MyGUI_LayerManager.h

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/*
 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
 * Distributed under the MIT License
 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
 */

#ifndef __MYGUI_LAYER_MANAGER_H__
#define __MYGUI_LAYER_MANAGER_H__

#include "MyGUI_Prerequest.h"
#include "MyGUI_Singleton.h"
#include "MyGUI_Enumerator.h"
#include "MyGUI_XmlDocument.h"
#include "MyGUI_IUnlinkWidget.h"
#include "MyGUI_ResourceManager.h"
#include "MyGUI_ILayer.h"
#include "MyGUI_BackwardCompatibility.h"

namespace MyGUI
{

    class MYGUI_EXPORT LayerManager :
        public Singleton<LayerManager>,
        public IUnlinkWidget,
        public MemberObsolete<LayerManager>
    {
    public:
        typedef std::vector<ILayer*> VectorLayer;
        typedef Enumerator<VectorLayer> EnumeratorLayer;

    public:
        LayerManager();

        void initialise();
        void shutdown();

        void attachToLayerNode(const std::string& _name, Widget* _item);
        void detachFromLayer(Widget* _item);

        void upLayerItem(Widget* _item);

        bool isExist(const std::string& _name) const;
        EnumeratorLayer getEnumerator() const;

        ILayer* getByName(const std::string& _name, bool _throw = true) const;

        size_t getLayerCount() const;

        ILayer* getLayer(size_t _index);

        Widget* getWidgetFromPoint(int _left, int _top);

        void renderToTarget(IRenderTarget* _target, bool _update);

        void resizeView(const IntSize& _viewSize);

        const std::string& getCategoryName() const;

    private:
        void _load(xml::ElementPtr _node, const std::string& _file, Version _version);
        void _unlinkWidget(Widget* _widget);

        void clear();

        void merge(VectorLayer& _layers);
        void destroy(ILayer* _layer);

    private:
        VectorLayer mLayerNodes;

        bool mIsInitialise;
        std::string mCategoryName;
    };

} // namespace MyGUI

#endif // __MYGUI_LAYER_MANAGER_H__