| Package | spark.components.supportClasses |
| Class | public class ButtonBarHorizontalLayout |
| Inheritance | ButtonBarHorizontalLayout  LayoutBase OnDemandEventDispatcher Object |
| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
The layout attempts to size all children to their preferred size. If there is enough space, each child is set to its preferred size, plus any excess space evenly distributed among the children.
If there is not enough space for all the children to be sized to their preferred size, then the children that are smaller than the average width are allocated their preferred size and the rest of the elements are reduced equally.
All children are set to the height of the parent.
See also
| Property | Defined By | ||
|---|---|---|---|
 | clipAndEnableScrolling : Boolean
If true, specifies to clip the children to the boundaries of the viewport. | LayoutBase | |
| dropIndicator : DisplayObject
The DisplayObject that this layout uses for
the drop indicator during a drag-and-drop operation. | LayoutBase | |
| gap : int
The horizontal space between layout elements. | ButtonBarHorizontalLayout | ||
| horizontalScrollPosition : Number
The x coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component. | LayoutBase | |
| target : GroupBase
The GroupBase container whose elements are measured, sized and positioned
by this layout. | LayoutBase | |
| typicalLayoutElement : ILayoutElement
Used by layouts when fixed row/column sizes are requested but
a specific size isn't specified. | LayoutBase | |
| useVirtualLayout : Boolean
A container can hold any number of children. | LayoutBase | |
| verticalScrollPosition : Number
The y coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component. | LayoutBase | |
| Method | Defined By | ||
|---|---|---|---|
Constructor. | ButtonBarHorizontalLayout | ||
| 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 | |
| gap | property |
Hide Inherited Public Properties
Show Inherited Public Propertiesgap:int| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
The horizontal space between layout elements. Note that the gap is only applied between layout elements, so if there's just one element, the gap has no effect on the layout.
The default value is 0.
public function get gap():int public function set gap(value:int):void| ButtonBarHorizontalLayout | () | Constructor |
public function ButtonBarHorizontalLayout()| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Constructor.