QQmlAbstractBinding Class Reference

#include <qqmlabstractbinding_p.h>

Inheritance diagram for QQmlAbstractBinding:

Collaboration diagram for QQmlAbstractBinding:

Classes
struct	RefCount

Public Types
enum	Kind { ValueTypeProxy , QmlBinding , PropertyToPropertyBinding }
enum	TargetTag { NoTargetTag = 0x0 , UpdatingBinding = 0x1 , BindingEnabled = 0x2 }
enum	NextBindingTag { NoBindingTag = 0x0 , AddedToObject = 0x1 , CanUseAccessor = 0x2 }
typedef QExplicitlySharedDataPointer< QQmlAbstractBinding >	Ptr

Public Member Functions
virtual	~QQmlAbstractBinding ()
virtual QString	expression () const
virtual Kind	kind () const =0
QQmlPropertyIndex	targetPropertyIndex () const
QObject *	targetObject () const
void	setTarget (const QQmlProperty &)
bool	setTarget (QObject *, const QQmlPropertyData &, const QQmlPropertyData *valueType)
bool	setTarget (QObject *, int coreIndex, bool coreIsAlias, int valueTypeIndex)
virtual void	setEnabled (bool e, QQmlPropertyData::WriteFlags f=QQmlPropertyData::DontRemoveBinding)=0
void	addToObject ()
	Add this binding to object.
void	removeFromObject ()
	Remove the binding from the object.
QQmlAbstractBinding *	nextBinding () const
bool	canUseAccessor () const
void	setCanUseAccessor (bool canUseAccessor)

Static Public Member Functions
static void	printBindingLoopError (const QQmlProperty &prop)

Public Attributes
RefCount	ref

Protected Member Functions
	QQmlAbstractBinding ()
void	setAddedToObject (bool v)
bool	isAddedToObject () const
void	setNextBinding (QQmlAbstractBinding *)
void	getPropertyData (const QQmlPropertyData **propertyData, QQmlPropertyData *valueTypeData) const
bool	updatingFlag () const
void	setUpdatingFlag (bool)
bool	enabledFlag () const
void	setEnabledFlag (bool)
void	updateCanUseAccessor ()

Protected Attributes
QQmlPropertyIndex	m_targetIndex
QTaggedPointer< QObject, TargetTags >	m_target
QTaggedPointer< QQmlAbstractBinding, NextBindingTags >	m_nextBinding

Friends
class	QQmlAnyBinding
class	QQmlData
class	QQmlValueTypeProxyBinding
class	QQmlObjectCreator

Detailed Description

Definition at line 28 of file qqmlabstractbinding_p.h.

Member Typedef Documentation

Ptr

typedef QExplicitlySharedDataPointer<QQmlAbstractBinding> QQmlAbstractBinding::Ptr

Definition at line 42 of file qqmlabstractbinding_p.h.

Member Enumeration Documentation

Kind

enum QQmlAbstractBinding::Kind

Enumerator
ValueTypeProxy
QmlBinding
PropertyToPropertyBinding

Definition at line 34 of file qqmlabstractbinding_p.h.

NextBindingTag

enum QQmlAbstractBinding::NextBindingTag

Enumerator
NoBindingTag
AddedToObject
CanUseAccessor

Definition at line 91 of file qqmlabstractbinding_p.h.

TargetTag

enum QQmlAbstractBinding::TargetTag

Enumerator
NoTargetTag
UpdatingBinding
BindingEnabled

Definition at line 84 of file qqmlabstractbinding_p.h.

Constructor & Destructor Documentation

QQmlAbstractBinding()

QT_BEGIN_NAMESPACE QQmlAbstractBinding::QQmlAbstractBinding ( )

protected

Definition at line 13 of file qqmlabstractbinding.cpp.

References isAddedToObject(), and Q_ASSERT.

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~QQmlAbstractBinding()

QQmlAbstractBinding::~QQmlAbstractBinding ( )

virtual

Definition at line 19 of file qqmlabstractbinding.cpp.

References QTaggedPointer< T, Tag >::data(), QQmlAbstractBinding::RefCount::deref(), isAddedToObject(), m_nextBinding, Q_ASSERT, and ref.

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Member Function Documentation

addToObject()

void QQmlAbstractBinding::addToObject

(

)

Add this binding to object.

This transfers ownership of the binding to the object, marks the object's property as being bound.

However, it does not enable the binding itself or call update() on it.

Definition at line 36 of file qqmlabstractbinding.cpp.

References QQmlPropertyIndex::coreIndex(), QQmlData::get(), isAddedToObject(), nextBinding(), proxy, Q_ASSERT, QQmlValueTypeProxyBinding, setAddedToObject(), setNextBinding(), targetObject(), targetPropertyIndex(), and ValueTypeProxy.

Referenced by QQmlPropertyPrivate::setBinding().

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canUseAccessor()

bool QQmlAbstractBinding::canUseAccessor ( ) const

inline

Definition at line 70 of file qqmlabstractbinding_p.h.

Referenced by QQmlBinding::update(), and QQmlPropertyToPropertyBinding::update().

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enabledFlag()

bool QQmlAbstractBinding::enabledFlag ( ) const

inlineprotected

Definition at line 163 of file qqmlabstractbinding_p.h.

References BindingEnabled, m_target, and QTaggedPointer< T, Tag >::tag().

Referenced by QQmlPropertyToPropertyBinding::setEnabled(), QQmlBinding::setEnabled(), QQmlBinding::update(), and QQmlPropertyToPropertyBinding::update().

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expression()

QString QQmlAbstractBinding::expression ( ) const

virtual

Reimplemented in QQmlBinding.

Definition at line 282 of file qqmlabstractbinding.cpp.

getPropertyData()

void QQmlAbstractBinding::getPropertyData ( const QQmlPropertyData **  propertyData, QQmlPropertyData *  valueTypeData  ) const

protected

Definition at line 163 of file qqmlabstractbinding.cpp.

References QQmlPropertyIndex::coreIndex(), QTaggedPointer< T, Tag >::data(), QQmlPropertyData::flagsForProperty(), QQmlData::get(), QQmlPropertyIndex::hasValueTypeIndex(), m_target, m_targetIndex, QQmlMetaType::metaObjectForValueType(), QMetaProperty::metaType(), QMetaObject::property(), QQmlMetaType::propertyCache(), Q_ASSERT, Q_UNLIKELY, QQmlPropertyData::setCoreIndex(), QQmlPropertyData::setFlags(), QQmlPropertyData::setPropType(), and QQmlPropertyIndex::valueTypeIndex().

Referenced by QQmlTranslationBinding::doUpdate(), QQmlBinding::update(), QQmlPropertyToPropertyBinding::update(), GenericBinding< StaticPropType >::write(), QObjectPointerBinding::write(), GenericBinding< StaticPropType >::write(), and QObjectPointerBinding::write().

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isAddedToObject()

bool QQmlAbstractBinding::isAddedToObject ( ) const

inlineprotected

Definition at line 134 of file qqmlabstractbinding_p.h.

References AddedToObject, m_nextBinding, and QTaggedPointer< T, Tag >::tag().

Referenced by QQmlAbstractBinding(), ~QQmlAbstractBinding(), addToObject(), QQmlBinding::doUpdate(), QQmlTranslationBinding::doUpdate(), and removeFromObject().

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kind()

virtual Kind QQmlAbstractBinding::kind ( ) const

pure virtual

Implemented in QQmlBinding, QQmlPropertyToPropertyBinding, and QQmlValueTypeProxyBinding.

Referenced by QQmlPropertyPrivate::binding(), removeFromObject(), removeOldBinding(), and QQuickStateGroupPrivate::updateAutoState().

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nextBinding()

QQmlAbstractBinding * QQmlAbstractBinding::nextBinding ( ) const

inline

Definition at line 139 of file qqmlabstractbinding_p.h.

References QTaggedPointer< T, Tag >::data(), and m_nextBinding.

Referenced by QQmlValueTypeProxyBinding::~QQmlValueTypeProxyBinding(), addToObject(), QQmlPropertyPrivate::binding(), QQmlValueTypeProxyBinding::binding(), QQmlData::destroyed(), QQmlData::flushPendingBinding(), QQmlValueTypeProxyBinding::removeBindings(), removeFromObject(), and removeOldBinding().

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printBindingLoopError()

void QQmlAbstractBinding::printBindingLoopError ( const QQmlProperty &  prop )

static

Definition at line 158 of file qqmlabstractbinding.cpp.

References QString::arg(), QQmlProperty::name, QQmlProperty::object, and qmlWarning().

Referenced by QQmlBinding::update(), and QQmlPropertyToPropertyBinding::update().

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removeFromObject()

void QQmlAbstractBinding::removeFromObject

(

)

Remove the binding from the object.

Definition at line 92 of file qqmlabstractbinding.cpp.

References QQmlPropertyIndex::coreIndex(), QExplicitlySharedDataPointer< T >::data(), QQmlData::get(), QQmlPropertyIndex::hasValueTypeIndex(), isAddedToObject(), kind(), next, nextBinding(), Q_ASSERT, setAddedToObject(), setNextBinding(), targetObject(), targetPropertyIndex(), and ValueTypeProxy.

Referenced by QQmlObjectCreator::finalize().

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setAddedToObject()

void QQmlAbstractBinding::setAddedToObject ( bool  v )

inlineprotected

Definition at line 129 of file qqmlabstractbinding_p.h.

Referenced by QQmlValueTypeProxyBinding::~QQmlValueTypeProxyBinding(), addToObject(), QQmlData::destroyed(), and removeFromObject().

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setCanUseAccessor()

void QQmlAbstractBinding::setCanUseAccessor ( bool  canUseAccessor )

inline

Definition at line 72 of file qqmlabstractbinding_p.h.

Referenced by updateCanUseAccessor().

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setEnabled()

virtual void QQmlAbstractBinding::setEnabled ( bool  e, QQmlPropertyData::WriteFlags  f = QQmlPropertyData::DontRemoveBinding  )

pure virtual

Implemented in QQmlPropertyToPropertyBinding, QQmlBinding, and QQmlValueTypeProxyBinding.

Referenced by QQuickPropertyChanges::changeValue(), QQmlData::flushPendingBinding(), removeOldBinding(), QQmlPropertyPrivate::setBinding(), and QQmlValueTypeProxyBinding::setEnabled().

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setEnabledFlag()

void QQmlAbstractBinding::setEnabledFlag ( bool  v )

inlineprotected

Definition at line 168 of file qqmlabstractbinding_p.h.

References BindingEnabled, m_target, QTaggedPointer< T, Tag >::setTag(), and QTaggedPointer< T, Tag >::tag().

Referenced by QQmlPropertyToPropertyBinding::setEnabled(), and QQmlBinding::setEnabled().

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setNextBinding()

void QQmlAbstractBinding::setNextBinding ( QQmlAbstractBinding *  b )

inlineprotected

Definition at line 144 of file qqmlabstractbinding_p.h.

References QTaggedPointer< T, Tag >::data(), QQmlAbstractBinding::RefCount::deref(), m_nextBinding, and ref.

Referenced by addToObject(), QQmlValueTypeProxyBinding::removeBindings(), and removeFromObject().

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setTarget() [1/3]

void QQmlAbstractBinding::setTarget

(

const QQmlProperty &

prop

)

Definition at line 197 of file qqmlabstractbinding.cpp.

References QQmlPropertyPrivate::get(), QQmlProperty::object, and setTarget().

Referenced by QQmlPropertyToPropertyBinding::QQmlPropertyToPropertyBinding(), QQmlCppBinding::createBindingForNonBindable(), QQmlCppBinding::createTranslationBindingForNonBindable(), QV4::QObjectWrapper::setProperty(), setTarget(), setTarget(), and QV4::QQmlValueTypeWrapper::virtualPut().

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setTarget() [2/3]

bool QQmlAbstractBinding::setTarget	(	QObject *	object,
		const QQmlPropertyData &	core,
		const QQmlPropertyData *	valueType
	)

Definition at line 203 of file qqmlabstractbinding.cpp.

References QQmlPropertyData::coreIndex(), QQmlPropertyData::isAlias(), and setTarget().

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setTarget() [3/3]

bool QQmlAbstractBinding::setTarget	(	QObject *	object,
		int	coreIndex,
		bool	coreIsAlias,
		int	valueTypeIndex
	)

Definition at line 227 of file qqmlabstractbinding.cpp.

References QQmlVMEMetaObject::aliasTarget(), QQmlPropertyData::coreIndex(), QTaggedPointer< T, Tag >::data(), QMetaType::flags(), QQmlData::get(), QQmlVMEMetaObject::getForProperty(), getObjectPropertyData(), QQmlPropertyData::isAlias(), m_target, m_targetIndex, QMetaType::PointerToQObject, QQmlMetaType::propertyCache(), QQmlPropertyData::propType(), and QQmlPropertyData::readProperty().

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setUpdatingFlag()

void QQmlAbstractBinding::setUpdatingFlag ( bool  v )

inlineprotected

Definition at line 158 of file qqmlabstractbinding_p.h.

References m_target, QTaggedPointer< T, Tag >::setTag(), QTaggedPointer< T, Tag >::tag(), and UpdatingBinding.

Referenced by QQmlBinding::update(), and QQmlPropertyToPropertyBinding::update().

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targetObject()

QObject * QQmlAbstractBinding::targetObject ( ) const

inline

Definition at line 55 of file qqmlabstractbinding_p.h.

Referenced by QQmlPropertyToPropertyBinding::QQmlPropertyToPropertyBinding(), addToObject(), GenericBinding< StaticPropType >::doStore(), QQmlTranslationBinding::doUpdate(), removeFromObject(), QQmlPropertyPrivate::setBinding(), QQmlBinding::update(), QQmlPropertyToPropertyBinding::update(), updateCanUseAccessor(), GenericBinding< StaticPropType >::write(), QObjectPointerBinding::write(), GenericBinding< StaticPropType >::write(), and QObjectPointerBinding::write().

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targetPropertyIndex()

QQmlPropertyIndex QQmlAbstractBinding::targetPropertyIndex ( ) const

inline

Definition at line 51 of file qqmlabstractbinding_p.h.

Referenced by QQmlPropertyToPropertyBinding::QQmlPropertyToPropertyBinding(), addToObject(), QQmlPropertyPrivate::binding(), QQmlValueTypeProxyBinding::binding(), QQmlValueTypeProxyBinding::removeBindings(), removeFromObject(), removeOldBinding(), and QQmlPropertyPrivate::setBinding().

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updateCanUseAccessor()

void QQmlAbstractBinding::updateCanUseAccessor ( )

protected

Definition at line 188 of file qqmlabstractbinding.cpp.

References QQmlInterceptorMetaObject::get(), QQmlPropertyIndex::isValid(), m_targetIndex, setCanUseAccessor(), and targetObject().

Referenced by QQmlPropertyToPropertyBinding::setEnabled(), and QQmlBinding::setEnabled().

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updatingFlag()

bool QQmlAbstractBinding::updatingFlag ( ) const

inlineprotected

Definition at line 153 of file qqmlabstractbinding_p.h.

References m_target, QTaggedPointer< T, Tag >::tag(), and UpdatingBinding.

Referenced by QQmlBinding::update(), and QQmlPropertyToPropertyBinding::update().

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Friends And Related Symbol Documentation

QQmlAnyBinding

friend class QQmlAnyBinding

friend

Definition at line 30 of file qqmlabstractbinding_p.h.

QQmlData

friend class QQmlData

friend

Definition at line 99 of file qqmlabstractbinding_p.h.

QQmlObjectCreator

friend class QQmlObjectCreator

friend

Definition at line 101 of file qqmlabstractbinding_p.h.

QQmlValueTypeProxyBinding

friend class QQmlValueTypeProxyBinding

friend

Definition at line 100 of file qqmlabstractbinding_p.h.

Referenced by addToObject().

Member Data Documentation

m_nextBinding

QTaggedPointer<QQmlAbstractBinding, NextBindingTags> QQmlAbstractBinding::m_nextBinding

protected

Definition at line 123 of file qqmlabstractbinding_p.h.

Referenced by ~QQmlAbstractBinding(), isAddedToObject(), nextBinding(), and setNextBinding().

m_target

QTaggedPointer<QObject, TargetTags> QQmlAbstractBinding::m_target

protected

Definition at line 120 of file qqmlabstractbinding_p.h.

Referenced by QQmlValueTypeProxyBinding::QQmlValueTypeProxyBinding(), QQmlBinding::dependencies(), QQmlBinding::doUpdate(), enabledFlag(), getPropertyData(), setEnabledFlag(), setTarget(), setUpdatingFlag(), QQmlBinding::slowWrite(), QQmlBinding::slowWrite(), updatingFlag(), and GenericBinding< StaticPropType >::write().

m_targetIndex

QQmlPropertyIndex QQmlAbstractBinding::m_targetIndex

protected

Definition at line 117 of file qqmlabstractbinding_p.h.

Referenced by QQmlValueTypeProxyBinding::QQmlValueTypeProxyBinding(), getPropertyData(), setTarget(), and updateCanUseAccessor().

ref

RefCount QQmlAbstractBinding::ref

Definition at line 82 of file qqmlabstractbinding_p.h.

Referenced by ~QQmlAbstractBinding(), QQmlData::destroyed(), QQmlAnyBinding::operator=(), QQmlAnyBinding::operator=(), QQmlPropertyPrivate::setBinding(), and setNextBinding().

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

• qtdeclarative/src/qml/qml/qqmlabstractbinding_p.h
• qtdeclarative/src/qml/qml/qqmlabstractbinding.cpp