| # 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 = 'Controls.h' # The Apple header file |
| MODNAME = 'Ctl' # The name of the module |
| OBJECTNAME = 'Control' # 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 + '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 |
| OUTPUTFILE = MODNAME + "module.c" # The file generated by this program |
| |
| from macsupport import * |
| |
| # Create the type objects |
| |
| ControlHandle = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX) |
| ControlRef = ControlHandle |
| ExistingControlHandle = OpaqueByValueType(OBJECTTYPE, "CtlObj_WhichControl", "BUG") |
| |
| RgnHandle = OpaqueByValueType("RgnHandle", "ResObj") |
| CCTabHandle = OpaqueByValueType("CCTabHandle", "ResObj") |
| AuxCtlHandle = OpaqueByValueType("AuxCtlHandle", "ResObj") |
| ControlPartCode = Type("ControlPartCode", "h") |
| DragConstraint = Type("DragConstraint", "h") |
| ControlVariant = Type("ControlVariant", "h") |
| IconTransformType = Type("IconTransformType", "h") |
| ControlButtonGraphicAlignment = Type("ControlButtonGraphicAlignment", "h") |
| ControlButtonTextAlignment = Type("ControlButtonTextAlignment", "h") |
| ControlButtonTextPlacement = Type("ControlButtonTextPlacement", "h") |
| ControlContentType = Type("ControlContentType", "h") |
| ControlFocusPart = Type("ControlFocusPart", "h") |
| |
| ControlFontStyleRec = OpaqueType('ControlFontStyleRec', 'ControlFontStyle') |
| ControlFontStyleRec_ptr = ControlFontStyleRec |
| |
| includestuff = includestuff + """ |
| #include <%s>""" % MACHEADERFILE + """ |
| |
| #define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */ |
| |
| extern PyObject *CtlObj_WhichControl(ControlHandle); /* Forward */ |
| extern PyObject *QdRGB_New(RGBColorPtr); |
| extern QdRGB_Convert(PyObject *, RGBColorPtr); |
| |
| #ifdef THINK_C |
| #define ControlActionUPP ProcPtr |
| #endif |
| |
| /* |
| ** Parse/generate ControlFontStyleRec records |
| */ |
| #if 0 /* Not needed */ |
| PyObject *ControlFontStyle_New(itself) |
| ControlFontStyleRec *itself; |
| { |
| |
| return Py_BuildValue("hhhhhhO&O&", itself->flags, itself->font, |
| itself->size, itself->style, itself->mode, itself->just, |
| QdRGB_New, &itself->foreColor, QdRGB_New, &itself->backColor); |
| } |
| #endif |
| |
| ControlFontStyle_Convert(v, itself) |
| PyObject *v; |
| ControlFontStyleRec *itself; |
| { |
| return PyArg_ParseTuple(v, "hhhhhhO&O&", &itself->flags, |
| &itself->font, &itself->size, &itself->style, &itself->mode, |
| &itself->just, QdRGB_Convert, &itself->foreColor, |
| QdRGB_Convert, &itself->backColor); |
| } |
| |
| /* TrackControl callback support */ |
| static PyObject *tracker; |
| static ControlActionUPP mytracker_upp; |
| |
| extern int settrackfunc(PyObject *); /* forward */ |
| extern void clrtrackfunc(void); /* forward */ |
| """ |
| |
| finalstuff = finalstuff + """ |
| PyObject * |
| CtlObj_WhichControl(ControlHandle c) |
| { |
| PyObject *it; |
| |
| /* XXX What if we find a control belonging to some other package? */ |
| if (c == NULL) |
| it = NULL; |
| else |
| it = (PyObject *) GetControlReference(c); |
| if (it == NULL || ((ControlObject *)it)->ob_itself != c) |
| it = Py_None; |
| Py_INCREF(it); |
| return it; |
| } |
| |
| static int |
| settrackfunc(obj) |
| PyObject *obj; |
| { |
| if (tracker) { |
| PyErr_SetString(Ctl_Error, "Tracker function in use"); |
| return 0; |
| } |
| tracker = obj; |
| Py_INCREF(tracker); |
| } |
| |
| static void |
| clrtrackfunc() |
| { |
| Py_XDECREF(tracker); |
| tracker = 0; |
| } |
| |
| static pascal void |
| mytracker(ctl, part) |
| ControlHandle ctl; |
| short part; |
| { |
| PyObject *args, *rv=0; |
| |
| args = Py_BuildValue("(O&i)", CtlObj_WhichControl, ctl, (int)part); |
| if (args && tracker) { |
| rv = PyEval_CallObject(tracker, args); |
| Py_DECREF(args); |
| } |
| if (rv) |
| Py_DECREF(rv); |
| else |
| PySys_WriteStderr("TrackControl: exception in tracker function\\n"); |
| } |
| """ |
| |
| initstuff = initstuff + """ |
| mytracker_upp = NewControlActionProc(mytracker); |
| """ |
| |
| class MyObjectDefinition(GlobalObjectDefinition): |
| def outputCheckNewArg(self): |
| Output("if (itself == NULL) return PyMac_Error(resNotFound);") |
| def outputInitStructMembers(self): |
| GlobalObjectDefinition.outputInitStructMembers(self) |
| Output("SetControlReference(itself, (long)it);") |
| def outputCleanupStructMembers(self): |
| Output("if (self->ob_itself) SetControlReference(self->ob_itself, (long)0); /* Make it forget about us */") |
| |
| # 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) |
| execfile('ctledit.py') |
| |
| # add the populated lists to the generator groups |
| for f in functions: module.add(f) |
| for f in methods: object.add(f) |
| |
| # Manual generator for TrackControl, due to callback ideosyncracies |
| trackcontrol_body = """ |
| ControlPartCode _rv; |
| Point startPoint; |
| ControlActionUPP upp = 0; |
| PyObject *callback = 0; |
| |
| if (!PyArg_ParseTuple(_args, "O&|O", |
| PyMac_GetPoint, &startPoint, &callback)) |
| return NULL; |
| if (callback && callback != Py_None) { |
| if (PyInt_Check(callback) && PyInt_AS_LONG(callback) == -1) |
| upp = (ControlActionUPP)-1; |
| else { |
| settrackfunc(callback); |
| upp = mytracker_upp; |
| } |
| } |
| _rv = TrackControl(_self->ob_itself, |
| startPoint, |
| upp); |
| clrtrackfunc(); |
| _res = Py_BuildValue("h", |
| _rv); |
| return _res; |
| """ |
| |
| f = ManualGenerator("TrackControl", trackcontrol_body); |
| #f.docstring = "(Point startPoint [,trackercallback]) -> (ControlPartCode _rv)" |
| object.add(f) |
| |
| # And manual generators to get/set popup menu information |
| getpopupdata_body = """ |
| PopupPrivateDataHandle hdl; |
| |
| if ( (*_self->ob_itself)->contrlData == NULL ) { |
| PyErr_SetString(Ctl_Error, "No contrlData handle in control"); |
| return 0; |
| } |
| hdl = (PopupPrivateDataHandle)(*_self->ob_itself)->contrlData; |
| HLock((Handle)hdl); |
| _res = Py_BuildValue("O&i", MenuObj_New, (*hdl)->mHandle, (int)(*hdl)->mID); |
| HUnlock((Handle)hdl); |
| return _res; |
| """ |
| f = ManualGenerator("GetPopupData", getpopupdata_body) |
| object.add(f) |
| |
| setpopupdata_body = """ |
| PopupPrivateDataHandle hdl; |
| MenuHandle mHandle; |
| short mID; |
| |
| if (!PyArg_ParseTuple(_args, "O&h", MenuObj_Convert, &mHandle, &mID) ) |
| return 0; |
| if ( (*_self->ob_itself)->contrlData == NULL ) { |
| PyErr_SetString(Ctl_Error, "No contrlData handle in control"); |
| return 0; |
| } |
| hdl = (PopupPrivateDataHandle)(*_self->ob_itself)->contrlData; |
| (*hdl)->mHandle = mHandle; |
| (*hdl)->mID = mID; |
| Py_INCREF(Py_None); |
| return Py_None; |
| """ |
| f = ManualGenerator("SetPopupData", setpopupdata_body) |
| object.add(f) |
| |
| |
| # generate output (open the output file as late as possible) |
| SetOutputFileName(OUTPUTFILE) |
| module.generate() |