| Geant4 Cross Reference |
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24 // ********************************************************************
25 //
26 // Guy Barrand 13th April 2023
27
28 #include "G4ToolsSGQtZB.hh"
29
30 #include "G4ToolsSGQtZBViewer.hh"
31
32 #include "G4Qt.hh"
33
34 #include "G4UIbatch.hh"
35
36 G4ToolsSGQtZB::G4ToolsSGQtZB():
37 parent
38 ("TOOLSSG_QT_ZB",
39 "TSG_QT_ZB",
40 "TOOLSSG_QT_ZB is a graphics driver based on the g4tools tools/sg scene graph logic where\n\
41 the rendering is done with the g4tools zbuffer and the windowing is done with Qt.",
42 parent::threeDInteractive)
43 ,fSGSession(nullptr)
44 {}
45
46 G4ToolsSGQtZB::~G4ToolsSGQtZB() {
47 delete fSGSession;
48 }
49
50 void G4ToolsSGQtZB::Initialise() {
51 if(fSGSession) return; //done.
52 G4Qt* interactorManager = G4Qt::getInstance();
53 QApplication* _qapp = (QApplication*)interactorManager->GetMainInteractor();
54 if(!_qapp) {
55 G4cerr << "G4ToolsSGQtZB::Initialise : G4Qt::GetMainInteractor() returns null." << G4endl;
56 return;
57 }
58 fSGSession = new toolx::Qt::session(G4cout,_qapp);
59 if(!fSGSession->is_valid()) {
60 G4cerr << "G4ToolsSGQtZB::Initialise : session::is_valid() failed." << G4endl;
61 delete fSGSession;
62 fSGSession = nullptr;
63 return;
64 }
65 }
66
67 G4VSceneHandler* G4ToolsSGQtZB::CreateSceneHandler(const G4String& a_name) {
68 G4VSceneHandler* pScene = new G4ToolsSGSceneHandler(*this, a_name);
69 return pScene;
70 }
71
72 G4VViewer* G4ToolsSGQtZB::CreateViewer(G4VSceneHandler& a_scene,const G4String& a_name) {
73 if(!fSGSession) Initialise();
74 if(!fSGSession) return nullptr;
75 G4VViewer* pView = new G4ToolsSGQtZBViewer(*fSGSession,(G4ToolsSGSceneHandler&)a_scene,a_name);
76 if (pView) {
77 if (pView->GetViewId() < 0) {
78 G4cerr << "G4ToolsSGQtZB::CreateViewer:"
79 << " ERROR flagged by negative view id in G4ToolsSGViewer creation."
80 << "\n Destroying view and returning null pointer." << G4endl;
81 delete pView;
82 pView = nullptr;
83 }
84 }
85 if (!pView) {
86 G4cerr << "G4ToolsSGQtZB::CreateViewer: ERROR: null pointer on new G4ToolsSGViewer." << G4endl;
87 return nullptr;
88 }
89 return pView;
90 }
91
92 G4bool G4ToolsSGQtZB::IsUISessionCompatible () const
93 {
94 // Qt windows require a Qt session.
95 G4UIsession* baseSession = G4UImanager::GetUIpointer()->GetBaseSession();
96 if (dynamic_cast<G4UIQt*>(baseSession) != nullptr) return true;
97 return false;
98 }
99