mirror of https://github.com/python/cpython.git
94 lines
3.1 KiB
Python
94 lines
3.1 KiB
Python
# This script generates a Python interface for an Apple Macintosh Manager.
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# It uses the "bgen" package to generate C code.
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# The function specifications are generated by scanning the mamager's header file,
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# using the "scantools" package (customized for this particular manager).
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import string
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import addpack
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addpack.addpack(':Tools:bgen:bgen')
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# Declarations that change for each manager
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MACHEADERFILE = 'QuickDraw.h' # The Apple header file
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MODNAME = 'Qd' # The name of the module
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OBJECTNAME = 'Graf' # The basic name of the objects used here
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# The following is *usually* unchanged but may still require tuning
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MODPREFIX = MODNAME # The prefix for module-wide routines
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OBJECTTYPE = OBJECTNAME + 'Ptr' # The C type used to represent them
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OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
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INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
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EXTRAFILE = string.lower(MODPREFIX) + 'edit.py' # A similar file but hand-made
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OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
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from macsupport import *
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# Create the type objects
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GrafPtr = WindowPtr
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class TextThingieClass(FixedInputBufferType):
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def getargsCheck(self, name):
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pass
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TextThingie = TextThingieClass(None)
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# These are temporary!
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Fixed = long
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RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
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PicHandle = OpaqueByValueType("PicHandle", "ResObj")
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PolyHandle = OpaqueByValueType("PolyHandle", "ResObj")
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PixMapHandle = OpaqueByValueType("PixMapHandle", "ResObj")
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PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj")
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PatHandle = OpaqueByValueType("PatHandle", "ResObj")
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CursHandle = OpaqueByValueType("CursHandle", "ResObj")
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includestuff = includestuff + """
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#include <%s>""" % MACHEADERFILE + """
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#include <Desk.h>
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#define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */
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"""
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class MyObjectDefinition(GlobalObjectDefinition):
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def outputCheckNewArg(self):
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Output("if (itself == NULL) return PyMac_Error(resNotFound);")
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def outputCheckConvertArg(self):
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OutLbrace("if (DlgObj_Check(v))")
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Output("*p_itself = ((WindowObject *)v)->ob_itself;")
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Output("return 1;")
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OutRbrace()
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Out("""
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if (v == Py_None) { *p_itself = NULL; return 1; }
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if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
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""")
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def outputFreeIt(self, itselfname):
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Output("DisposeWindow(%s);", itselfname)
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# From here on it's basically all boiler plate...
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# Create the generator groups and link them
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module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
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##object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
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##module.addobject(object)
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# Create the generator classes used to populate the lists
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Function = OSErrFunctionGenerator
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Method = OSErrMethodGenerator
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# Create and populate the lists
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functions = []
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methods = []
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execfile(INPUTFILE)
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#execfile(EXTRAFILE)
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# add the populated lists to the generator groups
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# (in a different wordl the scan program would generate this)
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for f in functions: module.add(f)
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for f in methods: object.add(f)
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# generate output (open the output file as late as possible)
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SetOutputFileName(OUTPUTFILE)
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module.generate()
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SetOutputFile() # Close it
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