On Monday 02 April 2001 11:00, Karl Ramberg wrote:
> Ned Konz wrote:
> > On Saturday 24 June 2006 22:25, Karl Ramberg wrote:
> > > Ned Konz wrote:
> > > > Also, how would you keep the italic characters from getting cut off
> > > > at the
> > > > upper right of their bounding boxes (and still have decent looking
> > > > kerning)?
> > >
> > > How does the fonts work on different background colors ?
> > > I think the form over rule must be modified. The background color of
> > > the font form must act as transparent.

It does, it's just that the edges don't look right.

> > It's using Form paint, just like the regular fonts. So you get shades of
> > grey around the edges.
> >
> > This is why I say that a colormap needs to be used:
> >
> > 8-bit Font              destination
> > --
> > 0 (transparent)         transparent
> > 40 (black)              opaque foreground color
> > other shades of grey    foreground color with varying alpha
>
> Ok. But I don't understand why the italic kerning cuts off the fonts...
> Are font forms placed after eachother based on baseline kerning and
> assuming the glyphs don't overlap verticaly? And italic does overlap
> verticaly so the font forms must be copied in front of eachother to not cut
> the glyphs ?

I think that's the problem. The bounding box is derived from the horizontal 
escapement, which of course is wrong. I think I even saw a comment somewhere 
in the code about that being wrong.

-- 
Ned Konz
currently: Stanwood, WA
email:     ned at bike-nomad.com
homepage:  http://bike-nomad.com