G4OpenGLXViewer.hh

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// Andrew Walkden  7th February 1997
// G4OpenGLXViewer : Class to provide XWindows specific
//                   functionality for OpenGL in GEANT4
 
#ifndef G4OPENGLXVIEWER_HH
#define G4OPENGLXVIEWER_HH
 
#include "G4OpenGLViewer.hh"
#include "globals.hh"
 
#include <X11/Intrinsic.h>
 
#include "G4OpenGL.hh"
#include <GL/glx.h>
 
class G4OpenGLSceneHandler;
class G4Text;
 
class G4OpenGLXViewer: virtual public G4OpenGLViewer {
 
  friend class G4OpenGLXViewerMessenger;
  friend class G4OpenGLXmViewer;
 
public:
  G4OpenGLXViewer (G4OpenGLSceneHandler& scene);
  virtual ~G4OpenGLXViewer ();
  void SetView ();
  void ShowView ();
#ifdef G4MULTITHREADED
  void SwitchToVisSubThread();
  void SwitchToMasterThread();
#endif
  void DrawText(const G4Text&);
 
protected:
  void GetXConnection ();
  void CreateGLXContext (XVisualInfo* vi);
  virtual void CreateMainWindow ();
  virtual void CreateFontLists ();
 
  static int snglBuf_RGBA[12];
  static int dblBuf_RGBA[13];
 
//////////////////////////////Pixmap (screen dump) production functions/////
 
  XWindowAttributes                 xwa;
  Display                           *dpy;
  static XVisualInfo                *vi_single_buffer;
  static XVisualInfo                *vi_double_buffer;
  XVisualInfo                       *vi_immediate,
                                    *vi_stored,
                                    *vi;
  Colormap                          cmap;
  XSetWindowAttributes              swa;
  GLXDrawable                       win;
  GLXContext                        cxMaster;
#ifdef G4MULTITHREADED
  GLXContext                        cxVisSubThread;
#endif
  XEvent                            event;
  G4int                             *attributeList,
                                    errorBase,
                                    eventBase,
                                    major,
                                    minor;
  XSizeHints                        *norm_hints;
  XWMHints                          *wm_hints;
  XClassHint                        *class_hints;
  Pixmap                            icon_pixmap;
  XSizeHints                        *size_hints;
  Atom                              Xatom;
  XTextProperty                     windowName,
                                    iconName;
  char                              charViewName [100];
 
 
private:
  G4OpenGLXViewer (const G4OpenGLXViewer&);
  G4OpenGLXViewer& operator = (const G4OpenGLXViewer&);
  GLXContext                        tmp_cx;
};
 
#endif