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 import copy
   6
   7
   8 # ConfigElement, the base class of all ConfigElements.
   9
  10 # it stores:
  11 #   value    the current value, usefully encoded.
  12 #            usually a property which retrieves _value,
  13 #            and maybe does some reformatting
  14 #   _value   the value as it's going to be saved in the configfile,
  15 #            though still in non-string form.
  16 #            this is the object which is actually worked on.
  17 #   default  the initial value. If _value is equal to default,
  18 #            it will not be stored in the config file
  19 #   saved_value is a text representation of _value, stored in the config file
  20 #
  21 # and has (at least) the following methods:
  22 #   save()   stores _value into saved_value,
  23 #            (or stores 'None' if it should not be stored)
  24 #   load()   loads _value from saved_value, or loads
  25 #            the default if saved_value is 'None' (default)
  26 #            or invalid.
  27 #
  28 class ConfigElement(object):
  29         def __init__(self):
  30
  31                 object.__init__(self)
  32                 self.saved_value = None
  33                 self.save_disabled = False
  34                 self.notifiers = []
  35                 self.enabled = True
  36
  37         # you need to override this to do input validation
  38         def setValue(self, value):
  39                 self._value = value
  40                 self.changed()
  41
  42         def getValue(self):
  43                 return self._value
  44
  45         value = property(getValue, setValue)
  46
  47         # you need to override this if self.value is not a string
  48         def fromstring(self, value):
  49                 return value
  50
  51         # you can overide this for fancy default handling
  52         def load(self):
  53                 if self.saved_value is None:
  54                         self.value = self.default
  55                 else:
  56                         self.value = self.fromstring(self.saved_value)
  57
  58         def tostring(self, value):
  59                 return str(value)
  60
  61         # you need to override this if str(self.value) doesn't work
  62         def save(self):
  63                 if self.save_disabled or self.value == self.default:
  64                         self.saved_value = None
  65                 else:
  66                         self.saved_value = self.tostring(self.value)
  67
  68         def cancel(self):
  69                 self.load()
  70
  71         def isChanged(self):
  72                 if self.saved_value is None and self.value == self.default:
  73                         return False
  74                 return self.tostring(self.value) != self.saved_value
  75
  76         def changed(self):
  77                 for x in self.notifiers:
  78                         x(self)
  79
  80         def addNotifier(self, notifier, initial_call = True):
  81                 assert callable(notifier), "notifiers must be callable"
  82                 self.notifiers.append(notifier)
  83
  84                 # CHECKME:
  85                 # do we want to call the notifier
  86                 #  - at all when adding it? (yes, though optional)
  87                 #  - when the default is active? (yes)
  88                 #  - when no value *yet* has been set,
  89                 #    because no config has ever been read (currently yes)
  90                 #    (though that's not so easy to detect.
  91                 #     the entry could just be new.)
  92                 if initial_call:
  93                         notifier(self)
  94
  95         def disableSave(self):
  96                 self.save_disabled = True
  97
  98         def __call__(self, selected):
  99                 return self.getMulti(selected)
 100
 101         def onSelect(self, session):
 102                 pass
 103
 104         def onDeselect(self, session):
 105                 pass
 106
 107 KEY_LEFT = 0
 108 KEY_RIGHT = 1
 109 KEY_OK = 2
 110 KEY_DELETE = 3
 111 KEY_BACKSPACE = 4
 112 KEY_HOME = 5
 113 KEY_END = 6
 114 KEY_TOGGLEOW = 7
 115 KEY_ASCII = 8
 116 KEY_TIMEOUT = 9
 117 KEY_NUMBERS = range(12, 12+10)
 118 KEY_0 = 12
 119 KEY_9 = 12+9
 120
 121 def getKeyNumber(key):
 122         assert key in KEY_NUMBERS
 123         return key - KEY_0
 124
 125 #
 126 # ConfigSelection is a "one of.."-type.
 127 # it has the "choices", usually a list, which contains
 128 # (id, desc)-tuples (or just only the ids, in case the id
 129 # will be used as description)
 130 #
 131 # all ids MUST be plain strings.
 132 #
 133 class ConfigSelection(ConfigElement):
 134         def __init__(self, choices, default = None):
 135                 ConfigElement.__init__(self)
 136                 self.choices = []
 137                 self.description = {}
 138
 139                 if isinstance(choices, list):
 140                         for x in choices:
 141                                 if isinstance(x, tuple):
 142                                         self.choices.append(x[0])
 143                                         self.description[x[0]] = x[1]
 144                                 else:
 145                                         self.choices.append(x)
 146                                         self.description[x] = x
 147                 elif isinstance(choices, dict):
 148                         for (key, val) in choices.items():
 149                                 self.choices.append(key)
 150                                 self.description[key] = val
 151                 else:
 152                         assert False, "ConfigSelection choices must be dict or list!"
 153
 154                 #assert len(self.choices), "you can't have an empty configselection"
 155                 if len(self.choices) == 0:
 156                         self.choices = [""]
 157                         self.description[""] = ""
 158
 159                 if default is None:
 160                         default = self.choices[0]
 161
 162                 assert default in self.choices, "default must be in choice list, but " + repr(default) + " is not!"
 163                 for x in self.choices:
 164                         assert isinstance(x, str), "ConfigSelection choices must be strings"
 165
 166                 self.value = self.default = default
 167
 168         def setValue(self, value):
 169                 if value in self.choices:
 170                         self._value = value
 171                 else:
 172                         self._value = self.default
 173
 174                 self.changed()
 175
 176         def tostring(self, val):
 177                 return val
 178
 179         def getValue(self):
 180                 return self._value
 181
 182         def setCurrentText(self, text):
 183                 i = self.choices.index(self.value)
 184                 del self.description[self.choices[i]]
 185                 self.choices[i] = text
 186                 self.description[text] = text
 187                 self._value = text
 188
 189         value = property(getValue, setValue)
 190
 191         def getIndex(self):
 192                 return self.choices.index(self.value)
 193
 194         index = property(getIndex)
 195
 196         # GUI
 197         def handleKey(self, key):
 198                 nchoices = len(self.choices)
 199                 i = self.choices.index(self.value)
 200                 if key == KEY_LEFT:
 201                         self.value = self.choices[(i + nchoices - 1) % nchoices]
 202                 elif key == KEY_RIGHT:
 203                         self.value = self.choices[(i + 1) % nchoices]
 204                 elif key == KEY_HOME:
 205                         self.value = self.choices[0]
 206                 elif key == KEY_END:
 207                         self.value = self.choices[nchoices - 1]
 208
 209         def getText(self):
 210                 descr = self.description[self.value]
 211                 if len(descr):
 212                         return _(descr)
 213                 return descr
 214
 215         def getMulti(self, selected):
 216                 descr = self.description[self.value]
 217                 if len(descr):
 218                         return ("text", _(descr))
 219                 return ("text", descr)
 220
 221         # HTML
 222         def getHTML(self, id):
 223                 res = ""
 224                 for v in self.choices:
 225                         if self.value == v:
 226                                 checked = 'checked="checked" '
 227                         else:
 228                                 checked = ''
 229                         res += '<input type="radio" name="' + id + '" ' + checked + 'value="' + v + '">' + self.description[v] + "</input></br>\n"
 230                 return res;
 231
 232         def unsafeAssign(self, value):
 233                 # setValue does check if value is in choices. This is safe enough.
 234                 self.value = value
 235
 236 # a binary decision.
 237 #
 238 # several customized versions exist for different
 239 # descriptions.
 240 #
 241 class ConfigBoolean(ConfigElement):
 242         def __init__(self, default = False, descriptions = {False: "false", True: "true"}):
 243                 ConfigElement.__init__(self)
 244                 self.descriptions = descriptions
 245                 self.value = self.default = default
 246         def handleKey(self, key):
 247                 if key in [KEY_LEFT, KEY_RIGHT]:
 248                         self.value = not self.value
 249                 elif key == KEY_HOME:
 250                         self.value = False
 251                 elif key == KEY_END:
 252                         self.value = True
 253
 254         def getText(self):
 255                 descr = self.descriptions[self.value]
 256                 if len(descr):
 257                         return _(descr)
 258                 return descr
 259
 260         def getMulti(self, selected):
 261                 descr = self.descriptions[self.value]
 262                 if len(descr):
 263                         return ("text", _(descr))
 264                 return ("text", descr)
 265
 266         def tostring(self, value):
 267                 if not value:
 268                         return "false"
 269                 else:
 270                         return "true"
 271
 272         def fromstring(self, val):
 273                 if val == "true":
 274                         return True
 275                 else:
 276                         return False
 277
 278         def getHTML(self, id):
 279                 if self.value:
 280                         checked = ' checked="checked"'
 281                 else:
 282                         checked = ''
 283                 return '<input type="checkbox" name="' + id + '" value="1" ' + checked + " />"
 284
 285         # this is FLAWED. and must be fixed.
 286         def unsafeAssign(self, value):
 287                 if value == "1":
 288                         self.value = True
 289                 else:
 290                         self.value = False
 291
 292 class ConfigYesNo(ConfigBoolean):
 293         def __init__(self, default = False):
 294                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("no"), True: _("yes")})
 295
 296 class ConfigOnOff(ConfigBoolean):
 297         def __init__(self, default = False):
 298                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("off"), True: _("on")})
 299
 300 class ConfigEnableDisable(ConfigBoolean):
 301         def __init__(self, default = False):
 302                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("disable"), True: _("enable")})
 303
 304 class ConfigDateTime(ConfigElement):
 305         def __init__(self, default, formatstring, increment = 86400):
 306                 ConfigElement.__init__(self)
 307                 self.increment = increment
 308                 self.formatstring = formatstring
 309                 self.value = self.default = int(default)
 310
 311         def handleKey(self, key):
 312                 if key == KEY_LEFT:
 313                         self.value = self.value - self.increment
 314                 elif key == KEY_RIGHT:
 315                         self.value = self.value + self.increment
 316                 elif key == KEY_HOME or key == KEY_END:
 317                         self.value = self.default
 318
 319         def getText(self):
 320                 return time.strftime(self.formatstring, time.localtime(self.value))
 321
 322         def getMulti(self, selected):
 323                 return ("text", time.strftime(self.formatstring, time.localtime(self.value)))
 324
 325         def fromstring(self, val):
 326                 return int(val)
 327
 328 # *THE* mighty config element class
 329 #
 330 # allows you to store/edit a sequence of values.
 331 # can be used for IP-addresses, dates, plain integers, ...
 332 # several helper exist to ease this up a bit.
 333 #
 334 class ConfigSequence(ConfigElement):
 335         def __init__(self, seperator, limits, censor_char = "", default = None):
 336                 ConfigElement.__init__(self)
 337                 assert isinstance(limits, list) and len(limits[0]) == 2, "limits must be [(min, max),...]-tuple-list"
 338                 assert censor_char == "" or len(censor_char) == 1, "censor char must be a single char (or \"\")"
 339                 #assert isinstance(default, list), "default must be a list"
 340                 #assert isinstance(default[0], int), "list must contain numbers"
 341                 #assert len(default) == len(limits), "length must match"
 342
 343                 self.marked_pos = 0
 344                 self.seperator = seperator
 345                 self.limits = limits
 346                 self.censor_char = censor_char
 347
 348                 self.default = default
 349                 self.value = copy.copy(default)
 350
 351                 self.endNotifier = []
 352
 353         def validate(self):
 354                 max_pos = 0
 355                 num = 0
 356                 for i in self._value:
 357                         max_pos += len(str(self.limits[num][1]))
 358
 359                         while self._value[num] < self.limits[num][0]:
 360                                 self._value[num] += 1
 361
 362                         while self._value[num] > self.limits[num][1]:
 363                                 self._value[num] -= 1
 364
 365                         num += 1
 366
 367                 if self.marked_pos >= max_pos:
 368                         for x in self.endNotifier:
 369                                 x(self)
 370                         self.marked_pos = max_pos - 1
 371
 372                 if self.marked_pos < 0:
 373                         self.marked_pos = 0
 374
 375         def validatePos(self):
 376                 if self.marked_pos < 0:
 377                         self.marked_pos = 0
 378
 379                 total_len = sum([len(str(x[1])) for x in self.limits])
 380
 381                 if self.marked_pos >= total_len:
 382                         self.marked_pos = total_len - 1
 383
 384         def addEndNotifier(self, notifier):
 385                 self.endNotifier.append(notifier)
 386
 387         def handleKey(self, key):
 388                 if key == KEY_LEFT:
 389                         self.marked_pos -= 1
 390                         self.validatePos()
 391
 392                 if key == KEY_RIGHT:
 393                         self.marked_pos += 1
 394                         self.validatePos()
 395
 396                 if key == KEY_HOME:
 397                         self.marked_pos = 0
 398                         self.validatePos()
 399
 400                 if key == KEY_END:
 401                         max_pos = 0
 402                         num = 0
 403                         for i in self._value:
 404                                 max_pos += len(str(self.limits[num][1]))
 405                                 num += 1
 406                         self.marked_pos = max_pos - 1
 407                         self.validatePos()
 408
 409                 if key in KEY_NUMBERS or key == KEY_ASCII:
 410                         if key == KEY_ASCII:
 411                                 code = getPrevAsciiCode()
 412                                 if code < 48 or code > 57:
 413                                         return
 414                                 number = code - 48
 415                         else:
 416                                 number = getKeyNumber(key)
 417
 418                         block_len = []
 419                         for x in self.limits:
 420                                 block_len.append(len(str(x[1])))
 421
 422                         total_len = sum(block_len)
 423
 424                         pos = 0
 425                         blocknumber = 0
 426                         block_len_total = [0, ]
 427                         for x in block_len:
 428                                 pos += block_len[blocknumber]
 429                                 block_len_total.append(pos)
 430                                 if pos - 1 >= self.marked_pos:
 431                                         pass
 432                                 else:
 433                                         blocknumber += 1
 434
 435                         # length of numberblock
 436                         number_len = len(str(self.limits[blocknumber][1]))
 437
 438                         # position in the block
 439                         posinblock = self.marked_pos - block_len_total[blocknumber]
 440
 441                         oldvalue = self._value[blocknumber]
 442                         olddec = oldvalue % 10 ** (number_len - posinblock) - (oldvalue % 10 ** (number_len - posinblock - 1))
 443                         newvalue = oldvalue - olddec + (10 ** (number_len - posinblock - 1) * number)
 444
 445                         self._value[blocknumber] = newvalue
 446                         self.marked_pos += 1
 447
 448                         self.validate()
 449                         self.changed()
 450
 451         def genText(self):
 452                 value = ""
 453                 mPos = self.marked_pos
 454                 num = 0;
 455                 for i in self._value:
 456                         if len(value):  #fixme no heading separator possible
 457                                 value += self.seperator
 458                                 if mPos >= len(value) - 1:
 459                                         mPos += 1
 460
 461                         if self.censor_char == "":
 462                                 value += ("%0" + str(len(str(self.limits[num][1]))) + "d") % i
 463                         else:
 464                                 value += (self.censor_char * len(str(self.limits[num][1])))
 465                         num += 1
 466                 return (value, mPos)
 467
 468         def getText(self):
 469                 (value, mPos) = self.genText()
 470                 return value
 471
 472         def getMulti(self, selected):
 473                 (value, mPos) = self.genText()
 474                         # only mark cursor when we are selected
 475                         # (this code is heavily ink optimized!)
 476                 if self.enabled:
 477                         return ("mtext"[1-selected:], value, [mPos])
 478                 else:
 479                         return ("text", value)
 480
 481         def tostring(self, val):
 482                 return self.seperator.join([self.saveSingle(x) for x in val])
 483
 484         def saveSingle(self, v):
 485                 return str(v)
 486
 487         def fromstring(self, value):
 488                 return [int(x) for x in value.split(self.seperator)]
 489
 490 class ConfigIP(ConfigSequence):
 491         def __init__(self, default):
 492                 ConfigSequence.__init__(self, seperator = ".", limits = [(0,255),(0,255),(0,255),(0,255)], default = default)
 493
 494         def getHTML(self, id):
 495                 # we definitely don't want leading zeros
 496                 return '.'.join(["%d" % d for d in self.value])
 497
 498 class ConfigMAC(ConfigSequence):
 499         def __init__(self, default):
 500                 ConfigSequence.__init__(self, seperator = ":", limits = [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)], default = default)
 501
 502 class ConfigPosition(ConfigSequence):
 503         def __init__(self, default, args):
 504                 ConfigSequence.__init__(self, seperator = ",", limits = [(0,args[0]),(0,args[1]),(0,args[2]),(0,args[3])], default = default)
 505
 506 class ConfigClock(ConfigSequence):
 507         def __init__(self, default):
 508                 import time
 509                 t = time.localtime(default)
 510                 ConfigSequence.__init__(self, seperator = ":", limits = [(0,23),(0,59)], default = [t.tm_hour, t.tm_min])
 511
 512 class ConfigInteger(ConfigSequence):
 513         def __init__(self, default, limits = (0, 10000000000)):
 514                 ConfigSequence.__init__(self, seperator = ":", limits = [limits], default = default)
 515
 516         # you need to override this to do input validation
 517         def setValue(self, value):
 518                 self._value = [value]
 519                 self.changed()
 520
 521         def getValue(self):
 522                 return self._value[0]
 523
 524         value = property(getValue, setValue)
 525
 526         def fromstring(self, value):
 527                 return int(value)
 528
 529         def tostring(self, value):
 530                 return str(value)
 531
 532 class ConfigPIN(ConfigInteger):
 533         def __init__(self, default, len = 4, censor = ""):
 534                 assert isinstance(default, int), "ConfigPIN default must be an integer"
 535                 if default == -1:
 536                         default = "aaaa"
 537                 ConfigSequence.__init__(self, seperator = ":", limits = [(0, (10**len)-1)], censor_char = censor, default = default)
 538                 self.len = len
 539
 540         def getLength(self):
 541                 return self.len
 542
 543 class ConfigFloat(ConfigSequence):
 544         def __init__(self, default, limits):
 545                 ConfigSequence.__init__(self, seperator = ".", limits = limits, default = default)
 546
 547         def getFloat(self):
 548                 return float(self.value[1] / float(self.limits[1][1] + 1) + self.value[0])
 549
 550         float = property(getFloat)
 551
 552 # an editable text...
 553 class ConfigText(ConfigElement, NumericalTextInput):
 554         def __init__(self, default = "", fixed_size = True, visible_width = False):
 555                 ConfigElement.__init__(self)
 556                 NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False)
 557
 558                 self.marked_pos = 0
 559                 self.allmarked = (default != "")
 560                 self.fixed_size = fixed_size
 561                 self.visible_width = visible_width
 562                 self.offset = 0
 563                 self.overwrite = fixed_size
 564                 self.help_window = None
 565                 self.value = self.default = default
 566
 567         def validateMarker(self):
 568                 if self.fixed_size:
 569                         if self.marked_pos > len(self.text)-1:
 570                                 self.marked_pos = len(self.text)-1
 571                 else:
 572                         if self.marked_pos > len(self.text):
 573                                 self.marked_pos = len(self.text)
 574                 if self.marked_pos < 0:
 575                         self.marked_pos = 0
 576                 if self.visible_width:
 577                         if self.marked_pos < self.offset:
 578                                 self.offset = self.marked_pos
 579                         if self.marked_pos >= self.offset + self.visible_width:
 580                                 if self.marked_pos == len(self.text):
 581                                         self.offset = self.marked_pos - self.visible_width
 582                                 else:
 583                                         self.offset = self.marked_pos - self.visible_width + 1
 584                         if self.offset > 0 and self.offset + self.visible_width > len(self.text):
 585                                 self.offset = max(0, len(self.text) - self.visible_width)
 586
 587         def insertChar(self, ch, pos, owr):
 588                 if owr or self.overwrite:
 589                         self.text = self.text[0:pos] + ch + self.text[pos + 1:]
 590                 elif self.fixed_size:
 591                         self.text = self.text[0:pos] + ch + self.text[pos:-1]
 592                 else:
 593                         self.text = self.text[0:pos] + ch + self.text[pos:]
 594
 595         def deleteChar(self, pos):
 596                 if not self.fixed_size:
 597                         self.text = self.text[0:pos] + self.text[pos + 1:]
 598                 elif self.overwrite:
 599                         self.text = self.text[0:pos] + " " + self.text[pos + 1:]
 600                 else:
 601                         self.text = self.text[0:pos] + self.text[pos + 1:] + " "
 602
 603         def deleteAllChars(self):
 604                 if self.fixed_size:
 605                         self.text = " " * len(self.text)
 606                 else:
 607                         self.text = ""
 608                 self.marked_pos = 0
 609
 610         def handleKey(self, key):
 611                 # this will no change anything on the value itself
 612                 # so we can handle it here in gui element
 613                 if key == KEY_DELETE:
 614                         self.timeout()
 615                         if self.allmarked:
 616                                 self.deleteAllChars()
 617                                 self.allmarked = False
 618                         else:
 619                                 self.deleteChar(self.marked_pos)
 620                                 if self.fixed_size and self.overwrite:
 621                                         self.marked_pos += 1
 622                 elif key == KEY_BACKSPACE:
 623                         self.timeout()
 624                         if self.allmarked:
 625                                 self.deleteAllChars()
 626                                 self.allmarked = False
 627                         elif self.marked_pos > 0:
 628                                 self.deleteChar(self.marked_pos-1)
 629                                 if not self.fixed_size and self.offset > 0:
 630                                         self.offset -= 1
 631                                 self.marked_pos -= 1
 632                 elif key == KEY_LEFT:
 633                         self.timeout()
 634                         if self.allmarked:
 635                                 self.marked_pos = len(self.text)
 636                                 self.allmarked = False
 637                         else:
 638                                 self.marked_pos -= 1
 639                 elif key == KEY_RIGHT:
 640                         self.timeout()
 641                         if self.allmarked:
 642                                 self.marked_pos = 0
 643                                 self.allmarked = False
 644                         else:
 645                                 self.marked_pos += 1
 646                 elif key == KEY_HOME:
 647                         self.timeout()
 648                         self.allmarked = False
 649                         self.marked_pos = 0
 650                 elif key == KEY_END:
 651                         self.timeout()
 652                         self.allmarked = False
 653                         self.marked_pos = len(self.text)
 654                 elif key == KEY_TOGGLEOW:
 655                         self.timeout()
 656                         self.overwrite = not self.overwrite
 657                 elif key == KEY_ASCII:
 658                         self.timeout()
 659                         newChar = unichr(getPrevAsciiCode())
 660                         if self.allmarked:
 661                                 self.deleteAllChars()
 662                                 self.allmarked = False
 663                         self.insertChar(newChar, self.marked_pos, False)
 664                         self.marked_pos += 1
 665                 elif key in KEY_NUMBERS:
 666                         owr = self.lastKey == getKeyNumber(key)
 667                         newChar = self.getKey(getKeyNumber(key))
 668                         if self.allmarked:
 669                                 self.deleteAllChars()
 670                                 self.allmarked = False
 671                         self.insertChar(newChar, self.marked_pos, owr)
 672                 elif key == KEY_TIMEOUT:
 673                         self.timeout()
 674                         if self.help_window:
 675                                 self.help_window.update(self)
 676                         return
 677
 678                 if self.help_window:
 679                         self.help_window.update(self)
 680                 self.validateMarker()
 681                 self.changed()
 682
 683         def nextFunc(self):
 684                 self.marked_pos += 1
 685                 self.validateMarker()
 686                 self.changed()
 687
 688         def getValue(self):
 689                 return self.text.encode("utf-8")
 690
 691         def setValue(self, val):
 692                 try:
 693                         self.text = val.decode("utf-8")
 694                 except UnicodeDecodeError:
 695                         self.text = val
 696                         print "Broken UTF8!"
 697
 698         value = property(getValue, setValue)
 699         _value = property(getValue, setValue)
 700
 701         def getText(self):
 702                 return self.value
 703
 704         def getMulti(self, selected):
 705                 if self.visible_width:
 706                         if self.allmarked:
 707                                 mark = range(0, min(self.visible_width, len(self.text)))
 708                         else:
 709                                 mark = [self.marked_pos-self.offset]
 710                         return ("mtext"[1-selected:], self.text[self.offset:self.offset+self.visible_width].encode("utf-8")+" ", mark)
 711                 else:
 712                         if self.allmarked:
 713                                 mark = range(0, len(self.text))
 714                         else:
 715                                 mark = [self.marked_pos]
 716                         return ("mtext"[1-selected:], self.value+" ", mark)
 717
 718         def onSelect(self, session):
 719                 self.allmarked = (self.value != "")
 720                 if session is not None:
 721                         from Screens.NumericalTextInputHelpDialog import NumericalTextInputHelpDialog
 722                         self.help_window = session.instantiateDialog(NumericalTextInputHelpDialog, self)
 723                         self.help_window.show()
 724
 725         def onDeselect(self, session):
 726                 self.marked_pos = 0
 727                 self.offset = 0
 728                 if self.help_window:
 729                         session.deleteDialog(self.help_window)
 730                         self.help_window = None
 731
 732         def getHTML(self, id):
 733                 return '<input type="text" name="' + id + '" value="' + self.value + '" /><br>\n'
 734
 735         def unsafeAssign(self, value):
 736                 self.value = str(value)
 737
 738 # a slider.
 739 class ConfigSlider(ConfigElement):
 740         def __init__(self, default = 0, increment = 1, limits = (0, 100)):
 741                 ConfigElement.__init__(self)
 742                 self.value = self.default = default
 743                 self.min = limits[0]
 744                 self.max = limits[1]
 745                 self.increment = increment
 746
 747         def checkValues(self):
 748                 if self.value < self.min:
 749                         self.value = self.min
 750
 751                 if self.value > self.max:
 752                         self.value = self.max
 753
 754         def handleKey(self, key):
 755                 if key == KEY_LEFT:
 756                         self.value -= self.increment
 757                 elif key == KEY_RIGHT:
 758                         self.value += self.increment
 759                 elif key == KEY_HOME:
 760                         self.value = self.min
 761                 elif key == KEY_END:
 762                         self.value = self.max
 763                 else:
 764                         return
 765
 766                 self.checkValues()
 767                 self.changed()
 768
 769         def getText(self):
 770                 return "%d / %d" % (self.value, self.max)
 771
 772         def getMulti(self, selected):
 773                 self.checkValues()
 774                 return ("slider", self.value, self.max)
 775
 776         def fromstring(self, value):
 777                 return int(value)
 778
 779 # a satlist. in fact, it's a ConfigSelection.
 780 class ConfigSatlist(ConfigSelection):
 781         def __init__(self, list, default = None):
 782                 if default is not None:
 783                         default = str(default)
 784                 ConfigSelection.__init__(self, choices = [(str(orbpos), desc) for (orbpos, desc, flags) in list], default = default)
 785
 786         def getOrbitalPosition(self):
 787                 if self.value == "":
 788                         return None
 789                 return int(self.value)
 790
 791         orbital_position = property(getOrbitalPosition)
 792
 793 # nothing.
 794 class ConfigNothing(ConfigSelection):
 795         def __init__(self):
 796                 ConfigSelection.__init__(self, choices = [""])
 797
 798 # until here, 'saved_value' always had to be a *string*.
 799 # now, in ConfigSubsection, and only there, saved_value
 800 # is a dict, essentially forming a tree.
 801 #
 802 # config.foo.bar=True
 803 # config.foobar=False
 804 #
 805 # turns into:
 806 # config.saved_value == {"foo": {"bar": "True"}, "foobar": "False"}
 807 #
 808
 809
 810 class ConfigSubsectionContent(object):
 811         pass
 812
 813 # we store a backup of the loaded configuration
 814 # data in self.stored_values, to be able to deploy
 815 # them when a new config element will be added,
 816 # so non-default values are instantly available
 817
 818 # A list, for example:
 819 # config.dipswitches = ConfigSubList()
 820 # config.dipswitches.append(ConfigYesNo())
 821 # config.dipswitches.append(ConfigYesNo())
 822 # config.dipswitches.append(ConfigYesNo())
 823 class ConfigSubList(list, object):
 824         def __init__(self):
 825                 object.__init__(self)
 826                 list.__init__(self)
 827                 self.stored_values = {}
 828
 829         def save(self):
 830                 for x in self:
 831                         x.save()
 832
 833         def load(self):
 834                 for x in self:
 835                         x.load()
 836
 837         def getSavedValue(self):
 838                 res = {}
 839                 for i in range(len(self)):
 840                         sv = self[i].saved_value
 841                         if sv is not None:
 842                                 res[str(i)] = sv
 843                 return res
 844
 845         def setSavedValue(self, values):
 846                 self.stored_values = dict(values)
 847                 for (key, val) in self.stored_values.items():
 848                         if int(key) < len(self):
 849                                 self[int(key)].saved_value = val
 850
 851         saved_value = property(getSavedValue, setSavedValue)
 852
 853         def append(self, item):
 854                 i = str(len(self))
 855                 list.append(self, item)
 856                 if i in self.stored_values:
 857                         item.saved_value = self.stored_values[i]
 858                         item.load()
 859
 860         def dict(self):
 861                 res = dict()
 862                 for index in range(len(self)):
 863                         res[str(index)] = self[index]
 864                 return res
 865
 866 # same as ConfigSubList, just as a dictionary.
 867 # care must be taken that the 'key' has a proper
 868 # str() method, because it will be used in the config
 869 # file.
 870 class ConfigSubDict(dict, object):
 871         def __init__(self):
 872                 object.__init__(self)
 873                 dict.__init__(self)
 874                 self.stored_values = {}
 875
 876         def save(self):
 877                 for x in self.values():
 878                         x.save()
 879
 880         def load(self):
 881                 for x in self.values():
 882                         x.load()
 883
 884         def getSavedValue(self):
 885                 res = {}
 886                 for (key, val) in self.items():
 887                         if val.saved_value is not None:
 888                                 res[str(key)] = val.saved_value
 889                 return res
 890
 891         def setSavedValue(self, values):
 892                 self.stored_values = dict(values)
 893                 for (key, val) in self.items():
 894                         if str(key) in self.stored_values:
 895                                 val = self.stored_values[str(key)]
 896
 897         saved_value = property(getSavedValue, setSavedValue)
 898
 899         def __setitem__(self, key, item):
 900                 dict.__setitem__(self, key, item)
 901                 if str(key) in self.stored_values:
 902                         item.saved_value = self.stored_values[str(key)]
 903                         item.load()
 904
 905         def dict(self):
 906                 return self
 907
 908 # Like the classes above, just with a more "native"
 909 # syntax.
 910 #
 911 # some evil stuff must be done to allow instant
 912 # loading of added elements. this is why this class
 913 # is so complex.
 914 #
 915 # we need the 'content' because we overwrite
 916 # __setattr__.
 917 # If you don't understand this, try adding
 918 # __setattr__ to a usual exisiting class and you will.
 919 class ConfigSubsection(object):
 920         def __init__(self):
 921                 object.__init__(self)
 922                 self.__dict__["content"] = ConfigSubsectionContent()
 923                 self.content.items = { }
 924                 self.content.stored_values = { }
 925
 926         def __setattr__(self, name, value):
 927                 if name == "saved_value":
 928                         return self.setSavedValue(value)
 929                 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"
 930                 self.content.items[name] = value
 931                 if name in self.content.stored_values:
 932                         #print "ok, now we have a new item,", name, "and have the following value for it:", self.content.stored_values[name]
 933                         value.saved_value = self.content.stored_values[name]
 934                         value.load()
 935
 936         def __getattr__(self, name):
 937                 return self.content.items[name]
 938
 939         def getSavedValue(self):
 940                 res = self.content.stored_values
 941                 for (key, val) in self.content.items.items():
 942                         if val.saved_value is not None:
 943                                 res[key] = val.saved_value
 944                         elif key in res:
 945                                 del res[key]
 946
 947                 return res
 948
 949         def setSavedValue(self, values):
 950                 values = dict(values)
 951
 952                 self.content.stored_values = values
 953
 954                 for (key, val) in self.content.items.items():
 955                         if key in values:
 956                                 val.setSavedValue(values[key])
 957
 958         saved_value = property(getSavedValue, setSavedValue)
 959
 960         def save(self):
 961                 for x in self.content.items.values():
 962                         x.save()
 963
 964         def load(self):
 965                 for x in self.content.items.values():
 966                         x.load()
 967
 968         def dict(self):
 969                 return self.content.items
 970
 971 # the root config object, which also can "pickle" (=serialize)
 972 # down the whole config tree.
 973 #
 974 # we try to keep non-existing config entries, to apply them whenever
 975 # a new config entry is added to a subsection
 976 # also, non-existing config entries will be saved, so they won't be
 977 # lost when a config entry disappears.
 978 class Config(ConfigSubsection):
 979         def __init__(self):
 980                 ConfigSubsection.__init__(self)
 981
 982         def pickle_this(self, prefix, topickle, result):
 983                 for (key, val) in topickle.items():
 984                         name = prefix + "." + key
 985
 986                         if isinstance(val, dict):
 987                                 self.pickle_this(name, val, result)
 988                         elif isinstance(val, tuple):
 989                                 result.append(name + "=" + val[0]) # + " ; " + val[1])
 990                         else:
 991                                 result.append(name + "=" + val)
 992
 993         def pickle(self):
 994                 result = [ ]
 995                 self.pickle_this("config", self.saved_value, result)
 996                 return '\n'.join(result) + "\n"
 997
 998         def unpickle(self, lines):
 999                 tree = { }
1000                 for l in lines:
1001                         if not len(l) or l[0] == '#':
1002                                 continue
1003
1004                         n = l.find('=')
1005                         val = l[n+1:].strip()
1006
1007                         names = l[:n].split('.')
1008 #                       if val.find(' ') != -1:
1009 #                               val = val[:val.find(' ')]
1010
1011                         base = tree
1012
1013                         for n in names[:-1]:
1014                                 base = base.setdefault(n, {})
1015
1016                         base[names[-1]] = val
1017
1018                 # we inherit from ConfigSubsection, so ...
1019                 #object.__setattr__(self, "saved_value", tree["config"])
1020                 if "config" in tree:
1021                         self.setSavedValue(tree["config"])
1022
1023         def saveToFile(self, filename):
1024                 f = open(filename, "w")
1025                 f.write(self.pickle())
1026                 f.close()
1027
1028         def loadFromFile(self, filename):
1029                 f = open(filename, "r")
1030                 self.unpickle(f.readlines())
1031                 f.close()
1032
1033 config = Config()
1034 config.misc = ConfigSubsection()
1035
1036 class ConfigFile:
1037         CONFIG_FILE = resolveFilename(SCOPE_CONFIG, "settings")
1038
1039         def load(self):
1040                 try:
1041                         config.loadFromFile(self.CONFIG_FILE)
1042                 except IOError, e:
1043                         print "unable to load config (%s), assuming defaults..." % str(e)
1044
1045         def save(self):
1046 #               config.save()
1047                 config.saveToFile(self.CONFIG_FILE)
1048
1049         def __resolveValue(self, pickles, cmap):
1050                 if cmap.has_key(pickles[0]):
1051                         if len(pickles) > 1:
1052                                 return self.__resolveValue(pickles[1:], cmap[pickles[0]].dict())
1053                         else:
1054                                 return str(cmap[pickles[0]].value)
1055                 return None
1056
1057         def getResolvedKey(self, key):
1058                 names = key.split('.')
1059                 if len(names) > 1:
1060                         if names[0] == "config":
1061                                 ret=self.__resolveValue(names[1:], config.content.items)
1062                                 if ret and len(ret):
1063                                         return ret
1064                 print "getResolvedKey", key, "failed !! (Typo??)"
1065                 return ""
1066
1067 def NoSave(element):
1068         element.disableSave()
1069         return element
1070
1071 configfile = ConfigFile()
1072
1073 configfile.load()
1074
1075 def getConfigListEntry(*args):
1076         assert len(args) > 1, "getConfigListEntry needs a minimum of two arguments (descr, configElement)"
1077         return args
1078
1079 #def _(x):
1080 #       return x
1081 #
1082 #config.bla = ConfigSubsection()
1083 #config.bla.test = ConfigYesNo()
1084 #config.nim = ConfigSubList()
1085 #config.nim.append(ConfigSubsection())
1086 #config.nim[0].bla = ConfigYesNo()
1087 #config.nim.append(ConfigSubsection())
1088 #config.nim[1].bla = ConfigYesNo()
1089 #config.nim[1].blub = ConfigYesNo()
1090 #config.arg = ConfigSubDict()
1091 #config.arg["Hello"] = ConfigYesNo()
1092 #
1093 #config.arg["Hello"].handleKey(KEY_RIGHT)
1094 #config.arg["Hello"].handleKey(KEY_RIGHT)
1095 #
1096 ##config.saved_value
1097 #
1098 ##configfile.save()
1099 #config.save()
1100 #print config.pickle()