public void mouseReleased(MouseEvent ev){
  if (!tryPopup(ev) && SwingUtilities.isLeftMouseButton(ev)) {
    hmo.handleHeaderColumnReleased(ev.getPoint());
  }
}

public void mouseReleased ( MouseEvent ev ) { if ( ! tryPopup ( ev ) && SwingUtilities . isLeftMouseButton ( ev ) ) { hmo . handleHeaderColumnReleased ( ev . getPoint ( ) ) ; } }
invoked when a mouse button has been released on a component .
