BaseChartPainter class abstract

Inheritance

• Object
• Listenable
• CustomPainter
• BaseChartPainter

Implementers

• ChartPainter

Constructors

BaseChartPainter(ChartStyle chartStyle, {List<KLineEntity>? datas, required double scaleX, required double scrollX, required bool isLongPress, required double selectX, required double xFrontPadding, bool isOnTap = false, MainState mainState = MainState.MA, bool volHidden = false, bool isTapShowInfoDialog = false, SecondaryState secondaryState = SecondaryState.MACD, bool isLine = false})

Properties

chartStyle → ChartStyle

final

datas ↔ List<KLineEntity>?

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

isLine ↔ bool

getter/setter pair

isLongPress ↔ bool

getter/setter pair

isOnTap ↔ bool

getter/setter pair

isTapShowInfoDialog ↔ bool

getter/setter pair

mainState ↔ MainState

getter/setter pair

mBottomPadding ↔ double

getter/setter pair

mChildPadding ↔ double

getter/setter pair

mDataLen ↔ double

getter/setter pair

mDisplayHeight ↔ double

getter/setter pair

mFormats ↔ List<String>

getter/setter pair

mGridColumns ↔ int

getter/setter pair

mGridRows ↔ int

getter/setter pair

mItemCount ↔ int

getter/setter pair

mMainHighMaxValue ↔ double

getter/setter pair

mMainLowMinValue ↔ double

getter/setter pair

mMainMaxIndex ↔ int

getter/setter pair

mMainMaxValue ↔ double

getter/setter pair

mMainMinIndex ↔ int

getter/setter pair

mMainMinValue ↔ double

getter/setter pair

mMainRect ↔ Rect

getter/setter pair

mPointWidth ↔ double

getter/setter pair

mSecondaryMaxValue ↔ double

getter/setter pair

mSecondaryMinValue ↔ double

getter/setter pair

mSecondaryRect ↔ Rect?

getter/setter pair

mStartIndex ↔ int

getter/setter pair

mStopIndex ↔ int

getter/setter pair

mTopPadding ↔ double

getter/setter pair

mTranslateX ↔ double

getter/setter pair

mVolMaxValue ↔ double

getter/setter pair

mVolMinValue ↔ double

getter/setter pair

mVolRect ↔ Rect?

getter/setter pair

mWidth ↔ double

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scaleX ↔ double

getter/setter pair

scrollX ↔ double

getter/setter pair

secondaryState ↔ SecondaryState

getter/setter pair

selectX ↔ double

getter/setter pair

semanticsBuilder → SemanticsBuilderCallback?

Returns a function that builds semantic information for the picture drawn by this painter.

no setter, inherited

volHidden ↔ bool

getter/setter pair

xFrontPadding ↔ double

getter/setter pair

Methods

addListener(VoidCallback listener) → void

Register a closure to be notified when it is time to repaint.

inherited

calculateSelectedX(double selectX) → int

计算长按后x的值，转换为index

calculateValue() → dynamic

drawBg(Canvas canvas, Size size) → void

drawChart(Canvas canvas, Size size) → void

drawCrossLine(Canvas canvas, Size size) → void

drawCrossLineText(Canvas canvas, Size size) → void

drawDate(Canvas canvas, Size size) → void

drawGrid(dynamic canvas) → void

drawMaxAndMin(Canvas canvas) → void

drawNowPrice(Canvas canvas) → void

drawText(Canvas canvas, KLineEntity data, double x) → void

drawVerticalText(dynamic canvas) → void

getItem(int position) → KLineEntity

getMainMaxMinValue(KLineEntity item, int i) → void

getMinTranslateX() → double

获取平移的最小值

getSecondaryMaxMinValue(KLineEntity item) → void

getTextStyle(Color color) → TextStyle

getVolMaxMinValue(KLineEntity item) → void

getX(int position) → double

根据索引索取x坐标

hitTest(Offset position) → bool?

Called whenever a hit test is being performed on an object that is using this custom paint delegate.

inherited

indexOfTranslateX(double translateX) → int

initChartRenderer() → void

initFormats() → void

initRect(Size size) → 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

setTranslateXFromScrollX(double scrollX) → void

scrollX 转换为 TranslateX

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 BaseChartPainter 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

translateXtoX(double translateX) → double

translateX转化为view中的x

xToTranslateX(double x) → double

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

maxScrollX ↔ double

getter/setter pair