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.wizard;

import org.apache.log4j.Logger;

import org.eclipse.jface.util.IPropertyChangeListener;

import org.eclipse.jface.util.PropertyChangeEvent;

import org.eclipse.jface.wizard.WizardPage;

import org.eclipse.swt.SWT;

import org.eclipse.swt.graphics.Color;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Display;

import eu.etaxonomy.cdm.api.conversation.ConversationHolder;

import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;

import eu.etaxonomy.cdm.common.CdmUtils;

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

import eu.etaxonomy.cdm.model.taxon.Classification;

import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;

import eu.etaxonomy.taxeditor.forms.CdmFormFactory;

import eu.etaxonomy.taxeditor.forms.CdmFormFactory.SelectionType;

import eu.etaxonomy.taxeditor.forms.RootElement;

import eu.etaxonomy.taxeditor.forms.TextWithLabelElement;

import eu.etaxonomy.taxeditor.forms.selection.ReferenceSelectionElement;

import eu.etaxonomy.taxeditor.store.CdmStore;

/**

 * <p>ClassificationWizardPage class.</p>

 *

 * @author n.hoffmann

 * @created Sep 29, 2010

 * @version 1.0

 */

public class ClassificationWizardPage extends WizardPage implements IPropertyChangeListener, IConversationEnabled {

	private static final Logger logger = Logger

			.getLogger(ClassificationWizardPage.class);

	private Classification classification;

	private ConversationHolder conversation;

	private CdmFormFactory formFactory;

	private Composite control;

	private TextWithLabelElement text_classificationLabel;

	private ReferenceSelectionElement selection_reference;

	private TextWithLabelElement text_referenceDetail;

	/**

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

	 *

	 * @param conversation a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder} object.

	 * @param classification a {@link eu.etaxonomy.cdm.model.taxon.TaxonomicTree} object.

	 */

	protected ClassificationWizardPage(ConversationHolder conversation, Classification classification){

		super("Classification");

		this.setTitle("Classification");

		this.setDescription(classification == null ? "Create a new Classification." : "Edit Classification.");

		this.classification = classification;

		this.conversation = conversation;

		this.formFactory = new CdmFormFactory(Display.getCurrent());

		formFactory.addPropertyChangeListener(this);

		initialize();

	}

	/* (non-Javadoc)

	 * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)

	 */

	/** {@inheritDoc} */

	public void createControl(Composite parent) {

		control = formFactory.createComposite(parent);

		control.setLayout(CdmFormFactory.LAYOUT(2, false));

		RootElement rootElement = new RootElement(formFactory, control);

		text_classificationLabel = formFactory.createTextWithLabelElement(rootElement, "Label", classification.getName().getText(), SWT.NULL);

		selection_reference = (ReferenceSelectionElement) formFactory.createSelectionElement(SelectionType.REFERENCE, getConversationHolder(), rootElement, "Reference", classification.getReference(), SWT.NULL);

		text_referenceDetail = formFactory.createTextWithLabelElement(rootElement, "Reference Detail", classification.getMicroReference(), SWT.NULL);

		Color bgColor = getShell().getBackground();

		rootElement.setBackground(bgColor);

		control.setBackground(bgColor);

		setControl(control);

	}

	private void initialize() {

		if(classification == null){

			classification = Classification.NewInstance(null, null, CdmStore.getDefaultLanguage());

		}

	}

	/* (non-Javadoc)

	 * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)

	 */

	/** {@inheritDoc} */

	@Override

	public void propertyChange(PropertyChangeEvent event) {

		Object eventSource = event.getSource();

		if(eventSource == text_classificationLabel){

			classification.setName(LanguageString.NewInstance(text_classificationLabel.getText(), CdmStore.getDefaultLanguage()));

		}

		else if(eventSource == selection_reference){

			classification.setReference(selection_reference.getEntity());

		}

		else if(eventSource == text_referenceDetail){

			classification.setMicroReference(text_referenceDetail.getText());

		}

		checkComplete();

	}

	/**

	 * 

	 */

	private void checkComplete() {

		if(CdmUtils.isEmpty(text_classificationLabel.getText())){

			setMessage("A Classifications label may not be empty");

			setPageComplete(false);

		}else{

			setMessage(null);

			setPageComplete(true);

		}

	}

	/**

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

	 *

	 * @return a {@link eu.etaxonomy.cdm.model.taxon.TaxonomicTree} object.

	 */

	public Classification getClassification() {

		return classification;

	}

	/* (non-Javadoc)

	 * @see eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update(eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)

	 */

	/** {@inheritDoc} */

	@Override

	public void update(CdmDataChangeMap changeEvents) {}

	/* (non-Javadoc)

	 * @see eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder()

	 */

	/** {@inheritDoc} */

	@Override

	public ConversationHolder getConversationHolder() {

		return conversation;

	}

	/* (non-Javadoc)

	 * @see org.eclipse.jface.dialogs.DialogPage#dispose()

	 */

	/** {@inheritDoc} */

	@Override

	public void dispose() {

		formFactory.removePropertyChangeListener(this);

		super.dispose();

	}

}