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Initial port of signal slots infrastructure from PySide to the Shiboken version.

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Hugo Lima 2009-12-15 19:24:30 -02:00
commit c8e9080972
17 changed files with 1135 additions and 2 deletions
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libpyside/signalslotconnection.cpp Normal file
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/*
* This file is part of the Shiboken Python Bindings 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
*/
#include "signalslotconnection.h"
#include <QDebug>
using namespace PySide;
SignalSlotConnection::SignalSlotConnection(QObject* source, const char* signal, PyObject* callback, Qt::ConnectionType connectionType)
: AbstractQObjectConnection(source, signal, connectionType), m_receiver(0)
{
if (PyMethod_Check(callback)) {
m_function = PyMethod_GET_FUNCTION(callback);
if (PyObject* self = PyMethod_GET_SELF(callback))
m_receiver = self;
} else {
m_function = callback;
}
Py_INCREF(m_function);
PyCodeObject* objCode = reinterpret_cast<PyCodeObject*>(PyFunction_GET_CODE(m_function));
m_numSlotArgs = objCode->co_flags & CO_VARARGS ? -1 : objCode->co_argcount;
}
SignalSlotConnection::~SignalSlotConnection()
{
Py_DECREF(m_function);
}
void SignalSlotConnection::trigger(PyObject* args)
{
int useSelf = m_receiver ? 1 : 0;
int numArgs = PySequence_Size(args);
PyObject* preparedArgs = PyTuple_New(numArgs + useSelf);
if (m_receiver)
PyTuple_SetItem(preparedArgs, 0, m_receiver);
for (int i = 0; i < numArgs; ++i)
PyTuple_SET_ITEM(preparedArgs, i + useSelf, PyTuple_GET_ITEM(args, i));
qDebug() << "num args: " << m_numSlotArgs;
// sliceamento
// if (m_num_slot_args != -1 && m_num_slot_args < python::len(args)) {
// args = python::list(args.slice(0, m_num_slot_args));
// }
qDebug() << "Receiver" << m_receiver;
qDebug() << "numargs" << numArgs;
PyObject* retval = PyObject_CallObject(m_function, preparedArgs);
if (retval) {
Py_DECREF(retval);
} else {
qWarning(qPrintable(QString("Error calling slot ")+
PyString_AS_STRING(reinterpret_cast<PyCodeObject*>(PyFunction_GET_CODE(m_function))->co_name)));
}
}