ImageElement

Package	org.osmf.elements
Class	public class ImageElement
Inheritance	ImageElement LoadableElementBase MediaElement EventDispatcher Object

Language Version:

ActionScript 3.0

Product Version:

OSMF 1.0

Runtime Versions:

Flash Player 10, AIR 1.5

ImageElement is a media element specifically created for presenting still images. It can load and present any PNG, GIF, or JPG image.

The basic steps for creating and using an ImageElement are:

Create a new URLResource pointing to the URL of image to be loaded.
Create the new ImageElement, passing the URLResource as a parameter.
Create a new MediaPlayer.
Assign the ImageElement to the MediaPlayer's media property.
Get the DisplayObject from the MediaPlayer's displayObject property, and add it to the display list. Note that the displayObject property may not be immediately available, in which case you can listen for the MediaPlayer's displayObjectChange event.
When done with the ImageElement, set the MediaPlayer's media property to null, and remove the DisplayObject from the display list.

View the examples

Related API Elements

org.osmf.elements.ImageLoader
org.osmf.media.MediaElement
org.osmf.media.MediaPlayer
org.osmf.media.URLResource

Public Properties

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	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		container : IMediaContainer [read-only] The media container that this element uses.	MediaElement
		metadataNamespaceURLs : Vector.<String> [read-only] A Vector containing the namespace URLs for all Metadata objects stored within this MediaElement.	MediaElement
		resource : MediaResourceBase The media resource that this media element operates on.	MediaElement
		smoothing : Boolean Specifies whether the image should be smoothed when it is scaled.	ImageElement
		traitTypes : Vector.<String> [read-only] A Vector of MediaTraitType values representing the trait types on this media element.	MediaElement

Protected Properties

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	Property		Defined By
		loader : LoaderBase The LoaderBase used by this element to load resources.	LoadableElementBase

Public Methods

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	Method		Defined By
		ImageElement(resource:URLResource = null, loader:ImageLoader = null) Constructor.	ImageElement
		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
		addMetadata(namespaceURL:String, metadata:Metadata):void Adds a Metadata object to this MediaElement under the specified namespace URL.	MediaElement
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		getMetadata(namespaceURL:String):Metadata Returns the Metadata object that is stored under this MediaElement with the specified namespace URL.	MediaElement
		getTrait(type:String):org.osmf.traits:MediaTraitBase Returns the media trait of the specified type.	MediaElement
		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
		hasTrait(type:String):Boolean Determines whether this media element has a media trait of the specified type.	MediaElement
		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
		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
		removeMetadata(namespaceURL:String):Metadata Removes the Metadata object that was stored under this MediaElement with the specified namespace URL.	MediaElement
		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 Returns the string representation of the specified object.	Object
		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

Protected Methods

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	Method		Defined By
		addTrait(type:String, instance:org.osmf.traits:MediaTraitBase):void Adds a new media trait to this media element.	MediaElement
		createLoadTrait(resource:MediaResourceBase, loader:LoaderBase):org.osmf.traits:LoadTrait Subclasses can override this method to return a custom LoadTrait subclass.	LoadableElementBase
		processLoadingState():void Subclasses can override this method to do processing when the media element enters the LOADING state.	LoadableElementBase
		processReadyState():void Subclasses can override this method to do processing when the media element enters the READY state.	LoadableElementBase
		processUnloadingState():void Subclasses can override this method to do processing when the media element enters the UNLOADING state.	LoadableElementBase
		removeTrait(type:String):org.osmf.traits:MediaTraitBase Removes a media trait from this media element.	MediaElement
		setupTraits():void Sets up the traits for this media element.	MediaElement

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
containerChange	Dispatched when the element's container property changed.	MediaElement
deactivate	[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.	EventDispatcher
mediaError	Dispatched when an error which impacts the operation of the media element occurs.	MediaElement
mediaInfo	Dispatched when a info which impacts the operation of the media element is available.	MediaElement
metadataAdd	Dispatched when a Metadata object has been added to this media element.	MediaElement
metadataRemove	Dispatched when a Metadata object has been removed from this media element.	MediaElement
traitAdd	Dispatched when a trait is added to the media element.	MediaElement
traitRemove	Dispatched when a trait is removed from the media element.	MediaElement

Property Detail

smoothing

property

smoothing:Boolean

Specifies whether the image should be smoothed when it is scaled. The default value is false.

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

Constructor Detail

()

Constructor

public function ImageElement(resource:URLResource = null, loader:ImageLoader = null)

Language Version:

ActionScript 3.0

Product Version:

OSMF 1.0

Runtime Versions:

Flash Player 10, AIR 1.5

Constructor.

Parameters

	`resource:URLResource` (default = `null`) — URLResource that points to the image source that the ImageElement will use.

	`loader:ImageLoader` (default = `null`) — ImageLoader used to load the image. If null, the ImageLoader will be created.

Examples How to use this example

ImageElementExample.as

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package
{
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    
    import org.osmf.elements.ImageElement;
    import org.osmf.elements.VideoElement;
    import org.osmf.media.MediaPlayer;
    import org.osmf.media.MediaPlayerSprite;
    import org.osmf.media.URLResource;
    
    public class ImageElementExample extends Sprite
    {
        public function ImageElementExample()
        {
            super();
            
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.TOP_LEFT;
            
            var mediaPlayerSprite:MediaPlayerSprite = new MediaPlayerSprite();
            var imageElement:ImageElement = new ImageElement();
            imageElement.resource = new URLResource("http://mediapm.edgesuite.net/strobe/content/test/train.jpg");
            
            addChild(mediaPlayerSprite);
            mediaPlayerSprite.media = imageElement;    
        }
    }
}

ImageElement - AS3 OSMF

Classes x

smoothing

ImageElement

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