--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/plat-mac/aepack.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,365 @@
+"""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.
+#
+
+from warnings import warnpy3k
+warnpy3k("In 3.x, the aepack module is removed.", stacklevel=2)
+
+import struct
+import types
+from types import *
+from Carbon import AE
+from Carbon.AppleEvents import *
+import MacOS
+import Carbon.File
+import aetypes
+from aetypes import mkenum, ObjectSpecifier
+
+# 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 = AE.AEDescType
+FSSType = Carbon.File.FSSpecType
+FSRefType = Carbon.File.FSRefType
+AliasType = Carbon.File.AliasType
+
+def packkey(ae, key, value):
+ if hasattr(key, 'which'):
+ keystr = key.which
+ elif hasattr(key, 'want'):
+ keystr = key.want
+ else:
+ keystr = key
+ ae.AEPutParamDesc(keystr, pack(value))
+
+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 is None:
+ return AE.AECreateDesc('null', '')
+
+ if isinstance(x, AEDescType):
+ return x
+ if isinstance(x, FSSType):
+ return AE.AECreateDesc('fss ', x.data)
+ if isinstance(x, FSRefType):
+ return AE.AECreateDesc('fsrf', x.data)
+ if isinstance(x, AliasType):
+ return AE.AECreateDesc('alis', x.data)
+ if isinstance(x, IntType):
+ return AE.AECreateDesc('long', struct.pack('l', x))
+ if isinstance(x, FloatType):
+ return AE.AECreateDesc('doub', struct.pack('d', x))
+ if isinstance(x, StringType):
+ return AE.AECreateDesc('TEXT', x)
+ if isinstance(x, UnicodeType):
+ data = x.encode('utf16')
+ if data[:2] == '\xfe\xff':
+ data = data[2:]
+ return AE.AECreateDesc('utxt', data)
+ if isinstance(x, ListType):
+ list = AE.AECreateList('', 0)
+ for item in x:
+ list.AEPutDesc(0, pack(item))
+ return list
+ if isinstance(x, DictionaryType):
+ record = AE.AECreateList('', 1)
+ for key, value in x.items():
+ packkey(record, key, value)
+ #record.AEPutParamDesc(key, pack(value))
+ return record
+ if type(x) == types.ClassType and issubclass(x, ObjectSpecifier):
+ # Note: we are getting a class object here, not an instance
+ return AE.AECreateDesc('type', x.want)
+ if hasattr(x, '__aepack__'):
+ return x.__aepack__()
+ if hasattr(x, 'which'):
+ return AE.AECreateDesc('TEXT', x.which)
+ if hasattr(x, 'want'):
+ return AE.AECreateDesc('TEXT', x.want)
+ return AE.AECreateDesc('TEXT', repr(x)) # Copout
+
+def unpack(desc, formodulename=""):
+ """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, formodulename))
+ return l
+ if t == typeAERecord:
+ d = {}
+ for i in range(desc.AECountItems()):
+ keyword, item = desc.AEGetNthDesc(i+1, '****')
+ d[keyword] = unpack(item, formodulename)
+ return d
+ if t == typeAEText:
+ record = desc.AECoerceDesc('reco')
+ return mkaetext(unpack(record, formodulename))
+ if t == typeAlias:
+ return Carbon.File.Alias(rawdata=desc.data)
+ # typeAppleEvent returned as unknown
+ if t == typeBoolean:
+ return struct.unpack('b', desc.data)[0]
+ if t == typeChar:
+ return desc.data
+ if t == typeUnicodeText:
+ return unicode(desc.data, 'utf16')
+ # 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 Carbon.File.FSSpec(rawdata=desc.data)
+ if t == typeFSRef:
+ return Carbon.File.FSRef(rawdata=desc.data)
+ if t == typeInsertionLoc:
+ record = desc.AECoerceDesc('reco')
+ return mkinsertionloc(unpack(record, formodulename))
+ # 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')
+ # If we have been told the name of the module we are unpacking aedescs for,
+ # we can attempt to create the right type of python object from that module.
+ if formodulename:
+ return mkobjectfrommodule(unpack(record, formodulename), formodulename)
+ return mkobject(unpack(record, formodulename))
+ # 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, formodulename)
+ #
+ # The following are special
+ #
+ if t == 'rang':
+ record = desc.AECoerceDesc('reco')
+ return mkrange(unpack(record, formodulename))
+ if t == 'cmpd':
+ record = desc.AECoerceDesc('reco')
+ return mkcomparison(unpack(record, formodulename))
+ if t == 'logi':
+ record = desc.AECoerceDesc('reco')
+ return mklogical(unpack(record, formodulename))
+ 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)
+
+# Note by Jack: I'm not 100% sure of the following code. This was
+# provided by Donovan Preston, but I wonder whether the assignment
+# to __class__ is safe. Moreover, shouldn't there be a better
+# initializer for the classes in the suites?
+def mkobjectfrommodule(dict, modulename):
+ if type(dict['want']) == types.ClassType and issubclass(dict['want'], ObjectSpecifier):
+ # The type has already been converted to Python. Convert back:-(
+ classtype = dict['want']
+ dict['want'] = aetypes.mktype(classtype.want)
+ want = dict['want'].type
+ module = __import__(modulename)
+ codenamemapper = module._classdeclarations
+ classtype = codenamemapper.get(want, None)
+ newobj = mkobject(dict)
+ if classtype:
+ assert issubclass(classtype, ObjectSpecifier)
+ newobj.__class__ = classtype
+ return newobj
+
+def mktype(typecode, modulename=None):
+ if modulename:
+ module = __import__(modulename)
+ codenamemapper = module._classdeclarations
+ classtype = codenamemapper.get(typecode, None)
+ if classtype:
+ return classtype
+ return aetypes.mktype(typecode)