Re: How do I use cairomm and librsvg?

[ghosty airmail cc]

Thanks a lot! I don't know how I missed that - it does exactly what I'm 
looking for.

On 2018-07-22 09:48, Ezekiel Oruven wrote:
> What's wrong with using the cobj() method in Cairo::Context? I thought
> Cairo::Context did provide access to the underlying C type, just for
> this situation.
>
> https://www.cairographics.org/documentation/cairomm/reference/classCairo_1_1Context.html#a614bcb4e9570c5b5c54b3bfc304c194a
>
> This method returns a pointer to Cairo::Context::cobject which is just
> a typedef of cairo_t. Then you shouldn't need to do any of that
> subclassing work. I haven't tested your code in any way, but that's
> what my understanding from the documentation is.
>
> On Sat, Jul 21, 2018 at 10:02 PM, <ghosty airmail cc> wrote:
>
> > I have a C++ program that uses cairomm, and I'd like to use librsvg
> > with it to render SVG files to Cairo surfaces. However, librsvg is
> > in C, and rsvg_handle_render_cairo expects a cairo_t value, while
> > cairomm's Cairo::Context doesn't give access to the underlying C
> > type (it's protected). I tried subclassing Cairo::Context and
> > implementing a function that returned a pointer to the underlying
> > cairo_t type, but it doesn't seem to be working.
> >
> > Code is as follows:
> >
> > main.cpp: https://paste.gnome.org/p9fzmosnu [1]
> > Makefile: https://paste.gnome.org/p6qswmxgr [2]
> > mor.glade: https://paste.gnome.org/phlvgqqt5 [3]
> >
> > It just prints
> > (mor:7839): librsvg-CRITICAL **: rsvg_handle_render_cairo_sub:
> > assertion 'handle != NULL' failed
> > repeatedly, and doesn't render anything.
> >
> > Any help would be appreciated.
> > _______________________________________________
> > gtkmm-list mailing list
> > gtkmm-list gnome org
> > https://mail.gnome.org/mailman/listinfo/gtkmm-list [4]
>
>
>
> Links:
> ------
> [1] https://paste.gnome.org/p9fzmosnu
> [2] https://paste.gnome.org/p6qswmxgr
> [3] https://paste.gnome.org/phlvgqqt5
> [4] https://mail.gnome.org/mailman/listinfo/gtkmm-list