Mac/Lib/lib-toolbox/ControlAccessor.py

   1 # Accessor functions for control properties
   2
   3 from Controls import *
   4 import struct
   5
   6 # These needn't go through this module, but are here for completeness
   7 def SetControlDataHandle(control, part, selector, data):
   8         control.SetControlDataHandle(part, selector, data)
   9
  10 def GetControlDataHandle(control, part, selector):
  11         return control.GetControlDataHandle(part, selector)
  12
  13 _accessdict = {
  14         kControlPopupButtonMenuHandleTag: (SetControlDataHandle, GetControlDataHandle),
  15 }
  16
  17 _codingdict = {
  18         kControlPushButtonDefaultTag : ("b", None, None),
  19
  20         kControlEditTextTextTag: (None, None, None),
  21         kControlEditTextPasswordTag: (None, None, None),
  22
  23         kControlPopupButtonMenuIDTag: ("h", None, None),
  24 }
  25
  26 def SetControlData(control, part, selector, data):
  27         if _accessdict.has_key(selector):
  28                 setfunc, getfunc = _accessdict[selector]
  29                 setfunc(control, part, selector, data)
  30                 return
  31         if not _codingdict.has_key(selector):
  32                 raise KeyError, ('Unknown control selector', selector)
  33         structfmt, coder, decoder = _codingdict[selector]
  34         if coder:
  35                 data = coder(data)
  36         if structfmt:
  37                 data = struct.pack(structfmt, data)
  38         control.SetControlData(part, selector, data)
  39
  40 def GetControlData(control, part, selector):
  41         if _accessdict.has_key(selector):
  42                 setfunc, getfunc = _accessdict[selector]
  43                 return getfunc(control, part, selector, data)
  44         if not _codingdict.has_key(selector):
  45                 raise KeyError, ('Unknown control selector', selector)
  46         structfmt, coder, decoder = _codingdict[selector]
  47         data = control.GetControlData(part, selector)
  48         if structfmt:
  49                 data = struct.unpack(structfmt, data)
  50         if decoder:
  51                 data = decoder(data)
  52         return data
  53