mirror of https://github.com/python/cpython
Added support for callbacks (for embedded objects)
This commit is contained in:
parent
316a430098
commit
756522f426
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@ -43,6 +43,7 @@ extern int BMObj_Convert(PyObject *, BitMapPtr *);
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extern PyObject *WinObj_WhichWindow(WindowPtr);
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#include <WASTE.h>
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#include <WEObjectHandlers.h>
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/* Exported by Qdmodule.c: */
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extern PyObject *QdRGB_New(RGBColor *);
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@ -50,6 +51,7 @@ extern int QdRGB_Convert(PyObject *, RGBColor *);
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/* Forward declaration */
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staticforward PyObject *WEOObj_New(WEObjectReference);
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staticforward PyObject *ExistingwasteObj_New(WEReference);
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/*
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** Parse/generate TextStyle records
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@ -115,6 +117,103 @@ LongPt_New(LongPt *p)
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return Py_BuildValue("(ll)", p->h, p->v);
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}
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/* Stuff for the callbacks: */
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static PyObject *callbackdict;
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UniversalProcPtr upp_new_handler, upp_dispose_handler, upp_draw_handler, upp_click_handler;
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static OSErr
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any_handler(WESelector what, WEObjectReference who, PyObject *args, PyObject **rv)
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{
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FlavorType tp;
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PyObject *key, *func;
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if ( args == NULL ) return errAECorruptData;
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tp = WEGetObjectType(who);
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if( (key=Py_BuildValue("O&O&", PyMac_BuildOSType, tp, PyMac_BuildOSType, what)) == NULL)
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return errAECorruptData;
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if( (func = PyDict_GetItem(callbackdict, key)) == NULL ) {
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Py_DECREF(key);
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return errAEHandlerNotFound;
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}
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Py_INCREF(func);
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*rv = PyEval_CallObject(func, args);
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Py_DECREF(func);
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Py_DECREF(key);
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if ( *rv == NULL ) {
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fprintf(stderr, "--Exception in callback: ");
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PyErr_Print();
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return errAEReplyNotArrived;
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}
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return 0;
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}
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static pascal OSErr
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my_new_handler(Point *objectSize, WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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OSErr err;
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args=Py_BuildValue("(O&)", WEOObj_New, objref);
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err = any_handler(weNewHandler, objref, args, &rv);
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if (!err) {
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if (!PyMac_GetPoint(rv, objectSize) )
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err = errAECoercionFail;
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}
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return err;
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}
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static pascal OSErr
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my_dispose_handler(WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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OSErr err;
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args=Py_BuildValue("(O&)", WEOObj_New, objref);
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err = any_handler(weDisposeHandler, objref, args, &rv);
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return err;
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}
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static pascal OSErr
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my_draw_handler(Rect *destRect, WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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OSErr err;
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args=Py_BuildValue("O&O&", PyMac_BuildRect, destRect, WEOObj_New, objref);
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err = any_handler(weDrawHandler, objref, args, &rv);
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return err;
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}
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static pascal Boolean
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my_click_handler(Point hitPt, EventModifiers modifiers,
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unsigned long clickTime, WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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int retvalue;
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OSErr err;
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args=Py_BuildValue("O&llO&", PyMac_BuildPoint, hitPt,
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(long)modifiers, (long)clickTime, WEOObj_New, objref);
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err = any_handler(weClickHandler, objref, args, &rv);
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if (!err)
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retvalue = PyInt_AsLong(rv);
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else
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retvalue = 0;
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return retvalue;
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}
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static PyObject *waste_Error;
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/* ------------------------ Object type WEO ------------------------- */
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@ -203,6 +302,20 @@ static PyObject *WEOObj_WEGetObjectSize(_self, _args)
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return _res;
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}
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static PyObject *WEOObj_WEGetObjectOwner(_self, _args)
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WEOObject *_self;
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PyObject *_args;
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{
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PyObject *_res = NULL;
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WEReference _rv;
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if (!PyArg_ParseTuple(_args, ""))
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return NULL;
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_rv = WEGetObjectOwner(_self->ob_itself);
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_res = Py_BuildValue("O&",
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ExistingwasteObj_New, _rv);
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return _res;
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}
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static PyObject *WEOObj_WEGetObjectRefCon(_self, _args)
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WEOObject *_self;
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PyObject *_args;
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@ -240,6 +353,8 @@ static PyMethodDef WEOObj_methods[] = {
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"() -> (Handle _rv)"},
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{"WEGetObjectSize", (PyCFunction)WEOObj_WEGetObjectSize, 1,
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"() -> (Point _rv)"},
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{"WEGetObjectOwner", (PyCFunction)WEOObj_WEGetObjectOwner, 1,
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"() -> (WEReference _rv)"},
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{"WEGetObjectRefCon", (PyCFunction)WEOObj_WEGetObjectRefCon, 1,
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"() -> (long _rv)"},
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{"WESetObjectRefCon", (PyCFunction)WEOObj_WESetObjectRefCon, 1,
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@ -296,6 +411,7 @@ PyObject *wasteObj_New(itself)
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it = PyObject_NEW(wasteObject, &waste_Type);
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if (it == NULL) return NULL;
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it->ob_itself = itself;
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WESetInfo(weRefCon, (void *)&it, itself);
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return (PyObject *)it;
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}
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wasteObj_Convert(v, p_itself)
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@ -1645,6 +1761,91 @@ static PyObject *waste_WELongPointInLongRect(_self, _args)
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return _res;
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}
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static PyObject *waste_STDObjectHandlers(_self, _args)
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PyObject *_self;
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PyObject *_args;
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{
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PyObject *_res = NULL;
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OSErr err;
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// install the sample object handlers for pictures and sounds
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#define kTypePicture 'PICT'
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#define kTypeSound 'snd '
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if ( !PyArg_ParseTuple(_args, "") ) return NULL;
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if ((err = WEInstallObjectHandler(kTypePicture, weNewHandler,
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(UniversalProcPtr) NewWENewObjectProc(HandleNewPicture), NULL)) != noErr)
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goto cleanup;
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if ((err = WEInstallObjectHandler(kTypePicture, weDisposeHandler,
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(UniversalProcPtr) NewWEDisposeObjectProc(HandleDisposePicture), NULL)) != noErr)
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goto cleanup;
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if ((err = WEInstallObjectHandler(kTypePicture, weDrawHandler,
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(UniversalProcPtr) NewWEDrawObjectProc(HandleDrawPicture), NULL)) != noErr)
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goto cleanup;
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if ((err = WEInstallObjectHandler(kTypeSound, weNewHandler,
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(UniversalProcPtr) NewWENewObjectProc(HandleNewSound), NULL)) != noErr)
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goto cleanup;
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if ((err = WEInstallObjectHandler(kTypeSound, weDrawHandler,
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(UniversalProcPtr) NewWEDrawObjectProc(HandleDrawSound), NULL)) != noErr)
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goto cleanup;
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if ((err = WEInstallObjectHandler(kTypeSound, weClickHandler,
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(UniversalProcPtr) NewWEClickObjectProc(HandleClickSound), NULL)) != noErr)
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goto cleanup;
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Py_INCREF(Py_None);
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return Py_None;
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cleanup:
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return PyMac_Error(err);
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}
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static PyObject *waste_WEInstallObjectHandler(_self, _args)
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PyObject *_self;
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PyObject *_args;
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{
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PyObject *_res = NULL;
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OSErr err;
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FlavorType objectType;
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WESelector selector;
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PyObject *py_handler;
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UniversalProcPtr handler;
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WEReference we = NULL;
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PyObject *key;
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if ( !PyArg_ParseTuple(_args, "O&O&O|O&",
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PyMac_GetOSType, &objectType,
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PyMac_GetOSType, &selector,
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&py_handler,
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ExistingwasteObj_New, &we) ) return NULL;
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if ( selector == weNewHandler ) handler = upp_new_handler;
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else if ( selector == weDisposeHandler ) handler = upp_dispose_handler;
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else if ( selector == weDrawHandler ) handler = upp_draw_handler;
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else if ( selector == weClickHandler ) handler = upp_click_handler;
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else return PyMac_Error(weUndefinedSelectorErr);
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if ((key = Py_BuildValue("O&O&",
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PyMac_BuildOSType, objectType,
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PyMac_BuildOSType, selector)) == NULL )
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return NULL;
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PyDict_SetItem(callbackdict, key, py_handler);
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err = WEInstallObjectHandler(objectType, selector, handler, we);
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if ( err ) return PyMac_Error(err);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyMethodDef waste_methods[] = {
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{"WENew", (PyCFunction)waste_WENew, 1,
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"(LongRect destRect, LongRect viewRect, unsigned long flags) -> (WEReference we)"},
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"(long hOffset, long vOffset) -> (LongRect lr)"},
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{"WELongPointInLongRect", (PyCFunction)waste_WELongPointInLongRect, 1,
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"(LongPt lp, LongRect lr) -> (Boolean _rv)"},
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{"STDObjectHandlers", (PyCFunction)waste_STDObjectHandlers, 1,
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NULL},
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{"WEInstallObjectHandler", (PyCFunction)waste_WEInstallObjectHandler, 1,
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NULL},
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{NULL, NULL, 0}
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};
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/* Return the object corresponding to the window, or NULL */
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PyObject *
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ExistingwasteObj_New(w)
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WEReference w;
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{
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PyObject *it = NULL;
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if (w == NULL)
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it = NULL;
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else
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WEGetInfo(weRefCon, (void *)&it, w);
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if (it == NULL || ((wasteObject *)it)->ob_itself != w)
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it = Py_None;
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Py_INCREF(it);
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return it;
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}
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void initwaste()
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{
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@ -1686,6 +1909,16 @@ void initwaste()
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if (waste_Error == NULL ||
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PyDict_SetItemString(d, "Error", waste_Error) != 0)
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Py_FatalError("can't initialize waste.Error");
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callbackdict = PyDict_New();
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if (callbackdict == NULL || PyDict_SetItemString(d, "callbacks", callbackdict) != 0)
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Py_FatalError("can't initialize Waste.callbackdict");
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upp_new_handler = NewWENewObjectProc(my_new_handler);
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upp_dispose_handler = NewWENewObjectProc(my_dispose_handler);
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upp_draw_handler = NewWENewObjectProc(my_draw_handler);
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upp_click_handler = NewWENewObjectProc(my_click_handler);
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}
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/* ======================== End module waste ======================== */
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@ -52,7 +52,6 @@ class MyScanner(Scanner):
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"WEDispose",
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"WESetInfo", # Argument type unknown...
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"WEGetInfo",
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"WEGetObjectOwner", # Returns ref to existing WE
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]
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def makeblacklisttypes(self):
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@ -78,7 +77,12 @@ class MyScanner(Scanner):
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# WEInsert
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([('StScrpHandle', 'hStyles', 'InMode'), ('WESoupHandle', 'hSoup', 'InMode')],
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[('OptStScrpHandle', 'hStyles', 'InMode'), ('OptSoupHandle', 'hSoup', 'InMode')])
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[('OptStScrpHandle', 'hStyles', 'InMode'), ('OptSoupHandle', 'hSoup', 'InMode')]),
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# WEGetObjectOwner
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("WEGetObjectOwner",
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[('WEReference', '*', 'ReturnMode')],
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[('ExistingWEReference', '*', 'ReturnMode')])
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]
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@ -23,6 +23,7 @@ from macsupport import *
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# Create the type objects
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WEReference = OpaqueByValueType("WEReference", "wasteObj")
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ExistingWEReference = OpaqueByValueType("WEReference", "ExistingwasteObj")
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WEObjectReference = OpaqueByValueType("WEObjectReference", "WEOObj")
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StScrpHandle = OpaqueByValueType("StScrpHandle", "ResObj")
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RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
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@ -49,6 +50,7 @@ LongRect_ptr = LongRect
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includestuff = includestuff + """
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#include <%s>""" % MACHEADERFILE + """
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#include <WEObjectHandlers.h>
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/* Exported by Qdmodule.c: */
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extern PyObject *QdRGB_New(RGBColor *);
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@ -56,6 +58,7 @@ extern int QdRGB_Convert(PyObject *, RGBColor *);
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/* Forward declaration */
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staticforward PyObject *WEOObj_New(WEObjectReference);
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staticforward PyObject *ExistingwasteObj_New(WEReference);
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/*
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** Parse/generate TextStyle records
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@ -120,6 +123,122 @@ LongPt_New(LongPt *p)
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{
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return Py_BuildValue("(ll)", p->h, p->v);
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}
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/* Stuff for the callbacks: */
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static PyObject *callbackdict;
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UniversalProcPtr upp_new_handler, upp_dispose_handler, upp_draw_handler, upp_click_handler;
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static OSErr
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any_handler(WESelector what, WEObjectReference who, PyObject *args, PyObject **rv)
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{
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FlavorType tp;
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PyObject *key, *func;
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if ( args == NULL ) return errAECorruptData;
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tp = WEGetObjectType(who);
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if( (key=Py_BuildValue("O&O&", PyMac_BuildOSType, tp, PyMac_BuildOSType, what)) == NULL)
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return errAECorruptData;
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if( (func = PyDict_GetItem(callbackdict, key)) == NULL ) {
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Py_DECREF(key);
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return errAEHandlerNotFound;
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}
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Py_INCREF(func);
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*rv = PyEval_CallObject(func, args);
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Py_DECREF(func);
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Py_DECREF(key);
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if ( *rv == NULL ) {
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fprintf(stderr, "--Exception in callback: ");
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PyErr_Print();
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return errAEReplyNotArrived;
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}
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return 0;
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}
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static pascal OSErr
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my_new_handler(Point *objectSize, WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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OSErr err;
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args=Py_BuildValue("(O&)", WEOObj_New, objref);
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err = any_handler(weNewHandler, objref, args, &rv);
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if (!err) {
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if (!PyMac_GetPoint(rv, objectSize) )
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err = errAECoercionFail;
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}
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return err;
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}
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static pascal OSErr
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my_dispose_handler(WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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OSErr err;
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args=Py_BuildValue("(O&)", WEOObj_New, objref);
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err = any_handler(weDisposeHandler, objref, args, &rv);
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return err;
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}
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static pascal OSErr
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my_draw_handler(Rect *destRect, WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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OSErr err;
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args=Py_BuildValue("O&O&", PyMac_BuildRect, destRect, WEOObj_New, objref);
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err = any_handler(weDrawHandler, objref, args, &rv);
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return err;
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}
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static pascal Boolean
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my_click_handler(Point hitPt, EventModifiers modifiers,
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unsigned long clickTime, WEObjectReference objref)
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{
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PyObject *args=NULL, *rv=NULL;
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int retvalue;
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OSErr err;
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args=Py_BuildValue("O&llO&", PyMac_BuildPoint, hitPt,
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(long)modifiers, (long)clickTime, WEOObj_New, objref);
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err = any_handler(weClickHandler, objref, args, &rv);
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if (!err)
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retvalue = PyInt_AsLong(rv);
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else
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retvalue = 0;
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if ( args ) Py_DECREF(args);
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if ( rv ) Py_DECREF(rv);
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return retvalue;
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}
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"""
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finalstuff = finalstuff + """
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/* Return the object corresponding to the window, or NULL */
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PyObject *
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ExistingwasteObj_New(w)
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WEReference w;
|
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{
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PyObject *it = NULL;
|
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|
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if (w == NULL)
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it = NULL;
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else
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WEGetInfo(weRefCon, (void *)&it, w);
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if (it == NULL || ((wasteObject *)it)->ob_itself != w)
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it = Py_None;
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Py_INCREF(it);
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return it;
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}
|
||||
"""
|
||||
|
||||
class WEMethodGenerator(OSErrMethodGenerator):
|
||||
|
@ -142,6 +261,9 @@ class WEObjectDefinition(GlobalObjectDefinition):
|
|||
PyErr_SetString(waste_Error,"Cannot create null WE");
|
||||
return NULL;
|
||||
}""")
|
||||
def outputInitStructMembers(self):
|
||||
GlobalObjectDefinition.outputInitStructMembers(self)
|
||||
Output("WESetInfo(weRefCon, (void *)&it, itself);")
|
||||
def outputFreeIt(self, itselfname):
|
||||
Output("WEDispose(%s);", itselfname)
|
||||
|
||||
|
@ -150,7 +272,18 @@ class WEOObjectDefinition(GlobalObjectDefinition):
|
|||
Output("""if (itself == NULL) {
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
}""")
|
||||
}""")
|
||||
|
||||
variablestuff = """
|
||||
callbackdict = PyDict_New();
|
||||
if (callbackdict == NULL || PyDict_SetItemString(d, "callbacks", callbackdict) != 0)
|
||||
Py_FatalError("can't initialize Waste.callbackdict");
|
||||
upp_new_handler = NewWENewObjectProc(my_new_handler);
|
||||
upp_dispose_handler = NewWENewObjectProc(my_dispose_handler);
|
||||
upp_draw_handler = NewWENewObjectProc(my_draw_handler);
|
||||
upp_click_handler = NewWENewObjectProc(my_click_handler);
|
||||
"""
|
||||
|
||||
|
||||
# From here on it's basically all boiler plate...
|
||||
|
||||
|
@ -158,7 +291,7 @@ class WEOObjectDefinition(GlobalObjectDefinition):
|
|||
## execfile(TYPETESTFILE)
|
||||
|
||||
# Create the generator groups and link them
|
||||
module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
|
||||
module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff, variablestuff)
|
||||
object = WEObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
|
||||
object2 = WEOObjectDefinition("WEO", "WEOObj", "WEObjectReference")
|
||||
module.addobject(object2)
|
||||
|
@ -175,9 +308,88 @@ methods = []
|
|||
methods2 = []
|
||||
execfile(INPUTFILE)
|
||||
|
||||
# A function written by hand:
|
||||
stdhandlers_body = """
|
||||
OSErr err;
|
||||
// install the sample object handlers for pictures and sounds
|
||||
#define kTypePicture 'PICT'
|
||||
#define kTypeSound 'snd '
|
||||
|
||||
if ( !PyArg_ParseTuple(_args, "") ) return NULL;
|
||||
|
||||
if ((err = WEInstallObjectHandler(kTypePicture, weNewHandler,
|
||||
(UniversalProcPtr) NewWENewObjectProc(HandleNewPicture), NULL)) != noErr)
|
||||
goto cleanup;
|
||||
|
||||
if ((err = WEInstallObjectHandler(kTypePicture, weDisposeHandler,
|
||||
(UniversalProcPtr) NewWEDisposeObjectProc(HandleDisposePicture), NULL)) != noErr)
|
||||
goto cleanup;
|
||||
|
||||
if ((err = WEInstallObjectHandler(kTypePicture, weDrawHandler,
|
||||
(UniversalProcPtr) NewWEDrawObjectProc(HandleDrawPicture), NULL)) != noErr)
|
||||
goto cleanup;
|
||||
|
||||
if ((err = WEInstallObjectHandler(kTypeSound, weNewHandler,
|
||||
(UniversalProcPtr) NewWENewObjectProc(HandleNewSound), NULL)) != noErr)
|
||||
goto cleanup;
|
||||
|
||||
if ((err = WEInstallObjectHandler(kTypeSound, weDrawHandler,
|
||||
(UniversalProcPtr) NewWEDrawObjectProc(HandleDrawSound), NULL)) != noErr)
|
||||
goto cleanup;
|
||||
|
||||
if ((err = WEInstallObjectHandler(kTypeSound, weClickHandler,
|
||||
(UniversalProcPtr) NewWEClickObjectProc(HandleClickSound), NULL)) != noErr)
|
||||
goto cleanup;
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
|
||||
cleanup:
|
||||
return PyMac_Error(err);
|
||||
"""
|
||||
|
||||
inshandler_body = """
|
||||
OSErr err;
|
||||
FlavorType objectType;
|
||||
WESelector selector;
|
||||
PyObject *py_handler;
|
||||
UniversalProcPtr handler;
|
||||
WEReference we = NULL;
|
||||
PyObject *key;
|
||||
|
||||
|
||||
if ( !PyArg_ParseTuple(_args, "O&O&O|O&",
|
||||
PyMac_GetOSType, &objectType,
|
||||
PyMac_GetOSType, &selector,
|
||||
&py_handler,
|
||||
ExistingwasteObj_New, &we) ) return NULL;
|
||||
|
||||
if ( selector == weNewHandler ) handler = upp_new_handler;
|
||||
else if ( selector == weDisposeHandler ) handler = upp_dispose_handler;
|
||||
else if ( selector == weDrawHandler ) handler = upp_draw_handler;
|
||||
else if ( selector == weClickHandler ) handler = upp_click_handler;
|
||||
else return PyMac_Error(weUndefinedSelectorErr);
|
||||
|
||||
if ((key = Py_BuildValue("O&O&",
|
||||
PyMac_BuildOSType, objectType,
|
||||
PyMac_BuildOSType, selector)) == NULL )
|
||||
return NULL;
|
||||
|
||||
PyDict_SetItem(callbackdict, key, py_handler);
|
||||
|
||||
err = WEInstallObjectHandler(objectType, selector, handler, we);
|
||||
if ( err ) return PyMac_Error(err);
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
"""
|
||||
|
||||
stdhand = ManualGenerator("STDObjectHandlers", stdhandlers_body)
|
||||
inshand = ManualGenerator("WEInstallObjectHandler", inshandler_body)
|
||||
|
||||
# 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)
|
||||
module.add(stdhand)
|
||||
module.add(inshand)
|
||||
for f in methods: object.add(f)
|
||||
for f in methods2: object2.add(f)
|
||||
|
||||
|
|
Loading…
Reference in New Issue