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1 | /* Definitions and headers for communication with Win32 GUI. |
2 | Copyright (C) 1995 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 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* Added by Kevin Gallo */ | |
21 | ||
22 | #include <win32.h> | |
23 | ||
24 | /* The class of this X application. */ | |
25 | #define EMACS_CLASS "Emacs" | |
26 | \f | |
27 | #define BLACK_PIX_DEFAULT(f) RGB(0,0,0) | |
28 | #define WHITE_PIX_DEFAULT(f) RGB(255,255,255) | |
29 | ||
30 | #define FONT_WIDTH(f) ((f)->tm.tmMaxCharWidth) | |
31 | #define FONT_HEIGHT(f) ((f)->tm.tmHeight) | |
32 | #define FONT_BASE(f) ((f)->tm.tmAscent) | |
33 | ||
34 | #define CHECK_WIN32_FRAME(f, frame) \ | |
35 | if (NILP (frame)) \ | |
36 | f = selected_frame; \ | |
37 | else \ | |
38 | { \ | |
39 | CHECK_LIVE_FRAME (frame, 0); \ | |
40 | f = XFRAME (frame); \ | |
41 | } \ | |
42 | if (! FRAME_WIN32_P (f)) | |
43 | ||
44 | /* Indicates whether we are in the readsocket call and the message we | |
45 | are processing in the current loop */ | |
46 | ||
47 | extern MSG CurMsg; | |
48 | extern BOOL bUseDflt; | |
49 | ||
50 | extern struct frame *x_window_to_frame (); | |
51 | ||
52 | enum text_cursor_kinds { | |
53 | filled_box_cursor, hollow_box_cursor, bar_cursor | |
54 | }; | |
55 | ||
56 | /* This data type is used for the font_table field | |
57 | of struct win32_display_info. */ | |
58 | ||
59 | struct font_info | |
60 | { | |
61 | XFontStruct *font; | |
62 | char *name; | |
63 | }; | |
64 | ||
65 | /* Structure recording bitmaps and reference count. | |
66 | If REFCOUNT is 0 then this record is free to be reused. */ | |
67 | ||
68 | struct win32_bitmap_record | |
69 | { | |
70 | Pixmap pixmap; | |
71 | char *file; | |
72 | HINSTANCE hinst; /* Used to load the file */ | |
73 | int refcount; | |
74 | /* Record some info about this pixmap. */ | |
75 | int height, width, depth; | |
76 | }; | |
77 | \f | |
78 | /* For each display (currently only one on win32), we have a structure that | |
79 | records information about it. */ | |
80 | ||
81 | struct win32_display_info | |
82 | { | |
83 | /* Chain of all win32_display_info structures. */ | |
84 | struct win32_display_info *next; | |
85 | /* This is a cons cell of the form (NAME . FONT-LIST-CACHE). | |
86 | The same cons cell also appears in x_display_name_list. */ | |
87 | Lisp_Object name_list_element; | |
88 | /* Number of frames that are on this display. */ | |
89 | int reference_count; | |
90 | /* Number of planes on this screen. */ | |
91 | int n_planes; | |
92 | /* Number of bits per pixel on this screen. */ | |
93 | int n_cbits; | |
94 | /* Dimensions of this screen. */ | |
95 | int height, width; | |
96 | int height_in,width_in; | |
97 | /* Mask of things that cause the mouse to be grabbed. */ | |
98 | int grabbed; | |
99 | /* The root window of this screen. */ | |
100 | Window root_window; | |
101 | /* The cursor to use for vertical scroll bars. */ | |
102 | Cursor vertical_scroll_bar_cursor; | |
103 | ||
104 | /* A table of all the fonts we have already loaded. */ | |
105 | struct font_info *font_table; | |
106 | ||
107 | /* The current capacity of x_font_table. */ | |
108 | int font_table_size; | |
109 | ||
110 | /* These variables describe the range of text currently shown | |
111 | in its mouse-face, together with the window they apply to. | |
112 | As long as the mouse stays within this range, we need not | |
113 | redraw anything on its account. */ | |
114 | int mouse_face_beg_row, mouse_face_beg_col; | |
115 | int mouse_face_end_row, mouse_face_end_col; | |
116 | int mouse_face_past_end; | |
117 | Lisp_Object mouse_face_window; | |
118 | int mouse_face_face_id; | |
119 | ||
120 | /* 1 if a mouse motion event came and we didn't handle it right away because | |
121 | gc was in progress. */ | |
122 | int mouse_face_deferred_gc; | |
123 | ||
124 | /* FRAME and X, Y position of mouse when last checked for | |
125 | highlighting. X and Y can be negative or out of range for the frame. */ | |
126 | struct frame *mouse_face_mouse_frame; | |
127 | int mouse_face_mouse_x, mouse_face_mouse_y; | |
128 | ||
129 | /* Nonzero means defer mouse-motion highlighting. */ | |
130 | int mouse_face_defer; | |
131 | ||
132 | char *win32_id_name; | |
133 | ||
134 | /* The number of fonts actually stored in win32_font_table. | |
135 | font_table[n] is used and valid iff 0 <= n < n_fonts. | |
136 | 0 <= n_fonts <= font_table_size. */ | |
137 | int n_fonts; | |
138 | ||
139 | /* Pointer to bitmap records. */ | |
140 | struct win32_bitmap_record *bitmaps; | |
141 | ||
142 | /* Allocated size of bitmaps field. */ | |
143 | int bitmaps_size; | |
144 | ||
145 | /* Last used bitmap index. */ | |
146 | int bitmaps_last; | |
147 | ||
148 | /* The frame (if any) which has the window that has keyboard focus. | |
149 | Zero if none. This is examined by Ffocus_frame in w32fns.c. Note | |
150 | that a mere EnterNotify event can set this; if you need to know the | |
151 | last frame specified in a FocusIn or FocusOut event, use | |
152 | win32_focus_event_frame. */ | |
153 | struct frame *win32_focus_frame; | |
154 | ||
155 | /* The last frame mentioned in a FocusIn or FocusOut event. This is | |
156 | separate from win32_focus_frame, because whether or not LeaveNotify | |
157 | events cause us to lose focus depends on whether or not we have | |
158 | received a FocusIn event for it. */ | |
159 | struct frame *win32_focus_event_frame; | |
160 | ||
161 | /* The frame which currently has the visual highlight, and should get | |
162 | keyboard input (other sorts of input have the frame encoded in the | |
163 | event). It points to the focus frame's selected window's | |
164 | frame. It differs from win32_focus_frame when we're using a global | |
165 | minibuffer. */ | |
166 | struct frame *win32_highlight_frame; | |
167 | }; | |
168 | ||
169 | /* This is a chain of structures for all the displays currently in use. */ | |
170 | extern struct win32_display_info one_win32_display_info; | |
171 | ||
172 | /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE), | |
173 | one for each element of win32_display_list and in the same order. | |
174 | NAME is the name of the frame. | |
175 | FONT-LIST-CACHE records previous values returned by x-list-fonts. */ | |
176 | extern Lisp_Object win32_display_name_list; | |
177 | ||
178 | extern struct win32_display_info *x_display_info_for_display (); | |
179 | extern struct win32_display_info *x_display_info_for_name (); | |
180 | ||
181 | extern struct win32_display_info *win32_term_init (); | |
182 | \f | |
183 | /* Each Win32 frame object points to its own struct win32_display object | |
184 | in the output_data.win32 field. The win32_display structure contains all | |
185 | the information that is specific to Win32 windows. */ | |
186 | ||
187 | struct win32_output | |
188 | { | |
189 | /* Position of the Win32 window (x and y offsets in root window). */ | |
190 | int left_pos; | |
191 | int top_pos; | |
192 | ||
193 | /* Border width of the Win32 window as known by the window system. */ | |
194 | int border_width; | |
195 | ||
196 | /* Size of the Win32 window in pixels. */ | |
197 | int pixel_height, pixel_width; | |
198 | ||
199 | /* Height of a line, in pixels. */ | |
200 | int line_height; | |
201 | ||
202 | /* Width of the internal border. This is a line of background color | |
203 | just inside the window's border. When the frame is selected, | |
204 | a highlighting is displayed inside the internal border. */ | |
205 | int internal_border_width; | |
206 | ||
207 | /* The window used for this frame. | |
208 | May be zero while the frame object is being created | |
209 | and the window has not yet been created. */ | |
210 | Window window_desc; | |
211 | ||
212 | /* The window that is the parent of this window. | |
213 | Usually this is a window that was made by the window manager, | |
214 | but it can be the root window, and it can be explicitly specified | |
215 | (see the explicit_parent field, below). */ | |
216 | Window parent_desc; | |
217 | ||
218 | XFontStruct *font; | |
219 | ||
220 | /* Pixel values used for various purposes. | |
221 | border_pixel may be -1 meaning use a gray tile. */ | |
222 | unsigned long background_pixel; | |
223 | unsigned long foreground_pixel; | |
224 | unsigned long cursor_pixel; | |
225 | unsigned long border_pixel; | |
226 | unsigned long mouse_pixel; | |
227 | unsigned long cursor_foreground_pixel; | |
228 | ||
229 | /* Descriptor for the cursor in use for this window. */ | |
230 | Cursor text_cursor; | |
231 | Cursor nontext_cursor; | |
232 | Cursor modeline_cursor; | |
233 | Cursor cross_cursor; | |
234 | ||
235 | /* Flag to set when the window needs to be completely repainted. */ | |
236 | int needs_exposure; | |
237 | ||
238 | /* What kind of text cursor is drawn in this window right now? | |
239 | (If there is no cursor (phys_cursor_x < 0), then this means nothing.) */ | |
240 | enum text_cursor_kinds current_cursor; | |
241 | ||
242 | /* What kind of text cursor should we draw in the future? | |
243 | This should always be filled_box_cursor or bar_cursor. */ | |
244 | enum text_cursor_kinds desired_cursor; | |
245 | ||
246 | /* Width of bar cursor (if we are using that). */ | |
247 | int cursor_width; | |
248 | ||
249 | DWORD dwStyle; | |
250 | ||
251 | /* The size of the extra width currently allotted for vertical | |
252 | scroll bars, in pixels. */ | |
253 | int vertical_scroll_bar_extra; | |
254 | ||
255 | /* Table of parameter faces for this frame. Any resources (pixel | |
256 | values, fonts) referred to here have been allocated explicitly | |
257 | for this face, and should be freed if we change the face. */ | |
258 | struct face **param_faces; | |
259 | int n_param_faces; | |
260 | ||
261 | /* Table of computed faces for this frame. These are the faces | |
262 | whose indexes go into the upper bits of a glyph, computed by | |
263 | combining the parameter faces specified by overlays, text | |
264 | properties, and what have you. The resources mentioned here | |
265 | are all shared with parameter faces. */ | |
266 | struct face **computed_faces; | |
267 | int n_computed_faces; /* How many are valid */ | |
268 | int size_computed_faces; /* How many are allocated */ | |
269 | ||
270 | /* This is the gravity value for the specified window position. */ | |
271 | int win_gravity; | |
272 | ||
273 | /* The geometry flags for this window. */ | |
274 | int size_hint_flags; | |
275 | ||
276 | /* This is the Emacs structure for the display this frame is on. */ | |
277 | /* struct win32_display_info *display_info; */ | |
278 | ||
279 | /* Nonzero means our parent is another application's window | |
280 | and was explicitly specified. */ | |
281 | char explicit_parent; | |
282 | ||
283 | /* Nonzero means tried already to make this frame visible. */ | |
284 | char asked_for_visible; | |
285 | }; | |
286 | ||
287 | /* Get at the computed faces of an X window frame. */ | |
288 | #define FRAME_PARAM_FACES(f) ((f)->output_data.win32->param_faces) | |
289 | #define FRAME_N_PARAM_FACES(f) ((f)->output_data.win32->n_param_faces) | |
290 | #define FRAME_DEFAULT_PARAM_FACE(f) (FRAME_PARAM_FACES (f)[0]) | |
291 | #define FRAME_MODE_LINE_PARAM_FACE(f) (FRAME_PARAM_FACES (f)[1]) | |
292 | ||
293 | #define FRAME_COMPUTED_FACES(f) ((f)->output_data.win32->computed_faces) | |
294 | #define FRAME_N_COMPUTED_FACES(f) ((f)->output_data.win32->n_computed_faces) | |
295 | #define FRAME_SIZE_COMPUTED_FACES(f) ((f)->output_data.win32->size_computed_faces) | |
296 | #define FRAME_DEFAULT_FACE(f) ((f)->output_data.win32->computed_faces[0]) | |
297 | #define FRAME_MODE_LINE_FACE(f) ((f)->output_data.win32->computed_faces[1]) | |
298 | ||
299 | /* Return the window associated with the frame F. */ | |
300 | #define FRAME_WIN32_WINDOW(f) ((f)->output_data.win32->window_desc) | |
301 | ||
302 | #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.win32->foreground_pixel) | |
303 | #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.win32->background_pixel) | |
304 | #define FRAME_FONT(f) ((f)->output_data.win32->font) | |
305 | #define FRAME_INTERNAL_BORDER_WIDTH(f) ((f)->output_data.win32->internal_border_width) | |
306 | ||
307 | /* This gives the win32_display_info structure for the display F is on. */ | |
308 | #define FRAME_WIN32_DISPLAY_INFO(f) (&one_win32_display_info) | |
309 | ||
310 | /* These two really ought to be called FRAME_PIXEL_{WIDTH,HEIGHT}. */ | |
311 | #define PIXEL_WIDTH(f) ((f)->output_data.win32->pixel_width) | |
312 | #define PIXEL_HEIGHT(f) ((f)->output_data.win32->pixel_height) | |
313 | #define FRAME_LINE_HEIGHT(f) ((f)->output_data.win32->line_height) | |
314 | ||
315 | #define FRAME_DESIRED_CURSOR(f) ((f)->output_data.win32->desired_cursor) | |
316 | ||
317 | \f | |
318 | /* Win32-specific scroll bar stuff. */ | |
319 | ||
320 | /* We represent scroll bars as lisp vectors. This allows us to place | |
321 | references to them in windows without worrying about whether we'll | |
322 | end up with windows referring to dead scroll bars; the garbage | |
323 | collector will free it when its time comes. | |
324 | ||
325 | We use struct scroll_bar as a template for accessing fields of the | |
326 | vector. */ | |
327 | ||
328 | struct scroll_bar { | |
329 | ||
330 | /* These fields are shared by all vectors. */ | |
331 | EMACS_INT size_from_Lisp_Vector_struct; | |
332 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
333 | ||
334 | /* The window we're a scroll bar for. */ | |
335 | Lisp_Object window; | |
336 | ||
337 | /* The next and previous in the chain of scroll bars in this frame. */ | |
338 | Lisp_Object next, prev; | |
339 | ||
340 | /* The window representing this scroll bar. Since this is a full | |
341 | 32-bit quantity, we store it split into two 32-bit values. */ | |
342 | Lisp_Object win32_window_low, win32_window_high; | |
343 | ||
344 | /* The position and size of the scroll bar in pixels, relative to the | |
345 | frame. */ | |
346 | Lisp_Object top, left, width, height; | |
347 | ||
348 | /* The starting and ending positions of the handle, relative to the | |
349 | handle area (i.e. zero is the top position, not | |
350 | SCROLL_BAR_TOP_BORDER). If they're equal, that means the handle | |
351 | hasn't been drawn yet. | |
352 | ||
353 | These are not actually the locations where the beginning and end | |
354 | are drawn; in order to keep handles from becoming invisible when | |
355 | editing large files, we establish a minimum height by always | |
356 | drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below | |
357 | where they would be normally; the bottom and top are in a | |
358 | different co-ordinate system. */ | |
359 | Lisp_Object start, end; | |
360 | ||
361 | /* If the scroll bar handle is currently being dragged by the user, | |
362 | this is the number of pixels from the top of the handle to the | |
363 | place where the user grabbed it. If the handle isn't currently | |
364 | being dragged, this is Qnil. */ | |
365 | Lisp_Object dragging; | |
366 | }; | |
367 | ||
368 | /* The number of elements a vector holding a struct scroll_bar needs. */ | |
369 | #define SCROLL_BAR_VEC_SIZE \ | |
370 | ((sizeof (struct scroll_bar) \ | |
371 | - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *)) \ | |
372 | / sizeof (Lisp_Object)) | |
373 | ||
374 | /* Turning a lisp vector value into a pointer to a struct scroll_bar. */ | |
375 | #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec)) | |
376 | ||
377 | ||
378 | /* Building a 32-bit C integer from two 16-bit lisp integers. */ | |
379 | #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low)) | |
380 | ||
381 | /* Setting two lisp integers to the low and high words of a 32-bit C int. */ | |
382 | #define SCROLL_BAR_UNPACK(low, high, int32) \ | |
383 | (XSETINT ((low), (int32) & 0xffff), \ | |
384 | XSETINT ((high), ((int32) >> 16) & 0xffff)) | |
385 | ||
386 | ||
387 | /* Extract the window id of the scroll bar from a struct scroll_bar. */ | |
388 | #define SCROLL_BAR_WIN32_WINDOW(ptr) \ | |
389 | ((Window) SCROLL_BAR_PACK ((ptr)->win32_window_low, (ptr)->win32_window_high)) | |
390 | ||
391 | /* Store a window id in a struct scroll_bar. */ | |
392 | #define SET_SCROLL_BAR_WIN32_WINDOW(ptr, id) \ | |
393 | (SCROLL_BAR_UNPACK ((ptr)->win32_window_low, (ptr)->win32_window_high, (int) id)) | |
394 | ||
395 | ||
396 | /* Return the outside pixel height for a vertical scroll bar HEIGHT | |
397 | rows high on frame F. */ | |
398 | #define VERTICAL_SCROLL_BAR_PIXEL_HEIGHT(f, height) \ | |
399 | ((height) * (f)->output_data.win32->line_height) | |
400 | ||
401 | /* Return the inside width of a vertical scroll bar, given the outside | |
402 | width. */ | |
403 | #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(width) \ | |
404 | ((width) - VERTICAL_SCROLL_BAR_LEFT_BORDER - VERTICAL_SCROLL_BAR_RIGHT_BORDER) | |
405 | ||
406 | /* Return the length of the rectangle within which the top of the | |
407 | handle must stay. This isn't equivalent to the inside height, | |
408 | because the scroll bar handle has a minimum height. | |
409 | ||
410 | This is the real range of motion for the scroll bar, so when we're | |
411 | scaling buffer positions to scroll bar positions, we use this, not | |
412 | VERTICAL_SCROLL_BAR_INSIDE_HEIGHT. */ | |
413 | #define VERTICAL_SCROLL_BAR_TOP_RANGE(height) \ | |
414 | (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (height) - VERTICAL_SCROLL_BAR_MIN_HANDLE) | |
415 | ||
416 | /* Return the inside height of vertical scroll bar, given the outside | |
417 | height. See VERTICAL_SCROLL_BAR_TOP_RANGE too. */ | |
418 | #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(height) \ | |
419 | ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER) | |
420 | ||
421 | ||
422 | /* Border widths for scroll bars. | |
423 | ||
424 | Scroll bar windows don't have any borders; their border width is | |
425 | set to zero, and we redraw borders ourselves. This makes the code | |
426 | a bit cleaner, since we don't have to convert between outside width | |
427 | (used when relating to the rest of the screen) and inside width | |
428 | (used when sizing and drawing the scroll bar window itself). | |
429 | ||
430 | The handle moves up and down/back and forth in a rectangle inset | |
431 | from the edges of the scroll bar. These are widths by which we | |
432 | inset the handle boundaries from the scroll bar edges. */ | |
433 | #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0) | |
434 | #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0) | |
435 | #define VERTICAL_SCROLL_BAR_TOP_BORDER (0) | |
436 | #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (0) | |
437 | ||
438 | /* Minimum lengths for scroll bar handles, in pixels. */ | |
439 | #define VERTICAL_SCROLL_BAR_MIN_HANDLE (0) | |
440 | ||
441 | \f | |
442 | /* Manipulating pixel sizes and character sizes. | |
443 | Knowledge of which factors affect the overall size of the window should | |
444 | be hidden in these macros, if that's possible. | |
445 | ||
446 | Return the upper/left pixel position of the character cell on frame F | |
447 | at ROW/COL. */ | |
448 | #define CHAR_TO_PIXEL_ROW(f, row) \ | |
449 | ((f)->output_data.win32->internal_border_width \ | |
450 | + (row) * (f)->output_data.win32->line_height) | |
451 | #define CHAR_TO_PIXEL_COL(f, col) \ | |
452 | ((f)->output_data.win32->internal_border_width \ | |
453 | + (col) * FONT_WIDTH ((f)->output_data.win32->font)) | |
454 | ||
455 | /* Return the pixel width/height of frame F if it has | |
456 | WIDTH columns/HEIGHT rows. */ | |
457 | #define CHAR_TO_PIXEL_WIDTH(f, width) \ | |
458 | (CHAR_TO_PIXEL_COL (f, width) \ | |
459 | + (f)->output_data.win32->vertical_scroll_bar_extra \ | |
460 | + (f)->output_data.win32->internal_border_width) | |
461 | #define CHAR_TO_PIXEL_HEIGHT(f, height) \ | |
462 | (CHAR_TO_PIXEL_ROW (f, height) \ | |
463 | + (f)->output_data.win32->internal_border_width) | |
464 | ||
465 | ||
466 | /* Return the row/column (zero-based) of the character cell containing | |
467 | the pixel on FRAME at ROW/COL. */ | |
468 | #define PIXEL_TO_CHAR_ROW(f, row) \ | |
469 | (((row) - (f)->output_data.win32->internal_border_width) \ | |
470 | / (f)->output_data.win32->line_height) | |
471 | #define PIXEL_TO_CHAR_COL(f, col) \ | |
472 | (((col) - (f)->output_data.win32->internal_border_width) \ | |
473 | / FONT_WIDTH ((f)->output_data.win32->font)) | |
474 | ||
475 | /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on | |
476 | frame F? */ | |
477 | #define PIXEL_TO_CHAR_WIDTH(f, width) \ | |
478 | (PIXEL_TO_CHAR_COL (f, ((width) \ | |
479 | - (f)->output_data.win32->internal_border_width \ | |
480 | - (f)->output_data.win32->vertical_scroll_bar_extra))) | |
481 | #define PIXEL_TO_CHAR_HEIGHT(f, height) \ | |
482 | (PIXEL_TO_CHAR_ROW (f, ((height) \ | |
483 | - (f)->output_data.win32->internal_border_width))) | |
484 | \f | |
485 | /* Interface to the face code functions. */ | |
486 | ||
487 | /* Create the first two computed faces for a frame -- the ones that | |
488 | have GC's. */ | |
489 | extern void init_frame_faces (/* FRAME_PTR */); | |
490 | ||
491 | /* Free the resources for the faces associated with a frame. */ | |
492 | extern void free_frame_faces (/* FRAME_PTR */); | |
493 | ||
494 | /* Given a computed face, find or make an equivalent display face | |
495 | in face_vector, and return a pointer to it. */ | |
496 | extern struct face *intern_face (/* FRAME_PTR, struct face * */); | |
497 | ||
498 | /* Given a frame and a face name, return the face's ID number, or | |
499 | zero if it isn't a recognized face name. */ | |
500 | extern int face_name_id_number (/* FRAME_PTR, Lisp_Object */); | |
501 | ||
502 | /* Return non-zero if FONT1 and FONT2 have the same size bounding box. | |
503 | We assume that they're both character-cell fonts. */ | |
504 | extern int same_size_fonts (/* XFontStruct *, XFontStruct * */); | |
505 | ||
506 | /* Recompute the GC's for the default and modeline faces. | |
507 | We call this after changing frame parameters on which those GC's | |
508 | depend. */ | |
509 | extern void recompute_basic_faces (/* FRAME_PTR */); | |
510 | ||
511 | /* Return the face ID associated with a buffer position POS. Store | |
512 | into *ENDPTR the next position at which a different face is | |
513 | needed. This does not take account of glyphs that specify their | |
514 | own face codes. F is the frame in use for display, and W is a | |
515 | window displaying the current buffer. | |
516 | ||
517 | REGION_BEG, REGION_END delimit the region, so it can be highlighted. */ | |
518 | extern int compute_char_face (/* FRAME_PTR frame, | |
519 | struct window *w, | |
520 | int pos, | |
521 | int region_beg, int region_end, | |
522 | int *endptr */); | |
523 | /* Return the face ID to use to display a special glyph which selects | |
524 | FACE_CODE as the face ID, assuming that ordinarily the face would | |
525 | be BASIC_FACE. F is the frame. */ | |
526 | extern int compute_glyph_face (/* FRAME_PTR, int */); | |
527 | ||
528 | extern void win32_fill_rect (); | |
529 | extern void win32_clear_window (); | |
530 | ||
531 | #define win32_fill_area(f,hdc,pix,x,y,nx,ny) \ | |
532 | { \ | |
533 | RECT rect; \ | |
534 | rect.left = x; \ | |
535 | rect.top = y; \ | |
536 | rect.right = x + nx; \ | |
537 | rect.bottom = y + ny; \ | |
538 | win32_fill_rect (f,hdc,pix,&rect); \ | |
539 | } | |
540 | ||
541 | #define win32_clear_rect(f,hdc,lprect) \ | |
542 | win32_fill_rect (f,hdc,f->output_data.win32->background_pixel,lprect) | |
543 | ||
544 | #define win32_clear_area(f,hdc,x,y,nx,ny) \ | |
545 | win32_fill_area (f,hdc,f->output_data.win32->background_pixel,x,y,nx,ny) | |
546 | ||
547 | extern XFontStruct *win32_load_font (); | |
548 | extern void win32_unload_font (); | |
549 | ||
550 | extern HDC map_mode(); | |
551 | ||
552 | #define my_get_dc(hwnd) (map_mode (GetDC (hwnd))) | |
553 | ||
554 | #define WM_EMACS_START (WM_USER + 1) | |
555 | #define WM_EMACS_KILL (WM_EMACS_START + 0x00) | |
556 | #define WM_EMACS_CREATEWINDOW (WM_EMACS_START + 0x01) | |
557 | #define WM_EMACS_DONE (WM_EMACS_START + 0x02) | |
558 | #define WM_EMACS_CREATESCROLLBAR (WM_EMACS_START + 0x03) | |
559 | #define WM_EMACS_DESTROYWINDOW (WM_EMACS_START + 0x04) | |
560 | #define WM_EMACS_END (WM_EMACS_START + 0x10) | |
561 | ||
562 | #define WND_X_UNITS_INDEX (0) | |
563 | #define WND_Y_UNITS_INDEX (4) | |
564 | #define WND_BACKGROUND_INDEX (8) | |
565 | ||
566 | #define WND_LAST_INDEX (16) | |
567 | #define WND_EXTRA_BYTES (WND_LAST_INDEX) | |
568 | ||
569 | extern DWORD dwWinThreadId; | |
570 | extern HANDLE hWinThread; | |
571 | extern DWORD dwMainThreadId; | |
572 | extern HANDLE hMainThread; | |
573 | ||
574 | typedef struct Win32Msg { | |
575 | MSG msg; | |
576 | DWORD dwModifiers; | |
577 | RECT rect; | |
578 | } Win32Msg; | |
579 | ||
580 | extern void init_crit (); | |
581 | extern void enter_crit (); | |
582 | extern void leave_crit (); | |
583 | extern void delete_crit (); | |
584 | ||
585 | extern BOOL get_next_msg (); | |
586 | extern BOOL post_msg (); | |
587 | extern void wait_for_sync (); | |
588 | ||
589 | extern BOOL parse_button (); |