/* GDK - The GIMP Drawing Kit * Copyright (C) 2000 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include #include #include #include #include #include #include "gdk.h" #include "gdkprivate-win32.h" #include "gdkinternals.h" #include "gdkkeysyms.h" #include "config.h" guint _gdk_keymap_serial = 0; gboolean _gdk_keyboard_has_altgr = FALSE; guint _scancode_rshift = 0; static GdkModifierType gdk_shift_modifiers = GDK_SHIFT_MASK; static GdkKeymap *default_keymap = NULL; static guint *keysym_tab = NULL; #ifdef G_ENABLE_DEBUG static void print_keysym_tab (void) { gint vk; g_print ("keymap:%s%s\n", _gdk_keyboard_has_altgr ? " (uses AltGr)" : "", (gdk_shift_modifiers & GDK_LOCK_MASK) ? " (has ShiftLock)" : ""); for (vk = 0; vk < 256; vk++) { gint state; g_print ("%#.02x: ", vk); for (state = 0; state < 4; state++) { gchar *name = gdk_keyval_name (keysym_tab[vk*4 + state]); if (name == NULL) name = "(none)"; g_print ("%s ", name); } g_print ("\n"); } } #endif static void handle_special (guint vk, guint *ksymp, gint shift) { switch (vk) { case VK_CANCEL: *ksymp = GDK_Cancel; break; case VK_BACK: *ksymp = GDK_BackSpace; break; case VK_TAB: if (shift & 0x1) *ksymp = GDK_ISO_Left_Tab; else *ksymp = GDK_Tab; break; case VK_CLEAR: *ksymp = GDK_Clear; break; case VK_RETURN: *ksymp = GDK_Return; break; case VK_SHIFT: case VK_LSHIFT: *ksymp = GDK_Shift_L; break; case VK_CONTROL: case VK_LCONTROL: *ksymp = GDK_Control_L; break; case VK_MENU: case VK_LMENU: *ksymp = GDK_Alt_L; break; case VK_PAUSE: *ksymp = GDK_Pause; break; case VK_ESCAPE: *ksymp = GDK_Escape; break; case VK_PRIOR: *ksymp = GDK_Prior; break; case VK_NEXT: *ksymp = GDK_Next; break; case VK_END: *ksymp = GDK_End; break; case VK_HOME: *ksymp = GDK_Home; break; case VK_LEFT: *ksymp = GDK_Left; break; case VK_UP: *ksymp = GDK_Up; break; case VK_RIGHT: *ksymp = GDK_Right; break; case VK_DOWN: *ksymp = GDK_Down; break; case VK_SELECT: *ksymp = GDK_Select; break; case VK_PRINT: *ksymp = GDK_Print; break; case VK_EXECUTE: *ksymp = GDK_Execute; break; case VK_INSERT: *ksymp = GDK_Insert; break; case VK_DELETE: *ksymp = GDK_Delete; break; case VK_HELP: *ksymp = GDK_Help; break; case VK_LWIN: *ksymp = GDK_Meta_L; break; case VK_RWIN: *ksymp = GDK_Meta_R; break; case VK_APPS: *ksymp = GDK_Menu; break; case VK_MULTIPLY: *ksymp = GDK_KP_Multiply; break; case VK_ADD: *ksymp = GDK_KP_Add; break; case VK_SEPARATOR: *ksymp = GDK_KP_Separator; break; case VK_SUBTRACT: *ksymp = GDK_KP_Subtract; break; case VK_DIVIDE: *ksymp = GDK_KP_Divide; break; case VK_NUMPAD0: *ksymp = GDK_KP_0; break; case VK_NUMPAD1: *ksymp = GDK_KP_1; break; case VK_NUMPAD2: *ksymp = GDK_KP_2; break; case VK_NUMPAD3: *ksymp = GDK_KP_3; break; case VK_NUMPAD4: *ksymp = GDK_KP_4; break; case VK_NUMPAD5: *ksymp = GDK_KP_5; break; case VK_NUMPAD6: *ksymp = GDK_KP_6; break; case VK_NUMPAD7: *ksymp = GDK_KP_7; break; case VK_NUMPAD8: *ksymp = GDK_KP_8; break; case VK_NUMPAD9: *ksymp = GDK_KP_9; break; case VK_F1: *ksymp = GDK_F1; break; case VK_F2: *ksymp = GDK_F2; break; case VK_F3: *ksymp = GDK_F3; break; case VK_F4: *ksymp = GDK_F4; break; case VK_F5: *ksymp = GDK_F5; break; case VK_F6: *ksymp = GDK_F6; break; case VK_F7: *ksymp = GDK_F7; break; case VK_F8: *ksymp = GDK_F8; break; case VK_F9: *ksymp = GDK_F9; break; case VK_F10: *ksymp = GDK_F10; break; case VK_F11: *ksymp = GDK_F11; break; case VK_F12: *ksymp = GDK_F12; break; case VK_F13: *ksymp = GDK_F13; break; case VK_F14: *ksymp = GDK_F14; break; case VK_F15: *ksymp = GDK_F15; break; case VK_F16: *ksymp = GDK_F16; break; case VK_F17: *ksymp = GDK_F17; break; case VK_F18: *ksymp = GDK_F18; break; case VK_F19: *ksymp = GDK_F19; break; case VK_F20: *ksymp = GDK_F20; break; case VK_F21: *ksymp = GDK_F21; break; case VK_F22: *ksymp = GDK_F22; break; case VK_F23: *ksymp = GDK_F23; break; case VK_F24: *ksymp = GDK_F24; break; case VK_NUMLOCK: *ksymp = GDK_Num_Lock; break; case VK_SCROLL: *ksymp = GDK_Scroll_Lock; break; case VK_RSHIFT: *ksymp = GDK_Shift_R; break; case VK_RCONTROL: *ksymp = GDK_Control_R; break; case VK_RMENU: *ksymp = GDK_Alt_R; break; } } static void set_shift_vks (guchar *key_state, gint shift) { switch (shift) { case 0: key_state[VK_SHIFT] = 0; key_state[VK_CONTROL] = key_state[VK_MENU] = 0; break; case 1: key_state[VK_SHIFT] = 0x80; key_state[VK_CONTROL] = key_state[VK_MENU] = 0; break; case 2: key_state[VK_SHIFT] = 0; key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80; break; case 3: key_state[VK_SHIFT] = 0x80; key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80; break; } } static void reset_after_dead (guchar key_state[256]) { guchar temp_key_state[256]; wchar_t wcs[2]; memmove (temp_key_state, key_state, sizeof (key_state)); temp_key_state[VK_SHIFT] = temp_key_state[VK_CONTROL] = temp_key_state[VK_MENU] = 0; ToUnicodeEx (VK_SPACE, MapVirtualKey (VK_SPACE, 0), temp_key_state, wcs, G_N_ELEMENTS (wcs), 0, _gdk_input_locale); } static void handle_dead (guint keysym, guint *ksymp) { switch (keysym) { case '"': /* 0x022 */ *ksymp = GDK_dead_diaeresis; break; case '\'': /* 0x027 */ *ksymp = GDK_dead_acute; break; case GDK_asciicircum: /* 0x05e */ *ksymp = GDK_dead_circumflex; break; case GDK_grave: /* 0x060 */ *ksymp = GDK_dead_grave; break; case GDK_asciitilde: /* 0x07e */ *ksymp = GDK_dead_tilde; break; case GDK_diaeresis: /* 0x0a8 */ *ksymp = GDK_dead_diaeresis; break; case GDK_degree: /* 0x0b0 */ *ksymp = GDK_dead_abovering; break; case GDK_acute: /* 0x0b4 */ *ksymp = GDK_dead_acute; break; case GDK_periodcentered: /* 0x0b7 */ *ksymp = GDK_dead_abovedot; break; case GDK_cedilla: /* 0x0b8 */ *ksymp = GDK_dead_cedilla; break; case GDK_breve: /* 0x1a2 */ *ksymp = GDK_dead_breve; break; case GDK_ogonek: /* 0x1b2 */ *ksymp = GDK_dead_ogonek; break; case GDK_caron: /* 0x1b7 */ *ksymp = GDK_dead_caron; break; case GDK_doubleacute: /* 0x1bd */ *ksymp = GDK_dead_doubleacute; break; case GDK_abovedot: /* 0x1ff */ *ksymp = GDK_dead_abovedot; break; case 0x1000384: /* Greek tonos */ *ksymp = GDK_dead_acute; break; case GDK_Greek_accentdieresis: /* 0x7ae */ *ksymp = GDK_Greek_accentdieresis; break; default: /* By default use the keysym as such. This takes care of for * instance the dead U+09CD (BENGALI VIRAMA) on the ekushey * Bengali layout. */ *ksymp = keysym; break; } } static void update_keymap (void) { static guint current_serial = 0; guchar key_state[256]; guint scancode; guint vk; gboolean capslock_tested = FALSE; if (keysym_tab != NULL && current_serial == _gdk_keymap_serial) return; current_serial = _gdk_keymap_serial; if (keysym_tab == NULL) keysym_tab = g_new (guint, 4*256); memset (key_state, 0, sizeof (key_state)); _gdk_keyboard_has_altgr = FALSE; gdk_shift_modifiers = GDK_SHIFT_MASK; for (vk = 0; vk < 256; vk++) { if ((scancode = MapVirtualKey (vk, 0)) == 0 && vk != VK_DIVIDE) keysym_tab[vk*4+0] = keysym_tab[vk*4+1] = keysym_tab[vk*4+2] = keysym_tab[vk*4+3] = GDK_VoidSymbol; else { gint shift; if (vk == VK_RSHIFT) _scancode_rshift = scancode; key_state[vk] = 0x80; for (shift = 0; shift < 4; shift++) { guint *ksymp = keysym_tab + vk*4 + shift; set_shift_vks (key_state, shift); *ksymp = 0; /* First, handle those virtual keys that we always want * as special GDK_* keysyms, even if ToAsciiEx might * turn some them into a ASCII character (like TAB and * ESC). */ handle_special (vk, ksymp, shift); if (*ksymp == 0) { wchar_t wcs[10]; gint k; wcs[0] = wcs[1] = 0; k = ToUnicodeEx (vk, scancode, key_state, wcs, G_N_ELEMENTS (wcs), 0, _gdk_input_locale); #if 0 g_print ("ToUnicodeEx(%#02x, %d: %d): %d, %04x %04x\n", vk, scancode, shift, k, wcs[0], wcs[1]); #endif if (k == 1) *ksymp = gdk_unicode_to_keyval (wcs[0]); else if (k == -1) { guint keysym = gdk_unicode_to_keyval (wcs[0]); /* It is a dead key, and it's has been stored in * the keyboard layout's state by * ToAsciiEx()/ToUnicodeEx(). Yes, this is an * incredibly silly API! Make the keyboard * layout forget it by calling * ToAsciiEx()/ToUnicodeEx() once more, with the * virtual key code and scancode for the * spacebar, without shift or AltGr. Otherwise * the next call to ToAsciiEx() with a different * key would try to combine with the dead key. */ reset_after_dead (key_state); /* Use dead keysyms instead of "undead" ones */ handle_dead (keysym, ksymp); } else if (k == 0) { /* Seems to be necessary to "reset" the keyboard layout * in this case, too. Otherwise problems on NT4. */ reset_after_dead (key_state); } else { #if 0 GDK_NOTE (EVENTS, g_print ("ToUnicodeEx returns %d " "for vk:%02x, sc:%02x%s%s\n", k, vk, scancode, (shift&0x1 ? " shift" : ""), (shift&0x2 ? " altgr" : ""))); #endif } } if (*ksymp == 0) *ksymp = GDK_VoidSymbol; } key_state[vk] = 0; /* Check if keyboard has an AltGr key by checking if * the mapping with Control+Alt is different. */ if (!_gdk_keyboard_has_altgr) if ((keysym_tab[vk*4 + 2] != GDK_VoidSymbol && keysym_tab[vk*4] != keysym_tab[vk*4 + 2]) || (keysym_tab[vk*4 + 3] != GDK_VoidSymbol && keysym_tab[vk*4 + 1] != keysym_tab[vk*4 + 3])) _gdk_keyboard_has_altgr = TRUE; if (!capslock_tested) { /* Can we use this virtual key to determine the CapsLock * key behaviour: CapsLock or ShiftLock? If it generates * keysyms for printable characters and has a shifted * keysym that isn't just the upperacase of the * unshifted keysym, check the behaviour of VK_CAPITAL. */ if (g_unichar_isgraph (gdk_keyval_to_unicode (keysym_tab[vk*4 + 0])) && keysym_tab[vk*4 + 1] != keysym_tab[vk*4 + 0] && g_unichar_isgraph (gdk_keyval_to_unicode (keysym_tab[vk*4 + 1])) && keysym_tab[vk*4 + 1] != gdk_keyval_to_upper (keysym_tab[vk*4 + 0])) { guchar chars[2]; capslock_tested = TRUE; key_state[VK_SHIFT] = 0; key_state[VK_CONTROL] = key_state[VK_MENU] = 0; key_state[VK_CAPITAL] = 1; if (ToAsciiEx (vk, scancode, key_state, (LPWORD) chars, 0, _gdk_input_locale) == 1) { if (chars[0] >= GDK_space && chars[0] <= GDK_asciitilde && chars[0] == keysym_tab[vk*4 + 1]) { /* CapsLock acts as ShiftLock */ gdk_shift_modifiers |= GDK_LOCK_MASK; } } key_state[VK_CAPITAL] = 0; } } } } GDK_NOTE (EVENTS, print_keysym_tab ()); } GdkKeymap* gdk_keymap_get_for_display (GdkDisplay *display) { g_return_val_if_fail (display == gdk_display_get_default (), NULL); if (default_keymap == NULL) default_keymap = g_object_new (gdk_keymap_get_type (), NULL); return default_keymap; } PangoDirection gdk_keymap_get_direction (GdkKeymap *keymap) { update_keymap (); switch (PRIMARYLANGID (LOWORD ((DWORD) (gintptr) _gdk_input_locale))) { case LANG_HEBREW: case LANG_ARABIC: #ifdef LANG_URDU case LANG_URDU: #endif case LANG_FARSI: /* Others? */ return PANGO_DIRECTION_RTL; default: return PANGO_DIRECTION_LTR; } } gboolean gdk_keymap_have_bidi_layouts (GdkKeymap *keymap) { /* Should we check if the kayboard layouts switchable at the moment * cover both directionalities? What does the doc comment in * ../x11/gdkkeys-x11.c exactly mean? */ return FALSE; } gboolean gdk_keymap_get_caps_lock_state (GdkKeymap *keymap) { return ((GetKeyState (VK_CAPITAL) & 1) != 0); } gboolean gdk_keymap_get_entries_for_keyval (GdkKeymap *keymap, guint keyval, GdkKeymapKey **keys, gint *n_keys) { GArray *retval; g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE); g_return_val_if_fail (keys != NULL, FALSE); g_return_val_if_fail (n_keys != NULL, FALSE); g_return_val_if_fail (keyval != 0, FALSE); retval = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey)); /* Accept only the default keymap */ if (keymap == NULL || keymap == gdk_keymap_get_default ()) { gint vk; update_keymap (); for (vk = 0; vk < 256; vk++) { gint i; for (i = 0; i < 4; i++) { if (keysym_tab[vk*4+i] == keyval) { GdkKeymapKey key; key.keycode = vk; /* 2 levels (normal, shift), two groups (normal, AltGr) */ key.group = i / 2; key.level = i % 2; g_array_append_val (retval, key); } } } } #ifdef G_ENABLE_DEBUG if (_gdk_debug_flags & GDK_DEBUG_EVENTS) { gint i; g_print ("gdk_keymap_get_entries_for_keyval: %#.04x (%s):", keyval, gdk_keyval_name (keyval)); for (i = 0; i < retval->len; i++) { GdkKeymapKey *entry = (GdkKeymapKey *) retval->data + i; g_print (" %#.02x %d %d", entry->keycode, entry->group, entry->level); } g_print ("\n"); } #endif if (retval->len > 0) { *keys = (GdkKeymapKey*) retval->data; *n_keys = retval->len; } else { *keys = NULL; *n_keys = 0; } g_array_free (retval, retval->len > 0 ? FALSE : TRUE); return *n_keys > 0; } gboolean gdk_keymap_get_entries_for_keycode (GdkKeymap *keymap, guint hardware_keycode, GdkKeymapKey **keys, guint **keyvals, gint *n_entries) { GArray *key_array; GArray *keyval_array; g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE); g_return_val_if_fail (n_entries != NULL, FALSE); if (hardware_keycode <= 0 || hardware_keycode >= 256) { if (keys) *keys = NULL; if (keyvals) *keyvals = NULL; *n_entries = 0; return FALSE; } if (keys) key_array = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey)); else key_array = NULL; if (keyvals) keyval_array = g_array_new (FALSE, FALSE, sizeof (guint)); else keyval_array = NULL; /* Accept only the default keymap */ if (keymap == NULL || keymap == gdk_keymap_get_default ()) { gint i; update_keymap (); for (i = 0; i < 4; i++) { if (key_array) { GdkKeymapKey key; key.keycode = hardware_keycode; key.group = i / 2; key.level = i % 2; g_array_append_val (key_array, key); } if (keyval_array) g_array_append_val (keyval_array, keysym_tab[hardware_keycode*4+i]); } } if ((key_array && key_array->len > 0) || (keyval_array && keyval_array->len > 0)) { if (keys) *keys = (GdkKeymapKey*) key_array->data; if (keyvals) *keyvals = (guint*) keyval_array->data; if (key_array) *n_entries = key_array->len; else *n_entries = keyval_array->len; } else { if (keys) *keys = NULL; if (keyvals) *keyvals = NULL; *n_entries = 0; } if (key_array) g_array_free (key_array, key_array->len > 0 ? FALSE : TRUE); if (keyval_array) g_array_free (keyval_array, keyval_array->len > 0 ? FALSE : TRUE); return *n_entries > 0; } guint gdk_keymap_lookup_key (GdkKeymap *keymap, const GdkKeymapKey *key) { guint sym; g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), 0); g_return_val_if_fail (key != NULL, 0); g_return_val_if_fail (key->group < 4, 0); /* Accept only the default keymap */ if (keymap != NULL && keymap != gdk_keymap_get_default ()) return 0; update_keymap (); if (key->keycode >= 256 || key->group < 0 || key->group >= 2 || key->level < 0 || key->level >= 2) return 0; sym = keysym_tab[key->keycode*4 + key->group*2 + key->level]; if (sym == GDK_VoidSymbol) return 0; else return sym; } gboolean gdk_keymap_translate_keyboard_state (GdkKeymap *keymap, guint hardware_keycode, GdkModifierType state, gint group, guint *keyval, gint *effective_group, gint *level, GdkModifierType *consumed_modifiers) { guint tmp_keyval; guint *keyvals; gint shift_level; gboolean ignore_shift = FALSE; gboolean ignore_group = FALSE; g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE); g_return_val_if_fail (group < 4, FALSE); #if 0 GDK_NOTE (EVENTS, g_print ("gdk_keymap_translate_keyboard_state: keycode=%#x state=%#x group=%d\n", hardware_keycode, state, group)); #endif if (keyval) *keyval = 0; if (effective_group) *effective_group = 0; if (level) *level = 0; if (consumed_modifiers) *consumed_modifiers = 0; /* Accept only the default keymap */ if (keymap != NULL && keymap != gdk_keymap_get_default ()) return FALSE; if (hardware_keycode >= 256) return FALSE; if (group < 0 || group >= 2) return FALSE; update_keymap (); keyvals = keysym_tab + hardware_keycode*4; if ((state & GDK_LOCK_MASK) && (state & GDK_SHIFT_MASK) && ((gdk_shift_modifiers & GDK_LOCK_MASK) || (keyvals[group*2 + 1] == gdk_keyval_to_upper (keyvals[group*2 + 0])))) /* Shift always disables ShiftLock. Shift disables CapsLock for * keys with lowercase/uppercase letter pairs. */ shift_level = 0; else if (state & gdk_shift_modifiers) shift_level = 1; else shift_level = 0; /* Drop group and shift if there are no keysymbols on * the key for those. */ if (shift_level == 1 && keyvals[group*2 + 1] == GDK_VoidSymbol && keyvals[group*2] != GDK_VoidSymbol) { shift_level = 0; ignore_shift = TRUE; } if (group == 1 && keyvals[2 + shift_level] == GDK_VoidSymbol && keyvals[0 + shift_level] != GDK_VoidSymbol) { group = 0; ignore_group = TRUE; } if (keyvals[group *2 + shift_level] == GDK_VoidSymbol && keyvals[0 + 0] != GDK_VoidSymbol) { shift_level = 0; group = 0; ignore_group = TRUE; ignore_shift = TRUE; } /* See whether the group and shift level actually mattered * to know what to put in consumed_modifiers */ if (keyvals[group*2 + 1] == GDK_VoidSymbol || keyvals[group*2 + 0] == keyvals[group*2 + 1]) ignore_shift = TRUE; if (keyvals[2 + shift_level] == GDK_VoidSymbol || keyvals[0 + shift_level] == keyvals[2 + shift_level]) ignore_group = TRUE; tmp_keyval = keyvals[group*2 + shift_level]; /* If a true CapsLock is toggled, and Shift is not down, * and the shifted keysym is the uppercase of the unshifted, * use it. */ if (!(gdk_shift_modifiers & GDK_LOCK_MASK) && !(state & GDK_SHIFT_MASK) && (state & GDK_LOCK_MASK)) { guint upper = gdk_keyval_to_upper (tmp_keyval); if (upper == keyvals[group*2 + 1]) tmp_keyval = upper; } if (keyval) *keyval = tmp_keyval; if (effective_group) *effective_group = group; if (level) *level = shift_level; if (consumed_modifiers) { *consumed_modifiers = (ignore_group ? 0 : GDK_MOD2_MASK) | (ignore_shift ? 0 : (GDK_SHIFT_MASK|GDK_LOCK_MASK)); } #if 0 GDK_NOTE (EVENTS, g_print ("... group=%d level=%d cmods=%#x keyval=%s\n", group, shift_level, tmp_modifiers, gdk_keyval_name (tmp_keyval))); #endif return tmp_keyval != GDK_VoidSymbol; } gboolean gdk_keymap_map_virtual_modifiers (GdkKeymap *keymap, GdkModifierType *state) { /* FIXME: Is this the right thing to do? */ return TRUE; }