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made multiple selection behave more consistently with the usual (Windows) way
[wxWidgets.git] / wxPython / src / helpers.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: helpers.cpp
3 // Purpose: Helper functions/classes for the wxPython extension module
4 //
5 // Author: Robin Dunn
6 //
7 // Created: 7/1/97
8 // RCS-ID: $Id$
9 // Copyright: (c) 1998 by Total Control Software
10 // Licence: wxWindows license
11 /////////////////////////////////////////////////////////////////////////////
12
13
14 #undef DEBUG
15 #include <Python.h>
16 #include "helpers.h"
17 #include "pyistream.h"
18
19 #ifdef __WXMSW__
20 #include <wx/msw/private.h>
21 #include <wx/msw/winundef.h>
22 #include <wx/msw/msvcrt.h>
23 #endif
24
25 #ifdef __WXGTK__
26 #include <gtk/gtk.h>
27 #include <gdk/gdkprivate.h>
28 #include <wx/gtk/win_gtk.h>
29 #endif
30
31 //----------------------------------------------------------------------
32
33 #if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE
34 #error Python must support Unicode to use wxWindows Unicode
35 #endif
36
37 //----------------------------------------------------------------------
38
39 #ifdef __WXGTK__
40 int WXDLLEXPORT wxEntryStart( int& argc, char** argv );
41 #else
42 int WXDLLEXPORT wxEntryStart( int argc, char** argv );
43 #endif
44 int WXDLLEXPORT wxEntryInitGui();
45 void WXDLLEXPORT wxEntryCleanup();
46
47 wxPyApp* wxPythonApp = NULL; // Global instance of application object
48 bool wxPyDoCleanup = FALSE;
49 bool wxPyDoingCleanup = FALSE;
50
51
52 #ifdef WXP_WITH_THREAD
53 struct wxPyThreadState {
54 unsigned long tid;
55 PyThreadState* tstate;
56
57 wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
58 : tid(_tid), tstate(_tstate) {}
59 };
60
61 #include <wx/dynarray.h>
62 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
63 #include <wx/arrimpl.cpp>
64 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
65
66 wxPyThreadStateArray* wxPyTStates = NULL;
67 wxMutex* wxPyTMutex = NULL;
68 #endif
69
70
71 static PyObject* wxPython_dict = NULL;
72 static PyObject* wxPyPtrTypeMap = NULL;
73 static PyObject* wxPyAssertionError = NULL;
74
75
76 #ifdef __WXMSW__ // If building for win32...
77 //----------------------------------------------------------------------
78 // This gets run when the DLL is loaded. We just need to save a handle.
79 //----------------------------------------------------------------------
80
81 BOOL WINAPI DllMain(
82 HINSTANCE hinstDLL, // handle to DLL module
83 DWORD fdwReason, // reason for calling function
84 LPVOID lpvReserved // reserved
85 )
86 {
87 // If wxPython is embedded in another wxWindows app then
88 // the inatance has already been set.
89 if (! wxGetInstance())
90 wxSetInstance(hinstDLL);
91 return TRUE;
92 }
93 #endif
94
95 //----------------------------------------------------------------------
96 // Classes for implementing the wxp main application shell.
97 //----------------------------------------------------------------------
98
99 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
100
101
102 wxPyApp::wxPyApp() {
103 m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
104 }
105
106
107 wxPyApp::~wxPyApp() {
108 }
109
110
111 // This one isn't acutally called... We fake it with __wxStart()
112 bool wxPyApp::OnInit() {
113 return FALSE;
114 }
115
116
117 int wxPyApp::MainLoop() {
118 int retval = 0;
119
120 DeletePendingObjects();
121 bool initialized = wxTopLevelWindows.GetCount() != 0;
122 #ifdef __WXGTK__
123 m_initialized = initialized;
124 #endif
125
126 if (initialized) {
127 if ( m_exitOnFrameDelete == Later ) {
128 m_exitOnFrameDelete = Yes;
129 }
130
131 retval = wxApp::MainLoop();
132 OnExit();
133 }
134 return retval;
135 }
136
137
138 bool wxPyApp::OnInitGui() {
139 bool rval=TRUE;
140 wxApp::OnInitGui(); // in this case always call the base class version
141 // wxPyBeginBlockThreads(); *** only called from within __wxStart so we already have the GIL
142 if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
143 rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
144 // wxPyEndBlockThreads(); ***
145 return rval;
146 }
147
148
149 int wxPyApp::OnExit() {
150 int rval=0;
151 wxPyBeginBlockThreads();
152 if (wxPyCBH_findCallback(m_myInst, "OnExit"))
153 rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
154 wxPyEndBlockThreads();
155 wxApp::OnExit(); // in this case always call the base class version
156 return rval;
157 }
158
159
160 #ifdef __WXDEBUG__
161 void wxPyApp::OnAssert(const wxChar *file,
162 int line,
163 const wxChar *cond,
164 const wxChar *msg) {
165
166 // If the OnAssert is overloaded in the Python class then call it...
167 bool found;
168 wxPyBeginBlockThreads();
169 if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
170 PyObject* fso = wx2PyString(file);
171 PyObject* cso = wx2PyString(file);
172 PyObject* mso;
173 if (msg != NULL)
174 mso = wx2PyString(file);
175 else {
176 mso = Py_None; Py_INCREF(Py_None);
177 }
178 wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
179 Py_DECREF(fso);
180 Py_DECREF(cso);
181 Py_DECREF(mso);
182 }
183 wxPyEndBlockThreads();
184
185 // ...otherwise do our own thing with it
186 if (! found) {
187 // ignore it?
188 if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
189 return;
190
191 // turn it into a Python exception?
192 if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
193 wxString buf;
194 buf.Alloc(4096);
195 buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
196 if (msg != NULL) {
197 buf += wxT(": ");
198 buf += msg;
199 }
200
201 // set the exception
202 wxPyBeginBlockThreads();
203 PyObject* s = wx2PyString(buf);
204 PyErr_SetObject(wxPyAssertionError, s);
205 Py_DECREF(s);
206 wxPyEndBlockThreads();
207
208 // Now when control returns to whatever API wrapper was called from
209 // Python it should detect that an exception is set and will return
210 // NULL, signalling the exception to Python.
211 }
212
213 // Send it to the normal log destination, but only if
214 // not _DIALOG because it will call this too
215 if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
216 wxString buf;
217 buf.Alloc(4096);
218 buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
219 file, line, cond);
220 if (msg != NULL) {
221 buf += wxT(": ");
222 buf += msg;
223 }
224 wxLogDebug(buf);
225 }
226
227 // do the normal wx assert dialog?
228 if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
229 wxApp::OnAssert(file, line, cond, msg);
230 }
231 }
232 #endif
233
234
235 /*static*/
236 bool wxPyApp::GetMacDefaultEncodingIsPC() {
237 #ifdef __WXMAC__
238 return s_macDefaultEncodingIsPC;
239 #else
240 return 0;
241 #endif
242 }
243
244 /*static*/
245 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
246 #ifdef __WXMAC__
247 return s_macSupportPCMenuShortcuts;
248 #else
249 return 0;
250 #endif
251 }
252
253 /*static*/
254 long wxPyApp::GetMacAboutMenuItemId() {
255 #ifdef __WXMAC__
256 return s_macAboutMenuItemId;
257 #else
258 return 0;
259 #endif
260 }
261
262 /*static*/
263 long wxPyApp::GetMacPreferencesMenuItemId() {
264 #ifdef __WXMAC__
265 return s_macPreferencesMenuItemId;
266 #else
267 return 0;
268 #endif
269 }
270
271 /*static*/
272 long wxPyApp::GetMacExitMenuItemId() {
273 #ifdef __WXMAC__
274 return s_macExitMenuItemId;
275 #else
276 return 0;
277 #endif
278 }
279
280 /*static*/
281 wxString wxPyApp::GetMacHelpMenuTitleName() {
282 #ifdef __WXMAC__
283 return s_macHelpMenuTitleName;
284 #else
285 return wxEmptyString;
286 #endif
287 }
288
289 /*static*/
290 void wxPyApp::SetMacDefaultEncodingIsPC(bool val) {
291 #ifdef __WXMAC__
292 s_macDefaultEncodingIsPC = val;
293 #endif
294 }
295
296 /*static*/
297 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
298 #ifdef __WXMAC__
299 s_macSupportPCMenuShortcuts = val;
300 #endif
301 }
302
303 /*static*/
304 void wxPyApp::SetMacAboutMenuItemId(long val) {
305 #ifdef __WXMAC__
306 s_macAboutMenuItemId = val;
307 #endif
308 }
309
310 /*static*/
311 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
312 #ifdef __WXMAC__
313 s_macPreferencesMenuItemId = val;
314 #endif
315 }
316
317 /*static*/
318 void wxPyApp::SetMacExitMenuItemId(long val) {
319 #ifdef __WXMAC__
320 s_macExitMenuItemId = val;
321 #endif
322 }
323
324 /*static*/
325 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
326 #ifdef __WXMAC__
327 s_macHelpMenuTitleName = val;
328 #endif
329 }
330
331
332
333 //---------------------------------------------------------------------
334 //----------------------------------------------------------------------
335
336
337 static char* wxPyCopyCString(const wxChar* src)
338 {
339 wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
340 size_t len = strlen(buff);
341 char* dest = new char[len+1];
342 strcpy(dest, buff);
343 return dest;
344 }
345
346 #if wxUSE_UNICODE
347 static char* wxPyCopyCString(const char* src) // we need a char version too
348 {
349 size_t len = strlen(src);
350 char* dest = new char[len+1];
351 strcpy(dest, src);
352 return dest;
353 }
354 #endif
355
356 static wxChar* wxPyCopyWString(const char *src)
357 {
358 //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
359 wxString str(src, *wxConvCurrent);
360 return copystring(str);
361 }
362
363 #if wxUSE_UNICODE
364 static wxChar* wxPyCopyWString(const wxChar *src)
365 {
366 return copystring(src);
367 }
368 #endif
369
370
371 //----------------------------------------------------------------------
372
373 // This is where we pick up the first part of the wxEntry functionality...
374 // The rest is in __wxStart and __wxCleanup. This function is called when
375 // wxcmodule is imported. (Before there is a wxApp object.)
376 void __wxPreStart(PyObject* moduleDict)
377 {
378
379 #ifdef __WXMSW__
380 // wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
381 #endif
382
383 #ifdef WXP_WITH_THREAD
384 PyEval_InitThreads();
385 wxPyTStates = new wxPyThreadStateArray;
386 wxPyTMutex = new wxMutex;
387 #endif
388
389 wxApp::CheckBuildOptions(wxBuildOptions());
390
391 wxPyAssertionError = PyErr_NewException("wxPython.wxc.wxPyAssertionError",
392 PyExc_AssertionError, NULL);
393 PyDict_SetItemString(moduleDict, "wxPyAssertionError", wxPyAssertionError);
394
395
396 // Bail out if there is already a wxApp created. This means that the
397 // toolkit has already been initialized, as in embedding wxPython in
398 // a C++ wxWindows app, so we don't need to call wxEntryStart.
399 if (wxTheApp != NULL) {
400 return;
401 }
402 wxPyDoCleanup = TRUE;
403
404 int argc = 0;
405 char** argv = NULL;
406 PyObject* sysargv = PySys_GetObject("argv");
407 if (sysargv != NULL) {
408 argc = PyList_Size(sysargv);
409 argv = new char*[argc+1];
410 int x;
411 for(x=0; x<argc; x++) {
412 PyObject *item = PyList_GetItem(sysargv, x);
413 argv[x] = wxPyCopyCString(Py2wxString(item));
414 }
415 argv[argc] = NULL;
416 }
417
418 wxEntryStart(argc, argv);
419 delete [] argv;
420 }
421
422
423 // Start the user application, user App's OnInit method is a parameter here
424 PyObject* __wxStart(PyObject* /* self */, PyObject* args)
425 {
426 PyObject* onInitFunc = NULL;
427 PyObject* arglist;
428 PyObject* result;
429 long bResult;
430
431 if (!PyArg_ParseTuple(args, "O", &onInitFunc))
432 return NULL;
433
434 // This is the next part of the wxEntry functionality...
435 int argc = 0;
436 wxChar** argv = NULL;
437 PyObject* sysargv = PySys_GetObject("argv");
438 if (sysargv != NULL) {
439 argc = PyList_Size(sysargv);
440 argv = new wxChar*[argc+1];
441 int x;
442 for(x=0; x<argc; x++) {
443 PyObject *pyArg = PyList_GetItem(sysargv, x);
444 argv[x] = wxPyCopyWString(Py2wxString(pyArg));
445 }
446 argv[argc] = NULL;
447 }
448
449 wxPythonApp->argc = argc;
450 wxPythonApp->argv = argv;
451
452 wxEntryInitGui();
453
454 // Call the Python App's OnInit function
455 arglist = PyTuple_New(0);
456 result = PyEval_CallObject(onInitFunc, arglist);
457 Py_DECREF(arglist);
458 if (!result) { // an exception was raised.
459 return NULL;
460 }
461
462 PyObject* pyint = PyNumber_Int(result);
463 if (! pyint) {
464 PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
465 goto error;
466 }
467 bResult = PyInt_AS_LONG(pyint);
468 if (! bResult) {
469 PyErr_SetString(PyExc_SystemExit, "OnInit returned FALSE, exiting...");
470 goto error;
471 }
472
473 #ifdef __WXGTK__
474 wxTheApp->m_initialized = (wxTopLevelWindows.GetCount() > 0);
475 #endif
476
477 Py_DECREF(result);
478 Py_DECREF(pyint);
479 Py_INCREF(Py_None);
480 return Py_None;
481
482 error:
483 Py_XDECREF(result);
484 Py_XDECREF(pyint);
485 return NULL;
486 }
487
488
489 void __wxCleanup() {
490 wxPyDoingCleanup = TRUE;
491 if (wxPyDoCleanup)
492 wxEntryCleanup();
493 #ifdef WXP_WITH_THREAD
494 delete wxPyTMutex;
495 wxPyTMutex = NULL;
496 wxPyTStates->Empty();
497 delete wxPyTStates;
498 wxPyTStates = NULL;
499 #endif
500 }
501
502
503
504
505 PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
506 {
507
508 if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
509 return NULL;
510
511 if (!PyDict_Check(wxPython_dict)) {
512 PyErr_SetString(PyExc_TypeError, "_wxSetDictionary must have dictionary object!");
513 return NULL;
514 }
515
516 if (! wxPyPtrTypeMap)
517 wxPyPtrTypeMap = PyDict_New();
518 PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
519
520
521 #ifdef __WXMOTIF__
522 #define wxPlatform "__WXMOTIF__"
523 #endif
524 #ifdef __WXX11__
525 #define wxPlatform "__WXX11__"
526 #endif
527 #ifdef __WXGTK__
528 #define wxPlatform "__WXGTK__"
529 #endif
530 #if defined(__WIN32__) || defined(__WXMSW__)
531 #define wxPlatform "__WXMSW__"
532 #endif
533 #ifdef __WXMAC__
534 #define wxPlatform "__WXMAC__"
535 #endif
536
537 #ifdef __WXDEBUG__
538 int wxdebug = 1;
539 #else
540 int wxdebug = 0;
541 #endif
542
543 PyDict_SetItemString(wxPython_dict, "wxPlatform", PyString_FromString(wxPlatform));
544 PyDict_SetItemString(wxPython_dict, "wxUSE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
545 PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
546
547 Py_INCREF(Py_None);
548 return Py_None;
549 }
550
551 //---------------------------------------------------------------------------
552
553 void wxPyClientData_dtor(wxPyClientData* self) {
554 if (! wxPyDoingCleanup) { // Don't do it during cleanup as Python
555 // may have already garbage collected the object...
556 wxPyBeginBlockThreads();
557 Py_DECREF(self->m_obj);
558 wxPyEndBlockThreads();
559 }
560 }
561
562 void wxPyUserData_dtor(wxPyUserData* self) {
563 if (! wxPyDoingCleanup) {
564 wxPyBeginBlockThreads();
565 Py_DECREF(self->m_obj);
566 wxPyEndBlockThreads();
567 }
568 }
569
570
571 // This is called when an OOR controled object is being destroyed. Although
572 // the C++ object is going away there is no way to force the Python object
573 // (and all references to it) to die too. This causes problems (crashes) in
574 // wxPython when a python shadow object attempts to call a C++ method using
575 // the now bogus pointer... So to try and prevent this we'll do a little black
576 // magic and change the class of the python instance to a class that will
577 // raise an exception for any attempt to call methods with it. See
578 // _wxPyDeadObject in _extras.py for the implementation of this class.
579 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
580
581 static PyObject* deadObjectClass = NULL;
582
583 wxPyBeginBlockThreads();
584 if (deadObjectClass == NULL) {
585 deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
586 wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
587 Py_INCREF(deadObjectClass);
588 }
589
590 // TODO: If wxPyDOingCleanup, should we skip the code below?
591
592 // Clear the instance's dictionary, put the name of the old class into the
593 // instance, and then reset the class to be the dead class.
594 if (self->m_obj->ob_refcnt > 1) { // but only if there is more than one reference
595 wxASSERT_MSG(PyInstance_Check(self->m_obj), wxT("m_obj not an instance!?!?!"));
596 PyInstanceObject* inst = (PyInstanceObject*)self->m_obj;
597 PyDict_Clear(inst->in_dict);
598 PyDict_SetItemString(inst->in_dict, "_name", inst->in_class->cl_name);
599 inst->in_class = (PyClassObject*)deadObjectClass;
600 Py_INCREF(deadObjectClass);
601 }
602 wxPyEndBlockThreads();
603 }
604
605 //---------------------------------------------------------------------------
606 // Stuff used by OOR to find the right wxPython class type to return and to
607 // build it.
608
609
610 // The pointer type map is used when the "pointer" type name generated by SWIG
611 // is not the same as the shadow class name, for example wxPyTreeCtrl
612 // vs. wxTreeCtrl. It needs to be referenced in Python as well as from C++,
613 // so we'll just make it a Python dictionary in the wx module's namespace.
614 // (See __wxSetDictionary)
615 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
616 if (! wxPyPtrTypeMap)
617 wxPyPtrTypeMap = PyDict_New();
618 PyDict_SetItemString(wxPyPtrTypeMap,
619 (char*)commonName,
620 PyString_FromString((char*)ptrName));
621 }
622
623
624
625 PyObject* wxPyClassExists(const wxString& className) {
626
627 PyObject* item;
628 wxString name(className);
629 char buff[64]; // should always be big enough...
630
631 if (!className)
632 return NULL;
633
634 // Try the name as-is first
635 sprintf(buff, "%sPtr", (const char*)name.mbc_str());
636 PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
637
638 // if not found see if there is a mapped name for it
639 if ( ! classobj) {
640 if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
641 name = wxString(PyString_AsString(item), *wxConvCurrent);
642 sprintf(buff, "%sPtr", (const char*)name.mbc_str());
643 classobj = PyDict_GetItemString(wxPython_dict, buff);
644 }
645 }
646
647 return classobj; // returns NULL if not found
648 }
649
650
651 PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
652 PyObject* target = NULL;
653 bool isEvtHandler = FALSE;
654
655 if (source) {
656 // If it's derived from wxEvtHandler then there may
657 // already be a pointer to a Python object that we can use
658 // in the OOR data.
659 if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
660 isEvtHandler = TRUE;
661 wxEvtHandler* eh = (wxEvtHandler*)source;
662 wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
663 if (data) {
664 target = data->m_obj;
665 Py_INCREF(target);
666 }
667 }
668
669 if (! target) {
670 // Otherwise make it the old fashioned way by making a
671 // new shadow object and putting this pointer in it.
672 wxClassInfo* info = source->GetClassInfo();
673 wxString name = info->GetClassName();
674 PyObject* klass = wxPyClassExists(name);
675 while (info && !klass) {
676 name = (wxChar*)info->GetBaseClassName1();
677 info = wxClassInfo::FindClass(name);
678 klass = wxPyClassExists(name);
679 }
680 if (info) {
681 target = wxPyConstructObject(source, name, klass, FALSE);
682 if (target && isEvtHandler)
683 ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
684 } else {
685 wxString msg(wxT("wxPython class not found for "));
686 msg += source->GetClassInfo()->GetClassName();
687 PyErr_SetString(PyExc_NameError, msg.mbc_str());
688 target = NULL;
689 }
690 }
691 } else { // source was NULL so return None.
692 Py_INCREF(Py_None); target = Py_None;
693 }
694 return target;
695 }
696
697
698 PyObject* wxPyMake_wxSizer(wxSizer* source) {
699 PyObject* target = NULL;
700
701 if (source && wxIsKindOf(source, wxSizer)) {
702 // If it's derived from wxSizer then there may
703 // already be a pointer to a Python object that we can use
704 // in the OOR data.
705 wxSizer* sz = (wxSizer*)source;
706 wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
707 if (data) {
708 target = data->m_obj;
709 Py_INCREF(target);
710 }
711 }
712 if (! target) {
713 target = wxPyMake_wxObject(source, FALSE);
714 if (target != Py_None)
715 ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
716 }
717 return target;
718 }
719
720
721
722 //---------------------------------------------------------------------------
723
724 PyObject* wxPyConstructObject(void* ptr,
725 const wxString& className,
726 PyObject* klass,
727 int setThisOwn) {
728
729 PyObject* obj;
730 PyObject* arg;
731 PyObject* item;
732 wxString name(className);
733 char swigptr[64]; // should always be big enough...
734 char buff[64];
735
736 if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
737 name = wxString(PyString_AsString(item), *wxConvCurrent);
738 }
739 sprintf(buff, "_%s_p", (const char*)name.mbc_str());
740 SWIG_MakePtr(swigptr, ptr, buff);
741
742 arg = Py_BuildValue("(s)", swigptr);
743 obj = PyInstance_New(klass, arg, NULL);
744 Py_DECREF(arg);
745
746 if (setThisOwn) {
747 PyObject* one = PyInt_FromLong(1);
748 PyObject_SetAttrString(obj, "thisown", one);
749 Py_DECREF(one);
750 }
751
752 return obj;
753 }
754
755
756 PyObject* wxPyConstructObject(void* ptr,
757 const wxString& className,
758 int setThisOwn) {
759 if (!ptr) {
760 Py_INCREF(Py_None);
761 return Py_None;
762 }
763
764 char buff[64]; // should always be big enough...
765 sprintf(buff, "%sPtr", (const char*)className.mbc_str());
766
767 wxASSERT_MSG(wxPython_dict, wxT("wxPython_dict is not set yet!!"));
768
769 PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
770 if (! classobj) {
771 wxString msg(wxT("wxPython class not found for "));
772 msg += className;
773 PyErr_SetString(PyExc_NameError, msg.mbc_str());
774 return NULL;
775 }
776
777 return wxPyConstructObject(ptr, className, classobj, setThisOwn);
778 }
779
780
781 //---------------------------------------------------------------------------
782
783
784 #ifdef WXP_WITH_THREAD
785 inline
786 unsigned long wxPyGetCurrentThreadId() {
787 return wxThread::GetCurrentId();
788 }
789
790 static PyThreadState* gs_shutdownTState;
791 static
792 PyThreadState* wxPyGetThreadState() {
793 if (wxPyTMutex == NULL) // Python is shutting down...
794 return gs_shutdownTState;
795
796 unsigned long ctid = wxPyGetCurrentThreadId();
797 PyThreadState* tstate = NULL;
798
799 wxPyTMutex->Lock();
800 for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
801 wxPyThreadState& info = wxPyTStates->Item(i);
802 if (info.tid == ctid) {
803 tstate = info.tstate;
804 break;
805 }
806 }
807 wxPyTMutex->Unlock();
808 wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
809 return tstate;
810 }
811
812 static
813 void wxPySaveThreadState(PyThreadState* tstate) {
814 if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
815 gs_shutdownTState = tstate;
816 return;
817 }
818 unsigned long ctid = wxPyGetCurrentThreadId();
819 wxPyTMutex->Lock();
820 for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
821 wxPyThreadState& info = wxPyTStates->Item(i);
822 if (info.tid == ctid) {
823 #if 0
824 if (info.tstate != tstate)
825 wxLogMessage("*** tstate mismatch!???");
826 #endif
827 // info.tstate = tstate; *** DO NOT update existing ones???
828 // Normally it will never change, but apparently COM callbacks
829 // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
830 // tstate which will then be garbage the next time we try to use
831 // it...
832 wxPyTMutex->Unlock();
833 return;
834 }
835 }
836 // not found, so add it...
837 wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
838 wxPyTMutex->Unlock();
839 }
840
841 #endif
842
843
844 // Calls from Python to wxWindows code are wrapped in calls to these
845 // functions:
846
847 PyThreadState* wxPyBeginAllowThreads() {
848 #ifdef WXP_WITH_THREAD
849 PyThreadState* saved = PyEval_SaveThread(); // Py_BEGIN_ALLOW_THREADS;
850 wxPySaveThreadState(saved);
851 return saved;
852 #else
853 return NULL;
854 #endif
855 }
856
857 void wxPyEndAllowThreads(PyThreadState* saved) {
858 #ifdef WXP_WITH_THREAD
859 PyEval_RestoreThread(saved); // Py_END_ALLOW_THREADS;
860 #endif
861 }
862
863
864
865 // Calls from wxWindows back to Python code, or even any PyObject
866 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
867
868 void wxPyBeginBlockThreads() {
869 #ifdef WXP_WITH_THREAD
870 PyThreadState* tstate = wxPyGetThreadState();
871 PyEval_RestoreThread(tstate);
872 #endif
873 }
874
875
876 void wxPyEndBlockThreads() {
877 #ifdef WXP_WITH_THREAD
878 // Is there any need to save it again?
879 // PyThreadState* tstate =
880 PyEval_SaveThread();
881 #endif
882 }
883
884
885 //---------------------------------------------------------------------------
886 // wxPyInputStream and wxPyCBInputStream methods
887
888
889 void wxPyInputStream::close() {
890 /* do nothing for now */
891 }
892
893 void wxPyInputStream::flush() {
894 /* do nothing for now */
895 }
896
897 bool wxPyInputStream::eof() {
898 if (m_wxis)
899 return m_wxis->Eof();
900 else
901 return TRUE;
902 }
903
904 wxPyInputStream::~wxPyInputStream() {
905 /* do nothing */
906 }
907
908
909
910
911 PyObject* wxPyInputStream::read(int size) {
912 PyObject* obj = NULL;
913 wxMemoryBuffer buf;
914 const int BUFSIZE = 1024;
915
916 // check if we have a real wxInputStream to work with
917 if (!m_wxis) {
918 wxPyBeginBlockThreads();
919 PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
920 wxPyEndBlockThreads();
921 return NULL;
922 }
923
924 if (size < 0) {
925 // read while bytes are available on the stream
926 while ( m_wxis->CanRead() ) {
927 m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
928 buf.UngetAppendBuf(m_wxis->LastRead());
929 }
930
931 } else { // Read only size number of characters
932 m_wxis->Read(buf.GetWriteBuf(size), size);
933 buf.UngetWriteBuf(m_wxis->LastRead());
934 }
935
936 // error check
937 wxPyBeginBlockThreads();
938 wxStreamError err = m_wxis->GetLastError();
939 if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
940 PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
941 }
942 else {
943 // We use only strings for the streams, not unicode
944 obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
945 }
946 wxPyEndBlockThreads();
947 return obj;
948 }
949
950
951 PyObject* wxPyInputStream::readline(int size) {
952 PyObject* obj = NULL;
953 wxMemoryBuffer buf;
954 int i;
955 char ch;
956
957 // check if we have a real wxInputStream to work with
958 if (!m_wxis) {
959 wxPyBeginBlockThreads();
960 PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
961 wxPyEndBlockThreads();
962 return NULL;
963 }
964
965 // read until \n or byte limit reached
966 for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
967 ch = m_wxis->GetC();
968 buf.AppendByte(ch);
969 }
970
971 // errorcheck
972 wxPyBeginBlockThreads();
973 wxStreamError err = m_wxis->GetLastError();
974 if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
975 PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
976 }
977 else {
978 // We use only strings for the streams, not unicode
979 obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
980 }
981 wxPyEndBlockThreads();
982 return obj;
983 }
984
985
986 PyObject* wxPyInputStream::readlines(int sizehint) {
987 PyObject* pylist;
988
989 // check if we have a real wxInputStream to work with
990 if (!m_wxis) {
991 wxPyBeginBlockThreads();
992 PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
993 wxPyEndBlockThreads();
994 return NULL;
995 }
996
997 // init list
998 wxPyBeginBlockThreads();
999 pylist = PyList_New(0);
1000 if (!pylist) {
1001 wxPyBeginBlockThreads();
1002 PyErr_NoMemory();
1003 wxPyEndBlockThreads();
1004 return NULL;
1005 }
1006
1007 // read sizehint bytes or until EOF
1008 int i;
1009 for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1010 PyObject* s = this->readline();
1011 if (s == NULL) {
1012 wxPyBeginBlockThreads();
1013 Py_DECREF(pylist);
1014 wxPyEndBlockThreads();
1015 return NULL;
1016 }
1017 wxPyBeginBlockThreads();
1018 PyList_Append(pylist, s);
1019 i += PyString_Size(s);
1020 wxPyEndBlockThreads();
1021 }
1022
1023 // error check
1024 wxStreamError err = m_wxis->GetLastError();
1025 if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1026 wxPyBeginBlockThreads();
1027 Py_DECREF(pylist);
1028 PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1029 wxPyEndBlockThreads();
1030 return NULL;
1031 }
1032
1033 return pylist;
1034 }
1035
1036
1037 void wxPyInputStream::seek(int offset, int whence) {
1038 if (m_wxis)
1039 m_wxis->SeekI(offset, wxSeekMode(whence));
1040 }
1041
1042 int wxPyInputStream::tell(){
1043 if (m_wxis)
1044 return m_wxis->TellI();
1045 else return 0;
1046 }
1047
1048
1049
1050
1051 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1052 : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1053 {}
1054
1055
1056 wxPyCBInputStream::~wxPyCBInputStream() {
1057 if (m_block) wxPyBeginBlockThreads();
1058 Py_XDECREF(m_read);
1059 Py_XDECREF(m_seek);
1060 Py_XDECREF(m_tell);
1061 if (m_block) wxPyEndBlockThreads();
1062 }
1063
1064
1065 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1066 if (block) wxPyBeginBlockThreads();
1067
1068 PyObject* read = getMethod(py, "read");
1069 PyObject* seek = getMethod(py, "seek");
1070 PyObject* tell = getMethod(py, "tell");
1071
1072 if (!read) {
1073 PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1074 Py_XDECREF(read);
1075 Py_XDECREF(seek);
1076 Py_XDECREF(tell);
1077 if (block) wxPyEndBlockThreads();
1078 return NULL;
1079 }
1080
1081 if (block) wxPyEndBlockThreads();
1082 return new wxPyCBInputStream(read, seek, tell, block);
1083 }
1084
1085
1086 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1087 return wxPyCBInputStream::create(py, block);
1088 }
1089
1090 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1091 if (!PyObject_HasAttrString(py, name))
1092 return NULL;
1093 PyObject* o = PyObject_GetAttrString(py, name);
1094 if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1095 Py_DECREF(o);
1096 return NULL;
1097 }
1098 return o;
1099 }
1100
1101
1102 size_t wxPyCBInputStream::GetSize() const {
1103 wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1104 if (m_seek && m_tell) {
1105 off_t temp = self->OnSysTell();
1106 off_t ret = self->OnSysSeek(0, wxFromEnd);
1107 self->OnSysSeek(temp, wxFromStart);
1108 return ret;
1109 }
1110 else
1111 return 0;
1112 }
1113
1114
1115 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1116 if (bufsize == 0)
1117 return 0;
1118
1119 wxPyBeginBlockThreads();
1120 PyObject* arglist = Py_BuildValue("(i)", bufsize);
1121 PyObject* result = PyEval_CallObject(m_read, arglist);
1122 Py_DECREF(arglist);
1123
1124 size_t o = 0;
1125 if ((result != NULL) && PyString_Check(result)) {
1126 o = PyString_Size(result);
1127 if (o == 0)
1128 m_lasterror = wxSTREAM_EOF;
1129 if (o > bufsize)
1130 o = bufsize;
1131 memcpy((char*)buffer, PyString_AsString(result), o); // strings only, not unicode...
1132 Py_DECREF(result);
1133
1134 }
1135 else
1136 m_lasterror = wxSTREAM_READ_ERROR;
1137 wxPyEndBlockThreads();
1138 return o;
1139 }
1140
1141 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1142 m_lasterror = wxSTREAM_WRITE_ERROR;
1143 return 0;
1144 }
1145
1146 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
1147 wxPyBeginBlockThreads();
1148 PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1149 PyObject* result = PyEval_CallObject(m_seek, arglist);
1150 Py_DECREF(arglist);
1151 Py_XDECREF(result);
1152 wxPyEndBlockThreads();
1153 return OnSysTell();
1154 }
1155
1156 off_t wxPyCBInputStream::OnSysTell() const {
1157 wxPyBeginBlockThreads();
1158 PyObject* arglist = Py_BuildValue("()");
1159 PyObject* result = PyEval_CallObject(m_tell, arglist);
1160 Py_DECREF(arglist);
1161 off_t o = 0;
1162 if (result != NULL) {
1163 o = PyInt_AsLong(result);
1164 Py_DECREF(result);
1165 };
1166 wxPyEndBlockThreads();
1167 return o;
1168 }
1169
1170 //----------------------------------------------------------------------
1171
1172 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1173
1174 wxPyCallback::wxPyCallback(PyObject* func) {
1175 m_func = func;
1176 Py_INCREF(m_func);
1177 }
1178
1179 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1180 m_func = other.m_func;
1181 Py_INCREF(m_func);
1182 }
1183
1184 wxPyCallback::~wxPyCallback() {
1185 wxPyBeginBlockThreads();
1186 Py_DECREF(m_func);
1187 wxPyEndBlockThreads();
1188 }
1189
1190
1191
1192 // This function is used for all events destined for Python event handlers.
1193 void wxPyCallback::EventThunker(wxEvent& event) {
1194 wxPyCallback* cb = (wxPyCallback*)event.m_callbackUserData;
1195 PyObject* func = cb->m_func;
1196 PyObject* result;
1197 PyObject* arg;
1198 PyObject* tuple;
1199
1200
1201 wxPyBeginBlockThreads();
1202 wxString className = event.GetClassInfo()->GetClassName();
1203
1204 if (className == wxT("wxPyEvent"))
1205 arg = ((wxPyEvent*)&event)->GetSelf();
1206 else if (className == wxT("wxPyCommandEvent"))
1207 arg = ((wxPyCommandEvent*)&event)->GetSelf();
1208 else {
1209 arg = wxPyConstructObject((void*)&event, className);
1210 }
1211
1212 tuple = PyTuple_New(1);
1213 PyTuple_SET_ITEM(tuple, 0, arg);
1214 result = PyEval_CallObject(func, tuple);
1215 Py_DECREF(tuple);
1216 if (result) {
1217 Py_DECREF(result);
1218 PyErr_Clear(); // Just in case...
1219 } else {
1220 PyErr_Print();
1221 }
1222 wxPyEndBlockThreads();
1223 }
1224
1225
1226 //----------------------------------------------------------------------
1227
1228 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1229 m_lastFound = NULL;
1230 m_self = other.m_self;
1231 m_class = other.m_class;
1232 if (m_self) {
1233 Py_INCREF(m_self);
1234 Py_INCREF(m_class);
1235 }
1236 }
1237
1238
1239 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1240 m_self = self;
1241 m_class = klass;
1242 m_incRef = incref;
1243 if (incref) {
1244 Py_INCREF(m_self);
1245 Py_INCREF(m_class);
1246 }
1247 }
1248
1249
1250 #if PYTHON_API_VERSION >= 1011
1251
1252 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1253 // in which the method was defined. Starting with 2.2 it returns
1254 // "class that asked for the method" which seems totally bogus to me
1255 // but apprently it fixes some obscure problem waiting to happen in
1256 // Python. Since the API was not documented Guido and the gang felt
1257 // safe in changing it. Needless to say that totally screwed up the
1258 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1259 // code to find the class where the method is actually defined...
1260
1261 static
1262 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1263 {
1264 int i, n;
1265
1266 if (PyType_Check(klass)) { // new style classes
1267 // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1268 // (TODO: This part is not tested yet, so I'm not sure it is correct...)
1269 PyTypeObject* type = (PyTypeObject*)klass;
1270 PyObject *mro, *res, *base, *dict;
1271 /* Look in tp_dict of types in MRO */
1272 mro = type->tp_mro;
1273 assert(PyTuple_Check(mro));
1274 n = PyTuple_GET_SIZE(mro);
1275 for (i = 0; i < n; i++) {
1276 base = PyTuple_GET_ITEM(mro, i);
1277 if (PyClass_Check(base))
1278 dict = ((PyClassObject *)base)->cl_dict;
1279 else {
1280 assert(PyType_Check(base));
1281 dict = ((PyTypeObject *)base)->tp_dict;
1282 }
1283 assert(dict && PyDict_Check(dict));
1284 res = PyDict_GetItem(dict, name);
1285 if (res != NULL)
1286 return base;
1287 }
1288 return NULL;
1289 }
1290
1291 else if (PyClass_Check(klass)) { // old style classes
1292 // This code is borrowed/adapted from class_lookup in classobject.c
1293 PyClassObject* cp = (PyClassObject*)klass;
1294 PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1295 if (value != NULL) {
1296 return (PyObject*)cp;
1297 }
1298 n = PyTuple_Size(cp->cl_bases);
1299 for (i = 0; i < n; i++) {
1300 PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1301 PyObject *v = PyFindClassWithAttr(base, name);
1302 if (v != NULL)
1303 return v;
1304 }
1305 return NULL;
1306 }
1307 return NULL;
1308 }
1309 #endif
1310
1311
1312 static
1313 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1314 {
1315 PyObject* mgc = PyMethod_GET_CLASS(method);
1316
1317 #if PYTHON_API_VERSION <= 1010 // prior to Python 2.2, the easy way
1318 return mgc;
1319 #else // 2.2 and after, the hard way...
1320
1321 PyObject* nameo = PyString_FromString(name);
1322 PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1323 Py_DECREF(nameo);
1324 return klass;
1325 #endif
1326 }
1327
1328
1329
1330 bool wxPyCallbackHelper::findCallback(const char* name) const {
1331 wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1332 self->m_lastFound = NULL;
1333
1334 // If the object (m_self) has an attibute of the given name...
1335 if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1336 PyObject *method, *klass;
1337 method = PyObject_GetAttrString(m_self, (char*)name);
1338
1339 // ...and if that attribute is a method, and if that method's class is
1340 // not from a base class...
1341 if (PyMethod_Check(method) &&
1342 (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1343 ((klass == m_class) || PyClass_IsSubclass(klass, m_class))) {
1344
1345 // ...then we'll save a pointer to the method so callCallback can call it.
1346 self->m_lastFound = method;
1347 }
1348 else {
1349 Py_DECREF(method);
1350 }
1351 }
1352 return m_lastFound != NULL;
1353 }
1354
1355
1356 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1357 PyObject* result;
1358 int retval = FALSE;
1359
1360 result = callCallbackObj(argTuple);
1361 if (result) { // Assumes an integer return type...
1362 retval = PyInt_AsLong(result);
1363 Py_DECREF(result);
1364 PyErr_Clear(); // forget about it if it's not...
1365 }
1366 return retval;
1367 }
1368
1369 // Invoke the Python callable object, returning the raw PyObject return
1370 // value. Caller should DECREF the return value and also call PyEval_SaveThread.
1371 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1372 PyObject* result;
1373
1374 // Save a copy of the pointer in case the callback generates another
1375 // callback. In that case m_lastFound will have a different value when
1376 // it gets back here...
1377 PyObject* method = m_lastFound;
1378
1379 result = PyEval_CallObject(method, argTuple);
1380 Py_DECREF(argTuple);
1381 Py_DECREF(method);
1382 if (!result) {
1383 PyErr_Print();
1384 }
1385 return result;
1386 }
1387
1388
1389 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1390 cbh.setSelf(self, klass, incref);
1391 }
1392
1393 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1394 return cbh.findCallback(name);
1395 }
1396
1397 int wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1398 return cbh.callCallback(argTuple);
1399 }
1400
1401 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1402 return cbh.callCallbackObj(argTuple);
1403 }
1404
1405
1406 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1407 if (cbh->m_incRef) {
1408 wxPyBeginBlockThreads();
1409 Py_XDECREF(cbh->m_self);
1410 Py_XDECREF(cbh->m_class);
1411 wxPyEndBlockThreads();
1412 }
1413 }
1414
1415 //---------------------------------------------------------------------------
1416 //---------------------------------------------------------------------------
1417 // These event classes can be derived from in Python and passed through the event
1418 // system without losing anything. They do this by keeping a reference to
1419 // themselves and some special case handling in wxPyCallback::EventThunker.
1420
1421
1422 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1423 //m_self = Py_None; // **** We don't do normal ref counting to prevent
1424 //Py_INCREF(m_self); // circular loops...
1425 m_cloned = FALSE;
1426 }
1427
1428 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1429 wxPyBeginBlockThreads();
1430 if (m_cloned)
1431 Py_DECREF(m_self);
1432 wxPyEndBlockThreads();
1433 }
1434
1435 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1436 wxPyBeginBlockThreads();
1437 if (m_cloned)
1438 Py_DECREF(m_self);
1439 m_self = self;
1440 if (clone) {
1441 Py_INCREF(m_self);
1442 m_cloned = TRUE;
1443 }
1444 wxPyEndBlockThreads();
1445 }
1446
1447 PyObject* wxPyEvtSelfRef::GetSelf() const {
1448 Py_INCREF(m_self);
1449 return m_self;
1450 }
1451
1452
1453 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1454 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1455
1456
1457 wxPyEvent::wxPyEvent(int id)
1458 : wxEvent(id) {
1459 }
1460
1461
1462 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1463 : wxEvent(evt)
1464 {
1465 SetSelf(evt.m_self, TRUE);
1466 }
1467
1468
1469 wxPyEvent::~wxPyEvent() {
1470 }
1471
1472
1473 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1474 : wxCommandEvent(commandType, id) {
1475 }
1476
1477
1478 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1479 : wxCommandEvent(evt)
1480 {
1481 SetSelf(evt.m_self, TRUE);
1482 }
1483
1484
1485 wxPyCommandEvent::~wxPyCommandEvent() {
1486 }
1487
1488
1489
1490
1491 //---------------------------------------------------------------------------
1492 //---------------------------------------------------------------------------
1493
1494
1495 wxPyTimer::wxPyTimer(PyObject* callback) {
1496 func = callback;
1497 Py_INCREF(func);
1498 }
1499
1500 wxPyTimer::~wxPyTimer() {
1501 wxPyBeginBlockThreads();
1502 Py_DECREF(func);
1503 wxPyEndBlockThreads();
1504 }
1505
1506 void wxPyTimer::Notify() {
1507 if (!func || func == Py_None) {
1508 wxTimer::Notify();
1509 }
1510 else {
1511 wxPyBeginBlockThreads();
1512
1513 PyObject* result;
1514 PyObject* args = Py_BuildValue("()");
1515
1516 result = PyEval_CallObject(func, args);
1517 Py_DECREF(args);
1518 if (result) {
1519 Py_DECREF(result);
1520 PyErr_Clear();
1521 } else {
1522 PyErr_Print();
1523 }
1524
1525 wxPyEndBlockThreads();
1526 }
1527 }
1528
1529
1530
1531 //---------------------------------------------------------------------------
1532 //---------------------------------------------------------------------------
1533 // Convert a wxList to a Python List
1534
1535 PyObject* wxPy_ConvertList(wxListBase* listbase, const char* className) {
1536 wxList* list = (wxList*)listbase; // this is probably bad...
1537 PyObject* pyList;
1538 PyObject* pyObj;
1539 wxObject* wxObj;
1540 wxNode* node = list->GetFirst();
1541
1542 wxPyBeginBlockThreads();
1543 pyList = PyList_New(0);
1544 while (node) {
1545 wxObj = node->GetData();
1546 pyObj = wxPyMake_wxObject(wxObj); //wxPyConstructObject(wxObj, className);
1547 PyList_Append(pyList, pyObj);
1548 node = node->GetNext();
1549 }
1550 wxPyEndBlockThreads();
1551 return pyList;
1552 }
1553
1554 //----------------------------------------------------------------------
1555
1556 long wxPyGetWinHandle(wxWindow* win) {
1557 #ifdef __WXMSW__
1558 return (long)win->GetHandle();
1559 #endif
1560
1561 // Find and return the actual X-Window.
1562 #ifdef __WXGTK__
1563 if (win->m_wxwindow) {
1564 #ifdef __WXGTK20__
1565 return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window);
1566 #else
1567 GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1568 if (bwin) {
1569 return (long)bwin->xwindow;
1570 }
1571 #endif
1572 }
1573 #endif
1574 return 0;
1575 }
1576
1577 //----------------------------------------------------------------------
1578 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1579 // included in every file over and over again...
1580
1581 #if PYTHON_API_VERSION >= 1009
1582 static char* wxStringErrorMsg = "String or Unicode type required";
1583 #else
1584 static char* wxStringErrorMsg = "String type required";
1585 #endif
1586
1587
1588 wxString* wxString_in_helper(PyObject* source) {
1589 wxString* target;
1590 #if PYTHON_API_VERSION >= 1009 // Have Python unicode API
1591 if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1592 PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1593 return NULL;
1594 }
1595 #if wxUSE_UNICODE
1596 if (PyUnicode_Check(source)) {
1597 target = new wxString();
1598 size_t len = PyUnicode_GET_SIZE(source);
1599 if (len) {
1600 PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len);
1601 target->UngetWriteBuf();
1602 }
1603 } else {
1604 // It is a string, get pointers to it and transform to unicode
1605 char* tmpPtr; int tmpSize;
1606 PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1607 target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1608 }
1609 #else
1610 char* tmpPtr; int tmpSize;
1611 if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1612 PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1613 return NULL;
1614 }
1615 target = new wxString(tmpPtr, tmpSize);
1616 #endif // wxUSE_UNICODE
1617
1618 #else // No Python unicode API (1.5.2)
1619 if (!PyString_Check(source)) {
1620 PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1621 return NULL;
1622 }
1623 target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1624 #endif
1625 return target;
1626 }
1627
1628
1629 // Similar to above except doesn't use "new" and doesn't set an exception
1630 wxString Py2wxString(PyObject* source)
1631 {
1632 wxString target;
1633 bool doDecRef = FALSE;
1634
1635 #if PYTHON_API_VERSION >= 1009 // Have Python unicode API
1636 if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1637 // Convert to String if not one already... (TODO: Unicode too?)
1638 source = PyObject_Str(source);
1639 doDecRef = TRUE;
1640 }
1641
1642 #if wxUSE_UNICODE
1643 if (PyUnicode_Check(source)) {
1644 size_t len = PyUnicode_GET_SIZE(source);
1645 if (len) {
1646 PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len);
1647 target.UngetWriteBuf();
1648 }
1649 } else {
1650 // It is a string, get pointers to it and transform to unicode
1651 char* tmpPtr; int tmpSize;
1652 PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1653 target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1654 }
1655 #else
1656 char* tmpPtr; int tmpSize;
1657 PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1658 target = wxString(tmpPtr, tmpSize);
1659 #endif // wxUSE_UNICODE
1660
1661 #else // No Python unicode API (1.5.2)
1662 if (!PyString_Check(source)) {
1663 // Convert to String if not one already...
1664 source = PyObject_Str(source);
1665 doDecRef = TRUE;
1666 }
1667 target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1668 #endif
1669
1670 if (doDecRef)
1671 Py_DECREF(source);
1672 return target;
1673 }
1674
1675
1676 // Make either a Python String or Unicode object, depending on build mode
1677 PyObject* wx2PyString(const wxString& src)
1678 {
1679 PyObject* str;
1680 #if wxUSE_UNICODE
1681 str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1682 #else
1683 str = PyString_FromStringAndSize(src.c_str(), src.Len());
1684 #endif
1685 return str;
1686 }
1687
1688
1689 //----------------------------------------------------------------------
1690
1691
1692 byte* byte_LIST_helper(PyObject* source) {
1693 if (!PyList_Check(source)) {
1694 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1695 return NULL;
1696 }
1697 int count = PyList_Size(source);
1698 byte* temp = new byte[count];
1699 if (! temp) {
1700 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1701 return NULL;
1702 }
1703 for (int x=0; x<count; x++) {
1704 PyObject* o = PyList_GetItem(source, x);
1705 if (! PyInt_Check(o)) {
1706 PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1707 return NULL;
1708 }
1709 temp[x] = (byte)PyInt_AsLong(o);
1710 }
1711 return temp;
1712 }
1713
1714
1715 int* int_LIST_helper(PyObject* source) {
1716 if (!PyList_Check(source)) {
1717 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1718 return NULL;
1719 }
1720 int count = PyList_Size(source);
1721 int* temp = new int[count];
1722 if (! temp) {
1723 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1724 return NULL;
1725 }
1726 for (int x=0; x<count; x++) {
1727 PyObject* o = PyList_GetItem(source, x);
1728 if (! PyInt_Check(o)) {
1729 PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1730 return NULL;
1731 }
1732 temp[x] = PyInt_AsLong(o);
1733 }
1734 return temp;
1735 }
1736
1737
1738 long* long_LIST_helper(PyObject* source) {
1739 if (!PyList_Check(source)) {
1740 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1741 return NULL;
1742 }
1743 int count = PyList_Size(source);
1744 long* temp = new long[count];
1745 if (! temp) {
1746 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1747 return NULL;
1748 }
1749 for (int x=0; x<count; x++) {
1750 PyObject* o = PyList_GetItem(source, x);
1751 if (! PyInt_Check(o)) {
1752 PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1753 return NULL;
1754 }
1755 temp[x] = PyInt_AsLong(o);
1756 }
1757 return temp;
1758 }
1759
1760
1761 char** string_LIST_helper(PyObject* source) {
1762 if (!PyList_Check(source)) {
1763 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1764 return NULL;
1765 }
1766 int count = PyList_Size(source);
1767 char** temp = new char*[count];
1768 if (! temp) {
1769 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1770 return NULL;
1771 }
1772 for (int x=0; x<count; x++) {
1773 PyObject* o = PyList_GetItem(source, x);
1774 if (! PyString_Check(o)) {
1775 PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1776 return NULL;
1777 }
1778 temp[x] = PyString_AsString(o);
1779 }
1780 return temp;
1781 }
1782
1783 //--------------------------------
1784 // Part of patch from Tim Hochberg
1785 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1786 if (PyInt_Check(o1) && PyInt_Check(o2)) {
1787 point->x = PyInt_AS_LONG(o1);
1788 point->y = PyInt_AS_LONG(o2);
1789 return true;
1790 }
1791 if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1792 point->x = (int)PyFloat_AS_DOUBLE(o1);
1793 point->y = (int)PyFloat_AS_DOUBLE(o2);
1794 return true;
1795 }
1796 if (PyInstance_Check(o1) || PyInstance_Check(o2)) {
1797 // Disallow instances because they can cause havok
1798 return false;
1799 }
1800 if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1801 // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1802 point->x = PyInt_AsLong(o1);
1803 point->y = PyInt_AsLong(o2);
1804 return true;
1805 }
1806 return false;
1807 }
1808
1809
1810 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1811 // Putting all of the declarations here allows
1812 // us to put the error handling all in one place.
1813 int x;
1814 wxPoint* temp;
1815 PyObject *o, *o1, *o2;
1816 bool isFast = PyList_Check(source) || PyTuple_Check(source);
1817
1818 if (!PySequence_Check(source)) {
1819 goto error0;
1820 }
1821
1822 // The length of the sequence is returned in count.
1823 *count = PySequence_Length(source);
1824 if (*count < 0) {
1825 goto error0;
1826 }
1827
1828 temp = new wxPoint[*count];
1829 if (!temp) {
1830 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1831 return NULL;
1832 }
1833 for (x=0; x<*count; x++) {
1834 // Get an item: try fast way first.
1835 if (isFast) {
1836 o = PySequence_Fast_GET_ITEM(source, x);
1837 }
1838 else {
1839 o = PySequence_GetItem(source, x);
1840 if (o == NULL) {
1841 goto error1;
1842 }
1843 }
1844
1845 // Convert o to wxPoint.
1846 if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1847 (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1848 o1 = PySequence_Fast_GET_ITEM(o, 0);
1849 o2 = PySequence_Fast_GET_ITEM(o, 1);
1850 if (!wxPointFromObjects(o1, o2, &temp[x])) {
1851 goto error2;
1852 }
1853 }
1854 else if (PyInstance_Check(o)) {
1855 wxPoint* pt;
1856 if (SWIG_GetPtrObj(o, (void **)&pt, "_wxPoint_p")) {
1857 goto error2;
1858 }
1859 temp[x] = *pt;
1860 }
1861 else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1862 o1 = PySequence_GetItem(o, 0);
1863 o2 = PySequence_GetItem(o, 1);
1864 if (!wxPointFromObjects(o1, o2, &temp[x])) {
1865 goto error3;
1866 }
1867 Py_DECREF(o1);
1868 Py_DECREF(o2);
1869 }
1870 else {
1871 goto error2;
1872 }
1873 // Clean up.
1874 if (!isFast)
1875 Py_DECREF(o);
1876 }
1877 return temp;
1878
1879 error3:
1880 Py_DECREF(o1);
1881 Py_DECREF(o2);
1882 error2:
1883 if (!isFast)
1884 Py_DECREF(o);
1885 error1:
1886 delete [] temp;
1887 error0:
1888 PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
1889 return NULL;
1890 }
1891 // end of patch
1892 //------------------------------
1893
1894
1895 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
1896 if (!PyList_Check(source)) {
1897 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1898 return NULL;
1899 }
1900 int count = PyList_Size(source);
1901 wxBitmap** temp = new wxBitmap*[count];
1902 if (! temp) {
1903 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1904 return NULL;
1905 }
1906 for (int x=0; x<count; x++) {
1907 PyObject* o = PyList_GetItem(source, x);
1908 if (PyInstance_Check(o)) {
1909 wxBitmap* pt;
1910 if (SWIG_GetPtrObj(o, (void **) &pt,"_wxBitmap_p")) {
1911 PyErr_SetString(PyExc_TypeError,"Expected _wxBitmap_p.");
1912 return NULL;
1913 }
1914 temp[x] = pt;
1915 }
1916 else {
1917 PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
1918 return NULL;
1919 }
1920 }
1921 return temp;
1922 }
1923
1924
1925
1926 wxString* wxString_LIST_helper(PyObject* source) {
1927 if (!PyList_Check(source)) {
1928 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1929 return NULL;
1930 }
1931 int count = PyList_Size(source);
1932 wxString* temp = new wxString[count];
1933 if (! temp) {
1934 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1935 return NULL;
1936 }
1937 for (int x=0; x<count; x++) {
1938 PyObject* o = PyList_GetItem(source, x);
1939 #if PYTHON_API_VERSION >= 1009
1940 if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
1941 PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
1942 return NULL;
1943 }
1944 #else
1945 if (! PyString_Check(o)) {
1946 PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1947 return NULL;
1948 }
1949 #endif
1950
1951 wxString* pStr = wxString_in_helper(o);
1952 temp[x] = *pStr;
1953 delete pStr;
1954 }
1955 return temp;
1956 }
1957
1958
1959 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
1960 if (!PyList_Check(source)) {
1961 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1962 return NULL;
1963 }
1964 int count = PyList_Size(source);
1965 wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
1966 if (! temp) {
1967 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1968 return NULL;
1969 }
1970 for (int x=0; x<count; x++) {
1971 PyObject* o = PyList_GetItem(source, x);
1972 if (PyInstance_Check(o)) {
1973 wxAcceleratorEntry* ae;
1974 if (SWIG_GetPtrObj(o, (void **) &ae,"_wxAcceleratorEntry_p")) {
1975 PyErr_SetString(PyExc_TypeError,"Expected _wxAcceleratorEntry_p.");
1976 return NULL;
1977 }
1978 temp[x] = *ae;
1979 }
1980 else if (PyTuple_Check(o)) {
1981 PyObject* o1 = PyTuple_GetItem(o, 0);
1982 PyObject* o2 = PyTuple_GetItem(o, 1);
1983 PyObject* o3 = PyTuple_GetItem(o, 2);
1984 temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
1985 }
1986 else {
1987 PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
1988 return NULL;
1989 }
1990 }
1991 return temp;
1992 }
1993
1994
1995 wxPen** wxPen_LIST_helper(PyObject* source) {
1996 if (!PyList_Check(source)) {
1997 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1998 return NULL;
1999 }
2000 int count = PyList_Size(source);
2001 wxPen** temp = new wxPen*[count];
2002 if (!temp) {
2003 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2004 return NULL;
2005 }
2006 for (int x=0; x<count; x++) {
2007 PyObject* o = PyList_GetItem(source, x);
2008 if (PyInstance_Check(o)) {
2009 wxPen* pt;
2010 if (SWIG_GetPtrObj(o, (void **) &pt,"_wxPen_p")) {
2011 delete temp;
2012 PyErr_SetString(PyExc_TypeError,"Expected _wxPen_p.");
2013 return NULL;
2014 }
2015 temp[x] = pt;
2016 }
2017 else {
2018 delete temp;
2019 PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2020 return NULL;
2021 }
2022 }
2023 return temp;
2024 }
2025
2026
2027 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2028 bool isFast = PyList_Check(source) || PyTuple_Check(source);
2029 PyObject *o1, *o2;
2030
2031 if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2032 return FALSE;
2033
2034 if (isFast) {
2035 o1 = PySequence_Fast_GET_ITEM(source, 0);
2036 o2 = PySequence_Fast_GET_ITEM(source, 1);
2037 }
2038 else {
2039 o1 = PySequence_GetItem(source, 0);
2040 o2 = PySequence_GetItem(source, 1);
2041 }
2042
2043 *i1 = PyInt_AsLong(o1);
2044 *i2 = PyInt_AsLong(o2);
2045
2046 if (! isFast) {
2047 Py_DECREF(o1);
2048 Py_DECREF(o2);
2049 }
2050 return TRUE;
2051 }
2052
2053
2054 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2055 bool isFast = PyList_Check(source) || PyTuple_Check(source);
2056 PyObject *o1, *o2, *o3, *o4;
2057
2058 if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2059 return FALSE;
2060
2061 if (isFast) {
2062 o1 = PySequence_Fast_GET_ITEM(source, 0);
2063 o2 = PySequence_Fast_GET_ITEM(source, 1);
2064 o3 = PySequence_Fast_GET_ITEM(source, 2);
2065 o4 = PySequence_Fast_GET_ITEM(source, 3);
2066 }
2067 else {
2068 o1 = PySequence_GetItem(source, 0);
2069 o2 = PySequence_GetItem(source, 1);
2070 o3 = PySequence_GetItem(source, 2);
2071 o4 = PySequence_GetItem(source, 3);
2072 }
2073
2074 *i1 = PyInt_AsLong(o1);
2075 *i2 = PyInt_AsLong(o2);
2076 *i3 = PyInt_AsLong(o3);
2077 *i4 = PyInt_AsLong(o4);
2078
2079 if (! isFast) {
2080 Py_DECREF(o1);
2081 Py_DECREF(o2);
2082 Py_DECREF(o3);
2083 Py_DECREF(o4);
2084 }
2085 return TRUE;
2086 }
2087
2088
2089 //----------------------------------------------------------------------
2090
2091 bool wxSize_helper(PyObject* source, wxSize** obj) {
2092
2093 // If source is an object instance then it may already be the right type
2094 if (PyInstance_Check(source)) {
2095 wxSize* ptr;
2096 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxSize_p"))
2097 goto error;
2098 *obj = ptr;
2099 return TRUE;
2100 }
2101 // otherwise a 2-tuple of integers is expected
2102 else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2103 PyObject* o1 = PySequence_GetItem(source, 0);
2104 PyObject* o2 = PySequence_GetItem(source, 1);
2105 if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2106 Py_DECREF(o1);
2107 Py_DECREF(o2);
2108 goto error;
2109 }
2110 **obj = wxSize(PyInt_AsLong(o1), PyInt_AsLong(o2));
2111 Py_DECREF(o1);
2112 Py_DECREF(o2);
2113 return TRUE;
2114 }
2115
2116 error:
2117 PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxSize object.");
2118 return FALSE;
2119 }
2120
2121
2122 bool wxPoint_helper(PyObject* source, wxPoint** obj) {
2123
2124 // If source is an object instance then it may already be the right type
2125 if (PyInstance_Check(source)) {
2126 wxPoint* ptr;
2127 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint_p"))
2128 goto error;
2129 *obj = ptr;
2130 return TRUE;
2131 }
2132 // otherwise a length-2 sequence of integers is expected
2133 if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2134 PyObject* o1 = PySequence_GetItem(source, 0);
2135 PyObject* o2 = PySequence_GetItem(source, 1);
2136 // This should really check for integers, not numbers -- but that would break code.
2137 if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2138 Py_DECREF(o1);
2139 Py_DECREF(o2);
2140 goto error;
2141 }
2142 **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
2143 Py_DECREF(o1);
2144 Py_DECREF(o2);
2145 return TRUE;
2146 }
2147 error:
2148 PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxPoint object.");
2149 return FALSE;
2150 }
2151
2152
2153
2154 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2155
2156 // If source is an object instance then it may already be the right type
2157 if (PyInstance_Check(source)) {
2158 wxRealPoint* ptr;
2159 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRealPoint_p"))
2160 goto error;
2161 *obj = ptr;
2162 return TRUE;
2163 }
2164 // otherwise a 2-tuple of floats is expected
2165 else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2166 PyObject* o1 = PySequence_GetItem(source, 0);
2167 PyObject* o2 = PySequence_GetItem(source, 1);
2168 if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2169 Py_DECREF(o1);
2170 Py_DECREF(o2);
2171 goto error;
2172 }
2173 **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2174 Py_DECREF(o1);
2175 Py_DECREF(o2);
2176 return TRUE;
2177 }
2178
2179 error:
2180 PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2181 return FALSE;
2182 }
2183
2184
2185
2186
2187 bool wxRect_helper(PyObject* source, wxRect** obj) {
2188
2189 // If source is an object instance then it may already be the right type
2190 if (PyInstance_Check(source)) {
2191 wxRect* ptr;
2192 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRect_p"))
2193 goto error;
2194 *obj = ptr;
2195 return TRUE;
2196 }
2197 // otherwise a 4-tuple of integers is expected
2198 else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2199 PyObject* o1 = PySequence_GetItem(source, 0);
2200 PyObject* o2 = PySequence_GetItem(source, 1);
2201 PyObject* o3 = PySequence_GetItem(source, 2);
2202 PyObject* o4 = PySequence_GetItem(source, 3);
2203 if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2204 !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2205 Py_DECREF(o1);
2206 Py_DECREF(o2);
2207 Py_DECREF(o3);
2208 Py_DECREF(o4);
2209 goto error;
2210 }
2211 **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2212 PyInt_AsLong(o3), PyInt_AsLong(o4));
2213 Py_DECREF(o1);
2214 Py_DECREF(o2);
2215 Py_DECREF(o3);
2216 Py_DECREF(o4);
2217 return TRUE;
2218 }
2219
2220 error:
2221 PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2222 return FALSE;
2223 }
2224
2225
2226
2227 bool wxColour_helper(PyObject* source, wxColour** obj) {
2228
2229 // If source is an object instance then it may already be the right type
2230 if (PyInstance_Check(source)) {
2231 wxColour* ptr;
2232 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxColour_p"))
2233 goto error;
2234 *obj = ptr;
2235 return TRUE;
2236 }
2237 // otherwise check for a string
2238 else if (PyString_Check(source) || PyUnicode_Check(source)) {
2239 wxString spec = Py2wxString(source);
2240 if (spec.GetChar(0) == '#' && spec.Length() == 7) { // It's #RRGGBB
2241 long red, green, blue;
2242 red = green = blue = 0;
2243 spec.Mid(1,2).ToLong(&red, 16);
2244 spec.Mid(3,2).ToLong(&green, 16);
2245 spec.Mid(5,2).ToLong(&blue, 16);
2246
2247 **obj = wxColour(red, green, blue);
2248 return TRUE;
2249 }
2250 else { // it's a colour name
2251 **obj = wxColour(spec);
2252 return TRUE;
2253 }
2254 }
2255 // last chance: 3-tuple of integers is expected
2256 else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2257 PyObject* o1 = PySequence_GetItem(source, 0);
2258 PyObject* o2 = PySequence_GetItem(source, 1);
2259 PyObject* o3 = PySequence_GetItem(source, 2);
2260 if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2261 Py_DECREF(o1);
2262 Py_DECREF(o2);
2263 Py_DECREF(o3);
2264 goto error;
2265 }
2266 **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2267 Py_DECREF(o1);
2268 Py_DECREF(o2);
2269 Py_DECREF(o3);
2270 return TRUE;
2271 }
2272
2273 error:
2274 PyErr_SetString(PyExc_TypeError,
2275 "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2276 return FALSE;
2277 }
2278
2279
2280
2281 bool wxPoint2DDouble_helper(PyObject* source, wxPoint2DDouble** obj) {
2282 // If source is an object instance then it may already be the right type
2283 if (PyInstance_Check(source)) {
2284 wxPoint2DDouble* ptr;
2285 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint2DDouble_p"))
2286 goto error;
2287 *obj = ptr;
2288 return TRUE;
2289 }
2290 // otherwise a length-2 sequence of floats is expected
2291 if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2292 PyObject* o1 = PySequence_GetItem(source, 0);
2293 PyObject* o2 = PySequence_GetItem(source, 1);
2294 // This should really check for integers, not numbers -- but that would break code.
2295 if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2296 Py_DECREF(o1);
2297 Py_DECREF(o2);
2298 goto error;
2299 }
2300 **obj = wxPoint2DDouble(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2301 Py_DECREF(o1);
2302 Py_DECREF(o2);
2303 return TRUE;
2304 }
2305 error:
2306 PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2DDouble object.");
2307 return FALSE;
2308 }
2309
2310
2311
2312 //----------------------------------------------------------------------
2313
2314 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2315
2316 PyObject* list = PyList_New(0);
2317 for (size_t i=0; i < arr.GetCount(); i++) {
2318 #if wxUSE_UNICODE
2319 PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2320 #else
2321 PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2322 #endif
2323 PyList_Append(list, str);
2324 Py_DECREF(str);
2325 }
2326 return list;
2327 }
2328
2329
2330 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2331
2332 PyObject* list = PyList_New(0);
2333 for (size_t i=0; i < arr.GetCount(); i++) {
2334 PyObject* number = PyInt_FromLong(arr[i]);
2335 PyList_Append(list, number);
2336 Py_DECREF(number);
2337 }
2338 return list;
2339 }
2340
2341
2342 //----------------------------------------------------------------------
2343 //----------------------------------------------------------------------
2344
2345
2346
2347
wxWidgets (Impactor)