Serge NOEL
116 lines
3.8 KiB
Python
116 lines
3.8 KiB
Python
# This is a proof of concept script showing how to bridge a throttle
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# from one system to another.
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#
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# The test configuration for this scrip has a LocoNet system
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# configured as the first connection and an XPressNet based system
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# configured as the second connection. This means the XpressNet based
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# system's ThrottleManager is the system throttle manager.
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#
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# If you are using software throttles, this should work with any system
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# as the controlling throttles, so long as that system is listed as the
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# last connection in the connection preferences.
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#
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# If you want to control the trains with a hardware throttle, the system
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# you use needs to be able to get updates about the throttle status from
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# the layout. This is not possible with all systems.
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#
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# In this version of the script, the controlled system MUST be a
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# LocoNet based system. If you have more than one loconet
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# connection configured, the first loconet connection in the list of
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# loconet connections will be used.
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#
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# This version of the script works with address 3.
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#
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# Author: Paul Bender, copyright 2004,2010
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# Part of the JMRI distribution
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#
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import jmri
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import java
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import java.beans
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from time import sleep
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# define some global objects as placeholders
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# First, define the property change listener. for the
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# throttle. This one sends speed and direction information
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# to the second loconet throttle and prints information about
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# received events.
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class tbListener(java.beans.PropertyChangeListener):
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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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if(a.lnSlot == None):
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return
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if(event.propertyName == "isForward"):
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a.lnThrottle.setIsForward(event.newValue)
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if(event.propertyName == "SpeedSetting"):
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a.lnThrottle.setSpeedSetting(event.newValue)
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# Second, we create a listener for the loconet slot
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# this listener is necessary to create the loconet
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# throttle.
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class tbSlotListener(jmri.jmrix.loconet.SlotListener):
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def notifyChangedSlot(self,slot):
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print "slot changed"
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if(a.lnSlot == None):
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a.lnSlot = slot
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a.lnThrottle = jmri.jmrix.loconet.LocoNetThrottle(slot);
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# class to keep this thread running
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class ThrottleBridge(jmri.jmrit.automat.AbstractAutomaton) :
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# we need some class global data for items we can't initilize
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# until we get some information back from the layout
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lnThrottle = None
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lnSlot = None
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#init() is called exactly once at the begining to do any
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#necessary configuration
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def init(self):
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# we want to get a throttle for two systems assigned
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# to the same address.
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# One throttle is easy, all we need to do is
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# call the getThrottle routine
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self.xnThrottle = self.getThrottle(3,False);
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if (self.xnThrottle == None) :
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print "Couldn't assign throttle!"
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else:
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# If the throttle was available, then we need to add
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# a throttle listener to it
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self.tl = tbListener()
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self.xnThrottle.addPropertyChangeListener(self.tl)
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# and then request the second throttle.
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# The second throttle takes more work, because
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# it isn't the default manager.
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self.sl = tbSlotListener()
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lnMemo=jmri.InstanceManager.getList(jmri.jmrix.loconet.LocoNetSystemConnectionMemo).get(0);
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lnMemo.getSlotManager().slotFromLocoAddress(3,self.sl)
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return
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#handle() is called repeated until it returns false.
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def handle(self):
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sleep(100.)
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return 1
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#end of class definition
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# create one of these
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a = ThrottleBridge()
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#set the name
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a.setName("Throttle Bridge")
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# adn start it running
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a.start()
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