Package | mx.controls |
Class | public class ButtonBar |
Inheritance | ButtonBar NavBar Box Container UIComponent FlexSprite flash.display.Sprite |
Implements | IFocusManagerComponent |
Subclasses | ToggleButtonBar |
A push button is one that does not remember its selected state
when selected.
The typical use for a push button in a button bar is for grouping
a set of related buttons together, which gives them a common look
and navigation, and handling the logic for the click
event
in a single place.
The ButtonBar control creates Button controls based on the value of
its dataProvider
property.
Even though ButtonBar is a subclass of Container, do not use methods such as
Container.addChild()
and Container.removeChild()
to add or remove Button controls.
Instead, use methods such as addItem()
and removeItem()
to manipulate the dataProvider
property.
The ButtonBar control automatically adds or removes the necessary children based on
changes to the dataProvider
property.
To control the styling of the buttons of the ButtonBar control, use the
buttonStyleName
, firstButtonStyleName
,
and lastButtonStyleName
style properties;
do not try to style the individual Button controls
that make up the ButtonBar control.
You can use the ToggleButtonBar control to define a group of toggle buttons.
ButtonBar control has the following default characteristics:
Characteristic | Description |
---|---|
Preferred size | Wide enough to contain all buttons with their label text and icons, if any, plus any padding and separators, and high enough to accommodate the button height. |
Control resizing rules | The controls do not resize by default. Specify percentage sizes if you want your ButtonBar to resize based on the size of its parent container. |
Padding | 0 pixels for the top, bottom, left, and right properties. |
The <mx:ButtonBar>
tag inherits all the tag attributes
of its superclass, and adds the following tag attributes:
<mx:ButtonBar Styles buttonHeight="undefined" buttonStyleName="Name of CSS style declaration, which specifies styles for the buttons" buttonWidth="undefined" firstButtonStyleName="The value ofbuttonStyleName
" focusAlpha="0.4" focusRoundedCorners="tl tr bl br" horizontalAlign="center|left|right" horizontalGap="0" lastButtonStyleName="The value ofbuttonStyleName
" verticalAlign="middle|top|bottom" verticalGap="0" Events itemClick="No default" > ... child tags ... </mx:ButtonBar>
Default MXML PropertydataProvider
See also
Method | Defined by | ||
---|---|---|---|
Constructor.
| ButtonBar | ||
addChild(child:DisplayObject):DisplayObject
Adds a child DisplayObject to this Container.
| Container | ||
addChildAt(child:DisplayObject, index:int):DisplayObject
Adds a child DisplayObject to this Container.
| Container | ||
callLater(method:Function, args:Array = null):void
Queues a function to be called later.
| UIComponent | ||
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. | Container | ||
contentToLocal(point:Point):Point
Converts a
Point object from content to local coordinates. | Container | ||
createAutomationIDPart(child:IAutomationObject):Object
Returns a set of properties that identify the child within
this container.
| UIComponent | ||
Given a single UIComponentDescriptor, create the corresponding
component and add the component as a child of this Container.
| Container | ||
createComponentsFromDescriptors(recurse:Boolean = true):void
Iterate through the Array of
childDescriptors ,
and call the createComponentFromDescriptor() method for each one. | Container | ||
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
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, width:Number, height:Number, cornerRadius:Object = null, color:Object = null, alpha:Object = null, gradientMatrix:Matrix = null, gradientType:String = "linear", gradientRatios:Array = null, hole:Object = null):void
Programatically 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 data bindings on this Container.
| Container | ||
executeChildBindings(recurse:Boolean):void
Executes the bindings into this Container's child UIComponent objects.
| Container | ||
finishPrint(obj:Object, target:IFlexDisplayObject):void
Called after printing is complete.
| UIComponent | ||
getAutomationChildAt(index:int):IAutomationObject
Provides the automation object at the specified index.
| UIComponent | ||
getChildAt(index:int):DisplayObject
Gets the nth child component object.
| Container | ||
getChildByName(name:String):DisplayObject
Returns the child whose
name property is the specified String. | Container | ||
getChildIndex(child:DisplayObject):int
Gets the zero-based index of a specific child.
| Container | ||
getChildren():Array
Returns an Array of DisplayObject objects consisting of the content children
of the container.
| Container | ||
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 | ||
getDescendantByName(name:String):DisplayObject
Searches all children for the first child named with the passed value; returns that child, or null if not found.
| UIComponent | ||
getDescendantsByName(name:String):Array
Searches all children for all children named with the passed value; returns an array with those children, or an empty array if none found.
| 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 | ||
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
MOVED OVER FROM SDK 3.2 UIComponent - Allows for popped-up alerts to be displayed correctly - NGR MOVED 11-20-08
| UIComponent | ||
globalToContent(point:Point):Point
Converts a
Point object from global to content coordinates. | Container | ||
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 | ||
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 | ||
itemToLabel(data:Object):String
Returns the string the renderer would display for the given data object
based on the labelField and labelFunction properties.
| NavBar | ||
localToContent(point:Point):Point
Converts a
Point object from local to content coordinates. | Container | ||
measureHTMLText(htmlText:String):TextLineMetrics
Measures the specified HTML text, which may 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 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 | ||
move_unprotected(x:Number, y:Number):void
Same as move, but cannot be prevented via the protection_move event.
| 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 | ||
pixelsToPercent(pxl:Number):Number
Method used to convert number of pixels to a
percentage relative to the contents of this container.
| Box | ||
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 | ||
removeAllChildren():void
Removes all children from the child list of this container.
| Container | ||
removeChild(child:DisplayObject):DisplayObject
Removes a child DisplayObject from the child list of this Container.
| Container | ||
removeChildAt(index:int):DisplayObject
Removes a child DisplayObject from the child list of this Container
at the specified index.
| Container | ||
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 | ||
setActualSize_unprotected(w:Number, h:Number):void
Same as setActualSize, but is not cancelable via the protection_size event.
| UIComponent | ||
setChildIndex(child:DisplayObject, newIndex:int):void
Sets the index of a particular child.
| Container | ||
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 | ||
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 | ||
setVisible_unprotected(value:Boolean, noEvent:Boolean = false):void
Same as setVisible, but cannot be prevented.
| 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
Returns a string indicating the location of this object
within the hierarchy of DisplayObjects in the Application.
| FlexSprite | ||
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 |
Event | Summary | Defined by | ||
---|---|---|---|---|
Dispatched when the component is added to a container as a content child
by using the addChild() or addChildAt() method. | UIComponent | |||
Dispatched after a child has been added to a container. | Container | |||
Dispatched after the index (among the container children) of a container child changes. | Container | |||
Dispatched before a child of a container is removed. | Container | |||
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 when the data property changes. | Container | |||
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 the component has returned to the root view state. | UIComponent | |||
Dispatched before the component exits from the root 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 when a user clicks a button. | ButtonBar | |||
Dispatched when a navigation item is selected. | NavBar | |||
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 about to be hidden (visible = false); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is about to be moved via move(); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is about to be shown (visible = true); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is about to be sized via setActualSize(); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is removed from a container as a content child
by using the removeChild() or removeChildAt() method. | UIComponent | |||
Dispatched when the component is resized. | UIComponent | |||
Dispatched when an object's state changes from invisible to visible. | UIComponent | |||
Dispatched by the component when it is time to create a ToolTip. | UIComponent | |||
Dispatched by the component when its ToolTip has been hidden and will 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 | |||
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: uint Format: Color CSS Inheritance: yes Background color of the component when it is disabled. | Container | |||
Type: uint Format: Color CSS Inheritance: yes Determines the color of a ProgressBar. | Container | |||
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 lower edge of the component to the lower edge of its content area. | UIComponent | |||
Type: Number CSS Inheritance: no The color brightness of the component. | UIComponent | |||
buttonHeight
| Type: Number Format: Length CSS Inheritance: no Height of each button, in pixels. If undefined, the height of each button is determined by the font styles applied to the container. If you set this property, the specified value overrides this calculation. | ButtonBar | ||
buttonStyleName
| Type: String CSS Inheritance: no Name of CSS style declaration that specifies styles for the buttons. | ButtonBar | ||
buttonWidth
| Type: Number Format: Length CSS Inheritance: no Width of each button, in pixels. If undefined, the default width of each button is calculated from its label text. | ButtonBar | ||
Type: uint Format: Color CSS Inheritance: yes Color of text in the component, including the component label. | Container | |||
Type: Number CSS Inheritance: no The color contrast of the component. | UIComponent | |||
Type: uint Format: Color CSS Inheritance: yes Color of text in the component if it is disabled. | Container | |||
Type: Number CSS Inheritance: no The alpha value for the overlay that is placed on top of the container when it is disabled. | Container | |||
Type: uint Format: Color CSS Inheritance: yes Color of the component highlight when validation fails. | UIComponent | |||
firstButtonStyleName
| Type: String CSS Inheritance: no Name of CSS style declaration that specifies styles for the first button. If this is unspecified, the default value of the buttonStyleName style property is used.
| ButtonBar | ||
Type: String CSS Inheritance: yes Sets the antiAliasType property of internal TextFields. | Container | |||
Type: String CSS Inheritance: yes Name of the font to use. | Container | |||
Type: String CSS Inheritance: yes Sets the gridFitType property of internal TextFields that represent text in Flex controls. | Container | |||
Type: Number CSS Inheritance: yes Sets the sharpness property of internal TextFields that represent text in Flex controls. | Container | |||
Type: Number Format: Length CSS Inheritance: yes Height of the text, in pixels. | Container | |||
Type: String CSS Inheritance: yes Determines whether the text is italic font. | Container | |||
Type: Number CSS Inheritance: yes Sets the thickness property of internal TextFields that represent text in Flex controls. | Container | |||
Type: String CSS Inheritance: yes Determines whether the text is boldface. | Container | |||
horizontalAlign
| Type: String CSS Inheritance: no Horizontal alignment of all buttons within the ButtonBar. Since individual buttons stretch to fill the entire ButtonBar, this style is only useful if you use the buttonWidth style and the combined widths of the buttons are less than than the width of the ButtonBar. Possible values are "left" , "center" ,
and "right" .
The default value is "center" . | ButtonBar | ||
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 | |||
horizontalGap
| Type: Number Format: Length CSS Inheritance: no Number of pixels between children in the horizontal direction. The default value is 0 . | ButtonBar | ||
Type: Number CSS Inheritance: no The color hue of the component. | UIComponent | |||
Type: Boolean CSS Inheritance: yes A Boolean value that indicates whether kerning is enabled ( true ) or disabled (false ). | Container | |||
lastButtonStyleName
| Type: String CSS Inheritance: no Vertical alignment of all buttons within the ButtonBar. Since individual buttons stretch to fill the entire ButtonBar, this style is only useful if you use the buttonHeight style and the combined heights of the buttons are less than than the width of the ButtonBar. Possible values are "top" , "middle" ,
and "bottom" .
The default value is "middle" . | ButtonBar | ||
Type: String CSS Inheritance: no The horizontal distance in pixels from the left edge of the component's content area to the left edge of the component. | UIComponent | |||
Type: Number CSS Inheritance: yes The number of additional pixels to appear between each character. | Container | |||
Type: Number CSS Inheritance: no The opacity of the component. | UIComponent | |||
Type: Number Format: Length CSS Inheritance: no Number of pixels between the container's bottom border and the bottom of its content area. | Box | |||
Type: Number Format: Length CSS Inheritance: no Number of pixels between the component's left border and the left edge of its content area. | Container | |||
Type: Number Format: Length CSS Inheritance: no Number of pixels between the component's right border and the right edge of its content area. | Container | |||
Type: Number Format: Length CSS Inheritance: no Number of pixels between the container's top border and the top of its content area. | Box | |||
Type: String CSS Inheritance: no The horizontal distance in pixels from the right edge of the component to the right edge of its content area. | UIComponent | |||
Type: Number CSS Inheritance: no The color saturation of the component. | UIComponent | |||
Type: String CSS Inheritance: yes Alignment of text within a container. | Container | |||
Type: String CSS Inheritance: yes Determines whether the text is underlined. | Container | |||
Type: Number Format: Length CSS Inheritance: yes Offset of first line of text from the left side of the container, in pixels. | Container | |||
Type: uint Format: Color CSS Inheritance: yes Theme color of a component. | UIComponent | |||
Type: String CSS Inheritance: no The vertical distance in pixels from the top edge of the control's content area to the top edge of the component. | UIComponent | |||
verticalAlign
| Type: String CSS Inheritance: no Vertical alignment of all buttons within the ButtonBar. Since individual buttons stretch to fill the entire ButtonBar, this style is only useful if you use the buttonHeight style and the combined heights of the buttons are less than than the width of the ButtonBar. Possible values are "top" , "middle" ,
and "bottom" .
The default value is "middle" . | ButtonBar | ||
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 | |||
verticalGap
| Type: Number Format: Length CSS Inheritance: no Number of pixels between children in the vertical direction. The default value is 0 . | ButtonBar |
ButtonBar | () | constructor |
public function ButtonBar()
Constructor.
itemClick | event |
mx.events.ItemClickEvent
mx.events.ItemClickEvent.ITEM_CLICK
Dispatched when a user clicks a button.
This event is only dispatched if the dataProvider
property
does not refer to a ViewStack container.
The ItemClickEvent.ITEM_CLICK
constant defines the value of the
type
property of the event object for an itemClick
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 . |
index | The index of the navigation item that was clicked. |
item | The item in the data provider of the navigation item that was clicked. |
label | The label of the navigation item that was clicked. |
relatedObject | The child object that generated the event. |
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. |