com.tensegrity.gui.swing.graph
Class SwingGraphPanelLayoutObserver

java.lang.Object
  com.tensegrity.gui.swing.graph.AbstractLayoutObserver
      com.tensegrity.gui.swing.graph.SwingGraphPanelLayoutObserver

All Implemented Interfaces:

Observer

public class SwingGraphPanelLayoutObserver

extends AbstractLayoutObserver

This class manages redrawing for layout animation. It should be used in the case where the associated GraphPanel is not embeded within the skeleton application framework.

It is used by the GraphLayoutDialog and in other places where graph-layout is initiated.

Version:

$Id: SwingGraphPanelLayoutObserver.java,v 1.3 2004/10/12 14:42:26 MichaelKegel Exp $

Author:

S�bastien Guyon

Field Summary

Fields inherited from class com.tensegrity.gui.swing.graph.AbstractLayoutObserver

ADJUST_VIEWPORT_ACCORDING_TO_GRAPH, ADJUST_VIEWPORT_LEFTTOP, stepcounter, suppressFilling, suppressNavigatorAnimation, suppressText, suppressZoomToFit, updatesteps, viewportadjustment

Constructor Summary

SwingGraphPanelLayoutObserver(GraphPanel graphpanel)
Initializes this SimpleSwingLayoutObserver instance.

SwingGraphPanelLayoutObserver(GraphPanel graphpanel, int updatesteps)
Initializes this SimpleSwingLayoutObserver instance.

SwingGraphPanelLayoutObserver(GraphPanel graphpanel, int updatesteps, int viewportadjustment)
Constructs a SwingGraphPanelLayoutObserver instance associated with the given GraphPanel reference for managing repainting during layout animation.

Method Summary

void	update(Observable observable, java.lang.Object arg) This callback is invoked if the layoutservice returned STATUS_PARTIAL.

Methods inherited from class com.tensegrity.gui.swing.graph.AbstractLayoutObserver

getSuppressFilling, getSuppressNavigatorAnimation, getSuppressText, getSuppressZoomToFit, prepare, setSuppressFilling, setSuppressNavigatorAnimation, setSuppressText, setSuppressZoomToFit, unprepare, updateVisualGraphView

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SwingGraphPanelLayoutObserver

public SwingGraphPanelLayoutObserver(GraphPanel graphpanel)

Initializes this SimpleSwingLayoutObserver instance.

Parameters:

graphpanel - the graph panel to update during the layout.

SwingGraphPanelLayoutObserver

public SwingGraphPanelLayoutObserver(GraphPanel graphpanel,
                                     int updatesteps)

Initializes this SimpleSwingLayoutObserver instance.

Parameters:

graphpanel - the graph panel to update during the layout.

updatesteps - repaint only every updatesteps.

SwingGraphPanelLayoutObserver

public SwingGraphPanelLayoutObserver(GraphPanel graphpanel,
                                     int updatesteps,
                                     int viewportadjustment)

Constructs a SwingGraphPanelLayoutObserver instance associated with the given GraphPanel reference for managing repainting during layout animation.

Parameters:

graphpanel - the graph panel to update during the layout

updatesteps - repaint only every updatesteps.

viewportadjustment - constant that defines the view's viewport adjustment mode

Method Detail

update

public void update(Observable observable,
                   java.lang.Object arg)

This callback is invoked if the layoutservice returned STATUS_PARTIAL. It is used to repaint the graph

Parameters:

observable - the source of the call.

arg - additional information.