/Mac/Modules/menu/menusupport.py
http://unladen-swallow.googlecode.com/ · Python · 108 lines · 82 code · 14 blank · 12 comment · 2 complexity · 36419b0df02422650933b0beea2303d9 MD5 · raw file
- # 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 = 'Menus.h' # The Apple header file
- MODNAME = '_Menu' # The name of the module
- OBJECTNAME = 'Menu' # The basic name of the objects used here
- # The following is *usually* unchanged but may still require tuning
- MODPREFIX = 'Menu' # The prefix for module-wide routines
- OBJECTTYPE = OBJECTNAME + 'Handle' # The C type used to represent them
- OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
- INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
- EXTRAFILE = string.lower(MODPREFIX) + 'edit.py' # A similar file but hand-made
- OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
- from macsupport import *
- # Create the type objects
- MenuHandle = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
- MenuRef = MenuHandle
- OptMenuRef = OpaqueByValueType(OBJECTTYPE, "Opt" + OBJECTPREFIX)
- Handle = OpaqueByValueType("Handle", "ResObj")
- MenuBarHandle = OpaqueByValueType("MenuBarHandle", "ResObj")
- MenuID = Type("MenuID", "h")
- MenuItemIndex = Type("MenuItemIndex", "h")
- MenuItemID = Type("MenuItemID", "l")
- MenuCommand = Type("MenuCommand", "l")
- MenuAttributes = Type("MenuAttributes", "l")
- MenuItemAttributes = Type("MenuItemAttributes", "l")
- unsigned_char = Type('unsigned char', 'b')
- FMFontFamily = Type("FMFontFamily", "h")
- FMFontStyle = Type("FMFontStyle", "h")
- UniChar = Type("UniChar", "h")
- includestuff = includestuff + """
- #include <Carbon/Carbon.h>
- #ifdef USE_TOOLBOX_OBJECT_GLUE
- extern PyObject *_MenuObj_New(MenuHandle);
- extern int _MenuObj_Convert(PyObject *, MenuHandle *);
- #define MenuObj_New _MenuObj_New
- #define MenuObj_Convert _MenuObj_Convert
- #endif
- #define as_Menu(h) ((MenuHandle)h)
- #define as_Resource(h) ((Handle)h)
- /* Alternative version of MenuObj_New, which returns None for NULL argument */
- PyObject *OptMenuObj_New(MenuRef itself)
- {
- if (itself == NULL) {
- Py_INCREF(Py_None);
- return Py_None;
- }
- return MenuObj_New(itself);
- }
- /* Alternative version of MenuObj_Convert, which returns NULL for a None argument */
- int OptMenuObj_Convert(PyObject *v, MenuRef *p_itself)
- {
- if ( v == Py_None ) {
- *p_itself = NULL;
- return 1;
- }
- return MenuObj_Convert(v, p_itself);
- }
- """
- initstuff = initstuff + """
- PyMac_INIT_TOOLBOX_OBJECT_NEW(MenuHandle, MenuObj_New);
- PyMac_INIT_TOOLBOX_OBJECT_CONVERT(MenuHandle, MenuObj_Convert);
- """
- class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
- pass
- # Create the generator groups and link them
- module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
- object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
- module.addobject(object)
- # Create the generator classes used to populate the lists
- Function = OSErrWeakLinkFunctionGenerator
- Method = OSErrWeakLinkMethodGenerator
- # Create and populate the lists
- functions = []
- methods = []
- execfile(INPUTFILE)
- execfile(EXTRAFILE)
- # add the populated lists to the generator groups
- for f in functions: module.add(f)
- for f in methods: object.add(f)
- # generate output (open the output file as late as possible)
- SetOutputFileName(OUTPUTFILE)
- module.generate()