Package org.jungrapht.visualization.util

Class IconCache<V>

java.lang.Object

org.jungrapht.visualization.util.IconCache<V>

Type Parameters:

V - the vertex type

All Implemented Interfaces:

Function<V,Icon>

public class IconCache<V>
extends Object
implements Function<V,Icon>

a lazy-map backed Function that creates an image icon for each vertex

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	IconCache.Builder<V>	Builder for IconCache
static interface	IconCache.Decorator<V>	extend this interface to apply 'decorations' to the vertex labels after they are drawn.
static interface	IconCache.Stylist<V>	allows for functional interface method to set the font, colors, etc for the vertex JLabel.

Field Summary

Fields

Modifier and Type	Field	Description
protected Function<V,Paint>	colorFunction
protected JLabel	label
protected IconCache.Decorator<V>	postDecorator
protected IconCache.Decorator<V>	preDecorator
protected Map<RenderingHints.Key,Object>	renderingHints
protected IconCache.Stylist<V>	stylist
protected Function<V,String>	vertexLabelFunction
protected Function<V,Shape>	vertexShapeFunction

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	IconCache(IconCache.Builder<V> builder)

Method Summary

Modifier and Type	Method	Description
Icon	apply(V n)
static <V> IconCache.Builder<V>	builder(Function<V,String> vertexLabelFunction)
protected void	cacheIconFor(JLabel label, V vertex, Function<V,String> vertexLabelFunction, Function<V,Paint> colorFunction)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Field Detail

vertexLabelFunction

protected Function<V,String> vertexLabelFunction

vertexShapeFunction

protected Function<V,Shape> vertexShapeFunction

label

protected JLabel label

renderingHints

protected Map<RenderingHints.Key,Object> renderingHints

colorFunction

protected Function<V,Paint> colorFunction

stylist

protected IconCache.Stylist<V> stylist

preDecorator

protected IconCache.Decorator<V> preDecorator

postDecorator

protected IconCache.Decorator<V> postDecorator

Constructor Detail

IconCache

protected IconCache(IconCache.Builder<V> builder)

Parameters:

builder - the configured Builder

Method Detail

builder

public static <V> IconCache.Builder<V> builder(Function<V,String> vertexLabelFunction)

Type Parameters:

V - vertex type

Parameters:

vertexLabelFunction - function to return String labels for vertices

Returns:

the Builder

apply

public Icon apply(V n)

Specified by:

apply in interface Function<V,Icon>

cacheIconFor

protected void cacheIconFor(JLabel label,
                            V vertex,
                            Function<V,String> vertexLabelFunction,
                            Function<V,Paint> colorFunction)