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:     1-July-1997
   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 "wx/wxPython/wxPython_int.h"
  17 #include "wx/wxPython/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 <gdk/gdk.h>
  27 #include <gdk/gdkx.h>
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkprivate.h>
  30 #include <wx/gtk/win_gtk.h>
  31 #define GetXWindow(wxwin) (wxwin)->m_wxwindow ? \
  32                               GDK_WINDOW_XWINDOW(GTK_PIZZA((wxwin)->m_wxwindow)->bin_window) : \
  33                               GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
  34 #include <locale.h>
  35 #endif
  36
  37 #ifdef __WXX11__
  38 #include "wx/x11/privx.h"
  39 #define GetXWindow(wxwin)   ((Window)(wxwin)->GetHandle())
  40 #endif
  41
  42 #ifdef __WXMAC__
  43 #include <wx/mac/private.h>
  44 #endif
  45
  46 #include <wx/clipbrd.h>
  47 #include <wx/mimetype.h>
  48 #include <wx/image.h>
  49
  50 //----------------------------------------------------------------------
  51
  52 #if PYTHON_API_VERSION < 1009 && wxUSE_UNICODE
  53 #error Python must support Unicode to use wxWindows Unicode
  54 #endif
  55
  56 //----------------------------------------------------------------------
  57
  58 wxPyApp* wxPythonApp = NULL;  // Global instance of application object
  59 bool wxPyDoCleanup = false;
  60 bool wxPyDoingCleanup = false;
  61
  62
  63 #ifdef WXP_WITH_THREAD
  64 struct wxPyThreadState {
  65     unsigned long  tid;
  66     PyThreadState* tstate;
  67
  68     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  69         : tid(_tid), tstate(_tstate) {}
  70 };
  71
  72 #include <wx/dynarray.h>
  73 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  74 #include <wx/arrimpl.cpp>
  75 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  76
  77 wxPyThreadStateArray* wxPyTStates = NULL;
  78 wxMutex*              wxPyTMutex = NULL;
  79 #endif
  80
  81
  82 static PyObject* wxPython_dict = NULL;
  83 static PyObject* wxPyAssertionError = NULL;
  84 static PyObject* wxPyNoAppError = NULL;
  85
  86 PyObject* wxPyPtrTypeMap = NULL;
  87
  88
  89 #ifdef __WXMSW__             // If building for win32...
  90 //----------------------------------------------------------------------
  91 // This gets run when the DLL is loaded.  We just need to save a handle.
  92 //----------------------------------------------------------------------
  93
  94 BOOL WINAPI DllMain(
  95     HINSTANCE   hinstDLL,    // handle to DLL module
  96     DWORD       fdwReason,   // reason for calling function
  97     LPVOID      lpvReserved  // reserved
  98    )
  99 {
 100     // If wxPython is embedded in another wxWindows app then
 101     // the inatance has already been set.
 102     if (! wxGetInstance())
 103         wxSetInstance(hinstDLL);
 104     return true;
 105 }
 106 #endif
 107
 108 //----------------------------------------------------------------------
 109 // Classes for implementing the wxp main application shell.
 110 //----------------------------------------------------------------------
 111
 112 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
 113
 114
 115 wxPyApp::wxPyApp() {
 116     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 117     m_startupComplete = false;
 118 }
 119
 120
 121 wxPyApp::~wxPyApp() {
 122 }
 123
 124
 125 // This one isn't acutally called...  We fake it with _BootstrapApp
 126 bool wxPyApp::OnInit() {
 127     return false;
 128 }
 129
 130
 131 int  wxPyApp::MainLoop() {
 132     int retval = 0;
 133
 134     DeletePendingObjects();
 135     bool initialized = wxTopLevelWindows.GetCount() != 0;
 136     if (initialized) {
 137         if ( m_exitOnFrameDelete == Later ) {
 138             m_exitOnFrameDelete = Yes;
 139         }
 140
 141         retval = wxApp::MainLoop();
 142         OnExit();
 143     }
 144     return retval;
 145 }
 146
 147
 148 bool wxPyApp::OnInitGui() {
 149     bool rval=true;
 150     wxApp::OnInitGui();  // in this case always call the base class version
 151     bool blocked = wxPyBeginBlockThreads();
 152     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 153         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 154     wxPyEndBlockThreads(blocked);
 155     return rval;
 156 }
 157
 158
 159 int wxPyApp::OnExit() {
 160     int rval=0;
 161     bool blocked = wxPyBeginBlockThreads();
 162     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 163         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 164     wxPyEndBlockThreads(blocked);
 165     wxApp::OnExit();  // in this case always call the base class version
 166     return rval;
 167 }
 168
 169
 170 #ifdef __WXDEBUG__
 171 void wxPyApp::OnAssert(const wxChar *file,
 172                      int line,
 173                      const wxChar *cond,
 174                      const wxChar *msg) {
 175
 176     // if we're not fully initialized then just log the error
 177     if (! m_startupComplete) {
 178         wxString buf;
 179         buf.Alloc(4096);
 180         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 181                    file, line, cond);
 182         if (msg != NULL) {
 183             buf += wxT(": ");
 184             buf += msg;
 185         }
 186         wxLogDebug(buf);
 187         return;
 188     }
 189
 190     // If the OnAssert is overloaded in the Python class then call it...
 191     bool found;
 192     bool blocked = wxPyBeginBlockThreads();
 193     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 194         PyObject* fso = wx2PyString(file);
 195         PyObject* cso = wx2PyString(file);
 196         PyObject* mso;
 197         if (msg != NULL)
 198             mso = wx2PyString(file);
 199         else {
 200             mso = Py_None; Py_INCREF(Py_None);
 201         }
 202         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 203         Py_DECREF(fso);
 204         Py_DECREF(cso);
 205         Py_DECREF(mso);
 206     }
 207     wxPyEndBlockThreads(blocked);
 208
 209     // ...otherwise do our own thing with it
 210     if (! found) {
 211         // ignore it?
 212         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 213             return;
 214
 215         // turn it into a Python exception?
 216         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 217             wxString buf;
 218             buf.Alloc(4096);
 219             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 220             if (msg != NULL) {
 221                 buf += wxT(": ");
 222                 buf += msg;
 223             }
 224
 225             // set the exception
 226             bool blocked = wxPyBeginBlockThreads();
 227             PyObject* s = wx2PyString(buf);
 228             PyErr_SetObject(wxPyAssertionError, s);
 229             Py_DECREF(s);
 230             wxPyEndBlockThreads(blocked);
 231
 232             // Now when control returns to whatever API wrapper was called from
 233             // Python it should detect that an exception is set and will return
 234             // NULL, signalling the exception to Python.
 235         }
 236
 237         // Send it to the normal log destination, but only if
 238         // not _DIALOG because it will call this too
 239         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 240             wxString buf;
 241             buf.Alloc(4096);
 242             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 243                        file, line, cond);
 244             if (msg != NULL) {
 245                 buf += wxT(": ");
 246                 buf += msg;
 247             }
 248             wxLogDebug(buf);
 249         }
 250
 251         // do the normal wx assert dialog?
 252         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 253             wxApp::OnAssert(file, line, cond, msg);
 254     }
 255 }
 256 #endif
 257
 258     // For catching Apple Events
 259 void wxPyApp::MacOpenFile(const wxString &fileName)
 260 {
 261     bool blocked = wxPyBeginBlockThreads();
 262     if (wxPyCBH_findCallback(m_myInst, "MacOpenFile")) {
 263         PyObject* s = wx2PyString(fileName);
 264         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 265         Py_DECREF(s);
 266     }
 267     wxPyEndBlockThreads(blocked);
 268 }
 269
 270 void wxPyApp::MacPrintFile(const wxString &fileName)
 271 {
 272     bool blocked = wxPyBeginBlockThreads();
 273     if (wxPyCBH_findCallback(m_myInst, "MacPrintFile")) {
 274         PyObject* s = wx2PyString(fileName);
 275         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 276         Py_DECREF(s);
 277     }
 278     wxPyEndBlockThreads(blocked);
 279 }
 280
 281 void wxPyApp::MacNewFile()
 282 {
 283     bool blocked = wxPyBeginBlockThreads();
 284     if (wxPyCBH_findCallback(m_myInst, "MacNewFile"))
 285         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 286     wxPyEndBlockThreads(blocked);
 287 }
 288
 289 void wxPyApp::MacReopenApp()
 290 {
 291     bool blocked = wxPyBeginBlockThreads();
 292     if (wxPyCBH_findCallback(m_myInst, "MacReopenApp"))
 293         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 294     wxPyEndBlockThreads(blocked);
 295 }
 296
 297
 298 /*static*/
 299 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 300 #ifdef __WXMAC__
 301     return s_macSupportPCMenuShortcuts;
 302 #else
 303     return 0;
 304 #endif
 305 }
 306
 307 /*static*/
 308 long wxPyApp::GetMacAboutMenuItemId() {
 309 #ifdef __WXMAC__
 310     return s_macAboutMenuItemId;
 311 #else
 312     return 0;
 313 #endif
 314 }
 315
 316 /*static*/
 317 long wxPyApp::GetMacPreferencesMenuItemId() {
 318 #ifdef __WXMAC__
 319     return s_macPreferencesMenuItemId;
 320 #else
 321     return 0;
 322 #endif
 323 }
 324
 325 /*static*/
 326 long wxPyApp::GetMacExitMenuItemId() {
 327 #ifdef __WXMAC__
 328     return s_macExitMenuItemId;
 329 #else
 330     return 0;
 331 #endif
 332 }
 333
 334 /*static*/
 335 wxString wxPyApp::GetMacHelpMenuTitleName() {
 336 #ifdef __WXMAC__
 337     return s_macHelpMenuTitleName;
 338 #else
 339     return wxEmptyString;
 340 #endif
 341 }
 342
 343 /*static*/
 344 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 345 #ifdef __WXMAC__
 346     s_macSupportPCMenuShortcuts = val;
 347 #endif
 348 }
 349
 350 /*static*/
 351 void wxPyApp::SetMacAboutMenuItemId(long val) {
 352 #ifdef __WXMAC__
 353     s_macAboutMenuItemId = val;
 354 #endif
 355 }
 356
 357 /*static*/
 358 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 359 #ifdef __WXMAC__
 360     s_macPreferencesMenuItemId = val;
 361 #endif
 362 }
 363
 364 /*static*/
 365 void wxPyApp::SetMacExitMenuItemId(long val) {
 366 #ifdef __WXMAC__
 367     s_macExitMenuItemId = val;
 368 #endif
 369 }
 370
 371 /*static*/
 372 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 373 #ifdef __WXMAC__
 374     s_macHelpMenuTitleName = val;
 375 #endif
 376 }
 377
 378
 379 // This finishes the initialization of wxWindows and then calls the OnInit
 380 // that should be present in the derived (Python) class.
 381 void wxPyApp::_BootstrapApp()
 382 {
 383     static      bool haveInitialized = false;
 384     bool        result, blocked;
 385     PyObject*   retval = NULL;
 386     PyObject*   pyint  = NULL;
 387
 388
 389     // Only initialize wxWidgets once
 390     if (! haveInitialized) {
 391
 392         // Get any command-line args passed to this program from the sys module
 393         int    argc = 0;
 394         char** argv = NULL;
 395         blocked = wxPyBeginBlockThreads();
 396         PyObject* sysargv = PySys_GetObject("argv");
 397         if (sysargv != NULL) {
 398             argc = PyList_Size(sysargv);
 399             argv = new char*[argc+1];
 400             int x;
 401             for(x=0; x<argc; x++) {
 402                 PyObject *pyArg = PyList_GetItem(sysargv, x);
 403                 argv[x] = PyString_AsString(pyArg);
 404             }
 405             argv[argc] = NULL;
 406         }
 407         wxPyEndBlockThreads(blocked);
 408
 409         // Initialize wxWidgets
 410         result = wxEntryStart(argc, argv);
 411         delete [] argv;
 412
 413         blocked = wxPyBeginBlockThreads();
 414         if (! result)  {
 415             PyErr_SetString(PyExc_SystemError,
 416                             "wxEntryStart failed, unable to initialize wxWidgets!"
 417 #ifdef __WXGTK__
 418                             "  (Is DISPLAY set properly?)"
 419 #endif
 420                 );
 421             goto error;
 422         }
 423
 424         // On wxGTK the locale will be changed to match the system settings,
 425         // but Python before 2.4 needs to have LC_NUMERIC set to "C" in order
 426         // for the floating point conversions and such to work right.
 427 #if defined(__WXGTK__) && PY_VERSION_HEX < 0x02040000
 428         setlocale(LC_NUMERIC, "C");
 429 #endif
 430
 431         // The stock objects were all NULL when they were loaded into
 432         // SWIG generated proxies, so re-init those now...
 433         wxPy_ReinitStockObjects(3);
 434
 435         wxPyEndBlockThreads(blocked);
 436         haveInitialized = true;
 437     }
 438
 439     // It's now ok to generate exceptions for assertion errors.
 440     wxPythonApp->SetStartupComplete(true);
 441
 442     // Call the Python wxApp's OnInit function
 443     blocked = wxPyBeginBlockThreads();
 444     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 445
 446         PyObject* method = m_myInst.GetLastFound();
 447         PyObject* argTuple = PyTuple_New(0);
 448         retval = PyEval_CallObject(method, argTuple);
 449         Py_DECREF(argTuple);
 450         Py_DECREF(method);
 451         if (retval == NULL)
 452             goto error;
 453
 454         pyint = PyNumber_Int(retval);
 455         if (! pyint) {
 456             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 457             goto error;
 458         }
 459         result = PyInt_AS_LONG(pyint);
 460     }
 461     else {
 462         // Is it okay if there is no OnInit?  Probably so...
 463         result = true;
 464     }
 465
 466     if (! result) {
 467         PyErr_SetString(PyExc_SystemExit, "OnInit returned false, exiting...");
 468     }
 469
 470  error:
 471     Py_XDECREF(retval);
 472     Py_XDECREF(pyint);
 473
 474     wxPyEndBlockThreads(blocked);
 475 };
 476
 477 //---------------------------------------------------------------------
 478 //----------------------------------------------------------------------
 479
 480
 481 #if 0
 482 static char* wxPyCopyCString(const wxChar* src)
 483 {
 484     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 485     size_t len = strlen(buff);
 486     char*  dest = new char[len+1];
 487     strcpy(dest, buff);
 488     return dest;
 489 }
 490
 491 #if wxUSE_UNICODE
 492 static char* wxPyCopyCString(const char* src)   // we need a char version too
 493 {
 494     size_t len = strlen(src);
 495     char*  dest = new char[len+1];
 496     strcpy(dest, src);
 497     return dest;
 498 }
 499 #endif
 500
 501 static wxChar* wxPyCopyWString(const char *src)
 502 {
 503     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 504     wxString str(src, *wxConvCurrent);
 505     return copystring(str);
 506 }
 507
 508 #if wxUSE_UNICODE
 509 static wxChar* wxPyCopyWString(const wxChar *src)
 510 {
 511     return copystring(src);
 512 }
 513 #endif
 514 #endif
 515
 516
 517 inline const char* dropwx(const char* name) {
 518     if (name[0] == 'w' && name[1] == 'x')
 519         return name+2;
 520     else
 521         return name;
 522 }
 523
 524 //----------------------------------------------------------------------
 525
 526 // This function is called when the wx._core_ module is imported to do some
 527 // initial setup.  (Before there is a wxApp object.)  The rest happens in
 528 // wxPyApp::_BootstrapApp
 529 void __wxPyPreStart(PyObject* moduleDict)
 530 {
 531
 532 #ifdef __WXMSW__
 533 //     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF
 534 //                     | _CRTDBG_CHECK_ALWAYS_DF
 535 //                     | _CRTDBG_DELAY_FREE_MEM_DF
 536 //         );
 537 #endif
 538
 539 #ifdef WXP_WITH_THREAD
 540     PyEval_InitThreads();
 541     wxPyTStates = new wxPyThreadStateArray;
 542     wxPyTMutex = new wxMutex;
 543
 544     // Save the current (main) thread state in our array
 545     PyThreadState* tstate = wxPyBeginAllowThreads();
 546     wxPyEndAllowThreads(tstate);
 547 #endif
 548
 549     // Ensure that the build options in the DLL (or whatever) match this build
 550     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 551
 552     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 553     wxPy_ReinitStockObjects(1);
 554
 555     wxInitAllImageHandlers();
 556 }
 557
 558
 559
 560 void __wxPyCleanup() {
 561     wxPyDoingCleanup = true;
 562     if (wxPyDoCleanup) {
 563         wxPyDoCleanup = false;
 564         wxEntryCleanup();
 565     }
 566 #ifdef WXP_WITH_THREAD
 567     delete wxPyTMutex;
 568     wxPyTMutex = NULL;
 569     wxPyTStates->Empty();
 570     delete wxPyTStates;
 571     wxPyTStates = NULL;
 572 #endif
 573 }
 574
 575
 576 // Save a reference to the dictionary of the wx._core module, and inject
 577 // a few more things into it.
 578 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 579 {
 580
 581     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 582         return NULL;
 583
 584     if (!PyDict_Check(wxPython_dict)) {
 585         PyErr_SetString(PyExc_TypeError,
 586                         "_wxPySetDictionary must have dictionary object!");
 587         return NULL;
 588     }
 589
 590     if (! wxPyPtrTypeMap)
 591         wxPyPtrTypeMap = PyDict_New();
 592     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 593
 594     // Create an exception object to use for wxASSERTions
 595     wxPyAssertionError = PyErr_NewException("wx._core.PyAssertionError",
 596                                             PyExc_AssertionError, NULL);
 597     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 598
 599     // Create an exception object to use when the app object hasn't been created yet
 600     wxPyNoAppError = PyErr_NewException("wx._core.PyNoAppError",
 601                                         PyExc_RuntimeError, NULL);
 602     PyDict_SetItemString(wxPython_dict, "PyNoAppError", wxPyNoAppError);
 603
 604
 605
 606 #ifdef __WXMOTIF__
 607 #define wxPlatform "__WXMOTIF__"
 608 #define wxPlatName "wxMotif"
 609 #endif
 610 #ifdef __WXX11__
 611 #define wxPlatform "__WXX11__"
 612 #define wxPlatName "wxX11"
 613 #endif
 614 #ifdef __WXGTK__
 615 #define wxPlatform "__WXGTK__"
 616 #define wxPlatName "wxGTK"
 617 #endif
 618 #ifdef __WXMSW__
 619 #define wxPlatform "__WXMSW__"
 620 #define wxPlatName "wxMSW"
 621 #endif
 622 #ifdef __WXMAC__
 623 #define wxPlatform "__WXMAC__"
 624 #define wxPlatName "wxMac"
 625 #endif
 626
 627 #ifdef __WXDEBUG__
 628     int wxdebug = 1;
 629 #else
 630     int wxdebug = 0;
 631 #endif
 632
 633     // These should be deprecated in favor of the PlatformInfo tuple built below...
 634     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 635     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 636     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 637
 638     // Make a tuple of strings that gives more info about the platform.
 639     PyObject* PlatInfo = PyList_New(0);
 640     PyObject* obj;
 641
 642 #define _AddInfoString(st) \
 643     obj = PyString_FromString(st); \
 644     PyList_Append(PlatInfo, obj); \
 645     Py_DECREF(obj)
 646
 647     _AddInfoString(wxPlatform);
 648     _AddInfoString(wxPlatName);
 649 #if wxUSE_UNICODE
 650     _AddInfoString("unicode");
 651 #else
 652     _AddInfoString("ansi");
 653 #endif
 654 #ifdef __WXGTK__
 655 #ifdef __WXGTK20__
 656     _AddInfoString("gtk2");
 657 #else
 658     _AddInfoString("gtk1");
 659 #endif
 660 #endif
 661 #ifdef __WXDEBUG__
 662     _AddInfoString("wx-assertions-on");
 663 #else
 664     _AddInfoString("wx-assertions-off");
 665 #endif
 666
 667 #undef _AddInfoString
 668
 669     PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
 670     Py_DECREF(PlatInfo);
 671     PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple);
 672
 673     RETURN_NONE();
 674 }
 675
 676
 677 //---------------------------------------------------------------------------
 678
 679 // Python's PyInstance_Check does not return True for instances of new-style
 680 // classes.  This should get close enough for both new and old classes but I
 681 // should re-evaluate the need for doing instance checks...
 682 bool wxPyInstance_Check(PyObject* obj) {
 683     return PyObject_HasAttrString(obj, "__class__") != 0;
 684 }
 685
 686
 687 // This one checks if the object is an instance of a SWIG proxy class (it has
 688 // a .this attribute)
 689 bool wxPySwigInstance_Check(PyObject* obj) {
 690     return PyObject_HasAttrString(obj, "this") != 0;
 691 }
 692
 693 //---------------------------------------------------------------------------
 694
 695 // The stock objects are no longer created when the wx._core_ module is
 696 // imported, but only after the app object has been created.  The
 697 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 698 // objects though various stages of evolution:
 699 //
 700 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 701 //           object will be created (otherwise SWIG will just use None.)
 702 //
 703 //   pass 2: After the module has been imported and the python proxys have
 704 //           been created, then set the __class__ to be _wxPyUnbornObject so
 705 //           it will catch any access to the object and will raise an exception.
 706 //
 707 //   pass 3: Finally, from BootstrapApp patch things up so the stock objects
 708 //           can be used.
 709
 710
 711 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 712 {
 713     wxPy_ReinitStockObjects(2);
 714     RETURN_NONE();
 715 }
 716
 717
 718 static void rsoPass2(const char* name)
 719 {
 720     static PyObject* unbornObjectClass = NULL;
 721     PyObject* obj;
 722
 723     if (unbornObjectClass == NULL) {
 724         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 725         Py_INCREF(unbornObjectClass);
 726     }
 727
 728     // Find the object instance
 729     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 730     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 731     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 732
 733     // Change its class
 734     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 735
 736 }
 737
 738 static void rsoPass3(const char* name, const char* classname, void* ptr)
 739 {
 740     PyObject* obj;
 741     PyObject* classobj;
 742     PyObject* ptrobj;
 743
 744     // Find the object instance
 745     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 746     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 747     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 748
 749     // Find the class object and put it back in the instance
 750     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 751     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 752     PyObject_SetAttrString(obj, "__class__",  classobj);
 753
 754     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 755     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 756     PyObject_SetAttrString(obj, "this", ptrobj);
 757     Py_DECREF(ptrobj);
 758 }
 759
 760
 761
 762 void wxPy_ReinitStockObjects(int pass)
 763 {
 764
 765     // If there is already an App object then wxPython is probably embedded in
 766     // a wx C++ application, so there is no need to do all this.
 767     static bool embedded = false;
 768     if ((pass == 1 || pass == 2) && wxTheApp) {
 769         embedded = true;
 770         return;
 771     }
 772     if (pass == 3 && embedded)
 773         return;
 774
 775
 776 #define REINITOBJ(name, classname) \
 777     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 778     else if (pass == 2) { rsoPass2(#name); } \
 779     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 780
 781
 782 #define REINITOBJ2(name, classname) \
 783     if (pass == 1) { } \
 784     else if (pass == 2) { rsoPass2(#name); } \
 785     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 786
 787
 788     REINITOBJ(wxNORMAL_FONT, wxFont);
 789     REINITOBJ(wxSMALL_FONT, wxFont);
 790     REINITOBJ(wxITALIC_FONT, wxFont);
 791     REINITOBJ(wxSWISS_FONT, wxFont);
 792
 793     REINITOBJ(wxRED_PEN, wxPen);
 794     REINITOBJ(wxCYAN_PEN, wxPen);
 795     REINITOBJ(wxGREEN_PEN, wxPen);
 796     REINITOBJ(wxBLACK_PEN, wxPen);
 797     REINITOBJ(wxWHITE_PEN, wxPen);
 798     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 799     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 800     REINITOBJ(wxGREY_PEN, wxPen);
 801     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 802     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 803
 804     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 805     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 806     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 807     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 808     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 809     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 810     REINITOBJ(wxRED_BRUSH, wxBrush);
 811     REINITOBJ(wxGREY_BRUSH, wxBrush);
 812     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 813     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 814
 815     REINITOBJ(wxBLACK, wxColour);
 816     REINITOBJ(wxWHITE, wxColour);
 817     REINITOBJ(wxRED, wxColour);
 818     REINITOBJ(wxBLUE, wxColour);
 819     REINITOBJ(wxGREEN, wxColour);
 820     REINITOBJ(wxCYAN, wxColour);
 821     REINITOBJ(wxLIGHT_GREY, wxColour);
 822
 823     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 824     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 825     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 826
 827     REINITOBJ2(wxNullBitmap, wxBitmap);
 828     REINITOBJ2(wxNullIcon, wxIcon);
 829     REINITOBJ2(wxNullCursor, wxCursor);
 830     REINITOBJ2(wxNullPen, wxPen);
 831     REINITOBJ2(wxNullBrush, wxBrush);
 832     REINITOBJ2(wxNullPalette, wxPalette);
 833     REINITOBJ2(wxNullFont, wxFont);
 834     REINITOBJ2(wxNullColour, wxColour);
 835
 836     REINITOBJ(wxTheFontList, wxFontList);
 837     REINITOBJ(wxThePenList, wxPenList);
 838     REINITOBJ(wxTheBrushList, wxBrushList);
 839     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 840
 841
 842     REINITOBJ2(wxDefaultValidator, wxValidator);
 843     REINITOBJ2(wxNullImage, wxImage);
 844     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 845
 846 #undef REINITOBJ
 847 #undef REINITOBJ2
 848 }
 849
 850 //---------------------------------------------------------------------------
 851
 852 // Check for existence of a wxApp, setting an exception if there isn't one.
 853 // This doesn't need to aquire the GIL because it should only be called from
 854 // an %exception before the lock is released.
 855
 856 bool wxPyCheckForApp() {
 857     if (wxTheApp != NULL)
 858         return true;
 859     else {
 860         PyErr_SetString(wxPyNoAppError, "The wx.App object must be created first!");
 861         return false;
 862     }
 863 }
 864
 865 //---------------------------------------------------------------------------
 866
 867
 868 void wxPyClientData_dtor(wxPyClientData* self) {
 869     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 870                                         // may have already garbage collected the object...
 871         bool blocked = wxPyBeginBlockThreads();
 872         Py_DECREF(self->m_obj);
 873         self->m_obj = NULL;
 874         wxPyEndBlockThreads(blocked);
 875     }
 876 }
 877
 878 void wxPyUserData_dtor(wxPyUserData* self) {
 879     if (! wxPyDoingCleanup) {
 880         bool blocked = wxPyBeginBlockThreads();
 881         Py_DECREF(self->m_obj);
 882         self->m_obj = NULL;
 883         wxPyEndBlockThreads(blocked);
 884     }
 885 }
 886
 887
 888 // This is called when an OOR controled object is being destroyed.  Although
 889 // the C++ object is going away there is no way to force the Python object
 890 // (and all references to it) to die too.  This causes problems (crashes) in
 891 // wxPython when a python shadow object attempts to call a C++ method using
 892 // the now bogus pointer... So to try and prevent this we'll do a little black
 893 // magic and change the class of the python instance to a class that will
 894 // raise an exception for any attempt to call methods with it.  See
 895 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 896 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 897
 898     static PyObject* deadObjectClass = NULL;
 899
 900     bool blocked = wxPyBeginBlockThreads();
 901     if (deadObjectClass == NULL) {
 902         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 903         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 904         // will lead to a deadlock when it tries to aquire the GIL again.
 905         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 906         Py_INCREF(deadObjectClass);
 907     }
 908
 909
 910     // Only if there is more than one reference to the object
 911     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 912         // bool isInstance = wxPyInstance_Check(self->m_obj);
 913         // TODO same here
 914         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 915
 916         // Call __del__, if there is one.
 917         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 918         if (func) {
 919             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 920             Py_XDECREF(rv);
 921             Py_DECREF(func);
 922         }
 923         if (PyErr_Occurred())
 924             PyErr_Clear();      // just ignore it for now
 925
 926
 927         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 928         if (dict) {
 929             // Clear the instance's dictionary
 930             PyDict_Clear(dict);
 931
 932             // put the name of the old class into the instance, and then reset the
 933             // class to be the dead class.
 934             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 935             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 936             PyDict_SetItemString(dict, "_name", name);
 937             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 938             //Py_INCREF(deadObjectClass);
 939             Py_DECREF(klass);
 940             Py_DECREF(name);
 941         }
 942     }
 943
 944     // m_obj is DECREF'd in the base class dtor...
 945     wxPyEndBlockThreads(blocked);
 946 }
 947
 948
 949 //---------------------------------------------------------------------------
 950 // Stuff used by OOR to find the right wxPython class type to return and to
 951 // build it.
 952
 953
 954 // The pointer type map is used when the "pointer" type name generated by SWIG
 955 // is not the same as the shadow class name, for example wxPyTreeCtrl
 956 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 957 // so we'll just make it a Python dictionary in the wx module's namespace.
 958 // (See __wxSetDictionary)
 959 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 960     if (! wxPyPtrTypeMap)
 961         wxPyPtrTypeMap = PyDict_New();
 962     PyDict_SetItemString(wxPyPtrTypeMap,
 963                          (char*)commonName,
 964                          PyString_FromString((char*)ptrName));
 965 }
 966
 967
 968
 969
 970 PyObject*  wxPyMake_wxObject(wxObject* source, bool setThisOwn, bool checkEvtHandler) {
 971     PyObject* target = NULL;
 972     bool      isEvtHandler = false;
 973
 974     if (source) {
 975         // If it's derived from wxEvtHandler then there may
 976         // already be a pointer to a Python object that we can use
 977         // in the OOR data.
 978         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 979             isEvtHandler = true;
 980             wxEvtHandler* eh = (wxEvtHandler*)source;
 981             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 982             if (data) {
 983                 target = data->m_obj;
 984                 if (target)
 985                     Py_INCREF(target);
 986             }
 987         }
 988
 989         if (! target) {
 990             // Otherwise make it the old fashioned way by making a new shadow
 991             // object and putting this pointer in it.  Look up the class
 992             // heirarchy until we find a class name that is located in the
 993             // python module.
 994             const wxClassInfo* info   = source->GetClassInfo();
 995             wxString           name   = info->GetClassName();
 996             bool               exists = wxPyCheckSwigType(name);
 997             while (info && !exists) {
 998                 info = info->GetBaseClass1();
 999                 name = info->GetClassName();
1000                 exists = wxPyCheckSwigType(name);
1001             }
1002             if (info) {
1003                 target = wxPyConstructObject((void*)source, name, setThisOwn);
1004                 if (target && isEvtHandler)
1005                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
1006             } else {
1007                 wxString msg(wxT("wxPython class not found for "));
1008                 msg += source->GetClassInfo()->GetClassName();
1009                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
1010                 target = NULL;
1011             }
1012         }
1013     } else {  // source was NULL so return None.
1014         Py_INCREF(Py_None); target = Py_None;
1015     }
1016     return target;
1017 }
1018
1019
1020 PyObject*  wxPyMake_wxSizer(wxSizer* source, bool setThisOwn) {
1021     PyObject* target = NULL;
1022
1023     if (source && wxIsKindOf(source, wxSizer)) {
1024         // If it's derived from wxSizer then there may already be a pointer to
1025         // a Python object that we can use in the OOR data.
1026         wxSizer* sz = (wxSizer*)source;
1027         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
1028         if (data) {
1029             target = data->m_obj;
1030             if (target)
1031                 Py_INCREF(target);
1032         }
1033     }
1034     if (! target) {
1035         target = wxPyMake_wxObject(source, setThisOwn, false);
1036         if (target != Py_None)
1037             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
1038     }
1039     return target;
1040 }
1041
1042
1043 //---------------------------------------------------------------------------
1044
1045
1046 #ifdef WXP_WITH_THREAD
1047 inline
1048 unsigned long wxPyGetCurrentThreadId() {
1049     return wxThread::GetCurrentId();
1050 }
1051
1052 static wxPyThreadState gs_shutdownTState;
1053
1054 static
1055 wxPyThreadState* wxPyGetThreadState() {
1056     if (wxPyTMutex == NULL) // Python is shutting down...
1057         return &gs_shutdownTState;
1058
1059     unsigned long ctid = wxPyGetCurrentThreadId();
1060     wxPyThreadState* tstate = NULL;
1061
1062     wxPyTMutex->Lock();
1063     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1064         wxPyThreadState& info = wxPyTStates->Item(i);
1065         if (info.tid == ctid) {
1066             tstate = &info;
1067             break;
1068         }
1069     }
1070     wxPyTMutex->Unlock();
1071     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
1072     return tstate;
1073 }
1074
1075
1076 static
1077 void wxPySaveThreadState(PyThreadState* tstate) {
1078     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
1079         gs_shutdownTState.tstate = tstate;
1080         return;
1081     }
1082     unsigned long ctid = wxPyGetCurrentThreadId();
1083     wxPyTMutex->Lock();
1084     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1085         wxPyThreadState& info = wxPyTStates->Item(i);
1086         if (info.tid == ctid) {
1087 #if 0
1088             if (info.tstate != tstate)
1089                 wxLogMessage("*** tstate mismatch!???");
1090 #endif
1091             info.tstate = tstate;    // allow for transient tstates
1092             // Normally it will never change, but apparently COM callbacks
1093             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
1094             // tstate which will then be garbage the next time we try to use
1095             // it...
1096
1097             wxPyTMutex->Unlock();
1098             return;
1099         }
1100     }
1101     // not found, so add it...
1102     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
1103     wxPyTMutex->Unlock();
1104 }
1105
1106 #endif
1107
1108
1109
1110 // Calls from Python to wxWindows code are wrapped in calls to these
1111 // functions:
1112
1113 PyThreadState* wxPyBeginAllowThreads() {
1114 #ifdef WXP_WITH_THREAD
1115     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
1116     wxPySaveThreadState(saved);
1117     return saved;
1118 #else
1119     return NULL;
1120 #endif
1121 }
1122
1123 void wxPyEndAllowThreads(PyThreadState* saved) {
1124 #ifdef WXP_WITH_THREAD
1125     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
1126 #endif
1127 }
1128
1129
1130
1131 // Calls from wxWindows back to Python code, or even any PyObject
1132 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
1133
1134 bool wxPyBeginBlockThreads() {
1135 #ifdef WXP_WITH_THREAD
1136     // This works in for 2.3, maybe a good alternative to find the needed tstate?
1137     // PyThreadState *check = PyGILState_GetThisThreadState();
1138
1139     PyThreadState *current = _PyThreadState_Current;
1140
1141     // Only block if there wasn't already a tstate, or if the current one is
1142     // not the one we are wanting to change to.  This should prevent deadlock
1143     // if there are nested calls to wxPyBeginBlockThreads
1144     bool blocked = false;
1145     wxPyThreadState* tstate = wxPyGetThreadState();
1146     if (current != tstate->tstate) {
1147         PyEval_RestoreThread(tstate->tstate);
1148         blocked = true;
1149     }
1150     return blocked;
1151 #endif
1152 }
1153
1154
1155 void wxPyEndBlockThreads(bool blocked) {
1156 #ifdef WXP_WITH_THREAD
1157     // Only unblock if we blocked in the last call to wxPyBeginBlockThreads.
1158     // The value of blocked passed in needs to be the same as that returned
1159     // from wxPyBeginBlockThreads at the same nesting level.
1160     if ( blocked ) {
1161         PyEval_SaveThread();
1162     }
1163 #endif
1164 }
1165
1166
1167 //---------------------------------------------------------------------------
1168 // wxPyInputStream and wxPyCBInputStream methods
1169
1170
1171 void wxPyInputStream::close() {
1172     /* do nothing for now */
1173 }
1174
1175 void wxPyInputStream::flush() {
1176     /* do nothing for now */
1177 }
1178
1179 bool wxPyInputStream::eof() {
1180     if (m_wxis)
1181         return m_wxis->Eof();
1182     else
1183         return true;
1184 }
1185
1186 wxPyInputStream::~wxPyInputStream() {
1187     if (m_wxis)
1188         delete m_wxis;
1189 }
1190
1191
1192
1193
1194 PyObject* wxPyInputStream::read(int size) {
1195     PyObject* obj = NULL;
1196     wxMemoryBuffer buf;
1197     const int BUFSIZE = 1024;
1198
1199     // check if we have a real wxInputStream to work with
1200     if (!m_wxis) {
1201         bool blocked = wxPyBeginBlockThreads();
1202         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1203         wxPyEndBlockThreads(blocked);
1204         return NULL;
1205     }
1206
1207     if (size < 0) {
1208         // read while bytes are available on the stream
1209         while ( m_wxis->CanRead() ) {
1210             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1211             buf.UngetAppendBuf(m_wxis->LastRead());
1212         }
1213
1214     } else {  // Read only size number of characters
1215         m_wxis->Read(buf.GetWriteBuf(size), size);
1216         buf.UngetWriteBuf(m_wxis->LastRead());
1217     }
1218
1219     // error check
1220     bool blocked = wxPyBeginBlockThreads();
1221     wxStreamError err = m_wxis->GetLastError();
1222     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1223         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1224     }
1225     else {
1226         // We use only strings for the streams, not unicode
1227         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1228     }
1229     wxPyEndBlockThreads(blocked);
1230     return obj;
1231 }
1232
1233
1234 PyObject* wxPyInputStream::readline(int size) {
1235     PyObject* obj = NULL;
1236     wxMemoryBuffer buf;
1237     int i;
1238     char ch;
1239
1240     // check if we have a real wxInputStream to work with
1241     if (!m_wxis) {
1242         bool blocked = wxPyBeginBlockThreads();
1243         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1244         wxPyEndBlockThreads(blocked);
1245         return NULL;
1246     }
1247
1248     // read until \n or byte limit reached
1249     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1250         ch = m_wxis->GetC();
1251         buf.AppendByte(ch);
1252     }
1253
1254     // errorcheck
1255     bool blocked = wxPyBeginBlockThreads();
1256     wxStreamError err = m_wxis->GetLastError();
1257     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1258         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1259     }
1260     else {
1261         // We use only strings for the streams, not unicode
1262         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1263     }
1264     wxPyEndBlockThreads(blocked);
1265     return obj;
1266 }
1267
1268
1269 PyObject* wxPyInputStream::readlines(int sizehint) {
1270     PyObject* pylist;
1271
1272     // check if we have a real wxInputStream to work with
1273     if (!m_wxis) {
1274         bool blocked = wxPyBeginBlockThreads();
1275         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1276         wxPyEndBlockThreads(blocked);
1277         return NULL;
1278     }
1279
1280     // init list
1281     bool blocked = wxPyBeginBlockThreads();
1282     pylist = PyList_New(0);
1283     wxPyEndBlockThreads(blocked);
1284
1285     if (!pylist) {
1286         bool blocked = wxPyBeginBlockThreads();
1287         PyErr_NoMemory();
1288         wxPyEndBlockThreads(blocked);
1289         return NULL;
1290     }
1291
1292     // read sizehint bytes or until EOF
1293     int i;
1294     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1295         PyObject* s = this->readline();
1296         if (s == NULL) {
1297             bool blocked = wxPyBeginBlockThreads();
1298             Py_DECREF(pylist);
1299             wxPyEndBlockThreads(blocked);
1300             return NULL;
1301         }
1302         bool blocked = wxPyBeginBlockThreads();
1303         PyList_Append(pylist, s);
1304         i += PyString_Size(s);
1305         wxPyEndBlockThreads(blocked);
1306     }
1307
1308     // error check
1309     wxStreamError err = m_wxis->GetLastError();
1310     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1311         bool blocked = wxPyBeginBlockThreads();
1312         Py_DECREF(pylist);
1313         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1314         wxPyEndBlockThreads(blocked);
1315         return NULL;
1316     }
1317
1318     return pylist;
1319 }
1320
1321
1322 void wxPyInputStream::seek(int offset, int whence) {
1323     if (m_wxis)
1324         m_wxis->SeekI(offset, wxSeekMode(whence));
1325 }
1326
1327 int wxPyInputStream::tell(){
1328     if (m_wxis)
1329         return m_wxis->TellI();
1330     else return 0;
1331 }
1332
1333
1334
1335
1336 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1337     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1338 {}
1339
1340
1341 wxPyCBInputStream::~wxPyCBInputStream() {
1342     bool blocked=false;
1343     if (m_block) blocked = wxPyBeginBlockThreads();
1344     Py_XDECREF(m_read);
1345     Py_XDECREF(m_seek);
1346     Py_XDECREF(m_tell);
1347     if (m_block) wxPyEndBlockThreads(blocked);
1348 }
1349
1350
1351 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1352     bool blocked=false;
1353     if (block) blocked = wxPyBeginBlockThreads();
1354
1355     PyObject* read = getMethod(py, "read");
1356     PyObject* seek = getMethod(py, "seek");
1357     PyObject* tell = getMethod(py, "tell");
1358
1359     if (!read) {
1360         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1361         Py_XDECREF(read);
1362         Py_XDECREF(seek);
1363         Py_XDECREF(tell);
1364         if (block) wxPyEndBlockThreads(blocked);
1365         return NULL;
1366     }
1367
1368     if (block) wxPyEndBlockThreads(blocked);
1369     return new wxPyCBInputStream(read, seek, tell, block);
1370 }
1371
1372
1373 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1374     return wxPyCBInputStream::create(py, block);
1375 }
1376
1377 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1378     if (!PyObject_HasAttrString(py, name))
1379         return NULL;
1380     PyObject* o = PyObject_GetAttrString(py, name);
1381     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1382         Py_DECREF(o);
1383         return NULL;
1384     }
1385     return o;
1386 }
1387
1388
1389 wxFileOffset wxPyCBInputStream::GetLength() const {
1390     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1391     if (m_seek && m_tell) {
1392         wxFileOffset temp = self->OnSysTell();
1393         wxFileOffset ret = self->OnSysSeek(0, wxFromEnd);
1394         self->OnSysSeek(temp, wxFromStart);
1395         return ret;
1396     }
1397     else
1398         return wxInvalidOffset;
1399 }
1400
1401
1402 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1403     if (bufsize == 0)
1404         return 0;
1405
1406     bool blocked = wxPyBeginBlockThreads();
1407     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1408     PyObject* result = PyEval_CallObject(m_read, arglist);
1409     Py_DECREF(arglist);
1410
1411     size_t o = 0;
1412     if ((result != NULL) && PyString_Check(result)) {
1413         o = PyString_Size(result);
1414         if (o == 0)
1415             m_lasterror = wxSTREAM_EOF;
1416         if (o > bufsize)
1417             o = bufsize;
1418         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1419         Py_DECREF(result);
1420
1421     }
1422     else
1423         m_lasterror = wxSTREAM_READ_ERROR;
1424     wxPyEndBlockThreads(blocked);
1425     return o;
1426 }
1427
1428 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1429     m_lasterror = wxSTREAM_WRITE_ERROR;
1430     return 0;
1431 }
1432
1433
1434 wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) {
1435     bool blocked = wxPyBeginBlockThreads();
1436     PyObject* arglist = PyTuple_New(2);
1437
1438     if (sizeof(wxFileOffset) > sizeof(long))
1439         // wxFileOffset is a 64-bit value...
1440         PyTuple_SET_ITEM(arglist, 0, PyLong_FromLongLong(off));
1441     else
1442         PyTuple_SET_ITEM(arglist, 0, PyInt_FromLong(off));
1443
1444     PyTuple_SET_ITEM(arglist, 1, PyInt_FromLong(mode));
1445
1446
1447     PyObject* result = PyEval_CallObject(m_seek, arglist);
1448     Py_DECREF(arglist);
1449     Py_XDECREF(result);
1450     wxPyEndBlockThreads(blocked);
1451     return OnSysTell();
1452 }
1453
1454
1455 wxFileOffset wxPyCBInputStream::OnSysTell() const {
1456     bool blocked = wxPyBeginBlockThreads();
1457     PyObject* arglist = Py_BuildValue("()");
1458     PyObject* result = PyEval_CallObject(m_tell, arglist);
1459     Py_DECREF(arglist);
1460     wxFileOffset o = 0;
1461     if (result != NULL) {
1462         if (PyLong_Check(result))
1463             o = PyLong_AsLongLong(result);
1464         else
1465             o = PyInt_AsLong(result);
1466         Py_DECREF(result);
1467     };
1468     wxPyEndBlockThreads(blocked);
1469     return o;
1470 }
1471
1472 //----------------------------------------------------------------------
1473
1474 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1475
1476 wxPyCallback::wxPyCallback(PyObject* func) {
1477     m_func = func;
1478     Py_INCREF(m_func);
1479 }
1480
1481 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1482     m_func = other.m_func;
1483     Py_INCREF(m_func);
1484 }
1485
1486 wxPyCallback::~wxPyCallback() {
1487     bool blocked = wxPyBeginBlockThreads();
1488     Py_DECREF(m_func);
1489     wxPyEndBlockThreads(blocked);
1490 }
1491
1492
1493 #define wxPy_PRECALLINIT     "_preCallInit"
1494 #define wxPy_POSTCALLCLEANUP "_postCallCleanup"
1495
1496 // This function is used for all events destined for Python event handlers.
1497 void wxPyCallback::EventThunker(wxEvent& event) {
1498     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1499     PyObject*       func = cb->m_func;
1500     PyObject*       result;
1501     PyObject*       arg;
1502     PyObject*       tuple;
1503     bool            checkSkip = false;
1504
1505     bool blocked = wxPyBeginBlockThreads();
1506     wxString className = event.GetClassInfo()->GetClassName();
1507
1508     // If the event is one of these types then pass the original
1509     // event object instead of the one passed to us.
1510     if ( className == wxT("wxPyEvent") ) {
1511         arg =       ((wxPyEvent*)&event)->GetSelf();
1512         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1513     }
1514     else if ( className == wxT("wxPyCommandEvent") ) {
1515         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1516         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1517     }
1518     else {
1519         arg = wxPyConstructObject((void*)&event, className);
1520     }
1521
1522     if (!arg) {
1523         PyErr_Print();
1524     } else {
1525         // "intern" the pre/post method names to speed up the HasAttr
1526         static PyObject* s_preName  = NULL;
1527         static PyObject* s_postName = NULL;
1528         if (s_preName == NULL) {
1529             s_preName  = PyString_FromString(wxPy_PRECALLINIT);
1530             s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
1531         }
1532
1533         // Check if the event object needs some preinitialization
1534         if (PyObject_HasAttr(arg, s_preName)) {
1535             result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
1536             if ( result ) {
1537                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1538                 PyErr_Clear();       // Just in case...
1539             } else {
1540                 PyErr_Print();
1541             }
1542         }
1543
1544         // Call the event handler, passing the event object
1545         tuple = PyTuple_New(1);
1546         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1547         result = PyEval_CallObject(func, tuple);
1548         if ( result ) {
1549             Py_DECREF(result);   // result is ignored, but we still need to decref it
1550             PyErr_Clear();       // Just in case...
1551         } else {
1552             PyErr_Print();
1553         }
1554
1555         // Check if the event object needs some post cleanup
1556         if (PyObject_HasAttr(arg, s_postName)) {
1557             result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
1558             if ( result ) {
1559                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1560                 PyErr_Clear();       // Just in case...
1561             } else {
1562                 PyErr_Print();
1563             }
1564         }
1565
1566         if ( checkSkip ) {
1567             // if the event object was one of our special types and
1568             // it had been cloned, then we need to extract the Skipped
1569             // value from the original and set it in the clone.
1570             result = PyObject_CallMethod(arg, "GetSkipped", "");
1571             if ( result ) {
1572                 event.Skip(PyInt_AsLong(result));
1573                 Py_DECREF(result);
1574             } else {
1575                 PyErr_Print();
1576             }
1577         }
1578         Py_DECREF(tuple);
1579     }
1580     wxPyEndBlockThreads(blocked);
1581 }
1582
1583
1584 //----------------------------------------------------------------------
1585
1586 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1587       m_lastFound = NULL;
1588       m_self = other.m_self;
1589       m_class = other.m_class;
1590       if (m_self) {
1591           Py_INCREF(m_self);
1592           Py_INCREF(m_class);
1593       }
1594 }
1595
1596
1597 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1598     m_self = self;
1599     m_class = klass;
1600     m_incRef = incref;
1601     if (incref) {
1602         Py_INCREF(m_self);
1603         Py_INCREF(m_class);
1604     }
1605 }
1606
1607
1608 #if PYTHON_API_VERSION >= 1011
1609
1610 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1611 // in which the method was defined.  Starting with 2.2 it returns
1612 // "class that asked for the method" which seems totally bogus to me
1613 // but apprently it fixes some obscure problem waiting to happen in
1614 // Python.  Since the API was not documented Guido and the gang felt
1615 // safe in changing it.  Needless to say that totally screwed up the
1616 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1617 // code to find the class where the method is actually defined...
1618
1619 static
1620 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1621 {
1622     int i, n;
1623
1624     if (PyType_Check(klass)) {      // new style classes
1625         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1626         PyTypeObject* type = (PyTypeObject*)klass;
1627         PyObject *mro, *res, *base, *dict;
1628         /* Look in tp_dict of types in MRO */
1629         mro = type->tp_mro;
1630         assert(PyTuple_Check(mro));
1631         n = PyTuple_GET_SIZE(mro);
1632         for (i = 0; i < n; i++) {
1633             base = PyTuple_GET_ITEM(mro, i);
1634             if (PyClass_Check(base))
1635                 dict = ((PyClassObject *)base)->cl_dict;
1636             else {
1637                 assert(PyType_Check(base));
1638                 dict = ((PyTypeObject *)base)->tp_dict;
1639             }
1640             assert(dict && PyDict_Check(dict));
1641             res = PyDict_GetItem(dict, name);
1642             if (res != NULL)
1643                 return base;
1644         }
1645         return NULL;
1646     }
1647
1648     else if (PyClass_Check(klass)) { // old style classes
1649         // This code is borrowed/adapted from class_lookup in classobject.c
1650         PyClassObject* cp = (PyClassObject*)klass;
1651         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1652         if (value != NULL) {
1653             return (PyObject*)cp;
1654         }
1655         n = PyTuple_Size(cp->cl_bases);
1656         for (i = 0; i < n; i++) {
1657             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1658             PyObject *v = PyFindClassWithAttr(base, name);
1659             if (v != NULL)
1660                 return v;
1661         }
1662         return NULL;
1663     }
1664     return NULL;
1665 }
1666 #endif
1667
1668
1669 static
1670 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1671 {
1672     PyObject* mgc = PyMethod_GET_CLASS(method);
1673
1674 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1675     return mgc;
1676 #else                             // 2.2 and after, the hard way...
1677
1678     PyObject* nameo = PyString_FromString(name);
1679     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1680     Py_DECREF(nameo);
1681     return klass;
1682 #endif
1683 }
1684
1685
1686
1687 bool wxPyCallbackHelper::findCallback(const char* name) const {
1688     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1689     self->m_lastFound = NULL;
1690
1691     // If the object (m_self) has an attibute of the given name...
1692     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1693         PyObject *method, *klass;
1694         method = PyObject_GetAttrString(m_self, (char*)name);
1695
1696         // ...and if that attribute is a method, and if that method's class is
1697         // not from a base class...
1698         if (PyMethod_Check(method) &&
1699             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1700             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1701
1702             // ...then we'll save a pointer to the method so callCallback can call it.
1703             self->m_lastFound = method;
1704         }
1705         else {
1706             Py_DECREF(method);
1707         }
1708     }
1709     return m_lastFound != NULL;
1710 }
1711
1712
1713 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1714     PyObject*   result;
1715     int         retval = false;
1716
1717     result = callCallbackObj(argTuple);
1718     if (result) {                       // Assumes an integer return type...
1719         retval = PyInt_AsLong(result);
1720         Py_DECREF(result);
1721         PyErr_Clear();                  // forget about it if it's not...
1722     }
1723     return retval;
1724 }
1725
1726 // Invoke the Python callable object, returning the raw PyObject return
1727 // value.  Caller should DECREF the return value and also manage the GIL.
1728 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1729     PyObject* result;
1730
1731     // Save a copy of the pointer in case the callback generates another
1732     // callback.  In that case m_lastFound will have a different value when
1733     // it gets back here...
1734     PyObject* method = m_lastFound;
1735
1736     result = PyEval_CallObject(method, argTuple);
1737     Py_DECREF(argTuple);
1738     Py_DECREF(method);
1739     if (!result) {
1740         PyErr_Print();
1741     }
1742     return result;
1743 }
1744
1745
1746 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1747     cbh.setSelf(self, klass, incref);
1748 }
1749
1750 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1751     return cbh.findCallback(name);
1752 }
1753
1754 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1755     return cbh.callCallback(argTuple);
1756 }
1757
1758 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1759     return cbh.callCallbackObj(argTuple);
1760 }
1761
1762
1763 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1764     if (cbh->m_incRef) {
1765         bool blocked = wxPyBeginBlockThreads();
1766         Py_XDECREF(cbh->m_self);
1767         Py_XDECREF(cbh->m_class);
1768         wxPyEndBlockThreads(blocked);
1769     }
1770 }
1771
1772 //---------------------------------------------------------------------------
1773 //---------------------------------------------------------------------------
1774 // These event classes can be derived from in Python and passed through the event
1775 // system without losing anything.  They do this by keeping a reference to
1776 // themselves and some special case handling in wxPyCallback::EventThunker.
1777
1778
1779 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1780     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1781     //Py_INCREF(m_self);        //      circular loops...
1782     m_cloned = false;
1783 }
1784
1785 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1786     bool blocked = wxPyBeginBlockThreads();
1787     if (m_cloned)
1788         Py_DECREF(m_self);
1789     wxPyEndBlockThreads(blocked);
1790 }
1791
1792 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1793     bool blocked = wxPyBeginBlockThreads();
1794     if (m_cloned)
1795         Py_DECREF(m_self);
1796     m_self = self;
1797     if (clone) {
1798         Py_INCREF(m_self);
1799         m_cloned = true;
1800     }
1801     wxPyEndBlockThreads(blocked);
1802 }
1803
1804 PyObject* wxPyEvtSelfRef::GetSelf() const {
1805     Py_INCREF(m_self);
1806     return m_self;
1807 }
1808
1809
1810 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1811 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1812
1813
1814 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1815     : wxEvent(winid, commandType) {
1816 }
1817
1818
1819 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1820     : wxEvent(evt)
1821 {
1822     SetSelf(evt.m_self, true);
1823 }
1824
1825
1826 wxPyEvent::~wxPyEvent() {
1827 }
1828
1829
1830 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1831     : wxCommandEvent(commandType, id) {
1832 }
1833
1834
1835 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1836     : wxCommandEvent(evt)
1837 {
1838     SetSelf(evt.m_self, true);
1839 }
1840
1841
1842 wxPyCommandEvent::~wxPyCommandEvent() {
1843 }
1844
1845
1846
1847
1848
1849 //---------------------------------------------------------------------------
1850 //---------------------------------------------------------------------------
1851 // Convert a wxList to a Python List, only works for lists of wxObjects
1852
1853 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1854     wxList*     list = (wxList*)listbase;  // this is probably bad...
1855     PyObject*   pyList;
1856     PyObject*   pyObj;
1857     wxObject*   wxObj;
1858     wxNode*     node = list->GetFirst();
1859
1860     bool blocked = wxPyBeginBlockThreads();
1861     pyList = PyList_New(0);
1862     while (node) {
1863         wxObj = node->GetData();
1864         pyObj = wxPyMake_wxObject(wxObj,false);
1865         PyList_Append(pyList, pyObj);
1866         node = node->GetNext();
1867     }
1868     wxPyEndBlockThreads(blocked);
1869     return pyList;
1870 }
1871
1872 //----------------------------------------------------------------------
1873
1874 long wxPyGetWinHandle(wxWindow* win) {
1875
1876 #ifdef __WXMSW__
1877     return (long)win->GetHandle();
1878 #endif
1879
1880 #if defined(__WXGTK__) || defined(__WXX11)
1881     return (long)GetXWindow(win);
1882 #endif
1883
1884 #ifdef __WXMAC__
1885     //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef());
1886     return (long)win->GetHandle();
1887 #endif
1888
1889     return 0;
1890 }
1891
1892 //----------------------------------------------------------------------
1893 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1894 // included in every file over and over again...
1895
1896 wxString* wxString_in_helper(PyObject* source) {
1897     wxString* target = NULL;
1898
1899     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1900         PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
1901         return NULL;
1902     }
1903 #if wxUSE_UNICODE
1904     PyObject* uni = source;
1905     if (PyString_Check(source)) {
1906         uni = PyUnicode_FromObject(source);
1907         if (PyErr_Occurred()) return NULL;
1908     }
1909     target = new wxString();
1910     size_t len = PyUnicode_GET_SIZE(uni);
1911     if (len) {
1912         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len);
1913         target->UngetWriteBuf(len);
1914     }
1915
1916     if (PyString_Check(source))
1917         Py_DECREF(uni);
1918 #else
1919     // Convert to a string object if it isn't already, then to wxString
1920     PyObject* str = source;
1921     if (!PyString_Check(source)) {
1922         str = PyObject_Str(source);
1923         if (PyErr_Occurred()) return NULL;
1924     }
1925     char* tmpPtr; int tmpSize;
1926     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1927     target = new wxString(tmpPtr, tmpSize);
1928
1929     if (!PyString_Check(source))
1930         Py_DECREF(str);
1931 #endif // wxUSE_UNICODE
1932
1933     return target;
1934 }
1935
1936
1937 // Similar to above except doesn't use "new" and doesn't set an exception
1938 wxString Py2wxString(PyObject* source)
1939 {
1940     wxString target;
1941
1942 #if wxUSE_UNICODE
1943     // Convert to a unicode object, if not already, then to a wxString
1944     PyObject* uni = source;
1945     if (!PyUnicode_Check(source)) {
1946         uni = PyUnicode_FromObject(source);
1947         if (PyErr_Occurred()) return wxEmptyString;  // TODO:  should we PyErr_Clear?
1948     }
1949     size_t len = PyUnicode_GET_SIZE(uni);
1950     if (len) {
1951         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len);
1952         target.UngetWriteBuf();
1953     }
1954
1955     if (!PyUnicode_Check(source))
1956         Py_DECREF(uni);
1957 #else
1958     // Convert to a string object if it isn't already, then to wxString
1959     PyObject* str = source;
1960     if (!PyString_Check(source)) {
1961         str = PyObject_Str(source);
1962         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
1963     }
1964     char* tmpPtr; int tmpSize;
1965     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1966     target = wxString(tmpPtr, tmpSize);
1967
1968     if (!PyString_Check(source))
1969         Py_DECREF(str);
1970 #endif // wxUSE_UNICODE
1971
1972     return target;
1973 }
1974
1975
1976 // Make either a Python String or Unicode object, depending on build mode
1977 PyObject* wx2PyString(const wxString& src)
1978 {
1979     PyObject* str;
1980 #if wxUSE_UNICODE
1981     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1982 #else
1983     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1984 #endif
1985     return str;
1986 }
1987
1988
1989 //----------------------------------------------------------------------
1990
1991
1992 byte* byte_LIST_helper(PyObject* source) {
1993     if (!PyList_Check(source)) {
1994         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1995         return NULL;
1996     }
1997     int count = PyList_Size(source);
1998     byte* temp = new byte[count];
1999     if (! temp) {
2000         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2001         return NULL;
2002     }
2003     for (int x=0; x<count; x++) {
2004         PyObject* o = PyList_GetItem(source, x);
2005         if (! PyInt_Check(o)) {
2006             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2007             return NULL;
2008         }
2009         temp[x] = (byte)PyInt_AsLong(o);
2010     }
2011     return temp;
2012 }
2013
2014
2015 int* int_LIST_helper(PyObject* source) {
2016     if (!PyList_Check(source)) {
2017         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2018         return NULL;
2019     }
2020     int count = PyList_Size(source);
2021     int* temp = new int[count];
2022     if (! temp) {
2023         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2024         return NULL;
2025     }
2026     for (int x=0; x<count; x++) {
2027         PyObject* o = PyList_GetItem(source, x);
2028         if (! PyInt_Check(o)) {
2029             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2030             return NULL;
2031         }
2032         temp[x] = PyInt_AsLong(o);
2033     }
2034     return temp;
2035 }
2036
2037
2038 long* long_LIST_helper(PyObject* source) {
2039     if (!PyList_Check(source)) {
2040         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2041         return NULL;
2042     }
2043     int count = PyList_Size(source);
2044     long* temp = new long[count];
2045     if (! temp) {
2046         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2047         return NULL;
2048     }
2049     for (int x=0; x<count; x++) {
2050         PyObject* o = PyList_GetItem(source, x);
2051         if (! PyInt_Check(o)) {
2052             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2053             return NULL;
2054         }
2055         temp[x] = PyInt_AsLong(o);
2056     }
2057     return temp;
2058 }
2059
2060
2061 char** string_LIST_helper(PyObject* source) {
2062     if (!PyList_Check(source)) {
2063         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2064         return NULL;
2065     }
2066     int count = PyList_Size(source);
2067     char** temp = new char*[count];
2068     if (! temp) {
2069         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2070         return NULL;
2071     }
2072     for (int x=0; x<count; x++) {
2073         PyObject* o = PyList_GetItem(source, x);
2074         if (! PyString_Check(o)) {
2075             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2076             return NULL;
2077         }
2078         temp[x] = PyString_AsString(o);
2079     }
2080     return temp;
2081 }
2082
2083 //--------------------------------
2084 // Part of patch from Tim Hochberg
2085 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
2086     if (PyInt_Check(o1) && PyInt_Check(o2)) {
2087         point->x = PyInt_AS_LONG(o1);
2088         point->y = PyInt_AS_LONG(o2);
2089         return true;
2090     }
2091     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
2092         point->x = (int)PyFloat_AS_DOUBLE(o1);
2093         point->y = (int)PyFloat_AS_DOUBLE(o2);
2094         return true;
2095     }
2096     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
2097         // Disallow instances because they can cause havok
2098         return false;
2099     }
2100     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
2101         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
2102         point->x = PyInt_AsLong(o1);
2103         point->y = PyInt_AsLong(o2);
2104         return true;
2105     }
2106     return false;
2107 }
2108
2109
2110 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
2111     // Putting all of the declarations here allows
2112     // us to put the error handling all in one place.
2113     int x;
2114     wxPoint* temp;
2115     PyObject *o, *o1, *o2;
2116     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2117
2118     if (!PySequence_Check(source)) {
2119         goto error0;
2120     }
2121
2122     // The length of the sequence is returned in count.
2123     *count = PySequence_Length(source);
2124     if (*count < 0) {
2125         goto error0;
2126     }
2127
2128     temp = new wxPoint[*count];
2129     if (!temp) {
2130         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2131         return NULL;
2132     }
2133     for (x=0; x<*count; x++) {
2134         // Get an item: try fast way first.
2135         if (isFast) {
2136             o = PySequence_Fast_GET_ITEM(source, x);
2137         }
2138         else {
2139             o = PySequence_GetItem(source, x);
2140             if (o == NULL) {
2141                 goto error1;
2142             }
2143         }
2144
2145         // Convert o to wxPoint.
2146         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
2147             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
2148             o1 = PySequence_Fast_GET_ITEM(o, 0);
2149             o2 = PySequence_Fast_GET_ITEM(o, 1);
2150             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2151                 goto error2;
2152             }
2153         }
2154         else if (wxPySwigInstance_Check(o)) {
2155             wxPoint* pt;
2156             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
2157                 goto error2;
2158             }
2159             temp[x] = *pt;
2160         }
2161         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
2162             o1 = PySequence_GetItem(o, 0);
2163             o2 = PySequence_GetItem(o, 1);
2164             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2165                 goto error3;
2166             }
2167             Py_DECREF(o1);
2168             Py_DECREF(o2);
2169         }
2170         else {
2171             goto error2;
2172         }
2173         // Clean up.
2174         if (!isFast)
2175             Py_DECREF(o);
2176     }
2177     return temp;
2178
2179 error3:
2180     Py_DECREF(o1);
2181     Py_DECREF(o2);
2182 error2:
2183     if (!isFast)
2184         Py_DECREF(o);
2185 error1:
2186     delete [] temp;
2187 error0:
2188     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2189     return NULL;
2190 }
2191 // end of patch
2192 //------------------------------
2193
2194
2195 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2196     if (!PyList_Check(source)) {
2197         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2198         return NULL;
2199     }
2200     int count = PyList_Size(source);
2201     wxBitmap** temp = new wxBitmap*[count];
2202     if (! temp) {
2203         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2204         return NULL;
2205     }
2206     for (int x=0; x<count; x++) {
2207         PyObject* o = PyList_GetItem(source, x);
2208         if (wxPySwigInstance_Check(o)) {
2209             wxBitmap*    pt;
2210             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2211                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2212                 return NULL;
2213             }
2214             temp[x] = pt;
2215         }
2216         else {
2217             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2218             return NULL;
2219         }
2220     }
2221     return temp;
2222 }
2223
2224
2225
2226 wxString* wxString_LIST_helper(PyObject* source) {
2227     if (!PyList_Check(source)) {
2228         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2229         return NULL;
2230     }
2231     int count = PyList_Size(source);
2232     wxString* temp = new wxString[count];
2233     if (! temp) {
2234         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2235         return NULL;
2236     }
2237     for (int x=0; x<count; x++) {
2238         PyObject* o = PyList_GetItem(source, x);
2239 #if PYTHON_API_VERSION >= 1009
2240         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2241             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2242             return NULL;
2243         }
2244 #else
2245         if (! PyString_Check(o)) {
2246             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2247             return NULL;
2248         }
2249 #endif
2250
2251         wxString* pStr = wxString_in_helper(o);
2252         temp[x] = *pStr;
2253         delete pStr;
2254     }
2255     return temp;
2256 }
2257
2258
2259 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2260     if (!PyList_Check(source)) {
2261         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2262         return NULL;
2263     }
2264     int count                = PyList_Size(source);
2265     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2266     if (! temp) {
2267         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2268         return NULL;
2269     }
2270     for (int x=0; x<count; x++) {
2271         PyObject* o = PyList_GetItem(source, x);
2272         if (wxPySwigInstance_Check(o)) {
2273             wxAcceleratorEntry* ae;
2274             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2275                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2276                 return NULL;
2277             }
2278             temp[x] = *ae;
2279         }
2280         else if (PyTuple_Check(o)) {
2281             PyObject* o1 = PyTuple_GetItem(o, 0);
2282             PyObject* o2 = PyTuple_GetItem(o, 1);
2283             PyObject* o3 = PyTuple_GetItem(o, 2);
2284             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2285         }
2286         else {
2287             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2288             return NULL;
2289         }
2290     }
2291     return temp;
2292 }
2293
2294
2295 wxPen** wxPen_LIST_helper(PyObject* source) {
2296     if (!PyList_Check(source)) {
2297         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2298         return NULL;
2299     }
2300     int count = PyList_Size(source);
2301     wxPen** temp = new wxPen*[count];
2302     if (!temp) {
2303         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2304         return NULL;
2305     }
2306     for (int x=0; x<count; x++) {
2307         PyObject* o = PyList_GetItem(source, x);
2308         if (wxPySwigInstance_Check(o)) {
2309             wxPen*  pt;
2310             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2311                 delete temp;
2312                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2313                 return NULL;
2314             }
2315             temp[x] = pt;
2316         }
2317         else {
2318             delete temp;
2319             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2320             return NULL;
2321         }
2322     }
2323     return temp;
2324 }
2325
2326
2327 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2328     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2329     PyObject *o1, *o2;
2330
2331     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2332         return false;
2333
2334     if (isFast) {
2335         o1 = PySequence_Fast_GET_ITEM(source, 0);
2336         o2 = PySequence_Fast_GET_ITEM(source, 1);
2337     }
2338     else {
2339         o1 = PySequence_GetItem(source, 0);
2340         o2 = PySequence_GetItem(source, 1);
2341     }
2342
2343     *i1 = PyInt_AsLong(o1);
2344     *i2 = PyInt_AsLong(o2);
2345
2346     if (! isFast) {
2347         Py_DECREF(o1);
2348         Py_DECREF(o2);
2349     }
2350     return true;
2351 }
2352
2353
2354 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2355     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2356     PyObject *o1, *o2, *o3, *o4;
2357
2358     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2359         return false;
2360
2361     if (isFast) {
2362         o1 = PySequence_Fast_GET_ITEM(source, 0);
2363         o2 = PySequence_Fast_GET_ITEM(source, 1);
2364         o3 = PySequence_Fast_GET_ITEM(source, 2);
2365         o4 = PySequence_Fast_GET_ITEM(source, 3);
2366     }
2367     else {
2368         o1 = PySequence_GetItem(source, 0);
2369         o2 = PySequence_GetItem(source, 1);
2370         o3 = PySequence_GetItem(source, 2);
2371         o4 = PySequence_GetItem(source, 3);
2372     }
2373
2374     *i1 = PyInt_AsLong(o1);
2375     *i2 = PyInt_AsLong(o2);
2376     *i3 = PyInt_AsLong(o3);
2377     *i4 = PyInt_AsLong(o4);
2378
2379     if (! isFast) {
2380         Py_DECREF(o1);
2381         Py_DECREF(o2);
2382         Py_DECREF(o3);
2383         Py_DECREF(o4);
2384     }
2385     return true;
2386 }
2387
2388
2389 //----------------------------------------------------------------------
2390
2391 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2392 {
2393     void* ptr;
2394
2395     if (wxPySwigInstance_Check(source) &&
2396         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2397         return true;
2398
2399     PyErr_Clear();
2400     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2401         return true;
2402
2403     return false;
2404 }
2405
2406 bool wxSize_helper(PyObject* source, wxSize** obj)
2407 {
2408     if (source == Py_None) {
2409         **obj = wxSize(-1,-1);
2410         return true;
2411     }
2412     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2413 }
2414
2415
2416 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2417 {
2418     if (source == Py_None) {
2419         **obj = wxPoint(-1,-1);
2420         return true;
2421     }
2422     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2423 }
2424
2425
2426
2427 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2428
2429     if (source == Py_None) {
2430         **obj = wxRealPoint(-1,-1);
2431         return true;
2432     }
2433
2434     // If source is an object instance then it may already be the right type
2435     if (wxPySwigInstance_Check(source)) {
2436         wxRealPoint* ptr;
2437         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2438             goto error;
2439         *obj = ptr;
2440         return true;
2441     }
2442     // otherwise a 2-tuple of floats is expected
2443     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2444         PyObject* o1 = PySequence_GetItem(source, 0);
2445         PyObject* o2 = PySequence_GetItem(source, 1);
2446         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2447             Py_DECREF(o1);
2448             Py_DECREF(o2);
2449             goto error;
2450         }
2451         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2452         Py_DECREF(o1);
2453         Py_DECREF(o2);
2454         return true;
2455     }
2456
2457  error:
2458     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2459     return false;
2460 }
2461
2462
2463
2464 bool wxRect_helper(PyObject* source, wxRect** obj) {
2465
2466     if (source == Py_None) {
2467         **obj = wxRect(-1,-1,-1,-1);
2468         return true;
2469     }
2470
2471     // If source is an object instance then it may already be the right type
2472     if (wxPySwigInstance_Check(source)) {
2473         wxRect* ptr;
2474         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2475             goto error;
2476         *obj = ptr;
2477         return true;
2478     }
2479     // otherwise a 4-tuple of integers is expected
2480     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2481         PyObject* o1 = PySequence_GetItem(source, 0);
2482         PyObject* o2 = PySequence_GetItem(source, 1);
2483         PyObject* o3 = PySequence_GetItem(source, 2);
2484         PyObject* o4 = PySequence_GetItem(source, 3);
2485         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2486             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2487             Py_DECREF(o1);
2488             Py_DECREF(o2);
2489             Py_DECREF(o3);
2490             Py_DECREF(o4);
2491             goto error;
2492         }
2493         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2494                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2495         Py_DECREF(o1);
2496         Py_DECREF(o2);
2497         Py_DECREF(o3);
2498         Py_DECREF(o4);
2499         return true;
2500     }
2501
2502  error:
2503     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2504     return false;
2505 }
2506
2507
2508
2509 bool wxColour_helper(PyObject* source, wxColour** obj) {
2510
2511     if (source == Py_None) {
2512         **obj = wxNullColour;
2513         return true;
2514     }
2515
2516     // If source is an object instance then it may already be the right type
2517     if (wxPySwigInstance_Check(source)) {
2518         wxColour* ptr;
2519         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2520             goto error;
2521         *obj = ptr;
2522         return true;
2523     }
2524     // otherwise check for a string
2525     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2526         wxString spec = Py2wxString(source);
2527         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2528             long red, green, blue;
2529             red = green = blue = 0;
2530             spec.Mid(1,2).ToLong(&red,   16);
2531             spec.Mid(3,2).ToLong(&green, 16);
2532             spec.Mid(5,2).ToLong(&blue,  16);
2533
2534             **obj = wxColour(red, green, blue);
2535             return true;
2536         }
2537         else {                                       // it's a colour name
2538             **obj = wxColour(spec);
2539             return true;
2540         }
2541     }
2542     // last chance: 3-tuple of integers is expected
2543     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2544         PyObject* o1 = PySequence_GetItem(source, 0);
2545         PyObject* o2 = PySequence_GetItem(source, 1);
2546         PyObject* o3 = PySequence_GetItem(source, 2);
2547         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2548             Py_DECREF(o1);
2549             Py_DECREF(o2);
2550             Py_DECREF(o3);
2551             goto error;
2552         }
2553         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2554         Py_DECREF(o1);
2555         Py_DECREF(o2);
2556         Py_DECREF(o3);
2557         return true;
2558     }
2559
2560  error:
2561     PyErr_SetString(PyExc_TypeError,
2562                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2563     return false;
2564 }
2565
2566
2567 bool wxColour_typecheck(PyObject* source) {
2568
2569     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2570         return true;
2571
2572     if (PyString_Check(source) || PyUnicode_Check(source))
2573         return true;
2574
2575     return false;
2576 }
2577
2578
2579
2580 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2581
2582     if (source == Py_None) {
2583         **obj = wxPoint2D(-1,-1);
2584         return true;
2585     }
2586
2587     // If source is an object instance then it may already be the right type
2588     if (wxPySwigInstance_Check(source)) {
2589         wxPoint2D* ptr;
2590         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2591             goto error;
2592         *obj = ptr;
2593         return true;
2594     }
2595     // otherwise a length-2 sequence of floats is expected
2596     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2597         PyObject* o1 = PySequence_GetItem(source, 0);
2598         PyObject* o2 = PySequence_GetItem(source, 1);
2599         // This should really check for floats, not numbers -- but that would break code.
2600         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2601             Py_DECREF(o1);
2602             Py_DECREF(o2);
2603             goto error;
2604         }
2605         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2606         Py_DECREF(o1);
2607         Py_DECREF(o2);
2608         return true;
2609     }
2610  error:
2611     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2612     return false;
2613 }
2614
2615
2616 //----------------------------------------------------------------------
2617
2618 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2619
2620     PyObject* list = PyList_New(0);
2621     for (size_t i=0; i < arr.GetCount(); i++) {
2622 #if wxUSE_UNICODE
2623         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2624 #else
2625         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2626 #endif
2627         PyList_Append(list, str);
2628         Py_DECREF(str);
2629     }
2630     return list;
2631 }
2632
2633
2634 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2635
2636     PyObject* list = PyList_New(0);
2637     for (size_t i=0; i < arr.GetCount(); i++) {
2638         PyObject* number = PyInt_FromLong(arr[i]);
2639         PyList_Append(list, number);
2640         Py_DECREF(number);
2641     }
2642     return list;
2643 }
2644
2645
2646 //----------------------------------------------------------------------
2647 //----------------------------------------------------------------------
2648
2649
2650
2651