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Packagefl.core
Classpublic class UIComponent
InheritanceUIComponent Inheritance Sprite Inheritance DisplayObjectContainer Inheritance InteractiveObject Inheritance DisplayObject Inheritance EventDispatcher Inheritance Object
Subclasses BaseButton, BaseScrollPane, ColorPicker, ComboBox, IndeterminateBar, Label, NumericStepper, ProgressBar, ScrollBar, Slider, TextArea, TextInput, UILoader

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

The UIComponent class is the base class for all visual components, both interactive and noninteractive. Interactive components are defined as components that receive user input such as keyboard or mouse activity. Noninteractive components are used to display data; they do not respond to user interaction. The ProgressBar and UILoader components are examples of noninteractive components.

The Tab and arrow keys can be used to move focus to and over an interactive component; an interactive component can accept low-level events such as input from mouse and keyboard devices. An interactive component can also be disabled so that it cannot receive mouse and keyboard input.



Public Properties
 PropertyDefined By
 InheritedaccessibilityProperties : AccessibilityProperties
The current accessibility options for this display object.
DisplayObject
 Inheritedalpha : Number
Indicates the alpha transparency value of the object specified.
DisplayObject
 InheritedblendMode : String
A value from the BlendMode class that specifies which blend mode to use.
DisplayObject
 InheritedbuttonMode : Boolean
Specifies the button mode of this sprite.
Sprite
 InheritedcacheAsBitmap : Boolean
If set to true, Flash Player or Adobe AIR caches an internal bitmap representation of the display object.
DisplayObject
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 InheritedcontextMenu : NativeMenu
Specifies the context menu associated with this object.
InteractiveObject
 InheriteddoubleClickEnabled : Boolean
Specifies whether the object receives doubleClick events.
InteractiveObject
 InheriteddropTarget : DisplayObject
[read-only] Specifies the display object over which the sprite is being dragged, or on which the sprite was dropped.
Sprite
  enabled : Boolean
Gets or sets a value that indicates whether the component can accept user interaction.
UIComponent
 Inheritedfilters : Array
An indexed array that contains each filter object currently associated with the display object.
DisplayObject
  focusEnabled : Boolean
Gets or sets a Boolean value that indicates whether the component can receive focus after the user clicks it.
UIComponent
  focusManager : IFocusManager
Gets or sets the FocusManager that controls focus for this component and its peers.
UIComponent
 InheritedfocusRect : Object
Specifies whether this object displays a focus rectangle.
InteractiveObject
 Inheritedgraphics : Graphics
[read-only] Specifies the Graphics object that belongs to this sprite where vector drawing commands can occur.
Sprite
  height : Number
Gets or sets the height of the component, in pixels.
UIComponent
 InheritedhitArea : Sprite
Designates another sprite to serve as the hit area for a sprite.
Sprite
 InheritedloaderInfo : LoaderInfo
[read-only] Returns a LoaderInfo object containing information about loading the file to which this display object belongs.
DisplayObject
 Inheritedmask : DisplayObject
The calling display object is masked by the specified mask object.
DisplayObject
 InheritedmouseChildren : Boolean
Determines whether or not the children of the object are mouse enabled.
DisplayObjectContainer
 InheritedmouseEnabled : Boolean
Specifies whether this object receives mouse messages.
InteractiveObject
  mouseFocusEnabled : Boolean
Gets or sets a value that indicates whether the component can receive focus after the user clicks it.
UIComponent
 InheritedmouseX : Number
[read-only] Indicates the x coordinate of the mouse position, in pixels.
DisplayObject
 InheritedmouseY : Number
[read-only] Indicates the y coordinate of the mouse position, in pixels.
DisplayObject
 Inheritedname : String
Indicates the instance name of the DisplayObject.
DisplayObject
 InheritednumChildren : int
[read-only] Returns the number of children of this object.
DisplayObjectContainer
 InheritedopaqueBackground : Object
Specifies whether the display object is opaque with a certain background color.
DisplayObject
 Inheritedparent : DisplayObjectContainer
[read-only] Indicates the DisplayObjectContainer object that contains this display object.
DisplayObject
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
 Inheritedroot : DisplayObject
[read-only] For a display object in a loaded SWF file, the root property is the top-most display object in the portion of the display list's tree structure represented by that SWF file.
DisplayObject
 Inheritedrotation : Number
Indicates the rotation of the DisplayObject instance, in degrees, from its original orientation.
DisplayObject
 Inheritedscale9Grid : Rectangle
The current scaling grid that is in effect.
DisplayObject
  scaleX : Number
Multiplies the current width of the component by a scale factor.
UIComponent
  scaleY : Number
Multiplies the current height of the component by a scale factor.
UIComponent
 InheritedscrollRect : Rectangle
The scroll rectangle bounds of the display object.
DisplayObject
 InheritedsoundTransform : SoundTransform
Controls sound within this sprite.
Sprite
 Inheritedstage : Stage
[read-only] The Stage of the display object.
DisplayObject
 InheritedtabChildren : Boolean
Determines whether the children of the object are tab enabled.
DisplayObjectContainer
 InheritedtabEnabled : Boolean
Specifies whether this object is in the tab order.
InteractiveObject
 InheritedtabIndex : int
Specifies the tab ordering of objects in a SWF file.
InteractiveObject
 InheritedtextSnapshot : TextSnapshot
[read-only] Returns a TextSnapshot object for this DisplayObjectContainer instance.
DisplayObjectContainer
 Inheritedtransform : Transform
An object with properties pertaining to a display object's matrix, color transform, and pixel bounds.
DisplayObject
 InheriteduseHandCursor : Boolean
A Boolean value that indicates whether the pointing hand (hand cursor) appears when the mouse rolls over a sprite in which the buttonMode property is set to true.
Sprite
  version : String = "3.0.0.15"
The version number of the components.
UIComponent
  visible : Boolean
Gets or sets a value that indicates whether the current component instance is visible.
UIComponent
  width : Number
Gets or sets the width of the component, in pixels.
UIComponent
  x : Number
Gets or sets the x coordinate that represents the position of the component along the x axis within its parent container.
UIComponent
  y : Number
Gets or sets the y coordinate that represents the position of the component along the y axis within its parent container.
UIComponent
Public Methods
 MethodDefined By
  
Creates a new UIComponent component instance.
UIComponent
 Inherited
Adds a child DisplayObject instance to this DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
Adds a child DisplayObject instance to this DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.
EventDispatcher
 Inherited
Indicates whether the security restrictions would cause any display objects to be omitted from the list returned by calling the DisplayObjectContainer.getObjectsUnderPoint() method with the specified point point.
DisplayObjectContainer
  
Deletes a style property from this component instance.
UIComponent
 Inherited
Determines whether the specified display object is a child of the DisplayObjectContainer instance or the instance itself.
DisplayObjectContainer
 Inherited
Dispatches an event into the event flow.
EventDispatcher
  
Shows or hides the focus indicator on this component.
UIComponent
  
Initiates an immediate draw operation, without invalidating everything as invalidateNow does.
UIComponent
 Inherited
getBounds(targetCoordinateSpace:DisplayObject):Rectangle
Returns a rectangle that defines the area of the display object relative to the coordinate system of the targetCoordinateSpace object.
DisplayObject
 Inherited
Returns the child display object instance that exists at the specified index.
DisplayObjectContainer
 Inherited
Returns the child display object that exists with the specified name.
DisplayObjectContainer
 Inherited
Returns the index position of a child DisplayObject instance.
DisplayObjectContainer
  
Retrieves the object that currently has focus.
UIComponent
 Inherited
Returns an array of objects that lie under the specified point and are children (or grandchildren, and so on) of this DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
getRect(targetCoordinateSpace:DisplayObject):Rectangle
Returns a rectangle that defines the boundary of the display object, based on the coordinate system defined by the targetCoordinateSpace parameter, excluding any strokes on shapes.
DisplayObject
  
Retrieves a style property that is set in the style lookup chain of the component.
UIComponent
  
[static] Retrieves the default style map for the current component.
UIComponent
 Inherited
Converts the point object from the Stage (global) coordinates to the display object's (local) coordinates.
DisplayObject
 Inherited
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
Indicates whether an object has a specified property defined.
Object
 Inherited
Evaluates the display object to see if it overlaps or intersects with the obj display object.
DisplayObject
 Inherited
hitTestPoint(x:Number, y:Number, shapeFlag:Boolean = false):Boolean
Evaluates the display object to see if it overlaps or intersects with the point specified by the x and y parameters.
DisplayObject
  
invalidate(property:String, callLater:Boolean = true):void
Marks a property as invalid and redraws the component on the next frame unless otherwise specified.
UIComponent
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Converts the point object from the display object's (local) coordinates to the Stage (global) coordinates.
DisplayObject
  
[static] Merges the styles from multiple classes into one object.
UIComponent
  
Moves the component to the specified position within its parent.
UIComponent
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
Removes the specified child DisplayObject instance from the child list of the DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
Removes a child DisplayObject from the specified index position in the child list of the DisplayObjectContainer.
DisplayObjectContainer
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
 Inherited
Changes the position of an existing child in the display object container.
DisplayObjectContainer
  
Sets the focus to this component.
UIComponent
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
  
setSize(width:Number, height:Number):void
Sets the component to the specified width and height.
UIComponent
  
setStyle(style:String, value:Object):void
Sets a style property on this component instance.
UIComponent
 Inherited
startDrag(lockCenter:Boolean = false, bounds:Rectangle = null):void
Lets the user drag the specified sprite.
Sprite
 Inherited
Ends the startDrag() method.
Sprite
 Inherited
Swaps the z-order (front-to-back order) of the two specified child objects.
DisplayObjectContainer
 Inherited
swapChildrenAt(index1:int, index2:int):void
Swaps the z-order (front-to-back order) of the child objects at the two specified index positions in the child list.
DisplayObjectContainer
 Inherited
Returns the string representation of the specified object.
Object
  
Validates and updates the properties and layout of this object, redrawing it if necessary.
UIComponent
 Inherited
Returns the primitive value of the specified object.
Object
 Inherited
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
EventDispatcher
Protected Methods
 MethodDefined By
  
Returns the specified style for a component, considering all styles set on the global level, component level and instance level.
UIComponent
Events
 Event Summary Defined By
 InheritedDispatched when Flash Player or an AIR application gains operating system focus and becomes active.EventDispatcher
 InheritedDispatched when a display object is added to the display list.DisplayObject
 InheritedDispatched when a display object is added to the on stage display list, either directly or through the addition of a sub tree in which the display object is contained.DisplayObject
 InheritedDispatched when a user presses and releases the main button of the user's pointing device over the same InteractiveObject.InteractiveObject
 InheritedDispatched when the user selects the context menu associated with this interactive object in an AIR application.InteractiveObject
 InheritedDispatched when Flash Player or an AIR application loses operating system focus and is becoming inactive.EventDispatcher
 InheritedDispatched when a user presses and releases the main button of a pointing device twice in rapid succession over the same InteractiveObject when that object's doubleClickEnabled flag is set to true.InteractiveObject
 InheritedDispatched when the playhead is entering a new frame.DisplayObject
 InheritedDispatched after a display object gains focus.InteractiveObject
 InheritedDispatched after a display object loses focus.InteractiveObject
  Dispatched after the component visibility changes from visible to invisible.UIComponent
 InheritedDispatched when the user presses a key.InteractiveObject
 InheritedDispatched when the user attempts to change focus by using keyboard navigation.InteractiveObject
 InheritedDispatched when the user releases a key.InteractiveObject
 InheritedDispatched when a user presses and releases the middle button of the user's pointing device over the same InteractiveObject.InteractiveObject
 InheritedDispatched when a user presses the middle pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user releases the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user presses the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user attempts to change focus by using a pointer device.InteractiveObject
 InheritedDispatched when a user moves the pointing device while it is over an InteractiveObject.InteractiveObject
 InheritedDispatched when the user moves a pointing device away from an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user moves a pointing device over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user releases the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a mouse wheel is spun over an InteractiveObject instance.InteractiveObject
  Dispatched after the component is moved.UIComponent
 InheritedDispatched by the drag initiator InteractiveObject when the user releases the drag gesture.InteractiveObject
 InheritedDispatched by the target InteractiveObject when a dragged object is dropped on it and the drop has been accepted with a call to DragManager.acceptDragDrop().InteractiveObject
 InheritedDispatched by an InteractiveObject when a drag gesture enters its boundary.InteractiveObject
 InheritedDispatched by an InteractiveObject when a drag gesture leaves its boundary.InteractiveObject
 InheritedDispatched by an InteractiveObject continually while a drag gesture remains within its boundary.InteractiveObject
 InheritedDispatched at the beginning of a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.InteractiveObject
 InheritedDispatched during a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.InteractiveObject
 InheritedDispatched when a display object is about to be removed from the display list.DisplayObject
 InheritedDispatched when a display object is about to be removed from the display list, either directly or through the removal of a sub tree in which the display object is contained.DisplayObject
 InheritedDispatched when the display list is about to be updated and rendered.DisplayObject
  Dispatched after the component is resized.UIComponent
 InheritedDispatched when a user presses and releases the right button of the user's pointing device over the same InteractiveObject.InteractiveObject
 InheritedDispatched when a user presses the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user releases the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user moves a pointing device away from an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user moves a pointing device over an InteractiveObject instance.InteractiveObject
  Dispatched after the component visibility changes from invisible to visible.UIComponent
 InheritedDispatched when the value of the object's tabChildren flag changes.InteractiveObject
 InheritedDispatched when the object's tabEnabled flag changes.InteractiveObject
 InheritedDispatched when the value of the object's tabIndex property changes.InteractiveObject
Styles
 Style Description Defined By
  
disabledTextFormat
Type: flash.text.TextFormat
The TextFormat object to use to render the component label when the button is disabled. The default value is TextFormat("_sans", 11, 0x999999, false, false, false, '', '', TextFormatAlign.LEFT, 0, 0, 0, 0).
UIComponent
  
focusRectPadding
Type: Number Format: Length
The padding that separates the outside boundaries of the component from the outside edges of the focus indicator, in pixels. The default value is 2.
UIComponent
  
focusRectSkin
Type: Class
The skin to be used to display focus indicators. The default value is focusRectSkin.
UIComponent
  
textFormat
Type: flash.text.TextFormat
The TextFormat object to use to render the component label. The default value is TextFormat("_sans", 11, 0x000000, false, false, false, '', '', TextFormatAlign.LEFT, 0, 0, 0, 0).
UIComponent
Property Detail
enabledproperty
enabled:Boolean  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets a value that indicates whether the component can accept user interaction. A value of true indicates that the component can accept user interaction; a value of false indicates that it cannot.

If you set the enabled property to false, the color of the container is dimmed and user input is blocked (with the exception of the Label and ProgressBar components).

The default value is true.


Implementation
    public function get enabled():Boolean
    public function set enabled(value:Boolean):void
focusEnabledproperty 
focusEnabled:Boolean  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets a Boolean value that indicates whether the component can receive focus after the user clicks it. A value of true indicates that it can receive focus; a value of false indicates that it cannot.

If this property is false, focus is transferred to the first parent whose mouseFocusEnabled property is set to true.

The default value is true.


Implementation
    public function get focusEnabled():Boolean
    public function set focusEnabled(value:Boolean):void

See also

focusManagerproperty 
focusManager:IFocusManager  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets the FocusManager that controls focus for this component and its peers. Each pop-up component maintains its own focus loop and FocusManager instance. Use this property to access the correct FocusManager for this component.


Implementation
    public function get focusManager():IFocusManager
    public function set focusManager(value:IFocusManager):void
heightproperty 
height:Number  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets the height of the component, in pixels.

Setting this property causes a resize event to be dispatched. See the resize event for detailed information about when it is dispatched.

If the scaleY property of the component is not 1.0, the height of the component that is obtained from its internal coordinates will not match the height value from the parent coordinates. For example, a component that is 100 pixels in height and has a scaleY of 2 has a value of 100 pixels in the parent, but internally stores a value indicating that it is 50 pixels in height.


Implementation
    public function get height():Number
    public function set height(value:Number):void
mouseFocusEnabledproperty 
mouseFocusEnabled:Boolean  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets a value that indicates whether the component can receive focus after the user clicks it. A value of true indicates that it can receive focus; a value of false indicates that it cannot.

If this property is false, focus is transferred to the first parent whose mouseFocusEnabled property is set to true.

The default value is true.


Implementation
    public function get mouseFocusEnabled():Boolean
    public function set mouseFocusEnabled(value:Boolean):void

See also

scaleXproperty 
scaleX:Number  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Multiplies the current width of the component by a scale factor.


Implementation
    public function get scaleX():Number
    public function set scaleX(value:Number):void

See also

scaleYproperty 
scaleY:Number  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Multiplies the current height of the component by a scale factor.


Implementation
    public function get scaleY():Number
    public function set scaleY(value:Number):void

See also

versionproperty 
public var version:String = "3.0.0.15"

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

The version number of the components.


Example
The following example traces the version number for the CheckBox component instance:

import fl.controls.CheckBox;

var myCheckBox:CheckBox = new CheckBox();
trace(myCheckBox.version);
visibleproperty 
visible:Boolean  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets a value that indicates whether the current component instance is visible. A value of true indicates that the current component is visible; a value of false indicates that it is not.

When this property is set to true, the object dispatches a show event. When this property is set to false, the object dispatches a hide event. In either case, the children of the object do not generate a show or hide event unless the object specifically writes an implementation to do so.

The default value is true.


Implementation
    public function get visible():Boolean
    public function set visible(value:Boolean):void

See also

widthproperty 
width:Number  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets the width of the component, in pixels.

Setting this property causes a resize event to be dispatched. See the resize event for detailed information about when it is dispatched.

If the scaleX property of the component is not 1.0, the width of the component that is obtained from its internal coordinates will not match the width value from the parent coordinates. For example, a component that is 100 pixels in width and has a scaleX of 2 has a value of 100 pixels in the parent, but internally stores a value indicating that it is 50 pixels wide.


Implementation
    public function get width():Number
    public function set width(value:Number):void

See also

xproperty 
x:Number  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets the x coordinate that represents the position of the component along the x axis within its parent container. This value is described in pixels and is calculated from the left.

Setting this property causes the ComponentEvent.MOVE event to be dispatched.

The default value is 0.


Implementation
    public function get x():Number
    public function set x(value:Number):void

See also

yproperty 
y:Number  [read-write]

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Gets or sets the y coordinate that represents the position of the component along the y axis within its parent container. This value is described in pixels and is calculated from the top.

Setting this property causes the move event to be dispatched.


Implementation
    public function get y():Number
    public function set y(value:Number):void

See also

Constructor Detail
UIComponent()Constructor
public function UIComponent()

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Creates a new UIComponent component instance.

Method Detail
clearStyle()method
public function clearStyle(style:String):void

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Deletes a style property from this component instance.

This does not necessarily cause the getStyle() method to return a value of undefined.

Parameters

style:String — The name of the style property.

See also

drawFocus()method 
public function drawFocus(focused:Boolean):void

Language Version : ActionScript 3.0
Runtime Versions : AIR 1.0, Flash Player 9.0.28.0

Shows or hides the focus indicator on this component.

The UIComponent class implements this method by creating and positioning an instance of the class that is specified by the focusSkin style.

Parameters

focused:Boolean — Indicates whether to show or hide the focus indicator. If this value is true, the focus indicator is shown; if this value is false, the focus indicator is hidden.

drawNow()method 
public function drawNow():void