[SoC] QGIS on steroids - week #6

[Martin Dobias]

Hi!

I have concentrated on redesign and implementation of read access to
features from vector layers. The design is based on iterator pattern
and aims to keep backward compatibility with the previous access
method. See [1] for details.

I've done also some digging into raster code: it still doesn't allow
to stop the rendering of raster while it's in progress and it doesn't
show intermediate results.

I'm not blocked on anything in particular, though I would welcome more
feedback on the new API for access to vector layers (from anyone with
some experience with handling of vector data).

Next week I'd like to convert the rest of the data providers to new
API (7 more if I count correctly) if there are no objections and dig a
little bit more into the raster code to see how the user feedback
could be improved.

[1] http://lists.osgeo.org/pipermail/qgis-developer/2010-July/010381.html

Bye
Martin