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Qt-interest Archive, April 2007
How does QItemSelectionModel behave when adding/removing rows ?

• Subject: How does QItemSelectionModel behave when adding/removing rows ?
• From: Nicolas Castagne <castagne@xxxxxxx>
• Date: Fri, 20 Apr 2007 10:51:29 +0200
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Hi all,

Before starting some heavy coding, I'd need to understand how instances of
QItemSelectionModel behave when rows are added/removed to/from the model.

Since QItemSelectionModel does not have "rowsInserted /
rowsAboutToBeRemoved" slots (such as QAbstractItemView), I guess that a
SelectionModel may not maintain by itself the validity of its
QModelIndexes...
Is that correct ?

In other words, when instanciating a QItemSelectionModel of my own (not
within a view), do I have to add/remove/maintain its QModelIndexes myself
when rows are added/removed in the model ?
Or does Qt silently does this for me ?

Thanks for any hint,
Best-
Nicolas

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