File:  [Qemu by Fabrice Bellard] / qemu / keymaps.c
Revision 1.1.1.5 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:20:40 2018 UTC (2 years, 4 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0125, qemu0124, qemu0123, qemu0122, qemu0121, qemu0120, qemu0111, qemu0110, HEAD
qemu 0.11.0

    1: /*
    2:  * QEMU keysym to keycode conversion using rdesktop keymaps
    3:  *
    4:  * Copyright (c) 2004 Johannes Schindelin
    5:  *
    6:  * Permission is hereby granted, free of charge, to any person obtaining a copy
    7:  * of this software and associated documentation files (the "Software"), to deal
    8:  * in the Software without restriction, including without limitation the rights
    9:  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   10:  * copies of the Software, and to permit persons to whom the Software is
   11:  * furnished to do so, subject to the following conditions:
   12:  *
   13:  * The above copyright notice and this permission notice shall be included in
   14:  * all copies or substantial portions of the Software.
   15:  *
   16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   17:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   19:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   21:  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   22:  * THE SOFTWARE.
   23:  */
   24: 
   25: #include "keymaps.h"
   26: #include "sysemu.h"
   27: 
   28: static int get_keysym(const name2keysym_t *table,
   29: 		      const char *name)
   30: {
   31:     const name2keysym_t *p;
   32:     for(p = table; p->name != NULL; p++) {
   33:         if (!strcmp(p->name, name))
   34:             return p->keysym;
   35:     }
   36:     return 0;
   37: }
   38: 
   39: 
   40: static void add_to_key_range(struct key_range **krp, int code) {
   41:     struct key_range *kr;
   42:     for (kr = *krp; kr; kr = kr->next) {
   43: 	if (code >= kr->start && code <= kr->end)
   44: 	    break;
   45: 	if (code == kr->start - 1) {
   46: 	    kr->start--;
   47: 	    break;
   48: 	}
   49: 	if (code == kr->end + 1) {
   50: 	    kr->end++;
   51: 	    break;
   52: 	}
   53:     }
   54:     if (kr == NULL) {
   55: 	kr = qemu_mallocz(sizeof(*kr));
   56:         kr->start = kr->end = code;
   57:         kr->next = *krp;
   58:         *krp = kr;
   59:     }
   60: }
   61: 
   62: static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table,
   63: 					   const char *language,
   64: 					   kbd_layout_t * k)
   65: {
   66:     FILE *f;
   67:     char * filename;
   68:     char line[1024];
   69:     int len;
   70: 
   71:     filename = qemu_find_file(QEMU_FILE_TYPE_KEYMAP, language);
   72: 
   73:     if (!k)
   74: 	k = qemu_mallocz(sizeof(kbd_layout_t));
   75:     if (!(filename && (f = fopen(filename, "r")))) {
   76: 	fprintf(stderr,
   77: 		"Could not read keymap file: '%s'\n", language);
   78: 	return NULL;
   79:     }
   80:     qemu_free(filename);
   81:     for(;;) {
   82: 	if (fgets(line, 1024, f) == NULL)
   83:             break;
   84:         len = strlen(line);
   85:         if (len > 0 && line[len - 1] == '\n')
   86:             line[len - 1] = '\0';
   87:         if (line[0] == '#')
   88: 	    continue;
   89: 	if (!strncmp(line, "map ", 4))
   90: 	    continue;
   91: 	if (!strncmp(line, "include ", 8)) {
   92: 	    parse_keyboard_layout(table, line + 8, k);
   93:         } else {
   94: 	    char *end_of_keysym = line;
   95: 	    while (*end_of_keysym != 0 && *end_of_keysym != ' ')
   96: 		end_of_keysym++;
   97: 	    if (*end_of_keysym) {
   98: 		int keysym;
   99: 		*end_of_keysym = 0;
  100: 		keysym = get_keysym(table, line);
  101: 		if (keysym == 0) {
  102:                     //		    fprintf(stderr, "Warning: unknown keysym %s\n", line);
  103: 		} else {
  104: 		    const char *rest = end_of_keysym + 1;
  105: 		    char *rest2;
  106: 		    int keycode = strtol(rest, &rest2, 0);
  107: 
  108: 		    if (rest && strstr(rest, "numlock")) {
  109: 			add_to_key_range(&k->keypad_range, keycode);
  110: 			add_to_key_range(&k->numlock_range, keysym);
  111: 			//fprintf(stderr, "keypad keysym %04x keycode %d\n", keysym, keycode);
  112: 		    }
  113: 
  114: 		    /* if(keycode&0x80)
  115: 		       keycode=(keycode<<8)^0x80e0; */
  116: 		    if (keysym < MAX_NORMAL_KEYCODE) {
  117: 			//fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode);
  118: 			k->keysym2keycode[keysym] = keycode;
  119: 		    } else {
  120: 			if (k->extra_count >= MAX_EXTRA_COUNT) {
  121: 			    fprintf(stderr,
  122: 				    "Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n",
  123: 				    line, keysym);
  124: 			} else {
  125: #if 0
  126: 			    fprintf(stderr, "Setting %d: %d,%d\n",
  127: 				    k->extra_count, keysym, keycode);
  128: #endif
  129: 			    k->keysym2keycode_extra[k->extra_count].
  130: 				keysym = keysym;
  131: 			    k->keysym2keycode_extra[k->extra_count].
  132: 				keycode = keycode;
  133: 			    k->extra_count++;
  134: 			}
  135: 		    }
  136: 		}
  137: 	    }
  138: 	}
  139:     }
  140:     fclose(f);
  141:     return k;
  142: }
  143: 
  144: 
  145: void *init_keyboard_layout(const name2keysym_t *table, const char *language)
  146: {
  147:     return parse_keyboard_layout(table, language, NULL);
  148: }
  149: 
  150: 
  151: int keysym2scancode(void *kbd_layout, int keysym)
  152: {
  153:     kbd_layout_t *k = kbd_layout;
  154:     if (keysym < MAX_NORMAL_KEYCODE) {
  155: 	if (k->keysym2keycode[keysym] == 0)
  156: 	    fprintf(stderr, "Warning: no scancode found for keysym %d\n",
  157: 		    keysym);
  158: 	return k->keysym2keycode[keysym];
  159:     } else {
  160: 	int i;
  161: #ifdef XK_ISO_Left_Tab
  162: 	if (keysym == XK_ISO_Left_Tab)
  163: 	    keysym = XK_Tab;
  164: #endif
  165: 	for (i = 0; i < k->extra_count; i++)
  166: 	    if (k->keysym2keycode_extra[i].keysym == keysym)
  167: 		return k->keysym2keycode_extra[i].keycode;
  168:     }
  169:     return 0;
  170: }
  171: 
  172: int keycode_is_keypad(void *kbd_layout, int keycode)
  173: {
  174:     kbd_layout_t *k = kbd_layout;
  175:     struct key_range *kr;
  176: 
  177:     for (kr = k->keypad_range; kr; kr = kr->next)
  178:         if (keycode >= kr->start && keycode <= kr->end)
  179:             return 1;
  180:     return 0;
  181: }
  182: 
  183: int keysym_is_numlock(void *kbd_layout, int keysym)
  184: {
  185:     kbd_layout_t *k = kbd_layout;
  186:     struct key_range *kr;
  187: 
  188:     for (kr = k->numlock_range; kr; kr = kr->next)
  189:         if (keysym >= kr->start && keysym <= kr->end)
  190:             return 1;
  191:     return 0;
  192: }

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