KLayout Manual: Main Index » Class Index » API reference - Class QGraphicsObject

API reference - Class QGraphicsObject

Notation used in Ruby API documentation

Description: Binding of QGraphicsObject

Class hierarchy: QGraphicsObject » QObject

• Public constructors
• Public methods
• Public static methods and constants
• Protected methods (static, non-static and constructors)
• Deprecated methods (protected, public, static, non-static and constructors)
• Detailed description

Public constructors

Public methods

Public static methods and constants

Protected methods (static, non-static and constructors)

Deprecated methods (protected, public, static, non-static and constructors)

Detailed description

void _create

Description: Ensures the C++ object is created

Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created.

void _destroy

Description: Explicitly destroys the object

Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing.

[const] bool _destroyed?

Description: Returns a value indicating whether the object was already destroyed

This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself.

[const] bool _is_const_object?

Description: Returns a value indicating whether the reference is a const reference

This method returns true, if self is a const reference. In that case, only const methods may be called on self.

void _manage

Description: Marks the object as managed by the script side.

After calling this method on an object, the script side will be responsible for the management of the object. This method may be called if an object is returned from a C++ function and the object is known not to be owned by any C++ instance. If necessary, the script side may delete the object if the script's reference is no longer required.

Usually it's not required to call this method. It has been introduced in version 0.24.

void _unmanage

Description: Marks the object as no longer owned by the script side.

Calling this method will make this object no longer owned by the script's memory management. Instead, the object must be managed in some other way. Usually this method may be called if it is known that some C++ object holds and manages this object. Technically speaking, this method will turn the script's reference into a weak reference. After the script engine decides to delete the reference, the object itself will still exist. If the object is not managed otherwise, memory leaks will occur.

Usually it's not required to call this method. It has been introduced in version 0.24.

void addToIndex

Description: Method void QGraphicsObject::addToIndex()

This method is protected and can only be called from inside a derived class.

[virtual] void advance(int phase)

Description: Virtual method void QGraphicsObject::advance(int phase)

This method can be reimplemented in a derived class.

[const] const QGraphicsItem ptr asConstQGraphicsItem

Description: Delivers the base class interface QGraphicsItem of QGraphicsObject

Class QGraphicsObject is derived from multiple base classes. This method delivers the QGraphicsItem base class aspect.

Use this version if you have a const reference.

[const] const QObject ptr asConstQObject

Description: Delivers the base class interface QObject of QGraphicsObject

Class QGraphicsObject is derived from multiple base classes. This method delivers the QObject base class aspect.

Use this version if you have a const reference.

QGraphicsItem ptr asQGraphicsItem

Description: Delivers the base class interface QGraphicsItem of QGraphicsObject

Class QGraphicsObject is derived from multiple base classes. This method delivers the QGraphicsItem base class aspect.

QObject ptr asQObject

Description: Delivers the base class interface QObject of QGraphicsObject

Class QGraphicsObject is derived from multiple base classes. This method delivers the QObject base class aspect.

[virtual,const] QRectF boundingRect

Description: Virtual method QRectF QGraphicsObject::boundingRect()

This method can be reimplemented in a derived class.

[virtual] void childEvent(QChildEvent ptr arg1)

Description: Virtual method void QGraphicsObject::childEvent(QChildEvent *)

This method can be reimplemented in a derived class.

[const] QObject ptr[] children

Description: Method const QList<QObject *> &QGraphicsObject::children()

[virtual,const] bool collidesWithItem(const QGraphicsItem ptr other,const Qt_ItemSelectionMode mode)

Description: Virtual method bool QGraphicsObject::collidesWithItem(const QGraphicsItem *other, Qt::ItemSelectionMode mode)

This method can be reimplemented in a derived class.

[virtual,const] bool collidesWithPath(const QPainterPath path,const Qt_ItemSelectionMode mode)

Description: Virtual method bool QGraphicsObject::collidesWithPath(const QPainterPath &path, Qt::ItemSelectionMode mode)

This method can be reimplemented in a derived class.

[virtual,const] bool contains(const QPointF point)

Description: Virtual method bool QGraphicsObject::contains(const QPointF &point)

This method can be reimplemented in a derived class.

[virtual] void contextMenuEvent(QGraphicsSceneContextMenuEvent ptr event)

Description: Virtual method void QGraphicsObject::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)

This method can be reimplemented in a derived class.

void create

Description: Ensures the C++ object is created

Use of this method is deprecated. Use _create instead

[virtual] void customEvent(QEvent ptr arg1)

Description: Virtual method void QGraphicsObject::customEvent(QEvent *)

This method can be reimplemented in a derived class.

void destroy

Description: Explicitly destroys the object

Use of this method is deprecated. Use _destroy instead

[event] void destroyed(QObject ptr arg1)

Description: Signal declaration for QGraphicsObject::destroyed(QObject *)

You can bind a procedure to this signal.

[const] bool destroyed?

Description: Returns a value indicating whether the object was already destroyed

Use of this method is deprecated. Use _destroyed? instead

[virtual] void disconnectNotify(string signal)

Description: Virtual method void QGraphicsObject::disconnectNotify(const char *signal)

This method can be reimplemented in a derived class.

[virtual] void dragEnterEvent(QGraphicsSceneDragDropEvent ptr event)

Description: Virtual method void QGraphicsObject::dragEnterEvent(QGraphicsSceneDragDropEvent *event)

This method can be reimplemented in a derived class.

[virtual] void dragLeaveEvent(QGraphicsSceneDragDropEvent ptr event)

Description: Virtual method void QGraphicsObject::dragLeaveEvent(QGraphicsSceneDragDropEvent *event)

This method can be reimplemented in a derived class.

[virtual] void dragMoveEvent(QGraphicsSceneDragDropEvent ptr event)

Description: Virtual method void QGraphicsObject::dragMoveEvent(QGraphicsSceneDragDropEvent *event)

This method can be reimplemented in a derived class.

[virtual] void dropEvent(QGraphicsSceneDragDropEvent ptr event)

Description: Virtual method void QGraphicsObject::dropEvent(QGraphicsSceneDragDropEvent *event)

This method can be reimplemented in a derived class.

[event] void enabledChanged

Description: Signal declaration for QGraphicsObject::enabledChanged()

You can bind a procedure to this signal.

[virtual] bool event(QEvent ptr arg1)

Description: Virtual method bool QGraphicsObject::event(QEvent *)

This method can be reimplemented in a derived class.

[virtual] bool eventFilter(QObject ptr arg1,QEvent ptr arg2)

Description: Virtual method bool QGraphicsObject::eventFilter(QObject *, QEvent *)

This method can be reimplemented in a derived class.

[virtual,const] QVariant extension(const QVariant variant)

Description: Virtual method QVariant QGraphicsObject::extension(const QVariant &variant)

This method can be reimplemented in a derived class.

[virtual] void focusInEvent(QFocusEvent ptr event)

Description: Virtual method void QGraphicsObject::focusInEvent(QFocusEvent *event)

This method can be reimplemented in a derived class.

[virtual] void focusOutEvent(QFocusEvent ptr event)

Description: Virtual method void QGraphicsObject::focusOutEvent(QFocusEvent *event)

This method can be reimplemented in a derived class.

void grabGesture(const Qt_GestureType type,const Qt_QFlags_GestureFlag flags = Qt::GestureFlags())

Description: Method void QGraphicsObject::grabGesture(Qt::GestureType type, QFlags<Qt::GestureFlag> flags)

[virtual] void hoverEnterEvent(QGraphicsSceneHoverEvent ptr event)

Description: Virtual method void QGraphicsObject::hoverEnterEvent(QGraphicsSceneHoverEvent *event)

This method can be reimplemented in a derived class.

[virtual] void hoverLeaveEvent(QGraphicsSceneHoverEvent ptr event)

Description: Virtual method void QGraphicsObject::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)

This method can be reimplemented in a derived class.

[virtual] void hoverMoveEvent(QGraphicsSceneHoverEvent ptr event)

Description: Virtual method void QGraphicsObject::hoverMoveEvent(QGraphicsSceneHoverEvent *event)

This method can be reimplemented in a derived class.

[virtual] void inputMethodEvent(QInputMethodEvent ptr event)

Description: Virtual method void QGraphicsObject::inputMethodEvent(QInputMethodEvent *event)

This method can be reimplemented in a derived class.

[virtual,const] QVariant inputMethodQuery(const Qt_InputMethodQuery query)

Description: Virtual method QVariant QGraphicsObject::inputMethodQuery(Qt::InputMethodQuery query)

This method can be reimplemented in a derived class.

[virtual,const] bool isObscuredBy(const QGraphicsItem ptr item)

Description: Virtual method bool QGraphicsObject::isObscuredBy(const QGraphicsItem *item)

This method can be reimplemented in a derived class.

[const] bool is_const_object?

Description: Returns a value indicating whether the reference is a const reference

Use of this method is deprecated. Use _is_const_object? instead

[virtual] QVariant itemChange(const QGraphicsItem_GraphicsItemChange change,const QVariant value)

Description: Virtual method QVariant QGraphicsObject::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value)

This method can be reimplemented in a derived class.

[virtual] void keyPressEvent(QKeyEvent ptr event)

Description: Virtual method void QGraphicsObject::keyPressEvent(QKeyEvent *event)

This method can be reimplemented in a derived class.

[virtual] void keyReleaseEvent(QKeyEvent ptr event)

Description: Virtual method void QGraphicsObject::keyReleaseEvent(QKeyEvent *event)

This method can be reimplemented in a derived class.

[virtual] void mouseDoubleClickEvent(QGraphicsSceneMouseEvent ptr event)

Description: Virtual method void QGraphicsObject::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)

This method can be reimplemented in a derived class.

[virtual] void mouseMoveEvent(QGraphicsSceneMouseEvent ptr event)

Description: Virtual method void QGraphicsObject::mouseMoveEvent(QGraphicsSceneMouseEvent *event)

This method can be reimplemented in a derived class.

[virtual] void mousePressEvent(QGraphicsSceneMouseEvent ptr event)

Description: Virtual method void QGraphicsObject::mousePressEvent(QGraphicsSceneMouseEvent *event)

This method can be reimplemented in a derived class.

[virtual] void mouseReleaseEvent(QGraphicsSceneMouseEvent ptr event)

Description: Virtual method void QGraphicsObject::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)

This method can be reimplemented in a derived class.

[static] new QGraphicsObject new(QGraphicsItem ptr parent = 0)

Description: Constructor QGraphicsObject::QGraphicsObject(QGraphicsItem *parent)

This method creates an object of class QGraphicsObject.

Python specific notes:

This method is the default initializer of the object

[event] void opacityChanged

Description: Signal declaration for QGraphicsObject::opacityChanged()

You can bind a procedure to this signal.

[virtual,const] QPainterPath opaqueArea

Description: Virtual method QPainterPath QGraphicsObject::opaqueArea()

This method can be reimplemented in a derived class.

[virtual] void paint(QPainter ptr painter,const QStyleOptionGraphicsItem ptr option,QWidget ptr widget)

Description: Virtual method void QGraphicsObject::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

This method can be reimplemented in a derived class.

[event] void parentChanged

Description: Signal declaration for QGraphicsObject::parentChanged()

You can bind a procedure to this signal.

void prepareGeometryChange

Description: Method void QGraphicsObject::prepareGeometryChange()

This method is protected and can only be called from inside a derived class.

[const] int receivers(string signal)

Description: Method int QGraphicsObject::receivers(const char *signal)

This method is protected and can only be called from inside a derived class.

void removeFromIndex

Description: Method void QGraphicsObject::removeFromIndex()

This method is protected and can only be called from inside a derived class.

[event] void rotationChanged

Description: Signal declaration for QGraphicsObject::rotationChanged()

You can bind a procedure to this signal.

[event] void scaleChanged

Description: Signal declaration for QGraphicsObject::scaleChanged()

You can bind a procedure to this signal.

[virtual] bool sceneEvent(QEvent ptr event)

Description: Virtual method bool QGraphicsObject::sceneEvent(QEvent *event)

This method can be reimplemented in a derived class.

[virtual] bool sceneEventFilter(QGraphicsItem ptr watched,QEvent ptr event)

Description: Virtual method bool QGraphicsObject::sceneEventFilter(QGraphicsItem *watched, QEvent *event)

This method can be reimplemented in a derived class.

[const] QObject ptr sender

Description: Method QObject *QGraphicsObject::sender()

This method is protected and can only be called from inside a derived class.

[virtual] void setExtension(unsigned int extension,const QVariant variant)

Description: Virtual method void QGraphicsObject::setExtension(QGraphicsItem::Extension extension, const QVariant &variant)

This method can be reimplemented in a derived class.

[virtual,const] QPainterPath shape

Description: Virtual method QPainterPath QGraphicsObject::shape()

This method can be reimplemented in a derived class.

[static] QMetaObject staticMetaObject

Description: Obtains the static MetaObject for this class.

[virtual,const] bool supportsExtension(unsigned int extension)

Description: Virtual method bool QGraphicsObject::supportsExtension(QGraphicsItem::Extension extension)

This method can be reimplemented in a derived class.

[virtual] void timerEvent(QTimerEvent ptr arg1)

Description: Virtual method void QGraphicsObject::timerEvent(QTimerEvent *)

This method can be reimplemented in a derived class.

[static] string tr(string s,string c = 0)

Description: Static method QString QGraphicsObject::tr(const char *s, const char *c)

This method is static and can be called without an instance.

[static] string tr(string s,string c,int n)

Description: Static method QString QGraphicsObject::tr(const char *s, const char *c, int n)

This method is static and can be called without an instance.

[static] string trUtf8(string s,string c = 0)

Description: Static method QString QGraphicsObject::trUtf8(const char *s, const char *c)

This method is static and can be called without an instance.

[static] string trUtf8(string s,string c,int n)

Description: Static method QString QGraphicsObject::trUtf8(const char *s, const char *c, int n)

This method is static and can be called without an instance.

[virtual,const] int type

Description: Virtual method int QGraphicsObject::type()

This method can be reimplemented in a derived class.

void ungrabGesture(const Qt_GestureType type)

Description: Method void QGraphicsObject::ungrabGesture(Qt::GestureType type)

[event] void visibleChanged

Description: Signal declaration for QGraphicsObject::visibleChanged()

You can bind a procedure to this signal.

[virtual] void wheelEvent(QGraphicsSceneWheelEvent ptr event)

Description: Virtual method void QGraphicsObject::wheelEvent(QGraphicsSceneWheelEvent *event)

This method can be reimplemented in a derived class.

[event] void xChanged

Description: Signal declaration for QGraphicsObject::xChanged()

You can bind a procedure to this signal.

[event] void yChanged

Description: Signal declaration for QGraphicsObject::yChanged()

You can bind a procedure to this signal.

[event] void zChanged

Description: Signal declaration for QGraphicsObject::zChanged()

You can bind a procedure to this signal.