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// $Id$
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/**
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 * Copyright (C) 2007 EDIT
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 * European Distributed Institute of Taxonomy
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 * http://www.e-taxonomy.eu
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 *
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 * The contents of this file are subject to the Mozilla Public License Version 1.1
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 * See LICENSE.TXT at the top of this package for the full license terms.
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 */
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package eu.etaxonomy.taxeditor.ui.section.classification;
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import org.apache.commons.lang.StringUtils;
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import org.eclipse.swt.widgets.Text;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.name.NonViralName;
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import eu.etaxonomy.cdm.model.name.TaxonNameBase;
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import eu.etaxonomy.cdm.model.reference.Reference;
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import eu.etaxonomy.cdm.model.taxon.Classification;
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import eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.taxeditor.parser.ParseHandler;
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import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
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import eu.etaxonomy.taxeditor.ui.element.CheckboxElement;
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import eu.etaxonomy.taxeditor.ui.element.ICdmFormElement;
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import eu.etaxonomy.taxeditor.ui.element.TextWithLabelElement;
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import eu.etaxonomy.taxeditor.ui.section.AbstractCdmDetailElement;
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import eu.etaxonomy.taxeditor.ui.selection.EntitySelectionElement;
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import eu.etaxonomy.taxeditor.ui.selection.TaxonNodeSelectionElement;
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/**
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 * <p>
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 * TaxonNodeDetailElement class.
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 * </p>
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 *
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 * @author n.hoffmann
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 * @created Sep 27, 2010
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 * @version 1.0
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 */
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public class TaxonNodeDetailElement extends AbstractCdmDetailElement<ITaxonTreeNode> {
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	private EntitySelectionElement<Classification> selection_classification;
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	private Classification classification;
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	private TaxonNodeSelectionElement selection_parentTaxonNode;
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	private ITaxonTreeNode parentTreeNode;
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	private EntitySelectionElement<Taxon> selection_reuseExistingTaxon;
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	private EntitySelectionElement<Reference> selection_SecRef;
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	private Taxon taxon;
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	private Reference secReference;
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	private TextWithLabelElement textNewTaxonName;
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	private CheckboxElement checkbox_openInEditor;
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	private boolean openInEditor;
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	private boolean complete;
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	private EntitySelectionElement<TaxonNameBase> selection_reuseExistingName;
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	/**
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	 * <p>
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	 * Constructor for TaxonNodeDetailElement.
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	 * </p>
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	 *
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	 * @param formFactory
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	 *            a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory}
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	 *            object.
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	 * @param formElement
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	 *            a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement}
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	 *            object.
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	 */
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	public TaxonNodeDetailElement(CdmFormFactory formFactory,
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			ICdmFormElement formElement) {
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		super(formFactory, formElement);
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	}
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	/** {@inheritDoc} */
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	@Override
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	protected void createControls(ICdmFormElement formElement,
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	        ITaxonTreeNode entity, int style) {
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		selection_classification = formFactory
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				.createSelectionElement(Classification.class,
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						getConversationHolder(), formElement, "Classification",
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						null, EntitySelectionElement.DELETABLE, style);
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		selection_parentTaxonNode = formFactory
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				.createTaxonNodeSelectionElement(getConversationHolder(), formElement, "Parent", null,
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						EntitySelectionElement.DELETABLE, style);
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		selection_SecRef = formFactory
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				.createSelectionElement(Reference.class,getConversationHolder(), formElement, "Secundum Reference", null,
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						EntitySelectionElement.DELETABLE, style);
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		selection_reuseExistingTaxon = formFactory
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				.createSelectionElement(Taxon.class,
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						getConversationHolder(), formElement,
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						"Reuse existing taxon", null,
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						EntitySelectionElement.DELETABLE, style);
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		selection_reuseExistingName = formFactory
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				.createSelectionElement(TaxonNameBase.class,
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						getConversationHolder(), formElement,
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						"Reuse existing name", null,
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						EntitySelectionElement.DELETABLE, style);
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		textNewTaxonName = formFactory.createTextWithLabelElement(formElement,
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				"New Taxon", "", style);
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		textNewTaxonName.setFocus();
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		preFillParentTaxonName();
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		checkbox_openInEditor = formFactory.createCheckbox(formElement,
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				"Open in Editor", true, style);
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		setOpenInEditor(true);
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		setParentTreeNode(entity);
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	}
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	private void preFillParentTaxonName() {
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        if(getEntity() instanceof TaxonNode){
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            TaxonNode node = (TaxonNode)getEntity();
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            if(node.getTaxon()!=null){
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                Taxon taxon = HibernateProxyHelper.deproxy(node.getTaxon(), Taxon.class);
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                if(taxon.getName()!=null && taxon.getName().isInstanceOf(NonViralName.class)){
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                    NonViralName<?> name = HibernateProxyHelper.deproxy(node.getTaxon().getName(), NonViralName.class);
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                    if( ! name.isSupraGeneric() && name.getRank() != null){
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                        String taxonName = "";
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                        if(name.isGenus() || name.isInfraGeneric()|| name.isSpeciesAggregate() ){
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                            taxonName = name.getGenusOrUninomial();
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                        }
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                        else if(name.isSpecies() || name.isInfraSpecific() ){
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                            taxonName = CdmUtils.concat(" ", name.getGenusOrUninomial(),name.getSpecificEpithet());
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                        }
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                        if (StringUtils.isNotBlank(taxonName)){
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                        	textNewTaxonName.setText(taxonName + " ");
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                        	if(textNewTaxonName.getMainControl() instanceof Text){
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                        		Text text = (Text)textNewTaxonName.getMainControl();
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                        		text.setSelection(textNewTaxonName.getText().length());
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                        	}
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                        }
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                    }
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                }
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            }
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        }
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    }
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	/** {@inheritDoc} */
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	@Override
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	public void handleEvent(Object eventSource) {
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		if (eventSource == selection_classification) {
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			setClassification(selection_classification.getEntity());
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		} else if (eventSource == selection_parentTaxonNode) {
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			setParentTreeNode(selection_parentTaxonNode.getEntity());
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		} else if (eventSource == selection_SecRef) {
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			setSecReference(selection_SecRef.getEntity());
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		} else if (eventSource == selection_reuseExistingTaxon) {
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				boolean enabled = selection_reuseExistingTaxon.getEntity() == null;
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				selection_reuseExistingName.setEnabled(enabled);
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				textNewTaxonName.setEnabled(enabled);
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				if (!enabled){
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					setTaxon(selection_reuseExistingTaxon.getEntity());
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				}
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				complete = !textNewTaxonName.getText().isEmpty();
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		} else if (eventSource == selection_reuseExistingName) {
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			boolean enabled = selection_reuseExistingName.getEntity() == null;
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			selection_reuseExistingTaxon.setEnabled(enabled);
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			textNewTaxonName.setEnabled(enabled);
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			setTaxon(selection_reuseExistingName.getEntity());
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		} else if (eventSource == textNewTaxonName) {
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			boolean enabled = CdmUtils.isEmpty(textNewTaxonName.getText());
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			selection_reuseExistingTaxon.setEnabled(enabled);
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			selection_reuseExistingName.setEnabled(enabled);
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			setTaxon(textNewTaxonName.getText());
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			complete = !textNewTaxonName.getText().isEmpty();
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		} else if (eventSource == checkbox_openInEditor) {
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			setOpenInEditor(checkbox_openInEditor.getSelection());
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		}
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	}
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	/**
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	 * <p>
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	 * Getter for the field <code>classification</code>.
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	 * </p>
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	 *
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	 * @return the classification
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	 */
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	public Classification getClassification() {
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		return classification;
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	}
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	public boolean isOpenInEditor() {
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		return openInEditor;
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	}
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	/**
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	 * <p>
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	 * Getter for the field <code>parentTreeNode</code>.
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	 * </p>
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	 *
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	 * @return a {@link eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode} object.
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	 */
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	public ITaxonTreeNode getParentTreeNode() {
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		return parentTreeNode;
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	}
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	/**
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	 * <p>
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	 * Getter for the field <code>taxon</code>.
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	 * </p>
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	 *
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	 * @return the taxon
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	 */
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	public Taxon getTaxon() {
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		return taxon;
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	}
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	private void setClassification(Classification classification) {
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		this.classification = classification;
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		setParentTreeNode(classification);
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	}
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	private void setParentTreeNode(ITaxonTreeNode parentTreeNode) {
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		this.parentTreeNode = parentTreeNode;
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		if (parentTreeNode instanceof Classification) {
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			classification = (Classification) parentTreeNode;
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			selection_classification.setEntity(classification);
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			selection_parentTaxonNode.setEntity(null);
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			selection_parentTaxonNode.setClassification(classification);
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		} else if (parentTreeNode instanceof TaxonNode) {
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			classification = (Classification) HibernateProxyHelper
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					.deproxy(((TaxonNode) parentTreeNode).getClassification());
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			selection_classification.setEntity(classification);
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			selection_parentTaxonNode.setEntity((TaxonNode) parentTreeNode);
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			selection_parentTaxonNode.setClassification(classification);
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		} else if(parentTreeNode == null){
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			this.parentTreeNode = selection_classification.getEntity();
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		}
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	}
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	private void setSecReference(Reference secRef){
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		this.secReference = secRef;
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		setTaxon(textNewTaxonName.getText());
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	}
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	private void setTaxon(Taxon taxon) {
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		this.taxon = taxon;
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		textNewTaxonName.setText(taxon.getName().getTitleCache());
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	}
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	private void setTaxon(String taxonNameString) {
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		TaxonNameBase taxonName = ParseHandler.parseReferencedName(
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				taxonNameString, null);
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		setTaxon(taxonName);
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	}
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	private void setTaxon(TaxonNameBase taxonName) {
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		Reference secundum = null;
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		if (getParentTreeNode() != null) {
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			if (this.secReference != null){
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				secundum = this.secReference;
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			} else if (getParentTreeNode() instanceof Classification) {
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				secundum = ((Classification) getParentTreeNode())
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						.getReference();
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			} else if (getParentTreeNode() instanceof TaxonNode) {
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				secundum = ((TaxonNode) getParentTreeNode()).getTaxon()
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						.getSec();
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			}
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		}
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		taxon = Taxon.NewInstance(taxonName, secundum);
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	}
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	private void setOpenInEditor(boolean openInEditor) {
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		this.openInEditor = openInEditor;
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	}
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	public TextWithLabelElement getTextNewTaxonName() {
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        return textNewTaxonName;
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    }
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	public boolean isComplete() {
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		return complete;
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	}
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}
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