// Copyright (C) 2002-2011 Nikolaus Gebhardt

// This file is part of the "Irrlicht Engine".

// For conditions of distribution and use, see copyright notice in irrlicht.h


#ifndef __C_GUI_MODAL_SCREEN_H_INCLUDED__
#define __C_GUI_MODAL_SCREEN_H_INCLUDED__

#include "IrrCompileConfig.h"
#ifdef _IRR_COMPILE_WITH_GUI_

#include "IGUIElement.h"

namespace irr
{
namespace gui
{

	class CGUIModalScreen : public IGUIElement
	{
	public:

		//! constructor

		CGUIModalScreen(IGUIEnvironment* environment, IGUIElement* parent, s32 id);

		//! called if an event happened.

		virtual bool OnEvent(const SEvent& event);

		//! Removes a child.

		virtual void removeChild(IGUIElement* child);

		//! Adds a child

		virtual void addChild(IGUIElement* child);


		//! draws the element and its children

		virtual void draw();

		//! Updates the absolute position.

		virtual void updateAbsolutePosition();

        //! Modalscreen is not a typical element, but rather acts like a state for it's children.

        //! isVisible is overriden to give this a useful behaviour, so that a modal will no longer

        //! be active when its parent is invisible or all its children are invisible.

		virtual bool isVisible() const;

		//! Modals are infinite so every point is inside

		virtual bool isPointInside(const core::position2d<s32>& point) const;

		//! Writes attributes of the element.

		virtual void serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const;

		//! Reads attributes of the element

		virtual void deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options);

    protected:
        virtual bool canTakeFocus(IGUIElement* target) const;

	private:

		u32 MouseDownTime;
	};


} // end namespace gui

} // end namespace irr


#endif // _IRR_COMPILE_WITH_GUI_


#endif