[gtk+] inspector: Don't lie with statistics

[Matthias Clasen <matthiasc src gnome org>]

commit 8a2061f581d3dcb3928ccd5aeac77f6127c52cf4
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Apr 14 22:52:59 2016 -0400

    inspector: Don't lie with statistics
    
    If we don't have statistics, despite GOBJECT_DEBUG being set,
    explain how to fix this.

 gtk/inspector/statistics.c  |   11 +++++++++++
 gtk/inspector/statistics.ui |    2 +-
 2 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/gtk/inspector/statistics.c b/gtk/inspector/statistics.c
index fe33d18..42b315c 100644
--- a/gtk/inspector/statistics.c
+++ b/gtk/inspector/statistics.c
@@ -26,6 +26,7 @@
 #include "gtkcellrenderertext.h"
 #include "gtkcelllayout.h"
 #include "gtksearchbar.h"
+#include "gtklabel.h"
 
 enum
 {
@@ -36,6 +37,7 @@ enum
 struct _GtkInspectorStatisticsPrivate
 {
   GtkWidget *stack;
+  GtkWidget *excuse;
   GtkTreeModel *model;
   GtkTreeView  *view;
   GtkWidget *button;
@@ -169,6 +171,12 @@ toggle_record (GtkToggleButton        *button,
 static gboolean
 has_instance_counts (void)
 {
+  return g_type_get_instance_count (GTK_TYPE_LABEL) > 0;
+}
+
+static gboolean
+instance_counts_enabled (void)
+{
   const gchar *string;
   guint flags = 0;
 
@@ -365,6 +373,8 @@ constructed (GObject *object)
     update_type_counts (sl);
   else
     {
+      if (instance_counts_enabled ())
+        gtk_label_set_text (GTK_LABEL (sl->priv->excuse), _("GLib must be configured with --enable-debug"));
       gtk_stack_set_visible_child_name (GTK_STACK (sl->priv->stack), "excuse");
       gtk_widget_set_sensitive (sl->priv->button, FALSE);
     }
@@ -452,6 +462,7 @@ gtk_inspector_statistics_class_init (GtkInspectorStatisticsClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorStatistics, renderer_cumulative2);
   gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorStatistics, search_entry);
   gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorStatistics, search_bar);
+  gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorStatistics, excuse);
 
 }
 
diff --git a/gtk/inspector/statistics.ui b/gtk/inspector/statistics.ui
index 82672db..b1ceefc 100644
--- a/gtk/inspector/statistics.ui
+++ b/gtk/inspector/statistics.ui
@@ -159,7 +159,7 @@
             <property name="halign">center</property>
             <property name="valign">center</property>
             <child>
-              <object class="GtkLabel">
+              <object class="GtkLabel" id="excuse">
                 <property name="visible">True</property>
                 <property name="selectable">True</property>
                 <property name="label" translatable="yes">Enable statistics with 
GOBJECT_DEBUG=instance-count</property>