CustomChart class

A generic chart widget backed by a custom ChartPainter.

Use this when a chart does not fit one of the built-in primitives but can still render into a UV canvas using cell-based drawing.

Inheritance

Constructors

CustomChart({required ChartPainter painter, int? width, int? height, List<ChartLegendEntry>? legendEntries, int legendColumns = 1, int legendRowGap = 0, ChartLegendPosition legendPosition = ChartLegendPosition.topRight, int legendPadding = 1, int? crosshairX, int? crosshairY, UvStyle? crosshairStyle, Key? key})

accessibilityLabel → String?: Optional accessibility label.
no setterinherited
accessibilityRole → String: Optional accessibility role.
no setterinherited
children → List<Widget>: Child widgets that receive forwarded messages.
no setterinherited
crosshairStyle → UvStyle?: final
crosshairX → int?: final
crosshairY → int?: final
debugRenderObjectPassthrough → bool: Whether this widget is intentionally transparent to render-object layouts.
no setterinherited
degradationSignal → WidgetDegradationSignal: Signal that controls this widget's render budget behavior.
no setterinherited
focusable → bool: Whether this widget can receive keyboard focus.
no setterinherited
hashCode → int: The hash code for this object.
no setterinherited
height → int?: final
id → String: Unique identifier for this widget.
no setterinherited
key → Key?: Key for preserving widget identity.
finalinherited
legendColumns → int: final
legendEntries → List<ChartLegendEntry>?: final
legendPadding → int: final
legendPosition → ChartLegendPosition: final
legendRowGap → int: final
painter → ChartPainter: final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
theme → Theme: Access the current theme.
no setterinherited
width → int?: final

buildCachedView<T>(T builder(), Object? cacheKey) → T: Returns a cached view if the cache key matches.
inherited
createRenderObject() → RenderObject: override
didUnmountRenderObject(RenderObject renderObject) → void: inherited
handleInit() → Cmd?: Override this instead of init for widget-specific initialization.
inherited
handleIntercept(Msg msg) → (Widget, Cmd?): Override this to handle messages before they reach children.
inherited
handleUpdate(Msg msg) → (Widget, Cmd?): Override this to handle messages specific to this widget.
inherited
init() → Cmd?: Called once when the widget is first mounted.
inherited
invalidateCachedView() → void: Clears any cached view for this widget.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
shouldRenderAt(DegradationLevel degradationLevel, {required bool subtreeHasFocusedWidget}) → bool: Whether this widget should participate in the current render when degradationLevel is active.
inherited
toString() → String: A string representation of this object.
inherited
update(Msg msg) → (Model, Cmd?): Handles messages by forwarding to children then calling handleUpdate.
inherited
updateRenderObject(RenderObject renderObject) → void: override
view() → Object: Renders the widget to a string or View.
override