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"""macfs - Pure Python module designed to be backward compatible with
macfs and MACFS.
"""
import sys
import struct
import Carbon.Res
import Carbon.File
import Nav
# First step: ensure we also emulate the MACFS module, which contained
# all the constants
sys.modules['MACFS'] = sys.modules[__name__]
# Import all those constants
from Carbon.Files import *
from Carbon.Folders import *
# For some obscure historical reason these are here too:
READ = 1
WRITE = 2
smAllScripts = -3
# The old name of the error object:
error = Carbon.File.Error
#
# The various objects macfs used to export. We override them here, because some
# of the method names are subtly different.
#
class FSSpec(Carbon.File.FSSpec):
def as_fsref(self):
return FSRef(self)
def NewAlias(self, src=None):
return Alias(Carbon.File.NewAlias(src, self))
def GetCreatorType(self):
finfo = self.FSpGetFInfo()
return finfo.Creator, finfo.Type
def SetCreatorType(self, ctor, tp):
finfo = self.FSpGetFInfo()
finfo.Creator = ctor
finfo.Type = tp
self.FSpSetFInfo(finfo)
def GetFInfo(self):
return self.FSpGetFInfo()
def SetFInfo(self, info):
return self.FSpSetFInfo(info)
def GetDates(self):
import os
statb = os.stat(self.as_pathname())
return statb.st_ctime, statb.st_mtime, 0
def SetDates(self, *dates):
print "FSSpec.SetDates no longer implemented"
class FSRef(Carbon.File.FSRef):
def as_fsspec(self):
return FSSpec(self)
class Alias(Carbon.File.Alias):
def GetInfo(self, index):
return self.GetAliasInfo(index)
def Update(self, *args):
print "Alias.Update not yet implemented"
def Resolve(self, src=None):
fss, changed = self.ResolveAlias(src)
return FSSpec(fss), changed
from Carbon.File import FInfo
# Backward-compatible type names:
FSSpecType = FSSpec
FSRefType = FSRef
AliasType = Alias
FInfoType = FInfo
# Global functions:
def ResolveAliasFile(fss, chain=1):
fss, isdir, isalias = Carbon.File.ResolveAliasFile(fss, chain)
return FSSpec(fss), isdir, isalias
def RawFSSpec(data):
return FSSpec(rawdata=data)
def RawAlias(data):
return Alias(rawdata=data)
def FindApplication(*args):
raise NotImplementedError, "FindApplication no longer implemented"
def NewAliasMinimalFromFullPath(path):
return Alias(Carbon.File.NewAliasMinimalFromFullPath(path, '', ''))
# Another global function:
from Carbon.Folder import FindFolder
#
# Finally the old Standard File routine emulators.
#
_movablemodal = 0
_curfolder = None
def _mktypelist(typelist):
# Workaround for OSX typeless files:
if 'TEXT' in typelist and not '\0\0\0\0' in typelist:
typelist = typelist + ('\0\0\0\0',)
if not typelist:
return None
data = 'Pyth' + struct.pack("hh", 0, len(typelist))
for type in typelist:
data = data+type
return Carbon.Res.Handle(data)
def StandardGetFile(*typelist):
"""Ask for an input file, optionally specifying 4-char file types that are
allowable"""
return apply(PromptGetFile, (None,)+typelist)
def PromptGetFile(prompt, *typelist):
"""Ask for an input file giving the user a prompt message. Optionally you can
specifying 4-char file types that are allowable"""
args = {}
flags = 0x56
typehandle = _mktypelist(typelist)
if typehandle:
args['typeList'] = typehandle
else:
flags = flags | 0x01
if prompt:
args['message'] = prompt
args['preferenceKey'] = 'PyMC'
if _movablemodal:
args['eventProc'] = None
args['dialogOptionFlags'] = flags
_handleSetFolder(args)
try:
rr = Nav.NavChooseFile(args)
good = 1
except Nav.error, arg:
if arg[0] != -128: # userCancelledErr
raise Nav.error, arg
good = 0
fss = None
else:
if rr.selection:
fss = FSSpec(rr.selection[0])
else:
fss = None
good = 0
## if typehandle:
## typehandle.DisposeHandle()
return fss, good
def StandardPutFile(prompt, default=None):
"""Ask the user for an output file, with a prompt. Optionally you cn supply a
default output filename"""
args = {}
flags = 0x07
if prompt:
args['message'] = prompt
args['preferenceKey'] = 'PyMC'
if _movablemodal:
args['eventProc'] = None
if default:
args['savedFileName'] = default
args['dialogOptionFlags'] = flags
_handleSetFolder(args)
try:
rr = Nav.NavPutFile(args)
good = 1
except Nav.error, arg:
if arg[0] != -128: # userCancelledErr
raise Nav.error, arg
good = 0
fss = None
else:
fss = FSSpec(rr.selection[0])
return fss, good
def SetFolder(folder):
global _curfolder
if _curfolder:
rv = _curfolder
else:
rv = None
_curfolder = FSSpec(folder)
return rv
def _handleSetFolder(args):
global _curfolder
if not _curfolder:
return
import aepack
fss = _curfolder
aedesc = aepack.pack(fss)
args['defaultLocation'] = aedesc
_curfolder = None
def GetDirectory(prompt=None):
"""Ask the user to select a folder. Optionally you can give a prompt."""
args = {}
flags = 0x17
if prompt:
args['message'] = prompt
args['preferenceKey'] = 'PyMC'
if _movablemodal:
args['eventProc'] = None
args['dialogOptionFlags'] = flags
_handleSetFolder(args)
try:
rr = Nav.NavChooseFolder(args)
good = 1
except Nav.error, arg:
if arg[0] != -128: # userCancelledErr
raise Nav.error, arg
good = 0
fss = None
else:
fss = FSSpec(rr.selection[0])
return fss, good
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