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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.featuretree;
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import java.util.List;
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import org.eclipse.core.commands.ExecutionException;
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import org.eclipse.jface.viewers.ISelectionChangedListener;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.ListViewer;
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import org.eclipse.jface.viewers.SelectionChangedEvent;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.jface.wizard.WizardPage;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.events.ModifyListener;
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import org.eclipse.swt.events.SelectionAdapter;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.layout.GridLayout;
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import org.eclipse.swt.widgets.Button;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.swt.widgets.Text;
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import eu.etaxonomy.cdm.api.service.DeleteResult;
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import eu.etaxonomy.cdm.api.service.IFeatureTreeService;
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import eu.etaxonomy.cdm.api.service.exception.DataChangeNoRollbackException;
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import eu.etaxonomy.cdm.model.description.FeatureTree;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.store.StoreUtil;
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/**
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* <p>SelectFeatureTreeWizardPage 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 SelectFeatureTreeWizardPage extends WizardPage implements ISelectionChangedListener, ModifyListener{
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private ListViewer viewer;
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private Text text_title;
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private Button button_add;
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private Button button_remove;
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/**
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* <p>Constructor for SelectFeatureTreeWizardPage.</p>
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*
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* @param pageName a {@link java.lang.String} object.
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*/
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protected SelectFeatureTreeWizardPage(String pageName) {
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super(pageName);
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setMessage("Select a Feature Tree or create a new one.");
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
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*/
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/** {@inheritDoc} */
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@Override
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public void createControl(Composite parent) {
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Composite composite = new Composite(parent, SWT.NULL);
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composite.setLayout(new GridLayout());
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Composite composite_treeContent = new Composite(composite, SWT.NULL);
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composite_treeContent.setLayoutData(new GridData(SWT.FILL, SWT.FILL,
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true, true));
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composite_treeContent.setLayout(new GridLayout(2, false));
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viewer = new ListViewer(composite_treeContent);
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viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
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button_remove = new Button(composite_treeContent, SWT.PUSH);
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button_remove.setText("Remove");
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button_remove.setLayoutData(new GridData(SWT.RIGHT, SWT.TOP, false, false));
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Composite composite_treeTitle = new Composite(composite, SWT.NULL);
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composite_treeTitle.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true,
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false));
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composite_treeTitle.setLayout(new GridLayout(3, false));
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Label label_title = new Label(composite_treeTitle, SWT.NULL);
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label_title.setText("New Feature Tree");
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text_title = new Text(composite_treeTitle, SWT.NULL);
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text_title.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
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button_add = new Button(composite_treeTitle, SWT.PUSH);
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button_add.setText("Add");
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viewer.setContentProvider(new FeatureTreeContentProvider());
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viewer.setLabelProvider(new FeatureTreeLabelProvider());
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viewer.addSelectionChangedListener(this);
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text_title.addModifyListener(this);
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button_add.addSelectionListener(new AddButtonSelectionListener());
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button_remove.addSelectionListener(new RemoveButtonSelectionListener());
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List<FeatureTree> input = CdmStore.getService(IFeatureTreeService.class).list(FeatureTree.class, null, null, null, null);
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viewer.setInput(input);
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modifyText(null);
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setControl(composite);
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}
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/** {@inheritDoc} */
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@Override
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public void selectionChanged(SelectionChangedEvent event) {
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IStructuredSelection selection = (IStructuredSelection) event.getSelection();
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if(selection.size() == 1){
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FeatureTree selectedFeatureTree = (FeatureTree) selection.getFirstElement();
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((FeatureTreeEditorWizard) getWizard()).setSelectedFeatureTree(selectedFeatureTree);
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}
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setPageComplete(true);
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button_remove.setEnabled(selection.size() >= 1);
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}
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/** {@inheritDoc} */
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@Override
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public boolean canFlipToNextPage() {
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return ((IStructuredSelection) viewer.getSelection()).size() == 1;
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}
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/** {@inheritDoc} */
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@Override
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public void modifyText(ModifyEvent e) {
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button_add.setEnabled(! text_title.getText().isEmpty());
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}
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private class AddButtonSelectionListener extends SelectionAdapter {
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public void widgetSelected(SelectionEvent e) {
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FeatureTree featureTree = FeatureTree.NewInstance();
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featureTree.setTitleCache(text_title.getText(), true);
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viewer.add(featureTree);
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CdmStore.getService(IFeatureTreeService.class).saveOrUpdate(featureTree);
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text_title.setText("");
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viewer.setSelection(new StructuredSelection(featureTree));
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}
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}
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private class RemoveButtonSelectionListener extends SelectionAdapter {
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public void widgetSelected(SelectionEvent e) {
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IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
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for(Object element : selection.toArray()){
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viewer.remove(element);
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DeleteResult result = CdmStore.getService(IFeatureTreeService.class).delete((FeatureTree) element);
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if (result.isError()){
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}
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viewer.setSelection(new StructuredSelection(new Object[0]));
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}
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}
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}
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}
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