1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 2000 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
35 #include "gdkprivate-win32.h"
36 #include "gdkinternals.h"
37 #include "gdkkeysyms.h"
41 guint _gdk_keymap_serial = 0;
42 gboolean _gdk_keyboard_has_altgr = FALSE;
43 guint _scancode_rshift = 0;
45 static GdkModifierType gdk_shift_modifiers = GDK_SHIFT_MASK;
47 static GdkKeymap *default_keymap = NULL;
49 static guint *keysym_tab = NULL;
53 print_keysym_tab (void)
57 g_print ("keymap:%s%s\n",
58 _gdk_keyboard_has_altgr ? " (uses AltGr)" : "",
59 (gdk_shift_modifiers & GDK_LOCK_MASK) ? " (has ShiftLock)" : "");
60 for (vk = 0; vk < 256; vk++)
64 g_print ("%#.02x: ", vk);
65 for (state = 0; state < 4; state++)
67 gchar *name = gdk_keyval_name (keysym_tab[vk*4 + state]);
70 g_print ("%s ", name);
78 handle_special (guint vk,
86 *ksymp = GDK_Cancel; break;
88 *ksymp = GDK_BackSpace; break;
91 *ksymp = GDK_ISO_Left_Tab;
96 *ksymp = GDK_Clear; break;
98 *ksymp = GDK_Return; break;
101 *ksymp = GDK_Shift_L; break;
104 *ksymp = GDK_Control_L; break;
107 *ksymp = GDK_Alt_L; break;
109 *ksymp = GDK_Pause; break;
111 *ksymp = GDK_Escape; break;
113 *ksymp = GDK_Prior; break;
115 *ksymp = GDK_Next; break;
117 *ksymp = GDK_End; break;
119 *ksymp = GDK_Home; break;
121 *ksymp = GDK_Left; break;
123 *ksymp = GDK_Up; break;
125 *ksymp = GDK_Right; break;
127 *ksymp = GDK_Down; break;
129 *ksymp = GDK_Select; break;
131 *ksymp = GDK_Print; break;
133 *ksymp = GDK_Execute; break;
135 *ksymp = GDK_Insert; break;
137 *ksymp = GDK_Delete; break;
139 *ksymp = GDK_Help; break;
141 *ksymp = GDK_Meta_L; break;
143 *ksymp = GDK_Meta_R; break;
145 *ksymp = GDK_Menu; break;
147 *ksymp = GDK_KP_Multiply; break;
149 *ksymp = GDK_KP_Add; break;
151 *ksymp = GDK_KP_Separator; break;
153 *ksymp = GDK_KP_Subtract; break;
155 *ksymp = GDK_KP_Divide; break;
157 *ksymp = GDK_KP_0; break;
159 *ksymp = GDK_KP_1; break;
161 *ksymp = GDK_KP_2; break;
163 *ksymp = GDK_KP_3; break;
165 *ksymp = GDK_KP_4; break;
167 *ksymp = GDK_KP_5; break;
169 *ksymp = GDK_KP_6; break;
171 *ksymp = GDK_KP_7; break;
173 *ksymp = GDK_KP_8; break;
175 *ksymp = GDK_KP_9; break;
177 *ksymp = GDK_F1; break;
179 *ksymp = GDK_F2; break;
181 *ksymp = GDK_F3; break;
183 *ksymp = GDK_F4; break;
185 *ksymp = GDK_F5; break;
187 *ksymp = GDK_F6; break;
189 *ksymp = GDK_F7; break;
191 *ksymp = GDK_F8; break;
193 *ksymp = GDK_F9; break;
195 *ksymp = GDK_F10; break;
197 *ksymp = GDK_F11; break;
199 *ksymp = GDK_F12; break;
201 *ksymp = GDK_F13; break;
203 *ksymp = GDK_F14; break;
205 *ksymp = GDK_F15; break;
207 *ksymp = GDK_F16; break;
209 *ksymp = GDK_F17; break;
211 *ksymp = GDK_F18; break;
213 *ksymp = GDK_F19; break;
215 *ksymp = GDK_F20; break;
217 *ksymp = GDK_F21; break;
219 *ksymp = GDK_F22; break;
221 *ksymp = GDK_F23; break;
223 *ksymp = GDK_F24; break;
225 *ksymp = GDK_Num_Lock; break;
227 *ksymp = GDK_Scroll_Lock; break;
229 *ksymp = GDK_Shift_R; break;
231 *ksymp = GDK_Control_R; break;
233 *ksymp = GDK_Alt_R; break;
238 set_shift_vks (guchar *key_state,
244 key_state[VK_SHIFT] = 0;
245 key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
248 key_state[VK_SHIFT] = 0x80;
249 key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
252 key_state[VK_SHIFT] = 0;
253 key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80;
256 key_state[VK_SHIFT] = 0x80;
257 key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80;
263 reset_after_dead (guchar key_state[256])
265 guchar temp_key_state[256];
268 memmove (temp_key_state, key_state, sizeof (key_state));
270 temp_key_state[VK_SHIFT] =
271 temp_key_state[VK_CONTROL] =
272 temp_key_state[VK_MENU] = 0;
274 ToUnicodeEx (VK_SPACE, MapVirtualKey (VK_SPACE, 0),
275 temp_key_state, wcs, G_N_ELEMENTS (wcs),
276 0, _gdk_input_locale);
280 handle_dead (guint keysym,
285 case '"': /* 0x022 */
286 *ksymp = GDK_dead_diaeresis; break;
287 case '\'': /* 0x027 */
288 *ksymp = GDK_dead_acute; break;
289 case GDK_asciicircum: /* 0x05e */
290 *ksymp = GDK_dead_circumflex; break;
291 case GDK_grave: /* 0x060 */
292 *ksymp = GDK_dead_grave; break;
293 case GDK_asciitilde: /* 0x07e */
294 *ksymp = GDK_dead_tilde; break;
295 case GDK_diaeresis: /* 0x0a8 */
296 *ksymp = GDK_dead_diaeresis; break;
297 case GDK_degree: /* 0x0b0 */
298 *ksymp = GDK_dead_abovering; break;
299 case GDK_acute: /* 0x0b4 */
300 *ksymp = GDK_dead_acute; break;
301 case GDK_periodcentered: /* 0x0b7 */
302 *ksymp = GDK_dead_abovedot; break;
303 case GDK_cedilla: /* 0x0b8 */
304 *ksymp = GDK_dead_cedilla; break;
305 case GDK_breve: /* 0x1a2 */
306 *ksymp = GDK_dead_breve; break;
307 case GDK_ogonek: /* 0x1b2 */
308 *ksymp = GDK_dead_ogonek; break;
309 case GDK_caron: /* 0x1b7 */
310 *ksymp = GDK_dead_caron; break;
311 case GDK_doubleacute: /* 0x1bd */
312 *ksymp = GDK_dead_doubleacute; break;
313 case GDK_abovedot: /* 0x1ff */
314 *ksymp = GDK_dead_abovedot; break;
315 case 0x1000384: /* Greek tonos */
316 *ksymp = GDK_dead_acute; break;
317 case GDK_Greek_accentdieresis: /* 0x7ae */
318 *ksymp = GDK_Greek_accentdieresis; break;
320 /* By default use the keysym as such. This takes care of for
321 * instance the dead U+09CD (BENGALI VIRAMA) on the ekushey
324 *ksymp = keysym; break;
331 static guint current_serial = 0;
332 guchar key_state[256];
335 gboolean capslock_tested = FALSE;
337 if (keysym_tab != NULL && current_serial == _gdk_keymap_serial)
340 current_serial = _gdk_keymap_serial;
342 if (keysym_tab == NULL)
343 keysym_tab = g_new (guint, 4*256);
345 memset (key_state, 0, sizeof (key_state));
347 _gdk_keyboard_has_altgr = FALSE;
348 gdk_shift_modifiers = GDK_SHIFT_MASK;
350 for (vk = 0; vk < 256; vk++)
352 if ((scancode = MapVirtualKey (vk, 0)) == 0 &&
357 keysym_tab[vk*4+3] = GDK_VoidSymbol;
363 _scancode_rshift = scancode;
365 key_state[vk] = 0x80;
366 for (shift = 0; shift < 4; shift++)
368 guint *ksymp = keysym_tab + vk*4 + shift;
371 set_shift_vks (key_state, shift);
375 /* First, handle those virtual keys that we always want
376 * as special GDK_* keysyms, even if ToAsciiEx might
377 * turn some them into a ASCII character (like TAB and
380 handle_special (vk, ksymp, shift);
387 k = ToUnicodeEx (vk, scancode, key_state,
388 wcs, G_N_ELEMENTS (wcs),
389 0, _gdk_input_locale);
391 g_print ("ToUnicodeEx(%02x, %d: %d): %d, %04x %04x\n",
392 vk, scancode, shift, k,
393 (k != 0 ? wcs[0] : 0),
394 (k >= 2 ? wcs[1] : 0));
397 *ksymp = gdk_unicode_to_keyval (wcs[0]);
401 /* Keysym already stored above */
405 guint keysym = gdk_unicode_to_keyval (wcs[0]);
407 /* It is a dead key, and it's has been stored in
408 * the keyboard layout's state by
409 * ToAsciiEx()/ToUnicodeEx(). Yes, this is an
410 * incredibly silly API! Make the keyboard
411 * layout forget it by calling
412 * ToAsciiEx()/ToUnicodeEx() once more, with the
413 * virtual key code and scancode for the
414 * spacebar, without shift or AltGr. Otherwise
415 * the next call to ToAsciiEx() with a different
416 * key would try to combine with the dead key.
418 reset_after_dead (key_state);
420 /* Use dead keysyms instead of "undead" ones */
421 handle_dead (keysym, ksymp);
425 /* Seems to be necessary to "reset" the keyboard layout
426 * in this case, too. Otherwise problems on NT4.
428 reset_after_dead (key_state);
434 g_print ("ToUnicodeEx returns %d "
435 "for vk:%02x, sc:%02x%s%s\n",
437 (shift&0x1 ? " shift" : ""),
438 (shift&0x2 ? " altgr" : "")));
443 *ksymp = GDK_VoidSymbol;
447 /* Check if keyboard has an AltGr key by checking if
448 * the mapping with Control+Alt is different.
450 if (!_gdk_keyboard_has_altgr)
451 if ((keysym_tab[vk*4 + 2] != GDK_VoidSymbol &&
452 keysym_tab[vk*4] != keysym_tab[vk*4 + 2]) ||
453 (keysym_tab[vk*4 + 3] != GDK_VoidSymbol &&
454 keysym_tab[vk*4 + 1] != keysym_tab[vk*4 + 3]))
455 _gdk_keyboard_has_altgr = TRUE;
457 if (!capslock_tested)
459 /* Can we use this virtual key to determine the CapsLock
460 * key behaviour: CapsLock or ShiftLock? If it generates
461 * keysyms for printable characters and has a shifted
462 * keysym that isn't just the upperacase of the
463 * unshifted keysym, check the behaviour of VK_CAPITAL.
465 if (g_unichar_isgraph (gdk_keyval_to_unicode (keysym_tab[vk*4 + 0])) &&
466 keysym_tab[vk*4 + 1] != keysym_tab[vk*4 + 0] &&
467 g_unichar_isgraph (gdk_keyval_to_unicode (keysym_tab[vk*4 + 1])) &&
468 keysym_tab[vk*4 + 1] != gdk_keyval_to_upper (keysym_tab[vk*4 + 0]))
472 capslock_tested = TRUE;
474 key_state[VK_SHIFT] = 0;
475 key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
476 key_state[VK_CAPITAL] = 1;
478 if (ToAsciiEx (vk, scancode, key_state,
479 (LPWORD) chars, 0, _gdk_input_locale) == 1)
481 if (chars[0] >= GDK_space &&
482 chars[0] <= GDK_asciitilde &&
483 chars[0] == keysym_tab[vk*4 + 1])
485 /* CapsLock acts as ShiftLock */
486 gdk_shift_modifiers |= GDK_LOCK_MASK;
489 key_state[VK_CAPITAL] = 0;
494 GDK_NOTE (EVENTS, print_keysym_tab ());
498 gdk_keymap_get_for_display (GdkDisplay *display)
500 g_return_val_if_fail (display == gdk_display_get_default (), NULL);
502 if (default_keymap == NULL)
503 default_keymap = g_object_new (gdk_keymap_get_type (), NULL);
505 return default_keymap;
509 gdk_keymap_get_direction (GdkKeymap *keymap)
513 switch (PRIMARYLANGID (LOWORD ((DWORD) _gdk_input_locale)))
522 return PANGO_DIRECTION_RTL;
525 return PANGO_DIRECTION_LTR;
530 gdk_keymap_get_entries_for_keyval (GdkKeymap *keymap,
537 g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
538 g_return_val_if_fail (keys != NULL, FALSE);
539 g_return_val_if_fail (n_keys != NULL, FALSE);
540 g_return_val_if_fail (keyval != 0, FALSE);
542 retval = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
544 /* Accept only the default keymap */
545 if (keymap == NULL || keymap == gdk_keymap_get_default ())
551 for (vk = 0; vk < 256; vk++)
555 for (i = 0; i < 4; i++)
557 if (keysym_tab[vk*4+i] == keyval)
563 /* 2 levels (normal, shift), two groups (normal, AltGr) */
567 g_array_append_val (retval, key);
573 #ifdef G_ENABLE_DEBUG
574 if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
578 g_print ("gdk_keymap_get_entries_for_keyval: %#.04x (%s):",
579 keyval, gdk_keyval_name (keyval));
580 for (i = 0; i < retval->len; i++)
582 GdkKeymapKey *entry = (GdkKeymapKey *) retval->data + i;
583 g_print (" %#.02x %d %d", entry->keycode, entry->group, entry->level);
591 *keys = (GdkKeymapKey*) retval->data;
592 *n_keys = retval->len;
600 g_array_free (retval, retval->len > 0 ? FALSE : TRUE);
606 gdk_keymap_get_entries_for_keycode (GdkKeymap *keymap,
607 guint hardware_keycode,
613 GArray *keyval_array;
615 g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
616 g_return_val_if_fail (n_entries != NULL, FALSE);
618 if (hardware_keycode <= 0 ||
619 hardware_keycode >= 256)
631 key_array = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
636 keyval_array = g_array_new (FALSE, FALSE, sizeof (guint));
640 /* Accept only the default keymap */
641 if (keymap == NULL || keymap == gdk_keymap_get_default ())
647 for (i = 0; i < 4; i++)
653 key.keycode = hardware_keycode;
658 g_array_append_val (key_array, key);
662 g_array_append_val (keyval_array, keysym_tab[hardware_keycode*4+i]);
666 if ((key_array && key_array->len > 0) ||
667 (keyval_array && keyval_array->len > 0))
670 *keys = (GdkKeymapKey*) key_array->data;
673 *keyvals = (guint*) keyval_array->data;
676 *n_entries = key_array->len;
678 *n_entries = keyval_array->len;
692 g_array_free (key_array, key_array->len > 0 ? FALSE : TRUE);
694 g_array_free (keyval_array, keyval_array->len > 0 ? FALSE : TRUE);
696 return *n_entries > 0;
700 gdk_keymap_lookup_key (GdkKeymap *keymap,
701 const GdkKeymapKey *key)
705 g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), 0);
706 g_return_val_if_fail (key != NULL, 0);
707 g_return_val_if_fail (key->group < 4, 0);
709 /* Accept only the default keymap */
710 if (keymap != NULL && keymap != gdk_keymap_get_default ())
715 if (key->keycode >= 256 ||
716 key->group < 0 || key->group >= 2 ||
717 key->level < 0 || key->level >= 2)
720 sym = keysym_tab[key->keycode*4 + key->group*2 + key->level];
722 if (sym == GDK_VoidSymbol)
729 gdk_keymap_translate_keyboard_state (GdkKeymap *keymap,
730 guint hardware_keycode,
731 GdkModifierType state,
734 gint *effective_group,
736 GdkModifierType *consumed_modifiers)
741 gboolean ignore_shift = FALSE;
742 gboolean ignore_group = FALSE;
744 g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
745 g_return_val_if_fail (group < 4, FALSE);
748 GDK_NOTE (EVENTS, g_print ("gdk_keymap_translate_keyboard_state: keycode=%#x state=%#x group=%d\n",
749 hardware_keycode, state, group));
754 *effective_group = 0;
757 if (consumed_modifiers)
758 *consumed_modifiers = 0;
760 /* Accept only the default keymap */
761 if (keymap != NULL && keymap != gdk_keymap_get_default ())
764 if (hardware_keycode >= 256)
767 if (group < 0 || group >= 2)
772 keyvals = keysym_tab + hardware_keycode*4;
774 if ((state & GDK_LOCK_MASK) &&
775 (state & GDK_SHIFT_MASK) &&
776 ((gdk_shift_modifiers & GDK_LOCK_MASK) ||
777 (keyvals[group*2 + 1] == gdk_keyval_to_upper (keyvals[group*2 + 0]))))
778 /* Shift always disables ShiftLock. Shift disables CapsLock for
779 * keys with lowercase/uppercase letter pairs.
782 else if (state & gdk_shift_modifiers)
787 /* Drop group and shift if there are no keysymbols on
790 if (shift_level == 1 &&
791 keyvals[group*2 + 1] == GDK_VoidSymbol &&
792 keyvals[group*2] != GDK_VoidSymbol)
799 keyvals[2 + shift_level] == GDK_VoidSymbol &&
800 keyvals[0 + shift_level] != GDK_VoidSymbol)
806 if (keyvals[group *2 + shift_level] == GDK_VoidSymbol &&
807 keyvals[0 + 0] != GDK_VoidSymbol)
815 /* See whether the group and shift level actually mattered
816 * to know what to put in consumed_modifiers
818 if (keyvals[group*2 + 1] == GDK_VoidSymbol ||
819 keyvals[group*2 + 0] == keyvals[group*2 + 1])
822 if (keyvals[2 + shift_level] == GDK_VoidSymbol ||
823 keyvals[0 + shift_level] == keyvals[2 + shift_level])
826 tmp_keyval = keyvals[group*2 + shift_level];
828 /* If a true CapsLock is toggled, and Shift is not down,
829 * and the shifted keysym is the uppercase of the unshifted,
832 if (!(gdk_shift_modifiers & GDK_LOCK_MASK) &&
833 !(state & GDK_SHIFT_MASK) &&
834 (state & GDK_LOCK_MASK))
836 guint upper = gdk_keyval_to_upper (tmp_keyval);
837 if (upper == keyvals[group*2 + 1])
842 *keyval = tmp_keyval;
845 *effective_group = group;
848 *level = shift_level;
850 if (consumed_modifiers)
852 *consumed_modifiers =
853 (ignore_group ? 0 : GDK_MOD2_MASK) |
854 (ignore_shift ? 0 : (GDK_SHIFT_MASK|GDK_LOCK_MASK));
858 GDK_NOTE (EVENTS, g_print ("... group=%d level=%d cmods=%#x keyval=%s\n",
859 group, shift_level, tmp_modifiers, gdk_keyval_name (tmp_keyval)));
862 return tmp_keyval != GDK_VoidSymbol;