1 /* Define frame-object for GNU Emacs.
2    Copyright (C) 1993-1994, 1999-2021 Free Software Foundation, Inc.
3 
4 This file is part of GNU Emacs.
5 
6 GNU Emacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or (at
9 your option) any later version.
10 
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 GNU General Public License for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
18 
19 #ifndef EMACS_FRAME_H
20 #define EMACS_FRAME_H
21 
22 #include "termhooks.h"
23 #include "window.h"
24 
25 INLINE_HEADER_BEGIN
26 
27 enum vertical_scroll_bar_type
28 {
29   vertical_scroll_bar_none,
30   vertical_scroll_bar_left,
31   vertical_scroll_bar_right
32 };
33 
34 #ifdef HAVE_WINDOW_SYSTEM
35 
36 enum fullscreen_type
37 {
38   FULLSCREEN_NONE,
39   FULLSCREEN_WIDTH     = 0x1,
40   FULLSCREEN_HEIGHT    = 0x2,
41   FULLSCREEN_BOTH      = 0x3, /* Not a typo but means "width and height".  */
42   FULLSCREEN_MAXIMIZED = 0x4,
43 #ifdef HAVE_NTGUI
44   FULLSCREEN_WAIT      = 0x8
45 #endif
46 };
47 
48 enum z_group
49 {
50   z_group_none,
51   z_group_above,
52   z_group_below,
53   z_group_above_suspended,
54 };
55 
56 enum internal_border_part
57   {
58    INTERNAL_BORDER_NONE,
59    INTERNAL_BORDER_LEFT_EDGE,
60    INTERNAL_BORDER_TOP_LEFT_CORNER,
61    INTERNAL_BORDER_TOP_EDGE,
62    INTERNAL_BORDER_TOP_RIGHT_CORNER,
63    INTERNAL_BORDER_RIGHT_EDGE,
64    INTERNAL_BORDER_BOTTOM_RIGHT_CORNER,
65    INTERNAL_BORDER_BOTTOM_EDGE,
66    INTERNAL_BORDER_BOTTOM_LEFT_CORNER,
67   };
68 
69 #ifdef NS_IMPL_COCOA
70 enum ns_appearance_type
71   {
72     ns_appearance_system_default,
73     ns_appearance_aqua,
74     ns_appearance_vibrant_dark
75   };
76 #endif
77 #endif /* HAVE_WINDOW_SYSTEM */
78 
79 /* The structure representing a frame.  */
80 
81 struct frame
82 {
83   union vectorlike_header header;
84 
85   /* All Lisp_Object components must come first.
86      That ensures they are all aligned normally.  */
87 
88   /* Name of this frame: a Lisp string.  It is used for looking up resources,
89      as well as for the title in some cases.  */
90   Lisp_Object name;
91 
92   /* The name to use for the icon, the last time
93      it was refreshed.  nil means not explicitly specified.  */
94   Lisp_Object icon_name;
95 
96   /* This is the frame title specified explicitly, if any.
97      Usually it is nil.  */
98   Lisp_Object title;
99 
100 #if defined (HAVE_WINDOW_SYSTEM)
101   /* This frame's parent frame, if it has one.  */
102   Lisp_Object parent_frame;
103 #endif /* HAVE_WINDOW_SYSTEM */
104 
105   /* The frame which should receive keystrokes that occur in this
106      frame, or nil if they should go to the frame itself.  This is
107      usually nil, but if the frame is minibufferless, we can use this
108      to redirect keystrokes to a surrogate minibuffer frame when
109      needed.
110 
111      Note that a value of nil is different from having the field point
112      to the frame itself.  Whenever the Fselect_frame function is used
113      to shift from one frame to the other, any redirections to the
114      original frame are shifted to the newly selected frame; if
115      focus_frame is nil, Fselect_frame will leave it alone.  */
116   Lisp_Object focus_frame;
117 
118   /* This frame's root window.  Every frame has one.
119      If the frame has only a minibuffer window, this is it.
120      Otherwise, if the frame has a minibuffer window, this is its sibling.  */
121   Lisp_Object root_window;
122 
123   /* This frame's selected window.
124      Each frame has its own window hierarchy
125      and one of the windows in it is selected within the frame.
126      The selected window of the selected frame is Emacs's selected window.  */
127   Lisp_Object selected_window;
128 
129   /* This frame's selected window when run_window_change_functions was
130      called the last time on this frame.  */
131   Lisp_Object old_selected_window;
132 
133   /* This frame's minibuffer window.
134      Most frames have their own minibuffer windows,
135      but only the selected frame's minibuffer window
136      can actually appear to exist.  */
137   Lisp_Object minibuffer_window;
138 
139   /* Parameter alist of this frame.
140      These are the parameters specified when creating the frame
141      or modified with modify-frame-parameters.  */
142   Lisp_Object param_alist;
143 
144   /* List of scroll bars on this frame.
145      Actually, we don't specify exactly what is stored here at all; the
146      scroll bar implementation code can use it to store anything it likes.
147      This field is marked by the garbage collector.  It is here
148      instead of in the `device' structure so that the garbage
149      collector doesn't need to look inside the window-system-dependent
150      structure.  */
151   Lisp_Object scroll_bars;
152   Lisp_Object condemned_scroll_bars;
153 
154   /* Vector describing the items to display in the menu bar.
155      Each item has four elements in this vector.
156      They are KEY, STRING, SUBMAP, and HPOS.
157      (HPOS is not used in when the X toolkit is in use.)
158      There are four additional elements of nil at the end, to terminate.  */
159   Lisp_Object menu_bar_items;
160 
161   /* Hash table of FACE-NAME keys and FACE-VECTOR-DATA values.  */
162   Lisp_Object face_hash_table;
163 
164   /* A vector that records the entire structure of this frame's menu bar.
165      For the format of the data, see extensive comments in xmenu.c.
166      Only the X toolkit version uses this.  */
167   Lisp_Object menu_bar_vector;
168 
169   /* Predicate for selecting buffers for other-buffer.  */
170   Lisp_Object buffer_predicate;
171 
172   /* List of buffers viewed in this frame, for other-buffer.  */
173   Lisp_Object buffer_list;
174 
175   /* List of buffers that were viewed, then buried in this frame.  The
176      most recently buried buffer is first.  For last-buffer.  */
177   Lisp_Object buried_buffer_list;
178 
179 #if defined (HAVE_X_WINDOWS) && ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
180   /* A dummy window used to display menu bars under X when no X
181      toolkit support is available.  */
182   Lisp_Object menu_bar_window;
183 #endif
184 
185 #if defined (HAVE_WINDOW_SYSTEM)
186   /* A window used to display the tab-bar of a frame.  */
187   Lisp_Object tab_bar_window;
188 
189   /* Desired and current contents displayed in that window.  */
190   Lisp_Object desired_tab_bar_string;
191   Lisp_Object current_tab_bar_string;
192 #endif
193 
194 #if defined (HAVE_WINDOW_SYSTEM) && ! defined (HAVE_EXT_TOOL_BAR)
195   /* A window used to display the tool-bar of a frame.  */
196   Lisp_Object tool_bar_window;
197 
198   /* Desired and current contents displayed in that window.  */
199   Lisp_Object desired_tool_bar_string;
200   Lisp_Object current_tool_bar_string;
201 #endif
202 
203 #ifdef USE_GTK
204   /* Where tool bar is, can be left, right, top or bottom.
205      Except with GTK, the only supported position is `top'.  */
206   Lisp_Object tool_bar_position;
207 #endif
208 
209 #if defined (HAVE_XFT) || defined (HAVE_FREETYPE)
210   /* List of data specific to font-driver and frame, but common to faces.  */
211   Lisp_Object font_data;
212 #endif
213 
214   /* Desired and current tab-bar items.  */
215   Lisp_Object tab_bar_items;
216 
217   /* Desired and current tool-bar items.  */
218   Lisp_Object tool_bar_items;
219   /* tool_bar_items should be the last Lisp_Object member.  */
220 
221   /* Cache of realized faces.  */
222   struct face_cache *face_cache;
223 
224   /* Tab-bar item index of the item on which a mouse button was pressed.  */
225   int last_tab_bar_item;
226 
227 #if defined (HAVE_WINDOW_SYSTEM) && ! defined (HAVE_EXT_TOOL_BAR)
228   /* Tool-bar item index of the item on which a mouse button was pressed.  */
229   int last_tool_bar_item;
230 #endif
231 
232   /* Number of elements in `menu_bar_vector' that have meaningful data.  */
233   int menu_bar_items_used;
234 
235 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI)
236   /* A buffer to hold the frame's name.  Since this is used by the
237      window system toolkit, we can't use the Lisp string's pointer
238      (`name', above) because it might get relocated.  */
239   char *namebuf;
240 #endif
241 
242 #ifdef USE_X_TOOLKIT
243   /* Used to pass geometry parameters to toolkit functions.  */
244   char *shell_position;
245 #endif
246 
247   /* Glyph pool and matrix.  */
248   struct glyph_pool *current_pool;
249   struct glyph_pool *desired_pool;
250   struct glyph_matrix *desired_matrix;
251   struct glyph_matrix *current_matrix;
252 
253   /* Bitfield area begins here.  Keep them together to avoid extra padding.  */
254 
255   /* True means that glyphs on this frame have been initialized so it can
256      be used for output.  */
257   bool_bf glyphs_initialized_p : 1;
258 
259   /* Set to true in adjust_frame_size when one of the frame's sizes
260      changed.  Clear the frame in clear_garbaged_frames if set.  */
261   bool_bf resized_p : 1;
262 
263   /* Set to true if the default face for the frame has been
264      realized.  Reset to zero whenever the default face changes.
265      Used to see the difference between a font change and face change.  */
266   bool_bf default_face_done_p : 1;
267 
268   /* Set to true if this frame has already been hscrolled during
269      current redisplay.  */
270   bool_bf already_hscrolled_p : 1;
271 
272   /* Set to true when current redisplay has updated frame.  */
273   bool_bf updated_p : 1;
274 
275 #if defined (HAVE_WINDOW_SYSTEM)
276   /* Set to true to minimize tab-bar height even when
277      auto-resize-tab-bar is set to grow-only.  */
278   bool_bf minimize_tab_bar_window_p : 1;
279 #endif
280 
281 #if defined (HAVE_WINDOW_SYSTEM) && ! defined (HAVE_EXT_TOOL_BAR)
282   /* Set to true to minimize tool-bar height even when
283      auto-resize-tool-bar is set to grow-only.  */
284   bool_bf minimize_tool_bar_window_p : 1;
285 #endif
286 
287 #ifdef HAVE_EXT_TOOL_BAR
288   /* True means using a tool bar that comes from the toolkit.  */
289   bool_bf external_tool_bar : 1;
290 #endif
291 
292   /* True means that fonts have been loaded since the last glyph
293      matrix adjustments.  */
294   bool_bf fonts_changed : 1;
295 
296   /* True means that cursor type has been changed.  */
297   bool_bf cursor_type_changed : 1;
298 
299   /* True if it needs to be redisplayed.  */
300   bool_bf redisplay : 1;
301 
302 #ifdef HAVE_EXT_MENU_BAR
303   /* True means using a menu bar that comes from the toolkit.  */
304   bool_bf external_menu_bar : 1;
305 #endif
306 
307   /* Next two bitfields are mutually exclusive.  They might both be
308      zero if the frame has been made invisible without an icon.  */
309 
310   /* Nonzero if the frame is currently displayed; we check
311      it to see if we should bother updating the frame's contents.
312 
313      On ttys and on Windows NT/9X, to avoid wasting effort updating
314      visible frames that are actually completely obscured by other
315      windows on the display, we bend the meaning of visible slightly:
316      if equal to 2, then the frame is obscured - we still consider
317      it to be "visible" as seen from lisp, but we don't bother
318      updating it.  */
319   unsigned visible : 2;
320 
321   /* True if the frame is currently iconified.  Do not
322      set this directly, use SET_FRAME_ICONIFIED instead.  */
323   bool_bf iconified : 1;
324 
325   /* True if this frame should be fully redisplayed.  Disables all
326      optimizations while rebuilding matrices and redrawing.  */
327   bool_bf garbaged : 1;
328 
329   /* False means, if this frame has just one window,
330      show no modeline for that window.  */
331   bool_bf wants_modeline : 1;
332 
333   /* True means raise this frame to the top of the heap when selected.  */
334   bool_bf auto_raise : 1;
335 
336   /* True means lower this frame to the bottom of the stack when left.  */
337   bool_bf auto_lower : 1;
338 
339   /* True if frame's root window can't be split.  */
340   bool_bf no_split : 1;
341 
342   /* If this is set, then Emacs won't change the frame name to indicate
343      the current buffer, etcetera.  If the user explicitly sets the frame
344      name, this gets set.  If the user sets the name to Qnil, this is
345      cleared.  */
346   bool_bf explicit_name : 1;
347 
348   /* True if at least one window on this frame changed since the last
349      call of run_window_change_functions.  Changes are either "state
350      changes" (a window has been created, deleted or got assigned
351      another buffer) or "size changes" (the total or body size of a
352      window changed).  run_window_change_functions exits early unless
353      either this flag is true or a window selection happened on this
354      frame.  */
355   bool_bf window_change : 1;
356 
357   /* True if running window state change functions has been explicitly
358      requested for this frame since last redisplay.  */
359   bool_bf window_state_change : 1;
360 
361   /* True if the mouse has moved on this display device
362      since the last time we checked.  */
363   bool_bf mouse_moved : 1;
364 
365   /* True means that the pointer is invisible.  */
366   bool_bf pointer_invisible : 1;
367 
368   /* True means that all windows except mini-window and
369      selected window on this frame have frozen window starts.  */
370   bool_bf frozen_window_starts : 1;
371 
372   /* The output method says how the contents of this frame are
373      displayed.  It could be using termcap, or using an X window.
374      This must be the same as the terminal->type. */
375   ENUM_BF (output_method) output_method : 3;
376 
377 #ifdef HAVE_WINDOW_SYSTEM
378   /* True if this frame is a tooltip frame.  */
379   bool_bf tooltip : 1;
380 
381   /* See FULLSCREEN_ enum on top.  */
382   ENUM_BF (fullscreen_type) want_fullscreen : 4;
383 
384   /* If not vertical_scroll_bar_none, we should actually
385      display the scroll bars of this type on this frame.  */
386   ENUM_BF (vertical_scroll_bar_type) vertical_scroll_bar_type : 2;
387 
388   /* Nonzero if we should actually display horizontal scroll bars on this frame.  */
389   bool_bf horizontal_scroll_bars : 1;
390 
391   /* True if this is an undecorated frame.  */
392   bool_bf undecorated : 1;
393 
394 #ifndef HAVE_NTGUI
395   /* True if this is an override_redirect frame.  */
396   bool_bf override_redirect : 1;
397 #endif
398 
399   /* Nonzero if this frame's icon should not appear on its display's taskbar.  */
400   bool_bf skip_taskbar : 1;
401 
402   /* Nonzero if this frame's window F's X window does not want to
403      receive input focus when it is mapped.  */
404   bool_bf no_focus_on_map : 1;
405 
406   /* Nonzero if this frame's window does not want to receive input focus
407      via mouse clicks or by moving the mouse into it.  */
408   bool_bf no_accept_focus : 1;
409 
410   /* The z-group this frame's window belongs to. */
411   ENUM_BF (z_group) z_group : 2;
412 
413   /* Non-zero if display of truncation and continuation glyphs outside
414      the fringes is suppressed.  */
415   bool_bf no_special_glyphs : 1;
416 #endif /* HAVE_WINDOW_SYSTEM */
417 
418   /* True means set_window_size_hook requests can be processed for
419      this frame.  */
420   bool_bf can_set_window_size : 1;
421 
422   /* Set to true after this frame was made by `make-frame'.  */
423   bool_bf after_make_frame : 1;
424 
425   /* Two sticky flags, that are both false when a frame is created.
426      'display_tab_bar' sets the former to true the first time it
427      displays the tab bar.  When the former is true, the next call of
428      'x_change_tab_bar_height' and associates sets the latter true and
429      tries to adjust the frame height in a way that the now valid pixel
430      height of the tab bar is taken into account by the frame's native
431      height.  */
432   bool_bf tab_bar_redisplayed : 1;
433   bool_bf tab_bar_resized : 1;
434 
435   /* Two sticky flags, that are both false when a frame is created.
436      'redisplay_tool_bar' sets the former to true the first time it
437      displays the tool bar.  When the former is true, the next call of
438      'x_change_tool_bar_height' and associates sets the latter true and
439      tries to adjust the frame height in a way that the now valid pixel
440      height of the tool bar is taken into account by the frame's native
441      height.  */
442   bool_bf tool_bar_redisplayed : 1;
443   bool_bf tool_bar_resized : 1;
444 
445   /* Inhibit implied resize before after_make_frame is set.  */
446   bool_bf inhibit_horizontal_resize : 1;
447   bool_bf inhibit_vertical_resize : 1;
448 
449   /* Non-zero if this frame's faces need to be recomputed.  */
450   bool_bf face_change : 1;
451 
452   /* Non-zero if this frame's image cache and face cache cannot be
453      freed because the frame is in the process of being redisplayed.  */
454   bool_bf inhibit_clear_image_cache : 1;
455 
456   /* True when new_width or new_height were set by change_frame_size,
457      false when they were set by adjust_frame_size internally or not
458      set.  */
459   bool_bf new_size_p : 1;
460 
461   /* True when frame was invisible before first MapNotify event.  Used
462      in X builds only.  */
463   bool_bf was_invisible : 1;
464 
465   /* True when the frame isn't selected, and selecting it in the
466      future should select the mini-window rather than the currently
467      selected window in the frame, assuming there is still an active
468      minibuffer in that mini-window.  */
469   bool_bf select_mini_window_flag : 1;
470   /* Bitfield area ends here.  */
471 
472   /* This frame's change stamp, set the last time window change
473      functions were run for this frame.  Should never be 0 because
474      that's the change stamp of a new window.  A window was not on a
475      frame the last run_window_change_functions was called on it if
476      it's change stamp differs from that of its frame.  */
477   int change_stamp;
478 
479   /* This frame's number of windows, set the last time window change
480      functions were run for this frame.  Should never be 0 even for
481      minibuffer-only frames.  If no window has been added, this allows
482      to detect whether a window was deleted on this frame since the
483      last time run_window_change_functions was called on it.  */
484   ptrdiff_t number_of_windows;
485 
486   /* Number of frame lines (rounded up) of tab bar.  */
487   int tab_bar_lines;
488 
489   /* Height of frame internal tab bar in pixels.  */
490   int tab_bar_height;
491 
492   int n_tab_bar_rows;
493   int n_tab_bar_items;
494 
495   /* Number of frame lines (rounded up) of tool bar.  */
496   int tool_bar_lines;
497 
498   /* Height of frame internal tool bar in pixels.  */
499   int tool_bar_height;
500 
501   int n_tool_bar_rows;
502   int n_tool_bar_items;
503 
504   /* A buffer for decode_mode_line.  */
505   char *decode_mode_spec_buffer;
506 
507   /* See do_line_insertion_deletion_costs for info on these arrays.  */
508   /* Cost of inserting 1 line on this frame.  */
509   int *insert_line_cost;
510   /* Cost of deleting 1 line on this frame.  */
511   int *delete_line_cost;
512   /* Cost of inserting n lines on this frame.  */
513   int *insert_n_lines_cost;
514   /* Cost of deleting n lines on this frame.  */
515   int *delete_n_lines_cost;
516 
517   /* Text width and height of this frame in (and maybe rounded to) frame
518      columns and lines.  */
519   int text_cols, text_lines;
520   /* Text width and height of this frame in pixels.  */
521   int text_width, text_height;
522 
523   /* Native width of this frame in (and maybe rounded to) frame columns
524      and lines.  */
525   int total_cols, total_lines;
526   /* Native width and height of this frame in pixels.  */
527   int pixel_width, pixel_height;
528   /* New native width and height of this frame for pending size change,
529      in pixels.  -1 if no change pending.  */
530   int new_width, new_height;
531 
532   /* Pixel position of the frame window (x and y offsets in root window).  */
533   int left_pos, top_pos;
534 
535   /* This is the gravity value for the specified window position.  */
536   int win_gravity;
537 
538   /* The geometry flags for this window.  */
539   int size_hint_flags;
540 
541   /* Border width of the frame window as known by the (X) window system.  */
542   int border_width;
543 
544   /* Width of child frames' internal border.  Acts as
545      internal_border_width for child frames.  */
546   int child_frame_border_width;
547 
548   /* Width of the internal border.  This is a line of background color
549      just inside the window's border.  When the frame is selected,
550      a highlighting is displayed inside the internal border.  */
551   int internal_border_width;
552 
553   /* Widths of dividers between this frame's windows in pixels.  */
554   int right_divider_width, bottom_divider_width;
555 
556   /* Widths of fringes in pixels.  */
557   int left_fringe_width, right_fringe_width;
558 
559   /* Total width of fringes reserved for drawing truncation bitmaps,
560      continuation bitmaps and alike - REMOVE THIS !!!!.    */
561   int fringe_cols;
562 
563   /* Number of lines of menu bar.  */
564   int menu_bar_lines;
565 
566   /* Pixel height of menubar.  */
567   int menu_bar_height;
568 
569   /* Canonical X unit.  Width of default font, in pixels.  */
570   int column_width;
571 
572   /* Canonical Y unit.  Height of a line, in pixels.  */
573   int line_height;
574 
575   /* The terminal device that this frame uses.  If this is NULL, then
576      the frame has been deleted.  */
577   struct terminal *terminal;
578 
579   /* Device-dependent, frame-local auxiliary data used for displaying
580      the contents.  When the frame is deleted, this data is deleted as
581      well.  */
582   union output_data
583   {
584     struct tty_output *tty;     /* From termchar.h.  */
585     struct x_output *x;         /* From xterm.h.  */
586     struct w32_output *w32;     /* From w32term.h.  */
587     struct ns_output *ns;       /* From nsterm.h.  */
588     struct pgtk_output *pgtk; /* From pgtkterm.h. */
589     struct haiku_output *haiku; /* From haikuterm.h. */
590   }
591   output_data;
592 
593   /* List of font-drivers available on the frame.  */
594   struct font_driver_list *font_driver_list;
595 
596 #if defined (HAVE_X_WINDOWS)
597   /* Used by x_wait_for_event when watching for an X event on this frame.  */
598   int wait_event_type;
599 #endif
600 
601   /* What kind of text cursor should we draw in the future?
602      This should always be filled_box_cursor or bar_cursor.  */
603   enum text_cursor_kinds desired_cursor;
604 
605   /* Width of bar cursor (if we are using that).  */
606   int cursor_width;
607 
608   /* What kind of text cursor should we draw when the cursor blinks off?
609      This can be filled_box_cursor or bar_cursor or no_cursor.  */
610   enum text_cursor_kinds blink_off_cursor;
611 
612   /* Width of bar cursor (if we are using that) for blink-off state.  */
613   int blink_off_cursor_width;
614 
615   /* Configured width of the scroll bar, in pixels and in characters.
616      config_scroll_bar_cols tracks config_scroll_bar_width if the
617      latter is positive; a zero value in config_scroll_bar_width means
618      to compute the actual width on the fly, using config_scroll_bar_cols
619      and the current font width.  */
620   int config_scroll_bar_width;
621   int config_scroll_bar_cols;
622 
623   /* Configured height of the scroll bar, in pixels and in characters.
624      config_scroll_bar_lines tracks config_scroll_bar_height if the
625      latter is positive; a zero value in config_scroll_bar_height means
626      to compute the actual width on the fly, using
627      config_scroll_bar_lines and the current font width.  */
628   int config_scroll_bar_height;
629   int config_scroll_bar_lines;
630 
631   /* The baud rate that was used to calculate costs for this frame.  */
632   intmax_t cost_calculation_baud_rate;
633 
634   /* Frame opacity
635      alpha[0]: alpha transparency of the active frame
636      alpha[1]: alpha transparency of inactive frames
637      Negative values mean not to change alpha.  */
638   double alpha[2];
639 
640   /* Exponent for gamma correction of colors.  1/(VIEWING_GAMMA *
641      SCREEN_GAMMA) where viewing_gamma is 0.4545 and SCREEN_GAMMA is a
642      frame parameter.  0 means don't do gamma correction.  */
643   double gamma;
644 
645   /* Additional space to put between text lines on this frame.  */
646   int extra_line_spacing;
647 
648   /* All display backends seem to need these two pixel values.  */
649   unsigned long background_pixel;
650   unsigned long foreground_pixel;
651 
652 #ifdef NS_IMPL_COCOA
653   /* NSAppearance theme used on this frame.  */
654   enum ns_appearance_type ns_appearance;
655   bool_bf ns_transparent_titlebar;
656 #endif
657 } GCALIGNED_STRUCT;
658 
659 /* Most code should use these functions to set Lisp fields in struct frame.  */
660 
661 INLINE void
fset_buffer_list(struct frame * f,Lisp_Object val)662 fset_buffer_list (struct frame *f, Lisp_Object val)
663 {
664   f->buffer_list = val;
665 }
666 INLINE void
fset_buried_buffer_list(struct frame * f,Lisp_Object val)667 fset_buried_buffer_list (struct frame *f, Lisp_Object val)
668 {
669   f->buried_buffer_list = val;
670 }
671 INLINE void
fset_condemned_scroll_bars(struct frame * f,Lisp_Object val)672 fset_condemned_scroll_bars (struct frame *f, Lisp_Object val)
673 {
674   f->condemned_scroll_bars = val;
675 }
676 INLINE void
fset_face_hash_table(struct frame * f,Lisp_Object val)677 fset_face_hash_table (struct frame *f, Lisp_Object val)
678 {
679   f->face_hash_table = val;
680 }
681 #if defined (HAVE_WINDOW_SYSTEM)
682 INLINE void
fset_parent_frame(struct frame * f,Lisp_Object val)683 fset_parent_frame (struct frame *f, Lisp_Object val)
684 {
685   f->parent_frame = val;
686 }
687 #endif
688 INLINE void
fset_focus_frame(struct frame * f,Lisp_Object val)689 fset_focus_frame (struct frame *f, Lisp_Object val)
690 {
691   f->focus_frame = val;
692 }
693 INLINE void
fset_icon_name(struct frame * f,Lisp_Object val)694 fset_icon_name (struct frame *f, Lisp_Object val)
695 {
696   f->icon_name = val;
697 }
698 INLINE void
fset_menu_bar_items(struct frame * f,Lisp_Object val)699 fset_menu_bar_items (struct frame *f, Lisp_Object val)
700 {
701   f->menu_bar_items = val;
702 }
703 INLINE void
fset_menu_bar_vector(struct frame * f,Lisp_Object val)704 fset_menu_bar_vector (struct frame *f, Lisp_Object val)
705 {
706   f->menu_bar_vector = val;
707 }
708 #if defined (HAVE_X_WINDOWS) && ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
709 INLINE void
fset_menu_bar_window(struct frame * f,Lisp_Object val)710 fset_menu_bar_window (struct frame *f, Lisp_Object val)
711 {
712   f->menu_bar_window = val;
713 }
714 #endif
715 INLINE void
fset_name(struct frame * f,Lisp_Object val)716 fset_name (struct frame *f, Lisp_Object val)
717 {
718   f->name = val;
719 }
720 INLINE void
fset_param_alist(struct frame * f,Lisp_Object val)721 fset_param_alist (struct frame *f, Lisp_Object val)
722 {
723   f->param_alist = val;
724 }
725 INLINE void
fset_root_window(struct frame * f,Lisp_Object val)726 fset_root_window (struct frame *f, Lisp_Object val)
727 {
728   f->root_window = val;
729 }
730 INLINE void
fset_scroll_bars(struct frame * f,Lisp_Object val)731 fset_scroll_bars (struct frame *f, Lisp_Object val)
732 {
733   f->scroll_bars = val;
734 }
735 INLINE void
fset_selected_window(struct frame * f,Lisp_Object val)736 fset_selected_window (struct frame *f, Lisp_Object val)
737 {
738   f->selected_window = val;
739 }
740 INLINE void
fset_old_selected_window(struct frame * f,Lisp_Object val)741 fset_old_selected_window (struct frame *f, Lisp_Object val)
742 {
743   f->old_selected_window = val;
744 }
745 INLINE void
fset_title(struct frame * f,Lisp_Object val)746 fset_title (struct frame *f, Lisp_Object val)
747 {
748   f->title = val;
749 }
750 INLINE void
fset_tab_bar_items(struct frame * f,Lisp_Object val)751 fset_tab_bar_items (struct frame *f, Lisp_Object val)
752 {
753   f->tab_bar_items = val;
754 }
755 #if defined (HAVE_WINDOW_SYSTEM)
756 INLINE void
fset_tab_bar_window(struct frame * f,Lisp_Object val)757 fset_tab_bar_window (struct frame *f, Lisp_Object val)
758 {
759   f->tab_bar_window = val;
760 }
761 INLINE void
fset_current_tab_bar_string(struct frame * f,Lisp_Object val)762 fset_current_tab_bar_string (struct frame *f, Lisp_Object val)
763 {
764   f->current_tab_bar_string = val;
765 }
766 INLINE void
fset_desired_tab_bar_string(struct frame * f,Lisp_Object val)767 fset_desired_tab_bar_string (struct frame *f, Lisp_Object val)
768 {
769   f->desired_tab_bar_string = val;
770 }
771 #endif /* HAVE_WINDOW_SYSTEM */
772 INLINE void
fset_tool_bar_items(struct frame * f,Lisp_Object val)773 fset_tool_bar_items (struct frame *f, Lisp_Object val)
774 {
775   f->tool_bar_items = val;
776 }
777 #ifdef USE_GTK
778 INLINE void
fset_tool_bar_position(struct frame * f,Lisp_Object val)779 fset_tool_bar_position (struct frame *f, Lisp_Object val)
780 {
781   f->tool_bar_position = val;
782 }
783 #endif /* USE_GTK */
784 #if defined (HAVE_WINDOW_SYSTEM) && ! defined (HAVE_EXT_TOOL_BAR)
785 INLINE void
fset_tool_bar_window(struct frame * f,Lisp_Object val)786 fset_tool_bar_window (struct frame *f, Lisp_Object val)
787 {
788   f->tool_bar_window = val;
789 }
790 INLINE void
fset_current_tool_bar_string(struct frame * f,Lisp_Object val)791 fset_current_tool_bar_string (struct frame *f, Lisp_Object val)
792 {
793   f->current_tool_bar_string = val;
794 }
795 INLINE void
fset_desired_tool_bar_string(struct frame * f,Lisp_Object val)796 fset_desired_tool_bar_string (struct frame *f, Lisp_Object val)
797 {
798   f->desired_tool_bar_string = val;
799 }
800 #endif /* HAVE_WINDOW_SYSTEM && !USE_GTK && !HAVE_NS */
801 
802 INLINE double
NUMVAL(Lisp_Object x)803 NUMVAL (Lisp_Object x)
804 {
805   return NUMBERP (x) ? XFLOATINT (x) : -1;
806 }
807 
808 INLINE double
default_pixels_per_inch_x(void)809 default_pixels_per_inch_x (void)
810 {
811   Lisp_Object v = (CONSP (Vdisplay_pixels_per_inch)
812 		   ? XCAR (Vdisplay_pixels_per_inch)
813 		   : Vdisplay_pixels_per_inch);
814   return NUMVAL (v) > 0 ? NUMVAL (v) : 72.0;
815 }
816 
817 INLINE double
default_pixels_per_inch_y(void)818 default_pixels_per_inch_y (void)
819 {
820   Lisp_Object v = (CONSP (Vdisplay_pixels_per_inch)
821 		   ? XCDR (Vdisplay_pixels_per_inch)
822 		   : Vdisplay_pixels_per_inch);
823   return NUMVAL (v) > 0 ? NUMVAL (v) : 72.0;
824 }
825 
826 #define FRAME_KBOARD(f) ((f)->terminal->kboard)
827 
828 /* Return a pointer to the image cache of frame F.  */
829 #define FRAME_IMAGE_CACHE(F) ((F)->terminal->image_cache)
830 
831 #define XFRAME(p) \
832   (eassert (FRAMEP (p)), XUNTAG (p, Lisp_Vectorlike, struct frame))
833 #define XSETFRAME(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_FRAME))
834 
835 /* Given a window, return its frame as a Lisp_Object.  */
836 #define WINDOW_FRAME(w) ((w)->frame)
837 
838 /* Test a frame for particular kinds of display methods.  */
839 #define FRAME_INITIAL_P(f) ((f)->output_method == output_initial)
840 #define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
841 #define FRAME_X_P(f) ((f)->output_method == output_x_window)
842 #ifndef HAVE_NTGUI
843 #define FRAME_W32_P(f) false
844 #else
845 #define FRAME_W32_P(f) ((f)->output_method == output_w32)
846 #endif
847 #ifndef MSDOS
848 #define FRAME_MSDOS_P(f) false
849 #else
850 #define FRAME_MSDOS_P(f) ((f)->output_method == output_msdos_raw)
851 #endif
852 #ifndef HAVE_NS
853 #define FRAME_NS_P(f) false
854 #else
855 #define FRAME_NS_P(f) ((f)->output_method == output_ns)
856 #endif
857 #ifndef HAVE_PGTK
858 #define FRAME_PGTK_P(f) false
859 #else
860 #define FRAME_PGTK_P(f) ((f)->output_method == output_pgtk)
861 #endif
862 #ifndef HAVE_HAIKU
863 #define FRAME_HAIKU_P(f) false
864 #else
865 #define FRAME_HAIKU_P(f) ((f)->output_method == output_haiku)
866 #endif
867 
868 /* FRAME_WINDOW_P tests whether the frame is a graphical window system
869    frame.  */
870 #ifdef HAVE_X_WINDOWS
871 #define FRAME_WINDOW_P(f) FRAME_X_P (f)
872 #endif
873 #ifdef HAVE_NTGUI
874 #define FRAME_WINDOW_P(f) FRAME_W32_P (f)
875 #endif
876 #ifdef HAVE_NS
877 #define FRAME_WINDOW_P(f) FRAME_NS_P(f)
878 #endif
879 #ifdef HAVE_PGTK
880 #define FRAME_WINDOW_P(f) FRAME_PGTK_P(f)
881 #endif
882 #ifdef HAVE_HAIKU
883 #define FRAME_WINDOW_P(f) FRAME_HAIKU_P (f)
884 #endif
885 #ifndef FRAME_WINDOW_P
886 #define FRAME_WINDOW_P(f) ((void) (f), false)
887 #endif
888 
889 /* Dots per inch of the screen the frame F is on.  */
890 
891 #ifdef HAVE_WINDOW_SYSTEM
892 
893 #define FRAME_RES_X(f)						\
894   (eassert (FRAME_WINDOW_P (f)), FRAME_DISPLAY_INFO (f)->resx)
895 #define FRAME_RES_Y(f)						\
896   (eassert (FRAME_WINDOW_P (f)), FRAME_DISPLAY_INFO (f)->resy)
897 
898 #else /* !HAVE_WINDOW_SYSTEM */
899 
900 /* Defaults when no window system available.  */
901 
902 #define FRAME_RES_X(f) default_pixels_per_inch_x ()
903 #define FRAME_RES_Y(f) default_pixels_per_inch_y ()
904 
905 #endif /* HAVE_WINDOW_SYSTEM */
906 
907 /* Return a pointer to the structure holding information about the
908    region of text, if any, that is currently shown in mouse-face on
909    frame F.  We need to define two versions because a TTY-only build
910    does not have FRAME_DISPLAY_INFO.  */
911 #ifdef HAVE_WINDOW_SYSTEM
912 # define MOUSE_HL_INFO(F)					\
913   (FRAME_WINDOW_P(F)						\
914    ? &FRAME_DISPLAY_INFO(F)->mouse_highlight			\
915    : &(F)->output_data.tty->display_info->mouse_highlight)
916 #else
917 # define MOUSE_HL_INFO(F)					\
918   (&(F)->output_data.tty->display_info->mouse_highlight)
919 #endif
920 
921 /* True if frame F is still alive (not deleted).  */
922 #define FRAME_LIVE_P(f) ((f)->terminal != 0)
923 
924 /* True if frame F is a minibuffer-only frame.  */
925 #define FRAME_MINIBUF_ONLY_P(f) \
926   EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
927 
928 /* True if frame F contains it's own minibuffer window.  Frame always has
929    minibuffer window, but it could use minibuffer window of another frame.  */
930 #define FRAME_HAS_MINIBUF_P(f)					\
931   (WINDOWP (f->minibuffer_window)				\
932    && XFRAME (XWINDOW (f->minibuffer_window)->frame) == f)
933 
934 /* Scale factor of frame F.  */
935 #if defined HAVE_NS
936 # define FRAME_SCALE_FACTOR(f) (FRAME_NS_P (f) ? ns_frame_scale_factor (f) : 1)
937 #elif defined HAVE_PGTK
938 # define FRAME_SCALE_FACTOR(f) (FRAME_PGTK_P (f) ? pgtk_frame_scale_factor (f) : 1)
939 #else
940 # define FRAME_SCALE_FACTOR(f) 1
941 #endif
942 
943 /* Native width and height of frame F, in pixels and frame
944    columns/lines.  */
945 #define FRAME_PIXEL_WIDTH(f) ((f)->pixel_width)
946 #define FRAME_PIXEL_HEIGHT(f) ((f)->pixel_height)
947 #define FRAME_TOTAL_COLS(f) ((f)->total_cols)
948 #define FRAME_TOTAL_LINES(f) ((f)->total_lines)
949 
950 /* Text width and height of frame F, in pixels and frame
951    columns/lines.  */
952 #define FRAME_TEXT_WIDTH(f) (f)->text_width
953 #define FRAME_TEXT_HEIGHT(f) (f)->text_height
954 #define FRAME_COLS(f) ((f)->text_cols)
955 #define FRAME_LINES(f) ((f)->text_lines)
956 
957 /* True if this frame should display an external menu bar.  */
958 #ifdef HAVE_EXT_MENU_BAR
959 #define FRAME_EXTERNAL_MENU_BAR(f) (f)->external_menu_bar
960 #else
961 #define FRAME_EXTERNAL_MENU_BAR(f) false
962 #endif
963 
964 /* Size of frame F's internal menu bar in frame lines and pixels.  */
965 #define FRAME_MENU_BAR_LINES(f) (f)->menu_bar_lines
966 #define FRAME_MENU_BAR_HEIGHT(f) (f)->menu_bar_height
967 
968 /* Size of frame F's tab bar in frame lines and pixels.  */
969 #define FRAME_TAB_BAR_LINES(f) (f)->tab_bar_lines
970 #define FRAME_TAB_BAR_HEIGHT(f) (f)->tab_bar_height
971 
972 /* True if this frame should display an external tool bar.  */
973 #ifdef HAVE_EXT_TOOL_BAR
974 #define FRAME_EXTERNAL_TOOL_BAR(f) (f)->external_tool_bar
975 #else
976 #define FRAME_EXTERNAL_TOOL_BAR(f) false
977 #endif
978 
979 /* This is really supported only with GTK.  */
980 #ifdef USE_GTK
981 #define FRAME_TOOL_BAR_POSITION(f) (f)->tool_bar_position
982 #else
983 #define FRAME_TOOL_BAR_POSITION(f) ((void) (f), Qtop)
984 #endif
985 
986 /* Size of frame F's internal tool bar in frame lines and pixels.  */
987 #define FRAME_TOOL_BAR_LINES(f) (f)->tool_bar_lines
988 #define FRAME_TOOL_BAR_HEIGHT(f) (f)->tool_bar_height
989 
990 /* Height of frame F's top margin in frame lines.  */
991 #define FRAME_TOP_MARGIN(F)			\
992   (FRAME_MENU_BAR_LINES (F)			\
993    + FRAME_TAB_BAR_LINES (F)			\
994    + FRAME_TOOL_BAR_LINES (F))
995 
996 /* Pixel height of frame F's top margin.  */
997 #define FRAME_TOP_MARGIN_HEIGHT(F)		\
998   (FRAME_MENU_BAR_HEIGHT (F)			\
999    + FRAME_TAB_BAR_HEIGHT (F)			\
1000    + FRAME_TOOL_BAR_HEIGHT (F))
1001 
1002 /* True if frame F is currently visible.  */
1003 #define FRAME_VISIBLE_P(f) (f)->visible
1004 
1005 /* True if frame F is currently visible but hidden.  */
1006 #define FRAME_OBSCURED_P(f) ((f)->visible > 1)
1007 
1008 /* True if frame F is currently iconified.  */
1009 #define FRAME_ICONIFIED_P(f) (f)->iconified
1010 
1011 /* Mark frame F as currently garbaged.  */
1012 #define SET_FRAME_GARBAGED(f)				\
1013   (frame_garbaged = true, fset_redisplay (f), f->garbaged = true)
1014 
1015 /* True if frame F is currently garbaged.  */
1016 #define FRAME_GARBAGED_P(f) (f)->garbaged
1017 
1018 /* True means do not allow splitting this frame's window.  */
1019 #define FRAME_NO_SPLIT_P(f) (f)->no_split
1020 
1021 /* Not really implemented.  */
1022 #define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
1023 
1024 /* True if all windows except selected window and mini window
1025    are frozen on frame F.  */
1026 #define FRAME_WINDOWS_FROZEN(f) (f)->frozen_window_starts
1027 
1028 /* True if at least one window changed on frame F since the last time
1029    window change functions were run on F.  */
1030 #define FRAME_WINDOW_CHANGE(f) (f)->window_change
1031 
1032 /* True if running window state change functions has been explicitly
1033    requested for this frame since last redisplay.  */
1034 #define FRAME_WINDOW_STATE_CHANGE(f) (f)->window_state_change
1035 
1036 /* The minibuffer window of frame F, if it has one; otherwise nil.  */
1037 #define FRAME_MINIBUF_WINDOW(f) f->minibuffer_window
1038 
1039 /* The root window of the window tree of frame F.  */
1040 #define FRAME_ROOT_WINDOW(f) f->root_window
1041 
1042 /* The currently selected window of frame F.  */
1043 #define FRAME_SELECTED_WINDOW(f) f->selected_window
1044 /* The old selected window of frame F.  */
1045 #define FRAME_OLD_SELECTED_WINDOW(f) f->old_selected_window
1046 
1047 #define FRAME_INSERT_COST(f) (f)->insert_line_cost
1048 #define FRAME_DELETE_COST(f) (f)->delete_line_cost
1049 #define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
1050 #define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
1051 #define FRAME_FOCUS_FRAME(f) f->focus_frame
1052 
1053 #ifdef HAVE_WINDOW_SYSTEM
1054 /* This frame slot says whether scroll bars are currently enabled for frame F,
1055    and which side they are on.  */
1056 #define FRAME_VERTICAL_SCROLL_BAR_TYPE(f) ((f)->vertical_scroll_bar_type)
1057 #define FRAME_HAS_VERTICAL_SCROLL_BARS(f) \
1058   ((f)->vertical_scroll_bar_type != vertical_scroll_bar_none)
1059 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT(f) \
1060   ((f)->vertical_scroll_bar_type == vertical_scroll_bar_left)
1061 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT(f) \
1062   ((f)->vertical_scroll_bar_type == vertical_scroll_bar_right)
1063 #else /* not HAVE_WINDOW_SYSTEM */
1064 /* If there is no window system, there are no scroll bars.  */
1065 #define FRAME_VERTICAL_SCROLL_BAR_TYPE(f) \
1066   ((void) (f), vertical_scroll_bar_none)
1067 #define FRAME_HAS_VERTICAL_SCROLL_BARS(f) ((void) (f), 0)
1068 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT(f) ((void) (f), 0)
1069 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT(f) ((void) (f), 0)
1070 #endif /* HAVE_WINDOW_SYSTEM */
1071 
1072 #if defined (HAVE_WINDOW_SYSTEM)
1073 #define FRAME_UNDECORATED(f) ((f)->undecorated)
1074 #ifdef HAVE_NTGUI
1075 #define FRAME_OVERRIDE_REDIRECT(f) ((void) (f), 0)
1076 #else
1077 #define FRAME_OVERRIDE_REDIRECT(f) ((f)->override_redirect)
1078 #endif
1079 #define FRAME_PARENT_FRAME(f)			\
1080   (NILP ((f)->parent_frame)			\
1081    ? NULL					\
1082    : XFRAME ((f)->parent_frame))
1083 #define FRAME_SKIP_TASKBAR(f) ((f)->skip_taskbar)
1084 #define FRAME_NO_FOCUS_ON_MAP(f) ((f)->no_focus_on_map)
1085 #define FRAME_NO_ACCEPT_FOCUS(f) ((f)->no_accept_focus)
1086 #define FRAME_NO_SPECIAL_GLYPHS(f) ((f)->no_special_glyphs)
1087 #define FRAME_Z_GROUP(f) ((f)->z_group)
1088 #define FRAME_Z_GROUP_NONE(f) ((f)->z_group == z_group_none)
1089 #define FRAME_Z_GROUP_ABOVE(f) ((f)->z_group == z_group_above)
1090 #define FRAME_Z_GROUP_ABOVE_SUSPENDED(f)	\
1091   ((f)->z_group == z_group_above_suspended)
1092 #define FRAME_Z_GROUP_BELOW(f) ((f)->z_group == z_group_below)
1093 #define FRAME_TOOLTIP_P(f) ((f)->tooltip)
1094 #ifdef NS_IMPL_COCOA
1095 #define FRAME_NS_APPEARANCE(f) ((f)->ns_appearance)
1096 #define FRAME_NS_TRANSPARENT_TITLEBAR(f) ((f)->ns_transparent_titlebar)
1097 #endif
1098 #else /* not HAVE_WINDOW_SYSTEM */
1099 #define FRAME_UNDECORATED(f) ((void) (f), 0)
1100 #define FRAME_OVERRIDE_REDIRECT(f) ((void) (f), 0)
1101 #define FRAME_PARENT_FRAME(f) ((void) (f), NULL)
1102 #define FRAME_SKIP_TASKBAR(f) ((void) (f), 0)
1103 #define FRAME_NO_FOCUS_ON_MAP(f) ((void) (f), 0)
1104 #define FRAME_NO_ACCEPT_FOCUS(f) ((void) (f), 0)
1105 #define FRAME_NO_SPECIAL_GLYPHS(f) ((void) (f), 0)
1106 #define FRAME_Z_GROUP(f) ((void) (f), z_group_none)
1107 #define FRAME_Z_GROUP_NONE(f) ((void) (f), true)
1108 #define FRAME_Z_GROUP_ABOVE(f) ((void) (f), false)
1109 #define FRAME_Z_GROUP_BELOW(f) ((void) (f), false)
1110 #define FRAME_TOOLTIP_P(f) ((void) f, false)
1111 #endif /* HAVE_WINDOW_SYSTEM */
1112 
1113 /* Whether horizontal scroll bars are currently enabled for frame F.  */
1114 #if USE_HORIZONTAL_SCROLL_BARS
1115 #define FRAME_HAS_HORIZONTAL_SCROLL_BARS(f) \
1116   ((f)->horizontal_scroll_bars)
1117 #else
1118 #define FRAME_HAS_HORIZONTAL_SCROLL_BARS(f) ((void) (f), 0)
1119 #endif
1120 
1121 /* Width that a scroll bar in frame F should have, if there is one.
1122    Measured in pixels.
1123    If scroll bars are turned off, this is still nonzero.  */
1124 #define FRAME_CONFIG_SCROLL_BAR_WIDTH(f) ((f)->config_scroll_bar_width)
1125 
1126 /* Height that a scroll bar in frame F should have, if there is one.
1127    Measured in pixels.
1128    If scroll bars are turned off, this is still nonzero.  */
1129 #define FRAME_CONFIG_SCROLL_BAR_HEIGHT(f) ((f)->config_scroll_bar_height)
1130 
1131 /* Width that a scroll bar in frame F should have, if there is one.
1132    Measured in columns (characters).
1133    If scroll bars are turned off, this is still nonzero.  */
1134 #define FRAME_CONFIG_SCROLL_BAR_COLS(f) ((f)->config_scroll_bar_cols)
1135 
1136 /* Height that a scroll bar in frame F should have, if there is one.
1137    Measured in lines (characters).
1138    If scroll bars are turned off, this is still nonzero.  */
1139 #define FRAME_CONFIG_SCROLL_BAR_LINES(f) ((f)->config_scroll_bar_lines)
1140 
1141 /* Width of a left scroll bar in frame F, measured in pixels */
1142 #define FRAME_LEFT_SCROLL_BAR_AREA_WIDTH(f)				\
1143   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)				\
1144    ? FRAME_CONFIG_SCROLL_BAR_WIDTH (f)					\
1145    : 0)
1146 
1147 /* Width of a right scroll bar area in frame F, measured in pixels */
1148 #define FRAME_RIGHT_SCROLL_BAR_AREA_WIDTH(f)				\
1149   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)				\
1150    ? FRAME_CONFIG_SCROLL_BAR_WIDTH (f)					\
1151    : 0)
1152 
1153 /* Width of a left scroll bar in frame F, measured in columns
1154    (characters), but only if scroll bars are on the left.  If scroll
1155    bars are on the right in this frame, or there are no scroll bars,
1156    value is 0.  */
1157 #define FRAME_LEFT_SCROLL_BAR_COLS(f)			\
1158   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)		\
1159    ? FRAME_CONFIG_SCROLL_BAR_COLS (f)			\
1160    : 0)
1161 
1162 /* Width of a right scroll bar in frame F, measured in columns
1163    (characters), but only if scroll bars are on the right.  If scroll
1164    bars are on the left in this frame, or there are no scroll bars,
1165    value is 0.  */
1166 #define FRAME_RIGHT_SCROLL_BAR_COLS(f)			\
1167   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)		\
1168    ? FRAME_CONFIG_SCROLL_BAR_COLS (f)			\
1169    : 0)
1170 
1171 /* Width of a vertical scroll bar area in frame F, measured in
1172    pixels.  */
1173 #define FRAME_SCROLL_BAR_AREA_WIDTH(f)		\
1174   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)		\
1175    ? FRAME_CONFIG_SCROLL_BAR_WIDTH (f)		\
1176    : 0)
1177 
1178 /* Height of horizontal scroll bar area in frame F, measured in
1179    pixels.  */
1180 #define FRAME_SCROLL_BAR_AREA_HEIGHT(f) \
1181   (FRAME_HAS_HORIZONTAL_SCROLL_BARS (f) \
1182    ? FRAME_CONFIG_SCROLL_BAR_HEIGHT (f) \
1183    : 0)
1184 
1185 /* Width of vertical scroll bar in frame F, measured in columns.  */
1186 #define FRAME_SCROLL_BAR_COLS(f)      \
1187   (FRAME_HAS_VERTICAL_SCROLL_BARS (f) \
1188    ? FRAME_CONFIG_SCROLL_BAR_COLS (f) \
1189    : 0)
1190 
1191 /* Height of horizontal scroll bar in frame F, measured in lines.  */
1192 #define FRAME_SCROLL_BAR_LINES(f)	\
1193   (FRAME_HAS_HORIZONTAL_SCROLL_BARS (f) \
1194    ? FRAME_CONFIG_SCROLL_BAR_LINES (f)	\
1195    : 0)
1196 
1197 /* Maximum + 1 legitimate value for FRAME_CURSOR_X.  */
1198 #define FRAME_CURSOR_X_LIMIT(f) \
1199   (FRAME_COLS (f) + FRAME_LEFT_SCROLL_BAR_COLS (f))
1200 
1201 /* Nonzero if frame F has scroll bars.  */
1202 #define FRAME_SCROLL_BARS(f) (f->scroll_bars)
1203 #define FRAME_CONDEMNED_SCROLL_BARS(f) (f->condemned_scroll_bars)
1204 
1205 #define FRAME_MENU_BAR_ITEMS(f) (f->menu_bar_items)
1206 #define FRAME_COST_BAUD_RATE(f) ((f)->cost_calculation_baud_rate)
1207 
1208 #define FRAME_DESIRED_CURSOR(f) ((f)->desired_cursor)
1209 #define FRAME_BLINK_OFF_CURSOR(f) ((f)->blink_off_cursor)
1210 #define FRAME_CURSOR_WIDTH(f) ((f)->cursor_width)
1211 #define FRAME_BLINK_OFF_CURSOR_WIDTH(f) ((f)->blink_off_cursor_width)
1212 
1213 #define FRAME_FOREGROUND_PIXEL(f) ((f)->foreground_pixel)
1214 #define FRAME_BACKGROUND_PIXEL(f) ((f)->background_pixel)
1215 
1216 /* Return a pointer to the face cache of frame F.  */
1217 #define FRAME_FACE_CACHE(F)	(F)->face_cache
1218 
1219 /* Return the size of message_buf of the frame F.  We multiply the
1220    width of the frame by 4 because multi-byte form may require at most
1221    4-byte for a character.  */
1222 
1223 #define FRAME_MESSAGE_BUF_SIZE(f) (((int) FRAME_COLS (f)) * 4)
1224 
1225 #define CHECK_FRAME(x) \
1226   CHECK_TYPE (FRAMEP (x), Qframep, x)
1227 
1228 #define CHECK_LIVE_FRAME(x) \
1229   CHECK_TYPE (FRAMEP (x) && FRAME_LIVE_P (XFRAME (x)), Qframe_live_p, x)
1230 
1231 /* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
1232    `for' loop which iterates over the elements of Vframe_list.  The
1233    loop will set FRAME_VAR, a Lisp_Object, to each frame in
1234    Vframe_list in succession and execute the statement.  LIST_VAR
1235    should be a Lisp_Object too; it is used to iterate through the
1236    Vframe_list.  Note that this macro walks over child frames and
1237    the tooltip frame as well.
1238 
1239    This macro is a holdover from a time when multiple frames weren't always
1240    supported.  An alternate definition of the macro would expand to
1241    something which executes the statement once.  */
1242 #define FOR_EACH_FRAME(list_var, frame_var)	 \
1243   for ((list_var) = Vframe_list;		 \
1244        (CONSP (list_var)			 \
1245 	&& (frame_var = XCAR (list_var), true)); \
1246        list_var = XCDR (list_var))
1247 
1248 /* Reflect mouse movement when a complete frame update is performed.  */
1249 #define FRAME_MOUSE_UPDATE(frame)				\
1250   do {								\
1251     Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (frame);		\
1252     if (frame == hlinfo->mouse_face_mouse_frame)		\
1253       {								\
1254 	block_input ();						\
1255 	note_mouse_highlight (hlinfo->mouse_face_mouse_frame,	\
1256 			      hlinfo->mouse_face_mouse_x,	\
1257 			      hlinfo->mouse_face_mouse_y);	\
1258 	unblock_input ();					\
1259       }								\
1260   } while (false)
1261 
1262 /* Handy macro to construct an argument to Fmodify_frame_parameters.  */
1263 #define AUTO_FRAME_ARG(name, parameter, value)		\
1264   AUTO_LIST1 (name, AUTO_CONS_EXPR (parameter, value))
1265 
1266 /* False means there are no visible garbaged frames.  */
1267 extern bool frame_garbaged;
1268 
1269 /* Set visibility of frame F.
1270    We call redisplay_other_windows to make sure the frame gets redisplayed
1271    if some changes were applied to it while it wasn't visible (and hence
1272    wasn't redisplayed).  */
1273 INLINE void
SET_FRAME_VISIBLE(struct frame * f,int v)1274 SET_FRAME_VISIBLE (struct frame *f, int v)
1275 {
1276   eassert (0 <= v && v <= 2);
1277   if (v)
1278     {
1279       if (v == 1 && f->visible != 1)
1280 	redisplay_other_windows ();
1281       if (FRAME_GARBAGED_P (f))
1282 	frame_garbaged = true;
1283     }
1284   f->visible = v;
1285 }
1286 
1287 /* Set iconified status of frame F.  */
1288 #define SET_FRAME_ICONIFIED(f, i)				\
1289   (f)->iconified = (eassert (0 <= (i) && (i) <= 1), (i))
1290 
1291 extern Lisp_Object selected_frame;
1292 extern Lisp_Object old_selected_frame;
1293 
1294 extern int frame_default_tab_bar_height;
1295 
1296 #ifndef HAVE_EXT_TOOL_BAR
1297 extern int frame_default_tool_bar_height;
1298 #endif
1299 
1300 #ifdef HAVE_WINDOW_SYSTEM
1301 # define WINDOW_SYSTEM_RETURN
1302 #else
1303 # define WINDOW_SYSTEM_RETURN _Noreturn ATTRIBUTE_COLD
1304 #endif
1305 
1306 extern WINDOW_SYSTEM_RETURN struct frame *
1307   decode_window_system_frame (Lisp_Object);
1308 extern struct frame *decode_live_frame (Lisp_Object);
1309 extern struct frame *decode_any_frame (Lisp_Object);
1310 extern struct frame *make_initial_frame (void);
1311 extern struct frame *make_frame (bool);
1312 #ifdef HAVE_WINDOW_SYSTEM
1313 extern struct frame *make_minibuffer_frame (void);
1314 extern struct frame *make_frame_without_minibuffer (Lisp_Object,
1315                                                     struct kboard *,
1316                                                     Lisp_Object);
1317 extern bool display_available (void);
1318 #endif
1319 
1320 INLINE bool
window_system_available(struct frame * f)1321 window_system_available (struct frame *f)
1322 {
1323 #ifdef HAVE_WINDOW_SYSTEM
1324   return f ? FRAME_WINDOW_P (f) || FRAME_MSDOS_P (f) : display_available ();
1325 #else
1326   return false;
1327 #endif
1328 }
1329 
1330 extern WINDOW_SYSTEM_RETURN void check_window_system (struct frame *);
1331 extern void frame_make_pointer_invisible (struct frame *);
1332 extern void frame_make_pointer_visible (struct frame *);
1333 extern Lisp_Object delete_frame (Lisp_Object, Lisp_Object);
1334 extern bool frame_inhibit_resize (struct frame *, bool, Lisp_Object);
1335 extern void adjust_frame_size (struct frame *, int, int, int, bool,
1336 			       Lisp_Object);
1337 extern Lisp_Object mouse_position (bool);
1338 extern int frame_windows_min_size (Lisp_Object, Lisp_Object, Lisp_Object,
1339 				   Lisp_Object);
1340 extern void frame_size_history_plain (struct frame *, Lisp_Object);
1341 extern void frame_size_history_extra (struct frame *, Lisp_Object,
1342 				      int, int, int, int, int, int);
1343 extern Lisp_Object Vframe_list;
1344 
1345 /* Value is a pointer to the selected frame.  If the selected frame
1346    isn't live, abort.  */
1347 
1348 #define SELECTED_FRAME()				\
1349      ((FRAMEP (selected_frame)				\
1350        && FRAME_LIVE_P (XFRAME (selected_frame)))	\
1351       ? XFRAME (selected_frame)				\
1352       : (emacs_abort (), (struct frame *) 0))
1353 
1354 
1355 /***********************************************************************
1356 			Display-related Macros
1357  ***********************************************************************/
1358 
1359 /* Canonical y-unit on frame F.
1360    This value currently equals the line height of the frame (which is
1361    the height of the default font of F).  */
1362 #define FRAME_LINE_HEIGHT(F) ((F)->line_height)
1363 
1364 /* Canonical x-unit on frame F.
1365    This value currently equals the average width of the default font of F.  */
1366 #define FRAME_COLUMN_WIDTH(F) ((F)->column_width)
1367 
1368 /* Get a frame's window system dimension.  If no window system, this is 0.  */
1369 
1370 INLINE int
frame_dimension(int x)1371 frame_dimension (int x)
1372 {
1373 #ifdef HAVE_WINDOW_SYSTEM
1374   return x;
1375 #else
1376   return 0;
1377 #endif
1378 }
1379 
1380 /* Total width of fringes reserved for drawing truncation bitmaps,
1381    continuation bitmaps and alike.  The width is in canonical char
1382    units of the frame.  This must currently be the case because window
1383    sizes aren't pixel values.  If it weren't the case, we wouldn't be
1384    able to split windows horizontally nicely.  */
1385 INLINE int
FRAME_FRINGE_COLS(struct frame * f)1386 FRAME_FRINGE_COLS (struct frame *f)
1387 {
1388   return frame_dimension (f->fringe_cols);
1389 }
1390 
1391 /* Pixel-width of the left and right fringe.  */
1392 
1393 INLINE int
FRAME_LEFT_FRINGE_WIDTH(struct frame * f)1394 FRAME_LEFT_FRINGE_WIDTH (struct frame *f)
1395 {
1396   return frame_dimension (f->left_fringe_width);
1397 }
1398 INLINE int
FRAME_RIGHT_FRINGE_WIDTH(struct frame * f)1399 FRAME_RIGHT_FRINGE_WIDTH (struct frame *f)
1400 {
1401   return frame_dimension (f->right_fringe_width);
1402 }
1403 
1404 /* Total width of fringes in pixels.  */
1405 
1406 INLINE int
FRAME_TOTAL_FRINGE_WIDTH(struct frame * f)1407 FRAME_TOTAL_FRINGE_WIDTH (struct frame *f)
1408 {
1409   return FRAME_LEFT_FRINGE_WIDTH (f) + FRAME_RIGHT_FRINGE_WIDTH (f);
1410 }
1411 
1412 INLINE int
FRAME_CHILD_FRAME_BORDER_WIDTH(struct frame * f)1413 FRAME_CHILD_FRAME_BORDER_WIDTH (struct frame *f)
1414 {
1415   return frame_dimension (f->child_frame_border_width);
1416 }
1417 
1418 /* Pixel-width of internal border.  Uses child_frame_border_width for
1419    child frames if possible, and falls back on internal_border_width
1420    otherwise.  */
1421 INLINE int
FRAME_INTERNAL_BORDER_WIDTH(struct frame * f)1422 FRAME_INTERNAL_BORDER_WIDTH (struct frame *f)
1423 {
1424 #ifdef HAVE_WINDOW_SYSTEM
1425   return (FRAME_PARENT_FRAME(f)
1426 	  ? (FRAME_CHILD_FRAME_BORDER_WIDTH(f) >= 0
1427 	     ? FRAME_CHILD_FRAME_BORDER_WIDTH(f)
1428 	     : frame_dimension (f->internal_border_width))
1429 	  : frame_dimension (f->internal_border_width));
1430 #else
1431   return frame_dimension (f->internal_border_width);
1432 #endif
1433 }
1434 
1435 /* Pixel-size of window divider lines.  */
1436 INLINE int
FRAME_RIGHT_DIVIDER_WIDTH(struct frame * f)1437 FRAME_RIGHT_DIVIDER_WIDTH (struct frame *f)
1438 {
1439   return frame_dimension (f->right_divider_width);
1440 }
1441 
1442 INLINE int
FRAME_BOTTOM_DIVIDER_WIDTH(struct frame * f)1443 FRAME_BOTTOM_DIVIDER_WIDTH (struct frame *f)
1444 {
1445   return frame_dimension (f->bottom_divider_width);
1446 }
1447 
1448 /* Return a non-null pointer to the cached face with ID on frame F.  */
1449 
1450 INLINE struct face *
FACE_FROM_ID(struct frame * f,int id)1451 FACE_FROM_ID (struct frame *f, int id)
1452 {
1453   eassert (0 <= id && id < FRAME_FACE_CACHE (f)->used);
1454   return FRAME_FACE_CACHE (f)->faces_by_id[id];
1455 }
1456 
1457 /* Return a pointer to the face with ID on frame F, or null if such a
1458    face doesn't exist.  */
1459 
1460 INLINE struct face *
FACE_FROM_ID_OR_NULL(struct frame * f,int id)1461 FACE_FROM_ID_OR_NULL (struct frame *f, int id)
1462 {
1463   int used = FRAME_FACE_CACHE (f)->used;
1464   eassume (0 <= used);
1465   return 0 <= id && id < used ? FRAME_FACE_CACHE (f)->faces_by_id[id] : NULL;
1466 }
1467 
1468 #ifdef HAVE_WINDOW_SYSTEM
1469 
1470 /* A non-null pointer to the image with id ID on frame F.  */
1471 
1472 INLINE struct image *
IMAGE_FROM_ID(struct frame * f,int id)1473 IMAGE_FROM_ID (struct frame *f, int id)
1474 {
1475   eassert (0 <= id && id < FRAME_IMAGE_CACHE (f)->used);
1476   return FRAME_IMAGE_CACHE (f)->images[id];
1477 }
1478 
1479 /* Value is a pointer to the image with id ID on frame F, or null if
1480    no image with that id exists.  */
1481 
1482 INLINE struct image *
IMAGE_OPT_FROM_ID(struct frame * f,int id)1483 IMAGE_OPT_FROM_ID (struct frame *f, int id)
1484 {
1485   int used = FRAME_IMAGE_CACHE (f)->used;
1486   eassume (0 <= used);
1487   return 0 <= id && id < used ? FRAME_IMAGE_CACHE (f)->images[id] : NULL;
1488 }
1489 #endif
1490 
1491 /***********************************************************************
1492 	    Conversion between canonical units and pixels
1493  ***********************************************************************/
1494 
1495 /* Canonical x-values are fractions of FRAME_COLUMN_WIDTH, canonical
1496    y-unit are fractions of FRAME_LINE_HEIGHT of a frame.  Both are
1497    represented as Lisp numbers, i.e. integers or floats.  */
1498 
1499 /* Convert canonical value X to pixels.  F is the frame whose
1500    canonical char width is to be used.  X must be a Lisp integer or
1501    float.  Value is a C integer.  */
1502 #define FRAME_PIXEL_X_FROM_CANON_X(F, X)		\
1503   ((int) (XFLOATINT (X) * FRAME_COLUMN_WIDTH (F)))
1504 
1505 /* Convert canonical value Y to pixels.  F is the frame whose
1506    canonical character height is to be used.  X must be a Lisp integer
1507    or float.  Value is a C integer.  */
1508 #define FRAME_PIXEL_Y_FROM_CANON_Y(F, Y)		\
1509   ((int) (XFLOATINT (Y) * FRAME_LINE_HEIGHT (F)))
1510 
1511 /* Convert pixel-value X to canonical units.  F is the frame whose
1512    canonical character width is to be used.  X is a C integer.  Result
1513    is a Lisp float if X is not a multiple of the canon width,
1514    otherwise it's a Lisp integer.  */
1515 #define FRAME_CANON_X_FROM_PIXEL_X(F, X)			\
1516   ((X) % FRAME_COLUMN_WIDTH (F) != 0				\
1517    ? make_float ((double) (X) / FRAME_COLUMN_WIDTH (F))		\
1518    : make_fixnum ((X) / FRAME_COLUMN_WIDTH (F)))
1519 
1520 /* Convert pixel-value Y to canonical units.  F is the frame whose
1521    canonical character height is to be used.  Y is a C integer.
1522    Result is a Lisp float if Y is not a multiple of the canon width,
1523    otherwise it's a Lisp integer.  */
1524 #define FRAME_CANON_Y_FROM_PIXEL_Y(F, Y)			\
1525   ((Y) % FRAME_LINE_HEIGHT (F)					\
1526    ? make_float ((double) (Y) / FRAME_LINE_HEIGHT (F))		\
1527    : make_fixnum ((Y) / FRAME_LINE_HEIGHT (F)))
1528 
1529 
1530 
1531 /* Manipulating pixel sizes and character sizes.
1532    Knowledge of which factors affect the overall size of the window should
1533    be hidden in these macros, if that's possible.
1534 
1535    Return the upper/left pixel position of the character cell on frame F
1536    at ROW/COL.  */
1537 #define FRAME_LINE_TO_PIXEL_Y(f, row)					\
1538   (((row) < FRAME_TOP_MARGIN (f) ? 0 : FRAME_INTERNAL_BORDER_WIDTH (f))	\
1539    + (row) * FRAME_LINE_HEIGHT (f))
1540 
1541 #define FRAME_COL_TO_PIXEL_X(f, col)		\
1542   (FRAME_INTERNAL_BORDER_WIDTH (f)		\
1543    + (col) * FRAME_COLUMN_WIDTH (f))
1544 
1545 /* Return the pixel width/height of frame F if it has
1546    COLS columns/LINES rows.  */
1547 #define FRAME_TEXT_COLS_TO_PIXEL_WIDTH(f, cols) \
1548   ((cols) * FRAME_COLUMN_WIDTH (f)		\
1549    + FRAME_SCROLL_BAR_AREA_WIDTH (f)		\
1550    + FRAME_TOTAL_FRINGE_WIDTH (f)		\
1551    + 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1552 
1553 #define FRAME_TEXT_LINES_TO_PIXEL_HEIGHT(f, lines) \
1554   ((lines) * FRAME_LINE_HEIGHT (f)		   \
1555    + FRAME_TOP_MARGIN_HEIGHT (f)		   \
1556    + FRAME_SCROLL_BAR_AREA_HEIGHT (f)		   \
1557    + 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1558 
1559 /* Return the row/column (zero-based) of the character cell containing
1560    the pixel on FRAME at Y/X.  */
1561 #define FRAME_PIXEL_Y_TO_LINE(f, y)					\
1562   (((y) < FRAME_TOP_MARGIN_HEIGHT (f)					\
1563     ? (y)								\
1564     : ((y) < (FRAME_TOP_MARGIN_HEIGHT (f)				\
1565 	      + FRAME_INTERNAL_BORDER_WIDTH (f))			\
1566        ? (y) - (FRAME_TOP_MARGIN_HEIGHT (f)				\
1567 		+ FRAME_INTERNAL_BORDER_WIDTH (f)			\
1568 		/* Arrange for the division to round down.  */		\
1569 		+ FRAME_LINE_HEIGHT (f) - 1)				\
1570        : (y) - FRAME_INTERNAL_BORDER_WIDTH (f)))			\
1571    / FRAME_LINE_HEIGHT (f))
1572 
1573 #define FRAME_PIXEL_X_TO_COL(f, x)		\
1574   (((x) - FRAME_INTERNAL_BORDER_WIDTH (f))	\
1575    / FRAME_COLUMN_WIDTH (f))
1576 
1577 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
1578    frame F (so we round down)?  */
1579 #define FRAME_PIXEL_WIDTH_TO_TEXT_COLS(f, width)			\
1580   (((width)								\
1581     - FRAME_TOTAL_FRINGE_WIDTH (f)					\
1582     - FRAME_SCROLL_BAR_AREA_WIDTH (f)					\
1583     - 2 * FRAME_INTERNAL_BORDER_WIDTH (f))				\
1584    / FRAME_COLUMN_WIDTH (f))
1585 
1586 #define FRAME_PIXEL_HEIGHT_TO_TEXT_LINES(f, height)			\
1587   (((height)								\
1588     - FRAME_TOP_MARGIN_HEIGHT (f)					\
1589     - FRAME_SCROLL_BAR_AREA_HEIGHT (f)					\
1590     - 2 * FRAME_INTERNAL_BORDER_WIDTH (f))				\
1591    / FRAME_LINE_HEIGHT (f))
1592 
1593 /* Return the pixel width/height of frame F with a text size of
1594    width/height.  */
1595 #define FRAME_TEXT_TO_PIXEL_WIDTH(f, width)	  \
1596   ((width)					  \
1597    + FRAME_SCROLL_BAR_AREA_WIDTH (f)		  \
1598    + FRAME_TOTAL_FRINGE_WIDTH (f)		  \
1599    + 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1600 
1601 #define FRAME_TEXT_TO_PIXEL_HEIGHT(f, height)	     \
1602   ((height)					     \
1603    + FRAME_TOP_MARGIN_HEIGHT (f)		     \
1604    + FRAME_SCROLL_BAR_AREA_HEIGHT (f)		     \
1605    + 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1606 
1607 /* Return the text width/height of frame F with a pixel size of
1608    width/height.  */
1609 #define FRAME_PIXEL_TO_TEXT_WIDTH(f, width)	  \
1610   ((width)					  \
1611    - FRAME_SCROLL_BAR_AREA_WIDTH (f)		  \
1612    - FRAME_TOTAL_FRINGE_WIDTH (f)		  \
1613    - 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1614 
1615 #define FRAME_PIXEL_TO_TEXT_HEIGHT(f, height)		\
1616   ((height)						\
1617    - FRAME_TOP_MARGIN_HEIGHT (f)			\
1618    - FRAME_SCROLL_BAR_AREA_HEIGHT (f)			\
1619    - 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1620 
1621 #define FRAME_INNER_WIDTH(f)			\
1622   (FRAME_PIXEL_WIDTH (f)			\
1623    - 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1624 
1625 #define FRAME_INNER_HEIGHT(f)			\
1626   (FRAME_PIXEL_HEIGHT (f)			\
1627    - FRAME_TOP_MARGIN_HEIGHT (f)		\
1628    - 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1629 
1630 /* Value is the smallest width of any character in any font on frame F.  */
1631 #define FRAME_SMALLEST_CHAR_WIDTH(f)		\
1632   FRAME_DISPLAY_INFO (f)->smallest_char_width
1633 
1634 /* Value is the smallest height of any font on frame F.  */
1635 #define FRAME_SMALLEST_FONT_HEIGHT(f)		\
1636   FRAME_DISPLAY_INFO (f)->smallest_font_height
1637 
1638 /***********************************************************************
1639 				Frame Parameters
1640  ***********************************************************************/
1641 
1642 #ifdef HAVE_WINDOW_SYSTEM
1643 
1644 /* The class of this X application.  */
1645 #define EMACS_CLASS "Emacs"
1646 
1647 extern void gui_set_frame_parameters (struct frame *, Lisp_Object);
1648 extern void gui_set_fullscreen (struct frame *, Lisp_Object, Lisp_Object);
1649 extern void gui_set_line_spacing (struct frame *, Lisp_Object, Lisp_Object);
1650 extern void gui_set_screen_gamma (struct frame *, Lisp_Object, Lisp_Object);
1651 extern void gui_set_font (struct frame *, Lisp_Object, Lisp_Object);
1652 extern void gui_set_font_backend (struct frame *, Lisp_Object, Lisp_Object);
1653 extern void gui_set_left_fringe (struct frame *, Lisp_Object, Lisp_Object);
1654 extern void gui_set_right_fringe (struct frame *, Lisp_Object, Lisp_Object);
1655 extern void gui_set_border_width (struct frame *, Lisp_Object, Lisp_Object);
1656 extern void gui_set_right_divider_width (struct frame *, Lisp_Object,
1657                                          Lisp_Object);
1658 extern void gui_set_bottom_divider_width (struct frame *, Lisp_Object,
1659                                           Lisp_Object);
1660 extern void gui_set_visibility (struct frame *, Lisp_Object, Lisp_Object);
1661 extern void gui_set_autoraise (struct frame *, Lisp_Object, Lisp_Object);
1662 extern void gui_set_autolower (struct frame *, Lisp_Object, Lisp_Object);
1663 extern void gui_set_unsplittable (struct frame *, Lisp_Object, Lisp_Object);
1664 extern void gui_set_vertical_scroll_bars (struct frame *, Lisp_Object, Lisp_Object);
1665 extern void gui_set_horizontal_scroll_bars (struct frame *, Lisp_Object, Lisp_Object);
1666 extern void gui_set_scroll_bar_width (struct frame *, Lisp_Object, Lisp_Object);
1667 extern void gui_set_scroll_bar_height (struct frame *, Lisp_Object, Lisp_Object);
1668 
1669 extern long gui_figure_window_size (struct frame *, Lisp_Object, bool, bool);
1670 
1671 extern void gui_set_alpha (struct frame *, Lisp_Object, Lisp_Object);
1672 extern void gui_set_no_special_glyphs (struct frame *, Lisp_Object, Lisp_Object);
1673 
1674 extern void validate_x_resource_name (void);
1675 
1676 extern Lisp_Object gui_display_get_resource (Display_Info *,
1677                                              Lisp_Object attribute,
1678                                              Lisp_Object class,
1679                                              Lisp_Object component,
1680                                              Lisp_Object subclass);
1681 
1682 extern void set_frame_menubar (struct frame *f, bool deep_p);
1683 extern void frame_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y);
1684 extern void free_frame_menubar (struct frame *);
1685 extern bool frame_ancestor_p (struct frame *af, struct frame *df);
1686 extern enum internal_border_part frame_internal_border_part (struct frame *f, int x, int y);
1687 
1688 #if defined HAVE_X_WINDOWS
1689 extern void x_wm_set_icon_position (struct frame *, int, int);
1690 #if !defined USE_X_TOOLKIT
1691 extern const char *x_get_resource_string (const char *, const char *);
1692 #endif
1693 extern void x_sync (struct frame *);
1694 #endif /* HAVE_X_WINDOWS */
1695 
1696 #if !defined (HAVE_NS) && !defined (HAVE_PGTK)
1697 
1698 /* Set F's bitmap icon, if specified among F's parameters.  */
1699 
1700 INLINE void
gui_set_bitmap_icon(struct frame * f)1701 gui_set_bitmap_icon (struct frame *f)
1702 {
1703   Lisp_Object obj = assq_no_quit (Qicon_type, f->param_alist);
1704 
1705   if (CONSP (obj) && !NILP (XCDR (obj))
1706       && FRAME_TERMINAL (f)->set_bitmap_icon_hook)
1707     FRAME_TERMINAL (f)->set_bitmap_icon_hook (f, XCDR (obj));
1708 }
1709 
1710 #endif /* !HAVE_NS */
1711 #endif /* HAVE_WINDOW_SYSTEM */
1712 
1713 INLINE void
flush_frame(struct frame * f)1714 flush_frame (struct frame *f)
1715 {
1716   struct redisplay_interface *rif = FRAME_RIF (f);
1717 
1718   if (rif && rif->flush_display)
1719     rif->flush_display (f);
1720 }
1721 
1722 /***********************************************************************
1723 			Multimonitor data
1724  ***********************************************************************/
1725 
1726 #ifdef HAVE_WINDOW_SYSTEM
1727 
1728 struct MonitorInfo {
1729   Emacs_Rectangle geom, work;
1730   int mm_width, mm_height;
1731   char *name;
1732 #ifdef HAVE_PGTK
1733   double scale_factor;
1734 #endif
1735 };
1736 
1737 extern void free_monitors (struct MonitorInfo *monitors, int n_monitors);
1738 extern Lisp_Object make_monitor_attribute_list (struct MonitorInfo *monitors,
1739                                                 int n_monitors,
1740                                                 int primary_monitor,
1741                                                 Lisp_Object monitor_frames,
1742                                                 const char *source);
1743 
1744 #endif /* HAVE_WINDOW_SYSTEM */
1745 
1746 
1747 INLINE_HEADER_END
1748 
1749 /* Suppress -Wsuggest-attribute=const if there are no scroll bars.
1750    This is for functions like x_set_horizontal_scroll_bars that have
1751    no effect in this case.  */
1752 #if ! USE_HORIZONTAL_SCROLL_BARS && GNUC_PREREQ (4, 6, 0)
1753 # pragma GCC diagnostic ignored "-Wsuggest-attribute=const"
1754 #endif
1755 
1756 #endif /* not EMACS_FRAME_H */
1757