Re: GtkImageView

[Emmanuele Bassi <ebassi gmail com>]

On Tue, 2007-12-04 at 15:16 +0100, Jeffrey Ratcliffe wrote:
> On 23/11/2007, Emmanuele Bassi <ebassi gmail com> wrote:
> > you can ask here if it's something relevant with the glib-perl API or
> > the build environment.
>
> I seem to be making good progress, but am stuck trying to bind the
> following enum:
>
> typedef enum
> {
>     GTK_IMAGE_TRANSP_COLOR = 0,
>     GTK_IMAGE_TRANSP_BACKGROUND,
>     GTK_IMAGE_TRANSP_GRID
> } GtkImageTransp;

the library should provide the GType for this enumeration, not the
bindings; you should ask the author to do that, because bindings will
have to keep a private function and nobody will be able to use that
enumeration in properties or signal marshallers even in C.

> #define GTKIMAGEVIEWPERL_TYPE_IMAGE_TRANSP
> gtkimageviewperl_gtk_image_transp_get_type()
> GType gtkimageviewperl_gtk_image_transp_get_type (void);
>
> which seems to be included properly. I also defined:
>
> #define SvGtkImageTransp(sv)   (gperl_convert_enum
> (GTKIMAGEVIEWPERL_TYPE_IMAGE_TRANSP, (sv))
> #define newSVGtkImageTransp(e)   (gperl_convert_back_enum
> (GTKIMAGEVIEWPERL_TYPE_IMAGE_TRANSP, (e))

you have to actually write the GType function:

  GType
  gtkimageviewperl_gtk_image_transp_get_type (void)
  {
    static GType e_type = 0;

    if (G_UNLIKELY (e_type == 0))
      {
        const GEnumValue values[] = {
          { GTK_IMAGE_TRANSP_COLOR, "GTK_IMAGE_TRANSP_COLOR", "color" },
          { GTK_IMAGE_TRANSP_BACKGROUND, "GTK_IMAGE_TRANSP_BACKGROUND", "background" },
          { GTK_IMAGE_TRANSP_GRID, "GTK_IMAGE_TRANSP_GRID", "grid" },
          { 0, NULL, NULL },
        };

        e_type =
          g_enum_register_static (g_intern_static_string ("GtkImageTransp"), values);
      }

    return e_type;
  }

and then use the usual bindings stuff. you can also look at
Gnome2::GConf for some custom defined types.

ciao,
 Emmanuele.

-- 
Emmanuele Bassi,
W: http://www.emmanuelebassi.net
B: http://log.emmanuelebassi.net