#encoding: utf-8

import dia

def test(data, flags):
	classes = []
	layer = dia.active_display().diagram.data.layers[0]
	for obj in layer.objects:
		if obj.type.name == "UML - Class":
			print "\nobject", obj
			CP_ATTR_OFS = 8 # not including the mainpoint
			i = 0
			connections = []
			for cpt in obj.connections : # connection points
				for co in cpt.connected : # connected objects in this point
					connections.append ((i, co))
				i += 1
			attrs = obj.properties['attributes'].value
			for con in connections :
				n = con[0] - CP_ATTR_OFS
				attr = attrs[n/2]
				if (n % 2) == 0 :
					print n, "\t %s left: connected to %s" % (attr[0], con[1])
				else :
					print n, "\t %s right: connected to %s" % (attr[0], con[1])
					
 			#for attr in obj.properties['attributes'].value:
				# attr is a tuple, len(attr) == 9
				# left_connection: attr[7] -> ConnectionPoint
				# right_connection: attr[8] -> ConnectionPoint
			#	if attr[7].connected:
			#		print "\t %s left: connected to %s" % (attr[0],
			#				attr[7].connected)
			#	if attr[8].connected:
			#		print "\t %s right: connected to %s" % (attr[0],
			#				attr[8].connected)
			classes.append(obj)

#dia.register_callback("Test", "<Display>/Debug/AttConns", test)
dia.register_action ("TestAttConns", "Attribute connections", 
                     "/DisplayMenu/Debug/DebugExtensionStart", 
                     test)