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 #ifdef __WXGTK__
 119     m_initialized = initialized;
 120 #endif
 121
 122     if (initialized) {
 123         if ( m_exitOnFrameDelete == Later ) {
 124             m_exitOnFrameDelete = Yes;
 125         }
 126
 127         retval = wxApp::MainLoop();
 128         OnExit();
 129     }
 130     return retval;
 131 }
 132
 133
 134 bool wxPyApp::OnInitGui() {
 135     bool rval=TRUE;
 136     wxApp::OnInitGui();  // in this case always call the base class version
 137     // wxPyBeginBlockThreads();  *** only called from within __wxStart so we already have the GIL
 138     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 139         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 140     // wxPyEndBlockThreads();    ***
 141     return rval;
 142 }
 143
 144
 145 int wxPyApp::OnExit() {
 146     int rval=0;
 147     wxPyBeginBlockThreads();
 148     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 149         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 150     wxPyEndBlockThreads();
 151     wxApp::OnExit();  // in this case always call the base class version
 152     return rval;
 153 }
 154
 155
 156 #ifdef __WXDEBUG__
 157 void wxPyApp::OnAssert(const wxChar *file,
 158                      int line,
 159                      const wxChar *cond,
 160                      const wxChar *msg) {
 161
 162     // If the OnAssert is overloaded in the Python class then call it...
 163     bool found;
 164     wxPyBeginBlockThreads();
 165     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 166         PyObject* fso = wx2PyString(file);
 167         PyObject* cso = wx2PyString(file);
 168         PyObject* mso;
 169         if (msg != NULL)
 170             mso = wx2PyString(file);
 171         else {
 172             mso = Py_None; Py_INCREF(Py_None);
 173         }
 174         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 175         Py_DECREF(fso);
 176         Py_DECREF(cso);
 177         Py_DECREF(mso);
 178     }
 179     wxPyEndBlockThreads();
 180
 181     // ...otherwise do our own thing with it
 182     if (! found) {
 183         // ignore it?
 184         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 185             return;
 186
 187         // turn it into a Python exception?
 188         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 189             wxString buf;
 190             buf.Alloc(4096);
 191             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 192             if (msg != NULL) {
 193                 buf += wxT(": ");
 194                 buf += msg;
 195             }
 196
 197             // set the exception
 198             wxPyBeginBlockThreads();
 199             PyObject* s = wx2PyString(buf);
 200             PyErr_SetObject(wxPyAssertionError, s);
 201             Py_DECREF(s);
 202             wxPyEndBlockThreads();
 203
 204             // Now when control returns to whatever API wrapper was called from
 205             // Python it should detect that an exception is set and will return
 206             // NULL, signalling the exception to Python.
 207         }
 208
 209         // Send it to the normal log destination, but only if
 210         // not _DIALOG because it will call this too
 211         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 212             wxString buf;
 213             buf.Alloc(4096);
 214             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 215                        file, line, cond);
 216             if (msg != NULL) {
 217                 buf += wxT(": ");
 218                 buf += msg;
 219             }
 220             wxLogDebug(buf);
 221         }
 222
 223         // do the normal wx assert dialog?
 224         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 225             wxApp::OnAssert(file, line, cond, msg);
 226     }
 227 }
 228 #endif
 229
 230
 231 /*static*/
 232 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 233 #ifdef __WXMAC__
 234     return s_macSupportPCMenuShortcuts;
 235 #else
 236     return 0;
 237 #endif
 238 }
 239
 240 /*static*/
 241 long wxPyApp::GetMacAboutMenuItemId() {
 242 #ifdef __WXMAC__
 243     return s_macAboutMenuItemId;
 244 #else
 245     return 0;
 246 #endif
 247 }
 248
 249 /*static*/
 250 long wxPyApp::GetMacPreferencesMenuItemId() {
 251 #ifdef __WXMAC__
 252     return s_macPreferencesMenuItemId;
 253 #else
 254     return 0;
 255 #endif
 256 }
 257
 258 /*static*/
 259 long wxPyApp::GetMacExitMenuItemId() {
 260 #ifdef __WXMAC__
 261     return s_macExitMenuItemId;
 262 #else
 263     return 0;
 264 #endif
 265 }
 266
 267 /*static*/
 268 wxString wxPyApp::GetMacHelpMenuTitleName() {
 269 #ifdef __WXMAC__
 270     return s_macHelpMenuTitleName;
 271 #else
 272     return wxEmptyString;
 273 #endif
 274 }
 275
 276 /*static*/
 277 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 278 #ifdef __WXMAC__
 279     s_macSupportPCMenuShortcuts = val;
 280 #endif
 281 }
 282
 283 /*static*/
 284 void wxPyApp::SetMacAboutMenuItemId(long val) {
 285 #ifdef __WXMAC__
 286     s_macAboutMenuItemId = val;
 287 #endif
 288 }
 289
 290 /*static*/
 291 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 292 #ifdef __WXMAC__
 293     s_macPreferencesMenuItemId = val;
 294 #endif
 295 }
 296
 297 /*static*/
 298 void wxPyApp::SetMacExitMenuItemId(long val) {
 299 #ifdef __WXMAC__
 300     s_macExitMenuItemId = val;
 301 #endif
 302 }
 303
 304 /*static*/
 305 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 306 #ifdef __WXMAC__
 307     s_macHelpMenuTitleName = val;
 308 #endif
 309 }
 310
 311
 312
 313 //---------------------------------------------------------------------
 314 //----------------------------------------------------------------------
 315
 316
 317 #if 0
 318 static char* wxPyCopyCString(const wxChar* src)
 319 {
 320     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 321     size_t len = strlen(buff);
 322     char*  dest = new char[len+1];
 323     strcpy(dest, buff);
 324     return dest;
 325 }
 326
 327 #if wxUSE_UNICODE
 328 static char* wxPyCopyCString(const char* src)   // we need a char version too
 329 {
 330     size_t len = strlen(src);
 331     char*  dest = new char[len+1];
 332     strcpy(dest, src);
 333     return dest;
 334 }
 335 #endif
 336
 337 static wxChar* wxPyCopyWString(const char *src)
 338 {
 339     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 340     wxString str(src, *wxConvCurrent);
 341     return copystring(str);
 342 }
 343
 344 #if wxUSE_UNICODE
 345 static wxChar* wxPyCopyWString(const wxChar *src)
 346 {
 347     return copystring(src);
 348 }
 349 #endif
 350 #endif
 351
 352
 353 //----------------------------------------------------------------------
 354
 355 // This function is called when the wxc module is imported to do some initial
 356 // setup.  (Before there is a wxApp object.)
 357 void __wxPreStart(PyObject* moduleDict)
 358 {
 359
 360 #ifdef __WXMSW__
 361 //    wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 362 #endif
 363
 364 #ifdef WXP_WITH_THREAD
 365     PyEval_InitThreads();
 366     wxPyTStates = new wxPyThreadStateArray;
 367     wxPyTMutex = new wxMutex;
 368 #endif
 369
 370     // Ensure that the build options in the DLL (or whatever) match this build
 371     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 372
 373     // Create an exception object to use for wxASSERTions
 374     wxPyAssertionError = PyErr_NewException("wxPython.wxc.wxPyAssertionError",
 375                                             PyExc_AssertionError, NULL);
 376     PyDict_SetItemString(moduleDict, "wxPyAssertionError", wxPyAssertionError);
 377 }
 378
 379
 380
 381 // Initialize wxWindows and bootstrap the user application by calling the
 382 // wxApp's OnInit, which is a parameter to this funciton.  See wxApp.__init__
 383 // in _extras.py to learn how the bootstrap is started.
 384 PyObject* __wxStart(PyObject* /* self */, PyObject* args)
 385 {
 386     PyObject*   onInitFunc = NULL;
 387     PyObject*   arglist= NULL;
 388     PyObject*   result = NULL;
 389     PyObject*   pyint = NULL;
 390     long        bResult;
 391
 392     if (!PyArg_ParseTuple(args, "O", &onInitFunc))
 393         return NULL;
 394
 395     // Get any command-line args passed to this program from the sys module
 396     int argc = 0;
 397     char** argv = NULL;
 398     PyObject* sysargv = PySys_GetObject("argv");
 399     if (sysargv != NULL) {
 400         argc = PyList_Size(sysargv);
 401         argv = new char*[argc+1];
 402         int x;
 403         for(x=0; x<argc; x++) {
 404             PyObject *pyArg = PyList_GetItem(sysargv, x);
 405             argv[x] = PyString_AsString(pyArg);
 406         }
 407         argv[argc] = NULL;
 408     }
 409
 410     if (! wxEntryStart(argc, argv) ) {
 411         PyErr_SetString(PyExc_SystemError,      // is this the right one?
 412                         "wxEntryStart failed!");
 413         goto error;
 414     }
 415     delete [] argv;
 416
 417
 418     // The stock objects were all NULL when they were loaded into
 419     // SWIG generated proxies, so re-init those now...
 420     wxPy_ReinitStockObjects();
 421
 422
 423     // Call the Python wxApp's OnInit function
 424     arglist = PyTuple_New(0);
 425     result = PyEval_CallObject(onInitFunc, arglist);
 426     Py_DECREF(arglist);
 427     if (!result) {      // an exception was raised.
 428         return NULL;
 429     }
 430
 431     pyint = PyNumber_Int(result);
 432     if (! pyint) {
 433         PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 434         goto error;
 435     }
 436     bResult = PyInt_AS_LONG(pyint);
 437     if (! bResult) {
 438         PyErr_SetString(PyExc_SystemExit, "OnInit returned FALSE, exiting...");
 439         goto error;
 440     }
 441
 442 #ifdef __WXGTK__
 443     wxTheApp->m_initialized = (wxTopLevelWindows.GetCount() > 0);
 444 #endif
 445
 446     Py_DECREF(result);
 447     Py_DECREF(pyint);
 448     Py_INCREF(Py_None);
 449     return Py_None;
 450
 451  error:
 452     Py_XDECREF(result);
 453     Py_XDECREF(pyint);
 454     return NULL;
 455 }
 456
 457
 458
 459 void __wxCleanup() {
 460     wxPyDoingCleanup = TRUE;
 461     if (wxPyDoCleanup)
 462         wxEntryCleanup();
 463 #ifdef WXP_WITH_THREAD
 464     delete wxPyTMutex;
 465     wxPyTMutex = NULL;
 466     wxPyTStates->Empty();
 467     delete wxPyTStates;
 468     wxPyTStates = NULL;
 469 #endif
 470 }
 471
 472
 473
 474
 475 PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 476 {
 477
 478     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 479         return NULL;
 480
 481     if (!PyDict_Check(wxPython_dict)) {
 482         PyErr_SetString(PyExc_TypeError, "_wxSetDictionary must have dictionary object!");
 483         return NULL;
 484     }
 485
 486     if (! wxPyPtrTypeMap)
 487         wxPyPtrTypeMap = PyDict_New();
 488     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 489
 490
 491 #ifdef __WXMOTIF__
 492 #define wxPlatform "__WXMOTIF__"
 493 #endif
 494 #ifdef __WXX11__
 495 #define wxPlatform "__WXX11__"
 496 #endif
 497 #ifdef __WXGTK__
 498 #define wxPlatform "__WXGTK__"
 499 #endif
 500 #if defined(__WIN32__) || defined(__WXMSW__)
 501 #define wxPlatform "__WXMSW__"
 502 #endif
 503 #ifdef __WXMAC__
 504 #define wxPlatform "__WXMAC__"
 505 #endif
 506
 507 #ifdef __WXDEBUG__
 508     int wxdebug = 1;
 509 #else
 510     int wxdebug = 0;
 511 #endif
 512
 513     PyDict_SetItemString(wxPython_dict, "wxPlatform", PyString_FromString(wxPlatform));
 514     PyDict_SetItemString(wxPython_dict, "wxUSE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 515     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 516
 517     Py_INCREF(Py_None);
 518     return Py_None;
 519 }
 520
 521
 522 //---------------------------------------------------------------------------
 523
 524 // The stock objects are no longer created when the wxc module is imported, but
 525 // only after the app object has been created.  This function will be called before
 526 // OnInit is called so we can hack the new pointer values into the obj.this attributes.
 527
 528 void wxPy_ReinitStockObjects()
 529 {
 530     char ptrbuf[128];
 531     PyObject* obj;
 532     PyObject* ptrobj;
 533
 534
 535
 536 #define REINITOBJ(name, type) \
 537     obj = PyDict_GetItemString(wxPython_dict, #name); \
 538     wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
 539     SWIG_MakePtr(ptrbuf, (char *) name, "_" #type "_p"); \
 540     ptrobj = PyString_FromString(ptrbuf); \
 541     PyObject_SetAttrString(obj, "this", ptrobj); \
 542     Py_DECREF(ptrobj)
 543
 544 #define REINITOBJ2(name, type) \
 545     obj = PyDict_GetItemString(wxPython_dict, #name); \
 546     wxASSERT_MSG(obj != NULL, wxT("Unable to find stock object for " #name)); \
 547     SWIG_MakePtr(ptrbuf, (char *) &name, "_" #type "_p"); \
 548     ptrobj = PyString_FromString(ptrbuf); \
 549     PyObject_SetAttrString(obj, "this", ptrobj); \
 550     Py_DECREF(ptrobj)
 551
 552
 553     REINITOBJ(wxNORMAL_FONT, wxFont);
 554     REINITOBJ(wxSMALL_FONT, wxFont);
 555     REINITOBJ(wxITALIC_FONT, wxFont);
 556     REINITOBJ(wxSWISS_FONT, wxFont);
 557
 558     REINITOBJ(wxRED_PEN, wxPen);
 559     REINITOBJ(wxCYAN_PEN, wxPen);
 560     REINITOBJ(wxGREEN_PEN, wxPen);
 561     REINITOBJ(wxBLACK_PEN, wxPen);
 562     REINITOBJ(wxWHITE_PEN, wxPen);
 563     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 564     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 565     REINITOBJ(wxGREY_PEN, wxPen);
 566     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 567     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 568
 569     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 570     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 571     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 572     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 573     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 574     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 575     REINITOBJ(wxRED_BRUSH, wxBrush);
 576     REINITOBJ(wxGREY_BRUSH, wxBrush);
 577     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 578     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 579
 580     REINITOBJ(wxBLACK, wxColour);
 581     REINITOBJ(wxWHITE, wxColour);
 582     REINITOBJ(wxRED, wxColour);
 583     REINITOBJ(wxBLUE, wxColour);
 584     REINITOBJ(wxGREEN, wxColour);
 585     REINITOBJ(wxCYAN, wxColour);
 586     REINITOBJ(wxLIGHT_GREY, wxColour);
 587
 588     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 589     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 590     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 591
 592     REINITOBJ2(wxNullBitmap, wxBitmap);
 593     REINITOBJ2(wxNullIcon, wxIcon);
 594     REINITOBJ2(wxNullCursor, wxCursor);
 595     REINITOBJ2(wxNullPen, wxPen);
 596     REINITOBJ2(wxNullBrush, wxBrush);
 597     REINITOBJ2(wxNullPalette, wxPalette);
 598     REINITOBJ2(wxNullFont, wxFont);
 599     REINITOBJ2(wxNullColour, wxColour);
 600
 601     REINITOBJ(wxTheFontList, wxFontList);
 602     REINITOBJ(wxThePenList, wxPenList);
 603     REINITOBJ(wxTheBrushList, wxBrushList);
 604     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 605
 606
 607     REINITOBJ(wxTheClipboard, wxClipboard);
 608     REINITOBJ(wxTheMimeTypesManager, wxMimeTypesManager);
 609     REINITOBJ2(wxDefaultValidator, wxValidator);
 610     REINITOBJ2(wxNullImage, wxImage);
 611     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 612
 613 #undef REINITOBJ
 614 #undef REINITOBJ2
 615 }
 616
 617 //---------------------------------------------------------------------------
 618
 619 void wxPyClientData_dtor(wxPyClientData* self) {
 620     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 621                                         // may have already garbage collected the object...
 622         wxPyBeginBlockThreads();
 623         Py_DECREF(self->m_obj);
 624         wxPyEndBlockThreads();
 625     }
 626 }
 627
 628 void wxPyUserData_dtor(wxPyUserData* self) {
 629     if (! wxPyDoingCleanup) {
 630         wxPyBeginBlockThreads();
 631         Py_DECREF(self->m_obj);
 632         wxPyEndBlockThreads();
 633     }
 634 }
 635
 636
 637 // This is called when an OOR controled object is being destroyed.  Although
 638 // the C++ object is going away there is no way to force the Python object
 639 // (and all references to it) to die too.  This causes problems (crashes) in
 640 // wxPython when a python shadow object attempts to call a C++ method using
 641 // the now bogus pointer... So to try and prevent this we'll do a little black
 642 // magic and change the class of the python instance to a class that will
 643 // raise an exception for any attempt to call methods with it.  See
 644 // _wxPyDeadObject in _extras.py for the implementation of this class.
 645 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 646
 647     static PyObject* deadObjectClass = NULL;
 648
 649     wxPyBeginBlockThreads();
 650     if (deadObjectClass == NULL) {
 651         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 652         wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 653         Py_INCREF(deadObjectClass);
 654     }
 655
 656
 657     // Only if there is more than one reference to the object
 658     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 659         wxASSERT_MSG(PyInstance_Check(self->m_obj), wxT("m_obj not an instance!?!?!"));
 660
 661         // Call __del__, if there is one.
 662         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 663         if (func) {
 664             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 665             Py_XDECREF(rv);
 666             Py_DECREF(func);
 667         }
 668         if (PyErr_Occurred())
 669             PyErr_Clear();      // just ignore it for now
 670
 671         // Clear the instance's dictionary
 672         PyInstanceObject* inst = (PyInstanceObject*)self->m_obj;
 673         PyDict_Clear(inst->in_dict);
 674
 675         // put the name of the old class into the instance, and then reset the
 676         // class to be the dead class.
 677         PyDict_SetItemString(inst->in_dict, "_name", inst->in_class->cl_name);
 678         inst->in_class = (PyClassObject*)deadObjectClass;
 679         Py_INCREF(deadObjectClass);
 680     }
 681
 682     // m_obj is DECREF's in the base class dtor...
 683     wxPyEndBlockThreads();
 684 }
 685
 686
 687 //---------------------------------------------------------------------------
 688 // Stuff used by OOR to find the right wxPython class type to return and to
 689 // build it.
 690
 691
 692 // The pointer type map is used when the "pointer" type name generated by SWIG
 693 // is not the same as the shadow class name, for example wxPyTreeCtrl
 694 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 695 // so we'll just make it a Python dictionary in the wx module's namespace.
 696 // (See __wxSetDictionary)
 697 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 698     if (! wxPyPtrTypeMap)
 699         wxPyPtrTypeMap = PyDict_New();
 700     PyDict_SetItemString(wxPyPtrTypeMap,
 701                          (char*)commonName,
 702                          PyString_FromString((char*)ptrName));
 703 }
 704
 705
 706
 707 PyObject* wxPyClassExists(const wxString& className) {
 708
 709     PyObject* item;
 710     wxString  name(className);
 711     char      buff[64];               // should always be big enough...
 712
 713     if (!className)
 714         return NULL;
 715
 716     // Try the name as-is first
 717     sprintf(buff, "%sPtr", (const char*)name.mbc_str());
 718     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
 719
 720     // if not found see if there is a mapped name for it
 721     if ( ! classobj) {
 722         if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
 723             name = wxString(PyString_AsString(item), *wxConvCurrent);
 724             sprintf(buff, "%sPtr", (const char*)name.mbc_str());
 725             classobj = PyDict_GetItemString(wxPython_dict, buff);
 726         }
 727     }
 728
 729     return classobj;  // returns NULL if not found
 730 }
 731
 732
 733 PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
 734     PyObject* target = NULL;
 735     bool      isEvtHandler = FALSE;
 736
 737     if (source) {
 738         // If it's derived from wxEvtHandler then there may
 739         // already be a pointer to a Python object that we can use
 740         // in the OOR data.
 741         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 742             isEvtHandler = TRUE;
 743             wxEvtHandler* eh = (wxEvtHandler*)source;
 744             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 745             if (data) {
 746                 target = data->m_obj;
 747                 Py_INCREF(target);
 748             }
 749         }
 750
 751         if (! target) {
 752             // Otherwise make it the old fashioned way by making a
 753             // new shadow object and putting this pointer in it.
 754             wxClassInfo* info  = source->GetClassInfo();
 755             wxString     name  = info->GetClassName();
 756             PyObject*    klass = wxPyClassExists(name);
 757             while (info && !klass) {
 758                 name = (wxChar*)info->GetBaseClassName1();
 759                 info = wxClassInfo::FindClass(name);
 760                 klass = wxPyClassExists(name);
 761             }
 762             if (info) {
 763                 target = wxPyConstructObject(source, name, klass, FALSE);
 764                 if (target && isEvtHandler)
 765                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
 766             } else {
 767                 wxString msg(wxT("wxPython class not found for "));
 768                 msg += source->GetClassInfo()->GetClassName();
 769                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
 770                 target = NULL;
 771             }
 772         }
 773     } else {  // source was NULL so return None.
 774         Py_INCREF(Py_None); target = Py_None;
 775     }
 776     return target;
 777 }
 778
 779
 780 PyObject*  wxPyMake_wxSizer(wxSizer* source) {
 781     PyObject* target = NULL;
 782
 783     if (source && wxIsKindOf(source, wxSizer)) {
 784         // If it's derived from wxSizer then there may
 785         // already be a pointer to a Python object that we can use
 786         // in the OOR data.
 787         wxSizer* sz = (wxSizer*)source;
 788         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
 789         if (data) {
 790             target = data->m_obj;
 791             Py_INCREF(target);
 792         }
 793     }
 794     if (! target) {
 795         target = wxPyMake_wxObject(source, FALSE);
 796         if (target != Py_None)
 797             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
 798     }
 799     return target;
 800 }
 801
 802
 803
 804 //---------------------------------------------------------------------------
 805
 806 PyObject* wxPyConstructObject(void* ptr,
 807                               const wxString& className,
 808                               PyObject* klass,
 809                               int setThisOwn) {
 810
 811     PyObject* obj;
 812     PyObject* arg;
 813     PyObject* item;
 814     wxString  name(className);
 815     char      swigptr[64];      // should always be big enough...
 816     char      buff[64];
 817
 818     if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
 819         name = wxString(PyString_AsString(item), *wxConvCurrent);
 820     }
 821     sprintf(buff, "_%s_p", (const char*)name.mbc_str());
 822     SWIG_MakePtr(swigptr, ptr, buff);
 823
 824     arg = Py_BuildValue("(s)", swigptr);
 825     obj = PyInstance_New(klass, arg, NULL);
 826     Py_DECREF(arg);
 827
 828     if (setThisOwn) {
 829         PyObject* one = PyInt_FromLong(1);
 830         PyObject_SetAttrString(obj, "thisown", one);
 831         Py_DECREF(one);
 832     }
 833
 834     return obj;
 835 }
 836
 837
 838 PyObject* wxPyConstructObject(void* ptr,
 839                               const wxString& className,
 840                               int setThisOwn) {
 841     if (!ptr) {
 842         Py_INCREF(Py_None);
 843         return Py_None;
 844     }
 845
 846     char    buff[64];               // should always be big enough...
 847     sprintf(buff, "%sPtr", (const char*)className.mbc_str());
 848
 849     wxASSERT_MSG(wxPython_dict, wxT("wxPython_dict is not set yet!!"));
 850
 851     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
 852     if (! classobj) {
 853         wxString msg(wxT("wxPython class not found for "));
 854         msg += className;
 855         PyErr_SetString(PyExc_NameError, msg.mbc_str());
 856         return NULL;
 857     }
 858
 859     return wxPyConstructObject(ptr, className, classobj, setThisOwn);
 860 }
 861
 862
 863 //---------------------------------------------------------------------------
 864
 865
 866 #ifdef WXP_WITH_THREAD
 867 inline
 868 unsigned long wxPyGetCurrentThreadId() {
 869     return wxThread::GetCurrentId();
 870 }
 871
 872 static PyThreadState* gs_shutdownTState;
 873 static
 874 PyThreadState* wxPyGetThreadState() {
 875     if (wxPyTMutex == NULL) // Python is shutting down...
 876         return gs_shutdownTState;
 877
 878     unsigned long ctid = wxPyGetCurrentThreadId();
 879     PyThreadState* tstate = NULL;
 880
 881     wxPyTMutex->Lock();
 882     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 883         wxPyThreadState& info = wxPyTStates->Item(i);
 884         if (info.tid == ctid) {
 885             tstate = info.tstate;
 886             break;
 887         }
 888     }
 889     wxPyTMutex->Unlock();
 890     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
 891     return tstate;
 892 }
 893
 894 static
 895 void wxPySaveThreadState(PyThreadState* tstate) {
 896     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
 897         gs_shutdownTState = tstate;
 898         return;
 899     }
 900     unsigned long ctid = wxPyGetCurrentThreadId();
 901     wxPyTMutex->Lock();
 902     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 903         wxPyThreadState& info = wxPyTStates->Item(i);
 904         if (info.tid == ctid) {
 905 #if 0
 906             if (info.tstate != tstate)
 907                 wxLogMessage("*** tstate mismatch!???");
 908 #endif
 909             // info.tstate = tstate;    *** DO NOT update existing ones???
 910             // Normally it will never change, but apparently COM callbacks
 911             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
 912             // tstate which will then be garbage the next time we try to use
 913             // it...
 914             wxPyTMutex->Unlock();
 915             return;
 916         }
 917     }
 918     // not found, so add it...
 919     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
 920     wxPyTMutex->Unlock();
 921 }
 922
 923 #endif
 924
 925
 926 // Calls from Python to wxWindows code are wrapped in calls to these
 927 // functions:
 928
 929 PyThreadState* wxPyBeginAllowThreads() {
 930 #ifdef WXP_WITH_THREAD
 931     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
 932     wxPySaveThreadState(saved);
 933     return saved;
 934 #else
 935     return NULL;
 936 #endif
 937 }
 938
 939 void wxPyEndAllowThreads(PyThreadState* saved) {
 940 #ifdef WXP_WITH_THREAD
 941     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
 942 #endif
 943 }
 944
 945
 946
 947 // Calls from wxWindows back to Python code, or even any PyObject
 948 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
 949
 950 void wxPyBeginBlockThreads() {
 951 #ifdef WXP_WITH_THREAD
 952     PyThreadState* tstate = wxPyGetThreadState();
 953     PyEval_RestoreThread(tstate);
 954 #endif
 955 }
 956
 957
 958 void wxPyEndBlockThreads() {
 959 #ifdef WXP_WITH_THREAD
 960     // Is there any need to save it again?
 961     // PyThreadState* tstate =
 962     PyEval_SaveThread();
 963 #endif
 964 }
 965
 966
 967 //---------------------------------------------------------------------------
 968 // wxPyInputStream and wxPyCBInputStream methods
 969
 970
 971 void wxPyInputStream::close() {
 972     /* do nothing for now */
 973 }
 974
 975 void wxPyInputStream::flush() {
 976     /* do nothing for now */
 977 }
 978
 979 bool wxPyInputStream::eof() {
 980     if (m_wxis)
 981         return m_wxis->Eof();
 982     else
 983         return TRUE;
 984 }
 985
 986 wxPyInputStream::~wxPyInputStream() {
 987     /* do nothing */
 988 }
 989
 990
 991
 992
 993 PyObject* wxPyInputStream::read(int size) {
 994     PyObject* obj = NULL;
 995     wxMemoryBuffer buf;
 996     const int BUFSIZE = 1024;
 997
 998     // check if we have a real wxInputStream to work with
 999     if (!m_wxis) {
1000         wxPyBeginBlockThreads();
1001         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1002         wxPyEndBlockThreads();
1003         return NULL;
1004     }
1005
1006     if (size < 0) {
1007         // read while bytes are available on the stream
1008         while ( m_wxis->CanRead() ) {
1009             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1010             buf.UngetAppendBuf(m_wxis->LastRead());
1011         }
1012
1013     } else {  // Read only size number of characters
1014         m_wxis->Read(buf.GetWriteBuf(size), size);
1015         buf.UngetWriteBuf(m_wxis->LastRead());
1016     }
1017
1018     // error check
1019     wxPyBeginBlockThreads();
1020     wxStreamError err = m_wxis->GetLastError();
1021     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1022         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1023     }
1024     else {
1025         // We use only strings for the streams, not unicode
1026         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1027     }
1028     wxPyEndBlockThreads();
1029     return obj;
1030 }
1031
1032
1033 PyObject* wxPyInputStream::readline(int size) {
1034     PyObject* obj = NULL;
1035     wxMemoryBuffer buf;
1036     int i;
1037     char ch;
1038
1039     // check if we have a real wxInputStream to work with
1040     if (!m_wxis) {
1041         wxPyBeginBlockThreads();
1042         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1043         wxPyEndBlockThreads();
1044         return NULL;
1045     }
1046
1047     // read until \n or byte limit reached
1048     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1049         ch = m_wxis->GetC();
1050         buf.AppendByte(ch);
1051     }
1052
1053     // errorcheck
1054     wxPyBeginBlockThreads();
1055     wxStreamError err = m_wxis->GetLastError();
1056     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1057         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1058     }
1059     else {
1060         // We use only strings for the streams, not unicode
1061         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1062     }
1063     wxPyEndBlockThreads();
1064     return obj;
1065 }
1066
1067
1068 PyObject* wxPyInputStream::readlines(int sizehint) {
1069     PyObject* pylist;
1070
1071     // check if we have a real wxInputStream to work with
1072     if (!m_wxis) {
1073         wxPyBeginBlockThreads();
1074         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1075         wxPyEndBlockThreads();
1076         return NULL;
1077     }
1078
1079     // init list
1080     wxPyBeginBlockThreads();
1081     pylist = PyList_New(0);
1082     if (!pylist) {
1083         wxPyBeginBlockThreads();
1084         PyErr_NoMemory();
1085         wxPyEndBlockThreads();
1086         return NULL;
1087     }
1088
1089     // read sizehint bytes or until EOF
1090     int i;
1091     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1092         PyObject* s = this->readline();
1093         if (s == NULL) {
1094             wxPyBeginBlockThreads();
1095             Py_DECREF(pylist);
1096             wxPyEndBlockThreads();
1097             return NULL;
1098         }
1099         wxPyBeginBlockThreads();
1100         PyList_Append(pylist, s);
1101         i += PyString_Size(s);
1102         wxPyEndBlockThreads();
1103     }
1104
1105     // error check
1106     wxStreamError err = m_wxis->GetLastError();
1107     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1108         wxPyBeginBlockThreads();
1109         Py_DECREF(pylist);
1110         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1111         wxPyEndBlockThreads();
1112         return NULL;
1113     }
1114
1115     return pylist;
1116 }
1117
1118
1119 void wxPyInputStream::seek(int offset, int whence) {
1120     if (m_wxis)
1121         m_wxis->SeekI(offset, wxSeekMode(whence));
1122 }
1123
1124 int wxPyInputStream::tell(){
1125     if (m_wxis)
1126         return m_wxis->TellI();
1127     else return 0;
1128 }
1129
1130
1131
1132
1133 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1134     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1135 {}
1136
1137
1138 wxPyCBInputStream::~wxPyCBInputStream() {
1139     if (m_block) wxPyBeginBlockThreads();
1140     Py_XDECREF(m_read);
1141     Py_XDECREF(m_seek);
1142     Py_XDECREF(m_tell);
1143     if (m_block) wxPyEndBlockThreads();
1144 }
1145
1146
1147 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1148     if (block) wxPyBeginBlockThreads();
1149
1150     PyObject* read = getMethod(py, "read");
1151     PyObject* seek = getMethod(py, "seek");
1152     PyObject* tell = getMethod(py, "tell");
1153
1154     if (!read) {
1155         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1156         Py_XDECREF(read);
1157         Py_XDECREF(seek);
1158         Py_XDECREF(tell);
1159         if (block) wxPyEndBlockThreads();
1160         return NULL;
1161     }
1162
1163     if (block) wxPyEndBlockThreads();
1164     return new wxPyCBInputStream(read, seek, tell, block);
1165 }
1166
1167
1168 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1169     return wxPyCBInputStream::create(py, block);
1170 }
1171
1172 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1173     if (!PyObject_HasAttrString(py, name))
1174         return NULL;
1175     PyObject* o = PyObject_GetAttrString(py, name);
1176     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1177         Py_DECREF(o);
1178         return NULL;
1179     }
1180     return o;
1181 }
1182
1183
1184 size_t wxPyCBInputStream::GetSize() const {
1185     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1186     if (m_seek && m_tell) {
1187         off_t temp = self->OnSysTell();
1188         off_t ret = self->OnSysSeek(0, wxFromEnd);
1189         self->OnSysSeek(temp, wxFromStart);
1190         return ret;
1191     }
1192     else
1193         return 0;
1194 }
1195
1196
1197 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1198     if (bufsize == 0)
1199         return 0;
1200
1201     wxPyBeginBlockThreads();
1202     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1203     PyObject* result = PyEval_CallObject(m_read, arglist);
1204     Py_DECREF(arglist);
1205
1206     size_t o = 0;
1207     if ((result != NULL) && PyString_Check(result)) {
1208         o = PyString_Size(result);
1209         if (o == 0)
1210             m_lasterror = wxSTREAM_EOF;
1211         if (o > bufsize)
1212             o = bufsize;
1213         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1214         Py_DECREF(result);
1215
1216     }
1217     else
1218         m_lasterror = wxSTREAM_READ_ERROR;
1219     wxPyEndBlockThreads();
1220     return o;
1221 }
1222
1223 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1224     m_lasterror = wxSTREAM_WRITE_ERROR;
1225     return 0;
1226 }
1227
1228 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
1229     wxPyBeginBlockThreads();
1230 #ifdef _LARGE_FILES
1231     // off_t is a 64-bit value...
1232     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
1233 #else
1234     PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1235 #endif
1236     PyObject* result = PyEval_CallObject(m_seek, arglist);
1237     Py_DECREF(arglist);
1238     Py_XDECREF(result);
1239     wxPyEndBlockThreads();
1240     return OnSysTell();
1241 }
1242
1243
1244 off_t wxPyCBInputStream::OnSysTell() const {
1245     wxPyBeginBlockThreads();
1246     PyObject* arglist = Py_BuildValue("()");
1247     PyObject* result = PyEval_CallObject(m_tell, arglist);
1248     Py_DECREF(arglist);
1249     off_t o = 0;
1250     if (result != NULL) {
1251 #ifdef _LARGE_FILES
1252         if (PyLong_Check(result))
1253             o = PyLong_AsLongLong(result);
1254         else
1255 #else
1256         o = PyInt_AsLong(result);
1257 #endif
1258         Py_DECREF(result);
1259     };
1260     wxPyEndBlockThreads();
1261     return o;
1262 }
1263
1264 //----------------------------------------------------------------------
1265
1266 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1267
1268 wxPyCallback::wxPyCallback(PyObject* func) {
1269     m_func = func;
1270     Py_INCREF(m_func);
1271 }
1272
1273 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1274     m_func = other.m_func;
1275     Py_INCREF(m_func);
1276 }
1277
1278 wxPyCallback::~wxPyCallback() {
1279     wxPyBeginBlockThreads();
1280     Py_DECREF(m_func);
1281     wxPyEndBlockThreads();
1282 }
1283
1284
1285
1286 // This function is used for all events destined for Python event handlers.
1287 void wxPyCallback::EventThunker(wxEvent& event) {
1288     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1289     PyObject*       func = cb->m_func;
1290     PyObject*       result;
1291     PyObject*       arg;
1292     PyObject*       tuple;
1293     bool            checkSkip = FALSE;
1294
1295     wxPyBeginBlockThreads();
1296     wxString className = event.GetClassInfo()->GetClassName();
1297
1298     // If the event is one of these types then pass the original
1299     // event object instead of the one passed to us.
1300     if ( className == wxT("wxPyEvent") ) {
1301         arg =       ((wxPyEvent*)&event)->GetSelf();
1302         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1303     }
1304     else if ( className == wxT("wxPyCommandEvent") ) {
1305         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1306         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1307     }
1308     else {
1309         arg = wxPyConstructObject((void*)&event, className);
1310     }
1311
1312     // Call the event handler, passing the event object
1313     tuple = PyTuple_New(1);
1314     PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1315     result = PyEval_CallObject(func, tuple);
1316     if ( result ) {
1317         Py_DECREF(result);   // result is ignored, but we still need to decref it
1318         PyErr_Clear();       // Just in case...
1319     } else {
1320         PyErr_Print();
1321     }
1322
1323     if ( checkSkip ) {
1324         // if the event object was one of our special types and
1325         // it had been cloned, then we need to extract the Skipped
1326         // value from the original and set it in the clone.
1327         result = PyObject_CallMethod(arg, "GetSkipped", "");
1328         if ( result ) {
1329             event.Skip(PyInt_AsLong(result));
1330             Py_DECREF(result);
1331         } else {
1332             PyErr_Print();
1333         }
1334     }
1335
1336     Py_DECREF(tuple);
1337     wxPyEndBlockThreads();
1338 }
1339
1340
1341 //----------------------------------------------------------------------
1342
1343 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1344       m_lastFound = NULL;
1345       m_self = other.m_self;
1346       m_class = other.m_class;
1347       if (m_self) {
1348           Py_INCREF(m_self);
1349           Py_INCREF(m_class);
1350       }
1351 }
1352
1353
1354 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1355     m_self = self;
1356     m_class = klass;
1357     m_incRef = incref;
1358     if (incref) {
1359         Py_INCREF(m_self);
1360         Py_INCREF(m_class);
1361     }
1362 }
1363
1364
1365 #if PYTHON_API_VERSION >= 1011
1366
1367 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1368 // in which the method was defined.  Starting with 2.2 it returns
1369 // "class that asked for the method" which seems totally bogus to me
1370 // but apprently it fixes some obscure problem waiting to happen in
1371 // Python.  Since the API was not documented Guido and the gang felt
1372 // safe in changing it.  Needless to say that totally screwed up the
1373 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1374 // code to find the class where the method is actually defined...
1375
1376 static
1377 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1378 {
1379     int i, n;
1380
1381     if (PyType_Check(klass)) {      // new style classes
1382         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1383         // (TODO: This part is not tested yet, so I'm not sure it is correct...)
1384         PyTypeObject* type = (PyTypeObject*)klass;
1385         PyObject *mro, *res, *base, *dict;
1386         /* Look in tp_dict of types in MRO */
1387         mro = type->tp_mro;
1388         assert(PyTuple_Check(mro));
1389         n = PyTuple_GET_SIZE(mro);
1390         for (i = 0; i < n; i++) {
1391             base = PyTuple_GET_ITEM(mro, i);
1392             if (PyClass_Check(base))
1393                 dict = ((PyClassObject *)base)->cl_dict;
1394             else {
1395                 assert(PyType_Check(base));
1396                 dict = ((PyTypeObject *)base)->tp_dict;
1397             }
1398             assert(dict && PyDict_Check(dict));
1399             res = PyDict_GetItem(dict, name);
1400             if (res != NULL)
1401                 return base;
1402         }
1403         return NULL;
1404     }
1405
1406     else if (PyClass_Check(klass)) { // old style classes
1407         // This code is borrowed/adapted from class_lookup in classobject.c
1408         PyClassObject* cp = (PyClassObject*)klass;
1409         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1410         if (value != NULL) {
1411             return (PyObject*)cp;
1412         }
1413         n = PyTuple_Size(cp->cl_bases);
1414         for (i = 0; i < n; i++) {
1415             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1416             PyObject *v = PyFindClassWithAttr(base, name);
1417             if (v != NULL)
1418                 return v;
1419         }
1420         return NULL;
1421     }
1422     return NULL;
1423 }
1424 #endif
1425
1426
1427 static
1428 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1429 {
1430     PyObject* mgc = PyMethod_GET_CLASS(method);
1431
1432 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1433     return mgc;
1434 #else                             // 2.2 and after, the hard way...
1435
1436     PyObject* nameo = PyString_FromString(name);
1437     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1438     Py_DECREF(nameo);
1439     return klass;
1440 #endif
1441 }
1442
1443
1444
1445 bool wxPyCallbackHelper::findCallback(const char* name) const {
1446     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1447     self->m_lastFound = NULL;
1448
1449     // If the object (m_self) has an attibute of the given name...
1450     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1451         PyObject *method, *klass;
1452         method = PyObject_GetAttrString(m_self, (char*)name);
1453
1454         // ...and if that attribute is a method, and if that method's class is
1455         // not from a base class...
1456         if (PyMethod_Check(method) &&
1457             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1458             ((klass == m_class) || PyClass_IsSubclass(klass, m_class))) {
1459
1460             // ...then we'll save a pointer to the method so callCallback can call it.
1461             self->m_lastFound = method;
1462         }
1463         else {
1464             Py_DECREF(method);
1465         }
1466     }
1467     return m_lastFound != NULL;
1468 }
1469
1470
1471 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1472     PyObject*   result;
1473     int         retval = FALSE;
1474
1475     result = callCallbackObj(argTuple);
1476     if (result) {                       // Assumes an integer return type...
1477         retval = PyInt_AsLong(result);
1478         Py_DECREF(result);
1479         PyErr_Clear();                  // forget about it if it's not...
1480     }
1481     return retval;
1482 }
1483
1484 // Invoke the Python callable object, returning the raw PyObject return
1485 // value.  Caller should DECREF the return value and also call PyEval_SaveThread.
1486 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1487     PyObject* result;
1488
1489     // Save a copy of the pointer in case the callback generates another
1490     // callback.  In that case m_lastFound will have a different value when
1491     // it gets back here...
1492     PyObject* method = m_lastFound;
1493
1494     result = PyEval_CallObject(method, argTuple);
1495     Py_DECREF(argTuple);
1496     Py_DECREF(method);
1497     if (!result) {
1498         PyErr_Print();
1499     }
1500     return result;
1501 }
1502
1503
1504 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1505     cbh.setSelf(self, klass, incref);
1506 }
1507
1508 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1509     return cbh.findCallback(name);
1510 }
1511
1512 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1513     return cbh.callCallback(argTuple);
1514 }
1515
1516 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1517     return cbh.callCallbackObj(argTuple);
1518 }
1519
1520
1521 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1522     if (cbh->m_incRef) {
1523         wxPyBeginBlockThreads();
1524         Py_XDECREF(cbh->m_self);
1525         Py_XDECREF(cbh->m_class);
1526         wxPyEndBlockThreads();
1527     }
1528 }
1529
1530 //---------------------------------------------------------------------------
1531 //---------------------------------------------------------------------------
1532 // These event classes can be derived from in Python and passed through the event
1533 // system without losing anything.  They do this by keeping a reference to
1534 // themselves and some special case handling in wxPyCallback::EventThunker.
1535
1536
1537 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1538     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1539     //Py_INCREF(m_self);        //      circular loops...
1540     m_cloned = FALSE;
1541 }
1542
1543 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1544     wxPyBeginBlockThreads();
1545     if (m_cloned)
1546         Py_DECREF(m_self);
1547     wxPyEndBlockThreads();
1548 }
1549
1550 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1551     wxPyBeginBlockThreads();
1552     if (m_cloned)
1553         Py_DECREF(m_self);
1554     m_self = self;
1555     if (clone) {
1556         Py_INCREF(m_self);
1557         m_cloned = TRUE;
1558     }
1559     wxPyEndBlockThreads();
1560 }
1561
1562 PyObject* wxPyEvtSelfRef::GetSelf() const {
1563     Py_INCREF(m_self);
1564     return m_self;
1565 }
1566
1567
1568 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1569 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1570
1571
1572 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1573     : wxEvent(winid, commandType) {
1574 }
1575
1576
1577 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1578     : wxEvent(evt)
1579 {
1580     SetSelf(evt.m_self, TRUE);
1581 }
1582
1583
1584 wxPyEvent::~wxPyEvent() {
1585 }
1586
1587
1588 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1589     : wxCommandEvent(commandType, id) {
1590 }
1591
1592
1593 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1594     : wxCommandEvent(evt)
1595 {
1596     SetSelf(evt.m_self, TRUE);
1597 }
1598
1599
1600 wxPyCommandEvent::~wxPyCommandEvent() {
1601 }
1602
1603
1604
1605
1606 //---------------------------------------------------------------------------
1607 //---------------------------------------------------------------------------
1608
1609
1610 wxPyTimer::wxPyTimer(PyObject* callback) {
1611     func = callback;
1612     Py_INCREF(func);
1613 }
1614
1615 wxPyTimer::~wxPyTimer() {
1616     wxPyBeginBlockThreads();
1617     Py_DECREF(func);
1618     wxPyEndBlockThreads();
1619 }
1620
1621 void wxPyTimer::Notify() {
1622     if (!func || func == Py_None) {
1623         wxTimer::Notify();
1624     }
1625     else {
1626         wxPyBeginBlockThreads();
1627
1628         PyObject*   result;
1629         PyObject*   args = Py_BuildValue("()");
1630
1631         result = PyEval_CallObject(func, args);
1632         Py_DECREF(args);
1633         if (result) {
1634             Py_DECREF(result);
1635             PyErr_Clear();
1636         } else {
1637             PyErr_Print();
1638         }
1639
1640         wxPyEndBlockThreads();
1641     }
1642 }
1643
1644
1645
1646 //---------------------------------------------------------------------------
1647 //---------------------------------------------------------------------------
1648 // Convert a wxList to a Python List
1649
1650 PyObject* wxPy_ConvertList(wxListBase* listbase, const char* className) {
1651     wxList*     list = (wxList*)listbase;  // this is probably bad...
1652     PyObject*   pyList;
1653     PyObject*   pyObj;
1654     wxObject*   wxObj;
1655     wxNode*     node = list->GetFirst();
1656
1657     wxPyBeginBlockThreads();
1658     pyList = PyList_New(0);
1659     while (node) {
1660         wxObj = node->GetData();
1661         pyObj = wxPyMake_wxObject(wxObj); //wxPyConstructObject(wxObj, className);
1662         PyList_Append(pyList, pyObj);
1663         node = node->GetNext();
1664     }
1665     wxPyEndBlockThreads();
1666     return pyList;
1667 }
1668
1669 //----------------------------------------------------------------------
1670
1671 long wxPyGetWinHandle(wxWindow* win) {
1672 #ifdef __WXMSW__
1673     return (long)win->GetHandle();
1674 #endif
1675
1676 #ifdef __WXAC__
1677     return (long)win->GetHandle();
1678 #endif
1679
1680     // Find and return the actual X-Window.
1681 #ifdef __WXGTK__
1682     if (win->m_wxwindow) {
1683 #ifdef __WXGTK20__
1684         return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window);
1685 #else
1686         GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1687         if (bwin) {
1688             return (long)bwin->xwindow;
1689         }
1690 #endif
1691     }
1692 #endif
1693     return 0;
1694 }
1695
1696 //----------------------------------------------------------------------
1697 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1698 // included in every file over and over again...
1699
1700 #if PYTHON_API_VERSION >= 1009
1701     static char* wxStringErrorMsg = "String or Unicode type required";
1702 #else
1703     static char* wxStringErrorMsg = "String type required";
1704 #endif
1705
1706
1707 wxString* wxString_in_helper(PyObject* source) {
1708     wxString* target;
1709 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1710     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1711         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1712         return NULL;
1713     }
1714 #if wxUSE_UNICODE
1715     if (PyUnicode_Check(source)) {
1716         target = new wxString();
1717         size_t len = PyUnicode_GET_SIZE(source);
1718         if (len) {
1719             PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len);
1720             target->UngetWriteBuf();
1721         }
1722     } else {
1723         // It is a string, get pointers to it and transform to unicode
1724         char* tmpPtr; int tmpSize;
1725         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1726         target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1727     }
1728 #else
1729     char* tmpPtr; int tmpSize;
1730     if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1731         PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1732         return NULL;
1733     }
1734     target = new wxString(tmpPtr, tmpSize);
1735 #endif // wxUSE_UNICODE
1736
1737 #else  // No Python unicode API (1.5.2)
1738     if (!PyString_Check(source)) {
1739         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1740         return NULL;
1741     }
1742     target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1743 #endif
1744     return target;
1745 }
1746
1747
1748 // Similar to above except doesn't use "new" and doesn't set an exception
1749 wxString Py2wxString(PyObject* source)
1750 {
1751     wxString target;
1752     bool     doDecRef = FALSE;
1753
1754 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1755     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1756         // Convert to String if not one already...  (TODO: Unicode too?)
1757         source = PyObject_Str(source);
1758         doDecRef = TRUE;
1759     }
1760
1761 #if wxUSE_UNICODE
1762     if (PyUnicode_Check(source)) {
1763         size_t len = PyUnicode_GET_SIZE(source);
1764         if (len) {
1765             PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len);
1766             target.UngetWriteBuf();
1767         }
1768     } else {
1769         // It is a string, get pointers to it and transform to unicode
1770         char* tmpPtr; int tmpSize;
1771         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1772         target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1773     }
1774 #else
1775     char* tmpPtr; int tmpSize;
1776     PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1777     target = wxString(tmpPtr, tmpSize);
1778 #endif // wxUSE_UNICODE
1779
1780 #else  // No Python unicode API (1.5.2)
1781     if (!PyString_Check(source)) {
1782         // Convert to String if not one already...
1783         source = PyObject_Str(source);
1784         doDecRef = TRUE;
1785     }
1786     target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1787 #endif
1788
1789     if (doDecRef)
1790         Py_DECREF(source);
1791     return target;
1792 }
1793
1794
1795 // Make either a Python String or Unicode object, depending on build mode
1796 PyObject* wx2PyString(const wxString& src)
1797 {
1798     PyObject* str;
1799 #if wxUSE_UNICODE
1800     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1801 #else
1802     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1803 #endif
1804     return str;
1805 }
1806
1807
1808 //----------------------------------------------------------------------
1809
1810
1811 byte* byte_LIST_helper(PyObject* source) {
1812     if (!PyList_Check(source)) {
1813         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1814         return NULL;
1815     }
1816     int count = PyList_Size(source);
1817     byte* temp = new byte[count];
1818     if (! temp) {
1819         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1820         return NULL;
1821     }
1822     for (int x=0; x<count; x++) {
1823         PyObject* o = PyList_GetItem(source, x);
1824         if (! PyInt_Check(o)) {
1825             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1826             return NULL;
1827         }
1828         temp[x] = (byte)PyInt_AsLong(o);
1829     }
1830     return temp;
1831 }
1832
1833
1834 int* int_LIST_helper(PyObject* source) {
1835     if (!PyList_Check(source)) {
1836         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1837         return NULL;
1838     }
1839     int count = PyList_Size(source);
1840     int* temp = new int[count];
1841     if (! temp) {
1842         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1843         return NULL;
1844     }
1845     for (int x=0; x<count; x++) {
1846         PyObject* o = PyList_GetItem(source, x);
1847         if (! PyInt_Check(o)) {
1848             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1849             return NULL;
1850         }
1851         temp[x] = PyInt_AsLong(o);
1852     }
1853     return temp;
1854 }
1855
1856
1857 long* long_LIST_helper(PyObject* source) {
1858     if (!PyList_Check(source)) {
1859         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1860         return NULL;
1861     }
1862     int count = PyList_Size(source);
1863     long* temp = new long[count];
1864     if (! temp) {
1865         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1866         return NULL;
1867     }
1868     for (int x=0; x<count; x++) {
1869         PyObject* o = PyList_GetItem(source, x);
1870         if (! PyInt_Check(o)) {
1871             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1872             return NULL;
1873         }
1874         temp[x] = PyInt_AsLong(o);
1875     }
1876     return temp;
1877 }
1878
1879
1880 char** string_LIST_helper(PyObject* source) {
1881     if (!PyList_Check(source)) {
1882         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1883         return NULL;
1884     }
1885     int count = PyList_Size(source);
1886     char** temp = new char*[count];
1887     if (! temp) {
1888         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1889         return NULL;
1890     }
1891     for (int x=0; x<count; x++) {
1892         PyObject* o = PyList_GetItem(source, x);
1893         if (! PyString_Check(o)) {
1894             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1895             return NULL;
1896         }
1897         temp[x] = PyString_AsString(o);
1898     }
1899     return temp;
1900 }
1901
1902 //--------------------------------
1903 // Part of patch from Tim Hochberg
1904 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1905     if (PyInt_Check(o1) && PyInt_Check(o2)) {
1906         point->x = PyInt_AS_LONG(o1);
1907         point->y = PyInt_AS_LONG(o2);
1908         return true;
1909     }
1910     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1911         point->x = (int)PyFloat_AS_DOUBLE(o1);
1912         point->y = (int)PyFloat_AS_DOUBLE(o2);
1913         return true;
1914     }
1915     if (PyInstance_Check(o1) || PyInstance_Check(o2)) {
1916         // Disallow instances because they can cause havok
1917         return false;
1918     }
1919     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1920         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1921         point->x = PyInt_AsLong(o1);
1922         point->y = PyInt_AsLong(o2);
1923         return true;
1924     }
1925     return false;
1926 }
1927
1928
1929 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1930     // Putting all of the declarations here allows
1931     // us to put the error handling all in one place.
1932     int x;
1933     wxPoint* temp;
1934     PyObject *o, *o1, *o2;
1935     bool isFast = PyList_Check(source) || PyTuple_Check(source);
1936
1937     if (!PySequence_Check(source)) {
1938         goto error0;
1939     }
1940
1941     // The length of the sequence is returned in count.
1942     *count = PySequence_Length(source);
1943     if (*count < 0) {
1944         goto error0;
1945     }
1946
1947     temp = new wxPoint[*count];
1948     if (!temp) {
1949         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1950         return NULL;
1951     }
1952     for (x=0; x<*count; x++) {
1953         // Get an item: try fast way first.
1954         if (isFast) {
1955             o = PySequence_Fast_GET_ITEM(source, x);
1956         }
1957         else {
1958             o = PySequence_GetItem(source, x);
1959             if (o == NULL) {
1960                 goto error1;
1961             }
1962         }
1963
1964         // Convert o to wxPoint.
1965         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1966             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1967             o1 = PySequence_Fast_GET_ITEM(o, 0);
1968             o2 = PySequence_Fast_GET_ITEM(o, 1);
1969             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1970                 goto error2;
1971             }
1972         }
1973         else if (PyInstance_Check(o)) {
1974             wxPoint* pt;
1975             if (SWIG_GetPtrObj(o, (void **)&pt, "_wxPoint_p")) {
1976                 goto error2;
1977             }
1978             temp[x] = *pt;
1979         }
1980         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1981             o1 = PySequence_GetItem(o, 0);
1982             o2 = PySequence_GetItem(o, 1);
1983             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1984                 goto error3;
1985             }
1986             Py_DECREF(o1);
1987             Py_DECREF(o2);
1988         }
1989         else {
1990             goto error2;
1991         }
1992         // Clean up.
1993         if (!isFast)
1994             Py_DECREF(o);
1995     }
1996     return temp;
1997
1998 error3:
1999     Py_DECREF(o1);
2000     Py_DECREF(o2);
2001 error2:
2002     if (!isFast)
2003         Py_DECREF(o);
2004 error1:
2005     delete [] temp;
2006 error0:
2007     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2008     return NULL;
2009 }
2010 // end of patch
2011 //------------------------------
2012
2013
2014 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2015     if (!PyList_Check(source)) {
2016         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2017         return NULL;
2018     }
2019     int count = PyList_Size(source);
2020     wxBitmap** temp = new wxBitmap*[count];
2021     if (! temp) {
2022         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2023         return NULL;
2024     }
2025     for (int x=0; x<count; x++) {
2026         PyObject* o = PyList_GetItem(source, x);
2027         if (PyInstance_Check(o)) {
2028             wxBitmap*    pt;
2029             if (SWIG_GetPtrObj(o, (void **) &pt,"_wxBitmap_p")) {
2030                 PyErr_SetString(PyExc_TypeError,"Expected _wxBitmap_p.");
2031                 return NULL;
2032             }
2033             temp[x] = pt;
2034         }
2035         else {
2036             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2037             return NULL;
2038         }
2039     }
2040     return temp;
2041 }
2042
2043
2044
2045 wxString* wxString_LIST_helper(PyObject* source) {
2046     if (!PyList_Check(source)) {
2047         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2048         return NULL;
2049     }
2050     int count = PyList_Size(source);
2051     wxString* temp = new wxString[count];
2052     if (! temp) {
2053         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2054         return NULL;
2055     }
2056     for (int x=0; x<count; x++) {
2057         PyObject* o = PyList_GetItem(source, x);
2058 #if PYTHON_API_VERSION >= 1009
2059         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2060             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2061             return NULL;
2062         }
2063 #else
2064         if (! PyString_Check(o)) {
2065             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2066             return NULL;
2067         }
2068 #endif
2069
2070         wxString* pStr = wxString_in_helper(o);
2071         temp[x] = *pStr;
2072         delete pStr;
2073     }
2074     return temp;
2075 }
2076
2077
2078 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2079     if (!PyList_Check(source)) {
2080         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2081         return NULL;
2082     }
2083     int count                = PyList_Size(source);
2084     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2085     if (! temp) {
2086         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2087         return NULL;
2088     }
2089     for (int x=0; x<count; x++) {
2090         PyObject* o = PyList_GetItem(source, x);
2091         if (PyInstance_Check(o)) {
2092             wxAcceleratorEntry* ae;
2093             if (SWIG_GetPtrObj(o, (void **) &ae,"_wxAcceleratorEntry_p")) {
2094                 PyErr_SetString(PyExc_TypeError,"Expected _wxAcceleratorEntry_p.");
2095                 return NULL;
2096             }
2097             temp[x] = *ae;
2098         }
2099         else if (PyTuple_Check(o)) {
2100             PyObject* o1 = PyTuple_GetItem(o, 0);
2101             PyObject* o2 = PyTuple_GetItem(o, 1);
2102             PyObject* o3 = PyTuple_GetItem(o, 2);
2103             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2104         }
2105         else {
2106             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2107             return NULL;
2108         }
2109     }
2110     return temp;
2111 }
2112
2113
2114 wxPen** wxPen_LIST_helper(PyObject* source) {
2115     if (!PyList_Check(source)) {
2116         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2117         return NULL;
2118     }
2119     int count = PyList_Size(source);
2120     wxPen** temp = new wxPen*[count];
2121     if (!temp) {
2122         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2123         return NULL;
2124     }
2125     for (int x=0; x<count; x++) {
2126         PyObject* o = PyList_GetItem(source, x);
2127         if (PyInstance_Check(o)) {
2128             wxPen*  pt;
2129             if (SWIG_GetPtrObj(o, (void **) &pt,"_wxPen_p")) {
2130                 delete temp;
2131                 PyErr_SetString(PyExc_TypeError,"Expected _wxPen_p.");
2132                 return NULL;
2133             }
2134             temp[x] = pt;
2135         }
2136         else {
2137             delete temp;
2138             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2139             return NULL;
2140         }
2141     }
2142     return temp;
2143 }
2144
2145
2146 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2147     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2148     PyObject *o1, *o2;
2149
2150     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2151         return FALSE;
2152
2153     if (isFast) {
2154         o1 = PySequence_Fast_GET_ITEM(source, 0);
2155         o2 = PySequence_Fast_GET_ITEM(source, 1);
2156     }
2157     else {
2158         o1 = PySequence_GetItem(source, 0);
2159         o2 = PySequence_GetItem(source, 1);
2160     }
2161
2162     *i1 = PyInt_AsLong(o1);
2163     *i2 = PyInt_AsLong(o2);
2164
2165     if (! isFast) {
2166         Py_DECREF(o1);
2167         Py_DECREF(o2);
2168     }
2169     return TRUE;
2170 }
2171
2172
2173 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2174     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2175     PyObject *o1, *o2, *o3, *o4;
2176
2177     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2178         return FALSE;
2179
2180     if (isFast) {
2181         o1 = PySequence_Fast_GET_ITEM(source, 0);
2182         o2 = PySequence_Fast_GET_ITEM(source, 1);
2183         o3 = PySequence_Fast_GET_ITEM(source, 2);
2184         o4 = PySequence_Fast_GET_ITEM(source, 3);
2185     }
2186     else {
2187         o1 = PySequence_GetItem(source, 0);
2188         o2 = PySequence_GetItem(source, 1);
2189         o3 = PySequence_GetItem(source, 2);
2190         o4 = PySequence_GetItem(source, 3);
2191     }
2192
2193     *i1 = PyInt_AsLong(o1);
2194     *i2 = PyInt_AsLong(o2);
2195     *i3 = PyInt_AsLong(o3);
2196     *i4 = PyInt_AsLong(o4);
2197
2198     if (! isFast) {
2199         Py_DECREF(o1);
2200         Py_DECREF(o2);
2201         Py_DECREF(o3);
2202         Py_DECREF(o4);
2203     }
2204     return TRUE;
2205 }
2206
2207
2208 //----------------------------------------------------------------------
2209
2210 bool wxSize_helper(PyObject* source, wxSize** obj) {
2211
2212     // If source is an object instance then it may already be the right type
2213     if (PyInstance_Check(source)) {
2214         wxSize* ptr;
2215         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxSize_p"))
2216             goto error;
2217         *obj = ptr;
2218         return TRUE;
2219     }
2220     // otherwise a 2-tuple of integers is expected
2221     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2222         PyObject* o1 = PySequence_GetItem(source, 0);
2223         PyObject* o2 = PySequence_GetItem(source, 1);
2224         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2225             Py_DECREF(o1);
2226             Py_DECREF(o2);
2227             goto error;
2228         }
2229         **obj = wxSize(PyInt_AsLong(o1), PyInt_AsLong(o2));
2230         Py_DECREF(o1);
2231         Py_DECREF(o2);
2232         return TRUE;
2233     }
2234
2235  error:
2236     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxSize object.");
2237     return FALSE;
2238 }
2239
2240
2241 bool wxPoint_helper(PyObject* source, wxPoint** obj) {
2242
2243     // If source is an object instance then it may already be the right type
2244     if (PyInstance_Check(source)) {
2245         wxPoint* ptr;
2246         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint_p"))
2247             goto error;
2248         *obj = ptr;
2249         return TRUE;
2250     }
2251     // otherwise a length-2 sequence of integers is expected
2252     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2253         PyObject* o1 = PySequence_GetItem(source, 0);
2254         PyObject* o2 = PySequence_GetItem(source, 1);
2255         // This should really check for integers, not numbers -- but that would break code.
2256         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2257             Py_DECREF(o1);
2258             Py_DECREF(o2);
2259             goto error;
2260         }
2261         **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
2262         Py_DECREF(o1);
2263         Py_DECREF(o2);
2264         return TRUE;
2265     }
2266  error:
2267     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of integers or a wxPoint object.");
2268     return FALSE;
2269 }
2270
2271
2272
2273 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2274
2275     // If source is an object instance then it may already be the right type
2276     if (PyInstance_Check(source)) {
2277         wxRealPoint* ptr;
2278         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRealPoint_p"))
2279             goto error;
2280         *obj = ptr;
2281         return TRUE;
2282     }
2283     // otherwise a 2-tuple of floats is expected
2284     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2285         PyObject* o1 = PySequence_GetItem(source, 0);
2286         PyObject* o2 = PySequence_GetItem(source, 1);
2287         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2288             Py_DECREF(o1);
2289             Py_DECREF(o2);
2290             goto error;
2291         }
2292         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2293         Py_DECREF(o1);
2294         Py_DECREF(o2);
2295         return TRUE;
2296     }
2297
2298  error:
2299     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2300     return FALSE;
2301 }
2302
2303
2304
2305
2306 bool wxRect_helper(PyObject* source, wxRect** obj) {
2307
2308     // If source is an object instance then it may already be the right type
2309     if (PyInstance_Check(source)) {
2310         wxRect* ptr;
2311         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxRect_p"))
2312             goto error;
2313         *obj = ptr;
2314         return TRUE;
2315     }
2316     // otherwise a 4-tuple of integers is expected
2317     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2318         PyObject* o1 = PySequence_GetItem(source, 0);
2319         PyObject* o2 = PySequence_GetItem(source, 1);
2320         PyObject* o3 = PySequence_GetItem(source, 2);
2321         PyObject* o4 = PySequence_GetItem(source, 3);
2322         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2323             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2324             Py_DECREF(o1);
2325             Py_DECREF(o2);
2326             Py_DECREF(o3);
2327             Py_DECREF(o4);
2328             goto error;
2329         }
2330         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2331                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2332         Py_DECREF(o1);
2333         Py_DECREF(o2);
2334         Py_DECREF(o3);
2335         Py_DECREF(o4);
2336         return TRUE;
2337     }
2338
2339  error:
2340     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2341     return FALSE;
2342 }
2343
2344
2345
2346 bool wxColour_helper(PyObject* source, wxColour** obj) {
2347
2348     // If source is an object instance then it may already be the right type
2349     if (PyInstance_Check(source)) {
2350         wxColour* ptr;
2351         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxColour_p"))
2352             goto error;
2353         *obj = ptr;
2354         return TRUE;
2355     }
2356     // otherwise check for a string
2357     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2358         wxString spec = Py2wxString(source);
2359         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2360             long red, green, blue;
2361             red = green = blue = 0;
2362             spec.Mid(1,2).ToLong(&red,   16);
2363             spec.Mid(3,2).ToLong(&green, 16);
2364             spec.Mid(5,2).ToLong(&blue,  16);
2365
2366             **obj = wxColour(red, green, blue);
2367             return TRUE;
2368         }
2369         else {                                       // it's a colour name
2370             **obj = wxColour(spec);
2371             return TRUE;
2372         }
2373     }
2374     // last chance: 3-tuple of integers is expected
2375     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2376         PyObject* o1 = PySequence_GetItem(source, 0);
2377         PyObject* o2 = PySequence_GetItem(source, 1);
2378         PyObject* o3 = PySequence_GetItem(source, 2);
2379         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2380             Py_DECREF(o1);
2381             Py_DECREF(o2);
2382             Py_DECREF(o3);
2383             goto error;
2384         }
2385         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2386         Py_DECREF(o1);
2387         Py_DECREF(o2);
2388         Py_DECREF(o3);
2389         return TRUE;
2390     }
2391
2392  error:
2393     PyErr_SetString(PyExc_TypeError,
2394                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2395     return FALSE;
2396 }
2397
2398
2399
2400 bool wxPoint2DDouble_helper(PyObject* source, wxPoint2DDouble** obj) {
2401     // If source is an object instance then it may already be the right type
2402     if (PyInstance_Check(source)) {
2403         wxPoint2DDouble* ptr;
2404         if (SWIG_GetPtrObj(source, (void **)&ptr, "_wxPoint2DDouble_p"))
2405             goto error;
2406         *obj = ptr;
2407         return TRUE;
2408     }
2409     // otherwise a length-2 sequence of floats is expected
2410     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2411         PyObject* o1 = PySequence_GetItem(source, 0);
2412         PyObject* o2 = PySequence_GetItem(source, 1);
2413         // This should really check for integers, not numbers -- but that would break code.
2414         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2415             Py_DECREF(o1);
2416             Py_DECREF(o2);
2417             goto error;
2418         }
2419         **obj = wxPoint2DDouble(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2420         Py_DECREF(o1);
2421         Py_DECREF(o2);
2422         return TRUE;
2423     }
2424  error:
2425     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2DDouble object.");
2426     return FALSE;
2427 }
2428
2429
2430
2431 //----------------------------------------------------------------------
2432
2433 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2434
2435     PyObject* list = PyList_New(0);
2436     for (size_t i=0; i < arr.GetCount(); i++) {
2437 #if wxUSE_UNICODE
2438         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2439 #else
2440         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2441 #endif
2442         PyList_Append(list, str);
2443         Py_DECREF(str);
2444     }
2445     return list;
2446 }
2447
2448
2449 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2450
2451     PyObject* list = PyList_New(0);
2452     for (size_t i=0; i < arr.GetCount(); i++) {
2453         PyObject* number = PyInt_FromLong(arr[i]);
2454         PyList_Append(list, number);
2455         Py_DECREF(number);
2456     }
2457     return list;
2458 }
2459
2460
2461 //----------------------------------------------------------------------
2462 //----------------------------------------------------------------------
2463
2464
2465
2466