# This script generates a Python interface for an Apple Macintosh Manager.

# It uses the "bgen" package to generate C code.

# The function specifications are generated by scanning the mamager's header file,

# using the "scantools" package (customized for this particular manager).

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

# massaged by hand.

import string

# Declarations that change for each manager

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

MODNAME = '_Scrap'                              # The name of the module

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

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

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

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

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

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

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

from macsupport import *

# Create the type objects

ScrapRef = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)

includestuff = includestuff + """

#include <Carbon/Carbon.h>

/*

** Generate ScrapInfo records

*/

static PyObject *

SCRRec_New(itself)

        ScrapStuff *itself;

{

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

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

                PyMac_BuildStr255, itself->scrapName);

}

"""

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

ScrapFlavorType = OSTypeType('ScrapFlavorType')

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

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

putscrapbuffer = FixedInputBufferType('void *')

class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):

    pass

# Create the generator groups and link them

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

object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)

module.addobject(object)

# Create the generator classes used to populate the lists

Function = OSErrFunctionGenerator

Method = OSErrMethodGenerator

# Create and populate the lists

functions = []

methods = []

execfile(INPUTFILE)

# add the populated lists to the generator groups

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

for f in functions: module.add(f)

for f in methods: object.add(f)

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

SetOutputFileName(OUTPUTFILE)

module.generate()