SplineChartWidget class

A modern spline chart widget with smooth curves and gradient fills.

Spline charts are similar to line charts but use smooth bezier curves to connect data points, creating a more fluid visualization.

Features

Multiple data series support
Smooth bezier curves
Gradient area fills
Interactive point tapping
Loading and error states
Full theme support

Example

SplineChartWidget(
  dataSets: [
    ChartDataSet(
      label: 'Sales',
      color: Colors.blue,
      dataPoints: [
        ChartDataPoint(x: 0, y: 10),
        ChartDataPoint(x: 1, y: 20),
      ],
    ),
  ],
  theme: ChartTheme.light(),
  title: 'Sales Trend',
)

Inheritance

Constructors

SplineChartWidget({Key? key, required List<ChartDataSet> dataSets, ChartTheme? theme, double lineWidth = 3.0, bool showArea = true, bool showPoints = true, bool showGrid = true, bool showAxis = true, bool showLabel = true, String? title, String? subtitle, bool useGlassmorphism = false, bool useNeumorphism = false, ChartPointCallback? onPointTap, ChartPointHoverCallback? onPointHover, bool isLoading = false, bool isError = false, String? errorMessage})

Properties

dataSets → List<ChartDataSet>: final
errorMessage → String?: final
hashCode → int: The hash code for this object.
no setterinherited
isError → bool: final
isLoading → bool: final
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
lineWidth → double: final
onPointHover → ChartPointHoverCallback?: final
onPointTap → ChartPointCallback?: final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
showArea → bool: final
showAxis → bool: final
showGrid → bool: final
showLabel → bool: final
showPoints → bool: final
subtitle → String?: final
theme → ChartTheme?: final
title → String?: final
useGlassmorphism → bool: final
useNeumorphism → bool: final

Methods

createElement() → StatefulElement: Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<SplineChartWidget>: Creates the mutable state for this widget at a given location in the tree.
override
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