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comparison Framework/Volumes/VolumeImage.h @ 0:351ab0da0150

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initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 14 Oct 2016 15:34:11 +0200
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children 517c46f527cd
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-1:000000000000 0:351ab0da0150
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include "ISliceableVolume.h"
36 #include "ImageBuffer3D.h"
37 #include "../Toolbox/ISeriesLoader.h"
38 #include "../Toolbox/ObserversRegistry.h"
39 #include "../Messaging/MessagingToolbox.h"
40 #include "../Layers/ILayerRendererFactory.h"
41
42 #include <boost/thread.hpp>
43
44 namespace OrthancStone
45 {
46 class VolumeImage : public ISliceableVolume
47 {
48 public:
49 class IDownloadPolicy : public IThreadSafe
50 {
51 public:
52 virtual void Initialize(ImageBuffer3D& buffer,
53 ISeriesLoader& loader) = 0;
54
55 virtual void Finalize() = 0;
56
57 // Must return "true" if the thread has completed its task. Pay
58 // attention that this method can be invoked concurrently by
59 // several download threads.
60 virtual bool DownloadStep(bool& complete) = 0;
61
62 virtual bool IsFullQualityAxial(size_t slice) = 0;
63 };
64
65
66 private:
67 std::auto_ptr<ISeriesLoader> loader_;
68 std::auto_ptr<ImageBuffer3D> buffer_;
69 std::vector<boost::thread*> threads_;
70 bool started_;
71 bool continue_;
72 ObserversRegistry<ISliceableVolume> observers_;
73 bool loadingComplete_;
74 MessagingToolbox::Timestamp lastUpdate_;
75 std::auto_ptr<DicomDataset> referenceDataset_;
76 std::auto_ptr<IDownloadPolicy> policy_;
77
78 std::auto_ptr<ParallelSlices> axialGeometry_;
79 std::auto_ptr<ParallelSlices> coronalGeometry_;
80 std::auto_ptr<ParallelSlices> sagittalGeometry_;
81
82 void StoreUpdateTime();
83
84 void NotifyChange(bool force);
85
86 static void LoadThread(VolumeImage* that);
87
88 bool DetectProjection(VolumeProjection& projection,
89 bool& reverse,
90 const SliceGeometry& viewportSlice);
91
92 const ParallelSlices& GetGeometryInternal(VolumeProjection projection);
93
94 public:
95 VolumeImage(ISeriesLoader* loader); // Takes ownership
96
97 virtual ~VolumeImage();
98
99 void SetDownloadPolicy(IDownloadPolicy* policy); // Takes ownership
100
101 void SetThreadCount(size_t count);
102
103 size_t GetThreadCount() const
104 {
105 return threads_.size();
106 }
107
108 virtual void Register(IChangeObserver& observer);
109
110 virtual void Unregister(IChangeObserver& observer);
111
112 virtual void Start();
113
114 virtual void Stop();
115
116 ParallelSlices* GetGeometry(VolumeProjection projection,
117 bool reverse);
118
119 Vector GetVoxelDimensions(VolumeProjection projection)
120 {
121 return buffer_->GetVoxelDimensions(projection);
122 }
123
124 bool IsLoadingComplete() const
125 {
126 return loadingComplete_;
127 }
128
129 class LayerFactory : public ILayerRendererFactory
130 {
131 private:
132 VolumeImage& that_;
133
134 public:
135 LayerFactory(VolumeImage& that) :
136 that_(that)
137 {
138 }
139
140 virtual bool HasSourceVolume() const
141 {
142 return true;
143 }
144
145 virtual ISliceableVolume& GetSourceVolume() const
146 {
147 return that_;
148 }
149
150 virtual bool GetExtent(double& x1,
151 double& y1,
152 double& x2,
153 double& y2,
154 const SliceGeometry& viewportSlice);
155
156 virtual ILayerRenderer* CreateLayerRenderer(const SliceGeometry& viewportSlice);
157 };
158 };
159 }