# -*- coding:utf8 -*-
'''
Created on 2015-10-30
@author: javacardos@gmail.com
@organization: https://www.javacardos.com/
@copyright: JavaCardOS Technologies. All rights reserved.
'''
IDOK = 1
IDCANCEL = 2
class Util(object):
'''
Util functions;
'''
HEXCHARS = '0123456789ABCDEFabcdef'
@staticmethod
def removespace(s):
s = s.replace(' ', '')
s = s.replace('\t', '')
s = s.replace('\r', '')
s = s.replace('\n', '')
return s
@staticmethod
def c2v(c):
"""Get value of one char; Argument c is the input char;"""
cv = ord(c)
if ((cv >= ord('0')) and (cv <= ord('9'))):
return cv - ord('0')
elif ((cv >= ord('A')) and (cv <= ord('F'))):
return cv - ord('A') + 10
elif ((cv >= ord('a')) and (cv <= ord('f'))):
return cv - ord('a') + 10
else:
raise ValueError
@staticmethod
def s2vl(s):
"""Convert string to value list; Argument s is the input string; ("00A4040000" => {0x00, 0xA4, 0x04, 0x00, 0x00})"""
s = Util.removespace(s)
if (len(s) & 1) != 0:
raise ValueError()
for c in s:
if c not in Util.HEXCHARS:
raise ValueError()
vl = []
for i in xrange(0, len(s) / 2):
vl.append(Util.c2v(s[i * 2]) << 4 | Util.c2v(s[i * 2 + 1]))
return vl
@staticmethod
def s2vs(s):
s = Util.removespace(s)
if (len(s) & 1) != 0:
raise ValueError()
for c in s:
if c not in Util.HEXCHARS:
raise ValueError()
vs = ''
for i in xrange(0, len(s) / 2):
vs += chr(Util.c2v(s[i * 2]) << 4 | Util.c2v(s[i * 2 + 1]))
return vs
@staticmethod
def vl2s(vl, pad=''):
"""Convert value list to string; ({0x00, 0xA4, 0x04, 0x00, 0x00} => "00A4040000")"""
return pad.join("%02X" %(v) for v in vl)
@staticmethod
def vs2s(vs, pad=''):
"""Convert value list to string; ('\x00\xA4\x04\x00\x00' => "00A4040000")"""
return pad.join("%02X" %(ord(v)) for v in vs)
@staticmethod
def getTimeStr(tv):
"""Get time string to display; tv is the time value;"""
if tv < 0:
timeStr = '< 0'
elif tv < 0.000001:
timeStr = '%3.3fns' %(tv * (10 ** 9))
elif tv < 0.001:
timeStr = '%3.3fus' %(tv * (10 ** 6))
elif tv < 1.0:
timeStr = '%3.3fms' %(tv * (10 ** 3))
else:
timeStr = '%3.3fs' %(tv * (10 ** 0))
return timeStr
@staticmethod
def isprint_keycode(kc): return kc >= 32 and kc <= 126
@staticmethod
def isprint_char(c): return ord(c) >= 32 and ord(c) <= 126
@staticmethod
def ishexchar_kc(kc):
isHexChar = False
if Util.isprint_keycode(kc):
if kc >= ord('0') and kc <= ord('9'):
isHexChar = True
elif kc >= ord('a') and kc <= ord('f'):
isHexChar = True
elif kc >= ord('A') and kc <= ord('F'):
isHexChar = True
else:
isHexChar = True
return isHexChar
@staticmethod
def ishexchar_c(c):
isHexChar = False
if Util.isprint_char(c):
if c >= '0' and c <= '9':
isHexChar = True
elif c >= 'a' and c <= 'f':
isHexChar = True
elif c >= 'A' and c <= 'F':
isHexChar = True
return isHexChar
@staticmethod
def isnumchar_kc(kc):
isNumChar = False
if Util.isprint_keycode(kc):
if kc >= ord('0') and kc <= ord('9'):
isNumChar = True
else:
isNumChar = True
return isNumChar
@staticmethod
def isnumchar_c(c):
isNumChar = False
if Util.isprint_char(c):
if c >= '0' and c <= '9':
isNumChar = True
else:
isNumChar = True
return isNumChar
@staticmethod
def ishexstr(s):
s = Util.removespace(s)
ishexstr = True
for c in s:
if not Util.ishexchar_c(c):
ishexstr = False
break
return ishexstr
@staticmethod
def bytes3_to_byte_array(value):
return [(value & 0xff), (value >> 8) & 0xff, (value >> 16) & 0xff ]
@staticmethod
def byte_array3_to_dword(byte_array):
return byte_array[0] | (byte_array[1] << 8) | (byte_array[2] << 16)
@staticmethod
def byte_array4_to_dword(byte_array):
return byte_array[0] | (byte_array[1] << 8) | (byte_array[2] << 16) | (byte_array[3] << 24)
@staticmethod
def calculate_crc(data, size, reg):
for octet in data[:size]:
for pos in range(8):
bit = (reg ^ ((octet >> pos) & 1)) & 1
reg = reg >> 1
if bit:
reg = reg ^ 0x8408
return reg
import wx
class HexValidator(wx.PyValidator):
"""Validate Hex strings"""
def __init__(self):
"""Initialize the validator
"""
super(HexValidator, self).__init__()
# Event Handlers
self.Bind(wx.EVT_CHAR, self.OnChar)
def Clone(self):
"""Clones the current validator
@return: clone of this object
"""
return HexValidator()
# def Validate(self, win):
# """Validate an window value
# @param win: window to validate
#
# """
# for char in val:
# if char not in Util.HEXCHARS:
# return False
# else:
# return True
def OnChar(self, event):
"""Process values as they are entered into the control
@param event: event that called this handler
"""
key = event.GetKeyCode()
if event.CmdDown() or key < wx.WXK_SPACE or key == wx.WXK_DELETE or \
key > 255 or chr(key) in Util.HEXCHARS:
event.Skip()
return
if not wx.Validator_IsSilent():
wx.Bell()
return
def TransferFromWindow(self, *args, **kwargs):
return True
def TransferToWindow(self, *args, **kwargs):
return True
