#include <qdeclarativeboundsignal_p.h>

Inheritance diagram for QDeclarativeBoundSignal:

Classes
class	ScopeGuard

Public Functions
void	disconnect ()

QDeclarativeExpression *	expression () const
	Returns the signal expression. More...

int	index () const

bool	isEvaluating () const

	QDeclarativeBoundSignal (QObject scope, const QMetaMethod &signal, QObject parent)

	QDeclarativeBoundSignal (QDeclarativeContext ctxt, const QString &val, QObject scope, const QMetaMethod &signal, QObject *parent)

QDeclarativeExpression *	setExpression (QDeclarativeExpression *)
	Sets the signal expression to e. More...

virtual	~QDeclarativeBoundSignal ()

Public Functions inherited from QDeclarativeAbstractBoundSignal
	QDeclarativeAbstractBoundSignal (QObject *parent=0)

virtual	~QDeclarativeAbstractBoundSignal ()=0

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...

Static Public Functions
static QDeclarativeBoundSignal *	cast (QObject *)

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)

Protected Functions
virtual int	qt_metacall (QMetaObject::Call c, int id, void **a)

void	unregisterScopeObject ()

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...

Private Functions
void	init (QObject *parent)

Properties
QDeclarativeExpression *	m_expression

bool	m_isEvaluating: 1

QDeclarativeBoundSignalParameters *	m_params

bool	m_paramsValid: 1

ScopeGuard	m_scope

QMetaMethod	m_signal

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. 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 Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Protected Slots inherited from QDeclarativeAbstractBoundSignal
Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

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 &regExp)()

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...

Detailed Description

Definition at line 78 of file qdeclarativeboundsignal_p.h.

Constructors and Destructors

◆ QDeclarativeBoundSignal() [1/2]

QDeclarativeBoundSignal::QDeclarativeBoundSignal	(	QObject *	scope,
		const QMetaMethod &	signal,
		QObject *	parent
	)

Definition at line 98 of file qdeclarativeboundsignal.cpp.

 : m_expression(0), m_signal(signal), m_paramsValid(false), m_isEvaluating(false), m_params(0),
   m_scope(scope, this)
 {
     init(parent);
 }

◆ QDeclarativeBoundSignal() [2/2]

QDeclarativeBoundSignal::QDeclarativeBoundSignal	(	QDeclarativeContext *	ctxt,
		const QString &	val,
		QObject *	scope,
		const QMetaMethod &	signal,
		QObject *	parent
	)

Definition at line 106 of file qdeclarativeboundsignal.cpp.

 : m_expression(0), m_signal(signal), m_paramsValid(false), m_isEvaluating(false), m_params(0),
   m_scope(scope, this)
 {
     init(parent);
     m_expression = new QDeclarativeExpression(ctxt, scope, val);
 }

◆ ~QDeclarativeBoundSignal()

QDeclarativeBoundSignal::~QDeclarativeBoundSignal ( )

virtual

Definition at line 130 of file qdeclarativeboundsignal.cpp.

 {
     unregisterScopeObject();
     delete m_expression;
     m_expression = 0;
 }

Functions

◆ cast()

QDeclarativeBoundSignal * QDeclarativeBoundSignal::cast ( QObject * o )

static

Definition at line 174 of file qdeclarativeboundsignal.cpp.

Referenced by QDeclarativeEngineDebugService::buildObjectDump(), QDeclarativePropertyPrivate::setSignalExpression(), and QDeclarativePropertyPrivate::signalExpression().

 {
     QDeclarativeAbstractBoundSignal *s = qobject_cast<QDeclarativeAbstractBoundSignal*>(o);
     return static_cast<QDeclarativeBoundSignal *>(s);
 }

◆ disconnect()

void QDeclarativeBoundSignal::disconnect ( )

virtual

Implements QDeclarativeAbstractBoundSignal.

Definition at line 137 of file qdeclarativeboundsignal.cpp.

 {
     QMetaObject::disconnect(m_scope, m_signal.methodIndex(), this, evaluateIdx);
     QObjectPrivate * const priv = QObjectPrivate::get(m_scope);
     QVarLengthArray<char> signalSignature;
     QObjectPrivate::signalSignature(m_signal, &signalSignature);
     priv->disconnectNotify(signalSignature.constData());
 }

◆ expression()

QDeclarativeExpression * QDeclarativeBoundSignal::expression ( ) const

Returns the signal expression.

Definition at line 154 of file qdeclarativeboundsignal.cpp.

Referenced by QDeclarativeEngineDebugService::buildObjectDump(), and QDeclarativePropertyPrivate::signalExpression().

 {
     return m_expression;
 }

◆ index()

int QDeclarativeBoundSignal::index ( ) const

Definition at line 146 of file qdeclarativeboundsignal.cpp.

Referenced by QDeclarativeEngineDebugService::buildObjectDump(), QDeclarativePropertyPrivate::setSignalExpression(), and QDeclarativePropertyPrivate::signalExpression().

 { 
     return m_signal.methodIndex();
 }

◆ init()

void QDeclarativeBoundSignal::init ( QObject * parent )

private

Definition at line 116 of file qdeclarativeboundsignal.cpp.

Referenced by QDeclarativeBoundSignal().

 {
     // This is thread safe.  Although it may be updated by two threads, they
     // will both set it to the same value - so the worst thing that can happen
     // is that they both do the work to figure it out.  Boo hoo.
     if (evaluateIdx == -1) evaluateIdx = metaObject()->methodCount();
 
     QDeclarative_setParent_noEvent(this, parent);
     QDeclarativePropertyPrivate::connect(m_scope, m_signal.methodIndex(), this, evaluateIdx);
 
     QDeclarativeData * const data = QDeclarativeData::get(m_scope, true);
     data->addBoundSignal(this);
 }

◆ isEvaluating()

bool QDeclarativeBoundSignal::isEvaluating ( ) const

inline

Definition at line 93 of file qdeclarativeboundsignal_p.h.

Referenced by QDeclarativeConnections::setTarget().

93 { return m_isEvaluating; }

QDeclarativeBoundSignal::m_isEvaluating

bool m_isEvaluating

Definition: qdeclarativeboundsignal_p.h:124

◆ qt_metacall()

int QDeclarativeBoundSignal::qt_metacall	(	QMetaObject::Call	c,
		int	id,
		void **	a
	)

protectedvirtual

Definition at line 180 of file qdeclarativeboundsignal.cpp.

 {
     if (c == QMetaObject::InvokeMetaMethod && id == evaluateIdx) {
         if (!m_expression)
             return -1;
         if (QDeclarativeDebugService::isDebuggingEnabled()) {
             QDeclarativeDebugTrace::startRange(QDeclarativeDebugTrace::HandlingSignal);
             QDeclarativeDebugTrace::rangeData(QDeclarativeDebugTrace::HandlingSignal, QLatin1String(m_signal.signature()) % QLatin1String(": ") % m_expression->expression());
             QDeclarativeDebugTrace::rangeLocation(QDeclarativeDebugTrace::HandlingSignal, m_expression->sourceFile(), m_expression->lineNumber());
         }
         m_isEvaluating = true;
         if (!m_paramsValid) {
             if (!m_signal.parameterTypes().isEmpty())
                 m_params = new QDeclarativeBoundSignalParameters(m_signal, this);
             m_paramsValid = true;
         }
 
         if (m_params) m_params->setValues(a);
         if (m_expression && m_expression->engine()) {
             QDeclarativeExpressionPrivate::get(m_expression)->value(m_params);
             if (m_expression && m_expression->hasError())
                 QDeclarativeEnginePrivate::warning(m_expression->engine(), m_expression->error());
         }
         if (m_params) m_params->clearValues();
         m_isEvaluating = false;
         QDeclarativeDebugTrace::endRange(QDeclarativeDebugTrace::HandlingSignal);
         return -1;
     } else {
         return QObject::qt_metacall(c, id, a);
     }
 }

◆ setExpression()

QDeclarativeExpression * QDeclarativeBoundSignal::setExpression ( QDeclarativeExpression * e )

Sets the signal expression to e.

Returns the current signal expression, or null if there is no signal expression.

The QDeclarativeBoundSignal instance takes ownership of e. The caller is assumes ownership of the returned QDeclarativeExpression.

Definition at line 166 of file qdeclarativeboundsignal.cpp.

Referenced by QDeclarativeConnections::connectSignals(), and QDeclarativePropertyPrivate::setSignalExpression().

 {
     QDeclarativeExpression *rv = m_expression;
     m_expression = e;
     if (m_expression) m_expression->setNotifyOnValueChanged(false);
     return rv;
 }

◆ unregisterScopeObject()

void QDeclarativeBoundSignal::unregisterScopeObject ( )

protectedvirtual

Implements QDeclarativeAbstractBoundSignal.

Definition at line 212 of file qdeclarativeboundsignal.cpp.

Referenced by ~QDeclarativeBoundSignal().

 {
     if (m_scope) {
         QDeclarativeData * const data = QDeclarativeData::get(m_scope, false);
         if (data)
             data->removeBoundSignal(this);
     }
 }