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Qt 6.x
The Qt SDK
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Classes | |
class | Event |
Public Types | |
enum | ReadError { NoError , Loading , Decoding } |
Signals | |
void | finished () |
void | downloadProgress (qint64, qint64) |
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void | destroyed (QObject *=nullptr) |
This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked. | |
void | objectNameChanged (const QString &objectName, QPrivateSignal) |
This signal is emitted after the object's name has been changed. | |
Public Member Functions | |
QQuickPixmapReply (QQuickPixmapData *) | |
~QQuickPixmapReply () | |
void | postReply (ReadError, const QString &, const QSize &, QQuickTextureFactory *factory) |
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Q_INVOKABLE | QObject (QObject *parent=nullptr) |
Constructs an object with parent object parent. | |
virtual | ~QObject () |
Destroys the object, deleting all its child objects. | |
virtual bool | event (QEvent *event) |
This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
virtual bool | eventFilter (QObject *watched, QEvent *event) |
Filters events if this object has been installed as an event filter for the watched object. | |
QString | objectName () const |
Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
Sets the object's name to name. | |
void | setObjectName (QAnyStringView name) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
QBindable< QString > | bindableObjectName () |
bool | isWidgetType () const |
Returns true if the object is a widget; otherwise returns false . | |
bool | isWindowType () const |
Returns true if the object is a window; otherwise returns false . | |
bool | isQuickItemType () const |
Returns true if the object is a QQuickItem; otherwise returns false . | |
bool | signalsBlocked () const noexcept |
Returns true if signals are blocked; otherwise returns false . | |
bool | blockSignals (bool b) noexcept |
If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). | |
QThread * | thread () const |
Returns the thread in which the object lives. | |
void | moveToThread (QThread *thread) |
Changes the thread affinity for this object and its children. | |
int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds. | |
int | startTimer (std::chrono::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
void | killTimer (int id) |
Kills the timer with timer identifier, id. | |
template<typename T > | |
T | findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object. | |
template<typename T > | |
QList< T > | findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. | |
template<typename T > | |
QList< T > | findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
const QObjectList & | children () const |
Returns a list of child objects. | |
void | setParent (QObject *parent) |
Makes the object a child of parent. | |
void | installEventFilter (QObject *filterObj) |
Installs an event filter filterObj on this object. | |
void | removeEventFilter (QObject *obj) |
Removes an event filter object obj from this object. | |
QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
void | dumpObjectTree () const |
Dumps a tree of children to the debug output. | |
void | dumpObjectInfo () const |
Dumps information about signal connections, etc. | |
bool | setProperty (const char *name, const QVariant &value) |
Sets the value of the object's name property to value. | |
bool | setProperty (const char *name, QVariant &&value) |
QVariant | property (const char *name) const |
Returns the value of the object's name property. | |
QList< QByteArray > | dynamicPropertyNames () const |
QBindingStorage * | bindingStorage () |
const QBindingStorage * | bindingStorage () const |
QObject * | parent () const |
Returns a pointer to the parent object. | |
bool | inherits (const char *classname) const |
Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false . | |
Public Attributes | |
QQuickPixmapData * | data |
QQmlEngine * | engineForReader |
QRect | requestRegion |
QSize | requestSize |
QUrl | url |
bool | loading |
QQuickImageProviderOptions | providerOptions |
Static Public Attributes | |
static int | finishedMethodIndex = -1 |
static int | downloadProgressMethodIndex = -1 |
Protected Member Functions | |
bool | event (QEvent *event) override |
This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
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QObject * | sender () const |
Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr. | |
int | senderSignalIndex () const |
int | receivers (const char *signal) const |
Returns the number of receivers connected to the signal. | |
bool | isSignalConnected (const QMetaMethod &signal) const |
virtual void | timerEvent (QTimerEvent *event) |
This event handler can be reimplemented in a subclass to receive timer events for the object. | |
virtual void | childEvent (QChildEvent *event) |
This event handler can be reimplemented in a subclass to receive child events. | |
virtual void | customEvent (QEvent *event) |
This event handler can be reimplemented in a subclass to receive custom events. | |
virtual void | connectNotify (const QMetaMethod &signal) |
virtual void | disconnectNotify (const QMetaMethod &signal) |
QObject (QObjectPrivate &dd, QObject *parent=nullptr) | |
Additional Inherited Members | |
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void | deleteLater () |
\threadsafe | |
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static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
\threadsafe | |
static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
template<typename Func1 , typename Func2 > | |
static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection) |
template<typename Func1 , typename Func2 > | |
static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot) |
static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
\threadsafe | |
static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
static bool | disconnect (const QMetaObject::Connection &) |
Disconnect a connection. | |
template<typename Func1 , typename Func2 > | |
static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot) |
template<typename Func1 > | |
static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero) |
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QScopedPointer< QObjectData > | d_ptr |
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QString | objectName |
the name of this object | |
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template< class T > T | qobject_cast (const QObject *object) |
Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr. | |
template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
QObjectList | |
\macro Q_CLASSINFO(Name, Value) | |
Definition at line 129 of file qquickpixmapcache.cpp.
Enumerator | |
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NoError | |
Loading | |
Decoding |
Definition at line 133 of file qquickpixmapcache.cpp.
QQuickPixmapReply::QQuickPixmapReply | ( | QQuickPixmapData * | d | ) |
Definition at line 1335 of file qquickpixmapcache.cpp.
References downloadProgress(), downloadProgressMethodIndex, finished(), finishedMethodIndex, QMetaMethod::fromSignal(), and QMetaMethod::methodIndex().
QQuickPixmapReply::~QQuickPixmapReply | ( | ) |
Definition at line 1346 of file qquickpixmapcache.cpp.
Referenced by QQuickPixmapReply(), and QQuickPixmapReader::run().
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overrideprotectedvirtual |
This virtual function receives events to an object and should return true if the event e was recognized and processed.
The event() function can be reimplemented to customize the behavior of an object.
Make sure you call the parent event class implementation for all the events you did not handle.
Example:
Reimplemented from QObject.
Definition at line 1352 of file qquickpixmapcache.cpp.
References emit, QQuickPixmapReply::Event::error, QQuickPixmap::Error, QQuickPixmapReply::Event::errorString, QObject::event(), finished(), QQuickPixmapReply::Event::implicitSize, NoError, PIXMAP_PROFILE, QQuickPixmap::Ready, QQuickPixmapReply::Event::textureFactory, url, and QEvent::User.
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signal |
Referenced by QQuickPixmapReply(), event(), and QQuickPixmap::loadImageFromDevice().
void QQuickPixmapReply::postReply | ( | ReadError | error, |
const QString & | errorString, | ||
const QSize & | implicitSize, | ||
QQuickTextureFactory * | factory | ||
) |
Definition at line 401 of file qquickpixmapcache.cpp.
References error, factory, loading, and QCoreApplication::postEvent().
QQuickPixmapData* QQuickPixmapReply::data |
Definition at line 138 of file qquickpixmapcache.cpp.
Referenced by QQuickPixmapData::release().
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static |
Definition at line 172 of file qquickpixmapcache.cpp.
Referenced by QQuickPixmapReply(), and QQuickPixmap::connectDownloadProgress().
QQmlEngine* QQuickPixmapReply::engineForReader |
Definition at line 139 of file qquickpixmapcache.cpp.
Referenced by QQuickPixmapData::release().
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static |
Definition at line 171 of file qquickpixmapcache.cpp.
Referenced by QQuickPixmapReply(), and QQuickPixmap::connectFinished().
bool QQuickPixmapReply::loading |
Definition at line 144 of file qquickpixmapcache.cpp.
Referenced by postReply().
QQuickImageProviderOptions QQuickPixmapReply::providerOptions |
Definition at line 145 of file qquickpixmapcache.cpp.
Referenced by readImage().
QRect QQuickPixmapReply::requestRegion |
Definition at line 140 of file qquickpixmapcache.cpp.
Referenced by readImage().
QSize QQuickPixmapReply::requestSize |
Definition at line 141 of file qquickpixmapcache.cpp.
Referenced by readImage().
QUrl QQuickPixmapReply::url |
Definition at line 142 of file qquickpixmapcache.cpp.
Referenced by event(), and readImage().