fmsupport.py 2.19 KB
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# This script generates a Python interface for an Apple Macintosh Manager.
# It uses the "bgen" package to generate C code.
# The function specifications are generated by scanning the mamager's header file,
# using the "scantools" package (customized for this particular manager).

import string

# Declarations that change for each manager
MACHEADERFILE = 'Fonts.h'		# The Apple header file
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MODNAME = '_Fm'				# The name of the module
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# The following is *usually* unchanged but may still require tuning
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MODPREFIX = 'Fm'			# The prefix for module-wide routines
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INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
OUTPUTFILE = MODNAME + "module.c"	# The file generated by this program

from macsupport import *

# Create the type objects

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class RevVarInputBufferType(VarInputBufferType):
	def passInput(self, name):
		return "%s__len__, %s__in__" % (name, name)

TextBuffer = RevVarInputBufferType()


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includestuff = includestuff + """
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#include <Carbon/Carbon.h>

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/*
** Parse/generate ComponentDescriptor records
*/
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static PyObject *
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FMRec_New(FMetricRec *itself)
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{

	return Py_BuildValue("O&O&O&O&O&", 
		PyMac_BuildFixed, itself->ascent,
		PyMac_BuildFixed, itself->descent,
		PyMac_BuildFixed, itself->leading,
		PyMac_BuildFixed, itself->widMax,
		ResObj_New, itself->wTabHandle);
}

#if 0
/* Not needed... */
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static int
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FMRec_Convert(PyObject *v, FMetricRec *p_itself)
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{
	return PyArg_ParseTuple(v, "O&O&O&O&O&",
		PyMac_GetFixed, &itself->ascent,
		PyMac_GetFixed, &itself->descent,
		PyMac_GetFixed, &itself->leading,
		PyMac_GetFixed, &itself->widMax,
		ResObj_Convert, &itself->wTabHandle);
}
#endif

"""

FMetricRecPtr = OpaqueType('FMetricRec', 'FMRec')

# Create the generator groups and link them
module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)

# Create the generator classes used to populate the lists
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Function = OSErrWeakLinkFunctionGenerator
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# Create and populate the lists
functions = []
execfile(INPUTFILE)

# add the populated lists to the generator groups
# (in a different wordl the scan program would generate this)
for f in functions: module.add(f)

# generate output (open the output file as late as possible)
SetOutputFileName(OUTPUTFILE)
module.generate()