Class CachingEdgeRenderer<V,E>

java.lang.Object

edu.uci.ics.jung.visualization.renderers.BasicEdgeRenderer<V,E>

edu.uci.ics.jung.visualization.renderers.CachingEdgeRenderer<V,E>

All Implemented Interfaces:

LayoutChangeListener<V,E>, Renderer.Edge<V,E>, EventListener, ChangeListener

public class CachingEdgeRenderer<V,E>
extends BasicEdgeRenderer<V,E>
implements ChangeListener, LayoutChangeListener<V,E>

Nested Class Summary

Nested classes/interfaces inherited from interface Renderer.Edge

Renderer.Edge.NOOP

Field Summary

Fields

Modifier and Type	Field	Description
protected Set<E>	dirtyEdges
protected Map<E,Shape>	edgeShapeMap

Fields inherited from class BasicEdgeRenderer

edgeArrowRenderingSupport

Constructor Summary

Constructors

Constructor	Description
CachingEdgeRenderer(BasicVisualizationServer<V,E> vv)

Method Summary

Modifier and Type	Method	Description
protected void	drawSimpleEdge(RenderContext<V,E> rc, Layout<V,E> layout, E e)	Draws the edge e, whose endpoints are at (x1,y1) and (x2,y2), on the graphics context g.
void	layoutChanged(LayoutEvent<V,E> evt)
void	stateChanged(ChangeEvent evt)

Methods inherited from class BasicEdgeRenderer

getEdgeArrowRenderingSupport, paintEdge, prepareFinalEdgeShape, setEdgeArrowRenderingSupport

Methods inherited from class Object

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

Field Details

edgeShapeMap

protected Map<E,Shape> edgeShapeMap

dirtyEdges

protected Set<E> dirtyEdges

Constructor Details

CachingEdgeRenderer

public CachingEdgeRenderer(BasicVisualizationServer<V,E> vv)

Method Details

drawSimpleEdge

protected void drawSimpleEdge(RenderContext<V,E> rc,
 Layout<V,E> layout,
 E e)

Draws the edge e, whose endpoints are at (x1,y1) and (x2,y2), on the graphics context g. The Shape provided by the EdgeShapeFunction instance is scaled in the x-direction so that its width is equal to the distance between (x1,y1) and (x2,y2).

Overrides:

drawSimpleEdge in class BasicEdgeRenderer<V,E>

Parameters:

rc - the render context used for rendering the edge

layout - the layout instance which provides the edge's endpoints' coordinates

e - the edge to be drawn

stateChanged

public void stateChanged(ChangeEvent evt)

Specified by:

stateChanged in interface ChangeListener

layoutChanged

public void layoutChanged(LayoutEvent<V,E> evt)

Specified by:

layoutChanged in interface LayoutChangeListener<V,E>