public void setTextFieldPreferredWidth(final int charCount) {
    JComponent comp = getChildComponent();
    Dimension size = GuiUtils.getSizeByChars(charCount, comp);
    comp.setPreferredSize(size);
    Dimension preferredSize = myBrowseButton.getPreferredSize();

    boolean keepHeight = UIUtil.isUnderWin10LookAndFeel();
    preferredSize.setSize(size.width + preferredSize.width + 2,
                          keepHeight ? preferredSize.height : preferredSize.height + 2);

    setPreferredSize(preferredSize);
  }
public void setTextFieldPreferredWidth(final int charCount)