1 files changed, 108 insertions, 0 deletions
diff --git a/Mac/Tools/IDE/MacPrefs.py b/Mac/Tools/IDE/MacPrefs.py
new file mode 100644
index 0000000..8a442ea
--- /dev/null
+++ b/Mac/Tools/IDE/MacPrefs.py
@@ -0,0 +1,108 @@
+import macfs
+import marshal
+import types
+
+kOnSystemDisk = 0x8000
+
+
+class PrefObject:
+	
+	def __init__(self, dict = None):
+		if dict == None:
+			self._prefsdict = {}
+		else:
+			self._prefsdict = dict
+	
+	def __len__(self):
+		return len(self._prefsdict)
+	
+	def __delattr__(self, attr):
+		if self._prefsdict.has_key(attr):
+			del self._prefsdict[attr]
+		else:
+			raise AttributeError, 'delete non-existing instance attribute'
+	
+	def __getattr__(self, attr):
+		if attr == '__members__':
+			keys = self._prefsdict.keys()
+			keys.sort()
+			return keys
+		try:
+			return self._prefsdict[attr]
+		except KeyError:
+			raise AttributeError, attr
+	
+	def __setattr__(self, attr, value):
+		if attr[0] <> '_':
+			self._prefsdict[attr] = value
+		else:
+			self.__dict__[attr] = value
+	
+	def getprefsdict(self):
+		return self._prefsdict
+
+
+class PrefFile(PrefObject):
+	
+	def __init__(self, path, creator = 'Pyth'):
+		# Find the preferences folder and our prefs file, create if needed.
+		self.__path = path
+		self.__creator = creator
+		self._prefsdict = {}
+		try:
+			prefdict = marshal.load(open(self.__path, 'rb'))
+		except IOError:
+			pass
+		else:
+			for key, value in prefdict.items():
+				if type(value) == types.DictType:
+					self._prefsdict[key] = PrefObject(value)
+				else:
+					self._prefsdict[key] = value
+	
+	def save(self):
+		prefdict = {}
+		for key, value in self._prefsdict.items():
+			if type(value) == types.InstanceType:
+				prefdict[key] = value.getprefsdict()
+				if not prefdict[key]:
+					del prefdict[key]
+			else:
+				prefdict[key] = value
+		marshal.dump(prefdict, open(self.__path, 'wb'))
+		fss = macfs.FSSpec(self.__path)
+		fss.SetCreatorType(self.__creator, 'pref')
+	
+	def __getattr__(self, attr):
+		if attr == '__members__':
+			keys = self._prefsdict.keys()
+			keys.sort()
+			return keys
+		try:
+			return self._prefsdict[attr]
+		except KeyError:
+			if attr[0] <> '_':
+				self._prefsdict[attr] = PrefObject()
+				return self._prefsdict[attr]
+			else:
+				raise AttributeError, attr
+
+
+_prefscache = {}
+
+def GetPrefs(prefname, creator = 'Pyth'):
+	import macostools, os
+	if _prefscache.has_key(prefname):
+		return _prefscache[prefname]
+	# Find the preferences folder and our prefs file, create if needed.
+	vrefnum, dirid = macfs.FindFolder(kOnSystemDisk, 'pref', 0)
+	prefsfolder_fss = macfs.FSSpec((vrefnum, dirid, ''))
+	prefsfolder = prefsfolder_fss.as_pathname()
+	path = os.path.join(prefsfolder, prefname)
+	head, tail = os.path.split(path)
+	# make sure the folder(s) exist
+	macostools.mkdirs(head)
+	
+	preffile = PrefFile(path, creator)
+	_prefscache[prefname] = preffile
+	return preffile