/*
   Copyright (C) 2001-2006, William Joseph.
   All Rights Reserved.

   This file is part of GtkRadiant.

   GtkRadiant is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   GtkRadiant 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "button.h"

#include <gtk/gtk.h>

#include "stream/textstream.h"
#include "stream/stringstream.h"
#include "generic/callback.h"

#include "image.h"
#include "pointer.h"

void clicked_closure_callback( ui::Widget widget, gpointer data ){
	( *reinterpret_cast<Callback<void()>*>( data ) )( );
}

void button_connect_callback( ui::Button button, const Callback<void()>& callback ){
#if 1
	g_signal_connect_swapped( G_OBJECT( button ), "clicked", G_CALLBACK( callback.getThunk() ), callback.getEnvironment() );
#else
	g_signal_connect_closure( G_OBJECT( button ), "clicked", create_cclosure( G_CALLBACK( clicked_closure_callback ), callback ), FALSE );
#endif
}

void button_connect_callback( ui::ToolButton button, const Callback<void()>& callback ){
#if 1
	g_signal_connect_swapped( G_OBJECT( button ), "clicked", G_CALLBACK( callback.getThunk() ), callback.getEnvironment() );
#else
	g_signal_connect_closure( G_OBJECT( button ), "clicked", create_cclosure( G_CALLBACK( clicked_closure_callback ), callback ), FALSE );
#endif
}

guint toggle_button_connect_callback( ui::ToggleButton button, const Callback<void()>& callback ){
#if 1
	guint handler = g_signal_connect_swapped( G_OBJECT( button ), "toggled", G_CALLBACK( callback.getThunk() ), callback.getEnvironment() );
#else
	guint handler = g_signal_connect_closure( G_OBJECT( button ), "toggled", create_cclosure( G_CALLBACK( clicked_closure_callback ), callback ), TRUE );
#endif
	g_object_set_data( G_OBJECT( button ), "handler", gint_to_pointer( handler ) );
	return handler;
}

guint toggle_button_connect_callback( ui::ToggleToolButton button, const Callback<void()>& callback ){
#if 1
	guint handler = g_signal_connect_swapped( G_OBJECT( button ), "toggled", G_CALLBACK( callback.getThunk() ), callback.getEnvironment() );
#else
	guint handler = g_signal_connect_closure( G_OBJECT( button ), "toggled", create_cclosure( G_CALLBACK( clicked_closure_callback ), callback ), TRUE );
#endif
	g_object_set_data( G_OBJECT( button ), "handler", gint_to_pointer( handler ) );
	return handler;
}

void button_set_icon( ui::Button button, const char* icon ){
	ui::Image image = ui::Image(new_local_image( icon ));
	image.show();
	button.add(image);
}

void toggle_button_set_active_no_signal( ui::ToggleButton button, gboolean active ){
	//globalOutputStream() << "set active: " << active << "\n";
	guint handler_id = gpointer_to_int( g_object_get_data( G_OBJECT( button ), "handler" ) );
	//guint signal_id = g_signal_lookup("toggled", G_OBJECT_TYPE (button));
	//globalOutputStream() << "signal_id: " << signal_id << "\n";
	//guint found = g_signal_handler_find(G_OBJECT(button), G_SIGNAL_MATCH_ID, signal_id, 0, 0, 0, 0);
	//globalOutputStream() << " handler found: " << found << "\n";
	g_signal_handler_block( G_OBJECT( button ), handler_id );
	gtk_toggle_button_set_active( button, active );
	g_signal_handler_unblock( G_OBJECT( button ), handler_id );
}

void toggle_button_set_active_no_signal( ui::ToggleToolButton button, gboolean active ){
	guint handler_id = gpointer_to_int( g_object_get_data( G_OBJECT( button ), "handler" ) );
	g_signal_handler_block( G_OBJECT( button ), handler_id );
	gtk_toggle_tool_button_set_active( button, active );
	g_signal_handler_unblock( G_OBJECT( button ), handler_id );
}


void radio_button_print_state( ui::RadioButton button ){
	globalOutputStream() << "toggle button: ";
	for ( GSList* radio = gtk_radio_button_get_group( button ); radio != 0; radio = g_slist_next( radio ) )
	{
		globalOutputStream() << gtk_toggle_button_get_active( GTK_TOGGLE_BUTTON( radio->data ) );
	}
	globalOutputStream() << "\n";
}

ui::ToggleButton radio_button_get_nth( ui::RadioButton radio, int index ){
	GSList *group = gtk_radio_button_get_group( radio );
	return ui::ToggleButton::from( g_slist_nth_data( group, g_slist_length( group ) - index - 1 ) );
}

void radio_button_set_active( ui::RadioButton radio, int index ){
	//radio_button_print_state(radio);
	gtk_toggle_button_set_active( radio_button_get_nth( radio, index ), TRUE );
	//radio_button_print_state(radio);
}

void radio_button_set_active_no_signal( ui::RadioButton radio, int index ){
	{
		for ( GSList* l = gtk_radio_button_get_group( radio ); l != 0; l = g_slist_next( l ) )
		{
			g_signal_handler_block( G_OBJECT( l->data ), gpointer_to_int( g_object_get_data( G_OBJECT( l->data ), "handler" ) ) );
		}
	}
	radio_button_set_active( radio, index );
	{
		for ( GSList* l = gtk_radio_button_get_group( radio ); l != 0; l = g_slist_next( l ) )
		{
			g_signal_handler_unblock( G_OBJECT( l->data ), gpointer_to_int( g_object_get_data( G_OBJECT( l->data ), "handler" ) ) );
		}
	}
}

int radio_button_get_active( ui::RadioButton radio ){
	//radio_button_print_state(radio);
	GSList *group = gtk_radio_button_get_group( radio );
	int index = g_slist_length( group ) - 1;
	for (; group != 0; group = g_slist_next( group ) )
	{
		if ( gtk_toggle_button_get_active( GTK_TOGGLE_BUTTON( group->data ) ) ) {
			break;
		}
		else
		{
			index--;
		}
	}
	return index;
}
