Mac/Lib/pythonprefs.py

   1 from preferences import *
   2
   3 # Names of Python resources
   4 PREFNAME_NAME="PythonPreferenceFileName"
   5
   6 # Resource IDs in the preferences file
   7 PATH_ID = 228
   8 DIR_ID = 228
   9 POPT_ID = 228
  10 GUSI_ID = 10240
  11
  12 # Override IDs (in the applet)
  13 OVERRIDE_PATH_ID = 229
  14 OVERRIDE_DIR_ID = 229
  15 OVERRIDE_POPT_ID = 229
  16 OVERRIDE_GUSI_ID = 10241
  17
  18 # version
  19 CUR_VERSION=8
  20
  21 preffilename = PstringLoader(AnyResLoader('STR ', resname=PREFNAME_NAME)).load()
  22 pref_fss = preferencefile(preffilename, 'Pyth', 'pref')
  23
  24 class PoptLoader(VersionLoader):
  25         def __init__(self, loader):
  26                 VersionLoader.__init__(self, "bbbbbbbbbbbbbbbb", loader)
  27
  28         def versioncheck(self, data):
  29                 if data[0] == CUR_VERSION:
  30                         return data
  31                 print 'old resource'
  32                 raise Error, "old resource"
  33
  34 class GusiLoader:
  35         def __init__(self, loader):
  36                 self.loader = loader
  37                 self.data = None
  38
  39         def load(self):
  40                 self.data = self.loader.load()
  41                 while self.data[10:14] != '0181':
  42                         self.loader.delete(1)
  43                         self.loader.load()
  44                 tp = self.data[0:4]
  45                 cr = self.data[4:8]
  46                 flags = ord(self.data[9])
  47                 return cr, tp
  48
  49         def save(self, (cr, tp)):
  50                 flags = ord(self.data[9])
  51                 newdata = tp + cr + self.data[8:]
  52                 self.loader.save(newdata)
  53
  54 popt_default_default = NullLoader(chr(CUR_VERSION) + 14*'\0' + '\001')
  55 popt_default = AnyResLoader('Popt', POPT_ID, default=popt_default_default)
  56 popt_loader = ResLoader(pref_fss, 'Popt', POPT_ID, default=popt_default)
  57 popt = PoptLoader(popt_loader)
  58
  59 dir_default = AnyResLoader('alis', DIR_ID)
  60 dir = ResLoader(pref_fss, 'alis', DIR_ID, default=dir_default)
  61
  62 gusi_default = AnyResLoader('GU\267I', GUSI_ID)
  63 gusi_loader = ResLoader(pref_fss, 'GU\267I', GUSI_ID, default=gusi_default)
  64 gusi = GusiLoader(gusi_loader)
  65
  66 path_default = AnyResLoader('STR#', PATH_ID)
  67 path_loader = ResLoader(pref_fss, 'STR#', PATH_ID, default=path_default)
  68 path = StrListLoader(path_loader)
  69
  70 class PythonOptions:
  71         def __init__(self, popt=popt, dir=dir, gusi=gusi, path=path):
  72                 self.popt = popt
  73                 self.dir = dir
  74                 self.gusi = gusi
  75                 self.path = path
  76
  77         def load(self):
  78                 dict = {}
  79                 dict['path'] = self.path.load()
  80                 diralias = self.dir.load()
  81                 dirfss, dummy = macfs.RawAlias(diralias).Resolve()
  82                 dict['dir'] = dirfss
  83                 dict['creator'], dict['type'] = self.gusi.load()
  84                 flags = self.popt.load()
  85                 dict['version'], dict['inspect'], dict['verbose'], dict['optimize'], \
  86                         dict['unbuffered'], dict['debugging'], dummy, dict['keep_console'], \
  87                         dict['nointopt'], dict['noargs'], dict['tabwarn'], \
  88                         dict['nosite'], dict['nonavservice'], dict['delayconsole'], \
  89                         dict['divisionwarn'], dict['unixnewlines'] = flags
  90                 return dict
  91
  92         def save(self, dict):
  93                 self.path.save(dict['path'])
  94                 diralias = macfs.FSSpec(dict['dir']).NewAlias().data
  95                 self.dir.save(diralias)
  96                 self.gusi.save((dict['creator'], dict['type']))
  97                 flags = dict['version'], dict['inspect'], dict['verbose'], dict['optimize'], \
  98                         dict['unbuffered'], dict['debugging'], 0, dict['keep_console'], \
  99                         dict['nointopt'], dict['noargs'], dict['tabwarn'], \
 100                         dict['nosite'], dict['nonavservice'], dict['delayconsole'], \
 101                         dict['divisionwarn'], dict['unixnewlines']
 102                 self.popt.save(flags)
 103
 104 def AppletOptions(file):
 105         fss = macfs.FSSpec(file)
 106         a_popt = PoptLoader(ResLoader(fss, 'Popt', OVERRIDE_POPT_ID, default=popt_loader))
 107         a_dir = ResLoader(fss, 'alis', OVERRIDE_DIR_ID, default=dir)
 108         a_gusi = GusiLoader(
 109                         ResLoader(fss, 'GU\267I', OVERRIDE_GUSI_ID, default=gusi_loader))
 110         a_path = StrListLoader(
 111                         ResLoader(fss, 'STR#', OVERRIDE_PATH_ID, default=path_loader))
 112         return PythonOptions(a_popt, a_dir, a_gusi, a_path)
 113
 114 def _test():
 115         import preferences
 116         preferences.debug = 1
 117         dict = PythonOptions().load()
 118         for k in dict.keys():
 119                 print k, '\t', dict[k]
 120
 121 if __name__ == '__main__':
 122         _test()
 123