[gtk+] GtkLayout: Use G_PARAM_EXPLICIT_NOTIFY

[Matthias Clasen <matthiasc src gnome org>]

commit 46828a41b020d59eb764b53df47c81423f8bdc24
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 9 09:00:27 2014 -0400

    GtkLayout: Use G_PARAM_EXPLICIT_NOTIFY

 gtk/gtklayout.c |   26 ++++++++++++++++----------
 1 files changed, 16 insertions(+), 10 deletions(-)
---
diff --git a/gtk/gtklayout.c b/gtk/gtklayout.c
index 30e551a..dd8f68e 100644
--- a/gtk/gtklayout.c
+++ b/gtk/gtklayout.c
@@ -675,7 +675,7 @@ gtk_layout_class_init (GtkLayoutClass *class)
                                                     0,
                                                     G_MAXINT,
                                                     100,
-                                                    GTK_PARAM_READWRITE));
+                                                    GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   g_object_class_install_property (gobject_class,
                                   PROP_HEIGHT,
                                   g_param_spec_uint ("height",
@@ -684,7 +684,7 @@ gtk_layout_class_init (GtkLayoutClass *class)
                                                     0,
                                                     G_MAXINT,
                                                     100,
-                                                    GTK_PARAM_READWRITE));
+                                                    GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
   widget_class->realize = gtk_layout_realize;
   widget_class->unrealize = gtk_layout_unrealize;
   widget_class->map = gtk_layout_map;
@@ -752,20 +752,26 @@ gtk_layout_set_property (GObject      *object,
       gtk_layout_do_set_vadjustment (layout, g_value_get_object (value));
       break;
     case PROP_HSCROLL_POLICY:
-      priv->hscroll_policy = g_value_get_enum (value);
-      gtk_widget_queue_resize (GTK_WIDGET (layout));
+      if (priv->hscroll_policy != g_value_get_enum (value))
+        {
+          priv->hscroll_policy = g_value_get_enum (value);
+          gtk_widget_queue_resize (GTK_WIDGET (layout));
+          g_object_notify_by_pspec (object, pspec);
+        }
       break;
     case PROP_VSCROLL_POLICY:
-      priv->vscroll_policy = g_value_get_enum (value);
-      gtk_widget_queue_resize (GTK_WIDGET (layout));
+      if (priv->vscroll_policy != g_value_get_enum (value))
+        {
+          priv->vscroll_policy = g_value_get_enum (value);
+          gtk_widget_queue_resize (GTK_WIDGET (layout));
+          g_object_notify_by_pspec (object, pspec);
+        }
       break;
     case PROP_WIDTH:
-      gtk_layout_set_size (layout, g_value_get_uint (value),
-                          priv->height);
+      gtk_layout_set_size (layout, g_value_get_uint (value), priv->height);
       break;
     case PROP_HEIGHT:
-      gtk_layout_set_size (layout, priv->width,
-                          g_value_get_uint (value));
+      gtk_layout_set_size (layout, priv->width, g_value_get_uint (value));
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);