FluentAnnotationOnlyChart class

A chart made of annotations alone: no axes, no legend, no marks.

The package exports it and the annotations layer requires it, even though the storybook sidebar omits it. It exists because the Plotly adapter produces figures whose only content is annotations (AnnotationOnlyChart.types.ts:14, :22, :30).

Every annotation whose coordinates resolve in data space is dropped: the context supplies no scales (AnnotationOnlyChart.tsx:139-143), so resolveDataCoordinate returns nothing and the layer skips the annotation silently. Only relative and pixel coordinates render here.

Upstream's two-pass measure — an unmeasured annotation is laid out at 180 x 60 on the first frame and snaps once a hidden measurement div reports (ChartAnnotationLayer.tsx:446-467, :535-536, :607-633) — has no analogue here, because FluentChartAnnotationLayer measures its children synchronously during layout. The 180 x 60 fallback and the JSON measurement-signature cache are therefore both absent.

Inheritance

Constructors

FluentAnnotationOnlyChart({Key? key, required List<FluentChartAnnotation> annotations, String? chartTitle, String? description, double? width, double? height, Color? paperBackgroundColor, Color? plotBackgroundColor, Color? fontColor, String? fontFamily, FluentChartMargins? margin, FluentAnnotationOnlyChartStyle? style})
Creates an annotation-only chart.
const

Properties

annotations → List<FluentChartAnnotation>
The annotations to place.
final
chartTitle → String?
Optional heading above the content box. Rendered but hidden from assistive technology (AnnotationOnlyChart.tsx:190).
final
description → String?
Preferred accessible name, taking precedence over chartTitle (AnnotationOnlyChart.tsx:169).
final
fontColor → Color?
Overrides the text colour (AnnotationOnlyChart.tsx:153).
final
fontFamily → String?
Overrides the font family (AnnotationOnlyChart.tsx:154).
final
hashCode → int
The hash code for this object.
no setterinherited
height → double?
Hard height. Null resolves to the style's 650 (AnnotationOnlyChart.tsx:92).
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
margin → FluentChartMargins?
Converted to padding on the outer box (AnnotationOnlyChart.tsx:14-29).
final
paperBackgroundColor → Color?
Overrides the outer background (AnnotationOnlyChart.tsx:152).
final
plotBackgroundColor → Color?
Overrides the content-box background (AnnotationOnlyChart.tsx:162).
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
style → FluentAnnotationOnlyChartStyle?
Style layered over the derived defaults and the nearest FluentAnnotationOnlyChartTheme.
final
width → double?
Hard width. Null honours the incoming constraints.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

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