MyGUI_GeometryUtility.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_GEOMETRY_UTILITY_H__
#define __MYGUI_GEOMETRY_UTILITY_H__

#include "MyGUI_Prerequest.h"

namespace MyGUI
{

    typedef std::vector<FloatPoint> VectorFloatPoint;

    namespace geometry_utility
    {
        VectorFloatPoint cropPolygon(FloatPoint* _baseVerticiesPos, size_t _size, const IntCoord& _cropRectangle);

        enum Side {Left, Right, Top, Bottom};
        void cropPolygonSide(VectorFloatPoint& _verticies, int _sideCoord, Side _side);

        // get point position relative to rectangle
        FloatPoint getPositionInsideRect(const FloatPoint& _point, const FloatPoint& _corner0, const FloatPoint& _corner1, const FloatPoint& _corner2);

        FloatPoint getUVFromPositionInsideRect(const FloatPoint& _point, const FloatPoint& _v0, const FloatPoint& _v1, const FloatPoint& _baseUV);

    } // namespace geometry_utility

} // namespace MyGUI

#endif // __MYGUI_GEOMETRY_UTILITY_H__