lib/python/Components/config.py

   1 class configFile:
   2         def __init__(self):
   3                 self.changed = 0
   4                 self.configElements = { }
   5                 try:
   6                         self.file = open("config")
   7                 except IOError:
   8                         print "cannot open config file"
   9                         return
  10
  11                 while 1:
  12                         line = self.file.readline()
  13                         if line == "":
  14                                 break
  15
  16                         if line.startswith("#"):                #skip comments
  17                                 continue
  18
  19                         self.addElement(line)
  20                 self.file.close()
  21
  22         def addElement(self, line):
  23                 x = line.find("=")
  24                 if x > -1:
  25                         self.configElements[line[:x]] = line[x + 1:]
  26
  27         def getKey(self, key):
  28                 return self.configElements[key]
  29
  30         def setKey(self, key, value):
  31                 self.changed = 1
  32                 self.configElements[key] = value
  33
  34         def save(self):
  35                 if self.changed == 0:           #no changes, so no write to disk needed
  36                         return
  37
  38                 fileHandle = open("config", "w")
  39
  40                 keys = self.configElements.keys()
  41                 keys.sort()
  42                 for x in keys:
  43                         wstr = x + "=" + self.configElements[x]
  44
  45                         if wstr[len(wstr) - 1] != '\n':
  46                                 wstr = wstr + "\n"
  47
  48                         fileHandle.write(wstr)
  49
  50                 fileHandle.close()
  51
  52 class configSelection:
  53         def __init__(self, parent):
  54                 self.parent = parent
  55
  56         def checkValues(self):
  57                 if self.parent.value < 0:
  58                         self.parent.value = 0
  59
  60                 if(self.parent.value >= (len(self.parent.vals) - 1)):
  61                         self.parent.value = len(self.parent.vals) - 1
  62
  63         def cancel(self):
  64                 self.parent.reload()
  65
  66         def save(self):
  67                 self.parent.save()
  68
  69         def handleKey(self, key):
  70                 if key == config.key["prevElement"]:
  71                         self.parent.value = self.parent.value - 1
  72                 if key == config.key["nextElement"]:
  73                         self.parent.value = self.parent.value + 1
  74
  75                 self.checkValues()
  76
  77                 self.parent.change()
  78
  79         def __call__(self, selected):                   #needed by configlist
  80                 self.checkValues()
  81                 return ("text", self.parent.vals[self.parent.value])
  82
  83 class configSatlist:
  84         def __init__(self, parent):
  85                 self.parent = parent
  86
  87         def checkValues(self):
  88                 if self.parent.value < 0:
  89                         self.parent.value = 0
  90
  91                 if(self.parent.value >= (len(self.parent.vals) - 1)):
  92                         self.parent.value = len(self.parent.vals) - 1
  93
  94         def cancel(self):
  95                 self.parent.reload()
  96
  97         def save(self):
  98                 self.parent.save()
  99
 100         def handleKey(self, key):
 101                 if key == config.key["prevElement"]:
 102                         self.parent.value = self.parent.value - 1
 103                 if key == config.key["nextElement"]:
 104                         self.parent.value = self.parent.value + 1
 105
 106                 self.checkValues()
 107
 108                 self.parent.change()
 109
 110         def __call__(self, selected):                   #needed by configlist
 111                 self.checkValues()
 112                 #fixme
 113                 return ("text", str(self.parent.vals[self.parent.value][0]))
 114
 115 class configSequenceArg:
 116         def get(self, type, args = ()):
 117                 # configsequencearg.get ("IP")
 118                 if (type == "IP"):
 119                         return (("."), [(1,255),(1,255),(1,255),(1,255)])
 120                 # configsequencearg.get ("MAC")
 121                 if (type == "MAC"):
 122                         return ((":"), [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)])
 123                 # configsequencearg.get("INTEGER", (min, max)) => x with min <= x <= max
 124                 if (type == "INTEGER"):
 125                         return ((":"), [args])
 126                 # configsequencearg.get("FLOAT", [(min,max),(min1,max1)]) => x.y with min <= x <= max and min1 <= y <= max1
 127                 if (type == "FLOAT"):
 128                         return (("."), args)
 129
 130 configsequencearg = configSequenceArg()
 131
 132 class configSequence:
 133         def __init__(self, parent):
 134                 self.parent = parent
 135                 self.markedPos = 0
 136                 self.seperator = self.parent.vals[0]
 137                 self.valueBounds = self.parent.vals[1]
 138
 139         def checkValues(self):
 140                 maxPos = len(self.parent.value) * len(self.valueBounds) + len(self.parent.value)
 141
 142                 if self.markedPos >= maxPos:
 143                         self.markedPos = maxPos - 1
 144                 if self.markedPos < 0:
 145                         self.markedPos = 0
 146
 147         def cancel(self):
 148                 self.parent.reload()
 149
 150         def save(self):
 151                 self.parent.save()
 152
 153         def handleKey(self, key):
 154                 #this will no change anything on the value itself
 155                 #so we can handle it here in gui element
 156                 if key == config.key["prevElement"]:
 157                         self.markedPos -= 1
 158                 if key == config.key["nextElement"]:
 159                         self.markedPos += 1
 160
 161                 if key >= config.key["0"] and key <= config.key["9"]:
 162                         number = 9 - config.key["9"] + key
 163                         # length of numberblock
 164                         numberLen = len(str(self.valueBounds[0][1]))
 165                         # position in the block
 166                         posinblock = self.markedPos % numberLen
 167                         # blocknumber
 168                         blocknumber = self.markedPos / numberLen
 169
 170                         oldvalue = self.parent.value[blocknumber]
 171                         olddec = oldvalue % 10 ** (numberLen - posinblock) - (oldvalue % 10 ** (numberLen - posinblock - 1))
 172                         newvalue = oldvalue - olddec + (10 ** (numberLen - posinblock - 1) * number)
 173
 174                         print "You actually pressed a number (" + str(number) + ") which will be added at block number " + str(blocknumber) + " on position " + str(posinblock)
 175                         print "Old value: " + str(oldvalue) + " olddec: " + str(olddec) + " newvalue: " + str(newvalue)
 176                         self.parent.value[blocknumber] = newvalue
 177                         self.markedPos += 1
 178
 179                 self.checkValues()
 180
 181                 print "markPos:",
 182                 print self.markedPos
 183
 184                 #FIXME: dont call when press left/right
 185                 self.parent.change()
 186
 187         def __call__(self, selected):                   #needed by configlist
 188                 value = ""
 189                 mPos = self.markedPos
 190                 print "Positon: " + str(mPos)
 191                 for i in self.parent.value:
 192                         if len(value):  #fixme no heading separator possible
 193                                 value += self.seperator
 194                                 if mPos >= len(value) - 1:
 195                                         mPos += 1
 196
 197                         #diff =         self.valueBounds - len(str(i))
 198                         #if diff > 0:
 199                                 ## if this helps?!
 200                                 #value += " " * diff
 201                         print (("%0" + str(len(str(self.valueBounds[0][1]))) + "d") % i)
 202                         value += ("%0" + str(len(str(self.valueBounds[0][1]))) + "d") % i
 203
 204                         # only mark cursor when we are selected
 205                         # (this code is heavily ink optimized!)
 206                 return ("mtext"[1-selected:], value, [mPos])
 207
 208 class configValue:
 209         def __init__(self, obj):
 210                 self.obj = obj
 211
 212         def __str__(self):
 213                 return self.obj
 214
 215 class Config:
 216         def __init__(self):
 217                 self.key = { "choseElement": 0,
 218                                          "prevElement": 1,
 219                                          "nextElement": 2,
 220                                          "0": 10,
 221                                          "1": 11,
 222                                          "2": 12,
 223                                          "3": 13,
 224                                          "4": 14,
 225                                          "5": 15,
 226                                          "6": 16,
 227                                          "7": 17,
 228                                          "8": 18,
 229                                          "9": 19 }
 230
 231 config = Config();
 232 configfile = configFile()
 233
 234 class ConfigSlider:
 235         def __init__(self, parent):
 236                 self.parent = parent
 237
 238         def cancel(self):
 239                 self.parent.reload()
 240
 241         def save(self):
 242                 self.parent.save()
 243
 244         def checkValues(self):
 245                 if self.parent.value < 0:
 246                         self.parent.value = 0
 247
 248                 if self.parent.value > 10:
 249                         self.parent.value = 10
 250
 251         def handleKey(self, key):
 252                 if key == config.key["prevElement"]:
 253                         self.parent.value = self.parent.value - 1
 254                 if key == config.key["nextElement"]:
 255                         self.parent.value = self.parent.value + 1
 256
 257                 self.checkValues()
 258                 self.parent.change()
 259
 260         def __call__(self, selected):                   #needed by configlist
 261                 self.checkValues()
 262                 return ("slider", self.parent.value * 10)
 263
 264 class ConfigSubsection:
 265         def __init__(self):
 266                 pass
 267
 268 class configElement:
 269
 270         def getIndexbyEntry(self, data):
 271                 cnt = 0;
 272                 tcnt = -1; #for defaultval
 273                 for x in self.vals:
 274                         if int(x[1]) == int(data):
 275                                         return cnt
 276                         if int(x[1]) == int(self.defaultValue):
 277                                         tcnt = cnt
 278                         cnt += 1
 279                 if tcnt != -1:
 280                         return tcnt
 281                 return 0        #prevent bigger then array
 282
 283         def datafromFile(self, control, data):
 284                 if control == ConfigSlider:
 285                         return int(data);
 286                 elif control == configSelection:
 287                         return int(data);
 288                 elif control == configSequence:
 289                         list = [ ]
 290                         part = data.split(self.vals[0])
 291                         for x in part:
 292                                 list.append(int(x))
 293                         return list
 294                 elif control == configSatlist:
 295                         return self.getIndexbyEntry(data)
 296                 else:
 297                         return ""
 298
 299         def datatoFile(self, control, data):
 300                 if control == ConfigSlider:
 301                         return str(data);
 302                 elif control == configSelection:
 303                         return str(data);
 304                 elif control == configSequence:
 305                         value = ((len(data) * ("%d" + self.vals[0]))[0:-1]) % tuple(data)
 306 #                       just in case you don't understand the above, here an equivalent:
 307 #                       value = ""
 308 #                       for i in data:
 309 #                               if value !="":
 310 #                                       value += self.vals[0]
 311 #                               value += str(i)
 312                         return value
 313                 elif control == configSatlist:
 314                         return str(self.vals[self.value][1]);
 315                 else:
 316                         return ""
 317
 318         def loadData(self):
 319                 try:
 320                         value = self.datafromFile(self.controlType, configfile.getKey(self.configPath))
 321                 except:
 322                         value = ""
 323
 324                 if value == "":
 325                         print "value not found - using default"
 326
 327                         if self.controlType == configSatlist:
 328                                 self.value = self.getIndexbyEntry(self.defaultValue)
 329                         else:
 330                                 self.value = self.defaultValue
 331
 332                         self.save()             #add missing value to dict
 333                 else:
 334                         self.value = value
 335
 336                 #is this right? activate settings after load/cancel and use default
 337                 self.change()
 338
 339         def __init__(self, configPath, control, defaultValue, vals):
 340                 self.configPath = configPath
 341                 self.defaultValue = defaultValue
 342                 self.controlType = control
 343                 self.vals = vals
 344                 self.notifierList = [ ]
 345                 self.enabled = True
 346                 self.loadData()
 347         def addNotifier(self, notifier):
 348                 self.notifierList.append(notifier);
 349                 notifier(self);
 350         def change(self):
 351                 for notifier in self.notifierList:
 352                         notifier(self)
 353         def reload(self):
 354                 self.loadData()
 355         def save(self):
 356                 configfile.setKey(self.configPath, self.datatoFile(self.controlType,self.value))
 357
 358 class configElement_nonSave(configElement):
 359         def __init__(self, configPath, control, defaultValue, vals):
 360                 configElement.__init__(self, configPath, control, defaultValue, vals)
 361
 362         def save(self):
 363                 pass
 364
 365 def getConfigListEntry(description, element):
 366         b = element
 367         item = b.controlType(b)
 368         return ((description, item))