Re: Glib::wrap with copy=true semantics?

[Philip Langdale <plangdale vmware com>]

Murray Cumming wrote:
> Also, in gtkmm, I don't think we ever do an extra refcount on
> GtkAdjustments. We only do this in combination with Glib::RefPtr<>,
> which we don't use with GtkObjects. Without Glib::RefPtr<> there is no
> way to unref it again.

I have attached a test case.

Thanks,

--phil

#include <gtk/gtkadjustment.h>
#include <gtkmm/adjustment.h>
#include <gtkmm/main.h>
#include <iostream>

int main(int argc, char *argv[])
{
   Gtk::Main app(argc, argv);

   GtkObject *adjustment = gtk_adjustment_new(0, 0, 0, 0, 0, 0);
   g_object_ref(G_OBJECT(adjustment));
   gtk_object_sink(adjustment);

   // Ref Count is 1.

   Gtk::Adjustment *wrapper = Glib::wrap(GTK_ADJUSTMENT(adjustment), true);

   // Ref Count is 2, as expected.

   delete wrapper;

   // Ref Count is still 2; expecting 1.

   g_object_unref(G_OBJECT(adjustment));

   // Ref Count is 1; expecting 0.

   std::cout << "Ref count is " << G_OBJECT(adjustment)->ref_count << std::endl;

   return 0;
}