Transformable.hpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2017 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.
//
// 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_TRANSFORMABLE_HPP
#define SFML_TRANSFORMABLE_HPP

// Headers
#include <SFML/Graphics/Export.hpp>
#include <SFML/Graphics/Transform.hpp>


namespace sf
{
class SFML_GRAPHICS_API Transformable
{
public:

    Transformable();

    virtual ~Transformable();

    void setPosition(float x, float y);

    void setPosition(const Vector2f& position);

    void setRotation(float angle);

    void setScale(float factorX, float factorY);

    void setScale(const Vector2f& factors);

    void setOrigin(float x, float y);

    void setOrigin(const Vector2f& origin);

    const Vector2f& getPosition() const;

    float getRotation() const;

    const Vector2f& getScale() const;

    const Vector2f& getOrigin() const;

    void move(float offsetX, float offsetY);

    void move(const Vector2f& offset);

    void rotate(float angle);

    void scale(float factorX, float factorY);

    void scale(const Vector2f& factor);

    const Transform& getTransform() const;

    const Transform& getInverseTransform() const;

private:

    // Member data
    Vector2f          m_origin;                     
    Vector2f          m_position;                   
    float             m_rotation;                   
    Vector2f          m_scale;                      
    mutable Transform m_transform;                  
    mutable bool      m_transformNeedUpdate;        
    mutable Transform m_inverseTransform;           
    mutable bool      m_inverseTransformNeedUpdate; 
};

} // namespace sf


#endif // SFML_TRANSFORMABLE_HPP