View.hpp

00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007-2008 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 {
00043 class SFML_API View
00044 {
00045 public :
00046 
00053     explicit View(const FloatRect& ViewRect = FloatRect(0, 0, 1000, 1000));
00054 
00062     View(const sf::Vector2f& Center, const sf::Vector2f& HalfSize);
00063 
00071     void SetCenter(float X, float Y);
00072 
00079     void SetCenter(const sf::Vector2f& Center);
00080 
00088     void SetHalfSize(float HalfWidth, float HalfHeight);
00089 
00096     void SetHalfSize(const sf::Vector2f& HalfSize);
00097 
00104     void SetFromRect(const FloatRect& ViewRect);
00105 
00112     const sf::Vector2f& GetCenter() const;
00113 
00120     const sf::Vector2f& GetHalfSize() const;
00121 
00128     const sf::FloatRect& GetRect() const;
00129 
00137     void Move(float OffsetX, float OffsetY);
00138 
00145     void Move(const sf::Vector2f& Offset);
00146 
00153     void Zoom(float Factor);
00154 
00155 private :
00156 
00157     friend class RenderWindow;
00158 
00165     const Matrix3& GetMatrix() const;
00166 
00171     void RecomputeMatrix();
00172 
00174     // Member data
00176     sf::Vector2f myCenter;     
00177     sf::Vector2f myHalfSize;   
00178     FloatRect    myRect;       
00179     Matrix3      myMatrix;     
00180     bool         myNeedUpdate; 
00181 };
00182 
00183 } // namespace sf
00184 
00185 
00186 #endif // SFML_VIEW_HPP