e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | This library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | /* Handle the event stream, converting X11 events into SDL events */ |
25 | |
26 | #include <setjmp.h> |
27 | #include <X11/Xlib.h> |
28 | #include <X11/Xutil.h> |
29 | #include <X11/keysym.h> |
30 | #ifdef __SVR4 |
31 | #include <X11/Sunkeysym.h> |
32 | #endif |
33 | #include <sys/types.h> |
34 | #include <sys/time.h> |
35 | #include <unistd.h> |
36 | |
37 | #include "SDL_timer.h" |
38 | #include "SDL_syswm.h" |
39 | #include "../SDL_sysvideo.h" |
40 | #include "../../events/SDL_sysevents.h" |
41 | #include "../../events/SDL_events_c.h" |
42 | #include "SDL_x11video.h" |
43 | #include "SDL_x11dga_c.h" |
44 | #include "SDL_x11modes_c.h" |
45 | #include "SDL_x11image_c.h" |
46 | #include "SDL_x11gamma_c.h" |
47 | #include "SDL_x11wm_c.h" |
48 | #include "SDL_x11mouse_c.h" |
49 | #include "SDL_x11events_c.h" |
50 | |
51 | |
52 | /* Define this if you want to debug X11 events */ |
53 | /*#define DEBUG_XEVENTS*/ |
54 | |
55 | /* The translation tables from an X11 keysym to a SDL keysym */ |
56 | static SDLKey ODD_keymap[256]; |
57 | static SDLKey MISC_keymap[256]; |
58 | SDLKey X11_TranslateKeycode(Display *display, KeyCode kc); |
59 | |
60 | |
61 | #ifdef X_HAVE_UTF8_STRING |
62 | Uint32 Utf8ToUcs4(const Uint8 *utf8) |
63 | { |
64 | Uint32 c; |
65 | int i = 1; |
66 | int noOctets = 0; |
67 | int firstOctetMask = 0; |
68 | unsigned char firstOctet = utf8[0]; |
69 | if (firstOctet < 0x80) { |
70 | /* |
71 | Characters in the range: |
72 | 00000000 to 01111111 (ASCII Range) |
73 | are stored in one octet: |
74 | 0xxxxxxx (The same as its ASCII representation) |
75 | The least 6 significant bits of the first octet is the most 6 significant nonzero bits |
76 | of the UCS4 representation. |
77 | */ |
78 | noOctets = 1; |
79 | firstOctetMask = 0x7F; /* 0(1111111) - The most significant bit is ignored */ |
80 | } else if ((firstOctet & 0xE0) /* get the most 3 significant bits by AND'ing with 11100000 */ |
81 | == 0xC0 ) { /* see if those 3 bits are 110. If so, the char is in this range */ |
82 | /* |
83 | Characters in the range: |
84 | 00000000 10000000 to 00000111 11111111 |
85 | are stored in two octets: |
86 | 110xxxxx 10xxxxxx |
87 | The least 5 significant bits of the first octet is the most 5 significant nonzero bits |
88 | of the UCS4 representation. |
89 | */ |
90 | noOctets = 2; |
91 | firstOctetMask = 0x1F; /* 000(11111) - The most 3 significant bits are ignored */ |
92 | } else if ((firstOctet & 0xF0) /* get the most 4 significant bits by AND'ing with 11110000 */ |
93 | == 0xE0) { /* see if those 4 bits are 1110. If so, the char is in this range */ |
94 | /* |
95 | Characters in the range: |
96 | 00001000 00000000 to 11111111 11111111 |
97 | are stored in three octets: |
98 | 1110xxxx 10xxxxxx 10xxxxxx |
99 | The least 4 significant bits of the first octet is the most 4 significant nonzero bits |
100 | of the UCS4 representation. |
101 | */ |
102 | noOctets = 3; |
103 | firstOctetMask = 0x0F; /* 0000(1111) - The most 4 significant bits are ignored */ |
104 | } else if ((firstOctet & 0xF8) /* get the most 5 significant bits by AND'ing with 11111000 */ |
105 | == 0xF0) { /* see if those 5 bits are 11110. If so, the char is in this range */ |
106 | /* |
107 | Characters in the range: |
108 | 00000001 00000000 00000000 to 00011111 11111111 11111111 |
109 | are stored in four octets: |
110 | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx |
111 | The least 3 significant bits of the first octet is the most 3 significant nonzero bits |
112 | of the UCS4 representation. |
113 | */ |
114 | noOctets = 4; |
115 | firstOctetMask = 0x07; /* 11110(111) - The most 5 significant bits are ignored */ |
116 | } else if ((firstOctet & 0xFC) /* get the most 6 significant bits by AND'ing with 11111100 */ |
117 | == 0xF8) { /* see if those 6 bits are 111110. If so, the char is in this range */ |
118 | /* |
119 | Characters in the range: |
120 | 00000000 00100000 00000000 00000000 to |
121 | 00000011 11111111 11111111 11111111 |
122 | are stored in five octets: |
123 | 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx |
124 | The least 2 significant bits of the first octet is the most 2 significant nonzero bits |
125 | of the UCS4 representation. |
126 | */ |
127 | noOctets = 5; |
128 | firstOctetMask = 0x03; /* 111110(11) - The most 6 significant bits are ignored */ |
129 | } else if ((firstOctet & 0xFE) /* get the most 7 significant bits by AND'ing with 11111110 */ |
130 | == 0xFC) { /* see if those 7 bits are 1111110. If so, the char is in this range */ |
131 | /* |
132 | Characters in the range: |
133 | 00000100 00000000 00000000 00000000 to |
134 | 01111111 11111111 11111111 11111111 |
135 | are stored in six octets: |
136 | 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx |
137 | The least significant bit of the first octet is the most significant nonzero bit |
138 | of the UCS4 representation. |
139 | */ |
140 | noOctets = 6; |
141 | firstOctetMask = 0x01; /* 1111110(1) - The most 7 significant bits are ignored */ |
142 | } else |
143 | return 0; /* The given chunk is not a valid UTF-8 encoded Unicode character */ |
144 | |
145 | /* |
146 | The least noOctets significant bits of the first octet is the most 2 significant nonzero bits |
147 | of the UCS4 representation. |
148 | The first 6 bits of the UCS4 representation is the least 8-noOctets-1 significant bits of |
149 | firstOctet if the character is not ASCII. If so, it's the least 7 significant bits of firstOctet. |
150 | This done by AND'ing firstOctet with its mask to trim the bits used for identifying the |
151 | number of continuing octets (if any) and leave only the free bits (the x's) |
152 | Sample: |
153 | 1-octet: 0xxxxxxx & 01111111 = 0xxxxxxx |
154 | 2-octets: 110xxxxx & 00011111 = 000xxxxx |
155 | */ |
156 | c = firstOctet & firstOctetMask; |
157 | |
158 | /* Now, start filling c.ucs4 with the bits from the continuing octets from utf8. */ |
159 | for (i = 1; i < noOctets; i++) { |
160 | /* A valid continuing octet is of the form 10xxxxxx */ |
161 | if ((utf8[i] & 0xC0) /* get the most 2 significant bits by AND'ing with 11000000 */ |
162 | != 0x80) /* see if those 2 bits are 10. If not, the is a malformed sequence. */ |
163 | /*The given chunk is a partial sequence at the end of a string that could |
164 | begin a valid character */ |
165 | return 0; |
166 | |
167 | /* Make room for the next 6-bits */ |
168 | c <<= 6; |
169 | |
170 | /* |
171 | Take only the least 6 significance bits of the current octet (utf8[i]) and fill the created room |
172 | of c.ucs4 with them. |
173 | This done by AND'ing utf8[i] with 00111111 and the OR'ing the result with c.ucs4. |
174 | */ |
175 | c |= utf8[i] & 0x3F; |
176 | } |
177 | return c; |
178 | } |
179 | |
180 | /* Given a UTF-8 encoded string pointed to by utf8 of length length in |
181 | bytes, returns the corresponding UTF-16 encoded string in the |
182 | buffer pointed to by utf16. The maximum number of UTF-16 encoding |
183 | units (i.e., Unit16s) allowed in the buffer is specified in |
184 | utf16_max_length. The return value is the number of UTF-16 |
185 | encoding units placed in the output buffer pointed to by utf16. |
186 | |
187 | In case of an error, -1 is returned, leaving some unusable partial |
188 | results in the output buffer. |
189 | |
190 | The caller must estimate the size of utf16 buffer by itself before |
191 | calling this function. Insufficient output buffer is considered as |
192 | an error, and once an error occured, this function doesn't give any |
193 | clue how large the result will be. |
194 | |
195 | The error cases include following: |
196 | |
197 | - Invalid byte sequences were in the input UTF-8 bytes. The caller |
198 | has no way to know what point in the input buffer was the |
199 | errornous byte. |
200 | |
201 | - The input contained a character (a valid UTF-8 byte sequence) |
202 | whose scalar value exceeded the range that UTF-16 can represent |
203 | (i.e., characters whose Unicode scalar value above 0x110000). |
204 | |
205 | - The output buffer has no enough space to hold entire utf16 data. |
206 | |
207 | Please note: |
208 | |
209 | - '\0'-termination is not assumed both on the input UTF-8 string |
210 | and on the output UTF-16 string; any legal zero byte in the input |
211 | UTF-8 string will be converted to a 16-bit zero in output. As a |
212 | side effect, the last UTF-16 encoding unit stored in the output |
213 | buffer will have a non-zero value if the input UTF-8 was not |
214 | '\0'-terminated. |
215 | |
216 | - UTF-8 aliases are *not* considered as an error. They are |
217 | converted to UTF-16. For example, 0xC0 0xA0, 0xE0 0x80 0xA0, |
218 | and 0xF0 0x80 0x80 0xA0 are all mapped to a single UTF-16 |
219 | encoding unit 0x0020. |
220 | |
221 | - Three byte UTF-8 sequences whose value corresponds to a surrogate |
222 | code or other reserved scalar value are not considered as an |
223 | error either. They may cause an invalid UTF-16 data (e.g., those |
224 | containing unpaired surrogates). |
225 | |
226 | */ |
227 | |
228 | static int Utf8ToUtf16(const Uint8 *utf8, const int utf8_length, Uint16 *utf16, const int utf16_max_length) { |
229 | |
230 | /* p moves over the output buffer. max_ptr points to the next to the last slot of the buffer. */ |
231 | Uint16 *p = utf16; |
232 | Uint16 const *const max_ptr = utf16 + utf16_max_length; |
233 | |
234 | /* end_of_input points to the last byte of input as opposed to the next to the last byte. */ |
235 | Uint8 const *const end_of_input = utf8 + utf8_length - 1; |
236 | |
237 | while (utf8 <= end_of_input) { |
238 | Uint8 const c = *utf8; |
239 | if (p >= max_ptr) { |
240 | /* No more output space. */ |
241 | return -1; |
242 | } |
243 | if (c < 0x80) { |
244 | /* One byte ASCII. */ |
245 | *p++ = c; |
246 | utf8 += 1; |
247 | } else if (c < 0xC0) { |
248 | /* Follower byte without preceeding leader bytes. */ |
249 | return -1; |
250 | } else if (c < 0xE0) { |
251 | /* Two byte sequence. We need one follower byte. */ |
252 | if (end_of_input - utf8 < 1 || (((utf8[1] ^ 0x80)) & 0xC0)) { |
253 | return -1; |
254 | } |
255 | *p++ = (Uint16)(0xCF80 + (c << 6) + utf8[1]); |
256 | utf8 += 2; |
257 | } else if (c < 0xF0) { |
258 | /* Three byte sequence. We need two follower byte. */ |
259 | if (end_of_input - utf8 < 2 || (((utf8[1] ^ 0x80) | (utf8[2] ^ 0x80)) & 0xC0)) { |
260 | return -1; |
261 | } |
262 | *p++ = (Uint16)(0xDF80 + (c << 12) + (utf8[1] << 6) + utf8[2]); |
263 | utf8 += 3; |
264 | } else if (c < 0xF8) { |
265 | int plane; |
266 | /* Four byte sequence. We need three follower bytes. */ |
267 | if (end_of_input - utf8 < 3 || (((utf8[1] ^ 0x80) | (utf8[2] ^0x80) | (utf8[3] ^ 0x80)) & 0xC0)) { |
268 | return -1; |
269 | } |
270 | plane = (-0xC8 + (c << 2) + (utf8[1] >> 4)); |
271 | if (plane == 0) { |
272 | /* This four byte sequence is an alias that |
273 | corresponds to a Unicode scalar value in BMP. |
274 | It fits in an UTF-16 encoding unit. */ |
275 | *p++ = (Uint16)(0xDF80 + (utf8[1] << 12) + (utf8[2] << 6) + utf8[3]); |
276 | } else if (plane <= 16) { |
277 | /* This is a legal four byte sequence that corresponds to a surrogate pair. */ |
278 | if (p + 1 >= max_ptr) { |
279 | /* No enough space on the output buffer for the pair. */ |
280 | return -1; |
281 | } |
282 | *p++ = (Uint16)(0xE5B8 + (c << 8) + (utf8[1] << 2) + (utf8[2] >> 4)); |
283 | *p++ = (Uint16)(0xDB80 + ((utf8[2] & 0x0F) << 6) + utf8[3]); |
284 | } else { |
285 | /* This four byte sequence is out of UTF-16 code space. */ |
286 | return -1; |
287 | } |
288 | utf8 += 4; |
289 | } else { |
290 | /* Longer sequence or unused byte. */ |
291 | return -1; |
292 | } |
293 | } |
294 | return p - utf16; |
295 | } |
296 | |
297 | #endif |
298 | |
299 | /* Check to see if this is a repeated key. |
300 | (idea shamelessly lifted from GII -- thanks guys! :) |
301 | */ |
302 | static int X11_KeyRepeat(Display *display, XEvent *event) |
303 | { |
304 | XEvent peekevent; |
305 | int repeated; |
306 | |
307 | repeated = 0; |
308 | if ( XPending(display) ) { |
309 | XPeekEvent(display, &peekevent); |
310 | if ( (peekevent.type == KeyPress) && |
311 | (peekevent.xkey.keycode == event->xkey.keycode) && |
312 | ((peekevent.xkey.time-event->xkey.time) < 2) ) { |
313 | repeated = 1; |
314 | XNextEvent(display, &peekevent); |
315 | } |
316 | } |
317 | return(repeated); |
318 | } |
319 | |
320 | /* Note: The X server buffers and accumulates mouse motion events, so |
321 | the motion event generated by the warp may not appear exactly as we |
322 | expect it to. We work around this (and improve performance) by only |
323 | warping the pointer when it reaches the edge, and then wait for it. |
324 | */ |
325 | #define MOUSE_FUDGE_FACTOR 8 |
326 | |
327 | static __inline__ int X11_WarpedMotion(_THIS, XEvent *xevent) |
328 | { |
329 | int w, h, i; |
330 | int deltax, deltay; |
331 | int posted; |
332 | |
333 | w = SDL_VideoSurface->w; |
334 | h = SDL_VideoSurface->h; |
335 | deltax = xevent->xmotion.x - mouse_last.x; |
336 | deltay = xevent->xmotion.y - mouse_last.y; |
337 | #ifdef DEBUG_MOTION |
338 | printf("Warped mouse motion: %d,%d\n", deltax, deltay); |
339 | #endif |
340 | mouse_last.x = xevent->xmotion.x; |
341 | mouse_last.y = xevent->xmotion.y; |
342 | posted = SDL_PrivateMouseMotion(0, 1, deltax, deltay); |
343 | |
344 | if ( (xevent->xmotion.x < MOUSE_FUDGE_FACTOR) || |
345 | (xevent->xmotion.x > (w-MOUSE_FUDGE_FACTOR)) || |
346 | (xevent->xmotion.y < MOUSE_FUDGE_FACTOR) || |
347 | (xevent->xmotion.y > (h-MOUSE_FUDGE_FACTOR)) ) { |
348 | /* Get the events that have accumulated */ |
349 | while ( XCheckTypedEvent(SDL_Display, MotionNotify, xevent) ) { |
350 | deltax = xevent->xmotion.x - mouse_last.x; |
351 | deltay = xevent->xmotion.y - mouse_last.y; |
352 | #ifdef DEBUG_MOTION |
353 | printf("Extra mouse motion: %d,%d\n", deltax, deltay); |
354 | #endif |
355 | mouse_last.x = xevent->xmotion.x; |
356 | mouse_last.y = xevent->xmotion.y; |
357 | posted += SDL_PrivateMouseMotion(0, 1, deltax, deltay); |
358 | } |
359 | mouse_last.x = w/2; |
360 | mouse_last.y = h/2; |
361 | XWarpPointer(SDL_Display, None, SDL_Window, 0, 0, 0, 0, |
362 | mouse_last.x, mouse_last.y); |
363 | for ( i=0; i<10; ++i ) { |
364 | XMaskEvent(SDL_Display, PointerMotionMask, xevent); |
365 | if ( (xevent->xmotion.x > |
366 | (mouse_last.x-MOUSE_FUDGE_FACTOR)) && |
367 | (xevent->xmotion.x < |
368 | (mouse_last.x+MOUSE_FUDGE_FACTOR)) && |
369 | (xevent->xmotion.y > |
370 | (mouse_last.y-MOUSE_FUDGE_FACTOR)) && |
371 | (xevent->xmotion.y < |
372 | (mouse_last.y+MOUSE_FUDGE_FACTOR)) ) { |
373 | break; |
374 | } |
375 | #ifdef DEBUG_XEVENTS |
376 | printf("Lost mouse motion: %d,%d\n", xevent->xmotion.x, xevent->xmotion.y); |
377 | #endif |
378 | } |
379 | #ifdef DEBUG_XEVENTS |
380 | if ( i == 10 ) { |
381 | printf("Warning: didn't detect mouse warp motion\n"); |
382 | } |
383 | #endif |
384 | } |
385 | return(posted); |
386 | } |
387 | |
388 | static int X11_DispatchEvent(_THIS) |
389 | { |
390 | int posted; |
391 | XEvent xevent; |
392 | |
393 | SDL_memset(&xevent, '\0', sizeof (XEvent)); /* valgrind fix. --ryan. */ |
394 | XNextEvent(SDL_Display, &xevent); |
395 | |
396 | /* Discard KeyRelease and KeyPress events generated by auto-repeat. |
397 | We need to do it before passing event to XFilterEvent. Otherwise, |
398 | KeyRelease aware IMs are confused... */ |
399 | if ( xevent.type == KeyRelease |
400 | && X11_KeyRepeat(SDL_Display, &xevent) ) { |
401 | return 0; |
402 | } |
403 | |
404 | #ifdef X_HAVE_UTF8_STRING |
405 | /* If we are translating with IM, we need to pass all events |
406 | to XFilterEvent, and discard those filtered events immediately. */ |
407 | if ( SDL_TranslateUNICODE |
408 | && SDL_IM != NULL |
409 | && XFilterEvent(&xevent, None) ) { |
410 | return 0; |
411 | } |
412 | #endif |
413 | |
414 | posted = 0; |
415 | switch (xevent.type) { |
416 | |
417 | /* Gaining mouse coverage? */ |
418 | case EnterNotify: { |
419 | #ifdef DEBUG_XEVENTS |
420 | printf("EnterNotify! (%d,%d)\n", xevent.xcrossing.x, xevent.xcrossing.y); |
421 | if ( xevent.xcrossing.mode == NotifyGrab ) |
422 | printf("Mode: NotifyGrab\n"); |
423 | if ( xevent.xcrossing.mode == NotifyUngrab ) |
424 | printf("Mode: NotifyUngrab\n"); |
425 | #endif |
426 | if ( this->input_grab == SDL_GRAB_OFF ) { |
427 | posted = SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); |
428 | } |
429 | posted = SDL_PrivateMouseMotion(0, 0, |
430 | xevent.xcrossing.x, |
431 | xevent.xcrossing.y); |
432 | } |
433 | break; |
434 | |
435 | /* Losing mouse coverage? */ |
436 | case LeaveNotify: { |
437 | #ifdef DEBUG_XEVENTS |
438 | printf("LeaveNotify! (%d,%d)\n", xevent.xcrossing.x, xevent.xcrossing.y); |
439 | if ( xevent.xcrossing.mode == NotifyGrab ) |
440 | printf("Mode: NotifyGrab\n"); |
441 | if ( xevent.xcrossing.mode == NotifyUngrab ) |
442 | printf("Mode: NotifyUngrab\n"); |
443 | #endif |
444 | if ( xevent.xcrossing.detail != NotifyInferior ) { |
445 | if ( this->input_grab == SDL_GRAB_OFF ) { |
446 | posted = SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); |
447 | } else { |
448 | posted = SDL_PrivateMouseMotion(0, 0, |
449 | xevent.xcrossing.x, |
450 | xevent.xcrossing.y); |
451 | } |
452 | } |
453 | } |
454 | break; |
455 | |
456 | /* Gaining input focus? */ |
457 | case FocusIn: { |
458 | #ifdef DEBUG_XEVENTS |
459 | printf("FocusIn!\n"); |
460 | #endif |
461 | posted = SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS); |
462 | |
463 | #ifdef X_HAVE_UTF8_STRING |
464 | if ( SDL_IC != NULL ) { |
465 | XSetICFocus(SDL_IC); |
466 | } |
467 | #endif |
468 | /* Queue entry into fullscreen mode */ |
469 | switch_waiting = 0x01 | SDL_FULLSCREEN; |
470 | switch_time = SDL_GetTicks() + 1500; |
471 | } |
472 | break; |
473 | |
474 | /* Losing input focus? */ |
475 | case FocusOut: { |
476 | #ifdef DEBUG_XEVENTS |
477 | printf("FocusOut!\n"); |
478 | #endif |
479 | posted = SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS); |
480 | |
481 | #ifdef X_HAVE_UTF8_STRING |
482 | if ( SDL_IC != NULL ) { |
483 | XUnsetICFocus(SDL_IC); |
484 | } |
485 | #endif |
486 | /* Queue leaving fullscreen mode */ |
487 | switch_waiting = 0x01; |
488 | switch_time = SDL_GetTicks() + 200; |
489 | } |
490 | break; |
491 | |
492 | #ifdef X_HAVE_UTF8_STRING |
493 | /* Some IM requires MappingNotify to be passed to |
494 | XRefreshKeyboardMapping by the app. */ |
495 | case MappingNotify: { |
496 | XRefreshKeyboardMapping(&xevent.xmapping); |
497 | } |
498 | break; |
499 | #endif /* X_HAVE_UTF8_STRING */ |
500 | |
501 | /* Generated upon EnterWindow and FocusIn */ |
502 | case KeymapNotify: { |
503 | #ifdef DEBUG_XEVENTS |
504 | printf("KeymapNotify!\n"); |
505 | #endif |
506 | X11_SetKeyboardState(SDL_Display, xevent.xkeymap.key_vector); |
507 | } |
508 | break; |
509 | |
510 | /* Mouse motion? */ |
511 | case MotionNotify: { |
512 | if ( SDL_VideoSurface ) { |
513 | if ( mouse_relative ) { |
514 | if ( using_dga & DGA_MOUSE ) { |
515 | #ifdef DEBUG_MOTION |
516 | printf("DGA motion: %d,%d\n", xevent.xmotion.x_root, xevent.xmotion.y_root); |
517 | #endif |
518 | posted = SDL_PrivateMouseMotion(0, 1, |
519 | xevent.xmotion.x_root, |
520 | xevent.xmotion.y_root); |
521 | } else { |
522 | posted = X11_WarpedMotion(this,&xevent); |
523 | } |
524 | } else { |
525 | #ifdef DEBUG_MOTION |
526 | printf("X11 motion: %d,%d\n", xevent.xmotion.x, xevent.xmotion.y); |
527 | #endif |
528 | posted = SDL_PrivateMouseMotion(0, 0, |
529 | xevent.xmotion.x, |
530 | xevent.xmotion.y); |
531 | } |
532 | } |
533 | } |
534 | break; |
535 | |
536 | /* Mouse button press? */ |
537 | case ButtonPress: { |
538 | posted = SDL_PrivateMouseButton(SDL_PRESSED, |
539 | xevent.xbutton.button, 0, 0); |
540 | } |
541 | break; |
542 | |
543 | /* Mouse button release? */ |
544 | case ButtonRelease: { |
545 | posted = SDL_PrivateMouseButton(SDL_RELEASED, |
546 | xevent.xbutton.button, 0, 0); |
547 | } |
548 | break; |
549 | |
550 | /* Key press? */ |
551 | case KeyPress: { |
552 | SDL_keysym keysym; |
553 | KeyCode keycode = xevent.xkey.keycode; |
554 | |
555 | #ifdef DEBUG_XEVENTS |
556 | printf("KeyPress (X11 keycode = 0x%X)\n", xevent.xkey.keycode); |
557 | #endif |
558 | /* If we're not doing translation, we're done! */ |
559 | if ( !SDL_TranslateUNICODE ) { |
560 | /* Get the translated SDL virtual keysym and put it on the queue.*/ |
561 | keysym.scancode = keycode; |
562 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
563 | keysym.mod = KMOD_NONE; |
564 | keysym.unicode = 0; |
565 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
566 | break; |
567 | } |
568 | |
569 | /* Look up the translated value for the key event */ |
570 | #ifdef X_HAVE_UTF8_STRING |
571 | if ( SDL_IC != NULL ) { |
572 | Status status; |
573 | KeySym xkeysym; |
574 | int i; |
575 | /* A UTF-8 character can be at most 6 bytes */ |
576 | /* ... It's true, but Xutf8LookupString can |
577 | return more than one characters. Moreover, |
578 | the spec. put no upper bound, so we should |
579 | be ready for longer strings. */ |
580 | char keybuf[32]; |
581 | char *keydata = keybuf; |
582 | int count; |
583 | Uint16 utf16buf[32]; |
584 | Uint16 *utf16data = utf16buf; |
585 | int utf16size; |
586 | int utf16length; |
587 | |
588 | count = Xutf8LookupString(SDL_IC, &xevent.xkey, keydata, sizeof(keybuf), &xkeysym, &status); |
589 | if (XBufferOverflow == status) { |
590 | /* The IM has just generated somewhat long |
591 | string. We need a longer buffer in this |
592 | case. */ |
593 | keydata = SDL_malloc(count); |
594 | if ( keydata == NULL ) { |
595 | SDL_OutOfMemory(); |
596 | break; |
597 | } |
598 | count = Xutf8LookupString(SDL_IC, &xevent.xkey, keydata, count, &xkeysym, &status); |
599 | } |
600 | |
601 | switch (status) { |
602 | |
603 | case XBufferOverflow: { |
604 | /* Oops! We have allocated the bytes as |
605 | requested by Xutf8LookupString, so the |
606 | length of the buffer must be |
607 | sufficient. This case should never |
608 | happen! */ |
609 | SDL_SetError("Xutf8LookupString indicated a double buffer overflow!"); |
610 | break; |
611 | } |
612 | |
613 | case XLookupChars: |
614 | case XLookupBoth: { |
615 | if (0 == count) { |
616 | break; |
617 | } |
618 | |
619 | /* We got a converted string from IM. Make |
620 | sure to deliver all characters to the |
621 | application as SDL events. Note that |
622 | an SDL event can only carry one UTF-16 |
623 | encoding unit, and a surrogate pair is |
624 | delivered as two SDL events. I guess |
625 | this behaviour is probably _imported_ |
626 | from Windows or MacOS. To do so, we need |
627 | to convert the UTF-8 data into UTF-16 |
628 | data (not UCS4/UTF-32!). We need an |
629 | estimate of the number of UTF-16 encoding |
630 | units here. The worst case is pure ASCII |
631 | string. Assume so. */ |
632 | /* In 1.3 SDL may have a text event instead, that |
633 | carries the whole UTF-8 string with it. */ |
634 | utf16size = count * sizeof(Uint16); |
635 | if (utf16size > sizeof(utf16buf)) { |
636 | utf16data = (Uint16 *) SDL_malloc(utf16size); |
637 | if (utf16data == NULL) { |
638 | SDL_OutOfMemory(); |
639 | break; |
640 | } |
641 | } |
642 | utf16length = Utf8ToUtf16((Uint8 *)keydata, count, utf16data, utf16size); |
643 | if (utf16length < 0) { |
644 | /* The keydata contained an invalid byte |
645 | sequence. It should be a bug of the IM |
646 | or Xlib... */ |
647 | SDL_SetError("Oops! Xutf8LookupString returned an invalid UTF-8 sequence!"); |
648 | break; |
649 | } |
650 | |
651 | /* Deliver all UTF-16 encoding units. At |
652 | this moment, SDL event queue has a |
653 | fixed size (128 events), and an SDL |
654 | event can hold just one UTF-16 encoding |
655 | unit. So, if we receive more than 128 |
656 | UTF-16 encoding units from a commit, |
657 | exceeded characters will be lost. */ |
658 | for (i = 0; i < utf16length - 1; i++) { |
659 | keysym.scancode = 0; |
660 | keysym.sym = SDLK_UNKNOWN; |
661 | keysym.mod = KMOD_NONE; |
662 | keysym.unicode = utf16data[i]; |
663 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
664 | } |
665 | /* The keysym for the last character carries the |
666 | scancode and symbol that corresponds to the X11 |
667 | keycode. */ |
668 | if (utf16length > 0) { |
669 | keysym.scancode = keycode; |
670 | keysym.sym = (keycode ? X11_TranslateKeycode(SDL_Display, keycode) : 0); |
671 | keysym.mod = KMOD_NONE; |
672 | keysym.unicode = utf16data[utf16length - 1]; |
673 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
674 | } |
675 | break; |
676 | } |
677 | |
678 | case XLookupKeySym: { |
679 | /* I'm not sure whether it is possible that |
680 | a zero keycode makes XLookupKeySym |
681 | status. What I'm sure is that a |
682 | combination of a zero scan code and a non |
683 | zero sym makes SDL_PrivateKeyboard |
684 | strange state... So, just discard it. |
685 | If this doesn't work, I'm receiving bug |
686 | reports, and I can know under what |
687 | condition this case happens. */ |
688 | if (keycode) { |
689 | keysym.scancode = keycode; |
690 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
691 | keysym.mod = KMOD_NONE; |
692 | keysym.unicode = 0; |
693 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
694 | } |
695 | break; |
696 | } |
697 | |
698 | case XLookupNone: { |
699 | /* IM has eaten the event. */ |
700 | break; |
701 | } |
702 | |
703 | default: |
704 | /* An unknown status from Xutf8LookupString. */ |
705 | SDL_SetError("Oops! Xutf8LookupStringreturned an unknown status"); |
706 | } |
707 | |
708 | /* Release dynamic buffers if allocated. */ |
709 | if (keydata != NULL && keybuf != keydata) { |
710 | SDL_free(keydata); |
711 | } |
712 | if (utf16data != NULL && utf16buf != utf16data) { |
713 | SDL_free(utf16data); |
714 | } |
715 | } |
716 | else |
717 | #endif |
718 | { |
719 | static XComposeStatus state; |
720 | char keybuf[32]; |
721 | |
722 | keysym.scancode = keycode; |
723 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
724 | keysym.mod = KMOD_NONE; |
725 | keysym.unicode = 0; |
726 | if ( XLookupString(&xevent.xkey, |
727 | keybuf, sizeof(keybuf), |
728 | NULL, &state) ) { |
729 | /* |
730 | * FIXME: XLookupString() may yield more than one |
731 | * character, so we need a mechanism to allow for |
732 | * this (perhaps null keypress events with a |
733 | * unicode value) |
734 | */ |
735 | keysym.unicode = (Uint8)keybuf[0]; |
736 | } |
737 | |
738 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
739 | } |
740 | } |
741 | break; |
742 | |
743 | /* Key release? */ |
744 | case KeyRelease: { |
745 | SDL_keysym keysym; |
746 | KeyCode keycode = xevent.xkey.keycode; |
747 | |
748 | if (keycode == 0) { |
749 | /* There should be no KeyRelease for keycode == 0, |
750 | since it is a notification from IM but a real |
751 | keystroke. */ |
752 | /* We need to emit some diagnostic message here. */ |
753 | break; |
754 | } |
755 | |
756 | #ifdef DEBUG_XEVENTS |
757 | printf("KeyRelease (X11 keycode = 0x%X)\n", xevent.xkey.keycode); |
758 | #endif |
759 | |
760 | /* Get the translated SDL virtual keysym */ |
761 | keysym.scancode = keycode; |
762 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
763 | keysym.mod = KMOD_NONE; |
764 | keysym.unicode = 0; |
765 | |
766 | posted = SDL_PrivateKeyboard(SDL_RELEASED, &keysym); |
767 | } |
768 | break; |
769 | |
770 | /* Have we been iconified? */ |
771 | case UnmapNotify: { |
772 | #ifdef DEBUG_XEVENTS |
773 | printf("UnmapNotify!\n"); |
774 | #endif |
775 | /* If we're active, make ourselves inactive */ |
776 | if ( SDL_GetAppState() & SDL_APPACTIVE ) { |
777 | /* Swap out the gamma before we go inactive */ |
778 | X11_SwapVidModeGamma(this); |
779 | |
780 | /* Send an internal deactivate event */ |
781 | posted = SDL_PrivateAppActive(0, |
782 | SDL_APPACTIVE|SDL_APPINPUTFOCUS); |
783 | } |
784 | } |
785 | break; |
786 | |
787 | /* Have we been restored? */ |
788 | case MapNotify: { |
789 | #ifdef DEBUG_XEVENTS |
790 | printf("MapNotify!\n"); |
791 | #endif |
792 | /* If we're not active, make ourselves active */ |
793 | if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) { |
794 | /* Send an internal activate event */ |
795 | posted = SDL_PrivateAppActive(1, SDL_APPACTIVE); |
796 | |
797 | /* Now that we're active, swap the gamma back */ |
798 | X11_SwapVidModeGamma(this); |
799 | } |
800 | |
801 | if ( SDL_VideoSurface && |
802 | (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { |
803 | X11_EnterFullScreen(this); |
804 | } else { |
805 | X11_GrabInputNoLock(this, this->input_grab); |
806 | } |
807 | X11_CheckMouseModeNoLock(this); |
808 | |
809 | if ( SDL_VideoSurface ) { |
810 | X11_RefreshDisplay(this); |
811 | } |
812 | } |
813 | break; |
814 | |
815 | /* Have we been resized or moved? */ |
816 | case ConfigureNotify: { |
817 | #ifdef DEBUG_XEVENTS |
818 | printf("ConfigureNotify! (resize: %dx%d)\n", xevent.xconfigure.width, xevent.xconfigure.height); |
819 | #endif |
820 | if ( SDL_VideoSurface ) { |
821 | if ((xevent.xconfigure.width != SDL_VideoSurface->w) || |
822 | (xevent.xconfigure.height != SDL_VideoSurface->h)) { |
823 | /* FIXME: Find a better fix for the bug with KDE 1.2 */ |
824 | if ( ! ((xevent.xconfigure.width == 32) && |
825 | (xevent.xconfigure.height == 32)) ) { |
826 | SDL_PrivateResize(xevent.xconfigure.width, |
827 | xevent.xconfigure.height); |
828 | } |
829 | } else { |
830 | /* OpenGL windows need to know about the change */ |
831 | if ( SDL_VideoSurface->flags & SDL_OPENGL ) { |
832 | SDL_PrivateExpose(); |
833 | } |
834 | } |
835 | } |
836 | } |
837 | break; |
838 | |
839 | /* Have we been requested to quit (or another client message?) */ |
840 | case ClientMessage: { |
841 | if ( (xevent.xclient.format == 32) && |
842 | (xevent.xclient.data.l[0] == WM_DELETE_WINDOW) ) |
843 | { |
844 | posted = SDL_PrivateQuit(); |
845 | } else |
846 | if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) { |
847 | SDL_SysWMmsg wmmsg; |
848 | |
849 | SDL_VERSION(&wmmsg.version); |
850 | wmmsg.subsystem = SDL_SYSWM_X11; |
851 | wmmsg.event.xevent = xevent; |
852 | posted = SDL_PrivateSysWMEvent(&wmmsg); |
853 | } |
854 | } |
855 | break; |
856 | |
857 | /* Do we need to refresh ourselves? */ |
858 | case Expose: { |
859 | #ifdef DEBUG_XEVENTS |
860 | printf("Expose (count = %d)\n", xevent.xexpose.count); |
861 | #endif |
862 | if ( SDL_VideoSurface && (xevent.xexpose.count == 0) ) { |
863 | X11_RefreshDisplay(this); |
864 | } |
865 | } |
866 | break; |
867 | |
868 | default: { |
869 | #ifdef DEBUG_XEVENTS |
870 | printf("Unhandled event %d\n", xevent.type); |
871 | #endif |
872 | /* Only post the event if we're watching for it */ |
873 | if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) { |
874 | SDL_SysWMmsg wmmsg; |
875 | |
876 | SDL_VERSION(&wmmsg.version); |
877 | wmmsg.subsystem = SDL_SYSWM_X11; |
878 | wmmsg.event.xevent = xevent; |
879 | posted = SDL_PrivateSysWMEvent(&wmmsg); |
880 | } |
881 | } |
882 | break; |
883 | } |
884 | return(posted); |
885 | } |
886 | |
887 | /* Ack! XPending() actually performs a blocking read if no events available */ |
888 | int X11_Pending(Display *display) |
889 | { |
890 | /* Flush the display connection and look to see if events are queued */ |
891 | XFlush(display); |
892 | if ( XEventsQueued(display, QueuedAlready) ) { |
893 | return(1); |
894 | } |
895 | |
896 | /* More drastic measures are required -- see if X is ready to talk */ |
897 | { |
898 | static struct timeval zero_time; /* static == 0 */ |
899 | int x11_fd; |
900 | fd_set fdset; |
901 | |
902 | x11_fd = ConnectionNumber(display); |
903 | FD_ZERO(&fdset); |
904 | FD_SET(x11_fd, &fdset); |
905 | if ( select(x11_fd+1, &fdset, NULL, NULL, &zero_time) == 1 ) { |
906 | return(XPending(display)); |
907 | } |
908 | } |
909 | |
910 | /* Oh well, nothing is ready .. */ |
911 | return(0); |
912 | } |
913 | |
914 | void X11_PumpEvents(_THIS) |
915 | { |
916 | int pending; |
917 | |
918 | /* Update activity every five seconds to prevent screensaver. --ryan. */ |
919 | if (!allow_screensaver) { |
920 | static Uint32 screensaverTicks; |
921 | Uint32 nowTicks = SDL_GetTicks(); |
922 | if ((nowTicks - screensaverTicks) > 5000) { |
923 | XResetScreenSaver(SDL_Display); |
924 | screensaverTicks = nowTicks; |
925 | } |
926 | } |
927 | |
928 | /* Keep processing pending events */ |
929 | pending = 0; |
930 | while ( X11_Pending(SDL_Display) ) { |
931 | X11_DispatchEvent(this); |
932 | ++pending; |
933 | } |
934 | if ( switch_waiting ) { |
935 | Uint32 now; |
936 | |
937 | now = SDL_GetTicks(); |
938 | if ( pending || !SDL_VideoSurface ) { |
939 | /* Try again later... */ |
940 | if ( switch_waiting & SDL_FULLSCREEN ) { |
941 | switch_time = now + 1500; |
942 | } else { |
943 | switch_time = now + 200; |
944 | } |
945 | } else if ( (int)(switch_time-now) <= 0 ) { |
946 | Uint32 go_fullscreen; |
947 | |
948 | go_fullscreen = switch_waiting & SDL_FULLSCREEN; |
949 | switch_waiting = 0; |
950 | if ( SDL_VideoSurface->flags & SDL_FULLSCREEN ) { |
951 | if ( go_fullscreen ) { |
952 | X11_EnterFullScreen(this); |
953 | } else { |
954 | X11_LeaveFullScreen(this); |
955 | } |
956 | } |
957 | /* Handle focus in/out when grabbed */ |
958 | if ( go_fullscreen ) { |
959 | X11_GrabInputNoLock(this, this->input_grab); |
960 | } else { |
961 | X11_GrabInputNoLock(this, SDL_GRAB_OFF); |
962 | } |
963 | X11_CheckMouseModeNoLock(this); |
964 | } |
965 | } |
966 | } |
967 | |
968 | void X11_InitKeymap(void) |
969 | { |
970 | int i; |
971 | |
972 | /* Odd keys used in international keyboards */ |
973 | for ( i=0; i<SDL_arraysize(ODD_keymap); ++i ) |
974 | ODD_keymap[i] = SDLK_UNKNOWN; |
975 | |
976 | /* Some of these might be mappable to an existing SDLK_ code */ |
977 | ODD_keymap[XK_dead_grave&0xFF] = SDLK_COMPOSE; |
978 | ODD_keymap[XK_dead_acute&0xFF] = SDLK_COMPOSE; |
979 | ODD_keymap[XK_dead_tilde&0xFF] = SDLK_COMPOSE; |
980 | ODD_keymap[XK_dead_macron&0xFF] = SDLK_COMPOSE; |
981 | ODD_keymap[XK_dead_breve&0xFF] = SDLK_COMPOSE; |
982 | ODD_keymap[XK_dead_abovedot&0xFF] = SDLK_COMPOSE; |
983 | ODD_keymap[XK_dead_diaeresis&0xFF] = SDLK_COMPOSE; |
984 | ODD_keymap[XK_dead_abovering&0xFF] = SDLK_COMPOSE; |
985 | ODD_keymap[XK_dead_doubleacute&0xFF] = SDLK_COMPOSE; |
986 | ODD_keymap[XK_dead_caron&0xFF] = SDLK_COMPOSE; |
987 | ODD_keymap[XK_dead_cedilla&0xFF] = SDLK_COMPOSE; |
988 | ODD_keymap[XK_dead_ogonek&0xFF] = SDLK_COMPOSE; |
989 | ODD_keymap[XK_dead_iota&0xFF] = SDLK_COMPOSE; |
990 | ODD_keymap[XK_dead_voiced_sound&0xFF] = SDLK_COMPOSE; |
991 | ODD_keymap[XK_dead_semivoiced_sound&0xFF] = SDLK_COMPOSE; |
992 | ODD_keymap[XK_dead_belowdot&0xFF] = SDLK_COMPOSE; |
993 | #ifdef XK_dead_hook |
994 | ODD_keymap[XK_dead_hook&0xFF] = SDLK_COMPOSE; |
995 | #endif |
996 | #ifdef XK_dead_horn |
997 | ODD_keymap[XK_dead_horn&0xFF] = SDLK_COMPOSE; |
998 | #endif |
999 | |
1000 | #ifdef XK_dead_circumflex |
1001 | /* These X keysyms have 0xFE as the high byte */ |
1002 | ODD_keymap[XK_dead_circumflex&0xFF] = SDLK_CARET; |
1003 | #endif |
1004 | #ifdef XK_ISO_Level3_Shift |
1005 | ODD_keymap[XK_ISO_Level3_Shift&0xFF] = SDLK_MODE; /* "Alt Gr" key */ |
1006 | #endif |
1007 | |
1008 | /* Map the miscellaneous keys */ |
1009 | for ( i=0; i<SDL_arraysize(MISC_keymap); ++i ) |
1010 | MISC_keymap[i] = SDLK_UNKNOWN; |
1011 | |
1012 | /* These X keysyms have 0xFF as the high byte */ |
1013 | MISC_keymap[XK_BackSpace&0xFF] = SDLK_BACKSPACE; |
1014 | MISC_keymap[XK_Tab&0xFF] = SDLK_TAB; |
1015 | MISC_keymap[XK_Clear&0xFF] = SDLK_CLEAR; |
1016 | MISC_keymap[XK_Return&0xFF] = SDLK_RETURN; |
1017 | MISC_keymap[XK_Pause&0xFF] = SDLK_PAUSE; |
1018 | MISC_keymap[XK_Escape&0xFF] = SDLK_ESCAPE; |
1019 | MISC_keymap[XK_Delete&0xFF] = SDLK_DELETE; |
1020 | |
1021 | MISC_keymap[XK_KP_0&0xFF] = SDLK_KP0; /* Keypad 0-9 */ |
1022 | MISC_keymap[XK_KP_1&0xFF] = SDLK_KP1; |
1023 | MISC_keymap[XK_KP_2&0xFF] = SDLK_KP2; |
1024 | MISC_keymap[XK_KP_3&0xFF] = SDLK_KP3; |
1025 | MISC_keymap[XK_KP_4&0xFF] = SDLK_KP4; |
1026 | MISC_keymap[XK_KP_5&0xFF] = SDLK_KP5; |
1027 | MISC_keymap[XK_KP_6&0xFF] = SDLK_KP6; |
1028 | MISC_keymap[XK_KP_7&0xFF] = SDLK_KP7; |
1029 | MISC_keymap[XK_KP_8&0xFF] = SDLK_KP8; |
1030 | MISC_keymap[XK_KP_9&0xFF] = SDLK_KP9; |
1031 | MISC_keymap[XK_KP_Insert&0xFF] = SDLK_KP0; |
1032 | MISC_keymap[XK_KP_End&0xFF] = SDLK_KP1; |
1033 | MISC_keymap[XK_KP_Down&0xFF] = SDLK_KP2; |
1034 | MISC_keymap[XK_KP_Page_Down&0xFF] = SDLK_KP3; |
1035 | MISC_keymap[XK_KP_Left&0xFF] = SDLK_KP4; |
1036 | MISC_keymap[XK_KP_Begin&0xFF] = SDLK_KP5; |
1037 | MISC_keymap[XK_KP_Right&0xFF] = SDLK_KP6; |
1038 | MISC_keymap[XK_KP_Home&0xFF] = SDLK_KP7; |
1039 | MISC_keymap[XK_KP_Up&0xFF] = SDLK_KP8; |
1040 | MISC_keymap[XK_KP_Page_Up&0xFF] = SDLK_KP9; |
1041 | MISC_keymap[XK_KP_Delete&0xFF] = SDLK_KP_PERIOD; |
1042 | MISC_keymap[XK_KP_Decimal&0xFF] = SDLK_KP_PERIOD; |
1043 | MISC_keymap[XK_KP_Divide&0xFF] = SDLK_KP_DIVIDE; |
1044 | MISC_keymap[XK_KP_Multiply&0xFF] = SDLK_KP_MULTIPLY; |
1045 | MISC_keymap[XK_KP_Subtract&0xFF] = SDLK_KP_MINUS; |
1046 | MISC_keymap[XK_KP_Add&0xFF] = SDLK_KP_PLUS; |
1047 | MISC_keymap[XK_KP_Enter&0xFF] = SDLK_KP_ENTER; |
1048 | MISC_keymap[XK_KP_Equal&0xFF] = SDLK_KP_EQUALS; |
1049 | |
1050 | MISC_keymap[XK_Up&0xFF] = SDLK_UP; |
1051 | MISC_keymap[XK_Down&0xFF] = SDLK_DOWN; |
1052 | MISC_keymap[XK_Right&0xFF] = SDLK_RIGHT; |
1053 | MISC_keymap[XK_Left&0xFF] = SDLK_LEFT; |
1054 | MISC_keymap[XK_Insert&0xFF] = SDLK_INSERT; |
1055 | MISC_keymap[XK_Home&0xFF] = SDLK_HOME; |
1056 | MISC_keymap[XK_End&0xFF] = SDLK_END; |
1057 | MISC_keymap[XK_Page_Up&0xFF] = SDLK_PAGEUP; |
1058 | MISC_keymap[XK_Page_Down&0xFF] = SDLK_PAGEDOWN; |
1059 | |
1060 | MISC_keymap[XK_F1&0xFF] = SDLK_F1; |
1061 | MISC_keymap[XK_F2&0xFF] = SDLK_F2; |
1062 | MISC_keymap[XK_F3&0xFF] = SDLK_F3; |
1063 | MISC_keymap[XK_F4&0xFF] = SDLK_F4; |
1064 | MISC_keymap[XK_F5&0xFF] = SDLK_F5; |
1065 | MISC_keymap[XK_F6&0xFF] = SDLK_F6; |
1066 | MISC_keymap[XK_F7&0xFF] = SDLK_F7; |
1067 | MISC_keymap[XK_F8&0xFF] = SDLK_F8; |
1068 | MISC_keymap[XK_F9&0xFF] = SDLK_F9; |
1069 | MISC_keymap[XK_F10&0xFF] = SDLK_F10; |
1070 | MISC_keymap[XK_F11&0xFF] = SDLK_F11; |
1071 | MISC_keymap[XK_F12&0xFF] = SDLK_F12; |
1072 | MISC_keymap[XK_F13&0xFF] = SDLK_F13; |
1073 | MISC_keymap[XK_F14&0xFF] = SDLK_F14; |
1074 | MISC_keymap[XK_F15&0xFF] = SDLK_F15; |
1075 | |
1076 | MISC_keymap[XK_Num_Lock&0xFF] = SDLK_NUMLOCK; |
1077 | MISC_keymap[XK_Caps_Lock&0xFF] = SDLK_CAPSLOCK; |
1078 | MISC_keymap[XK_Scroll_Lock&0xFF] = SDLK_SCROLLOCK; |
1079 | MISC_keymap[XK_Shift_R&0xFF] = SDLK_RSHIFT; |
1080 | MISC_keymap[XK_Shift_L&0xFF] = SDLK_LSHIFT; |
1081 | MISC_keymap[XK_Control_R&0xFF] = SDLK_RCTRL; |
1082 | MISC_keymap[XK_Control_L&0xFF] = SDLK_LCTRL; |
1083 | MISC_keymap[XK_Alt_R&0xFF] = SDLK_RALT; |
1084 | MISC_keymap[XK_Alt_L&0xFF] = SDLK_LALT; |
1085 | MISC_keymap[XK_Meta_R&0xFF] = SDLK_RMETA; |
1086 | MISC_keymap[XK_Meta_L&0xFF] = SDLK_LMETA; |
1087 | MISC_keymap[XK_Super_L&0xFF] = SDLK_LSUPER; /* Left "Windows" */ |
1088 | MISC_keymap[XK_Super_R&0xFF] = SDLK_RSUPER; /* Right "Windows */ |
1089 | MISC_keymap[XK_Mode_switch&0xFF] = SDLK_MODE; /* "Alt Gr" key */ |
1090 | MISC_keymap[XK_Multi_key&0xFF] = SDLK_COMPOSE; /* Multi-key compose */ |
1091 | |
1092 | MISC_keymap[XK_Help&0xFF] = SDLK_HELP; |
1093 | MISC_keymap[XK_Print&0xFF] = SDLK_PRINT; |
1094 | MISC_keymap[XK_Sys_Req&0xFF] = SDLK_SYSREQ; |
1095 | MISC_keymap[XK_Break&0xFF] = SDLK_BREAK; |
1096 | MISC_keymap[XK_Menu&0xFF] = SDLK_MENU; |
1097 | MISC_keymap[XK_Hyper_R&0xFF] = SDLK_MENU; /* Windows "Menu" key */ |
1098 | } |
1099 | |
1100 | /* Get the translated SDL virtual keysym */ |
1101 | SDLKey X11_TranslateKeycode(Display *display, KeyCode kc) |
1102 | { |
1103 | KeySym xsym; |
1104 | SDLKey key; |
1105 | |
1106 | xsym = XKeycodeToKeysym(display, kc, 0); |
1107 | #ifdef DEBUG_KEYS |
1108 | fprintf(stderr, "Translating key code %d -> 0x%.4x\n", kc, xsym); |
1109 | #endif |
1110 | key = SDLK_UNKNOWN; |
1111 | if ( xsym ) { |
1112 | switch (xsym>>8) { |
1113 | case 0x1005FF: |
1114 | #ifdef SunXK_F36 |
1115 | if ( xsym == SunXK_F36 ) |
1116 | key = SDLK_F11; |
1117 | #endif |
1118 | #ifdef SunXK_F37 |
1119 | if ( xsym == SunXK_F37 ) |
1120 | key = SDLK_F12; |
1121 | #endif |
1122 | break; |
1123 | case 0x00: /* Latin 1 */ |
1124 | key = (SDLKey)(xsym & 0xFF); |
1125 | break; |
1126 | case 0x01: /* Latin 2 */ |
1127 | case 0x02: /* Latin 3 */ |
1128 | case 0x03: /* Latin 4 */ |
1129 | case 0x04: /* Katakana */ |
1130 | case 0x05: /* Arabic */ |
1131 | case 0x06: /* Cyrillic */ |
1132 | case 0x07: /* Greek */ |
1133 | case 0x08: /* Technical */ |
1134 | case 0x0A: /* Publishing */ |
1135 | case 0x0C: /* Hebrew */ |
1136 | case 0x0D: /* Thai */ |
1137 | /* These are wrong, but it's better than nothing */ |
1138 | key = (SDLKey)(xsym & 0xFF); |
1139 | break; |
1140 | case 0xFE: |
1141 | key = ODD_keymap[xsym&0xFF]; |
1142 | break; |
1143 | case 0xFF: |
1144 | key = MISC_keymap[xsym&0xFF]; |
1145 | break; |
1146 | default: |
1147 | /* |
1148 | fprintf(stderr, "X11: Unhandled xsym, sym = 0x%04x\n", |
1149 | (unsigned int)xsym); |
1150 | */ |
1151 | break; |
1152 | } |
1153 | } else { |
1154 | /* X11 doesn't know how to translate the key! */ |
1155 | switch (kc) { |
1156 | /* Caution: |
1157 | These keycodes are from the Microsoft Keyboard |
1158 | */ |
1159 | case 115: |
1160 | key = SDLK_LSUPER; |
1161 | break; |
1162 | case 116: |
1163 | key = SDLK_RSUPER; |
1164 | break; |
1165 | case 117: |
1166 | key = SDLK_MENU; |
1167 | break; |
1168 | default: |
1169 | /* |
1170 | * no point in an error message; happens for |
1171 | * several keys when we get a keymap notify |
1172 | */ |
1173 | break; |
1174 | } |
1175 | } |
1176 | return key; |
1177 | } |
1178 | |
1179 | /* X11 modifier masks for various keys */ |
1180 | static unsigned meta_l_mask, meta_r_mask, alt_l_mask, alt_r_mask; |
1181 | static unsigned num_mask, mode_switch_mask; |
1182 | |
1183 | static void get_modifier_masks(Display *display) |
1184 | { |
1185 | static unsigned got_masks; |
1186 | int i, j; |
1187 | XModifierKeymap *xmods; |
1188 | unsigned n; |
1189 | |
1190 | if(got_masks) |
1191 | return; |
1192 | |
1193 | xmods = XGetModifierMapping(display); |
1194 | n = xmods->max_keypermod; |
1195 | for(i = 3; i < 8; i++) { |
1196 | for(j = 0; j < n; j++) { |
1197 | KeyCode kc = xmods->modifiermap[i * n + j]; |
1198 | KeySym ks = XKeycodeToKeysym(display, kc, 0); |
1199 | unsigned mask = 1 << i; |
1200 | switch(ks) { |
1201 | case XK_Num_Lock: |
1202 | num_mask = mask; break; |
1203 | case XK_Alt_L: |
1204 | alt_l_mask = mask; break; |
1205 | case XK_Alt_R: |
1206 | alt_r_mask = mask; break; |
1207 | case XK_Meta_L: |
1208 | meta_l_mask = mask; break; |
1209 | case XK_Meta_R: |
1210 | meta_r_mask = mask; break; |
1211 | case XK_Mode_switch: |
1212 | mode_switch_mask = mask; break; |
1213 | } |
1214 | } |
1215 | } |
1216 | XFreeModifiermap(xmods); |
1217 | got_masks = 1; |
1218 | } |
1219 | |
1220 | |
1221 | /* |
1222 | * This function is semi-official; it is not officially exported and should |
1223 | * not be considered part of the SDL API, but may be used by client code |
1224 | * that *really* needs it (including legacy code). |
1225 | * It is slow, though, and should be avoided if possible. |
1226 | * |
1227 | * Note that it isn't completely accurate either; in particular, multi-key |
1228 | * sequences (dead accents, compose key sequences) will not work since the |
1229 | * state has been irrevocably lost. |
1230 | */ |
1231 | Uint16 X11_KeyToUnicode(SDLKey keysym, SDLMod modifiers) |
1232 | { |
1233 | struct SDL_VideoDevice *this = current_video; |
1234 | char keybuf[32]; |
1235 | int i; |
1236 | KeySym xsym = 0; |
1237 | XKeyEvent xkey; |
1238 | Uint16 unicode; |
1239 | |
1240 | if ( !this || !SDL_Display ) { |
1241 | return 0; |
1242 | } |
1243 | |
1244 | SDL_memset(&xkey, 0, sizeof(xkey)); |
1245 | xkey.display = SDL_Display; |
1246 | |
1247 | xsym = keysym; /* last resort if not found */ |
1248 | for (i = 0; i < 256; ++i) { |
1249 | if ( MISC_keymap[i] == keysym ) { |
1250 | xsym = 0xFF00 | i; |
1251 | break; |
1252 | } else if ( ODD_keymap[i] == keysym ) { |
1253 | xsym = 0xFE00 | i; |
1254 | break; |
1255 | } |
1256 | } |
1257 | |
1258 | xkey.keycode = XKeysymToKeycode(xkey.display, xsym); |
1259 | |
1260 | get_modifier_masks(SDL_Display); |
1261 | if(modifiers & KMOD_SHIFT) |
1262 | xkey.state |= ShiftMask; |
1263 | if(modifiers & KMOD_CAPS) |
1264 | xkey.state |= LockMask; |
1265 | if(modifiers & KMOD_CTRL) |
1266 | xkey.state |= ControlMask; |
1267 | if(modifiers & KMOD_MODE) |
1268 | xkey.state |= mode_switch_mask; |
1269 | if(modifiers & KMOD_LALT) |
1270 | xkey.state |= alt_l_mask; |
1271 | if(modifiers & KMOD_RALT) |
1272 | xkey.state |= alt_r_mask; |
1273 | if(modifiers & KMOD_LMETA) |
1274 | xkey.state |= meta_l_mask; |
1275 | if(modifiers & KMOD_RMETA) |
1276 | xkey.state |= meta_r_mask; |
1277 | if(modifiers & KMOD_NUM) |
1278 | xkey.state |= num_mask; |
1279 | |
1280 | unicode = 0; |
1281 | if ( XLookupString(&xkey, keybuf, sizeof(keybuf), NULL, NULL) ) |
1282 | unicode = (unsigned char)keybuf[0]; |
1283 | return(unicode); |
1284 | } |
1285 | |
1286 | |
1287 | /* |
1288 | * Called when focus is regained, to read the keyboard state and generate |
1289 | * synthetic keypress/release events. |
1290 | * key_vec is a bit vector of keycodes (256 bits) |
1291 | */ |
1292 | void X11_SetKeyboardState(Display *display, const char *key_vec) |
1293 | { |
1294 | char keys_return[32]; |
1295 | int i; |
1296 | Uint8 *kstate = SDL_GetKeyState(NULL); |
1297 | SDLMod modstate; |
1298 | Window junk_window; |
1299 | int x, y; |
1300 | unsigned int mask; |
1301 | |
1302 | /* The first time the window is mapped, we initialize key state */ |
1303 | if ( ! key_vec ) { |
1304 | XQueryKeymap(display, keys_return); |
1305 | key_vec = keys_return; |
1306 | } |
1307 | |
1308 | /* Get the keyboard modifier state */ |
1309 | modstate = 0; |
1310 | get_modifier_masks(display); |
1311 | if ( XQueryPointer(display, DefaultRootWindow(display), |
1312 | &junk_window, &junk_window, &x, &y, &x, &y, &mask) ) { |
1313 | if ( mask & LockMask ) { |
1314 | modstate |= KMOD_CAPS; |
1315 | } |
1316 | if ( mask & mode_switch_mask ) { |
1317 | modstate |= KMOD_MODE; |
1318 | } |
1319 | if ( mask & num_mask ) { |
1320 | modstate |= KMOD_NUM; |
1321 | } |
1322 | } |
1323 | |
1324 | /* Zero the new keyboard state and generate it */ |
1325 | SDL_memset(kstate, 0, SDLK_LAST); |
1326 | /* |
1327 | * An obvious optimisation is to check entire longwords at a time in |
1328 | * both loops, but we can't be sure the arrays are aligned so it's not |
1329 | * worth the extra complexity |
1330 | */ |
1331 | for ( i = 0; i < 32; i++ ) { |
1332 | int j; |
1333 | if ( !key_vec[i] ) |
1334 | continue; |
1335 | for ( j = 0; j < 8; j++ ) { |
1336 | if ( key_vec[i] & (1 << j) ) { |
1337 | SDLKey key; |
1338 | KeyCode kc = (i << 3 | j); |
1339 | key = X11_TranslateKeycode(display, kc); |
1340 | if ( key == SDLK_UNKNOWN ) { |
1341 | continue; |
1342 | } |
1343 | kstate[key] = SDL_PRESSED; |
1344 | switch (key) { |
1345 | case SDLK_LSHIFT: |
1346 | modstate |= KMOD_LSHIFT; |
1347 | break; |
1348 | case SDLK_RSHIFT: |
1349 | modstate |= KMOD_RSHIFT; |
1350 | break; |
1351 | case SDLK_LCTRL: |
1352 | modstate |= KMOD_LCTRL; |
1353 | break; |
1354 | case SDLK_RCTRL: |
1355 | modstate |= KMOD_RCTRL; |
1356 | break; |
1357 | case SDLK_LALT: |
1358 | modstate |= KMOD_LALT; |
1359 | break; |
1360 | case SDLK_RALT: |
1361 | modstate |= KMOD_RALT; |
1362 | break; |
1363 | case SDLK_LMETA: |
1364 | modstate |= KMOD_LMETA; |
1365 | break; |
1366 | case SDLK_RMETA: |
1367 | modstate |= KMOD_RMETA; |
1368 | break; |
1369 | default: |
1370 | break; |
1371 | } |
1372 | } |
1373 | } |
1374 | } |
1375 | |
1376 | /* Hack - set toggle key state */ |
1377 | if ( modstate & KMOD_CAPS ) { |
1378 | kstate[SDLK_CAPSLOCK] = SDL_PRESSED; |
1379 | } else { |
1380 | kstate[SDLK_CAPSLOCK] = SDL_RELEASED; |
1381 | } |
1382 | if ( modstate & KMOD_NUM ) { |
1383 | kstate[SDLK_NUMLOCK] = SDL_PRESSED; |
1384 | } else { |
1385 | kstate[SDLK_NUMLOCK] = SDL_RELEASED; |
1386 | } |
1387 | |
1388 | /* Set the final modifier state */ |
1389 | SDL_SetModState(modstate); |
1390 | } |
1391 | |
1392 | void X11_InitOSKeymap(_THIS) |
1393 | { |
1394 | X11_InitKeymap(); |
1395 | } |
1396 | |