52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file subStreamBuf.h
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* @author drose
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* @date 2002-08-02
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*/
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#ifndef SUBSTREAMBUF_H
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#define SUBSTREAMBUF_H
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#include "pandabase.h"
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#include "streamWrapper.h"
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/**
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* The streambuf object that implements ISubStream.
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*/
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class EXPCL_PANDA_EXPRESS SubStreamBuf : public std::streambuf {
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public:
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SubStreamBuf();
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SubStreamBuf(const SubStreamBuf ©) = delete;
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virtual ~SubStreamBuf();
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void open(IStreamWrapper *source, OStreamWrapper *dest, std::streampos start, std::streampos end, bool append);
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void close();
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virtual std::streampos seekoff(std::streamoff off, ios_seekdir dir, ios_openmode which);
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virtual std::streampos seekpos(std::streampos pos, ios_openmode which);
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protected:
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virtual int overflow(int c);
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virtual int sync();
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virtual int underflow();
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private:
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IStreamWrapper *_source;
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OStreamWrapper *_dest;
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std::streampos _start;
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std::streampos _end;
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bool _append;
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std::streampos _gpos;
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std::streampos _ppos;
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char *_buffer;
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};
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#endif
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