salvo.jesus.graph.visual.layout

Class LayeredTreeLayout

java.lang.Object

salvo.jesus.graph.visual.layout.AbstractGridLayout

salvo.jesus.graph.visual.layout.LayeredTreeLayout

All Implemented Interfaces:

Serializable, Runnable, Visitor, GraphGridLayoutManager, GraphLayoutManager

public class LayeredTreeLayout
extends AbstractGridLayout
implements Visitor

Author:

Jesus M. Salvo Jr.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LayeredTreeLayout(VisualGraph vGraph)

Method Summary

Modifier and Type	Method and Description
void	addEdge(VisualEdge vEdge) Automatically called when a VisualEdge object has been added to the VisualGraph object being laid out.
void	addVertex(VisualVertex vVertex) Automatically called when a VisualVertex object has been added to the VisualGraph object being laid out.
void	layout() Execute the layered-tree layout algorithm
void	removeEdge(VisualEdge vEdge) Automatically called when a VisualEdge object is about to be removed from the VisualGraph object being laid out.
void	removeVertex(VisualVertex vVertex) Automatically called when a VisualVertex object is about to be removed from the VisualGraph object being laid out.
void	routeEdge(Graphics2D g2d, VisualEdge vEdge) Automatically called when a VisualEdge object needs to be drawn.
boolean	visit(Vertex vertexToVisit) Implementation of the visit() method of the Visitor interface.

Methods inherited from class salvo.jesus.graph.visual.layout.AbstractGridLayout

drawLayout, generalPosition, getDrawgrid, getGrid, getStartAt, getXGridDistance, getYGridDistance, isInitialized, medianPlacement, run, setDrawGrid, setGraphLayoutListener, setStartAt, setXGridDistance, setYGridDistance

Methods inherited from class java.lang.Object

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

Constructor Detail

LayeredTreeLayout

public LayeredTreeLayout(VisualGraph vGraph)

Method Detail

layout

public void layout()

Execute the layered-tree layout algorithm

Specified by:

layout in interface GraphLayoutManager

Overrides:

layout in class AbstractGridLayout

visit

public boolean visit(Vertex vertexToVisit)

Implementation of the visit() method of the Visitor interface.

Specified by:

visit in interface Visitor

routeEdge

public void routeEdge(Graphics2D g2d,
                      VisualEdge vEdge)

Description copied from interface: GraphLayoutManager

Automatically called when a VisualEdge object needs to be drawn. This method is typically called from VisualEdgePainterImpl when the VisualGraph encapsulating the VisualEdge has a GraphLayoutManager set. Prior to calling this method, the GeneralPath of the VisualEdge is reset.

Implementations of this method should set the segments of the VisualEdge's GeneralPath by calling the methods moveTo(), lineTo(), curveTo(), and quadTo().

Specified by:

routeEdge in interface GraphLayoutManager

Parameters:

g2d - The Graphics2D object used for painting

addVertex

public void addVertex(VisualVertex vVertex)

Description copied from interface: GraphLayoutManager

Automatically called when a VisualVertex object has been added to the VisualGraph object being laid out.

Specified by:

addVertex in interface GraphLayoutManager

Parameters:

vVertex - The newly added VisualVertex object.

removeEdge

public void removeEdge(VisualEdge vEdge)

Description copied from interface: GraphLayoutManager

Automatically called when a VisualEdge object is about to be removed from the VisualGraph object being laid out.

Specified by:

removeEdge in interface GraphLayoutManager

Parameters:

vEdge - The VisualEdge object to be removed

removeVertex

public void removeVertex(VisualVertex vVertex)

Description copied from interface: GraphLayoutManager

Automatically called when a VisualVertex object is about to be removed from the VisualGraph object being laid out.

Specified by:

removeVertex in interface GraphLayoutManager

Parameters:

vVertex - The VisualVertex object to be removed.

addEdge

public void addEdge(VisualEdge vEdge)

Description copied from interface: GraphLayoutManager

Automatically called when a VisualEdge object has been added to the VisualGraph object being laid out.

Specified by:

addEdge in interface GraphLayoutManager

Parameters:

vEdge - The newly added VisualEdge object.