weka.gui.graphvisualizer

Interface LayoutEngine

All Known Implementing Classes:

HierarchicalBCEngine

public interface LayoutEngine

This interface class has been added to facilitate the addition of other layout engines to this package. Any class that wants to lay out a graph should implement this interface.

Version:

$Revision: 1.6 $ - 24 Apr 2003 - Initial version (Ashraf M. Kibriya)

Author:

Ashraf M. Kibriya (amk14@cs.waikato.ac.nz)

Method Summary

Modifier and Type	Method and Description
void	addLayoutCompleteEventListener(LayoutCompleteEventListener e) This method adds a LayoutCompleteEventListener to the LayoutEngine.
void	fireLayoutCompleteEvent(LayoutCompleteEvent e) This fires a LayoutCompleteEvent once a layout has been completed.
javax.swing.JPanel	getControlPanel() This method returns the extra controls panel for the LayoutEngine, if there is any.
FastVector	getNodes() give access to set of graph nodes
javax.swing.JProgressBar	getProgressBar() This method returns the progress bar for the LayoutEngine, which shows the progress of the layout process, if it takes a while to layout the graph
void	layoutGraph() This method lays out the graph for better visualization
void	removeLayoutCompleteEventListener(LayoutCompleteEventListener e) This method removes a LayoutCompleteEventListener from the LayoutEngine.
void	setNodesEdges(FastVector nodes, FastVector edges) This method sets the nodes and edges vectors of the LayoutEngine
void	setNodeSize(int nodeWidth, int nodeHeight) This method sets the allowed size of the node

Method Detail

layoutGraph

void layoutGraph()

This method lays out the graph for better visualization

setNodesEdges

void setNodesEdges(FastVector nodes,
                   FastVector edges)

This method sets the nodes and edges vectors of the LayoutEngine

setNodeSize

void setNodeSize(int nodeWidth,
                 int nodeHeight)

This method sets the allowed size of the node

getNodes

FastVector getNodes()

give access to set of graph nodes

getControlPanel

javax.swing.JPanel getControlPanel()

This method returns the extra controls panel for the LayoutEngine, if there is any.

getProgressBar

javax.swing.JProgressBar getProgressBar()

This method returns the progress bar for the LayoutEngine, which shows the progress of the layout process, if it takes a while to layout the graph

addLayoutCompleteEventListener

void addLayoutCompleteEventListener(LayoutCompleteEventListener e)

This method adds a LayoutCompleteEventListener to the LayoutEngine.

Parameters:

e - - The LayoutCompleteEventListener to add

removeLayoutCompleteEventListener

void removeLayoutCompleteEventListener(LayoutCompleteEventListener e)

This method removes a LayoutCompleteEventListener from the LayoutEngine.

Parameters:

e - - The LayoutCompleteEventListener to remove.

fireLayoutCompleteEvent

void fireLayoutCompleteEvent(LayoutCompleteEvent e)

This fires a LayoutCompleteEvent once a layout has been completed.