private void updateCaretPositionText() {
   if (myErrorMessage != null) {
     myCaretPositionLabel.setText(
         IdeBundle.message("label.scope.editor.caret.position", myCaretPosition + 1));
   } else {
     myCaretPositionLabel.setText("");
   }
   myPositionPanel.setVisible(myErrorMessage != null);
   myCaretPositionLabel.setVisible(myErrorMessage != null);
   myPanel.revalidate();
 }
  public ScopeEditorPanel(Project project, final NamedScopesHolder holder) {
    myProject = project;
    myHolder = holder;

    myPackageTree = new Tree(new RootNode(project));

    myButtonsPanel.add(createActionsPanel());

    myTreePanel.setLayout(new BorderLayout());
    myTreePanel.add(ScrollPaneFactory.createScrollPane(myPackageTree), BorderLayout.CENTER);

    myTreeToolbar.setLayout(new BorderLayout());
    myTreeToolbar.add(createTreeToolbar(), BorderLayout.WEST);

    myTreeExpansionMonitor = PackageTreeExpansionMonitor.install(myPackageTree, myProject);

    myTreeMarker =
        new Marker() {
          public boolean isMarked(VirtualFile file) {
            return myCurrentScope != null
                && (myCurrentScope instanceof PackageSetBase
                    ? ((PackageSetBase) myCurrentScope).contains(file, myHolder)
                    : myCurrentScope.contains(PackageSetBase.getPsiFile(file, myHolder), myHolder));
          }
        };

    myPatternField.setDialogCaption("Pattern");
    myPatternField
        .getDocument()
        .addDocumentListener(
            new DocumentAdapter() {
              public void textChanged(DocumentEvent event) {
                onTextChange();
              }
            });

    myPatternField
        .getTextField()
        .addCaretListener(
            new CaretListener() {
              public void caretUpdate(CaretEvent e) {
                myCaretPosition = e.getDot();
                updateCaretPositionText();
              }
            });

    myPatternField
        .getTextField()
        .addFocusListener(
            new FocusListener() {
              public void focusGained(FocusEvent e) {
                if (myErrorMessage != null) {
                  myPositionPanel.setVisible(true);
                  myPanel.revalidate();
                }
              }

              public void focusLost(FocusEvent e) {
                myPositionPanel.setVisible(false);
                myPanel.revalidate();
              }
            });

    initTree(myPackageTree);
    new UiNotifyConnector(
        myPanel,
        new Activatable() {
          @Override
          public void showNotify() {}

          @Override
          public void hideNotify() {
            cancelCurrentProgress();
          }
        });
    myPartiallyIncluded.setBackground(MyTreeCellRenderer.PARTIAL_INCLUDED);
    myRecursivelyIncluded.setBackground(MyTreeCellRenderer.WHOLE_INCLUDED);
  }
 private void showErrorMessage() {
   myMatchingCountLabel.setText(StringUtil.capitalize(myErrorMessage));
   myMatchingCountLabel.setForeground(JBColor.red);
   myMatchingCountLabel.setToolTipText(myErrorMessage);
 }