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/**
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* Copyright (C) 2014 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.preference.wizard;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.UUID;
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import org.apache.commons.lang.StringUtils;
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import org.eclipse.jface.preference.IPreferenceStore;
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import org.eclipse.jface.viewers.CheckStateChangedEvent;
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import org.eclipse.jface.viewers.CheckboxTreeViewer;
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import org.eclipse.jface.viewers.ICheckStateListener;
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import org.eclipse.jface.viewers.ITreeViewerListener;
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import org.eclipse.jface.viewers.StyledString.Styler;
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import org.eclipse.jface.viewers.TreeExpansionEvent;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.graphics.TextStyle;
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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.Composite;
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import org.eclipse.swt.widgets.Display;
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import eu.etaxonomy.cdm.api.service.IVocabularyService;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.common.DefinedTermBase;
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import eu.etaxonomy.cdm.model.common.TermType;
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import eu.etaxonomy.cdm.model.common.TermVocabulary;
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import eu.etaxonomy.cdm.model.metadata.PreferencePredicate;
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import eu.etaxonomy.taxeditor.l10n.Messages;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* @author a.oppermann
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* @date 21.07.2014
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*
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*/
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public class AvailableDistributionPage extends AbstractTermSelectionWizardPage implements ICdmEntitySessionEnabled {
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/**
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* @param pageName
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*/
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protected AvailableDistributionPage(String pageName) {
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super(pageName, TermType.NamedArea);
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this.localPref = true;
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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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IPreferenceStore preferenceStore = PreferencesUtil.getPreferenceStore();
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String checkedValues = preferenceStore.getString(PreferencesUtil.DISTRIBUTION_AREA_OCCURENCE_STATUS);
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String grayedValues = preferenceStore.getString(PreferencesUtil.DISTRIBUTION_AREA_OCCURENCE_STATUS_GRAYED);
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setTitle(Messages.AvailableDistributionPage_PAGE_TITLE);
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setDescription(Messages.AvailableDistributionPage_PAGE_DESCRIPTION);
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Composite composite = new Composite(parent, SWT.NULL);
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composite.setLayout(new GridLayout());
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setViewer(new CheckboxTreeViewer(composite, SWT.NULL));
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((CheckboxTreeViewer)getViewer()).getTree().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
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getViewer().setContentProvider(new DistributionContentProvider());
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Styler styler = new Styler() {
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@Override
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public void applyStyles(TextStyle textStyle) {
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textStyle.foreground = Display.getCurrent().getSystemColor(SWT.COLOR_BLACK);
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}
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};
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getViewer().setLabelProvider(new AreaLabelProvider(styler));
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getViewer().setComparator(new AreaViewerComparator());
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((CheckboxTreeViewer)getViewer()).addCheckStateListener(new ICheckStateListener() {
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private boolean ignoreCheckEvent = false;
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@Override
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public void checkStateChanged(CheckStateChangedEvent event) {
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if (ignoreCheckEvent ) {
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return;
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}
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ignoreCheckEvent = true;
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try {
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checkChildren(event.getElement(), event.getChecked());
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grayParents(event.getElement(), event.getChecked());
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// ((CheckboxTreeViewer)getViewer()).refresh();
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}
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finally {
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ignoreCheckEvent = false;
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}
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checkNoneChecked();
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}
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});
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((CheckboxTreeViewer)getViewer()).addTreeListener(new ITreeViewerListener() {
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@Override
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public void treeCollapsed(TreeExpansionEvent event) {
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}
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@Override
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public void treeExpanded(TreeExpansionEvent event) {
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final Object element = event.getElement();
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final Object[] children = ((DistributionContentProvider)getViewer().getContentProvider()).getChildren(element);
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for (Object child : children) {
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if (child instanceof NamedAreaWrapper){
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if (getListCheckedTerms().contains(((NamedAreaWrapper) child).getNamedArea()) ){
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((CheckboxTreeViewer)getViewer()).setChecked(child, true);
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}
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if (getListGrayedTerms().contains(((NamedAreaWrapper) child).getNamedArea())&& !((NamedAreaWrapper) child).isBaseElement){
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((CheckboxTreeViewer)getViewer()).setGrayChecked(child, true);
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}
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}
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}
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}
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});
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// TODO: write listener or toggle button to select all named areas
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rememberCheckedValues(checkedValues, grayedValues);
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// ((CheckboxTreeViewer)getViewer()).expandToLevel(2);
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setControl(composite);
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}
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private boolean checkNoneChecked() {
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if (((CheckboxTreeViewer)getViewer()).getCheckedElements().length == 0) {
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setMessage(Messages.AvailableDistributionPage_CHECK_MESSAGE, WARNING);
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return true;
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} else {
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setMessage(null);
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return false;
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}
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}
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/**
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*
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* @param path
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* @param checked
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*/
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private void checkChildren(final Object element, final boolean checked) {
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if (element == null) {
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return;
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}
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if (((CheckboxTreeViewer)getViewer()).isExpandable(element)){
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((CheckboxTreeViewer)getViewer()).expandToLevel(element, CheckboxTreeViewer.ALL_LEVELS);
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((CheckboxTreeViewer)getViewer()).setSubtreeChecked(element, checked);
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((CheckboxTreeViewer)getViewer()).setChecked(element, checked);
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if (((CheckboxTreeViewer)getViewer()).getGrayed(element)){
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((CheckboxTreeViewer)getViewer()).setGrayChecked(element, !checked);
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}
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// if (element instanceof NamedAreaWrapper){
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// NamedAreaWrapper baseElement = new NamedAreaWrapper(((NamedAreaWrapper)element).getNamedArea(), true, ((NamedAreaWrapper)element).parent);
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// ((CheckboxTreeViewer)getViewer()).setChecked(baseElement, !checked);
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// ((CheckboxTreeViewer)getViewer()).setGrayed(element, checked);
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// }
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}else{
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((CheckboxTreeViewer)getViewer()).setChecked(element, checked);
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((CheckboxTreeViewer)getViewer()).setGrayed(element, false);
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}
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}
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/**
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*
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* @param path
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* @param checked
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*/
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private void grayParents(final Object element, boolean checked) {
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DistributionContentProvider tcp = new DistributionContentProvider();
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if (element == null) {
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return;
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}
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// final Object element = path.getLastSegment();
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Object parent = tcp.getParent(element);
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if (parent != null) {
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boolean allUnchecked = true;
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boolean allChecked = true;
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//if element is checked then the parent should be grayed if it is unchecked it have to be computed whether the parent should be checked
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// if (checked){
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// if (!((CheckboxTreeViewer)getViewer()).getChecked(parent)){
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// ((CheckboxTreeViewer)getViewer()).setGrayChecked(parent, true);
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// }
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//
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// }else{
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for (final Object fieldElement : tcp.getChildren(parent)) {
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allChecked = allChecked && ((CheckboxTreeViewer)getViewer()).getChecked(fieldElement);
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allUnchecked = allUnchecked && !((CheckboxTreeViewer)getViewer()).getChecked(fieldElement);
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allUnchecked = allUnchecked && !((CheckboxTreeViewer)getViewer()).getGrayed(fieldElement);
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}
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if (allUnchecked) {
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// if (!((CheckboxTreeViewer)getViewer()).getChecked(parent)){
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((CheckboxTreeViewer)getViewer()).setChecked(parent, false);
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((CheckboxTreeViewer)getViewer()).setGrayed(parent, false);
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// }else{
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// checked = true;
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// }
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} else if (allChecked){
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((CheckboxTreeViewer)getViewer()).setChecked(parent, true);
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((CheckboxTreeViewer)getViewer()).setGrayed(parent, false);
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}else {
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// if (!((CheckboxTreeViewer)getViewer()).getChecked(parent)){
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((CheckboxTreeViewer)getViewer()).setGrayChecked(parent, true);
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((CheckboxTreeViewer)getViewer()).setChecked(parent, true);
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// }
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checked = true;
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}
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// }
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grayParents(parent, checked);
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}
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}
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@Override
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public void dispose() {
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CdmStore.getCurrentSessionManager().dispose(this);
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super.dispose();
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getCdmEntitySession()
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*/
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@Override
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public ICdmEntitySession getCdmEntitySession() {
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return CdmStore.getCurrentSessionManager().getNullSession();
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getRootEntities()
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*/
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@Override
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public <T extends CdmBase> Collection<T> getRootEntities() {
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return null;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getPropertyPathsMap()
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*/
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@Override
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public Map<Object, List<String>> getPropertyPathsMap() {
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Map<Object, List<String>> propertyPathsMap = new HashMap<Object, List<String>>();
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List<String> termsPropertyPaths = Arrays.asList(new String[] {
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"includes" //$NON-NLS-1$
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});
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propertyPathsMap.put("includes", termsPropertyPaths); //$NON-NLS-1$
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propertyPathsMap.put("terms", termsPropertyPaths); //$NON-NLS-1$
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return propertyPathsMap;
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}
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@Override
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protected List<TermVocabulary<DefinedTermBase>> getVocabulariesFromPreference(){
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List<TermVocabulary<DefinedTermBase>> vocs = new ArrayList();
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if (PreferencesUtil.getPreferenceFromDB(PreferencePredicate.AvailableDistributionAreaVocabularies) == null && PreferencesUtil.getPreferenceStore().getString(PreferencesUtil.DISTRIBUTION_VOCABULARIES) == null){
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vocs = CdmStore.getService(IVocabularyService.class).findByTermType(
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type, null);
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}else{
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String vocString = PreferencesUtil.getPreferenceStore().getString(PreferencesUtil.DISTRIBUTION_VOCABULARIES);
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String[] arrayVocs = vocString.split(";"); //$NON-NLS-1$
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Set<UUID> uuidVocs = new HashSet();
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for (String voc: arrayVocs){
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if (!StringUtils.isBlank(voc)){
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uuidVocs.add(UUID.fromString(voc));
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}
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}
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List<TermVocabulary> tempVocs = CdmStore.getService(IVocabularyService.class).find(uuidVocs);
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for (TermVocabulary voc: tempVocs){
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vocs.add(voc);
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}
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}
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return vocs;
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}
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}
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