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

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.editor.view.concept.graph;
   5
   6 import org.eclipse.jface.viewers.ISelection;
   7 import org.eclipse.jface.viewers.StructuredSelection;
   8 import org.eclipse.jface.viewers.Viewer;
   9 import org.eclipse.swt.SWT;
  10 import org.eclipse.swt.widgets.Composite;
  11 import org.eclipse.ui.IEditorInput;
  12 import org.eclipse.ui.IEditorPart;
  13 import org.eclipse.ui.IWorkbenchPart;
  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.EditorUtil;
  22 import eu.etaxonomy.taxeditor.editor.Messages;
  23 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  24 import eu.etaxonomy.taxeditor.view.AbstractCdmEditorViewPart;
  25
  26 /**
  27  * @author andreas
  28  *
  29  */
  30 public class ConceptGraphView extends AbstractCdmEditorViewPart {
  31
  32         public static final String ID = "eu.etaxonomy.taxeditor.editor.view.concept.graph"; //$NON-NLS-1$
  33
  34         private GraphViewer viewer;
  35         private LayoutAlgorithm layoutAlgoritm;
  36
  37         /* (non-Javadoc)
  38          * @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
  39          */
  40         @Override
  41         protected void selectionChanged_internal(IWorkbenchPart part, ISelection selection) {
  42
  43 //              if(part instanceof ConceptGraphView){
  44 //                      // ConceptGraphView is maximized
  45 //                      return;
  46 //              }
  47
  48                 if(EditorUtil.getActiveEditor() == null){
  49                         showEmptyPage();
  50                         return;
  51                 }
  52
  53                 if(part instanceof BulkEditor){
  54                         showEmptyPage();
  55                         return;
  56                 }
  57
  58
  59                 if(part instanceof MultiPageTaxonEditor){
  60                         if(! part.equals(this.part)){
  61                                 IEditorInput input = ((IEditorPart) part).getEditorInput();
  62                                 showViewer(part, new StructuredSelection(input));
  63                         }
  64                         showViewer();
  65                 }
  66
  67         }
  68
  69         /* (non-Javadoc)
  70          * @see eu.etaxonomy.taxeditor.operation.IPostOperationEnabled#onComplete()
  71          */
  72         @Override
  73         public boolean onComplete() {
  74                 // TODO IGNORED
  75                 return false;
  76         }
  77
  78         /* (non-Javadoc)
  79          * @see eu.etaxonomy.taxeditor.view.AbstractCdmViewPart#getViewer()
  80          */
  81         @Override
  82         public Viewer getViewer() {
  83                 return viewer;
  84         }
  85
  86         /* (non-Javadoc)
  87          * @see eu.etaxonomy.taxeditor.view.AbstractCdmViewPart#createViewer(org.eclipse.swt.widgets.Composite)
  88          */
  89         @Override
  90         public void createViewer(Composite parent) {
  91
  92                 viewer = new GraphViewer(parent, SWT.NONE);
  93                 getSite().setSelectionProvider(viewer);
  94
  95                 viewer.setContentProvider(new ConceptGraphContentProvider());
  96                 viewer.setLabelProvider(new ConceptGraphLabelProvider());
  97
  98                 viewer.setConnectionStyle(ZestStyles.CONNECTIONS_DIRECTED);
  99
 100                 viewer.setLayoutAlgorithm(getLayoutAlgoritm(), false);
 101
 102 //              createMenu();
 103 //
 104 //              createToolbar();
 105
 106
 107         }
 108
 109         private LayoutAlgorithm getLayoutAlgoritm() {
 110
 111                 if (layoutAlgoritm == null) {
 112                         // layoutAlgoritm = new CompositeLayoutAlgorithm(
 113                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING,
 114                         // new LayoutAlgorithm[] {
 115                         // new TreeLayoutAlgorithm(
 116                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING),
 117                         // new HorizontalShift(
 118                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING) });
 119
 120                         layoutAlgoritm = new TreeLayoutAlgorithm(
 121                                         LayoutStyles.NO_LAYOUT_NODE_RESIZING);
 122                         layoutAlgoritm.setEntityAspectRatio(0.5);
 123                 }
 124                 return layoutAlgoritm;
 125         }
 126
 127         @Override
 128         protected String getViewName() {
 129                 return Messages.ConceptGraphView_VIEWER_NAME;
 130         }
 131
 132
 133 }