Mac/Modules/qdoffs/qdoffssupport.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 = 'QDOffscreen.h'         # The Apple header file
  10 MODNAME = 'Qdoffs'                              # The name of the module
  11 OBJECTNAME = 'GWorld'                   # The basic name of the objects used here
  12
  13 # The following is *usually* unchanged but may still require tuning
  14 MODPREFIX = MODNAME                     # The prefix for module-wide routines
  15 OBJECTTYPE = OBJECTNAME + 'Ptr'         # The C type used to represent them
  16 OBJECTPREFIX = OBJECTNAME + 'Obj'       # The prefix for object methods
  17 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
  18 #EDITFILE = string.lower(MODPREFIX) + 'edit.py' # The manual definitions
  19 OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program
  20
  21 from macsupport import *
  22
  23 # Create the type objects
  24
  25 GWorldPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
  26 GWorldFlags = Type("GWorldFlags", "l")
  27 GDHandle = OpaqueByValueType("GDHandle", "ResObj")
  28 OptGDHandle = OpaqueByValueType("GDHandle", "OptResObj")
  29 CTabHandle = OpaqueByValueType("CTabHandle", "OptResObj")
  30 PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
  31 PixMapHandle = OpaqueByValueType("PixMapHandle", "ResObj")
  32 CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj")
  33 GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj")
  34 QDErr = OSErrType("QDErr", 'h')
  35
  36 includestuff = includestuff + """
  37 #include <%s>""" % MACHEADERFILE + """
  38
  39 #define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */
  40
  41 """
  42
  43
  44 class MyObjectDefinition(GlobalObjectDefinition):
  45         def outputCheckNewArg(self):
  46                 Output("if (itself == NULL) return PyMac_Error(resNotFound);")
  47 ##      def outputInitStructMembers(self):
  48 ##              GlobalObjectDefinition.outputInitStructMembers(self)
  49 ##              Output("SetWRefCon(itself, (long)it);")
  50 ##      def outputCheckConvertArg(self):
  51 ##              OutLbrace("if (DlgObj_Check(v))")
  52 ##              Output("*p_itself = ((WindowObject *)v)->ob_itself;")
  53 ##              Output("return 1;")
  54 ##              OutRbrace()
  55 ##              Out("""
  56 ##              if (v == Py_None) { *p_itself = NULL; return 1; }
  57 ##              if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
  58 ##              """)
  59         def outputFreeIt(self, itselfname):
  60                 Output("DisposeGWorld(%s);", itselfname)
  61 # From here on it's basically all boiler plate...
  62
  63 # Create the generator groups and link them
  64 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  65 object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
  66 module.addobject(object)
  67
  68
  69 # Create the generator classes used to populate the lists
  70 Function = OSErrFunctionGenerator
  71 Method = OSErrMethodGenerator
  72
  73 # Create and populate the lists
  74 functions = []
  75 methods = []
  76 execfile(INPUTFILE)
  77
  78
  79 # add the populated lists to the generator groups
  80 # (in a different wordl the scan program would generate this)
  81 for f in functions: module.add(f)
  82 for f in methods: object.add(f)
  83
  84
  85
  86 # generate output (open the output file as late as possible)
  87 SetOutputFileName(OUTPUTFILE)
  88 module.generate()