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/Mac/Modules/fm/fmsupport.py

http://unladen-swallow.googlecode.com/
Python | 81 lines | 65 code | 9 blank | 7 comment | 0 complexity | 6200f5d9afa3d5d5731c06e0dcd90c8f MD5 | raw file
 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
 6import string
 7
 8# Declarations that change for each manager
 9MACHEADERFILE = 'Fonts.h'               # The Apple header file
10MODNAME = '_Fm'                         # The name of the module
11
12# The following is *usually* unchanged but may still require tuning
13MODPREFIX = 'Fm'                        # The prefix for module-wide routines
14INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
15OUTPUTFILE = MODNAME + "module.c"       # The file generated by this program
16
17from macsupport import *
18
19# Create the type objects
20
21class RevVarInputBufferType(VarInputBufferType):
22    def passInput(self, name):
23        return "%s__len__, %s__in__" % (name, name)
24
25TextBuffer = RevVarInputBufferType()
26
27
28includestuff = includestuff + """
29#include <Carbon/Carbon.h>
30
31
32/*
33** Parse/generate ComponentDescriptor records
34*/
35static PyObject *
36FMRec_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... */
49static int
50FMRec_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
63FMetricRecPtr = OpaqueType('FMetricRec', 'FMRec')
64
65# Create the generator groups and link them
66module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
67
68# Create the generator classes used to populate the lists
69Function = OSErrWeakLinkFunctionGenerator
70
71# Create and populate the lists
72functions = []
73execfile(INPUTFILE)
74
75# add the populated lists to the generator groups
76# (in a different wordl the scan program would generate this)
77for f in functions: module.add(f)
78
79# generate output (open the output file as late as possible)
80SetOutputFileName(OUTPUTFILE)
81module.generate()