1 /***********************************************************
2 Copyright 1991-1997 by Stichting Mathematisch Centrum, Amsterdam,
3 The Netherlands.
4
5 All Rights Reserved
6
7 Permission to use, copy, modify, and distribute this software and its
8 documentation for any purpose and without fee is hereby granted,
9 provided that the above copyright notice appear in all copies and that
10 both that copyright notice and this permission notice appear in
11 supporting documentation, and that the names of Stichting Mathematisch
12 Centrum or CWI not be used in advertising or publicity pertaining to
13 distribution of the software without specific, written prior permission.
14
15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22
23 ******************************************************************/
24
25
26 #include "Python.h"
27 #include "pymactoolbox.h"
28 #include <arpa/inet.h> /* for ntohl, htonl */
29
30
31 /* Like strerror() but for Mac OS error numbers */
32 char *
PyMac_StrError(int err)33 PyMac_StrError(int err)
34 {
35 static char buf[256];
36 PyObject *m;
37 PyObject *rv;
38
39 m = PyImport_ImportModuleNoBlock("MacOS");
40 if (!m) {
41 if (Py_VerboseFlag)
42 PyErr_Print();
43 PyErr_Clear();
44 rv = NULL;
45 }
46 else {
47 rv = PyObject_CallMethod(m, "GetErrorString", "i", err);
48 if (!rv)
49 PyErr_Clear();
50 }
51 if (!rv) {
52 buf[0] = '\0';
53 }
54 else {
55 char *input = PyString_AsString(rv);
56 if (!input) {
57 PyErr_Clear();
58 buf[0] = '\0';
59 } else {
60 strncpy(buf, input, sizeof(buf) - 1);
61 buf[sizeof(buf) - 1] = '\0';
62 }
63 Py_DECREF(rv);
64 }
65 Py_XDECREF(m);
66 return buf;
67 }
68
69 /* Exception object shared by all Mac specific modules for Mac OS errors */
70 PyObject *PyMac_OSErrException;
71
72 /* Initialize and return PyMac_OSErrException */
73 PyObject *
PyMac_GetOSErrException(void)74 PyMac_GetOSErrException(void)
75 {
76 if (PyMac_OSErrException == NULL)
77 PyMac_OSErrException = PyErr_NewException("MacOS.Error", NULL, NULL);
78 return PyMac_OSErrException;
79 }
80
81 /* Set a MAC-specific error from errno, and return NULL; return None if no error */
82 PyObject *
PyErr_Mac(PyObject * eobj,int err)83 PyErr_Mac(PyObject *eobj, int err)
84 {
85 char *msg;
86 PyObject *v;
87
88 if (err == 0 && !PyErr_Occurred()) {
89 Py_INCREF(Py_None);
90 return Py_None;
91 }
92 if (err == -1 && PyErr_Occurred())
93 return NULL;
94 msg = PyMac_StrError(err);
95 v = Py_BuildValue("(is)", err, msg);
96 PyErr_SetObject(eobj, v);
97 Py_DECREF(v);
98 return NULL;
99 }
100
101 /* Call PyErr_Mac with PyMac_OSErrException */
102 PyObject *
PyMac_Error(OSErr err)103 PyMac_Error(OSErr err)
104 {
105 return PyErr_Mac(PyMac_GetOSErrException(), err);
106 }
107
108
109 #ifndef __LP64__
110 OSErr
PyMac_GetFullPathname(FSSpec * fss,char * path,int len)111 PyMac_GetFullPathname(FSSpec *fss, char *path, int len)
112 {
113 PyObject *fs, *exc;
114 PyObject *rv = NULL;
115 char *input;
116 OSErr err = noErr;
117
118 *path = '\0';
119
120 fs = PyMac_BuildFSSpec(fss);
121 if (!fs)
122 goto error;
123
124 rv = PyObject_CallMethod(fs, "as_pathname", "");
125 if (!rv)
126 goto error;
127
128 input = PyString_AsString(rv);
129 if (!input)
130 goto error;
131
132 strncpy(path, input, len - 1);
133 path[len - 1] = '\0';
134
135 Py_XDECREF(rv);
136 Py_XDECREF(fs);
137 return err;
138
139 error:
140 exc = PyErr_Occurred();
141 if (exc && PyErr_GivenExceptionMatches(exc,
142 PyMac_GetOSErrException())) {
143 PyObject *args = PyObject_GetAttrString(exc, "args");
144 if (args) {
145 char *ignore;
146 PyArg_ParseTuple(args, "is", &err, &ignore);
147 Py_XDECREF(args);
148 }
149 }
150 if (err == noErr)
151 err = -1;
152 PyErr_Clear();
153 Py_XDECREF(rv);
154 Py_XDECREF(fs);
155 return err;
156 }
157 #endif /* !__LP64__ */
158
159 /* Convert a 4-char string object argument to an OSType value */
160 int
PyMac_GetOSType(PyObject * v,OSType * pr)161 PyMac_GetOSType(PyObject *v, OSType *pr)
162 {
163 uint32_t tmp;
164 if (!PyString_Check(v) || PyString_Size(v) != 4) {
165 PyErr_SetString(PyExc_TypeError,
166 "OSType arg must be string of 4 chars");
167 return 0;
168 }
169 memcpy((char *)&tmp, PyString_AsString(v), 4);
170 *pr = (OSType)ntohl(tmp);
171 return 1;
172 }
173
174 /* Convert an OSType value to a 4-char string object */
175 PyObject *
PyMac_BuildOSType(OSType t)176 PyMac_BuildOSType(OSType t)
177 {
178 uint32_t tmp = htonl((uint32_t)t);
179 return PyString_FromStringAndSize((char *)&tmp, 4);
180 }
181
182 /* Convert an NumVersion value to a 4-element tuple */
183 PyObject *
PyMac_BuildNumVersion(NumVersion t)184 PyMac_BuildNumVersion(NumVersion t)
185 {
186 return Py_BuildValue("(hhhh)", t.majorRev, t.minorAndBugRev, t.stage, t.nonRelRev);
187 }
188
189
190 /* Convert a Python string object to a Str255 */
191 int
PyMac_GetStr255(PyObject * v,Str255 pbuf)192 PyMac_GetStr255(PyObject *v, Str255 pbuf)
193 {
194 int len;
195 if (!PyString_Check(v) || (len = PyString_Size(v)) > 255) {
196 PyErr_SetString(PyExc_TypeError,
197 "Str255 arg must be string of at most 255 chars");
198 return 0;
199 }
200 pbuf[0] = len;
201 memcpy((char *)(pbuf+1), PyString_AsString(v), len);
202 return 1;
203 }
204
205 /* Convert a Str255 to a Python string object */
206 PyObject *
PyMac_BuildStr255(Str255 s)207 PyMac_BuildStr255(Str255 s)
208 {
209 if ( s == NULL ) {
210 PyErr_SetString(PyExc_SystemError, "Str255 pointer is NULL");
211 return NULL;
212 }
213 return PyString_FromStringAndSize((char *)&s[1], (int)s[0]);
214 }
215
216 PyObject *
PyMac_BuildOptStr255(Str255 s)217 PyMac_BuildOptStr255(Str255 s)
218 {
219 if ( s == NULL ) {
220 Py_INCREF(Py_None);
221 return Py_None;
222 }
223 return PyString_FromStringAndSize((char *)&s[1], (int)s[0]);
224 }
225
226
227
228 /* Convert a Python object to a Rect.
229 The object must be a (left, top, right, bottom) tuple.
230 (This differs from the order in the struct but is consistent with
231 the arguments to SetRect(), and also with STDWIN). */
232 int
PyMac_GetRect(PyObject * v,Rect * r)233 PyMac_GetRect(PyObject *v, Rect *r)
234 {
235 return PyArg_Parse(v, "(hhhh)", &r->left, &r->top, &r->right, &r->bottom);
236 }
237
238 /* Convert a Rect to a Python object */
239 PyObject *
PyMac_BuildRect(Rect * r)240 PyMac_BuildRect(Rect *r)
241 {
242 return Py_BuildValue("(hhhh)", r->left, r->top, r->right, r->bottom);
243 }
244
245
246 /* Convert a Python object to a Point.
247 The object must be a (h, v) tuple.
248 (This differs from the order in the struct but is consistent with
249 the arguments to SetPoint(), and also with STDWIN). */
250 int
PyMac_GetPoint(PyObject * v,Point * p)251 PyMac_GetPoint(PyObject *v, Point *p)
252 {
253 return PyArg_Parse(v, "(hh)", &p->h, &p->v);
254 }
255
256 /* Convert a Point to a Python object */
257 PyObject *
PyMac_BuildPoint(Point p)258 PyMac_BuildPoint(Point p)
259 {
260 return Py_BuildValue("(hh)", p.h, p.v);
261 }
262
263
264 /* Convert a Python object to an EventRecord.
265 The object must be a (what, message, when, (v, h), modifiers) tuple. */
266 int
PyMac_GetEventRecord(PyObject * v,EventRecord * e)267 PyMac_GetEventRecord(PyObject *v, EventRecord *e)
268 {
269 return PyArg_Parse(v, "(Hkk(hh)H)",
270 &e->what,
271 &e->message,
272 &e->when,
273 &e->where.h,
274 &e->where.v,
275 &e->modifiers);
276 }
277
278 /* Convert a Rect to an EventRecord object */
279 PyObject *
PyMac_BuildEventRecord(EventRecord * e)280 PyMac_BuildEventRecord(EventRecord *e)
281 {
282 return Py_BuildValue("(hll(hh)h)",
283 e->what,
284 e->message,
285 e->when,
286 e->where.h,
287 e->where.v,
288 e->modifiers);
289 }
290
291 /* Convert Python object to Fixed */
292 int
PyMac_GetFixed(PyObject * v,Fixed * f)293 PyMac_GetFixed(PyObject *v, Fixed *f)
294 {
295 double d;
296
297 if( !PyArg_Parse(v, "d", &d))
298 return 0;
299 *f = (Fixed)(d * 0x10000);
300 return 1;
301 }
302
303 /* Convert a Fixed to a Python object */
304 PyObject *
PyMac_BuildFixed(Fixed f)305 PyMac_BuildFixed(Fixed f)
306 {
307 double d;
308
309 d = f;
310 d = d / 0x10000;
311 return Py_BuildValue("d", d);
312 }
313
314 /* Convert wide to/from Python int or (hi, lo) tuple. XXXX Should use Python longs */
315 int
PyMac_Getwide(PyObject * v,wide * rv)316 PyMac_Getwide(PyObject *v, wide *rv)
317 {
318 if (PyInt_Check(v)) {
319 rv->hi = 0;
320 rv->lo = PyInt_AsLong(v);
321 if( rv->lo & 0x80000000 )
322 rv->hi = -1;
323 return 1;
324 }
325 return PyArg_Parse(v, "(kk)", &rv->hi, &rv->lo);
326 }
327
328
329 PyObject *
PyMac_Buildwide(wide * w)330 PyMac_Buildwide(wide *w)
331 {
332 if ( (w->hi == 0 && (w->lo & 0x80000000) == 0) ||
333 (w->hi == -1 && (w->lo & 0x80000000) ) )
334 return PyInt_FromLong(w->lo);
335 return Py_BuildValue("(ll)", w->hi, w->lo);
336 }
337
338 #ifdef USE_TOOLBOX_OBJECT_GLUE
339 /*
340 ** Glue together the toolbox objects.
341 **
342 ** Because toolbox modules interdepend on each other, they use each others
343 ** object types, on MacOSX/MachO this leads to the situation that they
344 ** cannot be dynamically loaded (or they would all have to be lumped into
345 ** a single .so, but this would be bad for extensibility).
346 **
347 ** This file defines wrappers for all the _New and _Convert functions,
348 ** which are the Py_BuildValue and PyArg_ParseTuple helpers. The wrappers
349 ** check an indirection function pointer, and if it isn't filled in yet
350 ** they import the appropriate module, whose init routine should fill in
351 ** the pointer.
352 */
353
354 #define GLUE_NEW(object, routinename, module) \
355 PyObject *(*PyMacGluePtr_##routinename)(object); \
356 \
357 PyObject *routinename(object cobj) { \
358 if (!PyMacGluePtr_##routinename) { \
359 if (!PyImport_ImportModule(module)) return NULL; \
360 if (!PyMacGluePtr_##routinename) { \
361 PyErr_SetString(PyExc_ImportError, "Module did not provide routine: " module ": " #routinename); \
362 return NULL; \
363 } \
364 } \
365 return (*PyMacGluePtr_##routinename)(cobj); \
366 }
367
368 #define GLUE_CONVERT(object, routinename, module) \
369 int (*PyMacGluePtr_##routinename)(PyObject *, object *); \
370 \
371 int routinename(PyObject *pyobj, object *cobj) { \
372 if (!PyMacGluePtr_##routinename) { \
373 if (!PyImport_ImportModule(module)) return 0; \
374 if (!PyMacGluePtr_##routinename) { \
375 PyErr_SetString(PyExc_ImportError, "Module did not provide routine: " module ": " #routinename); \
376 return 0; \
377 } \
378 } \
379 return (*PyMacGluePtr_##routinename)(pyobj, cobj); \
380 }
381
382 GLUE_NEW(FSSpec *, PyMac_BuildFSSpec, "Carbon.File")
383 GLUE_CONVERT(FSSpec, PyMac_GetFSSpec, "Carbon.File")
384 GLUE_NEW(FSRef *, PyMac_BuildFSRef, "Carbon.File")
385 GLUE_CONVERT(FSRef, PyMac_GetFSRef, "Carbon.File")
386
387 GLUE_NEW(AppleEvent *, AEDesc_New, "Carbon.AE") /* XXXX Why by address? */
388 GLUE_NEW(AppleEvent *, AEDesc_NewBorrowed, "Carbon.AE")
389 GLUE_CONVERT(AppleEvent, AEDesc_Convert, "Carbon.AE")
390
391 GLUE_NEW(Component, CmpObj_New, "Carbon.Cm")
392 GLUE_CONVERT(Component, CmpObj_Convert, "Carbon.Cm")
393 GLUE_NEW(ComponentInstance, CmpInstObj_New, "Carbon.Cm")
394 GLUE_CONVERT(ComponentInstance, CmpInstObj_Convert, "Carbon.Cm")
395
396 GLUE_NEW(ControlHandle, CtlObj_New, "Carbon.Ctl")
397 GLUE_CONVERT(ControlHandle, CtlObj_Convert, "Carbon.Ctl")
398
399 GLUE_NEW(DialogPtr, DlgObj_New, "Carbon.Dlg")
400 GLUE_CONVERT(DialogPtr, DlgObj_Convert, "Carbon.Dlg")
401 GLUE_NEW(DialogPtr, DlgObj_WhichDialog, "Carbon.Dlg")
402
403 GLUE_NEW(DragReference, DragObj_New, "Carbon.Drag")
404 GLUE_CONVERT(DragReference, DragObj_Convert, "Carbon.Drag")
405
406 GLUE_NEW(ListHandle, ListObj_New, "Carbon.List")
407 GLUE_CONVERT(ListHandle, ListObj_Convert, "Carbon.List")
408
409 GLUE_NEW(MenuHandle, MenuObj_New, "Carbon.Menu")
410 GLUE_CONVERT(MenuHandle, MenuObj_Convert, "Carbon.Menu")
411
412 GLUE_NEW(GrafPtr, GrafObj_New, "Carbon.Qd")
413 GLUE_CONVERT(GrafPtr, GrafObj_Convert, "Carbon.Qd")
414 GLUE_NEW(BitMapPtr, BMObj_New, "Carbon.Qd")
415 GLUE_CONVERT(BitMapPtr, BMObj_Convert, "Carbon.Qd")
416 GLUE_NEW(RGBColor *, QdRGB_New, "Carbon.Qd") /* XXXX Why? */
417 GLUE_CONVERT(RGBColor, QdRGB_Convert, "Carbon.Qd")
418
419 GLUE_NEW(GWorldPtr, GWorldObj_New, "Carbon.Qdoffs")
420 GLUE_CONVERT(GWorldPtr, GWorldObj_Convert, "Carbon.Qdoffs")
421
422 #ifndef __LP64__
423 GLUE_NEW(Track, TrackObj_New, "Carbon.Qt")
424 GLUE_CONVERT(Track, TrackObj_Convert, "Carbon.Qt")
425 GLUE_NEW(Movie, MovieObj_New, "Carbon.Qt")
426 GLUE_CONVERT(Movie, MovieObj_Convert, "Carbon.Qt")
427 GLUE_NEW(MovieController, MovieCtlObj_New, "Carbon.Qt")
428 GLUE_CONVERT(MovieController, MovieCtlObj_Convert, "Carbon.Qt")
429 GLUE_NEW(TimeBase, TimeBaseObj_New, "Carbon.Qt")
430 GLUE_CONVERT(TimeBase, TimeBaseObj_Convert, "Carbon.Qt")
431 GLUE_NEW(UserData, UserDataObj_New, "Carbon.Qt")
432 GLUE_CONVERT(UserData, UserDataObj_Convert, "Carbon.Qt")
433 GLUE_NEW(Media, MediaObj_New, "Carbon.Qt")
434 GLUE_CONVERT(Media, MediaObj_Convert, "Carbon.Qt")
435 #endif /* !__LP64__ */
436
437 GLUE_NEW(Handle, ResObj_New, "Carbon.Res")
438 GLUE_CONVERT(Handle, ResObj_Convert, "Carbon.Res")
439 GLUE_NEW(Handle, OptResObj_New, "Carbon.Res")
440 GLUE_CONVERT(Handle, OptResObj_Convert, "Carbon.Res")
441
442 GLUE_NEW(TEHandle, TEObj_New, "Carbon.TE")
443 GLUE_CONVERT(TEHandle, TEObj_Convert, "Carbon.TE")
444
445 GLUE_NEW(WindowPtr, WinObj_New, "Carbon.Win")
446 GLUE_CONVERT(WindowPtr, WinObj_Convert, "Carbon.Win")
447 GLUE_NEW(WindowPtr, WinObj_WhichWindow, "Carbon.Win")
448
449 GLUE_CONVERT(CFTypeRef, CFObj_Convert, "Carbon.CF")
450 GLUE_NEW(CFTypeRef, CFObj_New, "Carbon.CF")
451
452 GLUE_CONVERT(CFTypeRef, CFTypeRefObj_Convert, "Carbon.CF")
453 GLUE_NEW(CFTypeRef, CFTypeRefObj_New, "Carbon.CF")
454
455 GLUE_CONVERT(CFStringRef, CFStringRefObj_Convert, "Carbon.CF")
456 GLUE_NEW(CFStringRef, CFStringRefObj_New, "Carbon.CF")
457 GLUE_CONVERT(CFMutableStringRef, CFMutableStringRefObj_Convert, "Carbon.CF")
458 GLUE_NEW(CFMutableStringRef, CFMutableStringRefObj_New, "Carbon.CF")
459
460 GLUE_CONVERT(CFArrayRef, CFArrayRefObj_Convert, "Carbon.CF")
461 GLUE_NEW(CFArrayRef, CFArrayRefObj_New, "Carbon.CF")
462 GLUE_CONVERT(CFMutableArrayRef, CFMutableArrayRefObj_Convert, "Carbon.CF")
463 GLUE_NEW(CFMutableArrayRef, CFMutableArrayRefObj_New, "Carbon.CF")
464
465 GLUE_CONVERT(CFDictionaryRef, CFDictionaryRefObj_Convert, "Carbon.CF")
466 GLUE_NEW(CFDictionaryRef, CFDictionaryRefObj_New, "Carbon.CF")
467 GLUE_CONVERT(CFMutableDictionaryRef, CFMutableDictionaryRefObj_Convert, "Carbon.CF")
468 GLUE_NEW(CFMutableDictionaryRef, CFMutableDictionaryRefObj_New, "Carbon.CF")
469
470 GLUE_CONVERT(CFURLRef, CFURLRefObj_Convert, "Carbon.CF")
471 GLUE_CONVERT(CFURLRef, OptionalCFURLRefObj_Convert, "Carbon.CF")
472 GLUE_NEW(CFURLRef, CFURLRefObj_New, "Carbon.CF")
473
474 #endif /* USE_TOOLBOX_OBJECT_GLUE */
475