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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) 1999,2005 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 1.19 2005/01/16 16:06:06 fox Exp $ * 00023 ********************************************************************************/ 00024 #ifndef FXPNGIMAGE_H 00025 #define FXPNGIMAGE_H 00026 00027 #ifndef FXIMAGE_H 00028 #include "FXImage.h" 00029 #endif 00030 00031 namespace FX { 00032 00033 00034 /// Portable Network Graphics (PNG) Image class 00035 class FXAPI FXPNGImage : public FXImage { 00036 FXDECLARE(FXPNGImage) 00037 protected: 00038 FXPNGImage(){} 00039 private: 00040 FXPNGImage(const FXPNGImage&); 00041 FXPNGImage &operator=(const FXPNGImage&); 00042 public: 00043 static const FXchar fileExt[]; 00044 public: 00045 00046 /// Construct an image from memory stream formatted in PNG format 00047 FXPNGImage(FXApp *a,const void *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1); 00048 00049 /// Save pixels into stream in PNG format 00050 virtual FXbool loadPixels(FXStream& store); 00051 00052 /// Load pixels from stream in PNG format 00053 virtual FXbool savePixels(FXStream& store) const; 00054 00055 /// True if format is supported 00056 static const FXbool supported; 00057 00058 /// Destroy 00059 virtual ~FXPNGImage(); 00060 }; 00061 00062 00063 /** 00064 * Check if stream contains a PNG, return TRUE if so. 00065 */ 00066 extern FXAPI FXbool fxcheckPNG(FXStream& store); 00067 00068 00069 /** 00070 * Load an PNG (Portable Network Graphics) 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 FXbool fxloadPNG(FXStream& store,FXColor*& data,FXint& width,FXint& height); 00075 00076 00077 /** 00078 * Save an PNG (Portable Network Graphics) file to a stream. 00079 */ 00080 extern FXAPI FXbool fxsavePNG(FXStream& store,const FXColor* data,FXint width,FXint height); 00081 00082 } 00083 00084 #endif

Copyright © 1997-2005 Jeroen van der Zijp