Added GLUT based osgsimpleviewerGLUT example

examples/osgsimpleviewerGLUT/GNUmakefile

@@ -0,0 +1,18 @@
+TOPDIR = ../..
+include $(TOPDIR)/Make/makedefs
+
+CXXFILES =\
+	osgsimpleviewerGLUT.cpp\
+
+LIBS     += -losgGA -losgDB -losgUtil -losg $(GLUT_LIBS) $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
+
+INSTFILES = \
+	$(CXXFILES)\
+	GNUmakefile.inst=GNUmakefile
+
+EXEC = osgsimpleviewerGLUT
+
+INC      += $(X_INC) 
+LDFLAGS  += -L/usr/X11R6/lib
+
+include $(TOPDIR)/Make/makerules 

examples/osgsimpleviewerGLUT/GNUmakefile.inst

@@ -0,0 +1,14 @@
+TOPDIR = ../..
+include $(TOPDIR)/Make/makedefs
+
+CXXFILES =\
+	osgsimpleviewerGLUT.cpp\
+
+LIBS     += -losgGA -losgDB -losgUtil -losg -lglut $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS) 
+
+EXEC = osgsimpleviewerGLUT
+
+INC += $(X_INC)
+LDFLAGS  += 
+
+include $(TOPDIR)/Make/makerules

examples/osgsimpleviewerGLUT/osgsimpleviewerGLUT.cpp

@@ -0,0 +1,100 @@
+// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
+// (C) 2005 Mike Weiblen http://mew.cx/ released under the OSGPL.
+// Simple example using GLUT to create an OpenGL window and OSG for rendering.
+// Derived from osgGLUTsimple.cpp and osgkeyboardmouse.cpp
+
+#include <iostream>
+#ifdef WIN32
+#include <windows.h>
+#endif
+#ifdef __APPLE__
+#  include <GLUT/glut.h>
+#else
+#  include <GL/glut.h>
+#endif
+
+#include <osgGA/SimpleViewer>
+#include <osgGA/TrackballManipulator>
+#include <osgDB/ReadFile>
+
+osg::ref_ptr<osgGA::SimpleViewer> viewer;
+
+void display(void)
+{
+    // update and render the scene graph
+    viewer->frame();
+
+    // Swap Buffers
+    glutSwapBuffers();
+    glutPostRedisplay();
+}
+
+void reshape( int w, int h )
+{
+    // update the window dimensions, in case the window has been resized.
+    viewer->getEventQueue()->windowResize(0, 0, w, h );
+}
+
+void mousebutton( int button, int state, int x, int y )
+{
+    if (state==0) viewer->getEventQueue()->mouseButtonPress( x, y, button+1 );
+    else viewer->getEventQueue()->mouseButtonRelease( x, y, button+1 );
+}
+
+void mousemove( int x, int y )
+{
+    viewer->getEventQueue()->mouseMotion( x, y );
+}
+
+void keyboard( unsigned char key, int /*x*/, int /*y*/ )
+{
+    switch( key )
+    {
+        case 27:
+            glutDestroyWindow(glutGetWindow());
+            break;
+        default:
+            viewer->getEventQueue()->keyPress( (osgGA::GUIEventAdapter::KeySymbol) key );
+            viewer->getEventQueue()->keyRelease( (osgGA::GUIEventAdapter::KeySymbol) key );
+            break;
+    }
+}
+
+int main( int argc, char **argv )
+{
+    glutInit(&argc, argv);
+
+    if (argc<2)
+    {
+        std::cout << argv[0] <<": requires filename argument." << std::endl;
+        return 1;
+    }
+
+    // load the scene.
+    osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
+    if (!loadedModel)
+    {
+        std::cout << argv[0] <<": No data loaded." << std::endl;
+        return 1;
+    }
+
+    glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_ALPHA );
+    glutInitWindowPosition( 100, 100 );
+    glutInitWindowSize( 800, 600 );
+    glutCreateWindow( argv[0] );
+    glutDisplayFunc( display );
+    glutReshapeFunc( reshape );
+    glutMouseFunc( mousebutton );
+    glutMotionFunc( mousemove );
+    glutKeyboardFunc( keyboard );
+
+    // create the view of the scene.
+    viewer = new osgGA::SimpleViewer;
+    viewer->setSceneData(loadedModel.get());
+    viewer->setCameraManipulator(new osgGA::TrackballManipulator);
+
+    glutMainLoop();
+    return 0;
+}
+
+/*EOF*/