Re: Tooltip bugs revisited

On Sun, Nov 11, 2012 at 09:18:08PM +0000, corvid wrote:
> Jorge wrote:
> >   Testing  revealed  the  workaround  concealed  another problem,
> > which  I  don't remember whether it was detected before, and this
> > is that viewport mouse events get "through" the panel UI!.
> > 
> >   How?,  placing  the  mouse  pointer over the panel (e.g. to the
> > right  of  the  Tools  button,  or even inside the Location), and
> > scrolling  a  page  full  of  links under it, will make the mouse
> > pointer  change to a hand, and the destination link appear in the
> > status bar area.
> > 
> >   This  bug  is  revealed by disabling the workaround: just apply
> > the small attached patch.
> > 
> >   Clearly there's a viewport offset problem somewhere. Correcting
> > it may save us lots of headaches in the future.
> > 
> >   Does anybody know or has a clue of where this may be happening?
> > 
> >   TIA.
> 
> Does this work for you?

> diff -r 8b4259cdc6da dw/fltkviewport.cc
> --- a/dw/fltkviewport.cc      Sat Nov 10 17:55:34 2012 +0000
> +++ b/dw/fltkviewport.cc      Sun Nov 11 21:14:40 2012 +0000
> @@ -318,6 +318,10 @@
>        mouse_y = Fl::event_y();
>        positionChanged();
>        break;
> +
> +   case FL_LEAVE:
> +      mouse_x = mouse_y = -1;
> +      break;
>     }
>  
>     return FltkWidgetView::handle (event);

  Yes!  It works.

  Please elaborate a bit.

  Some  history:  FLTK2  had  widget  coordinates relative to the
parent.  When  we  ported  dillo  to  FLTK-1.3 which has absolute
coords,  a  bunch  of  offset  problems  sprung here and there. I
remember hunting/fixing most of them.

  I thought this bug could be related to widget offsets, although
that's just one possibility, not a certainty.


-- 
  Cheers
  Jorge.-