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/**
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*
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*/
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package eu.etaxonomy.taxeditor.editor.view.concept.graph.e4;
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import javax.annotation.PostConstruct;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.services.EMenuService;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.zest.core.viewers.GraphViewer;
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import org.eclipse.zest.core.widgets.ZestStyles;
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import org.eclipse.zest.layouts.LayoutAlgorithm;
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import org.eclipse.zest.layouts.LayoutStyles;
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import org.eclipse.zest.layouts.algorithms.TreeLayoutAlgorithm;
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import eu.etaxonomy.taxeditor.bulkeditor.e4.BulkEditor;
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import eu.etaxonomy.taxeditor.editor.e4.TaxonEditorInput;
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import eu.etaxonomy.taxeditor.editor.l10n.Messages;
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import eu.etaxonomy.taxeditor.editor.name.e4.TaxonNameEditor;
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import eu.etaxonomy.taxeditor.editor.view.concept.graph.ConceptGraphContentProvider;
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import eu.etaxonomy.taxeditor.editor.view.concept.graph.ConceptGraphLabelProvider;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
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import eu.etaxonomy.taxeditor.editor.view.media.e4.MediaViewPartE4;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPartE4;
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import eu.etaxonomy.taxeditor.view.e4.details.DetailsPartE4;
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import eu.etaxonomy.taxeditor.view.e4.supplementaldata.SupplementalDataPartE4;
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/**
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*
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* @author pplitzner
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* @since Sep 27, 2017
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*
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*/
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public class ConceptGraphViewE4 extends AbstractCdmEditorPartE4 {
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public static final String ID = "eu.etaxonomy.taxeditor.editor.view.concept.graph"; //$NON-NLS-1$
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private LayoutAlgorithm layoutAlgoritm;
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/**
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* {@inheritDoc}
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*/
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@Override
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public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
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if(activePart==thisPart){
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return;
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}
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Object partObject = createPartObject(activePart);
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if (partObject instanceof DetailsPartE4 || partObject instanceof SupplementalDataPartE4
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|| partObject instanceof FactualDataPartE4|| partObject instanceof MediaViewPartE4) {
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// do not show empty page as these views are also used to edit the
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// description selected in this view
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return;
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}
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if(AbstractUtility.getActiveEditor() == null){
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showEmptyPage();
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return;
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}
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if(partObject instanceof BulkEditor){
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showEmptyPage();
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return;
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}
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if(partObject instanceof TaxonNameEditor){
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if (viewer.getControl() != null && !viewer.getControl().isDisposed()) {
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viewer.getControl().setEnabled(true);
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}
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TaxonEditorInput input = ((TaxonNameEditor) partObject).getEditorInput();
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showViewer(new StructuredSelection(input), activePart, viewer);
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}
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}
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@Override
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public boolean onComplete() {
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return false;
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}
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@Override
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public Viewer getViewer() {
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return viewer;
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}
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@PostConstruct
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public void create(Composite parent, EMenuService menuService, MPart thisPart) {
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this.thisPart = thisPart;
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GraphViewer viewer = new GraphViewer(parent, SWT.NONE);
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viewer.setContentProvider(new ConceptGraphContentProvider());
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viewer.setLabelProvider(new ConceptGraphLabelProvider());
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viewer.setConnectionStyle(ZestStyles.CONNECTIONS_DIRECTED);
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viewer.setLayoutAlgorithm(getLayoutAlgoritm(), false);
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this.viewer = viewer;
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// Propagate selection from viewer
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selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
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viewer.addSelectionChangedListener(selectionChangedListener);
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// createMenu();
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//
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// createToolbar();
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}
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private LayoutAlgorithm getLayoutAlgoritm() {
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if (layoutAlgoritm == null) {
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// layoutAlgoritm = new CompositeLayoutAlgorithm(
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// LayoutStyles.NO_LAYOUT_NODE_RESIZING,
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// new LayoutAlgorithm[] {
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// new TreeLayoutAlgorithm(
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// LayoutStyles.NO_LAYOUT_NODE_RESIZING),
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// new HorizontalShift(
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// LayoutStyles.NO_LAYOUT_NODE_RESIZING) });
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layoutAlgoritm = new TreeLayoutAlgorithm(
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LayoutStyles.NO_LAYOUT_NODE_RESIZING);
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layoutAlgoritm.setEntityAspectRatio(0.5);
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}
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return layoutAlgoritm;
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}
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@Override
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protected String getViewName() {
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return Messages.ConceptGraphView_VIEWER_NAME;
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}
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}
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