wxPython/src/helpers.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        helpers.cpp
   3 // Purpose:     Helper functions/classes for the wxPython extension module
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     7/1/97
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13
  14 #undef DEBUG
  15 #include <Python.h>
  16 #include "helpers.h"
  17 #include "pyistream.h"
  18
  19 #ifdef __WXMSW__
  20 #include <wx/msw/private.h>
  21 #include <wx/msw/winundef.h>
  22 #include <wx/msw/msvcrt.h>
  23 #endif
  24
  25 #ifdef __WXGTK__
  26 #include <gtk/gtk.h>
  27 #include <gdk/gdkprivate.h>
  28 #include <wx/gtk/win_gtk.h>
  29 #endif
  30
  31 #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
  53     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  54         : tid(_tid), tstate(_tstate) {}
  55 };
  56
  57 #include <wx/dynarray.h>
  58 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  59 #include <wx/arrimpl.cpp>
  60 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  61
  62 wxPyThreadStateArray* wxPyTStates = NULL;
  63 wxMutex*              wxPyTMutex = NULL;
  64 #endif
  65
  66
  67 static PyObject* wxPython_dict = NULL;
  68 static PyObject* wxPyPtrTypeMap = NULL;
  69 static PyObject* wxPyAssertionError = NULL;
  70
  71
  72 #ifdef __WXMSW__             // If building for win32...
  73 //----------------------------------------------------------------------
  74 // This gets run when the DLL is loaded.  We just need to save a handle.
  75 //----------------------------------------------------------------------
  76
  77 BOOL WINAPI DllMain(
  78     HINSTANCE   hinstDLL,    // handle to DLL module
  79     DWORD       fdwReason,   // reason for calling function
  80     LPVOID      lpvReserved  // reserved
  81    )
  82 {
  83     // If wxPython is embedded in another wxWindows app then
  84     // the inatance has already been set.
  85     if (! wxGetInstance())
  86         wxSetInstance(hinstDLL);
  87     return TRUE;
  88 }
  89 #endif
  90
  91 //----------------------------------------------------------------------
  92 // Classes for implementing the wxp main application shell.
  93 //----------------------------------------------------------------------
  94
  95 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
  96
  97
  98 wxPyApp::wxPyApp() {
  99     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 100 }
 101
 102
 103 wxPyApp::~wxPyApp() {
 104 }
 105
 106
 107 // This one isn't acutally called...  We fake it with __wxStart()
 108 bool wxPyApp::OnInit() {
 109     return FALSE;
 110 }
 111
 112
 113 int  wxPyApp::MainLoop() {
 114     int retval = 0;
 115
 116     DeletePendingObjects();
 117     bool initialized = wxTopLevelWindows.GetCount() != 0;
 118
 119     if (initialized) {
 120         if ( m_exitOnFrameDelete == Later ) {
 121             m_exitOnFrameDelete = Yes;
 122         }
 123
 124         retval = wxApp::MainLoop();
 125         OnExit();
 126     }
 127     return retval;
 128 }
 129
 130
 131 bool wxPyApp::OnInitGui() {
 132     bool rval=TRUE;
 133     wxApp::OnInitGui();  // in this case always call the base class version
 134     // wxPyBeginBlockThreads();  *** only called from within __wxStart so we already have the GIL
 135     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 136         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 137     // wxPyEndBlockThreads();    ***
 138     return rval;
 139 }
 140
 141
 142 int wxPyApp::OnExit() {
 143     int rval=0;
 144     wxPyBeginBlockThreads();
 145     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 146         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 147     wxPyEndBlockThreads();
 148     wxApp::OnExit();  // in this case always call the base class version
 149     return rval;
 150 }
 151
 152
 153 #ifdef __WXDEBUG__
 154 void wxPyApp::OnAssert(const wxChar *file,
 155                      int line,
 156                      const wxChar *cond,
 157                      const wxChar *msg) {
 158
 159     // If the OnAssert is overloaded in the Python class then call it...
 160     bool found;
 161     wxPyBeginBlockThreads();
 162     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 163         PyObject* fso = wx2PyString(file);
 164         PyObject* cso = wx2PyString(file);
 165         PyObject* mso;
 166         if (msg != NULL)
 167             mso = wx2PyString(file);
 168         else {
 169             mso = Py_None; Py_INCREF(Py_None);
 170         }
 171         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 172         Py_DECREF(fso);
 173         Py_DECREF(cso);
 174         Py_DECREF(mso);
 175     }
 176     wxPyEndBlockThreads();
 177
 178     // ...otherwise do our own thing with it
 179     if (! found) {
 180         // ignore it?
 181         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 182             return;
 183
 184         // turn it into a Python exception?
 185         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 186             wxString buf;
 187             buf.Alloc(4096);
 188             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 189             if (msg != NULL) {
 190                 buf += wxT(": ");
 191                 buf += msg;
 192             }
 193
 194             // set the exception
 195             wxPyBeginBlockThreads();
 196             PyObject* s = wx2PyString(buf);
 197             PyErr_SetObject(wxPyAssertionError, s);
 198             Py_DECREF(s);
 199             wxPyEndBlockThreads();
 200
 201             // Now when control returns to whatever API wrapper was called from
 202             // Python it should detect that an exception is set and will return
 203             // NULL, signalling the exception to Python.
 204         }
 205
 206         // Send it to the normal log destination, but only if
 207         // not _DIALOG because it will call this too
 208         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 209             wxString buf;
 210             buf.Alloc(4096);
 211             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 212                        file, line, cond);
 213             if (msg != NULL) {
 214                 buf += wxT(": ");
 215                 buf += msg;
 216             }
 217             wxLogDebug(buf);
 218         }
 219
 220         // do the normal wx assert dialog?
 221         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 222             wxApp::OnAssert(file, line, cond, msg);
 223     }
 224 }
 225 #endif
 226
 227
 228 /*static*/
 229 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 230 #ifdef __WXMAC__
 231     return s_macSupportPCMenuShortcuts;
 232 #else
 233     return 0;
 234 #endif
 235 }
 236
 237 /*static*/
 238 long wxPyApp::GetMacAboutMenuItemId() {
 239 #ifdef __WXMAC__
 240     return s_macAboutMenuItemId;
 241 #else
 242     return 0;
 243 #endif
 244 }
 245
 246 /*static*/
 247 long wxPyApp::GetMacPreferencesMenuItemId() {
 248 #ifdef __WXMAC__
 249     return s_macPreferencesMenuItemId;
 250 #else
 251     return 0;
 252 #endif
 253 }
 254
 255 /*static*/
 256 long wxPyApp::GetMacExitMenuItemId() {
 257 #ifdef __WXMAC__
 258     return s_macExitMenuItemId;
 259 #else
 260     return 0;
 261 #endif
 262 }
 263
 264 /*static*/
 265 wxString wxPyApp::GetMacHelpMenuTitleName() {
 266 #ifdef __WXMAC__
 267     return s_macHelpMenuTitleName;
 268 #else
 269     return wxEmptyString;
 270 #endif
 271 }
 272
 273 /*static*/
 274 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 275 #ifdef __WXMAC__
 276     s_macSupportPCMenuShortcuts = val;
 277 #endif
 278 }
 279
 280 /*static*/
 281 void wxPyApp::SetMacAboutMenuItemId(long val) {
 282 #ifdef __WXMAC__
 283     s_macAboutMenuItemId = val;
 284 #endif
 285 }
 286
 287 /*static*/
 288 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 289 #ifdef __WXMAC__
 290     s_macPreferencesMenuItemId = val;
 291 #endif
 292 }
 293
 294 /*static*/
 295 void wxPyApp::SetMacExitMenuItemId(long val) {
 296 #ifdef __WXMAC__
 297     s_macExitMenuItemId = val;
 298 #endif
 299 }
 300
 301 /*static*/
 302 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 303 #ifdef __WXMAC__
 304     s_macHelpMenuTitleName = val;
 305 #endif
 306 }
 307
 308
 309
 310 //---------------------------------------------------------------------
 311 //----------------------------------------------------------------------
 312
 313
 314 #if 0
 315 static char* wxPyCopyCString(const wxChar* src)
 316 {
 317     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 318     size_t len = strlen(buff);
 319     char*  dest = new char[len+1];
 320     strcpy(dest, buff);
 321     return dest;
 322 }
 323
 324 #if wxUSE_UNICODE
 325 static char* wxPyCopyCString(const char* src)   // we need a char version too
 326 {
 327     size_t len = strlen(src);
 328     char*  dest = new char[len+1];
 329     strcpy(dest, src);
 330     return dest;
 331 }
 332 #endif
 333
 334 static wxChar* wxPyCopyWString(const char *src)
 335 {
 336     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 337     wxString str(src, *wxConvCurrent);
 338     return copystring(str);
 339 }
 340
 341 #if wxUSE_UNICODE
 342 static wxChar* wxPyCopyWString(const wxChar *src)
 343 {
 344     return copystring(src);
 345 }
 346 #endif
 347 #endif
 348
 349
 350 //----------------------------------------------------------------------
 351
 352 // This function is called when the wxc module is imported to do some initial
 353 // setup.  (Before there is a wxApp object.)
 354 void __wxPreStart(PyObject* moduleDict)
 355 {
 356
 357 #ifdef __WXMSW__
 358 //    wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 359 #endif
 360
 361 #ifdef WXP_WITH_THREAD
 362     PyEval_InitThreads();
 363     wxPyTStates = new wxPyThreadStateArray;
 364     wxPyTMutex = new wxMutex;
 365 #endif
 366
 367     // Ensure that the build options in the DLL (or whatever) match this build
 368     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 369
 370     // Create an exception object to use for wxASSERTions
 371     wxPyAssertionError = PyErr_NewException("wxPython.wxc.wxPyAssertionError",
 372                                             PyExc_AssertionError, NULL);
 373     PyDict_SetItemString(moduleDict, "wxPyAssertionError", wxPyAssertionError);
 374 }
 375
 376
 377
 378 // Initialize wxWindows and bootstrap the user application by calling the
 379 // wxApp's OnInit, which is a parameter to this funciton.  See wxApp.__init__
 380 // in _extras.py to learn how the bootstrap is started.
 381 PyObject* __wxStart(PyObject* /* self */, PyObject* args)
 382 {
 383     PyObject*   onInitFunc = NULL;
 384     PyObject*   arglist= NULL;
 385     PyObject*   result = NULL;
 386     PyObject*   pyint = NULL;
 387     long        bResult;
 388
 389     if (!PyArg_ParseTuple(args, "O", &onInitFunc))
 390         return NULL;
 391
 392     // Get any command-line args passed to this program from the sys module
 393     int argc = 0;
 394     char** argv = NULL;
 395     PyObject* sysargv = PySys_GetObject("argv");
 396     if (sysargv != NULL) {
 397         argc = PyList_Size(sysargv);
 398         argv = new char*[argc+1];
 399         int x;
 400         for(x=0; x<argc; x++) {
 401             PyObject *pyArg = PyList_GetItem(sysargv, x);
 402             argv[x] = PyString_AsString(pyArg);
 403         }
 404         argv[argc] = NULL;
 405     }
 406
 407     if (! wxEntryStart(argc, argv) ) {
 408         PyErr_SetString(PyExc_SystemError,      // is this the right one?
 409                         "wxEntryStart failed!");
 410         goto error;
 411     }
 412     delete [] argv;
 413
 414
 415     // The stock objects were all NULL when they were loaded into
 416     // SWIG generated proxies, so re-init those now...
 417     wxPy_ReinitStockObjects();
 418
 419
 420     // Call the Python wxApp's OnInit function
 421     arglist = PyTuple_New(0);
 422     result = PyEval_CallObject(onInitFunc, arglist);
 423     Py_DECREF(arglist);
 424     if (!result) {      // an exception was raised.
 425         return NULL;
 426     }
 427
 428     pyint = PyNumber_Int(result);
 429     if (! pyint) {
 430         PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 431         goto error;
 432     }
 433     bResult = PyInt_AS_LONG(pyint);
 434     if (! bResult) {
 435         PyErr_SetString(PyExc_SystemExit, "OnInit returned FALSE, exiting...");
 436         goto error;
 437     }
 438
 439     Py_DECREF(result);
 440     Py_DECREF(pyint);
 441     Py_INCREF(Py_None);
 442     return Py_None;
 443
 444  error:
 445     Py_XDECREF(result);
 446     Py_XDECREF(pyint);
 447     return NULL;
 448 }
 449
 450
 451
 452 void __wxCleanup() {
 453     wxPyDoingCleanup = TRUE;
 454     if (wxPyDoCleanup)
 455         wxEntryCleanup();
 456 #ifdef WXP_WITH_THREAD
 457     delete wxPyTMutex;
 458     wxPyTMutex = NULL;
 459     wxPyTStates->Empty();
 460     delete wxPyTStates;
 461     wxPyTStates = NULL;
 462 #endif
 463 }
 464
 465
 466
 467
 468 PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 469 {
 470
 471     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 472         return NULL;
 473
 474     if (!PyDict_Check(wxPython_dict)) {
 475         PyErr_SetString(PyExc_TypeError, "_wxSetDictionary must have dictionary object!");
 476         return NULL;
 477     }
 478
 479     if (! wxPyPtrTypeMap)
 480         wxPyPtrTypeMap = PyDict_New();
 481     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 482
 483
 484 #ifdef __WXMOTIF__
 485 #define wxPlatform "__WXMOTIF__"
 486 #endif
 487 #ifdef __WXX11__
 488 #define wxPlatform "__WXX11__"
 489 #endif
 490 #ifdef __WXGTK__
 491 #define wxPlatform "__WXGTK__"
 492 #endif
 493 #if defined(__WIN32__) || defined(__WXMSW__)
 494 #define wxPlatform "__WXMSW__"
 495 #endif
 496 #ifdef __WXMAC__
 497 #define wxPlatform "__WXMAC__"
 498 #endif
 499
 500 #ifdef __WXDEBUG__
 501     int wxdebug = 1;
 502 #else
 503     int wxdebug = 0;
 504 #endif
 505
 506     PyDict_SetItemString(wxPython_dict, "wxPlatform", PyString_FromString(wxPlatform));
 507     PyDict_SetItemString(wxPython_dict, "wxUSE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 508     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 509
 510     Py_INCREF(Py_None);
 511     return Py_None;
 512 }
 513
 514
 515 //---------------------------------------------------------------------------
 516
 517 // The stock objects are no longer created when the wxc module is imported, but
 518 // only after the app object has been created.  This function will be called before
 519 // OnInit is called so we can hack the new pointer values into the obj.this attributes.
 520
 521 void wxPy_ReinitStockObjects()
 522 {
 523     char ptrbuf[128];
 524     PyObject* obj;
 525     PyObject* ptrobj;
 526
 527
 528
 529 #define REINITOBJ(name, type) \
 530     obj = PyDict_GetItemString(wxPython_dict, #name); \
 531     wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
 532     SWIG_MakePtr(ptrbuf, (char *) name, "_" #type "_p"); \
 533     ptrobj = PyString_FromString(ptrbuf); \
 534     PyObject_SetAttrString(obj, "this", ptrobj); \
 535     Py_DECREF(ptrobj)
 536
 537 #define REINITOBJ2(name, type) \
 538     obj = PyDict_GetItemString(wxPython_dict, #name); \
 539     wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
 540     SWIG_MakePtr(ptrbuf, (char *) &name, "_" #type "_p"); \
 541     ptrobj = PyString_FromString(ptrbuf); \
 542     PyObject_SetAttrString(obj, "this", ptrobj); \
 543     Py_DECREF(ptrobj)
 544
 545
 546     REINITOBJ(wxNORMAL_FONT, wxFont);
 547     REINITOBJ(wxSMALL_FONT, wxFont);
 548     REINITOBJ(wxITALIC_FONT, wxFont);
 549     REINITOBJ(wxSWISS_FONT, wxFont);
 550
 551     REINITOBJ(wxRED_PEN, wxPen);
 552     REINITOBJ(wxCYAN_PEN, wxPen);
 553     REINITOBJ(wxGREEN_PEN, wxPen);
 554     REINITOBJ(wxBLACK_PEN, wxPen);
 555     REINITOBJ(wxWHITE_PEN, wxPen);
 556     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 557     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 558     REINITOBJ(wxGREY_PEN, wxPen);
 559     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 560     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 561
 562     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 563     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 564     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 565     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 566     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 567     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 568     REINITOBJ(wxRED_BRUSH, wxBrush);
 569     REINITOBJ(wxGREY_BRUSH, wxBrush);
 570     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 571     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 572
 573     REINITOBJ(wxBLACK, wxColour);
 574     REINITOBJ(wxWHITE, wxColour);
 575     REINITOBJ(wxRED, wxColour);
 576     REINITOBJ(wxBLUE, wxColour);
 577     REINITOBJ(wxGREEN, wxColour);
 578     REINITOBJ(wxCYAN, wxColour);
 579     REINITOBJ(wxLIGHT_GREY, wxColour);
 580
 581     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 582     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 583     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 584
 585     REINITOBJ2(wxNullBitmap, wxBitmap);
 586     REINITOBJ2(wxNullIcon, wxIcon);
 587     REINITOBJ2(wxNullCursor, wxCursor);
 588     REINITOBJ2(wxNullPen, wxPen);
 589     REINITOBJ2(wxNullBrush, wxBrush);
 590     REINITOBJ2(wxNullPalette, wxPalette);
 591     REINITOBJ2(wxNullFont, wxFont);
 592     REINITOBJ2(wxNullColour, wxColour);
 593
 594     REINITOBJ(wxTheFontList, wxFontList);
 595     REINITOBJ(wxThePenList, wxPenList);
 596     REINITOBJ(wxTheBrushList, wxBrushList);
 597     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 598
 599
 600     REINITOBJ(wxTheClipboard, wxClipboard);
 601     REINITOBJ(wxTheMimeTypesManager, wxMimeTypesManager);
 602     REINITOBJ2(wxDefaultValidator, wxValidator);
 603     REINITOBJ2(wxNullImage, wxImage);
 604     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 605
 606 #undef REINITOBJ
 607 #undef REINITOBJ2
 608 }
 609
 610 //---------------------------------------------------------------------------
 611
 612 void wxPyClientData_dtor(wxPyClientData* self) {
 613     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 614                                         // may have already garbage collected the object...
 615         wxPyBeginBlockThreads();
 616         Py_DECREF(self->m_obj);
 617         wxPyEndBlockThreads();
 618     }
 619 }
 620
 621 void wxPyUserData_dtor(wxPyUserData* self) {
 622     if (! wxPyDoingCleanup) {
 623         wxPyBeginBlockThreads();
 624         Py_DECREF(self->m_obj);
 625         wxPyEndBlockThreads();
 626     }
 627 }
 628
 629
 630 // This is called when an OOR controled object is being destroyed.  Although
 631 // the C++ object is going away there is no way to force the Python object
 632 // (and all references to it) to die too.  This causes problems (crashes) in
 633 // wxPython when a python shadow object attempts to call a C++ method using
 634 // the now bogus pointer... So to try and prevent this we'll do a little black
 635 // magic and change the class of the python instance to a class that will
 636 // raise an exception for any attempt to call methods with it.  See
 637 // _wxPyDeadObject in _extras.py for the implementation of this class.
 638 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 639
 640     static PyObject* deadObjectClass = NULL;
 641
 642     wxPyBeginBlockThreads();
 643     if (deadObjectClass == NULL) {
 644         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 645         wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 646         Py_INCREF(deadObjectClass);
 647     }
 648
 649
 650     // Only if there is more than one reference to the object
 651     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 652         wxASSERT_MSG(PyInstance_Check(self->m_obj), wxT("m_obj not an instance!?!?!"));
 653
 654         // Call __del__, if there is one.
 655         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 656         if (func) {
 657             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 658             Py_XDECREF(rv);
 659             Py_DECREF(func);
 660         }
 661         if (PyErr_Occurred())
 662             PyErr_Clear();      // just ignore it for now
 663
 664         // Clear the instance's dictionary
 665         PyInstanceObject* inst = (PyInstanceObject*)self->m_obj;
 666         PyDict_Clear(inst->in_dict);
 667
 668         // put the name of the old class into the instance, and then reset the
 669         // class to be the dead class.
 670         PyDict_SetItemString(inst->in_dict, "_name", inst->in_class->cl_name);
 671         inst->in_class = (PyClassObject*)deadObjectClass;
 672         Py_INCREF(deadObjectClass);
 673     }
 674
 675     // m_obj is DECREF's in the base class dtor...
 676     wxPyEndBlockThreads();
 677 }
 678
 679
 680 //---------------------------------------------------------------------------
 681 // Stuff used by OOR to find the right wxPython class type to return and to
 682 // build it.
 683
 684
 685 // The pointer type map is used when the "pointer" type name generated by SWIG
 686 // is not the same as the shadow class name, for example wxPyTreeCtrl
 687 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 688 // so we'll just make it a Python dictionary in the wx module's namespace.
 689 // (See __wxSetDictionary)
 690 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 691     if (! wxPyPtrTypeMap)
 692         wxPyPtrTypeMap = PyDict_New();
 693     PyDict_SetItemString(wxPyPtrTypeMap,
 694                          (char*)commonName,
 695                          PyString_FromString((char*)ptrName));
 696 }
 697
 698
 699
 700 PyObject* wxPyClassExists(const wxString& className) {
 701
 702     PyObject* item;
 703     wxString  name(className);
 704     char      buff[64];               // should always be big enough...
 705
 706     if (!className)
 707         return NULL;
 708
 709     // Try the name as-is first
 710     sprintf(buff, "%sPtr", (const char*)name.mbc_str());
 711     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
 712
 713     // if not found see if there is a mapped name for it
 714     if ( ! classobj) {
 715         if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
 716             name = wxString(PyString_AsString(item), *wxConvCurrent);
 717             sprintf(buff, "%sPtr", (const char*)name.mbc_str());
 718             classobj = PyDict_GetItemString(wxPython_dict, buff);
 719         }
 720     }
 721
 722     return classobj;  // returns NULL if not found
 723 }
 724
 725
 726 PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
 727     PyObject* target = NULL;
 728     bool      isEvtHandler = FALSE;
 729
 730     if (source) {
 731         // If it's derived from wxEvtHandler then there may
 732         // already be a pointer to a Python object that we can use
 733         // in the OOR data.
 734         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 735             isEvtHandler = TRUE;
 736             wxEvtHandler* eh = (wxEvtHandler*)source;
 737             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 738             if (data) {
 739                 target = data->m_obj;
 740                 Py_INCREF(target);
 741             }
 742         }
 743
 744         if (! target) {
 745             // Otherwise make it the old fashioned way by making a
 746             // new shadow object and putting this pointer in it.
 747             wxClassInfo* info  = source->GetClassInfo();
 748             wxString     name  = info->GetClassName();
 749             PyObject*    klass = wxPyClassExists(name);
 750             while (info && !klass) {
 751                 name = (wxChar*)info->GetBaseClassName1();
 752                 info = wxClassInfo::FindClass(name);
 753                 klass = wxPyClassExists(name);
 754             }
 755             if (info) {
 756                 target = wxPyConstructObject(source, name, klass, FALSE);
 757                 if (target && isEvtHandler)
 758                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
 759             } else {
 760                 wxString msg(wxT("wxPython class not found for "));
 761                 msg += source->GetClassInfo()->GetClassName();
 762                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
 763                 target = NULL;
 764             }
 765         }
 766     } else {  // source was NULL so return None.
 767         Py_INCREF(Py_None); target = Py_None;
 768     }
 769     return target;
 770 }
 771
 772
 773 PyObject*  wxPyMake_wxSizer(wxSizer* source) {
 774     PyObject* target = NULL;
 775
 776     if (source && wxIsKindOf(source, wxSizer)) {
 777         // If it's derived from wxSizer then there may
 778         // already be a pointer to a Python object that we can use
 779         // in the OOR data.
 780         wxSizer* sz = (wxSizer*)source;
 781         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
 782         if (data) {
 783             target = data->m_obj;
 784             Py_INCREF(target);
 785         }
 786     }
 787     if (! target) {
 788         target = wxPyMake_wxObject(source, FALSE);
 789         if (target != Py_None)
 790             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
 791     }
 792     return target;
 793 }
 794
 795
 796
 797 //---------------------------------------------------------------------------
 798
 799 PyObject* wxPyConstructObject(void* ptr,
 800                               const wxString& className,
 801                               PyObject* klass,
 802                               int setThisOwn) {
 803
 804     PyObject* obj;
 805     PyObject* arg;
 806     PyObject* item;
 807     wxString  name(className);
 808     char      swigptr[64];      // should always be big enough...
 809     char      buff[64];
 810
 811     if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
 812         name = wxString(PyString_AsString(item), *wxConvCurrent);
 813     }
 814     sprintf(buff, "_%s_p", (const char*)name.mbc_str());
 815     SWIG_MakePtr(swigptr, ptr, buff);
 816
 817     arg = Py_BuildValue("(s)", swigptr);
 818     obj = PyInstance_New(klass, arg, NULL);
 819     Py_DECREF(arg);
 820
 821     if (setThisOwn) {
 822         PyObject* one = PyInt_FromLong(1);
 823         PyObject_SetAttrString(obj, "thisown", one);
 824         Py_DECREF(one);
 825     }
 826
 827     return obj;
 828 }
 829
 830
 831 PyObject* wxPyConstructObject(void* ptr,
 832                               const wxString& className,
 833                               int setThisOwn) {
 834     if (!ptr) {
 835         Py_INCREF(Py_None);
 836         return Py_None;
 837     }
 838
 839     char    buff[64];               // should always be big enough...
 840     sprintf(buff, "%sPtr", (const char*)className.mbc_str());
 841
 842     wxASSERT_MSG(wxPython_dict, wxT("wxPython_dict is not set yet!!"));
 843
 844     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
 845     if (! classobj) {
 846         wxString msg(wxT("wxPython class not found for "));
 847         msg += className;
 848         PyErr_SetString(PyExc_NameError, msg.mbc_str());
 849         return NULL;
 850     }
 851
 852     return wxPyConstructObject(ptr, className, classobj, setThisOwn);
 853 }
 854
 855
 856 //---------------------------------------------------------------------------
 857
 858
 859 #ifdef WXP_WITH_THREAD
 860 inline
 861 unsigned long wxPyGetCurrentThreadId() {
 862     return wxThread::GetCurrentId();
 863 }
 864
 865 static PyThreadState* gs_shutdownTState;
 866 static
 867 PyThreadState* wxPyGetThreadState() {
 868     if (wxPyTMutex == NULL) // Python is shutting down...
 869         return gs_shutdownTState;
 870
 871     unsigned long ctid = wxPyGetCurrentThreadId();
 872     PyThreadState* tstate = NULL;
 873
 874     wxPyTMutex->Lock();
 875     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 876         wxPyThreadState& info = wxPyTStates->Item(i);
 877         if (info.tid == ctid) {
 878             tstate = info.tstate;
 879             break;
 880         }
 881     }
 882     wxPyTMutex->Unlock();
 883     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
 884     return tstate;
 885 }
 886
 887 static
 888 void wxPySaveThreadState(PyThreadState* tstate) {
 889     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
 890         gs_shutdownTState = tstate;
 891         return;
 892     }
 893     unsigned long ctid = wxPyGetCurrentThreadId();
 894     wxPyTMutex->Lock();
 895     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 896         wxPyThreadState& info = wxPyTStates->Item(i);
 897         if (info.tid == ctid) {
 898 #if 0
 899             if (info.tstate != tstate)
 900                 wxLogMessage("*** tstate mismatch!???");
 901 #endif
 902             // info.tstate = tstate;    *** DO NOT update existing ones???
 903             // Normally it will never change, but apparently COM callbacks
 904             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
 905             // tstate which will then be garbage the next time we try to use
 906             // it...
 907             wxPyTMutex->Unlock();
 908             return;
 909         }
 910     }
 911     // not found, so add it...
 912     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
 913     wxPyTMutex->Unlock();
 914 }
 915
 916 #endif
 917
 918
 919 // Calls from Python to wxWindows code are wrapped in calls to these
 920 // functions:
 921
 922 PyThreadState* wxPyBeginAllowThreads() {
 923 #ifdef WXP_WITH_THREAD
 924     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
 925     wxPySaveThreadState(saved);
 926     return saved;
 927 #else
 928     return NULL;
 929 #endif
 930 }
 931
 932 void wxPyEndAllowThreads(PyThreadState* saved) {
 933 #ifdef WXP_WITH_THREAD
 934     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
 935 #endif
 936 }
 937
 938
 939
 940 // Calls from wxWindows back to Python code, or even any PyObject
 941 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
 942
 943 void wxPyBeginBlockThreads() {
 944 #ifdef WXP_WITH_THREAD
 945     PyThreadState* tstate = wxPyGetThreadState();
 946     PyEval_RestoreThread(tstate);
 947 #endif
 948 }
 949
 950
 951 void wxPyEndBlockThreads() {
 952 #ifdef WXP_WITH_THREAD
 953     // Is there any need to save it again?
 954     // PyThreadState* tstate =
 955     PyEval_SaveThread();
 956 #endif
 957 }
 958
 959
 960 //---------------------------------------------------------------------------
 961 // wxPyInputStream and wxPyCBInputStream methods
 962
 963
 964 void wxPyInputStream::close() {
 965     /* do nothing for now */
 966 }
 967
 968 void wxPyInputStream::flush() {
 969     /* do nothing for now */
 970 }
 971
 972 bool wxPyInputStream::eof() {
 973     if (m_wxis)
 974         return m_wxis->Eof();
 975     else
 976         return TRUE;
 977 }
 978
 979 wxPyInputStream::~wxPyInputStream() {
 980     /* do nothing */
 981 }
 982
 983
 984
 985
 986 PyObject* wxPyInputStream::read(int size) {
 987     PyObject* obj = NULL;
 988     wxMemoryBuffer buf;
 989     const int BUFSIZE = 1024;
 990
 991     // check if we have a real wxInputStream to work with
 992     if (!m_wxis) {
 993         wxPyBeginBlockThreads();
 994         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
 995         wxPyEndBlockThreads();
 996         return NULL;
 997     }
 998
 999     if (size < 0) {
1000         // read while bytes are available on the stream
1001         while ( m_wxis->CanRead() ) {
1002             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1003             buf.UngetAppendBuf(m_wxis->LastRead());
1004         }
1005
1006     } else {  // Read only size number of characters
1007         m_wxis->Read(buf.GetWriteBuf(size), size);
1008         buf.UngetWriteBuf(m_wxis->LastRead());
1009     }
1010
1011     // error check
1012     wxPyBeginBlockThreads();
1013     wxStreamError err = m_wxis->GetLastError();
1014     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1015         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1016     }
1017     else {
1018         // We use only strings for the streams, not unicode
1019         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1020     }
1021     wxPyEndBlockThreads();
1022     return obj;
1023 }
1024
1025
1026 PyObject* wxPyInputStream::readline(int size) {
1027     PyObject* obj = NULL;
1028     wxMemoryBuffer buf;
1029     int i;
1030     char ch;
1031
1032     // check if we have a real wxInputStream to work with
1033     if (!m_wxis) {
1034         wxPyBeginBlockThreads();
1035         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1036         wxPyEndBlockThreads();
1037         return NULL;
1038     }
1039
1040     // read until \n or byte limit reached
1041     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1042         ch = m_wxis->GetC();
1043         buf.AppendByte(ch);
1044     }
1045
1046     // errorcheck
1047     wxPyBeginBlockThreads();
1048     wxStreamError err = m_wxis->GetLastError();
1049     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1050         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1051     }
1052     else {
1053         // We use only strings for the streams, not unicode
1054         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1055     }
1056     wxPyEndBlockThreads();
1057     return obj;
1058 }
1059
1060
1061 PyObject* wxPyInputStream::readlines(int sizehint) {
1062     PyObject* pylist;
1063
1064     // check if we have a real wxInputStream to work with
1065     if (!m_wxis) {
1066         wxPyBeginBlockThreads();
1067         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1068         wxPyEndBlockThreads();
1069         return NULL;
1070     }
1071
1072     // init list
1073     wxPyBeginBlockThreads();
1074     pylist = PyList_New(0);
1075     if (!pylist) {
1076         wxPyBeginBlockThreads();
1077         PyErr_NoMemory();
1078         wxPyEndBlockThreads();
1079         return NULL;
1080     }
1081
1082     // read sizehint bytes or until EOF
1083     int i;
1084     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1085         PyObject* s = this->readline();
1086         if (s == NULL) {
1087             wxPyBeginBlockThreads();
1088             Py_DECREF(pylist);
1089             wxPyEndBlockThreads();
1090             return NULL;
1091         }
1092         wxPyBeginBlockThreads();
1093         PyList_Append(pylist, s);
1094         i += PyString_Size(s);
1095         wxPyEndBlockThreads();
1096     }
1097
1098     // error check
1099     wxStreamError err = m_wxis->GetLastError();
1100     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1101         wxPyBeginBlockThreads();
1102         Py_DECREF(pylist);
1103         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1104         wxPyEndBlockThreads();
1105         return NULL;
1106     }
1107
1108     return pylist;
1109 }
1110
1111
1112 void wxPyInputStream::seek(int offset, int whence) {
1113     if (m_wxis)
1114         m_wxis->SeekI(offset, wxSeekMode(whence));
1115 }
1116
1117 int wxPyInputStream::tell(){
1118     if (m_wxis)
1119         return m_wxis->TellI();
1120     else return 0;
1121 }
1122
1123
1124
1125
1126 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1127     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1128 {}
1129
1130
1131 wxPyCBInputStream::~wxPyCBInputStream() {
1132     if (m_block) wxPyBeginBlockThreads();
1133     Py_XDECREF(m_read);
1134     Py_XDECREF(m_seek);
1135     Py_XDECREF(m_tell);
1136     if (m_block) wxPyEndBlockThreads();
1137 }
1138
1139
1140 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1141     if (block) wxPyBeginBlockThreads();
1142
1143     PyObject* read = getMethod(py, "read");
1144     PyObject* seek = getMethod(py, "seek");
1145     PyObject* tell = getMethod(py, "tell");
1146
1147     if (!read) {
1148         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1149         Py_XDECREF(read);
1150         Py_XDECREF(seek);
1151         Py_XDECREF(tell);
1152         if (block) wxPyEndBlockThreads();
1153         return NULL;
1154     }
1155
1156     if (block) wxPyEndBlockThreads();
1157     return new wxPyCBInputStream(read, seek, tell, block);
1158 }
1159
1160
1161 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1162     return wxPyCBInputStream::create(py, block);
1163 }
1164
1165 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1166     if (!PyObject_HasAttrString(py, name))
1167         return NULL;
1168     PyObject* o = PyObject_GetAttrString(py, name);
1169     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1170         Py_DECREF(o);
1171         return NULL;
1172     }
1173     return o;
1174 }
1175
1176
1177 size_t wxPyCBInputStream::GetSize() const {
1178     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1179     if (m_seek && m_tell) {
1180         off_t temp = self->OnSysTell();
1181         off_t ret = self->OnSysSeek(0, wxFromEnd);
1182         self->OnSysSeek(temp, wxFromStart);
1183         return ret;
1184     }
1185     else
1186         return 0;
1187 }
1188
1189
1190 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1191     if (bufsize == 0)
1192         return 0;
1193
1194     wxPyBeginBlockThreads();
1195     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1196     PyObject* result = PyEval_CallObject(m_read, arglist);
1197     Py_DECREF(arglist);
1198
1199     size_t o = 0;
1200     if ((result != NULL) && PyString_Check(result)) {
1201         o = PyString_Size(result);
1202         if (o == 0)
1203             m_lasterror = wxSTREAM_EOF;
1204         if (o > bufsize)
1205             o = bufsize;
1206         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1207         Py_DECREF(result);
1208
1209     }
1210     else
1211         m_lasterror = wxSTREAM_READ_ERROR;
1212     wxPyEndBlockThreads();
1213     return o;
1214 }
1215
1216 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1217     m_lasterror = wxSTREAM_WRITE_ERROR;
1218     return 0;
1219 }
1220
1221 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
1222     wxPyBeginBlockThreads();
1223 #ifdef _LARGE_FILES
1224     // off_t is a 64-bit value...
1225     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
1226 #else
1227     PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1228 #endif
1229     PyObject* result = PyEval_CallObject(m_seek, arglist);
1230     Py_DECREF(arglist);
1231     Py_XDECREF(result);
1232     wxPyEndBlockThreads();
1233     return OnSysTell();
1234 }
1235
1236
1237 off_t wxPyCBInputStream::OnSysTell() const {
1238     wxPyBeginBlockThreads();
1239     PyObject* arglist = Py_BuildValue("()");
1240     PyObject* result = PyEval_CallObject(m_tell, arglist);
1241     Py_DECREF(arglist);
1242     off_t o = 0;
1243     if (result != NULL) {
1244 #ifdef _LARGE_FILES
1245         if (PyLong_Check(result))
1246             o = PyLong_AsLongLong(result);
1247         else
1248 #else
1249         o = PyInt_AsLong(result);
1250 #endif
1251         Py_DECREF(result);
1252     };
1253     wxPyEndBlockThreads();
1254     return o;
1255 }
1256
1257 //----------------------------------------------------------------------
1258
1259 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1260
1261 wxPyCallback::wxPyCallback(PyObject* func) {
1262     m_func = func;
1263     Py_INCREF(m_func);
1264 }
1265
1266 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1267     m_func = other.m_func;
1268     Py_INCREF(m_func);
1269 }
1270
1271 wxPyCallback::~wxPyCallback() {
1272     wxPyBeginBlockThreads();
1273     Py_DECREF(m_func);
1274     wxPyEndBlockThreads();
1275 }
1276
1277
1278
1279 // This function is used for all events destined for Python event handlers.
1280 void wxPyCallback::EventThunker(wxEvent& event) {
1281     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1282     PyObject*       func = cb->m_func;
1283     PyObject*       result;
1284     PyObject*       arg;
1285     PyObject*       tuple;
1286     bool            checkSkip = FALSE;
1287
1288     wxPyBeginBlockThreads();
1289     wxString className = event.GetClassInfo()->GetClassName();
1290
1291     // If the event is one of these types then pass the original
1292     // event object instead of the one passed to us.
1293     if ( className == wxT("wxPyEvent") ) {
1294         arg =       ((wxPyEvent*)&event)->GetSelf();
1295         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1296     }
1297     else if ( className == wxT("wxPyCommandEvent") ) {
1298         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1299         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1300     }
1301     else {
1302         arg = wxPyConstructObject((void*)&event, className);
1303     }
1304
1305     // Call the event handler, passing the event object
1306     tuple = PyTuple_New(1);
1307     PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1308     result = PyEval_CallObject(func, tuple);
1309     if ( result ) {
1310         Py_DECREF(result);   // result is ignored, but we still need to decref it
1311         PyErr_Clear();       // Just in case...
1312     } else {
1313         PyErr_Print();
1314     }
1315
1316     if ( checkSkip ) {
1317         // if the event object was one of our special types and
1318         // it had been cloned, then we need to extract the Skipped
1319         // value from the original and set it in the clone.
1320         result = PyObject_CallMethod(arg, "GetSkipped", "");
1321         if ( result ) {
1322             event.Skip(PyInt_AsLong(result));
1323             Py_DECREF(result);
1324         } else {
1325             PyErr_Print();
1326         }
1327     }
1328
1329     Py_DECREF(tuple);
1330     wxPyEndBlockThreads();
1331 }
1332
1333
1334 //----------------------------------------------------------------------
1335
1336 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1337       m_lastFound = NULL;
1338       m_self = other.m_self;
1339       m_class = other.m_class;
1340       if (m_self) {
1341           Py_INCREF(m_self);
1342           Py_INCREF(m_class);
1343       }
1344 }
1345
1346
1347 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1348     m_self = self;
1349     m_class = klass;
1350     m_incRef = incref;
1351     if (incref) {
1352         Py_INCREF(m_self);
1353         Py_INCREF(m_class);
1354     }
1355 }
1356
1357
1358 #if PYTHON_API_VERSION >= 1011
1359
1360 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1361 // in which the method was defined.  Starting with 2.2 it returns
1362 // "class that asked for the method" which seems totally bogus to me
1363 // but apprently it fixes some obscure problem waiting to happen in
1364 // Python.  Since the API was not documented Guido and the gang felt
1365 // safe in changing it.  Needless to say that totally screwed up the
1366 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1367 // code to find the class where the method is actually defined...
1368
1369 static
1370 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1371 {
1372     int i, n;
1373
1374     if (PyType_Check(klass)) {      // new style classes
1375         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1376         // (TODO: This part is not tested yet, so I'm not sure it is correct...)
1377         PyTypeObject* type = (PyTypeObject*)klass;
1378         PyObject *mro, *res, *base, *dict;
1379         /* Look in tp_dict of types in MRO */
1380         mro = type->tp_mro;
1381         assert(PyTuple_Check(mro));
1382         n = PyTuple_GET_SIZE(mro);
1383         for (i = 0; i < n; i++) {
1384             base = PyTuple_GET_ITEM(mro, i);
1385             if (PyClass_Check(base))
1386                 dict = ((PyClassObject *)base)->cl_dict;
1387             else {
1388                 assert(PyType_Check(base));
1389                 dict = ((PyTypeObject *)base)->tp_dict;
1390             }
1391             assert(dict && PyDict_Check(dict));
1392             res = PyDict_GetItem(dict, name);
1393             if (res != NULL)
1394                 return base;
1395         }
1396         return NULL;
1397     }
1398
1399     else if (PyClass_Check(klass)) { // old style classes
1400         // This code is borrowed/adapted from class_lookup in classobject.c
1401         PyClassObject* cp = (PyClassObject*)klass;
1402         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1403         if (value != NULL) {
1404             return (PyObject*)cp;
1405         }
1406         n = PyTuple_Size(cp->cl_bases);
1407         for (i = 0; i < n; i++) {
1408             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1409             PyObject *v = PyFindClassWithAttr(base, name);
1410             if (v != NULL)
1411                 return v;
1412         }
1413         return NULL;
1414     }
1415     return NULL;
1416 }
1417 #endif
1418
1419
1420 static
1421 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1422 {
1423     PyObject* mgc = PyMethod_GET_CLASS(method);
1424
1425 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1426     return mgc;
1427 #else                             // 2.2 and after, the hard way...
1428
1429     PyObject* nameo = PyString_FromString(name);
1430     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1431     Py_DECREF(nameo);
1432     return klass;
1433 #endif
1434 }
1435
1436
1437
1438 bool wxPyCallbackHelper::findCallback(const char* name) const {
1439     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1440     self->m_lastFound = NULL;
1441
1442     // If the object (m_self) has an attibute of the given name...
1443     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1444         PyObject *method, *klass;
1445         method = PyObject_GetAttrString(m_self, (char*)name);
1446
1447         // ...and if that attribute is a method, and if that method's class is
1448         // not from a base class...
1449         if (PyMethod_Check(method) &&
1450             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1451             ((klass == m_class) || PyClass_IsSubclass(klass, m_class))) {
1452
1453             // ...then we'll save a pointer to the method so callCallback can call it.
1454             self->m_lastFound = method;
1455         }
1456         else {
1457             Py_DECREF(method);
1458         }
1459     }
1460     return m_lastFound != NULL;
1461 }
1462
1463
1464 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1465     PyObject*   result;
1466     int         retval = FALSE;
1467
1468     result = callCallbackObj(argTuple);
1469     if (result) {                       // Assumes an integer return type...
1470         retval = PyInt_AsLong(result);
1471         Py_DECREF(result);
1472         PyErr_Clear();                  // forget about it if it's not...
1473     }
1474     return retval;
1475 }
1476
1477 // Invoke the Python callable object, returning the raw PyObject return
1478 // value.  Caller should DECREF the return value and also call PyEval_SaveThread.
1479 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1480     PyObject* result;
1481
1482     // Save a copy of the pointer in case the callback generates another
1483     // callback.  In that case m_lastFound will have a different value when
1484     // it gets back here...
1485     PyObject* method = m_lastFound;
1486
1487     result = PyEval_CallObject(method, argTuple);
1488     Py_DECREF(argTuple);
1489     Py_DECREF(method);
1490     if (!result) {
1491         PyErr_Print();
1492     }
1493     return result;
1494 }
1495
1496
1497 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1498     cbh.setSelf(self, klass, incref);
1499 }
1500
1501 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1502     return cbh.findCallback(name);
1503 }
1504
1505 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1506     return cbh.callCallback(argTuple);
1507 }
1508
1509 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1510     return cbh.callCallbackObj(argTuple);
1511 }
1512
1513
1514 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1515     if (cbh->m_incRef) {
1516         wxPyBeginBlockThreads();
1517         Py_XDECREF(cbh->m_self);
1518         Py_XDECREF(cbh->m_class);
1519         wxPyEndBlockThreads();
1520     }
1521 }
1522
1523 //---------------------------------------------------------------------------
1524 //---------------------------------------------------------------------------
1525 // These event classes can be derived from in Python and passed through the event
1526 // system without losing anything.  They do this by keeping a reference to
1527 // themselves and some special case handling in wxPyCallback::EventThunker.
1528
1529
1530 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1531     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1532     //Py_INCREF(m_self);        //      circular loops...
1533     m_cloned = FALSE;
1534 }
1535
1536 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1537     wxPyBeginBlockThreads();
1538     if (m_cloned)
1539         Py_DECREF(m_self);
1540     wxPyEndBlockThreads();
1541 }
1542
1543 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1544     wxPyBeginBlockThreads();
1545     if (m_cloned)
1546         Py_DECREF(m_self);
1547     m_self = self;
1548     if (clone) {
1549         Py_INCREF(m_self);
1550         m_cloned = TRUE;
1551     }
1552     wxPyEndBlockThreads();
1553 }
1554
1555 PyObject* wxPyEvtSelfRef::GetSelf() const {
1556     Py_INCREF(m_self);
1557     return m_self;
1558 }
1559
1560
1561 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1562 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1563
1564
1565 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1566     : wxEvent(winid, commandType) {
1567 }
1568
1569
1570 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1571     : wxEvent(evt)
1572 {
1573     SetSelf(evt.m_self, TRUE);
1574 }
1575
1576
1577 wxPyEvent::~wxPyEvent() {
1578 }
1579
1580
1581 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1582     : wxCommandEvent(commandType, id) {
1583 }
1584
1585
1586 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1587     : wxCommandEvent(evt)
1588 {
1589     SetSelf(evt.m_self, TRUE);
1590 }
1591
1592
1593 wxPyCommandEvent::~wxPyCommandEvent() {
1594 }
1595
1596
1597
1598
1599 //---------------------------------------------------------------------------
1600 //---------------------------------------------------------------------------
1601
1602
1603 wxPyTimer::wxPyTimer(PyObject* callback) {
1604     func = callback;
1605     Py_INCREF(func);
1606 }
1607
1608 wxPyTimer::~wxPyTimer() {
1609     wxPyBeginBlockThreads();
1610     Py_DECREF(func);
1611     wxPyEndBlockThreads();
1612 }
1613
1614 void wxPyTimer::Notify() {
1615     if (!func || func == Py_None) {
1616         wxTimer::Notify();
1617     }
1618     else {
1619         wxPyBeginBlockThreads();
1620
1621         PyObject*   result;
1622         PyObject*   args = Py_BuildValue("()");
1623
1624         result = PyEval_CallObject(func, args);
1625         Py_DECREF(args);
1626         if (result) {
1627             Py_DECREF(result);
1628             PyErr_Clear();
1629         } else {
1630             PyErr_Print();
1631         }
1632
1633         wxPyEndBlockThreads();
1634     }
1635 }
1636
1637
1638
1639 //---------------------------------------------------------------------------
1640 //---------------------------------------------------------------------------
1641 // Convert a wxList to a Python List
1642
1643 PyObject* wxPy_ConvertList(wxListBase* listbase, const char* className) {
1644     wxList*     list = (wxList*)listbase;  // this is probably bad...
1645     PyObject*   pyList;
1646     PyObject*   pyObj;
1647     wxObject*   wxObj;
1648     wxNode*     node = list->GetFirst();
1649
1650     wxPyBeginBlockThreads();
1651     pyList = PyList_New(0);
1652     while (node) {
1653         wxObj = node->GetData();
1654         pyObj = wxPyMake_wxObject(wxObj); //wxPyConstructObject(wxObj, className);
1655         PyList_Append(pyList, pyObj);
1656         node = node->GetNext();
1657     }
1658     wxPyEndBlockThreads();
1659     return pyList;
1660 }
1661
1662 //----------------------------------------------------------------------
1663
1664 long wxPyGetWinHandle(wxWindow* win) {
1665 #ifdef __WXMSW__
1666     return (long)win->GetHandle();
1667 #endif
1668
1669 #ifdef __WXAC__
1670     return (long)win->GetHandle();
1671 #endif
1672
1673     // Find and return the actual X-Window.
1674 #ifdef __WXGTK__
1675     if (win->m_wxwindow) {
1676 #ifdef __WXGTK20__
1677         return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window);
1678 #else
1679         GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1680         if (bwin) {
1681             return (long)bwin->xwindow;
1682         }
1683 #endif
1684     }
1685 #endif
1686     return 0;
1687 }
1688
1689 //----------------------------------------------------------------------
1690 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1691 // included in every file over and over again...
1692
1693 #if PYTHON_API_VERSION >= 1009
1694     static char* wxStringErrorMsg = "String or Unicode type required";
1695 #else
1696     static char* wxStringErrorMsg = "String type required";
1697 #endif
1698
1699
1700 wxString* wxString_in_helper(PyObject* source) {
1701     wxString* target;
1702 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1703     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1704         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1705         return NULL;
1706     }
1707 #if wxUSE_UNICODE
1708     if (PyUnicode_Check(source)) {
1709         target = new wxString();
1710         size_t len = PyUnicode_GET_SIZE(source);
1711         if (len) {
1712             PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len);
1713             target->UngetWriteBuf();
1714         }
1715     } else {
1716         // It is a string, get pointers to it and transform to unicode
1717         char* tmpPtr; int tmpSize;
1718         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1719         target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1720     }
1721 #else
1722     char* tmpPtr; int tmpSize;
1723     if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1724         PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1725         return NULL;
1726     }
1727     target = new wxString(tmpPtr, tmpSize);
1728 #endif // wxUSE_UNICODE
1729
1730 #else  // No Python unicode API (1.5.2)
1731     if (!PyString_Check(source)) {
1732         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1733         return NULL;
1734     }
1735     target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1736 #endif
1737     return target;
1738 }
1739
1740
1741 // Similar to above except doesn't use "new" and doesn't set an exception
1742 wxString Py2wxString(PyObject* source)
1743 {
1744     wxString target;
1745     bool     doDecRef = FALSE;
1746
1747 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1748     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1749         // Convert to String if not one already...  (TODO: Unicode too?)
1750         source = PyObject_Str(source);
1751         doDecRef = TRUE;
1752     }
1753
1754 #if wxUSE_UNICODE
1755     if (PyUnicode_Check(source)) {
1756         size_t len = PyUnicode_GET_SIZE(source);
1757         if (len) {
1758             PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len);
1759             target.UngetWriteBuf();
1760         }
1761     } else {
1762         // It is a string, get pointers to it and transform to unicode
1763         char* tmpPtr; int tmpSize;
1764         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1765         target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1766     }
1767 #else
1768     char* tmpPtr; int tmpSize;
1769     PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1770     target = wxString(tmpPtr, tmpSize);
1771 #endif // wxUSE_UNICODE
1772
1773 #else  // No Python unicode API (1.5.2)
1774     if (!PyString_Check(source)) {
1775         // Convert to String if not one already...
1776         source = PyObject_Str(source);
1777         doDecRef = TRUE;
1778     }
1779     target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1780 #endif
1781
1782     if (doDecRef)
1783         Py_DECREF(source);
1784     return target;
1785 }
1786
1787
1788 // Make either a Python String or Unicode object, depending on build mode
1789 PyObject* wx2PyString(const wxString& src)
1790 {
1791     PyObject* str;
1792 #if wxUSE_UNICODE
1793     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1794 #else
1795     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1796 #endif
1797     return str;
1798 }
1799
1800
1801 //----------------------------------------------------------------------
1802
1803
1804 byte* byte_LIST_helper(PyObject* source) {
1805     if (!PyList_Check(source)) {
1806         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1807         return NULL;
1808     }
1809     int count = PyList_Size(source);
1810     byte* temp = new byte[count];
1811     if (! temp) {
1812         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1813         return NULL;
1814     }
1815     for (int x=0; x<count; x++) {
1816         PyObject* o = PyList_GetItem(source, x);
1817         if (! PyInt_Check(o)) {
1818             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1819             return NULL;
1820         }
1821         temp[x] = (byte)PyInt_AsLong(o);
1822     }
1823     return temp;
1824 }
1825
1826
1827 int* int_LIST_helper(PyObject* source) {
1828     if (!PyList_Check(source)) {
1829         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1830         return NULL;
1831     }
1832     int count = PyList_Size(source);
1833     int* temp = new int[count];
1834     if (! temp) {
1835         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1836         return NULL;
1837     }
1838     for (int x=0; x<count; x++) {
1839         PyObject* o = PyList_GetItem(source, x);
1840         if (! PyInt_Check(o)) {
1841             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1842             return NULL;
1843         }
1844         temp[x] = PyInt_AsLong(o);
1845     }
1846     return temp;
1847 }
1848
1849
1850 long* long_LIST_helper(PyObject* source) {
1851     if (!PyList_Check(source)) {
1852         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1853         return NULL;
1854     }
1855     int count = PyList_Size(source);
1856     long* temp = new long[count];
1857     if (! temp) {
1858         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1859         return NULL;
1860     }
1861     for (int x=0; x<count; x++) {
1862         PyObject* o = PyList_GetItem(source, x);
1863         if (! PyInt_Check(o)) {
1864             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1865             return NULL;
1866         }
1867         temp[x] = PyInt_AsLong(o);
1868     }
1869     return temp;
1870 }
1871
1872
1873 char** string_LIST_helper(PyObject* source) {
1874     if (!PyList_Check(source)) {
1875         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1876         return NULL;
1877     }
1878     int count = PyList_Size(source);
1879     char** temp = new char*[count];
1880     if (! temp) {
1881         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1882         return NULL;
1883     }
1884     for (int x=0; x<count; x++) {
1885         PyObject* o = PyList_GetItem(source, x);
1886         if (! PyString_Check(o)) {
1887             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1888             return NULL;
1889         }
1890         temp[x] = PyString_AsString(o);
1891     }
1892     return temp;
1893 }
1894
1895 //--------------------------------
1896 // Part of patch from Tim Hochberg
1897 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1898     if (PyInt_Check(o1) && PyInt_Check(o2)) {
1899         point->x = PyInt_AS_LONG(o1);
1900         point->y = PyInt_AS_LONG(o2);
1901         return true;
1902     }
1903     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1904         point->x = (int)PyFloat_AS_DOUBLE(o1);
1905         point->y = (int)PyFloat_AS_DOUBLE(o2);
1906         return true;
1907     }
1908     if (PyInstance_Check(o1) || PyInstance_Check(o2)) {
1909         // Disallow instances because they can cause havok
1910         return false;
1911     }
1912     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1913         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1914         point->x = PyInt_AsLong(o1);
1915         point->y = PyInt_AsLong(o2);
1916         return true;
1917     }
1918     return false;
1919 }
1920
1921
1922 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1923     // Putting all of the declarations here allows
1924     // us to put the error handling all in one place.
1925     int x;
1926     wxPoint* temp;
1927     PyObject *o, *o1, *o2;
1928     bool isFast = PyList_Check(source) || PyTuple_Check(source);
1929
1930     if (!PySequence_Check(source)) {
1931         goto error0;
1932     }
1933
1934     // The length of the sequence is returned in count.
1935     *count = PySequence_Length(source);
1936     if (*count < 0) {
1937         goto error0;
1938     }
1939
1940     temp = new wxPoint[*count];
1941     if (!temp) {
1942         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1943         return NULL;
1944     }
1945     for (x=0; x<*count; x++) {
1946         // Get an item: try fast way first.
1947         if (isFast) {
1948             o = PySequence_Fast_GET_ITEM(source, x);
1949         }
1950         else {
1951             o = PySequence_GetItem(source, x);
1952             if (o == NULL) {
1953                 goto error1;
1954             }
1955         }
1956
1957         // Convert o to wxPoint.
1958         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1959             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1960             o1 = PySequence_Fast_GET_ITEM(o, 0);
1961             o2 = PySequence_Fast_GET_ITEM(o, 1);
1962             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1963                 goto error2;
1964             }
1965         }
1966         else if (PyInstance_Check(o)) {
1967             wxPoint* pt;
1968             if (SWIG_GetPtrObj(o, (void **)&pt, "_wxPoint_p")) {
1969                 goto error2;
1970             }
1971             temp[x] = *pt;
1972         }
1973         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1974             o1 = PySequence_GetItem(o, 0);
1975             o2 = PySequence_GetItem(o, 1);
1976             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1977                 goto error3;
1978             }
1979             Py_DECREF(o1);
1980             Py_DECREF(o2);
1981         }
1982         else {
1983             goto error2;
1984         }
1985         // Clean up.
1986         if (!isFast)
1987             Py_DECREF(o);
1988     }
1989     return temp;
1990
1991 error3:
1992     Py_DECREF(o1);
1993     Py_DECREF(o2);
1994 error2:
1995     if (!isFast)
1996         Py_DECREF(o);
1997 error1:
1998     delete [] temp;
1999 error0:
2000     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2001     return NULL;
2002 }
2003 // end of patch
2004 //------------------------------
2005
2006
2007 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2008     if (!PyList_Check(source)) {
2009         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2010         return NULL;
2011     }
2012     int count = PyList_Size(source);
2013     wxBitmap** temp = new wxBitmap*[count];
2014     if (! temp) {
2015         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2016         return NULL;
2017     }
2018     for (int x=0; x<count; x++) {
2019         PyObject* o = PyList_GetItem(source, x);
2020         if (PyInstance_Check(o)) {
2021             wxBitmap*    pt;
2022             if (SWIG_GetPtrObj(o, (void **) &pt,"_wxBitmap_p")) {
2023                 PyErr_SetString(PyExc_TypeError,"Expected _wxBitmap_p.");
2024                 return NULL;
2025             }
2026             temp[x] = pt;
2027         }
2028         else {
2029             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2030             return NULL;
2031         }
2032     }
2033     return temp;
2034 }
2035
2036
2037
2038 wxString* wxString_LIST_helper(PyObject* source) {
2039     if (!PyList_Check(source)) {
2040         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2041         return NULL;
2042     }
2043     int count = PyList_Size(source);
2044     wxString* temp = new wxString[count];
2045     if (! temp) {
2046         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2047         return NULL;
2048     }
2049     for (int x=0; x<count; x++) {
2050         PyObject* o = PyList_GetItem(source, x);
2051 #if PYTHON_API_VERSION >= 1009
2052         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2053             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2054             return NULL;
2055         }
2056 #else
2057         if (! PyString_Check(o)) {
2058             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2059             return NULL;
2060         }
2061 #endif
2062
2063         wxString* pStr = wxString_in_helper(o);
2064         temp[x] = *pStr;
2065         delete pStr;
2066     }
2067     return temp;
2068 }
2069
2070
2071 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2072     if (!PyList_Check(source)) {
2073         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2074         return NULL;
2075     }
2076     int count                = PyList_Size(source);
2077     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2078     if (! temp) {
2079         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2080         return NULL;
2081     }
2082     for (int x=0; x<count; x++) {
2083         PyObject* o = PyList_GetItem(source, x);
2084         if (PyInstance_Check(o)) {
2085             wxAcceleratorEntry* ae;
2086             if (SWIG_GetPtrObj(o, (void **) &ae,"_wxAcceleratorEntry_p")) {
2087                 PyErr_SetString(PyExc_TypeError,"Expected _wxAcceleratorEntry_p.");
2088                 return NULL;
2089             }
2090             temp[x] = *ae;
2091         }
2092         else if (PyTuple_Check(o)) {
2093             PyObject* o1 = PyTuple_GetItem(o, 0);
2094             PyObject* o2 = PyTuple_GetItem(o, 1);
2095             PyObject* o3 = PyTuple_GetItem(o, 2);
2096             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2097         }
2098         else {
2099             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2100             return NULL;
2101         }
2102     }
2103     return temp;
2104 }
2105
2106
2107 wxPen** wxPen_LIST_helper(PyObject* source) {
2108     if (!PyList_Check(source)) {
2109         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2110         return NULL;
2111     }
2112     int count = PyList_Size(source);
2113     wxPen** temp = new wxPen*[count];
2114     if (!temp) {
2115         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2116         return NULL;
2117     }
2118     for (int x=0; x<count; x++) {
2119         PyObject* o = PyList_GetItem(source, x);
2120         if (PyInstance_Check(o)) {
2121             wxPen*  pt;
2122             if (SWIG_GetPtrObj(o, (void **) &pt,"_wxPen_p")) {
2123                 delete temp;
2124                 PyErr_SetString(PyExc_TypeError,"Expected _wxPen_p.");
2125                 return NULL;
2126             }
2127             temp[x] = pt;
2128         }
2129         else {
2130             delete temp;
2131             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2132             return NULL;
2133         }
2134     }
2135     return temp;
2136 }
2137
2138
2139 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2140     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2141     PyObject *o1, *o2;
2142
2143     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2144         return FALSE;
2145
2146     if (isFast) {
2147         o1 = PySequence_Fast_GET_ITEM(source, 0);
2148         o2 = PySequence_Fast_GET_ITEM(source, 1);
2149     }
2150     else {
2151         o1 = PySequence_GetItem(source, 0);
2152         o2 = PySequence_GetItem(source, 1);
2153     }
2154
2155     *i1 = PyInt_AsLong(o1);
2156     *i2 = PyInt_AsLong(o2);
2157
2158     if (! isFast) {
2159         Py_DECREF(o1);
2160         Py_DECREF(o2);
2161     }
2162     return TRUE;
2163 }
2164
2165
2166 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2167     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2168     PyObject *o1, *o2, *o3, *o4;
2169
2170     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2171         return FALSE;
2172
2173     if (isFast) {
2174         o1 = PySequence_Fast_GET_ITEM(source, 0);
2175         o2 = PySequence_Fast_GET_ITEM(source, 1);
2176         o3 = PySequence_Fast_GET_ITEM(source, 2);
2177         o4 = PySequence_Fast_GET_ITEM(source, 3);
2178     }
2179     else {
2180         o1 = PySequence_GetItem(source, 0);
2181         o2 = PySequence_GetItem(source, 1);
2182         o3 = PySequence_GetItem(source, 2);
2183         o4 = PySequence_GetItem(source, 3);
2184     }
2185
2186     *i1 = PyInt_AsLong(o1);
2187     *i2 = PyInt_AsLong(o2);
2188     *i3 = PyInt_AsLong(o3);
2189     *i4 = PyInt_AsLong(o4);
2190
2191     if (! isFast) {
2192         Py_DECREF(o1);
2193         Py_DECREF(o2);
2194         Py_DECREF(o3);
2195         Py_DECREF(o4);
2196     }
2197     return TRUE;
2198 }
2199
2200
2201 //----------------------------------------------------------------------
2202
2203 bool wxSize_helper(PyObject* source, wxSize** obj) {
2204
2205     // If source is an object instance then it may already be the right type
2206     if (PyInstance_Check(source)) {
2207         wxSize* ptr;
2208         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxSize_p"))
2209             goto error;
2210         *obj = ptr;
2211         return TRUE;
2212     }
2213     // otherwise a 2-tuple of integers is expected
2214     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2215         PyObject* o1 = PySequence_GetItem(source, 0);
2216         PyObject* o2 = PySequence_GetItem(source, 1);
2217         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2218             Py_DECREF(o1);
2219             Py_DECREF(o2);
2220             goto error;
2221         }
2222         **obj = wxSize(PyInt_AsLong(o1), PyInt_AsLong(o2));
2223         Py_DECREF(o1);
2224         Py_DECREF(o2);
2225         return TRUE;
2226     }
2227
2228  error:
2229     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxSize object.");
2230     return FALSE;
2231 }
2232
2233
2234 bool wxPoint_helper(PyObject* source, wxPoint** obj) {
2235
2236     // If source is an object instance then it may already be the right type
2237     if (PyInstance_Check(source)) {
2238         wxPoint* ptr;
2239         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint_p"))
2240             goto error;
2241         *obj = ptr;
2242         return TRUE;
2243     }
2244     // otherwise a length-2 sequence of integers is expected
2245     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2246         PyObject* o1 = PySequence_GetItem(source, 0);
2247         PyObject* o2 = PySequence_GetItem(source, 1);
2248         // This should really check for integers, not numbers -- but that would break code.
2249         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2250             Py_DECREF(o1);
2251             Py_DECREF(o2);
2252             goto error;
2253         }
2254         **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
2255         Py_DECREF(o1);
2256         Py_DECREF(o2);
2257         return TRUE;
2258     }
2259  error:
2260     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxPoint object.");
2261     return FALSE;
2262 }
2263
2264
2265
2266 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2267
2268     // If source is an object instance then it may already be the right type
2269     if (PyInstance_Check(source)) {
2270         wxRealPoint* ptr;
2271         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRealPoint_p"))
2272             goto error;
2273         *obj = ptr;
2274         return TRUE;
2275     }
2276     // otherwise a 2-tuple of floats is expected
2277     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2278         PyObject* o1 = PySequence_GetItem(source, 0);
2279         PyObject* o2 = PySequence_GetItem(source, 1);
2280         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2281             Py_DECREF(o1);
2282             Py_DECREF(o2);
2283             goto error;
2284         }
2285         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2286         Py_DECREF(o1);
2287         Py_DECREF(o2);
2288         return TRUE;
2289     }
2290
2291  error:
2292     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2293     return FALSE;
2294 }
2295
2296
2297
2298
2299 bool wxRect_helper(PyObject* source, wxRect** obj) {
2300
2301     // If source is an object instance then it may already be the right type
2302     if (PyInstance_Check(source)) {
2303         wxRect* ptr;
2304         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRect_p"))
2305             goto error;
2306         *obj = ptr;
2307         return TRUE;
2308     }
2309     // otherwise a 4-tuple of integers is expected
2310     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2311         PyObject* o1 = PySequence_GetItem(source, 0);
2312         PyObject* o2 = PySequence_GetItem(source, 1);
2313         PyObject* o3 = PySequence_GetItem(source, 2);
2314         PyObject* o4 = PySequence_GetItem(source, 3);
2315         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2316             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2317             Py_DECREF(o1);
2318             Py_DECREF(o2);
2319             Py_DECREF(o3);
2320             Py_DECREF(o4);
2321             goto error;
2322         }
2323         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2324                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2325         Py_DECREF(o1);
2326         Py_DECREF(o2);
2327         Py_DECREF(o3);
2328         Py_DECREF(o4);
2329         return TRUE;
2330     }
2331
2332  error:
2333     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2334     return FALSE;
2335 }
2336
2337
2338
2339 bool wxColour_helper(PyObject* source, wxColour** obj) {
2340
2341     // If source is an object instance then it may already be the right type
2342     if (PyInstance_Check(source)) {
2343         wxColour* ptr;
2344         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxColour_p"))
2345             goto error;
2346         *obj = ptr;
2347         return TRUE;
2348     }
2349     // otherwise check for a string
2350     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2351         wxString spec = Py2wxString(source);
2352         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2353             long red, green, blue;
2354             red = green = blue = 0;
2355             spec.Mid(1,2).ToLong(&red,   16);
2356             spec.Mid(3,2).ToLong(&green, 16);
2357             spec.Mid(5,2).ToLong(&blue,  16);
2358
2359             **obj = wxColour(red, green, blue);
2360             return TRUE;
2361         }
2362         else {                                       // it's a colour name
2363             **obj = wxColour(spec);
2364             return TRUE;
2365         }
2366     }
2367     // last chance: 3-tuple of integers is expected
2368     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2369         PyObject* o1 = PySequence_GetItem(source, 0);
2370         PyObject* o2 = PySequence_GetItem(source, 1);
2371         PyObject* o3 = PySequence_GetItem(source, 2);
2372         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2373             Py_DECREF(o1);
2374             Py_DECREF(o2);
2375             Py_DECREF(o3);
2376             goto error;
2377         }
2378         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2379         Py_DECREF(o1);
2380         Py_DECREF(o2);
2381         Py_DECREF(o3);
2382         return TRUE;
2383     }
2384
2385  error:
2386     PyErr_SetString(PyExc_TypeError,
2387                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2388     return FALSE;
2389 }
2390
2391
2392
2393 bool wxPoint2DDouble_helper(PyObject* source, wxPoint2DDouble** obj) {
2394     // If source is an object instance then it may already be the right type
2395     if (PyInstance_Check(source)) {
2396         wxPoint2DDouble* ptr;
2397         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint2DDouble_p"))
2398             goto error;
2399         *obj = ptr;
2400         return TRUE;
2401     }
2402     // otherwise a length-2 sequence of floats is expected
2403     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2404         PyObject* o1 = PySequence_GetItem(source, 0);
2405         PyObject* o2 = PySequence_GetItem(source, 1);
2406         // This should really check for integers, not numbers -- but that would break code.
2407         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2408             Py_DECREF(o1);
2409             Py_DECREF(o2);
2410             goto error;
2411         }
2412         **obj = wxPoint2DDouble(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2413         Py_DECREF(o1);
2414         Py_DECREF(o2);
2415         return TRUE;
2416     }
2417  error:
2418     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2DDouble object.");
2419     return FALSE;
2420 }
2421
2422
2423
2424 //----------------------------------------------------------------------
2425
2426 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2427
2428     PyObject* list = PyList_New(0);
2429     for (size_t i=0; i < arr.GetCount(); i++) {
2430 #if wxUSE_UNICODE
2431         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2432 #else
2433         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2434 #endif
2435         PyList_Append(list, str);
2436         Py_DECREF(str);
2437     }
2438     return list;
2439 }
2440
2441
2442 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2443
2444     PyObject* list = PyList_New(0);
2445     for (size_t i=0; i < arr.GetCount(); i++) {
2446         PyObject* number = PyInt_FromLong(arr[i]);
2447         PyList_Append(list, number);
2448         Py_DECREF(number);
2449     }
2450     return list;
2451 }
2452
2453
2454 //----------------------------------------------------------------------
2455 //----------------------------------------------------------------------
2456
2457
2458
2459