only create a gui object if there are coordinates to draw
commit890b55115f6820575a7f7fb4211edc19bc55bb57
authorJochen Keil <jochen.keil@gmail.com>
Mon, 21 Jun 2010 17:18:01 +0000 (21 19:18 +0200)
committerJochen Keil <jochen.keil@gmail.com>
Mon, 21 Jun 2010 17:19:20 +0000 (21 19:19 +0200)
tree7af922d11fcb18b4c2009852cbb3f9ba8077f4d1
parentda2e3e9448e03c2ecc5c2b780915dab8d09fb0ec
only create a gui object if there are coordinates to draw
notify observer only if there are coordinates
use correct constructor call
Environment.java