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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.view.descriptive.handler;
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import org.eclipse.jface.action.ContributionItem;
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import org.eclipse.jface.action.IContributionItem;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.swt.widgets.Menu;
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import org.eclipse.swt.widgets.MenuItem;
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import org.eclipse.ui.ISelectionService;
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import org.eclipse.ui.actions.CompoundContributionItem;
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import org.eclipse.ui.handlers.IHandlerService;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.Feature;
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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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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.DescriptiveViewPart;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.CreateDescriptionElementOperation;
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import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* <p>DynamicFeatureMenu class.</p>
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*
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* @author n.hoffmann
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* @created 17.04.2009
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* @version 1.0
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*/
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public class DynamicFeatureMenu extends CompoundContributionItem {
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private ISelectionService selectionService = EditorUtil.getActivePart().getSite().getWorkbenchWindow().getSelectionService();
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private IHandlerService handlerService = (IHandlerService) EditorUtil.getService(IHandlerService.class);
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/* (non-Javadoc)
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* @see org.eclipse.ui.actions.CompoundContributionItem#getContributionItems()
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*/
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/** {@inheritDoc} */
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@Override
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protected IContributionItem[] getContributionItems() {
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return new IContributionItem[] {
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new ContributionItem() {
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public void fill(Menu menu, int index){
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ISelection selection = selectionService.getSelection(DescriptiveViewPart.ID);
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if(selection instanceof IStructuredSelection){
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IStructuredSelection structuredSelection = (IStructuredSelection) selection;
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Object selectedElement = structuredSelection.getFirstElement();
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if(selectedElement instanceof TaxonDescription){
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FeatureTree featureTree = getFeatureTree((TaxonDescription) selectedElement);
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for(FeatureNode childNode : featureTree.getRootChildren()){
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createMenuItem(menu, childNode.getFeature());
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}
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}
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else if(selectedElement instanceof FeatureNodeContainer){
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FeatureNode featureNode = ((FeatureNodeContainer) selectedElement).getFeatureNode();
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// add the feature to the menu
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createMenuItem(menu, featureNode.getFeature());
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// add possible children to the menu
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for(FeatureNode childNode : featureNode.getChildren()){
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createMenuItem(menu, childNode.getFeature());
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}
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}
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else if(selectedElement instanceof DescriptionElementBase){
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Feature feature = ((DescriptionElementBase) selectedElement).getFeature();
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createMenuItem(menu, feature);
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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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private void createMenuItem(Menu menu, final Feature feature) {
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MenuItem menuItem = new MenuItem(menu, -1);
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final Feature deproxiedFeature = (Feature) HibernateProxyHelper.deproxy(feature);
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menuItem.setText(deproxiedFeature.getLabel());
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menuItem.addSelectionListener(new SelectionListener(){
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public void widgetDefaultSelected(SelectionEvent e) {}
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public void widgetSelected(SelectionEvent ev) {
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Event event = new Event();
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event.data = deproxiedFeature;
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try {
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handlerService.executeCommand(CreateDescriptionElementOperation.ID, event);
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} catch (Exception e) {
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EditorUtil.error(getClass(), e);
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}
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}
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});
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}
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/**
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* Retrieves the feature tree associated with the given description
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*
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* TODO as of now this is always the same thing because feature trees may not be associated
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* to descriptions yet.
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*
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* @param description
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* @return
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*/
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private FeatureTree getFeatureTree(DescriptionBase description){
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FeatureTree featureTree = null;
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// TODO change this to the feature tree associated with this taxon description
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if (description.hasStructuredData()){
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featureTree = PreferencesUtil.getDefaultFeatureTreeForStructuredDescription();
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}else{
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featureTree = PreferencesUtil.getDefaultFeatureTreeForTextualDescription();
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}
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if(featureTree == null){
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featureTree = FeatureTree.NewInstance(CdmStore.getTermManager().getPreferredFeatures());
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}
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return featureTree;
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}
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}
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