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gtk/gdk/win32/gdkkeys-win32.c
Fredy Paquet 0a6ee5e2cf W32: Fix for commit 1f74f12d9, re-enabling decimal separator key 
1f74f12d9 rendered entry of keypad decimal mark unuseable for
several national keyboard layouts, this commit amends that, at
least for W32, and makes GTK+ behave more or less the same way
W32 behaves.

The patch works like this:
- When typing the first character at the keyboard or when switching
  keyboard layouts, the decimal mark character will be cached in the
  static variable "decimal_mark" within gdkkeys-win32.c

- in case of WIN32, gdk_keyval_to_unicode() asks gdkkeys-win32.c for the
  current decimal_mark when converting GDK_KEY_KP_Decimal.

https://bugzilla.gnome.org/show_bug.cgi?id=756751
2016-02-26 17:24:32 +00:00

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/* 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, see <http://www.gnu.org/licenses/>.
*/
/*
* 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 "config.h"
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#include "gdk.h"
#include "gdkprivate-win32.h"
#include "gdkinternals.h"
#include "gdkkeysyms.h"
#include "gdkkeysprivate.h"
#include "gdkwin32keys.h"
struct _GdkWin32KeymapClass
{
GdkKeymapClass parent_class;
};
struct _GdkWin32Keymap
{
GdkKeymap parent_instance;
};
G_DEFINE_TYPE (GdkWin32Keymap, gdk_win32_keymap, GDK_TYPE_KEYMAP)
static void
gdk_win32_keymap_init (GdkWin32Keymap *keymap)
{
}
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;
static wchar_t decimal_mark = 0;
#define KEY_STATE_SIZE 256
#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 < KEY_STATE_SIZE; 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_KEY_Cancel; break;
case VK_BACK:
*ksymp = GDK_KEY_BackSpace; break;
case VK_TAB:
if (shift & 0x1)
*ksymp = GDK_KEY_ISO_Left_Tab;
else
*ksymp = GDK_KEY_Tab;
break;
case VK_CLEAR:
*ksymp = GDK_KEY_Clear; break;
case VK_RETURN:
*ksymp = GDK_KEY_Return; break;
case VK_SHIFT:
case VK_LSHIFT:
*ksymp = GDK_KEY_Shift_L; break;
case VK_CONTROL:
case VK_LCONTROL:
*ksymp = GDK_KEY_Control_L; break;
case VK_MENU:
case VK_LMENU:
*ksymp = GDK_KEY_Alt_L; break;
case VK_PAUSE:
*ksymp = GDK_KEY_Pause; break;
case VK_ESCAPE:
*ksymp = GDK_KEY_Escape; break;
case VK_PRIOR:
*ksymp = GDK_KEY_Prior; break;
case VK_NEXT:
*ksymp = GDK_KEY_Next; break;
case VK_END:
*ksymp = GDK_KEY_End; break;
case VK_HOME:
*ksymp = GDK_KEY_Home; break;
case VK_LEFT:
*ksymp = GDK_KEY_Left; break;
case VK_UP:
*ksymp = GDK_KEY_Up; break;
case VK_RIGHT:
*ksymp = GDK_KEY_Right; break;
case VK_DOWN:
*ksymp = GDK_KEY_Down; break;
case VK_SELECT:
*ksymp = GDK_KEY_Select; break;
case VK_PRINT:
*ksymp = GDK_KEY_Print; break;
case VK_SNAPSHOT:
*ksymp = GDK_KEY_Print; break;
case VK_EXECUTE:
*ksymp = GDK_KEY_Execute; break;
case VK_INSERT:
*ksymp = GDK_KEY_Insert; break;
case VK_DELETE:
*ksymp = GDK_KEY_Delete; break;
case VK_HELP:
*ksymp = GDK_KEY_Help; break;
case VK_LWIN:
*ksymp = GDK_KEY_Meta_L; break;
case VK_RWIN:
*ksymp = GDK_KEY_Meta_R; break;
case VK_APPS:
*ksymp = GDK_KEY_Menu; break;
case VK_DECIMAL:
*ksymp = GDK_KEY_KP_Decimal; break;
case VK_MULTIPLY:
*ksymp = GDK_KEY_KP_Multiply; break;
case VK_ADD:
*ksymp = GDK_KEY_KP_Add; break;
case VK_SEPARATOR:
*ksymp = GDK_KEY_KP_Separator; break;
case VK_SUBTRACT:
*ksymp = GDK_KEY_KP_Subtract; break;
case VK_DIVIDE:
*ksymp = GDK_KEY_KP_Divide; break;
case VK_NUMPAD0:
*ksymp = GDK_KEY_KP_0; break;
case VK_NUMPAD1:
*ksymp = GDK_KEY_KP_1; break;
case VK_NUMPAD2:
*ksymp = GDK_KEY_KP_2; break;
case VK_NUMPAD3:
*ksymp = GDK_KEY_KP_3; break;
case VK_NUMPAD4:
*ksymp = GDK_KEY_KP_4; break;
case VK_NUMPAD5:
*ksymp = GDK_KEY_KP_5; break;
case VK_NUMPAD6:
*ksymp = GDK_KEY_KP_6; break;
case VK_NUMPAD7:
*ksymp = GDK_KEY_KP_7; break;
case VK_NUMPAD8:
*ksymp = GDK_KEY_KP_8; break;
case VK_NUMPAD9:
*ksymp = GDK_KEY_KP_9; break;
case VK_F1:
*ksymp = GDK_KEY_F1; break;
case VK_F2:
*ksymp = GDK_KEY_F2; break;
case VK_F3:
*ksymp = GDK_KEY_F3; break;
case VK_F4:
*ksymp = GDK_KEY_F4; break;
case VK_F5:
*ksymp = GDK_KEY_F5; break;
case VK_F6:
*ksymp = GDK_KEY_F6; break;
case VK_F7:
*ksymp = GDK_KEY_F7; break;
case VK_F8:
*ksymp = GDK_KEY_F8; break;
case VK_F9:
*ksymp = GDK_KEY_F9; break;
case VK_F10:
*ksymp = GDK_KEY_F10; break;
case VK_F11:
*ksymp = GDK_KEY_F11; break;
case VK_F12:
*ksymp = GDK_KEY_F12; break;
case VK_F13:
*ksymp = GDK_KEY_F13; break;
case VK_F14:
*ksymp = GDK_KEY_F14; break;
case VK_F15:
*ksymp = GDK_KEY_F15; break;
case VK_F16:
*ksymp = GDK_KEY_F16; break;
case VK_F17:
*ksymp = GDK_KEY_F17; break;
case VK_F18:
*ksymp = GDK_KEY_F18; break;
case VK_F19:
*ksymp = GDK_KEY_F19; break;
case VK_F20:
*ksymp = GDK_KEY_F20; break;
case VK_F21:
*ksymp = GDK_KEY_F21; break;
case VK_F22:
*ksymp = GDK_KEY_F22; break;
case VK_F23:
*ksymp = GDK_KEY_F23; break;
case VK_F24:
*ksymp = GDK_KEY_F24; break;
case VK_NUMLOCK:
*ksymp = GDK_KEY_Num_Lock; break;
case VK_SCROLL:
*ksymp = GDK_KEY_Scroll_Lock; break;
case VK_RSHIFT:
*ksymp = GDK_KEY_Shift_R; break;
case VK_RCONTROL:
*ksymp = GDK_KEY_Control_R; break;
case VK_RMENU:
*ksymp = GDK_KEY_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[KEY_STATE_SIZE])
{
guchar temp_key_state[KEY_STATE_SIZE];
wchar_t wcs[2];
memmove (temp_key_state, key_state, KEY_STATE_SIZE);
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_KEY_dead_diaeresis; break;
case '\'': /* 0x027 */
*ksymp = GDK_KEY_dead_acute; break;
case GDK_KEY_asciicircum: /* 0x05e */
*ksymp = GDK_KEY_dead_circumflex; break;
case GDK_KEY_grave: /* 0x060 */
*ksymp = GDK_KEY_dead_grave; break;
case GDK_KEY_asciitilde: /* 0x07e */
*ksymp = GDK_KEY_dead_tilde; break;
case GDK_KEY_diaeresis: /* 0x0a8 */
*ksymp = GDK_KEY_dead_diaeresis; break;
case GDK_KEY_degree: /* 0x0b0 */
*ksymp = GDK_KEY_dead_abovering; break;
case GDK_KEY_acute: /* 0x0b4 */
*ksymp = GDK_KEY_dead_acute; break;
case GDK_KEY_periodcentered: /* 0x0b7 */
*ksymp = GDK_KEY_dead_abovedot; break;
case GDK_KEY_cedilla: /* 0x0b8 */
*ksymp = GDK_KEY_dead_cedilla; break;
case GDK_KEY_breve: /* 0x1a2 */
*ksymp = GDK_KEY_dead_breve; break;
case GDK_KEY_ogonek: /* 0x1b2 */
*ksymp = GDK_KEY_dead_ogonek; break;
case GDK_KEY_caron: /* 0x1b7 */
*ksymp = GDK_KEY_dead_caron; break;
case GDK_KEY_doubleacute: /* 0x1bd */
*ksymp = GDK_KEY_dead_doubleacute; break;
case GDK_KEY_abovedot: /* 0x1ff */
*ksymp = GDK_KEY_dead_abovedot; break;
case 0x1000384: /* Greek tonos */
*ksymp = GDK_KEY_dead_acute; break;
case GDK_KEY_Greek_accentdieresis: /* 0x7ae */
*ksymp = GDK_KEY_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;
}
}
/* keypad decimal mark depends on active keyboard layout
* return current decimal mark as unicode character
*/
guint32
_gdk_win32_keymap_get_decimal_mark (void)
{
if (decimal_mark)
return (decimal_mark);
return ((guint32) '.');
}
static void
update_keymap (void)
{
static guint current_serial = 0;
guchar key_state[KEY_STATE_SIZE];
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*KEY_STATE_SIZE);
memset (key_state, 0, sizeof (key_state));
_gdk_keyboard_has_altgr = FALSE;
gdk_shift_modifiers = GDK_SHIFT_MASK;
for (vk = 0; vk < KEY_STATE_SIZE; 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_KEY_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) || ((vk == VK_DECIMAL) && (shift == 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 ((vk == VK_DECIMAL) && (shift == 0))
{
if (k == 1)
decimal_mark = wcs[0];
}
else 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 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_KEY_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_KEY_VoidSymbol &&
keysym_tab[vk*4] != keysym_tab[vk*4 + 2]) ||
(keysym_tab[vk*4 + 3] != GDK_KEY_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_KEY_space &&
chars[0] <= GDK_KEY_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_win32_display_get_keymap (GdkDisplay *display)
{
g_return_val_if_fail (display == gdk_display_get_default (), NULL);
if (default_keymap == NULL)
default_keymap = g_object_new (gdk_win32_keymap_get_type (), NULL);
return default_keymap;
}
static PangoDirection
gdk_win32_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;
}
}
static gboolean
gdk_win32_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;
}
static gboolean
gdk_win32_keymap_get_caps_lock_state (GdkKeymap *keymap)
{
return ((GetKeyState (VK_CAPITAL) & 1) != 0);
}
static gboolean
gdk_win32_keymap_get_num_lock_state (GdkKeymap *keymap)
{
return ((GetKeyState (VK_NUMLOCK) & 1) != 0);
}
static gboolean
gdk_win32_keymap_get_scroll_lock_state (GdkKeymap *keymap)
{
return ((GetKeyState (VK_SCROLL) & 1) != 0);
}
static gboolean
gdk_win32_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 < KEY_STATE_SIZE; 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)
{
guint 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;
}
static gboolean
gdk_win32_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 >= KEY_STATE_SIZE)
{
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;
}
static guint
gdk_win32_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 >= KEY_STATE_SIZE ||
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_KEY_VoidSymbol)
return 0;
else
return sym;
}
static gboolean
gdk_win32_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 >= KEY_STATE_SIZE)
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_KEY_VoidSymbol &&
keyvals[group*2] != GDK_KEY_VoidSymbol)
{
shift_level = 0;
ignore_shift = TRUE;
}
if (group == 1 &&
keyvals[2 + shift_level] == GDK_KEY_VoidSymbol &&
keyvals[0 + shift_level] != GDK_KEY_VoidSymbol)
{
group = 0;
ignore_group = TRUE;
}
if (keyvals[group *2 + shift_level] == GDK_KEY_VoidSymbol &&
keyvals[0 + 0] != GDK_KEY_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_KEY_VoidSymbol ||
keyvals[group*2 + 0] == keyvals[group*2 + 1])
ignore_shift = TRUE;
if (keyvals[2 + shift_level] == GDK_KEY_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_KEY_VoidSymbol;
}
static void
gdk_win32_keymap_add_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
}
static gboolean
gdk_win32_keymap_map_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
/* FIXME: Is this the right thing to do? */
return TRUE;
}
static void
gdk_win32_keymap_finalize (GObject *object)
{
}
static void
gdk_win32_keymap_class_init (GdkWin32KeymapClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkKeymapClass *keymap_class = GDK_KEYMAP_CLASS (klass);
object_class->finalize = gdk_win32_keymap_finalize;
keymap_class->get_direction = gdk_win32_keymap_get_direction;
keymap_class->have_bidi_layouts = gdk_win32_keymap_have_bidi_layouts;
keymap_class->get_caps_lock_state = gdk_win32_keymap_get_caps_lock_state;
keymap_class->get_num_lock_state = gdk_win32_keymap_get_num_lock_state;
keymap_class->get_scroll_lock_state = gdk_win32_keymap_get_scroll_lock_state;
keymap_class->get_entries_for_keyval = gdk_win32_keymap_get_entries_for_keyval;
keymap_class->get_entries_for_keycode = gdk_win32_keymap_get_entries_for_keycode;
keymap_class->lookup_key = gdk_win32_keymap_lookup_key;
keymap_class->translate_keyboard_state = gdk_win32_keymap_translate_keyboard_state;
keymap_class->add_virtual_modifiers = gdk_win32_keymap_add_virtual_modifiers;
keymap_class->map_virtual_modifiers = gdk_win32_keymap_map_virtual_modifiers;
}
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