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cxRepManager.h
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
5 All rights reserved.
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7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
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10 1. Redistributions of source code must retain the above copyright notice,
11  this list of conditions and the following disclaimer.
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31 =========================================================================*/
32 
33 #ifndef CXREPMANAGER_H_
34 #define CXREPMANAGER_H_
35 
36 #include "org_custusx_core_view_Export.h"
37 
38 #include <QObject>
39 #include <map>
40 #include <vector>
41 #include "cxForwardDeclarations.h"
42 
43 namespace cx
44 {
45 typedef boost::shared_ptr<class Rep> RepPtr;
46 }
47 
48 namespace cx
49 {
50 
51 typedef std::map<QString, RepPtr> RepMap;
52 typedef std::map<QString, VolumetricBaseRepPtr> VolumetricRepMap;
53 
54 class Reporter;
55 
72 class org_custusx_core_view_EXPORT RepManager: public QObject
73 {
74 Q_OBJECT
75 
76 public:
77  static RepManager* getInstance();
78  static void destroyInstance();
79 
92  template<class REP>
93  boost::shared_ptr<REP> getCachedRep(QString uid = "")
94  {
95  // look for existing value:
96  for (RepMultiMap::iterator iter = mRepCache.begin(); iter != mRepCache.end(); ++iter)
97  {
98  if (iter->first != uid)
99  continue;
100  int uc = iter->second.use_count();
101  if (uc >1)
102  {
103 // std::cout << "cached rep in use: " << uid.toStdString() << ", use count: " << uc << std::endl;
104  continue;
105  }
106 
107  boost::shared_ptr<REP> retval = boost::dynamic_pointer_cast<REP>(iter->second);
108  if (retval)
109  {
110 // std::cout << "reusing cached rep: " << uid.toStdString() << ", use count: " << uc << std::endl;
111  return retval;
112  }
113  }
114 
115  // create new value, store and return:
116  boost::shared_ptr<REP> retval = REP::New(uid);
117  mRepCache.insert(std::make_pair(uid, retval));
118 
119  return retval;
120  }
121 
122 protected:
124 
125  typedef std::multimap<QString, RepPtr> RepMultiMap;
127 
128 private:
129  RepManager();
130  virtual ~RepManager();
131  RepManager(RepManager const&);
132  RepManager& operator=(RepManager const&);
133 };
134 
135 
139 } //namespace cx
140 
141 #endif /* CXREPMANAGER_H_ */
std::map< QString, RepPtr > RepMap
Definition: cxRepManager.h:51
Rep caching and utilities.
Definition: cxRepManager.h:72
static RepManager * mTheInstance
the only instance of this class
Definition: cxRepManager.h:123
boost::shared_ptr< REP > getCachedRep(QString uid="")
Definition: cxRepManager.h:93
std::multimap< QString, RepPtr > RepMultiMap
Definition: cxRepManager.h:125
std::map< QString, VolumetricBaseRepPtr > VolumetricRepMap
Definition: cxRepManager.h:52
RepMultiMap mRepCache
Definition: cxRepManager.h:126
boost::shared_ptr< class Rep > RepPtr
Definition: cxRepManager.h:45