bug#13512: 24.3.50; Mini-window glitch with GTK

[Dmitry Antipov <dmantipov@yandex.ru>]

On 01/22/2013 03:41 PM, Eli Zaretskii wrote:

> Thanks.  Next, I'd suggest to look at the backtrace and the parameters
> it is called with, and compare that with a non-GTK build where this
> problem doesn't happen.

[adding Jan to CC:]

I'm just curious about this bug's origin. For me, it's GTK3-only issue,
and everything works fine with GTK2; but the original report from Xue
notes GTK2.

I found that the size values returned by gtk_widget_get_preferred_size
in xg_update_tool_bar_sizes are different for GTK3 and GTK2. For GTK2,
width and height are always 47 and 44 pixels; for GTK3, it's 37x36 for
the first call to xg_update_tool_bar_size and 43x44 for the subsequent
calls. Visually the toolbar size doesn't change and it looks the same
between GTK2 and GTK3.

Finally, this seems to be a question for Jan: GTK3 docs says that the
handle box widget is obsolete (http://developer.gnome.org/gtk3/stable/GtkHandleBox.html),
so why we prefer it for both GTK2 and GTK3?

Dmitry