Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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#include <model.h>
Public Member Functions | |
StringListModel (const QStringList &strings, QObject *parent=nullptr) | |
int | rowCount (const QModelIndex &parent=QModelIndex()) const override |
Returns the number of items in the string list as the number of rows in the model. | |
QVariant | data (const QModelIndex &index, int role) const override |
[0] | |
QVariant | headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override |
[1] | |
Qt::ItemFlags | flags (const QModelIndex &index) const override |
[1] | |
bool | setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override |
[3] | |
bool | insertRows (int position, int rows, const QModelIndex &index=QModelIndex()) override |
[3] | |
bool | removeRows (int position, int rows, const QModelIndex &index=QModelIndex()) override |
[7] | |
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 | index (int row, int column=0, const QModelIndex &parent=QModelIndex()) const override |
Returns the index of the data in row and column with parent. | |
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 | |
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 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. | |
virtual QHash< int, QByteArray > | roleNames () const |
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 . | |
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 | |
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. | |
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 |
Properties inherited from QObject | |
QString | objectName |
the name of this object | |
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) | |
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[0]
Returns an appropriate value for the requested data. If the view requests an invalid index, an invalid variant is returned. Any valid index that corresponds to a string in the list causes that string to be returned. [1]
Implements QAbstractItemModel.
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[1]
[2]
Returns an appropriate value for the item's flags. Valid items are enabled, selectable, and editable. [3]
Reimplemented from QAbstractListModel.
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overridevirtual |
[1]
Returns the appropriate header string depending on the orientation of the header and the section. If anything other than the display role is requested, we return an invalid variant. [2]
role | [0] //! [1] |
Reimplemented from QAbstractItemModel.
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override |
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Returns the number of items in the string list as the number of rows in the model.
[0]
Implements QAbstractItemModel.
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overridevirtual |
[3]
Changes an item in the string list, but only if the following conditions are met:
The index supplied is valid. The index corresponds to an item to be shown in a view. The role associated with editing text is specified.
The dataChanged() signal is emitted if the item is changed. [4]
[4] //! [5]
role | [2] //! [3] |
Reimplemented from QAbstractItemModel.