LineDecoration class

Represents a decoration applied to a range of lines in the editor.

Line decorations can be used to highlight code changes (git diff), mark breakpoints, show coverage information, or any custom highlighting.

Example - Git diff added lines:

controller.addLineDecoration(LineDecoration(
  startLine: 10,
  endLine: 15,
  type: LineDecorationType.background,
  color: Colors.green.withOpacity(0.2),
));

Example - Git diff left border:

controller.addLineDecoration(LineDecoration(
  startLine: 10,
  endLine: 15,
  type: LineDecorationType.leftBorder,
  color: Colors.green,
  thickness: 3,
));

Constructors

LineDecoration({required String id, required int startLine, required int endLine, required LineDecorationType type, required Color color, double thickness = 3.0, int priority = 0})

Creates a line decoration.

const

Properties

color → Color

The color of the decoration

final

endLine → int

The end line (0-based, inclusive) of the decoration range

final

hashCode → int

The hash code for this object.

no setter, override

id → String

Unique identifier for this decoration

final

priority → int

Optional priority for overlapping decorations (higher = on top)

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

startLine → int

The start line (0-based) of the decoration range

final

thickness → double

Thickness for border/underline decorations (default: 3.0)

final

type → LineDecorationType

The type of decoration to apply

final

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.

override