Mac/Modules/help/helpsupport.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 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()