annotate Framework/Toolbox/MessagingToolbox.cpp @ 118:a4d0b6c82b29 wasm

using Orthanc::DicomMap instead of OrthancPlugins::DicomDatasetReader
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 02 Oct 2017 14:31:26 +0200
parents 2eca030792aa
children ba83e38cf3ff
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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7207a407bcd8 shared copyright with osimis
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5 * Copyright (C) 2017 Osimis, Belgium
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6 *
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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 Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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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 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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21
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22 #include "MessagingToolbox.h"
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23
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24 #include <Core/Images/Image.h>
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25 #include <Core/Images/ImageProcessing.h>
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26 #include <Core/Images/JpegReader.h>
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27 #include <Core/Images/PngReader.h>
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28 #include <Core/OrthancException.h>
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29 #include <Core/Toolbox.h>
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30 #include <Core/Logging.h>
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32 #include <boost/lexical_cast.hpp>
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33 #include <json/reader.h>
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34
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35 namespace OrthancStone
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36 {
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37 namespace MessagingToolbox
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38 {
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39 static bool ParseVersion(std::string& version,
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40 unsigned int& major,
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41 unsigned int& minor,
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42 unsigned int& patch,
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43 const Json::Value& info)
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44 {
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45 if (info.type() != Json::objectValue ||
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46 !info.isMember("Version") ||
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47 info["Version"].type() != Json::stringValue)
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48 {
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49 return false;
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50 }
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51
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52 version = info["Version"].asString();
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53 if (version == "mainline")
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54 {
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55 // Some arbitrary high values Orthanc versions will never reach ;)
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56 major = 999;
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57 minor = 999;
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58 patch = 999;
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59 return true;
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60 }
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61
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62 std::vector<std::string> tokens;
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63 Orthanc::Toolbox::TokenizeString(tokens, version, '.');
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64
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65 if (tokens.size() != 2 &&
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66 tokens.size() != 3)
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67 {
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68 return false;
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69 }
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70
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71 int a, b, c;
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72 try
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73 {
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74 a = boost::lexical_cast<int>(tokens[0]);
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75 b = boost::lexical_cast<int>(tokens[1]);
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77 if (tokens.size() == 3)
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78 {
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79 c = boost::lexical_cast<int>(tokens[2]);
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80 }
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81 else
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82 {
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83 c = 0;
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84 }
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85 }
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86 catch (boost::bad_lexical_cast&)
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87 {
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88 return false;
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89 }
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90
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91 if (a < 0 ||
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92 b < 0 ||
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93 c < 0)
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94 {
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95 return false;
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96 }
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97 else
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98 {
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99 major = static_cast<unsigned int>(a);
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100 minor = static_cast<unsigned int>(b);
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101 patch = static_cast<unsigned int>(c);
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102 return true;
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103 }
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104 }
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105
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106
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107 bool ParseJson(Json::Value& target,
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108 const void* content,
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109 size_t size)
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110 {
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111 Json::Reader reader;
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112 return reader.parse(reinterpret_cast<const char*>(content),
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113 reinterpret_cast<const char*>(content) + size,
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114 target);
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115 }
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116
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117
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118 static void ParseJsonException(Json::Value& target,
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119 const std::string& source)
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120 {
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121 Json::Reader reader;
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122 if (!reader.parse(source, target))
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123 {
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124 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
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125 }
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126 }
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127
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128
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129 void RestApiGet(Json::Value& target,
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130 OrthancPlugins::IOrthancConnection& orthanc,
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131 const std::string& uri)
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132 {
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133 std::string tmp;
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134 orthanc.RestApiGet(tmp, uri);
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135 ParseJsonException(target, tmp);
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136 }
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137
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138
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139 void RestApiPost(Json::Value& target,
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140 OrthancPlugins::IOrthancConnection& orthanc,
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141 const std::string& uri,
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142 const std::string& body)
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143 {
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144 std::string tmp;
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145 orthanc.RestApiPost(tmp, uri, body);
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146 ParseJsonException(target, tmp);
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147 }
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148
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149
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150 bool HasWebViewerInstalled(OrthancPlugins::IOrthancConnection& orthanc)
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151 {
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152 try
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153 {
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154 Json::Value json;
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155 RestApiGet(json, orthanc, "/plugins/web-viewer");
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156 return json.type() == Json::objectValue;
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157 }
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158 catch (Orthanc::OrthancException&)
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159 {
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160 return false;
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parents:
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161 }
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162 }
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163
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164
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165 bool CheckOrthancVersion(OrthancPlugins::IOrthancConnection& orthanc)
0
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166 {
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167 Json::Value json;
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168 std::string version;
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169 unsigned int major, minor, patch;
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170
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171 try
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172 {
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173 RestApiGet(json, orthanc, "/system");
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174 }
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175 catch (Orthanc::OrthancException&)
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176 {
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177 LOG(ERROR) << "Cannot connect to your Orthanc server";
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178 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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179 }
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180
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181 if (!ParseVersion(version, major, minor, patch, json))
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182 {
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183 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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184 }
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185
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186 LOG(WARNING) << "Version of the Orthanc core (must be above 1.1.0): " << version;
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187
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188 // Stone is only compatible with Orthanc >= 1.1.0, otherwise deadlocks might occur
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189 if (major < 1 ||
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190 (major == 1 && minor < 1))
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191 {
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192 return false;
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193 }
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194
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195 try
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196 {
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197 RestApiGet(json, orthanc, "/plugins/web-viewer");
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198 }
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199 catch (Orthanc::OrthancException&)
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200 {
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201 // The Web viewer is not installed, this is OK
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202 LOG(WARNING) << "The Web viewer plugin is not installed, progressive download is disabled";
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203 return true;
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204 }
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205
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206 if (!ParseVersion(version, major, minor, patch, json))
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207 {
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208 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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209 }
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210
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211 LOG(WARNING) << "Version of the Web viewer plugin (must be above 2.2): " << version;
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212
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213 return (major >= 3 ||
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214 (major == 2 && minor >= 2));
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215 }
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216
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217
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diff changeset
218 Orthanc::ImageAccessor* DecodeFrame(OrthancPlugins::IOrthancConnection& orthanc,
0
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219 const std::string& instance,
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220 unsigned int frame,
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221 Orthanc::PixelFormat targetFormat)
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222 {
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223 std::string uri = ("instances/" + instance + "/frames/" +
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224 boost::lexical_cast<std::string>(frame));
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225
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226 std::string compressed;
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227
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228 switch (targetFormat)
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229 {
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230 case Orthanc::PixelFormat_RGB24:
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231 orthanc.RestApiGet(compressed, uri + "/preview");
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232 break;
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233
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234 case Orthanc::PixelFormat_Grayscale16:
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235 orthanc.RestApiGet(compressed, uri + "/image-uint16");
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236 break;
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237
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238 case Orthanc::PixelFormat_SignedGrayscale16:
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239 orthanc.RestApiGet(compressed, uri + "/image-int16");
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240 break;
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241
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242 default:
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243 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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244 }
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245
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246 std::auto_ptr<Orthanc::PngReader> result(new Orthanc::PngReader);
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247 result->ReadFromMemory(compressed);
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248
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249 if (targetFormat == Orthanc::PixelFormat_SignedGrayscale16)
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diff changeset
250 {
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diff changeset
251 if (result->GetFormat() == Orthanc::PixelFormat_Grayscale16)
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
252 {
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253 result->SetFormat(Orthanc::PixelFormat_SignedGrayscale16);
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parents:
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254 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
255 else
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diff changeset
256 {
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257 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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258 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
259 }
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260
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261 return result.release();
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parents:
diff changeset
262 }
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parents:
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263
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264
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diff changeset
265 Orthanc::ImageAccessor* DecodeJpegFrame(OrthancPlugins::IOrthancConnection& orthanc,
0
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266 const std::string& instance,
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267 unsigned int frame,
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diff changeset
268 unsigned int quality,
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269 Orthanc::PixelFormat targetFormat)
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parents:
diff changeset
270 {
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diff changeset
271 if (quality <= 0 ||
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272 quality > 100)
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parents:
diff changeset
273 {
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diff changeset
274 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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275 }
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parents:
diff changeset
276
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diff changeset
277 // This requires the official Web viewer plugin to be installed!
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278 std::string uri = ("web-viewer/instances/jpeg" +
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279 boost::lexical_cast<std::string>(quality) +
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280 "-" + instance + "_" +
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281 boost::lexical_cast<std::string>(frame));
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282
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283 Json::Value encoded;
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284 RestApiGet(encoded, orthanc, uri);
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285
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diff changeset
286 if (encoded.type() != Json::objectValue ||
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287 !encoded.isMember("Orthanc") ||
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288 encoded["Orthanc"].type() != Json::objectValue)
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diff changeset
289 {
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diff changeset
290 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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parents:
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291 }
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diff changeset
292
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293 Json::Value& info = encoded["Orthanc"];
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parents:
diff changeset
294 if (!info.isMember("PixelData") ||
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parents:
diff changeset
295 !info.isMember("Stretched") ||
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
296 !info.isMember("Compression") ||
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diff changeset
297 info["Compression"].type() != Json::stringValue ||
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diff changeset
298 info["PixelData"].type() != Json::stringValue ||
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diff changeset
299 info["Stretched"].type() != Json::booleanValue ||
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300 info["Compression"].asString() != "Jpeg")
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parents:
diff changeset
301 {
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parents:
diff changeset
302 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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parents:
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303 }
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parents:
diff changeset
304
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parents:
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305 bool isSigned = false;
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diff changeset
306 bool isStretched = info["Stretched"].asBool();
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parents:
diff changeset
307
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parents:
diff changeset
308 if (info.isMember("IsSigned"))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
309 {
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
310 if (info["IsSigned"].type() != Json::booleanValue)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
311 {
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parents:
diff changeset
312 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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parents:
diff changeset
313 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
314 else
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parents:
diff changeset
315 {
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Sebastien Jodogne <s.jodogne@gmail.com>
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316 isSigned = info["IsSigned"].asBool();
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317 }
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318 }
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319
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320 std::string jpeg;
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321 Orthanc::Toolbox::DecodeBase64(jpeg, info["PixelData"].asString());
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322
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323 std::auto_ptr<Orthanc::JpegReader> reader(new Orthanc::JpegReader);
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324 reader->ReadFromMemory(jpeg);
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325
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326 if (reader->GetFormat() == Orthanc::PixelFormat_RGB24) // This is a color image
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327 {
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328 if (targetFormat != Orthanc::PixelFormat_RGB24)
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329 {
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330 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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331 }
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332
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333 if (isSigned || isStretched)
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334 {
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335 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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336 }
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337 else
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338 {
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339 return reader.release();
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340 }
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341 }
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342
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343 if (reader->GetFormat() != Orthanc::PixelFormat_Grayscale8)
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344 {
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345 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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346 }
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347
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348 if (!isStretched)
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349 {
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350 if (targetFormat != reader->GetFormat())
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351 {
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352 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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353 }
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354
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355 return reader.release();
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356 }
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357
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358 int32_t stretchLow = 0;
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359 int32_t stretchHigh = 0;
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360
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361 if (!info.isMember("StretchLow") ||
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362 !info.isMember("StretchHigh") ||
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363 info["StretchLow"].type() != Json::intValue ||
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364 info["StretchHigh"].type() != Json::intValue)
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365 {
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366 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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367 }
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368
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369 stretchLow = info["StretchLow"].asInt();
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370 stretchHigh = info["StretchHigh"].asInt();
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371
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372 if (stretchLow < -32768 ||
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373 stretchHigh > 65535 ||
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374 (stretchLow < 0 && stretchHigh > 32767))
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375 {
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376 // This range cannot be represented with a uint16_t or an int16_t
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377 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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378 }
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379
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380 // Decode a grayscale JPEG 8bpp image coming from the Web viewer
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381 std::auto_ptr<Orthanc::ImageAccessor> image
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382 (new Orthanc::Image(targetFormat, reader->GetWidth(), reader->GetHeight(), false));
0
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383
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384 float scaling = static_cast<float>(stretchHigh - stretchLow) / 255.0f;
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385 float offset = static_cast<float>(stretchLow) / scaling;
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386
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387 Orthanc::ImageProcessing::Convert(*image, *reader);
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388 Orthanc::ImageProcessing::ShiftScale(*image, offset, scaling);
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389
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390 #if 0
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391 /*info.removeMember("PixelData");
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392 std::cout << info.toStyledString();*/
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393
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394 int64_t a, b;
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395 Orthanc::ImageProcessing::GetMinMaxValue(a, b, *image);
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396 std::cout << stretchLow << "->" << stretchHigh << " = " << a << "->" << b << std::endl;
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397 #endif
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398
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399 return image.release();
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400 }
118
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401
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402
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403 static void AddTag(Orthanc::DicomMap& target,
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404 const OrthancPlugins::IDicomDataset& source,
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405 const Orthanc::DicomTag& tag)
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406 {
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407 OrthancPlugins::DicomTag key(tag.GetGroup(), tag.GetElement());
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408
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409 std::string value;
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410 if (source.GetStringValue(value, key))
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411 {
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412 target.SetValue(tag, value, false);
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413 }
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414 }
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415
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416
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417 void ConvertDataset(Orthanc::DicomMap& target,
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418 const OrthancPlugins::IDicomDataset& source)
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419 {
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420 target.Clear();
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421
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422 AddTag(target, source, Orthanc::DICOM_TAG_BITS_ALLOCATED);
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423 AddTag(target, source, Orthanc::DICOM_TAG_BITS_STORED);
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424 AddTag(target, source, Orthanc::DICOM_TAG_COLUMNS);
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425 AddTag(target, source, Orthanc::DICOM_TAG_FRAME_INCREMENT_POINTER);
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426 AddTag(target, source, Orthanc::DICOM_TAG_GRID_FRAME_OFFSET_VECTOR);
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427 AddTag(target, source, Orthanc::DICOM_TAG_HIGH_BIT);
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428 AddTag(target, source, Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT);
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429 AddTag(target, source, Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT);
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430 AddTag(target, source, Orthanc::DICOM_TAG_NUMBER_OF_FRAMES);
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431 AddTag(target, source, Orthanc::DICOM_TAG_PHOTOMETRIC_INTERPRETATION);
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432 AddTag(target, source, Orthanc::DICOM_TAG_PIXEL_REPRESENTATION);
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433 AddTag(target, source, Orthanc::DICOM_TAG_PIXEL_SPACING);
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434 AddTag(target, source, Orthanc::DICOM_TAG_PLANAR_CONFIGURATION);
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435 AddTag(target, source, Orthanc::DICOM_TAG_RESCALE_INTERCEPT);
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436 AddTag(target, source, Orthanc::DICOM_TAG_RESCALE_SLOPE);
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437 AddTag(target, source, Orthanc::DICOM_TAG_ROWS);
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438 AddTag(target, source, Orthanc::DICOM_TAG_SAMPLES_PER_PIXEL);
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439 AddTag(target, source, Orthanc::DICOM_TAG_SLICE_THICKNESS);
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440 AddTag(target, source, Orthanc::DICOM_TAG_SOP_CLASS_UID);
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441 AddTag(target, source, Orthanc::DICOM_TAG_WINDOW_CENTER);
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442 AddTag(target, source, Orthanc::DICOM_TAG_WINDOW_WIDTH);
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diff changeset
443 }
0
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parents:
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444 }
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445 }