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// This is the implementation of the various Chimera helpers.
//
// Copyright (c) 2018 Riverbank Computing Limited <info@riverbankcomputing.com>
//
// This file is part of PyQt5.
//
// This file may be used under the terms of the GNU General Public License
// version 3.0 as published by the Free Software Foundation and appearing in
// the file LICENSE included in the packaging of this file. Please review the
// following information to ensure the GNU General Public License version 3.0
// requirements will be met: http://www.gnu.org/copyleft/gpl.html.
//
// If you do not wish to use this file under the terms of the GPL version 3.0
// then you may purchase a commercial license. For more information contact
// info@riverbankcomputing.com.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#include <Python.h>
#include <QList>
#include <QMetaType>
#include <QObject>
#include "qpyquick_chimera_helpers.h"
#include "sipAPIQtQuick.h"
// Forward declarations.
static int QList_QObject_metatype();
static bool to_QList_QObject(PyObject *obj, QList<QObject *>&cpp);
// Convert a QVariant to a Python object.
bool qpyquick_from_qvariant_convertor(const QVariant *varp, PyObject **objp)
{
// Check we handle the meta-type.
if (varp->userType() != QList_QObject_metatype())
return false;
const QList<QObject *> *cpp = reinterpret_cast<const QList<QObject *> *>(varp->data());
PyObject *obj = PyList_New(cpp->count());
if (obj)
{
for (int i = 0; i < cpp->count(); ++i)
{
PyObject *itm = sipConvertFromType(cpp->at(i), sipType_QObject, 0);
if (!itm)
{
Py_DECREF(obj);
obj = 0;
break;
}
PyList_SetItem(obj, i, itm);
}
}
*objp = obj;
return true;
}
// Convert a Python object to a QVariant.
bool qpyquick_to_qvariant_convertor(PyObject *obj, QVariant &var, bool *okp)
{
int metatype = QList_QObject_metatype();
// Check the meta-type has been defined.
if (metatype == 0)
return false;
QList<QObject *> qlo;
// A failure to convert isn't an error, just the wrong type of Python
// object.
if (!to_QList_QObject(obj, qlo))
return false;
var = QVariant(metatype, &qlo);
*okp = true;
return true;
}
// Convert a Python object to QVariant data.
bool qpyquick_to_qvariant_data_convertor(PyObject *obj, void *data,
int metatype, bool *okp)
{
// Check we handle the meta-type.
if (metatype != QList_QObject_metatype())
return false;
QList<QObject *> qlo;
// A failure to convert isn't an error, just the wrong type of Python
// object.
if (!to_QList_QObject(obj, qlo))
return false;
*reinterpret_cast<QList<QObject *> *>(data) = qlo;
*okp = true;
return true;
}
// Get the metatype for QList<QObject *> or 0 if it hasn't been registered.
static int QList_QObject_metatype()
{
static int lo_metatype = 0;
// We look each time until we find it rather than rely on any particular
// behaviour from QtQuick.
if (lo_metatype == 0)
lo_metatype = QMetaType::type("QList<QObject*>");
return lo_metatype;
}
// Convert a Python list object to a QList<QObject*> and return true if the
// conversion was successful. An empty list is never converted and left to the
// QtCore module to handle.
static bool to_QList_QObject(PyObject *obj, QList<QObject *>&cpp)
{
if (!PyList_CheckExact(obj) || PyList_Size(obj) == 0)
return false;
for (Py_ssize_t i = 0; i < PyList_Size(obj); ++i)
{
PyObject *val_obj = PyList_GetItem(obj, i);
if (!val_obj)
return false;
int iserr = 0;
QObject *val = reinterpret_cast<QObject *>(sipForceConvertToType(
val_obj, sipType_QObject, 0, SIP_NO_CONVERTORS, 0, &iserr));
if (iserr)
return false;
cpp.append(val);
}
return true;
}
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