DiagramParagraphTextLayoutEngine class abstract

Owns story offsets, content slots, spacing, and vertical placement for every paragraph shaper, including deterministic headless measurement.

Implemented types

• DiagramTextLayoutEngine

Implementers

• FixedMetricsTextLayoutEngine
• PangoDiagramTextLayoutEngine

Constructors

DiagramParagraphTextLayoutEngine({double blockSpacing = diagramDefaultBlockSpacing, double listIndent = 22})

const

Properties

blockSpacing → double

final

hashCode → int

The hash code for this object.

no setter, inherited

listIndent → double

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

layout({required TextStory story, required DiagramRect clipBounds, required int revisionKey, List<DiagramTextRegionLayout> regions = const []}) → ResolvedTextStory

override

measureBlock(TextParagraph block, DiagramTextRegionLayout region, double availableWidth) → List<DiagramMeasuredTextLine>

Shapes every block into at least one finite, positive-height visual line, including an empty block. Offsets remain relative to canonical block text. The same line metrics drive placement, carets, selection and owner growth.

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