/*
* (C) Copyright 2013-2018, by Barak Naveh and Contributors.
*
* JGraphT : a free Java graph-theory library
*
* See the CONTRIBUTORS.md file distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the
* GNU Lesser General Public License v2.1 or later
* which is available at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1-standalone.html.
*
* SPDX-License-Identifier: EPL-2.0 OR LGPL-2.1-or-later
*/
package org.ntlab.deltaViewer;
import com.mxgraph.model.mxCell;
import com.mxgraph.swing.*;
import com.mxgraph.util.mxConstants;
import com.mxgraph.util.mxLine;
import com.mxgraph.util.mxPoint;
import com.mxgraph.view.mxGraph;
import org.jgrapht.ext.*;
import org.jgrapht.graph.*;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.Ellipse2D;
/**
* A demo applet that shows how to use JGraphX to visualize JGraphT graphs. Applet based on
* JGraphAdapterDemo.
*
*/
public class JGraphTSample extends JApplet {
private static final Dimension DEFAULT_SIZE = new Dimension(530, 320);
private JGraphXAdapter<String, DefaultEdge> jgxAdapter;
/**
* An alternative starting point for this demo, to also allow running this applet as an
* application.
*
* @param args Command line arguments.
*/
/**
* @param args
*/
public static void main(String[] args)
{
//Build a frame, create a graph, and add the graph to the frame so you can actually see the graph.
JFrame frame = new JFrame("Branching graph");
frame.setSize(500, 500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mxGraph mxgraph= new mxGraph();
mxGraphComponent graphComponent= new mxGraphComponent(mxgraph);
frame.add(graphComponent, BorderLayout.CENTER);
frame.setVisible(true);
//No clue what this does but it is needed.
Object mxDefaultParent = mxgraph.getDefaultParent();
//Add a vertex to the graph in a transactional fashion. The vertex is actually a 'cell' in jgraphx terminology.
Object vertex=null;
Object A=null;
Object B=null;
Object C=null;
Object D=null;
Object E=null;
Object Am=null;
Object Bm=null;
Object Dm=null;
Object Em=null;
Object b=null;
Object c=null;
Object d=null;
Object e=null;
Object AmE=null;
Object BmE=null;
Object DmE=null;
mxgraph.getModel().beginUpdate();
try{
double xCor=225;
double yCor=100.0;
double width=70;
double height=70;
A=mxgraph.insertVertex(mxDefaultParent, "A", "A", xCor, yCor, width , height,"fillColor=blue"); //creates a blue vertex
B=mxgraph.insertVertex(mxDefaultParent, "B", "B", xCor-100, yCor+100, width, height,"fillColor=blue");
C=mxgraph.insertVertex(mxDefaultParent, "C", "C", xCor-200, yCor+200, width , height,"fillColor=blue");
D=mxgraph.insertVertex(mxDefaultParent, "D", "D", xCor+100, yCor+100, width , height,"fillColor=blue");
E=mxgraph.insertVertex(mxDefaultParent, "E", "E", xCor+200 , yCor+200, width, height,"fillColor=blue");
Am=mxgraph.insertVertex(mxDefaultParent, "Am", "A.m()", getXForCell(mxgraph, "A")+10, yCor+40, width-15 , height-40,"fillColor=blue; alignVertical=middle"); //creates a blue vertex
Bm=mxgraph.insertVertex(mxDefaultParent, "Bm", "B.getC()", getXForCell(mxgraph, "B")+10, yCor+140, width-15, height-50,"fillColor=blue");
Dm=mxgraph.insertVertex(mxDefaultParent, "Dm", "D.passB()", getXForCell(mxgraph, "D")+10, yCor+140, width-15 , height-50,"fillColor=blue");
Em=mxgraph.insertVertex(mxDefaultParent, "Em", "E.setC()", getXForCell(mxgraph, "E")+10 , yCor+240, width-15, height-50,"fillColor=blue");
b = mxgraph.insertEdge(mxDefaultParent, "b", "b", A, B, "edgeStyle=elbowEdgeStyle;elbow=horizontal;"
+ "exitX=0.5;exitY=1;exitPerimeter=1;entryX=-10;entryY=-10;entryPerimeter=1;");
c = mxgraph.insertEdge(mxDefaultParent, "c", "c", B, C);
d = mxgraph.insertEdge(mxDefaultParent, "d", "d", A, D);
e = mxgraph.insertEdge(mxDefaultParent, "e", "e", D, E);
AmE = mxgraph.insertEdge(mxDefaultParent, "AmE", "", Am, Bm);
BmE = mxgraph.insertEdge(mxDefaultParent, "BmE", "", Bm, Dm);
DmE = mxgraph.insertEdge(mxDefaultParent, "DmE", "", Dm, Em);
final Graphics2D g = (Graphics2D)graphComponent.getGraphics();
// mxGraphics2DCanvas canvas = new mxGraphics2DCanvas(g);
// canvas.paintPolyline(new mxPoint[] {new mxPoint(100,100),new mxPoint(500,500)}, true);
Runnable r = new Runnable() {
public void run() {
g.setColor(Color.GREEN);
Stroke dashed = new BasicStroke(1, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 0, new float[]{9}, 0);
g.setStroke(dashed);
g.drawLine(0, 0, 500, 500);
}
};
if (!SwingUtilities.isEventDispatchThread()) {
SwingUtilities.invokeLater(r);
} else {
r.run();
}
}
finally{
mxgraph.getModel().endUpdate();
}
/*Given a cell, we can change it's style attributes, for example the color. NOTE that you have to call the graphComponent.refresh() function, otherwise you won't see the difference!*/
mxgraph.setCellStyles(mxConstants.STYLE_FILLCOLOR, "white", new Object[]{A, B, C, D, E, Am, Bm, Dm, Em}); //changes the color to red
mxgraph.setCellStyles(mxConstants.STYLE_SHAPE, mxConstants.SHAPE_ELLIPSE, new Object[]{A, B, C, D, E});
mxgraph.setCellStyles(mxConstants.STYLE_PERIMETER, mxConstants.PERIMETER_ELLIPSE, new Object[]{A, B, C, D, E});
mxgraph.setCellStyles(mxConstants.STYLE_EDGE, mxConstants.SHAPE_CURVE, new Object[] {AmE, BmE, DmE, b, c, d, e});
mxgraph.setCellStyleFlags(mxConstants.STYLE_DASHED, 1, true, new Object[] {AmE, BmE, DmE});
// Adds animation to edge shape and makes "pipe" visible
((mxCell)b).setAttribute("path", ".flow {"
+ "stroke-dasharray: 8;"
+ "animation: dash 0.5s linear;"
+ "animation-iteration-count: infinite;"
+ "}"
+ "@keyframes dash {"
+ "to {"
+ "stroke-dashoffset: -16;"
+ "}");
graphComponent.refresh();
}
private static double getXForCell(mxGraph graph, String id) {
double res = -1;
graph.clearSelection();
graph.selectAll();
Object[] cells = graph.getSelectionCells();
for (Object object : cells) {
mxCell cell = (mxCell) object;
if (id.equals(cell.getId())) {
res = cell.getGeometry().getX();
}
}
graph.clearSelection();
return res;
}
class GPanel extends JPanel {
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
int w = this.getWidth();
int h = this.getHeight();
for(int i = 0;i < 10;i++){
Ellipse2D shape = new Ellipse2D.Double(0,0,w,h - i * (w / 10));
g2.setPaint(new Color(0,0,255,25));
g2.fill(shape);
}
}
}
}
