public static Icon getEvenIcon(Icon icon) {
   LayeredIcon layeredIcon = new LayeredIcon(2);
   layeredIcon.setIcon(EMPTY_ICON, 0);
   if (icon != null
       && icon.getIconHeight() <= EMPTY_ICON.getIconHeight()
       && icon.getIconWidth() <= EMPTY_ICON.getIconWidth()) {
     layeredIcon.setIcon(
         icon,
         1,
         (-icon.getIconWidth() + EMPTY_ICON.getIconWidth()) / 2,
         (EMPTY_ICON.getIconHeight() - icon.getIconHeight()) / 2);
   }
   return layeredIcon;
 }
  protected boolean doSetIcon(
      DefaultMutableTreeNode node, @Nullable String path, Component component) {
    if (StringUtil.isNotEmpty(path) && !new File(path).isFile()) {
      Messages.showErrorDialog(
          component,
          IdeBundle.message("error.file.not.found.message", path),
          IdeBundle.message("title.choose.action.icon"));
      return false;
    }

    String actionId = getActionId(node);
    if (actionId == null) return false;

    final AnAction action = ActionManager.getInstance().getAction(actionId);
    if (action != null && action.getTemplatePresentation() != null) {
      if (StringUtil.isNotEmpty(path)) {
        Image image = null;
        try {
          image =
              ImageLoader.loadFromStream(
                  VfsUtil.convertToURL(VfsUtil.pathToUrl(path.replace(File.separatorChar, '/')))
                      .openStream());
        } catch (IOException e) {
          LOG.debug(e);
        }
        Icon icon = new File(path).exists() ? IconLoader.getIcon(image) : null;
        if (icon != null) {
          if (icon.getIconWidth() > EmptyIcon.ICON_18.getIconWidth()
              || icon.getIconHeight() > EmptyIcon.ICON_18.getIconHeight()) {
            Messages.showErrorDialog(
                component,
                IdeBundle.message("custom.icon.validation.message"),
                IdeBundle.message("title.choose.action.icon"));
            return false;
          }
          node.setUserObject(Pair.create(actionId, icon));
          mySelectedSchema.addIconCustomization(actionId, path);
        }
      } else {
        node.setUserObject(Pair.create(actionId, null));
        mySelectedSchema.removeIconCustomization(actionId);
        final DefaultMutableTreeNode nodeOnToolbar = findNodeOnToolbar(actionId);
        if (nodeOnToolbar != null) {
          editToolbarIcon(actionId, nodeOnToolbar);
          node.setUserObject(nodeOnToolbar.getUserObject());
        }
      }
      return true;
    }
    return false;
  }
  /**
   * Returns the drag icon used to represent a cell in all drag operations.
   *
   * @param tree the parent tree object
   * @param dragObject the dragged object
   * @param index the index of the dragged object in the tree
   * @return the drag icon
   */
  public Icon getDragIcon(JTree tree, Object dragObject, int index) {
    ContactListTreeCellRenderer dragC =
        (ContactListTreeCellRenderer)
            getTreeCellRendererComponent(
                tree,
                dragObject,
                false, // is selected
                false, // is expanded
                true, // is leaf
                index,
                true // has focus
                );

    // We should explicitly set the bounds of all components in order that
    // they're correctly painted by paintIcon afterwards. This fixes empty
    // drag component in contact list!
    dragC.setBounds(0, 0, dragC.getIconWidth(), dragC.getIconHeight());

    Icon rightLabelIcon = rightLabel.getIcon();
    int imageHeight = 0;
    int imageWidth = 0;
    if (rightLabelIcon != null) {
      imageWidth = rightLabelIcon.getIconWidth();
      imageHeight = rightLabelIcon.getIconHeight();
      dragC.rightLabel.setBounds(tree.getWidth() - imageWidth, 0, imageWidth, imageHeight);
    }

    dragC.statusLabel.setBounds(0, 0, statusLabel.getWidth(), statusLabel.getHeight());

    dragC.nameLabel.setBounds(
        statusLabel.getWidth(), 0, tree.getWidth() - imageWidth - 5, nameLabel.getHeight());

    dragC.displayDetailsLabel.setBounds(
        displayDetailsLabel.getX(),
        nameLabel.getHeight(),
        displayDetailsLabel.getWidth(),
        displayDetailsLabel.getHeight());

    return dragC;
  }