Mac/Modules/fm/fmsupport.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 = 'Fonts.h'               # The Apple header file
  10 MODNAME = '_Fm'                         # The name of the module
  11
  12 # The following is *usually* unchanged but may still require tuning
  13 MODPREFIX = 'Fm'                        # The prefix for module-wide routines
  14 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
  15 OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program
  16
  17 from macsupport import *
  18
  19 # Create the type objects
  20
  21 class RevVarInputBufferType(VarInputBufferType):
  22     def passInput(self, name):
  23         return "%s__len__, %s__in__" % (name, name)
  24
  25 TextBuffer = RevVarInputBufferType()
  26
  27
  28 includestuff = includestuff + """
  29 #include <Carbon/Carbon.h>
  30
  31
  32 /*
  33 ** Parse/generate ComponentDescriptor records
  34 */
  35 static PyObject *
  36 FMRec_New(FMetricRec *itself)
  37 {
  38
  39         return Py_BuildValue("O&O&O&O&O&",
  40                 PyMac_BuildFixed, itself->ascent,
  41                 PyMac_BuildFixed, itself->descent,
  42                 PyMac_BuildFixed, itself->leading,
  43                 PyMac_BuildFixed, itself->widMax,
  44                 ResObj_New, itself->wTabHandle);
  45 }
  46
  47 #if 0
  48 /* Not needed... */
  49 static int
  50 FMRec_Convert(PyObject *v, FMetricRec *p_itself)
  51 {
  52         return PyArg_ParseTuple(v, "O&O&O&O&O&",
  53                 PyMac_GetFixed, &itself->ascent,
  54                 PyMac_GetFixed, &itself->descent,
  55                 PyMac_GetFixed, &itself->leading,
  56                 PyMac_GetFixed, &itself->widMax,
  57                 ResObj_Convert, &itself->wTabHandle);
  58 }
  59 #endif
  60
  61 """
  62
  63 FMetricRecPtr = OpaqueType('FMetricRec', 'FMRec')
  64
  65 # Create the generator groups and link them
  66 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  67
  68 # Create the generator classes used to populate the lists
  69 Function = OSErrWeakLinkFunctionGenerator
  70
  71 # Create and populate the lists
  72 functions = []
  73 execfile(INPUTFILE)
  74
  75 # add the populated lists to the generator groups
  76 # (in a different wordl the scan program would generate this)
  77 for f in functions: module.add(f)
  78
  79 # generate output (open the output file as late as possible)
  80 SetOutputFileName(OUTPUTFILE)
  81 module.generate()