Mercurial > hg > orthanc-stone
view Framework/SmartLoader.cpp @ 262:77fdab5b5d6e am-2
cleanup + todos
author | am@osimis.io |
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date | Tue, 17 Jul 2018 18:28:12 +0200 |
parents | c887eddd48f1 |
children | c9cf95b49a86 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2018 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * 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 * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "SmartLoader.h" #include "Layers/OrthancFrameLayerSource.h" namespace OrthancStone { SmartLoader::SmartLoader(MessageBroker& broker, IWebService& webService) : IObservable(broker), IObserver(broker), imageQuality_(SliceImageQuality_FullPam), webService_(webService) {} void SmartLoader::HandleMessage(IObservable& from, const IMessage& message) { switch (message.GetType()) { case MessageType_SliceGeometryReady: // TODO keep track of objects that have been loaded already break; case MessageType_SliceImageReady: // TODO keep track of objects that have been loaded already break; default: VLOG("unhandled message type" << message.GetType()); } // forward messages to its own observers IObservable::broker_.EmitMessage(from, IObservable::observers_, message); } ILayerSource* SmartLoader::GetFrame(const std::string& instanceId, unsigned int frame) { // TODO: check if this frame has already been loaded or is already being loaded. // - if already loaded: create a "clone" that will emit the GeometryReady/ImageReady messages "immediately" // (it can not be immediate because Observers needs to register first and this is done after this method returns) // - if currently loading, we need to return an object that will observe the existing LayerSource and forward // the messages to its observables // in both cases, we must be carefull about objects lifecycle !!! std::auto_ptr<OrthancFrameLayerSource> layerSource (new OrthancFrameLayerSource(IObserver::broker_, webService_)); layerSource->SetImageQuality(imageQuality_); layerSource->RegisterObserver(*this); layerSource->LoadFrame(instanceId, frame); return layerSource.release(); } }