Commit | Line | Data |
---|---|---|
e9e23e23 | 1 | /* Functions taken directly from X sources for use with the Microsoft W32 API. |
429ab54e GM |
2 | Copyright (C) 1989, 1992, 1993, 1994, 1995, 1999, 2001, 2002, 2003, |
3 | 2004, 2005, 2006, 2007 Free Software Foundation, Inc. | |
ee78dc32 GV |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 9 | the Free Software Foundation; either version 3, or (at your option) |
ee78dc32 GV |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
ee78dc32 | 21 | |
ee78dc32 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
ee78dc32 GV |
24 | #include <stdio.h> |
25 | #include "lisp.h" | |
3e4731a3 | 26 | #include "keyboard.h" |
97aab3a2 | 27 | #include "frame.h" |
bd6bb544 GV |
28 | #include "charset.h" |
29 | #include "fontset.h" | |
ee78dc32 GV |
30 | #include "blockinput.h" |
31 | #include "w32term.h" | |
32 | #include "windowsx.h" | |
33 | ||
34 | #define myalloc(cb) GlobalAllocPtr (GPTR, cb) | |
35 | #define myfree(lp) GlobalFreePtr (lp) | |
36 | ||
dd118a07 | 37 | CRITICAL_SECTION critsect; |
ee78dc32 | 38 | extern HANDLE keyboard_handle; |
97aab3a2 | 39 | HANDLE input_available = NULL; |
1ce3dc2b | 40 | HANDLE interrupt_handle = NULL; |
ee78dc32 | 41 | |
177c0ea7 | 42 | void |
ee78dc32 GV |
43 | init_crit () |
44 | { | |
dd118a07 | 45 | InitializeCriticalSection (&critsect); |
ee78dc32 | 46 | |
97aab3a2 GV |
47 | /* For safety, input_available should only be reset by get_next_msg |
48 | when the input queue is empty, so make it a manual reset event. */ | |
49 | keyboard_handle = input_available = CreateEvent (NULL, TRUE, FALSE, NULL); | |
1ce3dc2b RS |
50 | |
51 | /* interrupt_handle is signalled when quit (C-g) is detected, so that | |
52 | blocking system calls can be interrupted. We make it a manual | |
53 | reset event, so that if we should ever have multiple threads | |
54 | performing system calls, they will all be interrupted (I'm guessing | |
55 | that would the right response). Note that we use PulseEvent to | |
56 | signal this event, so that it never remains signalled. */ | |
57 | interrupt_handle = CreateEvent (NULL, TRUE, FALSE, NULL); | |
ee78dc32 GV |
58 | } |
59 | ||
177c0ea7 | 60 | void |
97aab3a2 | 61 | delete_crit () |
ee78dc32 | 62 | { |
97aab3a2 GV |
63 | DeleteCriticalSection (&critsect); |
64 | ||
65 | if (input_available) | |
66 | { | |
67 | CloseHandle (input_available); | |
68 | input_available = NULL; | |
69 | } | |
1ce3dc2b RS |
70 | if (interrupt_handle) |
71 | { | |
72 | CloseHandle (interrupt_handle); | |
73 | interrupt_handle = NULL; | |
74 | } | |
75 | } | |
76 | ||
77 | void | |
78 | signal_quit () | |
79 | { | |
80 | /* Make sure this event never remains signalled; if the main thread | |
81 | isn't in a blocking call, then this should do nothing. */ | |
82 | PulseEvent (interrupt_handle); | |
d484dc55 GV |
83 | } |
84 | ||
97aab3a2 GV |
85 | void |
86 | select_palette (FRAME_PTR f, HDC hdc) | |
d484dc55 | 87 | { |
90f4a9f8 AI |
88 | struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f); |
89 | ||
90 | if (!display_info->has_palette) | |
91 | return; | |
92 | ||
93 | if (display_info->palette == 0) | |
a8370d72 | 94 | return; |
90f4a9f8 | 95 | |
fbd6baed GV |
96 | if (!NILP (Vw32_enable_palette)) |
97 | f->output_data.w32->old_palette = | |
90f4a9f8 | 98 | SelectPalette (hdc, display_info->palette, FALSE); |
97aab3a2 | 99 | else |
fbd6baed | 100 | f->output_data.w32->old_palette = NULL; |
97aab3a2 GV |
101 | |
102 | if (RealizePalette (hdc)) | |
103 | { | |
104 | Lisp_Object frame, framelist; | |
105 | FOR_EACH_FRAME (framelist, frame) | |
dd118a07 | 106 | { |
97aab3a2 | 107 | SET_FRAME_GARBAGED (XFRAME (frame)); |
dd118a07 | 108 | } |
97aab3a2 GV |
109 | } |
110 | } | |
111 | ||
112 | void | |
113 | deselect_palette (FRAME_PTR f, HDC hdc) | |
114 | { | |
fbd6baed GV |
115 | if (f->output_data.w32->old_palette) |
116 | SelectPalette (hdc, f->output_data.w32->old_palette, FALSE); | |
97aab3a2 GV |
117 | } |
118 | ||
119 | /* Get a DC for frame and select palette for drawing; force an update of | |
120 | all frames if palette's mapping changes. */ | |
121 | HDC | |
122 | get_frame_dc (FRAME_PTR f) | |
123 | { | |
124 | HDC hdc; | |
125 | ||
56c16321 AI |
126 | if (f->output_method != output_w32) |
127 | abort (); | |
128 | ||
97aab3a2 GV |
129 | enter_crit (); |
130 | ||
fbd6baed | 131 | hdc = GetDC (f->output_data.w32->window_desc); |
86d1db20 JR |
132 | |
133 | /* If this gets called during startup before the frame is valid, | |
134 | there is a chance of corrupting random data or crashing. */ | |
135 | if (hdc) | |
136 | select_palette (f, hdc); | |
97aab3a2 GV |
137 | |
138 | return hdc; | |
139 | } | |
140 | ||
141 | int | |
142 | release_frame_dc (FRAME_PTR f, HDC hdc) | |
143 | { | |
144 | int ret; | |
145 | ||
146 | deselect_palette (f, hdc); | |
fbd6baed | 147 | ret = ReleaseDC (f->output_data.w32->window_desc, hdc); |
97aab3a2 GV |
148 | |
149 | leave_crit (); | |
150 | ||
151 | return ret; | |
ee78dc32 GV |
152 | } |
153 | ||
154 | typedef struct int_msg | |
155 | { | |
fbd6baed | 156 | W32Msg w32msg; |
ee78dc32 GV |
157 | struct int_msg *lpNext; |
158 | } int_msg; | |
159 | ||
160 | int_msg *lpHead = NULL; | |
161 | int_msg *lpTail = NULL; | |
162 | int nQueue = 0; | |
163 | ||
177c0ea7 | 164 | BOOL |
ee78dc32 | 165 | get_next_msg (lpmsg, bWait) |
fbd6baed | 166 | W32Msg * lpmsg; |
ee78dc32 GV |
167 | BOOL bWait; |
168 | { | |
169 | BOOL bRet = FALSE; | |
177c0ea7 | 170 | |
dd118a07 | 171 | enter_crit (); |
177c0ea7 | 172 | |
ee78dc32 | 173 | /* The while loop takes care of multiple sets */ |
177c0ea7 | 174 | |
ee78dc32 GV |
175 | while (!nQueue && bWait) |
176 | { | |
dd118a07 | 177 | leave_crit (); |
97aab3a2 | 178 | WaitForSingleObject (input_available, INFINITE); |
dd118a07 | 179 | enter_crit (); |
ee78dc32 | 180 | } |
177c0ea7 | 181 | |
ee78dc32 GV |
182 | if (nQueue) |
183 | { | |
fbd6baed | 184 | bcopy (&(lpHead->w32msg), lpmsg, sizeof (W32Msg)); |
ee78dc32 GV |
185 | |
186 | { | |
187 | int_msg * lpCur = lpHead; | |
177c0ea7 | 188 | |
ee78dc32 | 189 | lpHead = lpHead->lpNext; |
177c0ea7 | 190 | |
ee78dc32 GV |
191 | myfree (lpCur); |
192 | } | |
193 | ||
194 | nQueue--; | |
195 | ||
196 | bRet = TRUE; | |
197 | } | |
97aab3a2 GV |
198 | |
199 | if (nQueue == 0) | |
200 | ResetEvent (input_available); | |
177c0ea7 | 201 | |
dd118a07 | 202 | leave_crit (); |
177c0ea7 | 203 | |
ee78dc32 GV |
204 | return (bRet); |
205 | } | |
206 | ||
177c0ea7 | 207 | BOOL |
ee78dc32 | 208 | post_msg (lpmsg) |
fbd6baed | 209 | W32Msg * lpmsg; |
ee78dc32 GV |
210 | { |
211 | int_msg * lpNew = (int_msg *) myalloc (sizeof (int_msg)); | |
212 | ||
97aab3a2 GV |
213 | if (!lpNew) |
214 | return (FALSE); | |
ee78dc32 | 215 | |
fbd6baed | 216 | bcopy (lpmsg, &(lpNew->w32msg), sizeof (W32Msg)); |
ee78dc32 GV |
217 | lpNew->lpNext = NULL; |
218 | ||
dd118a07 | 219 | enter_crit (); |
ee78dc32 GV |
220 | |
221 | if (nQueue++) | |
dd118a07 GV |
222 | { |
223 | lpTail->lpNext = lpNew; | |
224 | } | |
177c0ea7 | 225 | else |
dd118a07 GV |
226 | { |
227 | lpHead = lpNew; | |
dd118a07 | 228 | } |
ee78dc32 GV |
229 | |
230 | lpTail = lpNew; | |
97aab3a2 | 231 | SetEvent (input_available); |
177c0ea7 | 232 | |
dd118a07 | 233 | leave_crit (); |
ee78dc32 GV |
234 | |
235 | return (TRUE); | |
236 | } | |
237 | ||
7c69181b | 238 | BOOL |
fbd6baed | 239 | prepend_msg (W32Msg *lpmsg) |
7c69181b GV |
240 | { |
241 | int_msg * lpNew = (int_msg *) myalloc (sizeof (int_msg)); | |
242 | ||
243 | if (!lpNew) | |
244 | return (FALSE); | |
245 | ||
fbd6baed | 246 | bcopy (lpmsg, &(lpNew->w32msg), sizeof (W32Msg)); |
7c69181b GV |
247 | |
248 | enter_crit (); | |
249 | ||
250 | nQueue++; | |
251 | lpNew->lpNext = lpHead; | |
252 | lpHead = lpNew; | |
253 | ||
254 | leave_crit (); | |
255 | ||
256 | return (TRUE); | |
257 | } | |
258 | ||
716490f0 AI |
259 | /* Process all messages in the current thread's queue. */ |
260 | void | |
261 | drain_message_queue () | |
262 | { | |
263 | MSG msg; | |
264 | while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) | |
265 | { | |
266 | TranslateMessage (&msg); | |
267 | DispatchMessage (&msg); | |
268 | } | |
269 | } | |
270 | ||
271 | ||
ee78dc32 GV |
272 | /* |
273 | * XParseGeometry parses strings of the form | |
274 | * "=<width>x<height>{+-}<xoffset>{+-}<yoffset>", where | |
275 | * width, height, xoffset, and yoffset are unsigned integers. | |
276 | * Example: "=80x24+300-49" | |
277 | * The equal sign is optional. | |
278 | * It returns a bitmask that indicates which of the four values | |
279 | * were actually found in the string. For each value found, | |
280 | * the corresponding argument is updated; for each value | |
177c0ea7 | 281 | * not found, the corresponding argument is left unchanged. |
ee78dc32 GV |
282 | */ |
283 | ||
284 | static int | |
285 | read_integer (string, NextString) | |
286 | register char *string; | |
287 | char **NextString; | |
288 | { | |
289 | register int Result = 0; | |
290 | int Sign = 1; | |
177c0ea7 | 291 | |
ee78dc32 GV |
292 | if (*string == '+') |
293 | string++; | |
294 | else if (*string == '-') | |
295 | { | |
296 | string++; | |
297 | Sign = -1; | |
298 | } | |
299 | for (; (*string >= '0') && (*string <= '9'); string++) | |
300 | { | |
301 | Result = (Result * 10) + (*string - '0'); | |
302 | } | |
303 | *NextString = string; | |
304 | if (Sign >= 0) | |
305 | return (Result); | |
306 | else | |
307 | return (-Result); | |
308 | } | |
309 | ||
177c0ea7 | 310 | int |
ee78dc32 GV |
311 | XParseGeometry (string, x, y, width, height) |
312 | char *string; | |
313 | int *x, *y; | |
314 | unsigned int *width, *height; /* RETURN */ | |
315 | { | |
316 | int mask = NoValue; | |
317 | register char *strind; | |
318 | unsigned int tempWidth, tempHeight; | |
319 | int tempX, tempY; | |
320 | char *nextCharacter; | |
177c0ea7 | 321 | |
ee78dc32 GV |
322 | if ((string == NULL) || (*string == '\0')) return (mask); |
323 | if (*string == '=') | |
324 | string++; /* ignore possible '=' at beg of geometry spec */ | |
177c0ea7 | 325 | |
ee78dc32 | 326 | strind = (char *)string; |
177c0ea7 | 327 | if (*strind != '+' && *strind != '-' && *strind != 'x') |
ee78dc32 GV |
328 | { |
329 | tempWidth = read_integer (strind, &nextCharacter); | |
177c0ea7 | 330 | if (strind == nextCharacter) |
ee78dc32 GV |
331 | return (0); |
332 | strind = nextCharacter; | |
333 | mask |= WidthValue; | |
334 | } | |
177c0ea7 JB |
335 | |
336 | if (*strind == 'x' || *strind == 'X') | |
337 | { | |
ee78dc32 GV |
338 | strind++; |
339 | tempHeight = read_integer (strind, &nextCharacter); | |
340 | if (strind == nextCharacter) | |
341 | return (0); | |
342 | strind = nextCharacter; | |
343 | mask |= HeightValue; | |
344 | } | |
177c0ea7 JB |
345 | |
346 | if ((*strind == '+') || (*strind == '-')) | |
ee78dc32 | 347 | { |
177c0ea7 | 348 | if (*strind == '-') |
ee78dc32 GV |
349 | { |
350 | strind++; | |
351 | tempX = -read_integer (strind, &nextCharacter); | |
352 | if (strind == nextCharacter) | |
353 | return (0); | |
354 | strind = nextCharacter; | |
355 | mask |= XNegative; | |
356 | ||
357 | } | |
358 | else | |
177c0ea7 | 359 | { |
ee78dc32 GV |
360 | strind++; |
361 | tempX = read_integer (strind, &nextCharacter); | |
362 | if (strind == nextCharacter) | |
363 | return (0); | |
364 | strind = nextCharacter; | |
365 | } | |
366 | mask |= XValue; | |
177c0ea7 | 367 | if ((*strind == '+') || (*strind == '-')) |
ee78dc32 | 368 | { |
177c0ea7 | 369 | if (*strind == '-') |
ee78dc32 GV |
370 | { |
371 | strind++; | |
372 | tempY = -read_integer (strind, &nextCharacter); | |
373 | if (strind == nextCharacter) | |
374 | return (0); | |
375 | strind = nextCharacter; | |
376 | mask |= YNegative; | |
377 | ||
378 | } | |
379 | else | |
380 | { | |
381 | strind++; | |
382 | tempY = read_integer (strind, &nextCharacter); | |
383 | if (strind == nextCharacter) | |
384 | return (0); | |
385 | strind = nextCharacter; | |
386 | } | |
387 | mask |= YValue; | |
388 | } | |
389 | } | |
177c0ea7 | 390 | |
ee78dc32 GV |
391 | /* If strind isn't at the end of the string the it's an invalid |
392 | geometry specification. */ | |
177c0ea7 | 393 | |
ee78dc32 | 394 | if (*strind != '\0') return (0); |
177c0ea7 | 395 | |
ee78dc32 GV |
396 | if (mask & XValue) |
397 | *x = tempX; | |
398 | if (mask & YValue) | |
399 | *y = tempY; | |
400 | if (mask & WidthValue) | |
401 | *width = tempWidth; | |
402 | if (mask & HeightValue) | |
403 | *height = tempHeight; | |
404 | return (mask); | |
405 | } | |
406 | ||
fbd6baed | 407 | /* x_sync is a no-op on W32. */ |
ee78dc32 GV |
408 | void |
409 | x_sync (f) | |
410 | void *f; | |
411 | { | |
412 | } | |
ab5796a9 MB |
413 | |
414 | /* arch-tag: 4fab3695-4ad3-4cc6-a2b1-fd2c67dc46be | |
415 | (do not change this comment) */ |