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+// Copyright (C) 2017 James Turner
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program 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 GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+#ifndef PUICAMERA_HXX
+#define PUICAMERA_HXX
+
+#include <osg/Camera>
+#include <osg/Version>
+#include <osgViewer/View>
+
+namespace osg
+{
+    class Texture2D;
+    class Geometry;
+}
+
+namespace osgViewer {
+class Viewer;
+}
+
+namespace osgGA {
+class GUIEventHandler;
+}
+
+namespace flightgear
+{
+
+class PUICamera : public osg::Camera
+{
+public:
+    static void initPUI();
+    
+    PUICamera();
+    virtual ~PUICamera();
+
+    osg::Object* cloneType() const override { return new PUICamera; }
+    osg::Object* clone(const osg::CopyOp&) const override { return new PUICamera; }
+
+    // osg::Camera already defines a resize() so use this name
+    void resizeUi(int width, int height);
+
+    void init(osg::Group* parent, osgViewer::View* view);
+
+private:
+    void manuallyResizeFBO(int width, int height);
+
+    osg::Texture2D* _fboTexture = nullptr;
+    osg::Geometry* _fullScreenQuad = nullptr;
+    osgGA::GUIEventHandler* _eventHandler = nullptr;
+
+    static void puGetWindowSize(int *width, int *height);
+    static int puGetWindow();
+};
+
+} // of namespace flightgear
+
+#endif // PUICAMERA_HXX