Qt 6.0 中的新类和函数

The section provides a comprehensive list of all new classes and functions introduced in Qt 6.0.

新名称空间

namespace QNativeInterface
namespace QQuickOpenGLUtils

新类

A
QAbstractFileIconProvider
QAction
QActionGroup
QAdoptSharedDataTag
QAndroidOffscreenSurface ( QNativeInterface )
QAnyStringView
QAxBaseObject
QAxBaseWidget
QAxObjectInterface
B
QBoundingVolume ( Qt3DCore )
QByteArrayView
C
QCocoaGLContext ( QNativeInterface )
QConstIterator
QCoreSettings ( Qt3DCore )
E
QEGLContext ( QNativeInterface )
QEventPoint
G
QGeometryView ( Qt3DCore )
QGLXContext ( QNativeInterface )
I
QInputDevice
QIterable
QIterator
K
QKeyCombination
M
QMetaSequence
QModelRoleData
QModelRoleDataSpan
O
QObjectBindableProperty
QObjectComputedProperty
QOpenGLVersionFunctionsFactory
P
QPageRanges
QPartialOrdering
QPickingProxy ( Qt3DRender )
QPointerEvent
QPointingDevice
QPromise
QProperty
QPropertyBindingError
QPropertyData
Q
QQuick3DTextureData
QQuickGraphicsConfiguration
QQuickGraphicsDevice
QQuickRenderTarget
S
QSGD3D11Texture ( QNativeInterface )
QSGMetalTexture ( QNativeInterface )
QSGOpenGLTexture ( QNativeInterface )
QSGVulkanTexture ( QNativeInterface )
QSinglePointEvent
QStringTokenizer
T
QTaggedIterator
QTaskBuilder ( QtConcurrent )
QTypeRevision
U
QUntypedBindable
QUtf8StringView
V
QVariantConstPointer
QVariantPointer
QVariantRef
W
QWaylandQtTextInputMethodManager
QWGLContext ( QNativeInterface )

新成员函数

QAbstractItemModel :

virtual bool clearItemData (const QModelIndex & index )
virtual void multiData (const QModelIndex & index , QModelRoleDataSpan roleDataSpan ) const

QAbstractItemView :

virtual void initViewItemOption (QStyleOptionViewItem * option ) const
virtual QAbstractItemDelegate * itemDelegateForIndex (const QModelIndex & index ) const

QAbstractProxyModel :

virtual bool clearItemData (const QModelIndex & index ) override

QAction :

QList<QObject *> associatedObjects () const

QBitArray :

quint32 toUInt32 (QSysInfo::Endian endianness , bool * ok ) const

QBitmap :

QBitmap fromPixmap (const QPixmap & pixmap )

QBluetoothDeviceInfo :

QList<QBluetoothUuid> serviceUuids () const

QByteArray :

int compare (QByteArrayView bv , Qt::CaseSensitivity cs ) const
bool contains (QByteArrayView bv ) const
qsizetype count (QByteArrayView bv ) const
bool endsWith (QByteArrayView bv ) const
QByteArray first (qsizetype n ) const
qsizetype indexOf (QByteArrayView bv , qsizetype from ) const
QByteArray & insert (qsizetype i , QByteArrayView data )
QByteArray last (qsizetype n ) const
qsizetype lastIndexOf (QByteArrayView bv , qsizetype from ) const
void push_back (QByteArrayView str )
void push_front (QByteArrayView str )
QByteArray & replace (QByteArrayView before , QByteArrayView after )
QByteArray sliced (qsizetype pos , qsizetype n ) const
QByteArray sliced (qsizetype pos ) const
bool startsWith (QByteArrayView bv ) const

QCanBusDeviceInfo :

QString alias () const

QChar :

QChar fromUcs2 (char16_t c )
R fromUcs4 (char32_t c )

QDataStream :

QDataStream & operator<< (char16_t c )
QDataStream & operator<< (char32_t c )
QDataStream & operator<< (QDataStream & out , const std::pair<T1, T2> & pair )
QDataStream & operator>> (char16_t & c )
QDataStream & operator>> (char32_t & c )
QDataStream & operator>> (QDataStream & in , std::pair<T1, T2> & pair )

QDate :

QDate fromString (QStringView string , Qt::DateFormat format )
QDate fromString (QStringView string , QStringView format , QCalendar cal )
QDate fromString (const QString & string , QStringView format , QCalendar cal )

QDateTime :

QDateTime fromString (QStringView string , Qt::DateFormat format )
QDateTime fromString (QStringView string , QStringView format , QCalendar cal )
QDateTime fromString (const QString & string , QStringView format , QCalendar cal )

QDebug :

QDebug & operator<< (const char16_t * t )
QDebug & operator<< (QUtf8StringView s )
QDebug & operator<< (QByteArrayView t )
QString toString (T && object )

QDir :

void addSearchPath (const QString & prefix , const std::filesystem::path & path )
std::filesystem::path filesystemAbsolutePath () const
std::filesystem::path filesystemCanonicalPath () const
std::filesystem::path filesystemPath () const
void setPath (const std::filesystem::path & path )

QDropEvent :

Qt::MouseButtons buttons () const
Qt::KeyboardModifiers modifiers () const
QPointF position () const

QEvent :

virtual QEvent * clone () const
bool isInputEvent () const
bool isPointerEvent () const
bool isSinglePointEvent () const

QExplicitlySharedDataPointer :

T * get () const
void reset (T * ptr )

QFile :

bool copy (const std::filesystem::path & newName )
std::filesystem::path filesystemFileName () const
bool link (const std::filesystem::path & newName )
QFileDevice::Permissions permissions (const std::filesystem::path & filename )
bool rename (const std::filesystem::path & newName )
void setFileName (const std::filesystem::path & name )
bool setPermissions (const std::filesystem::path & filename , QFileDevice::Permissions permissionSpec )

QFileInfo :

std::filesystem::path filesystemAbsoluteFilePath () const
std::filesystem::path filesystemAbsolutePath () const
std::filesystem::path filesystemCanonicalFilePath () const
std::filesystem::path filesystemCanonicalPath () const
std::filesystem::path filesystemFilePath () const
std::filesystem::path filesystemPath () const
std::filesystem::path filesystemSymLinkTarget () const
void setFile (const std::filesystem::path & file )
void stat ()

QFuture :

bool isSuspended () const
bool isSuspending () const
bool isValid () const
QFuture<T> onCanceled (Function && handler )
QFuture<T> onFailed (Function && handler )
void setSuspended (bool suspend )
void suspend ()
T takeResult ()
QFuture<ResultType<Function>> then (Function && function )
QFuture<ResultType<Function>> then (QtFuture::Launch policy , Function && function )
QFuture<ResultType<Function>> then (QThreadPool * pool , Function && function )
void toggleSuspended ()

QFutureWatcher :

bool isSuspended () const
bool isSuspending () const
void setSuspended (bool suspend )
void suspend ()
void suspended ()
void suspending ()
void toggleSuspended ()

QGraphicsLayoutItem :

virtual bool isEmpty () const

QHash :

size_t qHash (char8_t key , size_t seed )
size_t qHash (char16_t key , size_t seed )
size_t qHash (char32_t key , size_t seed )
size_t qHash (wchar_t key , size_t seed )
size_t qHash (std::nullptr_t key , size_t seed )
size_t qHash (QPoint key , size_t seed )
size_t qHash (const QTypeRevision & key , size_t seed )
size_t qHashMulti (size_t seed , const T &... args )
size_t qHashMultiCommutative (size_t seed , const T &... args )

QHeaderView :

virtual void initStyleOptionForIndex (QStyleOptionHeader * option , int logicalIndex ) const

QIODevice :

virtual qint64 skipData (qint64 maxSize )

QIcon :

QPixmap pixmap (const QSize & size , qreal devicePixelRatio , QIcon::Mode mode , QIcon::State state ) const

QImage :

QImage convertedTo (QImage::Format format , Qt::ImageConversionFlags flags ) const &
QImage convertedTo (QImage::Format format , Qt::ImageConversionFlags flags ) &&
QImage fromHBITMAP (HBITMAP hbitmap )
QImage fromHICON (HICON icon )
void mirror (bool horizontal , bool vertical )
void rgbSwap ()
HBITMAP toHBITMAP () const
HICON toHICON (const QImage & mask ) const

QImageIOHandler :

bool allocateImage (QSize size , QImage::Format format , QImage * image )

QImageReader :

int allocationLimit ()
void setAllocationLimit (int mbLimit )

QInputEvent :

const QInputDevice * device () const

QJsonValue :

qint64 toInteger (qint64 defaultValue ) const

QKeyEvent :

QKeyCombination keyCombination () const

QLabel :

QPicture picture () const

QLatin1StringView :

QLatin1StringView first (qsizetype n ) const
QLatin1StringView last (qsizetype n ) const
QLatin1StringView sliced (qsizetype pos ) const
QLatin1StringView sliced (qsizetype pos , qsizetype n ) const
QString toString () const
decltype(qTokenize(*this, std::forward<Needle>(needle), flags...)) tokenize (Needle && sep , Flags... flags ) const

QLibraryInfo :

QString path (QLibraryInfo::LibraryPath p )

QList :

void append (QList<T> && value )
QList<T> first (qsizetype n ) const
QList<T> last (qsizetype n ) const
QList<T> & operator+= (QList<T> && other )
QList<T> & operator<< (QList<T> && other )
void resize (qsizetype size )
QList<T> sliced (qsizetype pos , qsizetype n ) const
QList<T> sliced (qsizetype pos ) const

QLocale :

QString quoteString (QStringView str , QLocale::QuotationStyle style ) const

QMap :

QMap::iterator erase (QMap::const_iterator first , QMap::const_iterator last )
std::map<Key, T> toStdMap () &&

QMargins :

QMargins operator| (const QMargins & m1 , const QMargins & m2 )

QMarginsF :

QMarginsF operator| (const QMarginsF & m1 , const QMarginsF & m2 )

QMetaMethod :

QMetaType parameterMetaType (int index ) const
QByteArray parameterTypeName (int index ) const
int relativeMethodIndex () const
QMetaType returnMetaType () const

QMetaProperty :

QUntypedBindable bindable (QObject * object ) const
bool isBindable () const
QMetaType metaType () const
int typeId () const

QMetaSequence :

QMetaSequence fromContainer ()

QMetaType :

qsizetype alignOf () const
QPartialOrdering compare (const void * lhs , const void * rhs ) const
bool 等于 (const void * lhs , const void * rhs ) const
bool hasRegisteredDebugStreamOperator () const
bool hasRegisteredMutableViewFunction ()
bool registerMutableView (To (From::*)() function )
bool registerMutableView (UnaryFunction function )
bool view (QMetaType fromType , void * from , QMetaType toType , void * to )

QModbusReply :

QList<QModbusDevice::IntermediateError> intermediateErrors () const

QModelIndex :

void multiData (QModelRoleDataSpan roleDataSpan ) const

QMultiHash :

QMultiHash<Key, T> & unite (const QHash<Key, T> & other )

QMultiMap :

QMultiMap::iterator erase (QMultiMap::const_iterator first , QMultiMap::const_iterator last )

QSGD3D11Texture :

QSGTexture * fromNative (void * texture , QQuickWindow * window , const QSize & size , QQuickWindow::CreateTextureOptions options )

QSGMetalTexture :

QSGTexture * fromNative (int texture , QQuickWindow * window , const QSize & size , QQuickWindow::CreateTextureOptions options )

QSGOpenGLTexture :

QSGTexture * fromNative (GLuint textureId , QQuickWindow * window , const QSize & size , QQuickWindow::CreateTextureOptions options )

QSGVulkanTexture :

QSGTexture * fromNative (VkImage image , VkImageLayout layout , QQuickWindow * window , const QSize & size , QQuickWindow::CreateTextureOptions options )

QPagedPaintDevice :

QPageRanges pageRanges () const
virtual void setPageRanges (const QPageRanges & ranges )

QPersistentModelIndex :

void multiData (QModelRoleDataSpan roleDataSpan ) const

QPointer :

T * get () const

QProcess :

std::function<void ()> childProcessModifier () const
void setChildProcessModifier (const std::function<void ()> & modifier )
void startCommand (const QString & command , QIODeviceBase::OpenMode mode )

QQmlApplicationEngine :

void setExtraFileSelectors (const QStringList & extraFileSelectors )

QQmlExtensionPlugin :

virtual void unregisterTypes ()

QQuickItem :

virtual void geometryChange (const QRectF & newGeometry , const QRectF & oldGeometry )

QQuickRenderControl :

void beginFrame ()
void endFrame ()
bool initialize ()
int samples () const
void setSamples (int sampleCount )
QQuickWindow * window () const

QQuickWindow :

void afterFrameEnd ()
void beforeFrameBegin ()
QSGRendererInterface::GraphicsApi graphicsApi ()
QQuickGraphicsConfiguration graphicsConfiguration () const
QQuickGraphicsDevice graphicsDevice () const
QQuickRenderTarget renderTarget () const
void setGraphicsApi (QSGRendererInterface::GraphicsApi api )
void setGraphicsConfiguration (const QQuickGraphicsConfiguration & config )
void setGraphicsDevice (const QQuickGraphicsDevice & device )
void setRenderTarget (const QQuickRenderTarget & target )

QRect :

QRect span (const QPoint & p1 , const QPoint & p2 )

QRegion :

QRegion fromHRGN (HRGN hrgn )
HRGN toHRGN () const

QRegularExpression :

QRegularExpression fromWildcard (QStringView pattern , Qt::CaseSensitivity cs , QRegularExpression::WildcardConversionOptions options )

QSGRenderNode :

virtual void prepare ()

QSharedDataPointer :

T * get ()
const T * get () const
void reset (T * ptr )
T * take ()

QShortcut :

QList<QKeySequence> keys () const
void setKeys (QKeySequence::StandardKey key )
void setKeys (const QList<QKeySequence> & keys )

QSortFilterProxyModel :

void autoAcceptChildRowsChanged (bool autoAcceptChildRows )
void invalidateColumnsFilter ()
void invalidateRowsFilter ()

QSqlDriver :

virtual int maximumIdentifierLength (QSqlDriver::IdentifierType type ) const

QSqlQuery :

QVariantList boundValues () const

QSslConfiguration :

bool handshakeMustInterruptOnError () const
bool missingCertificateIsFatal () const
void setCiphers (const QString & ciphers )
void setHandshakeMustInterruptOnError (bool interrupt )
void setMissingCertificateIsFatal (bool cannotRecover )

QSslSocket :

void continueInterruptedHandshake ()

QStandardItem :

virtual void multiData (QModelRoleDataSpan roleDataSpan ) const

QString :

QString & append (QStringView v )
qsizetype count (QStringView str , Qt::CaseSensitivity cs ) const
QString first (qsizetype n ) const
QString fromLatin1 (QByteArrayView str )
QString fromLocal8Bit (QByteArrayView str )
QString fromUtf8 (QByteArrayView str )
QString fromUtf8 (const char8_t * str , qsizetype size )
QString & insert (qsizetype position , QStringView str )
QString last (qsizetype n ) const
int localeAwareCompare (QStringView other ) const
int localeAwareCompare (QStringView s1 , QStringView s2 )
QString & operator+= (QStringView str )
QString & prepend (QStringView str )
QString sliced (qsizetype pos , qsizetype n ) const
QString sliced (qsizetype pos ) const
decltype(qTokenize(*this, std::forward<Needle>(needle), flags...)) tokenize (Needle && sep , Flags... flags ) const &
decltype(qTokenize(std::move(*this), std::forward<Needle>(needle), flags...)) tokenize (Needle && sep , Flags... flags ) const &&
decltype(qTokenize(std::move(*this), std::forward<Needle>(needle), flags...)) tokenize (Needle && sep , Flags... flags ) &&

QStringListModel :

virtual bool clearItemData (const QModelIndex & index ) override

QStringTokenizer :

decltype(QtPrivate::Tok::TokenizerResult<Haystack, Needle>({std::forward<Haystack>(h), std::forward<Needle>(n), flags...})) qTokenize (Haystack && haystack , Needle && needle , Flags... flags )

QStringView :

QStringView::const_pointer constData () const
qsizetype count (QChar ch , Qt::CaseSensitivity cs ) const
qsizetype count (QStringView str , Qt::CaseSensitivity cs ) const
QStringView first (qsizetype n ) const
QStringView last (qsizetype n ) const
QStringView sliced (qsizetype pos , qsizetype n ) const
QStringView sliced (qsizetype pos ) const
QList<QStringView> split (QStringView sep , Qt::SplitBehavior behavior , Qt::CaseSensitivity cs ) const
QList<QStringView> split (QChar sep , Qt::SplitBehavior behavior , Qt::CaseSensitivity cs ) const
QList<QStringView> split (const QRegularExpression & re , Qt::SplitBehavior behavior ) const
CFStringRef toCFString () const
double toDouble (bool * ok ) const
float toFloat (bool * ok ) const
int toInt (bool * ok , int base ) const
long toLong (bool * ok , int base ) const
qlonglong toLongLong (bool * ok , int base ) const
NSString * toNSString () const
short toShort (bool * ok , int base ) const
uint toUInt (bool * ok , int base ) const
ulong toULong (bool * ok , int base ) const
qulonglong toULongLong (bool * ok , int base ) const
ushort toUShort (bool * ok , int base ) const
decltype(qTokenize(*this, std::forward<Needle>(needle), flags...)) tokenize (Needle && sep , Flags... flags ) const

QSurfaceFormat :

void setColorSpace (const QColorSpace & colorSpace )

QTextCharFormat :

qreal baselineOffset () const
void setBaselineOffset (qreal baseline )
void setSubScriptBaseline (qreal baseline )
void setSuperScriptBaseline (qreal baseline )
qreal subScriptBaseline () const
qreal superScriptBaseline () const

QTextDocument :

qreal baselineOffset () const
void setBaselineOffset (qreal baseline )
void setSubScriptBaseline (qreal baseline )
void setSuperScriptBaseline (qreal baseline )
qreal subScriptBaseline () const
qreal superScriptBaseline () const

QThreadPool :

bool contains (const QThread * thread ) const

QTime :

QTime fromString (QStringView string , Qt::DateFormat format )
QTime fromString (QStringView string , QStringView format )
QTime fromString (const QString & string , QStringView format )

QTypeRevision :

QDataStream & operator<< (QDataStream & out , const QTypeRevision & revision )
QDataStream & operator>> (QDataStream & in , QTypeRevision & revision )

QUnhandledException :

std::exception_ptr exception () const
void swap (QUnhandledException & other )

QVarLengthArray :

QVarLengthArray<T, Prealloc> & operator= (QVarLengthArray<T, Prealloc> && other )

QVariant :

bool canConvert (QMetaType type ) const
QPartialOrdering compare (const QVariant & lhs , const QVariant & rhs )
bool convert (QMetaType targetType )
QMetaType metaType () const

QWidget :

QPointF mapFrom (const QWidget * parent , const QPointF & pos ) const
QPointF mapFromGlobal (const QPointF & pos ) const
QPointF mapFromParent (const QPointF & pos ) const
QPointF mapTo (const QWidget * parent , const QPointF & pos ) const
QPointF mapToGlobal (const QPointF & pos ) const
QPointF mapToParent (const QPointF & pos ) const

QWindow :

QPointF mapFromGlobal (const QPointF & pos ) const
QPointF mapToGlobal (const QPointF & pos ) const
virtual void paintEvent (QPaintEvent * ev )

名称空间中的新函数

void resetOpenGLState ()
QTaskBuilder<Task> task (Task && task )

新全局函数

long double qDegreesToRadians (long double degrees )
long double qRadiansToDegrees (long double radians )

新宏

QT_IMPLICIT_QCHAR_CONSTRUCTION
QT_IMPLICIT_QFILEINFO_CONSTRUCTION
Q_MOC_INCLUDE
Q_OBJECT_BINDABLE_PROPERTY ( containingClass , type , name , signal )
Q_OBJECT_BINDABLE_PROPERTY_WITH_ARGS ( containingClass , type , name , initialvalue , signal )
Q_OBJECT_COMPUTED_PROPERTY ( containingClass , type , name , callback )

新枚举类型

enum IntermediateError { ResponseCrcError, ResponseRequestMismatch }
enum WildcardConversionOption { DefaultWildcardConversion, UnanchoredWildcardConversion }
enum class AlertLevel { Warning, Fatal, Unknown }
enum class AlertType { CloseNotify, UnexpectedMessage, BadRecordMac, RecordOverflow, DecompressionFailure, …, UnknownAlertMessage }
enum class Launch { Sync, Async, Inherit }

新类型别名

iterator
QPair
iterator

新特性

新的变量

MacOSBigSur

新 QML 类型

C
CoreSettings
G
GeometryView
Q
QtTextInputMethodManager

新 QML 特性

QML Type FontLoader :

font : font

QML Type GeometryRenderer :

sortIndex : float

QML Type Item :

palette : Palette

QML Type SceneEnvironment :

tonemapMode : enumeration

QML Type 文本 :

renderTypeQuality : int

QML Type WaylandCompositor :

additionalShmFormats : list<enum>

QML Type Window :

palette : Palette