867                     if (toScroll == null || !toScroll.isVisible()) {

   867                     if (toScroll == null || !toScroll.isVisible()) {

   868                         return;

   868                         return;

   869                     }

   869                     }

   870                     orientation = SwingConstants.HORIZONTAL;

   870                     orientation = SwingConstants.HORIZONTAL;

   871                 }

   871                 }

   872 

   874 

   873                 if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {

   875                 if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {

   874                     JViewport vp = scrollpane.getViewport();

   876                     JViewport vp = scrollpane.getViewport();

   875                     if (vp == null) { return; }

   877                     if (vp == null) { return; }

   876                     Component comp = vp.getView();

   878                     Component comp = vp.getView();