Mercurial > hg > orthanc-stone
annotate Framework/Scene2D/CairoCompositor.cpp @ 768:55411e7da2f7
LookupTableTextureSceneLayer
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 23 May 2019 20:04:33 +0200 |
| parents | 6129b1e5ba42 |
| children | 7a7e4e1f558f |
| 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" | |
|
768
55411e7da2f7
LookupTableTextureSceneLayer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
600
diff
changeset
|
27 #include "Internals/CairoLookupTableTextureRenderer.h" |
| 597 | 28 #include "Internals/CairoPolylineRenderer.h" |
| 29 #include "Internals/CairoTextRenderer.h" | |
| 30 | |
| 31 #include <Core/OrthancException.h> | |
| 32 | |
| 33 namespace OrthancStone | |
| 34 { | |
| 35 cairo_t* CairoCompositor::GetCairoContext() | |
| 36 { | |
| 37 if (context_.get() == NULL) | |
| 38 { | |
| 39 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 40 } | |
| 41 else | |
| 42 { | |
| 43 return context_->GetObject(); | |
| 44 } | |
| 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 | |
|
768
55411e7da2f7
LookupTableTextureSceneLayer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
600
diff
changeset
|
64 case ISceneLayer::Type_LookupTableTexture: |
|
55411e7da2f7
LookupTableTextureSceneLayer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
600
diff
changeset
|
65 return new Internals::CairoLookupTableTextureRenderer(*this, layer); |
|
55411e7da2f7
LookupTableTextureSceneLayer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
600
diff
changeset
|
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 | |
|
600
6129b1e5ba42
BasicScene SDL sample
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
598
diff
changeset
|
89 CairoCompositor::CairoCompositor(const Scene2D& scene, |
| 597 | 90 unsigned int canvasWidth, |
| 91 unsigned int canvasHeight) : | |
| 92 helper_(scene, *this) | |
| 93 { | |
| 94 canvas_.SetSize(canvasWidth, canvasHeight, false); | |
| 95 } | |
| 96 | |
| 97 | |
| 98 CairoCompositor::~CairoCompositor() | |
| 99 { | |
| 100 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) | |
| 101 { | |
| 102 assert(it->second != NULL); | |
| 103 delete it->second; | |
| 104 } | |
| 105 } | |
| 106 | |
| 107 | |
| 108 void CairoCompositor::SetFont(size_t index, | |
| 109 GlyphBitmapAlphabet* dict) // Takes ownership | |
| 110 { | |
| 111 if (dict == NULL) | |
| 112 { | |
| 113 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 114 } | |
| 115 else | |
| 116 { | |
| 117 std::auto_ptr<GlyphBitmapAlphabet> protection(dict); | |
| 118 | |
| 119 Fonts::iterator found = fonts_.find(index); | |
| 120 | |
| 121 if (found == fonts_.end()) | |
| 122 { | |
| 123 fonts_[index] = protection.release(); | |
| 124 } | |
| 125 else | |
| 126 { | |
| 127 assert(found->second != NULL); | |
| 128 delete found->second; | |
| 129 | |
| 130 found->second = protection.release(); | |
| 131 } | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 | |
| 136 #if ORTHANC_ENABLE_LOCALE == 1 | |
| 137 void CairoCompositor::SetFont(size_t index, | |
| 138 Orthanc::EmbeddedResources::FileResourceId resource, | |
| 139 unsigned int fontSize, | |
| 140 Orthanc::Encoding codepage) | |
| 141 { | |
| 142 FontRenderer renderer; | |
| 598 | 143 renderer.LoadFont(resource, fontSize); |
| 597 | 144 |
| 145 std::auto_ptr<GlyphBitmapAlphabet> alphabet(new GlyphBitmapAlphabet); | |
| 146 alphabet->LoadCodepage(renderer, codepage); | |
| 147 | |
| 148 SetFont(index, alphabet.release()); | |
| 149 } | |
| 150 #endif | |
| 151 | |
| 152 | |
| 153 void CairoCompositor::Refresh() | |
| 154 { | |
| 155 context_.reset(new CairoContext(canvas_)); | |
| 156 | |
| 157 // https://www.cairographics.org/FAQ/#clear_a_surface | |
| 158 cairo_set_source_rgba(context_->GetObject(), 0, 0, 0, 255); | |
| 159 cairo_paint(context_->GetObject()); | |
| 160 | |
| 161 helper_.Refresh(canvas_.GetWidth(), canvas_.GetHeight()); | |
| 162 context_.reset(); | |
| 163 } | |
| 164 | |
| 165 | |
| 166 Orthanc::ImageAccessor* CairoCompositor::RenderText(size_t fontIndex, | |
| 167 const std::string& utf8) const | |
| 168 { | |
| 169 Fonts::const_iterator found = fonts_.find(fontIndex); | |
| 170 | |
| 171 if (found == fonts_.end()) | |
| 172 { | |
| 173 return NULL; | |
| 174 } | |
| 175 else | |
| 176 { | |
| 177 assert(found->second != NULL); | |
| 178 return found->second->RenderText(utf8); | |
| 179 } | |
| 180 } | |
| 181 } |