SymbolizerDialog.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.style.dialog;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.TrayDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.geotools.styling.LineSymbolizer;
import org.geotools.styling.PointSymbolizer;
import org.geotools.styling.PolygonSymbolizer;
import org.geotools.styling.StyleBuilder;
import org.geotools.styling.Symbolizer;

import eu.esdihumboldt.hale.ui.style.internal.Messages;

/**
 * Symbolizer dialog
 * 
 * @author Simon Templer
 * @partner 01 / Fraunhofer Institute for Computer Graphics Research
 */
public class SymbolizerDialog extends TrayDialog {

	private static final StyleBuilder styleBuilder = new StyleBuilder();

	private Combo combo;

	private Symbolizer symbolizer = null;

	/**
	 * @see TrayDialog#TrayDialog(Shell)
	 */
	public SymbolizerDialog(Shell shell) {
		super(shell);
	}

	/**
	 * @see Window#configureShell(Shell)
	 */
	@Override
	protected void configureShell(Shell newShell) {
		super.configureShell(newShell);

		newShell.setText(Messages.SymbolizerDialog_ShellSymbolizerText);
	}

	/**
	 * @see Dialog#createDialogArea(Composite)
	 */
	@Override
	protected Control createDialogArea(Composite parent) {
		Composite page = (Composite) super.createDialogArea(parent);
		page.setLayout(new RowLayout(SWT.VERTICAL));

		Label label = new Label(page, SWT.NONE);
		label.setText(Messages.SymbolizerDialog_LabelText);

		combo = new Combo(page, SWT.READ_ONLY);
		combo.add(LineSymbolizer.class.getSimpleName());
		combo.add(PolygonSymbolizer.class.getSimpleName());
		combo.add(PointSymbolizer.class.getSimpleName());

		combo.select(0);

		return page;
	}

	/**
	 * @see Dialog#okPressed()
	 */
	@Override
	protected void okPressed() {
		switch (combo.getSelectionIndex()) {
		case 1:
			symbolizer = styleBuilder.createPolygonSymbolizer();
			break;
		case 2:
			symbolizer = styleBuilder.createPointSymbolizer();
			break;
		case 0:
			// fall through
		default:
			symbolizer = styleBuilder.createLineSymbolizer();
		}

		super.okPressed();
	}

	/**
	 * Get the selected symbolizer
	 * 
	 * @return the symbolizer or null if none was selected
	 */
	public Symbolizer getSymbolizer() {
		return symbolizer;
	}

}