beremiz

Altered DropDown widget (#60)

13 months ago, Dino Kosic
dde2bbf2c43a
Altered DropDown widget (#60)

* Altered DropDown widget: Added another mandatory path variable - selection value (depending on use case, one could prefer direct access to selection value rather than selection index); and another optional path variable - options (string variable to allow for dynamic change of options, as opposed to providing static list of options through arguments); and example with both static and dynamic dropdowns.

* Make second path variable optional, for backwards compatibility
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# See COPYING file for copyrights details.
import hashlib
from runtime import PlcStatus
class ConnectorBase(object):
chuncksize = 0xfff # 4KB
PLCObjDefaults = {
"StartPLC": False,
"GetTraceVariables": (PlcStatus.Broken, None),
"GetPLCstatus": (PlcStatus.Broken, None),
"RemoteExec": (-1, "RemoteExec script failed!"),
"GetVersions": "*** Unknown ***"
}
def BlobFromFile(self, filepath, seed):
s = hashlib.new('md5')
s.update(seed.encode())
blobID = self.SeedBlob(seed.encode())
with open(filepath, "rb") as f:
while blobID == s.digest():
chunk = f.read(self.chuncksize)
if len(chunk) == 0:
return blobID
blobID = self.AppendChunkToBlob(chunk, blobID)
s.update(chunk)
raise IOError("Data corrupted during transfer or connection lost")