paint method
Default paint implementation.
RenderBox paints no self-content; it forwards painting to its RenderBox children. Subclasses override to draw their own content.
Implementation
@override
void paint(PaintingContext context, Offset offset) {
visitChildren((child) {
if (child is RenderBox) {
context.paintChild(child, offset + Offset(x, y));
}
});
}