Mercurial > hg > orthanc-stone

annotate Framework/SmartLoader.cpp @ 266:c9cf95b49a86 am-2

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removed OrthancSlicesLoader::ISliceLoaderObserver; now using standard messages instead
author am@osimis.io
date Tue, 21 Aug 2018 18:14:22 +0200
parents 77fdab5b5d6e
children 89d02de83c03
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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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5 * Copyright (C) 2017-2018 Osimis S.A., 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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20
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21
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22 #include "SmartLoader.h"
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23 #include "Layers/OrthancFrameLayerSource.h"
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24 #include "Layers/OrthancFrameLayer.h"
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25
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26 namespace OrthancStone
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27 {
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28 SmartLoader::SmartLoader(MessageBroker& broker, IWebService& webService) :
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29 IObservable(broker),
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30 IObserver(broker),
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31 imageQuality_(SliceImageQuality_FullPam),
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32 webService_(webService)
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33 {}
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34
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35 void SmartLoader::HandleMessage(const IObservable& from, const IMessage& message)
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36 {
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37 switch (message.GetType()) {
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38 case MessageType_SliceGeometryReady:
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39 {
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40 const OrthancFrameLayerSource* layerSource=dynamic_cast<const OrthancFrameLayerSource*>(&from);
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41 // TODO keep track of objects that have been loaded already
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42 }; break;
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43 case MessageType_SliceImageReady:
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44 {
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45 const OrthancFrameLayerSource* layerSource=dynamic_cast<const OrthancFrameLayerSource*>(&from);
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46 // TODO keep track of objects that have been loaded already
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47 }; break;
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48 default:
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49 VLOG("unhandled message type" << message.GetType());
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50 }
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51
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52 // forward messages to its own observers
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53 IObservable::broker_.EmitMessage(from, IObservable::observers_, message);
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54 }
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55
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56 ILayerSource* SmartLoader::GetFrame(const std::string& instanceId, unsigned int frame)
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57 {
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58 // TODO: check if this frame has already been loaded or is already being loaded.
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59 // - if already loaded: create a "clone" that will emit the GeometryReady/ImageReady messages "immediately"
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60 // (it can not be immediate because Observers needs to register first and this is done after this method returns)
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61 // - if currently loading, we need to return an object that will observe the existing LayerSource and forward
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62 // the messages to its observables
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63 // in both cases, we must be carefull about objects lifecycle !!!
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64 std::auto_ptr<OrthancFrameLayerSource> layerSource (new OrthancFrameLayerSource(IObserver::broker_, webService_));
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65 layerSource->SetImageQuality(imageQuality_);
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66 layerSource->RegisterObserver(*this);
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67 layerSource->LoadFrame(instanceId, frame);
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68
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69 return layerSource.release();
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70 }
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71
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73 void PreloadStudy(const std::string studyId)
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74 {
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75 /* TODO */
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76 }
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78 void PreloadSeries(const std::string seriesId)
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79 {
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80 /* TODO */
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81 }
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83
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84 }