comparison OrthancCppClient/Instance.h @ 0:ebc1e38ef615

initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 01 Jun 2015 09:47:32 +0200
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1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2015 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 <string>
36 #include <json/value.h>
37
38 #include "OrthancClientException.h"
39 #include "../Core/IDynamicObject.h"
40 #include "../Core/ImageFormats/PngReader.h"
41
42 namespace OrthancClient
43 {
44 class OrthancConnection;
45
46 /**
47 * {summary}{Connection to an instance stored in %Orthanc.}
48 * {description}{This class encapsulates a connection to an image instance
49 * from a remote instance of %Orthanc.}
50 **/
51 class LAAW_API Instance : public Orthanc::IDynamicObject
52 {
53 private:
54 const OrthancConnection& connection_;
55 std::string id_;
56 Json::Value tags_;
57 std::auto_ptr<Orthanc::PngReader> reader_;
58 Orthanc::ImageExtractionMode mode_;
59 std::auto_ptr<std::string> dicom_;
60 std::string content_;
61
62 void DownloadImage();
63
64 void DownloadDicom();
65
66 public:
67 /**
68 * {summary}{Create a connection to some image instance.}
69 * {param}{connection The remote instance of %Orthanc.}
70 * {param}{id The %Orthanc identifier of the image instance.}
71 **/
72 Instance(const OrthancConnection& connection,
73 const char* id);
74
75
76 /**
77 * {summary}{Get the %Orthanc identifier of this identifier.}
78 * {returns}{The identifier.}
79 **/
80 const char* GetId() const
81 {
82 return id_.c_str();
83 }
84
85
86 /**
87 * {summary}{Set the extraction mode for the 2D image corresponding to this instance.}
88 * {param}{mode The extraction mode.}
89 **/
90 void SetImageExtractionMode(Orthanc::ImageExtractionMode mode);
91
92 /**
93 * {summary}{Get the extraction mode for the 2D image corresponding to this instance.}
94 * {returns}{The extraction mode.}
95 **/
96 Orthanc::ImageExtractionMode GetImageExtractionMode() const
97 {
98 return mode_;
99 }
100
101
102 /**
103 * {summary}{Get the string value of some DICOM tag of this instance.}
104 * {param}{tag The name of the tag of interest.}
105 * {returns}{The value of the tag.}
106 **/
107 const char* GetTagAsString(const char* tag) const;
108
109 /**
110 * {summary}{Get the floating point value that is stored in some DICOM tag of this instance.}
111 * {param}{tag The name of the tag of interest.}
112 * {returns}{The value of the tag.}
113 **/
114 float GetTagAsFloat(const char* tag) const;
115
116 /**
117 * {summary}{Get the integer value that is stored in some DICOM tag of this instance.}
118 * {param}{tag The name of the tag of interest.}
119 * {returns}{The value of the tag.}
120 **/
121 int32_t GetTagAsInt(const char* tag) const;
122
123
124 /**
125 * {summary}{Get the width of the 2D image.}
126 * {description}{Get the width of the 2D image that is encoded by this DICOM instance.}
127 * {returns}{The width.}
128 **/
129 uint32_t GetWidth();
130
131 /**
132 * {summary}{Get the height of the 2D image.}
133 * {description}{Get the height of the 2D image that is encoded by this DICOM instance.}
134 * {returns}{The height.}
135 **/
136 uint32_t GetHeight();
137
138 /**
139 * {summary}{Get the number of bytes between two lines of the image (pitch).}
140 * {description}{Get the number of bytes between two lines of the image in the memory buffer returned by GetBuffer(). This value depends on the extraction mode for the image.}
141 * {returns}{The pitch.}
142 **/
143 uint32_t GetPitch();
144
145 /**
146 * {summary}{Get the format of the pixels of the 2D image.}
147 * {description}{Return the memory layout that is used for the 2D image that is encoded by this DICOM instance. This value depends on the extraction mode for the image.}
148 * {returns}{The pixel format.}
149 **/
150 Orthanc::PixelFormat GetPixelFormat();
151
152 /**
153 * {summary}{Access the memory buffer in which the raw pixels of the 2D image are stored.}
154 * {returns}{A pointer to the memory buffer.}
155 **/
156 const void* GetBuffer();
157
158 /**
159 * {summary}{Access the memory buffer in which the raw pixels of some line of the 2D image are stored.}
160 * {param}{y The line of interest.}
161 * {returns}{A pointer to the memory buffer.}
162 **/
163 const void* GetBuffer(uint32_t y);
164
165 /**
166 * {summary}{Get the size of the DICOM file corresponding to this instance.}
167 * {returns}{The file size.}
168 **/
169 const uint64_t GetDicomSize();
170
171 /**
172 * {summary}{Get a pointer to the content of the DICOM file corresponding to this instance.}
173 * {returns}{The DICOM file.}
174 **/
175 const void* GetDicom();
176
177 /**
178 * {summary}{Discard the downloaded 2D image, so as to make room in memory.}
179 **/
180 void DiscardImage();
181
182 /**
183 * {summary}{Discard the downloaded DICOM file, so as to make room in memory.}
184 **/
185 void DiscardDicom();
186
187 LAAW_API_INTERNAL void SplitVectorOfFloats(std::vector<float>& target,
188 const char* tag);
189
190 /**
191 * {summary}{Load a raw tag from the DICOM file.}
192 * {param}{path The path to the tag of interest (e.g. "0020-000d").}
193 **/
194 void LoadTagContent(const char* path);
195
196 /**
197 * {summary}{Return the value of the raw tag that was loaded by LoadContent.}
198 * {returns}{The tag value.}
199 **/
200 const char* GetLoadedTagContent() const;
201 };
202 }