|
Main Page Class Hierarchy Alphabetical List Compound List File List Compound Members
|
00001 /******************************************************************************** 00002 * * 00003 * G I F I m a g e O b j e c t * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 1998,2010 by Jeroen van der Zijp. All Rights Reserved. * 00007 ********************************************************************************* 00008 * This library is free software; you can redistribute it and/or modify * 00009 * it under the terms of the GNU Lesser General Public License as published by * 00010 * the Free Software Foundation; either version 3 of the License, or * 00011 * (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 * 00016 * GNU Lesser General Public License for more details. * 00017 * * 00018 * You should have received a copy of the GNU Lesser General Public License * 00019 * along with this program. If not, see <http://www.gnu.org/licenses/> * 00020 ********************************************************************************/ 00021 #ifndef FXGIFIMAGE_H 00022 #define FXGIFIMAGE_H 00023 00024 #ifndef FXIMAGE_H 00025 #include "FXImage.h" 00026 #endif 00027 00028 namespace FX { 00029 00030 /// GIF Image class 00031 class FXAPI FXGIFImage : public FXImage { 00032 FXDECLARE(FXGIFImage) 00033 protected: 00034 FXGIFImage(){} 00035 private: 00036 FXGIFImage(const FXGIFImage&); 00037 FXGIFImage &operator=(const FXGIFImage&); 00038 public: 00039 static const FXchar fileExt[]; 00040 static const FXchar mimeType[]; 00041 public: 00042 00043 /// Construct an image from memory stream formatted as CompuServe GIF format 00044 FXGIFImage(FXApp* a,const void *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1); 00045 00046 /// Save pixels into stream in [un]GIF format 00047 virtual FXbool savePixels(FXStream& store) const; 00048 00049 /// Load pixels from stream in CompuServe GIF format 00050 virtual FXbool loadPixels(FXStream& store); 00051 00052 /// Destroy 00053 virtual ~FXGIFImage(); 00054 }; 00055 00056 00057 #ifndef FXLOADGIF 00058 #define FXLOADGIF 00059 00060 /** 00061 * Check if stream contains a GIF, return true if so. 00062 */ 00063 extern FXAPI FXbool fxcheckGIF(FXStream& store); 00064 00065 00066 /** 00067 * Load an GIF (Graphics Interchange Format) file from a stream; if the flag 00068 * flag is true, the background color is considered transparent. Upon successful return, 00069 * the pixel array and size are returned. If an error occurred, the pixel array is set to NULL. 00070 */ 00071 extern FXAPI FXbool fxloadGIF(FXStream& store,FXColor*& data,FXint& width,FXint& height,FXbool flag=true); 00072 00073 00074 /** 00075 * Save an GIF (Graphics Interchange Format) file to a stream. If flag 00076 * is true, the faster Floyd-Steinberg dither method instead of the slower Wu 00077 * quantization algorithm. 00078 */ 00079 extern FXAPI FXbool fxsaveGIF(FXStream& store,const FXColor *data,FXint width,FXint height,FXbool flag=true); 00080 00081 #endif 00082 00083 } 00084 00085 #endif
|
Copyright © 1997-2010 Jeroen van der Zijp
|