LinearGauge class

Creates a LinearGauge Widget to display the values in a linear scale. The widget can be customized using the properties available in LinearGauge.

LinearGauge(
  steps: 2,
  start: 0,
  end: 100,
  rulers: RulerStyle(
          rulerPosition : RulerPosition.bottom,
      ),
 ),

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• LinearGauge

Constructors

LinearGauge({Key? key, double? start = 0, double? end = 100, double? steps = 0, @Deprecated('Use ValueBar instead') double? value = 0, GaugeOrientation? gaugeOrientation = GaugeOrientation.horizontal, bool? showLinearGaugeContainer = true, LinearGaugeBoxDecoration? linearGaugeBoxDecoration = const LinearGaugeBoxDecoration(), double? labelTopMargin = 0.0, required RulerStyle? rulers, List<RangeLinearGauge>? rangeLinearGauge = const [], List<CustomRulerLabel>? customLabels = const [], ValueBarPosition? valueBarPosition = ValueBarPosition.center, List<ValueBar>? valueBar = const [], List<BasePointer>? pointers = const [], bool enableGaugeAnimation = false, double? extendLinearGauge = 0, bool fillExtend = false, double animationGap = 0, int animationDuration = 1000, Curve animationType = Curves.ease, List<CustomCurve>? curves = const []})

LinearGauge is a visualization of measurement widget with a linear scale values. LinearGauge as rich sets of config parameters which can be modified as per requirement

Properties

animationDuration → int

Specifies the load time animation duration with enableAnimation. Duration is defined in milliseconds.

final

animationGap → double

animationGap sets the duration gap b/w the gauge animations and other pointer or value bar animations .

final

animationType → Curve

Specifies the animation type of pointers.

final

curves → List<CustomCurve>?

curves takes the list of CustomCurve to render the curves in LinearGauge

final

customLabels → List<CustomRulerLabel>?

customLabels allows for the creation of custom tick labels on the gauge's scale, enabling the display of non-standard values or units, and allowing for more specific labelling of the gauge's range

final

enableGaugeAnimation → bool

enableAnimation will enable animations for pointers and value bars. It's default to false.

final

end → double?

end Sets the ending label of the LinearGauge Container This will be overridden when users add CustomRulerLabel the last value from the list will be used as end

final

extendLinearGauge → double?

extendLinearGauge Sets the rulers & labels away from the ending points of LinearGauge Container

final

fillExtend → bool

fillExtend Sets the fill of extendedLinearGauge according to nearest range or value bar color. It's default to false.

final

gaugeOrientation → GaugeOrientation?

gaugeOrientation sets the LinearGauge orientation to horizontal or vertical

final

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

labelTopMargin → double?

Warning:deprecated

final

linearGaugeBoxDecoration → LinearGaugeBoxDecoration?

linearGaugeBoxDecoration sets the styles of Container using LinearGaugeBoxDecoration decoration properties

final

pointers → List<BasePointer>?

pointers takes the list of Pointer to render the value pointer/s

final

rangeLinearGauge → List<RangeLinearGauge>?

rangeLinearGauge takes the list of RangeLinearGauge to render the ranges in LinearGauge

final

rulers → RulerStyle?

rulerStyle sets the styles of label using RulerStyle properties

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

showLinearGaugeContainer → bool?

showLinearGaugeContainer controls the LinearGauge Container render

final

start → double?

start Sets the starting label of the LinearGauge Container This will be overridden when users add CustomRulerLabel, the first value from the list will be used as start

final

steps → double?

steps Sets the interval between label of the LinearGauge Container

final

value → double?

@deprecated Value replaced by valueBar property

final

valueBar → List<ValueBar>?

valueBar takes the list of ValueBar to render the value bar/s

final

valueBarPosition → ValueBarPosition?

valueBarPosition sets the position of the value bar from the LinearGauge default is to valueBarPosition =ValueBarPosition.center`

final

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → State<LinearGauge>

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}) → 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