mirror of
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314 lines
9.4 KiB
C
314 lines
9.4 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2000 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gdkdisplay.h"
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#include "gdkkeys.h"
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enum {
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DIRECTION_CHANGED,
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KEYS_CHANGED,
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STATE_CHANGED,
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LAST_SIGNAL
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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G_DEFINE_TYPE (GdkKeymap, gdk_keymap, G_TYPE_OBJECT)
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static void
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gdk_keymap_class_init (GdkKeymapClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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/**
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* GdkKeymap::direction-changed:
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* @keymap: the object on which the signal is emitted
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*
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* The ::direction-changed signal gets emitted when the direction of
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* the keymap changes.
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*
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* Since: 2.0
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*/
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signals[DIRECTION_CHANGED] =
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g_signal_new ("direction-changed",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GdkKeymapClass, direction_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE,
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0);
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/**
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* GdkKeymap::keys-changed:
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* @keymap: the object on which the signal is emitted
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*
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* The ::keys-changed signal is emitted when the mapping represented by
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* @keymap changes.
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*
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* Since: 2.2
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*/
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signals[KEYS_CHANGED] =
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g_signal_new ("keys-changed",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GdkKeymapClass, keys_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE,
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0);
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/**
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* GdkKeymap::state-changed:
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* @keymap: the object on which the signal is emitted
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*
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* The ::state-changed signal is emitted when the state of the
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* keyboard changes, e.g when Caps Lock is turned on or off.
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* See gdk_keymap_get_caps_lock_state().
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*
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* Since: 2.16
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*/
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signals[STATE_CHANGED] =
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g_signal_new ("state_changed",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GdkKeymapClass, state_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE,
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0);
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}
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static void
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gdk_keymap_init (GdkKeymap *keymap)
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{
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}
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/* Other key-handling stuff
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*/
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#ifndef HAVE_XCONVERTCASE
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#include "gdkkeysyms.h"
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/* compatibility function from X11R6.3, since XConvertCase is not
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* supplied by X11R5.
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*/
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/**
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* gdk_keyval_convert_case:
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* @symbol: a keyval
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* @lower: (out): return location for lowercase version of @symbol
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* @upper: (out): return location for uppercase version of @symbol
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*
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* Obtains the upper- and lower-case versions of the keyval @symbol.
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* Examples of keyvals are #GDK_a, #GDK_Enter, #GDK_F1, etc.
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*
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**/
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void
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gdk_keyval_convert_case (guint symbol,
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guint *lower,
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guint *upper)
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{
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guint xlower = symbol;
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guint xupper = symbol;
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/* Check for directly encoded 24-bit UCS characters: */
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if ((symbol & 0xff000000) == 0x01000000)
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{
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if (lower)
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*lower = gdk_unicode_to_keyval (g_unichar_tolower (symbol & 0x00ffffff));
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if (upper)
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*upper = gdk_unicode_to_keyval (g_unichar_toupper (symbol & 0x00ffffff));
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return;
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}
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switch (symbol >> 8)
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{
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case 0: /* Latin 1 */
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if ((symbol >= GDK_A) && (symbol <= GDK_Z))
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xlower += (GDK_a - GDK_A);
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else if ((symbol >= GDK_a) && (symbol <= GDK_z))
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xupper -= (GDK_a - GDK_A);
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else if ((symbol >= GDK_Agrave) && (symbol <= GDK_Odiaeresis))
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xlower += (GDK_agrave - GDK_Agrave);
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else if ((symbol >= GDK_agrave) && (symbol <= GDK_odiaeresis))
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xupper -= (GDK_agrave - GDK_Agrave);
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else if ((symbol >= GDK_Ooblique) && (symbol <= GDK_Thorn))
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xlower += (GDK_oslash - GDK_Ooblique);
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else if ((symbol >= GDK_oslash) && (symbol <= GDK_thorn))
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xupper -= (GDK_oslash - GDK_Ooblique);
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break;
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case 1: /* Latin 2 */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol == GDK_Aogonek)
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xlower = GDK_aogonek;
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else if (symbol >= GDK_Lstroke && symbol <= GDK_Sacute)
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xlower += (GDK_lstroke - GDK_Lstroke);
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else if (symbol >= GDK_Scaron && symbol <= GDK_Zacute)
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xlower += (GDK_scaron - GDK_Scaron);
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else if (symbol >= GDK_Zcaron && symbol <= GDK_Zabovedot)
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xlower += (GDK_zcaron - GDK_Zcaron);
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else if (symbol == GDK_aogonek)
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xupper = GDK_Aogonek;
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else if (symbol >= GDK_lstroke && symbol <= GDK_sacute)
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xupper -= (GDK_lstroke - GDK_Lstroke);
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else if (symbol >= GDK_scaron && symbol <= GDK_zacute)
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xupper -= (GDK_scaron - GDK_Scaron);
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else if (symbol >= GDK_zcaron && symbol <= GDK_zabovedot)
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xupper -= (GDK_zcaron - GDK_Zcaron);
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else if (symbol >= GDK_Racute && symbol <= GDK_Tcedilla)
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xlower += (GDK_racute - GDK_Racute);
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else if (symbol >= GDK_racute && symbol <= GDK_tcedilla)
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xupper -= (GDK_racute - GDK_Racute);
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break;
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case 2: /* Latin 3 */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= GDK_Hstroke && symbol <= GDK_Hcircumflex)
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xlower += (GDK_hstroke - GDK_Hstroke);
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else if (symbol >= GDK_Gbreve && symbol <= GDK_Jcircumflex)
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xlower += (GDK_gbreve - GDK_Gbreve);
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else if (symbol >= GDK_hstroke && symbol <= GDK_hcircumflex)
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xupper -= (GDK_hstroke - GDK_Hstroke);
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else if (symbol >= GDK_gbreve && symbol <= GDK_jcircumflex)
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xupper -= (GDK_gbreve - GDK_Gbreve);
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else if (symbol >= GDK_Cabovedot && symbol <= GDK_Scircumflex)
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xlower += (GDK_cabovedot - GDK_Cabovedot);
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else if (symbol >= GDK_cabovedot && symbol <= GDK_scircumflex)
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xupper -= (GDK_cabovedot - GDK_Cabovedot);
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break;
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case 3: /* Latin 4 */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= GDK_Rcedilla && symbol <= GDK_Tslash)
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xlower += (GDK_rcedilla - GDK_Rcedilla);
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else if (symbol >= GDK_rcedilla && symbol <= GDK_tslash)
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xupper -= (GDK_rcedilla - GDK_Rcedilla);
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else if (symbol == GDK_ENG)
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xlower = GDK_eng;
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else if (symbol == GDK_eng)
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xupper = GDK_ENG;
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else if (symbol >= GDK_Amacron && symbol <= GDK_Umacron)
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xlower += (GDK_amacron - GDK_Amacron);
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else if (symbol >= GDK_amacron && symbol <= GDK_umacron)
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xupper -= (GDK_amacron - GDK_Amacron);
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break;
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case 6: /* Cyrillic */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= GDK_Serbian_DJE && symbol <= GDK_Serbian_DZE)
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xlower -= (GDK_Serbian_DJE - GDK_Serbian_dje);
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else if (symbol >= GDK_Serbian_dje && symbol <= GDK_Serbian_dze)
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xupper += (GDK_Serbian_DJE - GDK_Serbian_dje);
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else if (symbol >= GDK_Cyrillic_YU && symbol <= GDK_Cyrillic_HARDSIGN)
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xlower -= (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
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else if (symbol >= GDK_Cyrillic_yu && symbol <= GDK_Cyrillic_hardsign)
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xupper += (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
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break;
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case 7: /* Greek */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= GDK_Greek_ALPHAaccent && symbol <= GDK_Greek_OMEGAaccent)
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xlower += (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
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else if (symbol >= GDK_Greek_alphaaccent && symbol <= GDK_Greek_omegaaccent &&
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symbol != GDK_Greek_iotaaccentdieresis &&
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symbol != GDK_Greek_upsilonaccentdieresis)
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xupper -= (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
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else if (symbol >= GDK_Greek_ALPHA && symbol <= GDK_Greek_OMEGA)
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xlower += (GDK_Greek_alpha - GDK_Greek_ALPHA);
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else if (symbol >= GDK_Greek_alpha && symbol <= GDK_Greek_omega &&
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symbol != GDK_Greek_finalsmallsigma)
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xupper -= (GDK_Greek_alpha - GDK_Greek_ALPHA);
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break;
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}
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if (lower)
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*lower = xlower;
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if (upper)
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*upper = xupper;
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}
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#endif
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guint
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gdk_keyval_to_upper (guint keyval)
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{
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guint result;
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gdk_keyval_convert_case (keyval, NULL, &result);
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return result;
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}
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guint
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gdk_keyval_to_lower (guint keyval)
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{
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guint result;
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gdk_keyval_convert_case (keyval, &result, NULL);
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return result;
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}
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gboolean
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gdk_keyval_is_upper (guint keyval)
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{
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if (keyval)
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{
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guint upper_val = 0;
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gdk_keyval_convert_case (keyval, NULL, &upper_val);
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return upper_val == keyval;
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}
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return FALSE;
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}
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gboolean
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gdk_keyval_is_lower (guint keyval)
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{
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if (keyval)
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{
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guint lower_val = 0;
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gdk_keyval_convert_case (keyval, &lower_val, NULL);
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return lower_val == keyval;
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}
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return FALSE;
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}
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/**
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* gdk_keymap_get_default:
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* @returns: the #GdkKeymap attached to the default display.
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*
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* Returns the #GdkKeymap attached to the default display.
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**/
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GdkKeymap*
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gdk_keymap_get_default (void)
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{
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return gdk_keymap_get_for_display (gdk_display_get_default ());
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}
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