id3lib 3.8.3
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00001 // -*- C++ -*- 00002 // $Id: writer.h,v 1.8 2002/07/02 22:11:10 t1mpy Exp $ 00003 00004 // id3lib: a software library for creating and manipulating id3v1/v2 tags 00005 // Copyright 1999, 2000 Scott Thomas Haug 00006 00007 // This library is free software; you can redistribute it and/or modify it 00008 // under the terms of the GNU Library General Public License as published by 00009 // the Free Software Foundation; either version 2 of the License, or (at your 00010 // option) any later version. 00011 // 00012 // This library is distributed in the hope that it will be useful, but WITHOUT 00013 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00014 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 00015 // License for more details. 00016 // 00017 // You should have received a copy of the GNU Library General Public License 00018 // along with this library; if not, write to the Free Software Foundation, 00019 // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00020 00021 // The id3lib authors encourage improvements and optimisations to be sent to 00022 // the id3lib coordinator. Please see the README file for details on where to 00023 // send such submissions. See the AUTHORS file for a list of people who have 00024 // contributed to id3lib. See the ChangeLog file for a list of changes to 00025 // id3lib. These files are distributed with id3lib at 00026 // http://download.sourceforge.net/id3lib/ 00027 00028 #ifndef _ID3LIB_WRITER_H_ 00029 #define _ID3LIB_WRITER_H_ 00030 00031 #include "id3/globals.h" //has <stdlib.h> "id3/sized_types.h" 00032 00033 class ID3_CPP_EXPORT ID3_Writer 00034 { 00035 public: 00036 typedef uint32 size_type; 00037 typedef uint8 char_type; 00038 typedef uint32 pos_type; 00039 typedef int32 off_type; 00040 typedef int16 int_type; 00041 static const int_type END_OF_WRITER; 00042 00044 virtual void close() = 0; 00045 00047 virtual void flush() = 0; 00048 00050 virtual pos_type getBeg() { return static_cast<pos_type>(0); } 00051 00055 virtual pos_type getEnd() { return static_cast<pos_type>(-1); } 00056 00058 virtual pos_type getCur() = 0; 00059 00061 virtual size_type getSize() { return this->getCur() - this->getBeg(); } 00062 00064 virtual size_type getMaxSize() { return this->getEnd() - this->getBeg(); } 00065 00071 virtual int_type writeChar(char_type ch) 00072 { 00073 if (this->atEnd()) 00074 { 00075 return END_OF_WRITER; 00076 } 00077 this->writeChars(&ch, 1); 00078 return ch; 00079 } 00080 00086 virtual size_type writeChars(const char_type buf[], size_type len) = 0; 00087 virtual size_type writeChars(const char buf[], size_type len) 00088 { 00089 return this->writeChars(reinterpret_cast<const char_type *>(buf), len); 00090 } 00091 00092 virtual bool atEnd() 00093 { 00094 return this->getCur() >= this->getEnd(); 00095 } 00096 }; 00097 00098 #endif /* _ID3LIB_WRITER_H_ */ 00099