[gtk+] widget-factory: Better progressbar testing

[Matthias Clasen <matthiasc src gnome org>]

commit 23354ff6e756780ea295ae2a84c1dacbef1c68e7
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Nov 14 08:20:32 2016 -0500

    widget-factory: Better progressbar testing
    
    Hook the two top progressbars up to the scale with marks.
    Your turn, Lapo.

 demos/widget-factory/widget-factory.c  |   16 ++++++++++++++++
 demos/widget-factory/widget-factory.ui |    3 ++-
 2 files changed, 18 insertions(+), 1 deletions(-)
---
diff --git a/demos/widget-factory/widget-factory.c b/demos/widget-factory/widget-factory.c
index 3de5fb6..024874c 100644
--- a/demos/widget-factory/widget-factory.c
+++ b/demos/widget-factory/widget-factory.c
@@ -1590,6 +1590,16 @@ scale_format_value (GtkScale *scale, gdouble value)
 }
 
 static void
+adjustment3_value_changed (GtkAdjustment *adj, GtkProgressBar *pbar)
+{
+  double fraction;
+
+  fraction = gtk_adjustment_get_value (adj) / (gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower 
(adj));
+
+  gtk_progress_bar_set_fraction (pbar, fraction);
+}
+
+static void
 activate (GApplication *app)
 {
   GtkBuilder *builder;
@@ -1861,6 +1871,12 @@ activate (GApplication *app)
   widget2 = (GtkWidget *)gtk_builder_get_object (builder, "decrease_button");
   g_object_set_data (G_OBJECT (widget), "decrease_button", widget2);
 
+  adj = (GtkAdjustment *)gtk_builder_get_object (builder, "adjustment3");
+  widget = (GtkWidget *)gtk_builder_get_object (builder, "progressbar1");
+  widget2 = (GtkWidget *)gtk_builder_get_object (builder, "progressbar2");
+  g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget);
+  g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget2);
+
   gtk_widget_show_all (GTK_WIDGET (window));
 
   g_object_unref (builder);
diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index 5af53d6..ca1a61b 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -103,8 +103,9 @@
     <property name="page_increment">10</property>
   </object>
   <object class="GtkAdjustment" id="adjustment3">
+    <property name="lower">0</property>
     <property name="upper">4</property>
-    <property name="value">1</property>
+    <property name="value">2</property>
     <property name="step_increment">1</property>
     <property name="page_increment">1</property>
   </object>