Serge NOEL
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
# Has a Virtual SignalHead for a JMRI Panel
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# follow LocoNet messages for an SE8c signal
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#
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# Use this when you have something else
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# controlling the SE8c, and you want to
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# display it on a panel.
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#
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# Note that this can't be perfect. It
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# doesn't know about Held, for example,
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# nor does this implementation handle
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# flashing appearances.
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#
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# Author: Bob Jacobsen, copyright 2016, 2025
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# Part of the JMRI distribution
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import jmri
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import java
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class FollowSE8c(jmri.jmrix.loconet.LocoNetListener):
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def set(self, signalHeadName, lowTurnoutNumber, highTurnoutNumber) :
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self.signal = signals.getSignalHead(signalHeadName)
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self.lowTO = lowTurnoutNumber
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self.highTO = highTurnoutNumber
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# get the LocoNet connection (the first of potentially several LocoNet connections)
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myLocoNetConnection = jmri.InstanceManager.getList(jmri.jmrix.loconet.LocoNetSystemConnectionMemo).get(0);
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myLocoNetConnection.getLnTrafficController().addLocoNetListener(0xFF,self)
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return
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def address(self, message) :
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a1 = message.getElement(1)
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a2 = message.getElement(2)
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return (((a2 & 0x0f) * 128) + (a1 & 0x7f) + 1)
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def closed(self, message) :
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a2 = message.getElement(2)
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return ((a2 & 0x20) != 0)
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def message(self, message):
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if (message.getOpCode() == 0xB0) :
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if (self.address(message) == self.lowTO) :
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if (self.closed(message)) :
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self.signal.setAppearance(GREEN)
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else :
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self.signal.setAppearance(RED)
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if (self.address(message) == self.highTO) :
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if (self.closed(message)) :
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self.signal.setAppearance(DARK)
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else :
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self.signal.setAppearance(YELLOW)
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return
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# Example of use - add a line like the following
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# that includes system or user names for the signal head
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# and the two turnout numbers for the SE8c addresses
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# FollowSE8c().set("CH2001", 301, 302)
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