beremiz

fix Traceback if search icon on library panel is clicked, when no

2016-04-22, Andrey Skvortsov
d917c209529d
fix Traceback if search icon on library panel is clicked, when no
category/item is selected in the library.

The problem is here, that if nothing is selected method GetSelection()
returns root item, that doesn't have any python data associated with it.
This issue seems to be wx3.0 specified, because it doesn't exist
with wx2.8 on Windows.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#Copyright (C) 2011: Edouard TISSERANT and Laurent BESSARD
#
#See COPYING file for copyrights details.
#
#This library is free software; you can redistribute it and/or
#modify it under the terms of the GNU General Public
#License as published by the Free Software Foundation; either
#version 2.1 of the License, or (at your option) any later version.
#
#This library is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
#General Public License for more details.
#
#You should have received a copy of the GNU General Public
#License along with this library; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import ctypes
ctypes.pythonapi.PyString_AsString.argtypes = (ctypes.c_void_p,)
ctypes.pythonapi.PyString_AsString.restype = ctypes.POINTER(ctypes.c_char)
from ctypes import *
from datetime import timedelta as td
class IEC_STRING(Structure):
"""
Must be changed according to changes in iec_types.h
"""
_fields_ = [("len", c_uint8),
("body", c_char * 126)]
class IEC_TIME(Structure):
"""
Must be changed according to changes in iec_types.h
"""
_fields_ = [("s", c_long), #tv_sec
("ns", c_long)] #tv_nsec
def _t(t, u=lambda x:x.value, p=lambda t,x:t(x)): return (t, u, p)
def _ttime(): return (IEC_TIME,
lambda x:td(0, x.s, x.ns/1000),
lambda t,x:t(x.days * 24 * 3600 + x.seconds, x.microseconds*1000))
SameEndianessTypeTranslator = {
"BOOL" : _t(c_uint8, lambda x:x.value!=0),
"STEP" : _t(c_uint8),
"TRANSITION" : _t(c_uint8),
"ACTION" : _t(c_uint8),
"SINT" : _t(c_int8),
"USINT" : _t(c_uint8),
"BYTE" : _t(c_uint8),
"STRING" : (IEC_STRING,
lambda x:x.body[:x.len],
lambda t,x:t(len(x),x)),
"INT" : _t(c_int16),
"UINT" : _t(c_uint16),
"WORD" : _t(c_uint16),
"DINT" : _t(c_int32),
"UDINT" : _t(c_uint32),
"DWORD" : _t(c_uint32),
"LINT" : _t(c_int64),
"ULINT" : _t(c_uint64),
"LWORD" : _t(c_uint64),
"REAL" : _t(c_float),
"LREAL" : _t(c_double),
"TIME" : _ttime(),
"TOD" : _ttime(),
"DATE" : _ttime(),
"DT" : _ttime(),
}
SwapedEndianessTypeTranslator = {
#TODO
}
TypeTranslator=SameEndianessTypeTranslator
# Construct debugger natively supported types
DebugTypesSize = dict([(key,sizeof(t)) for key,(t,p,u) in SameEndianessTypeTranslator.iteritems() if t is not None])
def UnpackDebugBuffer(buff, indexes):
res = []
buffoffset = 0
buffsize = len(buff)
buffptr = cast(ctypes.pythonapi.PyString_AsString(id(buff)),c_void_p).value
for iectype in indexes:
c_type,unpack_func, pack_func = \
TypeTranslator.get(iectype,
(None,None,None))
if c_type is not None and buffoffset < buffsize:
cursor = c_void_p( buffptr + buffoffset)
value = unpack_func( cast(cursor,
POINTER(c_type)).contents)
buffoffset += sizeof(c_type) if iectype != "STRING" else len(value)+1
res.append(value)
else:
break
if buffoffset and buffoffset == buffsize:
return res
return None
LogLevels = ["CRITICAL","WARNING","INFO","DEBUG"]
LogLevelsCount = len(LogLevels)
LogLevelsDict = dict(zip(LogLevels,range(LogLevelsCount)))
LogLevelsDefault = LogLevelsDict["DEBUG"]