CommentNode<T> class

A comment/sticky note node that can be placed anywhere on the canvas.

Comment nodes are free-floating elements that can be used for comments, notes, or explanations within your node flow. They support:

• Custom text content with inline editing
• Configurable size and color
• Free movement and positioning
• Resizing via drag handles
• Auto-grow height when text exceeds current bounds

Comment nodes render in the foreground layer (above regular nodes) and do not participate in marquee selection (selectable: false).

Example

final comment = CommentNode<String>(
  id: 'note-1',
  position: Offset(100, 100),
  text: 'This is a reminder',
  data: 'optional-data',
  width: 200,
  height: 150,
  color: Colors.yellow,
);
controller.addNode(comment);