QskSizePolicy.cpp

/******************************************************************************
 * QSkinny - Copyright (C) The authors
 *           SPDX-License-Identifier: BSD-3-Clause
 *****************************************************************************/
 
#include "QskSizePolicy.h"
 
#ifndef QT_NO_DEBUG
#include <qdebug.h>
#endif
 
#include <utility>
 
static void qskRegisterSizePolicy()
{
    qRegisterMetaType< QskSizePolicy >();
 
#if QT_VERSION < QT_VERSION_CHECK( 6, 0, 0 )
    QMetaType::registerEqualsComparator< QskSizePolicy >();
#endif
}
 
Q_CONSTRUCTOR_FUNCTION( qskRegisterSizePolicy )
 
QskSizePolicy::ConstraintType QskSizePolicy::constraintType() const noexcept
{
    constexpr unsigned char mask = IgnoreFlag | ConstrainedFlag;
 
#ifndef QT_NO_DEBUG
    if ( ( ( m_horizontalPolicy & mask ) == mask )
        || ( ( m_verticalPolicy & mask ) == mask ) )
    {
        qWarning() << "invalid policy having IgnoreFlag and ConstrainedFlag";
    }
#endif
 
    if ( ( m_horizontalPolicy & mask ) == ConstrainedFlag )
        return QskSizePolicy::WidthForHeight;
 
    if ( ( m_verticalPolicy & mask ) == ConstrainedFlag )
        return QskSizePolicy::HeightForWidth;
 
    return QskSizePolicy::Unconstrained;
}
 
Qt::SizeHint QskSizePolicy::effectiveSizeHintType(
    Qt::SizeHint which, Qt::Orientation orientation ) const noexcept
{
    const auto policy = ( orientation == Qt::Horizontal )
        ? horizontalPolicy() : verticalPolicy();
 
    if ( which == Qt::MinimumSize )
    {
        if ( !( policy & ShrinkFlag ) )
            return Qt::PreferredSize;
    }
    else if ( which == Qt::MaximumSize )
    {
        if ( !( policy & ( GrowFlag | ExpandFlag ) ) )
            return Qt::PreferredSize;
    }
 
    return which;
}
 
void QskSizePolicy::transpose() noexcept
{
    std::swap( m_horizontalPolicy, m_verticalPolicy );
}
 
#ifndef QT_NO_DEBUG_STREAM
 
#include <qdebug.h>
 
QDebug operator<<( QDebug debug, const QskSizePolicy& policy )
{
    QDebugStateSaver saver( debug );
    debug.nospace();
    debug << "SizePolicy" << '(';
    debug << policy.horizontalPolicy() << ", " << policy.verticalPolicy();
    debug << ')';
 
    return debug;
}
 
#endif
 
#include "moc_QskSizePolicy.cpp"