Examples of org.eclipse.jface.viewers.ViewerComparator

org.eclipse.jface.viewers.ViewerComparator
A viewer comparator is used by a {@link StructuredViewer} toreorder the elements provided by its content provider.
The default compare method compares elements using two steps. The first step uses the values returned from category. By default, all elements are in the same category. The second level is based on a case insensitive compare of the strings obtained from the content viewer's label provider via ILabelProvider.getText.

Subclasses may implement the isSorterProperty method; they may reimplement the category method to provide categorization; and they may override the compare methods to provide a totally different way of sorting elements.
@see IStructuredContentProvider @see StructuredViewer @since 3.2

        
        
        _treeViewer = new TreeViewer(tree);
        _treeViewer.setContentProvider(new WGASchemaDefinitionContentProvider());               
        _treeViewer.setLabelProvider(new WGASchemaDefinitionLabelProvider());        
        _treeViewer.setComparator(new ViewerComparator() {


            @Override
            public int compare(Viewer viewer, Object e1, Object e2) {
                if (e1 != null && e2 != null) {
                    if (e1 instanceof WGMetaFieldDefinition && e2 instanceof WGMetaFieldDefinition) {

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    ((GridData) fFolderViewerContainer.getLayoutData()).heightHint = fViewerHeight;
    ((GridData) fFolderViewerContainer.getLayoutData()).exclude = true;


    /* Sort by Name if set so */
    if (Owl.getPreferenceService().getGlobalScope().getBoolean(DefaultPreferences.BE_SORT_BY_NAME))
      fFolderViewer.setComparator(new ViewerComparator() {
        @Override
        public int compare(Viewer viewer, Object e1, Object e2) {
          IFolder f1 = (IFolder) e1;
          IFolder f2 = (IFolder) e2;

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    ((GridData) fFolderViewerContainer.getLayoutData()).heightHint = fViewerHeight;
    ((GridData) fFolderViewerContainer.getLayoutData()).exclude = true;


    /* Sort by Name if set so */
    if (Owl.getPreferenceService().getGlobalScope().getBoolean(DefaultPreferences.BE_SORT_BY_NAME)) {
      fFolderViewer.setComparator(new ViewerComparator() {
        @Override
        public int compare(Viewer viewer, Object e1, Object e2) {
          IFolder f1 = (IFolder) e1;
          IFolder f2 = (IFolder) e2;

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        return OwlUI.getImage(fResources, OwlUI.BOOKMARK_SET);
      }
    });


    /* Sort by ID to show latest Set at bottom */
    fViewer.setComparator(new ViewerComparator() {
      @Override
      public int compare(Viewer viewer, Object e1, Object e2) {
        IFolder folder1 = (IFolder) e1;
        IFolder folder2 = (IFolder) e2;

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        return OwlUI.getImage(fResources, OwlUI.BOOKMARK_SET);
      }
    });


    /* Sort by ID to show latest Set at bottom */
    fViewer.setComparator(new ViewerComparator() {
      @Override
      public int compare(Viewer viewer, Object e1, Object e2) {
        IFolder folder1 = (IFolder) e1;
        IFolder folder2 = (IFolder) e2;

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    ((GridData) fFolderViewerContainer.getLayoutData()).heightHint = fViewerHeight;
    ((GridData) fFolderViewerContainer.getLayoutData()).exclude = fExpandable;


    /* Sort by Name if set so */
    if (Owl.getPreferenceService().getGlobalScope().getBoolean(DefaultPreferences.BE_SORT_BY_NAME)) {
      fFolderViewer.setComparator(new ViewerComparator() {
        @Override
        public int compare(Viewer viewer, Object e1, Object e2) {
          IFolder f1 = (IFolder) e1;
          IFolder f2 = (IFolder) e2;

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          cell.setForeground(filter.isEnabled() ? display.getSystemColor(SWT.COLOR_BLACK) : display.getSystemColor(SWT.COLOR_DARK_GRAY));
      }
    });


    /* Sort */
    fViewer.setComparator(new ViewerComparator() {
      @Override
      public int compare(Viewer viewer, Object e1, Object e2) {
        ISearchFilter filter1 = (ISearchFilter) e1;
        ISearchFilter filter2 = (ISearchFilter) e2;

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    fTableViewer= new TableViewer(table);
    fTableViewer.setLabelProvider(new TemplateLabelProvider());
    fTableViewer.setContentProvider(new TemplateContentProvider());


    fTableViewer.setComparator(new ViewerComparator() {
      public int compare(Viewer viewer, Object object1, Object object2) {
        if ((object1 instanceof TemplatePersistenceData) && (object2 instanceof TemplatePersistenceData)) {
          Template left= ((TemplatePersistenceData) object1).getTemplate();
          Template right= ((TemplatePersistenceData) object2).getTemplate();
          int result= Collator.getInstance().compare(left.getName(), right.getName());

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                    }
                });
                return cp.toArray();
            }
        });
        viewer.setComparator(new ViewerComparator()
        {
            @Override
            public int category(Object element)
            {
                return index((IClasspathEntry) element);

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        }


        viewer.addFilter(filter);
        viewer.setContentProvider(content);
        viewer.setLabelProvider(getLabelProvider());
        viewer.setComparator(new ViewerComparator());
        viewer.setInput(scope);


        viewer.addSelectionChangedListener(new ISelectionChangedListener()
        {
            public void selectionChanged(SelectionChangedEvent event)

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