Re: [Vala] Stop Gtk.Spinner?

["webierta gmail com" <webierta gmail com>]

Thanks, sometimes I get stuck in the most elementary (but I'm still
learning)

El 16/01/17 a las 13:02, Al Thomas escribió:
> ----- Original Message -----
>
> > From: "webierta gmail com" <webierta gmail com>
> > Sent: Monday, 16 January 2017, 11:35
> > Subject: [Vala] Stop Gtk.Spinner?
> > how can I stop this widget in Genie when I press a key?
>
> You've not fully understood the concept of scope.
> In your constructor, the line:
>
> var spinner = new Gtk.Spinner()
>
> creates a new variable, spinner, in the scope of your constructor.
> Remove the 'var' keyword and it will work. It will use the spinner
> variable declared in the scope of the class and so it will be available
> in your 'tecla' class method.
>
> I've also added the underscore to make the variable private, so it is
> only visible in the scope of the class and not to any part of the program
> that instantiates the class.
>
>
> // compila con valac --pkg gtk+-3.0 nombre_archivo.gs
> [indent=4]
> uses Gtk
>
> init
>     Gtk.init( ref args )
>     var test = new TestVentana()
>     test.show_all()
>         Gtk.main()
>
> class TestVentana:Window
>
>         _spinner: Gtk.Spinner
>
>     construct()
>         title = "Ejemplo Gtk"
>         default_height = 300
>         default_width = 300
>         border_width = 50
>         window_position = WindowPosition.CENTER
>         destroy.connect( Gtk.main_quit )
>
>         _spinner = new Gtk.Spinner()
>         _spinner.active = true
>         add( _spinner )
>
>         key_press_event.connect( tecla )
>
>     def tecla( key:Gdk.EventKey ):bool
>         _spinner.active = false
>         return true