Selections in the model-view-presenter framework

[Malte Persike]

Hello everybody.

Since I've been pointed to the MVP framework by a gentle user in this
newsgroup I took quite some time to study this rather complex pattern.
Unfortunately, all the references I came across tend to demonstrate
MVP by devising simple example implementations which naturally cannot
cover all the details of the pattern.

My question adresses the issue of selections within MVP. Consider an
audioplayer that can play a number of songs in a row and provides a
"repeat A-B" functionality where one can play a specified part of a
song.
In this case, there exist at least 3 different selections upon the
model: a) the current song, b) the current playback position and c)
the range selection.

How should such a variety of selections be implemented in MVP - as one
selection with three different properties or as three selections,
handled by the presenter?

Kind regards,
Malte

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[EventHelix.com]

The three selections could be stored as three different variables
in the model.

For a simple implementation of the MVP framework have a look at MFC.
In MFC, the CDocument class corresponds to the model.

Sandeep
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