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