Mercurial > hg > orthanc
diff OrthancCppClient/Instance.cpp @ 479:0cd977e94479
initial commit of the c++ client
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 16 Jul 2013 09:08:09 +0200 |
parents | |
children | 7f7a2d174acb |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancCppClient/Instance.cpp Tue Jul 16 09:08:09 2013 +0200 @@ -0,0 +1,224 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege, + * Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, either version 3 of the + * License, or (at your option) any later version. + * + * In addition, as a special exception, the copyright holders of this + * program give permission to link the code of its release with the + * OpenSSL project's "OpenSSL" library (or with modified versions of it + * that use the same license as the "OpenSSL" library), and distribute + * the linked executables. You must obey the GNU General Public License + * in all respects for all of the code used other than "OpenSSL". If you + * modify file(s) with this exception, you may extend this exception to + * your version of the file(s), but you are not obligated to do so. If + * you do not wish to do so, delete this exception statement from your + * version. If you delete this exception statement from all source files + * in the program, then also delete it here. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#include "Instance.h" + +#include "OrthancConnection.h" +#include "../Core/OrthancException.h" + +#include <boost/lexical_cast.hpp> + +namespace OrthancClient +{ + void Instance::DownloadImage() + { + if (reader_.get() == NULL) + { + const char* suffix; + switch (mode_) + { + case Orthanc::ImageExtractionMode_Preview: + suffix = "preview"; + break; + + case Orthanc::ImageExtractionMode_UInt8: + suffix = "image-uint8"; + break; + + case Orthanc::ImageExtractionMode_UInt16: + suffix = "image-uint16"; + break; + + case Orthanc::ImageExtractionMode_Int16: + suffix = "image-int16"; + break; + + default: + throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); + } + + Orthanc::HttpClient client(connection_.GetHttpClient()); + client.SetUrl(connection_.GetOrthancUrl() + "/instances/" + id_ + "/" + suffix); + std::string png; + + if (!client.Apply(png)) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); + } + + reader_.reset(new Orthanc::PngReader); + reader_->ReadFromMemory(png); + } + } + + Instance::Instance(const OrthancConnection& connection, + const std::string& id) : + connection_(connection), + id_(id), + mode_(Orthanc::ImageExtractionMode_Int16) + { + Orthanc::HttpClient client(connection_.GetHttpClient()); + + client.SetUrl(connection_.GetOrthancUrl() + "/instances/" + id_ + "/simplified-tags"); + Json::Value v; + if (!client.Apply(tags_)) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol); + } + } + + std::string Instance::GetTagAsString(const char* tag) + { + if (tags_.isMember(tag)) + { + return tags_[tag].asString(); + } + else + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_InexistentItem); + } + } + + float Instance::GetTagAsFloat(const char* tag) + { + std::string value = GetTagAsString(tag); + + try + { + return boost::lexical_cast<float>(value); + } + catch (boost::bad_lexical_cast) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); + } + } + + int Instance::GetTagAsInt(const char* tag) + { + std::string value = GetTagAsString(tag); + + try + { + return boost::lexical_cast<int>(value); + } + catch (boost::bad_lexical_cast) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); + } + } + + unsigned int Instance::GetWidth() + { + DownloadImage(); + return reader_->GetWidth(); + } + + unsigned int Instance::GetHeight() + { + DownloadImage(); + return reader_->GetHeight(); + } + + unsigned int Instance::GetPitch() + { + DownloadImage(); + return reader_->GetPitch(); + } + + Orthanc::PixelFormat Instance::GetPixelFormat() + { + DownloadImage(); + return reader_->GetFormat(); + } + + const void* Instance::GetBuffer() + { + DownloadImage(); + return reader_->GetBuffer(); + } + + const void* Instance::GetBuffer(unsigned int y) + { + DownloadImage(); + return reader_->GetBuffer(y); + } + + void Instance::DiscardImage() + { + reader_.reset(); + } + + + void Instance::SetImageExtractionMode(Orthanc::ImageExtractionMode mode) + { + if (mode_ == mode) + { + return; + } + + DiscardImage(); + mode_ = mode; + } + + + void Instance::SplitVectorOfFloats(std::vector<float>& target, + const char* tag) + { + const std::string value = GetTagAsString(tag); + + target.clear(); + + try + { + std::string tmp; + for (size_t i = 0; i < value.size(); i++) + { + if (value[i] == '\\') + { + target.push_back(boost::lexical_cast<float>(tmp)); + tmp.clear(); + } + else + { + tmp.push_back(value[i]); + } + } + + target.push_back(boost::lexical_cast<float>(tmp)); + } + catch (boost::bad_lexical_cast) + { + // Unable to parse the Image Orientation Patient. + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); + } + } +}