[Qt-interest] Model/View delayed loading for large datasets

[Jugdish]

I'm using Qt's model/view framework to implement a tabular display of data
fetched from an SQL database. The dataset is large enough that it is not
practical to populate the table with all the data at once. At the same time,
I'd like to avoid the use of pagination to break up the results into pages
(end-users have expressed a distaste for this method of navigating through
the data).

So I'd like to implement an efficient method of loading the data
incrementally so that only the data currently visible in the viewport is
actually fetched from the database. First, the total item count would be
determined from the database. The viewport's scrollbars would be sized based
on this number, but the actual data (and model indexes) would not be loaded
until the user scrolls to a particular offset in the viewport. What I'm
wondering is if this idea is even possible using Qt's model/view framework.

Thank you!
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