/*!
	@file
	@author		Alexander Ptakhin
	@date		01/2009
	@module
*/
/*
	This file is part of MyGUI.
	MyGUI 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 3 of the License, or
	(at your option) any later version.
	MyGUI 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 MyGUI.  If not, see .
*/
#ifndef __MYGUI_CANVAS_H__
#define __MYGUI_CANVAS_H__
#include "MyGUI_Prerequest.h"
#include "MyGUI_Widget.h"
#include "MyGUI_ITexture.h"
namespace MyGUI
{
	/**
	 * Widget wrapper over Texture - shows the texture.
	 * Implemented: resizing of texture (see TextureResizeMode); recovery after lossing device;
	 */
	class MYGUI_EXPORT Canvas :
		public Widget,
		public ITextureInvalidateListener
	{
		MYGUI_RTTI_DERIVED( Canvas )
	public:
		Canvas();
		struct Event
		{
			Event( bool _textureChanged, bool _widgetResized, bool _requested ) :
				textureChanged( _textureChanged ),
				widgetResized( _widgetResized ),
				requested( _requested )
			{
			}
			bool textureChanged;
			bool widgetResized;
			/// This update was caused by calling updateTexture();
			bool requested;
		};
		typedef delegates::CDelegate1