Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Messages/ObserverBase.h @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Messages/ObserverBase.h@30deba7bc8e2 |
children | 8563ea5d8ae4 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancStone/Sources/Messages/ObserverBase.h Tue Jul 07 16:21:02 2020 +0200 @@ -0,0 +1,68 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2020 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/>. + **/ + + +#pragma once + +#include "ICallable.h" +#include "IObserver.h" +#include "IObservable.h" + +#include <OrthancException.h> + +#include <boost/enable_shared_from_this.hpp> + +namespace OrthancStone +{ + template <typename TObserver> + class ObserverBase : + public IObserver, + public boost::enable_shared_from_this<TObserver> + { + public: + boost::shared_ptr<TObserver> GetSharedObserver() + { + try + { + return this->shared_from_this(); + } + catch (boost::bad_weak_ptr&) + { + throw Orthanc::OrthancException( + Orthanc::ErrorCode_InternalError, + "Cannot get a shared pointer to an observer from its constructor, " + "or the observer is not created as a shared pointer"); + } + } + + template <typename TMessage> + ICallable* CreateCallable(void (TObserver::* MemberMethod) (const TMessage&)) + { + return new Callable<TObserver, TMessage>(GetSharedObserver(), MemberMethod); + } + + template <typename TMessage> + void Register(IObservable& observable, + void (TObserver::* MemberMethod) (const TMessage&)) + { + observable.RegisterCallable(CreateCallable(MemberMethod)); + } + }; +}