1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#if defined(SDL_BACKEND)
#include "backends/events/sdl/sdl-events.h"
#include "backends/platform/sdl/sdl.h"
#include "backends/graphics/graphics.h"
#include "common/config-manager.h"
#include "common/textconsole.h"
// FIXME move joystick defines out and replace with confile file options
// we should really allow users to map any key to a joystick button
#define JOY_DEADZONE 3200
#ifndef __SYMBIAN32__ // Symbian wants dialog joystick i.e cursor for movement/selection
#define JOY_ANALOG
#endif
// #define JOY_INVERT_Y
#define JOY_XAXIS 0
#define JOY_YAXIS 1
// buttons
#define JOY_BUT_LMOUSE 0
#define JOY_BUT_RMOUSE 2
#define JOY_BUT_ESCAPE 3
#define JOY_BUT_PERIOD 1
#define JOY_BUT_SPACE 4
#define JOY_BUT_F5 5
#if SDL_VERSION_ATLEAST(2, 0, 0)
static uint32 convUTF8ToUTF32(const char *src) {
uint32 utf32 = 0;
char *dst = SDL_iconv_string(
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
"UTF-32BE",
#else
"UTF-32LE",
#endif
"UTF-8", src, SDL_strlen(src) + 1);
if (dst) {
utf32 = *((uint32 *)dst);
SDL_free(dst);
}
return utf32;
}
#endif
SdlEventSource::SdlEventSource()
: EventSource(), _scrollLock(false), _joystick(0), _lastScreenID(0), _graphicsManager(0)
#if SDL_VERSION_ATLEAST(2, 0, 0)
, _queuedFakeKeyUp(false), _fakeKeyUp()
#endif
{
// Reset mouse state
memset(&_km, 0, sizeof(_km));
int joystick_num = ConfMan.getInt("joystick_num");
if (joystick_num >= 0) {
// Initialize SDL joystick subsystem
if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) == -1) {
error("Could not initialize SDL: %s", SDL_GetError());
}
// Enable joystick
if (SDL_NumJoysticks() > joystick_num) {
_joystick = SDL_JoystickOpen(joystick_num);
debug("Using joystick: %s",
#if SDL_VERSION_ATLEAST(2, 0, 0)
SDL_JoystickName(_joystick)
#else
SDL_JoystickName(joystick_num)
#endif
);
} else {
warning("Invalid joystick: %d", joystick_num);
}
}
}
SdlEventSource::~SdlEventSource() {
if (_joystick)
SDL_JoystickClose(_joystick);
}
int SdlEventSource::mapKey(SDLKey sdlKey, SDLMod mod, Uint16 unicode) {
Common::KeyCode key = SDLToOSystemKeycode(sdlKey);
// Attention:
// When using SDL1.x, we will get scancodes via sdlKey, that are raw scancodes, so NOT adjusted to keyboard layout/
// mapping. So for example for certain locales, we will get KEYCODE_y, when 'z' is pressed and so on.
// When using SDL2.x however, we will get scancodes based on the keyboard layout.
if (key >= Common::KEYCODE_F1 && key <= Common::KEYCODE_F9) {
return key - Common::KEYCODE_F1 + Common::ASCII_F1;
} else if (key >= Common::KEYCODE_KP0 && key <= Common::KEYCODE_KP9) {
if ((mod & KMOD_NUM) == 0)
return 0; // In case Num-Lock is NOT enabled, return 0 for ascii, so that directional keys on numpad work
return key - Common::KEYCODE_KP0 + '0';
} else if (key >= Common::KEYCODE_UP && key <= Common::KEYCODE_PAGEDOWN) {
return key;
} else if ((unicode >= 0x20) && ((unicode <= 0x7E) || (key == Common::KEYCODE_INVALID))) {
// Return unicode in case it's regular ASCII text or in case we didn't get a valid keycode
//
// We need to use unicode in those cases, simply because SDL1.x passes us non-layout-adjusted keycodes.
// So unicode is the only way to get layout-adjusted keys.
//
// We need to restrict unicode to only up to 0x7E, because on macOS the option/alt key will switch to
// an alternate keyboard, which will cause us to receive Unicode characters for some keys, which are outside
// of the ASCII range (e.g. alt-x will get us U+2248). We need to return 'x' for alt-x, so using unicode
// in that case would break alt-shortcuts.
// The latter check for KEYCODE_INVALID is needed for special characters like umlauts, otherwise
// we wouldn't pass such characters anymore.
//
// TODO: Maybe never return unicode in case it's > 255? Does any engine need such?
return unicode;
} else if (key >= 'a' && key <= 'z' && (mod & KMOD_SHIFT)) {
return key & ~0x20;
} else if (key >= Common::KEYCODE_NUMLOCK && key <= Common::KEYCODE_EURO) {
return 0;
} else {
return key;
}
}
void SdlEventSource::processMouseEvent(Common::Event &event, int x, int y) {
event.mouse.x = x;
event.mouse.y = y;
if (_graphicsManager) {
_graphicsManager->notifyMousePos(Common::Point(x, y));
_graphicsManager->transformMouseCoordinates(event.mouse);
}
// Update the "keyboard mouse" coords
_km.x = x;
_km.y = y;
}
void SdlEventSource::handleKbdMouse() {
// Skip recording of these events
uint32 curTime = g_system->getMillis(true);
if (curTime >= _km.last_time + _km.delay_time) {
_km.last_time = curTime;
if (_km.x_down_count == 1) {
_km.x_down_time = curTime;
_km.x_down_count = 2;
}
if (_km.y_down_count == 1) {
_km.y_down_time = curTime;
_km.y_down_count = 2;
}
if (_km.x_vel || _km.y_vel) {
if (_km.x_down_count) {
if (curTime > _km.x_down_time + _km.delay_time * 12) {
if (_km.x_vel > 0)
_km.x_vel++;
else
_km.x_vel--;
} else if (curTime > _km.x_down_time + _km.delay_time * 8) {
if (_km.x_vel > 0)
_km.x_vel = 5;
else
_km.x_vel = -5;
}
}
if (_km.y_down_count) {
if (curTime > _km.y_down_time + _km.delay_time * 12) {
if (_km.y_vel > 0)
_km.y_vel++;
else
_km.y_vel--;
} else if (curTime > _km.y_down_time + _km.delay_time * 8) {
if (_km.y_vel > 0)
_km.y_vel = 5;
else
_km.y_vel = -5;
}
}
_km.x += _km.x_vel;
_km.y += _km.y_vel;
if (_km.x < 0) {
_km.x = 0;
_km.x_vel = -1;
_km.x_down_count = 1;
} else if (_km.x > _km.x_max) {
_km.x = _km.x_max;
_km.x_vel = 1;
_km.x_down_count = 1;
}
if (_km.y < 0) {
_km.y = 0;
_km.y_vel = -1;
_km.y_down_count = 1;
} else if (_km.y > _km.y_max) {
_km.y = _km.y_max;
_km.y_vel = 1;
_km.y_down_count = 1;
}
if (_graphicsManager) {
_graphicsManager->getWindow()->warpMouseInWindow((Uint16)_km.x, (Uint16)_km.y);
}
}
}
}
void SdlEventSource::SDLModToOSystemKeyFlags(SDLMod mod, Common::Event &event) {
event.kbd.flags = 0;
#ifdef LINUPY
// Yopy has no ALT key, steal the SHIFT key
// (which isn't used much anyway)
if (mod & KMOD_SHIFT)
event.kbd.flags |= Common::KBD_ALT;
#else
if (mod & KMOD_SHIFT)
event.kbd.flags |= Common::KBD_SHIFT;
if (mod & KMOD_ALT)
event.kbd.flags |= Common::KBD_ALT;
#endif
if (mod & KMOD_CTRL)
event.kbd.flags |= Common::KBD_CTRL;
if (mod & KMOD_META)
event.kbd.flags |= Common::KBD_META;
// Sticky flags
if (mod & KMOD_NUM)
event.kbd.flags |= Common::KBD_NUM;
if (mod & KMOD_CAPS)
event.kbd.flags |= Common::KBD_CAPS;
}
Common::KeyCode SdlEventSource::SDLToOSystemKeycode(const SDLKey key) {
switch (key) {
case SDLK_BACKSPACE: return Common::KEYCODE_BACKSPACE;
case SDLK_TAB: return Common::KEYCODE_TAB;
case SDLK_CLEAR: return Common::KEYCODE_CLEAR;
case SDLK_RETURN: return Common::KEYCODE_RETURN;
case SDLK_PAUSE: return Common::KEYCODE_PAUSE;
case SDLK_ESCAPE: return Common::KEYCODE_ESCAPE;
case SDLK_SPACE: return Common::KEYCODE_SPACE;
case SDLK_EXCLAIM: return Common::KEYCODE_EXCLAIM;
case SDLK_QUOTEDBL: return Common::KEYCODE_QUOTEDBL;
case SDLK_HASH: return Common::KEYCODE_HASH;
case SDLK_DOLLAR: return Common::KEYCODE_DOLLAR;
case SDLK_AMPERSAND: return Common::KEYCODE_AMPERSAND;
case SDLK_QUOTE: return Common::KEYCODE_QUOTE;
case SDLK_LEFTPAREN: return Common::KEYCODE_LEFTPAREN;
case SDLK_RIGHTPAREN: return Common::KEYCODE_RIGHTPAREN;
case SDLK_ASTERISK: return Common::KEYCODE_ASTERISK;
case SDLK_PLUS: return Common::KEYCODE_PLUS;
case SDLK_COMMA: return Common::KEYCODE_COMMA;
case SDLK_MINUS: return Common::KEYCODE_MINUS;
case SDLK_PERIOD: return Common::KEYCODE_PERIOD;
case SDLK_SLASH: return Common::KEYCODE_SLASH;
case SDLK_0: return Common::KEYCODE_0;
case SDLK_1: return Common::KEYCODE_1;
case SDLK_2: return Common::KEYCODE_2;
case SDLK_3: return Common::KEYCODE_3;
case SDLK_4: return Common::KEYCODE_4;
case SDLK_5: return Common::KEYCODE_5;
case SDLK_6: return Common::KEYCODE_6;
case SDLK_7: return Common::KEYCODE_7;
case SDLK_8: return Common::KEYCODE_8;
case SDLK_9: return Common::KEYCODE_9;
case SDLK_COLON: return Common::KEYCODE_COLON;
case SDLK_SEMICOLON: return Common::KEYCODE_SEMICOLON;
case SDLK_LESS: return Common::KEYCODE_LESS;
case SDLK_EQUALS: return Common::KEYCODE_EQUALS;
case SDLK_GREATER: return Common::KEYCODE_GREATER;
case SDLK_QUESTION: return Common::KEYCODE_QUESTION;
case SDLK_AT: return Common::KEYCODE_AT;
case SDLK_LEFTBRACKET: return Common::KEYCODE_LEFTBRACKET;
case SDLK_BACKSLASH: return Common::KEYCODE_BACKSLASH;
case SDLK_RIGHTBRACKET: return Common::KEYCODE_RIGHTBRACKET;
case SDLK_CARET: return Common::KEYCODE_CARET;
case SDLK_UNDERSCORE: return Common::KEYCODE_UNDERSCORE;
case SDLK_BACKQUOTE: return Common::KEYCODE_BACKQUOTE;
case SDLK_a: return Common::KEYCODE_a;
case SDLK_b: return Common::KEYCODE_b;
case SDLK_c: return Common::KEYCODE_c;
case SDLK_d: return Common::KEYCODE_d;
case SDLK_e: return Common::KEYCODE_e;
case SDLK_f: return Common::KEYCODE_f;
case SDLK_g: return Common::KEYCODE_g;
case SDLK_h: return Common::KEYCODE_h;
case SDLK_i: return Common::KEYCODE_i;
case SDLK_j: return Common::KEYCODE_j;
case SDLK_k: return Common::KEYCODE_k;
case SDLK_l: return Common::KEYCODE_l;
case SDLK_m: return Common::KEYCODE_m;
case SDLK_n: return Common::KEYCODE_n;
case SDLK_o: return Common::KEYCODE_o;
case SDLK_p: return Common::KEYCODE_p;
case SDLK_q: return Common::KEYCODE_q;
case SDLK_r: return Common::KEYCODE_r;
case SDLK_s: return Common::KEYCODE_s;
case SDLK_t: return Common::KEYCODE_t;
case SDLK_u: return Common::KEYCODE_u;
case SDLK_v: return Common::KEYCODE_v;
case SDLK_w: return Common::KEYCODE_w;
case SDLK_x: return Common::KEYCODE_x;
case SDLK_y: return Common::KEYCODE_y;
case SDLK_z: return Common::KEYCODE_z;
case SDLK_DELETE: return Common::KEYCODE_DELETE;
#if SDL_VERSION_ATLEAST(2, 0, 0)
case SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_GRAVE): return Common::KEYCODE_TILDE;
#else
case SDLK_WORLD_16: return Common::KEYCODE_TILDE;
#endif
case SDLK_KP0: return Common::KEYCODE_KP0;
case SDLK_KP1: return Common::KEYCODE_KP1;
case SDLK_KP2: return Common::KEYCODE_KP2;
case SDLK_KP3: return Common::KEYCODE_KP3;
case SDLK_KP4: return Common::KEYCODE_KP4;
case SDLK_KP5: return Common::KEYCODE_KP5;
case SDLK_KP6: return Common::KEYCODE_KP6;
case SDLK_KP7: return Common::KEYCODE_KP7;
case SDLK_KP8: return Common::KEYCODE_KP8;
case SDLK_KP9: return Common::KEYCODE_KP9;
case SDLK_KP_PERIOD: return Common::KEYCODE_KP_PERIOD;
case SDLK_KP_DIVIDE: return Common::KEYCODE_KP_DIVIDE;
case SDLK_KP_MULTIPLY: return Common::KEYCODE_KP_MULTIPLY;
case SDLK_KP_MINUS: return Common::KEYCODE_KP_MINUS;
case SDLK_KP_PLUS: return Common::KEYCODE_KP_PLUS;
case SDLK_KP_ENTER: return Common::KEYCODE_KP_ENTER;
case SDLK_KP_EQUALS: return Common::KEYCODE_KP_EQUALS;
case SDLK_UP: return Common::KEYCODE_UP;
case SDLK_DOWN: return Common::KEYCODE_DOWN;
case SDLK_RIGHT: return Common::KEYCODE_RIGHT;
case SDLK_LEFT: return Common::KEYCODE_LEFT;
case SDLK_INSERT: return Common::KEYCODE_INSERT;
case SDLK_HOME: return Common::KEYCODE_HOME;
case SDLK_END: return Common::KEYCODE_END;
case SDLK_PAGEUP: return Common::KEYCODE_PAGEUP;
case SDLK_PAGEDOWN: return Common::KEYCODE_PAGEDOWN;
case SDLK_F1: return Common::KEYCODE_F1;
case SDLK_F2: return Common::KEYCODE_F2;
case SDLK_F3: return Common::KEYCODE_F3;
case SDLK_F4: return Common::KEYCODE_F4;
case SDLK_F5: return Common::KEYCODE_F5;
case SDLK_F6: return Common::KEYCODE_F6;
case SDLK_F7: return Common::KEYCODE_F7;
case SDLK_F8: return Common::KEYCODE_F8;
case SDLK_F9: return Common::KEYCODE_F9;
case SDLK_F10: return Common::KEYCODE_F10;
case SDLK_F11: return Common::KEYCODE_F11;
case SDLK_F12: return Common::KEYCODE_F12;
case SDLK_F13: return Common::KEYCODE_F13;
case SDLK_F14: return Common::KEYCODE_F14;
case SDLK_F15: return Common::KEYCODE_F15;
case SDLK_NUMLOCK: return Common::KEYCODE_NUMLOCK;
case SDLK_CAPSLOCK: return Common::KEYCODE_CAPSLOCK;
case SDLK_SCROLLOCK: return Common::KEYCODE_SCROLLOCK;
case SDLK_RSHIFT: return Common::KEYCODE_RSHIFT;
case SDLK_LSHIFT: return Common::KEYCODE_LSHIFT;
case SDLK_RCTRL: return Common::KEYCODE_RCTRL;
case SDLK_LCTRL: return Common::KEYCODE_LCTRL;
case SDLK_RALT: return Common::KEYCODE_RALT;
case SDLK_LALT: return Common::KEYCODE_LALT;
case SDLK_LSUPER: return Common::KEYCODE_LSUPER;
case SDLK_RSUPER: return Common::KEYCODE_RSUPER;
case SDLK_MODE: return Common::KEYCODE_MODE;
case SDLK_COMPOSE: return Common::KEYCODE_COMPOSE;
case SDLK_HELP: return Common::KEYCODE_HELP;
case SDLK_PRINT: return Common::KEYCODE_PRINT;
case SDLK_SYSREQ: return Common::KEYCODE_SYSREQ;
#if !SDL_VERSION_ATLEAST(2, 0, 0)
case SDLK_BREAK: return Common::KEYCODE_BREAK;
#endif
case SDLK_MENU: return Common::KEYCODE_MENU;
case SDLK_POWER: return Common::KEYCODE_POWER;
case SDLK_UNDO: return Common::KEYCODE_UNDO;
default: return Common::KEYCODE_INVALID;
}
}
bool SdlEventSource::pollEvent(Common::Event &event) {
handleKbdMouse();
#if SDL_VERSION_ATLEAST(2, 0, 0)
// In case we still need to send a key up event for a key down from a
// TEXTINPUT event we do this immediately.
if (_queuedFakeKeyUp) {
event = _fakeKeyUp;
_queuedFakeKeyUp = false;
return true;
}
#endif
// If the screen changed, send an Common::EVENT_SCREEN_CHANGED
int screenID = ((OSystem_SDL *)g_system)->getGraphicsManager()->getScreenChangeID();
if (screenID != _lastScreenID) {
_lastScreenID = screenID;
event.type = Common::EVENT_SCREEN_CHANGED;
return true;
}
SDL_Event ev;
while (SDL_PollEvent(&ev)) {
preprocessEvents(&ev);
if (dispatchSDLEvent(ev, event))
return true;
}
return false;
}
bool SdlEventSource::dispatchSDLEvent(SDL_Event &ev, Common::Event &event) {
switch (ev.type) {
case SDL_KEYDOWN:
return handleKeyDown(ev, event);
case SDL_KEYUP:
return handleKeyUp(ev, event);
case SDL_MOUSEMOTION:
return handleMouseMotion(ev, event);
case SDL_MOUSEBUTTONDOWN:
return handleMouseButtonDown(ev, event);
case SDL_MOUSEBUTTONUP:
return handleMouseButtonUp(ev, event);
case SDL_JOYBUTTONDOWN:
return handleJoyButtonDown(ev, event);
case SDL_JOYBUTTONUP:
return handleJoyButtonUp(ev, event);
case SDL_JOYAXISMOTION:
return handleJoyAxisMotion(ev, event);
#if SDL_VERSION_ATLEAST(2, 0, 0)
case SDL_MOUSEWHEEL: {
Sint32 yDir = ev.wheel.y;
#if SDL_VERSION_ATLEAST(2, 0, 4)
if (ev.wheel.direction == SDL_MOUSEWHEEL_FLIPPED) {
yDir *= -1;
}
#endif
// HACK: It seems we want the mouse coordinates supplied
// with a mouse wheel event. However, SDL2 does not supply
// these, thus we use whatever we got last time. It seems
// these are always stored in _km.x, _km.y.
processMouseEvent(event, _km.x, _km.y);
if (yDir < 0) {
event.type = Common::EVENT_WHEELDOWN;
return true;
} else if (yDir > 0) {
event.type = Common::EVENT_WHEELUP;
return true;
} else {
return false;
}
}
case SDL_TEXTINPUT: {
// When we get a TEXTINPUT event it means we got some user input for
// which no KEYDOWN exists. SDL 1.2 introduces a "fake" key down+up
// in such cases. We will do the same to mimic it's behavior.
event.type = Common::EVENT_KEYDOWN;
event.kbd = Common::KeyState(Common::KEYCODE_INVALID, convUTF8ToUTF32(ev.text.text), 0);
SDLModToOSystemKeyFlags(SDL_GetModState(), event);
// Set the scroll lock sticky flag
if (_scrollLock)
event.kbd.flags |= Common::KBD_SCRL;
// Fake a key up when we have a proper ascii value.
_queuedFakeKeyUp = (event.kbd.ascii != 0);
_fakeKeyUp = event;
_fakeKeyUp.type = Common::EVENT_KEYUP;
return _queuedFakeKeyUp;
}
case SDL_WINDOWEVENT:
switch (ev.window.event) {
case SDL_WINDOWEVENT_EXPOSED:
if (_graphicsManager)
_graphicsManager->notifyVideoExpose();
return false;
case SDL_WINDOWEVENT_RESIZED:
return handleResizeEvent(event, ev.window.data1, ev.window.data2);
default:
return false;
}
#else
case SDL_VIDEOEXPOSE:
if (_graphicsManager)
_graphicsManager->notifyVideoExpose();
return false;
case SDL_VIDEORESIZE:
return handleResizeEvent(event, ev.resize.w, ev.resize.h);
#endif
case SDL_QUIT:
event.type = Common::EVENT_QUIT;
return true;
}
return false;
}
bool SdlEventSource::handleKeyDown(SDL_Event &ev, Common::Event &event) {
SDLModToOSystemKeyFlags(SDL_GetModState(), event);
// Handle scroll lock as a key modifier
if (ev.key.keysym.sym == SDLK_SCROLLOCK)
_scrollLock = !_scrollLock;
if (_scrollLock)
event.kbd.flags |= Common::KBD_SCRL;
// Ctrl-m toggles mouse capture
if (event.kbd.hasFlags(Common::KBD_CTRL) && ev.key.keysym.sym == 'm') {
if (_graphicsManager) {
_graphicsManager->getWindow()->toggleMouseGrab();
}
return false;
}
#if defined(MACOSX)
// On Macintosh, Cmd-Q quits
if ((ev.key.keysym.mod & KMOD_META) && ev.key.keysym.sym == 'q') {
event.type = Common::EVENT_QUIT;
return true;
}
#elif defined(POSIX)
// On other *nix systems, Control-Q quits
if ((ev.key.keysym.mod & KMOD_CTRL) && ev.key.keysym.sym == 'q') {
event.type = Common::EVENT_QUIT;
return true;
}
#else
// Ctrl-z quits
if ((event.kbd.hasFlags(Common::KBD_CTRL) && ev.key.keysym.sym == 'z')) {
event.type = Common::EVENT_QUIT;
return true;
}
#ifdef WIN32
// On Windows, also use the default Alt-F4 quit combination
if ((ev.key.keysym.mod & KMOD_ALT) && ev.key.keysym.sym == SDLK_F4) {
event.type = Common::EVENT_QUIT;
return true;
}
#endif
#endif
// Ctrl-u toggles mute
if ((ev.key.keysym.mod & KMOD_CTRL) && ev.key.keysym.sym == 'u') {
event.type = Common::EVENT_MUTE;
return true;
}
if (remapKey(ev, event))
return true;
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = SDLToOSystemKeycode(ev.key.keysym.sym);
event.kbd.ascii = mapKey(ev.key.keysym.sym, (SDLMod)ev.key.keysym.mod, obtainUnicode(ev.key.keysym));
return true;
}
bool SdlEventSource::handleKeyUp(SDL_Event &ev, Common::Event &event) {
if (remapKey(ev, event))
return true;
SDLMod mod = SDL_GetModState();
// Check if this is an event handled by handleKeyDown(), and stop if it is
// Check if the Ctrl key is down, so that we can trap cases where the
// user has the Ctrl key down, and has just released a special key
if (mod & KMOD_CTRL) {
if (ev.key.keysym.sym == 'm' || // Ctrl-m toggles mouse capture
#if defined(MACOSX)
// Meta - Q, handled below
#elif defined(POSIX)
ev.key.keysym.sym == 'q' || // On other *nix systems, Control-Q quits
#else
ev.key.keysym.sym == 'z' || // Ctrl-z quit
#endif
ev.key.keysym.sym == 'u') // Ctrl-u toggles mute
return false;
}
// Same for other keys (Meta and Alt)
#if defined(MACOSX)
if ((mod & KMOD_META) && ev.key.keysym.sym == 'q')
return false; // On Macintosh, Cmd-Q quits
#endif
// If we reached here, this isn't an event handled by handleKeyDown(), thus
// continue normally
event.type = Common::EVENT_KEYUP;
event.kbd.keycode = SDLToOSystemKeycode(ev.key.keysym.sym);
event.kbd.ascii = mapKey(ev.key.keysym.sym, (SDLMod)ev.key.keysym.mod, 0);
// Ctrl-Alt-<key> will change the GFX mode
SDLModToOSystemKeyFlags(mod, event);
// Set the scroll lock sticky flag
if (_scrollLock)
event.kbd.flags |= Common::KBD_SCRL;
return true;
}
bool SdlEventSource::handleMouseMotion(SDL_Event &ev, Common::Event &event) {
event.type = Common::EVENT_MOUSEMOVE;
processMouseEvent(event, ev.motion.x, ev.motion.y);
return true;
}
bool SdlEventSource::handleMouseButtonDown(SDL_Event &ev, Common::Event &event) {
if (ev.button.button == SDL_BUTTON_LEFT)
event.type = Common::EVENT_LBUTTONDOWN;
else if (ev.button.button == SDL_BUTTON_RIGHT)
event.type = Common::EVENT_RBUTTONDOWN;
#if defined(SDL_BUTTON_WHEELUP) && defined(SDL_BUTTON_WHEELDOWN)
else if (ev.button.button == SDL_BUTTON_WHEELUP)
event.type = Common::EVENT_WHEELUP;
else if (ev.button.button == SDL_BUTTON_WHEELDOWN)
event.type = Common::EVENT_WHEELDOWN;
#endif
#if defined(SDL_BUTTON_MIDDLE)
else if (ev.button.button == SDL_BUTTON_MIDDLE)
event.type = Common::EVENT_MBUTTONDOWN;
#endif
else
return false;
processMouseEvent(event, ev.button.x, ev.button.y);
return true;
}
bool SdlEventSource::handleMouseButtonUp(SDL_Event &ev, Common::Event &event) {
if (ev.button.button == SDL_BUTTON_LEFT)
event.type = Common::EVENT_LBUTTONUP;
else if (ev.button.button == SDL_BUTTON_RIGHT)
event.type = Common::EVENT_RBUTTONUP;
#if defined(SDL_BUTTON_MIDDLE)
else if (ev.button.button == SDL_BUTTON_MIDDLE)
event.type = Common::EVENT_MBUTTONUP;
#endif
else
return false;
processMouseEvent(event, ev.button.x, ev.button.y);
return true;
}
bool SdlEventSource::handleJoyButtonDown(SDL_Event &ev, Common::Event &event) {
if (ev.jbutton.button == JOY_BUT_LMOUSE) {
event.type = Common::EVENT_LBUTTONDOWN;
processMouseEvent(event, _km.x, _km.y);
} else if (ev.jbutton.button == JOY_BUT_RMOUSE) {
event.type = Common::EVENT_RBUTTONDOWN;
processMouseEvent(event, _km.x, _km.y);
} else {
event.type = Common::EVENT_KEYDOWN;
switch (ev.jbutton.button) {
case JOY_BUT_ESCAPE:
event.kbd.keycode = Common::KEYCODE_ESCAPE;
event.kbd.ascii = mapKey(SDLK_ESCAPE, (SDLMod)ev.key.keysym.mod, 0);
break;
case JOY_BUT_PERIOD:
event.kbd.keycode = Common::KEYCODE_PERIOD;
event.kbd.ascii = mapKey(SDLK_PERIOD, (SDLMod)ev.key.keysym.mod, 0);
break;
case JOY_BUT_SPACE:
event.kbd.keycode = Common::KEYCODE_SPACE;
event.kbd.ascii = mapKey(SDLK_SPACE, (SDLMod)ev.key.keysym.mod, 0);
break;
case JOY_BUT_F5:
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, (SDLMod)ev.key.keysym.mod, 0);
break;
}
}
return true;
}
bool SdlEventSource::handleJoyButtonUp(SDL_Event &ev, Common::Event &event) {
if (ev.jbutton.button == JOY_BUT_LMOUSE) {
event.type = Common::EVENT_LBUTTONUP;
processMouseEvent(event, _km.x, _km.y);
} else if (ev.jbutton.button == JOY_BUT_RMOUSE) {
event.type = Common::EVENT_RBUTTONUP;
processMouseEvent(event, _km.x, _km.y);
} else {
event.type = Common::EVENT_KEYUP;
switch (ev.jbutton.button) {
case JOY_BUT_ESCAPE:
event.kbd.keycode = Common::KEYCODE_ESCAPE;
event.kbd.ascii = mapKey(SDLK_ESCAPE, (SDLMod)ev.key.keysym.mod, 0);
break;
case JOY_BUT_PERIOD:
event.kbd.keycode = Common::KEYCODE_PERIOD;
event.kbd.ascii = mapKey(SDLK_PERIOD, (SDLMod)ev.key.keysym.mod, 0);
break;
case JOY_BUT_SPACE:
event.kbd.keycode = Common::KEYCODE_SPACE;
event.kbd.ascii = mapKey(SDLK_SPACE, (SDLMod)ev.key.keysym.mod, 0);
break;
case JOY_BUT_F5:
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, (SDLMod)ev.key.keysym.mod, 0);
break;
}
}
return true;
}
bool SdlEventSource::handleJoyAxisMotion(SDL_Event &ev, Common::Event &event) {
int axis = ev.jaxis.value;
if (axis > JOY_DEADZONE) {
axis -= JOY_DEADZONE;
event.type = Common::EVENT_MOUSEMOVE;
} else if (axis < -JOY_DEADZONE) {
axis += JOY_DEADZONE;
event.type = Common::EVENT_MOUSEMOVE;
} else
axis = 0;
if (ev.jaxis.axis == JOY_XAXIS) {
#ifdef JOY_ANALOG
_km.x_vel = axis / 2000;
_km.x_down_count = 0;
#else
if (axis != 0) {
_km.x_vel = (axis > 0) ? 1:-1;
_km.x_down_count = 1;
} else {
_km.x_vel = 0;
_km.x_down_count = 0;
}
#endif
} else if (ev.jaxis.axis == JOY_YAXIS) {
#ifndef JOY_INVERT_Y
axis = -axis;
#endif
#ifdef JOY_ANALOG
_km.y_vel = -axis / 2000;
_km.y_down_count = 0;
#else
if (axis != 0) {
_km.y_vel = (-axis > 0) ? 1: -1;
_km.y_down_count = 1;
} else {
_km.y_vel = 0;
_km.y_down_count = 0;
}
#endif
}
processMouseEvent(event, _km.x, _km.y);
return true;
}
bool SdlEventSource::remapKey(SDL_Event &ev, Common::Event &event) {
#ifdef LINUPY
// On Yopy map the End button to quit
if ((ev.key.keysym.sym == 293)) {
event.type = Common::EVENT_QUIT;
return true;
}
// Map menu key to f5 (scumm menu)
if (ev.key.keysym.sym == 306) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0);
return true;
}
// Map action key to action
if (ev.key.keysym.sym == 291) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_TAB;
event.kbd.ascii = mapKey(SDLK_TAB, ev.key.keysym.mod, 0);
return true;
}
// Map OK key to skip cinematic
if (ev.key.keysym.sym == 292) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_ESCAPE;
event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0);
return true;
}
#endif
#ifdef QTOPIA
// Quit on fn+backspace on zaurus
if (ev.key.keysym.sym == 127) {
event.type = Common::EVENT_QUIT;
return true;
}
// Map menu key (f11) to f5 (scumm menu)
if (ev.key.keysym.sym == SDLK_F11) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0);
}
// Nap center (space) to tab (default action )
// I wanted to map the calendar button but the calendar comes up
//
else if (ev.key.keysym.sym == SDLK_SPACE) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_TAB;
event.kbd.ascii = mapKey(SDLK_TAB, ev.key.keysym.mod, 0);
}
// Since we stole space (pause) above we'll rebind it to the tab key on the keyboard
else if (ev.key.keysym.sym == SDLK_TAB) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_SPACE;
event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0);
} else {
// Let the events fall through if we didn't change them, this may not be the best way to
// set it up, but i'm not sure how sdl would like it if we let if fall through then redid it though.
// and yes i have an huge terminal size so i dont wrap soon enough.
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = ev.key.keysym.sym;
event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode);
}
#endif
return false;
}
void SdlEventSource::resetKeyboadEmulation(int16 x_max, int16 y_max) {
_km.x_max = x_max;
_km.y_max = y_max;
_km.delay_time = 25;
_km.last_time = 0;
}
bool SdlEventSource::handleResizeEvent(Common::Event &event, int w, int h) {
if (_graphicsManager) {
_graphicsManager->notifyResize(w, h);
// If the screen changed, send an Common::EVENT_SCREEN_CHANGED
int screenID = ((OSystem_SDL *)g_system)->getGraphicsManager()->getScreenChangeID();
if (screenID != _lastScreenID) {
_lastScreenID = screenID;
event.type = Common::EVENT_SCREEN_CHANGED;
return true;
}
}
return false;
}
uint32 SdlEventSource::obtainUnicode(const SDL_keysym keySym) {
#if SDL_VERSION_ATLEAST(2, 0, 0)
SDL_Event events[2];
// Update the event queue here to give SDL a chance to insert TEXTINPUT
// events for KEYDOWN events. Otherwise we have a high chance that on
// Windows the TEXTINPUT event is not in the event queue at this point.
// In this case we will get two events with ascii values due to mapKey
// and dispatchSDLEvent. This results in nasty double input of characters
// in the GUI.
//
// FIXME: This is all a bit fragile because in mapKey we derive the ascii
// value from the key code if no unicode value is given. This is legacy
// behavior and should be removed anyway. If that is removed, we might not
// even need to do this peeking here but instead can rely on the
// SDL_TEXTINPUT case in dispatchSDLEvent to introduce keydown/keyup with
// proper ASCII values (but with KEYCODE_INVALID as keycode).
SDL_PumpEvents();
// In SDL2, the unicode field has been removed from the keysym struct.
// Instead a SDL_TEXTINPUT event is generated on key combinations that
// generates unicode.
// Here we peek into the event queue for the event to see if it exists.
int n = SDL_PeepEvents(events, 2, SDL_PEEKEVENT, SDL_KEYDOWN, SDL_TEXTINPUT);
// Make sure that the TEXTINPUT event belongs to this KEYDOWN
// event and not another pending one.
if ((n > 0 && events[0].type == SDL_TEXTINPUT)
|| (n > 1 && events[0].type != SDL_KEYDOWN && events[1].type == SDL_TEXTINPUT)) {
// Remove the text input event we associate with the key press. This
// makes sure we never get any SDL_TEXTINPUT events which do "belong"
// to SDL_KEYDOWN events.
n = SDL_PeepEvents(events, 1, SDL_GETEVENT, SDL_TEXTINPUT, SDL_TEXTINPUT);
// This is basically a paranoia safety check because we know there
// must be a text input event in the queue.
if (n > 0) {
return convUTF8ToUTF32(events[0].text.text);
} else {
return 0;
}
} else {
return 0;
}
#else
return keySym.unicode;
#endif
}
#endif
|