View.hpp

//
// 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.
//
// 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_VIEW_HPP
#define SFML_VIEW_HPP

// Headers
#include <SFML/Graphics/Export.hpp>
#include <SFML/Graphics/Rect.hpp>
#include <SFML/Graphics/Transform.hpp>
#include <SFML/System/Vector2.hpp>


namespace sf
{
class SFML_GRAPHICS_API View
{
public:

    View();

    explicit View(const FloatRect& rectangle);

    View(const Vector2f& center, const Vector2f& size);

    void setCenter(float x, float y);

    void setCenter(const Vector2f& center);

    void setSize(float width, float height);

    void setSize(const Vector2f& size);

    void setRotation(float angle);

    void setViewport(const FloatRect& viewport);

    void reset(const FloatRect& rectangle);

    const Vector2f& getCenter() const;

    const Vector2f& getSize() const;

    float getRotation() const;

    const FloatRect& getViewport() const;

    void move(float offsetX, float offsetY);

    void move(const Vector2f& offset);

    void rotate(float angle);

    void zoom(float factor);

    const Transform& getTransform() const;

    const Transform& getInverseTransform() const;

private:

    // Member data
    Vector2f          m_center;              
    Vector2f          m_size;                
    float             m_rotation;            
    FloatRect         m_viewport;            
    mutable Transform m_transform;           
    mutable Transform m_inverseTransform;    
    mutable bool      m_transformUpdated;    
    mutable bool      m_invTransformUpdated; 
};

} // namespace sf


#endif // SFML_VIEW_HPP