Drawable.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_DRAWABLE_HPP
#define SFML_DRAWABLE_HPP
 
// Headers
#include <SFML/System/Vector2.hpp>
#include <SFML/Graphics/Color.hpp>
#include <SFML/Graphics/Matrix3.hpp>
 
 
namespace sf
{
class RenderTarget;
 
namespace Blend
{
    enum Mode
    {
        Alpha,    
        Add,      
        Multiply, 
        None      
    };
}
 
class SFML_API Drawable
{
public :
 
    Drawable(const Vector2f& Position = Vector2f(0, 0), const Vector2f& Scale = Vector2f(1, 1), float Rotation = 0.f, const Color& Col = Color(255, 255, 255, 255));
 
    virtual ~Drawable();
 
    void SetPosition(float X, float Y);
 
    void SetPosition(const Vector2f& Position);
 
    void SetX(float X);
 
    void SetY(float Y);
 
    void SetScale(float ScaleX, float ScaleY);
 
    void SetScale(const Vector2f& Scale);
 
    void SetScaleX(float FactorX);
 
    void SetScaleY(float FactorY);
 
    void SetCenter(float CenterX, float CenterY);
 
    void SetCenter(const Vector2f& Center);
 
    void SetRotation(float Rotation);
 
    void SetColor(const Color& Col);
 
    void SetBlendMode(Blend::Mode Mode);
 
    const Vector2f& GetPosition() const;
 
    const Vector2f& GetScale() const;
 
    const Vector2f& GetCenter() const;
 
    float GetRotation() const;
 
    const Color& GetColor() const;
 
    Blend::Mode GetBlendMode() const;
 
    void Move(float OffsetX, float OffsetY);
 
    void Move(const Vector2f& Offset);
 
    void Scale(float FactorX, float FactorY);
 
    void Scale(const Vector2f& Factor);
 
    void Rotate(float Angle);
 
    sf::Vector2f TransformToLocal(const sf::Vector2f& Point) const;
 
    sf::Vector2f TransformToGlobal(const sf::Vector2f& Point) const;
 
protected :
 
    const Matrix3& GetMatrix() const;
 
    const Matrix3& GetInverseMatrix() const;
 
private :
 
    friend class RenderTarget;
 
    void Draw(RenderTarget& Target) const;
 
    virtual void Render(RenderTarget& Target) const = 0;
 
    // Member data
    Vector2f        myPosition;      
    Vector2f        myScale;         
    Vector2f        myCenter;        
    float           myRotation;      
    Color           myColor;         
    Blend::Mode     myBlendMode;     
    mutable bool    myNeedUpdate;    
    mutable bool    myInvNeedUpdate; 
    mutable Matrix3 myMatrix;        
    mutable Matrix3 myInvMatrix;     
};
 
} // namespace sf
 
 
#endif // SFML_DRAWABLE_HPP