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/*****************************************************************************
* Copyright (c) 2014 CEA LIST.
*
* 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:
*
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.common.commands;
import java.io.ObjectInputStream.GetField;
import java.util.Map;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.draw2d.IFigure;
import org.eclipse.emf.transaction.RunnableWithResult;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gef.editparts.AbstractConnectionEditPart;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateConnectionViewRequest;
import org.eclipse.gmf.runtime.diagram.ui.util.EditPartUtil;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.gmfdiag.common.Activator;
import org.eclipse.swt.widgets.Display;
/**
*
* This command is used to fix the edge anchor just after the creation of the edge, in order to get anchor on the sides of the source
* and target figure and not somewhere inside the figure.
*
* This fix allows to avoid to get source (or target) location moving instead you are moving the target (or source) anchor
*
* see bug 430702: [Diagram] Moving source of a link moves the target too.
*/
public class FixEdgeAnchorAfterCreationDeferredCommand extends AbstractFixEdgeAnchorDeferredCommand {
/**
* the request used to create connection view
*/
protected CreateConnectionViewRequest request;
/**
*
* Constructor.
*
* @param editingDomain
* the editing domain
* @param request
* the creation request
* @param containerEP
* the diagram edit part
*/
public FixEdgeAnchorAfterCreationDeferredCommand(final TransactionalEditingDomain editingDomain, final CreateConnectionViewRequest request, final IGraphicalEditPart containerEP) {
super(editingDomain, "Fix Edge Anchor after creation", containerEP); //$NON-NLS-1$
this.request = request;
}
/**
* Executes a fix anchor command for the created edge
*
*/
protected CommandResult doExecuteWithResult(IProgressMonitor progressMonitor, IAdaptable info) throws ExecutionException {
//we execute all ui thread
while(Display.getDefault().readAndDispatch());
//we refresh the editparts
RefreshConnectionElementsRunnable refreshRunnable = new RefreshConnectionElementsRunnable(this.request, getContainerEP());
EditPartUtil.synchronizeRunnableToMainThread(getContainerEP(), refreshRunnable);
//we do the work
final AbstractConnectionEditPart connectionEP = refreshRunnable.getResult();
if(connectionEP != null) {
final CompoundCommand cc = new CompoundCommand("Fix connections anchors"); //$NON-NLS-1$
addFixAnchorCommand(connectionEP, cc);
if(cc.canExecute()) {
cc.execute();
} else {
Activator.log.warn("Command to fix the anchors is null"); //$NON-NLS-1$
}
}
return CommandResult.newOKCommandResult();
}
/**
*
* @see org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand#cleanup()
*
*/
protected void cleanup() {
this.request = null;
super.cleanup();
}
/**
*
* @see org.eclipse.core.commands.operations.AbstractOperation#canExecute()
*
* @return
*/
@Override
public boolean canExecute() {
return super.canExecute() && this.request != null;
}
/**
*
* The runnable used to refresh the views
*
*/
private static class RefreshConnectionElementsRunnable extends AbstractRefreshConnectionElementsRunnable<AbstractConnectionEditPart> {
/**
* the connection request
*/
final CreateConnectionViewRequest request;
/**
*
* Constructor.
*
* @param request
* the request used to create the connection view
* @param containerEP
* the edit part owning the new connection editpart
* @param containerFigure
*/
public RefreshConnectionElementsRunnable(final CreateConnectionViewRequest request, final IGraphicalEditPart containerEP) {
super(containerEP);
this.request = request;
}
/**
*
* @see java.lang.Runnable#run()
*
*/
public void run() {
getContainerEditPart().refresh();
// We update the figure world
getContainerFigure().invalidate();
getContainerFigure().validate();
final View view = (View)this.request.getConnectionViewDescriptor().getAdapter(View.class);
if(view != null) {
final Map<?, ?> epRegistry = getContainerEditPart().getRoot().getViewer().getEditPartRegistry();
Object editPart = epRegistry.get(view);
if(editPart instanceof AbstractConnectionEditPart) {
setResult((AbstractConnectionEditPart)editPart);
refreshConnection(getResult());
}
}
setStatus(Status.OK_STATUS);
}
};
}
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