From 46e8c6561220f40fc2721cc6f3b2ab893047b264 Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Sun, 20 Oct 2013 09:44:38 +0100
Subject: [PATCH] Expose OSG notify severity at runtime.

Define a new property /sim/rendering/osg-notify-level and listen
to it, so we can update the notification level at run time.
---
 src/Viewer/fg_os_osgviewer.cxx | 36 ++++++++++++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

diff --git a/src/Viewer/fg_os_osgviewer.cxx b/src/Viewer/fg_os_osgviewer.cxx
index 9a73847dc..e48e940c2 100644
--- a/src/Viewer/fg_os_osgviewer.cxx
+++ b/src/Viewer/fg_os_osgviewer.cxx
@@ -29,6 +29,8 @@
 
 #include <stdlib.h>
 
+// Boost
+#include <boost/algorithm/string/case_conv.hpp>
 #include <boost/foreach.hpp>
 
 #include <simgear/compiler.h>
@@ -217,11 +219,41 @@ private:
   }
 };
 
+class NotifyLevelListener : public SGPropertyChangeListener
+{
+public:
+    void valueChanged(SGPropertyNode* node)
+    {
+        osg::NotifySeverity severity = osg::WARN;
+        string val = boost::to_lower_copy(string(node->getStringValue()));
+        
+        if (val == "fatal") {
+            severity = osg::FATAL;
+        } else if (val == "warn") {
+            severity = osg::WARN;
+        } else if (val == "notice") {
+            severity = osg::NOTICE;
+        } else if (val == "info") {
+            severity = osg::INFO;
+        } else if ((val == "debug") || (val == "debug-info")) {
+            severity = osg::DEBUG_INFO;
+        }
+        
+        osg::setNotifyLevel(severity);
+    }
+};
+
+void updateOSGNotifyLevel()
+{
+   }
+
 void fgOSOpenWindow(bool stencil)
 {
     osg::setNotifyHandler(new NotifyLogger);
-    //osg::setNotifyLevel(osg::DEBUG_INFO);
-  
+    
+    SGPropertyNode* osgLevel = fgGetNode("/sim/rendering/osg-notify-level", true);
+    osgLevel->addChangeListener(new NotifyLevelListener, true);
+    
     viewer = new osgViewer::Viewer;
     viewer->setDatabasePager(FGScenery::getPagerSingleton());
     CameraGroup* cameraGroup = 0;
-- 
2.39.5