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Public Member Functions | List of all members
KDescendantsProxyModel Class Reference

#include <kdescendantsproxymodel.h>

Inheritance diagram for KDescendantsProxyModel:
Inheritance graph
[legend]

Public Member Functions

 KDescendantsProxyModel (QObject *parent=0)
 
virtual ~KDescendantsProxyModel ()
 
QString ancestorSeparator () const
 
virtual int columnCount (const QModelIndex &index=QModelIndex()) const
 
QVariant data (const QModelIndex &index, int role=Qt::DisplayRole) const
 
int descendantCount (const QModelIndex &index) const
 
bool displayAncestorData () const
 
virtual Qt::ItemFlags flags (const QModelIndex &index) const
 
virtual bool hasChildren (const QModelIndex &parent=QModelIndex()) const
 
virtual QVariant headerData (int section, Qt::Orientation orientation, int role) const
 
virtual QModelIndex index (int, int, const QModelIndex &parent=QModelIndex()) const
 
QModelIndex mapFromSource (const QModelIndex &sourceIndex) const
 
QModelIndex mapToSource (const QModelIndex &proxyIndex) const
 
virtual QModelIndexList match (const QModelIndex &start, int role, const QVariant &value, int hits=1, Qt::MatchFlags flags=Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const
 
virtual QMimeData * mimeData (const QModelIndexList &indexes) const
 
virtual QStringList mimeTypes () const
 
virtual QModelIndex parent (const QModelIndex &) const
 
virtual int rowCount (const QModelIndex &parent=QModelIndex()) const
 
void setAncestorSeparator (const QString &separator)
 
void setDisplayAncestorData (bool display)
 
virtual void setSourceModel (QAbstractItemModel *model)
 
virtual Qt::DropActions supportedDropActions () const
 
- Public Member Functions inherited from QAbstractProxyModel
 QAbstractProxyModel (QObject *parent)
 
 ~QAbstractProxyModel ()
 
virtual QModelIndex buddy (const QModelIndex &index) const
 
virtual bool canFetchMore (const QModelIndex &parent) const
 
virtual void fetchMore (const QModelIndex &parent)
 
virtual QMap< int, QVariant > itemData (const QModelIndex &proxyIndex) const
 
virtual QModelIndex mapFromSource (const QModelIndex &sourceIndex) const =0
 
virtual QItemSelection mapSelectionFromSource (const QItemSelection &sourceSelection) const
 
virtual QItemSelection mapSelectionToSource (const QItemSelection &proxySelection) const
 
virtual QModelIndex mapToSource (const QModelIndex &proxyIndex) const =0
 
virtual void revert ()
 
virtual bool setData (const QModelIndex &index, const QVariant &value, int role)
 
virtual bool setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role)
 
virtual bool setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles)
 
virtual void sort (int column, Qt::SortOrder order)
 
QAbstractItemModel * sourceModel () const
 
virtual QSize span (const QModelIndex &index) const
 
virtual bool submit ()
 
- Public Member Functions inherited from QAbstractItemModel
 QAbstractItemModel (QObject *parent)
 
virtual  ~QAbstractItemModel ()
 
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)
 
virtual bool dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
 
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 ()
 
void layoutChanged ()
 
virtual QModelIndexList match (const QModelIndex &start, int role, const QVariant &value, int hits, QFlags< Qt::MatchFlag > flags) const
 
void modelAboutToBeReset ()
 
void modelReset ()
 
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)
 
const 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)
 
void setSupportedDragActions (QFlags< Qt::DropAction > actions)
 
QModelIndex sibling (int row, int column, const QModelIndex &index) const
 
Qt::DropActions supportedDragActions () const
 
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
 
 QObject (QObject *parent, const char *name)
 
virtual  ~QObject ()
 
bool blockSignals (bool block)
 
QObject * child (const char *objName, const char *inheritsClass, bool recursiveSearch) const
 
const QObjectList & children () const
 
const char * className () const
 
bool connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const
 
void deleteLater ()
 
void destroyed (QObject *obj)
 
bool disconnect (const QObject *receiver, const char *method)
 
bool disconnect (const char *signal, const QObject *receiver, const char *method)
 
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) const
 
QList< T > findChildren (const QRegExp &regExp) const
 
QList< T > findChildren (const QString &name) const
 
bool inherits (const char *className) const
 
void insertChild (QObject *object)
 
void installEventFilter (QObject *filterObj)
 
bool isA (const char *className) const
 
bool isWidgetType () const
 
void killTimer (int id)
 
virtual const QMetaObject * metaObject () const
 
void moveToThread (QThread *targetThread)
 
const char * name () const
 
const char * name (const char *defaultName) const
 
QString objectName () const
 
QObject * parent () const
 
QVariant property (const char *name) const
 
void removeChild (QObject *object)
 
void removeEventFilter (QObject *obj)
 
void setName (const char *name)
 
void setObjectName (const QString &name)
 
void setParent (QObject *parent)
 
bool setProperty (const char *name, const QVariant &value)
 
bool signalsBlocked () const
 
int startTimer (int interval)
 
QThread * thread () const
 

Additional Inherited Members

- Static Public Member Functions inherited from QObject
bool connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
 
bool connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
 
bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *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, int id) const
 
QModelIndex createIndex (int row, int column, quint32 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
bool checkConnectArgs (const char *signal, const QObject *object, const char *method)
 
virtual void childEvent (QChildEvent *event)
 
virtual void connectNotify (const char *signal)
 
virtual void customEvent (QEvent *event)
 
virtual void disconnectNotify (const char *signal)
 
int receivers (const char *signal) const
 
QObject * sender () const
 
int senderSignalIndex () const
 
virtual void timerEvent (QTimerEvent *event)
 
- Static Protected Member Functions inherited from QObject
QByteArray normalizeSignalSlot (const char *signalSlot)
 
- Properties inherited from QObject
 objectName
 

Detailed Description

Proxy Model for restructuring a Tree into a list.

A KDescendantsProxyModel may be used to alter how the items in the tree are presented.

Given a model which is represented as a tree:

entitytreemodel.png
A plain EntityTreeModel in a view

The KDescendantsProxyModel restructures the sourceModel to represent it as a flat list.

// ... Create an entityTreeModel
KDescendantsProxyModel *descProxy = new KDescendantsProxyModel(this);
descProxy->setSourceModel(entityTree);
view->setModel(descProxy);
descendantentitiesproxymodel.png
A KDescendantsProxyModel.

KDescendantEntitiesProxyModel can also display the ancestors of the index in the source model as part of its display.

// ... Create an entityTreeModel
KDescendantsProxyModel *descProxy = new KDescendantesProxyModel(this);
descProxy->setSourceModel(entityTree);
// #### This is new
descProxy->setDisplayAncestorData(true, QString( " / " ));
view->setModel(descProxy);
descendantentitiesproxymodel-withansecnames.png
A KDescendantsProxyModel with ancestor names.
Since
4.6
Author
Stephen Kelly steve.nosp@m.ire@.nosp@m.gmail.nosp@m..com

Definition at line 69 of file kdescendantsproxymodel.h.

Constructor & Destructor Documentation

KDescendantsProxyModel::KDescendantsProxyModel ( QObject *  parent = 0)
explicit

Creates a new descendant entities proxy model.

Parameters
parentThe parent object.

Definition at line 209 of file kdescendantsproxymodel.cpp.

KDescendantsProxyModel::~KDescendantsProxyModel ( )
virtual

Destroys the descendant entities proxy model.

Definition at line 214 of file kdescendantsproxymodel.cpp.

Member Function Documentation

QString KDescendantsProxyModel::ancestorSeparator ( ) const

Separator used between data of ancestors.

Definition at line 242 of file kdescendantsproxymodel.cpp.

int KDescendantsProxyModel::columnCount ( const QModelIndex &  index = QModelIndex()) const
virtual

Definition at line 477 of file kdescendantsproxymodel.cpp.

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

Reimplemented from QAbstractProxyModel.

Definition at line 485 of file kdescendantsproxymodel.cpp.

int KDescendantsProxyModel::descendantCount ( const QModelIndex &  index) const

Returns the number of descendant entries for the given model index.

bool KDescendantsProxyModel::displayAncestorData ( ) const

Whether ancestor data will be displayed.

Definition at line 230 of file kdescendantsproxymodel.cpp.

Qt::ItemFlags KDescendantsProxyModel::flags ( const QModelIndex &  index) const
virtual

Reimplemented from QAbstractProxyModel.

Definition at line 525 of file kdescendantsproxymodel.cpp.

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

Reimplemented from QAbstractProxyModel.

Definition at line 324 of file kdescendantsproxymodel.cpp.

QVariant KDescendantsProxyModel::headerData ( int  section,
Qt::Orientation  orientation,
int  role 
) const
virtual

Reimplemented from QAbstractProxyModel.

Definition at line 517 of file kdescendantsproxymodel.cpp.

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

Definition at line 344 of file kdescendantsproxymodel.cpp.

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

Definition at line 416 of file kdescendantsproxymodel.cpp.

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

Definition at line 355 of file kdescendantsproxymodel.cpp.

QModelIndexList KDescendantsProxyModel::match ( const QModelIndex &  start,
int  role,
const QVariant &  value,
int  hits = 1,
Qt::MatchFlags  flags = Qt::MatchFlags( Qt::MatchStartsWith | Qt::MatchWrap ) 
) const
virtual

Reimplemented to match all descendants.

Definition at line 219 of file kdescendantsproxymodel.cpp.

QMimeData * KDescendantsProxyModel::mimeData ( const QModelIndexList &  indexes) const
virtual

Reimplemented from QAbstractProxyModel.

Definition at line 983 of file kdescendantsproxymodel.cpp.

QStringList KDescendantsProxyModel::mimeTypes ( ) const
virtual

Reimplemented from QAbstractProxyModel.

Definition at line 994 of file kdescendantsproxymodel.cpp.

QModelIndex KDescendantsProxyModel::parent ( const QModelIndex &  index) const
virtual

Definition at line 318 of file kdescendantsproxymodel.cpp.

int KDescendantsProxyModel::rowCount ( const QModelIndex &  parent = QModelIndex()) const
virtual

Definition at line 330 of file kdescendantsproxymodel.cpp.

void KDescendantsProxyModel::setAncestorSeparator ( const QString &  separator)

Sets the ancestor separator used between data of ancestors.

Definition at line 236 of file kdescendantsproxymodel.cpp.

void KDescendantsProxyModel::setDisplayAncestorData ( bool  display)

Set whether to show ancestor data in the model.

If display is true, then a source model which is displayed as

-> "Item 0-0" (this is row-depth)
-> -> "Item 0-1"
-> -> "Item 1-1"
-> -> -> "Item 0-2"
-> -> -> "Item 1-2"
-> "Item 1-0"

will be displayed as

-> *Item 0-0"
-> "Item 0-0 / Item 0-1"
-> "Item 0-0 / Item 1-1"
-> "Item 0-0 / Item 1-1 / Item 0-2"
-> "Item 0-0 / Item 1-1 / Item 1-2"
-> "Item 1-0"

If display is false, the proxy will show

-> *Item 0-0"
-> "Item 0-1"
-> "Item 1-1"
-> "Item 0-2"
-> "Item 1-2"
-> "Item 1-0"

Default is false.

Definition at line 224 of file kdescendantsproxymodel.cpp.

void KDescendantsProxyModel::setSourceModel ( QAbstractItemModel *  model)
virtual

Sets the source model of the proxy.

Reimplemented from QAbstractProxyModel.

Definition at line 249 of file kdescendantsproxymodel.cpp.

Qt::DropActions KDescendantsProxyModel::supportedDropActions ( ) const
virtual

Reimplemented from QAbstractProxyModel.

Definition at line 1002 of file kdescendantsproxymodel.cpp.


The documentation for this class was generated from the following files:
  • kdescendantsproxymodel.h
  • kdescendantsproxymodel.cpp
This file is part of the KDE documentation.
Documentation copyright © 1996-2020 The KDE developers.
Generated on Mon Jun 22 2020 13:13:43 by doxygen 1.8.7 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.

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