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 MODNAME = '_Help'                               # The name of the module

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

    11 KIND = 'Record'                         # Usually 'Ptr' or 'Handle'

    12 

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

    14 MODPREFIX = 'Help'                      # The prefix for module-wide routines

    15 OBJECTTYPE = OBJECTNAME + KIND          # 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 OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program

    19 

    20 from macsupport import *

    21 

    22 # Create the type objects

    23 MenuRef = OpaqueByValueType("MenuRef", "MenuObj")

    24 MenuItemIndex = Type("MenuItemIndex", "H")

    25 

    26 #WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)

    27 

    28 #RgnHandle = FakeType("(RgnHandle)0")

    29 # XXXX Should be next, but this will break a lot of code...

    30 # RgnHandle = OpaqueByValueType("RgnHandle", "OptResObj")

    31 

    32 #KeyMap = ArrayOutputBufferType("KeyMap")

    33 ##MacOSEventKind = Type("MacOSEventKind", "h") # Old-style

    34 ##MacOSEventMask = Type("MacOSEventMask", "h") # Old-style

    35 #EventMask = Type("EventMask", "H")

    36 #EventKind = Type("EventKind", "H")

    37 

    38 includestuff = includestuff + """

    39 #include <Carbon/Carbon.h>

    40 """

    41 

    42 class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):

    43     def outputCheckNewArg(self):

    44         Output("if (itself == NULL) return PyMac_Error(resNotFound);")

    45     def outputCheckConvertArg(self):

    46         OutLbrace("if (DlgObj_Check(v))")

    47         Output("*p_itself = ((WindowObject *)v)->ob_itself;")

    48         Output("return 1;")

    49         OutRbrace()

    50         Out("""

    51         if (v == Py_None) { *p_itself = NULL; return 1; }

    52         if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }

    53         """)

    54 

    55 # From here on it's basically all boiler plate...

    56 

    57 # Create the generator groups and link them

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

    59 ##object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)

    60 ##module.addobject(object)

    61 

    62 # Create the generator classes used to populate the lists

    63 Function = OSErrFunctionGenerator

    64 ##Method = OSErrMethodGenerator

    65 

    66 # Create and populate the lists

    67 functions = []

    68 ##methods = []

    69 execfile(INPUTFILE)

    70 

    71 # add the populated lists to the generator groups

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

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

    74 ##for f in methods: object.add(f)

    75 

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

    77 SetOutputFileName(OUTPUTFILE)

    78 module.generate()