genesis-3d_engine/Engine/addons/myguiengine/include/MyGUI_CoordConverter.h

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/*!
@file
@author Albert Semenov
@date 06/2009
*/
/*
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_COORD_CONVERTER_H__
#define __MYGUI_COORD_CONVERTER_H__
#include "MyGUI_Prerequest.h"
#include "MyGUI_Types.h"
namespace MyGUI
{
class MYGUI_EXPORT CoordConverter
{
public:
/** Convert pixel coordinates to texture UV coordinates */
static FloatRect convertTextureCoord(const IntCoord& _coord, const IntSize& _textureSize)
{
if (!_textureSize.width || !_textureSize.height) return FloatRect();
return FloatRect(
(float)_coord.left / (float)_textureSize.width,
(float)_coord.top / (float)_textureSize.height,
(float)_coord.right() / (float)_textureSize.width,
(float)_coord.bottom() / (float)_textureSize.height
);
}
/* Convert from relative to pixel coordinates.
@param _coord relative coordinates.
*/
static IntCoord convertFromRelative(const FloatCoord& _coord, const IntSize& _view)
{
return IntCoord(int(_coord.left * _view.width), int(_coord.top * _view.height), int(_coord.width * _view.width), int(_coord.height * _view.height));
}
/* Convert from relative to pixel coordinates.
@param _coord relative coordinates.
*/
static IntSize convertFromRelative(const FloatSize& _size, const IntSize& _view)
{
return IntSize(int(_size.width * _view.width), int(_size.height * _view.height));
}
/* Convert from relative to pixel coordinates.
@param _coord relative coordinates.
*/
static IntPoint convertFromRelative(const FloatPoint& _point, const IntSize& _view)
{
return IntPoint(int(_point.left * _view.width), int(_point.top * _view.height));
}
/* Convert from pixel to relative coordinates.
@param _coord pixel coordinates.
*/
static FloatCoord convertToRelative(const IntCoord& _coord, const IntSize& _view)
{
return FloatCoord(_coord.left / (float)_view.width, _coord.top / (float)_view.height, _coord.width / (float)_view.width, _coord.height / (float)_view.height);
}
static FloatSize convertToRelative(const IntSize& _size, const IntSize& _view)
{
return FloatSize(_size.width / (float)_view.width, _size.height / (float)_view.height);
}
static FloatPoint convertToRelative(const IntPoint& _point, const IntSize& _view)
{
return FloatPoint(_point.left / (float)_view.width, _point.top / (float)_view.height);
}
};
} // namespace MyGUI
#endif // __MYGUI_COORD_CONVERTER_H__