Matrix3.hpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
 
#ifndef SFML_MATRIX3_HPP
#define SFML_MATRIX3_HPP

// Headers
////////////////////////////////////////////////////////////
#include <SFML/Config.hpp>
#include <SFML/System/Vector2.hpp>
#include <math.h>
 
 
namespace sf
{
class SFML_API Matrix3
{
public :

    Matrix3();

    Matrix3(float a00, float a01, float a02,
            float a10, float a11, float a12,
            float a20, float a21, float a22);

    void SetFromTransformations(const Vector2f& Center, const Vector2f& Translation, float Rotation, const Vector2f& Scale);


    ////////////////////////////////////////////////////////////
    Vector2f Transform(const Vector2f& Point) const;


    Matrix3 GetInverse() const;

    const float* Get4x4Elements() const;

    float  operator ()(unsigned int Row, unsigned int Col) const;
    float& operator ()(unsigned int Row, unsigned int Col);


    Matrix3 operator *(const Matrix3& Mat) const;


    Matrix3& operator *=(const Matrix3& Mat);

    // Static member data
    static const Matrix3 Identity; 
 
private :

    // Member data
    float myData[16]; 
};
 
#include <SFML/Graphics/Matrix3.inl>
 
} // namespace sf
 
 
#endif // SFML_MATRIX3_HPP