IGUIElement.h

/*

* IGUIElement.h

*

* Created on: 2010-10-11

* Author: Mido

* GUI元素，GUI控件基类

* - 来自于大哥irrlicht

*/

 

#ifndef IGUIELEMENT_H_

#define IGUIELEMENT_H_

 

#include "IReferenceCounted.h"

#include "IEventReceiver.h"

#include "EGUIElementTypes.h"

 

namespace irrlight

{

namespace gui

{

 

//! Base class of all GUI elements.

class IGUIElement : virtual public IReferenceCounted, public IEventReceiver

{

public:

//! Constructor

IGUIElement()

{

#ifdef _DEBUG

setDebugName("IGUIElement");

#endif

 

UserReceiver = null;

Parent = null;

}

 

//! Destructor

virtual ~IGUIElement()

{

}

 

public:

//! Called if an event happened.

virtual b1 OnEvent(const SEvent& e)

{

return Parent ? Parent->OnEvent(e) : bf ;

}

 

//! This sets a new event receiver for gui events.

/** Usually you do not have to

use this method, it is used by the engine internally.

/param evr Pointer to the new receiver. */

virtual any SetEventReceiver(IEventReceiver* evr)

{

UserReceiver = evr;

}

 

protected:

//! Pointer to the parent

IGUIElement* Parent;

//! type of element

EGUI_ELEMENT_TYPE Type;

// event receiver

IEventReceiver* UserReceiver;

};

 

}

}

#endif /* IGUIELEMENT_H_ */

 

 

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