LineChartPainter class

Inheritance

Constructors

LineChartPainter({required Color bgColor, required Color xAxisColor, required double xAxisWidth, List<LineChartPoint>? points, Color lineColor = const Color(0xFF1678FF), Color? xLineTextColor, double lineWidth = 1, Color? yAxisColor, double? yAxisWidth, bool drawYAxis = false, int xLineNums = 1, bool showXLineText = false, LineChartPointConfig? config, Offset? touchOffset, bool showYLineMark = false, double topPadding = 10, double startPadding = 10, double endPadding = 15, SelectedCallback? selectedCallback, List<List<LineChartPoint>>? multipleLinePoints, List<Color>? multipleLinePointsColor, List<String>? xLineMarks, String? yUnit, bool useUnifyYUnit = false, bool unSelected = false})

Properties

bgColor → Color
final
config → LineChartPointConfig?
final
drawYAxis → bool
final
endPadding → double
final
hashCode → int
The hash code for this object.
no setterinherited
lineColor → Color
final
lineWidth → double
final
multipleLinePoints → List<List<LineChartPoint>>?
final
multipleLinePointsColor → List<Color>?
final
points → List<LineChartPoint>?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedCallback → SelectedCallback?
final
semanticsBuilder → SemanticsBuilderCallback?
Returns a function that builds semantic information for the picture drawn by this painter.
no setterinherited
showXLineText → bool
final
showYLineMark → bool
final
startPadding → double
final
textHeight → int
final
topPadding → double
final
touchOffset → Offset?
final
unSelected ↔ bool
getter/setter pair
useUnifyYUnit → bool
final
xAxisColor → Color
final
xAxisWidth → double
final
xLineMarks → List<String>?
final
xLineNums → int
final
xLineTextColor ↔ Color?
getter/setter pair
yAxisColor ↔ Color?
getter/setter pair
yAxisWidth ↔ double?
getter/setter pair
yUnit → String?
final

Methods

addListener(VoidCallback listener) → void
Register a closure to be notified when it is time to repaint.
inherited
generateMaxPointInAllChart(List<Object?> pointsList) → double
getYLineMaxAndMinVal(List<LineChartPoint> points) → Point<double>
获取在Y轴上最大和最小值（max,min）
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).
override
toString() → String
A string representation of this object.
inherited

Operators

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