public void update(AnActionEvent e) {
    super.update(e);

    final Project project = e.getData(DataKeys.PROJECT);
    final VirtualFile file = e.getData(DataKeys.VIRTUAL_FILE);

    boolean visible =
        project != null
            && file != null
            && !file.isDirectory()
            && file.getFileType() == CppSupportLoader.CPP_FILETYPE
            && !Communicator.isHeaderFile(file);
    boolean enabled = visible;

    if (!visible) {
      visible = ActionPlaces.MAIN_MENU.equals(e.getPlace());
    }

    e.getPresentation().setEnabled(enabled);
    e.getPresentation().setVisible(visible);

    if (visible) {
      final String s =
          "Do c&ompile for " + (file != null ? file.getName() : "selected c/c++ fileToCompile");
      e.getPresentation().setText(s);
      e.getPresentation().setDescription(s);
    }
  }
 private void updateIcon(AnAction action) {
   if (isToggleable()
       && (myPresentation.getIcon() == null
           || myInsideCheckedGroup
           || !UISettings.getInstance().SHOW_ICONS_IN_MENUS)) {
     action.update(myEvent);
     myToggled =
         Boolean.TRUE.equals(
             myEvent.getPresentation().getClientProperty(Toggleable.SELECTED_PROPERTY));
     if (ActionPlaces.MAIN_MENU.equals(myPlace) && SystemInfo.isMacSystemMenu
         || UIUtil.isUnderNimbusLookAndFeel()
         || UIUtil.isUnderWindowsLookAndFeel() && SystemInfo.isWin7OrNewer) {
       setState(myToggled);
     } else if (!(getUI() instanceof GtkMenuItemUI)) {
       if (myToggled) {
         setIcon(ourCheckedIcon);
         setDisabledIcon(IconLoader.getDisabledIcon(ourCheckedIcon));
       } else {
         setIcon(ourUncheckedIcon);
         setDisabledIcon(IconLoader.getDisabledIcon(ourUncheckedIcon));
       }
     }
   } else {
     if (UISettings.getInstance().SHOW_ICONS_IN_MENUS) {
       Icon icon = myPresentation.getIcon();
       if (action instanceof ToggleAction && ((ToggleAction) action).isSelected(myEvent)) {
         icon = new PoppedIcon(icon, 16, 16);
       }
       setIcon(icon);
       if (myPresentation.getDisabledIcon() != null) {
         setDisabledIcon(myPresentation.getDisabledIcon());
       } else {
         setDisabledIcon(IconLoader.getDisabledIcon(icon));
       }
     }
   }
 }