BlobatarPainter class

Paints a static blobatar through BlobatarRenderer.

The painter owns the repaint decision (shouldRepaint compares the seed and the options by value), not the sizing — the enclosing widget owns the constraints. Sizing changes alone never repaint, since the renderer maps the viewBox onto whatever canvas it is given.

Inheritance

Constructors

BlobatarPainter({required String name, BlobatarOptions options = const BlobatarOptions()})
Creates a static painter and resolves its renderer immediately.

Properties

hashCode → int
The hash code for this object.
no setterinherited
name → String
The name resolved by this painter.
final
options → BlobatarOptions
The immutable core options resolved by this painter.
final
renderer → BlobatarRenderer
The wrapped renderer, kept so tests and the widget can share one resolution instead of resolving twice.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semanticsBuilder → SemanticsBuilderCallback?
Returns a function that builds semantic information for the picture drawn by this painter.
no setterinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be notified when it is time to repaint.
inherited
hitTest(Offset position) → bool?
Called whenever a hit test is being performed on an object that is using this custom paint delegate.
inherited
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
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 BlobatarPainter 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

Operators

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