Web lists-archives.com

Re: What should be used?




Emmanuel,
I asked  on the other thread but nobody replied :(

What is the minimum GTK+ version for GtkLinkButton signnal "activate-link".

And how to stop propagating the click on it with GTK+2 where this is
not available?

Thank you.

On Wed, Jul 29, 2015 at 10:12 AM, Emmanuele Bassi <ebassi@xxxxxxxxx> wrote:
> Hi;
>
> On 29 July 2015 at 14:55, Stefan Salewski <mail@xxxxxxxxxxxx> wrote:
>> On Wed, 2015-07-29 at 13:05 +0100, Emmanuele Bassi wrote:
>>> If you have legacy code that requires disabling double buffering, you
>>> should probably invest some time into porting it to a proper solution
>>> integrated with the GTK drawing model;
>>
>> It would be great if someone could port this example to GTK3:
>>
>> http://www.cairographics.org/threaded_animation_with_cairo/
>
> Those examples, especially the one that uses Unix signals to interrupt
> the program flow, ought to be burned with fire. Not only they are
> questionable in GTK 2.x, but they are also unportable jumbles of code
> that work by sheer accident.
>
> If you want to draw with Cairo on a separate thread Because Of
> Reasons™, then you need to create a Cairo surface using the GdkWindow
> API — see gdk_window_create_similar_image_surface() — then draw on it
> from within your thread; at the end of the thread, queue a redraw on
> the widget. At the same time, inside a GtkWidget::draw handler, use
> the Cairo surface you drew on inside the thread, set it as you source,
> and draw the surface on the Cairo context that GTK gives you. This
> way, the drawing code will happen in a separate thread, and you'll
> draw only when GTK tells you to draw.
>
> All considerations on accessing GTK and GDK API from the thread that
> called gtk_init/gtk_main (or g_application_run(), if you're writing
> modern code) still apply.
>
> Ciao,
>  Emmanuele.
>
> --
> https://www.bassi.io
> [@] ebassi [@gmail.com]
_______________________________________________
gtk-list mailing list
gtk-list@xxxxxxxxx
https://mail.gnome.org/mailman/listinfo/gtk-list