Added new osgGLUT::Window base class which is very basic right now, all it does

is bring up a GLUT window and provide virtual functions from which users should
subclass to add functionality.

src/osgGLUT/Window.cpp

@@ -0,0 +1,187 @@
+#if defined(_MSC_VER)
+    #pragma warning( disable : 4786 )
+#endif
+
+#include <stdio.h>
+#include <string>
+
+#include <osg/Notify>
+
+#include <osgGLUT/glut>
+#include <osgGLUT/Window>
+
+#include <osg/Timer>
+
+using namespace osgGLUT;
+
+GLUTWindow* GLUTWindow::s_theGLUTWindow = 0;
+
+GLUTWindow::GLUTWindow()
+{
+    s_theGLUTWindow = this;
+
+    _fullscreen = false; 
+    _is_open   = 0;
+    _saved_wx = _wx = _saved_wy = _wy = 0;
+    _saved_ww = _ww = 800,
+    _saved_wh = _wh = 600;
+
+    _title = "OSG Window";
+    
+    _displayMode = GLUT_DOUBLE| GLUT_RGB | GLUT_DEPTH;
+
+    _mx = _ww/2,
+    _my = _wh/2;
+    _mbutton = 0;    
+}
+
+
+GLUTWindow::~GLUTWindow()
+{
+}
+
+
+/**
+  * Configure and open the GLUT window for this GLUTWindow
+  * 
+  */
+bool GLUTWindow::open()
+{
+    if ( _is_open ) {
+        osg::notify(osg::NOTICE)<<"osgGLUT::GLUTWindow::open() called with window already open."<<endl;
+        return false;
+    }
+
+    //glutInit( &argc, argv );    // I moved this into main to avoid passing
+    // argc and argv to the GLUTWindow
+    glutInitWindowPosition( _wx, _wy );
+    glutInitWindowSize( _ww, _wh );
+
+    glutInitDisplayMode( _displayMode);
+    
+    glutCreateWindow( _title.c_str() );
+
+    glutReshapeFunc(    reshapeCB );
+    glutVisibilityFunc( visibilityCB );
+    glutDisplayFunc(    displayCB );
+    glutKeyboardFunc(   keyboardCB );
+
+    glutMouseFunc( mouseCB );
+    glutMotionFunc( mouseMotionCB );
+    glutPassiveMotionFunc( mousePassiveMotionCB );
+
+    _is_open = 1;
+    return true;
+}
+
+void GLUTWindow::displayCB()
+{
+    s_theGLUTWindow->display();
+}
+
+
+//void GLUTWindow::reshapeCB(GLint w, GLint h)
+void GLUTWindow::reshapeCB(int w, int h)
+{
+    s_theGLUTWindow->reshape(w, h);
+}
+
+
+void GLUTWindow::visibilityCB( int state )
+{
+    s_theGLUTWindow->visibility(state);
+}
+
+
+void GLUTWindow::mouseCB(int button, int state, int x, int y)
+{
+    s_theGLUTWindow->mouse(button, state, x, y);
+}
+
+
+void GLUTWindow::mouseMotionCB(int x, int y)
+{
+    s_theGLUTWindow->mouseMotion(x,y);
+}
+
+
+void GLUTWindow::mousePassiveMotionCB(int x, int y)
+{
+    s_theGLUTWindow->mousePassiveMotion(x,y);
+}
+
+
+void GLUTWindow::keyboardCB(unsigned char key, int x, int y)
+{
+    s_theGLUTWindow->keyboard(key,x,y);
+}
+
+
+void GLUTWindow::display()
+{
+}
+
+
+void GLUTWindow::reshape(GLint w, GLint h)
+{
+    _ww = w;
+    _wh = h;
+}
+
+
+void GLUTWindow::visibility(int state)
+{
+    if (state == GLUT_VISIBLE)
+        glutIdleFunc( displayCB );
+    else
+        glutIdleFunc(0L);
+}
+
+
+void GLUTWindow::mouseMotion(int x, int y)
+{
+}
+
+
+void GLUTWindow::mousePassiveMotion(int x, int y)
+{
+}
+
+
+void GLUTWindow::mouse(int button, int state, int x, int y)
+{
+}
+
+
+void GLUTWindow::keyboard(unsigned char key, int x, int y)
+{
+    switch( key )
+    {
+        case 'f' :
+            _fullscreen = !_fullscreen;
+            if (_fullscreen)
+            {
+                _saved_ww = _ww;
+                _saved_wh = _wh;
+                glutFullScreen();
+            } else
+            {
+                //glutPositionWindow(wx,wy);
+                glutReshapeWindow(_saved_ww,_saved_wh);
+            }
+            break;
+    }
+}
+
+bool GLUTWindow::run()
+{
+    if (!_is_open) {
+        osg::notify(osg::NOTICE)<<"osgGLUT::GLUTWindow::run() called without window open.  Opening window."<<endl;
+        if ( !open() )
+            return false;
+    }
+
+    glutMainLoop();
+
+    return true;
+}