QAbstractTableModel 類

QAbstractTableModel 類提供可以子類化以創建錶格模型的抽象模型。 更多...

頭：	#include <QAbstractTableModel>
qmake:	QT += core
繼承：	QAbstractItemModel

• 所有成員列錶，包括繼承成員

公共函數

	QAbstractTableModel (QObject * parent = nullptr)
virtual	~QAbstractTableModel ()

重實現公共函數

virtual bool	dropMimeData (const QMimeData * data , Qt::DropAction action , int row , int column , const QModelIndex & parent ) override
virtual Qt::ItemFlags	flags (const QModelIndex & index ) const override
virtual QModelIndex	index (int row , int column , const QModelIndex & parent = QModelIndex()) const override
virtual QModelIndex	sibling (int row , int column , const QModelIndex & idx ) const override

詳細描述

QAbstractTableModel provides a standard interface for models that represent their data as a two-dimensional array of items. It is not used directly, but must be subclassed.

Since the model provides a more specialized interface than QAbstractItemModel , it is not suitable for use with tree views, although it can be used to provide data to a QListView . If you need to represent a simple list of items, and only need a model to contain a single column of data, subclassing the QAbstractListModel may be more appropriate.

The rowCount () 和 columnCount () functions return the dimensions of the table. To retrieve a model index corresponding to an item in the model, use index () and provide only the row and column numbers.

子類化

When subclassing QAbstractTableModel, you must implement rowCount (), columnCount ()，和 data (). Default implementations of the index () 和 parent () functions are provided by QAbstractTableModel. Well behaved models will also implement headerData ().

Editable models need to implement setData (), and implement flags () to return a value containing Qt::ItemIsEditable .

為可重置大小的數據結構提供接口的模型，可以提供實現 insertRows (), removeRows (), insertColumns ()，和 removeColumns (). When implementing these functions, it is important to call the appropriate functions so that all connected views are aware of any changes:

• An insertRows () 實現必須調用 beginInsertRows () before inserting new rows into the data structure, and it must call endInsertRows () 之後立即 .
• An insertColumns () 實現必須調用 beginInsertColumns () before inserting new columns into the data structure, and it must call endInsertColumns () 之後立即 .
• A removeRows () 實現必須調用 beginRemoveRows () before the rows are removed from the data structure, and it must call endRemoveRows () 之後立即 .
• A removeColumns () 實現必須調用 beginRemoveColumns () before the columns are removed from the data structure, and it must call endRemoveColumns () 之後立即 .

注意： 用於子類化模型的一些一般可用指導方針，在 模型子類化參考 .

另請參閱 模型類 , QAbstractItemModel , QAbstractListModel ，和 像素器範例 .

成員函數文檔編製

QAbstractTableModel:: QAbstractTableModel ( QObject * parent = nullptr)

構造抽象錶格模型為給定 parent .

[虛擬] QAbstractTableModel:: ~QAbstractTableModel ()

銷毀抽象錶格模型。

[override virtual] bool QAbstractTableModel:: dropMimeData (const QMimeData * data , Qt::DropAction action , int row , int column , const QModelIndex & parent )

重實現： QAbstractItemModel::dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent).

[override virtual] Qt::ItemFlags QAbstractTableModel:: flags (const QModelIndex & index ) const

重實現： QAbstractItemModel::flags (const QModelIndex &index) const.

[override virtual] QModelIndex QAbstractTableModel:: index ( int row , int column , const QModelIndex & parent = QModelIndex()) const

重實現： QAbstractItemModel::index (int row, int column, const QModelIndex &parent) const.

Returns the index of the data in row and column with parent .

另請參閱 parent ().

[override virtual] QModelIndex QAbstractTableModel:: sibling ( int row , int column , const QModelIndex & idx ) const

重實現： QAbstractItemModel::sibling (int row, int column, const QModelIndex &index) const.

內容

1. 公共函數

2. 重實現公共函數

3. 詳細描述

4. 子類化