Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayerWidget.cpp @ 219:26e3bfe30e66 am
ReplaceLayer()
| author | am@osimis.io |
|---|---|
| date | Fri, 08 Jun 2018 14:41:45 +0200 |
| parents | 5412adf19980 |
| children | 3d523c9a8f0d 192e6e349e69 |
| rev | line source |
|---|---|
| 66 | 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) 2017-2018 Osimis S.A., Belgium |
| 66 | 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 "LayerWidget.h" | |
| 23 | |
| 99 | 24 #include "../Layers/SliceOutlineRenderer.h" |
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25 #include "../Toolbox/GeometryToolbox.h" |
| 85 | 26 |
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27 #include <Core/Logging.h> |
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28 |
| 85 | 29 static const double THIN_SLICE_THICKNESS = 100.0 * std::numeric_limits<double>::epsilon(); |
| 66 | 30 |
| 31 namespace OrthancStone | |
| 32 { | |
| 33 class LayerWidget::Scene : public boost::noncopyable | |
| 34 { | |
| 35 private: | |
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36 CoordinateSystem3D slice_; |
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37 double thickness_; |
| 66 | 38 size_t countMissing_; |
| 39 std::vector<ILayerRenderer*> renderers_; | |
| 40 | |
| 41 void DeleteLayer(size_t index) | |
| 42 { | |
| 43 if (index >= renderers_.size()) | |
| 44 { | |
| 45 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 46 } | |
| 47 | |
| 48 assert(countMissing_ <= renderers_.size()); | |
| 49 | |
| 50 if (renderers_[index] != NULL) | |
| 51 { | |
| 52 assert(countMissing_ < renderers_.size()); | |
| 53 delete renderers_[index]; | |
| 54 renderers_[index] = NULL; | |
| 55 countMissing_++; | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 public: | |
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60 Scene(const CoordinateSystem3D& slice, |
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61 double thickness, |
| 66 | 62 size_t countLayers) : |
| 63 slice_(slice), | |
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64 thickness_(thickness), |
| 66 | 65 countMissing_(countLayers), |
| 66 renderers_(countLayers, NULL) | |
| 67 { | |
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68 if (thickness <= 0) |
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69 { |
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70 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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71 } |
| 66 | 72 } |
| 73 | |
| 74 ~Scene() | |
| 75 { | |
| 76 for (size_t i = 0; i < renderers_.size(); i++) | |
| 77 { | |
| 78 DeleteLayer(i); | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 void SetLayer(size_t index, | |
| 83 ILayerRenderer* renderer) // Takes ownership | |
| 84 { | |
| 85 if (renderer == NULL) | |
| 86 { | |
| 87 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 88 } | |
| 89 | |
| 90 DeleteLayer(index); | |
| 91 | |
| 92 renderers_[index] = renderer; | |
| 93 countMissing_--; | |
| 94 } | |
| 95 | |
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96 const CoordinateSystem3D& GetSlice() const |
| 66 | 97 { |
| 98 return slice_; | |
| 99 } | |
| 100 | |
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101 bool HasRenderer(size_t index) |
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102 { |
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103 return renderers_[index] != NULL; |
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104 } |
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105 |
| 66 | 106 bool IsComplete() const |
| 107 { | |
| 108 return countMissing_ == 0; | |
| 109 } | |
| 110 | |
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111 unsigned int GetCountMissing() const |
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112 { |
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113 return countMissing_; |
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114 } |
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115 |
| 66 | 116 bool RenderScene(CairoContext& context, |
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117 const ViewportGeometry& view, |
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118 const CoordinateSystem3D& viewportSlice) |
| 66 | 119 { |
| 120 bool fullQuality = true; | |
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121 cairo_t *cr = context.GetObject(); |
| 66 | 122 |
| 123 for (size_t i = 0; i < renderers_.size(); i++) | |
| 124 { | |
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125 if (renderers_[i] != NULL) |
| 66 | 126 { |
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127 const CoordinateSystem3D& frameSlice = renderers_[i]->GetLayerSlice(); |
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128 |
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129 double x0, y0, x1, y1, x2, y2; |
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130 viewportSlice.ProjectPoint(x0, y0, frameSlice.GetOrigin()); |
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131 viewportSlice.ProjectPoint(x1, y1, frameSlice.GetOrigin() + frameSlice.GetAxisX()); |
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132 viewportSlice.ProjectPoint(x2, y2, frameSlice.GetOrigin() + frameSlice.GetAxisY()); |
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133 |
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134 /** |
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135 * Now we solve the system of linear equations Ax + b = x', given: |
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136 * A [0 ; 0] + b = [x0 ; y0] |
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137 * A [1 ; 0] + b = [x1 ; y1] |
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138 * A [0 ; 1] + b = [x2 ; y2] |
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139 * <=> |
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140 * b = [x0 ; y0] |
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141 * A [1 ; 0] = [x1 ; y1] - b = [x1 - x0 ; y1 - y0] |
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142 * A [0 ; 1] = [x2 ; y2] - b = [x2 - x0 ; y2 - y0] |
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143 * <=> |
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144 * b = [x0 ; y0] |
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145 * [a11 ; a21] = [x1 - x0 ; y1 - y0] |
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146 * [a12 ; a22] = [x2 - x0 ; y2 - y0] |
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147 **/ |
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148 |
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149 cairo_matrix_t transform; |
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150 cairo_matrix_init(&transform, x1 - x0, y1 - y0, x2 - x0, y2 - y0, x0, y0); |
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151 |
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152 cairo_save(cr); |
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153 cairo_transform(cr, &transform); |
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154 |
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155 if (!renderers_[i]->RenderLayer(context, view)) |
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156 { |
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157 cairo_restore(cr); |
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158 return false; |
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159 } |
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160 |
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161 cairo_restore(cr); |
| 66 | 162 } |
| 163 | |
| 164 if (renderers_[i] != NULL && | |
| 165 !renderers_[i]->IsFullQuality()) | |
| 166 { | |
| 167 fullQuality = false; | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 if (!fullQuality) | |
| 172 { | |
| 173 double x, y; | |
| 174 view.MapDisplayToScene(x, y, static_cast<double>(view.GetDisplayWidth()) / 2.0, 10); | |
| 175 | |
| 176 cairo_translate(cr, x, y); | |
| 95 | 177 |
| 178 #if 1 | |
| 179 double s = 5.0 / view.GetZoom(); | |
| 180 cairo_rectangle(cr, -s, -s, 2.0 * s, 2.0 * s); | |
| 181 #else | |
| 182 // TODO Drawing circles makes WebAssembly crash! | |
| 66 | 183 cairo_arc(cr, 0, 0, 5.0 / view.GetZoom(), 0, 2 * M_PI); |
| 95 | 184 #endif |
| 185 | |
| 66 | 186 cairo_set_line_width(cr, 2.0 / view.GetZoom()); |
| 187 cairo_set_source_rgb(cr, 1, 1, 1); | |
| 188 cairo_stroke_preserve(cr); | |
| 95 | 189 cairo_set_source_rgb(cr, 1, 0, 0); |
| 66 | 190 cairo_fill(cr); |
| 191 } | |
| 192 | |
| 193 return true; | |
| 194 } | |
| 195 | |
| 196 void SetLayerStyle(size_t index, | |
| 197 const RenderStyle& style) | |
| 198 { | |
| 199 if (renderers_[index] != NULL) | |
| 200 { | |
| 201 renderers_[index]->SetLayerStyle(style); | |
| 202 } | |
| 203 } | |
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204 |
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205 bool ContainsPlane(const CoordinateSystem3D& slice) const |
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206 { |
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207 bool isOpposite; |
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208 if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, |
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209 slice.GetNormal(), |
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210 slice_.GetNormal())) |
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211 { |
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212 return false; |
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213 } |
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214 else |
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215 { |
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216 double z = (slice_.ProjectAlongNormal(slice.GetOrigin()) - |
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217 slice_.ProjectAlongNormal(slice_.GetOrigin())); |
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218 |
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219 if (z < 0) |
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220 { |
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221 z = -z; |
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222 } |
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223 |
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224 return z <= thickness_; |
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225 } |
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226 } |
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227 |
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228 double GetThickness() const |
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229 { |
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230 return thickness_; |
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231 } |
| 66 | 232 }; |
| 233 | |
| 234 | |
| 235 bool LayerWidget::LookupLayer(size_t& index /* out */, | |
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236 const ILayerSource& layer) const |
| 66 | 237 { |
| 238 LayersIndex::const_iterator found = layersIndex_.find(&layer); | |
| 239 | |
| 240 if (found == layersIndex_.end()) | |
| 241 { | |
| 242 return false; | |
| 243 } | |
| 244 else | |
| 245 { | |
| 246 index = found->second; | |
| 247 assert(index < layers_.size() && | |
| 248 layers_[index] == &layer); | |
| 249 return true; | |
| 250 } | |
| 251 } | |
| 252 | |
| 85 | 253 |
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254 void LayerWidget::GetLayerExtent(Extent2D& extent, |
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255 ILayerSource& source) const |
| 85 | 256 { |
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257 extent.Reset(); |
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258 |
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259 std::vector<Vector> points; |
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260 if (source.GetExtent(points, slice_)) |
| 85 | 261 { |
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262 for (size_t i = 0; i < points.size(); i++) |
| 85 | 263 { |
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264 double x, y; |
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265 slice_.ProjectPoint(x, y, points[i]); |
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266 extent.AddPoint(x, y); |
| 85 | 267 } |
| 268 } | |
| 269 } | |
| 270 | |
| 66 | 271 |
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272 Extent2D LayerWidget::GetSceneExtent() |
| 66 | 273 { |
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274 Extent2D sceneExtent; |
| 66 | 275 |
| 276 for (size_t i = 0; i < layers_.size(); i++) | |
| 277 { | |
| 278 assert(layers_[i] != NULL); | |
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279 Extent2D layerExtent; |
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280 GetLayerExtent(layerExtent, *layers_[i]); |
| 66 | 281 |
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282 sceneExtent.Union(layerExtent); |
| 66 | 283 } |
| 284 | |
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285 return sceneExtent; |
| 66 | 286 } |
| 287 | |
| 288 | |
| 289 bool LayerWidget::RenderScene(CairoContext& context, | |
| 290 const ViewportGeometry& view) | |
| 291 { | |
| 292 if (currentScene_.get() != NULL) | |
| 293 { | |
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294 return currentScene_->RenderScene(context, view, slice_); |
| 66 | 295 } |
| 296 else | |
| 297 { | |
| 298 return true; | |
| 299 } | |
| 300 } | |
| 301 | |
| 302 | |
| 303 void LayerWidget::ResetPendingScene() | |
| 304 { | |
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305 double thickness; |
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306 if (pendingScene_.get() == NULL) |
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307 { |
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308 thickness = 1.0; |
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309 } |
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310 else |
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311 { |
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312 thickness = pendingScene_->GetThickness(); |
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313 } |
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314 |
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315 pendingScene_.reset(new Scene(slice_, thickness, layers_.size())); |
| 66 | 316 } |
| 317 | |
| 318 | |
| 319 void LayerWidget::UpdateLayer(size_t index, | |
| 320 ILayerRenderer* renderer, | |
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321 const CoordinateSystem3D& slice) |
| 66 | 322 { |
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323 LOG(INFO) << "Updating layer " << index; |
| 66 | 324 |
| 325 std::auto_ptr<ILayerRenderer> tmp(renderer); | |
| 326 | |
| 327 if (renderer == NULL) | |
| 328 { | |
| 329 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 330 } | |
| 331 | |
| 332 if (index >= layers_.size()) | |
| 333 { | |
| 334 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 335 } | |
| 336 | |
| 337 assert(layers_.size() == styles_.size()); | |
| 338 renderer->SetLayerStyle(styles_[index]); | |
| 339 | |
| 340 if (currentScene_.get() != NULL && | |
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341 currentScene_->ContainsPlane(slice)) |
| 66 | 342 { |
| 343 currentScene_->SetLayer(index, tmp.release()); | |
| 344 NotifyChange(); | |
| 345 } | |
| 346 else if (pendingScene_.get() != NULL && | |
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347 pendingScene_->ContainsPlane(slice)) |
| 66 | 348 { |
| 349 pendingScene_->SetLayer(index, tmp.release()); | |
| 350 | |
| 351 if (currentScene_.get() == NULL || | |
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352 !currentScene_->IsComplete() || |
| 66 | 353 pendingScene_->IsComplete()) |
| 354 { | |
| 355 currentScene_ = pendingScene_; | |
| 356 NotifyChange(); | |
| 357 } | |
| 358 } | |
| 359 } | |
| 360 | |
| 361 | |
| 362 LayerWidget::LayerWidget() : | |
| 78 | 363 started_(false) |
| 66 | 364 { |
| 365 SetBackgroundCleared(true); | |
| 366 } | |
| 367 | |
| 368 | |
| 369 LayerWidget::~LayerWidget() | |
| 370 { | |
| 371 for (size_t i = 0; i < layers_.size(); i++) | |
| 372 { | |
| 373 delete layers_[i]; | |
| 374 } | |
| 375 } | |
| 376 | |
| 377 | |
| 378 size_t LayerWidget::AddLayer(ILayerSource* layer) // Takes ownership | |
| 379 { | |
| 380 if (layer == NULL) | |
| 381 { | |
| 382 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 383 } | |
| 384 | |
| 385 size_t index = layers_.size(); | |
| 386 layers_.push_back(layer); | |
| 387 styles_.push_back(RenderStyle()); | |
| 388 layersIndex_[layer] = index; | |
| 389 | |
| 390 ResetPendingScene(); | |
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391 layer->Register(*this); |
| 66 | 392 |
| 103 | 393 ResetChangedLayers(); |
| 394 | |
| 66 | 395 return index; |
| 396 } | |
| 397 | |
| 219 | 398 void LayerWidget::ReplaceLayer(size_t index, ILayerSource* layer) // Takes ownership |
| 399 { | |
| 400 if (layer == NULL) | |
| 401 { | |
| 402 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 403 } | |
| 404 | |
| 405 if (index >= layers_.size()) | |
| 406 { | |
| 407 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 408 } | |
| 409 | |
| 410 delete layers_[index]; | |
| 411 layers_[index] = layer; | |
| 412 layersIndex_[layer] = index; | |
| 413 | |
| 414 ResetPendingScene(); | |
| 415 layer->Register(*this); | |
| 416 | |
| 417 InvalidateLayer(index); | |
| 418 } | |
| 419 | |
| 420 | |
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421 const RenderStyle& LayerWidget::GetLayerStyle(size_t layer) const |
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422 { |
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423 if (layer >= layers_.size()) |
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424 { |
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425 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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426 } |
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427 |
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428 assert(layers_.size() == styles_.size()); |
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429 return styles_[layer]; |
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430 } |
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431 |
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432 |
| 66 | 433 void LayerWidget::SetLayerStyle(size_t layer, |
| 434 const RenderStyle& style) | |
| 435 { | |
| 436 if (layer >= layers_.size()) | |
| 437 { | |
| 438 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 439 } | |
| 440 | |
| 441 assert(layers_.size() == styles_.size()); | |
| 442 styles_[layer] = style; | |
| 443 | |
| 444 if (currentScene_.get() != NULL) | |
| 445 { | |
| 446 currentScene_->SetLayerStyle(layer, style); | |
| 447 } | |
| 448 | |
| 449 if (pendingScene_.get() != NULL) | |
| 450 { | |
| 451 pendingScene_->SetLayerStyle(layer, style); | |
| 452 } | |
| 453 | |
| 454 NotifyChange(); | |
| 455 } | |
| 456 | |
| 457 | |
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458 void LayerWidget::SetSlice(const CoordinateSystem3D& slice) |
| 66 | 459 { |
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460 LOG(INFO) << "Setting slice origin: (" << slice.GetOrigin()[0] |
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461 << "," << slice.GetOrigin()[1] |
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462 << "," << slice.GetOrigin()[2] << ")"; |
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463 |
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464 Slice displayedSlice(slice_, THIN_SLICE_THICKNESS); |
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465 |
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466 //if (!displayedSlice.ContainsPlane(slice)) |
| 66 | 467 { |
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468 if (currentScene_.get() == NULL || |
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469 (pendingScene_.get() != NULL && |
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470 pendingScene_->IsComplete())) |
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471 { |
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472 currentScene_ = pendingScene_; |
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473 } |
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474 |
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475 slice_ = slice; |
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476 ResetPendingScene(); |
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477 |
| 92 | 478 InvalidateAllLayers(); // TODO Removing this line avoid loading twice the image in WASM |
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479 } |
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480 } |
| 66 | 481 |
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482 |
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483 void LayerWidget::NotifyGeometryReady(const ILayerSource& source) |
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484 { |
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485 size_t i; |
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486 if (LookupLayer(i, source)) |
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487 { |
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488 LOG(INFO) << "Geometry ready for layer " << i; |
| 103 | 489 |
| 490 changedLayers_[i] = true; | |
| 491 //layers_[i]->ScheduleLayerCreation(slice_); | |
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492 } |
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493 } |
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494 |
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495 |
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496 void LayerWidget::NotifyGeometryError(const ILayerSource& source) |
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497 { |
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498 LOG(ERROR) << "Cannot get geometry"; |
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499 } |
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500 |
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501 |
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502 void LayerWidget::InvalidateAllLayers() |
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503 { |
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504 for (size_t i = 0; i < layers_.size(); i++) |
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505 { |
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506 assert(layers_[i] != NULL); |
| 103 | 507 changedLayers_[i] = true; |
| 508 | |
| 509 //layers_[i]->ScheduleLayerCreation(slice_); | |
| 66 | 510 } |
| 511 } | |
| 512 | |
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513 |
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514 void LayerWidget::InvalidateLayer(size_t layer) |
| 66 | 515 { |
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516 if (layer >= layers_.size()) |
| 83 | 517 { |
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518 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
| 83 | 519 } |
| 66 | 520 |
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521 assert(layers_[layer] != NULL); |
| 103 | 522 changedLayers_[layer] = true; |
| 523 | |
| 524 //layers_[layer]->ScheduleLayerCreation(slice_); | |
| 77 | 525 } |
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526 |
| 77 | 527 |
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528 void LayerWidget::NotifyContentChange(const ILayerSource& source) |
| 66 | 529 { |
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530 size_t index; |
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531 if (LookupLayer(index, source)) |
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532 { |
| 103 | 533 InvalidateLayer(index); |
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534 } |
| 66 | 535 } |
| 536 | |
| 537 | |
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538 void LayerWidget::NotifySliceChange(const ILayerSource& source, |
| 77 | 539 const Slice& slice) |
| 66 | 540 { |
| 77 | 541 if (slice.ContainsPlane(slice_)) |
| 66 | 542 { |
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543 size_t index; |
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544 if (LookupLayer(index, source)) |
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545 { |
| 103 | 546 InvalidateLayer(index); |
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547 } |
| 66 | 548 } |
| 549 } | |
| 550 | |
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551 |
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552 void LayerWidget::NotifyLayerReady(std::auto_ptr<ILayerRenderer>& renderer, |
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553 const ILayerSource& source, |
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554 const CoordinateSystem3D& slice, |
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555 bool isError) |
| 66 | 556 { |
| 557 size_t index; | |
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558 if (LookupLayer(index, source)) |
| 66 | 559 { |
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560 if (isError) |
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561 { |
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562 LOG(ERROR) << "Using error renderer on layer " << index; |
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563 } |
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564 else |
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565 { |
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566 LOG(INFO) << "Renderer ready for layer " << index; |
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567 } |
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568 |
| 99 | 569 if (renderer.get() != NULL) |
| 570 { | |
| 571 UpdateLayer(index, renderer.release(), slice); | |
| 572 } | |
| 573 else if (isError) | |
| 574 { | |
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575 // TODO |
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576 //UpdateLayer(index, new SliceOutlineRenderer(slice), slice); |
| 99 | 577 } |
| 66 | 578 } |
| 579 } | |
| 103 | 580 |
| 581 | |
| 582 void LayerWidget::ResetChangedLayers() | |
| 583 { | |
| 584 changedLayers_.resize(layers_.size()); | |
| 585 | |
| 586 for (size_t i = 0; i < changedLayers_.size(); i++) | |
| 587 { | |
| 588 changedLayers_[i] = false; | |
| 589 } | |
| 590 } | |
| 591 | |
| 592 | |
| 593 void LayerWidget::UpdateContent() | |
| 594 { | |
| 595 assert(changedLayers_.size() <= layers_.size()); | |
| 596 | |
| 597 for (size_t i = 0; i < changedLayers_.size(); i++) | |
| 598 { | |
| 599 if (changedLayers_[i]) | |
| 600 { | |
| 601 layers_[i]->ScheduleLayerCreation(slice_); | |
| 602 } | |
| 603 } | |
| 604 | |
| 605 ResetChangedLayers(); | |
| 606 } | |
| 66 | 607 } |