2010/8/1 Evan Nemerson <[email protected]>
> On Sat, 2010-07-31 at 22:08 +0200, Sébastien Wilmet wrote:
> >
> >
> > 2010/7/31 Evan Nemerson <[email protected]>
> > On Sat, 2010-07-31 at 17:59 +0200, Sébastien Wilmet wrote:
> > > Hello!
> > >
> > > What I want to do is to implement a GtkAction derived class
> > which sets
> > > GtkActionClass:toolbar_item_type to
> > GTK_TYPE_MENU_TOOL_BUTTON in its
> > > class_init function.
> >
> >
> > Vala doesn't currently expose *Class structs in the bindings,
> > so AFAIK
> > what you're talking about can't be done easily. I'm not
> > exactly an
> > expert on GObject, but I think you should be able to hack
> > something
> > together by going creating bindings for GtkActionClass then
> > getting
> > access to it with GLib.Object.get_class. This is untested, but
> > you
> > should get the idea:
> >
> >
> > /* In a vapi */
> > [Compact, CCode (cname = "GtkActionClass")]
> > public class GtkActionClass {
> > public GLib.Type menu_item_type;
> > public GLib.Type toolbar_item_type;
> > }
> >
> > /* Your code */
> > unowned GtkActionClass ac = (GtkActionClass) this.get_class
> > ();
> > ac.toolbar_item_type = typeof (MenuToolButton);
> >
> >
> > I have this error:
> > error: Access to instance member `GLib.Object.get_class' denied
>
> You aren't going to be able to access it from a static construct block.
> Try it from within a regular construct block.
>
>
Yeah it works! Thanks. I thought it was an obligation to put the code in the
static construct block since in C it is in *class_init().
So here is my code (with the vapi you wrote):
using Gtk;
public class MenuToolAction : Action
{
public MenuToolAction (string name, string? label, string? tooltip,
string? stock_id)
{
GLib.Object (name: name, label: label, tooltip: tooltip, stock_id:
stock_id);
unowned GtkActionClass ac = (GtkActionClass) get_class ();
ac.toolbar_item_type = typeof (MenuToolButton);
}
}
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