Add the given ComponentOp to this component.
Apply the operation, this is called before the component is rendered.
If this is true, when this drawable operation is attempted to be added, if one is already present, instead of replacing it, it will be ignored.
true
finish this operation immediately.
Unapply the operation. this is called after the component is rendered.
override this function to verify that this operation is valid, which is run before it is applied. (default: always true)