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Subject: Re: [geda-user] Text scaling during zoom in gschem
From: Stefan Salewski <mail AT ssalewski DOT de>
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Date: Tue, 16 Oct 2012 01:19:33 +0200
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On Mon, 2012-10-15 at 21:13 +0400, Vladimir Zhbanov wrote:
> On Mon, Oct 15, 2012 at 09:24:11AM -0700, Colin D Bennett wrote:
> ...
> > It's as if, when the exact font face (Liberation Sans?) is not
> > found, some default font is used, without regard to the requested
> > point size.
> 
> Exact font is Arial. This is defined in gschem/src/o_text.c in gschem
> sources. It is used for displaying, for printing output gschem uses
> Helvetica (and this is defined in libgeda/src/f_print.c). If the exact
> font is not found, X window system will substitute it with some other
> font which in its opinion fits best (and the printing system operates in
> the same way). 
> 

Thanks for your explanation.

As far as I have understood the initial bug report, gschem refuses to
scale the font at all, when the desired fonts are not available. Can we
understand this? Zooming should use cairo's scale, which should work
always. Or is Peter C. using a own font size for each zoom level -- to
optimize quality? That would makes things really difficult. For my peted
clown I have used simple scale operation, looks good and is very easy. I
guess Peter C. has requested a special font with a special size, but
forget to check which exact font extent he got -- that would explain at
least the problem when selecting text.