Interface Summary |
Canvas |
Canvas defines a common abstraction for implementations that
manage the display and user manipulation of Graphic instances. |
CanvasController |
The CanvasController interface serves as the token in the
CanvasController <--> Canvas interaction. |
CanvasHandler |
The CanvasHandler interface provides programmers with a
mechanism to change Canvas properties. |
CanvasListener |
The one method in this interface is called by a Canvas when
its state has changed. |
CanvasState |
Instances of this interface (and its sub-interfaces) describe the current
state of a Canvas . |