如何使 QAbstractTableModel 的数据可检查 [英] How to make QAbstractTableModel 's data checkable

查看:178
本文介绍了如何使 QAbstractTableModel 的数据可检查的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

如何使 QAbstractTableModel 的数据可检查

How to make QAbstractTableModel 's data checkable

我想让下面代码中的每个单元格都可以被用户选中或取消选中,如何修改代码?

I want to make each cell in the following code can be checked or unchecked by the user ,how to modify the code ?

根据 Qt 文档:Qt::CheckStateRole 并设置 Qt::ItemIsUserCheckable 可能会被使用,所以任何人都可以提供一个小例子?

according to the Qt documentation :Qt::CheckStateRole and set the Qt::ItemIsUserCheckable might be used ,so anyone can give a little sample ?

import sys                                 
from PyQt4.QtGui import *                              
from PyQt4.QtCore import *

class MyModel(QAbstractTableModel):   

    def __init__(self, parent=None):   

        super(MyModel, self).__init__(parent)   

    def rowCount(self, parent = QModelIndex()):   

        return 2

    def columnCount(self,parent = QModelIndex()) :   

        return 3

    def data(self,index, role = Qt.DisplayRole) :   

        if (role == Qt.DisplayRole):   

            return "Row{}, Column{}".format(index.row() + 1, index.column() +1)   

        return None

if __name__ == '__main__':   

    app =QApplication(sys.argv)   

    tableView=QTableView()   
    myModel = MyModel (None);    
    tableView.setModel( myModel );          
    tableView.show();   
    sys.exit(app.exec_())

推荐答案

覆盖 MyModel 中的标志函数.

Override the flags function in MyModel.

def flags(self, index)
    return super(MyModel, self).flags(index)|QtCore.Qt.ItemIsUserCheckable

这表示您的模型中的索引是可检查的.

This says that the index in your model is checkable.

然后覆盖数据函数.

def data(self,index, role = Qt.DisplayRole) :   
    if (role == Qt.DisplayRole):   
        return "Row{}, Column{}".format(index.row() + 1, index.column() +1)
    elif (role==Qt.CheckStateRole):
        # read from your data and return Qt.Checked or Unchecked
    return None

最后,你需要实现 setData 函数.

Finally, you need to implement the setData function.

def setData(self, index, value, role = Qt.EditRole):
    if (role==Qt.CheckStateRole):
        # Modify your data.

这篇关于如何使 QAbstractTableModel 的数据可检查的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆