disabled QTableView cell deselected after soting

[SElsner]

Hello,

I have found a strange behavior with a combo of QTableView, QSortFilterProxyView and disabled items. If you select a row in the table from the example below then sort by a column, the cell in the last column will be deselected after sorting. This happens only for cells with ItemIsSelectable as it's only item flag. There is nothong fancy or special in the example below, only standard components. Is there something I can do about this?

Example:

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys
 
my_array = [['00', '01', '02'],
            ['10', '11', '12'],
            ['20', '21', '22']]
 
def main():
    app = QApplication(sys.argv)
    w = MyWindow()
    w.show()
    sys.exit(app.exec_())
 
 
class MyWindow(QWidget):
    def __init__(self, *args):
        QWidget.__init__(self, *args)
 
        sorttablemodel = QSortFilterProxyModel(self)
        tablemodel = MyTableModel(my_array, self)
        sorttablemodel.setSourceModel(tablemodel)
        tableview = QTableView()
        tableview.setModel(sorttablemodel)
        tableview.setSelectionBehavior(QAbstractItemView.SelectRows)
        tableview.setSortingEnabled(True)
        layout = QVBoxLayout(self)
        layout.addWidget(tableview)
        self.setLayout(layout)
 
 
class MyTableModel(QAbstractTableModel):
    def __init__(self, datain, parent=None, *args):
        QAbstractTableModel.__init__(self, parent, *args)
        self.arraydata = datain
 
    def rowCount(self, parent):
        return len(self.arraydata)
 
    def columnCount(self, parent):
        return len(self.arraydata[0])
 
    def data(self, index, role):
        if not index.isValid():
            return QVariant()
        elif role != Qt.DisplayRole:
            return QVariant()
        return QVariant(self.arraydata[index.row()][index.column()])
 
    def flags(self, index):
        if index.column() == 2:
            return Qt.ItemIsSelectable
        return QAbstractTableModel.flags(self, index)
 
if __name__ == "__main__":
    main()

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys
 
my_array = [['00', '01', '02'],
            ['10', '11', '12'],
            ['20', '21', '22']]
 
def main():
    app = QApplication(sys.argv)
    w = MyWindow()
    w.show()
    sys.exit(app.exec_())
 
 
class MyWindow(QWidget):
    def __init__(self, *args):
        QWidget.__init__(self, *args)
 
        sorttablemodel = QSortFilterProxyModel(self)
        tablemodel = MyTableModel(my_array, self)
        sorttablemodel.setSourceModel(tablemodel)
        tableview = QTableView()
        tableview.setModel(sorttablemodel)
        tableview.setSelectionBehavior(QAbstractItemView.SelectRows)
        tableview.setSortingEnabled(True)
        layout = QVBoxLayout(self)
        layout.addWidget(tableview)
        self.setLayout(layout)
 
 
class MyTableModel(QAbstractTableModel):
    def __init__(self, datain, parent=None, *args):
        QAbstractTableModel.__init__(self, parent, *args)
        self.arraydata = datain
 
    def rowCount(self, parent):
        return len(self.arraydata)
 
    def columnCount(self, parent):
        return len(self.arraydata[0])
 
    def data(self, index, role):
        if not index.isValid():
            return QVariant()
        elif role != Qt.DisplayRole:
            return QVariant()
        return QVariant(self.arraydata[index.row()][index.column()])
 
    def flags(self, index):
        if index.column() == 2:
            return Qt.ItemIsSelectable
        return QAbstractTableModel.flags(self, index)
 
if __name__ == "__main__":
    main()

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Cheers

Sebastian

[high_flyer]

I am not a Python coder so I am not sure - but it looks like your are allowing the item to be selectable only if its in column 2.

[SElsner]

For column 2 I specify the item to be ONLY selectable, but not enabled. Other columns get the default flags from the base class implmentation: http://qt-project.org/doc/qt-4.8/qab...del.html#flags
Thanks for having a look!