Transform multiple controllers at once

containerAnim

'''
Save the file to Maya script folder and then just
run this three-line code in script editor to call the UI
import maya.cmds as mc
import containerAnim
containerAnim.containerAnim().UI()
'''

import maya.cmds as mc

class containerAnim( object ):
	
	winName = "group_transform"
	
	def __init__( self ):
		self.scrJob = -1
		self.scrAnimJob = -1
		self.scrUpdateJob = -1
		self.scrUIJob = -1
		self.cube = ''
		self.sel = []
		self.lock = 2
		self.worldRotPivot = []
		self.worldScPivot = []
		self.currentT = None
		
	# Create UI
	def UI( self ):
		if mc.window( self.winName, ex=1 ):
			mc.deleteUI( self.winName )
		self.win = mc.window( self.winName, cc=self.deleteMoveJob, tlb=1, t="Group transform" )
		self.frame = mc.formLayout( p=self.win )
		self.mainButton = mc.button( l="Start", bgc=(0.25,0.5,0), c=lambda *x:self.changeButtonState(), p=self.frame )
		self.refTF = mc.textField( h=25, cc=lambda *x: self.changeCubePivot() )
		mc.popupMenu( p=self.refTF )
		mc.menuItem( l='Save pivot', c=lambda *x: self.updatePivot( 'save' ) )
		mc.menuItem( l='Delete pivot', c=lambda *x: self.updatePivot( 'delete' ) )
		self.pickButton = mc.button( l="Pick", h=23, c=lambda *x:self.changeRefTF(), p=self.frame )
		mc.formLayout( self.frame, e=1, af=( self.mainButton, 'top', 2 ) )
		mc.formLayout( self.frame, e=1, af=( self.mainButton, 'left', 2 ) )
		mc.formLayout( self.frame, e=1, ac=( self.mainButton, 'bottom', 3, self.pickButton ) )
		mc.formLayout( self.frame, e=1, af=( self.mainButton, 'right', 2 ) )	
		mc.formLayout( self.frame, e=1, af=( self.refTF, 'left', 1 ) )
		mc.formLayout( self.frame, e=1, ac=( self.refTF, 'right', 2, self.pickButton ) )
		mc.formLayout( self.frame, e=1, af=( self.refTF, 'bottom', 3 ) )
		mc.formLayout( self.frame, e=1, af=( self.pickButton, 'bottom', 4 ) )
		mc.formLayout( self.frame, e=1, af=( self.pickButton, 'right', 2 ) )
		mc.showWindow()
		mc.window( self.win, e=1, w=120, h=66 )
	
	# Move child objects accordingly to the container
	def transformObj( self ):
		try:
			mc.undoInfo( ock =1 )
			# If reference pivot object exist check counter, if counter = 2 mean that frame is still and we can move the childs
			if self.lock == 2:
				for s in xrange( len( self.sel ) ):
					mc.matchTransform( self.sel[s], self.childPoints[s] )
			# Contibue to reset counter in case of fast frame switching
			if self.lock == 1:
				self.lock = 2 	
		finally:
			mc.undoInfo( cck =1 )
	
	# Edit conrainer object 
	def initGrpSelection( self ):
		if self.currentT != mc.currentTime( q=1 ):
			bbox = mc.exactWorldBoundingBox( self.sel, ii=1 )
			center = [ sum(k)/2.0 for k in [ bbox[0::3], bbox[1::3], bbox[2::3] ] ]
			dims = [ k[1] - k[0] for k in [ bbox[0::3], bbox[1::3], bbox[2::3] ] ]
			cubenode = mc.listHistory( self.cube[0], pdo=1, il=0 )[0]
			mc.setAttr( cubenode + '.width', dims[0] )
			mc.setAttr( cubenode + '.height', dims[1] )
			mc.setAttr( cubenode + '.depth', dims[2] )
			mc.xform( self.grp, ws=1, t=center, p=1 )
			mc.makeIdentity( self.cube[0], apply=False, t=1, r=1, s=1 ) 
			self.changeCubePivot()
			mc.xform( self.cube[0], ws=1, t=center, p=1 )
			if self.worldRotPivot and self.worldScPivot:
				mc.xform( self.cube[0], ws=1, rp=self.worldRotPivot )
				mc.xform( self.cube[0], ws=1, sp=self.worldScPivot )
			# If reference pivot object exist add counter to protect autokey while fast frame switch
			refNode = mc.textField( self.refTF, q=1, tx=1 )
			if ( self.worldRotPivot and self.worldScPivot ) or ( refNode and mc.objExists( refNode ) ):
				if self.lock == 2:
					self.lock = 1
			else:
				self.lock = 2
			self.currentT = mc.currentTime(q=1)
			
	def updatePivot( self, state ):
		if state == 'save':
			if self.cube:
				self.worldRotPivot = mc.xform( self.cube[0], ws=1, q=1, rp=1 )
				self.worldScPivot = mc.xform( self.cube[0], ws=1, q=1, sp=1 )
		elif state == 'delete':
			self.worldRotPivot = []
			self.worldScPivot = []
			if self.cube:
				mc.xform( self.cube[0], cpc=1 )
			
	def changeCubePivot( self ):
		if mc.button( self.mainButton, q=1, l=1) == 'Stop':
			refNode = mc.textField( self.refTF, q=1, tx=1 )
			if refNode and mc.objExists( refNode ):
				mc.xform( self.cube[0], ws=1, rp=mc.xform( refNode, q=1, ws=1, rp=1 ), p=1 )
				mc.xform( self.cube[0], ws=1, sp=mc.xform( refNode, q=1, ws=1, sp=1 ), p=1 )
			else:
				bbox = mc.exactWorldBoundingBox( self.sel, ii=1 )
				center = [ sum(k)/2.0 for k in [ bbox[0::3], bbox[1::3], bbox[2::3] ] ]
				mc.xform( self.cube[0], ws=1, rp=center, p=1 )
				mc.xform( self.cube[0], ws=1, sp=center, p=1 )
		
	# Scriptjob when container moved
	def startMoveJob( self ):
		self.cubePos = mc.xform( self.cube[0], ws=1, a=1, q=1, t=1 )
		self.cubeRot = mc.xform( self.cube[0], ws=1, a=1, q=1, ro=1 )
		mc.select( self.cube[0], r=1 )
		self.scrJob = mc.scriptJob( attributeChange=[ self.cube[0] + '.xformMatrix', self.transformObj ], cu=1, kws=1 ) 
	
	# Scriptjob when current frame changed
	def startAnimJob( self ):
		try:
			self.initGrpSelection()
		except: pass
		for s in xrange( len( self.sel ) ):
			mc.matchTransform( self.childPoints[s], self.sel[s] )
	
	# Switch main button state
	def changeButtonState( self ):
		if mc.button( self.mainButton, q=1, l=1) == 'Start':
			self.start()
			if mc.ls( sl=1 ):
				mc.button( self.mainButton, e=1, l='Stop', bgc=(0.5,0,0.25) )
		else:
			self.deleteMoveJob()
			mc.button( self.mainButton, e=1, l='Start', bgc=(0.25,0.5,0) )
	
	# Stop all scriptjobs		
	def deleteMoveJob( self ):
		if mc.scriptJob ( ex = self.scrAnimJob ):
			mc.scriptJob ( k = self.scrAnimJob )
			mc.delete( 'groupMoveContainer' )
			mc.select( self.sel, r=1 )
		if mc.scriptJob( ex = self.scrJob ):
			mc.scriptJob( k = self.scrJob )
		if mc.scriptJob( ex = self.scrUpdateJob ):
			mc.scriptJob ( k = self.scrUpdateJob )
		self.currentT = None
			
	# Start all scrip jobs
	def start( self ):
		self.sel = mc.ls( sl=1 )
		self.childPoints = []
		if len( self.sel ) > 0:
			# Create container object
			self.cube = mc.polyCube( n='cubeMoveContainer' )
			mc.setAttr( self.cube[0] + '.overrideEnabled', 1 )
			mc.setAttr( self.cube[0] + '.overrideShading', 0 )
			self.grp = mc.group( em=1, n='groupMoveContainer' )
			mc.evalDeferred( "mc.parent( '%s', '%s' )" %( self.cube[0], self.grp ) )
			mc.evalDeferred( self.startAnimJob )
			for s in xrange( len( self.sel ) ):
				loc = mc.group( em=1, n=self.sel[s] + '_Grouploc' )
				mc.evalDeferred( "mc.parent( '%s', '%s' )" %( loc, self.cube[0] ) )
				self.childPoints.append(loc)
			mc.evalDeferred( self.startMoveJob )
			self.scrAnimJob = mc.scriptJob( tc=( self.startAnimJob ), cu=1, kws=1 ) 
			self.scrUpdateJob = mc.scriptJob( e=[ 'SelectionChanged', self.updateChildPoints ], cu=1, kws=1 ) 
			self.scrUIJob = mc.scriptJob( e=[ 'PostSceneRead', self.updateUI ] ) 
		else:
			mc.warning( 'Select at least one object' )
			
	def updateUI( self ):
		if not mc.scriptJob ( ex = self.scrAnimJob ):
			mc.button( self.mainButton, e=1, l='Start', bgc=(0.25,0.5,0) )
			mc.textField( self.refTF, e=1, tx='' )
			
	def updateChildPoints( self ):
		if len( mc.ls( sl=True ) ) == 1 and mc.ls( sl=True )[0] == self.cube[0]:
			for s in xrange( len( self.sel ) ):
				mc.matchTransform( self.childPoints[s], self.sel[s] )
			refNode = mc.textField( self.refTF, q=1, tx=1 )
			if refNode and mc.objExists( refNode ):
				mc.xform( self.cube[0], ws=1, rp=mc.xform( refNode, q=1, ws=1, rp=1 ), p=1 )
				mc.xform( self.cube[0], ws=1, sp=mc.xform( refNode, q=1, ws=1, sp=1 ), p=1 )
				
	# Cahnge reference pivot object by 'Pick' button
	def changeRefTF( self ):
		sel = mc.ls( sl=1, l=1 )
		if sel:
			mc.textField( self.refTF, e=1, tx=sel[0] )
			self.changeCubePivot()