def __init__(self, prefix, desc):
if isinstance(desc, str):
desc = {'dev': desc}
else:
desc = desc._options
if 'dev' in desc:
dev = desc.pop('dev')
if 'name' not in desc:
desc['name'] = dev
dev, indices, _scale, _offset = extractKeyAndIndex(
dev, False, normalize=lambda s: s.lower())
if indices:
desc['item'] = indices
desc['key'] = prefix + dev + '/value'
desc['statuskey'] = prefix + dev + '/status'
desc['fixedkey'] = prefix + dev + '/fixed'
if 'unit' not in desc:
desc['unitkey'] = prefix + dev + '/unit'
if 'format' not in desc:
desc['formatkey'] = prefix + dev + '/fmtstr'
elif 'key' in desc:
key, indices, _scale, _offset = extractKeyAndIndex(
desc['key'], False)
if indices:
desc['item'] = indices
if 'name' not in desc:
desc['name'] = desc['key']
desc['key'] = prefix + key
for kn in ('statuskey', 'fixedkey', 'unitkey', 'formatkey'):
if kn in desc:
desc[kn] = (prefix + desc[kn]).lower().replace('.', '/')
self.__dict__.update(desc)
def registerKey(self, valuekey, statuskey='', unit='', fmtstr=''):
valuekey, valueindex, _scale, _offset = extractKeyAndIndex(
valuekey, False)
self.devinfo[valuekey] = self._newDevinfo(valueindex, unit, fmtstr,
False)
self._devmap[self._source.register(self, valuekey)] = valuekey
if statuskey:
self._devmap[self._source.register(self, statuskey)] = valuekey
def registerKeys(self):
for key, name in zip_longest(self.props['devices'],
self.props['names']):
if name is None:
name = key
key, index, scale, offset = extractKeyAndIndex(key)
keyid = self._source.register(self, key)
self.keyindices.setdefault(keyid, []).append(index)
self.addcurve(keyid, index, name, scale, offset)
def registerDevice(self, dev, unit='', fmtstr=''):
dev, valueindex, _scale, _offset = extractKeyAndIndex(
dev, False, normalize=lambda s: s.lower())
self.devinfo[dev] = self._newDevinfo(valueindex, unit, fmtstr, True)
self._devmap[self._source.register(self, dev + '/value')] = dev
self._devmap[self._source.register(self, dev + '/status')] = dev
self._devmap[self._source.register(self, dev + '/fixed')] = dev
if not unit:
self._devmap[self._source.register(self, dev + '/unit')] = dev
if not fmtstr:
self._devmap[self._source.register(self, dev + '/fmtstr')] = dev
def _syncDeviceTree(self):
# restore selection from entries in textbox
if not self.devices.text():
return
tree = self.deviceTree
tree.itemChanged.disconnect(self.on_deviceTree_itemChanged)
keys_indices = [
extractKeyAndIndex(d.strip())
for d in self.devices.text().split(',')
]
for key, indices, scale, offset in keys_indices:
dev, _, param = key.partition('/')
for i in range(tree.topLevelItemCount()):
if tree.topLevelItem(i).text(0).lower() == dev:
devitem = tree.topLevelItem(i)
break
else:
continue
if param == 'value':
item = devitem
newkey = devitem.text(0)
else:
if not devitem.childCount():
tree.on_itemExpanded(devitem)
for i in range(devitem.childCount()):
if devitem.child(i).text(0).lower() == param:
item = devitem.child(i)
item.parent().setExpanded(True)
break
else:
continue
newkey = devitem.text(0) + '.' + item.text(0)
suffix = ''.join('[%s]' % i for i in indices)
if scale != 1:
suffix += '*%.4g' % scale
if offset != 0:
suffix += '%+.4g' % offset
item.setCheckState(0, Qt.Checked)
item.setText(1, ','.join(map(str, indices)))
item.setText(2, '%.4g' % scale)
item.setText(3, '%.4g' % offset)
self.deviceTreeSel[newkey] = suffix
tree.itemChanged.connect(self.on_deviceTree_itemChanged)
def _createViewFromDialog(self, info, row=None):
if not info['devices'].strip():
return
keys_indices = [
extractKeyAndIndex(d.strip()) for d in info['devices'].split(',')
]
if self.client is not None:
meta = self._getMetainfo(keys_indices)
else:
meta = ({}, {})
name = info['name']
if not name:
name = info['devices']
if info['simpleTime']:
name += ' (%s)' % info['simpleTimeSpec']
window = None
if info['simpleTime']:
try:
itime, _ = get_time_and_interval(info['simpleTimeSpec'])
except ValueError:
return
fromtime = currenttime() - itime
totime = None
if info['slidingWindow']:
window = itime
else:
if info['frombox']:
fromtime = mktime(localtime(info['fromdate']))
else:
fromtime = None
if info['tobox']:
totime = mktime(localtime(info['todate']))
else:
totime = None
try:
interval = float(info['interval'])
except ValueError:
interval = 5.0
if info['customY']:
try:
yfrom = float(info['customYFrom'])
except ValueError:
return
try:
yto = float(info['customYTo'])
except ValueError:
return
else:
yfrom = yto = None
view = View(self, name, keys_indices, interval, fromtime, totime,
yfrom, yto, window, meta, info, self.gethistory_callback)
self.views.append(view)
view.listitem = QListWidgetItem(view.name)
if row is not None:
self.viewList.insertItem(row, view.listitem)
else:
self.viewList.addItem(view.listitem)
self.openView(view)
if view.totime is None:
for key in view.uniq_keys:
self.keyviews.setdefault(key, []).append(view)
return view
def test_extract_key_and_index():
assert extractKeyAndIndex('dev') == ('dev/value', (), 1, 0)
assert extractKeyAndIndex('dev.key') == ('dev/key', (), 1, 0)
assert extractKeyAndIndex('dev.key[0]') == ('dev/key', (0, ), 1, 0)
assert extractKeyAndIndex('dev.key[0][1]') == ('dev/key', (0, 1), 1, 0)
assert extractKeyAndIndex('dev[0][1]') == ('dev/value', (0, 1), 1, 0)
assert extractKeyAndIndex('dev[0,1]') == ('dev[0,1]', (), 1, 0)
assert extractKeyAndIndex('dev.key[0][ 1]') == ('dev/key', (0, 1), 1, 0)
assert extractKeyAndIndex('dev.key[ 0][ 1]') == ('dev/key', (0, 1), 1, 0)
assert extractKeyAndIndex('dev.key[ 0 ][ 1]') == ('dev/key', (0, 1), 1, 0)
assert extractKeyAndIndex('dev.key[ 0 ][ 1 ]') == ('dev/key', (0, 1), 1, 0)
assert extractKeyAndIndex('dev.key[10 ][ 1]') == ('dev/key', (10, 1), 1, 0)
assert extractKeyAndIndex('dev.key[0') == ('dev/key[0', (), 1, 0)
assert extractKeyAndIndex('dev.key0]') == ('dev/key0]', (), 1, 0)
assert extractKeyAndIndex('dev.key*10') == ('dev/key', (), 10, 0)
assert extractKeyAndIndex('dev.key*-10') == ('dev/key', (), -10, 0)
assert extractKeyAndIndex('dev.key * -1') == ('dev/key', (), -1, 0)
assert extractKeyAndIndex('dev.key +5') == ('dev/key', (), 1, 5)
assert extractKeyAndIndex('dev.key- 5') == ('dev/key', (), 1, -5)
assert extractKeyAndIndex('dev.key*10 -5') == ('dev/key', (), 10, -5)
assert extractKeyAndIndex('dev.key[0] * 10+5') == ('dev/key', (0, ), 10, 5)
assert extractKeyAndIndex('dev*1.2e1 +5e-2') == ('dev/value', (), 12, 0.05)
assert extractKeyAndIndex('dev*1e+1+5e1') == ('dev/value', (), 10, 50)
