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/*
*
* $Id: k3bdiskinfo.h 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2003-2007 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
*
* This program is free software; you can redistribute it and/or modify
* it 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.
* See the file "COPYING" for the exact licensing terms.
*/
#ifndef _K3B_DISKINFO_H_
#define _K3B_DISKINFO_H_
#include <k3bdevicetypes.h>
#include <k3btoc.h>
#include <k3bmsf.h>
#include "k3bdevice_export.h"
#include <tqcstring.h>
class kdbgstream;
namespace K3bDevice
{
/**
* This class is directly accociated to a strcuture from
* the MMC draft READ_DISK_INFO.
* It also holds some additional data.
* This class' data will be retrieved by K3bDevice::Device.
*
* Before using any values one should check diskState != STATE_UNKNOWN or
* diskState == STATE_NO_MEDIA.
* That may mean that no disk is in the drive or an error occurred.
* Writers should never give the STATE_UNKNOWN state. CD-ROM or DVD-ROM
* drives on the other hand may have trouble determining the state of the disk.
*/
class LIBK3BDEVICE_EXPORT DiskInfo
{
public:
DiskInfo();
~DiskInfo();
/**
* Returnes the state of the disk.
* See enum State.
*/
int diskState() const;
/**
* Returnes the state of the last session.
* See enum State.
*/
int lastSessionState() const;
/**
* Returnes the state of the background formatting. This does
* only make sense for DVD+RW (and MRW which is not yet supported)
*/
int bgFormatState() const;
/**
* returnes true if diskState() == STATE_EMPTY
*/
bool empty() const;
/**
* Is this a rewritable media (e.g. a CD-RW, DVD-RW, or DVD+RW)
*/
bool rewritable() const;
/**
* Is this disk appendable
* returnes true if diskState() == STATE_INCOMPLETE
*/
bool appendable() const;
/**
* The type of the disk:
* CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R(W), DVD+R(W)
*/
int mediaType() const;
/**
* This is the current profile of the drive. That means it may differ
* from drive to drive.
* -1 means no info.
* Mainly interesting for the distiction of DVD-R(W) modes:
* Sequential and Restricted Overwrite.
*/
int currentProfile() const { return m_currentProfile; }
/**
* Just for easy implementation since there are so many
* different DVD formats.
*/
bool isDvdMedia() const;
/**
* The number of sessions on the disk.
* This does not include any leadout or the last empty session
* on a DVD+-R(W)
*/
int numSessions() const;
/**
* The number of finished tracks.
* This does not include the empty track.
*/
int numTracks() const;
/**
* Number of layers on a DVD media. For CD media this is always 1.
*/
int numLayers() const;
/**
* Does only make sense for appendable disks.
*/
K3b::Msf remainingSize() const;
/**
* The capacity of the disk.
* For complete disks this may be the same as size()
*/
K3b::Msf capacity() const;
/**
* Returns the size of the used part.
* For appendable media this equals capacity() - remainingSize()
*/
K3b::Msf size() const;
/**
* Returns the size of Data area in the first layer for DL DVD media.
* Otherwise size() is returned.
*
* This does not specify the layer change sector as the data area on DVD media does
* not start at sector 0 but at sector 30000h or 31000h depending on the type.
*/
K3b::Msf firstLayerSize() const;
const TQCString& mediaId() const { return m_mediaId; }
void debug() const;
bool operator==( const DiskInfo& ) const;
bool operator!=( const DiskInfo& ) const;
private:
int m_mediaType;
int m_currentProfile;
int m_diskState;
int m_lastSessionState;
int m_bgFormatState;
int m_numSessions;
int m_numTracks;
int m_numLayers; // only for DVD media
int m_rewritable;
K3b::Msf m_capacity;
K3b::Msf m_usedCapacity;
K3b::Msf m_firstLayerSize;
TQCString m_mediaId;
friend class Device;
};
// kdbgstream& operator<<( kdbgstream& s, const DiskInfo& ngInf );
}
#endif
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