1 public class TreeViewer4 { 2     public static void main(String[] args) { 3         new TreeViewer4().open(); 4     } 5  6     public void open() { 7         final Display display = new Display(); 8         final Shell shell = new Shell(); 9         shell.setSize(300, 300);10         // -----------界面核心代码-------------------11         shell.setLayout(new FillLayout());12         // 用ContainerCheckedTreeViewer完全替换TreeViewer13         ContainerCheckedTreeViewer tv = new ContainerCheckedTreeViewer(shell, SWT.BORDER);14         tv.setUseHashlookup(true); // 加快查找速度15 16         Tree tree = tv.getTree();17         tree.setHeaderVisible(true);18         TreeColumn column = new TreeColumn(tree, SWT.LEFT);19         column.setText("名称");20         column.setWidth(150);21         column = new TreeColumn(tree, SWT.LEFT);22         column.setText("子结点数");23         column.setWidth(80);24         column = new TreeColumn(tree, SWT.LEFT);25         column.setText("性别");26         column.setWidth(40);27 28         tv.setContentProvider(new TreeViewerContentProvider());29         tv.setLabelProvider(new MyTableLableProvider());30         // 和TableViewer一样，数据的入口也是setInput方法31         List<Country> input = (List)DataFactory.createTreeData();32         tv.setInput(input);33         MyActionGroup2 actionGroup = new MyActionGroup2(tv);// 改用另一个ActionGroup34         actionGroup.fillContextMenu(new MenuManager());// 将按钮注入到菜单对象中35         // -----------END------------------36         shell.open();37         while (!shell.isDisposed()) {38             if (!display.readAndDispatch())39                 display.sleep();40         }41         display.dispose();42     }43 }

 1 public class MyActionGroup2 extends ActionGroup { 2     private ContainerCheckedTreeViewer tv; 3  4     public MyActionGroup2(ContainerCheckedTreeViewer tv) { 5         this.tv = tv; 6     } 7  8     public void fillContextMenu(IMenuManager mgr) { 9         MenuManager menuManager = (MenuManager) mgr;10         menuManager.add(new SelectAllAction());11         menuManager.add(new RemoveEntryAction());12         Tree tree = tv.getTree();13         Menu menu = menuManager.createContextMenu(tree);14         tree.setMenu(menu);15     }16 17     private class SelectAllAction extends Action {18         public SelectAllAction() {19             setText("勾选当前结点的所有子结点");20         }21 22         public void run() {23             IStructuredSelection selection = (IStructuredSelection) tv.getSelection();24             ITreeEntry entry = (ITreeEntry) (selection.getFirstElement());25             tv.setSubtreeChecked(entry, true); // false不勾选26         }27     }28 29     // 删除结点的Action类30     private class RemoveEntryAction extends Action {31         public RemoveEntryAction() {32             setText("删除");33         }34 35         public void run() {36             Object[] checks = tv.getCheckedElements();// 取得被勾选的结点（包括灰选）37             if (checks.length == 0) {38                 MessageDialog.openInformation(null, "提示", "请先勾选记录");39                 return;40             }41             List<ITreeEntry> inputList = (List<ITreeEntry>) tv.getInput();42             for (Object object : checks) {43                 if (tv.getGrayed(object))44                     continue;// 灰选结点不删除45                 ITreeEntry entry = (ITreeEntry) object;46                 remove(inputList, entry);47                 tv.remove(entry);48             }49         }50 51         private void remove(List<ITreeEntry> list, ITreeEntry entry) {52             if (list == null)53                 return;54             for (Iterator it = list.iterator(); it.hasNext();) {55                 ITreeEntry o = (ITreeEntry) it.next();56                 if (o.getName().equals(entry.getName())) {57                     it.remove();58                     return;59                 } else {60                     remove(o.getChildren(), entry);61                 }62             }63         }64     }65 }