GDCM 2.2.1

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gdcmSubject.h
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1 /*=========================================================================
2
3 Program: GDCM (Grassroots DICOM). A DICOM library
4
5 Copyright (c) 2006-2011 Mathieu Malaterre
6 All rights reserved.
7 See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
8
9 This software is distributed WITHOUT ANY WARRANTY; without even
10 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
11 PURPOSE. See the above copyright notice for more information.
12
13 =========================================================================*/
14 #ifndef GDCMSUBJECT_H
15 #define GDCMSUBJECT_H
16
17 #include "gdcmObject.h"
18
19 namespace gdcm
20 {
21 class Event;
22 class Command;
23 class SubjectInternals;
28 class GDCM_EXPORT Subject : public Object
29 {
30 public:
31 Subject();
32 ~Subject();
33
42 unsigned long AddObserver(const Event & event, Command *);
43 unsigned long AddObserver(const Event & event, Command *) const;
44
50 Command* GetCommand(unsigned long tag);
51
53 void InvokeEvent( const Event & );
54
57 void InvokeEvent( const Event & ) const;
58
60 void RemoveObserver(unsigned long tag);
61
63 void RemoveAllObservers();
64
66 bool HasObserver( const Event & event ) const;
67
68 protected:
69
70 private:
71 SubjectInternals *Internals;
72 private:
73 };
74
75 } // end namespace gdcm
76
77 #endif //GDCMSUBJECT_H