cxx-qt-lib 0.9.1

Qt types for integrating `cxx-qt` crate with `cxx`
Documentation 
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// clang-format off
// SPDX-FileCopyrightText: 2022 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
// clang-format on
// SPDX-FileContributor: Andrew Hayzen <andrew.hayzen@kdab.com>
// SPDX-FileContributor: Leon Matthes <leon.matthes@kdab.com>
//
// SPDX-License-Identifier: MIT OR Apache-2.0
#include "cxx-qt-lib/qvariant.h"

#include <QtCore/QMetaObject>

#include <cxx-qt-lib/assertion_utils.h>

// The layout has changed between Qt 5 and Qt 6
//
// Qt6 QVariant has one member, which contains three pointers and a union
// (with a pointer / double as the largest member)
// https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/kernel/qvariant.h?h=v6.2.4#n540
// https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/kernel/qvariant.h?h=v6.2.4#n474
//
// Qt5 QVariant has one member, which contains three uints and a union
// (with a pointer / double as the largest member)
// The three uints are optimised to a reduced size of ushorts
// https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/kernel/qvariant.h?h=v5.15.6-lts-lgpl#n491
// https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/kernel/qvariant.h?h=v5.15.6-lts-lgpl#n411
#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
assert_alignment_and_size(QVariant, {
  double a0;
  ::std::size_t a1[3];
});
#else
assert_alignment_and_size(QVariant, {
  double a0;
  ::std::uint32_t a1;
});
#endif

static_assert(!::std::is_trivially_copy_assignable<QVariant>::value);
static_assert(!::std::is_trivially_copy_constructible<QVariant>::value);

// Ensure that trivially destructible is correct
// If this is false then we need to manually implement Drop rather than derive
static_assert(!::std::is_trivially_destructible<QVariant>::value);

static_assert(QTypeInfo<QVariant>::isRelocatable);

// Need to use a macro here as we can't template because the types
// are always QVariant and bool. So then CXX can't decide which to use.
#define CXX_QT_QVARIANT_CAN_CONVERT_IMPL(typeName, name)                       \
  bool qvariantCanConvert##name(const QVariant& variant)                       \
  {                                                                            \
    return variant.canConvert<typeName>();                                     \
  }

namespace rust {
namespace cxxqtlib1 {
namespace qvariant {

CXX_QT_QVARIANT_CAN_CONVERT_IMPL(bool, Bool)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(float, F32)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(double, F64)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::int8_t, I8)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::int16_t, I16)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::int32_t, I32)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::int64_t, I64)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QByteArray, QByteArray)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QDate, QDate)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QDateTime, QDateTime)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QLine, QLine)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QLineF, QLineF)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QModelIndex, QModelIndex)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QPersistentModelIndex, QPersistentModelIndex)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QPoint, QPoint)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QPointF, QPointF)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QRect, QRect)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QRectF, QRectF)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QSize, QSize)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QSizeF, QSizeF)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QString, QString)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QStringList, QStringList)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QTime, QTime)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QUrl, QUrl)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QUuid, QUuid)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QVariantHash, QVariantHash)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QVariantList, QVariantList)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QVariantMap, QVariantMap)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::uint8_t, U8)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::uint16_t, U16)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::uint32_t, U32)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::std::uint64_t, U64)

#ifdef CXX_QT_GUI_FEATURE
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QColor, QColor)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QFont, QFont)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QImage, QImage)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QPen, QPen)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QPolygon, QPolygon)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QPolygonF, QPolygonF)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QQuaternion, QQuaternion)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QRegion, QRegion)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QVector2D, QVector2D)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QVector3D, QVector3D)
CXX_QT_QVARIANT_CAN_CONVERT_IMPL(::QVector4D, QVector4D)
#endif

}
}
}