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 <= 1007 && 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, but
 425         // Python needs to have LC_NUMERIC set to "C" in order for the floating
 426         // point conversions and such to work right.
 427 #if defined(__WXGTK__) && PYTHON_API_VERSION <= 1012
 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     /* do nothing */
1188 }
1189
1190
1191
1192
1193 PyObject* wxPyInputStream::read(int size) {
1194     PyObject* obj = NULL;
1195     wxMemoryBuffer buf;
1196     const int BUFSIZE = 1024;
1197
1198     // check if we have a real wxInputStream to work with
1199     if (!m_wxis) {
1200         bool blocked = wxPyBeginBlockThreads();
1201         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1202         wxPyEndBlockThreads(blocked);
1203         return NULL;
1204     }
1205
1206     if (size < 0) {
1207         // read while bytes are available on the stream
1208         while ( m_wxis->CanRead() ) {
1209             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1210             buf.UngetAppendBuf(m_wxis->LastRead());
1211         }
1212
1213     } else {  // Read only size number of characters
1214         m_wxis->Read(buf.GetWriteBuf(size), size);
1215         buf.UngetWriteBuf(m_wxis->LastRead());
1216     }
1217
1218     // error check
1219     bool blocked = wxPyBeginBlockThreads();
1220     wxStreamError err = m_wxis->GetLastError();
1221     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1222         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1223     }
1224     else {
1225         // We use only strings for the streams, not unicode
1226         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1227     }
1228     wxPyEndBlockThreads(blocked);
1229     return obj;
1230 }
1231
1232
1233 PyObject* wxPyInputStream::readline(int size) {
1234     PyObject* obj = NULL;
1235     wxMemoryBuffer buf;
1236     int i;
1237     char ch;
1238
1239     // check if we have a real wxInputStream to work with
1240     if (!m_wxis) {
1241         bool blocked = wxPyBeginBlockThreads();
1242         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1243         wxPyEndBlockThreads(blocked);
1244         return NULL;
1245     }
1246
1247     // read until \n or byte limit reached
1248     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1249         ch = m_wxis->GetC();
1250         buf.AppendByte(ch);
1251     }
1252
1253     // errorcheck
1254     bool blocked = wxPyBeginBlockThreads();
1255     wxStreamError err = m_wxis->GetLastError();
1256     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1257         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1258     }
1259     else {
1260         // We use only strings for the streams, not unicode
1261         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1262     }
1263     wxPyEndBlockThreads(blocked);
1264     return obj;
1265 }
1266
1267
1268 PyObject* wxPyInputStream::readlines(int sizehint) {
1269     PyObject* pylist;
1270
1271     // check if we have a real wxInputStream to work with
1272     if (!m_wxis) {
1273         bool blocked = wxPyBeginBlockThreads();
1274         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1275         wxPyEndBlockThreads(blocked);
1276         return NULL;
1277     }
1278
1279     // init list
1280     bool blocked = wxPyBeginBlockThreads();
1281     pylist = PyList_New(0);
1282     wxPyEndBlockThreads(blocked);
1283
1284     if (!pylist) {
1285         bool blocked = wxPyBeginBlockThreads();
1286         PyErr_NoMemory();
1287         wxPyEndBlockThreads(blocked);
1288         return NULL;
1289     }
1290
1291     // read sizehint bytes or until EOF
1292     int i;
1293     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1294         PyObject* s = this->readline();
1295         if (s == NULL) {
1296             bool blocked = wxPyBeginBlockThreads();
1297             Py_DECREF(pylist);
1298             wxPyEndBlockThreads(blocked);
1299             return NULL;
1300         }
1301         bool blocked = wxPyBeginBlockThreads();
1302         PyList_Append(pylist, s);
1303         i += PyString_Size(s);
1304         wxPyEndBlockThreads(blocked);
1305     }
1306
1307     // error check
1308     wxStreamError err = m_wxis->GetLastError();
1309     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1310         bool blocked = wxPyBeginBlockThreads();
1311         Py_DECREF(pylist);
1312         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1313         wxPyEndBlockThreads(blocked);
1314         return NULL;
1315     }
1316
1317     return pylist;
1318 }
1319
1320
1321 void wxPyInputStream::seek(int offset, int whence) {
1322     if (m_wxis)
1323         m_wxis->SeekI(offset, wxSeekMode(whence));
1324 }
1325
1326 int wxPyInputStream::tell(){
1327     if (m_wxis)
1328         return m_wxis->TellI();
1329     else return 0;
1330 }
1331
1332
1333
1334
1335 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1336     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1337 {}
1338
1339
1340 wxPyCBInputStream::~wxPyCBInputStream() {
1341     bool blocked=false;
1342     if (m_block) blocked = wxPyBeginBlockThreads();
1343     Py_XDECREF(m_read);
1344     Py_XDECREF(m_seek);
1345     Py_XDECREF(m_tell);
1346     if (m_block) wxPyEndBlockThreads(blocked);
1347 }
1348
1349
1350 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1351     bool blocked=false;
1352     if (block) blocked = wxPyBeginBlockThreads();
1353
1354     PyObject* read = getMethod(py, "read");
1355     PyObject* seek = getMethod(py, "seek");
1356     PyObject* tell = getMethod(py, "tell");
1357
1358     if (!read) {
1359         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1360         Py_XDECREF(read);
1361         Py_XDECREF(seek);
1362         Py_XDECREF(tell);
1363         if (block) wxPyEndBlockThreads(blocked);
1364         return NULL;
1365     }
1366
1367     if (block) wxPyEndBlockThreads(blocked);
1368     return new wxPyCBInputStream(read, seek, tell, block);
1369 }
1370
1371
1372 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1373     return wxPyCBInputStream::create(py, block);
1374 }
1375
1376 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1377     if (!PyObject_HasAttrString(py, name))
1378         return NULL;
1379     PyObject* o = PyObject_GetAttrString(py, name);
1380     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1381         Py_DECREF(o);
1382         return NULL;
1383     }
1384     return o;
1385 }
1386
1387
1388 wxFileOffset wxPyCBInputStream::GetLength() const {
1389     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1390     if (m_seek && m_tell) {
1391         wxFileOffset temp = self->OnSysTell();
1392         wxFileOffset ret = self->OnSysSeek(0, wxFromEnd);
1393         self->OnSysSeek(temp, wxFromStart);
1394         return ret;
1395     }
1396     else
1397         return wxInvalidOffset;
1398 }
1399
1400
1401 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1402     if (bufsize == 0)
1403         return 0;
1404
1405     bool blocked = wxPyBeginBlockThreads();
1406     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1407     PyObject* result = PyEval_CallObject(m_read, arglist);
1408     Py_DECREF(arglist);
1409
1410     size_t o = 0;
1411     if ((result != NULL) && PyString_Check(result)) {
1412         o = PyString_Size(result);
1413         if (o == 0)
1414             m_lasterror = wxSTREAM_EOF;
1415         if (o > bufsize)
1416             o = bufsize;
1417         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1418         Py_DECREF(result);
1419
1420     }
1421     else
1422         m_lasterror = wxSTREAM_READ_ERROR;
1423     wxPyEndBlockThreads(blocked);
1424     return o;
1425 }
1426
1427 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1428     m_lasterror = wxSTREAM_WRITE_ERROR;
1429     return 0;
1430 }
1431
1432 wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) {
1433     bool blocked = wxPyBeginBlockThreads();
1434 #if defined( __WINCE__) || defined(_LARGE_FILES) || wxHAS_HUGE_FILES
1435     // wxFileOffset is a 64-bit value...
1436     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
1437 #else
1438     PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1439 #endif
1440     PyObject* result = PyEval_CallObject(m_seek, arglist);
1441     Py_DECREF(arglist);
1442     Py_XDECREF(result);
1443     wxPyEndBlockThreads(blocked);
1444     return OnSysTell();
1445 }
1446
1447
1448 wxFileOffset wxPyCBInputStream::OnSysTell() const {
1449     bool blocked = wxPyBeginBlockThreads();
1450     PyObject* arglist = Py_BuildValue("()");
1451     PyObject* result = PyEval_CallObject(m_tell, arglist);
1452     Py_DECREF(arglist);
1453     wxFileOffset o = 0;
1454     if (result != NULL) {
1455 #if defined( __WINCE__) || defined(_LARGE_FILES) || wxHAS_HUGE_FILES
1456         if (PyLong_Check(result))
1457             o = PyLong_AsLongLong(result);
1458         else
1459 #endif
1460             o = PyInt_AsLong(result);
1461         Py_DECREF(result);
1462     };
1463     wxPyEndBlockThreads(blocked);
1464     return o;
1465 }
1466
1467 //----------------------------------------------------------------------
1468
1469 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1470
1471 wxPyCallback::wxPyCallback(PyObject* func) {
1472     m_func = func;
1473     Py_INCREF(m_func);
1474 }
1475
1476 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1477     m_func = other.m_func;
1478     Py_INCREF(m_func);
1479 }
1480
1481 wxPyCallback::~wxPyCallback() {
1482     bool blocked = wxPyBeginBlockThreads();
1483     Py_DECREF(m_func);
1484     wxPyEndBlockThreads(blocked);
1485 }
1486
1487
1488 #define wxPy_PRECALLINIT     "_preCallInit"
1489 #define wxPy_POSTCALLCLEANUP "_postCallCleanup"
1490
1491 // This function is used for all events destined for Python event handlers.
1492 void wxPyCallback::EventThunker(wxEvent& event) {
1493     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1494     PyObject*       func = cb->m_func;
1495     PyObject*       result;
1496     PyObject*       arg;
1497     PyObject*       tuple;
1498     bool            checkSkip = false;
1499
1500     bool blocked = wxPyBeginBlockThreads();
1501     wxString className = event.GetClassInfo()->GetClassName();
1502
1503     // If the event is one of these types then pass the original
1504     // event object instead of the one passed to us.
1505     if ( className == wxT("wxPyEvent") ) {
1506         arg =       ((wxPyEvent*)&event)->GetSelf();
1507         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1508     }
1509     else if ( className == wxT("wxPyCommandEvent") ) {
1510         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1511         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1512     }
1513     else {
1514         arg = wxPyConstructObject((void*)&event, className);
1515     }
1516
1517     if (!arg) {
1518         PyErr_Print();
1519     } else {
1520         // "intern" the pre/post method names to speed up the HasAttr
1521         static PyObject* s_preName  = NULL;
1522         static PyObject* s_postName = NULL;
1523         if (s_preName == NULL) {
1524             s_preName  = PyString_FromString(wxPy_PRECALLINIT);
1525             s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
1526         }
1527
1528         // Check if the event object needs some preinitialization
1529         if (PyObject_HasAttr(arg, s_preName)) {
1530             result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
1531             if ( result ) {
1532                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1533                 PyErr_Clear();       // Just in case...
1534             } else {
1535                 PyErr_Print();
1536             }
1537         }
1538
1539         // Call the event handler, passing the event object
1540         tuple = PyTuple_New(1);
1541         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1542         result = PyEval_CallObject(func, tuple);
1543         if ( result ) {
1544             Py_DECREF(result);   // result is ignored, but we still need to decref it
1545             PyErr_Clear();       // Just in case...
1546         } else {
1547             PyErr_Print();
1548         }
1549
1550         // Check if the event object needs some post cleanup
1551         if (PyObject_HasAttr(arg, s_postName)) {
1552             result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
1553             if ( result ) {
1554                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1555                 PyErr_Clear();       // Just in case...
1556             } else {
1557                 PyErr_Print();
1558             }
1559         }
1560
1561         if ( checkSkip ) {
1562             // if the event object was one of our special types and
1563             // it had been cloned, then we need to extract the Skipped
1564             // value from the original and set it in the clone.
1565             result = PyObject_CallMethod(arg, "GetSkipped", "");
1566             if ( result ) {
1567                 event.Skip(PyInt_AsLong(result));
1568                 Py_DECREF(result);
1569             } else {
1570                 PyErr_Print();
1571             }
1572         }
1573         Py_DECREF(tuple);
1574     }
1575     wxPyEndBlockThreads(blocked);
1576 }
1577
1578
1579 //----------------------------------------------------------------------
1580
1581 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1582       m_lastFound = NULL;
1583       m_self = other.m_self;
1584       m_class = other.m_class;
1585       if (m_self) {
1586           Py_INCREF(m_self);
1587           Py_INCREF(m_class);
1588       }
1589 }
1590
1591
1592 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1593     m_self = self;
1594     m_class = klass;
1595     m_incRef = incref;
1596     if (incref) {
1597         Py_INCREF(m_self);
1598         Py_INCREF(m_class);
1599     }
1600 }
1601
1602
1603 #if PYTHON_API_VERSION >= 1011
1604
1605 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1606 // in which the method was defined.  Starting with 2.2 it returns
1607 // "class that asked for the method" which seems totally bogus to me
1608 // but apprently it fixes some obscure problem waiting to happen in
1609 // Python.  Since the API was not documented Guido and the gang felt
1610 // safe in changing it.  Needless to say that totally screwed up the
1611 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1612 // code to find the class where the method is actually defined...
1613
1614 static
1615 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1616 {
1617     int i, n;
1618
1619     if (PyType_Check(klass)) {      // new style classes
1620         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1621         PyTypeObject* type = (PyTypeObject*)klass;
1622         PyObject *mro, *res, *base, *dict;
1623         /* Look in tp_dict of types in MRO */
1624         mro = type->tp_mro;
1625         assert(PyTuple_Check(mro));
1626         n = PyTuple_GET_SIZE(mro);
1627         for (i = 0; i < n; i++) {
1628             base = PyTuple_GET_ITEM(mro, i);
1629             if (PyClass_Check(base))
1630                 dict = ((PyClassObject *)base)->cl_dict;
1631             else {
1632                 assert(PyType_Check(base));
1633                 dict = ((PyTypeObject *)base)->tp_dict;
1634             }
1635             assert(dict && PyDict_Check(dict));
1636             res = PyDict_GetItem(dict, name);
1637             if (res != NULL)
1638                 return base;
1639         }
1640         return NULL;
1641     }
1642
1643     else if (PyClass_Check(klass)) { // old style classes
1644         // This code is borrowed/adapted from class_lookup in classobject.c
1645         PyClassObject* cp = (PyClassObject*)klass;
1646         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1647         if (value != NULL) {
1648             return (PyObject*)cp;
1649         }
1650         n = PyTuple_Size(cp->cl_bases);
1651         for (i = 0; i < n; i++) {
1652             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1653             PyObject *v = PyFindClassWithAttr(base, name);
1654             if (v != NULL)
1655                 return v;
1656         }
1657         return NULL;
1658     }
1659     return NULL;
1660 }
1661 #endif
1662
1663
1664 static
1665 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1666 {
1667     PyObject* mgc = PyMethod_GET_CLASS(method);
1668
1669 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1670     return mgc;
1671 #else                             // 2.2 and after, the hard way...
1672
1673     PyObject* nameo = PyString_FromString(name);
1674     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1675     Py_DECREF(nameo);
1676     return klass;
1677 #endif
1678 }
1679
1680
1681
1682 bool wxPyCallbackHelper::findCallback(const char* name) const {
1683     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1684     self->m_lastFound = NULL;
1685
1686     // If the object (m_self) has an attibute of the given name...
1687     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1688         PyObject *method, *klass;
1689         method = PyObject_GetAttrString(m_self, (char*)name);
1690
1691         // ...and if that attribute is a method, and if that method's class is
1692         // not from a base class...
1693         if (PyMethod_Check(method) &&
1694             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1695             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1696
1697             // ...then we'll save a pointer to the method so callCallback can call it.
1698             self->m_lastFound = method;
1699         }
1700         else {
1701             Py_DECREF(method);
1702         }
1703     }
1704     return m_lastFound != NULL;
1705 }
1706
1707
1708 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1709     PyObject*   result;
1710     int         retval = false;
1711
1712     result = callCallbackObj(argTuple);
1713     if (result) {                       // Assumes an integer return type...
1714         retval = PyInt_AsLong(result);
1715         Py_DECREF(result);
1716         PyErr_Clear();                  // forget about it if it's not...
1717     }
1718     return retval;
1719 }
1720
1721 // Invoke the Python callable object, returning the raw PyObject return
1722 // value.  Caller should DECREF the return value and also manage the GIL.
1723 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1724     PyObject* result;
1725
1726     // Save a copy of the pointer in case the callback generates another
1727     // callback.  In that case m_lastFound will have a different value when
1728     // it gets back here...
1729     PyObject* method = m_lastFound;
1730
1731     result = PyEval_CallObject(method, argTuple);
1732     Py_DECREF(argTuple);
1733     Py_DECREF(method);
1734     if (!result) {
1735         PyErr_Print();
1736     }
1737     return result;
1738 }
1739
1740
1741 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1742     cbh.setSelf(self, klass, incref);
1743 }
1744
1745 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1746     return cbh.findCallback(name);
1747 }
1748
1749 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1750     return cbh.callCallback(argTuple);
1751 }
1752
1753 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1754     return cbh.callCallbackObj(argTuple);
1755 }
1756
1757
1758 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1759     if (cbh->m_incRef) {
1760         bool blocked = wxPyBeginBlockThreads();
1761         Py_XDECREF(cbh->m_self);
1762         Py_XDECREF(cbh->m_class);
1763         wxPyEndBlockThreads(blocked);
1764     }
1765 }
1766
1767 //---------------------------------------------------------------------------
1768 //---------------------------------------------------------------------------
1769 // These event classes can be derived from in Python and passed through the event
1770 // system without losing anything.  They do this by keeping a reference to
1771 // themselves and some special case handling in wxPyCallback::EventThunker.
1772
1773
1774 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1775     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1776     //Py_INCREF(m_self);        //      circular loops...
1777     m_cloned = false;
1778 }
1779
1780 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1781     bool blocked = wxPyBeginBlockThreads();
1782     if (m_cloned)
1783         Py_DECREF(m_self);
1784     wxPyEndBlockThreads(blocked);
1785 }
1786
1787 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1788     bool blocked = wxPyBeginBlockThreads();
1789     if (m_cloned)
1790         Py_DECREF(m_self);
1791     m_self = self;
1792     if (clone) {
1793         Py_INCREF(m_self);
1794         m_cloned = true;
1795     }
1796     wxPyEndBlockThreads(blocked);
1797 }
1798
1799 PyObject* wxPyEvtSelfRef::GetSelf() const {
1800     Py_INCREF(m_self);
1801     return m_self;
1802 }
1803
1804
1805 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1806 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1807
1808
1809 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1810     : wxEvent(winid, commandType) {
1811 }
1812
1813
1814 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1815     : wxEvent(evt)
1816 {
1817     SetSelf(evt.m_self, true);
1818 }
1819
1820
1821 wxPyEvent::~wxPyEvent() {
1822 }
1823
1824
1825 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1826     : wxCommandEvent(commandType, id) {
1827 }
1828
1829
1830 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1831     : wxCommandEvent(evt)
1832 {
1833     SetSelf(evt.m_self, true);
1834 }
1835
1836
1837 wxPyCommandEvent::~wxPyCommandEvent() {
1838 }
1839
1840
1841
1842
1843
1844 //---------------------------------------------------------------------------
1845 //---------------------------------------------------------------------------
1846 // Convert a wxList to a Python List, only works for lists of wxObjects
1847
1848 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1849     wxList*     list = (wxList*)listbase;  // this is probably bad...
1850     PyObject*   pyList;
1851     PyObject*   pyObj;
1852     wxObject*   wxObj;
1853     wxNode*     node = list->GetFirst();
1854
1855     bool blocked = wxPyBeginBlockThreads();
1856     pyList = PyList_New(0);
1857     while (node) {
1858         wxObj = node->GetData();
1859         pyObj = wxPyMake_wxObject(wxObj,false);
1860         PyList_Append(pyList, pyObj);
1861         node = node->GetNext();
1862     }
1863     wxPyEndBlockThreads(blocked);
1864     return pyList;
1865 }
1866
1867 //----------------------------------------------------------------------
1868
1869 long wxPyGetWinHandle(wxWindow* win) {
1870
1871 #ifdef __WXMSW__
1872     return (long)win->GetHandle();
1873 #endif
1874
1875 #if defined(__WXGTK__) || defined(__WXX11)
1876     return (long)GetXWindow(win);
1877 #endif
1878
1879 #ifdef __WXMAC__
1880     //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef());
1881     return (long)win->GetHandle();
1882 #endif
1883
1884     return 0;
1885 }
1886
1887 //----------------------------------------------------------------------
1888 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1889 // included in every file over and over again...
1890
1891 wxString* wxString_in_helper(PyObject* source) {
1892     wxString* target = NULL;
1893
1894     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1895         PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
1896         return NULL;
1897     }
1898 #if wxUSE_UNICODE
1899     PyObject* uni = source;
1900     if (PyString_Check(source)) {
1901         uni = PyUnicode_FromObject(source);
1902         if (PyErr_Occurred()) return NULL;
1903     }
1904     target = new wxString();
1905     size_t len = PyUnicode_GET_SIZE(uni);
1906     if (len) {
1907         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len);
1908         target->UngetWriteBuf(len);
1909     }
1910
1911     if (PyString_Check(source))
1912         Py_DECREF(uni);
1913 #else
1914     // Convert to a string object if it isn't already, then to wxString
1915     PyObject* str = source;
1916     if (!PyString_Check(source)) {
1917         str = PyObject_Str(source);
1918         if (PyErr_Occurred()) return NULL;
1919     }
1920     char* tmpPtr; int tmpSize;
1921     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1922     target = new wxString(tmpPtr, tmpSize);
1923
1924     if (!PyString_Check(source))
1925         Py_DECREF(str);
1926 #endif // wxUSE_UNICODE
1927
1928     return target;
1929 }
1930
1931
1932 // Similar to above except doesn't use "new" and doesn't set an exception
1933 wxString Py2wxString(PyObject* source)
1934 {
1935     wxString target;
1936
1937 #if wxUSE_UNICODE
1938     // Convert to a unicode object, if not already, then to a wxString
1939     PyObject* uni = source;
1940     if (!PyUnicode_Check(source)) {
1941         uni = PyUnicode_FromObject(source);
1942         if (PyErr_Occurred()) return wxEmptyString;  // TODO:  should we PyErr_Clear?
1943     }
1944     size_t len = PyUnicode_GET_SIZE(uni);
1945     if (len) {
1946         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len);
1947         target.UngetWriteBuf();
1948     }
1949
1950     if (!PyUnicode_Check(source))
1951         Py_DECREF(uni);
1952 #else
1953     // Convert to a string object if it isn't already, then to wxString
1954     PyObject* str = source;
1955     if (!PyString_Check(source)) {
1956         str = PyObject_Str(source);
1957         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
1958     }
1959     char* tmpPtr; int tmpSize;
1960     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1961     target = wxString(tmpPtr, tmpSize);
1962
1963     if (!PyString_Check(source))
1964         Py_DECREF(str);
1965 #endif // wxUSE_UNICODE
1966
1967     return target;
1968 }
1969
1970
1971 // Make either a Python String or Unicode object, depending on build mode
1972 PyObject* wx2PyString(const wxString& src)
1973 {
1974     PyObject* str;
1975 #if wxUSE_UNICODE
1976     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1977 #else
1978     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1979 #endif
1980     return str;
1981 }
1982
1983
1984 //----------------------------------------------------------------------
1985
1986
1987 byte* byte_LIST_helper(PyObject* source) {
1988     if (!PyList_Check(source)) {
1989         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1990         return NULL;
1991     }
1992     int count = PyList_Size(source);
1993     byte* temp = new byte[count];
1994     if (! temp) {
1995         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1996         return NULL;
1997     }
1998     for (int x=0; x<count; x++) {
1999         PyObject* o = PyList_GetItem(source, x);
2000         if (! PyInt_Check(o)) {
2001             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2002             return NULL;
2003         }
2004         temp[x] = (byte)PyInt_AsLong(o);
2005     }
2006     return temp;
2007 }
2008
2009
2010 int* int_LIST_helper(PyObject* source) {
2011     if (!PyList_Check(source)) {
2012         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2013         return NULL;
2014     }
2015     int count = PyList_Size(source);
2016     int* temp = new int[count];
2017     if (! temp) {
2018         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2019         return NULL;
2020     }
2021     for (int x=0; x<count; x++) {
2022         PyObject* o = PyList_GetItem(source, x);
2023         if (! PyInt_Check(o)) {
2024             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2025             return NULL;
2026         }
2027         temp[x] = PyInt_AsLong(o);
2028     }
2029     return temp;
2030 }
2031
2032
2033 long* long_LIST_helper(PyObject* source) {
2034     if (!PyList_Check(source)) {
2035         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2036         return NULL;
2037     }
2038     int count = PyList_Size(source);
2039     long* temp = new long[count];
2040     if (! temp) {
2041         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2042         return NULL;
2043     }
2044     for (int x=0; x<count; x++) {
2045         PyObject* o = PyList_GetItem(source, x);
2046         if (! PyInt_Check(o)) {
2047             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2048             return NULL;
2049         }
2050         temp[x] = PyInt_AsLong(o);
2051     }
2052     return temp;
2053 }
2054
2055
2056 char** string_LIST_helper(PyObject* source) {
2057     if (!PyList_Check(source)) {
2058         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2059         return NULL;
2060     }
2061     int count = PyList_Size(source);
2062     char** temp = new char*[count];
2063     if (! temp) {
2064         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2065         return NULL;
2066     }
2067     for (int x=0; x<count; x++) {
2068         PyObject* o = PyList_GetItem(source, x);
2069         if (! PyString_Check(o)) {
2070             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2071             return NULL;
2072         }
2073         temp[x] = PyString_AsString(o);
2074     }
2075     return temp;
2076 }
2077
2078 //--------------------------------
2079 // Part of patch from Tim Hochberg
2080 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
2081     if (PyInt_Check(o1) && PyInt_Check(o2)) {
2082         point->x = PyInt_AS_LONG(o1);
2083         point->y = PyInt_AS_LONG(o2);
2084         return true;
2085     }
2086     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
2087         point->x = (int)PyFloat_AS_DOUBLE(o1);
2088         point->y = (int)PyFloat_AS_DOUBLE(o2);
2089         return true;
2090     }
2091     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
2092         // Disallow instances because they can cause havok
2093         return false;
2094     }
2095     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
2096         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
2097         point->x = PyInt_AsLong(o1);
2098         point->y = PyInt_AsLong(o2);
2099         return true;
2100     }
2101     return false;
2102 }
2103
2104
2105 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
2106     // Putting all of the declarations here allows
2107     // us to put the error handling all in one place.
2108     int x;
2109     wxPoint* temp;
2110     PyObject *o, *o1, *o2;
2111     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2112
2113     if (!PySequence_Check(source)) {
2114         goto error0;
2115     }
2116
2117     // The length of the sequence is returned in count.
2118     *count = PySequence_Length(source);
2119     if (*count < 0) {
2120         goto error0;
2121     }
2122
2123     temp = new wxPoint[*count];
2124     if (!temp) {
2125         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2126         return NULL;
2127     }
2128     for (x=0; x<*count; x++) {
2129         // Get an item: try fast way first.
2130         if (isFast) {
2131             o = PySequence_Fast_GET_ITEM(source, x);
2132         }
2133         else {
2134             o = PySequence_GetItem(source, x);
2135             if (o == NULL) {
2136                 goto error1;
2137             }
2138         }
2139
2140         // Convert o to wxPoint.
2141         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
2142             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
2143             o1 = PySequence_Fast_GET_ITEM(o, 0);
2144             o2 = PySequence_Fast_GET_ITEM(o, 1);
2145             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2146                 goto error2;
2147             }
2148         }
2149         else if (wxPySwigInstance_Check(o)) {
2150             wxPoint* pt;
2151             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
2152                 goto error2;
2153             }
2154             temp[x] = *pt;
2155         }
2156         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
2157             o1 = PySequence_GetItem(o, 0);
2158             o2 = PySequence_GetItem(o, 1);
2159             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2160                 goto error3;
2161             }
2162             Py_DECREF(o1);
2163             Py_DECREF(o2);
2164         }
2165         else {
2166             goto error2;
2167         }
2168         // Clean up.
2169         if (!isFast)
2170             Py_DECREF(o);
2171     }
2172     return temp;
2173
2174 error3:
2175     Py_DECREF(o1);
2176     Py_DECREF(o2);
2177 error2:
2178     if (!isFast)
2179         Py_DECREF(o);
2180 error1:
2181     delete [] temp;
2182 error0:
2183     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2184     return NULL;
2185 }
2186 // end of patch
2187 //------------------------------
2188
2189
2190 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2191     if (!PyList_Check(source)) {
2192         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2193         return NULL;
2194     }
2195     int count = PyList_Size(source);
2196     wxBitmap** temp = new wxBitmap*[count];
2197     if (! temp) {
2198         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2199         return NULL;
2200     }
2201     for (int x=0; x<count; x++) {
2202         PyObject* o = PyList_GetItem(source, x);
2203         if (wxPySwigInstance_Check(o)) {
2204             wxBitmap*    pt;
2205             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2206                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2207                 return NULL;
2208             }
2209             temp[x] = pt;
2210         }
2211         else {
2212             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2213             return NULL;
2214         }
2215     }
2216     return temp;
2217 }
2218
2219
2220
2221 wxString* wxString_LIST_helper(PyObject* source) {
2222     if (!PyList_Check(source)) {
2223         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2224         return NULL;
2225     }
2226     int count = PyList_Size(source);
2227     wxString* temp = new wxString[count];
2228     if (! temp) {
2229         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2230         return NULL;
2231     }
2232     for (int x=0; x<count; x++) {
2233         PyObject* o = PyList_GetItem(source, x);
2234 #if PYTHON_API_VERSION >= 1009
2235         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2236             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2237             return NULL;
2238         }
2239 #else
2240         if (! PyString_Check(o)) {
2241             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2242             return NULL;
2243         }
2244 #endif
2245
2246         wxString* pStr = wxString_in_helper(o);
2247         temp[x] = *pStr;
2248         delete pStr;
2249     }
2250     return temp;
2251 }
2252
2253
2254 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2255     if (!PyList_Check(source)) {
2256         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2257         return NULL;
2258     }
2259     int count                = PyList_Size(source);
2260     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2261     if (! temp) {
2262         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2263         return NULL;
2264     }
2265     for (int x=0; x<count; x++) {
2266         PyObject* o = PyList_GetItem(source, x);
2267         if (wxPySwigInstance_Check(o)) {
2268             wxAcceleratorEntry* ae;
2269             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2270                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2271                 return NULL;
2272             }
2273             temp[x] = *ae;
2274         }
2275         else if (PyTuple_Check(o)) {
2276             PyObject* o1 = PyTuple_GetItem(o, 0);
2277             PyObject* o2 = PyTuple_GetItem(o, 1);
2278             PyObject* o3 = PyTuple_GetItem(o, 2);
2279             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2280         }
2281         else {
2282             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2283             return NULL;
2284         }
2285     }
2286     return temp;
2287 }
2288
2289
2290 wxPen** wxPen_LIST_helper(PyObject* source) {
2291     if (!PyList_Check(source)) {
2292         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2293         return NULL;
2294     }
2295     int count = PyList_Size(source);
2296     wxPen** temp = new wxPen*[count];
2297     if (!temp) {
2298         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2299         return NULL;
2300     }
2301     for (int x=0; x<count; x++) {
2302         PyObject* o = PyList_GetItem(source, x);
2303         if (wxPySwigInstance_Check(o)) {
2304             wxPen*  pt;
2305             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2306                 delete temp;
2307                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2308                 return NULL;
2309             }
2310             temp[x] = pt;
2311         }
2312         else {
2313             delete temp;
2314             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2315             return NULL;
2316         }
2317     }
2318     return temp;
2319 }
2320
2321
2322 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2323     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2324     PyObject *o1, *o2;
2325
2326     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2327         return false;
2328
2329     if (isFast) {
2330         o1 = PySequence_Fast_GET_ITEM(source, 0);
2331         o2 = PySequence_Fast_GET_ITEM(source, 1);
2332     }
2333     else {
2334         o1 = PySequence_GetItem(source, 0);
2335         o2 = PySequence_GetItem(source, 1);
2336     }
2337
2338     *i1 = PyInt_AsLong(o1);
2339     *i2 = PyInt_AsLong(o2);
2340
2341     if (! isFast) {
2342         Py_DECREF(o1);
2343         Py_DECREF(o2);
2344     }
2345     return true;
2346 }
2347
2348
2349 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2350     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2351     PyObject *o1, *o2, *o3, *o4;
2352
2353     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2354         return false;
2355
2356     if (isFast) {
2357         o1 = PySequence_Fast_GET_ITEM(source, 0);
2358         o2 = PySequence_Fast_GET_ITEM(source, 1);
2359         o3 = PySequence_Fast_GET_ITEM(source, 2);
2360         o4 = PySequence_Fast_GET_ITEM(source, 3);
2361     }
2362     else {
2363         o1 = PySequence_GetItem(source, 0);
2364         o2 = PySequence_GetItem(source, 1);
2365         o3 = PySequence_GetItem(source, 2);
2366         o4 = PySequence_GetItem(source, 3);
2367     }
2368
2369     *i1 = PyInt_AsLong(o1);
2370     *i2 = PyInt_AsLong(o2);
2371     *i3 = PyInt_AsLong(o3);
2372     *i4 = PyInt_AsLong(o4);
2373
2374     if (! isFast) {
2375         Py_DECREF(o1);
2376         Py_DECREF(o2);
2377         Py_DECREF(o3);
2378         Py_DECREF(o4);
2379     }
2380     return true;
2381 }
2382
2383
2384 //----------------------------------------------------------------------
2385
2386 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2387 {
2388     void* ptr;
2389
2390     if (wxPySwigInstance_Check(source) &&
2391         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2392         return true;
2393
2394     PyErr_Clear();
2395     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2396         return true;
2397
2398     return false;
2399 }
2400
2401 bool wxSize_helper(PyObject* source, wxSize** obj)
2402 {
2403     if (source == Py_None) {
2404         **obj = wxSize(-1,-1);
2405         return true;
2406     }
2407     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2408 }
2409
2410
2411 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2412 {
2413     if (source == Py_None) {
2414         **obj = wxPoint(-1,-1);
2415         return true;
2416     }
2417     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2418 }
2419
2420
2421
2422 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2423
2424     if (source == Py_None) {
2425         **obj = wxRealPoint(-1,-1);
2426         return true;
2427     }
2428
2429     // If source is an object instance then it may already be the right type
2430     if (wxPySwigInstance_Check(source)) {
2431         wxRealPoint* ptr;
2432         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2433             goto error;
2434         *obj = ptr;
2435         return true;
2436     }
2437     // otherwise a 2-tuple of floats is expected
2438     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2439         PyObject* o1 = PySequence_GetItem(source, 0);
2440         PyObject* o2 = PySequence_GetItem(source, 1);
2441         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2442             Py_DECREF(o1);
2443             Py_DECREF(o2);
2444             goto error;
2445         }
2446         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2447         Py_DECREF(o1);
2448         Py_DECREF(o2);
2449         return true;
2450     }
2451
2452  error:
2453     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2454     return false;
2455 }
2456
2457
2458
2459 bool wxRect_helper(PyObject* source, wxRect** obj) {
2460
2461     if (source == Py_None) {
2462         **obj = wxRect(-1,-1,-1,-1);
2463         return true;
2464     }
2465
2466     // If source is an object instance then it may already be the right type
2467     if (wxPySwigInstance_Check(source)) {
2468         wxRect* ptr;
2469         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2470             goto error;
2471         *obj = ptr;
2472         return true;
2473     }
2474     // otherwise a 4-tuple of integers is expected
2475     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2476         PyObject* o1 = PySequence_GetItem(source, 0);
2477         PyObject* o2 = PySequence_GetItem(source, 1);
2478         PyObject* o3 = PySequence_GetItem(source, 2);
2479         PyObject* o4 = PySequence_GetItem(source, 3);
2480         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2481             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2482             Py_DECREF(o1);
2483             Py_DECREF(o2);
2484             Py_DECREF(o3);
2485             Py_DECREF(o4);
2486             goto error;
2487         }
2488         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2489                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2490         Py_DECREF(o1);
2491         Py_DECREF(o2);
2492         Py_DECREF(o3);
2493         Py_DECREF(o4);
2494         return true;
2495     }
2496
2497  error:
2498     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2499     return false;
2500 }
2501
2502
2503
2504 bool wxColour_helper(PyObject* source, wxColour** obj) {
2505
2506     if (source == Py_None) {
2507         **obj = wxNullColour;
2508         return true;
2509     }
2510
2511     // If source is an object instance then it may already be the right type
2512     if (wxPySwigInstance_Check(source)) {
2513         wxColour* ptr;
2514         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2515             goto error;
2516         *obj = ptr;
2517         return true;
2518     }
2519     // otherwise check for a string
2520     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2521         wxString spec = Py2wxString(source);
2522         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2523             long red, green, blue;
2524             red = green = blue = 0;
2525             spec.Mid(1,2).ToLong(&red,   16);
2526             spec.Mid(3,2).ToLong(&green, 16);
2527             spec.Mid(5,2).ToLong(&blue,  16);
2528
2529             **obj = wxColour(red, green, blue);
2530             return true;
2531         }
2532         else {                                       // it's a colour name
2533             **obj = wxColour(spec);
2534             return true;
2535         }
2536     }
2537     // last chance: 3-tuple of integers is expected
2538     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2539         PyObject* o1 = PySequence_GetItem(source, 0);
2540         PyObject* o2 = PySequence_GetItem(source, 1);
2541         PyObject* o3 = PySequence_GetItem(source, 2);
2542         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2543             Py_DECREF(o1);
2544             Py_DECREF(o2);
2545             Py_DECREF(o3);
2546             goto error;
2547         }
2548         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2549         Py_DECREF(o1);
2550         Py_DECREF(o2);
2551         Py_DECREF(o3);
2552         return true;
2553     }
2554
2555  error:
2556     PyErr_SetString(PyExc_TypeError,
2557                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2558     return false;
2559 }
2560
2561
2562 bool wxColour_typecheck(PyObject* source) {
2563
2564     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2565         return true;
2566
2567     if (PyString_Check(source) || PyUnicode_Check(source))
2568         return true;
2569
2570     return false;
2571 }
2572
2573
2574
2575 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2576
2577     if (source == Py_None) {
2578         **obj = wxPoint2D(-1,-1);
2579         return true;
2580     }
2581
2582     // If source is an object instance then it may already be the right type
2583     if (wxPySwigInstance_Check(source)) {
2584         wxPoint2D* ptr;
2585         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2586             goto error;
2587         *obj = ptr;
2588         return true;
2589     }
2590     // otherwise a length-2 sequence of floats is expected
2591     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2592         PyObject* o1 = PySequence_GetItem(source, 0);
2593         PyObject* o2 = PySequence_GetItem(source, 1);
2594         // This should really check for floats, not numbers -- but that would break code.
2595         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2596             Py_DECREF(o1);
2597             Py_DECREF(o2);
2598             goto error;
2599         }
2600         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2601         Py_DECREF(o1);
2602         Py_DECREF(o2);
2603         return true;
2604     }
2605  error:
2606     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2607     return false;
2608 }
2609
2610
2611 //----------------------------------------------------------------------
2612
2613 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2614
2615     PyObject* list = PyList_New(0);
2616     for (size_t i=0; i < arr.GetCount(); i++) {
2617 #if wxUSE_UNICODE
2618         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2619 #else
2620         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2621 #endif
2622         PyList_Append(list, str);
2623         Py_DECREF(str);
2624     }
2625     return list;
2626 }
2627
2628
2629 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2630
2631     PyObject* list = PyList_New(0);
2632     for (size_t i=0; i < arr.GetCount(); i++) {
2633         PyObject* number = PyInt_FromLong(arr[i]);
2634         PyList_Append(list, number);
2635         Py_DECREF(number);
2636     }
2637     return list;
2638 }
2639
2640
2641 //----------------------------------------------------------------------
2642 //----------------------------------------------------------------------
2643
2644
2645
2646