ChartLinePainter class

Inheritance

Constructors

ChartLinePainter(List<ChartBean> chartBeans, Color lineColor, {double lineWidth: 4, double value: 1, bool isCurve: true, bool isShowXy: true, bool isShowYValue: true, bool isShowXyRuler: true, bool isShowHintX: false, bool isShowHintY: false, bool isShowBorderTop: false, bool isShowBorderRight: false, double rulerWidth: 8, List<Color> shaderColors, Color xyColor: defaultColor, int yNum: 5, bool isShowFloat: false, double fontSize: 10, Color fontColor: defaultColor, bool isCanTouch: false, Offset globalPosition, bool isShowPressedHintLine: true, double pressedPointRadius: 4, double pressedHintLineWidth: 0.5, Color pressedHintLineColor: defaultColor})

Properties

chartBeans ↔ List<ChartBean>
read / write
endX ↔ double
read / write
endY ↔ double
read / write
fontColor Color
read / write
fontSize ↔ double
read / write
globalPosition Offset
read / write
isCanTouch ↔ bool
read / write
isCurve ↔ bool
read / write
isShowBorderRight ↔ bool
read / write
isShowBorderTop ↔ bool
read / write
isShowFloat ↔ bool
read / write
isShowHintX ↔ bool
read / write
isShowHintY ↔ bool
read / write
isShowPressedHintLine ↔ bool
read / write
isShowXy ↔ bool
read / write
isShowXyRuler ↔ bool
read / write
isShowYValue ↔ bool
read / write
lineColor Color
read / write
lineWidth ↔ double
read / write
maxMin ↔ List<double>
read / write
path Path
read / write
pressedHintLineColor Color
read / write
pressedHintLineWidth ↔ double
read / write
pressedPointRadius ↔ double
read / write
rulerWidth ↔ double
read / write
shaderColors ↔ List<Color>
read / write
startX ↔ double
read / write
startY ↔ double
read / write
value ↔ double
read / write
xyColor Color
read / write
yNum ↔ int
read / write
hashCode → int
The hash code for this object.
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
semanticsBuilder SemanticsBuilderCallback
Returns a function that builds semantic information for the picture drawn by this painter.
read-only, inherited

Methods

drawRuler(Canvas canvas, Paint paint) → void
x,y轴刻度 & 辅助线
initBorder(Size size) → void
计算边界
initPath(Size size) → void
计算Path
initValue() → void
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
shouldRepaint(covariant ChartLinePainter 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
addListener(VoidCallback listener) → void
Register a closure to be notified when it is time to repaint.
inherited
calculateMaxMin(List<ChartBean> chatBeans) → List<double>
计算极值 最大值,最小值
inherited
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 non-existent method or property is accessed.
inherited
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
toString() → String
Returns a string representation of this object.
inherited

Operators

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

Constants

basePadding → const double
16
defaultColor → const Color
Colors.deepPurple