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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__
40int WXDLLEXPORT wxEntryStart( int& argc, char** argv );
41#else
42int WXDLLEXPORT wxEntryStart( int argc, char** argv );
43#endif
44int WXDLLEXPORT wxEntryInitGui();
45void WXDLLEXPORT wxEntryCleanup();
46
47wxPyApp* wxPythonApp = NULL; // Global instance of application object
48bool wxPyDoCleanup = FALSE;
49
50
51#ifdef WXP_WITH_THREAD
52struct wxPyThreadState {
53 unsigned long tid;
54 PyThreadState* tstate;
55
56 wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
57 : tid(_tid), tstate(_tstate) {}
58};
59
60#include <wx/dynarray.h>
61WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
62#include <wx/arrimpl.cpp>
63WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
64
65wxPyThreadStateArray* wxPyTStates = NULL;
66wxMutex* wxPyTMutex = NULL;
67#endif
68
69
70#ifdef __WXMSW__ // If building for win32...
71//----------------------------------------------------------------------
72// This gets run when the DLL is loaded. We just need to save a handle.
73//----------------------------------------------------------------------
74
75BOOL WINAPI DllMain(
76 HINSTANCE hinstDLL, // handle to DLL module
77 DWORD fdwReason, // reason for calling function
78 LPVOID lpvReserved // reserved
79 )
80{
81 // If wxPython is embedded in another wxWindows app then
82 // the inatance has already been set.
83 if (! wxGetInstance())
84 wxSetInstance(hinstDLL);
85 return TRUE;
86}
87#endif
88
89//----------------------------------------------------------------------
90// Classes for implementing the wxp main application shell.
91//----------------------------------------------------------------------
92
93
94wxPyApp::wxPyApp() {
95 SetUseBestVisual(TRUE);
96}
97
98wxPyApp::~wxPyApp() {
99}
100
101
102// This one isn't acutally called... See __wxStart()
103bool wxPyApp::OnInit() {
104 return FALSE;
105}
106
107
108int wxPyApp::MainLoop() {
109 int retval = 0;
110
111 DeletePendingObjects();
112 bool initialized = wxTopLevelWindows.GetCount() != 0;
113#ifdef __WXGTK__
114 m_initialized = initialized;
115#endif
116
117 if (initialized) {
118 if ( m_exitOnFrameDelete == Later ) {
119 m_exitOnFrameDelete = Yes;
120 }
121
122 retval = wxApp::MainLoop();
123 OnExit();
124 }
125 return retval;
126}
127
128
129
130//---------------------------------------------------------------------
131//----------------------------------------------------------------------
132
133
134static char* wxPyCopyCString(const wxChar* src)
135{
136 wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
137 size_t len = strlen(buff);
138 char* dest = new char[len+1];
139 strcpy(dest, buff);
140 return dest;
141}
142
143#if wxUSE_UNICODE
144static char* wxPyCopyCString(const char* src) // we need a char version too
145{
146 size_t len = strlen(src);
147 char* dest = new char[len+1];
148 strcpy(dest, src);
149 return dest;
150}
151#endif
152
153static wxChar* wxPyCopyWString(const char *src)
154{
155 //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
156 wxString str(src, *wxConvCurrent);
157 return copystring(str);
158}
159
160#if wxUSE_UNICODE
161static wxChar* wxPyCopyWString(const wxChar *src)
162{
163 return copystring(src);
164}
165#endif
166
167
168//----------------------------------------------------------------------
169
170// This is where we pick up the first part of the wxEntry functionality...
171// The rest is in __wxStart and __wxCleanup. This function is called when
172// wxcmodule is imported. (Before there is a wxApp object.)
173void __wxPreStart()
174{
175
176#ifdef __WXMSW__
177// wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
178#endif
179
180#ifdef WXP_WITH_THREAD
181 PyEval_InitThreads();
182 wxPyTStates = new wxPyThreadStateArray;
183 wxPyTMutex = new wxMutex;
184#endif
185
186 wxApp::CheckBuildOptions(wxBuildOptions());
187
188 // Bail out if there is already a wxApp created. This means that the
189 // toolkit has already been initialized, as in embedding wxPython in
190 // a C++ wxWindows app, so we don't need to call wxEntryStart.
191 if (wxTheApp != NULL) {
192 return;
193 }
194 wxPyDoCleanup = TRUE;
195
196 int argc = 0;
197 char** argv = NULL;
198 PyObject* sysargv = PySys_GetObject("argv");
199 if (sysargv != NULL) {
200 argc = PyList_Size(sysargv);
201 argv = new char*[argc+1];
202 int x;
203 for(x=0; x<argc; x++) {
204 PyObject *item = PyList_GetItem(sysargv, x);
205#if wxUSE_UNICODE
206 if (PyUnicode_Check(item))
207 argv[x] = wxPyCopyCString(PyUnicode_AS_UNICODE(item));
208 else
209#endif
210 argv[x] = wxPyCopyCString(PyString_AsString(item));
211 }
212 argv[argc] = NULL;
213 }
214
215 wxEntryStart(argc, argv);
216 delete [] argv;
217}
218
219
220// Start the user application, user App's OnInit method is a parameter here
221PyObject* __wxStart(PyObject* /* self */, PyObject* args)
222{
223 PyObject* onInitFunc = NULL;
224 PyObject* arglist;
225 PyObject* result;
226 long bResult;
227
228 if (!PyArg_ParseTuple(args, "O", &onInitFunc))
229 return NULL;
230
231 // This is the next part of the wxEntry functionality...
232 int argc = 0;
233 wxChar** argv = NULL;
234 PyObject* sysargv = PySys_GetObject("argv");
235 if (sysargv != NULL) {
236 argc = PyList_Size(sysargv);
237 argv = new wxChar*[argc+1];
238 int x;
239 for(x=0; x<argc; x++) {
240 PyObject *pyArg = PyList_GetItem(sysargv, x);
241#if wxUSE_UNICODE
242 if (PyUnicode_Check(pyArg))
243 argv[x] = wxPyCopyWString(PyUnicode_AS_UNICODE(pyArg));
244 else
245#endif
246 argv[x] = wxPyCopyWString(PyString_AsString(pyArg));
247 }
248 argv[argc] = NULL;
249 }
250
251 wxPythonApp->argc = argc;
252 wxPythonApp->argv = argv;
253
254 wxEntryInitGui();
255
256 // Call the Python App's OnInit function
257 arglist = PyTuple_New(0);
258 result = PyEval_CallObject(onInitFunc, arglist);
259 if (!result) { // an exception was raised.
260 return NULL;
261 }
262
263 if (! PyInt_Check(result)) {
264 PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
265 return NULL;
266 }
267 bResult = PyInt_AS_LONG(result);
268 if (! bResult) {
269 PyErr_SetString(PyExc_SystemExit, "OnInit returned FALSE, exiting...");
270 return NULL;
271 }
272
273#ifdef __WXGTK__
274 wxTheApp->m_initialized = (wxTopLevelWindows.GetCount() > 0);
275#endif
276
277 Py_INCREF(Py_None);
278 return Py_None;
279}
280
281
282void __wxCleanup() {
283 if (wxPyDoCleanup)
284 wxEntryCleanup();
285#ifdef WXP_WITH_THREAD
286 delete wxPyTMutex;
287 wxPyTMutex = NULL;
288 wxPyTStates->Empty();
289 delete wxPyTStates;
290 wxPyTStates = NULL;
291#endif
292}
293
294
295
296static PyObject* wxPython_dict = NULL;
297static PyObject* wxPyPtrTypeMap = NULL;
298
299
300PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
301{
302
303 if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
304 return NULL;
305
306 if (!PyDict_Check(wxPython_dict)) {
307 PyErr_SetString(PyExc_TypeError, "_wxSetDictionary must have dictionary object!");
308 return NULL;
309 }
310
311 if (! wxPyPtrTypeMap)
312 wxPyPtrTypeMap = PyDict_New();
313 PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
314
315
316#ifdef __WXMOTIF__
317#define wxPlatform "__WXMOTIF__"
318#endif
319#ifdef __WXX11__
320#define wxPlatform "__WXX11__"
321#endif
322#ifdef __WXGTK__
323#define wxPlatform "__WXGTK__"
324#endif
325#if defined(__WIN32__) || defined(__WXMSW__)
326#define wxPlatform "__WXMSW__"
327#endif
328#ifdef __WXMAC__
329#define wxPlatform "__WXMAC__"
330#endif
331
332#ifdef __WXDEBUG__
333 int wxdebug = 1;
334#else
335 int wxdebug = 0;
336#endif
337
338 PyDict_SetItemString(wxPython_dict, "wxPlatform", PyString_FromString(wxPlatform));
339 PyDict_SetItemString(wxPython_dict, "wxUSE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
340 PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
341
342 Py_INCREF(Py_None);
343 return Py_None;
344}
345
346//---------------------------------------------------------------------------
347
348void wxPyClientData_dtor(wxPyClientData* self) {
349 wxPyBeginBlockThreads();
350 Py_DECREF(self->m_obj);
351 wxPyEndBlockThreads();
352}
353
354void wxPyUserData_dtor(wxPyUserData* self) {
355 wxPyBeginBlockThreads();
356 Py_DECREF(self->m_obj);
357 wxPyEndBlockThreads();
358}
359
360
361// This is called when an OOR controled object is being destroyed. Although
362// the C++ object is going away there is no way to force the Python object
363// (and all references to it) to die too. This causes problems (crashes) in
364// wxPython when a python shadow object attempts to call a C++ method using
365// the now bogus pointer... So to try and prevent this we'll do a little black
366// magic and change the class of the python instance to a class that will
367// raise an exception for any attempt to call methods with it. See
368// _wxPyDeadObject in _extras.py for the implementation of this class.
369void wxPyOORClientData_dtor(wxPyOORClientData* self) {
370
371 static PyObject* deadObjectClass = NULL;
372
373 wxPyBeginBlockThreads();
374 if (deadObjectClass == NULL) {
375 deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
376 wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
377 Py_INCREF(deadObjectClass);
378 }
379
380 // Clear the instance's dictionary, put the name of the old class into the
381 // instance, and then reset the class to be the dead class.
382 if (self->m_obj->ob_refcnt > 1) { // but only if there is more than one reference
383 wxASSERT_MSG(PyInstance_Check(self->m_obj), wxT("m_obj not an instance!?!?!"));
384 PyInstanceObject* inst = (PyInstanceObject*)self->m_obj;
385 PyDict_Clear(inst->in_dict);
386 PyDict_SetItemString(inst->in_dict, "_name", inst->in_class->cl_name);
387 inst->in_class = (PyClassObject*)deadObjectClass;
388 Py_INCREF(deadObjectClass);
389 }
390 wxPyEndBlockThreads();
391}
392
393//---------------------------------------------------------------------------
394// Stuff used by OOR to find the right wxPython class type to return and to
395// build it.
396
397
398// The pointer type map is used when the "pointer" type name generated by SWIG
399// is not the same as the shadow class name, for example wxPyTreeCtrl
400// vs. wxTreeCtrl. It needs to be referenced in Python as well as from C++,
401// so we'll just make it a Python dictionary in the wx module's namespace.
402// (See __wxSetDictionary)
403void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
404 if (! wxPyPtrTypeMap)
405 wxPyPtrTypeMap = PyDict_New();
406 PyDict_SetItemString(wxPyPtrTypeMap,
407 (char*)commonName,
408 PyString_FromString((char*)ptrName));
409}
410
411
412
413PyObject* wxPyClassExists(const wxString& className) {
414
415 if (!className)
416 return NULL;
417
418 char buff[64]; // should always be big enough...
419
420 sprintf(buff, "%sPtr", className.mbc_str());
421 PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
422
423 return classobj; // returns NULL if not found
424}
425
426
427PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
428 PyObject* target = NULL;
429 bool isEvtHandler = FALSE;
430
431 if (source) {
432 // If it's derived from wxEvtHandler then there may
433 // already be a pointer to a Python object that we can use
434 // in the OOR data.
435 if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
436 isEvtHandler = TRUE;
437 wxEvtHandler* eh = (wxEvtHandler*)source;
438 wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
439 if (data) {
440 target = data->m_obj;
441 Py_INCREF(target);
442 }
443 }
444
445 if (! target) {
446 // Otherwise make it the old fashioned way by making a
447 // new shadow object and putting this pointer in it.
448 wxClassInfo* info = source->GetClassInfo();
449 wxChar* name = (wxChar*)info->GetClassName();
450 PyObject* klass = wxPyClassExists(name);
451 while (info && !klass) {
452 name = (wxChar*)info->GetBaseClassName1();
453 info = wxClassInfo::FindClass(name);
454 klass = wxPyClassExists(name);
455 }
456 if (info) {
457 target = wxPyConstructObject(source, name, klass, FALSE);
458 if (target && isEvtHandler)
459 ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
460 } else {
461 wxString msg(wxT("wxPython class not found for "));
462 msg += source->GetClassInfo()->GetClassName();
463 PyErr_SetString(PyExc_NameError, msg.mbc_str());
464 target = NULL;
465 }
466 }
467 } else { // source was NULL so return None.
468 Py_INCREF(Py_None); target = Py_None;
469 }
470 return target;
471}
472
473
474PyObject* wxPyMake_wxSizer(wxSizer* source) {
475 PyObject* target = NULL;
476
477 if (source && wxIsKindOf(source, wxSizer)) {
478 // If it's derived from wxSizer then there may
479 // already be a pointer to a Python object that we can use
480 // in the OOR data.
481 wxSizer* sz = (wxSizer*)source;
482 wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
483 if (data) {
484 target = data->m_obj;
485 Py_INCREF(target);
486 }
487 }
488 if (! target) {
489 target = wxPyMake_wxObject(source, FALSE);
490 if (target != Py_None)
491 ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
492 }
493 return target;
494}
495
496
497
498//---------------------------------------------------------------------------
499
500PyObject* wxPyConstructObject(void* ptr,
501 const wxString& className,
502 PyObject* klass,
503 int setThisOwn) {
504
505 PyObject* obj;
506 PyObject* arg;
507 PyObject* item;
508 wxString name(className);
509 char swigptr[64]; // should always be big enough...
510 char buff[64];
511
512 if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
513 name = wxString(PyString_AsString(item), *wxConvCurrent);
514 }
515 sprintf(buff, "_%s_p", (const char*)name.mbc_str());
516 SWIG_MakePtr(swigptr, ptr, buff);
517
518 arg = Py_BuildValue("(s)", swigptr);
519 obj = PyInstance_New(klass, arg, NULL);
520 Py_DECREF(arg);
521
522 if (setThisOwn) {
523 PyObject* one = PyInt_FromLong(1);
524 PyObject_SetAttrString(obj, "thisown", one);
525 Py_DECREF(one);
526 }
527
528 return obj;
529}
530
531
532PyObject* wxPyConstructObject(void* ptr,
533 const wxString& className,
534 int setThisOwn) {
535 if (!ptr) {
536 Py_INCREF(Py_None);
537 return Py_None;
538 }
539
540 char buff[64]; // should always be big enough...
541 sprintf(buff, "%sPtr", (const char*)className.mbc_str());
542
543 wxASSERT_MSG(wxPython_dict, wxT("wxPython_dict is not set yet!!"));
544
545 PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
546 if (! classobj) {
547 wxString msg(wxT("wxPython class not found for "));
548 msg += className;
549 PyErr_SetString(PyExc_NameError, msg.mbc_str());
550 return NULL;
551 }
552
553 return wxPyConstructObject(ptr, className, classobj, setThisOwn);
554}
555
556
557//---------------------------------------------------------------------------
558
559
560#ifdef WXP_WITH_THREAD
561inline
562unsigned long wxPyGetCurrentThreadId() {
563 return wxThread::GetCurrentId();
564}
565
566static PyThreadState* gs_shutdownTState;
567static
568PyThreadState* wxPyGetThreadState() {
569 if (wxPyTMutex == NULL) // Python is shutting down...
570 return gs_shutdownTState;
571
572 unsigned long ctid = wxPyGetCurrentThreadId();
573 PyThreadState* tstate = NULL;
574
575 wxPyTMutex->Lock();
576 for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
577 wxPyThreadState& info = wxPyTStates->Item(i);
578 if (info.tid == ctid) {
579 tstate = info.tstate;
580 break;
581 }
582 }
583 wxPyTMutex->Unlock();
584 wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
585 return tstate;
586}
587
588static
589void wxPySaveThreadState(PyThreadState* tstate) {
590 if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
591 gs_shutdownTState = tstate;
592 return;
593 }
594 unsigned long ctid = wxPyGetCurrentThreadId();
595 wxPyTMutex->Lock();
596 for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
597 wxPyThreadState& info = wxPyTStates->Item(i);
598 if (info.tid == ctid) {
599#if 0
600 if (info.tstate != tstate)
601 wxLogMessage("*** tstate mismatch!???");
602#endif
603 // info.tstate = tstate; *** DO NOT update existing ones???
604 // Normally it will never change, but apparently COM callbacks
605 // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
606 // tstate which will then be garbage the next time we try to use
607 // it...
608 wxPyTMutex->Unlock();
609 return;
610 }
611 }
612 // not found, so add it...
613 wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
614 wxPyTMutex->Unlock();
615}
616
617#endif
618
619
620// Calls from Python to wxWindows code are wrapped in calls to these
621// functions:
622
623PyThreadState* wxPyBeginAllowThreads() {
624#ifdef WXP_WITH_THREAD
625 PyThreadState* saved = PyEval_SaveThread(); // Py_BEGIN_ALLOW_THREADS;
626 wxPySaveThreadState(saved);
627 return saved;
628#else
629 return NULL;
630#endif
631}
632
633void wxPyEndAllowThreads(PyThreadState* saved) {
634#ifdef WXP_WITH_THREAD
635 PyEval_RestoreThread(saved); // Py_END_ALLOW_THREADS;
636#endif
637}
638
639
640
641// Calls from wxWindows back to Python code, or even any PyObject
642// manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
643
644void wxPyBeginBlockThreads() {
645#ifdef WXP_WITH_THREAD
646 PyThreadState* tstate = wxPyGetThreadState();
647 PyEval_RestoreThread(tstate);
648#endif
649}
650
651
652void wxPyEndBlockThreads() {
653#ifdef WXP_WITH_THREAD
654 // Is there any need to save it again?
655 // PyThreadState* tstate =
656 PyEval_SaveThread();
657#endif
658}
659
660
661//---------------------------------------------------------------------------
662// wxPyInputStream and wxPyCBInputStream methods
663
664
665void wxPyInputStream::close() {
666 /* do nothing for now */
667}
668
669void wxPyInputStream::flush() {
670 /* do nothing for now */
671}
672
673bool wxPyInputStream::eof() {
674 if (m_wxis)
675 return m_wxis->Eof();
676 else
677 return TRUE;
678}
679
680wxPyInputStream::~wxPyInputStream() {
681 /* do nothing */
682}
683
684
685
686
687PyObject* wxPyInputStream::read(int size) {
688 PyObject* obj = NULL;
689 wxMemoryBuffer buf;
690 const int BUFSIZE = 1024;
691
692 // check if we have a real wxInputStream to work with
693 if (!m_wxis) {
694 PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
695 return NULL;
696 }
697
698 if (size < 0) {
699 // read until EOF
700 while (! m_wxis->Eof()) {
701 m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
702 buf.UngetAppendBuf(m_wxis->LastRead());
703 }
704
705 } else { // Read only size number of characters
706 m_wxis->Read(buf.GetWriteBuf(size), size);
707 buf.UngetWriteBuf(m_wxis->LastRead());
708 }
709
710 // error check
711 if (m_wxis->LastError() == wxSTREAM_READ_ERROR) {
712 PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
713 }
714 else {
715 // We use only strings for the streams, not unicode
716 obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
717 }
718 return obj;
719}
720
721
722PyObject* wxPyInputStream::readline(int size) {
723 PyObject* obj = NULL;
724 wxMemoryBuffer buf;
725 int i;
726 char ch;
727
728 // check if we have a real wxInputStream to work with
729 if (!m_wxis) {
730 PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
731 return NULL;
732 }
733
734 // read until \n or byte limit reached
735 for (i=ch=0; (ch != '\n') && (!m_wxis->Eof()) && ((size < 0) || (i < size)); i++) {
736 ch = m_wxis->GetC();
737 buf.AppendByte(ch);
738 }
739
740 // errorcheck
741 if (m_wxis->LastError() == wxSTREAM_READ_ERROR) {
742 PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
743 }
744 else {
745 // We use only strings for the streams, not unicode
746 obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
747 }
748 return obj;
749}
750
751
752PyObject* wxPyInputStream::readlines(int sizehint) {
753 PyObject* pylist;
754
755 // check if we have a real wxInputStream to work with
756 if (!m_wxis) {
757 PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
758 return NULL;
759 }
760
761 // init list
762 pylist = PyList_New(0);
763 if (!pylist) {
764 PyErr_NoMemory();
765 return NULL;
766 }
767
768 // read sizehint bytes or until EOF
769 int i;
770 for (i=0; (!m_wxis->Eof()) && ((sizehint < 0) || (i < sizehint));) {
771 PyObject* s = this->readline();
772 if (s == NULL) {
773 Py_DECREF(pylist);
774 return NULL;
775 }
776 PyList_Append(pylist, s);
777 i += PyString_Size(s);
778 }
779
780 // error check
781 if (m_wxis->LastError() == wxSTREAM_READ_ERROR) {
782 Py_DECREF(pylist);
783 PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
784 return NULL;
785 }
786
787 return pylist;
788}
789
790
791void wxPyInputStream::seek(int offset, int whence) {
792 if (m_wxis)
793 m_wxis->SeekI(offset, wxSeekMode(whence));
794}
795
796int wxPyInputStream::tell(){
797 if (m_wxis)
798 return m_wxis->TellI();
799 else return 0;
800}
801
802
803
804
805wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
806 : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
807{}
808
809
810wxPyCBInputStream::~wxPyCBInputStream() {
811 if (m_block) wxPyBeginBlockThreads();
812 Py_XDECREF(m_read);
813 Py_XDECREF(m_seek);
814 Py_XDECREF(m_tell);
815 if (m_block) wxPyEndBlockThreads();
816}
817
818
819wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
820 if (block) wxPyBeginBlockThreads();
821
822 PyObject* read = getMethod(py, "read");
823 PyObject* seek = getMethod(py, "seek");
824 PyObject* tell = getMethod(py, "tell");
825
826 if (!read) {
827 PyErr_SetString(PyExc_TypeError, "Not a file-like object");
828 Py_XDECREF(read);
829 Py_XDECREF(seek);
830 Py_XDECREF(tell);
831 if (block) wxPyEndBlockThreads();
832 return NULL;
833 }
834
835 if (block) wxPyEndBlockThreads();
836 return new wxPyCBInputStream(read, seek, tell, block);
837}
838
839
840wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
841 return wxPyCBInputStream::create(py, block);
842}
843
844PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
845 if (!PyObject_HasAttrString(py, name))
846 return NULL;
847 PyObject* o = PyObject_GetAttrString(py, name);
848 if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
849 Py_DECREF(o);
850 return NULL;
851 }
852 return o;
853}
854
855
856size_t wxPyCBInputStream::GetSize() const {
857 wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
858 if (m_seek && m_tell) {
859 off_t temp = self->OnSysTell();
860 off_t ret = self->OnSysSeek(0, wxFromEnd);
861 self->OnSysSeek(temp, wxFromStart);
862 return ret;
863 }
864 else
865 return 0;
866}
867
868
869size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
870 if (bufsize == 0)
871 return 0;
872
873 wxPyBeginBlockThreads();
874 PyObject* arglist = Py_BuildValue("(i)", bufsize);
875 PyObject* result = PyEval_CallObject(m_read, arglist);
876 Py_DECREF(arglist);
877
878 size_t o = 0;
879 if ((result != NULL) && PyString_Check(result)) {
880 o = PyString_Size(result);
881 if (o == 0)
882 m_lasterror = wxSTREAM_EOF;
883 if (o > bufsize)
884 o = bufsize;
885 memcpy((char*)buffer, PyString_AsString(result), o); // strings only, not unicode...
886 Py_DECREF(result);
887
888 }
889 else
890 m_lasterror = wxSTREAM_READ_ERROR;
891 wxPyEndBlockThreads();
892 m_lastcount = o;
893 return o;
894}
895
896size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
897 m_lasterror = wxSTREAM_WRITE_ERROR;
898 return 0;
899}
900
901off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
902 wxPyBeginBlockThreads();
903 PyObject* arglist = Py_BuildValue("(ii)", off, mode);
904 PyObject* result = PyEval_CallObject(m_seek, arglist);
905 Py_DECREF(arglist);
906 Py_XDECREF(result);
907 wxPyEndBlockThreads();
908 return OnSysTell();
909}
910
911off_t wxPyCBInputStream::OnSysTell() const {
912 wxPyBeginBlockThreads();
913 PyObject* arglist = Py_BuildValue("()");
914 PyObject* result = PyEval_CallObject(m_tell, arglist);
915 Py_DECREF(arglist);
916 off_t o = 0;
917 if (result != NULL) {
918 o = PyInt_AsLong(result);
919 Py_DECREF(result);
920 };
921 wxPyEndBlockThreads();
922 return o;
923}
924
925//----------------------------------------------------------------------
926
927IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
928
929wxPyCallback::wxPyCallback(PyObject* func) {
930 m_func = func;
931 Py_INCREF(m_func);
932}
933
934wxPyCallback::wxPyCallback(const wxPyCallback& other) {
935 m_func = other.m_func;
936 Py_INCREF(m_func);
937}
938
939wxPyCallback::~wxPyCallback() {
940 wxPyBeginBlockThreads();
941 Py_DECREF(m_func);
942 wxPyEndBlockThreads();
943}
944
945
946
947// This function is used for all events destined for Python event handlers.
948void wxPyCallback::EventThunker(wxEvent& event) {
949 wxPyCallback* cb = (wxPyCallback*)event.m_callbackUserData;
950 PyObject* func = cb->m_func;
951 PyObject* result;
952 PyObject* arg;
953 PyObject* tuple;
954
955
956 wxPyBeginBlockThreads();
957 wxString className = event.GetClassInfo()->GetClassName();
958
959 if (className == "wxPyEvent")
960 arg = ((wxPyEvent*)&event)->GetSelf();
961 else if (className == "wxPyCommandEvent")
962 arg = ((wxPyCommandEvent*)&event)->GetSelf();
963 else {
964 arg = wxPyConstructObject((void*)&event, className);
965 }
966
967 tuple = PyTuple_New(1);
968 PyTuple_SET_ITEM(tuple, 0, arg);
969 result = PyEval_CallObject(func, tuple);
970 Py_DECREF(tuple);
971 if (result) {
972 Py_DECREF(result);
973 PyErr_Clear(); // Just in case...
974 } else {
975 PyErr_Print();
976 }
977 wxPyEndBlockThreads();
978}
979
980
981//----------------------------------------------------------------------
982
983wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
984 m_lastFound = NULL;
985 m_self = other.m_self;
986 m_class = other.m_class;
987 if (m_self) {
988 Py_INCREF(m_self);
989 Py_INCREF(m_class);
990 }
991}
992
993
994void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
995 m_self = self;
996 m_class = klass;
997 m_incRef = incref;
998 if (incref) {
999 Py_INCREF(m_self);
1000 Py_INCREF(m_class);
1001 }
1002}
1003
1004
1005#if PYTHON_API_VERSION >= 1011
1006
1007// Prior to Python 2.2 PyMethod_GetClass returned the class object
1008// in which the method was defined. Starting with 2.2 it returns
1009// "class that asked for the method" which seems totally bogus to me
1010// but apprently it fixes some obscure problem waiting to happen in
1011// Python. Since the API was not documented Guido and the gang felt
1012// safe in changing it. Needless to say that totally screwed up the
1013// logic below in wxPyCallbackHelper::findCallback, hence this icky
1014// code to find the class where the method is actually defined...
1015
1016static
1017PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1018{
1019 int i, n;
1020
1021 if (PyType_Check(klass)) { // new style classes
1022 // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1023 // (TODO: This part is not tested yet, so I'm not sure it is correct...)
1024 PyTypeObject* type = (PyTypeObject*)klass;
1025 PyObject *mro, *res, *base, *dict;
1026 /* Look in tp_dict of types in MRO */
1027 mro = type->tp_mro;
1028 assert(PyTuple_Check(mro));
1029 n = PyTuple_GET_SIZE(mro);
1030 for (i = 0; i < n; i++) {
1031 base = PyTuple_GET_ITEM(mro, i);
1032 if (PyClass_Check(base))
1033 dict = ((PyClassObject *)base)->cl_dict;
1034 else {
1035 assert(PyType_Check(base));
1036 dict = ((PyTypeObject *)base)->tp_dict;
1037 }
1038 assert(dict && PyDict_Check(dict));
1039 res = PyDict_GetItem(dict, name);
1040 if (res != NULL)
1041 return base;
1042 }
1043 return NULL;
1044 }
1045
1046 else if (PyClass_Check(klass)) { // old style classes
1047 // This code is borrowed/adapted from class_lookup in classobject.c
1048 PyClassObject* cp = (PyClassObject*)klass;
1049 PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1050 if (value != NULL) {
1051 return (PyObject*)cp;
1052 }
1053 n = PyTuple_Size(cp->cl_bases);
1054 for (i = 0; i < n; i++) {
1055 PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1056 PyObject *v = PyFindClassWithAttr(base, name);
1057 if (v != NULL)
1058 return v;
1059 }
1060 return NULL;
1061 }
1062 return NULL;
1063}
1064#endif
1065
1066
1067static
1068PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1069{
1070 PyObject* mgc = PyMethod_GET_CLASS(method);
1071
1072#if PYTHON_API_VERSION <= 1010 // prior to Python 2.2, the easy way
1073 return mgc;
1074#else // 2.2 and after, the hard way...
1075
1076 PyObject* nameo = PyString_FromString(name);
1077 PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1078 Py_DECREF(nameo);
1079 return klass;
1080#endif
1081}
1082
1083
1084
1085bool wxPyCallbackHelper::findCallback(const char* name) const {
1086 wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1087 self->m_lastFound = NULL;
1088
1089 // If the object (m_self) has an attibute of the given name...
1090 if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1091 PyObject *method, *klass;
1092 method = PyObject_GetAttrString(m_self, (char*)name);
1093
1094 // ...and if that attribute is a method, and if that method's class is
1095 // not from a base class...
1096 if (PyMethod_Check(method) &&
1097 (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1098 ((klass == m_class) || PyClass_IsSubclass(klass, m_class))) {
1099
1100 // ...then we'll save a pointer to the method so callCallback can call it.
1101 self->m_lastFound = method;
1102 }
1103 else {
1104 Py_DECREF(method);
1105 }
1106 }
1107 return m_lastFound != NULL;
1108}
1109
1110
1111int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1112 PyObject* result;
1113 int retval = FALSE;
1114
1115 result = callCallbackObj(argTuple);
1116 if (result) { // Assumes an integer return type...
1117 retval = PyInt_AsLong(result);
1118 Py_DECREF(result);
1119 PyErr_Clear(); // forget about it if it's not...
1120 }
1121 return retval;
1122}
1123
1124// Invoke the Python callable object, returning the raw PyObject return
1125// value. Caller should DECREF the return value and also call PyEval_SaveThread.
1126PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1127 PyObject* result;
1128
1129 // Save a copy of the pointer in case the callback generates another
1130 // callback. In that case m_lastFound will have a different value when
1131 // it gets back here...
1132 PyObject* method = m_lastFound;
1133
1134 result = PyEval_CallObject(method, argTuple);
1135 Py_DECREF(argTuple);
1136 Py_DECREF(method);
1137 if (!result) {
1138 PyErr_Print();
1139 }
1140 return result;
1141}
1142
1143
1144void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1145 cbh.setSelf(self, klass, incref);
1146}
1147
1148bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1149 return cbh.findCallback(name);
1150}
1151
1152int wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1153 return cbh.callCallback(argTuple);
1154}
1155
1156PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1157 return cbh.callCallbackObj(argTuple);
1158}
1159
1160
1161void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1162 if (cbh->m_incRef) {
1163 wxPyBeginBlockThreads();
1164 Py_XDECREF(cbh->m_self);
1165 Py_XDECREF(cbh->m_class);
1166 wxPyEndBlockThreads();
1167 }
1168}
1169
1170//---------------------------------------------------------------------------
1171//---------------------------------------------------------------------------
1172// These event classes can be derived from in Python and passed through the event
1173// system without losing anything. They do this by keeping a reference to
1174// themselves and some special case handling in wxPyCallback::EventThunker.
1175
1176
1177wxPyEvtSelfRef::wxPyEvtSelfRef() {
1178 //m_self = Py_None; // **** We don't do normal ref counting to prevent
1179 //Py_INCREF(m_self); // circular loops...
1180 m_cloned = FALSE;
1181}
1182
1183wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1184 wxPyBeginBlockThreads();
1185 if (m_cloned)
1186 Py_DECREF(m_self);
1187 wxPyEndBlockThreads();
1188}
1189
1190void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1191 wxPyBeginBlockThreads();
1192 if (m_cloned)
1193 Py_DECREF(m_self);
1194 m_self = self;
1195 if (clone) {
1196 Py_INCREF(m_self);
1197 m_cloned = TRUE;
1198 }
1199 wxPyEndBlockThreads();
1200}
1201
1202PyObject* wxPyEvtSelfRef::GetSelf() const {
1203 Py_INCREF(m_self);
1204 return m_self;
1205}
1206
1207
1208IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1209IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1210
1211
1212wxPyEvent::wxPyEvent(int id)
1213 : wxEvent(id) {
1214}
1215
1216
1217wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1218 : wxEvent(evt)
1219{
1220 SetSelf(evt.m_self, TRUE);
1221}
1222
1223
1224wxPyEvent::~wxPyEvent() {
1225}
1226
1227
1228wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1229 : wxCommandEvent(commandType, id) {
1230}
1231
1232
1233wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1234 : wxCommandEvent(evt)
1235{
1236 SetSelf(evt.m_self, TRUE);
1237}
1238
1239
1240wxPyCommandEvent::~wxPyCommandEvent() {
1241}
1242
1243
1244
1245
1246//---------------------------------------------------------------------------
1247//---------------------------------------------------------------------------
1248
1249
1250wxPyTimer::wxPyTimer(PyObject* callback) {
1251 func = callback;
1252 Py_INCREF(func);
1253}
1254
1255wxPyTimer::~wxPyTimer() {
1256 wxPyBeginBlockThreads();
1257 Py_DECREF(func);
1258 wxPyEndBlockThreads();
1259}
1260
1261void wxPyTimer::Notify() {
1262 if (!func || func == Py_None) {
1263 wxTimer::Notify();
1264 }
1265 else {
1266 wxPyBeginBlockThreads();
1267
1268 PyObject* result;
1269 PyObject* args = Py_BuildValue("()");
1270
1271 result = PyEval_CallObject(func, args);
1272 Py_DECREF(args);
1273 if (result) {
1274 Py_DECREF(result);
1275 PyErr_Clear();
1276 } else {
1277 PyErr_Print();
1278 }
1279
1280 wxPyEndBlockThreads();
1281 }
1282}
1283
1284
1285
1286//---------------------------------------------------------------------------
1287//---------------------------------------------------------------------------
1288// Convert a wxList to a Python List
1289
1290PyObject* wxPy_ConvertList(wxListBase* list, const char* className) {
1291 PyObject* pyList;
1292 PyObject* pyObj;
1293 wxObject* wxObj;
1294 wxNode* node = list->First();
1295
1296 wxPyBeginBlockThreads();
1297 pyList = PyList_New(0);
1298 while (node) {
1299 wxObj = node->Data();
1300 pyObj = wxPyMake_wxObject(wxObj); //wxPyConstructObject(wxObj, className);
1301 PyList_Append(pyList, pyObj);
1302 node = node->Next();
1303 }
1304 wxPyEndBlockThreads();
1305 return pyList;
1306}
1307
1308//----------------------------------------------------------------------
1309
1310long wxPyGetWinHandle(wxWindow* win) {
1311#ifdef __WXMSW__
1312 return (long)win->GetHandle();
1313#endif
1314
1315 // Find and return the actual X-Window.
1316#ifdef __WXGTK__
1317 if (win->m_wxwindow) {
1318 GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1319 if (bwin) {
1320 return (long)bwin->xwindow;
1321 }
1322 }
1323#endif
1324 return 0;
1325}
1326
1327//----------------------------------------------------------------------
1328// Some helper functions for typemaps in my_typemaps.i, so they won't be
1329// included in every file over and over again...
1330
1331#if PYTHON_API_VERSION >= 1009
1332 static char* wxStringErrorMsg = "String or Unicode type required";
1333#else
1334 static char* wxStringErrorMsg = "String type required";
1335#endif
1336
1337
1338wxString* wxString_in_helper(PyObject* source) {
1339 wxString* target;
1340#if PYTHON_API_VERSION >= 1009 // Have Python unicode API
1341 if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1342 PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1343 return NULL;
1344 }
1345#if wxUSE_UNICODE
1346 if (PyUnicode_Check(source)) {
1347 target = new wxString(PyUnicode_AS_UNICODE(source));
1348 } else {
1349 // It is a string, get pointers to it and transform to unicode
1350 char* tmpPtr; int tmpSize;
1351 PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1352 target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1353 }
1354#else
1355 char* tmpPtr; int tmpSize;
1356 if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1357 PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1358 return NULL;
1359 }
1360 target = new wxString(tmpPtr, tmpSize);
1361#endif // wxUSE_UNICODE
1362
1363#else // No Python unicode API (1.5.2)
1364 if (!PyString_Check(source)) {
1365 PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1366 return NULL;
1367 }
1368 target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1369#endif
1370 return target;
1371}
1372
1373
1374// Similar to above except doesn't use "new" and doesn't set an exception
1375wxString Py2wxString(PyObject* source)
1376{
1377 wxString target;
1378 bool doDecRef = FALSE;
1379
1380#if PYTHON_API_VERSION >= 1009 // Have Python unicode API
1381 if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1382 // Convert to String if not one already... (TODO: Unicode too?)
1383 source = PyObject_Str(source);
1384 doDecRef = TRUE;
1385 }
1386
1387#if wxUSE_UNICODE
1388 if (PyUnicode_Check(source)) {
1389 target = PyUnicode_AS_UNICODE(source);
1390 } else {
1391 // It is a string, get pointers to it and transform to unicode
1392 char* tmpPtr; int tmpSize;
1393 PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1394 target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1395 }
1396#else
1397 char* tmpPtr; int tmpSize;
1398 PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1399 target = wxString(tmpPtr, tmpSize);
1400#endif // wxUSE_UNICODE
1401
1402#else // No Python unicode API (1.5.2)
1403 if (!PyString_Check(source)) {
1404 // Convert to String if not one already...
1405 source = PyObject_Str(source);
1406 doDecRef = TRUE;
1407 }
1408 target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1409#endif
1410
1411 if (doDecRef)
1412 Py_DECREF(source);
1413 return target;
1414}
1415
1416
1417// Make either a Python String or Unicode object, depending on build mode
1418PyObject* wx2PyString(const wxString& src)
1419{
1420 PyObject* str;
1421#if wxUSE_UNICODE
1422 str = PyUnicode_FromUnicode(src.c_str(), src.Len());
1423#else
1424 str = PyString_FromStringAndSize(src.c_str(), src.Len());
1425#endif
1426 return str;
1427}
1428
1429
1430//----------------------------------------------------------------------
1431
1432
1433byte* byte_LIST_helper(PyObject* source) {
1434 if (!PyList_Check(source)) {
1435 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1436 return NULL;
1437 }
1438 int count = PyList_Size(source);
1439 byte* temp = new byte[count];
1440 if (! temp) {
1441 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1442 return NULL;
1443 }
1444 for (int x=0; x<count; x++) {
1445 PyObject* o = PyList_GetItem(source, x);
1446 if (! PyInt_Check(o)) {
1447 PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1448 return NULL;
1449 }
1450 temp[x] = (byte)PyInt_AsLong(o);
1451 }
1452 return temp;
1453}
1454
1455
1456int* int_LIST_helper(PyObject* source) {
1457 if (!PyList_Check(source)) {
1458 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1459 return NULL;
1460 }
1461 int count = PyList_Size(source);
1462 int* temp = new int[count];
1463 if (! temp) {
1464 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1465 return NULL;
1466 }
1467 for (int x=0; x<count; x++) {
1468 PyObject* o = PyList_GetItem(source, x);
1469 if (! PyInt_Check(o)) {
1470 PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1471 return NULL;
1472 }
1473 temp[x] = PyInt_AsLong(o);
1474 }
1475 return temp;
1476}
1477
1478
1479long* long_LIST_helper(PyObject* source) {
1480 if (!PyList_Check(source)) {
1481 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1482 return NULL;
1483 }
1484 int count = PyList_Size(source);
1485 long* temp = new long[count];
1486 if (! temp) {
1487 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1488 return NULL;
1489 }
1490 for (int x=0; x<count; x++) {
1491 PyObject* o = PyList_GetItem(source, x);
1492 if (! PyInt_Check(o)) {
1493 PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1494 return NULL;
1495 }
1496 temp[x] = PyInt_AsLong(o);
1497 }
1498 return temp;
1499}
1500
1501
1502char** string_LIST_helper(PyObject* source) {
1503 if (!PyList_Check(source)) {
1504 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1505 return NULL;
1506 }
1507 int count = PyList_Size(source);
1508 char** temp = new char*[count];
1509 if (! temp) {
1510 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1511 return NULL;
1512 }
1513 for (int x=0; x<count; x++) {
1514 PyObject* o = PyList_GetItem(source, x);
1515 if (! PyString_Check(o)) {
1516 PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1517 return NULL;
1518 }
1519 temp[x] = PyString_AsString(o);
1520 }
1521 return temp;
1522}
1523
1524//--------------------------------
1525// Part of patch from Tim Hochberg
1526static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1527 if (PyInt_Check(o1) && PyInt_Check(o2)) {
1528 point->x = PyInt_AS_LONG(o1);
1529 point->y = PyInt_AS_LONG(o2);
1530 return true;
1531 }
1532 if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1533 point->x = (int)PyFloat_AS_DOUBLE(o1);
1534 point->y = (int)PyFloat_AS_DOUBLE(o2);
1535 return true;
1536 }
1537 if (PyInstance_Check(o1) || PyInstance_Check(o2)) {
1538 // Disallow instances because they can cause havok
1539 return false;
1540 }
1541 if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1542 // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1543 point->x = PyInt_AsLong(o1);
1544 point->y = PyInt_AsLong(o2);
1545 return true;
1546 }
1547 return false;
1548}
1549
1550
1551wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1552 // Putting all of the declarations here allows
1553 // us to put the error handling all in one place.
1554 int x;
1555 wxPoint* temp;
1556 PyObject *o, *o1, *o2;
1557 bool isFast = PyList_Check(source) || PyTuple_Check(source);
1558
1559 if (!PySequence_Check(source)) {
1560 goto error0;
1561 }
1562
1563 // The length of the sequence is returned in count.
1564 *count = PySequence_Length(source);
1565 if (*count < 0) {
1566 goto error0;
1567 }
1568
1569 temp = new wxPoint[*count];
1570 if (!temp) {
1571 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1572 return NULL;
1573 }
1574 for (x=0; x<*count; x++) {
1575 // Get an item: try fast way first.
1576 if (isFast) {
1577 o = PySequence_Fast_GET_ITEM(source, x);
1578 }
1579 else {
1580 o = PySequence_GetItem(source, x);
1581 if (o == NULL) {
1582 goto error1;
1583 }
1584 }
1585
1586 // Convert o to wxPoint.
1587 if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1588 (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1589 o1 = PySequence_Fast_GET_ITEM(o, 0);
1590 o2 = PySequence_Fast_GET_ITEM(o, 1);
1591 if (!wxPointFromObjects(o1, o2, &temp[x])) {
1592 goto error2;
1593 }
1594 }
1595 else if (PyInstance_Check(o)) {
1596 wxPoint* pt;
1597 if (SWIG_GetPtrObj(o, (void **)&pt, "_wxPoint_p")) {
1598 goto error2;
1599 }
1600 temp[x] = *pt;
1601 }
1602 else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1603 o1 = PySequence_GetItem(o, 0);
1604 o2 = PySequence_GetItem(o, 1);
1605 if (!wxPointFromObjects(o1, o2, &temp[x])) {
1606 goto error3;
1607 }
1608 Py_DECREF(o1);
1609 Py_DECREF(o2);
1610 }
1611 else {
1612 goto error2;
1613 }
1614 // Clean up.
1615 if (!isFast)
1616 Py_DECREF(o);
1617 }
1618 return temp;
1619
1620error3:
1621 Py_DECREF(o1);
1622 Py_DECREF(o2);
1623error2:
1624 if (!isFast)
1625 Py_DECREF(o);
1626error1:
1627 delete temp;
1628error0:
1629 PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
1630 return NULL;
1631}
1632// end of patch
1633//------------------------------
1634
1635
1636wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
1637 if (!PyList_Check(source)) {
1638 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1639 return NULL;
1640 }
1641 int count = PyList_Size(source);
1642 wxBitmap** temp = new wxBitmap*[count];
1643 if (! temp) {
1644 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1645 return NULL;
1646 }
1647 for (int x=0; x<count; x++) {
1648 PyObject* o = PyList_GetItem(source, x);
1649 if (PyInstance_Check(o)) {
1650 wxBitmap* pt;
1651 if (SWIG_GetPtrObj(o, (void **) &pt,"_wxBitmap_p")) {
1652 PyErr_SetString(PyExc_TypeError,"Expected _wxBitmap_p.");
1653 return NULL;
1654 }
1655 temp[x] = pt;
1656 }
1657 else {
1658 PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
1659 return NULL;
1660 }
1661 }
1662 return temp;
1663}
1664
1665
1666
1667wxString* wxString_LIST_helper(PyObject* source) {
1668 if (!PyList_Check(source)) {
1669 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1670 return NULL;
1671 }
1672 int count = PyList_Size(source);
1673 wxString* temp = new wxString[count];
1674 if (! temp) {
1675 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1676 return NULL;
1677 }
1678 for (int x=0; x<count; x++) {
1679 PyObject* o = PyList_GetItem(source, x);
1680#if PYTHON_API_VERSION >= 1009
1681 if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
1682 PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
1683 return NULL;
1684 }
1685#else
1686 if (! PyString_Check(o)) {
1687 PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1688 return NULL;
1689 }
1690#endif
1691
1692 wxString* pStr = wxString_in_helper(o);
1693 temp[x] = *pStr;
1694 delete pStr;
1695 }
1696 return temp;
1697}
1698
1699
1700wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
1701 if (!PyList_Check(source)) {
1702 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1703 return NULL;
1704 }
1705 int count = PyList_Size(source);
1706 wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
1707 if (! temp) {
1708 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1709 return NULL;
1710 }
1711 for (int x=0; x<count; x++) {
1712 PyObject* o = PyList_GetItem(source, x);
1713 if (PyInstance_Check(o)) {
1714 wxAcceleratorEntry* ae;
1715 if (SWIG_GetPtrObj(o, (void **) &ae,"_wxAcceleratorEntry_p")) {
1716 PyErr_SetString(PyExc_TypeError,"Expected _wxAcceleratorEntry_p.");
1717 return NULL;
1718 }
1719 temp[x] = *ae;
1720 }
1721 else if (PyTuple_Check(o)) {
1722 PyObject* o1 = PyTuple_GetItem(o, 0);
1723 PyObject* o2 = PyTuple_GetItem(o, 1);
1724 PyObject* o3 = PyTuple_GetItem(o, 2);
1725 temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
1726 }
1727 else {
1728 PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
1729 return NULL;
1730 }
1731 }
1732 return temp;
1733}
1734
1735
1736wxPen** wxPen_LIST_helper(PyObject* source) {
1737 if (!PyList_Check(source)) {
1738 PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1739 return NULL;
1740 }
1741 int count = PyList_Size(source);
1742 wxPen** temp = new wxPen*[count];
1743 if (!temp) {
1744 PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1745 return NULL;
1746 }
1747 for (int x=0; x<count; x++) {
1748 PyObject* o = PyList_GetItem(source, x);
1749 if (PyInstance_Check(o)) {
1750 wxPen* pt;
1751 if (SWIG_GetPtrObj(o, (void **) &pt,"_wxPen_p")) {
1752 delete temp;
1753 PyErr_SetString(PyExc_TypeError,"Expected _wxPen_p.");
1754 return NULL;
1755 }
1756 temp[x] = pt;
1757 }
1758 else {
1759 delete temp;
1760 PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
1761 return NULL;
1762 }
1763 }
1764 return temp;
1765}
1766
1767
1768bool _2int_seq_helper(PyObject* source, int* i1, int* i2) {
1769 bool isFast = PyList_Check(source) || PyTuple_Check(source);
1770 PyObject *o1, *o2;
1771
1772 if (!PySequence_Check(source) || PySequence_Length(source) != 2)
1773 return FALSE;
1774
1775 if (isFast) {
1776 o1 = PySequence_Fast_GET_ITEM(source, 0);
1777 o2 = PySequence_Fast_GET_ITEM(source, 1);
1778 }
1779 else {
1780 o1 = PySequence_GetItem(source, 0);
1781 o2 = PySequence_GetItem(source, 1);
1782 }
1783
1784 *i1 = PyInt_AsLong(o1);
1785 *i2 = PyInt_AsLong(o2);
1786
1787 if (! isFast) {
1788 Py_DECREF(o1);
1789 Py_DECREF(o2);
1790 }
1791 return TRUE;
1792}
1793
1794
1795bool _4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
1796 bool isFast = PyList_Check(source) || PyTuple_Check(source);
1797 PyObject *o1, *o2, *o3, *o4;
1798
1799 if (!PySequence_Check(source) || PySequence_Length(source) != 4)
1800 return FALSE;
1801
1802 if (isFast) {
1803 o1 = PySequence_Fast_GET_ITEM(source, 0);
1804 o2 = PySequence_Fast_GET_ITEM(source, 1);
1805 o3 = PySequence_Fast_GET_ITEM(source, 2);
1806 o4 = PySequence_Fast_GET_ITEM(source, 3);
1807 }
1808 else {
1809 o1 = PySequence_GetItem(source, 0);
1810 o2 = PySequence_GetItem(source, 1);
1811 o3 = PySequence_GetItem(source, 2);
1812 o4 = PySequence_GetItem(source, 3);
1813 }
1814
1815 *i1 = PyInt_AsLong(o1);
1816 *i2 = PyInt_AsLong(o2);
1817 *i3 = PyInt_AsLong(o3);
1818 *i4 = PyInt_AsLong(o4);
1819
1820 if (! isFast) {
1821 Py_DECREF(o1);
1822 Py_DECREF(o2);
1823 Py_DECREF(o3);
1824 Py_DECREF(o4);
1825 }
1826 return TRUE;
1827}
1828
1829
1830//----------------------------------------------------------------------
1831
1832bool wxSize_helper(PyObject* source, wxSize** obj) {
1833
1834 // If source is an object instance then it may already be the right type
1835 if (PyInstance_Check(source)) {
1836 wxSize* ptr;
1837 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxSize_p"))
1838 goto error;
1839 *obj = ptr;
1840 return TRUE;
1841 }
1842 // otherwise a 2-tuple of integers is expected
1843 else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
1844 PyObject* o1 = PySequence_GetItem(source, 0);
1845 PyObject* o2 = PySequence_GetItem(source, 1);
1846 if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
1847 Py_DECREF(o1);
1848 Py_DECREF(o2);
1849 goto error;
1850 }
1851 **obj = wxSize(PyInt_AsLong(o1), PyInt_AsLong(o2));
1852 Py_DECREF(o1);
1853 Py_DECREF(o2);
1854 return TRUE;
1855 }
1856
1857 error:
1858 PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxSize object.");
1859 return FALSE;
1860}
1861
1862bool wxPoint_helper(PyObject* source, wxPoint** obj) {
1863
1864 // If source is an object instance then it may already be the right type
1865 if (PyInstance_Check(source)) {
1866 wxPoint* ptr;
1867 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint_p"))
1868 goto error;
1869 *obj = ptr;
1870 return TRUE;
1871 }
1872 // otherwise a length-2 sequence of integers is expected
1873 if (PySequence_Check(source) && PySequence_Length(source) == 2) {
1874 PyObject* o1 = PySequence_GetItem(source, 0);
1875 PyObject* o2 = PySequence_GetItem(source, 1);
1876 // This should really check for integers, not numbers -- but that would break code.
1877 if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
1878 Py_DECREF(o1);
1879 Py_DECREF(o2);
1880 goto error;
1881 }
1882 **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
1883 Py_DECREF(o1);
1884 Py_DECREF(o2);
1885 return TRUE;
1886 }
1887 error:
1888 PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxPoint object.");
1889 return FALSE;
1890}
1891
1892
1893
1894bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
1895
1896 // If source is an object instance then it may already be the right type
1897 if (PyInstance_Check(source)) {
1898 wxRealPoint* ptr;
1899 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRealPoint_p"))
1900 goto error;
1901 *obj = ptr;
1902 return TRUE;
1903 }
1904 // otherwise a 2-tuple of floats is expected
1905 else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
1906 PyObject* o1 = PySequence_GetItem(source, 0);
1907 PyObject* o2 = PySequence_GetItem(source, 1);
1908 if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
1909 Py_DECREF(o1);
1910 Py_DECREF(o2);
1911 goto error;
1912 }
1913 **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
1914 Py_DECREF(o1);
1915 Py_DECREF(o2);
1916 return TRUE;
1917 }
1918
1919 error:
1920 PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
1921 return FALSE;
1922}
1923
1924
1925
1926
1927bool wxRect_helper(PyObject* source, wxRect** obj) {
1928
1929 // If source is an object instance then it may already be the right type
1930 if (PyInstance_Check(source)) {
1931 wxRect* ptr;
1932 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRect_p"))
1933 goto error;
1934 *obj = ptr;
1935 return TRUE;
1936 }
1937 // otherwise a 4-tuple of integers is expected
1938 else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
1939 PyObject* o1 = PySequence_GetItem(source, 0);
1940 PyObject* o2 = PySequence_GetItem(source, 1);
1941 PyObject* o3 = PySequence_GetItem(source, 2);
1942 PyObject* o4 = PySequence_GetItem(source, 3);
1943 if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
1944 !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
1945 Py_DECREF(o1);
1946 Py_DECREF(o2);
1947 Py_DECREF(o3);
1948 Py_DECREF(o4);
1949 goto error;
1950 }
1951 **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
1952 PyInt_AsLong(o3), PyInt_AsLong(o4));
1953 Py_DECREF(o1);
1954 Py_DECREF(o2);
1955 Py_DECREF(o3);
1956 Py_DECREF(o4);
1957 return TRUE;
1958 }
1959
1960 error:
1961 PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
1962 return FALSE;
1963}
1964
1965
1966
1967bool wxColour_helper(PyObject* source, wxColour** obj) {
1968
1969 // If source is an object instance then it may already be the right type
1970 if (PyInstance_Check(source)) {
1971 wxColour* ptr;
1972 if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxColour_p"))
1973 goto error;
1974 *obj = ptr;
1975 return TRUE;
1976 }
1977 // otherwise a string is expected
1978 else if (PyString_Check(source)) {
1979 wxString spec(PyString_AS_STRING(source), *wxConvCurrent);
1980 if (spec.GetChar(0) == '#' && spec.Length() == 7) { // It's #RRGGBB
1981 long red, green, blue;
1982 red = green = blue = 0;
1983 spec.Mid(1,2).ToLong(&red, 16);
1984 spec.Mid(3,2).ToLong(&green, 16);
1985 spec.Mid(5,2).ToLong(&blue, 16);
1986
1987 **obj = wxColour(red, green, blue);
1988 return TRUE;
1989 }
1990 else { // it's a colour name
1991 **obj = wxColour(spec);
1992 return TRUE;
1993 }
1994 }
1995
1996 error:
1997 PyErr_SetString(PyExc_TypeError,
1998 "Expected a wxColour object or a string containing a colour "
1999 "name or '#RRGGBB'.");
2000 return FALSE;
2001}
2002
2003
2004//----------------------------------------------------------------------
2005
2006PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2007
2008 PyObject* list = PyList_New(0);
2009 for (size_t i=0; i < arr.GetCount(); i++) {
2010#if wxUSE_UNICODE
2011 PyObject* str = PyUnicode_FromUnicode(arr[i].c_str(), arr[i].Len());
2012#else
2013 PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2014#endif
2015 PyList_Append(list, str);
2016 Py_DECREF(str);
2017 }
2018 return list;
2019}
2020
2021
2022PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2023
2024 PyObject* list = PyList_New(0);
2025 for (size_t i=0; i < arr.GetCount(); i++) {
2026 PyObject* number = PyInt_FromLong(arr[i]);
2027 PyList_Append(list, number);
2028 Py_DECREF(number);
2029 }
2030 return list;
2031}
2032
2033
2034//----------------------------------------------------------------------
2035//----------------------------------------------------------------------
2036
2037
2038
2039
wxWidgets (Impactor)