int dir = SwingConstants.WEST; if (orientation == JSplitPane.VERTICAL_SPLIT) dir = SwingConstants.NORTH; JButton button = new BasicArrowButton(dir); button.setBorder(null);
JButton button = new BasicOneTouchButton(BasicOneTouchButton.LEFT); button.setMinimumSize(new Dimension(ONE_TOUCH_SIZE, ONE_TOUCH_SIZE)); button.setRequestFocusEnabled(false);
  protected JButton createLeftOneTouchButton()  {    int dir = SwingConstants.WEST;    if (orientation == JSplitPane.VERTICAL_SPLIT)      dir = SwingConstants.NORTH;    JButton button = new BasicArrowButton(dir);    button.setBorder(null);    return button;  }