KModelIndexProxyMapper
KModelIndexProxyMapper Class Reference
#include <KModelIndexProxyMapper>
Inheritance diagram for KModelIndexProxyMapper:
Properties | |
| bool | isConnected |
 Properties inherited from QObject | |
| objectName | |
Signals | |
| void | isConnectedChanged () |
Public Member Functions | |
| KModelIndexProxyMapper (const QAbstractItemModel *leftModel, const QAbstractItemModel *rightModel, QObject *parent=nullptr) | |
| bool | isConnected () const |
| QModelIndex | mapLeftToRight (const QModelIndex &index) const |
| QModelIndex | mapRightToLeft (const QModelIndex &index) const |
| QItemSelection | mapSelectionLeftToRight (const QItemSelection &selection) const |
| QItemSelection | mapSelectionRightToLeft (const QItemSelection &selection) const |
| Public Member Functions inherited from QObject | |
| QObject (QObject *parent) | |
| QBindable< QString > | bindableObjectName () |
| bool | blockSignals (bool block) |
| const QObjectList & | children () const const |
| QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const |
| void | deleteLater () |
| void | destroyed (QObject *obj) |
| bool | disconnect (const char *signal, const QObject *receiver, const char *method) const const |
| bool | disconnect (const QObject *receiver, const char *method) const const |
| void | dumpObjectInfo () const const |
| void | dumpObjectTree () const const |
| QList< QByteArray > | dynamicPropertyNames () const const |
| virtual bool | event (QEvent *e) |
| virtual bool | eventFilter (QObject *watched, QEvent *event) |
| T | findChild (const QString &name, Qt::FindChildOptions options) const const |
| QList< T > | findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const |
| QList< T > | findChildren (const QString &name, Qt::FindChildOptions options) const const |
| QList< T > | findChildren (Qt::FindChildOptions options) const const |
| bool | inherits (const char *className) const const |
| void | installEventFilter (QObject *filterObj) |
| bool | isQuickItemType () const const |
| bool | isWidgetType () const const |
| bool | isWindowType () const const |
| void | killTimer (int id) |
| virtual const QMetaObject * | metaObject () const const |
| void | moveToThread (QThread *targetThread) |
| QString | objectName () const const |
| void | objectNameChanged (const QString &objectName) |
| QObject * | parent () const const |
| QVariant | property (const char *name) const const |
| Q_CLASSINFO (Name, Value) | |
| Q_EMIT Q_EMIT | |
| Q_ENUM (...) | |
| Q_ENUM_NS (...) | |
| Q_ENUMS (...) | |
| Q_FLAG (...) | |
| Q_FLAG_NS (...) | |
| Q_FLAGS (...) | |
| Q_GADGET Q_GADGET | |
| Q_GADGET_EXPORT (EXPORT_MACRO) | |
| Q_INTERFACES (...) | |
| Q_INVOKABLE Q_INVOKABLE | |
| Q_MOC_INCLUDE Q_MOC_INCLUDE | |
| Q_NAMESPACE Q_NAMESPACE | |
| Q_NAMESPACE_EXPORT (EXPORT_MACRO) | |
| Q_OBJECT Q_OBJECT | |
| Q_PROPERTY (...) | |
| Q_REVISION Q_REVISION | |
| Q_SET_OBJECT_NAME (Object) | |
| Q_SIGNAL Q_SIGNAL | |
| Q_SIGNALS Q_SIGNALS | |
| Q_SLOT Q_SLOT | |
| Q_SLOTS Q_SLOTS | |
| T | qobject_cast (const QObject *object) |
| T | qobject_cast (QObject *object) |
| QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT | |
| void | removeEventFilter (QObject *obj) |
| void | setObjectName (const QString &name) |
| void | setObjectName (QAnyStringView name) |
| void | setParent (QObject *parent) |
| bool | setProperty (const char *name, const QVariant &value) |
| bool | setProperty (const char *name, QVariant &&value) |
| bool | signalsBlocked () const const |
| int | startTimer (int interval, Qt::TimerType timerType) |
| int | startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType) |
| QThread * | thread () const const |
Additional Inherited Members | |
| Public Types inherited from QObject | |
| typedef | QObjectList |
| 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 *context, Functor functor, 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) |
| 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, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method) |
| bool | disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method) |
| QString | tr (const char *sourceText, const char *disambiguation, int n) |
| 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 const |
| int | receivers (const char *signal) const const |
| QObject * | sender () const const |
| int | senderSignalIndex () const const |
| virtual void | timerEvent (QTimerEvent *event) |
Detailed Description
This class facilitates easy mapping of indexes and selections through proxy models.
In a complex system of proxy models there can be a need to map indexes and selections between them, and sometimes to do so without knowledge of the path from one model to another.
For example,
* Root model * | * / \ * Proxy 1 Proxy 3 * | | * Proxy 2 Proxy 4 *
If there is a need to map indexes between proxy 2 and proxy 4, a KModelIndexProxyMapper can be created to facilitate mapping of indexes between them.
...
const QModelIndex proxy4Index = m_mapLeftToRight(proxy2->index(0, 0));
Q_ASSERT(proxy4Index.model() == proxy4);
KModelIndexProxyMapper(const QAbstractItemModel *leftModel, const QAbstractItemModel *rightModel, QObject *parent=nullptr)
Constructor.
Definition kmodelindexproxymapper.cpp:160
const QAbstractItemModel * model() const const
Note that the aim is to achieve black box connections so that there is no need for application code to know the structure of proxy models in the path between left and right and attempt to manually map them.
* Root model * | * --------------- * | Black Box | * --------------- * | | * Proxy 2 Proxy 4 *
The isConnected property indicates whether there is a path from the left side to the right side.
Definition at line 74 of file kmodelindexproxymapper.h.
Property Documentation
◆ isConnected
|
read |
Indicates whether there is a chain that can be followed from leftModel to rightModel.
This value can change if the sourceModel of an intermediate proxy is changed.
Definition at line 83 of file kmodelindexproxymapper.h.
Constructor & Destructor Documentation
◆ KModelIndexProxyMapper()
| KModelIndexProxyMapper::KModelIndexProxyMapper | ( | const QAbstractItemModel * | leftModel, |
| const QAbstractItemModel * | rightModel, | ||
| QObject * | parent = nullptr ) |
Constructor.
Definition at line 160 of file kmodelindexproxymapper.cpp.
Member Function Documentation
◆ isConnected()
| bool KModelIndexProxyMapper::isConnected | ( | ) | const |
Definition at line 281 of file kmodelindexproxymapper.cpp.
◆ mapLeftToRight()
| QModelIndex KModelIndexProxyMapper::mapLeftToRight | ( | const QModelIndex & | index | ) | const |
Maps the index from the left model to the right model.
Definition at line 168 of file kmodelindexproxymapper.cpp.
◆ mapRightToLeft()
| QModelIndex KModelIndexProxyMapper::mapRightToLeft | ( | const QModelIndex & | index | ) | const |
Maps the index from the right model to the left model.
Definition at line 178 of file kmodelindexproxymapper.cpp.
◆ mapSelectionLeftToRight()
| QItemSelection KModelIndexProxyMapper::mapSelectionLeftToRight | ( | const QItemSelection & | selection | ) | const |
Maps the selection from the left model to the right model.
Definition at line 188 of file kmodelindexproxymapper.cpp.
◆ mapSelectionRightToLeft()
| QItemSelection KModelIndexProxyMapper::mapSelectionRightToLeft | ( | const QItemSelection & | selection | ) | const |
Maps the selection from the right model to the left model.
Definition at line 236 of file kmodelindexproxymapper.cpp.
The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
Generated on Mon Nov 18 2024 12:18:35 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
Documentation copyright © 1996-2024 The KDE developers.
Generated on Mon Nov 18 2024 12:18:35 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.