From Cedric Pinson and Jeremey Moles, Changes to OpenSceneGraph-osgWidget-dev branch.

Notes from Robert Osfield, Merged changes to OpenSceneGraph-osgWidget-dev r9367 (prior to my botched attempt at merged svn/trunk into the branch).

include/osgAnimation/BasicAnimationManager

@@ -0,0 +1,53 @@
+/*  -*-c++-*- 
+ *  Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * OpenSceneGraph Public License for more details.
+*/
+
+#ifndef OSGANIMATION_BASIC_ANIMATION_MANAGER_H
+#define OSGANIMATION_BASIC_ANIMATION_MANAGER_H
+
+#include <osg/Group>
+#include <osgAnimation/AnimationManagerBase>
+#include <osgAnimation/Export>
+#include <osg/FrameStamp>
+
+namespace osgAnimation
+{
+    class OSGANIMATION_EXPORT BasicAnimationManager : public AnimationManagerBase
+    {
+    public:
+
+        META_Object(osgAnimation, BasicAnimationManager);
+  
+        BasicAnimationManager();
+        BasicAnimationManager(const AnimationManagerBase& b, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY) : AnimationManagerBase(b,copyop) {}
+        virtual ~BasicAnimationManager();
+
+        void update (double time);
+
+        void playAnimation (Animation* pAnimation, int priority = 0, float weight = 1.0);
+        bool stopAnimation (Animation* pAnimation);
+
+        bool findAnimation (Animation* pAnimation);
+        bool isPlaying (Animation* pAnimation);
+        bool isPlaying (const std::string& animationName);
+
+        void stopAll();
+    
+    protected:
+        typedef std::map<int, AnimationList > AnimationLayers;
+        AnimationLayers _animationsPlaying;
+        double _lastUpdate;
+    };
+
+}
+#endif