Main Page   Class Hierarchy   Alphabetical List   Compound List   File List   Compound Members

FXGIFImage.h

Go to the documentation of this file.
00001 /********************************************************************************
00002 *                                                                               *
00003 *                         G I F   I m a g e   O b j e c t                       *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 1998,2006 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: FXGIFImage.h,v 1.23 2006/01/22 17:58:02 fox Exp $                        *
00023 ********************************************************************************/
00024 #ifndef FXGIFIMAGE_H
00025 #define FXGIFIMAGE_H
00026 
00027 #ifndef FXIMAGE_H
00028 #include "FXImage.h"
00029 #endif
00030 
00031 namespace FX {
00032 
00033 /// GIF Image class
00034 class FXAPI FXGIFImage : public FXImage {
00035   FXDECLARE(FXGIFImage)
00036 protected:
00037   FXGIFImage(){}
00038 private:
00039   FXGIFImage(const FXGIFImage&);
00040   FXGIFImage &operator=(const FXGIFImage&);
00041 public:
00042   static const FXchar fileExt[];
00043   static const FXchar mimeType[];
00044 public:
00045 
00046   /// Construct an image from memory stream formatted as CompuServe GIF format
00047   FXGIFImage(FXApp* a,const void *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1);
00048 
00049   /// Save pixels into stream in [un]GIF format
00050   virtual bool savePixels(FXStream& store) const;
00051 
00052   /// Load pixels from stream in CompuServe GIF format
00053   virtual bool loadPixels(FXStream& store);
00054 
00055   /// Destroy
00056   virtual ~FXGIFImage();
00057   };
00058 
00059 
00060 #ifndef FXLOADGIF
00061 #define FXLOADGIF
00062 
00063 /**
00064 * Check if stream contains a GIF, return TRUE if so.
00065 */
00066 extern FXAPI bool fxcheckGIF(FXStream& store);
00067 
00068 
00069 /**
00070 * Load an GIF (Graphics Interchange Format) file from a stream.
00071 * Upon successful return, the pixel array and size are returned.
00072 * If an error occurred, the pixel array is set to NULL.
00073 */
00074 extern FXAPI bool fxloadGIF(FXStream& store,FXColor*& data,FXint& width,FXint& height);
00075 
00076 
00077 /**
00078 * Save an GIF (Graphics Interchange Format) file to a stream.
00079 */
00080 extern FXAPI bool fxsaveGIF(FXStream& store,const FXColor *data,FXint width,FXint height,bool fast=true);
00081 
00082 #endif
00083 
00084 }
00085 
00086 #endif

Copyright © 1997-2005 Jeroen van der Zijp