QDeclarativeItem Class Reference

Member Function Documentation

QDeclarativeItem::QDeclarativeItem ( QDeclarativeItem * parent = 0 )

Constructs a QDeclarativeItem with the given parent.

QDeclarativeItem::~QDeclarativeItem () [virtual]

Destroys the QDeclarativeItem.

QDeclarativeItem::Q_REVISION () [signal]

QDeclarativeItem::Q_REVISION () [signal]

QDeclarativeItem * QDeclarativeItem::childAt ( qreal x, qreal y ) const

Returns the visible child item at point (x, y), which is in this item's coordinate system, or 0 if there is no such item.

void QDeclarativeItem::forceActiveFocus ()

Forces active focus on the item.

This method sets focus on the item and makes sure that all the focus scopes higher in the object hierarchy are also given the focus.

void QDeclarativeItem::geometryChanged ( const QRectF & newGeometry, const QRectF & oldGeometry ) [virtual protected]

This function is called to handle this item's changes in geometry from oldGeometry to newGeometry. If the two geometries are the same, it doesn't do anything.

bool QDeclarativeItem::heightValid () const [protected]

Returns whether the height property has been set explicitly.

bool QDeclarativeItem::isComponentComplete () const [protected]

Returns true if construction of the QML component is complete; otherwise returns false.

It is often desirable to delay some processing until the component is completed.

See also componentComplete().

bool QDeclarativeItem::keepMouseGrab () const

Returns a value indicating whether mouse input should remain with this item exclusively.

See also setKeepMouseGrab().

QScriptValue QDeclarativeItem::mapFromItem ( const QScriptValue & item, qreal x, qreal y ) const

Maps the point (x, y), which is in item's coordinate system, to this item's coordinate system, and returns a script value with x and y properties matching the mapped cooordinate.

If item is a null value, this maps the point from the coordinate system of the root QML view.

See also Item::mapFromItem().

QScriptValue QDeclarativeItem::mapToItem ( const QScriptValue & item, qreal x, qreal y ) const

Maps the point (x, y), which is in this item's coordinate system, to item's coordinate system, and returns a script value with x and y properties matching the mapped cooordinate.

If item is a null value, this maps x and y to the coordinate system of the root QML view.

See also Item::mapToItem().

void QDeclarativeItem::setImplicitHeight ( qreal h ) [protected]

Sets the implied height of the item to h. This is the height implied by other properties that determine the content.

See also implicitHeight().

void QDeclarativeItem::setImplicitWidth ( qreal w ) [protected]

Sets the implied width of the item to w. This is the width implied by other properties that determine the content.

See also implicitWidth().

void QDeclarativeItem::setKeepMouseGrab ( bool keep )

The flag indicating whether the mouse should remain with this item is set to keep.

This is useful for items that wish to grab and keep mouse interaction following a predefined gesture. For example, an item that is interested in horizontal mouse movement may set keepMouseGrab to true once a threshold has been exceeded. Once keepMouseGrab has been set to true, filtering items will not react to mouse events.

If the item does not indicate that it wishes to retain mouse grab, a filtering item may steal the grab. For example, Flickable may attempt to steal a mouse grab if it detects that the user has begun to move the viewport.

See also keepMouseGrab().

void QDeclarativeItem::setTransformOrigin ( TransformOrigin origin )

Set the transform origin.

See also transformOrigin().

TransformOrigin QDeclarativeItem::transformOrigin () const

Returns the current transform origin.

See also setTransformOrigin().

bool QDeclarativeItem::widthValid () const [protected]

Returns whether the width property has been set explicitly.