ChartPainter class

Inheritance

• Object
• Listenable
• CustomPainter
• BaseChartPainter
• ChartPainter

Constructors

ChartPainter(ChartStyle chartStyle, ChartColors chartColors, {required List<TrendLine> lines, required bool isTrendLine, required double selectY, required StreamSink<InfoWindowEntity?> sink, required dynamic datas, required dynamic scaleX, required dynamic scrollX, required dynamic isLongPass, required dynamic selectX, required dynamic xFrontPadding, required BaseDimension baseDimension, dynamic isOnTap, dynamic isTapShowInfoDialog, required VerticalTextAlignment verticalTextAlignment, dynamic mainState, dynamic volHidden, dynamic secondaryStateLi, bool isLine = false, bool hideGrid = false, bool showNowPrice = true, int fixedLength = 2, List<int> maDayList = const [5, 10, 20]})

Properties

baseDimension → BaseDimension

base dimension

final

chartColors → ChartColors

final

chartStyle → ChartStyle

final

datas ↔ List<KLineEntity>?

getter/setter pair, inherited

deaColor ↔ Color?

getter/setter pair

difColor ↔ Color?

getter/setter pair

dnColor ↔ Color?

getter/setter pair

fixedLength ↔ int

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

hideGrid → bool

final

isLine ↔ bool

getter/setter pair, inherited

isLongPress ↔ bool

getter/setter pair, inherited

isOnTap ↔ bool

getter/setter pair, inherited

isrecordingCord ↔ bool

getter/setter pair

isTapShowInfoDialog ↔ bool

getter/setter pair, inherited

isTrendLine → bool

final

jColor ↔ Color?

getter/setter pair

lines → List<TrendLine>

final

ma5Color ↔ Color?

getter/setter pair

ma10Color ↔ Color?

getter/setter pair

ma30Color ↔ Color?

getter/setter pair

macdColor ↔ Color?

getter/setter pair

maDayList ↔ List<int>

getter/setter pair

mainState ↔ MainState

getter/setter pair, inherited

mBottomPadding ↔ double

getter/setter pair, inherited

mChildPadding ↔ double

getter/setter pair, inherited

mDataLen ↔ double

getter/setter pair, inherited

mDisplayHeight ↔ double

getter/setter pair, inherited

mFormats ↔ List<String>

getter/setter pair, inherited

mGridColumns ↔ int

getter/setter pair, inherited

mGridRows ↔ int

getter/setter pair, inherited

mItemCount ↔ int

getter/setter pair, inherited

mMainHighMaxValue ↔ double

getter/setter pair, inherited

mMainLowMinValue ↔ double

getter/setter pair, inherited

mMainMaxIndex ↔ int

getter/setter pair, inherited

mMainMaxValue ↔ double

getter/setter pair, inherited

mMainMinIndex ↔ int

getter/setter pair, inherited

mMainMinValue ↔ double

getter/setter pair, inherited

mMainRect ↔ Rect

Rectangle box of main chart

getter/setter pair, inherited

mMainRenderer ↔ BaseChartRenderer

getter/setter pair

mPointWidth ↔ double

getter/setter pair, inherited

mSecondaryRectList ↔ List<RenderRect>

Secondary list support

getter/setter pair, inherited

mSecondaryRendererList ↔ Set<BaseChartRenderer>

getter/setter pair

mStartIndex ↔ int

getter/setter pair, inherited

mStopIndex ↔ int

getter/setter pair, inherited

mTopPadding ↔ double

getter/setter pair, inherited

mTranslateX ↔ double

getter/setter pair, inherited

mVolMaxValue ↔ double

getter/setter pair, inherited

mVolMinValue ↔ double

getter/setter pair, inherited

mVolRect ↔ Rect?

Rectangle box of the vol chart

getter/setter pair, inherited

mVolRenderer ↔ BaseChartRenderer?

getter/setter pair

mWidth ↔ double

getter/setter pair, inherited

nowPricePaint ↔ Paint

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scaleX ↔ double

getter/setter pair, inherited

scrollX ↔ double

getter/setter pair, inherited

secondaryStateLi ↔ Set<SecondaryState>

getter/setter pair, inherited

selectorBorderPaint ↔ Paint

getter/setter pair

selectPointPaint ↔ Paint

getter/setter pair

selectX ↔ double

getter/setter pair, inherited

selectY → double

final

semanticsBuilder → SemanticsBuilderCallback?

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

no setter, inherited

showNowPrice → bool

final

sink ↔ StreamSink<InfoWindowEntity?>

getter/setter pair

upColor ↔ Color?

getter/setter pair

verticalTextAlignment → VerticalTextAlignment

final

volColor ↔ Color?

getter/setter pair

volHidden ↔ bool

getter/setter pair, inherited

xFrontPadding ↔ double

getter/setter pair, inherited

Methods

addListener(VoidCallback listener) → void

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

inherited

calculateSelectedX(double selectX) → int

calculate the value of x after long pressing and convert to index

inherited

calculateValue() → dynamic

calculate values

inherited

drawBg(Canvas canvas, Size size) → void

draw the background of chart

override

drawChart(Canvas canvas, Size size) → void

draw chart

override

drawCrossLine(Canvas canvas, Size size) → void

draw cross lines

override

drawCrossLineText(Canvas canvas, Size size) → void

draw the cross line. when user focus

override

drawDate(Canvas canvas, Size size) → void

draw date

override

drawGrid(dynamic canvas) → void

draw the grid of chart

override

drawMaxAndMin(Canvas canvas) → void

draw maximum and minimum values

override

drawNowPrice(Canvas canvas) → void

draw the current price

override

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

draw text

override

drawTrendLines(Canvas canvas, Size size) → void

drawVerticalText(dynamic canvas) → void

draw vertical text

override

getDate(int? date) → String

getItem(int position) → KLineEntity

inherited

getMainMaxMinValue(KLineEntity item, int i) → void

compute maximum and minimum value

inherited

getMainY(double y) → double

getMinTranslateX() → double

get the minimum value of translation

inherited

getSecondaryMaxMinValue(int index, KLineEntity item) → dynamic

inherited

getTextPainter(dynamic text, dynamic color) → TextPainter

getTextStyle(Color color) → TextStyle

define text style

inherited

getVolMaxMinValue(KLineEntity item) → void

inherited

getX(int position) → double

Get x coordinate based on index

inherited

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

inherited

initChartRenderer() → void

init chart renderer

override

initFormats() → void

init format time

inherited

initRect(Size size) → void

init the rectangle box to draw chart

inherited

isInMainRect(Offset point) → bool

Whether the point is in the SecondaryRect Whether the point is in MainRect

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

paint(Canvas canvas, Size size) → void

paint chart

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

setTranslateXFromScrollX(double scrollX) → void

scrollX convert to TranslateX

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 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).

inherited

toString() → String

A string representation of this object.

inherited

translateXtoX(double translateX) → double

translateX is converted to X in view

inherited

xToTranslateX(double x) → double

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

maxScrollX → dynamic

no setter