OgreOverlayContainer.h

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/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2014 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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*/

#ifndef __OverlayContainer_H__
#define __OverlayContainer_H__

#include "OgreOverlayPrerequisites.h"
#include "OgreOverlayElement.h"
#include "OgreIteratorWrappers.h"


namespace Ogre {


    class _OgreOverlayExport OverlayContainer : public OverlayElement
    {
    public:
        typedef map<String, OverlayElement*>::type ChildMap;
        typedef MapIterator<ChildMap> ChildIterator;
        typedef map<String, OverlayContainer*>::type ChildContainerMap;
        typedef MapIterator<ChildContainerMap> ChildContainerIterator;
    protected:
        ChildMap mChildren;
        ChildContainerMap mChildContainers;

        bool mChildrenProcessEvents;
 
    public:
        OverlayContainer(const String& name);
        virtual ~OverlayContainer();

        virtual void addChild(OverlayElement* elem);
        virtual void addChildImpl(OverlayElement* elem);
        virtual void addChildImpl(OverlayContainer* cont);
        virtual void removeChild(const String& name);
        virtual OverlayElement* getChild(const String& name);

        void initialise(void);

        void _addChild(OverlayElement* elem);
        void _removeChild(OverlayElement* elem) { _removeChild(elem->getName()); }
        void _removeChild(const String& name);

        virtual ChildIterator getChildIterator(void);

        virtual ChildContainerIterator getChildContainerIterator(void);

        virtual void _positionsOutOfDate(void);

        virtual void _update(void);

        virtual ushort _notifyZOrder(ushort newZOrder);

        virtual void _notifyViewport();

        virtual void _notifyWorldTransforms(const Matrix4& xform);

        virtual void _notifyParent(OverlayContainer* parent, Overlay* overlay);

        virtual void _updateRenderQueue(RenderQueue* queue);

        inline bool isContainer() const
        { return true; }

        virtual inline bool isChildrenProcessEvents() const
        { return true; }

        virtual inline void setChildrenProcessEvents(bool val)
        { mChildrenProcessEvents = val; }

        virtual OverlayElement* findElementAt(Real x, Real y);      // relative to parent

        void copyFromTemplate(OverlayElement* templateOverlay);
        virtual OverlayElement* clone(const String& instanceName);

    };


}


#endif