Example for testing connection routers

1 files changed, 81 insertions, 0 deletions

diff --git a/org.eclipse.zest.examples/src/org/eclipse/zest/examples/swt/ManhattanLayoutGraphSnippet.java b/org.eclipse.zest.examples/src/org/eclipse/zest/examples/swt/ManhattanLayoutGraphSnippet.java
new file mode 100644
index 0000000..acf003f
--- a/dev/null
+++ b/org.eclipse.zest.examples/src/org/eclipse/zest/examples/swt/ManhattanLayoutGraphSnippet.java
@@ -0,0 +1,81 @@
+/*******************************************************************************
+ * Copyright 2005-2007, CHISEL Group, University of Victoria, Victoria, BC,
+ * Canada. All rights reserved. This program and the accompanying materials are
+ * made available under the terms of the Eclipse Public License v1.0 which
+ * accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors: The Chisel Group, University of Victoria
+ ******************************************************************************/
+package org.eclipse.zest.examples.swt;
+
+import org.eclipse.draw2d.ConnectionRouter;
+import org.eclipse.draw2d.ManhattanConnectionRouter;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.zest.core.widgets.Graph;
+import org.eclipse.zest.core.widgets.GraphConnection;
+import org.eclipse.zest.core.widgets.GraphNode;
+import org.eclipse.zest.layouts.algorithms.SpringLayoutAlgorithm;
+
+/**
+ * This snippet shows how to update the default connection router - modified
+ * from PaintSnippet example.
+ * 
+ * @author Zoltan Ujhelyi
+ * @author Ian Bull - initial commit
+ * 
+ */
+public class ManhattanLayoutGraphSnippet {
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		// Create the shell
+		final Display d = new Display();
+		final Shell shell = new Shell(d);
+		shell.setText("GraphSnippet1");
+		shell.setLayout(new FillLayout());
+		shell.setSize(400, 400);
+
+		Button b = new Button(shell, SWT.PUSH);
+		b.setText("Change Router");
+
+		final Graph g = new Graph(shell, SWT.NONE);
+
+		GraphNode n = new GraphNode(g, SWT.NONE, "Paper");
+		GraphNode n2 = new GraphNode(g, SWT.NONE, "Rock");
+		GraphNode n3 = new GraphNode(g, SWT.NONE, "Scissors");
+		new GraphConnection(g, SWT.NONE, n, n2);
+		new GraphConnection(g, SWT.NONE, n2, n3);
+		new GraphConnection(g, SWT.NONE, n3, n);
+		g.setLayoutAlgorithm(new SpringLayoutAlgorithm(), true);
+
+		b.addSelectionListener(new SelectionAdapter() {
+			ConnectionRouter router = null;
+
+			public void widgetSelected(SelectionEvent e) {
+				if (router == null) {
+					router = new ManhattanConnectionRouter();
+				} else {
+					router = null;
+				}
+				g.applyConnectionRouter(router);
+			}
+
+		});
+
+		shell.open();
+		while (!shell.isDisposed()) {
+			while (!d.readAndDispatch()) {
+				d.sleep();
+			}
+		}
+	}
+}