Package eu.webtoolkit.jwt

Class WEnumModel<E extends Enum<E>>

java.lang.Object

eu.webtoolkit.jwt.WObject

eu.webtoolkit.jwt.WAbstractItemModel

eu.webtoolkit.jwt.WAbstractTableModel

eu.webtoolkit.jwt.WEnumModel<E>

public class WEnumModel<E extends Enum<E>>
extends WAbstractTableModel

A model that lists the different values of an Enum. This model is often used in conjunction with a WSelectionBox or WComboBox to allow a user to make a choice of a possible value of an enumerated type. The model has one column, and as many rows as the enum has values. As ItemDataRole.Display, the Enum.toString() function is returned while as ItemDataRole.User, the actual Enum value is returned.

Nested Class Summary

Nested classes/interfaces inherited from class eu.webtoolkit.jwt.WObject

WObject.FormData

Constructor Summary

Constructors

Constructor	Description
WEnumModel(Class<E> enumType)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	getColumnCount(WModelIndex parent)	Returns the number of columns.
Object	getData(WModelIndex index, ItemDataRole role)	Returns data at a specified model index for the given role.
E	getObject(int row)	Returns the enum value corresponding to a row.
int	getRow(E value)	Returns the row corresponding to an enum value.
int	getRowCount(WModelIndex parent)	Returns the number of rows.

Methods inherited from class eu.webtoolkit.jwt.WAbstractTableModel

getIndex, getParent

Methods inherited from class eu.webtoolkit.jwt.WAbstractItemModel

beginInsertColumns, beginInsertRows, beginRemoveColumns, beginRemoveRows, collapseColumn, columnsAboutToBeInserted, columnsAboutToBeRemoved, columnsInserted, columnsRemoved, copyData, createIndex, createIndex, dataChanged, dropEvent, dropEvent, endInsertColumns, endInsertRows, endRemoveColumns, endRemoveRows, expandColumn, fromRawIndex, getAcceptDropMimeTypes, getColumnCount, getData, getData, getData, getData, getFlags, getHeaderData, getHeaderData, getHeaderData, getHeaderFlags, getHeaderFlags, getIndex, getItemData, getMimeType, getRowCount, hasChildren, hasIndex, hasIndex, headerDataChanged, insertColumn, insertColumn, insertColumns, insertColumns, insertRow, insertRow, insertRows, insertRows, layoutAboutToBeChanged, layoutChanged, match, modelReset, removeColumn, removeColumn, removeColumns, removeColumns, removeRow, removeRow, removeRows, removeRows, reset, rowsAboutToBeInserted, rowsAboutToBeRemoved, rowsInserted, rowsRemoved, setData, setData, setData, setData, setData, setHeaderData, setHeaderData, setHeaderData, setItemData, sort, sort, toRawIndex

Methods inherited from class eu.webtoolkit.jwt.WObject

getId, getObjectName, remove, setFormData, setObjectName, tr

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

WEnumModel

public WEnumModel(Class<E> enumType)

Constructor.

Parameters:

enumType - the enum class (e.g. MyEnum.class).

Method Details

getColumnCount

public int getColumnCount(WModelIndex parent)

Description copied from class: WAbstractItemModel

Returns the number of columns.

This returns the number of columns at index parent.

Specified by:

getColumnCount in class WAbstractItemModel

See Also:

• WAbstractItemModel.getRowCount(WModelIndex parent)

getData

public Object getData(WModelIndex index,
 ItemDataRole role)

Description copied from class: WAbstractItemModel

Returns data at a specified model index for the given role.

You should check the role to decide what data to return. Usually a View class will ask for data for several roles which affect not only the contents (ItemDataRole.Display) but also icons (ItemDataRole.Decoration), URLs (ItemDataRole.Link), and other visual aspects. If your item does not specify data for a particular role, it should simply return a Wt::cpp17::any().

Specified by:

getData in class WAbstractItemModel

See Also:

• WAbstractItemModel.getFlags(WModelIndex index)
• WAbstractItemModel.getHeaderData(int section, Orientation orientation, ItemDataRole role)
• WAbstractItemModel.setData(WModelIndex index, Object value, ItemDataRole role)

getRowCount

public int getRowCount(WModelIndex parent)

Description copied from class: WAbstractItemModel

Returns the number of rows.

This returns the number of rows at index parent.

Specified by:

getRowCount in class WAbstractItemModel

See Also:

• WAbstractItemModel.getColumnCount(WModelIndex parent)

getObject

public E getObject(int row)

Returns the enum value corresponding to a row.

Parameters:

row -

Returns:

the enum value corresponding to a row.

See Also:

• getRow(Enum)

getRow

public int getRow(E value)

Returns the row corresponding to an enum value.

Parameters:

value - enum value

Returns:

the row of that value.

See Also:

• getObject(int)