Re: Dia ChangeLog report for Fri Sep 12 07:23:02 2003 (UTC)

["James K. Lowden" <jklowden schemamania org>]

On Fri, 12 Sep 2003 05:49:14 -0500, Lars Clausen <lrclause@cs.uiuc.edu>
wrote:
> On 12 Sep 2003, Cyrille Chepelov wrote:
> > Le Fri, Sep 12, 2003, Ă  09:36:28AM +0200, Dia ChangeLog Daemon a 
> > ©crit:
> >
> >> +	* lib/dialibartrenderer.c (begin_render):
> >> +	* app/render_libart.c (begin_render): Use correct DPI for screen
> >> +	(well, actually the default DPI of 75 for now).
> >
> > can't we find the actual DPI, rather than defaulting on a value which
> > hardly matches the current practice (typical 96 dpi on modern screens)
> > ?
> 
> That's what was used in Pango up to 1.2.3.  Truly, we should query the
> screen for its DPI (we can get screen width in pixels and mm, but
> apparently the mm isn't very reliable).  It claims for instance that my
> screen is >43 cm width, but the total viewable width is <37 cm.  Right
> now, I just want fonts to correspond to the diagram size.  Later it'd be
> nice to actually figure out the right size and make one cm at 100% be
> one cm on-screen. 

When I first started using GTK2 apps, the menu fonts and such were really
tiny.  The fix was to add "-dpi 100" to the command line when starting my
X server.  GTK2 noticed, and started using bigger fonts.  Everything
became readable.  

All to say, there's a mechanism in there somewhere.  I'll let you know if
I find out what it is.   

--jkl