lib/python/Components/config.py

   1 import time
   2 from enigma import getPrevAsciiCode
   3 from Tools.NumericalTextInput import NumericalTextInput
   4 from Tools.Directories import resolveFilename, SCOPE_CONFIG
   5 from Components.Harddisk import harddiskmanager
   6 import copy
   7 import os
   8
   9 # ConfigElement, the base class of all ConfigElements.
  10
  11 # it stores:
  12 #   value    the current value, usefully encoded.
  13 #            usually a property which retrieves _value,
  14 #            and maybe does some reformatting
  15 #   _value   the value as it's going to be saved in the configfile,
  16 #            though still in non-string form.
  17 #            this is the object which is actually worked on.
  18 #   default  the initial value. If _value is equal to default,
  19 #            it will not be stored in the config file
  20 #   saved_value is a text representation of _value, stored in the config file
  21 #
  22 # and has (at least) the following methods:
  23 #   save()   stores _value into saved_value,
  24 #            (or stores 'None' if it should not be stored)
  25 #   load()   loads _value from saved_value, or loads
  26 #            the default if saved_value is 'None' (default)
  27 #            or invalid.
  28 #
  29 class ConfigElement(object):
  30         def __init__(self):
  31
  32                 object.__init__(self)
  33                 self.saved_value = None
  34                 self.save_disabled = False
  35                 self.notifiers = []
  36                 self.enabled = True
  37                 self.callNotifiersOnSaveAndCancel = False
  38
  39         # you need to override this to do input validation
  40         def setValue(self, value):
  41                 self._value = value
  42                 self.changed()
  43
  44         def getValue(self):
  45                 return self._value
  46
  47         value = property(getValue, setValue)
  48
  49         # you need to override this if self.value is not a string
  50         def fromstring(self, value):
  51                 return value
  52
  53         # you can overide this for fancy default handling
  54         def load(self):
  55                 sv = self.saved_value
  56                 if sv is None:
  57                         self.value = self.default
  58                 else:
  59                         self.value = self.fromstring(sv)
  60
  61         def tostring(self, value):
  62                 return str(value)
  63
  64         # you need to override this if str(self.value) doesn't work
  65         def save(self):
  66                 if self.save_disabled or self.value == self.default:
  67                         self.saved_value = None
  68                 else:
  69                         self.saved_value = self.tostring(self.value)
  70                 if self.callNotifiersOnSaveAndCancel:
  71                         self.changed()
  72
  73         def cancel(self):
  74                 self.load()
  75                 if self.callNotifiersOnSaveAndCancel:
  76                         self.changed()
  77
  78         def isChanged(self):
  79                 sv = self.saved_value
  80                 if sv is None and self.value == self.default:
  81                         return False
  82                 return self.tostring(self.value) != sv
  83
  84         def changed(self):
  85                 for x in self.notifiers:
  86                         x(self)
  87
  88         def addNotifier(self, notifier, initial_call = True):
  89                 assert callable(notifier), "notifiers must be callable"
  90                 self.notifiers.append(notifier)
  91
  92                 # CHECKME:
  93                 # do we want to call the notifier
  94                 #  - at all when adding it? (yes, though optional)
  95                 #  - when the default is active? (yes)
  96                 #  - when no value *yet* has been set,
  97                 #    because no config has ever been read (currently yes)
  98                 #    (though that's not so easy to detect.
  99                 #     the entry could just be new.)
 100                 if initial_call:
 101                         notifier(self)
 102
 103         def disableSave(self):
 104                 self.save_disabled = True
 105
 106         def __call__(self, selected):
 107                 return self.getMulti(selected)
 108
 109         def onSelect(self, session):
 110                 pass
 111
 112         def onDeselect(self, session):
 113                 pass
 114
 115 KEY_LEFT = 0
 116 KEY_RIGHT = 1
 117 KEY_OK = 2
 118 KEY_DELETE = 3
 119 KEY_BACKSPACE = 4
 120 KEY_HOME = 5
 121 KEY_END = 6
 122 KEY_TOGGLEOW = 7
 123 KEY_ASCII = 8
 124 KEY_TIMEOUT = 9
 125 KEY_NUMBERS = range(12, 12+10)
 126 KEY_0 = 12
 127 KEY_9 = 12+9
 128
 129 def getKeyNumber(key):
 130         assert key in KEY_NUMBERS
 131         return key - KEY_0
 132
 133 #
 134 # ConfigSelection is a "one of.."-type.
 135 # it has the "choices", usually a list, which contains
 136 # (id, desc)-tuples (or just only the ids, in case the id
 137 # will be used as description)
 138 #
 139 # all ids MUST be plain strings.
 140 #
 141 class ConfigSelection(ConfigElement):
 142         def __init__(self, choices, default = None):
 143                 ConfigElement.__init__(self)
 144                 self._value = None
 145                 self.setChoices(choices, default)
 146
 147         def setChoices(self, choices, default = None):
 148                 self.choices = []
 149                 self.description = {}
 150
 151                 if isinstance(choices, list):
 152                         for x in choices:
 153                                 if isinstance(x, tuple):
 154                                         self.choices.append(x[0])
 155                                         self.description[x[0]] = x[1]
 156                                 else:
 157                                         self.choices.append(x)
 158                                         self.description[x] = x
 159                 elif isinstance(choices, dict):
 160                         for (key, val) in choices.items():
 161                                 self.choices.append(key)
 162                                 self.description[key] = val
 163                 else:
 164                         assert False, "ConfigSelection choices must be dict or list!"
 165
 166                 #assert len(self.choices), "you can't have an empty configselection"
 167                 if len(self.choices) == 0:
 168                         self.choices = [""]
 169                         self.description[""] = ""
 170
 171                 if default is None:
 172                         default = self.choices[0]
 173
 174                 assert default in self.choices, "default must be in choice list, but " + repr(default) + " is not!"
 175                 for x in self.choices:
 176                         assert isinstance(x, str), "ConfigSelection choices must be strings"
 177
 178                 self.default = default
 179
 180                 if self.value == None or not self.value in self.choices:
 181                         self.value = default
 182
 183         def setValue(self, value):
 184                 if value in self.choices:
 185                         self._value = value
 186                 else:
 187                         self._value = self.default
 188
 189                 self.changed()
 190
 191         def tostring(self, val):
 192                 return val
 193
 194         def getValue(self):
 195                 return self._value
 196
 197         def setCurrentText(self, text):
 198                 i = self.choices.index(self.value)
 199                 del self.description[self.choices[i]]
 200                 self.choices[i] = text
 201                 self.description[text] = text
 202                 self._value = text
 203
 204         value = property(getValue, setValue)
 205
 206         def getIndex(self):
 207                 return self.choices.index(self.value)
 208
 209         index = property(getIndex)
 210
 211         # GUI
 212         def handleKey(self, key):
 213                 nchoices = len(self.choices)
 214                 i = self.choices.index(self.value)
 215                 if key == KEY_LEFT:
 216                         self.value = self.choices[(i + nchoices - 1) % nchoices]
 217                 elif key == KEY_RIGHT:
 218                         self.value = self.choices[(i + 1) % nchoices]
 219                 elif key == KEY_HOME:
 220                         self.value = self.choices[0]
 221                 elif key == KEY_END:
 222                         self.value = self.choices[nchoices - 1]
 223
 224         def selectNext(self):
 225                 nchoices = len(self.choices)
 226                 i = self.choices.index(self.value)
 227                 self.value = self.choices[(i + 1) % nchoices]
 228
 229         def getText(self):
 230                 descr = self.description[self.value]
 231                 if len(descr):
 232                         return _(descr)
 233                 return descr
 234
 235         def getMulti(self, selected):
 236                 descr = self.description[self.value]
 237                 if len(descr):
 238                         return ("text", _(descr))
 239                 return ("text", descr)
 240
 241         # HTML
 242         def getHTML(self, id):
 243                 res = ""
 244                 for v in self.choices:
 245                         if self.value == v:
 246                                 checked = 'checked="checked" '
 247                         else:
 248                                 checked = ''
 249                         res += '<input type="radio" name="' + id + '" ' + checked + 'value="' + v + '">' + self.description[v] + "</input></br>\n"
 250                 return res;
 251
 252         def unsafeAssign(self, value):
 253                 # setValue does check if value is in choices. This is safe enough.
 254                 self.value = value
 255
 256 # a binary decision.
 257 #
 258 # several customized versions exist for different
 259 # descriptions.
 260 #
 261 class ConfigBoolean(ConfigElement):
 262         def __init__(self, default = False, descriptions = {False: "false", True: "true"}):
 263                 ConfigElement.__init__(self)
 264                 self.descriptions = descriptions
 265                 self.value = self.default = default
 266         def handleKey(self, key):
 267                 if key in [KEY_LEFT, KEY_RIGHT]:
 268                         self.value = not self.value
 269                 elif key == KEY_HOME:
 270                         self.value = False
 271                 elif key == KEY_END:
 272                         self.value = True
 273
 274         def getText(self):
 275                 descr = self.descriptions[self.value]
 276                 if len(descr):
 277                         return _(descr)
 278                 return descr
 279
 280         def getMulti(self, selected):
 281                 descr = self.descriptions[self.value]
 282                 if len(descr):
 283                         return ("text", _(descr))
 284                 return ("text", descr)
 285
 286         def tostring(self, value):
 287                 if not value:
 288                         return "false"
 289                 else:
 290                         return "true"
 291
 292         def fromstring(self, val):
 293                 if val == "true":
 294                         return True
 295                 else:
 296                         return False
 297
 298         def getHTML(self, id):
 299                 if self.value:
 300                         checked = ' checked="checked"'
 301                 else:
 302                         checked = ''
 303                 return '<input type="checkbox" name="' + id + '" value="1" ' + checked + " />"
 304
 305         # this is FLAWED. and must be fixed.
 306         def unsafeAssign(self, value):
 307                 if value == "1":
 308                         self.value = True
 309                 else:
 310                         self.value = False
 311
 312 class ConfigYesNo(ConfigBoolean):
 313         def __init__(self, default = False):
 314                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("no"), True: _("yes")})
 315
 316 class ConfigOnOff(ConfigBoolean):
 317         def __init__(self, default = False):
 318                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("off"), True: _("on")})
 319
 320 class ConfigEnableDisable(ConfigBoolean):
 321         def __init__(self, default = False):
 322                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("disable"), True: _("enable")})
 323
 324 class ConfigDateTime(ConfigElement):
 325         def __init__(self, default, formatstring, increment = 86400):
 326                 ConfigElement.__init__(self)
 327                 self.increment = increment
 328                 self.formatstring = formatstring
 329                 self.value = self.default = int(default)
 330
 331         def handleKey(self, key):
 332                 if key == KEY_LEFT:
 333                         self.value = self.value - self.increment
 334                 elif key == KEY_RIGHT:
 335                         self.value = self.value + self.increment
 336                 elif key == KEY_HOME or key == KEY_END:
 337                         self.value = self.default
 338
 339         def getText(self):
 340                 return time.strftime(self.formatstring, time.localtime(self.value))
 341
 342         def getMulti(self, selected):
 343                 return ("text", time.strftime(self.formatstring, time.localtime(self.value)))
 344
 345         def fromstring(self, val):
 346                 return int(val)
 347
 348 # *THE* mighty config element class
 349 #
 350 # allows you to store/edit a sequence of values.
 351 # can be used for IP-addresses, dates, plain integers, ...
 352 # several helper exist to ease this up a bit.
 353 #
 354 class ConfigSequence(ConfigElement):
 355         def __init__(self, seperator, limits, censor_char = "", default = None):
 356                 ConfigElement.__init__(self)
 357                 assert isinstance(limits, list) and len(limits[0]) == 2, "limits must be [(min, max),...]-tuple-list"
 358                 assert censor_char == "" or len(censor_char) == 1, "censor char must be a single char (or \"\")"
 359                 #assert isinstance(default, list), "default must be a list"
 360                 #assert isinstance(default[0], int), "list must contain numbers"
 361                 #assert len(default) == len(limits), "length must match"
 362
 363                 self.marked_pos = 0
 364                 self.seperator = seperator
 365                 self.limits = limits
 366                 self.censor_char = censor_char
 367
 368                 self.default = default
 369                 self.value = copy.copy(default)
 370
 371                 self.endNotifier = []
 372
 373         def validate(self):
 374                 max_pos = 0
 375                 num = 0
 376                 for i in self._value:
 377                         max_pos += len(str(self.limits[num][1]))
 378
 379                         if self._value[num] < self.limits[num][0]:
 380                                 self._value[num] = self.limits[num][0]
 381
 382                         if self._value[num] > self.limits[num][1]:
 383                                 self._value[num] = self.limits[num][1]
 384
 385                         num += 1
 386
 387                 if self.marked_pos >= max_pos:
 388                         for x in self.endNotifier:
 389                                 x(self)
 390                         self.marked_pos = max_pos - 1
 391
 392                 if self.marked_pos < 0:
 393                         self.marked_pos = 0
 394
 395         def validatePos(self):
 396                 if self.marked_pos < 0:
 397                         self.marked_pos = 0
 398
 399                 total_len = sum([len(str(x[1])) for x in self.limits])
 400
 401                 if self.marked_pos >= total_len:
 402                         self.marked_pos = total_len - 1
 403
 404         def addEndNotifier(self, notifier):
 405                 self.endNotifier.append(notifier)
 406
 407         def handleKey(self, key):
 408                 if key == KEY_LEFT:
 409                         self.marked_pos -= 1
 410                         self.validatePos()
 411
 412                 if key == KEY_RIGHT:
 413                         self.marked_pos += 1
 414                         self.validatePos()
 415
 416                 if key == KEY_HOME:
 417                         self.marked_pos = 0
 418                         self.validatePos()
 419
 420                 if key == KEY_END:
 421                         max_pos = 0
 422                         num = 0
 423                         for i in self._value:
 424                                 max_pos += len(str(self.limits[num][1]))
 425                                 num += 1
 426                         self.marked_pos = max_pos - 1
 427                         self.validatePos()
 428
 429                 if key in KEY_NUMBERS or key == KEY_ASCII:
 430                         if key == KEY_ASCII:
 431                                 code = getPrevAsciiCode()
 432                                 if code < 48 or code > 57:
 433                                         return
 434                                 number = code - 48
 435                         else:
 436                                 number = getKeyNumber(key)
 437
 438                         block_len = []
 439                         for x in self.limits:
 440                                 block_len.append(len(str(x[1])))
 441
 442                         total_len = sum(block_len)
 443
 444                         pos = 0
 445                         blocknumber = 0
 446                         block_len_total = [0, ]
 447                         for x in block_len:
 448                                 pos += block_len[blocknumber]
 449                                 block_len_total.append(pos)
 450                                 if pos - 1 >= self.marked_pos:
 451                                         pass
 452                                 else:
 453                                         blocknumber += 1
 454
 455                         # length of numberblock
 456                         number_len = len(str(self.limits[blocknumber][1]))
 457
 458                         # position in the block
 459                         posinblock = self.marked_pos - block_len_total[blocknumber]
 460
 461                         oldvalue = self._value[blocknumber]
 462                         olddec = oldvalue % 10 ** (number_len - posinblock) - (oldvalue % 10 ** (number_len - posinblock - 1))
 463                         newvalue = oldvalue - olddec + (10 ** (number_len - posinblock - 1) * number)
 464
 465                         self._value[blocknumber] = newvalue
 466                         self.marked_pos += 1
 467
 468                         self.validate()
 469                         self.changed()
 470
 471         def genText(self):
 472                 value = ""
 473                 mPos = self.marked_pos
 474                 num = 0;
 475                 for i in self._value:
 476                         if len(value):  #fixme no heading separator possible
 477                                 value += self.seperator
 478                                 if mPos >= len(value) - 1:
 479                                         mPos += 1
 480
 481                         if self.censor_char == "":
 482                                 value += ("%0" + str(len(str(self.limits[num][1]))) + "d") % i
 483                         else:
 484                                 value += (self.censor_char * len(str(self.limits[num][1])))
 485                         num += 1
 486                 return (value, mPos)
 487
 488         def getText(self):
 489                 (value, mPos) = self.genText()
 490                 return value
 491
 492         def getMulti(self, selected):
 493                 (value, mPos) = self.genText()
 494                         # only mark cursor when we are selected
 495                         # (this code is heavily ink optimized!)
 496                 if self.enabled:
 497                         return ("mtext"[1-selected:], value, [mPos])
 498                 else:
 499                         return ("text", value)
 500
 501         def tostring(self, val):
 502                 return self.seperator.join([self.saveSingle(x) for x in val])
 503
 504         def saveSingle(self, v):
 505                 return str(v)
 506
 507         def fromstring(self, value):
 508                 return [int(x) for x in value.split(self.seperator)]
 509
 510 class ConfigIP(ConfigSequence):
 511         def __init__(self, default, auto_jump = False):
 512                 ConfigSequence.__init__(self, seperator = ".", limits = [(0,255),(0,255),(0,255),(0,255)], default = default)
 513                 self.block_len = []
 514                 for x in self.limits:
 515                         self.block_len.append(len(str(x[1])))
 516                 self.marked_block = 0
 517                 self.overwrite = True
 518                 self.auto_jump = auto_jump
 519
 520         def handleKey(self, key):
 521
 522                 if key == KEY_LEFT:
 523                         if self.marked_block > 0:
 524                                 self.marked_block -= 1
 525                         self.overwrite = True
 526
 527                 if key == KEY_RIGHT:
 528                         if self.marked_block < len(self.limits)-1:
 529                                 self.marked_block += 1
 530                         self.overwrite = True
 531
 532                 if key == KEY_HOME:
 533                         self.marked_block = 0
 534                         self.overwrite = True
 535
 536                 if key == KEY_END:
 537                         self.marked_block = len(self.limits)-1
 538                         self.overwrite = True
 539
 540                 if key in KEY_NUMBERS or key == KEY_ASCII:
 541                         if key == KEY_ASCII:
 542                                 code = getPrevAsciiCode()
 543                                 if code < 48 or code > 57:
 544                                         return
 545                                 number = code - 48
 546                         else:
 547                                 number = getKeyNumber(key)
 548                         oldvalue = self._value[self.marked_block]
 549
 550                         if self.overwrite:
 551                                 self._value[self.marked_block] = number
 552                                 self.overwrite = False
 553                         else:
 554                                 oldvalue *= 10
 555                                 newvalue = oldvalue + number
 556                                 if self.auto_jump and newvalue > self.limits[self.marked_block][1] and self.marked_block < len(self.limits)-1:
 557                                         self.handleKey(KEY_RIGHT)
 558                                         self.handleKey(key)
 559                                         return
 560                                 else:
 561                                         self._value[self.marked_block] = newvalue
 562
 563                         if len(str(self._value[self.marked_block])) >= self.block_len[self.marked_block]:
 564                                 self.handleKey(KEY_RIGHT)
 565
 566                         self.validate()
 567                         self.changed()
 568
 569         def genText(self):
 570                 value = ""
 571                 block_strlen = []
 572                 for i in self._value:
 573                         block_strlen.append(len(str(i)))
 574                         if len(value):
 575                                 value += self.seperator
 576                         value += str(i)
 577                 leftPos = sum(block_strlen[:(self.marked_block)])+self.marked_block
 578                 rightPos = sum(block_strlen[:(self.marked_block+1)])+self.marked_block
 579                 mBlock = range(leftPos, rightPos)
 580                 return (value, mBlock)
 581
 582         def getMulti(self, selected):
 583                 (value, mBlock) = self.genText()
 584                 if self.enabled:
 585                         return ("mtext"[1-selected:], value, mBlock)
 586                 else:
 587                         return ("text", value)
 588
 589         def getHTML(self, id):
 590                 # we definitely don't want leading zeros
 591                 return '.'.join(["%d" % d for d in self.value])
 592
 593 class ConfigMAC(ConfigSequence):
 594         def __init__(self, default):
 595                 ConfigSequence.__init__(self, seperator = ":", limits = [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)], default = default)
 596
 597 class ConfigPosition(ConfigSequence):
 598         def __init__(self, default, args):
 599                 ConfigSequence.__init__(self, seperator = ",", limits = [(0,args[0]),(0,args[1]),(0,args[2]),(0,args[3])], default = default)
 600
 601 class ConfigClock(ConfigSequence):
 602         def __init__(self, default):
 603                 import time
 604                 t = time.localtime(default)
 605                 ConfigSequence.__init__(self, seperator = ":", limits = [(0,23),(0,59)], default = [t.tm_hour, t.tm_min])
 606
 607         def increment(self):
 608                 # Check if Minutes maxed out
 609                 if self._value[1] == 59:
 610                         # Check if Hours not maxed out
 611                         if self._value[0] < 23:
 612                                 # Increment Hour, reset Minutes to 0
 613                                 self._value[0] += 1
 614                                 self._value[1] = 0
 615                 else:
 616                         # Increment Minutes
 617                         self._value[1] += 1
 618                 # Trigger change
 619                 self.changed()
 620
 621         def decrement(self):
 622                 # Check if Minutes is minimum
 623                 if self._value[1] == 0:
 624                         # Check if Hour is greater than 0
 625                         if self._value[0] > 0:
 626                                 # Decrement Hour, set Minutes to 59
 627                                 self._value[0] -= 1
 628                                 self._value[1] = 59
 629                 else:
 630                         # Decrement Minutes
 631                         self._value[1] -= 1
 632                 # Trigger change
 633                 self.changed()
 634
 635 class ConfigInteger(ConfigSequence):
 636         def __init__(self, default, limits = (0, 9999999999)):
 637                 ConfigSequence.__init__(self, seperator = ":", limits = [limits], default = default)
 638
 639         # you need to override this to do input validation
 640         def setValue(self, value):
 641                 self._value = [value]
 642                 self.changed()
 643
 644         def getValue(self):
 645                 return self._value[0]
 646
 647         value = property(getValue, setValue)
 648
 649         def fromstring(self, value):
 650                 return int(value)
 651
 652         def tostring(self, value):
 653                 return str(value)
 654
 655 class ConfigPIN(ConfigInteger):
 656         def __init__(self, default, len = 4, censor = ""):
 657                 assert isinstance(default, int), "ConfigPIN default must be an integer"
 658                 if default == -1:
 659                         default = "aaaa"
 660                 ConfigSequence.__init__(self, seperator = ":", limits = [(0, (10**len)-1)], censor_char = censor, default = default)
 661                 self.len = len
 662
 663         def getLength(self):
 664                 return self.len
 665
 666 class ConfigFloat(ConfigSequence):
 667         def __init__(self, default, limits):
 668                 ConfigSequence.__init__(self, seperator = ".", limits = limits, default = default)
 669
 670         def getFloat(self):
 671                 return float(self.value[1] / float(self.limits[1][1] + 1) + self.value[0])
 672
 673         float = property(getFloat)
 674
 675 # an editable text...
 676 class ConfigText(ConfigElement, NumericalTextInput):
 677         def __init__(self, default = "", fixed_size = True, visible_width = False):
 678                 ConfigElement.__init__(self)
 679                 NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False)
 680
 681                 self.marked_pos = 0
 682                 self.allmarked = (default != "")
 683                 self.fixed_size = fixed_size
 684                 self.visible_width = visible_width
 685                 self.offset = 0
 686                 self.overwrite = fixed_size
 687                 self.help_window = None
 688                 self.value = self.default = default
 689
 690         def validateMarker(self):
 691                 if self.fixed_size:
 692                         if self.marked_pos > len(self.text)-1:
 693                                 self.marked_pos = len(self.text)-1
 694                 else:
 695                         if self.marked_pos > len(self.text):
 696                                 self.marked_pos = len(self.text)
 697                 if self.marked_pos < 0:
 698                         self.marked_pos = 0
 699                 if self.visible_width:
 700                         if self.marked_pos < self.offset:
 701                                 self.offset = self.marked_pos
 702                         if self.marked_pos >= self.offset + self.visible_width:
 703                                 if self.marked_pos == len(self.text):
 704                                         self.offset = self.marked_pos - self.visible_width
 705                                 else:
 706                                         self.offset = self.marked_pos - self.visible_width + 1
 707                         if self.offset > 0 and self.offset + self.visible_width > len(self.text):
 708                                 self.offset = max(0, len(self.text) - self.visible_width)
 709
 710         def insertChar(self, ch, pos, owr):
 711                 if owr or self.overwrite:
 712                         self.text = self.text[0:pos] + ch + self.text[pos + 1:]
 713                 elif self.fixed_size:
 714                         self.text = self.text[0:pos] + ch + self.text[pos:-1]
 715                 else:
 716                         self.text = self.text[0:pos] + ch + self.text[pos:]
 717
 718         def deleteChar(self, pos):
 719                 if not self.fixed_size:
 720                         self.text = self.text[0:pos] + self.text[pos + 1:]
 721                 elif self.overwrite:
 722                         self.text = self.text[0:pos] + " " + self.text[pos + 1:]
 723                 else:
 724                         self.text = self.text[0:pos] + self.text[pos + 1:] + " "
 725
 726         def deleteAllChars(self):
 727                 if self.fixed_size:
 728                         self.text = " " * len(self.text)
 729                 else:
 730                         self.text = ""
 731                 self.marked_pos = 0
 732
 733         def handleKey(self, key):
 734                 # this will no change anything on the value itself
 735                 # so we can handle it here in gui element
 736                 if key == KEY_DELETE:
 737                         self.timeout()
 738                         if self.allmarked:
 739                                 self.deleteAllChars()
 740                                 self.allmarked = False
 741                         else:
 742                                 self.deleteChar(self.marked_pos)
 743                                 if self.fixed_size and self.overwrite:
 744                                         self.marked_pos += 1
 745                 elif key == KEY_BACKSPACE:
 746                         self.timeout()
 747                         if self.allmarked:
 748                                 self.deleteAllChars()
 749                                 self.allmarked = False
 750                         elif self.marked_pos > 0:
 751                                 self.deleteChar(self.marked_pos-1)
 752                                 if not self.fixed_size and self.offset > 0:
 753                                         self.offset -= 1
 754                                 self.marked_pos -= 1
 755                 elif key == KEY_LEFT:
 756                         self.timeout()
 757                         if self.allmarked:
 758                                 self.marked_pos = len(self.text)
 759                                 self.allmarked = False
 760                         else:
 761                                 self.marked_pos -= 1
 762                 elif key == KEY_RIGHT:
 763                         self.timeout()
 764                         if self.allmarked:
 765                                 self.marked_pos = 0
 766                                 self.allmarked = False
 767                         else:
 768                                 self.marked_pos += 1
 769                 elif key == KEY_HOME:
 770                         self.timeout()
 771                         self.allmarked = False
 772                         self.marked_pos = 0
 773                 elif key == KEY_END:
 774                         self.timeout()
 775                         self.allmarked = False
 776                         self.marked_pos = len(self.text)
 777                 elif key == KEY_TOGGLEOW:
 778                         self.timeout()
 779                         self.overwrite = not self.overwrite
 780                 elif key == KEY_ASCII:
 781                         self.timeout()
 782                         newChar = unichr(getPrevAsciiCode())
 783                         if self.allmarked:
 784                                 self.deleteAllChars()
 785                                 self.allmarked = False
 786                         self.insertChar(newChar, self.marked_pos, False)
 787                         self.marked_pos += 1
 788                 elif key in KEY_NUMBERS:
 789                         owr = self.lastKey == getKeyNumber(key)
 790                         newChar = self.getKey(getKeyNumber(key))
 791                         if self.allmarked:
 792                                 self.deleteAllChars()
 793                                 self.allmarked = False
 794                         self.insertChar(newChar, self.marked_pos, owr)
 795                 elif key == KEY_TIMEOUT:
 796                         self.timeout()
 797                         if self.help_window:
 798                                 self.help_window.update(self)
 799                         return
 800
 801                 if self.help_window:
 802                         self.help_window.update(self)
 803                 self.validateMarker()
 804                 self.changed()
 805
 806         def nextFunc(self):
 807                 self.marked_pos += 1
 808                 self.validateMarker()
 809                 self.changed()
 810
 811         def getValue(self):
 812                 return self.text.encode("utf-8")
 813
 814         def setValue(self, val):
 815                 try:
 816                         self.text = val.decode("utf-8")
 817                 except UnicodeDecodeError:
 818                         self.text = val.decode("utf-8", "ignore")
 819                         print "Broken UTF8!"
 820
 821         value = property(getValue, setValue)
 822         _value = property(getValue, setValue)
 823
 824         def getText(self):
 825                 return self.text.encode("utf-8")
 826
 827         def getMulti(self, selected):
 828                 if self.visible_width:
 829                         if self.allmarked:
 830                                 mark = range(0, min(self.visible_width, len(self.text)))
 831                         else:
 832                                 mark = [self.marked_pos-self.offset]
 833                         return ("mtext"[1-selected:], self.text[self.offset:self.offset+self.visible_width].encode("utf-8")+" ", mark)
 834                 else:
 835                         if self.allmarked:
 836                                 mark = range(0, len(self.text))
 837                         else:
 838                                 mark = [self.marked_pos]
 839                         return ("mtext"[1-selected:], self.text.encode("utf-8")+" ", mark)
 840
 841         def onSelect(self, session):
 842                 self.allmarked = (self.value != "")
 843                 if session is not None:
 844                         from Screens.NumericalTextInputHelpDialog import NumericalTextInputHelpDialog
 845                         self.help_window = session.instantiateDialog(NumericalTextInputHelpDialog, self)
 846                         self.help_window.show()
 847
 848         def onDeselect(self, session):
 849                 self.marked_pos = 0
 850                 self.offset = 0
 851                 if self.help_window:
 852                         session.deleteDialog(self.help_window)
 853                         self.help_window = None
 854
 855         def getHTML(self, id):
 856                 return '<input type="text" name="' + id + '" value="' + self.value + '" /><br>\n'
 857
 858         def unsafeAssign(self, value):
 859                 self.value = str(value)
 860
 861 class ConfigPassword(ConfigText):
 862         def __init__(self, default = "", fixed_size = False, visible_width = False, censor = "*"):
 863                 ConfigText.__init__(self, default = default, fixed_size = fixed_size, visible_width = visible_width)
 864                 self.censor_char = censor
 865                 self.hidden = True
 866
 867         def getMulti(self, selected):
 868                 mtext, text, mark = ConfigText.getMulti(self, selected)
 869                 if self.hidden:
 870                         text = len(text) * self.censor_char
 871                 return (mtext, text, mark)
 872
 873         def onSelect(self, session):
 874                 ConfigText.onSelect(self, session)
 875                 self.hidden = False
 876
 877         def onDeselect(self, session):
 878                 ConfigText.onDeselect(self, session)
 879                 self.hidden = True
 880
 881 class ConfigNumber(ConfigText):
 882         def __init__(self, default = 0):
 883                 ConfigText.__init__(self, str(default), fixed_size = False)
 884
 885         def getValue(self):
 886                 return int(self.text)
 887
 888         def setValue(self, val):
 889                 self.text = str(val)
 890
 891         value = property(getValue, setValue)
 892         _value = property(getValue, setValue)
 893
 894         def conform(self):
 895                 pos = len(self.text) - self.marked_pos
 896                 self.text = self.text.lstrip("0")
 897                 if self.text == "":
 898                         self.text = "0"
 899                 if pos > len(self.text):
 900                         self.marked_pos = 0
 901                 else:
 902                         self.marked_pos = len(self.text) - pos
 903
 904         def handleKey(self, key):
 905                 if key in KEY_NUMBERS or key == KEY_ASCII:
 906                         if key == KEY_ASCII:
 907                                 ascii = getPrevAsciiCode()
 908                                 if not (48 <= ascii <= 57):
 909                                         return
 910                         else:
 911                                 ascii = getKeyNumber(key) + 48
 912                         newChar = unichr(ascii)
 913                         if self.allmarked:
 914                                 self.deleteAllChars()
 915                                 self.allmarked = False
 916                         self.insertChar(newChar, self.marked_pos, False)
 917                         self.marked_pos += 1
 918                 else:
 919                         ConfigText.handleKey(self, key)
 920                 self.conform()
 921
 922         def onSelect(self, session):
 923                 self.allmarked = (self.value != "")
 924
 925         def onDeselect(self, session):
 926                 self.marked_pos = 0
 927                 self.offset = 0
 928
 929 class ConfigSearchText(ConfigText):
 930         def __init__(self, default = "", fixed_size = False, visible_width = False):
 931                 ConfigText.__init__(self, default = default, fixed_size = fixed_size, visible_width = visible_width)
 932                 NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False, search = True)
 933
 934 class ConfigDirectory(ConfigText):
 935         def __init__(self, default="", visible_width=60):
 936                 ConfigText.__init__(self, default, fixed_size = True, visible_width = visible_width)
 937         def handleKey(self, key):
 938                 pass
 939         def getValue(self):
 940                 if self.text == "":
 941                         return None
 942                 else:
 943                         return ConfigText.getValue(self)
 944         def setValue(self, val):
 945                 if val == None:
 946                         val = ""
 947                 ConfigText.setValue(self, val)
 948         def getMulti(self, selected):
 949                 if self.text == "":
 950                         return ("mtext"[1-selected:], _("List of Storage Devices"), range(0))
 951                 else:
 952                         return ConfigText.getMulti(self, selected)
 953
 954 # a slider.
 955 class ConfigSlider(ConfigElement):
 956         def __init__(self, default = 0, increment = 1, limits = (0, 100)):
 957                 ConfigElement.__init__(self)
 958                 self.value = self.default = default
 959                 self.min = limits[0]
 960                 self.max = limits[1]
 961                 self.increment = increment
 962
 963         def checkValues(self):
 964                 if self.value < self.min:
 965                         self.value = self.min
 966
 967                 if self.value > self.max:
 968                         self.value = self.max
 969
 970         def handleKey(self, key):
 971                 if key == KEY_LEFT:
 972                         self.value -= self.increment
 973                 elif key == KEY_RIGHT:
 974                         self.value += self.increment
 975                 elif key == KEY_HOME:
 976                         self.value = self.min
 977                 elif key == KEY_END:
 978                         self.value = self.max
 979                 else:
 980                         return
 981                 self.checkValues()
 982
 983         def getText(self):
 984                 return "%d / %d" % (self.value, self.max)
 985
 986         def getMulti(self, selected):
 987                 self.checkValues()
 988                 return ("slider", self.value, self.max)
 989
 990         def fromstring(self, value):
 991                 return int(value)
 992
 993 # a satlist. in fact, it's a ConfigSelection.
 994 class ConfigSatlist(ConfigSelection):
 995         def __init__(self, list, default = None):
 996                 if default is not None:
 997                         default = str(default)
 998                 ConfigSelection.__init__(self, choices = [(str(orbpos), desc) for (orbpos, desc, flags) in list], default = default)
 999
1000         def getOrbitalPosition(self):
1001                 if self.value == "":
1002                         return None
1003                 return int(self.value)
1004
1005         orbital_position = property(getOrbitalPosition)
1006
1007 class ConfigSet(ConfigElement):
1008         def __init__(self, choices, default = []):
1009                 ConfigElement.__init__(self)
1010                 self.choices = []
1011                 self.description = {}
1012                 if isinstance(choices, list):
1013                         choices.sort()
1014                         for x in choices:
1015                                 if isinstance(x, tuple):
1016                                         self.choices.append(x[0])
1017                                         self.description[x[0]] = str(x[1])
1018                                 else:
1019                                         self.choices.append(x)
1020                                         self.description[x] = str(x)
1021                 else:
1022                         assert False, "ConfigSet choices must be a list!"
1023                 if len(self.choices) == 0:
1024                         self.choices = [""]
1025                         self.description[""] = ""
1026                 if default is None:
1027                         default = []
1028                 self.pos = -1
1029                 default.sort()
1030                 self.default = default
1031                 self.value = default+[]
1032
1033         def toggleChoice(self, choice):
1034                 if choice in self.value:
1035                         self.value.remove(choice)
1036                 else:
1037                         self.value.append(choice)
1038                         self.value.sort()
1039
1040         def handleKey(self, key):
1041                 if key in KEY_NUMBERS + [KEY_DELETE, KEY_BACKSPACE]:
1042                         if self.pos != -1:
1043                                 self.toggleChoice(self.choices[self.pos])
1044                 elif key == KEY_LEFT:
1045                         self.pos -= 1
1046                         if self.pos < -1:
1047                             self.pos = len(self.choices)-1
1048                 elif key == KEY_RIGHT:
1049                         self.pos += 1
1050                         if self.pos >= len(self.choices):
1051                             self.pos = -1
1052                 elif key in [KEY_HOME, KEY_END]:
1053                         self.pos = -1
1054
1055         def genString(self, lst):
1056                 res = ""
1057                 for x in lst:
1058                         res += self.description[x]+" "
1059                 return res
1060
1061         def getText(self):
1062                 return self.genString(self.value)
1063
1064         def getMulti(self, selected):
1065                 if not selected or self.pos == -1:
1066                         return ("text", self.genString(self.value))
1067                 else:
1068                         tmp = self.value+[]
1069                         ch = self.choices[self.pos]
1070                         mem = ch in self.value
1071                         if not mem:
1072                                 tmp.append(ch)
1073                                 tmp.sort()
1074                         ind = tmp.index(ch)
1075                         val1 = self.genString(tmp[:ind])
1076                         val2 = " "+self.genString(tmp[ind+1:])
1077                         if mem:
1078                                 chstr = " "+self.description[ch]+" "
1079                         else:
1080                                 chstr = "("+self.description[ch]+")"
1081                         return ("mtext", val1+chstr+val2, range(len(val1),len(val1)+len(chstr)))
1082
1083         def onDeselect(self, session):
1084                 self.pos = -1
1085                 self.changed()
1086
1087         def tostring(self, value):
1088                 return str(value)
1089
1090         def fromstring(self, val):
1091                 return eval(val)
1092
1093 class ConfigLocations(ConfigElement):
1094         def __init__(self, default = [], visible_width = False):
1095                 ConfigElement.__init__(self)
1096                 self.visible_width = visible_width
1097                 self.pos = -1
1098                 self.default = default
1099                 self.locations = []
1100                 self.mountpoints = []
1101                 harddiskmanager.on_partition_list_change.append(self.mountpointsChanged)
1102
1103         def setValue(self, value):
1104                 loc = [x[0] for x in self.locations if x[3]]
1105                 add = [x for x in value if not x in loc]
1106                 diff = add + [x for x in loc if not x in value]
1107                 self.locations = [x for x in self.locations if not x[0] in diff] + [[x, self.getMountpoint(x), True, True] for x in add]
1108                 self.locations.sort(key = lambda x: x[0])
1109                 self.changed()
1110
1111         def getValue(self):
1112                 self.checkChangedMountpoints()
1113                 for x in self.locations:
1114                         x[3] = x[2]
1115                 return [x[0] for x in self.locations if x[3]]
1116
1117         value = property(getValue, setValue)
1118
1119         def tostring(self, value):
1120                 return str(value)
1121
1122         def fromstring(self, val):
1123                 return eval(val)
1124
1125         def load(self):
1126                 sv = self.saved_value
1127                 if sv is None:
1128                         tmp = self.default
1129                 else:
1130                         tmp = self.fromstring(sv)
1131                 self.locations = [[x, None, False, False] for x in tmp]
1132                 self.refreshMountpoints()
1133                 for x in self.locations:
1134                         if os.path.exists(x[0]):
1135                                 x[1] = self.getMountpoint(x[0])
1136                                 x[2] = True
1137
1138         def save(self):
1139                 if self.save_disabled or self.locations == []:
1140                         self.saved_value = None
1141                 else:
1142                         self.saved_value = self.tostring([x[0] for x in self.locations])
1143
1144         def isChanged(self):
1145                 sv = self.saved_value
1146                 if val is None and self.locations == []:
1147                         return False
1148                 return self.tostring([x[0] for x in self.locations]) != sv
1149
1150         def mountpointsChanged(self, action, dev):
1151                 print "Mounts changed: ", action, dev
1152                 mp = dev.mountpoint+"/"
1153                 if action == "add":
1154                         self.addedMount(mp)
1155                 elif action == "remove":
1156                         self.removedMount(mp)
1157                 self.refreshMountpoints()
1158
1159         def addedMount(self, mp):
1160                 for x in self.locations:
1161                         if x[1] == mp:
1162                                 x[2] = True
1163                         elif x[1] == None and os.path.exists(x[0]):
1164                                 x[1] = self.getMountpoint(x[0])
1165                                 x[2] = True
1166
1167         def removedMount(self, mp):
1168                 for x in self.locations:
1169                         if x[1] == mp:
1170                                 x[2] = False
1171
1172         def refreshMountpoints(self):
1173                 self.mountpoints = [p.mountpoint + "/" for p in harddiskmanager.getMountedPartitions() if p.mountpoint != "/"]
1174                 self.mountpoints.sort(key = lambda x: -len(x))
1175
1176         def checkChangedMountpoints(self):
1177                 oldmounts = self.mountpoints
1178                 self.refreshMountpoints()
1179                 if oldmounts == self.mountpoints:
1180                         return
1181                 for x in oldmounts:
1182                         if not x in self.mountpoints:
1183                                 self.removedMount(x)
1184                 for x in self.mountpoints:
1185                         if not x in oldmounts:
1186                                 self.addedMount(x)
1187
1188         def getMountpoint(self, file):
1189                 file = os.path.realpath(file)+"/"
1190                 for m in self.mountpoints:
1191                         if file.startswith(m):
1192                                 return m
1193                 return None
1194
1195         def handleKey(self, key):
1196                 if key == KEY_LEFT:
1197                         self.pos -= 1
1198                         if self.pos < -1:
1199                             self.pos = len(self.value)-1
1200                 elif key == KEY_RIGHT:
1201                         self.pos += 1
1202                         if self.pos >= len(self.value):
1203                             self.pos = -1
1204                 elif key in [KEY_HOME, KEY_END]:
1205                         self.pos = -1
1206
1207         def getText(self):
1208                 return " ".join(self.value)
1209
1210         def getMulti(self, selected):
1211                 if not selected:
1212                         valstr = " ".join(self.value)
1213                         if self.visible_width and len(valstr) > self.visible_width:
1214                                 return ("text", valstr[0:self.visible_width])
1215                         else:
1216                                 return ("text", valstr)
1217                 else:
1218                         i = 0
1219                         valstr = ""
1220                         ind1 = 0
1221                         ind2 = 0
1222                         for val in self.value:
1223                                 if i == self.pos:
1224                                         ind1 = len(valstr)
1225                                 valstr += str(val)+" "
1226                                 if i == self.pos:
1227                                         ind2 = len(valstr)
1228                                 i += 1
1229                         if self.visible_width and len(valstr) > self.visible_width:
1230                                 if ind1+1 < self.visible_width/2:
1231                                         off = 0
1232                                 else:
1233                                         off = min(ind1+1-self.visible_width/2, len(valstr)-self.visible_width)
1234                                 return ("mtext", valstr[off:off+self.visible_width], range(ind1-off,ind2-off))
1235                         else:
1236                                 return ("mtext", valstr, range(ind1,ind2))
1237
1238         def onDeselect(self, session):
1239                 self.pos = -1
1240
1241 # nothing.
1242 class ConfigNothing(ConfigSelection):
1243         def __init__(self):
1244                 ConfigSelection.__init__(self, choices = [""])
1245
1246 # until here, 'saved_value' always had to be a *string*.
1247 # now, in ConfigSubsection, and only there, saved_value
1248 # is a dict, essentially forming a tree.
1249 #
1250 # config.foo.bar=True
1251 # config.foobar=False
1252 #
1253 # turns into:
1254 # config.saved_value == {"foo": {"bar": "True"}, "foobar": "False"}
1255 #
1256
1257
1258 class ConfigSubsectionContent(object):
1259         pass
1260
1261 # we store a backup of the loaded configuration
1262 # data in self.stored_values, to be able to deploy
1263 # them when a new config element will be added,
1264 # so non-default values are instantly available
1265
1266 # A list, for example:
1267 # config.dipswitches = ConfigSubList()
1268 # config.dipswitches.append(ConfigYesNo())
1269 # config.dipswitches.append(ConfigYesNo())
1270 # config.dipswitches.append(ConfigYesNo())
1271 class ConfigSubList(list, object):
1272         def __init__(self):
1273                 object.__init__(self)
1274                 list.__init__(self)
1275                 self.stored_values = {}
1276
1277         def save(self):
1278                 for x in self:
1279                         x.save()
1280
1281         def load(self):
1282                 for x in self:
1283                         x.load()
1284
1285         def getSavedValue(self):
1286                 res = {}
1287                 for i in range(len(self)):
1288                         sv = self[i].saved_value
1289                         if sv is not None:
1290                                 res[str(i)] = sv
1291                 return res
1292
1293         def setSavedValue(self, values):
1294                 self.stored_values = dict(values)
1295                 for (key, val) in self.stored_values.items():
1296                         if int(key) < len(self):
1297                                 self[int(key)].saved_value = val
1298
1299         saved_value = property(getSavedValue, setSavedValue)
1300
1301         def append(self, item):
1302                 i = str(len(self))
1303                 list.append(self, item)
1304                 if i in self.stored_values:
1305                         item.saved_value = self.stored_values[i]
1306                         item.load()
1307
1308         def dict(self):
1309                 res = dict()
1310                 for index in range(len(self)):
1311                         res[str(index)] = self[index]
1312                 return res
1313
1314 # same as ConfigSubList, just as a dictionary.
1315 # care must be taken that the 'key' has a proper
1316 # str() method, because it will be used in the config
1317 # file.
1318 class ConfigSubDict(dict, object):
1319         def __init__(self):
1320                 object.__init__(self)
1321                 dict.__init__(self)
1322                 self.stored_values = {}
1323
1324         def save(self):
1325                 for x in self.values():
1326                         x.save()
1327
1328         def load(self):
1329                 for x in self.values():
1330                         x.load()
1331
1332         def getSavedValue(self):
1333                 res = {}
1334                 for (key, val) in self.items():
1335                         sv = val.saved_value
1336                         if sv is not None:
1337                                 res[str(key)] = sv
1338                 return res
1339
1340         def setSavedValue(self, values):
1341                 self.stored_values = dict(values)
1342                 for (key, val) in self.items():
1343                         if str(key) in self.stored_values:
1344                                 val = self.stored_values[str(key)]
1345
1346         saved_value = property(getSavedValue, setSavedValue)
1347
1348         def __setitem__(self, key, item):
1349                 dict.__setitem__(self, key, item)
1350                 if str(key) in self.stored_values:
1351                         item.saved_value = self.stored_values[str(key)]
1352                         item.load()
1353
1354         def dict(self):
1355                 return self
1356
1357 # Like the classes above, just with a more "native"
1358 # syntax.
1359 #
1360 # some evil stuff must be done to allow instant
1361 # loading of added elements. this is why this class
1362 # is so complex.
1363 #
1364 # we need the 'content' because we overwrite
1365 # __setattr__.
1366 # If you don't understand this, try adding
1367 # __setattr__ to a usual exisiting class and you will.
1368 class ConfigSubsection(object):
1369         def __init__(self):
1370                 object.__init__(self)
1371                 self.__dict__["content"] = ConfigSubsectionContent()
1372                 self.content.items = { }
1373                 self.content.stored_values = { }
1374
1375         def __setattr__(self, name, value):
1376                 if name == "saved_value":
1377                         return self.setSavedValue(value)
1378                 assert isinstance(value, ConfigSubsection) or isinstance(value, ConfigElement) or isinstance(value, ConfigSubList) or isinstance(value, ConfigSubDict), "ConfigSubsections can only store ConfigSubsections, ConfigSubLists, ConfigSubDicts or ConfigElements"
1379                 self.content.items[name] = value
1380                 if name in self.content.stored_values:
1381                         #print "ok, now we have a new item,", name, "and have the following value for it:", self.content.stored_values[name]
1382                         value.saved_value = self.content.stored_values[name]
1383                         value.load()
1384
1385         def __getattr__(self, name):
1386                 return self.content.items[name]
1387
1388         def getSavedValue(self):
1389                 res = self.content.stored_values
1390                 for (key, val) in self.content.items.items():
1391                         sv = val.saved_value
1392                         if sv is not None:
1393                                 res[key] = sv
1394                         elif key in res:
1395                                 del res[key]
1396                 return res
1397
1398         def setSavedValue(self, values):
1399                 values = dict(values)
1400
1401                 self.content.stored_values = values
1402
1403                 for (key, val) in self.content.items.items():
1404                         if key in values:
1405                                 val.saved_value = values[key]
1406
1407         saved_value = property(getSavedValue, setSavedValue)
1408
1409         def save(self):
1410                 for x in self.content.items.values():
1411                         x.save()
1412
1413         def load(self):
1414                 for x in self.content.items.values():
1415                         x.load()
1416
1417         def dict(self):
1418                 return self.content.items
1419
1420 # the root config object, which also can "pickle" (=serialize)
1421 # down the whole config tree.
1422 #
1423 # we try to keep non-existing config entries, to apply them whenever
1424 # a new config entry is added to a subsection
1425 # also, non-existing config entries will be saved, so they won't be
1426 # lost when a config entry disappears.
1427 class Config(ConfigSubsection):
1428         def __init__(self):
1429                 ConfigSubsection.__init__(self)
1430
1431         def pickle_this(self, prefix, topickle, result):
1432                 for (key, val) in topickle.items():
1433                         name = prefix + "." + key
1434
1435                         if isinstance(val, dict):
1436                                 self.pickle_this(name, val, result)
1437                         elif isinstance(val, tuple):
1438                                 result.append(name + "=" + val[0]) # + " ; " + val[1])
1439                         else:
1440                                 result.append(name + "=" + val)
1441
1442         def pickle(self):
1443                 result = [ ]
1444                 self.pickle_this("config", self.saved_value, result)
1445                 return '\n'.join(result) + "\n"
1446
1447         def unpickle(self, lines):
1448                 tree = { }
1449                 for l in lines:
1450                         if not len(l) or l[0] == '#':
1451                                 continue
1452
1453                         n = l.find('=')
1454                         val = l[n+1:].strip()
1455
1456                         names = l[:n].split('.')
1457 #                       if val.find(' ') != -1:
1458 #                               val = val[:val.find(' ')]
1459
1460                         base = tree
1461
1462                         for n in names[:-1]:
1463                                 base = base.setdefault(n, {})
1464
1465                         base[names[-1]] = val
1466
1467                 # we inherit from ConfigSubsection, so ...
1468                 #object.__setattr__(self, "saved_value", tree["config"])
1469                 if "config" in tree:
1470                         self.setSavedValue(tree["config"])
1471
1472         def saveToFile(self, filename):
1473                 f = open(filename, "w")
1474                 f.write(self.pickle())
1475                 f.close()
1476
1477         def loadFromFile(self, filename):
1478                 f = open(filename, "r")
1479                 self.unpickle(f.readlines())
1480                 f.close()
1481
1482 config = Config()
1483 config.misc = ConfigSubsection()
1484
1485 class ConfigFile:
1486         CONFIG_FILE = resolveFilename(SCOPE_CONFIG, "settings")
1487
1488         def load(self):
1489                 try:
1490                         config.loadFromFile(self.CONFIG_FILE)
1491                 except IOError, e:
1492                         print "unable to load config (%s), assuming defaults..." % str(e)
1493
1494         def save(self):
1495 #               config.save()
1496                 config.saveToFile(self.CONFIG_FILE)
1497
1498         def __resolveValue(self, pickles, cmap):
1499                 if cmap.has_key(pickles[0]):
1500                         if len(pickles) > 1:
1501                                 return self.__resolveValue(pickles[1:], cmap[pickles[0]].dict())
1502                         else:
1503                                 return str(cmap[pickles[0]].value)
1504                 return None
1505
1506         def getResolvedKey(self, key):
1507                 names = key.split('.')
1508                 if len(names) > 1:
1509                         if names[0] == "config":
1510                                 ret=self.__resolveValue(names[1:], config.content.items)
1511                                 if ret and len(ret):
1512                                         return ret
1513                 print "getResolvedKey", key, "failed !! (Typo??)"
1514                 return ""
1515
1516 def NoSave(element):
1517         element.disableSave()
1518         return element
1519
1520 configfile = ConfigFile()
1521
1522 configfile.load()
1523
1524 def getConfigListEntry(*args):
1525         assert len(args) > 1, "getConfigListEntry needs a minimum of two arguments (descr, configElement)"
1526         return args
1527
1528 def updateConfigElement(element, newelement):
1529         newelement.value = element.value
1530         return newelement
1531
1532 #def _(x):
1533 #       return x
1534 #
1535 #config.bla = ConfigSubsection()
1536 #config.bla.test = ConfigYesNo()
1537 #config.nim = ConfigSubList()
1538 #config.nim.append(ConfigSubsection())
1539 #config.nim[0].bla = ConfigYesNo()
1540 #config.nim.append(ConfigSubsection())
1541 #config.nim[1].bla = ConfigYesNo()
1542 #config.nim[1].blub = ConfigYesNo()
1543 #config.arg = ConfigSubDict()
1544 #config.arg["Hello"] = ConfigYesNo()
1545 #
1546 #config.arg["Hello"].handleKey(KEY_RIGHT)
1547 #config.arg["Hello"].handleKey(KEY_RIGHT)
1548 #
1549 ##config.saved_value
1550 #
1551 ##configfile.save()
1552 #config.save()
1553 #print config.pickle()