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dmcc

changes from tonight's rehearsal:
changes from tonight's rehearsal:
- CueFader is closer to actually running the show, computes DMX levels
to send.
- KeyboardComposer is not a dummy. Use DMXDUMMY=1 to disable it.
- Submaster: subs can now be "temporary" -- i.e. they shouldn't be saved
or loaded. to save a temporary sub, make a copy of it with a proper name
since the computed name will be ugly.
Also, get_normalized_copy() and crossfade() methods added.
linear_fade helper (shouldn't be in Submaster, probably) added too.
- dmxchanedit: longer labels
- cuelist1 now has some bogus data in it and some crap removed
- dmxclient: now listens to the $DMXHOST and $DMXDUMMY env variables.
- patchdata: now up to date with this year's show
- danshow subs song{01..19}: removed. maybe we'll re-add them in an
archive directory.

""" module for clients to use for easy talking to the dmx
server. sending levels is now a simple call to
dmxclient.outputlevels(..)

client id is formed from sys.argv[0] and the PID.  """

import xmlrpclib,os,sys,socket,time
_dmx=None

_id="%s-%s" % (sys.argv[0].replace('.py','').replace('./',''),os.getpid())

def outputlevels(levellist):
    """present a list of dmx channel levels, each scaled from
    0..1. list can be any length- it will apply to the first len() dmx
    channels.

    if the server is not found, outputlevels will block for a
    second."""

    global _dmx,_id

    if _dmx is None:
        host = os.getenv('DMXHOST', 'localhost')
        _dmx=xmlrpclib.Server("http://%s:8030" % host)

    try:
        _dmx.outputlevels(_id,levellist)
    except socket.error,e:
        print "dmx server error %s, waiting"%e
        time.sleep(1)
    except xmlrpclib.Fault,e:
        print "outputlevels had xml fault: %s" % e
        time.sleep(1)
    
dummy = os.getenv('DMXDUMMY')
if dummy:
    print "dmxclient: DMX is in dummy mode."
    def bogus(*args):
        pass
    outputlevels = bogus