Serge NOEL
73 lines
3.0 KiB
Python
73 lines
3.0 KiB
Python
# Make a set of turnouts follow a single one
|
|
# *) Changes to commanded state of the master are copied to the followers
|
|
# *) Changes to the known state of the followers map to the known state of the master,
|
|
# following the rules (first applied wins)
|
|
# Any UNKNOWN -> UNKNOWN
|
|
# Any INCONSISTENT -> INCONSISTENT
|
|
# All THROWN -> THROWN
|
|
# All CLOSED -> CLOSED
|
|
# Otherwise, INCONSISTENT
|
|
#
|
|
# This is hard to do properly in Logix due to limited access to states
|
|
# and events (can't tell which change happened due to what)
|
|
#
|
|
# Author: Bob Jacobsen, copyright 2017
|
|
# Part of the JMRI distribution
|
|
|
|
import jmri
|
|
import java
|
|
import java.beans
|
|
|
|
# Define the listener.
|
|
class CombineTurnouts(java.beans.PropertyChangeListener):
|
|
def set(self, masterName, followerList) :
|
|
self.master = turnouts.getTurnout(masterName)
|
|
self.followers = followerList
|
|
# force set the initial state
|
|
for follower in self.followers :
|
|
turnouts.getTurnout(follower).setCommandedState(self.master.getCommandedState())
|
|
# set up listeners
|
|
self.master.addPropertyChangeListener(self)
|
|
for follower in self.followers :
|
|
turnouts.getTurnout(follower).addPropertyChangeListener(self)
|
|
return
|
|
def propertyChange(self, event):
|
|
# print "Receive change of", event.propertyName, "from", self.master.describeState(event.oldValue), "to", self.master.describeState(event.newValue), "in", event.source.userName
|
|
# if a change to master commanded state
|
|
if (event.source == self.master and event.propertyName == "CommandedState" ) :
|
|
for follower in self.followers :
|
|
if (self.master.getCommandedState() != turnouts.getTurnout(follower).getCommandedState()) :
|
|
turnouts.getTurnout(follower).setCommandedState(self.master.getCommandedState())
|
|
elif (event.source != self.master and event.propertyName == "KnownState" ):
|
|
# otherwise, do the KnownState rules
|
|
for follower in self.followers :
|
|
if (turnouts.getTurnout(follower).getKnownState() == UNKNOWN) :
|
|
self.master.newKnownState(UNKNOWN)
|
|
return
|
|
for follower in self.followers :
|
|
if (turnouts.getTurnout(follower).getKnownState() == INCONSISTENT) :
|
|
self.master.newKnownState(INCONSISTENT)
|
|
return
|
|
OK = True
|
|
for follower in self.followers :
|
|
if (turnouts.getTurnout(follower).getKnownState() != CLOSED) :
|
|
OK = False
|
|
if (OK) :
|
|
self.master.newKnownState(CLOSED)
|
|
return
|
|
OK = True
|
|
for follower in self.followers :
|
|
if (turnouts.getTurnout(follower).getKnownState() != THROWN) :
|
|
OK = False
|
|
if (OK) :
|
|
self.master.newKnownState(THROWN)
|
|
return
|
|
self.master.newKnownState(INCONSISTENT)
|
|
return
|
|
|
|
# Example of use - add lines like the following
|
|
# that includes system or user names for the master turnout and
|
|
# the array of followers. These must already exist.
|
|
# CombineTurnouts().set("IT100",["IT101", "IT102"])
|
|
|