LyricPainter class

Inheritance

• Object
• Listenable
• CustomPainter
• LyricPainter

Mixed-in types

• ChangeNotifier

Constructors

LyricPainter(List<Lyric> lyrics, List<TextPainter> lyricTextPaints, List<TextPainter> subLyricTextPaints, {List<Lyric>? subLyrics, TickerProvider? vsync, TextStyle? lyricTextStyle, TextStyle? subLyricTextStyle, TextStyle? currLyricTextStyle, TextStyle? currSubLyricTextStyle, TextStyle? draggingLyricTextStyle, TextStyle? draggingSubLyricTextStyle, double? lyricGapValue, double? subLyricGapValue, double? lyricMaxWidth})

Properties

canvasSize ↔ Size

getter/setter pair

currentLyricIndex ↔ dynamic

getter/setter pair

currLyricTextStyle ↔ TextStyle?

getter/setter pair

currSubLyricTextStyle ↔ TextStyle?

getter/setter pair

draggingLine ↔ dynamic

getter/setter pair

draggingLyricTextStyle ↔ TextStyle?

getter/setter pair

draggingSubLyricTextStyle ↔ TextStyle?

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

hasListeners → bool

Whether any listeners are currently registered.

no setter, inherited

lyricGapValue ↔ double?

getter/setter pair

lyricMaxWidth ↔ double?

getter/setter pair

lyrics ↔ List<Lyric>

getter/setter pair

lyricTextPaints → List<TextPainter>

final

lyricTextStyle ↔ TextStyle?

getter/setter pair

offset ↔ dynamic

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

semanticsBuilder → SemanticsBuilderCallback?

Returns a function that builds semantic information for the picture drawn by this painter.

no setter, inherited

subLyricGapValue ↔ double?

getter/setter pair

subLyrics ↔ List<Lyric>?

getter/setter pair

subLyricTextPaints → List<TextPainter>

final

subLyricTextStyle ↔ TextStyle?

getter/setter pair

Methods

addListener(VoidCallback listener) → void

Register a closure to be called when the object changes.

inherited

dispose() → void

Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).

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

notifyListeners() → void

Call all the registered listeners.

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 are notified when the object changes.

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 LyricPainter 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