Re: Goocanvas in update from Gtk2 to Gtk3

[damonachaplin gmail com]

On Sun, 2021-01-17 at 20:56 +0000, Paul Emsley via goocanvas-list
wrote:
> Hi Damon,
>
>
> OK, so it seems that the problem is my end then. Hmm. So I went back
> to 
> the demos (demo). I don't see the same problems there as I do in my 
> application, but I do see that the demo window does not have the
> menu 
> bar, the canvas "flashes" - meaning nothing is displayed when I move
> the 
> cursor out of the window (see attached) - but the normal purple box
> is 
> shown when I bring focus back to the window. Also there is text in
> the 
> console:
>
> $ ./demo
> Ink Extents: 1608,2760 87744x15856  Logical: 0,0 90152x19072
> Ink Extents: 1608,2760 59152x15856  Logical: 0,0 61560x19072
> Ink Extents: -48,3264 40920x12176  Logical: 0,0 41672x19072
> Ink Extents: 1608,3264 57440x15352  Logical: 0,0 59848x19072
> Ink Extents: 1608,2760 40272x12680  Logical: 0,0 42680x19072
> Ink Extents: 1608,2760 70504x15856  Logical: 0,0 72912x19072
>
> ** (demo:31813): WARNING **: 20:47:58.611: Could not find the
> toroid.png 
> sample file

> Is that normal?

No, it's badly messed up. I'll send you an image of what it should look
like. (Make sure you run the demo in the demo directory - that may fix
the problems with the images at least.)

I just tried downloading the goocanvas source code:
https://download.gnome.org/sources/goocanvas/2.0/goocanvas-2.0.4.tar.xz

I ran "./configure" and then "make", then "cd demo", "./demo" and it
worked fine. Try doing that.


> Thanks,
>
> Paul.
>
> p.s. You've always been helpful over the years that I've been using 
> goocanvas, I very much appreciate your replies.
>
> The vaccines being generated by Moderna/Pfizer and AstraZeneca (and 
> probably all future vaccines) incorporate a mutation to stabilize
> the 
> prefusion form of the spike protein called 2P. It's somewhere
> between 
> possible and highly likely that this widget was used in the design
> (I 
> would say more probable than not). So feel free to pat yourself on
> the 
> back for your contribution to saving the world.

That's awesome. I'll tell my mum!

Damon