AbstractArchive Class

class QInstaller::AbstractArchive

The AbstractArchive class is the base class for classes representing different archive files. It cannot be instantiated on its own but defines the API and provides common functionality when subclassed. More...

Header: #include <AbstractArchive>
Inherits: QObject
Inherited By:

QInstaller::Lib7zArchive, QInstaller::LibArchiveArchive, and QInstaller::LibArchiveWrapper

Public Functions

AbstractArchive(QObject *parent = nullptr)
virtual ~AbstractArchive() = 0
virtual void close() = 0
virtual bool create(const QStringList &data) = 0
virtual QString errorString() const
virtual bool extract(const QString &dirPath) = 0
virtual bool extract(const QString &dirPath, const quint64 totalFiles) = 0
virtual bool isSupported() = 0
virtual QVector<QInstaller::ArchiveEntry> list() = 0
virtual bool open(QIODeviceBase::OpenMode mode) = 0
virtual void setCompressionLevel(const QInstaller::AbstractArchive::CompressionLevel level)
virtual void setFilename(const QString &filename) = 0

Public Slots

virtual void cancel() = 0

Signals

void completedChanged(const quint64 completed, const quint64 total)
void currentEntryChanged(const QString &filename)

Protected Functions

QInstaller::AbstractArchive::CompressionLevel compressionLevel() const
void setErrorString(const QString &error)

Detailed Description

Member Function Documentation

[explicit] AbstractArchive::AbstractArchive(QObject *parent = nullptr)

Constructs a new archive object with parent as parent. Cannot be called directly but instead from subclass constructors.

[pure virtual noexcept] AbstractArchive::~AbstractArchive()

Virtual destructor for AbstractArchive.

[pure virtual slot] void AbstractArchive::cancel()

Cancels current operation. A subclass should implement this slot.

[pure virtual] void AbstractArchive::close()

Closes the archive. A subclass should implement this method.

[signal] void AbstractArchive::completedChanged(const quint64 completed, const quint64 total)

The ratio of completed entries from total changed. Subclasses should emit this whenever the progress changes.

[protected] QInstaller::AbstractArchive::CompressionLevel AbstractArchive::compressionLevel() const

Returns the current compression level.

See also setCompressionLevel().

[pure virtual] bool AbstractArchive::create(const QStringList &data)

Creates an archive from data. Returns true on success; false otherwise. A subclass should implement this method.

[signal] void AbstractArchive::currentEntryChanged(const QString &filename)

Current entry changed to filename. Subclasses should emit this signal whenever the entry to process is changed.

[virtual] QString AbstractArchive::errorString() const

Returns a human-readable description of the last error that occurred.

See also setErrorString().

[pure virtual] bool AbstractArchive::extract(const QString &dirPath)

Extracts the archive to dirPath. Returns true on success; false otherwise. A subclass should implement this method.

[pure virtual] bool AbstractArchive::extract(const QString &dirPath, const quint64 totalFiles)

Extracts the contents of an archive to dirPath with precalculated count of totalFiles. Returns true on success; false otherwise. A subclass should implement this method.

[pure virtual] bool AbstractArchive::isSupported()

Returns true if the archive is supported; false otherwise. A subclass should implement this method.

[pure virtual] QVector<QInstaller::ArchiveEntry> AbstractArchive::list()

Returns a list of entries in this archive. A subclass should implement this method.

[pure virtual] bool AbstractArchive::open(QIODeviceBase::OpenMode mode)

Opens the file device for an archive in mode. Returns true on success; false otherwise. A subclass should implement this method.

[virtual] void AbstractArchive::setCompressionLevel(const QInstaller::AbstractArchive::CompressionLevel level)

Sets the compression level for new archives to level.

See also compressionLevel().

[protected] void AbstractArchive::setErrorString(const QString &error)

Sets a human-readable description of the current error.

See also errorString().

[pure virtual] void AbstractArchive::setFilename(const QString &filename)

Sets the filename for the archive. A subclass should implement this method.

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