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>.
Loading...
Searching...
No Matches
QQmlTreeModelToTableModel Class Reference

#include <qqmltreemodeltotablemodel_p_p.h>

+ Inheritance diagram for QQmlTreeModelToTableModel:
+ Collaboration diagram for QQmlTreeModelToTableModel:

Public Types

enum  {
  DepthRole = Qt::UserRole - 5 , ExpandedRole , HasChildrenRole , HasSiblingRole ,
  ModelIndexRole
}
 
- 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

void expand (const QModelIndex &)
 
void collapse (const QModelIndex &)
 
void setModel (QAbstractItemModel *model)
 
bool isExpanded (const QModelIndex &) const
 
bool isExpanded (int row) const
 
bool hasChildren (int row) const
 
bool hasSiblings (int row) const
 
int depthAtRow (int row) const
 
void expandRow (int n)
 
void expandRecursively (int row, int depth)
 
void collapseRow (int n)
 
void collapseRecursively (int row)
 
- 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

void modelChanged (QAbstractItemModel *model)
 
void rootIndexChanged ()
 
void expanded (const QModelIndex &index)
 
void collapsed (const QModelIndex &index)
 
- 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

 QQmlTreeModelToTableModel (QObject *parent=nullptr)
 
QAbstractItemModelmodel () const
 
QModelIndex rootIndex () const
 
void setRootIndex (const QModelIndex &idx)
 
void resetRootIndex ()
 
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.
 
QModelIndex parent (const QModelIndex &child) const override
 
int rowCount (const QModelIndex &parent=QModelIndex()) const override
 Returns the number of rows under the given parent.
 
int columnCount (const QModelIndex &parent=QModelIndex()) const override
 Returns the number of columns for the children of the given parent.
 
QHash< int, QByteArrayroleNames () const override
 
QVariant data (const QModelIndex &, 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) override
 Sets the role data for the item at index to value.
 
QVariant headerData (int section, Qt::Orientation orientation, int role) const override
 Returns the data for the given role and section in the header with the specified orientation.
 
Qt::ItemFlags flags (const QModelIndex &index) const override
 Returns the item flags for the given index.
 
void clearModelData ()
 
bool isVisible (const QModelIndex &index)
 
bool childrenVisible (const QModelIndex &index)
 
QModelIndex mapToModel (const QModelIndex &index) const
 
QModelIndex mapFromModel (const QModelIndex &index) const
 
QModelIndex mapToModel (int row) const
 
Q_INVOKABLE QItemSelection selectionForRowRange (const QModelIndex &fromIndex, const QModelIndex &toIndex) const
 
void showModelTopLevelItems (bool doInsertRows=true)
 
void showModelChildItems (const TreeItem &parent, int start, int end, bool doInsertRows=true, bool doExpandPendingRows=true)
 
int itemIndex (const QModelIndex &index) const
 
void expandPendingRows (bool doInsertRows=true)
 
int lastChildIndex (const QModelIndex &index) const
 
void removeVisibleRows (int startIndex, int endIndex, bool doRemoveRows=true)
 
void dump () const
 
bool testConsistency (bool dumpOnFail=false) const
 
virtual Q_INVOKABLE bool hasChildren (const QModelIndex &parent=QModelIndex()) const
 Returns {true} if parent has any children; otherwise returns {false}.
 
- 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 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, QVariantitemData (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 QMimeDatamimeData (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}.
 
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
 
QObjectparent () 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< QStringbindableObjectName ()
 
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).
 
QThreadthread () 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 >
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 >
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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () 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

QAbstractItemModelmodel
 
QModelIndex rootIndex
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Additional Inherited Members

- 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 QModelIndexparent = 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 QModelIndexdestinationParent
 
Q_INVOKABLE int int const QModelIndex int destinationChild
 
Q_INVOKABLE int sourceColumn
 
Q_INVOKABLE const QModelIndexparent = QModelIndex())
 
Q_INVOKABLE int const QModelIndexdestinationParent
 
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
QObjectsender () 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< QObjectDatad_ptr
 

Detailed Description

Definition at line 29 of file qqmltreemodeltotablemodel_p_p.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum
Enumerator
DepthRole 
ExpandedRole 
HasChildrenRole 
HasSiblingRole 
ModelIndexRole 

Definition at line 51 of file qqmltreemodeltotablemodel_p_p.h.

Constructor & Destructor Documentation

◆ QQmlTreeModelToTableModel()

QQmlTreeModelToTableModel::QQmlTreeModelToTableModel ( QObject * parent = nullptr)
explicit

Definition at line 19 of file qqmltreemodeltotablemodel.cpp.

Member Function Documentation

◆ childrenVisible()

bool QQmlTreeModelToTableModel::childrenVisible ( const QModelIndex & index)

Definition at line 237 of file qqmltreemodeltotablemodel.cpp.

References QSet< T >::contains(), QList< T >::isEmpty(), and isVisible().

+ Here is the call graph for this function:

◆ clearModelData()

void QQmlTreeModelToTableModel::clearModelData ( )

Definition at line 92 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::beginResetModel(), QList< T >::clear(), QSet< T >::clear(), and QAbstractItemModel::endResetModel().

Referenced by setModel(), and setRootIndex().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ collapse

void QQmlTreeModelToTableModel::collapse ( const QModelIndex & idx)
slot

Definition at line 428 of file qqmltreemodeltotablemodel.cpp.

References ASSERT_CONSISTENCY, collapsed(), collapseRow(), QSet< T >::contains(), emit, QAbstractItemModel::hasChildren(), QModelIndex::isValid(), itemIndex(), QModelIndex::model(), Q_ASSERT, and QSet< T >::remove().

+ Here is the call graph for this function:

◆ collapsed

void QQmlTreeModelToTableModel::collapsed ( const QModelIndex & index)
signal

Referenced by collapse().

+ Here is the caller graph for this function:

◆ collapseRecursively

void QQmlTreeModelToTableModel::collapseRecursively ( int row)
slot

Definition at line 544 of file qqmltreemodeltotablemodel.cpp.

References collapseRow(), QSet< T >::contains(), QAbstractItemModel::hasChildren(), QAbstractItemModel::index(), itemIndex(), QSet< T >::remove(), and QAbstractItemModel::rowCount().

+ Here is the call graph for this function:

◆ collapseRow

void QQmlTreeModelToTableModel::collapseRow ( int n)
slot

Definition at line 568 of file qqmltreemodeltotablemodel.cpp.

References ExpandedRole, QGraphicsItem::flags(), QAbstractItemModel::hasChildren(), QAbstractItemModel::index(), isExpanded(), item, Qt::ItemNeverHasChildren, lastChildIndex(), QSet< T >::remove(), removeVisibleRows(), and QAbstractItemModel::rowCount().

Referenced by collapse(), and collapseRecursively().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ columnCount()

int QQmlTreeModelToTableModel::columnCount ( const QModelIndex & parent = QModelIndex()) const
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:

{
return 3;
}
Q_INVOKABLE int const QModelIndex & parent
Returns the parent of the model item with the given index.
virtual Q_INVOKABLE int columnCount(const QModelIndex &parent=QModelIndex()) const =0
Returns the number of columns for the children of the given parent.
\inmodule QtCore
#define Q_UNUSED(x)
Note
When implementing a table based model, columnCount() should return 0 when the parent is valid.
See also
rowCount()

Implements QAbstractItemModel.

Definition at line 148 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::columnCount(), and QAbstractItemModel::parent.

+ Here is the call graph for this function:

◆ data()

QVariant QQmlTreeModelToTableModel::data ( const QModelIndex & index,
int role ) const
overridevirtual

Returns the data stored under the given role for the item referred to by the index.

Note
If you do not have a value to return, return an invalid (default-constructed) QVariant.
See also
Qt::ItemDataRole, setData(), headerData()

Implements QAbstractItemModel.

Definition at line 155 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::data(), and mapToModel().

+ Here is the call graph for this function:

◆ depthAtRow

int QQmlTreeModelToTableModel::depthAtRow ( int row) const
slot

Definition at line 181 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), and QList< T >::size().

Referenced by expandRecursively(), and QQuickTreeViewPrivate::updateRequiredProperties().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ dump()

void QQmlTreeModelToTableModel::dump ( ) const

Definition at line 1017 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), QObject::children(), QAbstractItemModel::count, QAbstractItemModel::hasChildren(), hasChildren(), i, item, qInfo, QStringLiteral, QAbstractItemModel::rowCount(), and QList< T >::size().

Referenced by testConsistency().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ expand

void QQmlTreeModelToTableModel::expand ( const QModelIndex & idx)
slot

Definition at line 405 of file qqmltreemodeltotablemodel.cpp.

References ASSERT_CONSISTENCY, QSet< T >::contains(), emit, expanded(), expandRow(), QAbstractItemModel::hasChildren(), QSet< T >::insert(), QModelIndex::isValid(), itemIndex(), QModelIndex::model(), and Q_ASSERT.

+ Here is the call graph for this function:

◆ expanded

void QQmlTreeModelToTableModel::expanded ( const QModelIndex & index)
signal

Referenced by expand(), and showModelChildItems().

+ Here is the caller graph for this function:

◆ expandPendingRows()

void QQmlTreeModelToTableModel::expandPendingRows ( bool doInsertRows = true)

Definition at line 524 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::canFetchMore(), QAbstractItemModel::fetchMore(), QAbstractItemModel::hasChildren(), QList< T >::isEmpty(), item, Q_ASSERT, QAbstractItemModel::rowCount(), showModelChildItems(), and QList< T >::takeFirst().

Referenced by expandRow(), and showModelChildItems().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ expandRecursively

void QQmlTreeModelToTableModel::expandRecursively ( int row,
int depth )
slot

Definition at line 498 of file qqmltreemodeltotablemodel.cpp.

References QSet< T >::contains(), depthAtRow(), expandRow(), QAbstractItemModel::hasChildren(), QAbstractItemModel::index(), itemIndex(), Q_ASSERT, and QAbstractItemModel::rowCount().

+ Here is the call graph for this function:

◆ expandRow

void QQmlTreeModelToTableModel::expandRow ( int n)
slot

Definition at line 481 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::append(), QAbstractItemModel::dataChanged(), emit, ExpandedRole, expandPendingRows(), QGraphicsItem::flags(), QAbstractItemModel::hasChildren(), QSet< T >::insert(), isExpanded(), item, and Qt::ItemNeverHasChildren.

Referenced by expand(), and expandRecursively().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ flags()

Qt::ItemFlags QQmlTreeModelToTableModel::flags ( const QModelIndex & index) const
overridevirtual

Returns the item flags for the given index.

The base class implementation returns a combination of flags that enables the item (ItemIsEnabled) and allows it to be selected (ItemIsSelectable).

See also
Qt::ItemFlags

Reimplemented from QAbstractItemModel.

Definition at line 176 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::flags(), and mapToModel().

+ Here is the call graph for this function:

◆ hasChildren() [1/2]

bool QAbstractItemModel::hasChildren ( const QModelIndex & parent = QModelIndex()) const
virtual

Returns {true} if parent has any children; otherwise returns {false}.

Use rowCount() on the parent to find out the number of children.

Note that it is undefined behavior to report that a particular index hasChildren with this method if the same index has the flag Qt::ItemNeverHasChildren set.

See also
parent(), index()

Reimplemented from QAbstractItemModel.

Definition at line 253 of file qabstractitemmodel.cpp.

◆ hasChildren [2/2]

bool QQmlTreeModelToTableModel::hasChildren ( int row) const
slot

Definition at line 468 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::hasChildren(), and QList< T >::size().

Referenced by dump(), and QQuickTreeViewPrivate::updateRequiredProperties().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ hasSiblings

bool QQmlTreeModelToTableModel::hasSiblings ( int row) const
slot

Definition at line 475 of file qqmltreemodeltotablemodel.cpp.

References mapToModel(), and QAbstractItemModel::rowCount().

+ Here is the call graph for this function:

◆ headerData()

QVariant QQmlTreeModelToTableModel::headerData ( int section,
Qt::Orientation orientation,
int role ) const
overridevirtual

Returns the data for the given role and section in the header with the specified orientation.

For horizontal headers, the section number corresponds to the column number. Similarly, for vertical headers, the section number corresponds to the row number.

See also
Qt::ItemDataRole, setHeaderData(), QHeaderView

Reimplemented from QAbstractItemModel.

Definition at line 171 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::headerData().

+ Here is the call graph for this function:

◆ index()

QModelIndex QQmlTreeModelToTableModel::index ( int row,
int column,
const QModelIndex & parent = QModelIndex() ) const
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.

See also
createIndex()

Implements QAbstractItemModel.

Definition at line 123 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::createIndex(), QAbstractItemModel::hasIndex(), and QAbstractItemModel::parent.

+ Here is the call graph for this function:

◆ isExpanded [1/2]

bool QQmlTreeModelToTableModel::isExpanded ( const QModelIndex & index) const
slot

Definition at line 451 of file qqmltreemodeltotablemodel.cpp.

References ASSERT_CONSISTENCY, QSet< T >::contains(), and Q_ASSERT.

Referenced by collapseRow(), and expandRow().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ isExpanded [2/2]

bool QQmlTreeModelToTableModel::isExpanded ( int row) const
slot

Definition at line 461 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), and QList< T >::size().

+ Here is the call graph for this function:

◆ isVisible()

bool QQmlTreeModelToTableModel::isVisible ( const QModelIndex & index)

Definition at line 232 of file qqmltreemodeltotablemodel.cpp.

References itemIndex().

+ Here is the call graph for this function:

◆ itemIndex()

int QQmlTreeModelToTableModel::itemIndex ( const QModelIndex & index) const

Definition at line 188 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), i, QList< T >::isEmpty(), item, j, qMax(), qMin(), and QList< T >::size().

Referenced by collapse(), collapseRecursively(), expand(), expandRecursively(), isVisible(), lastChildIndex(), selectionForRowRange(), and showModelChildItems().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ lastChildIndex()

int QQmlTreeModelToTableModel::lastChildIndex ( const QModelIndex & index) const

Definition at line 589 of file qqmltreemodeltotablemodel.cpp.

References QSet< T >::contains(), QModelIndex::isValid(), itemIndex(), QModelIndex::parent(), QAbstractItemModel::parent, QModelIndex::row(), QModelIndex::sibling(), and QList< T >::size().

Referenced by collapseRow(), and showModelChildItems().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ mapFromModel()

QModelIndex QQmlTreeModelToTableModel::mapFromModel ( const QModelIndex & index) const

Definition at line 256 of file qqmltreemodeltotablemodel.cpp.

References i, and QList< T >::size().

+ Here is the call graph for this function:

◆ mapToModel() [1/2]

QModelIndex QQmlTreeModelToTableModel::mapToModel ( const QModelIndex & index) const

Definition at line 243 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), QAbstractItemModel::index(), and QList< T >::size().

Referenced by data(), flags(), hasSiblings(), and setData().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ mapToModel() [2/2]

QModelIndex QQmlTreeModelToTableModel::mapToModel ( int row) const

Definition at line 276 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), and QList< T >::size().

+ Here is the call graph for this function:

◆ model()

QAbstractItemModel * QQmlTreeModelToTableModel::model ( ) const

Definition at line 24 of file qqmltreemodeltotablemodel.cpp.

◆ modelChanged

void QQmlTreeModelToTableModel::modelChanged ( QAbstractItemModel * model)
signal

Referenced by setModel().

+ Here is the caller graph for this function:

◆ parent()

QModelIndex QQmlTreeModelToTableModel::parent ( const QModelIndex & child) const
overridevirtual

Implements QAbstractItemModel.

Definition at line 128 of file qqmltreemodeltotablemodel.cpp.

References child, and Q_UNUSED.

◆ removeVisibleRows()

void QQmlTreeModelToTableModel::removeVisibleRows ( int startIndex,
int endIndex,
bool doRemoveRows = true )

Definition at line 612 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::begin(), QAbstractItemModel::beginRemoveRows(), QAbstractItemModel::endRemoveRows(), QList< T >::erase(), ModelIndexRole, and QList< T >::size().

Referenced by collapseRow().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ resetRootIndex()

void QQmlTreeModelToTableModel::resetRootIndex ( )

Definition at line 118 of file qqmltreemodeltotablemodel.cpp.

References setRootIndex().

+ Here is the call graph for this function:

◆ roleNames()

QHash< int, QByteArray > QQmlTreeModelToTableModel::roleNames ( ) const
overridevirtual
Since
4.6

Returns the model's role names.

The default role names set by Qt are:

\table \header

Reimplemented from QAbstractItemModel.

Definition at line 134 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::roleNames().

+ Here is the call graph for this function:

◆ rootIndex()

QModelIndex QQmlTreeModelToTableModel::rootIndex ( ) const

Definition at line 100 of file qqmltreemodeltotablemodel.cpp.

◆ rootIndexChanged

void QQmlTreeModelToTableModel::rootIndexChanged ( )
signal

Referenced by QQuickTreeView::QQuickTreeView(), and setRootIndex().

+ Here is the caller graph for this function:

◆ rowCount()

int QQmlTreeModelToTableModel::rowCount ( const QModelIndex & parent = QModelIndex()) const
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.

Note
When implementing a table based model, rowCount() should return 0 when the parent is valid.
See also
columnCount()

Implements QAbstractItemModel.

Definition at line 141 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::size().

+ Here is the call graph for this function:

◆ selectionForRowRange()

QItemSelection QQmlTreeModelToTableModel::selectionForRowRange ( const QModelIndex & fromIndex,
const QModelIndex & toIndex ) const

Definition at line 283 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), i, it, itemIndex(), QModelIndex::parent(), QAbstractItemModel::parent, qMax(), qSwap(), QList< T >::reserve(), and toIndex().

+ Here is the call graph for this function:

◆ setData()

bool QQmlTreeModelToTableModel::setData ( const QModelIndex & index,
const QVariant & value,
int role )
overridevirtual

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.

See also
Qt::ItemDataRole, data(), itemData()

Reimplemented from QAbstractItemModel.

Definition at line 163 of file qqmltreemodeltotablemodel.cpp.

References mapToModel(), and QAbstractItemModel::setData().

+ Here is the call graph for this function:

◆ setModel

void QQmlTreeModelToTableModel::setModel ( QAbstractItemModel * model)
slot

Definition at line 68 of file qqmltreemodeltotablemodel.cpp.

References arg, clearModelData(), QObject::disconnect(), emit, QPersistentModelIndex::isValid(), QPersistentModelIndex::model(), modelChanged(), and showModelTopLevelItems().

Referenced by QQuickTreeViewPrivate::setModelImpl().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ setRootIndex()

void QQmlTreeModelToTableModel::setRootIndex ( const QModelIndex & idx)

Definition at line 105 of file qqmltreemodeltotablemodel.cpp.

References clearModelData(), emit, rootIndexChanged(), and showModelTopLevelItems().

Referenced by resetRootIndex().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ showModelChildItems()

void QQmlTreeModelToTableModel::showModelChildItems ( const TreeItem & parent,
int start,
int end,
bool doInsertRows = true,
bool doExpandPendingRows = true )

Definition at line 352 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::append(), QAbstractItemModel::beginInsertRows(), QAbstractItemModel::canFetchMore(), QSet< T >::contains(), QAbstractItemModel::endInsertRows(), expanded(), expandPendingRows(), QAbstractItemModel::fetchMore(), QAbstractItemModel::hasChildren(), i, QAbstractItemModel::index(), QList< T >::insert(), QModelIndex::isValid(), itemIndex(), lastChildIndex(), Q_ASSERT, QList< T >::reserve(), QAbstractItemModel::rowCount(), and QList< T >::size().

Referenced by expandPendingRows(), and showModelTopLevelItems().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ showModelTopLevelItems()

void QQmlTreeModelToTableModel::showModelTopLevelItems ( bool doInsertRows = true)

Definition at line 338 of file qqmltreemodeltotablemodel.cpp.

References QAbstractItemModel::canFetchMore(), QAbstractItemModel::fetchMore(), QAbstractItemModel::hasChildren(), QAbstractItemModel::rowCount(), and showModelChildItems().

Referenced by setModel(), and setRootIndex().

+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ testConsistency()

bool QQmlTreeModelToTableModel::testConsistency ( bool dumpOnFail = false) const

Definition at line 1037 of file qqmltreemodeltotablemodel.cpp.

References QList< T >::at(), QSet< T >::contains(), dump(), i, QAbstractItemModel::index(), QSet< T >::isEmpty(), QList< T >::isEmpty(), QModelIndex::isValid(), item, QAbstractItemModel::parent, qWarning, QModelIndex::row(), QAbstractItemModel::rowCount(), and QList< T >::size().

+ Here is the call graph for this function:

Property Documentation

◆ model

QAbstractItemModel * QQmlTreeModelToTableModel::model
readwrite

Definition at line 32 of file qqmltreemodeltotablemodel_p_p.h.

◆ rootIndex

QModelIndex QQmlTreeModelToTableModel::rootIndex
readwrite

Definition at line 33 of file qqmltreemodeltotablemodel_p_p.h.


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