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libsfml  1.6+dfsg2
View.hpp
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00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
00005 //
00006 // This software is provided 'as-is', without any express or implied warranty.
00007 // In no event will the authors be held liable for any damages arising from the use of this software.
00008 //
00009 // Permission is granted to anyone to use this software for any purpose,
00010 // including commercial applications, and to alter it and redistribute it freely,
00011 // subject to the following restrictions:
00012 //
00013 // 1. The origin of this software must not be misrepresented;
00014 //    you must not claim that you wrote the original software.
00015 //    If you use this software in a product, an acknowledgment
00016 //    in the product documentation would be appreciated but is not required.
00017 //
00018 // 2. Altered source versions must be plainly marked as such,
00019 //    and must not be misrepresented as being the original software.
00020 //
00021 // 3. This notice may not be removed or altered from any source distribution.
00022 //
00024 
00025 #ifndef SFML_VIEW_HPP
00026 #define SFML_VIEW_HPP
00027 
00029 // Headers
00031 #include <SFML/Config.hpp>
00032 #include <SFML/Graphics/Rect.hpp>
00033 #include <SFML/Graphics/Matrix3.hpp>
00034 #include <SFML/System/Vector2.hpp>
00035 
00036 
00037 namespace sf
00038 {
00039 class RenderTarget;
00040 
00045 class SFML_API View
00046 {
00047 public :
00048 
00055     explicit View(const FloatRect& ViewRect = FloatRect(0, 0, 1000, 1000));
00056 
00064     View(const sf::Vector2f& Center, const sf::Vector2f& HalfSize);
00065 
00073     void SetCenter(float X, float Y);
00074 
00081     void SetCenter(const sf::Vector2f& Center);
00082 
00090     void SetHalfSize(float HalfWidth, float HalfHeight);
00091 
00098     void SetHalfSize(const sf::Vector2f& HalfSize);
00099 
00106     void SetFromRect(const FloatRect& ViewRect);
00107 
00114     const sf::Vector2f& GetCenter() const;
00115 
00122     const sf::Vector2f& GetHalfSize() const;
00123 
00130     const sf::FloatRect& GetRect() const;
00131 
00139     void Move(float OffsetX, float OffsetY);
00140 
00147     void Move(const sf::Vector2f& Offset);
00148 
00155     void Zoom(float Factor);
00156 
00157 private :
00158 
00159     friend class RenderTarget;
00160 
00167     const Matrix3& GetMatrix() const;
00168 
00173     void RecomputeMatrix();
00174 
00176     // Member data
00178     sf::Vector2f myCenter;     
00179     sf::Vector2f myHalfSize;   
00180     FloatRect    myRect;       
00181     Matrix3      myMatrix;     
00182     bool         myNeedUpdate; 
00183 };
00184 
00185 } // namespace sf
00186 
00187 
00188 #endif // SFML_VIEW_HPP