1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
import macfs
import marshal
import types
from MACFS import kOnSystemDisk
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
|
