com.trolltech.qt.gui
Class QProxyModel
java.lang.Object
com.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QObject
com.trolltech.qt.core.QAbstractItemModel
com.trolltech.qt.gui.QProxyModel
- All Implemented Interfaces:
- QtJambiInterface
public class QProxyModel
- extends QAbstractItemModel
The QProxyModel class provides support for processing data passed between another model and a view. If you want to do filtering and sorting, see QSortFilterProxyModel
.
Proxy models provide a standard model interface that can be used to manipulate the data retrieved through an underlying model. They can be used to perform operations such as sorting and filtering on the data obtained without changing the contents of the model.
Just as with subclasses of QAbstractItemView
, QProxyModel provides the setModel()
function that is used to specify the model to be acted on by the proxy. Views can be connected to either the underlying model or the proxy model with QAbstractItemView::setModel()
.
Since views rely on the information provided in model indexes to identify items of data from models, and to position these items in some visual representation, proxy models must create their own model indexes instead of supplying model indexes from their underlying models.
See also:
Model/View Programming, and QAbstractItemModel
.
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter |
QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9 |
Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal |
Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
currentSender |
Constructor Summary |
QProxyModel()
Constructs a proxy model with the given parent. |
QProxyModel(QObject parent)
Constructs a proxy model with the given parent. |
Method Summary |
java.util.List |
match(com.trolltech.qt.core.QModelIndex start,
int role,
java.lang.Object value,
int hits,
Qt.MatchFlags flags)
Returns a list of model indexes that each contain the given value for the role specified. |
QAbstractItemModel |
model()
Returns the model that contains the data that is available through the proxy model. |
void |
setModel(QAbstractItemModel model)
Sets the given model to be processed by the proxy model. |
Methods inherited from class com.trolltech.qt.core.QAbstractItemModel |
beginInsertColumns, beginInsertRows, beginRemoveColumns, beginRemoveRows, buddy, canFetchMore, changePersistentIndex, changePersistentIndexList, columnCount, columnCount, createIndex, createIndex, createIndex, data, data, data, data, dropMimeData, endInsertColumns, endInsertRows, endRemoveColumns, endRemoveRows, fetchMore, flags, hasChildren, hasChildren, hasIndex, hasIndex, headerData, headerData, index, index, insertColumn, insertColumn, insertColumns, insertColumns, insertRow, insertRow, insertRows, insertRows, itemData, match, match, match, mimeData, mimeTypes, parent, persistentIndexList, removeColumn, removeColumn, removeColumns, removeColumns, removeRow, removeRow, removeRows, removeRows, reset, revert, rowCount, rowCount, setData, setData, setData, setData, setHeaderData, setHeaderData, setItemData, setSupportedDragActions, setSupportedDragActions, sibling, sort, sort, span, submit, supportedDragActions, supportedDropActions |
Methods inherited from class com.trolltech.qt.core.QObject |
childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, startTimer, timerEvent, toString, userProperty |
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
__qt_signalInitialization |
Methods inherited from class java.lang.Object |
clone, getClass, hashCode, notify, notifyAll, wait, wait, wait |
QProxyModel
public QProxyModel()
- Constructs a proxy model with the given parent.
QProxyModel
public QProxyModel(QObject parent)
- Constructs a proxy model with the given parent.
model
public final QAbstractItemModel model()
- Returns the model that contains the data that is available through the proxy model.
- See also:
setModel()
.
match
public java.util.List match(com.trolltech.qt.core.QModelIndex start,
int role,
java.lang.Object value,
int hits,
Qt.MatchFlags flags)
- Returns a list of model indexes that each contain the given value for the role specified. The search begins at the start index and is performed according to the specified flags. The search continues until the number of matching data items equals hits, the last row is reached, or the search reaches start again, depending on whether MatchWrap is specified in flags.
- See also:
QAbstractItemModel::match()
.
- Overrides:
match
in class QAbstractItemModel
setModel
public void setModel(QAbstractItemModel model)
- Sets the given model to be processed by the proxy model.
- See also:
model()
.