Adobe® Flex® 4 Language Reference
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spark.components.supportClasses 
ButtonBarHorizontalLayout 
Packagespark.components.supportClasses
Classpublic class ButtonBarHorizontalLayout
InheritanceButtonBarHorizontalLayout Inheritance LayoutBase Inheritance OnDemandEventDispatcher Inheritance Object

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

The ButtonBarHorizontalLayout class is a layout specifically designed for the Spark ButtonBar skins. The layout lays out the children horizontally, left to right.

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



Public Properties
 PropertyDefined By
 InheritedclipAndEnableScrolling : Boolean
If true, specifies to clip the children to the boundaries of the viewport.
LayoutBase
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 InheriteddropIndicator : 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
 InheritedhorizontalScrollPosition : 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
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
 Inheritedtarget : GroupBase
The GroupBase container whose elements are measured, sized and positioned by this layout.
LayoutBase
 InheritedtypicalLayoutElement : ILayoutElement
Used by layouts when fixed row/column sizes are requested but a specific size isn't specified.
LayoutBase
 InheriteduseVirtualLayout : Boolean
A container can hold any number of children.
LayoutBase
 InheritedverticalScrollPosition : 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
Public Methods
 MethodDefined By
  
Constructor.
ButtonBarHorizontalLayout
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
OnDemandEventDispatcher
 Inherited
Calculates the drop location in the data provider of the drop target for the specified dragEvent.
LayoutBase
 Inherited
When useVirtualLayout is true, this method can be used by the layout target to clear cached layout information when the target changes.
LayoutBase
 Inherited
OnDemandEventDispatcher
 Inherited
Called by the target after a layout element has been added and before the target's size and display list are validated.
LayoutBase
 Inherited
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
 Inherited
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
 Inherited
Returns the change to the horizontal scroll position to handle different scrolling options.
LayoutBase
 Inherited
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
 Inherited
Computes the verticalScrollPosition and horizontalScrollPosition deltas needed to scroll the element at the specified index into view.
LayoutBase
 Inherited
Returns the change to the horizontal scroll position to handle different scrolling options.
LayoutBase
 Inherited
OnDemandEventDispatcher
 Inherited
Indicates whether an object has a specified property defined.
Object
 Inherited
Hides the previously shown drop indicator, created by the showDropIndicator() method, removes it from the display list and also stops the drag scrolling.
LayoutBase
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Measures the target's default size based on its content, and optionally measures the target's default minimum size.
LayoutBase
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
OnDemandEventDispatcher
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Sizes, positions and parents the drop indicator based on the specified drop location.
LayoutBase
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Sizes and positions the target's elements.
LayoutBase
 Inherited
Called by the target at the end of its updateDisplayList to have the layout update its scrollRect.
LayoutBase
 Inherited
Returns the primitive value of the specified object.
Object
 Inherited
OnDemandEventDispatcher
Protected Methods
 MethodDefined By
 Inherited
Calculates how much to scroll for the specified dropLocation during a drag and drop gesture.
LayoutBase
 Inherited
Returns the index where a new item should be inserted if the user releases the mouse at the specified coordinates while completing a drag and drop gesture.
LayoutBase
 Inherited
Calculates the bounds for the drop indicator that provides visual feedback to the user of where the items will be inserted at the end of a drag and drop gesture.
LayoutBase
 Inherited
Returns the bounds of the first layout element that either spans or is above the scrollRect's top edge.
LayoutBase
 Inherited
Returns the bounds of the first layout element that either spans or is below the scrollRect's bottom edge.
LayoutBase
 Inherited
Returns the bounds of the first layout element that either spans or is to the left of the scrollRect's left edge.
LayoutBase
 Inherited
Returns the bounds of the first layout element that either spans or is to the right of the scrollRect's right edge.
LayoutBase
 Inherited
Returns the bounds of the target's scroll rectangle in layout coordinates.
LayoutBase
 Inherited
Called when the verticalScrollPosition or horizontalScrollPosition properties change.
LayoutBase
Property Detail

gap

property
gap: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.



Implementation
    public function get gap():int
    public function set gap(value:int):void
Constructor Detail

ButtonBarHorizontalLayout

()Constructor
public function ButtonBarHorizontalLayout()

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Constructor.