Commit | Line | Data |
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e9e23e23 | 1 | /* Functions taken directly from X sources for use with the Microsoft W32 API. |
68c45bf0 | 2 | Copyright (C) 1989, 1992, 1993, 1994, 1995, 1999 Free Software Foundation. |
ee78dc32 GV |
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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
ee78dc32 | 20 | |
ee78dc32 | 21 | #include <config.h> |
68c45bf0 | 22 | #include <signal.h> |
ee78dc32 GV |
23 | #include <stdio.h> |
24 | #include "lisp.h" | |
3e4731a3 | 25 | #include "keyboard.h" |
97aab3a2 | 26 | #include "frame.h" |
bd6bb544 GV |
27 | #include "charset.h" |
28 | #include "fontset.h" | |
ee78dc32 GV |
29 | #include "blockinput.h" |
30 | #include "w32term.h" | |
31 | #include "windowsx.h" | |
32 | ||
33 | #define myalloc(cb) GlobalAllocPtr (GPTR, cb) | |
34 | #define myfree(lp) GlobalFreePtr (lp) | |
35 | ||
dd118a07 | 36 | CRITICAL_SECTION critsect; |
ee78dc32 | 37 | extern HANDLE keyboard_handle; |
97aab3a2 | 38 | HANDLE input_available = NULL; |
1ce3dc2b | 39 | HANDLE interrupt_handle = NULL; |
ee78dc32 GV |
40 | |
41 | void | |
42 | init_crit () | |
43 | { | |
dd118a07 | 44 | InitializeCriticalSection (&critsect); |
ee78dc32 | 45 | |
97aab3a2 GV |
46 | /* For safety, input_available should only be reset by get_next_msg |
47 | when the input queue is empty, so make it a manual reset event. */ | |
48 | keyboard_handle = input_available = CreateEvent (NULL, TRUE, FALSE, NULL); | |
1ce3dc2b RS |
49 | |
50 | /* interrupt_handle is signalled when quit (C-g) is detected, so that | |
51 | blocking system calls can be interrupted. We make it a manual | |
52 | reset event, so that if we should ever have multiple threads | |
53 | performing system calls, they will all be interrupted (I'm guessing | |
54 | that would the right response). Note that we use PulseEvent to | |
55 | signal this event, so that it never remains signalled. */ | |
56 | interrupt_handle = CreateEvent (NULL, TRUE, FALSE, NULL); | |
ee78dc32 GV |
57 | } |
58 | ||
dd118a07 | 59 | void |
97aab3a2 | 60 | delete_crit () |
ee78dc32 | 61 | { |
97aab3a2 GV |
62 | DeleteCriticalSection (&critsect); |
63 | ||
64 | if (input_available) | |
65 | { | |
66 | CloseHandle (input_available); | |
67 | input_available = NULL; | |
68 | } | |
1ce3dc2b RS |
69 | if (interrupt_handle) |
70 | { | |
71 | CloseHandle (interrupt_handle); | |
72 | interrupt_handle = NULL; | |
73 | } | |
74 | } | |
75 | ||
76 | void | |
77 | signal_quit () | |
78 | { | |
79 | /* Make sure this event never remains signalled; if the main thread | |
80 | isn't in a blocking call, then this should do nothing. */ | |
81 | PulseEvent (interrupt_handle); | |
d484dc55 GV |
82 | } |
83 | ||
97aab3a2 GV |
84 | void |
85 | select_palette (FRAME_PTR f, HDC hdc) | |
d484dc55 | 86 | { |
fbd6baed GV |
87 | if (!NILP (Vw32_enable_palette)) |
88 | f->output_data.w32->old_palette = | |
89 | SelectPalette (hdc, one_w32_display_info.palette, FALSE); | |
97aab3a2 | 90 | else |
fbd6baed | 91 | f->output_data.w32->old_palette = NULL; |
97aab3a2 GV |
92 | |
93 | if (RealizePalette (hdc)) | |
94 | { | |
95 | Lisp_Object frame, framelist; | |
96 | FOR_EACH_FRAME (framelist, frame) | |
dd118a07 | 97 | { |
97aab3a2 | 98 | SET_FRAME_GARBAGED (XFRAME (frame)); |
dd118a07 | 99 | } |
97aab3a2 GV |
100 | } |
101 | } | |
102 | ||
103 | void | |
104 | deselect_palette (FRAME_PTR f, HDC hdc) | |
105 | { | |
fbd6baed GV |
106 | if (f->output_data.w32->old_palette) |
107 | SelectPalette (hdc, f->output_data.w32->old_palette, FALSE); | |
97aab3a2 GV |
108 | } |
109 | ||
110 | /* Get a DC for frame and select palette for drawing; force an update of | |
111 | all frames if palette's mapping changes. */ | |
112 | HDC | |
113 | get_frame_dc (FRAME_PTR f) | |
114 | { | |
115 | HDC hdc; | |
116 | ||
117 | enter_crit (); | |
118 | ||
fbd6baed | 119 | hdc = GetDC (f->output_data.w32->window_desc); |
97aab3a2 GV |
120 | select_palette (f, hdc); |
121 | ||
122 | return hdc; | |
123 | } | |
124 | ||
125 | int | |
126 | release_frame_dc (FRAME_PTR f, HDC hdc) | |
127 | { | |
128 | int ret; | |
129 | ||
130 | deselect_palette (f, hdc); | |
fbd6baed | 131 | ret = ReleaseDC (f->output_data.w32->window_desc, hdc); |
97aab3a2 GV |
132 | |
133 | leave_crit (); | |
134 | ||
135 | return ret; | |
ee78dc32 GV |
136 | } |
137 | ||
138 | typedef struct int_msg | |
139 | { | |
fbd6baed | 140 | W32Msg w32msg; |
ee78dc32 GV |
141 | struct int_msg *lpNext; |
142 | } int_msg; | |
143 | ||
144 | int_msg *lpHead = NULL; | |
145 | int_msg *lpTail = NULL; | |
146 | int nQueue = 0; | |
147 | ||
148 | BOOL | |
149 | get_next_msg (lpmsg, bWait) | |
fbd6baed | 150 | W32Msg * lpmsg; |
ee78dc32 GV |
151 | BOOL bWait; |
152 | { | |
153 | BOOL bRet = FALSE; | |
154 | ||
dd118a07 | 155 | enter_crit (); |
ee78dc32 GV |
156 | |
157 | /* The while loop takes care of multiple sets */ | |
158 | ||
159 | while (!nQueue && bWait) | |
160 | { | |
dd118a07 | 161 | leave_crit (); |
97aab3a2 | 162 | WaitForSingleObject (input_available, INFINITE); |
dd118a07 | 163 | enter_crit (); |
ee78dc32 GV |
164 | } |
165 | ||
166 | if (nQueue) | |
167 | { | |
fbd6baed | 168 | bcopy (&(lpHead->w32msg), lpmsg, sizeof (W32Msg)); |
ee78dc32 GV |
169 | |
170 | { | |
171 | int_msg * lpCur = lpHead; | |
172 | ||
173 | lpHead = lpHead->lpNext; | |
174 | ||
175 | myfree (lpCur); | |
176 | } | |
177 | ||
178 | nQueue--; | |
179 | ||
180 | bRet = TRUE; | |
181 | } | |
97aab3a2 GV |
182 | |
183 | if (nQueue == 0) | |
184 | ResetEvent (input_available); | |
ee78dc32 | 185 | |
dd118a07 | 186 | leave_crit (); |
ee78dc32 GV |
187 | |
188 | return (bRet); | |
189 | } | |
190 | ||
191 | BOOL | |
192 | post_msg (lpmsg) | |
fbd6baed | 193 | W32Msg * lpmsg; |
ee78dc32 GV |
194 | { |
195 | int_msg * lpNew = (int_msg *) myalloc (sizeof (int_msg)); | |
196 | ||
97aab3a2 GV |
197 | if (!lpNew) |
198 | return (FALSE); | |
ee78dc32 | 199 | |
fbd6baed | 200 | bcopy (lpmsg, &(lpNew->w32msg), sizeof (W32Msg)); |
ee78dc32 GV |
201 | lpNew->lpNext = NULL; |
202 | ||
dd118a07 | 203 | enter_crit (); |
ee78dc32 GV |
204 | |
205 | if (nQueue++) | |
dd118a07 GV |
206 | { |
207 | lpTail->lpNext = lpNew; | |
208 | } | |
ee78dc32 | 209 | else |
dd118a07 GV |
210 | { |
211 | lpHead = lpNew; | |
dd118a07 | 212 | } |
ee78dc32 GV |
213 | |
214 | lpTail = lpNew; | |
97aab3a2 | 215 | SetEvent (input_available); |
ee78dc32 | 216 | |
dd118a07 | 217 | leave_crit (); |
ee78dc32 GV |
218 | |
219 | return (TRUE); | |
220 | } | |
221 | ||
7c69181b | 222 | BOOL |
fbd6baed | 223 | prepend_msg (W32Msg *lpmsg) |
7c69181b GV |
224 | { |
225 | int_msg * lpNew = (int_msg *) myalloc (sizeof (int_msg)); | |
226 | ||
227 | if (!lpNew) | |
228 | return (FALSE); | |
229 | ||
fbd6baed | 230 | bcopy (lpmsg, &(lpNew->w32msg), sizeof (W32Msg)); |
7c69181b GV |
231 | |
232 | enter_crit (); | |
233 | ||
234 | nQueue++; | |
235 | lpNew->lpNext = lpHead; | |
236 | lpHead = lpNew; | |
237 | ||
238 | leave_crit (); | |
239 | ||
240 | return (TRUE); | |
241 | } | |
242 | ||
716490f0 AI |
243 | /* Process all messages in the current thread's queue. */ |
244 | void | |
245 | drain_message_queue () | |
246 | { | |
247 | MSG msg; | |
248 | while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) | |
249 | { | |
250 | TranslateMessage (&msg); | |
251 | DispatchMessage (&msg); | |
252 | } | |
253 | } | |
254 | ||
255 | ||
ee78dc32 GV |
256 | /* |
257 | * XParseGeometry parses strings of the form | |
258 | * "=<width>x<height>{+-}<xoffset>{+-}<yoffset>", where | |
259 | * width, height, xoffset, and yoffset are unsigned integers. | |
260 | * Example: "=80x24+300-49" | |
261 | * The equal sign is optional. | |
262 | * It returns a bitmask that indicates which of the four values | |
263 | * were actually found in the string. For each value found, | |
264 | * the corresponding argument is updated; for each value | |
265 | * not found, the corresponding argument is left unchanged. | |
266 | */ | |
267 | ||
268 | static int | |
269 | read_integer (string, NextString) | |
270 | register char *string; | |
271 | char **NextString; | |
272 | { | |
273 | register int Result = 0; | |
274 | int Sign = 1; | |
275 | ||
276 | if (*string == '+') | |
277 | string++; | |
278 | else if (*string == '-') | |
279 | { | |
280 | string++; | |
281 | Sign = -1; | |
282 | } | |
283 | for (; (*string >= '0') && (*string <= '9'); string++) | |
284 | { | |
285 | Result = (Result * 10) + (*string - '0'); | |
286 | } | |
287 | *NextString = string; | |
288 | if (Sign >= 0) | |
289 | return (Result); | |
290 | else | |
291 | return (-Result); | |
292 | } | |
293 | ||
294 | int | |
295 | XParseGeometry (string, x, y, width, height) | |
296 | char *string; | |
297 | int *x, *y; | |
298 | unsigned int *width, *height; /* RETURN */ | |
299 | { | |
300 | int mask = NoValue; | |
301 | register char *strind; | |
302 | unsigned int tempWidth, tempHeight; | |
303 | int tempX, tempY; | |
304 | char *nextCharacter; | |
305 | ||
306 | if ((string == NULL) || (*string == '\0')) return (mask); | |
307 | if (*string == '=') | |
308 | string++; /* ignore possible '=' at beg of geometry spec */ | |
309 | ||
310 | strind = (char *)string; | |
311 | if (*strind != '+' && *strind != '-' && *strind != 'x') | |
312 | { | |
313 | tempWidth = read_integer (strind, &nextCharacter); | |
314 | if (strind == nextCharacter) | |
315 | return (0); | |
316 | strind = nextCharacter; | |
317 | mask |= WidthValue; | |
318 | } | |
319 | ||
320 | if (*strind == 'x' || *strind == 'X') | |
321 | { | |
322 | strind++; | |
323 | tempHeight = read_integer (strind, &nextCharacter); | |
324 | if (strind == nextCharacter) | |
325 | return (0); | |
326 | strind = nextCharacter; | |
327 | mask |= HeightValue; | |
328 | } | |
329 | ||
330 | if ((*strind == '+') || (*strind == '-')) | |
331 | { | |
332 | if (*strind == '-') | |
333 | { | |
334 | strind++; | |
335 | tempX = -read_integer (strind, &nextCharacter); | |
336 | if (strind == nextCharacter) | |
337 | return (0); | |
338 | strind = nextCharacter; | |
339 | mask |= XNegative; | |
340 | ||
341 | } | |
342 | else | |
343 | { | |
344 | strind++; | |
345 | tempX = read_integer (strind, &nextCharacter); | |
346 | if (strind == nextCharacter) | |
347 | return (0); | |
348 | strind = nextCharacter; | |
349 | } | |
350 | mask |= XValue; | |
351 | if ((*strind == '+') || (*strind == '-')) | |
352 | { | |
353 | if (*strind == '-') | |
354 | { | |
355 | strind++; | |
356 | tempY = -read_integer (strind, &nextCharacter); | |
357 | if (strind == nextCharacter) | |
358 | return (0); | |
359 | strind = nextCharacter; | |
360 | mask |= YNegative; | |
361 | ||
362 | } | |
363 | else | |
364 | { | |
365 | strind++; | |
366 | tempY = read_integer (strind, &nextCharacter); | |
367 | if (strind == nextCharacter) | |
368 | return (0); | |
369 | strind = nextCharacter; | |
370 | } | |
371 | mask |= YValue; | |
372 | } | |
373 | } | |
374 | ||
375 | /* If strind isn't at the end of the string the it's an invalid | |
376 | geometry specification. */ | |
377 | ||
378 | if (*strind != '\0') return (0); | |
379 | ||
380 | if (mask & XValue) | |
381 | *x = tempX; | |
382 | if (mask & YValue) | |
383 | *y = tempY; | |
384 | if (mask & WidthValue) | |
385 | *width = tempWidth; | |
386 | if (mask & HeightValue) | |
387 | *height = tempHeight; | |
388 | return (mask); | |
389 | } | |
390 | ||
fbd6baed | 391 | /* x_sync is a no-op on W32. */ |
ee78dc32 GV |
392 | void |
393 | x_sync (f) | |
394 | void *f; | |
395 | { | |
396 | } |