KItemModels

View on LXR

#include <KConcatenateRowsProxyModel>

Inheritance diagram for KConcatenateRowsProxyModel:

Public Member Functions
	KConcatenateRowsProxyModel (QObject *parent=nullptr)

	~KConcatenateRowsProxyModel () override

Q_SCRIPTABLE void	addSourceModel (QAbstractItemModel *sourceModel)

int	columnCount (const QModelIndex &parent=QModelIndex()) const override

QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const override

Qt::ItemFlags	flags (const QModelIndex &index) const override

QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override

QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const override

QMap< int, QVariant >	itemData (const QModelIndex &proxyIndex) const override

QModelIndex	mapFromSource (const QModelIndex &sourceIndex) const

QModelIndex	mapToSource (const QModelIndex &proxyIndex) const

QModelIndex	parent (const QModelIndex &index) const override

Q_SCRIPTABLE void	removeSourceModel (QAbstractItemModel *sourceModel)

int	rowCount (const QModelIndex &parent=QModelIndex()) const override

bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::DisplayRole) override

Public Member Functions inherited from QAbstractItemModel
	QAbstractItemModel (QObject *parent)

virtual QModelIndex	buddy (const QModelIndex &index) const

virtual bool	canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const

virtual bool	canFetchMore (const QModelIndex &parent) const

virtual int	columnCount (const QModelIndex &parent) const =0

void	columnsAboutToBeInserted (const QModelIndex &parent, int start, int end)

void	columnsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn)

void	columnsAboutToBeRemoved (const QModelIndex &parent, int start, int end)

void	columnsInserted (const QModelIndex &parent, int start, int end)

void	columnsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn)

void	columnsRemoved (const QModelIndex &parent, int start, int end)

virtual QVariant	data (const QModelIndex &index, int role) const =0

void	dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector< int > &roles)

virtual bool	dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)

virtual void	fetchMore (const QModelIndex &parent)

virtual bool	hasChildren (const QModelIndex &parent) const

bool	hasIndex (int row, int column, const QModelIndex &parent) const

void	headerDataChanged (Qt::Orientation orientation, int first, int last)

virtual QModelIndex	index (int row, int column, const QModelIndex &parent) const =0

bool	insertColumn (int column, const QModelIndex &parent)

virtual bool	insertColumns (int column, int count, const QModelIndex &parent)

bool	insertRow (int row, const QModelIndex &parent)

virtual bool	insertRows (int row, int count, const QModelIndex &parent)

void	layoutAboutToBeChanged (const QList< QPersistentModelIndex > &parents, QAbstractItemModel::LayoutChangeHint hint)

void	layoutChanged (const QList< QPersistentModelIndex > &parents, QAbstractItemModel::LayoutChangeHint hint)

virtual QModelIndexList	match (const QModelIndex &start, int role, const QVariant &value, int hits, QFlags< Qt::MatchFlag > flags) const

virtual QMimeData *	mimeData (const QModelIndexList &indexes) const

virtual QStringList	mimeTypes () const

void	modelAboutToBeReset ()

void	modelReset ()

bool	moveColumn (const QModelIndex &sourceParent, int sourceColumn, const QModelIndex &destinationParent, int destinationChild)

virtual bool	moveColumns (const QModelIndex &sourceParent, int sourceColumn, int count, const QModelIndex &destinationParent, int destinationChild)

bool	moveRow (const QModelIndex &sourceParent, int sourceRow, const QModelIndex &destinationParent, int destinationChild)

virtual bool	moveRows (const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild)

virtual QModelIndex	parent (const QModelIndex &index) const =0

bool	removeColumn (int column, const QModelIndex &parent)

virtual bool	removeColumns (int column, int count, const QModelIndex &parent)

bool	removeRow (int row, const QModelIndex &parent)

virtual bool	removeRows (int row, int count, const QModelIndex &parent)

virtual void	revert ()

virtual QHash< int, QByteArray >	roleNames () const

virtual int	rowCount (const QModelIndex &parent) const =0

void	rowsAboutToBeInserted (const QModelIndex &parent, int start, int end)

void	rowsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow)

void	rowsAboutToBeRemoved (const QModelIndex &parent, int start, int end)

void	rowsInserted (const QModelIndex &parent, int start, int end)

void	rowsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow)

void	rowsRemoved (const QModelIndex &parent, int start, int end)

virtual bool	setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role)

virtual bool	setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles)

void	setSupportedDragActions (QFlags< Qt::DropAction > actions)

virtual QModelIndex	sibling (int row, int column, const QModelIndex &index) const

virtual void	sort (int column, Qt::SortOrder order)

virtual QSize	span (const QModelIndex &index) const

virtual bool	submit ()

virtual Qt::DropActions	supportedDragActions () const

virtual Qt::DropActions	supportedDropActions () const

Public Member Functions inherited from QObject
	QObject (QObject *parent)

bool	blockSignals (bool block)

const QObjectList &	children () const

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const

bool	disconnect (const QObject receiver, const char method) const

void	dumpObjectInfo ()

void	dumpObjectTree ()

QList< QByteArray >	dynamicPropertyNames () const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name, QFlags< Qt::FindChildOption > options) const

QList< T >	findChildren (const QString &name, QFlags< Qt::FindChildOption > options) const

QList< T >	findChildren (const QRegExp &regExp, QFlags< Qt::FindChildOption > options) const

QList< T >	findChildren (const QRegularExpression &re, QFlags< Qt::FindChildOption > options) const

bool	inherits (const char *className) const

void	installEventFilter (QObject *filterObj)

bool	isWidgetType () const

bool	isWindowType () const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const

void	moveToThread (QThread *targetThread)

QString	objectName () const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const

QVariant	property (const char *name) const

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	signalsBlocked () const

int	startTimer (int interval, Qt::TimerType timerType)

QThread *	thread () const

Additional Inherited Members
Properties inherited from QObject
	objectName

Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

QString	tr (const char sourceText, const char disambiguation, int n)

QString	trUtf8 (const char sourceText, const char disambiguation, int n)

Protected Member Functions inherited from QAbstractItemModel
void	beginInsertColumns (const QModelIndex &parent, int first, int last)

void	beginInsertRows (const QModelIndex &parent, int first, int last)

bool	beginMoveColumns (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild)

bool	beginMoveRows (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild)

void	beginRemoveColumns (const QModelIndex &parent, int first, int last)

void	beginRemoveRows (const QModelIndex &parent, int first, int last)

void	beginResetModel ()

void	changePersistentIndex (const QModelIndex &from, const QModelIndex &to)

void	changePersistentIndexList (const QModelIndexList &from, const QModelIndexList &to)

QModelIndex	createIndex (int row, int column, void *ptr) const

QModelIndex	createIndex (int row, int column, quintptr id) const

void	endInsertColumns ()

void	endInsertRows ()

void	endMoveColumns ()

void	endMoveRows ()

void	endRemoveColumns ()

void	endRemoveRows ()

void	endResetModel ()

QModelIndexList	persistentIndexList () const

void	reset ()

void	resetInternalData ()

void	setRoleNames (const QHash< int, QByteArray > &roleNames)

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const

int	receivers (const char *signal) const

QObject *	sender () const

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *event)

Detailed Description

This proxy takes multiple source models and concatenates their rows.

In other words, the proxy will have all rows of the first source model, followed by all rows of the second source model, etc.

Only flat models (lists and tables) are supported, no trees.

All models are assumed to have the same number of columns. More precisely, the number of columns of the first source model is used, so all source models should have at least as many columns as the first source model, and additional columns in other source models will simply be ignored.

Source models can be added and removed at runtime, including the first source model (but it should keep the same number of columns).

Dynamic insertion and removal of rows and columns in any source model is supported. dataChanged, layoutChanged and reset coming from the source models are supported.

At the moment this model doesn't support editing, drag-n-drop. It could be added though, nothing prevents it.

This proxy does not inherit from QAbstractProxyModel because it uses multiple source models, rather than a single one.

Author: David Faure, KDAB

Since: 5.14

Definition at line 60 of file kconcatenaterowsproxymodel.h.

Constructor & Destructor Documentation

KConcatenateRowsProxyModel::KConcatenateRowsProxyModel ( QObject * parent = nullptr )

explicit

Creates a KConcatenateRowsProxyModel.

Parameters

parent optional parent

Definition at line 56 of file kconcatenaterowsproxymodel.cpp.

KConcatenateRowsProxyModel::~KConcatenateRowsProxyModel ( )

override

Destructor.

Definition at line 62 of file kconcatenaterowsproxymodel.cpp.

Member Function Documentation

void KConcatenateRowsProxyModel::addSourceModel ( QAbstractItemModel * sourceModel )

Adds a source model sourceModel, after all existing source models.

Parameters

sourceModel the source model

The ownership of sourceModel is not affected by this. The same source model cannot be added more than once.

Definition at line 182 of file kconcatenaterowsproxymodel.cpp.

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

override

The column count for the first source model is returned here.

Reimplemented from superclass.

Definition at line 141 of file kconcatenaterowsproxymodel.cpp.

QVariant KConcatenateRowsProxyModel::data	(	const QModelIndex &	index,
		int	role = `Qt::DisplayRole`
	)		const

override

Reimplemented from superclass.

Definition at line 90 of file kconcatenaterowsproxymodel.cpp.

Qt::ItemFlags KConcatenateRowsProxyModel::flags ( const QModelIndex & index ) const

overridevirtual

Reimplemented from superclass.

Reimplemented from QAbstractItemModel.

Definition at line 118 of file kconcatenaterowsproxymodel.cpp.

QVariant KConcatenateRowsProxyModel::headerData	(	int	section,
		Qt::Orientation	orientation,
		int	role = `Qt::DisplayRole`
	)		const

overridevirtual

The horizontal header data for the first source model is returned here.

Reimplemented from superclass.

Reimplemented from QAbstractItemModel.

Definition at line 124 of file kconcatenaterowsproxymodel.cpp.

QModelIndex KConcatenateRowsProxyModel::index	(	int	row,
		int	column,
		const QModelIndex &	parent = `QModelIndex()`
	)		const

override

Reimplemented from superclass.

Definition at line 152 of file kconcatenaterowsproxymodel.cpp.

QMap< int, QVariant > KConcatenateRowsProxyModel::itemData ( const QModelIndex & proxyIndex ) const

overridevirtual

Reimplemented from superclass.

Reimplemented from QAbstractItemModel.

Definition at line 109 of file kconcatenaterowsproxymodel.cpp.

QModelIndex KConcatenateRowsProxyModel::mapFromSource ( const QModelIndex & sourceIndex ) const

Returns the proxy index for a given source index.

Parameters

sourceIndex an index coming from any of the source models

Returns: a proxy index Calling this method with an index not from a source model is undefined behavior.

Definition at line 66 of file kconcatenaterowsproxymodel.cpp.

QModelIndex KConcatenateRowsProxyModel::mapToSource ( const QModelIndex & proxyIndex ) const

Returns the source index for a given proxy index.

Parameters

proxyIndex an index for this proxy model

Returns: a source index

Definition at line 76 of file kconcatenaterowsproxymodel.cpp.

QModelIndex KConcatenateRowsProxyModel::parent ( const QModelIndex & index ) const

override

Reimplemented from superclass.

Definition at line 168 of file kconcatenaterowsproxymodel.cpp.

void KConcatenateRowsProxyModel::removeSourceModel ( QAbstractItemModel * sourceModel )

Removes the source model sourceModel.

Parameters

sourceModel a source model previously added to this proxy

The ownership of is not affected by this.

Definition at line 215 of file kconcatenaterowsproxymodel.cpp.

int KConcatenateRowsProxyModel::rowCount ( const QModelIndex & parent = QModelIndex() ) const

override

Reimplemented from superclass.

Definition at line 173 of file kconcatenaterowsproxymodel.cpp.

bool KConcatenateRowsProxyModel::setData	(	const QModelIndex &	index,
		const QVariant &	value,
		int	role = `Qt::DisplayRole`
	)

overridevirtual

Reimplemented from superclass.

Reimplemented from QAbstractItemModel.

Definition at line 99 of file kconcatenaterowsproxymodel.cpp.

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

KDE's Doxygen guidelines are available online.

Quick Links

Class Picker

About

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation