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ee78dc32 GV |
1 | /* Functions taken directly from X sources |
2 | Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation. | |
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 GV |
20 | |
21 | #include <signal.h> | |
22 | #include <config.h> | |
23 | #include <stdio.h> | |
24 | #include "lisp.h" | |
97aab3a2 | 25 | #include "frame.h" |
ee78dc32 GV |
26 | #include "blockinput.h" |
27 | #include "w32term.h" | |
28 | #include "windowsx.h" | |
29 | ||
30 | #define myalloc(cb) GlobalAllocPtr (GPTR, cb) | |
31 | #define myfree(lp) GlobalFreePtr (lp) | |
32 | ||
dd118a07 | 33 | CRITICAL_SECTION critsect; |
ee78dc32 | 34 | extern HANDLE keyboard_handle; |
97aab3a2 | 35 | HANDLE input_available = NULL; |
ee78dc32 GV |
36 | |
37 | void | |
38 | init_crit () | |
39 | { | |
dd118a07 | 40 | InitializeCriticalSection (&critsect); |
ee78dc32 | 41 | |
97aab3a2 GV |
42 | /* For safety, input_available should only be reset by get_next_msg |
43 | when the input queue is empty, so make it a manual reset event. */ | |
44 | keyboard_handle = input_available = CreateEvent (NULL, TRUE, FALSE, NULL); | |
ee78dc32 GV |
45 | } |
46 | ||
dd118a07 | 47 | void |
97aab3a2 | 48 | delete_crit () |
ee78dc32 | 49 | { |
97aab3a2 GV |
50 | DeleteCriticalSection (&critsect); |
51 | ||
52 | if (input_available) | |
53 | { | |
54 | CloseHandle (input_available); | |
55 | input_available = NULL; | |
56 | } | |
d484dc55 GV |
57 | } |
58 | ||
97aab3a2 GV |
59 | void |
60 | select_palette (FRAME_PTR f, HDC hdc) | |
d484dc55 | 61 | { |
97aab3a2 GV |
62 | if (!NILP (Vwin32_enable_palette)) |
63 | f->output_data.win32->old_palette = | |
64 | SelectPalette (hdc, one_win32_display_info.palette, FALSE); | |
65 | else | |
66 | f->output_data.win32->old_palette = NULL; | |
67 | ||
68 | if (RealizePalette (hdc)) | |
69 | { | |
70 | Lisp_Object frame, framelist; | |
71 | FOR_EACH_FRAME (framelist, frame) | |
dd118a07 | 72 | { |
97aab3a2 | 73 | SET_FRAME_GARBAGED (XFRAME (frame)); |
dd118a07 | 74 | } |
97aab3a2 GV |
75 | } |
76 | } | |
77 | ||
78 | void | |
79 | deselect_palette (FRAME_PTR f, HDC hdc) | |
80 | { | |
81 | if (f->output_data.win32->old_palette) | |
82 | SelectPalette (hdc, f->output_data.win32->old_palette, FALSE); | |
83 | } | |
84 | ||
85 | /* Get a DC for frame and select palette for drawing; force an update of | |
86 | all frames if palette's mapping changes. */ | |
87 | HDC | |
88 | get_frame_dc (FRAME_PTR f) | |
89 | { | |
90 | HDC hdc; | |
91 | ||
92 | enter_crit (); | |
93 | ||
94 | hdc = GetDC (f->output_data.win32->window_desc); | |
95 | select_palette (f, hdc); | |
96 | ||
97 | return hdc; | |
98 | } | |
99 | ||
100 | int | |
101 | release_frame_dc (FRAME_PTR f, HDC hdc) | |
102 | { | |
103 | int ret; | |
104 | ||
105 | deselect_palette (f, hdc); | |
106 | ret = ReleaseDC (f->output_data.win32->window_desc, hdc); | |
107 | ||
108 | leave_crit (); | |
109 | ||
110 | return ret; | |
ee78dc32 GV |
111 | } |
112 | ||
113 | typedef struct int_msg | |
114 | { | |
115 | Win32Msg w32msg; | |
116 | struct int_msg *lpNext; | |
117 | } int_msg; | |
118 | ||
119 | int_msg *lpHead = NULL; | |
120 | int_msg *lpTail = NULL; | |
121 | int nQueue = 0; | |
122 | ||
123 | BOOL | |
124 | get_next_msg (lpmsg, bWait) | |
125 | Win32Msg * lpmsg; | |
126 | BOOL bWait; | |
127 | { | |
128 | BOOL bRet = FALSE; | |
129 | ||
dd118a07 | 130 | enter_crit (); |
ee78dc32 GV |
131 | |
132 | /* The while loop takes care of multiple sets */ | |
133 | ||
134 | while (!nQueue && bWait) | |
135 | { | |
dd118a07 | 136 | leave_crit (); |
97aab3a2 | 137 | WaitForSingleObject (input_available, INFINITE); |
dd118a07 | 138 | enter_crit (); |
ee78dc32 GV |
139 | } |
140 | ||
141 | if (nQueue) | |
142 | { | |
143 | bcopy (&(lpHead->w32msg), lpmsg, sizeof (Win32Msg)); | |
144 | ||
145 | { | |
146 | int_msg * lpCur = lpHead; | |
147 | ||
148 | lpHead = lpHead->lpNext; | |
149 | ||
150 | myfree (lpCur); | |
151 | } | |
152 | ||
153 | nQueue--; | |
154 | ||
155 | bRet = TRUE; | |
156 | } | |
97aab3a2 GV |
157 | |
158 | if (nQueue == 0) | |
159 | ResetEvent (input_available); | |
ee78dc32 | 160 | |
dd118a07 | 161 | leave_crit (); |
ee78dc32 GV |
162 | |
163 | return (bRet); | |
164 | } | |
165 | ||
166 | BOOL | |
167 | post_msg (lpmsg) | |
168 | Win32Msg * lpmsg; | |
169 | { | |
170 | int_msg * lpNew = (int_msg *) myalloc (sizeof (int_msg)); | |
171 | ||
97aab3a2 GV |
172 | if (!lpNew) |
173 | return (FALSE); | |
ee78dc32 GV |
174 | |
175 | bcopy (lpmsg, &(lpNew->w32msg), sizeof (Win32Msg)); | |
176 | lpNew->lpNext = NULL; | |
177 | ||
dd118a07 | 178 | enter_crit (); |
ee78dc32 GV |
179 | |
180 | if (nQueue++) | |
dd118a07 GV |
181 | { |
182 | lpTail->lpNext = lpNew; | |
183 | } | |
ee78dc32 | 184 | else |
dd118a07 GV |
185 | { |
186 | lpHead = lpNew; | |
dd118a07 | 187 | } |
ee78dc32 GV |
188 | |
189 | lpTail = lpNew; | |
97aab3a2 | 190 | SetEvent (input_available); |
ee78dc32 | 191 | |
dd118a07 | 192 | leave_crit (); |
ee78dc32 GV |
193 | |
194 | return (TRUE); | |
195 | } | |
196 | ||
7c69181b GV |
197 | BOOL |
198 | prepend_msg (Win32Msg *lpmsg) | |
199 | { | |
200 | int_msg * lpNew = (int_msg *) myalloc (sizeof (int_msg)); | |
201 | ||
202 | if (!lpNew) | |
203 | return (FALSE); | |
204 | ||
205 | bcopy (lpmsg, &(lpNew->w32msg), sizeof (Win32Msg)); | |
206 | ||
207 | enter_crit (); | |
208 | ||
209 | nQueue++; | |
210 | lpNew->lpNext = lpHead; | |
211 | lpHead = lpNew; | |
212 | ||
213 | leave_crit (); | |
214 | ||
215 | return (TRUE); | |
216 | } | |
217 | ||
ee78dc32 GV |
218 | /* |
219 | * XParseGeometry parses strings of the form | |
220 | * "=<width>x<height>{+-}<xoffset>{+-}<yoffset>", where | |
221 | * width, height, xoffset, and yoffset are unsigned integers. | |
222 | * Example: "=80x24+300-49" | |
223 | * The equal sign is optional. | |
224 | * It returns a bitmask that indicates which of the four values | |
225 | * were actually found in the string. For each value found, | |
226 | * the corresponding argument is updated; for each value | |
227 | * not found, the corresponding argument is left unchanged. | |
228 | */ | |
229 | ||
230 | static int | |
231 | read_integer (string, NextString) | |
232 | register char *string; | |
233 | char **NextString; | |
234 | { | |
235 | register int Result = 0; | |
236 | int Sign = 1; | |
237 | ||
238 | if (*string == '+') | |
239 | string++; | |
240 | else if (*string == '-') | |
241 | { | |
242 | string++; | |
243 | Sign = -1; | |
244 | } | |
245 | for (; (*string >= '0') && (*string <= '9'); string++) | |
246 | { | |
247 | Result = (Result * 10) + (*string - '0'); | |
248 | } | |
249 | *NextString = string; | |
250 | if (Sign >= 0) | |
251 | return (Result); | |
252 | else | |
253 | return (-Result); | |
254 | } | |
255 | ||
256 | int | |
257 | XParseGeometry (string, x, y, width, height) | |
258 | char *string; | |
259 | int *x, *y; | |
260 | unsigned int *width, *height; /* RETURN */ | |
261 | { | |
262 | int mask = NoValue; | |
263 | register char *strind; | |
264 | unsigned int tempWidth, tempHeight; | |
265 | int tempX, tempY; | |
266 | char *nextCharacter; | |
267 | ||
268 | if ((string == NULL) || (*string == '\0')) return (mask); | |
269 | if (*string == '=') | |
270 | string++; /* ignore possible '=' at beg of geometry spec */ | |
271 | ||
272 | strind = (char *)string; | |
273 | if (*strind != '+' && *strind != '-' && *strind != 'x') | |
274 | { | |
275 | tempWidth = read_integer (strind, &nextCharacter); | |
276 | if (strind == nextCharacter) | |
277 | return (0); | |
278 | strind = nextCharacter; | |
279 | mask |= WidthValue; | |
280 | } | |
281 | ||
282 | if (*strind == 'x' || *strind == 'X') | |
283 | { | |
284 | strind++; | |
285 | tempHeight = read_integer (strind, &nextCharacter); | |
286 | if (strind == nextCharacter) | |
287 | return (0); | |
288 | strind = nextCharacter; | |
289 | mask |= HeightValue; | |
290 | } | |
291 | ||
292 | if ((*strind == '+') || (*strind == '-')) | |
293 | { | |
294 | if (*strind == '-') | |
295 | { | |
296 | strind++; | |
297 | tempX = -read_integer (strind, &nextCharacter); | |
298 | if (strind == nextCharacter) | |
299 | return (0); | |
300 | strind = nextCharacter; | |
301 | mask |= XNegative; | |
302 | ||
303 | } | |
304 | else | |
305 | { | |
306 | strind++; | |
307 | tempX = read_integer (strind, &nextCharacter); | |
308 | if (strind == nextCharacter) | |
309 | return (0); | |
310 | strind = nextCharacter; | |
311 | } | |
312 | mask |= XValue; | |
313 | if ((*strind == '+') || (*strind == '-')) | |
314 | { | |
315 | if (*strind == '-') | |
316 | { | |
317 | strind++; | |
318 | tempY = -read_integer (strind, &nextCharacter); | |
319 | if (strind == nextCharacter) | |
320 | return (0); | |
321 | strind = nextCharacter; | |
322 | mask |= YNegative; | |
323 | ||
324 | } | |
325 | else | |
326 | { | |
327 | strind++; | |
328 | tempY = read_integer (strind, &nextCharacter); | |
329 | if (strind == nextCharacter) | |
330 | return (0); | |
331 | strind = nextCharacter; | |
332 | } | |
333 | mask |= YValue; | |
334 | } | |
335 | } | |
336 | ||
337 | /* If strind isn't at the end of the string the it's an invalid | |
338 | geometry specification. */ | |
339 | ||
340 | if (*strind != '\0') return (0); | |
341 | ||
342 | if (mask & XValue) | |
343 | *x = tempX; | |
344 | if (mask & YValue) | |
345 | *y = tempY; | |
346 | if (mask & WidthValue) | |
347 | *width = tempWidth; | |
348 | if (mask & HeightValue) | |
349 | *height = tempHeight; | |
350 | return (mask); | |
351 | } | |
352 | ||
142aad74 | 353 | /* We can use mouse menus when we wish. */ |
ee78dc32 | 354 | int |
142aad74 | 355 | have_menus_p (void) |
ee78dc32 GV |
356 | { |
357 | return 1; | |
358 | } | |
359 | ||
360 | /* x_sync is a no-op on Win32. */ | |
361 | void | |
362 | x_sync (f) | |
363 | void *f; | |
364 | { | |
365 | } | |
366 |