| # 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 = 'Windows.h' # The Apple header file |
| MODNAME = 'Win' # The name of the module |
| OBJECTNAME = 'Window' # The basic name of the objects used here |
| |
| # The following is *usually* unchanged but may still require tuning |
| MODPREFIX = MODNAME # The prefix for module-wide routines |
| OBJECTTYPE = OBJECTNAME + 'Ptr' # 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 |
| EDITFILE = string.lower(MODPREFIX) + 'edit.py' # The manual definitions |
| OUTPUTFILE = MODNAME + "module.c" # The file generated by this program |
| |
| from macsupport import * |
| |
| # Create the type objects |
| |
| WindowPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX) |
| WindowRef = WindowPtr |
| WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX) |
| WindowPeek.passInput = lambda name: "(WindowPeek)(%s)" % name |
| CGrafPtr = OpaqueByValueType("CGrafPtr", "GrafObj") |
| GrafPtr = OpaqueByValueType("GrafPtr", "GrafObj") |
| |
| RgnHandle = OpaqueByValueType("RgnHandle", "ResObj") |
| PicHandle = OpaqueByValueType("PicHandle", "ResObj") |
| WCTabHandle = OpaqueByValueType("WCTabHandle", "ResObj") |
| AuxWinHandle = OpaqueByValueType("AuxWinHandle", "ResObj") |
| PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj") |
| |
| WindowRegionCode = Type("WindowRegionCode", "h") |
| |
| includestuff = includestuff + """ |
| #include <%s>""" % MACHEADERFILE + """ |
| |
| #define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */ |
| |
| #ifdef HAVE_UNIVERSAL_HEADERS |
| #define WindowPeek WindowPtr |
| #endif |
| """ |
| |
| finalstuff = finalstuff + """ |
| /* Return the object corresponding to the window, or NULL */ |
| |
| PyObject * |
| WinObj_WhichWindow(w) |
| WindowPtr w; |
| { |
| PyObject *it; |
| |
| /* XXX What if we find a stdwin window or a window belonging |
| to some other package? */ |
| if (w == NULL) |
| it = NULL; |
| else |
| it = (PyObject *) GetWRefCon(w); |
| if (it == NULL || ((WindowObject *)it)->ob_itself != w) |
| it = Py_None; |
| Py_INCREF(it); |
| return it; |
| } |
| """ |
| |
| class MyObjectDefinition(GlobalObjectDefinition): |
| def outputCheckNewArg(self): |
| Output("if (itself == NULL) return PyMac_Error(resNotFound);") |
| def outputInitStructMembers(self): |
| GlobalObjectDefinition.outputInitStructMembers(self) |
| Output("SetWRefCon(itself, (long)it);") |
| 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; } |
| """) |
| def outputFreeIt(self, itselfname): |
| Output("DisposeWindow(%s);", itselfname) |
| # 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 = OSErrFunctionGenerator |
| Method = OSErrMethodGenerator |
| |
| # Create and populate the lists |
| functions = [] |
| methods = [] |
| execfile(INPUTFILE) |
| |
| # Add manual routines for converting integer WindowPtr's (as returned by |
| # various event routines) and Dialog objects to a WindowObject. |
| whichwin_body = """ |
| long ptr; |
| |
| if ( !PyArg_ParseTuple(_args, "i", &ptr) ) |
| return NULL; |
| return WinObj_WhichWindow((WindowPtr)ptr); |
| """ |
| |
| f = ManualGenerator("WhichWindow", whichwin_body) |
| f.docstring = lambda : "Resolve an integer WindowPtr address to a Window object" |
| |
| functions.append(f) |
| |
| # And add the routines that access the internal bits of a window struct. They |
| # are currently #defined in Windows.h, they will be real routines in Copland |
| # (at which time this execfile can go) |
| execfile(EDITFILE) |
| |
| # 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) |
| |
| |
| |
| # generate output (open the output file as late as possible) |
| SetOutputFileName(OUTPUTFILE) |
| module.generate() |