RenderEditablePainter class Null safety

An interface that paints within a RenderEditable's bounds, above or beneath its text content.

This painter is typically used for painting auxiliary content that depends on text layout metrics (for instance, for painting carets and text highlight blocks). It can paint independently from its RenderEditable, allowing it to repaint without triggering a repaint on the entire RenderEditable stack when only auxiliary content changes (e.g. a blinking cursor) are present. It will be scheduled to repaint when:

See also:

Inheritance

Constructors

RenderEditablePainter()

Properties

hashCode int
The hash code for this object. [...]
read-only, inherited
hasListeners bool
Whether any listeners are currently registered. [...]
@protected, read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

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 and removeListener will throw after the object is disposed). [...]
@mustCallSuper, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
notifyListeners() → void
Call all the registered listeners. [...]
paint(Canvas canvas, Size size, RenderEditable renderEditable) → void
Paints within the bounds of a RenderEditable. [...]
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes. [...]
inherited
shouldRepaint(RenderEditablePainter? oldDelegate) bool
Determines whether repaint is needed when a new RenderEditablePainter is provided to a RenderEditable. [...]
toString() String
A string representation of this object. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited