render method
How to draw this widget on the canvas
Implementation
@override
void render(canvas, context) {
canvas.save();
if (_childDeterminedPrefferedSize == Vector2.zero())
_determineChildPrefferedSize(bounds);
canvas.translate(bounds.x / 2 - _childDeterminedPrefferedSize.x / 2,
bounds.y / 2 - _childDeterminedPrefferedSize.y / 2);
canvas.clipRect(Rect.fromLTWH(0, 0, _childDeterminedPrefferedSize.x,
_childDeterminedPrefferedSize.y));
childBuild?.render(canvas, context);
canvas.restore();
}