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pyWrapContext.h
1 //
2 // Copyright 2016 Pixar
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5 // with the following modification; you may not use this file except in
6 // compliance with the Apache License and the following modification to it:
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24 #ifndef TF_PYWRAPCONTEXT_H
25 #define TF_PYWRAPCONTEXT_H
26 
27 #include "pxr/pxr.h"
28 
29 #include "pxr/base/tf/singleton.h"
30 
31 #include <boost/noncopyable.hpp>
32 
33 #include <string>
34 #include <vector>
35 
36 PXR_NAMESPACE_OPEN_SCOPE
37 
38 // This is used internally by the Tf python wrapping infrastructure.
39 
40 class Tf_PyWrapContextManager : public boost::noncopyable {
41 
42  public:
43 
44  typedef Tf_PyWrapContextManager This;
45 
46  static This &GetInstance() {
48  }
49 
50  std::string GetCurrentContext() const {
51  return _contextStack.empty() ? std::string() : _contextStack.back();
52  }
53 
54  void PushContext(std::string const &ctx) {
55  _contextStack.push_back(ctx);
56  }
57 
58  void PopContext() {
59  _contextStack.pop_back();
60  }
61 
62  private:
63 
64  Tf_PyWrapContextManager();
65 
66  friend class TfSingleton<This>;
67 
68  std::vector<std::string> _contextStack;
69 };
70 
71 PXR_NAMESPACE_CLOSE_SCOPE
72 
73 #endif // TF_PYWRAPCONTEXT_H
Manage a single instance of an object (see.
Definition: singleton.h:122
static T & GetInstance()
Return a reference to an object of type T, creating it if necessary.
Definition: singleton.h:137