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c09ca11b UH |
1 | #!/usr/bin/python3 |
2 | ## | |
3 | ## This file is part of the sigrok-meter project. | |
4 | ## | |
5 | ## Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de> | |
6 | ## | |
7 | ## This program is free software; you can redistribute it and/or modify | |
8 | ## it under the terms of the GNU General Public License as published by | |
9 | ## the Free Software Foundation; either version 2 of the License, or | |
10 | ## (at your option) any later version. | |
11 | ## | |
12 | ## This program is distributed in the hope that it will be useful, | |
13 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ## GNU General Public License for more details. | |
16 | ## | |
17 | ## You should have received a copy of the GNU General Public License | |
18 | ## along with this program; if not, write to the Free Software | |
19 | ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | ## | |
21 | ||
13e332b7 UH |
22 | from multiprocessing import Process, Queue |
23 | from gi.repository import Gtk, GObject | |
97f3176e | 24 | from sigrok.core import * |
627e5230 | 25 | from sigrok.core import lowlevel as ll |
13e332b7 UH |
26 | |
27 | def init_and_run(queue): | |
28 | def datafeed_in(device, packet): | |
97f3176e | 29 | if packet.type is PacketType.ANALOG: |
13e332b7 UH |
30 | data = packet.payload.data |
31 | unit, unit_str = packet.payload.unit, "" | |
97f3176e | 32 | if unit is Unit.VOLT: |
13e332b7 | 33 | unit_str = " V" |
97f3176e | 34 | elif unit is Unit.OHM: |
13e332b7 | 35 | unit_str = " Ohm" |
627e5230 | 36 | elif unit is Unit.AMPERE: |
13e332b7 | 37 | unit_str = " A" |
49e0ee28 | 38 | mqflags, mqflags_str = packet.payload.mqflags, "" |
97f3176e | 39 | if QuantityFlag.AC in mqflags: |
13e332b7 | 40 | mqflags_str = " AC" |
97f3176e | 41 | elif QuantityFlag.DC in mqflags: |
13e332b7 UH |
42 | mqflags_str = " DC" |
43 | for i in range(packet.payload.num_samples): | |
49e0ee28 UH |
44 | dev = "%s" % device.vendor |
45 | val = "%f%s%s" % (data[i], unit_str, mqflags_str) | |
46 | queue.put((dev, val)) | |
13e332b7 | 47 | |
774c3953 | 48 | # log = Log() |
97f3176e | 49 | # log.level = LogLevel.SPEW |
13e332b7 | 50 | context = Context() |
49e0ee28 UH |
51 | drivers_to_use = ['voltcraft-vc820', 'victor-dmm'] |
52 | drivers = [context.drivers[d] for d in drivers_to_use] | |
53 | devices = [d.scan()[0] for d in drivers] | |
54 | for dev in devices: | |
55 | dev.limit_samples = 1000 | |
13e332b7 | 56 | session = Session(context) |
49e0ee28 UH |
57 | for dev in devices: |
58 | session.add_device(dev) | |
13e332b7 UH |
59 | session.add_callback(datafeed_in) |
60 | session.start() | |
61 | session.run() | |
62 | session.stop() | |
c09ca11b | 63 | |
730cbd1f UH |
64 | class SigrokMeter: |
65 | def __init__(self): | |
66 | self.builder = Gtk.Builder() | |
67 | self.builder.add_from_file("sigrok-meter.glade") | |
68 | self.builder.connect_signals(self) | |
13e332b7 | 69 | self.value_label = self.builder.get_object("value_label") |
49e0ee28 | 70 | self.value_label2 = self.builder.get_object("value_label2") |
fd029d02 | 71 | self.win = self.builder.get_object("mainwindow") |
730cbd1f | 72 | self.win.show_all() |
13e332b7 UH |
73 | self.queue = Queue() |
74 | GObject.timeout_add(100, self.update_label_if_needed) | |
75 | ||
76 | def update_label_if_needed(self): | |
77 | try: | |
78 | t = self.queue.get_nowait() | |
49e0ee28 UH |
79 | l = self.value_label if t[0] != "Victor" else self.value_label2 |
80 | l.set_text("%s: %s" % (t[0], t[1])) | |
13e332b7 UH |
81 | except: |
82 | pass | |
83 | GObject.timeout_add(100, self.update_label_if_needed) | |
730cbd1f | 84 | |
fd029d02 | 85 | def on_quit(self, *args): |
2f5ef701 | 86 | Gtk.main_quit(*args) |
730cbd1f | 87 | |
fd029d02 | 88 | def on_about(self, action): |
730cbd1f | 89 | about = self.builder.get_object("aboutdialog") |
13e332b7 UH |
90 | sr_pkg = ll.sr_package_version_string_get() |
91 | sr_lib = ll.sr_lib_version_string_get() | |
a683a5e2 UH |
92 | s = "Using libsigrok %s (lib version %s)." % (sr_pkg, sr_lib) |
93 | about.set_comments(s) | |
dd73092b UH |
94 | about.run() |
95 | about.hide() | |
2f5ef701 | 96 | |
730cbd1f | 97 | if __name__ == '__main__': |
9e7bd3d2 UH |
98 | s = SigrokMeter() |
99 | process = Process(target=init_and_run, args=(s.queue,)) | |
100 | process.start() | |
101 | Gtk.main() | |
102 | process.terminate() | |
c09ca11b | 103 |