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/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 = g_malloc0(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 /* This file is used by both, UI and core components. There are differences 68 * in the way how keymap file path is obtained for these two different 69 * configurations. */ 70 char * filename; 71 char line[1024]; 72 int len; 73 74 filename = qemu_find_file(QEMU_FILE_TYPE_KEYMAP, language); 75 if (!filename) { 76 fprintf(stderr, 77 "Could not read keymap file: '%s'\n", language); 78 return NULL; 79 } 80 81 if (!k) 82 k = g_malloc0(sizeof(kbd_layout_t)); 83 if (!(f = fopen(filename, "r"))) { 84 fprintf(stderr, 85 "Could not read keymap file: '%s'\n", language); 86 return NULL; 87 } 88 for(;;) { 89 if (fgets(line, 1024, f) == NULL) 90 break; 91 len = strlen(line); 92 if (len > 0 && line[len - 1] == '\n') 93 line[len - 1] = '\0'; 94 if (line[0] == '#') 95 continue; 96 if (!strncmp(line, "map ", 4)) 97 continue; 98 if (!strncmp(line, "include ", 8)) { 99 parse_keyboard_layout(table, line + 8, k); 100 } else { 101 char *end_of_keysym = line; 102 while (*end_of_keysym != 0 && *end_of_keysym != ' ') 103 end_of_keysym++; 104 if (*end_of_keysym) { 105 int keysym; 106 *end_of_keysym = 0; 107 keysym = get_keysym(table, line); 108 if (keysym == 0) { 109 // fprintf(stderr, "Warning: unknown keysym %s\n", line); 110 } else { 111 const char *rest = end_of_keysym + 1; 112 char *rest2; 113 int keycode = strtol(rest, &rest2, 0); 114 115 if (rest && strstr(rest, "numlock")) { 116 add_to_key_range(&k->keypad_range, keycode); 117 add_to_key_range(&k->numlock_range, keysym); 118 //fprintf(stderr, "keypad keysym %04x keycode %d\n", keysym, keycode); 119 } 120 121 /* if(keycode&0x80) 122 keycode=(keycode<<8)^0x80e0; */ 123 if (keysym < MAX_NORMAL_KEYCODE) { 124 //fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode); 125 k->keysym2keycode[keysym] = keycode; 126 } else { 127 if (k->extra_count >= MAX_EXTRA_COUNT) { 128 fprintf(stderr, 129 "Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n", 130 line, keysym); 131 } else { 132 #if 0 133 fprintf(stderr, "Setting %d: %d,%d\n", 134 k->extra_count, keysym, keycode); 135 #endif 136 k->keysym2keycode_extra[k->extra_count]. 137 keysym = keysym; 138 k->keysym2keycode_extra[k->extra_count]. 139 keycode = keycode; 140 k->extra_count++; 141 } 142 } 143 } 144 } 145 } 146 } 147 fclose(f); 148 return k; 149 } 150 151 152 void *init_keyboard_layout(const name2keysym_t *table, const char *language) 153 { 154 return parse_keyboard_layout(table, language, NULL); 155 } 156 157 158 int keysym2scancode(void *kbd_layout, int keysym) 159 { 160 kbd_layout_t *k = kbd_layout; 161 if (keysym < MAX_NORMAL_KEYCODE) { 162 if (k->keysym2keycode[keysym] == 0) 163 fprintf(stderr, "Warning: no scancode found for keysym %d\n", 164 keysym); 165 return k->keysym2keycode[keysym]; 166 } else { 167 int i; 168 #ifdef XK_ISO_Left_Tab 169 if (keysym == XK_ISO_Left_Tab) 170 keysym = XK_Tab; 171 #endif 172 for (i = 0; i < k->extra_count; i++) 173 if (k->keysym2keycode_extra[i].keysym == keysym) 174 return k->keysym2keycode_extra[i].keycode; 175 } 176 return 0; 177 } 178 179 int keycode_is_keypad(void *kbd_layout, int keycode) 180 { 181 kbd_layout_t *k = kbd_layout; 182 struct key_range *kr; 183 184 for (kr = k->keypad_range; kr; kr = kr->next) 185 if (keycode >= kr->start && keycode <= kr->end) 186 return 1; 187 return 0; 188 } 189 190 int keysym_is_numlock(void *kbd_layout, int keysym) 191 { 192 kbd_layout_t *k = kbd_layout; 193 struct key_range *kr; 194 195 for (kr = k->numlock_range; kr; kr = kr->next) 196 if (keysym >= kr->start && keysym <= kr->end) 197 return 1; 198 return 0; 199 } 200
