| # 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 = 'Events.h' # The Apple header file |
| MODNAME = '_Evt' # The name of the module |
| OBJECTNAME = 'Event' # The basic name of the objects used here |
| KIND = 'Record' # Usually 'Ptr' or 'Handle' |
| |
| # The following is *usually* unchanged but may still require tuning |
| MODPREFIX = 'Evt' # The prefix for module-wide routines |
| OBJECTTYPE = OBJECTNAME + KIND # 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 |
| OUTPUTFILE = MODNAME + "module.c" # The file generated by this program |
| |
| from macsupport import * |
| |
| # Create the type objects |
| |
| #WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX) |
| |
| RgnHandle = FakeType("(RgnHandle)0") |
| # XXXX Should be next, but this will break a lot of code... |
| # RgnHandle = OpaqueByValueType("RgnHandle", "OptResObj") |
| |
| KeyMap = ArrayOutputBufferType("KeyMap") |
| ##MacOSEventKind = Type("MacOSEventKind", "h") # Old-style |
| ##MacOSEventMask = Type("MacOSEventMask", "h") # Old-style |
| EventMask = Type("EventMask", "H") |
| EventKind = Type("EventKind", "H") |
| |
| includestuff = includestuff + """ |
| #ifdef WITHOUT_FRAMEWORKS |
| #include <Events.h> |
| #else |
| #include <Carbon/Carbon.h> |
| #endif |
| |
| """ |
| |
| class MyObjectDefinition(GlobalObjectDefinition): |
| def outputCheckNewArg(self): |
| Output("if (itself == NULL) return PyMac_Error(resNotFound);") |
| def outputCheckConvertArg(self): |
| OutLbrace("if (DlgObj_Check(v))") |
| Output("*p_itself = ((WindowObject *)v)->ob_itself;") |
| Output("return 1;") |
| OutRbrace() |
| Out(""" |
| if (v == Py_None) { *p_itself = NULL; return 1; } |
| if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; } |
| """) |
| |
| # From here on it's basically all boiler plate... |
| |
| # 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) |
| |
| # Move TickCount here, for convenience |
| f = Function(UInt32, 'TickCount', |
| ) |
| functions.append(f) |
| |
| # 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) |
| ##for f in methods: object.add(f) |
| |
| WaitNextEvent_body = """ |
| Boolean _rv; |
| EventMask eventMask; |
| EventRecord theEvent; |
| UInt32 sleep; |
| Handle mouseregion = (Handle)0; |
| |
| if (!PyArg_ParseTuple(_args, "Hl|O&", |
| &eventMask, |
| &sleep, |
| OptResObj_Convert, &mouseregion)) |
| return NULL; |
| _rv = WaitNextEvent(eventMask, |
| &theEvent, |
| sleep, |
| (RgnHandle)mouseregion); |
| _res = Py_BuildValue("bO&", |
| _rv, |
| PyMac_BuildEventRecord, &theEvent); |
| return _res; |
| """ |
| f = ManualGenerator("WaitNextEvent", WaitNextEvent_body); |
| f.docstring = lambda: "(EventMask eventMask, UInt32 sleep [,RegionHandle]) -> (Boolean _rv, EventRecord theEvent)" |
| module.add(f) |
| |
| |
| # generate output (open the output file as late as possible) |
| SetOutputFileName(OUTPUTFILE) |
| module.generate() |
| |