1 /******************************************************************************** 2 * * 3 * G I F I m a g e O b j e c t * 4 * * 5 ********************************************************************************* 6 * Copyright (C) 1998,2005 by Jeroen van der Zijp. All Rights Reserved. * 7 ********************************************************************************* 8 * This library is free software; you can redistribute it and/or * 9 * modify it under the terms of the GNU Lesser General Public * 10 * License as published by the Free Software Foundation; either * 11 * version 2.1 of the License, or (at your option) any later version. * 12 * * 13 * This library is distributed in the hope that it will be useful, * 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 16 * Lesser General Public License for more details. * 17 * * 18 * You should have received a copy of the GNU Lesser General Public * 19 * License along with this library; if not, write to the Free Software * 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * 21 ********************************************************************************* 22 * $Id: FXGIFImage.h,v 1.20 2005/01/16 16:06:06 fox Exp $ * 23 ********************************************************************************/ 24 #ifndef FXGIFIMAGE_H 25 #define FXGIFIMAGE_H 26 27 #ifndef FXIMAGE_H 28 #include "FXImage.h" 29 #endif 30 31 namespace FX { 32 33 /// GIF Image class 34 class FXAPI FXGIFImage : public FXImage { FXDECLARE(FXGIFImage)35 FXDECLARE(FXGIFImage) 36 protected: 37 FXGIFImage(){} 38 private: 39 FXGIFImage(const FXGIFImage&); 40 FXGIFImage &operator=(const FXGIFImage&); 41 public: 42 static const FXchar fileExt[]; 43 public: 44 45 /// Construct an image from memory stream formatted as CompuServe GIF format 46 FXGIFImage(FXApp* a,const void *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1); 47 48 /// Save pixels into stream in [un]GIF format 49 virtual FXbool savePixels(FXStream& store) const; 50 51 /// Load pixels from stream in CompuServe GIF format 52 virtual FXbool loadPixels(FXStream& store); 53 54 /// Destroy 55 virtual ~FXGIFImage(); 56 }; 57 58 59 #ifndef FXLOADGIF 60 #define FXLOADGIF 61 62 /** 63 * Check if stream contains a GIF, return TRUE if so. 64 */ 65 extern FXAPI FXbool fxcheckGIF(FXStream& store); 66 67 68 /** 69 * Load an GIF (Graphics Interchange Format) file from a stream. 70 * Upon successful return, the pixel array and size are returned. 71 * If an error occurred, the pixel array is set to NULL. 72 */ 73 extern FXAPI FXbool fxloadGIF(FXStream& store,FXColor*& data,FXint& width,FXint& height); 74 75 76 /** 77 * Save an GIF (Graphics Interchange Format) file to a stream. 78 */ 79 extern FXAPI FXbool fxsaveGIF(FXStream& store,const FXColor *data,FXint width,FXint height,FXbool fast=TRUE); 80 81 #endif 82 83 } 84 85 #endif 86