HeatmapRenderer class

Lays out and draws contributions as a GitHub-style contribution calendar.

Inheritance

Implemented types

Constructors

HeatmapRenderer({required List<ContributionData> contributions, Color? baseColor, Color? backgroundSquareColor}): Creates a renderer for contributions, with optional baseColor (the filled-day tint) and backgroundSquareColor (the empty-day square).

accessibilityLabel → String: A short label naming the kind of chart, e.g. "Line chart", for semantics.
no setteroverride
accessibilityValue → String: A value summarizing the chart's data — counts, range, a few points.
no setteroverride
backgroundSquareColor → Color: The square color for empty days on dark themes.
final
baseColor → Color: The tint for non-empty days, faded through intensity steps.
final
contributions → List<ContributionData>: The per-day contribution entries to aggregate and draw.
final
hashCode → int: The hash code for this object.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

buildScene(Size size) → ChartScene: Builds one PlotMark per drawn cell (a calendar day), so a tap on any square selects that day. Cell colors use the theme-agnostic palette.
override
draw(Canvas canvas, Size size, DrafterThemeColors theme, double progress) → void: Draws the chart. progress is the entrance reveal in 0..1 (1 = fully drawn).
override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited