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Class GraphPanel 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Panel
                           |
                           +----GraphPanel
public class GraphPanel
extends Panel
implements Runnable, MouseListener, MouseMotionListener
A panel representing and showing a directed graph. Graph layout is performed by an iterative algorithm in a background thread

Variable Index

o delay
Delay between each layout iteration
o firstSpreadDone
o nIterations
Number of layout iterations since the last spreadNodes() of nodes
o random
o relaxer
The Thread object providing background processing
o stress

Method Index

o getMinimumSize()
o getPreferredSize()
Guess the space we may need
o mouseClicked(MouseEvent)
o mouseDragged(MouseEvent)
o mouseEntered(MouseEvent)
o mouseExited(MouseEvent)
o mouseMoved(MouseEvent)
o mousePressed(MouseEvent)
o mouseReleased(MouseEvent)
o processMouseEvent(MouseEvent)
o run()
o start()
Randomize the nodes so the algorithm may later converge, and start the layout/redraw thread
o stop()
o update(Graphics)
Draws the graph, asking help to Edge and Node.

Variables

o nIterations 
 public long nIterations
Number of layout iterations since the last spreadNodes() of nodes

o relaxer 
 protected Thread relaxer
The Thread object providing background processing

o stress 
 public boolean stress
o random 
 public boolean random
o delay 
 public long delay
Delay between each layout iteration

o firstSpreadDone 
 protected boolean firstSpreadDone

Methods

o getMinimumSize 
 public Dimension getMinimumSize()
Overrides:
getMinimumSize in class Container
o getPreferredSize 
 public Dimension getPreferredSize()
Guess the space we may need

Overrides:
getPreferredSize in class Container
o run 
 public void run()
o update 
 public synchronized void update(Graphics g)
Draws the graph, asking help to Edge and Node. Done here instead of paint() to avoid flickering

Overrides:
update in class Container
o mouseEntered 
 public void mouseEntered(MouseEvent e)
o mousePressed 
 public synchronized void mousePressed(MouseEvent e)
o processMouseEvent 
 public void processMouseEvent(MouseEvent e)
Overrides:
processMouseEvent in class Component
o mouseClicked 
 public void mouseClicked(MouseEvent e)
o mouseDragged 
 public synchronized void mouseDragged(MouseEvent e)
o mouseMoved 
 public void mouseMoved(MouseEvent e)
o mouseReleased 
 public synchronized void mouseReleased(MouseEvent e)
o mouseExited 
 public void mouseExited(MouseEvent e)
o start 
 public void start()
Randomize the nodes so the algorithm may later converge, and start the layout/redraw thread

o stop 
 public void stop()

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