# 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 = 'TextEdit.h' # The Apple header file MODNAME = '_TE' # The name of the module OBJECTNAME = 'TE' # The basic name of the objects used here KIND = 'Handle' # Usually 'Ptr' or 'Handle' # The following is *usually* unchanged but may still require tuning MODPREFIX = 'TE' # The prefix for module-wide routines OBJECTTYPE = "TEHandle" # 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 TEHandle = OpaqueByValueType("TEHandle", "TEObj") CharsHandle = OpaqueByValueType("CharsHandle", "ResObj") Handle = OpaqueByValueType("Handle", "ResObj") StScrpHandle = OpaqueByValueType("StScrpHandle", "ResObj") TEStyleHandle = OpaqueByValueType("TEStyleHandle", "ResObj") RgnHandle = OpaqueByValueType("RgnHandle", "ResObj") TextStyle = OpaqueType("TextStyle", "TextStyle") TextStyle_ptr = TextStyle includestuff = includestuff + """ #include <Carbon/Carbon.h> #ifdef USE_TOOLBOX_OBJECT_GLUE extern PyObject *_TEObj_New(TEHandle); extern int _TEObj_Convert(PyObject *, TEHandle *); #define TEObj_New _TEObj_New #define TEObj_Convert _TEObj_Convert #endif #define as_TE(h) ((TEHandle)h) #define as_Resource(teh) ((Handle)teh) /* ** Parse/generate TextStyle records */ static PyObject * TextStyle_New(TextStylePtr itself) { return Py_BuildValue("lllO&", (long)itself->tsFont, (long)itself->tsFace, (long)itself->tsSize, QdRGB_New, &itself->tsColor); } static int TextStyle_Convert(PyObject *v, TextStylePtr p_itself) { long font, face, size; if( !PyArg_ParseTuple(v, "lllO&", &font, &face, &size, QdRGB_Convert, &p_itself->tsColor) ) return 0; p_itself->tsFont = (short)font; p_itself->tsFace = (Style)face; p_itself->tsSize = (short)size; return 1; } """ initstuff = initstuff + """ PyMac_INIT_TOOLBOX_OBJECT_NEW(TEHandle, TEObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(TEHandle, TEObj_Convert); """ class TEMethodGenerator(OSErrWeakLinkMethodGenerator): """Similar to MethodGenerator, but has self as last argument""" def parseArgumentList(self, args): args, a0 = args[:-1], args[-1] t0, n0, m0 = a0 if m0 != InMode: raise ValueError, "method's 'self' must be 'InMode'" self.itself = Variable(t0, "_self->ob_itself", SelfMode) FunctionGenerator.parseArgumentList(self, args) self.argumentList.append(self.itself) class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition): # XXXX Could be subtype of Resource # Attributes that can be set. getsetlist = [ ( 'destRect', 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->destRect);', None, 'Destination rectangle' ), ( 'viewRect', 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->viewRect);', None, 'Viewing rectangle' ), ( 'selRect', 'return Py_BuildValue("O&", PyMac_BuildRect, &(*self->ob_itself)->selRect);', None, 'Selection rectangle' ), ( 'lineHeight', 'return Py_BuildValue("h", (*self->ob_itself)->lineHeight);', None, 'Height of a line' ), ( 'fontAscent', 'return Py_BuildValue("h", (*self->ob_itself)->fontAscent);', None, 'Ascent of a line' ), ( "selPoint", 'return Py_BuildValue("O&", PyMac_BuildPoint, (*self->ob_itself)->selPoint);', None, 'Selection Point' ), ( 'selStart', 'return Py_BuildValue("h", (*self->ob_itself)->selStart);', None, 'Start of selection' ), ( 'selEnd', 'return Py_BuildValue("h", (*self->ob_itself)->selEnd);', None, 'End of selection' ), ( 'active', 'return Py_BuildValue("h", (*self->ob_itself)->active);', None, 'TBD' ), ( 'just', 'return Py_BuildValue("h", (*self->ob_itself)->just);', None, 'Justification' ), ( 'teLength', 'return Py_BuildValue("h", (*self->ob_itself)->teLength);', None, 'TBD' ), ( 'txFont', 'return Py_BuildValue("h", (*self->ob_itself)->txFont);', None, 'Current font' ), ( 'txFace', 'return Py_BuildValue("h", (*self->ob_itself)->txFace);', None, 'Current font variant' ), ( 'txMode', 'return Py_BuildValue("h", (*self->ob_itself)->txMode);', None, 'Current text-drawing mode' ), ( 'txSize', 'return Py_BuildValue("h", (*self->ob_itself)->txSize);', None, 'Current font size' ), ( 'nLines', 'return Py_BuildValue("h", (*self->ob_itself)->nLines);', None, 'TBD' )] def outputCheckNewArg(self): Output("""if (itself == NULL) { PyErr_SetString(TE_Error,"Cannot create null TE"); return NULL; }""") def outputFreeIt(self, itselfname): Output("TEDispose(%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 = TEMethodGenerator # Create and populate the lists functions = [] methods = [] execfile(INPUTFILE) # Converter from/to handle f = Function(TEHandle, 'as_TE', (Handle, 'h', InMode)) functions.append(f) f = Method(Handle, 'as_Resource', (TEHandle, 'teh', InMode)) methods.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) # generate output (open the output file as late as possible) SetOutputFileName(OUTPUTFILE) module.generate()