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.LabelProvider;
   8 import org.eclipse.jface.viewers.StructuredSelection;
   9 import org.eclipse.jface.viewers.Viewer;
  10 import org.eclipse.swt.SWT;
  11 import org.eclipse.swt.widgets.Composite;
  12 import org.eclipse.ui.IEditorInput;
  13 import org.eclipse.ui.IEditorPart;
  14 import org.eclipse.ui.IWorkbenchPart;
  15 import org.eclipse.zest.core.viewers.GraphViewer;
  16 import org.eclipse.zest.core.widgets.ZestStyles;
  17 import org.eclipse.zest.layouts.LayoutAlgorithm;
  18 import org.eclipse.zest.layouts.LayoutStyles;
  19 import org.eclipse.zest.layouts.algorithms.TreeLayoutAlgorithm;
  20
  21 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  22 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  23 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  24 import eu.etaxonomy.taxeditor.editor.key.AbstractGraphKeyEditor;
  25 import eu.etaxonomy.taxeditor.view.AbstractCdmEditorViewPart;
  26
  27 /**
  28  * @author andreas
  29  *
  30  */
  31 public class ConceptGraphView extends AbstractCdmEditorViewPart {
  32
  33         public static final String ID = "eu.etaxonomy.taxeditor.editor.view.concept.graph";
  34
  35         private GraphViewer viewer;
  36         private LayoutAlgorithm layoutAlgoritm;
  37
  38         /* (non-Javadoc)
  39          * @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
  40          */
  41         @Override
  42         public void selectionChanged(IWorkbenchPart part, ISelection selection) {
  43
  44 //              if(part instanceof ConceptGraphView){
  45 //                      // ConceptGraphView is maximized
  46 //                      return;
  47 //              }
  48
  49                 if(EditorUtil.getActiveEditor() == null){
  50                         showEmptyPage();
  51                         return;
  52                 }
  53
  54                 if(part instanceof BulkEditor){
  55                         showEmptyPage();
  56                         return;
  57                 }
  58
  59
  60                 if(part instanceof MultiPageTaxonEditor){
  61                         if(! part.equals(this.part)){
  62                                 IEditorInput input = ((IEditorPart) part).getEditorInput();
  63                                 showViewer(part, new StructuredSelection(input));
  64                         }
  65                         showViewer();
  66                 }
  67
  68         }
  69
  70         /* (non-Javadoc)
  71          * @see eu.etaxonomy.taxeditor.operation.IPostOperationEnabled#onComplete()
  72          */
  73         @Override
  74         public boolean onComplete() {
  75                 // TODO IGNORED
  76                 return false;
  77         }
  78
  79         /* (non-Javadoc)
  80          * @see eu.etaxonomy.taxeditor.view.AbstractCdmViewPart#getViewer()
  81          */
  82         @Override
  83         public Viewer getViewer() {
  84                 return viewer;
  85         }
  86
  87         /* (non-Javadoc)
  88          * @see eu.etaxonomy.taxeditor.view.AbstractCdmViewPart#createViewer(org.eclipse.swt.widgets.Composite)
  89          */
  90         @Override
  91         public void createViewer(Composite parent) {
  92
  93                 viewer = new GraphViewer(parent, SWT.NONE);
  94                 getSite().setSelectionProvider(viewer);
  95
  96                 viewer.setContentProvider(new ConceptGraphContentProvider());
  97                 viewer.setLabelProvider(new ConceptGraphLabelProvider());
  98
  99                 viewer.setConnectionStyle(ZestStyles.CONNECTIONS_DIRECTED);
 100
 101                 viewer.setLayoutAlgorithm(getLayoutAlgoritm(), false);
 102
 103 //              createMenu();
 104 //
 105 //              createToolbar();
 106
 107
 108         }
 109
 110         private LayoutAlgorithm getLayoutAlgoritm() {
 111
 112                 if (layoutAlgoritm == null) {
 113                         // layoutAlgoritm = new CompositeLayoutAlgorithm(
 114                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING,
 115                         // new LayoutAlgorithm[] {
 116                         // new TreeLayoutAlgorithm(
 117                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING),
 118                         // new HorizontalShift(
 119                         // LayoutStyles.NO_LAYOUT_NODE_RESIZING) });
 120
 121                         layoutAlgoritm = new TreeLayoutAlgorithm(
 122                                         LayoutStyles.NO_LAYOUT_NODE_RESIZING);
 123                         layoutAlgoritm.setEntityAspectRatio(0.5);
 124                 }
 125                 return layoutAlgoritm;
 126         }
 127
 128 }