[cairo] Holiday cleanup

[Behdad Esfahbod]

On Thu, 2007-12-27 at 23:12 -0500, Sasha Kovar wrote:
> .-- Behdad Esfahbod:
> | That's all for now.  What are some issues you want to fix for 1.6?
> 
> Hi.  I'd like to resurrect an old thread [1] on the default units used when
> writing SVGs.  

I've not read that thread.  Not sure what the conclusion is.  I leave it
to Emmanuel to decide if this is something we should fix.

> In my work, i read in SVGs via librsvg, and write them out again using
> cairo's svg surface.  With the current behavior of the svg tag specifying
> the units in points, the output files render at a different size than the
> originals I read in, which seems counterintuitive, and is a problem for me.
> 
> While the correct solution may be as Emmanuel Pacaud describes, allowing the
> user to specify the units used, a simpler solution that at least respects
> the default svg unit of pixels would be a welcome stopgap.

But there's no such physical unit as a pixel.  Points are well-defined,
as a 1/72 of an inch.  Not so for pixels.

> I've been using a version of this patch against 1.4.2 (Ubuntu feisty's
> version) for months, and for my use it has worked well.  The attached patch
> is against the 1.5.4 snapshot. 
> 
> I welcome any comments, corrections to my understanding of the situation, or
> even application of the patch :)
> 
> Thanks much,
> Sasha
> 
> [1] http://lists.freedesktop.org/archives/cairo/2006-May/006833.html

-- 
behdad
http://behdad.org/

"Those who would give up Essential Liberty to purchase a little
 Temporary Safety, deserve neither Liberty nor Safety."
        -- Benjamin Franklin, 1759