# 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 = 'Win' # 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") DragReference = OpaqueByValueType("DragReference", "DragObj") RgnHandle = OpaqueByValueType("RgnHandle", "ResObj") PicHandle = OpaqueByValueType("PicHandle", "ResObj") WCTabHandle = OpaqueByValueType("WCTabHandle", "ResObj") AuxWinHandle = OpaqueByValueType("AuxWinHandle", "ResObj") PixPatHandle = OpaqueByValueType("PixPatHandle", "ResObj") AliasHandle = OpaqueByValueType("AliasHandle", "ResObj") IconRef = OpaqueByValueType("IconRef", "ResObj") WindowRegionCode = Type("WindowRegionCode", "H") WindowClass = Type("WindowClass", "l") WindowAttributes = Type("WindowAttributes", "l") WindowPositionMethod = Type("WindowPositionMethod", "l") WindowTransitionEffect = Type("WindowTransitionEffect", "l") WindowTransitionAction = Type("WindowTransitionAction", "l") RGBColor = OpaqueType("RGBColor", "QdRGB") RGBColor_ptr = RGBColor ScrollWindowOptions = Type("ScrollWindowOptions", "l") WindowPartCode = Type("WindowPartCode", "h") WindowDefPartCode = Type("WindowDefPartCode", "h") WindowModality = Type("WindowModality", "l") GDHandle = OpaqueByValueType("GDHandle", "ResObj") WindowConstrainOptions = Type("WindowConstrainOptions", "l") PropertyCreator = OSTypeType("PropertyCreator") PropertyTag = OSTypeType("PropertyTag") includestuff = includestuff + """ #include #ifdef USE_TOOLBOX_OBJECT_GLUE extern PyObject *_WinObj_New(WindowRef); extern PyObject *_WinObj_WhichWindow(WindowRef); extern int _WinObj_Convert(PyObject *, WindowRef *); #define WinObj_New _WinObj_New #define WinObj_WhichWindow _WinObj_WhichWindow #define WinObj_Convert _WinObj_Convert #endif /* Classic calls that we emulate in carbon mode */ #define GetWindowUpdateRgn(win, rgn) GetWindowRegion((win), kWindowUpdateRgn, (rgn)) #define GetWindowStructureRgn(win, rgn) GetWindowRegion((win), kWindowStructureRgn, (rgn)) #define GetWindowContentRgn(win, rgn) GetWindowRegion((win), kWindowContentRgn, (rgn)) /* Function to dispose a window, with a "normal" calling sequence */ static void PyMac_AutoDisposeWindow(WindowPtr w) { DisposeWindow(w); } """ finalstuff = finalstuff + """ /* Return the object corresponding to the window, or NULL */ PyObject * WinObj_WhichWindow(WindowPtr w) { PyObject *it; if (w == NULL) { it = Py_None; Py_INCREF(it); } else { it = (PyObject *) GetWRefCon(w); if (it == NULL || !IsPointerValid((Ptr)it) || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) { it = WinObj_New(w); ((WindowObject *)it)->ob_freeit = NULL; } else { Py_INCREF(it); } } return it; } """ initstuff = initstuff + """ PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_New); PyMac_INIT_TOOLBOX_OBJECT_NEW(WindowPtr, WinObj_WhichWindow); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(WindowPtr, WinObj_Convert); """ class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition): def outputCheckNewArg(self): Output("if (itself == NULL) return PyMac_Error(resNotFound);") Output("/* XXXX Or should we use WhichWindow code here? */") def outputStructMembers(self): GlobalObjectDefinition.outputStructMembers(self) Output("void (*ob_freeit)(%s ptr);", self.itselftype) def outputInitStructMembers(self): GlobalObjectDefinition.outputInitStructMembers(self) Output("it->ob_freeit = NULL;") Output("if (GetWRefCon(itself) == 0)") OutLbrace() Output("SetWRefCon(itself, (long)it);") Output("it->ob_freeit = PyMac_AutoDisposeWindow;") OutRbrace() def outputCheckConvertArg(self): Out(""" if (v == Py_None) { *p_itself = NULL; return 1; } if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; } """) OutLbrace() Output("DialogRef dlg;") OutLbrace("if (DlgObj_Convert(v, &dlg) && dlg)") Output("*p_itself = GetDialogWindow(dlg);") Output("return 1;") OutRbrace() Output("PyErr_Clear();") OutRbrace() def outputCleanupStructMembers(self): Output("if (self->ob_freeit && self->ob_itself)") OutLbrace() Output("SetWRefCon(self->ob_itself, 0);") Output("self->ob_freeit(self->ob_itself);") OutRbrace() Output("self->ob_itself = NULL;") Output("self->ob_freeit = NULL;") def outputCompare(self): Output() Output("static int %s_compare(%s *self, %s *other)", self.prefix, self.objecttype, self.objecttype) OutLbrace() Output("if ( self->ob_itself > other->ob_itself ) return 1;") Output("if ( self->ob_itself < other->ob_itself ) return -1;") Output("return 0;") OutRbrace() def outputHash(self): Output() Output("static int %s_hash(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("return (int)self->ob_itself;") OutRbrace() def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() ## 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 = OSErrWeakLinkFunctionGenerator Method = OSErrWeakLinkMethodGenerator # Create and populate the lists functions = [] methods = [] exec(open(INPUTFILE).read()) # 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; _res = WinObj_WhichWindow((WindowPtr)ptr); return _res; """ 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 exec can go) exec(open(EDITFILE).read()) # 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()