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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 "signalmanager.h"
#include "proxyslot.h"
#include <QHash>
#include <QStringList>
#include <QDebug>
#if QSLOT_CODE != 1 || QSIGNAL_CODE != 2
#error QSLOT_CODE and/or QSIGNAL_CODE changed! change the hardcoded stuff to the correct value!
#endif
#define PYSIDE_SLOT '1'
#define PYSIDE_SIGNAL '2'
#include "typeresolver.h"
#include "signalslotconnection.h"
using namespace PySide;
static bool checkSignal(const char* signal)
{
if (signal[0] != PYSIDE_SIGNAL) {
PyErr_SetString(PyExc_TypeError, "Use the function PySide.QtCore.SIGNAL on signals");
return false;
}
return true;
}
QStringList PySide::getArgsFromSignature(const char* signature)
{
QString qsignature(signature);
QStringList result;
QRegExp splitRegex("\\s*,\\s*");
if (qsignature.contains("()") || qsignature.contains("(void)")) {
return result;
} else if (qsignature.contains('(')) {
//get args types
QString types = qsignature.replace(QRegExp(".+\\((.*)\\)"), "\\1");
result = types.split(splitRegex);
}
return result;
}
struct SignalManager::SignalManagerPrivate
{
QHash<QObject*, ProxySlot*> m_proxies;
ProxySlot* findProxy(QObject* signalSource)
{
ProxySlot* proxy = m_proxies.value(signalSource);
if (!proxy) {
proxy = new ProxySlot(signalSource);
m_proxies[signalSource] = proxy;
QObject::connect(signalSource, SIGNAL(destroyed()), proxy, SLOT(deleteLater()));
}
return proxy;
}
};
SignalManager::SignalManager() : m_d(new SignalManagerPrivate)
{
}
SignalManager::~SignalManager()
{
delete m_d;
}
SignalManager& SignalManager::instance()
{
static SignalManager me;
return me;
}
bool SignalManager::connect(QObject* source, const char* signal, PyObject* callback, Qt::ConnectionType type)
{
if (!checkSignal(signal))
return false;
signal++;
ProxySlot* proxy = m_d->findProxy(source);
AbstractQObjectConnection* connection = new SignalSlotConnection(source, signal, callback, type);
return proxy->connect(connection);
}
bool SignalManager::connect(QObject* source, const char* signal, QObject* receiver, const char* slot, Qt::ConnectionType type)
{
if (!checkSignal(signal))
return false;
if (!QMetaObject::checkConnectArgs(signal, slot))
return false;
int signal_index = source->metaObject()->indexOfSignal(signal);
int slot_index = receiver->metaObject()->indexOfSlot(slot);
bool retval;
if (signal_index != -1 && slot_index != -1) {
// C++ -> C++ connection
retval = QMetaObject::connect(source, signal_index,
receiver, slot_index, type);
} else {
// We have a python slot or signal
ProxySlot* proxy = m_d->findProxy(source);
AbstractQObjectConnection* connection = 0;
retval = proxy->connect(connection);
}
return retval;
}
bool SignalManager::emitSignal(QObject* source, const char* signal, PyObject* args)
{
if (checkSignal(signal))
return false;
int argsGiven = PySequence_Size(args);
//search native signal
int signalIndex = source->metaObject()->indexOfSignal(signal+1);
if (signalIndex == -1) {
// dynamic signal
qDebug() << "Dynamic signal not implemented yet!";
} else {
// a C++ signal
QStringList argTypes = getArgsFromSignature(signal);
void* signalArgs[argsGiven+1];
for (int i = 0; i < argsGiven; i++)
signalArgs[i] = TypeResolver::get(argTypes[i])->toCpp(PySequence_GetItem(args, i));
QMetaObject::activate(source, signalIndex, signalArgs);
return true;
}
return false;
}
void PySide::SignalManager::removeProxySlot(QObject* signalSource)
{
m_d->m_proxies.remove(signalSource);
}
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