| /****************************************************************************** |
| * Copyright (c) 2005 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.diagram.ui.internal.editpolicies; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.ListIterator; |
| import java.util.Map; |
| |
| import org.eclipse.draw2d.Connection; |
| import org.eclipse.gef.EditPart; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gef.requests.BendpointRequest; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.ConnectionBendpointEditPolicy; |
| import org.eclipse.gmf.runtime.draw2d.ui.internal.routers.ForestRouter; |
| import org.eclipse.gmf.runtime.draw2d.ui.internal.routers.TreeRouter; |
| import org.eclipse.gmf.runtime.gef.ui.internal.editpolicies.LineMode; |
| import org.eclipse.gmf.runtime.notation.Edge; |
| |
| |
| /** |
| * @author sshaw |
| * |
| * Override to specify the default LineMode as constrained for Tree connections. |
| */ |
| public class TreeConnectionBendpointEditPolicy |
| extends ConnectionBendpointEditPolicy { |
| |
| /** |
| * Default constructor |
| */ |
| public TreeConnectionBendpointEditPolicy() { |
| super(LineMode.ORTHOGONAL_CONSTRAINED); |
| } |
| |
| static private Map connections = new HashMap(); |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.gef.EditPolicy#activate() |
| */ |
| public void activate() { |
| connections.put(getConnection(), getHost()); |
| super.activate(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.gef.EditPolicy#deactivate() |
| */ |
| public void deactivate() { |
| connections.remove(getConnection()); |
| super.deactivate(); |
| } |
| |
| /** |
| * Method getBendpointsChangedCommand. |
| * This method will return a SetBendpointsCommand with the points retrieved from |
| * the user feedback in the figure. |
| * @param request BendpointRequest from the user gesture for moving / creating a bendpoint |
| * @return Command SetBendpointsCommand that contains the point changes for the connection. |
| */ |
| protected Command getBendpointsChangedCommand(BendpointRequest request) { |
| Command cmd = super.getBendpointsChangedCommand(request); |
| if (cmd == null) |
| return null; |
| |
| //synch constraints up with the rest of the tree |
| if (getConnection().getConnectionRouter() instanceof ForestRouter) { |
| ForestRouter forestRouter = (ForestRouter)getConnection().getConnectionRouter(); |
| TreeRouter treeRouter = forestRouter.getSubRouter(getConnection()); |
| if (treeRouter != null) { |
| List connList = treeRouter.getConnectionList(); |
| ListIterator li = connList.listIterator(); |
| while (li.hasNext()) { |
| Connection conn = (Connection)li.next(); |
| if (!conn.equals(getConnection())) { |
| EditPart connectionEP = (EditPart)connections.get(conn); |
| if (connectionEP != null) { |
| Edge connectionView = (Edge) connectionEP.getModel(); |
| Command cmd1 = getBendpointsChangedCommand(conn, connectionView); |
| if (cmd1 != null) |
| cmd = cmd.chain(cmd1); |
| } |
| } |
| } |
| } |
| } |
| |
| return cmd; |
| } |
| } |