SDL  2.0
SDL_keyboard.c
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4 
5  This software is provided 'as-is', without any express or implied
6  warranty. In no event will the authors be held liable for any damages
7  arising from the use of this software.
8 
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12 
13  1. The origin of this software must not be misrepresented; you must not
14  claim that you wrote the original software. If you use this software
15  in a product, an acknowledgment in the product documentation would be
16  appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18  misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20 */
21 #include "../SDL_internal.h"
22 
23 /* General keyboard handling code for SDL */
24 
25 #include "SDL_timer.h"
26 #include "SDL_events.h"
27 #include "SDL_events_c.h"
28 #include "SDL_assert.h"
29 #include "../video/SDL_sysvideo.h"
30 
31 
32 /* #define DEBUG_KEYBOARD */
33 
34 /* Global keyboard information */
35 
36 typedef struct SDL_Keyboard SDL_Keyboard;
37 
39 {
40  /* Data common to all keyboards */
45 };
46 
48 
50  0, 0, 0, 0,
51  'a',
52  'b',
53  'c',
54  'd',
55  'e',
56  'f',
57  'g',
58  'h',
59  'i',
60  'j',
61  'k',
62  'l',
63  'm',
64  'n',
65  'o',
66  'p',
67  'q',
68  'r',
69  's',
70  't',
71  'u',
72  'v',
73  'w',
74  'x',
75  'y',
76  'z',
77  '1',
78  '2',
79  '3',
80  '4',
81  '5',
82  '6',
83  '7',
84  '8',
85  '9',
86  '0',
90  SDLK_TAB,
91  SDLK_SPACE,
92  '-',
93  '=',
94  '[',
95  ']',
96  '\\',
97  '#',
98  ';',
99  '\'',
100  '`',
101  ',',
102  '.',
103  '/',
105  SDLK_F1,
106  SDLK_F2,
107  SDLK_F3,
108  SDLK_F4,
109  SDLK_F5,
110  SDLK_F6,
111  SDLK_F7,
112  SDLK_F8,
113  SDLK_F9,
114  SDLK_F10,
115  SDLK_F11,
116  SDLK_F12,
119  SDLK_PAUSE,
120  SDLK_INSERT,
121  SDLK_HOME,
122  SDLK_PAGEUP,
123  SDLK_DELETE,
124  SDLK_END,
126  SDLK_RIGHT,
127  SDLK_LEFT,
128  SDLK_DOWN,
129  SDLK_UP,
134  SDLK_KP_PLUS,
136  SDLK_KP_1,
137  SDLK_KP_2,
138  SDLK_KP_3,
139  SDLK_KP_4,
140  SDLK_KP_5,
141  SDLK_KP_6,
142  SDLK_KP_7,
143  SDLK_KP_8,
144  SDLK_KP_9,
145  SDLK_KP_0,
147  0,
149  SDLK_POWER,
151  SDLK_F13,
152  SDLK_F14,
153  SDLK_F15,
154  SDLK_F16,
155  SDLK_F17,
156  SDLK_F18,
157  SDLK_F19,
158  SDLK_F20,
159  SDLK_F21,
160  SDLK_F22,
161  SDLK_F23,
162  SDLK_F24,
163  SDLK_EXECUTE,
164  SDLK_HELP,
165  SDLK_MENU,
166  SDLK_SELECT,
167  SDLK_STOP,
168  SDLK_AGAIN,
169  SDLK_UNDO,
170  SDLK_CUT,
171  SDLK_COPY,
172  SDLK_PASTE,
173  SDLK_FIND,
174  SDLK_MUTE,
177  0, 0, 0,
180  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
182  SDLK_SYSREQ,
183  SDLK_CANCEL,
184  SDLK_CLEAR,
185  SDLK_PRIOR,
186  SDLK_RETURN2,
188  SDLK_OUT,
189  SDLK_OPER,
191  SDLK_CRSEL,
192  SDLK_EXSEL,
193  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
194  SDLK_KP_00,
195  SDLK_KP_000,
204  SDLK_KP_TAB,
206  SDLK_KP_A,
207  SDLK_KP_B,
208  SDLK_KP_C,
209  SDLK_KP_D,
210  SDLK_KP_E,
211  SDLK_KP_F,
212  SDLK_KP_XOR,
215  SDLK_KP_LESS,
222  SDLK_KP_HASH,
224  SDLK_KP_AT,
240  0, 0,
241  SDLK_LCTRL,
242  SDLK_LSHIFT,
243  SDLK_LALT,
244  SDLK_LGUI,
245  SDLK_RCTRL,
246  SDLK_RSHIFT,
247  SDLK_RALT,
248  SDLK_RGUI,
249  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
250  SDLK_MODE,
257  SDLK_WWW,
258  SDLK_MAIL,
262  SDLK_AC_HOME,
263  SDLK_AC_BACK,
265  SDLK_AC_STOP,
274  SDLK_EJECT,
275  SDLK_SLEEP,
276  SDLK_APP1,
277  SDLK_APP2,
280 };
281 
282 static const char *SDL_scancode_names[SDL_NUM_SCANCODES] = {
283  NULL, NULL, NULL, NULL,
284  "A",
285  "B",
286  "C",
287  "D",
288  "E",
289  "F",
290  "G",
291  "H",
292  "I",
293  "J",
294  "K",
295  "L",
296  "M",
297  "N",
298  "O",
299  "P",
300  "Q",
301  "R",
302  "S",
303  "T",
304  "U",
305  "V",
306  "W",
307  "X",
308  "Y",
309  "Z",
310  "1",
311  "2",
312  "3",
313  "4",
314  "5",
315  "6",
316  "7",
317  "8",
318  "9",
319  "0",
320  "Return",
321  "Escape",
322  "Backspace",
323  "Tab",
324  "Space",
325  "-",
326  "=",
327  "[",
328  "]",
329  "\\",
330  "#",
331  ";",
332  "'",
333  "`",
334  ",",
335  ".",
336  "/",
337  "CapsLock",
338  "F1",
339  "F2",
340  "F3",
341  "F4",
342  "F5",
343  "F6",
344  "F7",
345  "F8",
346  "F9",
347  "F10",
348  "F11",
349  "F12",
350  "PrintScreen",
351  "ScrollLock",
352  "Pause",
353  "Insert",
354  "Home",
355  "PageUp",
356  "Delete",
357  "End",
358  "PageDown",
359  "Right",
360  "Left",
361  "Down",
362  "Up",
363  "Numlock",
364  "Keypad /",
365  "Keypad *",
366  "Keypad -",
367  "Keypad +",
368  "Keypad Enter",
369  "Keypad 1",
370  "Keypad 2",
371  "Keypad 3",
372  "Keypad 4",
373  "Keypad 5",
374  "Keypad 6",
375  "Keypad 7",
376  "Keypad 8",
377  "Keypad 9",
378  "Keypad 0",
379  "Keypad .",
380  NULL,
381  "Application",
382  "Power",
383  "Keypad =",
384  "F13",
385  "F14",
386  "F15",
387  "F16",
388  "F17",
389  "F18",
390  "F19",
391  "F20",
392  "F21",
393  "F22",
394  "F23",
395  "F24",
396  "Execute",
397  "Help",
398  "Menu",
399  "Select",
400  "Stop",
401  "Again",
402  "Undo",
403  "Cut",
404  "Copy",
405  "Paste",
406  "Find",
407  "Mute",
408  "VolumeUp",
409  "VolumeDown",
410  NULL, NULL, NULL,
411  "Keypad ,",
412  "Keypad = (AS400)",
414  NULL, NULL, NULL, NULL, NULL, NULL,
415  "AltErase",
416  "SysReq",
417  "Cancel",
418  "Clear",
419  "Prior",
420  "Return",
421  "Separator",
422  "Out",
423  "Oper",
424  "Clear / Again",
425  "CrSel",
426  "ExSel",
428  "Keypad 00",
429  "Keypad 000",
430  "ThousandsSeparator",
431  "DecimalSeparator",
432  "CurrencyUnit",
433  "CurrencySubUnit",
434  "Keypad (",
435  "Keypad )",
436  "Keypad {",
437  "Keypad }",
438  "Keypad Tab",
439  "Keypad Backspace",
440  "Keypad A",
441  "Keypad B",
442  "Keypad C",
443  "Keypad D",
444  "Keypad E",
445  "Keypad F",
446  "Keypad XOR",
447  "Keypad ^",
448  "Keypad %",
449  "Keypad <",
450  "Keypad >",
451  "Keypad &",
452  "Keypad &&",
453  "Keypad |",
454  "Keypad ||",
455  "Keypad :",
456  "Keypad #",
457  "Keypad Space",
458  "Keypad @",
459  "Keypad !",
460  "Keypad MemStore",
461  "Keypad MemRecall",
462  "Keypad MemClear",
463  "Keypad MemAdd",
464  "Keypad MemSubtract",
465  "Keypad MemMultiply",
466  "Keypad MemDivide",
467  "Keypad +/-",
468  "Keypad Clear",
469  "Keypad ClearEntry",
470  "Keypad Binary",
471  "Keypad Octal",
472  "Keypad Decimal",
473  "Keypad Hexadecimal",
474  NULL, NULL,
475  "Left Ctrl",
476  "Left Shift",
477  "Left Alt",
478  "Left GUI",
479  "Right Ctrl",
480  "Right Shift",
481  "Right Alt",
482  "Right GUI",
485  NULL,
486  "ModeSwitch",
487  "AudioNext",
488  "AudioPrev",
489  "AudioStop",
490  "AudioPlay",
491  "AudioMute",
492  "MediaSelect",
493  "WWW",
494  "Mail",
495  "Calculator",
496  "Computer",
497  "AC Search",
498  "AC Home",
499  "AC Back",
500  "AC Forward",
501  "AC Stop",
502  "AC Refresh",
503  "AC Bookmarks",
504  "BrightnessDown",
505  "BrightnessUp",
506  "DisplaySwitch",
507  "KBDIllumToggle",
508  "KBDIllumDown",
509  "KBDIllumUp",
510  "Eject",
511  "Sleep",
512  "App1",
513  "App2",
514  "AudioRewind",
515  "AudioFastForward",
516 };
517 
518 /* Taken from SDL_iconv() */
519 char *
521 {
522  Uint8 *p = (Uint8 *) dst;
523  if (ch <= 0x7F) {
524  *p = (Uint8) ch;
525  ++dst;
526  } else if (ch <= 0x7FF) {
527  p[0] = 0xC0 | (Uint8) ((ch >> 6) & 0x1F);
528  p[1] = 0x80 | (Uint8) (ch & 0x3F);
529  dst += 2;
530  } else if (ch <= 0xFFFF) {
531  p[0] = 0xE0 | (Uint8) ((ch >> 12) & 0x0F);
532  p[1] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
533  p[2] = 0x80 | (Uint8) (ch & 0x3F);
534  dst += 3;
535  } else if (ch <= 0x1FFFFF) {
536  p[0] = 0xF0 | (Uint8) ((ch >> 18) & 0x07);
537  p[1] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
538  p[2] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
539  p[3] = 0x80 | (Uint8) (ch & 0x3F);
540  dst += 4;
541  } else if (ch <= 0x3FFFFFF) {
542  p[0] = 0xF8 | (Uint8) ((ch >> 24) & 0x03);
543  p[1] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
544  p[2] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
545  p[3] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
546  p[4] = 0x80 | (Uint8) (ch & 0x3F);
547  dst += 5;
548  } else {
549  p[0] = 0xFC | (Uint8) ((ch >> 30) & 0x01);
550  p[1] = 0x80 | (Uint8) ((ch >> 24) & 0x3F);
551  p[2] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
552  p[3] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
553  p[4] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
554  p[5] = 0x80 | (Uint8) (ch & 0x3F);
555  dst += 6;
556  }
557  return dst;
558 }
559 
560 /* Public functions */
561 int
563 {
564  SDL_Keyboard *keyboard = &SDL_keyboard;
565 
566  /* Set the default keymap */
568  return (0);
569 }
570 
571 void
573 {
574  SDL_Keyboard *keyboard = &SDL_keyboard;
575  SDL_Scancode scancode;
576 
577 #ifdef DEBUG_KEYBOARD
578  printf("Resetting keyboard\n");
579 #endif
580  for (scancode = (SDL_Scancode) 0; scancode < SDL_NUM_SCANCODES; ++scancode) {
581  if (keyboard->keystate[scancode] == SDL_PRESSED) {
583  }
584  }
585 }
586 
587 void
589 {
591 }
592 
593 void
595 {
596  SDL_Keyboard *keyboard = &SDL_keyboard;
597  SDL_Scancode scancode;
598 
600  return;
601  }
602 
603  SDL_memcpy(&keyboard->keymap[start], keys, sizeof(*keys) * length);
604 
605  /* The number key scancodes always map to the number key keycodes.
606  * On AZERTY layouts these technically are symbols, but users (and games)
607  * always think of them and view them in UI as number keys.
608  */
609  keyboard->keymap[SDL_SCANCODE_0] = SDLK_0;
610  for (scancode = SDL_SCANCODE_1; scancode <= SDL_SCANCODE_9; ++scancode) {
611  keyboard->keymap[scancode] = SDLK_1 + (scancode - SDL_SCANCODE_1);
612  }
613 }
614 
615 void
616 SDL_SetScancodeName(SDL_Scancode scancode, const char *name)
617 {
618  SDL_scancode_names[scancode] = name;
619 }
620 
621 SDL_Window *
623 {
624  SDL_Keyboard *keyboard = &SDL_keyboard;
625 
626  return keyboard->focus;
627 }
628 
629 void
631 {
632  SDL_Keyboard *keyboard = &SDL_keyboard;
633 
634  if (keyboard->focus && !window) {
635  /* We won't get anymore keyboard messages, so reset keyboard state */
637  }
638 
639  /* See if the current window has lost focus */
640  if (keyboard->focus && keyboard->focus != window) {
641 
642  /* new window shouldn't think it has mouse captured. */
643  SDL_assert(!window || !(window->flags & SDL_WINDOW_MOUSE_CAPTURE));
644 
645  /* old window must lose an existing mouse capture. */
646  if (keyboard->focus->flags & SDL_WINDOW_MOUSE_CAPTURE) {
647  SDL_CaptureMouse(SDL_FALSE); /* drop the capture. */
649  }
650 
652  0, 0);
653 
654  /* Ensures IME compositions are committed */
657  if (video && video->StopTextInput) {
658  video->StopTextInput(video);
659  }
660  }
661  }
662 
663  keyboard->focus = window;
664 
665  if (keyboard->focus) {
667  0, 0);
668 
671  if (video && video->StartTextInput) {
672  video->StartTextInput(video);
673  }
674  }
675  }
676 }
677 
678 int
680 {
681  SDL_Keyboard *keyboard = &SDL_keyboard;
682  int posted;
683  SDL_Keymod modifier;
684  SDL_Keycode keycode;
685  Uint32 type;
686  Uint8 repeat;
687 
688  if (!scancode) {
689  return 0;
690  }
691 #ifdef DEBUG_KEYBOARD
692  printf("The '%s' key has been %s\n", SDL_GetScancodeName(scancode),
693  state == SDL_PRESSED ? "pressed" : "released");
694 #endif
695 
696  /* Figure out what type of event this is */
697  switch (state) {
698  case SDL_PRESSED:
699  type = SDL_KEYDOWN;
700  break;
701  case SDL_RELEASED:
702  type = SDL_KEYUP;
703  break;
704  default:
705  /* Invalid state -- bail */
706  return 0;
707  }
708 
709  /* Drop events that don't change state */
710  repeat = (state && keyboard->keystate[scancode]);
711  if (keyboard->keystate[scancode] == state && !repeat) {
712 #if 0
713  printf("Keyboard event didn't change state - dropped!\n");
714 #endif
715  return 0;
716  }
717 
718  /* Update internal keyboard state */
719  keyboard->keystate[scancode] = state;
720 
721  keycode = keyboard->keymap[scancode];
722 
723  /* Update modifiers state if applicable */
724  switch (keycode) {
725  case SDLK_LCTRL:
726  modifier = KMOD_LCTRL;
727  break;
728  case SDLK_RCTRL:
729  modifier = KMOD_RCTRL;
730  break;
731  case SDLK_LSHIFT:
732  modifier = KMOD_LSHIFT;
733  break;
734  case SDLK_RSHIFT:
735  modifier = KMOD_RSHIFT;
736  break;
737  case SDLK_LALT:
738  modifier = KMOD_LALT;
739  break;
740  case SDLK_RALT:
741  modifier = KMOD_RALT;
742  break;
743  case SDLK_LGUI:
744  modifier = KMOD_LGUI;
745  break;
746  case SDLK_RGUI:
747  modifier = KMOD_RGUI;
748  break;
749  case SDLK_MODE:
750  modifier = KMOD_MODE;
751  break;
752  default:
753  modifier = KMOD_NONE;
754  break;
755  }
756  if (SDL_KEYDOWN == type) {
757  switch (keycode) {
758  case SDLK_NUMLOCKCLEAR:
759  keyboard->modstate ^= KMOD_NUM;
760  break;
761  case SDLK_CAPSLOCK:
762  keyboard->modstate ^= KMOD_CAPS;
763  break;
764  default:
765  keyboard->modstate |= modifier;
766  break;
767  }
768  } else {
769  keyboard->modstate &= ~modifier;
770  }
771 
772  /* Post the event, if desired */
773  posted = 0;
774  if (SDL_GetEventState(type) == SDL_ENABLE) {
776  event.key.type = type;
777  event.key.state = state;
778  event.key.repeat = repeat;
779  event.key.keysym.scancode = scancode;
780  event.key.keysym.sym = keycode;
781  event.key.keysym.mod = keyboard->modstate;
782  event.key.windowID = keyboard->focus ? keyboard->focus->id : 0;
783  posted = (SDL_PushEvent(&event) > 0);
784  }
785  return (posted);
786 }
787 
788 int
790 {
791  SDL_Keyboard *keyboard = &SDL_keyboard;
792  int posted;
793 
794  /* Don't post text events for unprintable characters */
795  if ((unsigned char)*text < ' ' || *text == 127) {
796  return 0;
797  }
798 
799  /* Post the event, if desired */
800  posted = 0;
803  event.text.type = SDL_TEXTINPUT;
804  event.text.windowID = keyboard->focus ? keyboard->focus->id : 0;
805  SDL_utf8strlcpy(event.text.text, text, SDL_arraysize(event.text.text));
806  posted = (SDL_PushEvent(&event) > 0);
807  }
808  return (posted);
809 }
810 
811 int
812 SDL_SendEditingText(const char *text, int start, int length)
813 {
814  SDL_Keyboard *keyboard = &SDL_keyboard;
815  int posted;
816 
817  /* Post the event, if desired */
818  posted = 0;
821  event.edit.type = SDL_TEXTEDITING;
822  event.edit.windowID = keyboard->focus ? keyboard->focus->id : 0;
823  event.edit.start = start;
824  event.edit.length = length;
825  SDL_utf8strlcpy(event.edit.text, text, SDL_arraysize(event.edit.text));
826  posted = (SDL_PushEvent(&event) > 0);
827  }
828  return (posted);
829 }
830 
831 void
833 {
834 }
835 
836 const Uint8 *
837 SDL_GetKeyboardState(int *numkeys)
838 {
839  SDL_Keyboard *keyboard = &SDL_keyboard;
840 
841  if (numkeys != (int *) 0) {
842  *numkeys = SDL_NUM_SCANCODES;
843  }
844  return keyboard->keystate;
845 }
846 
849 {
850  SDL_Keyboard *keyboard = &SDL_keyboard;
851 
852  return (SDL_Keymod) keyboard->modstate;
853 }
854 
855 void
857 {
858  SDL_Keyboard *keyboard = &SDL_keyboard;
859 
860  keyboard->modstate = modstate;
861 }
862 
863 /* Note that SDL_ToggleModState() is not a public API. SDL_SetModState() is. */
864 void
866 {
867  SDL_Keyboard *keyboard = &SDL_keyboard;
868  if (toggle) {
869  keyboard->modstate |= modstate;
870  } else {
871  keyboard->modstate &= ~modstate;
872  }
873 }
874 
875 
878 {
879  SDL_Keyboard *keyboard = &SDL_keyboard;
880 
881  if (((int)scancode) < ((int)SDL_SCANCODE_UNKNOWN) || scancode >= SDL_NUM_SCANCODES) {
882  SDL_InvalidParamError("scancode");
883  return 0;
884  }
885 
886  return keyboard->keymap[scancode];
887 }
888 
891 {
892  SDL_Keyboard *keyboard = &SDL_keyboard;
893  SDL_Scancode scancode;
894 
895  for (scancode = SDL_SCANCODE_UNKNOWN; scancode < SDL_NUM_SCANCODES;
896  ++scancode) {
897  if (keyboard->keymap[scancode] == key) {
898  return scancode;
899  }
900  }
901  return SDL_SCANCODE_UNKNOWN;
902 }
903 
904 const char *
906 {
907  const char *name;
908  if (((int)scancode) < ((int)SDL_SCANCODE_UNKNOWN) || scancode >= SDL_NUM_SCANCODES) {
909  SDL_InvalidParamError("scancode");
910  return "";
911  }
912 
913  name = SDL_scancode_names[scancode];
914  if (name)
915  return name;
916  else
917  return "";
918 }
919 
921 {
922  int i;
923 
924  if (!name || !*name) {
925  SDL_InvalidParamError("name");
926  return SDL_SCANCODE_UNKNOWN;
927  }
928 
929  for (i = 0; i < SDL_arraysize(SDL_scancode_names); ++i) {
930  if (!SDL_scancode_names[i]) {
931  continue;
932  }
933  if (SDL_strcasecmp(name, SDL_scancode_names[i]) == 0) {
934  return (SDL_Scancode)i;
935  }
936  }
937 
938  SDL_InvalidParamError("name");
939  return SDL_SCANCODE_UNKNOWN;
940 }
941 
942 const char *
944 {
945  static char name[8];
946  char *end;
947 
948  if (key & SDLK_SCANCODE_MASK) {
949  return
950  SDL_GetScancodeName((SDL_Scancode) (key & ~SDLK_SCANCODE_MASK));
951  }
952 
953  switch (key) {
954  case SDLK_RETURN:
956  case SDLK_ESCAPE:
958  case SDLK_BACKSPACE:
960  case SDLK_TAB:
962  case SDLK_SPACE:
964  case SDLK_DELETE:
966  default:
967  /* Unaccented letter keys on latin keyboards are normally
968  labeled in upper case (and probably on others like Greek or
969  Cyrillic too, so if you happen to know for sure, please
970  adapt this). */
971  if (key >= 'a' && key <= 'z') {
972  key -= 32;
973  }
974 
975  end = SDL_UCS4ToUTF8((Uint32) key, name);
976  *end = '\0';
977  return name;
978  }
979 }
980 
983 {
985 
986  /* Check input */
987  if (name == NULL) {
988  return SDLK_UNKNOWN;
989  }
990 
991  /* If it's a single UTF-8 character, then that's the keycode itself */
992  key = *(const unsigned char *)name;
993  if (key >= 0xF0) {
994  if (SDL_strlen(name) == 4) {
995  int i = 0;
996  key = (Uint16)(name[i]&0x07) << 18;
997  key |= (Uint16)(name[++i]&0x3F) << 12;
998  key |= (Uint16)(name[++i]&0x3F) << 6;
999  key |= (Uint16)(name[++i]&0x3F);
1000  return key;
1001  }
1002  return SDLK_UNKNOWN;
1003  } else if (key >= 0xE0) {
1004  if (SDL_strlen(name) == 3) {
1005  int i = 0;
1006  key = (Uint16)(name[i]&0x0F) << 12;
1007  key |= (Uint16)(name[++i]&0x3F) << 6;
1008  key |= (Uint16)(name[++i]&0x3F);
1009  return key;
1010  }
1011  return SDLK_UNKNOWN;
1012  } else if (key >= 0xC0) {
1013  if (SDL_strlen(name) == 2) {
1014  int i = 0;
1015  key = (Uint16)(name[i]&0x1F) << 6;
1016  key |= (Uint16)(name[++i]&0x3F);
1017  return key;
1018  }
1019  return SDLK_UNKNOWN;
1020  } else {
1021  if (SDL_strlen(name) == 1) {
1022  if (key >= 'A' && key <= 'Z') {
1023  key += 32;
1024  }
1025  return key;
1026  }
1027 
1028  /* Get the scancode for this name, and the associated keycode */
1030  }
1031 }
1032 
1033 /* vi: set ts=4 sw=4 expandtab: */
void SDL_GetDefaultKeymap(SDL_Keycode *keymap)
Definition: SDL_keyboard.c:588
void SDL_SetKeyboardFocus(SDL_Window *window)
Definition: SDL_keyboard.c:630
GLenum GLenum dst
GLuint GLuint end
Definition: SDL_opengl.h:1571
struct xkb_state * state
GLfloat GLfloat p
#define SDL_utf8strlcpy
#define SDL_ENABLE
Definition: SDL_events.h:722
#define SDLK_SCANCODE_MASK
Definition: SDL_keycode.h:47
void(* StartTextInput)(_THIS)
Definition: SDL_sysvideo.h:286
GLuint start
Definition: SDL_opengl.h:1571
SDL_Keycode keymap[SDL_NUM_SCANCODES]
Definition: SDL_keyboard.c:44
SDL_Keycode SDL_GetKeyFromName(const char *name)
Get a key code from a human-readable name.
Definition: SDL_keyboard.c:982
int SDL_SendWindowEvent(SDL_Window *window, Uint8 windowevent, int data1, int data2)
int SDL_KeyboardInit(void)
Definition: SDL_keyboard.c:562
uint32_t Uint32
Definition: SDL_stdinc.h:181
#define SDL_InvalidParamError(param)
Definition: SDL_error.h:54
#define SDL_strcasecmp
Sint32 SDL_Keycode
The SDL virtual key representation.
Definition: SDL_keycode.h:45
SDL_Keycode SDL_GetKeyFromScancode(SDL_Scancode scancode)
Get the key code corresponding to the given scancode according to the current keyboard layout...
Definition: SDL_keyboard.c:877
GLuint const GLchar * name
int SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode)
Definition: SDL_keyboard.c:679
void SDL_SetKeymap(int start, SDL_Keycode *keys, int length)
Definition: SDL_keyboard.c:594
Uint16 modstate
Definition: SDL_keyboard.c:42
static const char * SDL_scancode_names[SDL_NUM_SCANCODES]
Definition: SDL_keyboard.c:282
const Uint8 * SDL_GetKeyboardState(int *numkeys)
Get a snapshot of the current state of the keyboard.
Definition: SDL_keyboard.c:837
#define SDL_memcpy
SDL_TextInputEvent text
Definition: SDL_events.h:532
char text[SDL_TEXTINPUTEVENT_TEXT_SIZE]
Definition: SDL_events.h:226
void SDL_SetModState(SDL_Keymod modstate)
Set the current key modifier state for the keyboard.
Definition: SDL_keyboard.c:856
GLuint64 key
Definition: gl2ext.h:2192
#define SDL_GetEventState(type)
Definition: SDL_events.h:735
SDL_Scancode SDL_GetScancodeFromName(const char *name)
Get a scancode from a human-readable name.
Definition: SDL_keyboard.c:920
uint8_t Uint8
Definition: SDL_stdinc.h:157
int SDL_SendKeyboardText(const char *text)
Definition: SDL_keyboard.c:789
struct _cl_event * event
SDL_Keymod SDL_GetModState(void)
Get the current key modifier state for the keyboard.
Definition: SDL_keyboard.c:848
#define SDL_PushEvent
const char * SDL_GetScancodeName(SDL_Scancode scancode)
Get a human-readable name for a scancode.
Definition: SDL_keyboard.c:905
static const SDL_Keycode SDL_default_keymap[SDL_NUM_SCANCODES]
Definition: SDL_keyboard.c:49
char text[SDL_TEXTEDITINGEVENT_TEXT_SIZE]
Definition: SDL_events.h:211
void(* StopTextInput)(_THIS)
Definition: SDL_sysvideo.h:287
SDL_Scancode SDL_GetScancodeFromKey(SDL_Keycode key)
Get the scancode corresponding to the given key code according to the current keyboard layout...
Definition: SDL_keyboard.c:890
void SDL_SetScancodeName(SDL_Scancode scancode, const char *name)
Definition: SDL_keyboard.c:616
void SDL_KeyboardQuit(void)
Definition: SDL_keyboard.c:832
SDL_Keymod
Enumeration of valid key mods (possibly OR&#39;d together).
Definition: SDL_keycode.h:325
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
void SDL_ToggleModState(const SDL_Keymod modstate, const SDL_bool toggle)
Definition: SDL_keyboard.c:865
#define SDL_assert(condition)
Definition: SDL_assert.h:169
#define NULL
Definition: begin_code.h:164
SDL_bool
Definition: SDL_stdinc.h:139
SDL_TextEditingEvent edit
Definition: SDL_events.h:531
char * SDL_UCS4ToUTF8(Uint32 ch, char *dst)
Definition: SDL_keyboard.c:520
static char text[MAX_TEXT_LENGTH]
Definition: testime.c:47
SDL_Window * focus
Definition: SDL_keyboard.c:41
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
#define SDL_strlen
The type used to identify a window.
Definition: SDL_sysvideo.h:73
#define SDL_EventState
void SDL_ResetKeyboard(void)
Definition: SDL_keyboard.c:572
static SDL_Keyboard SDL_keyboard
Definition: SDL_keyboard.c:47
Uint32 id
Definition: SDL_sysvideo.h:76
#define SDL_CaptureMouse
uint16_t Uint16
Definition: SDL_stdinc.h:169
GLuint GLuint GLsizei GLenum type
Definition: SDL_opengl.h:1571
SDL_VideoDevice * SDL_GetVideoDevice(void)
Definition: SDL_video.c:586
SDL_Window * SDL_GetKeyboardFocus(void)
Get the window which currently has keyboard focus.
Definition: SDL_keyboard.c:622
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:93
General event structure.
Definition: SDL_events.h:525
#define SDL_PRESSED
Definition: SDL_events.h:50
#define SDL_QUERY
Definition: SDL_events.h:719
const char * SDL_GetKeyName(SDL_Keycode key)
Get a human-readable name for a key.
Definition: SDL_keyboard.c:943
GLuint GLsizei GLsizei * length
Uint8 keystate[SDL_NUM_SCANCODES]
Definition: SDL_keyboard.c:43
Uint32 flags
Definition: SDL_sysvideo.h:83
#define SDL_RELEASED
Definition: SDL_events.h:49
SDL_Scancode
The SDL keyboard scancode representation.
Definition: SDL_scancode.h:43
int SDL_SendEditingText(const char *text, int start, int length)
Definition: SDL_keyboard.c:812