G4OpenGLXm.cc

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// John Allison  16th July 2015
// Base class for OpenGLImmediate/StoredXm graphics system factories.

#ifdef G4VIS_BUILD_OPENGLXM_DRIVER

#include "G4OpenGLXm.hh"

#include "G4UImanager.hh"
#include "G4UIbatch.hh"

G4OpenGLXm::G4OpenGLXm (const G4String& name,
                        const G4String& nickname,
                        const G4String& description,
                        Functionality f):
G4VGraphicsSystem (name,
                   nickname,
                   description,
                   f)
{}

G4bool G4OpenGLXm::IsUISessionCompatible () const
{
  G4bool isCompatible = false;
  G4UImanager* ui = G4UImanager::GetUIpointer();
  G4UIsession* session = ui->GetSession();

  // If session is a batch session, it may be:
  // a) this is a batch job (the user has not instantiated any UI session);
  // b) we are currently processing a UI command, in which case the UI
  //    manager creates a temporary batch session and to find out if there is
  //    a genuine UI session that the user has instantiated we must drill
  //    down through previous sessions to a possible non-batch session.
  while (G4UIbatch* batch = dynamic_cast<G4UIbatch*>(session)) {
    session = batch->GetPreviousSession();
  }

  // Xm windows are not appropriate in a batch session.
  if (session) {
    // If non-zero, this is the originating non-batch session
    // The user has instantiated a UI session...
    isCompatible = true;
  }

  return isCompatible;
}

#endif