eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/concept/graph/e4/ConceptGraphViewE4.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.editor.view.concept.graph.e4;
   5
   6 import javax.annotation.PostConstruct;
   7
   8 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
   9 import org.eclipse.e4.ui.services.EMenuService;
  10 import org.eclipse.jface.viewers.StructuredSelection;
  11 import org.eclipse.jface.viewers.Viewer;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.zest.core.viewers.GraphViewer;
  15 import org.eclipse.zest.core.widgets.ZestStyles;
  16 import org.eclipse.zest.layouts.LayoutAlgorithm;
  17 import org.eclipse.zest.layouts.LayoutStyles;
  18 import org.eclipse.zest.layouts.algorithms.TreeLayoutAlgorithm;
  19
  20 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  21 import eu.etaxonomy.taxeditor.editor.e4.TaxonEditorInputE4;
  22 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  23 import eu.etaxonomy.taxeditor.editor.name.e4.TaxonNameEditorE4;
  24 import eu.etaxonomy.taxeditor.editor.view.concept.graph.ConceptGraphContentProvider;
  25 import eu.etaxonomy.taxeditor.editor.view.concept.graph.ConceptGraphLabelProvider;
  26 import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
  27 import eu.etaxonomy.taxeditor.editor.view.media.e4.MediaViewPartE4;
  28 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  29 import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPartE4;
  30 import eu.etaxonomy.taxeditor.view.e4.details.DetailsPartE4;
  31 import eu.etaxonomy.taxeditor.view.e4.supplementaldata.SupplementalDataPartE4;
  32
  33 /**
  34  *
  35  * @author pplitzner
  36  * @since Sep 27, 2017
  37  *
  38  */
  39 public class ConceptGraphViewE4 extends AbstractCdmEditorPartE4 {
  40
  41         public static final String ID = "eu.etaxonomy.taxeditor.editor.view.concept.graph"; //$NON-NLS-1$
  42
  43         private LayoutAlgorithm layoutAlgoritm;
  44
  45     /**
  46      * {@inheritDoc}
  47      */
  48         @Override
  49         public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
  50             if(activePart==thisPart){
  51                 return;
  52             }
  53
  54             Object partObject = createPartObject(activePart);
  55
  56             if (partObject instanceof DetailsPartE4 || partObject instanceof SupplementalDataPartE4
  57                     || partObject instanceof FactualDataPartE4|| partObject instanceof MediaViewPartE4) {
  58                 // do not show empty page as these views are also used to edit the
  59                 // description selected in this view
  60                 return;
  61             }
  62                 if(AbstractUtility.getActiveEditor() == null){
  63                         showEmptyPage();
  64                         return;
  65                 }
  66
  67                 if(partObject instanceof BulkEditor){
  68                         showEmptyPage();
  69                         return;
  70                 }
  71
  72
  73                 if(partObject instanceof TaxonNameEditorE4){
  74                     if (viewer.getControl() != null && !viewer.getControl().isDisposed()) {
  75                 viewer.getControl().setEnabled(true);
  76             }
  77                     TaxonEditorInputE4 input = ((TaxonNameEditorE4) partObject).getEditorInput();
  78                     showViewer(new StructuredSelection(input), activePart, viewer);
  79                 }
  80
  81         }
  82
  83         @Override
  84         public boolean onComplete() {
  85                 return false;
  86         }
  87
  88         @Override
  89         public Viewer getViewer() {
  90                 return viewer;
  91         }
  92
  93         @PostConstruct
  94     public void create(Composite parent, EMenuService menuService, MPart thisPart) {
  95
  96         this.thisPart = thisPart;
  97
  98         GraphViewer viewer = new GraphViewer(parent, SWT.NONE);
  99
 100                 viewer.setContentProvider(new ConceptGraphContentProvider());
 101                 viewer.setLabelProvider(new ConceptGraphLabelProvider());
 102
 103                 viewer.setConnectionStyle(ZestStyles.CONNECTIONS_DIRECTED);
 104
 105                 viewer.setLayoutAlgorithm(getLayoutAlgoritm(), false);
 106
 107                 this.viewer = viewer;
 108
 109                 // Propagate selection from viewer
 110         selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
 111         viewer.addSelectionChangedListener(selectionChangedListener);
 112
 113 //              createMenu();
 114 //
 115 //              createToolbar();
 116
 117
 118         }
 119
 120         private LayoutAlgorithm getLayoutAlgoritm() {
 121
 122                 if (layoutAlgoritm == null) {
 123                         // layoutAlgoritm = new CompositeLayoutAlgorithm(
 124                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING,
 125                         // new LayoutAlgorithm[] {
 126                         // new TreeLayoutAlgorithm(
 127                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING),
 128                         // new HorizontalShift(
 129                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING) });
 130
 131                         layoutAlgoritm = new TreeLayoutAlgorithm(
 132                                         LayoutStyles.NO_LAYOUT_NODE_RESIZING);
 133                         layoutAlgoritm.setEntityAspectRatio(0.5);
 134                 }
 135                 return layoutAlgoritm;
 136         }
 137
 138         @Override
 139         protected String getViewName() {
 140                 return Messages.ConceptGraphView_VIEWER_NAME;
 141         }
 142
 143 }