Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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#include <qqmllistmodel_p.h>
Signals | |
void | countChanged () |
Signals inherited from QAbstractItemModel | |
void | dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList< int > &roles=QList< int >()) |
This signal is emitted whenever the data in an existing item changes. | |
void | headerDataChanged (Qt::Orientation orientation, int first, int last) |
This signal is emitted whenever a header is changed. | |
void | layoutChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint) |
void | layoutAboutToBeChanged (const QList< QPersistentModelIndex > &parents=QList< QPersistentModelIndex >(), QAbstractItemModel::LayoutChangeHint hint=QAbstractItemModel::NoLayoutChangeHint) |
void | rowsAboutToBeInserted (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted just before rows are inserted into the model. | |
void | rowsInserted (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted after rows have been inserted into the model. | |
void | rowsAboutToBeRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted just before rows are removed from the model. | |
void | rowsRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted after rows have been removed from the model. | |
void | columnsAboutToBeInserted (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted just before columns are inserted into the model. | |
void | columnsInserted (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted after columns have been inserted into the model. | |
void | columnsAboutToBeRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted just before columns are removed from the model. | |
void | columnsRemoved (const QModelIndex &parent, int first, int last, QPrivateSignal) |
This signal is emitted after columns have been removed from the model. | |
void | modelAboutToBeReset (QPrivateSignal) |
void | modelReset (QPrivateSignal) |
void | rowsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow, QPrivateSignal) |
void | rowsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow, QPrivateSignal) |
void | columnsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn, QPrivateSignal) |
void | columnsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn, 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. | |
Public Member Functions | |
QQmlListModel (QObject *parent=nullptr) | |
\qmltype ListModel \instantiates QQmlListModel \inherits AbstractListModel \inqmlmodule QtQml.Models | |
~QQmlListModel () | |
QModelIndex | index (int row, int column, const QModelIndex &parent) const override |
Returns the index of the data in row and column with parent. | |
int | rowCount (const QModelIndex &parent) const override |
Returns the number of rows under the given parent. | |
QVariant | data (const QModelIndex &index, int role) const override |
Returns the data stored under the given role for the item referred to by the index. | |
bool | setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override |
Sets the role data for the item at index to value. | |
QHash< int, QByteArray > | roleNames () const override |
QVariant | data (int index, int role) const |
int | count () const |
\qmlproperty int ListModel::count The number of data entries in the model. | |
Q_INVOKABLE void | clear () |
\qmlmethod ListModel::clear() | |
Q_INVOKABLE void | remove (QQmlV4FunctionPtr args) |
\qmlmethod ListModel::remove(int index, int count = 1) | |
Q_INVOKABLE void | append (QQmlV4FunctionPtr args) |
\qmlmethod ListModel::append(jsobject dict) | |
Q_INVOKABLE void | insert (QQmlV4FunctionPtr args) |
\qmlmethod ListModel::insert(int index, jsobject dict) | |
Q_INVOKABLE QJSValue | get (int index) const |
\qmlmethod object ListModel::get(int index) | |
Q_INVOKABLE void | set (int index, const QJSValue &value) |
\qmlmethod ListModel::set(int index, jsobject dict) | |
Q_INVOKABLE void | setProperty (int index, const QString &property, const QVariant &value) |
\qmlmethod ListModel::setProperty(int index, string property, variant value) | |
Q_INVOKABLE void | move (int from, int to, int count) |
\qmlmethod ListModel::move(int from, int to, int n) | |
Q_INVOKABLE void | sync () |
\qmlmethod ListModel::sync() | |
QQmlListModelWorkerAgent * | agent () |
bool | dynamicRoles () const |
void | setDynamicRoles (bool enableDynamicRoles) |
\qmlproperty bool ListModel::dynamicRoles | |
Public Member Functions inherited from QAbstractListModel | |
QAbstractListModel (QObject *parent=nullptr) | |
Constructs an abstract list model with the given parent. | |
~QAbstractListModel () | |
Destroys the abstract list model. | |
QModelIndex | sibling (int row, int column, const QModelIndex &idx) const override |
\reimp | |
bool | dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override |
\reimp | |
Qt::ItemFlags | flags (const QModelIndex &index) const override |
\reimp | |
QObject * | parent () const |
Returns a pointer to the parent object. | |
Public Member Functions inherited from QAbstractItemModel | |
QAbstractItemModel (QObject *parent=nullptr) | |
Constructs an abstract item model with the given parent. | |
virtual | ~QAbstractItemModel () |
Destroys the abstract item model. | |
Q_INVOKABLE bool | hasIndex (int row, int column, const QModelIndex &parent=QModelIndex()) const |
Returns {true} if the model returns a valid QModelIndex for row and column with parent, otherwise returns {false}. | |
virtual Q_INVOKABLE QVariant | headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const |
Returns the data for the given role and section in the header with the specified orientation. | |
virtual bool | setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role=Qt::EditRole) |
Sets the data for the given role and section in the header with the specified orientation to the value supplied. | |
virtual QMap< int, QVariant > | itemData (const QModelIndex &index) const |
Returns a map with values for all predefined roles in the model for the item at the given index. | |
virtual bool | setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles) |
Sets the role data for the item at index to the associated value in roles, for every Qt::ItemDataRole. | |
virtual bool | clearItemData (const QModelIndex &index) |
virtual QStringList | mimeTypes () const |
Returns the list of allowed MIME types. | |
virtual QMimeData * | mimeData (const QModelIndexList &indexes) const |
Returns an object that contains serialized items of data corresponding to the list of indexes specified. | |
virtual bool | canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const |
Returns {true} if a model can accept a drop of the data. | |
virtual Qt::DropActions | supportedDropActions () const |
virtual Qt::DropActions | supportedDragActions () const |
Returns the actions supported by the data in this model. | |
Q_INVOKABLE | Q_REVISION (6, 4) virtual bool insertRows(int row |
Q_INVOKABLE | Q_REVISION (6, 4) virtual bool insertColumns(int column |
Q_INVOKABLE | Q_REVISION (6, 4) virtual bool removeRows(int row |
Q_INVOKABLE | Q_REVISION (6, 4) virtual bool removeColumns(int column |
Q_INVOKABLE | Q_REVISION (6, 4) virtual bool moveRows(const QModelIndex &sourceParent |
Q_INVOKABLE | Q_REVISION (6, 4) virtual bool moveColumns(const QModelIndex &sourceParent |
Q_INVOKABLE | Q_REVISION (6, 4) inline bool insertRow(int row |
Q_INVOKABLE | Q_REVISION (6, 4) inline bool insertColumn(int column |
Q_INVOKABLE | Q_REVISION (6, 4) inline bool removeRow(int row |
Q_INVOKABLE | Q_REVISION (6, 4) inline bool removeColumn(int column |
Q_INVOKABLE | Q_REVISION (6, 4) inline bool moveRow(const QModelIndex &sourceParent |
Q_INVOKABLE | Q_REVISION (6, 4) inline bool moveColumn(const QModelIndex &sourceParent |
virtual Q_INVOKABLE void | fetchMore (const QModelIndex &parent) |
Fetches any available data for the items with the parent specified by the parent index. | |
virtual Q_INVOKABLE bool | canFetchMore (const QModelIndex &parent) const |
Returns {true} if there is more data available for parent; otherwise returns {false}. | |
Q_INVOKABLE | Q_REVISION (6, 4) virtual void sort(int column |
virtual QModelIndex | buddy (const QModelIndex &index) const |
Returns a model index for the buddy of the item represented by index. | |
virtual Q_INVOKABLE QModelIndexList | match (const QModelIndex &start, int role, const QVariant &value, int hits=1, Qt::MatchFlags flags=Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const |
Returns a list of indexes for the items in the column of the start index where data stored under the given role matches the specified value. | |
virtual QSize | span (const QModelIndex &index) const |
Returns the row and column span of the item represented by index. | |
bool | checkIndex (const QModelIndex &index, CheckIndexOptions options=CheckIndexOption::NoOption) const |
virtual void | multiData (const QModelIndex &index, QModelRoleDataSpan roleDataSpan) const |
QObject * | parent () const |
Returns a pointer to the parent object. | |
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 | event (QEvent *event) |
This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
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< QString > | bindableObjectName () |
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 | 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). | |
QThread * | thread () 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 > | |
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 > | |
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 QObjectList & | children () 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< QByteArray > | dynamicPropertyNames () const |
QBindingStorage * | bindingStorage () |
const QBindingStorage * | bindingStorage () const |
QObject * | parent () 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 . | |
Properties | |
int | count |
bool | dynamicRoles |
QObject * | agent |
Properties inherited from QObject | |
QString | objectName |
the name of this object | |
Friends | |
class | QQmlListModelParser |
class | QQmlListModelWorkerAgent |
class | ModelObject |
struct | QV4::ModelObject |
class | ModelNodeMetaObject |
class | ListModel |
class | ListElement |
class | DynamicRoleModelNode |
class | DynamicRoleModelNodeMetaObject |
struct | StringOrTranslation |
Additional Inherited Members | |
Public Types inherited from QAbstractItemModel | |
enum | LayoutChangeHint { NoLayoutChangeHint , VerticalSortHint , HorizontalSortHint } |
This enum describes the way the model changes layout. More... | |
enum class | CheckIndexOption { NoOption = 0x0000 , IndexIsValid = 0x0001 , DoNotUseParent = 0x0002 , ParentIsInvalid = 0x0004 } |
Public Slots inherited from QAbstractItemModel | |
virtual bool | submit () |
Lets the model know that it should submit cached information to permanent storage. | |
virtual void | revert () |
Lets the model know that it should discard cached information. | |
Public Slots inherited from QObject | |
void | deleteLater () |
\threadsafe | |
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) |
Public Attributes inherited from QAbstractItemModel | |
Q_INVOKABLE int | count |
Q_INVOKABLE int const QModelIndex & | parent = QModelIndex()) |
Returns the parent of the model item with the given index. | |
Q_INVOKABLE int | sourceRow |
Q_INVOKABLE int int | count |
Q_INVOKABLE int int const QModelIndex & | destinationParent |
Q_INVOKABLE int int const QModelIndex int | destinationChild |
Q_INVOKABLE int | sourceColumn |
Q_INVOKABLE const QModelIndex & | parent = QModelIndex()) |
Q_INVOKABLE int const QModelIndex & | destinationParent |
Q_INVOKABLE int const QModelIndex int | destinationChild |
Q_INVOKABLE Qt::SortOrder | order = Qt::AscendingOrder) |
Protected Slots inherited from QAbstractItemModel | |
virtual void | resetInternalData () |
Protected Member Functions inherited from QAbstractListModel | |
QAbstractListModel (QAbstractItemModelPrivate &dd, QObject *parent) | |
Protected Member Functions inherited from QAbstractItemModel | |
QAbstractItemModel (QAbstractItemModelPrivate &dd, QObject *parent=nullptr) | |
QModelIndex | createIndex (int row, int column, const void *data=nullptr) const |
Creates a model index for the given row and column with the internal pointer ptr. | |
QModelIndex | createIndex (int row, int column, quintptr id) const |
Creates a model index for the given row and column with the internal identifier, id. | |
void | encodeData (const QModelIndexList &indexes, QDataStream &stream) const |
bool | decodeData (int row, int column, const QModelIndex &parent, QDataStream &stream) |
void | beginInsertRows (const QModelIndex &parent, int first, int last) |
Begins a row insertion operation. | |
void | endInsertRows () |
Ends a row insertion operation. | |
void | beginRemoveRows (const QModelIndex &parent, int first, int last) |
Begins a row removal operation. | |
void | endRemoveRows () |
Ends a row removal operation. | |
bool | beginMoveRows (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationRow) |
void | endMoveRows () |
Ends a row move operation. | |
void | beginInsertColumns (const QModelIndex &parent, int first, int last) |
Begins a column insertion operation. | |
void | endInsertColumns () |
Ends a column insertion operation. | |
void | beginRemoveColumns (const QModelIndex &parent, int first, int last) |
Begins a column removal operation. | |
void | endRemoveColumns () |
Ends a column removal operation. | |
bool | beginMoveColumns (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationColumn) |
Begins a column move operation. | |
void | endMoveColumns () |
Ends a column move operation. | |
void | beginResetModel () |
Begins a model reset operation. | |
void | endResetModel () |
Completes a model reset operation. | |
void | changePersistentIndex (const QModelIndex &from, const QModelIndex &to) |
Changes the QPersistentModelIndex that is equal to the given from model index to the given to model index. | |
void | changePersistentIndexList (const QModelIndexList &from, const QModelIndexList &to) |
QModelIndexList | persistentIndexList () const |
Protected Member Functions inherited from QObject | |
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 \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) | |
Protected Attributes inherited from QObject | |
QScopedPointer< QObjectData > | d_ptr |
Related Symbols inherited from QObject | |
template< class T > T | qobject_cast (const QObject *object) |
Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr. | |
template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
QObjectList | |
\macro Q_CLASSINFO(Name, Value) | |
Definition at line 44 of file qqmllistmodel_p.h.
\qmltype ListModel \instantiates QQmlListModel \inherits AbstractListModel \inqmlmodule QtQml.Models
Defines a free-form list data source.
The ListModel is a simple container of ListElement definitions, each containing data roles. The contents can be defined dynamically, or explicitly in QML.
The number of elements in the model can be obtained from its \l count property. A number of familiar methods are also provided to manipulate the contents of the model, including append(), insert(), move(), remove() and set(). These methods accept dictionaries as their arguments; these are translated to ListElement objects by the model.
Elements can be manipulated via the model using the setProperty() method, which allows the roles of the specified element to be set and changed.
ListModel inherits from \l{QAbstractListModel} and provides its \l{Q_INVOKABLE} methods. You can, for example use \l{QAbstractItemModel::index} to retrieve a \l{QModelIndex} for a row and column.
Definition at line 2011 of file qqmllistmodel.cpp.
References ListModel.
QQmlListModel::~QQmlListModel | ( | ) |
Definition at line 2061 of file qqmllistmodel.cpp.
References ListModel::destroy(), QQmlListModelWorkerAgent::modelDestroyed(), qDeleteAll(), and QQmlListModelWorkerAgent::release().
QQmlListModelWorkerAgent * QQmlListModel::agent | ( | ) |
void QQmlListModel::append | ( | QQmlV4FunctionPtr | args | ) |
\qmlmethod ListModel::append(jsobject dict)
Adds a new item to the end of the list model, with the values in dict.
Definition at line 2592 of file qqmllistmodel.cpp.
References ListModel::append(), args, count, DynamicRoleModelNode::create(), ListModel::elementCount(), QV4::Scope::engine, i, QList< T >::length(), qmlWarning(), tr, and QV4::ExecutionEngine::variantMapFromJS().
Referenced by QQmlListModelWorkerAgent::append().
void QQmlListModel::clear | ( | ) |
\qmlmethod ListModel::clear()
Deletes all content from the model.
Definition at line 2376 of file qqmllistmodel.cpp.
References count.
Referenced by QQmlListModelWorkerAgent::clear().
int QQmlListModel::count | ( | ) | const |
\qmlproperty int ListModel::count The number of data entries in the model.
Definition at line 2364 of file qqmllistmodel.cpp.
References ListModel::elementCount().
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signal |
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overridevirtual |
Returns the data stored under the given role for the item referred to by the index.
Implements QAbstractItemModel.
Definition at line 2253 of file qqmllistmodel.cpp.
Referenced by ModelNodeMetaObject::updateValues(), and ModelNodeMetaObject::updateValues().
QVariant QQmlListModel::data | ( | int | index, |
int | role ) const |
Definition at line 2282 of file qqmllistmodel.cpp.
References count, and ListModel::getProperty().
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inline |
Definition at line 79 of file qqmllistmodel_p.h.
QJSValue QQmlListModel::get | ( | int | index | ) | const |
\qmlmethod object ListModel::get(int index)
Returns the item at index in the list model. This allows the item data to be accessed or modified from JavaScript:
The index must be an element in the list.
Note that properties of the returned object that are themselves objects will also be models, and this get() method is used to access elements:
Definition at line 2672 of file qqmllistmodel.cpp.
References QV4::MemoryManager::allocate(), count, QV4::Scope::engine, QJSValuePrivate::fromReturnedValue(), QQmlData::get(), ListModel::getOrCreateModelObject(), QV4::EngineBase::memoryManager, QV4::Value::undefinedValue(), and QV4::QObjectWrapper::wrap().
Referenced by QQmlListModelWorkerAgent::get().
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overridevirtual |
Returns the index of the data in row and column with parent.
Reimplemented from QAbstractListModel.
Definition at line 2241 of file qqmllistmodel.cpp.
References count, QAbstractItemModel::createIndex(), and QAbstractListModel::parent().
void QQmlListModel::insert | ( | QQmlV4FunctionPtr | args | ) |
\qmlmethod ListModel::insert(int index, jsobject dict)
Adds a new item to the list model at position index, with the values in dict.
The index must be to an existing item in the list, or one past the end of the list (equivalent to append).
Definition at line 2476 of file qqmllistmodel.cpp.
References args, count, DynamicRoleModelNode::create(), QV4::Scope::engine, i, ListModel::insert(), QList< T >::length(), qmlWarning(), tr, and QV4::ExecutionEngine::variantMapFromJS().
Referenced by QQmlListModelWorkerAgent::insert().
void QQmlListModel::move | ( | int | from, |
int | to, | ||
int | n ) |
\qmlmethod ListModel::move(int from, int to, int n)
Moves n items from one position to another.
The from and to ranges must exist; for example, to move the first 3 items to the end of the list:
Definition at line 2537 of file qqmllistmodel.cpp.
References QAbstractItemModel::beginMoveRows(), QAbstractItemModel::endMoveRows(), i, ListModel::move(), qmlWarning(), and tr.
Referenced by QQmlListModelWorkerAgent::move().
void QQmlListModel::remove | ( | QQmlV4FunctionPtr | args | ) |
\qmlmethod ListModel::remove(int index, int count = 1)
Deletes count number of items at index from the model.
Definition at line 2388 of file qqmllistmodel.cpp.
References args, count, QList< T >::length(), qmlWarning(), QV4::Value::toInt32(), and tr.
Referenced by QQmlListModelWorkerAgent::remove().
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overridevirtual |
Returns the model's role names.
The default role names set by Qt are:
\table \header
Reimplemented from QAbstractItemModel.
Definition at line 2297 of file qqmllistmodel.cpp.
References ListModel::getExistingRole(), i, QHash< Key, T >::insert(), ListModel::roleCount(), and roleNames().
Referenced by roleNames().
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Returns the number of rows under the given parent.
When the parent is valid it means that rowCount is returning the number of children of parent.
Implements QAbstractItemModel.
Definition at line 2248 of file qqmllistmodel.cpp.
References count, and QAbstractListModel::parent().
\qmlmethod ListModel::set(int index, jsobject dict)
Changes the item at index in the list model with the values in dict. Properties not appearing in dict are left unchanged.
If index is equal to count() then a new item is appended to the list. Otherwise, index must be an element in the list.
Definition at line 2714 of file qqmllistmodel.cpp.
References QJSValuePrivate::asReturnedValue(), count, DynamicRoleModelNode::create(), QV4::Scope::engine, ListModel::insert(), qmlWarning(), ListModel::set(), tr, and QV4::ExecutionEngine::variantMapFromJS().
Referenced by QQmlListModelWorkerAgent::set().
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Sets the role data for the item at index to value.
Returns {true} if successful; otherwise returns
{false}.
The dataChanged() signal should be emitted if the data was successfully set.
The base class implementation returns {false}. This function and data() must be reimplemented for editable models.
Reimplemented from QAbstractItemModel.
Definition at line 2258 of file qqmllistmodel.cpp.
References count, ListModel::getExistingRole(), property, ListModel::setOrCreateProperty(), and setValue().
void QQmlListModel::setDynamicRoles | ( | bool | enableDynamicRoles | ) |
\qmlproperty bool ListModel::dynamicRoles
By default, the type of a role is fixed the first time the role is used. For example, if you create a role called "data" and assign a number to it, you can no longer assign a string to the "data" role. However, when the dynamicRoles property is enabled, the type of a given role is not fixed and can be different between elements.
The dynamicRoles property must be set before any data is added to the ListModel, and must be set from the main thread.
A ListModel that has data statically defined (via the ListElement QML syntax) cannot have the dynamicRoles property enabled.
There is a significant performance cost to using a ListModel with dynamic roles enabled. The cost varies from platform to platform but is typically somewhere between 4-6x slower than using static role types.
Due to the performance cost of using dynamic roles, they are disabled by default.
Definition at line 2340 of file qqmllistmodel.cpp.
References qmlWarning(), ListLayout::roleCount(), and tr.
\qmlmethod ListModel::setProperty(int index, string property, variant value)
Changes the property of the item at index in the list model to value.
The index must be an element in the list.
Definition at line 2767 of file qqmllistmodel.cpp.
References count, property, qmlWarning(), ListModel::setOrCreateProperty(), setValue(), and tr.
Referenced by QQmlListModelWorkerAgent::setProperty().
void QQmlListModel::sync | ( | ) |
\qmlmethod ListModel::sync()
Writes any unsaved changes to the list model after it has been modified from a worker script.
Definition at line 2795 of file qqmllistmodel.cpp.
References qmlWarning().
Referenced by QQmlListModelWorkerAgent::event(), and DynamicRoleModelNode::sync().
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Definition at line 93 of file qqmllistmodel_p.h.
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Definition at line 94 of file qqmllistmodel_p.h.
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Definition at line 92 of file qqmllistmodel_p.h.
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Definition at line 91 of file qqmllistmodel_p.h.
Referenced by QQmlListModel().
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Definition at line 90 of file qqmllistmodel_p.h.
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Definition at line 88 of file qqmllistmodel_p.h.
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Definition at line 86 of file qqmllistmodel_p.h.
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Definition at line 87 of file qqmllistmodel_p.h.
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Definition at line 89 of file qqmllistmodel_p.h.
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Definition at line 95 of file qqmllistmodel_p.h.
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Definition at line 49 of file qqmllistmodel_p.h.
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Definition at line 47 of file qqmllistmodel_p.h.
Referenced by append(), clear(), QQmlListModelWorkerAgent::count(), data(), QQmlListModelWorkerAgent::event(), get(), index(), insert(), remove(), rowCount(), set(), setData(), and setProperty().
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Definition at line 48 of file qqmllistmodel_p.h.