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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.editor.key.polytomous;
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import org.eclipse.jface.viewers.ITableLabelProvider;
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import org.eclipse.jface.viewers.StyledCellLabelProvider;
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import org.eclipse.swt.graphics.Image;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.model.description.KeyStatement;
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import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* @author n.hoffmann
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* @created Apr 18, 2011
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* @version 1.0
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*/
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public class PolytomousKeyListLabelProvider extends StyledCellLabelProvider
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implements ITableLabelProvider {
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/*
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* (non-Javadoc)
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*
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* @see
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* org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang
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* .Object, int)
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*/
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@Override
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public Image getColumnImage(Object element, int columnIndex) {
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return null;
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}
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/*
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* (non-Javadoc)
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*
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* @see
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* org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang
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* .Object, int)
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*/
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@Override
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public String getColumnText(Object element, int columnIndex) {
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if (element instanceof PolytomousKeyNode) {
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PolytomousKeyNode node = (PolytomousKeyNode) element;
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switch (columnIndex) {
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case 0:
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return getItemNumber(node);
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case 1:
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return getItemQuestion(node);
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case 2:
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return getItemStatement(node);
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case 3:
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return getItemLink(node);
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}
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}
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return null;
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}
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private String getItemNumber(PolytomousKeyNode node) {
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if (isParentRoot(node)) {
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return "root";
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} else {
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PolytomousKeyNode parent = getParent(node);
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String itemNumber = parent.getNodeNumber() != null ? parent
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.getNodeNumber().toString() : "NaN";
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int index = parent.getChildren().indexOf(node);
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for (int i = 0; i < index; i++) {
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itemNumber += "'";
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}
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return itemNumber;
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}
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}
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private String getItemQuestion(PolytomousKeyNode node) {
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if (isParentRoot(node)) {
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return "";
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} else {
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KeyStatement question = getParent(node).getQuestion();
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return question != null ? question.getLabelText(CdmStore
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.getDefaultLanguage()) : "";
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}
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}
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private String getItemStatement(PolytomousKeyNode node) {
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KeyStatement statement = node.getStatement();
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return statement != null ? CdmUtils.Nz(statement.getLabelText(CdmStore
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.getDefaultLanguage())) : "No statement";
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}
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private String getItemLink(PolytomousKeyNode node) {
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String taxonString = node.getTaxon() != null ? node.getTaxon()
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.getName().getTitleCache() : "Taxon empty";
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return node.getChildren().isEmpty() ? taxonString : node
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.getNodeNumber().toString();
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}
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private PolytomousKeyNode getParent(PolytomousKeyNode node) {
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return node.getParent();
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}
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private boolean isParentRoot(PolytomousKeyNode node) {
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return getParent(node) == null;
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}
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}
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