]> granicus.if.org Git - python/commitdiff
Moved here from lib-toolbox, where they should never have been in the first place...
authorJack Jansen <jack.jansen@cwi.nl>
Sun, 19 Aug 2001 22:05:06 +0000 (22:05 +0000)
committerJack Jansen <jack.jansen@cwi.nl>
Sun, 19 Aug 2001 22:05:06 +0000 (22:05 +0000)
Mac/Lib/MiniAEFrame.py [new file with mode: 0644]
Mac/Lib/aepack.py [new file with mode: 0644]
Mac/Lib/aetools.py [new file with mode: 0644]
Mac/Lib/aetypes.py [new file with mode: 0644]

diff --git a/Mac/Lib/MiniAEFrame.py b/Mac/Lib/MiniAEFrame.py
new file mode 100644 (file)
index 0000000..fbb6f1b
--- /dev/null
@@ -0,0 +1,194 @@
+"""MiniAEFrame - A minimal AppleEvent Application framework.
+
+There are two classes:
+       AEServer -- a mixin class offering nice AE handling.
+       MiniApplication -- a very minimal alternative to FrameWork.py,
+               only suitable for the simplest of AppleEvent servers.
+"""
+
+import sys
+import traceback
+import MacOS
+import AE
+from AppleEvents import *
+import Evt
+from Events import *
+import Menu
+import Win
+from Windows import *
+import Qd
+
+import aetools
+import EasyDialogs
+
+kHighLevelEvent = 23                           # Not defined anywhere for Python yet?
+
+
+class MiniApplication:
+       
+       """A minimal FrameWork.Application-like class"""
+       
+       def __init__(self):
+               self.quitting = 0
+               # Initialize menu
+               self.appleid = 1
+               self.quitid = 2
+               Menu.ClearMenuBar()
+               self.applemenu = applemenu = Menu.NewMenu(self.appleid, "\024")
+               applemenu.AppendMenu("%s;(-" % self.getaboutmenutext())
+               if MacOS.runtimemodel == 'ppc':
+                       applemenu.AppendResMenu('DRVR')
+               applemenu.InsertMenu(0)
+               self.quitmenu = Menu.NewMenu(self.quitid, "File")
+               self.quitmenu.AppendMenu("Quit")
+               self.quitmenu.SetItemCmd(1, ord("Q"))
+               self.quitmenu.InsertMenu(0)
+               Menu.DrawMenuBar()
+       
+       def __del__(self):
+               self.close()
+       
+       def close(self):
+               pass
+       
+       def mainloop(self, mask = everyEvent, timeout = 60*60):
+               while not self.quitting:
+                       self.dooneevent(mask, timeout)
+       
+       def _quit(self):
+               self.quitting = 1
+       
+       def dooneevent(self, mask = everyEvent, timeout = 60*60):
+                       got, event = Evt.WaitNextEvent(mask, timeout)
+                       if got:
+                               self.lowlevelhandler(event)
+       
+       def lowlevelhandler(self, event):
+               what, message, when, where, modifiers = event
+               h, v = where
+               if what == kHighLevelEvent:
+                       msg = "High Level Event: %s %s" % \
+                               (`code(message)`, `code(h | (v<<16))`)
+                       try:
+                               AE.AEProcessAppleEvent(event)
+                       except AE.Error, err:
+                               print 'AE error: ', err
+                               print 'in', msg
+                               traceback.print_exc()
+                       return
+               elif what == keyDown:
+                       c = chr(message & charCodeMask)
+                       if modifiers & cmdKey:
+                               if c == '.':
+                                       raise KeyboardInterrupt, "Command-period"
+                               if c == 'q':
+                                       MacOS.OutputSeen()
+                                       self.quitting = 1
+                                       return
+               elif what == mouseDown:
+                       partcode, window = Win.FindWindow(where)
+                       if partcode == inMenuBar:
+                               result = Menu.MenuSelect(where)
+                               id = (result>>16) & 0xffff      # Hi word
+                               item = result & 0xffff          # Lo word
+                               if id == self.appleid:
+                                       if item == 1:
+                                               EasyDialogs.Message(self.getabouttext())
+                                       elif item > 1 and hasattr(Menu, 'OpenDeskAcc'):
+                                               name = self.applemenu.GetMenuItemText(item)
+                                               Menu.OpenDeskAcc(name)
+                               elif id == self.quitid and item == 1:
+                                       MacOS.OutputSeen()
+                                       self.quitting = 1
+                               Menu.HiliteMenu(0)
+                               return
+               # Anything not handled is passed to Python/SIOUX
+               MacOS.HandleEvent(event)
+       
+       def getabouttext(self):
+               return self.__class__.__name__
+       
+       def getaboutmenutext(self):
+               return "About %s\311" % self.__class__.__name__
+
+
+class AEServer:
+       
+       def __init__(self):
+               self.ae_handlers = {}
+       
+       def installaehandler(self, classe, type, callback):
+               AE.AEInstallEventHandler(classe, type, self.callback_wrapper)
+               self.ae_handlers[(classe, type)] = callback
+       
+       def close(self):
+               for classe, type in self.ae_handlers.keys():
+                       AE.AERemoveEventHandler(classe, type)
+       
+       def callback_wrapper(self, _request, _reply):
+               _parameters, _attributes = aetools.unpackevent(_request)
+               _class = _attributes['evcl'].type
+               _type = _attributes['evid'].type
+               
+               if self.ae_handlers.has_key((_class, _type)):
+                       _function = self.ae_handlers[(_class, _type)]
+               elif self.ae_handlers.has_key((_class, '****')):
+                       _function = self.ae_handlers[(_class, '****')]
+               elif self.ae_handlers.has_key(('****', '****')):
+                       _function = self.ae_handlers[('****', '****')]
+               else:
+                       raise 'Cannot happen: AE callback without handler', (_class, _type)
+               
+               # XXXX Do key-to-name mapping here
+               
+               _parameters['_attributes'] = _attributes
+               _parameters['_class'] = _class
+               _parameters['_type'] = _type
+               if _parameters.has_key('----'):
+                       _object = _parameters['----']
+                       del _parameters['----']
+                       # The try/except that used to be here can mask programmer errors.
+                       # Let the program crash, the programmer can always add a **args
+                       # to the formal parameter list.
+                       rv = apply(_function, (_object,), _parameters)
+               else:
+                       #Same try/except comment as above
+                       rv = apply(_function, (), _parameters)
+               
+               if rv == None:
+                       aetools.packevent(_reply, {})
+               else:
+                       aetools.packevent(_reply, {'----':rv})
+
+
+def code(x):
+       "Convert a long int to the 4-character code it really is"
+       s = ''
+       for i in range(4):
+               x, c = divmod(x, 256)
+               s = chr(c) + s
+       return s
+
+class _Test(AEServer, MiniApplication):
+       """Mini test application, handles required events"""
+       
+       def __init__(self):
+               MiniApplication.__init__(self)
+               AEServer.__init__(self)
+               self.installaehandler('aevt', 'oapp', self.open_app)
+               self.installaehandler('aevt', 'quit', self.quit)
+               self.installaehandler('****', '****', self.other)
+               self.mainloop()
+
+       def quit(self, **args):
+               self._quit()
+               
+       def open_app(self, **args):
+               pass
+               
+       def other(self, _object=None, _class=None, _type=None, **args):
+               print 'AppleEvent', (_class, _type), 'for', _object, 'Other args:', args
+               
+
+if __name__ == '__main__':
+       _Test()
diff --git a/Mac/Lib/aepack.py b/Mac/Lib/aepack.py
new file mode 100644 (file)
index 0000000..be6e645
--- /dev/null
@@ -0,0 +1,347 @@
+"""Tools for use in AppleEvent clients and servers:
+conversion between AE types and python types
+
+pack(x) converts a Python object to an AEDesc object
+unpack(desc) does the reverse
+coerce(x, wanted_sample) coerces a python object to another python object
+"""
+
+#
+# This code was originally written by Guido, and modified/extended by Jack
+# to include the various types that were missing. The reference used is
+# Apple Event Registry, chapter 9.
+#
+
+import struct
+import string
+import types
+from string import strip
+from types import *
+import AE
+from AppleEvents import *
+import MacOS
+import macfs
+import StringIO
+import aetypes
+from aetypes import mkenum, mktype
+
+# These ones seem to be missing from AppleEvents
+# (they're in AERegistry.h)
+
+#typeColorTable = 'clrt'
+#typeDrawingArea = 'cdrw'
+#typePixelMap = 'cpix'
+#typePixelMapMinus = 'tpmm'
+#typeRotation = 'trot'
+#typeTextStyles = 'tsty'
+#typeStyledText = 'STXT'
+#typeAEText = 'tTXT'
+#typeEnumeration = 'enum'
+
+#
+# Some AE types are immedeately coerced into something
+# we like better (and which is equivalent)
+#
+unpacker_coercions = {
+       typeComp : typeFloat,
+       typeColorTable : typeAEList,
+       typeDrawingArea : typeAERecord,
+       typeFixed : typeFloat,
+       typeExtended : typeFloat,
+       typePixelMap : typeAERecord,
+       typeRotation : typeAERecord,
+       typeStyledText : typeAERecord,
+       typeTextStyles : typeAERecord,
+};
+
+#
+# Some python types we need in the packer:
+#
+AEDescType = type(AE.AECreateDesc('TEXT', ''))
+_sample_fss = macfs.FSSpec(':')
+_sample_alias = _sample_fss.NewAliasMinimal()
+FSSType = type(_sample_fss)
+AliasType = type(_sample_alias)
+
+def pack(x, forcetype = None):
+       """Pack a python object into an AE descriptor"""
+       
+       if forcetype:
+               if type(x) is StringType:
+                       return AE.AECreateDesc(forcetype, x)
+               else:
+                       return pack(x).AECoerceDesc(forcetype)
+                       
+       if x == None:
+               return AE.AECreateDesc('null', '')
+               
+       t = type(x)
+       if t == AEDescType:
+               return x
+       if t == FSSType:
+               return AE.AECreateDesc('fss ', x.data)
+       if t == AliasType:
+               return AE.AECreateDesc('alis', x.data)
+       if t == IntType:
+               return AE.AECreateDesc('long', struct.pack('l', x))
+       if t == FloatType:
+               return AE.AECreateDesc('doub', struct.pack('d', x))
+       if t == StringType:
+               return AE.AECreateDesc('TEXT', x)
+       if t == ListType:
+               list = AE.AECreateList('', 0)
+               for item in x:
+                       list.AEPutDesc(0, pack(item))
+               return list
+       if t == DictionaryType:
+               record = AE.AECreateList('', 1)
+               for key, value in x.items():
+                       record.AEPutParamDesc(key, pack(value))
+               return record
+       if t == InstanceType and hasattr(x, '__aepack__'):
+               return x.__aepack__()
+       return AE.AECreateDesc('TEXT', repr(x)) # Copout
+
+def unpack(desc):
+       """Unpack an AE descriptor to a python object"""
+       t = desc.type
+       
+       if unpacker_coercions.has_key(t):
+               desc = desc.AECoerceDesc(unpacker_coercions[t])
+               t = desc.type # This is a guess by Jack....
+       
+       if t == typeAEList:
+               l = []
+               for i in range(desc.AECountItems()):
+                       keyword, item = desc.AEGetNthDesc(i+1, '****')
+                       l.append(unpack(item))
+               return l
+       if t == typeAERecord:
+               d = {}
+               for i in range(desc.AECountItems()):
+                       keyword, item = desc.AEGetNthDesc(i+1, '****')
+                       d[keyword] = unpack(item)
+               return d
+       if t == typeAEText:
+               record = desc.AECoerceDesc('reco')
+               return mkaetext(unpack(record))
+       if t == typeAlias:
+               return macfs.RawAlias(desc.data)
+       # typeAppleEvent returned as unknown
+       if t == typeBoolean:
+               return struct.unpack('b', desc.data)[0]
+       if t == typeChar:
+               return desc.data
+       # typeColorTable coerced to typeAEList
+       # typeComp coerced to extended
+       # typeData returned as unknown
+       # typeDrawingArea coerced to typeAERecord
+       if t == typeEnumeration:
+               return mkenum(desc.data)
+       # typeEPS returned as unknown
+       if t == typeFalse:
+               return 0
+       if t == typeFloat:
+               data = desc.data
+               return struct.unpack('d', data)[0]
+       if t == typeFSS:
+               return macfs.RawFSSpec(desc.data)
+       if t == typeInsertionLoc:
+               record = desc.AECoerceDesc('reco')
+               return mkinsertionloc(unpack(record))
+       # typeInteger equal to typeLongInteger
+       if t == typeIntlText:
+               script, language = struct.unpack('hh', desc.data[:4])
+               return aetypes.IntlText(script, language, desc.data[4:])
+       if t == typeIntlWritingCode:
+               script, language = struct.unpack('hh', desc.data)
+               return aetypes.IntlWritingCode(script, language)
+       if t == typeKeyword:
+               return mkkeyword(desc.data)
+       if t == typeLongInteger:
+               return struct.unpack('l', desc.data)[0]
+       if t == typeLongDateTime:
+               a, b = struct.unpack('lL', desc.data)
+               return (long(a) << 32) + b
+       if t == typeNull:
+               return None
+       if t == typeMagnitude:
+               v = struct.unpack('l', desc.data)
+               if v < 0:
+                       v = 0x100000000L + v
+               return v
+       if t == typeObjectSpecifier:
+               record = desc.AECoerceDesc('reco')
+               return mkobject(unpack(record))
+       # typePict returned as unknown
+       # typePixelMap coerced to typeAERecord
+       # typePixelMapMinus returned as unknown
+       # typeProcessSerialNumber returned as unknown
+       if t == typeQDPoint:
+               v, h = struct.unpack('hh', desc.data)
+               return aetypes.QDPoint(v, h)
+       if t == typeQDRectangle:
+               v0, h0, v1, h1 = struct.unpack('hhhh', desc.data)
+               return aetypes.QDRectangle(v0, h0, v1, h1)
+       if t == typeRGBColor:
+               r, g, b = struct.unpack('hhh', desc.data)
+               return aetypes.RGBColor(r, g, b)
+       # typeRotation coerced to typeAERecord
+       # typeScrapStyles returned as unknown
+       # typeSessionID returned as unknown
+       if t == typeShortFloat:
+               return struct.unpack('f', desc.data)[0]
+       if t == typeShortInteger:
+               return struct.unpack('h', desc.data)[0]
+       # typeSMFloat identical to typeShortFloat
+       # typeSMInt     indetical to typeShortInt
+       # typeStyledText coerced to typeAERecord
+       if t == typeTargetID:
+               return mktargetid(desc.data)
+       # typeTextStyles coerced to typeAERecord
+       # typeTIFF returned as unknown
+       if t == typeTrue:
+               return 1
+       if t == typeType:
+               return mktype(desc.data)
+       #
+       # The following are special
+       #
+       if t == 'rang':
+               record = desc.AECoerceDesc('reco')
+               return mkrange(unpack(record))
+       if t == 'cmpd':
+               record = desc.AECoerceDesc('reco')
+               return mkcomparison(unpack(record))
+       if t == 'logi':
+               record = desc.AECoerceDesc('reco')
+               return mklogical(unpack(record))
+       return mkunknown(desc.type, desc.data)
+       
+def coerce(data, egdata):
+       """Coerce a python object to another type using the AE coercers"""
+       pdata = pack(data)
+       pegdata = pack(egdata)
+       pdata = pdata.AECoerceDesc(pegdata.type)
+       return unpack(pdata)
+
+#
+# Helper routines for unpack
+#
+def mktargetid(data):
+       sessionID = getlong(data[:4])
+       name = mkppcportrec(data[4:4+72])
+       location = mklocationnamerec(data[76:76+36])
+       rcvrName = mkppcportrec(data[112:112+72])
+       return sessionID, name, location, rcvrName
+
+def mkppcportrec(rec):
+       namescript = getword(rec[:2])
+       name = getpstr(rec[2:2+33])
+       portkind = getword(rec[36:38])
+       if portkind == 1:
+               ctor = rec[38:42]
+               type = rec[42:46]
+               identity = (ctor, type)
+       else:
+               identity = getpstr(rec[38:38+33])
+       return namescript, name, portkind, identity
+
+def mklocationnamerec(rec):
+       kind = getword(rec[:2])
+       stuff = rec[2:]
+       if kind == 0: stuff = None
+       if kind == 2: stuff = getpstr(stuff)
+       return kind, stuff
+
+def mkunknown(type, data):
+       return aetypes.Unknown(type, data)
+
+def getpstr(s):
+       return s[1:1+ord(s[0])]
+
+def getlong(s):
+       return (ord(s[0])<<24) | (ord(s[1])<<16) | (ord(s[2])<<8) | ord(s[3])
+
+def getword(s):
+       return (ord(s[0])<<8) | (ord(s[1])<<0)
+
+def mkkeyword(keyword):
+       return aetypes.Keyword(keyword)
+
+def mkrange(dict):
+       return aetypes.Range(dict['star'], dict['stop'])
+
+def mkcomparison(dict):
+       return aetypes.Comparison(dict['obj1'], dict['relo'].enum, dict['obj2'])
+
+def mklogical(dict):
+       return aetypes.Logical(dict['logc'], dict['term'])
+
+def mkstyledtext(dict):
+       return aetypes.StyledText(dict['ksty'], dict['ktxt'])
+       
+def mkaetext(dict):
+       return aetypes.AEText(dict[keyAEScriptTag], dict[keyAEStyles], dict[keyAEText])
+       
+def mkinsertionloc(dict):
+       return aetypes.InsertionLoc(dict[keyAEObject], dict[keyAEPosition])
+
+def mkobject(dict):
+       want = dict['want'].type
+       form = dict['form'].enum
+       seld = dict['seld']
+       fr   = dict['from']
+       if form in ('name', 'indx', 'rang', 'test'):
+               if want == 'text': return aetypes.Text(seld, fr)
+               if want == 'cha ': return aetypes.Character(seld, fr)
+               if want == 'cwor': return aetypes.Word(seld, fr)
+               if want == 'clin': return aetypes.Line(seld, fr)
+               if want == 'cpar': return aetypes.Paragraph(seld, fr)
+               if want == 'cwin': return aetypes.Window(seld, fr)
+               if want == 'docu': return aetypes.Document(seld, fr)
+               if want == 'file': return aetypes.File(seld, fr)
+               if want == 'cins': return aetypes.InsertionPoint(seld, fr)
+       if want == 'prop' and form == 'prop' and aetypes.IsType(seld):
+               return aetypes.Property(seld.type, fr)
+       return aetypes.ObjectSpecifier(want, form, seld, fr)
+
+def _test():
+       """Test program. Pack and unpack various things"""
+       objs = [
+               'a string',
+               12,
+               12.0,
+               None,
+               ['a', 'list', 'of', 'strings'],
+               {'key1': 'value1', 'key2':'value2'},
+               macfs.FSSpec(':'),
+               macfs.FSSpec(':').NewAliasMinimal(),
+               aetypes.Enum('enum'),
+               aetypes.Type('type'),
+               aetypes.Keyword('kwrd'),
+               aetypes.Range(1, 10),
+               aetypes.Comparison(1, '<   ', 10),
+               aetypes.Logical('not ', 1),
+               # Cannot do StyledText
+               # Cannot do AEText
+               aetypes.IntlText(0, 0, 'international text'),
+               aetypes.IntlWritingCode(0,0),
+               aetypes.QDPoint(50,100),
+               aetypes.QDRectangle(50,100,150,200),
+               aetypes.RGBColor(0x7000, 0x6000, 0x5000),
+               aetypes.Unknown('xxxx', 'unknown type data'),
+               aetypes.Character(1),
+               aetypes.Character(2, aetypes.Line(2)),
+       ]
+       for o in objs:
+               print 'BEFORE', o, `o`
+               packed = pack(o)
+               unpacked = unpack(packed)
+               print 'AFTER ', unpacked, `unpacked`
+       import sys
+       sys.exit(1)
+       
+if __name__ == '__main__':
+       _test()
+       
diff --git a/Mac/Lib/aetools.py b/Mac/Lib/aetools.py
new file mode 100644 (file)
index 0000000..1af761e
--- /dev/null
@@ -0,0 +1,277 @@
+"""Tools for use in AppleEvent clients and servers.
+
+pack(x) converts a Python object to an AEDesc object
+unpack(desc) does the reverse
+
+packevent(event, parameters, attributes) sets params and attrs in an AEAppleEvent record
+unpackevent(event) returns the parameters and attributes from an AEAppleEvent record
+
+Plus...  Lots of classes and routines that help representing AE objects,
+ranges, conditionals, logicals, etc., so you can write, e.g.:
+
+       x = Character(1, Document("foobar"))
+
+and pack(x) will create an AE object reference equivalent to AppleScript's
+
+       character 1 of document "foobar"
+
+Some of the stuff that appears to be exported from this module comes from other
+files: the pack stuff from aepack, the objects from aetypes.
+
+"""
+
+
+from types import *
+import AE
+import AppleEvents
+import MacOS
+import sys
+
+from aetypes import *
+from aepack import pack, unpack, coerce, AEDescType
+
+Error = 'aetools.Error'
+
+# Special code to unpack an AppleEvent (which is *not* a disguised record!)
+# Note by Jack: No??!? If I read the docs correctly it *is*....
+
+aekeywords = [
+       'tran',
+       'rtid',
+       'evcl',
+       'evid',
+       'addr',
+       'optk',
+       'timo',
+       'inte', # this attribute is read only - will be set in AESend
+       'esrc', # this attribute is read only
+       'miss', # this attribute is read only
+       'from'  # new in 1.0.1
+]
+
+def missed(ae):
+       try:
+               desc = ae.AEGetAttributeDesc('miss', 'keyw')
+       except AE.Error, msg:
+               return None
+       return desc.data
+
+def unpackevent(ae):
+       parameters = {}
+       try:
+               dirobj = ae.AEGetParamDesc('----', '****')
+       except AE.Error:
+               pass
+       else:
+               parameters['----'] = unpack(dirobj)
+               del dirobj
+       while 1:
+               key = missed(ae)
+               if not key: break
+               parameters[key] = unpack(ae.AEGetParamDesc(key, '****'))
+       attributes = {}
+       for key in aekeywords:
+               try:
+                       desc = ae.AEGetAttributeDesc(key, '****')
+               except (AE.Error, MacOS.Error), msg:
+                       if msg[0] != -1701 and msg[0] != -1704:
+                               raise sys.exc_type, sys.exc_value
+                       continue
+               attributes[key] = unpack(desc)
+       return parameters, attributes
+
+def packevent(ae, parameters = {}, attributes = {}):
+       for key, value in parameters.items():
+               ae.AEPutParamDesc(key, pack(value))
+       for key, value in attributes.items():
+               ae.AEPutAttributeDesc(key, pack(value))
+
+#
+# Support routine for automatically generated Suite interfaces
+# These routines are also useable for the reverse function.
+#
+def keysubst(arguments, keydict):
+       """Replace long name keys by their 4-char counterparts, and check"""
+       ok = keydict.values()
+       for k in arguments.keys():
+               if keydict.has_key(k):
+                       v = arguments[k]
+                       del arguments[k]
+                       arguments[keydict[k]] = v
+               elif k != '----' and k not in ok:
+                       raise TypeError, 'Unknown keyword argument: %s'%k
+                       
+def enumsubst(arguments, key, edict):
+       """Substitute a single enum keyword argument, if it occurs"""
+       if not arguments.has_key(key) or edict is None:
+               return
+       v = arguments[key]
+       ok = edict.values()
+       if edict.has_key(v):
+               arguments[key] = edict[v]
+       elif not v in ok:
+               raise TypeError, 'Unknown enumerator: %s'%v
+               
+def decodeerror(arguments):
+       """Create the 'best' argument for a raise MacOS.Error"""
+       errn = arguments['errn']
+       err_a1 = errn
+       if arguments.has_key('errs'):
+               err_a2 = arguments['errs']
+       else:
+               err_a2 = MacOS.GetErrorString(errn)
+       if arguments.has_key('erob'):
+               err_a3 = arguments['erob']
+       else:
+               err_a3 = None
+       
+       return (err_a1, err_a2, err_a3)
+
+class TalkTo:
+       """An AE connection to an application"""
+       _signature = None       # Can be overridden by subclasses
+       
+       def __init__(self, signature=None, start=0, timeout=0):
+               """Create a communication channel with a particular application.
+               
+               Addressing the application is done by specifying either a
+               4-byte signature, an AEDesc or an object that will __aepack__
+               to an AEDesc.
+               """
+               self.target_signature = None
+               if signature is None:
+                       signature = self._signature
+               if type(signature) == AEDescType:
+                       self.target = signature
+               elif type(signature) == InstanceType and hasattr(signature, '__aepack__'):
+                       self.target = signature.__aepack__()
+               elif type(signature) == StringType and len(signature) == 4:
+                       self.target = AE.AECreateDesc(AppleEvents.typeApplSignature, signature)
+                       self.target_signature = signature
+               else:
+                       raise TypeError, "signature should be 4-char string or AEDesc"
+               self.send_flags = AppleEvents.kAEWaitReply
+               self.send_priority = AppleEvents.kAENormalPriority
+               if timeout:
+                       self.send_timeout = timeout
+               else:
+                       self.send_timeout = AppleEvents.kAEDefaultTimeout
+               if start:
+                       self.start()
+               
+       def start(self):
+               """Start the application, if it is not running yet"""
+               try:
+                       self.send('ascr', 'noop')
+               except AE.Error:
+                       _launch(self.target_signature)
+                       
+       def newevent(self, code, subcode, parameters = {}, attributes = {}):
+               """Create a complete structure for an apple event"""
+               
+               event = AE.AECreateAppleEvent(code, subcode, self.target,
+                         AppleEvents.kAutoGenerateReturnID, AppleEvents.kAnyTransactionID)
+               packevent(event, parameters, attributes)
+               return event
+       
+       def sendevent(self, event):
+               """Send a pre-created appleevent, await the reply and unpack it"""
+               
+               reply = event.AESend(self.send_flags, self.send_priority,
+                                         self.send_timeout)
+               parameters, attributes = unpackevent(reply)
+               return reply, parameters, attributes
+               
+       def send(self, code, subcode, parameters = {}, attributes = {}):
+               """Send an appleevent given code/subcode/pars/attrs and unpack the reply"""
+               return self.sendevent(self.newevent(code, subcode, parameters, attributes))
+       
+       #
+       # The following events are somehow "standard" and don't seem to appear in any
+       # suite...
+       #
+       def activate(self):
+               """Send 'activate' command"""
+               self.send('misc', 'actv')
+
+       def _get(self, _object, as=None, _attributes={}):
+               """_get: get data from an object
+               Required argument: the object
+               Keyword argument _attributes: AppleEvent attribute dictionary
+               Returns: the data
+               """
+               _code = 'core'
+               _subcode = 'getd'
+
+               _arguments = {'----':_object}
+               if as:
+                       _arguments['rtyp'] = mktype(as)
+
+               _reply, _arguments, _attributes = self.send(_code, _subcode,
+                               _arguments, _attributes)
+               if _arguments.has_key('errn'):
+                       raise Error, decodeerror(_arguments)
+
+               if _arguments.has_key('----'):
+                       return _arguments['----']
+
+# Tiny Finder class, for local use only
+
+class _miniFinder(TalkTo):
+       def open(self, _object, _attributes={}, **_arguments):
+               """open: Open the specified object(s)
+               Required argument: list of objects to open
+               Keyword argument _attributes: AppleEvent attribute dictionary
+               """
+               _code = 'aevt'
+               _subcode = 'odoc'
+
+               if _arguments: raise TypeError, 'No optional args expected'
+               _arguments['----'] = _object
+
+
+               _reply, _arguments, _attributes = self.send(_code, _subcode,
+                               _arguments, _attributes)
+               if _arguments.has_key('errn'):
+                       raise Error, decodeerror(_arguments)
+               # XXXX Optionally decode result
+               if _arguments.has_key('----'):
+                       return _arguments['----']
+#pass
+       
+_finder = _miniFinder('MACS')
+
+def _launch(appfile):
+       """Open a file thru the finder. Specify file by name or fsspec"""
+       _finder.open(_application_file(('ID  ', appfile)))
+
+
+class _application_file(ComponentItem):
+       """application file - An application's file on disk"""
+       want = 'appf'
+       
+_application_file._propdict = {
+}
+_application_file._elemdict = {
+}
+       
+# Test program
+# XXXX Should test more, really...
+
+def test():
+       target = AE.AECreateDesc('sign', 'quil')
+       ae = AE.AECreateAppleEvent('aevt', 'oapp', target, -1, 0)
+       print unpackevent(ae)
+       raw_input(":")
+       ae = AE.AECreateAppleEvent('core', 'getd', target, -1, 0)
+       obj = Character(2, Word(1, Document(1)))
+       print obj
+       print repr(obj)
+       packevent(ae, {'----': obj})
+       params, attrs = unpackevent(ae)
+       print params['----']
+       raw_input(":")
+
+if __name__ == '__main__':
+       test()
+       sys.exit(1)
diff --git a/Mac/Lib/aetypes.py b/Mac/Lib/aetypes.py
new file mode 100644 (file)
index 0000000..253d1e7
--- /dev/null
@@ -0,0 +1,564 @@
+"""aetypes - Python objects representing various AE types."""
+
+from AppleEvents import *
+import struct
+from types import *
+import string
+
+#
+# convoluted, since there are cyclic dependencies between this file and
+# aetools_convert.
+#
+def pack(*args):
+       from aepack import pack
+       return apply(pack, args)
+       
+def IsSubclass(cls, base):
+       """Test whether CLASS1 is the same as or a subclass of CLASS2"""
+       # Loop to optimize for single inheritance
+       while 1:
+               if cls is base: return 1
+               if len(cls.__bases__) <> 1: break
+               cls = cls.__bases__[0]
+       # Recurse to cope with multiple inheritance
+       for c in cls.__bases__:
+               if IsSubclass(c, base): return 1
+       return 0
+
+def IsInstance(x, cls):
+       """Test whether OBJECT is an instance of (a subclass of) CLASS"""
+       return type(x) is InstanceType and IsSubclass(x.__class__, cls)
+
+def nice(s):
+       """'nice' representation of an object"""
+       if type(s) is StringType: return repr(s)
+       else: return str(s)
+
+class Unknown:
+       """An uninterpreted AE object"""
+       
+       def __init__(self, type, data):
+               self.type = type
+               self.data = data
+       
+       def __repr__(self):
+               return "Unknown(%s, %s)" % (`self.type`, `self.data`)
+       
+       def __aepack__(self):
+               return pack(self.data, self.type)
+
+class Enum:
+       """An AE enumeration value"""
+       
+       def __init__(self, enum):
+               self.enum = "%-4.4s" % str(enum)
+       
+       def __repr__(self):
+               return "Enum(%s)" % `self.enum`
+       
+       def __str__(self):
+               return string.strip(self.enum)
+       
+       def __aepack__(self):
+               return pack(self.enum, typeEnumeration)
+
+def IsEnum(x):
+       return IsInstance(x, Enum)
+
+def mkenum(enum):
+       if IsEnum(enum): return enum
+       return Enum(enum)
+
+class Boolean:
+       """An AE boolean value"""
+       
+       def __init__(self, bool):
+               self.bool = (not not bool)
+       
+       def __repr__(self):
+               return "Boolean(%s)" % `self.bool`
+       
+       def __str__(self):
+               if self.bool:
+                       return "True"
+               else:
+                       return "False"
+       
+       def __aepack__(self):
+               return pack(struct.pack('b', self.bool), 'bool')
+
+def IsBoolean(x):
+       return IsInstance(x, Boolean)
+
+def mkboolean(bool):
+       if IsBoolean(bool): return bool
+       return Boolean(bool)
+
+class Type:
+       """An AE 4-char typename object"""
+       
+       def __init__(self, type):
+               self.type = "%-4.4s" % str(type)
+       
+       def __repr__(self):
+               return "Type(%s)" % `self.type`
+       
+       def __str__(self):
+               return string.strip(self.type)
+       
+       def __aepack__(self):
+               return pack(self.type, typeType)
+
+def IsType(x):
+       return IsInstance(x, Type)
+
+def mktype(type):
+       if IsType(type): return type
+       return Type(type)
+
+
+class Keyword:
+       """An AE 4-char keyword object"""
+       
+       def __init__(self, keyword):
+               self.keyword = "%-4.4s" % str(keyword)
+       
+       def __repr__(self):
+               return "Keyword(%s)" % `self.keyword`
+       
+       def __str__(self):
+               return string.strip(self.keyword)
+       
+       def __aepack__(self):
+               return pack(self.keyword, typeKeyword)
+
+def IsKeyword(x):
+       return IsInstance(x, Keyword)
+
+class Range:
+       """An AE range object"""
+       
+       def __init__(self, start, stop):
+               self.start = start
+               self.stop = stop
+       
+       def __repr__(self):
+               return "Range(%s, %s)" % (`self.start`, `self.stop`)
+       
+       def __str__(self):
+               return "%s thru %s" % (nice(self.start), nice(self.stop))
+       
+       def __aepack__(self):
+               return pack({'star': self.start, 'stop': self.stop}, 'rang')
+
+def IsRange(x):
+       return IsInstance(x, Range)
+
+class Comparison:
+       """An AE Comparison"""
+       
+       def __init__(self, obj1, relo, obj2):
+               self.obj1 = obj1
+               self.relo = "%-4.4s" % str(relo)
+               self.obj2 = obj2
+       
+       def __repr__(self):
+               return "Comparison(%s, %s, %s)" % (`self.obj1`, `self.relo`, `self.obj2`)
+       
+       def __str__(self):
+               return "%s %s %s" % (nice(self.obj1), string.strip(self.relo), nice(self.obj2))
+       
+       def __aepack__(self):
+               return pack({'obj1': self.obj1,
+                            'relo': mkenum(self.relo),
+                            'obj2': self.obj2},
+                           'cmpd')
+
+def IsComparison(x):
+       return IsInstance(x, Comparison)
+       
+class NComparison(Comparison):
+       # The class attribute 'relo' must be set in a subclass
+       
+       def __init__(self, obj1, obj2):
+               Comparison.__init__(obj1, self.relo, obj2)
+
+class Ordinal:
+       """An AE Ordinal"""
+       
+       def __init__(self, abso):
+#              self.obj1 = obj1
+               self.abso = "%-4.4s" % str(abso)
+       
+       def __repr__(self):
+               return "Ordinal(%s)" % (`self.abso`)
+       
+       def __str__(self):
+               return "%s" % (string.strip(self.abso))
+       
+       def __aepack__(self):
+               return pack(self.abso, 'abso')
+
+def IsOrdinal(x):
+       return IsInstance(x, Ordinal)
+       
+class NOrdinal(Ordinal):
+       # The class attribute 'abso' must be set in a subclass
+       
+       def __init__(self):
+               Ordinal.__init__(self, self.abso)
+
+class Logical:
+       """An AE logical expression object"""
+       
+       def __init__(self, logc, term):
+               self.logc = "%-4.4s" % str(logc)
+               self.term = term
+       
+       def __repr__(self):
+               return "Logical(%s, %s)" % (`self.logc`, `self.term`)
+       
+       def __str__(self):
+               if type(self.term) == ListType and len(self.term) == 2:
+                       return "%s %s %s" % (nice(self.term[0]),
+                                            string.strip(self.logc),
+                                            nice(self.term[1]))
+               else:
+                       return "%s(%s)" % (string.strip(self.logc), nice(self.term))
+       
+       def __aepack__(self):
+               return pack({'logc': mkenum(self.logc), 'term': self.term}, 'logi')
+
+def IsLogical(x):
+       return IsInstance(x, Logical)
+
+class StyledText:
+       """An AE object respresenting text in a certain style"""
+       
+       def __init__(self, style, text):
+               self.style = style
+               self.text = text
+       
+       def __repr__(self):
+               return "StyledText(%s, %s)" % (`self.style`, `self.text`)
+       
+       def __str__(self):
+               return self.text
+       
+       def __aepack__(self):
+               return pack({'ksty': self.style, 'ktxt': self.text}, 'STXT')
+
+def IsStyledText(x):
+       return IsInstance(x, StyledText)
+
+class AEText:
+       """An AE text object with style, script and language specified"""
+       
+       def __init__(self, script, style, text):
+               self.script = script
+               self.style = style
+               self.text = text
+       
+       def __repr__(self):
+               return "AEText(%s, %s, %s)" % (`self.script`, `self.style`, `self.text`)
+       
+       def __str__(self):
+               return self.text
+       
+       def __aepack__(self):
+               return pack({keyAEScriptTag: self.script, keyAEStyles: self.style,
+                                keyAEText: self.text}, typeAEText)
+
+def IsAEText(x):
+       return IsInstance(x, AEText)
+
+class IntlText:
+       """A text object with script and language specified"""
+       
+       def __init__(self, script, language, text):
+               self.script = script
+               self.language = language
+               self.text = text
+       
+       def __repr__(self):
+               return "IntlText(%s, %s, %s)" % (`self.script`, `self.language`, `self.text`)
+       
+       def __str__(self):
+               return self.text
+       
+       def __aepack__(self):
+               return pack(struct.pack('hh', self.script, self.language)+self.text,
+                       typeIntlText)
+
+def IsIntlText(x):
+       return IsInstance(x, IntlText)
+
+class IntlWritingCode:
+       """An object representing script and language"""
+       
+       def __init__(self, script, language):
+               self.script = script
+               self.language = language
+       
+       def __repr__(self):
+               return "IntlWritingCode(%s, %s)" % (`self.script`, `self.language`)
+       
+       def __str__(self):
+               return "script system %d, language %d"%(self.script, self.language)
+       
+       def __aepack__(self):
+               return pack(struct.pack('hh', self.script, self.language),
+                       typeIntlWritingCode)
+
+def IsIntlWritingCode(x):
+       return IsInstance(x, IntlWritingCode)
+
+class QDPoint:
+       """A point"""
+       
+       def __init__(self, v, h):
+               self.v = v
+               self.h = h
+       
+       def __repr__(self):
+               return "QDPoint(%s, %s)" % (`self.v`, `self.h`)
+       
+       def __str__(self):
+               return "(%d, %d)"%(self.v, self.h)
+       
+       def __aepack__(self):
+               return pack(struct.pack('hh', self.v, self.h),
+                       typeQDPoint)
+
+def IsQDPoint(x):
+       return IsInstance(x, QDPoint)
+
+class QDRectangle:
+       """A rectangle"""
+       
+       def __init__(self, v0, h0, v1, h1):
+               self.v0 = v0
+               self.h0 = h0
+               self.v1 = v1
+               self.h1 = h1
+       
+       def __repr__(self):
+               return "QDRectangle(%s, %s, %s, %s)" % (`self.v0`, `self.h0`,
+                               `self.v1`, `self.h1`)
+       
+       def __str__(self):
+               return "(%d, %d)-(%d, %d)"%(self.v0, self.h0, self.v1, self.h1)
+       
+       def __aepack__(self):
+               return pack(struct.pack('hhhh', self.v0, self.h0, self.v1, self.h1),
+                       typeQDRectangle)
+
+def IsQDRectangle(x):
+       return IsInstance(x, QDRectangle)
+
+class RGBColor:
+       """An RGB color"""
+       
+       def __init__(self, r, g, b):
+               self.r = r
+               self.g = g
+               self.b = b
+                       
+       def __repr__(self):
+               return "RGBColor(%s, %s, %s)" % (`self.r`, `self.g`, `self.b`)
+       
+       def __str__(self):
+               return "0x%x red, 0x%x green, 0x%x blue"% (self.r, self.g, self.b)
+       
+       def __aepack__(self):
+               return pack(struct.pack('hhh', self.r, self.g, self.b),
+                       typeRGBColor)
+
+def IsRGBColor(x):
+       return IsInstance(x, RGBColor)
+
+class ObjectSpecifier:
+       
+       """A class for constructing and manipulation AE object specifiers in python.
+       
+       An object specifier is actually a record with four fields:
+       
+       key     type    description
+       ---     ----    -----------
+       
+       'want'  type    4-char class code of thing we want,
+                       e.g. word, paragraph or property
+       
+       'form'  enum    how we specify which 'want' thing(s) we want,
+                       e.g. by index, by range, by name, or by property specifier
+       
+       'seld'  any     which thing(s) we want,
+                       e.g. its index, its name, or its property specifier
+       
+       'from'  object  the object in which it is contained,
+                       or null, meaning look for it in the application
+       
+       Note that we don't call this class plain "Object", since that name
+       is likely to be used by the application.
+       """
+       
+       def __init__(self, want, form, seld, fr = None):
+               self.want = want
+               self.form = form
+               self.seld = seld
+               self.fr = fr
+       
+       def __repr__(self):
+               s = "ObjectSpecifier(%s, %s, %s" % (`self.want`, `self.form`, `self.seld`)
+               if self.fr:
+                       s = s + ", %s)" % `self.fr`
+               else:
+                       s = s + ")"
+               return s
+       
+       def __aepack__(self):
+               return pack({'want': mktype(self.want),
+                            'form': mkenum(self.form),
+                            'seld': self.seld,
+                            'from': self.fr},
+                           'obj ')
+
+def IsObjectSpecifier(x):
+       return IsInstance(x, ObjectSpecifier)
+
+
+# Backwards compatability, sigh...
+class Property(ObjectSpecifier):
+
+       def __init__(self, which, fr = None, want='prop'):
+               ObjectSpecifier.__init__(self, want, 'prop', mktype(which), fr)
+
+       def __repr__(self):
+               if self.fr:
+                       return "Property(%s, %s)" % (`self.seld.type`, `self.fr`)
+               else:
+                       return "Property(%s)" % `self.seld.type`
+       
+       def __str__(self):
+               if self.fr:
+                       return "Property %s of %s" % (str(self.seld), str(self.fr))
+               else:
+                       return "Property %s" % str(self.seld)
+
+
+class NProperty(ObjectSpecifier):
+       # Subclasses *must* self baseclass attributes:
+       # want is the type of this property
+       # which is the property name of this property
+
+       def __init__(self, fr = None):
+               #try:
+               #       dummy = self.want
+               #except:
+               #       self.want = 'prop'
+               self.want = 'prop'
+               ObjectSpecifier.__init__(self, self.want, 'prop', 
+                                       mktype(self.which), fr)
+
+       def __repr__(self):
+               rv = "Property(%s"%`self.seld.type`
+               if self.fr:
+                       rv = rv + ", fr=%s" % `self.fr`
+               if self.want != 'prop':
+                       rv = rv + ", want=%s" % `self.want`
+               return rv + ")"
+       
+       def __str__(self):
+               if self.fr:
+                       return "Property %s of %s" % (str(self.seld), str(self.fr))
+               else:
+                       return "Property %s" % str(self.seld)
+
+
+class SelectableItem(ObjectSpecifier):
+       
+       def __init__(self, want, seld, fr = None):
+               t = type(seld)
+               if t == StringType:
+                       form = 'name'
+               elif IsRange(seld):
+                       form = 'rang'
+               elif IsComparison(seld) or IsLogical(seld):
+                       form = 'test'
+               elif t == TupleType:
+                       # Breakout: specify both form and seld in a tuple
+                       # (if you want ID or rele or somesuch)
+                       form, seld = seld
+               else:
+                       form = 'indx'
+               ObjectSpecifier.__init__(self, want, form, seld, fr)
+
+
+class ComponentItem(SelectableItem):
+       # Derived classes *must* set the *class attribute* 'want' to some constant
+       # Also, dictionaries _propdict and _elemdict must be set to map property
+       # and element names to the correct classes
+       
+       def __init__(self, which, fr = None):
+               SelectableItem.__init__(self, self.want, which, fr)
+       
+       def __repr__(self):
+               if not self.fr:
+                       return "%s(%s)" % (self.__class__.__name__, `self.seld`)
+               return "%s(%s, %s)" % (self.__class__.__name__, `self.seld`, `self.fr`)
+       
+       def __str__(self):
+               seld = self.seld
+               if type(seld) == StringType:
+                       ss = repr(seld)
+               elif IsRange(seld):
+                       start, stop = seld.start, seld.stop
+                       if type(start) == InstanceType == type(stop) and \
+                          start.__class__ == self.__class__ == stop.__class__:
+                               ss = str(start.seld) + " thru " + str(stop.seld)
+                       else:
+                               ss = str(seld)
+               else:
+                       ss = str(seld)
+               s = "%s %s" % (self.__class__.__name__, ss)
+               if self.fr: s = s + " of %s" % str(self.fr)
+               return s
+               
+       def __getattr__(self, name):
+               if self._elemdict.has_key(name):
+                       cls = self._elemdict[name]
+                       return DelayedComponentItem(cls, self)
+               if self._propdict.has_key(name):
+                       cls = self._propdict[name]
+                       return cls(self)
+               raise AttributeError, name
+               
+               
+class DelayedComponentItem:
+       def __init__(self, compclass, fr):
+               self.compclass = compclass
+               self.fr = fr
+               
+       def __call__(self, which):
+               return self.compclass(which, self.fr)
+               
+       def __repr__(self):
+               return "%s(???, %s)" % (self.__class__.__name__, `self.fr`)
+               
+       def __str__(self):
+               return "selector for element %s of %s"%(self.__class__.__name__, str(self.fr))
+
+template = """
+class %s(ComponentItem): want = '%s'
+"""
+
+exec template % ("Text", 'text')
+exec template % ("Character", 'cha ')
+exec template % ("Word", 'cwor')
+exec template % ("Line", 'clin')
+exec template % ("paragraph", 'cpar')
+exec template % ("Window", 'cwin')
+exec template % ("Document", 'docu')
+exec template % ("File", 'file')
+exec template % ("InsertionPoint", 'cins')
+