tfile.h

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/***************************************************************************
    copyright            : (C) 2002 - 2008 by Scott Wheeler
    email                : wheeler@kde.org
 ***************************************************************************/
 
/***************************************************************************
 *   This library is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Lesser General Public License version   *
 *   2.1 as published by the Free Software Foundation.                     *
 *                                                                         *
 *   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 Street, Fifth Floor, Boston, MA         *
 *   02110-1301  USA                                                       *
 *                                                                         *
 *   Alternatively, this file is available under the Mozilla Public        *
 *   License Version 1.1.  You may obtain a copy of the License at         *
 *   http://www.mozilla.org/MPL/                                           *
 ***************************************************************************/
 
#ifndef TAGLIB_FILE_H
#define TAGLIB_FILE_H
 
#include "taglib_export.h"
#include "taglib.h"
#include "tag.h"
#include "tbytevector.h"
#include "tiostream.h"
 
namespace TagLib {
 
  class String;
  class Tag;
  class AudioProperties;
  class PropertyMap;
 
 
  class TAGLIB_EXPORT File
  {
  public:
    enum Position {
      Beginning,
      Current,
      End
    };
 
    virtual ~File();
 
    FileName name() const;
 
    virtual Tag *tag() const = 0;
 
    PropertyMap properties() const;
 
    void removeUnsupportedProperties(const StringList& properties);
 
    PropertyMap setProperties(const PropertyMap &properties);
 
    virtual AudioProperties *audioProperties() const = 0;
 
    virtual bool save() = 0;
 
    ByteVector readBlock(unsigned long length);
 
    void writeBlock(const ByteVector &data);
 
    long find(const ByteVector &pattern,
              long fromOffset = 0,
              const ByteVector &before = ByteVector());
 
    long rfind(const ByteVector &pattern,
               long fromOffset = 0,
               const ByteVector &before = ByteVector());
 
    void insert(const ByteVector &data, unsigned long start = 0, unsigned long replace = 0);
 
    void removeBlock(unsigned long start = 0, unsigned long length = 0);
 
    bool readOnly() const;
 
    bool isOpen() const;
 
    bool isValid() const;
 
    void seek(long offset, Position p = Beginning);
 
    void clear();
 
    long tell() const;
 
    long length();
 
    static bool isReadable(const char *file);
 
    static bool isWritable(const char *name);
 
  protected:
    File(FileName file);
 
    File(IOStream *stream);
 
    void setValid(bool valid);
 
    void truncate(long length);
 
    static unsigned int bufferSize();
 
  private:
    File(const File &);
    File &operator=(const File &);
 
    class FilePrivate;
    FilePrivate *d;
  };
 
}
 
#endif