RenderTarget.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_RENDERTARGET_HPP
#define SFML_RENDERTARGET_HPP

// Headers
#include <SFML/System/NonCopyable.hpp>
#include <SFML/Graphics/Color.hpp>
#include <SFML/Graphics/Rect.hpp>
#include <SFML/Graphics/Renderer.hpp>
#include <SFML/Graphics/View.hpp>


namespace sf
{
class Drawable;
class Shader;

class SFML_API RenderTarget : NonCopyable
{
public :

    virtual ~RenderTarget();

    void Clear(const Color& color = Color(0, 0, 0));

    void Draw(const Drawable& object);

    void Draw(const Drawable& object, const Shader& shader);

    virtual unsigned int GetWidth() const = 0;

    virtual unsigned int GetHeight() const = 0;

    void SetView(const View& view);

    const View& GetView() const;

    const View& GetDefaultView() const;

    IntRect GetViewport(const View& view) const;

    Vector2f ConvertCoords(unsigned int x, unsigned int y) const;

    Vector2f ConvertCoords(unsigned int x, unsigned int y, const View& view) const;

    void SaveGLStates();

    void RestoreGLStates();

protected :

    RenderTarget();

    void Initialize();

private :

    virtual bool Activate(bool active) = 0;

    // Member data
    Renderer myRenderer;       
    View     myDefaultView;    
    View     myCurrentView;    
    bool     myStatesSaved;    
    bool     myViewHasChanged; 
};

} // namespace sf


#endif // SFML_RENDERTARGET_HPP

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