1 | /*********************************************************** |
2 | Copyright (C) 1994 Steen Lumholt. |
3 | |
4 | All Rights Reserved |
5 | |
6 | ******************************************************************/ |
7 | |
8 | /* _tkinter.c -- Interface to libtk.a and libtcl.a. */ |
9 | |
10 | /* TCL/TK VERSION INFO: |
11 | |
12 | Only Tcl/Tk 8.4 and later are supported. Older versions are not |
13 | supported. Use Python 3.4 or older if you cannot upgrade your |
14 | Tcl/Tk libraries. |
15 | */ |
16 | |
17 | /* XXX Further speed-up ideas, involving Tcl 8.0 features: |
18 | |
19 | - Register a new Tcl type, "Python callable", which can be called more |
20 | efficiently and passed to Tcl_EvalObj() directly (if this is possible). |
21 | |
22 | */ |
23 | |
24 | #define PY_SSIZE_T_CLEAN |
25 | |
26 | #include "Python.h" |
27 | #include <ctype.h> |
28 | |
29 | #ifdef MS_WINDOWS |
30 | #include <windows.h> |
31 | #endif |
32 | |
33 | #define CHECK_SIZE(size, elemsize) \ |
34 | ((size_t)(size) <= Py_MIN((size_t)INT_MAX, UINT_MAX / (size_t)(elemsize))) |
35 | |
36 | /* If Tcl is compiled for threads, we must also define TCL_THREAD. We define |
37 | it always; if Tcl is not threaded, the thread functions in |
38 | Tcl are empty. */ |
39 | #define TCL_THREADS |
40 | |
41 | #ifdef TK_FRAMEWORK |
42 | #include <Tcl/tcl.h> |
43 | #include <Tk/tk.h> |
44 | #else |
45 | #include <tcl.h> |
46 | #include <tk.h> |
47 | #endif |
48 | |
49 | #include "tkinter.h" |
50 | |
51 | #if TK_HEX_VERSION < 0x08040200 |
52 | #error "Tk older than 8.4 not supported" |
53 | #endif |
54 | |
55 | #if TK_HEX_VERSION >= 0x08050208 && TK_HEX_VERSION < 0x08060000 || \ |
56 | TK_HEX_VERSION >= 0x08060200 |
57 | #define HAVE_LIBTOMMATH |
58 | #include <tclTomMath.h> |
59 | #endif |
60 | |
61 | #if !(defined(MS_WINDOWS) || defined(__CYGWIN__)) |
62 | #define HAVE_CREATEFILEHANDLER |
63 | #endif |
64 | |
65 | #ifdef HAVE_CREATEFILEHANDLER |
66 | |
67 | /* This bit is to ensure that TCL_UNIX_FD is defined and doesn't interfere |
68 | with the proper calculation of FHANDLETYPE == TCL_UNIX_FD below. */ |
69 | #ifndef TCL_UNIX_FD |
70 | # ifdef TCL_WIN_SOCKET |
71 | # define TCL_UNIX_FD (! TCL_WIN_SOCKET) |
72 | # else |
73 | # define TCL_UNIX_FD 1 |
74 | # endif |
75 | #endif |
76 | |
77 | /* Tcl_CreateFileHandler() changed several times; these macros deal with the |
78 | messiness. In Tcl 8.0 and later, it is not available on Windows (and on |
79 | Unix, only because Jack added it back); when available on Windows, it only |
80 | applies to sockets. */ |
81 | |
82 | #ifdef MS_WINDOWS |
83 | #define FHANDLETYPE TCL_WIN_SOCKET |
84 | #else |
85 | #define FHANDLETYPE TCL_UNIX_FD |
86 | #endif |
87 | |
88 | /* If Tcl can wait for a Unix file descriptor, define the EventHook() routine |
89 | which uses this to handle Tcl events while the user is typing commands. */ |
90 | |
91 | #if FHANDLETYPE == TCL_UNIX_FD |
92 | #define WAIT_FOR_STDIN |
93 | #endif |
94 | |
95 | #endif /* HAVE_CREATEFILEHANDLER */ |
96 | |
97 | /* Use OS native encoding for converting between Python strings and |
98 | Tcl objects. |
99 | On Windows use UTF-16 (or UTF-32 for 32-bit Tcl_UniChar) with the |
100 | "surrogatepass" error handler for converting to/from Tcl Unicode objects. |
101 | On Linux use UTF-8 with the "surrogateescape" error handler for converting |
102 | to/from Tcl String objects. */ |
103 | #ifdef MS_WINDOWS |
104 | #define USE_TCL_UNICODE 1 |
105 | #else |
106 | #define USE_TCL_UNICODE 0 |
107 | #endif |
108 | |
109 | #if PY_LITTLE_ENDIAN |
110 | #define NATIVE_BYTEORDER -1 |
111 | #else |
112 | #define NATIVE_BYTEORDER 1 |
113 | #endif |
114 | |
115 | #ifdef MS_WINDOWS |
116 | #include <conio.h> |
117 | #define WAIT_FOR_STDIN |
118 | |
119 | static PyObject * |
120 | _get_tcl_lib_path() |
121 | { |
122 | static PyObject *tcl_library_path = NULL; |
123 | static int already_checked = 0; |
124 | |
125 | if (already_checked == 0) { |
126 | PyObject *prefix; |
127 | struct stat stat_buf; |
128 | int stat_return_value; |
129 | |
130 | prefix = PyUnicode_FromWideChar(Py_GetPrefix(), -1); |
131 | if (prefix == NULL) { |
132 | return NULL; |
133 | } |
134 | |
135 | /* Check expected location for an installed Python first */ |
136 | tcl_library_path = PyUnicode_FromString("\\tcl\\tcl" TCL_VERSION); |
137 | if (tcl_library_path == NULL) { |
138 | return NULL; |
139 | } |
140 | tcl_library_path = PyUnicode_Concat(prefix, tcl_library_path); |
141 | if (tcl_library_path == NULL) { |
142 | return NULL; |
143 | } |
144 | stat_return_value = _Py_stat(tcl_library_path, &stat_buf); |
145 | if (stat_return_value == -2) { |
146 | return NULL; |
147 | } |
148 | if (stat_return_value == -1) { |
149 | /* install location doesn't exist, reset errno and see if |
150 | we're a repository build */ |
151 | errno = 0; |
152 | #ifdef Py_TCLTK_DIR |
153 | tcl_library_path = PyUnicode_FromString( |
154 | Py_TCLTK_DIR "\\lib\\tcl" TCL_VERSION); |
155 | if (tcl_library_path == NULL) { |
156 | return NULL; |
157 | } |
158 | stat_return_value = _Py_stat(tcl_library_path, &stat_buf); |
159 | if (stat_return_value == -2) { |
160 | return NULL; |
161 | } |
162 | if (stat_return_value == -1) { |
163 | /* tcltkDir for a repository build doesn't exist either, |
164 | reset errno and leave Tcl to its own devices */ |
165 | errno = 0; |
166 | tcl_library_path = NULL; |
167 | } |
168 | #else |
169 | tcl_library_path = NULL; |
170 | #endif |
171 | } |
172 | already_checked = 1; |
173 | } |
174 | return tcl_library_path; |
175 | } |
176 | #endif /* MS_WINDOWS */ |
177 | |
178 | /* The threading situation is complicated. Tcl is not thread-safe, except |
179 | when configured with --enable-threads. |
180 | |
181 | So we need to use a lock around all uses of Tcl. Previously, the |
182 | Python interpreter lock was used for this. However, this causes |
183 | problems when other Python threads need to run while Tcl is blocked |
184 | waiting for events. |
185 | |
186 | To solve this problem, a separate lock for Tcl is introduced. |
187 | Holding it is incompatible with holding Python's interpreter lock. |
188 | The following four macros manipulate both locks together. |
189 | |
190 | ENTER_TCL and LEAVE_TCL are brackets, just like |
191 | Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS. They should be |
192 | used whenever a call into Tcl is made that could call an event |
193 | handler, or otherwise affect the state of a Tcl interpreter. These |
194 | assume that the surrounding code has the Python interpreter lock; |
195 | inside the brackets, the Python interpreter lock has been released |
196 | and the lock for Tcl has been acquired. |
197 | |
198 | Sometimes, it is necessary to have both the Python lock and the Tcl |
199 | lock. (For example, when transferring data from the Tcl |
200 | interpreter result to a Python string object.) This can be done by |
201 | using different macros to close the ENTER_TCL block: ENTER_OVERLAP |
202 | reacquires the Python lock (and restores the thread state) but |
203 | doesn't release the Tcl lock; LEAVE_OVERLAP_TCL releases the Tcl |
204 | lock. |
205 | |
206 | By contrast, ENTER_PYTHON and LEAVE_PYTHON are used in Tcl event |
207 | handlers when the handler needs to use Python. Such event handlers |
208 | are entered while the lock for Tcl is held; the event handler |
209 | presumably needs to use Python. ENTER_PYTHON releases the lock for |
210 | Tcl and acquires the Python interpreter lock, restoring the |
211 | appropriate thread state, and LEAVE_PYTHON releases the Python |
212 | interpreter lock and re-acquires the lock for Tcl. It is okay for |
213 | ENTER_TCL/LEAVE_TCL pairs to be contained inside the code between |
214 | ENTER_PYTHON and LEAVE_PYTHON. |
215 | |
216 | These locks expand to several statements and brackets; they should |
217 | not be used in branches of if statements and the like. |
218 | |
219 | If Tcl is threaded, this approach won't work anymore. The Tcl |
220 | interpreter is only valid in the thread that created it, and all Tk |
221 | activity must happen in this thread, also. That means that the |
222 | mainloop must be invoked in the thread that created the |
223 | interpreter. Invoking commands from other threads is possible; |
224 | _tkinter will queue an event for the interpreter thread, which will |
225 | then execute the command and pass back the result. If the main |
226 | thread is not in the mainloop, and invoking commands causes an |
227 | exception; if the main loop is running but not processing events, |
228 | the command invocation will block. |
229 | |
230 | In addition, for a threaded Tcl, a single global tcl_tstate won't |
231 | be sufficient anymore, since multiple Tcl interpreters may |
232 | simultaneously dispatch in different threads. So we use the Tcl TLS |
233 | API. |
234 | |
235 | */ |
236 | |
237 | static PyThread_type_lock tcl_lock = 0; |
238 | |
239 | #ifdef TCL_THREADS |
240 | static Tcl_ThreadDataKey state_key; |
241 | typedef PyThreadState *ThreadSpecificData; |
242 | #define tcl_tstate \ |
243 | (*(PyThreadState**)Tcl_GetThreadData(&state_key, sizeof(PyThreadState*))) |
244 | #else |
245 | static PyThreadState *tcl_tstate = NULL; |
246 | #endif |
247 | |
248 | #define ENTER_TCL \ |
249 | { PyThreadState *tstate = PyThreadState_Get(); \ |
250 | Py_BEGIN_ALLOW_THREADS \ |
251 | if(tcl_lock)PyThread_acquire_lock(tcl_lock, 1); \ |
252 | tcl_tstate = tstate; |
253 | |
254 | #define LEAVE_TCL \ |
255 | tcl_tstate = NULL; \ |
256 | if(tcl_lock)PyThread_release_lock(tcl_lock); \ |
257 | Py_END_ALLOW_THREADS} |
258 | |
259 | #define ENTER_OVERLAP \ |
260 | Py_END_ALLOW_THREADS |
261 | |
262 | #define LEAVE_OVERLAP_TCL \ |
263 | tcl_tstate = NULL; if(tcl_lock)PyThread_release_lock(tcl_lock); } |
264 | |
265 | #define ENTER_PYTHON \ |
266 | { PyThreadState *tstate = tcl_tstate; tcl_tstate = NULL; \ |
267 | if(tcl_lock) \ |
268 | PyThread_release_lock(tcl_lock); \ |
269 | PyEval_RestoreThread((tstate)); } |
270 | |
271 | #define LEAVE_PYTHON \ |
272 | { PyThreadState *tstate = PyEval_SaveThread(); \ |
273 | if(tcl_lock)PyThread_acquire_lock(tcl_lock, 1); \ |
274 | tcl_tstate = tstate; } |
275 | |
276 | #define CHECK_TCL_APPARTMENT \ |
277 | if (((TkappObject *)self)->threaded && \ |
278 | ((TkappObject *)self)->thread_id != Tcl_GetCurrentThread()) { \ |
279 | PyErr_SetString(PyExc_RuntimeError, \ |
280 | "Calling Tcl from different apartment"); \ |
281 | return 0; \ |
282 | } |
283 | |
284 | #ifndef FREECAST |
285 | #define FREECAST (char *) |
286 | #endif |
287 | |
288 | /**** Tkapp Object Declaration ****/ |
289 | |
290 | static PyObject *Tkapp_Type; |
291 | |
292 | typedef struct { |
293 | PyObject_HEAD |
294 | Tcl_Interp *interp; |
295 | int wantobjects; |
296 | int threaded; /* True if tcl_platform[threaded] */ |
297 | Tcl_ThreadId thread_id; |
298 | int dispatching; |
299 | /* We cannot include tclInt.h, as this is internal. |
300 | So we cache interesting types here. */ |
301 | const Tcl_ObjType *OldBooleanType; |
302 | const Tcl_ObjType *BooleanType; |
303 | const Tcl_ObjType *ByteArrayType; |
304 | const Tcl_ObjType *DoubleType; |
305 | const Tcl_ObjType *IntType; |
306 | const Tcl_ObjType *WideIntType; |
307 | const Tcl_ObjType *BignumType; |
308 | const Tcl_ObjType *ListType; |
309 | const Tcl_ObjType *ProcBodyType; |
310 | const Tcl_ObjType *StringType; |
311 | } TkappObject; |
312 | |
313 | #define Tkapp_Interp(v) (((TkappObject *) (v))->interp) |
314 | |
315 | #define DEBUG_REFCNT(v) (printf("DEBUG: id=%p, refcnt=%i\n", \ |
316 | (void *) v, Py_REFCNT(v))) |
317 | |
318 | |
319 | |
320 | /**** Error Handling ****/ |
321 | |
322 | static PyObject *Tkinter_TclError; |
323 | static int quitMainLoop = 0; |
324 | static int errorInCmd = 0; |
325 | static PyObject *excInCmd; |
326 | static PyObject *valInCmd; |
327 | static PyObject *trbInCmd; |
328 | |
329 | #ifdef TKINTER_PROTECT_LOADTK |
330 | static int tk_load_failed = 0; |
331 | #endif |
332 | |
333 | |
334 | static PyObject *Tkapp_UnicodeResult(TkappObject *); |
335 | |
336 | static PyObject * |
337 | Tkinter_Error(TkappObject *self) |
338 | { |
339 | PyObject *res = Tkapp_UnicodeResult(self); |
340 | if (res != NULL) { |
341 | PyErr_SetObject(Tkinter_TclError, res); |
342 | Py_DECREF(res); |
343 | } |
344 | return NULL; |
345 | } |
346 | |
347 | |
348 | |
349 | /**** Utils ****/ |
350 | |
351 | static int Tkinter_busywaitinterval = 20; |
352 | |
353 | #ifndef MS_WINDOWS |
354 | |
355 | /* Millisecond sleep() for Unix platforms. */ |
356 | |
357 | static void |
358 | Sleep(int milli) |
359 | { |
360 | /* XXX Too bad if you don't have select(). */ |
361 | struct timeval t; |
362 | t.tv_sec = milli/1000; |
363 | t.tv_usec = (milli%1000) * 1000; |
364 | select(0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &t); |
365 | } |
366 | #endif /* MS_WINDOWS */ |
367 | |
368 | /* Wait up to 1s for the mainloop to come up. */ |
369 | |
370 | static int |
371 | WaitForMainloop(TkappObject* self) |
372 | { |
373 | int i; |
374 | for (i = 0; i < 10; i++) { |
375 | if (self->dispatching) |
376 | return 1; |
377 | Py_BEGIN_ALLOW_THREADS |
378 | Sleep(100); |
379 | Py_END_ALLOW_THREADS |
380 | } |
381 | if (self->dispatching) |
382 | return 1; |
383 | PyErr_SetString(PyExc_RuntimeError, "main thread is not in main loop" ); |
384 | return 0; |
385 | } |
386 | |
387 | |
388 | |
389 | #define ARGSZ 64 |
390 | |
391 | |
392 | |
393 | static PyObject * |
394 | unicodeFromTclStringAndSize(const char *s, Py_ssize_t size) |
395 | { |
396 | PyObject *r = PyUnicode_DecodeUTF8(s, size, NULL); |
397 | if (r != NULL || !PyErr_ExceptionMatches(PyExc_UnicodeDecodeError)) { |
398 | return r; |
399 | } |
400 | |
401 | char *buf = NULL; |
402 | PyErr_Clear(); |
403 | /* Tcl encodes null character as \xc0\x80. |
404 | https://en.wikipedia.org/wiki/UTF-8#Modified_UTF-8 */ |
405 | if (memchr(s, '\xc0', size)) { |
406 | char *q; |
407 | const char *e = s + size; |
408 | q = buf = (char *)PyMem_Malloc(size); |
409 | if (buf == NULL) { |
410 | PyErr_NoMemory(); |
411 | return NULL; |
412 | } |
413 | while (s != e) { |
414 | if (s + 1 != e && s[0] == '\xc0' && s[1] == '\x80') { |
415 | *q++ = '\0'; |
416 | s += 2; |
417 | } |
418 | else |
419 | *q++ = *s++; |
420 | } |
421 | s = buf; |
422 | size = q - s; |
423 | } |
424 | r = PyUnicode_DecodeUTF8(s, size, "surrogateescape" ); |
425 | if (buf != NULL) { |
426 | PyMem_Free(buf); |
427 | } |
428 | if (r == NULL || PyUnicode_KIND(r) == PyUnicode_1BYTE_KIND) { |
429 | return r; |
430 | } |
431 | |
432 | /* In CESU-8 non-BMP characters are represented as a surrogate pair, |
433 | like in UTF-16, and then each surrogate code point is encoded in UTF-8. |
434 | https://en.wikipedia.org/wiki/CESU-8 */ |
435 | Py_ssize_t len = PyUnicode_GET_LENGTH(r); |
436 | Py_ssize_t i, j; |
437 | /* All encoded surrogate characters start with \xED. */ |
438 | i = PyUnicode_FindChar(r, 0xdcED, 0, len, 1); |
439 | if (i == -2) { |
440 | Py_DECREF(r); |
441 | return NULL; |
442 | } |
443 | if (i == -1) { |
444 | return r; |
445 | } |
446 | Py_UCS4 *u = PyUnicode_AsUCS4Copy(r); |
447 | Py_DECREF(r); |
448 | if (u == NULL) { |
449 | return NULL; |
450 | } |
451 | Py_UCS4 ch; |
452 | for (j = i; i < len; i++, u[j++] = ch) { |
453 | Py_UCS4 ch1, ch2, ch3, high, low; |
454 | /* Low surrogates U+D800 - U+DBFF are encoded as |
455 | \xED\xA0\x80 - \xED\xAF\xBF. */ |
456 | ch1 = ch = u[i]; |
457 | if (ch1 != 0xdcED) continue; |
458 | ch2 = u[i + 1]; |
459 | if (!(0xdcA0 <= ch2 && ch2 <= 0xdcAF)) continue; |
460 | ch3 = u[i + 2]; |
461 | if (!(0xdc80 <= ch3 && ch3 <= 0xdcBF)) continue; |
462 | high = 0xD000 | ((ch2 & 0x3F) << 6) | (ch3 & 0x3F); |
463 | assert(Py_UNICODE_IS_HIGH_SURROGATE(high)); |
464 | /* High surrogates U+DC00 - U+DFFF are encoded as |
465 | \xED\xB0\x80 - \xED\xBF\xBF. */ |
466 | ch1 = u[i + 3]; |
467 | if (ch1 != 0xdcED) continue; |
468 | ch2 = u[i + 4]; |
469 | if (!(0xdcB0 <= ch2 && ch2 <= 0xdcBF)) continue; |
470 | ch3 = u[i + 5]; |
471 | if (!(0xdc80 <= ch3 && ch3 <= 0xdcBF)) continue; |
472 | low = 0xD000 | ((ch2 & 0x3F) << 6) | (ch3 & 0x3F); |
473 | assert(Py_UNICODE_IS_HIGH_SURROGATE(high)); |
474 | ch = Py_UNICODE_JOIN_SURROGATES(high, low); |
475 | i += 5; |
476 | } |
477 | r = PyUnicode_FromKindAndData(PyUnicode_4BYTE_KIND, u, j); |
478 | PyMem_Free(u); |
479 | return r; |
480 | } |
481 | |
482 | static PyObject * |
483 | unicodeFromTclString(const char *s) |
484 | { |
485 | return unicodeFromTclStringAndSize(s, strlen(s)); |
486 | } |
487 | |
488 | static PyObject * |
489 | unicodeFromTclObj(Tcl_Obj *value) |
490 | { |
491 | int len; |
492 | #if USE_TCL_UNICODE |
493 | int byteorder = NATIVE_BYTEORDER; |
494 | const Tcl_UniChar *u = Tcl_GetUnicodeFromObj(value, &len); |
495 | if (sizeof(Tcl_UniChar) == 2) |
496 | return PyUnicode_DecodeUTF16((const char *)u, len * 2, |
497 | "surrogatepass" , &byteorder); |
498 | else if (sizeof(Tcl_UniChar) == 4) |
499 | return PyUnicode_DecodeUTF32((const char *)u, len * 4, |
500 | "surrogatepass" , &byteorder); |
501 | else |
502 | Py_UNREACHABLE(); |
503 | #else |
504 | const char *s = Tcl_GetStringFromObj(value, &len); |
505 | return unicodeFromTclStringAndSize(s, len); |
506 | #endif |
507 | } |
508 | |
509 | |
510 | static PyObject * |
511 | Split(const char *list) |
512 | { |
513 | int argc; |
514 | const char **argv; |
515 | PyObject *v; |
516 | |
517 | if (list == NULL) { |
518 | Py_RETURN_NONE; |
519 | } |
520 | |
521 | if (Tcl_SplitList((Tcl_Interp *)NULL, list, &argc, &argv) != TCL_OK) { |
522 | /* Not a list. |
523 | * Could be a quoted string containing funnies, e.g. {"}. |
524 | * Return the string itself. |
525 | */ |
526 | return unicodeFromTclString(list); |
527 | } |
528 | |
529 | if (argc == 0) |
530 | v = PyUnicode_FromString("" ); |
531 | else if (argc == 1) |
532 | v = unicodeFromTclString(argv[0]); |
533 | else if ((v = PyTuple_New(argc)) != NULL) { |
534 | int i; |
535 | PyObject *w; |
536 | |
537 | for (i = 0; i < argc; i++) { |
538 | if ((w = Split(argv[i])) == NULL) { |
539 | Py_DECREF(v); |
540 | v = NULL; |
541 | break; |
542 | } |
543 | PyTuple_SET_ITEM(v, i, w); |
544 | } |
545 | } |
546 | Tcl_Free(FREECAST argv); |
547 | return v; |
548 | } |
549 | |
550 | /* In some cases, Tcl will still return strings that are supposed to |
551 | be lists. SplitObj walks through a nested tuple, finding string |
552 | objects that need to be split. */ |
553 | |
554 | static PyObject * |
555 | SplitObj(PyObject *arg) |
556 | { |
557 | if (PyTuple_Check(arg)) { |
558 | Py_ssize_t i, size; |
559 | PyObject *elem, *newelem, *result; |
560 | |
561 | size = PyTuple_GET_SIZE(arg); |
562 | result = NULL; |
563 | /* Recursively invoke SplitObj for all tuple items. |
564 | If this does not return a new object, no action is |
565 | needed. */ |
566 | for(i = 0; i < size; i++) { |
567 | elem = PyTuple_GET_ITEM(arg, i); |
568 | newelem = SplitObj(elem); |
569 | if (!newelem) { |
570 | Py_XDECREF(result); |
571 | return NULL; |
572 | } |
573 | if (!result) { |
574 | Py_ssize_t k; |
575 | if (newelem == elem) { |
576 | Py_DECREF(newelem); |
577 | continue; |
578 | } |
579 | result = PyTuple_New(size); |
580 | if (!result) |
581 | return NULL; |
582 | for(k = 0; k < i; k++) { |
583 | elem = PyTuple_GET_ITEM(arg, k); |
584 | Py_INCREF(elem); |
585 | PyTuple_SET_ITEM(result, k, elem); |
586 | } |
587 | } |
588 | PyTuple_SET_ITEM(result, i, newelem); |
589 | } |
590 | if (result) |
591 | return result; |
592 | /* Fall through, returning arg. */ |
593 | } |
594 | else if (PyList_Check(arg)) { |
595 | Py_ssize_t i, size; |
596 | PyObject *elem, *newelem, *result; |
597 | |
598 | size = PyList_GET_SIZE(arg); |
599 | result = PyTuple_New(size); |
600 | if (!result) |
601 | return NULL; |
602 | /* Recursively invoke SplitObj for all list items. */ |
603 | for(i = 0; i < size; i++) { |
604 | elem = PyList_GET_ITEM(arg, i); |
605 | newelem = SplitObj(elem); |
606 | if (!newelem) { |
607 | Py_XDECREF(result); |
608 | return NULL; |
609 | } |
610 | PyTuple_SET_ITEM(result, i, newelem); |
611 | } |
612 | return result; |
613 | } |
614 | else if (PyUnicode_Check(arg)) { |
615 | int argc; |
616 | const char **argv; |
617 | const char *list = PyUnicode_AsUTF8(arg); |
618 | |
619 | if (list == NULL || |
620 | Tcl_SplitList((Tcl_Interp *)NULL, list, &argc, &argv) != TCL_OK) { |
621 | Py_INCREF(arg); |
622 | return arg; |
623 | } |
624 | Tcl_Free(FREECAST argv); |
625 | if (argc > 1) |
626 | return Split(list); |
627 | /* Fall through, returning arg. */ |
628 | } |
629 | else if (PyBytes_Check(arg)) { |
630 | int argc; |
631 | const char **argv; |
632 | const char *list = PyBytes_AS_STRING(arg); |
633 | |
634 | if (Tcl_SplitList((Tcl_Interp *)NULL, (char *)list, &argc, &argv) != TCL_OK) { |
635 | Py_INCREF(arg); |
636 | return arg; |
637 | } |
638 | Tcl_Free(FREECAST argv); |
639 | if (argc > 1) |
640 | return Split(PyBytes_AS_STRING(arg)); |
641 | /* Fall through, returning arg. */ |
642 | } |
643 | Py_INCREF(arg); |
644 | return arg; |
645 | } |
646 | |
647 | |
648 | /*[clinic input] |
649 | module _tkinter |
650 | class _tkinter.tkapp "TkappObject *" "&Tkapp_Type_spec" |
651 | class _tkinter.Tcl_Obj "PyTclObject *" "&PyTclObject_Type_spec" |
652 | class _tkinter.tktimertoken "TkttObject *" "&Tktt_Type_spec" |
653 | [clinic start generated code]*/ |
654 | /*[clinic end generated code: output=da39a3ee5e6b4b0d input=b1ebf15c162ee229]*/ |
655 | |
656 | /**** Tkapp Object ****/ |
657 | |
658 | #ifndef WITH_APPINIT |
659 | int |
660 | Tcl_AppInit(Tcl_Interp *interp) |
661 | { |
662 | const char * _tkinter_skip_tk_init; |
663 | |
664 | if (Tcl_Init(interp) == TCL_ERROR) { |
665 | PySys_WriteStderr("Tcl_Init error: %s\n" , Tcl_GetStringResult(interp)); |
666 | return TCL_ERROR; |
667 | } |
668 | |
669 | _tkinter_skip_tk_init = Tcl_GetVar(interp, |
670 | "_tkinter_skip_tk_init" , TCL_GLOBAL_ONLY); |
671 | if (_tkinter_skip_tk_init != NULL && |
672 | strcmp(_tkinter_skip_tk_init, "1" ) == 0) { |
673 | return TCL_OK; |
674 | } |
675 | |
676 | #ifdef TKINTER_PROTECT_LOADTK |
677 | if (tk_load_failed) { |
678 | PySys_WriteStderr("Tk_Init error: %s\n" , TKINTER_LOADTK_ERRMSG); |
679 | return TCL_ERROR; |
680 | } |
681 | #endif |
682 | |
683 | if (Tk_Init(interp) == TCL_ERROR) { |
684 | #ifdef TKINTER_PROTECT_LOADTK |
685 | tk_load_failed = 1; |
686 | #endif |
687 | PySys_WriteStderr("Tk_Init error: %s\n" , Tcl_GetStringResult(interp)); |
688 | return TCL_ERROR; |
689 | } |
690 | |
691 | return TCL_OK; |
692 | } |
693 | #endif /* !WITH_APPINIT */ |
694 | |
695 | |
696 | |
697 | |
698 | /* Initialize the Tk application; see the `main' function in |
699 | * `tkMain.c'. |
700 | */ |
701 | |
702 | static void EnableEventHook(void); /* Forward */ |
703 | static void DisableEventHook(void); /* Forward */ |
704 | |
705 | static TkappObject * |
706 | Tkapp_New(const char *screenName, const char *className, |
707 | int interactive, int wantobjects, int wantTk, int sync, |
708 | const char *use) |
709 | { |
710 | TkappObject *v; |
711 | char *argv0; |
712 | |
713 | v = PyObject_New(TkappObject, (PyTypeObject *) Tkapp_Type); |
714 | if (v == NULL) |
715 | return NULL; |
716 | |
717 | v->interp = Tcl_CreateInterp(); |
718 | v->wantobjects = wantobjects; |
719 | v->threaded = Tcl_GetVar2Ex(v->interp, "tcl_platform" , "threaded" , |
720 | TCL_GLOBAL_ONLY) != NULL; |
721 | v->thread_id = Tcl_GetCurrentThread(); |
722 | v->dispatching = 0; |
723 | |
724 | #ifndef TCL_THREADS |
725 | if (v->threaded) { |
726 | PyErr_SetString(PyExc_RuntimeError, |
727 | "Tcl is threaded but _tkinter is not" ); |
728 | Py_DECREF(v); |
729 | return 0; |
730 | } |
731 | #endif |
732 | if (v->threaded && tcl_lock) { |
733 | /* If Tcl is threaded, we don't need the lock. */ |
734 | PyThread_free_lock(tcl_lock); |
735 | tcl_lock = NULL; |
736 | } |
737 | |
738 | v->OldBooleanType = Tcl_GetObjType("boolean" ); |
739 | v->BooleanType = Tcl_GetObjType("booleanString" ); |
740 | v->ByteArrayType = Tcl_GetObjType("bytearray" ); |
741 | v->DoubleType = Tcl_GetObjType("double" ); |
742 | v->IntType = Tcl_GetObjType("int" ); |
743 | v->WideIntType = Tcl_GetObjType("wideInt" ); |
744 | v->BignumType = Tcl_GetObjType("bignum" ); |
745 | v->ListType = Tcl_GetObjType("list" ); |
746 | v->ProcBodyType = Tcl_GetObjType("procbody" ); |
747 | v->StringType = Tcl_GetObjType("string" ); |
748 | |
749 | /* Delete the 'exit' command, which can screw things up */ |
750 | Tcl_DeleteCommand(v->interp, "exit" ); |
751 | |
752 | if (screenName != NULL) |
753 | Tcl_SetVar2(v->interp, "env" , "DISPLAY" , |
754 | screenName, TCL_GLOBAL_ONLY); |
755 | |
756 | if (interactive) |
757 | Tcl_SetVar(v->interp, "tcl_interactive" , "1" , TCL_GLOBAL_ONLY); |
758 | else |
759 | Tcl_SetVar(v->interp, "tcl_interactive" , "0" , TCL_GLOBAL_ONLY); |
760 | |
761 | /* This is used to get the application class for Tk 4.1 and up */ |
762 | argv0 = (char*)PyMem_Malloc(strlen(className) + 1); |
763 | if (!argv0) { |
764 | PyErr_NoMemory(); |
765 | Py_DECREF(v); |
766 | return NULL; |
767 | } |
768 | |
769 | strcpy(argv0, className); |
770 | if (Py_ISUPPER(argv0[0])) |
771 | argv0[0] = Py_TOLOWER(argv0[0]); |
772 | Tcl_SetVar(v->interp, "argv0" , argv0, TCL_GLOBAL_ONLY); |
773 | PyMem_Free(argv0); |
774 | |
775 | if (! wantTk) { |
776 | Tcl_SetVar(v->interp, |
777 | "_tkinter_skip_tk_init" , "1" , TCL_GLOBAL_ONLY); |
778 | } |
779 | #ifdef TKINTER_PROTECT_LOADTK |
780 | else if (tk_load_failed) { |
781 | Tcl_SetVar(v->interp, |
782 | "_tkinter_tk_failed" , "1" , TCL_GLOBAL_ONLY); |
783 | } |
784 | #endif |
785 | |
786 | /* some initial arguments need to be in argv */ |
787 | if (sync || use) { |
788 | char *args; |
789 | Py_ssize_t len = 0; |
790 | |
791 | if (sync) |
792 | len += sizeof "-sync" ; |
793 | if (use) |
794 | len += strlen(use) + sizeof "-use " ; /* never overflows */ |
795 | |
796 | args = (char*)PyMem_Malloc(len); |
797 | if (!args) { |
798 | PyErr_NoMemory(); |
799 | Py_DECREF(v); |
800 | return NULL; |
801 | } |
802 | |
803 | args[0] = '\0'; |
804 | if (sync) |
805 | strcat(args, "-sync" ); |
806 | if (use) { |
807 | if (sync) |
808 | strcat(args, " " ); |
809 | strcat(args, "-use " ); |
810 | strcat(args, use); |
811 | } |
812 | |
813 | Tcl_SetVar(v->interp, "argv" , args, TCL_GLOBAL_ONLY); |
814 | PyMem_Free(args); |
815 | } |
816 | |
817 | #ifdef MS_WINDOWS |
818 | { |
819 | PyObject *str_path; |
820 | PyObject *utf8_path; |
821 | DWORD ret; |
822 | |
823 | ret = GetEnvironmentVariableW(L"TCL_LIBRARY" , NULL, 0); |
824 | if (!ret && GetLastError() == ERROR_ENVVAR_NOT_FOUND) { |
825 | str_path = _get_tcl_lib_path(); |
826 | if (str_path == NULL && PyErr_Occurred()) { |
827 | return NULL; |
828 | } |
829 | if (str_path != NULL) { |
830 | utf8_path = PyUnicode_AsUTF8String(str_path); |
831 | if (utf8_path == NULL) { |
832 | return NULL; |
833 | } |
834 | Tcl_SetVar(v->interp, |
835 | "tcl_library" , |
836 | PyBytes_AS_STRING(utf8_path), |
837 | TCL_GLOBAL_ONLY); |
838 | Py_DECREF(utf8_path); |
839 | } |
840 | } |
841 | } |
842 | #endif |
843 | |
844 | if (Tcl_AppInit(v->interp) != TCL_OK) { |
845 | PyObject *result = Tkinter_Error(v); |
846 | #ifdef TKINTER_PROTECT_LOADTK |
847 | if (wantTk) { |
848 | const char *_tkinter_tk_failed; |
849 | _tkinter_tk_failed = Tcl_GetVar(v->interp, |
850 | "_tkinter_tk_failed" , TCL_GLOBAL_ONLY); |
851 | |
852 | if ( _tkinter_tk_failed != NULL && |
853 | strcmp(_tkinter_tk_failed, "1" ) == 0) { |
854 | tk_load_failed = 1; |
855 | } |
856 | } |
857 | #endif |
858 | Py_DECREF((PyObject *)v); |
859 | return (TkappObject *)result; |
860 | } |
861 | |
862 | EnableEventHook(); |
863 | |
864 | return v; |
865 | } |
866 | |
867 | |
868 | static void |
869 | Tkapp_ThreadSend(TkappObject *self, Tcl_Event *ev, |
870 | Tcl_Condition *cond, Tcl_Mutex *mutex) |
871 | { |
872 | Py_BEGIN_ALLOW_THREADS; |
873 | Tcl_MutexLock(mutex); |
874 | Tcl_ThreadQueueEvent(self->thread_id, ev, TCL_QUEUE_TAIL); |
875 | Tcl_ThreadAlert(self->thread_id); |
876 | Tcl_ConditionWait(cond, mutex, NULL); |
877 | Tcl_MutexUnlock(mutex); |
878 | Py_END_ALLOW_THREADS |
879 | } |
880 | |
881 | |
882 | /** Tcl Eval **/ |
883 | |
884 | typedef struct { |
885 | PyObject_HEAD |
886 | Tcl_Obj *value; |
887 | PyObject *string; /* This cannot cause cycles. */ |
888 | } PyTclObject; |
889 | |
890 | static PyObject *PyTclObject_Type; |
891 | #define PyTclObject_Check(v) Py_IS_TYPE(v, (PyTypeObject *) PyTclObject_Type) |
892 | |
893 | static PyObject * |
894 | newPyTclObject(Tcl_Obj *arg) |
895 | { |
896 | PyTclObject *self; |
897 | self = PyObject_New(PyTclObject, (PyTypeObject *) PyTclObject_Type); |
898 | if (self == NULL) |
899 | return NULL; |
900 | Tcl_IncrRefCount(arg); |
901 | self->value = arg; |
902 | self->string = NULL; |
903 | return (PyObject*)self; |
904 | } |
905 | |
906 | static void |
907 | PyTclObject_dealloc(PyTclObject *self) |
908 | { |
909 | PyObject *tp = (PyObject *) Py_TYPE(self); |
910 | Tcl_DecrRefCount(self->value); |
911 | Py_XDECREF(self->string); |
912 | PyObject_Free(self); |
913 | Py_DECREF(tp); |
914 | } |
915 | |
916 | /* Like _str, but create Unicode if necessary. */ |
917 | PyDoc_STRVAR(PyTclObject_string__doc__, |
918 | "the string representation of this object, either as str or bytes" ); |
919 | |
920 | static PyObject * |
921 | PyTclObject_string(PyTclObject *self, void *ignored) |
922 | { |
923 | if (!self->string) { |
924 | self->string = unicodeFromTclObj(self->value); |
925 | if (!self->string) |
926 | return NULL; |
927 | } |
928 | Py_INCREF(self->string); |
929 | return self->string; |
930 | } |
931 | |
932 | static PyObject * |
933 | PyTclObject_str(PyTclObject *self) |
934 | { |
935 | if (self->string) { |
936 | Py_INCREF(self->string); |
937 | return self->string; |
938 | } |
939 | /* XXX Could cache result if it is non-ASCII. */ |
940 | return unicodeFromTclObj(self->value); |
941 | } |
942 | |
943 | static PyObject * |
944 | PyTclObject_repr(PyTclObject *self) |
945 | { |
946 | PyObject *repr, *str = PyTclObject_str(self); |
947 | if (str == NULL) |
948 | return NULL; |
949 | repr = PyUnicode_FromFormat("<%s object: %R>" , |
950 | self->value->typePtr->name, str); |
951 | Py_DECREF(str); |
952 | return repr; |
953 | } |
954 | |
955 | static PyObject * |
956 | PyTclObject_richcompare(PyObject *self, PyObject *other, int op) |
957 | { |
958 | int result; |
959 | |
960 | /* neither argument should be NULL, unless something's gone wrong */ |
961 | if (self == NULL || other == NULL) { |
962 | PyErr_BadInternalCall(); |
963 | return NULL; |
964 | } |
965 | |
966 | /* both arguments should be instances of PyTclObject */ |
967 | if (!PyTclObject_Check(self) || !PyTclObject_Check(other)) { |
968 | Py_RETURN_NOTIMPLEMENTED; |
969 | } |
970 | |
971 | if (self == other) |
972 | /* fast path when self and other are identical */ |
973 | result = 0; |
974 | else |
975 | result = strcmp(Tcl_GetString(((PyTclObject *)self)->value), |
976 | Tcl_GetString(((PyTclObject *)other)->value)); |
977 | Py_RETURN_RICHCOMPARE(result, 0, op); |
978 | } |
979 | |
980 | PyDoc_STRVAR(get_typename__doc__, "name of the Tcl type" ); |
981 | |
982 | static PyObject* |
983 | get_typename(PyTclObject* obj, void* ignored) |
984 | { |
985 | return unicodeFromTclString(obj->value->typePtr->name); |
986 | } |
987 | |
988 | |
989 | static PyGetSetDef PyTclObject_getsetlist[] = { |
990 | {"typename" , (getter)get_typename, NULL, get_typename__doc__}, |
991 | {"string" , (getter)PyTclObject_string, NULL, |
992 | PyTclObject_string__doc__}, |
993 | {0}, |
994 | }; |
995 | |
996 | static PyType_Slot PyTclObject_Type_slots[] = { |
997 | {Py_tp_dealloc, (destructor)PyTclObject_dealloc}, |
998 | {Py_tp_repr, (reprfunc)PyTclObject_repr}, |
999 | {Py_tp_str, (reprfunc)PyTclObject_str}, |
1000 | {Py_tp_getattro, PyObject_GenericGetAttr}, |
1001 | {Py_tp_richcompare, PyTclObject_richcompare}, |
1002 | {Py_tp_getset, PyTclObject_getsetlist}, |
1003 | {0, 0} |
1004 | }; |
1005 | |
1006 | static PyType_Spec PyTclObject_Type_spec = { |
1007 | "_tkinter.Tcl_Obj" , |
1008 | sizeof(PyTclObject), |
1009 | 0, |
1010 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION, |
1011 | PyTclObject_Type_slots, |
1012 | }; |
1013 | |
1014 | |
1015 | #if SIZE_MAX > INT_MAX |
1016 | #define CHECK_STRING_LENGTH(s) do { \ |
1017 | if (s != NULL && strlen(s) >= INT_MAX) { \ |
1018 | PyErr_SetString(PyExc_OverflowError, "string is too long"); \ |
1019 | return NULL; \ |
1020 | } } while(0) |
1021 | #else |
1022 | #define CHECK_STRING_LENGTH(s) |
1023 | #endif |
1024 | |
1025 | #ifdef HAVE_LIBTOMMATH |
1026 | static Tcl_Obj* |
1027 | asBignumObj(PyObject *value) |
1028 | { |
1029 | Tcl_Obj *result; |
1030 | int neg; |
1031 | PyObject *hexstr; |
1032 | const char *hexchars; |
1033 | mp_int bigValue; |
1034 | |
1035 | neg = Py_SIZE(value) < 0; |
1036 | hexstr = _PyLong_Format(value, 16); |
1037 | if (hexstr == NULL) |
1038 | return NULL; |
1039 | hexchars = PyUnicode_AsUTF8(hexstr); |
1040 | if (hexchars == NULL) { |
1041 | Py_DECREF(hexstr); |
1042 | return NULL; |
1043 | } |
1044 | hexchars += neg + 2; /* skip sign and "0x" */ |
1045 | mp_init(&bigValue); |
1046 | if (mp_read_radix(&bigValue, hexchars, 16) != MP_OKAY) { |
1047 | mp_clear(&bigValue); |
1048 | Py_DECREF(hexstr); |
1049 | PyErr_NoMemory(); |
1050 | return NULL; |
1051 | } |
1052 | Py_DECREF(hexstr); |
1053 | bigValue.sign = neg ? MP_NEG : MP_ZPOS; |
1054 | result = Tcl_NewBignumObj(&bigValue); |
1055 | mp_clear(&bigValue); |
1056 | if (result == NULL) { |
1057 | PyErr_NoMemory(); |
1058 | return NULL; |
1059 | } |
1060 | return result; |
1061 | } |
1062 | #endif |
1063 | |
1064 | static Tcl_Obj* |
1065 | AsObj(PyObject *value) |
1066 | { |
1067 | Tcl_Obj *result; |
1068 | |
1069 | if (PyBytes_Check(value)) { |
1070 | if (PyBytes_GET_SIZE(value) >= INT_MAX) { |
1071 | PyErr_SetString(PyExc_OverflowError, "bytes object is too long" ); |
1072 | return NULL; |
1073 | } |
1074 | return Tcl_NewByteArrayObj((unsigned char *)PyBytes_AS_STRING(value), |
1075 | (int)PyBytes_GET_SIZE(value)); |
1076 | } |
1077 | |
1078 | if (PyBool_Check(value)) |
1079 | return Tcl_NewBooleanObj(PyObject_IsTrue(value)); |
1080 | |
1081 | if (PyLong_CheckExact(value)) { |
1082 | int overflow; |
1083 | long longValue; |
1084 | #ifdef TCL_WIDE_INT_TYPE |
1085 | Tcl_WideInt wideValue; |
1086 | #endif |
1087 | longValue = PyLong_AsLongAndOverflow(value, &overflow); |
1088 | if (!overflow) { |
1089 | return Tcl_NewLongObj(longValue); |
1090 | } |
1091 | /* If there is an overflow in the long conversion, |
1092 | fall through to wideInt handling. */ |
1093 | #ifdef TCL_WIDE_INT_TYPE |
1094 | if (_PyLong_AsByteArray((PyLongObject *)value, |
1095 | (unsigned char *)(void *)&wideValue, |
1096 | sizeof(wideValue), |
1097 | PY_LITTLE_ENDIAN, |
1098 | /* signed */ 1) == 0) { |
1099 | return Tcl_NewWideIntObj(wideValue); |
1100 | } |
1101 | PyErr_Clear(); |
1102 | #endif |
1103 | /* If there is an overflow in the wideInt conversion, |
1104 | fall through to bignum handling. */ |
1105 | #ifdef HAVE_LIBTOMMATH |
1106 | return asBignumObj(value); |
1107 | #endif |
1108 | /* If there is no wideInt or bignum support, |
1109 | fall through to default object handling. */ |
1110 | } |
1111 | |
1112 | if (PyFloat_Check(value)) |
1113 | return Tcl_NewDoubleObj(PyFloat_AS_DOUBLE(value)); |
1114 | |
1115 | if (PyTuple_Check(value) || PyList_Check(value)) { |
1116 | Tcl_Obj **argv; |
1117 | Py_ssize_t size, i; |
1118 | |
1119 | size = PySequence_Fast_GET_SIZE(value); |
1120 | if (size == 0) |
1121 | return Tcl_NewListObj(0, NULL); |
1122 | if (!CHECK_SIZE(size, sizeof(Tcl_Obj *))) { |
1123 | PyErr_SetString(PyExc_OverflowError, |
1124 | PyTuple_Check(value) ? "tuple is too long" : |
1125 | "list is too long" ); |
1126 | return NULL; |
1127 | } |
1128 | argv = (Tcl_Obj **) PyMem_Malloc(((size_t)size) * sizeof(Tcl_Obj *)); |
1129 | if (!argv) { |
1130 | PyErr_NoMemory(); |
1131 | return NULL; |
1132 | } |
1133 | for (i = 0; i < size; i++) |
1134 | argv[i] = AsObj(PySequence_Fast_GET_ITEM(value,i)); |
1135 | result = Tcl_NewListObj((int)size, argv); |
1136 | PyMem_Free(argv); |
1137 | return result; |
1138 | } |
1139 | |
1140 | if (PyUnicode_Check(value)) { |
1141 | if (PyUnicode_READY(value) == -1) |
1142 | return NULL; |
1143 | |
1144 | Py_ssize_t size = PyUnicode_GET_LENGTH(value); |
1145 | if (size == 0) { |
1146 | return Tcl_NewStringObj("" , 0); |
1147 | } |
1148 | if (!CHECK_SIZE(size, sizeof(Tcl_UniChar))) { |
1149 | PyErr_SetString(PyExc_OverflowError, "string is too long" ); |
1150 | return NULL; |
1151 | } |
1152 | if (PyUnicode_IS_ASCII(value)) { |
1153 | return Tcl_NewStringObj((const char *)PyUnicode_DATA(value), |
1154 | (int)size); |
1155 | } |
1156 | |
1157 | PyObject *encoded; |
1158 | #if USE_TCL_UNICODE |
1159 | if (sizeof(Tcl_UniChar) == 2) |
1160 | encoded = _PyUnicode_EncodeUTF16(value, |
1161 | "surrogatepass" , NATIVE_BYTEORDER); |
1162 | else if (sizeof(Tcl_UniChar) == 4) |
1163 | encoded = _PyUnicode_EncodeUTF32(value, |
1164 | "surrogatepass" , NATIVE_BYTEORDER); |
1165 | else |
1166 | Py_UNREACHABLE(); |
1167 | #else |
1168 | encoded = _PyUnicode_AsUTF8String(value, "surrogateescape" ); |
1169 | #endif |
1170 | if (!encoded) { |
1171 | return NULL; |
1172 | } |
1173 | size = PyBytes_GET_SIZE(encoded); |
1174 | if (size > INT_MAX) { |
1175 | Py_DECREF(encoded); |
1176 | PyErr_SetString(PyExc_OverflowError, "string is too long" ); |
1177 | return NULL; |
1178 | } |
1179 | #if USE_TCL_UNICODE |
1180 | result = Tcl_NewUnicodeObj((const Tcl_UniChar *)PyBytes_AS_STRING(encoded), |
1181 | (int)(size / sizeof(Tcl_UniChar))); |
1182 | #else |
1183 | result = Tcl_NewStringObj(PyBytes_AS_STRING(encoded), (int)size); |
1184 | #endif |
1185 | Py_DECREF(encoded); |
1186 | return result; |
1187 | } |
1188 | |
1189 | if (PyTclObject_Check(value)) { |
1190 | return ((PyTclObject*)value)->value; |
1191 | } |
1192 | |
1193 | { |
1194 | PyObject *v = PyObject_Str(value); |
1195 | if (!v) |
1196 | return 0; |
1197 | result = AsObj(v); |
1198 | Py_DECREF(v); |
1199 | return result; |
1200 | } |
1201 | } |
1202 | |
1203 | static PyObject * |
1204 | fromBoolean(TkappObject *tkapp, Tcl_Obj *value) |
1205 | { |
1206 | int boolValue; |
1207 | if (Tcl_GetBooleanFromObj(Tkapp_Interp(tkapp), value, &boolValue) == TCL_ERROR) |
1208 | return Tkinter_Error(tkapp); |
1209 | return PyBool_FromLong(boolValue); |
1210 | } |
1211 | |
1212 | static PyObject* |
1213 | fromWideIntObj(TkappObject *tkapp, Tcl_Obj *value) |
1214 | { |
1215 | Tcl_WideInt wideValue; |
1216 | if (Tcl_GetWideIntFromObj(Tkapp_Interp(tkapp), value, &wideValue) == TCL_OK) { |
1217 | if (sizeof(wideValue) <= SIZEOF_LONG_LONG) |
1218 | return PyLong_FromLongLong(wideValue); |
1219 | return _PyLong_FromByteArray((unsigned char *)(void *)&wideValue, |
1220 | sizeof(wideValue), |
1221 | PY_LITTLE_ENDIAN, |
1222 | /* signed */ 1); |
1223 | } |
1224 | return NULL; |
1225 | } |
1226 | |
1227 | #ifdef HAVE_LIBTOMMATH |
1228 | static PyObject* |
1229 | fromBignumObj(TkappObject *tkapp, Tcl_Obj *value) |
1230 | { |
1231 | mp_int bigValue; |
1232 | unsigned long numBytes; |
1233 | unsigned char *bytes; |
1234 | PyObject *res; |
1235 | |
1236 | if (Tcl_GetBignumFromObj(Tkapp_Interp(tkapp), value, &bigValue) != TCL_OK) |
1237 | return Tkinter_Error(tkapp); |
1238 | numBytes = mp_unsigned_bin_size(&bigValue); |
1239 | bytes = PyMem_Malloc(numBytes); |
1240 | if (bytes == NULL) { |
1241 | mp_clear(&bigValue); |
1242 | return PyErr_NoMemory(); |
1243 | } |
1244 | if (mp_to_unsigned_bin_n(&bigValue, bytes, |
1245 | &numBytes) != MP_OKAY) { |
1246 | mp_clear(&bigValue); |
1247 | PyMem_Free(bytes); |
1248 | return PyErr_NoMemory(); |
1249 | } |
1250 | res = _PyLong_FromByteArray(bytes, numBytes, |
1251 | /* big-endian */ 0, |
1252 | /* unsigned */ 0); |
1253 | PyMem_Free(bytes); |
1254 | if (res != NULL && bigValue.sign == MP_NEG) { |
1255 | PyObject *res2 = PyNumber_Negative(res); |
1256 | Py_DECREF(res); |
1257 | res = res2; |
1258 | } |
1259 | mp_clear(&bigValue); |
1260 | return res; |
1261 | } |
1262 | #endif |
1263 | |
1264 | static PyObject* |
1265 | FromObj(TkappObject *tkapp, Tcl_Obj *value) |
1266 | { |
1267 | PyObject *result = NULL; |
1268 | Tcl_Interp *interp = Tkapp_Interp(tkapp); |
1269 | |
1270 | if (value->typePtr == NULL) { |
1271 | return unicodeFromTclObj(value); |
1272 | } |
1273 | |
1274 | if (value->typePtr == tkapp->BooleanType || |
1275 | value->typePtr == tkapp->OldBooleanType) { |
1276 | return fromBoolean(tkapp, value); |
1277 | } |
1278 | |
1279 | if (value->typePtr == tkapp->ByteArrayType) { |
1280 | int size; |
1281 | char *data = (char*)Tcl_GetByteArrayFromObj(value, &size); |
1282 | return PyBytes_FromStringAndSize(data, size); |
1283 | } |
1284 | |
1285 | if (value->typePtr == tkapp->DoubleType) { |
1286 | return PyFloat_FromDouble(value->internalRep.doubleValue); |
1287 | } |
1288 | |
1289 | if (value->typePtr == tkapp->IntType) { |
1290 | long longValue; |
1291 | if (Tcl_GetLongFromObj(interp, value, &longValue) == TCL_OK) |
1292 | return PyLong_FromLong(longValue); |
1293 | /* If there is an error in the long conversion, |
1294 | fall through to wideInt handling. */ |
1295 | } |
1296 | |
1297 | if (value->typePtr == tkapp->IntType || |
1298 | value->typePtr == tkapp->WideIntType) { |
1299 | result = fromWideIntObj(tkapp, value); |
1300 | if (result != NULL || PyErr_Occurred()) |
1301 | return result; |
1302 | Tcl_ResetResult(interp); |
1303 | /* If there is an error in the wideInt conversion, |
1304 | fall through to bignum handling. */ |
1305 | } |
1306 | |
1307 | #ifdef HAVE_LIBTOMMATH |
1308 | if (value->typePtr == tkapp->IntType || |
1309 | value->typePtr == tkapp->WideIntType || |
1310 | value->typePtr == tkapp->BignumType) { |
1311 | return fromBignumObj(tkapp, value); |
1312 | } |
1313 | #endif |
1314 | |
1315 | if (value->typePtr == tkapp->ListType) { |
1316 | int size; |
1317 | int i, status; |
1318 | PyObject *elem; |
1319 | Tcl_Obj *tcl_elem; |
1320 | |
1321 | status = Tcl_ListObjLength(interp, value, &size); |
1322 | if (status == TCL_ERROR) |
1323 | return Tkinter_Error(tkapp); |
1324 | result = PyTuple_New(size); |
1325 | if (!result) |
1326 | return NULL; |
1327 | for (i = 0; i < size; i++) { |
1328 | status = Tcl_ListObjIndex(interp, value, i, &tcl_elem); |
1329 | if (status == TCL_ERROR) { |
1330 | Py_DECREF(result); |
1331 | return Tkinter_Error(tkapp); |
1332 | } |
1333 | elem = FromObj(tkapp, tcl_elem); |
1334 | if (!elem) { |
1335 | Py_DECREF(result); |
1336 | return NULL; |
1337 | } |
1338 | PyTuple_SET_ITEM(result, i, elem); |
1339 | } |
1340 | return result; |
1341 | } |
1342 | |
1343 | if (value->typePtr == tkapp->ProcBodyType) { |
1344 | /* fall through: return tcl object. */ |
1345 | } |
1346 | |
1347 | if (value->typePtr == tkapp->StringType) { |
1348 | return unicodeFromTclObj(value); |
1349 | } |
1350 | |
1351 | #if TK_HEX_VERSION >= 0x08050000 |
1352 | if (tkapp->BooleanType == NULL && |
1353 | strcmp(value->typePtr->name, "booleanString" ) == 0) { |
1354 | /* booleanString type is not registered in Tcl */ |
1355 | tkapp->BooleanType = value->typePtr; |
1356 | return fromBoolean(tkapp, value); |
1357 | } |
1358 | #endif |
1359 | |
1360 | #ifdef HAVE_LIBTOMMATH |
1361 | if (tkapp->BignumType == NULL && |
1362 | strcmp(value->typePtr->name, "bignum" ) == 0) { |
1363 | /* bignum type is not registered in Tcl */ |
1364 | tkapp->BignumType = value->typePtr; |
1365 | return fromBignumObj(tkapp, value); |
1366 | } |
1367 | #endif |
1368 | |
1369 | return newPyTclObject(value); |
1370 | } |
1371 | |
1372 | /* This mutex synchronizes inter-thread command calls. */ |
1373 | TCL_DECLARE_MUTEX(call_mutex) |
1374 | |
1375 | typedef struct Tkapp_CallEvent { |
1376 | Tcl_Event ev; /* Must be first */ |
1377 | TkappObject *self; |
1378 | PyObject *args; |
1379 | int flags; |
1380 | PyObject **res; |
1381 | PyObject **exc_type, **exc_value, **exc_tb; |
1382 | Tcl_Condition *done; |
1383 | } Tkapp_CallEvent; |
1384 | |
1385 | void |
1386 | Tkapp_CallDeallocArgs(Tcl_Obj** objv, Tcl_Obj** objStore, int objc) |
1387 | { |
1388 | int i; |
1389 | for (i = 0; i < objc; i++) |
1390 | Tcl_DecrRefCount(objv[i]); |
1391 | if (objv != objStore) |
1392 | PyMem_Free(objv); |
1393 | } |
1394 | |
1395 | /* Convert Python objects to Tcl objects. This must happen in the |
1396 | interpreter thread, which may or may not be the calling thread. */ |
1397 | |
1398 | static Tcl_Obj** |
1399 | Tkapp_CallArgs(PyObject *args, Tcl_Obj** objStore, int *pobjc) |
1400 | { |
1401 | Tcl_Obj **objv = objStore; |
1402 | Py_ssize_t objc = 0, i; |
1403 | if (args == NULL) |
1404 | /* do nothing */; |
1405 | |
1406 | else if (!(PyTuple_Check(args) || PyList_Check(args))) { |
1407 | objv[0] = AsObj(args); |
1408 | if (objv[0] == NULL) |
1409 | goto finally; |
1410 | objc = 1; |
1411 | Tcl_IncrRefCount(objv[0]); |
1412 | } |
1413 | else { |
1414 | objc = PySequence_Fast_GET_SIZE(args); |
1415 | |
1416 | if (objc > ARGSZ) { |
1417 | if (!CHECK_SIZE(objc, sizeof(Tcl_Obj *))) { |
1418 | PyErr_SetString(PyExc_OverflowError, |
1419 | PyTuple_Check(args) ? "tuple is too long" : |
1420 | "list is too long" ); |
1421 | return NULL; |
1422 | } |
1423 | objv = (Tcl_Obj **)PyMem_Malloc(((size_t)objc) * sizeof(Tcl_Obj *)); |
1424 | if (objv == NULL) { |
1425 | PyErr_NoMemory(); |
1426 | objc = 0; |
1427 | goto finally; |
1428 | } |
1429 | } |
1430 | |
1431 | for (i = 0; i < objc; i++) { |
1432 | PyObject *v = PySequence_Fast_GET_ITEM(args, i); |
1433 | if (v == Py_None) { |
1434 | objc = i; |
1435 | break; |
1436 | } |
1437 | objv[i] = AsObj(v); |
1438 | if (!objv[i]) { |
1439 | /* Reset objc, so it attempts to clear |
1440 | objects only up to i. */ |
1441 | objc = i; |
1442 | goto finally; |
1443 | } |
1444 | Tcl_IncrRefCount(objv[i]); |
1445 | } |
1446 | } |
1447 | *pobjc = (int)objc; |
1448 | return objv; |
1449 | finally: |
1450 | Tkapp_CallDeallocArgs(objv, objStore, (int)objc); |
1451 | return NULL; |
1452 | } |
1453 | |
1454 | /* Convert the results of a command call into a Python string. */ |
1455 | |
1456 | static PyObject * |
1457 | Tkapp_UnicodeResult(TkappObject *self) |
1458 | { |
1459 | return unicodeFromTclObj(Tcl_GetObjResult(self->interp)); |
1460 | } |
1461 | |
1462 | |
1463 | /* Convert the results of a command call into a Python objects. */ |
1464 | |
1465 | static PyObject * |
1466 | Tkapp_ObjectResult(TkappObject *self) |
1467 | { |
1468 | PyObject *res = NULL; |
1469 | Tcl_Obj *value = Tcl_GetObjResult(self->interp); |
1470 | if (self->wantobjects) { |
1471 | /* Not sure whether the IncrRef is necessary, but something |
1472 | may overwrite the interpreter result while we are |
1473 | converting it. */ |
1474 | Tcl_IncrRefCount(value); |
1475 | res = FromObj(self, value); |
1476 | Tcl_DecrRefCount(value); |
1477 | } else { |
1478 | res = unicodeFromTclObj(value); |
1479 | } |
1480 | return res; |
1481 | } |
1482 | |
1483 | |
1484 | /* Tkapp_CallProc is the event procedure that is executed in the context of |
1485 | the Tcl interpreter thread. Initially, it holds the Tcl lock, and doesn't |
1486 | hold the Python lock. */ |
1487 | |
1488 | static int |
1489 | Tkapp_CallProc(Tkapp_CallEvent *e, int flags) |
1490 | { |
1491 | Tcl_Obj *objStore[ARGSZ]; |
1492 | Tcl_Obj **objv; |
1493 | int objc; |
1494 | int i; |
1495 | ENTER_PYTHON |
1496 | objv = Tkapp_CallArgs(e->args, objStore, &objc); |
1497 | if (!objv) { |
1498 | PyErr_Fetch(e->exc_type, e->exc_value, e->exc_tb); |
1499 | *(e->res) = NULL; |
1500 | } |
1501 | LEAVE_PYTHON |
1502 | if (!objv) |
1503 | goto done; |
1504 | i = Tcl_EvalObjv(e->self->interp, objc, objv, e->flags); |
1505 | ENTER_PYTHON |
1506 | if (i == TCL_ERROR) { |
1507 | *(e->res) = Tkinter_Error(e->self); |
1508 | } |
1509 | else { |
1510 | *(e->res) = Tkapp_ObjectResult(e->self); |
1511 | } |
1512 | if (*(e->res) == NULL) { |
1513 | PyErr_Fetch(e->exc_type, e->exc_value, e->exc_tb); |
1514 | } |
1515 | LEAVE_PYTHON |
1516 | |
1517 | Tkapp_CallDeallocArgs(objv, objStore, objc); |
1518 | done: |
1519 | /* Wake up calling thread. */ |
1520 | Tcl_MutexLock(&call_mutex); |
1521 | Tcl_ConditionNotify(e->done); |
1522 | Tcl_MutexUnlock(&call_mutex); |
1523 | return 1; |
1524 | } |
1525 | |
1526 | |
1527 | /* This is the main entry point for calling a Tcl command. |
1528 | It supports three cases, with regard to threading: |
1529 | 1. Tcl is not threaded: Must have the Tcl lock, then can invoke command in |
1530 | the context of the calling thread. |
1531 | 2. Tcl is threaded, caller of the command is in the interpreter thread: |
1532 | Execute the command in the calling thread. Since the Tcl lock will |
1533 | not be used, we can merge that with case 1. |
1534 | 3. Tcl is threaded, caller is in a different thread: Must queue an event to |
1535 | the interpreter thread. Allocation of Tcl objects needs to occur in the |
1536 | interpreter thread, so we ship the PyObject* args to the target thread, |
1537 | and perform processing there. */ |
1538 | |
1539 | static PyObject * |
1540 | Tkapp_Call(PyObject *selfptr, PyObject *args) |
1541 | { |
1542 | Tcl_Obj *objStore[ARGSZ]; |
1543 | Tcl_Obj **objv = NULL; |
1544 | int objc, i; |
1545 | PyObject *res = NULL; |
1546 | TkappObject *self = (TkappObject*)selfptr; |
1547 | int flags = TCL_EVAL_DIRECT | TCL_EVAL_GLOBAL; |
1548 | |
1549 | /* If args is a single tuple, replace with contents of tuple */ |
1550 | if (PyTuple_GET_SIZE(args) == 1) { |
1551 | PyObject *item = PyTuple_GET_ITEM(args, 0); |
1552 | if (PyTuple_Check(item)) |
1553 | args = item; |
1554 | } |
1555 | if (self->threaded && self->thread_id != Tcl_GetCurrentThread()) { |
1556 | /* We cannot call the command directly. Instead, we must |
1557 | marshal the parameters to the interpreter thread. */ |
1558 | Tkapp_CallEvent *ev; |
1559 | Tcl_Condition cond = NULL; |
1560 | PyObject *exc_type, *exc_value, *exc_tb; |
1561 | if (!WaitForMainloop(self)) |
1562 | return NULL; |
1563 | ev = (Tkapp_CallEvent*)attemptckalloc(sizeof(Tkapp_CallEvent)); |
1564 | if (ev == NULL) { |
1565 | PyErr_NoMemory(); |
1566 | return NULL; |
1567 | } |
1568 | ev->ev.proc = (Tcl_EventProc*)Tkapp_CallProc; |
1569 | ev->self = self; |
1570 | ev->args = args; |
1571 | ev->res = &res; |
1572 | ev->exc_type = &exc_type; |
1573 | ev->exc_value = &exc_value; |
1574 | ev->exc_tb = &exc_tb; |
1575 | ev->done = &cond; |
1576 | |
1577 | Tkapp_ThreadSend(self, (Tcl_Event*)ev, &cond, &call_mutex); |
1578 | |
1579 | if (res == NULL) { |
1580 | if (exc_type) |
1581 | PyErr_Restore(exc_type, exc_value, exc_tb); |
1582 | else |
1583 | PyErr_SetObject(Tkinter_TclError, exc_value); |
1584 | } |
1585 | Tcl_ConditionFinalize(&cond); |
1586 | } |
1587 | else |
1588 | { |
1589 | |
1590 | objv = Tkapp_CallArgs(args, objStore, &objc); |
1591 | if (!objv) |
1592 | return NULL; |
1593 | |
1594 | ENTER_TCL |
1595 | |
1596 | i = Tcl_EvalObjv(self->interp, objc, objv, flags); |
1597 | |
1598 | ENTER_OVERLAP |
1599 | |
1600 | if (i == TCL_ERROR) |
1601 | Tkinter_Error(self); |
1602 | else |
1603 | res = Tkapp_ObjectResult(self); |
1604 | |
1605 | LEAVE_OVERLAP_TCL |
1606 | |
1607 | Tkapp_CallDeallocArgs(objv, objStore, objc); |
1608 | } |
1609 | return res; |
1610 | } |
1611 | |
1612 | |
1613 | /*[clinic input] |
1614 | _tkinter.tkapp.eval |
1615 | |
1616 | script: str |
1617 | / |
1618 | |
1619 | [clinic start generated code]*/ |
1620 | |
1621 | static PyObject * |
1622 | _tkinter_tkapp_eval_impl(TkappObject *self, const char *script) |
1623 | /*[clinic end generated code: output=24b79831f700dea0 input=481484123a455f22]*/ |
1624 | { |
1625 | PyObject *res = NULL; |
1626 | int err; |
1627 | |
1628 | CHECK_STRING_LENGTH(script); |
1629 | CHECK_TCL_APPARTMENT; |
1630 | |
1631 | ENTER_TCL |
1632 | err = Tcl_Eval(Tkapp_Interp(self), script); |
1633 | ENTER_OVERLAP |
1634 | if (err == TCL_ERROR) |
1635 | res = Tkinter_Error(self); |
1636 | else |
1637 | res = Tkapp_UnicodeResult(self); |
1638 | LEAVE_OVERLAP_TCL |
1639 | return res; |
1640 | } |
1641 | |
1642 | /*[clinic input] |
1643 | _tkinter.tkapp.evalfile |
1644 | |
1645 | fileName: str |
1646 | / |
1647 | |
1648 | [clinic start generated code]*/ |
1649 | |
1650 | static PyObject * |
1651 | _tkinter_tkapp_evalfile_impl(TkappObject *self, const char *fileName) |
1652 | /*[clinic end generated code: output=63be88dcee4f11d3 input=873ab707e5e947e1]*/ |
1653 | { |
1654 | PyObject *res = NULL; |
1655 | int err; |
1656 | |
1657 | CHECK_STRING_LENGTH(fileName); |
1658 | CHECK_TCL_APPARTMENT; |
1659 | |
1660 | ENTER_TCL |
1661 | err = Tcl_EvalFile(Tkapp_Interp(self), fileName); |
1662 | ENTER_OVERLAP |
1663 | if (err == TCL_ERROR) |
1664 | res = Tkinter_Error(self); |
1665 | else |
1666 | res = Tkapp_UnicodeResult(self); |
1667 | LEAVE_OVERLAP_TCL |
1668 | return res; |
1669 | } |
1670 | |
1671 | /*[clinic input] |
1672 | _tkinter.tkapp.record |
1673 | |
1674 | script: str |
1675 | / |
1676 | |
1677 | [clinic start generated code]*/ |
1678 | |
1679 | static PyObject * |
1680 | _tkinter_tkapp_record_impl(TkappObject *self, const char *script) |
1681 | /*[clinic end generated code: output=0ffe08a0061730df input=c0b0db5a21412cac]*/ |
1682 | { |
1683 | PyObject *res = NULL; |
1684 | int err; |
1685 | |
1686 | CHECK_STRING_LENGTH(script); |
1687 | CHECK_TCL_APPARTMENT; |
1688 | |
1689 | ENTER_TCL |
1690 | err = Tcl_RecordAndEval(Tkapp_Interp(self), script, TCL_NO_EVAL); |
1691 | ENTER_OVERLAP |
1692 | if (err == TCL_ERROR) |
1693 | res = Tkinter_Error(self); |
1694 | else |
1695 | res = Tkapp_UnicodeResult(self); |
1696 | LEAVE_OVERLAP_TCL |
1697 | return res; |
1698 | } |
1699 | |
1700 | /*[clinic input] |
1701 | _tkinter.tkapp.adderrorinfo |
1702 | |
1703 | msg: str |
1704 | / |
1705 | |
1706 | [clinic start generated code]*/ |
1707 | |
1708 | static PyObject * |
1709 | _tkinter_tkapp_adderrorinfo_impl(TkappObject *self, const char *msg) |
1710 | /*[clinic end generated code: output=52162eaca2ee53cb input=f4b37aec7c7e8c77]*/ |
1711 | { |
1712 | CHECK_STRING_LENGTH(msg); |
1713 | CHECK_TCL_APPARTMENT; |
1714 | |
1715 | ENTER_TCL |
1716 | Tcl_AddErrorInfo(Tkapp_Interp(self), msg); |
1717 | LEAVE_TCL |
1718 | |
1719 | Py_RETURN_NONE; |
1720 | } |
1721 | |
1722 | |
1723 | |
1724 | /** Tcl Variable **/ |
1725 | |
1726 | typedef PyObject* (*EventFunc)(TkappObject *, PyObject *, int); |
1727 | |
1728 | TCL_DECLARE_MUTEX(var_mutex) |
1729 | |
1730 | typedef struct VarEvent { |
1731 | Tcl_Event ev; /* must be first */ |
1732 | TkappObject *self; |
1733 | PyObject *args; |
1734 | int flags; |
1735 | EventFunc func; |
1736 | PyObject **res; |
1737 | PyObject **exc_type; |
1738 | PyObject **exc_val; |
1739 | Tcl_Condition *cond; |
1740 | } VarEvent; |
1741 | |
1742 | /*[python] |
1743 | |
1744 | class varname_converter(CConverter): |
1745 | type = 'const char *' |
1746 | converter = 'varname_converter' |
1747 | |
1748 | [python]*/ |
1749 | /*[python checksum: da39a3ee5e6b4b0d3255bfef95601890afd80709]*/ |
1750 | |
1751 | static int |
1752 | varname_converter(PyObject *in, void *_out) |
1753 | { |
1754 | const char *s; |
1755 | const char **out = (const char**)_out; |
1756 | if (PyBytes_Check(in)) { |
1757 | if (PyBytes_GET_SIZE(in) > INT_MAX) { |
1758 | PyErr_SetString(PyExc_OverflowError, "bytes object is too long" ); |
1759 | return 0; |
1760 | } |
1761 | s = PyBytes_AS_STRING(in); |
1762 | if (strlen(s) != (size_t)PyBytes_GET_SIZE(in)) { |
1763 | PyErr_SetString(PyExc_ValueError, "embedded null byte" ); |
1764 | return 0; |
1765 | } |
1766 | *out = s; |
1767 | return 1; |
1768 | } |
1769 | if (PyUnicode_Check(in)) { |
1770 | Py_ssize_t size; |
1771 | s = PyUnicode_AsUTF8AndSize(in, &size); |
1772 | if (s == NULL) { |
1773 | return 0; |
1774 | } |
1775 | if (size > INT_MAX) { |
1776 | PyErr_SetString(PyExc_OverflowError, "string is too long" ); |
1777 | return 0; |
1778 | } |
1779 | if (strlen(s) != (size_t)size) { |
1780 | PyErr_SetString(PyExc_ValueError, "embedded null character" ); |
1781 | return 0; |
1782 | } |
1783 | *out = s; |
1784 | return 1; |
1785 | } |
1786 | if (PyTclObject_Check(in)) { |
1787 | *out = Tcl_GetString(((PyTclObject *)in)->value); |
1788 | return 1; |
1789 | } |
1790 | PyErr_Format(PyExc_TypeError, |
1791 | "must be str, bytes or Tcl_Obj, not %.50s" , |
1792 | Py_TYPE(in)->tp_name); |
1793 | return 0; |
1794 | } |
1795 | |
1796 | |
1797 | static void |
1798 | var_perform(VarEvent *ev) |
1799 | { |
1800 | *(ev->res) = ev->func(ev->self, ev->args, ev->flags); |
1801 | if (!*(ev->res)) { |
1802 | PyObject *exc, *val, *tb; |
1803 | PyErr_Fetch(&exc, &val, &tb); |
1804 | PyErr_NormalizeException(&exc, &val, &tb); |
1805 | *(ev->exc_type) = exc; |
1806 | *(ev->exc_val) = val; |
1807 | Py_XDECREF(tb); |
1808 | } |
1809 | |
1810 | } |
1811 | |
1812 | static int |
1813 | var_proc(VarEvent* ev, int flags) |
1814 | { |
1815 | ENTER_PYTHON |
1816 | var_perform(ev); |
1817 | Tcl_MutexLock(&var_mutex); |
1818 | Tcl_ConditionNotify(ev->cond); |
1819 | Tcl_MutexUnlock(&var_mutex); |
1820 | LEAVE_PYTHON |
1821 | return 1; |
1822 | } |
1823 | |
1824 | |
1825 | static PyObject* |
1826 | var_invoke(EventFunc func, PyObject *selfptr, PyObject *args, int flags) |
1827 | { |
1828 | TkappObject *self = (TkappObject*)selfptr; |
1829 | if (self->threaded && self->thread_id != Tcl_GetCurrentThread()) { |
1830 | VarEvent *ev; |
1831 | PyObject *res, *exc_type, *exc_val; |
1832 | Tcl_Condition cond = NULL; |
1833 | |
1834 | /* The current thread is not the interpreter thread. Marshal |
1835 | the call to the interpreter thread, then wait for |
1836 | completion. */ |
1837 | if (!WaitForMainloop(self)) |
1838 | return NULL; |
1839 | |
1840 | ev = (VarEvent*)attemptckalloc(sizeof(VarEvent)); |
1841 | if (ev == NULL) { |
1842 | PyErr_NoMemory(); |
1843 | return NULL; |
1844 | } |
1845 | ev->self = self; |
1846 | ev->args = args; |
1847 | ev->flags = flags; |
1848 | ev->func = func; |
1849 | ev->res = &res; |
1850 | ev->exc_type = &exc_type; |
1851 | ev->exc_val = &exc_val; |
1852 | ev->cond = &cond; |
1853 | ev->ev.proc = (Tcl_EventProc*)var_proc; |
1854 | Tkapp_ThreadSend(self, (Tcl_Event*)ev, &cond, &var_mutex); |
1855 | Tcl_ConditionFinalize(&cond); |
1856 | if (!res) { |
1857 | PyErr_SetObject(exc_type, exc_val); |
1858 | Py_DECREF(exc_type); |
1859 | Py_DECREF(exc_val); |
1860 | return NULL; |
1861 | } |
1862 | return res; |
1863 | } |
1864 | /* Tcl is not threaded, or this is the interpreter thread. */ |
1865 | return func(self, args, flags); |
1866 | } |
1867 | |
1868 | static PyObject * |
1869 | SetVar(TkappObject *self, PyObject *args, int flags) |
1870 | { |
1871 | const char *name1, *name2; |
1872 | PyObject *newValue; |
1873 | PyObject *res = NULL; |
1874 | Tcl_Obj *newval, *ok; |
1875 | |
1876 | switch (PyTuple_GET_SIZE(args)) { |
1877 | case 2: |
1878 | if (!PyArg_ParseTuple(args, "O&O:setvar" , |
1879 | varname_converter, &name1, &newValue)) |
1880 | return NULL; |
1881 | /* XXX Acquire tcl lock??? */ |
1882 | newval = AsObj(newValue); |
1883 | if (newval == NULL) |
1884 | return NULL; |
1885 | ENTER_TCL |
1886 | ok = Tcl_SetVar2Ex(Tkapp_Interp(self), name1, NULL, |
1887 | newval, flags); |
1888 | ENTER_OVERLAP |
1889 | if (!ok) |
1890 | Tkinter_Error(self); |
1891 | else { |
1892 | res = Py_None; |
1893 | Py_INCREF(res); |
1894 | } |
1895 | LEAVE_OVERLAP_TCL |
1896 | break; |
1897 | case 3: |
1898 | if (!PyArg_ParseTuple(args, "ssO:setvar" , |
1899 | &name1, &name2, &newValue)) |
1900 | return NULL; |
1901 | CHECK_STRING_LENGTH(name1); |
1902 | CHECK_STRING_LENGTH(name2); |
1903 | /* XXX must hold tcl lock already??? */ |
1904 | newval = AsObj(newValue); |
1905 | ENTER_TCL |
1906 | ok = Tcl_SetVar2Ex(Tkapp_Interp(self), name1, name2, newval, flags); |
1907 | ENTER_OVERLAP |
1908 | if (!ok) |
1909 | Tkinter_Error(self); |
1910 | else { |
1911 | res = Py_None; |
1912 | Py_INCREF(res); |
1913 | } |
1914 | LEAVE_OVERLAP_TCL |
1915 | break; |
1916 | default: |
1917 | PyErr_SetString(PyExc_TypeError, "setvar requires 2 to 3 arguments" ); |
1918 | return NULL; |
1919 | } |
1920 | return res; |
1921 | } |
1922 | |
1923 | static PyObject * |
1924 | Tkapp_SetVar(PyObject *self, PyObject *args) |
1925 | { |
1926 | return var_invoke(SetVar, self, args, TCL_LEAVE_ERR_MSG); |
1927 | } |
1928 | |
1929 | static PyObject * |
1930 | Tkapp_GlobalSetVar(PyObject *self, PyObject *args) |
1931 | { |
1932 | return var_invoke(SetVar, self, args, TCL_LEAVE_ERR_MSG | TCL_GLOBAL_ONLY); |
1933 | } |
1934 | |
1935 | |
1936 | |
1937 | static PyObject * |
1938 | GetVar(TkappObject *self, PyObject *args, int flags) |
1939 | { |
1940 | const char *name1, *name2=NULL; |
1941 | PyObject *res = NULL; |
1942 | Tcl_Obj *tres; |
1943 | |
1944 | if (!PyArg_ParseTuple(args, "O&|s:getvar" , |
1945 | varname_converter, &name1, &name2)) |
1946 | return NULL; |
1947 | |
1948 | CHECK_STRING_LENGTH(name2); |
1949 | ENTER_TCL |
1950 | tres = Tcl_GetVar2Ex(Tkapp_Interp(self), name1, name2, flags); |
1951 | ENTER_OVERLAP |
1952 | if (tres == NULL) { |
1953 | Tkinter_Error(self); |
1954 | } else { |
1955 | if (self->wantobjects) { |
1956 | res = FromObj(self, tres); |
1957 | } |
1958 | else { |
1959 | res = unicodeFromTclObj(tres); |
1960 | } |
1961 | } |
1962 | LEAVE_OVERLAP_TCL |
1963 | return res; |
1964 | } |
1965 | |
1966 | static PyObject * |
1967 | Tkapp_GetVar(PyObject *self, PyObject *args) |
1968 | { |
1969 | return var_invoke(GetVar, self, args, TCL_LEAVE_ERR_MSG); |
1970 | } |
1971 | |
1972 | static PyObject * |
1973 | Tkapp_GlobalGetVar(PyObject *self, PyObject *args) |
1974 | { |
1975 | return var_invoke(GetVar, self, args, TCL_LEAVE_ERR_MSG | TCL_GLOBAL_ONLY); |
1976 | } |
1977 | |
1978 | |
1979 | |
1980 | static PyObject * |
1981 | UnsetVar(TkappObject *self, PyObject *args, int flags) |
1982 | { |
1983 | char *name1, *name2=NULL; |
1984 | int code; |
1985 | PyObject *res = NULL; |
1986 | |
1987 | if (!PyArg_ParseTuple(args, "s|s:unsetvar" , &name1, &name2)) |
1988 | return NULL; |
1989 | |
1990 | CHECK_STRING_LENGTH(name1); |
1991 | CHECK_STRING_LENGTH(name2); |
1992 | ENTER_TCL |
1993 | code = Tcl_UnsetVar2(Tkapp_Interp(self), name1, name2, flags); |
1994 | ENTER_OVERLAP |
1995 | if (code == TCL_ERROR) |
1996 | res = Tkinter_Error(self); |
1997 | else { |
1998 | Py_INCREF(Py_None); |
1999 | res = Py_None; |
2000 | } |
2001 | LEAVE_OVERLAP_TCL |
2002 | return res; |
2003 | } |
2004 | |
2005 | static PyObject * |
2006 | Tkapp_UnsetVar(PyObject *self, PyObject *args) |
2007 | { |
2008 | return var_invoke(UnsetVar, self, args, TCL_LEAVE_ERR_MSG); |
2009 | } |
2010 | |
2011 | static PyObject * |
2012 | Tkapp_GlobalUnsetVar(PyObject *self, PyObject *args) |
2013 | { |
2014 | return var_invoke(UnsetVar, self, args, |
2015 | TCL_LEAVE_ERR_MSG | TCL_GLOBAL_ONLY); |
2016 | } |
2017 | |
2018 | |
2019 | |
2020 | /** Tcl to Python **/ |
2021 | |
2022 | /*[clinic input] |
2023 | _tkinter.tkapp.getint |
2024 | |
2025 | arg: object |
2026 | / |
2027 | |
2028 | [clinic start generated code]*/ |
2029 | |
2030 | static PyObject * |
2031 | _tkinter_tkapp_getint(TkappObject *self, PyObject *arg) |
2032 | /*[clinic end generated code: output=88cf293fae307cfe input=034026997c5b91f8]*/ |
2033 | { |
2034 | char *s; |
2035 | Tcl_Obj *value; |
2036 | PyObject *result; |
2037 | |
2038 | if (PyLong_Check(arg)) { |
2039 | Py_INCREF(arg); |
2040 | return arg; |
2041 | } |
2042 | |
2043 | if (PyTclObject_Check(arg)) { |
2044 | value = ((PyTclObject*)arg)->value; |
2045 | Tcl_IncrRefCount(value); |
2046 | } |
2047 | else { |
2048 | if (!PyArg_Parse(arg, "s:getint" , &s)) |
2049 | return NULL; |
2050 | CHECK_STRING_LENGTH(s); |
2051 | value = Tcl_NewStringObj(s, -1); |
2052 | if (value == NULL) |
2053 | return Tkinter_Error(self); |
2054 | } |
2055 | /* Don't use Tcl_GetInt() because it returns ambiguous result for value |
2056 | in ranges -2**32..-2**31-1 and 2**31..2**32-1 (on 32-bit platform). |
2057 | |
2058 | Prefer bignum because Tcl_GetWideIntFromObj returns ambiguous result for |
2059 | value in ranges -2**64..-2**63-1 and 2**63..2**64-1 (on 32-bit platform). |
2060 | */ |
2061 | #ifdef HAVE_LIBTOMMATH |
2062 | result = fromBignumObj(self, value); |
2063 | #else |
2064 | result = fromWideIntObj(self, value); |
2065 | #endif |
2066 | Tcl_DecrRefCount(value); |
2067 | if (result != NULL || PyErr_Occurred()) |
2068 | return result; |
2069 | return Tkinter_Error(self); |
2070 | } |
2071 | |
2072 | /*[clinic input] |
2073 | _tkinter.tkapp.getdouble |
2074 | |
2075 | arg: object |
2076 | / |
2077 | |
2078 | [clinic start generated code]*/ |
2079 | |
2080 | static PyObject * |
2081 | _tkinter_tkapp_getdouble(TkappObject *self, PyObject *arg) |
2082 | /*[clinic end generated code: output=c52b138bd8b956b9 input=22015729ce9ef7f8]*/ |
2083 | { |
2084 | char *s; |
2085 | double v; |
2086 | |
2087 | if (PyFloat_Check(arg)) { |
2088 | Py_INCREF(arg); |
2089 | return arg; |
2090 | } |
2091 | |
2092 | if (PyNumber_Check(arg)) { |
2093 | return PyNumber_Float(arg); |
2094 | } |
2095 | |
2096 | if (PyTclObject_Check(arg)) { |
2097 | if (Tcl_GetDoubleFromObj(Tkapp_Interp(self), |
2098 | ((PyTclObject*)arg)->value, |
2099 | &v) == TCL_ERROR) |
2100 | return Tkinter_Error(self); |
2101 | return PyFloat_FromDouble(v); |
2102 | } |
2103 | |
2104 | if (!PyArg_Parse(arg, "s:getdouble" , &s)) |
2105 | return NULL; |
2106 | CHECK_STRING_LENGTH(s); |
2107 | if (Tcl_GetDouble(Tkapp_Interp(self), s, &v) == TCL_ERROR) |
2108 | return Tkinter_Error(self); |
2109 | return PyFloat_FromDouble(v); |
2110 | } |
2111 | |
2112 | /*[clinic input] |
2113 | _tkinter.tkapp.getboolean |
2114 | |
2115 | arg: object |
2116 | / |
2117 | |
2118 | [clinic start generated code]*/ |
2119 | |
2120 | static PyObject * |
2121 | _tkinter_tkapp_getboolean(TkappObject *self, PyObject *arg) |
2122 | /*[clinic end generated code: output=726a9ae445821d91 input=7f11248ef8f8776e]*/ |
2123 | { |
2124 | char *s; |
2125 | int v; |
2126 | |
2127 | if (PyLong_Check(arg)) { /* int or bool */ |
2128 | return PyBool_FromLong(Py_SIZE(arg) != 0); |
2129 | } |
2130 | |
2131 | if (PyTclObject_Check(arg)) { |
2132 | if (Tcl_GetBooleanFromObj(Tkapp_Interp(self), |
2133 | ((PyTclObject*)arg)->value, |
2134 | &v) == TCL_ERROR) |
2135 | return Tkinter_Error(self); |
2136 | return PyBool_FromLong(v); |
2137 | } |
2138 | |
2139 | if (!PyArg_Parse(arg, "s:getboolean" , &s)) |
2140 | return NULL; |
2141 | CHECK_STRING_LENGTH(s); |
2142 | if (Tcl_GetBoolean(Tkapp_Interp(self), s, &v) == TCL_ERROR) |
2143 | return Tkinter_Error(self); |
2144 | return PyBool_FromLong(v); |
2145 | } |
2146 | |
2147 | /*[clinic input] |
2148 | _tkinter.tkapp.exprstring |
2149 | |
2150 | s: str |
2151 | / |
2152 | |
2153 | [clinic start generated code]*/ |
2154 | |
2155 | static PyObject * |
2156 | _tkinter_tkapp_exprstring_impl(TkappObject *self, const char *s) |
2157 | /*[clinic end generated code: output=beda323d3ed0abb1 input=fa78f751afb2f21b]*/ |
2158 | { |
2159 | PyObject *res = NULL; |
2160 | int retval; |
2161 | |
2162 | CHECK_STRING_LENGTH(s); |
2163 | CHECK_TCL_APPARTMENT; |
2164 | |
2165 | ENTER_TCL |
2166 | retval = Tcl_ExprString(Tkapp_Interp(self), s); |
2167 | ENTER_OVERLAP |
2168 | if (retval == TCL_ERROR) |
2169 | res = Tkinter_Error(self); |
2170 | else |
2171 | res = Tkapp_UnicodeResult(self); |
2172 | LEAVE_OVERLAP_TCL |
2173 | return res; |
2174 | } |
2175 | |
2176 | /*[clinic input] |
2177 | _tkinter.tkapp.exprlong |
2178 | |
2179 | s: str |
2180 | / |
2181 | |
2182 | [clinic start generated code]*/ |
2183 | |
2184 | static PyObject * |
2185 | _tkinter_tkapp_exprlong_impl(TkappObject *self, const char *s) |
2186 | /*[clinic end generated code: output=5d6a46b63c6ebcf9 input=11bd7eee0c57b4dc]*/ |
2187 | { |
2188 | PyObject *res = NULL; |
2189 | int retval; |
2190 | long v; |
2191 | |
2192 | CHECK_STRING_LENGTH(s); |
2193 | CHECK_TCL_APPARTMENT; |
2194 | |
2195 | ENTER_TCL |
2196 | retval = Tcl_ExprLong(Tkapp_Interp(self), s, &v); |
2197 | ENTER_OVERLAP |
2198 | if (retval == TCL_ERROR) |
2199 | res = Tkinter_Error(self); |
2200 | else |
2201 | res = PyLong_FromLong(v); |
2202 | LEAVE_OVERLAP_TCL |
2203 | return res; |
2204 | } |
2205 | |
2206 | /*[clinic input] |
2207 | _tkinter.tkapp.exprdouble |
2208 | |
2209 | s: str |
2210 | / |
2211 | |
2212 | [clinic start generated code]*/ |
2213 | |
2214 | static PyObject * |
2215 | _tkinter_tkapp_exprdouble_impl(TkappObject *self, const char *s) |
2216 | /*[clinic end generated code: output=ff78df1081ea4158 input=ff02bc11798832d5]*/ |
2217 | { |
2218 | PyObject *res = NULL; |
2219 | double v; |
2220 | int retval; |
2221 | |
2222 | CHECK_STRING_LENGTH(s); |
2223 | CHECK_TCL_APPARTMENT; |
2224 | ENTER_TCL |
2225 | retval = Tcl_ExprDouble(Tkapp_Interp(self), s, &v); |
2226 | ENTER_OVERLAP |
2227 | if (retval == TCL_ERROR) |
2228 | res = Tkinter_Error(self); |
2229 | else |
2230 | res = PyFloat_FromDouble(v); |
2231 | LEAVE_OVERLAP_TCL |
2232 | return res; |
2233 | } |
2234 | |
2235 | /*[clinic input] |
2236 | _tkinter.tkapp.exprboolean |
2237 | |
2238 | s: str |
2239 | / |
2240 | |
2241 | [clinic start generated code]*/ |
2242 | |
2243 | static PyObject * |
2244 | _tkinter_tkapp_exprboolean_impl(TkappObject *self, const char *s) |
2245 | /*[clinic end generated code: output=8b28038c22887311 input=c8c66022bdb8d5d3]*/ |
2246 | { |
2247 | PyObject *res = NULL; |
2248 | int retval; |
2249 | int v; |
2250 | |
2251 | CHECK_STRING_LENGTH(s); |
2252 | CHECK_TCL_APPARTMENT; |
2253 | ENTER_TCL |
2254 | retval = Tcl_ExprBoolean(Tkapp_Interp(self), s, &v); |
2255 | ENTER_OVERLAP |
2256 | if (retval == TCL_ERROR) |
2257 | res = Tkinter_Error(self); |
2258 | else |
2259 | res = PyLong_FromLong(v); |
2260 | LEAVE_OVERLAP_TCL |
2261 | return res; |
2262 | } |
2263 | |
2264 | |
2265 | |
2266 | /*[clinic input] |
2267 | _tkinter.tkapp.splitlist |
2268 | |
2269 | arg: object |
2270 | / |
2271 | |
2272 | [clinic start generated code]*/ |
2273 | |
2274 | static PyObject * |
2275 | _tkinter_tkapp_splitlist(TkappObject *self, PyObject *arg) |
2276 | /*[clinic end generated code: output=13b51d34386d36fb input=2b2e13351e3c0b53]*/ |
2277 | { |
2278 | char *list; |
2279 | int argc; |
2280 | const char **argv; |
2281 | PyObject *v; |
2282 | int i; |
2283 | |
2284 | if (PyTclObject_Check(arg)) { |
2285 | int objc; |
2286 | Tcl_Obj **objv; |
2287 | if (Tcl_ListObjGetElements(Tkapp_Interp(self), |
2288 | ((PyTclObject*)arg)->value, |
2289 | &objc, &objv) == TCL_ERROR) { |
2290 | return Tkinter_Error(self); |
2291 | } |
2292 | if (!(v = PyTuple_New(objc))) |
2293 | return NULL; |
2294 | for (i = 0; i < objc; i++) { |
2295 | PyObject *s = FromObj(self, objv[i]); |
2296 | if (!s) { |
2297 | Py_DECREF(v); |
2298 | return NULL; |
2299 | } |
2300 | PyTuple_SET_ITEM(v, i, s); |
2301 | } |
2302 | return v; |
2303 | } |
2304 | if (PyTuple_Check(arg)) { |
2305 | Py_INCREF(arg); |
2306 | return arg; |
2307 | } |
2308 | if (PyList_Check(arg)) { |
2309 | return PySequence_Tuple(arg); |
2310 | } |
2311 | |
2312 | if (!PyArg_Parse(arg, "et:splitlist" , "utf-8" , &list)) |
2313 | return NULL; |
2314 | |
2315 | if (strlen(list) >= INT_MAX) { |
2316 | PyErr_SetString(PyExc_OverflowError, "string is too long" ); |
2317 | PyMem_Free(list); |
2318 | return NULL; |
2319 | } |
2320 | if (Tcl_SplitList(Tkapp_Interp(self), list, |
2321 | &argc, &argv) == TCL_ERROR) { |
2322 | PyMem_Free(list); |
2323 | return Tkinter_Error(self); |
2324 | } |
2325 | |
2326 | if (!(v = PyTuple_New(argc))) |
2327 | goto finally; |
2328 | |
2329 | for (i = 0; i < argc; i++) { |
2330 | PyObject *s = unicodeFromTclString(argv[i]); |
2331 | if (!s) { |
2332 | Py_DECREF(v); |
2333 | v = NULL; |
2334 | goto finally; |
2335 | } |
2336 | PyTuple_SET_ITEM(v, i, s); |
2337 | } |
2338 | |
2339 | finally: |
2340 | ckfree(FREECAST argv); |
2341 | PyMem_Free(list); |
2342 | return v; |
2343 | } |
2344 | |
2345 | /*[clinic input] |
2346 | _tkinter.tkapp.split |
2347 | |
2348 | arg: object |
2349 | / |
2350 | |
2351 | [clinic start generated code]*/ |
2352 | |
2353 | static PyObject * |
2354 | _tkinter_tkapp_split(TkappObject *self, PyObject *arg) |
2355 | /*[clinic end generated code: output=e08ad832363facfd input=a1c78349eacaa140]*/ |
2356 | { |
2357 | PyObject *v; |
2358 | char *list; |
2359 | |
2360 | if (PyErr_WarnEx(PyExc_DeprecationWarning, |
2361 | "split() is deprecated; consider using splitlist() instead" , 1)) |
2362 | { |
2363 | return NULL; |
2364 | } |
2365 | |
2366 | if (PyTclObject_Check(arg)) { |
2367 | Tcl_Obj *value = ((PyTclObject*)arg)->value; |
2368 | int objc; |
2369 | Tcl_Obj **objv; |
2370 | int i; |
2371 | if (Tcl_ListObjGetElements(Tkapp_Interp(self), value, |
2372 | &objc, &objv) == TCL_ERROR) { |
2373 | return FromObj(self, value); |
2374 | } |
2375 | if (objc == 0) |
2376 | return PyUnicode_FromString("" ); |
2377 | if (objc == 1) |
2378 | return FromObj(self, objv[0]); |
2379 | if (!(v = PyTuple_New(objc))) |
2380 | return NULL; |
2381 | for (i = 0; i < objc; i++) { |
2382 | PyObject *s = FromObj(self, objv[i]); |
2383 | if (!s) { |
2384 | Py_DECREF(v); |
2385 | return NULL; |
2386 | } |
2387 | PyTuple_SET_ITEM(v, i, s); |
2388 | } |
2389 | return v; |
2390 | } |
2391 | if (PyTuple_Check(arg) || PyList_Check(arg)) |
2392 | return SplitObj(arg); |
2393 | |
2394 | if (!PyArg_Parse(arg, "et:split" , "utf-8" , &list)) |
2395 | return NULL; |
2396 | if (strlen(list) >= INT_MAX) { |
2397 | PyErr_SetString(PyExc_OverflowError, "string is too long" ); |
2398 | PyMem_Free(list); |
2399 | return NULL; |
2400 | } |
2401 | v = Split(list); |
2402 | PyMem_Free(list); |
2403 | return v; |
2404 | } |
2405 | |
2406 | |
2407 | |
2408 | /** Tcl Command **/ |
2409 | |
2410 | /* Client data struct */ |
2411 | typedef struct { |
2412 | PyObject *self; |
2413 | PyObject *func; |
2414 | } PythonCmd_ClientData; |
2415 | |
2416 | static int |
2417 | PythonCmd_Error(Tcl_Interp *interp) |
2418 | { |
2419 | errorInCmd = 1; |
2420 | PyErr_Fetch(&excInCmd, &valInCmd, &trbInCmd); |
2421 | LEAVE_PYTHON |
2422 | return TCL_ERROR; |
2423 | } |
2424 | |
2425 | /* This is the Tcl command that acts as a wrapper for Python |
2426 | * function or method. |
2427 | */ |
2428 | static int |
2429 | PythonCmd(ClientData clientData, Tcl_Interp *interp, |
2430 | int objc, Tcl_Obj *const objv[]) |
2431 | { |
2432 | PythonCmd_ClientData *data = (PythonCmd_ClientData *)clientData; |
2433 | PyObject *args, *res; |
2434 | int i; |
2435 | Tcl_Obj *obj_res; |
2436 | |
2437 | ENTER_PYTHON |
2438 | |
2439 | /* Create argument tuple (objv1, ..., objvN) */ |
2440 | if (!(args = PyTuple_New(objc - 1))) |
2441 | return PythonCmd_Error(interp); |
2442 | |
2443 | for (i = 0; i < (objc - 1); i++) { |
2444 | PyObject *s = unicodeFromTclObj(objv[i + 1]); |
2445 | if (!s) { |
2446 | Py_DECREF(args); |
2447 | return PythonCmd_Error(interp); |
2448 | } |
2449 | PyTuple_SET_ITEM(args, i, s); |
2450 | } |
2451 | |
2452 | res = PyObject_Call(data->func, args, NULL); |
2453 | Py_DECREF(args); |
2454 | |
2455 | if (res == NULL) |
2456 | return PythonCmd_Error(interp); |
2457 | |
2458 | obj_res = AsObj(res); |
2459 | if (obj_res == NULL) { |
2460 | Py_DECREF(res); |
2461 | return PythonCmd_Error(interp); |
2462 | } |
2463 | Tcl_SetObjResult(interp, obj_res); |
2464 | Py_DECREF(res); |
2465 | |
2466 | LEAVE_PYTHON |
2467 | |
2468 | return TCL_OK; |
2469 | } |
2470 | |
2471 | |
2472 | static void |
2473 | PythonCmdDelete(ClientData clientData) |
2474 | { |
2475 | PythonCmd_ClientData *data = (PythonCmd_ClientData *)clientData; |
2476 | |
2477 | ENTER_PYTHON |
2478 | Py_XDECREF(data->self); |
2479 | Py_XDECREF(data->func); |
2480 | PyMem_Free(data); |
2481 | LEAVE_PYTHON |
2482 | } |
2483 | |
2484 | |
2485 | |
2486 | |
2487 | TCL_DECLARE_MUTEX(command_mutex) |
2488 | |
2489 | typedef struct CommandEvent{ |
2490 | Tcl_Event ev; |
2491 | Tcl_Interp* interp; |
2492 | const char *name; |
2493 | int create; |
2494 | int *status; |
2495 | ClientData *data; |
2496 | Tcl_Condition *done; |
2497 | } CommandEvent; |
2498 | |
2499 | static int |
2500 | Tkapp_CommandProc(CommandEvent *ev, int flags) |
2501 | { |
2502 | if (ev->create) |
2503 | *ev->status = Tcl_CreateObjCommand( |
2504 | ev->interp, ev->name, PythonCmd, |
2505 | ev->data, PythonCmdDelete) == NULL; |
2506 | else |
2507 | *ev->status = Tcl_DeleteCommand(ev->interp, ev->name); |
2508 | Tcl_MutexLock(&command_mutex); |
2509 | Tcl_ConditionNotify(ev->done); |
2510 | Tcl_MutexUnlock(&command_mutex); |
2511 | return 1; |
2512 | } |
2513 | |
2514 | /*[clinic input] |
2515 | _tkinter.tkapp.createcommand |
2516 | |
2517 | name: str |
2518 | func: object |
2519 | / |
2520 | |
2521 | [clinic start generated code]*/ |
2522 | |
2523 | static PyObject * |
2524 | _tkinter_tkapp_createcommand_impl(TkappObject *self, const char *name, |
2525 | PyObject *func) |
2526 | /*[clinic end generated code: output=2a1c79a4ee2af410 input=255785cb70edc6a0]*/ |
2527 | { |
2528 | PythonCmd_ClientData *data; |
2529 | int err; |
2530 | |
2531 | CHECK_STRING_LENGTH(name); |
2532 | if (!PyCallable_Check(func)) { |
2533 | PyErr_SetString(PyExc_TypeError, "command not callable" ); |
2534 | return NULL; |
2535 | } |
2536 | |
2537 | if (self->threaded && self->thread_id != Tcl_GetCurrentThread() && |
2538 | !WaitForMainloop(self)) |
2539 | return NULL; |
2540 | |
2541 | data = PyMem_NEW(PythonCmd_ClientData, 1); |
2542 | if (!data) |
2543 | return PyErr_NoMemory(); |
2544 | Py_INCREF(self); |
2545 | Py_INCREF(func); |
2546 | data->self = (PyObject *) self; |
2547 | data->func = func; |
2548 | if (self->threaded && self->thread_id != Tcl_GetCurrentThread()) { |
2549 | Tcl_Condition cond = NULL; |
2550 | CommandEvent *ev = (CommandEvent*)attemptckalloc(sizeof(CommandEvent)); |
2551 | if (ev == NULL) { |
2552 | PyErr_NoMemory(); |
2553 | PyMem_Free(data); |
2554 | return NULL; |
2555 | } |
2556 | ev->ev.proc = (Tcl_EventProc*)Tkapp_CommandProc; |
2557 | ev->interp = self->interp; |
2558 | ev->create = 1; |
2559 | ev->name = name; |
2560 | ev->data = (ClientData)data; |
2561 | ev->status = &err; |
2562 | ev->done = &cond; |
2563 | Tkapp_ThreadSend(self, (Tcl_Event*)ev, &cond, &command_mutex); |
2564 | Tcl_ConditionFinalize(&cond); |
2565 | } |
2566 | else |
2567 | { |
2568 | ENTER_TCL |
2569 | err = Tcl_CreateObjCommand( |
2570 | Tkapp_Interp(self), name, PythonCmd, |
2571 | (ClientData)data, PythonCmdDelete) == NULL; |
2572 | LEAVE_TCL |
2573 | } |
2574 | if (err) { |
2575 | PyErr_SetString(Tkinter_TclError, "can't create Tcl command" ); |
2576 | PyMem_Free(data); |
2577 | return NULL; |
2578 | } |
2579 | |
2580 | Py_RETURN_NONE; |
2581 | } |
2582 | |
2583 | |
2584 | |
2585 | /*[clinic input] |
2586 | _tkinter.tkapp.deletecommand |
2587 | |
2588 | name: str |
2589 | / |
2590 | |
2591 | [clinic start generated code]*/ |
2592 | |
2593 | static PyObject * |
2594 | _tkinter_tkapp_deletecommand_impl(TkappObject *self, const char *name) |
2595 | /*[clinic end generated code: output=a67e8cb5845e0d2d input=53e9952eae1f85f5]*/ |
2596 | { |
2597 | int err; |
2598 | |
2599 | CHECK_STRING_LENGTH(name); |
2600 | |
2601 | if (self->threaded && self->thread_id != Tcl_GetCurrentThread()) { |
2602 | Tcl_Condition cond = NULL; |
2603 | CommandEvent *ev; |
2604 | ev = (CommandEvent*)attemptckalloc(sizeof(CommandEvent)); |
2605 | if (ev == NULL) { |
2606 | PyErr_NoMemory(); |
2607 | return NULL; |
2608 | } |
2609 | ev->ev.proc = (Tcl_EventProc*)Tkapp_CommandProc; |
2610 | ev->interp = self->interp; |
2611 | ev->create = 0; |
2612 | ev->name = name; |
2613 | ev->status = &err; |
2614 | ev->done = &cond; |
2615 | Tkapp_ThreadSend(self, (Tcl_Event*)ev, &cond, |
2616 | &command_mutex); |
2617 | Tcl_ConditionFinalize(&cond); |
2618 | } |
2619 | else |
2620 | { |
2621 | ENTER_TCL |
2622 | err = Tcl_DeleteCommand(self->interp, name); |
2623 | LEAVE_TCL |
2624 | } |
2625 | if (err == -1) { |
2626 | PyErr_SetString(Tkinter_TclError, "can't delete Tcl command" ); |
2627 | return NULL; |
2628 | } |
2629 | Py_RETURN_NONE; |
2630 | } |
2631 | |
2632 | |
2633 | |
2634 | #ifdef HAVE_CREATEFILEHANDLER |
2635 | /** File Handler **/ |
2636 | |
2637 | typedef struct _fhcdata { |
2638 | PyObject *func; |
2639 | PyObject *file; |
2640 | int id; |
2641 | struct _fhcdata *next; |
2642 | } FileHandler_ClientData; |
2643 | |
2644 | static FileHandler_ClientData *HeadFHCD; |
2645 | |
2646 | static FileHandler_ClientData * |
2647 | NewFHCD(PyObject *func, PyObject *file, int id) |
2648 | { |
2649 | FileHandler_ClientData *p; |
2650 | p = PyMem_NEW(FileHandler_ClientData, 1); |
2651 | if (p != NULL) { |
2652 | Py_XINCREF(func); |
2653 | Py_XINCREF(file); |
2654 | p->func = func; |
2655 | p->file = file; |
2656 | p->id = id; |
2657 | p->next = HeadFHCD; |
2658 | HeadFHCD = p; |
2659 | } |
2660 | return p; |
2661 | } |
2662 | |
2663 | static void |
2664 | DeleteFHCD(int id) |
2665 | { |
2666 | FileHandler_ClientData *p, **pp; |
2667 | |
2668 | pp = &HeadFHCD; |
2669 | while ((p = *pp) != NULL) { |
2670 | if (p->id == id) { |
2671 | *pp = p->next; |
2672 | Py_XDECREF(p->func); |
2673 | Py_XDECREF(p->file); |
2674 | PyMem_Free(p); |
2675 | } |
2676 | else |
2677 | pp = &p->next; |
2678 | } |
2679 | } |
2680 | |
2681 | static void |
2682 | FileHandler(ClientData clientData, int mask) |
2683 | { |
2684 | FileHandler_ClientData *data = (FileHandler_ClientData *)clientData; |
2685 | PyObject *func, *file, *res; |
2686 | |
2687 | ENTER_PYTHON |
2688 | func = data->func; |
2689 | file = data->file; |
2690 | |
2691 | res = PyObject_CallFunction(func, "Oi" , file, mask); |
2692 | if (res == NULL) { |
2693 | errorInCmd = 1; |
2694 | PyErr_Fetch(&excInCmd, &valInCmd, &trbInCmd); |
2695 | } |
2696 | Py_XDECREF(res); |
2697 | LEAVE_PYTHON |
2698 | } |
2699 | |
2700 | /*[clinic input] |
2701 | _tkinter.tkapp.createfilehandler |
2702 | |
2703 | file: object |
2704 | mask: int |
2705 | func: object |
2706 | / |
2707 | |
2708 | [clinic start generated code]*/ |
2709 | |
2710 | static PyObject * |
2711 | _tkinter_tkapp_createfilehandler_impl(TkappObject *self, PyObject *file, |
2712 | int mask, PyObject *func) |
2713 | /*[clinic end generated code: output=f73ce82de801c353 input=84943a5286e47947]*/ |
2714 | { |
2715 | FileHandler_ClientData *data; |
2716 | int tfile; |
2717 | |
2718 | CHECK_TCL_APPARTMENT; |
2719 | |
2720 | tfile = PyObject_AsFileDescriptor(file); |
2721 | if (tfile < 0) |
2722 | return NULL; |
2723 | if (!PyCallable_Check(func)) { |
2724 | PyErr_SetString(PyExc_TypeError, "bad argument list" ); |
2725 | return NULL; |
2726 | } |
2727 | |
2728 | data = NewFHCD(func, file, tfile); |
2729 | if (data == NULL) |
2730 | return NULL; |
2731 | |
2732 | /* Ought to check for null Tcl_File object... */ |
2733 | ENTER_TCL |
2734 | Tcl_CreateFileHandler(tfile, mask, FileHandler, (ClientData) data); |
2735 | LEAVE_TCL |
2736 | Py_RETURN_NONE; |
2737 | } |
2738 | |
2739 | /*[clinic input] |
2740 | _tkinter.tkapp.deletefilehandler |
2741 | |
2742 | file: object |
2743 | / |
2744 | |
2745 | [clinic start generated code]*/ |
2746 | |
2747 | static PyObject * |
2748 | _tkinter_tkapp_deletefilehandler(TkappObject *self, PyObject *file) |
2749 | /*[clinic end generated code: output=b53cc96ebf9476fd input=abbec19d66312e2a]*/ |
2750 | { |
2751 | int tfile; |
2752 | |
2753 | CHECK_TCL_APPARTMENT; |
2754 | |
2755 | tfile = PyObject_AsFileDescriptor(file); |
2756 | if (tfile < 0) |
2757 | return NULL; |
2758 | |
2759 | DeleteFHCD(tfile); |
2760 | |
2761 | /* Ought to check for null Tcl_File object... */ |
2762 | ENTER_TCL |
2763 | Tcl_DeleteFileHandler(tfile); |
2764 | LEAVE_TCL |
2765 | Py_RETURN_NONE; |
2766 | } |
2767 | #endif /* HAVE_CREATEFILEHANDLER */ |
2768 | |
2769 | |
2770 | /**** Tktt Object (timer token) ****/ |
2771 | |
2772 | static PyObject *Tktt_Type; |
2773 | |
2774 | typedef struct { |
2775 | PyObject_HEAD |
2776 | Tcl_TimerToken token; |
2777 | PyObject *func; |
2778 | } TkttObject; |
2779 | |
2780 | /*[clinic input] |
2781 | _tkinter.tktimertoken.deletetimerhandler |
2782 | |
2783 | [clinic start generated code]*/ |
2784 | |
2785 | static PyObject * |
2786 | _tkinter_tktimertoken_deletetimerhandler_impl(TkttObject *self) |
2787 | /*[clinic end generated code: output=bd7fe17f328cfa55 input=40bd070ff85f5cf3]*/ |
2788 | { |
2789 | TkttObject *v = self; |
2790 | PyObject *func = v->func; |
2791 | |
2792 | if (v->token != NULL) { |
2793 | Tcl_DeleteTimerHandler(v->token); |
2794 | v->token = NULL; |
2795 | } |
2796 | if (func != NULL) { |
2797 | v->func = NULL; |
2798 | Py_DECREF(func); |
2799 | Py_DECREF(v); /* See Tktt_New() */ |
2800 | } |
2801 | Py_RETURN_NONE; |
2802 | } |
2803 | |
2804 | static TkttObject * |
2805 | Tktt_New(PyObject *func) |
2806 | { |
2807 | TkttObject *v; |
2808 | |
2809 | v = PyObject_New(TkttObject, (PyTypeObject *) Tktt_Type); |
2810 | if (v == NULL) |
2811 | return NULL; |
2812 | |
2813 | Py_INCREF(func); |
2814 | v->token = NULL; |
2815 | v->func = func; |
2816 | |
2817 | /* Extra reference, deleted when called or when handler is deleted */ |
2818 | Py_INCREF(v); |
2819 | return v; |
2820 | } |
2821 | |
2822 | static void |
2823 | Tktt_Dealloc(PyObject *self) |
2824 | { |
2825 | TkttObject *v = (TkttObject *)self; |
2826 | PyObject *func = v->func; |
2827 | PyObject *tp = (PyObject *) Py_TYPE(self); |
2828 | |
2829 | Py_XDECREF(func); |
2830 | |
2831 | PyObject_Free(self); |
2832 | Py_DECREF(tp); |
2833 | } |
2834 | |
2835 | static PyObject * |
2836 | Tktt_Repr(PyObject *self) |
2837 | { |
2838 | TkttObject *v = (TkttObject *)self; |
2839 | return PyUnicode_FromFormat("<tktimertoken at %p%s>" , |
2840 | v, |
2841 | v->func == NULL ? ", handler deleted" : "" ); |
2842 | } |
2843 | |
2844 | /** Timer Handler **/ |
2845 | |
2846 | static void |
2847 | TimerHandler(ClientData clientData) |
2848 | { |
2849 | TkttObject *v = (TkttObject *)clientData; |
2850 | PyObject *func = v->func; |
2851 | PyObject *res; |
2852 | |
2853 | if (func == NULL) |
2854 | return; |
2855 | |
2856 | v->func = NULL; |
2857 | |
2858 | ENTER_PYTHON |
2859 | |
2860 | res = PyObject_CallNoArgs(func); |
2861 | Py_DECREF(func); |
2862 | Py_DECREF(v); /* See Tktt_New() */ |
2863 | |
2864 | if (res == NULL) { |
2865 | errorInCmd = 1; |
2866 | PyErr_Fetch(&excInCmd, &valInCmd, &trbInCmd); |
2867 | } |
2868 | else |
2869 | Py_DECREF(res); |
2870 | |
2871 | LEAVE_PYTHON |
2872 | } |
2873 | |
2874 | /*[clinic input] |
2875 | _tkinter.tkapp.createtimerhandler |
2876 | |
2877 | milliseconds: int |
2878 | func: object |
2879 | / |
2880 | |
2881 | [clinic start generated code]*/ |
2882 | |
2883 | static PyObject * |
2884 | _tkinter_tkapp_createtimerhandler_impl(TkappObject *self, int milliseconds, |
2885 | PyObject *func) |
2886 | /*[clinic end generated code: output=2da5959b9d031911 input=ba6729f32f0277a5]*/ |
2887 | { |
2888 | TkttObject *v; |
2889 | |
2890 | if (!PyCallable_Check(func)) { |
2891 | PyErr_SetString(PyExc_TypeError, "bad argument list" ); |
2892 | return NULL; |
2893 | } |
2894 | |
2895 | CHECK_TCL_APPARTMENT; |
2896 | |
2897 | v = Tktt_New(func); |
2898 | if (v) { |
2899 | v->token = Tcl_CreateTimerHandler(milliseconds, TimerHandler, |
2900 | (ClientData)v); |
2901 | } |
2902 | |
2903 | return (PyObject *) v; |
2904 | } |
2905 | |
2906 | |
2907 | /** Event Loop **/ |
2908 | |
2909 | /*[clinic input] |
2910 | _tkinter.tkapp.mainloop |
2911 | |
2912 | threshold: int = 0 |
2913 | / |
2914 | |
2915 | [clinic start generated code]*/ |
2916 | |
2917 | static PyObject * |
2918 | _tkinter_tkapp_mainloop_impl(TkappObject *self, int threshold) |
2919 | /*[clinic end generated code: output=0ba8eabbe57841b0 input=036bcdcf03d5eca0]*/ |
2920 | { |
2921 | PyThreadState *tstate = PyThreadState_Get(); |
2922 | |
2923 | CHECK_TCL_APPARTMENT; |
2924 | self->dispatching = 1; |
2925 | |
2926 | quitMainLoop = 0; |
2927 | while (Tk_GetNumMainWindows() > threshold && |
2928 | !quitMainLoop && |
2929 | !errorInCmd) |
2930 | { |
2931 | int result; |
2932 | |
2933 | if (self->threaded) { |
2934 | /* Allow other Python threads to run. */ |
2935 | ENTER_TCL |
2936 | result = Tcl_DoOneEvent(0); |
2937 | LEAVE_TCL |
2938 | } |
2939 | else { |
2940 | Py_BEGIN_ALLOW_THREADS |
2941 | if(tcl_lock)PyThread_acquire_lock(tcl_lock, 1); |
2942 | tcl_tstate = tstate; |
2943 | result = Tcl_DoOneEvent(TCL_DONT_WAIT); |
2944 | tcl_tstate = NULL; |
2945 | if(tcl_lock)PyThread_release_lock(tcl_lock); |
2946 | if (result == 0) |
2947 | Sleep(Tkinter_busywaitinterval); |
2948 | Py_END_ALLOW_THREADS |
2949 | } |
2950 | |
2951 | if (PyErr_CheckSignals() != 0) { |
2952 | self->dispatching = 0; |
2953 | return NULL; |
2954 | } |
2955 | if (result < 0) |
2956 | break; |
2957 | } |
2958 | self->dispatching = 0; |
2959 | quitMainLoop = 0; |
2960 | |
2961 | if (errorInCmd) { |
2962 | errorInCmd = 0; |
2963 | PyErr_Restore(excInCmd, valInCmd, trbInCmd); |
2964 | excInCmd = valInCmd = trbInCmd = NULL; |
2965 | return NULL; |
2966 | } |
2967 | Py_RETURN_NONE; |
2968 | } |
2969 | |
2970 | /*[clinic input] |
2971 | _tkinter.tkapp.dooneevent |
2972 | |
2973 | flags: int = 0 |
2974 | / |
2975 | |
2976 | [clinic start generated code]*/ |
2977 | |
2978 | static PyObject * |
2979 | _tkinter_tkapp_dooneevent_impl(TkappObject *self, int flags) |
2980 | /*[clinic end generated code: output=27c6b2aa464cac29 input=6542b928e364b793]*/ |
2981 | { |
2982 | int rv; |
2983 | |
2984 | ENTER_TCL |
2985 | rv = Tcl_DoOneEvent(flags); |
2986 | LEAVE_TCL |
2987 | return PyLong_FromLong(rv); |
2988 | } |
2989 | |
2990 | /*[clinic input] |
2991 | _tkinter.tkapp.quit |
2992 | [clinic start generated code]*/ |
2993 | |
2994 | static PyObject * |
2995 | _tkinter_tkapp_quit_impl(TkappObject *self) |
2996 | /*[clinic end generated code: output=7f21eeff481f754f input=e03020dc38aff23c]*/ |
2997 | { |
2998 | quitMainLoop = 1; |
2999 | Py_RETURN_NONE; |
3000 | } |
3001 | |
3002 | /*[clinic input] |
3003 | _tkinter.tkapp.interpaddr |
3004 | [clinic start generated code]*/ |
3005 | |
3006 | static PyObject * |
3007 | _tkinter_tkapp_interpaddr_impl(TkappObject *self) |
3008 | /*[clinic end generated code: output=6caaae3273b3c95a input=2dd32cbddb55a111]*/ |
3009 | { |
3010 | return PyLong_FromVoidPtr(Tkapp_Interp(self)); |
3011 | } |
3012 | |
3013 | /*[clinic input] |
3014 | _tkinter.tkapp.loadtk |
3015 | [clinic start generated code]*/ |
3016 | |
3017 | static PyObject * |
3018 | _tkinter_tkapp_loadtk_impl(TkappObject *self) |
3019 | /*[clinic end generated code: output=e9e10a954ce46d2a input=b5e82afedd6354f0]*/ |
3020 | { |
3021 | Tcl_Interp *interp = Tkapp_Interp(self); |
3022 | const char * _tk_exists = NULL; |
3023 | int err; |
3024 | |
3025 | #ifdef TKINTER_PROTECT_LOADTK |
3026 | /* Up to Tk 8.4.13, Tk_Init deadlocks on the second call when the |
3027 | * first call failed. |
3028 | * To avoid the deadlock, we just refuse the second call through |
3029 | * a static variable. |
3030 | */ |
3031 | if (tk_load_failed) { |
3032 | PyErr_SetString(Tkinter_TclError, TKINTER_LOADTK_ERRMSG); |
3033 | return NULL; |
3034 | } |
3035 | #endif |
3036 | |
3037 | /* We want to guard against calling Tk_Init() multiple times */ |
3038 | CHECK_TCL_APPARTMENT; |
3039 | ENTER_TCL |
3040 | err = Tcl_Eval(Tkapp_Interp(self), "info exists tk_version" ); |
3041 | ENTER_OVERLAP |
3042 | if (err == TCL_ERROR) { |
3043 | /* This sets an exception, but we cannot return right |
3044 | away because we need to exit the overlap first. */ |
3045 | Tkinter_Error(self); |
3046 | } else { |
3047 | _tk_exists = Tcl_GetStringResult(Tkapp_Interp(self)); |
3048 | } |
3049 | LEAVE_OVERLAP_TCL |
3050 | if (err == TCL_ERROR) { |
3051 | return NULL; |
3052 | } |
3053 | if (_tk_exists == NULL || strcmp(_tk_exists, "1" ) != 0) { |
3054 | if (Tk_Init(interp) == TCL_ERROR) { |
3055 | Tkinter_Error(self); |
3056 | #ifdef TKINTER_PROTECT_LOADTK |
3057 | tk_load_failed = 1; |
3058 | #endif |
3059 | return NULL; |
3060 | } |
3061 | } |
3062 | Py_RETURN_NONE; |
3063 | } |
3064 | |
3065 | static PyObject * |
3066 | Tkapp_WantObjects(PyObject *self, PyObject *args) |
3067 | { |
3068 | |
3069 | int wantobjects = -1; |
3070 | if (!PyArg_ParseTuple(args, "|i:wantobjects" , &wantobjects)) |
3071 | return NULL; |
3072 | if (wantobjects == -1) |
3073 | return PyBool_FromLong(((TkappObject*)self)->wantobjects); |
3074 | ((TkappObject*)self)->wantobjects = wantobjects; |
3075 | |
3076 | Py_RETURN_NONE; |
3077 | } |
3078 | |
3079 | /*[clinic input] |
3080 | _tkinter.tkapp.willdispatch |
3081 | |
3082 | [clinic start generated code]*/ |
3083 | |
3084 | static PyObject * |
3085 | _tkinter_tkapp_willdispatch_impl(TkappObject *self) |
3086 | /*[clinic end generated code: output=0e3f46d244642155 input=d88f5970843d6dab]*/ |
3087 | { |
3088 | self->dispatching = 1; |
3089 | |
3090 | Py_RETURN_NONE; |
3091 | } |
3092 | |
3093 | |
3094 | /**** Tkapp Type Methods ****/ |
3095 | |
3096 | static void |
3097 | Tkapp_Dealloc(PyObject *self) |
3098 | { |
3099 | PyObject *tp = (PyObject *) Py_TYPE(self); |
3100 | /*CHECK_TCL_APPARTMENT;*/ |
3101 | ENTER_TCL |
3102 | Tcl_DeleteInterp(Tkapp_Interp(self)); |
3103 | LEAVE_TCL |
3104 | PyObject_Free(self); |
3105 | Py_DECREF(tp); |
3106 | DisableEventHook(); |
3107 | } |
3108 | |
3109 | |
3110 | |
3111 | /**** Tkinter Module ****/ |
3112 | |
3113 | typedef struct { |
3114 | PyObject* tuple; |
3115 | Py_ssize_t size; /* current size */ |
3116 | Py_ssize_t maxsize; /* allocated size */ |
3117 | } FlattenContext; |
3118 | |
3119 | static int |
3120 | _bump(FlattenContext* context, Py_ssize_t size) |
3121 | { |
3122 | /* expand tuple to hold (at least) size new items. |
3123 | return true if successful, false if an exception was raised */ |
3124 | |
3125 | Py_ssize_t maxsize = context->maxsize * 2; /* never overflows */ |
3126 | |
3127 | if (maxsize < context->size + size) |
3128 | maxsize = context->size + size; /* never overflows */ |
3129 | |
3130 | context->maxsize = maxsize; |
3131 | |
3132 | return _PyTuple_Resize(&context->tuple, maxsize) >= 0; |
3133 | } |
3134 | |
3135 | static int |
3136 | _flatten1(FlattenContext* context, PyObject* item, int depth) |
3137 | { |
3138 | /* add tuple or list to argument tuple (recursively) */ |
3139 | |
3140 | Py_ssize_t i, size; |
3141 | |
3142 | if (depth > 1000) { |
3143 | PyErr_SetString(PyExc_ValueError, |
3144 | "nesting too deep in _flatten" ); |
3145 | return 0; |
3146 | } else if (PyTuple_Check(item) || PyList_Check(item)) { |
3147 | size = PySequence_Fast_GET_SIZE(item); |
3148 | /* preallocate (assume no nesting) */ |
3149 | if (context->size + size > context->maxsize && |
3150 | !_bump(context, size)) |
3151 | return 0; |
3152 | /* copy items to output tuple */ |
3153 | for (i = 0; i < size; i++) { |
3154 | PyObject *o = PySequence_Fast_GET_ITEM(item, i); |
3155 | if (PyList_Check(o) || PyTuple_Check(o)) { |
3156 | if (!_flatten1(context, o, depth + 1)) |
3157 | return 0; |
3158 | } else if (o != Py_None) { |
3159 | if (context->size + 1 > context->maxsize && |
3160 | !_bump(context, 1)) |
3161 | return 0; |
3162 | Py_INCREF(o); |
3163 | PyTuple_SET_ITEM(context->tuple, |
3164 | context->size++, o); |
3165 | } |
3166 | } |
3167 | } else { |
3168 | PyErr_SetString(PyExc_TypeError, "argument must be sequence" ); |
3169 | return 0; |
3170 | } |
3171 | return 1; |
3172 | } |
3173 | |
3174 | /*[clinic input] |
3175 | _tkinter._flatten |
3176 | |
3177 | item: object |
3178 | / |
3179 | |
3180 | [clinic start generated code]*/ |
3181 | |
3182 | static PyObject * |
3183 | _tkinter__flatten(PyObject *module, PyObject *item) |
3184 | /*[clinic end generated code: output=cad02a3f97f29862 input=6b9c12260aa1157f]*/ |
3185 | { |
3186 | FlattenContext context; |
3187 | |
3188 | context.maxsize = PySequence_Size(item); |
3189 | if (context.maxsize < 0) |
3190 | return NULL; |
3191 | if (context.maxsize == 0) |
3192 | return PyTuple_New(0); |
3193 | |
3194 | context.tuple = PyTuple_New(context.maxsize); |
3195 | if (!context.tuple) |
3196 | return NULL; |
3197 | |
3198 | context.size = 0; |
3199 | |
3200 | if (!_flatten1(&context, item, 0)) { |
3201 | Py_XDECREF(context.tuple); |
3202 | return NULL; |
3203 | } |
3204 | |
3205 | if (_PyTuple_Resize(&context.tuple, context.size)) |
3206 | return NULL; |
3207 | |
3208 | return context.tuple; |
3209 | } |
3210 | |
3211 | /*[clinic input] |
3212 | _tkinter.create |
3213 | |
3214 | screenName: str(accept={str, NoneType}) = None |
3215 | baseName: str = "" |
3216 | className: str = "Tk" |
3217 | interactive: bool(accept={int}) = False |
3218 | wantobjects: bool(accept={int}) = False |
3219 | wantTk: bool(accept={int}) = True |
3220 | if false, then Tk_Init() doesn't get called |
3221 | sync: bool(accept={int}) = False |
3222 | if true, then pass -sync to wish |
3223 | use: str(accept={str, NoneType}) = None |
3224 | if not None, then pass -use to wish |
3225 | / |
3226 | |
3227 | [clinic start generated code]*/ |
3228 | |
3229 | static PyObject * |
3230 | _tkinter_create_impl(PyObject *module, const char *screenName, |
3231 | const char *baseName, const char *className, |
3232 | int interactive, int wantobjects, int wantTk, int sync, |
3233 | const char *use) |
3234 | /*[clinic end generated code: output=e3315607648e6bb4 input=da9b17ee7358d862]*/ |
3235 | { |
3236 | /* XXX baseName is not used anymore; |
3237 | * try getting rid of it. */ |
3238 | CHECK_STRING_LENGTH(screenName); |
3239 | CHECK_STRING_LENGTH(baseName); |
3240 | CHECK_STRING_LENGTH(className); |
3241 | CHECK_STRING_LENGTH(use); |
3242 | |
3243 | return (PyObject *) Tkapp_New(screenName, className, |
3244 | interactive, wantobjects, wantTk, |
3245 | sync, use); |
3246 | } |
3247 | |
3248 | /*[clinic input] |
3249 | _tkinter.setbusywaitinterval |
3250 | |
3251 | new_val: int |
3252 | / |
3253 | |
3254 | Set the busy-wait interval in milliseconds between successive calls to Tcl_DoOneEvent in a threaded Python interpreter. |
3255 | |
3256 | It should be set to a divisor of the maximum time between frames in an animation. |
3257 | [clinic start generated code]*/ |
3258 | |
3259 | static PyObject * |
3260 | _tkinter_setbusywaitinterval_impl(PyObject *module, int new_val) |
3261 | /*[clinic end generated code: output=42bf7757dc2d0ab6 input=deca1d6f9e6dae47]*/ |
3262 | { |
3263 | if (new_val < 0) { |
3264 | PyErr_SetString(PyExc_ValueError, |
3265 | "busywaitinterval must be >= 0" ); |
3266 | return NULL; |
3267 | } |
3268 | Tkinter_busywaitinterval = new_val; |
3269 | Py_RETURN_NONE; |
3270 | } |
3271 | |
3272 | /*[clinic input] |
3273 | _tkinter.getbusywaitinterval -> int |
3274 | |
3275 | Return the current busy-wait interval between successive calls to Tcl_DoOneEvent in a threaded Python interpreter. |
3276 | [clinic start generated code]*/ |
3277 | |
3278 | static int |
3279 | _tkinter_getbusywaitinterval_impl(PyObject *module) |
3280 | /*[clinic end generated code: output=23b72d552001f5c7 input=a695878d2d576a84]*/ |
3281 | { |
3282 | return Tkinter_busywaitinterval; |
3283 | } |
3284 | |
3285 | #include "clinic/_tkinter.c.h" |
3286 | |
3287 | static PyMethodDef Tktt_methods[] = |
3288 | { |
3289 | _TKINTER_TKTIMERTOKEN_DELETETIMERHANDLER_METHODDEF |
3290 | {NULL, NULL} |
3291 | }; |
3292 | |
3293 | static PyType_Slot Tktt_Type_slots[] = { |
3294 | {Py_tp_dealloc, Tktt_Dealloc}, |
3295 | {Py_tp_repr, Tktt_Repr}, |
3296 | {Py_tp_methods, Tktt_methods}, |
3297 | {0, 0} |
3298 | }; |
3299 | |
3300 | static PyType_Spec Tktt_Type_spec = { |
3301 | "_tkinter.tktimertoken" , |
3302 | sizeof(TkttObject), |
3303 | 0, |
3304 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION, |
3305 | Tktt_Type_slots, |
3306 | }; |
3307 | |
3308 | |
3309 | /**** Tkapp Method List ****/ |
3310 | |
3311 | static PyMethodDef Tkapp_methods[] = |
3312 | { |
3313 | _TKINTER_TKAPP_WILLDISPATCH_METHODDEF |
3314 | {"wantobjects" , Tkapp_WantObjects, METH_VARARGS}, |
3315 | {"call" , Tkapp_Call, METH_VARARGS}, |
3316 | _TKINTER_TKAPP_EVAL_METHODDEF |
3317 | _TKINTER_TKAPP_EVALFILE_METHODDEF |
3318 | _TKINTER_TKAPP_RECORD_METHODDEF |
3319 | _TKINTER_TKAPP_ADDERRORINFO_METHODDEF |
3320 | {"setvar" , Tkapp_SetVar, METH_VARARGS}, |
3321 | {"globalsetvar" , Tkapp_GlobalSetVar, METH_VARARGS}, |
3322 | {"getvar" , Tkapp_GetVar, METH_VARARGS}, |
3323 | {"globalgetvar" , Tkapp_GlobalGetVar, METH_VARARGS}, |
3324 | {"unsetvar" , Tkapp_UnsetVar, METH_VARARGS}, |
3325 | {"globalunsetvar" , Tkapp_GlobalUnsetVar, METH_VARARGS}, |
3326 | _TKINTER_TKAPP_GETINT_METHODDEF |
3327 | _TKINTER_TKAPP_GETDOUBLE_METHODDEF |
3328 | _TKINTER_TKAPP_GETBOOLEAN_METHODDEF |
3329 | _TKINTER_TKAPP_EXPRSTRING_METHODDEF |
3330 | _TKINTER_TKAPP_EXPRLONG_METHODDEF |
3331 | _TKINTER_TKAPP_EXPRDOUBLE_METHODDEF |
3332 | _TKINTER_TKAPP_EXPRBOOLEAN_METHODDEF |
3333 | _TKINTER_TKAPP_SPLITLIST_METHODDEF |
3334 | _TKINTER_TKAPP_SPLIT_METHODDEF |
3335 | _TKINTER_TKAPP_CREATECOMMAND_METHODDEF |
3336 | _TKINTER_TKAPP_DELETECOMMAND_METHODDEF |
3337 | _TKINTER_TKAPP_CREATEFILEHANDLER_METHODDEF |
3338 | _TKINTER_TKAPP_DELETEFILEHANDLER_METHODDEF |
3339 | _TKINTER_TKAPP_CREATETIMERHANDLER_METHODDEF |
3340 | _TKINTER_TKAPP_MAINLOOP_METHODDEF |
3341 | _TKINTER_TKAPP_DOONEEVENT_METHODDEF |
3342 | _TKINTER_TKAPP_QUIT_METHODDEF |
3343 | _TKINTER_TKAPP_INTERPADDR_METHODDEF |
3344 | _TKINTER_TKAPP_LOADTK_METHODDEF |
3345 | {NULL, NULL} |
3346 | }; |
3347 | |
3348 | static PyType_Slot Tkapp_Type_slots[] = { |
3349 | {Py_tp_dealloc, Tkapp_Dealloc}, |
3350 | {Py_tp_methods, Tkapp_methods}, |
3351 | {0, 0} |
3352 | }; |
3353 | |
3354 | |
3355 | static PyType_Spec Tkapp_Type_spec = { |
3356 | "_tkinter.tkapp" , |
3357 | sizeof(TkappObject), |
3358 | 0, |
3359 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION, |
3360 | Tkapp_Type_slots, |
3361 | }; |
3362 | |
3363 | static PyMethodDef moduleMethods[] = |
3364 | { |
3365 | _TKINTER__FLATTEN_METHODDEF |
3366 | _TKINTER_CREATE_METHODDEF |
3367 | _TKINTER_SETBUSYWAITINTERVAL_METHODDEF |
3368 | _TKINTER_GETBUSYWAITINTERVAL_METHODDEF |
3369 | {NULL, NULL} |
3370 | }; |
3371 | |
3372 | #ifdef WAIT_FOR_STDIN |
3373 | |
3374 | static int stdin_ready = 0; |
3375 | |
3376 | #ifndef MS_WINDOWS |
3377 | static void |
3378 | MyFileProc(void *clientData, int mask) |
3379 | { |
3380 | stdin_ready = 1; |
3381 | } |
3382 | #endif |
3383 | |
3384 | static PyThreadState *event_tstate = NULL; |
3385 | |
3386 | static int |
3387 | EventHook(void) |
3388 | { |
3389 | #ifndef MS_WINDOWS |
3390 | int tfile; |
3391 | #endif |
3392 | PyEval_RestoreThread(event_tstate); |
3393 | stdin_ready = 0; |
3394 | errorInCmd = 0; |
3395 | #ifndef MS_WINDOWS |
3396 | tfile = fileno(stdin); |
3397 | Tcl_CreateFileHandler(tfile, TCL_READABLE, MyFileProc, NULL); |
3398 | #endif |
3399 | while (!errorInCmd && !stdin_ready) { |
3400 | int result; |
3401 | #ifdef MS_WINDOWS |
3402 | if (_kbhit()) { |
3403 | stdin_ready = 1; |
3404 | break; |
3405 | } |
3406 | #endif |
3407 | Py_BEGIN_ALLOW_THREADS |
3408 | if(tcl_lock)PyThread_acquire_lock(tcl_lock, 1); |
3409 | tcl_tstate = event_tstate; |
3410 | |
3411 | result = Tcl_DoOneEvent(TCL_DONT_WAIT); |
3412 | |
3413 | tcl_tstate = NULL; |
3414 | if(tcl_lock)PyThread_release_lock(tcl_lock); |
3415 | if (result == 0) |
3416 | Sleep(Tkinter_busywaitinterval); |
3417 | Py_END_ALLOW_THREADS |
3418 | |
3419 | if (result < 0) |
3420 | break; |
3421 | } |
3422 | #ifndef MS_WINDOWS |
3423 | Tcl_DeleteFileHandler(tfile); |
3424 | #endif |
3425 | if (errorInCmd) { |
3426 | errorInCmd = 0; |
3427 | PyErr_Restore(excInCmd, valInCmd, trbInCmd); |
3428 | excInCmd = valInCmd = trbInCmd = NULL; |
3429 | PyErr_Print(); |
3430 | } |
3431 | PyEval_SaveThread(); |
3432 | return 0; |
3433 | } |
3434 | |
3435 | #endif |
3436 | |
3437 | static void |
3438 | EnableEventHook(void) |
3439 | { |
3440 | #ifdef WAIT_FOR_STDIN |
3441 | if (PyOS_InputHook == NULL) { |
3442 | event_tstate = PyThreadState_Get(); |
3443 | PyOS_InputHook = EventHook; |
3444 | } |
3445 | #endif |
3446 | } |
3447 | |
3448 | static void |
3449 | DisableEventHook(void) |
3450 | { |
3451 | #ifdef WAIT_FOR_STDIN |
3452 | if (Tk_GetNumMainWindows() == 0 && PyOS_InputHook == EventHook) { |
3453 | PyOS_InputHook = NULL; |
3454 | } |
3455 | #endif |
3456 | } |
3457 | |
3458 | |
3459 | static struct PyModuleDef _tkintermodule = { |
3460 | PyModuleDef_HEAD_INIT, |
3461 | "_tkinter" , |
3462 | NULL, |
3463 | -1, |
3464 | moduleMethods, |
3465 | NULL, |
3466 | NULL, |
3467 | NULL, |
3468 | NULL |
3469 | }; |
3470 | |
3471 | PyMODINIT_FUNC |
3472 | PyInit__tkinter(void) |
3473 | { |
3474 | PyObject *m, *uexe, *cexe, *o; |
3475 | |
3476 | tcl_lock = PyThread_allocate_lock(); |
3477 | if (tcl_lock == NULL) |
3478 | return NULL; |
3479 | |
3480 | m = PyModule_Create(&_tkintermodule); |
3481 | if (m == NULL) |
3482 | return NULL; |
3483 | |
3484 | o = PyErr_NewException("_tkinter.TclError" , NULL, NULL); |
3485 | if (o == NULL) { |
3486 | Py_DECREF(m); |
3487 | return NULL; |
3488 | } |
3489 | Py_INCREF(o); |
3490 | if (PyModule_AddObject(m, "TclError" , o)) { |
3491 | Py_DECREF(o); |
3492 | Py_DECREF(m); |
3493 | return NULL; |
3494 | } |
3495 | Tkinter_TclError = o; |
3496 | |
3497 | if (PyModule_AddIntConstant(m, "READABLE" , TCL_READABLE)) { |
3498 | Py_DECREF(m); |
3499 | return NULL; |
3500 | } |
3501 | if (PyModule_AddIntConstant(m, "WRITABLE" , TCL_WRITABLE)) { |
3502 | Py_DECREF(m); |
3503 | return NULL; |
3504 | } |
3505 | if (PyModule_AddIntConstant(m, "EXCEPTION" , TCL_EXCEPTION)) { |
3506 | Py_DECREF(m); |
3507 | return NULL; |
3508 | } |
3509 | if (PyModule_AddIntConstant(m, "WINDOW_EVENTS" , TCL_WINDOW_EVENTS)) { |
3510 | Py_DECREF(m); |
3511 | return NULL; |
3512 | } |
3513 | if (PyModule_AddIntConstant(m, "FILE_EVENTS" , TCL_FILE_EVENTS)) { |
3514 | Py_DECREF(m); |
3515 | return NULL; |
3516 | } |
3517 | if (PyModule_AddIntConstant(m, "TIMER_EVENTS" , TCL_TIMER_EVENTS)) { |
3518 | Py_DECREF(m); |
3519 | return NULL; |
3520 | } |
3521 | if (PyModule_AddIntConstant(m, "IDLE_EVENTS" , TCL_IDLE_EVENTS)) { |
3522 | Py_DECREF(m); |
3523 | return NULL; |
3524 | } |
3525 | if (PyModule_AddIntConstant(m, "ALL_EVENTS" , TCL_ALL_EVENTS)) { |
3526 | Py_DECREF(m); |
3527 | return NULL; |
3528 | } |
3529 | if (PyModule_AddIntConstant(m, "DONT_WAIT" , TCL_DONT_WAIT)) { |
3530 | Py_DECREF(m); |
3531 | return NULL; |
3532 | } |
3533 | if (PyModule_AddStringConstant(m, "TK_VERSION" , TK_VERSION)) { |
3534 | Py_DECREF(m); |
3535 | return NULL; |
3536 | } |
3537 | if (PyModule_AddStringConstant(m, "TCL_VERSION" , TCL_VERSION)) { |
3538 | Py_DECREF(m); |
3539 | return NULL; |
3540 | } |
3541 | |
3542 | o = PyType_FromSpec(&Tkapp_Type_spec); |
3543 | if (o == NULL) { |
3544 | Py_DECREF(m); |
3545 | return NULL; |
3546 | } |
3547 | if (PyModule_AddObject(m, "TkappType" , o)) { |
3548 | Py_DECREF(o); |
3549 | Py_DECREF(m); |
3550 | return NULL; |
3551 | } |
3552 | Tkapp_Type = o; |
3553 | |
3554 | o = PyType_FromSpec(&Tktt_Type_spec); |
3555 | if (o == NULL) { |
3556 | Py_DECREF(m); |
3557 | return NULL; |
3558 | } |
3559 | if (PyModule_AddObject(m, "TkttType" , o)) { |
3560 | Py_DECREF(o); |
3561 | Py_DECREF(m); |
3562 | return NULL; |
3563 | } |
3564 | Tktt_Type = o; |
3565 | |
3566 | o = PyType_FromSpec(&PyTclObject_Type_spec); |
3567 | if (o == NULL) { |
3568 | Py_DECREF(m); |
3569 | return NULL; |
3570 | } |
3571 | if (PyModule_AddObject(m, "Tcl_Obj" , o)) { |
3572 | Py_DECREF(o); |
3573 | Py_DECREF(m); |
3574 | return NULL; |
3575 | } |
3576 | PyTclObject_Type = o; |
3577 | |
3578 | #ifdef TK_AQUA |
3579 | /* Tk_MacOSXSetupTkNotifier must be called before Tcl's subsystems |
3580 | * start waking up. Note that Tcl_FindExecutable will do this, this |
3581 | * code must be above it! The original warning from |
3582 | * tkMacOSXAppInit.c is copied below. |
3583 | * |
3584 | * NB - You have to swap in the Tk Notifier BEFORE you start up the |
3585 | * Tcl interpreter for now. It probably should work to do this |
3586 | * in the other order, but for now it doesn't seem to. |
3587 | * |
3588 | */ |
3589 | Tk_MacOSXSetupTkNotifier(); |
3590 | #endif |
3591 | |
3592 | |
3593 | /* This helps the dynamic loader; in Unicode aware Tcl versions |
3594 | it also helps Tcl find its encodings. */ |
3595 | uexe = PyUnicode_FromWideChar(Py_GetProgramName(), -1); |
3596 | if (uexe) { |
3597 | cexe = PyUnicode_EncodeFSDefault(uexe); |
3598 | if (cexe) { |
3599 | #ifdef MS_WINDOWS |
3600 | int set_var = 0; |
3601 | PyObject *str_path; |
3602 | wchar_t *wcs_path; |
3603 | DWORD ret; |
3604 | |
3605 | ret = GetEnvironmentVariableW(L"TCL_LIBRARY" , NULL, 0); |
3606 | |
3607 | if (!ret && GetLastError() == ERROR_ENVVAR_NOT_FOUND) { |
3608 | str_path = _get_tcl_lib_path(); |
3609 | if (str_path == NULL && PyErr_Occurred()) { |
3610 | Py_DECREF(m); |
3611 | return NULL; |
3612 | } |
3613 | if (str_path != NULL) { |
3614 | wcs_path = PyUnicode_AsWideCharString(str_path, NULL); |
3615 | if (wcs_path == NULL) { |
3616 | Py_DECREF(m); |
3617 | return NULL; |
3618 | } |
3619 | SetEnvironmentVariableW(L"TCL_LIBRARY" , wcs_path); |
3620 | set_var = 1; |
3621 | } |
3622 | } |
3623 | |
3624 | Tcl_FindExecutable(PyBytes_AS_STRING(cexe)); |
3625 | |
3626 | if (set_var) { |
3627 | SetEnvironmentVariableW(L"TCL_LIBRARY" , NULL); |
3628 | PyMem_Free(wcs_path); |
3629 | } |
3630 | #else |
3631 | Tcl_FindExecutable(PyBytes_AS_STRING(cexe)); |
3632 | #endif /* MS_WINDOWS */ |
3633 | } |
3634 | Py_XDECREF(cexe); |
3635 | Py_DECREF(uexe); |
3636 | } |
3637 | |
3638 | if (PyErr_Occurred()) { |
3639 | Py_DECREF(m); |
3640 | return NULL; |
3641 | } |
3642 | |
3643 | #if 0 |
3644 | /* This was not a good idea; through <Destroy> bindings, |
3645 | Tcl_Finalize() may invoke Python code but at that point the |
3646 | interpreter and thread state have already been destroyed! */ |
3647 | Py_AtExit(Tcl_Finalize); |
3648 | #endif |
3649 | return m; |
3650 | } |
3651 | |