Image.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_IMAGE_HPP
00026 #define SFML_IMAGE_HPP
00027 
00029 // Headers
00031 #include <SFML/Graphics/Color.hpp>
00032 #include <SFML/Graphics/VideoResource.hpp>
00033 #include <SFML/Graphics/Rect.hpp>
00034 #include <string>
00035 #include <vector>
00036 
00037 
00038 namespace sf
00039 {
00044 class SFML_API Image : public VideoResource
00045 {
00046 public :
00047 
00052     Image();
00053 
00060     Image(const Image& Copy);
00061 
00070     Image(unsigned int Width, unsigned int Height, const Color& Col = Color(0, 0, 0, 255));
00071 
00080     Image(unsigned int Width, unsigned int Height, const Uint8* Data);
00081 
00086     ~Image();
00087 
00096     bool LoadFromFile(const std::string& Filename);
00097 
00107     bool LoadFromMemory(const char* Data, std::size_t SizeInBytes);
00108 
00119     bool LoadFromPixels(unsigned int Width, unsigned int Height, const Uint8* Data);
00120 
00129     bool SaveToFile(const std::string& Filename) const;
00130 
00141     bool Create(unsigned int Width, unsigned int Height, Color Col = Color(0, 0, 0, 255));
00142 
00150     void CreateMaskFromColor(Color ColorKey, Uint8 Alpha = 0);
00151 
00163     bool Resize(unsigned int Width, unsigned int Height, Color Col = Color(0, 0, 0, 255));
00164 
00173     void SetPixel(unsigned int X, unsigned int Y, const Color& Col);
00174 
00184     const Color& GetPixel(unsigned int X, unsigned int Y) const;
00185 
00194     const Uint8* GetPixelsPtr() const;
00195 
00200     void Bind() const;
00201 
00209     void SetSmooth(bool Smooth);
00210 
00217     unsigned int GetWidth() const;
00218 
00225     unsigned int GetHeight() const;
00226 
00233     bool IsSmooth() const;
00234 
00245     FloatRect GetTexCoords(const IntRect& Rect, bool Adjust = true) const;
00246 
00255     static unsigned int GetValidTextureSize(unsigned int Size);
00256 
00265     Image& operator =(const Image& Other);
00266 
00267 private :
00268 
00275     bool CreateTexture();
00276 
00281     void Update();
00282 
00287     void Reset();
00288 
00293     virtual void DestroyVideoResources();
00294 
00296     // Member data
00298     unsigned int       myWidth;         
00299     unsigned int       myHeight;        
00300     unsigned int       myTextureWidth;  
00301     unsigned int       myTextureHeight; 
00302     std::vector<Color> myPixels;        
00303     unsigned int       myTexture;       
00304     bool               myIsSmooth;      
00305     mutable bool       myUpdated;       
00306 };
00307 
00308 } // namespace sf
00309 
00310 
00311 #endif // SFML_IMAGE_HPP