Nested user interface components
Ken Perlin, Jon Meyer · 1999
Nested User Interface Components combine the concepts of Zooming User Interfaces (ZUIs) with recursive nesting of active graphical user interface widgets. The resulting system of recursively nesting interface components has a number of desirable properties. The level of detail of the view of any widget component and its children, as well as the responsiveness of that component to the user's actions, can be tuned to the current visible size of that component on the screen.