Serge NOEL
49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
# If you have an external signal system, not run
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# by JMRI, and you want to put SignalHeads on a
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# JMRI panel, this script will listen to Sensors
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# that are connected to that external signal system
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# and drive the appearance of a SignalHead within JMRI.
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#
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# Note that the SignalHead objects need to have been
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# previously defined, e.g. by a panel file. If you
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# just want to put them on a panel, they can be Virtual SignalHeads,
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# or they can be of a type that'll drive real hardware, whatever
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# you need; the script doesn't care.
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#
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# Author: Bob Jacobsen, copyright 2013
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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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import java.beans
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# Define the listener.
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class SignalSensorListener(java.beans.PropertyChangeListener):
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def set(self, signal, sensor, appearance) :
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if (sensor == None) : return
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self.signal = signals.getSignalHead(signal)
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self.appearance = appearance
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sensors.provideSensor(sensor).addPropertyChangeListener(self)
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return
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def propertyChange(self, event):
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print "change",event.propertyName
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print "from", event.oldValue, "to", event.newValue
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print "source systemName", event.source.systemName
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print "source userName", event.source.userName
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if (event.newValue == ACTIVE) :
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self.signal.setAppearance(self.appearance)
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return
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# Define a service routine to create multiple listeners
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def connect(signal, red, yellow, green) :
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SignalSensorListener().set(signal,red,RED)
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SignalSensorListener().set(signal,yellow,YELLOW)
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SignalSensorListener().set(signal,green,GREEN)
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return
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# Example of use - add a line like this for
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# each signal head and red, yellow, green input
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# you'd like. Use None if a color input doesn't exist.
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connect("IH1","LS1001","LS1002","LS1003")
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