[gtk+/gtk-3-20] gtk-demo: Make the scale demo fully functional

[Matthias Clasen <matthiasc src gnome org>]

commit 720988d962b31ab1189fe6795e5084f7470f8143
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Aug 24 11:11:57 2016 -0400

    gtk-demo: Make the scale demo fully functional
    
    The adjustments need to have step-increment and page-increment
    set up, or keynav and autoscrolling will not work.

 demos/gtk-demo/scale.ui |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/demos/gtk-demo/scale.ui b/demos/gtk-demo/scale.ui
index a23d3b6..198fa09 100644
--- a/demos/gtk-demo/scale.ui
+++ b/demos/gtk-demo/scale.ui
@@ -4,14 +4,20 @@
   <object class="GtkAdjustment" id="adjustment1">
     <property name="upper">4</property>
     <property name="value">2</property>
+    <property name="step-increment">0.1</property>
+    <property name="page-increment">1</property>
   </object>
   <object class="GtkAdjustment" id="adjustment2">
     <property name="upper">4</property>
     <property name="value">2</property>
+    <property name="step-increment">0.1</property>
+    <property name="page-increment">1</property>
   </object>
   <object class="GtkAdjustment" id="adjustment3">
     <property name="upper">4</property>
     <property name="value">2</property>
+    <property name="step-increment">0.1</property>
+    <property name="page-increment">1</property>
   </object>
   <object class="GtkWindow" id="window1">
     <property name="title" translatable="yes">Scales</property>