[Qgis-developer] Removing layers in QGIS

[Martin Dobias]

Hi Marco,

recently I've found out that removing layer has 2 different
implementations - one in QgsLegend, another in QgisApp (this one even
doesn't work correctly). I wanted to fix that with using
QgsLegend::removeLayer(), but I've found inconsistency: in QgisApp,
layer is erased from map layer registry, while in QgsLegend this is
not happening.

My question is - what is the policy of using map layer registry (who
is responsible for adding/removing from it etc.). This would be good
to decide, also with regard to possibility to have multiple map
canvases or embedding canvas and legend to other projects.

Regards,
Martin