src/events/SDL_keyboard.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 04 Feb 2006 08:35:11 +0000
changeset 1327 d12a63a8d95a
parent 1312 c9b51268668f
child 1330 450721ad5436
permissions -rw-r--r--
Resolved bug #130
Use XFilterEvent() to handle dead-key composition under X11
Cleaned up the code in preparation for 1.3 API changes
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2006 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 
    23 /* General keyboard handling code for SDL */
    24 
    25 #include <stdio.h>
    26 #include <ctype.h>
    27 #include <stdlib.h>
    28 #include <string.h>
    29 
    30 #include "SDL_error.h"
    31 #include "SDL_events.h"
    32 #include "SDL_timer.h"
    33 #include "SDL_events_c.h"
    34 #include "SDL_sysevents.h"
    35 
    36 
    37 /* Global keystate information */
    38 static Uint8  SDL_KeyState[SDLK_LAST];
    39 static SDLMod SDL_ModState;
    40 int SDL_TranslateUNICODE = 0;
    41 
    42 static char *keynames[SDLK_LAST];	/* Array of keycode names */
    43 
    44 /*
    45  * jk 991215 - added
    46  */
    47 struct {
    48 	int firsttime;    /* if we check against the delay or repeat value */
    49 	int delay;        /* the delay before we start repeating */
    50 	int interval;     /* the delay between key repeat events */
    51 	Uint32 timestamp; /* the time the first keydown event occurred */
    52 
    53 	SDL_Event evt;    /* the event we are supposed to repeat */
    54 } SDL_KeyRepeat;
    55 
    56 /* Public functions */
    57 int SDL_KeyboardInit(void)
    58 {
    59 	SDL_VideoDevice *video = current_video;
    60 	SDL_VideoDevice *this  = current_video;
    61 	Uint16 i;
    62 
    63 	/* Set default mode of UNICODE translation */
    64 	SDL_EnableUNICODE(DEFAULT_UNICODE_TRANSLATION);
    65 
    66 	/* Initialize the tables */
    67 	SDL_ModState = KMOD_NONE;
    68 	for ( i=0; i<SDL_TABLESIZE(keynames); ++i )
    69 		keynames[i] = NULL;
    70 	for ( i=0; i<SDL_TABLESIZE(SDL_KeyState); ++i )
    71 		SDL_KeyState[i] = SDL_RELEASED;
    72 	video->InitOSKeymap(this);
    73 
    74 	SDL_EnableKeyRepeat(0, 0);
    75 
    76 	/* Fill in the blanks in keynames */
    77 	keynames[SDLK_BACKSPACE] = "backspace";
    78 	keynames[SDLK_TAB] = "tab";
    79 	keynames[SDLK_CLEAR] = "clear";
    80 	keynames[SDLK_RETURN] = "return";
    81 	keynames[SDLK_PAUSE] = "pause";
    82 	keynames[SDLK_ESCAPE] = "escape";
    83 	keynames[SDLK_SPACE] = "space";
    84 	keynames[SDLK_EXCLAIM]  = "!";
    85 	keynames[SDLK_QUOTEDBL]  = "\"";
    86 	keynames[SDLK_HASH]  = "#";
    87 	keynames[SDLK_DOLLAR]  = "$";
    88 	keynames[SDLK_AMPERSAND]  = "&";
    89 	keynames[SDLK_QUOTE] = "'";
    90 	keynames[SDLK_LEFTPAREN] = "(";
    91 	keynames[SDLK_RIGHTPAREN] = ")";
    92 	keynames[SDLK_ASTERISK] = "*";
    93 	keynames[SDLK_PLUS] = "+";
    94 	keynames[SDLK_COMMA] = ",";
    95 	keynames[SDLK_MINUS] = "-";
    96 	keynames[SDLK_PERIOD] = ".";
    97 	keynames[SDLK_SLASH] = "/";
    98 	keynames[SDLK_0] = "0";
    99 	keynames[SDLK_1] = "1";
   100 	keynames[SDLK_2] = "2";
   101 	keynames[SDLK_3] = "3";
   102 	keynames[SDLK_4] = "4";
   103 	keynames[SDLK_5] = "5";
   104 	keynames[SDLK_6] = "6";
   105 	keynames[SDLK_7] = "7";
   106 	keynames[SDLK_8] = "8";
   107 	keynames[SDLK_9] = "9";
   108 	keynames[SDLK_COLON] = ":";
   109 	keynames[SDLK_SEMICOLON] = ";";
   110 	keynames[SDLK_LESS] = "<";
   111 	keynames[SDLK_EQUALS] = "=";
   112 	keynames[SDLK_GREATER] = ">";
   113 	keynames[SDLK_QUESTION] = "?";
   114 	keynames[SDLK_AT] = "@";
   115 	keynames[SDLK_LEFTBRACKET] = "[";
   116 	keynames[SDLK_BACKSLASH] = "\\";
   117 	keynames[SDLK_RIGHTBRACKET] = "]";
   118 	keynames[SDLK_CARET] = "^";
   119 	keynames[SDLK_UNDERSCORE] = "_";
   120 	keynames[SDLK_BACKQUOTE] = "`";
   121 	keynames[SDLK_a] = "a";
   122 	keynames[SDLK_b] = "b";
   123 	keynames[SDLK_c] = "c";
   124 	keynames[SDLK_d] = "d";
   125 	keynames[SDLK_e] = "e";
   126 	keynames[SDLK_f] = "f";
   127 	keynames[SDLK_g] = "g";
   128 	keynames[SDLK_h] = "h";
   129 	keynames[SDLK_i] = "i";
   130 	keynames[SDLK_j] = "j";
   131 	keynames[SDLK_k] = "k";
   132 	keynames[SDLK_l] = "l";
   133 	keynames[SDLK_m] = "m";
   134 	keynames[SDLK_n] = "n";
   135 	keynames[SDLK_o] = "o";
   136 	keynames[SDLK_p] = "p";
   137 	keynames[SDLK_q] = "q";
   138 	keynames[SDLK_r] = "r";
   139 	keynames[SDLK_s] = "s";
   140 	keynames[SDLK_t] = "t";
   141 	keynames[SDLK_u] = "u";
   142 	keynames[SDLK_v] = "v";
   143 	keynames[SDLK_w] = "w";
   144 	keynames[SDLK_x] = "x";
   145 	keynames[SDLK_y] = "y";
   146 	keynames[SDLK_z] = "z";
   147 	keynames[SDLK_DELETE] = "delete";
   148 
   149 	keynames[SDLK_WORLD_0] = "world 0";
   150 	keynames[SDLK_WORLD_1] = "world 1";
   151 	keynames[SDLK_WORLD_2] = "world 2";
   152 	keynames[SDLK_WORLD_3] = "world 3";
   153 	keynames[SDLK_WORLD_4] = "world 4";
   154 	keynames[SDLK_WORLD_5] = "world 5";
   155 	keynames[SDLK_WORLD_6] = "world 6";
   156 	keynames[SDLK_WORLD_7] = "world 7";
   157 	keynames[SDLK_WORLD_8] = "world 8";
   158 	keynames[SDLK_WORLD_9] = "world 9";
   159 	keynames[SDLK_WORLD_10] = "world 10";
   160 	keynames[SDLK_WORLD_11] = "world 11";
   161 	keynames[SDLK_WORLD_12] = "world 12";
   162 	keynames[SDLK_WORLD_13] = "world 13";
   163 	keynames[SDLK_WORLD_14] = "world 14";
   164 	keynames[SDLK_WORLD_15] = "world 15";
   165 	keynames[SDLK_WORLD_16] = "world 16";
   166 	keynames[SDLK_WORLD_17] = "world 17";
   167 	keynames[SDLK_WORLD_18] = "world 18";
   168 	keynames[SDLK_WORLD_19] = "world 19";
   169 	keynames[SDLK_WORLD_20] = "world 20";
   170 	keynames[SDLK_WORLD_21] = "world 21";
   171 	keynames[SDLK_WORLD_22] = "world 22";
   172 	keynames[SDLK_WORLD_23] = "world 23";
   173 	keynames[SDLK_WORLD_24] = "world 24";
   174 	keynames[SDLK_WORLD_25] = "world 25";
   175 	keynames[SDLK_WORLD_26] = "world 26";
   176 	keynames[SDLK_WORLD_27] = "world 27";
   177 	keynames[SDLK_WORLD_28] = "world 28";
   178 	keynames[SDLK_WORLD_29] = "world 29";
   179 	keynames[SDLK_WORLD_30] = "world 30";
   180 	keynames[SDLK_WORLD_31] = "world 31";
   181 	keynames[SDLK_WORLD_32] = "world 32";
   182 	keynames[SDLK_WORLD_33] = "world 33";
   183 	keynames[SDLK_WORLD_34] = "world 34";
   184 	keynames[SDLK_WORLD_35] = "world 35";
   185 	keynames[SDLK_WORLD_36] = "world 36";
   186 	keynames[SDLK_WORLD_37] = "world 37";
   187 	keynames[SDLK_WORLD_38] = "world 38";
   188 	keynames[SDLK_WORLD_39] = "world 39";
   189 	keynames[SDLK_WORLD_40] = "world 40";
   190 	keynames[SDLK_WORLD_41] = "world 41";
   191 	keynames[SDLK_WORLD_42] = "world 42";
   192 	keynames[SDLK_WORLD_43] = "world 43";
   193 	keynames[SDLK_WORLD_44] = "world 44";
   194 	keynames[SDLK_WORLD_45] = "world 45";
   195 	keynames[SDLK_WORLD_46] = "world 46";
   196 	keynames[SDLK_WORLD_47] = "world 47";
   197 	keynames[SDLK_WORLD_48] = "world 48";
   198 	keynames[SDLK_WORLD_49] = "world 49";
   199 	keynames[SDLK_WORLD_50] = "world 50";
   200 	keynames[SDLK_WORLD_51] = "world 51";
   201 	keynames[SDLK_WORLD_52] = "world 52";
   202 	keynames[SDLK_WORLD_53] = "world 53";
   203 	keynames[SDLK_WORLD_54] = "world 54";
   204 	keynames[SDLK_WORLD_55] = "world 55";
   205 	keynames[SDLK_WORLD_56] = "world 56";
   206 	keynames[SDLK_WORLD_57] = "world 57";
   207 	keynames[SDLK_WORLD_58] = "world 58";
   208 	keynames[SDLK_WORLD_59] = "world 59";
   209 	keynames[SDLK_WORLD_60] = "world 60";
   210 	keynames[SDLK_WORLD_61] = "world 61";
   211 	keynames[SDLK_WORLD_62] = "world 62";
   212 	keynames[SDLK_WORLD_63] = "world 63";
   213 	keynames[SDLK_WORLD_64] = "world 64";
   214 	keynames[SDLK_WORLD_65] = "world 65";
   215 	keynames[SDLK_WORLD_66] = "world 66";
   216 	keynames[SDLK_WORLD_67] = "world 67";
   217 	keynames[SDLK_WORLD_68] = "world 68";
   218 	keynames[SDLK_WORLD_69] = "world 69";
   219 	keynames[SDLK_WORLD_70] = "world 70";
   220 	keynames[SDLK_WORLD_71] = "world 71";
   221 	keynames[SDLK_WORLD_72] = "world 72";
   222 	keynames[SDLK_WORLD_73] = "world 73";
   223 	keynames[SDLK_WORLD_74] = "world 74";
   224 	keynames[SDLK_WORLD_75] = "world 75";
   225 	keynames[SDLK_WORLD_76] = "world 76";
   226 	keynames[SDLK_WORLD_77] = "world 77";
   227 	keynames[SDLK_WORLD_78] = "world 78";
   228 	keynames[SDLK_WORLD_79] = "world 79";
   229 	keynames[SDLK_WORLD_80] = "world 80";
   230 	keynames[SDLK_WORLD_81] = "world 81";
   231 	keynames[SDLK_WORLD_82] = "world 82";
   232 	keynames[SDLK_WORLD_83] = "world 83";
   233 	keynames[SDLK_WORLD_84] = "world 84";
   234 	keynames[SDLK_WORLD_85] = "world 85";
   235 	keynames[SDLK_WORLD_86] = "world 86";
   236 	keynames[SDLK_WORLD_87] = "world 87";
   237 	keynames[SDLK_WORLD_88] = "world 88";
   238 	keynames[SDLK_WORLD_89] = "world 89";
   239 	keynames[SDLK_WORLD_90] = "world 90";
   240 	keynames[SDLK_WORLD_91] = "world 91";
   241 	keynames[SDLK_WORLD_92] = "world 92";
   242 	keynames[SDLK_WORLD_93] = "world 93";
   243 	keynames[SDLK_WORLD_94] = "world 94";
   244 	keynames[SDLK_WORLD_95] = "world 95";
   245 
   246 	keynames[SDLK_KP0] = "[0]";
   247 	keynames[SDLK_KP1] = "[1]";
   248 	keynames[SDLK_KP2] = "[2]";
   249 	keynames[SDLK_KP3] = "[3]";
   250 	keynames[SDLK_KP4] = "[4]";
   251 	keynames[SDLK_KP5] = "[5]";
   252 	keynames[SDLK_KP6] = "[6]";
   253 	keynames[SDLK_KP7] = "[7]";
   254 	keynames[SDLK_KP8] = "[8]";
   255 	keynames[SDLK_KP9] = "[9]";
   256 	keynames[SDLK_KP_PERIOD] = "[.]";
   257 	keynames[SDLK_KP_DIVIDE] = "[/]";
   258 	keynames[SDLK_KP_MULTIPLY] = "[*]";
   259 	keynames[SDLK_KP_MINUS] = "[-]";
   260 	keynames[SDLK_KP_PLUS] = "[+]";
   261 	keynames[SDLK_KP_ENTER] = "enter";
   262 	keynames[SDLK_KP_EQUALS] = "equals";
   263 
   264 	keynames[SDLK_UP] = "up";
   265 	keynames[SDLK_DOWN] = "down";
   266 	keynames[SDLK_RIGHT] = "right";
   267 	keynames[SDLK_LEFT] = "left";
   268 	keynames[SDLK_DOWN] = "down";
   269 	keynames[SDLK_INSERT] = "insert";
   270 	keynames[SDLK_HOME] = "home";
   271 	keynames[SDLK_END] = "end";
   272 	keynames[SDLK_PAGEUP] = "page up";
   273 	keynames[SDLK_PAGEDOWN] = "page down";
   274 
   275 	keynames[SDLK_F1] = "f1";
   276 	keynames[SDLK_F2] = "f2";
   277 	keynames[SDLK_F3] = "f3";
   278 	keynames[SDLK_F4] = "f4";
   279 	keynames[SDLK_F5] = "f5";
   280 	keynames[SDLK_F6] = "f6";
   281 	keynames[SDLK_F7] = "f7";
   282 	keynames[SDLK_F8] = "f8";
   283 	keynames[SDLK_F9] = "f9";
   284 	keynames[SDLK_F10] = "f10";
   285 	keynames[SDLK_F11] = "f11";
   286 	keynames[SDLK_F12] = "f12";
   287 	keynames[SDLK_F13] = "f13";
   288 	keynames[SDLK_F14] = "f14";
   289 	keynames[SDLK_F15] = "f15";
   290 
   291 	keynames[SDLK_NUMLOCK] = "numlock";
   292 	keynames[SDLK_CAPSLOCK] = "caps lock";
   293 	keynames[SDLK_SCROLLOCK] = "scroll lock";
   294 	keynames[SDLK_RSHIFT] = "right shift";
   295 	keynames[SDLK_LSHIFT] = "left shift";
   296 	keynames[SDLK_RCTRL] = "right ctrl";
   297 	keynames[SDLK_LCTRL] = "left ctrl";
   298 	keynames[SDLK_RALT] = "right alt";
   299 	keynames[SDLK_LALT] = "left alt";
   300 	keynames[SDLK_RMETA] = "right meta";
   301 	keynames[SDLK_LMETA] = "left meta";
   302 	keynames[SDLK_LSUPER] = "left super";	/* "Windows" keys */
   303 	keynames[SDLK_RSUPER] = "right super";	
   304 	keynames[SDLK_MODE] = "alt gr";
   305 	keynames[SDLK_COMPOSE] = "compose";
   306 
   307 	keynames[SDLK_HELP] = "help";
   308 	keynames[SDLK_PRINT] = "print screen";
   309 	keynames[SDLK_SYSREQ] = "sys req";
   310 	keynames[SDLK_BREAK] = "break";
   311 	keynames[SDLK_MENU] = "menu";
   312 	keynames[SDLK_POWER] = "power";
   313 	keynames[SDLK_EURO] = "euro";
   314 	keynames[SDLK_UNDO] = "undo";
   315 
   316 	/* Done.  Whew. */
   317 	return(0);
   318 }
   319 void SDL_KeyboardQuit(void)
   320 {
   321 }
   322 
   323 /* We lost the keyboard, so post key up messages for all pressed keys */
   324 void SDL_ResetKeyboard(void)
   325 {
   326 	SDL_keysym keysym;
   327 	SDLKey key;
   328 
   329 	memset(&keysym, 0, (sizeof keysym));
   330 	for ( key=SDLK_FIRST; key<SDLK_LAST; ++key ) {
   331 		if ( SDL_KeyState[key] == SDL_PRESSED ) {
   332 			keysym.sym = key;
   333 			SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
   334 		}
   335 	}
   336 	SDL_KeyRepeat.timestamp = 0;
   337 }
   338 
   339 int SDL_EnableUNICODE(int enable)
   340 {
   341 	int old_mode;
   342 
   343 	old_mode = SDL_TranslateUNICODE;
   344 	if ( enable >= 0 ) {
   345 		SDL_TranslateUNICODE = enable;
   346 	}
   347 	return(old_mode);
   348 }
   349 
   350 Uint8 * SDL_GetKeyState (int *numkeys)
   351 {
   352 	if ( numkeys != (int *)0 )
   353 		*numkeys = SDLK_LAST;
   354 	return(SDL_KeyState);
   355 }
   356 SDLMod SDL_GetModState (void)
   357 {
   358 	return(SDL_ModState);
   359 }
   360 void SDL_SetModState (SDLMod modstate)
   361 {
   362 	SDL_ModState = modstate;
   363 }
   364 
   365 char *SDL_GetKeyName(SDLKey key)
   366 {
   367 	char *keyname;
   368 
   369 	keyname = NULL;
   370 	if ( key < SDLK_LAST ) {
   371 		keyname = keynames[key];
   372 	}
   373 	if ( keyname == NULL ) {
   374 		keyname = "unknown key";
   375 	}
   376 	return(keyname);
   377 }
   378 
   379 /* These are global for SDL_eventloop.c */
   380 int SDL_PrivateKeyboard(Uint8 state, SDL_keysym *keysym)
   381 {
   382 	SDL_Event event;
   383 	int posted, repeatable;
   384 	Uint16 modstate;
   385 
   386 	memset(&event, 0, sizeof(event));
   387 
   388 #if 0
   389 printf("The '%s' key has been %s\n", SDL_GetKeyName(keysym->sym), 
   390 				state == SDL_PRESSED ? "pressed" : "released");
   391 #endif
   392 	/* Set up the keysym */
   393 	modstate = (Uint16)SDL_ModState;
   394 
   395 	repeatable = 0;
   396 
   397 	if ( state == SDL_PRESSED ) {
   398 		keysym->mod = (SDLMod)modstate;
   399 		switch (keysym->sym) {
   400 			case SDLK_UNKNOWN:
   401 				break;
   402 			case SDLK_NUMLOCK:
   403 				modstate ^= KMOD_NUM;
   404 				if ( ! (modstate&KMOD_NUM) )
   405 					state = SDL_RELEASED;
   406 				keysym->mod = (SDLMod)modstate;
   407 				break;
   408 			case SDLK_CAPSLOCK:
   409 				modstate ^= KMOD_CAPS;
   410 				if ( ! (modstate&KMOD_CAPS) )
   411 					state = SDL_RELEASED;
   412 				keysym->mod = (SDLMod)modstate;
   413 				break;
   414 			case SDLK_LCTRL:
   415 				modstate |= KMOD_LCTRL;
   416 				break;
   417 			case SDLK_RCTRL:
   418 				modstate |= KMOD_RCTRL;
   419 				break;
   420 			case SDLK_LSHIFT:
   421 				modstate |= KMOD_LSHIFT;
   422 				break;
   423 			case SDLK_RSHIFT:
   424 				modstate |= KMOD_RSHIFT;
   425 				break;
   426 			case SDLK_LALT:
   427 				modstate |= KMOD_LALT;
   428 				break;
   429 			case SDLK_RALT:
   430 				modstate |= KMOD_RALT;
   431 				break;
   432 			case SDLK_LMETA:
   433 				modstate |= KMOD_LMETA;
   434 				break;
   435 			case SDLK_RMETA:
   436 				modstate |= KMOD_RMETA;
   437 				break;
   438 			case SDLK_MODE:
   439 				modstate |= KMOD_MODE;
   440 				break;
   441 			default:
   442 				repeatable = 1;
   443 				break;
   444 		}
   445 	} else {
   446 		switch (keysym->sym) {
   447 			case SDLK_UNKNOWN:
   448 				break;
   449 			case SDLK_NUMLOCK:
   450 			case SDLK_CAPSLOCK:
   451 				/* Only send keydown events */
   452 				return(0);
   453 			case SDLK_LCTRL:
   454 				modstate &= ~KMOD_LCTRL;
   455 				break;
   456 			case SDLK_RCTRL:
   457 				modstate &= ~KMOD_RCTRL;
   458 				break;
   459 			case SDLK_LSHIFT:
   460 				modstate &= ~KMOD_LSHIFT;
   461 				break;
   462 			case SDLK_RSHIFT:
   463 				modstate &= ~KMOD_RSHIFT;
   464 				break;
   465 			case SDLK_LALT:
   466 				modstate &= ~KMOD_LALT;
   467 				break;
   468 			case SDLK_RALT:
   469 				modstate &= ~KMOD_RALT;
   470 				break;
   471 			case SDLK_LMETA:
   472 				modstate &= ~KMOD_LMETA;
   473 				break;
   474 			case SDLK_RMETA:
   475 				modstate &= ~KMOD_RMETA;
   476 				break;
   477 			case SDLK_MODE:
   478 				modstate &= ~KMOD_MODE;
   479 				break;
   480 			default:
   481 				break;
   482 		}
   483 		keysym->mod = (SDLMod)modstate;
   484 	}
   485 
   486 	/* Figure out what type of event this is */
   487 	switch (state) {
   488 		case SDL_PRESSED:
   489 			event.type = SDL_KEYDOWN;
   490 			break;
   491 		case SDL_RELEASED:
   492 			event.type = SDL_KEYUP;
   493 			/*
   494 			 * jk 991215 - Added
   495 			 */
   496 			if ( SDL_KeyRepeat.timestamp &&
   497 			     SDL_KeyRepeat.evt.key.keysym.sym == keysym->sym ) {
   498 				SDL_KeyRepeat.timestamp = 0;
   499 			}
   500 			break;
   501 		default:
   502 			/* Invalid state -- bail */
   503 			return(0);
   504 	}
   505 
   506 	if ( keysym->sym != SDLK_UNKNOWN ) {
   507 		/* Drop events that don't change state */
   508 		if ( SDL_KeyState[keysym->sym] == state ) {
   509 #if 0
   510 printf("Keyboard event didn't change state - dropped!\n");
   511 #endif
   512 			return(0);
   513 		}
   514 
   515 		/* Update internal keyboard state */
   516 		SDL_ModState = (SDLMod)modstate;
   517 		SDL_KeyState[keysym->sym] = state;
   518 	}
   519 
   520 	/* Post the event, if desired */
   521 	posted = 0;
   522 	if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) {
   523 		event.key.state = state;
   524 		event.key.keysym = *keysym;
   525 		/*
   526 		 * jk 991215 - Added
   527 		 */
   528 		if (repeatable && (SDL_KeyRepeat.delay != 0)) {
   529 			SDL_KeyRepeat.evt = event;
   530 			SDL_KeyRepeat.firsttime = 1;
   531 			SDL_KeyRepeat.timestamp=SDL_GetTicks();
   532 		}
   533 		if ( (SDL_EventOK == NULL) || SDL_EventOK(&event) ) {
   534 			posted = 1;
   535 			SDL_PushEvent(&event);
   536 		}
   537 	}
   538 	return(posted);
   539 }
   540 
   541 /*
   542  * jk 991215 - Added
   543  */
   544 void SDL_CheckKeyRepeat(void)
   545 {
   546 	if ( SDL_KeyRepeat.timestamp ) {
   547 		Uint32 now, interval;
   548 
   549 		now = SDL_GetTicks();
   550 		interval = (now - SDL_KeyRepeat.timestamp);
   551 		if ( SDL_KeyRepeat.firsttime ) {
   552 			if ( interval > (Uint32)SDL_KeyRepeat.delay ) {
   553 				SDL_KeyRepeat.timestamp = now;
   554 				SDL_KeyRepeat.firsttime = 0;
   555 			}
   556 		} else {
   557 			if ( interval > (Uint32)SDL_KeyRepeat.interval ) {
   558 				SDL_KeyRepeat.timestamp = now;
   559 				if ( (SDL_EventOK == NULL) || SDL_EventOK(&SDL_KeyRepeat.evt) ) {
   560 					SDL_PushEvent(&SDL_KeyRepeat.evt);
   561 				}
   562 			}
   563 		}
   564 	}
   565 }
   566 
   567 int SDL_EnableKeyRepeat(int delay, int interval)
   568 {
   569 	if ( (delay < 0) || (interval < 0) ) {
   570 		SDL_SetError("keyboard repeat value less than zero");
   571 		return(-1);
   572 	}
   573 	SDL_KeyRepeat.firsttime = 0;
   574 	SDL_KeyRepeat.delay = delay;
   575 	SDL_KeyRepeat.interval = interval;
   576 	SDL_KeyRepeat.timestamp = 0;
   577 	return(0);
   578 }
   579