| Geant4 Cross Reference |
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25 //
26 // Created by Stewart Boogert on 05/03/2023.
27 //
28
29 #include "G4VtkText2DPipeline.hh"
30
31 #include "G4Text.hh"
32 #include "G4VisAttributes.hh"
33 #include "G4VtkViewer.hh"
34
35 #include <vtkTextActor.h>
36 #include <vtkTextProperty.h>
37
38 std::size_t G4VtkText2DPipeline::MakeHash(const G4Text& text, const G4VtkVisContext& /*vc*/,
39 const G4VisAttributes* pVA)
40 {
41 std::size_t hash = std::hash<G4VisAttributes>{}(*pVA);
42
43 G4double x = text.GetPosition().x();
44 G4double y = text.GetPosition().y();
45
46 std::hash_combine(hash, std::hash<G4String>{}(text.GetText()));
47 std::hash_combine(hash, std::hash<G4double>{}(x));
48 std::hash_combine(hash, std::hash<G4double>{}(y));
49
50 return hash;
51 }
52
53 G4VtkText2DPipeline::G4VtkText2DPipeline(const G4Text& text, const G4VtkVisContext& vcIn,
54 const G4VisAttributes* pVA)
55 : G4VVtkPipeline(text.GetText().c_str(), "G4VtkText2DPipeline", vcIn, false, vcIn.fViewer->renderer)
56 {
57 G4double x = text.GetPosition().x();
58 G4double y = text.GetPosition().y();
59
60 G4Color colour = pVA->GetColour();
61 G4double opacity = colour.GetAlpha();
62
63 actor = vtkSmartPointer<vtkTextActor>::New();
64 actor->SetInput(text.GetText().c_str());
65 actor->GetPositionCoordinate()->SetCoordinateSystemToNormalizedViewport();
66 // actor->SetTextScaleModeToViewport();
67 actor->SetPosition((x + 1.) / 2.0, (y + 1.) / 2.);
68 actor->GetTextProperty()->SetFontSize(text.GetScreenSize());
69 actor->GetTextProperty()->SetColor(colour.GetRed(), colour.GetGreen(), colour.GetBlue());
70 actor->GetTextProperty()->SetOpacity(opacity);
71
72 switch (text.GetLayout()) {
73 case G4Text::Layout::left:
74 actor->GetTextProperty()->SetJustificationToLeft();
75 break;
76 case G4Text::Layout::centre:
77 actor->GetTextProperty()->SetJustificationToCentered();
78 break;
79 case G4Text::Layout::right:
80 actor->GetTextProperty()->SetJustificationToRight();
81 break;
82 }
83
84 vc.fViewer->renderer->AddActor(actor);
85 }
86
87 void G4VtkText2DPipeline::Enable()
88 {
89 actor->SetVisibility(1);
90 }
91
92 void G4VtkText2DPipeline::Disable()
93 {
94 actor->SetVisibility(0);
95 }
96
97 void G4VtkText2DPipeline::Print()
98 {
99 G4VVtkPipeline::Print();
100 }
101
102 void G4VtkText2DPipeline::Modified()
103 {
104 G4VVtkPipeline::Modified();
105 }
106
107 void G4VtkText2DPipeline::Clear()
108 {
109 renderer->RemoveViewProp(actor);
110
111 G4VVtkPipeline::Clear();
112 }
113
114 void G4VtkText2DPipeline::SetText(const G4String& text)
115 {
116 actor->SetInput(text.c_str());
117 }
118