MarkerGroupSeries class

Marker Group series

A specialized series for displaying groups of related markers on a chart. This class extends MarkerSeries and provides functionality for managing and displaying collections of MarkerGroup objects.

MarkerGroupSeries is responsible for determining which marker groups should be visible based on the current chart viewport (defined by leftEpoch and rightEpoch).

Inheritance

Constructors

MarkerGroupSeries(SplayTreeSet<Marker> entries, {required MarkerGroupIconPainter markerGroupIconPainter, List<MarkerGroup>? markerGroupList, ActiveMarkerGroup? activeMarkerGroup, ActiveMarker? activeMarker})
Initializes a new instance of the MarkerGroupSeries class.

Properties

activeMarker → ActiveMarker?
Active/focused marker on the chart.
finalinherited
activeMarkerGroup → ActiveMarkerGroup?
Active marker group that is currently selected on the chart.
final
axisGroup → String?
Which axis this series scales against.
finalinherited
entryTick → Tick?
Entry tick marker.
finalinherited
exitTick → Tick?
Exit tick marker.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
id ↔ String
The ID of this ChartData.
getter/setter pairinherited
markerGroupIconPainter → MarkerGroupIconPainter
Painter that draws corresponding marker icons.
final
markerGroupList → List<MarkerGroup>?
List of related grouped markers.
final
markerIconPainter → MarkerIconPainter
Painter that draw corresponding marker icon.
finalinherited
maxValue → double
Max quote in a frame.
no setterinherited
maxValueInFrame ↔ double?
Maximum value of this series in a visible range of the chart.
getter/setter pairinherited
minValue → double
Min quote in a frame.
no setterinherited
minValueInFrame ↔ double?
Minimum value of this series in a visible range of the chart.
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
seriesPainter ↔ SeriesPainter<Series>?
Responsible for painting a frame of this series on the canvas.
getter/setter pairinherited
style → ChartPaintingStyle?
The painting style of this Series.
finalinherited
visibleEntries ↔ List<Marker>
Visible marker entries.
getter/setter pairinherited
visibleMarkerGroupList ↔ List<MarkerGroup>
List of marker groups that are currently visible in the chart viewport.
getter/setter pair

Methods

createPainter() → SeriesPainter<MarkerGroupSeries>
Creates a painter for rendering this marker group series on the chart.
override
didUpdate(ChartData? oldData) → bool
Always returns false because marker changes do not drive tick animations; only the main series result is used for that purpose.
inherited
getMaxEpoch() → int?
Maximum epoch of this ChartData on the chart's X-Axis.
inherited
getMinEpoch() → int?
Minimum epoch of this ChartData on the chart's X-Axis.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onTap(Offset localPosition) → bool
Called when this series' pane receives a tap at localPosition, in the same coordinate space as paint's size/canvas. Override to make a drawn region (e.g. a label) interactive. Returns true if the tap was handled by this series.
inherited
onUpdate(int leftEpoch, int rightEpoch) → void
Updates the list of visible marker groups based on the current chart viewport.
override
paint(Canvas canvas, Size size, double epochToX(int), double quoteToY(double), AnimationInfo animationInfo, ChartConfig chartConfig, ChartTheme theme, ChartScaleModel chartScaleModel) → void
Paints seriesPainter's data on the canvas.
inherited
recalculateMinMax() → List<double>
Calculate min/max values in updated data
inherited
shouldRepaint(ChartData? previous) → bool
Checks if this ChartData needs to repaint with the chart widget's new frame.
inherited
toString() → String
A string representation of this object.
inherited
update(int leftEpoch, int rightEpoch) → void
Updates visible entries for this Series.
inherited

Operators

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