Qnil))->buffer);
|
|
|
5130 }
|
|
|
5131 else
|
|
|
5132 set_frame_selected_window (f, config->current_window);
|
|
|
5133 }
|
|
173
|
5134 else
|
|
|
5135 old_window_config = Qnil; /* Warning suppression */
|
|
0
|
5136
|
|
|
5137 /* Restore the minimum heights recorded in the configuration. */
|
|
|
5138 window_min_height = config->min_height;
|
|
|
5139 window_min_width = config->min_width;
|
|
|
5140
|
|
|
5141 #if 0 /* FSFmacs */
|
|
|
5142 /* see above comment */
|
|
|
5143 /* Fselect_window will have made f the selected frame, so we
|
|
|
5144 reselect the proper frame here. Fhandle_switch_frame will change the
|
|
|
5145 selected window too, but that doesn't make the call to
|
|
|
5146 Fselect_window above totally superfluous; it still sets f's
|
|
|
5147 selected window. */
|
|
|
5148 if (FRAME_LIVE_P (XFRAME (config->selected_frame)))
|
|
|
5149 do_switch_frame (config->selected_frame, Qnil, 0);
|
|
|
5150 #endif
|
|
|
5151
|
|
274
|
5152 Vminibuffer_scroll_window = config->minibuffer_scroll_window;
|
|
0
|
5153
|
|
|
5154 if (FRAME_LIVE_P (f))
|
|
|
5155 {
|
|
|
5156 /* Do this before calling recompute_all_cached_specifiers_in_window()
|
|
|
5157 so that things like redisplay_redraw_cursor() won't abort due
|
|
|
5158 to no window mirror present. */
|
|
|
5159 f->mirror_dirty = 1;
|
|
|
5160
|
|
|
5161 config = XWINDOW_CONFIGURATION (old_window_config);
|
|
|
5162 for (k = 0; k < config->saved_windows_count; k++)
|
|
|
5163 {
|
|
|
5164 p = SAVED_WINDOW_N (config, k);
|
|
|
5165 w = XWINDOW (p->window);
|
|
|
5166 /* Remember, we set w->config_mark on all currently visible
|
|
|
5167 windows, and reset it on all newly visible windows.
|
|
|
5168 Any windows still marked need to be deleted. */
|
|
|
5169 if (w->config_mark)
|
|
|
5170 {
|
|
|
5171 mark_window_as_deleted (w);
|
|
|
5172 w->config_mark = 0;
|
|
|
5173 }
|
|
|
5174 else
|
|
|
5175 {
|
|
|
5176 /* We just potentially changed the window's buffer and
|
|
|
5177 potentially turned a dead window into a live one,
|
|
|
5178 so we need to recompute the cached specifier values. */
|
|
|
5179 recompute_all_cached_specifiers_in_window (w);
|
|
|
5180 }
|
|
|
5181 }
|
|
|
5182 }
|
|
|
5183
|
|
|
5184 /* Now restore things, when everything else if OK. */
|
|
|
5185
|
|
|
5186 unbind_to (specpdl_count, Qnil);
|
|
|
5187
|
|
|
5188 UNGCPRO;
|
|
|
5189
|
|
149
|
5190 return Qnil;
|
|
0
|
5191 }
|
|
|
5192
|
|
|
5193 /* Mark all subwindows of a window as deleted. The argument
|
|
|
5194 W is actually the subwindow tree of the window in question. */
|
|
|
5195
|
|
|
5196 void
|
|
|
5197 delete_all_subwindows (struct window *w)
|
|
|
5198 {
|
|
272
|
5199 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next));
|
|
|
5200 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
5201 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild));
|
|
0
|
5202
|
|
|
5203 mark_window_as_deleted (w);
|
|
|
5204 }
|
|
|
5205
|
|
|
5206
|
|
|
5207 static int
|
|
|
5208 count_windows (struct window *window)
|
|
|
5209 {
|
|
272
|
5210 return 1 +
|
|
|
5211 (!NILP (window->next) ? count_windows (XWINDOW (window->next)) : 0) +
|
|
|
5212 (!NILP (window->vchild) ? count_windows (XWINDOW (window->vchild)) : 0) +
|
|
|
5213 (!NILP (window->hchild) ? count_windows (XWINDOW (window->hchild)) : 0);
|
|
0
|
5214 }
|
|
|
5215
|
|
|
5216 static int
|
|
|
5217 saved_window_index (Lisp_Object window, struct window_config *config, int lim)
|
|
|
5218 {
|
|
|
5219 int j;
|
|
|
5220 for (j = 0; j < lim; j++)
|
|
|
5221 {
|
|
|
5222 if (EQ (SAVED_WINDOW_N (config, j)->window, window))
|
|
149
|
5223 return j;
|
|
272
|
5224 }
|
|
0
|
5225 abort ();
|
|
|
5226 return 0; /* suppress compiler warning */
|
|
|
5227 }
|
|
|
5228
|
|
|
5229 static int
|
|
|
5230 save_window_save (Lisp_Object window, struct window_config *config, int i)
|
|
|
5231 {
|
|
|
5232 struct window *w;
|
|
|
5233
|
|
|
5234 for (; !NILP (window); window = w->next)
|
|
|
5235 {
|
|
272
|
5236 struct saved_window *p = SAVED_WINDOW_N (config, i);
|
|
|
5237
|
|
0
|
5238 w = XWINDOW (window);
|
|
|
5239 i++;
|
|
|
5240 p->window = window;
|
|
|
5241 p->buffer = w->buffer;
|
|
|
5242 WINDOW_LEFT (p) = WINDOW_LEFT (w);
|
|
|
5243 WINDOW_TOP (p) = WINDOW_TOP (w);
|
|
|
5244 WINDOW_WIDTH (p) = WINDOW_WIDTH (w);
|
|
|
5245 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (w);
|
|
|
5246 p->hscroll = w->hscroll;
|
|
257
|
5247 p->modeline_hscroll = w->modeline_hscroll;
|
|
284
|
5248
|
|
|
5249 #define WINDOW_SLOT(slot, compare) p->slot = w->slot;
|
|
|
5250 #include "winslots.h"
|
|
255
|
5251
|
|
0
|
5252 if (!NILP (w->buffer))
|
|
|
5253 {
|
|
|
5254 /* Save w's value of point in the window configuration.
|
|
|
5255 If w is the selected window, then get the value of point
|
|
|
5256 from the buffer; pointm is garbage in the selected window. */
|
|
|
5257 if (EQ (window, Fselected_window (Qnil)))
|
|
|
5258 {
|
|
|
5259 p->pointm = noseeum_make_marker ();
|
|
|
5260 Fset_marker (p->pointm,
|
|
|
5261 make_int (BUF_PT (XBUFFER (w->buffer))),
|
|
|
5262 w->buffer);
|
|
|
5263 }
|
|
|
5264 else
|
|
|
5265 p->pointm = noseeum_copy_marker (w->pointm[CURRENT_DISP], Qnil);
|
|
|
5266
|
|
|
5267 p->start = noseeum_copy_marker (w->start[CURRENT_DISP], Qnil);
|
|
|
5268 p->sb_point = noseeum_copy_marker (w->sb_point, Qnil);
|
|
|
5269 p->start_at_line_beg = w->start_at_line_beg;
|
|
|
5270
|
|
|
5271 p->mark = noseeum_copy_marker (XBUFFER (w->buffer)->mark, Qnil);
|
|
|
5272 }
|
|
|
5273 else
|
|
|
5274 {
|
|
|
5275 p->pointm = Qnil;
|
|
|
5276 p->start = Qnil;
|
|
|
5277 p->sb_point = Qnil;
|
|
|
5278 p->mark = Qnil;
|
|
|
5279 p->start_at_line_beg = 0;
|
|
|
5280 }
|
|
|
5281
|
|
|
5282 if (NILP (w->parent))
|
|
|
5283 p->parent_index = -1;
|
|
|
5284 else
|
|
|
5285 p->parent_index = saved_window_index (w->parent, config, i);
|
|
|
5286 if (NILP (w->prev))
|
|
|
5287 p->prev_index = -1;
|
|
|
5288 else
|
|
|
5289 p->prev_index = saved_window_index (w->prev, config, i);
|
|
|
5290 if (!NILP (w->vchild))
|
|
|
5291 i = save_window_save (w->vchild, config, i);
|
|
|
5292 if (!NILP (w->hchild))
|
|
|
5293 i = save_window_save (w->hchild, config, i);
|
|
|
5294 }
|
|
|
5295
|
|
|
5296 return i;
|
|
|
5297 }
|
|
|
5298
|
|
|
5299 #if 0 /* FSFmacs */
|
|
|
5300 /* Added to doc string:
|
|
|
5301
|
|
|
5302 This also records the currently selected frame, and FRAME's focus
|
|
|
5303 redirection (see `redirect-frame-focus').
|
|
|
5304
|
|
|
5305 */
|
|
|
5306 #endif
|
|
|
5307
|
|
20
|
5308 DEFUN ("current-window-configuration", Fcurrent_window_configuration, 0, 1, 0, /*
|
|
0
|
5309 Return an object representing the current window configuration of FRAME.
|
|
|
5310 If FRAME is nil or omitted, use the selected frame.
|
|
|
5311 This describes the number of windows, their sizes and current buffers,
|
|
|
5312 and for each displayed buffer, where display starts, and the positions of
|
|
|
5313 point and mark. An exception is made for point in the current buffer:
|
|
|
5314 its value is -not- saved.
|
|
20
|
5315 */
|
|
|
5316 (frame))
|
|
0
|
5317 {
|
|
272
|
5318 Lisp_Object result;
|
|
|
5319 struct frame *f = decode_frame (frame);
|
|
0
|
5320 struct window_config *config;
|
|
272
|
5321 int n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f)));
|
|
|
5322
|
|
0
|
5323 if (n_windows <= countof (Vwindow_configuration_free_list))
|
|
272
|
5324 config = XWINDOW_CONFIGURATION (allocate_managed_lcrecord
|
|
|
5325 (Vwindow_configuration_free_list
|
|
|
5326 [n_windows - 1]));
|
|
0
|
5327 else
|
|
|
5328 /* More than ten windows; just allocate directly */
|
|
185
|
5329 config = (struct window_config *)
|
|
|
5330 alloc_lcrecord (sizeof_window_config_for_n_windows (n_windows),
|
|
|
5331 lrecord_window_configuration);
|
|
0
|
5332 XSETWINDOW_CONFIGURATION (result, config);
|
|
371
|
5333
|
|
0
|
5334 config->frame_width = FRAME_WIDTH (f);
|
|
371
|
5335 config->frame_height = FRAME_HEIGHT (f);
|
|
0
|
5336 config->current_window = FRAME_SELECTED_WINDOW (f);
|
|
|
5337 XSETBUFFER (config->current_buffer, current_buffer);
|
|
274
|
5338 config->minibuffer_scroll_window = Vminibuffer_scroll_window;
|
|
0
|
5339 config->root_window = FRAME_ROOT_WINDOW (f);
|
|
|
5340 config->min_height = window_min_height;
|
|
|
5341 config->min_width = window_min_width;
|
|
|
5342 config->saved_windows_count = n_windows;
|
|
|
5343 save_window_save (FRAME_ROOT_WINDOW (f), config, 0);
|
|
149
|
5344 return result;
|
|
0
|
5345 }
|
|
|
5346
|
|
|
5347 Lisp_Object
|
|
|
5348 save_window_excursion_unwind (Lisp_Object window_config)
|
|
|
5349 {
|
|
|
5350 Lisp_Object val = Fset_window_configuration (window_config);
|
|
|
5351 free_window_configuration (window_config);
|
|
|
5352 return val;
|
|
|
5353 }
|
|
|
5354
|
|
20
|
5355 DEFUN ("save-window-excursion", Fsave_window_excursion, 0, UNEVALLED, 0, /*
|
|
0
|
5356 Execute body, preserving window sizes and contents.
|
|
|
5357 Restores which buffer appears in which window, where display starts,
|
|
|
5358 as well as the current buffer.
|
|
|
5359 Does not restore the value of point in current buffer.
|
|
20
|
5360 */
|
|
|
5361 (args))
|
|
0
|
5362 {
|
|
|
5363 /* This function can GC */
|
|
|
5364 Lisp_Object val;
|
|
|
5365 int speccount = specpdl_depth ();
|
|
|
5366
|
|
|
5367 record_unwind_protect (save_window_excursion_unwind,
|
|
|
5368 Fcurrent_window_configuration (Qnil));
|
|
|
5369 val = Fprogn (args);
|
|
|
5370 return unbind_to (speccount, val);
|
|
|
5371 }
|
|
|
5372
|
|
|
5373
|
|
|
5374 #ifdef DEBUG_XEMACS
|
|
|
5375 /* This is short and simple in elisp, but... it was written to debug
|
|
|
5376 problems purely on the C side. That is where we need to call it so
|
|
|
5377 here it is. */
|
|
|
5378 static void
|
|
|
5379 debug_print_window (Lisp_Object window, int level)
|
|
|
5380 {
|
|
272
|
5381 int i;
|
|
|
5382 Lisp_Object child = Fwindow_first_vchild (window);
|
|
|
5383
|
|
0
|
5384 if (NILP (child))
|
|
|
5385 child = Fwindow_first_hchild (window);
|
|
|
5386
|
|
272
|
5387 for (i = level; i > 0; i--)
|
|
|
5388 putc ('\t', stderr);
|
|
|
5389
|
|
|
5390 fputs ("#<window", stderr);
|
|
|
5391 {
|
|
|
5392 Lisp_Object buffer = XWINDOW (window)->buffer;
|
|
|
5393 if (!NILP (buffer) && BUFFERP (buffer))
|
|
|
5394 fprintf (stderr, " on %s", XSTRING_DATA (XBUFFER (buffer)->name));
|
|
|
5395 }
|
|
0
|
5396 fprintf (stderr, " 0x%x>", XWINDOW (window)->header.uid);
|
|
|
5397
|
|
|
5398 while (!NILP (child))
|
|
|
5399 {
|
|
|
5400 debug_print_window (child, level + 1);
|
|
|
5401 child = Fwindow_next_child (child);
|
|
|
5402 }
|
|
|
5403 }
|
|
|
5404
|
|
|
5405 void debug_print_windows (struct frame *f);
|
|
|
5406 void
|
|
|
5407 debug_print_windows (struct frame *f)
|
|
|
5408 {
|
|
|
5409 debug_print_window (f->root_window, 0);
|
|
272
|
5410 putc ('\n', stderr);
|
|
0
|
5411 }
|
|
|
5412 #endif /* DEBUG_XEMACS */
|
|
|
5413
|
|
|
5414
|
|
|
5415 /************************************************************************/
|
|
|
5416 /* initialization */
|
|
|
5417 /************************************************************************/
|
|
|
5418
|
|
|
5419 void
|
|
|
5420 syms_of_window (void)
|
|
|
5421 {
|
|
|
5422 defsymbol (&Qwindowp, "windowp");
|
|
|
5423 defsymbol (&Qwindow_live_p, "window-live-p");
|
|
|
5424 defsymbol (&Qwindow_configurationp, "window-configuration-p");
|
|
|
5425 defsymbol (&Qscroll_up, "scroll-up");
|
|
|
5426 defsymbol (&Qscroll_down, "scroll-down");
|
|
|
5427 defsymbol (&Qtemp_buffer_show_hook, "temp-buffer-show-hook");
|
|
|
5428 defsymbol (&Qdisplay_buffer, "display-buffer");
|
|
|
5429
|
|
|
5430 #ifdef MEMORY_USAGE_STATS
|
|
|
5431 defsymbol (&Qface_cache, "face-cache");
|
|
|
5432 defsymbol (&Qglyph_cache, "glyph-cache");
|
|
|
5433 defsymbol (&Qline_start_cache, "line-start-cache");
|
|
|
5434 #ifdef HAVE_SCROLLBARS
|
|
|
5435 defsymbol (&Qscrollbar_instances, "scrollbar-instances");
|
|
|
5436 #endif
|
|
|
5437 defsymbol (&Qother_redisplay, "other-redisplay");
|
|
|
5438 /* Qother in general.c */
|
|
|
5439 #endif
|
|
|
5440
|
|
20
|
5441 DEFSUBR (Fselected_window);
|
|
|
5442 DEFSUBR (Fminibuffer_window);
|
|
|
5443 DEFSUBR (Fwindow_minibuffer_p);
|
|
|
5444 DEFSUBR (Fwindowp);
|
|
|
5445 DEFSUBR (Fwindow_live_p);
|
|
|
5446 DEFSUBR (Fwindow_first_hchild);
|
|
|
5447 DEFSUBR (Fwindow_first_vchild);
|
|
|
5448 DEFSUBR (Fwindow_next_child);
|
|
|
5449 DEFSUBR (Fwindow_previous_child);
|
|
|
5450 DEFSUBR (Fwindow_parent);
|
|
|
5451 DEFSUBR (Fwindow_lowest_p);
|
|
|
5452 DEFSUBR (Fwindow_highest_p);
|
|
|
5453 DEFSUBR (Fwindow_leftmost_p);
|
|
|
5454 DEFSUBR (Fwindow_rightmost_p);
|
|
|
5455 DEFSUBR (Fpos_visible_in_window_p);
|
|
|
5456 DEFSUBR (Fwindow_buffer);
|
|
|
5457 DEFSUBR (Fwindow_frame);
|
|
|
5458 DEFSUBR (Fwindow_height);
|
|
|
5459 DEFSUBR (Fwindow_displayed_height);
|
|
|
5460 DEFSUBR (Fwindow_width);
|
|
|
5461 DEFSUBR (Fwindow_pixel_height);
|
|
|
5462 DEFSUBR (Fwindow_pixel_width);
|
|
288
|
5463 DEFSUBR (Fwindow_text_area_pixel_height);
|
|
|
5464 DEFSUBR (Fwindow_displayed_text_pixel_height);
|
|
|
5465 DEFSUBR (Fwindow_text_area_pixel_width);
|
|
20
|
5466 DEFSUBR (Fwindow_hscroll);
|
|
265
|
5467 #ifdef MODELINE_IS_SCROLLABLE
|
|
257
|
5468 DEFSUBR (Fmodeline_hscroll);
|
|
272
|
5469 DEFSUBR (Fset_modeline_hscroll);
|
|
265
|
5470 #endif /* MODELINE_IS_SCROLLABLE */
|
|
276
|
5471 #if 0 /* bogus FSF crock */
|
|
20
|
5472 DEFSUBR (Fwindow_redisplay_end_trigger);
|
|
|
5473 DEFSUBR (Fset_window_redisplay_end_trigger);
|
|
0
|
5474 #endif
|
|
20
|
5475 DEFSUBR (Fset_window_hscroll);
|
|
|
5476 DEFSUBR (Fwindow_pixel_edges);
|
|
288
|
5477 DEFSUBR (Fwindow_text_area_pixel_edges);
|
|
20
|
5478 DEFSUBR (Fwindow_point);
|
|
|
5479 DEFSUBR (Fwindow_start);
|
|
|
5480 DEFSUBR (Fwindow_end);
|
|
|
5481 DEFSUBR (Fset_window_point);
|
|
|
5482 DEFSUBR (Fset_window_start);
|
|
|
5483 DEFSUBR (Fwindow_dedicated_p);
|
|
|
5484 DEFSUBR (Fset_window_dedicated_p);
|
|
|
5485 DEFSUBR (Fnext_window);
|
|
|
5486 DEFSUBR (Fprevious_window);
|
|
|
5487 DEFSUBR (Fnext_vertical_window);
|
|
|
5488 DEFSUBR (Fother_window);
|
|
|
5489 DEFSUBR (Fget_lru_window);
|
|
|
5490 DEFSUBR (Fget_largest_window);
|
|
|
5491 DEFSUBR (Fget_buffer_window);
|
|
|
5492 DEFSUBR (Fwindow_left_margin_pixel_width);
|
|
|
5493 DEFSUBR (Fwindow_right_margin_pixel_width);
|
|
|
5494 DEFSUBR (Fdelete_other_windows);
|
|
|
5495 DEFSUBR (Fdelete_windows_on);
|
|
|
5496 DEFSUBR (Freplace_buffer_in_windows);
|
|
|
5497 DEFSUBR (Fdelete_window);
|
|
|
5498 DEFSUBR (Fset_window_buffer);
|
|
|
5499 DEFSUBR (Fselect_window);
|
|
|
5500 DEFSUBR (Fsplit_window);
|
|
|
5501 DEFSUBR (Fenlarge_window);
|
|
263
|
5502 DEFSUBR (Fenlarge_window_pixels);
|
|
20
|
5503 DEFSUBR (Fshrink_window);
|
|
263
|
5504 DEFSUBR (Fshrink_window_pixels);
|
|
20
|
5505 DEFSUBR (Fscroll_up);
|
|
|
5506 DEFSUBR (Fscroll_down);
|
|
|
5507 DEFSUBR (Fscroll_left);
|
|
|
5508 DEFSUBR (Fscroll_right);
|
|
|
5509 DEFSUBR (Fother_window_for_scrolling);
|
|
|
5510 DEFSUBR (Fscroll_other_window);
|
|
280
|
5511 DEFSUBR (Fcenter_to_window_line);
|
|
20
|
5512 DEFSUBR (Fmove_to_window_line);
|
|
0
|
5513 #ifdef MEMORY_USAGE_STATS
|
|
20
|
5514 DEFSUBR (Fwindow_memory_usage);
|
|
0
|
5515 #endif
|
|
20
|
5516 DEFSUBR (Fwindow_configuration_p);
|
|
|
5517 DEFSUBR (Fset_window_configuration);
|
|
|
5518 DEFSUBR (Fcurrent_window_configuration);
|
|
|
5519 DEFSUBR (Fsave_window_excursion);
|
|
0
|
5520 }
|
|
|
5521
|
|
|
5522 void
|
|
|
5523 vars_of_window (void)
|
|
|
5524 {
|
|
|
5525 /* Make sure all windows get marked */
|
|
|
5526 minibuf_window = Qnil;
|
|
|
5527 staticpro (&minibuf_window);
|
|
|
5528
|
|
|
5529 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /*
|
|
|
5530 *Non-nil means to scroll if point lands on a line which is clipped.
|
|
|
5531 */ );
|
|
|
5532 scroll_on_clipped_lines = 1;
|
|
|
5533
|
|
|
5534 DEFVAR_LISP ("temp-buffer-show-hook", &Vtemp_buffer_show_hook /*
|
|
|
5535 See `temp-buffer-show-function'.
|
|
|
5536 */ );
|
|
|
5537 Vtemp_buffer_show_hook = Qnil;
|
|
|
5538
|
|
|
5539 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /*
|
|
|
5540 Non-nil means call as function to display a help buffer.
|
|
|
5541 The function is called with one argument, the buffer to be displayed.
|
|
|
5542 Used by `with-output-to-temp-buffer'.
|
|
|
5543 If this function is used, then it must do the entire job of showing
|
|
|
5544 the buffer; `temp-buffer-show-hook' is not run unless this function runs it.
|
|
|
5545 */ );
|
|
|
5546 Vtemp_buffer_show_function = Qnil;
|
|
|
5547
|
|
274
|
5548 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /*
|
|
0
|
5549 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll.
|
|
|
5550 */ );
|
|
274
|
5551 Vminibuffer_scroll_window = Qnil;
|
|
0
|
5552
|
|
|
5553 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /*
|
|
|
5554 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window.
|
|
|
5555 */ );
|
|
|
5556 Vother_window_scroll_buffer = Qnil;
|
|
|
5557
|
|
|
5558 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /*
|
|
|
5559 *Number of lines of continuity when scrolling by screenfuls.
|
|
|
5560 */ );
|
|
|
5561 next_screen_context_lines = 2;
|
|
|
5562
|
|
|
5563 DEFVAR_INT ("window-min-height", &window_min_height /*
|
|
|
5564 *Delete any window less than this tall (including its modeline).
|
|
|
5565 */ );
|
|
|
5566 window_min_height = 4;
|
|
|
5567
|
|
|
5568 DEFVAR_INT ("window-min-width", &window_min_width /*
|
|
|
5569 *Delete any window less than this wide.
|
|
|
5570 */ );
|
|
|
5571 window_min_width = 10;
|
|
|
5572
|
|
|
5573 {
|
|
|
5574 int i;
|
|
|
5575
|
|
|
5576 for (i = 0; i < countof (Vwindow_configuration_free_list); i++)
|
|
|
5577 {
|
|
|
5578 Vwindow_configuration_free_list[i] =
|
|
|
5579 make_lcrecord_list (sizeof_window_config_for_n_windows (i + 1),
|
|
|
5580 lrecord_window_configuration);
|
|
|
5581 staticpro (&Vwindow_configuration_free_list[i]);
|
|
|
5582 }
|
|
|
5583 }
|
|
|
5584 }
|
|
|
5585
|
|
|
5586 void
|
|
|
5587 specifier_vars_of_window (void)
|
|
|
5588 {
|
|
|
5589 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /*
|
|
|
5590 *How thick to draw 3D shadows around modelines.
|
|
|
5591 If this is set to 0, modelines will be the traditional 2D. Sizes above
|
|
|
5592 10 will be accepted but the maximum thickness that will be drawn is 10.
|
|
|
5593 This is a specifier; use `set-specifier' to change it.
|
|
|
5594 */ );
|
|
|
5595 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger);
|
|
|
5596 /* The initial value for modeline-shadow-thickness is 2, but if the
|
|
|
5597 user removes all specifications we provide a fallback value of 0,
|
|
|
5598 which is probably what was expected. */
|
|
|
5599 set_specifier_fallback (Vmodeline_shadow_thickness,
|
|
|
5600 list1 (Fcons (Qnil, Qzero)));
|
|
|
5601 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_int (2),
|
|
|
5602 Qnil, Qnil, Qnil);
|
|
|
5603 set_specifier_caching (Vmodeline_shadow_thickness,
|
|
|
5604 slot_offset (struct window,
|
|
|
5605 modeline_shadow_thickness),
|
|
|
5606 modeline_shadow_thickness_changed,
|
|
|
5607 0, 0);
|
|
380
|
5608
|
|
0
|
5609 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /*
|
|
|
5610 *Whether the modeline should be displayed.
|
|
|
5611 This is a specifier; use `set-specifier' to change it.
|
|
|
5612 */ );
|
|
|
5613 Vhas_modeline_p = Fmake_specifier (Qboolean);
|
|
|
5614 set_specifier_fallback (Vhas_modeline_p,
|
|
|
5615 list1 (Fcons (Qnil, Qt)));
|
|
|
5616 set_specifier_caching (Vhas_modeline_p,
|
|
|
5617 slot_offset (struct window,
|
|
|
5618 has_modeline_p),
|
|
|
5619 /* #### It's strange that we need a special
|
|
|
5620 flag to indicate that the shadow-thickness
|
|
|
5621 has changed, but not one to indicate that
|
|
|
5622 the modeline has been turned off or on. */
|
|
|
5623 some_window_value_changed,
|
|
|
5624 0, 0);
|
|
284
|
5625
|
|
298
|
5626 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p",
|
|
|
5627 &Vvertical_divider_always_visible_p /*
|
|
|
5628 *Should XEmacs always display vertical dividers between windows.
|
|
|
5629
|
|
|
5630 When this is non-nil, vertical dividers are always shown, and are
|
|
|
5631 draggable. When it is nil, vertical dividers are shown only when
|
|
|
5632 there are no scrollbars in between windows, and are not draggable.
|
|
|
5633
|
|
284
|
5634 This is a specifier; use `set-specifier' to change it.
|
|
|
5635 */ );
|
|
298
|
5636 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean);
|
|
|
5637 set_specifier_fallback (Vvertical_divider_always_visible_p,
|
|
284
|
5638 list1 (Fcons (Qnil, Qt)));
|
|
298
|
5639 set_specifier_caching (Vvertical_divider_always_visible_p,
|
|
284
|
5640 slot_offset (struct window,
|
|
298
|
5641 vertical_divider_always_visible_p),
|
|
284
|
5642 vertical_divider_changed_in_window,
|
|
|
5643 0, 0);
|
|
|
5644
|
|
|
5645 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /*
|
|
380
|
5646 *How thick to draw 3D shadows around vertical dividers.
|
|
284
|
5647 This is a specifier; use `set-specifier' to change it.
|
|
|
5648 */ );
|
|
|
5649 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger);
|
|
|
5650 set_specifier_fallback (Vvertical_divider_shadow_thickness,
|
|
|
5651 list1 (Fcons (Qnil, Qzero)));
|
|
|
5652 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_int (2),
|
|
|
5653 Qnil, Qnil, Qnil);
|
|
|
5654 set_specifier_caching (Vvertical_divider_shadow_thickness,
|
|
|
5655 slot_offset (struct window,
|
|
|
5656 vertical_divider_shadow_thickness),
|
|
|
5657 vertical_divider_changed_in_window,
|
|
|
5658 0, 0);
|
|
|
5659 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /*
|
|
|
5660 *The width of the vertical dividers, not including shadows.
|
|
|
5661
|
|
298
|
5662 For TTY windows, divider line is always one character wide. When
|
|
284
|
5663 instance of this specifier is zero in a TTY window, no divider is
|
|
298
|
5664 drawn at all between windows. When non-zero, a one character wide
|
|
284
|
5665 divider is displayed.
|
|
|
5666
|
|
|
5667 This is a specifier; use `set-specifier' to change it.
|
|
|
5668 */ );
|
|
|
5669
|
|
|
5670 Vvertical_divider_line_width = Fmake_specifier (Qnatnum);
|
|
|
5671 {
|
|
|
5672 Lisp_Object fb = Qnil;
|
|
|
5673 #ifdef HAVE_TTY
|
|
375
|
5674 fb = Fcons (Fcons (list1 (Qtty), make_int (1)), fb);
|
|
284
|
5675 #endif
|
|
|
5676 #ifdef HAVE_X_WINDOWS
|
|
|
5677 fb = Fcons (Fcons (list1 (Qx), make_int (3)), fb);
|
|
|
5678 #endif
|
|
|
5679 #ifdef HAVE_MS_WINDOWS
|
|
|
5680 /* #### This should be made magic and made to obey system settings */
|
|
|
5681 fb = Fcons (Fcons (list1 (Qmswindows), make_int (3)), fb);
|
|
|
5682 #endif
|
|
|
5683 set_specifier_fallback (Vvertical_divider_line_width, fb);
|
|
|
5684 }
|
|
|
5685 set_specifier_caching (Vvertical_divider_line_width,
|
|
|
5686 slot_offset (struct window,
|
|
|
5687 vertical_divider_line_width),
|
|
|
5688 vertical_divider_changed_in_window,
|
|
|
5689 0, 0);
|
|
|
5690
|
|
|
5691 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /*
|
|
|
5692 *How much space to leave around the vertical dividers.
|
|
|
5693
|
|
|
5694 In TTY windows, spacing is always zero, and the value of this
|
|
|
5695 specifier is ignored.
|
|
|
5696
|
|
|
5697 This is a specifier; use `set-specifier' to change it.
|
|
|
5698 */ );
|
|
|
5699 Vvertical_divider_spacing = Fmake_specifier (Qnatnum);
|
|
|
5700 {
|
|
|
5701 Lisp_Object fb = Qnil;
|
|
|
5702 #ifdef HAVE_TTY
|
|
|
5703 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb);
|
|
|
5704 #endif
|
|
|
5705 #ifdef HAVE_X_WINDOWS
|
|
|
5706 /* #### 3D dividers look great on MS Windows with spacing = 0.
|
|
286
|
5707 Should not the same value be the fallback under X? - kkm */
|
|
284
|
5708 fb = Fcons (Fcons (list1 (Qx), make_int (2)), fb);
|
|
|
5709 #endif
|
|
|
5710 #ifdef HAVE_MS_WINDOWS
|
|
|
5711 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb);
|
|
|
5712 #endif
|
|
|
5713 set_specifier_fallback (Vvertical_divider_spacing, fb);
|
|
|
5714 }
|
|
|
5715 set_specifier_caching (Vvertical_divider_spacing,
|
|
|
5716 slot_offset (struct window,
|
|
|
5717 vertical_divider_spacing),
|
|
|
5718 vertical_divider_changed_in_window,
|
|
|
5719 0, 0);
|
|
0
|
5720 }
|
