PieChartComponent class - graph library

Constructors

PieChartComponent.new(RenderComponent parent, String id, {double maxLabelWidth = 50, double pointIntervalRadiusWidth = 20, String css = 'pie', double gridLineWidth = 1, double aspectRatio = 1.5, double textMargin = 15, String gridLineStrokeStyle = '#d7d7d7', String labelFillStyle = '#ffffff', String labelFontStyle = '14px sans-serif', String captionBgColor = '#2d2d2d', String captionFgColor = 'white', String captionFontFamily = 'sans-serif'})

Properties

aspectRatio → double: The width/height ratio of this canvas. The canvas height, everytime it is redrawn, changes based on the canvas clientWidth. The height follows the width depending on the ratio: height = width/aspectRatio.
finalinherited
baseInnerElement → Element?: no setterinherited
baseInnerHtml ↔ String: Unlike RenderComponent, setting the baseInnerHtml does not update baseInnerElement, because this component is not designed +to be rendered independently. You need to reprint the component to the parent's component (update its baseInnerHtml with this component string asString), and re-attach it with _attachToRenderComponent again.
getter/setter pairinherited
captionBgColor → String: The caption background color.
finalinherited
captionFgColor → String: The caption foreground color (the text color).
finalinherited
captionFontFamily → String: The caption font family.
finalinherited
chartFillStyle ↔ Map<String, Color>: Chart fill style.
getter/setter pair
dataPoints ↔ Map<String, double>: getter/setter pair
drawGridY → bool: Whether to draw Y grid lines.
finalinherited
elem → Element: Returns the DOM Element of this component by doing querySelector('$id').
no setterinherited
gridLineStrokeStyle → String: The line stroke style for the canvas grid.
finalinherited
gridLineWidth → double: The line width used to draw canvas grid.
finalinherited
hashCode → int: The hash code for this object.
no setterinherited
htmlElem → HTMLElement: no setterinherited
id ↔ String: Setting the component with new ID is basically not recommended. It will change the real HTML ID of this element rendered in DOM too, and will throw ComponentDuplicateIdException when the new ID already exists.
getter/setter pairinherited
labelFillStyle → String: The label texts color style.
finalinherited
labelFontStyle → String: The labels font style.
finalinherited
mathMlElem → MathMLElement: no setterinherited
maxLabelWidth → double: The maximum width for label texts in X axis.
final
parent → RenderComponent: no setterinherited
pointIntervalRadiusWidth ↔ double: The width interval (radius) for each grid.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
svgElem → SVGElement: no setterinherited
textMargin → double: The distance between label text to the grid.
finalinherited

Methods

addOnChangeTo(Element node, void onChange(Event)) → void: Creates an onChange event on node (has to be an Element or Document type). Call this in loadEventHandlers.
inherited
addOnClickTo(Element node, void onClick(Event)) → void: Creates an onClick event on node (has to be an Element or Document type). Call this in loadEventHandlers.
inherited
addSubscription(StreamSubscription subs) → void: A generic method to add an event subscription which will also get cancelled when unloadEventHandlers is called.
inherited
addSubscriptions(Iterable<StreamSubscription> subs) → void: A generic method to add (bulk) event subscriptions which will also get cancelled when unloadEventHandlers is called.
inherited
assertDuplicateId(String id) → void: inherited
assertElementAttached() → void: inherited
clearPoints() → void: override
contains(Node node) → bool: Contains checks whether a node is contained in this component. Can only be used by StringComponent if the component has been attached.
inherited
drawDataPoints() → void: override
drawGrid([bool drawY = true]) → void: override
drawLabels() → void: override
hideGraph(String graphId) → void
isRendered() → bool: Check if the component is rendered at DOM or not.
inherited
lerp(num x, num x1, num x2, num y1, num y2) → double: Linear interpolate x between two points (x1, y1) and (x2, y2).
inherited
loadEventHandlers() → void: Loads this component event handlers. Call super to check whether this component has been attached. If it hasn't, it will throw ComponentNotRenderedException.
override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onComponentAttached() → void: Called when this component has been attached to a parent RenderComponent.
override
queryByClass(String elemClass) → NodeList: Does elem.querySelectorAll(.elemClass) to select all element that have matched class.
inherited
queryById(String id) → Element?: Does elem.querySelector(#id) to select an element under this component.
inherited
redraw() → void
showGraph(String graphId) → void
toString() → String: Returns this component representation as HTML string that you can use inside other component's baseInnerHtml.
inherited
unloadEventHandlers() → void: Unloads this component event handlers. Call super to check whether this component has been attached. If it hasn't, it will throw ComponentNotRenderedException.
override

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Constants

keyAllGraph → const String