Mac/Modules/menu/menusupport.py

   1 # This script generates a Python interface for an Apple Macintosh Manager.
   2 # It uses the "bgen" package to generate C code.
   3 # The function specifications are generated by scanning the mamager's header file,
   4 # using the "scantools" package (customized for this particular manager).
   5
   6 import string
   7
   8 # Declarations that change for each manager
   9 MACHEADERFILE = 'Menus.h'               # The Apple header file
  10 MODNAME = 'Menu'                        # The name of the module
  11 OBJECTNAME = 'Menu'                     # The basic name of the objects used here
  12
  13 # The following is *usually* unchanged but may still require tuning
  14 MODPREFIX = MODNAME                     # The prefix for module-wide routines
  15 OBJECTTYPE = OBJECTNAME + 'Handle'      # The C type used to represent them
  16 OBJECTPREFIX = MODPREFIX + 'Obj'        # The prefix for object methods
  17 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
  18 EXTRAFILE = string.lower(MODPREFIX) + 'edit.py' # A similar file but hand-made
  19 OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program
  20
  21 from macsupport import *
  22
  23 # Create the type objects
  24
  25 MenuHandle = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
  26 MenuRef = MenuHandle
  27 Handle = OpaqueByValueType("Handle", "ResObj")
  28 MenuBarHandle = OpaqueByValueType("MenuBarHandle", "ResObj")
  29 MenuID = Type("MenuID", "h")
  30 MenuItemIndex = Type("MenuItemIndex", "h")
  31 MenuCommand = Type("MenuCommand", "l")
  32 MenuAttributes = Type("MenuAttributes", "l")
  33 MenuItemAttributes = Type("MenuItemAttributes", "l")
  34 unsigned_char = Type('unsigned char', 'b')
  35 FMFontFamily = Type("FMFontFamily", "h")
  36 FMFontStyle = Type("FMFontStyle", "h")
  37
  38 includestuff = includestuff + """
  39 #include <Devices.h> /* Defines OpenDeskAcc in universal headers */
  40 #include <%s>""" % MACHEADERFILE + """
  41
  42 #if !ACCESSOR_CALLS_ARE_FUNCTIONS
  43 #define GetMenuID(menu) ((*(menu))->menuID)
  44 #define GetMenuWidth(menu) ((*(menu))->menuWidth)
  45 #define GetMenuHeight(menu) ((*(menu))->menuHeight)
  46
  47 #define SetMenuID(menu, id) ((*(menu))->menuID = (id))
  48 #define SetMenuWidth(menu, width) ((*(menu))->menuWidth = (width))
  49 #define SetMenuHeight(menu, height) ((*(menu))->menuHeight = (height))
  50 #endif
  51
  52 #define as_Menu(h) ((MenuHandle)h)
  53 #define as_Resource(h) ((Handle)h)
  54 """
  55
  56 class MyObjectDefinition(GlobalObjectDefinition):
  57         pass
  58
  59 # Create the generator groups and link them
  60 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  61 object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
  62 module.addobject(object)
  63
  64 # Create the generator classes used to populate the lists
  65 Function = OSErrFunctionGenerator
  66 Method = OSErrMethodGenerator
  67
  68 # Create and populate the lists
  69 functions = []
  70 methods = []
  71 execfile(INPUTFILE)
  72 execfile(EXTRAFILE)
  73
  74 # add the populated lists to the generator groups
  75 for f in functions: module.add(f)
  76 for f in methods: object.add(f)
  77
  78 # generate output (open the output file as late as possible)
  79 SetOutputFileName(OUTPUTFILE)
  80 module.generate()