BarGradientChartConfig class

Each bar is filled with a vertical gradient. Clicking a bar selects it (highlighted with a brighter gradient + border). Fires onBarTap.

JSON:

{ "type": "barGradient",
  "categories": ["Q1","Q2","Q3","Q4"],
  "gradientStart": "#42A5F5", "gradientEnd": "#0D47A1",
  "series": [{ "data": [120,200,150,80] }] }
Inheritance

Constructors

BarGradientChartConfig({required List<String> categories, required List<Series> series, ChartTheme theme = ChartTheme.light, String gradientStart = '#42A5F5', String gradientEnd = '#0D47A1', double barWidthRatio = 0.6, bool showValues = true, void onBarTap(int index, double value)?, TitlesData? title, ChartTooltip? tooltip, ChartLegend? legend, ChartToolbox? toolbox, GridData? grid})
BarGradientChartConfig.fromJson(Map<String, dynamic> j)
factory

Properties

apiContract → ChartApiContract
Shared API contract for all config-driven chart families.
no setterinherited
barWidthRatio → double
final
categories → List<String>
final
controller → ChartController?
finalinherited
gradientEnd → String
final
gradientStart → String
final
grid → GridData?
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
legend → ChartLegend?
finalinherited
onBarTap → void Function(int index, double value)?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
series → List<Series>
finalinherited
showValues → bool
final
theme → ChartTheme
final
title → TitlesData?
finalinherited
toolbox → ChartToolbox?
finalinherited
tooltip → ChartTooltip?
finalinherited
type → ChartType
finalinherited
xAxisConfig → ChartAxisConfig?
finalinherited
yAxisConfig → ChartAxisConfig?
finalinherited

Methods

buildChart() → Widget
Method to create the appropriate chart widget
override
getMaxSeriesValue() → double
Safe maximum value with 10% headroom.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
supportsApiField(String field) → bool
inherited
toJson() → Map<String, dynamic>
Convert configuration to JSON
override
toString() → String
A string representation of this object.
inherited
withController(ChartController controller) → BaseChartConfig
Override in concrete configs to return a controller-attached copy.
inherited
withTheme(ChartTheme theme) → BaseChartConfig
Override in concrete configs to return a themed copy.
inherited

Operators

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