Lomiri
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The QVariantListModel class provides a model that supplies variants to views. More...
Public Member Functions | |
QVariantListModel (QObject *parent=0) | |
QVariantListModel (const QVariantList &list, QObject *parent=0) | |
int | rowCount (const QModelIndex &parent=QModelIndex()) const override |
QModelIndex | sibling (int row, int column, const QModelIndex &idx) const override |
QVariant | data (const QModelIndex &index, int role) const override |
bool | setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override |
bool | insertRows (int row, int count, const QModelIndex &parent=QModelIndex()) override |
bool | removeRows (int row, int count, const QModelIndex &parent=QModelIndex()) override |
QHash< int, QByteArray > | roleNames () const override |
QVariantList | variantList () const |
void | setVariantList (const QVariantList &list) |
The QVariantListModel class provides a model that supplies variants to views.
QVariantListModel is an editable model that can be used for simple cases where you need to display a number of variants in a view.
The model provides all the standard functions of an editable model, representing the data in the variant list as a model with one column and a number of rows equal to the number of items in the list.
Model indexes corresponding to items are obtained with the \l{QAbstractListModel::index()}{index()} function. Item data is read with the data() function and written with setData(). The number of rows (and number of items in the variant list) can be found with the rowCount() function.
The model can be constructed with an existing variant list, or variants can be set later with the setVariantList() convenience function. Variants can also be inserted in the usual way with the insertRows() function, and removed with removeRows(). The contents of the variant list can be retrieved with the variantList() convenience function.
Definition at line 48 of file qvariantlistmodel.h.
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explicit |
Constructs a variant list model with the given parent.
Definition at line 87 of file qvariantlistmodel.cpp.
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explicit |
Constructs a variant list model containing the specified list with the given parent.
Definition at line 99 of file qvariantlistmodel.cpp.
QVariantListModel::~QVariantListModel | ( | ) |
Definition at line 106 of file qvariantlistmodel.cpp.
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override |
Returns data for the specified role, from the item with the given index.
If the view requests an invalid index, an invalid variant is returned.
Definition at line 154 of file qvariantlistmodel.cpp.
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override |
Inserts count rows into the model, beginning at the given row.
The parent index of the rows is optional and is only used for consistency with QAbstractItemModel. By default, a null index is specified, indicating that the rows are inserted in the top level of the model.
Definition at line 198 of file qvariantlistmodel.cpp.
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override |
Removes count rows from the model, beginning at the given row.
The parent index of the rows is optional and is only used for consistency with QAbstractItemModel. By default, a null index is specified, indicating that the rows are removed in the top level of the model.
Definition at line 225 of file qvariantlistmodel.cpp.
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override |
Returns the number of rows in the model. This value corresponds to the number of items in the model's internal variant list.
The optional parent argument is in most models used to specify the parent of the rows to be counted. Because this is a list if a valid parent is specified, the result will always be 0.
Definition at line 120 of file qvariantlistmodel.cpp.
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override |
Definition at line 125 of file qvariantlistmodel.cpp.
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override |
Sets the data for the specified role in the item with the given index in the model, to the provided value.
The dataChanged() signal is emitted if the item is changed.
Definition at line 174 of file qvariantlistmodel.cpp.
void QVariantListModel::setVariantList | ( | const QVariantList & | list | ) |
Sets the model's internal variant list to list. The model will notify any attached views that its underlying data has changed.
Definition at line 255 of file qvariantlistmodel.cpp.
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override |
\reimp
Definition at line 136 of file qvariantlistmodel.cpp.
QVariantList QVariantListModel::variantList | ( | ) | const |
Returns the variant list used by the model to store data.
Definition at line 244 of file qvariantlistmodel.cpp.