signals with GTK_TYPE_ADJUSTMENT

View: New views

2 Messages — Rating Filter: Alert me

signals with GTK_TYPE_ADJUSTMENT

by Dov Grobgeld-2 :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

In hope that the mailing list isn't dead yet, I wonder if someone can help me with some gob2 syntax.

I got stuck on trying to create signals with the following signature (copied from GtkTextView) in gob:

signals[SET_SCROLL_ADJUSTMENTS] =
    g_signal_new (I_("set_scroll_adjustments"),
        G_OBJECT_CLASS_TYPE (gobject_class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (MyFooClass, set_scroll_adjustments),
        NULL, NULL,
        _gtk_marshal_VOID__OBJECT_OBJECT,
        G_TYPE_NONE, 2,
        GTK_TYPE_ADJUSTMENT,
        GTK_TYPE_ADJUSTMENT);

I tried the following:

signal last NONE (GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT)
gboolean
set_scroll_adjustments (self,
                          Gtk:Adjustment    *hadjustment,
                          Gtk:Adjustment    *vadjustment)

but got the error "Error: Unknown GTK+ type 'GTK_TYPE_ADJUSTMENT' among signal types".

This also failed:

signal last NONE (OBJECT=Gtk:Adjustment, OBJECT=Gtk:Adjustment)
gboolean
set_scroll_adjustments (self,
                          Gtk:Adjustment    *hadjustment,
                          Gtk:Adjustment    *vadjustment)

which gave the error "Error: syntax error before '='".

In the end I used:

signal last NONE (OBJECT, OBJECT)
gboolean
set_scroll_adjustments (self,
                          Gtk:Adjustment    *hadjustment,
                          Gtk:Adjustment    *vadjustment)

and then applied an external patch:

-            G_TYPE_OBJECT,
-            G_TYPE_OBJECT);
+            GTK_TYPE_ADJUSTMENT,
+            GTK_TYPE_ADJUSTMENT);

But of course I wonder whether there is any syntax to do this in gob2?

Thanks!
Dov

--
to unsubscribe:
send mail to minimalist@... with "unsubscribe gob-list" in the subject

Re: signals with GTK_TYPE_ADJUSTMENT

by Jiri Lebl :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

Dov Grobgeld wrote:

> In hope that the mailing list isn't dead yet, I wonder if someone can
> help me with some gob2 syntax.
>
> I got stuck on trying to create signals with the following signature
> (copied from GtkTextView) in gob:
>
> signals[SET_SCROLL_ADJUSTMENTS] =
> g_signal_new (I_("set_scroll_adjustments"),
> G_OBJECT_CLASS_TYPE (gobject_class),
> G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
> G_STRUCT_OFFSET (MyFooClass, set_scroll_adjustments),
> NULL, NULL,
> _gtk_marshal_VOID__OBJECT_OBJECT,
> G_TYPE_NONE, 2,
> GTK_TYPE_ADJUSTMENT,
> GTK_TYPE_ADJUSTMENT);
>
> I tried the following:
>
> signal last NONE (GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT)
> gboolean
> set_scroll_adjustments (self,
> Gtk:Adjustment *hadjustment,
> Gtk:Adjustment *vadjustment)

1) you have a gboolean return and you specify NONE for your return, you
should have BOOLEAN there
2) Use OBJECT or POINTER instead of GTK_TYPE_ADJUSTMENT. These types are
used for the marshalling, and it is sufficient to pass objects as OBJECTs or
even just POINTERs. The type checking is done at a different place.

George

--
George <jirka@...>
Few people can be happy unless they hate some other person,
nation or creed.
-- Bertrand Russell

--
to unsubscribe:
send mail to minimalist@... with "unsubscribe gob-list" in the subject