QIfMediaIndexerControl Class

Provides an interface to control the media indexer. More...

Header: #include <QIfMediaIndexerControl>
qmake: QT += ifmedia
Instantiated By: MediaIndexerControl
Inherits: QIfAbstractFeature

Public Types

enum State { Idle, Active, Paused, Error }

Properties

  • progress : const qreal
  • state : const QIfMediaIndexerControl::State

Public Functions

QIfMediaIndexerControl(QObject *parent = nullptr)
qreal progress() const
QIfMediaIndexerControl::State state() const

Public Slots

void pause()
void resume()

Signals

void progressChanged(qreal progress)
void stateChanged(QIfMediaIndexerControl::State state)

Reimplemented Protected Functions

virtual void clearServiceObject() override
virtual void connectToServiceObject(QIfServiceObject *serviceObject) override

Detailed Description

The QIfMediaIndexerControl controls the media indexer. It provides a way to temporarily pause the indexing and resume it, as well as to inquire about the current state and progress of the indexing operation.

The QIfMediaIndexerControl expects a single backend to be available. It is recommended to use it with discoveryMode set to QIfAbstractFeature::AutoDiscovery.

Member Type Documentation

enum QIfMediaIndexerControl::State

ConstantValueDescription
QIfMediaIndexerControl::Idle0The indexer is currently idle and is waiting for new files to be indexed.
QIfMediaIndexerControl::Active1The indexer is currently busy with indexing.
QIfMediaIndexerControl::Paused2The indexer is paused, due to a call to pause().
QIfMediaIndexerControl::Error3An error has occurred during the indexing operation.

Property Documentation

[read-only] progress : const qreal

Holds the progress of the indexing operation.

The value is between 0 and 1.

Access functions:

qreal progress() const

Notifier signal:

void progressChanged(qreal progress)

[read-only] state : const QIfMediaIndexerControl::State

Holds the current state of the indexer.

Access functions:

QIfMediaIndexerControl::State state() const

Notifier signal:

void stateChanged(QIfMediaIndexerControl::State state)

Member Function Documentation

QIfMediaIndexerControl::QIfMediaIndexerControl(QObject *parent = nullptr)

Constructs a QIfMediaIndexerControl.

The parent argument is passed on to the QIfAbstractFeature base class.

[slot] void QIfMediaIndexerControl::pause()

Pauses the currently ongoing indexing operation.

See also resume() and state.

[slot] void QIfMediaIndexerControl::resume()

Resumes from the Paused state and resumes the indexing operation.

See also pause() and state.

[override virtual protected] void QIfMediaIndexerControl::clearServiceObject()

Reimplements: QIfAbstractFeature::clearServiceObject().

[override virtual protected] void QIfMediaIndexerControl::connectToServiceObject(QIfServiceObject *serviceObject)

Reimplements: QIfAbstractFeature::connectToServiceObject(QIfServiceObject *serviceObject).

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