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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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83 /* Spacing between outer egde of divider border and window edge */
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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
|
|
|
1344 CHECK_WINDOW (window);
|
|
|
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.
|
|
|
1549 For a nonselected window, this is the value point would have
|
|
|
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. */
|
|
|
1636 w->start_at_line_beg = 0;
|
|
|
1637 if (NILP (noforce))
|
|
|
1638 w->force_start = 1;
|
|
|
1639 w->redo_modeline = 1;
|
|
|
1640 SET_LAST_MODIFIED (w, 0);
|
|
|
1641 SET_LAST_FACECHANGE (w);
|
|
|
1642
|
|
|
1643 MARK_WINDOWS_CHANGED (w);
|
|
|
1644
|
|
|
1645 return pos;
|
|
|
1646 }
|
|
|
1647
|
|
20
|
1648 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, 1, 1, 0, /*
|
|
0
|
1649 Return WINDOW's dedicated object, usually t or nil.
|
|
|
1650 See also `set-window-dedicated-p'.
|
|
20
|
1651 */
|
|
|
1652 (window))
|
|
0
|
1653 {
|
|
|
1654 return decode_window (window)->dedicated;
|
|
|
1655 }
|
|
|
1656
|
|
20
|
1657 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, 2, 2, 0, /*
|
|
0
|
1658 Control whether WINDOW is dedicated to the buffer it displays.
|
|
|
1659 If it is dedicated, Emacs will not automatically change
|
|
|
1660 which buffer appears in it.
|
|
|
1661 The second argument is the new value for the dedication flag;
|
|
|
1662 non-nil means yes.
|
|
20
|
1663 */
|
|
|
1664 (window, arg))
|
|
0
|
1665 {
|
|
272
|
1666 struct window *w = decode_window (window);
|
|
0
|
1667
|
|
149
|
1668 w->dedicated = NILP (arg) ? Qnil : Qt;
|
|
0
|
1669
|
|
|
1670 return w->dedicated;
|
|
|
1671 }
|
|
|
1672
|
|
|
1673 /* FSFmacs has window-display-table here. We have display table as a
|
|
|
1674 specifier. */
|
|
|
1675
|
|
|
1676
|
|
|
1677 /* Record info on buffer window w is displaying
|
|
|
1678 when it is about to cease to display that buffer. */
|
|
|
1679 static void
|
|
|
1680 unshow_buffer (struct window *w)
|
|
|
1681 {
|
|
|
1682 Lisp_Object buf = w->buffer;
|
|
|
1683
|
|
|
1684 if (XBUFFER (buf) != XMARKER (w->pointm[CURRENT_DISP])->buffer)
|
|
|
1685 abort ();
|
|
|
1686
|
|
|
1687 /* FSF disables this check, so I'll do it too. I hope it won't
|
|
|
1688 break things. --ben */
|
|
|
1689 #if 0
|
|
|
1690 if (w == XWINDOW (Fselected_window (Qnil))
|
|
|
1691 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
|
1692 /* Do this except when the selected window's buffer
|
|
|
1693 is being removed from some other window. */
|
|
|
1694 #endif
|
|
|
1695 /* last_window_start records the start position that this buffer
|
|
|
1696 had in the last window to be disconnected from it.
|
|
|
1697 Now that this statement is unconditional,
|
|
|
1698 it is possible for the buffer to be displayed in the
|
|
|
1699 selected window, while last_window_start reflects another
|
|
|
1700 window which was recently showing the same buffer.
|
|
|
1701 Some people might say that might be a good thing. Let's see. */
|
|
|
1702 XBUFFER (buf)->last_window_start =
|
|
|
1703 marker_position (w->start[CURRENT_DISP]);
|
|
|
1704
|
|
|
1705 /* Point in the selected window's buffer
|
|
|
1706 is actually stored in that buffer, and the window's pointm isn't used.
|
|
|
1707 So don't clobber point in that buffer. */
|
|
|
1708 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
|
1709 {
|
|
|
1710 struct buffer *b= XBUFFER (buf);
|
|
|
1711 BUF_SET_PT (b, bufpos_clip_to_bounds (BUF_BEGV (b),
|
|
|
1712 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
1713 BUF_ZV (b)));
|
|
|
1714 }
|
|
|
1715 }
|
|
|
1716
|
|
|
1717 /* Put REPLACEMENT into the window structure in place of OLD. */
|
|
|
1718 static void
|
|
|
1719 replace_window (Lisp_Object old, Lisp_Object replacement)
|
|
|
1720 {
|
|
|
1721 Lisp_Object tem;
|
|
|
1722 struct window *o = XWINDOW (old), *p = XWINDOW (replacement);
|
|
|
1723
|
|
|
1724 /* If OLD is its frame's root_window, then replacement is the new
|
|
|
1725 root_window for that frame. */
|
|
|
1726
|
|
|
1727 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame))))
|
|
|
1728 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement;
|
|
|
1729
|
|
|
1730 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
1731 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
1732 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
1733 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
1734
|
|
|
1735 p->next = tem = o->next;
|
|
|
1736 if (!NILP (tem))
|
|
|
1737 XWINDOW (tem)->prev = replacement;
|
|
|
1738
|
|
|
1739 p->prev = tem = o->prev;
|
|
|
1740 if (!NILP (tem))
|
|
|
1741 XWINDOW (tem)->next = replacement;
|
|
|
1742
|
|
|
1743 p->parent = tem = o->parent;
|
|
|
1744 if (!NILP (tem))
|
|
|
1745 {
|
|
|
1746 if (EQ (XWINDOW (tem)->vchild, old))
|
|
|
1747 XWINDOW (tem)->vchild = replacement;
|
|
|
1748 if (EQ (XWINDOW (tem)->hchild, old))
|
|
|
1749 XWINDOW (tem)->hchild = replacement;
|
|
|
1750 }
|
|
|
1751
|
|
|
1752 /* #### Here, if replacement is a vertical combination
|
|
|
1753 and so is its new parent, we should make replacement's
|
|
|
1754 children be children of that parent instead. */
|
|
|
1755 }
|
|
|
1756
|
|
|
1757 /* we're deleting W; set the structure of W to indicate this. */
|
|
|
1758
|
|
|
1759 static void
|
|
|
1760 mark_window_as_deleted (struct window *w)
|
|
|
1761 {
|
|
|
1762 /* In the loop
|
|
|
1763 (while t (split-window) (delete-window))
|
|
|
1764 we end up with a tree of deleted windows which are all connected
|
|
|
1765 through the `next' slot. This might not seem so bad, as they're
|
|
|
1766 deleted, and will presumably be GCed - but if even *one* of those
|
|
|
1767 windows is still being pointed to, by the user, or by a window
|
|
|
1768 configuration, then *all* of those windows stick around.
|
|
|
1769
|
|
|
1770 Since the window-configuration code doesn't need any of the
|
|
|
1771 pointers to other windows (they are all recreated from the
|
|
|
1772 window-config data), we set them all to nil so that we
|
|
|
1773 are able to collect more actual garbage.
|
|
|
1774 */
|
|
|
1775 w->next = Qnil;
|
|
|
1776 w->prev = Qnil;
|
|
|
1777 w->hchild = Qnil;
|
|
|
1778 w->vchild = Qnil;
|
|
|
1779 w->parent = Qnil;
|
|
|
1780
|
|
|
1781 w->dead = 1;
|
|
|
1782
|
|
|
1783 /* Free the extra data structures attached to windows immediately so
|
|
|
1784 they don't sit around consuming excess space. They will be
|
|
|
1785 reinitialized by the window-configuration code as necessary. */
|
|
|
1786 finalize_window ((void *) w, 0);
|
|
|
1787 }
|
|
|
1788
|
|
20
|
1789 DEFUN ("delete-window", Fdelete_window, 0, 2, "", /*
|
|
0
|
1790 Remove WINDOW from the display. Default is selected window.
|
|
|
1791 If window is the only one on the frame, the frame is destroyed.
|
|
|
1792 Normally, you cannot delete the last non-minibuffer-only frame (you must
|
|
|
1793 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional
|
|
|
1794 second argument FORCE is non-nil, you can delete the last frame. (This
|
|
|
1795 will automatically call `save-buffers-kill-emacs'.)
|
|
20
|
1796 */
|
|
|
1797 (window, force))
|
|
0
|
1798 {
|
|
|
1799 /* This function can GC if this is the only window in the frame */
|
|
|
1800 struct window *w;
|
|
|
1801 Lisp_Object parent;
|
|
|
1802 struct window *par;
|
|
|
1803 Lisp_Object frame;
|
|
|
1804 struct frame *f;
|
|
|
1805 struct device *d;
|
|
|
1806
|
|
|
1807 /* Note: this function is called by other C code on non-leaf
|
|
|
1808 windows. */
|
|
|
1809
|
|
|
1810 /* Do the equivalent of decode_window() but don't error out on
|
|
|
1811 deleted window; it's OK to delete an already-deleted window. */
|
|
|
1812 if (NILP (window))
|
|
|
1813 window = Fselected_window (Qnil);
|
|
|
1814 else
|
|
|
1815 CHECK_WINDOW (window);
|
|
|
1816 w = XWINDOW (window);
|
|
|
1817
|
|
|
1818 /* It's okay to delete an already-deleted window. */
|
|
|
1819 if (! WINDOW_LIVE_P (w))
|
|
|
1820 return Qnil;
|
|
|
1821
|
|
|
1822 frame = WINDOW_FRAME (w);
|
|
|
1823 f = XFRAME (frame);
|
|
|
1824 d = XDEVICE (FRAME_DEVICE (f));
|
|
|
1825
|
|
|
1826 if (TOP_LEVEL_WINDOW_P (w))
|
|
|
1827 {
|
|
|
1828 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d))))
|
|
|
1829 /* this frame isn't fully initialized yet; don't blow up. */
|
|
|
1830 return Qnil;
|
|
|
1831
|
|
|
1832 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
1833 error ("Attempt to delete the minibuffer window");
|
|
|
1834
|
|
|
1835 /* It has been suggested that it's a good thing for C-x 0 to have this
|
|
|
1836 behavior, but not such a good idea for #'delete-window to have it.
|
|
|
1837 Maybe C-x 0 should be bound to something else, or maybe frame
|
|
|
1838 deletion should only happen when this is called interactively.
|
|
|
1839 */
|
|
|
1840 delete_frame_internal (f, !NILP (force), 0, 0);
|
|
|
1841 return Qnil;
|
|
|
1842 }
|
|
|
1843
|
|
|
1844 /* At this point, we know the window has a parent. */
|
|
|
1845 parent = w->parent;
|
|
|
1846 par = XWINDOW (parent);
|
|
|
1847
|
|
|
1848 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
1849
|
|
|
1850 /* Are we trying to delete any frame's selected window?
|
|
|
1851 Note that we could be dealing with a non-leaf window
|
|
|
1852 where the selected window is one of our children.
|
|
|
1853 So, we check by scanning all the ancestors of the
|
|
|
1854 frame's selected window and comparing each one with
|
|
|
1855 WINDOW. */
|
|
|
1856 {
|
|
|
1857 Lisp_Object pwindow;
|
|
185
|
1858
|
|
0
|
1859 pwindow = FRAME_SELECTED_WINDOW (f);
|
|
185
|
1860
|
|
0
|
1861 while (!NILP (pwindow))
|
|
|
1862 {
|
|
|
1863 if (EQ (window, pwindow))
|
|
|
1864 break;
|
|
|
1865 pwindow = XWINDOW (pwindow)->parent;
|
|
|
1866 }
|
|
|
1867
|
|
|
1868 if (EQ (window, pwindow))
|
|
|
1869 {
|
|
|
1870 /* OK, we found it. */
|
|
|
1871 Lisp_Object alternative;
|
|
|
1872 alternative = Fnext_window (window, Qlambda, Qnil, Qnil);
|
|
185
|
1873
|
|
0
|
1874 /* If we're about to delete the selected window on the
|
|
|
1875 selected frame, then we should use Fselect_window to select
|
|
|
1876 the new window. On the other hand, if we're about to
|
|
|
1877 delete the selected window on any other frame, we shouldn't do
|
|
|
1878 anything but set the frame's selected_window slot. */
|
|
|
1879 if (EQ (frame, Fselected_frame (Qnil)))
|
|
282
|
1880 Fselect_window (alternative, Qnil);
|
|
0
|
1881 else
|
|
|
1882 set_frame_selected_window (f, alternative);
|
|
|
1883 }
|
|
|
1884 }
|
|
|
1885
|
|
|
1886 /* w->buffer is nil in a non-leaf window; in this case,
|
|
|
1887 get rid of the markers we maintain that point into that buffer. */
|
|
|
1888 if (!NILP (w->buffer))
|
|
|
1889 {
|
|
|
1890 unshow_buffer (w);
|
|
|
1891 unchain_marker (w->pointm[CURRENT_DISP]);
|
|
|
1892 unchain_marker (w->pointm[DESIRED_DISP]);
|
|
|
1893 unchain_marker (w->pointm[CMOTION_DISP]);
|
|
|
1894 unchain_marker (w->start[CURRENT_DISP]);
|
|
|
1895 unchain_marker (w->start[DESIRED_DISP]);
|
|
|
1896 unchain_marker (w->start[CMOTION_DISP]);
|
|
|
1897 unchain_marker (w->sb_point);
|
|
|
1898 /* This breaks set-window-configuration if windows in the saved
|
|
|
1899 configuration get deleted and multiple frames are in use. */
|
|
|
1900 /* w->buffer = Qnil; */
|
|
|
1901 }
|
|
185
|
1902
|
|
0
|
1903 /* close up the hole in the sibling list */
|
|
|
1904 if (!NILP (w->next))
|
|
|
1905 XWINDOW (w->next)->prev = w->prev;
|
|
|
1906 if (!NILP (w->prev))
|
|
|
1907 XWINDOW (w->prev)->next = w->next;
|
|
|
1908 if (EQ (window, par->hchild))
|
|
|
1909 par->hchild = w->next;
|
|
|
1910 if (EQ (window, par->vchild))
|
|
|
1911 par->vchild = w->next;
|
|
|
1912
|
|
|
1913 /* Find one of our siblings to give our space to. */
|
|
|
1914 {
|
|
|
1915 Lisp_Object sib = w->prev;
|
|
|
1916 if (NILP (sib))
|
|
|
1917 {
|
|
|
1918 /* If w gives its space to its next sibling, that sibling needs
|
|
|
1919 to have its top/left side pulled back to where w's is.
|
|
|
1920 set_window_{height,width} will re-position the sibling's
|
|
|
1921 children. */
|
|
|
1922 sib = w->next;
|
|
|
1923 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w);
|
|
|
1924 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w);
|
|
|
1925 }
|
|
185
|
1926
|
|
0
|
1927 /* Stretch that sibling. */
|
|
|
1928 if (!NILP (par->vchild))
|
|
|
1929 set_window_pixheight
|
|
|
1930 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1);
|
|
|
1931 if (!NILP (par->hchild))
|
|
|
1932 set_window_pixwidth
|
|
|
1933 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1);
|
|
|
1934 }
|
|
|
1935
|
|
|
1936 /* If parent now has only one child,
|
|
|
1937 put the child into the parent's place. */
|
|
|
1938 {
|
|
|
1939 Lisp_Object parchild = par->hchild;
|
|
|
1940 if (NILP (parchild))
|
|
|
1941 parchild = par->vchild;
|
|
|
1942 if (NILP (XWINDOW (parchild)->next))
|
|
|
1943 {
|
|
|
1944 replace_window (parent, parchild);
|
|
|
1945 mark_window_as_deleted (XWINDOW (parent));
|
|
|
1946 }
|
|
|
1947 }
|
|
|
1948
|
|
|
1949 /* Since we may be deleting combination windows, we must make sure that
|
|
|
1950 not only W but all its children have been marked as deleted. */
|
|
|
1951 if (!NILP (w->hchild))
|
|
|
1952 delete_all_subwindows (XWINDOW (w->hchild));
|
|
|
1953 else if (!NILP (w->vchild))
|
|
|
1954 delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
1955
|
|
|
1956 mark_window_as_deleted (w);
|
|
|
1957
|
|
|
1958 f->mirror_dirty = 1;
|
|
|
1959 return Qnil;
|
|
|
1960 }
|
|
|
1961
|
|
|
1962
|
|
20
|
1963 DEFUN ("next-window", Fnext_window, 0, 4, 0, /*
|
|
0
|
1964 Return next window after WINDOW in canonical ordering of windows.
|
|
|
1965 If omitted, WINDOW defaults to the selected window.
|
|
|
1966
|
|
|
1967 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
1968 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
1969 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
1970 minibuffer even if it is active.
|
|
|
1971
|
|
|
1972 Several frames may share a single minibuffer; if the minibuffer
|
|
|
1973 counts, all windows on all frames that share that minibuffer count
|
|
|
1974 too. Therefore, `next-window' can be used to iterate through the
|
|
|
1975 set of windows even when the minibuffer is on another frame. If the
|
|
|
1976 minibuffer does not count, only windows from WINDOW's frame count.
|
|
|
1977
|
|
|
1978 Optional third arg ALL-FRAMES t means include windows on all frames.
|
|
|
1979 ALL-FRAMES nil or omitted means cycle within the frames as specified
|
|
|
1980 above. ALL-FRAMES = `visible' means include windows on all visible frames.
|
|
|
1981 ALL-FRAMES = 0 means include windows on all visible and iconified frames.
|
|
|
1982 If ALL-FRAMES is a frame, restrict search to windows on that frame.
|
|
|
1983 Anything else means restrict to WINDOW's frame.
|
|
|
1984
|
|
|
1985 Optional fourth argument CONSOLE controls which consoles or devices the
|
|
|
1986 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
1987 on that console. If CONSOLE is a device, return windows only on that
|
|
|
1988 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
1989 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
1990 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
1991 on WINDOW's console. Otherwise, all windows are considered.
|
|
|
1992
|
|
|
1993 If you use consistent values for MINIBUF, ALL-FRAMES, and CONSOLE, you
|
|
|
1994 can use `next-window' to iterate through the entire cycle of acceptable
|
|
|
1995 windows, eventually ending up back at the window you started with.
|
|
|
1996 `previous-window' traverses the same cycle, in the reverse order.
|
|
20
|
1997 */
|
|
70
|
1998 (window, minibuf, all_frames, console))
|
|
0
|
1999 {
|
|
|
2000 Lisp_Object tem;
|
|
|
2001 Lisp_Object start_window;
|
|
|
2002
|
|
|
2003 if (NILP (window))
|
|
|
2004 window = Fselected_window (Qnil);
|
|
|
2005 else
|
|
|
2006 CHECK_LIVE_WINDOW (window);
|
|
|
2007
|
|
|
2008 start_window = window;
|
|
|
2009
|
|
|
2010 /* minibuf == nil may or may not include minibuffers.
|
|
|
2011 Decide if it does. */
|
|
|
2012 if (NILP (minibuf))
|
|
|
2013 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
2014 else if (! EQ (minibuf, Qt))
|
|
|
2015 minibuf = Qlambda;
|
|
|
2016 /* Now minibuf can be t => count all minibuffer windows,
|
|
|
2017 lambda => count none of them,
|
|
|
2018 or a specific minibuffer window (the active one) to count. */
|
|
|
2019
|
|
|
2020 /* all_frames == nil doesn't specify which frames to include. */
|
|
|
2021 if (NILP (all_frames))
|
|
|
2022 all_frames = (! EQ (minibuf, Qlambda)
|
|
|
2023 ? (FRAME_MINIBUF_WINDOW
|
|
|
2024 (XFRAME
|
|
|
2025 (WINDOW_FRAME
|
|
|
2026 (XWINDOW (window)))))
|
|
|
2027 : Qnil);
|
|
|
2028 else if (EQ (all_frames, Qvisible))
|
|
|
2029 ;
|
|
|
2030 else if (ZEROP (all_frames))
|
|
|
2031 ;
|
|
|
2032 else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window)))
|
|
|
2033 /* If all_frames is a frame and window arg isn't on that frame, just
|
|
|
2034 return the first window on the frame. */
|
|
|
2035 return frame_first_window (XFRAME (all_frames));
|
|
|
2036 else if (! EQ (all_frames, Qt))
|
|
|
2037 all_frames = Qnil;
|
|
|
2038 /* Now all_frames is t meaning search all frames,
|
|
|
2039 nil meaning search just current frame,
|
|
|
2040 visible meaning search just visible frames,
|
|
|
2041 0 meaning search visible and iconified frames,
|
|
|
2042 or a window, meaning search the frame that window belongs to. */
|
|
|
2043
|
|
|
2044 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2045 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2046 do
|
|
|
2047 {
|
|
|
2048 /* Find a window that actually has a next one. This loop
|
|
|
2049 climbs up the tree. */
|
|
|
2050 while (tem = XWINDOW (window)->next, NILP (tem))
|
|
|
2051 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2052 window = tem;
|
|
|
2053 else /* window must be minibuffer window now */
|
|
|
2054 {
|
|
|
2055 /* We've reached the end of this frame.
|
|
|
2056 Which other frames are acceptable? */
|
|
|
2057 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2058
|
|
|
2059 if (! NILP (all_frames))
|
|
|
2060 {
|
|
|
2061 Lisp_Object tem1;
|
|
|
2062
|
|
|
2063 tem1 = tem;
|
|
|
2064 tem = next_frame (tem, all_frames, console);
|
|
|
2065 /* In the case where the minibuffer is active,
|
|
|
2066 and we include its frame as well as the selected one,
|
|
|
2067 next_frame may get stuck in that frame.
|
|
|
2068 If that happens, go back to the selected frame
|
|
|
2069 so we can complete the cycle. */
|
|
|
2070 if (EQ (tem, tem1))
|
|
|
2071 XSETFRAME (tem, selected_frame ());
|
|
|
2072 }
|
|
|
2073
|
|
|
2074 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2075 break;
|
|
|
2076 }
|
|
|
2077
|
|
|
2078 window = tem;
|
|
|
2079
|
|
|
2080 /* If we're in a combination window, find its first child and
|
|
|
2081 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2082 while (1)
|
|
|
2083 {
|
|
|
2084 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2085 window = XWINDOW (window)->hchild;
|
|
|
2086 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2087 window = XWINDOW (window)->vchild;
|
|
|
2088 else break;
|
|
|
2089 }
|
|
|
2090 }
|
|
|
2091 /* "acceptable" is the correct spelling. */
|
|
|
2092 /* Which windows are acceptable?
|
|
|
2093 Exit the loop and accept this window if
|
|
|
2094 this isn't a minibuffer window,
|
|
|
2095 or we're accepting all minibuffer windows,
|
|
|
2096 or this is the active minibuffer and we are accepting that one, or
|
|
|
2097 we've come all the way around and we're back at the original window. */
|
|
|
2098 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2099 && ! EQ (minibuf, Qt)
|
|
|
2100 && ! EQ (minibuf, window)
|
|
|
2101 && ! EQ (window, start_window));
|
|
|
2102
|
|
|
2103 return window;
|
|
|
2104 }
|
|
|
2105
|
|
20
|
2106 DEFUN ("previous-window", Fprevious_window, 0, 4, 0, /*
|
|
110
|
2107 Return the window preceding WINDOW in canonical ordering of windows.
|
|
0
|
2108 If omitted, WINDOW defaults to the selected window.
|
|
|
2109
|
|
|
2110 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
2111 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
2112 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
2113 minibuffer even if it is active.
|
|
|
2114
|
|
|
2115 Several frames may share a single minibuffer; if the minibuffer
|
|
|
2116 counts, all windows on all frames that share that minibuffer count
|
|
|
2117 too. Therefore, `previous-window' can be used to iterate through
|
|
|
2118 the set of windows even when the minibuffer is on another frame. If
|
|
|
2119 the minibuffer does not count, only windows from WINDOW's frame count
|
|
|
2120
|
|
|
2121 If optional third arg ALL-FRAMES t means include windows on all frames.
|
|
|
2122 ALL-FRAMES nil or omitted means cycle within the frames as specified
|
|
|
2123 above. ALL-FRAMES = `visible' means include windows on all visible frames.
|
|
|
2124 ALL-FRAMES = 0 means include windows on all visible and iconified frames.
|
|
|
2125 If ALL-FRAMES is a frame, restrict search to windows on that frame.
|
|
|
2126 Anything else means restrict to WINDOW's frame.
|
|
|
2127
|
|
|
2128 Optional fourth argument CONSOLE controls which consoles or devices the
|
|
|
2129 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2130 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2131 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2132 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2133 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2134 on WINDOW's console. Otherwise, all windows are considered.
|
|
|
2135
|
|
|
2136 If you use consistent values for MINIBUF, ALL-FRAMES, and CONSOLE, you
|
|
|
2137 can use `previous-window' to iterate through the entire cycle of acceptable
|
|
|
2138 windows, eventually ending up back at the window you started with.
|
|
|
2139 `next-window' traverses the same cycle, in the reverse order.
|
|
20
|
2140 */
|
|
70
|
2141 (window, minibuf, all_frames, console))
|
|
0
|
2142 {
|
|
|
2143 Lisp_Object tem;
|
|
|
2144 Lisp_Object start_window;
|
|
|
2145
|
|
|
2146 if (NILP (window))
|
|
|
2147 window = Fselected_window (Qnil);
|
|
|
2148 else
|
|
|
2149 CHECK_LIVE_WINDOW (window);
|
|
|
2150
|
|
|
2151 start_window = window;
|
|
|
2152
|
|
|
2153 /* minibuf == nil may or may not include minibuffers.
|
|
|
2154 Decide if it does. */
|
|
|
2155 if (NILP (minibuf))
|
|
|
2156 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
2157 else if (! EQ (minibuf, Qt))
|
|
|
2158 minibuf = Qlambda;
|
|
|
2159 /* Now minibuf can be t => count all minibuffer windows,
|
|
|
2160 lambda => count none of them,
|
|
|
2161 or a specific minibuffer window (the active one) to count. */
|
|
|
2162
|
|
|
2163 /* all_frames == nil doesn't specify which frames to include.
|
|
|
2164 Decide which frames it includes. */
|
|
|
2165 if (NILP (all_frames))
|
|
|
2166 all_frames = (! EQ (minibuf, Qlambda)
|
|
|
2167 ? (FRAME_MINIBUF_WINDOW
|
|
|
2168 (XFRAME
|
|
|
2169 (WINDOW_FRAME
|
|
|
2170 (XWINDOW (window)))))
|
|
|
2171 : Qnil);
|
|
|
2172 else if (EQ (all_frames, Qvisible))
|
|
|
2173 ;
|
|
|
2174 else if (ZEROP (all_frames))
|
|
|
2175 ;
|
|
|
2176 else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window)))
|
|
|
2177 /* If all_frames is a frame and window arg isn't on that frame, just
|
|
|
2178 return the first window on the frame. */
|
|
|
2179 return frame_first_window (XFRAME (all_frames));
|
|
|
2180 else if (! EQ (all_frames, Qt))
|
|
|
2181 all_frames = Qnil;
|
|
|
2182 /* Now all_frames is t meaning search all frames,
|
|
|
2183 nil meaning search just current frame,
|
|
|
2184 visible meaning search just visible frames,
|
|
|
2185 0 meaning search visible and iconified frames,
|
|
|
2186 or a window, meaning search the frame that window belongs to. */
|
|
|
2187
|
|
|
2188 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2189 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2190 do
|
|
|
2191 {
|
|
|
2192 /* Find a window that actually has a next one. This loop
|
|
|
2193 climbs up the tree. */
|
|
|
2194 while (tem = XWINDOW (window)->prev, NILP (tem))
|
|
|
2195 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2196 window = tem;
|
|
|
2197 else /* window must be minibuffer window now */
|
|
|
2198 {
|
|
|
2199 /* We have found the top window on the frame.
|
|
|
2200 Which frames are acceptable? */
|
|
|
2201 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2202
|
|
|
2203 if (! NILP (all_frames))
|
|
|
2204 /* It's actually important that we use prev_frame here,
|
|
|
2205 rather than next_frame. All the windows acceptable
|
|
|
2206 according to the given parameters should form a ring;
|
|
|
2207 Fnext_window and Fprevious_window should go back and
|
|
|
2208 forth around the ring. If we use next_frame here,
|
|
|
2209 then Fnext_window and Fprevious_window take different
|
|
|
2210 paths through the set of acceptable windows.
|
|
|
2211 window_loop assumes that these `ring' requirement are
|
|
|
2212 met. */
|
|
|
2213 {
|
|
|
2214 Lisp_Object tem1;
|
|
|
2215
|
|
|
2216 tem1 = tem;
|
|
|
2217 tem = prev_frame (tem, all_frames, console);
|
|
|
2218 /* In the case where the minibuffer is active,
|
|
|
2219 and we include its frame as well as the selected one,
|
|
|
2220 next_frame may get stuck in that frame.
|
|
|
2221 If that happens, go back to the selected frame
|
|
|
2222 so we can complete the cycle. */
|
|
|
2223 if (EQ (tem, tem1))
|
|
|
2224 XSETFRAME (tem, selected_frame ());
|
|
|
2225 }
|
|
|
2226
|
|
|
2227 /* If this frame has a minibuffer, find that window first,
|
|
|
2228 because it is conceptually the last window in that frame. */
|
|
|
2229 if (FRAME_HAS_MINIBUF_P (XFRAME (tem)))
|
|
|
2230 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem));
|
|
|
2231 else
|
|
|
2232 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2233
|
|
|
2234 break;
|
|
|
2235 }
|
|
|
2236
|
|
|
2237 window = tem;
|
|
|
2238
|
|
|
2239 /* If we're in a combination window, find its first child and
|
|
|
2240 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2241 while (1)
|
|
|
2242 {
|
|
|
2243 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2244 window = XWINDOW (window)->hchild;
|
|
|
2245 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2246 window = XWINDOW (window)->vchild;
|
|
|
2247 else break;
|
|
|
2248 while (tem = XWINDOW (window)->next, !NILP (tem))
|
|
|
2249 window = tem;
|
|
|
2250 }
|
|
|
2251 }
|
|
|
2252 /* Which windows are acceptable?
|
|
|
2253 Exit the loop and accept this window if
|
|
|
2254 this isn't a minibuffer window,
|
|
|
2255 or we're accepting all minibuffer windows,
|
|
|
2256 or this is the active minibuffer and we are accepting that one, or
|
|
|
2257 we've come all the way around and we're back at the original window. */
|
|
|
2258 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2259 && ! EQ (minibuf, Qt)
|
|
|
2260 && ! EQ (minibuf, window)
|
|
|
2261 && ! EQ (window, start_window));
|
|
|
2262
|
|
|
2263 return window;
|
|
|
2264 }
|
|
|
2265
|
|
20
|
2266 DEFUN ("next-vertical-window", Fnext_vertical_window, 0, 1, 0, /*
|
|
0
|
2267 Return the next window which is vertically after WINDOW.
|
|
20
|
2268 */
|
|
|
2269 (window))
|
|
0
|
2270 {
|
|
|
2271 Lisp_Object root;
|
|
|
2272 struct window *w = decode_window (window);
|
|
|
2273 XSETWINDOW (window, w);
|
|
|
2274
|
|
|
2275 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
2276 return Qnil;
|
|
|
2277
|
|
|
2278 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window))));
|
|
|
2279
|
|
|
2280 if (EQ (window, root))
|
|
|
2281 {
|
|
|
2282 while (1)
|
|
|
2283 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2284 window = XWINDOW (window)->hchild;
|
|
|
2285 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2286 window = XWINDOW (window)->vchild;
|
|
|
2287 else
|
|
|
2288 return window;
|
|
|
2289 }
|
|
|
2290
|
|
|
2291 do
|
|
|
2292 {
|
|
|
2293 if (!NILP (XWINDOW (window)->parent) &&
|
|
|
2294 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild))
|
|
|
2295 {
|
|
|
2296 if (!NILP (XWINDOW (window)->next))
|
|
|
2297 return XWINDOW (window)->next;
|
|
|
2298 else
|
|
|
2299 window = XWINDOW (window)->parent;
|
|
|
2300 }
|
|
|
2301 else
|
|
|
2302 window = XWINDOW (window)->parent;
|
|
|
2303 }
|
|
|
2304 while (!EQ (window, root));
|
|
|
2305
|
|
|
2306 while (1)
|
|
|
2307 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2308 window = XWINDOW (window)->hchild;
|
|
|
2309 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2310 window = XWINDOW (window)->vchild;
|
|
|
2311 else
|
|
|
2312 return window;
|
|
|
2313 }
|
|
|
2314
|
|
20
|
2315 DEFUN ("other-window", Fother_window, 1, 3, "p", /*
|
|
0
|
2316 Select the N'th different window on this frame.
|
|
|
2317 All windows on current frame are arranged in a cyclic order.
|
|
|
2318 This command selects the window N steps away in that order.
|
|
|
2319 A negative N moves in the opposite order.
|
|
|
2320
|
|
|
2321 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2322 If FRAME is 0, search all visible and iconified frames.
|
|
|
2323 If FRAME is t, search all frames.
|
|
|
2324 If FRAME is nil, search only the selected frame.
|
|
|
2325 If FRAME is a frame, search only that frame.
|
|
|
2326
|
|
|
2327 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2328 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2329 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2330 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2331 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2332 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2333 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2334 Otherwise, all windows are considered.
|
|
20
|
2335 */
|
|
|
2336 (n, frame, console))
|
|
0
|
2337 {
|
|
|
2338 int i;
|
|
|
2339 Lisp_Object w;
|
|
|
2340
|
|
|
2341 CHECK_INT (n);
|
|
|
2342 w = Fselected_window (Qnil);
|
|
|
2343 i = XINT (n);
|
|
|
2344
|
|
|
2345 while (i > 0)
|
|
|
2346 {
|
|
|
2347 w = Fnext_window (w, Qnil, frame, console);
|
|
|
2348 i--;
|
|
|
2349 }
|
|
|
2350 while (i < 0)
|
|
|
2351 {
|
|
|
2352 w = Fprevious_window (w, Qnil, frame, console);
|
|
|
2353 i++;
|
|
|
2354 }
|
|
282
|
2355 Fselect_window (w, Qnil);
|
|
0
|
2356 return Qnil;
|
|
|
2357 }
|
|
|
2358
|
|
|
2359
|
|
|
2360 /* Look at all windows, performing an operation specified by TYPE
|
|
|
2361 with argument OBJ.
|
|
|
2362
|
|
|
2363 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected
|
|
|
2364 frame. If FRAMES is a frame, just look at windows on that frame.
|
|
|
2365 If MINI is non-zero, perform the operation on minibuffer windows too.
|
|
|
2366 */
|
|
|
2367
|
|
|
2368 enum window_loop
|
|
|
2369 {
|
|
|
2370 WINDOW_LOOP_UNUSED,
|
|
|
2371 GET_BUFFER_WINDOW, /* Arg is buffer */
|
|
|
2372 GET_LRU_WINDOW, /* Arg is t for full-width windows only */
|
|
|
2373 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */
|
|
|
2374 DELETE_BUFFER_WINDOWS, /* Arg is buffer */
|
|
|
2375 GET_LARGEST_WINDOW,
|
|
|
2376 UNSHOW_BUFFER, /* Arg is buffer */
|
|
|
2377 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */
|
|
|
2378 GET_BUFFER_MRU_WINDOW /* Arg is buffer */
|
|
|
2379 };
|
|
|
2380
|
|
|
2381 static Lisp_Object
|
|
|
2382 window_loop (enum window_loop type,
|
|
185
|
2383 Lisp_Object obj,
|
|
0
|
2384 int mini,
|
|
|
2385 Lisp_Object frames,
|
|
|
2386 int dedicated_too,
|
|
|
2387 Lisp_Object console)
|
|
|
2388 {
|
|
|
2389 /* This function can GC if type == DELETE_BUFFER_WINDOWS or UNSHOW_BUFFER */
|
|
|
2390 Lisp_Object w;
|
|
|
2391 Lisp_Object best_window = Qnil;
|
|
|
2392 Lisp_Object next_window;
|
|
|
2393 Lisp_Object last_window;
|
|
|
2394 struct frame *frame;
|
|
|
2395 Lisp_Object frame_arg = Qt;
|
|
|
2396 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */
|
|
|
2397 /* #### I think the change of "precomputing" last_window and next_window
|
|
|
2398 * #### catch the lossage this is meant(?) to punt on...
|
|
|
2399 */
|
|
185
|
2400 int lose_lose = 0;
|
|
0
|
2401 Lisp_Object devcons, concons;
|
|
|
2402
|
|
|
2403 /* FRAME_ARG is Qlambda to stick to one frame,
|
|
|
2404 Qvisible to consider all visible frames,
|
|
|
2405 or Qt otherwise. */
|
|
|
2406
|
|
|
2407 /* If we're only looping through windows on a particular frame,
|
|
|
2408 FRAME points to that frame. If we're looping through windows
|
|
|
2409 on all frames, FRAME is 0. */
|
|
|
2410
|
|
|
2411 if (FRAMEP (frames))
|
|
|
2412 frame = XFRAME (frames);
|
|
|
2413 else if (NILP (frames))
|
|
|
2414 frame = selected_frame ();
|
|
|
2415 else
|
|
|
2416 frame = 0;
|
|
|
2417 if (frame)
|
|
|
2418 frame_arg = Qlambda;
|
|
|
2419 else if (ZEROP (frames))
|
|
|
2420 frame_arg = frames;
|
|
|
2421 else if (EQ (frames, Qvisible))
|
|
|
2422 frame_arg = frames;
|
|
185
|
2423
|
|
0
|
2424 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
2425 {
|
|
|
2426 Lisp_Object device = XCAR (devcons);
|
|
272
|
2427 Lisp_Object the_frame;
|
|
0
|
2428
|
|
|
2429 if (frame)
|
|
|
2430 XSETFRAME (the_frame, frame);
|
|
|
2431 else
|
|
|
2432 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device));
|
|
|
2433
|
|
|
2434 if (NILP (the_frame))
|
|
|
2435 continue;
|
|
|
2436
|
|
|
2437 if (!device_matches_console_spec (the_frame, device, console))
|
|
|
2438 continue;
|
|
|
2439
|
|
|
2440 /* Pick a window to start with. */
|
|
|
2441 if (WINDOWP (obj))
|
|
|
2442 w = obj;
|
|
|
2443 else
|
|
|
2444 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame));
|
|
|
2445
|
|
|
2446 /* Figure out the last window we're going to mess with. Since
|
|
|
2447 Fnext_window, given the same options, is guaranteed to go in a
|
|
|
2448 ring, we can just use Fprevious_window to find the last one.
|
|
|
2449
|
|
|
2450 We can't just wait until we hit the first window again,
|
|
|
2451 because it might be deleted. */
|
|
|
2452
|
|
|
2453 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, Qt);
|
|
|
2454
|
|
|
2455 best_window = Qnil;
|
|
|
2456 for (;;)
|
|
|
2457 {
|
|
|
2458 struct window *p = XWINDOW (w);
|
|
|
2459 struct frame *w_frame = XFRAME (WINDOW_FRAME (p));
|
|
|
2460
|
|
|
2461 /* Pick the next window now, since some operations will delete
|
|
|
2462 the current window. */
|
|
|
2463 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, Qt);
|
|
|
2464
|
|
|
2465 /* #### Still needed ?? */
|
|
185
|
2466 /* Given the outstanding quality of the rest of this code,
|
|
0
|
2467 I feel no shame about putting this piece of shit in. */
|
|
|
2468 if (++lose_lose >= 500)
|
|
|
2469 return Qnil;
|
|
|
2470
|
|
|
2471 /* Note that we do not pay attention here to whether
|
|
|
2472 the frame is visible, since Fnext_window skips non-visible frames
|
|
|
2473 if that is desired, under the control of frame_arg. */
|
|
|
2474 if (! MINI_WINDOW_P (p)
|
|
|
2475 || (mini && minibuf_level > 0))
|
|
|
2476 switch (type)
|
|
|
2477 {
|
|
|
2478 case GET_BUFFER_WINDOW:
|
|
|
2479 {
|
|
|
2480 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2481 return w;
|
|
|
2482 break;
|
|
|
2483 }
|
|
|
2484
|
|
|
2485 case GET_BUFFER_WINDOW_COUNT:
|
|
|
2486 {
|
|
|
2487 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2488 count++;
|
|
|
2489 break;
|
|
|
2490 }
|
|
|
2491
|
|
|
2492 case GET_LRU_WINDOW:
|
|
|
2493 {
|
|
|
2494 /* t as arg means consider only full-width windows */
|
|
|
2495 if (!NILP (obj)
|
|
|
2496 && !window_full_width_p (p))
|
|
|
2497 break;
|
|
|
2498 /* Ignore dedicated windows and minibuffers. */
|
|
|
2499 if (MINI_WINDOW_P (p)
|
|
|
2500 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2501 break;
|
|
|
2502 if (NILP (best_window)
|
|
|
2503 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2504 > XINT (p->use_time)))
|
|
|
2505 best_window = w;
|
|
|
2506 break;
|
|
|
2507 }
|
|
|
2508
|
|
|
2509 case GET_BUFFER_MRU_WINDOW:
|
|
|
2510 {
|
|
|
2511 /* #### what about the first check in GET_LRU_WINDOW? */
|
|
|
2512 /* Ignore dedicated windows and minibuffers. */
|
|
|
2513 if (MINI_WINDOW_P (p)
|
|
|
2514 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2515 break;
|
|
|
2516
|
|
|
2517 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2518 {
|
|
|
2519 if (NILP (best_window)
|
|
|
2520 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2521 < XINT (p->use_time)))
|
|
|
2522 best_window = w;
|
|
|
2523 }
|
|
|
2524 break;
|
|
|
2525 }
|
|
|
2526
|
|
|
2527 case DELETE_OTHER_WINDOWS:
|
|
|
2528 {
|
|
|
2529 /* Don't delete the last window on a frame; this can
|
|
|
2530 happen when the minibuffer is selected, and would
|
|
|
2531 cause the frame to be deleted. */
|
|
|
2532 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w)))
|
|
|
2533 Fdelete_window (w, Qnil);
|
|
|
2534 break;
|
|
|
2535 }
|
|
|
2536
|
|
|
2537 case DELETE_BUFFER_WINDOWS:
|
|
|
2538 {
|
|
|
2539 if (EQ (p->buffer, obj))
|
|
|
2540 {
|
|
|
2541 struct frame *f = XFRAME (WINDOW_FRAME (p));
|
|
|
2542
|
|
|
2543 /* If this window is dedicated, and in a frame
|
|
|
2544 of its own, kill the frame. */
|
|
|
2545 if (EQ (w, FRAME_ROOT_WINDOW (f))
|
|
|
2546 && !NILP (p->dedicated)
|
|
|
2547 && other_visible_frames (f))
|
|
|
2548 {
|
|
|
2549 /* Skip the other windows on this frame.
|
|
|
2550 There might be one, the minibuffer! */
|
|
|
2551 if (! EQ (w, last_window))
|
|
|
2552 while (f == XFRAME (WINDOW_FRAME
|
|
|
2553 (XWINDOW (next_window))))
|
|
|
2554 {
|
|
|
2555 /* As we go, check for the end of the
|
|
|
2556 loop. We mustn't start going
|
|
|
2557 around a second time. */
|
|
|
2558 if (EQ (next_window, last_window))
|
|
|
2559 {
|
|
|
2560 last_window = w;
|
|
|
2561 break;
|
|
|
2562 }
|
|
|
2563 next_window = Fnext_window (next_window,
|
|
|
2564 mini ? Qt : Qnil,
|
|
|
2565 frame_arg, Qt);
|
|
|
2566 }
|
|
|
2567 /* Now we can safely delete the frame. */
|
|
|
2568 Fdelete_frame (WINDOW_FRAME (p), Qnil);
|
|
|
2569 }
|
|
|
2570 else
|
|
|
2571 /* If we're deleting the buffer displayed in
|
|
|
2572 the only window on the frame, find a new
|
|
|
2573 buffer to display there. */
|
|
|
2574 if (NILP (p->parent))
|
|
|
2575 {
|
|
|
2576 Lisp_Object new_buffer;
|
|
|
2577 new_buffer = Fother_buffer (obj, Qnil, Qnil);
|
|
|
2578 if (NILP (new_buffer))
|
|
|
2579 new_buffer = Fget_buffer_create (QSscratch);
|
|
|
2580 Fset_window_buffer (w, new_buffer);
|
|
|
2581 if (EQ (w, Fselected_window (Qnil)))
|
|
|
2582 Fset_buffer (p->buffer);
|
|
|
2583 }
|
|
|
2584 else
|
|
|
2585 Fdelete_window (w, Qnil);
|
|
|
2586 }
|
|
|
2587 break;
|
|
|
2588 }
|
|
|
2589
|
|
|
2590 case GET_LARGEST_WINDOW:
|
|
|
2591 {
|
|
|
2592 /* Ignore dedicated windows and minibuffers. */
|
|
|
2593 if (MINI_WINDOW_P (p)
|
|
|
2594 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2595 break;
|
|
|
2596 {
|
|
|
2597 /* write the check as follows to avoid tripping
|
|
|
2598 error_check_window() --ben */
|
|
|
2599 struct window *b = NILP (best_window) ? 0 :
|
|
|
2600 XWINDOW (best_window);
|
|
|
2601 if (NILP (best_window)
|
|
|
2602 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p))
|
|
|
2603 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b))))
|
|
|
2604 best_window = w;
|
|
|
2605 }
|
|
|
2606 break;
|
|
|
2607 }
|
|
|
2608
|
|
|
2609 case UNSHOW_BUFFER:
|
|
|
2610 {
|
|
|
2611 if (EQ (p->buffer, obj))
|
|
|
2612 {
|
|
|
2613 /* Find another buffer to show in this window. */
|
|
|
2614 Lisp_Object another_buffer =
|
|
|
2615 Fother_buffer (obj, Qnil, Qnil);
|
|
|
2616 if (NILP (another_buffer))
|
|
|
2617 another_buffer
|
|
|
2618 = Fget_buffer_create (QSscratch);
|
|
|
2619 /* If this window is dedicated, and in a frame
|
|
|
2620 of its own, kill the frame. */
|
|
|
2621 if (EQ (w, FRAME_ROOT_WINDOW (w_frame))
|
|
|
2622 && !NILP (p->dedicated)
|
|
|
2623 && other_visible_frames (w_frame))
|
|
|
2624 {
|
|
|
2625 /* Skip the other windows on this frame.
|
|
|
2626 There might be one, the minibuffer! */
|
|
|
2627 if (! EQ (w, last_window))
|
|
|
2628 while (w_frame == XFRAME (WINDOW_FRAME
|
|
|
2629 (XWINDOW (next_window))))
|
|
|
2630 {
|
|
|
2631 /* As we go, check for the end of the
|
|
|
2632 loop. We mustn't start going
|
|
|
2633 around a second time. */
|
|
|
2634 if (EQ (next_window, last_window))
|
|
|
2635 {
|
|
|
2636 last_window = w;
|
|
|
2637 break;
|
|
|
2638 }
|
|
|
2639 next_window = Fnext_window (next_window,
|
|
|
2640 mini ? Qt : Qnil,
|
|
|
2641 frame_arg, Qt);
|
|
|
2642 }
|
|
|
2643 /* Now we can safely delete the frame. */
|
|
|
2644 delete_frame_internal (XFRAME (WINDOW_FRAME (p)),
|
|
|
2645 0, 0, 0);
|
|
|
2646 }
|
|
|
2647 else
|
|
|
2648 {
|
|
|
2649 /* Otherwise show a different buffer in the
|
|
|
2650 window. */
|
|
|
2651 p->dedicated = Qnil;
|
|
|
2652 Fset_window_buffer (w, another_buffer);
|
|
|
2653 if (EQ (w, Fselected_window (Qnil)))
|
|
|
2654 Fset_buffer (p->buffer);
|
|
|
2655 }
|
|
|
2656 }
|
|
|
2657 break;
|
|
|
2658 }
|
|
|
2659
|
|
185
|
2660 default:
|
|
0
|
2661 abort ();
|
|
|
2662 }
|
|
|
2663
|
|
|
2664 if (EQ (w, last_window))
|
|
|
2665 break;
|
|
|
2666
|
|
|
2667 w = next_window;
|
|
|
2668 }
|
|
|
2669 }
|
|
|
2670
|
|
173
|
2671 return type == GET_BUFFER_WINDOW_COUNT ? make_int (count) : best_window;
|
|
0
|
2672 }
|
|
|
2673
|
|
|
2674 #if 0 /* not currently used */
|
|
|
2675
|
|
|
2676 int
|
|
|
2677 buffer_window_count (struct buffer *b, struct frame *f)
|
|
|
2678 {
|
|
|
2679 Lisp_Object buffer, frame;
|
|
|
2680
|
|
|
2681 XSETFRAME (frame, f);
|
|
|
2682 XSETBUFFER (buffer, b);
|
|
|
2683
|
|
|
2684 return XINT (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1,
|
|
|
2685 Qnil));
|
|
|
2686 }
|
|
|
2687
|
|
|
2688 int
|
|
|
2689 buffer_window_mru (struct window *w)
|
|
|
2690 {
|
|
185
|
2691 Lisp_Object window =
|
|
0
|
2692 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil);
|
|
|
2693
|
|
|
2694 if (NILP (window))
|
|
|
2695 return 0;
|
|
|
2696 else if (XWINDOW (window) == w)
|
|
|
2697 return 1;
|
|
|
2698 else
|
|
|
2699 return 0;
|
|
|
2700 }
|
|
|
2701
|
|
|
2702 #endif
|
|
|
2703
|
|
|
2704
|
|
20
|
2705 DEFUN ("get-lru-window", Fget_lru_window, 0, 2, 0, /*
|
|
0
|
2706 Return the window least recently selected or used for display.
|
|
|
2707 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2708 If FRAME is 0, search all visible and iconified frames.
|
|
|
2709 If FRAME is t, search all frames.
|
|
|
2710 If FRAME is nil, search only the selected frame.
|
|
|
2711 If FRAME is a frame, search only that frame.
|
|
|
2712
|
|
|
2713 Optional second argument CONSOLE controls which consoles or devices the
|
|
|
2714 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2715 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2716 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2717 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2718 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2719 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2720 Otherwise, all windows are considered.
|
|
20
|
2721 */
|
|
|
2722 (frame, console))
|
|
0
|
2723 {
|
|
|
2724 Lisp_Object w;
|
|
|
2725 /* First try for a non-dedicated window that is full-width */
|
|
|
2726 w = window_loop (GET_LRU_WINDOW, Qt, 0, frame, 0, console);
|
|
|
2727 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2728 return w;
|
|
|
2729
|
|
|
2730 /* Then try for any non-dedicated window */
|
|
|
2731 w = window_loop (GET_LRU_WINDOW, Qnil, 0, frame, 0, console);
|
|
|
2732 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2733 return w;
|
|
|
2734
|
|
|
2735 #if 0
|
|
|
2736 /* FSFmacs never returns a dedicated window here. If we do,
|
|
|
2737 it makes `display-buffer' not work right. #### All of this
|
|
|
2738 shit is so disgusting and awful that it needs to be rethought
|
|
|
2739 from scratch. */
|
|
|
2740 /* then try for a dedicated window that is full-width */
|
|
|
2741 w = window_loop (GET_LRU_WINDOW, Qt, 0, frame, 1, console);
|
|
|
2742 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2743 return w;
|
|
|
2744
|
|
|
2745 /* If none of them, then all windows, dedicated or not. */
|
|
|
2746 w = window_loop (GET_LRU_WINDOW, Qnil, 0, frame, 1, console);
|
|
|
2747
|
|
|
2748 /* At this point we damn well better have found something. */
|
|
|
2749 if (NILP (w)) abort ();
|
|
|
2750 #endif
|
|
|
2751
|
|
173
|
2752 return w;
|
|
0
|
2753 }
|
|
|
2754
|
|
20
|
2755 DEFUN ("get-largest-window", Fget_largest_window, 0, 2, 0, /*
|
|
0
|
2756 Return the window largest in area.
|
|
|
2757 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2758 If FRAME is 0, search all visible and iconified frames.
|
|
|
2759 If FRAME is t, search all frames.
|
|
|
2760 If FRAME is nil, search only the selected frame.
|
|
|
2761 If FRAME is a frame, search only that frame.
|
|
|
2762
|
|
|
2763 Optional second argument CONSOLE controls which consoles or devices the
|
|
|
2764 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2765 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2766 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2767 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2768 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2769 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2770 Otherwise, all windows are considered.
|
|
20
|
2771 */
|
|
|
2772 (frame, console))
|
|
0
|
2773 {
|
|
|
2774 /* Don't search dedicated windows because FSFmacs doesn't.
|
|
|
2775 This stuff is all black magic so don't try to apply common
|
|
|
2776 sense to it. */
|
|
|
2777 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, frame, 0, console);
|
|
|
2778 }
|
|
|
2779
|
|
20
|
2780 DEFUN ("get-buffer-window", Fget_buffer_window, 1, 3, 0, /*
|
|
0
|
2781 Return a window currently displaying BUFFER, or nil if none.
|
|
|
2782 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2783 If optional argument FRAME is 0, search all visible and iconified frames.
|
|
|
2784 If FRAME is t, search all frames.
|
|
|
2785 If FRAME is nil, search only the selected frame.
|
|
|
2786 If FRAME is a frame, search only that frame.
|
|
|
2787
|
|
|
2788 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2789 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2790 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2791 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2792 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2793 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2794 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2795 Otherwise, all windows are considered.
|
|
20
|
2796 */
|
|
|
2797 (buffer, frame, console))
|
|
0
|
2798 {
|
|
|
2799 buffer = Fget_buffer (buffer);
|
|
|
2800 if (BUFFERP (buffer))
|
|
|
2801 /* Search dedicated windows too. (Doesn't matter here anyway.) */
|
|
|
2802 return window_loop (GET_BUFFER_WINDOW, buffer, 1, frame, 1, console);
|
|
|
2803 else
|
|
|
2804 return Qnil;
|
|
|
2805 }
|
|
|
2806
|
|
|
2807 /* These functions used to be `buffer-left-margin-pixel-width', etc.
|
|
|
2808 but there is no sensible way to implement those functions, since
|
|
|
2809 you can't in general derive a window from a buffer. */
|
|
|
2810
|
|
280
|
2811 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width,
|
|
|
2812 0, 1, 0, /*
|
|
0
|
2813 Return the width in pixels of the left outside margin of window WINDOW.
|
|
|
2814 If WINDOW is nil, the selected window is assumed.
|
|
20
|
2815 */
|
|
|
2816 (window))
|
|
0
|
2817 {
|
|
149
|
2818 return make_int (window_left_margin_width (decode_window (window)));
|
|
0
|
2819 }
|
|
|
2820
|
|
280
|
2821 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width,
|
|
|
2822 0, 1, 0, /*
|
|
0
|
2823 Return the width in pixels of the right outside margin of window WINDOW.
|
|
|
2824 If WINDOW is nil, the selected window is assumed.
|
|
20
|
2825 */
|
|
|
2826 (window))
|
|
0
|
2827 {
|
|
149
|
2828 return make_int (window_right_margin_width (decode_window (window)));
|
|
0
|
2829 }
|
|
|
2830
|
|
20
|
2831 DEFUN ("delete-other-windows", Fdelete_other_windows, 0, 1, "", /*
|
|
0
|
2832 Make WINDOW (or the selected window) fill its frame.
|
|
|
2833 Only the frame WINDOW is on is affected.
|
|
|
2834 This function tries to reduce display jumps
|
|
|
2835 by keeping the text previously visible in WINDOW
|
|
|
2836 in the same place on the frame. Doing this depends on
|
|
|
2837 the value of (window-start WINDOW), so if calling this function
|
|
|
2838 in a program gives strange scrolling, make sure the window-start
|
|
|
2839 value is reasonable when this function is called.
|
|
20
|
2840 */
|
|
|
2841 (window))
|
|
0
|
2842 {
|
|
|
2843 struct window *w = decode_window (window);
|
|
|
2844 struct buffer *b = XBUFFER (w->buffer);
|
|
|
2845 Bufpos start_pos;
|
|
|
2846 int old_top = WINDOW_TOP (w);
|
|
|
2847
|
|
|
2848 XSETWINDOW (window, w);
|
|
|
2849
|
|
|
2850 if (MINI_WINDOW_P (w) && old_top > 0)
|
|
|
2851 error ("Can't expand minibuffer to full frame");
|
|
|
2852
|
|
|
2853 /* Ignore dedicated windows. */
|
|
|
2854 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil);
|
|
|
2855
|
|
|
2856 start_pos = marker_position (w->start[CURRENT_DISP]);
|
|
|
2857
|
|
|
2858 /* Try to minimize scrolling, by setting the window start to the
|
|
|
2859 point which will cause the text at the old window start to be at
|
|
|
2860 the same place on the frame. But don't try to do this if the
|
|
|
2861 window start is outside the visible portion (as might happen when
|
|
|
2862 the display is not current, due to typeahead). */
|
|
|
2863 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b)
|
|
|
2864 && !MINI_WINDOW_P (w))
|
|
|
2865 {
|
|
|
2866 Bufpos new_start = start_with_line_at_pixpos (w, start_pos, old_top);
|
|
|
2867
|
|
|
2868 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b))
|
|
|
2869 {
|
|
|
2870 Fset_marker (w->start[CURRENT_DISP], make_int (new_start),
|
|
|
2871 w->buffer);
|
|
|
2872 w->start_at_line_beg = beginning_of_line_p (b, new_start);
|
|
|
2873 }
|
|
|
2874 /* We need to do this, so that the window-scroll-functions
|
|
|
2875 get called. */
|
|
|
2876 w->force_start = 1;
|
|
|
2877 }
|
|
|
2878
|
|
|
2879 return Qnil;
|
|
|
2880 }
|
|
|
2881
|
|
20
|
2882 DEFUN ("delete-windows-on", Fdelete_windows_on, 1, 3,
|
|
|
2883 "bDelete windows on (buffer): ", /*
|
|
0
|
2884 Delete all windows showing BUFFER.
|
|
|
2885 Optional second argument FRAME controls which frames are affected.
|
|
|
2886 If nil or omitted, delete all windows showing BUFFER in any frame.
|
|
|
2887 If t, delete only windows showing BUFFER in the selected frame.
|
|
|
2888 If `visible', delete all windows showing BUFFER in any visible frame.
|
|
|
2889 If a frame, delete only windows showing BUFFER in that frame.
|
|
|
2890
|
|
|
2891 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2892 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2893 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2894 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2895 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2896 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2897 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2898 Otherwise, all windows are considered.
|
|
20
|
2899 */
|
|
|
2900 (buffer, frame, console))
|
|
0
|
2901 {
|
|
|
2902 /* This function can GC */
|
|
|
2903 /* FRAME uses t and nil to mean the opposite of what window_loop
|
|
|
2904 expects. */
|
|
|
2905 if (!FRAMEP (frame))
|
|
|
2906 frame = NILP (frame) ? Qt : Qnil;
|
|
|
2907
|
|
|
2908 if (!NILP (buffer))
|
|
|
2909 {
|
|
|
2910 buffer = Fget_buffer (buffer);
|
|
|
2911 CHECK_BUFFER (buffer);
|
|
|
2912 /* Ignore dedicated windows. */
|
|
|
2913 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, frame, 0, console);
|
|
|
2914 }
|
|
|
2915 return Qnil;
|
|
|
2916 }
|
|
|
2917
|
|
20
|
2918 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, 1, 1,
|
|
|
2919 "bReplace buffer in windows: ", /*
|
|
0
|
2920 Replace BUFFER with some other buffer in all windows showing it.
|
|
20
|
2921 */
|
|
|
2922 (buffer))
|
|
0
|
2923 {
|
|
|
2924 /* This function can GC */
|
|
|
2925 if (!NILP (buffer))
|
|
|
2926 {
|
|
|
2927 buffer = Fget_buffer (buffer);
|
|
|
2928 CHECK_BUFFER (buffer);
|
|
|
2929 /* Ignore dedicated windows. */
|
|
|
2930 window_loop (UNSHOW_BUFFER, buffer, 0, Qt, 0, Qnil);
|
|
|
2931 }
|
|
|
2932 return Qnil;
|
|
|
2933 }
|
|
|
2934
|
|
|
2935 /* The smallest acceptable dimensions for a window. Anything smaller
|
|
|
2936 might crash Emacs. */
|
|
|
2937 #define MIN_SAFE_WINDOW_WIDTH (2)
|
|
|
2938 #define MIN_SAFE_WINDOW_HEIGHT (2)
|
|
|
2939
|
|
|
2940 /* Make sure that window_min_height and window_min_width are
|
|
|
2941 not too small; if they are, set them to safe minima. */
|
|
|
2942
|
|
|
2943 static void
|
|
|
2944 check_min_window_sizes (void)
|
|
|
2945 {
|
|
|
2946 /* Smaller values might permit a crash. */
|
|
|
2947 if (window_min_width < MIN_SAFE_WINDOW_WIDTH)
|
|
|
2948 window_min_width = MIN_SAFE_WINDOW_WIDTH;
|
|
|
2949 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT)
|
|
|
2950 window_min_height = MIN_SAFE_WINDOW_HEIGHT;
|
|
|
2951 }
|
|
|
2952
|
|
|
2953 /* If *ROWS or *COLS are too small a size for FRAME, set them to the
|
|
|
2954 minimum allowable size. */
|
|
|
2955 void
|
|
|
2956 check_frame_size (struct frame *frame, int *rows, int *cols)
|
|
|
2957 {
|
|
|
2958 /* For height, we have to see whether the frame has a minibuffer, and
|
|
|
2959 whether it wants a modeline. */
|
|
|
2960 int min_height =
|
|
|
2961 (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1
|
|
|
2962 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT
|
|
|
2963 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1);
|
|
|
2964
|
|
|
2965 if (*rows < min_height)
|
|
|
2966 *rows = min_height;
|
|
|
2967 if (*cols < MIN_SAFE_WINDOW_WIDTH)
|
|
|
2968 *cols = MIN_SAFE_WINDOW_WIDTH;
|
|
|
2969 }
|
|
|
2970
|
|
|
2971 /* Normally the window is deleted if it gets too small.
|
|
|
2972 nodelete nonzero means do not do this.
|
|
|
2973 (The caller should check later and do so if appropriate) */
|
|
|
2974 static void
|
|
|
2975 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete,
|
|
|
2976 int set_height)
|
|
|
2977 {
|
|
|
2978 struct window *w = XWINDOW (window);
|
|
|
2979 struct frame *f = XFRAME (w->frame);
|
|
|
2980 struct window *c;
|
|
|
2981 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w));
|
|
|
2982 Lisp_Object child, minor_kid, major_kid;
|
|
|
2983 int minsize;
|
|
|
2984 int line_size;
|
|
|
2985 int defheight, defwidth;
|
|
|
2986
|
|
|
2987 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
2988 functions should be called. */
|
|
|
2989 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
2990 line_size = (set_height ? defheight : defwidth);
|
|
|
2991
|
|
272
|
2992 check_min_window_sizes ();
|
|
|
2993
|
|
0
|
2994 minsize = (set_height ? window_min_height : window_min_width);
|
|
|
2995 minsize *= line_size;
|
|
|
2996
|
|
|
2997 if (!nodelete
|
|
|
2998 && !TOP_LEVEL_WINDOW_P (w)
|
|
|
2999 && new_pixsize < minsize)
|
|
|
3000 {
|
|
|
3001 Fdelete_window (window, Qnil);
|
|
|
3002 return;
|
|
|
3003 }
|
|
|
3004
|
|
|
3005 SET_LAST_MODIFIED (w, 0);
|
|
|
3006 SET_LAST_FACECHANGE (w);
|
|
|
3007 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */
|
|
|
3008 if (set_height)
|
|
|
3009 {
|
|
|
3010 WINDOW_HEIGHT (w) = new_pixsize;
|
|
|
3011 major_kid = w->vchild;
|
|
|
3012 minor_kid = w->hchild;
|
|
|
3013 }
|
|
|
3014 else
|
|
|
3015 {
|
|
|
3016 WINDOW_WIDTH (w) = new_pixsize;
|
|
|
3017 major_kid = w->hchild;
|
|
|
3018 minor_kid = w->vchild;
|
|
|
3019 }
|
|
|
3020
|
|
|
3021 if (!NILP (minor_kid))
|
|
|
3022 {
|
|
|
3023 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3024 {
|
|
|
3025 if (set_height)
|
|
|
3026 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w);
|
|
|
3027 else
|
|
|
3028 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w);
|
|
|
3029
|
|
|
3030 set_window_pixsize (child, new_pixsize, nodelete, set_height);
|
|
|
3031 }
|
|
|
3032 }
|
|
|
3033 else if (!NILP (major_kid))
|
|
|
3034 {
|
|
|
3035 int last_pos, last_old_pos, pos, old_pos, first;
|
|
215
|
3036 int pixel_adj_left = new_pixsize - old_pixsize;
|
|
0
|
3037 int div_val = old_pixsize << 1;
|
|
|
3038
|
|
209
|
3039 /*
|
|
|
3040 * Previously we bailed out here if there was no size change.
|
|
215
|
3041 * (pixel_adj_left == 0) But this broke toolbar updates. If a
|
|
|
3042 * toolbar appears or disappears, windows may not change size,
|
|
|
3043 * but their top and left coordinates need to be updated.
|
|
209
|
3044 *
|
|
215
|
3045 * So we don't bail until after the loop below.
|
|
209
|
3046 */
|
|
0
|
3047
|
|
|
3048 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w));
|
|
|
3049 last_old_pos = 0;
|
|
|
3050
|
|
|
3051 for (child = major_kid; !NILP (child); child = c->next)
|
|
|
3052 {
|
|
|
3053 c = XWINDOW (child);
|
|
|
3054
|
|
|
3055 if (set_height)
|
|
|
3056 {
|
|
|
3057 old_pos = last_old_pos + WINDOW_HEIGHT (c);
|
|
|
3058 WINDOW_TOP (c) = last_pos;
|
|
|
3059 }
|
|
|
3060 else
|
|
|
3061 {
|
|
|
3062 old_pos = last_old_pos + WINDOW_WIDTH (c);
|
|
|
3063 WINDOW_LEFT (c) = last_pos;
|
|
|
3064 }
|
|
|
3065
|
|
|
3066 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val;
|
|
2
|
3067 /* All but the last window should have a height which is
|
|
0
|
3068 a multiple of the default line height. */
|
|
|
3069 if (!NILP (c->next))
|
|
|
3070 pos = (pos / line_size) * line_size;
|
|
|
3071
|
|
|
3072 /* Avoid confusion: don't delete child if it becomes too small */
|
|
|
3073 set_window_pixsize (child, pos + first - last_pos, 1, set_height);
|
|
|
3074
|
|
|
3075 last_pos = pos + first;
|
|
|
3076 last_old_pos = old_pos;
|
|
|
3077 }
|
|
|
3078
|
|
215
|
3079 /* Sometimes we may get called with our old size. In that case
|
|
|
3080 we don't need to do anything else. */
|
|
|
3081 if (!pixel_adj_left)
|
|
|
3082 return;
|
|
|
3083
|
|
0
|
3084 /* Now delete any children that became too small. */
|
|
|
3085 if (!nodelete)
|
|
|
3086 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3087 {
|
|
|
3088 if (set_height)
|
|
|
3089 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0);
|
|
|
3090 else
|
|
|
3091 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0);
|
|
|
3092 }
|
|
|
3093 }
|
|
|
3094 }
|
|
|
3095
|
|
|
3096 /* Set the height of WINDOW and all its inferiors. */
|
|
|
3097 void
|
|
|
3098 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete)
|
|
|
3099 {
|
|
|
3100 set_window_pixsize (window, new_pixheight, nodelete, 1);
|
|
|
3101 }
|
|
|
3102
|
|
|
3103 /* Recursively set width of WINDOW and its inferiors. */
|
|
|
3104 void
|
|
|
3105 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete)
|
|
|
3106 {
|
|
|
3107 set_window_pixsize (window, new_pixwidth, nodelete, 0);
|
|
|
3108 }
|
|
|
3109
|
|
|
3110
|
|
|
3111 static int window_select_count;
|
|
|
3112
|
|
20
|
3113 DEFUN ("set-window-buffer", Fset_window_buffer, 2, 2, 0, /*
|
|
0
|
3114 Make WINDOW display BUFFER as its contents.
|
|
|
3115 BUFFER can be a buffer or buffer name.
|
|
20
|
3116 */
|
|
|
3117 (window, buffer))
|
|
0
|
3118 {
|
|
|
3119 Lisp_Object tem;
|
|
|
3120 struct window *w = decode_window (window);
|
|
|
3121
|
|
|
3122 buffer = Fget_buffer (buffer);
|
|
|
3123 CHECK_BUFFER (buffer);
|
|
|
3124
|
|
|
3125 if (!BUFFER_LIVE_P (XBUFFER (buffer)))
|
|
|
3126 error ("Attempt to display deleted buffer");
|
|
|
3127
|
|
|
3128 tem = w->buffer;
|
|
|
3129 if (NILP (tem))
|
|
|
3130 error ("Window is deleted");
|
|
|
3131
|
|
|
3132 /* While this seems like a logical thing to do, it causes problems
|
|
|
3133 because of saved window configurations. It is possible for a
|
|
|
3134 buffer to get restored into a window in which it is already being
|
|
|
3135 displayed, but start and point are actually at completely
|
|
|
3136 different locations. So we let this function complete fully and
|
|
|
3137 it will then make sure redisplay correctly updates things.
|
|
|
3138
|
|
|
3139 #### This is a kludge. The correct approach is not to do this
|
|
|
3140 but to fix set-window-configuration. */
|
|
|
3141 #if 0
|
|
|
3142 else if (EQ (tem, buffer))
|
|
149
|
3143 return Qnil;
|
|
0
|
3144 #endif
|
|
|
3145 else if (! EQ (tem, Qt)) /* w->buffer is t when the window
|
|
|
3146 is first being set up. */
|
|
|
3147 {
|
|
|
3148 if (!NILP (w->dedicated) && !EQ (tem, buffer))
|
|
|
3149 error ("Window is dedicated to buffer %s",
|
|
16
|
3150 XSTRING_DATA (XBUFFER (tem)->name));
|
|
0
|
3151
|
|
|
3152 unshow_buffer (w);
|
|
|
3153 }
|
|
|
3154
|
|
|
3155 w->buffer = buffer;
|
|
|
3156 w->window_end_pos[CURRENT_DISP] = 0;
|
|
259
|
3157 w->hscroll = 0;
|
|
|
3158 w->modeline_hscroll = 0;
|
|
0
|
3159 Fset_marker (w->pointm[CURRENT_DISP],
|
|
|
3160 make_int (BUF_PT (XBUFFER (buffer))),
|
|
|
3161 buffer);
|
|
|
3162 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
3163 make_int (XBUFFER (buffer)->last_window_start),
|
|
|
3164 buffer);
|
|
|
3165 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer);
|
|
|
3166 w->start_at_line_beg = 0;
|
|
|
3167 w->force_start = 0; /* Lucid fix */
|
|
|
3168 SET_LAST_MODIFIED (w, 1);
|
|
|
3169 SET_LAST_FACECHANGE (w);
|
|
|
3170 MARK_WINDOWS_CHANGED (w);
|
|
|
3171 recompute_all_cached_specifiers_in_window (w);
|
|
|
3172 if (EQ (window, Fselected_window (Qnil)))
|
|
|
3173 {
|
|
|
3174 Fset_buffer (buffer);
|
|
|
3175 }
|
|
|
3176 return Qnil;
|
|
|
3177 }
|
|
|
3178
|
|
282
|
3179 DEFUN ("select-window", Fselect_window, 1, 2, 0, /*
|
|
0
|
3180 Select WINDOW. Most editing will apply to WINDOW's buffer.
|
|
|
3181 The main editor command loop selects the buffer of the selected window
|
|
|
3182 before each command.
|
|
282
|
3183
|
|
|
3184 With non-nil optional argument `norecord', do not modify the
|
|
|
3185 global or per-frame buffer ordering.
|
|
20
|
3186 */
|
|
282
|
3187 (window, norecord))
|
|
0
|
3188 {
|
|
|
3189 struct window *w;
|
|
|
3190 Lisp_Object old_selected_window = Fselected_window (Qnil);
|
|
185
|
3191
|
|
0
|
3192 CHECK_LIVE_WINDOW (window);
|
|
|
3193 w = XWINDOW (window);
|
|
|
3194
|
|
|
3195 /* we have already caught dead-window errors */
|
|
|
3196 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
3197 error ("Trying to select non-leaf window");
|
|
|
3198
|
|
|
3199 w->use_time = make_int (++window_select_count);
|
|
|
3200 if (EQ (window, old_selected_window))
|
|
|
3201 return window;
|
|
|
3202
|
|
|
3203 /* deselect the old window, if it exists (it might not exist if
|
|
|
3204 the selected device has no frames, which occurs at startup) */
|
|
|
3205 if (!NILP (old_selected_window))
|
|
|
3206 {
|
|
|
3207 struct window *ow = XWINDOW (old_selected_window);
|
|
|
3208
|
|
|
3209 Fset_marker (ow->pointm[CURRENT_DISP],
|
|
|
3210 make_int (BUF_PT (XBUFFER (ow->buffer))),
|
|
|
3211 ow->buffer);
|
|
|
3212
|
|
|
3213 MARK_WINDOWS_CHANGED (ow);
|
|
|
3214 }
|
|
|
3215
|
|
|
3216 /* now select the window's frame */
|
|
|
3217 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window);
|
|
185
|
3218
|
|
0
|
3219 select_frame_1 (WINDOW_FRAME (w));
|
|
|
3220
|
|
|
3221 /* also select the window's buffer */
|
|
282
|
3222 if (NILP (norecord))
|
|
|
3223 Frecord_buffer (w->buffer);
|
|
0
|
3224 Fset_buffer (w->buffer);
|
|
|
3225
|
|
|
3226 /* Go to the point recorded in the window.
|
|
|
3227 This is important when the buffer is in more
|
|
|
3228 than one window. It also matters when
|
|
|
3229 redisplay_window has altered point after scrolling,
|
|
|
3230 because it makes the change only in the window. */
|
|
|
3231 {
|
|
|
3232 Bufpos new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
3233 if (new_point < BUF_BEGV (current_buffer))
|
|
|
3234 new_point = BUF_BEGV (current_buffer);
|
|
|
3235 else if (new_point > BUF_ZV (current_buffer))
|
|
|
3236 new_point = BUF_ZV (current_buffer);
|
|
|
3237
|
|
|
3238 BUF_SET_PT (current_buffer, new_point);
|
|
|
3239 }
|
|
|
3240
|
|
|
3241 MARK_WINDOWS_CHANGED (w);
|
|
|
3242
|
|
|
3243 return window;
|
|
|
3244 }
|
|
|
3245
|
|
|
3246 Lisp_Object
|
|
|
3247 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p,
|
|
|
3248 Lisp_Object override_frame)
|
|
|
3249 {
|
|
|
3250 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame);
|
|
|
3251 }
|
|
|
3252
|
|
|
3253 void
|
|
|
3254 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame)
|
|
|
3255 {
|
|
|
3256 /* This function can GC */
|
|
|
3257 Lisp_Object window;
|
|
|
3258 struct window *w;
|
|
|
3259 struct buffer *b = XBUFFER (buf);
|
|
|
3260
|
|
|
3261 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b);
|
|
|
3262 widen_buffer (b, 0);
|
|
|
3263 BUF_SET_PT (b, BUF_BEG (b));
|
|
|
3264
|
|
272
|
3265 if (!NILP (Vtemp_buffer_show_function))
|
|
0
|
3266 call1 (Vtemp_buffer_show_function, buf);
|
|
|
3267 else
|
|
|
3268 {
|
|
|
3269 window = display_buffer (buf, Qnil, same_frame);
|
|
|
3270
|
|
|
3271 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil)))
|
|
|
3272 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window)));
|
|
|
3273
|
|
274
|
3274 Vminibuffer_scroll_window = window;
|
|
0
|
3275 w = XWINDOW (window);
|
|
|
3276 w->hscroll = 0;
|
|
257
|
3277 w->modeline_hscroll = 0;
|
|
0
|
3278 set_marker_restricted (w->start[CURRENT_DISP], make_int (1), buf);
|
|
|
3279 set_marker_restricted (w->pointm[CURRENT_DISP], make_int (1), buf);
|
|
|
3280 set_marker_restricted (w->sb_point, make_int (1), buf);
|
|
|
3281
|
|
185
|
3282 /* Run temp-buffer-show-hook, with the chosen window selected. */
|
|
0
|
3283 if (!preparing_for_armageddon)
|
|
|
3284 {
|
|
|
3285 Lisp_Object tem;
|
|
|
3286 tem = Fboundp (Qtemp_buffer_show_hook);
|
|
|
3287 if (!NILP (tem))
|
|
|
3288 {
|
|
|
3289 tem = Fsymbol_value (Qtemp_buffer_show_hook);
|
|
|
3290 if (!NILP (tem))
|
|
|
3291 {
|
|
|
3292 int count = specpdl_depth ();
|
|
|
3293
|
|
|
3294 /* Select the window that was chosen, for running
|
|
|
3295 the hook. */
|
|
|
3296 record_unwind_protect (save_window_excursion_unwind,
|
|
|
3297 Fcurrent_window_configuration (Qnil));
|
|
|
3298
|
|
282
|
3299 Fselect_window (window, Qnil);
|
|
0
|
3300 run_hook (Qtemp_buffer_show_hook);
|
|
|
3301 unbind_to (count, Qnil);
|
|
|
3302 }
|
|
|
3303 }
|
|
|
3304 }
|
|
|
3305 }
|
|
|
3306 }
|
|
|
3307
|
|
|
3308 static void
|
|
|
3309 make_dummy_parent (Lisp_Object window)
|
|
|
3310 {
|
|
272
|
3311 Lisp_Object new;
|
|
0
|
3312 struct window *o = XWINDOW (window);
|
|
185
|
3313 struct window *p = alloc_lcrecord_type (struct window, lrecord_window);
|
|
0
|
3314
|
|
|
3315 XSETWINDOW (new, p);
|
|
|
3316 copy_lcrecord (p, o);
|
|
|
3317
|
|
|
3318 /* Don't copy the pointers to the line start cache or the face
|
|
|
3319 instances. */
|
|
185
|
3320 p->line_start_cache = Dynarr_new (line_start_cache);
|
|
|
3321 p->face_cachels = Dynarr_new (face_cachel);
|
|
|
3322 p->glyph_cachels = Dynarr_new (glyph_cachel);
|
|
0
|
3323
|
|
|
3324 /* Put new into window structure in place of window */
|
|
|
3325 replace_window (window, new);
|
|
|
3326
|
|
|
3327 o->next = Qnil;
|
|
|
3328 o->prev = Qnil;
|
|
|
3329 o->vchild = Qnil;
|
|
|
3330 o->hchild = Qnil;
|
|
|
3331 o->parent = new;
|
|
|
3332
|
|
|
3333 p->start[CURRENT_DISP] = Qnil;
|
|
|
3334 p->start[DESIRED_DISP] = Qnil;
|
|
|
3335 p->start[CMOTION_DISP] = Qnil;
|
|
|
3336 p->pointm[CURRENT_DISP] = Qnil;
|
|
|
3337 p->pointm[DESIRED_DISP] = Qnil;
|
|
|
3338 p->pointm[CMOTION_DISP] = Qnil;
|
|
|
3339 p->sb_point = Qnil;
|
|
|
3340 p->buffer = Qnil;
|
|
|
3341 }
|
|
|
3342
|
|
20
|
3343 DEFUN ("split-window", Fsplit_window, 0, 3, "", /*
|
|
0
|
3344 Split WINDOW, putting SIZE lines in the first of the pair.
|
|
|
3345 WINDOW defaults to selected one and SIZE to half its size.
|
|
|
3346 If optional third arg HOR-FLAG is non-nil, split side by side
|
|
|
3347 and put SIZE columns in the first of the pair.
|
|
20
|
3348 */
|
|
|
3349 (window, chsize, horflag))
|
|
0
|
3350 {
|
|
|
3351 Lisp_Object new;
|
|
|
3352 struct window *o, *p;
|
|
|
3353 struct frame *f;
|
|
|
3354 int size;
|
|
|
3355 int psize;
|
|
|
3356
|
|
|
3357 if (NILP (window))
|
|
|
3358 window = Fselected_window (Qnil);
|
|
|
3359 else
|
|
|
3360 CHECK_WINDOW (window);
|
|
|
3361
|
|
|
3362 o = XWINDOW (window);
|
|
|
3363 f = XFRAME (WINDOW_FRAME (o));
|
|
|
3364
|
|
|
3365 if (NILP (chsize))
|
|
|
3366 {
|
|
|
3367 if (!NILP (horflag))
|
|
|
3368 /* In the new scheme, we are symmetric with respect to separators
|
|
|
3369 so there is no need to do weird things here. */
|
|
|
3370 {
|
|
|
3371 psize = WINDOW_WIDTH (o) >> 1;
|
|
|
3372 size = window_pixel_width_to_char_width (o, psize, 0);
|
|
|
3373 }
|
|
|
3374 else
|
|
|
3375 {
|
|
|
3376 psize = WINDOW_HEIGHT (o) >> 1;
|
|
|
3377 size = window_pixel_height_to_char_height (o, psize, 1);
|
|
|
3378 }
|
|
|
3379 }
|
|
|
3380 else
|
|
|
3381 {
|
|
|
3382 CHECK_INT (chsize);
|
|
|
3383 size = XINT (chsize);
|
|
|
3384 if (!NILP (horflag))
|
|
|
3385 psize = window_char_width_to_pixel_width (o, size, 0);
|
|
|
3386 else
|
|
|
3387 psize = window_char_height_to_pixel_height (o, size, 1);
|
|
|
3388 }
|
|
|
3389
|
|
|
3390 if (MINI_WINDOW_P (o))
|
|
|
3391 error ("Attempt to split minibuffer window");
|
|
|
3392 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o))))
|
|
|
3393 error ("Attempt to split unsplittable frame");
|
|
|
3394
|
|
|
3395 check_min_window_sizes ();
|
|
|
3396
|
|
|
3397 if (NILP (horflag))
|
|
|
3398 {
|
|
|
3399 if (size < window_min_height)
|
|
|
3400 error ("Window height %d too small (after splitting)", size);
|
|
|
3401 if (size + window_min_height > window_char_height (o, 1))
|
|
185
|
3402 error ("Window height %d too small (after splitting)",
|
|
0
|
3403 window_char_height (o, 1) - size);
|
|
|
3404 if (NILP (o->parent)
|
|
|
3405 || NILP (XWINDOW (o->parent)->vchild))
|
|
|
3406 {
|
|
|
3407 make_dummy_parent (window);
|
|
|
3408 reset_face_cachels (XWINDOW (window));
|
|
|
3409 new = o->parent;
|
|
|
3410 XWINDOW (new)->vchild = window;
|
|
|
3411 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3412 }
|
|
|
3413 }
|
|
|
3414 else
|
|
|
3415 {
|
|
|
3416 if (size < window_min_width)
|
|
|
3417 error ("Window width %d too small (after splitting)", size);
|
|
|
3418 if (size + window_min_width > window_char_width (o, 0))
|
|
185
|
3419 error ("Window width %d too small (after splitting)",
|
|
0
|
3420 window_char_width (o, 0) - size);
|
|
|
3421 if (NILP (o->parent)
|
|
|
3422 || NILP (XWINDOW (o->parent)->hchild))
|
|
|
3423 {
|
|
|
3424 make_dummy_parent (window);
|
|
|
3425 reset_face_cachels (XWINDOW (window));
|
|
|
3426 new = o->parent;
|
|
|
3427 XWINDOW (new)->hchild = window;
|
|
|
3428 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3429 }
|
|
|
3430 }
|
|
|
3431
|
|
|
3432 /* Now we know that window's parent is a vertical combination
|
|
|
3433 if we are dividing vertically, or a horizontal combination
|
|
|
3434 if we are making side-by-side windows */
|
|
|
3435
|
|
|
3436 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
3437 new = allocate_window ();
|
|
|
3438 p = XWINDOW (new);
|
|
|
3439
|
|
|
3440 p->frame = o->frame;
|
|
|
3441 p->next = o->next;
|
|
|
3442 if (!NILP (p->next))
|
|
|
3443 XWINDOW (p->next)->prev = new;
|
|
|
3444 p->prev = window;
|
|
|
3445 o->next = new;
|
|
|
3446 p->parent = o->parent;
|
|
|
3447 p->buffer = Qt;
|
|
|
3448
|
|
|
3449 reset_face_cachels (p);
|
|
|
3450 reset_glyph_cachels (p);
|
|
185
|
3451
|
|
0
|
3452
|
|
|
3453 /* Apportion the available frame space among the two new windows */
|
|
|
3454
|
|
|
3455 if (!NILP (horflag))
|
|
|
3456 {
|
|
|
3457 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
3458 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
3459 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize;
|
|
|
3460 WINDOW_WIDTH (o) = psize;
|
|
|
3461 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize;
|
|
|
3462 }
|
|
|
3463 else
|
|
|
3464 {
|
|
|
3465 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
3466 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
3467 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize;
|
|
|
3468 WINDOW_HEIGHT (o) = psize;
|
|
|
3469 WINDOW_TOP (p) = WINDOW_TOP (o) + psize;
|
|
|
3470 }
|
|
|
3471
|
|
|
3472 XFRAME (p->frame)->mirror_dirty = 1;
|
|
|
3473 /* do this last (after the window is completely initialized and
|
|
|
3474 the mirror-dirty flag is set) so that specifier recomputation
|
|
|
3475 caused as a result of this will work properly and not abort. */
|
|
|
3476 Fset_window_buffer (new, o->buffer);
|
|
|
3477 return new;
|
|
|
3478 }
|
|
|
3479
|
|
|
3480
|
|
20
|
3481 DEFUN ("enlarge-window", Fenlarge_window, 1, 3, "_p", /*
|
|
0
|
3482 Make the selected window ARG lines bigger.
|
|
|
3483 From program, optional second arg non-nil means grow sideways ARG columns,
|
|
|
3484 and optional third ARG specifies the window to change instead of the
|
|
|
3485 selected window.
|
|
20
|
3486 */
|
|
|
3487 (n, side, window))
|
|
0
|
3488 {
|
|
|
3489 struct window *w = decode_window (window);
|
|
|
3490 CHECK_INT (n);
|
|
263
|
3491 change_window_height (w, XINT (n), !NILP (side), /* inpixels */ 0);
|
|
|
3492 return Qnil;
|
|
|
3493 }
|
|
|
3494
|
|
|
3495 DEFUN ("enlarge-window-pixels", Fenlarge_window_pixels, 1, 3, "_p", /*
|
|
|
3496 Make the selected window ARG pixels bigger.
|
|
|
3497 From program, optional second arg non-nil means grow sideways ARG pixels,
|
|
|
3498 and optional third ARG specifies the window to change instead of the
|
|
|
3499 selected window.
|
|
|
3500 */
|
|
|
3501 (n, side, window))
|
|
|
3502 {
|
|
|
3503 struct window *w = decode_window (window);
|
|
|
3504 CHECK_INT (n);
|
|
|
3505 change_window_height (w, XINT (n), !NILP (side), /* inpixels */ 1);
|
|
0
|
3506 return Qnil;
|
|
|
3507 }
|
|
|
3508
|
|
20
|
3509 DEFUN ("shrink-window", Fshrink_window, 1, 3, "_p", /*
|
|
0
|
3510 Make the selected window ARG lines smaller.
|
|
|
3511 From program, optional second arg non-nil means shrink sideways ARG columns,
|
|
|
3512 and optional third ARG specifies the window to change instead of the
|
|
|
3513 selected window.
|
|
20
|
3514 */
|
|
|
3515 (n, side, window))
|
|
0
|
3516 {
|
|
|
3517 CHECK_INT (n);
|
|
263
|
3518 change_window_height (decode_window (window), -XINT (n), !NILP (side),
|
|
|
3519 /* inpixels */ 0);
|
|
|
3520 return Qnil;
|
|
|
3521 }
|
|
|
3522
|
|
|
3523 DEFUN ("shrink-window-pixels", Fshrink_window_pixels, 1, 3, "_p", /*
|
|
|
3524 Make the selected window ARG pixels smaller.
|
|
|
3525 From program, optional second arg non-nil means shrink sideways ARG pixels,
|
|
|
3526 and optional third ARG specifies the window to change instead of the
|
|
|
3527 selected window.
|
|
|
3528 */
|
|
|
3529 (n, side, window))
|
|
|
3530 {
|
|
|
3531 CHECK_INT (n);
|
|
|
3532 change_window_height (decode_window (window), -XINT (n), !NILP (side),
|
|
|
3533 /* inpixels */ 1);
|
|
0
|
3534 return Qnil;
|
|
|
3535 }
|
|
|
3536
|
|
|
3537 static int
|
|
|
3538 window_pixel_height (Lisp_Object window)
|
|
|
3539 {
|
|
149
|
3540 return WINDOW_HEIGHT (XWINDOW (window));
|
|
0
|
3541 }
|
|
|
3542
|
|
|
3543 static int
|
|
|
3544 window_pixel_height_to_char_height (struct window *w, int pixel_height,
|
|
|
3545 int include_gutters_p)
|
|
|
3546 {
|
|
|
3547 int avail_height;
|
|
|
3548 int defheight, defwidth;
|
|
|
3549 int char_height;
|
|
|
3550 Lisp_Object window;
|
|
185
|
3551
|
|
0
|
3552 XSETWINDOW (window, w);
|
|
185
|
3553
|
|
0
|
3554 avail_height = (pixel_height -
|
|
|
3555 (include_gutters_p ? 0 :
|
|
|
3556 window_top_gutter_height (w) +
|
|
|
3557 window_bottom_gutter_height (w)));
|
|
185
|
3558
|
|
0
|
3559 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3560
|
|
|
3561 char_height = avail_height / defheight;
|
|
|
3562
|
|
|
3563 /* It's the calling function's responsibility to check these values
|
|
|
3564 and make sure they're not out of range.
|
|
|
3565
|
|
|
3566 #### We need to go through the calling functions and actually
|
|
|
3567 do this. */
|
|
272
|
3568 return max (0, char_height);
|
|
0
|
3569 }
|
|
|
3570
|
|
|
3571 static int
|
|
|
3572 window_char_height_to_pixel_height (struct window *w, int char_height,
|
|
|
3573 int include_gutters_p)
|
|
|
3574 {
|
|
|
3575 int avail_height;
|
|
|
3576 int defheight, defwidth;
|
|
|
3577 int pixel_height;
|
|
|
3578
|
|
|
3579 Lisp_Object window;
|
|
185
|
3580
|
|
0
|
3581 XSETWINDOW (window, w);
|
|
185
|
3582
|
|
0
|
3583 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3584
|
|
|
3585 avail_height = char_height * defheight;
|
|
|
3586 pixel_height = (avail_height +
|
|
|
3587 (include_gutters_p ? 0 :
|
|
|
3588 window_top_gutter_height (w) +
|
|
|
3589 window_bottom_gutter_height (w)));
|
|
|
3590
|
|
|
3591 /* It's the calling function's responsibility to check these values
|
|
|
3592 and make sure they're not out of range.
|
|
|
3593
|
|
|
3594 #### We need to go through the calling functions and actually
|
|
|
3595 do this. */
|
|
272
|
3596 return max (0, pixel_height);
|
|
0
|
3597 }
|
|
|
3598
|
|
|
3599 /* Return number of default lines of text can fit in the window W.
|
|
|
3600 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus
|
|
|
3601 horizontal scrollbar) in the space that is used for the calculation.
|
|
|
3602 */
|
|
|
3603 int
|
|
|
3604 window_char_height (struct window *w, int include_gutters_p)
|
|
|
3605 {
|
|
|
3606 return window_pixel_height_to_char_height (w, WINDOW_HEIGHT (w),
|
|
|
3607 include_gutters_p);
|
|
|
3608 }
|
|
|
3609
|
|
|
3610 /*
|
|
|
3611 * Return number of lines currently displayed in window w. If
|
|
|
3612 * end-of-buffer is displayed then the area below end-of-buffer is assume
|
|
|
3613 * to be blank lines of default height.
|
|
|
3614 * Does not include the modeline.
|
|
|
3615 */
|
|
|
3616 int
|
|
|
3617 window_displayed_height (struct window *w)
|
|
|
3618 {
|
|
|
3619 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3620 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
3621 int num_lines;
|
|
|
3622 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)
|
|
|
3623 ? -1
|
|
|
3624 : w->window_end_pos[CURRENT_DISP]);
|
|
|
3625
|
|
|
3626 if (!Dynarr_length (dla))
|
|
|
3627 return window_char_height (w, 0);
|
|
|
3628
|
|
|
3629 num_lines = Dynarr_length (dla);
|
|
|
3630
|
|
|
3631 /* #### Document and assert somewhere that w->window_end_pos == -1
|
|
|
3632 indicates that end-of-buffer is being displayed. */
|
|
|
3633 if (end_pos == -1)
|
|
|
3634 {
|
|
|
3635 struct display_line *dl = Dynarr_atp (dla, 0);
|
|
|
3636 int ypos1 = dl->ypos + dl->descent;
|
|
|
3637 int ypos2 = WINDOW_TEXT_BOTTOM (w);
|
|
|
3638 Lisp_Object window;
|
|
|
3639 int defheight, defwidth;
|
|
|
3640
|
|
|
3641 XSETWINDOW (window, w);
|
|
|
3642
|
|
|
3643 if (dl->modeline)
|
|
|
3644 {
|
|
|
3645 num_lines--;
|
|
|
3646
|
|
|
3647 if (Dynarr_length (dla) == 1)
|
|
|
3648 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
3649 else
|
|
|
3650 {
|
|
|
3651 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
3652 /* If this line is clipped then we know that there is no
|
|
|
3653 blank room between eob and the modeline. If we are
|
|
|
3654 scrolling on clipped lines just know off the clipped
|
|
|
3655 line and return .*/
|
|
|
3656 if (scroll_on_clipped_lines && dl->clip)
|
|
149
|
3657 return num_lines - 1;
|
|
0
|
3658 ypos1 = dl->ypos + dl->descent - dl->clip;
|
|
|
3659 }
|
|
|
3660 }
|
|
|
3661
|
|
|
3662 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3663 /* #### This probably needs to know about the clipping area once a
|
|
|
3664 final definition is decided on. */
|
|
|
3665 num_lines += ((ypos2 - ypos1) / defheight);
|
|
|
3666 }
|
|
|
3667 else
|
|
|
3668 {
|
|
|
3669 if (num_lines > 1 && Dynarr_atp (dla, 0)->modeline)
|
|
|
3670 num_lines--;
|
|
|
3671
|
|
|
3672 if (scroll_on_clipped_lines
|
|
|
3673 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip)
|
|
|
3674 num_lines--;
|
|
|
3675 }
|
|
|
3676
|
|
|
3677 return num_lines;
|
|
|
3678 }
|
|
|
3679
|
|
|
3680 static int
|
|
|
3681 window_pixel_width (Lisp_Object window)
|
|
|
3682 {
|
|
149
|
3683 return WINDOW_WIDTH (XWINDOW (window));
|
|
0
|
3684 }
|
|
|
3685
|
|
|
3686 static int
|
|
|
3687 window_pixel_width_to_char_width (struct window *w, int pixel_width,
|
|
|
3688 int include_margins_p)
|
|
|
3689 {
|
|
|
3690 int avail_width;
|
|
|
3691 int char_width;
|
|
|
3692 int defheight, defwidth;
|
|
|
3693 Lisp_Object window;
|
|
185
|
3694
|
|
0
|
3695 XSETWINDOW (window, w);
|
|
185
|
3696
|
|
0
|
3697 avail_width = (pixel_width -
|
|
|
3698 window_left_gutter_width (w, 0) -
|
|
|
3699 window_right_gutter_width (w, 0) -
|
|
|
3700 (include_margins_p ? 0 : window_left_margin_width (w)) -
|
|
|
3701 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
185
|
3702
|
|
0
|
3703 default_face_height_and_width (window, &defheight, &defwidth);
|
|
185
|
3704
|
|
0
|
3705 char_width = (avail_width / defwidth);
|
|
|
3706
|
|
|
3707 /* It's the calling function's responsibility to check these values
|
|
|
3708 and make sure they're not out of range.
|
|
|
3709
|
|
|
3710 #### We need to go through the calling functions and actually
|
|
|
3711 do this. */
|
|
272
|
3712 return max (0, char_width);
|
|
0
|
3713 }
|
|
|
3714
|
|
|
3715 static int
|
|
|
3716 window_char_width_to_pixel_width (struct window *w, int char_width,
|
|
|
3717 int include_margins_p)
|
|
|
3718 {
|
|
|
3719 int avail_width;
|
|
|
3720 int pixel_width;
|
|
|
3721 int defheight, defwidth;
|
|
|
3722 Lisp_Object window;
|
|
|
3723
|
|
|
3724 XSETWINDOW (window, w);
|
|
|
3725
|
|
|
3726 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3727
|
|
|
3728 avail_width = char_width * defwidth;
|
|
|
3729 pixel_width = (avail_width +
|
|
|
3730 window_left_gutter_width (w, 0) +
|
|
|
3731 window_right_gutter_width (w, 0) +
|
|
|
3732 (include_margins_p ? 0 : window_left_margin_width (w)) +
|
|
|
3733 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
|
3734
|
|
|
3735 /* It's the calling function's responsibility to check these values
|
|
|
3736 and make sure they're not out of range.
|
|
|
3737
|
|
|
3738 #### We need to go through the calling functions and actually
|
|
|
3739 do this. */
|
|
272
|
3740 return max (0, pixel_width);
|
|
0
|
3741 }
|
|
|
3742
|
|
|
3743 /* This returns the usable space which doesn't include space needed by
|
|
|
3744 scrollbars or divider lines. */
|
|
|
3745 int
|
|
|
3746 window_char_width (struct window *w, int include_margins_p)
|
|
|
3747 {
|
|
|
3748 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w),
|
|
|
3749 include_margins_p);
|
|
|
3750 }
|
|
|
3751
|
|
|
3752 #define MINSIZE(w) \
|
|
|
3753 (widthflag \
|
|
|
3754 ? window_min_width * defwidth \
|
|
|
3755 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)))
|
|
|
3756
|
|
|
3757 #define CURBEG(w) \
|
|
|
3758 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w))
|
|
|
3759
|
|
|
3760 #define CURSIZE(w) \
|
|
|
3761 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w))
|
|
|
3762
|
|
|
3763 #define CURCHARSIZE(w) \
|
|
|
3764 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1))
|
|
|
3765
|
|
|
3766 #define MINCHARSIZE(window) \
|
|
|
3767 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \
|
|
|
3768 ? 1 : window_min_height)
|
|
|
3769
|
|
|
3770 /* Unlike set_window_pixheight, this function
|
|
|
3771 also changes the heights of the siblings so as to
|
|
|
3772 keep everything consistent. */
|
|
|
3773
|
|
|
3774 static void
|
|
263
|
3775 change_window_height (struct window *win, int delta, int widthflag,
|
|
|
3776 int inpixels)
|
|
0
|
3777 {
|
|
|
3778 Lisp_Object parent;
|
|
272
|
3779 Lisp_Object window;
|
|
0
|
3780 struct window *w;
|
|
|
3781 struct frame *f;
|
|
|
3782 int *sizep;
|
|
|
3783 int (*sizefun) (Lisp_Object) = (widthflag
|
|
|
3784 ? window_pixel_width
|
|
|
3785 : window_pixel_height);
|
|
|
3786 void (*setsizefun) (Lisp_Object, int, int) = (widthflag
|
|
|
3787 ? set_window_pixwidth
|
|
|
3788 : set_window_pixheight);
|
|
|
3789 int dim;
|
|
|
3790 int defheight, defwidth;
|
|
|
3791
|
|
|
3792 if (delta == 0)
|
|
|
3793 return;
|
|
|
3794
|
|
|
3795 check_min_window_sizes ();
|
|
|
3796
|
|
|
3797 XSETWINDOW (window, win);
|
|
|
3798 f = XFRAME (win->frame);
|
|
|
3799 if (EQ (window, FRAME_ROOT_WINDOW (f)))
|
|
|
3800 error ("Won't change only window");
|
|
|
3801
|
|
|
3802 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
3803 functions should be called. */
|
|
|
3804 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3805
|
|
|
3806 while (1)
|
|
|
3807 {
|
|
|
3808 w = XWINDOW (window);
|
|
|
3809 parent = w->parent;
|
|
|
3810 if (NILP (parent))
|
|
|
3811 {
|
|
|
3812 if (widthflag)
|
|
|
3813 error ("No other window to side of this one");
|
|
|
3814 break;
|
|
|
3815 }
|
|
|
3816 if (widthflag
|
|
|
3817 ? !NILP (XWINDOW (parent)->hchild)
|
|
|
3818 : !NILP (XWINDOW (parent)->vchild))
|
|
|
3819 break;
|
|
|
3820 window = parent;
|
|
|
3821 }
|
|
|
3822
|
|
|
3823 sizep = &CURSIZE (w);
|
|
|
3824 dim = CURCHARSIZE (w);
|
|
|
3825
|
|
263
|
3826 if ((inpixels && (*sizep + delta) < MINSIZE (window)) ||
|
|
|
3827 (!inpixels && (dim + delta) < MINCHARSIZE (window)))
|
|
0
|
3828 {
|
|
|
3829 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
3830 return;
|
|
|
3831 else if (!NILP (parent))
|
|
|
3832 {
|
|
|
3833 Fdelete_window (window, Qnil);
|
|
|
3834 return;
|
|
|
3835 }
|
|
|
3836 }
|
|
|
3837
|
|
263
|
3838 if (!inpixels)
|
|
|
3839 delta *= (widthflag ? defwidth : defheight);
|
|
0
|
3840
|
|
|
3841 {
|
|
|
3842 int maxdelta;
|
|
|
3843
|
|
|
3844 maxdelta = ((!NILP (parent))
|
|
|
3845 ? (*sizefun) (parent) - *sizep
|
|
|
3846 : ((!NILP (w->next))
|
|
|
3847 ? (*sizefun) (w->next) - MINSIZE (w->next)
|
|
|
3848 : ((!NILP (w->prev))
|
|
|
3849 ? (*sizefun) (w->prev) - MINSIZE (w->prev)
|
|
185
|
3850 /* This is a frame with only one window,
|
|
0
|
3851 a minibuffer-only or a minibufferless frame. */
|
|
|
3852 : (delta = 0))));
|
|
|
3853
|
|
|
3854 if (delta > maxdelta)
|
|
|
3855 /* This case traps trying to make the minibuffer
|
|
|
3856 the full frame, or make the only window aside from the
|
|
|
3857 minibuffer the full frame. */
|
|
|
3858 delta = maxdelta;
|
|
|
3859
|
|
|
3860 if (delta == 0)
|
|
|
3861 return;
|
|
|
3862
|
|
|
3863 #if 0 /* FSFmacs */
|
|
|
3864 /* #### Chuck: is this correct? */
|
|
|
3865 if (*sizep + delta < MINSIZE (window))
|
|
|
3866 {
|
|
|
3867 Fdelete_window (window);
|
|
|
3868 return;
|
|
|
3869 }
|
|
|
3870 #endif
|
|
|
3871 }
|
|
|
3872
|
|
|
3873 if (!NILP (w->next) &&
|
|
|
3874 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next))
|
|
|
3875 {
|
|
|
3876 CURBEG (XWINDOW (w->next)) += delta;
|
|
|
3877 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0);
|
|
|
3878 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
3879 }
|
|
|
3880 else if (!NILP (w->prev) &&
|
|
|
3881 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev))
|
|
|
3882 {
|
|
|
3883 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0);
|
|
|
3884 CURBEG (w) -= delta;
|
|
|
3885 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
3886 }
|
|
|
3887 else
|
|
|
3888 {
|
|
|
3889 int delta1;
|
|
|
3890 int opht = (*sizefun) (parent);
|
|
|
3891
|
|
|
3892 /* If trying to grow this window to or beyond size of the parent,
|
|
|
3893 make delta1 so big that, on shrinking back down,
|
|
|
3894 all the siblings end up with less than one line and are deleted. */
|
|
|
3895 if (opht <= *sizep + delta)
|
|
|
3896 delta1 = opht * opht * 2;
|
|
|
3897 /* Otherwise, make delta1 just right so that if we add delta1
|
|
|
3898 lines to this window and to the parent, and then shrink
|
|
|
3899 the parent back to its original size, the new proportional
|
|
|
3900 size of this window will increase by delta. */
|
|
|
3901 else
|
|
|
3902 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100);
|
|
|
3903
|
|
|
3904 /* Add delta1 lines or columns to this window, and to the parent,
|
|
|
3905 keeping things consistent while not affecting siblings. */
|
|
|
3906 CURSIZE (XWINDOW (parent)) = opht + delta1;
|
|
|
3907 (*setsizefun) (window, *sizep + delta1, 0);
|
|
|
3908
|
|
|
3909 /* Squeeze out delta1 lines or columns from our parent,
|
|
|
3910 shriking this window and siblings proportionately.
|
|
|
3911 This brings parent back to correct size.
|
|
|
3912 Delta1 was calculated so this makes this window the desired size,
|
|
|
3913 taking it all out of the siblings. */
|
|
|
3914 (*setsizefun) (parent, opht, 0);
|
|
|
3915 }
|
|
|
3916
|
|
|
3917 SET_LAST_MODIFIED (w, 0);
|
|
|
3918 SET_LAST_FACECHANGE (w);
|
|
|
3919 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
3920 }
|
|
|
3921 #undef MINSIZE
|
|
|
3922 #undef CURBEG
|
|
|
3923 #undef CURSIZE
|
|
|
3924 #undef CURCHARSIZE
|
|
|
3925 #undef MINCHARSIZE
|
|
|
3926
|
|
|
3927
|
|
|
3928
|
|
|
3929 /* Scroll contents of window WINDOW up N lines. */
|
|
|
3930 void
|
|
|
3931 window_scroll (Lisp_Object window, Lisp_Object n, int direction,
|
|
|
3932 Error_behavior errb)
|
|
|
3933 {
|
|
|
3934 struct window *w = XWINDOW (window);
|
|
|
3935 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3936 int selected = EQ (window, Fselected_window (Qnil));
|
|
|
3937 int value = 0;
|
|
|
3938 Lisp_Object point, tem;
|
|
|
3939
|
|
|
3940 if (selected)
|
|
|
3941 point = make_int (BUF_PT (b));
|
|
|
3942 else
|
|
|
3943 {
|
|
|
3944 Bufpos pos = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
3945
|
|
|
3946 if (pos < BUF_BEGV (b))
|
|
|
3947 pos = BUF_BEGV (b);
|
|
|
3948 else if (pos > BUF_ZV (b))
|
|
|
3949 pos = BUF_ZV (b);
|
|
|
3950
|
|
|
3951 point = make_int (pos);
|
|
|
3952 }
|
|
|
3953
|
|
|
3954 /* Always set force_start so that redisplay_window will run
|
|
|
3955 thw window-scroll-functions. */
|
|
|
3956 w->force_start = 1;
|
|
|
3957
|
|
|
3958 /* #### When the fuck does this happen? I'm so glad that history has
|
|
|
3959 completely documented the behavior of the scrolling functions under
|
|
|
3960 all circumstances. */
|
|
|
3961 tem = Fpos_visible_in_window_p (point, window);
|
|
|
3962 if (NILP (tem))
|
|
|
3963 {
|
|
288
|
3964 Fvertical_motion (make_int (-window_char_height (w, 0) / 2),
|
|
|
3965 window, Qnil);
|
|
0
|
3966 Fset_marker (w->start[CURRENT_DISP], point, w->buffer);
|
|
|
3967 w->start_at_line_beg = beginning_of_line_p (b, XINT (point));
|
|
|
3968 MARK_WINDOWS_CHANGED (w);
|
|
|
3969 }
|
|
|
3970
|
|
|
3971 if (!NILP (n))
|
|
|
3972 {
|
|
|
3973 if (EQ (n, Qminus))
|
|
|
3974 direction *= -1;
|
|
|
3975 else
|
|
|
3976 {
|
|
|
3977 n = Fprefix_numeric_value (n);
|
|
|
3978 value = XINT (n) * direction;
|
|
|
3979
|
|
|
3980 if (!value)
|
|
|
3981 return; /* someone just made a pointless call */
|
|
|
3982 }
|
|
|
3983 }
|
|
|
3984
|
|
|
3985 /* If the user didn't specify how far to scroll then we have to figure it
|
|
|
3986 out by ourselves. */
|
|
|
3987 if (NILP (n) || EQ (n, Qminus))
|
|
|
3988 {
|
|
|
3989 /* Going forwards is easy. If that is what we are doing then just
|
|
|
3990 set value and the section which handles the user specifying a
|
|
|
3991 positive value will work. */
|
|
|
3992 if (direction == 1)
|
|
|
3993 {
|
|
|
3994 value = window_displayed_height (w) - next_screen_context_lines;
|
|
|
3995 value = (value < 1 ? 1 : value);
|
|
|
3996 }
|
|
|
3997
|
|
|
3998 /* Going backwards is hard. We can't use the same loop used if the
|
|
|
3999 user specified a negative value because we care about
|
|
|
4000 next_screen_context_lines. In a variable height world you don't
|
|
|
4001 know how many lines above you can actually be displayed and still
|
|
|
4002 have the context lines appear. So we leave value set to 0 and add
|
|
|
4003 a separate section to deal with this. */
|
|
|
4004
|
|
|
4005 }
|
|
|
4006
|
|
|
4007 if (direction == 1 && !value)
|
|
|
4008 {
|
|
|
4009 return;
|
|
|
4010 }
|
|
|
4011 else if (value > 0)
|
|
|
4012 {
|
|
|
4013 int vtarget;
|
|
|
4014 Bufpos startp, old_start;
|
|
|
4015
|
|
|
4016 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4017 startp = vmotion (w, old_start, value, &vtarget);
|
|
|
4018
|
|
|
4019 if (vtarget < value &&
|
|
|
4020 (w->window_end_pos[CURRENT_DISP] == -1
|
|
|
4021 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b))))
|
|
|
4022 {
|
|
|
4023 maybe_signal_error (Qend_of_buffer, Qnil, Qwindow, errb);
|
|
|
4024 return;
|
|
|
4025 }
|
|
|
4026 else
|
|
|
4027 {
|
|
|
4028 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4029 w->buffer);
|
|
|
4030 w->force_start = 1;
|
|
|
4031 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4032 MARK_WINDOWS_CHANGED (w);
|
|
|
4033
|
|
|
4034 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4035 {
|
|
|
4036 if (selected)
|
|
|
4037 BUF_SET_PT (b, startp);
|
|
|
4038 else
|
|
|
4039 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4040 make_int (startp),
|
|
|
4041 w->buffer);
|
|
|
4042 }
|
|
|
4043 }
|
|
|
4044 }
|
|
|
4045 else if (value < 0)
|
|
|
4046 {
|
|
|
4047 int vtarget;
|
|
|
4048 Bufpos startp, old_start;
|
|
|
4049
|
|
|
4050 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4051 startp = vmotion (w, old_start, value, &vtarget);
|
|
|
4052
|
|
|
4053 if (vtarget > value
|
|
|
4054 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4055 {
|
|
|
4056 maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
|
4057 return;
|
|
|
4058 }
|
|
|
4059 else
|
|
|
4060 {
|
|
|
4061 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4062 w->buffer);
|
|
|
4063 w->force_start = 1;
|
|
|
4064 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4065 MARK_WINDOWS_CHANGED (w);
|
|
|
4066
|
|
|
4067 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4068 {
|
|
|
4069 Bufpos new_point;
|
|
|
4070
|
|
|
4071 if (MINI_WINDOW_P (w))
|
|
|
4072 new_point = startp;
|
|
|
4073 else
|
|
|
4074 new_point = start_of_last_line (w, startp);
|
|
|
4075
|
|
|
4076 if (selected)
|
|
|
4077 BUF_SET_PT (b, new_point);
|
|
|
4078 else
|
|
|
4079 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4080 make_int (new_point),
|
|
|
4081 w->buffer);
|
|
|
4082 }
|
|
|
4083 }
|
|
|
4084 }
|
|
|
4085 else /* value == 0 && direction == -1 */
|
|
|
4086 {
|
|
|
4087 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4088 {
|
|
|
4089 maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
|
4090 return;
|
|
|
4091 }
|
|
|
4092 else
|
|
|
4093 {
|
|
|
4094 int vtarget;
|
|
|
4095 int movement = next_screen_context_lines - 1;
|
|
|
4096 Bufpos old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
4097 Bufpos bottom = vmotion (w, old_startp, movement, &vtarget);
|
|
|
4098 Bufpos startp =
|
|
|
4099 start_with_point_on_display_line (w, bottom,
|
|
|
4100 -1 - (movement - vtarget));
|
|
|
4101
|
|
|
4102 if (startp >= old_startp)
|
|
|
4103 startp = vmotion (w, old_startp, -1, NULL);
|
|
|
4104
|
|
|
4105 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4106 w->buffer);
|
|
|
4107 w->force_start = 1;
|
|
|
4108 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4109 MARK_WINDOWS_CHANGED (w);
|
|
|
4110
|
|
|
4111 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4112 {
|
|
|
4113 Bufpos new_point = start_of_last_line (w, startp);
|
|
|
4114
|
|
|
4115 if (selected)
|
|
|
4116 BUF_SET_PT (b, new_point);
|
|
|
4117 else
|
|
|
4118 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4119 make_int (new_point),
|
|
|
4120 w->buffer);
|
|
|
4121 }
|
|
|
4122 }
|
|
|
4123 }
|
|
|
4124
|
|
|
4125 }
|
|
|
4126
|
|
20
|
4127 DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /*
|
|
0
|
4128 Scroll text of current window upward ARG lines; or near full screen if no ARG.
|
|
|
4129 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
|
4130 Negative ARG means scroll downward.
|
|
|
4131 When calling from a program, supply a number as argument or nil.
|
|
265
|
4132 On attempt to scroll past end of buffer, `end-of-buffer' is signaled.
|
|
|
4133 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is
|
|
|
4134 signaled.
|
|
20
|
4135 */
|
|
|
4136 (n))
|
|
0
|
4137 {
|
|
265
|
4138 window_scroll (Fselected_window (Qnil), n, 1, ERROR_ME);
|
|
0
|
4139 return Qnil;
|
|
|
4140 }
|
|
|
4141
|
|
20
|
4142 DEFUN ("scroll-down", Fscroll_down, 0, 1, "_P", /*
|
|
0
|
4143 Scroll text of current window downward ARG lines; or near full screen if no ARG.
|
|
|
4144 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
|
4145 Negative ARG means scroll upward.
|
|
|
4146 When calling from a program, supply a number as argument or nil.
|
|
265
|
4147 On attempt to scroll past end of buffer, `end-of-buffer' is signaled.
|
|
|
4148 On attempt to scroll past beginning of buffer, `beginning-of-buffer' is
|
|
|
4149 signaled.
|
|
20
|
4150 */
|
|
|
4151 (n))
|
|
0
|
4152 {
|
|
265
|
4153 window_scroll (Fselected_window (Qnil), n, -1, ERROR_ME);
|
|
0
|
4154 return Qnil;
|
|
|
4155 }
|
|
|
4156
|
|
20
|
4157 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, 0, 0, 0, /*
|
|
185
|
4158 Return the other window for "other window scroll" commands.
|
|
0
|
4159 If in the minibuffer, `minibuffer-scroll-window' if non-nil
|
|
|
4160 specifies the window.
|
|
|
4161 If `other-window-scroll-buffer' is non-nil, a window
|
|
|
4162 showing that buffer is used.
|
|
20
|
4163 */
|
|
|
4164 ())
|
|
0
|
4165 {
|
|
|
4166 Lisp_Object window;
|
|
|
4167 Lisp_Object selected_window = Fselected_window (Qnil);
|
|
|
4168
|
|
|
4169 if (MINI_WINDOW_P (XWINDOW (selected_window))
|
|
274
|
4170 && !NILP (Vminibuffer_scroll_window))
|
|
|
4171 window = Vminibuffer_scroll_window;
|
|
0
|
4172 /* If buffer is specified, scroll that buffer. */
|
|
|
4173 else if (!NILP (Vother_window_scroll_buffer))
|
|
|
4174 {
|
|
|
4175 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil);
|
|
|
4176 if (NILP (window))
|
|
|
4177 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil);
|
|
|
4178 }
|
|
|
4179 else
|
|
|
4180 {
|
|
|
4181 /* Nothing specified; look for a neighboring window on the same
|
|
|
4182 frame. */
|
|
|
4183 window = Fnext_window (selected_window, Qnil, Qnil, Qnil);
|
|
|
4184
|
|
|
4185 if (EQ (window, selected_window))
|
|
|
4186 /* That didn't get us anywhere; look for a window on another
|
|
|
4187 visible frame. */
|
|
|
4188 do
|
|
|
4189 window = Fnext_window (window, Qnil, Qt, Qnil);
|
|
|
4190 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window))))
|
|
|
4191 && ! EQ (window, selected_window));
|
|
|
4192 }
|
|
|
4193
|
|
|
4194 CHECK_LIVE_WINDOW (window);
|
|
|
4195
|
|
|
4196 if (EQ (window, selected_window))
|
|
|
4197 error ("There is no other window");
|
|
|
4198
|
|
|
4199 return window;
|
|
|
4200 }
|
|
|
4201
|
|
20
|
4202 DEFUN ("scroll-other-window", Fscroll_other_window, 0, 1, "_P", /*
|
|
0
|
4203 Scroll next window upward ARG lines; or near full frame if no ARG.
|
|
|
4204 The next window is the one below the current one; or the one at the top
|
|
|
4205 if the current one is at the bottom. Negative ARG means scroll downward.
|
|
|
4206 When calling from a program, supply a number as argument or nil.
|
|
|
4207
|
|
274
|
4208 If in the minibuffer, `minibuffer-scroll-window' if non-nil
|
|
0
|
4209 specifies the window to scroll.
|
|
|
4210 If `other-window-scroll-buffer' is non-nil, scroll the window
|
|
|
4211 showing that buffer, popping the buffer up if necessary.
|
|
20
|
4212 */
|
|
|
4213 (n))
|
|
0
|
4214 {
|
|
|
4215 window_scroll (Fother_window_for_scrolling (), n, 1, ERROR_ME);
|
|
|
4216 return Qnil;
|
|
|
4217 }
|
|
|
4218
|
|
20
|
4219 DEFUN ("scroll-left", Fscroll_left, 0, 1, "_P", /*
|
|
0
|
4220 Scroll selected window display ARG columns left.
|
|
|
4221 Default for ARG is window width minus 2.
|
|
20
|
4222 */
|
|
|
4223 (arg))
|
|
0
|
4224 {
|
|
|
4225 Lisp_Object window = Fselected_window (Qnil);
|
|
|
4226 struct window *w = XWINDOW (window);
|
|
|
4227
|
|
|
4228 if (NILP (arg))
|
|
|
4229 arg = make_int (window_char_width (w, 0) - 2);
|
|
|
4230 else
|
|
|
4231 arg = Fprefix_numeric_value (arg);
|
|
|
4232
|
|
149
|
4233 return Fset_window_hscroll (window, make_int (w->hscroll + XINT (arg)));
|
|
0
|
4234 }
|
|
|
4235
|
|
20
|
4236 DEFUN ("scroll-right", Fscroll_right, 0, 1, "_P", /*
|
|
0
|
4237 Scroll selected window display ARG columns right.
|
|
|
4238 Default for ARG is window width minus 2.
|
|
20
|
4239 */
|
|
|
4240 (arg))
|
|
0
|
4241 {
|
|
|
4242 Lisp_Object window = Fselected_window (Qnil);
|
|
|
4243 struct window *w = XWINDOW (window);
|
|
|
4244
|
|
|
4245 if (NILP (arg))
|
|
|
4246 arg = make_int (window_char_width (w, 0) - 2);
|
|
|
4247 else
|
|
|
4248 arg = Fprefix_numeric_value (arg);
|
|
|
4249
|
|
149
|
4250 return Fset_window_hscroll (window, make_int (w->hscroll - XINT (arg)));
|
|
0
|
4251 }
|
|
280
|
4252
|
|
|
4253 DEFUN ("center-to-window-line", Fcenter_to_window_line, 0, 2, "_P", /*
|
|
|
4254 Center point in WINDOW. With N, put point on line N.
|
|
0
|
4255 The desired position of point is always relative to the window.
|
|
|
4256 If WINDOW is nil, the selected window is used.
|
|
20
|
4257 */
|
|
|
4258 (n, window))
|
|
0
|
4259 {
|
|
280
|
4260 struct window *w = decode_window (window);
|
|
|
4261 struct buffer *b = XBUFFER (w->buffer);
|
|
|
4262 Bufpos opoint = BUF_PT (b);
|
|
0
|
4263 Bufpos startp;
|
|
280
|
4264
|
|
|
4265 if (NILP (n))
|
|
|
4266 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w));
|
|
0
|
4267 else
|
|
|
4268 {
|
|
|
4269 n = Fprefix_numeric_value (n);
|
|
|
4270 CHECK_INT (n);
|
|
|
4271 startp = start_with_point_on_display_line (w, opoint, XINT (n));
|
|
|
4272 }
|
|
|
4273
|
|
|
4274 Fset_marker (w->start[CURRENT_DISP], make_int (startp), w->buffer);
|
|
185
|
4275
|
|
0
|
4276 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4277 w->force_start = 1;
|
|
|
4278 MARK_WINDOWS_CHANGED (w);
|
|
|
4279 return Qnil;
|
|
|
4280 }
|
|
280
|
4281
|
|
20
|
4282 DEFUN ("move-to-window-line", Fmove_to_window_line, 1, 2, "_P", /*
|
|
0
|
4283 Position point relative to WINDOW.
|
|
|
4284 With no argument, position text at center of window.
|
|
|
4285 An argument specifies window line; zero means top of window,
|
|
|
4286 negative means relative to bottom of window.
|
|
|
4287 If WINDOW is nil, the selected window is used.
|
|
20
|
4288 */
|
|
|
4289 (arg, window))
|
|
0
|
4290 {
|
|
|
4291 struct window *w;
|
|
|
4292 struct buffer *b;
|
|
|
4293 int height;
|
|
|
4294 Bufpos start, new_point;
|
|
|
4295 int selected;
|
|
|
4296
|
|
280
|
4297 /* Don't use decode_window() because we need the new value of
|
|
|
4298 WINDOW. */
|
|
0
|
4299 if (NILP (window))
|
|
|
4300 window = Fselected_window (Qnil);
|
|
|
4301 else
|
|
|
4302 CHECK_WINDOW (window);
|
|
|
4303 w = XWINDOW (window);
|
|
|
4304 b = XBUFFER (w->buffer);
|
|
|
4305
|
|
|
4306 height = window_displayed_height (w);
|
|
|
4307 selected = EQ (window, Fselected_window (w->frame));
|
|
|
4308
|
|
|
4309 if (NILP (arg))
|
|
|
4310 {
|
|
|
4311 int retval;
|
|
|
4312
|
|
|
4313 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
4314 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b))
|
|
|
4315 {
|
|
|
4316 new_point = point_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4317
|
|
|
4318 if (selected)
|
|
|
4319 BUF_SET_PT (b, new_point);
|
|
|
4320 else
|
|
|
4321 Fset_window_point (window, make_int (new_point));
|
|
|
4322
|
|
|
4323 retval = line_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4324 }
|
|
|
4325 else
|
|
|
4326 {
|
|
|
4327 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4328 if (start < BUF_BEGV (b))
|
|
|
4329 start = BUF_BEGV (b);
|
|
|
4330 else if (start > BUF_ZV (b))
|
|
|
4331 start = BUF_ZV (b);
|
|
|
4332
|
|
|
4333 if (selected)
|
|
|
4334 new_point = BUF_PT (b);
|
|
|
4335 else
|
|
|
4336 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4337
|
|
|
4338 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4339
|
|
|
4340 if (selected)
|
|
|
4341 BUF_SET_PT (b, new_point);
|
|
|
4342 else
|
|
|
4343 Fset_window_point (window, make_int (new_point));
|
|
|
4344
|
|
|
4345 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4346 }
|
|
|
4347
|
|
149
|
4348 return make_int (retval);
|
|
0
|
4349 }
|
|
|
4350 else
|
|
|
4351 {
|
|
|
4352 /* #### Is this going to work right when at eob? */
|
|
|
4353 arg = Fprefix_numeric_value (arg);
|
|
|
4354 if (XINT (arg) < 0)
|
|
|
4355 XSETINT (arg, XINT (arg) + height);
|
|
|
4356 }
|
|
|
4357
|
|
|
4358 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4359 if (start < BUF_BEGV (b) || start > BUF_ZV (b))
|
|
|
4360 {
|
|
|
4361 if (selected)
|
|
|
4362 new_point = BUF_PT (b);
|
|
|
4363 else
|
|
|
4364 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4365
|
|
|
4366 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0);
|
|
|
4367
|
|
|
4368 if (selected)
|
|
|
4369 BUF_SET_PT (b, new_point);
|
|
|
4370 else
|
|
|
4371 Fset_window_point (window, make_int (new_point));
|
|
|
4372
|
|
|
4373 Fset_marker (w->start[CURRENT_DISP], make_int (new_point),
|
|
|
4374 w->buffer);
|
|
|
4375 w->start_at_line_beg = beginning_of_line_p (b, new_point);
|
|
|
4376 w->force_start = 1;
|
|
|
4377 }
|
|
|
4378 else
|
|
|
4379 {
|
|
|
4380 if (selected)
|
|
|
4381 BUF_SET_PT (b, start);
|
|
|
4382 else
|
|
|
4383 Fset_window_point (window, make_int (start));
|
|
|
4384 }
|
|
|
4385
|
|
|
4386 if (selected)
|
|
288
|
4387 return Fvertical_motion (arg, window, Qnil);
|
|
0
|
4388 else
|
|
|
4389 {
|
|
|
4390 int vpos;
|
|
|
4391 new_point = vmotion (XWINDOW (window),
|
|
|
4392 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
4393 XINT (arg), &vpos);
|
|
|
4394 Fset_window_point (window, make_int (new_point));
|
|
|
4395 return make_int (vpos);
|
|
|
4396 }
|
|
|
4397 }
|
|
|
4398
|
|
|
4399
|
|
|
4400 static int
|
|
|
4401 map_windows_1 (Lisp_Object window,
|
|
|
4402 int (*mapfun) (struct window *w, void *closure),
|
|
|
4403 void *closure)
|
|
|
4404 {
|
|
|
4405 for (; !NILP (window); window = XWINDOW (window)->next)
|
|
|
4406 {
|
|
272
|
4407 int retval;
|
|
0
|
4408 struct window *w = XWINDOW (window);
|
|
251
|
4409
|
|
0
|
4410 if (!NILP (w->vchild))
|
|
|
4411 retval = map_windows_1 (w->vchild, mapfun, closure);
|
|
|
4412 else if (!NILP (w->hchild))
|
|
|
4413 retval = map_windows_1 (w->hchild, mapfun, closure);
|
|
|
4414 else
|
|
|
4415 retval = (mapfun) (w, closure);
|
|
272
|
4416
|
|
0
|
4417 if (retval)
|
|
|
4418 return retval;
|
|
|
4419 }
|
|
|
4420
|
|
272
|
4421 return 0;
|
|
0
|
4422 }
|
|
|
4423
|
|
|
4424 /* Map MAPFUN over the windows in F. CLOSURE is passed to each
|
|
251
|
4425 invocation of MAPFUN. If any invocation of MAPFUN returns
|
|
|
4426 non-zero, the mapping is halted. Otherwise, map_windows() maps
|
|
|
4427 over all windows in F.
|
|
|
4428
|
|
286
|
4429 If MAPFUN creates or deletes windows, the behaviour is undefined. */
|
|
251
|
4430
|
|
284
|
4431 int
|
|
0
|
4432 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure),
|
|
|
4433 void *closure)
|
|
|
4434 {
|
|
251
|
4435 if (f)
|
|
284
|
4436 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure);
|
|
251
|
4437 else
|
|
|
4438 {
|
|
|
4439 Lisp_Object frmcons, devcons, concons;
|
|
|
4440
|
|
|
4441 FRAME_LOOP_NO_BREAK(frmcons, devcons, concons)
|
|
|
4442 {
|
|
284
|
4443 int v = map_windows_1 (FRAME_ROOT_WINDOW (XFRAME (XCAR (frmcons))),
|
|
|
4444 mapfun, closure);
|
|
|
4445 if (v)
|
|
|
4446 return v;
|
|
251
|
4447 }
|
|
|
4448 }
|
|
286
|
4449
|
|
|
4450 return 0;
|
|
0
|
4451 }
|
|
|
4452
|
|
|
4453
|
|
|
4454 static void
|
|
|
4455 modeline_shadow_thickness_changed (Lisp_Object specifier, struct window *w,
|
|
|
4456 Lisp_Object oldval)
|
|
|
4457 {
|
|
|
4458 w->shadow_thickness_changed = 1;
|
|
|
4459 MARK_WINDOWS_CHANGED (w);
|
|
|
4460 }
|
|
|
4461
|
|
284
|
4462 static void
|
|
|
4463 vertical_divider_changed_in_window (Lisp_Object specifier,
|
|
|
4464 struct window *w,
|
|
|
4465 Lisp_Object oldval)
|
|
|
4466 {
|
|
|
4467 MARK_WINDOWS_CHANGED (w);
|
|
|
4468 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (XFRAME (WINDOW_FRAME (w)));
|
|
|
4469 }
|
|
|
4470
|
|
0
|
4471 /* also used in scrollbar.c */
|
|
|
4472 void
|
|
|
4473 some_window_value_changed (Lisp_Object specifier, struct window *w,
|
|
|
4474 Lisp_Object oldval)
|
|
|
4475 {
|
|
|
4476 MARK_WINDOWS_CHANGED (w);
|
|
|
4477 }
|
|
|
4478
|
|
|
4479 #ifdef MEMORY_USAGE_STATS
|
|
|
4480
|
|
|
4481 struct window_stats
|
|
|
4482 {
|
|
|
4483 int face;
|
|
|
4484 int glyph;
|
|
|
4485 #ifdef HAVE_SCROLLBARS
|
|
|
4486 int scrollbar;
|
|
|
4487 #endif
|
|
|
4488 int line_start;
|
|
|
4489 int other_redisplay;
|
|
|
4490 int other;
|
|
|
4491 };
|
|
|
4492
|
|
|
4493 static void
|
|
|
4494 compute_window_mirror_usage (struct window_mirror *mir,
|
|
|
4495 struct window_stats *stats,
|
|
|
4496 struct overhead_stats *ovstats)
|
|
|
4497 {
|
|
|
4498 if (!mir)
|
|
|
4499 return;
|
|
|
4500 stats->other += malloced_storage_size (mir, sizeof (struct window_mirror),
|
|
|
4501 ovstats);
|
|
|
4502 #ifdef HAVE_SCROLLBARS
|
|
|
4503 {
|
|
|
4504 struct device *d = XDEVICE (FRAME_DEVICE (mir->frame));
|
|
|
4505
|
|
|
4506 stats->scrollbar +=
|
|
|
4507 compute_scrollbar_instance_usage (d, mir->scrollbar_vertical_instance,
|
|
|
4508 ovstats);
|
|
|
4509 stats->scrollbar +=
|
|
|
4510 compute_scrollbar_instance_usage (d, mir->scrollbar_horizontal_instance,
|
|
|
4511 ovstats);
|
|
|
4512 }
|
|
149
|
4513 #endif /* HAVE_SCROLLBARS */
|
|
0
|
4514 stats->other_redisplay +=
|
|
|
4515 compute_display_line_dynarr_usage (mir->current_display_lines, ovstats);
|
|
|
4516 stats->other_redisplay +=
|
|
|
4517 compute_display_line_dynarr_usage (mir->desired_display_lines, ovstats);
|
|
|
4518 }
|
|
|
4519
|
|
|
4520 static void
|
|
|
4521 compute_window_usage (struct window *w, struct window_stats *stats,
|
|
|
4522 struct overhead_stats *ovstats)
|
|
|
4523 {
|
|
272
|
4524 xzero (*stats);
|
|
0
|
4525 stats->other += malloced_storage_size (w, sizeof (struct window), ovstats);
|
|
|
4526 stats->face += compute_face_cachel_usage (w->face_cachels, ovstats);
|
|
|
4527 stats->glyph += compute_glyph_cachel_usage (w->glyph_cachels, ovstats);
|
|
|
4528 stats->line_start +=
|
|
|
4529 compute_line_start_cache_dynarr_usage (w->line_start_cache, ovstats);
|
|
|
4530 compute_window_mirror_usage (find_window_mirror (w), stats, ovstats);
|
|
|
4531 }
|
|
|
4532
|
|
20
|
4533 DEFUN ("window-memory-usage", Fwindow_memory_usage, 1, 1, 0, /*
|
|
0
|
4534 Return stats about the memory usage of window WINDOW.
|
|
272
|
4535 The values returned are in the form of an alist of usage types and byte
|
|
0
|
4536 counts. The byte counts attempt to encompass all the memory used
|
|
|
4537 by the window (separate from the memory logically associated with a
|
|
|
4538 buffer or frame), including internal structures and any malloc()
|
|
|
4539 overhead associated with them. In practice, the byte counts are
|
|
|
4540 underestimated because certain memory usage is very hard to determine
|
|
272
|
4541 \(e.g. the amount of memory used inside the Xt library or inside the
|
|
0
|
4542 X server) and because there is other stuff that might logically
|
|
|
4543 be associated with a window, buffer, or frame (e.g. window configurations,
|
|
|
4544 glyphs) but should not obviously be included in the usage counts.
|
|
|
4545
|
|
|
4546 Multiple slices of the total memory usage may be returned, separated
|
|
|
4547 by a nil. Each slice represents a particular view of the memory, a
|
|
|
4548 particular way of partitioning it into groups. Within a slice, there
|
|
|
4549 is no overlap between the groups of memory, and each slice collectively
|
|
|
4550 represents all the memory concerned.
|
|
20
|
4551 */
|
|
|
4552 (window))
|
|
0
|
4553 {
|
|
|
4554 struct window_stats stats;
|
|
|
4555 struct overhead_stats ovstats;
|
|
272
|
4556 Lisp_Object val = Qnil;
|
|
0
|
4557
|
|
|
4558 CHECK_WINDOW (window); /* dead windows should be allowed, no? */
|
|
272
|
4559 xzero (ovstats);
|
|
0
|
4560 compute_window_usage (XWINDOW (window), &stats, &ovstats);
|
|
|
4561
|
|
272
|
4562 val = acons (Qface_cache, make_int (stats.face), val);
|
|
|
4563 val = acons (Qglyph_cache, make_int (stats.glyph), val);
|
|
0
|
4564 #ifdef HAVE_SCROLLBARS
|
|
272
|
4565 val = acons (Qscrollbar_instances, make_int (stats.scrollbar), val);
|
|
0
|
4566 #endif
|
|
272
|
4567 val = acons (Qline_start_cache, make_int (stats.line_start), val);
|
|
|
4568 val = acons (Qother_redisplay, make_int (stats.other_redisplay), val);
|
|
|
4569 val = acons (Qother, make_int (stats.other), val);
|
|
|
4570 val = Fcons (Qnil, val);
|
|
|
4571 val = acons (Qactually_requested, make_int (ovstats.was_requested), val);
|
|
|
4572 val = acons (Qmalloc_overhead, make_int (ovstats.malloc_overhead), val);
|
|
|
4573 val = acons (Qdynarr_overhead, make_int (ovstats.dynarr_overhead), val);
|
|
|
4574
|
|
|
4575 return Fnreverse (val);
|
|
0
|
4576 }
|
|
|
4577
|
|
|
4578 #endif /* MEMORY_USAGE_STATS */
|
|
|
4579
|
|
|
4580
|
|
|
4581 /************************************************************************/
|
|
|
4582 /* Window configurations */
|
|
|
4583 /************************************************************************/
|
|
|
4584
|
|
|
4585 /* #### This window configuration stuff has had serious bugs lurking in it
|
|
|
4586 for years; it would be a -huge- win if this was reimplemented in lisp.
|
|
|
4587 */
|
|
|
4588
|
|
|
4589 /* If you add anything to this structure make sure saved_window_equal
|
|
|
4590 knows about it. */
|
|
|
4591 struct saved_window
|
|
|
4592 {
|
|
|
4593 Lisp_Object window; /* window */
|
|
|
4594 Lisp_Object buffer; /* buffer */
|
|
|
4595 Lisp_Object start; /* copied marker */
|
|
|
4596 Lisp_Object pointm; /* copied marker */
|
|
|
4597 Lisp_Object sb_point; /* copied marker */
|
|
|
4598 Lisp_Object mark; /* copied marker */
|
|
|
4599 int pixel_left;
|
|
|
4600 int pixel_top;
|
|
|
4601 int pixel_width;
|
|
|
4602 int pixel_height;
|
|
|
4603 int hscroll;
|
|
257
|
4604 int modeline_hscroll;
|
|
0
|
4605 int parent_index; /* index into saved_windows */
|
|
|
4606 int prev_index; /* index into saved_windows */
|
|
|
4607 char start_at_line_beg; /* boolean */
|
|
284
|
4608
|
|
|
4609 #define WINDOW_SLOT_DECLARATION
|
|
|
4610 #define WINDOW_SLOT(slot, compare) Lisp_Object slot
|
|
|
4611 #include "winslots.h"
|
|
0
|
4612 };
|
|
|
4613
|
|
|
4614 /* If you add anything to this structure make sure window_config_equal
|
|
|
4615 knows about it. */
|
|
|
4616 struct window_config
|
|
|
4617 {
|
|
|
4618 struct lcrecord_header header;
|
|
|
4619 int frame_width;
|
|
|
4620 int frame_height;
|
|
|
4621 #if 0 /* FSFmacs */
|
|
|
4622 Lisp_Object selected_frame;
|
|
|
4623 #endif
|
|
|
4624 Lisp_Object current_window;
|
|
|
4625 Lisp_Object current_buffer;
|
|
274
|
4626 Lisp_Object minibuffer_scroll_window;
|
|
0
|
4627 Lisp_Object root_window;
|
|
|
4628 /* Record the values of window-min-width and window-min-height
|
|
|
4629 so that window sizes remain consistent with them. */
|
|
|
4630 int min_width, min_height;
|
|
|
4631 int saved_windows_count;
|
|
|
4632 /* Zero-sized arrays aren't ANSI C */
|
|
|
4633 struct saved_window saved_windows[1];
|
|
|
4634 };
|
|
272
|
4635
|
|
0
|
4636 #define SAVED_WINDOW_N(conf, n) (&((conf)->saved_windows[(n)]))
|
|
|
4637 #define XWINDOW_CONFIGURATION(x) XRECORD (x, window_configuration, struct window_config)
|
|
|
4638 #define XSETWINDOW_CONFIGURATION(x, p) XSETRECORD (x, p, window_configuration)
|
|
|
4639 #define WINDOW_CONFIGURATIONP(x) RECORDP (x, window_configuration)
|
|
|
4640 #define GC_WINDOW_CONFIGURATIONP(x) GC_RECORDP (x, window_configuration)
|
|
|
4641 #define CHECK_WINDOW_CONFIGURATION(x) CHECK_RECORD (x, window_configuration)
|
|
|
4642
|
|
|
4643 static Lisp_Object
|
|
|
4644 mark_window_config (Lisp_Object obj, void (*markobj) (Lisp_Object))
|
|
|
4645 {
|
|
|
4646 struct window_config *config = XWINDOW_CONFIGURATION (obj);
|
|
|
4647 int i;
|
|
|
4648 ((markobj) (config->current_window));
|
|
|
4649 ((markobj) (config->current_buffer));
|
|
274
|
4650 ((markobj) (config->minibuffer_scroll_window));
|
|
0
|
4651 ((markobj) (config->root_window));
|
|
217
|
4652
|
|
0
|
4653 for (i = 0; i < config->saved_windows_count; i++)
|
|
|
4654 {
|
|
|
4655 struct saved_window *s = SAVED_WINDOW_N (config, i);
|
|
|
4656 ((markobj) (s->window));
|
|
|
4657 ((markobj) (s->buffer));
|
|
|
4658 ((markobj) (s->start));
|
|
|
4659 ((markobj) (s->pointm));
|
|
|
4660 ((markobj) (s->sb_point));
|
|
|
4661 ((markobj) (s->mark));
|
|
284
|
4662 #if 0
|
|
|
4663 /* #### This looked like this. I do not see why specifier cached
|
|
|
4664 values should not be marked, as such specifiers as toolbars
|
|
|
4665 might have GC-able instances. Freed configs are not marked,
|
|
|
4666 aren't they? -- kkm */
|
|
0
|
4667 ((markobj) (s->dedicated));
|
|
284
|
4668 #else
|
|
|
4669 #define WINDOW_SLOT(slot, compare) ((markobj) (s->slot))
|
|
|
4670 #include "winslots.h"
|
|
|
4671 #endif
|
|
0
|
4672 }
|
|
149
|
4673 return Qnil;
|
|
0
|
4674 }
|
|
|
4675
|
|
272
|
4676 static size_t
|
|
0
|
4677 sizeof_window_config_for_n_windows (int n)
|
|
|
4678 {
|
|
|
4679 return (sizeof (struct window_config) +
|
|
|
4680 /* n - 1 because zero-sized arrays aren't ANSI C */
|
|
|
4681 (n - 1) *sizeof (struct saved_window));
|
|
|
4682 }
|
|
|
4683
|
|
272
|
4684 static size_t
|
|
0
|
4685 sizeof_window_config (CONST void *h)
|
|
|
4686 {
|
|
185
|
4687 CONST struct window_config *c = (CONST struct window_config *) h;
|
|
0
|
4688 return sizeof_window_config_for_n_windows (c->saved_windows_count);
|
|
|
4689 }
|
|
|
4690
|
|
|
4691 static void
|
|
|
4692 print_window_config (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
4693 {
|
|
|
4694 struct window_config *config = XWINDOW_CONFIGURATION (obj);
|
|
|
4695 char buf[200];
|
|
|
4696 if (print_readably)
|
|
|
4697 error ("printing unreadable object #<window-configuration 0x%x>",
|
|
|
4698 config->header.uid);
|
|
|
4699 write_c_string ("#<window-configuration ", printcharfun);
|
|
|
4700 sprintf (buf, "0x%x>", config->header.uid);
|
|
|
4701 write_c_string (buf, printcharfun);
|
|
|
4702 }
|
|
|
4703
|
|
272
|
4704 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("window-configuration",
|
|
|
4705 window_configuration,
|
|
|
4706 mark_window_config,
|
|
|
4707 print_window_config,
|
|
|
4708 0, 0, 0, sizeof_window_config,
|
|
|
4709 struct window_config);
|
|
|
4710
|
|
|
4711
|
|
0
|
4712 /* Returns a boolean indicating whether the two saved windows are
|
|
|
4713 identical. */
|
|
|
4714 static int
|
|
|
4715 saved_window_equal (struct saved_window *win1, struct saved_window *win2)
|
|
|
4716 {
|
|
284
|
4717 #define WINDOW_SLOT(slot, compare) \
|
|
|
4718 if (!compare (win1->slot, win2->slot)) \
|
|
|
4719 return 0;
|
|
|
4720 #include "winslots.h"
|
|
|
4721
|
|
149
|
4722 return
|
|
|
4723 EQ (win1->window, win2->window) &&
|
|
|
4724 EQ (win1->buffer, win2->buffer) &&
|
|
195
|
4725 internal_equal (win1->start, win2->start, 0) &&
|
|
|
4726 internal_equal (win1->pointm, win2->pointm, 0) &&
|
|
|
4727 internal_equal (win1->sb_point, win2->sb_point, 0) &&
|
|
|
4728 internal_equal (win1->mark, win2->mark, 0) &&
|
|
149
|
4729 win1->pixel_left == win2->pixel_left &&
|
|
|
4730 win1->pixel_top == win2->pixel_top &&
|
|
|
4731 win1->pixel_width == win2->pixel_width &&
|
|
|
4732 win1->pixel_height == win2->pixel_height &&
|
|
|
4733 win1->hscroll == win2->hscroll &&
|
|
257
|
4734 win1->modeline_hscroll == win2->modeline_hscroll &&
|
|
149
|
4735 win1->parent_index == win2->parent_index &&
|
|
|
4736 win1->prev_index == win2->prev_index &&
|
|
284
|
4737 win1->start_at_line_beg == win2->start_at_line_beg;
|
|
0
|
4738 }
|
|
|
4739
|
|
|
4740 /* Returns a boolean indicating whether the two given configurations
|
|
|
4741 are identical. */
|
|
|
4742 static int
|
|
|
4743 window_config_equal (Lisp_Object conf1, Lisp_Object conf2)
|
|
|
4744 {
|
|
|
4745 struct window_config *fig1, *fig2;
|
|
|
4746 int i;
|
|
|
4747
|
|
|
4748 /* First check if they are truly the same. */
|
|
|
4749 if (EQ (conf1, conf2))
|
|
|
4750 return 1;
|
|
|
4751
|
|
|
4752 fig1 = XWINDOW_CONFIGURATION (conf1);
|
|
|
4753 fig2 = XWINDOW_CONFIGURATION (conf2);
|
|
|
4754
|
|
149
|
4755 if (!((fig1->saved_windows_count == fig2->saved_windows_count) &&
|
|
274
|
4756 EQ (fig1->current_window, fig2->current_window) &&
|
|
|
4757 EQ (fig1->current_buffer, fig2->current_buffer) &&
|
|
|
4758 EQ (fig1->root_window, fig2->root_window) &&
|
|
|
4759 EQ (fig1->minibuffer_scroll_window, fig2->minibuffer_scroll_window) &&
|
|
149
|
4760 fig1->frame_width == fig2->frame_width &&
|
|
|
4761 fig1->frame_height == fig2->frame_height))
|
|
0
|
4762 return 0;
|
|
|
4763
|
|
|
4764 for (i = 0; i < fig1->saved_windows_count; i++)
|
|
|
4765 {
|
|
|
4766 if (!saved_window_equal (SAVED_WINDOW_N (fig1, i),
|
|
|
4767 SAVED_WINDOW_N (fig2, i)))
|
|
|
4768 return 0;
|
|
|
4769 }
|
|
|
4770
|
|
|
4771 return 1;
|
|
|
4772 }
|
|
|
4773
|
|
20
|
4774 DEFUN ("window-configuration-p", Fwindow_configuration_p, 1, 1, 0, /*
|
|
272
|
4775 Return t if OBJECT is a window-configuration object.
|
|
20
|
4776 */
|
|
|
4777 (obj))
|
|
0
|
4778 {
|
|
149
|
4779 return WINDOW_CONFIGURATIONP (obj) ? Qt : Qnil;
|
|
0
|
4780 }
|
|
|
4781
|
|
251
|
4782 static int
|
|
|
4783 mark_windows_in_use_closure (struct window *w, void *closure)
|
|
0
|
4784 {
|
|
251
|
4785 int mark = *(int *)closure;
|
|
|
4786 w->config_mark = mark;
|
|
|
4787 return 0;
|
|
|
4788 }
|
|
|
4789
|
|
|
4790 static void
|
|
|
4791 mark_windows_in_use (struct frame *f, int mark)
|
|
|
4792 {
|
|
|
4793 map_windows (f, mark_windows_in_use_closure, &mark);
|
|
0
|
4794 }
|
|
|
4795
|
|
|
4796 /* Lisp_Object return value so it can be used in record_unwind_protect() */
|
|
|
4797 static Lisp_Object
|
|
|
4798 free_window_configuration (Lisp_Object window_config)
|
|
|
4799 {
|
|
|
4800 int i;
|
|
|
4801 struct window_config *config = XWINDOW_CONFIGURATION (window_config);
|
|
|
4802
|
|
|
4803 /* Free all the markers. It's not completely necessary that
|
|
|
4804 we do this (window configs sitting in a free list aren't
|
|
|
4805 marked normally so the markers wouldn't be marked anyway)
|
|
|
4806 but it's more efficient. */
|
|
|
4807 for (i = 0; i < config->saved_windows_count; i++)
|
|
|
4808 {
|
|
|
4809 struct saved_window *p = SAVED_WINDOW_N (config, i);
|
|
|
4810
|
|
|
4811 if (!NILP (p->pointm))
|
|
|
4812 {
|
|
|
4813 free_marker (XMARKER (p->pointm));
|
|
|
4814 p->pointm = Qnil;
|
|
|
4815 }
|
|
|
4816 if (!NILP (p->start))
|
|
|
4817 {
|
|
|
4818 free_marker (XMARKER (p->start));
|
|
|
4819 p->start = Qnil;
|
|
|
4820 }
|
|
|
4821 if (!NILP (p->sb_point))
|
|
|
4822 {
|
|
|
4823 free_marker (XMARKER (p->sb_point));
|
|
|
4824 p->sb_point = Qnil;
|
|
|
4825 }
|
|
|
4826 if (!NILP (p->mark))
|
|
|
4827 {
|
|
|
4828 free_marker (XMARKER (p->mark));
|
|
|
4829 p->mark = Qnil;
|
|
|
4830 }
|
|
|
4831 }
|
|
|
4832
|
|
|
4833 if (config->saved_windows_count <= countof (Vwindow_configuration_free_list))
|
|
|
4834 free_managed_lcrecord (Vwindow_configuration_free_list
|
|
|
4835 [config->saved_windows_count - 1],
|
|
|
4836 window_config);
|
|
|
4837
|
|
|
4838 return Qnil;
|
|
|
4839 }
|
|
|
4840
|
|
20
|
4841 DEFUN ("set-window-configuration", Fset_window_configuration, 1, 1, 0, /*
|
|
0
|
4842 Set the configuration of windows and buffers as specified by CONFIGURATION.
|
|
|
4843 CONFIGURATION must be a value previously returned
|
|
|
4844 by `current-window-configuration' (which see).
|
|
20
|
4845 */
|
|
|
4846 (configuration))
|
|
0
|
4847 {
|
|
|
4848 struct window *w;
|
|
|
4849 struct window_config *config;
|
|
|
4850 struct saved_window *p;
|
|
|
4851 Lisp_Object new_current_buffer;
|
|
|
4852 int k;
|
|
|
4853 Lisp_Object frame;
|
|
|
4854 struct frame *f;
|
|
|
4855 struct gcpro gcpro1;
|
|
|
4856 Lisp_Object old_window_config;
|
|
|
4857 int previous_frame_height;
|
|
|
4858 int previous_frame_width;
|
|
|
4859 int specpdl_count = specpdl_depth ();
|
|
|
4860
|
|
|
4861 GCPRO1 (configuration);
|
|
|
4862
|
|
|
4863 CHECK_WINDOW_CONFIGURATION (configuration);
|
|
|
4864 config = XWINDOW_CONFIGURATION (configuration);
|
|
|
4865
|
|
|
4866 frame = XWINDOW (SAVED_WINDOW_N (config, 0)->window)->frame;
|
|
|
4867 f = XFRAME (frame);
|
|
|
4868
|
|
|
4869 /* Do not signal an error here if the frame was deleted. There are
|
|
|
4870 reasonable cases where we could get here with a deleted frame and
|
|
|
4871 just want to do close to nothing instead. */
|
|
|
4872
|
|
|
4873 if (FRAME_LIVE_P (f))
|
|
|
4874 {
|
|
|
4875 /* restore the frame characteristics */
|
|
185
|
4876
|
|
0
|
4877 new_current_buffer = config->current_buffer;
|
|
|
4878 if (!BUFFER_LIVE_P (XBUFFER (new_current_buffer)))
|
|
|
4879 new_current_buffer = Qnil;
|
|
|
4880
|
|
|
4881 /*
|
|
|
4882 * Assumed precondition: w->config_mark = 0 for all w
|
|
|
4883 * This procedure should ensure this is true by the time it exits
|
|
|
4884 * to ensure the precondition for future calls.
|
|
|
4885 *
|
|
|
4886 * We use w->config_mark to know whether we're modifying a
|
|
|
4887 * window that is currently visible on the frame (#### we
|
|
|
4888 * should just be able to check whether the window is dead
|
|
|
4889 * or not, but this way is safer?). As we process each
|
|
|
4890 * window, we set its config_mark to 0. At the end, we
|
|
|
4891 * go through all the windows that used to be on the frame,
|
|
|
4892 * set each one's config_mark to 0 (to maintain the
|
|
|
4893 * assumed precondition) and delete each one that's no
|
|
|
4894 * longer in use.
|
|
|
4895 *
|
|
|
4896 * #### Using a window-configuration to keep track of
|
|
|
4897 * the current windows is wasteful. All we need is the
|
|
|
4898 * list of windows, so we could just use a dynarr.
|
|
|
4899 */
|
|
|
4900 old_window_config = Fcurrent_window_configuration (frame);
|
|
|
4901
|
|
|
4902 /* If the new configuration is already equal to the old, then stop
|
|
|
4903 right here. This saves the work below and it also saves
|
|
|
4904 triggering a full redisplay of this window. This is a huge win
|
|
|
4905 when using the mouse since the mode motion code uses
|
|
|
4906 save-window-excursion extensively but will rarely cause the
|
|
|
4907 configuration to actually change. */
|
|
|
4908 if (window_config_equal (configuration, old_window_config))
|
|
|
4909 {
|
|
|
4910 free_window_configuration (old_window_config);
|
|
|
4911 UNGCPRO;
|
|
|
4912 return Qnil;
|
|
|
4913 }
|
|
|
4914
|
|
|
4915 /* We can't quit or even check for quit because that may cause
|
|
|
4916 investigation of the frame state, which may crash if the frame is
|
|
|
4917 in an inconsistent state. */
|
|
|
4918 begin_dont_check_for_quit ();
|
|
|
4919 record_unwind_protect (free_window_configuration, old_window_config);
|
|
|
4920
|
|
251
|
4921 mark_windows_in_use (f, 1);
|
|
0
|
4922
|
|
|
4923 previous_frame_width = FRAME_WIDTH (f);
|
|
|
4924 previous_frame_height = FRAME_HEIGHT (f);
|
|
|
4925 /* If the frame has been resized since this window configuration was
|
|
|
4926 made, we change the frame to the size specified in the
|
|
|
4927 configuration, restore the configuration, and then resize it
|
|
|
4928 back. We keep track of the prevailing height in these variables. */
|
|
|
4929 if (config->frame_height != FRAME_HEIGHT (f)
|
|
|
4930 || config->frame_width != FRAME_WIDTH (f))
|
|
|
4931 change_frame_size (f, config->frame_height, config->frame_width, 0);
|
|
|
4932
|
|
|
4933 /* Temporarily avoid any problems with windows that are smaller
|
|
|
4934 than they are supposed to be. */
|
|
|
4935 window_min_height = 1;
|
|
|
4936 window_min_width = 1;
|
|
|
4937
|
|
|
4938 /* OK, now restore all the windows in the window config.
|
|
|
4939 This may involve "undeleting" windows, since the
|
|
|
4940 windows in the window config may be deleted.
|
|
|
4941 */
|
|
|
4942 for (k = 0; k < config->saved_windows_count; k++)
|
|
|
4943 {
|
|
|
4944 p = SAVED_WINDOW_N (config, k);
|
|
|
4945 w = XWINDOW (p->window);
|
|
|
4946 w->next = Qnil;
|
|
|
4947
|
|
|
4948 /* The window might be dead. In this case, its redisplay
|
|
|
4949 structures were freed, so we need to reallocate them. */
|
|
|
4950 if (!w->face_cachels)
|
|
|
4951 {
|
|
185
|
4952 w->face_cachels = Dynarr_new (face_cachel);
|
|
0
|
4953 reset_face_cachels (w);
|
|
|
4954 }
|
|
|
4955 if (!w->glyph_cachels)
|
|
185
|
4956 w->glyph_cachels = Dynarr_new (glyph_cachel);
|
|
0
|
4957 if (!w->line_start_cache)
|
|
185
|
4958 w->line_start_cache = Dynarr_new (line_start_cache);
|
|
0
|
4959 w->dead = 0;
|
|
|
4960
|
|
|
4961 if (p->parent_index >= 0)
|
|
|
4962 w->parent = SAVED_WINDOW_N (config, p->parent_index)->window;
|
|
|
4963 else
|
|
|
4964 w->parent = Qnil;
|
|
|
4965
|
|
|
4966 if (p->prev_index >= 0)
|
|
|
4967 {
|
|
|
4968 w->prev = SAVED_WINDOW_N (config, p->prev_index)->window;
|
|
|
4969
|
|
|
4970 /* This is true for a minibuffer-only frame. */
|
|
|
4971 if (!NILP (w->mini_p) && EQ (w->prev, p->window))
|
|
|
4972 w->next = Qnil;
|
|
|
4973 else
|
|
|
4974 XWINDOW (w->prev)->next = p->window;
|
|
|
4975 }
|
|
|
4976 else
|
|
|
4977 {
|
|
|
4978 w->prev = Qnil;
|
|
|
4979 if (!NILP (w->parent))
|
|
|
4980 {
|
|
|
4981 if (WINDOW_WIDTH (p) == WINDOW_WIDTH (XWINDOW (w->parent)))
|
|
|
4982 {
|
|
|
4983 XWINDOW (w->parent)->vchild = p->window;
|
|
|
4984 XWINDOW (w->parent)->hchild = Qnil;
|
|
|
4985 }
|
|
|
4986 else
|
|
|
4987 {
|
|
|
4988 XWINDOW (w->parent)->hchild = p->window;
|
|
|
4989 XWINDOW (w->parent)->vchild = Qnil;
|
|
|
4990 }
|
|
|
4991 }
|
|
|
4992 }
|
|
|
4993 if (!w->config_mark)
|
|
|
4994 {
|
|
|
4995 /* #### This should be equivalent to the window previously
|
|
|
4996 having been dead. If we're brave, we'll put in an
|
|
|
4997 assertion to this effect. */
|
|
|
4998 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
4999 }
|
|
|
5000 else /* if (!EQ (w->buffer, p->buffer)) */
|
|
|
5001 {
|
|
|
5002 /* With the new redisplay we let it know that a change has
|
|
|
5003 been made and it will take care of the rest. If we don't
|
|
|
5004 tell it something has possibly changed it could lead to
|
|
|
5005 incorrect display. */
|
|
|
5006 MARK_WINDOWS_CHANGED (w);
|
|
|
5007 }
|
|
|
5008
|
|
|
5009 WINDOW_LEFT (w) = WINDOW_LEFT (p);
|
|
|
5010 WINDOW_TOP (w) = WINDOW_TOP (p);
|
|
|
5011 WINDOW_WIDTH (w) = WINDOW_WIDTH (p);
|
|
|
5012 WINDOW_HEIGHT (w) = WINDOW_HEIGHT (p);
|
|
|
5013 w->hscroll = p->hscroll;
|
|
257
|
5014 w->modeline_hscroll = p->modeline_hscroll;
|
|
0
|
5015 w->line_cache_last_updated = Qzero;
|
|
|
5016 SET_LAST_MODIFIED (w, 1);
|
|
|
5017 SET_LAST_FACECHANGE (w);
|
|
|
5018 w->config_mark = 0;
|
|
|
5019
|
|
284
|
5020 #define WINDOW_SLOT(slot, compare) w->slot = p->slot;
|
|
|
5021 #include "winslots.h"
|
|
|
5022
|
|
0
|
5023 /* Reinstall the saved buffer and pointers into it. */
|
|
|
5024 if (NILP (p->buffer))
|
|
|
5025 w->buffer = p->buffer;
|
|
|
5026 else
|
|
|
5027 {
|
|
|
5028 if (BUFFER_LIVE_P (XBUFFER (p->buffer)))
|
|
|
5029 /* If saved buffer is alive, install it. */
|
|
|
5030 {
|
|
|
5031 w->buffer = p->buffer;
|
|
|
5032 w->start_at_line_beg = p->start_at_line_beg;
|
|
|
5033 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
5034 Fmarker_position (p->start),
|
|
|
5035 w->buffer);
|
|
|
5036 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
5037 Fmarker_position (p->pointm),
|
|
|
5038 w->buffer);
|
|
|
5039 set_marker_restricted (w->sb_point,
|
|
|
5040 Fmarker_position (p->sb_point),
|
|
|
5041 w->buffer);
|
|
|
5042 Fset_marker (XBUFFER (w->buffer)->mark,
|
|
|
5043 Fmarker_position (p->mark), w->buffer);
|
|
|
5044
|
|
|
5045 /* As documented in Fcurrent_window_configuration, don't
|
|
|
5046 save the location of point in the buffer which was current
|
|
|
5047 when the window configuration was recorded. */
|
|
|
5048 if (!EQ (p->buffer, new_current_buffer) &&
|
|
|
5049 XBUFFER (p->buffer) == current_buffer)
|
|
223
|
5050 Fgoto_char (w->pointm[CURRENT_DISP], Qnil);
|
|
0
|
5051 }
|
|
|
5052 else if (NILP (w->buffer) ||
|
|
|
5053 !BUFFER_LIVE_P (XBUFFER (w->buffer)))
|
|
|
5054 /* Else if window's old buffer is dead too, get a live one. */
|
|
|
5055 {
|
|
|
5056 /* #### The following line makes me nervous... */
|
|
|
5057 /* w->buffer = Fcdr (Fcar (XFRAME (w->frame)->buffer_alist));*/
|
|
|
5058 w->buffer = Fget_buffer_create (QSscratch);
|
|
|
5059 /* w->buffer = Fother_buffer (Qnil, w->frame, Qnil); */
|
|
|
5060 /* This will set the markers to beginning of visible
|
|
|
5061 range. */
|
|
|
5062 set_marker_restricted (w->start[CURRENT_DISP], Qzero, w->buffer);
|
|
|
5063 set_marker_restricted (w->pointm[CURRENT_DISP], Qzero,
|
|
|
5064 w->buffer);
|
|
|
5065 set_marker_restricted (w->sb_point, Qzero, w->buffer);
|
|
|
5066 w->start_at_line_beg = 1;
|
|
|
5067 }
|
|
|
5068 else
|
|
|
5069 /* Keeping window's old buffer; make sure the markers
|
|
|
5070 are real. */
|
|
|
5071 {
|
|
|
5072 /* Set window markers at start of visible range. */
|
|
|
5073 if (XMARKER (w->start[CURRENT_DISP])->buffer == 0)
|
|
|
5074 set_marker_restricted (w->start[CURRENT_DISP], Qzero,
|
|
|
5075 w->buffer);
|
|
|
5076 if (XMARKER (w->sb_point)->buffer == 0)
|
|
|
5077 set_marker_restricted (w->sb_point, Qzero, w->buffer);
|
|
|
5078 if (XMARKER (w->pointm[CURRENT_DISP])->buffer == 0)
|
|
|
5079 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
5080 make_int
|
|
|
5081 (BUF_PT (XBUFFER (w->buffer))),
|
|
|
5082 w->buffer);
|
|
|
5083 w->start_at_line_beg = 1;
|
|
|
5084 }
|
|
|
5085 }
|
|
|
5086 }
|
|
|
5087
|
|
|
5088 FRAME_ROOT_WINDOW (f) = config->root_window;
|
|
|
5089 /* Note that FSFmacs unilaterally calls Fselect_window() here, and
|
|
|
5090 then calls do_switch_frame() below to select the frame that was
|
|
|
5091 recorded in the window config as being selected.
|
|
|
5092
|
|
|
5093 Instead, we don't ever change the selected frame, and either
|
|
|
5094 call Fselect_window() below if the window config's frame is
|
|
|
5095 currently selected, or just set the selected window of the
|
|
|
5096 window config's frame. */
|
|
|
5097
|
|
|
5098 /* Set the frame height to the value it had before this function. */
|
|
|
5099 if (previous_frame_height != FRAME_HEIGHT (f)
|
|
|
5100 || previous_frame_width != FRAME_WIDTH (f))
|
|
|
5101 change_frame_size (f, previous_frame_height, previous_frame_width, 0);
|
|
|
5102
|
|
|
5103 /* If restoring in the current frame make the window current,
|
|
|
5104 otherwise just update the frame selected_window slot to be
|
|
|
5105 the restored current_window. */
|
|
|
5106 if (f == selected_frame ())
|
|
|
5107 {
|
|
|
5108 /* When using `pop-window-configuration', often the minibuffer
|
|
|
5109 ends up as the selected window even though it's not active ...
|
|
|
5110 I really don't know the cause of this, but it should never
|
|
|
5111 happen. This kludge should fix it.
|
|
|
5112
|
|
|
5113 #### Find out why this is really going wrong. */
|
|
|
5114 if (!minibuf_level &&
|
|
|
5115 MINI_WINDOW_P (XWINDOW (config->current_window)))
|
|
|
5116 Fselect_window (Fnext_window (config->current_window,
|
|
282
|
5117 Qnil, Qnil, Qnil),
|
|
|
5118 Qnil);
|
|
0
|
5119 else
|
|
282
|
5120 Fselect_window (config->current_window, Qnil);
|
|
0
|
5121 if (!NILP (new_current_buffer))
|
|
|
5122 Fset_buffer (new_current_buffer);
|
|
|
5123 else
|
|
|
5124 Fset_buffer (XWINDOW (Fselected_window (Qnil))->buffer);
|
|
|
5125 }
|
|
|
5126 else
|
|
|
5127 set_frame_selected_window (f, config->current_window);
|
|
|
5128 }
|
|
173
|
5129 else
|
|
|
5130 old_window_config = Qnil; /* Warning suppression */
|
|
0
|
5131
|
|
|
5132 /* Restore the minimum heights recorded in the configuration. */
|
|
|
5133 window_min_height = config->min_height;
|
|
|
5134 window_min_width = config->min_width;
|
|
|
5135
|
|
|
5136 #if 0 /* FSFmacs */
|
|
|
5137 /* see above comment */
|
|
|
5138 /* Fselect_window will have made f the selected frame, so we
|
|
|
5139 reselect the proper frame here. Fhandle_switch_frame will change the
|
|
|
5140 selected window too, but that doesn't make the call to
|
|
|
5141 Fselect_window above totally superfluous; it still sets f's
|
|
|
5142 selected window. */
|
|
|
5143 if (FRAME_LIVE_P (XFRAME (config->selected_frame)))
|
|
|
5144 do_switch_frame (config->selected_frame, Qnil, 0);
|
|
|
5145 #endif
|
|
|
5146
|
|
274
|
5147 Vminibuffer_scroll_window = config->minibuffer_scroll_window;
|
|
0
|
5148
|
|
|
5149 if (FRAME_LIVE_P (f))
|
|
|
5150 {
|
|
|
5151 /* Do this before calling recompute_all_cached_specifiers_in_window()
|
|
|
5152 so that things like redisplay_redraw_cursor() won't abort due
|
|
|
5153 to no window mirror present. */
|
|
|
5154 f->mirror_dirty = 1;
|
|
|
5155
|
|
|
5156 config = XWINDOW_CONFIGURATION (old_window_config);
|
|
|
5157 for (k = 0; k < config->saved_windows_count; k++)
|
|
|
5158 {
|
|
|
5159 p = SAVED_WINDOW_N (config, k);
|
|
|
5160 w = XWINDOW (p->window);
|
|
|
5161 /* Remember, we set w->config_mark on all currently visible
|
|
|
5162 windows, and reset it on all newly visible windows.
|
|
|
5163 Any windows still marked need to be deleted. */
|
|
|
5164 if (w->config_mark)
|
|
|
5165 {
|
|
|
5166 mark_window_as_deleted (w);
|
|
|
5167 w->config_mark = 0;
|
|
|
5168 }
|
|
|
5169 else
|
|
|
5170 {
|
|
|
5171 /* We just potentially changed the window's buffer and
|
|
|
5172 potentially turned a dead window into a live one,
|
|
|
5173 so we need to recompute the cached specifier values. */
|
|
|
5174 recompute_all_cached_specifiers_in_window (w);
|
|
|
5175 }
|
|
|
5176 }
|
|
|
5177 }
|
|
|
5178
|
|
|
5179 /* Now restore things, when everything else if OK. */
|
|
|
5180
|
|
|
5181 unbind_to (specpdl_count, Qnil);
|
|
|
5182
|
|
|
5183 UNGCPRO;
|
|
|
5184
|
|
149
|
5185 return Qnil;
|
|
0
|
5186 }
|
|
|
5187
|
|
|
5188 /* Mark all subwindows of a window as deleted. The argument
|
|
|
5189 W is actually the subwindow tree of the window in question. */
|
|
|
5190
|
|
|
5191 void
|
|
|
5192 delete_all_subwindows (struct window *w)
|
|
|
5193 {
|
|
272
|
5194 if (!NILP (w->next)) delete_all_subwindows (XWINDOW (w->next));
|
|
|
5195 if (!NILP (w->vchild)) delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
5196 if (!NILP (w->hchild)) delete_all_subwindows (XWINDOW (w->hchild));
|
|
0
|
5197
|
|
|
5198 mark_window_as_deleted (w);
|
|
|
5199 }
|
|
|
5200
|
|
|
5201
|
|
|
5202 static int
|
|
|
5203 count_windows (struct window *window)
|
|
|
5204 {
|
|
272
|
5205 return 1 +
|
|
|
5206 (!NILP (window->next) ? count_windows (XWINDOW (window->next)) : 0) +
|
|
|
5207 (!NILP (window->vchild) ? count_windows (XWINDOW (window->vchild)) : 0) +
|
|
|
5208 (!NILP (window->hchild) ? count_windows (XWINDOW (window->hchild)) : 0);
|
|
0
|
5209 }
|
|
|
5210
|
|
|
5211 static int
|
|
|
5212 saved_window_index (Lisp_Object window, struct window_config *config, int lim)
|
|
|
5213 {
|
|
|
5214 int j;
|
|
|
5215 for (j = 0; j < lim; j++)
|
|
|
5216 {
|
|
|
5217 if (EQ (SAVED_WINDOW_N (config, j)->window, window))
|
|
149
|
5218 return j;
|
|
272
|
5219 }
|
|
0
|
5220 abort ();
|
|
|
5221 return 0; /* suppress compiler warning */
|
|
|
5222 }
|
|
|
5223
|
|
|
5224 static int
|
|
|
5225 save_window_save (Lisp_Object window, struct window_config *config, int i)
|
|
|
5226 {
|
|
|
5227 struct window *w;
|
|
|
5228
|
|
|
5229 for (; !NILP (window); window = w->next)
|
|
|
5230 {
|
|
272
|
5231 struct saved_window *p = SAVED_WINDOW_N (config, i);
|
|
|
5232
|
|
0
|
5233 w = XWINDOW (window);
|
|
|
5234 i++;
|
|
|
5235 p->window = window;
|
|
|
5236 p->buffer = w->buffer;
|
|
|
5237 WINDOW_LEFT (p) = WINDOW_LEFT (w);
|
|
|
5238 WINDOW_TOP (p) = WINDOW_TOP (w);
|
|
|
5239 WINDOW_WIDTH (p) = WINDOW_WIDTH (w);
|
|
|
5240 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (w);
|
|
|
5241 p->hscroll = w->hscroll;
|
|
257
|
5242 p->modeline_hscroll = w->modeline_hscroll;
|
|
284
|
5243
|
|
|
5244 #define WINDOW_SLOT(slot, compare) p->slot = w->slot;
|
|
|
5245 #include "winslots.h"
|
|
255
|
5246
|
|
0
|
5247 if (!NILP (w->buffer))
|
|
|
5248 {
|
|
|
5249 /* Save w's value of point in the window configuration.
|
|
|
5250 If w is the selected window, then get the value of point
|
|
|
5251 from the buffer; pointm is garbage in the selected window. */
|
|
|
5252 if (EQ (window, Fselected_window (Qnil)))
|
|
|
5253 {
|
|
|
5254 p->pointm = noseeum_make_marker ();
|
|
|
5255 Fset_marker (p->pointm,
|
|
|
5256 make_int (BUF_PT (XBUFFER (w->buffer))),
|
|
|
5257 w->buffer);
|
|
|
5258 }
|
|
|
5259 else
|
|
|
5260 p->pointm = noseeum_copy_marker (w->pointm[CURRENT_DISP], Qnil);
|
|
|
5261
|
|
|
5262 p->start = noseeum_copy_marker (w->start[CURRENT_DISP], Qnil);
|
|
|
5263 p->sb_point = noseeum_copy_marker (w->sb_point, Qnil);
|
|
|
5264 p->start_at_line_beg = w->start_at_line_beg;
|
|
|
5265
|
|
|
5266 p->mark = noseeum_copy_marker (XBUFFER (w->buffer)->mark, Qnil);
|
|
|
5267 }
|
|
|
5268 else
|
|
|
5269 {
|
|
|
5270 p->pointm = Qnil;
|
|
|
5271 p->start = Qnil;
|
|
|
5272 p->sb_point = Qnil;
|
|
|
5273 p->mark = Qnil;
|
|
|
5274 p->start_at_line_beg = 0;
|
|
|
5275 }
|
|
|
5276
|
|
|
5277 if (NILP (w->parent))
|
|
|
5278 p->parent_index = -1;
|
|
|
5279 else
|
|
|
5280 p->parent_index = saved_window_index (w->parent, config, i);
|
|
|
5281 if (NILP (w->prev))
|
|
|
5282 p->prev_index = -1;
|
|
|
5283 else
|
|
|
5284 p->prev_index = saved_window_index (w->prev, config, i);
|
|
|
5285 if (!NILP (w->vchild))
|
|
|
5286 i = save_window_save (w->vchild, config, i);
|
|
|
5287 if (!NILP (w->hchild))
|
|
|
5288 i = save_window_save (w->hchild, config, i);
|
|
|
5289 }
|
|
|
5290
|
|
|
5291 return i;
|
|
|
5292 }
|
|
|
5293
|
|
|
5294 #if 0 /* FSFmacs */
|
|
|
5295 /* Added to doc string:
|
|
|
5296
|
|
|
5297 This also records the currently selected frame, and FRAME's focus
|
|
|
5298 redirection (see `redirect-frame-focus').
|
|
|
5299
|
|
|
5300 */
|
|
|
5301 #endif
|
|
|
5302
|
|
20
|
5303 DEFUN ("current-window-configuration", Fcurrent_window_configuration, 0, 1, 0, /*
|
|
0
|
5304 Return an object representing the current window configuration of FRAME.
|
|
|
5305 If FRAME is nil or omitted, use the selected frame.
|
|
|
5306 This describes the number of windows, their sizes and current buffers,
|
|
|
5307 and for each displayed buffer, where display starts, and the positions of
|
|
|
5308 point and mark. An exception is made for point in the current buffer:
|
|
|
5309 its value is -not- saved.
|
|
20
|
5310 */
|
|
|
5311 (frame))
|
|
0
|
5312 {
|
|
272
|
5313 Lisp_Object result;
|
|
|
5314 struct frame *f = decode_frame (frame);
|
|
0
|
5315 struct window_config *config;
|
|
272
|
5316 int n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f)));
|
|
|
5317
|
|
0
|
5318 if (n_windows <= countof (Vwindow_configuration_free_list))
|
|
272
|
5319 config = XWINDOW_CONFIGURATION (allocate_managed_lcrecord
|
|
|
5320 (Vwindow_configuration_free_list
|
|
|
5321 [n_windows - 1]));
|
|
0
|
5322 else
|
|
|
5323 /* More than ten windows; just allocate directly */
|
|
185
|
5324 config = (struct window_config *)
|
|
|
5325 alloc_lcrecord (sizeof_window_config_for_n_windows (n_windows),
|
|
|
5326 lrecord_window_configuration);
|
|
0
|
5327 XSETWINDOW_CONFIGURATION (result, config);
|
|
|
5328
|
|
|
5329 config->frame_width = FRAME_WIDTH (f);
|
|
|
5330 config->frame_height = FRAME_HEIGHT (f);
|
|
|
5331 config->current_window = FRAME_SELECTED_WINDOW (f);
|
|
|
5332 XSETBUFFER (config->current_buffer, current_buffer);
|
|
274
|
5333 config->minibuffer_scroll_window = Vminibuffer_scroll_window;
|
|
0
|
5334 config->root_window = FRAME_ROOT_WINDOW (f);
|
|
|
5335 config->min_height = window_min_height;
|
|
|
5336 config->min_width = window_min_width;
|
|
|
5337 config->saved_windows_count = n_windows;
|
|
|
5338 save_window_save (FRAME_ROOT_WINDOW (f), config, 0);
|
|
149
|
5339 return result;
|
|
0
|
5340 }
|
|
|
5341
|
|
|
5342 Lisp_Object
|
|
|
5343 save_window_excursion_unwind (Lisp_Object window_config)
|
|
|
5344 {
|
|
|
5345 Lisp_Object val = Fset_window_configuration (window_config);
|
|
|
5346 free_window_configuration (window_config);
|
|
|
5347 return val;
|
|
|
5348 }
|
|
|
5349
|
|
20
|
5350 DEFUN ("save-window-excursion", Fsave_window_excursion, 0, UNEVALLED, 0, /*
|
|
0
|
5351 Execute body, preserving window sizes and contents.
|
|
|
5352 Restores which buffer appears in which window, where display starts,
|
|
|
5353 as well as the current buffer.
|
|
|
5354 Does not restore the value of point in current buffer.
|
|
20
|
5355 */
|
|
|
5356 (args))
|
|
0
|
5357 {
|
|
|
5358 /* This function can GC */
|
|
|
5359 Lisp_Object val;
|
|
|
5360 int speccount = specpdl_depth ();
|
|
|
5361
|
|
|
5362 record_unwind_protect (save_window_excursion_unwind,
|
|
|
5363 Fcurrent_window_configuration (Qnil));
|
|
|
5364 val = Fprogn (args);
|
|
|
5365 return unbind_to (speccount, val);
|
|
|
5366 }
|
|
|
5367
|
|
|
5368
|
|
|
5369 #ifdef DEBUG_XEMACS
|
|
|
5370 /* This is short and simple in elisp, but... it was written to debug
|
|
|
5371 problems purely on the C side. That is where we need to call it so
|
|
|
5372 here it is. */
|
|
|
5373 static void
|
|
|
5374 debug_print_window (Lisp_Object window, int level)
|
|
|
5375 {
|
|
272
|
5376 int i;
|
|
|
5377 Lisp_Object child = Fwindow_first_vchild (window);
|
|
|
5378
|
|
0
|
5379 if (NILP (child))
|
|
|
5380 child = Fwindow_first_hchild (window);
|
|
|
5381
|
|
272
|
5382 for (i = level; i > 0; i--)
|
|
|
5383 putc ('\t', stderr);
|
|
|
5384
|
|
|
5385 fputs ("#<window", stderr);
|
|
|
5386 {
|
|
|
5387 Lisp_Object buffer = XWINDOW (window)->buffer;
|
|
|
5388 if (!NILP (buffer) && BUFFERP (buffer))
|
|
|
5389 fprintf (stderr, " on %s", XSTRING_DATA (XBUFFER (buffer)->name));
|
|
|
5390 }
|
|
0
|
5391 fprintf (stderr, " 0x%x>", XWINDOW (window)->header.uid);
|
|
|
5392
|
|
|
5393 while (!NILP (child))
|
|
|
5394 {
|
|
|
5395 debug_print_window (child, level + 1);
|
|
|
5396 child = Fwindow_next_child (child);
|
|
|
5397 }
|
|
|
5398 }
|
|
|
5399
|
|
|
5400 void debug_print_windows (struct frame *f);
|
|
|
5401 void
|
|
|
5402 debug_print_windows (struct frame *f)
|
|
|
5403 {
|
|
|
5404 debug_print_window (f->root_window, 0);
|
|
272
|
5405 putc ('\n', stderr);
|
|
0
|
5406 }
|
|
|
5407 #endif /* DEBUG_XEMACS */
|
|
|
5408
|
|
|
5409
|
|
|
5410 /************************************************************************/
|
|
|
5411 /* initialization */
|
|
|
5412 /************************************************************************/
|
|
|
5413
|
|
|
5414 void
|
|
|
5415 syms_of_window (void)
|
|
|
5416 {
|
|
|
5417 defsymbol (&Qwindowp, "windowp");
|
|
|
5418 defsymbol (&Qwindow_live_p, "window-live-p");
|
|
|
5419 defsymbol (&Qwindow_configurationp, "window-configuration-p");
|
|
|
5420 defsymbol (&Qscroll_up, "scroll-up");
|
|
|
5421 defsymbol (&Qscroll_down, "scroll-down");
|
|
|
5422 defsymbol (&Qtemp_buffer_show_hook, "temp-buffer-show-hook");
|
|
|
5423 defsymbol (&Qdisplay_buffer, "display-buffer");
|
|
|
5424
|
|
|
5425 #ifdef MEMORY_USAGE_STATS
|
|
|
5426 defsymbol (&Qface_cache, "face-cache");
|
|
|
5427 defsymbol (&Qglyph_cache, "glyph-cache");
|
|
|
5428 defsymbol (&Qline_start_cache, "line-start-cache");
|
|
|
5429 #ifdef HAVE_SCROLLBARS
|
|
|
5430 defsymbol (&Qscrollbar_instances, "scrollbar-instances");
|
|
|
5431 #endif
|
|
|
5432 defsymbol (&Qother_redisplay, "other-redisplay");
|
|
|
5433 /* Qother in general.c */
|
|
|
5434 #endif
|
|
|
5435
|
|
20
|
5436 DEFSUBR (Fselected_window);
|
|
|
5437 DEFSUBR (Fminibuffer_window);
|
|
|
5438 DEFSUBR (Fwindow_minibuffer_p);
|
|
|
5439 DEFSUBR (Fwindowp);
|
|
|
5440 DEFSUBR (Fwindow_live_p);
|
|
|
5441 DEFSUBR (Fwindow_first_hchild);
|
|
|
5442 DEFSUBR (Fwindow_first_vchild);
|
|
|
5443 DEFSUBR (Fwindow_next_child);
|
|
|
5444 DEFSUBR (Fwindow_previous_child);
|
|
|
5445 DEFSUBR (Fwindow_parent);
|
|
|
5446 DEFSUBR (Fwindow_lowest_p);
|
|
|
5447 DEFSUBR (Fwindow_highest_p);
|
|
|
5448 DEFSUBR (Fwindow_leftmost_p);
|
|
|
5449 DEFSUBR (Fwindow_rightmost_p);
|
|
|
5450 DEFSUBR (Fpos_visible_in_window_p);
|
|
|
5451 DEFSUBR (Fwindow_buffer);
|
|
|
5452 DEFSUBR (Fwindow_frame);
|
|
|
5453 DEFSUBR (Fwindow_height);
|
|
|
5454 DEFSUBR (Fwindow_displayed_height);
|
|
|
5455 DEFSUBR (Fwindow_width);
|
|
|
5456 DEFSUBR (Fwindow_pixel_height);
|
|
|
5457 DEFSUBR (Fwindow_pixel_width);
|
|
288
|
5458 DEFSUBR (Fwindow_text_area_pixel_height);
|
|
|
5459 DEFSUBR (Fwindow_displayed_text_pixel_height);
|
|
|
5460 DEFSUBR (Fwindow_text_area_pixel_width);
|
|
20
|
5461 DEFSUBR (Fwindow_hscroll);
|
|
265
|
5462 #ifdef MODELINE_IS_SCROLLABLE
|
|
257
|
5463 DEFSUBR (Fmodeline_hscroll);
|
|
272
|
5464 DEFSUBR (Fset_modeline_hscroll);
|
|
265
|
5465 #endif /* MODELINE_IS_SCROLLABLE */
|
|
276
|
5466 #if 0 /* bogus FSF crock */
|
|
20
|
5467 DEFSUBR (Fwindow_redisplay_end_trigger);
|
|
|
5468 DEFSUBR (Fset_window_redisplay_end_trigger);
|
|
0
|
5469 #endif
|
|
20
|
5470 DEFSUBR (Fset_window_hscroll);
|
|
|
5471 DEFSUBR (Fwindow_pixel_edges);
|
|
288
|
5472 DEFSUBR (Fwindow_text_area_pixel_edges);
|
|
20
|
5473 DEFSUBR (Fwindow_point);
|
|
|
5474 DEFSUBR (Fwindow_start);
|
|
|
5475 DEFSUBR (Fwindow_end);
|
|
|
5476 DEFSUBR (Fset_window_point);
|
|
|
5477 DEFSUBR (Fset_window_start);
|
|
|
5478 DEFSUBR (Fwindow_dedicated_p);
|
|
|
5479 DEFSUBR (Fset_window_dedicated_p);
|
|
|
5480 DEFSUBR (Fnext_window);
|
|
|
5481 DEFSUBR (Fprevious_window);
|
|
|
5482 DEFSUBR (Fnext_vertical_window);
|
|
|
5483 DEFSUBR (Fother_window);
|
|
|
5484 DEFSUBR (Fget_lru_window);
|
|
|
5485 DEFSUBR (Fget_largest_window);
|
|
|
5486 DEFSUBR (Fget_buffer_window);
|
|
|
5487 DEFSUBR (Fwindow_left_margin_pixel_width);
|
|
|
5488 DEFSUBR (Fwindow_right_margin_pixel_width);
|
|
|
5489 DEFSUBR (Fdelete_other_windows);
|
|
|
5490 DEFSUBR (Fdelete_windows_on);
|
|
|
5491 DEFSUBR (Freplace_buffer_in_windows);
|
|
|
5492 DEFSUBR (Fdelete_window);
|
|
|
5493 DEFSUBR (Fset_window_buffer);
|
|
|
5494 DEFSUBR (Fselect_window);
|
|
|
5495 DEFSUBR (Fsplit_window);
|
|
|
5496 DEFSUBR (Fenlarge_window);
|
|
263
|
5497 DEFSUBR (Fenlarge_window_pixels);
|
|
20
|
5498 DEFSUBR (Fshrink_window);
|
|
263
|
5499 DEFSUBR (Fshrink_window_pixels);
|
|
20
|
5500 DEFSUBR (Fscroll_up);
|
|
|
5501 DEFSUBR (Fscroll_down);
|
|
|
5502 DEFSUBR (Fscroll_left);
|
|
|
5503 DEFSUBR (Fscroll_right);
|
|
|
5504 DEFSUBR (Fother_window_for_scrolling);
|
|
|
5505 DEFSUBR (Fscroll_other_window);
|
|
280
|
5506 DEFSUBR (Fcenter_to_window_line);
|
|
20
|
5507 DEFSUBR (Fmove_to_window_line);
|
|
0
|
5508 #ifdef MEMORY_USAGE_STATS
|
|
20
|
5509 DEFSUBR (Fwindow_memory_usage);
|
|
0
|
5510 #endif
|
|
20
|
5511 DEFSUBR (Fwindow_configuration_p);
|
|
|
5512 DEFSUBR (Fset_window_configuration);
|
|
|
5513 DEFSUBR (Fcurrent_window_configuration);
|
|
|
5514 DEFSUBR (Fsave_window_excursion);
|
|
0
|
5515 }
|
|
|
5516
|
|
|
5517 void
|
|
|
5518 vars_of_window (void)
|
|
|
5519 {
|
|
|
5520 /* Make sure all windows get marked */
|
|
|
5521 minibuf_window = Qnil;
|
|
|
5522 staticpro (&minibuf_window);
|
|
|
5523
|
|
|
5524 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /*
|
|
|
5525 *Non-nil means to scroll if point lands on a line which is clipped.
|
|
|
5526 */ );
|
|
|
5527 scroll_on_clipped_lines = 1;
|
|
|
5528
|
|
|
5529 DEFVAR_LISP ("temp-buffer-show-hook", &Vtemp_buffer_show_hook /*
|
|
|
5530 See `temp-buffer-show-function'.
|
|
|
5531 */ );
|
|
|
5532 Vtemp_buffer_show_hook = Qnil;
|
|
|
5533
|
|
|
5534 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /*
|
|
|
5535 Non-nil means call as function to display a help buffer.
|
|
|
5536 The function is called with one argument, the buffer to be displayed.
|
|
|
5537 Used by `with-output-to-temp-buffer'.
|
|
|
5538 If this function is used, then it must do the entire job of showing
|
|
|
5539 the buffer; `temp-buffer-show-hook' is not run unless this function runs it.
|
|
|
5540 */ );
|
|
|
5541 Vtemp_buffer_show_function = Qnil;
|
|
|
5542
|
|
274
|
5543 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuffer_scroll_window /*
|
|
0
|
5544 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll.
|
|
|
5545 */ );
|
|
274
|
5546 Vminibuffer_scroll_window = Qnil;
|
|
0
|
5547
|
|
|
5548 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /*
|
|
|
5549 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window.
|
|
|
5550 */ );
|
|
|
5551 Vother_window_scroll_buffer = Qnil;
|
|
|
5552
|
|
|
5553 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /*
|
|
|
5554 *Number of lines of continuity when scrolling by screenfuls.
|
|
|
5555 */ );
|
|
|
5556 next_screen_context_lines = 2;
|
|
|
5557
|
|
|
5558 DEFVAR_INT ("window-min-height", &window_min_height /*
|
|
|
5559 *Delete any window less than this tall (including its modeline).
|
|
|
5560 */ );
|
|
|
5561 window_min_height = 4;
|
|
|
5562
|
|
|
5563 DEFVAR_INT ("window-min-width", &window_min_width /*
|
|
|
5564 *Delete any window less than this wide.
|
|
|
5565 */ );
|
|
|
5566 window_min_width = 10;
|
|
|
5567
|
|
|
5568 {
|
|
|
5569 int i;
|
|
|
5570
|
|
|
5571 for (i = 0; i < countof (Vwindow_configuration_free_list); i++)
|
|
|
5572 {
|
|
|
5573 Vwindow_configuration_free_list[i] =
|
|
|
5574 make_lcrecord_list (sizeof_window_config_for_n_windows (i + 1),
|
|
|
5575 lrecord_window_configuration);
|
|
|
5576 staticpro (&Vwindow_configuration_free_list[i]);
|
|
|
5577 }
|
|
|
5578 }
|
|
|
5579 }
|
|
|
5580
|
|
|
5581 void
|
|
|
5582 specifier_vars_of_window (void)
|
|
|
5583 {
|
|
|
5584 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /*
|
|
|
5585 *How thick to draw 3D shadows around modelines.
|
|
|
5586 If this is set to 0, modelines will be the traditional 2D. Sizes above
|
|
|
5587 10 will be accepted but the maximum thickness that will be drawn is 10.
|
|
|
5588 This is a specifier; use `set-specifier' to change it.
|
|
|
5589 */ );
|
|
|
5590 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger);
|
|
|
5591 /* The initial value for modeline-shadow-thickness is 2, but if the
|
|
|
5592 user removes all specifications we provide a fallback value of 0,
|
|
|
5593 which is probably what was expected. */
|
|
|
5594 set_specifier_fallback (Vmodeline_shadow_thickness,
|
|
|
5595 list1 (Fcons (Qnil, Qzero)));
|
|
|
5596 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_int (2),
|
|
|
5597 Qnil, Qnil, Qnil);
|
|
|
5598 set_specifier_caching (Vmodeline_shadow_thickness,
|
|
|
5599 slot_offset (struct window,
|
|
|
5600 modeline_shadow_thickness),
|
|
|
5601 modeline_shadow_thickness_changed,
|
|
|
5602 0, 0);
|
|
284
|
5603
|
|
0
|
5604 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /*
|
|
|
5605 *Whether the modeline should be displayed.
|
|
|
5606 This is a specifier; use `set-specifier' to change it.
|
|
|
5607 */ );
|
|
|
5608 Vhas_modeline_p = Fmake_specifier (Qboolean);
|
|
|
5609 set_specifier_fallback (Vhas_modeline_p,
|
|
|
5610 list1 (Fcons (Qnil, Qt)));
|
|
|
5611 set_specifier_caching (Vhas_modeline_p,
|
|
|
5612 slot_offset (struct window,
|
|
|
5613 has_modeline_p),
|
|
|
5614 /* #### It's strange that we need a special
|
|
|
5615 flag to indicate that the shadow-thickness
|
|
|
5616 has changed, but not one to indicate that
|
|
|
5617 the modeline has been turned off or on. */
|
|
|
5618 some_window_value_changed,
|
|
|
5619 0, 0);
|
|
284
|
5620
|
|
298
|
5621 DEFVAR_SPECIFIER ("vertical-divider-always-visible-p",
|
|
|
5622 &Vvertical_divider_always_visible_p /*
|
|
|
5623 *Should XEmacs always display vertical dividers between windows.
|
|
|
5624
|
|
|
5625 When this is non-nil, vertical dividers are always shown, and are
|
|
|
5626 draggable. When it is nil, vertical dividers are shown only when
|
|
|
5627 there are no scrollbars in between windows, and are not draggable.
|
|
|
5628
|
|
284
|
5629 This is a specifier; use `set-specifier' to change it.
|
|
|
5630 */ );
|
|
298
|
5631 Vvertical_divider_always_visible_p = Fmake_specifier (Qboolean);
|
|
|
5632 set_specifier_fallback (Vvertical_divider_always_visible_p,
|
|
284
|
5633 list1 (Fcons (Qnil, Qt)));
|
|
298
|
5634 set_specifier_caching (Vvertical_divider_always_visible_p,
|
|
284
|
5635 slot_offset (struct window,
|
|
298
|
5636 vertical_divider_always_visible_p),
|
|
284
|
5637 vertical_divider_changed_in_window,
|
|
|
5638 0, 0);
|
|
|
5639
|
|
|
5640 DEFVAR_SPECIFIER ("vertical-divider-shadow-thickness", &Vvertical_divider_shadow_thickness /*
|
|
298
|
5641 *How thick to draw 3D shadows around vertical dividers.
|
|
284
|
5642 This is a specifier; use `set-specifier' to change it.
|
|
|
5643 */ );
|
|
|
5644 Vvertical_divider_shadow_thickness = Fmake_specifier (Qinteger);
|
|
|
5645 set_specifier_fallback (Vvertical_divider_shadow_thickness,
|
|
|
5646 list1 (Fcons (Qnil, Qzero)));
|
|
|
5647 Fadd_spec_to_specifier (Vvertical_divider_shadow_thickness, make_int (2),
|
|
|
5648 Qnil, Qnil, Qnil);
|
|
|
5649 set_specifier_caching (Vvertical_divider_shadow_thickness,
|
|
|
5650 slot_offset (struct window,
|
|
|
5651 vertical_divider_shadow_thickness),
|
|
|
5652 vertical_divider_changed_in_window,
|
|
|
5653 0, 0);
|
|
|
5654 DEFVAR_SPECIFIER ("vertical-divider-line-width", &Vvertical_divider_line_width /*
|
|
|
5655 *The width of the vertical dividers, not including shadows.
|
|
|
5656
|
|
298
|
5657 For TTY windows, divider line is always one character wide. When
|
|
284
|
5658 instance of this specifier is zero in a TTY window, no divider is
|
|
298
|
5659 drawn at all between windows. When non-zero, a one character wide
|
|
284
|
5660 divider is displayed.
|
|
|
5661
|
|
|
5662 This is a specifier; use `set-specifier' to change it.
|
|
|
5663 */ );
|
|
|
5664
|
|
|
5665 Vvertical_divider_line_width = Fmake_specifier (Qnatnum);
|
|
|
5666 {
|
|
|
5667 Lisp_Object fb = Qnil;
|
|
|
5668 #ifdef HAVE_TTY
|
|
|
5669 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb);
|
|
|
5670 #endif
|
|
|
5671 #ifdef HAVE_X_WINDOWS
|
|
|
5672 fb = Fcons (Fcons (list1 (Qx), make_int (3)), fb);
|
|
|
5673 #endif
|
|
|
5674 #ifdef HAVE_MS_WINDOWS
|
|
|
5675 /* #### This should be made magic and made to obey system settings */
|
|
|
5676 fb = Fcons (Fcons (list1 (Qmswindows), make_int (3)), fb);
|
|
|
5677 #endif
|
|
|
5678 set_specifier_fallback (Vvertical_divider_line_width, fb);
|
|
|
5679 }
|
|
|
5680 set_specifier_caching (Vvertical_divider_line_width,
|
|
|
5681 slot_offset (struct window,
|
|
|
5682 vertical_divider_line_width),
|
|
|
5683 vertical_divider_changed_in_window,
|
|
|
5684 0, 0);
|
|
|
5685
|
|
|
5686 DEFVAR_SPECIFIER ("vertical-divider-spacing", &Vvertical_divider_spacing /*
|
|
|
5687 *How much space to leave around the vertical dividers.
|
|
|
5688
|
|
|
5689 In TTY windows, spacing is always zero, and the value of this
|
|
|
5690 specifier is ignored.
|
|
|
5691
|
|
|
5692 This is a specifier; use `set-specifier' to change it.
|
|
|
5693 */ );
|
|
|
5694 Vvertical_divider_spacing = Fmake_specifier (Qnatnum);
|
|
|
5695 {
|
|
|
5696 Lisp_Object fb = Qnil;
|
|
|
5697 #ifdef HAVE_TTY
|
|
|
5698 fb = Fcons (Fcons (list1 (Qtty), Qzero), fb);
|
|
|
5699 #endif
|
|
|
5700 #ifdef HAVE_X_WINDOWS
|
|
|
5701 /* #### 3D dividers look great on MS Windows with spacing = 0.
|
|
286
|
5702 Should not the same value be the fallback under X? - kkm */
|
|
284
|
5703 fb = Fcons (Fcons (list1 (Qx), make_int (2)), fb);
|
|
|
5704 #endif
|
|
|
5705 #ifdef HAVE_MS_WINDOWS
|
|
|
5706 fb = Fcons (Fcons (list1 (Qmswindows), Qzero), fb);
|
|
|
5707 #endif
|
|
|
5708 set_specifier_fallback (Vvertical_divider_spacing, fb);
|
|
|
5709 }
|
|
|
5710 set_specifier_caching (Vvertical_divider_spacing,
|
|
|
5711 slot_offset (struct window,
|
|
|
5712 vertical_divider_spacing),
|
|
|
5713 vertical_divider_changed_in_window,
|
|
|
5714 0, 0);
|
|
0
|
5715 }
|
