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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 java.util.ArrayList;
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import java.util.List;
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import org.eclipse.jface.viewers.IStructuredContentProvider;
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import org.eclipse.jface.viewers.Viewer;
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import eu.etaxonomy.cdm.hibernate.HHH_9751_Util;
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import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
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/**
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* @author n.hoffmann
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* @created Apr 4, 2011
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* @version 1.0
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*/
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public class PolytomousKeyListContentProvider implements
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IStructuredContentProvider {
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/*
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* (non-Javadoc)
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*
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* @see org.eclipse.jface.viewers.IContentProvider#dispose()
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*/
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@Override
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public void dispose() {
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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.IContentProvider#inputChanged(org.eclipse.jface
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* .viewers.Viewer, java.lang.Object, java.lang.Object)
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*/
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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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/*
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* (non-Javadoc)
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*
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* @see
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* org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java
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* .lang.Object)
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*/
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@Override
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public Object[] getElements(Object inputElement) {
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if (inputElement instanceof PolytomousKeyEditorInput) {
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List<PolytomousKeyNode> result = new ArrayList<PolytomousKeyNode>();
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PolytomousKeyNode root = ((PolytomousKeyEditorInput) inputElement).getKey().getRoot();
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getChildrenBreadthFirst(result, root);
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return result.toArray();
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}
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return null;
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}
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private void getChildrenBreadthFirst(List<PolytomousKeyNode> result,
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PolytomousKeyNode node) {
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if (node == null){
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return;
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}
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if (!node.getChildren().isEmpty()) {
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result.addAll(node.getChildren());
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HHH_9751_Util.removeAllNull(result);
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for (PolytomousKeyNode internalNode : node.getChildren()) {
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getChildrenBreadthFirst(result, internalNode);
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}
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}
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}
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}
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