Java Code Examples for org.eclipse.swt.widgets.Tree

/**
 * Create the composite.
 */
public CustomElementSelectionForm(Composite parent, int style) {
	super(parent, style);
	setLayout(new GridLayout(2, false));

	treeViewer = new TreeViewer(this, SWT.BORDER);
	Tree tree = getTreeViewer().getTree();

	// Set a minimum height to prevent weird dialog dimensions
	tree.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).span(2, 1).minSize(0, 200).create());

	elementLabel = new Label(this, SWT.NONE);
	elementLabel.setLayoutData(GridDataFactory.swtDefaults().create());
	elementLabel.setText("New Label");

	elementInput = new SuffixText(this, SWT.BORDER);// new Text(this, SWT.BORDER);
	elementInput.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create());
}
 

@Override
protected TreeViewer createViewer(final Composite parent, final AbstractColumnLayout columnLayout,
		final int style) {
	final TreeViewer viewer = new TreeViewer(parent, virual ? (style | VIRTUAL) : style);
	final Tree tree = viewer.getTree();
	tree.setLinesVisible(linesVisible);
	tree.setHeaderVisible(headerVisible);

	int columnIndex = 0;
	for (final String columnLabel : columnLabels) {

		final TreeViewerColumn viewerColumn = new TreeViewerColumn(viewer, NONE);
		final TreeColumn column = viewerColumn.getColumn();
		columnLayout.setColumnData(column, createColumnLayoutData(columnIndex));
		column.setText(columnLabel);
		column.setMoveable(moveable);

		columnIndex++;
	}

	return viewer;
}
 

@Override
protected boolean shouldCreateToolTip(final Event e) {
	this.lastDescriptor = null;
	if (e.widget instanceof Tree) {
		final Tree tree = (Tree) e.widget;
		final TreeItem item = tree.getItem(new Point(e.x, e.y));

		if (null != item && item.getData() instanceof ResultNode) {
			final ResultNode node = (ResultNode) item.getData();
			if (node.getElement() instanceof TestCase) {
				final URI uri = ((TestCase) node.getElement()).getURI();
				if (null != uri) {
					final StyledTextDescriptor descriptor = getDescriptor(uri);
					if (null != descriptor) {
						this.lastDescriptor = descriptor;
					}
				}
			}
		}
	}

	return null != this.lastDescriptor;
}
 

protected void createColumns ( final Tree tree )
{
    final TreeColumn typeFilterColumn = new TreeColumn ( tree, SWT.NONE );
    typeFilterColumn.setText ( getString ( "_UI_TypeFilterColumn_label" ) ); //$NON-NLS-1$
    typeFilterColumn.setResizable ( true );
    typeFilterColumn.setWidth ( 200 );

    final TreeColumn idFilterColumn = new TreeColumn ( tree, SWT.NONE );
    idFilterColumn.setText ( getString ( "_UI_IdFilterColumn_label" ) ); //$NON-NLS-1$
    idFilterColumn.setResizable ( true );
    idFilterColumn.setWidth ( 200 );

    final TreeColumn actionFilterColumn = new TreeColumn ( tree, SWT.NONE );
    actionFilterColumn.setText ( getString ( "_UI_ActionFilterColumn_label" ) ); //$NON-NLS-1$
    actionFilterColumn.setResizable ( true );
    actionFilterColumn.setWidth ( 200 );
}
 

/**
 * Creates and returns a new IGazeHandler object from the specified object
 * and partRef, or returns null if no handler object is defined for that object.
 */
public static IGazeHandler createHandler(Object target,
        IWorkbenchPartReference partRef) {
	
	// create gaze handler for a StyledText widget within an EditorPart
    if (target instanceof StyledText &&
            partRef instanceof IEditorReference) {
        return new StyledTextGazeHandler(target); //can go back to using partRef
    
    } else if (target instanceof Browser) {
    	//create gaze handler for a Browser Stack overflow and Bug Report widget
    	//cannot get associated partRef
    	return new BrowserGazeHandler(target);

    } else if (target instanceof Tree &&
    		partRef instanceof IViewReference &&
    		partRef.getTitle().equals("Project Explorer")) {
    	//create gaze handler for a Project Explorer Tree
        return new ProjectExplorerGazeHandler(target, partRef);
    }

    return null;
}
 

private void removeSelectedPackage(SelectionEvent e, TreeViewer treeViewer) {
	Tree tree = getTree(e);
	if (tree == null) {
		return;
	}
	TreeItem[] selection = tree.getSelection();
	if (selection != null && selection.length > 0) {
		for (TreeItem item : selection) {
			TreeItem parent = item.getParentItem();
			if (parent == null) {
				removePackage(item);
				updatePageComplete(tree);
			} else {
				alert("请选择要删除的包!");
			}
		}
	} else {
		alert("请选择要删除的包!");
	}
}
 

protected void computeAndDisplayStats(AvroSchemaEditor editor) {
	
	SchemaViewer masterViewer = editor.getContentPart().getSchemaViewer(AvroContext.Kind.MASTER);
	TreeViewer treeViewer = masterViewer.getTreeViewer();
	AvroNode inputNode = (AvroNode) treeViewer.getInput();
	NodeType inputType = inputNode.getType();
	String name = AttributeUtil.getNameFromAttribute(inputNode);
	
	NodeStats stats = new NodeStats("Compute stats of " + inputType.toString().toLowerCase() 
			+ " " + name + " from editor " + editor.getName());
	stats.start();
	
	Tree tree = treeViewer.getTree();
	
	TreeItem[] items = tree.getItems();
	for (TreeItem item : items) {
		visitTreeItem(item, stats);
	}
	
	stats.finish();
	AvroSchemaLogger.logStats(stats, false);
	
}
 

@Override
public void reloadViewer() {

	final Tree tree = _tourViewer.getTree();
	tree.setRedraw(false);
	{
		final Object[] expandedElements = _tourViewer.getExpandedElements();
		final ISelection selection = _tourViewer.getSelection();

		_tourViewer.setInput(_rootItem = new TVICatalogRootItem(this));

		_tourViewer.setExpandedElements(expandedElements);
		_tourViewer.setSelection(selection);
	}
	tree.setRedraw(true);
}
 

@Override
protected void constrainShellSize() {
	super.constrainShellSize();
	if (Util.isCocoa()) {
		final Tree tree = getTreeViewer().getTree();
		final FontDescriptor treeFontDescriptor = FontDescriptor.createFrom(JFaceResources.getBannerFont()).setStyle(SWT.NORMAL);
		final Font treeFont = treeFontDescriptor.createFont(tree.getDisplay());
		updateTreeFont(treeFont);
		tree.addDisposeListener(new DisposeListener() {
			@Override
			public void widgetDisposed(DisposeEvent e) {
				treeFontDescriptor.destroyFont(treeFont);
			}
		});
	}
}
 

/**
 * ツリーの選択されている部分をヘッダー付きでクリップボードにコピーします
 * 
 * @param header ヘッダー
 * @param tree ツリー
 */
public static void copyTree(String[] header, Tree tree) {
    TreeItem[] treeItems = tree.getSelection();
    StringBuilder sb = new StringBuilder();
    sb.append(StringUtils.join(header, "\t"));
    sb.append("\r\n");
    for (TreeItem column : treeItems) {
        String[] columns = new String[header.length];
        for (int i = 0; i < header.length; i++) {
            columns[i] = column.getText(i);
        }
        sb.append(StringUtils.join(columns, "\t"));
        sb.append("\r\n");
    }
    Clipboard clipboard = new Clipboard(Display.getDefault());
    clipboard.setContents(new Object[] { sb.toString() }, new Transfer[] { TextTransfer.getInstance() });
}
 

/**
 * Creates tree viewer to manage content
 * 
 * @param parent
 *            parent control
 */
private void createTreeViewer(Composite parent) {
	int style = SWT.H_SCROLL | SWT.V_SCROLL;
	// Create the tree
	Tree widget = new Tree(parent, style);
	// Configure the layout
	GridData data = new GridData(GridData.FILL_BOTH);
	data.heightHint = widget.getItemHeight() * 12;
	widget.setLayoutData(data);

	treeViewer = new TreeViewer(widget);
	namePatternFilter = new QuickOutlineNamePatternFilter();
	treeViewer.addFilter(namePatternFilter);
	treeContentProvider = getContentProvider();
	treeViewer.setContentProvider(treeContentProvider);
	treeLabelProvider = getLabelProvider();
	treeViewer.setLabelProvider(treeLabelProvider);
	treeViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);
	treeViewer.setUseHashlookup(true);
	treeViewer.setInput(getInitialInput());
}
 

private void createObjectsNavigator(Composite parent) {
	objectsNavigator = new TreeViewer(parent, SWT.BORDER);
	Tree tree = objectsNavigator.getTree();
	tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
	objectsNavigator
			.setContentProvider(new ObjectsNavigatorContentProvider());
	objectsNavigator.setLabelProvider(new ObjectsNavigatorLabelProvider());

	objectsNavigator
			.addSelectionChangedListener(new ISelectionChangedListener() {

				public void selectionChanged(SelectionChangedEvent event) {
					Object selItem = ((IStructuredSelection) event
							.getSelection()).getFirstElement();
					if (selItem instanceof ObjectCategoryItem) {
						updateDetailsPanel((ObjectCategoryItem) selItem);
					}
				}
			});
}
 

/**
 * getExpandTreePaths
 *  
 * @param tree
 * @param selectedItem
 * @return TreePath[]
 */
public static TreePath[] getExpandTreePaths(Tree tree, TreeItem selectedItem) {
    ArrayList<Object> items = new ArrayList<Object>();
    internalCollectTreeItems(items, tree);
    ArrayList<Object> result = new ArrayList<Object>();

    for (Iterator<Object> it = items.iterator(); it.hasNext();) {
        Item item = (Item) it.next();
        // if (item == selectedItem) {
        TreePath treePath = getTreePathFromItem(item);
        if (treePath != null) {
            result.add(treePath);
        }
        // }
    }

    return (TreePath[]) result.toArray(new TreePath[items.size()]);
}
 

/**
 * @see org.eclipse.gef.EditPartViewer#findObjectAtExcluding(Point, Collection, EditPartViewer.Conditional)
 */
@Override
public EditPart findObjectAtExcluding(Point pt, Collection exclude, Conditional condition) {
  if (getControl() == null)
    return null;

  final Tree tree = getTreeControl();
  Rectangle area = tree.getClientArea();
  if (pt.x < area.x || pt.y < area.y || pt.x >= area.x + area.width || pt.y >= area.y + area.height)
    return null;

  EditPart result = null;
  TreeItem tie = tree.getItem(new org.eclipse.swt.graphics.Point(pt.x, pt.y));

  if (tie != null) {
    result = (EditPart) tie.getData();
  } else if (tree.getData() instanceof EditPart) {
    result = (EditPart) tree.getData();
  }
  while (result != null) {
    if ((condition == null || condition.evaluate(result)) && !exclude.contains(result))
      return result;
    result = result.getParent();
  }
  return null;
}
 

private IControlThemer createThemer(Control control, int fontStyle, int alpha, Color defaultBg)
{
	// No themer exists, create a new one
	if (control instanceof Tree)
	{
		return new TreeThemer((Tree) control);
	}
	if (control instanceof Table)
	{
		return new TableThemer((Table) control);
	}
	if (fontStyle != SWT.NONE)
	{
		return new StyledFontThemer(control, fontStyle, defaultBg);
	}
	if (alpha > -1)
	{
		return new AlphaBlendThemer(control, alpha, defaultBg);
	}

	return new ControlThemer(control, defaultBg);
}
 

/**
 * Create contents of the wizard.
 *
 * @param parent the parent
 */
public void createControl(Composite parent) {
	Composite container = new Composite(parent, SWT.NULL);
	container.setLayout(new GridLayout(1, false));
	
	treeViewer = new WorkbenchTreeViewer(container, SWT.SINGLE, CarchaWizard.EXTENSIONS_ADO);
	Tree tree = treeViewer.getTree();
	tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
	
	treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
		@Override
		public void selectionChanged(SelectionChangedEvent event) {
			setPageComplete(validatePage());
		}
	});
	StructuredSelection selection = getSelection();
	if(selection != null)
		treeViewer.setSelection(selection);
	
	setControl(container);
	
	setPageComplete(validatePage());
}
 

@Override
public void reloadViewer() {

	if (_isInReload) {
		return;
	}

	final Tree tree = _tourViewer.getTree();
	tree.setRedraw(false);
	_isInReload = true;
	{
		final Object[] expandedElements = _tourViewer.getExpandedElements();
		final ISelection selection = _tourViewer.getSelection();

		_tourViewer.setInput(_rootItem = new TVICollatedTour_Root(this));

		_tourViewer.setExpandedElements(expandedElements);
		_tourViewer.setSelection(selection, true);
	}
	_isInReload = false;
	tree.setRedraw(true);
}
 

/**
 * Create contents of the wizard.
 *
 * @param parent the parent
 */
public void createControl(Composite parent) {
	Composite container = new Composite(parent, SWT.NULL);
	container.setLayout(new GridLayout(1, false));
	
	treeViewer = new WorkbenchTreeViewer(container, SWT.SINGLE, CarchaWizard.EXTENSIONS_REA);
	Tree tree = treeViewer.getTree();
	tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
	
	treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
		@Override
		public void selectionChanged(SelectionChangedEvent event) {
			setPageComplete(validatePage());
		}
	});
	StructuredSelection selection = getSelection();
	if(selection != null)
		treeViewer.setSelection(selection);
	
	setControl(container);
	
	setPageComplete(validatePage());
}
 

private LatticeTabUI(TabFolder tabFolderMIPA) 
{
	TabItem tabItemLattice = new TabItem(tabFolderMIPA, SWT.NONE);
	tabItemLattice.setToolTipText("representation of lattice");
	tabItemLattice.setText("Lattice");

	SashForm sashLattice = new SashForm(tabFolderMIPA, SWT.NONE);
	tabItemLattice.setControl(sashLattice);

	StyledText styledTextLattice = new StyledText(sashLattice, SWT.BORDER
			| SWT.READ_ONLY);
	styledTextLattice.setText("Information for lattice are given here \n.");
	styledTextLattice.setToolTipText("Information for lattice.");

	Group grpLatticeTree = new Group(sashLattice, SWT.NONE);
	grpLatticeTree.setToolTipText("tree view of lattice");
	grpLatticeTree.setText("Lattice Tree View");
	
	latticeTreeViewer = new TreeViewer(grpLatticeTree, SWT.BORDER);
	Tree latticeTree = latticeTreeViewer.getTree();
	latticeTree.setBounds(10, 29, 444, 526);
	//latticeTreeViewer.setLabelProvider(new LatticeTreeLabelProvider());
	//latticeTreeViewer.setContentProvider(new LatticeTreeContentProvider());
	sashLattice.setWeights(new int[] { 1, 1 });
}
 

@Override
public void setChildren(final FileEntry entry, FileEntry[] children) {
    final Tree t = mViewer.getTree();
    if (t != null && t.isDisposed() == false) {
        Display display = t.getDisplay();
        if (display.isDisposed() == false) {
            display.asyncExec(new Runnable() {
                @Override
                public void run() {
                    if (t.isDisposed() == false) {
                        // refresh the entry.
                        mViewer.refresh(entry);

                        // force it open, since on linux and windows
                        // when getChildren() returns null, the node is
                        // not considered expanded.
                        mViewer.setExpandedState(entry, true);
                    }
                }
            });
        }
    }
}
 

@Override
public void run() {

	if (fTourViewer != null) {

		final ColumnViewer viewer = fTourViewer.getViewer();
		if (viewer instanceof TreeViewer) {

			final TreeViewer treeViewer = (TreeViewer) viewer;
			final Object firstElement = ((StructuredSelection) treeViewer.getSelection()).getFirstElement();

			if (firstElement != null) {

				final Tree tree = treeViewer.getTree();
				tree.setRedraw(false);
				{
					treeViewer.collapseAll();
					treeViewer.setExpandedElements(new Object[] { firstElement });
					treeViewer.setSelection(new StructuredSelection(firstElement), true);
				}
				tree.setRedraw(true);
			}
		}
	}
}
 

@Override
public void reloadViewer() {

	final Tree tree = _tourViewer.getTree();
	tree.setRedraw(false);
	{
		final Object[] expandedElements = _tourViewer.getExpandedElements();
		final ISelection selection = _tourViewer.getSelection();

		_tourViewer.setInput(_rootItem = new TVICompareResultRootItem());

		_tourViewer.setExpandedElements(expandedElements);
		_tourViewer.setSelection(selection);
	}
	tree.setRedraw(true);
}
 

/**
 * Create a new tree listing Solr system information.
 * 
 * @param composite
 *            Parent composite.
 */
public SystemTree(Composite composite) throws SophieException {
	// Instantiate Tree.
	tree = new Tree(composite, SWT.BORDER);
	tree.setHeaderVisible(true);
	tree.setLayoutData(new GridData(GridData.FILL_BOTH));

	// Create name/value columns.
	columnName = new TreeColumn(tree, SWT.LEFT);
	columnName.setText("Name");
	columnValue = new TreeColumn(tree, SWT.LEFT);
	columnValue.setText("Value");

	// Populate tree with data from Solr.
	populate();

	// Pack columns.
	columnName.pack();
	columnValue.pack();
}
 

public TreeItem getSelectedRootItemFromMainTree(){
	Tree tree = this.getMainTree();
	if(tree == null){
		return null;
	}
	
	TreeItem [] items = tree.getSelection();
	if(items == null || items.length == 0){
		return null;
	}
	
	if(items[0].getData() instanceof StackAnalyzedInfo){
		return items[0].getParentItem();
	}
	return items[0];
}
 

/**
	 * create the views context menu
	 */
	private void createContextMenu() {

		final MenuManager menuMgr = new MenuManager();

		menuMgr.setRemoveAllWhenShown(true);

		menuMgr.addMenuListener(new IMenuListener() {
			@Override
			public void menuAboutToShow(final IMenuManager menuMgr2) {
//				fillContextMenu(menuMgr2);
			}
		});

		final Tree tree = _colorProfileViewer.getTree();
		final Menu treeContextMenu = menuMgr.createContextMenu(tree);

		tree.setMenu(treeContextMenu);

		_columnManager.createHeaderContextMenu(tree, treeContextMenu);
	}
 

public static TreeItem importProject(String path,Tree tree,Display display) throws Exception{
	String project = readProjectName(path);
	Vector <IDeviceObject>vecDevices = readDevices(path);
	
	TreeItem root = new TreeItem(tree, SWT.NONE);
	root.setText(project);
	root.setImage(new Image(display, ClassLoader.getSystemResourceAsStream("icons/project.png")));
	
	TreeItem devices = new TreeItem(root, SWT.NONE);
	devices.setText("Devices");
	devices.setImage(new Image(display, ClassLoader.getSystemResourceAsStream("icons/devices.png")));
	
	for(int i =0;i<vecDevices.size();i++){
		TreeItem column = new TreeItem(devices, SWT.NONE);
		column.setText(vecDevices.get(i).name);
		column.setData("index",vecDevices.get(i).index);
		column.setData("sn",vecDevices.get(i).sn);
		column.setData("pixel",vecDevices.get(i).pixel);
		column.setData("name",vecDevices.get(i).name);
		column.setImage(new Image(display, ClassLoader.getSystemResourceAsStream("icons/disconn.png")));
	}
	return root;
}
 

public static Vector<String> getSelections(Tree tree,String prj){
	Vector<String> vecFiles = new Vector<String>();
	TreeItem[] tiRoot = tree.getItems();
	for(int i = 0;i<tiRoot.length;i++){
		if(tiRoot[i].getText().equals(prj))
			if(tiRoot[i].getChecked() == true){
				//Scripts
				TreeItem tiScript = tiRoot[i].getItems()[2];
				TreeItem[] tiCases = tiScript.getItems();
				for(int j =0;j<tiCases.length;j++)
					if(tiCases[j].getChecked()){
						vecFiles.add(System.getProperty("user.dir") + 
								"/workspace/"+tiRoot[i].getText()+"/Scripts/"+tiCases[j].getText());
					}
			}else
				break;
		else
			continue;
	}
	return vecFiles;
}
 

/**
 * Returns true if the specified project can be found in the 'Package Explorer' or 'Project View',
 * otherwise returns false. Throws a WidgetNotFoundException exception if the 'Package Explorer'
 * or 'Project Explorer' view cannot be found.
 *
 * @param bot The SWTWorkbenchBot.
 * @param projectName The name of the project to be found.
 * @return if the project exists
 */
public static boolean doesProjectExist(final SWTWorkbenchBot bot, String projectName) {
  SWTBotView explorer = getPackageExplorer(bot);
  if (explorer == null) {
    throw new WidgetNotFoundException(
        "Could not find the 'Package Explorer' or 'Project Explorer' view.");
  }

  // Select the root of the project tree in the explorer view
  Widget explorerWidget = explorer.getWidget();
  Tree explorerTree = bot.widget(widgetOfType(Tree.class), explorerWidget);
  SWTBotTreeItem[] allItems = new SWTBotTree(explorerTree).getAllItems();
  for (int i = 0; i < allItems.length; i++) {
    if (allItems[i].getText().equals(projectName)) {
      return true;
    }
  }
  return false;
}
 

private List<MDataAdapter> getDragSelection(DragSourceEvent event){
	if(event.getSource() instanceof DragSource){
		List<MDataAdapter> dataAdapters = new ArrayList<MDataAdapter>();
		Control control = ((DragSource)event.getSource()).getControl();
		if(control instanceof Tree && 
				((Tree) control).getSelection().length>0){
			for(TreeItem tItem : ((Tree) control).getSelection()){
				Object data = tItem.getData();
				if(data instanceof MDataAdapter){
					dataAdapters.add((MDataAdapter) data);
				}
			}
			return dataAdapters;				
		}
	}
	return new ArrayList<MDataAdapter>(0);
}
 

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
	IWorkbenchWindow activeWorkbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
	if (null == activeWorkbenchWindow) {
		return null;
	}
	IWorkbenchPage activePage = activeWorkbenchWindow.getActivePage();
	if (null == activePage) {
		return null;
	}
	IWorkbenchPart activePart = activePage.getActivePart();
	if (!(activePart instanceof CommonNavigator)) {
		return null;
	}

	CommonNavigator navigator = (CommonNavigator) activePart;
	CommonViewer commonViewer = navigator.getCommonViewer();

	Tree navigatorTree = commonViewer.getTree();
	List<TreeItem> visibleItems = new ArrayList<>();
	collectChildren(navigatorTree.getItems(), visibleItems);

	List<Object> visibleData = visibleItems.stream().map(i -> i.getData()).collect(Collectors.toList());

	commonViewer.setSelection(new StructuredSelection(visibleData), false);

	return null;
}
 

@Override
public void keyPressed(KeyEvent event) {
	if (event.keyCode == SWT.ARROW_DOWN) {
		Tree tree = treeViewer.getTree();
		if (tree.isDisposed()) {
			return;
		}
		if (tree.isFocusControl()) {
			return;
		}
		tree.setFocus();
		return;
	}
	if (event.character == '\r') {
		ISelection selection = treeViewer.getSelection();
		openSelectionAndCloseDialog(selection);
		return;
	}
	boolean allowedChar = false;
	allowedChar = allowedChar || event.character == '*';
	allowedChar = allowedChar || event.character == '(';
	allowedChar = allowedChar || event.character == ')';
	allowedChar = allowedChar || Character.isJavaIdentifierPart(event.character);
	allowedChar = allowedChar || Character.isWhitespace(event.character);
	if (!allowedChar) {
		event.doit = false;
		return;
	}
	if (treeViewer == null) {
		return;
	}

}
 

public void createControl(Composite parent) {
	Composite container = new Composite(parent, SWT.NULL);
	GridLayout layout = new GridLayout();
	container.setLayout(layout);
	layout.numColumns = 2;
	layout.verticalSpacing = 9;

	Label label = new Label(container, SWT.NULL);
	label.setText("&Project:");
	
	tree = new Tree(container, SWT.SINGLE | SWT.BORDER);
	tree.setHeaderVisible(false);
	GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
	gridData.verticalSpan = 20;
	gridData.horizontalSpan = 2;
	tree.setLayoutData(gridData);		
	tree.addListener(SWT.Selection, new Listener() {
		public void handleEvent(final Event event) {
			TreeItem item = (TreeItem) event.item;
			projectName = item.getText();
			dialogChanged();
		}
	});
	tree.setVisible(false);
	
	initialize();
	setControl(container);
	dialogChanged();
}
 

/**
 * Fills an SWT Tree object with a parsed XML document
 * 
 * @param document		the parsed XML document
 */
public void fillDomTree(final Document document) {
	selectedTreeItem = null;
	
	removeAll();
	if (document != null) {
		Tree t = getTree();
		Node[] childs = XMLUtils.toNodeArray(document.getChildNodes());
		t.setData(document);
		t.setData("childs", childs);
		t.setItemCount(childs.length);
	}
}
 

/**
 * Gets the property descriptor of the selected property for this databaseObjectBeanInfo 
 * @param databaseObjectBeanInfo : BeanInfo of the selected databaseObject in the TreeExplorerView
 * @return PropertyDescriptor
 */
public PropertyDescriptor getSelectedPropertyDescriptor(BeanInfo databaseObjectBeanInfo) {
	PropertyDescriptor propertyDescriptor = null;
	
	// gets the properties editor
	PropertySheet view = ConvertigoPlugin.getDefault().getPropertiesView();
	Tree tree = (Tree) view.getCurrentPage().getControl();
	// gets the property selected in the property editor if one is selected
	TreeItem[] items = tree.getSelection();
	if (items.length > 0) {
		TreeItem selectedItem = items[0];
	
		// gets the local name of the selected property
		String text = selectedItem.getText();
        
        // gets the PropertyDescriptors of this databaseObject
        PropertyDescriptor[] descriptors = databaseObjectBeanInfo.getPropertyDescriptors();
        
        String displayName = null;
		int i = 0;
		
		// gets the PropertyDescriptor of the selected property 
		while (i < descriptors.length && propertyDescriptor == null) {
			displayName = descriptors[i].getDisplayName();
			if (displayName.equals(text))
				propertyDescriptor = descriptors[i];
			i++;
		}
	}	
	return propertyDescriptor;
}
 

@Override
public void keyPressed(KeyEvent event) {
	if (event.keyCode == SWT.ARROW_DOWN) {
		Tree tree = treeViewer.getTree();
		if (tree.isDisposed()) {
			return;
		}
		if (tree.isFocusControl()) {
			return;
		}
		tree.setFocus();
		return;
	}
	if (event.character == '\r') {
		ISelection selection = treeViewer.getSelection();
		openSelectionAndCloseDialog(selection);
		return;
	}
	boolean allowedChar = false;
	allowedChar = allowedChar || event.character == '*';
	allowedChar = allowedChar || event.character == '(';
	allowedChar = allowedChar || event.character == ')';
	allowedChar = allowedChar || Character.isJavaIdentifierPart(event.character);
	allowedChar = allowedChar || Character.isWhitespace(event.character);
	if (!allowedChar) {
		event.doit = false;
		return;
	}
	if (treeViewer == null) {
		return;
	}

}
 

private void setCheckedItem(SelectionEvent e) {
	if (e.detail == SWT.CHECK) {
		TreeItem selectedTreeItem = (TreeItem) e.item;
		// 如果有父节点，选择父节点
		selectAllParentItems(selectedTreeItem);
		// 如果有子节点，全选子节点
		selectAllSubItems(selectedTreeItem);

		updatePageComplete((Tree) e.getSource());
	}
}
 

private void updatePageComplete(Tree tree) {
	TreeItem[] rootItems = tree.getItems();
	nodeListManager.clearSelectedNodeList();
	getSelectedItems(rootItems, nodeListManager.getSelectedNodeList());
	if (nodeListManager.getSelectedNodeList().size() > 0) {
		setPageComplete(true);
	} else {
		setPageComplete(false);
	}
}
 

private Tree getTree(SelectionEvent e) {
	Control[] controls = ((Button) e.getSource()).getParent().getChildren();
	for (Object control : controls) {
		if (control instanceof Tree) {
			return (Tree) control;
		}
	}
	return null;
}
 

@Override
public void keyPressed(KeyEvent event) {
	if (event.keyCode == SWT.ARROW_DOWN) {
		Tree tree = treeViewer.getTree();
		if (tree.isDisposed()) {
			return;
		}
		if (tree.isFocusControl()) {
			return;
		}
		tree.setFocus();
		return;
	}
	if (event.character == '\r') {
		ISelection selection = treeViewer.getSelection();
		openSelectionAndCloseDialog(selection);
		return;
	}
	boolean allowedChar = false;
	allowedChar = allowedChar || event.character == '*';
	allowedChar = allowedChar || event.character == '(';
	allowedChar = allowedChar || event.character == ')';
	allowedChar = allowedChar || Character.isJavaIdentifierPart(event.character);
	allowedChar = allowedChar || Character.isWhitespace(event.character);
	if (!allowedChar) {
		event.doit = false;
		return;
	}
	if (treeViewer == null) {
		return;
	}

}
 

private void setupTree(final Tree tree) {
    tree.setLinesVisible(true);
    tree.setHeaderVisible(true);
    tree.setLayout(new TreeLayout());

    /* Pad table height by four pixels to increase readability */
    tree.addListener(/* SWT.MeasureItem */41, new MeasureItemHeightListener(4));
    tree.addMouseListener(new MouseAdapter() {
        @Override
        public void mouseDown(final MouseEvent e) {
        }
    });
}