source: SHX/trunk/SeismicHandler/modules/traces.py @ 532

# -*- coding: utf-8 -*-
#
# Copyright (C) 2008-2011 Marcus Walther (walther@szgrf.bgr.de)
#
# This file is part of Seismic Handler eXtended (SHX)
# Full details can be found at project website http://www.seismic-handler.org/
#
# SHX is free software; you can redistribute it and/or modify
# it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# SHX is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with SHX (see license.txt); if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

from obspy.core.util import AttribDict
from SeismicHandler.basics import Singleton
from SeismicHandler.basics.messages import logMessage, msgs
from obspy.core.stream import Stream
from SeismicHandler.config import Settings


class Traces(object):
    """
    Supply access for two streams of traces. One is used for plotting, the other
    holds hidden traces. This will be enhanced later, but for compatibility
    reasons to existing command procedures it's done that way first.
    """
    __metaclass__ = Singleton

    traces = AttribDict()

    def __init__(self, *args, **kwargs):
        self.traces.visible = Stream()
        self.traces.hidden = Stream()

    def __getattr__(self, name):
        try:
            return self.__class__.__dict__["traces"][name]
        except:
            raise AttributeError(name)

    def addreplace(self, stream):
        """
        Adds or replaces visible streams depending on runtime setting.
        """
        # this is always a global switch!
        if not Settings.swKeeptraces:
            logMessage("debug.traces", "replacing visible traces")
            self.traces.visible.clear()

        self.traces.visible += stream
        self.updateCounter()

    def updateCounter(self):
        dsptrcs = len(self.traces.visible)
        hidtrcs = len(self.traces.hidden)
        logMessage("debug.traces", "Now %u visible and %u hidden traces" % (
                                                             dsptrcs, hidtrcs))

        msgs.sendMessage('runtime', name="dsptrcs", value=dsptrcs)
        msgs.sendMessage('runtime', name="tottrcs", value=dsptrcs+hidtrcs)


if __name__ == "__main__":
    pass