bundles/addons/org.eclipse.apogy.addons.vehicle.ui/src/org/eclipse/apogy/addons/vehicle/ui/wizards/LanderSphericalFootWizardPage.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 - initial API and implementation
 * 	 	 Regent L'Archeveque
 * 
 * SPDX-License-Identifier: EPL-1.0
 *******************************************************************************/
package org.eclipse.apogy.addons.vehicle.ui.wizards;

import java.text.DecimalFormat;

import org.eclipse.apogy.addons.vehicle.ApogyAddonsVehiclePackage;
import org.eclipse.apogy.addons.vehicle.LanderSphericalFoot;
import org.eclipse.apogy.common.emf.ui.composites.TypedElementSimpleUnitsComposite;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.impl.AdapterImpl;
import org.eclipse.emf.databinding.FeaturePath;
import org.eclipse.jface.wizard.WizardPage;
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;

public class LanderSphericalFootWizardPage extends WizardPage {
	private final static String WIZARD_PAGE_ID = "org.eclipse.apogy.addons.vehicle.ui.wizards.LanderSphericalFootWizardPage";
	public static String NO_VALUE_AVAILABLE_STRING = "N/A";
	private final int LABEL_WIDTH = 200;
	private final int VALUE_WIDTH = 100;
	private final int BUTTON_WIDTH = 50;

	private LanderSphericalFoot landerSphericalFoot;
	private Adapter adapter;

	private TypedElementSimpleUnitsComposite radiusComposite;

	public LanderSphericalFootWizardPage(LanderSphericalFoot landerSphericalFoot) {
		super(WIZARD_PAGE_ID);
		this.landerSphericalFoot = landerSphericalFoot;

		setTitle("Lander Spherical Foot");
		setDescription("Sets the Lander Spherical Foot parameters.");
	}

	@Override
	public void createControl(Composite parent) {
		Composite top = new Composite(parent, SWT.None);
		top.setLayout(new GridLayout(1, false));
		setControl(top);

		this.radiusComposite = new TypedElementSimpleUnitsComposite(top, SWT.NONE, true, true, true,
				NO_VALUE_AVAILABLE_STRING, this.LABEL_WIDTH, this.VALUE_WIDTH, this.BUTTON_WIDTH) {
			DecimalFormat format = new DecimalFormat("0.000");

			@Override
			protected DecimalFormat getDecimalFormat() {
				return this.format;
			}

			@Override
			protected String getLabelText() {
				return "Radius :";
			}
		};
		this.radiusComposite.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
		this.radiusComposite.setTypedElement(
				FeaturePath.fromList(ApogyAddonsVehiclePackage.Literals.LANDER_SPHERICAL_FOOT__RADIUS),
				getLanderSphericalFoot());

		if (this.landerSphericalFoot != null)
			this.landerSphericalFoot.eAdapters().add(getAdapter());
		top.addDisposeListener(new DisposeListener() {

			@Override
			public void widgetDisposed(DisposeEvent arg0) {
				if (LanderSphericalFootWizardPage.this.landerSphericalFoot != null)
					LanderSphericalFootWizardPage.this.landerSphericalFoot.eAdapters().remove(getAdapter());
			}
		});

		validate();
	}

	public LanderSphericalFoot getLanderSphericalFoot() {
		return this.landerSphericalFoot;
	}

	public void setLanderSphericalFoot(LanderSphericalFoot landerSphericalFoot) {
		this.landerSphericalFoot = landerSphericalFoot;

		if (this.radiusComposite != null && !this.radiusComposite.isDisposed()) {
			this.radiusComposite.setInstance(landerSphericalFoot);
		}
	}

	protected void validate() {
		setErrorMessage(null);

		if (this.landerSphericalFoot.getRadius() <= 0) {
			setErrorMessage("The specified radius must be greater or equal to zero !");
		}

		setPageComplete(getErrorMessage() == null);
	}

	protected Adapter getAdapter() {
		if (this.adapter == null) {
			this.adapter = new AdapterImpl() {
				@Override
				public void notifyChanged(Notification msg) {
					if (msg.getNotifier() instanceof LanderSphericalFoot) {
						validate();
					}
				}
			};
		}
		return this.adapter;
	}
}