juce_BufferedInputStream.h

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/*
  ==============================================================================

   This file is part of the JUCE library - "Jules' Utility Class Extensions"
   Copyright 2004-7 by Raw Material Software ltd.

  ------------------------------------------------------------------------------

   JUCE can be redistributed and/or modified under the terms of the
   GNU General Public License, as published by the Free Software Foundation;
   either version 2 of the License, or (at your option) any later version.

   JUCE is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with JUCE; if not, visit www.gnu.org/licenses or write to the
   Free Software Foundation, Inc., 59 Temple Place, Suite 330,
   Boston, MA 02111-1307 USA

  ------------------------------------------------------------------------------

   If you'd like to release a closed-source product which uses JUCE, commercial
   licenses are also available: visit www.rawmaterialsoftware.com/juce for
   more information.

  ==============================================================================
*/

#ifndef __JUCE_BUFFEREDINPUTSTREAM_JUCEHEADER__
#define __JUCE_BUFFEREDINPUTSTREAM_JUCEHEADER__

#include "../juce_InputStream.h"


//==============================================================================
class JUCE_API  BufferedInputStream  : public InputStream
{
public:
    //==============================================================================
    BufferedInputStream (InputStream* const sourceStream,
                         const int bufferSize,
                         const bool deleteSourceWhenDestroyed) throw();

    ~BufferedInputStream() throw();


    //==============================================================================
    int64 getTotalLength();
    int64 getPosition();
    bool setPosition (int64 newPosition);
    int read (void* destBuffer, int maxBytesToRead);
    const String readString();
    bool isExhausted();


    //==============================================================================
    juce_UseDebuggingNewOperator

private:
    InputStream* const source;
    const bool deleteSourceWhenDestroyed;
    int bufferSize;
    int64 position, lastReadPos, bufferStart, bufferOverlap;
    char* buffer;
    void ensureBuffered();

    BufferedInputStream (const BufferedInputStream&);
    const BufferedInputStream& operator= (const BufferedInputStream&);
};

#endif   // __JUCE_BUFFEREDINPUTSTREAM_JUCEHEADER__