/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtTest module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QSIGNALSPY_H+
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#define QSIGNALSPY_H+
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+
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#include <QtCore/qbytearray.h>+
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#include <QtCore/qlist.h>+
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#include <QtCore/qobject.h>+
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#include <QtCore/qmetaobject.h>+
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#include <QtCore/qvariant.h>+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_MODULE(Test)+
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+
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class QVariant;+
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+
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/* ### Qt5: change the class to use regular BC mechanisms, such that we can+
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 * implement things like suggested in task 160192. */+
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class QSignalSpy: public QObject, public QList<QList<QVariant> >+
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{+
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public:+
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    QSignalSpy(QObject *obj, const char *aSignal)+
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    {+
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#ifdef Q_CC_BOR+
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        const int memberOffset = QObject::staticMetaObject.methodCount();+
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#else+
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        static const int memberOffset = QObject::staticMetaObject.methodCount();+
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#endif+
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        Q_ASSERT(obj);+
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        Q_ASSERT(aSignal);+
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+
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        if (((aSignal[0] - '0') & 0x03) != QSIGNAL_CODE) {+
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            qWarning("QSignalSpy: Not a valid signal, use the SIGNAL macro");+
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            return;+
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        }+
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+
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        QByteArray ba = QMetaObject::normalizedSignature(aSignal + 1);+
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        const QMetaObject *mo = obj->metaObject();+
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        int sigIndex = mo->indexOfMethod(ba.constData());+
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        if (sigIndex < 0) {+
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            qWarning("QSignalSpy: No such signal: '%s'", ba.constData());+
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            return;+
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        }+
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+
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        if (!QMetaObject::connect(obj, sigIndex, this, memberOffset,+
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                    Qt::DirectConnection, 0)) {+
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            qWarning("QSignalSpy: QMetaObject::connect returned false. Unable to connect.");+
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            return;+
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        }+
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        sig = ba;+
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        initArgs(mo->method(sigIndex));+
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    }+
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+
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    inline bool isValid() const { return !sig.isEmpty(); }+
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    inline QByteArray signal() const { return sig; }+
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+
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+
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    int qt_metacall(QMetaObject::Call call, int methodId, void **a)+
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    {+
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        methodId = QObject::qt_metacall(call, methodId, a);+
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        if (methodId < 0)+
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            return methodId;+
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+
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        if (call == QMetaObject::InvokeMetaMethod) {+
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            if (methodId == 0) {+
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                appendArgs(a);+
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            }+
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            --methodId;+
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        }+
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        return methodId;+
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    }+
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+
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private:+
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    void initArgs(const QMetaMethod &member)+
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    {+
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        QList<QByteArray> params = member.parameterTypes();+
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        for (int i = 0; i < params.count(); ++i) {+
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            int tp = QMetaType::type(params.at(i).constData());+
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            if (tp == QMetaType::Void)+
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                qWarning("Don't know how to handle '%s', use qRegisterMetaType to register it.",+
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                         params.at(i).constData());+
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            args << tp;+
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        }+
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    }+
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+
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    void appendArgs(void **a)+
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    {+
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        QList<QVariant> list;+
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        for (int i = 0; i < args.count(); ++i) {+
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            QMetaType::Type type = static_cast<QMetaType::Type>(args.at(i));+
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            list << QVariant(type, a[i + 1]);+
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        }+
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        append(list);+
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    }+
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+
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    // the full, normalized signal name+
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    QByteArray sig;+
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    // holds the QMetaType types for the argument list of the signal+
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    QList<int> args;+
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};+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif+
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