[gtk/wip/baedert/for-master] spinbutton: Fix adjustment value thinko

[Timm Bäder <baedert src gnome org>]

commit 48edd56543c77bc9065747a36bf344adcd729e5f
Author: Timm Bäder <mail baedert org>
Date:   Sun Oct 6 14:36:25 2019 +0200

    spinbutton: Fix adjustment value thinko
    
    Using ints here is wrong as it makes it impossible to e.g. edit a double
    in the [0; 1] range.

 gtk/gtkspinbutton.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index bae263878e..ce51cdb29d 100644
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -994,9 +994,9 @@ static void
 update_buttons_sensitivity (GtkSpinButton *spin_button)
 {
   GtkSpinButtonPrivate *priv = gtk_spin_button_get_instance_private (spin_button);
-  int lower = gtk_adjustment_get_lower (priv->adjustment);
-  int upper = gtk_adjustment_get_upper (priv->adjustment);
-  int value = gtk_adjustment_get_value (priv->adjustment);
+  const double lower = gtk_adjustment_get_lower (priv->adjustment);
+  const double upper = gtk_adjustment_get_upper (priv->adjustment);
+  const double value = gtk_adjustment_get_value (priv->adjustment);
 
   gtk_widget_set_sensitive (priv->up_button,
                             priv->wrap || upper - value > EPSILON);