Re: gEDA-user: Font sizes messed up in gschem on Mac OS X 10.6

[Peter Clifton <pcjc2@xxxxxxxxx>]

On Mon, 2009-12-21 at 13:47 +0100, Christian Schilmoeller wrote:

> The problem is that I'm really new to gschem and don't know how the proper 
> behaviour of text and fonts should be. All I have is a postscript printout of 
> some test drawing (which looks really nice) and the screen view (which looks
> completely wrong with the original source code and "a bit wrong" with my quick-
> and-dirty-quick patch of setting the GEDA_FONT_FACTOR from 1.3 to 0.08.
> I have a linux partition on my hard disk too. I'll try to install geda/gschem
> there too, for having a reference.
> Maybe it would be possible to print out the reported DPI value as a debug output?
> One could compare linux and mac version then.

The DPI values aren't handled directly by gEDA.. cairo and pango do that
work for us, and they are very complex pieces of code.

There are various different cairo and pango backends and build
configurations, so it is possible that those libraries are causing you
issues.

I can't think of any easy steps to debug the issue further. I guess if
the rest of the text in the UI is working "properly", then pango / cairo
aren't totally mis-configured.

Perhaps there is a bug in our code which is manifesting when the native
Mac OS ATSUI font APIs are used (assuming that is where your fonts are
coming from).. perhaps there is a bug in the ATSUI backend, I'm just not
sure.

Perhaps try rebuilding cairo with the following ./configure options
added:

--disable-freetype --enable-quartz --enable-quartz-font
--enable-quartz-image --enable-png

(Although that is just a guess.. from
http://trac.macports.org/ticket/15052 )

You might need to rebuild gEDA after you install the new cairo, since
the installed header files may change.


I'm hoping one of the gEDA users who use Mac OS X will come forward with
a recipe for getting gEDA 1.6.0 working. (Or at least re-assure me that
it can be made to work!)

Best wishes,

Peter C.



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