FileInputStream.h

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/*****************************************************************************
 * Copyright (C) 2011 by Benjamin Hadorn (b_hadorn@bluewin.ch)
 *****************************************************************************
 * Project    : Zeus Base Library
 * Module     : FileInputStream
 * Package    : Zeus.ZeusBase.System
 * Author     : Benjamin Hadorn
 * Date       : 27.12.2011
 * System     : Zeus-Framework
 *****************************************************************************
 * Licence:                                                                  *
 *   This library is free software; you can redistribute it and/or modify    *
 *   it under the terms of the GNU Lesser General Public License as          *
 *   published by the Free Software Foundation; either version               *
 *   2.1 of the License, or (at your option) any later version.              *
 *                                                                           *
 *   This library 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 Lesser General Public License for more details.                     *
 *                                                                           *
 *   You should have received a copy of the GNU Lesser General Public        *
 *   License along with this library; if not, write to the Free Software     *
 *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA    *
 *****************************************************************************/

/*****************************************************************************
 * Changes:
 *  27.12.2011 bha: created zeus 2.0
 *****************************************************************************/

#ifndef FileInputStreamH
#define FileInputStreamH

#include <zeusbase/System/AbstractInputStream.h>
#include <zeusbase/System/String.h>
#include <stdio.h>


BEGIN_NAMESPACE_Zeus

class TFile;

/***************************************************************************/
/***************************************************************************/
zeusbase_class TFileInputStream : public TAbstractInputStream
{
  public:
    TFileInputStream(const IString& strFilename);
    TFileInputStream(TFile& rFile);

    //Methods of IInputStream
    virtual bool MQUALIFIER isEndReached() const;
    virtual Retval MQUALIFIER read(char* pBuffer, Int iBufferSize, Int& rValidSize) const;
    virtual Int  MQUALIFIER readItem() const;
    virtual void MQUALIFIER close();
    virtual void MQUALIFIER reset();
    virtual bool MQUALIFIER skip(Int iBytes = 1);

    // Read the current byte position.
    Int getPos() const;

    // Set the current byte position.
    bool setPos(Int iPos);

  protected:
    virtual ~TFileInputStream();

  private:
    TFile& m_rFile;
    FILE* m_pFilePtr;

    void open_internal();
};


END_NAMESPACE_Zeus

#endif