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Main Page Class Hierarchy Alphabetical List Compound List File List Compound Members
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00001 /******************************************************************************** 00002 * * 00003 * B Z S t r e a m C l a s s e s * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 1999, 2002 by Lyle Johnson. 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: FXBzStream.h,v 1.5 2002/04/09 23:06:47 fox Exp $ * 00023 ********************************************************************************/ 00024 #ifdef HAVE_BZ2LIB_H 00025 #ifndef FXBZSTREAM_H 00026 #define FXBZSTREAM_H 00027 00028 #ifndef FXSTREAM_H 00029 #include "FXStream.h" 00030 #endif 00031 00032 00033 namespace FX { 00034 00035 00036 /// BZIP2 compressed file stream 00037 class FXAPI FXBzFileStream : public FXStream { 00038 void *file; 00039 void *bzfile; 00040 protected: 00041 virtual void saveItems(const void *buf,unsigned long n); 00042 virtual void loadItems(void *buf,unsigned long n); 00043 public: 00044 00045 /// Create BZIP2 file stream 00046 FXBzFileStream(const FXObject* cont=NULL); 00047 00048 /// Open file stream 00049 FXbool open(const char* filename,FXStreamDirection save_or_load); 00050 00051 /// Close file stream 00052 FXbool close(); 00053 00054 /// Move to position 00055 virtual FXbool position(unsigned long p){ return FALSE; } 00056 00057 /// Clean up 00058 virtual ~FXBzFileStream(); 00059 }; 00060 00061 00062 /// BZIP2 compressed memory stream 00063 class FXAPI FXBzMemoryStream : public FXStream { 00064 private: 00065 void *strm; 00066 unsigned long bzpos; 00067 FXuchar *ptr; 00068 FXuint space; 00069 FXbool owns; 00070 protected: 00071 virtual void saveItems(const void *buf, unsigned long n); 00072 virtual void loadItems(void *buf, unsigned long n); 00073 void finish(); 00074 public: 00075 00076 /// Create memory stream 00077 FXBzMemoryStream(const FXObject* cont=NULL); 00078 00079 /// Open store 00080 FXbool open(FXuchar* data, FXStreamDirection); 00081 00082 /// Open stream with specified size 00083 FXbool open(FXuchar* data, FXuint sp, FXStreamDirection); 00084 00085 // Get available space 00086 unsigned long getSpace() const { return space; } 00087 00088 /// Set available space 00089 void setSpace(unsigned long sp); 00090 00091 /// Take buffer away from stream 00092 void takeBuffer(FXuchar*& buffer,unsigned long& sp); 00093 00094 /// Give buffer to stream 00095 void giveBuffer(FXuchar *buffer,unsigned long sp); 00096 00097 /// Move to position 00098 virtual FXbool position(unsigned long p) { return FALSE; } 00099 00100 /// Get final size of compressed stream 00101 unsigned long getCompressedSize() const { return bzpos; } 00102 00103 /// Close 00104 FXbool close(); 00105 00106 /// Destructor 00107 virtual ~FXBzMemoryStream(); 00108 }; 00109 00110 } 00111 00112 #endif 00113 #endif