Re: Problem to open a new window using libglade

["Karl H. Beckers" <karl h beckers gmx net>]

Well,

there's prolly several ways of doing it, but smth. along the following
lines should work:

        GladeXML *gxml = glade_xml_new (GLADE_FILE, "dialog1", NULL);
        GtkWidget *dialog = glade_xml_get_widget(gxml, "dialog1");
        g_assert(dialog);
        GtkResponseType result;

        // register function to be executed in intervals
        g_timeout_add(1000, update_pbar, dialog);
        result = gtk_dialog_run(GTK_DIALOG(dialog));

        if (result == GTK_RESPONSE_OK)
        {
        }

        gtk_widget_destroy(dialog);
        dialog = NULL;

then you need the timeout function:

gboolean
update_pbar (gpointer dialog)
{
        // stop executing and unregister this function if dialog has
        // been set to NULL
        if (!dialog) return 0;
        // if dialog has not been displayed yet, don't bother updating 
        // the progress bar
        if (!GTK_WIDGET_VISIBLE(GTK_WIDGET(dialog))) return 1;

        ...
        do whatever needs to be done to update the progressbar here

        return 1;
}

HTH,

Karl.



Am Freitag, den 02.03.2007, 23:32 +0100 schrieb patrick:
> Thanks for your answer.
>
> > if I'm not completely mistaken here, this has nothing to do with glade.
> > The thing just is, that you need to return to the main loop from the
> > callback for the widgets to be drawn properly.
> > That is prolly why you put in your gtk_main_iteration though I doubt
> > there is a guaranteed way to make this work.
> I think this is my problem.
> So I made a new dialog:
>
>         GladeXML *gxml = glade_xml_new (GLADE_FILE, "dialog1", NULL);
>         GtkWidget *dialog = glade_xml_get_widget(gxml, "dialog1");
>         GtkResponseType result;
>
>         result = gtk_dialog_run(GTK_DIALOG(dialog));
>
>         if (result == GTK_RESPONSE_OK)
>         {
>         }
>         gtk_widget_destroy(dialog);
>
> The window (dialog) now appears, but I want a "progress window", with
> a progressbar and a label for the description. But how can I make
> somthing while the dialog is visible so that I can show the progress
> to the user?
>
> Thanks for the help.
>
>
> 2007/3/2, Karl H. Beckers <karl h beckers gmx net>:
> > Am Freitag, den 02.03.2007, 11:33 -0500 schrieb
> > gtk-app-devel-list-request gnome org:
> > > > > > void
> > > > > > on_button1_clicked(GtkButton *button, gpointer data)
> > > > > > {
> > > > > >       /* the button was clicked */
> > > > > >       //Print out to console
> > > > > >       g_print("Beginn break\n");
> > > > > >
> > > > > >       //Create the new "progress" window
> > > > > >       GladeXML        *gxml_progress = NULL;
> > > > > >       gxml_progress = glade_xml_new (GLADE_FILE, "window2", NULL);
> > > > > >
> > > > > >       //show the window
> > > > > >       GtkWidget *window2 = glade_xml_get_widget(gxml_progress,
> > > "window2");
> > > > > >       gtk_widget_show_all(window2);
> > > > > >
> > > > > >       while (gtk_events_pending())
> > > > > >               gtk_main_iteration();
> > > > > >
> > > > > >       //Make 5 sec. break
> > > > > >       g_usleep(5000000);
> > > > > >       g_print("End break\n");
> > > > > > }
> >
> > Hi there,
> >
> > if I'm not completely mistaken here, this has nothing to do with glade.
> > The thing just is, that you need to return to the main loop from the
> > callback for the widgets to be drawn properly.
> > That is prolly why you put in your gtk_main_iteration though I doubt
> > there is a guaranteed way to make this work.
> >
> > So the complicated version would probably involve having hooking up a
> > callback to the configure event for the second window that starts smth.
> > and then automatically deregisters itself after the first run.
> >
> > The other thing I've found to work is use a GTK_DIALOG rather than a
> > generic window and then do smth. along the lines of:
> >
> >     result = gtk_dialog_run (GTK_DIALOG (dialog));
> >
> >     if (result == GTK_RESPONSE_OK) {
> >         got_file_name =
> >             gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
> >
> >         xml = NULL;
> >         xml = glade_get_widget_tree (GTK_WIDGET (xvc_pref_main_window));
> >         g_assert (xml);
> >
> >         w = NULL;
> >         w = glade_xml_get_widget (xml, "xvc_pref_sf_filename_entry");
> >         g_assert (w);
> >
> >         gtk_entry_set_text (GTK_ENTRY (w), strdup (got_file_name));
> >     }
> >
> >     gtk_widget_destroy (dialog);
> >
> > Of course, if you're not really interested in the user's input you can
> > just ignore the result.
> >
> > HTH,
> >
> > Karl.