private void initEditor() {
    myEditor =
        new EditorComboBoxEditor(getProject(), getEditorsProvider().getFileType()) {
          @Override
          public void setItem(Object anObject) {
            if (anObject == null) {
              anObject = XExpressionImpl.EMPTY_EXPRESSION;
            }
            XExpression expression = (XExpression) anObject;
            getEditorComponent()
                .setNewDocumentAndFileType(getFileType(expression), createDocument(expression));
          }

          @Override
          protected void onEditorCreate(EditorEx editor) {
            editor.putUserData(DebuggerCopyPastePreprocessor.REMOVE_NEWLINES_ON_PASTE, true);
            editor.getColorsScheme().setEditorFontSize(myComboBox.getFont().getSize());
          }
        };
    myEditor.getEditorComponent().setFontInheritedFromLAF(false);
    myComboBox.setEditor(myEditor);
    // myEditor.setItem(myExpression);
    myComboBox.setRenderer(new EditorComboBoxRenderer(myEditor));
    myComboBox.setMaximumRowCount(XDebuggerHistoryManager.MAX_RECENT_EXPRESSIONS);
  }
  private void setUpNameComboBox(Collection<String> possibleNames) {
    final EditorComboBoxEditor comboEditor =
        new StringComboboxEditor(myProject, HaxeFileType.HAXE_FILE_TYPE, myNameComboBox);

    myNameComboBox.setEditor(comboEditor);
    myNameComboBox.setRenderer(new EditorComboBoxRenderer(comboEditor));
    myNameComboBox.setEditable(true);
    myNameComboBox.setMaximumRowCount(8);

    myContentPane.registerKeyboardAction(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            myNameComboBox.requestFocus();
          }
        },
        KeyStroke.getKeyStroke(KeyEvent.VK_N, KeyEvent.ALT_MASK),
        JComponent.WHEN_IN_FOCUSED_WINDOW);

    for (String possibleName : possibleNames) {
      myNameComboBox.addItem(possibleName);
    }
  }