SourceDataView.java

/*
 * Copyright (c) 2012 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     HUMBOLDT EU Integrated Project #030962
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.ui.views.data;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.PlatformUI;

import eu.esdihumboldt.hale.common.instance.model.DataSet;
import eu.esdihumboldt.hale.common.instance.model.Instance;
import eu.esdihumboldt.hale.common.schema.SchemaSpaceID;
import eu.esdihumboldt.hale.ui.service.instance.sample.InstanceSampleService;
import eu.esdihumboldt.hale.ui.views.data.internal.DataViewPlugin;
import eu.esdihumboldt.hale.ui.views.data.internal.Messages;
import eu.esdihumboldt.hale.ui.views.data.internal.filter.InstanceServiceSelector;
import eu.esdihumboldt.hale.ui.views.data.internal.filter.WindowSelectionSelector;
import eu.esdihumboldt.hale.ui.views.properties.PropertiesViewPart;

/**
 * Table for viewing reference data
 * 
 * @author Simon Templer
 * @partner 01 / Fraunhofer Institute for Computer Graphics Research
 */
public class SourceDataView extends AbstractDataView {

	/**
	 * The view id
	 */
	public static final String ID = "eu.esdihumboldt.hale.ui.views.data.source"; //$NON-NLS-1$

	private Image mapImage;

	private Image instanceImage;

	private final InstanceServiceSelector instanceSelector;

	private final WindowSelectionSelector mapSelector;

	/**
	 * Default constructor
	 */
	public SourceDataView() {
		super(new InstanceServiceSelector(SchemaSpaceID.SOURCE), SchemaSpaceID.SOURCE,
				ID + ".viewer");

		instanceSelector = (InstanceServiceSelector) getDefaultInstanceSelector();
		// another selector based on the map selection
		mapSelector = new WindowSelectionSelector(DataSet.SOURCE);
	}

	/**
	 * @see PropertiesViewPart#getViewContext()
	 */
	@Override
	protected String getViewContext() {
		return "eu.esdihumboldt.hale.doc.user.source_data";
	}

	/**
	 * @see AbstractDataView#onSelectionChange(Iterable)
	 */
	@Override
	protected void onSelectionChange(Iterable<Instance> selection) {
		InstanceSampleService rss = PlatformUI.getWorkbench()
				.getService(InstanceSampleService.class);

		List<Instance> res = new ArrayList<Instance>();
		if (selection != null) {
			for (Instance instance : selection) {
				res.add(instance);
			}
		}

		rss.setReferenceInstances(res);
	}

	/**
	 * @see AbstractDataView#provideCustomControls(Composite)
	 */
	@Override
	protected void provideCustomControls(Composite parent) {
		GridLayout layout = new GridLayout(1, true);
		layout.marginWidth = 0;
		layout.marginHeight = 0;
		layout.horizontalSpacing = 0;
		layout.verticalSpacing = 0;
		parent.setLayout(layout);

		final Button instanceButton = new Button(parent, SWT.RADIO);
		if (instanceImage == null) {
			instanceImage = DataViewPlugin.getImageDescriptor("icons/random.gif").createImage(); //$NON-NLS-1$
		}
		instanceButton.setImage(instanceImage);
		instanceButton.setToolTipText(Messages.ReferenceTableView_0); // $NON-NLS-1$
		instanceButton.setSelection(true);
		instanceButton.addSelectionListener(new SelectionAdapter() {

			@Override
			public void widgetSelected(SelectionEvent e) {
				setInstanceSelector(instanceSelector);
			}

		});

		final Button mapButton = new Button(parent, SWT.RADIO);
		if (mapImage == null) {
			mapImage = DataViewPlugin.getImageDescriptor("icons/synced.gif").createImage(); //$NON-NLS-1$
		}
		mapButton.setImage(mapImage);
		mapButton.setToolTipText(Messages.ReferenceTableView_1); // $NON-NLS-1$
		mapButton.addSelectionListener(new SelectionAdapter() {

			@Override
			public void widgetSelected(SelectionEvent e) {
				setInstanceSelector(mapSelector);
			}

		});
	}

	/**
	 * @see AbstractDataView#dispose()
	 */
	@Override
	public void dispose() {
		if (mapImage != null) {
			mapImage.dispose();
		}
		if (instanceImage != null) {
			instanceImage.dispose();
		}

		super.dispose();
	}

}