TSparkline class

A lightweight, high-performance inline sparkline chart for KPI metric tiles, data table cells, and analytical dashboards.

Inheritance
Available extensions

Constructors

TSparkline({Key? key, required List<double> data, TSparklineType type = TSparklineType.area, Color? color, List<Color>? fillGradient, double lineWidth = 2.0, bool smooth = true, bool showEndDot = true, bool showMinMaxDots = false, double height = 40.0, double? width = 100.0})
const

Properties

color → Color?
Primary color for the sparkline stroke or bars. If null, green is used if data ends higher than start, otherwise red/primary.
final
data → List<double>
Numerical data points.
final
fillGradient → List<Color>?
Custom fill colors for area gradient.
final
hashCode → int
The hash code for this object.
no setterinherited
height → double
Height of the sparkline canvas. Defaults to 40.0.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
lineWidth → double
Stroke width for line and area charts. Defaults to 2.0.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
showEndDot → bool
Whether to render a highlighted pulse dot on the most recent (last) data point. Defaults to true.
final
showMinMaxDots → bool
Whether to render dot indicators on the minimum and maximum data points. Defaults to false.
final
smooth → bool
Whether to apply smooth cubic bezier curve interpolation instead of straight segments. Defaults to true.
final
type → TSparklineType
The visual chart style: line, area, or bar. Defaults to TSparklineType.area.
final
width → double?
Width of the sparkline canvas. Defaults to 100.0.
final

Methods

box({double minW = 0.0, double minH = 0.0, double maxW = double.infinity, double maxH = double.infinity}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a ConstrainedBox to apply layout constraints.
build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
center({bool when = true}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Center widget.
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
expanded({int flex = 1}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in an Expanded widget.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
padding([double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0]) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Padding with flexible edge control.
paddingSymmetric({double h = 0.0, double v = 0.0}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Padding with symmetric horizontal and vertical spacing.
size({double? w, double? h}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a SizedBox to apply fixed width and/or height.
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
visible(bool visible, {bool maintainState = false}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Visibility widget.
when(bool condition) → Widget

Available on Widget, provided by the WidgetX extension

Returns this widget if condition is true, otherwise returns SizedBox.shrink(). Usage: Text('Hello').when(isVisible)

Operators

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