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 <gtk/gtk.h>
  27 #include <gdk/gdkprivate.h>
  28 #include <wx/gtk/win_gtk.h>
  29 #endif
  30
  31 #include <wx/clipbrd.h>
  32 #include <wx/mimetype.h>
  33 #include <wx/image.h>
  34
  35 //----------------------------------------------------------------------
  36
  37 #if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE
  38 #error Python must support Unicode to use wxWindows Unicode
  39 #endif
  40
  41 //----------------------------------------------------------------------
  42
  43 wxPyApp* wxPythonApp = NULL;  // Global instance of application object
  44 bool wxPyDoCleanup = False;
  45 bool wxPyDoingCleanup = False;
  46
  47
  48 #ifdef WXP_WITH_THREAD
  49 struct wxPyThreadState {
  50     unsigned long  tid;
  51     PyThreadState* tstate;
  52     int            blocked;
  53
  54     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  55         : tid(_tid), tstate(_tstate), blocked(1) {}
  56 };
  57
  58 #include <wx/dynarray.h>
  59 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  60 #include <wx/arrimpl.cpp>
  61 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  62
  63 wxPyThreadStateArray* wxPyTStates = NULL;
  64 wxMutex*              wxPyTMutex = NULL;
  65 #endif
  66
  67
  68 static PyObject* wxPython_dict = NULL;
  69 static PyObject* wxPyAssertionError = NULL;
  70
  71 PyObject* wxPyPtrTypeMap = NULL;
  72
  73
  74 #ifdef __WXMSW__             // If building for win32...
  75 //----------------------------------------------------------------------
  76 // This gets run when the DLL is loaded.  We just need to save a handle.
  77 //----------------------------------------------------------------------
  78
  79 BOOL WINAPI DllMain(
  80     HINSTANCE   hinstDLL,    // handle to DLL module
  81     DWORD       fdwReason,   // reason for calling function
  82     LPVOID      lpvReserved  // reserved
  83    )
  84 {
  85     // If wxPython is embedded in another wxWindows app then
  86     // the inatance has already been set.
  87     if (! wxGetInstance())
  88         wxSetInstance(hinstDLL);
  89     return True;
  90 }
  91 #endif
  92
  93 //----------------------------------------------------------------------
  94 // Classes for implementing the wxp main application shell.
  95 //----------------------------------------------------------------------
  96
  97 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
  98
  99
 100 wxPyApp::wxPyApp() {
 101     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 102     m_startupComplete = False;
 103 }
 104
 105
 106 wxPyApp::~wxPyApp() {
 107 }
 108
 109
 110 // This one isn't acutally called...  We fake it with _BootstrapApp
 111 bool wxPyApp::OnInit() {
 112     return False;
 113 }
 114
 115
 116 int  wxPyApp::MainLoop() {
 117     int retval = 0;
 118
 119     DeletePendingObjects();
 120     bool initialized = wxTopLevelWindows.GetCount() != 0;
 121     if (initialized) {
 122         if ( m_exitOnFrameDelete == Later ) {
 123             m_exitOnFrameDelete = Yes;
 124         }
 125
 126         retval = wxApp::MainLoop();
 127         OnExit();
 128     }
 129     return retval;
 130 }
 131
 132
 133 bool wxPyApp::OnInitGui() {
 134     bool rval=True;
 135     wxApp::OnInitGui();  // in this case always call the base class version
 136     wxPyBeginBlockThreads();
 137     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 138         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 139     wxPyEndBlockThreads();
 140     return rval;
 141 }
 142
 143
 144 int wxPyApp::OnExit() {
 145     int rval=0;
 146     wxPyBeginBlockThreads();
 147     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 148         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 149     wxPyEndBlockThreads();
 150     wxApp::OnExit();  // in this case always call the base class version
 151     return rval;
 152 }
 153
 154
 155 #ifdef __WXDEBUG__
 156 void wxPyApp::OnAssert(const wxChar *file,
 157                      int line,
 158                      const wxChar *cond,
 159                      const wxChar *msg) {
 160
 161     // if we're not fully initialized then just log the error
 162     if (! m_startupComplete) {
 163         wxString buf;
 164         buf.Alloc(4096);
 165         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 166                    file, line, cond);
 167         if (msg != NULL) {
 168             buf += wxT(": ");
 169             buf += msg;
 170         }
 171         wxLogDebug(buf);
 172         return;
 173     }
 174
 175     // If the OnAssert is overloaded in the Python class then call it...
 176     bool found;
 177     wxPyBeginBlockThreads();
 178     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 179         PyObject* fso = wx2PyString(file);
 180         PyObject* cso = wx2PyString(file);
 181         PyObject* mso;
 182         if (msg != NULL)
 183             mso = wx2PyString(file);
 184         else {
 185             mso = Py_None; Py_INCREF(Py_None);
 186         }
 187         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 188         Py_DECREF(fso);
 189         Py_DECREF(cso);
 190         Py_DECREF(mso);
 191     }
 192     wxPyEndBlockThreads();
 193
 194     // ...otherwise do our own thing with it
 195     if (! found) {
 196         // ignore it?
 197         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 198             return;
 199
 200         // turn it into a Python exception?
 201         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 202             wxString buf;
 203             buf.Alloc(4096);
 204             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 205             if (msg != NULL) {
 206                 buf += wxT(": ");
 207                 buf += msg;
 208             }
 209
 210             // set the exception
 211             wxPyBeginBlockThreads();
 212             PyObject* s = wx2PyString(buf);
 213             PyErr_SetObject(wxPyAssertionError, s);
 214             Py_DECREF(s);
 215             wxPyEndBlockThreads();
 216
 217             // Now when control returns to whatever API wrapper was called from
 218             // Python it should detect that an exception is set and will return
 219             // NULL, signalling the exception to Python.
 220         }
 221
 222         // Send it to the normal log destination, but only if
 223         // not _DIALOG because it will call this too
 224         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 225             wxString buf;
 226             buf.Alloc(4096);
 227             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 228                        file, line, cond);
 229             if (msg != NULL) {
 230                 buf += wxT(": ");
 231                 buf += msg;
 232             }
 233             wxLogDebug(buf);
 234         }
 235
 236         // do the normal wx assert dialog?
 237         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 238             wxApp::OnAssert(file, line, cond, msg);
 239     }
 240 }
 241 #endif
 242
 243
 244
 245 /*static*/
 246 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 247 #ifdef __WXMAC__
 248     return s_macSupportPCMenuShortcuts;
 249 #else
 250     return 0;
 251 #endif
 252 }
 253
 254 /*static*/
 255 long wxPyApp::GetMacAboutMenuItemId() {
 256 #ifdef __WXMAC__
 257     return s_macAboutMenuItemId;
 258 #else
 259     return 0;
 260 #endif
 261 }
 262
 263 /*static*/
 264 long wxPyApp::GetMacPreferencesMenuItemId() {
 265 #ifdef __WXMAC__
 266     return s_macPreferencesMenuItemId;
 267 #else
 268     return 0;
 269 #endif
 270 }
 271
 272 /*static*/
 273 long wxPyApp::GetMacExitMenuItemId() {
 274 #ifdef __WXMAC__
 275     return s_macExitMenuItemId;
 276 #else
 277     return 0;
 278 #endif
 279 }
 280
 281 /*static*/
 282 wxString wxPyApp::GetMacHelpMenuTitleName() {
 283 #ifdef __WXMAC__
 284     return s_macHelpMenuTitleName;
 285 #else
 286     return wxEmptyString;
 287 #endif
 288 }
 289
 290 /*static*/
 291 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 292 #ifdef __WXMAC__
 293     s_macSupportPCMenuShortcuts = val;
 294 #endif
 295 }
 296
 297 /*static*/
 298 void wxPyApp::SetMacAboutMenuItemId(long val) {
 299 #ifdef __WXMAC__
 300     s_macAboutMenuItemId = val;
 301 #endif
 302 }
 303
 304 /*static*/
 305 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 306 #ifdef __WXMAC__
 307     s_macPreferencesMenuItemId = val;
 308 #endif
 309 }
 310
 311 /*static*/
 312 void wxPyApp::SetMacExitMenuItemId(long val) {
 313 #ifdef __WXMAC__
 314     s_macExitMenuItemId = val;
 315 #endif
 316 }
 317
 318 /*static*/
 319 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 320 #ifdef __WXMAC__
 321     s_macHelpMenuTitleName = val;
 322 #endif
 323 }
 324
 325
 326 // This finishes the initialization of wxWindows and then calls the OnInit
 327 // that should be present in the derived (Python) class.
 328 void wxPyApp::_BootstrapApp()
 329 {
 330     bool        result;
 331     PyObject*   retval = NULL;
 332     PyObject*   pyint  = NULL;
 333
 334
 335     // Get any command-line args passed to this program from the sys module
 336     int    argc = 0;
 337     char** argv = NULL;
 338     wxPyBeginBlockThreads();
 339     PyObject* sysargv = PySys_GetObject("argv");
 340     if (sysargv != NULL) {
 341         argc = PyList_Size(sysargv);
 342         argv = new char*[argc+1];
 343         int x;
 344         for(x=0; x<argc; x++) {
 345             PyObject *pyArg = PyList_GetItem(sysargv, x);
 346             argv[x] = PyString_AsString(pyArg);
 347         }
 348         argv[argc] = NULL;
 349     }
 350     wxPyEndBlockThreads();
 351
 352     result = wxEntryStart(argc, argv);
 353     delete [] argv;
 354
 355     wxPyBeginBlockThreads();
 356     if (! result)  {
 357         PyErr_SetString(PyExc_SystemError, "wxEntryStart failed!");
 358         goto error;
 359     }
 360
 361     // The stock objects were all NULL when they were loaded into
 362     // SWIG generated proxies, so re-init those now...
 363     wxPy_ReinitStockObjects(3);
 364
 365     // It's now ok to generate exceptions for assertion errors.
 366     wxPythonApp->SetStartupComplete(True);
 367
 368     // Call the Python wxApp's OnInit function
 369     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 370
 371         PyObject* method = m_myInst.GetLastFound();
 372         PyObject* argTuple = PyTuple_New(0);
 373         retval = PyEval_CallObject(method, argTuple);
 374         Py_DECREF(argTuple);
 375         Py_DECREF(method);
 376         if (retval == NULL)
 377             goto error;
 378
 379         pyint = PyNumber_Int(retval);
 380         if (! pyint) {
 381             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 382             goto error;
 383         }
 384         result = PyInt_AS_LONG(pyint);
 385     }
 386     else {
 387         // Is it okay if there is no OnInit?  Probably so...
 388         result = True;
 389     }
 390
 391
 392     if (! result) {
 393         PyErr_SetString(PyExc_SystemExit, "OnInit returned False, exiting...");
 394     }
 395
 396  error:
 397     Py_XDECREF(retval);
 398     Py_XDECREF(pyint);
 399
 400     wxPyEndBlockThreads();
 401 };
 402
 403 //---------------------------------------------------------------------
 404 //----------------------------------------------------------------------
 405
 406
 407 #if 0
 408 static char* wxPyCopyCString(const wxChar* src)
 409 {
 410     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 411     size_t len = strlen(buff);
 412     char*  dest = new char[len+1];
 413     strcpy(dest, buff);
 414     return dest;
 415 }
 416
 417 #if wxUSE_UNICODE
 418 static char* wxPyCopyCString(const char* src)   // we need a char version too
 419 {
 420     size_t len = strlen(src);
 421     char*  dest = new char[len+1];
 422     strcpy(dest, src);
 423     return dest;
 424 }
 425 #endif
 426
 427 static wxChar* wxPyCopyWString(const char *src)
 428 {
 429     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 430     wxString str(src, *wxConvCurrent);
 431     return copystring(str);
 432 }
 433
 434 #if wxUSE_UNICODE
 435 static wxChar* wxPyCopyWString(const wxChar *src)
 436 {
 437     return copystring(src);
 438 }
 439 #endif
 440 #endif
 441
 442
 443 inline const char* dropwx(const char* name) {
 444     if (name[0] == 'w' && name[1] == 'x')
 445         return name+2;
 446     else
 447         return name;
 448 }
 449
 450 //----------------------------------------------------------------------
 451
 452 // This function is called when the wxc module is imported to do some initial
 453 // setup.  (Before there is a wxApp object.)  The rest happens in
 454 // wxPyApp::_BootstrapApp
 455 void __wxPyPreStart(PyObject* moduleDict)
 456 {
 457
 458 #ifdef __WXMSW__
 459 //    wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 460 #endif
 461
 462 #ifdef WXP_WITH_THREAD
 463     PyEval_InitThreads();
 464     wxPyTStates = new wxPyThreadStateArray;
 465     wxPyTMutex = new wxMutex;
 466
 467     // Save the current (main) thread state in our array
 468     PyThreadState* tstate = wxPyBeginAllowThreads();
 469     wxPyEndAllowThreads(tstate);
 470 #endif
 471
 472     // Ensure that the build options in the DLL (or whatever) match this build
 473     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 474
 475     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 476     wxPy_ReinitStockObjects(1);
 477 }
 478
 479
 480
 481 void __wxPyCleanup() {
 482     wxPyDoingCleanup = True;
 483     if (wxPyDoCleanup) {
 484         wxPyDoCleanup = False;
 485         wxEntryCleanup();
 486     }
 487 #ifdef WXP_WITH_THREAD
 488     delete wxPyTMutex;
 489     wxPyTMutex = NULL;
 490     wxPyTStates->Empty();
 491     delete wxPyTStates;
 492     wxPyTStates = NULL;
 493 #endif
 494 }
 495
 496
 497 // Save a reference to the dictionary of the wx.core module, and inject
 498 // a few more things into it.
 499 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 500 {
 501
 502     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 503         return NULL;
 504
 505     if (!PyDict_Check(wxPython_dict)) {
 506         PyErr_SetString(PyExc_TypeError, "_wxPySetDictionary must have dictionary object!");
 507         return NULL;
 508     }
 509
 510     if (! wxPyPtrTypeMap)
 511         wxPyPtrTypeMap = PyDict_New();
 512     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 513
 514     // Create an exception object to use for wxASSERTions
 515     wxPyAssertionError = PyErr_NewException("wx.core.PyAssertionError",
 516                                             PyExc_AssertionError, NULL);
 517     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 518
 519
 520 #ifdef __WXMOTIF__
 521 #define wxPlatform "__WXMOTIF__"
 522 #endif
 523 #ifdef __WXX11__
 524 #define wxPlatform "__WXX11__"
 525 #endif
 526 #ifdef __WXGTK__
 527 #define wxPlatform "__WXGTK__"
 528 #endif
 529 #if defined(__WIN32__) || defined(__WXMSW__)
 530 #define wxPlatform "__WXMSW__"
 531 #endif
 532 #ifdef __WXMAC__
 533 #define wxPlatform "__WXMAC__"
 534 #endif
 535
 536 #ifdef __WXDEBUG__
 537     int wxdebug = 1;
 538 #else
 539     int wxdebug = 0;
 540 #endif
 541
 542     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 543     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 544     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 545
 546     RETURN_NONE();
 547 }
 548
 549
 550 //---------------------------------------------------------------------------
 551
 552 // Python's PyInstance_Check does not return True for instances of new-style
 553 // classes.  This should get close enough for both new and old classes but I
 554 // should re-evaluate the need for doing instance checks...
 555 bool wxPyInstance_Check(PyObject* obj) {
 556     return PyObject_HasAttrString(obj, "__class__") != 0;
 557 }
 558
 559
 560 // This one checks if the object is an instance of a SWIG proxy class (it has
 561 // a .this attribute)
 562 bool wxPySwigInstance_Check(PyObject* obj) {
 563     return PyObject_HasAttrString(obj, "this") != 0;
 564 }
 565
 566 //---------------------------------------------------------------------------
 567
 568 // The stock objects are no longer created when the wxc module is imported,
 569 // but only after the app object has been created.  The
 570 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 571 // objects though various stages of evolution:
 572 //
 573 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 574 //           object will be created (otherwise it will just use None.)
 575 //
 576 //   pass 2: After the module has been imported and the python proxys have
 577 //           been created, then set the __class__ to be _wxPyUnbornObject so
 578 //           it will catch any access to the object and will raise an exception.
 579 //
 580 //   pass 3: Finally, from OnInit patch things up so the stock objects can
 581 //           be used.
 582
 583
 584 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 585 {
 586     wxPy_ReinitStockObjects(2);
 587     RETURN_NONE();
 588 }
 589
 590
 591 static void rsoPass2(const char* name)
 592 {
 593     static PyObject* unbornObjectClass = NULL;
 594     PyObject* obj;
 595
 596     if (unbornObjectClass == NULL) {
 597         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 598         Py_INCREF(unbornObjectClass);
 599     }
 600
 601     // Find the object instance
 602     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 603     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 604     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 605
 606     // Change its class
 607     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 608
 609 }
 610
 611 static void rsoPass3(const char* name, const char* classname, void* ptr)
 612 {
 613     PyObject* obj;
 614     PyObject* classobj;
 615     PyObject* ptrobj;
 616
 617     // Find the object instance
 618     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 619     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 620     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 621
 622     // Find the class object and put it back in the instance
 623     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 624     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 625     PyObject_SetAttrString(obj, "__class__",  classobj);
 626
 627     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 628     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 629     PyObject_SetAttrString(obj, "this", ptrobj);
 630     Py_DECREF(ptrobj);
 631 }
 632
 633
 634
 635 void wxPy_ReinitStockObjects(int pass)
 636 {
 637
 638 #define REINITOBJ(name, classname) \
 639     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 640     else if (pass == 2) { rsoPass2(#name); } \
 641     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 642
 643
 644 #define REINITOBJ2(name, classname) \
 645     if (pass == 1) { } \
 646     else if (pass == 2) { rsoPass2(#name); } \
 647     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 648
 649
 650     REINITOBJ(wxNORMAL_FONT, wxFont);
 651     REINITOBJ(wxSMALL_FONT, wxFont);
 652     REINITOBJ(wxITALIC_FONT, wxFont);
 653     REINITOBJ(wxSWISS_FONT, wxFont);
 654
 655     REINITOBJ(wxRED_PEN, wxPen);
 656     REINITOBJ(wxCYAN_PEN, wxPen);
 657     REINITOBJ(wxGREEN_PEN, wxPen);
 658     REINITOBJ(wxBLACK_PEN, wxPen);
 659     REINITOBJ(wxWHITE_PEN, wxPen);
 660     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 661     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 662     REINITOBJ(wxGREY_PEN, wxPen);
 663     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 664     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 665
 666     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 667     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 668     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 669     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 670     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 671     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 672     REINITOBJ(wxRED_BRUSH, wxBrush);
 673     REINITOBJ(wxGREY_BRUSH, wxBrush);
 674     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 675     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 676
 677     REINITOBJ(wxBLACK, wxColour);
 678     REINITOBJ(wxWHITE, wxColour);
 679     REINITOBJ(wxRED, wxColour);
 680     REINITOBJ(wxBLUE, wxColour);
 681     REINITOBJ(wxGREEN, wxColour);
 682     REINITOBJ(wxCYAN, wxColour);
 683     REINITOBJ(wxLIGHT_GREY, wxColour);
 684
 685     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 686     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 687     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 688
 689     REINITOBJ2(wxNullBitmap, wxBitmap);
 690     REINITOBJ2(wxNullIcon, wxIcon);
 691     REINITOBJ2(wxNullCursor, wxCursor);
 692     REINITOBJ2(wxNullPen, wxPen);
 693     REINITOBJ2(wxNullBrush, wxBrush);
 694     REINITOBJ2(wxNullPalette, wxPalette);
 695     REINITOBJ2(wxNullFont, wxFont);
 696     REINITOBJ2(wxNullColour, wxColour);
 697
 698     REINITOBJ(wxTheFontList, wxFontList);
 699     REINITOBJ(wxThePenList, wxPenList);
 700     REINITOBJ(wxTheBrushList, wxBrushList);
 701     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 702
 703
 704     REINITOBJ(wxTheClipboard, wxClipboard);
 705     REINITOBJ2(wxDefaultValidator, wxValidator);
 706     REINITOBJ2(wxNullImage, wxImage);
 707     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 708
 709 #undef REINITOBJ
 710 #undef REINITOBJ2
 711 }
 712
 713 //---------------------------------------------------------------------------
 714
 715 void wxPyClientData_dtor(wxPyClientData* self) {
 716     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 717                                         // may have already garbage collected the object...
 718         wxPyBeginBlockThreads();
 719         Py_DECREF(self->m_obj);
 720         self->m_obj = NULL;
 721         wxPyEndBlockThreads();
 722     }
 723 }
 724
 725 void wxPyUserData_dtor(wxPyUserData* self) {
 726     if (! wxPyDoingCleanup) {
 727         wxPyBeginBlockThreads();
 728         Py_DECREF(self->m_obj);
 729         self->m_obj = NULL;
 730         wxPyEndBlockThreads();
 731     }
 732 }
 733
 734
 735 // This is called when an OOR controled object is being destroyed.  Although
 736 // the C++ object is going away there is no way to force the Python object
 737 // (and all references to it) to die too.  This causes problems (crashes) in
 738 // wxPython when a python shadow object attempts to call a C++ method using
 739 // the now bogus pointer... So to try and prevent this we'll do a little black
 740 // magic and change the class of the python instance to a class that will
 741 // raise an exception for any attempt to call methods with it.  See
 742 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 743 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 744
 745     static PyObject* deadObjectClass = NULL;
 746
 747     wxPyBeginBlockThreads();
 748     if (deadObjectClass == NULL) {
 749         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 750         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 751         // will lead to a deadlock when it tries to aquire the GIL again.
 752         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 753         Py_INCREF(deadObjectClass);
 754     }
 755
 756
 757     // Only if there is more than one reference to the object
 758     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 759         // bool isInstance = wxPyInstance_Check(self->m_obj);
 760         // TODO same here
 761         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 762
 763         // Call __del__, if there is one.
 764         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 765         if (func) {
 766             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 767             Py_XDECREF(rv);
 768             Py_DECREF(func);
 769         }
 770         if (PyErr_Occurred())
 771             PyErr_Clear();      // just ignore it for now
 772
 773
 774         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 775         if (dict) {
 776             // Clear the instance's dictionary
 777             PyDict_Clear(dict);
 778
 779             // put the name of the old class into the instance, and then reset the
 780             // class to be the dead class.
 781             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 782             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 783             PyDict_SetItemString(dict, "_name", name);
 784             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 785             //Py_INCREF(deadObjectClass);
 786             Py_DECREF(klass);
 787             Py_DECREF(name);
 788         }
 789     }
 790
 791     // m_obj is DECREF'd in the base class dtor...
 792     wxPyEndBlockThreads();
 793 }
 794
 795
 796 //---------------------------------------------------------------------------
 797 // Stuff used by OOR to find the right wxPython class type to return and to
 798 // build it.
 799
 800
 801 // The pointer type map is used when the "pointer" type name generated by SWIG
 802 // is not the same as the shadow class name, for example wxPyTreeCtrl
 803 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 804 // so we'll just make it a Python dictionary in the wx module's namespace.
 805 // (See __wxSetDictionary)
 806 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 807     if (! wxPyPtrTypeMap)
 808         wxPyPtrTypeMap = PyDict_New();
 809     PyDict_SetItemString(wxPyPtrTypeMap,
 810                          (char*)commonName,
 811                          PyString_FromString((char*)ptrName));
 812 }
 813
 814
 815
 816
 817 PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
 818     PyObject* target = NULL;
 819     bool      isEvtHandler = False;
 820
 821     if (source) {
 822         // If it's derived from wxEvtHandler then there may
 823         // already be a pointer to a Python object that we can use
 824         // in the OOR data.
 825         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 826             isEvtHandler = True;
 827             wxEvtHandler* eh = (wxEvtHandler*)source;
 828             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 829             if (data) {
 830                 target = data->m_obj;
 831                 if (target)
 832                     Py_INCREF(target);
 833             }
 834         }
 835
 836         if (! target) {
 837             // Otherwise make it the old fashioned way by making a new shadow
 838             // object and putting this pointer in it.  Look up the class
 839             // heirarchy until we find a class name that is located in the
 840             // python module.
 841             const wxClassInfo* info   = source->GetClassInfo();
 842             wxString           name   = info->GetClassName();
 843             bool               exists = wxPyCheckSwigType(name);
 844             while (info && !exists) {
 845                 info = info->GetBaseClass1();
 846                 name = info->GetClassName();
 847                 exists = wxPyCheckSwigType(name);
 848             }
 849             if (info) {
 850                 target = wxPyConstructObject((void*)source, name, False);
 851                 if (target && isEvtHandler)
 852                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
 853             } else {
 854                 wxString msg(wxT("wxPython class not found for "));
 855                 msg += source->GetClassInfo()->GetClassName();
 856                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
 857                 target = NULL;
 858             }
 859         }
 860     } else {  // source was NULL so return None.
 861         Py_INCREF(Py_None); target = Py_None;
 862     }
 863     return target;
 864 }
 865
 866
 867 PyObject*  wxPyMake_wxSizer(wxSizer* source) {
 868     PyObject* target = NULL;
 869
 870     if (source && wxIsKindOf(source, wxSizer)) {
 871         // If it's derived from wxSizer then there may already be a pointer to
 872         // a Python object that we can use in the OOR data.
 873         wxSizer* sz = (wxSizer*)source;
 874         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
 875         if (data) {
 876             target = data->m_obj;
 877             if (target)
 878                 Py_INCREF(target);
 879         }
 880     }
 881     if (! target) {
 882         target = wxPyMake_wxObject(source, False);
 883         if (target != Py_None)
 884             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
 885     }
 886     return target;
 887 }
 888
 889
 890 //---------------------------------------------------------------------------
 891
 892
 893 #ifdef WXP_WITH_THREAD
 894 inline
 895 unsigned long wxPyGetCurrentThreadId() {
 896     return wxThread::GetCurrentId();
 897 }
 898
 899 static wxPyThreadState gs_shutdownTState;
 900
 901 static
 902 wxPyThreadState* wxPyGetThreadState() {
 903     if (wxPyTMutex == NULL) // Python is shutting down...
 904         return &gs_shutdownTState;
 905
 906     unsigned long ctid = wxPyGetCurrentThreadId();
 907     wxPyThreadState* tstate = NULL;
 908
 909     wxPyTMutex->Lock();
 910     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 911         wxPyThreadState& info = wxPyTStates->Item(i);
 912         if (info.tid == ctid) {
 913             tstate = &info;
 914             break;
 915         }
 916     }
 917     wxPyTMutex->Unlock();
 918     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
 919     return tstate;
 920 }
 921
 922
 923 static
 924 void wxPySaveThreadState(PyThreadState* tstate) {
 925     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
 926         gs_shutdownTState.tstate = tstate;
 927         return;
 928     }
 929     unsigned long ctid = wxPyGetCurrentThreadId();
 930     wxPyTMutex->Lock();
 931     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 932         wxPyThreadState& info = wxPyTStates->Item(i);
 933         if (info.tid == ctid) {
 934 #if 0
 935             if (info.tstate != tstate)
 936                 wxLogMessage("*** tstate mismatch!???");
 937 #endif
 938             // info.tstate = tstate;    *** DO NOT update existing ones???
 939             // Normally it will never change, but apparently COM callbacks
 940             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
 941             // tstate which will then be garbage the next time we try to use
 942             // it...
 943             wxPyTMutex->Unlock();
 944             return;
 945         }
 946     }
 947     // not found, so add it...
 948     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
 949     wxPyTMutex->Unlock();
 950 }
 951
 952 #endif
 953
 954
 955
 956 // Calls from Python to wxWindows code are wrapped in calls to these
 957 // functions:
 958
 959 PyThreadState* wxPyBeginAllowThreads() {
 960 #ifdef WXP_WITH_THREAD
 961     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
 962     wxPySaveThreadState(saved);
 963     wxPyGetThreadState()->blocked -= 1;
 964     return saved;
 965 #else
 966     return NULL;
 967 #endif
 968 }
 969
 970 void wxPyEndAllowThreads(PyThreadState* saved) {
 971 #ifdef WXP_WITH_THREAD
 972     wxPyGetThreadState()->blocked += 1;
 973     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
 974 #endif
 975 }
 976
 977
 978
 979 // Calls from wxWindows back to Python code, or even any PyObject
 980 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
 981
 982 void wxPyBeginBlockThreads() {
 983 #ifdef WXP_WITH_THREAD
 984     wxPyThreadState* tstate = wxPyGetThreadState();
 985     if (tstate->blocked++ == 0) {  // if nested calls then do nothing
 986         PyEval_RestoreThread(tstate->tstate);
 987     }
 988 #endif
 989 }
 990
 991
 992 void wxPyEndBlockThreads() {
 993 #ifdef WXP_WITH_THREAD
 994     wxPyThreadState* tstate = wxPyGetThreadState();
 995     tstate->blocked -= 1;
 996     if ( tstate->blocked == 0) {  // if nested calls then do nothing
 997         PyEval_SaveThread();
 998     }
 999 #endif
1000 }
1001
1002
1003 //---------------------------------------------------------------------------
1004 // wxPyInputStream and wxPyCBInputStream methods
1005
1006
1007 void wxPyInputStream::close() {
1008     /* do nothing for now */
1009 }
1010
1011 void wxPyInputStream::flush() {
1012     /* do nothing for now */
1013 }
1014
1015 bool wxPyInputStream::eof() {
1016     if (m_wxis)
1017         return m_wxis->Eof();
1018     else
1019         return True;
1020 }
1021
1022 wxPyInputStream::~wxPyInputStream() {
1023     /* do nothing */
1024 }
1025
1026
1027
1028
1029 PyObject* wxPyInputStream::read(int size) {
1030     PyObject* obj = NULL;
1031     wxMemoryBuffer buf;
1032     const int BUFSIZE = 1024;
1033
1034     // check if we have a real wxInputStream to work with
1035     if (!m_wxis) {
1036         wxPyBeginBlockThreads();
1037         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1038         wxPyEndBlockThreads();
1039         return NULL;
1040     }
1041
1042     if (size < 0) {
1043         // read while bytes are available on the stream
1044         while ( m_wxis->CanRead() ) {
1045             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1046             buf.UngetAppendBuf(m_wxis->LastRead());
1047         }
1048
1049     } else {  // Read only size number of characters
1050         m_wxis->Read(buf.GetWriteBuf(size), size);
1051         buf.UngetWriteBuf(m_wxis->LastRead());
1052     }
1053
1054     // error check
1055     wxPyBeginBlockThreads();
1056     wxStreamError err = m_wxis->GetLastError();
1057     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1058         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1059     }
1060     else {
1061         // We use only strings for the streams, not unicode
1062         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1063     }
1064     wxPyEndBlockThreads();
1065     return obj;
1066 }
1067
1068
1069 PyObject* wxPyInputStream::readline(int size) {
1070     PyObject* obj = NULL;
1071     wxMemoryBuffer buf;
1072     int i;
1073     char ch;
1074
1075     // check if we have a real wxInputStream to work with
1076     if (!m_wxis) {
1077         wxPyBeginBlockThreads();
1078         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1079         wxPyEndBlockThreads();
1080         return NULL;
1081     }
1082
1083     // read until \n or byte limit reached
1084     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1085         ch = m_wxis->GetC();
1086         buf.AppendByte(ch);
1087     }
1088
1089     // errorcheck
1090     wxPyBeginBlockThreads();
1091     wxStreamError err = m_wxis->GetLastError();
1092     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1093         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1094     }
1095     else {
1096         // We use only strings for the streams, not unicode
1097         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1098     }
1099     wxPyEndBlockThreads();
1100     return obj;
1101 }
1102
1103
1104 PyObject* wxPyInputStream::readlines(int sizehint) {
1105     PyObject* pylist;
1106
1107     // check if we have a real wxInputStream to work with
1108     if (!m_wxis) {
1109         wxPyBeginBlockThreads();
1110         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1111         wxPyEndBlockThreads();
1112         return NULL;
1113     }
1114
1115     // init list
1116     wxPyBeginBlockThreads();
1117     pylist = PyList_New(0);
1118     if (!pylist) {
1119         wxPyBeginBlockThreads();
1120         PyErr_NoMemory();
1121         wxPyEndBlockThreads();
1122         return NULL;
1123     }
1124
1125     // read sizehint bytes or until EOF
1126     int i;
1127     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1128         PyObject* s = this->readline();
1129         if (s == NULL) {
1130             wxPyBeginBlockThreads();
1131             Py_DECREF(pylist);
1132             wxPyEndBlockThreads();
1133             return NULL;
1134         }
1135         wxPyBeginBlockThreads();
1136         PyList_Append(pylist, s);
1137         i += PyString_Size(s);
1138         wxPyEndBlockThreads();
1139     }
1140
1141     // error check
1142     wxStreamError err = m_wxis->GetLastError();
1143     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1144         wxPyBeginBlockThreads();
1145         Py_DECREF(pylist);
1146         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1147         wxPyEndBlockThreads();
1148         return NULL;
1149     }
1150
1151     return pylist;
1152 }
1153
1154
1155 void wxPyInputStream::seek(int offset, int whence) {
1156     if (m_wxis)
1157         m_wxis->SeekI(offset, wxSeekMode(whence));
1158 }
1159
1160 int wxPyInputStream::tell(){
1161     if (m_wxis)
1162         return m_wxis->TellI();
1163     else return 0;
1164 }
1165
1166
1167
1168
1169 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1170     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1171 {}
1172
1173
1174 wxPyCBInputStream::~wxPyCBInputStream() {
1175     if (m_block) wxPyBeginBlockThreads();
1176     Py_XDECREF(m_read);
1177     Py_XDECREF(m_seek);
1178     Py_XDECREF(m_tell);
1179     if (m_block) wxPyEndBlockThreads();
1180 }
1181
1182
1183 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1184     if (block) wxPyBeginBlockThreads();
1185
1186     PyObject* read = getMethod(py, "read");
1187     PyObject* seek = getMethod(py, "seek");
1188     PyObject* tell = getMethod(py, "tell");
1189
1190     if (!read) {
1191         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1192         Py_XDECREF(read);
1193         Py_XDECREF(seek);
1194         Py_XDECREF(tell);
1195         if (block) wxPyEndBlockThreads();
1196         return NULL;
1197     }
1198
1199     if (block) wxPyEndBlockThreads();
1200     return new wxPyCBInputStream(read, seek, tell, block);
1201 }
1202
1203
1204 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1205     return wxPyCBInputStream::create(py, block);
1206 }
1207
1208 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1209     if (!PyObject_HasAttrString(py, name))
1210         return NULL;
1211     PyObject* o = PyObject_GetAttrString(py, name);
1212     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1213         Py_DECREF(o);
1214         return NULL;
1215     }
1216     return o;
1217 }
1218
1219
1220 size_t wxPyCBInputStream::GetSize() const {
1221     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1222     if (m_seek && m_tell) {
1223         off_t temp = self->OnSysTell();
1224         off_t ret = self->OnSysSeek(0, wxFromEnd);
1225         self->OnSysSeek(temp, wxFromStart);
1226         return ret;
1227     }
1228     else
1229         return 0;
1230 }
1231
1232
1233 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1234     if (bufsize == 0)
1235         return 0;
1236
1237     wxPyBeginBlockThreads();
1238     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1239     PyObject* result = PyEval_CallObject(m_read, arglist);
1240     Py_DECREF(arglist);
1241
1242     size_t o = 0;
1243     if ((result != NULL) && PyString_Check(result)) {
1244         o = PyString_Size(result);
1245         if (o == 0)
1246             m_lasterror = wxSTREAM_EOF;
1247         if (o > bufsize)
1248             o = bufsize;
1249         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1250         Py_DECREF(result);
1251
1252     }
1253     else
1254         m_lasterror = wxSTREAM_READ_ERROR;
1255     wxPyEndBlockThreads();
1256     return o;
1257 }
1258
1259 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1260     m_lasterror = wxSTREAM_WRITE_ERROR;
1261     return 0;
1262 }
1263
1264 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
1265     wxPyBeginBlockThreads();
1266 #ifdef _LARGE_FILES
1267     // off_t is a 64-bit value...
1268     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
1269 #else
1270     PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1271 #endif
1272     PyObject* result = PyEval_CallObject(m_seek, arglist);
1273     Py_DECREF(arglist);
1274     Py_XDECREF(result);
1275     wxPyEndBlockThreads();
1276     return OnSysTell();
1277 }
1278
1279
1280 off_t wxPyCBInputStream::OnSysTell() const {
1281     wxPyBeginBlockThreads();
1282     PyObject* arglist = Py_BuildValue("()");
1283     PyObject* result = PyEval_CallObject(m_tell, arglist);
1284     Py_DECREF(arglist);
1285     off_t o = 0;
1286     if (result != NULL) {
1287 #ifdef _LARGE_FILES
1288         if (PyLong_Check(result))
1289             o = PyLong_AsLongLong(result);
1290         else
1291 #endif
1292             o = PyInt_AsLong(result);
1293         Py_DECREF(result);
1294     };
1295     wxPyEndBlockThreads();
1296     return o;
1297 }
1298
1299 //----------------------------------------------------------------------
1300
1301 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1302
1303 wxPyCallback::wxPyCallback(PyObject* func) {
1304     m_func = func;
1305     Py_INCREF(m_func);
1306 }
1307
1308 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1309     m_func = other.m_func;
1310     Py_INCREF(m_func);
1311 }
1312
1313 wxPyCallback::~wxPyCallback() {
1314     wxPyBeginBlockThreads();
1315     Py_DECREF(m_func);
1316     wxPyEndBlockThreads();
1317 }
1318
1319
1320
1321 // This function is used for all events destined for Python event handlers.
1322 void wxPyCallback::EventThunker(wxEvent& event) {
1323     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1324     PyObject*       func = cb->m_func;
1325     PyObject*       result;
1326     PyObject*       arg;
1327     PyObject*       tuple;
1328     bool            checkSkip = False;
1329
1330     wxPyBeginBlockThreads();
1331     wxString className = event.GetClassInfo()->GetClassName();
1332
1333     // If the event is one of these types then pass the original
1334     // event object instead of the one passed to us.
1335     if ( className == wxT("wxPyEvent") ) {
1336         arg =       ((wxPyEvent*)&event)->GetSelf();
1337         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1338     }
1339     else if ( className == wxT("wxPyCommandEvent") ) {
1340         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1341         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1342     }
1343     else {
1344         arg = wxPyConstructObject((void*)&event, className);
1345     }
1346
1347     if (!arg) {
1348         PyErr_Print();
1349     } else {
1350         // Call the event handler, passing the event object
1351         tuple = PyTuple_New(1);
1352         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1353         result = PyEval_CallObject(func, tuple);
1354         if ( result ) {
1355             Py_DECREF(result);   // result is ignored, but we still need to decref it
1356             PyErr_Clear();       // Just in case...
1357         } else {
1358             PyErr_Print();
1359         }
1360
1361         if ( checkSkip ) {
1362             // if the event object was one of our special types and
1363             // it had been cloned, then we need to extract the Skipped
1364             // value from the original and set it in the clone.
1365             result = PyObject_CallMethod(arg, "GetSkipped", "");
1366             if ( result ) {
1367                 event.Skip(PyInt_AsLong(result));
1368                 Py_DECREF(result);
1369             } else {
1370                 PyErr_Print();
1371             }
1372         }
1373         Py_DECREF(tuple);
1374     }
1375     wxPyEndBlockThreads();
1376 }
1377
1378
1379 //----------------------------------------------------------------------
1380
1381 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1382       m_lastFound = NULL;
1383       m_self = other.m_self;
1384       m_class = other.m_class;
1385       if (m_self) {
1386           Py_INCREF(m_self);
1387           Py_INCREF(m_class);
1388       }
1389 }
1390
1391
1392 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1393     m_self = self;
1394     m_class = klass;
1395     m_incRef = incref;
1396     if (incref) {
1397         Py_INCREF(m_self);
1398         Py_INCREF(m_class);
1399     }
1400 }
1401
1402
1403 #if PYTHON_API_VERSION >= 1011
1404
1405 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1406 // in which the method was defined.  Starting with 2.2 it returns
1407 // "class that asked for the method" which seems totally bogus to me
1408 // but apprently it fixes some obscure problem waiting to happen in
1409 // Python.  Since the API was not documented Guido and the gang felt
1410 // safe in changing it.  Needless to say that totally screwed up the
1411 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1412 // code to find the class where the method is actually defined...
1413
1414 static
1415 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1416 {
1417     int i, n;
1418
1419     if (PyType_Check(klass)) {      // new style classes
1420         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1421         PyTypeObject* type = (PyTypeObject*)klass;
1422         PyObject *mro, *res, *base, *dict;
1423         /* Look in tp_dict of types in MRO */
1424         mro = type->tp_mro;
1425         assert(PyTuple_Check(mro));
1426         n = PyTuple_GET_SIZE(mro);
1427         for (i = 0; i < n; i++) {
1428             base = PyTuple_GET_ITEM(mro, i);
1429             if (PyClass_Check(base))
1430                 dict = ((PyClassObject *)base)->cl_dict;
1431             else {
1432                 assert(PyType_Check(base));
1433                 dict = ((PyTypeObject *)base)->tp_dict;
1434             }
1435             assert(dict && PyDict_Check(dict));
1436             res = PyDict_GetItem(dict, name);
1437             if (res != NULL)
1438                 return base;
1439         }
1440         return NULL;
1441     }
1442
1443     else if (PyClass_Check(klass)) { // old style classes
1444         // This code is borrowed/adapted from class_lookup in classobject.c
1445         PyClassObject* cp = (PyClassObject*)klass;
1446         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1447         if (value != NULL) {
1448             return (PyObject*)cp;
1449         }
1450         n = PyTuple_Size(cp->cl_bases);
1451         for (i = 0; i < n; i++) {
1452             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1453             PyObject *v = PyFindClassWithAttr(base, name);
1454             if (v != NULL)
1455                 return v;
1456         }
1457         return NULL;
1458     }
1459     return NULL;
1460 }
1461 #endif
1462
1463
1464 static
1465 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1466 {
1467     PyObject* mgc = PyMethod_GET_CLASS(method);
1468
1469 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1470     return mgc;
1471 #else                             // 2.2 and after, the hard way...
1472
1473     PyObject* nameo = PyString_FromString(name);
1474     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1475     Py_DECREF(nameo);
1476     return klass;
1477 #endif
1478 }
1479
1480
1481
1482 bool wxPyCallbackHelper::findCallback(const char* name) const {
1483     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1484     self->m_lastFound = NULL;
1485
1486     // If the object (m_self) has an attibute of the given name...
1487     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1488         PyObject *method, *klass;
1489         method = PyObject_GetAttrString(m_self, (char*)name);
1490
1491         // ...and if that attribute is a method, and if that method's class is
1492         // not from a base class...
1493         if (PyMethod_Check(method) &&
1494             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1495             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1496
1497             // ...then we'll save a pointer to the method so callCallback can call it.
1498             self->m_lastFound = method;
1499         }
1500         else {
1501             Py_DECREF(method);
1502         }
1503     }
1504     return m_lastFound != NULL;
1505 }
1506
1507
1508 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1509     PyObject*   result;
1510     int         retval = False;
1511
1512     result = callCallbackObj(argTuple);
1513     if (result) {                       // Assumes an integer return type...
1514         retval = PyInt_AsLong(result);
1515         Py_DECREF(result);
1516         PyErr_Clear();                  // forget about it if it's not...
1517     }
1518     return retval;
1519 }
1520
1521 // Invoke the Python callable object, returning the raw PyObject return
1522 // value.  Caller should DECREF the return value and also manage the GIL.
1523 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1524     PyObject* result;
1525
1526     // Save a copy of the pointer in case the callback generates another
1527     // callback.  In that case m_lastFound will have a different value when
1528     // it gets back here...
1529     PyObject* method = m_lastFound;
1530
1531     result = PyEval_CallObject(method, argTuple);
1532     Py_DECREF(argTuple);
1533     Py_DECREF(method);
1534     if (!result) {
1535         PyErr_Print();
1536     }
1537     return result;
1538 }
1539
1540
1541 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1542     cbh.setSelf(self, klass, incref);
1543 }
1544
1545 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1546     return cbh.findCallback(name);
1547 }
1548
1549 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1550     return cbh.callCallback(argTuple);
1551 }
1552
1553 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1554     return cbh.callCallbackObj(argTuple);
1555 }
1556
1557
1558 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1559     if (cbh->m_incRef) {
1560         wxPyBeginBlockThreads();
1561         Py_XDECREF(cbh->m_self);
1562         Py_XDECREF(cbh->m_class);
1563         wxPyEndBlockThreads();
1564     }
1565 }
1566
1567 //---------------------------------------------------------------------------
1568 //---------------------------------------------------------------------------
1569 // These event classes can be derived from in Python and passed through the event
1570 // system without losing anything.  They do this by keeping a reference to
1571 // themselves and some special case handling in wxPyCallback::EventThunker.
1572
1573
1574 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1575     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1576     //Py_INCREF(m_self);        //      circular loops...
1577     m_cloned = False;
1578 }
1579
1580 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1581     wxPyBeginBlockThreads();
1582     if (m_cloned)
1583         Py_DECREF(m_self);
1584     wxPyEndBlockThreads();
1585 }
1586
1587 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1588     wxPyBeginBlockThreads();
1589     if (m_cloned)
1590         Py_DECREF(m_self);
1591     m_self = self;
1592     if (clone) {
1593         Py_INCREF(m_self);
1594         m_cloned = True;
1595     }
1596     wxPyEndBlockThreads();
1597 }
1598
1599 PyObject* wxPyEvtSelfRef::GetSelf() const {
1600     Py_INCREF(m_self);
1601     return m_self;
1602 }
1603
1604
1605 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1606 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1607
1608
1609 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1610     : wxEvent(winid, commandType) {
1611 }
1612
1613
1614 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1615     : wxEvent(evt)
1616 {
1617     SetSelf(evt.m_self, True);
1618 }
1619
1620
1621 wxPyEvent::~wxPyEvent() {
1622 }
1623
1624
1625 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1626     : wxCommandEvent(commandType, id) {
1627 }
1628
1629
1630 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1631     : wxCommandEvent(evt)
1632 {
1633     SetSelf(evt.m_self, True);
1634 }
1635
1636
1637 wxPyCommandEvent::~wxPyCommandEvent() {
1638 }
1639
1640
1641
1642
1643
1644 //---------------------------------------------------------------------------
1645 //---------------------------------------------------------------------------
1646 // Convert a wxList to a Python List, only works for lists of wxObjects
1647
1648 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1649     wxList*     list = (wxList*)listbase;  // this is probably bad...
1650     PyObject*   pyList;
1651     PyObject*   pyObj;
1652     wxObject*   wxObj;
1653     wxNode*     node = list->GetFirst();
1654
1655     wxPyBeginBlockThreads();
1656     pyList = PyList_New(0);
1657     while (node) {
1658         wxObj = node->GetData();
1659         pyObj = wxPyMake_wxObject(wxObj);
1660         PyList_Append(pyList, pyObj);
1661         node = node->GetNext();
1662     }
1663     wxPyEndBlockThreads();
1664     return pyList;
1665 }
1666
1667 //----------------------------------------------------------------------
1668
1669 long wxPyGetWinHandle(wxWindow* win) {
1670 #ifdef __WXMSW__
1671     return (long)win->GetHandle();
1672 #endif
1673
1674     // Find and return the actual X-Window.
1675 #ifdef __WXGTK__
1676     if (win->m_wxwindow) {
1677 #ifdef __WXGTK20__
1678         return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window);
1679 #else
1680         GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1681         if (bwin) {
1682             return (long)bwin->xwindow;
1683         }
1684 #endif
1685     }
1686 #endif
1687     return 0;
1688 }
1689
1690 //----------------------------------------------------------------------
1691 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1692 // included in every file over and over again...
1693
1694 #if PYTHON_API_VERSION >= 1009
1695     static char* wxStringErrorMsg = "String or Unicode type required";
1696 #else
1697     static char* wxStringErrorMsg = "String type required";
1698 #endif
1699
1700
1701 wxString* wxString_in_helper(PyObject* source) {
1702     wxString* target;
1703 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1704     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1705         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1706         return NULL;
1707     }
1708 #if wxUSE_UNICODE
1709     if (PyUnicode_Check(source)) {
1710         target = new wxString();
1711         size_t len = PyUnicode_GET_SIZE(source);
1712         if (len) {
1713             PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len);
1714             target->UngetWriteBuf();
1715         }
1716     } else {
1717         // It is a string, get pointers to it and transform to unicode
1718         char* tmpPtr; int tmpSize;
1719         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1720         target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1721     }
1722 #else
1723     char* tmpPtr; int tmpSize;
1724     if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1725         PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1726         return NULL;
1727     }
1728     target = new wxString(tmpPtr, tmpSize);
1729 #endif // wxUSE_UNICODE
1730
1731 #else  // No Python unicode API (1.5.2)
1732     if (!PyString_Check(source)) {
1733         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1734         return NULL;
1735     }
1736     target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1737 #endif
1738     return target;
1739 }
1740
1741
1742 // Similar to above except doesn't use "new" and doesn't set an exception
1743 wxString Py2wxString(PyObject* source)
1744 {
1745     wxString target;
1746     bool     doDecRef = False;
1747
1748 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1749     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1750         // Convert to String if not one already...  (TODO: Unicode too?)
1751         source = PyObject_Str(source);
1752         doDecRef = True;
1753     }
1754
1755 #if wxUSE_UNICODE
1756     if (PyUnicode_Check(source)) {
1757         size_t len = PyUnicode_GET_SIZE(source);
1758         if (len) {
1759             PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len);
1760             target.UngetWriteBuf();
1761         }
1762     } else {
1763         // It is a string, get pointers to it and transform to unicode
1764         char* tmpPtr; int tmpSize;
1765         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1766         target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1767     }
1768 #else
1769     char* tmpPtr; int tmpSize;
1770     PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1771     target = wxString(tmpPtr, tmpSize);
1772 #endif // wxUSE_UNICODE
1773
1774 #else  // No Python unicode API (1.5.2)
1775     if (!PyString_Check(source)) {
1776         // Convert to String if not one already...
1777         source = PyObject_Str(source);
1778         doDecRef = True;
1779     }
1780     target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1781 #endif
1782
1783     if (doDecRef)
1784         Py_DECREF(source);
1785     return target;
1786 }
1787
1788
1789 // Make either a Python String or Unicode object, depending on build mode
1790 PyObject* wx2PyString(const wxString& src)
1791 {
1792     PyObject* str;
1793 #if wxUSE_UNICODE
1794     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1795 #else
1796     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1797 #endif
1798     return str;
1799 }
1800
1801
1802 //----------------------------------------------------------------------
1803
1804
1805 byte* byte_LIST_helper(PyObject* source) {
1806     if (!PyList_Check(source)) {
1807         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1808         return NULL;
1809     }
1810     int count = PyList_Size(source);
1811     byte* temp = new byte[count];
1812     if (! temp) {
1813         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1814         return NULL;
1815     }
1816     for (int x=0; x<count; x++) {
1817         PyObject* o = PyList_GetItem(source, x);
1818         if (! PyInt_Check(o)) {
1819             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1820             return NULL;
1821         }
1822         temp[x] = (byte)PyInt_AsLong(o);
1823     }
1824     return temp;
1825 }
1826
1827
1828 int* int_LIST_helper(PyObject* source) {
1829     if (!PyList_Check(source)) {
1830         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1831         return NULL;
1832     }
1833     int count = PyList_Size(source);
1834     int* temp = new int[count];
1835     if (! temp) {
1836         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1837         return NULL;
1838     }
1839     for (int x=0; x<count; x++) {
1840         PyObject* o = PyList_GetItem(source, x);
1841         if (! PyInt_Check(o)) {
1842             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1843             return NULL;
1844         }
1845         temp[x] = PyInt_AsLong(o);
1846     }
1847     return temp;
1848 }
1849
1850
1851 long* long_LIST_helper(PyObject* source) {
1852     if (!PyList_Check(source)) {
1853         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1854         return NULL;
1855     }
1856     int count = PyList_Size(source);
1857     long* temp = new long[count];
1858     if (! temp) {
1859         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1860         return NULL;
1861     }
1862     for (int x=0; x<count; x++) {
1863         PyObject* o = PyList_GetItem(source, x);
1864         if (! PyInt_Check(o)) {
1865             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1866             return NULL;
1867         }
1868         temp[x] = PyInt_AsLong(o);
1869     }
1870     return temp;
1871 }
1872
1873
1874 char** string_LIST_helper(PyObject* source) {
1875     if (!PyList_Check(source)) {
1876         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1877         return NULL;
1878     }
1879     int count = PyList_Size(source);
1880     char** temp = new char*[count];
1881     if (! temp) {
1882         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1883         return NULL;
1884     }
1885     for (int x=0; x<count; x++) {
1886         PyObject* o = PyList_GetItem(source, x);
1887         if (! PyString_Check(o)) {
1888             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1889             return NULL;
1890         }
1891         temp[x] = PyString_AsString(o);
1892     }
1893     return temp;
1894 }
1895
1896 //--------------------------------
1897 // Part of patch from Tim Hochberg
1898 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1899     if (PyInt_Check(o1) && PyInt_Check(o2)) {
1900         point->x = PyInt_AS_LONG(o1);
1901         point->y = PyInt_AS_LONG(o2);
1902         return True;
1903     }
1904     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1905         point->x = (int)PyFloat_AS_DOUBLE(o1);
1906         point->y = (int)PyFloat_AS_DOUBLE(o2);
1907         return True;
1908     }
1909     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
1910         // Disallow instances because they can cause havok
1911         return False;
1912     }
1913     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1914         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1915         point->x = PyInt_AsLong(o1);
1916         point->y = PyInt_AsLong(o2);
1917         return True;
1918     }
1919     return False;
1920 }
1921
1922
1923 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1924     // Putting all of the declarations here allows
1925     // us to put the error handling all in one place.
1926     int x;
1927     wxPoint* temp;
1928     PyObject *o, *o1, *o2;
1929     bool isFast = PyList_Check(source) || PyTuple_Check(source);
1930
1931     if (!PySequence_Check(source)) {
1932         goto error0;
1933     }
1934
1935     // The length of the sequence is returned in count.
1936     *count = PySequence_Length(source);
1937     if (*count < 0) {
1938         goto error0;
1939     }
1940
1941     temp = new wxPoint[*count];
1942     if (!temp) {
1943         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1944         return NULL;
1945     }
1946     for (x=0; x<*count; x++) {
1947         // Get an item: try fast way first.
1948         if (isFast) {
1949             o = PySequence_Fast_GET_ITEM(source, x);
1950         }
1951         else {
1952             o = PySequence_GetItem(source, x);
1953             if (o == NULL) {
1954                 goto error1;
1955             }
1956         }
1957
1958         // Convert o to wxPoint.
1959         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1960             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1961             o1 = PySequence_Fast_GET_ITEM(o, 0);
1962             o2 = PySequence_Fast_GET_ITEM(o, 1);
1963             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1964                 goto error2;
1965             }
1966         }
1967         else if (wxPySwigInstance_Check(o)) {
1968             wxPoint* pt;
1969             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
1970                 goto error2;
1971             }
1972             temp[x] = *pt;
1973         }
1974         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1975             o1 = PySequence_GetItem(o, 0);
1976             o2 = PySequence_GetItem(o, 1);
1977             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1978                 goto error3;
1979             }
1980             Py_DECREF(o1);
1981             Py_DECREF(o2);
1982         }
1983         else {
1984             goto error2;
1985         }
1986         // Clean up.
1987         if (!isFast)
1988             Py_DECREF(o);
1989     }
1990     return temp;
1991
1992 error3:
1993     Py_DECREF(o1);
1994     Py_DECREF(o2);
1995 error2:
1996     if (!isFast)
1997         Py_DECREF(o);
1998 error1:
1999     delete [] temp;
2000 error0:
2001     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2002     return NULL;
2003 }
2004 // end of patch
2005 //------------------------------
2006
2007
2008 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2009     if (!PyList_Check(source)) {
2010         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2011         return NULL;
2012     }
2013     int count = PyList_Size(source);
2014     wxBitmap** temp = new wxBitmap*[count];
2015     if (! temp) {
2016         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2017         return NULL;
2018     }
2019     for (int x=0; x<count; x++) {
2020         PyObject* o = PyList_GetItem(source, x);
2021         if (wxPySwigInstance_Check(o)) {
2022             wxBitmap*    pt;
2023             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2024                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2025                 return NULL;
2026             }
2027             temp[x] = pt;
2028         }
2029         else {
2030             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2031             return NULL;
2032         }
2033     }
2034     return temp;
2035 }
2036
2037
2038
2039 wxString* wxString_LIST_helper(PyObject* source) {
2040     if (!PyList_Check(source)) {
2041         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2042         return NULL;
2043     }
2044     int count = PyList_Size(source);
2045     wxString* temp = new wxString[count];
2046     if (! temp) {
2047         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2048         return NULL;
2049     }
2050     for (int x=0; x<count; x++) {
2051         PyObject* o = PyList_GetItem(source, x);
2052 #if PYTHON_API_VERSION >= 1009
2053         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2054             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2055             return NULL;
2056         }
2057 #else
2058         if (! PyString_Check(o)) {
2059             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2060             return NULL;
2061         }
2062 #endif
2063
2064         wxString* pStr = wxString_in_helper(o);
2065         temp[x] = *pStr;
2066         delete pStr;
2067     }
2068     return temp;
2069 }
2070
2071
2072 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2073     if (!PyList_Check(source)) {
2074         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2075         return NULL;
2076     }
2077     int count                = PyList_Size(source);
2078     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2079     if (! temp) {
2080         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2081         return NULL;
2082     }
2083     for (int x=0; x<count; x++) {
2084         PyObject* o = PyList_GetItem(source, x);
2085         if (wxPySwigInstance_Check(o)) {
2086             wxAcceleratorEntry* ae;
2087             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2088                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2089                 return NULL;
2090             }
2091             temp[x] = *ae;
2092         }
2093         else if (PyTuple_Check(o)) {
2094             PyObject* o1 = PyTuple_GetItem(o, 0);
2095             PyObject* o2 = PyTuple_GetItem(o, 1);
2096             PyObject* o3 = PyTuple_GetItem(o, 2);
2097             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2098         }
2099         else {
2100             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2101             return NULL;
2102         }
2103     }
2104     return temp;
2105 }
2106
2107
2108 wxPen** wxPen_LIST_helper(PyObject* source) {
2109     if (!PyList_Check(source)) {
2110         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2111         return NULL;
2112     }
2113     int count = PyList_Size(source);
2114     wxPen** temp = new wxPen*[count];
2115     if (!temp) {
2116         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2117         return NULL;
2118     }
2119     for (int x=0; x<count; x++) {
2120         PyObject* o = PyList_GetItem(source, x);
2121         if (wxPySwigInstance_Check(o)) {
2122             wxPen*  pt;
2123             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2124                 delete temp;
2125                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2126                 return NULL;
2127             }
2128             temp[x] = pt;
2129         }
2130         else {
2131             delete temp;
2132             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2133             return NULL;
2134         }
2135     }
2136     return temp;
2137 }
2138
2139
2140 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2141     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2142     PyObject *o1, *o2;
2143
2144     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2145         return False;
2146
2147     if (isFast) {
2148         o1 = PySequence_Fast_GET_ITEM(source, 0);
2149         o2 = PySequence_Fast_GET_ITEM(source, 1);
2150     }
2151     else {
2152         o1 = PySequence_GetItem(source, 0);
2153         o2 = PySequence_GetItem(source, 1);
2154     }
2155
2156     *i1 = PyInt_AsLong(o1);
2157     *i2 = PyInt_AsLong(o2);
2158
2159     if (! isFast) {
2160         Py_DECREF(o1);
2161         Py_DECREF(o2);
2162     }
2163     return True;
2164 }
2165
2166
2167 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2168     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2169     PyObject *o1, *o2, *o3, *o4;
2170
2171     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2172         return False;
2173
2174     if (isFast) {
2175         o1 = PySequence_Fast_GET_ITEM(source, 0);
2176         o2 = PySequence_Fast_GET_ITEM(source, 1);
2177         o3 = PySequence_Fast_GET_ITEM(source, 2);
2178         o4 = PySequence_Fast_GET_ITEM(source, 3);
2179     }
2180     else {
2181         o1 = PySequence_GetItem(source, 0);
2182         o2 = PySequence_GetItem(source, 1);
2183         o3 = PySequence_GetItem(source, 2);
2184         o4 = PySequence_GetItem(source, 3);
2185     }
2186
2187     *i1 = PyInt_AsLong(o1);
2188     *i2 = PyInt_AsLong(o2);
2189     *i3 = PyInt_AsLong(o3);
2190     *i4 = PyInt_AsLong(o4);
2191
2192     if (! isFast) {
2193         Py_DECREF(o1);
2194         Py_DECREF(o2);
2195         Py_DECREF(o3);
2196         Py_DECREF(o4);
2197     }
2198     return True;
2199 }
2200
2201
2202 //----------------------------------------------------------------------
2203
2204 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2205 {
2206     void* ptr;
2207
2208     if (wxPySwigInstance_Check(source) &&
2209         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2210         return True;
2211
2212     PyErr_Clear();
2213     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2214         return True;
2215
2216     return False;
2217 }
2218
2219 bool wxSize_helper(PyObject* source, wxSize** obj)
2220 {
2221     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2222 }
2223
2224
2225 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2226 {
2227     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2228 }
2229
2230
2231
2232 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2233
2234     // If source is an object instance then it may already be the right type
2235     if (wxPySwigInstance_Check(source)) {
2236         wxRealPoint* ptr;
2237         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2238             goto error;
2239         *obj = ptr;
2240         return True;
2241     }
2242     // otherwise a 2-tuple of floats is expected
2243     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2244         PyObject* o1 = PySequence_GetItem(source, 0);
2245         PyObject* o2 = PySequence_GetItem(source, 1);
2246         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2247             Py_DECREF(o1);
2248             Py_DECREF(o2);
2249             goto error;
2250         }
2251         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2252         Py_DECREF(o1);
2253         Py_DECREF(o2);
2254         return True;
2255     }
2256
2257  error:
2258     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2259     return False;
2260 }
2261
2262
2263
2264 bool wxRect_helper(PyObject* source, wxRect** obj) {
2265
2266     // If source is an object instance then it may already be the right type
2267     if (wxPySwigInstance_Check(source)) {
2268         wxRect* ptr;
2269         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2270             goto error;
2271         *obj = ptr;
2272         return True;
2273     }
2274     // otherwise a 4-tuple of integers is expected
2275     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2276         PyObject* o1 = PySequence_GetItem(source, 0);
2277         PyObject* o2 = PySequence_GetItem(source, 1);
2278         PyObject* o3 = PySequence_GetItem(source, 2);
2279         PyObject* o4 = PySequence_GetItem(source, 3);
2280         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2281             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2282             Py_DECREF(o1);
2283             Py_DECREF(o2);
2284             Py_DECREF(o3);
2285             Py_DECREF(o4);
2286             goto error;
2287         }
2288         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2289                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2290         Py_DECREF(o1);
2291         Py_DECREF(o2);
2292         Py_DECREF(o3);
2293         Py_DECREF(o4);
2294         return True;
2295     }
2296
2297  error:
2298     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2299     return False;
2300 }
2301
2302
2303
2304 bool wxColour_helper(PyObject* source, wxColour** obj) {
2305
2306     // If source is an object instance then it may already be the right type
2307     if (wxPySwigInstance_Check(source)) {
2308         wxColour* ptr;
2309         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2310             goto error;
2311         *obj = ptr;
2312         return True;
2313     }
2314     // otherwise check for a string
2315     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2316         wxString spec = Py2wxString(source);
2317         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2318             long red, green, blue;
2319             red = green = blue = 0;
2320             spec.Mid(1,2).ToLong(&red,   16);
2321             spec.Mid(3,2).ToLong(&green, 16);
2322             spec.Mid(5,2).ToLong(&blue,  16);
2323
2324             **obj = wxColour(red, green, blue);
2325             return True;
2326         }
2327         else {                                       // it's a colour name
2328             **obj = wxColour(spec);
2329             return True;
2330         }
2331     }
2332     // last chance: 3-tuple of integers is expected
2333     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2334         PyObject* o1 = PySequence_GetItem(source, 0);
2335         PyObject* o2 = PySequence_GetItem(source, 1);
2336         PyObject* o3 = PySequence_GetItem(source, 2);
2337         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2338             Py_DECREF(o1);
2339             Py_DECREF(o2);
2340             Py_DECREF(o3);
2341             goto error;
2342         }
2343         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2344         Py_DECREF(o1);
2345         Py_DECREF(o2);
2346         Py_DECREF(o3);
2347         return True;
2348     }
2349
2350  error:
2351     PyErr_SetString(PyExc_TypeError,
2352                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2353     return False;
2354 }
2355
2356
2357 bool wxColour_typecheck(PyObject* source) {
2358
2359     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2360         return True;
2361
2362     if (PyString_Check(source) || PyUnicode_Check(source))
2363         return True;
2364
2365     return False;
2366 }
2367
2368
2369
2370 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2371     // If source is an object instance then it may already be the right type
2372     if (wxPySwigInstance_Check(source)) {
2373         wxPoint2D* ptr;
2374         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2375             goto error;
2376         *obj = ptr;
2377         return True;
2378     }
2379     // otherwise a length-2 sequence of floats is expected
2380     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2381         PyObject* o1 = PySequence_GetItem(source, 0);
2382         PyObject* o2 = PySequence_GetItem(source, 1);
2383         // This should really check for floats, not numbers -- but that would break code.
2384         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2385             Py_DECREF(o1);
2386             Py_DECREF(o2);
2387             goto error;
2388         }
2389         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2390         Py_DECREF(o1);
2391         Py_DECREF(o2);
2392         return True;
2393     }
2394  error:
2395     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2396     return False;
2397 }
2398
2399
2400 //----------------------------------------------------------------------
2401
2402 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2403
2404     PyObject* list = PyList_New(0);
2405     for (size_t i=0; i < arr.GetCount(); i++) {
2406 #if wxUSE_UNICODE
2407         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2408 #else
2409         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2410 #endif
2411         PyList_Append(list, str);
2412         Py_DECREF(str);
2413     }
2414     return list;
2415 }
2416
2417
2418 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2419
2420     PyObject* list = PyList_New(0);
2421     for (size_t i=0; i < arr.GetCount(); i++) {
2422         PyObject* number = PyInt_FromLong(arr[i]);
2423         PyList_Append(list, number);
2424         Py_DECREF(number);
2425     }
2426     return list;
2427 }
2428
2429
2430 //----------------------------------------------------------------------
2431 //----------------------------------------------------------------------
2432
2433
2434
2435