| Package | feathers.layout |
| Class | public class AnchorLayout |
| Inheritance | AnchorLayout  EventDispatcher Object |
| Implements | ILayout |
See also
| Method | Defined By | ||
|---|---|---|---|
Constructor. | AnchorLayout | ||
 | addEventListener(type:String, listener:Function):void Registers an event listener at a certain object. | EventDispatcher | |
| dispatchEvent(event:Event):void Dispatches an event to all objects that have registered listeners for its type. | EventDispatcher | |
| dispatchEventWith(type:String, bubbles:Boolean = false, data:Object = null):void Dispatches an event with the given parameters to all objects that have registered
listeners for the given type. | EventDispatcher | |
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. | AnchorLayout | ||
| hasEventListener(type:String):Boolean Returns if there are listeners registered for a certain event type. | EventDispatcher | |
layout(items:Vector.<DisplayObject>, viewPortBounds:ViewPortBounds = null, result:LayoutBoundsResult = null):LayoutBoundsResult
Positions (and possibly resizes) the supplied items within the
optional bounds argument. | AnchorLayout | ||
| removeEventListener(type:String, listener:Function):void Removes an event listener from the object. | EventDispatcher | |
| removeEventListeners(type:String = null):void Removes all event listeners with a certain type, or all of them if type is null. | EventDispatcher | |
| AnchorLayout | () | Constructor |
Hide Inherited Public Methods
Show Inherited Public Methodspublic function AnchorLayout()Constructor.
| getScrollPositionForIndex | () | method |
public function getScrollPositionForIndex(index:int, items:Vector.<DisplayObject>, x:Number, y:Number, width:Number, height:Number, result:Point = null):PointUsing the item dimensions, calculates a scroll position that will ensure that the item at a given index will be visible within the specified bounds.
Parameters
index:int | |
items:Vector.<DisplayObject> | |
x:Number | |
y:Number | |
width:Number | |
height:Number | |
result:Point (default = null) |
Point |
| layout | () | method |
public function layout(items:Vector.<DisplayObject>, viewPortBounds:ViewPortBounds = null, result:LayoutBoundsResult = null):LayoutBoundsResultPositions (and possibly resizes) the supplied items within the optional bounds argument. If no bounds are specified, the layout algorithm will assume that the bounds start a 0,0 and have unbounded dimensions. Returns the actual bounds of the content, which may be different than the specified bounds.
Note: The items are not absolutely restricted to appear only within the bounds. The bounds can affect positioning, but the algorithm may very well ignore them completely.
If a layout implementation needs to access accurate width
and height values from items that are of type
IFeathersControl, it must call validate()
manually. For performance reasons, the container that is the parent
of the items will not call validate() before passing the
items to a layout implementation. Meeting this requirement may be as
simple as looping through the items at the beginning of
layout() and validating all items that are Feathers UI
controls:
const itemCount:int = items.length;
for(var i:int = 0; i < itemCount; i++)
{
var item:IFeathersControl = items[i] as IFeathersControl;
if(item)
{
item.validate();
}
}Parameters
items:Vector.<DisplayObject> | |
viewPortBounds:ViewPortBounds (default = null) | |
result:LayoutBoundsResult (default = null) |
LayoutBoundsResult |