another interesting bug.. this time performance related

[Aaron J. Seigo]

On Saturday, February 19, 2011, Marco Martin wrote:
> crazy idea: what about qml-ifing the taskbar right now?

that's an excellent crazy idea. let's do it.

> since is the most complex applet will still be a c++ one (that would just
> show a DeclarativeWidget and nothing else)

yes, that'll make a lot of things easier.
 
> i have no idea how much work would take, the only hard thing seems to be a
> correct handling of grouping (i guess it will have to be written a
> qabstractitemmodel that maps to what libtaskmanager says)

i could write that model. what i'm thinking is a model that lives in 
libtaskmanager and which would be used like this:

TaskManager::GroupManager *grouper = new TaskManager::GroupManager(this);
TaskManager::TaskModel *model = new TaskManager::TaskModel(grouper);

all settings and handling would be applied to the GroupManager and the Model 
would reflect those changes. this is already what the tasks widget does, only 
without a model, so it should be quite doable.

another difficult part might be the user interaction for manual sorting and 
grouping. we need to be able to let the user start a QDrag for manual 
grouping. sorting can be done all within the QML widget, so that shouldn't be 
too hard? only trick is that it will need to let the Applet know so it can let 
the GroupManager know ... 

this is probably beyond my QML skills as i still haven't found the time to 
properly throw myself into QML yet. but i'm happy to write the model and 
retro-fit the tasks widget for a QML widget.

-- 
Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA  EE75 D6B7 2EB1 A7F1 DB43

KDE core developer sponsored by Qt Development Frameworks
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