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/*
multisignalmapper.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Volker Krause <volker.krause@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "multisignalmapper.h"
#include <QDebug>
#include <QMetaMethod>
#include <QMetaObject>
#include <QVariant>
namespace GammaRay {
class MultiSignalMapperPrivate : public QObject
{
public:
explicit MultiSignalMapperPrivate(MultiSignalMapper *parent)
: QObject(parent)
, q(parent)
{
}
~MultiSignalMapperPrivate() override = default;
int qt_metacall(QMetaObject::Call call, int methodId, void **args) override
{
methodId = QObject::qt_metacall(call, methodId, args);
if (methodId < 0)
return methodId;
if (call == QMetaObject::InvokeMetaMethod) {
Q_ASSERT(sender());
const QVector<QVariant> v = convertArguments(sender(), methodId, args);
emit q->signalEmitted(sender(), methodId, v);
return -1; // indicates we handled the call
}
return methodId;
}
static QVector<QVariant> convertArguments(QObject *sender, int signalIndex, void **args)
{
Q_ASSERT(sender);
Q_ASSERT(signalIndex >= 0);
const QMetaMethod signal = sender->metaObject()->method(signalIndex);
Q_ASSERT(signal.methodType() == QMetaMethod::Signal);
QVector<QVariant> v;
const QList<QByteArray> paramTypes = signal.parameterTypes();
for (int i = 0; i < paramTypes.size(); ++i) {
int type = QMetaType::type(paramTypes[i]);
if (type == QMetaType::Void || type == QMetaType::UnknownType) {
qWarning() << Q_FUNC_INFO << "unknown metatype for signal argument type"
<< paramTypes[i];
continue;
}
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
v.push_back(QVariant(type, args[i + 1]));
#else
v.push_back(QVariant(QMetaType(type), args[i + 1]));
#endif
}
return v;
}
private:
MultiSignalMapper *q;
};
}
using namespace GammaRay;
MultiSignalMapper::MultiSignalMapper(QObject *parent)
: QObject(parent)
, d(new MultiSignalMapperPrivate(this))
{
}
MultiSignalMapper::~MultiSignalMapper() = default;
void MultiSignalMapper::connectToSignal(QObject *sender, const QMetaMethod &signal)
{
QMetaObject::connect(sender, signal.methodIndex(), d,
QObject::metaObject()->methodCount() + signal.methodIndex(), Qt::AutoConnection | Qt::UniqueConnection,
nullptr);
}
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