ChartLinePainter class
折线图、曲线图
- Inheritance
-
- Object
- Listenable
- CustomPainter
- BasePainter
- ChartLinePainter
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> ? -
getter/setter pair
- endX ↔ double
-
getter/setter pair
- endY ↔ double
-
getter/setter pair
- fontColor ↔ Color?
-
getter/setter pair
- fontSize ↔ double?
-
getter/setter pair
- globalPosition ↔ Offset?
-
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- isCanTouch ↔ bool
-
getter/setter pair
- isCurve ↔ bool
-
getter/setter pair
- isShowBorderRight ↔ bool
-
getter/setter pair
- isShowBorderTop ↔ bool
-
getter/setter pair
- isShowFloat ↔ bool?
-
getter/setter pair
- isShowHintX ↔ bool
-
getter/setter pair
- isShowHintY ↔ bool
-
getter/setter pair
- isShowPressedHintLine ↔ bool
-
getter/setter pair
- isShowXy ↔ bool
-
getter/setter pair
- isShowXyRuler ↔ bool
-
getter/setter pair
- isShowYValue ↔ bool
-
getter/setter pair
- lineColor ↔ Color
-
getter/setter pair
- lineWidth ↔ double
-
getter/setter pair
-
maxMin
↔ List<
double> -
getter/setter pair
- path ↔ Path?
-
getter/setter pair
- pressedHintLineColor ↔ Color?
-
getter/setter pair
- pressedHintLineWidth ↔ double
-
getter/setter pair
- pressedPointRadius ↔ double
-
getter/setter pair
- rulerWidth ↔ double
-
getter/setter pair
- 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
-
shaderColors
↔ List<
Color> ? -
getter/setter pair
- startX ↔ double
-
getter/setter pair
- startY ↔ double
-
getter/setter pair
- value ↔ double
-
getter/setter pair
- xyColor ↔ Color?
-
getter/setter pair
- yNum ↔ int?
-
getter/setter pair
Methods
-
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
-
drawRuler(
Canvas canvas, Paint paint) → void - x,y轴刻度 & 辅助线
-
hitTest(
Offset position) → bool? -
Called whenever a hit test is being performed on an object that is using
this custom paint delegate.
inherited
-
initBorder(
Size size) → void - 计算边界
-
initPath(
Size size) → void - 计算Path
-
initValue(
) → void -
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 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
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
- defaultColor → const Color