input/ggi/key.c

   1 #include <conf.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 #include <ggi/gii.h>
   6
   7 #include "event.h"
   8 #include "error.h"
   9 #include "key.h"
  10 #include "timer.h"
  11 #include "mono.h"
  12
  13 //added on 9/3/98 by Matt Mueller to free some cpu instead of hogging during menus and such
  14 #include "d_delay.h"
  15 //end this section addition - Matt Mueller
  16
  17 #define KEY_BUFFER_SIZE 16
  18
  19 static unsigned char Installed = 0;
  20
  21 //-------- Variable accessed by outside functions ---------
  22 unsigned char           keyd_buffer_type;               // 0=No buffer, 1=buffer ASCII, 2=buffer scans
  23 unsigned char           keyd_repeat;
  24 unsigned char           keyd_editor_mode;
  25 volatile unsigned char  keyd_last_pressed;
  26 volatile unsigned char  keyd_last_released;
  27 volatile unsigned char  keyd_pressed[256];
  28 volatile int            keyd_time_when_last_pressed;
  29
  30 typedef struct Key_info {
  31         ubyte           state;                  // state of key 1 == down, 0 == up
  32         ubyte           last_state;             // previous state of key
  33         int             counter;                // incremented each time key is down in handler
  34         fix             timewentdown;   // simple counter incremented each time in interrupt and key is down
  35         fix             timehelddown;   // counter to tell how long key is down -- gets reset to 0 by key routines
  36         ubyte           downcount;              // number of key counts key was down
  37         ubyte           upcount;                // number of times key was released
  38 } Key_info;
  39
  40 typedef struct keyboard {
  41         unsigned short          keybuffer[KEY_BUFFER_SIZE];
  42         Key_info                keys[256];
  43         fix                     time_pressed[KEY_BUFFER_SIZE];
  44         unsigned int            keyhead, keytail;
  45 } keyboard;
  46
  47 static /*volatile*/ keyboard key_data;
  48
  49 char * key_text[256] = {
  50 "","ESC","1","2","3","4","5","6","7","8","9","0","-",
  51 "=","BSPC","TAB","Q","W","E","R","T","Y","U","I","O",
  52 "P","[","]","\83","LCTRL","A","S","D","F",
  53 "G","H","J","K","L",";","'","`",
  54 "LSHFT","\\","Z","X","C","V","B","N","M",",",
  55 ".","/","RSHFT","PAD*","LALT","SPC",
  56 "CPSLK","F1","F2","F3","F4","F5","F6","F7","F8","F9",
  57 "F10","NMLCK","SCLK","PAD7","PAD8","PAD9","PAD-",
  58 "PAD4","PAD5","PAD6","PAD+","PAD1","PAD2","PAD3","PAD0",
  59 "PAD.","","","","F11","F12","","","","","","","","","",
  60 "","","","","","","","","","","","","","","","","","","","",
  61 "","","","","","","","","","","","","","","","","","","","",
  62 "","","","","","","","","","","","","","","","","","",
  63 "PAD\83","RCTRL","","","","","","","","","","","","","",
  64 "","","","","","","","","","","PAD/","","","RALT","",
  65 "","","","","","","","","","","","","","HOME","\82","PGUP",
  66 "","\81","","\7f","","END","\80","PGDN","INS",
  67 "DEL","","","","","","","","","","","","","","","","","",
  68 "","","","","","","","","","","","","","","","","","","","",
  69 "","","","","","","" };
  70
  71 unsigned char ascii_table[128] =
  72 { 255, 255, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',255,255,
  73   'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', 255, 255,
  74   'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', 39, '`',
  75   255, '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 255,'*',
  76   255, ' ', 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,255,255,
  77   255, 255, 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  78   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  79   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  80   255,255,255,255,255,255,255,255 };
  81
  82 unsigned char shifted_ascii_table[128] =
  83 { 255, 255, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',255,255,
  84   'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', 255, 255,
  85   'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~',
  86   255, '|', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 255,255,
  87   255, ' ', 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,255,255,
  88   255, 255, 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  89   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  90   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  91   255,255,255,255,255,255,255,255 };
  92
  93 int giiKeyTranslate (int keylabel) {
  94  switch (keylabel)
  95  {
  96   case GIIUC_0: return KEY_0;
  97   case GIIUC_1: return KEY_1;
  98   case GIIUC_2: return KEY_2;
  99   case GIIUC_3: return KEY_3;
 100   case GIIUC_4: return KEY_4;
 101   case GIIUC_5: return KEY_5;
 102   case GIIUC_6: return KEY_6;
 103   case GIIUC_7: return KEY_7;
 104   case GIIUC_8: return KEY_8;
 105   case GIIUC_9: return KEY_9;
 106
 107   case GIIUC_A: return KEY_A;
 108   case GIIUC_B: return KEY_B;
 109   case GIIUC_C: return KEY_C;
 110   case GIIUC_D: return KEY_D;
 111   case GIIUC_E: return KEY_E;
 112   case GIIUC_F: return KEY_F;
 113   case GIIUC_G: return KEY_G;
 114   case GIIUC_H: return KEY_H;
 115   case GIIUC_I: return KEY_I;
 116   case GIIUC_J: return KEY_J;
 117   case GIIUC_K: return KEY_K;
 118   case GIIUC_L: return KEY_L;
 119   case GIIUC_M: return KEY_M;
 120   case GIIUC_N: return KEY_N;
 121   case GIIUC_O: return KEY_O;
 122   case GIIUC_P: return KEY_P;
 123   case GIIUC_Q: return KEY_Q;
 124   case GIIUC_R: return KEY_R;
 125   case GIIUC_S: return KEY_S;
 126   case GIIUC_T: return KEY_T;
 127   case GIIUC_U: return KEY_U;
 128   case GIIUC_V: return KEY_V;
 129   case GIIUC_W: return KEY_W;
 130   case GIIUC_X: return KEY_X;
 131   case GIIUC_Y: return KEY_Y;
 132   case GIIUC_Z: return KEY_Z;
 133
 134   case GIIUC_Minus: return KEY_MINUS;
 135   case GIIUC_Equal: return KEY_EQUAL;
 136   case GIIUC_Slash: return KEY_DIVIDE;
 137   case GIIUC_BackSlash: return KEY_SLASH;
 138   case GIIUC_Comma: return KEY_COMMA;
 139   case GIIUC_Period: return KEY_PERIOD;
 140   case GIIUC_Semicolon: return KEY_SEMICOL;
 141
 142   case GIIUC_BracketLeft: return KEY_LBRACKET;
 143   case GIIUC_BracketRight: return KEY_RBRACKET;
 144
 145   case GIIUC_Apostrophe: return KEY_RAPOSTRO;
 146   case GIIUC_Grave:  return KEY_LAPOSTRO;
 147
 148   case GIIUC_Escape: return KEY_ESC;
 149   case GIIK_Enter: return KEY_ENTER;
 150   case GIIUC_BackSpace: return KEY_BACKSP;
 151   case GIIUC_Tab: return KEY_TAB;
 152   case GIIUC_Space: return KEY_SPACEBAR;
 153
 154   case GIIK_NumLock: return KEY_NUMLOCK;
 155   case GIIK_ScrollLock: return KEY_SCROLLOCK;
 156   case GIIK_CapsLock: return KEY_CAPSLOCK;
 157
 158   case GIIK_ShiftL: return KEY_LSHIFT;
 159   case GIIK_ShiftR: return KEY_RSHIFT;
 160
 161   case GIIK_AltL: return KEY_LALT;
 162   case GIIK_AltR: return KEY_RALT;
 163
 164   case GIIK_CtrlL: return KEY_LCTRL;
 165   case GIIK_CtrlR: return KEY_RCTRL;
 166
 167   case GIIK_F1: return KEY_F1;
 168   case GIIK_F2: return KEY_F2;
 169   case GIIK_F3: return KEY_F3;
 170   case GIIK_F4: return KEY_F4;
 171   case GIIK_F5: return KEY_F5;
 172   case GIIK_F6: return KEY_F6;
 173   case GIIK_F7: return KEY_F7;
 174   case GIIK_F8: return KEY_F8;
 175   case GIIK_F9: return KEY_F9;
 176   case GIIK_F10: return KEY_F10;
 177   case GIIK_F11: return KEY_F11;
 178   case GIIK_F12: return KEY_F12;
 179
 180   case GIIK_P0: return KEY_PAD0;
 181   case GIIK_P1: return KEY_PAD1;
 182   case GIIK_P2: return KEY_PAD2;
 183   case GIIK_P3: return KEY_PAD3;
 184   case GIIK_P4: return KEY_PAD4;
 185   case GIIK_P5: return KEY_PAD5;
 186   case GIIK_P6: return KEY_PAD6;
 187   case GIIK_P7: return KEY_PAD7;
 188   case GIIK_P8: return KEY_PAD8;
 189   case GIIK_P9: return KEY_PAD9;
 190   case GIIK_PMinus: return KEY_PADMINUS;
 191   case GIIK_PPlus: return KEY_PADPLUS;
 192   case GIIK_PDecimal: return KEY_PADPERIOD;
 193   case GIIK_PSlash: return KEY_PADDIVIDE;
 194   case GIIK_PAsterisk: return KEY_PADMULTIPLY;
 195   case GIIK_PEnter: return KEY_PADENTER;
 196
 197   case GIIK_Insert: return KEY_INSERT;
 198   case GIIK_Home: return KEY_HOME;
 199   case GIIK_PageUp: return KEY_PAGEUP;
 200   case GIIK_Delete: return KEY_DELETE;
 201   case GIIK_End: return KEY_END;
 202   case GIIK_PageDown: return KEY_PAGEDOWN;
 203   case GIIK_Up: return KEY_UP;
 204   case GIIK_Down: return KEY_DOWN;
 205   case GIIK_Left: return KEY_LEFT;
 206   case GIIK_Right: return KEY_RIGHT;
 207
 208   case GIIK_PrintScreen: return KEY_PRINT_SCREEN;
 209   case GIIK_Pause: return KEY_PAUSE;
 210  }
 211  return 0;
 212 }
 213
 214 //killed on 10/03/98 by Matt Mueller
 215 //unsigned char key_to_ascii(int a)
 216 //{
 217 // if (!isprint(a)) return 255;
 218 // if (a & KEY_SHIFTED) {
 219 //  return (toupper((unsigned char) a));
 220 // } else {
 221 //  return ((unsigned char) a);
 222 // }
 223 //}
 224 //end kill -MM
 225
 226 //added on 10/03/98 by Matt Mueller to fix shifted keys (copied from dos/key.c)
 227 unsigned char key_to_ascii(int keycode)
 228 {
 229         int shifted;
 230
 231         shifted = keycode & KEY_SHIFTED;
 232         keycode &= 0xFF;
 233
 234         if ( keycode>=127 )
 235                 return 255;
 236
 237         if (shifted)
 238                 return shifted_ascii_table[keycode];
 239         else
 240                 return ascii_table[keycode];
 241 }
 242 //end addition -MM
 243
 244 void keyboard_handler(int button, ubyte state)
 245 {
 246         ubyte key_state;
 247         int i, keycode;
 248         unsigned short event_key;
 249         Key_info *key;
 250         unsigned char temp;
 251
 252         key_state = state;
 253         event_key = giiKeyTranslate(button);
 254         //mprintf((0,"keyboard_handler(%i,%i):%i\n",button,state,event_key));
 255
 256         //=====================================================
 257         //Here a translation from win keycodes to mac keycodes!
 258         //=====================================================
 259
 260         for (i = 255; i >= 0; i--) {
 261
 262                 keycode = i;
 263                 key = &(key_data.keys[keycode]);
 264                 if (i == event_key)
 265                         state = key_state;
 266                 else
 267                         state = key->last_state;
 268
 269                 if ( key->last_state == state ) {
 270                         if (state) {
 271                                 key->counter++;
 272                                 keyd_last_pressed = keycode;
 273                                 keyd_time_when_last_pressed = timer_get_fixed_seconds();
 274                         }
 275                 } else {
 276                         if (state)      {
 277                                 keyd_last_pressed = keycode;
 278                                 keyd_pressed[keycode] = 1;
 279                                 key->downcount += state;
 280                                 key->state = 1;
 281                                 key->timewentdown = keyd_time_when_last_pressed = timer_get_fixed_seconds();
 282                                 key->counter++;
 283                         } else {
 284                                 keyd_pressed[keycode] = 0;
 285                                 keyd_last_released = keycode;
 286                                 key->upcount += key->state;
 287                                 key->state = 0;
 288                                 key->counter = 0;
 289                                 key->timehelddown += timer_get_fixed_seconds() - key->timewentdown;
 290                         }
 291                 }
 292                 if ( (state && !key->last_state) || (state && key->last_state && (key->counter > 30) && (key->counter & 0x01)) ) {
 293                         if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT])
 294                                 keycode |= KEY_SHIFTED;
 295                         if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT])
 296                                 keycode |= KEY_ALTED;
 297                         if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL])
 298                                 keycode |= KEY_CTRLED;
 299                         if ( keyd_pressed[KEY_DELETE] )
 300                                 keycode |= KEY_DEBUGGED;
 301                         temp = key_data.keytail+1;
 302                         if ( temp >= KEY_BUFFER_SIZE ) temp=0;
 303                         if (temp!=key_data.keyhead)     {
 304                                 key_data.keybuffer[key_data.keytail] = keycode;
 305                                 key_data.time_pressed[key_data.keytail] = keyd_time_when_last_pressed;
 306                                 key_data.keytail = temp;
 307                         }
 308                 }
 309                 key->last_state = state;
 310         }
 311 }
 312
 313 void key_close()
 314 {
 315         Installed = 0;
 316 }
 317
 318 void key_init()
 319 {
 320         Installed=1;
 321
 322         keyd_time_when_last_pressed = timer_get_fixed_seconds();
 323         keyd_buffer_type = 1;
 324         keyd_repeat = 1;
 325
 326 // Clear the keyboard array
 327         key_flush();
 328         atexit(key_close);
 329 }
 330
 331 void key_flush()
 332 {
 333         int i;
 334         fix curtime;
 335
 336         if (!Installed)
 337                 key_init();
 338
 339         key_data.keyhead = key_data.keytail = 0;
 340
 341         //Clear the keyboard buffer
 342         for (i=0; i<KEY_BUFFER_SIZE; i++ )      {
 343                 key_data.keybuffer[i] = 0;
 344                 key_data.time_pressed[i] = 0;
 345         }
 346
 347         curtime = timer_get_fixed_seconds();
 348
 349         for (i=0; i<256; i++ )  {
 350                 keyd_pressed[i] = 0;
 351                 key_data.keys[i].state = 1;
 352                 key_data.keys[i].last_state = 0;
 353                 key_data.keys[i].timewentdown = curtime;
 354                 key_data.keys[i].downcount=0;
 355                 key_data.keys[i].upcount=0;
 356                 key_data.keys[i].timehelddown = 0;
 357                 key_data.keys[i].counter = 0;
 358         }
 359 }
 360
 361 int add_one(int n)
 362 {
 363  n++;
 364  if ( n >= KEY_BUFFER_SIZE ) n=0;
 365  return n;
 366 }
 367
 368 int key_checkch()
 369 {
 370         int is_one_waiting = 0;
 371         event_poll();
 372         if (key_data.keytail!=key_data.keyhead)
 373                 is_one_waiting = 1;
 374         return is_one_waiting;
 375 }
 376
 377 int key_inkey()
 378 {
 379         int key = 0;
 380         if (!Installed)
 381                 key_init();
 382         event_poll();
 383         if (key_data.keytail!=key_data.keyhead) {
 384                 key = key_data.keybuffer[key_data.keyhead];
 385                 key_data.keyhead = add_one(key_data.keyhead);
 386         }
 387 //added 9/3/98 by Matt Mueller to free cpu time instead of hogging during menus and such
 388 //      else d_delay(1);
 389 //end addition - Matt Mueller
 390         return key;
 391 }
 392
 393 int key_inkey_time(fix * time)
 394 {
 395         int key = 0;
 396
 397         if (!Installed)
 398                 key_init();
 399         event_poll();
 400         if (key_data.keytail!=key_data.keyhead) {
 401                 key = key_data.keybuffer[key_data.keyhead];
 402                 *time = key_data.time_pressed[key_data.keyhead];
 403                 key_data.keyhead = add_one(key_data.keyhead);
 404         }
 405         return key;
 406 }
 407
 408 int key_peekkey()
 409 {
 410         int key = 0;
 411         event_poll();
 412         if (key_data.keytail!=key_data.keyhead)
 413                 key = key_data.keybuffer[key_data.keyhead];
 414
 415         return key;
 416 }
 417
 418 int key_getch()
 419 {
 420         int dummy=0;
 421
 422         if (!Installed)
 423                 return 0;
 424 //              return getch();
 425
 426         while (!key_checkch())
 427                 dummy++;
 428         return key_inkey();
 429 }
 430
 431 unsigned int key_get_shift_status()
 432 {
 433         unsigned int shift_status = 0;
 434
 435         if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT] )
 436                 shift_status |= KEY_SHIFTED;
 437
 438         if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT] )
 439                 shift_status |= KEY_ALTED;
 440
 441         if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL] )
 442                 shift_status |= KEY_CTRLED;
 443
 444 #ifndef NDEBUG
 445         if (keyd_pressed[KEY_DELETE])
 446                 shift_status |=KEY_DEBUGGED;
 447 #endif
 448
 449         return shift_status;
 450 }
 451
 452 // Returns the number of seconds this key has been down since last call.
 453 fix key_down_time(int scancode)
 454 {
 455         fix time_down, time;
 456
 457         event_poll();
 458         if ((scancode<0)|| (scancode>255)) return 0;
 459
 460         if (!keyd_pressed[scancode]) {
 461                 time_down = key_data.keys[scancode].timehelddown;
 462                 key_data.keys[scancode].timehelddown = 0;
 463         } else {
 464                 time = timer_get_fixed_seconds();
 465                 time_down = time - key_data.keys[scancode].timewentdown;
 466                 key_data.keys[scancode].timewentdown = time;
 467         }
 468
 469         return time_down;
 470 }
 471
 472 unsigned int key_down_count(int scancode)
 473 {
 474         int n;
 475         event_poll();
 476         if ((scancode<0)|| (scancode>255)) return 0;
 477
 478         n = key_data.keys[scancode].downcount;
 479         key_data.keys[scancode].downcount = 0;
 480
 481         return n;
 482 }
 483
 484 unsigned int key_up_count(int scancode)
 485 {
 486         int n;
 487         event_poll();
 488         if ((scancode<0)|| (scancode>255)) return 0;
 489
 490         n = key_data.keys[scancode].upcount;
 491         key_data.keys[scancode].upcount = 0;
 492
 493         return n;
 494 }
 495