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QDeclarativeItem Class Reference
^{[QtDeclarative module]}

The QDeclarativeItem class provides the most basic of all visual items in QML. More...

Inherits QGraphicsObject and QDeclarativeParserStatus.

Types

• enum TransformOrigin { TopLeft, Top, TopRight, Left, ..., BottomRight }

Methods

• __init__ (self, QDeclarativeItem parent = None)
• float baselineOffset (self)
• QRectF boundingRect (self)
• QRectF childrenRect (self)
• classBegin (self)
• bool clip (self)
• componentComplete (self)
• bool event (self, QEvent)
• geometryChanged (self, QRectF newGeometry, QRectF oldGeometry)
• bool hasFocus (self)
• bool heightValid (self)
• float implicitHeight (self)
• float implicitWidth (self)
• inputMethodEvent (self, QInputMethodEvent)
• QVariant inputMethodQuery (self, Qt.InputMethodQuery query)
• bool isComponentComplete (self)
• QVariant itemChange (self, QGraphicsItem.GraphicsItemChange, QVariant)
• bool keepMouseGrab (self)
• keyPressEvent (self, QKeyEvent event)
• keyReleaseEvent (self, QKeyEvent event)
• paint (self, QPainter, QStyleOptionGraphicsItem, QWidget)
• QDeclarativeItem parentItem (self)
• bool sceneEvent (self, QEvent)
• setBaselineOffset (self, float)
• setClip (self, bool)
• setHeight (self, float)
• setImplicitHeight (self, float)
• setImplicitWidth (self, float)
• setKeepMouseGrab (self, bool)
• setParentItem (self, QDeclarativeItem parent)
• setSmooth (self, bool)
• setTransformOrigin (self, TransformOrigin)
• setWidth (self, float)
• bool smooth (self)
• TransformOrigin transformOrigin (self)
• bool widthValid (self)

All visual items in Qt Declarative inherit from QDeclarativeItem. Although QDeclarativeItem has no visual appearance, it defines all the properties that are common across visual items - such as the x and y position, the width and height, anchoring and key handling.

You can subclass QDeclarativeItem to provide your own custom visual item that inherits these features. Note that, because it does not draw anything, QDeclarativeItem sets the QGraphicsItem.ItemHasNoContents flag. If you subclass QDeclarativeItem to create a visual item, you will need to unset this flag.

Type Documentation

QDeclarativeItem.TransformOrigin

Controls the point about which simple transforms like scale apply.

QDeclarativeItem.__init__ (self, QDeclarativeItem parent = None)

The parent argument, if not None, causes self to be owned by Qt instead of PyQt.

Constructs a QDeclarativeItem with the given parent.

float QDeclarativeItem.baselineOffset (self)

QRectF QDeclarativeItem.boundingRect (self)

QRectF QDeclarativeItem.childrenRect (self)

QDeclarativeItem.classBegin (self)

bool QDeclarativeItem.clip (self)

QDeclarativeItem.componentComplete (self)

bool QDeclarativeItem.event (self, QEvent)

QDeclarativeItem.geometryChanged (self, QRectF newGeometry, QRectF oldGeometry)

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.hasFocus (self)

bool QDeclarativeItem.heightValid (self)

Returns whether the height property has been set explicitly.

float QDeclarativeItem.implicitHeight (self)

float QDeclarativeItem.implicitWidth (self)

QDeclarativeItem.inputMethodEvent (self, QInputMethodEvent)

QVariant QDeclarativeItem.inputMethodQuery (self, Qt.InputMethodQuery query)

bool QDeclarativeItem.isComponentComplete (self)

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

See also componentComplete().

QVariant QDeclarativeItem.itemChange (self, QGraphicsItem.GraphicsItemChange, QVariant)

bool QDeclarativeItem.keepMouseGrab (self)

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

See also setKeepMouseGrab().

QDeclarativeItem.keyPressEvent (self, QKeyEvent event)

QDeclarativeItem.keyReleaseEvent (self, QKeyEvent event)

QDeclarativeItem.paint (self, QPainter, QStyleOptionGraphicsItem, QWidget)

QDeclarativeItem QDeclarativeItem.parentItem (self)

bool QDeclarativeItem.sceneEvent (self, QEvent)

QDeclarativeItem.setBaselineOffset (self, float)

QDeclarativeItem.setClip (self, bool)

QDeclarativeItem.setHeight (self, float)

QDeclarativeItem.setImplicitHeight (self, float)

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

See also implicitHeight().

QDeclarativeItem.setImplicitWidth (self, float)

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

See also implicitWidth().

QDeclarativeItem.setKeepMouseGrab (self, bool)

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

See also keepMouseGrab().

QDeclarativeItem.setParentItem (self, QDeclarativeItem parent)

The parent argument, if not None, causes self to be owned by Qt instead of PyQt.

QDeclarativeItem.setSmooth (self, bool)

QDeclarativeItem.setTransformOrigin (self, TransformOrigin)

Set the transform origin.

See also transformOrigin().

QDeclarativeItem.setWidth (self, float)

bool QDeclarativeItem.smooth (self)

TransformOrigin QDeclarativeItem.transformOrigin (self)

Returns the current transform origin.

See also setTransformOrigin().

bool QDeclarativeItem.widthValid (self)

Returns whether the width property has been set explicitly.