Mac/Modules/icn/icnsupport.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 = 'Icons.h'               # The Apple header file
  10 MODNAME = 'Icn'                         # The name of the module
  11 OBJECTNAME = 'Icon'                     # The basic name of the objects used here
  12 KIND = 'Handle'                         # 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 CIconHandle = OpaqueByValueType("CIconHandle", "ResObj")
  25 IconSuiteRef = OpaqueByValueType("IconSuiteRef", "ResObj")
  26 IconCacheRef = OpaqueByValueType("IconCacheRef", "ResObj")
  27 RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
  28 IconAlignmentType = Type("IconAlignmentType", "h")
  29 IconTransformType = Type("IconTransformType", "h")
  30 IconSelectorValue = Type("IconSelectorValue", "l")
  31 RGBColor = OpaqueType("RGBColor", "QdRGB")
  32
  33 #WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)
  34
  35 # RgnHandle = FakeType("(RgnHandle)0")
  36 # XXXX Should be next, but this will break a lot of code...
  37 # RgnHandle = OpaqueByValueType("RgnHandle", "OptResObj")
  38
  39 # KeyMap = ArrayOutputBufferType("KeyMap")
  40 #MacOSEventKind = Type("MacOSEventKind", "h") # Old-style
  41 #MacOSEventMask = Type("MacOSEventMask", "h") # Old-style
  42 #EventMask = Type("EventMask", "h")
  43 #EventKind = Type("EventKind", "h")
  44
  45 includestuff = includestuff + """
  46 #include <%s>""" % MACHEADERFILE + """
  47
  48 /* Exported by Qdmodule.c: */
  49 extern PyObject *QdRGB_New(RGBColor *);
  50 extern int QdRGB_Convert(PyObject *, RGBColor *);
  51
  52 #define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */
  53 """
  54
  55 class MyObjectDefinition(GlobalObjectDefinition):
  56         def outputCheckNewArg(self):
  57                 Output("if (itself == NULL) return PyMac_Error(resNotFound);")
  58         def outputCheckConvertArg(self):
  59                 OutLbrace("if (DlgObj_Check(v))")
  60                 Output("*p_itself = ((WindowObject *)v)->ob_itself;")
  61                 Output("return 1;")
  62                 OutRbrace()
  63                 Out("""
  64                 if (v == Py_None) { *p_itself = NULL; return 1; }
  65                 if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
  66                 """)
  67
  68 # From here on it's basically all boiler plate...
  69
  70 # Create the generator groups and link them
  71 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  72 ##object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
  73 ##module.addobject(object)
  74
  75 # Create the generator classes used to populate the lists
  76 Function = OSErrFunctionGenerator
  77 ##Method = OSErrMethodGenerator
  78
  79 # Create and populate the lists
  80 functions = []
  81 ##methods = []
  82 execfile(INPUTFILE)
  83
  84 # add the populated lists to the generator groups
  85 # (in a different wordl the scan program would generate this)
  86 for f in functions: module.add(f)
  87 ##for f in methods: object.add(f)
  88
  89 # generate output (open the output file as late as possible)
  90 SetOutputFileName(OUTPUTFILE)
  91 module.generate()
  92