View.hpp
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
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