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