RE: Text Problem 0.90RC1

["Young, Robert" <Robert Young dsto defence gov au>]

> Lars Clausen wrote:
> On Tue, 14 May 2002, Robert Young wrote:
> > Just a quick problem I found. Place a piece of text on a 
> diagram. Change
> > it's font. Move it about - it's bounds are not correct.
> > Compiled with no options i.e. Freetype OFF.
>
> What fonts are you changing from and to, at what size and zoom?

New Diagram. New Text. At this point it is using Courier, size 0.8, and 100%
zoom. Change font to AvantGarde-Book and when the text is moved about it
leaves stuff behind - hence me thinking its a bounding box problem.
The bounding box, however, is OK at 141% and 200% zoom...

> > Any ideas where to look in the source. Tried lib/text.c and
> > obj/standard/objtext.c (from memory) but couldn't see where....
>
> The place to look is font_string_width in lib/font.c.  The 
> problem is this:
<Snip>
> I am tempted to for all small sizes just render a larger size and then
> scale in Dia, no matter the uglyness.  For now, there is a 
> wiggle factor of
> 1.1, which leaves some extra room in some cases.  We may need 
> to increase
> it a bit.

I took a look at lib/font.c and see what you mean. I did, however, notice
that the problem  is only with this particular font face that it occurs.
Mind you, that is just for size 0.8, zoom 100%. Also, there was a message
appearing in the console when using AvantGarde-Book about this font
(-schumacher-clean-medium-r-normal ...) not supporting all characters in my
locale (en_AU) - then complains that it is missing character set ISO8859-1.
I'd probably blame it on this. Your fudge factor of 1.1 works pretty well
(>90% of the time).

I guess the next question is : what needs to be done to get Freetype working
well enough to replace GDK fonts?? Or is Freetype justa stepping stone to
Pango? Should I spend my lunch time playing with Freetype enabled, instead?

Regards,
Rob.