## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
-from gi.repository import Gtk
+from multiprocessing import Process, Queue
+from gi.repository import Gtk, GObject
+from sigrok.core import *
-# Handler class for various GTK+ signals.
-class Handler:
- def onDeleteWindow(self, *args):
+def init_and_run(queue):
+ def datafeed_in(device, packet):
+ if packet.type is PacketType.ANALOG:
+ data = packet.payload.data
+ unit, unit_str = packet.payload.unit, ""
+ if unit is Unit.VOLT:
+ unit_str = " V"
+ elif unit is Unit.OHM:
+ unit_str = " Ohm"
+ elif unit is unit.AMPERE:
+ unit_str = " A"
+ mqflags, mqflags_str = packet.payload.mqflags, ""
+ if QuantityFlag.AC in mqflags:
+ mqflags_str = " AC"
+ elif QuantityFlag.DC in mqflags:
+ mqflags_str = " DC"
+ for i in range(packet.payload.num_samples):
+ dev = "%s" % device.vendor
+ val = "%f%s%s" % (data[i], unit_str, mqflags_str)
+ queue.put((dev, val))
+
+ # log = Log()
+ # log.level = LogLevel.SPEW
+ context = Context()
+ drivers_to_use = ['voltcraft-vc820', 'victor-dmm']
+ drivers = [context.drivers[d] for d in drivers_to_use]
+ devices = [d.scan()[0] for d in drivers]
+ for dev in devices:
+ dev.limit_samples = 1000
+ session = Session(context)
+ for dev in devices:
+ session.add_device(dev)
+ session.add_callback(datafeed_in)
+ session.start()
+ session.run()
+ session.stop()
+
+class SigrokMeter:
+ def __init__(self):
+ self.builder = Gtk.Builder()
+ self.builder.add_from_file("sigrok-meter.glade")
+ self.builder.connect_signals(self)
+ self.value_label = self.builder.get_object("value_label")
+ self.value_label2 = self.builder.get_object("value_label2")
+ self.win = self.builder.get_object("mainwindow")
+ self.win.show_all()
+ self.queue = Queue()
+ GObject.timeout_add(100, self.update_label_if_needed)
+
+ def update_label_if_needed(self):
+ try:
+ t = self.queue.get_nowait()
+ l = self.value_label if t[0] != "Victor" else self.value_label2
+ l.set_text("%s: %s" % (t[0], t[1]))
+ except:
+ pass
+ GObject.timeout_add(100, self.update_label_if_needed)
+
+ def on_quit(self, *args):
Gtk.main_quit(*args)
- def on_imagemenuitemAbout_activate(self, *args):
- about = builder.get_object("aboutdialog")
+
+ def on_about(self, action):
+ about = self.builder.get_object("aboutdialog")
+ sr_pkg = ll.sr_package_version_string_get()
+ sr_lib = ll.sr_lib_version_string_get()
+ s = "Using libsigrok %s (lib version %s)." % (sr_pkg, sr_lib)
+ about.set_comments(s)
about.run()
about.hide()
-builder = Gtk.Builder()
-builder.add_from_file("sigrok-meter.glade")
-builder.connect_signals(Handler())
-win = builder.get_object("main-window")
-win.show_all()
-Gtk.main()
+if __name__ == '__main__':
+ s = SigrokMeter()
+ process = Process(target=init_and_run, args=(s.queue,))
+ process.start()
+ Gtk.main()
+ process.terminate()