Qt 4.8
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#include <qnoncontiguousbytedevice_p.h>
Public Functions | |
bool | advanceReadPointer (qint64 amount) |
The old readPointer is invalid after this call. More... | |
bool | atEnd () |
Returns true if everything has been read and the read pointer cannot be advanced anymore. More... | |
QNonContiguousByteDeviceRingBufferImpl (QSharedPointer< QRingBuffer > rb) | |
const char * | readPointer (qint64 maximumLength, qint64 &len) |
Return a byte pointer for at most maximumLength bytes of that device. More... | |
bool | reset () |
Moves the internal read pointer back to the beginning. More... | |
qint64 | size () |
Returns the size of the complete device or -1 if unknown. More... | |
~QNonContiguousByteDeviceRingBufferImpl () | |
Public Functions inherited from QNonContiguousByteDevice | |
void | disableReset () |
Disable the reset() call, e. More... | |
bool | isResetDisabled () |
virtual | ~QNonContiguousByteDevice () |
Public Functions inherited from QObject | |
bool | blockSignals (bool b) |
If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More... | |
const QObjectList & | children () const |
Returns a list of child objects. More... | |
bool | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
bool | disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0) |
bool | disconnect (const QObject *receiver, const char *member=0) |
void | dumpObjectInfo () |
Dumps information about signal connections, etc. More... | |
void | dumpObjectTree () |
Dumps a tree of children to the debug output. More... | |
QList< QByteArray > | dynamicPropertyNames () const |
Returns the names of all properties that were dynamically added to the object using setProperty(). More... | |
virtual bool | event (QEvent *) |
This virtual function receives events to an object and should return true if the event e was recognized and processed. More... | |
virtual bool | eventFilter (QObject *, QEvent *) |
Filters events if this object has been installed as an event filter for the watched object. More... | |
template<typename T > | |
T | findChild (const QString &aName=QString()) const |
Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More... | |
template<typename T > | |
QList< T > | findChildren (const QString &aName=QString()) 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. More... | |
template<typename T > | |
QList< T > | findChildren (const QRegExp &re) const |
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. More... | |
void | installEventFilter (QObject *) |
Installs an event filter filterObj on this object. More... | |
bool | isWidgetType () const |
Returns true if the object is a widget; otherwise returns false. More... | |
void | killTimer (int id) |
Kills the timer with timer identifier, id. More... | |
virtual const QMetaObject * | metaObject () const |
Returns a pointer to the meta-object of this object. More... | |
void | moveToThread (QThread *thread) |
Changes the thread affinity for this object and its children. More... | |
QString | objectName () const |
QObject * | parent () const |
Returns a pointer to the parent object. More... | |
QVariant | property (const char *name) const |
Returns the value of the object's name property. More... | |
Q_INVOKABLE | QObject (QObject *parent=0) |
Constructs an object with parent object parent. More... | |
void | removeEventFilter (QObject *) |
Removes an event filter object obj from this object. More... | |
void | setObjectName (const QString &name) |
void | setParent (QObject *) |
Makes the object a child of parent. More... | |
bool | setProperty (const char *name, const QVariant &value) |
Sets the value of the object's name property to value. More... | |
void | setUserData (uint id, QObjectUserData *data) |
bool | signalsBlocked () const |
Returns true if signals are blocked; otherwise returns false. More... | |
int | startTimer (int interval) |
Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More... | |
QThread * | thread () const |
Returns the thread in which the object lives. More... | |
QObjectUserData * | userData (uint id) const |
virtual | ~QObject () |
Destroys the object, deleting all its child objects. More... | |
Protected Variables | |
qint64 | currentPosition |
QSharedPointer< QRingBuffer > | ringBuffer |
Protected Variables inherited from QNonContiguousByteDevice | |
bool | resetDisabled |
Protected Variables inherited from QObject | |
QScopedPointer< QObjectData > | d_ptr |
Additional Inherited Members | |
Public Slots inherited from QObject | |
void | deleteLater () |
Schedules this object for deletion. More... | |
Signals inherited from QNonContiguousByteDevice | |
void | readProgress (qint64 current, qint64 total) |
Emitted when data has been "read" by advancing the read pointer. More... | |
void | readyRead () |
Emitted when there is data available. More... | |
Signals inherited from QObject | |
void | destroyed (QObject *=0) |
This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More... | |
Static Public Functions inherited from QObject | |
static bool | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More... | |
static bool | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
Disconnects signal in object sender from method in object receiver. More... | |
static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
static uint | registerUserData () |
static QString | tr (const char *sourceText, const char *comment=0, int n=-1) |
static QString | trUtf8 (const char *sourceText, const char *comment=0, int n=-1) |
Static Public Variables inherited from QObject | |
static const QMetaObject | staticMetaObject |
This variable stores the meta-object for the class. More... | |
Protected Functions inherited from QNonContiguousByteDevice | |
QNonContiguousByteDevice () | |
Protected Functions inherited from QObject | |
virtual void | childEvent (QChildEvent *) |
This event handler can be reimplemented in a subclass to receive child events. More... | |
virtual void | connectNotify (const char *signal) |
This virtual function is called when something has been connected to signal in this object. More... | |
virtual void | customEvent (QEvent *) |
This event handler can be reimplemented in a subclass to receive custom events. More... | |
virtual void | disconnectNotify (const char *signal) |
This virtual function is called when something has been disconnected from signal in this object. More... | |
QObject (QObjectPrivate &dd, QObject *parent=0) | |
int | receivers (const char *signal) const |
Returns the number of receivers connected to the signal. More... | |
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 0. More... | |
int | senderSignalIndex () const |
virtual void | timerEvent (QTimerEvent *) |
This event handler can be reimplemented in a subclass to receive timer events for the object. More... | |
Static Protected Variables inherited from QObject | |
static const QMetaObject | staticQtMetaObject |
Related Functions inherited from QObject | |
T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QRegExp ®Exp)() |
T * | qobject_cast (QObject *object) |
QObjectList | |
void * | qt_find_obj_child (QObject *parent, const char *type, const QString &name) |
Returns a pointer to the object named name that inherits type and with a given parent. More... | |
Definition at line 116 of file qnoncontiguousbytedevice_p.h.
QNonContiguousByteDeviceRingBufferImpl::QNonContiguousByteDeviceRingBufferImpl | ( | QSharedPointer< QRingBuffer > | rb | ) |
Definition at line 266 of file qnoncontiguousbytedevice.cpp.
QNonContiguousByteDeviceRingBufferImpl::~QNonContiguousByteDeviceRingBufferImpl | ( | ) |
Definition at line 272 of file qnoncontiguousbytedevice.cpp.
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virtual |
The old readPointer is invalid after this call.
will advance the internal read pointer by amount bytes.
Implements QNonContiguousByteDevice.
Definition at line 291 of file qnoncontiguousbytedevice.cpp.
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virtual |
Returns true if everything has been read and the read pointer cannot be advanced anymore.
Implements QNonContiguousByteDevice.
Definition at line 298 of file qnoncontiguousbytedevice.cpp.
Referenced by readPointer().
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virtual |
Return a byte pointer for at most maximumLength bytes of that device.
if maximumLength is -1, the caller does not care about the length and the device may return what it desires to. The actual number of bytes the pointer is valid for is returned in the len variable. len will be -1 if EOF or an error occurs. If it was really EOF can then afterwards be checked with atEnd() Returns 0 if it is not possible to read at that position.
Implements QNonContiguousByteDevice.
Definition at line 276 of file qnoncontiguousbytedevice.cpp.
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Moves the internal read pointer back to the beginning.
Returns false if this was not possible.
Implements QNonContiguousByteDevice.
Definition at line 303 of file qnoncontiguousbytedevice.cpp.
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Returns the size of the complete device or -1 if unknown.
May also return less/more than what can be actually read with readPointer()
Implements QNonContiguousByteDevice.
Definition at line 312 of file qnoncontiguousbytedevice.cpp.
Referenced by advanceReadPointer(), and atEnd().
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protected |
Definition at line 128 of file qnoncontiguousbytedevice_p.h.
Referenced by advanceReadPointer(), atEnd(), readPointer(), and reset().
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protected |
Definition at line 127 of file qnoncontiguousbytedevice_p.h.
Referenced by QNonContiguousByteDeviceRingBufferImpl(), readPointer(), and size().