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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Public Slots | |
void | setStack (QUndoStack *stack) |
void | setStack (QUndoStack *stack) |
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 | |
Public Member Functions | |
QUndoModel (QObject *parent=nullptr) | |
QUndoStack * | stack () const |
virtual QModelIndex | index (int row, int column, const QModelIndex &parent=QModelIndex()) const override |
Returns the index of the item in the model specified by the given row, column and parent index. | |
virtual QModelIndex | parent (const QModelIndex &child) const override |
virtual int | rowCount (const QModelIndex &parent=QModelIndex()) const override |
Returns the number of rows under the given parent. | |
virtual int | columnCount (const QModelIndex &parent=QModelIndex()) const override |
Returns the number of columns for the children of the given parent. | |
virtual QVariant | data (const QModelIndex &index, int role=Qt::DisplayRole) const override |
Returns the data stored under the given role for the item referred to by the index. | |
QModelIndex | selectedIndex () const |
QItemSelectionModel * | selectionModel () const |
QString | emptyLabel () const |
void | setEmptyLabel (const QString &label) |
void | setCleanIcon (const QIcon &icon) |
QIcon | cleanIcon () const |
QUndoModel (QObject *parent=nullptr) | |
QUndoStack * | stack () const |
virtual QModelIndex | index (int row, int column, const QModelIndex &parent=QModelIndex()) const override |
Returns the index of the item in the model specified by the given row, column and parent index. | |
virtual QModelIndex | parent (const QModelIndex &child) const override |
virtual int | rowCount (const QModelIndex &parent=QModelIndex()) const override |
Returns the number of rows under the given parent. | |
virtual int | columnCount (const QModelIndex &parent=QModelIndex()) const override |
Returns the number of columns for the children of the given parent. | |
virtual QVariant | data (const QModelIndex &index, int role=Qt::DisplayRole) const override |
Returns the data stored under the given role for the item referred to by the index. | |
QModelIndex | selectedIndex () const |
QItemSelectionModel * | selectionModel () const |
QString | emptyLabel () const |
void | setEmptyLabel (const QString &label) |
void | setCleanIcon (const QIcon &icon) |
QIcon | cleanIcon () const |
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 QModelIndex | sibling (int row, int column, const QModelIndex &idx) const |
Returns the sibling at row and column for the item at index, or an invalid QModelIndex if there is no sibling at that location. | |
virtual Q_INVOKABLE bool | hasChildren (const QModelIndex &parent=QModelIndex()) const |
Returns {true} if parent has any children; otherwise returns {false}. | |
virtual Q_INVOKABLE bool | setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) |
Sets the role data for the item at index to value. | |
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 bool | dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) |
Handles the data supplied by a drag and drop operation that ended with the given action. | |
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}. | |
virtual Q_INVOKABLE Qt::ItemFlags | flags (const QModelIndex &index) const |
Returns the item flags for the given index. | |
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 } |
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 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) | |
Definition at line 17 of file qundoview.cpp.
Definition at line 56 of file qundoview.cpp.
QIcon QUndoModel::cleanIcon | ( | ) | const |
Definition at line 210 of file qundoview.cpp.
QIcon QUndoModel::cleanIcon | ( | ) | const |
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overridevirtual |
Returns the number of columns for the children of the given parent.
In most subclasses, the number of columns is independent of the parent.
For example:
Implements QAbstractItemModel.
Definition at line 164 of file qundoview.cpp.
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overridevirtual |
Returns the number of columns for the children of the given parent.
In most subclasses, the number of columns is independent of the parent.
For example:
Implements QAbstractItemModel.
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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 169 of file qundoview.cpp.
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overridevirtual |
Returns the data stored under the given role for the item referred to by the index.
Implements QAbstractItemModel.
QString QUndoModel::emptyLabel | ( | ) | const |
Definition at line 193 of file qundoview.cpp.
QString QUndoModel::emptyLabel | ( | ) | const |
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overridevirtual |
Returns the index of the item in the model specified by the given row, column and parent index.
When reimplementing this function in a subclass, call createIndex() to generate model indexes that other components can use to refer to items in your model.
Implements QAbstractItemModel.
Definition at line 131 of file qundoview.cpp.
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overridevirtual |
Returns the index of the item in the model specified by the given row, column and parent index.
When reimplementing this function in a subclass, call createIndex() to generate model indexes that other components can use to refer to items in your model.
Implements QAbstractItemModel.
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overridevirtual |
Implements QAbstractItemModel.
Definition at line 148 of file qundoview.cpp.
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overridevirtual |
Implements QAbstractItemModel.
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overridevirtual |
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 153 of file qundoview.cpp.
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overridevirtual |
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.
QModelIndex QUndoModel::selectedIndex | ( | ) | const |
Definition at line 126 of file qundoview.cpp.
QModelIndex QUndoModel::selectedIndex | ( | ) | const |
QItemSelectionModel * QUndoModel::selectionModel | ( | ) | const |
Definition at line 66 of file qundoview.cpp.
QItemSelectionModel * QUndoModel::selectionModel | ( | ) | const |
Definition at line 204 of file qundoview.cpp.
Definition at line 198 of file qundoview.cpp.
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slot |
Definition at line 76 of file qundoview.cpp.
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slot |
QUndoStack * QUndoModel::stack | ( | ) | const |
Definition at line 71 of file qundoview.cpp.
QUndoStack * QUndoModel::stack | ( | ) | const |