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FXPNGImage.h

00001 /********************************************************************************
00002 *                                                                               *
00003 *                          P N G   I m a g e   O b j e c t                      *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 1999,2002 by Jeroen van der Zijp.   All Rights Reserved.        *
00007 *********************************************************************************
00008 * This library is free software; you can redistribute it and/or                 *
00009 * modify it under the terms of the GNU Lesser General Public                    *
00010 * License as published by the Free Software Foundation; either                  *
00011 * version 2.1 of the License, or (at your option) any later version.            *
00012 *                                                                               *
00013 * This library is distributed in the hope that it will be useful,               *
00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of                *
00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU             *
00016 * Lesser General Public License for more details.                               *
00017 *                                                                               *
00018 * You should have received a copy of the GNU Lesser General Public              *
00019 * License along with this library; if not, write to the Free Software           *
00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *
00021 *********************************************************************************
00022 * $Id: FXPNGImage.h,v 1.8 2002/01/18 22:42:54 jeroen Exp $                      *
00023 ********************************************************************************/
00024 #ifndef FXPNGIMAGE_H
00025 #define FXPNGIMAGE_H
00026 
00027 #ifndef FXIMAGE_H
00028 #include "FXImage.h"
00029 #endif
00030 
00031 
00032 /// Portable Network Graphics (PNG) Image class
00033 class FXAPI FXPNGImage : public FXImage {
00034   FXDECLARE(FXPNGImage)
00035 protected:
00036   FXPNGImage(){}
00037 private:
00038   FXPNGImage(const FXPNGImage&);
00039   FXPNGImage &operator=(const FXPNGImage&);
00040 public:
00041 
00042   /// Construct an image from memory stream formatted in PNG format
00043   FXPNGImage(FXApp *a,const void *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1);
00044 
00045   /// Save pixels into stream in PNG format
00046   virtual void loadPixels(FXStream& store);
00047 
00048   /// Load pixels from stream in PNG format
00049   virtual void savePixels(FXStream& store) const;
00050 
00051   /// Destroy
00052   virtual ~FXPNGImage();
00053   };
00054 
00055 
00056 /// Load a png from a stream
00057 extern FXAPI FXbool fxloadPNG(FXStream& store,FXuchar*& data,FXColor& transp,FXint& width,FXint& height);
00058 
00059 
00060 /// Save a png to a stream
00061 extern FXAPI FXbool fxsavePNG(FXStream& store,const FXuchar* data,FXColor transp,FXint width,FXint height);
00062 
00063 
00064 #endif