# SPACEHANDLER.VIEW3D.EVENT

# toggle between the first two armature layers of the selected armature
# usage:
# load this script into the blender text editor, press alt+p. Activate the Spacehandler
# (View->Space Handler Scripts->ToggleArmLayers). Press the 2 key to toggle.

# -------------------------------------------------------------------------- 
# ***** BEGIN GPL LICENSE BLOCK ***** 
# 
# This program is free software; you can redistribute it and/or 
# modify it under the terms of the GNU General Public License 
# as published by the Free Software Foundation; either version 2 
# of the License, or (at your option) any later version. 
# 
# This program is distributed in the hope that it will be useful, 
# but WITHOUT ANY WARRANTY; without even the implied warranty of 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
# GNU General Public License for more details. 
# 
# You should have received a copy of the GNU General Public License 
# along with this program; if not, write to the Free Software Foundation, 
# Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. 
# 
# ***** END GPL LICENCE BLOCK ***** 

import Blender
from Blender import Draw, Window

evt = Blender.event
return_it = False

def toggle():
	# toggle between the first two armature layers of the selected armature
	import Blender
	from Blender import Armature

	scn= Blender.Scene.GetCurrent()
	ob= scn.objects.active

	if ob.type == 'Armature':

		b = ob.getData()	# get armature
		
		if b.layerMask & 1:
			mask = b.layerMask & (255 << 2 )
			mask |= 2
			b.layerMask = mask
		else:
			if b.layerMask & 2:
				mask = b.layerMask & (255 << 2 )
				mask |= 1
				b.layerMask = mask
				
		Blender.Window.RedrawAll()

if( not Window.EditMode() ):
	if evt == Draw.TWOKEY:
	  toggle()
	  Blender.event = None
	else:
	  return_it = True