Mercurial > hg > orthanc-stone
annotate Framework/Scene2D/CairoCompositor.cpp @ 600:6129b1e5ba42
BasicScene SDL sample
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 27 Apr 2019 12:38:25 +0200 |
| parents | a806abb497b8 |
| children | 55411e7da2f7 |
| 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 | |
| 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
| 6 * | |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 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 | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "CairoCompositor.h" | |
| 23 | |
| 24 #include "Internals/CairoColorTextureRenderer.h" | |
| 25 #include "Internals/CairoFloatTextureRenderer.h" | |
| 26 #include "Internals/CairoInfoPanelRenderer.h" | |
| 27 #include "Internals/CairoPolylineRenderer.h" | |
| 28 #include "Internals/CairoTextRenderer.h" | |
| 29 | |
| 30 #include <Core/OrthancException.h> | |
| 31 | |
| 32 namespace OrthancStone | |
| 33 { | |
| 34 cairo_t* CairoCompositor::GetCairoContext() | |
| 35 { | |
| 36 if (context_.get() == NULL) | |
| 37 { | |
| 38 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 39 } | |
| 40 else | |
| 41 { | |
| 42 return context_->GetObject(); | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 | |
| 47 Internals::CompositorHelper::ILayerRenderer* CairoCompositor::Create(const ISceneLayer& layer) | |
| 48 { | |
| 49 switch (layer.GetType()) | |
| 50 { | |
| 51 case ISceneLayer::Type_Polyline: | |
| 52 return new Internals::CairoPolylineRenderer(*this, layer); | |
| 53 | |
| 54 case ISceneLayer::Type_InfoPanel: | |
| 55 return new Internals::CairoInfoPanelRenderer(*this, layer); | |
| 56 | |
| 57 case ISceneLayer::Type_ColorTexture: | |
| 58 return new Internals::CairoColorTextureRenderer(*this, layer); | |
| 59 | |
| 60 case ISceneLayer::Type_FloatTexture: | |
| 61 return new Internals::CairoFloatTextureRenderer(*this, layer); | |
| 62 | |
| 63 case ISceneLayer::Type_Text: | |
| 64 { | |
| 65 const TextSceneLayer& l = dynamic_cast<const TextSceneLayer&>(layer); | |
| 66 | |
| 67 Fonts::const_iterator found = fonts_.find(l.GetFontIndex()); | |
| 68 if (found == fonts_.end()) | |
| 69 { | |
| 70 return NULL; | |
| 71 } | |
| 72 else | |
| 73 { | |
| 74 assert(found->second != NULL); | |
| 75 return new Internals::CairoTextRenderer(*this, *found->second, l); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 default: | |
| 80 return NULL; | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 | |
|
600
6129b1e5ba42
BasicScene SDL sample
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
598
diff
changeset
|
85 CairoCompositor::CairoCompositor(const Scene2D& scene, |
| 597 | 86 unsigned int canvasWidth, |
| 87 unsigned int canvasHeight) : | |
| 88 helper_(scene, *this) | |
| 89 { | |
| 90 canvas_.SetSize(canvasWidth, canvasHeight, false); | |
| 91 } | |
| 92 | |
| 93 | |
| 94 CairoCompositor::~CairoCompositor() | |
| 95 { | |
| 96 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) | |
| 97 { | |
| 98 assert(it->second != NULL); | |
| 99 delete it->second; | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 | |
| 104 void CairoCompositor::SetFont(size_t index, | |
| 105 GlyphBitmapAlphabet* dict) // Takes ownership | |
| 106 { | |
| 107 if (dict == NULL) | |
| 108 { | |
| 109 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 110 } | |
| 111 else | |
| 112 { | |
| 113 std::auto_ptr<GlyphBitmapAlphabet> protection(dict); | |
| 114 | |
| 115 Fonts::iterator found = fonts_.find(index); | |
| 116 | |
| 117 if (found == fonts_.end()) | |
| 118 { | |
| 119 fonts_[index] = protection.release(); | |
| 120 } | |
| 121 else | |
| 122 { | |
| 123 assert(found->second != NULL); | |
| 124 delete found->second; | |
| 125 | |
| 126 found->second = protection.release(); | |
| 127 } | |
| 128 } | |
| 129 } | |
| 130 | |
| 131 | |
| 132 #if ORTHANC_ENABLE_LOCALE == 1 | |
| 133 void CairoCompositor::SetFont(size_t index, | |
| 134 Orthanc::EmbeddedResources::FileResourceId resource, | |
| 135 unsigned int fontSize, | |
| 136 Orthanc::Encoding codepage) | |
| 137 { | |
| 138 FontRenderer renderer; | |
| 598 | 139 renderer.LoadFont(resource, fontSize); |
| 597 | 140 |
| 141 std::auto_ptr<GlyphBitmapAlphabet> alphabet(new GlyphBitmapAlphabet); | |
| 142 alphabet->LoadCodepage(renderer, codepage); | |
| 143 | |
| 144 SetFont(index, alphabet.release()); | |
| 145 } | |
| 146 #endif | |
| 147 | |
| 148 | |
| 149 void CairoCompositor::Refresh() | |
| 150 { | |
| 151 context_.reset(new CairoContext(canvas_)); | |
| 152 | |
| 153 // https://www.cairographics.org/FAQ/#clear_a_surface | |
| 154 cairo_set_source_rgba(context_->GetObject(), 0, 0, 0, 255); | |
| 155 cairo_paint(context_->GetObject()); | |
| 156 | |
| 157 helper_.Refresh(canvas_.GetWidth(), canvas_.GetHeight()); | |
| 158 context_.reset(); | |
| 159 } | |
| 160 | |
| 161 | |
| 162 Orthanc::ImageAccessor* CairoCompositor::RenderText(size_t fontIndex, | |
| 163 const std::string& utf8) const | |
| 164 { | |
| 165 Fonts::const_iterator found = fonts_.find(fontIndex); | |
| 166 | |
| 167 if (found == fonts_.end()) | |
| 168 { | |
| 169 return NULL; | |
| 170 } | |
| 171 else | |
| 172 { | |
| 173 assert(found->second != NULL); | |
| 174 return found->second->RenderText(utf8); | |
| 175 } | |
| 176 } | |
| 177 } |