2015-06-04 01:29:22 +01:00
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/*************************************************************************
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* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>.*
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*************************************************************************/
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#if !defined(PARTITION__H)
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#define PARTITION__H
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#include "../core/partitionnode.h"
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#include "../core/partitionrole.h"
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#include "../core/partitiontable.h"
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#include "../util/libpartitionmanagerexport.h"
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#include <QStringList>
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#include <qglobal.h>
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class Device;
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class OperationStack;
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class CoreBackendPartitionTable;
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class PartitionAlignment;
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class PartResizerWidget;
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class ResizeDialog;
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class InsertDialog;
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class NewDialog;
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class EditMountPointDialog;
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class PartPropsDialog;
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class SizeDialogBase;
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class CreateFileSystemOperation;
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class RestoreOperation;
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class SetPartFlagsOperation;
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class CopyOperation;
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class NewOperation;
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class ResizeOperation;
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class SetPartGeometryJob;
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class CreatePartitionJob;
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class SetPartFlagsJob;
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class RestoreFileSystemJob;
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class FileSystem;
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class Report;
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class QString;
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class QTextStream;
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/** A partition or some unallocated space on a Device.
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2015-07-13 15:16:36 +01:00
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Repesent partitions in a PartitionTable on a Device. Partitions can be unallocated, thus not all
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instances really are partitions in the way the user would see them.
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2015-06-04 01:29:22 +01:00
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2015-07-13 15:16:36 +01:00
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Extended partitions have child objects that represent the logicals inside them.
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2015-06-04 01:29:22 +01:00
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2015-07-13 15:16:36 +01:00
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@see PartitionTable, Device, FileSystem
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@author Volker Lanz <vl@fidra.de>
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2015-06-04 01:29:22 +01:00
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*/
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class LIBKPMCORE_EXPORT Partition : public PartitionNode
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{
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2015-07-13 15:16:36 +01:00
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friend class PartitionTable;
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friend class OperationStack;
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friend class Device;
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friend class PartitionNode;
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friend class CoreBackendPartitionTable;
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friend class PartitionAlignment;
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friend class PartResizerWidget;
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friend class ResizeDialog;
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friend class InsertDialog;
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friend class NewDialog;
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friend class EditMountPointDialog;
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friend class PartPropsDialog;
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friend class SizeDialogBase;
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friend class CreateFileSystemOperation;
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friend class RestoreOperation;
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friend class SetPartFlagsOperation;
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friend class CopyOperation;
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friend class NewOperation;
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friend class ResizeOperation;
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friend class SetPartGeometryJob;
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friend class CreatePartitionJob;
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friend class SetPartFlagsJob;
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friend class RestoreFileSystemJob;
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friend QTextStream& operator<<(QTextStream& stream, const Partition& p);
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public:
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/** A Partition state -- where did it come from? */
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enum State {
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StateNone = 0, /**< exists on disk */
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StateNew = 1, /**< from a NewOperation */
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StateCopy = 2, /**< from a CopyOperation */
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StateRestore = 3 /**< from a RestoreOperation */
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};
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Partition(PartitionNode* parent, const Device& device, const PartitionRole& role, FileSystem* fs, qint64 sectorStart, qint64 sectorEnd, QString partitionPath, PartitionTable::Flags availableFlags = PartitionTable::FlagNone, const QString& mountPoint = QString(), bool mounted = false, PartitionTable::Flags activeFlags = PartitionTable::FlagNone, State state = StateNone);
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~Partition();
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Partition(const Partition&);
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Partition& operator=(const Partition&);
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bool operator==(const Partition& other) const;
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bool operator!=(const Partition& other) const;
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qint32 number() const {
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return m_Number; /**< @return the Partition's device number, e.g. 7 for /dev/sdd7 */
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}
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bool isRoot() const {
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return false; /**< @return always false for Partition */
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}
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PartitionNode* parent() {
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return m_Parent; /**< @return the Partition's parent PartitionNode */
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}
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const PartitionNode* parent() const {
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return m_Parent; /**< @return the Partition's parent PartitionNode */
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}
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Partitions& children() {
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return m_Children; /**< @return the Partition's children. empty for non-extended. */
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}
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const Partitions& children() const {
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return m_Children; /**< @return the Partition's children. empty for non-extended. */
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}
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const QString& devicePath() const {
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return m_DevicePath; /**< @return the Partition's device path, e.g. /dev/sdd */
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}
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const QString& partitionPath() const {
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return m_PartitionPath; /**< @return the Partition's path, e.g. /dev/sdd1 */
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}
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qint64 firstSector() const {
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return m_FirstSector; /**< @return the Partition's first sector on the Device */
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}
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qint64 lastSector() const {
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return m_LastSector; /**< @return the Partition's last sector on the Device */
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}
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qint64 sectorsUsed() const;
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qint32 sectorSize() const {
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return m_SectorSize; /**< @return the sector size on the Partition's Device */
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}
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qint64 length() const {
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return lastSector() - firstSector() + 1; /**< @return the length of the Partition */
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}
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qint64 capacity() const {
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return length() * sectorSize(); /**< @return the capacity of the Partition in bytes */
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}
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qint64 used() const {
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return sectorsUsed() < 0 ? -1 : sectorsUsed() * sectorSize(); /**< @return the number of used sectors in the Partition's FileSystem */
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}
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qint64 available() const {
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return sectorsUsed() < 0 ? -1 : capacity() - used(); /**< @return the number of free sectors in the Partition's FileSystem */
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}
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qint64 minimumSectors() const;
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qint64 maximumSectors() const;
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qint64 maxFirstSector() const;
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qint64 minLastSector() const;
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QString deviceNode() const;
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const PartitionRole& roles() const {
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return m_Roles; /**< @return the Partition's role(s) */
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}
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const QString& mountPoint() const {
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return m_MountPoint; /**< @return the Partition's mount point */
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}
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PartitionTable::Flags activeFlags() const {
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return m_ActiveFlags; /**< @return the flags currently set for this Partition */
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}
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PartitionTable::Flags availableFlags() const {
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return m_AvailableFlags; /**< @return the flags available for this Partition */
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}
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bool isMounted() const {
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return m_IsMounted; /**< @return true if Partition is mounted */
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}
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FileSystem& fileSystem() {
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return *m_FileSystem; /**< @return the Partition's FileSystem */
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}
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const FileSystem& fileSystem() const {
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return *m_FileSystem; /**< @return the Partition's FileSystem */
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}
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State state() const {
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return m_State; /**< @return the Partition's state */
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}
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bool hasChildren() const;
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bool mount(Report& report);
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bool unmount(Report& report);
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bool canMount() const;
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bool canUnmount() const;
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void adjustLogicalNumbers(qint32 deletedNumber, qint32 insertedNumber);
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void checkChildrenMounted();
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void setFirstSector(qint64 s) {
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m_FirstSector = s;
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}
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void setLastSector(qint64 s) {
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m_LastSector = s;
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}
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protected:
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void append(Partition* p) {
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m_Children.append(p);
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}
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void setDevicePath(const QString& s) {
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m_DevicePath = s;
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}
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void setPartitionPath(const QString& s);
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void setRoles(const PartitionRole& r) {
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m_Roles = r;
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}
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void setMountPoint(const QString& s) {
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m_MountPoint = s;
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}
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void setFlags(PartitionTable::Flags f) {
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m_ActiveFlags = f;
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}
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void setSectorSize(qint32 s) {
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m_SectorSize = s;
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}
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void move(qint64 newStartSector);
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void setMounted(bool b) {
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m_IsMounted = b;
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}
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void setFlag(PartitionTable::Flag f) {
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m_ActiveFlags |= f;
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}
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void unsetFlag(PartitionTable::Flag f) {
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m_ActiveFlags &= ~f;
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}
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void setParent(PartitionNode* p) {
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m_Parent = p;
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}
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void setFileSystem(FileSystem* fs);
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void setState(State s) {
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m_State = s;
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}
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void deleteFileSystem();
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private:
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void setNumber(qint32 n) {
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m_Number = n;
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}
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qint32 m_Number;
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Partitions m_Children;
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PartitionNode* m_Parent;
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FileSystem* m_FileSystem;
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PartitionRole m_Roles;
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qint64 m_FirstSector;
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qint64 m_LastSector;
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QString m_DevicePath;
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QString m_PartitionPath;
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QString m_MountPoint;
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PartitionTable::Flags m_AvailableFlags;
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PartitionTable::Flags m_ActiveFlags;
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bool m_IsMounted;
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qint32 m_SectorSize;
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State m_State;
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2015-06-04 01:29:22 +01:00
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};
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QTextStream& operator<<(QTextStream& stream, const Partition& p);
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#endif
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