QStringListModel Class
The QStringListModel class provides a model that supplies strings to views. 更多...
| 头文件: | #include <QStringListModel> |
| qmake: | QT += core |
| 基类: | QAbstractListModel |
公有函数
| QStringListModel(QObject *parent = Q_NULLPTR) | |
| QStringListModel(const QStringList &strings, QObject *parent = Q_NULLPTR) | |
| void | setStringList(const QStringList &strings) |
| QStringList | stringList() const |
重新实现的公有函数
| virtual QVariant | data(const QModelIndex &index, int role = Qt::DisplayRole) const |
| virtual Qt::ItemFlags | flags(const QModelIndex &index) const |
| virtual bool | insertRows(int row, int count, const QModelIndex &parent = QModelIndex()) |
| virtual bool | removeRows(int row, int count, const QModelIndex &parent = QModelIndex()) |
| virtual int | rowCount(const QModelIndex &parent = QModelIndex()) const |
| virtual bool | setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) |
| virtual QModelIndex | sibling(int row, int column, const QModelIndex &idx) const |
| virtual void | sort(int column, Qt::SortOrder order = Qt::AscendingOrder) |
| virtual Qt::DropActions | supportedDropActions() const |
- 4 个公有函数继承自 QAbstractListModel
- 39 个公有函数继承自 QAbstractItemModel
- 32 个公有函数继承自 QObject
其他继承的成员
- 1 个属性继承自 QObject
- 2 个公有槽函数继承自 QAbstractItemModel
- 1 个公有槽函数继承自 QObject
- 18 个信号继承自 QAbstractItemModel
- 2 个信号继承自 QObject
- 11 个静态公有成员继承自 QObject
- 19 个受保护的函数继承自 QAbstractItemModel
- 9 个受保护的函数继承自 QObject
- 1 个受保护的槽函数继承自 QAbstractItemModel
详细描述
The QStringListModel class provides a model that supplies strings to views.
QStringListModel is an editable model that can be used for simple cases where you need to display a number of strings in a view widget, such as a QListView or a QComboBox.
The model provides all the standard functions of an editable model, representing the data in the string 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 index() function, and item flags are obtained with flags(). Item data is read with the data() function and written with setData(). The number of rows (and number of items in the string list) can be found with the rowCount() function.
The model can be constructed with an existing string list, or strings can be set later with the setStringList() convenience function. Strings can also be inserted in the usual way with the insertRows() function, and removed with removeRows(). The contents of the string list can be retrieved with the stringList() convenience function.
An example usage of QStringListModel:
QStringListModel *model = new QStringListModel();
QStringList list;
list << "a" << "b" << "c";
model->setStringList(list);
参见 QAbstractListModel, QAbstractItemModel, and Model Classes.
成员函数
QStringListModel::QStringListModel(QObject *parent = Q_NULLPTR)
Constructs a string list model with the given parent.
QStringListModel::QStringListModel(const QStringList &strings, QObject *parent = Q_NULLPTR)
Constructs a string list model containing the specified strings with the given parent.
[virtual] QVariant QStringListModel::data(const QModelIndex &index, int role = Qt::DisplayRole) const
Reimplemented from QAbstractItemModel::data().
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.
参见 setData().
[virtual] Qt::ItemFlags QStringListModel::flags(const QModelIndex &index) const
Reimplemented from QAbstractItemModel::flags().
Returns the flags for the item with the given index.
Valid items are enabled, selectable, editable, drag enabled and drop enabled.
参见 QAbstractItemModel::flags().
[virtual] bool QStringListModel::insertRows(int row, int count, const QModelIndex &parent = QModelIndex())
Reimplemented from QAbstractItemModel::insertRows().
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.
参见 QAbstractItemModel::insertRows().
[virtual] bool QStringListModel::removeRows(int row, int count, const QModelIndex &parent = QModelIndex())
Reimplemented from QAbstractItemModel::removeRows().
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.
参见 QAbstractItemModel::removeRows().
[virtual] int QStringListModel::rowCount(const QModelIndex &parent = QModelIndex()) const
Reimplemented from QAbstractItemModel::rowCount().
Returns the number of rows in the model. This value corresponds to the number of items in the model's internal string 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.
参见 insertRows(), removeRows(), and QAbstractItemModel::rowCount().
[virtual] bool QStringListModel::setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole)
Reimplemented from QAbstractItemModel::setData().
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.
参见 Qt::ItemDataRole and data().
void QStringListModel::setStringList(const QStringList &strings)
Sets the model's internal string list to strings. The model will notify any attached views that its underlying data has changed.
参见 stringList() and dataChanged().
[virtual] QModelIndex QStringListModel::sibling(int row, int column, const QModelIndex &idx) const
Reimplemented from QAbstractItemModel::sibling().
[virtual] void QStringListModel::sort(int column, Qt::SortOrder order = Qt::AscendingOrder)
Reimplemented from QAbstractItemModel::sort().
QStringList QStringListModel::stringList() const
Returns the string list used by the model to store data.
参见 setStringList().
[virtual] Qt::DropActions QStringListModel::supportedDropActions() const
Reimplemented from QAbstractItemModel::supportedDropActions().