Example usage for org.eclipse.jface.viewers TreeViewer setAutoExpandLevel

List of usage examples for org.eclipse.jface.viewers TreeViewer setAutoExpandLevel

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Introduction

In this page you can find the example usage for org.eclipse.jface.viewers TreeViewer setAutoExpandLevel.

Prototype

public void setAutoExpandLevel(int level)

Source Link

Document

Sets the auto-expand level to be used when the input of the viewer is set using #setInput(Object) .

Usage

From source file:org.cs3.pdt.editor.internal.views.lightweightOutline.NonNaturePrologOutline.java

License:Open Source License

public void setInput(Object information) {
    if (model == null) {
        return;//from w w  w.j a  va2s . c  o  m
    }

    String fileName = editor.getPrologFileName();

    Map<String, OutlineModuleElement> modules;
    TreeViewer treeViewer = getTreeViewer();
    if (!fileName.isEmpty()) {
        Object[] expandedElements = null;
        try {
            modules = PDTOutlineQuery.getProgramElementsForFile(fileName);
            model.update(modules, fileName);

            expandedElements = treeViewer.getExpandedElements();
            treeViewer.setInput(model);
            treeViewer.setAutoExpandLevel(EXPANDING_LEVEL);

        } catch (Exception e) {
            Debug.report(e);
        }
        if (treeViewer != null) {
            treeViewer.refresh();
            if (expandedElements != null && expandedElements.length > 0) {
                treeViewer.setExpandedElements(expandedElements);
            }
        }
    }
}

From source file:org.cs3.pdt.editor.internal.views.lightweightOutline.PrologOutlineInformationControl.java

License:Open Source License

/**
 * {@inheritDoc}// w  ww . j  a v a  2  s  .  c o m
 */
@Override
protected TreeViewer createTreeViewer(Composite parent, int style) {
    Tree tree = new Tree(parent, SWT.SINGLE | (style & ~SWT.MULTI));
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.heightHint = tree.getItemHeight() * 12;
    tree.setLayoutData(gd);

    final TreeViewer treeViewer = new OutlineTreeViewer(tree);
    treeViewer.addDoubleClickListener(new IDoubleClickListener() {

        @Override
        public void doubleClick(DoubleClickEvent event) {
            gotoSelectedElement();
        }
    });
    // Hard-coded filters
    treeViewer.addFilter(new NamePatternFilter(this, this.getMatcher()));

    fInnerLabelProvider = new OutlineLabelProvider();
    treeViewer.setLabelProvider(fInnerLabelProvider);

    fLexicalSortingAction = new LexicalSortingAction(/*this,*/ treeViewer);

    fOutlineContentProvider = new OutlineContentProvider();
    treeViewer.setContentProvider(fOutlineContentProvider);
    fOutlineSorter = new ViewerComparator();
    treeViewer.setComparator(fOutlineSorter);
    treeViewer.setAutoExpandLevel(2);

    return treeViewer;
}

From source file:org.cs3.pdt.internal.views.lightweightOutline.NonNaturePrologOutline.java

License:Open Source License

@Override
public void createControl(Composite parent) {
    super.createControl(parent);

    TreeViewer viewer = getTreeViewer();

    contentProvider = new OutlineContentProvider();
    viewer.setContentProvider(contentProvider);

    labelProvider = new OutlineLabelProvider();

    //      labelProvider = new DecoratingLabelProvider(new OutlineLabelProvider(), 
    //            PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator());
    viewer.setLabelProvider(labelProvider);

    //      viewer.addSelectionChangedListener(this);

    viewer.addDoubleClickListener(this);

    viewer.getControl().addListener(SWT.Show, new Listener() {
        @Override//from ww w  . jav a  2s . c o  m
        public void handleEvent(Event event) {
            getSite().getShell().getDisplay().asyncExec(new Runnable() {
                @Override
                public void run() {
                    setInput(null);
                }
            });
        }
    });

    model = new PrologSourceFileModel(new HashMap<String, OutlineModuleElement>());

    viewer.setInput(model);

    viewer.setAutoExpandLevel(EXPANDING_LEVEL);

    IActionBars actionBars = getSite().getActionBars();
    IToolBarManager toolBarManager = actionBars.getToolBarManager();
    //      Action action = new LexicalSortingAction(viewer);
    //      toolBarManager.add(action);
    Action action = new ToggleSortAction(getTreeViewer());
    toolBarManager.add(action);
    ToggleFilterAction action2 = new ToggleFilterAction("Hide private predicates",
            ImageRepository.getImageDescriptor(ImageRepository.PE_PROTECTED),
            ImageRepository.getImageDescriptor(ImageRepository.FILTER_PRIVATE), viewer,
            new HidePrivatePredicatesFilter(), PDTPlugin.getDefault().getPreferenceStore(),
            PDT.PREF_OUTLINE_FILTER_PRIVATE);
    toolBarManager.add(action2);
    ToggleFilterAction action3 = new ToggleFilterAction("Hide system predicates",
            ImageRepository.getImageDescriptor(ImageRepository.NO_FILTER_SYSTEM),
            ImageRepository.getImageDescriptor(ImageRepository.FILTER_SYSTEM), viewer,
            new HideSystemPredicatesFilter(), PDTPlugin.getDefault().getPreferenceStore(),
            PDT.PREF_OUTLINE_FILTER_SYSTEM);
    toolBarManager.add(action3);
    //      action = new FilterActionMenu(this);
    //      toolBarManager.add(action);

    hookContextMenu(parent);
    setInput(editor.getEditorInput());

    PrologRuntimeUIPlugin.getDefault().getPrologInterfaceService().registerConsultListener(this);
    PrologRuntimeUIPlugin.getDefault().getPrologInterfaceService().registerActivePrologInterfaceListener(this);
    PDTCommonPlugin.getDefault().registerPifStartListener(this);
}

From source file:org.ebayopensource.vjet.eclipse.internal.ui.typehierarchy.VjoHierarchyInformationControl.java

License:Open Source License

protected TreeViewer createTreeViewer(Composite parent, int style) {
    Tree tree = new Tree(parent, SWT.SINGLE | (style & ~SWT.MULTI));
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.heightHint = tree.getItemHeight() * 12;
    tree.setLayoutData(gd);//from   w  w  w. j  av a  2s  . c  o m

    TreeViewer treeViewer = new TreeViewer(tree);
    treeViewer.addFilter(new ViewerFilter() {
        public boolean select(Viewer viewer, Object parentElement, Object element) {
            return element instanceof IType;
        }
    });

    fLifeCycle = new TypeHierarchyLifeCycle(false);

    treeViewer.setSorter(new HierarchyViewerSorter(fLifeCycle));
    treeViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);

    fLabelProvider = new VjoHierarchyLabelProvider(fLifeCycle, getPreferenceStore());
    fLabelProvider.setFilter(new ViewerFilter() {
        public boolean select(Viewer viewer, Object parentElement, Object element) {
            return hasFocusMethod((IType) element);
        }
    });

    fLabelProvider.setTextFlags(ScriptElementLabels.ALL_DEFAULT | ScriptElementLabels.T_POST_QUALIFIED);
    fLabelProvider.addLabelDecorator(new ProblemsLabelDecorator(null));
    treeViewer.setLabelProvider(fLabelProvider);

    treeViewer.getTree().addKeyListener(getKeyAdapter());

    return treeViewer;
}

From source file:org.eclipse.ajdt.internal.ui.editor.outline.AJOutlineInformationControl.java

License:Open Source License

/**
 * {@inheritDoc}//from  w  w w.  j av  a 2 s . c o  m
 */
protected TreeViewer createTreeViewer(Composite parent, int style) {
    Tree tree = new Tree(parent, SWT.SINGLE | (style & ~SWT.MULTI));
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.heightHint = tree.getItemHeight() * 12;
    tree.setLayoutData(gd);

    final TreeViewer treeViewer = new OutlineTreeViewer(tree);

    // Hard-coded filters
    treeViewer.addFilter(new NamePatternFilter());
    treeViewer.addFilter(new MemberFilter());

    fForegroundColor = parent.getDisplay().getSystemColor(SWT.COLOR_DARK_GRAY);

    fInnerLabelProvider = new OutlineLabelProvider();
    fInnerLabelProvider.addLabelDecorator(new ProblemsLabelDecorator(null));
    IDecoratorManager decoratorMgr = PlatformUI.getWorkbench().getDecoratorManager();
    if (decoratorMgr.getEnabled("org.eclipse.jdt.ui.override.decorator")) //$NON-NLS-1$
        fInnerLabelProvider.addLabelDecorator(new OverrideIndicatorLabelDecorator(null));

    // AspectJ Change begin
    //treeViewer.setLabelProvider(fInnerLabelProvider);
    treeViewer.setLabelProvider(new DecoratingJavaLabelProvider(fInnerLabelProvider));
    // AspectJ Change end

    fLexicalSortingAction = new LexicalSortingAction(treeViewer);
    fSortByDefiningTypeAction = new SortByDefiningTypeAction(treeViewer);
    fShowOnlyMainTypeAction = new ShowOnlyMainTypeAction(treeViewer);

    fOutlineContentProvider = new OutlineContentProvider(false);
    treeViewer.setContentProvider(fOutlineContentProvider);
    fOutlineSorter = new OutlineSorter();
    treeViewer.setComparator(fOutlineSorter);
    treeViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);

    treeViewer.getTree().addKeyListener(getKeyAdapter());

    return treeViewer;
}

From source file:org.eclipse.bpel.ui.dialogs.SchemaImportDialog.java

License:Open Source License

protected void createImportLocation(Composite parent) {

    fGroup = new Group(parent, SWT.SHADOW_ETCHED_IN);
    fGroup.setText(Messages.SchemaImportDialog_4);
    GridLayout layout = new GridLayout(1, true);
    GridData data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;

    fGroup.setLayout(layout);/*from  w w w.j  a va2s.  co m*/
    fGroup.setLayoutData(data);

    Composite container = new Composite(fGroup, SWT.NONE);

    layout = new GridLayout();
    layout.makeColumnsEqualWidth = true;
    layout.numColumns = 4;
    container.setLayout(layout);
    data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.CENTER;
    container.setLayoutData(data);

    createRadioButton(container, Messages.SchemaImportDialog_5, BID_BROWSE_RESOURCE,
            KIND == BID_BROWSE_RESOURCE);
    createRadioButton(container, Messages.SchemaImportDialog_6, BID_BROWSE_FILE, KIND == BID_BROWSE_FILE);
    createRadioButton(container, Messages.SchemaImportDialog_7, BID_BROWSE_URL, KIND == BID_BROWSE_URL);

    // Add WSIL option
    fBtnWSIL = createRadioButton(container, Messages.SchemaImportDialog_15, BID_BROWSE_WSIL,
            KIND == BID_BROWSE_WSIL);

    // Create  location variant 
    fLocationComposite = new Composite(fGroup, SWT.NONE);

    layout = new GridLayout();
    layout.numColumns = 3;
    fLocationComposite.setLayout(layout);
    data = new GridData();
    data.grabExcessVerticalSpace = true;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;
    fLocationComposite.setLayoutData(data);

    Label location = new Label(fLocationComposite, SWT.NONE);
    location.setText(Messages.SchemaImportDialog_8);

    fLocation = new Text(fLocationComposite, SWT.BORDER);
    fLocation.setText(EMPTY);
    data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;
    fLocation.setLayoutData(data);
    fLocation.addListener(SWT.FocusOut, new Listener() {

        public void handleEvent(Event event) {
            String loc = fLocation.getText();
            if (loc.length() > 0) {
                attemptLoad(loc);
            }
        }
    });
    fLocation.addKeyListener(new KeyListener() {

        public void keyPressed(KeyEvent event) {
            if (event.keyCode == SWT.CR) {
                attemptLoad(fLocation.getText());
                event.doit = false;
            }
        }

        public void keyReleased(KeyEvent e) {
            return;
        }

    });

    fBrowseButton = createButton(fLocationComposite, BID_BROWSE, Messages.SchemaImportDialog_9, false);

    // End of location variant

    // Start Resource Variant
    fResourceComposite = new FileSelectionGroup(fGroup, new Listener() {
        public void handleEvent(Event event) {
            IResource resource = fResourceComposite.getSelectedResource();
            if (resource != null && resource.getType() == IResource.FILE) {
                // only attempt to load a resource which is not a container
                attemptLoad((IFile) resource);
                return;
            }
            markEmptySelection();
        }
    },

            Messages.SchemaImportDialog_10,
            IBPELUIConstants.EXTENSION_DOT_XSD + "," + IBPELUIConstants.EXTENSION_DOT_WSDL); //$NON-NLS-1$

    TreeViewer viewer = fResourceComposite.getTreeViewer();
    viewer.setAutoExpandLevel(2);

    // End resource variant

    // create WSIL UI widgets
    createWSILStructure(fGroup);

}

From source file:org.eclipse.bpmn2.modeler.ui.property.dialogs.DefaultSchemaImportDialog.java

License:Open Source License

protected void createImportLocation(Composite parent) {

    fKindGroup = new Group(parent, SWT.SHADOW_ETCHED_IN);
    fKindGroup.setText(Messages.SchemaImportDialog_Import_Source_Title);
    GridLayout layout = new GridLayout(1, true);
    GridData data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;

    fKindGroup.setLayout(layout);//from  www. ja v  a 2s  .  c  o m
    fKindGroup.setLayoutData(data);

    fKindButtonComposite = new Composite(fKindGroup, SWT.NONE);

    layout = new GridLayout();
    layout.makeColumnsEqualWidth = true;
    layout.numColumns = 4;
    fKindButtonComposite.setLayout(layout);
    data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.CENTER;
    fKindButtonComposite.setLayoutData(data);

    fBtnResource = createRadioButton(fKindButtonComposite, Messages.SchemaImportDialog_Workspace_Button,
            BID_BROWSE_WORKSPACE, fImportSource == BID_BROWSE_WORKSPACE);
    createRadioButton(fKindButtonComposite, Messages.SchemaImportDialog_File_System_Button, BID_BROWSE_FILE,
            fImportSource == BID_BROWSE_FILE);
    createRadioButton(fKindButtonComposite, Messages.SchemaImportDialog_URL_Button, BID_BROWSE_URL,
            fImportSource == BID_BROWSE_URL);

    // Create location variant
    fLocationComposite = new Composite(fKindGroup, SWT.NONE);

    layout = new GridLayout();
    layout.numColumns = 3;
    fLocationComposite.setLayout(layout);
    data = new GridData();
    data.grabExcessVerticalSpace = true;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;
    fLocationComposite.setLayoutData(data);

    fLocationLabel = new Label(fLocationComposite, SWT.NONE);
    fLocationLabel.setText(Messages.SchemaImportDialog_Location_Label);

    fLocation = new Text(fLocationComposite, SWT.BORDER);
    fLocation.setText(EMPTY);
    data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;
    fLocation.setLayoutData(data);
    //      fLocation.addListener(SWT.FocusOut, new Listener() {
    //
    //         public void handleEvent(Event event) {
    //            String loc = fLocation.getText();
    //            if (loc.length() > 0) {
    //               attemptLoad(loc);
    //            }
    //         }
    //      });
    fLocation.addKeyListener(new KeyListener() {

        public void keyPressed(KeyEvent event) {
            if (fImportType == BID_IMPORT_JAVA) {
            } else if (event.keyCode == SWT.CR) {
                attemptLoad(fLocation.getText());
                event.doit = false;
            }
        }

        public void keyReleased(KeyEvent e) {
            if (fImportType == BID_IMPORT_JAVA) {
                String s = fLocation.getText();
                if (s != null && s.length() > 1) {
                    if (!s.equals(fLocationText)) {
                        fLocationText = s;
                        attemptLoad(s);
                    }
                }
            }
        }

    });

    fBrowseButton = createButton(fLocationComposite, BID_BROWSE, Messages.SchemaImportDialog_Browse_Button,
            false);

    // End of location variant

    // Start Resource Variant
    fResourceComposite = new FileSelectionGroup(fKindGroup, new Listener() {
        public void handleEvent(Event event) {
            IResource resource = fResourceComposite.getSelectedResource();
            if (resource != null && resource.getType() == IResource.FILE) {
                // only attempt to load a resource which is not a control
                attemptLoad((IFile) resource);
                return;
            }
            markEmptySelection();
        }
    }, Messages.SchemaImportDialog_Select_Resource_Title, resourceFilter); //$NON-NLS-1$

    TreeViewer viewer = fResourceComposite.getTreeViewer();
    viewer.setAutoExpandLevel(2);

    // End resource variant
}

From source file:org.eclipse.bpmn2.modeler.ui.property.dialogs.SchemaImportDialog.java

License:Open Source License

protected void createImportLocation(Composite parent) {

    fKindGroup = new Group(parent, SWT.SHADOW_ETCHED_IN);
    fKindGroup.setText(Messages.SchemaImportDialog_4);
    GridLayout layout = new GridLayout(1, true);
    GridData data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;

    fKindGroup.setLayout(layout);//from  ww w .j av  a2s  .c  o m
    fKindGroup.setLayoutData(data);

    fKindButtonComposite = new Composite(fKindGroup, SWT.NONE);

    layout = new GridLayout();
    layout.makeColumnsEqualWidth = true;
    layout.numColumns = 4;
    fKindButtonComposite.setLayout(layout);
    data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.CENTER;
    fKindButtonComposite.setLayoutData(data);

    fBtnResource = createRadioButton(fKindButtonComposite, Messages.SchemaImportDialog_5, BID_BROWSE_WORKSPACE,
            fImportSource == BID_BROWSE_WORKSPACE);
    createRadioButton(fKindButtonComposite, Messages.SchemaImportDialog_6, BID_BROWSE_FILE,
            fImportSource == BID_BROWSE_FILE);
    createRadioButton(fKindButtonComposite, Messages.SchemaImportDialog_7, BID_BROWSE_URL,
            fImportSource == BID_BROWSE_URL);

    // Add WSIL option
    fBtnWSIL = createRadioButton(fKindButtonComposite, Messages.SchemaImportDialog_15, BID_BROWSE_WSIL,
            fImportSource == BID_BROWSE_WSIL);

    // Create location variant
    fLocationComposite = new Composite(fKindGroup, SWT.NONE);

    layout = new GridLayout();
    layout.numColumns = 3;
    fLocationComposite.setLayout(layout);
    data = new GridData();
    data.grabExcessVerticalSpace = true;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;
    fLocationComposite.setLayoutData(data);

    fLocationLabel = new Label(fLocationComposite, SWT.NONE);
    fLocationLabel.setText(Messages.SchemaImportDialog_8);

    fLocation = new Text(fLocationComposite, SWT.BORDER);
    fLocation.setText(EMPTY);
    data = new GridData();
    data.grabExcessVerticalSpace = false;
    data.grabExcessHorizontalSpace = true;
    data.horizontalAlignment = GridData.FILL;
    data.verticalAlignment = GridData.FILL;
    fLocation.setLayoutData(data);
    //      fLocation.addListener(SWT.FocusOut, new Listener() {
    //
    //         public void handleEvent(Event event) {
    //            String loc = fLocation.getText();
    //            if (loc.length() > 0) {
    //               attemptLoad(loc);
    //            }
    //         }
    //      });
    fLocation.addKeyListener(new KeyListener() {

        public void keyPressed(KeyEvent event) {
            if (fImportType == BID_IMPORT_JAVA) {
            } else if (event.keyCode == SWT.CR) {
                attemptLoad(fLocation.getText());
                event.doit = false;
            }
        }

        public void keyReleased(KeyEvent e) {
            if (fImportType == BID_IMPORT_JAVA) {
                String s = fLocation.getText();
                if (s != null && s.length() > 1) {
                    if (!s.equals(fLocationText)) {
                        fLocationText = s;
                        attemptLoad(s);
                    }
                }
            }
        }

    });

    fBrowseButton = createButton(fLocationComposite, BID_BROWSE, Messages.SchemaImportDialog_9, false);

    // End of location variant

    // Start Resource Variant
    fResourceComposite = new FileSelectionGroup(fKindGroup, new Listener() {
        public void handleEvent(Event event) {
            IResource resource = fResourceComposite.getSelectedResource();
            if (resource != null && resource.getType() == IResource.FILE) {
                // only attempt to load a resource which is not a control
                attemptLoad((IFile) resource);
                return;
            }
            markEmptySelection();
        }
    }, Messages.SchemaImportDialog_10, resourceFilter); //$NON-NLS-1$

    TreeViewer viewer = fResourceComposite.getTreeViewer();
    viewer.setAutoExpandLevel(2);

    // End resource variant

    // create WSIL UI widgets
    createWSILStructure(fKindGroup);

}

From source file:org.eclipse.cdt.internal.ui.text.COutlineInformationControl.java

License:Open Source License

/**
 * {@inheritDoc}//from  w w w .j a v  a 2 s  .c o  m
 */
@Override
protected TreeViewer createTreeViewer(Composite parent, int treeStyle) {
    TreeViewer treeViewer = new ProblemTreeViewer(parent, treeStyle);
    final Tree tree = treeViewer.getTree();
    tree.setLayoutData(new GridData(GridData.FILL_BOTH));
    fOutlineContentProvider = new CContentOutlinerProvider(treeViewer);
    treeViewer.setContentProvider(fOutlineContentProvider);
    fSortingAction = new LexicalSortingAction(treeViewer, ".isChecked"); //$NON-NLS-1$
    treeViewer.addFilter(new NamePatternFilter());
    long textFlags = TEXT_FLAGS;
    if (PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.OUTLINE_GROUP_MEMBERS))
        textFlags = textFlags | CElementLabels.M_SIMPLE_NAME | CElementLabels.F_SIMPLE_NAME;
    treeViewer.setLabelProvider(
            new DecoratingCLabelProvider(new AppearanceAwareLabelProvider(textFlags, IMAGE_FLAGS), true));
    treeViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);
    return treeViewer;
}

From source file:org.eclipse.dltk.internal.ui.typehierarchy.HierarchyInformationControl.java

License:Open Source License

protected TreeViewer createTreeViewer(Composite parent, int style) {
    Tree tree = new Tree(parent, SWT.SINGLE | (style & ~SWT.MULTI));
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.heightHint = tree.getItemHeight() * 12;
    tree.setLayoutData(gd);//from w  w  w .j  a v  a2s  . co  m

    TreeViewer treeViewer = new TreeViewer(tree);
    treeViewer.addFilter(new ViewerFilter() {
        public boolean select(Viewer viewer, Object parentElement, Object element) {
            return element instanceof IType || element instanceof CumulativeType;
        }
    });

    fLifeCycle = new TypeHierarchyLifeCycle(false);

    treeViewer.setSorter(new HierarchyViewerSorter(fLifeCycle));
    treeViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);

    fLabelProvider = new HierarchyLabelProvider(fLifeCycle, getPreferenceStore());
    fLabelProvider.setFilter(new ViewerFilter() {
        public boolean select(Viewer viewer, Object parentElement, Object element) {
            return hasFocusMethod((IType) element);
        }
    });

    fLabelProvider.setTextFlags(ScriptElementLabels.ALL_DEFAULT | ScriptElementLabels.T_POST_QUALIFIED);
    fLabelProvider.addLabelDecorator(new ProblemsLabelDecorator(null));
    treeViewer.setLabelProvider(fLabelProvider);

    treeViewer.getTree().addKeyListener(getKeyAdapter());

    return treeViewer;
}