LinearCustomPainter class abstract

Inheritance
Implementers

Constructors

LinearCustomPainter({required double minValue, required double maxValue, required double actualValue, required int decimalPlaces, required int divisions, required Text title, required TitlePosition titlePosition, required GaugeOrientation gaugeOrientation, required Color pointerColor, required Icon pointerIcon, required double gaugeStrokeWidth, required double rangeStrokeWidth, required double majorTickStrokeWidth, required double minorTickStrokeWidth, required TextStyle actualValueTextStyle, required TextStyle majorTicksValueTextStyle})

Properties

actualValue → double
Sets the pointer value of the gauge.
final
actualValueTextStyle → TextStyle
Sets the TextStyle for the actualValue.
final
decimalPlaces → int
Controls how much decimal places will be shown for the minValue,maxValue and actualValue.
final
divisions → int
Sets the major divisions of the gauges.
final
gaugeOrientation → GaugeOrientation
Orient the gauge vertically or horizontally.
final
gaugeStrokeWidth → double
Sets the stroke width of the gauge.
final
hashCode → int
The hash code for this object.
no setterinherited
majorTickStrokeWidth → double
Sets the stroke width of the majorTicks
final
majorTicksValueTextStyle → TextStyle
Sets the TextStyle for the majorTicksValue.
final
maxValue → double
Sets the maximum value of the gauge.
final
minorTickStrokeWidth → double
Sets the stroke width of the minorTicks
final
minValue → double
Sets the minimum value of the gauge.
final
pointerColor → Color
Sets the color of the pointer
final
pointerIcon ↔ Icon
Sets the pointer icon of the gauge.
getter/setter pair
rangeStrokeWidth → double
Sets the stroke width of the ranges.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semanticsBuilder → SemanticsBuilderCallback?
Returns a function that builds semantic information for the picture drawn by this painter.
no setterinherited
title → Text
Sets the title of the gauge.
final
titlePosition → TitlePosition
Sets the position of the title.
final

Methods

addListener(VoidCallback listener) → void
Register a closure to be notified when it is time to repaint.
inherited
drawActualValue(Canvas canvas, Size size) → void
Draws the gauge actual value
drawGaugePointer(Canvas canvas, Size size) → void
Draws the main scale of the Gauge
drawGaugeScale(Canvas canvas, Size size) → void
Draws the main scale of the Gauge
drawMajorTickMarks({required Canvas canvas, required Size size}) → void
drawMajorTicksValue({required Canvas canvas, required Size size}) → void
drawMinorTickMarks({required Canvas canvas, required Size size}) → void
drawPointerIcon(Canvas canvas, Size size) → void
Draws the gauge pointer icon
drawTitle(Canvas canvas, Size size) → void
endRotation(Canvas canvas) → void
getActualValuePosition(Size size) → double
getScaleInterval(Size size) → double
Find the distance between each majorTicks.
getScaleLength(Size size) → double
find the length of the scale
getScaleLowerLimit(Size size) → double
find scale lowest value
getScaleUpperLimit(Size size) → double
find scale highest value
hitTest(Offset position) → bool?
Called whenever a hit test is being performed on an object that is using this custom paint delegate.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
paint(Canvas canvas, Size size) → void
Called whenever the object needs to paint. The given Canvas has its coordinate space configured such that the origin is at the top left of the box. The area of the box is the size of the size argument.
override
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies when it is time to repaint.
inherited
shouldRebuildSemantics(covariant CustomPainter oldDelegate) → bool
Called whenever a new instance of the custom painter delegate class is provided to the RenderCustomPaint object, or any time that a new CustomPaint object is created with a new instance of the custom painter delegate class (which amounts to the same thing, because the latter is implemented in terms of the former).
inherited
shouldRepaint(covariant CustomPainter oldDelegate) → bool
Called whenever a new instance of the custom painter delegate class is provided to the RenderCustomPaint object, or any time that a new CustomPaint object is created with a new instance of the custom painter delegate class (which amounts to the same thing, because the latter is implemented in terms of the former).
inherited
startRotation(Canvas canvas, Size size) → void
toString() → String
A string representation of this object.
inherited

Operators

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