MyGUI  3.2.0
MyGUI_GeometryUtility.h
Go to the documentation of this file.
00001 
00006 /*
00007     This file is part of MyGUI.
00008 
00009     MyGUI is free software: you can redistribute it and/or modify
00010     it under the terms of the GNU Lesser General Public License as published by
00011     the Free Software Foundation, either version 3 of the License, or
00012     (at your option) any later version.
00013 
00014     MyGUI is distributed in the hope that it will be useful,
00015     but WITHOUT ANY WARRANTY; without even the implied warranty of
00016     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017     GNU Lesser General Public License for more details.
00018 
00019     You should have received a copy of the GNU Lesser General Public License
00020     along with MyGUI.  If not, see <http://www.gnu.org/licenses/>.
00021 */
00022 #ifndef __MYGUI_GEOMETRY_UTILITY_H__
00023 #define __MYGUI_GEOMETRY_UTILITY_H__
00024 
00025 #include "MyGUI_Prerequest.h"
00026 
00027 namespace MyGUI
00028 {
00029 
00030     typedef std::vector<FloatPoint> VectorFloatPoint;
00031 
00032     namespace geometry_utility
00033     {
00034         VectorFloatPoint cropPolygon(FloatPoint* _baseVerticiesPos, size_t _size, const IntCoord& _cropRectangle);
00035 
00036         enum Side {Left, Right, Top, Bottom};
00037         void cropPolygonSide(VectorFloatPoint& _verticies, int _sideCoord, Side _side);
00038 
00039         // get point position relative to rectangle
00040         FloatPoint getPositionInsideRect(const FloatPoint& _point, const FloatPoint& _corner0, const FloatPoint& _corner1, const FloatPoint& _corner2);
00041 
00042         FloatPoint getUVFromPositionInsideRect(const FloatPoint& _point, const FloatPoint& _v0, const FloatPoint& _v1, const FloatPoint& _baseUV);
00043 
00044     } // namespace geometry_utility
00045 
00046 } // namespace MyGUI
00047 
00048 #endif // __MYGUI_GEOMETRY_UTILITY_H__