QItemDelegate's QComboBox default value?

[jkrienert]

Is there a legitimate means of setting a models value via a delegated QComboBox's default value (within a QtableView)?
Upon clicking the ComboBox, the model data is properly registered - but prior to this, the data is empty.

This is because @ the comboBox's creation, the index is effectively '-1' correct?

I have tried to emplace various calls to:
QComboBox.setCurrentIndex(0) within the delegate, but because it has yet to return the editor object to the View, the signal for 'currentIndexChanged' is never called, and thus the data model is never updated.

I suppose I could blunt code editing of the model data from the View class with hard strings for the default values - but I wondered if there was a means of keeping in 'sync' with the comboBox.


[SIDE NOTE: Is it possible to set a stylesheet within the delegate for the combobox? Currently unable to with 'confinedCombo.setStyleSheet(...)']

Thanks.

class quiteANiceView(QtGui.QDialog, QtGui.QWidget):
    def __init__(self, iface, editorType, directory, parent=None):
        super(shapeCSVeditor, self).__init__(parent)
        self.iface = iface
        self.interpol = interpol()
        self.editorType = editorType
        self.directory = directory
        self.tableView = QtGui.QTableView(self)
        ...
        if 'Layer-Options' in self.editorType:
            self.tableView.setItemDelegateForColumn(1,confineComboDelegate(self.tableView))
            self.tableView.openPersistentEditor(self.tableData.index(row, 1)
        ...
 
class confineComboDelegate(QtGui.QItemDelegate):
    def __init__(self, parent):
        QtGui.QItemDelegate.__init__(self, parent)
    def createEditor(self, parent, option, index):
        confiningChoices = ['True','False']
        confineCombo = QtGui.QComboBox(parent)
        confineCombo.addItems(self.confiningChoices)
        confineCombo.currentIndexChanged[int].connect(self.currentIndexChanged)
        return confineCombo
    def setEditorData(self, editor, index):
        editor.blockSignals(True)
        try: idxConversion = self.confiningChoices.index(index.model().data(index,Qt.DisplayRole))
        except: idxConversion = 0
        editor.setCurrentIndex(int(idxConversion))
        editor.blockSignals(False)
    def setModelData(self, editor, model, index):
        model.setData(index, self.confiningChoices[editor.currentIndex()],Qt.EditRole)
    @QtCore.pyqtSlot(int)
    def currentIndexChanged(self):
        self.commitData.emit(self.sender())

class quiteANiceView(QtGui.QDialog, QtGui.QWidget):
    def __init__(self, iface, editorType, directory, parent=None):
        super(shapeCSVeditor, self).__init__(parent)
        self.iface = iface
        self.interpol = interpol()
        self.editorType = editorType
        self.directory = directory
        self.tableView = QtGui.QTableView(self)
        ...
        if 'Layer-Options' in self.editorType:
            self.tableView.setItemDelegateForColumn(1,confineComboDelegate(self.tableView))
            self.tableView.openPersistentEditor(self.tableData.index(row, 1)
        ...

class confineComboDelegate(QtGui.QItemDelegate):
    def __init__(self, parent):
        QtGui.QItemDelegate.__init__(self, parent)
    def createEditor(self, parent, option, index):
        confiningChoices = ['True','False']
        confineCombo = QtGui.QComboBox(parent)
        confineCombo.addItems(self.confiningChoices)
        confineCombo.currentIndexChanged[int].connect(self.currentIndexChanged)
        return confineCombo
    def setEditorData(self, editor, index):
        editor.blockSignals(True)
        try: idxConversion = self.confiningChoices.index(index.model().data(index,Qt.DisplayRole))
        except: idxConversion = 0
        editor.setCurrentIndex(int(idxConversion))
        editor.blockSignals(False)
    def setModelData(self, editor, model, index):
        model.setData(index, self.confiningChoices[editor.currentIndex()],Qt.EditRole)
    @QtCore.pyqtSlot(int)
    def currentIndexChanged(self):
        self.commitData.emit(self.sender())

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