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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.featuretree;
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import java.util.List;
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import org.eclipse.jface.viewers.ITreeContentProvider;
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import org.eclipse.jface.viewers.Viewer;
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import eu.etaxonomy.cdm.model.description.FeatureNode;
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import eu.etaxonomy.cdm.model.description.FeatureTree;
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/**
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* <p>FeatureTreeContentProvider class.</p>
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*
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* @author n.hoffmann
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* @created Aug 5, 2010
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* @version 1.0
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*/
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public class FeatureTreeContentProvider implements ITreeContentProvider {
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#dispose()
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*/
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/** {@inheritDoc} */
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@Override
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public void dispose() {
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
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*/
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/** {@inheritDoc} */
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@Override
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public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
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*/
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/** {@inheritDoc} */
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@Override
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public Object[] getElements(Object inputElement) {
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return this.getChildren(inputElement);
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}
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/** {@inheritDoc} */
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@Override
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public Object[] getChildren(Object parentElement) {
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if(parentElement instanceof FeatureTree){
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List<FeatureNode> children = ((FeatureTree) parentElement).getRootChildren();
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return children.toArray();
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}else if(parentElement instanceof FeatureNode){
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List<FeatureNode> children = ((FeatureNode) parentElement).getChildNodes();
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return children.toArray();
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}else if(parentElement instanceof List){
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return ((List) parentElement).toArray();
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}else{
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return new Object[]{};
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}
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}
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/** {@inheritDoc} */
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@Override
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public Object getParent(Object element) {
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if(element instanceof FeatureNode){
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return ((FeatureNode) element).getParent();
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}
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return null;
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}
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/** {@inheritDoc} */
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@Override
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public boolean hasChildren(Object element) {
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return getChildren(element).length != 0;
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}
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}
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