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 # NOTE: the scrap include file is so bad that the bgen output has to be

     7 # massaged by hand.

     8 

     9 import string

    10 

    11 # Declarations that change for each manager

    12 MACHEADERFILE = 'Scrap.h'               # The Apple header file

    13 MODNAME = '_Scrap'                              # The name of the module

    14 OBJECTNAME = 'Scrap'                    # The basic name of the objects used here

    15 

    16 # The following is *usually* unchanged but may still require tuning

    17 MODPREFIX = 'Scrap'                     # The prefix for module-wide routines

    18 OBJECTTYPE = OBJECTNAME + 'Ref' # The C type used to represent them

    19 OBJECTPREFIX = MODPREFIX + 'Obj'        # The prefix for object methods

    20 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner

    21 OUTPUTFILE = '@' + MODNAME + "module.c" # The file generated by this program

    22 

    23 from macsupport import *

    24 

    25 # Create the type objects

    26 ScrapRef = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)

    27 

    28 includestuff = includestuff + """

    29 #include <Carbon/Carbon.h>

    30 

    31 /*

    32 ** Generate ScrapInfo records

    33 */

    34 static PyObject *

    35 SCRRec_New(itself)

    36         ScrapStuff *itself;

    37 {

    38 

    39         return Py_BuildValue("lO&hhO&", itself->scrapSize,

    40                 ResObj_New, itself->scrapHandle, itself->scrapCount, itself->scrapState,

    41                 PyMac_BuildStr255, itself->scrapName);

    42 }

    43 """

    44 

    45 ScrapStuffPtr = OpaqueByValueType('ScrapStuffPtr', 'SCRRec')

    46 ScrapFlavorType = OSTypeType('ScrapFlavorType')

    47 ScrapFlavorFlags = Type('ScrapFlavorFlags', 'l')

    48 #ScrapFlavorInfo = OpaqueType('ScrapFlavorInfo', 'ScrapFlavorInfo')

    49 putscrapbuffer = FixedInputBufferType('void *')

    50 

    51 class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):

    52     pass

    53 

    54 # Create the generator groups and link them

    55 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)

    56 object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)

    57 module.addobject(object)

    58 

    59 # Create the generator classes used to populate the lists

    60 Function = OSErrFunctionGenerator

    61 Method = OSErrMethodGenerator

    62 

    63 # Create and populate the lists

    64 functions = []

    65 methods = []

    66 execfile(INPUTFILE)

    67 

    68 # add the populated lists to the generator groups

    69 # (in a different wordl the scan program would generate this)

    70 for f in functions: module.add(f)

    71 for f in methods: object.add(f)

    72 

    73 # generate output (open the output file as late as possible)

    74 SetOutputFileName(OUTPUTFILE)

    75 module.generate()