[cairo] Draw a rectangle with dash lines

[ken carlino]

Thanks. I am using cario 1.0.2.  Can you please tell me if I need to
upgrade to 1.3.2 before i can apply your patch?

thanks again.

On 2/5/07, Jeff Smith <whydoubt at yahoo.com> wrote:
> I have just tracked down and sent in a patch for this bug (more info and patch in bugzilla).
>
> https://bugs.freedesktop.org/show_bug.cgi?id=4863
>
>  -- Jeff Smith
>
> ----- Original Message ----
> From: Carl Worth <cworth at cworth.org>
> To: ken carlino <ken.carlino at gmail.com>
> Cc: cairo at cairographics.org
> Sent: Saturday, February 3, 2007 9:34:22 AM
> Subject: Re: [cairo] Draw a rectangle with dash lines
>
> On Sat, 3 Feb 2007 00:27:18 -0600, "ken carlino" wrote:
> > It works in some cases, but in some cases, I see a rect with dash
> > lines and a filled triangle which covers half of the rect (from one
> > top corner to another bottom corner).
>
> This is a fairly long-standing, (and very embarrassing), known bug.
>
> Matthias Clasen first reported the bug sometime after the 1.0 release:
>
>     stroking problems with wide dashed lines
>     https://bugs.freedesktop.org/show_bug.cgi?id=4863
>
> And we added a test case for this to cairo's test suite, (leaky-dash).
>
> It's obviously a quite nasty bug, (a drawing error that is effectively
> "infinite"). And before the 1.2 release we tried making all test suite
> failures go away.
>
> This one though, we didn't have time to fix. So we made a conscious
> decision to release in spite of the known bug, (one comforting thing
> was that we at least hadn't seen a lot of duplicate reports).
>
> Anyway, here I am caught with a duplicate report just before the 1.4
> release, and we still don't have the bug fixed.
>
> If somebody wanted to try to track this down that would be very
> helpful. The way these kinds of bugs usually go is that there's a fair
> amount of work looking into exactly what happens. But once that work
> is done, actually fixing the bug isn't actually that hard.
>
> So, I've never gotten around to the investigation part, but if someone
> else could help with this, that would be great.
>
> -Carl
>
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