EDIT

// $Id$

/**

 * Copyright (C) 2007 EDIT

 * European Distributed Institute of Taxonomy 

 * http://www.e-taxonomy.eu

 * 

 * The contents of this file are subject to the Mozilla Public License Version 1.1

 * See LICENSE.TXT at the top of this package for the full license terms.

 */

package eu.etaxonomy.taxeditor.ui.element;

import java.text.ParseException;

import org.eclipse.jface.util.PropertyChangeEvent;

import eu.etaxonomy.cdm.model.location.Point;

import eu.etaxonomy.cdm.model.location.ReferenceSystem;

import eu.etaxonomy.taxeditor.preference.Resources;

import eu.etaxonomy.taxeditor.ui.combo.TermComboElement;

/**

 * <p>

 * PointElement class.

 * </p>

 * 

 * @author n.hoffmann

 * @created Oct 15, 2010

 * @version 1.0

 */

public class PointElement extends AbstractCdmFormElement implements

		IEntityElement<Point>, ISelectable {

	private Point point;

	private final TextWithLabelElement text_latitude;

	private final TextWithLabelElement text_longitude;

	private final NumberWithLabelElement number_errorRadius;

	private final TermComboElement<ReferenceSystem> combo_referenceSystem;

	private final TextWithLabelElement text_latitudeParsed;

	private final TextWithLabelElement text_longitudeParsed;

	/**

	 * <p>

	 * Constructor for PointElement.

	 * </p>

	 * 

	 * @param formFactory

	 *            a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory}

	 *            object.

	 * @param formElement

	 *            a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement}

	 *            object.

	 * @param point

	 *            a {@link eu.etaxonomy.cdm.model.location.Point} object.

	 * @param style

	 *            a int.

	 */

	public PointElement(CdmFormFactory formFactory,

			ICdmFormElement formElement, Point point, final int style) {

		super(formFactory, formElement);

		formFactory.addPropertyChangeListener(this);

		text_latitude = formFactory.createTextWithLabelElement(formElement,

				"Latitude (hexagesimal)", null, style);

		text_latitudeParsed = formFactory.createTextWithLabelElement(

				formElement, "", null, style);

		text_latitudeParsed.setEnabled(false);

		text_longitude = formFactory.createTextWithLabelElement(formElement,

				"Longitude (hexagesimal)", null, style);

		text_longitudeParsed = formFactory.createTextWithLabelElement(

				formElement, "", null, style);

		text_longitudeParsed.setEnabled(false);

		number_errorRadius = formFactory.createIntegerTextWithLabelElement(

				formElement, "Error Radius (m)", null, style);

		combo_referenceSystem = formFactory

				.createTermComboElement(ReferenceSystem.class,

						formElement, "Reference System", null, style);

		setPoint(point);

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see

	 * eu.etaxonomy.taxeditor.forms.AbstractCdmFormElement#propertyChange(org

	 * .eclipse.jface.util.PropertyChangeEvent)

	 */

	/** {@inheritDoc} */

	@Override

	public void propertyChange(PropertyChangeEvent event) {

		if (event == null) {

			return;

		}

		boolean propagate = false;

		Object eventSource = event.getSource();

		if (eventSource == text_latitude) {

			try {

				getPoint().setLatitudeByParsing(text_latitude.getText());

				text_latitudeParsed.setText(point.getLatitudeSexagesimal()

						.toString(false));

				text_latitude

						.setBackground(getColor(Resources.COLOR_COMPOSITE_BACKGROUND));

				propagate = true;

			} catch (ParseException e) {

				text_latitude

						.setBackground(getColor(Resources.COLOR_PARSE_ERROR));

			}

		} else if (eventSource == text_longitude) {

			try {

				getPoint().setLongitudeByParsing(text_longitude.getText());

				text_longitudeParsed.setText(point.getLongitudeSexagesimal()

						.toString(false));

				text_longitude

						.setBackground(getColor(Resources.COLOR_COMPOSITE_BACKGROUND));

				propagate = true;

			} catch (ParseException e) {

				text_longitude

						.setBackground(getColor(Resources.COLOR_PARSE_ERROR));

			}

		} else if (eventSource == number_errorRadius) {

			getPoint().setErrorRadius(number_errorRadius.getInteger());

			propagate = true;

		} else if (eventSource == combo_referenceSystem) {

			getPoint().setReferenceSystem(combo_referenceSystem.getSelection());

			propagate = true;

		}

		if (propagate) {

			firePropertyChangeEvent(new CdmPropertyChangeEvent(this, event));

		}

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see eu.etaxonomy.taxeditor.forms.IEntityElement#getEntity()

	 */

	/** {@inheritDoc} */

	@Override

	public Point getEntity() {

		return getPoint();

	}

	/**

	 * <p>

	 * setEntity

	 * </p>

	 * 

	 * @param point

	 *            a {@link eu.etaxonomy.cdm.model.location.Point} object.

	 */

	public void setEntity(Point point) {

		setPoint(point);

	}

	/**

	 * <p>

	 * Setter for the field <code>point</code>.

	 * </p>

	 * 

	 * @param point

	 *            the point to set

	 */

	public void setPoint(Point point) {

		this.point = point;

		if (point != null) {

			String latitude = point.getLatitudeSexagesimal() == null ? ""

					: point.getLatitudeSexagesimal().toString(false);

			String longitude = point.getLongitudeSexagesimal() == null ? ""

					: point.getLongitudeSexagesimal().toString(false);

			text_latitude.setText(latitude);

			text_latitudeParsed.setText(latitude);

			text_longitude.setText(longitude);

			text_longitudeParsed.setText(longitude);

			number_errorRadius.setInteger(point.getErrorRadius());

			combo_referenceSystem.setSelection(point.getReferenceSystem());

		}

	}

	/**

	 * <p>

	 * Getter for the field <code>point</code>.

	 * </p>

	 * 

	 * @return the point

	 */

	public Point getPoint() {

		if (point == null) {

			point = Point.NewInstance();

		}

		return point;

	}

	public void setSelected(boolean selected) {

		setBackground(selected ? SELECTED : getPersistentBackground());

	}

}