| Package | feathers.layout |
| Interface | public interface IVariableVirtualLayout extends IVirtualLayout, ILayout, IFeathersEventDispatcher |
| Implementors | HorizontalLayout, VerticalLayout |
| Property | Defined By | ||
|---|---|---|---|
| hasVariableItemDimensions : Boolean
When the layout is virtualized, and this value is true, the items may
have variable dimensions. | IVariableVirtualLayout | ||
 | typicalItemHeight : Number
The height, in pixels, of a "typical" item that is used to virtually
fill in blanks for the layout. | IVirtualLayout | |
| typicalItemWidth : Number
The width, in pixels, of a "typical" item that is used to virtually
fill in blanks for the layout. | IVirtualLayout | |
| useVirtualLayout : Boolean
Determines if virtual layout can be used. | IVirtualLayout | |
| Method | Defined By | ||
|---|---|---|---|
| addEventListener(type:String, listener:Function):void | IFeathersEventDispatcher | |
addToVariableVirtualCacheAtIndex(index:int, item:DisplayObject = null):void
Inserts an item in to the cache at the specified index, pushing the
old cached value at that index, and all following values, up one
index. | IVariableVirtualLayout | ||
| dispatchEvent(event:Event):void | IFeathersEventDispatcher | |
| dispatchEventWith(type:String, bubbles:Boolean = false, data:Object = null):void | IFeathersEventDispatcher | |
| getScrollPositionForIndex(index:int, items:Vector.<DisplayObject>, x:Number, y:Number, width:Number, height:Number, result:Point = null):Point
Using the item dimensions, calculates a scroll position that will
ensure that the item at a given index will be visible within the
specified bounds. | ILayout | |
| getVisibleIndicesAtScrollPosition(scrollX:Number, scrollY:Number, width:Number, height:Number, itemCount:int, result:Vector.<int> = null):Vector.<int>
Determines which indices are visible with the specified view port
bounds and scroll position. | IVirtualLayout | |
| hasEventListener(type:String):Boolean | IFeathersEventDispatcher | |
| layout(items:Vector.<DisplayObject>, viewPortBounds:ViewPortBounds = null, result:LayoutBoundsResult = null):LayoutBoundsResult
Positions (and possibly resizes) the supplied items within the
optional bounds argument. | ILayout | |
| measureViewPort(itemCount:int, viewPortBounds:ViewPortBounds = null, result:Point = null):Point
Using the typical item bounds and suggested bounds, returns a set of
calculated dimensions for the view port. | IVirtualLayout | |
| removeEventListener(type:String, listener:Function):void | IFeathersEventDispatcher | |
| removeEventListeners(type:String = null):void | IFeathersEventDispatcher | |
removeFromVariableVirtualCacheAtIndex(index:int):void
Removes an item in to the cache at the specified index, moving the
values at following indexes down by one. | IVariableVirtualLayout | ||
resetVariableVirtualCache():void
Clears the cached dimensions for all virtualized indices. | IVariableVirtualLayout | ||
resetVariableVirtualCacheAtIndex(index:int, item:DisplayObject = null):void
Clears the cached dimensions for one specific virtualized index. | IVariableVirtualLayout | ||
| hasVariableItemDimensions | property |
Hide Inherited Public Properties
Show Inherited Public PropertieshasVariableItemDimensions:BooleanWhen the layout is virtualized, and this value is true, the items may have variable dimensions. If false, the items will all share the same dimensions as the typical item. Performance is better for layouts where all items have the same dimensions.
public function get hasVariableItemDimensions():Boolean public function set hasVariableItemDimensions(value:Boolean):void| addToVariableVirtualCacheAtIndex | () | method |
public function addToVariableVirtualCacheAtIndex(index:int, item:DisplayObject = null):voidInserts an item in to the cache at the specified index, pushing the old cached value at that index, and all following values, up one index.
Parameters
index:int | |
item:DisplayObject (default = null) |
| removeFromVariableVirtualCacheAtIndex | () | method |
public function removeFromVariableVirtualCacheAtIndex(index:int):voidRemoves an item in to the cache at the specified index, moving the values at following indexes down by one.
Parameters
index:int |
| resetVariableVirtualCache | () | method |
public function resetVariableVirtualCache():voidClears the cached dimensions for all virtualized indices.
| resetVariableVirtualCacheAtIndex | () | method |
public function resetVariableVirtualCacheAtIndex(index:int, item:DisplayObject = null):voidClears the cached dimensions for one specific virtualized index.
Parameters
index:int | |
item:DisplayObject (default = null) |