Transform.hpp

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//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
//
// 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.
//
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// 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.
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// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
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#ifndef SFML_TRANSFORM_HPP
#define SFML_TRANSFORM_HPP
 
// Headers
#include <SFML/Graphics/Export.hpp>
#include <SFML/Graphics/Rect.hpp>
#include <SFML/System/Vector2.hpp>
 
 
namespace sf
{
class SFML_GRAPHICS_API Transform
{
public:
 
    Transform();
 
    Transform(float a00, float a01, float a02,
              float a10, float a11, float a12,
              float a20, float a21, float a22);
 
    const float* getMatrix() const;
 
    Transform getInverse() const;
 
    Vector2f transformPoint(float x, float y) const;
 
    Vector2f transformPoint(const Vector2f& point) const;
 
    FloatRect transformRect(const FloatRect& rectangle) const;
 
    Transform& combine(const Transform& transform);
 
    Transform& translate(float x, float y);
 
    Transform& translate(const Vector2f& offset);
 
    Transform& rotate(float angle);
 
    Transform& rotate(float angle, float centerX, float centerY);
 
    Transform& rotate(float angle, const Vector2f& center);
 
    Transform& scale(float scaleX, float scaleY);
 
    Transform& scale(float scaleX, float scaleY, float centerX, float centerY);
 
    Transform& scale(const Vector2f& factors);
 
    Transform& scale(const Vector2f& factors, const Vector2f& center);
 
    // Static member data
    static const Transform Identity; 
 
private:
 
    // Member data
    float m_matrix[16]; 
};
 
SFML_GRAPHICS_API Transform operator *(const Transform& left, const Transform& right);
 
SFML_GRAPHICS_API Transform& operator *=(Transform& left, const Transform& right);
 
SFML_GRAPHICS_API Vector2f operator *(const Transform& left, const Vector2f& right);
 
SFML_GRAPHICS_API bool operator ==(const Transform& left, const Transform& right);
 
SFML_GRAPHICS_API bool operator !=(const Transform& left, const Transform& right);
 
} // namespace sf
 
 
#endif // SFML_TRANSFORM_HPP