MyGUI_RenderItem.h

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/*
    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 <http://www.gnu.org/licenses/>.
*/
#ifndef __MYGUI_RENDER_ITEM_H__
#define __MYGUI_RENDER_ITEM_H__

#include "MyGUI_Prerequest.h"
#include "MyGUI_ISubWidget.h"
#include "MyGUI_IVertexBuffer.h"
#include "MyGUI_VertexData.h"
#include "MyGUI_IRenderTarget.h"

namespace MyGUI
{

    typedef std::pair<ISubWidget*, size_t> DrawItemInfo;
    typedef std::vector<DrawItemInfo> VectorDrawItem;

    class MYGUI_EXPORT RenderItem
    {
    public:
        RenderItem();
        virtual ~RenderItem();

        void renderToTarget(IRenderTarget* _target, bool _update);

        void setTexture(ITexture* _value);
        ITexture* getTexture();

        void addDrawItem(ISubWidget* _item, size_t _count);
        void removeDrawItem(ISubWidget* _item);
        void reallockDrawItem(ISubWidget* _item, size_t _count);

        void outOfDate() { mOutDate = true; }

        size_t getNeedVertexCount() const { return mNeedVertexCount; }
        size_t getVertexCount() const { return mCountVertex; }

        bool getCurrentUpdate() const { return mCurrentUpdate; }
        Vertex* getCurrentVertextBuffer() const { return mCurrentVertext; }

        void setLastVertexCount(size_t _count) { mLastVertextCount = _count; }

        IRenderTarget* getRenderTarget() { return mRenderTarget; }

        bool getCompression();

    private:
#if MYGUI_DEBUG_MODE == 1
        std::string mTextureName;
#endif

        ITexture* mTexture;

        size_t mNeedVertexCount;

        bool mOutDate;
        VectorDrawItem mDrawItems;

        // êîëëè÷åñòâî îòðåíäðåííûõ ðåàëüíî âåðøèí
        size_t mCountVertex;

        bool mCurrentUpdate;
        Vertex* mCurrentVertext;
        size_t mLastVertextCount;

        IVertexBuffer* mVertexBuffer;
        IRenderTarget* mRenderTarget;

        bool mCompression;
    };

} // namespace MyGUI

#endif // __MYGUI_RENDER_ITEM_H__

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