Added support for callbacks (for embedded objects)
diff --git a/Mac/Modules/waste/wastemodule.c b/Mac/Modules/waste/wastemodule.c
index fb8f620..22fd22b 100644
--- a/Mac/Modules/waste/wastemodule.c
+++ b/Mac/Modules/waste/wastemodule.c
@@ -43,6 +43,7 @@
extern PyObject *WinObj_WhichWindow(WindowPtr);
#include <WASTE.h>
+#include <WEObjectHandlers.h>
/* Exported by Qdmodule.c: */
extern PyObject *QdRGB_New(RGBColor *);
@@ -50,6 +51,7 @@
/* Forward declaration */
staticforward PyObject *WEOObj_New(WEObjectReference);
+staticforward PyObject *ExistingwasteObj_New(WEReference);
/*
** Parse/generate TextStyle records
@@ -115,6 +117,103 @@
return Py_BuildValue("(ll)", p->h, p->v);
}
+/* Stuff for the callbacks: */
+static PyObject *callbackdict;
+UniversalProcPtr upp_new_handler, upp_dispose_handler, upp_draw_handler, upp_click_handler;
+
+static OSErr
+any_handler(WESelector what, WEObjectReference who, PyObject *args, PyObject **rv)
+{
+ FlavorType tp;
+ PyObject *key, *func;
+
+ if ( args == NULL ) return errAECorruptData;
+
+ tp = WEGetObjectType(who);
+
+ if( (key=Py_BuildValue("O&O&", PyMac_BuildOSType, tp, PyMac_BuildOSType, what)) == NULL)
+ return errAECorruptData;
+ if( (func = PyDict_GetItem(callbackdict, key)) == NULL ) {
+ Py_DECREF(key);
+ return errAEHandlerNotFound;
+ }
+ Py_INCREF(func);
+ *rv = PyEval_CallObject(func, args);
+ Py_DECREF(func);
+ Py_DECREF(key);
+ if ( *rv == NULL ) {
+ fprintf(stderr, "--Exception in callback: ");
+ PyErr_Print();
+ return errAEReplyNotArrived;
+ }
+ return 0;
+}
+
+static pascal OSErr
+my_new_handler(Point *objectSize, WEObjectReference objref)
+{
+ PyObject *args=NULL, *rv=NULL;
+ OSErr err;
+
+ args=Py_BuildValue("(O&)", WEOObj_New, objref);
+ err = any_handler(weNewHandler, objref, args, &rv);
+ if (!err) {
+ if (!PyMac_GetPoint(rv, objectSize) )
+ err = errAECoercionFail;
+ }
+ if ( args ) Py_DECREF(args);
+ if ( rv ) Py_DECREF(rv);
+ return err;
+}
+
+static pascal OSErr
+my_dispose_handler(WEObjectReference objref)
+{
+ PyObject *args=NULL, *rv=NULL;
+ OSErr err;
+
+ args=Py_BuildValue("(O&)", WEOObj_New, objref);
+ err = any_handler(weDisposeHandler, objref, args, &rv);
+ if ( args ) Py_DECREF(args);
+ if ( rv ) Py_DECREF(rv);
+ return err;
+}
+
+static pascal OSErr
+my_draw_handler(Rect *destRect, WEObjectReference objref)
+{
+ PyObject *args=NULL, *rv=NULL;
+ OSErr err;
+
+ args=Py_BuildValue("O&O&", PyMac_BuildRect, destRect, WEOObj_New, objref);
+ err = any_handler(weDrawHandler, objref, args, &rv);
+ if ( args ) Py_DECREF(args);
+ if ( rv ) Py_DECREF(rv);
+ return err;
+}
+
+static pascal Boolean
+my_click_handler(Point hitPt, EventModifiers modifiers,
+ unsigned long clickTime, WEObjectReference objref)
+{
+ PyObject *args=NULL, *rv=NULL;
+ int retvalue;
+ OSErr err;
+
+ args=Py_BuildValue("O&llO&", PyMac_BuildPoint, hitPt,
+ (long)modifiers, (long)clickTime, WEOObj_New, objref);
+ err = any_handler(weClickHandler, objref, args, &rv);
+ if (!err)
+ retvalue = PyInt_AsLong(rv);
+ else
+ retvalue = 0;
+ if ( args ) Py_DECREF(args);
+ if ( rv ) Py_DECREF(rv);
+ return retvalue;
+}
+
+
+
static PyObject *waste_Error;
/* ------------------------ Object type WEO ------------------------- */
@@ -203,6 +302,20 @@
return _res;
}
+static PyObject *WEOObj_WEGetObjectOwner(_self, _args)
+ WEOObject *_self;
+ PyObject *_args;
+{
+ PyObject *_res = NULL;
+ WEReference _rv;
+ if (!PyArg_ParseTuple(_args, ""))
+ return NULL;
+ _rv = WEGetObjectOwner(_self->ob_itself);
+ _res = Py_BuildValue("O&",
+ ExistingwasteObj_New, _rv);
+ return _res;
+}
+
static PyObject *WEOObj_WEGetObjectRefCon(_self, _args)
WEOObject *_self;
PyObject *_args;
@@ -240,6 +353,8 @@
"() -> (Handle _rv)"},
{"WEGetObjectSize", (PyCFunction)WEOObj_WEGetObjectSize, 1,
"() -> (Point _rv)"},
+ {"WEGetObjectOwner", (PyCFunction)WEOObj_WEGetObjectOwner, 1,
+ "() -> (WEReference _rv)"},
{"WEGetObjectRefCon", (PyCFunction)WEOObj_WEGetObjectRefCon, 1,
"() -> (long _rv)"},
{"WESetObjectRefCon", (PyCFunction)WEOObj_WESetObjectRefCon, 1,
@@ -296,6 +411,7 @@
it = PyObject_NEW(wasteObject, &waste_Type);
if (it == NULL) return NULL;
it->ob_itself = itself;
+ WESetInfo(weRefCon, (void *)&it, itself);
return (PyObject *)it;
}
wasteObj_Convert(v, p_itself)
@@ -1645,6 +1761,91 @@
return _res;
}
+static PyObject *waste_STDObjectHandlers(_self, _args)
+ PyObject *_self;
+ PyObject *_args;
+{
+ PyObject *_res = NULL;
+
+ 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);
+
+}
+
+static PyObject *waste_WEInstallObjectHandler(_self, _args)
+ PyObject *_self;
+ PyObject *_args;
+{
+ PyObject *_res = NULL;
+
+ 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;
+
+}
+
static PyMethodDef waste_methods[] = {
{"WENew", (PyCFunction)waste_WENew, 1,
"(LongRect destRect, LongRect viewRect, unsigned long flags) -> (WEReference we)"},
@@ -1666,11 +1867,33 @@
"(long hOffset, long vOffset) -> (LongRect lr)"},
{"WELongPointInLongRect", (PyCFunction)waste_WELongPointInLongRect, 1,
"(LongPt lp, LongRect lr) -> (Boolean _rv)"},
+ {"STDObjectHandlers", (PyCFunction)waste_STDObjectHandlers, 1,
+ NULL},
+ {"WEInstallObjectHandler", (PyCFunction)waste_WEInstallObjectHandler, 1,
+ NULL},
{NULL, NULL, 0}
};
+/* Return the object corresponding to the window, or NULL */
+
+PyObject *
+ExistingwasteObj_New(w)
+ WEReference w;
+{
+ PyObject *it = NULL;
+
+ if (w == NULL)
+ it = NULL;
+ else
+ WEGetInfo(weRefCon, (void *)&it, w);
+ if (it == NULL || ((wasteObject *)it)->ob_itself != w)
+ it = Py_None;
+ Py_INCREF(it);
+ return it;
+}
+
void initwaste()
{
@@ -1686,6 +1909,16 @@
if (waste_Error == NULL ||
PyDict_SetItemString(d, "Error", waste_Error) != 0)
Py_FatalError("can't initialize waste.Error");
+
+ 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);
+
+
}
/* ======================== End module waste ======================== */