QDeclarativeItem

Synopsis

Functions

• def baselineOffset ()
• def childAt (x, y)
• def childrenRect ()
• def clip ()
• def forceActiveFocus ()
• def hasActiveFocus ()
• def height ()
• def heightValid ()
• def implicitHeight ()
• def implicitWidth ()
• def inputMethodPreHandler (arg__1)
• def isComponentComplete ()
• def keepMouseGrab ()
• def keyPressPreHandler (arg__1)
• def keyReleasePreHandler (arg__1)
• def mapFromItem (item, x, y)
• def mapToItem (item, x, y)
• def resetHeight ()
• def resetWidth ()
• def setBaselineOffset (arg__1)
• def setClip (arg__1)
• def setFocus (arg__1)
• def setHeight (arg__1)
• def setImplicitHeight (arg__1)
• def setImplicitWidth (arg__1)
• def setKeepMouseGrab (arg__1)
• def setParentItem (parent)
• def setSize (size)
• def setSmooth (arg__1)
• def setTransformOrigin (arg__1)
• def setWidth (arg__1)
• def smooth ()
• def transformOrigin ()
• def width ()
• def widthValid ()

Virtual functions

• def geometryChanged (newGeometry, oldGeometry)

Signals

• def activeFocusChanged (arg__1)
• def baselineOffsetChanged (arg__1)
• def childrenRectChanged (arg__1)
• def clipChanged (arg__1)
• def focusChanged (arg__1)
• def parentChanged (arg__1)
• def smoothChanged (arg__1)
• def stateChanged (arg__1)
• def transformOriginChanged (arg__1)

Detailed Description

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

All visual items in Qt Declarative inherit from PySide.QtDeclarative.QDeclarativeItem . Although PySide.QtDeclarative.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 PySide.QtDeclarative.QDeclarativeItem to provide your own custom visual item that inherits these features. Note that, because it does not draw anything, PySide.QtDeclarative.QDeclarativeItem sets the QGraphicsItem.ItemHasNoContents flag. If you subclass PySide.QtDeclarative.QDeclarativeItem to create a visual item, you will need to unset this flag.

class PySide.QtDeclarative.QDeclarativeItem([parent=None])

Parameters:parent – PySide.QtDeclarative.QDeclarativeItem

Constructs a PySide.QtDeclarative.QDeclarativeItem with the given parent .

PySide.QtDeclarative.QDeclarativeItem.TransformOrigin

Controls the point about which simple transforms like scale apply.

Constant	Description
QDeclarativeItem.TopLeft	The top-left corner of the item.
QDeclarativeItem.Top	The center point of the top of the item.
QDeclarativeItem.TopRight	The top-right corner of the item.
QDeclarativeItem.Left	The left most point of the vertical middle.
QDeclarativeItem.Center	The center of the item.
QDeclarativeItem.Right	The right most point of the vertical middle.
QDeclarativeItem.BottomLeft	The bottom-left corner of the item.
QDeclarativeItem.Bottom	The center point of the bottom of the item.
QDeclarativeItem.BottomRight	The bottom-right corner of the item.

PySide.QtDeclarative.QDeclarativeItem.activeFocusChanged(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

PySide.QtDeclarative.QDeclarativeItem.baselineOffset()

Return type:PySide.QtCore.qreal

See also

PySide.QtDeclarative.QDeclarativeItem.setBaselineOffset()

PySide.QtDeclarative.QDeclarativeItem.baselineOffsetChanged(arg__1)

Parameters:arg__1 – PySide.QtCore.qreal

PySide.QtDeclarative.QDeclarativeItem.childAt(x, y)

Parameters:

• x – PySide.QtCore.qreal
• y – PySide.QtCore.qreal

Return type:

PySide.QtDeclarative.QDeclarativeItem

PySide.QtDeclarative.QDeclarativeItem.childrenRect()

Return type:PySide.QtCore.QRectF

PySide.QtDeclarative.QDeclarativeItem.childrenRectChanged(arg__1)

Parameters:arg__1 – PySide.QtCore.QRectF

PySide.QtDeclarative.QDeclarativeItem.clip()

Return type:PySide.QtCore.bool

See also

PySide.QtDeclarative.QDeclarativeItem.setClip()

PySide.QtDeclarative.QDeclarativeItem.clipChanged(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

PySide.QtDeclarative.QDeclarativeItem.focusChanged(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

PySide.QtDeclarative.QDeclarativeItem.forceActiveFocus()

PySide.QtDeclarative.QDeclarativeItem.geometryChanged(newGeometry, oldGeometry)

Parameters:

• newGeometry – PySide.QtCore.QRectF
• oldGeometry – PySide.QtCore.QRectF

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.

PySide.QtDeclarative.QDeclarativeItem.hasActiveFocus()

Return type:PySide.QtCore.bool

PySide.QtDeclarative.QDeclarativeItem.height()

Return type:PySide.QtCore.qreal

Return the height of the item

PySide.QtDeclarative.QDeclarativeItem.heightValid()

Return type:PySide.QtCore.bool

Returns whether the height property has been set explicitly.

PySide.QtDeclarative.QDeclarativeItem.implicitHeight()

Return type:PySide.QtCore.qreal

Returns the height of the item that is implied by other properties that determine the content.

See also

PySide.QtDeclarative.QDeclarativeItem.setImplicitHeight()

PySide.QtDeclarative.QDeclarativeItem.implicitWidth()

Return type:PySide.QtCore.qreal

Returns the width of the item that is implied by other properties that determine the content.

See also

PySide.QtDeclarative.QDeclarativeItem.setImplicitWidth()

PySide.QtDeclarative.QDeclarativeItem.inputMethodPreHandler(arg__1)

Parameters:arg__1 – PySide.QtGui.QInputMethodEvent

PySide.QtDeclarative.QDeclarativeItem.isComponentComplete()

Return type:PySide.QtCore.bool

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

PySide.QtDeclarative.QDeclarativeItem.componentComplete()

PySide.QtDeclarative.QDeclarativeItem.keepMouseGrab()

Return type:PySide.QtCore.bool

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

See also

PySide.QtDeclarative.QDeclarativeItem.setKeepMouseGrab()

PySide.QtDeclarative.QDeclarativeItem.keyPressPreHandler(arg__1)

Parameters:arg__1 – PySide.QtGui.QKeyEvent

PySide.QtDeclarative.QDeclarativeItem.keyReleasePreHandler(arg__1)

Parameters:arg__1 – PySide.QtGui.QKeyEvent

PySide.QtDeclarative.QDeclarativeItem.mapFromItem(item, x, y)

Parameters:

• item – PySide.QtScript.QScriptValue
• x – PySide.QtCore.qreal
• y – PySide.QtCore.qreal

Return type:

PySide.QtScript.QScriptValue

PySide.QtDeclarative.QDeclarativeItem.mapToItem(item, x, y)

Parameters:

• item – PySide.QtScript.QScriptValue
• x – PySide.QtCore.qreal
• y – PySide.QtCore.qreal

Return type:

PySide.QtScript.QScriptValue

PySide.QtDeclarative.QDeclarativeItem.parentChanged(arg__1)

Parameters:arg__1 – PySide.QtDeclarative.QDeclarativeItem

PySide.QtDeclarative.QDeclarativeItem.resetHeight()

Reset the height of the item

PySide.QtDeclarative.QDeclarativeItem.resetWidth()

Reset the width of the item

PySide.QtDeclarative.QDeclarativeItem.setBaselineOffset(arg__1)

Parameters:arg__1 – PySide.QtCore.qreal

See also

PySide.QtDeclarative.QDeclarativeItem.baselineOffset()

PySide.QtDeclarative.QDeclarativeItem.setClip(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

See also

PySide.QtDeclarative.QDeclarativeItem.clip()

PySide.QtDeclarative.QDeclarativeItem.setFocus(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

PySide.QtDeclarative.QDeclarativeItem.setHeight(arg__1)

Parameters:arg__1 – PySide.QtCore.qreal

Set the height of the item

PySide.QtDeclarative.QDeclarativeItem.setImplicitHeight(arg__1)

Parameters:arg__1 – PySide.QtCore.qreal

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

See also

PySide.QtDeclarative.QDeclarativeItem.implicitHeight()

PySide.QtDeclarative.QDeclarativeItem.setImplicitWidth(arg__1)

Parameters:arg__1 – PySide.QtCore.qreal

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

See also

PySide.QtDeclarative.QDeclarativeItem.implicitWidth()

PySide.QtDeclarative.QDeclarativeItem.setKeepMouseGrab(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

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

PySide.QtDeclarative.QDeclarativeItem.keepMouseGrab()

PySide.QtDeclarative.QDeclarativeItem.setParentItem(parent)

Parameters:parent – PySide.QtDeclarative.QDeclarativeItem

See also

PySide.QtDeclarative.QDeclarativeItem.parentItem()

PySide.QtDeclarative.QDeclarativeItem.setSize(size)

Parameters:size – PySide.QtCore.QSizeF

PySide.QtDeclarative.QDeclarativeItem.setSmooth(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

Sets whether the item should be drawn with antialiasing and smooth pixmap filtering to smooth .

See also

PySide.QtDeclarative.QDeclarativeItem.smooth()

PySide.QtDeclarative.QDeclarativeItem.setTransformOrigin(arg__1)

Parameters:arg__1 – PySide.QtDeclarative.QDeclarativeItem.TransformOrigin

Set the transform origin .

See also

PySide.QtDeclarative.QDeclarativeItem.transformOrigin()

PySide.QtDeclarative.QDeclarativeItem.setWidth(arg__1)

Parameters:arg__1 – PySide.QtCore.qreal

Set the width of the item

PySide.QtDeclarative.QDeclarativeItem.smooth()

Return type:PySide.QtCore.bool

Returns true if the item should be drawn with antialiasing and smooth pixmap filtering, false otherwise.

The default is false.

See also

PySide.QtDeclarative.QDeclarativeItem.setSmooth()

PySide.QtDeclarative.QDeclarativeItem.smoothChanged(arg__1)

Parameters:arg__1 – PySide.QtCore.bool

PySide.QtDeclarative.QDeclarativeItem.stateChanged(arg__1)

Parameters:arg__1 – unicode

PySide.QtDeclarative.QDeclarativeItem.transformOrigin()

Return type:PySide.QtDeclarative.QDeclarativeItem.TransformOrigin

Returns the current transform origin.

See also

PySide.QtDeclarative.QDeclarativeItem.setTransformOrigin()

PySide.QtDeclarative.QDeclarativeItem.transformOriginChanged(arg__1)

Parameters:arg__1 – PySide.QtDeclarative.QDeclarativeItem.TransformOrigin

PySide.QtDeclarative.QDeclarativeItem.width()

Return type:PySide.QtCore.qreal

Return the width of the item

PySide.QtDeclarative.QDeclarativeItem.widthValid()

Return type:PySide.QtCore.bool

Returns whether the width property has been set explicitly.