/*
* Copyright (c) 2003, the JUNG Project and the Regents of the University of
* California All rights reserved.
*
* This software is open-source under the BSD license; see either "license.txt"
* or http://jung.sourceforge.net/license.txt for a description.
*
*/
package edu.uci.ics.jung.samples;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;
import javax.swing.BorderFactory;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import org.apache.commons.collections15.Transformer;
import edu.uci.ics.jung.algorithms.layout.FRLayout;
import edu.uci.ics.jung.graph.DirectedGraph;
import edu.uci.ics.jung.graph.DirectedSparseMultigraph;
import edu.uci.ics.jung.graph.util.EdgeType;
import edu.uci.ics.jung.visualization.GraphZoomScrollPane;
import edu.uci.ics.jung.visualization.VisualizationViewer;
import edu.uci.ics.jung.visualization.control.CrossoverScalingControl;
import edu.uci.ics.jung.visualization.control.DefaultModalGraphMouse;
import edu.uci.ics.jung.visualization.control.ScalingControl;
import edu.uci.ics.jung.visualization.decorators.PickableEdgePaintTransformer;
import edu.uci.ics.jung.visualization.decorators.ToStringLabeller;
import edu.uci.ics.jung.visualization.renderers.DefaultEdgeLabelRenderer;
import edu.uci.ics.jung.visualization.renderers.DefaultVertexLabelRenderer;
/**
* Demonstrates the use of images on graph edge labels.
*
* @author Tom Nelson
*
*/
public class ImageEdgeLabelDemo extends JApplet {
/**
*
*/
private static final long serialVersionUID = -4332663871914930864L;
private static final int VERTEX_COUNT=11;
/**
* the graph
*/
DirectedGraph<Number, Number> graph;
/**
* the visual component and renderer for the graph
*/
VisualizationViewer<Number, Number> vv;
public ImageEdgeLabelDemo() {
// create a simple graph for the demo
graph = new DirectedSparseMultigraph<Number,Number>();
createGraph(VERTEX_COUNT);
FRLayout<Number, Number> layout = new FRLayout<Number, Number>(graph);
layout.setMaxIterations(100);
vv = new VisualizationViewer<Number, Number>(layout, new Dimension(400,400));
vv.getRenderContext().setEdgeDrawPaintTransformer(new PickableEdgePaintTransformer<Number>(vv.getPickedEdgeState(), Color.black, Color.cyan));
vv.setBackground(Color.white);
vv.getRenderContext().setVertexLabelRenderer(new DefaultVertexLabelRenderer(Color.cyan));
vv.getRenderContext().setEdgeLabelRenderer(new DefaultEdgeLabelRenderer(Color.cyan));
vv.getRenderContext().setEdgeLabelTransformer(new Transformer<Number,String>() {
URL url = getClass().getResource("/images/lightning-s.gif");
public String transform(Number input) {
return "<html><img src="+url+" height=10 width=21>";
}});
// add a listener for ToolTips
vv.setVertexToolTipTransformer(new ToStringLabeller<Number>());
vv.setEdgeToolTipTransformer(new ToStringLabeller<Number>());
Container content = getContentPane();
final GraphZoomScrollPane panel = new GraphZoomScrollPane(vv);
content.add(panel);
final DefaultModalGraphMouse<Number, Number> graphMouse = new DefaultModalGraphMouse<Number, Number>();
vv.setGraphMouse(graphMouse);
vv.addKeyListener(graphMouse.getModeKeyListener());
final ScalingControl scaler = new CrossoverScalingControl();
JButton plus = new JButton("+");
plus.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
scaler.scale(vv, 1.1f, vv.getCenter());
}
});
JButton minus = new JButton("-");
minus.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
scaler.scale(vv, 1/1.1f, vv.getCenter());
}
});
JComboBox modeBox = graphMouse.getModeComboBox();
JPanel modePanel = new JPanel();
modePanel.setBorder(BorderFactory.createTitledBorder("Mouse Mode"));
modePanel.add(modeBox);
JPanel scaleGrid = new JPanel(new GridLayout(1,0));
scaleGrid.setBorder(BorderFactory.createTitledBorder("Zoom"));
JPanel controls = new JPanel();
scaleGrid.add(plus);
scaleGrid.add(minus);
controls.add(scaleGrid);
controls.add(modePanel);
content.add(controls, BorderLayout.SOUTH);
}
/**
* create some vertices
* @param count how many to create
* @return the Vertices in an array
*/
private void createGraph(int vertexCount) {
for (int i = 0; i < vertexCount; i++) {
graph.addVertex(i);
}
int j=0;
graph.addEdge(j++, 0, 1, EdgeType.DIRECTED);
graph.addEdge(j++, 3, 0, EdgeType.DIRECTED);
graph.addEdge(j++, 0, 4, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 5, EdgeType.DIRECTED);
graph.addEdge(j++, 5, 3, EdgeType.DIRECTED);
graph.addEdge(j++, 2, 1, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 1, EdgeType.DIRECTED);
graph.addEdge(j++, 8, 2, EdgeType.DIRECTED);
graph.addEdge(j++, 3, 8, EdgeType.DIRECTED);
graph.addEdge(j++, 6, 7, EdgeType.DIRECTED);
graph.addEdge(j++, 7, 5, EdgeType.DIRECTED);
graph.addEdge(j++, 0, 9, EdgeType.DIRECTED);
graph.addEdge(j++, 9, 8, EdgeType.DIRECTED);
graph.addEdge(j++, 7, 6, EdgeType.DIRECTED);
graph.addEdge(j++, 6, 5, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 2, EdgeType.DIRECTED);
graph.addEdge(j++, 5, 4, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 10, EdgeType.DIRECTED);
graph.addEdge(j++, 10, 4, EdgeType.DIRECTED);
}
/**
* a driver for this demo
*/
public static void main(String[] args) {
JFrame frame = new JFrame();
Container content = frame.getContentPane();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
content.add(new ImageEdgeLabelDemo());
frame.pack();
frame.setVisible(true);
}
}
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