qsizepolicy.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qsizepolicy.h"
 
#include <qdatastream.h>
#include <qdebug.h>
#include <qvariant.h>
 
QT_BEGIN_NAMESPACE
 
QSizePolicy::ControlType QSizePolicy::controlType() const noexcept
{
    return QSizePolicy::ControlType(1 << bits.ctype);
}
 
 
void QSizePolicy::setControlType(ControlType type) noexcept
{
    bits.ctype = toControlTypeFieldValue(type);
}
 
QSizePolicy::operator QVariant() const
{
    return QVariant::fromValue(*this);
}
 
#ifndef QT_NO_DATASTREAM
 
QDataStream &operator<<(QDataStream &stream, const QSizePolicy &policy)
{
    // The order here is for historical reasons. (compatibility with Qt4)
    quint32 data = (policy.bits.horPolicy |         // [0, 3]
                    policy.bits.verPolicy << 4 |    // [4, 7]
                    policy.bits.hfw << 8 |          // [8]
                    policy.bits.ctype << 9 |        // [9, 13]
                    policy.bits.wfh << 14 |         // [14]
                    policy.bits.retainSizeWhenHidden << 15 |     // [15]
                    policy.bits.verStretch << 16 |  // [16, 23]
                    policy.bits.horStretch << 24);  // [24, 31]
    return stream << data;
}
 
#define VALUE_OF_BITS(data, bitstart, bitcount) ((data >> bitstart) & ((1 << bitcount) -1))
 
QDataStream &operator>>(QDataStream &stream, QSizePolicy &policy)
{
    quint32 data;
    stream >> data;
    policy.bits.horPolicy =  VALUE_OF_BITS(data, 0, 4);
    policy.bits.verPolicy =  VALUE_OF_BITS(data, 4, 4);
    policy.bits.hfw =        VALUE_OF_BITS(data, 8, 1);
    policy.bits.ctype =      VALUE_OF_BITS(data, 9, 5);
    policy.bits.wfh =        VALUE_OF_BITS(data, 14, 1);
    policy.bits.retainSizeWhenHidden =    VALUE_OF_BITS(data, 15, 1);
    policy.bits.verStretch = VALUE_OF_BITS(data, 16, 8);
    policy.bits.horStretch = VALUE_OF_BITS(data, 24, 8);
    return stream;
}
#endif // QT_NO_DATASTREAM
 
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const QSizePolicy &p)
{
    QDebugStateSaver saver(dbg);
    dbg.nospace() << "QSizePolicy(horizontalPolicy = " << p.horizontalPolicy()
                  << ", verticalPolicy = " << p.verticalPolicy() << ')';
    return dbg;
}
#endif
 
QT_END_NAMESPACE
 
#include "moc_qsizepolicy.cpp"