Re: Slight problem w/ fonts

[Adam Fedor]

Nicola Pero wrote:

> > > The graphic shows that your fonts are being rendered to their point size
> > > instead of their size in pixels, which is how GNUstep (incorrectly) used to
> > > handle fonts.
> > >
> > > pixelSize = round (pointSize * (dpi * (1/72)))
>
> As a user and/or as an application writer, I don't understand how this is
> supposed to work.
>
> We draw lines and rectangles and fill colors using pixels.  All right,
> probably in postscript if you draw a line of width 1 and length 3 in the
> standard scaling that is supposed to draw a line of xxx millimeters of
> width and 3*xxx millimeters of length, but the fact is we ignore that and
> always draw a line of width 1 pixel and length 3 pixel (I seriously doubt
> you can draw lines in millimeters on the screen anyway, since the pixel
> size depends on the monitor and I don't think there is a way you can know
> the exact pixel size from software, and if you can't know the exact pixel
> size, no way you can draw in millimeters, you can only draw in pixels).


No that's not right. If we are drawing in pixels then that's an 
oversight on our part. We should be drawing things to points, just like 
in PostScript.  The X server should have all the information necessary 
to make this transformation and it should be easy for us to set up the 
initial scaling of a window to be correct when it is created.


--
Adam Fedor, Digital Optics            | I'm glad I hate spinach, because
http://www.doc.com                    | if I didn't, I'd eat it, and you
http://www.gnustep.org                | know how I hate the stuff.