Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/CairoCompositor.cpp @ 1611:787db80a5a1b
new class MacroLayerRenderer
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 29 Oct 2020 18:02:03 +0100 |
parents | 8563ea5d8ae4 |
children | ad9b425f27ae |
rev | line source |
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597 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
597 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
597 | 9 * as published by the Free Software Foundation, either version 3 of |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
597 | 20 **/ |
21 | |
22 | |
23 #include "CairoCompositor.h" | |
24 | |
25 #include "Internals/CairoColorTextureRenderer.h" | |
26 #include "Internals/CairoFloatTextureRenderer.h" | |
27 #include "Internals/CairoInfoPanelRenderer.h" | |
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28 #include "Internals/CairoLookupTableTextureRenderer.h" |
597 | 29 #include "Internals/CairoPolylineRenderer.h" |
30 #include "Internals/CairoTextRenderer.h" | |
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31 #include "Internals/MacroLayerRenderer.h" |
597 | 32 |
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33 #include <OrthancException.h> |
597 | 34 |
35 namespace OrthancStone | |
36 { | |
37 cairo_t* CairoCompositor::GetCairoContext() | |
38 { | |
39 if (context_.get() == NULL) | |
40 { | |
41 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
42 } | |
43 else | |
44 { | |
45 return context_->GetObject(); | |
46 } | |
47 } | |
48 | |
49 Internals::CompositorHelper::ILayerRenderer* CairoCompositor::Create(const ISceneLayer& layer) | |
50 { | |
51 switch (layer.GetType()) | |
52 { | |
53 case ISceneLayer::Type_Polyline: | |
54 return new Internals::CairoPolylineRenderer(*this, layer); | |
55 | |
56 case ISceneLayer::Type_InfoPanel: | |
57 return new Internals::CairoInfoPanelRenderer(*this, layer); | |
58 | |
59 case ISceneLayer::Type_ColorTexture: | |
60 return new Internals::CairoColorTextureRenderer(*this, layer); | |
61 | |
62 case ISceneLayer::Type_FloatTexture: | |
63 return new Internals::CairoFloatTextureRenderer(*this, layer); | |
64 | |
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65 case ISceneLayer::Type_LookupTableTexture: |
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66 return new Internals::CairoLookupTableTextureRenderer(*this, layer); |
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67 |
597 | 68 case ISceneLayer::Type_Text: |
69 { | |
70 const TextSceneLayer& l = dynamic_cast<const TextSceneLayer&>(layer); | |
71 | |
72 Fonts::const_iterator found = fonts_.find(l.GetFontIndex()); | |
73 if (found == fonts_.end()) | |
74 { | |
75 return NULL; | |
76 } | |
77 else | |
78 { | |
79 assert(found->second != NULL); | |
80 return new Internals::CairoTextRenderer(*this, *found->second, l); | |
81 } | |
82 } | |
83 | |
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84 case ISceneLayer::Type_Macro: |
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85 return new Internals::MacroLayerRenderer(*this, layer); |
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86 |
597 | 87 default: |
88 return NULL; | |
89 } | |
90 } | |
91 | |
92 | |
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93 CairoCompositor::CairoCompositor(unsigned int canvasWidth, |
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94 unsigned int canvasHeight) |
597 | 95 { |
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96 ResetScene(); |
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97 canvas_.SetSize(canvasWidth, canvasHeight, false); |
909 | 98 } |
99 | |
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100 void CairoCompositor::SetCanvasSize(unsigned int canvasWidth, |
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101 unsigned int canvasHeight) |
909 | 102 { |
597 | 103 canvas_.SetSize(canvasWidth, canvasHeight, false); |
104 } | |
105 | |
106 CairoCompositor::~CairoCompositor() | |
107 { | |
108 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) | |
109 { | |
110 assert(it->second != NULL); | |
111 delete it->second; | |
112 } | |
113 } | |
114 | |
115 | |
116 void CairoCompositor::SetFont(size_t index, | |
117 GlyphBitmapAlphabet* dict) // Takes ownership | |
118 { | |
119 if (dict == NULL) | |
120 { | |
121 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
122 } | |
123 else | |
124 { | |
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125 std::unique_ptr<GlyphBitmapAlphabet> protection(dict); |
597 | 126 |
127 Fonts::iterator found = fonts_.find(index); | |
128 | |
129 if (found == fonts_.end()) | |
130 { | |
131 fonts_[index] = protection.release(); | |
132 } | |
133 else | |
134 { | |
135 assert(found->second != NULL); | |
136 delete found->second; | |
137 | |
138 found->second = protection.release(); | |
139 } | |
140 } | |
141 } | |
142 | |
143 | |
144 #if ORTHANC_ENABLE_LOCALE == 1 | |
145 void CairoCompositor::SetFont(size_t index, | |
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146 const std::string& ttf, |
597 | 147 unsigned int fontSize, |
148 Orthanc::Encoding codepage) | |
149 { | |
150 FontRenderer renderer; | |
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151 renderer.LoadFont(ttf, fontSize); |
597 | 152 |
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153 std::unique_ptr<GlyphBitmapAlphabet> alphabet(new GlyphBitmapAlphabet); |
597 | 154 alphabet->LoadCodepage(renderer, codepage); |
155 | |
156 SetFont(index, alphabet.release()); | |
157 } | |
158 #endif | |
159 | |
160 | |
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161 void CairoCompositor::Refresh(const Scene2D& scene) |
597 | 162 { |
163 context_.reset(new CairoContext(canvas_)); | |
164 | |
165 // https://www.cairographics.org/FAQ/#clear_a_surface | |
166 cairo_set_source_rgba(context_->GetObject(), 0, 0, 0, 255); | |
167 cairo_paint(context_->GetObject()); | |
168 | |
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169 helper_->Refresh(scene, canvas_.GetWidth(), canvas_.GetHeight()); |
597 | 170 context_.reset(); |
171 } | |
172 | |
173 | |
174 Orthanc::ImageAccessor* CairoCompositor::RenderText(size_t fontIndex, | |
175 const std::string& utf8) const | |
176 { | |
177 Fonts::const_iterator found = fonts_.find(fontIndex); | |
178 | |
179 if (found == fonts_.end()) | |
180 { | |
181 return NULL; | |
182 } | |
183 else | |
184 { | |
185 assert(found->second != NULL); | |
186 return found->second->RenderText(utf8); | |
187 } | |
188 } | |
189 } |