org.jgraph.graph
Interface CellHandle

All Known Implementing Classes:

BasicGraphUI.RootHandle, EdgeView.EdgeHandle, VertexView.SizeHandle

public interface CellHandle

Defines the requirements for objects that may be used as handles. Handles are used to interactively manipulate a cell's appearance.

Version:

1.0 1/1/02

Author:

Gaudenz Alder

Method Summary

void	mouseDragged(MouseEvent e) Messagedwhen the user drags the selection.
void	mouseMoved(MouseEvent e) Return a cursor for the given point.
void	mousePressed(MouseEvent event) Messaged when a drag gesture is recogniced.
void	mouseReleased(MouseEvent event) Messaged when the drag operation has terminated with a drop.
void	overlay(Graphics g) Paint the handle on the given graphics object during mouse operations.
void	paint(Graphics g) Paint the handle on the given graphics object once.

Method Detail

paint

void paint(Graphics g)

Paint the handle on the given graphics object once.

Parameters:

g - the graphics object to paint the handle on

overlay

void overlay(Graphics g)

Paint the handle on the given graphics object during mouse operations.

Parameters:

g - the graphics object to paint the handle on

mouseMoved

void mouseMoved(MouseEvent e)

Return a cursor for the given point.

Parameters:

e - the point for which the cursor is returned

mousePressed

void mousePressed(MouseEvent event)

Messaged when a drag gesture is recogniced.

Parameters:

event - the drag gesture event to be processed

mouseDragged

void mouseDragged(MouseEvent e)

Messagedwhen the user drags the selection. The Controller is responsible to determine whether the mouse is inside the parent graph or not.

Parameters:

e - the drag event to be processed

mouseReleased

void mouseReleased(MouseEvent event)

Messaged when the drag operation has terminated with a drop.

Parameters:

event - the drop event to be processed