I've got a GtkBox-derived widget (RBHeader, for anyone interested) and
it currently animates 25 times per second. Obviously, I want to
disable this timeout when it's not visible so I can keep the CPU from
waking up needlessly.
g_object_connect (header, "map-event", G_CALLBACK
(rb_header_map_callback), NULL);
g_object_connect (header, "unmap-event", G_CALLBACK
(rb_header_map_callback), NULL);
static gboolean
rb_header_map_callback (GtkWidget *widget, GdkEvent *event, gpointer user_data)
{
RBHeader *header = RB_HEADER (widget);
rb_header_set_animation_timeout (header);
return TRUE;
}
I get a runtime warning:
[EMAIL PROTECTED]:~/Hacking/rhythmbox$ shell/rhythmbox
(lt-rhythmbox:25023): GLib-GObject-WARNING **: IA__g_object_connect:
invalid signal spec "map-event"
(lt-rhythmbox:25023): GLib-GObject-WARNING **: IA__g_object_connect:
invalid signal spec "unmap-event"
In the manual
http://library.gnome.org/devel/gtk/unstable/GtkWidget.html#GtkWidget-map-event
it says: "To receive this signal, the GdkWindow associated to the
widget needs to enable the GDK_STRUCTURE_MASK mask. GDK will enable
this mask automatically for all new windows."
But, I don't have a GdkWindow to play with until AFTER the map, I
thought that was the point... So I don't know what to do.
Save me! Thanks
Alex
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