File: MyGUI_RotatingSkin.h

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mygui 3.4.3%2Bdfsg-3
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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_ROTATING_SKIN_H_
#define MYGUI_ROTATING_SKIN_H_

#include "MyGUI_Prerequest.h"
#include "MyGUI_Types.h"
#include "MyGUI_ISubWidgetRect.h"
#include "MyGUI_RenderFormat.h"

namespace MyGUI
{

	class MYGUI_EXPORT RotatingSkin : public ISubWidgetRect
	{
		MYGUI_RTTI_DERIVED(RotatingSkin)

	public:
		RotatingSkin();

		/** Set angle of rotation in radians */
		void setAngle(float _angle);
		/** Get angle of rotation in radians */
		float getAngle() const;

		/** Set center of rotation
			@param _center Center point.
		*/
		void setCenter(const IntPoint& _center);
		/** Get center of rotation */
		IntPoint getCenter(bool _local = true) const;

		void setAlpha(float _alpha) override;

		void setVisible(bool _visible) override;

		void setStateData(IStateInfo* _data) override;

		void createDrawItem(ITexture* _texture, ILayerNode* _node) override;
		void destroyDrawItem() override;

		// метод для отрисовки себя
		void doRender() override;

		/*internal:*/
		void _updateView() override;
		void _correctView() override;

		void _setAlign(const IntSize& _oldsize) override;

		void _setUVSet(const FloatRect& _rect) override;
		void _setColour(const Colour& _value) override;

	protected:
		void _rebuildGeometry();

	private:
		bool mGeometryOutdated{false};

		float mAngle{0.0f};
		IntPoint mCenterPos;

		enum
		{
			RECT_VERTICIES_COUNT = 4,
			GEOMETRY_VERTICIES_TOTAL_COUNT = 8
		};
		FloatPoint mResultVerticiesPos[GEOMETRY_VERTICIES_TOTAL_COUNT];
		FloatPoint mResultVerticiesUV[GEOMETRY_VERTICIES_TOTAL_COUNT];

		bool mEmptyView{false};

		VertexColourType mVertexFormat;
		uint32 mCurrentColour{0xFFFFFFFF};

		FloatRect mCurrentTexture;
		IntCoord mCurrentCoord;

		ILayerNode* mNode{nullptr};
		RenderItem* mRenderItem{nullptr};
	};

} // namespace MyGUI

#endif // MYGUI_ROTATING_SKIN_H_