Packagecom.addicted2flash.layout.component
Classpublic class UIScrollBar
InheritanceUIScrollBar Inheritance UIContainer Inheritance UIComponent Inheritance flash.display.Sprite
ImplementsIUIScrollBar

ScrollBar component. Added IUIScrollBarObservers get notifications about the change of the scroll position. In addition it is possible to set the scroll size or the scroll position.



Public Properties
 PropertyDefined by
 Inheritedbounds : Rectangle
Returns a copy of the bounds of the component.
UIComponent
 InheritedcomponentCount : int
Returns the total amount of components in the container.
UIContainer
 Inheritedconstraint : Object
Returns the constraint of the component.
UIComponent
 InheritedcontentHeight : Number
Returns the occupied height of all components.
UIContainer
 InheritedcontentWidth : Number
Returns the occupied width of all components.
UIContainer
  currentStep : int
[read-only] Returns the current step of the scrollbar.
UIScrollBar
 InheriteddesiredHeight : Number
Returns the desired height of the component.
UIComponent
 InheriteddesiredPercentHeight : Number
Sets the desired height of the component as percent value.
UIComponent
 InheriteddesiredPercentWidth : Number
Sets the desired width of the component as percent value.
UIComponent
 InheriteddesiredWidth : Number
Returns the desired width of the component.
UIComponent
 InheritedhasPercentagedHeight : Boolean
Returns true if desired height should be calculated in percentaged values.
UIComponent
 InheritedhasPercentagedWidth : Boolean
Returns true if desired width should be calculated in percentaged values.
UIComponent
 Inheritedheight : Number
Returns the height of the component.
UIComponent
 InheritedhorizontalAlignment : int
Returns the horiziontal alignment of the component.
UIComponent
 InheritedisValid : Boolean
Returns true if component is in a valid state.
UIComponent
 Inheritedlayout : ILayout
Returns the layout of the container.
UIContainer
 InheritedlayoutObserverCount : int
Returns the total amount of ILayoutObserver of this ILayoutObservable.
UIComponent
 Inheritedmargin : Margin
Returns the margin of the component.
UIComponent
 InheritedmaximumHeight : Number
Returns the maximum height of the component.
UIComponent
 InheritedmaximumWidth : Number
Returns the maximum width of the component.
UIComponent
 InheritedmeasuredDesiredHeight : Number
Sets the measured desired height of the component.
UIComponent
 InheritedmeasuredDesiredWidth : Number
Sets the measured desired width of the component.
UIComponent
 InheritedmeasuredMinimumHeight : Number
Sets the measured minimum height of the component.
UIComponent
 InheritedmeasuredMinimumWidth : Number
Sets the measured minimum width of the component.
UIComponent
 InheritedminimumHeight : Number
Returns the minimum height of the component.
UIComponent
 InheritedminimumWidth : Number
Returns the minimum width of the component.
UIComponent
  orientation : int
Returns the orientation of the scrollbar.
UIScrollBar
 Inheritedpadding : Padding
Returns the padding of the component.
UIComponent
 InheritedparentContainer : IUIContainer
Returns the parent IUIContainer of the component.
UIComponent
  scroller : UIScroller
[write-only] Sets the parent scroller.
UIScrollBar
  scrollPosition : Number
Returns the normalized position of the thumb in relation to the scrollbar (between 0 and 1).
UIScrollBar
  scrollSize : Number
Returns the normalized size of the thumb in relation to the scrollbar (between 0 and 1).
UIScrollBar
 Inheritedstate : int
Returns the state of the component.
UIComponent
  stepSize : Number
Returns the normalized size of a step (between 0 and 1).
UIScrollBar
 InheritedverticalAlignment : int
Returns the vertical alignment of the component.
UIComponent
 Inheritedwidth : Number
Returns the width of the component.
UIComponent
 Inheritedx : Number
Returns the x position of the component.
UIComponent
 Inheritedy : Number
Returns the y position of the component.
UIComponent
Public Methods
 MethodDefined by
  
UIScrollBar(thumb:UIComponent, track:UIComponent, orientation:int)
Creates a new UIScrollBar.
UIScrollBar
 Inherited
add(c:IUIComponent, constraint:Object = null):IUIComponent
Adds a component to the container with a given constraint.
UIContainer
 Inherited
addAt(i:int, c:IUIComponent, constraint:Object = null):IUIComponent
Adds a component to the container, at a spcific index, with a given constraint.
UIContainer
 Inherited
Adds an ILayoutObserver to the set of observers for this object, provided that it is not the same as some observer already in the set.
UIComponent
 Inherited
Returns true if given component exists within containers list.
UIContainer
  
dispose():void
free memory for garbage collection.
UIScrollBar
 Inherited
findComponent(x:Number, y:Number):IUIComponent
Returns the component at the given position.
UIContainer
 Inherited
Returns the component at the given index.
UIContainer
 Inherited
Returns the index of the given component.
UIContainer
 Inherited
invalidate():void
Component will be measured and rearranged.
UIComponent
 Inherited
lock():void
Locks invalidation lifecycle when adding/removing components (no internal invalidate() calls after add/remove).
UIContainer
 Inherited
move(x:Number, y:Number):Boolean
Sets the position of the component and returns true if position has changed.
UIComponent
 Inherited
notifyLayoutObservers(type:int):void
Registered ILayoutObserver will be notified.
UIComponent
 Inherited
Removes a component from the container.
UIContainer
 Inherited
removeAll():void
Removes all components from the container.
UIContainer
 Inherited
Removes a component from the container, at a specific index.
UIContainer
 Inherited
Deletes an ILayoutObserver from the set of observers of this object.
UIComponent
 Inherited
resize(w:Number, h:Number):Boolean
Sets the size of the bounds and the desired size (pixel values) of the component.
UIComponent
 Inherited
setAt(i:int, c:IUIComponent, constraint:Object = null):IUIComponent
Replaces a component at a given index.
UIContainer
 Inherited
setLayoutSize(w:Number, h:Number):Boolean
This method is used for updating the size of the bounds within a validation lifecycle (in arrange process within a container).
UIComponent
  
toString():String
Returns the string representation of the scrollbar.
UIScrollBar
 Inherited
unlock():void
Unlocks invalidation lifecycle and calls invalidate() if container is not valid.
UIContainer
Protected Methods
 MethodDefined by
  
arrange():void
Concrete implementations need to override this method to arrange and size their components, depending on their bounds.
UIScrollBar
 Inherited
Concrete implementations need to override this method to handle horizontal overflow.
UIContainer
  
measure():void
Concrete implemenations need to override this method to set its sizes (measured desired, measured minimum size).
UIScrollBar
 Inherited
Validates the content bounds of the UIContainer.
UIContainer
 Inherited
Concrete implementations need to override this method to handle vertical overflow.
UIContainer
Property detail
currentStepproperty
currentStep:int  [read-only]

Returns the current step of the scrollbar.

Implementation
    public function get currentStep():int
orientationproperty 
orientation:int  [read-write]

Returns the orientation of the scrollbar.

Implementation
    public function get orientation():int
    public function set orientation(value:int):void
scrollerproperty 
scroller:UIScroller  [write-only]

Sets the parent scroller. Necessary when arrows are needed.

Implementation
    public function set scroller(value:UIScroller):void
scrollPositionproperty 
scrollPosition:Number  [read-write]

Returns the normalized position of the thumb in relation to the scrollbar (between 0 and 1).

Implementation
    public function get scrollPosition():Number
    public function set scrollPosition(value:Number):void
scrollSizeproperty 
scrollSize:Number  [read-write]

Returns the normalized size of the thumb in relation to the scrollbar (between 0 and 1).

Implementation
    public function get scrollSize():Number
    public function set scrollSize(value:Number):void
stepSizeproperty 
stepSize:Number  [read-write]

Returns the normalized size of a step (between 0 and 1).

The size determines the size of a step when a mousewheel or keyboard event occures.

Implementation
    public function get stepSize():Number
    public function set stepSize(value:Number):void
Constructor detail
UIScrollBar()constructor
public function UIScrollBar(thumb:UIComponent, track:UIComponent, orientation:int)

Creates a new UIScrollBar.

Parameters
thumb:UIComponent — the thumb of the scrollbar
 
track:UIComponent — the track of the scrollbar
 
orientation:int — orientation of the scrollbar

See also

Method detail
arrange()method
protected override function arrange():void

Concrete implementations need to override this method to arrange and size their components, depending on their bounds.

dispose()method 
public override function dispose():void

free memory for garbage collection.

measure()method 
protected override function measure():void

Concrete implemenations need to override this method to set its sizes (measured desired, measured minimum size).

This offers the possibility for container implementations to adjust their minimum size to the size of its components.

toString()method 
public override function toString():String

Returns the string representation of the scrollbar.

Returns
String — the string representation of the scrollbar