Lib/plat-mac/Carbon/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 SetControlData_Handle(control, part, selector, data):
   8     control.SetControlData_Handle(part, selector, data)
   9
  10 def GetControlData_Handle(control, part, selector):
  11     return control.GetControlData_Handle(part, selector)
  12
  13 _accessdict = {
  14     kControlPopupButtonMenuHandleTag: (SetControlData_Handle, GetControlData_Handle),
  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     kControlListBoxDoubleClickTag: ("b", None, None),
  26 }
  27
  28 def SetControlData(control, part, selector, data):
  29     if _accessdict.has_key(selector):
  30         setfunc, getfunc = _accessdict[selector]
  31         setfunc(control, part, selector, data)
  32         return
  33     if not _codingdict.has_key(selector):
  34         raise KeyError, ('Unknown control selector', selector)
  35     structfmt, coder, decoder = _codingdict[selector]
  36     if coder:
  37         data = coder(data)
  38     if structfmt:
  39         data = struct.pack(structfmt, data)
  40     control.SetControlData(part, selector, data)
  41
  42 def GetControlData(control, part, selector):
  43     if _accessdict.has_key(selector):
  44         setfunc, getfunc = _accessdict[selector]
  45         return getfunc(control, part, selector, data)
  46     if not _codingdict.has_key(selector):
  47         raise KeyError, ('Unknown control selector', selector)
  48     structfmt, coder, decoder = _codingdict[selector]
  49     data = control.GetControlData(part, selector)
  50     if structfmt:
  51         data = struct.unpack(structfmt, data)
  52     if decoder:
  53         data = decoder(data)
  54     if type(data) == type(()) and len(data) == 1:
  55         data = data[0]
  56     return data