The layout is finally gotten out through the Layout manager in the following 3 stages:
● The Commit Phase: the properties of the different object are validated using the Validateproperty() function. The lower most object in the hierarchy is validated first proceeding avbove.
● The Measurement stage is the one that involves the size and scaling validations to be done on every object that has to be rendered for display.
The layout phase: this is when validateDisplayList() is called from the parent to the inner nested child objects in the sequence of the hierarchy. This will make sure all are scaled appropriately for display to the intended resolution.