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25 //
26 //
27 //
28 //
29 // Laurent Garnier 27th October 2011
30
31 #include "G4OpenGLStoredQtSceneHandler.hh"
32
33 #include "G4PhysicalVolumeModel.hh"
34 #include "G4LogicalVolumeModel.hh"
35 #include "G4Text.hh"
36 #include "G4VPhysicalVolume.hh"
37 #include "G4OpenGLQtViewer.hh"
38 #include <typeinfo>
39 #include <sstream>
40
41 G4OpenGLStoredQtSceneHandler::G4OpenGLStoredQtSceneHandler
42 (G4VGraphicsSystem& system,
43 const G4String& name):
44 G4OpenGLStoredSceneHandler (system, name)
45 {}
46
47 G4OpenGLStoredQtSceneHandler::~G4OpenGLStoredQtSceneHandler ()
48 {}
49
50 G4bool G4OpenGLStoredQtSceneHandler::ExtraPOProcessing
51 (const G4Visible& visible, size_t currentPOListIndex)
52 {
53 G4bool usesGLCommands = true;
54
55 try {
56 const G4Text& g4Text = dynamic_cast<const G4Text&>(visible);
57 G4TextPlus* pG4TextPlus = new G4TextPlus(g4Text);
58 pG4TextPlus->fProcessing2D = fProcessing2D;
59 fPOList[currentPOListIndex].fpG4TextPlus = pG4TextPlus;
60 usesGLCommands = false;
61 }
62 catch (const std::bad_cast&) {} // No special action if not text. Just carry on.
63
64 G4PhysicalVolumeModel* pPVModel =
65 dynamic_cast<G4PhysicalVolumeModel*>(fpModel);
66 G4LogicalVolumeModel* pLVModel =
67 dynamic_cast<G4LogicalVolumeModel*>(pPVModel);
68 if (pPVModel && !pLVModel) {
69
70 // This call comes from a G4PhysicalVolumeModel. drawnPVPath is
71 // the path of the current drawn (non-culled) volume in terms of
72 // drawn (non-culled) ancestors. Each node is identified by a
73 // PVNodeID object, which is a physical volume and copy number. It
74 // is a vector of PVNodeIDs corresponding to the geometry hierarchy
75 // actually selected, i.e., not culled.
76 // typedef G4PhysicalVolumeModel::G4PhysicalVolumeNodeID PVNodeID;
77 // typedef std::vector<PVNodeID> PVPath;
78
79 // The simplest algorithm, used by the Open Inventor Driver
80 // developers, is to rely on the fact the G4PhysicalVolumeModel
81 // traverses the geometry hierarchy in an orderly manner. The last
82 // mother, if any, will be the node to which the volume should be
83 // added. So it is enough to keep a map of scene graph nodes keyed
84 // on the volume path ID. Actually, it is enough to use the logical
85 // volume as the key. (An alternative would be to keep the PVNodeID
86 // in the tree and match the PVPath from the root down.)
87
88 // BUT IN OPENGL, IF THERE ARE TRANSPARENT OBJECTS, VOLUMES DO NOT
89 // ARRIVE IN THE ABOVE ORDER. (TRANSPARENT OBJECTS ARE DRWAN
90 // LAST.) SO WE MUST BE MORE SOPHISTICATED IN CONSTRUCTING A
91 // TREE.
92
93 // build a path for tree viewer
94 G4OpenGLQtViewer* pGLViewer = dynamic_cast<G4OpenGLQtViewer*>(fpViewer);
95 if ( pGLViewer ) {
96 pGLViewer->addPVSceneTreeElement(fpModel->GetCurrentDescription(),pPVModel,(G4int)currentPOListIndex);
97 }
98
99 } else { // Not from a G4PhysicalVolumeModel.
100
101 if (fpModel) {
102
103
104 // build a path for tree viewer
105 G4OpenGLQtViewer* pGLViewer = dynamic_cast<G4OpenGLQtViewer*>(fpViewer);
106 if ( pGLViewer ) {
107 pGLViewer->addNonPVSceneTreeElement(fpModel->GetType(),(G4int)currentPOListIndex,fpModel->GetCurrentDescription().data(),visible);
108 }
109 }
110 }
111
112 return usesGLCommands;
113 }
114
115 G4bool G4OpenGLStoredQtSceneHandler::ExtraTOProcessing
116 (const G4Visible& visible, size_t currentTOListIndex)
117 {
118
119 G4bool usesGLCommands = true;
120
121 try {
122 const G4Text& g4Text = dynamic_cast<const G4Text&>(visible);
123 G4TextPlus* pG4TextPlus = new G4TextPlus(g4Text);
124 pG4TextPlus->fProcessing2D = fProcessing2D;
125 fTOList[currentTOListIndex].fpG4TextPlus = pG4TextPlus;
126 usesGLCommands = false;
127 }
128 catch (const std::bad_cast&) {} // Do nothing if not text.
129
130 return usesGLCommands;
131 }
132
133 void G4OpenGLStoredQtSceneHandler::ClearStore () {
134
135 //G4cout << "G4OpenGLStoredQtSceneHandler::ClearStore" << G4endl;
136
137 G4OpenGLStoredSceneHandler::ClearStore ();
138
139 // Not needed - the old scene tree is currently (partially) disabled - but
140 // this code somehow affects the view in rare cases, e.g., after twinkling
141 // the volume does not return to its original colour. So I have disabled
142 // this, pending a review of the old scene tree. JA 31/10/24
143 // // Should recreate the tree
144 // G4OpenGLQtViewer* pGLQtViewer = dynamic_cast<G4OpenGLQtViewer*>(fpViewer);
145 // if ( pGLQtViewer ) {
146 // pGLQtViewer->clearTreeWidget();
147 // }
148 }
149
150 void G4OpenGLStoredQtSceneHandler::ClearTransientStore () {
151
152 //G4cout << "G4OpenGLStoredQtSceneHandler::ClearTransientStore" << G4endl;
153
154 G4OpenGLStoredSceneHandler::ClearTransientStore ();
155
156 // Should recreate the tree
157 // Make sure screen corresponds to graphical database...
158 // FIXME : L.Garnier April 2012 : Could cause a infinite loop ?
159 if (fpViewer) {
160 fpViewer -> SetView ();
161 fpViewer -> ClearView ();
162 fpViewer -> DrawView ();
163 }
164 }
165
166 void G4OpenGLStoredQtSceneHandler::SetScene(G4Scene* pScene){
167
168 if (pScene != fpScene) {
169 G4OpenGLQtViewer* pGLQtViewer = dynamic_cast<G4OpenGLQtViewer*>(fpViewer);
170 if ( pGLQtViewer ) {
171 pGLQtViewer->clearTreeWidget();
172 }
173 }
174 G4VSceneHandler::SetScene(pScene);
175 }
176