: Interface Draggable

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edu.hws.jcm.draw
Interface Draggable

All Known Implementing Classes:: DraggablePoint

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

public 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.

continueDrag

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

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

finishDrag

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

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