bundles/common/org.eclipse.apogy.common.topology.ui.viewer/src-gen-custom/org/eclipse/apogy/common/topology/ui/viewer/impl/TopologyViewerRegistryCustomImpl.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,
 *     Sebastien Gemme  - initial API and implementation
 *     
 * SPDX-License-Identifier: EPL-1.0
 *     
 *******************************************************************************/
package org.eclipse.apogy.common.topology.ui.viewer.impl;

import org.eclipse.apogy.common.topology.ui.NodeSelection;
import org.eclipse.apogy.common.topology.ui.viewer.ITopologyViewer;
import org.eclipse.apogy.common.topology.ui.viewer.ITopologyViewerListener;
import org.eclipse.apogy.common.topology.ui.viewer.MouseButton;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TopologyViewerRegistryCustomImpl extends TopologyViewerRegistryImpl {

	private static final Logger Logger = LoggerFactory.getLogger(TopologyViewerRegistryImpl.class);

	private ISelectionChangedListener selectionChangedListener = null;
	private ITopologyViewerListener topologyViewerListener = null;

	@Override
	public void registerITopologyViewer(ITopologyViewer iTopologyViewer) {
		if (iTopologyViewer != null) {
			if (!getITopologyViewers().contains(iTopologyViewer)) {
				Logger.debug("Registering <" + iTopologyViewer + ">.");

				getITopologyViewers().add(iTopologyViewer);

				iTopologyViewer.addSelectionChangedListener(getSelectionChangedListener());
				iTopologyViewer.addITopologyViewerListener(getTopologyViewerListener());
			}
		}
	}

	@Override
	public void unRegisterITopologyViewer(ITopologyViewer iTopologyViewer) {
		if (iTopologyViewer != null) {
			Logger.debug("Un-Registering <" + iTopologyViewer + ">.");

			getITopologyViewers().remove(iTopologyViewer);

			iTopologyViewer.removeSelectionChangedListener(getSelectionChangedListener());
			iTopologyViewer.removeITopologyViewerListener(getTopologyViewerListener());
		}
	}

	private ITopologyViewerListener getTopologyViewerListener() {
		if (this.topologyViewerListener == null) {
			this.topologyViewerListener = new ITopologyViewerListener() {

				@Override
				public void mouseClicked(MouseButton button) {
					setLatestMouseButtonCliked(button);
				}

				@Override
				public void busyChanged(boolean oldBusy, boolean newBusy) {
				}

				@Override
				public void antiAliasingChanged(boolean oldAntiAliasing, boolean newAntiAliasing) {
				}
			};
		}
		return this.topologyViewerListener;
	}

	private ISelectionChangedListener getSelectionChangedListener() {
		if (this.selectionChangedListener == null) {
			this.selectionChangedListener = new ISelectionChangedListener() {

				@Override
				public void selectionChanged(SelectionChangedEvent event) {
					if (event != null) {
						if (event.getSelection() instanceof IStructuredSelection) {
							IStructuredSelection sel = (IStructuredSelection) event.getSelection();
							if (sel.getFirstElement() instanceof NodeSelection) {
								NodeSelection nodeSelection = (NodeSelection) sel.getFirstElement();

								String message = new String();
								message += "Selected Node     : " + nodeSelection.getSelectedNode() + "\n";
								message += "Relative Position : " + nodeSelection.getRelativeIntersectionPoint() + "\n";
								message += "Absolute Position : " + nodeSelection.getAbsoluteIntersectionPoint() + "\n";
								message += "Relative Normal   : " + nodeSelection.getRelativeIntersectionNormal()
										+ "\n";
								message += "Absolute Normal   : " + nodeSelection.getAbsoluteIntersectionNormal()
										+ "\n";

								Logger.debug("New Selection <\n" + message + ">.");

								setLatestNodeSelection(nodeSelection);
							}
						}
					}
				}
			};
		}
		return this.selectionChangedListener;
	}

} // TopologyViewerRegistryImpl