cpython/Lib/plat-mac/EasyDialogs.py

"""Easy to use dialogs.

Message(msg) -- display a message and an OK button.
AskString(prompt, default) -- ask for a string, display OK and Cancel buttons.
AskPassword(prompt, default) -- like AskString(), but shows text as bullets.
AskYesNoCancel(question, default) -- display a question and Yes, No and Cancel buttons.
GetArgv(optionlist, commandlist) -- fill a sys.argv-like list using a dialog
AskFileForOpen(...) -- Ask the user for an existing file
AskFileForSave(...) -- Ask the user for an output file
AskFolder(...) -- Ask the user to select a folder
bar = Progress(label, maxvalue) -- Display a progress bar
bar.set(value) -- Set value
bar.inc( *amount ) -- increment value by amount (default=1)
bar.label( *newlabel ) -- get or set text label.

More documentation in each function.
This module uses DLOG resources 260 and on.
Based upon STDWIN dialogs with the same names and functions.
"""

from Carbon.Dlg import GetNewDialog, SetDialogItemText, GetDialogItemText, ModalDialog
from Carbon import Qd
from Carbon import QuickDraw
from Carbon import Dialogs
from Carbon import Windows
from Carbon import Dlg,Win,Evt,Events # sdm7g
from Carbon import Ctl
from Carbon import Controls
from Carbon import Menu
from Carbon import AE
import Nav
import MacOS
import string
from Carbon.ControlAccessor import *    # Also import Controls constants
import Carbon.File
import macresource
import os
import sys

__all__ = ['Message', 'AskString', 'AskPassword', 'AskYesNoCancel',
        'GetArgv', 'AskFileForOpen', 'AskFileForSave', 'AskFolder',
        'Progress']

_initialized = 0

def _initialize():
        global _initialized
        if _initialized: return
        macresource.need("DLOG", 260, "dialogs.rsrc", __name__)

def _interact():
        """Make sure the application is in the foreground"""
        AE.AEInteractWithUser(50000000)

def cr2lf(text):
        if '\r' in text:
                text = string.join(string.split(text, '\r'), '\n')
        return text

def lf2cr(text):
        if '\n' in text:
                text = string.join(string.split(text, '\n'), '\r')
        if len(text) > 253:
                text = text[:253] + '\311'
        return text

def Message(msg, id=260, ok=None):
        """Display a MESSAGE string.

        Return when the user clicks the OK button or presses Return.

        The MESSAGE string can be at most 255 characters long.
        """
        _initialize()
        _interact()
        d = GetNewDialog(id, -1)
        if not d:
                print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
                return
        h = d.GetDialogItemAsControl(2)
        SetDialogItemText(h, lf2cr(msg))
        if ok != None:
                h = d.GetDialogItemAsControl(1)
                h.SetControlTitle(ok)
        d.SetDialogDefaultItem(1)
        d.AutoSizeDialog()
        d.GetDialogWindow().ShowWindow()
        while 1:
                n = ModalDialog(None)
                if n == 1:
                        return


def AskString(prompt, default = "", id=261, ok=None, cancel=None):
        """Display a PROMPT string and a text entry field with a DEFAULT string.

        Return the contents of the text entry field when the user clicks the
        OK button or presses Return.
        Return None when the user clicks the Cancel button.

        If omitted, DEFAULT is empty.

        The PROMPT and DEFAULT strings, as well as the return value,
        can be at most 255 characters long.
        """

        _initialize()
        _interact()
        d = GetNewDialog(id, -1)
        if not d:
                print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
                return
        h = d.GetDialogItemAsControl(3)
        SetDialogItemText(h, lf2cr(prompt))
        h = d.GetDialogItemAsControl(4)
        SetDialogItemText(h, lf2cr(default))
        d.SelectDialogItemText(4, 0, 999)
#       d.SetDialogItem(4, 0, 255)
        if ok != None:
                h = d.GetDialogItemAsControl(1)
                h.SetControlTitle(ok)
        if cancel != None:
                h = d.GetDialogItemAsControl(2)
                h.SetControlTitle(cancel)
        d.SetDialogDefaultItem(1)
        d.SetDialogCancelItem(2)
        d.AutoSizeDialog()
        d.GetDialogWindow().ShowWindow()
        while 1:
                n = ModalDialog(None)
                if n == 1:
                        h = d.GetDialogItemAsControl(4)
                        return cr2lf(GetDialogItemText(h))
                if n == 2: return None

def AskPassword(prompt,  default='', id=264, ok=None, cancel=None):
        """Display a PROMPT string and a text entry field with a DEFAULT string.
        The string is displayed as bullets only.

        Return the contents of the text entry field when the user clicks the
        OK button or presses Return.
        Return None when the user clicks the Cancel button.

        If omitted, DEFAULT is empty.

        The PROMPT and DEFAULT strings, as well as the return value,
        can be at most 255 characters long.
        """
        _initialize()
        _interact()
        d = GetNewDialog(id, -1)
        if not d:
                print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
                return
        h = d.GetDialogItemAsControl(3)
        SetDialogItemText(h, lf2cr(prompt))
        pwd = d.GetDialogItemAsControl(4)
        bullets = '\245'*len(default)
##      SetControlData(pwd, kControlEditTextPart, kControlEditTextTextTag, bullets)
        SetControlData(pwd, kControlEditTextPart, kControlEditTextPasswordTag, default)
        d.SelectDialogItemText(4, 0, 999)
        Ctl.SetKeyboardFocus(d.GetDialogWindow(), pwd, kControlEditTextPart)
        if ok != None:
                h = d.GetDialogItemAsControl(1)
                h.SetControlTitle(ok)
        if cancel != None:
                h = d.GetDialogItemAsControl(2)
                h.SetControlTitle(cancel)
        d.SetDialogDefaultItem(Dialogs.ok)
        d.SetDialogCancelItem(Dialogs.cancel)
        d.AutoSizeDialog()
        d.GetDialogWindow().ShowWindow()
        while 1:
                n = ModalDialog(None)
                if n == 1:
                        h = d.GetDialogItemAsControl(4)
                        return cr2lf(GetControlData(pwd, kControlEditTextPart, kControlEditTextPasswordTag))
                if n == 2: return None

def AskYesNoCancel(question, default = 0, yes=None, no=None, cancel=None, id=262):
        """Display a QUESTION string which can be answered with Yes or No.

        Return 1 when the user clicks the Yes button.
        Return 0 when the user clicks the No button.
        Return -1 when the user clicks the Cancel button.

        When the user presses Return, the DEFAULT value is returned.
        If omitted, this is 0 (No).

        The QUESTION string can be at most 255 characters.
        """

        _initialize()
        _interact()
        d = GetNewDialog(id, -1)
        if not d:
                print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
                return
        # Button assignments:
        # 1 = default (invisible)
        # 2 = Yes
        # 3 = No
        # 4 = Cancel
        # The question string is item 5
        h = d.GetDialogItemAsControl(5)
        SetDialogItemText(h, lf2cr(question))
        if yes != None:
                if yes == '':
                        d.HideDialogItem(2)
                else:
                        h = d.GetDialogItemAsControl(2)
                        h.SetControlTitle(yes)
        if no != None:
                if no == '':
                        d.HideDialogItem(3)
                else:
                        h = d.GetDialogItemAsControl(3)
                        h.SetControlTitle(no)
        if cancel != None:
                if cancel == '':
                        d.HideDialogItem(4)
                else:
                        h = d.GetDialogItemAsControl(4)
                        h.SetControlTitle(cancel)
        d.SetDialogCancelItem(4)
        if default == 1:
                d.SetDialogDefaultItem(2)
        elif default == 0:
                d.SetDialogDefaultItem(3)
        elif default == -1:
                d.SetDialogDefaultItem(4)
        d.AutoSizeDialog()
        d.GetDialogWindow().ShowWindow()
        while 1:
                n = ModalDialog(None)
                if n == 1: return default
                if n == 2: return 1
                if n == 3: return 0
                if n == 4: return -1




screenbounds = Qd.GetQDGlobalsScreenBits().bounds
screenbounds = screenbounds[0]+4, screenbounds[1]+4, \
        screenbounds[2]-4, screenbounds[3]-4

kControlProgressBarIndeterminateTag = 'inde'    # from Controls.py


class ProgressBar:
        def __init__(self, title="Working...", maxval=0, label="", id=263):
                self.w = None
                self.d = None
                _initialize()
                self.d = GetNewDialog(id, -1)
                self.w = self.d.GetDialogWindow()
                self.label(label)
                self.title(title)
                self.set(0, maxval)
                self.d.AutoSizeDialog()
                self.w.ShowWindow()
                self.d.DrawDialog()

        def __del__( self ):
                if self.w:
                        self.w.BringToFront()
                        self.w.HideWindow()
                del self.w
                del self.d

        def title(self, newstr=""):
                """title(text) - Set title of progress window"""
                self.w.BringToFront()
                self.w.SetWTitle(newstr)

        def label( self, *newstr ):
                """label(text) - Set text in progress box"""
                self.w.BringToFront()
                if newstr:
                        self._label = lf2cr(newstr[0])
                text_h = self.d.GetDialogItemAsControl(2)
                SetDialogItemText(text_h, self._label)

        def _update(self, value):
                maxval = self.maxval
                if maxval == 0:         # an indeterminate bar
                        Ctl.IdleControls(self.w)        # spin the barber pole
                else:                           # a determinate bar
                        if maxval > 32767:
                                value = int(value/(maxval/32767.0))
                                maxval = 32767
                        maxval = int(maxval)
                        value = int(value)
                        progbar = self.d.GetDialogItemAsControl(3)
                        progbar.SetControlMaximum(maxval)
                        progbar.SetControlValue(value)  # set the bar length

                # Test for cancel button
                ready, ev = Evt.WaitNextEvent( Events.mDownMask, 1  )
                if ready :
                        what,msg,when,where,mod = ev
                        part = Win.FindWindow(where)[0]
                        if Dlg.IsDialogEvent(ev):
                                ds = Dlg.DialogSelect(ev)
                                if ds[0] and ds[1] == self.d and ds[-1] == 1:
                                        self.w.HideWindow()
                                        self.w = None
                                        self.d = None
                                        raise KeyboardInterrupt, ev
                        else:
                                if part == 4:   # inDrag
                                        self.w.DragWindow(where, screenbounds)
                                else:
                                        MacOS.HandleEvent(ev)


        def set(self, value, max=None):
                """set(value) - Set progress bar position"""
                if max != None:
                        self.maxval = max
                        bar = self.d.GetDialogItemAsControl(3)
                        if max <= 0:    # indeterminate bar
                                bar.SetControlData(0,kControlProgressBarIndeterminateTag,'\x01')
                        else:                   # determinate bar
                                bar.SetControlData(0,kControlProgressBarIndeterminateTag,'\x00')
                if value < 0:
                        value = 0
                elif value > self.maxval:
                        value = self.maxval
                self.curval = value
                self._update(value)

        def inc(self, n=1):
                """inc(amt) - Increment progress bar position"""
                self.set(self.curval + n)

ARGV_ID=265
ARGV_ITEM_OK=1
ARGV_ITEM_CANCEL=2
ARGV_OPTION_GROUP=3
ARGV_OPTION_EXPLAIN=4
ARGV_OPTION_VALUE=5
ARGV_OPTION_ADD=6
ARGV_COMMAND_GROUP=7
ARGV_COMMAND_EXPLAIN=8
ARGV_COMMAND_ADD=9
ARGV_ADD_OLDFILE=10
ARGV_ADD_NEWFILE=11
ARGV_ADD_FOLDER=12
ARGV_CMDLINE_GROUP=13
ARGV_CMDLINE_DATA=14

##def _myModalDialog(d):
##      while 1:
##              ready, ev = Evt.WaitNextEvent(0xffff, -1)
##              print 'DBG: WNE', ready, ev
##              if ready :
##                      what,msg,when,where,mod = ev
##                      part, window = Win.FindWindow(where)
##                      if Dlg.IsDialogEvent(ev):
##                              didit, dlgdone, itemdone = Dlg.DialogSelect(ev)
##                              print 'DBG: DialogSelect', didit, dlgdone, itemdone, d
##                              if didit and dlgdone == d:
##                                      return itemdone
##                      elif window == d.GetDialogWindow():
##                              d.GetDialogWindow().SelectWindow()
##                              if part == 4:   # inDrag
##                                              d.DragWindow(where, screenbounds)
##                              else:
##                                      MacOS.HandleEvent(ev)
##                      else:
##                              MacOS.HandleEvent(ev)
##
def _setmenu(control, items):
                mhandle = control.GetControlData_Handle(Controls.kControlMenuPart,
                                Controls.kControlPopupButtonMenuHandleTag)
                menu = Menu.as_Menu(mhandle)
                for item in items:
                        if type(item) == type(()):
                                label = item[0]
                        else:
                                label = item
                        if label[-1] == '=' or label[-1] == ':':
                                label = label[:-1]
                        menu.AppendMenu(label)
##              mhandle, mid = menu.getpopupinfo()
##              control.SetControlData_Handle(Controls.kControlMenuPart,
##                              Controls.kControlPopupButtonMenuHandleTag, mhandle)
                control.SetControlMinimum(1)
                control.SetControlMaximum(len(items)+1)

def _selectoption(d, optionlist, idx):
        if idx < 0 or idx >= len(optionlist):
                MacOS.SysBeep()
                return
        option = optionlist[idx]
        if type(option) == type(()):
                if len(option) == 4:
                        help = option[2]
                elif len(option) > 1:
                        help = option[-1]
                else:
                        help = ''
        else:
                help = ''
        h = d.GetDialogItemAsControl(ARGV_OPTION_EXPLAIN)
        if help and len(help) > 250:
                help = help[:250] + '...'
        Dlg.SetDialogItemText(h, help)
        hasvalue = 0
        if type(option) == type(()):
                label = option[0]
        else:
                label = option
        if label[-1] == '=' or label[-1] == ':':
                hasvalue = 1
        h = d.GetDialogItemAsControl(ARGV_OPTION_VALUE)
        Dlg.SetDialogItemText(h, '')
        if hasvalue:
                d.ShowDialogItem(ARGV_OPTION_VALUE)
                d.SelectDialogItemText(ARGV_OPTION_VALUE, 0, 0)
        else:
                d.HideDialogItem(ARGV_OPTION_VALUE)


def GetArgv(optionlist=None, commandlist=None, addoldfile=1, addnewfile=1, addfolder=1, id=ARGV_ID):
        _initialize()
        _interact()
        d = GetNewDialog(id, -1)
        if not d:
                print "EasyDialogs: Can't get DLOG resource with id =", id, " (missing resource file?)"
                return
#       h = d.GetDialogItemAsControl(3)
#       SetDialogItemText(h, lf2cr(prompt))
#       h = d.GetDialogItemAsControl(4)
#       SetDialogItemText(h, lf2cr(default))
#       d.SelectDialogItemText(4, 0, 999)
#       d.SetDialogItem(4, 0, 255)
        if optionlist:
                _setmenu(d.GetDialogItemAsControl(ARGV_OPTION_GROUP), optionlist)
                _selectoption(d, optionlist, 0)
        else:
                d.GetDialogItemAsControl(ARGV_OPTION_GROUP).DeactivateControl()
        if commandlist:
                _setmenu(d.GetDialogItemAsControl(ARGV_COMMAND_GROUP), commandlist)
                if type(commandlist[0]) == type(()) and len(commandlist[0]) > 1:
                        help = commandlist[0][-1]
                        h = d.GetDialogItemAsControl(ARGV_COMMAND_EXPLAIN)
                        Dlg.SetDialogItemText(h, help)
        else:
                d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).DeactivateControl()
        if not addoldfile:
                d.GetDialogItemAsControl(ARGV_ADD_OLDFILE).DeactivateControl()
        if not addnewfile:
                d.GetDialogItemAsControl(ARGV_ADD_NEWFILE).DeactivateControl()
        if not addfolder:
                d.GetDialogItemAsControl(ARGV_ADD_FOLDER).DeactivateControl()
        d.SetDialogDefaultItem(ARGV_ITEM_OK)
        d.SetDialogCancelItem(ARGV_ITEM_CANCEL)
        d.GetDialogWindow().ShowWindow()
        d.DrawDialog()
        if hasattr(MacOS, 'SchedParams'):
                appsw = MacOS.SchedParams(1, 0)
        try:
                while 1:
                        stringstoadd = []
                        n = ModalDialog(None)
                        if n == ARGV_ITEM_OK:
                                break
                        elif n == ARGV_ITEM_CANCEL:
                                raise SystemExit
                        elif n == ARGV_OPTION_GROUP:
                                idx = d.GetDialogItemAsControl(ARGV_OPTION_GROUP).GetControlValue()-1
                                _selectoption(d, optionlist, idx)
                        elif n == ARGV_OPTION_VALUE:
                                pass
                        elif n == ARGV_OPTION_ADD:
                                idx = d.GetDialogItemAsControl(ARGV_OPTION_GROUP).GetControlValue()-1
                                if 0 <= idx < len(optionlist):
                                        option = optionlist[idx]
                                        if type(option) == type(()):
                                                option = option[0]
                                        if option[-1] == '=' or option[-1] == ':':
                                                option = option[:-1]
                                                h = d.GetDialogItemAsControl(ARGV_OPTION_VALUE)
                                                value = Dlg.GetDialogItemText(h)
                                        else:
                                                value = ''
                                        if len(option) == 1:
                                                stringtoadd = '-' + option
                                        else:
                                                stringtoadd = '--' + option
                                        stringstoadd = [stringtoadd]
                                        if value:
                                                stringstoadd.append(value)
                                else:
                                        MacOS.SysBeep()
                        elif n == ARGV_COMMAND_GROUP:
                                idx = d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).GetControlValue()-1
                                if 0 <= idx < len(commandlist) and type(commandlist[idx]) == type(()) and \
                                                len(commandlist[idx]) > 1:
                                        help = commandlist[idx][-1]
                                        h = d.GetDialogItemAsControl(ARGV_COMMAND_EXPLAIN)
                                        Dlg.SetDialogItemText(h, help)
                        elif n == ARGV_COMMAND_ADD:
                                idx = d.GetDialogItemAsControl(ARGV_COMMAND_GROUP).GetControlValue()-1
                                if 0 <= idx < len(commandlist):
                                        command = commandlist[idx]
                                        if type(command) == type(()):
                                                command = command[0]
                                        stringstoadd = [command]
                                else:
                                        MacOS.SysBeep()
                        elif n == ARGV_ADD_OLDFILE:
                                pathname = AskFileForOpen()
                                if pathname:
                                        stringstoadd = [pathname]
                        elif n == ARGV_ADD_NEWFILE:
                                pathname = AskFileForSave()
                                if pathname:
                                        stringstoadd = [pathname]
                        elif n == ARGV_ADD_FOLDER:
                                pathname = AskFolder()
                                if pathname:
                                        stringstoadd = [pathname]
                        elif n == ARGV_CMDLINE_DATA:
                                pass # Nothing to do
                        else:
                                raise RuntimeError, "Unknown dialog item %d"%n

                        for stringtoadd in stringstoadd:
                                if '"' in stringtoadd or "'" in stringtoadd or " " in stringtoadd:
                                        stringtoadd = `stringtoadd`
                                h = d.GetDialogItemAsControl(ARGV_CMDLINE_DATA)
                                oldstr = GetDialogItemText(h)
                                if oldstr and oldstr[-1] != ' ':
                                        oldstr = oldstr + ' '
                                oldstr = oldstr + stringtoadd
                                if oldstr[-1] != ' ':
                                        oldstr = oldstr + ' '
                                SetDialogItemText(h, oldstr)
                                d.SelectDialogItemText(ARGV_CMDLINE_DATA, 0x7fff, 0x7fff)
                h = d.GetDialogItemAsControl(ARGV_CMDLINE_DATA)
                oldstr = GetDialogItemText(h)
                tmplist = string.split(oldstr)
                newlist = []
                while tmplist:
                        item = tmplist[0]
                        del tmplist[0]
                        if item[0] == '"':
                                while item[-1] != '"':
                                        if not tmplist:
                                                raise RuntimeError, "Unterminated quoted argument"
                                        item = item + ' ' + tmplist[0]
                                        del tmplist[0]
                                item = item[1:-1]
                        if item[0] == "'":
                                while item[-1] != "'":
                                        if not tmplist:
                                                raise RuntimeError, "Unterminated quoted argument"
                                        item = item + ' ' + tmplist[0]
                                        del tmplist[0]
                                item = item[1:-1]
                        newlist.append(item)
                return newlist
        finally:
                if hasattr(MacOS, 'SchedParams'):
                        MacOS.SchedParams(*appsw)
                del d

def _process_Nav_args(dftflags, **args):
        import aepack
        import Carbon.AE
        import Carbon.File
        for k in args.keys():
                if args[k] is None:
                        del args[k]
        # Set some defaults, and modify some arguments
        if not args.has_key('dialogOptionFlags'):
                args['dialogOptionFlags'] = dftflags
        if args.has_key('defaultLocation') and \
                        not isinstance(args['defaultLocation'], Carbon.AE.AEDesc):
                defaultLocation = args['defaultLocation']
                if isinstance(defaultLocation, (Carbon.File.FSSpec, Carbon.File.FSRef)):
                        args['defaultLocation'] = aepack.pack(defaultLocation)
                else:
                        defaultLocation = Carbon.File.FSRef(defaultLocation)
                        args['defaultLocation'] = aepack.pack(defaultLocation)
        if args.has_key('typeList') and not isinstance(args['typeList'], Carbon.Res.ResourceType):
                typeList = args['typeList'][:]
                # Workaround for OSX typeless files:
                if 'TEXT' in typeList and not '\0\0\0\0' in typeList:
                        typeList = typeList + ('\0\0\0\0',)
                data = 'Pyth' + struct.pack("hh", 0, len(typeList))
                for type in typeList:
                        data = data+type
                args['typeList'] = Carbon.Res.Handle(data)
        tpwanted = str
        if args.has_key('wanted'):
                tpwanted = args['wanted']
                del args['wanted']
        return args, tpwanted

def _dummy_Nav_eventproc(msg, data):
        pass

_default_Nav_eventproc = _dummy_Nav_eventproc

def SetDefaultEventProc(proc):
        global _default_Nav_eventproc
        rv = _default_Nav_eventproc
        if proc is None:
                proc = _dummy_Nav_eventproc
        _default_Nav_eventproc = proc
        return rv

def AskFileForOpen(
                message=None,
                typeList=None,
                # From here on the order is not documented
                version=None,
                defaultLocation=None,
                dialogOptionFlags=None,
                location=None,
                clientName=None,
                windowTitle=None,
                actionButtonLabel=None,
                cancelButtonLabel=None,
                preferenceKey=None,
                popupExtension=None,
                eventProc=_dummy_Nav_eventproc,
                previewProc=None,
                filterProc=None,
                wanted=None,
                multiple=None):
        """Display a dialog asking the user for a file to open.

        wanted is the return type wanted: FSSpec, FSRef, unicode or string (default)
        the other arguments can be looked up in Apple's Navigation Services documentation"""

        default_flags = 0x56 # Or 0xe4?
        args, tpwanted = _process_Nav_args(default_flags, version=version,
                defaultLocation=defaultLocation, dialogOptionFlags=dialogOptionFlags,
                location=location,clientName=clientName,windowTitle=windowTitle,
                actionButtonLabel=actionButtonLabel,cancelButtonLabel=cancelButtonLabel,
                message=message,preferenceKey=preferenceKey,
                popupExtension=popupExtension,eventProc=eventProc,previewProc=previewProc,
                filterProc=filterProc,typeList=typeList,wanted=wanted,multiple=multiple)
        _interact()
        try:
                rr = Nav.NavChooseFile(args)
                good = 1
        except Nav.error, arg:
                if arg[0] != -128: # userCancelledErr
                        raise Nav.error, arg
                return None
        if not rr.validRecord or not rr.selection:
                return None
        if issubclass(tpwanted, Carbon.File.FSRef):
                return tpwanted(rr.selection_fsr[0])
        if issubclass(tpwanted, Carbon.File.FSSpec):
                return tpwanted(rr.selection[0])
        if issubclass(tpwanted, str):
                return tpwanted(rr.selection_fsr[0].as_pathname())
        if issubclass(tpwanted, unicode):
                return tpwanted(rr.selection_fsr[0].as_pathname(), 'utf8')
        raise TypeError, "Unknown value for argument 'wanted': %s" % repr(tpwanted)

def AskFileForSave(
                message=None,
                savedFileName=None,
                # From here on the order is not documented
                version=None,
                defaultLocation=None,
                dialogOptionFlags=None,
                location=None,
                clientName=None,
                windowTitle=None,
                actionButtonLabel=None,
                cancelButtonLabel=None,
                preferenceKey=None,
                popupExtension=None,
                eventProc=_dummy_Nav_eventproc,
                fileType=None,
                fileCreator=None,
                wanted=None,
                multiple=None):
        """Display a dialog asking the user for a filename to save to.

        wanted is the return type wanted: FSSpec, FSRef, unicode or string (default)
        the other arguments can be looked up in Apple's Navigation Services documentation"""


        default_flags = 0x07
        args, tpwanted = _process_Nav_args(default_flags, version=version,
                defaultLocation=defaultLocation, dialogOptionFlags=dialogOptionFlags,
                location=location,clientName=clientName,windowTitle=windowTitle,
                actionButtonLabel=actionButtonLabel,cancelButtonLabel=cancelButtonLabel,
                savedFileName=savedFileName,message=message,preferenceKey=preferenceKey,
                popupExtension=popupExtension,eventProc=eventProc,fileType=fileType,
                fileCreator=fileCreator,wanted=wanted,multiple=multiple)
        _interact()
        try:
                rr = Nav.NavPutFile(args)
                good = 1
        except Nav.error, arg:
                if arg[0] != -128: # userCancelledErr
                        raise Nav.error, arg
                return None
        if not rr.validRecord or not rr.selection:
                return None
        if issubclass(tpwanted, Carbon.File.FSRef):
                raise TypeError, "Cannot pass wanted=FSRef to AskFileForSave"
        if issubclass(tpwanted, Carbon.File.FSSpec):
                return tpwanted(rr.selection[0])
        if issubclass(tpwanted, (str, unicode)):
                if sys.platform == 'mac':
                        fullpath = rr.selection[0].as_pathname()
                else:
                        # This is gross, and probably incorrect too
                        vrefnum, dirid, name = rr.selection[0].as_tuple()
                        pardir_fss = Carbon.File.FSSpec((vrefnum, dirid, ''))
                        pardir_fsr = Carbon.File.FSRef(pardir_fss)
                        pardir_path = pardir_fsr.FSRefMakePath()  # This is utf-8
                        name_utf8 = unicode(name, 'macroman').encode('utf8')
                        fullpath = os.path.join(pardir_path, name_utf8)
                if issubclass(tpwanted, unicode):
                        return unicode(fullpath, 'utf8')
                return tpwanted(fullpath)
        raise TypeError, "Unknown value for argument 'wanted': %s" % repr(tpwanted)

def AskFolder(
                message=None,
                # From here on the order is not documented
                version=None,
                defaultLocation=None,
                dialogOptionFlags=None,
                location=None,
                clientName=None,
                windowTitle=None,
                actionButtonLabel=None,
                cancelButtonLabel=None,
                preferenceKey=None,
                popupExtension=None,
                eventProc=_dummy_Nav_eventproc,
                filterProc=None,
                wanted=None,
                multiple=None):
        """Display a dialog asking the user for select a folder.

        wanted is the return type wanted: FSSpec, FSRef, unicode or string (default)
        the other arguments can be looked up in Apple's Navigation Services documentation"""

        default_flags = 0x17
        args, tpwanted = _process_Nav_args(default_flags, version=version,
                defaultLocation=defaultLocation, dialogOptionFlags=dialogOptionFlags,
                location=location,clientName=clientName,windowTitle=windowTitle,
                actionButtonLabel=actionButtonLabel,cancelButtonLabel=cancelButtonLabel,
                message=message,preferenceKey=preferenceKey,
                popupExtension=popupExtension,eventProc=eventProc,filterProc=filterProc,
                wanted=wanted,multiple=multiple)
        _interact()
        try:
                rr = Nav.NavChooseFolder(args)
                good = 1
        except Nav.error, arg:
                if arg[0] != -128: # userCancelledErr
                        raise Nav.error, arg
                return None
        if not rr.validRecord or not rr.selection:
                return None
        if issubclass(tpwanted, Carbon.File.FSRef):
                return tpwanted(rr.selection_fsr[0])
        if issubclass(tpwanted, Carbon.File.FSSpec):
                return tpwanted(rr.selection[0])
        if issubclass(tpwanted, str):
                return tpwanted(rr.selection_fsr[0].as_pathname())
        if issubclass(tpwanted, unicode):
                return tpwanted(rr.selection_fsr[0].as_pathname(), 'utf8')
        raise TypeError, "Unknown value for argument 'wanted': %s" % repr(tpwanted)


def test():
        import time

        Message("Testing EasyDialogs.")
        optionlist = (('v', 'Verbose'), ('verbose', 'Verbose as long option'),
                                ('flags=', 'Valued option'), ('f:', 'Short valued option'))
        commandlist = (('start', 'Start something'), ('stop', 'Stop something'))
        argv = GetArgv(optionlist=optionlist, commandlist=commandlist, addoldfile=0)
        Message("Command line: %s"%' '.join(argv))
        for i in range(len(argv)):
                print 'arg[%d] = %s'%(i, `argv[i]`)
        ok = AskYesNoCancel("Do you want to proceed?")
        ok = AskYesNoCancel("Do you want to identify?", yes="Identify", no="No")
        if ok > 0:
                s = AskString("Enter your first name", "Joe")
                s2 = AskPassword("Okay %s, tell us your nickname"%s, s, cancel="None")
                if not s2:
                        Message("%s has no secret nickname"%s)
                else:
                        Message("Hello everybody!!\nThe secret nickname of %s is %s!!!"%(s, s2))
        else:
                s = 'Anonymous'
        rv = AskFileForOpen(message="Gimme a file, %s"%s, wanted=Carbon.File.FSSpec)
        Message("rv: %s"%rv)
        rv = AskFileForSave(wanted=Carbon.File.FSRef, savedFileName="%s.txt"%s)
        Message("rv.as_pathname: %s"%rv.as_pathname())
        rv = AskFolder()
        Message("Folder name: %s"%rv)
        text = ( "Working Hard...", "Hardly Working..." ,
                        "So far, so good!", "Keep on truckin'" )
        bar = ProgressBar("Progress, progress...", 0, label="Ramping up...")
        try:
                if hasattr(MacOS, 'SchedParams'):
                        appsw = MacOS.SchedParams(1, 0)
                for i in xrange(20):
                        bar.inc()
                        time.sleep(0.05)
                bar.set(0,100)
                for i in xrange(100):
                        bar.set(i)
                        time.sleep(0.05)
                        if i % 10 == 0:
                                bar.label(text[(i/10) % 4])
                bar.label("Done.")
                time.sleep(1.0)         # give'em a chance to see "Done."
        finally:
                del bar
                if hasattr(MacOS, 'SchedParams'):
                        MacOS.SchedParams(*appsw)

if __name__ == '__main__':
        try:
                test()
        except KeyboardInterrupt:
                Message("Operation Canceled.")