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// This defines the definition of the PyQtSlot class.
//
// 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.
#ifndef _QPYCORE_PYQTSLOT_H
#define _QPYCORE_PYQTSLOT_H
#include <Python.h>
#include "qpycore_chimera.h"
class PyQtSlot
{
public:
enum Result
{
Succeeded, // The invocation was successful.
Failed, // The invocation failed.
Ignored // The invocation was ignore because the receiver has gone.
};
PyQtSlot(PyObject *method, PyObject *type,
const Chimera::Signature *slot_signature);
PyQtSlot(PyObject *callable, const Chimera::Signature *slot_signature);
~PyQtSlot();
PyQtSlot::Result invoke(void **qargs, bool no_receiver_check) const;
bool invoke(void **qargs, PyObject *self, void *result) const;
const Chimera::Signature *slotSignature() const {return signature;}
void clearOther();
int visitOther(visitproc visit, void *arg);
bool operator==(PyObject *callable) const;
private:
PyQtSlot::Result invoke(void **qargs, PyObject *self, void *result,
bool no_receiver_check) const;
PyObject *call(PyObject *callable, PyObject *args) const;
PyObject *instance() const;
PyObject *mfunc;
PyObject *mself;
#if PY_MAJOR_VERSION < 3
PyObject *mclass;
#endif
PyObject *mself_wr;
PyObject *other;
const Chimera::Signature *signature;
// By forcing the use of pointers we don't need to worry about managing the
// reference counts of the component Python objects.
PyQtSlot(const PyQtSlot &);
PyQtSlot &operator=(const PyQtSlot &);
};
#endif
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