src/graphic/surface.h

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00001 /******************************************************************************
00002  *  Wormux is a convivial mass murder game.
00003  *  Copyright (C) 2001-2004 Lawrence Azzoug.
00004  *
00005  *  This program is free software; you can redistribute it and/or modify
00006  *  it under the terms of the GNU General Public License as published by
00007  *  the Free Software Foundation; either version 2 of the License, or
00008  *  (at your option) any later version.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
00018  ******************************************************************************
00019  * Handle a SDL_Surface.
00020  *****************************************************************************/
00021 
00022 #ifndef SURFACE_H
00023 #define SURFACE_H
00024 
00025 #include <SDL.h>
00026 #include <string>
00027 #include "color.h"
00028 #include "../include/base.h"
00029 #include "../tool/point.h"
00030 #include "../tool/rectangle.h"
00031 
00032 class Surface
00033 {
00034 private:
00035   SDL_Surface* surface;
00036   bool autoFree;
00037   int Blit(const Surface& src, SDL_Rect *srcRect, SDL_Rect *dstRect);
00038   SDL_Rect GetSDLRect(const Rectanglei &r) const;
00039   SDL_Rect GetSDLRect(const Point2i &r) const;
00040   
00041 public:
00042   explicit Surface();
00043   explicit Surface(SDL_Surface *sdl_surface);
00044   explicit Surface(const Point2i &size, Uint32 flags, bool useAlpha = true);
00045   explicit Surface(const std::string &filename);
00046   Surface(const Surface &src);
00047   ~Surface();
00048 
00049   Surface &operator=(const Surface &src);
00050   
00051   void Free();
00052   void AutoFree();
00053   void SetAutoFree(bool newAutoFree);
00054   
00055   void SetSurface(SDL_Surface *newSurface, bool freePrevious = true);
00056   void NewSurface(const Point2i &size, Uint32 flags, bool useAlpha = true);
00057   
00058   SDL_Surface *GetSurface();
00059   
00060   int SetAlpha(Uint32 flags, Uint8 alpha);
00061   
00062   int Lock();
00063   void Unlock();
00064 
00065   int Blit(const Surface& src); 
00066   int Blit(const Surface& src, const Point2i& dst);
00067   int Blit(const Surface& src, const Rectanglei& srcRect, const Point2i &dstPoint);
00068   
00069   int SetColorKey(Uint32 flag, Uint32 key);
00070   int SetColorKey(Uint32 flag, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
00071   
00072   void GetRGBA(Uint32 color, Uint8 &r, Uint8 &g, Uint8 &b, Uint8 &a) const;
00073   Uint32 MapRGBA(Uint8 r, Uint8 g, Uint8 b, Uint8 a) const;
00074   Color GetColor(Uint32 color) const;
00075   Uint32 MapColor(Color color) const;
00076 
00077   void SetClipRect(const Rectanglei &rect);
00078   void Flip();
00079 
00080   int BoxColor(const Rectanglei &rect, const Color &color);
00081   int RectangleColor(const Rectanglei &rect, const Color &color, const uint &border_size = 1);
00082   int VlineColor(const uint &x1, const uint &y1, const uint &y2, const Color &color);
00083   int LineColor(const uint &x1, const uint &x2, const uint &y1, const uint &y2, const Color &color);
00084   int AALineColor(const uint &x1, const uint &x2, const uint &y1, const uint &y2, const Color &color);
00085   int CircleColor(const uint &x, const uint &y, const uint &rad, const Color &color);
00086 
00087   int Fill(Uint32 color) const;
00088   int Fill(const Color &color) const;
00089   int FillRect(const Rectanglei &dstRect, Uint32 color) const;
00090   int FillRect(const Rectanglei &dstRect, const Color &color) const;
00091   
00092   int ImgLoad(std::string filename);
00093   Surface RotoZoom(double angle, double zoomx, double zoomy, int smooth);
00094   Surface DisplayFormatAlpha();
00095   Surface DisplayFormat();
00096   Uint32 GetPixel(int x, int y);
00097   void PutPixel(int x, int y, Uint32 pixel);
00098   
00099   inline bool IsNull() const{
00100     return surface == NULL;
00101   }
00102   
00106   inline Point2i GetSize() const{
00107     return Point2i( GetWidth(), GetHeight() );
00108   }
00109   
00111   inline int GetWidth() const{
00112     return surface->w;
00113   }
00114   
00116   inline int GetHeight() const{
00117     return surface->h;
00118   }
00119   
00120   inline Uint32 GetFlags() const{
00121     return surface->flags;
00122   }
00123   
00125   inline Uint16 GetPitch() const{
00126     return surface->pitch;
00127   }
00128   
00130   inline Uint8 GetBytesPerPixel() const{
00131     return surface->format->BytesPerPixel;
00132   }
00133   
00135   inline unsigned char *GetPixels() const{
00136     return (unsigned char *) surface->pixels;
00137   }
00138 
00139 };
00140 
00141 #endif

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