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/*******************************************************************************
* Copyright (c) 2011, 2014 THALES GLOBAL SERVICES 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.business.internal.command;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.core.commands.SetConnectionAnchorsCommand;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.IdentityAnchor;
import org.eclipse.gmf.runtime.notation.NotationFactory;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.sirius.diagram.description.tool.ReconnectionKind;
import org.eclipse.sirius.diagram.ui.business.api.query.EdgeQuery;
import org.eclipse.sirius.diagram.ui.business.internal.edit.helpers.EdgeReconnectionHelper;
import org.eclipse.sirius.diagram.ui.internal.operation.CenterEdgeEndModelChangeOperation;
import org.eclipse.sirius.ext.base.Option;
/**
* A custom SetConnectionAnchorsCommand used when edge reconnection is applied
* by a reconnection tool (now executed in precommit).
*
* @author <a href="mailto:steve.monnier@obeo.fr">Steve Monnier</a>
*
* @since 0.9.0
*/
public class SiriusSetConnectionAnchorsCommand extends SetConnectionAnchorsCommand {
/**
* Helper used to access the edge after reconnection.
*/
private EdgeReconnectionHelper reconnectingEdgeHelper;
/**
* SiriusSetConnectionAnchorsCommand constructor.
*
* @param editingDomain
* the current editing domain
* @param label
* command label
* @param reconnectionTarget
* the edge on which we are reconnecting
* @param reconnectionTargetEdges
* the incoming(reconnectingSource as
* false)/outgoing(reconnectingSource as true) edges of the edge
* on which we are reconnecting
* @param reconnectionKind
* indicates if it is a reconnection of the
* source(ReconnectionKind.RECONNECT_SOURCE) or the
* target(ReconnectionKind.RECONNECT_TARGET)
*/
public SiriusSetConnectionAnchorsCommand(TransactionalEditingDomain editingDomain, String label, View reconnectionTarget, List<Edge> reconnectionTargetEdges, ReconnectionKind reconnectionKind) {
super(editingDomain, label);
this.reconnectingEdgeHelper = new EdgeReconnectionHelper(reconnectionTarget, reconnectionTargetEdges, reconnectionKind);
}
/**
* Overridden because the tool execution is now done in precommit.
* Therefore, we can not use the getEdgeAdaptor() anymore.
*
* {@inheritDoc}
*/
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor progressMonitor, IAdaptable info) throws ExecutionException {
CommandResult commandResult = CommandResult.newOKCommandResult();
if (getEdgeAdaptor() != null) {
commandResult = super.doExecuteWithResult(progressMonitor, info);
} else {
Edge edge = reconnectingEdgeHelper.getReconnectedEdge();
// The reconnect tool did not necessary reconnect the edge with the
// expected new source or target. In the case where we did not find
// out the
// reconnected edge, there is nothing to do here.
if (edge != null) {
// If there is tree brothers on the new source, we must use the
// existing sourceAnchor instead of the
// <code>newSourceTerminal</code> parameter
EdgeQuery edgeQuery = new EdgeQuery(edge);
if (edgeQuery.isEdgeOnTreeOnSourceSide()) {
Option<IdentityAnchor> optionalSourceBortherAnchor = edgeQuery.getSourceAnchorOfFirstBrotherWithSameSource();
if (optionalSourceBortherAnchor.some()) {
setNewSourceTerminal(optionalSourceBortherAnchor.get().getId());
}
}
updateSourceAnchor(edge);
// If there is tree brothers on the new target, we must use the
// existing targetAnchor instead of the
// <code>newTargetTerminal</code> parameter
if (edgeQuery.isEdgeOnTreeOnTargetSide()) {
Option<IdentityAnchor> optionalTargetBortherAnchor = edgeQuery.getTargetAnchorOfFirstBrotherWithSameTarget();
if (optionalTargetBortherAnchor.some()) {
setNewTargetTerminal(optionalTargetBortherAnchor.get().getId());
}
}
updateTargetAnchor(edge);
CenterEdgeEndModelChangeOperation centerEdgeEndModelChangeOperation = new CenterEdgeEndModelChangeOperation(edge);
centerEdgeEndModelChangeOperation.execute();
}
}
return commandResult;
}
private void updateSourceAnchor(Edge edge) {
if (getNewSourceTerminal() != null) {
if (getNewSourceTerminal().length() == 0)
edge.setSourceAnchor(null);
else {
IdentityAnchor a = (IdentityAnchor) edge.getSourceAnchor();
if (a == null)
a = NotationFactory.eINSTANCE.createIdentityAnchor();
a.setId(getNewSourceTerminal());
edge.setSourceAnchor(a);
}
}
}
private void updateTargetAnchor(Edge edge) {
if (getNewTargetTerminal() != null) {
if (getNewTargetTerminal().length() == 0)
edge.setTargetAnchor(null);
else {
IdentityAnchor a = (IdentityAnchor) edge.getTargetAnchor();
if (a == null)
a = NotationFactory.eINSTANCE.createIdentityAnchor();
a.setId(getNewTargetTerminal());
edge.setTargetAnchor(a);
}
}
}
}
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