PositionedComponentInstance class Layout

Represents a ComponentInstance with its assigned Rect bounds, optionally linked to the parent component responsible for rendering it.

Used by the LayoutEngine to provide the renderer with the final layout result for each component.

See also

• LayoutEngine — Produces positioned components.
• Rect — The position and size of the component.

Example

final positioned = PositionedComponentInstance(
  componentInstance: myComponent,
  rect: Rect(x: 0, y: 0, width: 10, height: 2),
  parentComponentInstance: parent,
);

Constructors

PositionedComponentInstance.new({required ComponentInstance componentInstance, required Rect rect, ComponentInstance? parentComponentInstance})

Creates a positioned component instance with the given bounds.

Properties

componentInstance ↔ ComponentInstance

The component being positioned.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

parentComponentInstance ↔ ComponentInstance?

The parent component that will render this instance, or null if the renderer handles it directly.

getter/setter pair

rect → Rect

The final bounds of the component.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited