| Package | spark.layouts |
| Class | public class FormItemLayout |
| Inheritance | FormItemLayout  ConstraintLayout LayoutBase OnDemandEventDispatcher Object |
| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4.5 |
| Runtime Versions : | Flash Player 10, AIR 2.5 |
| Method | Defined By | ||
|---|---|---|---|
Constructor. | FormItemLayout | ||
 | addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void | OnDemandEventDispatcher | |
|
Calculates the drop location in the data provider of the drop target for
the specified dragEvent. | LayoutBase | |
| clearVirtualLayoutCache():void
When useVirtualLayout is true,
this method can be used by the layout target
to clear cached layout information when the target changes. | LayoutBase | |
| dispatchEvent(event:Event):Boolean | OnDemandEventDispatcher | |
| elementAdded(index:int):void
Called by the target after a layout element
has been added and before the target's size and display list are
validated. | LayoutBase | |
| elementRemoved(index:int):void
This method must is called by the target after a layout element
has been removed and before the target's size and display list are
validated. | LayoutBase | |
| getElementBounds(index:int):Rectangle
Returns the specified element's layout bounds as a Rectangle or null
if the index is invalid, the corresponding element is null,
includeInLayout=false,
or if this layout's target property is null. | LayoutBase | |
| getHorizontalScrollPositionDelta(navigationUnit:uint):Number
Returns the change to the horizontal scroll position to handle
different scrolling options. | LayoutBase | |
| getNavigationDestinationIndex(currentIndex:int, navigationUnit:uint, arrowKeysWrapFocus:Boolean):int
Delegation method that determines which item
to navigate to based on the current item in focus
and user input in terms of NavigationUnit. | LayoutBase | |
| getScrollPositionDeltaToElement(index:int):Point
Computes the verticalScrollPosition and
horizontalScrollPosition deltas needed to
scroll the element at the specified index into view. | LayoutBase | |
| getVerticalScrollPositionDelta(navigationUnit:uint):Number
Returns the change to the vertical scroll position to handle
different scrolling options. | LayoutBase | |
| hasEventListener(type:String):Boolean | OnDemandEventDispatcher | |
| hideDropIndicator():void
Hides the previously shown drop indicator,
created by the showDropIndicator() method,
removes it from the display list and also stops the drag scrolling. | LayoutBase | |
| measure():void
Measures the target's default size based on its content, and optionally
measures the target's default minimum size. | LayoutBase | |
| removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void | OnDemandEventDispatcher | |
| showDropIndicator(dropLocation:DropLocation):void
Sizes, positions and parents the drop indicator based on the specified
drop location. | LayoutBase | |
| updateDisplayList(width:Number, height:Number):void
Sizes and positions the target's elements. | LayoutBase | |
| updateScrollRect(w:Number, h:Number):void
Called by the target at the end of its updateDisplayList
to have the layout update its scrollRect. | LayoutBase | |
| willTrigger(type:String):Boolean | OnDemandEventDispatcher | |
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