Mac/Lib/EasyDialogs.py

   1 """Easy to use dialogs.
   2
   3 Message(msg) -- display a message and an OK button.
   4 AskString(prompt, default) -- ask for a string, display OK and Cancel buttons.
   5 AskPassword(prompt, default) -- like AskString(), but shows text as bullets.
   6 AskYesNoCancel(question, default) -- display a question and Yes, No and Cancel buttons.
   7 bar = Progress(label, maxvalue) -- Display a progress bar
   8 bar.set(value) -- Set value
   9 bar.inc( *amount ) -- increment value by amount (default=1)
  10 bar.label( *newlabel ) -- get or set text label.
  11
  12 More documentation in each function.
  13 This module uses DLOG resources 260 and on.
  14 Based upon STDWIN dialogs with the same names and functions.
  15 """
  16
  17 from Carbon.Dlg import GetNewDialog, SetDialogItemText, GetDialogItemText, ModalDialog
  18 from Carbon import Qd
  19 from Carbon import QuickDraw
  20 from Carbon import Dialogs
  21 from Carbon import Windows
  22 from Carbon import Dlg,Win,Evt,Events # sdm7g
  23 from Carbon import Ctl
  24 from Carbon import Controls
  25 from Carbon import Menu
  26 import MacOS
  27 import string
  28 from Carbon.ControlAccessor import *    # Also import Controls constants
  29 import macfs
  30
  31 def cr2lf(text):
  32         if '\r' in text:
  33                 text = string.join(string.split(text, '\r'), '\n')
  34         return text
  35
  36 def lf2cr(text):
  37         if '\n' in text:
  38                 text = string.join(string.split(text, '\n'), '\r')
  39         if len(text) > 253:
  40                 text = text[:253] + '\311'
  41         return text
  42
  43 def Message(msg, id=260, ok=None):
  44         """Display a MESSAGE string.
  45
  46         Return when the user clicks the OK button or presses Return.
  47
  48         The MESSAGE string can be at most 255 characters long.
  49         """
  50
  51         d = GetNewDialog(id, -1)
  52         if not d:
  53                 print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
  54                 return
  55         h = d.GetDialogItemAsControl(2)
  56         SetDialogItemText(h, lf2cr(msg))
  57         if ok != None:
  58                 h = d.GetDialogItemAsControl(1)
  59                 h.SetControlTitle(ok)
  60         d.SetDialogDefaultItem(1)
  61         d.AutoSizeDialog()
  62         d.GetDialogWindow().ShowWindow()
  63         while 1:
  64                 n = ModalDialog(None)
  65                 if n == 1:
  66                         return
  67
  68
  69 def AskString(prompt, default = "", id=261, ok=None, cancel=None):
  70         """Display a PROMPT string and a text entry field with a DEFAULT string.
  71
  72         Return the contents of the text entry field when the user clicks the
  73         OK button or presses Return.
  74         Return None when the user clicks the Cancel button.
  75
  76         If omitted, DEFAULT is empty.
  77
  78         The PROMPT and DEFAULT strings, as well as the return value,
  79         can be at most 255 characters long.
  80         """
  81
  82         d = GetNewDialog(id, -1)
  83         if not d:
  84                 print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
  85                 return
  86         h = d.GetDialogItemAsControl(3)
  87         SetDialogItemText(h, lf2cr(prompt))
  88         h = d.GetDialogItemAsControl(4)
  89         SetDialogItemText(h, lf2cr(default))
  90         d.SelectDialogItemText(4, 0, 999)
  91 #       d.SetDialogItem(4, 0, 255)
  92         if ok != None:
  93                 h = d.GetDialogItemAsControl(1)
  94                 h.SetControlTitle(ok)
  95         if cancel != None:
  96                 h = d.GetDialogItemAsControl(2)
  97                 h.SetControlTitle(cancel)
  98         d.SetDialogDefaultItem(1)
  99         d.SetDialogCancelItem(2)
 100         d.AutoSizeDialog()
 101         d.GetDialogWindow().ShowWindow()
 102         while 1:
 103                 n = ModalDialog(None)
 104                 if n == 1:
 105                         h = d.GetDialogItemAsControl(4)
 106                         return cr2lf(GetDialogItemText(h))
 107                 if n == 2: return None
 108
 109 def AskPassword(prompt,  default='', id=264, ok=None, cancel=None):
 110         """Display a PROMPT string and a text entry field with a DEFAULT string.
 111         The string is displayed as bullets only.
 112
 113         Return the contents of the text entry field when the user clicks the
 114         OK button or presses Return.
 115         Return None when the user clicks the Cancel button.
 116
 117         If omitted, DEFAULT is empty.
 118
 119         The PROMPT and DEFAULT strings, as well as the return value,
 120         can be at most 255 characters long.
 121         """
 122         d = GetNewDialog(id, -1)
 123         if not d:
 124                 print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
 125                 return
 126         h = d.GetDialogItemAsControl(3)
 127         SetDialogItemText(h, lf2cr(prompt))
 128         pwd = d.GetDialogItemAsControl(4)
 129         bullets = '\245'*len(default)
 130 ##      SetControlData(pwd, kControlEditTextPart, kControlEditTextTextTag, bullets)
 131         SetControlData(pwd, kControlEditTextPart, kControlEditTextPasswordTag, default)
 132         d.SelectDialogItemText(4, 0, 999)
 133         Ctl.SetKeyboardFocus(d.GetDialogWindow(), pwd, kControlEditTextPart)
 134         if ok != None:
 135                 h = d.GetDialogItemAsControl(1)
 136                 h.SetControlTitle(ok)
 137         if cancel != None:
 138                 h = d.GetDialogItemAsControl(2)
 139                 h.SetControlTitle(cancel)
 140         d.SetDialogDefaultItem(Dialogs.ok)
 141         d.SetDialogCancelItem(Dialogs.cancel)
 142         d.AutoSizeDialog()
 143         d.GetDialogWindow().ShowWindow()
 144         while 1:
 145                 n = ModalDialog(None)
 146                 if n == 1:
 147                         h = d.GetDialogItemAsControl(4)
 148                         return cr2lf(GetControlData(pwd, kControlEditTextPart, kControlEditTextPasswordTag))
 149                 if n == 2: return None
 150
 151 def AskYesNoCancel(question, default = 0, yes=None, no=None, cancel=None, id=262):
 152         """Display a QUESTION string which can be answered with Yes or No.
 153
 154         Return 1 when the user clicks the Yes button.
 155         Return 0 when the user clicks the No button.
 156         Return -1 when the user clicks the Cancel button.
 157
 158         When the user presses Return, the DEFAULT value is returned.
 159         If omitted, this is 0 (No).
 160
 161         The QUESTION string can be at most 255 characters.
 162         """
 163
 164         d = GetNewDialog(id, -1)
 165         if not d:
 166                 print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
 167                 return
 168         # Button assignments:
 169         # 1 = default (invisible)
 170         # 2 = Yes
 171         # 3 = No
 172         # 4 = Cancel
 173         # The question string is item 5
 174         h = d.GetDialogItemAsControl(5)
 175         SetDialogItemText(h, lf2cr(question))
 176         if yes != None:
 177                 if yes == '':
 178                         d.HideDialogItem(2)
 179                 else:
 180                         h = d.GetDialogItemAsControl(2)
 181                         h.SetControlTitle(yes)
 182         if no != None:
 183                 if no == '':
 184                         d.HideDialogItem(3)
 185                 else:
 186                         h = d.GetDialogItemAsControl(3)
 187                         h.SetControlTitle(no)
 188         if cancel != None:
 189                 if cancel == '':
 190                         d.HideDialogItem(4)
 191                 else:
 192                         h = d.GetDialogItemAsControl(4)
 193                         h.SetControlTitle(cancel)
 194         d.SetDialogCancelItem(4)
 195         if default == 1:
 196                 d.SetDialogDefaultItem(2)
 197         elif default == 0:
 198                 d.SetDialogDefaultItem(3)
 199         elif default == -1:
 200                 d.SetDialogDefaultItem(4)
 201         d.AutoSizeDialog()
 202         d.GetDialogWindow().ShowWindow()
 203         while 1:
 204                 n = ModalDialog(None)
 205                 if n == 1: return default
 206                 if n == 2: return 1
 207                 if n == 3: return 0
 208                 if n == 4: return -1
 209
 210
 211
 212
 213 screenbounds = Qd.qd.screenBits.bounds
 214 screenbounds = screenbounds[0]+4, screenbounds[1]+4, \
 215         screenbounds[2]-4, screenbounds[3]-4
 216
 217 kControlProgressBarIndeterminateTag = 'inde'    # from Controls.py
 218
 219
 220 class ProgressBar:
 221         def __init__(self, title="Working...", maxval=0, label="", id=263):
 222                 self.w = None
 223                 self.d = None
 224                 self.d = GetNewDialog(id, -1)
 225                 self.w = self.d.GetDialogWindow()
 226                 self.label(label)
 227                 self.title(title)
 228                 self.set(0, maxval)
 229                 self.d.AutoSizeDialog()
 230                 self.w.ShowWindow()
 231                 self.d.DrawDialog()
 232
 233         def __del__( self ):
 234                 if self.w:
 235                         self.w.BringToFront()
 236                         self.w.HideWindow()
 237                 del self.w
 238                 del self.d
 239
 240         def title(self, newstr=""):
 241                 """title(text) - Set title of progress window"""
 242                 self.w.BringToFront()
 243                 self.w.SetWTitle(newstr)
 244
 245         def label( self, *newstr ):
 246                 """label(text) - Set text in progress box"""
 247                 self.w.BringToFront()
 248                 if newstr:
 249                         self._label = lf2cr(newstr[0])
 250                 text_h = self.d.GetDialogItemAsControl(2)
 251                 SetDialogItemText(text_h, self._label)
 252
 253         def _update(self, value):
 254                 maxval = self.maxval
 255                 if maxval == 0:         # an indeterminate bar
 256                         Ctl.IdleControls(self.w)        # spin the barber pole
 257                 else:                           # a determinate bar
 258                         if maxval > 32767:
 259                                 value = int(value/(maxval/32767.0))
 260                                 maxval = 32767
 261                         progbar = self.d.GetDialogItemAsControl(3)
 262                         progbar.SetControlMaximum(maxval)
 263                         progbar.SetControlValue(value)  # set the bar length
 264
 265                 # Test for cancel button
 266                 ready, ev = Evt.WaitNextEvent( Events.mDownMask, 1  )
 267                 if ready :
 268                         what,msg,when,where,mod = ev
 269                         part = Win.FindWindow(where)[0]
 270                         if Dlg.IsDialogEvent(ev):
 271                                 ds = Dlg.DialogSelect(ev)
 272                                 if ds[0] and ds[1] == self.d and ds[-1] == 1:
 273                                         self.w.HideWindow()
 274                                         self.w = None
 275                                         self.d = None
 276                                         raise KeyboardInterrupt, ev
 277                         else:
 278                                 if part == 4:   # inDrag
 279                                         self.w.DragWindow(where, screenbounds)
 280                                 else:
 281                                         MacOS.HandleEvent(ev)
 282
 283
 284         def set(self, value, max=None):
 285                 """set(value) - Set progress bar position"""
 286                 if max != None:
 287                         self.maxval = max
 288                         bar = self.d.GetDialogItemAsControl(3)
 289                         if max <= 0:    # indeterminate bar
 290                                 bar.SetControlData(0,kControlProgressBarIndeterminateTag,'\x01')
 291                         else:                   # determinate bar
 292                                 bar.SetControlData(0,kControlProgressBarIndeterminateTag,'\x00')
 293                 if value < 0:
 294                         value = 0
 295                 elif value > self.maxval:
 296                         value = self.maxval
 297                 self.curval = value
 298                 self._update(value)
 299
 300         def inc(self, n=1):
 301                 """inc(amt) - Increment progress bar position"""
 302                 self.set(self.curval + n)
 303
 304 ARGV_ID=265
 305 ARGV_ITEM_OK=1
 306 ARGV_ITEM_CANCEL=2
 307 ARGV_OPTION_GROUP=3
 308 ARGV_OPTION_EXPLAIN=4
 309 ARGV_OPTION_VALUE=5
 310 ARGV_OPTION_ADD=6
 311 ARGV_COMMAND_GROUP=7
 312 ARGV_COMMAND_EXPLAIN=8
 313 ARGV_COMMAND_ADD=9
 314 ARGV_ADD_OLDFILE=10
 315 ARGV_ADD_NEWFILE=11
 316 ARGV_ADD_FOLDER=12
 317 ARGV_CMDLINE_GROUP=13
 318 ARGV_CMDLINE_DATA=14
 319
 320 ##def _myModalDialog(d):
 321 ##      while 1:
 322 ##              ready, ev = Evt.WaitNextEvent(0xffff, -1)
 323 ##              print 'DBG: WNE', ready, ev
 324 ##              if ready :
 325 ##                      what,msg,when,where,mod = ev
 326 ##                      part, window = Win.FindWindow(where)
 327 ##                      if Dlg.IsDialogEvent(ev):
 328 ##                              didit, dlgdone, itemdone = Dlg.DialogSelect(ev)
 329 ##                              print 'DBG: DialogSelect', didit, dlgdone, itemdone, d
 330 ##                              if didit and dlgdone == d:
 331 ##                                      return itemdone
 332 ##                      elif window == d.GetDialogWindow():
 333 ##                              d.GetDialogWindow().SelectWindow()
 334 ##                              if part == 4:   # inDrag
 335 ##                                              d.DragWindow(where, screenbounds)
 336 ##                              else:
 337 ##                                      MacOS.HandleEvent(ev)
 338 ##                      else:
 339 ##                              MacOS.HandleEvent(ev)
 340 ##
 341 def _setmenu(control, items):
 342                 mhandle = control.GetControlData_Handle(Controls.kControlMenuPart,
 343                                 Controls.kControlPopupButtonMenuHandleTag)
 344                 menu = Menu.as_Menu(mhandle)
 345                 for item in items:
 346                         if type(item) == type(()):
 347                                 label = item[0]
 348                         else:
 349                                 label = item
 350                         if label[-1] == '=' or label[-1] == ':':
 351                                 label = label[:-1]
 352                         menu.AppendMenu(label)
 353 ##              mhandle, mid = menu.getpopupinfo()
 354 ##              control.SetControlData_Handle(Controls.kControlMenuPart,
 355 ##                              Controls.kControlPopupButtonMenuHandleTag, mhandle)
 356                 control.SetControlMinimum(1)
 357                 control.SetControlMaximum(len(items)+1)
 358
 359 def _selectoption(d, optionlist, idx):
 360         if idx < 0 or idx >= len(optionlist):
 361                 MacOS.SysBeep()
 362                 return
 363         option = optionlist[idx]
 364         if type(option) == type(()):
 365                 if len(option) == 4:
 366                         help = option[2]
 367                 elif len(option) > 1:
 368                         help = option[-1]
 369                 else:
 370                         help = ''
 371         else:
 372                 help = ''
 373         h = d.GetDialogItemAsControl(ARGV_OPTION_EXPLAIN)
 374         if help and len(help) > 250:
 375                 help = help[:250] + '...'
 376         Dlg.SetDialogItemText(h, help)
 377         hasvalue = 0
 378         if type(option) == type(()):
 379                 label = option[0]
 380         else:
 381                 label = option
 382         if label[-1] == '=' or label[-1] == ':':
 383                 hasvalue = 1
 384         h = d.GetDialogItemAsControl(ARGV_OPTION_VALUE)
 385         Dlg.SetDialogItemText(h, '')
 386         if hasvalue:
 387                 d.ShowDialogItem(ARGV_OPTION_VALUE)
 388                 d.SelectDialogItemText(ARGV_OPTION_VALUE, 0, 0)
 389         else:
 390                 d.HideDialogItem(ARGV_OPTION_VALUE)
 391
 392
 393 def GetArgv(optionlist=None, commandlist=None, addoldfile=1, addnewfile=1, addfolder=1, id=ARGV_ID):
 394         d = GetNewDialog(id, -1)
 395         if not d:
 396                 print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
 397                 return
 398 #       h = d.GetDialogItemAsControl(3)
 399 #       SetDialogItemText(h, lf2cr(prompt))
 400 #       h = d.GetDialogItemAsControl(4)
 401 #       SetDialogItemText(h, lf2cr(default))
 402 #       d.SelectDialogItemText(4, 0, 999)
 403 #       d.SetDialogItem(4, 0, 255)
 404         if optionlist:
 405                 _setmenu(d.GetDialogItemAsControl(ARGV_OPTION_GROUP), optionlist)
 406                 _selectoption(d, optionlist, 0)
 407         else:
 408                 d.GetDialogItemAsControl(ARGV_OPTION_GROUP).DeactivateControl()
 409         if commandlist:
 410                 _setmenu(d.GetDialogItemAsControl(ARGV_COMMAND_GROUP), commandlist)
 411                 if type(commandlist[0]) == type(()) and len(commandlist[0]) > 1:
 412                         help = commandlist[0][-1]
 413                         h = d.GetDialogItemAsControl(ARGV_COMMAND_EXPLAIN)
 414                         Dlg.SetDialogItemText(h, help)
 415         else:
 416                 d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).DeactivateControl()
 417         if not addoldfile:
 418                 d.GetDialogItemAsControl(ARGV_ADD_OLDFILE).DeactivateControl()
 419         if not addnewfile:
 420                 d.GetDialogItemAsControl(ARGV_ADD_NEWFILE).DeactivateControl()
 421         if not addfolder:
 422                 d.GetDialogItemAsControl(ARGV_ADD_FOLDER).DeactivateControl()
 423         d.SetDialogDefaultItem(ARGV_ITEM_OK)
 424         d.SetDialogCancelItem(ARGV_ITEM_CANCEL)
 425         d.GetDialogWindow().ShowWindow()
 426         d.DrawDialog()
 427         if hasattr(MacOS, 'SchedParams'):
 428                 appsw = MacOS.SchedParams(1, 0)
 429         try:
 430                 while 1:
 431                         stringstoadd = []
 432                         n = ModalDialog(None)
 433                         if n == ARGV_ITEM_OK:
 434                                 break
 435                         elif n == ARGV_ITEM_CANCEL:
 436                                 raise SystemExit
 437                         elif n == ARGV_OPTION_GROUP:
 438                                 idx = d.GetDialogItemAsControl(ARGV_OPTION_GROUP).GetControlValue()-1
 439                                 _selectoption(d, optionlist, idx)
 440                         elif n == ARGV_OPTION_VALUE:
 441                                 pass
 442                         elif n == ARGV_OPTION_ADD:
 443                                 idx = d.GetDialogItemAsControl(ARGV_OPTION_GROUP).GetControlValue()-1
 444                                 if 0 <= idx < len(optionlist):
 445                                         option = optionlist[idx]
 446                                         if type(option) == type(()):
 447                                                 option = option[0]
 448                                         if option[-1] == '=' or option[-1] == ':':
 449                                                 option = option[:-1]
 450                                                 h = d.GetDialogItemAsControl(ARGV_OPTION_VALUE)
 451                                                 value = Dlg.GetDialogItemText(h)
 452                                         else:
 453                                                 value = ''
 454                                         if len(option) == 1:
 455                                                 stringtoadd = '-' + option
 456                                         else:
 457                                                 stringtoadd = '--' + option
 458                                         stringstoadd = [stringtoadd]
 459                                         if value:
 460                                                 stringstoadd.append(value)
 461                                 else:
 462                                         MacOS.SysBeep()
 463                         elif n == ARGV_COMMAND_GROUP:
 464                                 idx = d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).GetControlValue()-1
 465                                 if 0 <= idx < len(commandlist) and type(commandlist[idx]) == type(()) and \
 466                                                 len(commandlist[idx]) > 1:
 467                                         help = commandlist[idx][-1]
 468                                         h = d.GetDialogItemAsControl(ARGV_COMMAND_EXPLAIN)
 469                                         Dlg.SetDialogItemText(h, help)
 470                         elif n == ARGV_COMMAND_ADD:
 471                                 idx = d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).GetControlValue()-1
 472                                 if 0 <= idx < len(commandlist):
 473                                         command = commandlist[idx]
 474                                         if type(command) == type(()):
 475                                                 command = command[0]
 476                                         stringstoadd = [command]
 477                                 else:
 478                                         MacOS.SysBeep()
 479                         elif n == ARGV_ADD_OLDFILE:
 480                                 fss, ok = macfs.StandardGetFile()
 481                                 if ok:
 482                                         stringstoadd = [fss.as_pathname()]
 483                         elif n == ARGV_ADD_NEWFILE:
 484                                 fss, ok = macfs.StandardPutFile('')
 485                                 if ok:
 486                                         stringstoadd = [fss.as_pathname()]
 487                         elif n == ARGV_ADD_FOLDER:
 488                                 fss, ok = macfs.GetDirectory()
 489                                 if ok:
 490                                         stringstoadd = [fss.as_pathname()]
 491                         elif n == ARGV_CMDLINE_DATA:
 492                                 pass # Nothing to do
 493                         else:
 494                                 raise RuntimeError, "Unknown dialog item %d"%n
 495
 496                         for stringtoadd in stringstoadd:
 497                                 if '"' in stringtoadd or "'" in stringtoadd or " " in stringtoadd:
 498                                         stringtoadd = `stringtoadd`
 499                                 h = d.GetDialogItemAsControl(ARGV_CMDLINE_DATA)
 500                                 oldstr = GetDialogItemText(h)
 501                                 if oldstr and oldstr[-1] != ' ':
 502                                         oldstr = oldstr + ' '
 503                                 oldstr = oldstr + stringtoadd
 504                                 if oldstr[-1] != ' ':
 505                                         oldstr = oldstr + ' '
 506                                 SetDialogItemText(h, oldstr)
 507                                 d.SelectDialogItemText(ARGV_CMDLINE_DATA, 0x7fff, 0x7fff)
 508                 h = d.GetDialogItemAsControl(ARGV_CMDLINE_DATA)
 509                 oldstr = GetDialogItemText(h)
 510                 tmplist = string.split(oldstr)
 511                 newlist = []
 512                 while tmplist:
 513                         item = tmplist[0]
 514                         del tmplist[0]
 515                         if item[0] == '"':
 516                                 while item[-1] != '"':
 517                                         if not tmplist:
 518                                                 raise RuntimeError, "Unterminated quoted argument"
 519                                         item = item + ' ' + tmplist[0]
 520                                         del tmplist[0]
 521                                 item = item[1:-1]
 522                         if item[0] == "'":
 523                                 while item[-1] != "'":
 524                                         if not tmplist:
 525                                                 raise RuntimeError, "Unterminated quoted argument"
 526                                         item = item + ' ' + tmplist[0]
 527                                         del tmplist[0]
 528                                 item = item[1:-1]
 529                         newlist.append(item)
 530                 return newlist
 531         finally:
 532                 if hasattr(MacOS, 'SchedParams'):
 533                         apply(MacOS.SchedParams, appsw)
 534                 del d
 535
 536 def test():
 537         import time, sys
 538
 539         Message("Testing EasyDialogs.")
 540         optionlist = (('v', 'Verbose'), ('verbose', 'Verbose as long option'),
 541                                 ('flags=', 'Valued option'), ('f:', 'Short valued option'))
 542         commandlist = (('start', 'Start something'), ('stop', 'Stop something'))
 543         argv = GetArgv(optionlist=optionlist, commandlist=commandlist, addoldfile=0)
 544         for i in range(len(argv)):
 545                 print 'arg[%d] = %s'%(i, `argv[i]`)
 546         print 'Type return to continue - ',
 547         sys.stdin.readline()
 548         ok = AskYesNoCancel("Do you want to proceed?")
 549         ok = AskYesNoCancel("Do you want to identify?", yes="Identify", no="No")
 550         if ok > 0:
 551                 s = AskString("Enter your first name", "Joe")
 552                 s2 = AskPassword("Okay %s, tell us your nickname"%s, s, cancel="None")
 553                 if not s2:
 554                         Message("%s has no secret nickname"%s)
 555                 else:
 556                         Message("Hello everybody!!\nThe secret nickname of %s is %s!!!"%(s, s2))
 557         text = ( "Working Hard...", "Hardly Working..." ,
 558                         "So far, so good!", "Keep on truckin'" )
 559         bar = ProgressBar("Progress, progress...", 0, label="Ramping up...")
 560         try:
 561                 if hasattr(MacOS, 'SchedParams'):
 562                         appsw = MacOS.SchedParams(1, 0)
 563                 for i in xrange(20):
 564                         bar.inc()
 565                         time.sleep(0.05)
 566                 bar.set(0,100)
 567                 for i in xrange(100):
 568                         bar.set(i)
 569                         time.sleep(0.05)
 570                         if i % 10 == 0:
 571                                 bar.label(text[(i/10) % 4])
 572                 bar.label("Done.")
 573                 time.sleep(1.0)         # give'em a chance to see "Done."
 574         finally:
 575                 del bar
 576                 if hasattr(MacOS, 'SchedParams'):
 577                         apply(MacOS.SchedParams, appsw)
 578
 579 if __name__ == '__main__':
 580         try:
 581                 test()
 582         except KeyboardInterrupt:
 583                 Message("Operation Canceled.")
 584