| Geant4 Cross Reference |
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25 //
26 // Guy Barrand 14th April 2023
27
28 #include "G4ToolsSGXtZB.hh"
29
30 #include "G4ToolsSGViewer.hh"
31 #include "G4Xt.hh"
32
33 #include <toolx/Xt/zb_viewer>
34
35 class session : public toolx::Xt::session {
36 using parent = toolx::Xt::session;
37 public:
38 session(std::ostream& a_out)
39 :parent(a_out)
40 {
41 m_app_widget = (Widget)G4Xt::getInstance()->GetMainInteractor();
42 m_app_context = ::XtWidgetToApplicationContext(m_app_widget);
43 m_app_owner = false;
44 }
45 virtual ~session() {}
46 protected:
47 session(const session& a_from):parent(a_from){}
48 session& operator=(const session& a_from){parent::operator=(a_from);return *this;}
49 };
50
51 G4ToolsSGXtZB::G4ToolsSGXtZB():
52 parent
53 ("TOOLSSG_XT_ZB",
54 "TSG_XT_ZB",
55 "TOOLSSG_XT_ZB is a graphics driver based on the g4tools tools/sg scene graph logic where\n\
56 the rendering is done with the g4tools zbuffer and the windowing is done with the Xt toolkit.",
57 parent::threeDInteractive)
58 ,fSGSession(nullptr)
59 {}
60
61 G4ToolsSGXtZB::~G4ToolsSGXtZB() {
62 delete fSGSession;
63 }
64
65 void G4ToolsSGXtZB::Initialise() {
66 if(fSGSession) return; //done.
67 fSGSession = new session(G4cout);
68 if(!fSGSession->is_valid()) {
69 G4cerr << "G4ToolsSGXtZB::Initialise : session::is_valid() failed." << G4endl;
70 delete fSGSession;
71 fSGSession = nullptr;
72 return;
73 }
74 }
75
76 G4VSceneHandler* G4ToolsSGXtZB::CreateSceneHandler(const G4String& a_name) {
77 G4VSceneHandler* pScene = new G4ToolsSGSceneHandler(*this, a_name);
78 return pScene;
79 }
80
81 G4VViewer* G4ToolsSGXtZB::CreateViewer(G4VSceneHandler& a_scene,const G4String& a_name) {
82 if(!fSGSession) Initialise();
83 if(!fSGSession) return nullptr;
84 G4VViewer* pView =
85 new G4ToolsSGViewer<toolx::Xt::session,toolx::Xt::zb_viewer>(*fSGSession,(G4ToolsSGSceneHandler&)a_scene,a_name);
86 if (pView) {
87 if (pView->GetViewId() < 0) {
88 G4cerr <<
89 "G4ToolsSGXtZB::CreateViewer: ERROR flagged by negative"
90 " view id in G4ToolsSGViewer creation."
91 "\n Destroying view and returning null pointer."
92 << G4endl;
93 delete pView;
94 pView = nullptr;
95 }
96 }
97 if (!pView) {
98 G4cerr <<
99 "G4ToolsSGXtZB::CreateViewer: ERROR: null pointer on new G4ToolsSGViewer."
100 << G4endl;
101 }
102 return pView;
103 }
104