92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
/*!
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@file
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@author Albert Semenov
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@date 06/2009
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*/
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/*
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This file is part of MyGUI.
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MyGUI is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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MyGUI is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MYGUI_COORD_CONVERTER_H__
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#define __MYGUI_COORD_CONVERTER_H__
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#include "MyGUI_Prerequest.h"
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#include "MyGUI_Types.h"
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namespace MyGUI
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{
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class MYGUI_EXPORT CoordConverter
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{
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public:
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/** Convert pixel coordinates to texture UV coordinates */
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static FloatRect convertTextureCoord(const IntCoord& _coord, const IntSize& _textureSize)
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{
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if (!_textureSize.width || !_textureSize.height) return FloatRect();
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return FloatRect(
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(float)_coord.left / (float)_textureSize.width,
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(float)_coord.top / (float)_textureSize.height,
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(float)_coord.right() / (float)_textureSize.width,
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(float)_coord.bottom() / (float)_textureSize.height
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);
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}
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/* Convert from relative to pixel coordinates.
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@param _coord relative coordinates.
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*/
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static IntCoord convertFromRelative(const FloatCoord& _coord, const IntSize& _view)
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{
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return IntCoord(int(_coord.left * _view.width), int(_coord.top * _view.height), int(_coord.width * _view.width), int(_coord.height * _view.height));
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}
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/* Convert from relative to pixel coordinates.
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@param _coord relative coordinates.
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*/
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static IntSize convertFromRelative(const FloatSize& _size, const IntSize& _view)
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{
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return IntSize(int(_size.width * _view.width), int(_size.height * _view.height));
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}
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/* Convert from relative to pixel coordinates.
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@param _coord relative coordinates.
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*/
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static IntPoint convertFromRelative(const FloatPoint& _point, const IntSize& _view)
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{
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return IntPoint(int(_point.left * _view.width), int(_point.top * _view.height));
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}
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/* Convert from pixel to relative coordinates.
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@param _coord pixel coordinates.
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*/
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static FloatCoord convertToRelative(const IntCoord& _coord, const IntSize& _view)
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{
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return FloatCoord(_coord.left / (float)_view.width, _coord.top / (float)_view.height, _coord.width / (float)_view.width, _coord.height / (float)_view.height);
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}
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static FloatSize convertToRelative(const IntSize& _size, const IntSize& _view)
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{
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return FloatSize(_size.width / (float)_view.width, _size.height / (float)_view.height);
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}
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static FloatPoint convertToRelative(const IntPoint& _point, const IntSize& _view)
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{
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return FloatPoint(_point.left / (float)_view.width, _point.top / (float)_view.height);
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}
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};
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} // namespace MyGUI
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#endif // __MYGUI_COORD_CONVERTER_H__
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