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 = 'Menu'                      # 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 #ifdef WITHOUT_FRAMEWORKS
  40 #include <Devices.h> /* Defines OpenDeskAcc in universal headers */
  41 #include <Menus.h>
  42 #else
  43 #include <Carbon/Carbon.h>
  44 #endif
  45
  46
  47 #ifdef USE_TOOLBOX_OBJECT_GLUE
  48
  49 extern PyObject *_MenuObj_New(MenuHandle);
  50 extern int _MenuObj_Convert(PyObject *, MenuHandle *);
  51
  52 #define MenuObj_New _MenuObj_New
  53 #define MenuObj_Convert _MenuObj_Convert
  54 #endif
  55
  56 #if !ACCESSOR_CALLS_ARE_FUNCTIONS
  57 #define GetMenuID(menu) ((*(menu))->menuID)
  58 #define GetMenuWidth(menu) ((*(menu))->menuWidth)
  59 #define GetMenuHeight(menu) ((*(menu))->menuHeight)
  60
  61 #define SetMenuID(menu, id) ((*(menu))->menuID = (id))
  62 #define SetMenuWidth(menu, width) ((*(menu))->menuWidth = (width))
  63 #define SetMenuHeight(menu, height) ((*(menu))->menuHeight = (height))
  64 #endif
  65
  66 #define as_Menu(h) ((MenuHandle)h)
  67 #define as_Resource(h) ((Handle)h)
  68 """
  69
  70 initstuff = initstuff + """
  71         PyMac_INIT_TOOLBOX_OBJECT_NEW(MenuHandle, MenuObj_New);
  72         PyMac_INIT_TOOLBOX_OBJECT_CONVERT(MenuHandle, MenuObj_Convert);
  73 """
  74
  75 class MyObjectDefinition(GlobalObjectDefinition):
  76         pass
  77
  78 # Create the generator groups and link them
  79 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  80 object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
  81 module.addobject(object)
  82
  83 # Create the generator classes used to populate the lists
  84 Function = OSErrWeakLinkFunctionGenerator
  85 Method = OSErrWeakLinkMethodGenerator
  86
  87 # Create and populate the lists
  88 functions = []
  89 methods = []
  90 execfile(INPUTFILE)
  91 execfile(EXTRAFILE)
  92
  93 # add the populated lists to the generator groups
  94 for f in functions: module.add(f)
  95 for f in methods: object.add(f)
  96
  97 # generate output (open the output file as late as possible)
  98 SetOutputFileName(OUTPUTFILE)
  99 module.generate()