qemu/keymaps.c
Samuel Thibault 44bb61c8d9 Fix curses interaction with keymaps
The combination of keymap support (-k option) and curses is currently
very broken.  The patch below fixes it by first extending keymap support
to interpret the shift, ctrl, altgr and addupper keywords in keymaps,
and to fix curses into properly using keymaps.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2010-03-06 23:15:30 +01:00

211 lines
5.7 KiB
C

/*
* QEMU keysym to keycode conversion using rdesktop keymaps
*
* Copyright (c) 2004 Johannes Schindelin
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "keymaps.h"
#include "sysemu.h"
static int get_keysym(const name2keysym_t *table,
const char *name)
{
const name2keysym_t *p;
for(p = table; p->name != NULL; p++) {
if (!strcmp(p->name, name))
return p->keysym;
}
return 0;
}
static void add_to_key_range(struct key_range **krp, int code) {
struct key_range *kr;
for (kr = *krp; kr; kr = kr->next) {
if (code >= kr->start && code <= kr->end)
break;
if (code == kr->start - 1) {
kr->start--;
break;
}
if (code == kr->end + 1) {
kr->end++;
break;
}
}
if (kr == NULL) {
kr = qemu_mallocz(sizeof(*kr));
kr->start = kr->end = code;
kr->next = *krp;
*krp = kr;
}
}
static void add_keysym(char *line, int keysym, int keycode, kbd_layout_t *k) {
if (keysym < MAX_NORMAL_KEYCODE) {
//fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode);
k->keysym2keycode[keysym] = keycode;
} else {
if (k->extra_count >= MAX_EXTRA_COUNT) {
fprintf(stderr,
"Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n",
line, keysym);
} else {
#if 0
fprintf(stderr, "Setting %d: %d,%d\n",
k->extra_count, keysym, keycode);
#endif
k->keysym2keycode_extra[k->extra_count].
keysym = keysym;
k->keysym2keycode_extra[k->extra_count].
keycode = keycode;
k->extra_count++;
}
}
}
static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table,
const char *language,
kbd_layout_t * k)
{
FILE *f;
char * filename;
char line[1024];
int len;
filename = qemu_find_file(QEMU_FILE_TYPE_KEYMAP, language);
if (!k)
k = qemu_mallocz(sizeof(kbd_layout_t));
if (!(filename && (f = fopen(filename, "r")))) {
fprintf(stderr,
"Could not read keymap file: '%s'\n", language);
return NULL;
}
qemu_free(filename);
for(;;) {
if (fgets(line, 1024, f) == NULL)
break;
len = strlen(line);
if (len > 0 && line[len - 1] == '\n')
line[len - 1] = '\0';
if (line[0] == '#')
continue;
if (!strncmp(line, "map ", 4))
continue;
if (!strncmp(line, "include ", 8)) {
parse_keyboard_layout(table, line + 8, k);
} else {
char *end_of_keysym = line;
while (*end_of_keysym != 0 && *end_of_keysym != ' ')
end_of_keysym++;
if (*end_of_keysym) {
int keysym;
*end_of_keysym = 0;
keysym = get_keysym(table, line);
if (keysym == 0) {
// fprintf(stderr, "Warning: unknown keysym %s\n", line);
} else {
const char *rest = end_of_keysym + 1;
char *rest2;
int keycode = strtol(rest, &rest2, 0);
if (rest && strstr(rest, "numlock")) {
add_to_key_range(&k->keypad_range, keycode);
add_to_key_range(&k->numlock_range, keysym);
//fprintf(stderr, "keypad keysym %04x keycode %d\n", keysym, keycode);
}
if (rest && strstr(rest, "shift"))
keycode |= SCANCODE_SHIFT;
if (rest && strstr(rest, "altgr"))
keycode |= SCANCODE_ALTGR;
if (rest && strstr(rest, "ctrl"))
keycode |= SCANCODE_CTRL;
add_keysym(line, keysym, keycode, k);
if (rest && strstr(rest, "addupper")) {
char *c;
for (c = line; *c; c++)
*c = toupper(*c);
keysym = get_keysym(table, line);
if (keysym)
add_keysym(line, keysym, keycode | SCANCODE_SHIFT, k);
}
}
}
}
}
fclose(f);
return k;
}
void *init_keyboard_layout(const name2keysym_t *table, const char *language)
{
return parse_keyboard_layout(table, language, NULL);
}
int keysym2scancode(void *kbd_layout, int keysym)
{
kbd_layout_t *k = kbd_layout;
if (keysym < MAX_NORMAL_KEYCODE) {
if (k->keysym2keycode[keysym] == 0)
fprintf(stderr, "Warning: no scancode found for keysym %d\n",
keysym);
return k->keysym2keycode[keysym];
} else {
int i;
#ifdef XK_ISO_Left_Tab
if (keysym == XK_ISO_Left_Tab)
keysym = XK_Tab;
#endif
for (i = 0; i < k->extra_count; i++)
if (k->keysym2keycode_extra[i].keysym == keysym)
return k->keysym2keycode_extra[i].keycode;
}
return 0;
}
int keycode_is_keypad(void *kbd_layout, int keycode)
{
kbd_layout_t *k = kbd_layout;
struct key_range *kr;
for (kr = k->keypad_range; kr; kr = kr->next)
if (keycode >= kr->start && keycode <= kr->end)
return 1;
return 0;
}
int keysym_is_numlock(void *kbd_layout, int keysym)
{
kbd_layout_t *k = kbd_layout;
struct key_range *kr;
for (kr = k->numlock_range; kr; kr = kr->next)
if (keysym >= kr->start && keysym <= kr->end)
return 1;
return 0;
}