ChartWidgetController class

Controls export for a mounted ChartWidget via its repaintBoundaryKey.

Constructors

ChartWidgetController()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

repaintBoundaryKey → GlobalKey<State<StatefulWidget>>

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

exportPdf({String? title, String? subtitle, double pixelRatio = 3, PdfPageFormat pageFormat = PdfPageFormat.a4}) → Future<Uint8List>

PDF with an embedded chart image and optional header text.

exportPdfFromConfig(ChartConfig config, {double pixelRatio = 3, PdfPageFormat pageFormat = PdfPageFormat.a4}) → Future<Uint8List>

Convenience: export using config title / subtitle when not overridden.

exportPng({double pixelRatio = 3}) → Future<Uint8List>

PNG bytes of the chart canvas (excludes overlay tooltips).

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

registerPrepareExport(VoidCallback prepare) → void

toString() → String

A string representation of this object.

inherited

unregisterPrepareExport() → void

Operators

operator ==(Object other) → bool

The equality operator.

inherited