(Preview)
| Package | spark.components.gridClasses |
| Class | public class GridItemRenderer |
| Inheritance | GridItemRenderer  Group GroupBase UIComponent FlexSprite Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object |
| Implements | IGridItemRenderer |
| Subclasses | DefaultGridHeaderRenderer, DefaultGridHeaderRenderer |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Item renderers are associated with each column of a grid.
Set the item renderer for a column by using
the GridColumn.itemRenderer property.
By default, an item renderer does not clip to the boundaries of the cell.
If your renderer extends past the bounds of the cell, you can set
clipAndEnableScrolling to true to clip the renderer to the bounds
of the cell.
Transitions in DataGrid item renderers aren't supported. The GridItemRenderer class
has disabled its transitions property so setting it will have no effect.
Efficiency Considerations
DataGrid scrolling and startup performance are directly linked to item renderer complexity and the number of item renderers that are visible within the DataGrid's scroller. Custom GridItemRenderer instances are used and reused repeatedly so it's important to define them as simply and efficiently as possible.
If an item renderer's responsibility is limited to displaying
one or more lines of text, then developers should seriously
consider using the DefaultItemRenderer class which does so very
economically (an application that's only going to be deployed on
Windows one can gain some additional performance by using the
UITextFieldGridItemRenderer class instead). The most efficient
way to use GridItemRenderer to display the GridColumn's dataField
as text is to identify the GridItemRenderer's text displaying
element with id="labelDisplay". The labelDisplay
component must be a TextBase subclass like
Label or RichText. You might take this
approach, instead of just using DefaultGridItemRenderer, if your
item renderer included some additional elements that did not
depend on the item renderer's data, like borders or other graphic
elements.
An item renderer that contains more than one visual element
whose properties depend on the item renderer's data can use data
binding to define the values of those properties. This approach
yields MXML code that's straightforward to read and maintain and
its performance may be adequate if the number of visible item
renderers is limited (see the DataGrid requestedRowCount
and requestedColumnCount properties). The most efficient
way to configure this kind of item renderer is to override its
prepare() method and do the work there. The
renderer's prepare() method is called each time the
renderer is redisplayed and so it's important that it's coded
efficiently. If your item renderer is stateful, for example if it
caches internal values, you can clear its state in its
discard() method. The discard() method
is called each time the renderer is moved to the DataGrid's
internal free list, where it's available for reuse.
GridItemRenderers should be as simple as possible. To gain the
best possible performance, minimize the number of components, and
the depth of the hierarchy. If it's practical, use explicit
positions and sizes rather than constraints to define the layout.
DataGrid's with variableRowHeight="false" (the
default) tend to perform better, likewise for
showDataTips="false" (the default) and
clipAndEnableScrolling="false" (the default).
Examples of the various GridItemRenderer configurations described here are available in the examples section.
Default MXML PropertymxmlContent
More examples
Related API Elements
spark.components.DataGrid
spark.components.Grid
spark.components.gridClasses.GridColumn
spark.components.gridClasses.GridColumn.itemRenderer
spark.skins.spark.DefaultGridItemRenderer
spark.components.Grid
spark.components.gridClasses.GridColumn
spark.components.gridClasses.GridColumn.itemRenderer
spark.skins.spark.DefaultGridItemRenderer
Public Properties
Hide Inherited Public Properties
Show Inherited Public Properties| Property | Defined By | ||
|---|---|---|---|
 | accessibilityDescription : String
A convenience accessor for the description property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityEnabled : Boolean
A convenience accessor for the silent property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityImplementation : AccessibilityImplementation
The current accessibility implementation (AccessibilityImplementation)
for this InteractiveObject instance. | InteractiveObject | |
| accessibilityName : String
A convenience accessor for the name property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityProperties : AccessibilityProperties
The current accessibility options for this display object. | DisplayObject | |
| accessibilityShortcut : String
A convenience accessor for the shortcut property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| activeEffects : Array [read-only]
The list of effects that are currently playing on the component,
as an Array of EffectInstance instances. | UIComponent | |
| alpha : Number
Indicates the alpha transparency value of the object specified. | DisplayObject | |
| autoLayout : Boolean
If true, measurement and layout are done
when the position or size of a child is changed. | GroupBase | |
| automationDelegate : Object
The delegate object that handles the automation-related functionality. | UIComponent | |
| automationEnabled : Boolean [read-only]
True if this component is enabled for automation, false
otherwise. | UIComponent | |
| automationName : String
Name that can be used as an identifier for this object. | UIComponent | |
| automationOwner : DisplayObjectContainer [read-only]
The owner of this component for automation purposes. | UIComponent | |
| automationParent : DisplayObjectContainer [read-only]
The parent of this component for automation purposes. | UIComponent | |
| automationTabularData : Object [read-only]
An implementation of the IAutomationTabularData interface, which
can be used to retrieve the data. | UIComponent | |
| automationValue : Array [read-only]
This value generally corresponds to the rendered appearance of the
object and should be usable for correlating the identifier with
the object as it appears visually within the application. | UIComponent | |
| automationVisible : Boolean [read-only]
True if this component is visible for automation, false
otherwise. | UIComponent | |
| baseline : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| baselinePosition : Number [override] [read-only]
The y-coordinate of the baseline
of the first line of text of the component. | Group | |
| baselinePositionElement : IVisualElement
The element used to calculate the GroupBase's baselinePosition
| Group | |
| blendMode : String [override]
A value from the BlendMode class that specifies which blend mode to use. | Group | |
| blendShader : Shader [write-only]
Sets a shader that is used for blending the foreground and background. | DisplayObject | |
| bottom : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| buttonMode : Boolean
Specifies the button mode of this sprite. | Sprite | |
| 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 | |
| cacheHeuristic : Boolean [write-only]
Used by Flex to suggest bitmap caching for the object. | UIComponent | |
| cachePolicy : String
Specifies the bitmap caching policy for this object. | UIComponent | |
| className : String [read-only]
The name of this instance's class, such as "Button". | UIComponent | |
| clipAndEnableScrolling : Boolean
If true, specifies to clip the children to the boundaries of the viewport. | GroupBase | |
| column : GridColumn
The GridColumn object representing the column associated with this item renderer. | GridItemRenderer | ||
| columnIndex : int [read-only]
The column index for this item renderer's cell. | GridItemRenderer | ||
| constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
| contentHeight : Number [read-only]
The height of the viewport's content. | GroupBase | |
| contentMouseX : Number [read-only]
Returns the x position of the mouse, in the content coordinate system. | UIComponent | |
| contentMouseY : Number [read-only]
Returns the y position of the mouse, in the content coordinate system. | UIComponent | |
| contentWidth : Number [read-only]
The width of the viewport's contents. | GroupBase | |
| contextMenu : NativeMenu
Specifies the context menu associated with this object. | InteractiveObject | |
| currentState : String
The current view state of the component. | UIComponent | |
| cursorManager : ICursorManager [read-only]
Gets the CursorManager that controls the cursor for this component
and its peers. | UIComponent | |
| data : Object
The value of the data provider item for the grid row
corresponding to the item renderer. | GridItemRenderer | ||
| depth : Number
Determines the order in which items inside of containers
are rendered. | UIComponent | |
| descriptor : UIComponentDescriptor
Reference to the UIComponentDescriptor, if any, that was used
by the createComponentFromDescriptor() method to create this
UIComponent instance. | UIComponent | |
| designLayer : DesignLayer
Specifies the optional DesignLayer instance associated with this visual
element. | UIComponent | |
| document : Object
A reference to the document object associated with this UIComponent. | UIComponent | |
| doubleClickEnabled : Boolean [override]
Specifies whether the UIComponent object receives doubleClick events. | UIComponent | |
| down : Boolean
This property is set to true when one of two input gestures occurs within a
grid cell: either the mouse button or the touch screen is pressed. | GridItemRenderer | ||
| dragging : Boolean
Contains true if the item renderer is being dragged,
typically as part of a drag and drop operation. | GridItemRenderer | ||
| dropTarget : DisplayObject [read-only]
Specifies the display object over which the sprite is being dragged, or on
which the sprite was dropped. | Sprite | |
| enabled : Boolean
Whether the component can accept user interaction. | UIComponent | |
| errorString : String
The text that displayed by a component's error tip when a
component is monitored by a Validator and validation fails. | UIComponent | |
| explicitHeight : Number
Number that specifies the explicit height of the component,
in pixels, in the component's coordinates. | UIComponent | |
| explicitMaxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMaxWidth : Number
The maximum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMinHeight : Number
The minimum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMinWidth : Number
The minimum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| explicitWidth : Number
Number that specifies the explicit width of the component,
in pixels, in the component's coordinates. | UIComponent | |
| filters : Array
An indexed array that contains each filter object currently associated with the display object. | DisplayObject | |
| flexContextMenu : IFlexContextMenu
The context menu for this UIComponent. | UIComponent | |
| focusEnabled : Boolean
Indicates whether the component can receive focus when tabbed to. | UIComponent | |
| focusManager : IFocusManager
Gets the FocusManager that controls focus for this component
and its peers. | UIComponent | |
| focusPane : Sprite
The focus pane associated with this object. | UIComponent | |
| focusRect : Object
Specifies whether this object displays a focus rectangle. | InteractiveObject | |
| graphics : Graphics [read-only]
Specifies the Graphics object that belongs to this sprite where vector
drawing commands can occur. | Sprite | |
| grid : Grid [read-only]
Returns the Grid associated with this item renderer. | GridItemRenderer | ||
| hasFocusableChildren : Boolean
A flag that indicates whether child objects can receive focus. | UIComponent | |
| hasLayoutMatrix3D : Boolean [read-only]
Contains true if the element has 3D Matrix. | UIComponent | |
| height : Number [override]
Number that specifies the height of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| hitArea : Sprite
Designates another sprite to serve as the hit area for a sprite. | Sprite | |
| horizontalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| horizontalScrollPosition : Number
The x coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component. | GroupBase | |
| hovered : Boolean
Contains true if the item renderer is under the mouse and
the Grid's selectionMode is GridSelectionMode.SINGLE_CELL or
GridSelectionMode.MULTIPLE_CELLS, or if the mouse is within the
row the item renderer belongs to and the Grid's selectionMode is
GridSelectionMode.SINGLE_ROW or
GridSelectionMode.MULTIPLE_ROWS. | GridItemRenderer | ||
| id : String
ID of the component. | UIComponent | |
| includeInLayout : Boolean
Specifies whether this component is included in the layout of the
parent container. | UIComponent | |
| inheritingStyles : Object
The beginning of this component's chain of inheriting styles. | UIComponent | |
| initialized : Boolean
A flag that determines if an object has been through all three phases
of layout: commitment, measurement, and layout (provided that any were required). | UIComponent | |
| instanceIndex : int [read-only]
The index of a repeated component. | UIComponent | |
| instanceIndices : Array
An Array containing the indices required to reference
this UIComponent object from its parent document. | UIComponent | |
| is3D : Boolean [read-only]
Contains true when the element is in 3D. | UIComponent | |
| isDocument : Boolean [read-only]
Contains true if this UIComponent instance is a document object. | UIComponent | |
| isPopUp : Boolean
Set to true by the PopUpManager to indicate
that component has been popped up. | UIComponent | |
| label : String
The String to display in the item renderer. | GridItemRenderer | ||
| labelDisplay : spark.components.supportClasses:TextBase
An optional visual component in the item renderer
for displaying the label property. | GridItemRenderer | ||
| layout : LayoutBase
The layout object for this container. | GroupBase | |
| layoutMatrix3D : Matrix3D [write-only]
The transform matrix that is used to calculate a component's layout
relative to its siblings. | UIComponent | |
| left : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| loaderInfo : LoaderInfo [read-only]
Returns a LoaderInfo object containing information about loading the file
to which this display object belongs. | DisplayObject | |
| luminosityClip : Boolean
A property that controls whether the luminosity
mask clips the masked content. | GroupBase | |
| luminosityInvert : Boolean
A property that controls the calculation of the RGB
color value of a graphic element being masked by
a luminosity mask. | GroupBase | |
| maintainProjectionCenter : Boolean
When true, the component keeps its projection matrix centered on the
middle of its bounding box. | UIComponent | |
| mask : DisplayObject [override]
Sets the mask. | GroupBase | |
| maskType : String
The mask type. | GroupBase | |
| maxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| maxWidth : Number
The maximum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| measuredHeight : Number
The default height of the component, in pixels. | UIComponent | |
| measuredMinHeight : Number
The default minimum height of the component, in pixels. | UIComponent | |
| measuredMinWidth : Number
The default minimum width of the component, in pixels. | UIComponent | |
| measuredWidth : Number
The default width of the component, in pixels. | UIComponent | |
| metaData : Object
Obtains the meta data object of the DisplayObject instance if meta data was stored alongside the
the instance of this DisplayObject in the SWF file through a PlaceObject4 tag. | DisplayObject | |
| minHeight : Number
The minimum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| minWidth : Number
The minimum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| moduleFactory : IFlexModuleFactory
A module factory is used as context for using embedded fonts and for
finding the style manager that controls the styles for this
component. | UIComponent | |
| mouseChildren : Boolean
Determines whether or not the children of the object are mouse, or user input device, enabled. | DisplayObjectContainer | |
| mouseEnabled : Boolean
Specifies whether this object receives mouse, or other user input, messages. | InteractiveObject | |
| mouseEnabledWhereTransparent : Boolean
When true, this property
ensures that the entire bounds of the Group respond to
mouse events such as click and roll over. | GroupBase | |
| mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on. | UIComponent | |
| 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 | |
| mxmlContent : Array [write-only]
The visual content children for this Group. | Group | |
| name : String
Indicates the instance name of the DisplayObject. | DisplayObject | |
| needsSoftKeyboard : Boolean
Specifies whether a virtual keyboard (an on-screen, software keyboard) should display
when this InteractiveObject instance receives focus. | InteractiveObject | |
| nestLevel : int
Depth of this object in the containment hierarchy. | UIComponent | |
| nonInheritingStyles : Object
The beginning of this component's chain of non-inheriting styles. | UIComponent | |
| numAutomationChildren : int [read-only]
The number of automation children this container has. | UIComponent | |
| numElements : int [read-only]
The number of visual elements in this container. | GroupBase | |
| opaqueBackground : Object
Specifies whether the display object is opaque with a certain background color. | DisplayObject | |
| overlay : DisplayLayer [read-only]
The overlay plane for this group. | GroupBase | |
| owner : DisplayObjectContainer
The owner of this IVisualElement object. | UIComponent | |
| parent : DisplayObjectContainer [override] [read-only]
The parent container or component for this component. | UIComponent | |
| parentApplication : Object [read-only]
A reference to the Application object that contains this UIComponent
instance. | UIComponent | |
| parentDocument : Object [read-only]
A reference to the parent document object for this UIComponent. | UIComponent | |
| percentHeight : Number
Specifies the height of a component as a percentage
of its parent's size. | UIComponent | |
| percentWidth : Number
Specifies the width of a component as a percentage
of its parent's size. | UIComponent | |
| postLayoutTransformOffsets : mx.geom:TransformOffsets
Defines a set of adjustments that can be applied to the object's
transform in a way that is invisible to its parent's layout. | UIComponent | |
| processedDescriptors : Boolean
Set to true after immediate or deferred child creation,
depending on which one happens. | UIComponent | |
| repeater : IRepeater [read-only]
A reference to the Repeater object
in the parent document that produced this UIComponent. | UIComponent | |
| repeaterIndex : int [read-only]
The index of the item in the data provider
of the Repeater that produced this UIComponent. | UIComponent | |
| repeaterIndices : Array
An Array containing the indices of the items in the data provider
of the Repeaters in the parent document that produced this UIComponent. | UIComponent | |
| repeaters : Array
An Array containing references to the Repeater objects
in the parent document that produced this UIComponent. | UIComponent | |
| resizeMode : String
The ResizeMode for this container. | GroupBase | |
| right : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| 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 [override]
Indicates the rotation of the DisplayObject instance, in degrees, from its original orientation. | UIComponent | |
| rotationX : Number [override]
Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationY : Number [override]
Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationZ : Number [override]
Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | UIComponent | |
| rowIndex : int
The zero-based index of the row of the cell being rendered. | GridItemRenderer | ||
| scale9Grid : Rectangle
The current scaling grid that is in effect. | DisplayObject | |
| scaleGridBottom : Number
Specifies the bottom coordinate of the scale grid. | Group | |
| scaleGridLeft : Number
Specifies the left coordinate of the scale grid. | Group | |
| scaleGridRight : Number
Specifies the right coordinate of the scale grid. | Group | |
| scaleGridTop : Number
Specifies the top coordinate of the scale grid. | Group | |
| scaleX : Number [override]
Number that specifies the horizontal scaling factor. | UIComponent | |
| scaleY : Number [override]
Number that specifies the vertical scaling factor. | UIComponent | |
| scaleZ : Number [override]
Number that specifies the scaling factor along the z axis. | UIComponent | |
| screen : Rectangle [read-only]
Returns an object that contains the size and position of the base
drawing surface for this object. | UIComponent | |
| scrollRect : Rectangle
The scroll rectangle bounds of the display object. | DisplayObject | |
| selected : Boolean
Contains true if the item renderer's cell is part
of the current selection. | GridItemRenderer | ||
| showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy. | UIComponent | |
| showsCaret : Boolean
Contains true if the item renderer's cell is indicated by the caret. | GridItemRenderer | ||
| softKeyboard : String
Controls the appearance of the soft keyboard. | InteractiveObject | |
| softKeyboardInputAreaOfInterest : Rectangle
Defines the area that should remain on-screen when a soft keyboard is displayed (not available on iOS). | InteractiveObject | |
| soundTransform : flash.media:SoundTransform
Controls sound within this sprite. | Sprite | |
| stage : Stage [read-only]
The Stage of the display object. | DisplayObject | |
| states : Array
The view states that are defined for this component. | UIComponent | |
| styleDeclaration : CSSStyleDeclaration
Storage for the inline inheriting styles on this object. | UIComponent | |
| styleManager : IStyleManager2 [read-only]
Returns the StyleManager instance used by this component. | UIComponent | |
| styleName : Object
The class style used by this component. | UIComponent | |
| styleParent : IAdvancedStyleClient
A component's parent is used to evaluate descendant selectors. | UIComponent | |
| systemManager : ISystemManager
Returns the SystemManager object used by this component. | UIComponent | |
| tabChildren : Boolean
Determines whether the children of the object are tab enabled. | DisplayObjectContainer | |
| tabEnabled : Boolean
Specifies whether this object is in the tab order. | InteractiveObject | |
| tabFocusEnabled : Boolean
A flag that indicates whether this object can receive focus
via the TAB key
This is similar to the tabEnabled property
used by the Flash Player.
This is usually true for components that
handle keyboard input, but some components in controlbars
have them set to false because they should not steal
focus from another component like an editor. | UIComponent | |
| tabIndex : int
Specifies the tab ordering of objects in a SWF file. | InteractiveObject | |
| textSnapshot : flash.text:TextSnapshot [read-only]
Returns a TextSnapshot object for this DisplayObjectContainer instance. | DisplayObjectContainer | |
| toolTip : String
Text to display in the ToolTip. | UIComponent | |
| top : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| transform : flash.geom:Transform [override]
An object with properties pertaining to a display object's matrix, color transform,
and pixel bounds. | UIComponent | |
| transformX : Number
Sets the x coordinate for the transform center of the component. | UIComponent | |
| transformY : Number
Sets the y coordinate for the transform center of the component. | UIComponent | |
| transformZ : Number
Sets the z coordinate for the transform center of the component. | UIComponent | |
| tweeningProperties : Array
Array of properties that are currently being tweened on this object. | UIComponent | |
| uid : String
A unique identifier for the object. | UIComponent | |
| updateCompletePendingFlag : Boolean
A flag that determines if an object has been through all three phases
of layout validation (provided that any were required). | UIComponent | |
| useHandCursor : Boolean
A Boolean value that indicates whether the pointing hand (hand cursor) appears when the pointer rolls
over a sprite in which the buttonMode property is set to true. | Sprite | |
| validationSubField : String
Used by a validator to associate a subfield with this component. | UIComponent | |
| verticalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| verticalScrollPosition : Number
The y coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component. | GroupBase | |
| visible : Boolean [override]
Whether or not the display object is visible. | UIComponent | |
| width : Number [override]
Number that specifies the width of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| x : Number [override]
Number that specifies the component's horizontal position,
in pixels, within its parent container. | UIComponent | |
| y : Number [override]
Number that specifies the component's vertical position,
in pixels, within its parent container. | UIComponent | |
| z : Number [override]
Indicates the z coordinate position along the z-axis of the DisplayObject
instance relative to the 3D parent container. | UIComponent | |
Protected Properties
Public Methods
| Method | Defined By | ||
|---|---|---|---|
Constructor. | GridItemRenderer | ||
|
Adds a visual element to this container. | Group | |
|
Adds a visual element to this container. | Group | |
| 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 | |
|
Adds a non-visual style client to this component instance. | UIComponent | |
|
Indicates whether the security restrictions
would cause any display objects to be omitted from the list returned by calling
the DisplayObjectContainer.getObjectsUnderPoint() method
with the specified point point. | DisplayObjectContainer | |
|
Queues a function to be called later. | UIComponent | |
|
Deletes a style property from this component instance. | UIComponent | |
|
Determines whether the specified display object is a child of the DisplayObjectContainer instance or
the instance itself. | DisplayObjectContainer | |
|
Determines whether the specified IVisualElement is a
child of the container instance or the instance
itself. | GroupBase | |
|
Converts a Point object from content coordinates to global coordinates. | UIComponent | |
|
Converts a Point object from content to local coordinates. | UIComponent | |
|
Returns a set of properties that identify the child within
this container. | UIComponent | |
|
Returns a set of properties that identify the child within
this container. | UIComponent | |
|
Creates an id reference to this IUIComponent object
on its parent document object. | UIComponent | |
|
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 | |
Called from the item renderer parent's updateDisplayList() method
when it has been determined that this renderer will no longer be visible. | GridItemRenderer | ||
| [override]
Dispatches an event into the event flow. | UIComponent | |
|
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 | |
|
Called by the effect instance when it stops playing on the component. | UIComponent | |
|
Called by the effect instance when it starts playing on the component. | UIComponent | |
|
Ends all currently playing effects on the component. | UIComponent | |
|
Executes all the bindings for which the UIComponent object is the destination. | UIComponent | |
|
Called after printing is complete. | UIComponent | |
|
Provides the automation object at the specified index. | UIComponent | |
|
Provides the automation object list . | UIComponent | |
|
Returns a rectangle that defines the area of the display object relative to the coordinate system
of the targetCoordinateSpace object. | DisplayObject | |
|
Returns the x coordinate of the element's bounds at the specified element size. | UIComponent | |
|
Returns the y coordinate of the element's bounds at the specified element size. | UIComponent | |
|
Returns the child display object that exists with the specified name. | DisplayObjectContainer | |
|
Finds the type selectors for this UIComponent instance. | UIComponent | |
|
Returns a layout constraint value, which is the same as
getting the constraint style for this component. | UIComponent | |
|
Returns the visual element at the specified index. | GroupBase | |
|
Returns the index position of a visual element. | GroupBase | |
|
A convenience method for determining whether to use the
explicit or measured height
| UIComponent | |
|
A convenience method for determining whether to use the
explicit or measured width
| UIComponent | |
|
Gets the object that currently has focus. | UIComponent | |
|
Returns the change to the horizontal scroll position to handle
different scrolling options. | GroupBase | |
|
Returns the element's layout height. | UIComponent | |
|
Returns the element's layout width. | UIComponent | |
|
Returns the x coordinate that the element uses to draw on screen. | UIComponent | |
|
Returns the y coordinate that the element uses to draw on screen. | UIComponent | |
|
Returns the transform matrix that is used to calculate the component's
layout relative to its siblings. | UIComponent | |
|
Returns the layout transform Matrix3D for this element. | UIComponent | |
|
Returns the element's maximum height. | UIComponent | |
|
Returns the element's maximum width. | UIComponent | |
|
Returns the element's minimum height. | UIComponent | |
|
Returns the element's minimum width. | UIComponent | |
|
Returns an array of objects that lie under the specified point and are children
(or grandchildren, and so on) of this DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Returns the element's preferred height. | UIComponent | |
|
Returns the element's preferred width. | UIComponent | |
|
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 | |
|
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 | |
|
Gets a style property that has been set anywhere in this
component's style lookup chain. | UIComponent | |
|
Returns the change to the vertical scroll position to handle
different scrolling options. | GroupBase | |
|
Layouts that honor the useVirtualLayout flag will use this
method at updateDisplayList() time to get layout elements that are "in view",
i.e. | GroupBase | |
|
Converts a Point object from global to content coordinates. | UIComponent | |
|
Converts the point object from the Stage (global) coordinates
to the display object's (local) coordinates. | DisplayObject | |
|
Converts a two-dimensional point from the Stage (global) coordinates to a
three-dimensional display object's (local) coordinates. | DisplayObject | |
|
Returns true if currentCSSState is not null. | UIComponent | |
|
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
|
Indicates whether an object has a specified property defined. | Object | |
|
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
|
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 | |
|
Evaluates the display object to see if it overlaps or intersects with the
point specified by the x and y parameters. | DisplayObject | |
|
Returns a box Matrix which can be passed to the
drawRoundRect() method
as the rot parameter when drawing a horizontal gradient. | UIComponent | |
|
Initializes the internal structure of this component. | UIComponent | |
|
Initializes various properties which keep track of repeated instances
of this component. | UIComponent | |
|
Marks a component so that its updateDisplayList()
method gets called during a later screen update. | UIComponent | |
|
Notify the host component that an element has changed and needs to be redrawn. | Group | |
|
Notify the host component that an element changed and needs to validate properties. | Group | |
|
Notify the host that an element layer has changed. | Group | |
|
Notify the host component that an element size has changed. | Group | |
|
Called by a component's items to indicate that their depth
property has changed. | UIComponent | |
|
An element must call this method when its layoutDirection changes or
when its parent's layoutDirection changes. | UIComponent | |
|
Marks a component so that its commitProperties()
method gets called during a later screen update. | UIComponent | |
|
Marks a component so that its measure()
method gets called during a later screen update. | UIComponent | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
|
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 | |
|
Converts a Point object from local to content coordinates. | UIComponent | |
|
Converts the point object from the display object's (local) coordinates to the
Stage (global) coordinates. | DisplayObject | |
|
Returns true if cssState matches currentCSSState. | UIComponent | |
|
Determines whether this instance is the same as, or is a subclass of,
the given type. | UIComponent | |
|
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 | |
|
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 | |
|
Moves the component to a specified position within its parent. | UIComponent | |
|
Propagates style changes to the children. | UIComponent | |
|
Returns true if the chain of owner properties
points from child to this UIComponent. | UIComponent | |
|
Called by Flex when a UIComponent object is added to or removed from a parent. | UIComponent | |
Called from the item renderer parent's updateDisplayList() method
after all of the renderer's properties have been set. | GridItemRenderer | ||
|
Prepares an IFlexDisplayObject for printing. | UIComponent | |
|
Indicates whether the specified property exists and is enumerable. | Object | |
|
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 | |
|
For each effect event, registers the EffectManager
as one of the event listeners. | UIComponent | |
|
Removes all visual elements from the container. | Group | |
|
Removes all child DisplayObject instances from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Removes the specified visual element from the child list of
this container. | Group | |
|
Removes a visual element from the specified index position
in the container. | Group | |
|
Removes a listener from the EventDispatcher object. | EventDispatcher | |
|
Removes a non-visual style client from this component instance. | UIComponent | |
|
Replays the specified event. | UIComponent | |
|
Raises a virtual keyboard. | InteractiveObject | |
|
Resolves a child by using the id provided. | UIComponent | |
| [static]
Resumes the background processing of methods
queued by callLater(), after a call to
suspendBackgroundProcessing(). | UIComponent | |
|
Sizes the object. | UIComponent | |
|
Sets a layout constraint value, which is the same as
setting the constraint style for this component. | UIComponent | |
|
Sets the contentWidth and contentHeight
properties. | GroupBase | |
|
Set the current state. | UIComponent | |
|
Changes the position of an existing visual element in the visual container. | Group | |
|
Sets the focus to this component. | UIComponent | |
|
Sets the coordinates that the element uses to draw on screen. | UIComponent | |
|
Sets the layout size of the element. | UIComponent | |
|
Sets the transform Matrix that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
|
Sets the transform Matrix3D that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
Sets a style property on this component instance. | UIComponent | |
|
Called when the visible property changes. | UIComponent | |
|
Lets the user drag the specified sprite. | Sprite | |
|
Lets the user drag the specified sprite on a touch-enabled device. | Sprite | |
|
Recursively stops the timeline execution of all MovieClips rooted at this object. | DisplayObjectContainer | |
|
Ends the startDrag() method. | Sprite | |
|
Ends the startTouchDrag() method, for use with touch-enabled devices. | Sprite | |
|
Detects changes to style properties. | UIComponent | |
|
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| [static]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
|
Swaps the index of the two specified visual elements. | Group | |
|
Swaps the visual elements at the two specified index
positions in the container. | Group | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
| [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 | |
|
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 | |
|
Validates the position and size of children and draws other
visuals. | UIComponent | |
|
Validate and update the properties and layout of this object
and redraw it, if necessary. | UIComponent | |
|
Used by layout logic to validate the properties of a component
by calling the commitProperties() method. | UIComponent | |
|
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 | |
|
Handles both the valid and invalid events from a
validator assigned to this component. | UIComponent | |
|
Returns the primitive value of the specified object. | Object | |
|
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher | |
Protected Methods
| Method | Defined By | ||
|---|---|---|---|
|
Adjust the focus rectangle. | UIComponent | |
|
Commits the computed matrix built from the combination of the layout
matrix and the transform offsets to the flash displayObject's transform. | UIComponent | |
|
This is an internal method used by the Flex framework
to support the Dissolve effect. | UIComponent | |
|
Determines if the call to the measure() method can be skipped. | UIComponent | |
|
Performs any final processing after child objects are created. | UIComponent | |
|
Processes the properties set on the component. | UIComponent | |
| [override]
If the layout object has not been set yet,
createChildren() assigns this container a
default layout object, BasicLayout.
| GroupBase | |
|
Creates a new object using a context
based on the embedded font being used. | UIComponent | |
|
Creates the object using a given moduleFactory. | UIComponent | |
|
Helper method for dispatching a PropertyChangeEvent
when a property is updated. | UIComponent | |
|
The event handler called when a UIComponent object gets focus. | UIComponent | |
|
The event handler called when a UIComponent object loses focus. | UIComponent | |
Returns the name of the state to be applied to the renderer. | GridItemRenderer | ||
|
Initializes the implementation and storage of some of the less frequently
used advanced layout features of a component. | UIComponent | |
|
Finalizes the initialization of this component. | UIComponent | |
|
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 | |
|
Typically overridden by components containing UITextField objects,
where the UITextField object gets focus. | UIComponent | |
|
The event handler called for a keyDown event. | UIComponent | |
|
The event handler called for a keyUp event. | UIComponent | |
|
Calculates the default size, and optionally the default minimum size,
of the component. | UIComponent | |
|
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 | |
|
Specifies a transform stretch factor in the horizontal and vertical direction. | UIComponent | |
|
This method is called when a state changes to check whether
state-specific styles apply to this component. | UIComponent | |
|
Draws the object and/or sizes and positions its children. | UIComponent | |
Events
| Event | Summary | Defined By | ||
|---|---|---|---|---|
| [broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active. | EventDispatcher | ||
| 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 a display object is added to the display list. | DisplayObject | ||
| 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 | ||
| Dispatched when the user selects 'Clear' (or 'Delete') from the text context menu. | InteractiveObject | ||
| Dispatched when a user presses and releases the main button of the user's pointing device over the same InteractiveObject. | InteractiveObject | ||
| Dispatched when a user gesture triggers the context menu associated with this interactive object in an AIR application. | InteractiveObject | ||
| Dispatched when the user activates the platform-specific accelerator key combination for a copy operation or selects 'Copy' from the text context menu. | InteractiveObject | ||
| 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 user activates the platform-specific accelerator key combination for a cut operation or selects 'Cut' from the text context menu. | InteractiveObject | ||
| Dispatched when the data property changes. | GridItemRenderer | |||
| [broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive. | EventDispatcher | ||
| 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 | ||
| 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 when a visual element is added to the content holder. | Group | ||
| Dispatched when a visual element is removed from the content holder. | Group | ||
| [broadcast event] Dispatched when the playhead is entering a new frame. | DisplayObject | ||
| Dispatched after the component has entered a view state. | UIComponent | ||
| [broadcast event] Dispatched when the playhead is exiting the current frame. | DisplayObject | ||
| Dispatched just before the component exits a view state. | UIComponent | ||
| Dispatched after a display object gains focus. | InteractiveObject | ||
| Dispatched after a display object loses focus. | InteractiveObject | ||
| [broadcast event] Dispatched after the constructors of frame display objects have run but before frame scripts have run. | DisplayObject | ||
| Dispatched when the user creates a point of contact along the edge of the touch surface with an InteractiveObject instance, (such as tapping along the edge of the touch surface on Siri Remote for Apple TV) Some devices might also interpret this contact as a combination of several touch events, as well. | InteractiveObject | ||
| 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 | ||
| Dispatched when the user moves a point of contact over the InteractiveObject instance on a touch-enabled device (such as moving a finger from left to right over a display object on a mobile phone or tablet with a touch screen). | InteractiveObject | ||
| 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 | ||
| 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 | ||
| 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 | ||
| 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 | ||
| Dispatched when an object's state changes from visible to invisible. | UIComponent | ||
| This event is dispatched to any client app that supports inline input with an IME | InteractiveObject | ||
| 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 the user presses a key. | InteractiveObject | ||
| Dispatched when the user attempts to change focus by using keyboard navigation. | InteractiveObject | ||
| Dispatched when the user releases a key. | InteractiveObject | ||
| Dispatched when a user presses and releases the middle button of the user's pointing device over the same InteractiveObject. | InteractiveObject | ||
| Dispatched when a user presses the middle pointing device button over an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when a user releases the pointing device button over an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when a user presses the pointing device button over an InteractiveObject instance. | InteractiveObject | ||
| Dispatched from a component opened using the PopUpManager when the user clicks outside it. | UIComponent | ||
| Dispatched when the user attempts to change focus by using a pointer device. | InteractiveObject | ||
| Dispatched when a user moves the pointing device while it is over an InteractiveObject. | InteractiveObject | ||
| Dispatched when the user moves a pointing device away from an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when the user moves a pointing device over an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when a user releases the pointing device button over an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when a mouse wheel is spun over an InteractiveObject instance. | InteractiveObject | ||
| 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 by the drag initiator InteractiveObject when the user releases the drag gesture. | InteractiveObject | ||
| 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 | ||
| Dispatched by an InteractiveObject when a drag gesture enters its boundary. | InteractiveObject | ||
| Dispatched by an InteractiveObject when a drag gesture leaves its boundary. | InteractiveObject | ||
| Dispatched by an InteractiveObject continually while a drag gesture remains within its boundary. | InteractiveObject | ||
| Dispatched at the beginning of a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call. | InteractiveObject | ||
| Dispatched during a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call. | InteractiveObject | ||
| Dispatched when the user activates the platform-specific accelerator key combination for a paste operation or selects 'Paste' from the text context menu. | InteractiveObject | ||
| Dispatched at the beginning of the component initialization sequence. | UIComponent | ||
| Dispatched when the user lowers an active stylus past the proximity detection threshold of the screen. | InteractiveObject | ||
| Dispatched when the user lifts an active stylus above the proximity detection threshold of the screen. | InteractiveObject | ||
| Dispatched when the user moves an active stylus over the screen while remaining within the proximity detection threshold. | InteractiveObject | ||
| Dispatched when the user moves an active stylus away from this InteractiveObject while remaining within the proximity detection threshold of the screen. | InteractiveObject | ||
| Dispatched when the user moves an active stylus directly above this InteractiveObject while remaining within the proximity detection threshold of the screen. | InteractiveObject | ||
| Dispatched when the user moves an active stylus away from this InteractiveObject and any of its children while remaining within the proximity detection threshold of the screen. | InteractiveObject | ||
| Dispatched when the user moves an active stylus over this InteractiveObject from outside the object's tree of descendents in the display list (while remaining within the proximity detection threshold of the screen). | InteractiveObject | ||
| Dispatched when a user releases the button on the pointing device after the user first pressed the button over an InteractiveObject instance and then moved the pointing device off of the InteractiveObject instance. | InteractiveObject | ||
| 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 a display object is about to be removed from the display list. | DisplayObject | ||
| 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 | ||
| [broadcast event] Dispatched when the display list is about to be updated and rendered. | DisplayObject | ||
| Dispatched when the component is resized. | UIComponent | ||
| Dispatched when a user presses and releases the right button of the user's pointing device over the same InteractiveObject. | InteractiveObject | ||
| Dispatched when a user presses the pointing device button over an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when a user releases the pointing device button over an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when the user moves a pointing device away from an InteractiveObject instance. | InteractiveObject | ||
| Dispatched when the user moves a pointing device over an InteractiveObject instance. | InteractiveObject | ||
| 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 | ||
| Dispatched when an object's state changes from invisible to visible. | UIComponent | ||
| Dispatched immediately after the soft keyboard is raised. | InteractiveObject | ||
| Dispatched immediately before the soft keyboard is raised. | InteractiveObject | ||
| Dispatched immediately after the soft keyboard is lowered. | InteractiveObject | ||
| 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 value of the object's tabChildren flag changes. | InteractiveObject | ||
| Dispatched when the object's tabEnabled flag changes. | InteractiveObject | ||
| Dispatched when the value of the object's tabIndex property changes. | InteractiveObject | ||
| Dispatched when a user enters one or more characters of text. | InteractiveObject | ||
| 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 | ||
| 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 | ||
| 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 | ||
| 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 the user touches the device, and is continuously dispatched until the point of contact is removed. | InteractiveObject | ||
| 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 | ||
| 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 | ||
| 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 outside the display object on a mobile phone or tablet with a touch screen). | InteractiveObject | ||
| 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 | ||
| 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 | ||
| 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 | ||
Styles
Styles are either common or associated with a specific theme. If the style is common, it can be used with any theme. If a style is associated with a specific theme, it can only be used if your application uses that theme.
Common Styles
Spark Theme Styles
Halo Theme Styles
Mobile Theme Styles
Public Constants
Property Detail
column | property |
column:GridColumn| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
The GridColumn object representing the column associated with this item renderer.
The default value is null.
This property can be used as the source for data binding. When this property is modified, it dispatches the columnChanged event.
Implementation
public function get column():GridColumn public function set column(value:GridColumn):voidcolumnIndex | property |
data | property |
data:Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
The value of the data provider item for the grid row
corresponding to the item renderer.
This value corresponds to the object returned by a call to the
dataProvider.getItemAt(rowIndex) method.
Item renderers can override this property definition to access the data for the entire row of the grid.
The default value is null.
This property can be used as the source for data binding. When this property is modified, it dispatches the dataChange event.
Implementation
public function get data():Object public function set data(value:Object):voiddown | property |
down:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
This property is set to true when one of two input gestures occurs within a
grid cell: either the mouse button or the touch screen is pressed.
The down property is reset to false when
the mouse button goes up, the user lifts off
the touch screen, or the mouse/touch is dragged out of the grid cell.
Unlike a List item renderer, grid item renderers do not have exclusive responsibility for displaying the down indicator. The Grid itself renders the down indicator for the selected row or cell. The item renderer can also change its visual properties to emphasize that it's being pressed.
The default value is false.
Implementation
public function get down():Boolean public function set down(value:Boolean):voiddragging | property |
dragging:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Contains true if the item renderer is being dragged,
typically as part of a drag and drop operation.
Currently, drag and drop is not supported by the Spark DataGrid control.
This property can be used as the source for data binding. When this property is modified, it dispatches the draggingChanged event.
Implementation
public function get dragging():Boolean public function set dragging(value:Boolean):voidgrid | property |
hovered | property |
hovered:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Contains true if the item renderer is under the mouse and
the Grid's selectionMode is GridSelectionMode.SINGLE_CELL or
GridSelectionMode.MULTIPLE_CELLS, or if the mouse is within the
row the item renderer belongs to and the Grid's selectionMode is
GridSelectionMode.SINGLE_ROW or
GridSelectionMode.MULTIPLE_ROWS.
Unlike a List item renderer, grid item renderers do not have exclusive responsibility for displaying something to indicate that the renderer or its row is under the mouse. The Grid itself automatically displays the hoverIndicator skin part for the hovered row or cell. Grid item renderers can also change their properties to emphasize that they're hovered.
The default value is false.
Implementation
public function get hovered():Boolean public function set hovered(value:Boolean):voidlabel | property |
label:String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
The String to display in the item renderer.
The GridItemRenderer class automatically copies the
value of this property to the text property
of its labelDisplay element, if that element was specified.
The Grid sets the label to the value returned by the column's
itemToLabel() method.
The default value is "".
This property can be used as the source for data binding. When this property is modified, it dispatches the labelChanged event.
Implementation
public function get label():String public function set label(value:String):voidlabelDisplay | property |
labelDisplay:spark.components.supportClasses:TextBase| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
An optional visual component in the item renderer
for displaying the label property.
If you use this property to specify a visual component,
the component's text property is kept synchronized
with the item renderer's label property.
The default value is null.
This property can be used as the source for data binding. When this property is modified, it dispatches the labelDisplayChanged event.
Implementation
public function get labelDisplay():spark.components.supportClasses:TextBase public function set labelDisplay(value:spark.components.supportClasses:TextBase):voidrowIndex | property |
rowIndex:int| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
The zero-based index of the row of the cell being rendered.
The default value is -1.
This property can be used as the source for data binding. When this property is modified, it dispatches the rowIndexChanged event.
Implementation
public function get rowIndex():int public function set rowIndex(value:int):voidselected | property |
selected:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Contains true if the item renderer's cell is part
of the current selection.
Unlike a List item renderer, grid item renderers do not have exclusive responsibility for displaying something to indicate that they're part of the selection. The Grid itself automatically displays the selectionIndicator skin part for the selected rows or cells. The item renderer can also change its visual properties to emphasize that it's part of the selection.
The default value is false.
This property can be used as the source for data binding. When this property is modified, it dispatches the selectedChanged event.
Implementation
public function get selected():Boolean public function set selected(value:Boolean):voidshowsCaret | property |
showsCaret:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Contains true if the item renderer's cell is indicated by the caret.
Unlike a List item renderer, grid item renderers do not have exclusive responsibility for displaying something to indicate their cell or row has the caret. The Grid itself automatically displays the caretIndicator skin part for the caret row or cell. The item renderer can also change its visual properties to emphasize that it has the caret.
The default value is false.
This property can be used as the source for data binding. When this property is modified, it dispatches the showsCaretChanged event.
Implementation
public function get showsCaret():Boolean public function set showsCaret(value:Boolean):voidConstructor Detail
GridItemRenderer | () | Constructor |
public function GridItemRenderer()| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Constructor.
Method Detail
discard | () | method |
public function discard(willBeRecycled:Boolean):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Called from the item renderer parent's updateDisplayList() method
when it has been determined that this renderer will no longer be visible.
If the willBeRecycled parameter is true,
then the owner adds this renderer to its internal free list for reuse.
Implementations can use this method to clear any renderer properties that are no longer needed.
This method is not intended to be called directly. It is called by the DataGrid implementation.
Parameters
willBeRecycled:Boolean — true if this renderer is going to be added
to the owner's internal free list for reuse.
|
getCurrentRendererState | () | method |
protected function getCurrentRendererState():String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Returns the name of the state to be applied to the renderer. For example, a basic item renderer returns the String "normal", "hovered", or "selected" to specify the renderer's state. If dealing with touch interactions (or mouse interactions where selection is ignored), "down" and "downAndSelected" can also be returned.
A subclass of GridItemRenderer must override this method to return a value if the behavior desired differs from the default behavior.
In Flex 4.0, the 3 main states were "normal", "hovered", and "selected". In Flex 4.5, "down" and "downAndSelected" have been added.
The full set of states supported (in order of precedence) are:
- dragging
- downAndSelected
- selectedAndShowsCaret
- hoveredAndShowsCaret
- normalAndShowsCaret
- down
- selected
- hovered
- normal
String — A String specifying the name of the state to apply to the renderer.
|
prepare | () | method |
public function prepare(hasBeenRecycled:Boolean):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Called from the item renderer parent's updateDisplayList() method
after all of the renderer's properties have been set.
The hasBeenRecycled parameter is false
if this renderer has not been used before, meaning it was not recycled.
This method is called when a renderer is about to become visible
and each time it's redisplayed because of a change in a renderer
property, or because a redisplay was explicitly requested.
This method can be used to configure all of a renderer's visual
elements and properties.
Using this method can be more efficient than binding data
properties to visual element properties.
Note: Because the prepare() method is called frequently,
make sure that it is coded efficiently.
The prepare() method may be called many times
before the discard() method is called.
This method is not intended to be called directly. It is called by the DataGrid implementation.
Parameters
hasBeenRecycled:Boolean — true if this renderer is being reused.
|
Event Detail
dataChange | Event |
Event Object Type:
property FlexEvent.type =
mx.events.FlexEventproperty FlexEvent.type =
mx.events.FlexEvent.DATA_CHANGE| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10, AIR 2.5 |
Dispatched when the data property changes.
FlexEvent.DATA_CHANGE constant defines the value of the
type property of the event object for a dataChange 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. |
Examples How to use this example
GridItemRendererExample.mxml
<?xml version="1.0" encoding="utf-8"?>
<!--
Demonstate how to control text wrapping in DataGrid GridItemRenderer item renderer.
This DataGrid example demonstrates how to control text wrapping with a simple custom item renderer
based on GridItemRenderer. All cells in this example display the same lengthy string which does
not contain newlines. Note that the Flex text components unconditionally render newline characters
that appear in the text.
The "Label Renderer" column's renderer is a custom GridItemRenderer that displays its text with
an s:Label component. We use the Label's maxDisplayedLines property to control line breaking
and to include "..." truncation when the single line of text doesn't fit.
Note also: this example's column widths and row heights are defined by the DataGrid's typicalItem.
The typical item uses explicit newlines to create a string that occupies three lines and a
reasonable column width.
-->
<s:Application
xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark">
<fx:Declarations>
<fx:String id="sampleText">Lorem Ipsum is the standard dummy text of the typesetting industry.</fx:String>
<fx:int id="maxDisplayedLines">0</fx:int>
</fx:Declarations>
<s:Panel title="Spark DataGrid Control Example which demonstrates how to control text wrapping in a GridItemRenderer"
width="75%" height="75%"
horizontalCenter="0" verticalCenter="0">
<s:controlBarContent>
<s:VGroup>
<s:CheckBox id="vrh" selected="@{dataGrid.variableRowHeight}"
label="dataGrid.variableRowHeight={vrh.selected}"/>
<s:CheckBox id="lb" selected="true"
valueCommit="maxDisplayedLines=(lb.selected) ? 0 : 1"
label="labelRenderer.maxDisplayedLines={maxDisplayedLines}"/>
</s:VGroup>
</s:controlBarContent>
<s:DataGrid id="dataGrid" variableRowHeight="false" verticalCenter="0" horizontalCenter="0">
<s:columns>
<s:ArrayList>
<!--
Simple custom item renderer based on GridItemRenderer and Label.
Prevent line breaking by setting maxDisplayedLines="1".
-->
<s:GridColumn dataField="value" headerText="Label Renderer">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer>
<s:Label id="labelDisplay"
left="5" top="9" right="5" bottom="5"
maxDisplayedLines="{outerDocument.maxDisplayedLines}"/>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
</s:ArrayList>
</s:columns>
<!--
The typicalItem defines column widths and the default row height. The text
occpies two lines because we've used '\n' to introduce two newlines.
Alternatively we could have used the odd XML ' ' escape to introduce
two newlines (the value of the newline character is decimal 10).
<s:DataItem value="Lorem Ipsum sample text. Lorem Ipsum sample text. "/>
-->
<s:typicalItem>
<s:DataItem value="{'Lorem Ipsum sample text.\nLorem Ipsum sample text\n'}"/>
</s:typicalItem>
<s:ArrayCollection>
<s:DataItem value="{sampleText}"/>
<s:DataItem value="{sampleText}"/>
<s:DataItem value="{sampleText}"/>
</s:ArrayCollection>
</s:DataGrid>
</s:Panel>
</s:Application>
GridItemRendererCustomBindingExample.mxml
<?xml version="1.0" encoding="utf-8"?>
<!--
Examples of custom GridItemRenderers that use data binding to configure visual properties.
The application's control bar slider can be used to change the the dataProvider items.
The GridItemRenderer class is a Group that implements
IGridItemRenderer and can be used as the top level "container" for a
custom item renderer. Its data property is the dataProvider item for
the row the item renderer appears on and its components can configure
themselves by binding to the data property, or by overriding the
renderer's prepare() method and configuring themselves imperatively
with ActionScript code. All of the item renderers in this example
use binding, which makes the code a little easier to read and modify.
It's also less efficient than using a prepare() method override. The
performance difference is most noticeable when the DataGrid is configured
so that a large number of item renderers are visible.
DataGrid item renderers are always sized to exactly fit the cell that
they're rendering: their size matches the width of their column and the height of their row.
The DataGrid enables interactive column resizing by default, so all of
the item renderers need to defend against the possibility that their
width will become arbitrarily small. The first column's item renderer
just contains a Label. By specifying maxDisplayedLines="1" we ensure
that the Label will truncate its text to fit the width it's given.
The other columns' item renderers specify
clipAndEnableScrolling="true" which just means that their fixed size
contents will always be clipped to the bounds of the GridItemRenderer.
This property -enables- scrolling, which means that one could actually
scroll the contents of the item renderers when their width gets small,
by setting the renderer's horizontalScrollPosition property. We
do not do as much here.
The "Name" column's item renderer demonstrates a special case: if the
renderer contains a text component with id="labelDisplay", GridItemRenderer
automatically sets the labelDisplay's text property to the value
of data[column.dataField] per the GridItemRenderer label property. The
first colunm also demonstrates using the styleName property to configure
the Label's left, right, top, and fontSize styles.
The "Statistics" column's item renderer demonstrates how binding can be used to
configure the geometry of graphic elememnts. The data items' min, max, and
value properties have been normalized to the range [0 100] to keep the bindings simple.
The "Value" column's item renderer allows one to change data item's value
property with a Slider.
The "Call" column's item renderer demonstrates a slightly more complicated component
layout and it also demonstates how the data item's value can be both displayed
and edited.
-->
<s:Application
xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark">
<fx:Script>
<![CDATA[
// Incrementally change all of the date items' min, max, value, and call properties.
private function changeData(delta:Number):void
{
for each (var item:Object in dataGrid.dataProvider)
{
item.value = (item.value + delta) % 100;
item.min = item.value * 0.5;
item.max = item.value + ((100 - item.value) * 0.5);
item.call = item.value > 50;
}
}
]]>
</fx:Script>
<fx:Style>
.nameColumn {
fontSize: 18;
left: 5;
right: 5;
top: 9;
}
</fx:Style>
<s:Panel title="Spark DataGrid Control Example of custom GridItemRenderers that use data binding to configure visual properties"
width="75%" height="75%"
horizontalCenter="0" verticalCenter="0">
<s:controlBarContent>
<s:HGroup verticalAlign="baseline">
<s:Label text="Shake Data"/>
<s:HSlider id="hsl" minimum="0" maximum="25" change="changeData(hsl.value)"/>
</s:HGroup>
</s:controlBarContent>
<s:DataGrid id="dataGrid" left="5" right="5" top="5" bottom="5">
<s:columns>
<s:ArrayList>
<!--
By specifying id="labelDisplay" the Label component's text property is automatically
set to the renderer's label, which is effectively the value of the item's name property.
We've used styleName here to refer to a set of styles that could have also have been set inline.
-->
<s:GridColumn dataField="name" headerText="Name">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer>
<s:Label id="labelDisplay" maxDisplayedLines="1" styleName="nameColumn"/>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
<!--
This column's renderer displays the item's value, min, and max properties with a simple dial
and bar chart defined with graphic primitives. The bar chart s:Rect elements specify
scaleY="-1" so that the rectangles grow from the bottom of the renderer upwards. To keep
things simple, most of the elements geometry is specified explicitly. Note also that
min, max, and value have all been normalized to [0, 100].
-->
<s:GridColumn dataField="value" headerText="Statistics">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer clipAndEnableScrolling="true">
<s:Group left="5" top="5" bottom="5">
<s:Ellipse x="0" y="0" width="30" height="30">
<s:stroke>
<s:SolidColorStroke color="0x272F32" weight="2"/>
</s:stroke>
<s:fill>
<s:SolidColor color="0x9DBDC6"/>
</s:fill>
</s:Ellipse>
<s:Line rotation="{(data.value / 100) * 360}" transformX="15" transformY="15"
xFrom="15" yFrom="15" xTo="27" yTo="15">
<s:stroke>
<s:SolidColorStroke color="0xFF3D2E" weight="3"/>
</s:stroke>
</s:Line>
<s:Rect x="40" y="30" scaleY="-1" width="15" height="{(data.min / 100) * 30}">
<s:fill>
<s:SolidColor color="0xFF3D2E"/>
</s:fill>
</s:Rect>
<s:Rect x="60" y="30" scaleY="-1" width="15" height="{(data.max / 100) * 30}">
<s:fill>
<s:SolidColor color="0xFF3D2E"/>
</s:fill>
</s:Rect>
</s:Group>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
<!--
This column's renderer displays the data item's value property with a slider. The binding is specified
with "@{data.value}", which indicates that it's bidirection, so changing the slider also changes
the dataProvider item.
-->
<s:GridColumn dataField="value" headerText="Value">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer clipAndEnableScrolling="true">
<s:HSlider left="5" right="5" verticalCenter="0"
minimum="{data.min}" maximum="{data.max}" value="@{data.value}"/>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
<!--
Display the boolean data item call property with a checkbox, radio button, and a text field. The
call value can be changed with the checkbox.
-->
<s:GridColumn dataField="call" headerText="Call">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer clipAndEnableScrolling="true">
<s:HGroup left="5" top="9" right="5" verticalAlign="baseline">
<s:CheckBox selected="@{data.call}"/>
<s:RadioButton selected="{data.call}" enabled="false"/>
<s:TextInput text="{data.call}" enabled="false"/>
</s:HGroup>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
</s:ArrayList>
</s:columns>
<s:ArrayCollection>
<s:DataItem min="10" max="85" value="15" name="Abrasive" price="100.11" call="false"/>
<s:DataItem min="15" max="75" value="25" name="Brush" price="110.01" call="true"/>
<s:DataItem min="30" max="65" value="45" name="Clamp" price="120.02" call="false"/>
<s:DataItem min="20" max="85" value="65" name="Drill" price="130.03" call="true"/>
<s:DataItem min="40" max="95" value="85" name="Epoxy" price="140.04" call="false"/>
<s:DataItem min="70" max="99" value="95" name="File" price="150.05" call="true"/>
<s:DataItem min="60" max="85" value="80" name="Gouge" price="160.06" call="false"/>
<s:DataItem min="40" max="70" value="60" name="Hook" price="170.07" call="true"/>
<s:DataItem min="10" max="40" value="20" name="Ink" price="180.08" call="false"/>
<s:DataItem min="5" max="30" value="10" name="Jack" price="190.09" call="true"/>
</s:ArrayCollection>
</s:DataGrid>
</s:Panel>
</s:Application>
GridItemRendererCustomPrepareExample.mxml
<?xml version="1.0" encoding="utf-8"?>
<!--
Examples of custom GridItemRenderers that use the prepare() method to configure visual properties.
This example is identical to DataGridCustomBindingRenderer.as except that instead of using
data bindings, all visual elements are configured by GridItemRenderer/prepare() method
overrides.
-->
<s:Application
xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark">
<fx:Script>
<![CDATA[
// Incrementally change all of the date items' min, max, value, and call properties.
private function changeData(delta:Number):void
{
for each (var item:Object in dataGrid.dataProvider)
{
item.value = (item.value + delta) % 100;
item.min = (item.min + delta) % 100;
item.max = (item.max + delta) % 100;
item.call = item.value > 50;
}
}
]]>
</fx:Script>
<fx:Style>
.nameColumn {
fontSize: 18;
left: 5;
right: 5;
top: 9;
}
</fx:Style>
<s:Panel title="Spark DataGrid Control Example of custom GridItemRenderers that use the prepare() method to configure visual properties"
width="75%" height="75%"
horizontalCenter="0" verticalCenter="0">
<s:controlBarContent>
<s:HGroup verticalAlign="baseline">
<s:Label text="Shake Data"/>
<s:HSlider id="hsl" minimum="0" maximum="50" change="changeData(hsl.value)"/>
</s:HGroup>
</s:controlBarContent>
<s:DataGrid id="dataGrid" left="5" right="5" top="5" bottom="5">
<s:columns>
<s:ArrayList>
<s:GridColumn dataField="name" headerText="Name">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer>
<fx:Script>
<![CDATA[
override public function prepare(hasBeenRecycled:Boolean):void
{
nameLabel.text = data.name;
}
]]>
</fx:Script>
<s:Label id="nameLabel" maxDisplayedLines="1" styleName="nameColumn"/>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
<s:GridColumn dataField="value" headerText="Statistics">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer clipAndEnableScrolling="true">
<fx:Script>
<![CDATA[
override public function prepare(hasBeenRecycled:Boolean):void
{
valueDial.rotation = (data.value / 100) * 360;
minBar.height = (data.min / 100) * 30;
maxBar.height = (data.max / 100) * 30;
}
]]>
</fx:Script>
<s:Group left="5" top="5" bottom="5">
<s:Ellipse x="0" y="0" width="30" height="30">
<s:stroke>
<s:SolidColorStroke color="0x272F32" weight="2"/>
</s:stroke>
<s:fill>
<s:SolidColor color="0x9DBDC6"/>
</s:fill>
</s:Ellipse>
<s:Line id="valueDial" transformX="15" transformY="15"
xFrom="15" yFrom="15" xTo="27" yTo="15">
<s:stroke>
<s:SolidColorStroke color="0xFF3D2E" weight="3"/>
</s:stroke>
</s:Line>
<s:Rect id="minBar" x="40" y="30" scaleY="-1" width="15">
<s:fill>
<s:SolidColor color="0xFF3D2E"/>
</s:fill>
</s:Rect>
<s:Rect id="maxBar" x="60" y="30" scaleY="-1" width="15">
<s:fill>
<s:SolidColor color="0xFF3D2E"/>
</s:fill>
</s:Rect>
</s:Group>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
<s:GridColumn dataField="value" headerText="Value">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer clipAndEnableScrolling="true">
<fx:Script>
<![CDATA[
override public function prepare(hasBeenRecycled:Boolean):void
{
valueSlider.minimum = data.min;
valueSlider.maximum = data.max;
valueSlider.value = data.value;
}
private function valueChange():void
{
data.value = valueSlider.value;
}
]]>
</fx:Script>
<s:HSlider id="valueSlider" left="5" right="5" verticalCenter="0" change="valueChange()"/>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
<s:GridColumn dataField="call" headerText="Call">
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer clipAndEnableScrolling="true">
<fx:Script>
<![CDATA[
override public function prepare(hasBeenRecycled:Boolean):void
{
callCheckBox.selected = data.call;
callRadioButton.selected = data.call;
callTextInput.text = String(data.call);
}
private function valueChange():void
{
data.call = callCheckBox.selected;
}
]]>
</fx:Script>
<s:HGroup left="5" top="9" right="5" verticalAlign="baseline">
<s:CheckBox id="callCheckBox" change="valueChange()"/>
<s:RadioButton id="callRadioButton" enabled="false"/>
<s:TextInput id="callTextInput" enabled="false"/>
</s:HGroup>
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
</s:ArrayList>
</s:columns>
<s:ArrayCollection>
<s:DataItem min="10" max="85" value="15" name="Abrasive" price="100.11" call="false"/>
<s:DataItem min="15" max="75" value="25" name="Brush" price="110.01" call="true"/>
<s:DataItem min="30" max="65" value="45" name="Clamp" price="120.02" call="false"/>
<s:DataItem min="20" max="85" value="65" name="Drill" price="130.03" call="true"/>
<s:DataItem min="40" max="95" value="85" name="Epoxy" price="140.04" call="false"/>
<s:DataItem min="70" max="99" value="95" name="File" price="150.05" call="true"/>
<s:DataItem min="60" max="85" value="80" name="Gouge" price="160.06" call="false"/>
<s:DataItem min="40" max="70" value="60" name="Hook" price="170.07" call="true"/>
<s:DataItem min="10" max="40" value="20" name="Ink" price="180.08" call="false"/>
<s:DataItem min="5" max="30" value="10" name="Jack" price="190.09" call="true"/>
</s:ArrayCollection>
</s:DataGrid>
</s:Panel>
</s:Application>
Wed Nov 21 2018, 06:34 AM -08:00