Mercurial > hg > orthanc-webviewer
annotate Plugin/ViewerToolbox.cpp @ 159:5dc54316d68b
shared copyright with osimis
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 04 Jan 2017 16:41:43 +0100 |
| parents | 3809121c3290 |
| children | 330ecfd96aec |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 122 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 0 | 4 * Department, University Hospital of Liege, Belgium |
|
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5 * Copyright (C) 2017 Osimis, Belgium |
| 0 | 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 "ViewerToolbox.h" | |
| 23 | |
| 26 | 24 #include "../Orthanc/Core/OrthancException.h" |
| 25 #include "../Orthanc/Core/Toolbox.h" | |
| 0 | 26 |
| 27 #include <json/reader.h> | |
| 28 #include <stdexcept> | |
| 29 #include <boost/lexical_cast.hpp> | |
| 30 #include <sys/stat.h> | |
| 31 | |
| 32 namespace OrthancPlugins | |
| 33 { | |
| 34 bool GetStringFromOrthanc(std::string& content, | |
| 35 OrthancPluginContext* context, | |
| 36 const std::string& uri) | |
| 37 { | |
| 38 OrthancPluginMemoryBuffer answer; | |
| 39 | |
| 40 if (OrthancPluginRestApiGet(context, &answer, uri.c_str())) | |
| 41 { | |
| 42 return false; | |
| 43 } | |
| 44 | |
| 45 if (answer.size) | |
| 46 { | |
| 47 try | |
| 48 { | |
| 49 content.assign(reinterpret_cast<const char*>(answer.data), answer.size); | |
| 50 } | |
| 51 catch (std::bad_alloc&) | |
| 52 { | |
| 53 OrthancPluginFreeMemoryBuffer(context, &answer); | |
| 79 | 54 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); |
| 0 | 55 } |
| 56 } | |
| 57 | |
| 58 OrthancPluginFreeMemoryBuffer(context, &answer); | |
| 59 return true; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 bool GetJsonFromOrthanc(Json::Value& json, | |
| 64 OrthancPluginContext* context, | |
| 65 const std::string& uri) | |
| 66 { | |
| 67 OrthancPluginMemoryBuffer answer; | |
| 68 | |
| 69 if (OrthancPluginRestApiGet(context, &answer, uri.c_str())) | |
| 70 { | |
| 71 return false; | |
| 72 } | |
| 73 | |
| 74 if (answer.size) | |
| 75 { | |
| 76 try | |
| 77 { | |
| 78 const char* data = reinterpret_cast<const char*>(answer.data); | |
| 79 Json::Reader reader; | |
| 80 if (!reader.parse(data, data + answer.size, json, | |
| 81 false /* don't collect comments */)) | |
| 82 { | |
| 83 return false; | |
| 84 } | |
| 85 } | |
| 86 catch (std::runtime_error&) | |
| 87 { | |
| 88 OrthancPluginFreeMemoryBuffer(context, &answer); | |
| 89 return false; | |
| 90 } | |
| 91 } | |
| 92 | |
| 93 OrthancPluginFreeMemoryBuffer(context, &answer); | |
| 94 return true; | |
| 95 } | |
| 96 | |
| 97 | |
| 98 | |
| 99 | |
| 100 bool TokenizeVector(std::vector<float>& result, | |
| 101 const std::string& value, | |
| 102 unsigned int expectedSize) | |
| 103 { | |
| 104 std::vector<std::string> tokens; | |
| 105 Orthanc::Toolbox::TokenizeString(tokens, value, '\\'); | |
| 106 | |
| 107 if (tokens.size() != expectedSize) | |
| 108 { | |
| 109 return false; | |
| 110 } | |
| 111 | |
| 112 result.resize(tokens.size()); | |
| 113 | |
| 114 for (size_t i = 0; i < tokens.size(); i++) | |
| 115 { | |
| 116 try | |
| 117 { | |
| 118 result[i] = boost::lexical_cast<float>(tokens[i]); | |
| 119 } | |
| 120 catch (boost::bad_lexical_cast&) | |
| 121 { | |
| 122 return false; | |
| 123 } | |
| 124 } | |
| 125 | |
| 126 return true; | |
| 127 } | |
| 128 | |
| 129 | |
| 79 | 130 void CompressUsingDeflate(std::string& compressed, |
| 131 OrthancPluginContext* context, | |
| 0 | 132 const void* uncompressed, |
| 79 | 133 size_t uncompressedSize) |
| 0 | 134 { |
| 79 | 135 OrthancPluginMemoryBuffer tmp; |
| 136 | |
| 137 OrthancPluginErrorCode code = OrthancPluginBufferCompression( | |
| 138 context, &tmp, uncompressed, uncompressedSize, | |
| 139 OrthancPluginCompressionType_Zlib, 0 /*compress*/); | |
| 140 | |
| 141 if (code != OrthancPluginErrorCode_Success) | |
| 0 | 142 { |
| 79 | 143 throw Orthanc::OrthancException(static_cast<Orthanc::ErrorCode>(code)); |
| 0 | 144 } |
| 145 | |
| 79 | 146 try |
| 147 { | |
| 148 compressed.assign(reinterpret_cast<const char*>(tmp.data), tmp.size); | |
| 149 } | |
| 150 catch (...) | |
| 151 { | |
| 152 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); | |
| 153 } | |
| 0 | 154 |
| 79 | 155 OrthancPluginFreeMemoryBuffer(context, &tmp); |
| 0 | 156 } |
| 157 | |
| 158 | |
| 159 const char* GetMimeType(const std::string& path) | |
| 160 { | |
| 161 size_t dot = path.find_last_of('.'); | |
| 162 | |
| 163 std::string extension = (dot == std::string::npos) ? "" : path.substr(dot); | |
| 164 std::transform(extension.begin(), extension.end(), extension.begin(), tolower); | |
| 165 | |
| 166 if (extension == ".html") | |
| 167 { | |
| 168 return "text/html"; | |
| 169 } | |
| 170 else if (extension == ".css") | |
| 171 { | |
| 172 return "text/css"; | |
| 173 } | |
| 174 else if (extension == ".js") | |
| 175 { | |
| 176 return "application/javascript"; | |
| 177 } | |
| 178 else if (extension == ".gif") | |
| 179 { | |
| 180 return "image/gif"; | |
| 181 } | |
| 182 else if (extension == ".svg") | |
| 183 { | |
| 184 return "image/svg+xml"; | |
| 185 } | |
| 186 else if (extension == ".json") | |
| 187 { | |
| 188 return "application/json"; | |
| 189 } | |
| 190 else if (extension == ".xml") | |
| 191 { | |
| 192 return "application/xml"; | |
| 193 } | |
| 194 else if (extension == ".png") | |
| 195 { | |
| 196 return "image/png"; | |
| 197 } | |
| 198 else if (extension == ".jpg" || extension == ".jpeg") | |
| 199 { | |
| 200 return "image/jpeg"; | |
| 201 } | |
| 202 else | |
| 203 { | |
| 204 return "application/octet-stream"; | |
| 205 } | |
| 206 } | |
| 207 | |
| 208 | |
| 209 bool ReadConfiguration(Json::Value& configuration, | |
| 210 OrthancPluginContext* context) | |
| 211 { | |
|
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212 std::string s; |
| 0 | 213 |
| 214 { | |
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215 char* tmp = OrthancPluginGetConfiguration(context); |
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216 if (tmp == NULL) |
| 0 | 217 { |
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218 OrthancPluginLogError(context, "Error while retrieving the configuration from Orthanc"); |
| 0 | 219 return false; |
| 220 } | |
| 221 | |
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222 s.assign(tmp); |
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223 OrthancPluginFreeString(context, tmp); |
| 0 | 224 } |
| 225 | |
| 226 Json::Reader reader; | |
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227 if (reader.parse(s, configuration)) |
| 0 | 228 { |
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229 return true; |
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230 } |
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231 else |
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232 { |
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233 OrthancPluginLogError(context, "Unable to parse the configuration"); |
| 0 | 234 return false; |
| 235 } | |
| 236 } | |
| 237 | |
| 238 | |
| 239 std::string GetStringValue(const Json::Value& configuration, | |
| 240 const std::string& key, | |
| 241 const std::string& defaultValue) | |
| 242 { | |
| 243 if (configuration.type() != Json::objectValue || | |
| 244 !configuration.isMember(key) || | |
| 245 configuration[key].type() != Json::stringValue) | |
| 246 { | |
| 247 return defaultValue; | |
| 248 } | |
| 249 else | |
| 250 { | |
| 251 return configuration[key].asString(); | |
| 252 } | |
| 253 } | |
| 254 | |
| 255 | |
| 256 int GetIntegerValue(const Json::Value& configuration, | |
| 257 const std::string& key, | |
| 258 int defaultValue) | |
| 259 { | |
| 260 if (configuration.type() != Json::objectValue || | |
| 261 !configuration.isMember(key) || | |
| 262 configuration[key].type() != Json::intValue) | |
| 263 { | |
| 264 return defaultValue; | |
| 265 } | |
| 266 else | |
| 267 { | |
| 268 return configuration[key].asInt(); | |
| 269 } | |
| 270 } | |
| 271 | |
| 272 | |
| 79 | 273 OrthancPluginPixelFormat Convert(Orthanc::PixelFormat format) |
| 0 | 274 { |
| 79 | 275 switch (format) |
| 276 { | |
| 277 case Orthanc::PixelFormat_Grayscale16: | |
| 278 return OrthancPluginPixelFormat_Grayscale16; | |
| 279 | |
| 280 case Orthanc::PixelFormat_Grayscale8: | |
| 281 return OrthancPluginPixelFormat_Grayscale8; | |
| 282 | |
| 283 case Orthanc::PixelFormat_RGB24: | |
| 284 return OrthancPluginPixelFormat_RGB24; | |
| 285 | |
| 286 case Orthanc::PixelFormat_RGBA32: | |
| 287 return OrthancPluginPixelFormat_RGBA32; | |
| 288 | |
| 289 case Orthanc::PixelFormat_SignedGrayscale16: | |
| 290 return OrthancPluginPixelFormat_SignedGrayscale16; | |
| 291 | |
| 292 default: | |
| 293 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 294 } | |
| 295 } | |
| 296 | |
| 297 | |
| 298 Orthanc::PixelFormat Convert(OrthancPluginPixelFormat format) | |
| 299 { | |
| 300 switch (format) | |
| 0 | 301 { |
| 79 | 302 case OrthancPluginPixelFormat_Grayscale16: |
| 303 return Orthanc::PixelFormat_Grayscale16; | |
| 304 | |
| 305 case OrthancPluginPixelFormat_Grayscale8: | |
| 306 return Orthanc::PixelFormat_Grayscale8; | |
| 307 | |
| 308 case OrthancPluginPixelFormat_RGB24: | |
| 309 return Orthanc::PixelFormat_RGB24; | |
| 310 | |
| 311 case OrthancPluginPixelFormat_RGBA32: | |
| 312 return Orthanc::PixelFormat_RGBA32; | |
| 313 | |
| 314 case OrthancPluginPixelFormat_SignedGrayscale16: | |
| 315 return Orthanc::PixelFormat_SignedGrayscale16; | |
| 0 | 316 |
| 79 | 317 default: |
| 318 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 | |
| 323 void WriteJpegToMemory(std::string& result, | |
| 324 OrthancPluginContext* context, | |
| 325 const Orthanc::ImageAccessor& accessor, | |
| 326 uint8_t quality) | |
| 327 { | |
| 328 OrthancPluginMemoryBuffer tmp; | |
| 329 | |
| 330 OrthancPluginErrorCode code = OrthancPluginCompressJpegImage | |
| 331 (context, &tmp, Convert(accessor.GetFormat()), | |
| 332 accessor.GetWidth(), accessor.GetHeight(), accessor.GetPitch(), | |
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333 accessor.GetConstBuffer(), quality); |
| 79 | 334 |
| 335 if (code != OrthancPluginErrorCode_Success) | |
| 0 | 336 { |
| 79 | 337 throw Orthanc::OrthancException(static_cast<Orthanc::ErrorCode>(code)); |
| 0 | 338 } |
| 339 | |
| 79 | 340 try |
| 0 | 341 { |
| 79 | 342 result.assign(reinterpret_cast<const char*>(tmp.data), tmp.size); |
| 343 } | |
| 344 catch (...) | |
| 345 { | |
| 346 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory); | |
| 0 | 347 } |
| 348 | |
| 79 | 349 OrthancPluginFreeMemoryBuffer(context, &tmp); |
| 350 } | |
| 351 | |
| 352 | |
| 353 | |
| 354 ImageReader::ImageReader(OrthancPluginContext* context, | |
| 355 const std::string& image, | |
| 356 OrthancPluginImageFormat format) : context_(context) | |
| 357 { | |
| 358 image_ = OrthancPluginUncompressImage(context_, image.c_str(), image.size(), format); | |
| 359 | |
| 360 if (image_ == NULL) | |
| 0 | 361 { |
| 79 | 362 throw Orthanc::OrthancException(Orthanc::ErrorCode_CorruptedFile); |
| 0 | 363 } |
| 79 | 364 } |
| 0 | 365 |
| 366 | |
| 79 | 367 ImageReader::~ImageReader() |
| 368 { | |
| 369 OrthancPluginFreeImage(context_, image_); | |
| 370 } | |
| 371 | |
| 0 | 372 |
| 79 | 373 Orthanc::ImageAccessor ImageReader::GetAccessor() const |
| 374 { | |
| 375 Orthanc::ImageAccessor accessor; | |
| 0 | 376 |
| 79 | 377 accessor.AssignReadOnly(Convert(OrthancPluginGetImagePixelFormat(context_, image_)), |
| 378 OrthancPluginGetImageWidth(context_, image_), | |
| 379 OrthancPluginGetImageHeight(context_, image_), | |
| 380 OrthancPluginGetImagePitch(context_, image_), | |
| 381 OrthancPluginGetImageBuffer(context_, image_)); | |
| 382 | |
| 383 return accessor; | |
| 0 | 384 } |
| 385 } |