bundles/common/org.eclipse.apogy.common.topology.ui/src/org/eclipse/apogy/common/topology/ui/views/TopologyPresentationRegistryView.java

/*******************************************************************************
 * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency
 * 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:
 *     Pierre Allard, 
 *     Regent L'Archeveque,
<<<<<<< HEAD
 *     Sebastien Gemme
 * 
=======
 *     Sebastien Gemme  - initial API and implementation
 *     
>>>>>>> refs/heads/eclipse_pa
 * SPDX-License-Identifier: EPL-1.0
 *     
 *******************************************************************************/
package org.eclipse.apogy.common.topology.ui.views;

import org.eclipse.apogy.common.topology.ui.Activator;
import org.eclipse.apogy.common.topology.ui.composites.NodePresentationListComposite;
import org.eclipse.apogy.common.topology.ui.composites.TopologyPresentationSetListComposite;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.util.EContentAdapter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.part.ViewPart;
import org.eclipse.ui.progress.UIJob;

public class TopologyPresentationRegistryView extends ViewPart {

	private NodePresentationListComposite nodePresentationListComposite;
	private TopologyPresentationSetListComposite topologyPresentationSetListComposite;

	private Adapter topologyPresentationRegistryAdapter = null;

	@Override
	public void createPartControl(Composite parent) {
		GridLayout gridLayout = new GridLayout(2, true);
		parent.setLayout(gridLayout);

		Label nodeListLabel = new Label(parent, SWT.NONE);
		GridData gridData1 = new GridData(SWT.LEFT, SWT.FILL, true, false, 1, 1);
		nodeListLabel.setLayoutData(gridData1);
		nodeListLabel.setText("Node Presentations");

		Label topologyPresentationSetLabel = new Label(parent, SWT.NONE);
		GridData gridData2 = new GridData(SWT.LEFT, SWT.FILL, true, false, 1, 1);
		topologyPresentationSetLabel.setLayoutData(gridData2);
		topologyPresentationSetLabel.setText("Topology Presentation Sets");

		this.nodePresentationListComposite = new NodePresentationListComposite(parent, SWT.NONE);
		GridData gridData3 = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
		this.nodePresentationListComposite.setLayoutData(gridData3);
		this.nodePresentationListComposite
				.setNodePresentationSet(Activator.getTopologyPresentationRegistry().getNodePresentationList());

		this.topologyPresentationSetListComposite = new TopologyPresentationSetListComposite(parent, SWT.NONE);
		GridData gridData4 = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
		this.topologyPresentationSetListComposite.setLayoutData(gridData4);
		this.topologyPresentationSetListComposite.setTopologyPresentationSet(
				Activator.getTopologyPresentationRegistry().getTopologyPresentationSetList());

		Activator.getTopologyPresentationRegistry().eAdapters().add(getTopologyPresentationRegistryAdapter());

		parent.addDisposeListener(new DisposeListener() {
			@Override
			public void widgetDisposed(DisposeEvent e) {
				Activator.getTopologyPresentationRegistry().eAdapters()
						.remove(getTopologyPresentationRegistryAdapter());

				TopologyPresentationRegistryView.this.nodePresentationListComposite.setNodePresentationSet(null);
				TopologyPresentationRegistryView.this.topologyPresentationSetListComposite
						.setTopologyPresentationSet(null);
			}
		});
	}

	@Override
	public void setFocus() {
	}

	private Adapter getTopologyPresentationRegistryAdapter() {
		if (this.topologyPresentationRegistryAdapter == null) {
			this.topologyPresentationRegistryAdapter = new EContentAdapter() {
				@Override
				public void notifyChanged(Notification notification) {
					super.notifyChanged(notification);

					// Force update on topologyPresentationSetListComposite
					UIJob job = new UIJob("TopologyPresentationRegistryView Update") {
						@Override
						public IStatus runInUIThread(IProgressMonitor monitor) {
							if (!TopologyPresentationRegistryView.this.nodePresentationListComposite.isDisposed())
								TopologyPresentationRegistryView.this.nodePresentationListComposite
										.setNodePresentationSet(
												Activator.getTopologyPresentationRegistry().getNodePresentationList());
							if (!TopologyPresentationRegistryView.this.topologyPresentationSetListComposite
									.isDisposed())
								TopologyPresentationRegistryView.this.topologyPresentationSetListComposite
										.setTopologyPresentationSet(Activator.getTopologyPresentationRegistry()
												.getTopologyPresentationSetList());
							return Status.OK_STATUS;
						}
					};
					job.schedule();
				}
			};
		}
		return this.topologyPresentationRegistryAdapter;
	}

}