| Package | spark.components.supportClasses |
| Class | public class TrackBase |
| Inheritance | TrackBase  Range SkinnableComponent UIComponent FlexSprite flash.display.Sprite |
| Subclasses | ScrollBarBase, SliderBase |
| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
thumb and
track.
The TrackBase class also provides the code for
dragging the thumb button, which is shared by the Slider and ScrollBar classes.
MXML Syntax
Hide MXML SyntaxThe <s:TrackBase> tag inherits all of the tag
attributes of its superclass and adds the following tag attributes:
Show MXML Syntax
<s:TrackBase
Styles
slideDuration="300"
Events
change="No default"
changing="No default"
thumbDrag="No default"
thumbPress="No default"
thumbRelease="No default"
/>
See also
| Method | Defined By | ||
|---|---|---|---|
Constructor. | TrackBase | ||
 | addStyleClient(styleClient:IAdvancedStyleClient):void
Adds a non-visual style client to this component instance. | UIComponent | |
| callLater(method:Function, args:Array = null):void
Queues a function to be called later. | UIComponent | |
| changeValueByStep(increase:Boolean = true):void
Increases or decreases value by stepSize. | Range | |
| clearStyle(styleProp:String):void
Deletes a style property from this component instance. | UIComponent | |
| contentToGlobal(point:Point):Point
Converts a Point object from content coordinates to global coordinates. | UIComponent | |
| contentToLocal(point:Point):Point
Converts a Point object from content to local coordinates. | UIComponent | |
| createAutomationIDPart(child:IAutomationObject):Object
Returns a set of properties that identify the child within
this container. | UIComponent | |
| createAutomationIDPartWithRequiredProperties(child:IAutomationObject, properties:Array):Object
Returns a set of properties as automation IDs that identify the child within
this container. | UIComponent | |
| createReferenceOnParentDocument(parentDocument:IFlexDisplayObject):void
Creates an id reference to this IUIComponent object
on its parent document object. | UIComponent | |
| deleteReferenceOnParentDocument(parentDocument:IFlexDisplayObject):void
Deletes the id reference to this IUIComponent object
on its parent document object. | UIComponent | |
|
Returns a UITextFormat object corresponding to the text styles
for this UIComponent. | UIComponent | |
| dispatchEvent(event:Event):Boolean [override]
Dispatches an event into the event flow. | UIComponent | |
| drawFocus(isFocused:Boolean):void
Shows or hides the focus indicator around this component. | UIComponent | |
| drawRoundRect(x:Number, y:Number, w:Number, h:Number, r:Object = null, c:Object = null, alpha:Object = null, rot:Object = null, gradient:String = null, ratios:Array = null, hole:Object = null):void
Programmatically draws a rectangle into this skin's Graphics object. | UIComponent | |
| effectFinished(effectInst:IEffectInstance):void
Called by the effect instance when it stops playing on the component. | UIComponent | |
| effectStarted(effectInst:IEffectInstance):void
Called by the effect instance when it starts playing on the component. | UIComponent | |
| endEffectsStarted():void
Ends all currently playing effects on the component. | UIComponent | |
| executeBindings(recurse:Boolean = false):void
Executes all the bindings for which the UIComponent object is the destination. | UIComponent | |
| finishPrint(obj:Object, target:IFlexDisplayObject):void
Called after printing is complete. | UIComponent | |
| generateMXMLArray(document:Object, data:Array, recursive:Boolean = true):Array | UIComponent | |
| generateMXMLVector(document:Object, data:Array, recursive:Boolean = true):* | UIComponent | |
| getAutomationChildAt(index:int):IAutomationObject
Provides the automation object at the specified index. | UIComponent | |
| getAutomationChildren():Array
Provides the automation object list . | UIComponent | |
| getBoundsXAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number
Returns the x coordinate of the element's bounds at the specified element size. | UIComponent | |
| getBoundsYAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number
Returns the y coordinate of the element's bounds at the specified element size. | UIComponent | |
| getClassStyleDeclarations():Array
Finds the type selectors for this UIComponent instance. | UIComponent | |
| getConstraintValue(constraintName:String):*
Returns a layout constraint value, which is the same as
getting the constraint style for this component. | UIComponent | |
| getExplicitOrMeasuredHeight():Number
A convenience method for determining whether to use the
explicit or measured height
| UIComponent | |
| getExplicitOrMeasuredWidth():Number
A convenience method for determining whether to use the
explicit or measured width
| UIComponent | |
| getFocus():InteractiveObject
Gets the object that currently has focus. | UIComponent | |
| getLayoutBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's layout height. | UIComponent | |
| getLayoutBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's layout width. | UIComponent | |
| getLayoutBoundsX(postLayoutTransform:Boolean = true):Number
Returns the x coordinate that the element uses to draw on screen. | UIComponent | |
| getLayoutBoundsY(postLayoutTransform:Boolean = true):Number
Returns the y coordinate that the element uses to draw on screen. | UIComponent | |
| getLayoutMatrix():Matrix
Returns the transform matrix that is used to calculate the component's
layout relative to its siblings. | UIComponent | |
| getLayoutMatrix3D():Matrix3D
Returns the layout transform Matrix3D for this element. | UIComponent | |
| getMaxBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's maximum height. | UIComponent | |
| getMaxBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's maximum width. | UIComponent | |
| getMinBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's minimum height. | UIComponent | |
| getMinBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's minimum width. | UIComponent | |
| getPreferredBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's preferred height. | UIComponent | |
| getPreferredBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's preferred width. | UIComponent | |
| getRepeaterItem(whichRepeater:int = -1):Object
Returns the item in the dataProvider that was used
by the specified Repeater to produce this Repeater, or
null if this Repeater isn't repeated. | UIComponent | |
| getStyle(styleProp:String):*
Gets a style property that has been set anywhere in this
component's style lookup chain. | UIComponent | |
| getVisibleRect(targetParent:DisplayObject = null):Rectangle
Get the bounds of this object that are visible to the user
on the screen. | UIComponent | |
| globalToContent(point:Point):Point
Converts a Point object from global to content coordinates. | UIComponent | |
| hasCSSState():Boolean
Returns true if currentCSSState is not null. | UIComponent | |
| hasState(stateName:String):Boolean
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
| horizontalGradientMatrix(x:Number, y:Number, width:Number, height:Number):Matrix
Returns a box Matrix which can be passed to the
drawRoundRect() method
as the rot parameter when drawing a horizontal gradient. | UIComponent | |
| initialize():void
Initializes the internal structure of this component. | UIComponent | |
| initializeRepeaterArrays(parent:IRepeaterClient):void
Initializes various properties which keep track of repeated instances
of this component. | UIComponent | |
| invalidateDisplayList():void
Marks a component so that its updateDisplayList()
method gets called during a later screen update. | UIComponent | |
| invalidateLayering():void
Called by a component's items to indicate that their depth
property has changed. | UIComponent | |
| invalidateLayoutDirection():void
An element must call this method when its layoutDirection changes or
when its parent's layoutDirection changes. | UIComponent | |
| invalidateProperties():void
Marks a component so that its commitProperties()
method gets called during a later screen update. | UIComponent | |
| invalidateSize():void
Marks a component so that its measure()
method gets called during a later screen update. | UIComponent | |
| invalidateSkinState():void
Marks the component so that the new state of the skin is set
during a later screen update. | SkinnableComponent | |
| localToContent(point:Point):Point
Converts a Point object from local to content coordinates. | UIComponent | |
| matchesCSSState(cssState:String):Boolean
Returns true if cssState matches currentCSSState. | UIComponent | |
| matchesCSSType(cssType:String):Boolean
Determines whether this instance is the same as, or is a subclass of,
the given type. | UIComponent | |
| measureHTMLText(htmlText:String):TextLineMetrics
Measures the specified HTML text, which can contain HTML tags such
as <font> and <b>,
assuming that it is displayed
in a single-line UITextField using a UITextFormat
determined by the styles of this UIComponent. | UIComponent | |
| measureText(text:String):TextLineMetrics
Measures the specified text, assuming that it is displayed
in a single-line UITextField (or UIFTETextField) using a UITextFormat
determined by the styles of this UIComponent. | UIComponent | |
| move(x:Number, y:Number):void
Moves the component to a specified position within its parent. | UIComponent | |
| notifyStyleChangeInChildren(styleProp:String, recursive:Boolean):void
Propagates style changes to the children. | UIComponent | |
| owns(child:DisplayObject):Boolean
Returns true if the chain of owner properties
points from child to this UIComponent. | UIComponent | |
| parentChanged(p:DisplayObjectContainer):void
Called by Flex when a UIComponent object is added to or removed from a parent. | UIComponent | |
| prepareToPrint(target:IFlexDisplayObject):Object
Prepares an IFlexDisplayObject for printing. | UIComponent | |
| regenerateStyleCache(recursive:Boolean):void
Builds or rebuilds the CSS style cache for this component
and, if the recursive parameter is true,
for all descendants of this component as well. | UIComponent | |
| registerEffects(effects:Array):void
For each effect event, registers the EffectManager
as one of the event listeners. | UIComponent | |
| removeStyleClient(styleClient:IAdvancedStyleClient):void
Removes a non-visual style client from this component instance. | UIComponent | |
| replayAutomatableEvent(event:Event):Boolean
Replays the specified event. | UIComponent | |
| resolveAutomationIDPart(criteria:Object):Array
Resolves a child by using the id provided. | UIComponent | |
| resumeBackgroundProcessing():void [static]
Resumes the background processing of methods
queued by callLater(), after a call to
suspendBackgroundProcessing(). | UIComponent | |
| setActualSize(w:Number, h:Number):void
Sizes the object. | UIComponent | |
| setConstraintValue(constraintName:String, value:*):void
Sets a layout constraint value, which is the same as
setting the constraint style for this component. | UIComponent | |
| setCurrentState(stateName:String, playTransition:Boolean = true):void
Set the current state. | UIComponent | |
| setFocus():void
Sets the focus to this component. | UIComponent | |
| setLayoutBoundsPosition(x:Number, y:Number, postLayoutTransform:Boolean = true):void
Sets the coordinates that the element uses to draw on screen. | UIComponent | |
| setLayoutBoundsSize(width:Number, height:Number, postLayoutTransform:Boolean = true):void
Sets the layout size of the element. | UIComponent | |
| setLayoutMatrix(value:Matrix, invalidateLayout:Boolean):void
Sets the transform Matrix that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
| setLayoutMatrix3D(value:Matrix3D, invalidateLayout:Boolean):void
Sets the transform Matrix3D that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
| setMXMLDescriptor(value:Array):void | UIComponent | |
| setMXMLProperties(value:Array):void | UIComponent | |
| setStyle(styleProp:String, newValue:*):void
Sets a style property on this component instance. | UIComponent | |
| setVisible(value:Boolean, noEvent:Boolean = false):void
Called when the visible property changes. | UIComponent | |
| styleChanged(styleProp:String):void
Detects changes to style properties. | UIComponent | |
| stylesInitialized():void
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| suspendBackgroundProcessing():void [static]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
| toString():String [override]
Returns a string indicating the location of this object
within the hierarchy of DisplayObjects in the Application. | FlexSprite | |
| transformAround(transformCenter:Vector3D, scale:Vector3D = null, rotation:Vector3D = null, translation:Vector3D = null, postLayoutScale:Vector3D = null, postLayoutRotation:Vector3D = null, postLayoutTranslation:Vector3D = null, invalidateLayout:Boolean = true):void
A utility method to update the rotation, scale, and translation of the
transform while keeping a particular point, specified in the component's
own coordinate space, fixed in the parent's coordinate space. | UIComponent | |
| transformPointToParent(localPosition:Vector3D, position:Vector3D, postLayoutPosition:Vector3D):void
A utility method to transform a point specified in the local
coordinates of this object to its location in the object's parent's
coordinates. | UIComponent | |
| validateDisplayList():void
Validates the position and size of children and draws other
visuals. | UIComponent | |
| validateNow():void
Validate and update the properties and layout of this object
and redraw it, if necessary. | UIComponent | |
| validateProperties():void
Used by layout logic to validate the properties of a component
by calling the commitProperties() method. | UIComponent | |
| validateSize(recursive:Boolean = false):void
Validates the measured size of the component
If the LayoutManager.invalidateSize() method is called with
this ILayoutManagerClient, then the validateSize() method
is called when it's time to do measurements. | UIComponent | |
| validationResultHandler(event:ValidationResultEvent):void
Handles both the valid and invalid events from a
validator assigned to this component. | UIComponent | |
| verticalGradientMatrix(x:Number, y:Number, width:Number, height:Number):Matrix
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
| Method | Defined By | ||
|---|---|---|---|
| addMXMLChildren(comps:Array):void | UIComponent | |
| adjustFocusRect(obj:DisplayObject = null):void
Adjust the focus rectangle. | UIComponent | |
| applyComputedMatrix():void
Commits the computed matrix built from the combination of the layout
matrix and the transform offsets to the flash displayObject's transform. | UIComponent | |
| attachOverlay():void
This is an internal method used by the Flex framework
to support the Dissolve effect. | UIComponent | |
| attachSkin():void
Create the skin for the component. | SkinnableComponent | |
| canSkipMeasurement():Boolean
Determines if the call to the measure() method can be skipped. | UIComponent | |
| childrenCreated():void
Performs any final processing after child objects are created. | UIComponent | |
| clearSkinParts():void
Clear out references to skin parts. | SkinnableComponent | |
| commitProperties():void
Processes the properties set on the component. | UIComponent | |
| createChildren():void
Create child objects of the component. | UIComponent | |
| createDynamicPartInstance(partName:String):Object
Create an instance of a dynamic skin part. | SkinnableComponent | |
| createInFontContext(classObj:Class):Object
Creates a new object using a context
based on the embedded font being used. | UIComponent | |
| createInModuleContext(moduleFactory:IFlexModuleFactory, className:String):Object
Creates the object using a given moduleFactory. | UIComponent | |
| detachSkin():void
Destroys and removes the skin for this component. | SkinnableComponent | |
| dispatchPropertyChangeEvent(prop:String, oldValue:*, value:*):void
Helper method for dispatching a PropertyChangeEvent
when a property is updated. | UIComponent | |
| findSkinParts():void
Find the skin parts in the skin class and assign them to the properties of the component. | SkinnableComponent | |
| focusInHandler(event:FocusEvent):void
The event handler called when a UIComponent object gets focus. | UIComponent | |
| focusOutHandler(event:FocusEvent):void
The event handler called when a UIComponent object loses focus. | UIComponent | |
| generateMXMLAttributes(data:Array):void | UIComponent | |
| generateMXMLInstances(document:Object, data:Array, recursive:Boolean = true):void | UIComponent | |
| generateMXMLObject(document:Object, data:Array):Object | UIComponent | |
| getCurrentSkinState():String
Returns the name of the state to be applied to the skin. | SkinnableComponent | |
| getDynamicPartAt(partName:String, index:int):Object
Returns a specific instance of a dynamic part. | SkinnableComponent | |
| initAdvancedLayoutFeatures():void
Initializes the implementation and storage of some of the less frequently
used advanced layout features of a component. | UIComponent | |
| initializationComplete():void
Finalizes the initialization of this component. | UIComponent | |
| initializeAccessibility():void
Initializes this component's accessibility code. | UIComponent | |
|
Helper method to invalidate parent size and display list if
this object affects its layout (includeInLayout is true). | UIComponent | |
| isOurFocus(target:DisplayObject):Boolean
Typically overridden by components containing UITextField objects,
where the UITextField object gets focus. | UIComponent | |
| keyDownHandler(event:KeyboardEvent):void
The event handler called for a keyDown event. | UIComponent | |
| keyUpHandler(event:KeyboardEvent):void
The event handler called for a keyUp event. | UIComponent | |
| measure():void
Calculates the default size, and optionally the default minimum size,
of the component. | UIComponent | |
| nearestValidValue(value:Number, interval:Number):Number
Returns the sum of the minimum with an integer multiple of interval that's
closest to value, unless value is closer to the maximum limit,
in which case the maximum is returned. | Range | |
| numDynamicParts(partName:String):int
Returns the number of instances of a dynamic part. | SkinnableComponent | |
| partAdded(partName:String, instance:Object):void
Called when a skin part is added. | SkinnableComponent | |
| partRemoved(partName:String, instance:Object):void
Called when an instance of a skin part is being removed. | SkinnableComponent | |
pointToValue(x:Number, y:Number):Number
Converts a track-relative x,y pixel location into a value between
the minimum and maximum, inclusive. | TrackBase | ||
| removeDynamicPartInstance(partName:String, instance:Object):void
Remove an instance of a dynamic part. | SkinnableComponent | |
| resourcesChanged():void
This method is called when a UIComponent is constructed,
and again whenever the ResourceManager dispatches
a "change" Event to indicate
that the localized resources have changed in some way. | UIComponent | |
| setStretchXY(stretchX:Number, stretchY:Number):void
Specifies a transform stretch factor in the horizontal and vertical direction. | UIComponent | |
| setValue(value:Number):void
Sets the backing store for the value property and
dispatches a valueCommit event if the property changes. | Range | |
| stateChanged(oldState:String, newState:String, recursive:Boolean):void
This method is called when a state changes to check whether
state-specific styles apply to this component. | UIComponent | |
| updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
Draws the object and/or sizes and positions its children. | UIComponent | |
updateSkinDisplayList():void
Sets the bounds of skin parts, typically the thumb, whose geometry isn't fully
specified by the skin's layout. | TrackBase | ||
| Event | Summary | Defined By | ||
|---|---|---|---|---|
| Dispatched when the component is added to a container as a content child by using the addChild(), addChildAt(), addElement(), or addElementAt() method. | UIComponent | ||
| Dispatched when the value of the control changes as a result of user interaction. | TrackBase | |||
| Dispatched at the end of a user interaction or when an animation ends. | TrackBase | |||
| Dispatched at the start of a user interaction or when an animation starts. | TrackBase | |||
| Dispatched when the component has finished its construction, property processing, measuring, layout, and drawing. | UIComponent | ||
| Dispatched after the view state has changed. | UIComponent | ||
| Dispatched after the currentState property changes, but before the view state changes. | UIComponent | ||
| Dispatched by the drag initiator (the component that is the source of the data being dragged) when the drag operation completes, either when you drop the dragged data onto a drop target or when you end the drag-and-drop operation without performing a drop. | UIComponent | ||
| Dispatched by the drop target when the user releases the mouse over it. | UIComponent | ||
| Dispatched by a component when the user moves the mouse over the component during a drag operation. | UIComponent | ||
| Dispatched by the component when the user drags outside the component, but does not drop the data onto the target. | UIComponent | ||
| Dispatched by a component when the user moves the mouse while over the component during a drag operation. | UIComponent | ||
| Dispatched by the drag initiator when starting a drag operation. | UIComponent | ||
| Dispatched after an effect ends. | UIComponent | ||
| Dispatched just before an effect starts. | UIComponent | ||
| Dispatched after an effect is stopped, which happens only by a call to stop() on the effect. | UIComponent | ||
| Dispatched after the component has entered a view state. | UIComponent | ||
| Dispatched just before the component exits a view state. | UIComponent | ||
| Dispatched when an object's state changes from visible to invisible. | UIComponent | ||
| Dispatched when the component has finished its construction and has all initialization properties set. | UIComponent | ||
| Dispatched when a component is monitored by a Validator and the validation failed. | UIComponent | ||
| Dispatched from a component opened using the PopUpManager when the user clicks outside it. | UIComponent | ||
| Dispatched from a component opened using the PopUpManager when the user scrolls the mouse wheel outside it. | UIComponent | ||
| Dispatched when the object has moved. | UIComponent | ||
| Dispatched at the beginning of the component initialization sequence. | UIComponent | ||
| Dispatched when the component is removed from a container as a content child by using the removeChild(), removeChildAt(), removeElement(), or removeElementAt() method. | UIComponent | ||
| Dispatched when the component is resized. | UIComponent | ||
| Dispatched when an object's state changes from invisible to visible. | UIComponent | ||
| Dispatched after the component has entered a new state and any state transition animation to that state has finished playing. | UIComponent | ||
| Dispatched when a component interrupts a transition to its current state in order to switch to a new state. | UIComponent | ||
| Dispatched when the thumb is pressed and then moved by the mouse. | TrackBase | |||
| Dispatched when the thumb is pressed, meaning the user presses the mouse button over the thumb. | TrackBase | |||
| Dispatched when the thumb is released, meaning the user releases the mouse button after a thumbPress event. | TrackBase | |||
| Dispatched by the component when it is time to create a ToolTip. | UIComponent | ||
| Dispatched by the component when its ToolTip has been hidden and is to be discarded soon. | UIComponent | ||
| Dispatched by the component when its ToolTip is about to be hidden. | UIComponent | ||
| Dispatched by the component when its ToolTip is about to be shown. | UIComponent | ||
| Dispatched by the component when its ToolTip has been shown. | UIComponent | ||
| Dispatched by a component whose toolTip property is set, as soon as the user moves the mouse over it. | UIComponent | ||
| A non-cancellable event, dispatched by a component when it is done responding to a touch interaction user gesture. | UIComponent | ||
| A non-cancellable event, dispatched by a component when it starts responding to a touch interaction user gesture. | UIComponent | ||
| A cancellable event, dispatched by a component in an attempt to respond to a touch interaction user gesture. | UIComponent | ||
| Dispatched when an object has had its commitProperties(), measure(), and updateDisplayList() methods called (if needed). | UIComponent | ||
| Dispatched when a component is monitored by a Validator and the validation succeeded. | UIComponent | ||
| Dispatched when values are changed programmatically or by user interaction. | UIComponent | ||
| Style | Description | Defined By | ||
|---|---|---|---|---|
| Type: String CSS Inheritance: no The vertical distance in pixels from the top edge of the content area to the control's baseline position. | UIComponent | ||
| Type: String CSS Inheritance: no The vertical distance, in pixels, from the bottom edge of the component to the bottom edge of its parent container's content area. | UIComponent | ||
| Type: uint Format: Color CSS Inheritance: yes Theme: spark, mobile The main color for a component. | SkinnableComponent | ||
| Type: uint Format: Color CSS Inheritance: yes Color of the component highlight when validation fails. | UIComponent | ||
| Type: Class Name of the skin class to use for this component when a validation error occurs. | SkinnableComponent | ||
| Type: String CSS Inheritance: no Blend mode used by the focus rectangle. | UIComponent | ||
| Type: Class CSS Inheritance: no Skin used to draw the focus rectangle. | UIComponent | ||
| Type: Number Format: Length CSS Inheritance: no Thickness, in pixels, of the focus rectangle outline. | UIComponent | ||
| Type: String CSS Inheritance: no The horizontal distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
| Type: String CSS Inheritance: yes The primary interaction mode for this component. See also | UIComponent | ||
| Type: String CSS Inheritance: yes Specifies the desired layout direction of a component. See also | UIComponent | ||
| Type: String CSS Inheritance: no The horizontal distance, in pixels, from the left edge of the component to the left edge of its parent container's content area. | UIComponent | ||
| Type: String CSS Inheritance: no The horizontal distance, in pixels, from the right edge of the component to the right edge of its parent container's content area. | UIComponent | ||
| Type: Boolean CSS Inheritance: yes Show the error border or skin when this component is invalid. | UIComponent | ||
| Type: Boolean CSS Inheritance: yes Show the error tip when this component is invalid and the user rolls over it. | UIComponent | ||
| Type: Class Name of the skin class to use for this component. | SkinnableComponent | ||
slideDuration | Type: Number Format: Time CSS Inheritance: no Duration in milliseconds for a sliding animation when you click on the track to move a thumb. This style is used for both Sliders and Scrollbars. For Sliders, any click on the track will cause an animation using this style, as the thumb will move to the clicked position. For ScrollBars, this style is used only when shift-clicking on the track, which causes the thumb to move to the clicked position. Clicking on a ScrollBar track when the shift key is not pressed will result in paging behavior instead. The smoothScrolling style must also be set on the
ScrollBar to get animated behavior when shift-clicking.
This duration is for an animation that covers the entire distance of the track; smaller distances will use a proportionally smaller duration. The default value is 300. | TrackBase | ||
| Type: String CSS Inheritance: no The vertical distance, in pixels, from the top edge of the component to the top edge of its parent container's content area. | UIComponent | ||
| Type: String CSS Inheritance: no The vertical distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
This component uses skins made up of skin parts. Do not set the skin parts directly. The component's skin sets the skin parts.
| Skin Part | Description | Defined By | ||
|---|---|---|---|---|
thumb:Button | Required: false Part Type: Static A skin part that defines a button that can be dragged along the track to increase or decrease the value property. Updates to the value property automatically update the position of the thumb button with respect to the track. | TrackBase | ||
track:Button | Required: false Part Type: Static A skin part that defines a button that, when pressed, sets the value property to the value corresponding with the current button position on the track. | TrackBase | ||
To skin the component, implement a skin that defines the following states. Although you must implement all skin states, a skin state can be empty. An empty skin state specifies no changes to the default skin state.
| Skin State | Description | Defined By | ||
|---|---|---|---|---|
disabled | Disabled State | TrackBase | ||
normal | Normal State | TrackBase | ||
| TrackBase | () | Constructor |
public function TrackBase()| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Constructor.
| pointToValue | () | method |
protected function pointToValue(x:Number, y:Number):Number| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Converts a track-relative x,y pixel location into a value between the minimum and maximum, inclusive.
TrackBase subclasses must override this method and perform conversions that take their own geometry into account. For example, a vertical slider might compute a value like this:
return (y / track.height) (maximum - minimum);
By default, this method returns minimum.
Parameters
x:Number — The x coordinate of the location relative to the track's origin.
| |
y:Number — The y coordinate of the location relative to the track's origin.
|
Number — A value between the minimum and maximum, inclusive.
|
| updateSkinDisplayList | () | method |
protected function updateSkinDisplayList():void| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Sets the bounds of skin parts, typically the thumb, whose geometry isn't fully specified by the skin's layout.
Most subclasses override this method to update the thumb's size, position, and
visibility, based on the minimum, maximum, and value properties.
By default, this method does nothing.
| change | Event |
flash.events.Eventflash.events.Event.CHANGE| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Dispatched when the value of the control changes as a result of user interaction.
| changeEnd | Event |
mx.events.FlexEventmx.events.FlexEvent.CHANGE_END| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Dispatched at the end of a user interaction or when an animation ends.
TheFlexEvent.CHANGE_END constant defines the value of the
type property of the event object for a changeEnd event.
The properties of the event object have the following values:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
| changeStart | Event |
mx.events.FlexEventmx.events.FlexEvent.CHANGE_START| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Dispatched at the start of a user interaction or when an animation starts.
TheFlexEvent.CHANGE_START constant defines the value of the
type property of the event object for a changeStart event.
The properties of the event object have the following values:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
| thumbDrag | Event |
spark.events.TrackBaseEventspark.events.TrackBaseEvent.THUMB_DRAG| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Dispatched when the thumb is pressed and then moved by the mouse.
This event is always preceded by a thumbPress event.
TrackBaseEvent.THUMB_DRAG constant defines the value of the
type property of the event object for a thumbDrag event.
The properties of the event object have the following values:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
| thumbPress | Event |
spark.events.TrackBaseEventspark.events.TrackBaseEvent.THUMB_PRESS| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Dispatched when the thumb is pressed, meaning the user presses the mouse button over the thumb.
TheTrackBaseEvent.THUMB_PRESS constant defines the value of the
type property of the event object for a thumbPress event.
The properties of the event object have the following values:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
| thumbRelease | Event |
spark.events.TrackBaseEventspark.events.TrackBaseEvent.THUMB_RELEASE| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Dispatched when the thumb is released,
meaning the user releases the mouse button after
a thumbPress event.
TrackBaseEvent.THUMB_RELEASE constant defines the value of the
type property of the event object for a thumbRelease event.
The properties of the event object have the following values:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |