Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/CairoCompositor.cpp @ 1614:ad9b425f27ae
new class: ArrowSceneLayer
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 30 Oct 2020 16:26:39 +0100 |
| parents | 787db80a5a1b |
| children | 9ac2a65d4172 |
| 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 | |
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25 #include "Internals/CairoArrowRenderer.h" |
| 597 | 26 #include "Internals/CairoColorTextureRenderer.h" |
| 27 #include "Internals/CairoFloatTextureRenderer.h" | |
| 28 #include "Internals/CairoInfoPanelRenderer.h" | |
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29 #include "Internals/CairoLookupTableTextureRenderer.h" |
| 597 | 30 #include "Internals/CairoPolylineRenderer.h" |
| 31 #include "Internals/CairoTextRenderer.h" | |
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32 #include "Internals/MacroLayerRenderer.h" |
| 597 | 33 |
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34 #include <OrthancException.h> |
| 597 | 35 |
| 36 namespace OrthancStone | |
| 37 { | |
| 38 cairo_t* CairoCompositor::GetCairoContext() | |
| 39 { | |
| 40 if (context_.get() == NULL) | |
| 41 { | |
| 42 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 43 } | |
| 44 else | |
| 45 { | |
| 46 return context_->GetObject(); | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 Internals::CompositorHelper::ILayerRenderer* CairoCompositor::Create(const ISceneLayer& layer) | |
| 51 { | |
| 52 switch (layer.GetType()) | |
| 53 { | |
| 54 case ISceneLayer::Type_Polyline: | |
| 55 return new Internals::CairoPolylineRenderer(*this, layer); | |
| 56 | |
| 57 case ISceneLayer::Type_InfoPanel: | |
| 58 return new Internals::CairoInfoPanelRenderer(*this, layer); | |
| 59 | |
| 60 case ISceneLayer::Type_ColorTexture: | |
| 61 return new Internals::CairoColorTextureRenderer(*this, layer); | |
| 62 | |
| 63 case ISceneLayer::Type_FloatTexture: | |
| 64 return new Internals::CairoFloatTextureRenderer(*this, layer); | |
| 65 | |
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66 case ISceneLayer::Type_LookupTableTexture: |
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67 return new Internals::CairoLookupTableTextureRenderer(*this, layer); |
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68 |
| 597 | 69 case ISceneLayer::Type_Text: |
| 70 { | |
| 71 const TextSceneLayer& l = dynamic_cast<const TextSceneLayer&>(layer); | |
| 72 | |
| 73 Fonts::const_iterator found = fonts_.find(l.GetFontIndex()); | |
| 74 if (found == fonts_.end()) | |
| 75 { | |
| 76 return NULL; | |
| 77 } | |
| 78 else | |
| 79 { | |
| 80 assert(found->second != NULL); | |
| 81 return new Internals::CairoTextRenderer(*this, *found->second, l); | |
| 82 } | |
| 83 } | |
| 84 | |
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85 case ISceneLayer::Type_Macro: |
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86 return new Internals::MacroLayerRenderer(*this, layer); |
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87 |
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88 case ISceneLayer::Type_Arrow: |
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89 return new Internals::CairoArrowRenderer(*this, layer); |
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90 |
| 597 | 91 default: |
| 92 return NULL; | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 | |
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97 CairoCompositor::CairoCompositor(unsigned int canvasWidth, |
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98 unsigned int canvasHeight) |
| 597 | 99 { |
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100 ResetScene(); |
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101 canvas_.SetSize(canvasWidth, canvasHeight, false); |
| 909 | 102 } |
| 103 | |
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104 void CairoCompositor::SetCanvasSize(unsigned int canvasWidth, |
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105 unsigned int canvasHeight) |
| 909 | 106 { |
| 597 | 107 canvas_.SetSize(canvasWidth, canvasHeight, false); |
| 108 } | |
| 109 | |
| 110 CairoCompositor::~CairoCompositor() | |
| 111 { | |
| 112 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) | |
| 113 { | |
| 114 assert(it->second != NULL); | |
| 115 delete it->second; | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 | |
| 120 void CairoCompositor::SetFont(size_t index, | |
| 121 GlyphBitmapAlphabet* dict) // Takes ownership | |
| 122 { | |
| 123 if (dict == NULL) | |
| 124 { | |
| 125 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 126 } | |
| 127 else | |
| 128 { | |
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129 std::unique_ptr<GlyphBitmapAlphabet> protection(dict); |
| 597 | 130 |
| 131 Fonts::iterator found = fonts_.find(index); | |
| 132 | |
| 133 if (found == fonts_.end()) | |
| 134 { | |
| 135 fonts_[index] = protection.release(); | |
| 136 } | |
| 137 else | |
| 138 { | |
| 139 assert(found->second != NULL); | |
| 140 delete found->second; | |
| 141 | |
| 142 found->second = protection.release(); | |
| 143 } | |
| 144 } | |
| 145 } | |
| 146 | |
| 147 | |
| 148 #if ORTHANC_ENABLE_LOCALE == 1 | |
| 149 void CairoCompositor::SetFont(size_t index, | |
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150 const std::string& ttf, |
| 597 | 151 unsigned int fontSize, |
| 152 Orthanc::Encoding codepage) | |
| 153 { | |
| 154 FontRenderer renderer; | |
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155 renderer.LoadFont(ttf, fontSize); |
| 597 | 156 |
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157 std::unique_ptr<GlyphBitmapAlphabet> alphabet(new GlyphBitmapAlphabet); |
| 597 | 158 alphabet->LoadCodepage(renderer, codepage); |
| 159 | |
| 160 SetFont(index, alphabet.release()); | |
| 161 } | |
| 162 #endif | |
| 163 | |
| 164 | |
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165 void CairoCompositor::Refresh(const Scene2D& scene) |
| 597 | 166 { |
| 167 context_.reset(new CairoContext(canvas_)); | |
| 168 | |
| 169 // https://www.cairographics.org/FAQ/#clear_a_surface | |
| 170 cairo_set_source_rgba(context_->GetObject(), 0, 0, 0, 255); | |
| 171 cairo_paint(context_->GetObject()); | |
| 172 | |
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173 helper_->Refresh(scene, canvas_.GetWidth(), canvas_.GetHeight()); |
| 597 | 174 context_.reset(); |
| 175 } | |
| 176 | |
| 177 | |
| 178 Orthanc::ImageAccessor* CairoCompositor::RenderText(size_t fontIndex, | |
| 179 const std::string& utf8) const | |
| 180 { | |
| 181 Fonts::const_iterator found = fonts_.find(fontIndex); | |
| 182 | |
| 183 if (found == fonts_.end()) | |
| 184 { | |
| 185 return NULL; | |
| 186 } | |
| 187 else | |
| 188 { | |
| 189 assert(found->second != NULL); | |
| 190 return found->second->RenderText(utf8); | |
| 191 } | |
| 192 } | |
| 193 } |