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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Copyright (C) 2013 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com>
** Contact: http://www.qt-project.org/legal
*
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, 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.GPL 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef VARIANTARGUMENT_H
#define VARIANTARGUMENT_H
#include <QVariant>
#include <QMetaType>
/**
* RAII QVariant to Q[Generic]Argument conversion
*/
class VariantArgument
{
public:
explicit VariantArgument()
: m_data(0)
, m_paramType(0)
{
}
/// TODO: test with C++ methods that don't take a QVariant as arg
/// also test conversions
void setValue(const QVariant &value, int paramType)
{
if (m_data) {
QMetaType::destroy(m_paramType, m_data);
m_name.clear();
m_data = 0;
}
m_paramType = paramType;
if (value.isValid()) {
m_name = value.typeName();
m_data = QMetaType::create(m_paramType, value.constData());
}
}
~VariantArgument()
{
if (m_data) {
QMetaType::destroy(m_paramType, m_data);
m_data = 0;
}
}
operator QGenericArgument() const
{
if (!m_data) {
return QGenericArgument();
}
return QGenericArgument(m_name.constData(), m_data);
}
private:
Q_DISABLE_COPY(VariantArgument)
QByteArray m_name;
void* m_data;
int m_paramType;
};
#endif // VARIANTARGUMENT_H
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