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9ff549799d
Rename the private header to follow our naming conventions, and drop the extra gdkkeys.c file.
868 lines
27 KiB
C
868 lines
27 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, see <http://www.gnu.org/licenses/>.
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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 "gdkkeysyms.h"
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#include "gdkkeysprivate.h"
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#include "gdkdisplay.h"
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#include "gdkdisplaymanagerprivate.h"
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#include "keynamesprivate.h"
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#include <glib/gprintf.h>
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#include <stdlib.h>
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#include <string.h>
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enum {
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PROP_0,
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PROP_DISPLAY,
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LAST_PROP
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};
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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 GParamSpec *props[LAST_PROP] = { NULL, };
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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_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GdkKeymap *keymap = GDK_KEYMAP (object);
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switch (prop_id)
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{
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case PROP_DISPLAY:
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g_value_set_object (value, keymap->display);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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gdk_keymap_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GdkKeymap *keymap = GDK_KEYMAP (object);
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switch (prop_id)
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{
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case PROP_DISPLAY:
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keymap->display = g_value_get_object (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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gdk_keymap_finalize (GObject *object)
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{
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GdkKeymap *keymap = GDK_KEYMAP (object);
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g_array_free (keymap->cached_keys, TRUE);
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g_hash_table_unref (keymap->cache);
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G_OBJECT_CLASS (gdk_keymap_parent_class)->finalize (object);
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}
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static void
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gdk_keymap_keys_changed (GdkKeymap *keymap)
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{
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GdkKeymapKey key;
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g_array_set_size (keymap->cached_keys, 0);
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key.keycode = 0;
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key.group = 0;
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key.level = 0;
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g_array_append_val (keymap->cached_keys, key);
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g_hash_table_remove_all (keymap->cache);
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}
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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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object_class->finalize = gdk_keymap_finalize;
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object_class->get_property = gdk_keymap_get_property;
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object_class->set_property = gdk_keymap_set_property;
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klass->keys_changed = gdk_keymap_keys_changed;
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props[PROP_DISPLAY] =
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g_param_spec_object ("display", NULL, NULL,
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GDK_TYPE_DISPLAY,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (object_class, LAST_PROP, props);
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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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* Emitted when the direction of the keymap changes.
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*
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* See gdk_keymap_get_direction().
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*/
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signals[DIRECTION_CHANGED] =
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g_signal_new (g_intern_static_string ("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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NULL,
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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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signals[KEYS_CHANGED] =
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g_signal_new (g_intern_static_string ("keys-changed"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GdkKeymapClass, keys_changed),
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NULL, NULL,
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NULL,
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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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signals[STATE_CHANGED] =
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g_signal_new (g_intern_static_string ("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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NULL,
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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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GdkKeymapKey key;
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keymap->cached_keys = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
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key.keycode = 0;
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key.group = 0;
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key.level = 0;
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g_array_append_val (keymap->cached_keys, key);
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keymap->cache = g_hash_table_new (g_direct_hash, g_direct_equal);
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}
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/* Other key-handling stuff
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*/
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/**
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* gdk_keyval_to_upper:
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* @keyval: a key value.
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*
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* Converts a key value to upper case, if applicable.
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*
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* Returns: the upper case form of @keyval, or @keyval itself if it is already
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* in upper case or it is not subject to case conversion.
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*/
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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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/**
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* gdk_keyval_to_lower:
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* @keyval: a key value.
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*
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* Converts a key value to lower case, if applicable.
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*
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* Returns: the lower case form of @keyval, or @keyval itself if it is already
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* in lower case or it is not subject to case conversion.
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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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/**
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* gdk_keyval_is_upper:
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* @keyval: a key value.
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*
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* Returns %TRUE if the given key value is in upper case.
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*
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* Returns: %TRUE if @keyval is in upper case, or if @keyval is not subject to
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* case conversion.
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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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/**
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* gdk_keyval_is_lower:
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* @keyval: a key value.
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*
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* Returns %TRUE if the given key value is in lower case.
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*
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* Returns: %TRUE if @keyval is in lower case, or if @keyval is not
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* subject to case conversion.
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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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/*< private >
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* gdk_keymap_get_direction:
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* @keymap: a `GdkKeymap`
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*
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* Returns the direction of effective layout of the keymap.
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*
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* The direction of a layout is the direction of the majority of its
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* symbols. See pango_unichar_direction().
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*
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* Returns: %PANGO_DIRECTION_LTR or %PANGO_DIRECTION_RTL
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* if it can determine the direction. %PANGO_DIRECTION_NEUTRAL
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* otherwise.
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*/
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PangoDirection
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gdk_keymap_get_direction (GdkKeymap *keymap)
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{
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g_return_val_if_fail (GDK_IS_KEYMAP (keymap), PANGO_DIRECTION_LTR);
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return GDK_KEYMAP_GET_CLASS (keymap)->get_direction (keymap);
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}
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/*< private >
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* gdk_keymap_have_bidi_layouts:
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* @keymap: a `GdkKeymap`
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*
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* Determines if keyboard layouts for both right-to-left and left-to-right
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* languages are in use.
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*
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* Returns: %TRUE if there are layouts in both directions, %FALSE otherwise
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*/
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gboolean
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gdk_keymap_have_bidi_layouts (GdkKeymap *keymap)
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{
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g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
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return GDK_KEYMAP_GET_CLASS (keymap)->have_bidi_layouts (keymap);
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}
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/*< private >
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* gdk_keymap_get_caps_lock_state:
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* @keymap: a `GdkKeymap`
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*
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* Returns whether the Caps Lock modifier is locked.
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*
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* Returns: %TRUE if Caps Lock is on
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*/
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gboolean
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gdk_keymap_get_caps_lock_state (GdkKeymap *keymap)
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{
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g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
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return GDK_KEYMAP_GET_CLASS (keymap)->get_caps_lock_state (keymap);
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}
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/*< private >
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* gdk_keymap_get_num_lock_state:
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* @keymap: a `GdkKeymap`
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*
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* Returns whether the Num Lock modifier is locked.
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*
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* Returns: %TRUE if Num Lock is on
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*/
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gboolean
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gdk_keymap_get_num_lock_state (GdkKeymap *keymap)
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{
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g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
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return GDK_KEYMAP_GET_CLASS (keymap)->get_num_lock_state (keymap);
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}
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/*< private >
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* gdk_keymap_get_scroll_lock_state:
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* @keymap: a `GdkKeymap`
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*
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* Returns whether the Scroll Lock modifier is locked.
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*
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* Returns: %TRUE if Scroll Lock is on
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*/
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gboolean
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gdk_keymap_get_scroll_lock_state (GdkKeymap *keymap)
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{
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g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
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return GDK_KEYMAP_GET_CLASS (keymap)->get_scroll_lock_state (keymap);
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}
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/*< private >
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* gdk_keymap_get_modifier_state:
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* @keymap: a `GdkKeymap`
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*
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* Returns the current modifier state.
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*
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* Returns: the current modifier state.
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*/
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guint
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gdk_keymap_get_modifier_state (GdkKeymap *keymap)
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{
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g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
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if (GDK_KEYMAP_GET_CLASS (keymap)->get_modifier_state)
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return GDK_KEYMAP_GET_CLASS (keymap)->get_modifier_state (keymap);
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return 0;
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}
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/*< private >
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* gdk_keymap_get_entries_for_keyval:
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* @keymap: a `GdkKeymap`
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* @keyval: a keyval, such as %GDK_KEY_a, %GDK_KEY_Up, %GDK_KEY_Return, etc.
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* @keys: (out) (array length=n_keys) (transfer full): return location
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* for an array of `GdkKeymapKey`
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* @n_keys: return location for number of elements in returned array
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*
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* Obtains a list of keycode/group/level combinations that will
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* generate @keyval. Groups and levels are two kinds of keyboard mode;
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* in general, the level determines whether the top or bottom symbol
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* on a key is used, and the group determines whether the left or
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* right symbol is used. On US keyboards, the shift key changes the
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* keyboard level, and there are no groups. A group switch key might
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* convert a keyboard between Hebrew to English modes, for example.
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* `GdkEventKey` contains a %group field that indicates the active
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* keyboard group. The level is computed from the modifier mask.
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* The returned array should be freed
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* with g_free().
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*
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* Returns: %TRUE if keys were found and returned
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**/
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gboolean
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gdk_keymap_get_entries_for_keyval (GdkKeymap *keymap,
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guint keyval,
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GdkKeymapKey **keys,
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int *n_keys)
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{
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GArray *array;
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g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
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g_return_val_if_fail (keys != NULL, FALSE);
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g_return_val_if_fail (n_keys != NULL, FALSE);
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g_return_val_if_fail (keyval != 0, FALSE);
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array = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
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GDK_KEYMAP_GET_CLASS (keymap)->get_entries_for_keyval (keymap, keyval, array);
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*n_keys = array->len;
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*keys = (GdkKeymapKey *)g_array_free (array, FALSE);
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return TRUE;
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}
|
||
|
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void
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gdk_keymap_get_cached_entries_for_keyval (GdkKeymap *keymap,
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guint keyval,
|
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GdkKeymapKey **keys,
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guint *n_keys)
|
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{
|
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guint cached;
|
||
guint offset;
|
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guint len;
|
||
|
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/* avoid using the first entry in cached_keys, so we can
|
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* use 0 to mean 'not cached'
|
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*/
|
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cached = GPOINTER_TO_UINT (g_hash_table_lookup (keymap->cache, GUINT_TO_POINTER (keyval)));
|
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if (cached == 0)
|
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{
|
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offset = keymap->cached_keys->len;
|
||
|
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GDK_KEYMAP_GET_CLASS (keymap)->get_entries_for_keyval (keymap, keyval, keymap->cached_keys);
|
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|
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len = keymap->cached_keys->len - offset;
|
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g_assert (len <= 255);
|
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|
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cached = (offset << 8) | len;
|
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|
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g_hash_table_insert (keymap->cache, GUINT_TO_POINTER (keyval), GUINT_TO_POINTER (cached));
|
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}
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else
|
||
{
|
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len = cached & 255;
|
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offset = cached >> 8;
|
||
}
|
||
|
||
*n_keys = len;
|
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*keys = (GdkKeymapKey *)&g_array_index (keymap->cached_keys, GdkKeymapKey, offset);
|
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}
|
||
|
||
/*< private >
|
||
* gdk_keymap_get_entries_for_keycode:
|
||
* @keymap: a `GdkKeymap`
|
||
* @hardware_keycode: a keycode
|
||
* @keys: (out) (array length=n_entries) (transfer full) (optional): return
|
||
* location for array of `GdkKeymapKey`
|
||
* @keyvals: (out) (array length=n_entries) (transfer full) (optional): return
|
||
* location for array of keyvals
|
||
* @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,
|
||
int *n_entries)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
|
||
g_return_val_if_fail (n_entries != NULL, FALSE);
|
||
|
||
return GDK_KEYMAP_GET_CLASS (keymap)->get_entries_for_keycode (keymap, hardware_keycode,
|
||
keys, keyvals, n_entries);
|
||
}
|
||
|
||
/*< private >
|
||
* gdk_keymap_lookup_key:
|
||
* @keymap: a `GdkKeymap`
|
||
* @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.
|
||
*
|
||
* Returns: a keyval, or 0 if none was mapped to the given @key
|
||
**/
|
||
guint
|
||
gdk_keymap_lookup_key (GdkKeymap *keymap,
|
||
const GdkKeymapKey *key)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_KEYMAP (keymap), 0);
|
||
g_return_val_if_fail (key != NULL, 0);
|
||
|
||
return GDK_KEYMAP_GET_CLASS (keymap)->lookup_key (keymap, key);
|
||
}
|
||
|
||
/*< private >
|
||
* gdk_keymap_translate_keyboard_state:
|
||
* @keymap: a `GdkKeymap`
|
||
* @hardware_keycode: a keycode
|
||
* @state: a modifier state
|
||
* @group: active keyboard group
|
||
* @keyval: (out) (optional): return location for keyval
|
||
* @effective_group: (out) (optional): return location for effective group
|
||
* @level: (out) (optional): return location for level
|
||
* @consumed_modifiers: (out) (optional): 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 [Groups][key-group-explanation] 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.
|
||
*
|
||
* @consumed_modifiers gives modifiers that should be masked outfrom @state
|
||
* when comparing this key press to a hot key. For instance, on a US keyboard,
|
||
* the `plus` symbol is shifted, so when comparing a key press to a
|
||
* `<Control>plus` accelerator `<Shift>` should be masked out.
|
||
*
|
||
* |[<!-- language="C" -->
|
||
* // We want to ignore irrelevant modifiers like ScrollLock
|
||
* #define ALL_ACCELS_MASK (GDK_CONTROL_MASK | GDK_SHIFT_MASK | GDK_ALT_MASK)
|
||
* state = gdk_event_get_modifier_state (event);
|
||
* gdk_keymap_translate_keyboard_state (keymap,
|
||
* gdk_key_event_get_keycode (event),
|
||
* state,
|
||
* gdk_key_event_get_group (event),
|
||
* &keyval, NULL, NULL, &consumed);
|
||
* if (keyval == GDK_PLUS &&
|
||
* (state & ~consumed & ALL_ACCELS_MASK) == GDK_CONTROL_MASK)
|
||
* // Control was pressed
|
||
* ]|
|
||
*
|
||
* An older interpretation @consumed_modifiers was that it contained
|
||
* all modifiers that might affect the translation of the key;
|
||
* this allowed accelerators to be stored with irrelevant consumed
|
||
* modifiers, by doing:
|
||
* |[<!-- language="C" -->
|
||
* // XXX Don’t do this XXX
|
||
* if (keyval == accel_keyval &&
|
||
* (state & ~consumed & ALL_ACCELS_MASK) == (accel_mods & ~consumed))
|
||
* // Accelerator was pressed
|
||
* ]|
|
||
*
|
||
* However, this did not work if multi-modifier combinations were
|
||
* used in the keymap, since, for instance, `<Control>` would be
|
||
* masked out even if only `<Control><Alt>` was used in the keymap.
|
||
* To support this usage as well as well as possible, all single
|
||
* modifier combinations that could affect the key for any combination
|
||
* of modifiers will be returned in @consumed_modifiers; multi-modifier
|
||
* combinations are returned only when actually found in @state. When
|
||
* you store accelerators, you should always store them with consumed
|
||
* modifiers removed. Store `<Control>plus`, not `<Control><Shift>plus`,
|
||
*
|
||
* Returns: %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,
|
||
int group,
|
||
guint *keyval,
|
||
int *effective_group,
|
||
int *level,
|
||
GdkModifierType *consumed_modifiers)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
|
||
|
||
return GDK_KEYMAP_GET_CLASS (keymap)->translate_keyboard_state (keymap,
|
||
hardware_keycode,
|
||
state,
|
||
group,
|
||
keyval,
|
||
effective_group,
|
||
level,
|
||
consumed_modifiers);
|
||
}
|
||
|
||
static int
|
||
gdk_keys_keyval_compare (const void *pkey, const void *pbase)
|
||
{
|
||
return (*(int *) pkey) - ((gdk_key *) pbase)->keyval;
|
||
}
|
||
|
||
static char *
|
||
_gdk_keyval_name (guint keyval)
|
||
{
|
||
static char buf[100];
|
||
gdk_key *found;
|
||
|
||
/* Check for directly encoded 24-bit UCS characters: */
|
||
if ((keyval & 0xff000000) == 0x01000000)
|
||
{
|
||
g_sprintf (buf, "U+%.04X", (keyval & 0x00ffffff));
|
||
return buf;
|
||
}
|
||
|
||
found = bsearch (&keyval,
|
||
gdk_keys_by_keyval, G_N_ELEMENTS (gdk_keys_by_keyval),
|
||
sizeof (gdk_key),
|
||
gdk_keys_keyval_compare);
|
||
|
||
if (found != NULL)
|
||
{
|
||
while ((found > gdk_keys_by_keyval) &&
|
||
((found - 1)->keyval == keyval))
|
||
found--;
|
||
|
||
return (char *) (keynames + found->offset);
|
||
}
|
||
else if (keyval != 0)
|
||
{
|
||
g_sprintf (buf, "%#x", keyval);
|
||
return buf;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static int
|
||
gdk_keys_name_compare (const void *pkey, const void *pbase)
|
||
{
|
||
return strcmp ((const char *) pkey,
|
||
(const char *) (keynames + ((const gdk_key *) pbase)->offset));
|
||
}
|
||
|
||
static guint
|
||
_gdk_keyval_from_name (const char *keyval_name)
|
||
{
|
||
gdk_key *found;
|
||
|
||
g_return_val_if_fail (keyval_name != NULL, 0);
|
||
|
||
if (strncmp (keyval_name,"XF86", 4) == 0)
|
||
keyval_name += 4;
|
||
|
||
found = bsearch (keyval_name,
|
||
gdk_keys_by_name, G_N_ELEMENTS (gdk_keys_by_name),
|
||
sizeof (gdk_key),
|
||
gdk_keys_name_compare);
|
||
if (found != NULL)
|
||
return found->keyval;
|
||
else
|
||
return GDK_KEY_VoidSymbol;
|
||
}
|
||
|
||
/**
|
||
* gdk_keyval_name:
|
||
* @keyval: a key value
|
||
*
|
||
* Converts a key value into a symbolic name.
|
||
*
|
||
* The names are the same as those in the
|
||
* `gdk/gdkkeysyms.h` header file
|
||
* but without the leading “GDK_KEY_”.
|
||
*
|
||
* Returns: (nullable) (transfer none): a string containing the name
|
||
* of the key
|
||
*/
|
||
const char *
|
||
gdk_keyval_name (guint keyval)
|
||
{
|
||
return _gdk_keyval_name (keyval);
|
||
}
|
||
|
||
/**
|
||
* gdk_keyval_from_name:
|
||
* @keyval_name: a key name
|
||
*
|
||
* Converts a key name to a key value.
|
||
*
|
||
* The names are the same as those in the
|
||
* `gdk/gdkkeysyms.h` header file
|
||
* but without the leading “GDK_KEY_”.
|
||
*
|
||
* Returns: the corresponding key value, or %GDK_KEY_VoidSymbol
|
||
* if the key name is not a valid key
|
||
*/
|
||
guint
|
||
gdk_keyval_from_name (const char *keyval_name)
|
||
{
|
||
return _gdk_keyval_from_name (keyval_name);
|
||
}
|
||
|
||
/**
|
||
* gdk_keyval_convert_case:
|
||
* @symbol: a keyval
|
||
* @lower: (out): return location for lowercase version of @symbol
|
||
* @upper: (out): return location for uppercase version of @symbol
|
||
*
|
||
* Obtains the upper- and lower-case versions of the keyval @symbol.
|
||
*
|
||
* Examples of keyvals are `GDK_KEY_a`, `GDK_KEY_Enter`, `GDK_KEY_F1`, etc.
|
||
*/
|
||
void
|
||
gdk_keyval_convert_case (guint symbol,
|
||
guint *lower,
|
||
guint *upper)
|
||
{
|
||
guint xlower, xupper;
|
||
|
||
xlower = symbol;
|
||
xupper = symbol;
|
||
|
||
/* Check for directly encoded 24-bit UCS characters: */
|
||
if ((symbol & 0xff000000) == 0x01000000)
|
||
{
|
||
if (lower)
|
||
*lower = gdk_unicode_to_keyval (g_unichar_tolower (symbol & 0x00ffffff));
|
||
if (upper)
|
||
*upper = gdk_unicode_to_keyval (g_unichar_toupper (symbol & 0x00ffffff));
|
||
return;
|
||
}
|
||
|
||
switch (symbol >> 8)
|
||
{
|
||
case 0: /* Latin 1 */
|
||
if ((symbol >= GDK_KEY_A) && (symbol <= GDK_KEY_Z))
|
||
xlower += (GDK_KEY_a - GDK_KEY_A);
|
||
else if ((symbol >= GDK_KEY_a) && (symbol <= GDK_KEY_z))
|
||
xupper -= (GDK_KEY_a - GDK_KEY_A);
|
||
else if ((symbol >= GDK_KEY_Agrave) && (symbol <= GDK_KEY_Odiaeresis))
|
||
xlower += (GDK_KEY_agrave - GDK_KEY_Agrave);
|
||
else if ((symbol >= GDK_KEY_agrave) && (symbol <= GDK_KEY_odiaeresis))
|
||
xupper -= (GDK_KEY_agrave - GDK_KEY_Agrave);
|
||
else if ((symbol >= GDK_KEY_Ooblique) && (symbol <= GDK_KEY_Thorn))
|
||
xlower += (GDK_KEY_oslash - GDK_KEY_Ooblique);
|
||
else if ((symbol >= GDK_KEY_oslash) && (symbol <= GDK_KEY_thorn))
|
||
xupper -= (GDK_KEY_oslash - GDK_KEY_Ooblique);
|
||
break;
|
||
|
||
case 1: /* Latin 2 */
|
||
/* Assume the KeySym is a legal value (ignore discontinuities) */
|
||
if (symbol == GDK_KEY_Aogonek)
|
||
xlower = GDK_KEY_aogonek;
|
||
else if (symbol >= GDK_KEY_Lstroke && symbol <= GDK_KEY_Sacute)
|
||
xlower += (GDK_KEY_lstroke - GDK_KEY_Lstroke);
|
||
else if (symbol >= GDK_KEY_Scaron && symbol <= GDK_KEY_Zacute)
|
||
xlower += (GDK_KEY_scaron - GDK_KEY_Scaron);
|
||
else if (symbol >= GDK_KEY_Zcaron && symbol <= GDK_KEY_Zabovedot)
|
||
xlower += (GDK_KEY_zcaron - GDK_KEY_Zcaron);
|
||
else if (symbol == GDK_KEY_aogonek)
|
||
xupper = GDK_KEY_Aogonek;
|
||
else if (symbol >= GDK_KEY_lstroke && symbol <= GDK_KEY_sacute)
|
||
xupper -= (GDK_KEY_lstroke - GDK_KEY_Lstroke);
|
||
else if (symbol >= GDK_KEY_scaron && symbol <= GDK_KEY_zacute)
|
||
xupper -= (GDK_KEY_scaron - GDK_KEY_Scaron);
|
||
else if (symbol >= GDK_KEY_zcaron && symbol <= GDK_KEY_zabovedot)
|
||
xupper -= (GDK_KEY_zcaron - GDK_KEY_Zcaron);
|
||
else if (symbol >= GDK_KEY_Racute && symbol <= GDK_KEY_Tcedilla)
|
||
xlower += (GDK_KEY_racute - GDK_KEY_Racute);
|
||
else if (symbol >= GDK_KEY_racute && symbol <= GDK_KEY_tcedilla)
|
||
xupper -= (GDK_KEY_racute - GDK_KEY_Racute);
|
||
break;
|
||
|
||
case 2: /* Latin 3 */
|
||
/* Assume the KeySym is a legal value (ignore discontinuities) */
|
||
if (symbol >= GDK_KEY_Hstroke && symbol <= GDK_KEY_Hcircumflex)
|
||
xlower += (GDK_KEY_hstroke - GDK_KEY_Hstroke);
|
||
else if (symbol >= GDK_KEY_Gbreve && symbol <= GDK_KEY_Jcircumflex)
|
||
xlower += (GDK_KEY_gbreve - GDK_KEY_Gbreve);
|
||
else if (symbol >= GDK_KEY_hstroke && symbol <= GDK_KEY_hcircumflex)
|
||
xupper -= (GDK_KEY_hstroke - GDK_KEY_Hstroke);
|
||
else if (symbol >= GDK_KEY_gbreve && symbol <= GDK_KEY_jcircumflex)
|
||
xupper -= (GDK_KEY_gbreve - GDK_KEY_Gbreve);
|
||
else if (symbol >= GDK_KEY_Cabovedot && symbol <= GDK_KEY_Scircumflex)
|
||
xlower += (GDK_KEY_cabovedot - GDK_KEY_Cabovedot);
|
||
else if (symbol >= GDK_KEY_cabovedot && symbol <= GDK_KEY_scircumflex)
|
||
xupper -= (GDK_KEY_cabovedot - GDK_KEY_Cabovedot);
|
||
break;
|
||
|
||
case 3: /* Latin 4 */
|
||
/* Assume the KeySym is a legal value (ignore discontinuities) */
|
||
if (symbol >= GDK_KEY_Rcedilla && symbol <= GDK_KEY_Tslash)
|
||
xlower += (GDK_KEY_rcedilla - GDK_KEY_Rcedilla);
|
||
else if (symbol >= GDK_KEY_rcedilla && symbol <= GDK_KEY_tslash)
|
||
xupper -= (GDK_KEY_rcedilla - GDK_KEY_Rcedilla);
|
||
else if (symbol == GDK_KEY_ENG)
|
||
xlower = GDK_KEY_eng;
|
||
else if (symbol == GDK_KEY_eng)
|
||
xupper = GDK_KEY_ENG;
|
||
else if (symbol >= GDK_KEY_Amacron && symbol <= GDK_KEY_Umacron)
|
||
xlower += (GDK_KEY_amacron - GDK_KEY_Amacron);
|
||
else if (symbol >= GDK_KEY_amacron && symbol <= GDK_KEY_umacron)
|
||
xupper -= (GDK_KEY_amacron - GDK_KEY_Amacron);
|
||
break;
|
||
|
||
case 6: /* Cyrillic */
|
||
/* Assume the KeySym is a legal value (ignore discontinuities) */
|
||
if (symbol >= GDK_KEY_Serbian_DJE && symbol <= GDK_KEY_Serbian_DZE)
|
||
xlower -= (GDK_KEY_Serbian_DJE - GDK_KEY_Serbian_dje);
|
||
else if (symbol >= GDK_KEY_Serbian_dje && symbol <= GDK_KEY_Serbian_dze)
|
||
xupper += (GDK_KEY_Serbian_DJE - GDK_KEY_Serbian_dje);
|
||
else if (symbol >= GDK_KEY_Cyrillic_YU && symbol <= GDK_KEY_Cyrillic_HARDSIGN)
|
||
xlower -= (GDK_KEY_Cyrillic_YU - GDK_KEY_Cyrillic_yu);
|
||
else if (symbol >= GDK_KEY_Cyrillic_yu && symbol <= GDK_KEY_Cyrillic_hardsign)
|
||
xupper += (GDK_KEY_Cyrillic_YU - GDK_KEY_Cyrillic_yu);
|
||
break;
|
||
|
||
case 7: /* Greek */
|
||
/* Assume the KeySym is a legal value (ignore discontinuities) */
|
||
if (symbol >= GDK_KEY_Greek_ALPHAaccent && symbol <= GDK_KEY_Greek_OMEGAaccent)
|
||
xlower += (GDK_KEY_Greek_alphaaccent - GDK_KEY_Greek_ALPHAaccent);
|
||
else if (symbol >= GDK_KEY_Greek_alphaaccent && symbol <= GDK_KEY_Greek_omegaaccent &&
|
||
symbol != GDK_KEY_Greek_iotaaccentdieresis &&
|
||
symbol != GDK_KEY_Greek_upsilonaccentdieresis)
|
||
xupper -= (GDK_KEY_Greek_alphaaccent - GDK_KEY_Greek_ALPHAaccent);
|
||
else if (symbol >= GDK_KEY_Greek_ALPHA && symbol <= GDK_KEY_Greek_OMEGA)
|
||
xlower += (GDK_KEY_Greek_alpha - GDK_KEY_Greek_ALPHA);
|
||
else if (symbol == GDK_KEY_Greek_finalsmallsigma)
|
||
xupper = GDK_KEY_Greek_SIGMA;
|
||
else if (symbol >= GDK_KEY_Greek_alpha && symbol <= GDK_KEY_Greek_omega)
|
||
xupper -= (GDK_KEY_Greek_alpha - GDK_KEY_Greek_ALPHA);
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
if (lower)
|
||
*lower = xlower;
|
||
if (upper)
|
||
*upper = xupper;
|
||
}
|