net.sourceforge.webcompmath.draw
Interface Draggable

All Known Implementing Classes:

DraggablePoint, WCMDraggablePointBean

public interface Draggable

An interface that can be implemented by an object that can be dragged with the mouse.

Method Summary

void	continueDrag(java.awt.event.MouseEvent evt) Continue a drag that was started in startDrag().
void	finishDrag(java.awt.event.MouseEvent evt) Finish a draw that was started in startDrag().
boolean	startDrag(java.awt.event.MouseEvent evt) Tell the object that a drag operation might be beginning.

Method Detail

startDrag

boolean startDrag(java.awt.event.MouseEvent evt)

Tell the object that a drag operation might be beginning. The Draggable object can decide whether it really wants to be dragged, based on the MouseEvent. It should return true to indicate that a drag should really be started, and false if it wants to ignore the MouseEvent.

Parameters:

evt - the event created when user drags the mouse

Returns:

true or false

continueDrag

void continueDrag(java.awt.event.MouseEvent evt)

Continue a drag that was started in startDrag(). Presumably the event is a mouseDragged event.

Parameters:

evt - the event created when user drags the mouse

finishDrag

void finishDrag(java.awt.event.MouseEvent evt)

Finish a draw that was started in startDrag(). Presumably the event is a mouseReleased event.

Parameters:

evt - the event created when user stops dragging the mouse