QDateEdit With DataMapper - No Tab traversing?

[fifth]

Not sure if this is a qt, pyqt (or something in my os environment)
problem, but...

I have a QDateEdit widget which is mapped to a database date field.
The issue I have is ...

I can tab into the widget, ie into the 'dd' of 'dd/MM/yyyy' but cannot
tab onto the 'MM' and from MM cannot tab to 'yyyy'. However, I can tab
from 'yyyy' to another control.

If I comment out the datamapper line then I can use tab as expected.

I have checked the book examples from Rapid GUI Programming with
Python and PyQt and see the same problem there.

My versions are 'Python 2.5.2 - Qt 4.3.4- PyQt 4.3.3 on Linux 2.6.24-19-generic'.
However, I've also tested this on WinXP using a PyQt-Py2.5-gpl-4.4.2-1 install
with the same results.

Any help would be much appreciated as this is kinda a show stopper for
me - I am trying to make this form as quick as possible to use for
processing orders.

Chris.

[fifth]

Can anyone confirm if this is expected behaviour? Also a quick (python) example of the issue,

#!/usr/bin/env python
import os
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtSql import *
 
class ExampleDlg(QDialog):
 
    def __init__(self, parent=None):
        super(ExampleDlg, self).__init__(parent)
 
        label1 = QLabel("First Edit:")
        self.edit1 = QLineEdit()
        label2 = QLabel("Unmapped:")
        self.dateTime1 = QDateTimeEdit()
        label3 = QLabel("Mapped:")
        self.dateTime2 = QDateTimeEdit()
        label4 = QLabel("Second Edit:")
        self.edit2 = QLineEdit()
 
        fieldLayout = QGridLayout()
        fieldLayout.addWidget(label1, 0, 0)
        fieldLayout.addWidget(self.edit1, 0, 1, 1, 3)
        fieldLayout.addWidget(label2, 1, 0)
        fieldLayout.addWidget(self.dateTime1, 1, 1)
        fieldLayout.addWidget(label3, 1, 2)
        fieldLayout.addWidget(self.dateTime2, 1, 3)
        fieldLayout.addWidget(label4, 2, 0)
        fieldLayout.addWidget(self.edit2, 2, 1, 1, 3)
        self.setLayout(fieldLayout)
 
        self.model = QSqlRelationalTableModel(self)
        self.model.setTable("calls")
        self.model.select()
 
        self.mapper = QDataWidgetMapper(self)
        self.mapper.setSubmitPolicy(QDataWidgetMapper.ManualSubmit)
        self.mapper.setModel(self.model)
        self.mapper.setItemDelegate(QSqlRelationalDelegate(self))
        self.mapper.addMapping(self.edit1, 1)
        #self.mapper.addMapping(self.dateTime1, 2)
        self.mapper.addMapping(self.dateTime2, 3)
        self.mapper.addMapping(self.edit2, 4)
        self.mapper.toFirst()
 
app = QApplication(sys.argv)
filename = os.path.join(os.path.dirname(__file__), "example.db")
db = QSqlDatabase.addDatabase("QSQLITE")
db.setDatabaseName(filename)
if not db.open():
    sys.exit(1)
form = ExampleDlg()
form.show()
sys.exit(app.exec_())

#!/usr/bin/env python
import os
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtSql import *

class ExampleDlg(QDialog):

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

        label1 = QLabel("First Edit:")
        self.edit1 = QLineEdit()
        label2 = QLabel("Unmapped:")
        self.dateTime1 = QDateTimeEdit()
        label3 = QLabel("Mapped:")
        self.dateTime2 = QDateTimeEdit()
        label4 = QLabel("Second Edit:")
        self.edit2 = QLineEdit()

        fieldLayout = QGridLayout()
        fieldLayout.addWidget(label1, 0, 0)
        fieldLayout.addWidget(self.edit1, 0, 1, 1, 3)
        fieldLayout.addWidget(label2, 1, 0)
        fieldLayout.addWidget(self.dateTime1, 1, 1)
        fieldLayout.addWidget(label3, 1, 2)
        fieldLayout.addWidget(self.dateTime2, 1, 3)
        fieldLayout.addWidget(label4, 2, 0)
        fieldLayout.addWidget(self.edit2, 2, 1, 1, 3)
        self.setLayout(fieldLayout)

        self.model = QSqlRelationalTableModel(self)
        self.model.setTable("calls")
        self.model.select()

        self.mapper = QDataWidgetMapper(self)
        self.mapper.setSubmitPolicy(QDataWidgetMapper.ManualSubmit)
        self.mapper.setModel(self.model)
        self.mapper.setItemDelegate(QSqlRelationalDelegate(self))
        self.mapper.addMapping(self.edit1, 1)
        #self.mapper.addMapping(self.dateTime1, 2)
        self.mapper.addMapping(self.dateTime2, 3)
        self.mapper.addMapping(self.edit2, 4)
        self.mapper.toFirst()

app = QApplication(sys.argv)
filename = os.path.join(os.path.dirname(__file__), "example.db")
db = QSqlDatabase.addDatabase("QSQLITE")
db.setDatabaseName(filename)
if not db.open():
    sys.exit(1)
form = ExampleDlg()
form.show()
sys.exit(app.exec_())

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I've noticed you can still navigate through the QDateEdit using the cursor keys or by entering values, but would expect to be able to navigate through the form widgets using tab.

[fifth]

Anyone?

I'm struggling with this. Is there any way I can capture the key event for Tab and change the QDateEdit section by code?