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1 # -*- coding: utf-8 -*- |
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2 |
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3 #This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor |
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4 #based on the plcopen standard. |
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5 # |
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6 #Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD |
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7 # |
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8 #See COPYING file for copyrights details. |
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9 # |
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10 #This library is free software; you can redistribute it and/or |
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11 #modify it under the terms of the GNU General Public |
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12 #License as published by the Free Software Foundation; either |
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13 #version 2.1 of the License, or (at your option) any later version. |
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14 # |
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15 #This library is distributed in the hope that it will be useful, |
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16 #but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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18 #General Public License for more details. |
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19 # |
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20 #You should have received a copy of the GNU General Public |
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21 #License along with this library; if not, write to the Free Software |
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22 #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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23 |
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24 import re |
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25 import datetime |
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26 |
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27 import wx |
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28 |
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29 #------------------------------------------------------------------------------- |
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30 # Helpers |
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31 #------------------------------------------------------------------------------- |
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32 |
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33 LOCATIONDATATYPES = {"X" : ["BOOL"], |
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34 "B" : ["SINT", "USINT", "BYTE", "STRING"], |
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35 "W" : ["INT", "UINT", "WORD", "WSTRING"], |
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36 "D" : ["DINT", "UDINT", "REAL", "DWORD"], |
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37 "L" : ["LINT", "ULINT", "LREAL", "LWORD"]} |
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38 |
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39 def gen_get_function(f): |
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40 def get_function(v): |
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41 try: |
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42 return f(v) |
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43 except: |
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44 return None |
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45 return get_function |
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46 |
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47 def gen_get_string(delimiter): |
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48 STRING_MODEL = re.compile("%(delimiter)s([^%(delimiter)s]*)%(delimiter)s$" % {"delimiter": delimiter}) |
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49 def get_string(v): |
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50 result = STRING_MODEL.match(v) |
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51 if result is not None: |
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52 return result.group(1) |
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53 return None |
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54 return get_string |
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55 |
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56 getinteger = gen_get_function(int) |
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57 getfloat = gen_get_function(float) |
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58 getstring = gen_get_string("'") |
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59 getwstring = gen_get_string('"') |
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60 |
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61 SECOND = 1000000 |
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62 MINUTE = 60 * SECOND |
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63 HOUR = 60 * MINUTE |
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64 DAY = 24 * HOUR |
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65 |
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66 IEC_TIME_MODEL = re.compile("(?:(?:T|TIME)#)?(-)?(?:(%(float)s)D_?)?(?:(%(float)s)H_?)?(?:(%(float)s)M(?!S)_?)?(?:(%(float)s)S_?)?(?:(%(float)s)MS)?$" % {"float": "[0-9]+(?:\.[0-9]+)?"}) |
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67 IEC_DATE_MODEL = re.compile("(?:(?:D|DATE)#)?([0-9]{4})-([0-9]{2})-([0-9]{2})$") |
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68 IEC_DATETIME_MODEL = re.compile("(?:(?:DT|DATE_AND_TIME)#)?([0-9]{4})-([0-9]{2})-([0-9]{2})-([0-9]{2}):([0-9]{2}):([0-9]{2}(?:\.[0-9]+)?)$") |
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69 IEC_TIMEOFDAY_MODEL = re.compile("(?:(?:TOD|TIME_OF_DAY)#)?([0-9]{2}):([0-9]{2}):([0-9]{2}(?:\.[0-9]+)?)$") |
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70 |
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71 def gettime(v): |
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72 result = IEC_TIME_MODEL.match(v.upper()) |
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73 if result is not None: |
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74 negative, days, hours, minutes, seconds, milliseconds = result.groups() |
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75 microseconds = 0 |
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76 not_null = False |
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77 for value, factor in [(days, DAY), |
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78 (hours, HOUR), |
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79 (minutes, MINUTE), |
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80 (seconds, SECOND), |
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81 (milliseconds, 1000)]: |
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82 if value is not None: |
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83 microseconds += float(value) * factor |
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84 not_null = True |
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85 if not not_null: |
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86 return None |
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87 if negative is not None: |
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88 microseconds = -microseconds |
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89 return datetime.timedelta(microseconds=microseconds) |
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90 |
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91 else: |
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92 return None |
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93 |
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94 def getdate(v): |
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95 result = IEC_DATE_MODEL.match(v.upper()) |
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96 if result is not None: |
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97 year, month, day = result.groups() |
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98 try: |
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99 date = datetime.datetime(int(year), int(month), int(day)) |
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100 except ValueError, e: |
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101 return None |
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102 base_date = datetime.datetime(1970, 1, 1) |
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103 return date - base_date |
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104 else: |
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105 return None |
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106 |
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107 def getdatetime(v): |
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108 result = IEC_DATETIME_MODEL.match(v.upper()) |
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109 if result is not None: |
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110 year, month, day, hours, minutes, seconds = result.groups() |
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111 try: |
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112 date = datetime.datetime(int(year), int(month), int(day), int(hours), int(minutes), int(float(seconds)), int((float(seconds) * SECOND) % SECOND)) |
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113 except ValueError, e: |
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114 return None |
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115 base_date = datetime.datetime(1970, 1, 1) |
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116 return date - base_date |
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117 else: |
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118 return None |
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119 |
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120 def gettimeofday(v): |
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121 result = IEC_TIMEOFDAY_MODEL.match(v.upper()) |
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122 if result is not None: |
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123 hours, minutes, seconds = result.groups() |
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124 microseconds = 0 |
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125 for value, factor in [(hours, HOUR), |
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126 (minutes, MINUTE), |
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127 (seconds, SECOND)]: |
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128 microseconds += float(value) * factor |
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129 return datetime.timedelta(microseconds=microseconds) |
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130 else: |
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131 return None |
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132 |
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133 GetTypeValue = {"BOOL": lambda x: {"TRUE": True, "FALSE": False, "0": False, "1": True}.get(x.upper(), None), |
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134 "SINT": getinteger, |
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135 "INT": getinteger, |
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136 "DINT": getinteger, |
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137 "LINT": getinteger, |
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138 "USINT": getinteger, |
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139 "UINT": getinteger, |
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140 "UDINT": getinteger, |
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141 "ULINT": getinteger, |
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142 "BYTE": getinteger, |
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143 "WORD": getinteger, |
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144 "DWORD": getinteger, |
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145 "LWORD": getinteger, |
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146 "REAL": getfloat, |
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147 "LREAL": getfloat, |
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148 "STRING": getstring, |
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149 "WSTRING": getwstring, |
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150 "TIME": gettime, |
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151 "DATE": getdate, |
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152 "DT": getdatetime, |
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153 "TOD": gettimeofday} |
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154 |
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155 #------------------------------------------------------------------------------- |
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156 # Force Variable Dialog |
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157 #------------------------------------------------------------------------------- |
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158 |
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159 class ForceVariableDialog(wx.TextEntryDialog): |
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160 |
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161 def __init__(self, parent, iec_type, defaultValue=""): |
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162 wx.TextEntryDialog.__init__(self, parent, message = _("Forcing Variable Value"), |
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163 caption = _("Please enter value for a \"%s\" variable:") % iec_type, defaultValue = defaultValue, |
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164 style = wx.OK|wx.CANCEL|wx.CENTRE, pos = wx.DefaultPosition) |
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165 |
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166 self.IEC_Type = iec_type |
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167 |
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168 self.Bind(wx.EVT_BUTTON, self.OnOK, |
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169 self.GetSizer().GetItem(2).GetSizer().GetItem(1).GetSizer().GetAffirmativeButton()) |
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170 |
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171 def OnOK(self, event): |
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172 message = None |
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173 value = self.GetSizer().GetItem(1).GetWindow().GetValue() |
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174 if value == "": |
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175 message = _("You must type a value!") |
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176 elif GetTypeValue[self.IEC_Type](value) is None: |
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177 message = _("Invalid value \"%s\" for \"%s\" variable!") % (value, self.IEC_Type) |
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178 if message is not None: |
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179 dialog = wx.MessageDialog(self, message, _("Error"), wx.OK|wx.ICON_ERROR) |
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180 dialog.ShowModal() |
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181 dialog.Destroy() |
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182 else: |
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183 self.EndModal(wx.ID_OK) |
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184 event.Skip() |
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185 |
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186 def GetValue(self): |
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187 return GetTypeValue[self.IEC_Type](wx.TextEntryDialog.GetValue(self)) |