layerswindow: use even more finer-grained updates
authorAndrew Chadwick <andrewc-git@piffle.org>
Sun, 25 May 2014 01:25:03 +0000 (02:25 +0100)
committerAndrew Chadwick <andrewc-git@piffle.org>
Sun, 1 Jun 2014 23:14:23 +0000 (00:14 +0100)
commit779b23849d18b31c63c8b9704493e06388491110
tree1b8ae30731ba2508570ac18241c31fe063bc382c
parentc771aba033cc0a8dc5d66a2dfe52dd2a23cbc0f7
layerswindow: use even more finer-grained updates

Replace remaining hooks into doc_observers with finer-grained observer
methods invoked in response to the layer tree changing.

https://gna.org/bugs/?21845
https://gna.org/bugs/?21844
gui/layerswindow.py