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393ad7381e
gtk2/gdk/win32/gdkkeys-win32.c
Eric Warmenhoven 393ad7381e Move gdk_keval_name and gdk_keyval_from_name to new gdkkeynames.c, share 
Fri Sep 27 14:30:34 2002 Eric Warmenhoven <eric@warmenhoven.org>

	* gdk/Makefile.am gdk/gdkkeynames.c gdk/linux-fb/gdkmain-fb.c
	gdk/win32/gdkkeys-win32.c: Move gdk_keval_name and
	gdk_keyval_from_name to new gdkkeynames.c, share implementation for
	linux-fb and win32 (#94123)

	* gdk/linux-fb/Makefile.am gdk/linux-fb/gdkkeyboard-fb.c
	gdk/linux-fb/gdkmain-fb.c gdk/linux-fb/gdkmouse-fb.c: add
	-DG_DISABLE_DEPRECATED and -DGDK_PIXBUF_DISABLE_DEPRECATED to compile
	flags

	* gdk/linux-fb/gdkdisplay-fb.c: prevent segfault if display can't
	initialize

	* gdk/linux-fb/gdkkeyboard-fb.c: better parsing of keycodes

	* gdk/linux-fb/gdkwindow-fb.c: add stubs for new functions
2002-09-27 21:36:11 +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, 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 <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 "config.h"
guint _gdk_keymap_serial = 0;
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:\n");
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
update_keymap (void)
{
static guint current_serial = 0;
guchar key_state[256];
guint scancode;
guint vk;
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));
for (vk = 0; vk < 256; vk++)
{
if ((scancode = MapVirtualKey (vk, 0)) == 0)
keysym_tab[vk*4+0] =
keysym_tab[vk*4+1] =
keysym_tab[vk*4+2] =
keysym_tab[vk*4+3] = GDK_VoidSymbol;
else
{
gint i, k;
key_state[vk] = 0x80;
for (i = 0; i < 4; i++)
{
guint *ksymp = keysym_tab + vk*4 + i;
guchar chars[2];
switch (i)
{
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;
}
*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).
*/
switch (vk)
{
case VK_CANCEL:
*ksymp = GDK_Cancel; break;
case VK_BACK:
*ksymp = GDK_BackSpace; break;
case VK_TAB:
if (i & 1)
*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_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_DECIMAL:
*ksymp = GDK_KP_Decimal; break;
case VK_DIVIDE:
*ksymp = GDK_KP_Divide; 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;
}
if (*ksymp == 0)
{
if ((k = ToAsciiEx (vk, scancode, key_state,
(LPWORD) chars, 0,
_gdk_input_locale)) == 1)
{
if (_gdk_input_codepage == 1252 &&
chars[0] >= GDK_space && chars[0] <= GDK_asciitilde)
*ksymp = chars[0];
else
{
wchar_t wcs[1];
if (MultiByteToWideChar (_gdk_input_codepage, 0,
chars, 1, wcs, 1) > 0)
*ksymp = gdk_unicode_to_keyval (wcs[0]);
}
}
}
if (*ksymp == 0)
*ksymp = GDK_VoidSymbol;
}
key_state[vk] = 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) _gdk_input_locale)))
{
case LANG_HEBREW:
case LANG_ARABIC:
/* Not 100% sure about these */
#ifdef LANG_URDU
case LANG_URDU:
#endif
case LANG_FARSI:
/* Others? */
return PANGO_DIRECTION_RTL;
default:
return PANGO_DIRECTION_LTR;
}
}
/**
* gdk_keymap_get_entries_for_keyval:
* @keymap: a #GdkKeymap, or %NULL to use the default keymap
* @keyval: a keyval, such as %GDK_a, %GDK_Up, %GDK_Return, etc.
* @keys: return location for an array of #GdkKeymapKey
* @n_keys: return location for number of elements in returned array
*
* Obtains a list of keycode/group/level combinations that will
* generate @keyval. Groups and levels are two kinds of keyboard mode;
* in general, the level determines whether the top or bottom symbol
* on a key is used, and the group determines whether the left or
* right symbol is used. On US keyboards, the shift key changes the
* keyboard level, and there are no groups. A group switch key might
* convert a keyboard between Hebrew to English modes, for example.
* #GdkEventKey contains a %group field that indicates the active
* keyboard group. The level is computed from the modifier mask.
* The returned array should be freed
* with g_free().
*
* Return value: %TRUE if keys were found and returned
**/
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;
}
/**
* gdk_keymap_get_entries_for_keycode:
* @keymap: a #GdkKeymap or %NULL to use the default keymap
* @hardware_keycode: a keycode
* @keys: return location for array of #GdkKeymapKey, or NULL
* @keyvals: return location for array of keyvals, or NULL
* @n_entries: length of @keys and @keyvals
*
* Returns the keyvals bound to @hardware_keycode.
* The Nth #GdkKeymapKey in @keys is bound to the Nth
* keyval in @keyvals. Free the returned arrays with g_free().
* When a keycode is pressed by the user, the keyval from
* this list of entries is selected by considering the effective
* keyboard group and level. See gdk_keymap_translate_keyboard_state().
*
* Returns: %TRUE if there were any entries
**/
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;
}
/**
* gdk_keymap_lookup_key:
* @keymap: a #GdkKeymap or %NULL to use the default keymap
* @key: a #GdkKeymapKey with keycode, group, and level initialized
*
* Looks up the keyval mapped to a keycode/group/level triplet.
* If no keyval is bound to @key, returns 0. For normal user input,
* you want to use gdk_keymap_translate_keyboard_state() instead of
* this function, since the effective group/level may not be
* the same as the current keyboard state.
*
* Return value: a keyval, or 0 if none was mapped to the given @key
**/
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;
}
/**
* gdk_keymap_translate_keyboard_state:
* @keymap: a #GdkKeymap, or %NULL to use the default
* @hardware_keycode: a keycode
* @state: a modifier state
* @group: active keyboard group
* @keyval: return location for keyval
* @effective_group: return location for effective group
* @level: return location for level
* @consumed_modifiers: return location for modifiers that were used to determine the group or level
*
*
* Translates the contents of a #GdkEventKey into a keyval, effective
* group, and level. Modifiers that affected the translation and
* are thus unavailable for application use are returned in
* @consumed_modifiers. See gdk_keyval_get_keys() for an explanation of
* groups and levels. The @effective_group is the group that was
* actually used for the translation; some keys such as Enter are not
* affected by the active keyboard group. The @level is derived from
* @state. For convenience, #GdkEventKey already contains the translated
* keyval, so this function isn't as useful as you might think.
*
* Return value: %TRUE if there was a keyval bound to the keycode/state/group
**/
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 tmp_modifiers;
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);
GDK_NOTE (EVENTS, g_print ("gdk_keymap_translate_keyboard_state: keycode=%#x state=%#x group=%d\n",
hardware_keycode, state, group));
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;
if ((state & GDK_SHIFT_MASK) && (state & GDK_LOCK_MASK))
shift_level = 0; /* shift disables shift lock */
else if ((state & GDK_SHIFT_MASK) || (state & GDK_LOCK_MASK))
shift_level = 1;
else
shift_level = 0;
update_keymap ();
keyvals = keysym_tab + hardware_keycode*4;
/* 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];
tmp_modifiers = ignore_group ? 0 : GDK_MOD2_MASK;
tmp_modifiers |= ignore_shift ? 0 : (GDK_SHIFT_MASK | GDK_LOCK_MASK);
if (effective_group)
*effective_group = group;
if (level)
*level = shift_level;
if (consumed_modifiers)
*consumed_modifiers = tmp_modifiers;
if (keyval)
*keyval = tmp_keyval;
GDK_NOTE (EVENTS, g_print ("...group=%d level=%d cmods=%#x keyval=%s\n",
group, shift_level, tmp_modifiers, gdk_keyval_name (tmp_keyval)));
return tmp_keyval != GDK_VoidSymbol;
}
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