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package com.jgraph.example.mycellview;
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;
/**
* This example is an evolution of the hello world example. This time,
* we demonstrate the use of a custom graph cell view factory able to
* provide different view indirections for various cells. Then all is about
* using Java2D features in the view renderer to get draw the shape you want.
*
* @author rvalyi
*/
public class MyCellView {
public static void main(String[] args) {
// Switch off D3D because of Sun XOR painting bug
// See http://www.jgraph.com/forum/viewtopic.php?t=4066
System.setProperty("sun.java2d.d3d", "false");
// Construct Model and Graph
GraphModel model = new DefaultGraphModel();
JGraph graph = new JGraph(model);
graph.getGraphLayoutCache().setFactory(new GPCellViewFactory());
// 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[7];
cells[0] = createVertex(20, 20, 60, 30, Color.BLUE, false, new DefaultGraphCell("hello"), "com.jgraph.example.mycellview.JGraphEllipseView");
cells[1] = createVertex(140, 25, 40, 20, null, false, new DefaultGraphCell("brave"), null);
cells[2] = createVertex(20, 145, 40, 20, null, true, new DefaultGraphCell("new"), null);
cells[3] = createVertex(140, 140, 60, 30, Color.ORANGE, false, new DefaultGraphCell("world"), "com.jgraph.example.mycellview.RoundRectView");
// Create Edges
DefaultEdge edge0 = new DefaultEdge();
edge0.setSource(cells[0].getChildAt(0));
edge0.setTarget(cells[1].getChildAt(0));
cells[4] = edge0;
GraphConstants.setLineEnd(edge0.getAttributes(), GraphConstants.ARROW_CIRCLE);
GraphConstants.setEndFill(edge0.getAttributes(), true);
DefaultEdge edge1 = new DefaultEdge();
edge1.setSource(cells[1].getChildAt(0));
edge1.setTarget(cells[2].getChildAt(0));
cells[5] = edge1;
GraphConstants.setLineEnd(edge1.getAttributes(), GraphConstants.ARROW_CLASSIC);
GraphConstants.setEndFill(edge1.getAttributes(), true);
DefaultEdge edge2 = new DefaultEdge();
edge2.setSource(cells[2].getChildAt(0));
edge2.setTarget(cells[3].getChildAt(0));
cells[6] = edge2;
GraphConstants.setLineEnd(edge2.getAttributes(), GraphConstants.ARROW_DIAMOND);
GraphConstants.setEndFill(edge2.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);
graph.setSelectionCell(edge0);//deselecting the cells emphasis makes it easier to see their shape
}
public static DefaultGraphCell createVertex(double x,
double y, double w, double h, Color bg, boolean raised, DefaultGraphCell cell, String viewClass) {
// set the view class (indirection for the renderer and the editor)
if (viewClass != null)
GPCellViewFactory.setViewClass(cell.getAttributes(), viewClass);
// 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;
}
}
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