lib/python/Components/config.py

   1 import time
   2 from Tools.NumericalTextInput import NumericalTextInput
   3 from Tools.Directories import resolveFilename, SCOPE_CONFIG
   4
   5
   6 # ConfigElement, the base class of all ConfigElements.
   7
   8 # it stores:
   9 #   value    the current value, usefully encoded.
  10 #            usually a property which retrieves _value,
  11 #            and maybe does some reformatting
  12 #   _value   the value as it's going to be saved in the configfile,
  13 #            though still in non-string form.
  14 #            this is the object which is actually worked on.
  15 #   default  the initial value. If _value is equal to default,
  16 #            it will not be stored in the config file
  17 #   saved_value is a text representation of _value, stored in the config file
  18 #
  19 # and has (at least) the following methods:
  20 #   save()   stores _value into saved_value,
  21 #            (or stores 'None' if it should not be stored)
  22 #   load()   loads _value from saved_value, or loads
  23 #            the default if saved_value is 'None' (default)
  24 #            or invalid.
  25 #
  26 class ConfigElement(object):
  27         def __init__(self):
  28                 object.__init__(self)
  29                 self.saved_value = None
  30                 self.save_disabled = False
  31                 self.notifiers = []
  32                 self.enabled = True
  33
  34         # you need to override this to do input validation
  35         def setValue(self, value):
  36                 self._value = value
  37                 self.changed()
  38
  39         def getValue(self):
  40                 return self._value
  41
  42         value = property(getValue, setValue)
  43
  44         # you need to override this if self.value is not a string
  45         def fromstring(self, value):
  46                 return value
  47
  48         # you can overide this for fancy default handling
  49         def load(self):
  50                 if self.saved_value is None:
  51                         self.value = self.default
  52                 else:
  53                         self.value = self.fromstring(self.saved_value)
  54
  55         def tostring(self, value):
  56                 return str(value)
  57
  58         # you need to override this if str(self.value) doesn't work
  59         def save(self):
  60                 if self.save_disabled or self.value == self.default:
  61                         self.saved_value = None
  62                 else:
  63                         self.saved_value = self.tostring(self.value)
  64
  65         def cancel(self):
  66                 self.load()
  67
  68         def changed(self):
  69                 for x in self.notifiers:
  70                         x(self)
  71
  72         def addNotifier(self, notifier):
  73                 assert callable(notifier), "notifiers must be callable"
  74                 self.notifiers.append(notifier)
  75
  76         def disableSave(self):
  77                 self.save_disabled = True
  78
  79         def __call__(self, selected):
  80                 return self.getMulti(selected)
  81
  82         def helpWindow(self):
  83                 return None
  84
  85 KEY_LEFT = 0
  86 KEY_RIGHT = 1
  87 KEY_OK = 2
  88 KEY_DELETE = 3
  89 KEY_TIMEOUT = 4
  90 KEY_NUMBERS = range(12, 12+10)
  91 KEY_0 = 12
  92 KEY_9 = 12+9
  93
  94 def getKeyNumber(key):
  95         assert key in KEY_NUMBERS
  96         return key - KEY_0
  97
  98 #
  99 # ConfigSelection is a "one of.."-type.
 100 # it has the "choices", usually a list, which contains
 101 # (id, desc)-tuples (or just only the ids, in case the id
 102 # will be used as description)
 103 #
 104 # all ids MUST be plain strings.
 105 #
 106 class ConfigSelection(ConfigElement):
 107         def __init__(self, choices, default = None):
 108                 ConfigElement.__init__(self)
 109                 self.choices = []
 110                 self.description = {}
 111
 112                 if isinstance(choices, list):
 113                         for x in choices:
 114                                 if isinstance(x, tuple):
 115                                         self.choices.append(x[0])
 116                                         self.description[x[0]] = x[1]
 117                                 else:
 118                                         self.choices.append(x)
 119                                         self.description[x] = x
 120                 elif isinstance(choices, dict):
 121                         for (key, val) in choices.items():
 122                                 self.choices.append(key)
 123                                 self.description[key] = val
 124                 else:
 125                         assert False, "ConfigSelection choices must be dict or list!"
 126
 127                 assert len(self.choices), "you can't have an empty configselection"
 128
 129                 if default is None:
 130                         default = self.choices[0]
 131
 132                 assert default in self.choices, "default must be in choice list, but " + repr(default) + " is not!"
 133                 for x in self.choices:
 134                         assert isinstance(x, str), "ConfigSelection choices must be strings"
 135
 136                 self.value = self.default = default
 137
 138         def setValue(self, value):
 139                 if value in self.choices:
 140                         self._value = value
 141                 else:
 142                         self._value = self.default
 143
 144                 self.changed()
 145
 146         def tostring(self, val):
 147                 return (val, ','.join(self.choices))
 148
 149         def getValue(self):
 150                 return self._value
 151
 152         value = property(getValue, setValue)
 153
 154         def getIndex(self):
 155                 return self.choices.index(self.value)
 156
 157         index = property(getIndex)
 158
 159         # GUI
 160         def handleKey(self, key):
 161                 nchoices = len(self.choices)
 162                 i = self.choices.index(self.value)
 163                 if key == KEY_LEFT:
 164                         self.value = self.choices[(i + nchoices - 1) % nchoices]
 165                 elif key == KEY_RIGHT:
 166                         self.value = self.choices[(i + 1) % nchoices]
 167                 elif key == KEY_TIMEOUT:
 168                         self.timeout()
 169                         return
 170
 171         def getMulti(self, selected):
 172                 return ("text", self.description[self.value])
 173
 174         # HTML
 175         def getHTML(self, id):
 176                 res = ""
 177                 for v in self.choices:
 178                         if self.value == v:
 179                                 checked = 'checked="checked" '
 180                         else:
 181                                 checked = ''
 182                         res += '<input type="radio" name="' + id + '" ' + checked + 'value="' + v + '">' + self.description[v] + "</input></br>\n"
 183                 return res;
 184
 185         def unsafeAssign(self, value):
 186                 # setValue does check if value is in choices. This is safe enough.
 187                 self.value = value
 188
 189 # a binary decision.
 190 #
 191 # several customized versions exist for different
 192 # descriptions.
 193 #
 194 class ConfigBoolean(ConfigElement):
 195         def __init__(self, default = False, descriptions = {False: "false", True: "true"}):
 196                 ConfigElement.__init__(self)
 197                 self.descriptions = descriptions
 198                 self.value = self.default = default
 199         def handleKey(self, key):
 200                 if key in [KEY_LEFT, KEY_RIGHT]:
 201                         self.value = not self.value
 202
 203         def getMulti(self, selected):
 204                 return ("text", _(self.descriptions[self.value]))
 205
 206         def tostring(self, value):
 207                 if not value:
 208                         return "false"
 209                 else:
 210                         return "true"
 211
 212         def fromstring(self, val):
 213                 if val == "true":
 214                         return True
 215                 else:
 216                         return False
 217
 218         def getHTML(self, id):
 219                 if self.value:
 220                         checked = ' checked="checked"'
 221                 else:
 222                         checked = ''
 223                 return '<input type="checkbox" name="' + id + '" value="1" ' + checked + " />"
 224
 225         # this is FLAWED. and must be fixed.
 226         def unsafeAssign(self, value):
 227                 if value == "1":
 228                         self.value = True
 229                 else:
 230                         self.value = False
 231
 232 class ConfigYesNo(ConfigBoolean):
 233         def __init__(self, default = False):
 234                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("no"), True: _("yes")})
 235
 236 class ConfigOnOff(ConfigBoolean):
 237         def __init__(self, default = False):
 238                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("off"), True: _("on")})
 239
 240 class ConfigEnableDisable(ConfigBoolean):
 241         def __init__(self, default = False):
 242                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("disable"), True: _("enable")})
 243
 244 class ConfigDateTime(ConfigElement):
 245         def __init__(self, default, formatstring, increment = 86400):
 246                 ConfigElement.__init__(self)
 247                 self.increment = increment
 248                 self.formatstring = formatstring
 249                 self.value = self.default = int(default)
 250
 251         def handleKey(self, key):
 252                 if key == KEY_LEFT:
 253                         self.value = self.value - self.increment
 254                 if key == KEY_RIGHT:
 255                         self.value = self.value + self.increment
 256
 257         def getMulti(self, selected):
 258                 return ("text", time.strftime(self.formatstring, time.localtime(self.value)))
 259
 260         def fromstring(self, val):
 261                 return int(val)
 262
 263 # *THE* mighty config element class
 264 #
 265 # allows you to store/edit a sequence of values.
 266 # can be used for IP-addresses, dates, plain integers, ...
 267 # several helper exist to ease this up a bit.
 268 #
 269 class ConfigSequence(ConfigElement):
 270         def __init__(self, seperator, limits, censor_char = "", default = None):
 271                 ConfigElement.__init__(self)
 272                 assert isinstance(limits, list) and len(limits[0]) == 2, "limits must be [(min, max),...]-tuple-list"
 273                 assert censor_char == "" or len(censor_char) == 1, "censor char must be a single char (or \"\")"
 274                 #assert isinstance(default, list), "default must be a list"
 275                 #assert isinstance(default[0], int), "list must contain numbers"
 276                 #assert len(default) == len(limits), "length must match"
 277
 278                 self.marked_pos = 0
 279                 self.seperator = seperator
 280                 self.limits = limits
 281                 self.censor_char = censor_char
 282
 283                 self.value = self.default = default
 284
 285         def validate(self):
 286                 max_pos = 0
 287                 num = 0
 288                 for i in self._value:
 289                         max_pos += len(str(self.limits[num][1]))
 290
 291                         while self._value[num] < self.limits[num][0]:
 292                                 self.value[num] += 1
 293
 294                         while self._value[num] > self.limits[num][1]:
 295                                 self._value[num] -= 1
 296
 297                         num += 1
 298
 299                 if self.marked_pos >= max_pos:
 300                         self.marked_pos = max_pos - 1
 301
 302                 if self.marked_pos < 0:
 303                         self.marked_pos = 0
 304
 305         def validatePos(self):
 306                 if self.marked_pos < 0:
 307                         self.marked_pos = 0
 308
 309                 total_len = sum([len(str(x[1])) for x in self.limits])
 310
 311                 if self.marked_pos >= total_len:
 312                         self.marked_pos = total_len - 1
 313
 314         def handleKey(self, key):
 315                 if key == KEY_LEFT:
 316                         self.marked_pos -= 1
 317                         self.validatePos()
 318
 319                 if key == KEY_RIGHT:
 320                         self.marked_pos += 1
 321                         self.validatePos()
 322
 323                 if key in KEY_NUMBERS:
 324                         print "is number"
 325                         block_len = []
 326                         for x in self.limits:
 327                                 block_len.append(len(str(x[1])))
 328
 329                         total_len = sum(block_len)
 330
 331                         pos = 0
 332                         blocknumber = 0
 333                         block_len_total = [0, ]
 334                         for x in block_len:
 335                                 pos += block_len[blocknumber]
 336                                 block_len_total.append(pos)
 337                                 if pos - 1 >= self.marked_pos:
 338                                         pass
 339                                 else:
 340                                         blocknumber += 1
 341
 342                         number = getKeyNumber(key)
 343
 344                         # length of numberblock
 345                         number_len = len(str(self.limits[blocknumber][1]))
 346
 347                         # position in the block
 348                         posinblock = self.marked_pos - block_len_total[blocknumber]
 349
 350                         oldvalue = self._value[blocknumber]
 351                         olddec = oldvalue % 10 ** (number_len - posinblock) - (oldvalue % 10 ** (number_len - posinblock - 1))
 352                         newvalue = oldvalue - olddec + (10 ** (number_len - posinblock - 1) * number)
 353
 354                         self._value[blocknumber] = newvalue
 355                         self.marked_pos += 1
 356
 357                         self.validate()
 358                         self.changed()
 359
 360                         print "res:", self._value
 361
 362         def getMulti(self, selected):
 363                 value = ""
 364                 mPos = self.marked_pos
 365                 num = 0;
 366                 for i in self._value:
 367                         if len(value):  #fixme no heading separator possible
 368                                 value += self.seperator
 369                                 if mPos >= len(value) - 1:
 370                                         mPos += 1
 371
 372                         if self.censor_char == "":
 373                                 value += ("%0" + str(len(str(self.limits[num][1]))) + "d") % i
 374                         else:
 375                                 value += (self.censorChar * len(str(self.limits[num][1])))
 376                         num += 1
 377
 378                         # only mark cursor when we are selected
 379                         # (this code is heavily ink optimized!)
 380                 if self.enabled:
 381                         return ("mtext"[1-selected:], value, [mPos])
 382                 else:
 383                         return ("text", value)
 384
 385         def tostring(self, val):
 386                 return self.seperator.join([self.saveSingle(x) for x in val])
 387
 388         def saveSingle(self, v):
 389                 return str(v)
 390
 391         def fromstring(self, value):
 392                 return [int(x) for x in self.saved_value.split(self.seperator)]
 393
 394 class ConfigIP(ConfigSequence):
 395         def __init__(self, default):
 396                 ConfigSequence.__init__(self, seperator = ".", limits = [(0,255),(0,255),(0,255),(0,255)], default = default)
 397
 398 class ConfigMAC(ConfigSequence):
 399         def __init__(self, default):
 400                 ConfigSequence.__init__(self, seperator = ":", limits = [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)], default = default)
 401
 402 class ConfigPosition(ConfigSequence):
 403         def __init__(self, default, args):
 404                 ConfigSequence.__init__(self, seperator = ",", limits = [(0,args[0]),(0,args[1]),(0,args[2]),(0,args[3])], default = default)
 405
 406 class ConfigClock(ConfigSequence):
 407         def __init__(self, default):
 408                 ConfigSequence.__init__(self, seperator = ":", limits = [(0,23),(0,59)], default = default)
 409
 410 class ConfigInteger(ConfigSequence):
 411         def __init__(self, default, limits):
 412                 ConfigSequence.__init__(self, seperator = ":", limits = [limits], default = default)
 413
 414         # you need to override this to do input validation
 415         def setValue(self, value):
 416                 self._value = [value]
 417                 self.changed()
 418
 419         def getValue(self):
 420                 return self._value[0]
 421
 422         value = property(getValue, setValue)
 423
 424         def fromstring(self, value):
 425                 return int(value)
 426
 427         def tostring(self, value):
 428                 return str(value)
 429
 430 class ConfigPIN(ConfigSequence):
 431         def __init__(self, default, len = 4, censor = ""):
 432                 ConfigSequence.__init__(self, seperator = ":", limits = [(0, (10**len)-1)], censor_char = censor, default = [default])
 433
 434 class ConfigFloat(ConfigSequence):
 435         def __init__(self, default, limits):
 436                 ConfigSequence.__init__(self, seperator = ".", limits = limits, default = default)
 437
 438         def getFloat(self):
 439                 return float(self.value[1] / float(self.limits[1][1] + 1) + self.value[0])
 440
 441         float = property(getFloat)
 442
 443 # an editable text...
 444 class ConfigText(ConfigElement, NumericalTextInput):
 445         def __init__(self, default = "", fixed_size = True):
 446                 ConfigElement.__init__(self)
 447                 NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False)
 448
 449                 self.marked_pos = 0
 450                 self.fixed_size = fixed_size
 451
 452                 self.value = self.default = default
 453
 454         def validateMarker(self):
 455                 if self.marked_pos < 0:
 456                         self.marked_pos = 0
 457                 if self.marked_pos >= len(self.text):
 458                         self.marked_pos = len(self.text) - 1
 459
 460         #def nextEntry(self):
 461         #       self.vals[1](self.getConfigPath())
 462
 463         def handleKey(self, key):
 464                 # this will no change anything on the value itself
 465                 # so we can handle it here in gui element
 466                 if key == KEY_DELETE:
 467                         self.text = self.text[0:self.marked_pos] + self.text[self.marked_pos + 1:]
 468                 elif key == KEY_LEFT:
 469                         self.marked_pos -= 1
 470                 elif key == KEY_RIGHT:
 471                         self.marked_pos += 1
 472                         if not self.fixed_size:
 473                                 if self.marked_pos >= len(self.text):
 474                                         self.text = self.text.ljust(len(self.text) + 1)
 475                 elif key in KEY_NUMBERS:
 476                         number = self.getKey(getKeyNumber(key))
 477                         self.text = self.text[0:self.marked_pos] + str(number) + self.text[self.marked_pos + 1:]
 478                 elif key == KEY_TIMEOUT:
 479                         self.timeout()
 480                         return
 481
 482                 self.validateMarker()
 483                 self.changed()
 484
 485         def nextFunc(self):
 486                 self.marked_pos += 1
 487                 self.validateMarker()
 488                 self.changed()
 489
 490         def getValue(self):
 491                 return self.text.encode("utf-8")
 492
 493         def setValue(self, val):
 494                 try:
 495                         self.text = val.decode("utf-8")
 496                 except UnicodeDecodeError:
 497                         self.text = val
 498                         print "Broken UTF8!"
 499
 500         value = property(getValue, setValue)
 501         _value = property(getValue, setValue)
 502
 503         def getMulti(self, selected):
 504                 return ("mtext"[1-selected:], self.value, [self.marked_pos])
 505
 506         def helpWindow(self):
 507                 print "helpWindow for text!"
 508
 509                 from Screens.NumericalTextInputHelpDialog import NumericalTextInputHelpDialog
 510                 return (NumericalTextInputHelpDialog,self)
 511
 512         def getHTML(self, id):
 513                 return '<input type="text" name="' + id + '" value="' + self.value + '" /><br>\n'
 514
 515         def unsafeAssign(self, value):
 516                 self.value = str(value)
 517
 518 # a slider.
 519 class ConfigSlider(ConfigElement):
 520         def __init__(self, default = 0, increment = 1, limits = (0, 100)):
 521                 ConfigElement.__init__(self)
 522                 self.value = self.default = default
 523                 self.min = limits[0]
 524                 self.max = limits[1]
 525                 self.increment = increment
 526
 527         def checkValues(self):
 528                 if self.value < self.min:
 529                         self.value = self.min
 530
 531                 if self.value > self.max:
 532                         self.value = self.max
 533
 534         def handleKey(self, key):
 535                 if key == KEY_LEFT:
 536                         self.value -= self.increment
 537                 elif key == KEY_RIGHT:
 538                         self.value += self.increment
 539                 else:
 540                         return
 541
 542                 self.checkValues()
 543                 self.changed()
 544
 545         def getMulti(self, selected):
 546                 self.checkValues()
 547                 return ("slider", self.value, self.max)
 548
 549         def fromstring(self, value):
 550                 return int(value)
 551
 552 # a satlist. in fact, it's a ConfigSelection.
 553 class ConfigSatlist(ConfigSelection):
 554         def __init__(self, list, default = None):
 555                 if default is not None:
 556                         default = str(default)
 557                 if list == [ ]:
 558                         list = [0, "N/A"]
 559                 ConfigSelection.__init__(self, choices = [(str(orbpos), desc) for (orbpos, desc) in list], default = default)
 560
 561         def getOrbitalPosition(self):
 562                 return int(self.value)
 563
 564         orbital_position = property(getOrbitalPosition)
 565
 566 # nothing.
 567 class ConfigDummy(ConfigSelection):
 568         def __init__(self):
 569                 ConfigSelection.__init__(self, choices = [""])
 570
 571 # until here, 'saved_value' always had to be a *string*.
 572 # now, in ConfigSubsection, and only there, saved_value
 573 # is a dict, essentially forming a tree.
 574 #
 575 # config.foo.bar=True
 576 # config.foobar=False
 577 #
 578 # turns into:
 579 # config.saved_value == {"foo": {"bar": "True"}, "foobar": "False"}
 580 #
 581
 582
 583 class ConfigSubsectionContent(object):
 584         pass
 585
 586 # we store a backup of the loaded configuration
 587 # data in self.stored_values, to be able to deploy
 588 # them when a new config element will be added,
 589 # so non-default values are instantly available
 590
 591 # A list, for example:
 592 # config.dipswitches = ConfigSubList()
 593 # config.dipswitches.append(ConfigYesNo())
 594 # config.dipswitches.append(ConfigYesNo())
 595 # config.dipswitches.append(ConfigYesNo())
 596 class ConfigSubList(list, object):
 597         def __init__(self):
 598                 object.__init__(self)
 599                 list.__init__(self)
 600                 self.stored_values = {}
 601
 602         def save(self):
 603                 for x in self:
 604                         x.save()
 605
 606         def load(self):
 607                 for x in self:
 608                         x.load()
 609
 610         def getSavedValue(self):
 611                 res = {}
 612                 for i in range(len(self)):
 613                         sv = self[i].saved_value
 614                         if sv is not None:
 615                                 res[str(i)] = sv
 616                 return res
 617
 618         def setSavedValue(self, values):
 619                 self.stored_values = dict(values)
 620                 for (key, val) in self.stored_values.items():
 621                         if int(key) < len(self):
 622                                 self[int(key)].saved_value = val
 623
 624         saved_value = property(getSavedValue, setSavedValue)
 625
 626         def append(self, item):
 627                 list.append(self, item)
 628                 i = str(len(self))
 629                 if i in self.stored_values:
 630                         item.saved_value = self.stored_values[i]
 631                         item.load()
 632
 633 # same as ConfigSubList, just as a dictionary.
 634 # care must be taken that the 'key' has a proper
 635 # str() method, because it will be used in the config
 636 # file.
 637 class ConfigSubDict(dict, object):
 638         def __init__(self):
 639                 object.__init__(self)
 640                 dict.__init__(self)
 641                 self.stored_values = {}
 642
 643         def save(self):
 644                 for x in self.values():
 645                         x.save()
 646
 647         def load(self):
 648                 for x in self.values():
 649                         x.load()
 650
 651         def getSavedValue(self):
 652                 res = {}
 653                 for (key, val) in self.items():
 654                         if val.saved_value is not None:
 655                                 res[str(key)] = val.saved_value
 656                 return res
 657
 658         def setSavedValue(self, values):
 659                 self.stored_values = dict(values)
 660                 for (key, val) in self.items():
 661                         if str(key) in self.stored_values:
 662                                 val = self.stored_values[str(key)]
 663
 664         saved_value = property(getSavedValue, setSavedValue)
 665
 666         def __setitem__(self, key, item):
 667                 dict.__setitem__(self, key, item)
 668                 if str(key) in self.stored_values:
 669                         item.saved_value = self.stored_values[str(key)]
 670                         item.load()
 671
 672 # Like the classes above, just with a more "native"
 673 # syntax.
 674 #
 675 # some evil stuff must be done to allow instant
 676 # loading of added elements. this is why this class
 677 # is so complex.
 678 #
 679 # we need the 'content' because we overwrite
 680 # __setattr__.
 681 # If you don't understand this, try adding
 682 # __setattr__ to a usual exisiting class and you will.
 683 class ConfigSubsection(object):
 684         def __init__(self):
 685                 object.__init__(self)
 686                 self.__dict__["content"] = ConfigSubsectionContent()
 687                 self.content.items = { }
 688                 self.content.stored_values = { }
 689
 690         def __setattr__(self, name, value):
 691                 if name == "saved_value":
 692                         return self.setSavedValue(value)
 693                 self.content.items[name] = value
 694                 if name in self.content.stored_values:
 695                         #print "ok, now we have a new item,", name, "and have the following value for it:", self.content.stored_values[name]
 696                         value.saved_value = self.content.stored_values[name]
 697                         value.load()
 698
 699         def __getattr__(self, name):
 700                 return self.content.items[name]
 701
 702         def getSavedValue(self):
 703                 res = self.content.stored_values
 704                 for (key, val) in self.content.items.items():
 705                         if val.saved_value is not None:
 706                                 res[key] = val.saved_value
 707                 return res
 708
 709         def setSavedValue(self, values):
 710                 values = dict(values)
 711
 712                 self.content.stored_values = values
 713
 714                 for (key, val) in self.content.items.items():
 715                         if key in values:
 716                                 val.setSavedValue(values[key])
 717
 718         saved_value = property(getSavedValue, setSavedValue)
 719
 720         def save(self):
 721                 for x in self.content.items.values():
 722                         x.save()
 723
 724         def load(self):
 725                 for x in self.content.items.values():
 726                         x.load()
 727
 728 # the root config object, which also can "pickle" (=serialize)
 729 # down the whole config tree.
 730 #
 731 # we try to keep non-existing config entries, to apply them whenever
 732 # a new config entry is added to a subsection
 733 # also, non-existing config entries will be saved, so they won't be
 734 # lost when a config entry disappears.
 735 class Config(ConfigSubsection):
 736         def __init__(self):
 737                 ConfigSubsection.__init__(self)
 738
 739         def pickle_this(self, prefix, topickle, result):
 740                 for (key, val) in topickle.items():
 741                         name = prefix + "." + key
 742
 743                         if isinstance(val, dict):
 744                                 self.pickle_this(name, val, result)
 745                         elif isinstance(val, tuple):
 746                                 result.append(name + "=" + val[0]) # + " ; " + val[1])
 747                         else:
 748                                 result.append(name + "=" + val)
 749
 750         def pickle(self):
 751                 result = [ ]
 752                 self.pickle_this("config", self.saved_value, result)
 753                 return '\n'.join(result) + "\n"
 754
 755         def unpickle(self, lines):
 756                 tree = { }
 757                 for l in lines:
 758                         if not len(l) or l[0] == '#':
 759                                 continue
 760
 761                         n = l.find('=')
 762                         val = l[n+1:].strip()
 763
 764                         names = l[:n].split('.')
 765 #                       if val.find(' ') != -1:
 766 #                               val = val[:val.find(' ')]
 767
 768                         base = tree
 769
 770                         for n in names[:-1]:
 771                                 base = base.setdefault(n, {})
 772
 773                         base[names[-1]] = val
 774
 775                 # we inherit from ConfigSubsection, so ...
 776                 #object.__setattr__(self, "saved_value", tree["config"])
 777                 self.setSavedValue(tree["config"])
 778
 779         def saveToFile(self, filename):
 780                 f = open(filename, "w")
 781                 f.write(self.pickle())
 782                 f.close()
 783
 784         def loadFromFile(self, filename):
 785                 f = open(filename, "r")
 786                 self.unpickle(f.readlines())
 787                 f.close()
 788
 789 config = Config()
 790 config.misc = ConfigSubsection()
 791
 792 class ConfigFile:
 793         CONFIG_FILE = resolveFilename(SCOPE_CONFIG, "config2")
 794
 795         def load(self):
 796                 try:
 797                         config.loadFromFile(self.CONFIG_FILE)
 798                 except IOError, e:
 799                         print "unable to load config (%s), assuming defaults..." % str(e)
 800
 801         def save(self):
 802                 config.save()
 803                 config.saveToFile(self.CONFIG_FILE)
 804
 805         def getResolvedKey(self, key):
 806                 return None # FIXME
 807
 808 def NoSave(element):
 809         element.disableSave()
 810         return element
 811
 812 configfile = ConfigFile()
 813
 814 configfile.load()
 815
 816 def getConfigListEntry(desc, config):
 817         return (desc, config)
 818
 819 #def _(x):
 820 #       return x
 821 #
 822 #config.bla = ConfigSubsection()
 823 #config.bla.test = ConfigYesNo()
 824 #config.nim = ConfigSubList()
 825 #config.nim.append(ConfigSubsection())
 826 #config.nim[0].bla = ConfigYesNo()
 827 #config.nim.append(ConfigSubsection())
 828 #config.nim[1].bla = ConfigYesNo()
 829 #config.nim[1].blub = ConfigYesNo()
 830 #config.arg = ConfigSubDict()
 831 #config.arg["Hello"] = ConfigYesNo()
 832 #
 833 #config.arg["Hello"].handleKey(KEY_RIGHT)
 834 #config.arg["Hello"].handleKey(KEY_RIGHT)
 835 #
 836 ##config.saved_value
 837 #
 838 ##configfile.save()
 839 #config.save()
 840 #print config.pickle()