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> |
|---|---|
| date | Mon, 26 Oct 2020 20:49:28 +0100 |
| parents | 4fb8fdf03314 |
| children | 787db80a5a1b |
| rev | line source |
|---|---|
| 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 } |