ConfigPropertyObserver.cpp

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2018 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#include "MantidKernel/ConfigPropertyObserver.h"
#include "MantidPythonInterface/core/CallMethod.h"
#include "MantidPythonInterface/core/GlobalInterpreterLock.h"
#include <boost/python/class.hpp>
#include <boost/python/def.hpp>
#include <boost/python/pure_virtual.hpp>
 
using namespace boost::python;
using Mantid::Kernel::ConfigPropertyObserver;
using Mantid::PythonInterface::callMethod;
 
class ConfigPropertyObserverWrapper : public ConfigPropertyObserver {
public:
  ConfigPropertyObserverWrapper(PyObject *self, const std::string &propertyName)
      : ConfigPropertyObserver(propertyName), m_self(self) {}
 
  void onPropertyValueChanged(const std::string &newValue, const std::string &prevValue) override {
    callMethod<void>(m_self, "onPropertyValueChanged", newValue, prevValue);
  }
 
private:
  PyObject *m_self;
};
 
namespace boost::python {
template <> struct has_back_reference<ConfigPropertyObserverWrapper> : mpl::true_ {};
} // namespace boost::python
 
void export_ConfigPropertyObserver() {
  class_<ConfigPropertyObserverWrapper, boost::noncopyable>("ConfigPropertyObserver", init<std::string>())
      .def(init<std::string>())
      .def("onPropertyValueChanged", pure_virtual(&ConfigPropertyObserverWrapper::onPropertyValueChanged));
}