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Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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QQuickPixmapReader Class Reference
Inheritance diagram for QQuickPixmapReader:
Collaboration diagram for QQuickPixmapReader:

Public Member Functions

 QQuickPixmapReader (QQmlEngine *eng)
 ~QQuickPixmapReader ()
QQuickPixmapReplygetImage (QQuickPixmapData *)
void cancel (QQuickPixmapReply *rep)
void startJob (QQuickPixmapReply *job)
 QQuickPixmapReader (QQmlEngine *eng)
 ~QQuickPixmapReader ()
QQuickPixmapReplygetImage (QQuickPixmapData *)
void cancel (QQuickPixmapReply *rep)
void startJob (QQuickPixmapReply *job)
Public Member Functions inherited from QThread
 QThread (QObject *parent=nullptr)
 ~QThread ()
void setPriority (Priority priority)
Priority priority () const
bool isFinished () const
bool isRunning () const
void requestInterruption ()
bool isInterruptionRequested () const
void setStackSize (uint stackSize)
uint stackSize () const
QAbstractEventDispatchereventDispatcher () const
void setEventDispatcher (QAbstractEventDispatcher *eventDispatcher)
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.
int loopLevel () const
bool isCurrentThread () const noexcept
void setServiceLevel (QualityOfService serviceLevel)
QualityOfService serviceLevel () const
bool wait (QDeadlineTimer deadline=QDeadlineTimer(QDeadlineTimer::Forever))
bool wait (unsigned long time)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. time is the time to wait in milliseconds.
Public Member Functions inherited from QObject
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 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< QStringbindableObjectName ()
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 isQmlObjectType () const
 Returns whether the object has been created by the QML engine or ownership has been explicitly set via QJSEngine::setObjectOwnership().
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).
QThreadthread () const
 Returns the thread in which the object lives.
bool moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
 Changes the thread affinity for this object and its children and returns true on success.
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::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
void killTimer (int id)
 Kills the timer with timer identifier, id.
void killTimer (Qt::TimerId id)
template<typename T>
findChild (QAnyStringView aName, 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 (QAnyStringView 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>
findChild (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.
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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () const
QBindingStoragebindingStorage ()
const QBindingStoragebindingStorage () const
QObjectparent () 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.

Static Public Member Functions

static QQuickPixmapReaderinstance (QQmlEngine *engine)
static QQuickPixmapReaderexistingInstance (QQmlEngine *engine)
static QQuickPixmapReaderinstance (QQmlEngine *engine)
static QQuickPixmapReaderexistingInstance (QQmlEngine *engine)
Static Public Member Functions inherited from QThread
static Q_DECL_PURE_FUNCTION Qt::HANDLE currentThreadId () noexcept
static QThreadcurrentThread ()
static bool isMainThread () noexcept
static int idealThreadCount () noexcept
static void yieldCurrentThread ()
template<typename Function, typename... Args>
static QThreadcreate (Function &&f, Args &&... args)
static void sleep (unsigned long)
static void msleep (unsigned long)
static void usleep (unsigned long)
static void sleep (std::chrono::nanoseconds nsec)
Static Public Member Functions inherited from QObject
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)

Static Public Attributes

static QMutex readerMutex

Protected Member Functions

void run () override
void run () override
Protected Member Functions inherited from QThread
int exec ()
 QThread (QThreadPrivate &dd, QObject *parent=nullptr)
Protected Member Functions inherited from QObject
QObjectsender () 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)

Friends

class ReaderThreadExecutionEnforcer

Additional Inherited Members

Public Types inherited from QThread
enum  Priority {
  IdlePriority , LowestPriority , LowPriority , NormalPriority ,
  HighPriority , HighestPriority , TimeCriticalPriority , InheritPriority
}
enum class  QualityOfService { Auto , High , Eco }
Public Slots inherited from QThread
void start (Priority=InheritPriority)
void terminate ()
void exit (int retcode=0)
void quit ()
Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
Signals inherited from QThread
void started (QPrivateSignal)
void finished (QPrivateSignal)
Signals inherited from QObject
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.
Static Protected Member Functions inherited from QThread
static void setTerminationEnabled (bool enabled=true)
Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
Properties inherited from QObject
QString objectName
 the name of this object

Detailed Description

Definition at line 225 of file qquickpixmapcache.cpp.

Constructor & Destructor Documentation

◆ QQuickPixmapReader() [1/2]

QQuickPixmapReader::QQuickPixmapReader ( QQmlEngine * eng)

Definition at line 595 of file qquickpixmapcache.cpp.

References run().

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◆ ~QQuickPixmapReader() [1/2]

QQuickPixmapReader::~QQuickPixmapReader ( )

Definition at line 617 of file qquickpixmapcache.cpp.

References QQuickPixmapReply::data, QQuickPixmapReply::loading, ReaderThreadExecutionEnforcer::processJobsOnReaderThreadLater(), and QQuickPixmapData::reply.

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◆ QQuickPixmapReader() [2/2]

QQuickPixmapReader::QQuickPixmapReader ( QQmlEngine * eng)

◆ ~QQuickPixmapReader() [2/2]

QQuickPixmapReader::~QQuickPixmapReader ( )

Member Function Documentation

◆ cancel() [1/2]

void QQuickPixmapReader::cancel ( QQuickPixmapReply * rep)

Definition at line 1149 of file qquickpixmapcache.cpp.

References QQuickPixmapReply::data, QQuickPixmapReply::loading, and ReaderThreadExecutionEnforcer::processJobsOnReaderThreadLater().

Referenced by QQuickPixmapData::release().

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◆ cancel() [2/2]

void QQuickPixmapReader::cancel ( QQuickPixmapReply * rep)

◆ existingInstance() [1/2]

QQuickPixmapReader * QQuickPixmapReader::existingInstance ( QQmlEngine * engine)
static

Definition at line 1128 of file qquickpixmapcache.cpp.

◆ existingInstance() [2/2]

QQuickPixmapReader * QQuickPixmapReader::existingInstance ( QQmlEngine * engine)
static

◆ getImage() [1/2]

QQuickPixmapReply * QQuickPixmapReader::getImage ( QQuickPixmapData * data)

Definition at line 1134 of file qquickpixmapcache.cpp.

References QQuickPixmapReply::QQuickPixmapReply().

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◆ getImage() [2/2]

QQuickPixmapReply * QQuickPixmapReader::getImage ( QQuickPixmapData * )

◆ instance() [1/2]

QQuickPixmapReader * QQuickPixmapReader::instance ( QQmlEngine * engine)
static

Definition at line 1116 of file qquickpixmapcache.cpp.

◆ instance() [2/2]

QQuickPixmapReader * QQuickPixmapReader::instance ( QQmlEngine * engine)
static

◆ run() [1/2]

void QQuickPixmapReader::run ( void )
overrideprotectedvirtual

Reimplemented from QThread.

Definition at line 1168 of file qquickpixmapcache.cpp.

Referenced by QQuickPixmapReader().

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◆ run() [2/2]

void QQuickPixmapReader::run ( )
overrideprotectedvirtual

Reimplemented from QThread.

◆ startJob() [1/2]

void QQuickPixmapReader::startJob ( QQuickPixmapReply * job)

Definition at line 1141 of file qquickpixmapcache.cpp.

References ReaderThreadExecutionEnforcer::processJobsOnReaderThreadLater().

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◆ startJob() [2/2]

void QQuickPixmapReader::startJob ( QQuickPixmapReply * job)

◆ ReaderThreadExecutionEnforcer

Definition at line 244 of file qquickpixmapcache.cpp.

Member Data Documentation

◆ readerMutex

QMutex QQuickPixmapReader::readerMutex
static

Definition at line 294 of file qquickpixmapcache.cpp.


The documentation for this class was generated from the following file: