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