Geant4_10
G4OpenGLQt.cc
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27 // $Id:$
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29 // John Allison 27th October 2012
30 // Base class for OpenGLImmediate/StoredQt graphics system factories.
31 
32 #ifdef G4VIS_BUILD_OPENGLQT_DRIVER
33 
34 #include "G4OpenGLQt.hh"
35 
36 #include "G4UIQt.hh"
37 #include "G4UImanager.hh"
38 #include "G4UIbatch.hh"
39 
41  const G4String& nickname,
42  const G4String& description,
43  Functionality f):
44 G4VGraphicsSystem (name,
45  nickname,
46  description,
47  f)
48 {}
49 
51 {
52  G4bool isCompatible = false;
54  G4UIsession* session = ui->GetSession();
55  // In case it's a G4UIbatch, find original session by recursive search until
56  // the session is no longer a G4UIbatch, in which case it will be the
57  // original session, if any.
58  while (G4UIbatch* batch = dynamic_cast<G4UIbatch*>(session)) {
59  session = batch->GetPreviousSession();
60  }
61  if (!session) {
62  // The user has not instantiated a session - must be batch.
63  // It's OK to have a Qt window in batch - you can open a viewer, create a
64  // scene, set view parameters and /vis/ogl/printEPS.
65  isCompatible = true;
66  } else {
67  // The user has instantiated a session...
68  if (dynamic_cast<G4UIQt*>(session)) {
69  // ...and it's a G4UIQt session, which is OK.
70  isCompatible = true;
71  } else {
72  // Not OK - go and find the fallback graphics system.
73  isCompatible = false;
74  }
75  }
76  return isCompatible;
77 }
78 
79 #endif
G4UIsession * GetSession() const
Definition: G4UImanager.hh:208
G4bool IsUISessionCompatible() const
const XML_Char * name
Definition: expat.h:151
TFile f
Definition: plotHisto.C:6
static G4UImanager * GetUIpointer()
Definition: G4UImanager.cc:58
bool G4bool
Definition: G4Types.hh:79
G4OpenGLQt(const G4String &name, const G4String &nickname, const G4String &description, Functionality f)