Packagemx.core
Interfacepublic interface ILayoutDirectionElement

Language Version : ActionScript 3.0
Product Version : Flex 4.1
Runtime Versions : Flash Player 10, AIR 1.5

The ILayoutDirectionElement interface defines the minimum properties and methods required for an Object to support the layoutDirection property.

See also

mx.core.LayoutDirection


Public Properties
 PropertyDefined By
  layoutDirection : String
Specifies the desired layout direction for an element: one of LayoutDirection.LTR (left to right), LayoutDirection.RTL (right to left), or null (inherit).
ILayoutDirectionElement
Public Methods
 MethodDefined By
  
An element must call this method when its layoutDirection changes or when its parent's layoutDirection changes.
ILayoutDirectionElement
Property Detail
layoutDirectionproperty
layoutDirection:String

Language Version : ActionScript 3.0
Product Version : Flex 4.1
Runtime Versions : Flash Player 10, AIR 1.5

Specifies the desired layout direction for an element: one of LayoutDirection.LTR (left to right), LayoutDirection.RTL (right to left), or null (inherit). This property is typically backed by an inheriting style. If null, the layoutDirection style will be set to undefined. Classes like GraphicElement, which implement ILayoutDirectionElement but do not support styles, must additionally support a null value for this property which means the layoutDirection must be inherited from its parent.


Implementation
    public function get layoutDirection():String
    public function set layoutDirection(value:String):void

See also

Method Detail
invalidateLayoutDirection()method
public function invalidateLayoutDirection():void

Language Version : ActionScript 3.0
Product Version : Flex 4.1
Runtime Versions : Flash Player 10, AIR 1.5

An element must call this method when its layoutDirection changes or when its parent's layoutDirection changes. If they differ, this method is responsible for mirroring the element’s contents and for updating the element’s post-layout transform so that descendants inherit a mirrored coordinate system. IVisualElements typically implement mirroring by using postLayoutTransformOffsets to scale the X axis by -1 and to translate the x coordinate of the origin by the element's width. The net effect of this "mirror" transform is to reverse the direction in which the X axis increases without changing the element's location relative to its parent's origin.