CheckStateRole and TriState

[BreakBad]

Qt 4.7.3
PySide 1.1.0

My QTreeView has a QSortFilterProxyModel and in the flags I've added ItemIsUserCheckable and ItemIsTristate. When the tree displays, it displays correctly, some boxes are unchecked, some checked, and some partially checked.

Problem: When clicking through a checkbox's states, it will successfully go from partially checked, to checked and from checked to unchecked. However, when clicking an unchecked box, the setData method prints that is is trying to set a QtCore.Qt.Checked value instead of partially checked. Therefor I am unable to set an item back to a partially checked state.

What would prevent the click from sending a partiallychecked value in the signal?

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Added after 1 13 minutes:

To answer my own question (again), I had to browser the API for QAbstractButton and found this in the nextCheckState method:

This virtual handler is called when a button is clicked. The default implementation calls setChecked(!isChecked()) if the button isCheckable(). It allows subclasses to implement intermediate button states.

So I merely have to implement the setData method to accommodate.

[KeltGreet]

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