#include <qdeclarativevisualitemmodel_p.h>

Inheritance diagram for QDeclarativeVisualDataModel:

Signals
void	createdPackage (int index, QDeclarativePackage *package)

void	destroyingPackage (QDeclarativePackage *package)

void	rootIndexChanged ()

Signals inherited from QDeclarativeVisualModel
void	countChanged ()

void	createdItem (int index, QDeclarativeItem *item)

void	destroyingItem (QDeclarativeItem *item)

void	itemsChanged (int index, int count)

void	itemsInserted (int index, int count)

void	itemsMoved (int from, int to, int count)

void	itemsRemoved (int index, int count)

void	modelReset ()

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...

Public Functions
void	completeItem ()

bool	completePending () const

int	count () const

QDeclarativeComponent *	delegate () const

int	indexOf (QDeclarativeItem item, QObject objectContext) const

bool	isValid () const

QDeclarativeItem *	item (int index, bool complete=true)

QDeclarativeItem *	item (int index, const QByteArray &, bool complete=true)

QVariant	model () const

Q_INVOKABLE QVariant	modelIndex (int idx) const

Q_INVOKABLE QVariant	parentModelIndex () const

QString	part () const

QObject *	parts ()

	QDeclarativeVisualDataModel ()

	QDeclarativeVisualDataModel (QDeclarativeContext , QObject parent=0)

ReleaseFlags	release (QDeclarativeItem *item)

QVariant	rootIndex () const

void	setDelegate (QDeclarativeComponent *)

void	setModel (const QVariant &)

void	setPart (const QString &)

void	setRootIndex (const QVariant &root)

virtual void	setWatchedRoles (QList< QByteArray > roles)

virtual QString	stringValue (int index, const QString &role)

virtual	~QDeclarativeVisualDataModel ()

Public Functions inherited from QDeclarativeVisualModel
virtual	~QDeclarativeVisualModel ()

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...

Private Slots
void	_q_createdPackage (int index, QDeclarativePackage *package)

void	_q_dataChanged (const QModelIndex &, const QModelIndex &)

void	_q_destroyingPackage (QDeclarativePackage *package)

void	_q_itemsChanged (int, int, const QList< int > &)

void	_q_itemsInserted (int index, int count)

void	_q_itemsMoved (int from, int to, int count)

void	_q_itemsRemoved (int index, int count)

void	_q_layoutChanged ()

void	_q_modelReset ()

void	_q_rowsInserted (const QModelIndex &, int, int)

void	_q_rowsMoved (const QModelIndex &, int, int, const QModelIndex &, int)

void	_q_rowsRemoved (const QModelIndex &, int, int)

Properties
QDeclarativeComponent *	delegate

QVariant	model

QString	part

QObject *	parts

QVariant	rootIndex

Additional Inherited Members
Public Types inherited from QDeclarativeVisualModel
enum	ReleaseFlag { Referenced = 0x01, Destroyed = 0x02 }

Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. 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 QDeclarativeVisualModel
	QDeclarativeVisualModel (QObjectPrivate &dd, QObject *parent=0)

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...

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 141 of file qdeclarativevisualitemmodel_p.h.

Constructors and Destructors

◆ QDeclarativeVisualDataModel() [1/2]

QDeclarativeVisualDataModel::QDeclarativeVisualDataModel ( )

Definition at line 673 of file qdeclarativevisualitemmodel.cpp.

 : QDeclarativeVisualModel(*(new QDeclarativeVisualDataModelPrivate(0)))
 {
 }

◆ QDeclarativeVisualDataModel() [2/2]

QDeclarativeVisualDataModel::QDeclarativeVisualDataModel	(	QDeclarativeContext *	ctxt,
		QObject *	parent = `0`
	)

Definition at line 678 of file qdeclarativevisualitemmodel.cpp.

 : QDeclarativeVisualModel(*(new QDeclarativeVisualDataModelPrivate(ctxt)), parent)
 {
 }

◆ ~QDeclarativeVisualDataModel()

QDeclarativeVisualDataModel::~QDeclarativeVisualDataModel ( )

virtual

Definition at line 683 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     if (d->m_listAccessor)
         delete d->m_listAccessor;
     if (d->m_delegateDataType)
         d->m_delegateDataType->release();
 }

Functions

◆ _q_createdPackage

void QDeclarativeVisualDataModel::_q_createdPackage	(	int	index,
		QDeclarativePackage *	package
	)

privateslot

Definition at line 1440 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     emit createdItem(index, qobject_cast<QDeclarativeItem*>(package->part(d->m_part)));
 }

◆ _q_dataChanged

void QDeclarativeVisualDataModel::_q_dataChanged	(	const QModelIndex &	begin,
		const QModelIndex &	end
	)

privateslot

Definition at line 1417 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     if (begin.parent() == d->m_root)
         _q_itemsChanged(begin.row(), end.row() - begin.row() + 1, d->m_roles);
 }

◆ _q_destroyingPackage

void QDeclarativeVisualDataModel::_q_destroyingPackage ( QDeclarativePackage * package )

privateslot

Definition at line 1446 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     emit destroyingItem(qobject_cast<QDeclarativeItem*>(package->part(d->m_part)));
 }

◆ _q_itemsChanged

void QDeclarativeVisualDataModel::_q_itemsChanged	(	int	index,
		int	count,
		const QList< int > &	roles
	)

privateslot

Definition at line 1225 of file qdeclarativevisualitemmodel.cpp.

Referenced by _q_dataChanged(), _q_layoutChanged(), and setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     bool changed = false;
     if (!d->watchedRoles.isEmpty() && d->watchedRoleIds.isEmpty()) {
         foreach (QByteArray r, d->watchedRoles) {
             if (d->m_roleNames.contains(r))
                 d->watchedRoleIds << d->m_roleNames.value(r);
         }
     }
 
     for (QHash<int,QDeclarativeVisualDataModelPrivate::ObjectRef>::ConstIterator iter = d->m_cache.begin();
         iter != d->m_cache.end(); ++iter) {
         const int idx = iter.key();
 
         if (idx >= index && idx < index+count) {
             QDeclarativeVisualDataModelPrivate::ObjectRef objRef = *iter;
             QDeclarativeVisualDataModelData *data = d->data(objRef.obj);
             for (int roleIdx = 0; roleIdx < roles.count(); ++roleIdx) {
                 int role = roles.at(roleIdx);
                 if (!changed && !d->watchedRoleIds.isEmpty() && d->watchedRoleIds.contains(role))
                     changed = true;
                 int propId = data->propForRole(role);
                 if (propId != -1) {
                     if (data->hasValue(propId)) {
                         if (d->m_listModelInterface) {
                             data->setValue(propId, d->m_listModelInterface->data(idx, role));
                         } else if (d->m_abstractItemModel) {
                             QModelIndex index = d->m_abstractItemModel->index(idx, 0, d->m_root);
                             data->setValue(propId, d->m_abstractItemModel->data(index, role));
                         }
                     }
                 } else {
                     QString roleName;
                     if (d->m_listModelInterface)
                         roleName = d->m_listModelInterface->toString(role);
                     else if (d->m_abstractItemModel)
                         roleName = QString::fromUtf8(d->m_abstractItemModel->roleNames().value(role));
                     qmlInfo(this) << "Changing role not present in item: " << roleName;
                 }
             }
             if (d->m_roles.count() == 1) {
                 // Handle the modelData role we add if there is just one role.
                 int propId = data->modelDataPropertyId();
                 if (data->hasValue(propId)) {
                     int role = d->m_roles.at(0);
                     if (d->m_listModelInterface) {
                         data->setValue(propId, d->m_listModelInterface->data(idx, role));
                     } else if (d->m_abstractItemModel) {
                         QModelIndex index = d->m_abstractItemModel->index(idx, 0, d->m_root);
                         data->setValue(propId, d->m_abstractItemModel->data(index, role));
                     }
                 }
             }
         }
     }
     if (changed)
         emit itemsChanged(index, count);
 }

◆ _q_itemsInserted

void QDeclarativeVisualDataModel::_q_itemsInserted	(	int	index,
		int	count
	)

privateslot

Definition at line 1286 of file qdeclarativevisualitemmodel.cpp.

Referenced by _q_rowsInserted(), _q_rowsMoved(), and setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     if (!count)
         return;
     // XXX - highly inefficient
     QHash<int,QDeclarativeVisualDataModelPrivate::ObjectRef> items;
     for (QHash<int,QDeclarativeVisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin();
         iter != d->m_cache.end(); ) {
 
         if (iter.key() >= index) {
             QDeclarativeVisualDataModelPrivate::ObjectRef objRef = *iter;
             int index = iter.key() + count;
             iter = d->m_cache.erase(iter);
 
             items.insert(index, objRef);
 
             QDeclarativeVisualDataModelData *data = d->data(objRef.obj);
             data->setIndex(index);
         } else {
             ++iter;
         }
     }
     d->m_cache.unite(items);
 
     emit itemsInserted(index, count);
     emit countChanged();
 }

◆ _q_itemsMoved

void QDeclarativeVisualDataModel::_q_itemsMoved	(	int	from,
		int	to,
		int	count
	)

privateslot

Definition at line 1347 of file qdeclarativevisualitemmodel.cpp.

Referenced by _q_rowsMoved(), and setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     // XXX - highly inefficient
     QHash<int,QDeclarativeVisualDataModelPrivate::ObjectRef> items;
     for (QHash<int,QDeclarativeVisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin();
         iter != d->m_cache.end(); ) {
 
         if (iter.key() >= from && iter.key() < from + count) {
             QDeclarativeVisualDataModelPrivate::ObjectRef objRef = *iter;
             int index = iter.key() - from + to;
             iter = d->m_cache.erase(iter);
 
             items.insert(index, objRef);
 
             QDeclarativeVisualDataModelData *data = d->data(objRef.obj);
             data->setIndex(index);
         } else {
             ++iter;
         }
     }
     for (QHash<int,QDeclarativeVisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin();
         iter != d->m_cache.end(); ) {
 
         int diff = from > to ? count : -count;
         if (iter.key() >= qMin(from,to) && iter.key() < qMax(from+count,to+count)) {
             QDeclarativeVisualDataModelPrivate::ObjectRef objRef = *iter;
             int index = iter.key() + diff;
             iter = d->m_cache.erase(iter);
 
             items.insert(index, objRef);
 
             QDeclarativeVisualDataModelData *data = d->data(objRef.obj);
             data->setIndex(index);
         } else {
             ++iter;
         }
     }
     d->m_cache.unite(items);
 
     emit itemsMoved(from, to, count);
 }

◆ _q_itemsRemoved

void QDeclarativeVisualDataModel::_q_itemsRemoved	(	int	index,
		int	count
	)

privateslot

Definition at line 1315 of file qdeclarativevisualitemmodel.cpp.

Referenced by _q_rowsMoved(), _q_rowsRemoved(), and setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     if (!count)
         return;
     // XXX - highly inefficient
     QHash<int, QDeclarativeVisualDataModelPrivate::ObjectRef> items;
     for (QHash<int, QDeclarativeVisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin();
         iter != d->m_cache.end(); ) {
         if (iter.key() >= index && iter.key() < index + count) {
             QDeclarativeVisualDataModelPrivate::ObjectRef objRef = *iter;
             iter = d->m_cache.erase(iter);
             items.insertMulti(-1, objRef); //XXX perhaps better to maintain separately
             QDeclarativeVisualDataModelData *data = d->data(objRef.obj);
             data->setIndex(-1);
         } else if (iter.key() >= index + count) {
             QDeclarativeVisualDataModelPrivate::ObjectRef objRef = *iter;
             int index = iter.key() - count;
             iter = d->m_cache.erase(iter);
             items.insert(index, objRef);
             QDeclarativeVisualDataModelData *data = d->data(objRef.obj);
             data->setIndex(index);
         } else {
             ++iter;
         }
     }
 
     d->m_cache.unite(items);
     emit itemsRemoved(index, count);
     emit countChanged();
 }

◆ _q_layoutChanged

void QDeclarativeVisualDataModel::_q_layoutChanged ( )

privateslot

Definition at line 1424 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     _q_itemsChanged(0, count(), d->m_roles);
 }

◆ _q_modelReset

void QDeclarativeVisualDataModel::_q_modelReset ( )

privateslot

Definition at line 1430 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     d->m_root = QModelIndex();
     emit modelReset();
     emit rootIndexChanged();
     if (d->m_abstractItemModel && d->m_abstractItemModel->canFetchMore(d->m_root))
         d->m_abstractItemModel->fetchMore(d->m_root);
 }

◆ _q_rowsInserted

void QDeclarativeVisualDataModel::_q_rowsInserted	(	const QModelIndex &	parent,
		int	begin,
		int	end
	)

privateslot

Definition at line 1390 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     if (parent == d->m_root)
         _q_itemsInserted(begin, end - begin + 1);
 }

◆ _q_rowsMoved

void QDeclarativeVisualDataModel::_q_rowsMoved	(	const QModelIndex &	sourceParent,
		int	sourceStart,
		int	sourceEnd,
		const QModelIndex &	destinationParent,
		int	destinationRow
	)

privateslot

Definition at line 1404 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     const int count = sourceEnd - sourceStart + 1;
     if (destinationParent == d->m_root && sourceParent == d->m_root) {
         _q_itemsMoved(sourceStart, sourceStart > destinationRow ? destinationRow : destinationRow-count, count);
     } else if (sourceParent == d->m_root) {
         _q_itemsRemoved(sourceStart, count);
     } else if (destinationParent == d->m_root) {
         _q_itemsInserted(destinationRow, count);
     }
 }

◆ _q_rowsRemoved

void QDeclarativeVisualDataModel::_q_rowsRemoved	(	const QModelIndex &	parent,
		int	begin,
		int	end
	)

privateslot

Definition at line 1397 of file qdeclarativevisualitemmodel.cpp.

Referenced by setModel().

 {
     Q_D(QDeclarativeVisualDataModel);
     if (parent == d->m_root)
         _q_itemsRemoved(begin, end - begin + 1);
 }

◆ completeItem()

void QDeclarativeVisualDataModel::completeItem ( )

virtual

Implements QDeclarativeVisualModel.

Definition at line 1148 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     if (d->m_visualItemModel) {
         d->m_visualItemModel->completeItem();
         return;
     }
 
     d->m_delegate->completeCreate();
     d->m_completePending = false;
 }

◆ completePending()

bool QDeclarativeVisualDataModel::completePending ( ) const

virtual

Implements QDeclarativeVisualModel.

Definition at line 1140 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(const QDeclarativeVisualDataModel);
     if (d->m_visualItemModel)
         return d->m_visualItemModel->completePending();
     return d->m_completePending;
 }

◆ count()

int QDeclarativeVisualDataModel::count ( ) const

virtual

Implements QDeclarativeVisualModel.

Definition at line 969 of file qdeclarativevisualitemmodel.cpp.

Referenced by _q_itemsInserted(), _q_itemsMoved(), _q_itemsRemoved(), _q_layoutChanged(), _q_rowsMoved(), and QDeclarativeVisualDataModelPrivate::modelCount().

 {
     Q_D(const QDeclarativeVisualDataModel);
     if (d->m_visualItemModel)
         return d->m_visualItemModel->count();
     if (!d->m_delegate)
         return 0;
     return d->modelCount();
 }

◆ createdPackage

void QDeclarativeVisualDataModel::createdPackage	(	int	index,
		QDeclarativePackage *	package
	)

signal

Referenced by item(), and setModel().

◆ delegate()

QDeclarativeComponent* QDeclarativeVisualDataModel::delegate ( ) const

Referenced by setDelegate(), and setModel().

◆ destroyingPackage

void QDeclarativeVisualDataModel::destroyingPackage ( QDeclarativePackage * package )

signal

Referenced by release(), and setModel().

◆ indexOf()

int QDeclarativeVisualDataModel::indexOf	(	QDeclarativeItem *	item,
		QObject *	objectContext
	)		const

virtual

Implements QDeclarativeVisualModel.

Definition at line 1211 of file qdeclarativevisualitemmodel.cpp.

 {
     QVariant val = QDeclarativeEngine::contextForObject(item)->contextProperty(QLatin1String("index"));
         return val.toInt();
     return -1;
 }

◆ isValid()

bool QDeclarativeVisualDataModel::isValid ( ) const

inlinevirtual

Implements QDeclarativeVisualModel.

Definition at line 173 of file qdeclarativevisualitemmodel_p.h.

173 { return delegate() != 0; }

QDeclarativeVisualDataModel::delegate

QDeclarativeComponent * delegate() const

◆ item() [1/2]

QDeclarativeItem * QDeclarativeVisualDataModel::item	(	int	index,
		bool	complete = `true`
	)

virtual

Implements QDeclarativeVisualModel.

Definition at line 979 of file qdeclarativevisualitemmodel.cpp.

Referenced by item(), and release().

 {
     Q_D(QDeclarativeVisualDataModel);
     if (d->m_visualItemModel)
         return d->m_visualItemModel->item(index, d->m_part.toUtf8(), complete);
     return item(index, QByteArray(), complete);
 }

◆ item() [2/2]

QDeclarativeItem * QDeclarativeVisualDataModel::item	(	int	index,
		const QByteArray &	viewId,
		bool	complete = `true`
	)

Definition at line 1071 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     if (d->m_visualItemModel)
         return d->m_visualItemModel->item(index, viewId, complete);
 
     if (d->modelCount() <= 0 || !d->m_delegate)
         return 0;
     QObject *nobj = d->m_cache.getItem(index);
     bool needComplete = false;
     if (!nobj) {
         QDeclarativeContext *ccontext = d->m_context;
         if (!ccontext) ccontext = qmlContext(this);
         QDeclarativeContext *ctxt = new QDeclarativeContext(ccontext);
         QDeclarativeVisualDataModelData *data = new QDeclarativeVisualDataModelData(index, this);
         if ((!d->m_listModelInterface || !d->m_abstractItemModel) && d->m_listAccessor
             && d->m_listAccessor->type() == QDeclarativeListAccessor::ListProperty) {
             QDeclarativeContext *objCtxt = ctxt;
             objCtxt->setContextObject(d->m_listAccessor->at(index).value<QObject*>());
             ctxt = new QDeclarativeContext(ctxt);
             QDeclarative_setParent_noEvent(objCtxt, ctxt);
         }
         ctxt->setContextProperty(QLatin1String("model"), data);
         ctxt->setContextObject(data);
         d->m_completePending = false;
         nobj = d->m_delegate->beginCreate(ctxt);
         if (complete) {
             d->m_delegate->completeCreate();
         } else {
             d->m_completePending = true;
             needComplete = true;
         }
         if (nobj) {
             QDeclarative_setParent_noEvent(ctxt, nobj);
             QDeclarative_setParent_noEvent(data, nobj);
             d->m_cache.insertItem(index, nobj);
             if (QDeclarativePackage *package = qobject_cast<QDeclarativePackage *>(nobj))
                 emit createdPackage(index, package);
         } else {
             delete data;
             delete ctxt;
             qmlInfo(this, d->m_delegate->errors()) << "Error creating delegate";
         }
     }
     QDeclarativeItem *item = qobject_cast<QDeclarativeItem *>(nobj);
     if (!item) {
         QDeclarativePackage *package = qobject_cast<QDeclarativePackage *>(nobj);
         if (package) {
             QObject *o = package->part(QString::fromUtf8(viewId));
             item = qobject_cast<QDeclarativeItem *>(o);
             if (item)
                 d->m_packaged.insertMulti(item, package);
         }
     }
     if (!item) {
         if (needComplete)
             d->m_delegate->completeCreate();
         d->m_cache.releaseItem(nobj);
         if (!d->m_delegateValidated) {
             qmlInfo(d->m_delegate) << QDeclarativeVisualDataModel::tr("Delegate component must be Item type.");
             d->m_delegateValidated = true;
         }
     }
     if (d->modelCount()-1 == index && d->m_abstractItemModel && d->m_abstractItemModel->canFetchMore(d->m_root))
         d->m_abstractItemModel->fetchMore(d->m_root);
 
     return item;
 }

◆ model()

QVariant QDeclarativeVisualDataModel::model ( ) const

Referenced by setModel(), and ~QDeclarativeVisualDataModel().

◆ modelIndex()

QVariant QDeclarativeVisualDataModel::modelIndex ( int idx ) const

Definition at line 926 of file qdeclarativevisualitemmodel.cpp.

Referenced by setRootIndex().

 {
     Q_D(const QDeclarativeVisualDataModel);
     if (d->m_abstractItemModel)
         return QVariant::fromValue(d->m_abstractItemModel->index(idx, 0, d->m_root));
     return QVariant::fromValue(QModelIndex());
 }

◆ parentModelIndex()

QVariant QDeclarativeVisualDataModel::parentModelIndex ( ) const

Definition at line 949 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(const QDeclarativeVisualDataModel);
     if (d->m_abstractItemModel)
         return QVariant::fromValue(d->m_abstractItemModel->parent(d->m_root));
     return QVariant::fromValue(QModelIndex());
 }

◆ part()

QString QDeclarativeVisualDataModel::part ( ) const

Referenced by parentModelIndex(), and setPart().

◆ parts()

QObject* QDeclarativeVisualDataModel::parts ( )

Referenced by release().

◆ release()

QDeclarativeVisualDataModel::ReleaseFlags QDeclarativeVisualDataModel::release ( QDeclarativeItem * item )

virtual

Implements QDeclarativeVisualModel.

Definition at line 990 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     if (d->m_visualItemModel)
         return d->m_visualItemModel->release(item);
 
     ReleaseFlags stat = 0;
     QObject *obj = item;
     bool inPackage = false;
 
     QHash<QObject*,QDeclarativePackage*>::iterator it = d->m_packaged.find(item);
     if (it != d->m_packaged.end()) {
         QDeclarativePackage *package = *it;
         d->m_packaged.erase(it);
         if (d->m_packaged.contains(item))
             stat |= Referenced;
         inPackage = true;
         obj = package; // fall through and delete
     }
 
     if (d->m_cache.releaseItem(obj)) {
         // Remove any bindings to avoid warnings due to parent change.
         QObjectPrivate *p = QObjectPrivate::get(obj);
         Q_ASSERT(p->declarativeData);
         QDeclarativeData *d = static_cast<QDeclarativeData*>(p->declarativeData);
         if (d->ownContext && d->context)
             d->context->clearContext();
 
         if (inPackage) {
             emit destroyingPackage(qobject_cast<QDeclarativePackage*>(obj));
         } else {
             if (item->scene())
                 item->scene()->removeItem(item);
         }
         stat |= Destroyed;
         obj->deleteLater();
     } else if (!inPackage) {
         stat |= Referenced;
     }
 
     return stat;
 }

◆ rootIndex()

QVariant QDeclarativeVisualDataModel::rootIndex ( ) const

Referenced by setDelegate().

◆ rootIndexChanged

void QDeclarativeVisualDataModel::rootIndexChanged ( )

signal

Referenced by _q_modelReset(), and setRootIndex().

◆ setDelegate()

void QDeclarativeVisualDataModel::setDelegate ( QDeclarativeComponent * delegate )

Definition at line 836 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     bool wasValid = d->m_delegate != 0;
     d->m_delegate = delegate;
     d->m_delegateValidated = false;
     if (!wasValid && d->modelCount() && d->m_delegate) {
         emit itemsInserted(0, d->modelCount());
         emit countChanged();
     }
     if (wasValid && !d->m_delegate && d->modelCount()) {
         emit itemsRemoved(0, d->modelCount());
         emit countChanged();
     }
 }

◆ setModel()

void QDeclarativeVisualDataModel::setModel ( const QVariant & model )

Definition at line 714 of file qdeclarativevisualitemmodel.cpp.

Referenced by QDeclarativeVisualDataModelPartsMetaObject::initialValue().

 {
     Q_D(QDeclarativeVisualDataModel);
     delete d->m_listAccessor;
     d->m_listAccessor = 0;
     d->m_modelVariant = model;
     if (d->m_listModelInterface) {
         // Assume caller has released all items.
         QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsChanged(int,int,QList<int>)),
                 this, SLOT(_q_itemsChanged(int,int,QList<int>)));
         QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsInserted(int,int)),
                 this, SLOT(_q_itemsInserted(int,int)));
         QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsRemoved(int,int)),
                 this, SLOT(_q_itemsRemoved(int,int)));
         QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsMoved(int,int,int)),
                 this, SLOT(_q_itemsMoved(int,int,int)));
         d->m_listModelInterface = 0;
     } else if (d->m_abstractItemModel) {
         QObject::disconnect(d->m_abstractItemModel, SIGNAL(rowsInserted(QModelIndex,int,int)),
                             this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
         QObject::disconnect(d->m_abstractItemModel, SIGNAL(rowsRemoved(QModelIndex,int,int)),
                             this, SLOT(_q_rowsRemoved(QModelIndex,int,int)));
         QObject::disconnect(d->m_abstractItemModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
                             this, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
         QObject::disconnect(d->m_abstractItemModel, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)),
                             this, SLOT(_q_rowsMoved(QModelIndex,int,int,QModelIndex,int)));
         QObject::disconnect(d->m_abstractItemModel, SIGNAL(modelReset()), this, SLOT(_q_modelReset()));
         QObject::disconnect(d->m_abstractItemModel, SIGNAL(layoutChanged()), this, SLOT(_q_layoutChanged()));
         d->m_abstractItemModel = 0;
     } else if (d->m_visualItemModel) {
         QObject::disconnect(d->m_visualItemModel, SIGNAL(itemsInserted(int,int)),
                          this, SIGNAL(itemsInserted(int,int)));
         QObject::disconnect(d->m_visualItemModel, SIGNAL(itemsRemoved(int,int)),
                          this, SIGNAL(itemsRemoved(int,int)));
         QObject::disconnect(d->m_visualItemModel, SIGNAL(itemsMoved(int,int,int)),
                          this, SIGNAL(itemsMoved(int,int,int)));
         QObject::disconnect(d->m_visualItemModel, SIGNAL(createdPackage(int,QDeclarativePackage*)),
                          this, SLOT(_q_createdPackage(int,QDeclarativePackage*)));
         QObject::disconnect(d->m_visualItemModel, SIGNAL(destroyingPackage(QDeclarativePackage*)),
                          this, SLOT(_q_destroyingPackage(QDeclarativePackage*)));
         d->m_visualItemModel = 0;
     }
 
     d->m_roles.clear();
     d->m_roleNames.clear();
     if (d->m_delegateDataType)
         d->m_delegateDataType->release();
     d->m_metaDataCreated = 0;
     d->m_metaDataCacheable = false;
     d->m_delegateDataType = new VDMDelegateDataType(&QDeclarativeVisualDataModelData::staticMetaObject, d->m_context?d->m_context->engine():qmlEngine(this));
 
     QObject *object = qvariant_cast<QObject *>(model);
     if (object && (d->m_listModelInterface = qobject_cast<QListModelInterface *>(object))) {
         QObject::connect(d->m_listModelInterface, SIGNAL(itemsChanged(int,int,QList<int>)),
                          this, SLOT(_q_itemsChanged(int,int,QList<int>)));
         QObject::connect(d->m_listModelInterface, SIGNAL(itemsInserted(int,int)),
                          this, SLOT(_q_itemsInserted(int,int)));
         QObject::connect(d->m_listModelInterface, SIGNAL(itemsRemoved(int,int)),
                          this, SLOT(_q_itemsRemoved(int,int)));
         QObject::connect(d->m_listModelInterface, SIGNAL(itemsMoved(int,int,int)),
                          this, SLOT(_q_itemsMoved(int,int,int)));
         d->m_metaDataCacheable = true;
         if (d->m_delegate && d->m_listModelInterface->count())
             emit itemsInserted(0, d->m_listModelInterface->count());
         return;
     } else if (object && (d->m_abstractItemModel = qobject_cast<QAbstractItemModel *>(object))) {
         QObject::connect(d->m_abstractItemModel, SIGNAL(rowsInserted(QModelIndex,int,int)),
                             this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
         QObject::connect(d->m_abstractItemModel, SIGNAL(rowsRemoved(QModelIndex,int,int)),
                             this, SLOT(_q_rowsRemoved(QModelIndex,int,int)));
         QObject::connect(d->m_abstractItemModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
                             this, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
         QObject::connect(d->m_abstractItemModel, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)),
                             this, SLOT(_q_rowsMoved(QModelIndex,int,int,QModelIndex,int)));
         QObject::connect(d->m_abstractItemModel, SIGNAL(modelReset()), this, SLOT(_q_modelReset()));
         QObject::connect(d->m_abstractItemModel, SIGNAL(layoutChanged()), this, SLOT(_q_layoutChanged()));
         d->m_metaDataCacheable = true;
         if (d->m_abstractItemModel->canFetchMore(d->m_root))
             d->m_abstractItemModel->fetchMore(d->m_root);
         return;
     }
     if ((d->m_visualItemModel = qvariant_cast<QDeclarativeVisualDataModel *>(model))) {
         QObject::connect(d->m_visualItemModel, SIGNAL(itemsInserted(int,int)),
                          this, SIGNAL(itemsInserted(int,int)));
         QObject::connect(d->m_visualItemModel, SIGNAL(itemsRemoved(int,int)),
                          this, SIGNAL(itemsRemoved(int,int)));
         QObject::connect(d->m_visualItemModel, SIGNAL(itemsMoved(int,int,int)),
                          this, SIGNAL(itemsMoved(int,int,int)));
         QObject::connect(d->m_visualItemModel, SIGNAL(createdPackage(int,QDeclarativePackage*)),
                          this, SLOT(_q_createdPackage(int,QDeclarativePackage*)));
         QObject::connect(d->m_visualItemModel, SIGNAL(destroyingPackage(QDeclarativePackage*)),
                          this, SLOT(_q_destroyingPackage(QDeclarativePackage*)));
         return;
     }
     d->m_listAccessor = new QDeclarativeListAccessor;
     d->m_listAccessor->setList(model, d->m_context?d->m_context->engine():qmlEngine(this));
     if (d->m_listAccessor->type() != QDeclarativeListAccessor::ListProperty)
         d->m_metaDataCacheable = true;
     if (d->m_delegate && d->modelCount()) {
         emit itemsInserted(0, d->modelCount());
         emit countChanged();
     }
 }

◆ setPart()

void QDeclarativeVisualDataModel::setPart ( const QString & part )

Definition at line 963 of file qdeclarativevisualitemmodel.cpp.

Referenced by QDeclarativeVisualDataModelPartsMetaObject::initialValue().

 {
     Q_D(QDeclarativeVisualDataModel);
     d->m_part = part;
 }

◆ setRootIndex()

void QDeclarativeVisualDataModel::setRootIndex ( const QVariant & root )

Definition at line 890 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     QModelIndex modelIndex = qvariant_cast<QModelIndex>(root);
     if (d->m_root != modelIndex) {
         int oldCount = d->modelCount();
         d->m_root = modelIndex;
         if (d->m_abstractItemModel && d->m_abstractItemModel->canFetchMore(modelIndex))
             d->m_abstractItemModel->fetchMore(modelIndex);
         int newCount = d->modelCount();
         if (d->m_delegate && oldCount)
             emit itemsRemoved(0, oldCount);
         if (d->m_delegate && newCount)
             emit itemsInserted(0, newCount);
         if (newCount != oldCount)
             emit countChanged();
         emit rootIndexChanged();
     }
 }

◆ setWatchedRoles()

void QDeclarativeVisualDataModel::setWatchedRoles ( QList< QByteArray > roles )

virtual

Implements QDeclarativeVisualModel.

Definition at line 1218 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     d->watchedRoles = roles;
     d->watchedRoleIds.clear();
 }

◆ stringValue()

QString QDeclarativeVisualDataModel::stringValue	(	int	index,
		const QString &	role
	)

virtual

Implements QDeclarativeVisualModel.

Definition at line 1160 of file qdeclarativevisualitemmodel.cpp.

 {
     Q_D(QDeclarativeVisualDataModel);
     if (d->m_visualItemModel)
         return d->m_visualItemModel->stringValue(index, name);
 
     if ((!d->m_listModelInterface || !d->m_abstractItemModel) && d->m_listAccessor) {
         if (QObject *object = d->m_listAccessor->at(index).value<QObject*>())
             return object->property(name.toUtf8()).toString();
     }
 
     if ((!d->m_listModelInterface && !d->m_abstractItemModel) || !d->m_delegate)
         return QString();
 
     QString val;
     QObject *data = 0;
     bool tempData = false;
 
     if (QObject *nobj = d->m_cache.item(index))
         data = d->data(nobj);
     if (!data) {
         data = new QDeclarativeVisualDataModelData(index, this);
         tempData = true;
     }
 
     QDeclarativeData *ddata = QDeclarativeData::get(data);
     if (ddata && ddata->propertyCache) {
         QDeclarativePropertyCache::Data *prop = ddata->propertyCache->property(name);
         if (prop) {
             if (prop->propType == QVariant::String) {
                 void *args[] = { &val, 0 };
                 QMetaObject::metacall(data, QMetaObject::ReadProperty, prop->coreIndex, args);
             } else if (prop->propType == qMetaTypeId<QVariant>()) {
                 QVariant v;
                 void *args[] = { &v, 0 };
                 QMetaObject::metacall(data, QMetaObject::ReadProperty, prop->coreIndex, args);
                 val = v.toString();
             }
         } else {
             val = data->property(name.toUtf8()).toString();
         }
     } else {
         val = data->property(name.toUtf8()).toString();
     }
 
     if (tempData)
         delete data;
 
     return val;
 }

Properties

◆ delegate

QDeclarativeComponent * QDeclarativeVisualDataModel::delegate

private

Definition at line 147 of file qdeclarativevisualitemmodel_p.h.

◆ model

QVariant QDeclarativeVisualDataModel::model

private

Definition at line 146 of file qdeclarativevisualitemmodel_p.h.

◆ part

QString QDeclarativeVisualDataModel::part

private

Definition at line 148 of file qdeclarativevisualitemmodel_p.h.

◆ parts

QObject * QDeclarativeVisualDataModel::parts

private

Definition at line 149 of file qdeclarativevisualitemmodel_p.h.

◆ rootIndex

QVariant QDeclarativeVisualDataModel::rootIndex

private

Definition at line 150 of file qdeclarativevisualitemmodel_p.h.

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

/src/declarative/graphicsitems/qdeclarativevisualitemmodel_p.h
/src/declarative/graphicsitems/qdeclarativevisualitemmodel.cpp

Signals

Public Functions

Private Slots

Properties

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QDeclarativeVisualDataModel() [1/2]

◆ QDeclarativeVisualDataModel() [2/2]

◆ ~QDeclarativeVisualDataModel()

Functions

◆ _q_createdPackage

◆ _q_dataChanged

◆ _q_destroyingPackage

◆ _q_itemsChanged

◆ _q_itemsInserted

◆ _q_itemsMoved

◆ _q_itemsRemoved

◆ _q_layoutChanged

◆ _q_modelReset

◆ _q_rowsInserted

◆ _q_rowsMoved

◆ _q_rowsRemoved

◆ completeItem()

◆ completePending()

◆ count()

◆ createdPackage

◆ delegate()

◆ destroyingPackage

◆ indexOf()

◆ isValid()

◆ item() [1/2]

◆ item() [2/2]

◆ model()

◆ modelIndex()

◆ parentModelIndex()

◆ part()

◆ parts()

◆ release()

◆ rootIndex()

◆ rootIndexChanged

◆ setDelegate()

◆ setModel()

◆ setPart()

◆ setRootIndex()

◆ setWatchedRoles()

◆ stringValue()

Properties

◆ delegate

◆ model

◆ part

◆ parts

◆ rootIndex