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/*
* This file is part of the Shiboken Python Binding Generator project.
*
* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
*
* Contact: PySide team <contact@pyside.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation. Please
* review the following information to ensure the GNU Lesser General
* Public License version 2.1 requirements will be met:
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
*
* As a special exception to the GNU Lesser General Public License
* version 2.1, the object code form of a "work that uses the Library"
* may incorporate material from a header file that is part of the
* Library. You may distribute such object code under terms of your
* choice, provided that the incorporated material (i) does not exceed
* more than 5% of the total size of the Library; and (ii) is limited to
* numerical parameters, data structure layouts, accessors, macros,
* inline functions and templates.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef CONVERSIONS_H
#define CONVERSIONS_H
#include <Python.h>
#include <basewrapper.h>
#include <bindingmanager.h>
namespace Shiboken
{
template <typename T>
struct ValueHolder
{
explicit ValueHolder(T val) : value(val) {}
T value;
};
template <typename T>
struct Converter
{
static PyObject* toPython(ValueHolder<T> cppobj) {
return 0;
}
static T toCpp(PyObject* pyobj) {
return T();
}
};
// Object Types ---------------------------------------------------------------
template <>
struct Converter<void*>
{
static PyObject* toPython(ValueHolder<void*> cppobj)
{
PyObject* obj = BindingManager::instance().retrieveWrapper(cppobj.value);
Py_XINCREF(obj);
return obj;
}
static void* toCpp(PyObject* pyobj)
{
return ((Shiboken::PyBaseWrapper*) pyobj)->cptr;
}
};
// Primitive Types ------------------------------------------------------------
template <>
struct Converter<bool>
{
static PyObject* toPython(ValueHolder<bool> holder)
{
return PyBool_FromLong(holder.value);
}
static bool toCpp(PyObject* pyobj)
{
return pyobj == Py_True;
}
};
template <typename PyIntEquiv>
struct Converter_PyInt
{
static PyObject* toPython(ValueHolder<PyIntEquiv> holder)
{
return PyInt_FromLong((long) holder.value);
}
static PyIntEquiv toCpp(PyObject* pyobj)
{
if (PyFloat_Check(pyobj))
return (PyIntEquiv) PyFloat_AS_DOUBLE(pyobj);
return (PyIntEquiv) PyInt_AS_LONG(pyobj);
}
};
template <> struct Converter<char> : Converter_PyInt<char> {};
template <> struct Converter<unsigned char> : Converter_PyInt<unsigned char> {};
template <> struct Converter<int> : Converter_PyInt<int> {};
template <> struct Converter<unsigned int> : Converter_PyInt<unsigned int> {};
template <> struct Converter<short> : Converter_PyInt<short> {};
template <> struct Converter<unsigned short> : Converter_PyInt<unsigned short> {};
template <> struct Converter<long> : Converter_PyInt<long> {};
template <>
struct Converter<unsigned long>
{
static PyObject* toPython(ValueHolder<unsigned long> holder)
{
return PyLong_FromUnsignedLong(holder.value);
}
static unsigned long toCpp(PyObject* pyobj)
{
return (unsigned long) PyLong_AsUnsignedLong(pyobj);
}
};
template <>
struct Converter<PY_LONG_LONG>
{
static PyObject* toPython(ValueHolder<PY_LONG_LONG> holder)
{
return PyLong_FromLongLong(holder.value);
}
static PY_LONG_LONG toCpp(PyObject* pyobj)
{
return (PY_LONG_LONG) PyLong_AsLongLong(pyobj);
}
};
template <>
struct Converter<unsigned PY_LONG_LONG>
{
static PyObject* toPython(ValueHolder<unsigned PY_LONG_LONG> holder)
{
return PyLong_FromUnsignedLongLong(holder.value);
}
static unsigned PY_LONG_LONG toCpp(PyObject* pyobj)
{
return (unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLong(pyobj);
}
};
template <typename PyFloatEquiv>
struct Converter_PyFloat
{
static PyObject* toPython(ValueHolder<PyFloatEquiv> holder)
{
return PyFloat_FromDouble((double) holder.value);
}
static PyFloatEquiv toCpp(PyObject* pyobj)
{
if (PyInt_Check(pyobj))
return (PyFloatEquiv) PyInt_AS_LONG(pyobj);
return (PyFloatEquiv) PyFloat_AS_DOUBLE(pyobj);
}
};
template <> struct Converter<float> : Converter_PyFloat<float> {};
template <> struct Converter<double> : Converter_PyFloat<double> {};
// C Sting Types --------------------------------------------------------------
template <>
struct Converter<const char*>
{
static PyObject* toPython(ValueHolder<const char*> holder)
{
return PyString_FromString(holder.value);
}
static const char* toCpp(PyObject* pyobj)
{
return PyString_AsString(pyobj);
}
};
} // namespace Shiboken
#endif // CONVERSIONS_H
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