Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/CairoCompositor.cpp @ 1870:3889ae96d2e9
added copyright UCLouvain
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Jan 2022 11:04:09 +0100 |
| parents | 373d7f7e796e |
| children | 7053b8a0aaec |
| 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) 2017-2021 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2021 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 597 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
| 597 | 10 * as published by the Free Software Foundation, either version 3 of |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
|
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 597 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "CairoCompositor.h" | |
| 25 | |
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26 #include "Internals/CairoArrowRenderer.h" |
| 597 | 27 #include "Internals/CairoColorTextureRenderer.h" |
| 28 #include "Internals/CairoFloatTextureRenderer.h" | |
| 29 #include "Internals/CairoInfoPanelRenderer.h" | |
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30 #include "Internals/CairoLookupTableTextureRenderer.h" |
| 597 | 31 #include "Internals/CairoPolylineRenderer.h" |
| 32 #include "Internals/CairoTextRenderer.h" | |
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33 #include "Internals/MacroLayerRenderer.h" |
| 597 | 34 |
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35 #include <OrthancException.h> |
| 597 | 36 |
| 37 namespace OrthancStone | |
| 38 { | |
| 39 cairo_t* CairoCompositor::GetCairoContext() | |
| 40 { | |
| 41 if (context_.get() == NULL) | |
| 42 { | |
| 43 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 44 } | |
| 45 else | |
| 46 { | |
| 47 return context_->GetObject(); | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 Internals::CompositorHelper::ILayerRenderer* CairoCompositor::Create(const ISceneLayer& layer) | |
| 52 { | |
| 53 switch (layer.GetType()) | |
| 54 { | |
| 55 case ISceneLayer::Type_Polyline: | |
| 56 return new Internals::CairoPolylineRenderer(*this, layer); | |
| 57 | |
| 58 case ISceneLayer::Type_InfoPanel: | |
| 59 return new Internals::CairoInfoPanelRenderer(*this, layer); | |
| 60 | |
| 61 case ISceneLayer::Type_ColorTexture: | |
| 62 return new Internals::CairoColorTextureRenderer(*this, layer); | |
| 63 | |
| 64 case ISceneLayer::Type_FloatTexture: | |
| 65 return new Internals::CairoFloatTextureRenderer(*this, layer); | |
| 66 | |
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67 case ISceneLayer::Type_LookupTableTexture: |
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68 return new Internals::CairoLookupTableTextureRenderer(*this, layer); |
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69 |
| 597 | 70 case ISceneLayer::Type_Text: |
| 71 { | |
| 72 const TextSceneLayer& l = dynamic_cast<const TextSceneLayer&>(layer); | |
| 73 | |
| 74 Fonts::const_iterator found = fonts_.find(l.GetFontIndex()); | |
| 75 if (found == fonts_.end()) | |
| 76 { | |
| 77 return NULL; | |
| 78 } | |
| 79 else | |
| 80 { | |
| 81 assert(found->second != NULL); | |
| 82 return new Internals::CairoTextRenderer(*this, *found->second, l); | |
| 83 } | |
| 84 } | |
| 85 | |
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86 case ISceneLayer::Type_Macro: |
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87 return new Internals::MacroLayerRenderer(*this, layer); |
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88 |
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89 case ISceneLayer::Type_Arrow: |
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90 return new Internals::CairoArrowRenderer(*this, layer); |
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91 |
| 597 | 92 default: |
| 93 return NULL; | |
| 94 } | |
| 95 } | |
| 96 | |
| 97 | |
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98 CairoCompositor::CairoCompositor(unsigned int canvasWidth, |
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99 unsigned int canvasHeight) |
| 597 | 100 { |
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101 ResetScene(); |
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102 canvas_.SetSize(canvasWidth, canvasHeight, false); |
| 909 | 103 } |
| 104 | |
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105 void CairoCompositor::SetCanvasSize(unsigned int canvasWidth, |
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106 unsigned int canvasHeight) |
| 909 | 107 { |
| 597 | 108 canvas_.SetSize(canvasWidth, canvasHeight, false); |
| 109 } | |
| 110 | |
| 111 CairoCompositor::~CairoCompositor() | |
| 112 { | |
| 113 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) | |
| 114 { | |
| 115 assert(it->second != NULL); | |
| 116 delete it->second; | |
| 117 } | |
| 118 } | |
| 119 | |
| 120 | |
| 121 void CairoCompositor::SetFont(size_t index, | |
| 122 GlyphBitmapAlphabet* dict) // Takes ownership | |
| 123 { | |
| 124 if (dict == NULL) | |
| 125 { | |
| 126 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 127 } | |
| 128 else | |
| 129 { | |
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130 std::unique_ptr<GlyphBitmapAlphabet> protection(dict); |
| 597 | 131 |
| 132 Fonts::iterator found = fonts_.find(index); | |
| 133 | |
| 134 if (found == fonts_.end()) | |
| 135 { | |
| 136 fonts_[index] = protection.release(); | |
| 137 } | |
| 138 else | |
| 139 { | |
| 140 assert(found->second != NULL); | |
| 141 delete found->second; | |
| 142 | |
| 143 found->second = protection.release(); | |
| 144 } | |
| 145 } | |
| 146 } | |
| 147 | |
| 148 | |
| 149 #if ORTHANC_ENABLE_LOCALE == 1 | |
| 150 void CairoCompositor::SetFont(size_t index, | |
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151 const std::string& ttf, |
| 597 | 152 unsigned int fontSize, |
| 153 Orthanc::Encoding codepage) | |
| 154 { | |
| 155 FontRenderer renderer; | |
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156 renderer.LoadFont(ttf, fontSize); |
| 597 | 157 |
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158 std::unique_ptr<GlyphBitmapAlphabet> alphabet(new GlyphBitmapAlphabet); |
| 597 | 159 alphabet->LoadCodepage(renderer, codepage); |
| 160 | |
| 161 SetFont(index, alphabet.release()); | |
| 162 } | |
| 163 #endif | |
| 164 | |
| 165 | |
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166 void CairoCompositor::Refresh(const Scene2D& scene) |
| 597 | 167 { |
| 168 context_.reset(new CairoContext(canvas_)); | |
| 169 | |
| 170 // https://www.cairographics.org/FAQ/#clear_a_surface | |
| 171 cairo_set_source_rgba(context_->GetObject(), 0, 0, 0, 255); | |
| 172 cairo_paint(context_->GetObject()); | |
| 173 | |
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174 helper_->Refresh(scene, canvas_.GetWidth(), canvas_.GetHeight()); |
| 597 | 175 context_.reset(); |
| 176 } | |
| 177 | |
| 178 | |
| 179 Orthanc::ImageAccessor* CairoCompositor::RenderText(size_t fontIndex, | |
| 180 const std::string& utf8) const | |
| 181 { | |
| 182 Fonts::const_iterator found = fonts_.find(fontIndex); | |
| 183 | |
| 184 if (found == fonts_.end()) | |
| 185 { | |
| 186 return NULL; | |
| 187 } | |
| 188 else | |
| 189 { | |
| 190 assert(found->second != NULL); | |
| 191 return found->second->RenderText(utf8); | |
| 192 } | |
| 193 } | |
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194 |
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195 |
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196 #if ORTHANC_ENABLE_LOCALE == 1 |
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197 TextBoundingBox* CairoCompositor::ComputeTextBoundingBox(size_t fontIndex, |
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198 const std::string& utf8) |
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199 { |
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200 Fonts::const_iterator found = fonts_.find(fontIndex); |
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201 |
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202 if (found == fonts_.end()) |
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203 { |
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204 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange, |
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205 "No such font: " + boost::lexical_cast<std::string>(fontIndex)); |
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206 } |
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207 else |
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208 { |
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209 assert(found->second != NULL); |
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210 return new TextBoundingBox(found->second->GetAlphabet(), utf8); |
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211 } |
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212 } |
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213 #endif |
| 597 | 214 } |