CODEWITHSUNDEEP
pythonqtpysideqtableviewqabstracttablemodel
Green Cell
Green Cell

Reputation: 4777

PySide QTableView setData for multiple cells

I'm using a QTableView and sub-classed a QAbstractTableModel. When editing a cell I noticed that QAbstractTableModel.setData only goes through the last selected cell. Is there a way to get setData to work with multiple (selected) cells?

As an example of usage:

I tried sub-classing closeEditor, then looping through selectedIndexes to call them with setData, but I don't know how to get the user's input value from closeEditor.

Here's my attempt, almost got it, just need the input value.

def closeEditor(self, editor, hint):
    is_cancelled = (hint == QtGui.QAbstractItemDelegate.RevertModelCache)

    if not is_cancelled:
        for index in self.selectedIndexes():
            if index == self.currentIndex():
                continue

            input_value = ??? # Don't know how to get this from here!

            self.model().setData(index, input_value, QtCore.Qt.EditRole)

    return QtGui.QTableWidget.closeEditor(self, editor, hint)

Upvotes: 2

Views: 1340

Answers (2)

Green Cell
Green Cell

Reputation: 4777

Edit: I was using this as a workaround as there was a bug in PySide where editor was only returning a QWidget. Please look at Kevin Krammer's answer!

Though it's a slight work around, the solution I have so far seems to be working fine. Please let me know if there's a better way, this is a bit long-winded.

In closeEditor I make every cell pass through setData with None as the value.

Then in QAbstractTableModel I have a variable there _input_value that will store the user's input for the rest of the cells to grab.

class TableView(QtGui.QTableView):

    def __init__(self, parent=None):
        super(TableView, self).__init__(parent)

    def closeEditor(self, editor, hint):
        is_cancelled = (hint == QtGui.QAbstractItemDelegate.RevertModelCache)

        if not is_cancelled:
            for index in self.selectedIndexes():
                if index == self.currentIndex():
                    continue

                # Supply None as the value
                self.model().setData(index, None, QtCore.Qt.EditRole)

        # Reset value for next input
        if self.model()._input_value is not None:
            self.model()._input_value = None

        return QtGui.QTableWidget.closeEditor(self, editor, hint)


class TableModel(QtCore.QAbstractTableModel):

    def __init__(self, parent=None):
        super(TableModel, self).__init__(parent)

        self.main_widget = parent

        self._input_value = None

    def setData(self, index, value, role):
        # Triggers if user cancelled input
        if value is None and self._input_value is None:
            return False

        if self._input_value is None:
            # The last selected cell will pass through here to store the value.
            self._input_value = value
        else:
            # All other cells will pass None, so just grab our stored value.
            value = self._input_value

        # Do whatever you want with value now

        return True

Upvotes: 0

Kevin Krammer
Kevin Krammer

Reputation: 5207

The editor in the closeEditor signal is the widget that was used for editing.

If that is, for example a QLineEdit you can read the text of it through its text property.

One way to retrieve the property value is through QObject's property API

value = editor.property("text")

Upvotes: 2

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