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.last_value = None
  35                 self.save_disabled = False
  36                 self.notifiers = []
  37                 self.notifiers_final = []
  38                 self.enabled = True
  39                 self.callNotifiersOnSaveAndCancel = False
  40
  41         # you need to override this to do input validation
  42         def setValue(self, value):
  43                 self._value = value
  44                 self.changed()
  45
  46         def getValue(self):
  47                 return self._value
  48
  49         value = property(getValue, setValue)
  50
  51         # you need to override this if self.value is not a string
  52         def fromstring(self, value):
  53                 return value
  54
  55         # you can overide this for fancy default handling
  56         def load(self):
  57                 sv = self.saved_value
  58                 if sv is None:
  59                         self.value = self.default
  60                 else:
  61                         self.value = self.fromstring(sv)
  62
  63         def tostring(self, value):
  64                 return str(value)
  65
  66         # you need to override this if str(self.value) doesn't work
  67         def save(self):
  68                 if self.save_disabled or self.value == self.default:
  69                         self.saved_value = None
  70                 else:
  71                         self.saved_value = self.tostring(self.value)
  72                 if self.callNotifiersOnSaveAndCancel:
  73                         self.changed()
  74
  75         def cancel(self):
  76                 self.load()
  77                 if self.callNotifiersOnSaveAndCancel:
  78                         self.changed()
  79
  80         def isChanged(self):
  81                 sv = self.saved_value
  82                 if sv is None and self.value == self.default:
  83                         return False
  84                 return self.tostring(self.value) != sv
  85
  86         def changed(self):
  87                 for x in self.notifiers:
  88                         x(self)
  89
  90         def changedFinal(self):
  91                 for x in self.notifiers_final:
  92                         x(self)
  93
  94         def addNotifier(self, notifier, initial_call = True, immediate_feedback = True):
  95                 assert callable(notifier), "notifiers must be callable"
  96                 if immediate_feedback:
  97                         self.notifiers.append(notifier)
  98                 else:
  99                         self.notifiers_final.append(notifier)
 100                 # CHECKME:
 101                 # do we want to call the notifier
 102                 #  - at all when adding it? (yes, though optional)
 103                 #  - when the default is active? (yes)
 104                 #  - when no value *yet* has been set,
 105                 #    because no config has ever been read (currently yes)
 106                 #    (though that's not so easy to detect.
 107                 #     the entry could just be new.)
 108                 if initial_call:
 109                         notifier(self)
 110
 111         def disableSave(self):
 112                 self.save_disabled = True
 113
 114         def __call__(self, selected):
 115                 return self.getMulti(selected)
 116
 117         def onSelect(self, session):
 118                 pass
 119
 120         def onDeselect(self, session):
 121                 if not self.last_value == self.value:
 122                         self.changedFinal()
 123                         self.last_value = self.value
 124
 125 KEY_LEFT = 0
 126 KEY_RIGHT = 1
 127 KEY_OK = 2
 128 KEY_DELETE = 3
 129 KEY_BACKSPACE = 4
 130 KEY_HOME = 5
 131 KEY_END = 6
 132 KEY_TOGGLEOW = 7
 133 KEY_ASCII = 8
 134 KEY_TIMEOUT = 9
 135 KEY_NUMBERS = range(12, 12+10)
 136 KEY_0 = 12
 137 KEY_9 = 12+9
 138
 139 def getKeyNumber(key):
 140         assert key in KEY_NUMBERS
 141         return key - KEY_0
 142
 143 #
 144 # ConfigSelection is a "one of.."-type.
 145 # it has the "choices", usually a list, which contains
 146 # (id, desc)-tuples (or just only the ids, in case the id
 147 # will be used as description)
 148 #
 149 # all ids MUST be plain strings.
 150 #
 151 class ConfigSelection(ConfigElement):
 152         def __init__(self, choices, default = None):
 153                 ConfigElement.__init__(self)
 154                 self._value = None
 155                 self.setChoices(choices, default)
 156                 self.last_value = self._value
 157
 158         def setChoices(self, choices, default = None):
 159                 self.choices = []
 160                 self.description = {}
 161
 162                 if isinstance(choices, list):
 163                         for x in choices:
 164                                 if isinstance(x, tuple):
 165                                         self.choices.append(x[0])
 166                                         self.description[x[0]] = x[1]
 167                                 else:
 168                                         self.choices.append(x)
 169                                         self.description[x] = x
 170                 elif isinstance(choices, dict):
 171                         for (key, val) in choices.items():
 172                                 self.choices.append(key)
 173                                 self.description[key] = val
 174                 else:
 175                         assert False, "ConfigSelection choices must be dict or list!"
 176
 177                 #assert len(self.choices), "you can't have an empty configselection"
 178                 if len(self.choices) == 0:
 179                         self.choices = [""]
 180                         self.description[""] = ""
 181
 182                 if default is None:
 183                         default = self.choices[0]
 184
 185                 assert default in self.choices, "default must be in choice list, but " + repr(default) + " is not!"
 186 #               for x in self.choices:
 187 #                       assert isinstance(x, str), "ConfigSelection choices must be strings"
 188                 self.default = default
 189
 190                 if self.value == None or not self.value in self.choices:
 191                         self.value = default
 192
 193         def setValue(self, value):
 194                 if value in self.choices:
 195                         self._value = value
 196                 else:
 197                         self._value = self.default
 198
 199                 self.changed()
 200
 201         def tostring(self, val):
 202                 return val
 203
 204         def getValue(self):
 205                 return self._value
 206
 207         def setCurrentText(self, text):
 208                 i = self.choices.index(self.value)
 209                 del self.description[self.choices[i]]
 210                 self.choices[i] = text
 211                 self.description[text] = text
 212                 self._value = text
 213
 214         value = property(getValue, setValue)
 215
 216         def getIndex(self):
 217                 return self.choices.index(self.value)
 218
 219         index = property(getIndex)
 220
 221         # GUI
 222         def handleKey(self, key):
 223                 nchoices = len(self.choices)
 224                 i = self.choices.index(self.value)
 225                 if key == KEY_LEFT:
 226                         self.value = self.choices[(i + nchoices - 1) % nchoices]
 227                 elif key == KEY_RIGHT:
 228                         self.value = self.choices[(i + 1) % nchoices]
 229                 elif key == KEY_HOME:
 230                         self.value = self.choices[0]
 231                 elif key == KEY_END:
 232                         self.value = self.choices[nchoices - 1]
 233
 234         def selectNext(self):
 235                 nchoices = len(self.choices)
 236                 i = self.choices.index(self.value)
 237                 self.value = self.choices[(i + 1) % nchoices]
 238
 239         def getText(self):
 240                 descr = self.description[self.value]
 241                 if len(descr):
 242                         return _(descr)
 243                 return descr
 244
 245         def getMulti(self, selected):
 246                 descr = self.description[self.value]
 247                 if len(descr):
 248                         return ("text", _(descr))
 249                 return ("text", descr)
 250
 251         # HTML
 252         def getHTML(self, id):
 253                 res = ""
 254                 for v in self.choices:
 255                         if self.value == v:
 256                                 checked = 'checked="checked" '
 257                         else:
 258                                 checked = ''
 259                         res += '<input type="radio" name="' + id + '" ' + checked + 'value="' + v + '">' + self.description[v] + "</input></br>\n"
 260                 return res;
 261
 262         def unsafeAssign(self, value):
 263                 # setValue does check if value is in choices. This is safe enough.
 264                 self.value = value
 265
 266 # a binary decision.
 267 #
 268 # several customized versions exist for different
 269 # descriptions.
 270 #
 271 class ConfigBoolean(ConfigElement):
 272         def __init__(self, default = False, descriptions = {False: "false", True: "true"}):
 273                 ConfigElement.__init__(self)
 274                 self.descriptions = descriptions
 275                 self.value = self.last_value = self.default = default
 276
 277         def handleKey(self, key):
 278                 if key in [KEY_LEFT, KEY_RIGHT]:
 279                         self.value = not self.value
 280                 elif key == KEY_HOME:
 281                         self.value = False
 282                 elif key == KEY_END:
 283                         self.value = True
 284
 285         def getText(self):
 286                 descr = self.descriptions[self.value]
 287                 if len(descr):
 288                         return _(descr)
 289                 return descr
 290
 291         def getMulti(self, selected):
 292                 descr = self.descriptions[self.value]
 293                 if len(descr):
 294                         return ("text", _(descr))
 295                 return ("text", descr)
 296
 297         def tostring(self, value):
 298                 if not value:
 299                         return "false"
 300                 else:
 301                         return "true"
 302
 303         def fromstring(self, val):
 304                 if val == "true":
 305                         return True
 306                 else:
 307                         return False
 308
 309         def getHTML(self, id):
 310                 if self.value:
 311                         checked = ' checked="checked"'
 312                 else:
 313                         checked = ''
 314                 return '<input type="checkbox" name="' + id + '" value="1" ' + checked + " />"
 315
 316         # this is FLAWED. and must be fixed.
 317         def unsafeAssign(self, value):
 318                 if value == "1":
 319                         self.value = True
 320                 else:
 321                         self.value = False
 322
 323         def onDeselect(self, session):
 324                 if not self.last_value == self.value:
 325                         self.changedFinal()
 326                         self.last_value = self.value
 327
 328 class ConfigYesNo(ConfigBoolean):
 329         def __init__(self, default = False):
 330                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("no"), True: _("yes")})
 331
 332 class ConfigOnOff(ConfigBoolean):
 333         def __init__(self, default = False):
 334                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("off"), True: _("on")})
 335
 336 class ConfigEnableDisable(ConfigBoolean):
 337         def __init__(self, default = False):
 338                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("disable"), True: _("enable")})
 339
 340 class ConfigDateTime(ConfigElement):
 341         def __init__(self, default, formatstring, increment = 86400):
 342                 ConfigElement.__init__(self)
 343                 self.increment = increment
 344                 self.formatstring = formatstring
 345                 self.value = self.last_value = self.default = int(default)
 346
 347         def handleKey(self, key):
 348                 if key == KEY_LEFT:
 349                         self.value = self.value - self.increment
 350                 elif key == KEY_RIGHT:
 351                         self.value = self.value + self.increment
 352                 elif key == KEY_HOME or key == KEY_END:
 353                         self.value = self.default
 354
 355         def getText(self):
 356                 return time.strftime(self.formatstring, time.localtime(self.value))
 357
 358         def getMulti(self, selected):
 359                 return ("text", time.strftime(self.formatstring, time.localtime(self.value)))
 360
 361         def fromstring(self, val):
 362                 return int(val)
 363
 364 # *THE* mighty config element class
 365 #
 366 # allows you to store/edit a sequence of values.
 367 # can be used for IP-addresses, dates, plain integers, ...
 368 # several helper exist to ease this up a bit.
 369 #
 370 class ConfigSequence(ConfigElement):
 371         def __init__(self, seperator, limits, censor_char = "", default = None):
 372                 ConfigElement.__init__(self)
 373                 assert isinstance(limits, list) and len(limits[0]) == 2, "limits must be [(min, max),...]-tuple-list"
 374                 assert censor_char == "" or len(censor_char) == 1, "censor char must be a single char (or \"\")"
 375                 #assert isinstance(default, list), "default must be a list"
 376                 #assert isinstance(default[0], int), "list must contain numbers"
 377                 #assert len(default) == len(limits), "length must match"
 378
 379                 self.marked_pos = 0
 380                 self.seperator = seperator
 381                 self.limits = limits
 382                 self.censor_char = censor_char
 383
 384                 self.default = default
 385                 self.value = copy.copy(default)
 386                 self.last_value = copy.copy(default)
 387
 388                 self.endNotifier = []
 389
 390         def validate(self):
 391                 max_pos = 0
 392                 num = 0
 393                 for i in self._value:
 394                         max_pos += len(str(self.limits[num][1]))
 395
 396                         if self._value[num] < self.limits[num][0]:
 397                                 self._value[num] = self.limits[num][0]
 398
 399                         if self._value[num] > self.limits[num][1]:
 400                                 self._value[num] = self.limits[num][1]
 401
 402                         num += 1
 403
 404                 if self.marked_pos >= max_pos:
 405                         for x in self.endNotifier:
 406                                 x(self)
 407                         self.marked_pos = max_pos - 1
 408
 409                 if self.marked_pos < 0:
 410                         self.marked_pos = 0
 411
 412         def validatePos(self):
 413                 if self.marked_pos < 0:
 414                         self.marked_pos = 0
 415
 416                 total_len = sum([len(str(x[1])) for x in self.limits])
 417
 418                 if self.marked_pos >= total_len:
 419                         self.marked_pos = total_len - 1
 420
 421         def addEndNotifier(self, notifier):
 422                 self.endNotifier.append(notifier)
 423
 424         def handleKey(self, key):
 425                 if key == KEY_LEFT:
 426                         self.marked_pos -= 1
 427                         self.validatePos()
 428
 429                 if key == KEY_RIGHT:
 430                         self.marked_pos += 1
 431                         self.validatePos()
 432
 433                 if key == KEY_HOME:
 434                         self.marked_pos = 0
 435                         self.validatePos()
 436
 437                 if key == KEY_END:
 438                         max_pos = 0
 439                         num = 0
 440                         for i in self._value:
 441                                 max_pos += len(str(self.limits[num][1]))
 442                                 num += 1
 443                         self.marked_pos = max_pos - 1
 444                         self.validatePos()
 445
 446                 if key in KEY_NUMBERS or key == KEY_ASCII:
 447                         if key == KEY_ASCII:
 448                                 code = getPrevAsciiCode()
 449                                 if code < 48 or code > 57:
 450                                         return
 451                                 number = code - 48
 452                         else:
 453                                 number = getKeyNumber(key)
 454
 455                         block_len = []
 456                         for x in self.limits:
 457                                 block_len.append(len(str(x[1])))
 458
 459                         total_len = sum(block_len)
 460
 461                         pos = 0
 462                         blocknumber = 0
 463                         block_len_total = [0, ]
 464                         for x in block_len:
 465                                 pos += block_len[blocknumber]
 466                                 block_len_total.append(pos)
 467                                 if pos - 1 >= self.marked_pos:
 468                                         pass
 469                                 else:
 470                                         blocknumber += 1
 471
 472                         # length of numberblock
 473                         number_len = len(str(self.limits[blocknumber][1]))
 474
 475                         # position in the block
 476                         posinblock = self.marked_pos - block_len_total[blocknumber]
 477
 478                         oldvalue = self._value[blocknumber]
 479                         olddec = oldvalue % 10 ** (number_len - posinblock) - (oldvalue % 10 ** (number_len - posinblock - 1))
 480                         newvalue = oldvalue - olddec + (10 ** (number_len - posinblock - 1) * number)
 481
 482                         self._value[blocknumber] = newvalue
 483                         self.marked_pos += 1
 484
 485                         self.validate()
 486                         self.changed()
 487
 488         def genText(self):
 489                 value = ""
 490                 mPos = self.marked_pos
 491                 num = 0;
 492                 for i in self._value:
 493                         if len(value):  #fixme no heading separator possible
 494                                 value += self.seperator
 495                                 if mPos >= len(value) - 1:
 496                                         mPos += 1
 497
 498                         if self.censor_char == "":
 499                                 value += ("%0" + str(len(str(self.limits[num][1]))) + "d") % i
 500                         else:
 501                                 value += (self.censor_char * len(str(self.limits[num][1])))
 502                         num += 1
 503                 return (value, mPos)
 504
 505         def getText(self):
 506                 (value, mPos) = self.genText()
 507                 return value
 508
 509         def getMulti(self, selected):
 510                 (value, mPos) = self.genText()
 511                         # only mark cursor when we are selected
 512                         # (this code is heavily ink optimized!)
 513                 if self.enabled:
 514                         return ("mtext"[1-selected:], value, [mPos])
 515                 else:
 516                         return ("text", value)
 517
 518         def tostring(self, val):
 519                 return self.seperator.join([self.saveSingle(x) for x in val])
 520
 521         def saveSingle(self, v):
 522                 return str(v)
 523
 524         def fromstring(self, value):
 525                 return [int(x) for x in value.split(self.seperator)]
 526
 527         def onDeselect(self, session):
 528                 if not self.last_value == self._value:
 529                         self.changedFinal()
 530                         self.last_value = copy.copy(self._value)
 531
 532 class ConfigIP(ConfigSequence):
 533         def __init__(self, default, auto_jump = False):
 534                 ConfigSequence.__init__(self, seperator = ".", limits = [(0,255),(0,255),(0,255),(0,255)], default = default)
 535                 self.block_len = []
 536                 for x in self.limits:
 537                         self.block_len.append(len(str(x[1])))
 538                 self.marked_block = 0
 539                 self.overwrite = True
 540                 self.auto_jump = auto_jump
 541
 542         def handleKey(self, key):
 543
 544                 if key == KEY_LEFT:
 545                         if self.marked_block > 0:
 546                                 self.marked_block -= 1
 547                         self.overwrite = True
 548
 549                 if key == KEY_RIGHT:
 550                         if self.marked_block < len(self.limits)-1:
 551                                 self.marked_block += 1
 552                         self.overwrite = True
 553
 554                 if key == KEY_HOME:
 555                         self.marked_block = 0
 556                         self.overwrite = True
 557
 558                 if key == KEY_END:
 559                         self.marked_block = len(self.limits)-1
 560                         self.overwrite = True
 561
 562                 if key in KEY_NUMBERS or key == KEY_ASCII:
 563                         if key == KEY_ASCII:
 564                                 code = getPrevAsciiCode()
 565                                 if code < 48 or code > 57:
 566                                         return
 567                                 number = code - 48
 568                         else:
 569                                 number = getKeyNumber(key)
 570                         oldvalue = self._value[self.marked_block]
 571
 572                         if self.overwrite:
 573                                 self._value[self.marked_block] = number
 574                                 self.overwrite = False
 575                         else:
 576                                 oldvalue *= 10
 577                                 newvalue = oldvalue + number
 578                                 if self.auto_jump and newvalue > self.limits[self.marked_block][1] and self.marked_block < len(self.limits)-1:
 579                                         self.handleKey(KEY_RIGHT)
 580                                         self.handleKey(key)
 581                                         return
 582                                 else:
 583                                         self._value[self.marked_block] = newvalue
 584
 585                         if len(str(self._value[self.marked_block])) >= self.block_len[self.marked_block]:
 586                                 self.handleKey(KEY_RIGHT)
 587
 588                         self.validate()
 589                         self.changed()
 590
 591         def genText(self):
 592                 value = ""
 593                 block_strlen = []
 594                 for i in self._value:
 595                         block_strlen.append(len(str(i)))
 596                         if len(value):
 597                                 value += self.seperator
 598                         value += str(i)
 599                 leftPos = sum(block_strlen[:(self.marked_block)])+self.marked_block
 600                 rightPos = sum(block_strlen[:(self.marked_block+1)])+self.marked_block
 601                 mBlock = range(leftPos, rightPos)
 602                 return (value, mBlock)
 603
 604         def getMulti(self, selected):
 605                 (value, mBlock) = self.genText()
 606                 if self.enabled:
 607                         return ("mtext"[1-selected:], value, mBlock)
 608                 else:
 609                         return ("text", value)
 610
 611         def getHTML(self, id):
 612                 # we definitely don't want leading zeros
 613                 return '.'.join(["%d" % d for d in self.value])
 614
 615 class ConfigMAC(ConfigSequence):
 616         def __init__(self, default):
 617                 ConfigSequence.__init__(self, seperator = ":", limits = [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)], default = default)
 618
 619 class ConfigPosition(ConfigSequence):
 620         def __init__(self, default, args):
 621                 ConfigSequence.__init__(self, seperator = ",", limits = [(0,args[0]),(0,args[1]),(0,args[2]),(0,args[3])], default = default)
 622
 623 class ConfigClock(ConfigSequence):
 624         def __init__(self, default):
 625                 import time
 626                 t = time.localtime(default)
 627                 ConfigSequence.__init__(self, seperator = ":", limits = [(0,23),(0,59)], default = [t.tm_hour, t.tm_min])
 628
 629         def increment(self):
 630                 # Check if Minutes maxed out
 631                 if self._value[1] == 59:
 632                         # Increment Hour, reset Minutes
 633                         if self._value[0] < 23:
 634                                 self._value[0] += 1
 635                         else:
 636                                 self._value[0] = 0
 637                         self._value[1] = 0
 638                 else:
 639                         # Increment Minutes
 640                         self._value[1] += 1
 641                 # Trigger change
 642                 self.changed()
 643
 644         def decrement(self):
 645                 # Check if Minutes is minimum
 646                 if self._value[1] == 0:
 647                         # Decrement Hour, set Minutes to 59
 648                         if self._value[0] > 0:
 649                                 self._value[0] -= 1
 650                         else:
 651                                 self._value[0] = 23
 652                         self._value[1] = 59
 653                 else:
 654                         # Decrement Minutes
 655                         self._value[1] -= 1
 656                 # Trigger change
 657                 self.changed()
 658
 659 class ConfigInteger(ConfigSequence):
 660         def __init__(self, default, limits = (0, 9999999999)):
 661                 ConfigSequence.__init__(self, seperator = ":", limits = [limits], default = default)
 662
 663         # you need to override this to do input validation
 664         def setValue(self, value):
 665                 self._value = [value]
 666                 self.changed()
 667
 668         def getValue(self):
 669                 return self._value[0]
 670
 671         value = property(getValue, setValue)
 672
 673         def fromstring(self, value):
 674                 return int(value)
 675
 676         def tostring(self, value):
 677                 return str(value)
 678
 679 class ConfigPIN(ConfigInteger):
 680         def __init__(self, default, len = 4, censor = ""):
 681                 assert isinstance(default, int), "ConfigPIN default must be an integer"
 682                 if default == -1:
 683                         default = "aaaa"
 684                 ConfigSequence.__init__(self, seperator = ":", limits = [(0, (10**len)-1)], censor_char = censor, default = default)
 685                 self.len = len
 686
 687         def getLength(self):
 688                 return self.len
 689
 690 class ConfigFloat(ConfigSequence):
 691         def __init__(self, default, limits):
 692                 ConfigSequence.__init__(self, seperator = ".", limits = limits, default = default)
 693
 694         def getFloat(self):
 695                 return float(self.value[1] / float(self.limits[1][1] + 1) + self.value[0])
 696
 697         float = property(getFloat)
 698
 699 # an editable text...
 700 class ConfigText(ConfigElement, NumericalTextInput):
 701         def __init__(self, default = "", fixed_size = True, visible_width = False):
 702                 ConfigElement.__init__(self)
 703                 NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False)
 704
 705                 self.marked_pos = 0
 706                 self.allmarked = (default != "")
 707                 self.fixed_size = fixed_size
 708                 self.visible_width = visible_width
 709                 self.offset = 0
 710                 self.overwrite = fixed_size
 711                 self.help_window = None
 712                 self.value = self.last_value = self.default = default
 713
 714         def validateMarker(self):
 715                 if self.fixed_size:
 716                         if self.marked_pos > len(self.text)-1:
 717                                 self.marked_pos = len(self.text)-1
 718                 else:
 719                         if self.marked_pos > len(self.text):
 720                                 self.marked_pos = len(self.text)
 721                 if self.marked_pos < 0:
 722                         self.marked_pos = 0
 723                 if self.visible_width:
 724                         if self.marked_pos < self.offset:
 725                                 self.offset = self.marked_pos
 726                         if self.marked_pos >= self.offset + self.visible_width:
 727                                 if self.marked_pos == len(self.text):
 728                                         self.offset = self.marked_pos - self.visible_width
 729                                 else:
 730                                         self.offset = self.marked_pos - self.visible_width + 1
 731                         if self.offset > 0 and self.offset + self.visible_width > len(self.text):
 732                                 self.offset = max(0, len(self.text) - self.visible_width)
 733
 734         def insertChar(self, ch, pos, owr):
 735                 if owr or self.overwrite:
 736                         self.text = self.text[0:pos] + ch + self.text[pos + 1:]
 737                 elif self.fixed_size:
 738                         self.text = self.text[0:pos] + ch + self.text[pos:-1]
 739                 else:
 740                         self.text = self.text[0:pos] + ch + self.text[pos:]
 741
 742         def deleteChar(self, pos):
 743                 if not self.fixed_size:
 744                         self.text = self.text[0:pos] + self.text[pos + 1:]
 745                 elif self.overwrite:
 746                         self.text = self.text[0:pos] + " " + self.text[pos + 1:]
 747                 else:
 748                         self.text = self.text[0:pos] + self.text[pos + 1:] + " "
 749
 750         def deleteAllChars(self):
 751                 if self.fixed_size:
 752                         self.text = " " * len(self.text)
 753                 else:
 754                         self.text = ""
 755                 self.marked_pos = 0
 756
 757         def handleKey(self, key):
 758                 # this will no change anything on the value itself
 759                 # so we can handle it here in gui element
 760                 if key == KEY_DELETE:
 761                         self.timeout()
 762                         if self.allmarked:
 763                                 self.deleteAllChars()
 764                                 self.allmarked = False
 765                         else:
 766                                 self.deleteChar(self.marked_pos)
 767                                 if self.fixed_size and self.overwrite:
 768                                         self.marked_pos += 1
 769                 elif key == KEY_BACKSPACE:
 770                         self.timeout()
 771                         if self.allmarked:
 772                                 self.deleteAllChars()
 773                                 self.allmarked = False
 774                         elif self.marked_pos > 0:
 775                                 self.deleteChar(self.marked_pos-1)
 776                                 if not self.fixed_size and self.offset > 0:
 777                                         self.offset -= 1
 778                                 self.marked_pos -= 1
 779                 elif key == KEY_LEFT:
 780                         self.timeout()
 781                         if self.allmarked:
 782                                 self.marked_pos = len(self.text)
 783                                 self.allmarked = False
 784                         else:
 785                                 self.marked_pos -= 1
 786                 elif key == KEY_RIGHT:
 787                         self.timeout()
 788                         if self.allmarked:
 789                                 self.marked_pos = 0
 790                                 self.allmarked = False
 791                         else:
 792                                 self.marked_pos += 1
 793                 elif key == KEY_HOME:
 794                         self.timeout()
 795                         self.allmarked = False
 796                         self.marked_pos = 0
 797                 elif key == KEY_END:
 798                         self.timeout()
 799                         self.allmarked = False
 800                         self.marked_pos = len(self.text)
 801                 elif key == KEY_TOGGLEOW:
 802                         self.timeout()
 803                         self.overwrite = not self.overwrite
 804                 elif key == KEY_ASCII:
 805                         self.timeout()
 806                         newChar = unichr(getPrevAsciiCode())
 807                         if self.allmarked:
 808                                 self.deleteAllChars()
 809                                 self.allmarked = False
 810                         self.insertChar(newChar, self.marked_pos, False)
 811                         self.marked_pos += 1
 812                 elif key in KEY_NUMBERS:
 813                         owr = self.lastKey == getKeyNumber(key)
 814                         newChar = self.getKey(getKeyNumber(key))
 815                         if self.allmarked:
 816                                 self.deleteAllChars()
 817                                 self.allmarked = False
 818                         self.insertChar(newChar, self.marked_pos, owr)
 819                 elif key == KEY_TIMEOUT:
 820                         self.timeout()
 821                         if self.help_window:
 822                                 self.help_window.update(self)
 823                         return
 824
 825                 if self.help_window:
 826                         self.help_window.update(self)
 827                 self.validateMarker()
 828                 self.changed()
 829
 830         def nextFunc(self):
 831                 self.marked_pos += 1
 832                 self.validateMarker()
 833                 self.changed()
 834
 835         def getValue(self):
 836                 return self.text.encode("utf-8")
 837
 838         def setValue(self, val):
 839                 try:
 840                         self.text = val.decode("utf-8")
 841                 except UnicodeDecodeError:
 842                         self.text = val.decode("utf-8", "ignore")
 843                         print "Broken UTF8!"
 844
 845         value = property(getValue, setValue)
 846         _value = property(getValue, setValue)
 847
 848         def getText(self):
 849                 return self.text.encode("utf-8")
 850
 851         def getMulti(self, selected):
 852                 if self.visible_width:
 853                         if self.allmarked:
 854                                 mark = range(0, min(self.visible_width, len(self.text)))
 855                         else:
 856                                 mark = [self.marked_pos-self.offset]
 857                         return ("mtext"[1-selected:], self.text[self.offset:self.offset+self.visible_width].encode("utf-8")+" ", mark)
 858                 else:
 859                         if self.allmarked:
 860                                 mark = range(0, len(self.text))
 861                         else:
 862                                 mark = [self.marked_pos]
 863                         return ("mtext"[1-selected:], self.text.encode("utf-8")+" ", mark)
 864
 865         def onSelect(self, session):
 866                 self.allmarked = (self.value != "")
 867                 if session is not None:
 868                         from Screens.NumericalTextInputHelpDialog import NumericalTextInputHelpDialog
 869                         self.help_window = session.instantiateDialog(NumericalTextInputHelpDialog, self)
 870                         self.help_window.show()
 871
 872         def onDeselect(self, session):
 873                 self.marked_pos = 0
 874                 self.offset = 0
 875                 if self.help_window:
 876                         session.deleteDialog(self.help_window)
 877                         self.help_window = None
 878                 if not self.last_value == self.value:
 879                         self.changedFinal()
 880                         self.last_value = self.value
 881
 882         def getHTML(self, id):
 883                 return '<input type="text" name="' + id + '" value="' + self.value + '" /><br>\n'
 884
 885         def unsafeAssign(self, value):
 886                 self.value = str(value)
 887
 888 class ConfigPassword(ConfigText):
 889         def __init__(self, default = "", fixed_size = False, visible_width = False, censor = "*"):
 890                 ConfigText.__init__(self, default = default, fixed_size = fixed_size, visible_width = visible_width)
 891                 self.censor_char = censor
 892                 self.hidden = True
 893
 894         def getMulti(self, selected):
 895                 mtext, text, mark = ConfigText.getMulti(self, selected)
 896                 if self.hidden:
 897                         text = len(text) * self.censor_char
 898                 return (mtext, text, mark)
 899
 900         def onSelect(self, session):
 901                 ConfigText.onSelect(self, session)
 902                 self.hidden = False
 903
 904         def onDeselect(self, session):
 905                 ConfigText.onDeselect(self, session)
 906                 self.hidden = True
 907
 908 class ConfigNumber(ConfigText):
 909         def __init__(self, default = 0):
 910                 ConfigText.__init__(self, str(default), fixed_size = False)
 911
 912         def getValue(self):
 913                 return int(self.text)
 914
 915         def setValue(self, val):
 916                 self.text = str(val)
 917
 918         value = property(getValue, setValue)
 919         _value = property(getValue, setValue)
 920
 921         def conform(self):
 922                 pos = len(self.text) - self.marked_pos
 923                 self.text = self.text.lstrip("0")
 924                 if self.text == "":
 925                         self.text = "0"
 926                 if pos > len(self.text):
 927                         self.marked_pos = 0
 928                 else:
 929                         self.marked_pos = len(self.text) - pos
 930
 931         def handleKey(self, key):
 932                 if key in KEY_NUMBERS or key == KEY_ASCII:
 933                         if key == KEY_ASCII:
 934                                 ascii = getPrevAsciiCode()
 935                                 if not (48 <= ascii <= 57):
 936                                         return
 937                         else:
 938                                 ascii = getKeyNumber(key) + 48
 939                         newChar = unichr(ascii)
 940                         if self.allmarked:
 941                                 self.deleteAllChars()
 942                                 self.allmarked = False
 943                         self.insertChar(newChar, self.marked_pos, False)
 944                         self.marked_pos += 1
 945                 else:
 946                         ConfigText.handleKey(self, key)
 947                 self.conform()
 948
 949         def onSelect(self, session):
 950                 self.allmarked = (self.value != "")
 951
 952         def onDeselect(self, session):
 953                 self.marked_pos = 0
 954                 self.offset = 0
 955                 if not self.last_value == self.value:
 956                         self.changedFinal()
 957                         self.last_value = self.value
 958
 959 class ConfigSearchText(ConfigText):
 960         def __init__(self, default = "", fixed_size = False, visible_width = False):
 961                 ConfigText.__init__(self, default = default, fixed_size = fixed_size, visible_width = visible_width)
 962                 NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False, search = True)
 963
 964 class ConfigDirectory(ConfigText):
 965         def __init__(self, default="", visible_width=60):
 966                 ConfigText.__init__(self, default, fixed_size = True, visible_width = visible_width)
 967         def handleKey(self, key):
 968                 pass
 969         def getValue(self):
 970                 if self.text == "":
 971                         return None
 972                 else:
 973                         return ConfigText.getValue(self)
 974         def setValue(self, val):
 975                 if val == None:
 976                         val = ""
 977                 ConfigText.setValue(self, val)
 978         def getMulti(self, selected):
 979                 if self.text == "":
 980                         return ("mtext"[1-selected:], _("List of Storage Devices"), range(0))
 981                 else:
 982                         return ConfigText.getMulti(self, selected)
 983
 984 # a slider.
 985 class ConfigSlider(ConfigElement):
 986         def __init__(self, default = 0, increment = 1, limits = (0, 100)):
 987                 ConfigElement.__init__(self)
 988                 self.value = self.last_value = self.default = default
 989                 self.min = limits[0]
 990                 self.max = limits[1]
 991                 self.increment = increment
 992
 993         def checkValues(self):
 994                 if self.value < self.min:
 995                         self.value = self.min
 996
 997                 if self.value > self.max:
 998                         self.value = self.max
 999
1000         def handleKey(self, key):
1001                 if key == KEY_LEFT:
1002                         self.value -= self.increment
1003                 elif key == KEY_RIGHT:
1004                         self.value += self.increment
1005                 elif key == KEY_HOME:
1006                         self.value = self.min
1007                 elif key == KEY_END:
1008                         self.value = self.max
1009                 else:
1010                         return
1011                 self.checkValues()
1012
1013         def getText(self):
1014                 return "%d / %d" % (self.value, self.max)
1015
1016         def getMulti(self, selected):
1017                 self.checkValues()
1018                 return ("slider", self.value, self.max)
1019
1020         def fromstring(self, value):
1021                 return int(value)
1022
1023 # a satlist. in fact, it's a ConfigSelection.
1024 class ConfigSatlist(ConfigSelection):
1025         def __init__(self, list, default = None):
1026                 if default is not None:
1027                         default = str(default)
1028                 ConfigSelection.__init__(self, choices = [(str(orbpos), desc) for (orbpos, desc, flags) in list], default = default)
1029
1030         def getOrbitalPosition(self):
1031                 if self.value == "":
1032                         return None
1033                 return int(self.value)
1034
1035         orbital_position = property(getOrbitalPosition)
1036
1037 class ConfigSet(ConfigElement):
1038         def __init__(self, choices, default = []):
1039                 ConfigElement.__init__(self)
1040                 self.choices = []
1041                 self.description = {}
1042                 if isinstance(choices, list):
1043                         choices.sort()
1044                         for x in choices:
1045                                 if isinstance(x, tuple):
1046                                         self.choices.append(x[0])
1047                                         self.description[x[0]] = str(x[1])
1048                                 else:
1049                                         self.choices.append(x)
1050                                         self.description[x] = str(x)
1051                 else:
1052                         assert False, "ConfigSet choices must be a list!"
1053                 if len(self.choices) == 0:
1054                         self.choices = [""]
1055                         self.description[""] = ""
1056                 if default is None:
1057                         default = []
1058                 self.pos = -1
1059                 default.sort()
1060                 self.last_value = self.default = default
1061                 self.value = default+[]
1062
1063         def toggleChoice(self, choice):
1064                 if choice in self.value:
1065                         self.value.remove(choice)
1066                 else:
1067                         self.value.append(choice)
1068                         self.value.sort()
1069                 self.changed()
1070
1071         def handleKey(self, key):
1072                 if key in KEY_NUMBERS + [KEY_DELETE, KEY_BACKSPACE]:
1073                         if self.pos != -1:
1074                                 self.toggleChoice(self.choices[self.pos])
1075                 elif key == KEY_LEFT:
1076                         self.pos -= 1
1077                         if self.pos < -1:
1078                             self.pos = len(self.choices)-1
1079                 elif key == KEY_RIGHT:
1080                         self.pos += 1
1081                         if self.pos >= len(self.choices):
1082                             self.pos = -1
1083                 elif key in [KEY_HOME, KEY_END]:
1084                         self.pos = -1
1085
1086         def genString(self, lst):
1087                 res = ""
1088                 for x in lst:
1089                         res += self.description[x]+" "
1090                 return res
1091
1092         def getText(self):
1093                 return self.genString(self.value)
1094
1095         def getMulti(self, selected):
1096                 if not selected or self.pos == -1:
1097                         return ("text", self.genString(self.value))
1098                 else:
1099                         tmp = self.value+[]
1100                         ch = self.choices[self.pos]
1101                         mem = ch in self.value
1102                         if not mem:
1103                                 tmp.append(ch)
1104                                 tmp.sort()
1105                         ind = tmp.index(ch)
1106                         val1 = self.genString(tmp[:ind])
1107                         val2 = " "+self.genString(tmp[ind+1:])
1108                         if mem:
1109                                 chstr = " "+self.description[ch]+" "
1110                         else:
1111                                 chstr = "("+self.description[ch]+")"
1112                         return ("mtext", val1+chstr+val2, range(len(val1),len(val1)+len(chstr)))
1113
1114         def onDeselect(self, session):
1115                 self.pos = -1
1116                 if not self.last_value == self.value:
1117                         self.changedFinal()
1118                         self.last_value = self.value+[]
1119
1120         def tostring(self, value):
1121                 return str(value)
1122
1123         def fromstring(self, val):
1124                 return eval(val)
1125
1126 class ConfigLocations(ConfigElement):
1127         def __init__(self, default = [], visible_width = False):
1128                 ConfigElement.__init__(self)
1129                 self.visible_width = visible_width
1130                 self.pos = -1
1131                 self.default = default
1132                 self.locations = []
1133                 self.mountpoints = []
1134                 harddiskmanager.on_partition_list_change.append(self.mountpointsChanged)
1135                 self.value = default+[]
1136
1137         def setValue(self, value):
1138                 loc = [x[0] for x in self.locations if x[3]]
1139                 add = [x for x in value if not x in loc]
1140                 diff = add + [x for x in loc if not x in value]
1141                 self.locations = [x for x in self.locations if not x[0] in diff] + [[x, self.getMountpoint(x), True, True] for x in add]
1142                 self.locations.sort(key = lambda x: x[0])
1143                 self.changed()
1144
1145         def getValue(self):
1146                 self.checkChangedMountpoints()
1147                 for x in self.locations:
1148                         x[3] = x[2]
1149                 return [x[0] for x in self.locations if x[3]]
1150
1151         value = property(getValue, setValue)
1152
1153         def tostring(self, value):
1154                 return str(value)
1155
1156         def fromstring(self, val):
1157                 return eval(val)
1158
1159         def load(self):
1160                 sv = self.saved_value
1161                 if sv is None:
1162                         tmp = self.default
1163                 else:
1164                         tmp = self.fromstring(sv)
1165                 self.locations = [[x, None, False, False] for x in tmp]
1166                 self.refreshMountpoints()
1167                 for x in self.locations:
1168                         if os.path.exists(x[0]):
1169                                 x[1] = self.getMountpoint(x[0])
1170                                 x[2] = True
1171
1172         def save(self):
1173                 if self.save_disabled or self.locations == []:
1174                         self.saved_value = None
1175                 else:
1176                         self.saved_value = self.tostring([x[0] for x in self.locations])
1177
1178         def isChanged(self):
1179                 sv = self.saved_value
1180                 if val is None and self.locations == []:
1181                         return False
1182                 return self.tostring([x[0] for x in self.locations]) != sv
1183
1184         def mountpointsChanged(self, action, dev):
1185                 print "Mounts changed: ", action, dev
1186                 mp = dev.mountpoint+"/"
1187                 if action == "add":
1188                         self.addedMount(mp)
1189                 elif action == "remove":
1190                         self.removedMount(mp)
1191                 self.refreshMountpoints()
1192
1193         def addedMount(self, mp):
1194                 for x in self.locations:
1195                         if x[1] == mp:
1196                                 x[2] = True
1197                         elif x[1] == None and os.path.exists(x[0]):
1198                                 x[1] = self.getMountpoint(x[0])
1199                                 x[2] = True
1200
1201         def removedMount(self, mp):
1202                 for x in self.locations:
1203                         if x[1] == mp:
1204                                 x[2] = False
1205
1206         def refreshMountpoints(self):
1207                 self.mountpoints = [p.mountpoint + "/" for p in harddiskmanager.getMountedPartitions() if p.mountpoint != "/"]
1208                 self.mountpoints.sort(key = lambda x: -len(x))
1209
1210         def checkChangedMountpoints(self):
1211                 oldmounts = self.mountpoints
1212                 self.refreshMountpoints()
1213                 if oldmounts == self.mountpoints:
1214                         return
1215                 for x in oldmounts:
1216                         if not x in self.mountpoints:
1217                                 self.removedMount(x)
1218                 for x in self.mountpoints:
1219                         if not x in oldmounts:
1220                                 self.addedMount(x)
1221
1222         def getMountpoint(self, file):
1223                 file = os.path.realpath(file)+"/"
1224                 for m in self.mountpoints:
1225                         if file.startswith(m):
1226                                 return m
1227                 return None
1228
1229         def handleKey(self, key):
1230                 if key == KEY_LEFT:
1231                         self.pos -= 1
1232                         if self.pos < -1:
1233                             self.pos = len(self.value)-1
1234                 elif key == KEY_RIGHT:
1235                         self.pos += 1
1236                         if self.pos >= len(self.value):
1237                             self.pos = -1
1238                 elif key in [KEY_HOME, KEY_END]:
1239                         self.pos = -1
1240
1241         def getText(self):
1242                 return " ".join(self.value)
1243
1244         def getMulti(self, selected):
1245                 if not selected:
1246                         valstr = " ".join(self.value)
1247                         if self.visible_width and len(valstr) > self.visible_width:
1248                                 return ("text", valstr[0:self.visible_width])
1249                         else:
1250                                 return ("text", valstr)
1251                 else:
1252                         i = 0
1253                         valstr = ""
1254                         ind1 = 0
1255                         ind2 = 0
1256                         for val in self.value:
1257                                 if i == self.pos:
1258                                         ind1 = len(valstr)
1259                                 valstr += str(val)+" "
1260                                 if i == self.pos:
1261                                         ind2 = len(valstr)
1262                                 i += 1
1263                         if self.visible_width and len(valstr) > self.visible_width:
1264                                 if ind1+1 < self.visible_width/2:
1265                                         off = 0
1266                                 else:
1267                                         off = min(ind1+1-self.visible_width/2, len(valstr)-self.visible_width)
1268                                 return ("mtext", valstr[off:off+self.visible_width], range(ind1-off,ind2-off))
1269                         else:
1270                                 return ("mtext", valstr, range(ind1,ind2))
1271
1272         def onDeselect(self, session):
1273                 self.pos = -1
1274
1275 # nothing.
1276 class ConfigNothing(ConfigSelection):
1277         def __init__(self):
1278                 ConfigSelection.__init__(self, choices = [""])
1279
1280 # until here, 'saved_value' always had to be a *string*.
1281 # now, in ConfigSubsection, and only there, saved_value
1282 # is a dict, essentially forming a tree.
1283 #
1284 # config.foo.bar=True
1285 # config.foobar=False
1286 #
1287 # turns into:
1288 # config.saved_value == {"foo": {"bar": "True"}, "foobar": "False"}
1289 #
1290
1291
1292 class ConfigSubsectionContent(object):
1293         pass
1294
1295 # we store a backup of the loaded configuration
1296 # data in self.stored_values, to be able to deploy
1297 # them when a new config element will be added,
1298 # so non-default values are instantly available
1299
1300 # A list, for example:
1301 # config.dipswitches = ConfigSubList()
1302 # config.dipswitches.append(ConfigYesNo())
1303 # config.dipswitches.append(ConfigYesNo())
1304 # config.dipswitches.append(ConfigYesNo())
1305 class ConfigSubList(list, object):
1306         def __init__(self):
1307                 object.__init__(self)
1308                 list.__init__(self)
1309                 self.stored_values = {}
1310
1311         def save(self):
1312                 for x in self:
1313                         x.save()
1314
1315         def load(self):
1316                 for x in self:
1317                         x.load()
1318
1319         def getSavedValue(self):
1320                 res = {}
1321                 for i in range(len(self)):
1322                         sv = self[i].saved_value
1323                         if sv is not None:
1324                                 res[str(i)] = sv
1325                 return res
1326
1327         def setSavedValue(self, values):
1328                 self.stored_values = dict(values)
1329                 for (key, val) in self.stored_values.items():
1330                         if int(key) < len(self):
1331                                 self[int(key)].saved_value = val
1332
1333         saved_value = property(getSavedValue, setSavedValue)
1334
1335         def append(self, item):
1336                 i = str(len(self))
1337                 list.append(self, item)
1338                 if i in self.stored_values:
1339                         item.saved_value = self.stored_values[i]
1340                         item.load()
1341
1342         def dict(self):
1343                 res = dict()
1344                 for index in range(len(self)):
1345                         res[str(index)] = self[index]
1346                 return res
1347
1348 # same as ConfigSubList, just as a dictionary.
1349 # care must be taken that the 'key' has a proper
1350 # str() method, because it will be used in the config
1351 # file.
1352 class ConfigSubDict(dict, object):
1353         def __init__(self):
1354                 object.__init__(self)
1355                 dict.__init__(self)
1356                 self.stored_values = {}
1357
1358         def save(self):
1359                 for x in self.values():
1360                         x.save()
1361
1362         def load(self):
1363                 for x in self.values():
1364                         x.load()
1365
1366         def getSavedValue(self):
1367                 res = {}
1368                 for (key, val) in self.items():
1369                         sv = val.saved_value
1370                         if sv is not None:
1371                                 res[str(key)] = sv
1372                 return res
1373
1374         def setSavedValue(self, values):
1375                 self.stored_values = dict(values)
1376                 for (key, val) in self.items():
1377                         if str(key) in self.stored_values:
1378                                 val = self.stored_values[str(key)]
1379
1380         saved_value = property(getSavedValue, setSavedValue)
1381
1382         def __setitem__(self, key, item):
1383                 dict.__setitem__(self, key, item)
1384                 if str(key) in self.stored_values:
1385                         item.saved_value = self.stored_values[str(key)]
1386                         item.load()
1387
1388         def dict(self):
1389                 return self
1390
1391 # Like the classes above, just with a more "native"
1392 # syntax.
1393 #
1394 # some evil stuff must be done to allow instant
1395 # loading of added elements. this is why this class
1396 # is so complex.
1397 #
1398 # we need the 'content' because we overwrite
1399 # __setattr__.
1400 # If you don't understand this, try adding
1401 # __setattr__ to a usual exisiting class and you will.
1402 class ConfigSubsection(object):
1403         def __init__(self):
1404                 object.__init__(self)
1405                 self.__dict__["content"] = ConfigSubsectionContent()
1406                 self.content.items = { }
1407                 self.content.stored_values = { }
1408
1409         def __setattr__(self, name, value):
1410                 if name == "saved_value":
1411                         return self.setSavedValue(value)
1412                 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"
1413                 self.content.items[name] = value
1414                 if name in self.content.stored_values:
1415                         #print "ok, now we have a new item,", name, "and have the following value for it:", self.content.stored_values[name]
1416                         value.saved_value = self.content.stored_values[name]
1417                         value.load()
1418
1419         def __getattr__(self, name):
1420                 return self.content.items[name]
1421
1422         def getSavedValue(self):
1423                 res = self.content.stored_values
1424                 for (key, val) in self.content.items.items():
1425                         sv = val.saved_value
1426                         if sv is not None:
1427                                 res[key] = sv
1428                         elif key in res:
1429                                 del res[key]
1430                 return res
1431
1432         def setSavedValue(self, values):
1433                 values = dict(values)
1434
1435                 self.content.stored_values = values
1436
1437                 for (key, val) in self.content.items.items():
1438                         if key in values:
1439                                 val.saved_value = values[key]
1440
1441         saved_value = property(getSavedValue, setSavedValue)
1442
1443         def save(self):
1444                 for x in self.content.items.values():
1445                         x.save()
1446
1447         def load(self):
1448                 for x in self.content.items.values():
1449                         x.load()
1450
1451         def dict(self):
1452                 return self.content.items
1453
1454 # the root config object, which also can "pickle" (=serialize)
1455 # down the whole config tree.
1456 #
1457 # we try to keep non-existing config entries, to apply them whenever
1458 # a new config entry is added to a subsection
1459 # also, non-existing config entries will be saved, so they won't be
1460 # lost when a config entry disappears.
1461 class Config(ConfigSubsection):
1462         def __init__(self):
1463                 ConfigSubsection.__init__(self)
1464
1465         def pickle_this(self, prefix, topickle, result):
1466                 for (key, val) in topickle.items():
1467                         name = prefix + "." + key
1468
1469                         if isinstance(val, dict):
1470                                 self.pickle_this(name, val, result)
1471                         elif isinstance(val, tuple):
1472                                 result.append(name + "=" + val[0]) # + " ; " + val[1])
1473                         else:
1474                                 result.append(name + "=" + val)
1475
1476         def pickle(self):
1477                 result = [ ]
1478                 self.pickle_this("config", self.saved_value, result)
1479                 return '\n'.join(result) + "\n"
1480
1481         def unpickle(self, lines):
1482                 tree = { }
1483                 for l in lines:
1484                         if not len(l) or l[0] == '#':
1485                                 continue
1486
1487                         n = l.find('=')
1488                         val = l[n+1:].strip()
1489
1490                         names = l[:n].split('.')
1491 #                       if val.find(' ') != -1:
1492 #                               val = val[:val.find(' ')]
1493
1494                         base = tree
1495
1496                         for n in names[:-1]:
1497                                 base = base.setdefault(n, {})
1498
1499                         base[names[-1]] = val
1500
1501                 # we inherit from ConfigSubsection, so ...
1502                 #object.__setattr__(self, "saved_value", tree["config"])
1503                 if "config" in tree:
1504                         self.setSavedValue(tree["config"])
1505
1506         def saveToFile(self, filename):
1507                 f = open(filename, "w")
1508                 f.write(self.pickle())
1509                 f.close()
1510
1511         def loadFromFile(self, filename):
1512                 f = open(filename, "r")
1513                 self.unpickle(f.readlines())
1514                 f.close()
1515
1516 config = Config()
1517 config.misc = ConfigSubsection()
1518
1519 class ConfigFile:
1520         CONFIG_FILE = resolveFilename(SCOPE_CONFIG, "settings")
1521
1522         def load(self):
1523                 try:
1524                         config.loadFromFile(self.CONFIG_FILE)
1525                 except IOError, e:
1526                         print "unable to load config (%s), assuming defaults..." % str(e)
1527
1528         def save(self):
1529 #               config.save()
1530                 config.saveToFile(self.CONFIG_FILE)
1531
1532         def __resolveValue(self, pickles, cmap):
1533                 if cmap.has_key(pickles[0]):
1534                         if len(pickles) > 1:
1535                                 return self.__resolveValue(pickles[1:], cmap[pickles[0]].dict())
1536                         else:
1537                                 return str(cmap[pickles[0]].value)
1538                 return None
1539
1540         def getResolvedKey(self, key):
1541                 names = key.split('.')
1542                 if len(names) > 1:
1543                         if names[0] == "config":
1544                                 ret=self.__resolveValue(names[1:], config.content.items)
1545                                 if ret and len(ret):
1546                                         return ret
1547                 print "getResolvedKey", key, "failed !! (Typo??)"
1548                 return ""
1549
1550 def NoSave(element):
1551         element.disableSave()
1552         return element
1553
1554 configfile = ConfigFile()
1555
1556 configfile.load()
1557
1558 def getConfigListEntry(*args):
1559         assert len(args) > 1, "getConfigListEntry needs a minimum of two arguments (descr, configElement)"
1560         return args
1561
1562 def updateConfigElement(element, newelement):
1563         newelement.value = element.value
1564         return newelement
1565
1566 #def _(x):
1567 #       return x
1568 #
1569 #config.bla = ConfigSubsection()
1570 #config.bla.test = ConfigYesNo()
1571 #config.nim = ConfigSubList()
1572 #config.nim.append(ConfigSubsection())
1573 #config.nim[0].bla = ConfigYesNo()
1574 #config.nim.append(ConfigSubsection())
1575 #config.nim[1].bla = ConfigYesNo()
1576 #config.nim[1].blub = ConfigYesNo()
1577 #config.arg = ConfigSubDict()
1578 #config.arg["Hello"] = ConfigYesNo()
1579 #
1580 #config.arg["Hello"].handleKey(KEY_RIGHT)
1581 #config.arg["Hello"].handleKey(KEY_RIGHT)
1582 #
1583 ##config.saved_value
1584 #
1585 ##configfile.save()
1586 #config.save()
1587 #print config.pickle()