plugins/55_gpx_trace.py

   1 # gpx_trace - zavai GPX trace functions
   2 #
   3 # Copyright (C) 2009  Enrico Zini <enrico@enricozini.org>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18
  19 from gettext import gettext as _
  20 import gtk
  21 import zavai
  22
  23 class GPXTracer(gtk.ToggleAction):
  24     states = [_("Start GPX trace"), _("Stop GPX trace")]
  25
  26     def __init__(self, registry, **kw):
  27         self.state = 0
  28         super(GPXTracer, self).__init__("menu.main.gps.gpx", self.states[self.state], None, None)
  29
  30         self.registry = registry
  31         self.set_active(False)
  32
  33         self.connect("toggled", self.on_toggle)
  34
  35     def on_toggle(self, *args):
  36         self.state = (self.state + 1) % len(self.states)
  37         self.set_property("label", self.states[self.state])
  38         if self.get_active():
  39             self.start()
  40         else:
  41             self.stop()
  42
  43     def start(self):
  44         zavai.info("GPX trace started")
  45         self.registry.resource("gpx").connect("gpx", self)
  46
  47     def stop(self):
  48         zavai.info("GPX trace ended")
  49         self.registry.resource("gpx").disconnect("gpx", self)
  50
  51 class GPXWaypoint(gtk.Action):
  52     def __init__(self, registry, **kw):
  53         super(GPXWaypoint, self).__init__("menu.main.gps.waypoint", _("Take waypoint"), None, None)
  54         self.gpx = registry.resource("gpx")
  55         self.gpx.add_activity_monitor(self.on_gpx_activity_changed)
  56         self.connect("activate", self.on_activate)
  57
  58     def on_gpx_activity_changed(self, gpx, state):
  59         self.set_sensitive(state)
  60
  61     def on_activate(self, *args):
  62         self.gpx.waypoint()
  63
  64 class GPXAudioTracer(gtk.ToggleAction):
  65     states = [_("Start GPX and audio trace"), _("Stop GPX and audio trace")]
  66
  67     def __init__(self, registry, **kw):
  68         self.state = 0
  69         super(GPXAudioTracer, self).__init__("menu.main.gps.gpxaudio", self.states[self.state], None, None)
  70
  71         self.registry = registry
  72         self.recorder = zavai.Recorder(registry)
  73         self.set_active(False)
  74
  75         self.connect("toggled", self.on_toggle)
  76
  77     def shutdown(self):
  78         self.recorder.stop()
  79         super(GPXAudioTracer, self).shutdown()
  80
  81     def on_toggle(self, *args):
  82         self.state = (self.state + 1) % len(self.states)
  83         self.set_property("label", self.states[self.state])
  84         if self.get_active():
  85             self.start()
  86         else:
  87             self.stop()
  88
  89     def start(self):
  90         zavai.info("GPX trace started")
  91         gpx = self.registry.resource("gpx")
  92         gpx.connect("gpx", self)
  93         gpx.add_activity_monitor(self.on_gpx_activity_changed)
  94
  95     def stop(self):
  96         zavai.info("GPX trace ended")
  97         gpx = self.registry.resource("gpx")
  98         gpx.disconnect("gpx", self)
  99         self.recorder.stop()
 100         gpx.del_activity_monitor(self.on_gpx_activity_changed)
 101
 102     def on_gpx_activity_changed(self, gpx, state):
 103         if state:
 104             self.recorder.start(gpx.basename + ".wav")
 105         else:
 106             self.recorder.stop()
 107
 108 def init(conf = None, registry = None, **kw):
 109     registry.register(GPXTracer(registry))
 110     registry.register(GPXAudioTracer(registry))
 111     registry.register(GPXWaypoint(registry))