Mac/Modules/evt/evtsupport.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 = 'Events.h'              # The Apple header file
  10 MODNAME = 'Evt'                         # The name of the module
  11 OBJECTNAME = 'Event'                    # The basic name of the objects used here
  12 KIND = 'Record'                         # Usually 'Ptr' or 'Handle'
  13
  14 # The following is *usually* unchanged but may still require tuning
  15 MODPREFIX = MODNAME                     # The prefix for module-wide routines
  16 OBJECTTYPE = OBJECTNAME + KIND          # The C type used to represent them
  17 OBJECTPREFIX = MODPREFIX + 'Obj'        # The prefix for object methods
  18 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
  19 OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program
  20
  21 from macsupport import *
  22
  23 # Create the type objects
  24
  25 #WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)
  26
  27 RgnHandle = FakeType("(RgnHandle)0") # XXX
  28
  29 KeyMap = ArrayOutputBufferType("KeyMap")
  30
  31 includestuff = includestuff + """
  32 #include <%s>""" % MACHEADERFILE + """
  33 #include <Desk.h>
  34
  35 #define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */
  36 """
  37
  38 class MyObjectDefinition(GlobalObjectDefinition):
  39         def outputCheckNewArg(self):
  40                 Output("if (itself == NULL) return PyMac_Error(resNotFound);")
  41         def outputCheckConvertArg(self):
  42                 OutLbrace("if (DlgObj_Check(v))")
  43                 Output("*p_itself = ((WindowObject *)v)->ob_itself;")
  44                 Output("return 1;")
  45                 OutRbrace()
  46                 Out("""
  47                 if (v == Py_None) { *p_itself = NULL; return 1; }
  48                 if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
  49                 """)
  50
  51 # From here on it's basically all boiler plate...
  52
  53 # Create the generator groups and link them
  54 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  55 ##object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
  56 ##module.addobject(object)
  57
  58 # Create the generator classes used to populate the lists
  59 Function = OSErrFunctionGenerator
  60 ##Method = OSErrMethodGenerator
  61
  62 # Create and populate the lists
  63 functions = []
  64 ##methods = []
  65 execfile(INPUTFILE)
  66 execfile("evtedit.py")
  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()
  76