comparison OrthancStone/Sources/Viewport/ViewportLocker.h @ 1973:596f4752fa42

added ViewportLocker
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 28 Oct 2022 16:23:18 +0200
parents
children b31e494e34c5
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1972:9c0adcc8feec 1973:596f4752fa42
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
7 *
8 * This program is free software: you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation, either version 3 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this program. If not, see
20 * <http://www.gnu.org/licenses/>.
21 **/
22
23
24 #pragma once
25
26 #include "IViewport.h"
27
28 namespace OrthancStone
29 {
30 class ViewportLocker : public boost::noncopyable
31 {
32 private:
33 boost::shared_ptr<IViewport> lock1_;
34 std::unique_ptr<IViewport::ILock> lock2_;
35
36 IViewport::ILock& GetLock() const;
37
38 public:
39 ViewportLocker(IViewport& viewport) :
40 lock2_(viewport.Lock())
41 {
42 }
43
44 ViewportLocker(boost::weak_ptr<IViewport> viewport);
45
46 bool IsValid() const
47 {
48 return (lock2_.get() != NULL);
49 }
50
51 ViewportController& GetController() const
52 {
53 return GetLock().GetController();
54 }
55
56 void Invalidate() const
57 {
58 return GetLock().Invalidate();
59 }
60 };
61 }