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/*
* This file is part of PySide: Python for Qt
*
* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
*
* Contact: PySide team <contact@pyside.org>
*
* This library 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.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef TYPE_DETAILS_H
#define TYPE_DETAILS_H
#include <QtCore/QString>
#include <QtCore/QGenericArgument>
#include <boost_headers.hpp>
#include <pyside_global.hpp>
#include <parent_policy.hpp>
namespace PySide
{
class PYSIDE_LOCAL type_details
{
typedef boost::python::object(*func_cpp_to_python_type)(void*);
typedef QGenericArgument(*func_python_to_cpp_type)(const boost::python::object&, const char*);
typedef void(*func_delete_type)(void*);
// disable object copy
type_details() {}
type_details(const type_details&);
type_details& operator=(const type_details&);
public:
template<typename T>
static type_details*
create_object_type_details(const char* type_name) {
type_details* self = new type_details();
self->m_type_name = type_name;
self->m_type_object = boost::python::converter::registry::query(boost::python::type_id<T>())->get_class_object();
self->m_func_cpp_to_python = &objecttype_to_python<T>;
self->m_func_python_to_cpp = &python_to_objecttype<T*>;
self->m_func_delete = 0;
return self;
}
template<typename T>
static type_details*
create_value_type_details(const char* type_name) {
type_details* self = new type_details();
self->m_type_name = type_name;
self->m_type_object = boost::python::converter::registry::query(boost::python::type_id<T>())->get_class_object();
self->m_func_cpp_to_python = &valuetype_to_python<T>;
self->m_func_python_to_cpp = &python_to_value_type<T>;
self->m_func_delete = &func_delete_data<T>;
return self;
}
template<typename T>
static type_details*
create_native_type_details(const char* type_name) {
type_details* self = new type_details();
self->m_type_name = type_name;
self->m_type_object = 0;
self->m_func_cpp_to_python = &native_to_python<T>;
self->m_func_python_to_cpp = &python_to_value_type<T>;
self->m_func_delete = &func_delete_data<T>;
return self;
}
template<typename T>
static type_details*
create_container_type_details(const char* type_name) {
type_details* self = new type_details();
self->m_type_name = type_name;
self->m_type_object = 0;
self->m_func_cpp_to_python = &container_to_python<T>;
self->m_func_python_to_cpp = &python_to_container<T>;
self->m_func_delete = &func_delete_data<T>;
return self;
}
boost::python::object
to_python(void *data) const
{
return m_func_cpp_to_python(data);
}
QGenericArgument
to_cpp(const boost::python::object &obj) const
{
return m_func_python_to_cpp(obj, m_type_name);
}
const PyTypeObject*
get_python_type_object() const
{
return m_type_object;
}
void
delete_data(QGenericArgument &arg) const
{
if (m_func_delete)
m_func_delete(arg.data());
}
private:
const char* m_type_name;
const PyTypeObject *m_type_object;
func_cpp_to_python_type m_func_cpp_to_python;
func_python_to_cpp_type m_func_python_to_cpp;
func_delete_type m_func_delete;
/* Object-Type Convertion functions */
template <class T>
static boost::python::object
objecttype_to_python(void* p)
{
T* obj = *(reinterpret_cast< T*(*)>(p));
boost::python::object py_obj(PySide::ptr(obj));
if (!py_obj.ptr())
{
fprintf(stderr, "Fail to create python object from object in address: %p\n", obj);
py_obj = boost::python::object();
}
else
{
boost::python::incref(py_obj.ptr());
}
return py_obj;
}
template <class T>
static QGenericArgument
python_to_objecttype(const boost::python::object &obj, const char *type_name)
{
T val = boost::python::extract<T>(obj);
return QGenericArgument(type_name, val);
}
/* value type convertion functions */
template <class T>
static boost::python::object
valuetype_to_python(void* p)
{
T* val = reinterpret_cast<T*>(p);
return boost::python::object(val);
}
template <class T>
static QGenericArgument
python_to_value_type(const boost::python::object& obj, const char *type_name)
{
T* val = new T(boost::python::extract<T>(obj));
return QGenericArgument(type_name, static_cast<const void*>(val));
}
template <typename T>
static QGenericArgument
python_to_container(const boost::python::object& obj, const char* type_name)
{
T* val = new T(boost::python::extract<T>(obj));
return QGenericArgument(type_name, static_cast<const void*>(val));
}
template <typename T>
static boost::python::object
container_to_python(void* p)
{
return boost::python::object(reinterpret_cast<T*>(p));
}
template<typename T>
static boost::python::object
container_value_to_python(T t)
{
return valuetype_to_python<T>(&t);
}
template<typename T>
static boost::python::object
container_value_to_python(T* t)
{
return objecttype_to_python<T>(&t);
}
template <class T>
static void
func_delete_data(void *data)
{
delete reinterpret_cast<T*>(data);
}
template<typename T>
static boost::python::object
native_to_python(void* p)
{
T* val = new T(*reinterpret_cast<T*>(p));
return boost::python::object(*val);
}
};
} // namespace PySide
#endif
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