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DraggablePie

Package | flexlib.charts
Class | public class DraggablePie
Inheritance | DraggablePie mx.core.UIComponent

The DraggablePie is used to allow users of your application to drag around the pie slices in a pie chart. The chart allows you to set a data provider that implements the ICollectionView interface. It provides styles for its own "tooltips" as well as the typical font styles and disabled styles. The chart is useable from MXML or from AS3.

Public Properties

| Property | Defined By
--- | --- | ---
|  | colorField : String Used to determine which field on the objects in the data provider is the field that contains the color to be used when drawing the pie slice. | DraggablePie
|  | dataField : String Used to determine which field on the objects in the data provider is the field that contains the data. | DraggablePie
|  | dataProvider : Object The dataProvider is used to control what data the chart will draw. | DraggablePie
|  | labelField : String Used to determine which field on the objects in the data provider is the field that contains the label to be used on the tooltips. | DraggablePie
|  | liveDragging : Boolean Determines whether or not to dispatch change events as the mouse moves or just when the mouse is released | DraggablePie
|  | numDecimals : Number Number of decimals to show in tooltip | DraggablePie
|  | percentRadius : Number The percent radius is used to figure out how large the radius should be. | DraggablePie
|  | sensitivityAngle : Number Used to determine how much leeway to give when clicking on a line or not. | DraggablePie
|  | tooltipTextFunction : Function Used to replace tooltip text without sub-classing the object. | DraggablePie

Protected Properties

| Property | Defined By
--- | --- | ---
|  | angles : Array An ordered array of the angles of all edges in the pie chart | DraggablePie

Public Methods

| Method | Defined By
--- | --- | ---
|  | DraggablePie() | DraggablePie
|  | styleChanged(styleProp:String):void [override] | DraggablePie

Protected Methods

| Method | Defined By
--- | --- | ---
|  | commitProperties():void [override] | DraggablePie
|  | createTooltip(series:Object):IToolTip This method creates a tooltip blurb for the series specified. | DraggablePie
|  | getTooltipTextForSeries(series:Object):String This function returns a string to be displayed by a tooltip for a particular data object. | DraggablePie
|  | hideCursor():void This function hides the finger cursor when the user is hovering over an edge. | DraggablePie
|  | showCursor():void This function shows a finger cursor when the user is hovering over an edge. | DraggablePie
|  | updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void [override] | DraggablePie

Events

| Event | Summary | Defined By
--- | --- | --- | ---
|  | change | Dispatched when the data changes according to the . | DraggablePie

Styles

| Style | Description | Defined By
--- | --- | --- | ---
|  | disabledAlpha | Type: Number CSS Inheritance: no Defines the alpha to use for the pie chart when the chart is disabled The default value is`0.5`. | DraggablePie
|  | disabledLineColor | Type: uint CSS Inheritance: no Defines the color to use for the lines on the pie chart when the chart is disabled The default value is`0xAAAAAA`. | DraggablePie
|  | lineColor | Type: uint CSS Inheritance: no Defines the color to use for the lines on the pie chart The default value is`0x333333`. | DraggablePie

Property Detail

angles | property

`protected var angles:Array`

An ordered array of the angles of all edges in the pie chart

colorField | property |

`colorField:String`

Used to determine which field on the objects in the data provider is the field that contains the color to be used when drawing the pie slice.

The default value is `"color"`.

This property can be used as the source for data binding.

Implementation
`public function get colorField():String`
`public function set colorField(value:String):void`

dataField | property |

`dataField:String`

Used to determine which field on the objects in the data provider is the field that contains the data.

The default value is `"data"`.

This property can be used as the source for data binding.

Implementation
`public function get dataField():String`
`public function set dataField(value:String):void`

dataProvider | property |

`dataProvider:Object`

The dataProvider is used to control what data the chart will draw. Each object in it represents a pie slice. It is internally casted to type ICollectionView. If you pass an Array it will be convered to an ArrayCollection. If you pass an Object it is converted to an ArrayCollection with the object as the first element

This property can be used as the source for data binding.

Implementation
`public function get dataProvider():Object`
`public function set dataProvider(value:Object):void`

labelField | property |

`labelField:String`

Used to determine which field on the objects in the data provider is the field that contains the label to be used on the tooltips.

The default value is `"label"`.

This property can be used as the source for data binding.

Implementation
`public function get labelField():String`
`public function set labelField(value:String):void`

liveDragging | property |

`liveDragging:Boolean`

Determines whether or not to dispatch change events as the mouse moves or just when the mouse is released

The default value is `true`.

This property can be used as the source for data binding.

Implementation
`public function get liveDragging():Boolean`
`public function set liveDragging(value:Boolean):void`

numDecimals | property |

`numDecimals:Number`

Number of decimals to show in tooltip

The default value is `2`.

This property can be used as the source for data binding.

Implementation
`public function get numDecimals():Number`
`public function set numDecimals(value:Number):void`

percentRadius | property |

`percentRadius:Number`

The percent radius is used to figure out how large the radius should be. The value 100% uses the the minimum of the width or the height divided by 2

The default value is `100`.

This property can be used as the source for data binding.

Implementation
`public function get percentRadius():Number`
`public function set percentRadius(value:Number):void`

sensitivityAngle | property |

`sensitivityAngle:Number`

Used to determine how much leeway to give when clicking on a line or not. The angle is expressed in radians.

The default value is `5 Degrees`.

This property can be used as the source for data binding.

Implementation
`public function get sensitivityAngle():Number`
`public function set sensitivityAngle(value:Number):void`

tooltipTextFunction | property |

`tooltipTextFunction:Function`

Used to replace tooltip text without sub-classing the object. Function must be of signature function(series:Object):String This function will override the numDecimals property.

The default value is `null`.

This property can be used as the source for data binding.

Implementation
`public function get tooltipTextFunction():Function`
`public function set tooltipTextFunction(value:Function):void`
Constructor Detail

DraggablePie | () | Constructor

`public function DraggablePie()`

Method Detail

commitProperties | () | method

`override protected function commitProperties():void`

createTooltip | () | method |

`protected function createTooltip(series:Object):IToolTip`

This method creates a tooltip blurb for the series specified.

Parameters

| `series:Object` — The data object to make the tooltip for.

Returns

| `IToolTip` — ITooltip The tooltip which was created.

getTooltipTextForSeries | () | method |

`protected function getTooltipTextForSeries(series:Object):String`

This function returns a string to be displayed by a tooltip for a particular data object.

Parameters

| `series:Object` — The object to create the tooltip text for

Returns

| `String`

hideCursor | () | method |

`protected function hideCursor():void`

This function hides the finger cursor when the user is hovering over an edge.

showCursor | () | method |

`protected function showCursor():void`

This function shows a finger cursor when the user is hovering over an edge.

styleChanged | () | method |

`override public function styleChanged(styleProp:String):void`

Parameters

| `styleProp:String`

updateDisplayList | () | method |

`override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void`

Parameters

| `unscaledWidth:Number`
| `unscaledHeight:Number`

Event Detail

change | Event

Event Object Type: `flash.events.Event`
Event.type property = `flash.events.Event.CHANGE`

Dispatched when the data changes according to the . <codeph>liveDragging</codeph> property.

Dimanche Juin 19 2011, 03:12 PM +02:00