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 = 'Menus.h' # The Apple header file 10MODNAME = '_Menu' # The name of the module 11OBJECTNAME = 'Menu' # The basic name of the objects used here 12 13# The following is *usually* unchanged but may still require tuning 14MODPREFIX = 'Menu' # The prefix for module-wide routines 15OBJECTTYPE = OBJECTNAME + 'Handle' # The C type used to represent them 16OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods 17INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner 18EXTRAFILE = string.lower(MODPREFIX) + 'edit.py' # A similar file but hand-made 19OUTPUTFILE = MODNAME + "module.c" # The file generated by this program 20 21from macsupport import * 22 23# Create the type objects 24 25MenuHandle = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX) 26MenuRef = MenuHandle 27OptMenuRef = OpaqueByValueType(OBJECTTYPE, "Opt" + OBJECTPREFIX) 28Handle = OpaqueByValueType("Handle", "ResObj") 29MenuBarHandle = OpaqueByValueType("MenuBarHandle", "ResObj") 30MenuID = Type("MenuID", "h") 31MenuItemIndex = Type("MenuItemIndex", "h") 32MenuItemID = Type("MenuItemID", "l") 33MenuCommand = Type("MenuCommand", "l") 34MenuAttributes = Type("MenuAttributes", "l") 35MenuItemAttributes = Type("MenuItemAttributes", "l") 36unsigned_char = Type('unsigned char', 'b') 37FMFontFamily = Type("FMFontFamily", "h") 38FMFontStyle = Type("FMFontStyle", "h") 39UniChar = Type("UniChar", "h") 40 41includestuff = includestuff + """ 42#include <Carbon/Carbon.h> 43 44 45#ifdef USE_TOOLBOX_OBJECT_GLUE 46 47extern PyObject *_MenuObj_New(MenuHandle); 48extern int _MenuObj_Convert(PyObject *, MenuHandle *); 49 50#define MenuObj_New _MenuObj_New 51#define MenuObj_Convert _MenuObj_Convert 52#endif 53 54#define as_Menu(h) ((MenuHandle)h) 55#define as_Resource(h) ((Handle)h) 56 57 58/* Alternative version of MenuObj_New, which returns None for NULL argument */ 59PyObject *OptMenuObj_New(MenuRef itself) 60{ 61 if (itself == NULL) { 62 Py_INCREF(Py_None); 63 return Py_None; 64 } 65 return MenuObj_New(itself); 66} 67 68/* Alternative version of MenuObj_Convert, which returns NULL for a None argument */ 69int OptMenuObj_Convert(PyObject *v, MenuRef *p_itself) 70{ 71 if ( v == Py_None ) { 72 *p_itself = NULL; 73 return 1; 74 } 75 return MenuObj_Convert(v, p_itself); 76} 77""" 78 79initstuff = initstuff + """ 80 PyMac_INIT_TOOLBOX_OBJECT_NEW(MenuHandle, MenuObj_New); 81 PyMac_INIT_TOOLBOX_OBJECT_CONVERT(MenuHandle, MenuObj_Convert); 82""" 83 84class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition): 85 pass 86 87# Create the generator groups and link them 88module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff) 89object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE) 90module.addobject(object) 91 92# Create the generator classes used to populate the lists 93Function = OSErrWeakLinkFunctionGenerator 94Method = OSErrWeakLinkMethodGenerator 95 96# Create and populate the lists 97functions = [] 98methods = [] 99execfile(INPUTFILE) 100execfile(EXTRAFILE) 101 102# add the populated lists to the generator groups 103for f in functions: module.add(f) 104for f in methods: object.add(f) 105 106# generate output (open the output file as late as possible) 107SetOutputFileName(OUTPUTFILE) 108module.generate() 109