136 lines
4.0 KiB
C
136 lines
4.0 KiB
C
/*
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* Copyright (C) 2010 Daiki Ueno <ueno@unixuser.org>
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* Copyright (C) 2010 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 License
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* as published by the Free Software Foundation; either version 2 of
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* 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, but
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* 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 Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/**
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* SECTION:eek-layout
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* @short_description: Base interface of a layout engine
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*
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* The #EekLayout class is a base interface of layout engine which
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* arranges keyboard elements.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif /* HAVE_CONFIG_H */
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#include "eek-layout.h"
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#include "eek-keyboard.h"
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enum {
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GROUP_CHANGED,
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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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static void
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eek_layout_base_init (gpointer gobject_class)
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{
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static gboolean is_initialized = FALSE;
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if (!is_initialized) {
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/**
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* EekLayout::group-changed:
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* @layout: an #EekLayout that received the signal
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* @group: group index
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*
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* The ::group-changed signal is emitted each time group
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* configuration of @layout changed.
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*/
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signals[GROUP_CHANGED] =
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g_signal_new ("group-changed",
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G_TYPE_FROM_INTERFACE(gobject_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET(EekLayoutIface, group_changed),
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NULL,
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NULL,
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g_cclosure_marshal_VOID__INT,
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G_TYPE_NONE, 1,
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G_TYPE_INT);
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/**
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* EekLayout::changed:
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* @layout: an #EekLayout that received the signal
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*
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* The ::changed signal is emitted each time @layout changed
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* and re-layout of #EekKeyboard is needed.
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*/
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signals[CHANGED] =
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g_signal_new ("changed",
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G_TYPE_FROM_INTERFACE(gobject_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET(EekLayoutIface, changed),
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NULL,
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NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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is_initialized = TRUE;
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}
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}
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GType
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eek_layout_get_type (void)
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{
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static GType iface_type = 0;
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if (iface_type == 0) {
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static const GTypeInfo info = {
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sizeof (EekLayoutIface),
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eek_layout_base_init,
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NULL,
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};
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iface_type = g_type_register_static (G_TYPE_INTERFACE,
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"EekLayout",
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&info, 0);
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}
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return iface_type;
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}
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/**
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* eek_layout_apply:
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* @layout: an #EekLayout
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* @keyboard: an #EekKeyboard
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*
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* Apply @layout to @keyboard. This function is rarely called by user
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* programs but called by the subclasses of #EekKeyboard.
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*/
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void
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eek_layout_apply (EekLayout *layout,
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EekKeyboard *keyboard)
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{
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g_return_if_fail (EEK_IS_LAYOUT(layout));
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EEK_LAYOUT_GET_IFACE(layout)->apply (layout, keyboard);
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}
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/**
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* eek_layout_get_group:
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* @layout: an #EekLayout
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*
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* Get the group index from the @layout. This function normally
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* called after #EekLayout::group-changed signal to change group index
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* of all the keys in #EekKeyboard at a time.
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*/
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gint
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eek_layout_get_group (EekLayout *layout)
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{
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g_return_val_if_fail (EEK_IS_LAYOUT(layout), -1);
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return EEK_LAYOUT_GET_IFACE(layout)->get_group (layout);
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}
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