mx.core.ButtonAsset - Adobe® Flex® 4 Language Reference (Flex 4)

Package	mx.core
Class	public class ButtonAsset
Inheritance	ButtonAsset FlexSimpleButton SimpleButton InteractiveObject DisplayObject EventDispatcher Object
Implements	IFlexAsset, IFlexDisplayObject

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

ButtonAsset is a subclass of the flash.display.SimpleButton class which represents button symbols that you embed in a Flex application from a SWF file produced by Flash. It implements the IFlexDisplayObject interface, which makes it possible for a SimpleButtonAsset to be displayed in an Image control, or to be used as a container background or a component skin.

This class is included in Flex for completeness, so that any kind of symbol in a SWF file produced by Flash can be embedded in a Flex application. However, Flex applications do not typically use embedded SimpleButtons. Refer to more commonly-used asset classes such as BitmapAsset for more information about how embedded assets work in Flex.

Public Properties

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	Property		Defined By
		accessibilityImplementation : AccessibilityImplementation The current accessibility implementation (AccessibilityImplementation) for this InteractiveObject instance.	InteractiveObject
		accessibilityProperties : AccessibilityProperties The current accessibility options for this display object.	DisplayObject
		alpha : Number Indicates the alpha transparency value of the object specified.	DisplayObject
		blendMode : String A value from the BlendMode class that specifies which blend mode to use.	DisplayObject
		blendShader : Shader [write-only] Sets a shader that is used for blending the foreground and background.	DisplayObject
		cacheAsBitmap : Boolean If set to true, Flash runtimes cache an internal bitmap representation of the display object.	DisplayObject
		cacheAsBitmapMatrix : Matrix If non-null, this Matrix object defines how a display object is rendered when cacheAsBitmap is set to true.	DisplayObject
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		contextMenu : NativeMenu Specifies the context menu associated with this object.	InteractiveObject
		doubleClickEnabled : Boolean Specifies whether the object receives doubleClick events.	InteractiveObject
		downState : DisplayObject Specifies a display object that is used as the visual object for the button "Down" state —the state that the button is in when the user selects the hitTestState object.	SimpleButton
		enabled : Boolean A Boolean value that specifies whether a button is enabled.	SimpleButton
		filters : Array An indexed array that contains each filter object currently associated with the display object.	DisplayObject
		focusRect : Object Specifies whether this object displays a focus rectangle.	InteractiveObject
		height : Number Indicates the height of the display object, in pixels.	DisplayObject
		hitTestState : DisplayObject Specifies a display object that is used as the hit testing object for the button.	SimpleButton
		loaderInfo : LoaderInfo [read-only] Returns a LoaderInfo object containing information about loading the file to which this display object belongs.	DisplayObject
		mask : DisplayObject The calling display object is masked by the specified mask object.	DisplayObject
		measuredHeight : Number [read-only] The measured height of this object.	ButtonAsset
		measuredWidth : Number [read-only] The measured width of this object.	ButtonAsset
		mouseEnabled : Boolean Specifies whether this object receives mouse, or other user input, messages.	InteractiveObject
		mouseX : Number [read-only] Indicates the x coordinate of the mouse or user input device position, in pixels.	DisplayObject
		mouseY : Number [read-only] Indicates the y coordinate of the mouse or user input device position, in pixels.	DisplayObject
		name : String Indicates the instance name of the DisplayObject.	DisplayObject
		opaqueBackground : Object Specifies whether the display object is opaque with a certain background color.	DisplayObject
		overState : DisplayObject Specifies a display object that is used as the visual object for the button over state — the state that the button is in when the pointer is positioned over the button.	SimpleButton
		parent : DisplayObjectContainer [read-only] Indicates the DisplayObjectContainer object that contains this display object.	DisplayObject
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object
		root : 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
		rotation : Number Indicates the rotation of the DisplayObject instance, in degrees, from its original orientation.	DisplayObject
		rotationX : Number Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container.	DisplayObject
		rotationY : Number Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container.	DisplayObject
		rotationZ : Number Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container.	DisplayObject
		scale9Grid : Rectangle The current scaling grid that is in effect.	DisplayObject
		scaleX : Number Indicates the horizontal scale (percentage) of the object as applied from the registration point.	DisplayObject
		scaleY : Number Indicates the vertical scale (percentage) of an object as applied from the registration point of the object.	DisplayObject
		scaleZ : Number Indicates the depth scale (percentage) of an object as applied from the registration point of the object.	DisplayObject
		scrollRect : Rectangle The scroll rectangle bounds of the display object.	DisplayObject
		soundTransform : flash.media:SoundTransform The SoundTransform object assigned to this button.	SimpleButton
		stage : Stage [read-only] The Stage of the display object.	DisplayObject
		tabEnabled : Boolean Specifies whether this object is in the tab order.	InteractiveObject
		tabIndex : int Specifies the tab ordering of objects in a SWF file.	InteractiveObject
		trackAsMenu : Boolean Indicates whether other display objects that are SimpleButton or MovieClip objects can receive user input release events.	SimpleButton
		transform : flash.geom:Transform An object with properties pertaining to a display object's matrix, color transform, and pixel bounds.	DisplayObject
		upState : DisplayObject Specifies a display object that is used as the visual object for the button up state — the state that the button is in when the pointer is not positioned over the button.	SimpleButton
		useHandCursor : Boolean A Boolean value that, when set to true, indicates whether the hand cursor is shown when the pointer rolls over a button.	SimpleButton
		visible : Boolean Whether or not the display object is visible.	DisplayObject
		width : Number Indicates the width of the display object, in pixels.	DisplayObject
		x : Number Indicates the x coordinate of the DisplayObject instance relative to the local coordinates of the parent DisplayObjectContainer.	DisplayObject
		y : Number Indicates the y coordinate of the DisplayObject instance relative to the local coordinates of the parent DisplayObjectContainer.	DisplayObject
		z : Number Indicates the z coordinate position along the z-axis of the DisplayObject instance relative to the 3D parent container.	DisplayObject

Public Methods

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	Method		Defined By
		ButtonAsset() Constructor.	ButtonAsset
		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
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		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
		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
		globalToLocal(point:Point):Point Converts the point object from the Stage (global) coordinates to the display object's (local) coordinates.	DisplayObject
		globalToLocal3D(point:Point):Vector3D Converts a two-dimensional point from the Stage (global) coordinates to a three-dimensional display object's (local) coordinates.	DisplayObject
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		hitTestObject(obj:DisplayObject):Boolean Evaluates the bounding box of the display object to see if it overlaps or intersects with the bounding box of the obj display object.	DisplayObject
		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
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		local3DToGlobal(point3d:Vector3D):Point Converts a three-dimensional point of the three-dimensional display object's (local) coordinates to a two-dimensional point in the Stage (global) coordinates.	DisplayObject
		localToGlobal(point:Point):Point Converts the point object from the display object's (local) coordinates to the Stage (global) coordinates.	DisplayObject
		move(x:Number, y:Number):void Moves this object to the specified x and y coordinates.	ButtonAsset
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		setActualSize(newWidth:Number, newHeight:Number):void Sets the actual size of this object.	ButtonAsset
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String [override] Returns a string indicating the location of this object within the hierarchy of DisplayObjects in the Application.	FlexSimpleButton
		valueOf():Object Returns the primitive value of the specified object.	Object
		willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.	EventDispatcher

Events

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	Summary	Defined By
activate	[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.	EventDispatcher
added	Dispatched when a display object is added to the display list.	DisplayObject
addedToStage	Dispatched 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
clear	Dispatched when the user selects 'Clear' (or 'Delete') from the text context menu.	InteractiveObject
click	Dispatched when a user presses and releases the main button of the user's pointing device over the same InteractiveObject.	InteractiveObject
contextMenu	Dispatched when a user gesture triggers the context menu associated with this interactive object in an AIR application.	InteractiveObject
copy	Dispatched when the user activates the platform specific accelerator key combination for a copy operation or selects 'Copy' from the text context menu.	InteractiveObject
cut	Dispatched when the user activates the platform specific accelerator key combination for a cut operation or selects 'Cut' from the text context menu.	InteractiveObject
deactivate	[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.	EventDispatcher
doubleClick	Dispatched 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
enterFrame	[broadcast event] Dispatched when the playhead is entering a new frame.	DisplayObject
exitFrame	[broadcast event] Dispatched when the playhead is exiting the current frame.	DisplayObject
focusIn	Dispatched after a display object gains focus.	InteractiveObject
focusOut	Dispatched after a display object loses focus.	InteractiveObject
frameConstructed	[broadcast event] Dispatched after the constructors of frame display objects have run but before frame scripts have run.	DisplayObject
gesturePan	Dispatched when the user moves a point of contact over the InteractiveObject instance on a touch-enabled device (such as moving a fingers from left to right over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject
gesturePressAndTap	Dispatched when the user creates a point of contact with an InteractiveObject instance, then taps on a touch-enabled device (such as placing several fingers over a display object to open a menu and then taps one finger to select a menu item on a mobile phone or tablet with a touch screen).	InteractiveObject
gestureRotate	Dispatched when the user performs a rotation gesture at a point of contact with an InteractiveObject instance (such as touching two fingers and rotating them over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject
gestureSwipe	Dispatched when the user performs a swipe gesture at a point of contact with an InteractiveObject instance (such as touching three fingers to a screen and then moving them in parallel over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject
gestureTwoFingerTap	Dispatched when the user presses two points of contact over the same InteractiveObject instance on a touch-enabled device (such as presses and releases two fingers over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject
gestureZoom	Dispatched when the user performs a zoom gesture at a point of contact with an InteractiveObject instance (such as touching two fingers to a screen and then quickly spreading the fingers apart over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject
imeStartComposition	This event is dispatched to any client app that supports inline input with an IME	InteractiveObject
keyDown	Dispatched when the user presses a key.	InteractiveObject
keyFocusChange	Dispatched when the user attempts to change focus by using keyboard navigation.	InteractiveObject
keyUp	Dispatched when the user releases a key.	InteractiveObject
middleClick	Dispatched when a user presses and releases the middle button of the user's pointing device over the same InteractiveObject.	InteractiveObject
middleMouseDown	Dispatched when a user presses the middle pointing device button over an InteractiveObject instance.	InteractiveObject
middleMouseUp	Dispatched when a user releases the pointing device button over an InteractiveObject instance.	InteractiveObject
mouseDown	Dispatched when a user presses the pointing device button over an InteractiveObject instance.	InteractiveObject
mouseFocusChange	Dispatched when the user attempts to change focus by using a pointer device.	InteractiveObject
mouseMove	Dispatched when a user moves the pointing device while it is over an InteractiveObject.	InteractiveObject
mouseOut	Dispatched when the user moves a pointing device away from an InteractiveObject instance.	InteractiveObject
mouseOver	Dispatched when the user moves a pointing device over an InteractiveObject instance.	InteractiveObject
mouseUp	Dispatched when a user releases the pointing device button over an InteractiveObject instance.	InteractiveObject
mouseWheel	Dispatched when a mouse wheel is spun over an InteractiveObject instance.	InteractiveObject
nativeDragComplete	Dispatched by the drag initiator InteractiveObject when the user releases the drag gesture.	InteractiveObject
nativeDragDrop	Dispatched 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
nativeDragEnter	Dispatched by an InteractiveObject when a drag gesture enters its boundary.	InteractiveObject
nativeDragExit	Dispatched by an InteractiveObject when a drag gesture leaves its boundary.	InteractiveObject
nativeDragOver	Dispatched by an InteractiveObject continually while a drag gesture remains within its boundary.	InteractiveObject
nativeDragStart	Dispatched at the beginning of a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.	InteractiveObject
nativeDragUpdate	Dispatched during a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.	InteractiveObject
paste	Dispatched when the user activates the platform specific accelerator key combination for a paste operation or selects 'Paste' from the text context menu.	InteractiveObject
removed	Dispatched when a display object is about to be removed from the display list.	DisplayObject
removedFromStage	Dispatched 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
render	[broadcast event] Dispatched when the display list is about to be updated and rendered.	DisplayObject
rightClick	Dispatched when a user presses and releases the right button of the user's pointing device over the same InteractiveObject.	InteractiveObject
rightMouseDown	Dispatched when a user presses the pointing device button over an InteractiveObject instance.	InteractiveObject
rightMouseUp	Dispatched when a user releases the pointing device button over an InteractiveObject instance.	InteractiveObject
rollOut	Dispatched when the user moves a pointing device away from an InteractiveObject instance.	InteractiveObject
rollOver	Dispatched when the user moves a pointing device over an InteractiveObject instance.	InteractiveObject
selectAll	Dispatched when the user activates the platform specific accelerator key combination for a select all operation or selects 'Select All' from the text context menu.	InteractiveObject
tabChildrenChange	Dispatched when the value of the object's tabChildren flag changes.	InteractiveObject
tabEnabledChange	Dispatched when the object's tabEnabled flag changes.	InteractiveObject
tabIndexChange	Dispatched when the value of the object's tabIndex property changes.	InteractiveObject
textInput	Dispatched when a user enters one or more characters of text.	InteractiveObject
touchBegin	Dispatched when the user first contacts a touch-enabled device (such as touches a finger to a mobile phone or tablet with a touch screen).	InteractiveObject
touchEnd	Dispatched when the user removes contact with a touch-enabled device (such as lifts a finger off a mobile phone or tablet with a touch screen).	InteractiveObject
touchMove	Dispatched when the user moves the point of contact with a touch-enabled device (such as drags a finger across a mobile phone or tablet with a touch screen).	InteractiveObject
touchOut	Dispatched when the user moves the point of contact away from InteractiveObject instance on a touch-enabled device (such as drags a finger from one display object to another on a mobile phone or tablet with a touch screen).	InteractiveObject
touchOver	Dispatched when the user moves the point of contact over an InteractiveObject instance on a touch-enabled device (such as drags a finger from a point outside a display object to a point over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject
touchRollOut	Dispatched when the user moves the point of contact away from an InteractiveObject instance on a touch-enabled device (such as drags a finger from over a display object to a point outisde the display object on a mobile phone or tablet with a touch screen).	InteractiveObject
touchRollOver	Dispatched when the user moves the point of contact over an InteractiveObject instance on a touch-enabled device (such as drags a finger from a point outside a display object to a point over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject
touchTap	Dispatched when the user lifts the point of contact over the same InteractiveObject instance on which the contact was initiated on a touch-enabled device (such as presses and releases a finger from a single point over a display object on a mobile phone or tablet with a touch screen).	InteractiveObject

Property Detail

measuredHeight

property

measuredHeight:Number [read-only]

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The measured height of this object.

This is typically hard-coded for graphical skins because this number is simply the number of pixels in the graphic. For code skins, it can also be hard-coded if you expect to be drawn at a certain size. If your size can change based on properties, you may want to also be an ILayoutManagerClient so a measure() method will be called at an appropriate time, giving you an opportunity to compute a measuredHeight.

Implementation
public function get measuredHeight():Number

measuredWidth

property

measuredWidth:Number [read-only]

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The measured width of this object.

Implementation
public function get measuredWidth():Number

Constructor Detail

ButtonAsset

()

Constructor

public function ButtonAsset()

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Constructor.

Method Detail

move

()

method

public function move(x:Number, y:Number):void

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Moves this object to the specified x and y coordinates.

Parameters

	`x:Number` — The new x-position for this object.

	`y:Number` — The new y-position for this object.

setActualSize

()

method

public function setActualSize(newWidth:Number, newHeight:Number):void

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Sets the actual size of this object.

This method is mainly for use in implementing the updateDisplayList() method, which is where you compute this object's actual size based on its explicit size, parent-relative (percent) size, and measured size. You then apply this actual size to the object by calling setActualSize().

In other situations, you should be setting properties such as width, height, percentWidth, or percentHeight rather than calling this method.

Parameters

	`newWidth:Number` — The new width for this object.

	`newHeight:Number` — The new height for this object.