51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
// Filename: subStreamBuf.h
|
|
// Created by: drose (02Aug02)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
//
|
|
// All use of this software is subject to the terms of the revised BSD
|
|
// license. You should have received a copy of this license along
|
|
// with this source code in a file named "LICENSE."
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef SUBSTREAMBUF_H
|
|
#define SUBSTREAMBUF_H
|
|
|
|
#include "pandabase.h"
|
|
#include "streamWrapper.h"
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Class : SubStreamBuf
|
|
// Description : The streambuf object that implements ISubStream.
|
|
////////////////////////////////////////////////////////////////////
|
|
class EXPCL_PANDAEXPRESS SubStreamBuf : public streambuf {
|
|
public:
|
|
SubStreamBuf();
|
|
virtual ~SubStreamBuf();
|
|
|
|
void open(IStreamWrapper *source, streampos start, streampos end);
|
|
void close();
|
|
|
|
virtual streampos seekoff(streamoff off, ios_seekdir dir, ios_openmode mode);
|
|
virtual streampos seekpos(streampos pos, ios_openmode mode);
|
|
|
|
protected:
|
|
virtual int overflow(int c);
|
|
virtual int sync();
|
|
virtual int underflow();
|
|
|
|
private:
|
|
IStreamWrapper *_source;
|
|
streampos _start;
|
|
streampos _end;
|
|
streampos _cur;
|
|
size_t _unused;
|
|
char *_buffer;
|
|
};
|
|
|
|
#endif
|