Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/CairoCompositor.cpp @ 1598:8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 26 Oct 2020 20:49:28 +0100 |
parents | 4fb8fdf03314 |
children | 787db80a5a1b |
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" | |
31 | |
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32 #include <OrthancException.h> |
597 | 33 |
34 namespace OrthancStone | |
35 { | |
36 cairo_t* CairoCompositor::GetCairoContext() | |
37 { | |
38 if (context_.get() == NULL) | |
39 { | |
40 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
41 } | |
42 else | |
43 { | |
44 return context_->GetObject(); | |
45 } | |
46 } | |
47 | |
48 Internals::CompositorHelper::ILayerRenderer* CairoCompositor::Create(const ISceneLayer& layer) | |
49 { | |
50 switch (layer.GetType()) | |
51 { | |
52 case ISceneLayer::Type_Polyline: | |
53 return new Internals::CairoPolylineRenderer(*this, layer); | |
54 | |
55 case ISceneLayer::Type_InfoPanel: | |
56 return new Internals::CairoInfoPanelRenderer(*this, layer); | |
57 | |
58 case ISceneLayer::Type_ColorTexture: | |
59 return new Internals::CairoColorTextureRenderer(*this, layer); | |
60 | |
61 case ISceneLayer::Type_FloatTexture: | |
62 return new Internals::CairoFloatTextureRenderer(*this, layer); | |
63 | |
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64 case ISceneLayer::Type_LookupTableTexture: |
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65 return new Internals::CairoLookupTableTextureRenderer(*this, layer); |
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66 |
597 | 67 case ISceneLayer::Type_Text: |
68 { | |
69 const TextSceneLayer& l = dynamic_cast<const TextSceneLayer&>(layer); | |
70 | |
71 Fonts::const_iterator found = fonts_.find(l.GetFontIndex()); | |
72 if (found == fonts_.end()) | |
73 { | |
74 return NULL; | |
75 } | |
76 else | |
77 { | |
78 assert(found->second != NULL); | |
79 return new Internals::CairoTextRenderer(*this, *found->second, l); | |
80 } | |
81 } | |
82 | |
83 default: | |
84 return NULL; | |
85 } | |
86 } | |
87 | |
88 | |
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89 CairoCompositor::CairoCompositor(unsigned int canvasWidth, |
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90 unsigned int canvasHeight) |
597 | 91 { |
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92 ResetScene(); |
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93 canvas_.SetSize(canvasWidth, canvasHeight, false); |
909 | 94 } |
95 | |
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96 void CairoCompositor::SetCanvasSize(unsigned int canvasWidth, |
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97 unsigned int canvasHeight) |
909 | 98 { |
597 | 99 canvas_.SetSize(canvasWidth, canvasHeight, false); |
100 } | |
101 | |
102 CairoCompositor::~CairoCompositor() | |
103 { | |
104 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) | |
105 { | |
106 assert(it->second != NULL); | |
107 delete it->second; | |
108 } | |
109 } | |
110 | |
111 | |
112 void CairoCompositor::SetFont(size_t index, | |
113 GlyphBitmapAlphabet* dict) // Takes ownership | |
114 { | |
115 if (dict == NULL) | |
116 { | |
117 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
118 } | |
119 else | |
120 { | |
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121 std::unique_ptr<GlyphBitmapAlphabet> protection(dict); |
597 | 122 |
123 Fonts::iterator found = fonts_.find(index); | |
124 | |
125 if (found == fonts_.end()) | |
126 { | |
127 fonts_[index] = protection.release(); | |
128 } | |
129 else | |
130 { | |
131 assert(found->second != NULL); | |
132 delete found->second; | |
133 | |
134 found->second = protection.release(); | |
135 } | |
136 } | |
137 } | |
138 | |
139 | |
140 #if ORTHANC_ENABLE_LOCALE == 1 | |
141 void CairoCompositor::SetFont(size_t index, | |
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142 const std::string& ttf, |
597 | 143 unsigned int fontSize, |
144 Orthanc::Encoding codepage) | |
145 { | |
146 FontRenderer renderer; | |
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147 renderer.LoadFont(ttf, fontSize); |
597 | 148 |
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149 std::unique_ptr<GlyphBitmapAlphabet> alphabet(new GlyphBitmapAlphabet); |
597 | 150 alphabet->LoadCodepage(renderer, codepage); |
151 | |
152 SetFont(index, alphabet.release()); | |
153 } | |
154 #endif | |
155 | |
156 | |
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157 void CairoCompositor::Refresh(const Scene2D& scene) |
597 | 158 { |
159 context_.reset(new CairoContext(canvas_)); | |
160 | |
161 // https://www.cairographics.org/FAQ/#clear_a_surface | |
162 cairo_set_source_rgba(context_->GetObject(), 0, 0, 0, 255); | |
163 cairo_paint(context_->GetObject()); | |
164 | |
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165 helper_->Refresh(scene, canvas_.GetWidth(), canvas_.GetHeight()); |
597 | 166 context_.reset(); |
167 } | |
168 | |
169 | |
170 Orthanc::ImageAccessor* CairoCompositor::RenderText(size_t fontIndex, | |
171 const std::string& utf8) const | |
172 { | |
173 Fonts::const_iterator found = fonts_.find(fontIndex); | |
174 | |
175 if (found == fonts_.end()) | |
176 { | |
177 return NULL; | |
178 } | |
179 else | |
180 { | |
181 assert(found->second != NULL); | |
182 return found->second->RenderText(utf8); | |
183 } | |
184 } | |
185 } |