CPython.hpp

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/* -*- c++ -*- */

#ifndef __CPython_h__
#define __CPython_h__

#include <vector>
using std::vector;
#include <map>
using std::map;
#include <string>
using std::string;

#include <Python.h>

#include <QWidget>


struct module_data
{
  PyObject * modPtr;
  PyObject * dict;
};

//______________________________________________________________________________
class VPythonThreadLocker
{
public:
  VPythonThreadLocker()
  : _state(PyGILState_Ensure())
  {}

  ~VPythonThreadLocker() {
    PyGILState_Release(_state);
  }

private:
  PyGILState_STATE _state;
};

//______________________________________________________________________________
class CPython
{
 public:
  CPython(vector<string> & pathvec);
  ~CPython();

  static void   addPath(const string & path);
  static void   checkPyObj(const PyObject * const obj);

  static PyObject * getModule(const string & module);
  static PyObject * loadModule(const string & module);
  static void       printModules(void);
  static PyObject * getCurrentDict(void);
  static PyObject * getDict(const string & module);
  static void       setDict(PyObject * dict);
  static void       setDict(const string & module);
  static void       printDict(PyObject * dict = NULL);

  static PyObject * callFunction(PyObject *callable, PyObject *args);

  static QWidget *  createPyWidget(QWidget * parentWidget = NULL, PyObject * data = NULL);

 private:
  static PyThreadState * _mainThreadState;           
  static PyObject * pyMainDict_;                     
  static PyObject * pyDict_;                         
  static map<string, struct module_data> modules_;   
  static void       initHelperFunctions(void);
};

#endif // __CPython_h__

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