/* * @(#)HelloWorld.java 3.3 23-APR-04 * * Copyright (c) 2001-2004, Gaudenz Alder All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ package org.jgraph.example; import java.awt.Color; import java.awt.geom.Rectangle2D; import javax.swing.BorderFactory; import javax.swing.JFrame; import javax.swing.JScrollPane; import org.jgraph.JGraph; import org.jgraph.graph.DefaultEdge; import org.jgraph.graph.DefaultGraphCell; import org.jgraph.graph.DefaultGraphModel; import org.jgraph.graph.GraphConstants; import org.jgraph.graph.GraphModel; public class HelloWorld { public static void main(String[] args) { // Construct Model and Graph GraphModel model = new DefaultGraphModel(); JGraph graph = new JGraph(model); // Control-drag should clone selection graph.setCloneable(true); // Enable edit without final RETURN keystroke graph.setInvokesStopCellEditing(true); // When over a cell, jump to its default port (we only have one, anyway) graph.setJumpToDefaultPort(true); // Insert all three cells in one call, so we need an array to store them DefaultGraphCell[] cells = new DefaultGraphCell[3]; // Create Hello Vertex cells[0] = createVertex("Hello", 20, 20, 40, 20, null, false); // Create World Vertex cells[1] = createVertex("World", 140, 140, 40, 20, Color.ORANGE, true); // Create Edge DefaultEdge edge = new DefaultEdge(); // Fetch the ports from the new vertices, and connect them with the edge edge.setSource(cells[0].getChildAt(0)); edge.setTarget(cells[1].getChildAt(0)); cells[2] = edge; // Set Arrow Style for edge int arrow = GraphConstants.ARROW_CLASSIC; GraphConstants.setLineEnd(edge.getAttributes(), arrow); GraphConstants.setEndFill(edge.getAttributes(), true); // Insert the cells via the cache, so they get selected graph.getGraphLayoutCache().insert(cells); // Show in Frame JFrame frame = new JFrame(); frame.getContentPane().add(new JScrollPane(graph)); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setVisible(true); } public static DefaultGraphCell createVertex(String name, double x, double y, double w, double h, Color bg, boolean raised) { // Create vertex with the given name DefaultGraphCell cell = new DefaultGraphCell(name); // Set bounds GraphConstants.setBounds(cell.getAttributes(), new Rectangle2D.Double( x, y, w, h)); // Set fill color if (bg != null) { GraphConstants.setGradientColor(cell.getAttributes(), bg); GraphConstants.setOpaque(cell.getAttributes(), true); } // Set raised border if (raised) GraphConstants.setBorder(cell.getAttributes(), BorderFactory .createRaisedBevelBorder()); else // Set black border GraphConstants.setBorderColor(cell.getAttributes(), Color.black); // Add a Floating Port cell.addPort(); return cell; } }