[Kde-pim] Progress on the models stuff I've been doing

[Stephen Kelly]

Hi,

A few days ago I checked in some enhancements and documentation for the 
EntityTreeModel stuff I've been doing. 

http://websvn.kde.org/trunk/playground/pim/kjotsrewrite/akonadi_next/

http://api.kde.org/playground-api/pim-
apidocs/kjotsrewrite/akonadi_next/html/index.html

I also have some notes in entitytreemodel.h about the stuff that needs to be 
done. Please read and review the notes and documentation. I'd also like to 
hear what you think about the design or the idea that every akonadi 
application would have an EntityTreeModel at its core. Note that it has api 
like getCollection(Collection::Id) for syncronous access to entites that the 
application pulled from akonadi.

 The implementation still needs some work, and I need to write another few 
classes before real applications can be made with it. Also the Collection 
move and Item move stuff I brought up in Osnabruck needs to be finished before 
moving by drag and drop (and moves reported by akonadi) work right.

I'll also write a Akonadi::AbstractEntityModel which adds a 
indexAboutToBeMoved signal and a Akonadi::AbstractProxyModel which handles 
and reemits that signal.

http://thread.gmane.org/gmane.comp.lib.qt.general/10723

I feel like these classes are a bit out on the edge, so I want to make sure 
that other akonadi people know about them and agree that they are useful and 
if they don't agree then say so. They are intended to replace 
CollectionModel and ItemModel. They implement lazy population using 
canFetchMore, but there is no API for pruning a tree yet. I'll maybe add 
that too if it's really needed.

I'll be writing a couple of example applications hopefully before Berlin 
including one using a calendar/korganizer-like 
proxymodel which makes an EntityTree look like a time table of events. 

All the best,

Steve


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