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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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41 Lisp_Object Qwindowp, Qwindow_live_p;
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42 Lisp_Object Qwindow_configurationp;
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43 Lisp_Object Qscroll_up;
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44 Lisp_Object Qscroll_down;
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45 Lisp_Object Qtemp_buffer_show_hook;
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46 Lisp_Object Qdisplay_buffer;
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47
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48 #ifdef MEMORY_USAGE_STATS
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49 Lisp_Object Qface_cache;
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50 Lisp_Object Qglyph_cache;
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51 Lisp_Object Qline_start_cache;
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52 #ifdef HAVE_SCROLLBARS
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53 Lisp_Object Qscrollbar_instances;
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54 #endif
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55 Lisp_Object Qother_redisplay;
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56 #endif
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57
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58 static int window_pixel_width_to_char_width (struct window *w,
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59 int pixel_width,
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60 int include_margins_p);
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61 static int window_char_width_to_pixel_width (struct window *w,
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62 int char_width,
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63 int include_margins_p);
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64 static int window_pixel_height_to_char_height (struct window *w,
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65 int pixel_height,
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66 int include_gutters_p);
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67 static int window_char_height_to_pixel_height (struct window *w,
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68 int char_height,
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69 int include_gutters_p);
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70 static void change_window_height (struct window *w, int delta, int widthflag);
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71
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72
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73 #ifdef ENERGIZE
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74 extern void energize_buffer_shown_hook ();
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75 extern void energize_buffer_hidden_hook ();
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76 extern void energize_window_selected_hook ();
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77 extern void energize_window_deselected_hook ();
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78 extern Lisp_Object desired_psheet_buffer ();
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79 extern void make_psheets_desired ();
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80 #endif
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81
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82 /* Thickness of shadow border around 3d modelines. */
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83 Lisp_Object Vmodeline_shadow_thickness;
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84
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85 /* Whether a modeline should be displayed. */
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86 Lisp_Object Vhas_modeline_p;
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87
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88 /* Scroll if point lands on the bottom line and that line is partially
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89 clipped. */
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90 int scroll_on_clipped_lines;
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91
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92 /* The minibuffer window of the selected frame.
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93 Note that you cannot test for minibufferness of an arbitrary window
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94 by comparing against this; but you can test for minibufferness of
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95 the selected window. */
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96 Lisp_Object minibuf_window;
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97
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98 /* Non-nil means it is the window for C-M-v to scroll
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99 when the minibuffer is selected. */
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100 Lisp_Object Vminibuf_scroll_window;
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101
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102 /* Non-nil means this is the buffer whose window C-M-v should scroll. */
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103 Lisp_Object Vother_window_scroll_buffer;
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104
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105 /* Non-nil means it's function to call to display temp buffers. */
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106 Lisp_Object Vtemp_buffer_show_function;
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107
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108 Lisp_Object Vtemp_buffer_show_hook;
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109
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110 /* If a window gets smaller than either of these, it is removed. */
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111 int window_min_height;
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112 int window_min_width;
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113
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114 /* Hook run at end of temp_output_buffer_show. */
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115 Lisp_Object Qtemp_buffer_show_hook;
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116
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117 /* Number of lines of continuity in scrolling by screenfuls. */
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118 int next_screen_context_lines;
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119
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120 /* List of freed window configurations with 1 - 10 windows. */
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121 Lisp_Object Vwindow_configuration_free_list[10];
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122
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123 #define SET_LAST_MODIFIED(w, cache_too) \
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124 do { \
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125 (w)->last_modified[CURRENT_DISP] = Qzero; \
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126 (w)->last_modified[DESIRED_DISP] = Qzero; \
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127 (w)->last_modified[CMOTION_DISP] = Qzero; \
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128 if (cache_too) \
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129 (w)->line_cache_last_updated = Qzero; \
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130 } while (0)
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131
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132 #define SET_LAST_FACECHANGE(w) \
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133 do { \
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134 (w)->last_facechange[CURRENT_DISP] = Qzero; \
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135 (w)->last_facechange[DESIRED_DISP] = Qzero; \
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136 (w)->last_facechange[CMOTION_DISP] = Qzero; \
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137 } while (0)
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138
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139
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140 static Lisp_Object mark_window (Lisp_Object, void (*) (Lisp_Object));
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141 static void print_window (Lisp_Object, Lisp_Object, int);
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142 static void finalize_window (void *header, int for_disksave);
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143 DEFINE_LRECORD_IMPLEMENTATION ("window", window,
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144 mark_window, print_window, finalize_window,
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145 0, 0, struct window);
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146
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147 #define MARK_DISP_VARIABLE(field) \
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148 ((markobj) (window->field[CURRENT_DISP])); \
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149 ((markobj) (window->field[DESIRED_DISP])); \
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150 ((markobj) (window->field[CMOTION_DISP]));
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151
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152 static Lisp_Object
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153 mark_window (Lisp_Object obj, void (*markobj) (Lisp_Object))
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154 {
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155 struct window *window = XWINDOW (obj);
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156 ((markobj) (window->frame));
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157 ((markobj) (window->mini_p));
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158 ((markobj) (window->next));
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159 ((markobj) (window->prev));
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160 ((markobj) (window->hchild));
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161 ((markobj) (window->vchild));
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162 ((markobj) (window->parent));
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163 ((markobj) (window->buffer));
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164 MARK_DISP_VARIABLE (start);
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165 MARK_DISP_VARIABLE (pointm);
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166 ((markobj) (window->sb_point)); /* #### move to scrollbar.c? */
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167 ((markobj) (window->use_time));
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168 MARK_DISP_VARIABLE (last_modified);
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169 MARK_DISP_VARIABLE (last_point);
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170 MARK_DISP_VARIABLE (last_start);
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171 MARK_DISP_VARIABLE (last_facechange);
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172 ((markobj) (window->line_cache_last_updated));
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173 ((markobj) (window->redisplay_end_trigger));
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174 /* Cached specifiers: */
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175 ((markobj) (window->display_table));
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176 ((markobj) (window->has_modeline_p));
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177 ((markobj) (window->modeline_shadow_thickness));
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178 #ifdef HAVE_SCROLLBARS
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179 ((markobj) (window->scrollbar_width));
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180 ((markobj) (window->scrollbar_height));
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181 ((markobj) (window->scrollbar_pointer));
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182 #endif
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183 ((markobj) (window->left_margin_width));
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184 ((markobj) (window->right_margin_width));
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185 #ifdef HAVE_TOOLBARS
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186 ((markobj) (window->toolbar[0]));
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187 ((markobj) (window->toolbar[1]));
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188 ((markobj) (window->toolbar[2]));
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189 ((markobj) (window->toolbar[3]));
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190 ((markobj) (window->toolbar_size[0]));
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191 ((markobj) (window->toolbar_size[1]));
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192 ((markobj) (window->toolbar_size[2]));
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193 ((markobj) (window->toolbar_size[3]));
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194 ((markobj) (window->toolbar_visible_p[0]));
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195 ((markobj) (window->toolbar_visible_p[1]));
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196 ((markobj) (window->toolbar_visible_p[2]));
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197 ((markobj) (window->toolbar_visible_p[3]));
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198 ((markobj) (window->toolbar_buttons_captioned_p));
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199 ((markobj) (window->default_toolbar));
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200 ((markobj) (window->default_toolbar_height));
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201 ((markobj) (window->default_toolbar_width));
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202 ((markobj) (window->default_toolbar_visible_p));
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203 #endif
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204 ((markobj) (window->minimum_line_ascent));
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205 ((markobj) (window->minimum_line_descent));
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206 ((markobj) (window->use_left_overflow));
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207 ((markobj) (window->use_right_overflow));
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208 #ifdef HAVE_MENUBARS
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209 ((markobj) (window->menubar_visible_p));
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210 #endif
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211 ((markobj) (window->text_cursor_visible_p));
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212 /* End cached specifiers. */
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213 ((markobj) (window->dedicated));
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214 mark_face_cachels (window->face_cachels, markobj);
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215 mark_glyph_cachels (window->glyph_cachels, markobj);
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216 return (Qnil);
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217 }
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218
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219 static void
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220 print_window (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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221 {
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222 char buf[200];
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223
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224 if (print_readably)
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225 error ("printing unreadable object #<window 0x%x>",
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226 XWINDOW (obj)->header.uid);
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227
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228 write_c_string ("#<window", printcharfun);
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229 if (!NILP (XWINDOW (obj)->buffer))
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230 {
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231 Lisp_Object name = XBUFFER (XWINDOW (obj)->buffer)->name;
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232 write_c_string (" on ", printcharfun);
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233 print_internal (name, printcharfun, 1);
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234 }
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235 sprintf (buf, " 0x%x>", XWINDOW (obj)->header.uid);
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236 write_c_string (buf, printcharfun);
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237 }
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238
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239 static void
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240 finalize_window (void *header, int for_disksave)
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241 {
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242 struct window *w = (struct window *) header;
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243
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244 if (w->line_start_cache)
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245 {
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246 Dynarr_free (w->line_start_cache);
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247 w->line_start_cache = 0;
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248 }
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249
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250 if (w->face_cachels)
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251 {
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252 int i;
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253
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254 for (i = 0; i < Dynarr_length (w->face_cachels); i++)
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255 {
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256 struct face_cachel *cachel = Dynarr_atp (w->face_cachels, i);
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257 if (cachel->merged_faces)
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258 {
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259 Dynarr_free (cachel->merged_faces);
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260 cachel->merged_faces = 0;
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261 }
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262 }
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263 Dynarr_free (w->face_cachels);
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264 w->face_cachels = 0;
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265 }
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266
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267 if (w->glyph_cachels)
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268 {
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269 Dynarr_free (w->glyph_cachels);
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270 w->glyph_cachels = 0;
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271 }
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272 }
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273
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274 #define INIT_DISP_VARIABLE(field, initialization) \
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275 p->field[CURRENT_DISP] = initialization; \
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276 p->field[DESIRED_DISP] = initialization; \
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277 p->field[CMOTION_DISP] = initialization;
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278
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279 /* We have an implicit assertion that the first two elements (default
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280 and modeline faces) are always present in the face_element_cache.
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281 Normally redisplay ensures this. However, it is possible for a
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282 window to get created and functions which reference these values
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283 called before redisplay works with the window for the first time.
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284 All callers of allocate_window should therefore call
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285 reset_face_cachels on the created window. We can't do it
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286 here because the window must have its frame pointer set or
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287 reset_face_cachels will fail. */
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288 Lisp_Object
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289 allocate_window (void)
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290 {
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291 Lisp_Object val = Qnil;
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292 struct window *p = alloc_lcrecord (sizeof (struct window),
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293 lrecord_window);
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294
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295 zero_lcrecord (p);
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296 XSETWINDOW (val, p);
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297
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298 p->dead = 0;
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299 p->frame = Qnil;
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300 p->mini_p = Qnil;
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301 p->next = Qnil;
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302 p->prev = Qnil;
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303 p->hchild = Qnil;
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304 p->vchild = Qnil;
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305 p->parent = Qnil;
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306 p->buffer = Qnil;
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307 INIT_DISP_VARIABLE (start, Fmake_marker ());
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308 INIT_DISP_VARIABLE (pointm, Fmake_marker ());
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309 p->sb_point = Fmake_marker ();
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310 p->use_time = Qzero;
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311 INIT_DISP_VARIABLE (last_modified, Qzero);
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312 INIT_DISP_VARIABLE (last_point, Fmake_marker ());
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313 INIT_DISP_VARIABLE (last_start, Fmake_marker ());
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314 INIT_DISP_VARIABLE (last_facechange, Qzero);
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315 p->face_cachels = Dynarr_new (struct face_cachel);
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316 p->glyph_cachels = Dynarr_new (struct glyph_cachel);
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317 p->line_start_cache = Dynarr_new (struct line_start_cache);
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318 p->line_cache_last_updated = Qzero;
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319 INIT_DISP_VARIABLE (last_point_x, 0);
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320 INIT_DISP_VARIABLE (last_point_y, 0);
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321 INIT_DISP_VARIABLE (window_end_pos, 0);
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322 p->redisplay_end_trigger = Qnil;
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323 /* cached specifier values: will get set properly later */
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324 p->display_table = Qnil;
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325 p->has_modeline_p = Qnil;
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326 p->modeline_shadow_thickness = Qnil;
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327 #ifdef HAVE_SCROLLBARS
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328 p->scrollbar_width = Qnil;
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329 p->scrollbar_height = Qnil;
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330 #endif
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331 p->left_margin_width = Qnil;
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332 p->right_margin_width = Qnil;
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333 #ifdef HAVE_TOOLBARS
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334 p->toolbar_size[0] = Qnil;
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335 p->toolbar_size[1] = Qnil;
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336 p->toolbar_size[2] = Qnil;
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337 p->toolbar_size[3] = Qnil;
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338 #endif
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339 p->minimum_line_ascent = Qnil;
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340 p->minimum_line_descent = Qnil;
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341 p->use_left_overflow = Qnil;
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342 p->use_right_overflow = Qnil;
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343 #ifdef HAVE_MENUBARS
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344 p->menubar_visible_p = Qnil;
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345 #endif
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346 #ifdef HAVE_TOOLBARS
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347 p->toolbar_buttons_captioned_p = Qnil;
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348 #endif
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349 p->text_cursor_visible_p = Qnil;
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350 /* end cached specifier values. */
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351
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352 p->dedicated = Qnil;
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353 p->windows_changed = 1;
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354 p->shadow_thickness_changed = 1;
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355
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356 return (val);
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357 }
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358 #undef INIT_DISP_VARIABLE
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359
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360 /*
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361 * The redisplay structures used to be stored with each window. While
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362 * they are logically something associated with frames they can't be
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363 * stored there with a redisplay which handles variable height lines.
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364 * Lines in horizontally split windows might not line up. So they get
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365 * stored with the windows.
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366 *
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367 * The problem with this is window configurations. When restoring a
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368 * window configuration it now becomes problematic to do an
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369 * incremental redisplay. The solution is to store the redisplay
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370 * structures with the frame as they should be but laid out in the
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371 * same manner as the window structure. Thus is born the window
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372 * mirror.
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373 *
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374 * It also becomes a convenient place to stick scrollbar instances
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375 * since they extrapolate out to having the same problem described for
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376 * the display structures.
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377 */
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378
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379 /* Create a new mindow mirror structure and associated redisplay
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380 structs. */
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381 static struct window_mirror *
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382 new_window_mirror (struct frame *f)
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383 {
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|
384 struct window_mirror *t;
|
|
|
385
|
|
|
386 t = (struct window_mirror *)
|
|
|
387 xmalloc (sizeof (struct window_mirror));
|
|
|
388 memset (t, 0, sizeof (struct window_mirror));
|
|
|
389
|
|
|
390 t->frame = f;
|
|
|
391
|
|
|
392 t->current_display_lines = Dynarr_new (struct display_line);
|
|
|
393 t->desired_display_lines = Dynarr_new (struct display_line);
|
|
|
394 t->buffer = NULL;
|
|
|
395
|
|
|
396 #ifdef HAVE_SCROLLBARS
|
|
|
397 t->scrollbar_vertical_instance = NULL;
|
|
|
398 t->scrollbar_horizontal_instance = NULL;
|
|
|
399 #endif
|
|
|
400
|
|
|
401 return t;
|
|
|
402 }
|
|
|
403
|
|
|
404 /* Synchronize the mirror structure with a given window structure.
|
|
|
405 This is normally called from update_frame_window_mirror with a
|
|
|
406 starting window of f->root_window. */
|
|
|
407 static struct window_mirror *
|
|
|
408 update_mirror_internal (Lisp_Object win, struct window_mirror *mir)
|
|
|
409 {
|
|
|
410 if (NILP (win))
|
|
|
411 {
|
|
|
412 if (mir)
|
|
|
413 {
|
|
|
414 free_window_mirror (mir);
|
|
|
415 mir = 0;
|
|
|
416 }
|
|
|
417 return mir;
|
|
|
418 }
|
|
|
419 else
|
|
|
420 if (!mir)
|
|
|
421 mir = new_window_mirror (XFRAME (XWINDOW (win)->frame));
|
|
|
422
|
|
|
423 mir->next = update_mirror_internal (XWINDOW (win)->next, mir->next);
|
|
|
424 mir->hchild = update_mirror_internal (XWINDOW (win)->hchild, mir->hchild);
|
|
|
425 mir->vchild = update_mirror_internal (XWINDOW (win)->vchild, mir->vchild);
|
|
|
426
|
|
|
427 /*
|
|
|
428 * If the redisplay structs are not empty and the mirror has
|
|
|
429 * children, then this mirror structure was formerly being used for
|
|
|
430 * display but is no longer. Reset its current display structs so
|
|
|
431 * that redisplay doesn't accidentally think they are accurate if it
|
|
|
432 * is later used for display purposes once again. Also, mark the
|
|
|
433 * scrollbar instance as not active.
|
|
|
434 */
|
|
|
435 if (mir->vchild || mir->hchild)
|
|
|
436 {
|
|
|
437 /* The redisplay structures are big. Leaving them around in
|
|
|
438 non-leaf windows can add up to a lot of wasted space. So
|
|
|
439 don't do it. */
|
|
|
440 free_display_structs (mir);
|
|
|
441 mir->current_display_lines = Dynarr_new (struct display_line);
|
|
|
442 mir->desired_display_lines = Dynarr_new (struct display_line);
|
|
|
443
|
|
|
444 #ifdef HAVE_SCROLLBARS
|
|
|
445 update_window_scrollbars (XWINDOW (win), mir, 0, 0);
|
|
|
446 #endif
|
|
|
447 mir->buffer = NULL;
|
|
|
448 }
|
|
|
449
|
|
|
450 return mir;
|
|
|
451 }
|
|
|
452
|
|
|
453 /* Given a window mirror, determine which real window it contains the
|
|
|
454 redisplay structures for. */
|
|
|
455 static Lisp_Object
|
|
|
456 real_window_internal (Lisp_Object win, struct window_mirror *rmir,
|
|
|
457 struct window_mirror *mir)
|
|
|
458 {
|
|
|
459 Lisp_Object retval;
|
|
|
460
|
|
|
461 for (; !NILP (win) && rmir ; win = XWINDOW (win)->next, rmir = rmir->next)
|
|
|
462 {
|
|
|
463 if (mir == rmir)
|
|
|
464 return win;
|
|
|
465 if (!NILP (XWINDOW (win)->vchild))
|
|
|
466 {
|
|
|
467 retval = real_window_internal (XWINDOW (win)->vchild, rmir->vchild,
|
|
|
468 mir);
|
|
|
469 if (!NILP (retval))
|
|
|
470 return retval;
|
|
|
471 }
|
|
|
472 if (!NILP (XWINDOW (win)->hchild))
|
|
|
473 {
|
|
|
474 retval = real_window_internal (XWINDOW (win)->hchild, rmir->hchild,
|
|
|
475 mir);
|
|
|
476 if (!NILP (retval))
|
|
|
477 return retval;
|
|
|
478 }
|
|
|
479 }
|
|
|
480
|
|
|
481 return Qnil;
|
|
|
482 }
|
|
|
483
|
|
|
484 /* Given a real window, find the mirror structure which contains its
|
|
|
485 redisplay structures. */
|
|
|
486 static struct window_mirror *
|
|
|
487 find_window_mirror_internal (Lisp_Object win, struct window_mirror *rmir,
|
|
|
488 struct window *w)
|
|
|
489 {
|
|
|
490 struct window_mirror *retval;
|
|
|
491
|
|
|
492 for (; !NILP (win); win = XWINDOW (win)->next, rmir = rmir->next)
|
|
|
493 {
|
|
|
494 if (w == XWINDOW (win))
|
|
|
495 return rmir;
|
|
|
496 if (!NILP (XWINDOW (win)->vchild) &&
|
|
|
497 (retval = find_window_mirror_internal (XWINDOW (win)->vchild,
|
|
|
498 rmir->vchild, w)))
|
|
|
499 return retval;
|
|
|
500 if (!NILP (XWINDOW (win)->hchild) &&
|
|
|
501 (retval = find_window_mirror_internal (XWINDOW (win)->hchild,
|
|
|
502 rmir->hchild, w)))
|
|
|
503 return retval;
|
|
|
504 }
|
|
|
505
|
|
|
506 return 0;
|
|
|
507 }
|
|
|
508
|
|
|
509 /* Update the mirror structure for the given frame. */
|
|
|
510 void
|
|
|
511 update_frame_window_mirror (struct frame *f)
|
|
|
512 {
|
|
|
513 f->root_mirror = update_mirror_internal (f->root_window, f->root_mirror);
|
|
|
514 f->mirror_dirty = 0;
|
|
|
515 }
|
|
|
516
|
|
|
517 /* Free a given mirror structure along with all of its children as
|
|
|
518 well as their associated display structures. */
|
|
|
519 void
|
|
|
520 free_window_mirror (struct window_mirror *mir)
|
|
|
521 {
|
|
|
522 struct window_mirror *p;
|
|
|
523
|
|
|
524 p = mir;
|
|
|
525 while (mir)
|
|
|
526 {
|
|
|
527 if (mir->hchild) free_window_mirror (mir->hchild);
|
|
|
528 if (mir->vchild) free_window_mirror (mir->vchild);
|
|
|
529 #ifdef HAVE_SCROLLBARS
|
|
|
530 release_window_mirror_scrollbars (mir);
|
|
|
531 #endif
|
|
|
532 free_display_structs (mir);
|
|
|
533 mir = mir->next;
|
|
|
534 xfree (p);
|
|
|
535 p = mir;
|
|
|
536 }
|
|
|
537 }
|
|
|
538
|
|
|
539 /* Given a mirror structure, return the window it mirrors. Calls
|
|
|
540 real_window_internal to do most of the work. */
|
|
|
541 Lisp_Object
|
|
|
542 real_window (struct window_mirror *mir, int no_abort)
|
|
|
543 {
|
|
|
544 Lisp_Object retval;
|
|
|
545
|
|
|
546 retval = real_window_internal (mir->frame->root_window,
|
|
|
547 mir->frame->root_mirror, mir);
|
|
|
548
|
|
|
549 if (NILP (retval) && !no_abort)
|
|
|
550 abort ();
|
|
|
551
|
|
|
552 return retval;
|
|
|
553 }
|
|
|
554
|
|
|
555 /* Given a real window, return its mirror structure. Calls
|
|
|
556 find_window_mirror_internal to do all of the work. */
|
|
|
557 struct window_mirror *
|
|
|
558 find_window_mirror (struct window *w)
|
|
|
559 {
|
|
|
560 struct frame *f = XFRAME (w->frame);
|
|
|
561 if (f->mirror_dirty)
|
|
|
562 update_frame_window_mirror (f);
|
|
|
563 return find_window_mirror_internal (f->root_window, f->root_mirror, w);
|
|
|
564 }
|
|
|
565
|
|
|
566 /*****************************************************************************
|
|
|
567 find_window_by_pixel_pos
|
|
|
568
|
|
|
569 Given a pixel position relative to a frame, find the window at that
|
|
|
570 position.
|
|
|
571 ****************************************************************************/
|
|
|
572 struct window *
|
|
|
573 find_window_by_pixel_pos (unsigned int pix_x, unsigned int pix_y,
|
|
|
574 Lisp_Object win)
|
|
|
575 {
|
|
|
576 struct window *w;
|
|
|
577
|
|
|
578 if (NILP (win))
|
|
|
579 return 0;
|
|
|
580
|
|
|
581 for (; !NILP (win); win = XWINDOW (win)->next)
|
|
|
582 {
|
|
|
583 if (!NILP (XWINDOW (win)->vchild) &&
|
|
|
584 (w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->vchild)))
|
|
|
585 return w;
|
|
|
586 if (!NILP (XWINDOW (win)->hchild) &&
|
|
|
587 (w = find_window_by_pixel_pos (pix_x, pix_y, XWINDOW (win)->hchild)))
|
|
|
588 return w;
|
|
|
589 w = XWINDOW (win);
|
|
|
590 if (pix_x >= WINDOW_LEFT (w)
|
|
|
591 && pix_x <= WINDOW_RIGHT (w)
|
|
|
592 && pix_y >= WINDOW_TOP (w)
|
|
|
593 && pix_y <= WINDOW_BOTTOM (w))
|
|
|
594 return w;
|
|
|
595 }
|
|
|
596 return 0;
|
|
|
597 }
|
|
|
598
|
|
|
599 /* Return a pointer to the display structures for the given window. */
|
|
|
600 display_line_dynarr *
|
|
|
601 window_display_lines (struct window *w, int which)
|
|
|
602 {
|
|
|
603 struct window_mirror *t;
|
|
|
604
|
|
|
605 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
606 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
607 t = find_window_mirror (w);
|
|
|
608 if (!t)
|
|
|
609 abort ();
|
|
|
610
|
|
|
611 if (which == CURRENT_DISP)
|
|
|
612 return t->current_display_lines;
|
|
|
613 else if (which == DESIRED_DISP)
|
|
|
614 return t->desired_display_lines;
|
|
|
615 else if (which == CMOTION_DISP)
|
|
|
616 /* The CMOTION_DISP display lines are global. */
|
|
|
617 return cmotion_display_lines;
|
|
|
618 else
|
|
|
619 abort ();
|
|
|
620
|
|
|
621 return 0; /* shut up compiler */
|
|
|
622 }
|
|
|
623
|
|
|
624 struct buffer *
|
|
|
625 window_display_buffer (struct window *w)
|
|
|
626 {
|
|
|
627 struct window_mirror *t;
|
|
|
628
|
|
|
629 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
630 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
631 t = find_window_mirror (w);
|
|
|
632 if (!t)
|
|
|
633 abort ();
|
|
|
634
|
|
|
635 return t->buffer;
|
|
|
636 }
|
|
|
637
|
|
|
638 void
|
|
|
639 set_window_display_buffer (struct window *w, struct buffer *b)
|
|
|
640 {
|
|
|
641 struct window_mirror *t;
|
|
|
642
|
|
|
643 if (XFRAME (w->frame)->mirror_dirty)
|
|
|
644 update_frame_window_mirror (XFRAME (w->frame));
|
|
|
645 t = find_window_mirror (w);
|
|
|
646 if (!t)
|
|
|
647 abort ();
|
|
|
648
|
|
|
649 t->buffer = b;
|
|
|
650 }
|
|
|
651
|
|
|
652
|
|
|
653 /* Determining a windows position based solely on its pixel
|
|
|
654 positioning doesn't work. Instead, we do it the intelligent way,
|
|
|
655 by checking its positioning in the window hierarchy. */
|
|
|
656 int
|
|
|
657 window_is_leftmost (struct window *w)
|
|
|
658 {
|
|
|
659 Lisp_Object parent, current_ancestor, window;
|
|
|
660
|
|
|
661 XSETWINDOW (window, w);
|
|
|
662
|
|
|
663 parent = XWINDOW (window)->parent;
|
|
|
664 current_ancestor = window;
|
|
|
665
|
|
|
666 while (!NILP (parent))
|
|
|
667 {
|
|
|
668 if (!NILP (XWINDOW (parent)->hchild) &&
|
|
|
669 !EQ (XWINDOW (parent)->hchild, current_ancestor))
|
|
|
670 return 0;
|
|
|
671
|
|
|
672 current_ancestor = parent;
|
|
|
673 parent = XWINDOW (parent)->parent;
|
|
|
674 }
|
|
|
675
|
|
|
676 return 1;
|
|
|
677 }
|
|
|
678
|
|
|
679 int
|
|
|
680 window_is_rightmost (struct window *w)
|
|
|
681 {
|
|
|
682 Lisp_Object parent, current_ancestor, window;
|
|
|
683
|
|
|
684 XSETWINDOW (window, w);
|
|
|
685
|
|
|
686 parent = XWINDOW (window)->parent;
|
|
|
687 current_ancestor = window;
|
|
|
688
|
|
|
689 while (!NILP (parent))
|
|
|
690 {
|
|
|
691 if (!NILP (XWINDOW (parent)->hchild)
|
|
|
692 && !NILP (XWINDOW (current_ancestor)->next))
|
|
|
693 return 0;
|
|
|
694
|
|
|
695 current_ancestor = parent;
|
|
|
696 parent = XWINDOW (parent)->parent;
|
|
|
697 }
|
|
|
698
|
|
|
699 return 1;
|
|
|
700 }
|
|
|
701
|
|
|
702 static int
|
|
|
703 window_full_width_p (struct window *w)
|
|
|
704 {
|
|
|
705 return window_is_leftmost (w) && window_is_rightmost (w);
|
|
|
706 }
|
|
|
707
|
|
|
708 static int
|
|
|
709 window_is_highest (struct window *w)
|
|
|
710 {
|
|
|
711 Lisp_Object parent, current_ancestor, window;
|
|
|
712
|
|
|
713 XSETWINDOW (window, w);
|
|
|
714
|
|
|
715 parent = XWINDOW (window)->parent;
|
|
|
716 current_ancestor = window;
|
|
|
717
|
|
|
718 while (!NILP (parent))
|
|
|
719 {
|
|
|
720 if (!NILP (XWINDOW (parent)->vchild) &&
|
|
|
721 !EQ (XWINDOW (parent)->vchild, current_ancestor))
|
|
|
722 return 0;
|
|
|
723
|
|
|
724 current_ancestor = parent;
|
|
|
725 parent = XWINDOW (parent)->parent;
|
|
|
726 }
|
|
|
727
|
|
|
728 /* This is really to catch the minibuffer but we make it generic in
|
|
|
729 case we ever change things around to let the minibuffer be on top. */
|
|
|
730 if (NILP (XWINDOW (current_ancestor)->prev))
|
|
|
731 return 1;
|
|
|
732 else
|
|
|
733 return 0;
|
|
|
734 }
|
|
|
735
|
|
|
736 static int
|
|
|
737 window_is_lowest (struct window *w)
|
|
|
738 {
|
|
|
739 Lisp_Object parent, current_ancestor, window;
|
|
|
740
|
|
|
741 XSETWINDOW (window, w);
|
|
|
742
|
|
|
743 parent = XWINDOW (window)->parent;
|
|
|
744 current_ancestor = window;
|
|
|
745
|
|
|
746 while (!NILP (parent))
|
|
|
747 {
|
|
|
748 if (!NILP (XWINDOW (parent)->vchild)
|
|
|
749 && !NILP (XWINDOW (current_ancestor)->next))
|
|
|
750 return 0;
|
|
|
751
|
|
|
752 current_ancestor = parent;
|
|
|
753 parent = XWINDOW (parent)->parent;
|
|
|
754 }
|
|
|
755
|
|
|
756 return 1;
|
|
|
757 }
|
|
|
758
|
|
|
759 #if 0 /* not currently used */
|
|
|
760
|
|
|
761 static int
|
|
|
762 window_full_height_p (struct window *w)
|
|
|
763 {
|
|
|
764 return window_is_highest (w) && window_is_lowest (w);
|
|
|
765 }
|
|
|
766
|
|
|
767 #endif
|
|
|
768
|
|
|
769 int
|
|
|
770 window_truncation_on (struct window *w)
|
|
|
771 {
|
|
|
772 /* Horizontally scrolled windows are truncated. */
|
|
|
773 if (w->hscroll)
|
|
|
774 return 1;
|
|
|
775
|
|
|
776 /* If truncate_partial_width_windows is true and the window is not
|
|
|
777 the full width of the frame it is truncated. */
|
|
|
778 if (truncate_partial_width_windows
|
|
|
779 && !(window_is_leftmost (w) && window_is_rightmost (w)))
|
|
|
780 return 1;
|
|
|
781
|
|
|
782 /* If the window's buffer's value of truncate_lines is non-nil, then
|
|
|
783 the window is truncated. */
|
|
|
784 if (!NILP (XBUFFER (w->buffer)->truncate_lines))
|
|
|
785 return 1;
|
|
|
786
|
|
|
787 return 0;
|
|
|
788 }
|
|
|
789
|
|
|
790 int
|
|
|
791 window_needs_vertical_divider (struct window *w)
|
|
|
792 {
|
|
|
793 #ifdef HAVE_SCROLLBARS
|
|
|
794 struct frame *f = XFRAME (w->frame);
|
|
|
795
|
|
|
796 if (!window_scrollbar_width (w))
|
|
|
797 {
|
|
|
798 if (f->scrollbar_on_left)
|
|
|
799 return (!window_is_leftmost (w));
|
|
|
800 else
|
|
|
801 return (!window_is_rightmost (w));
|
|
|
802 }
|
|
|
803 else
|
|
|
804 return 0;
|
|
|
805 #else
|
|
|
806 return (!window_is_leftmost (w));
|
|
|
807 #endif
|
|
|
808 }
|
|
|
809
|
|
|
810 int
|
|
|
811 window_scrollbar_width (struct window *w)
|
|
|
812 {
|
|
|
813 #ifdef HAVE_SCROLLBARS
|
|
|
814 if (!WINDOW_WIN_P (w)
|
|
|
815 || MINI_WINDOW_P (w)
|
|
|
816 || NILP (w->buffer))
|
|
|
817 /* #### when does NILP (w->buffer) happen? */
|
|
|
818 return 0;
|
|
|
819
|
|
|
820 return XINT (w->scrollbar_width);
|
|
|
821 #else
|
|
|
822 return 0;
|
|
|
823 #endif
|
|
|
824 }
|
|
|
825
|
|
|
826 /* Horizontal scrollbars are only active on windows with truncation
|
|
|
827 turned on. */
|
|
|
828 int
|
|
|
829 window_scrollbar_height (struct window *w)
|
|
|
830 {
|
|
|
831 #ifdef HAVE_SCROLLBARS
|
|
|
832 if (!WINDOW_WIN_P (w)
|
|
|
833 || MINI_WINDOW_P (w)
|
|
|
834 || NILP (w->buffer)
|
|
|
835 || !window_truncation_on (w))
|
|
|
836 return 0;
|
|
|
837
|
|
|
838 return XINT (w->scrollbar_height);
|
|
|
839 #else
|
|
|
840 return 0;
|
|
|
841 #endif
|
|
|
842 }
|
|
|
843
|
|
|
844 int
|
|
|
845 window_modeline_height (struct window *w)
|
|
|
846 {
|
|
|
847 struct frame *f = XFRAME (w->frame);
|
|
|
848 int modeline_height;
|
|
|
849
|
|
|
850 if (MINI_WINDOW_P (w) || NILP (w->buffer))
|
|
|
851 {
|
|
|
852 modeline_height = 0;
|
|
|
853 }
|
|
|
854 else if (!WINDOW_HAS_MODELINE_P (w))
|
|
|
855 {
|
|
|
856 if (window_scrollbar_height (w))
|
|
|
857 modeline_height = 0;
|
|
|
858 else
|
|
|
859 {
|
|
|
860 modeline_height = FRAMEMETH (f, divider_height, ());
|
|
|
861
|
|
|
862 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
863 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
864 }
|
|
|
865 }
|
|
|
866 else
|
|
|
867 {
|
|
|
868 if (noninteractive)
|
|
|
869 modeline_height = 0;
|
|
|
870 else
|
|
|
871 {
|
|
|
872 display_line_dynarr *dla;
|
|
|
873
|
|
|
874 /* We don't force a regeneration of the modeline here.
|
|
|
875 Instead it is now a precondition that any function calling
|
|
|
876 this should make sure that one of these structures is
|
|
|
877 up-to-date. In practice this only affects two internal
|
|
|
878 redisplay functions, regenerate_window and
|
|
|
879 regenerate_window_point_center. */
|
|
|
880 /* We check DESIRED_DISP because if it is valid it is more
|
|
|
881 up-to-date than CURRENT_DISP. For calls to this outside
|
|
|
882 of redisplay it doesn't matter which structure we check
|
|
|
883 since there is a redisplay condition that these
|
|
|
884 structures be identical outside of redisplay. */
|
|
|
885 dla = window_display_lines (w, DESIRED_DISP);
|
|
|
886 if (dla && Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
887 modeline_height = (Dynarr_atp (dla, 0)->ascent +
|
|
|
888 Dynarr_atp (dla, 0)->descent);
|
|
|
889 else
|
|
|
890 {
|
|
|
891 dla = window_display_lines (w, CURRENT_DISP);
|
|
|
892 if (dla && Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
|
|
|
893 modeline_height = (Dynarr_atp (dla, 0)->ascent +
|
|
|
894 Dynarr_atp (dla, 0)->descent);
|
|
|
895 else
|
|
|
896 /* This should be an abort except I'm not yet 100%
|
|
|
897 confident that it won't ever get hit (though I
|
|
|
898 haven't been able to trigger it). It is extremely
|
|
|
899 unlikely to cause any noticable problem and even if
|
|
|
900 it does it will be a minor display glitch. */
|
|
|
901 /* #### Bullshit alert. It does get hit and it causes
|
|
|
902 noticeable glitches. real_current_modeline_height
|
|
|
903 is a kludge to fix this for 19.14. */
|
|
|
904 modeline_height = real_current_modeline_height (w);
|
|
|
905 }
|
|
|
906
|
|
|
907 if (!EQ (Qzero, w->modeline_shadow_thickness) && FRAME_WIN_P (f))
|
|
|
908 modeline_height += (2 * MODELINE_SHADOW_THICKNESS (w));
|
|
|
909 }
|
|
|
910 }
|
|
|
911
|
|
|
912 return modeline_height;
|
|
|
913 }
|
|
|
914
|
|
|
915 /*****************************************************************************
|
|
|
916 margin_width_internal
|
|
|
917
|
|
|
918 For a given window, return the width in pixels of the specified margin.
|
|
|
919 ****************************************************************************/
|
|
|
920 static int
|
|
|
921 margin_width_internal (struct window *w, int left_margin)
|
|
|
922 {
|
|
|
923 struct buffer *b;
|
|
|
924 int window_cwidth = window_char_width (w, 1);
|
|
|
925 int margin_cwidth;
|
|
|
926 int font_width;
|
|
|
927 Lisp_Object window = Qnil;
|
|
|
928
|
|
|
929 /* We might be getting called on a non-leaf. */
|
|
|
930 if (NILP (w->buffer))
|
|
|
931 return 0;
|
|
|
932
|
|
|
933 /* The minibuffer never has margins. */
|
|
|
934 if (MINI_WINDOW_P (w))
|
|
|
935 return 0;
|
|
|
936
|
|
|
937 XSETWINDOW (window, w);
|
|
|
938 b = XBUFFER (w->buffer);
|
|
|
939 margin_cwidth = (left_margin ? XINT (w->left_margin_width) :
|
|
|
940 XINT (w->right_margin_width));
|
|
|
941
|
|
|
942 default_face_height_and_width (window, 0, &font_width);
|
|
|
943
|
|
|
944 /* The left margin takes precedence over the right margin so we
|
|
|
945 subtract its width from the space available for the right
|
|
|
946 margin. */
|
|
|
947 if (!left_margin)
|
|
|
948 window_cwidth -= XINT (w->left_margin_width);
|
|
|
949
|
|
|
950 /* The margin cannot be wider than the window is. We allow the
|
|
|
951 value to be bigger since it is possible for the user to enlarge
|
|
|
952 the window such that the left margin value would no longer be too
|
|
|
953 big, but we won't return a value that is larger. */
|
|
|
954 if (margin_cwidth > window_cwidth)
|
|
|
955 margin_cwidth = window_cwidth;
|
|
|
956
|
|
|
957 /* At the user level the margin is always specified in characters.
|
|
|
958 Internally however it is manipulated in terms of pixels. */
|
|
|
959 return (margin_cwidth * font_width);
|
|
|
960 }
|
|
|
961
|
|
|
962 int
|
|
|
963 window_left_margin_width (struct window *w)
|
|
|
964 {
|
|
|
965 return margin_width_internal (w, 1);
|
|
|
966 }
|
|
|
967
|
|
|
968 int
|
|
|
969 window_right_margin_width (struct window *w)
|
|
|
970 {
|
|
|
971 return margin_width_internal (w, 0);
|
|
|
972 }
|
|
|
973
|
|
|
974 static int
|
|
|
975 window_top_toolbar_height (struct window *w)
|
|
|
976 {
|
|
|
977 /* #### implement this shit. */
|
|
|
978 return 0;
|
|
|
979 }
|
|
|
980
|
|
|
981 /* #### Currently used in scrollbar.c. Does it actually need to be? */
|
|
|
982 int
|
|
|
983 window_bottom_toolbar_height (struct window *w)
|
|
|
984 {
|
|
|
985 return 0;
|
|
|
986 }
|
|
|
987
|
|
|
988 static int
|
|
|
989 window_left_toolbar_width (struct window *w)
|
|
|
990 {
|
|
|
991 return 0;
|
|
|
992 }
|
|
|
993
|
|
|
994 static int
|
|
|
995 window_right_toolbar_width (struct window *w)
|
|
|
996 {
|
|
|
997 return 0;
|
|
|
998 }
|
|
|
999
|
|
|
1000 /*****************************************************************************
|
|
|
1001 Window Gutters
|
|
|
1002
|
|
|
1003 The gutters of a window are those areas in the boundary defined by
|
|
|
1004 w->pixel_top, w->pixel_left, w->pixel_height and w->pixel_width which
|
|
|
1005 do not contain text. Items which may be in the gutters include
|
|
|
1006 scrollbars, toolbars and modelines. The margin areas are not
|
|
|
1007 included. This is an exception made because redisplay special cases
|
|
|
1008 the handling of those areas in many places in such a way that
|
|
|
1009 including them in the gutter area would make life difficult.
|
|
|
1010
|
|
|
1011 The size functions refer to height for the bottom and top gutters and
|
|
|
1012 width for the left and right gutters. The starting position
|
|
|
1013 functions refer to the Y coord for bottom and top gutters and the X
|
|
|
1014 coord for left and right gutters. All starting positions are
|
|
|
1015 relative to the frame, not the window.
|
|
|
1016 ****************************************************************************/
|
|
|
1017
|
|
|
1018 int
|
|
|
1019 window_top_gutter_height (struct window *w)
|
|
|
1020 {
|
|
|
1021 int toolbar_height = window_top_toolbar_height (w);
|
|
|
1022
|
|
|
1023 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1024 return 0;
|
|
|
1025
|
|
|
1026 #ifdef HAVE_SCROLLBARS
|
|
|
1027 if (XFRAME (w->frame)->scrollbar_on_top)
|
|
|
1028 return window_scrollbar_height (w) + toolbar_height;
|
|
|
1029 else
|
|
|
1030 #endif
|
|
|
1031 return toolbar_height;
|
|
|
1032 }
|
|
|
1033
|
|
|
1034 int
|
|
|
1035 window_bottom_gutter_height (struct window *w)
|
|
|
1036 {
|
|
|
1037 int other_height;
|
|
|
1038
|
|
|
1039 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1040 return 0;
|
|
|
1041 else
|
|
|
1042 other_height =
|
|
|
1043 window_modeline_height (w) + window_bottom_toolbar_height (w);
|
|
|
1044
|
|
|
1045 #ifdef HAVE_SCROLLBARS
|
|
|
1046 if (!XFRAME (w->frame)->scrollbar_on_top)
|
|
|
1047 return window_scrollbar_height (w) + other_height;
|
|
|
1048 else
|
|
|
1049 #endif
|
|
|
1050 return other_height;
|
|
|
1051 }
|
|
|
1052
|
|
|
1053 static int
|
|
|
1054 window_left_right_gutter_width_internal (struct window *w, int modeline)
|
|
|
1055 {
|
|
|
1056 struct frame *f = XFRAME (w->frame);
|
|
|
1057 int scrollbar_width = window_scrollbar_width (w);
|
|
|
1058
|
|
|
1059 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1060 return 0;
|
|
|
1061
|
|
|
1062 if (!modeline)
|
|
|
1063 {
|
|
|
1064 if (scrollbar_width)
|
|
|
1065 return scrollbar_width;
|
|
|
1066 else if (window_needs_vertical_divider (w))
|
|
|
1067 return FRAMEMETH (f, divider_width, ());
|
|
|
1068 else
|
|
|
1069 return 0;
|
|
|
1070 }
|
|
|
1071 else
|
|
|
1072 {
|
|
|
1073 /* The shadows on the 3D modelines provide a visual break
|
|
|
1074 between the modelines of horizontally split windows. 2D
|
|
|
1075 modelines need some help, though. */
|
|
|
1076 if (!EQ (Qzero, w->modeline_shadow_thickness))
|
|
|
1077 return 0;
|
|
|
1078 else if (window_needs_vertical_divider (w))
|
|
|
1079 return FRAMEMETH (f, divider_width, ());
|
|
|
1080 else
|
|
|
1081 return 0;
|
|
|
1082 }
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 int
|
|
|
1086 window_left_gutter_width (struct window *w, int modeline)
|
|
|
1087 {
|
|
|
1088 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1089 return 0;
|
|
|
1090
|
|
|
1091 #ifdef HAVE_SCROLLBARS
|
|
|
1092 if (XFRAME (w->frame)->scrollbar_on_left)
|
|
|
1093 {
|
|
|
1094 #endif
|
|
|
1095 return (window_left_right_gutter_width_internal (w, modeline) +
|
|
|
1096 window_left_toolbar_width (w));
|
|
|
1097 #ifdef HAVE_SCROLLBARS
|
|
|
1098 }
|
|
|
1099 else
|
|
|
1100 return window_left_toolbar_width (w);
|
|
|
1101 #endif
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 int
|
|
|
1105 window_right_gutter_width (struct window *w, int modeline)
|
|
|
1106 {
|
|
|
1107 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
1108 return 0;
|
|
|
1109
|
|
|
1110 #ifdef HAVE_SCROLLBARS
|
|
|
1111 if (!XFRAME (w->frame)->scrollbar_on_left)
|
|
|
1112 {
|
|
|
1113 return (window_left_right_gutter_width_internal (w, modeline) +
|
|
|
1114 window_right_toolbar_width (w));
|
|
|
1115 }
|
|
|
1116 else
|
|
|
1117 #endif
|
|
|
1118 return window_right_toolbar_width (w);
|
|
|
1119 }
|
|
|
1120
|
|
|
1121
|
|
|
1122 DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0 /*
|
|
|
1123 Return t if OBJ is a window.
|
|
|
1124 */ )
|
|
|
1125 (obj)
|
|
|
1126 Lisp_Object obj;
|
|
|
1127 {
|
|
|
1128 return (WINDOWP (obj) ? Qt : Qnil);
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0 /*
|
|
|
1132 Return t if OBJ is a window which is currently visible.
|
|
|
1133 */ )
|
|
|
1134 (obj)
|
|
|
1135 Lisp_Object obj;
|
|
|
1136 {
|
|
|
1137 return (WINDOWP (obj) && WINDOW_LIVE_P (XWINDOW (obj)) ? Qt : Qnil);
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 1, 0 /*
|
|
|
1141 Return the window that the cursor now appears in and commands apply to.
|
|
|
1142 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return
|
|
|
1143 the selected window used by that frame. If CON-DEV-OR-FRAME is a device,
|
|
|
1144 then the selected frame on that device will be used. If CON-DEV-OR-FRAME
|
|
|
1145 is a console, the selected frame on that console's selected device will
|
|
|
1146 be used. Otherwise, the selected frame is used.
|
|
|
1147 */ )
|
|
|
1148 (con_dev_or_frame)
|
|
|
1149 Lisp_Object con_dev_or_frame;
|
|
|
1150 {
|
|
|
1151 struct frame *f;
|
|
|
1152
|
|
|
1153 if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil)))
|
|
|
1154 return Qnil; /* happens at startup */
|
|
|
1155
|
|
|
1156 f = decode_frame_or_selected (con_dev_or_frame);
|
|
|
1157 return FRAME_SELECTED_WINDOW (f);
|
|
|
1158 }
|
|
|
1159
|
|
|
1160 DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 1, 0 /*
|
|
|
1161 Return the window used now for minibuffers.
|
|
|
1162 If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return
|
|
|
1163 the minibuffer window used by that frame. If CON-DEV-OR-FRAME is a device,
|
|
|
1164 then the selected frame on that device will be used. If CON-DEV-OR-FRAME
|
|
|
1165 is a console, the selected frame on that console's selected device will
|
|
|
1166 be used. Otherwise, the selected frame is used.
|
|
|
1167 */ )
|
|
|
1168 (con_dev_or_frame)
|
|
|
1169 Lisp_Object con_dev_or_frame;
|
|
|
1170 {
|
|
|
1171 struct frame *f = decode_frame_or_selected (con_dev_or_frame);
|
|
|
1172
|
|
|
1173 return FRAME_MINIBUF_WINDOW (f);
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, Swindow_minibuffer_p, 1, 1, 0 /*
|
|
|
1177 Return non-nil if WINDOW is a minibuffer window.
|
|
|
1178 */ )
|
|
|
1179 (window)
|
|
|
1180 Lisp_Object window;
|
|
|
1181 {
|
|
|
1182 struct window *w = decode_window (window);
|
|
|
1183 return (MINI_WINDOW_P (w) ? Qt : Qnil);
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 DEFUN ("window-first-hchild", Fwindow_first_hchild, Swindow_first_hchild,
|
|
|
1187 1, 1, 0 /*
|
|
|
1188 Return the first horizontal child of WINDOW, or nil.
|
|
|
1189 */ )
|
|
|
1190 (window)
|
|
|
1191 Lisp_Object window;
|
|
|
1192 {
|
|
|
1193 struct window *w = decode_window (window);
|
|
|
1194 return w->hchild;
|
|
|
1195 }
|
|
|
1196
|
|
|
1197 DEFUN ("window-first-vchild", Fwindow_first_vchild, Swindow_first_vchild,
|
|
|
1198 1, 1, 0 /*
|
|
|
1199 Return the first vertical child of WINDOW, or nil.
|
|
|
1200 */ )
|
|
|
1201 (window)
|
|
|
1202 Lisp_Object window;
|
|
|
1203 {
|
|
|
1204 struct window *w = decode_window (window);
|
|
|
1205 return w->vchild;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208 DEFUN ("window-next-child", Fwindow_next_child, Swindow_next_child,
|
|
|
1209 1, 1, 0 /*
|
|
|
1210 Return the next window on the same level as WINDOW, or nil.
|
|
|
1211 */ )
|
|
|
1212 (window)
|
|
|
1213 Lisp_Object window;
|
|
|
1214 {
|
|
|
1215 struct window *w = decode_window (window);
|
|
|
1216 return w->next;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 DEFUN ("window-previous-child", Fwindow_previous_child, Swindow_previous_child,
|
|
|
1220 1, 1, 0 /*
|
|
|
1221 Return the previous window on the same level as WINDOW, or nil.
|
|
|
1222 */ )
|
|
|
1223 (window)
|
|
|
1224 Lisp_Object window;
|
|
|
1225 {
|
|
|
1226 struct window *w = decode_window (window);
|
|
|
1227 return w->prev;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 DEFUN ("window-parent", Fwindow_parent, Swindow_parent,
|
|
|
1231 1, 1, 0 /*
|
|
|
1232 Return the parent of WINDOW, or nil.
|
|
|
1233 */ )
|
|
|
1234 (window)
|
|
|
1235 Lisp_Object window;
|
|
|
1236 {
|
|
|
1237 struct window *w = decode_window (window);
|
|
|
1238 return w->parent;
|
|
|
1239 }
|
|
|
1240
|
|
|
1241 DEFUN ("window-lowest-p", Fwindow_lowest_p, Swindow_lowest_p, 1, 1, 0 /*
|
|
|
1242 Return non-nil if WINDOW is along the bottom of its frame.
|
|
|
1243 */ )
|
|
|
1244 (window)
|
|
|
1245 Lisp_Object window;
|
|
|
1246 {
|
|
|
1247 struct window *w = decode_window (window);
|
|
|
1248 return window_is_lowest (w) ? Qt : Qnil;
|
|
|
1249 }
|
|
|
1250
|
|
|
1251 DEFUN ("window-highest-p", Fwindow_highest_p, Swindow_highest_p, 1, 1, 0 /*
|
|
|
1252 Return non-nil if WINDOW is along the top of its frame.
|
|
|
1253 */ )
|
|
|
1254 (window)
|
|
|
1255 Lisp_Object window;
|
|
|
1256 {
|
|
|
1257 struct window *w = decode_window (window);
|
|
|
1258 return window_is_highest (w) ? Qt : Qnil;
|
|
|
1259 }
|
|
|
1260
|
|
|
1261 DEFUN ("window-leftmost-p", Fwindow_leftmost_p, Swindow_leftmost_p, 1, 1, 0 /*
|
|
|
1262 Return non-nil if WINDOW is along the left edge of its frame.
|
|
|
1263 */ )
|
|
|
1264 (window)
|
|
|
1265 Lisp_Object window;
|
|
|
1266 {
|
|
|
1267 struct window *w = decode_window (window);
|
|
|
1268 return window_is_leftmost (w) ? Qt : Qnil;
|
|
|
1269 }
|
|
|
1270
|
|
|
1271 DEFUN ("window-rightmost-p", Fwindow_rightmost_p, Swindow_rightmost_p,
|
|
|
1272 1, 1, 0 /*
|
|
|
1273 Return non-nil if WINDOW is along the right edge of its frame.
|
|
|
1274 */ )
|
|
|
1275 (window)
|
|
|
1276 Lisp_Object window;
|
|
|
1277 {
|
|
|
1278 struct window *w = decode_window (window);
|
|
|
1279 return window_is_rightmost (w) ? Qt : Qnil;
|
|
|
1280 }
|
|
|
1281
|
|
|
1282 DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p,
|
|
|
1283 Spos_visible_in_window_p, 0, 2, 0 /*
|
|
|
1284 Return t if position POS is currently on the frame in WINDOW.
|
|
|
1285 Returns nil if that position is scrolled vertically out of view.
|
|
|
1286 POS defaults to point in WINDOW's buffer; WINDOW, to the selected window.
|
|
|
1287 */ )
|
|
|
1288 (pos, window)
|
|
|
1289 Lisp_Object pos, window;
|
|
|
1290 {
|
|
|
1291 struct window *w;
|
|
|
1292 Bufpos top;
|
|
|
1293 Bufpos posint;
|
|
|
1294 struct buffer *buf;
|
|
|
1295
|
|
|
1296 w = decode_window (window);
|
|
|
1297 top = marker_position (w->start[CURRENT_DISP]);
|
|
|
1298
|
|
|
1299 buf = XBUFFER (w->buffer);
|
|
|
1300
|
|
|
1301 if (NILP (pos))
|
|
|
1302 posint = BUF_PT (buf);
|
|
|
1303 else
|
|
|
1304 {
|
|
|
1305 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1306 posint = XINT (pos);
|
|
|
1307 }
|
|
|
1308
|
|
|
1309 if (posint < top || posint > BUF_ZV (buf))
|
|
|
1310 return Qnil;
|
|
|
1311
|
|
|
1312 /* w->start can be out of range. If it is, do something reasonable. */
|
|
|
1313 if (top < BUF_BEGV (buf) || top > BUF_ZV (buf))
|
|
|
1314 return Qnil;
|
|
|
1315
|
|
|
1316 if (point_would_be_visible (w, top, posint))
|
|
|
1317 return Qt;
|
|
|
1318 else
|
|
|
1319 return Qnil;
|
|
|
1320 }
|
|
|
1321
|
|
|
1322
|
|
|
1323 struct window *
|
|
|
1324 decode_window (Lisp_Object window)
|
|
|
1325 {
|
|
|
1326 if (NILP (window))
|
|
|
1327 return XWINDOW (Fselected_window (Qnil));
|
|
|
1328
|
|
|
1329 CHECK_LIVE_WINDOW (window);
|
|
|
1330 return XWINDOW (window);
|
|
|
1331 }
|
|
|
1332
|
|
|
1333 DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0 /*
|
|
|
1334 Return the buffer that WINDOW is displaying.
|
|
|
1335 */ )
|
|
|
1336 (window)
|
|
|
1337 Lisp_Object window;
|
|
|
1338 {
|
|
|
1339 return decode_window (window)->buffer;
|
|
|
1340 }
|
|
|
1341
|
|
|
1342 DEFUN ("window-frame", Fwindow_frame, Swindow_frame, 0, 1, 0 /*
|
|
|
1343 Return the frame that window WINDOW is on.
|
|
|
1344 */ )
|
|
|
1345 (window)
|
|
|
1346 Lisp_Object window;
|
|
|
1347 {
|
|
|
1348 return decode_window (window)->frame;
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 DEFUN ("window-height", Fwindow_height, Swindow_height, 0, 1, 0 /*
|
|
|
1352 Return the number of default lines in WINDOW.
|
|
|
1353 This actually works by dividing the window's pixel height (including
|
|
|
1354 the modeline and horizontal scrollbar, if any) by the height of the
|
|
|
1355 default font; therefore, the number of displayed lines will probably
|
|
|
1356 be different.
|
|
|
1357 Use `window-height' to get consistent results in geometry calculations.
|
|
|
1358 Use `window-displayed-height' to get the actual number of lines
|
|
|
1359 currently displayed in a window.
|
|
|
1360 */ )
|
|
|
1361 (window)
|
|
|
1362 Lisp_Object window;
|
|
|
1363 {
|
|
|
1364 return make_int (window_char_height (decode_window (window), 1));
|
|
|
1365 }
|
|
|
1366
|
|
|
1367 DEFUN ("window-displayed-height", Fwindow_displayed_height,
|
|
|
1368 Swindow_displayed_height, 0, 1, 0 /*
|
|
|
1369 Return the number of lines currently displayed in WINDOW.
|
|
|
1370 This counts the actual number of lines displayed in WINDOW
|
|
|
1371 (as opposed to `window-height'). The modeline and horizontal
|
|
|
1372 scrollbar do not count as lines. If there is some blank space
|
|
|
1373 between the end of the buffer and the end of the window, this
|
|
|
1374 function pretends that there are lines of text in the default
|
|
|
1375 font there.
|
|
|
1376 */ )
|
|
|
1377 (window)
|
|
|
1378 Lisp_Object window;
|
|
|
1379 {
|
|
|
1380 return make_int (window_displayed_height (decode_window (window)));
|
|
|
1381 }
|
|
|
1382
|
|
|
1383 DEFUN ("window-pixel-height", Fwindow_pixel_height, Swindow_pixel_height,
|
|
|
1384 0, 1, 0 /*
|
|
|
1385 Return the height of WINDOW in pixels. Defaults to current window.
|
|
|
1386 This includes the window's modeline and horizontal scrollbar (if any).
|
|
|
1387 */ )
|
|
|
1388 (window)
|
|
|
1389 Lisp_Object window;
|
|
|
1390 {
|
|
|
1391 return (make_int (decode_window (window)->pixel_height));
|
|
|
1392 }
|
|
|
1393
|
|
|
1394 DEFUN ("window-width", Fwindow_width, Swindow_width, 0, 1, 0 /*
|
|
|
1395 Return the number of display columns in WINDOW.
|
|
|
1396 This is the width that is usable columns available for text in WINDOW.
|
|
|
1397 */ )
|
|
|
1398 (window)
|
|
|
1399 Lisp_Object window;
|
|
|
1400 {
|
|
|
1401 struct window *w = decode_window (window);
|
|
|
1402 return (make_int (window_char_width (w, 0)));
|
|
|
1403 }
|
|
|
1404
|
|
|
1405 DEFUN ("window-pixel-width", Fwindow_pixel_width, Swindow_pixel_width,
|
|
|
1406 0, 1, 0 /*
|
|
|
1407 Return the width of WINDOW in pixels. Defaults to current window.
|
|
|
1408 */ )
|
|
|
1409 (window)
|
|
|
1410 Lisp_Object window;
|
|
|
1411 {
|
|
|
1412 return (make_int (decode_window (window)->pixel_width));
|
|
|
1413 }
|
|
|
1414
|
|
|
1415 DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0 /*
|
|
|
1416 Return the number of columns by which WINDOW is scrolled from left margin.
|
|
|
1417 */ )
|
|
|
1418 (window)
|
|
|
1419 Lisp_Object window;
|
|
|
1420 {
|
|
|
1421 return (make_int (decode_window (window)->hscroll));
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0 /*
|
|
|
1425 Set number of columns WINDOW is scrolled from left margin to NCOL.
|
|
|
1426 NCOL should be zero or positive.
|
|
|
1427 */ )
|
|
|
1428 (window, ncol)
|
|
|
1429 Lisp_Object window, ncol;
|
|
|
1430 {
|
|
|
1431 struct window *w;
|
|
|
1432 int ncols;
|
|
|
1433
|
|
|
1434 CHECK_INT (ncol);
|
|
|
1435 ncols = XINT (ncol);
|
|
|
1436 if (ncols < 0) ncols = 0;
|
|
|
1437 w = decode_window (window);
|
|
|
1438 if (w->hscroll != ncols)
|
|
|
1439 MARK_CLIP_CHANGED; /* FSF marks differently but we aren't FSF. */
|
|
|
1440 w->hscroll = ncols;
|
|
|
1441 return ncol;
|
|
|
1442 }
|
|
|
1443
|
|
|
1444 #if 0 /* bogus RMS crock */
|
|
|
1445
|
|
|
1446 xxDEFUN ("window-redisplay-end-trigger", Fwindow_redisplay_end_trigger,
|
|
|
1447 Swindow_redisplay_end_trigger, 0, 1, 0 /*
|
|
|
1448 Return WINDOW's redisplay end trigger value.
|
|
|
1449 See `set-window-redisplay-end-trigger' for more information.
|
|
|
1450 */ )
|
|
|
1451 (window)
|
|
|
1452 Lisp_Object window;
|
|
|
1453 {
|
|
|
1454 return decode_window (window)->redisplay_end_trigger;
|
|
|
1455 }
|
|
|
1456
|
|
|
1457 xxDEFUN ("set-window-redisplay-end-trigger", Fset_window_redisplay_end_trigger,
|
|
|
1458 Sset_window_redisplay_end_trigger, 2, 2, 0 /*
|
|
|
1459 Set WINDOW's redisplay end trigger value to VALUE.
|
|
|
1460 VALUE should be a buffer position (typically a marker) or nil.
|
|
|
1461 If it is a buffer position, then if redisplay in WINDOW reaches a position
|
|
|
1462 beyond VALUE, the functions in `redisplay-end-trigger-functions' are called
|
|
|
1463 with two arguments: WINDOW, and the end trigger value.
|
|
|
1464 Afterwards the end-trigger value is reset to nil.
|
|
|
1465 */ )
|
|
|
1466 (window, value)
|
|
|
1467 register Lisp_Object window, value;
|
|
|
1468 {
|
|
|
1469 register struct window *w;
|
|
|
1470
|
|
|
1471 w = decode_window (window);
|
|
|
1472 w->redisplay_end_trigger = value;
|
|
|
1473 return value;
|
|
|
1474 }
|
|
|
1475
|
|
|
1476 #endif /* 0 */
|
|
|
1477
|
|
|
1478 DEFUN ("window-pixel-edges", Fwindow_pixel_edges, Swindow_pixel_edges,
|
|
|
1479 0, 1, 0 /*
|
|
|
1480 Return a list of the pixel edge coordinates of WINDOW.
|
|
|
1481 \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at top left corner of frame.
|
|
|
1482 The frame toolbars and menubars are considered to be outside of this area.
|
|
|
1483 */ )
|
|
|
1484 (window)
|
|
|
1485 Lisp_Object window;
|
|
|
1486 {
|
|
|
1487 struct window *w = decode_window (window);
|
|
|
1488 struct frame *f = XFRAME (w->frame);
|
|
|
1489 int left, top;
|
|
|
1490
|
|
|
1491 left = w->pixel_left - FRAME_LEFT_BORDER_END (f);
|
|
|
1492 top = w->pixel_top - FRAME_TOP_BORDER_END (f);
|
|
|
1493
|
|
|
1494 return list4 (make_int (left),
|
|
|
1495 make_int (top),
|
|
|
1496 make_int (left + w->pixel_width),
|
|
|
1497 make_int (top + w->pixel_height));
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0 /*
|
|
|
1501 Return current value of point in WINDOW.
|
|
|
1502 For a nonselected window, this is the value point would have
|
|
|
1503 if that window were selected.
|
|
|
1504
|
|
|
1505 Note that, when WINDOW is the selected window and its buffer
|
|
|
1506 is also currently selected, the value returned is the same as (point).
|
|
|
1507 It would be more strictly correct to return the `top-level' value
|
|
|
1508 of point, outside of any save-excursion forms.
|
|
|
1509 But that is hard to define.
|
|
|
1510 */ )
|
|
|
1511 (window)
|
|
|
1512 Lisp_Object window;
|
|
|
1513 {
|
|
|
1514 struct window *w = decode_window (window);
|
|
|
1515
|
|
|
1516 /* The special check for current buffer is necessary for this
|
|
|
1517 function to work as defined when called within an excursion. */
|
|
|
1518 if (w == XWINDOW (Fselected_window (XFRAME (w->frame)->device))
|
|
|
1519 && current_buffer == XBUFFER (w->buffer))
|
|
|
1520 return Fpoint (Qnil);
|
|
|
1521 return Fmarker_position (w->pointm[CURRENT_DISP]);
|
|
|
1522 }
|
|
|
1523
|
|
|
1524 DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0 /*
|
|
|
1525 Return position at which display currently starts in WINDOW.
|
|
|
1526 This is updated by redisplay or by calling `set-window-start'.
|
|
|
1527 */ )
|
|
|
1528 (window)
|
|
|
1529 Lisp_Object window;
|
|
|
1530 {
|
|
|
1531 return Fmarker_position (decode_window (window)->start[CURRENT_DISP]);
|
|
|
1532 }
|
|
|
1533
|
|
|
1534 DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 2, 0 /*
|
|
|
1535 Return position at which display currently ends in WINDOW.
|
|
|
1536 This is updated by redisplay, when it runs to completion.
|
|
|
1537 Simply changing the buffer text or setting `window-start'
|
|
|
1538 does not update this value.
|
|
|
1539 If GUARANTEE is non-nil, then the return value is guaranteed to be
|
|
|
1540 the value of window-end at the end of the next full redisplay assuming
|
|
|
1541 nothing else changes in the meantime. This function is potentially much
|
|
|
1542 slower with this flag set.
|
|
|
1543 */ )
|
|
|
1544 (window, guarantee)
|
|
|
1545 Lisp_Object window, guarantee;
|
|
|
1546 {
|
|
|
1547 Lisp_Object value;
|
|
|
1548 struct window *w = decode_window (window);
|
|
|
1549 Lisp_Object buf;
|
|
|
1550
|
|
|
1551 if (NILP (guarantee))
|
|
|
1552 {
|
|
|
1553 buf = w->buffer;
|
|
|
1554 CHECK_BUFFER (buf);
|
|
|
1555
|
|
|
1556 XSETINT (value, BUF_Z (XBUFFER (buf)) - w->window_end_pos[CURRENT_DISP]);
|
|
|
1557
|
|
|
1558 return value;
|
|
|
1559 }
|
|
|
1560 else
|
|
|
1561 {
|
|
|
1562 Bufpos startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
1563 return (make_int (end_of_last_line (w, startp)));
|
|
|
1564 }
|
|
|
1565 }
|
|
|
1566
|
|
|
1567 DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0 /*
|
|
|
1568 Make point value in WINDOW be at position POS in WINDOW's buffer.
|
|
|
1569 */ )
|
|
|
1570 (window, pos)
|
|
|
1571 Lisp_Object window, pos;
|
|
|
1572 {
|
|
|
1573 struct window *w = decode_window (window);
|
|
|
1574
|
|
|
1575 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1576 if (w == XWINDOW (Fselected_window (Qnil)))
|
|
|
1577 Fgoto_char (pos, Fcurrent_buffer ());
|
|
|
1578 else
|
|
|
1579 set_marker_restricted (w->pointm[CURRENT_DISP], pos, w->buffer);
|
|
|
1580
|
|
|
1581 MARK_POINT_CHANGED;
|
|
|
1582 return pos;
|
|
|
1583 }
|
|
|
1584
|
|
|
1585 DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0 /*
|
|
|
1586 Make display in WINDOW start at position POS in WINDOW's buffer.
|
|
|
1587 Optional third arg NOFORCE non-nil inhibits next redisplay
|
|
|
1588 from overriding motion of point in order to display at this exact start.
|
|
|
1589 */ )
|
|
|
1590 (window, pos, noforce)
|
|
|
1591 Lisp_Object window, pos, noforce;
|
|
|
1592 {
|
|
|
1593 struct window *w = decode_window (window);
|
|
|
1594
|
|
|
1595 CHECK_INT_COERCE_MARKER (pos);
|
|
|
1596 set_marker_restricted (w->start[CURRENT_DISP], pos, w->buffer);
|
|
|
1597 /* this is not right, but much easier than doing what is right. */
|
|
|
1598 w->start_at_line_beg = 0;
|
|
|
1599 if (NILP (noforce))
|
|
|
1600 w->force_start = 1;
|
|
|
1601 w->redo_modeline = 1;
|
|
|
1602 SET_LAST_MODIFIED (w, 0);
|
|
|
1603 SET_LAST_FACECHANGE (w);
|
|
|
1604
|
|
|
1605 MARK_WINDOWS_CHANGED (w);
|
|
|
1606
|
|
|
1607 return pos;
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p,
|
|
|
1611 1, 1, 0 /*
|
|
|
1612 Return WINDOW's dedicated object, usually t or nil.
|
|
|
1613 See also `set-window-dedicated-p'.
|
|
|
1614 */ )
|
|
|
1615 (window)
|
|
|
1616 Lisp_Object window;
|
|
|
1617 {
|
|
|
1618 return decode_window (window)->dedicated;
|
|
|
1619 }
|
|
|
1620
|
|
|
1621 DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p,
|
|
|
1622 Sset_window_dedicated_p, 2, 2, 0 /*
|
|
|
1623 Control whether WINDOW is dedicated to the buffer it displays.
|
|
|
1624 If it is dedicated, Emacs will not automatically change
|
|
|
1625 which buffer appears in it.
|
|
|
1626 The second argument is the new value for the dedication flag;
|
|
|
1627 non-nil means yes.
|
|
|
1628 */ )
|
|
|
1629 (window, arg)
|
|
|
1630 Lisp_Object window, arg;
|
|
|
1631 {
|
|
|
1632 register struct window *w = decode_window (window);
|
|
|
1633
|
|
|
1634 if (NILP (arg))
|
|
|
1635 w->dedicated = Qnil;
|
|
|
1636 else
|
|
|
1637 w->dedicated = Qt;
|
|
|
1638
|
|
|
1639 return w->dedicated;
|
|
|
1640 }
|
|
|
1641
|
|
|
1642 /* FSFmacs has window-display-table here. We have display table as a
|
|
|
1643 specifier. */
|
|
|
1644
|
|
|
1645
|
|
|
1646 /* Record info on buffer window w is displaying
|
|
|
1647 when it is about to cease to display that buffer. */
|
|
|
1648 static void
|
|
|
1649 unshow_buffer (struct window *w)
|
|
|
1650 {
|
|
|
1651 Lisp_Object buf = w->buffer;
|
|
|
1652
|
|
|
1653 if (XBUFFER (buf) != XMARKER (w->pointm[CURRENT_DISP])->buffer)
|
|
|
1654 abort ();
|
|
|
1655
|
|
|
1656 #ifdef ENERGIZE
|
|
|
1657 energize_buffer_hidden_hook (w);
|
|
|
1658 #endif
|
|
|
1659
|
|
|
1660 /* FSF disables this check, so I'll do it too. I hope it won't
|
|
|
1661 break things. --ben */
|
|
|
1662 #if 0
|
|
|
1663 if (w == XWINDOW (Fselected_window (Qnil))
|
|
|
1664 || ! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
|
1665 /* Do this except when the selected window's buffer
|
|
|
1666 is being removed from some other window. */
|
|
|
1667 #endif
|
|
|
1668 /* last_window_start records the start position that this buffer
|
|
|
1669 had in the last window to be disconnected from it.
|
|
|
1670 Now that this statement is unconditional,
|
|
|
1671 it is possible for the buffer to be displayed in the
|
|
|
1672 selected window, while last_window_start reflects another
|
|
|
1673 window which was recently showing the same buffer.
|
|
|
1674 Some people might say that might be a good thing. Let's see. */
|
|
|
1675 XBUFFER (buf)->last_window_start =
|
|
|
1676 marker_position (w->start[CURRENT_DISP]);
|
|
|
1677
|
|
|
1678 /* Point in the selected window's buffer
|
|
|
1679 is actually stored in that buffer, and the window's pointm isn't used.
|
|
|
1680 So don't clobber point in that buffer. */
|
|
|
1681 if (! EQ (buf, XWINDOW (Fselected_window (Qnil))->buffer))
|
|
|
1682 {
|
|
|
1683 struct buffer *b= XBUFFER (buf);
|
|
|
1684 BUF_SET_PT (b, bufpos_clip_to_bounds (BUF_BEGV (b),
|
|
|
1685 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
1686 BUF_ZV (b)));
|
|
|
1687 }
|
|
|
1688 }
|
|
|
1689
|
|
|
1690 /* Put REPLACEMENT into the window structure in place of OLD. */
|
|
|
1691 static void
|
|
|
1692 replace_window (Lisp_Object old, Lisp_Object replacement)
|
|
|
1693 {
|
|
|
1694 Lisp_Object tem;
|
|
|
1695 struct window *o = XWINDOW (old), *p = XWINDOW (replacement);
|
|
|
1696
|
|
|
1697 /* If OLD is its frame's root_window, then replacement is the new
|
|
|
1698 root_window for that frame. */
|
|
|
1699
|
|
|
1700 if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame))))
|
|
|
1701 FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement;
|
|
|
1702
|
|
|
1703 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
1704 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
1705 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
1706 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
1707
|
|
|
1708 p->next = tem = o->next;
|
|
|
1709 if (!NILP (tem))
|
|
|
1710 XWINDOW (tem)->prev = replacement;
|
|
|
1711
|
|
|
1712 p->prev = tem = o->prev;
|
|
|
1713 if (!NILP (tem))
|
|
|
1714 XWINDOW (tem)->next = replacement;
|
|
|
1715
|
|
|
1716 p->parent = tem = o->parent;
|
|
|
1717 if (!NILP (tem))
|
|
|
1718 {
|
|
|
1719 if (EQ (XWINDOW (tem)->vchild, old))
|
|
|
1720 XWINDOW (tem)->vchild = replacement;
|
|
|
1721 if (EQ (XWINDOW (tem)->hchild, old))
|
|
|
1722 XWINDOW (tem)->hchild = replacement;
|
|
|
1723 }
|
|
|
1724
|
|
|
1725 /* #### Here, if replacement is a vertical combination
|
|
|
1726 and so is its new parent, we should make replacement's
|
|
|
1727 children be children of that parent instead. */
|
|
|
1728 }
|
|
|
1729
|
|
|
1730 /* we're deleting W; set the structure of W to indicate this. */
|
|
|
1731
|
|
|
1732 static void
|
|
|
1733 mark_window_as_deleted (struct window *w)
|
|
|
1734 {
|
|
|
1735 /* In the loop
|
|
|
1736 (while t (split-window) (delete-window))
|
|
|
1737 we end up with a tree of deleted windows which are all connected
|
|
|
1738 through the `next' slot. This might not seem so bad, as they're
|
|
|
1739 deleted, and will presumably be GCed - but if even *one* of those
|
|
|
1740 windows is still being pointed to, by the user, or by a window
|
|
|
1741 configuration, then *all* of those windows stick around.
|
|
|
1742
|
|
|
1743 Since the window-configuration code doesn't need any of the
|
|
|
1744 pointers to other windows (they are all recreated from the
|
|
|
1745 window-config data), we set them all to nil so that we
|
|
|
1746 are able to collect more actual garbage.
|
|
|
1747 */
|
|
|
1748 w->next = Qnil;
|
|
|
1749 w->prev = Qnil;
|
|
|
1750 w->hchild = Qnil;
|
|
|
1751 w->vchild = Qnil;
|
|
|
1752 w->parent = Qnil;
|
|
|
1753
|
|
|
1754 w->dead = 1;
|
|
|
1755
|
|
|
1756 /* Free the extra data structures attached to windows immediately so
|
|
|
1757 they don't sit around consuming excess space. They will be
|
|
|
1758 reinitialized by the window-configuration code as necessary. */
|
|
|
1759 finalize_window ((void *) w, 0);
|
|
|
1760 }
|
|
|
1761
|
|
|
1762 DEFUN ("delete-window", Fdelete_window, Sdelete_window, 0, 2, "" /*
|
|
|
1763 Remove WINDOW from the display. Default is selected window.
|
|
|
1764 If window is the only one on the frame, the frame is destroyed.
|
|
|
1765 Normally, you cannot delete the last non-minibuffer-only frame (you must
|
|
|
1766 use `save-buffers-kill-emacs' or `kill-emacs'). However, if optional
|
|
|
1767 second argument FORCE is non-nil, you can delete the last frame. (This
|
|
|
1768 will automatically call `save-buffers-kill-emacs'.)
|
|
|
1769 */ )
|
|
|
1770 (window, force)
|
|
|
1771 Lisp_Object window, force;
|
|
|
1772 {
|
|
|
1773 /* This function can GC if this is the only window in the frame */
|
|
|
1774 struct window *w;
|
|
|
1775 Lisp_Object parent;
|
|
|
1776 struct window *par;
|
|
|
1777 Lisp_Object frame;
|
|
|
1778 struct frame *f;
|
|
|
1779 struct device *d;
|
|
|
1780
|
|
|
1781 /* Note: this function is called by other C code on non-leaf
|
|
|
1782 windows. */
|
|
|
1783
|
|
|
1784 /* Do the equivalent of decode_window() but don't error out on
|
|
|
1785 deleted window; it's OK to delete an already-deleted window. */
|
|
|
1786 if (NILP (window))
|
|
|
1787 window = Fselected_window (Qnil);
|
|
|
1788 else
|
|
|
1789 CHECK_WINDOW (window);
|
|
|
1790 w = XWINDOW (window);
|
|
|
1791
|
|
|
1792 /* It's okay to delete an already-deleted window. */
|
|
|
1793 if (! WINDOW_LIVE_P (w))
|
|
|
1794 return Qnil;
|
|
|
1795
|
|
|
1796 frame = WINDOW_FRAME (w);
|
|
|
1797 f = XFRAME (frame);
|
|
|
1798 d = XDEVICE (FRAME_DEVICE (f));
|
|
|
1799
|
|
|
1800 if (TOP_LEVEL_WINDOW_P (w))
|
|
|
1801 {
|
|
|
1802 if (NILP (memq_no_quit (frame, DEVICE_FRAME_LIST (d))))
|
|
|
1803 /* this frame isn't fully initialized yet; don't blow up. */
|
|
|
1804 return Qnil;
|
|
|
1805
|
|
|
1806 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
1807 error ("Attempt to delete the minibuffer window");
|
|
|
1808
|
|
|
1809 /* It has been suggested that it's a good thing for C-x 0 to have this
|
|
|
1810 behavior, but not such a good idea for #'delete-window to have it.
|
|
|
1811 Maybe C-x 0 should be bound to something else, or maybe frame
|
|
|
1812 deletion should only happen when this is called interactively.
|
|
|
1813 */
|
|
|
1814 delete_frame_internal (f, !NILP (force), 0, 0);
|
|
|
1815 return Qnil;
|
|
|
1816 }
|
|
|
1817
|
|
|
1818 /* At this point, we know the window has a parent. */
|
|
|
1819 parent = w->parent;
|
|
|
1820 par = XWINDOW (parent);
|
|
|
1821
|
|
|
1822 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
1823
|
|
|
1824 /* Are we trying to delete any frame's selected window?
|
|
|
1825 Note that we could be dealing with a non-leaf window
|
|
|
1826 where the selected window is one of our children.
|
|
|
1827 So, we check by scanning all the ancestors of the
|
|
|
1828 frame's selected window and comparing each one with
|
|
|
1829 WINDOW. */
|
|
|
1830 {
|
|
|
1831 Lisp_Object pwindow;
|
|
|
1832
|
|
|
1833 pwindow = FRAME_SELECTED_WINDOW (f);
|
|
|
1834
|
|
|
1835 while (!NILP (pwindow))
|
|
|
1836 {
|
|
|
1837 if (EQ (window, pwindow))
|
|
|
1838 break;
|
|
|
1839 pwindow = XWINDOW (pwindow)->parent;
|
|
|
1840 }
|
|
|
1841
|
|
|
1842 if (EQ (window, pwindow))
|
|
|
1843 {
|
|
|
1844 /* OK, we found it. */
|
|
|
1845 Lisp_Object alternative;
|
|
|
1846 alternative = Fnext_window (window, Qlambda, Qnil, Qnil);
|
|
|
1847
|
|
|
1848 /* If we're about to delete the selected window on the
|
|
|
1849 selected frame, then we should use Fselect_window to select
|
|
|
1850 the new window. On the other hand, if we're about to
|
|
|
1851 delete the selected window on any other frame, we shouldn't do
|
|
|
1852 anything but set the frame's selected_window slot. */
|
|
|
1853 if (EQ (frame, Fselected_frame (Qnil)))
|
|
|
1854 Fselect_window (alternative);
|
|
|
1855 else
|
|
|
1856 set_frame_selected_window (f, alternative);
|
|
|
1857 }
|
|
|
1858 }
|
|
|
1859
|
|
|
1860 /* w->buffer is nil in a non-leaf window; in this case,
|
|
|
1861 get rid of the markers we maintain that point into that buffer. */
|
|
|
1862 if (!NILP (w->buffer))
|
|
|
1863 {
|
|
|
1864 unshow_buffer (w);
|
|
|
1865 unchain_marker (w->pointm[CURRENT_DISP]);
|
|
|
1866 unchain_marker (w->pointm[DESIRED_DISP]);
|
|
|
1867 unchain_marker (w->pointm[CMOTION_DISP]);
|
|
|
1868 unchain_marker (w->start[CURRENT_DISP]);
|
|
|
1869 unchain_marker (w->start[DESIRED_DISP]);
|
|
|
1870 unchain_marker (w->start[CMOTION_DISP]);
|
|
|
1871 unchain_marker (w->sb_point);
|
|
|
1872 /* This breaks set-window-configuration if windows in the saved
|
|
|
1873 configuration get deleted and multiple frames are in use. */
|
|
|
1874 /* w->buffer = Qnil; */
|
|
|
1875 }
|
|
|
1876
|
|
|
1877 /* close up the hole in the sibling list */
|
|
|
1878 if (!NILP (w->next))
|
|
|
1879 XWINDOW (w->next)->prev = w->prev;
|
|
|
1880 if (!NILP (w->prev))
|
|
|
1881 XWINDOW (w->prev)->next = w->next;
|
|
|
1882 if (EQ (window, par->hchild))
|
|
|
1883 par->hchild = w->next;
|
|
|
1884 if (EQ (window, par->vchild))
|
|
|
1885 par->vchild = w->next;
|
|
|
1886
|
|
|
1887 /* Find one of our siblings to give our space to. */
|
|
|
1888 {
|
|
|
1889 Lisp_Object sib = w->prev;
|
|
|
1890 if (NILP (sib))
|
|
|
1891 {
|
|
|
1892 /* If w gives its space to its next sibling, that sibling needs
|
|
|
1893 to have its top/left side pulled back to where w's is.
|
|
|
1894 set_window_{height,width} will re-position the sibling's
|
|
|
1895 children. */
|
|
|
1896 sib = w->next;
|
|
|
1897 WINDOW_TOP (XWINDOW (sib)) = WINDOW_TOP (w);
|
|
|
1898 WINDOW_LEFT (XWINDOW (sib)) = WINDOW_LEFT (w);
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 /* Stretch that sibling. */
|
|
|
1902 if (!NILP (par->vchild))
|
|
|
1903 set_window_pixheight
|
|
|
1904 (sib, (WINDOW_HEIGHT (XWINDOW (sib)) + WINDOW_HEIGHT (w)), 1);
|
|
|
1905 if (!NILP (par->hchild))
|
|
|
1906 set_window_pixwidth
|
|
|
1907 (sib, (WINDOW_WIDTH (XWINDOW (sib)) + WINDOW_WIDTH (w)), 1);
|
|
|
1908 }
|
|
|
1909
|
|
|
1910 /* If parent now has only one child,
|
|
|
1911 put the child into the parent's place. */
|
|
|
1912 {
|
|
|
1913 Lisp_Object parchild = par->hchild;
|
|
|
1914 if (NILP (parchild))
|
|
|
1915 parchild = par->vchild;
|
|
|
1916 if (NILP (XWINDOW (parchild)->next))
|
|
|
1917 {
|
|
|
1918 replace_window (parent, parchild);
|
|
|
1919 mark_window_as_deleted (XWINDOW (parent));
|
|
|
1920 }
|
|
|
1921 }
|
|
|
1922
|
|
|
1923 /* Since we may be deleting combination windows, we must make sure that
|
|
|
1924 not only W but all its children have been marked as deleted. */
|
|
|
1925 if (!NILP (w->hchild))
|
|
|
1926 delete_all_subwindows (XWINDOW (w->hchild));
|
|
|
1927 else if (!NILP (w->vchild))
|
|
|
1928 delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
1929
|
|
|
1930 mark_window_as_deleted (w);
|
|
|
1931
|
|
|
1932 f->mirror_dirty = 1;
|
|
|
1933 return Qnil;
|
|
|
1934 }
|
|
|
1935
|
|
|
1936
|
|
|
1937 DEFUN ("next-window", Fnext_window, Snext_window, 0, 4, 0 /*
|
|
|
1938 Return next window after WINDOW in canonical ordering of windows.
|
|
|
1939 If omitted, WINDOW defaults to the selected window.
|
|
|
1940
|
|
|
1941 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
1942 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
1943 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
1944 minibuffer even if it is active.
|
|
|
1945
|
|
|
1946 Several frames may share a single minibuffer; if the minibuffer
|
|
|
1947 counts, all windows on all frames that share that minibuffer count
|
|
|
1948 too. Therefore, `next-window' can be used to iterate through the
|
|
|
1949 set of windows even when the minibuffer is on another frame. If the
|
|
|
1950 minibuffer does not count, only windows from WINDOW's frame count.
|
|
|
1951
|
|
|
1952 Optional third arg ALL-FRAMES t means include windows on all frames.
|
|
|
1953 ALL-FRAMES nil or omitted means cycle within the frames as specified
|
|
|
1954 above. ALL-FRAMES = `visible' means include windows on all visible frames.
|
|
|
1955 ALL-FRAMES = 0 means include windows on all visible and iconified frames.
|
|
|
1956 If ALL-FRAMES is a frame, restrict search to windows on that frame.
|
|
|
1957 Anything else means restrict to WINDOW's frame.
|
|
|
1958
|
|
|
1959 Optional fourth argument CONSOLE controls which consoles or devices the
|
|
|
1960 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
1961 on that console. If CONSOLE is a device, return windows only on that
|
|
|
1962 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
1963 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
1964 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
1965 on WINDOW's console. Otherwise, all windows are considered.
|
|
|
1966
|
|
|
1967 If you use consistent values for MINIBUF, ALL-FRAMES, and CONSOLE, you
|
|
|
1968 can use `next-window' to iterate through the entire cycle of acceptable
|
|
|
1969 windows, eventually ending up back at the window you started with.
|
|
|
1970 `previous-window' traverses the same cycle, in the reverse order.
|
|
|
1971 */ )
|
|
|
1972 (window, minibuf, all_frames, console)
|
|
|
1973 Lisp_Object window, minibuf, all_frames, console;
|
|
|
1974 {
|
|
|
1975 Lisp_Object tem;
|
|
|
1976 Lisp_Object start_window;
|
|
|
1977
|
|
|
1978 if (NILP (window))
|
|
|
1979 window = Fselected_window (Qnil);
|
|
|
1980 else
|
|
|
1981 CHECK_LIVE_WINDOW (window);
|
|
|
1982
|
|
|
1983 start_window = window;
|
|
|
1984
|
|
|
1985 /* minibuf == nil may or may not include minibuffers.
|
|
|
1986 Decide if it does. */
|
|
|
1987 if (NILP (minibuf))
|
|
|
1988 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
1989 else if (! EQ (minibuf, Qt))
|
|
|
1990 minibuf = Qlambda;
|
|
|
1991 /* Now minibuf can be t => count all minibuffer windows,
|
|
|
1992 lambda => count none of them,
|
|
|
1993 or a specific minibuffer window (the active one) to count. */
|
|
|
1994
|
|
|
1995 /* all_frames == nil doesn't specify which frames to include. */
|
|
|
1996 if (NILP (all_frames))
|
|
|
1997 all_frames = (! EQ (minibuf, Qlambda)
|
|
|
1998 ? (FRAME_MINIBUF_WINDOW
|
|
|
1999 (XFRAME
|
|
|
2000 (WINDOW_FRAME
|
|
|
2001 (XWINDOW (window)))))
|
|
|
2002 : Qnil);
|
|
|
2003 else if (EQ (all_frames, Qvisible))
|
|
|
2004 ;
|
|
|
2005 else if (ZEROP (all_frames))
|
|
|
2006 ;
|
|
|
2007 else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window)))
|
|
|
2008 /* If all_frames is a frame and window arg isn't on that frame, just
|
|
|
2009 return the first window on the frame. */
|
|
|
2010 return frame_first_window (XFRAME (all_frames));
|
|
|
2011 else if (! EQ (all_frames, Qt))
|
|
|
2012 all_frames = Qnil;
|
|
|
2013 /* Now all_frames is t meaning search all frames,
|
|
|
2014 nil meaning search just current frame,
|
|
|
2015 visible meaning search just visible frames,
|
|
|
2016 0 meaning search visible and iconified frames,
|
|
|
2017 or a window, meaning search the frame that window belongs to. */
|
|
|
2018
|
|
|
2019 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2020 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2021 do
|
|
|
2022 {
|
|
|
2023 /* Find a window that actually has a next one. This loop
|
|
|
2024 climbs up the tree. */
|
|
|
2025 while (tem = XWINDOW (window)->next, NILP (tem))
|
|
|
2026 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2027 window = tem;
|
|
|
2028 else /* window must be minibuffer window now */
|
|
|
2029 {
|
|
|
2030 /* We've reached the end of this frame.
|
|
|
2031 Which other frames are acceptable? */
|
|
|
2032 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2033
|
|
|
2034 if (! NILP (all_frames))
|
|
|
2035 {
|
|
|
2036 Lisp_Object tem1;
|
|
|
2037
|
|
|
2038 tem1 = tem;
|
|
|
2039 tem = next_frame (tem, all_frames, console);
|
|
|
2040 /* In the case where the minibuffer is active,
|
|
|
2041 and we include its frame as well as the selected one,
|
|
|
2042 next_frame may get stuck in that frame.
|
|
|
2043 If that happens, go back to the selected frame
|
|
|
2044 so we can complete the cycle. */
|
|
|
2045 if (EQ (tem, tem1))
|
|
|
2046 XSETFRAME (tem, selected_frame ());
|
|
|
2047 }
|
|
|
2048
|
|
|
2049 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2050 break;
|
|
|
2051 }
|
|
|
2052
|
|
|
2053 window = tem;
|
|
|
2054
|
|
|
2055 /* If we're in a combination window, find its first child and
|
|
|
2056 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2057 while (1)
|
|
|
2058 {
|
|
|
2059 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2060 window = XWINDOW (window)->hchild;
|
|
|
2061 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2062 window = XWINDOW (window)->vchild;
|
|
|
2063 else break;
|
|
|
2064 }
|
|
|
2065 }
|
|
|
2066 /* "acceptable" is the correct spelling. */
|
|
|
2067 /* Which windows are acceptable?
|
|
|
2068 Exit the loop and accept this window if
|
|
|
2069 this isn't a minibuffer window,
|
|
|
2070 or we're accepting all minibuffer windows,
|
|
|
2071 or this is the active minibuffer and we are accepting that one, or
|
|
|
2072 we've come all the way around and we're back at the original window. */
|
|
|
2073 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2074 && ! EQ (minibuf, Qt)
|
|
|
2075 && ! EQ (minibuf, window)
|
|
|
2076 && ! EQ (window, start_window));
|
|
|
2077
|
|
|
2078 return window;
|
|
|
2079 }
|
|
|
2080
|
|
|
2081 DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 4, 0 /*
|
|
|
2082 Return the window preceeding WINDOW in canonical ordering of windows.
|
|
|
2083 If omitted, WINDOW defaults to the selected window.
|
|
|
2084
|
|
|
2085 Optional second arg MINIBUF t means count the minibuffer window even
|
|
|
2086 if not active. MINIBUF nil or omitted means count the minibuffer iff
|
|
|
2087 it is active. MINIBUF neither t nor nil means not to count the
|
|
|
2088 minibuffer even if it is active.
|
|
|
2089
|
|
|
2090 Several frames may share a single minibuffer; if the minibuffer
|
|
|
2091 counts, all windows on all frames that share that minibuffer count
|
|
|
2092 too. Therefore, `previous-window' can be used to iterate through
|
|
|
2093 the set of windows even when the minibuffer is on another frame. If
|
|
|
2094 the minibuffer does not count, only windows from WINDOW's frame count
|
|
|
2095
|
|
|
2096 If optional third arg ALL-FRAMES t means include windows on all frames.
|
|
|
2097 ALL-FRAMES nil or omitted means cycle within the frames as specified
|
|
|
2098 above. ALL-FRAMES = `visible' means include windows on all visible frames.
|
|
|
2099 ALL-FRAMES = 0 means include windows on all visible and iconified frames.
|
|
|
2100 If ALL-FRAMES is a frame, restrict search to windows on that frame.
|
|
|
2101 Anything else means restrict to WINDOW's frame.
|
|
|
2102
|
|
|
2103 Optional fourth argument CONSOLE controls which consoles or devices the
|
|
|
2104 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2105 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2106 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2107 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2108 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2109 on WINDOW's console. Otherwise, all windows are considered.
|
|
|
2110
|
|
|
2111 If you use consistent values for MINIBUF, ALL-FRAMES, and CONSOLE, you
|
|
|
2112 can use `previous-window' to iterate through the entire cycle of acceptable
|
|
|
2113 windows, eventually ending up back at the window you started with.
|
|
|
2114 `next-window' traverses the same cycle, in the reverse order.
|
|
|
2115 */ )
|
|
|
2116 (window, minibuf, all_frames, console)
|
|
|
2117 Lisp_Object window, minibuf, all_frames, console;
|
|
|
2118 {
|
|
|
2119 Lisp_Object tem;
|
|
|
2120 Lisp_Object start_window;
|
|
|
2121
|
|
|
2122 if (NILP (window))
|
|
|
2123 window = Fselected_window (Qnil);
|
|
|
2124 else
|
|
|
2125 CHECK_LIVE_WINDOW (window);
|
|
|
2126
|
|
|
2127 start_window = window;
|
|
|
2128
|
|
|
2129 /* minibuf == nil may or may not include minibuffers.
|
|
|
2130 Decide if it does. */
|
|
|
2131 if (NILP (minibuf))
|
|
|
2132 minibuf = (minibuf_level ? minibuf_window : Qlambda);
|
|
|
2133 else if (! EQ (minibuf, Qt))
|
|
|
2134 minibuf = Qlambda;
|
|
|
2135 /* Now minibuf can be t => count all minibuffer windows,
|
|
|
2136 lambda => count none of them,
|
|
|
2137 or a specific minibuffer window (the active one) to count. */
|
|
|
2138
|
|
|
2139 /* all_frames == nil doesn't specify which frames to include.
|
|
|
2140 Decide which frames it includes. */
|
|
|
2141 if (NILP (all_frames))
|
|
|
2142 all_frames = (! EQ (minibuf, Qlambda)
|
|
|
2143 ? (FRAME_MINIBUF_WINDOW
|
|
|
2144 (XFRAME
|
|
|
2145 (WINDOW_FRAME
|
|
|
2146 (XWINDOW (window)))))
|
|
|
2147 : Qnil);
|
|
|
2148 else if (EQ (all_frames, Qvisible))
|
|
|
2149 ;
|
|
|
2150 else if (ZEROP (all_frames))
|
|
|
2151 ;
|
|
|
2152 else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window)))
|
|
|
2153 /* If all_frames is a frame and window arg isn't on that frame, just
|
|
|
2154 return the first window on the frame. */
|
|
|
2155 return frame_first_window (XFRAME (all_frames));
|
|
|
2156 else if (! EQ (all_frames, Qt))
|
|
|
2157 all_frames = Qnil;
|
|
|
2158 /* Now all_frames is t meaning search all frames,
|
|
|
2159 nil meaning search just current frame,
|
|
|
2160 visible meaning search just visible frames,
|
|
|
2161 0 meaning search visible and iconified frames,
|
|
|
2162 or a window, meaning search the frame that window belongs to. */
|
|
|
2163
|
|
|
2164 /* Do this loop at least once, to get the next window, and perhaps
|
|
|
2165 again, if we hit the minibuffer and that is not acceptable. */
|
|
|
2166 do
|
|
|
2167 {
|
|
|
2168 /* Find a window that actually has a next one. This loop
|
|
|
2169 climbs up the tree. */
|
|
|
2170 while (tem = XWINDOW (window)->prev, NILP (tem))
|
|
|
2171 if (tem = XWINDOW (window)->parent, !NILP (tem))
|
|
|
2172 window = tem;
|
|
|
2173 else /* window must be minibuffer window now */
|
|
|
2174 {
|
|
|
2175 /* We have found the top window on the frame.
|
|
|
2176 Which frames are acceptable? */
|
|
|
2177 tem = WINDOW_FRAME (XWINDOW (window));
|
|
|
2178
|
|
|
2179 if (! NILP (all_frames))
|
|
|
2180 /* It's actually important that we use prev_frame here,
|
|
|
2181 rather than next_frame. All the windows acceptable
|
|
|
2182 according to the given parameters should form a ring;
|
|
|
2183 Fnext_window and Fprevious_window should go back and
|
|
|
2184 forth around the ring. If we use next_frame here,
|
|
|
2185 then Fnext_window and Fprevious_window take different
|
|
|
2186 paths through the set of acceptable windows.
|
|
|
2187 window_loop assumes that these `ring' requirement are
|
|
|
2188 met. */
|
|
|
2189 {
|
|
|
2190 Lisp_Object tem1;
|
|
|
2191
|
|
|
2192 tem1 = tem;
|
|
|
2193 tem = prev_frame (tem, all_frames, console);
|
|
|
2194 /* In the case where the minibuffer is active,
|
|
|
2195 and we include its frame as well as the selected one,
|
|
|
2196 next_frame may get stuck in that frame.
|
|
|
2197 If that happens, go back to the selected frame
|
|
|
2198 so we can complete the cycle. */
|
|
|
2199 if (EQ (tem, tem1))
|
|
|
2200 XSETFRAME (tem, selected_frame ());
|
|
|
2201 }
|
|
|
2202
|
|
|
2203 /* If this frame has a minibuffer, find that window first,
|
|
|
2204 because it is conceptually the last window in that frame. */
|
|
|
2205 if (FRAME_HAS_MINIBUF_P (XFRAME (tem)))
|
|
|
2206 tem = FRAME_MINIBUF_WINDOW (XFRAME (tem));
|
|
|
2207 else
|
|
|
2208 tem = FRAME_ROOT_WINDOW (XFRAME (tem));
|
|
|
2209
|
|
|
2210 break;
|
|
|
2211 }
|
|
|
2212
|
|
|
2213 window = tem;
|
|
|
2214
|
|
|
2215 /* If we're in a combination window, find its first child and
|
|
|
2216 recurse on that. Otherwise, we've found the window we want. */
|
|
|
2217 while (1)
|
|
|
2218 {
|
|
|
2219 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2220 window = XWINDOW (window)->hchild;
|
|
|
2221 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2222 window = XWINDOW (window)->vchild;
|
|
|
2223 else break;
|
|
|
2224 while (tem = XWINDOW (window)->next, !NILP (tem))
|
|
|
2225 window = tem;
|
|
|
2226 }
|
|
|
2227 }
|
|
|
2228 /* "acceptable" is the correct spelling. */
|
|
|
2229 /* Which windows are acceptable?
|
|
|
2230 Exit the loop and accept this window if
|
|
|
2231 this isn't a minibuffer window,
|
|
|
2232 or we're accepting all minibuffer windows,
|
|
|
2233 or this is the active minibuffer and we are accepting that one, or
|
|
|
2234 we've come all the way around and we're back at the original window. */
|
|
|
2235 while (MINI_WINDOW_P (XWINDOW (window))
|
|
|
2236 && ! EQ (minibuf, Qt)
|
|
|
2237 && ! EQ (minibuf, window)
|
|
|
2238 && ! EQ (window, start_window));
|
|
|
2239
|
|
|
2240 return window;
|
|
|
2241 }
|
|
|
2242
|
|
|
2243 DEFUN ("next-vertical-window", Fnext_vertical_window, Snext_vertical_window,
|
|
|
2244 0, 1, 0 /*
|
|
|
2245 Return the next window which is vertically after WINDOW.
|
|
|
2246 */ )
|
|
|
2247 (window)
|
|
|
2248 Lisp_Object window;
|
|
|
2249 {
|
|
|
2250 Lisp_Object root;
|
|
|
2251 struct window *w = decode_window (window);
|
|
|
2252 XSETWINDOW (window, w);
|
|
|
2253
|
|
|
2254 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
2255 return Qnil;
|
|
|
2256
|
|
|
2257 root = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (XWINDOW (window))));
|
|
|
2258
|
|
|
2259 if (EQ (window, root))
|
|
|
2260 {
|
|
|
2261 while (1)
|
|
|
2262 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2263 window = XWINDOW (window)->hchild;
|
|
|
2264 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2265 window = XWINDOW (window)->vchild;
|
|
|
2266 else
|
|
|
2267 return window;
|
|
|
2268 }
|
|
|
2269
|
|
|
2270 do
|
|
|
2271 {
|
|
|
2272 if (!NILP (XWINDOW (window)->parent) &&
|
|
|
2273 !NILP (XWINDOW (XWINDOW (window)->parent)->vchild))
|
|
|
2274 {
|
|
|
2275 if (!NILP (XWINDOW (window)->next))
|
|
|
2276 return XWINDOW (window)->next;
|
|
|
2277 else
|
|
|
2278 window = XWINDOW (window)->parent;
|
|
|
2279 }
|
|
|
2280 else
|
|
|
2281 window = XWINDOW (window)->parent;
|
|
|
2282 }
|
|
|
2283 while (!EQ (window, root));
|
|
|
2284
|
|
|
2285 while (1)
|
|
|
2286 if (!NILP (XWINDOW (window)->hchild))
|
|
|
2287 window = XWINDOW (window)->hchild;
|
|
|
2288 else if (!NILP (XWINDOW (window)->vchild))
|
|
|
2289 window = XWINDOW (window)->vchild;
|
|
|
2290 else
|
|
|
2291 return window;
|
|
|
2292 }
|
|
|
2293
|
|
|
2294 DEFUN ("other-window", Fother_window, Sother_window, 1, 3, "p" /*
|
|
|
2295 Select the N'th different window on this frame.
|
|
|
2296 All windows on current frame are arranged in a cyclic order.
|
|
|
2297 This command selects the window N steps away in that order.
|
|
|
2298 A negative N moves in the opposite order.
|
|
|
2299
|
|
|
2300 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2301 If FRAME is 0, search all visible and iconified frames.
|
|
|
2302 If FRAME is t, search all frames.
|
|
|
2303 If FRAME is nil, search only the selected frame.
|
|
|
2304 If FRAME is a frame, search only that frame.
|
|
|
2305
|
|
|
2306 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2307 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2308 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2309 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2310 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2311 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2312 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2313 Otherwise, all windows are considered.
|
|
|
2314 */ )
|
|
|
2315 (n, frame, console)
|
|
|
2316 Lisp_Object n, frame, console;
|
|
|
2317 {
|
|
|
2318 int i;
|
|
|
2319 Lisp_Object w;
|
|
|
2320
|
|
|
2321 CHECK_INT (n);
|
|
|
2322 w = Fselected_window (Qnil);
|
|
|
2323 i = XINT (n);
|
|
|
2324
|
|
|
2325 while (i > 0)
|
|
|
2326 {
|
|
|
2327 w = Fnext_window (w, Qnil, frame, console);
|
|
|
2328 i--;
|
|
|
2329 }
|
|
|
2330 while (i < 0)
|
|
|
2331 {
|
|
|
2332 w = Fprevious_window (w, Qnil, frame, console);
|
|
|
2333 i++;
|
|
|
2334 }
|
|
|
2335 Fselect_window (w);
|
|
|
2336 return Qnil;
|
|
|
2337 }
|
|
|
2338
|
|
|
2339
|
|
|
2340 /* Look at all windows, performing an operation specified by TYPE
|
|
|
2341 with argument OBJ.
|
|
|
2342
|
|
|
2343 If FRAMES is Qt, look at all frames, if Qnil, look at just the selected
|
|
|
2344 frame. If FRAMES is a frame, just look at windows on that frame.
|
|
|
2345 If MINI is non-zero, perform the operation on minibuffer windows too.
|
|
|
2346 */
|
|
|
2347
|
|
|
2348 enum window_loop
|
|
|
2349 {
|
|
|
2350 WINDOW_LOOP_UNUSED,
|
|
|
2351 GET_BUFFER_WINDOW, /* Arg is buffer */
|
|
|
2352 GET_LRU_WINDOW, /* Arg is t for full-width windows only */
|
|
|
2353 DELETE_OTHER_WINDOWS, /* Arg is window not to delete */
|
|
|
2354 DELETE_BUFFER_WINDOWS, /* Arg is buffer */
|
|
|
2355 GET_LARGEST_WINDOW,
|
|
|
2356 UNSHOW_BUFFER, /* Arg is buffer */
|
|
|
2357 GET_BUFFER_WINDOW_COUNT, /* Arg is buffer */
|
|
|
2358 GET_BUFFER_MRU_WINDOW /* Arg is buffer */
|
|
|
2359 };
|
|
|
2360
|
|
|
2361 static Lisp_Object
|
|
|
2362 window_loop (enum window_loop type,
|
|
|
2363 Lisp_Object obj,
|
|
|
2364 int mini,
|
|
|
2365 Lisp_Object frames,
|
|
|
2366 int dedicated_too,
|
|
|
2367 Lisp_Object console)
|
|
|
2368 {
|
|
|
2369 /* This function can GC if type == DELETE_BUFFER_WINDOWS or UNSHOW_BUFFER */
|
|
|
2370 Lisp_Object w;
|
|
|
2371 Lisp_Object best_window = Qnil;
|
|
|
2372 Lisp_Object next_window;
|
|
|
2373 Lisp_Object last_window;
|
|
|
2374 struct frame *frame;
|
|
|
2375 Lisp_Object frame_arg = Qt;
|
|
|
2376 int count = 0; /* for GET_BUFFER_WINDOW_COUNT */
|
|
|
2377 /* #### I think the change of "precomputing" last_window and next_window
|
|
|
2378 * #### catch the lossage this is meant(?) to punt on...
|
|
|
2379 */
|
|
|
2380 int lose_lose = 0;
|
|
|
2381 Lisp_Object devcons, concons;
|
|
|
2382
|
|
|
2383 /* FRAME_ARG is Qlambda to stick to one frame,
|
|
|
2384 Qvisible to consider all visible frames,
|
|
|
2385 or Qt otherwise. */
|
|
|
2386
|
|
|
2387 /* If we're only looping through windows on a particular frame,
|
|
|
2388 FRAME points to that frame. If we're looping through windows
|
|
|
2389 on all frames, FRAME is 0. */
|
|
|
2390
|
|
|
2391 if (FRAMEP (frames))
|
|
|
2392 frame = XFRAME (frames);
|
|
|
2393 else if (NILP (frames))
|
|
|
2394 frame = selected_frame ();
|
|
|
2395 else
|
|
|
2396 frame = 0;
|
|
|
2397 if (frame)
|
|
|
2398 frame_arg = Qlambda;
|
|
|
2399 else if (ZEROP (frames))
|
|
|
2400 frame_arg = frames;
|
|
|
2401 else if (EQ (frames, Qvisible))
|
|
|
2402 frame_arg = frames;
|
|
|
2403
|
|
|
2404 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
2405 {
|
|
|
2406 Lisp_Object device = XCAR (devcons);
|
|
|
2407 Lisp_Object the_frame = Qnil;
|
|
|
2408
|
|
|
2409 if (frame)
|
|
|
2410 XSETFRAME (the_frame, frame);
|
|
|
2411 else
|
|
|
2412 the_frame = DEVICE_SELECTED_FRAME (XDEVICE (device));
|
|
|
2413
|
|
|
2414 if (NILP (the_frame))
|
|
|
2415 continue;
|
|
|
2416
|
|
|
2417 if (!device_matches_console_spec (the_frame, device, console))
|
|
|
2418 continue;
|
|
|
2419
|
|
|
2420 /* Pick a window to start with. */
|
|
|
2421 if (WINDOWP (obj))
|
|
|
2422 w = obj;
|
|
|
2423 else
|
|
|
2424 w = FRAME_SELECTED_WINDOW (XFRAME (the_frame));
|
|
|
2425
|
|
|
2426 /* Figure out the last window we're going to mess with. Since
|
|
|
2427 Fnext_window, given the same options, is guaranteed to go in a
|
|
|
2428 ring, we can just use Fprevious_window to find the last one.
|
|
|
2429
|
|
|
2430 We can't just wait until we hit the first window again,
|
|
|
2431 because it might be deleted. */
|
|
|
2432
|
|
|
2433 last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg, Qt);
|
|
|
2434
|
|
|
2435 best_window = Qnil;
|
|
|
2436 for (;;)
|
|
|
2437 {
|
|
|
2438 struct window *p = XWINDOW (w);
|
|
|
2439 struct frame *w_frame = XFRAME (WINDOW_FRAME (p));
|
|
|
2440
|
|
|
2441 /* Pick the next window now, since some operations will delete
|
|
|
2442 the current window. */
|
|
|
2443 next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg, Qt);
|
|
|
2444
|
|
|
2445 /* #### Still needed ?? */
|
|
|
2446 /* Given the outstanding quality of the rest of this code,
|
|
|
2447 I feel no shame about putting this piece of shit in. */
|
|
|
2448 if (++lose_lose >= 500)
|
|
|
2449 return Qnil;
|
|
|
2450
|
|
|
2451 /* Note that we do not pay attention here to whether
|
|
|
2452 the frame is visible, since Fnext_window skips non-visible frames
|
|
|
2453 if that is desired, under the control of frame_arg. */
|
|
|
2454 if (! MINI_WINDOW_P (p)
|
|
|
2455 || (mini && minibuf_level > 0))
|
|
|
2456 switch (type)
|
|
|
2457 {
|
|
|
2458 case GET_BUFFER_WINDOW:
|
|
|
2459 {
|
|
|
2460 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2461 return w;
|
|
|
2462 break;
|
|
|
2463 }
|
|
|
2464
|
|
|
2465 case GET_BUFFER_WINDOW_COUNT:
|
|
|
2466 {
|
|
|
2467 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2468 count++;
|
|
|
2469 break;
|
|
|
2470 }
|
|
|
2471
|
|
|
2472 case GET_LRU_WINDOW:
|
|
|
2473 {
|
|
|
2474 /* t as arg means consider only full-width windows */
|
|
|
2475 if (!NILP (obj)
|
|
|
2476 && !window_full_width_p (p))
|
|
|
2477 break;
|
|
|
2478 /* Ignore dedicated windows and minibuffers. */
|
|
|
2479 if (MINI_WINDOW_P (p)
|
|
|
2480 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2481 break;
|
|
|
2482 if (NILP (best_window)
|
|
|
2483 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2484 > XINT (p->use_time)))
|
|
|
2485 best_window = w;
|
|
|
2486 break;
|
|
|
2487 }
|
|
|
2488
|
|
|
2489 case GET_BUFFER_MRU_WINDOW:
|
|
|
2490 {
|
|
|
2491 /* #### what about the first check in GET_LRU_WINDOW? */
|
|
|
2492 /* Ignore dedicated windows and minibuffers. */
|
|
|
2493 if (MINI_WINDOW_P (p)
|
|
|
2494 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2495 break;
|
|
|
2496
|
|
|
2497 if (XBUFFER (p->buffer) == XBUFFER (obj))
|
|
|
2498 {
|
|
|
2499 if (NILP (best_window)
|
|
|
2500 || (XINT (XWINDOW (best_window)->use_time)
|
|
|
2501 < XINT (p->use_time)))
|
|
|
2502 best_window = w;
|
|
|
2503 }
|
|
|
2504 break;
|
|
|
2505 }
|
|
|
2506
|
|
|
2507 case DELETE_OTHER_WINDOWS:
|
|
|
2508 {
|
|
|
2509 /* Don't delete the last window on a frame; this can
|
|
|
2510 happen when the minibuffer is selected, and would
|
|
|
2511 cause the frame to be deleted. */
|
|
|
2512 if (p != XWINDOW (obj) && !TOP_LEVEL_WINDOW_P (XWINDOW (w)))
|
|
|
2513 Fdelete_window (w, Qnil);
|
|
|
2514 break;
|
|
|
2515 }
|
|
|
2516
|
|
|
2517 case DELETE_BUFFER_WINDOWS:
|
|
|
2518 {
|
|
|
2519 if (EQ (p->buffer, obj))
|
|
|
2520 {
|
|
|
2521 struct frame *f = XFRAME (WINDOW_FRAME (p));
|
|
|
2522
|
|
|
2523 /* If this window is dedicated, and in a frame
|
|
|
2524 of its own, kill the frame. */
|
|
|
2525 if (EQ (w, FRAME_ROOT_WINDOW (f))
|
|
|
2526 && !NILP (p->dedicated)
|
|
|
2527 && other_visible_frames (f))
|
|
|
2528 {
|
|
|
2529 /* Skip the other windows on this frame.
|
|
|
2530 There might be one, the minibuffer! */
|
|
|
2531 if (! EQ (w, last_window))
|
|
|
2532 while (f == XFRAME (WINDOW_FRAME
|
|
|
2533 (XWINDOW (next_window))))
|
|
|
2534 {
|
|
|
2535 /* As we go, check for the end of the
|
|
|
2536 loop. We mustn't start going
|
|
|
2537 around a second time. */
|
|
|
2538 if (EQ (next_window, last_window))
|
|
|
2539 {
|
|
|
2540 last_window = w;
|
|
|
2541 break;
|
|
|
2542 }
|
|
|
2543 next_window = Fnext_window (next_window,
|
|
|
2544 mini ? Qt : Qnil,
|
|
|
2545 frame_arg, Qt);
|
|
|
2546 }
|
|
|
2547 /* Now we can safely delete the frame. */
|
|
|
2548 Fdelete_frame (WINDOW_FRAME (p), Qnil);
|
|
|
2549 }
|
|
|
2550 else
|
|
|
2551 /* If we're deleting the buffer displayed in
|
|
|
2552 the only window on the frame, find a new
|
|
|
2553 buffer to display there. */
|
|
|
2554 if (NILP (p->parent))
|
|
|
2555 {
|
|
|
2556 Lisp_Object new_buffer;
|
|
|
2557 new_buffer = Fother_buffer (obj, Qnil, Qnil);
|
|
|
2558 if (NILP (new_buffer))
|
|
|
2559 new_buffer = Fget_buffer_create (QSscratch);
|
|
|
2560 Fset_window_buffer (w, new_buffer);
|
|
|
2561 if (EQ (w, Fselected_window (Qnil)))
|
|
|
2562 Fset_buffer (p->buffer);
|
|
|
2563 }
|
|
|
2564 else
|
|
|
2565 Fdelete_window (w, Qnil);
|
|
|
2566 }
|
|
|
2567 break;
|
|
|
2568 }
|
|
|
2569
|
|
|
2570 case GET_LARGEST_WINDOW:
|
|
|
2571 {
|
|
|
2572 /* Ignore dedicated windows and minibuffers. */
|
|
|
2573 if (MINI_WINDOW_P (p)
|
|
|
2574 || (dedicated_too ? 0 : !NILP (p->dedicated)))
|
|
|
2575 break;
|
|
|
2576 {
|
|
|
2577 /* write the check as follows to avoid tripping
|
|
|
2578 error_check_window() --ben */
|
|
|
2579 struct window *b = NILP (best_window) ? 0 :
|
|
|
2580 XWINDOW (best_window);
|
|
|
2581 if (NILP (best_window)
|
|
|
2582 || ((WINDOW_HEIGHT (p) * WINDOW_WIDTH (p))
|
|
|
2583 > (WINDOW_HEIGHT (b) * WINDOW_WIDTH (b))))
|
|
|
2584 best_window = w;
|
|
|
2585 }
|
|
|
2586 break;
|
|
|
2587 }
|
|
|
2588
|
|
|
2589 case UNSHOW_BUFFER:
|
|
|
2590 {
|
|
|
2591 if (EQ (p->buffer, obj))
|
|
|
2592 {
|
|
|
2593 /* Find another buffer to show in this window. */
|
|
|
2594 Lisp_Object another_buffer =
|
|
|
2595 Fother_buffer (obj, Qnil, Qnil);
|
|
|
2596 if (NILP (another_buffer))
|
|
|
2597 another_buffer
|
|
|
2598 = Fget_buffer_create (QSscratch);
|
|
|
2599 /* If this window is dedicated, and in a frame
|
|
|
2600 of its own, kill the frame. */
|
|
|
2601 if (EQ (w, FRAME_ROOT_WINDOW (w_frame))
|
|
|
2602 && !NILP (p->dedicated)
|
|
|
2603 && other_visible_frames (w_frame))
|
|
|
2604 {
|
|
|
2605 /* Skip the other windows on this frame.
|
|
|
2606 There might be one, the minibuffer! */
|
|
|
2607 if (! EQ (w, last_window))
|
|
|
2608 while (w_frame == XFRAME (WINDOW_FRAME
|
|
|
2609 (XWINDOW (next_window))))
|
|
|
2610 {
|
|
|
2611 /* As we go, check for the end of the
|
|
|
2612 loop. We mustn't start going
|
|
|
2613 around a second time. */
|
|
|
2614 if (EQ (next_window, last_window))
|
|
|
2615 {
|
|
|
2616 last_window = w;
|
|
|
2617 break;
|
|
|
2618 }
|
|
|
2619 next_window = Fnext_window (next_window,
|
|
|
2620 mini ? Qt : Qnil,
|
|
|
2621 frame_arg, Qt);
|
|
|
2622 }
|
|
|
2623 /* Now we can safely delete the frame. */
|
|
|
2624 delete_frame_internal (XFRAME (WINDOW_FRAME (p)),
|
|
|
2625 0, 0, 0);
|
|
|
2626 }
|
|
|
2627 else
|
|
|
2628 {
|
|
|
2629 /* Otherwise show a different buffer in the
|
|
|
2630 window. */
|
|
|
2631 p->dedicated = Qnil;
|
|
|
2632 Fset_window_buffer (w, another_buffer);
|
|
|
2633 if (EQ (w, Fselected_window (Qnil)))
|
|
|
2634 Fset_buffer (p->buffer);
|
|
|
2635 }
|
|
|
2636 }
|
|
|
2637 break;
|
|
|
2638 }
|
|
|
2639
|
|
|
2640 default:
|
|
|
2641 abort ();
|
|
|
2642 }
|
|
|
2643
|
|
|
2644 if (EQ (w, last_window))
|
|
|
2645 break;
|
|
|
2646
|
|
|
2647 w = next_window;
|
|
|
2648 }
|
|
|
2649 }
|
|
|
2650
|
|
|
2651 if (type == GET_BUFFER_WINDOW_COUNT)
|
|
|
2652 return (make_int (count));
|
|
|
2653 else
|
|
|
2654 return (best_window);
|
|
|
2655 }
|
|
|
2656
|
|
|
2657 #if 0 /* not currently used */
|
|
|
2658
|
|
|
2659 int
|
|
|
2660 buffer_window_count (struct buffer *b, struct frame *f)
|
|
|
2661 {
|
|
|
2662 Lisp_Object buffer, frame;
|
|
|
2663
|
|
|
2664 XSETFRAME (frame, f);
|
|
|
2665 XSETBUFFER (buffer, b);
|
|
|
2666
|
|
|
2667 return XINT (window_loop (GET_BUFFER_WINDOW_COUNT, buffer, 0, frame, 1,
|
|
|
2668 Qnil));
|
|
|
2669 }
|
|
|
2670
|
|
|
2671 int
|
|
|
2672 buffer_window_mru (struct window *w)
|
|
|
2673 {
|
|
|
2674 Lisp_Object window =
|
|
|
2675 window_loop (GET_BUFFER_MRU_WINDOW, w->buffer, 0, w->frame, 1, Qnil);
|
|
|
2676
|
|
|
2677 if (NILP (window))
|
|
|
2678 return 0;
|
|
|
2679 else if (XWINDOW (window) == w)
|
|
|
2680 return 1;
|
|
|
2681 else
|
|
|
2682 return 0;
|
|
|
2683 }
|
|
|
2684
|
|
|
2685 #endif
|
|
|
2686
|
|
|
2687
|
|
|
2688 DEFUN ("get-lru-window", Fget_lru_window, Sget_lru_window, 0, 2, 0 /*
|
|
|
2689 Return the window least recently selected or used for display.
|
|
|
2690 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2691 If FRAME is 0, search all visible and iconified frames.
|
|
|
2692 If FRAME is t, search all frames.
|
|
|
2693 If FRAME is nil, search only the selected frame.
|
|
|
2694 If FRAME is a frame, search only that frame.
|
|
|
2695
|
|
|
2696 Optional second argument CONSOLE controls which consoles or devices the
|
|
|
2697 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2698 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2699 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2700 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2701 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2702 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2703 Otherwise, all windows are considered.
|
|
|
2704 */ )
|
|
|
2705 (frame, console)
|
|
|
2706 Lisp_Object frame, console;
|
|
|
2707 {
|
|
|
2708 Lisp_Object w;
|
|
|
2709 /* First try for a non-dedicated window that is full-width */
|
|
|
2710 w = window_loop (GET_LRU_WINDOW, Qt, 0, frame, 0, console);
|
|
|
2711 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2712 return w;
|
|
|
2713
|
|
|
2714 /* Then try for any non-dedicated window */
|
|
|
2715 w = window_loop (GET_LRU_WINDOW, Qnil, 0, frame, 0, console);
|
|
|
2716 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2717 return w;
|
|
|
2718
|
|
|
2719 #if 0
|
|
|
2720 /* FSFmacs never returns a dedicated window here. If we do,
|
|
|
2721 it makes `display-buffer' not work right. #### All of this
|
|
|
2722 shit is so disgusting and awful that it needs to be rethought
|
|
|
2723 from scratch. */
|
|
|
2724 /* then try for a dedicated window that is full-width */
|
|
|
2725 w = window_loop (GET_LRU_WINDOW, Qt, 0, frame, 1, console);
|
|
|
2726 if (!NILP (w) && !EQ (w, Fselected_window (Qnil)))
|
|
|
2727 return w;
|
|
|
2728
|
|
|
2729 /* If none of them, then all windows, dedicated or not. */
|
|
|
2730 w = window_loop (GET_LRU_WINDOW, Qnil, 0, frame, 1, console);
|
|
|
2731
|
|
|
2732 /* At this point we damn well better have found something. */
|
|
|
2733 if (NILP (w)) abort ();
|
|
|
2734 #endif
|
|
|
2735
|
|
|
2736 return (w);
|
|
|
2737 }
|
|
|
2738
|
|
|
2739 DEFUN ("get-largest-window", Fget_largest_window, Sget_largest_window, 0, 2, 0 /*
|
|
|
2740 Return the window largest in area.
|
|
|
2741 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2742 If FRAME is 0, search all visible and iconified frames.
|
|
|
2743 If FRAME is t, search all frames.
|
|
|
2744 If FRAME is nil, search only the selected frame.
|
|
|
2745 If FRAME is a frame, search only that frame.
|
|
|
2746
|
|
|
2747 Optional second argument CONSOLE controls which consoles or devices the
|
|
|
2748 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2749 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2750 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2751 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2752 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2753 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2754 Otherwise, all windows are considered.
|
|
|
2755 */ )
|
|
|
2756 (frame, console)
|
|
|
2757 Lisp_Object frame, console;
|
|
|
2758 {
|
|
|
2759 /* Don't search dedicated windows because FSFmacs doesn't.
|
|
|
2760 This stuff is all black magic so don't try to apply common
|
|
|
2761 sense to it. */
|
|
|
2762 return window_loop (GET_LARGEST_WINDOW, Qnil, 0, frame, 0, console);
|
|
|
2763 }
|
|
|
2764
|
|
|
2765 DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 1, 3, 0 /*
|
|
|
2766 Return a window currently displaying BUFFER, or nil if none.
|
|
|
2767 If optional argument FRAME is `visible', search all visible frames.
|
|
|
2768 If optional argument FRAME is 0, search all visible and iconified frames.
|
|
|
2769 If FRAME is t, search all frames.
|
|
|
2770 If FRAME is nil, search only the selected frame.
|
|
|
2771 If FRAME is a frame, search only that frame.
|
|
|
2772
|
|
|
2773 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2774 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2775 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2776 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2777 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2778 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2779 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2780 Otherwise, all windows are considered.
|
|
|
2781 */ )
|
|
|
2782 (buffer, frame, console)
|
|
|
2783 Lisp_Object buffer, frame, console;
|
|
|
2784 {
|
|
|
2785 buffer = Fget_buffer (buffer);
|
|
|
2786 if (BUFFERP (buffer))
|
|
|
2787 /* Search dedicated windows too. (Doesn't matter here anyway.) */
|
|
|
2788 return window_loop (GET_BUFFER_WINDOW, buffer, 1, frame, 1, console);
|
|
|
2789 else
|
|
|
2790 return Qnil;
|
|
|
2791 }
|
|
|
2792
|
|
|
2793 /* These functions used to be `buffer-left-margin-pixel-width', etc.
|
|
|
2794 but there is no sensible way to implement those functions, since
|
|
|
2795 you can't in general derive a window from a buffer. */
|
|
|
2796
|
|
|
2797 DEFUN ("window-left-margin-pixel-width", Fwindow_left_margin_pixel_width,
|
|
|
2798 Swindow_left_margin_pixel_width, 0, 1, 0 /*
|
|
|
2799 Return the width in pixels of the left outside margin of window WINDOW.
|
|
|
2800 If WINDOW is nil, the selected window is assumed.
|
|
|
2801 */ )
|
|
|
2802 (window)
|
|
|
2803 Lisp_Object window;
|
|
|
2804 {
|
|
|
2805 struct window *w = decode_window (window);
|
|
|
2806
|
|
|
2807 return (make_int (window_left_margin_width (w)));
|
|
|
2808 }
|
|
|
2809
|
|
|
2810 DEFUN ("window-right-margin-pixel-width", Fwindow_right_margin_pixel_width,
|
|
|
2811 Swindow_right_margin_pixel_width, 0, 1, 0 /*
|
|
|
2812 Return the width in pixels of the right outside margin of window WINDOW.
|
|
|
2813 If WINDOW is nil, the selected window is assumed.
|
|
|
2814 */ )
|
|
|
2815 (window)
|
|
|
2816 Lisp_Object window;
|
|
|
2817 {
|
|
|
2818 struct window *w = decode_window (window);
|
|
|
2819
|
|
|
2820 return (make_int (window_right_margin_width (w)));
|
|
|
2821 }
|
|
|
2822
|
|
|
2823 DEFUN ("delete-other-windows", Fdelete_other_windows, Sdelete_other_windows,
|
|
|
2824 0, 1, "" /*
|
|
|
2825 Make WINDOW (or the selected window) fill its frame.
|
|
|
2826 Only the frame WINDOW is on is affected.
|
|
|
2827 This function tries to reduce display jumps
|
|
|
2828 by keeping the text previously visible in WINDOW
|
|
|
2829 in the same place on the frame. Doing this depends on
|
|
|
2830 the value of (window-start WINDOW), so if calling this function
|
|
|
2831 in a program gives strange scrolling, make sure the window-start
|
|
|
2832 value is reasonable when this function is called.
|
|
|
2833 */ )
|
|
|
2834 (window)
|
|
|
2835 Lisp_Object window;
|
|
|
2836 {
|
|
|
2837 struct window *w = decode_window (window);
|
|
|
2838 struct buffer *b = XBUFFER (w->buffer);
|
|
|
2839 Bufpos start_pos;
|
|
|
2840 int old_top = WINDOW_TOP (w);
|
|
|
2841
|
|
|
2842 XSETWINDOW (window, w);
|
|
|
2843
|
|
|
2844 if (MINI_WINDOW_P (w) && old_top > 0)
|
|
|
2845 error ("Can't expand minibuffer to full frame");
|
|
|
2846
|
|
|
2847 /* Ignore dedicated windows. */
|
|
|
2848 window_loop (DELETE_OTHER_WINDOWS, window, 0, w->frame, 0, Qnil);
|
|
|
2849
|
|
|
2850 start_pos = marker_position (w->start[CURRENT_DISP]);
|
|
|
2851
|
|
|
2852 /* Try to minimize scrolling, by setting the window start to the
|
|
|
2853 point which will cause the text at the old window start to be at
|
|
|
2854 the same place on the frame. But don't try to do this if the
|
|
|
2855 window start is outside the visible portion (as might happen when
|
|
|
2856 the display is not current, due to typeahead). */
|
|
|
2857 if (start_pos >= BUF_BEGV (b) && start_pos <= BUF_ZV (b)
|
|
|
2858 && !MINI_WINDOW_P (w))
|
|
|
2859 {
|
|
|
2860 Bufpos new_start = start_with_line_at_pixpos (w, start_pos, old_top);
|
|
|
2861
|
|
|
2862 if (new_start >= BUF_BEGV (b) && new_start <= BUF_ZV (b))
|
|
|
2863 {
|
|
|
2864 Fset_marker (w->start[CURRENT_DISP], make_int (new_start),
|
|
|
2865 w->buffer);
|
|
|
2866 w->start_at_line_beg = beginning_of_line_p (b, new_start);
|
|
|
2867 }
|
|
|
2868 /* We need to do this, so that the window-scroll-functions
|
|
|
2869 get called. */
|
|
|
2870 w->force_start = 1;
|
|
|
2871 }
|
|
|
2872
|
|
|
2873 return Qnil;
|
|
|
2874 }
|
|
|
2875
|
|
|
2876 DEFUN ("delete-windows-on", Fdelete_windows_on, Sdelete_windows_on,
|
|
|
2877 1, 3, "bDelete windows on (buffer): " /*
|
|
|
2878 Delete all windows showing BUFFER.
|
|
|
2879 Optional second argument FRAME controls which frames are affected.
|
|
|
2880 If nil or omitted, delete all windows showing BUFFER in any frame.
|
|
|
2881 If t, delete only windows showing BUFFER in the selected frame.
|
|
|
2882 If `visible', delete all windows showing BUFFER in any visible frame.
|
|
|
2883 If a frame, delete only windows showing BUFFER in that frame.
|
|
|
2884
|
|
|
2885 Optional third argument CONSOLE controls which consoles or devices the
|
|
|
2886 returned window may be on. If CONSOLE is a console, return windows only
|
|
|
2887 on that console. If CONSOLE is a device, return windows only on that
|
|
|
2888 device. If CONSOLE is a console type, return windows only on consoles
|
|
|
2889 of that type. If CONSOLE is 'window-system, return any windows on any
|
|
|
2890 window-system consoles. If CONSOLE is nil or omitted, return windows only
|
|
|
2891 on FRAME'S console, or on the selected console if FRAME is not a frame.
|
|
|
2892 Otherwise, all windows are considered.
|
|
|
2893 */ )
|
|
|
2894 (buffer, frame, console)
|
|
|
2895 Lisp_Object buffer, frame, console;
|
|
|
2896 {
|
|
|
2897 /* This function can GC */
|
|
|
2898 /* FRAME uses t and nil to mean the opposite of what window_loop
|
|
|
2899 expects. */
|
|
|
2900 if (!FRAMEP (frame))
|
|
|
2901 frame = NILP (frame) ? Qt : Qnil;
|
|
|
2902
|
|
|
2903 if (!NILP (buffer))
|
|
|
2904 {
|
|
|
2905 buffer = Fget_buffer (buffer);
|
|
|
2906 CHECK_BUFFER (buffer);
|
|
|
2907 /* Ignore dedicated windows. */
|
|
|
2908 window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, frame, 0, console);
|
|
|
2909 }
|
|
|
2910 return Qnil;
|
|
|
2911 }
|
|
|
2912
|
|
|
2913 DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows,
|
|
|
2914 Sreplace_buffer_in_windows,
|
|
|
2915 1, 1, "bReplace buffer in windows: " /*
|
|
|
2916 Replace BUFFER with some other buffer in all windows showing it.
|
|
|
2917 */ )
|
|
|
2918 (buffer)
|
|
|
2919 Lisp_Object buffer;
|
|
|
2920 {
|
|
|
2921 /* This function can GC */
|
|
|
2922 if (!NILP (buffer))
|
|
|
2923 {
|
|
|
2924 buffer = Fget_buffer (buffer);
|
|
|
2925 CHECK_BUFFER (buffer);
|
|
|
2926 /* Ignore dedicated windows. */
|
|
|
2927 window_loop (UNSHOW_BUFFER, buffer, 0, Qt, 0, Qnil);
|
|
|
2928 }
|
|
|
2929 return Qnil;
|
|
|
2930 }
|
|
|
2931
|
|
|
2932 /* The smallest acceptable dimensions for a window. Anything smaller
|
|
|
2933 might crash Emacs. */
|
|
|
2934 #define MIN_SAFE_WINDOW_WIDTH (2)
|
|
|
2935 #define MIN_SAFE_WINDOW_HEIGHT (2)
|
|
|
2936
|
|
|
2937 /* Make sure that window_min_height and window_min_width are
|
|
|
2938 not too small; if they are, set them to safe minima. */
|
|
|
2939
|
|
|
2940 static void
|
|
|
2941 check_min_window_sizes (void)
|
|
|
2942 {
|
|
|
2943 /* Smaller values might permit a crash. */
|
|
|
2944 if (window_min_width < MIN_SAFE_WINDOW_WIDTH)
|
|
|
2945 window_min_width = MIN_SAFE_WINDOW_WIDTH;
|
|
|
2946 if (window_min_height < MIN_SAFE_WINDOW_HEIGHT)
|
|
|
2947 window_min_height = MIN_SAFE_WINDOW_HEIGHT;
|
|
|
2948 }
|
|
|
2949
|
|
|
2950 /* If *ROWS or *COLS are too small a size for FRAME, set them to the
|
|
|
2951 minimum allowable size. */
|
|
|
2952 void
|
|
|
2953 check_frame_size (struct frame *frame, int *rows, int *cols)
|
|
|
2954 {
|
|
|
2955 /* For height, we have to see whether the frame has a minibuffer, and
|
|
|
2956 whether it wants a modeline. */
|
|
|
2957 int min_height =
|
|
|
2958 (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1
|
|
|
2959 : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT
|
|
|
2960 : 2 * MIN_SAFE_WINDOW_HEIGHT - 1);
|
|
|
2961
|
|
|
2962 if (*rows < min_height)
|
|
|
2963 *rows = min_height;
|
|
|
2964 if (*cols < MIN_SAFE_WINDOW_WIDTH)
|
|
|
2965 *cols = MIN_SAFE_WINDOW_WIDTH;
|
|
|
2966 }
|
|
|
2967
|
|
|
2968 /* Normally the window is deleted if it gets too small.
|
|
|
2969 nodelete nonzero means do not do this.
|
|
|
2970 (The caller should check later and do so if appropriate) */
|
|
|
2971 static void
|
|
|
2972 set_window_pixsize (Lisp_Object window, int new_pixsize, int nodelete,
|
|
|
2973 int set_height)
|
|
|
2974 {
|
|
|
2975 struct window *w = XWINDOW (window);
|
|
|
2976 struct frame *f = XFRAME (w->frame);
|
|
|
2977 struct window *c;
|
|
|
2978 int old_pixsize = (set_height ? WINDOW_HEIGHT (w) : WINDOW_WIDTH (w));
|
|
|
2979 Lisp_Object child, minor_kid, major_kid;
|
|
|
2980 int minsize;
|
|
|
2981 int line_size;
|
|
|
2982 int defheight, defwidth;
|
|
|
2983
|
|
|
2984 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
2985 functions should be called. */
|
|
|
2986 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
2987 line_size = (set_height ? defheight : defwidth);
|
|
|
2988
|
|
|
2989 minsize = (set_height ? window_min_height : window_min_width);
|
|
|
2990 minsize *= line_size;
|
|
|
2991
|
|
|
2992 check_min_window_sizes ();
|
|
|
2993
|
|
|
2994 if (!nodelete
|
|
|
2995 && !TOP_LEVEL_WINDOW_P (w)
|
|
|
2996 && new_pixsize < minsize)
|
|
|
2997 {
|
|
|
2998 Fdelete_window (window, Qnil);
|
|
|
2999 return;
|
|
|
3000 }
|
|
|
3001
|
|
|
3002 SET_LAST_MODIFIED (w, 0);
|
|
|
3003 SET_LAST_FACECHANGE (w);
|
|
|
3004 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); /* multiple windows affected */
|
|
|
3005 if (set_height)
|
|
|
3006 {
|
|
|
3007 WINDOW_HEIGHT (w) = new_pixsize;
|
|
|
3008 major_kid = w->vchild;
|
|
|
3009 minor_kid = w->hchild;
|
|
|
3010 }
|
|
|
3011 else
|
|
|
3012 {
|
|
|
3013 WINDOW_WIDTH (w) = new_pixsize;
|
|
|
3014 major_kid = w->hchild;
|
|
|
3015 minor_kid = w->vchild;
|
|
|
3016 }
|
|
|
3017
|
|
|
3018 if (!NILP (minor_kid))
|
|
|
3019 {
|
|
|
3020 for (child = minor_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3021 {
|
|
|
3022 if (set_height)
|
|
|
3023 WINDOW_TOP (XWINDOW (child)) = WINDOW_TOP (w);
|
|
|
3024 else
|
|
|
3025 WINDOW_LEFT (XWINDOW (child)) = WINDOW_LEFT (w);
|
|
|
3026
|
|
|
3027 set_window_pixsize (child, new_pixsize, nodelete, set_height);
|
|
|
3028 }
|
|
|
3029 }
|
|
|
3030 else if (!NILP (major_kid))
|
|
|
3031 {
|
|
|
3032 int last_pos, last_old_pos, pos, old_pos, first;
|
|
|
3033 int pixel_adj_left = new_pixsize - old_pixsize;
|
|
|
3034 int div_val = old_pixsize << 1;
|
|
|
3035
|
|
|
3036 /* Sometimes we may get called with our old size. In that case
|
|
|
3037 we don't need to do anything. */
|
|
|
3038 if (!pixel_adj_left)
|
|
|
3039 return;
|
|
|
3040
|
|
|
3041 last_pos = first = (set_height ? WINDOW_TOP (w) : WINDOW_LEFT (w));
|
|
|
3042 last_old_pos = 0;
|
|
|
3043
|
|
|
3044 for (child = major_kid; !NILP (child); child = c->next)
|
|
|
3045 {
|
|
|
3046 c = XWINDOW (child);
|
|
|
3047
|
|
|
3048 if (set_height)
|
|
|
3049 {
|
|
|
3050 old_pos = last_old_pos + WINDOW_HEIGHT (c);
|
|
|
3051 WINDOW_TOP (c) = last_pos;
|
|
|
3052 }
|
|
|
3053 else
|
|
|
3054 {
|
|
|
3055 old_pos = last_old_pos + WINDOW_WIDTH (c);
|
|
|
3056 WINDOW_LEFT (c) = last_pos;
|
|
|
3057 }
|
|
|
3058
|
|
|
3059 pos = (((old_pos * new_pixsize) << 1) + old_pixsize) / div_val;
|
|
|
3060 /* All but the the last window should have a height which is
|
|
|
3061 a multiple of the default line height. */
|
|
|
3062 if (!NILP (c->next))
|
|
|
3063 pos = (pos / line_size) * line_size;
|
|
|
3064
|
|
|
3065 /* Avoid confusion: don't delete child if it becomes too small */
|
|
|
3066 set_window_pixsize (child, pos + first - last_pos, 1, set_height);
|
|
|
3067
|
|
|
3068 last_pos = pos + first;
|
|
|
3069 last_old_pos = old_pos;
|
|
|
3070 }
|
|
|
3071
|
|
|
3072 /* Now delete any children that became too small. */
|
|
|
3073 if (!nodelete)
|
|
|
3074 for (child = major_kid; !NILP (child); child = XWINDOW (child)->next)
|
|
|
3075 {
|
|
|
3076 if (set_height)
|
|
|
3077 set_window_pixheight (child, WINDOW_HEIGHT (XWINDOW (child)), 0);
|
|
|
3078 else
|
|
|
3079 set_window_pixwidth (child, WINDOW_WIDTH (XWINDOW (child)), 0);
|
|
|
3080 }
|
|
|
3081 }
|
|
|
3082 }
|
|
|
3083
|
|
|
3084 /* Set the height of WINDOW and all its inferiors. */
|
|
|
3085 void
|
|
|
3086 set_window_pixheight (Lisp_Object window, int new_pixheight, int nodelete)
|
|
|
3087 {
|
|
|
3088 set_window_pixsize (window, new_pixheight, nodelete, 1);
|
|
|
3089 }
|
|
|
3090
|
|
|
3091 /* Recursively set width of WINDOW and its inferiors. */
|
|
|
3092 void
|
|
|
3093 set_window_pixwidth (Lisp_Object window, int new_pixwidth, int nodelete)
|
|
|
3094 {
|
|
|
3095 set_window_pixsize (window, new_pixwidth, nodelete, 0);
|
|
|
3096 }
|
|
|
3097
|
|
|
3098
|
|
|
3099 static int window_select_count;
|
|
|
3100
|
|
|
3101 DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 2, 0 /*
|
|
|
3102 Make WINDOW display BUFFER as its contents.
|
|
|
3103 BUFFER can be a buffer or buffer name.
|
|
|
3104 */ )
|
|
|
3105 (window, buffer)
|
|
|
3106 Lisp_Object window, buffer;
|
|
|
3107 {
|
|
|
3108 Lisp_Object tem;
|
|
|
3109 struct window *w = decode_window (window);
|
|
|
3110
|
|
|
3111 buffer = Fget_buffer (buffer);
|
|
|
3112 CHECK_BUFFER (buffer);
|
|
|
3113
|
|
|
3114 if (!BUFFER_LIVE_P (XBUFFER (buffer)))
|
|
|
3115 error ("Attempt to display deleted buffer");
|
|
|
3116
|
|
|
3117 tem = w->buffer;
|
|
|
3118 if (NILP (tem))
|
|
|
3119 error ("Window is deleted");
|
|
|
3120
|
|
|
3121 /* While this seems like a logical thing to do, it causes problems
|
|
|
3122 because of saved window configurations. It is possible for a
|
|
|
3123 buffer to get restored into a window in which it is already being
|
|
|
3124 displayed, but start and point are actually at completely
|
|
|
3125 different locations. So we let this function complete fully and
|
|
|
3126 it will then make sure redisplay correctly updates things.
|
|
|
3127
|
|
|
3128 #### This is a kludge. The correct approach is not to do this
|
|
|
3129 but to fix set-window-configuration. */
|
|
|
3130 #if 0
|
|
|
3131 else if (EQ (tem, buffer))
|
|
|
3132 return (Qnil);
|
|
|
3133 #endif
|
|
|
3134 else if (! EQ (tem, Qt)) /* w->buffer is t when the window
|
|
|
3135 is first being set up. */
|
|
|
3136 {
|
|
|
3137 if (!NILP (w->dedicated) && !EQ (tem, buffer))
|
|
|
3138 error ("Window is dedicated to buffer %s",
|
|
|
3139 string_data (XSTRING (XBUFFER (tem)->name)));
|
|
|
3140
|
|
|
3141 unshow_buffer (w);
|
|
|
3142 }
|
|
|
3143
|
|
|
3144 w->buffer = buffer;
|
|
|
3145 w->window_end_pos[CURRENT_DISP] = 0;
|
|
|
3146 w->hscroll = 0;;
|
|
|
3147 Fset_marker (w->pointm[CURRENT_DISP],
|
|
|
3148 make_int (BUF_PT (XBUFFER (buffer))),
|
|
|
3149 buffer);
|
|
|
3150 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
3151 make_int (XBUFFER (buffer)->last_window_start),
|
|
|
3152 buffer);
|
|
|
3153 Fset_marker (w->sb_point, w->start[CURRENT_DISP], buffer);
|
|
|
3154 w->start_at_line_beg = 0;
|
|
|
3155 w->force_start = 0; /* Lucid fix */
|
|
|
3156 SET_LAST_MODIFIED (w, 1);
|
|
|
3157 SET_LAST_FACECHANGE (w);
|
|
|
3158 MARK_WINDOWS_CHANGED (w);
|
|
|
3159 recompute_all_cached_specifiers_in_window (w);
|
|
|
3160 if (EQ (window, Fselected_window (Qnil)))
|
|
|
3161 {
|
|
|
3162 Fset_buffer (buffer);
|
|
|
3163 #ifdef ENERGIZE
|
|
|
3164 energize_buffer_shown_hook (w);
|
|
|
3165 #endif
|
|
|
3166 }
|
|
|
3167 return Qnil;
|
|
|
3168 }
|
|
|
3169
|
|
|
3170 DEFUN ("select-window", Fselect_window, Sselect_window, 1, 1, 0 /*
|
|
|
3171 Select WINDOW. Most editing will apply to WINDOW's buffer.
|
|
|
3172 The main editor command loop selects the buffer of the selected window
|
|
|
3173 before each command.
|
|
|
3174 */ )
|
|
|
3175 (window)
|
|
|
3176 Lisp_Object window;
|
|
|
3177 {
|
|
|
3178 struct window *w;
|
|
|
3179 Lisp_Object old_selected_window = Fselected_window (Qnil);
|
|
|
3180
|
|
|
3181 CHECK_LIVE_WINDOW (window);
|
|
|
3182 w = XWINDOW (window);
|
|
|
3183
|
|
|
3184 /* we have already caught dead-window errors */
|
|
|
3185 if (!NILP (w->hchild) || !NILP (w->vchild))
|
|
|
3186 error ("Trying to select non-leaf window");
|
|
|
3187
|
|
|
3188 w->use_time = make_int (++window_select_count);
|
|
|
3189 if (EQ (window, old_selected_window))
|
|
|
3190 return window;
|
|
|
3191
|
|
|
3192 /* deselect the old window, if it exists (it might not exist if
|
|
|
3193 the selected device has no frames, which occurs at startup) */
|
|
|
3194 if (!NILP (old_selected_window))
|
|
|
3195 {
|
|
|
3196 struct window *ow = XWINDOW (old_selected_window);
|
|
|
3197
|
|
|
3198 #ifdef ENERGIZE
|
|
|
3199 if (! MINI_WINDOW_P (w))
|
|
|
3200 energize_window_deselected_hook (ow);
|
|
|
3201 #endif
|
|
|
3202
|
|
|
3203 Fset_marker (ow->pointm[CURRENT_DISP],
|
|
|
3204 make_int (BUF_PT (XBUFFER (ow->buffer))),
|
|
|
3205 ow->buffer);
|
|
|
3206
|
|
|
3207 MARK_WINDOWS_CHANGED (ow);
|
|
|
3208 }
|
|
|
3209
|
|
|
3210 /* now select the window's frame */
|
|
|
3211 set_frame_selected_window (XFRAME (WINDOW_FRAME (w)), window);
|
|
|
3212
|
|
|
3213 select_frame_1 (WINDOW_FRAME (w));
|
|
|
3214
|
|
|
3215 /* also select the window's buffer */
|
|
|
3216 Frecord_buffer (w->buffer);
|
|
|
3217 Fset_buffer (w->buffer);
|
|
|
3218
|
|
|
3219 /* Go to the point recorded in the window.
|
|
|
3220 This is important when the buffer is in more
|
|
|
3221 than one window. It also matters when
|
|
|
3222 redisplay_window has altered point after scrolling,
|
|
|
3223 because it makes the change only in the window. */
|
|
|
3224 {
|
|
|
3225 Bufpos new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
3226 if (new_point < BUF_BEGV (current_buffer))
|
|
|
3227 new_point = BUF_BEGV (current_buffer);
|
|
|
3228 else if (new_point > BUF_ZV (current_buffer))
|
|
|
3229 new_point = BUF_ZV (current_buffer);
|
|
|
3230
|
|
|
3231 BUF_SET_PT (current_buffer, new_point);
|
|
|
3232 }
|
|
|
3233
|
|
|
3234 MARK_WINDOWS_CHANGED (w);
|
|
|
3235
|
|
|
3236 #ifdef ENERGIZE
|
|
|
3237 if (! MINI_WINDOW_P (w))
|
|
|
3238 energize_window_selected_hook (w);
|
|
|
3239 #endif
|
|
|
3240
|
|
|
3241 return window;
|
|
|
3242 }
|
|
|
3243
|
|
|
3244 Lisp_Object
|
|
|
3245 display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p,
|
|
|
3246 Lisp_Object override_frame)
|
|
|
3247 {
|
|
|
3248 return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame);
|
|
|
3249 }
|
|
|
3250
|
|
|
3251 void
|
|
|
3252 temp_output_buffer_show (Lisp_Object buf, Lisp_Object same_frame)
|
|
|
3253 {
|
|
|
3254 /* This function can GC */
|
|
|
3255 Lisp_Object window;
|
|
|
3256 struct window *w;
|
|
|
3257 struct buffer *b = XBUFFER (buf);
|
|
|
3258
|
|
|
3259 BUF_SAVE_MODIFF (XBUFFER (buf)) = BUF_MODIFF (b);
|
|
|
3260 widen_buffer (b, 0);
|
|
|
3261 BUF_SET_PT (b, BUF_BEG (b));
|
|
|
3262
|
|
|
3263 if (!EQ (Vtemp_buffer_show_function, Qnil))
|
|
|
3264 call1 (Vtemp_buffer_show_function, buf);
|
|
|
3265 else
|
|
|
3266 {
|
|
|
3267 window = display_buffer (buf, Qnil, same_frame);
|
|
|
3268
|
|
|
3269 if (!EQ (XWINDOW (window)->frame, Fselected_frame (Qnil)))
|
|
|
3270 Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window)));
|
|
|
3271
|
|
|
3272 Vminibuf_scroll_window = window;
|
|
|
3273 w = XWINDOW (window);
|
|
|
3274 w->hscroll = 0;
|
|
|
3275 set_marker_restricted (w->start[CURRENT_DISP], make_int (1), buf);
|
|
|
3276 set_marker_restricted (w->pointm[CURRENT_DISP], make_int (1), buf);
|
|
|
3277 set_marker_restricted (w->sb_point, make_int (1), buf);
|
|
|
3278
|
|
|
3279 /* Run temp-buffer-show-hook, with the chosen window selected. */
|
|
|
3280 if (!preparing_for_armageddon)
|
|
|
3281 {
|
|
|
3282 Lisp_Object tem;
|
|
|
3283 tem = Fboundp (Qtemp_buffer_show_hook);
|
|
|
3284 if (!NILP (tem))
|
|
|
3285 {
|
|
|
3286 tem = Fsymbol_value (Qtemp_buffer_show_hook);
|
|
|
3287 if (!NILP (tem))
|
|
|
3288 {
|
|
|
3289 int count = specpdl_depth ();
|
|
|
3290
|
|
|
3291 /* Select the window that was chosen, for running
|
|
|
3292 the hook. */
|
|
|
3293 record_unwind_protect (save_window_excursion_unwind,
|
|
|
3294 Fcurrent_window_configuration (Qnil));
|
|
|
3295
|
|
|
3296 Fselect_window (window);
|
|
|
3297 run_hook (Qtemp_buffer_show_hook);
|
|
|
3298 unbind_to (count, Qnil);
|
|
|
3299 }
|
|
|
3300 }
|
|
|
3301 }
|
|
|
3302 }
|
|
|
3303 }
|
|
|
3304
|
|
|
3305 static void
|
|
|
3306 make_dummy_parent (Lisp_Object window)
|
|
|
3307 {
|
|
|
3308 Lisp_Object new = Qnil;
|
|
|
3309 struct window *o = XWINDOW (window);
|
|
|
3310 struct window *p = alloc_lcrecord (sizeof (struct window),
|
|
|
3311 lrecord_window);
|
|
|
3312
|
|
|
3313 XSETWINDOW (new, p);
|
|
|
3314 copy_lcrecord (p, o);
|
|
|
3315
|
|
|
3316 /* Don't copy the pointers to the line start cache or the face
|
|
|
3317 instances. */
|
|
|
3318 p->line_start_cache = Dynarr_new (struct line_start_cache);
|
|
|
3319 p->face_cachels = Dynarr_new (struct face_cachel);
|
|
|
3320 p->glyph_cachels = Dynarr_new (struct glyph_cachel);
|
|
|
3321
|
|
|
3322 /* Put new into window structure in place of window */
|
|
|
3323 replace_window (window, new);
|
|
|
3324
|
|
|
3325 o->next = Qnil;
|
|
|
3326 o->prev = Qnil;
|
|
|
3327 o->vchild = Qnil;
|
|
|
3328 o->hchild = Qnil;
|
|
|
3329 o->parent = new;
|
|
|
3330
|
|
|
3331 p->start[CURRENT_DISP] = Qnil;
|
|
|
3332 p->start[DESIRED_DISP] = Qnil;
|
|
|
3333 p->start[CMOTION_DISP] = Qnil;
|
|
|
3334 p->pointm[CURRENT_DISP] = Qnil;
|
|
|
3335 p->pointm[DESIRED_DISP] = Qnil;
|
|
|
3336 p->pointm[CMOTION_DISP] = Qnil;
|
|
|
3337 p->sb_point = Qnil;
|
|
|
3338 p->buffer = Qnil;
|
|
|
3339 }
|
|
|
3340
|
|
|
3341 DEFUN ("split-window", Fsplit_window, Ssplit_window, 0, 3, "" /*
|
|
|
3342 Split WINDOW, putting SIZE lines in the first of the pair.
|
|
|
3343 WINDOW defaults to selected one and SIZE to half its size.
|
|
|
3344 If optional third arg HOR-FLAG is non-nil, split side by side
|
|
|
3345 and put SIZE columns in the first of the pair.
|
|
|
3346 */ )
|
|
|
3347 (window, chsize, horflag)
|
|
|
3348 Lisp_Object window, chsize, horflag;
|
|
|
3349 {
|
|
|
3350 Lisp_Object new;
|
|
|
3351 struct window *o, *p;
|
|
|
3352 struct frame *f;
|
|
|
3353 int size;
|
|
|
3354 int psize;
|
|
|
3355
|
|
|
3356 if (NILP (window))
|
|
|
3357 window = Fselected_window (Qnil);
|
|
|
3358 else
|
|
|
3359 CHECK_WINDOW (window);
|
|
|
3360
|
|
|
3361 o = XWINDOW (window);
|
|
|
3362 f = XFRAME (WINDOW_FRAME (o));
|
|
|
3363
|
|
|
3364 if (NILP (chsize))
|
|
|
3365 {
|
|
|
3366 if (!NILP (horflag))
|
|
|
3367 /* In the new scheme, we are symmetric with respect to separators
|
|
|
3368 so there is no need to do weird things here. */
|
|
|
3369 {
|
|
|
3370 psize = WINDOW_WIDTH (o) >> 1;
|
|
|
3371 size = window_pixel_width_to_char_width (o, psize, 0);
|
|
|
3372 }
|
|
|
3373 else
|
|
|
3374 {
|
|
|
3375 psize = WINDOW_HEIGHT (o) >> 1;
|
|
|
3376 size = window_pixel_height_to_char_height (o, psize, 1);
|
|
|
3377 }
|
|
|
3378 }
|
|
|
3379 else
|
|
|
3380 {
|
|
|
3381 CHECK_INT (chsize);
|
|
|
3382 size = XINT (chsize);
|
|
|
3383 if (!NILP (horflag))
|
|
|
3384 psize = window_char_width_to_pixel_width (o, size, 0);
|
|
|
3385 else
|
|
|
3386 psize = window_char_height_to_pixel_height (o, size, 1);
|
|
|
3387 }
|
|
|
3388
|
|
|
3389 if (MINI_WINDOW_P (o))
|
|
|
3390 error ("Attempt to split minibuffer window");
|
|
|
3391 else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o))))
|
|
|
3392 error ("Attempt to split unsplittable frame");
|
|
|
3393
|
|
|
3394 check_min_window_sizes ();
|
|
|
3395
|
|
|
3396 if (NILP (horflag))
|
|
|
3397 {
|
|
|
3398 if (size < window_min_height)
|
|
|
3399 error ("Window height %d too small (after splitting)", size);
|
|
|
3400 if (size + window_min_height > window_char_height (o, 1))
|
|
|
3401 error ("Window height %d too small (after splitting)",
|
|
|
3402 window_char_height (o, 1) - size);
|
|
|
3403 if (NILP (o->parent)
|
|
|
3404 || NILP (XWINDOW (o->parent)->vchild))
|
|
|
3405 {
|
|
|
3406 make_dummy_parent (window);
|
|
|
3407 reset_face_cachels (XWINDOW (window));
|
|
|
3408 new = o->parent;
|
|
|
3409 XWINDOW (new)->vchild = window;
|
|
|
3410 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3411 }
|
|
|
3412 }
|
|
|
3413 else
|
|
|
3414 {
|
|
|
3415 if (size < window_min_width)
|
|
|
3416 error ("Window width %d too small (after splitting)", size);
|
|
|
3417 if (size + window_min_width > window_char_width (o, 0))
|
|
|
3418 error ("Window width %d too small (after splitting)",
|
|
|
3419 window_char_width (o, 0) - size);
|
|
|
3420 if (NILP (o->parent)
|
|
|
3421 || NILP (XWINDOW (o->parent)->hchild))
|
|
|
3422 {
|
|
|
3423 make_dummy_parent (window);
|
|
|
3424 reset_face_cachels (XWINDOW (window));
|
|
|
3425 new = o->parent;
|
|
|
3426 XWINDOW (new)->hchild = window;
|
|
|
3427 XFRAME (o->frame)->mirror_dirty = 1;
|
|
|
3428 }
|
|
|
3429 }
|
|
|
3430
|
|
|
3431 /* Now we know that window's parent is a vertical combination
|
|
|
3432 if we are dividing vertically, or a horizontal combination
|
|
|
3433 if we are making side-by-side windows */
|
|
|
3434
|
|
|
3435 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
3436 new = allocate_window ();
|
|
|
3437 p = XWINDOW (new);
|
|
|
3438
|
|
|
3439 p->frame = o->frame;
|
|
|
3440 p->next = o->next;
|
|
|
3441 if (!NILP (p->next))
|
|
|
3442 XWINDOW (p->next)->prev = new;
|
|
|
3443 p->prev = window;
|
|
|
3444 o->next = new;
|
|
|
3445 p->parent = o->parent;
|
|
|
3446 p->buffer = Qt;
|
|
|
3447
|
|
|
3448 reset_face_cachels (p);
|
|
|
3449 reset_glyph_cachels (p);
|
|
|
3450
|
|
|
3451
|
|
|
3452 /* Apportion the available frame space among the two new windows */
|
|
|
3453
|
|
|
3454 if (!NILP (horflag))
|
|
|
3455 {
|
|
|
3456 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o);
|
|
|
3457 WINDOW_TOP (p) = WINDOW_TOP (o);
|
|
|
3458 WINDOW_WIDTH (p) = WINDOW_WIDTH (o) - psize;
|
|
|
3459 WINDOW_WIDTH (o) = psize;
|
|
|
3460 WINDOW_LEFT (p) = WINDOW_LEFT (o) + psize;
|
|
|
3461 }
|
|
|
3462 else
|
|
|
3463 {
|
|
|
3464 WINDOW_LEFT (p) = WINDOW_LEFT (o);
|
|
|
3465 WINDOW_WIDTH (p) = WINDOW_WIDTH (o);
|
|
|
3466 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (o) - psize;
|
|
|
3467 WINDOW_HEIGHT (o) = psize;
|
|
|
3468 WINDOW_TOP (p) = WINDOW_TOP (o) + psize;
|
|
|
3469 }
|
|
|
3470
|
|
|
3471 XFRAME (p->frame)->mirror_dirty = 1;
|
|
|
3472 /* do this last (after the window is completely initialized and
|
|
|
3473 the mirror-dirty flag is set) so that specifier recomputation
|
|
|
3474 caused as a result of this will work properly and not abort. */
|
|
|
3475 Fset_window_buffer (new, o->buffer);
|
|
|
3476 return new;
|
|
|
3477 }
|
|
|
3478
|
|
|
3479
|
|
|
3480 DEFUN ("enlarge-window", Fenlarge_window, Senlarge_window, 1, 3, "_p" /*
|
|
|
3481 Make the selected window ARG lines bigger.
|
|
|
3482 From program, optional second arg non-nil means grow sideways ARG columns,
|
|
|
3483 and optional third ARG specifies the window to change instead of the
|
|
|
3484 selected window.
|
|
|
3485 */ )
|
|
|
3486 (n, side, window)
|
|
|
3487 Lisp_Object n, side, window;
|
|
|
3488 {
|
|
|
3489 struct window *w = decode_window (window);
|
|
|
3490 CHECK_INT (n);
|
|
|
3491 change_window_height (w, XINT (n), !NILP (side));
|
|
|
3492 return Qnil;
|
|
|
3493 }
|
|
|
3494
|
|
|
3495 DEFUN ("shrink-window", Fshrink_window, Sshrink_window, 1, 3, "_p" /*
|
|
|
3496 Make the selected window ARG lines smaller.
|
|
|
3497 From program, optional second arg non-nil means shrink sideways ARG columns,
|
|
|
3498 and optional third ARG specifies the window to change instead of the
|
|
|
3499 selected window.
|
|
|
3500 */ )
|
|
|
3501 (n, side, window)
|
|
|
3502 Lisp_Object n, side, window;
|
|
|
3503 {
|
|
|
3504 struct window *w = decode_window (window);
|
|
|
3505 CHECK_INT (n);
|
|
|
3506 change_window_height (w, -XINT (n), !NILP (side));
|
|
|
3507 return Qnil;
|
|
|
3508 }
|
|
|
3509
|
|
|
3510 static int
|
|
|
3511 window_pixel_height (Lisp_Object window)
|
|
|
3512 {
|
|
|
3513 struct window *w = XWINDOW (window);
|
|
|
3514 return WINDOW_HEIGHT (w);
|
|
|
3515 }
|
|
|
3516
|
|
|
3517 static int
|
|
|
3518 window_pixel_height_to_char_height (struct window *w, int pixel_height,
|
|
|
3519 int include_gutters_p)
|
|
|
3520 {
|
|
|
3521 int avail_height;
|
|
|
3522 int defheight, defwidth;
|
|
|
3523 int char_height;
|
|
|
3524 Lisp_Object window;
|
|
|
3525
|
|
|
3526 XSETWINDOW (window, w);
|
|
|
3527
|
|
|
3528 avail_height = (pixel_height -
|
|
|
3529 (include_gutters_p ? 0 :
|
|
|
3530 window_top_gutter_height (w) +
|
|
|
3531 window_bottom_gutter_height (w)));
|
|
|
3532
|
|
|
3533 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3534
|
|
|
3535 char_height = avail_height / defheight;
|
|
|
3536
|
|
|
3537 /* It's the calling function's responsibility to check these values
|
|
|
3538 and make sure they're not out of range.
|
|
|
3539
|
|
|
3540 #### We need to go through the calling functions and actually
|
|
|
3541 do this. */
|
|
|
3542 if (char_height < 0)
|
|
|
3543 return 0;
|
|
|
3544 else
|
|
|
3545 return char_height;
|
|
|
3546 }
|
|
|
3547
|
|
|
3548 static int
|
|
|
3549 window_char_height_to_pixel_height (struct window *w, int char_height,
|
|
|
3550 int include_gutters_p)
|
|
|
3551 {
|
|
|
3552 int avail_height;
|
|
|
3553 int defheight, defwidth;
|
|
|
3554 int pixel_height;
|
|
|
3555
|
|
|
3556 Lisp_Object window;
|
|
|
3557
|
|
|
3558 XSETWINDOW (window, w);
|
|
|
3559
|
|
|
3560 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3561
|
|
|
3562 avail_height = char_height * defheight;
|
|
|
3563 pixel_height = (avail_height +
|
|
|
3564 (include_gutters_p ? 0 :
|
|
|
3565 window_top_gutter_height (w) +
|
|
|
3566 window_bottom_gutter_height (w)));
|
|
|
3567
|
|
|
3568 /* It's the calling function's responsibility to check these values
|
|
|
3569 and make sure they're not out of range.
|
|
|
3570
|
|
|
3571 #### We need to go through the calling functions and actually
|
|
|
3572 do this. */
|
|
|
3573 if (pixel_height < 0)
|
|
|
3574 return 0;
|
|
|
3575 else
|
|
|
3576 return pixel_height;
|
|
|
3577 }
|
|
|
3578
|
|
|
3579 /* Return number of default lines of text can fit in the window W.
|
|
|
3580 If INCLUDE_GUTTERS_P is 1, include "gutter" space (modeline plus
|
|
|
3581 horizontal scrollbar) in the space that is used for the calculation.
|
|
|
3582 */
|
|
|
3583 int
|
|
|
3584 window_char_height (struct window *w, int include_gutters_p)
|
|
|
3585 {
|
|
|
3586 return window_pixel_height_to_char_height (w, WINDOW_HEIGHT (w),
|
|
|
3587 include_gutters_p);
|
|
|
3588 }
|
|
|
3589
|
|
|
3590 /*
|
|
|
3591 * Return number of lines currently displayed in window w. If
|
|
|
3592 * end-of-buffer is displayed then the area below end-of-buffer is assume
|
|
|
3593 * to be blank lines of default height.
|
|
|
3594 * Does not include the modeline.
|
|
|
3595 */
|
|
|
3596 int
|
|
|
3597 window_displayed_height (struct window *w)
|
|
|
3598 {
|
|
|
3599 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3600 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
|
|
|
3601 int num_lines;
|
|
|
3602 Charcount end_pos = (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b)
|
|
|
3603 ? -1
|
|
|
3604 : w->window_end_pos[CURRENT_DISP]);
|
|
|
3605
|
|
|
3606 if (!Dynarr_length (dla))
|
|
|
3607 return window_char_height (w, 0);
|
|
|
3608
|
|
|
3609 num_lines = Dynarr_length (dla);
|
|
|
3610
|
|
|
3611 /* #### Document and assert somewhere that w->window_end_pos == -1
|
|
|
3612 indicates that end-of-buffer is being displayed. */
|
|
|
3613 if (end_pos == -1)
|
|
|
3614 {
|
|
|
3615 struct display_line *dl = Dynarr_atp (dla, 0);
|
|
|
3616 int ypos1 = dl->ypos + dl->descent;
|
|
|
3617 int ypos2 = WINDOW_TEXT_BOTTOM (w);
|
|
|
3618 Lisp_Object window;
|
|
|
3619 int defheight, defwidth;
|
|
|
3620
|
|
|
3621 XSETWINDOW (window, w);
|
|
|
3622
|
|
|
3623 if (dl->modeline)
|
|
|
3624 {
|
|
|
3625 num_lines--;
|
|
|
3626
|
|
|
3627 if (Dynarr_length (dla) == 1)
|
|
|
3628 ypos1 = WINDOW_TEXT_TOP (w);
|
|
|
3629 else
|
|
|
3630 {
|
|
|
3631 dl = Dynarr_atp (dla, Dynarr_length (dla) - 1);
|
|
|
3632 /* If this line is clipped then we know that there is no
|
|
|
3633 blank room between eob and the modeline. If we are
|
|
|
3634 scrolling on clipped lines just know off the clipped
|
|
|
3635 line and return .*/
|
|
|
3636 if (scroll_on_clipped_lines && dl->clip)
|
|
|
3637 return (num_lines - 1);
|
|
|
3638 ypos1 = dl->ypos + dl->descent - dl->clip;
|
|
|
3639 }
|
|
|
3640 }
|
|
|
3641
|
|
|
3642 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3643 /* #### This probably needs to know about the clipping area once a
|
|
|
3644 final definition is decided on. */
|
|
|
3645 num_lines += ((ypos2 - ypos1) / defheight);
|
|
|
3646 }
|
|
|
3647 else
|
|
|
3648 {
|
|
|
3649 if (num_lines > 1 && Dynarr_atp (dla, 0)->modeline)
|
|
|
3650 num_lines--;
|
|
|
3651
|
|
|
3652 if (scroll_on_clipped_lines
|
|
|
3653 && Dynarr_atp (dla, Dynarr_length (dla) - 1)->clip)
|
|
|
3654 num_lines--;
|
|
|
3655 }
|
|
|
3656
|
|
|
3657 return num_lines;
|
|
|
3658 }
|
|
|
3659
|
|
|
3660 static int
|
|
|
3661 window_pixel_width (Lisp_Object window)
|
|
|
3662 {
|
|
|
3663 struct window *w = XWINDOW (window);
|
|
|
3664 return WINDOW_WIDTH (w);
|
|
|
3665 }
|
|
|
3666
|
|
|
3667 static int
|
|
|
3668 window_pixel_width_to_char_width (struct window *w, int pixel_width,
|
|
|
3669 int include_margins_p)
|
|
|
3670 {
|
|
|
3671 int avail_width;
|
|
|
3672 int char_width;
|
|
|
3673 int defheight, defwidth;
|
|
|
3674 Lisp_Object window;
|
|
|
3675
|
|
|
3676 XSETWINDOW (window, w);
|
|
|
3677
|
|
|
3678 avail_width = (pixel_width -
|
|
|
3679 window_left_gutter_width (w, 0) -
|
|
|
3680 window_right_gutter_width (w, 0) -
|
|
|
3681 (include_margins_p ? 0 : window_left_margin_width (w)) -
|
|
|
3682 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
|
3683
|
|
|
3684 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3685
|
|
|
3686 char_width = (avail_width / defwidth);
|
|
|
3687
|
|
|
3688 /* It's the calling function's responsibility to check these values
|
|
|
3689 and make sure they're not out of range.
|
|
|
3690
|
|
|
3691 #### We need to go through the calling functions and actually
|
|
|
3692 do this. */
|
|
|
3693 if (char_width < 0)
|
|
|
3694 return 0;
|
|
|
3695 else
|
|
|
3696 return char_width;
|
|
|
3697 }
|
|
|
3698
|
|
|
3699 static int
|
|
|
3700 window_char_width_to_pixel_width (struct window *w, int char_width,
|
|
|
3701 int include_margins_p)
|
|
|
3702 {
|
|
|
3703 int avail_width;
|
|
|
3704 int pixel_width;
|
|
|
3705 int defheight, defwidth;
|
|
|
3706 Lisp_Object window;
|
|
|
3707
|
|
|
3708 XSETWINDOW (window, w);
|
|
|
3709
|
|
|
3710 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3711
|
|
|
3712 avail_width = char_width * defwidth;
|
|
|
3713 pixel_width = (avail_width +
|
|
|
3714 window_left_gutter_width (w, 0) +
|
|
|
3715 window_right_gutter_width (w, 0) +
|
|
|
3716 (include_margins_p ? 0 : window_left_margin_width (w)) +
|
|
|
3717 (include_margins_p ? 0 : window_right_margin_width (w)));
|
|
|
3718
|
|
|
3719 /* It's the calling function's responsibility to check these values
|
|
|
3720 and make sure they're not out of range.
|
|
|
3721
|
|
|
3722 #### We need to go through the calling functions and actually
|
|
|
3723 do this. */
|
|
|
3724 if (pixel_width < 0)
|
|
|
3725 return 0;
|
|
|
3726 else
|
|
|
3727 return pixel_width;
|
|
|
3728 }
|
|
|
3729
|
|
|
3730 /* This returns the usable space which doesn't include space needed by
|
|
|
3731 scrollbars or divider lines. */
|
|
|
3732 int
|
|
|
3733 window_char_width (struct window *w, int include_margins_p)
|
|
|
3734 {
|
|
|
3735 return window_pixel_width_to_char_width (w, WINDOW_WIDTH (w),
|
|
|
3736 include_margins_p);
|
|
|
3737 }
|
|
|
3738
|
|
|
3739 #define MINSIZE(w) \
|
|
|
3740 (widthflag \
|
|
|
3741 ? window_min_width * defwidth \
|
|
|
3742 : (defheight * (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)))
|
|
|
3743
|
|
|
3744 #define CURBEG(w) \
|
|
|
3745 *(widthflag ? (int *) &WINDOW_LEFT (w) : (int *) &WINDOW_TOP (w))
|
|
|
3746
|
|
|
3747 #define CURSIZE(w) \
|
|
|
3748 *(widthflag ? (int *) &WINDOW_WIDTH (w) : (int *) &WINDOW_HEIGHT (w))
|
|
|
3749
|
|
|
3750 #define CURCHARSIZE(w) \
|
|
|
3751 (widthflag ? window_char_width (w, 0) : window_char_height (w, 1))
|
|
|
3752
|
|
|
3753 #define MINCHARSIZE(window) \
|
|
|
3754 (widthflag ? window_min_width : MINI_WINDOW_P (XWINDOW (window)) \
|
|
|
3755 ? 1 : window_min_height)
|
|
|
3756
|
|
|
3757 /* Unlike set_window_pixheight, this function
|
|
|
3758 also changes the heights of the siblings so as to
|
|
|
3759 keep everything consistent. */
|
|
|
3760
|
|
|
3761 static void
|
|
|
3762 change_window_height (struct window *win, int delta, int widthflag)
|
|
|
3763 {
|
|
|
3764 Lisp_Object parent;
|
|
|
3765 Lisp_Object window = Qnil;
|
|
|
3766 struct window *w;
|
|
|
3767 struct frame *f;
|
|
|
3768 int *sizep;
|
|
|
3769 int (*sizefun) (Lisp_Object) = (widthflag
|
|
|
3770 ? window_pixel_width
|
|
|
3771 : window_pixel_height);
|
|
|
3772 void (*setsizefun) (Lisp_Object, int, int) = (widthflag
|
|
|
3773 ? set_window_pixwidth
|
|
|
3774 : set_window_pixheight);
|
|
|
3775 int dim;
|
|
|
3776 int defheight, defwidth;
|
|
|
3777
|
|
|
3778 if (delta == 0)
|
|
|
3779 return;
|
|
|
3780
|
|
|
3781 check_min_window_sizes ();
|
|
|
3782
|
|
|
3783 XSETWINDOW (window, win);
|
|
|
3784 f = XFRAME (win->frame);
|
|
|
3785 if (EQ (window, FRAME_ROOT_WINDOW (f)))
|
|
|
3786 error ("Won't change only window");
|
|
|
3787
|
|
|
3788 /* #### This is very likely incorrect and instead the char_to_pixel_
|
|
|
3789 functions should be called. */
|
|
|
3790 default_face_height_and_width (window, &defheight, &defwidth);
|
|
|
3791
|
|
|
3792 while (1)
|
|
|
3793 {
|
|
|
3794 w = XWINDOW (window);
|
|
|
3795 parent = w->parent;
|
|
|
3796 if (NILP (parent))
|
|
|
3797 {
|
|
|
3798 if (widthflag)
|
|
|
3799 error ("No other window to side of this one");
|
|
|
3800 break;
|
|
|
3801 }
|
|
|
3802 if (widthflag
|
|
|
3803 ? !NILP (XWINDOW (parent)->hchild)
|
|
|
3804 : !NILP (XWINDOW (parent)->vchild))
|
|
|
3805 break;
|
|
|
3806 window = parent;
|
|
|
3807 }
|
|
|
3808
|
|
|
3809 sizep = &CURSIZE (w);
|
|
|
3810 dim = CURCHARSIZE (w);
|
|
|
3811
|
|
|
3812 if ((dim + delta) < MINCHARSIZE (window))
|
|
|
3813 {
|
|
|
3814 if (MINI_WINDOW_P (XWINDOW (window)))
|
|
|
3815 return;
|
|
|
3816 else if (!NILP (parent))
|
|
|
3817 {
|
|
|
3818 Fdelete_window (window, Qnil);
|
|
|
3819 return;
|
|
|
3820 }
|
|
|
3821 }
|
|
|
3822
|
|
|
3823 delta *= (widthflag ? defwidth : defheight);
|
|
|
3824
|
|
|
3825 {
|
|
|
3826 int maxdelta;
|
|
|
3827
|
|
|
3828 maxdelta = ((!NILP (parent))
|
|
|
3829 ? (*sizefun) (parent) - *sizep
|
|
|
3830 : ((!NILP (w->next))
|
|
|
3831 ? (*sizefun) (w->next) - MINSIZE (w->next)
|
|
|
3832 : ((!NILP (w->prev))
|
|
|
3833 ? (*sizefun) (w->prev) - MINSIZE (w->prev)
|
|
|
3834 /* This is a frame with only one window,
|
|
|
3835 a minibuffer-only or a minibufferless frame. */
|
|
|
3836 : (delta = 0))));
|
|
|
3837
|
|
|
3838 if (delta > maxdelta)
|
|
|
3839 /* This case traps trying to make the minibuffer
|
|
|
3840 the full frame, or make the only window aside from the
|
|
|
3841 minibuffer the full frame. */
|
|
|
3842 delta = maxdelta;
|
|
|
3843
|
|
|
3844 if (delta == 0)
|
|
|
3845 return;
|
|
|
3846
|
|
|
3847 #if 0 /* FSFmacs */
|
|
|
3848 /* #### Chuck: is this correct? */
|
|
|
3849 if (*sizep + delta < MINSIZE (window))
|
|
|
3850 {
|
|
|
3851 Fdelete_window (window);
|
|
|
3852 return;
|
|
|
3853 }
|
|
|
3854 #endif
|
|
|
3855 }
|
|
|
3856
|
|
|
3857 if (!NILP (w->next) &&
|
|
|
3858 (*sizefun) (w->next) - delta >= (int) MINSIZE (w->next))
|
|
|
3859 {
|
|
|
3860 CURBEG (XWINDOW (w->next)) += delta;
|
|
|
3861 (*setsizefun) (w->next, (*sizefun) (w->next) - delta, 0);
|
|
|
3862 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
3863 }
|
|
|
3864 else if (!NILP (w->prev) &&
|
|
|
3865 (*sizefun) (w->prev) - delta >= (int) MINSIZE (w->prev))
|
|
|
3866 {
|
|
|
3867 (*setsizefun) (w->prev, (*sizefun) (w->prev) - delta, 0);
|
|
|
3868 CURBEG (w) -= delta;
|
|
|
3869 (*setsizefun) (window, *sizep + delta, 0);
|
|
|
3870 }
|
|
|
3871 else
|
|
|
3872 {
|
|
|
3873 int delta1;
|
|
|
3874 int opht = (*sizefun) (parent);
|
|
|
3875
|
|
|
3876 /* If trying to grow this window to or beyond size of the parent,
|
|
|
3877 make delta1 so big that, on shrinking back down,
|
|
|
3878 all the siblings end up with less than one line and are deleted. */
|
|
|
3879 if (opht <= *sizep + delta)
|
|
|
3880 delta1 = opht * opht * 2;
|
|
|
3881 /* Otherwise, make delta1 just right so that if we add delta1
|
|
|
3882 lines to this window and to the parent, and then shrink
|
|
|
3883 the parent back to its original size, the new proportional
|
|
|
3884 size of this window will increase by delta. */
|
|
|
3885 else
|
|
|
3886 delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100);
|
|
|
3887
|
|
|
3888 /* Add delta1 lines or columns to this window, and to the parent,
|
|
|
3889 keeping things consistent while not affecting siblings. */
|
|
|
3890 CURSIZE (XWINDOW (parent)) = opht + delta1;
|
|
|
3891 (*setsizefun) (window, *sizep + delta1, 0);
|
|
|
3892
|
|
|
3893 /* Squeeze out delta1 lines or columns from our parent,
|
|
|
3894 shriking this window and siblings proportionately.
|
|
|
3895 This brings parent back to correct size.
|
|
|
3896 Delta1 was calculated so this makes this window the desired size,
|
|
|
3897 taking it all out of the siblings. */
|
|
|
3898 (*setsizefun) (parent, opht, 0);
|
|
|
3899 }
|
|
|
3900
|
|
|
3901 SET_LAST_MODIFIED (w, 0);
|
|
|
3902 SET_LAST_FACECHANGE (w);
|
|
|
3903 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
3904 }
|
|
|
3905 #undef MINSIZE
|
|
|
3906 #undef CURBEG
|
|
|
3907 #undef CURSIZE
|
|
|
3908 #undef CURCHARSIZE
|
|
|
3909 #undef MINCHARSIZE
|
|
|
3910
|
|
|
3911
|
|
|
3912
|
|
|
3913 /* Scroll contents of window WINDOW up N lines. */
|
|
|
3914 void
|
|
|
3915 window_scroll (Lisp_Object window, Lisp_Object n, int direction,
|
|
|
3916 Error_behavior errb)
|
|
|
3917 {
|
|
|
3918 struct window *w = XWINDOW (window);
|
|
|
3919 struct buffer *b = XBUFFER (w->buffer);
|
|
|
3920 int selected = EQ (window, Fselected_window (Qnil));
|
|
|
3921 int value = 0;
|
|
|
3922 Lisp_Object point, tem;
|
|
|
3923
|
|
|
3924 if (selected)
|
|
|
3925 point = make_int (BUF_PT (b));
|
|
|
3926 else
|
|
|
3927 {
|
|
|
3928 Bufpos pos = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
3929
|
|
|
3930 if (pos < BUF_BEGV (b))
|
|
|
3931 pos = BUF_BEGV (b);
|
|
|
3932 else if (pos > BUF_ZV (b))
|
|
|
3933 pos = BUF_ZV (b);
|
|
|
3934
|
|
|
3935 point = make_int (pos);
|
|
|
3936 }
|
|
|
3937
|
|
|
3938 /* Always set force_start so that redisplay_window will run
|
|
|
3939 thw window-scroll-functions. */
|
|
|
3940 w->force_start = 1;
|
|
|
3941
|
|
|
3942 /* #### When the fuck does this happen? I'm so glad that history has
|
|
|
3943 completely documented the behavior of the scrolling functions under
|
|
|
3944 all circumstances. */
|
|
|
3945 tem = Fpos_visible_in_window_p (point, window);
|
|
|
3946 if (NILP (tem))
|
|
|
3947 {
|
|
|
3948 Fvertical_motion (make_int (-window_char_height (w, 0) / 2), window);
|
|
|
3949 Fset_marker (w->start[CURRENT_DISP], point, w->buffer);
|
|
|
3950 w->start_at_line_beg = beginning_of_line_p (b, XINT (point));
|
|
|
3951 MARK_WINDOWS_CHANGED (w);
|
|
|
3952 }
|
|
|
3953
|
|
|
3954 if (!NILP (n))
|
|
|
3955 {
|
|
|
3956 if (EQ (n, Qminus))
|
|
|
3957 direction *= -1;
|
|
|
3958 else
|
|
|
3959 {
|
|
|
3960 n = Fprefix_numeric_value (n);
|
|
|
3961 value = XINT (n) * direction;
|
|
|
3962
|
|
|
3963 if (!value)
|
|
|
3964 return; /* someone just made a pointless call */
|
|
|
3965 }
|
|
|
3966 }
|
|
|
3967
|
|
|
3968 /* If the user didn't specify how far to scroll then we have to figure it
|
|
|
3969 out by ourselves. */
|
|
|
3970 if (NILP (n) || EQ (n, Qminus))
|
|
|
3971 {
|
|
|
3972 /* Going forwards is easy. If that is what we are doing then just
|
|
|
3973 set value and the section which handles the user specifying a
|
|
|
3974 positive value will work. */
|
|
|
3975 if (direction == 1)
|
|
|
3976 {
|
|
|
3977 value = window_displayed_height (w) - next_screen_context_lines;
|
|
|
3978 value = (value < 1 ? 1 : value);
|
|
|
3979 }
|
|
|
3980
|
|
|
3981 /* Going backwards is hard. We can't use the same loop used if the
|
|
|
3982 user specified a negative value because we care about
|
|
|
3983 next_screen_context_lines. In a variable height world you don't
|
|
|
3984 know how many lines above you can actually be displayed and still
|
|
|
3985 have the context lines appear. So we leave value set to 0 and add
|
|
|
3986 a separate section to deal with this. */
|
|
|
3987
|
|
|
3988 }
|
|
|
3989
|
|
|
3990 if (direction == 1 && !value)
|
|
|
3991 {
|
|
|
3992 return;
|
|
|
3993 }
|
|
|
3994 else if (value > 0)
|
|
|
3995 {
|
|
|
3996 int vtarget;
|
|
|
3997 Bufpos startp, old_start;
|
|
|
3998
|
|
|
3999 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4000 startp = vmotion (w, old_start, value, &vtarget);
|
|
|
4001
|
|
|
4002 if (vtarget < value &&
|
|
|
4003 (w->window_end_pos[CURRENT_DISP] == -1
|
|
|
4004 || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b))))
|
|
|
4005 {
|
|
|
4006 maybe_signal_error (Qend_of_buffer, Qnil, Qwindow, errb);
|
|
|
4007 return;
|
|
|
4008 }
|
|
|
4009 else
|
|
|
4010 {
|
|
|
4011 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4012 w->buffer);
|
|
|
4013 w->force_start = 1;
|
|
|
4014 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4015 MARK_WINDOWS_CHANGED (w);
|
|
|
4016
|
|
|
4017 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4018 {
|
|
|
4019 if (selected)
|
|
|
4020 BUF_SET_PT (b, startp);
|
|
|
4021 else
|
|
|
4022 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4023 make_int (startp),
|
|
|
4024 w->buffer);
|
|
|
4025 }
|
|
|
4026 }
|
|
|
4027 }
|
|
|
4028 else if (value < 0)
|
|
|
4029 {
|
|
|
4030 int vtarget;
|
|
|
4031 Bufpos startp, old_start;
|
|
|
4032
|
|
|
4033 old_start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4034 startp = vmotion (w, old_start, value, &vtarget);
|
|
|
4035
|
|
|
4036 if (vtarget > value
|
|
|
4037 && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4038 {
|
|
|
4039 maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
|
4040 return;
|
|
|
4041 }
|
|
|
4042 else
|
|
|
4043 {
|
|
|
4044 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4045 w->buffer);
|
|
|
4046 w->force_start = 1;
|
|
|
4047 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4048 MARK_WINDOWS_CHANGED (w);
|
|
|
4049
|
|
|
4050 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4051 {
|
|
|
4052 Bufpos new_point;
|
|
|
4053
|
|
|
4054 if (MINI_WINDOW_P (w))
|
|
|
4055 new_point = startp;
|
|
|
4056 else
|
|
|
4057 new_point = start_of_last_line (w, startp);
|
|
|
4058
|
|
|
4059 if (selected)
|
|
|
4060 BUF_SET_PT (b, new_point);
|
|
|
4061 else
|
|
|
4062 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4063 make_int (new_point),
|
|
|
4064 w->buffer);
|
|
|
4065 }
|
|
|
4066 }
|
|
|
4067 }
|
|
|
4068 else /* value == 0 && direction == -1 */
|
|
|
4069 {
|
|
|
4070 if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
|
|
|
4071 {
|
|
|
4072 maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
|
|
|
4073 return;
|
|
|
4074 }
|
|
|
4075 else
|
|
|
4076 {
|
|
|
4077 int vtarget;
|
|
|
4078 int movement = next_screen_context_lines - 1;
|
|
|
4079 Bufpos old_startp = marker_position (w->start[CURRENT_DISP]);
|
|
|
4080 Bufpos bottom = vmotion (w, old_startp, movement, &vtarget);
|
|
|
4081 Bufpos startp =
|
|
|
4082 start_with_point_on_display_line (w, bottom,
|
|
|
4083 -1 - (movement - vtarget));
|
|
|
4084
|
|
|
4085 if (startp >= old_startp)
|
|
|
4086 startp = vmotion (w, old_startp, -1, NULL);
|
|
|
4087
|
|
|
4088 set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
|
|
|
4089 w->buffer);
|
|
|
4090 w->force_start = 1;
|
|
|
4091 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4092 MARK_WINDOWS_CHANGED (w);
|
|
|
4093
|
|
|
4094 if (!point_would_be_visible (w, startp, XINT (point)))
|
|
|
4095 {
|
|
|
4096 Bufpos new_point = start_of_last_line (w, startp);
|
|
|
4097
|
|
|
4098 if (selected)
|
|
|
4099 BUF_SET_PT (b, new_point);
|
|
|
4100 else
|
|
|
4101 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
4102 make_int (new_point),
|
|
|
4103 w->buffer);
|
|
|
4104 }
|
|
|
4105 }
|
|
|
4106 }
|
|
|
4107
|
|
|
4108 }
|
|
|
4109
|
|
|
4110 DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "_P" /*
|
|
|
4111 Scroll text of current window upward ARG lines; or near full screen if no ARG.
|
|
|
4112 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
|
4113 Negative ARG means scroll downward.
|
|
|
4114 When calling from a program, supply a number as argument or nil.
|
|
|
4115 */ )
|
|
|
4116 (n)
|
|
|
4117 Lisp_Object n;
|
|
|
4118 {
|
|
|
4119 window_scroll (Fselected_window (Qnil), n, 1, ERROR_ME);
|
|
|
4120 return Qnil;
|
|
|
4121 }
|
|
|
4122
|
|
|
4123 DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "_P" /*
|
|
|
4124 Scroll text of current window downward ARG lines; or near full screen if no ARG.
|
|
|
4125 A near full screen is `next-screen-context-lines' less than a full screen.
|
|
|
4126 Negative ARG means scroll upward.
|
|
|
4127 When calling from a program, supply a number as argument or nil.
|
|
|
4128 */ )
|
|
|
4129 (n)
|
|
|
4130 Lisp_Object n;
|
|
|
4131 {
|
|
|
4132 window_scroll (Fselected_window (Qnil), n, -1, ERROR_ME);
|
|
|
4133 return Qnil;
|
|
|
4134 }
|
|
|
4135
|
|
|
4136 DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, Sother_window_for_scrolling, 0, 0, 0 /*
|
|
|
4137 Return the other window for \"other window scroll\" commands.
|
|
|
4138 If in the minibuffer, `minibuffer-scroll-window' if non-nil
|
|
|
4139 specifies the window.
|
|
|
4140 If `other-window-scroll-buffer' is non-nil, a window
|
|
|
4141 showing that buffer is used.
|
|
|
4142 */ )
|
|
|
4143 ()
|
|
|
4144 {
|
|
|
4145 Lisp_Object window;
|
|
|
4146 Lisp_Object selected_window = Fselected_window (Qnil);
|
|
|
4147
|
|
|
4148 if (MINI_WINDOW_P (XWINDOW (selected_window))
|
|
|
4149 && !NILP (Vminibuf_scroll_window))
|
|
|
4150 window = Vminibuf_scroll_window;
|
|
|
4151 /* If buffer is specified, scroll that buffer. */
|
|
|
4152 else if (!NILP (Vother_window_scroll_buffer))
|
|
|
4153 {
|
|
|
4154 window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil, Qnil);
|
|
|
4155 if (NILP (window))
|
|
|
4156 window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil);
|
|
|
4157 }
|
|
|
4158 else
|
|
|
4159 {
|
|
|
4160 /* Nothing specified; look for a neighboring window on the same
|
|
|
4161 frame. */
|
|
|
4162 window = Fnext_window (selected_window, Qnil, Qnil, Qnil);
|
|
|
4163
|
|
|
4164 if (EQ (window, selected_window))
|
|
|
4165 /* That didn't get us anywhere; look for a window on another
|
|
|
4166 visible frame. */
|
|
|
4167 do
|
|
|
4168 window = Fnext_window (window, Qnil, Qt, Qnil);
|
|
|
4169 while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window))))
|
|
|
4170 && ! EQ (window, selected_window));
|
|
|
4171 }
|
|
|
4172
|
|
|
4173 CHECK_LIVE_WINDOW (window);
|
|
|
4174
|
|
|
4175 if (EQ (window, selected_window))
|
|
|
4176 error ("There is no other window");
|
|
|
4177
|
|
|
4178 return window;
|
|
|
4179 }
|
|
|
4180
|
|
|
4181 DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "_P" /*
|
|
|
4182 Scroll next window upward ARG lines; or near full frame if no ARG.
|
|
|
4183 The next window is the one below the current one; or the one at the top
|
|
|
4184 if the current one is at the bottom. Negative ARG means scroll downward.
|
|
|
4185 When calling from a program, supply a number as argument or nil.
|
|
|
4186
|
|
|
4187 If in the minibuffer, `minibuf-scroll-window' if non-nil
|
|
|
4188 specifies the window to scroll.
|
|
|
4189 If `other-window-scroll-buffer' is non-nil, scroll the window
|
|
|
4190 showing that buffer, popping the buffer up if necessary.
|
|
|
4191 */ )
|
|
|
4192 (n)
|
|
|
4193 Lisp_Object n;
|
|
|
4194 {
|
|
|
4195 window_scroll (Fother_window_for_scrolling (), n, 1, ERROR_ME);
|
|
|
4196 return Qnil;
|
|
|
4197 }
|
|
|
4198
|
|
|
4199 DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 0, 1, "_P" /*
|
|
|
4200 Scroll selected window display ARG columns left.
|
|
|
4201 Default for ARG is window width minus 2.
|
|
|
4202 */ )
|
|
|
4203 (arg)
|
|
|
4204 Lisp_Object arg;
|
|
|
4205 {
|
|
|
4206 Lisp_Object window = Fselected_window (Qnil);
|
|
|
4207 struct window *w = XWINDOW (window);
|
|
|
4208
|
|
|
4209 if (NILP (arg))
|
|
|
4210 arg = make_int (window_char_width (w, 0) - 2);
|
|
|
4211 else
|
|
|
4212 arg = Fprefix_numeric_value (arg);
|
|
|
4213
|
|
|
4214 return
|
|
|
4215 Fset_window_hscroll (window, make_int (w->hscroll + XINT (arg)));
|
|
|
4216 }
|
|
|
4217
|
|
|
4218 DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 0, 1, "_P" /*
|
|
|
4219 Scroll selected window display ARG columns right.
|
|
|
4220 Default for ARG is window width minus 2.
|
|
|
4221 */ )
|
|
|
4222 (arg)
|
|
|
4223 Lisp_Object arg;
|
|
|
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
|
|
|
4233 return
|
|
|
4234 Fset_window_hscroll (window, make_int (w->hscroll - XINT (arg)));
|
|
|
4235 }
|
|
|
4236
|
|
|
4237 DEFUN ("recenter", Frecenter, Srecenter, 0, 2, "_P" /*
|
|
|
4238 Center point in WINDOW and redisplay frame. With ARG, put point on line ARG.
|
|
|
4239 The desired position of point is always relative to the window.
|
|
|
4240 Just C-u as prefix means put point in the center of the window.
|
|
|
4241 No arg (i.e., it is nil) erases the entire frame and then
|
|
|
4242 redraws with point in the center of the window.
|
|
|
4243 If WINDOW is nil, the selected window is used.
|
|
|
4244 */ )
|
|
|
4245 (n, window)
|
|
|
4246 Lisp_Object n, window;
|
|
|
4247 {
|
|
|
4248 struct window *w;
|
|
|
4249 struct buffer *b;
|
|
|
4250 Bufpos startp;
|
|
|
4251 Bufpos opoint;
|
|
|
4252
|
|
|
4253 if (NILP (window))
|
|
|
4254 window = Fselected_window (Qnil);
|
|
|
4255 else
|
|
|
4256 CHECK_WINDOW (window);
|
|
|
4257 w = XWINDOW (window);
|
|
|
4258 b = XBUFFER (w->buffer);
|
|
|
4259
|
|
|
4260 opoint = BUF_PT (b);
|
|
|
4261
|
|
|
4262 if (NILP (n) || CONSP (n))
|
|
|
4263 {
|
|
|
4264 struct frame *f = XFRAME (w->frame);
|
|
|
4265
|
|
|
4266 if (NILP (n))
|
|
|
4267 {
|
|
|
4268 MARK_FRAME_CHANGED (f);
|
|
|
4269 SET_FRAME_CLEAR (f);
|
|
|
4270 }
|
|
|
4271
|
|
|
4272 startp = start_with_line_at_pixpos (w, opoint, window_half_pixpos (w));
|
|
|
4273 }
|
|
|
4274 else
|
|
|
4275 {
|
|
|
4276 n = Fprefix_numeric_value (n);
|
|
|
4277 CHECK_INT (n);
|
|
|
4278
|
|
|
4279 startp = start_with_point_on_display_line (w, opoint, XINT (n));
|
|
|
4280 }
|
|
|
4281
|
|
|
4282 Fset_marker (w->start[CURRENT_DISP], make_int (startp), w->buffer);
|
|
|
4283
|
|
|
4284 w->start_at_line_beg = beginning_of_line_p (b, startp);
|
|
|
4285 w->force_start = 1;
|
|
|
4286 MARK_WINDOWS_CHANGED (w);
|
|
|
4287 return Qnil;
|
|
|
4288 }
|
|
|
4289
|
|
|
4290 DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line,
|
|
|
4291 1, 2, "_P" /*
|
|
|
4292 Position point relative to WINDOW.
|
|
|
4293 With no argument, position text at center of window.
|
|
|
4294 An argument specifies window line; zero means top of window,
|
|
|
4295 negative means relative to bottom of window.
|
|
|
4296 If WINDOW is nil, the selected window is used.
|
|
|
4297 */ )
|
|
|
4298 (arg, window)
|
|
|
4299 Lisp_Object arg, window;
|
|
|
4300 {
|
|
|
4301 struct window *w;
|
|
|
4302 struct buffer *b;
|
|
|
4303 int height;
|
|
|
4304 Bufpos start, new_point;
|
|
|
4305 int selected;
|
|
|
4306
|
|
|
4307 if (NILP (window))
|
|
|
4308 window = Fselected_window (Qnil);
|
|
|
4309 else
|
|
|
4310 CHECK_WINDOW (window);
|
|
|
4311 w = XWINDOW (window);
|
|
|
4312 b = XBUFFER (w->buffer);
|
|
|
4313
|
|
|
4314 height = window_displayed_height (w);
|
|
|
4315 selected = EQ (window, Fselected_window (w->frame));
|
|
|
4316
|
|
|
4317 if (NILP (arg))
|
|
|
4318 {
|
|
|
4319 int retval;
|
|
|
4320
|
|
|
4321 if (XINT (w->last_modified[CURRENT_DISP]) >= BUF_MODIFF (b)
|
|
|
4322 && XINT (w->last_facechange[CURRENT_DISP]) >= BUF_FACECHANGE (b))
|
|
|
4323 {
|
|
|
4324 new_point = point_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4325
|
|
|
4326 if (selected)
|
|
|
4327 BUF_SET_PT (b, new_point);
|
|
|
4328 else
|
|
|
4329 Fset_window_point (window, make_int (new_point));
|
|
|
4330
|
|
|
4331 retval = line_at_center (w, CURRENT_DISP, 0, 0);
|
|
|
4332 }
|
|
|
4333 else
|
|
|
4334 {
|
|
|
4335 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4336 if (start < BUF_BEGV (b))
|
|
|
4337 start = BUF_BEGV (b);
|
|
|
4338 else if (start > BUF_ZV (b))
|
|
|
4339 start = BUF_ZV (b);
|
|
|
4340
|
|
|
4341 if (selected)
|
|
|
4342 new_point = BUF_PT (b);
|
|
|
4343 else
|
|
|
4344 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4345
|
|
|
4346 new_point = point_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4347
|
|
|
4348 if (selected)
|
|
|
4349 BUF_SET_PT (b, new_point);
|
|
|
4350 else
|
|
|
4351 Fset_window_point (window, make_int (new_point));
|
|
|
4352
|
|
|
4353 retval = line_at_center (w, CMOTION_DISP, start, BUF_PT (b));
|
|
|
4354 }
|
|
|
4355
|
|
|
4356 return (make_int (retval));
|
|
|
4357 }
|
|
|
4358 else
|
|
|
4359 {
|
|
|
4360 /* #### Is this going to work right when at eob? */
|
|
|
4361 arg = Fprefix_numeric_value (arg);
|
|
|
4362 if (XINT (arg) < 0)
|
|
|
4363 XSETINT (arg, XINT (arg) + height);
|
|
|
4364 }
|
|
|
4365
|
|
|
4366 start = marker_position (w->start[CURRENT_DISP]);
|
|
|
4367 if (start < BUF_BEGV (b) || start > BUF_ZV (b))
|
|
|
4368 {
|
|
|
4369 if (selected)
|
|
|
4370 new_point = BUF_PT (b);
|
|
|
4371 else
|
|
|
4372 new_point = marker_position (w->pointm[CURRENT_DISP]);
|
|
|
4373
|
|
|
4374 new_point = vmotion (XWINDOW (window), new_point, -height / 2, 0);
|
|
|
4375
|
|
|
4376 if (selected)
|
|
|
4377 BUF_SET_PT (b, new_point);
|
|
|
4378 else
|
|
|
4379 Fset_window_point (window, make_int (new_point));
|
|
|
4380
|
|
|
4381 Fset_marker (w->start[CURRENT_DISP], make_int (new_point),
|
|
|
4382 w->buffer);
|
|
|
4383 w->start_at_line_beg = beginning_of_line_p (b, new_point);
|
|
|
4384 w->force_start = 1;
|
|
|
4385 }
|
|
|
4386 else
|
|
|
4387 {
|
|
|
4388 if (selected)
|
|
|
4389 BUF_SET_PT (b, start);
|
|
|
4390 else
|
|
|
4391 Fset_window_point (window, make_int (start));
|
|
|
4392 }
|
|
|
4393
|
|
|
4394 if (selected)
|
|
|
4395 return Fvertical_motion (arg, window);
|
|
|
4396 else
|
|
|
4397 {
|
|
|
4398 int vpos;
|
|
|
4399 new_point = vmotion (XWINDOW (window),
|
|
|
4400 marker_position (w->pointm[CURRENT_DISP]),
|
|
|
4401 XINT (arg), &vpos);
|
|
|
4402 Fset_window_point (window, make_int (new_point));
|
|
|
4403 return make_int (vpos);
|
|
|
4404 }
|
|
|
4405 }
|
|
|
4406
|
|
|
4407
|
|
|
4408 static int
|
|
|
4409 map_windows_1 (Lisp_Object window,
|
|
|
4410 int (*mapfun) (struct window *w, void *closure),
|
|
|
4411 void *closure)
|
|
|
4412 {
|
|
|
4413 int retval;
|
|
|
4414
|
|
|
4415 for (; !NILP (window); window = XWINDOW (window)->next)
|
|
|
4416 {
|
|
|
4417 struct window *w = XWINDOW (window);
|
|
|
4418 if (!NILP (w->vchild))
|
|
|
4419 retval = map_windows_1 (w->vchild, mapfun, closure);
|
|
|
4420 else if (!NILP (w->hchild))
|
|
|
4421 retval = map_windows_1 (w->hchild, mapfun, closure);
|
|
|
4422 else
|
|
|
4423 retval = (mapfun) (w, closure);
|
|
|
4424 if (retval)
|
|
|
4425 return retval;
|
|
|
4426 }
|
|
|
4427
|
|
|
4428 return 0;
|
|
|
4429 }
|
|
|
4430
|
|
|
4431 /* Map MAPFUN over the windows in F. CLOSURE is passed to each
|
|
|
4432 invocation of MAPFUN. If any invocation of MAPFUN returns non-zero,
|
|
|
4433 the mapping is halted and the value returned is the return value
|
|
|
4434 of map_windows(). Otherwise, map_windows() maps over all windows
|
|
|
4435 in F and returns 0. */
|
|
|
4436
|
|
|
4437 int
|
|
|
4438 map_windows (struct frame *f, int (*mapfun) (struct window *w, void *closure),
|
|
|
4439 void *closure)
|
|
|
4440 {
|
|
|
4441 return map_windows_1 (FRAME_ROOT_WINDOW (f), mapfun, closure);
|
|
|
4442 }
|
|
|
4443
|
|
|
4444
|
|
|
4445 static void
|
|
|
4446 modeline_shadow_thickness_changed (Lisp_Object specifier, struct window *w,
|
|
|
4447 Lisp_Object oldval)
|
|
|
4448 {
|
|
|
4449 w->shadow_thickness_changed = 1;
|
|
|
4450 MARK_WINDOWS_CHANGED (w);
|
|
|
4451 }
|
|
|
4452
|
|
|
4453 /* also used in scrollbar.c */
|
|
|
4454 void
|
|
|
4455 some_window_value_changed (Lisp_Object specifier, struct window *w,
|
|
|
4456 Lisp_Object oldval)
|
|
|
4457 {
|
|
|
4458 MARK_WINDOWS_CHANGED (w);
|
|
|
4459 }
|
|
|
4460
|
|
|
4461 #ifdef MEMORY_USAGE_STATS
|
|
|
4462
|
|
|
4463 struct window_stats
|
|
|
4464 {
|
|
|
4465 int face;
|
|
|
4466 int glyph;
|
|
|
4467 #ifdef HAVE_SCROLLBARS
|
|
|
4468 int scrollbar;
|
|
|
4469 #endif
|
|
|
4470 int line_start;
|
|
|
4471 int other_redisplay;
|
|
|
4472 int other;
|
|
|
4473 };
|
|
|
4474
|
|
|
4475 static void
|
|
|
4476 compute_window_mirror_usage (struct window_mirror *mir,
|
|
|
4477 struct window_stats *stats,
|
|
|
4478 struct overhead_stats *ovstats)
|
|
|
4479 {
|
|
|
4480 if (!mir)
|
|
|
4481 return;
|
|
|
4482 stats->other += malloced_storage_size (mir, sizeof (struct window_mirror),
|
|
|
4483 ovstats);
|
|
|
4484 #ifdef HAVE_SCROLLBARS
|
|
|
4485 {
|
|
|
4486 struct device *d = XDEVICE (FRAME_DEVICE (mir->frame));
|
|
|
4487
|
|
|
4488 stats->scrollbar +=
|
|
|
4489 compute_scrollbar_instance_usage (d, mir->scrollbar_vertical_instance,
|
|
|
4490 ovstats);
|
|
|
4491 stats->scrollbar +=
|
|
|
4492 compute_scrollbar_instance_usage (d, mir->scrollbar_horizontal_instance,
|
|
|
4493 ovstats);
|
|
|
4494 }
|
|
|
4495 #endif
|
|
|
4496 stats->other_redisplay +=
|
|
|
4497 compute_display_line_dynarr_usage (mir->current_display_lines, ovstats);
|
|
|
4498 stats->other_redisplay +=
|
|
|
4499 compute_display_line_dynarr_usage (mir->desired_display_lines, ovstats);
|
|
|
4500 }
|
|
|
4501
|
|
|
4502 static void
|
|
|
4503 compute_window_usage (struct window *w, struct window_stats *stats,
|
|
|
4504 struct overhead_stats *ovstats)
|
|
|
4505 {
|
|
|
4506 memset (stats, 0, sizeof (*stats));
|
|
|
4507 stats->other += malloced_storage_size (w, sizeof (struct window), ovstats);
|
|
|
4508 stats->face += compute_face_cachel_usage (w->face_cachels, ovstats);
|
|
|
4509 stats->glyph += compute_glyph_cachel_usage (w->glyph_cachels, ovstats);
|
|
|
4510 stats->line_start +=
|
|
|
4511 compute_line_start_cache_dynarr_usage (w->line_start_cache, ovstats);
|
|
|
4512 compute_window_mirror_usage (find_window_mirror (w), stats, ovstats);
|
|
|
4513 }
|
|
|
4514
|
|
|
4515 DEFUN ("window-memory-usage", Fwindow_memory_usage, Swindow_memory_usage,
|
|
|
4516 1, 1, 0 /*
|
|
|
4517 Return stats about the memory usage of window WINDOW.
|
|
|
4518 The values returned are in the form an alist of usage types and byte
|
|
|
4519 counts. The byte counts attempt to encompass all the memory used
|
|
|
4520 by the window (separate from the memory logically associated with a
|
|
|
4521 buffer or frame), including internal structures and any malloc()
|
|
|
4522 overhead associated with them. In practice, the byte counts are
|
|
|
4523 underestimated because certain memory usage is very hard to determine
|
|
|
4524 (e.g. the amount of memory used inside the Xt library or inside the
|
|
|
4525 X server) and because there is other stuff that might logically
|
|
|
4526 be associated with a window, buffer, or frame (e.g. window configurations,
|
|
|
4527 glyphs) but should not obviously be included in the usage counts.
|
|
|
4528
|
|
|
4529 Multiple slices of the total memory usage may be returned, separated
|
|
|
4530 by a nil. Each slice represents a particular view of the memory, a
|
|
|
4531 particular way of partitioning it into groups. Within a slice, there
|
|
|
4532 is no overlap between the groups of memory, and each slice collectively
|
|
|
4533 represents all the memory concerned.
|
|
|
4534 */ )
|
|
|
4535 (window)
|
|
|
4536 Lisp_Object window;
|
|
|
4537 {
|
|
|
4538 struct window_stats stats;
|
|
|
4539 struct overhead_stats ovstats;
|
|
|
4540
|
|
|
4541 CHECK_WINDOW (window); /* dead windows should be allowed, no? */
|
|
|
4542 memset (&ovstats, 0, sizeof (ovstats));
|
|
|
4543 compute_window_usage (XWINDOW (window), &stats, &ovstats);
|
|
|
4544
|
|
|
4545 return nconc2 (
|
|
|
4546 #ifdef HAVE_SCROLLBARS
|
|
|
4547 list6
|
|
|
4548 #else
|
|
|
4549 list5
|
|
|
4550 #endif
|
|
|
4551 (Fcons (Qface_cache, make_int (stats.face)),
|
|
|
4552 Fcons (Qglyph_cache, make_int (stats.glyph)),
|
|
|
4553 #ifdef HAVE_SCROLLBARS
|
|
|
4554 Fcons (Qscrollbar_instances, make_int (stats.scrollbar)),
|
|
|
4555 #endif
|
|
|
4556 Fcons (Qline_start_cache, make_int (stats.line_start)),
|
|
|
4557 Fcons (Qother_redisplay, make_int (stats.other_redisplay)),
|
|
|
4558 Fcons (Qother, make_int (stats.other))),
|
|
|
4559 list4 (Qnil,
|
|
|
4560 Fcons (Qactually_requested,
|
|
|
4561 make_int (ovstats.was_requested)),
|
|
|
4562 Fcons (Qmalloc_overhead,
|
|
|
4563 make_int (ovstats.malloc_overhead)),
|
|
|
4564 Fcons (Qdynarr_overhead,
|
|
|
4565 make_int (ovstats.dynarr_overhead))));
|
|
|
4566 }
|
|
|
4567
|
|
|
4568 #endif /* MEMORY_USAGE_STATS */
|
|
|
4569
|
|
|
4570
|
|
|
4571 /************************************************************************/
|
|
|
4572 /* Window configurations */
|
|
|
4573 /************************************************************************/
|
|
|
4574
|
|
|
4575 /* #### This window configuration stuff has had serious bugs lurking in it
|
|
|
4576 for years; it would be a -huge- win if this was reimplemented in lisp.
|
|
|
4577 */
|
|
|
4578
|
|
|
4579 /* If you add anything to this structure make sure saved_window_equal
|
|
|
4580 knows about it. */
|
|
|
4581 struct saved_window
|
|
|
4582 {
|
|
|
4583 Lisp_Object window; /* window */
|
|
|
4584 Lisp_Object buffer; /* buffer */
|
|
|
4585 Lisp_Object start; /* copied marker */
|
|
|
4586 Lisp_Object pointm; /* copied marker */
|
|
|
4587 Lisp_Object sb_point; /* copied marker */
|
|
|
4588 Lisp_Object mark; /* copied marker */
|
|
|
4589 int pixel_left;
|
|
|
4590 int pixel_top;
|
|
|
4591 int pixel_width;
|
|
|
4592 int pixel_height;
|
|
|
4593 int hscroll;
|
|
|
4594 int parent_index; /* index into saved_windows */
|
|
|
4595 int prev_index; /* index into saved_windows */
|
|
|
4596 Lisp_Object dedicated;
|
|
|
4597 char start_at_line_beg; /* boolean */
|
|
|
4598 };
|
|
|
4599
|
|
|
4600 /* If you add anything to this structure make sure window_config_equal
|
|
|
4601 knows about it. */
|
|
|
4602 struct window_config
|
|
|
4603 {
|
|
|
4604 struct lcrecord_header header;
|
|
|
4605 int frame_width;
|
|
|
4606 int frame_height;
|
|
|
4607 #if 0 /* FSFmacs */
|
|
|
4608 Lisp_Object selected_frame;
|
|
|
4609 #endif
|
|
|
4610 Lisp_Object current_window;
|
|
|
4611 Lisp_Object current_buffer;
|
|
|
4612 Lisp_Object minibuf_scroll_window;
|
|
|
4613 Lisp_Object root_window;
|
|
|
4614 /* Record the values of window-min-width and window-min-height
|
|
|
4615 so that window sizes remain consistent with them. */
|
|
|
4616 int min_width, min_height;
|
|
|
4617 #ifdef ENERGIZE
|
|
|
4618 /* The buffer whose p_sheets are visible */
|
|
|
4619 Lisp_Object p_sheet_buffer;
|
|
|
4620 #endif
|
|
|
4621 int saved_windows_count;
|
|
|
4622 /* Zero-sized arrays aren't ANSI C */
|
|
|
4623 struct saved_window saved_windows[1];
|
|
|
4624 };
|
|
|
4625 #define SAVED_WINDOW_N(conf, n) (&((conf)->saved_windows[(n)]))
|
|
|
4626
|
|
|
4627 static Lisp_Object mark_window_config (Lisp_Object, void (*) (Lisp_Object));
|
|
|
4628 static void print_window_config (Lisp_Object, Lisp_Object, int);
|
|
|
4629 static unsigned int sizeof_window_config (CONST void *);
|
|
|
4630
|
|
|
4631 #define XWINDOW_CONFIGURATION(x) XRECORD (x, window_configuration, struct window_config)
|
|
|
4632 #define XSETWINDOW_CONFIGURATION(x, p) XSETRECORD (x, p, window_configuration)
|
|
|
4633 #define WINDOW_CONFIGURATIONP(x) RECORDP (x, window_configuration)
|
|
|
4634 #define GC_WINDOW_CONFIGURATIONP(x) GC_RECORDP (x, window_configuration)
|
|
|
4635 #define CHECK_WINDOW_CONFIGURATION(x) CHECK_RECORD (x, window_configuration)
|
|
|
4636
|
|
|
4637 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("window-configuration",
|
|
|
4638 window_configuration,
|
|
|
4639 mark_window_config,
|
|
|
4640 print_window_config,
|
|
|
4641 0, 0, 0, sizeof_window_config,
|
|
|
4642 struct window_config);
|
|
|
4643
|
|
|
4644 static Lisp_Object
|
|
|
4645 mark_window_config (Lisp_Object obj, void (*markobj) (Lisp_Object))
|
|
|
4646 {
|
|
|
4647 struct window_config *config = XWINDOW_CONFIGURATION (obj);
|
|
|
4648 int i;
|
|
|
4649 ((markobj) (config->current_window));
|
|
|
4650 ((markobj) (config->current_buffer));
|
|
|
4651 ((markobj) (config->minibuf_scroll_window));
|
|
|
4652 ((markobj) (config->root_window));
|
|
|
4653 #ifdef ENERGIZE
|
|
|
4654 ((markobj) (config->p_sheet_buffer));
|
|
|
4655 #endif
|
|
|
4656 for (i = 0; i < config->saved_windows_count; i++)
|
|
|
4657 {
|
|
|
4658 struct saved_window *s = SAVED_WINDOW_N (config, i);
|
|
|
4659 ((markobj) (s->window));
|
|
|
4660 ((markobj) (s->buffer));
|
|
|
4661 ((markobj) (s->start));
|
|
|
4662 ((markobj) (s->pointm));
|
|
|
4663 ((markobj) (s->sb_point));
|
|
|
4664 ((markobj) (s->mark));
|
|
|
4665 ((markobj) (s->dedicated));
|
|
|
4666 }
|
|
|
4667 return (Qnil);
|
|
|
4668 }
|
|
|
4669
|
|
|
4670 static int
|
|
|
4671 sizeof_window_config_for_n_windows (int n)
|
|
|
4672 {
|
|
|
4673 return (sizeof (struct window_config) +
|
|
|
4674 /* n - 1 because zero-sized arrays aren't ANSI C */
|
|
|
4675 (n - 1) *sizeof (struct saved_window));
|
|
|
4676 }
|
|
|
4677
|
|
|
4678 static unsigned int
|
|
|
4679 sizeof_window_config (CONST void *h)
|
|
|
4680 {
|
|
|
4681 CONST struct window_config *c = h;
|
|
|
4682 return sizeof_window_config_for_n_windows (c->saved_windows_count);
|
|
|
4683 }
|
|
|
4684
|
|
|
4685 static void
|
|
|
4686 print_window_config (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
4687 {
|
|
|
4688 struct window_config *config = XWINDOW_CONFIGURATION (obj);
|
|
|
4689 char buf[200];
|
|
|
4690 if (print_readably)
|
|
|
4691 error ("printing unreadable object #<window-configuration 0x%x>",
|
|
|
4692 config->header.uid);
|
|
|
4693 write_c_string ("#<window-configuration ", printcharfun);
|
|
|
4694 sprintf (buf, "0x%x>", config->header.uid);
|
|
|
4695 write_c_string (buf, printcharfun);
|
|
|
4696 }
|
|
|
4697
|
|
|
4698 /* Returns a boolean indicating whether the two saved windows are
|
|
|
4699 identical. */
|
|
|
4700 static int
|
|
|
4701 saved_window_equal (struct saved_window *win1, struct saved_window *win2)
|
|
|
4702 {
|
|
|
4703 if (!EQ (win1->window, win2->window))
|
|
|
4704 return 0;
|
|
|
4705 else if (!EQ (win1->buffer, win2->buffer))
|
|
|
4706 return 0;
|
|
|
4707 else if (NILP (Fequal (win1->start, win2->start)))
|
|
|
4708 return 0;
|
|
|
4709 else if (NILP (Fequal (win1->pointm, win2->pointm)))
|
|
|
4710 return 0;
|
|
|
4711 else if (NILP (Fequal (win1->sb_point, win2->sb_point)))
|
|
|
4712 return 0;
|
|
|
4713 else if (NILP (Fequal (win1->mark, win2->mark)))
|
|
|
4714 return 0;
|
|
|
4715 else if (win1->pixel_left != win2->pixel_left)
|
|
|
4716 return 0;
|
|
|
4717 else if (win1->pixel_top != win2->pixel_top)
|
|
|
4718 return 0;
|
|
|
4719 else if (win1->pixel_width != win2->pixel_width)
|
|
|
4720 return 0;
|
|
|
4721 else if (win1->pixel_height != win2->pixel_height)
|
|
|
4722 return 0;
|
|
|
4723 else if (win1->hscroll != win2->hscroll)
|
|
|
4724 return 0;
|
|
|
4725 else if (win1->parent_index != win2->parent_index)
|
|
|
4726 return 0;
|
|
|
4727 else if (win1->prev_index != win2->prev_index)
|
|
|
4728 return 0;
|
|
|
4729 else if (!EQ (win1->dedicated, win2->dedicated))
|
|
|
4730 return 0;
|
|
|
4731 else if (win1->start_at_line_beg != win2->start_at_line_beg)
|
|
|
4732 return 0;
|
|
|
4733
|
|
|
4734 return 1;
|
|
|
4735 }
|
|
|
4736
|
|
|
4737 /* Returns a boolean indicating whether the two given configurations
|
|
|
4738 are identical. */
|
|
|
4739 static int
|
|
|
4740 window_config_equal (Lisp_Object conf1, Lisp_Object conf2)
|
|
|
4741 {
|
|
|
4742 struct window_config *fig1, *fig2;
|
|
|
4743 int i;
|
|
|
4744
|
|
|
4745 /* First check if they are truly the same. */
|
|
|
4746 if (EQ (conf1, conf2))
|
|
|
4747 return 1;
|
|
|
4748
|
|
|
4749 fig1 = XWINDOW_CONFIGURATION (conf1);
|
|
|
4750 fig2 = XWINDOW_CONFIGURATION (conf2);
|
|
|
4751
|
|
|
4752 if (fig1->saved_windows_count != fig2->saved_windows_count)
|
|
|
4753 return 0;
|
|
|
4754 else if (!EQ (fig1->current_window, fig2->current_window))
|
|
|
4755 return 0;
|
|
|
4756 else if (!EQ (fig1->current_buffer, fig2->current_buffer))
|
|
|
4757 return 0;
|
|
|
4758 else if (!EQ (fig1->root_window, fig2->root_window))
|
|
|
4759 return 0;
|
|
|
4760 else if (!EQ (fig1->minibuf_scroll_window, fig2->minibuf_scroll_window))
|
|
|
4761 return 0;
|
|
|
4762 else if (fig1->frame_width != fig2->frame_width)
|
|
|
4763 return 0;
|
|
|
4764 else if (fig1->frame_height != fig2->frame_height)
|
|
|
4765 return 0;
|
|
|
4766 #ifdef ENERGIZE
|
|
|
4767 else if (!EQ (fig1->p_sheet_buffer, fig2->p_sheet_buffer))
|
|
|
4768 return 0;
|
|
|
4769 #endif
|
|
|
4770
|
|
|
4771 for (i = 0; i < fig1->saved_windows_count; i++)
|
|
|
4772 {
|
|
|
4773 if (!saved_window_equal (SAVED_WINDOW_N (fig1, i),
|
|
|
4774 SAVED_WINDOW_N (fig2, i)))
|
|
|
4775 return 0;
|
|
|
4776 }
|
|
|
4777
|
|
|
4778 return 1;
|
|
|
4779 }
|
|
|
4780
|
|
|
4781 DEFUN ("window-configuration-p", Fwindow_configuration_p,
|
|
|
4782 Swindow_configuration_p, 1, 1, 0 /*
|
|
|
4783 T if OBJECT is a window-configuration object.
|
|
|
4784 */ )
|
|
|
4785 (obj)
|
|
|
4786 Lisp_Object obj;
|
|
|
4787 {
|
|
|
4788 return (WINDOW_CONFIGURATIONP (obj) ? Qt : Qnil);
|
|
|
4789 }
|
|
|
4790
|
|
|
4791 /*
|
|
|
4792 * There are getting to be a lot of functions which traverse the
|
|
|
4793 * window structure doing various things. It may be worth writing a
|
|
|
4794 * generic map-windows function.
|
|
|
4795 * #### I just did. Feel free to rewrite. --ben
|
|
|
4796 */
|
|
|
4797 void
|
|
|
4798 mark_windows_in_use (Lisp_Object window, int mark)
|
|
|
4799 {
|
|
|
4800 for (; !NILP (window) ; window = XWINDOW (window)->next)
|
|
|
4801 {
|
|
|
4802 XWINDOW (window)->config_mark = mark;
|
|
|
4803
|
|
|
4804 if (!NILP (XWINDOW (window)->vchild))
|
|
|
4805 mark_windows_in_use (XWINDOW (window)->vchild, mark);
|
|
|
4806 else if (!NILP (XWINDOW (window)->hchild))
|
|
|
4807 mark_windows_in_use (XWINDOW (window)->hchild, mark);
|
|
|
4808 }
|
|
|
4809 }
|
|
|
4810
|
|
|
4811 /* Lisp_Object return value so it can be used in record_unwind_protect() */
|
|
|
4812 static Lisp_Object
|
|
|
4813 free_window_configuration (Lisp_Object window_config)
|
|
|
4814 {
|
|
|
4815 int i;
|
|
|
4816 struct window_config *config = XWINDOW_CONFIGURATION (window_config);
|
|
|
4817
|
|
|
4818 /* Free all the markers. It's not completely necessary that
|
|
|
4819 we do this (window configs sitting in a free list aren't
|
|
|
4820 marked normally so the markers wouldn't be marked anyway)
|
|
|
4821 but it's more efficient. */
|
|
|
4822 for (i = 0; i < config->saved_windows_count; i++)
|
|
|
4823 {
|
|
|
4824 struct saved_window *p = SAVED_WINDOW_N (config, i);
|
|
|
4825
|
|
|
4826 if (!NILP (p->pointm))
|
|
|
4827 {
|
|
|
4828 free_marker (XMARKER (p->pointm));
|
|
|
4829 p->pointm = Qnil;
|
|
|
4830 }
|
|
|
4831 if (!NILP (p->start))
|
|
|
4832 {
|
|
|
4833 free_marker (XMARKER (p->start));
|
|
|
4834 p->start = Qnil;
|
|
|
4835 }
|
|
|
4836 if (!NILP (p->sb_point))
|
|
|
4837 {
|
|
|
4838 free_marker (XMARKER (p->sb_point));
|
|
|
4839 p->sb_point = Qnil;
|
|
|
4840 }
|
|
|
4841 if (!NILP (p->mark))
|
|
|
4842 {
|
|
|
4843 free_marker (XMARKER (p->mark));
|
|
|
4844 p->mark = Qnil;
|
|
|
4845 }
|
|
|
4846 }
|
|
|
4847
|
|
|
4848 if (config->saved_windows_count <= countof (Vwindow_configuration_free_list))
|
|
|
4849 free_managed_lcrecord (Vwindow_configuration_free_list
|
|
|
4850 [config->saved_windows_count - 1],
|
|
|
4851 window_config);
|
|
|
4852
|
|
|
4853 return Qnil;
|
|
|
4854 }
|
|
|
4855
|
|
|
4856 DEFUN ("set-window-configuration",
|
|
|
4857 Fset_window_configuration, Sset_window_configuration,
|
|
|
4858 1, 1, 0 /*
|
|
|
4859 Set the configuration of windows and buffers as specified by CONFIGURATION.
|
|
|
4860 CONFIGURATION must be a value previously returned
|
|
|
4861 by `current-window-configuration' (which see).
|
|
|
4862 */ )
|
|
|
4863 (configuration)
|
|
|
4864 Lisp_Object configuration;
|
|
|
4865 {
|
|
|
4866 struct window *w;
|
|
|
4867 struct window_config *config;
|
|
|
4868 struct saved_window *p;
|
|
|
4869 Lisp_Object new_current_buffer;
|
|
|
4870 int k;
|
|
|
4871 Lisp_Object frame;
|
|
|
4872 struct frame *f;
|
|
|
4873 struct gcpro gcpro1;
|
|
|
4874 Lisp_Object old_window_config;
|
|
|
4875 int previous_frame_height;
|
|
|
4876 int previous_frame_width;
|
|
|
4877 int specpdl_count = specpdl_depth ();
|
|
|
4878
|
|
|
4879 GCPRO1 (configuration);
|
|
|
4880
|
|
|
4881 CHECK_WINDOW_CONFIGURATION (configuration);
|
|
|
4882 config = XWINDOW_CONFIGURATION (configuration);
|
|
|
4883
|
|
|
4884 frame = XWINDOW (SAVED_WINDOW_N (config, 0)->window)->frame;
|
|
|
4885 f = XFRAME (frame);
|
|
|
4886
|
|
|
4887 /* Do not signal an error here if the frame was deleted. There are
|
|
|
4888 reasonable cases where we could get here with a deleted frame and
|
|
|
4889 just want to do close to nothing instead. */
|
|
|
4890
|
|
|
4891 if (FRAME_LIVE_P (f))
|
|
|
4892 {
|
|
|
4893 /* restore the frame characteristics */
|
|
|
4894 #ifdef ENERGIZE
|
|
|
4895 if (FRAME_X_P (f))
|
|
|
4896 {
|
|
|
4897 Lisp_Object new_desired = config->p_sheet_buffer;
|
|
|
4898
|
|
|
4899 if (BUFFERP (new_desired) &&
|
|
|
4900 !BUFFER_LIVE_P (XBUFFER (new_desired)))
|
|
|
4901 new_desired = Qnil; /* the desired buffer was killed */
|
|
|
4902
|
|
|
4903 /* need to restore the desired buffer */
|
|
|
4904 if (!EQ (new_desired, desired_psheet_buffer (f)))
|
|
|
4905 make_psheets_desired (f, new_desired);
|
|
|
4906 }
|
|
|
4907 #endif
|
|
|
4908
|
|
|
4909 new_current_buffer = config->current_buffer;
|
|
|
4910 if (!BUFFER_LIVE_P (XBUFFER (new_current_buffer)))
|
|
|
4911 new_current_buffer = Qnil;
|
|
|
4912
|
|
|
4913 /*
|
|
|
4914 * Assumed precondition: w->config_mark = 0 for all w
|
|
|
4915 * This procedure should ensure this is true by the time it exits
|
|
|
4916 * to ensure the precondition for future calls.
|
|
|
4917 *
|
|
|
4918 * We use w->config_mark to know whether we're modifying a
|
|
|
4919 * window that is currently visible on the frame (#### we
|
|
|
4920 * should just be able to check whether the window is dead
|
|
|
4921 * or not, but this way is safer?). As we process each
|
|
|
4922 * window, we set its config_mark to 0. At the end, we
|
|
|
4923 * go through all the windows that used to be on the frame,
|
|
|
4924 * set each one's config_mark to 0 (to maintain the
|
|
|
4925 * assumed precondition) and delete each one that's no
|
|
|
4926 * longer in use.
|
|
|
4927 *
|
|
|
4928 * #### Using a window-configuration to keep track of
|
|
|
4929 * the current windows is wasteful. All we need is the
|
|
|
4930 * list of windows, so we could just use a dynarr.
|
|
|
4931 */
|
|
|
4932 old_window_config = Fcurrent_window_configuration (frame);
|
|
|
4933
|
|
|
4934 /* If the new configuration is already equal to the old, then stop
|
|
|
4935 right here. This saves the work below and it also saves
|
|
|
4936 triggering a full redisplay of this window. This is a huge win
|
|
|
4937 when using the mouse since the mode motion code uses
|
|
|
4938 save-window-excursion extensively but will rarely cause the
|
|
|
4939 configuration to actually change. */
|
|
|
4940 if (window_config_equal (configuration, old_window_config))
|
|
|
4941 {
|
|
|
4942 free_window_configuration (old_window_config);
|
|
|
4943 UNGCPRO;
|
|
|
4944 return Qnil;
|
|
|
4945 }
|
|
|
4946
|
|
|
4947 /* We can't quit or even check for quit because that may cause
|
|
|
4948 investigation of the frame state, which may crash if the frame is
|
|
|
4949 in an inconsistent state. */
|
|
|
4950 begin_dont_check_for_quit ();
|
|
|
4951 record_unwind_protect (free_window_configuration, old_window_config);
|
|
|
4952
|
|
|
4953 mark_windows_in_use (f->root_window, 1);
|
|
|
4954
|
|
|
4955 previous_frame_width = FRAME_WIDTH (f);
|
|
|
4956 previous_frame_height = FRAME_HEIGHT (f);
|
|
|
4957 /* If the frame has been resized since this window configuration was
|
|
|
4958 made, we change the frame to the size specified in the
|
|
|
4959 configuration, restore the configuration, and then resize it
|
|
|
4960 back. We keep track of the prevailing height in these variables. */
|
|
|
4961 if (config->frame_height != FRAME_HEIGHT (f)
|
|
|
4962 || config->frame_width != FRAME_WIDTH (f))
|
|
|
4963 change_frame_size (f, config->frame_height, config->frame_width, 0);
|
|
|
4964
|
|
|
4965 /* Temporarily avoid any problems with windows that are smaller
|
|
|
4966 than they are supposed to be. */
|
|
|
4967 window_min_height = 1;
|
|
|
4968 window_min_width = 1;
|
|
|
4969
|
|
|
4970 /* OK, now restore all the windows in the window config.
|
|
|
4971 This may involve "undeleting" windows, since the
|
|
|
4972 windows in the window config may be deleted.
|
|
|
4973 */
|
|
|
4974 for (k = 0; k < config->saved_windows_count; k++)
|
|
|
4975 {
|
|
|
4976 p = SAVED_WINDOW_N (config, k);
|
|
|
4977 w = XWINDOW (p->window);
|
|
|
4978 w->next = Qnil;
|
|
|
4979
|
|
|
4980 /* The window might be dead. In this case, its redisplay
|
|
|
4981 structures were freed, so we need to reallocate them. */
|
|
|
4982 if (!w->face_cachels)
|
|
|
4983 {
|
|
|
4984 w->face_cachels = Dynarr_new (struct face_cachel);
|
|
|
4985 reset_face_cachels (w);
|
|
|
4986 }
|
|
|
4987 if (!w->glyph_cachels)
|
|
|
4988 w->glyph_cachels = Dynarr_new (struct glyph_cachel);
|
|
|
4989 if (!w->line_start_cache)
|
|
|
4990 w->line_start_cache = Dynarr_new (struct line_start_cache);
|
|
|
4991 w->dead = 0;
|
|
|
4992
|
|
|
4993 if (p->parent_index >= 0)
|
|
|
4994 w->parent = SAVED_WINDOW_N (config, p->parent_index)->window;
|
|
|
4995 else
|
|
|
4996 w->parent = Qnil;
|
|
|
4997
|
|
|
4998 if (p->prev_index >= 0)
|
|
|
4999 {
|
|
|
5000 w->prev = SAVED_WINDOW_N (config, p->prev_index)->window;
|
|
|
5001
|
|
|
5002 /* This is true for a minibuffer-only frame. */
|
|
|
5003 if (!NILP (w->mini_p) && EQ (w->prev, p->window))
|
|
|
5004 w->next = Qnil;
|
|
|
5005 else
|
|
|
5006 XWINDOW (w->prev)->next = p->window;
|
|
|
5007 }
|
|
|
5008 else
|
|
|
5009 {
|
|
|
5010 w->prev = Qnil;
|
|
|
5011 if (!NILP (w->parent))
|
|
|
5012 {
|
|
|
5013 if (WINDOW_WIDTH (p) == WINDOW_WIDTH (XWINDOW (w->parent)))
|
|
|
5014 {
|
|
|
5015 XWINDOW (w->parent)->vchild = p->window;
|
|
|
5016 XWINDOW (w->parent)->hchild = Qnil;
|
|
|
5017 }
|
|
|
5018 else
|
|
|
5019 {
|
|
|
5020 XWINDOW (w->parent)->hchild = p->window;
|
|
|
5021 XWINDOW (w->parent)->vchild = Qnil;
|
|
|
5022 }
|
|
|
5023 }
|
|
|
5024 }
|
|
|
5025 if (!w->config_mark)
|
|
|
5026 {
|
|
|
5027 /* #### This should be equivalent to the window previously
|
|
|
5028 having been dead. If we're brave, we'll put in an
|
|
|
5029 assertion to this effect. */
|
|
|
5030 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
5031 }
|
|
|
5032 else /* if (!EQ (w->buffer, p->buffer)) */
|
|
|
5033 {
|
|
|
5034 /* With the new redisplay we let it know that a change has
|
|
|
5035 been made and it will take care of the rest. If we don't
|
|
|
5036 tell it something has possibly changed it could lead to
|
|
|
5037 incorrect display. */
|
|
|
5038 MARK_WINDOWS_CHANGED (w);
|
|
|
5039 }
|
|
|
5040
|
|
|
5041 WINDOW_LEFT (w) = WINDOW_LEFT (p);
|
|
|
5042 WINDOW_TOP (w) = WINDOW_TOP (p);
|
|
|
5043 WINDOW_WIDTH (w) = WINDOW_WIDTH (p);
|
|
|
5044 WINDOW_HEIGHT (w) = WINDOW_HEIGHT (p);
|
|
|
5045 w->hscroll = p->hscroll;
|
|
|
5046 /* #### Here we need to restore the saved specs for
|
|
|
5047 has-modeline-p, scrollbar-width, scrollbar-height,
|
|
|
5048 modeline-shadow-thickness, left-margin-width,
|
|
|
5049 right-margin-width, and current-display-table. */
|
|
|
5050 w->dedicated = p->dedicated;
|
|
|
5051 w->line_cache_last_updated = Qzero;
|
|
|
5052 SET_LAST_MODIFIED (w, 1);
|
|
|
5053 SET_LAST_FACECHANGE (w);
|
|
|
5054 w->config_mark = 0;
|
|
|
5055
|
|
|
5056 /* Reinstall the saved buffer and pointers into it. */
|
|
|
5057 if (NILP (p->buffer))
|
|
|
5058 w->buffer = p->buffer;
|
|
|
5059 else
|
|
|
5060 {
|
|
|
5061 if (BUFFER_LIVE_P (XBUFFER (p->buffer)))
|
|
|
5062 /* If saved buffer is alive, install it. */
|
|
|
5063 {
|
|
|
5064 w->buffer = p->buffer;
|
|
|
5065 w->start_at_line_beg = p->start_at_line_beg;
|
|
|
5066 set_marker_restricted (w->start[CURRENT_DISP],
|
|
|
5067 Fmarker_position (p->start),
|
|
|
5068 w->buffer);
|
|
|
5069 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
5070 Fmarker_position (p->pointm),
|
|
|
5071 w->buffer);
|
|
|
5072 set_marker_restricted (w->sb_point,
|
|
|
5073 Fmarker_position (p->sb_point),
|
|
|
5074 w->buffer);
|
|
|
5075 Fset_marker (XBUFFER (w->buffer)->mark,
|
|
|
5076 Fmarker_position (p->mark), w->buffer);
|
|
|
5077
|
|
|
5078 /* As documented in Fcurrent_window_configuration, don't
|
|
|
5079 save the location of point in the buffer which was current
|
|
|
5080 when the window configuration was recorded. */
|
|
|
5081 if (!EQ (p->buffer, new_current_buffer) &&
|
|
|
5082 XBUFFER (p->buffer) == current_buffer)
|
|
|
5083 Fgoto_char (w->pointm[CURRENT_DISP], Fcurrent_buffer ());
|
|
|
5084 }
|
|
|
5085 else if (NILP (w->buffer) ||
|
|
|
5086 !BUFFER_LIVE_P (XBUFFER (w->buffer)))
|
|
|
5087 /* Else if window's old buffer is dead too, get a live one. */
|
|
|
5088 {
|
|
|
5089 /* #### The following line makes me nervous... */
|
|
|
5090 /* w->buffer = Fcdr (Fcar (XFRAME (w->frame)->buffer_alist));*/
|
|
|
5091 w->buffer = Fget_buffer_create (QSscratch);
|
|
|
5092 /* w->buffer = Fother_buffer (Qnil, w->frame, Qnil); */
|
|
|
5093 /* This will set the markers to beginning of visible
|
|
|
5094 range. */
|
|
|
5095 set_marker_restricted (w->start[CURRENT_DISP], Qzero, w->buffer);
|
|
|
5096 set_marker_restricted (w->pointm[CURRENT_DISP], Qzero,
|
|
|
5097 w->buffer);
|
|
|
5098 set_marker_restricted (w->sb_point, Qzero, w->buffer);
|
|
|
5099 w->start_at_line_beg = 1;
|
|
|
5100 }
|
|
|
5101 else
|
|
|
5102 /* Keeping window's old buffer; make sure the markers
|
|
|
5103 are real. */
|
|
|
5104 {
|
|
|
5105 /* Set window markers at start of visible range. */
|
|
|
5106 if (XMARKER (w->start[CURRENT_DISP])->buffer == 0)
|
|
|
5107 set_marker_restricted (w->start[CURRENT_DISP], Qzero,
|
|
|
5108 w->buffer);
|
|
|
5109 if (XMARKER (w->sb_point)->buffer == 0)
|
|
|
5110 set_marker_restricted (w->sb_point, Qzero, w->buffer);
|
|
|
5111 if (XMARKER (w->pointm[CURRENT_DISP])->buffer == 0)
|
|
|
5112 set_marker_restricted (w->pointm[CURRENT_DISP],
|
|
|
5113 make_int
|
|
|
5114 (BUF_PT (XBUFFER (w->buffer))),
|
|
|
5115 w->buffer);
|
|
|
5116 w->start_at_line_beg = 1;
|
|
|
5117 }
|
|
|
5118 }
|
|
|
5119 }
|
|
|
5120
|
|
|
5121 FRAME_ROOT_WINDOW (f) = config->root_window;
|
|
|
5122 /* Note that FSFmacs unilaterally calls Fselect_window() here, and
|
|
|
5123 then calls do_switch_frame() below to select the frame that was
|
|
|
5124 recorded in the window config as being selected.
|
|
|
5125
|
|
|
5126 Instead, we don't ever change the selected frame, and either
|
|
|
5127 call Fselect_window() below if the window config's frame is
|
|
|
5128 currently selected, or just set the selected window of the
|
|
|
5129 window config's frame. */
|
|
|
5130
|
|
|
5131 /* Set the frame height to the value it had before this function. */
|
|
|
5132 if (previous_frame_height != FRAME_HEIGHT (f)
|
|
|
5133 || previous_frame_width != FRAME_WIDTH (f))
|
|
|
5134 change_frame_size (f, previous_frame_height, previous_frame_width, 0);
|
|
|
5135
|
|
|
5136 /* If restoring in the current frame make the window current,
|
|
|
5137 otherwise just update the frame selected_window slot to be
|
|
|
5138 the restored current_window. */
|
|
|
5139 if (f == selected_frame ())
|
|
|
5140 {
|
|
|
5141 /* When using `pop-window-configuration', often the minibuffer
|
|
|
5142 ends up as the selected window even though it's not active ...
|
|
|
5143 I really don't know the cause of this, but it should never
|
|
|
5144 happen. This kludge should fix it.
|
|
|
5145
|
|
|
5146 #### Find out why this is really going wrong. */
|
|
|
5147 if (!minibuf_level &&
|
|
|
5148 MINI_WINDOW_P (XWINDOW (config->current_window)))
|
|
|
5149 Fselect_window (Fnext_window (config->current_window,
|
|
|
5150 Qnil, Qnil, Qnil));
|
|
|
5151 else
|
|
|
5152 Fselect_window (config->current_window);
|
|
|
5153 if (!NILP (new_current_buffer))
|
|
|
5154 Fset_buffer (new_current_buffer);
|
|
|
5155 else
|
|
|
5156 Fset_buffer (XWINDOW (Fselected_window (Qnil))->buffer);
|
|
|
5157 #ifdef ENERGIZE
|
|
|
5158 energize_buffer_shown_hook (XWINDOW (Fselected_window (Qnil)));
|
|
|
5159 #endif
|
|
|
5160 }
|
|
|
5161 else
|
|
|
5162 set_frame_selected_window (f, config->current_window);
|
|
|
5163 }
|
|
|
5164
|
|
|
5165 /* Restore the minimum heights recorded in the configuration. */
|
|
|
5166 window_min_height = config->min_height;
|
|
|
5167 window_min_width = config->min_width;
|
|
|
5168
|
|
|
5169 #if 0 /* FSFmacs */
|
|
|
5170 /* see above comment */
|
|
|
5171 /* Fselect_window will have made f the selected frame, so we
|
|
|
5172 reselect the proper frame here. Fhandle_switch_frame will change the
|
|
|
5173 selected window too, but that doesn't make the call to
|
|
|
5174 Fselect_window above totally superfluous; it still sets f's
|
|
|
5175 selected window. */
|
|
|
5176 if (FRAME_LIVE_P (XFRAME (config->selected_frame)))
|
|
|
5177 do_switch_frame (config->selected_frame, Qnil, 0);
|
|
|
5178 #endif
|
|
|
5179
|
|
|
5180 Vminibuf_scroll_window = config->minibuf_scroll_window;
|
|
|
5181
|
|
|
5182 if (FRAME_LIVE_P (f))
|
|
|
5183 {
|
|
|
5184 /* Do this before calling recompute_all_cached_specifiers_in_window()
|
|
|
5185 so that things like redisplay_redraw_cursor() won't abort due
|
|
|
5186 to no window mirror present. */
|
|
|
5187 f->mirror_dirty = 1;
|
|
|
5188
|
|
|
5189 config = XWINDOW_CONFIGURATION (old_window_config);
|
|
|
5190 for (k = 0; k < config->saved_windows_count; k++)
|
|
|
5191 {
|
|
|
5192 p = SAVED_WINDOW_N (config, k);
|
|
|
5193 w = XWINDOW (p->window);
|
|
|
5194 /* Remember, we set w->config_mark on all currently visible
|
|
|
5195 windows, and reset it on all newly visible windows.
|
|
|
5196 Any windows still marked need to be deleted. */
|
|
|
5197 if (w->config_mark)
|
|
|
5198 {
|
|
|
5199 mark_window_as_deleted (w);
|
|
|
5200 w->config_mark = 0;
|
|
|
5201 }
|
|
|
5202 else
|
|
|
5203 {
|
|
|
5204 /* We just potentially changed the window's buffer and
|
|
|
5205 potentially turned a dead window into a live one,
|
|
|
5206 so we need to recompute the cached specifier values. */
|
|
|
5207 recompute_all_cached_specifiers_in_window (w);
|
|
|
5208 }
|
|
|
5209 }
|
|
|
5210 }
|
|
|
5211
|
|
|
5212 /* Now restore things, when everything else if OK. */
|
|
|
5213
|
|
|
5214 unbind_to (specpdl_count, Qnil);
|
|
|
5215
|
|
|
5216 UNGCPRO;
|
|
|
5217
|
|
|
5218 return (Qnil);
|
|
|
5219 }
|
|
|
5220
|
|
|
5221 /* Mark all subwindows of a window as deleted. The argument
|
|
|
5222 W is actually the subwindow tree of the window in question. */
|
|
|
5223
|
|
|
5224 void
|
|
|
5225 delete_all_subwindows (struct window *w)
|
|
|
5226 {
|
|
|
5227 if (!NILP (w->next))
|
|
|
5228 delete_all_subwindows (XWINDOW (w->next));
|
|
|
5229 if (!NILP (w->vchild))
|
|
|
5230 delete_all_subwindows (XWINDOW (w->vchild));
|
|
|
5231 if (!NILP (w->hchild))
|
|
|
5232 delete_all_subwindows (XWINDOW (w->hchild));
|
|
|
5233
|
|
|
5234 mark_window_as_deleted (w);
|
|
|
5235 }
|
|
|
5236
|
|
|
5237
|
|
|
5238 static int
|
|
|
5239 count_windows (struct window *window)
|
|
|
5240 {
|
|
|
5241 int count = 1;
|
|
|
5242 if (!NILP (window->next))
|
|
|
5243 count += count_windows (XWINDOW (window->next));
|
|
|
5244 if (!NILP (window->vchild))
|
|
|
5245 count += count_windows (XWINDOW (window->vchild));
|
|
|
5246 if (!NILP (window->hchild))
|
|
|
5247 count += count_windows (XWINDOW (window->hchild));
|
|
|
5248 return count;
|
|
|
5249 }
|
|
|
5250
|
|
|
5251 static int
|
|
|
5252 saved_window_index (Lisp_Object window, struct window_config *config, int lim)
|
|
|
5253 {
|
|
|
5254 int j;
|
|
|
5255 for (j = 0; j < lim; j++)
|
|
|
5256 {
|
|
|
5257 if (EQ (SAVED_WINDOW_N (config, j)->window, window))
|
|
|
5258 {
|
|
|
5259 return (j);
|
|
|
5260 }
|
|
|
5261 }
|
|
|
5262 abort ();
|
|
|
5263 return 0; /* suppress compiler warning */
|
|
|
5264 }
|
|
|
5265
|
|
|
5266 static int
|
|
|
5267 save_window_save (Lisp_Object window, struct window_config *config, int i)
|
|
|
5268 {
|
|
|
5269 struct saved_window *p;
|
|
|
5270 struct window *w;
|
|
|
5271
|
|
|
5272 for (; !NILP (window); window = w->next)
|
|
|
5273 {
|
|
|
5274 p = SAVED_WINDOW_N (config, i);
|
|
|
5275 w = XWINDOW (window);
|
|
|
5276
|
|
|
5277 i++;
|
|
|
5278 p->window = window;
|
|
|
5279 p->buffer = w->buffer;
|
|
|
5280 WINDOW_LEFT (p) = WINDOW_LEFT (w);
|
|
|
5281 WINDOW_TOP (p) = WINDOW_TOP (w);
|
|
|
5282 WINDOW_WIDTH (p) = WINDOW_WIDTH (w);
|
|
|
5283 WINDOW_HEIGHT (p) = WINDOW_HEIGHT (w);
|
|
|
5284 p->hscroll = w->hscroll;
|
|
|
5285 /* #### Here we need to save the specs for
|
|
|
5286 has-modeline-p, scrollbar-width, scrollbar-height,
|
|
|
5287 modeline-shadow-thickness, left-margin-width,
|
|
|
5288 right-margin-width, current-display-table, etc. */
|
|
|
5289 if (!NILP (w->buffer))
|
|
|
5290 {
|
|
|
5291 /* Save w's value of point in the window configuration.
|
|
|
5292 If w is the selected window, then get the value of point
|
|
|
5293 from the buffer; pointm is garbage in the selected window. */
|
|
|
5294 if (EQ (window, Fselected_window (Qnil)))
|
|
|
5295 {
|
|
|
5296 p->pointm = noseeum_make_marker ();
|
|
|
5297 Fset_marker (p->pointm,
|
|
|
5298 make_int (BUF_PT (XBUFFER (w->buffer))),
|
|
|
5299 w->buffer);
|
|
|
5300 }
|
|
|
5301 else
|
|
|
5302 p->pointm = noseeum_copy_marker (w->pointm[CURRENT_DISP], Qnil);
|
|
|
5303
|
|
|
5304 p->start = noseeum_copy_marker (w->start[CURRENT_DISP], Qnil);
|
|
|
5305 p->sb_point = noseeum_copy_marker (w->sb_point, Qnil);
|
|
|
5306 p->start_at_line_beg = w->start_at_line_beg;
|
|
|
5307
|
|
|
5308 p->mark = noseeum_copy_marker (XBUFFER (w->buffer)->mark, Qnil);
|
|
|
5309 }
|
|
|
5310 else
|
|
|
5311 {
|
|
|
5312 p->pointm = Qnil;
|
|
|
5313 p->start = Qnil;
|
|
|
5314 p->sb_point = Qnil;
|
|
|
5315 p->mark = Qnil;
|
|
|
5316 p->start_at_line_beg = 0;
|
|
|
5317 }
|
|
|
5318
|
|
|
5319 if (NILP (w->parent))
|
|
|
5320 p->parent_index = -1;
|
|
|
5321 else
|
|
|
5322 p->parent_index = saved_window_index (w->parent, config, i);
|
|
|
5323 if (NILP (w->prev))
|
|
|
5324 p->prev_index = -1;
|
|
|
5325 else
|
|
|
5326 p->prev_index = saved_window_index (w->prev, config, i);
|
|
|
5327 p->dedicated = w->dedicated;
|
|
|
5328 if (!NILP (w->vchild))
|
|
|
5329 i = save_window_save (w->vchild, config, i);
|
|
|
5330 if (!NILP (w->hchild))
|
|
|
5331 i = save_window_save (w->hchild, config, i);
|
|
|
5332 }
|
|
|
5333
|
|
|
5334 return i;
|
|
|
5335 }
|
|
|
5336
|
|
|
5337 #if 0 /* FSFmacs */
|
|
|
5338 /* Added to doc string:
|
|
|
5339
|
|
|
5340 This also records the currently selected frame, and FRAME's focus
|
|
|
5341 redirection (see `redirect-frame-focus').
|
|
|
5342
|
|
|
5343 */
|
|
|
5344 #endif
|
|
|
5345
|
|
|
5346 DEFUN ("current-window-configuration",
|
|
|
5347 Fcurrent_window_configuration, Scurrent_window_configuration, 0, 1, 0 /*
|
|
|
5348 Return an object representing the current window configuration of FRAME.
|
|
|
5349 If FRAME is nil or omitted, use the selected frame.
|
|
|
5350 This describes the number of windows, their sizes and current buffers,
|
|
|
5351 and for each displayed buffer, where display starts, and the positions of
|
|
|
5352 point and mark. An exception is made for point in the current buffer:
|
|
|
5353 its value is -not- saved.
|
|
|
5354 */ )
|
|
|
5355 (frame)
|
|
|
5356 Lisp_Object frame;
|
|
|
5357 {
|
|
|
5358 Lisp_Object result = Qnil;
|
|
|
5359 struct frame *f;
|
|
|
5360 int n_windows;
|
|
|
5361
|
|
|
5362 struct window_config *config;
|
|
|
5363
|
|
|
5364 f = decode_frame (frame);
|
|
|
5365
|
|
|
5366 n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f)));
|
|
|
5367 if (n_windows <= countof (Vwindow_configuration_free_list))
|
|
|
5368 config =
|
|
|
5369 XWINDOW_CONFIGURATION (allocate_managed_lcrecord
|
|
|
5370 (Vwindow_configuration_free_list
|
|
|
5371 [n_windows - 1]));
|
|
|
5372 else
|
|
|
5373 /* More than ten windows; just allocate directly */
|
|
|
5374 config = alloc_lcrecord (sizeof_window_config_for_n_windows (n_windows),
|
|
|
5375 lrecord_window_configuration);
|
|
|
5376 XSETWINDOW_CONFIGURATION (result, config);
|
|
|
5377
|
|
|
5378 config->frame_width = FRAME_WIDTH (f);
|
|
|
5379 config->frame_height = FRAME_HEIGHT (f);
|
|
|
5380 config->current_window = FRAME_SELECTED_WINDOW (f);
|
|
|
5381 XSETBUFFER (config->current_buffer, current_buffer);
|
|
|
5382 config->minibuf_scroll_window = Vminibuf_scroll_window;
|
|
|
5383 config->root_window = FRAME_ROOT_WINDOW (f);
|
|
|
5384 config->min_height = window_min_height;
|
|
|
5385 config->min_width = window_min_width;
|
|
|
5386 config->saved_windows_count = n_windows;
|
|
|
5387 #ifdef ENERGIZE
|
|
|
5388 {
|
|
|
5389 config->p_sheet_buffer = desired_psheet_buffer (f);
|
|
|
5390 if (ZEROP (config->p_sheet_buffer)) /* #### necessaryp? */
|
|
|
5391 config->p_sheet_buffer = Qnil;
|
|
|
5392 }
|
|
|
5393 #endif
|
|
|
5394 save_window_save (FRAME_ROOT_WINDOW (f), config, 0);
|
|
|
5395 return (result);
|
|
|
5396 }
|
|
|
5397
|
|
|
5398 Lisp_Object
|
|
|
5399 save_window_excursion_unwind (Lisp_Object window_config)
|
|
|
5400 {
|
|
|
5401 Lisp_Object val = Fset_window_configuration (window_config);
|
|
|
5402 free_window_configuration (window_config);
|
|
|
5403 return val;
|
|
|
5404 }
|
|
|
5405
|
|
|
5406 DEFUN ("save-window-excursion", Fsave_window_excursion, Ssave_window_excursion,
|
|
|
5407 0, UNEVALLED, 0 /*
|
|
|
5408 Execute body, preserving window sizes and contents.
|
|
|
5409 Restores which buffer appears in which window, where display starts,
|
|
|
5410 as well as the current buffer.
|
|
|
5411 Does not restore the value of point in current buffer.
|
|
|
5412 */ )
|
|
|
5413 (args)
|
|
|
5414 Lisp_Object args;
|
|
|
5415 {
|
|
|
5416 /* This function can GC */
|
|
|
5417 Lisp_Object val;
|
|
|
5418 int speccount = specpdl_depth ();
|
|
|
5419
|
|
|
5420 record_unwind_protect (save_window_excursion_unwind,
|
|
|
5421 Fcurrent_window_configuration (Qnil));
|
|
|
5422 val = Fprogn (args);
|
|
|
5423 return unbind_to (speccount, val);
|
|
|
5424 }
|
|
|
5425
|
|
|
5426
|
|
|
5427 #ifdef DEBUG_XEMACS
|
|
|
5428 /* This is short and simple in elisp, but... it was written to debug
|
|
|
5429 problems purely on the C side. That is where we need to call it so
|
|
|
5430 here it is. */
|
|
|
5431 static void
|
|
|
5432 debug_print_window (Lisp_Object window, int level)
|
|
|
5433 {
|
|
|
5434 Lisp_Object child;
|
|
|
5435 int i = level;
|
|
|
5436
|
|
|
5437 child = Fwindow_first_vchild (window);
|
|
|
5438 if (NILP (child))
|
|
|
5439 child = Fwindow_first_hchild (window);
|
|
|
5440
|
|
|
5441 while (i > 0)
|
|
|
5442 {
|
|
|
5443 fprintf (stderr, "\t");
|
|
|
5444 i--;
|
|
|
5445 }
|
|
|
5446
|
|
|
5447 fprintf (stderr, "#<window");
|
|
|
5448 if (!NILP (XWINDOW (window)->buffer) && BUFFERP (XWINDOW (window)->buffer))
|
|
|
5449 {
|
|
|
5450 struct buffer *b = XBUFFER (XWINDOW (window)->buffer);
|
|
|
5451 fprintf (stderr, " on %s", string_data (XSTRING (b->name)));
|
|
|
5452 }
|
|
|
5453 fprintf (stderr, " 0x%x>", XWINDOW (window)->header.uid);
|
|
|
5454
|
|
|
5455 while (!NILP (child))
|
|
|
5456 {
|
|
|
5457 debug_print_window (child, level + 1);
|
|
|
5458 child = Fwindow_next_child (child);
|
|
|
5459 }
|
|
|
5460 }
|
|
|
5461
|
|
|
5462 void debug_print_windows (struct frame *f);
|
|
|
5463 void
|
|
|
5464 debug_print_windows (struct frame *f)
|
|
|
5465 {
|
|
|
5466 debug_print_window (f->root_window, 0);
|
|
|
5467 fprintf (stderr, "\n");
|
|
|
5468 }
|
|
|
5469 #endif /* DEBUG_XEMACS */
|
|
|
5470
|
|
|
5471
|
|
|
5472 /************************************************************************/
|
|
|
5473 /* initialization */
|
|
|
5474 /************************************************************************/
|
|
|
5475
|
|
|
5476 void
|
|
|
5477 syms_of_window (void)
|
|
|
5478 {
|
|
|
5479 defsymbol (&Qwindowp, "windowp");
|
|
|
5480 defsymbol (&Qwindow_live_p, "window-live-p");
|
|
|
5481 defsymbol (&Qwindow_configurationp, "window-configuration-p");
|
|
|
5482 defsymbol (&Qscroll_up, "scroll-up");
|
|
|
5483 defsymbol (&Qscroll_down, "scroll-down");
|
|
|
5484 defsymbol (&Qtemp_buffer_show_hook, "temp-buffer-show-hook");
|
|
|
5485 defsymbol (&Qdisplay_buffer, "display-buffer");
|
|
|
5486
|
|
|
5487 #ifdef MEMORY_USAGE_STATS
|
|
|
5488 defsymbol (&Qface_cache, "face-cache");
|
|
|
5489 defsymbol (&Qglyph_cache, "glyph-cache");
|
|
|
5490 defsymbol (&Qline_start_cache, "line-start-cache");
|
|
|
5491 #ifdef HAVE_SCROLLBARS
|
|
|
5492 defsymbol (&Qscrollbar_instances, "scrollbar-instances");
|
|
|
5493 #endif
|
|
|
5494 defsymbol (&Qother_redisplay, "other-redisplay");
|
|
|
5495 /* Qother in general.c */
|
|
|
5496 #endif
|
|
|
5497
|
|
|
5498 defsubr (&Sselected_window);
|
|
|
5499 defsubr (&Sminibuffer_window);
|
|
|
5500 defsubr (&Swindow_minibuffer_p);
|
|
|
5501 defsubr (&Swindowp);
|
|
|
5502 defsubr (&Swindow_live_p);
|
|
|
5503 defsubr (&Swindow_first_hchild);
|
|
|
5504 defsubr (&Swindow_first_vchild);
|
|
|
5505 defsubr (&Swindow_next_child);
|
|
|
5506 defsubr (&Swindow_previous_child);
|
|
|
5507 defsubr (&Swindow_parent);
|
|
|
5508 defsubr (&Swindow_lowest_p);
|
|
|
5509 defsubr (&Swindow_highest_p);
|
|
|
5510 defsubr (&Swindow_leftmost_p);
|
|
|
5511 defsubr (&Swindow_rightmost_p);
|
|
|
5512 defsubr (&Spos_visible_in_window_p);
|
|
|
5513 defsubr (&Swindow_buffer);
|
|
|
5514 defsubr (&Swindow_frame);
|
|
|
5515 defsubr (&Swindow_height);
|
|
|
5516 defsubr (&Swindow_displayed_height);
|
|
|
5517 defsubr (&Swindow_width);
|
|
|
5518 defsubr (&Swindow_pixel_height);
|
|
|
5519 defsubr (&Swindow_pixel_width);
|
|
|
5520 defsubr (&Swindow_hscroll);
|
|
|
5521 #if 0 /* bogus RMS crock */
|
|
|
5522 defsubr (&Swindow_redisplay_end_trigger);
|
|
|
5523 defsubr (&Sset_window_redisplay_end_trigger);
|
|
|
5524 #endif
|
|
|
5525 defsubr (&Sset_window_hscroll);
|
|
|
5526 defsubr (&Swindow_pixel_edges);
|
|
|
5527 defsubr (&Swindow_point);
|
|
|
5528 defsubr (&Swindow_start);
|
|
|
5529 defsubr (&Swindow_end);
|
|
|
5530 defsubr (&Sset_window_point);
|
|
|
5531 defsubr (&Sset_window_start);
|
|
|
5532 defsubr (&Swindow_dedicated_p);
|
|
|
5533 defsubr (&Sset_window_dedicated_p);
|
|
|
5534 defsubr (&Snext_window);
|
|
|
5535 defsubr (&Sprevious_window);
|
|
|
5536 defsubr (&Snext_vertical_window);
|
|
|
5537 defsubr (&Sother_window);
|
|
|
5538 defsubr (&Sget_lru_window);
|
|
|
5539 defsubr (&Sget_largest_window);
|
|
|
5540 defsubr (&Sget_buffer_window);
|
|
|
5541 defsubr (&Swindow_left_margin_pixel_width);
|
|
|
5542 defsubr (&Swindow_right_margin_pixel_width);
|
|
|
5543 defsubr (&Sdelete_other_windows);
|
|
|
5544 defsubr (&Sdelete_windows_on);
|
|
|
5545 defsubr (&Sreplace_buffer_in_windows);
|
|
|
5546 defsubr (&Sdelete_window);
|
|
|
5547 defsubr (&Sset_window_buffer);
|
|
|
5548 defsubr (&Sselect_window);
|
|
|
5549 defsubr (&Ssplit_window);
|
|
|
5550 defsubr (&Senlarge_window);
|
|
|
5551 defsubr (&Sshrink_window);
|
|
|
5552 defsubr (&Sscroll_up);
|
|
|
5553 defsubr (&Sscroll_down);
|
|
|
5554 defsubr (&Sscroll_left);
|
|
|
5555 defsubr (&Sscroll_right);
|
|
|
5556 defsubr (&Sother_window_for_scrolling);
|
|
|
5557 defsubr (&Sscroll_other_window);
|
|
|
5558 defsubr (&Srecenter);
|
|
|
5559 defsubr (&Smove_to_window_line);
|
|
|
5560 #ifdef MEMORY_USAGE_STATS
|
|
|
5561 defsubr (&Swindow_memory_usage);
|
|
|
5562 #endif
|
|
|
5563 defsubr (&Swindow_configuration_p);
|
|
|
5564 defsubr (&Sset_window_configuration);
|
|
|
5565 defsubr (&Scurrent_window_configuration);
|
|
|
5566 defsubr (&Ssave_window_excursion);
|
|
|
5567 }
|
|
|
5568
|
|
|
5569 void
|
|
|
5570 vars_of_window (void)
|
|
|
5571 {
|
|
|
5572 /* Make sure all windows get marked */
|
|
|
5573 minibuf_window = Qnil;
|
|
|
5574 staticpro (&minibuf_window);
|
|
|
5575
|
|
|
5576 DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /*
|
|
|
5577 *Non-nil means to scroll if point lands on a line which is clipped.
|
|
|
5578 */ );
|
|
|
5579 scroll_on_clipped_lines = 1;
|
|
|
5580
|
|
|
5581 DEFVAR_LISP ("temp-buffer-show-hook", &Vtemp_buffer_show_hook /*
|
|
|
5582 See `temp-buffer-show-function'.
|
|
|
5583 */ );
|
|
|
5584 Vtemp_buffer_show_hook = Qnil;
|
|
|
5585
|
|
|
5586 DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function /*
|
|
|
5587 Non-nil means call as function to display a help buffer.
|
|
|
5588 The function is called with one argument, the buffer to be displayed.
|
|
|
5589 Used by `with-output-to-temp-buffer'.
|
|
|
5590 If this function is used, then it must do the entire job of showing
|
|
|
5591 the buffer; `temp-buffer-show-hook' is not run unless this function runs it.
|
|
|
5592 */ );
|
|
|
5593 Vtemp_buffer_show_function = Qnil;
|
|
|
5594
|
|
|
5595 DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuf_scroll_window /*
|
|
|
5596 Non-nil means it is the window that \\<minibuffer-local-map>\\[scroll-other-window] in minibuffer should scroll.
|
|
|
5597 */ );
|
|
|
5598 Vminibuf_scroll_window = Qnil;
|
|
|
5599
|
|
|
5600 DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer /*
|
|
|
5601 If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window.
|
|
|
5602 */ );
|
|
|
5603 Vother_window_scroll_buffer = Qnil;
|
|
|
5604
|
|
|
5605 DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /*
|
|
|
5606 *Number of lines of continuity when scrolling by screenfuls.
|
|
|
5607 */ );
|
|
|
5608 next_screen_context_lines = 2;
|
|
|
5609
|
|
|
5610 DEFVAR_INT ("window-min-height", &window_min_height /*
|
|
|
5611 *Delete any window less than this tall (including its modeline).
|
|
|
5612 */ );
|
|
|
5613 window_min_height = 4;
|
|
|
5614
|
|
|
5615 DEFVAR_INT ("window-min-width", &window_min_width /*
|
|
|
5616 *Delete any window less than this wide.
|
|
|
5617 */ );
|
|
|
5618 window_min_width = 10;
|
|
|
5619
|
|
|
5620 {
|
|
|
5621 int i;
|
|
|
5622
|
|
|
5623 for (i = 0; i < countof (Vwindow_configuration_free_list); i++)
|
|
|
5624 {
|
|
|
5625 Vwindow_configuration_free_list[i] =
|
|
|
5626 make_lcrecord_list (sizeof_window_config_for_n_windows (i + 1),
|
|
|
5627 lrecord_window_configuration);
|
|
|
5628 staticpro (&Vwindow_configuration_free_list[i]);
|
|
|
5629 }
|
|
|
5630 }
|
|
|
5631 }
|
|
|
5632
|
|
|
5633 void
|
|
|
5634 specifier_vars_of_window (void)
|
|
|
5635 {
|
|
|
5636 DEFVAR_SPECIFIER ("modeline-shadow-thickness", &Vmodeline_shadow_thickness /*
|
|
|
5637 *How thick to draw 3D shadows around modelines.
|
|
|
5638 If this is set to 0, modelines will be the traditional 2D. Sizes above
|
|
|
5639 10 will be accepted but the maximum thickness that will be drawn is 10.
|
|
|
5640 This is a specifier; use `set-specifier' to change it.
|
|
|
5641 */ );
|
|
|
5642 Vmodeline_shadow_thickness = Fmake_specifier (Qinteger);
|
|
|
5643 /* The initial value for modeline-shadow-thickness is 2, but if the
|
|
|
5644 user removes all specifications we provide a fallback value of 0,
|
|
|
5645 which is probably what was expected. */
|
|
|
5646 set_specifier_fallback (Vmodeline_shadow_thickness,
|
|
|
5647 list1 (Fcons (Qnil, Qzero)));
|
|
|
5648 Fadd_spec_to_specifier (Vmodeline_shadow_thickness, make_int (2),
|
|
|
5649 Qnil, Qnil, Qnil);
|
|
|
5650 set_specifier_caching (Vmodeline_shadow_thickness,
|
|
|
5651 slot_offset (struct window,
|
|
|
5652 modeline_shadow_thickness),
|
|
|
5653 modeline_shadow_thickness_changed,
|
|
|
5654 0, 0);
|
|
|
5655
|
|
|
5656 DEFVAR_SPECIFIER ("has-modeline-p", &Vhas_modeline_p /*
|
|
|
5657 *Whether the modeline should be displayed.
|
|
|
5658 This is a specifier; use `set-specifier' to change it.
|
|
|
5659 */ );
|
|
|
5660 Vhas_modeline_p = Fmake_specifier (Qboolean);
|
|
|
5661 set_specifier_fallback (Vhas_modeline_p,
|
|
|
5662 list1 (Fcons (Qnil, Qt)));
|
|
|
5663 set_specifier_caching (Vhas_modeline_p,
|
|
|
5664 slot_offset (struct window,
|
|
|
5665 has_modeline_p),
|
|
|
5666 /* #### It's strange that we need a special
|
|
|
5667 flag to indicate that the shadow-thickness
|
|
|
5668 has changed, but not one to indicate that
|
|
|
5669 the modeline has been turned off or on. */
|
|
|
5670 some_window_value_changed,
|
|
|
5671 0, 0);
|
|
|
5672 }
|
