EDIT

/**

* 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 org.eclipse.jface.util.PropertyChangeEvent;

import org.eclipse.swt.SWT;

import org.eclipse.swt.graphics.Color;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Label;

import org.eclipse.ui.forms.widgets.TableWrapLayout;

import org.joda.time.IllegalFieldValueException;

import org.joda.time.Partial;

import eu.etaxonomy.cdm.model.common.TimePeriod;

import eu.etaxonomy.taxeditor.model.AbstractUtility;

import eu.etaxonomy.taxeditor.preference.Resources;

/**

 * <p>PartialElement class.</p>

 *

 * @author n.hoffmann

 * @created Mar 31, 2010

 */

public class PartialElement extends AbstractCdmFormElement implements ISelectable {

	private Label label;

	private NumberWithLabelElement number_day;

	private NumberWithLabelElement number_month;

	private NumberWithLabelElement number_year;

	private Partial partial;

	/**

	 * <p>Constructor for PartialElement.</p>

	 *

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

	 * @param formElement a {@link eu.etaxonomy.taxeditor.ui.element.forms.ICdmFormElement} object.

	 * @param labelString a {@link java.lang.String} object.

	 * @param style a int.

	 */

	public PartialElement(CdmFormFactory formFactory,

			ICdmFormElement formElement, String labelString, int style) {

		super(formFactory, formElement);

		TableWrapLayout layout = LayoutConstants.LAYOUT(7, false);

		layout.horizontalSpacing = 5;

        formElement.getLayoutComposite().setLayout(layout);

		label = formFactory.createLabel(getLayoutComposite(), labelString);

		addControl(label);

		number_year = formFactory.createNumberTextWithLabelElement(this, "Year", null, style);

		number_year.setLimits(4, 0, 9999);

		number_month = formFactory.createNumberTextWithLabelElement(this, "Month", null, style);

		number_month.setLimits(2, 1, 12);

		number_day = formFactory.createNumberTextWithLabelElement(this, "Day", null, style);

		number_day.setLimits(2, 1, 31);

		formFactory.addPropertyChangeListener(this);

	}

	/**

	 * <p>Setter for the field <code>partial</code>.</p>

	 *

	 * @param partial a {@link org.joda.time.Partial} object.

	 */

	public void setPartial(Partial partial){

		this.partial = partial;

		if(partial != null){

			number_day.setNumber(TimePeriod.getPartialValue(partial, TimePeriod.DAY_TYPE));

			number_month.setNumber(TimePeriod.getPartialValue(partial, TimePeriod.MONTH_TYPE));

			number_year.setNumber(TimePeriod.getPartialValue(partial, TimePeriod.YEAR_TYPE));

		}

		else{

		    number_day.setNumber(null);

		    number_month.setNumber(null);

		    number_year.setNumber(null);

		}

	}

	/**

	 * <p>Getter for the field <code>partial</code>.</p>

	 *

	 * @return a {@link org.joda.time.Partial} object.

	 */

	public Partial getPartial(){

		return partial;

	}

	/** {@inheritDoc} */

	@Override

	public void propertyChange(PropertyChangeEvent event) {

		if(event == null){

			return;

		}

		Object eventSource = event.getSource();

		if(getElements().contains(eventSource)){

			if(event instanceof CdmPropertyChangeEvent){

				if(((CdmPropertyChangeEvent) event).hasException()){

					handleException((CdmPropertyChangeEvent) event);

					return;

				}

			}

			handleEvent(eventSource);

		}

	}

	/**

	 * @param event

	 */

	private void handleException(CdmPropertyChangeEvent event) {

		firePropertyChangeEvent(new CdmPropertyChangeEvent(this, event.getException()));

	}

	private void handleEvent(Object eventSource){

	    if (eventSource instanceof NumberWithLabelElement){

			try{

		    	if(eventSource == number_month && number_month.getException()==null){

			        partial = TimePeriod.setPartialField(partial, number_month.getInteger(), TimePeriod.MONTH_TYPE);

			    }else if(eventSource == number_day && number_day.getException()==null){

	                partial = TimePeriod.setPartialField(partial, number_day.getInteger(), TimePeriod.DAY_TYPE);

			    }else if(eventSource == number_year && number_year.getException()==null){

			        partial = TimePeriod.setPartialField(partial, number_year.getInteger(), TimePeriod.YEAR_TYPE);

			    }

			} catch (IndexOutOfBoundsException | IllegalFieldValueException e) {

				((NumberWithLabelElement)eventSource).text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));

			}

	    }

	    firePropertyChangeEvent(new CdmPropertyChangeEvent(this, null));

	}

	/** {@inheritDoc} */

	@Override

	public void setBackground(Color color) {

		label.setBackground(color);

	}

	@Override

	public void setSelected(boolean selected) {

		setBackground(selected ? SELECTED : getPersistentBackground());

	}

	public void setEnabled(boolean enabled){

	    this.number_day.setEnabled(enabled);

	    this.number_month.setEnabled(enabled);

	    this.number_year.setEnabled(enabled);

	    if (!enabled){

	        this.number_year.getMainControl().setBackground(AbstractUtility.getColor(Resources.COLOR_TEXT_DISABLED_BACKGROUND));

	        this.number_month.getMainControl().setBackground(AbstractUtility.getColor(Resources.COLOR_TEXT_DISABLED_BACKGROUND));

	        this.number_day.getMainControl().setBackground(AbstractUtility.getColor(Resources.COLOR_TEXT_DISABLED_BACKGROUND));

	    }else{

	        this.number_year.getMainControl().setBackground(getPersistentBackground());

            this.number_month.getMainControl().setBackground(getPersistentBackground());

            this.number_day.getMainControl().setBackground(getPersistentBackground());

	    }

	}

    /**

     *

     */

    public void setAllNull() {

        this.number_day.setNumber(null);

        this.number_month.setNumber(null);

        this.number_year.setNumber(null);

    }

}