Commit | Line | Data |
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1a578e9b | 1 | /* Display module for Mac OS. |
e0f712ba | 2 | Copyright (C) 2000, 2001 Free Software Foundation, Inc. |
1a578e9b AC |
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 2, or (at your option) | |
9 | 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; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
e0f712ba | 21 | /* Contributed by Andrew Choi (akochoi@mac.com). */ |
1a578e9b AC |
22 | |
23 | #include "macgui.h" | |
24 | #include "frame.h" | |
25 | ||
365fa1b3 AC |
26 | /* Include Carbon.h to define Cursor and Rect. */ |
27 | #ifdef HAVE_CARBON | |
28 | #undef mktime | |
29 | #undef DEBUG | |
30 | #undef Z | |
31 | #undef free | |
32 | #undef malloc | |
33 | #undef realloc | |
34 | /* Macros max and min defined in lisp.h conflict with those in | |
35 | precompiled header Carbon.h. */ | |
36 | #undef max | |
37 | #undef min | |
38 | #undef init_process | |
39 | #include <Carbon/Carbon.h> | |
40 | #undef Z | |
41 | #define Z (current_buffer->text->z) | |
42 | #undef free | |
43 | #define free unexec_free | |
44 | #undef malloc | |
45 | #define malloc unexec_malloc | |
46 | #undef realloc | |
47 | #define realloc unexec_realloc | |
48 | #undef min | |
49 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
50 | #undef max | |
51 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
52 | #undef init_process | |
53 | #define init_process emacs_init_process | |
54 | #endif /* MAC_OSX */ | |
55 | ||
1a578e9b AC |
56 | #define RGB_TO_ULONG(r, g, b) (((r) << 16) | ((g) << 8) | (b)) |
57 | ||
58 | #define RED_FROM_ULONG(color) ((color) >> 16) | |
59 | #define GREEN_FROM_ULONG(color) (((color) >> 8) & 0xff) | |
60 | #define BLUE_FROM_ULONG(color) ((color) & 0xff) | |
61 | ||
62 | #define BLACK_PIX_DEFAULT(f) RGB_TO_ULONG(0,0,0) | |
63 | #define WHITE_PIX_DEFAULT(f) RGB_TO_ULONG(255,255,255) | |
64 | ||
65 | #define FONT_WIDTH(f) ((f)->max_bounds.width) | |
66 | #define FONT_HEIGHT(f) ((f)->ascent + (f)->descent) | |
67 | #define FONT_BASE(f) ((f)->ascent) | |
68 | #define FONT_DESCENT(f) ((f)->descent) | |
69 | ||
70 | #define FONT_MAX_WIDTH(f) FONT_WIDTH(f) /* fix later */ | |
71 | ||
1a578e9b AC |
72 | /* Structure recording bitmaps and reference count. |
73 | If REFCOUNT is 0 then this record is free to be reused. */ | |
74 | ||
177c0ea7 | 75 | struct mac_bitmap_record |
1a578e9b AC |
76 | { |
77 | char *bitmap_data; | |
78 | int refcount; | |
79 | int height, width; | |
80 | }; | |
81 | ||
82 | ||
83 | /* For each display (currently only one on mac), we have a structure that | |
84 | records information about it. */ | |
85 | ||
86 | struct mac_display_info | |
87 | { | |
88 | /* Chain of all mac_display_info structures. */ | |
89 | struct mac_display_info *next; | |
90 | ||
91 | /* This is a cons cell of the form (NAME . FONT-LIST-CACHE). | |
92 | The same cons cell also appears in x_display_name_list. */ | |
93 | Lisp_Object name_list_element; | |
94 | ||
95 | /* Number of frames that are on this display. */ | |
96 | int reference_count; | |
97 | ||
98 | /* Dots per inch of the screen. */ | |
99 | double resx, resy; | |
100 | ||
101 | /* Number of planes on this screen. */ | |
102 | int n_planes; | |
103 | ||
104 | /* Number of bits per pixel on this screen. */ | |
105 | int n_cbits; | |
106 | ||
107 | /* Dimensions of this screen. */ | |
108 | int height, width; | |
109 | #if 0 | |
110 | int height_in,width_in; | |
111 | #endif | |
112 | ||
113 | /* Mask of things that cause the mouse to be grabbed. */ | |
114 | int grabbed; | |
115 | ||
116 | #if 0 | |
117 | /* Emacs bitmap-id of the default icon bitmap for this frame. | |
118 | Or -1 if none has been allocated yet. */ | |
119 | int icon_bitmap_id; | |
120 | ||
121 | #endif | |
122 | /* The root window of this screen. */ | |
123 | Window root_window; | |
124 | ||
125 | /* The cursor to use for vertical scroll bars. */ | |
365fa1b3 | 126 | Cursor vertical_scroll_bar_cursor; |
1a578e9b | 127 | |
c900f291 KS |
128 | /* Resource data base */ |
129 | XrmDatabase xrdb; | |
130 | ||
1a578e9b AC |
131 | #if 0 |
132 | /* color palette information. */ | |
133 | int has_palette; | |
134 | struct w32_palette_entry * color_list; | |
135 | unsigned num_colors; | |
136 | HPALETTE palette; | |
137 | ||
138 | /* deferred action flags checked when starting frame update. */ | |
139 | int regen_palette; | |
140 | ||
141 | /* Keystroke that has been faked by Emacs and will be ignored when | |
142 | received; value is reset after key is received. */ | |
143 | int faked_key; | |
144 | ||
145 | #endif | |
146 | ||
147 | /* A table of all the fonts we have already loaded. */ | |
148 | struct font_info *font_table; | |
149 | ||
150 | /* The current capacity of font_table. */ | |
151 | int font_table_size; | |
152 | ||
153 | /* The number of fonts actually stored in the font table. | |
154 | font_table[n] is used and valid iff 0 <= n < n_fonts. 0 <= | |
155 | n_fonts <= font_table_size. and font_table[i].name != 0. */ | |
156 | int n_fonts; | |
157 | ||
158 | /* Minimum width over all characters in all fonts in font_table. */ | |
159 | int smallest_char_width; | |
160 | ||
161 | /* Minimum font height over all fonts in font_table. */ | |
162 | int smallest_font_height; | |
163 | ||
164 | /* Reusable Graphics Context for drawing a cursor in a non-default face. */ | |
165 | XGCValues *scratch_cursor_gc; | |
166 | ||
167 | /* These variables describe the range of text currently shown in its | |
168 | mouse-face, together with the window they apply to. As long as | |
169 | the mouse stays within this range, we need not redraw anything on | |
170 | its account. Rows and columns are glyph matrix positions in | |
171 | MOUSE_FACE_WINDOW. */ | |
172 | int mouse_face_beg_row, mouse_face_beg_col; | |
173 | int mouse_face_beg_x, mouse_face_beg_y; | |
174 | int mouse_face_end_row, mouse_face_end_col; | |
175 | int mouse_face_end_x, mouse_face_end_y; | |
176 | int mouse_face_past_end; | |
1a578e9b | 177 | Lisp_Object mouse_face_window; |
1a578e9b | 178 | int mouse_face_face_id; |
e0f712ba | 179 | Lisp_Object mouse_face_overlay; |
1a578e9b AC |
180 | |
181 | /* 1 if a mouse motion event came and we didn't handle it right away because | |
182 | gc was in progress. */ | |
183 | int mouse_face_deferred_gc; | |
184 | ||
185 | /* FRAME and X, Y position of mouse when last checked for | |
186 | highlighting. X and Y can be negative or out of range for the frame. */ | |
187 | struct frame *mouse_face_mouse_frame; | |
188 | ||
189 | int mouse_face_mouse_x, mouse_face_mouse_y; | |
190 | ||
191 | /* Nonzero means defer mouse-motion highlighting. */ | |
192 | int mouse_face_defer; | |
193 | ||
e0f712ba AC |
194 | /* Nonzero means that the mouse highlight should not be shown. */ |
195 | int mouse_face_hidden; | |
196 | ||
1a578e9b AC |
197 | int mouse_face_image_state; |
198 | ||
199 | char *mac_id_name; | |
200 | ||
201 | /* Pointer to bitmap records. */ | |
202 | struct mac_bitmap_record *bitmaps; | |
203 | ||
204 | /* Allocated size of bitmaps field. */ | |
205 | int bitmaps_size; | |
206 | ||
207 | /* Last used bitmap index. */ | |
208 | int bitmaps_last; | |
209 | ||
210 | /* The frame (if any) which has the window that has keyboard focus. | |
211 | Zero if none. This is examined by Ffocus_frame in w32fns.c. Note | |
212 | that a mere EnterNotify event can set this; if you need to know the | |
213 | last frame specified in a FocusIn or FocusOut event, use | |
214 | w32_focus_event_frame. */ | |
215 | struct frame *x_focus_frame; | |
216 | ||
217 | /* The last frame mentioned in a FocusIn or FocusOut event. This is | |
218 | separate from w32_focus_frame, because whether or not LeaveNotify | |
219 | events cause us to lose focus depends on whether or not we have | |
220 | received a FocusIn event for it. */ | |
221 | struct frame *x_focus_event_frame; | |
222 | ||
223 | /* The frame which currently has the visual highlight, and should get | |
224 | keyboard input (other sorts of input have the frame encoded in the | |
225 | event). It points to the focus frame's selected window's | |
226 | frame. It differs from w32_focus_frame when we're using a global | |
227 | minibuffer. */ | |
228 | struct frame *x_highlight_frame; | |
229 | ||
230 | /* Cache of images. */ | |
231 | struct image_cache *image_cache; | |
232 | }; | |
233 | ||
234 | #define x_display_info mac_display_info | |
235 | ||
11c78113 AC |
236 | /* This is a chain of structures for all the X displays currently in use. */ |
237 | extern struct x_display_info *x_display_list; | |
238 | ||
e0f712ba AC |
239 | /* This is a chain of structures for all the displays currently in use. */ |
240 | extern struct mac_display_info one_mac_display_info; | |
241 | ||
1a578e9b | 242 | /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE), |
11c78113 | 243 | one for each element of x_display_list and in the same order. |
1a578e9b AC |
244 | NAME is the name of the frame. |
245 | FONT-LIST-CACHE records previous values returned by x-list-fonts. */ | |
246 | extern Lisp_Object x_display_name_list; | |
247 | ||
248 | /* A flag to control how to display unibyte 8-bit character. */ | |
249 | extern int unibyte_display_via_language_environment; | |
250 | ||
251 | extern struct x_display_info *x_display_info_for_display P_ ((Display *)); | |
252 | extern struct x_display_info *x_display_info_for_name P_ ((Lisp_Object)); | |
253 | ||
254 | extern struct mac_display_info *mac_term_init (); | |
255 | ||
e0f712ba AC |
256 | /* When Emacs uses a tty window, tty_display in frame.c points to an |
257 | x_output struct . */ | |
258 | struct x_output | |
259 | { | |
260 | unsigned long background_pixel; | |
261 | unsigned long foreground_pixel; | |
262 | }; | |
263 | ||
264 | /* The collection of data describing a window on the Mac. */ | |
1a578e9b | 265 | struct mac_output { |
e0f712ba AC |
266 | /* Placeholder for things accessed through output_data.x. Must |
267 | appear first. */ | |
268 | struct x_output x_compatible; | |
269 | ||
270 | /* Menubar "widget" handle. */ | |
271 | int menubar_widget; | |
272 | ||
273 | Window mWP; /* pointer to QuickDraw window */ | |
1a578e9b AC |
274 | FRAME_PTR mFP; /* points back to the frame struct */ |
275 | ||
276 | #if 0 | |
277 | int mNumCols; /* number of characters per column */ | |
278 | int mNumRows; /* number of characters per row */ | |
279 | int mLineHeight; /* height of one line of text in pixels */ | |
280 | int mCharWidth; /* width of one character in pixels */ | |
e0f712ba AC |
281 | int mHomeX; /* X pixel coordinate of lower left |
282 | corner of character at (0, 0) */ | |
283 | int mHomeY; /* Y pixel coordinate of lower left | |
284 | corner of character at (0, 0) */ | |
1a578e9b | 285 | int mHighlight; /* current highlight state (0 = off). */ |
e0f712ba AC |
286 | int mTermWinSize; /* num of lines from top of window |
287 | affected by ins_del_lines; set by | |
288 | set_terminal_window. */ | |
289 | #endif /* 0 */ | |
1a578e9b AC |
290 | |
291 | #if 0 | |
292 | /* stuffs used by xfaces.c */ | |
293 | struct face **param_faces; | |
294 | int n_param_faces; | |
295 | struct face **computed_faces; | |
296 | int n_computed_faces; | |
297 | int size_computed_faces; | |
298 | #endif | |
299 | ||
1a578e9b AC |
300 | /* Here are the Graphics Contexts for the default font. */ |
301 | GC normal_gc; /* Normal video */ | |
302 | GC reverse_gc; /* Reverse video */ | |
303 | GC cursor_gc; /* cursor drawing */ | |
304 | ||
1a578e9b AC |
305 | /* The window used for this frame. |
306 | May be zero while the frame object is being created | |
307 | and the window has not yet been created. */ | |
308 | Window window_desc; | |
309 | ||
310 | /* The window that is the parent of this window. | |
311 | Usually this is a window that was made by the window manager, | |
312 | but it can be the root window, and it can be explicitly specified | |
313 | (see the explicit_parent field, below). */ | |
314 | Window parent_desc; | |
315 | ||
316 | /* Default ASCII font of this frame. */ | |
317 | XFontStruct *font; | |
318 | ||
319 | /* The baseline offset of the default ASCII font. */ | |
320 | int baseline_offset; | |
321 | ||
322 | /* If a fontset is specified for this frame instead of font, this | |
323 | value contains an ID of the fontset, else -1. */ | |
324 | int fontset; | |
325 | ||
326 | /* Pixel values used for various purposes. | |
327 | border_pixel may be -1 meaning use a gray tile. */ | |
328 | unsigned long cursor_pixel; | |
329 | unsigned long border_pixel; | |
330 | unsigned long mouse_pixel; | |
331 | unsigned long cursor_foreground_pixel; | |
332 | ||
333 | /* Foreground color for scroll bars. A value of -1 means use the | |
334 | default (black for non-toolkit scroll bars). */ | |
335 | unsigned long scroll_bar_foreground_pixel; | |
177c0ea7 | 336 | |
1a578e9b AC |
337 | /* Background color for scroll bars. A value of -1 means use the |
338 | default (background color of the frame for non-toolkit scroll | |
339 | bars). */ | |
340 | unsigned long scroll_bar_background_pixel; | |
341 | ||
342 | /* Descriptor for the cursor in use for this window. */ | |
365fa1b3 AC |
343 | Cursor text_cursor; |
344 | Cursor nontext_cursor; | |
345 | Cursor modeline_cursor; | |
346 | Cursor hand_cursor; | |
347 | Cursor hourglass_cursor; | |
348 | Cursor horizontal_drag_cursor; | |
1a578e9b | 349 | #if 0 |
2e875e36 AC |
350 | /* Window whose cursor is hourglass_cursor. This window is temporarily |
351 | mapped to display a hourglass-cursor. */ | |
352 | Window hourglass_window; | |
177c0ea7 | 353 | |
2e875e36 AC |
354 | /* Non-zero means hourglass cursor is currently displayed. */ |
355 | unsigned hourglass_p : 1; | |
1a578e9b AC |
356 | |
357 | /* Flag to set when the window needs to be completely repainted. */ | |
358 | int needs_exposure; | |
359 | ||
360 | #endif | |
361 | ||
1a578e9b AC |
362 | #if 0 |
363 | DWORD dwStyle; | |
364 | #endif | |
365 | ||
1a578e9b AC |
366 | /* This is the Emacs structure for the display this frame is on. */ |
367 | /* struct w32_display_info *display_info; */ | |
368 | ||
369 | /* Nonzero means our parent is another application's window | |
370 | and was explicitly specified. */ | |
371 | char explicit_parent; | |
372 | ||
373 | /* Nonzero means tried already to make this frame visible. */ | |
374 | char asked_for_visible; | |
375 | ||
376 | /* Nonzero means menubar is currently active. */ | |
377 | char menubar_active; | |
378 | ||
e0f712ba AC |
379 | /* Nonzero means a menu command is being processed. */ |
380 | char menu_command_in_progress; | |
381 | ||
1a578e9b AC |
382 | /* Nonzero means menubar is about to become active, but should be |
383 | brought up to date first. */ | |
384 | volatile char pending_menu_activation; | |
385 | ||
1a578e9b AC |
386 | /* Relief GCs, colors etc. */ |
387 | struct relief | |
388 | { | |
389 | XGCValues *gc; | |
390 | unsigned long pixel; | |
391 | int allocated_p; | |
392 | } | |
393 | black_relief, white_relief; | |
394 | ||
395 | /* The background for which the above relief GCs were set up. | |
396 | They are changed only when a different background is involved. */ | |
397 | unsigned long relief_background; | |
398 | }; | |
399 | ||
400 | typedef struct mac_output mac_output; | |
401 | ||
9c3f34b3 KS |
402 | /* Return the X output data for frame F. */ |
403 | #define FRAME_X_OUTPUT(f) ((f)->output_data.mac) | |
404 | ||
1a578e9b AC |
405 | /* Return the Mac window used for displaying data in frame F. */ |
406 | #define FRAME_MAC_WINDOW(f) ((f)->output_data.mac->mWP) | |
9c3f34b3 | 407 | #define FRAME_X_WINDOW(f) ((f)->output_data.mac->mWP) |
1a578e9b | 408 | |
e0f712ba AC |
409 | #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel) |
410 | #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel) | |
1a578e9b AC |
411 | |
412 | #define FRAME_FONT(f) ((f)->output_data.mac->font) | |
413 | #define FRAME_FONTSET(f) ((f)->output_data.mac->fontset) | |
414 | ||
1a578e9b AC |
415 | #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.mac->baseline_offset) |
416 | ||
417 | /* This gives the w32_display_info structure for the display F is on. */ | |
418 | #define FRAME_MAC_DISPLAY_INFO(f) (&one_mac_display_info) | |
419 | #define FRAME_X_DISPLAY_INFO(f) (&one_mac_display_info) | |
420 | ||
421 | /* This is the `Display *' which frame F is on. */ | |
422 | #define FRAME_MAC_DISPLAY(f) (0) | |
9c3f34b3 | 423 | #define FRAME_X_DISPLAY(f) (0) |
1a578e9b AC |
424 | |
425 | /* This is the 'font_info *' which frame F has. */ | |
426 | #define FRAME_MAC_FONT_TABLE(f) (FRAME_MAC_DISPLAY_INFO (f)->font_table) | |
427 | ||
1a578e9b AC |
428 | /* Value is the smallest width of any character in any font on frame F. */ |
429 | ||
430 | #define FRAME_SMALLEST_CHAR_WIDTH(F) \ | |
431 | FRAME_MAC_DISPLAY_INFO(F)->smallest_char_width | |
432 | ||
433 | /* Value is the smallest height of any font on frame F. */ | |
434 | ||
435 | #define FRAME_SMALLEST_FONT_HEIGHT(F) \ | |
436 | FRAME_MAC_DISPLAY_INFO(F)->smallest_font_height | |
437 | ||
438 | /* Return a pointer to the image cache of frame F. */ | |
439 | ||
440 | #define FRAME_X_IMAGE_CACHE(F) FRAME_MAC_DISPLAY_INFO ((F))->image_cache | |
441 | ||
442 | \f | |
1a578e9b AC |
443 | /* Mac-specific scroll bar stuff. */ |
444 | ||
445 | /* We represent scroll bars as lisp vectors. This allows us to place | |
446 | references to them in windows without worrying about whether we'll | |
447 | end up with windows referring to dead scroll bars; the garbage | |
448 | collector will free it when its time comes. | |
449 | ||
450 | We use struct scroll_bar as a template for accessing fields of the | |
451 | vector. */ | |
452 | ||
453 | struct scroll_bar { | |
454 | ||
455 | /* These fields are shared by all vectors. */ | |
456 | EMACS_INT size_from_Lisp_Vector_struct; | |
457 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
458 | ||
459 | /* The window we're a scroll bar for. */ | |
460 | Lisp_Object window; | |
461 | ||
462 | /* The next and previous in the chain of scroll bars in this frame. */ | |
463 | Lisp_Object next, prev; | |
464 | ||
465 | /* The Mac control handle of this scroll bar. Since this is a full | |
466 | 32-bit quantity, we store it split into two 32-bit values. */ | |
467 | Lisp_Object control_handle_low, control_handle_high; | |
468 | ||
469 | /* The position and size of the scroll bar in pixels, relative to the | |
470 | frame. */ | |
471 | Lisp_Object top, left, width, height; | |
472 | ||
473 | /* The starting and ending positions of the handle, relative to the | |
474 | handle area (i.e. zero is the top position, not | |
475 | SCROLL_BAR_TOP_BORDER). If they're equal, that means the handle | |
476 | hasn't been drawn yet. | |
477 | ||
478 | These are not actually the locations where the beginning and end | |
479 | are drawn; in order to keep handles from becoming invisible when | |
480 | editing large files, we establish a minimum height by always | |
481 | drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below | |
482 | where they would be normally; the bottom and top are in a | |
483 | different co-ordinate system. */ | |
484 | Lisp_Object start, end; | |
485 | ||
486 | /* If the scroll bar handle is currently being dragged by the user, | |
487 | this is the number of pixels from the top of the handle to the | |
488 | place where the user grabbed it. If the handle isn't currently | |
489 | being dragged, this is Qnil. */ | |
490 | Lisp_Object dragging; | |
491 | }; | |
492 | ||
493 | /* The number of elements a vector holding a struct scroll_bar needs. */ | |
494 | #define SCROLL_BAR_VEC_SIZE \ | |
495 | ((sizeof (struct scroll_bar) \ | |
496 | - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *)) \ | |
497 | / sizeof (Lisp_Object)) | |
498 | ||
499 | /* Turning a lisp vector value into a pointer to a struct scroll_bar. */ | |
500 | #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec)) | |
501 | ||
502 | ||
503 | /* Building a 32-bit C integer from two 16-bit lisp integers. */ | |
504 | #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low)) | |
505 | ||
506 | /* Setting two lisp integers to the low and high words of a 32-bit C int. */ | |
507 | #define SCROLL_BAR_UNPACK(low, high, int32) \ | |
508 | (XSETINT ((low), (int32) & 0xffff), \ | |
509 | XSETINT ((high), ((int32) >> 16) & 0xffff)) | |
510 | ||
511 | ||
e0f712ba AC |
512 | /* Extract the Mac control handle of the scroll bar from a struct |
513 | scroll_bar. */ | |
1a578e9b | 514 | #define SCROLL_BAR_CONTROL_HANDLE(ptr) \ |
e0f712ba AC |
515 | ((ControlHandle) SCROLL_BAR_PACK ((ptr)->control_handle_low, \ |
516 | (ptr)->control_handle_high)) | |
1a578e9b AC |
517 | |
518 | /* Store a Mac control handle in a struct scroll_bar. */ | |
519 | #define SET_SCROLL_BAR_CONTROL_HANDLE(ptr, id) \ | |
e0f712ba AC |
520 | (SCROLL_BAR_UNPACK ((ptr)->control_handle_low, \ |
521 | (ptr)->control_handle_high, (int) id)) | |
1a578e9b AC |
522 | |
523 | /* Return the inside width of a vertical scroll bar, given the outside | |
524 | width. */ | |
525 | #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \ | |
526 | ((width) \ | |
527 | - VERTICAL_SCROLL_BAR_LEFT_BORDER \ | |
528 | - VERTICAL_SCROLL_BAR_RIGHT_BORDER \ | |
529 | - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2) | |
530 | ||
531 | /* Return the length of the rectangle within which the top of the | |
532 | handle must stay. This isn't equivalent to the inside height, | |
177c0ea7 | 533 | because the scroll bar handle has a minimum height. |
1a578e9b AC |
534 | |
535 | This is the real range of motion for the scroll bar, so when we're | |
536 | scaling buffer positions to scroll bar positions, we use this, not | |
537 | VERTICAL_SCROLL_BAR_INSIDE_HEIGHT. */ | |
538 | #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \ | |
e0f712ba AC |
539 | (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) \ |
540 | - VERTICAL_SCROLL_BAR_MIN_HANDLE - UP_AND_DOWN_ARROWS) | |
1a578e9b AC |
541 | |
542 | /* Return the inside height of vertical scroll bar, given the outside | |
543 | height. See VERTICAL_SCROLL_BAR_TOP_RANGE too. */ | |
544 | #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \ | |
e0f712ba AC |
545 | ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER \ |
546 | - VERTICAL_SCROLL_BAR_BOTTOM_BORDER) | |
1a578e9b AC |
547 | |
548 | ||
549 | /* Border widths for scroll bars. | |
550 | ||
551 | Scroll bar windows don't have any borders; their border width is | |
552 | set to zero, and we redraw borders ourselves. This makes the code | |
553 | a bit cleaner, since we don't have to convert between outside width | |
554 | (used when relating to the rest of the screen) and inside width | |
555 | (used when sizing and drawing the scroll bar window itself). | |
556 | ||
557 | The handle moves up and down/back and forth in a rectangle inset | |
558 | from the edges of the scroll bar. These are widths by which we | |
559 | inset the handle boundaries from the scroll bar edges. */ | |
560 | #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0) | |
561 | #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0) | |
562 | #define VERTICAL_SCROLL_BAR_TOP_BORDER (0) | |
563 | #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (0) | |
564 | ||
565 | /* Minimum lengths for scroll bar handles, in pixels. */ | |
566 | #define VERTICAL_SCROLL_BAR_MIN_HANDLE (16) | |
567 | ||
568 | /* Combined length of up and down arrow boxes in scroll bars, in pixels. */ | |
569 | #define UP_AND_DOWN_ARROWS (32) | |
570 | ||
571 | /* Trimming off a few pixels from each side prevents | |
572 | text from glomming up against the scroll bar */ | |
573 | #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0) | |
574 | ||
1a578e9b AC |
575 | |
576 | struct frame * check_x_frame (Lisp_Object); | |
577 | ||
31ee2d81 KS |
578 | void activate_scroll_bars (FRAME_PTR); |
579 | void deactivate_scroll_bars (FRAME_PTR); | |
580 | ||
9c3f34b3 KS |
581 | #define FONT_TYPE_FOR_UNIBYTE(font, ch) 0 |
582 | #define FONT_TYPE_FOR_MULTIBYTE(font, ch) 0 | |
583 |