layers: improve rendering-layer enumeration
authorAndrew Chadwick <andrewc-git@piffle.org>
Sun, 1 Jun 2014 02:01:04 +0000 (03:01 +0100)
committerAndrew Chadwick <andrewc-git@piffle.org>
Sun, 1 Jun 2014 23:14:23 +0000 (00:14 +0100)
commit8eb1201e00e73c6f18950499e14e72ecd0021fad
treec1b847ac14ecdd94b455a9de4217d22cecd538c1
parent1148582b9d037be2c15a52603c68c9849a2deb9b
layers: improve rendering-layer enumeration

* Replace the _enum/get_render_layers() mess with nicer code.
lib/layer.py