Qt Documentation

Contents

QAspectEngine Class

(Qt3DCore::QAspectEngine)

Responsible for handling all the QAbstractAspect subclasses that have been registered with the scene. More...

Header: #include <Qt3DCore/QAspectEngine>
qmake: QT += 3dcore
Inherits: QObject

Public Functions

QAspectEngine(QObject *parent = nullptr)
virtual ~QAspectEngine()
QVector<Qt3DCore::QAbstractAspect *> aspects() const
QVariant executeCommand(const QString &command)
void registerAspect(Qt3DCore::QAbstractAspect *aspect)
void registerAspect(const QString &name)
Qt3DCore::QEntityPtr rootEntity() const
void setRootEntity(Qt3DCore::QEntityPtr root)
void unregisterAspect(Qt3DCore::QAbstractAspect *aspect)
void unregisterAspect(const QString &name)
  • 31 public functions inherited from QObject

Static Public Members

const QMetaObject staticMetaObject
  • 9 static public members inherited from QObject
typedef QEntityPtr

Additional Inherited Members

  • 1 property inherited from QObject
  • 1 public slot inherited from QObject
  • 2 signals inherited from QObject
  • 9 protected functions inherited from QObject

Detailed Description

Responsible for handling all the QAbstractAspect subclasses that have been registered with the scene.

The Qt3D run loop is controlled by the Qt3DRender::QAspectEngine.

Qt3DCore::QAbstractAspect subclasses can be registered by calling Qt3DCore::QAspectEngine::registerAspect() which will take care of registering the aspect and in turn that will call Qt3DCore::QAbstractAspect::onRegistered();

The simulation loop is launched as soon as a root Qt3DCore::QEntity is set on the Qt3DCore::QAspectEngine. This is followed by a call to onEngineStartup() on each aspect so that they can start their simulation work.

The simulation loop is stopped when the root entity is set to Qt3DCore::QEntityPtr(). This calls onEngineShutdown() on each aspect so that they can stop performing their simulation work.

Setting a new valid root entity would restart the simulation loop again.

Member Function Documentation

QAspectEngine::QAspectEngine(QObject *parent = nullptr)

Constructs a new QAspectEngine with parent.

[virtual] QAspectEngine::~QAspectEngine()

Destroys the engine.

QVector<Qt3DCore::QAbstractAspect *> QAspectEngine::aspects() const

Returns the aspects owned by the aspect engine.

QVariant QAspectEngine::executeCommand(const QString &command)

Executes the given command on aspect engine. Valid commands are:

  • "list aspects"

Returns the reply for the command.

void QAspectEngine::registerAspect(Qt3DCore::QAbstractAspect *aspect)

Registers a new aspect to the AspectManager. The QAspectEngine takes ownership of the aspect and will delete it when the aspect is unregistered.

void QAspectEngine::registerAspect(const QString &name)

Registers a new aspect to the AspectManager based on its name Uses the currently set aspect factory to create the actual aspect instance.

Qt3DCore::QEntityPtr QAspectEngine::rootEntity() const

Returns the root entity of the aspect engine.

See also setRootEntity().

void QAspectEngine::setRootEntity(Qt3DCore::QEntityPtr root)

Sets the root entity for the aspect engine.

See also rootEntity().

void QAspectEngine::unregisterAspect(Qt3DCore::QAbstractAspect *aspect)

Unregisters and deletes the given aspect.

void QAspectEngine::unregisterAspect(const QString &name)

Unregisters and deletes the aspect with the given name.

Related Non-Members

typedef Qt3DCore::QEntityPtr

A shared pointer for QEntity.

© 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.