wxPython/src/helpers.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        helpers.cpp
   3 // Purpose:     Helper functions/classes for the wxPython extension module
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     1-July-1997
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13
  14 #undef DEBUG
  15 #include <Python.h>
  16 #include "wx/wxPython/wxPython_int.h"
  17 #include "wx/wxPython/pyistream.h"
  18
  19 #ifdef __WXMSW__
  20 #include <wx/msw/private.h>
  21 #include <wx/msw/winundef.h>
  22 #include <wx/msw/msvcrt.h>
  23 #endif
  24
  25 #ifdef __WXGTK__
  26 #include <gtk/gtk.h>
  27 #include <gdk/gdkprivate.h>
  28 #include <wx/gtk/win_gtk.h>
  29 #endif
  30
  31 #ifdef __WXMAC__
  32 #include <wx/mac/private.h>
  33 #endif
  34
  35 #include <wx/clipbrd.h>
  36 #include <wx/mimetype.h>
  37 #include <wx/image.h>
  38
  39 //----------------------------------------------------------------------
  40
  41 #if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE
  42 #error Python must support Unicode to use wxWindows Unicode
  43 #endif
  44
  45 //----------------------------------------------------------------------
  46
  47 wxPyApp* wxPythonApp = NULL;  // Global instance of application object
  48 bool wxPyDoCleanup = False;
  49 bool wxPyDoingCleanup = False;
  50
  51
  52 #ifdef WXP_WITH_THREAD
  53 struct wxPyThreadState {
  54     unsigned long  tid;
  55     PyThreadState* tstate;
  56     int            blocked;
  57
  58     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  59         : tid(_tid), tstate(_tstate), blocked(1) {}
  60 };
  61
  62 #include <wx/dynarray.h>
  63 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  64 #include <wx/arrimpl.cpp>
  65 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  66
  67 wxPyThreadStateArray* wxPyTStates = NULL;
  68 wxMutex*              wxPyTMutex = NULL;
  69 #endif
  70
  71
  72 static PyObject* wxPython_dict = NULL;
  73 static PyObject* wxPyAssertionError = NULL;
  74
  75 PyObject* wxPyPtrTypeMap = NULL;
  76
  77
  78 #ifdef __WXMSW__             // If building for win32...
  79 //----------------------------------------------------------------------
  80 // This gets run when the DLL is loaded.  We just need to save a handle.
  81 //----------------------------------------------------------------------
  82
  83 BOOL WINAPI DllMain(
  84     HINSTANCE   hinstDLL,    // handle to DLL module
  85     DWORD       fdwReason,   // reason for calling function
  86     LPVOID      lpvReserved  // reserved
  87    )
  88 {
  89     // If wxPython is embedded in another wxWindows app then
  90     // the inatance has already been set.
  91     if (! wxGetInstance())
  92         wxSetInstance(hinstDLL);
  93     return True;
  94 }
  95 #endif
  96
  97 //----------------------------------------------------------------------
  98 // Classes for implementing the wxp main application shell.
  99 //----------------------------------------------------------------------
 100
 101 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
 102
 103
 104 wxPyApp::wxPyApp() {
 105     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 106     m_startupComplete = False;
 107 }
 108
 109
 110 wxPyApp::~wxPyApp() {
 111 }
 112
 113
 114 // This one isn't acutally called...  We fake it with _BootstrapApp
 115 bool wxPyApp::OnInit() {
 116     return False;
 117 }
 118
 119
 120 int  wxPyApp::MainLoop() {
 121     int retval = 0;
 122
 123     DeletePendingObjects();
 124     bool initialized = wxTopLevelWindows.GetCount() != 0;
 125     if (initialized) {
 126         if ( m_exitOnFrameDelete == Later ) {
 127             m_exitOnFrameDelete = Yes;
 128         }
 129
 130         retval = wxApp::MainLoop();
 131         OnExit();
 132     }
 133     return retval;
 134 }
 135
 136
 137 bool wxPyApp::OnInitGui() {
 138     bool rval=True;
 139     wxApp::OnInitGui();  // in this case always call the base class version
 140     wxPyBeginBlockThreads();
 141     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 142         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 143     wxPyEndBlockThreads();
 144     return rval;
 145 }
 146
 147
 148 int wxPyApp::OnExit() {
 149     int rval=0;
 150     wxPyBeginBlockThreads();
 151     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 152         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 153     wxPyEndBlockThreads();
 154     wxApp::OnExit();  // in this case always call the base class version
 155     return rval;
 156 }
 157
 158
 159 #ifdef __WXDEBUG__
 160 void wxPyApp::OnAssert(const wxChar *file,
 161                      int line,
 162                      const wxChar *cond,
 163                      const wxChar *msg) {
 164
 165     // if we're not fully initialized then just log the error
 166     if (! m_startupComplete) {
 167         wxString buf;
 168         buf.Alloc(4096);
 169         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 170                    file, line, cond);
 171         if (msg != NULL) {
 172             buf += wxT(": ");
 173             buf += msg;
 174         }
 175         wxLogDebug(buf);
 176         return;
 177     }
 178
 179     // If the OnAssert is overloaded in the Python class then call it...
 180     bool found;
 181     wxPyBeginBlockThreads();
 182     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 183         PyObject* fso = wx2PyString(file);
 184         PyObject* cso = wx2PyString(file);
 185         PyObject* mso;
 186         if (msg != NULL)
 187             mso = wx2PyString(file);
 188         else {
 189             mso = Py_None; Py_INCREF(Py_None);
 190         }
 191         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 192         Py_DECREF(fso);
 193         Py_DECREF(cso);
 194         Py_DECREF(mso);
 195     }
 196     wxPyEndBlockThreads();
 197
 198     // ...otherwise do our own thing with it
 199     if (! found) {
 200         // ignore it?
 201         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 202             return;
 203
 204         // turn it into a Python exception?
 205         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 206             wxString buf;
 207             buf.Alloc(4096);
 208             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 209             if (msg != NULL) {
 210                 buf += wxT(": ");
 211                 buf += msg;
 212             }
 213
 214             // set the exception
 215             wxPyBeginBlockThreads();
 216             PyObject* s = wx2PyString(buf);
 217             PyErr_SetObject(wxPyAssertionError, s);
 218             Py_DECREF(s);
 219             wxPyEndBlockThreads();
 220
 221             // Now when control returns to whatever API wrapper was called from
 222             // Python it should detect that an exception is set and will return
 223             // NULL, signalling the exception to Python.
 224         }
 225
 226         // Send it to the normal log destination, but only if
 227         // not _DIALOG because it will call this too
 228         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 229             wxString buf;
 230             buf.Alloc(4096);
 231             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 232                        file, line, cond);
 233             if (msg != NULL) {
 234                 buf += wxT(": ");
 235                 buf += msg;
 236             }
 237             wxLogDebug(buf);
 238         }
 239
 240         // do the normal wx assert dialog?
 241         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 242             wxApp::OnAssert(file, line, cond, msg);
 243     }
 244 }
 245 #endif
 246
 247
 248
 249 /*static*/
 250 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 251 #ifdef __WXMAC__
 252     return s_macSupportPCMenuShortcuts;
 253 #else
 254     return 0;
 255 #endif
 256 }
 257
 258 /*static*/
 259 long wxPyApp::GetMacAboutMenuItemId() {
 260 #ifdef __WXMAC__
 261     return s_macAboutMenuItemId;
 262 #else
 263     return 0;
 264 #endif
 265 }
 266
 267 /*static*/
 268 long wxPyApp::GetMacPreferencesMenuItemId() {
 269 #ifdef __WXMAC__
 270     return s_macPreferencesMenuItemId;
 271 #else
 272     return 0;
 273 #endif
 274 }
 275
 276 /*static*/
 277 long wxPyApp::GetMacExitMenuItemId() {
 278 #ifdef __WXMAC__
 279     return s_macExitMenuItemId;
 280 #else
 281     return 0;
 282 #endif
 283 }
 284
 285 /*static*/
 286 wxString wxPyApp::GetMacHelpMenuTitleName() {
 287 #ifdef __WXMAC__
 288     return s_macHelpMenuTitleName;
 289 #else
 290     return wxEmptyString;
 291 #endif
 292 }
 293
 294 /*static*/
 295 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 296 #ifdef __WXMAC__
 297     s_macSupportPCMenuShortcuts = val;
 298 #endif
 299 }
 300
 301 /*static*/
 302 void wxPyApp::SetMacAboutMenuItemId(long val) {
 303 #ifdef __WXMAC__
 304     s_macAboutMenuItemId = val;
 305 #endif
 306 }
 307
 308 /*static*/
 309 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 310 #ifdef __WXMAC__
 311     s_macPreferencesMenuItemId = val;
 312 #endif
 313 }
 314
 315 /*static*/
 316 void wxPyApp::SetMacExitMenuItemId(long val) {
 317 #ifdef __WXMAC__
 318     s_macExitMenuItemId = val;
 319 #endif
 320 }
 321
 322 /*static*/
 323 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 324 #ifdef __WXMAC__
 325     s_macHelpMenuTitleName = val;
 326 #endif
 327 }
 328
 329
 330 // This finishes the initialization of wxWindows and then calls the OnInit
 331 // that should be present in the derived (Python) class.
 332 void wxPyApp::_BootstrapApp()
 333 {
 334     bool        result;
 335     PyObject*   retval = NULL;
 336     PyObject*   pyint  = NULL;
 337
 338
 339     // Get any command-line args passed to this program from the sys module
 340     int    argc = 0;
 341     char** argv = NULL;
 342     wxPyBeginBlockThreads();
 343     PyObject* sysargv = PySys_GetObject("argv");
 344     if (sysargv != NULL) {
 345         argc = PyList_Size(sysargv);
 346         argv = new char*[argc+1];
 347         int x;
 348         for(x=0; x<argc; x++) {
 349             PyObject *pyArg = PyList_GetItem(sysargv, x);
 350             argv[x] = PyString_AsString(pyArg);
 351         }
 352         argv[argc] = NULL;
 353     }
 354     wxPyEndBlockThreads();
 355
 356     result = wxEntryStart(argc, argv);
 357     delete [] argv;
 358
 359     wxPyBeginBlockThreads();
 360     if (! result)  {
 361         PyErr_SetString(PyExc_SystemError, "wxEntryStart failed!");
 362         goto error;
 363     }
 364
 365     // The stock objects were all NULL when they were loaded into
 366     // SWIG generated proxies, so re-init those now...
 367     wxPy_ReinitStockObjects(3);
 368
 369     // It's now ok to generate exceptions for assertion errors.
 370     wxPythonApp->SetStartupComplete(True);
 371
 372     // Call the Python wxApp's OnInit function
 373     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 374
 375         PyObject* method = m_myInst.GetLastFound();
 376         PyObject* argTuple = PyTuple_New(0);
 377         retval = PyEval_CallObject(method, argTuple);
 378         Py_DECREF(argTuple);
 379         Py_DECREF(method);
 380         if (retval == NULL)
 381             goto error;
 382
 383         pyint = PyNumber_Int(retval);
 384         if (! pyint) {
 385             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 386             goto error;
 387         }
 388         result = PyInt_AS_LONG(pyint);
 389     }
 390     else {
 391         // Is it okay if there is no OnInit?  Probably so...
 392         result = True;
 393     }
 394
 395
 396     if (! result) {
 397         PyErr_SetString(PyExc_SystemExit, "OnInit returned False, exiting...");
 398     }
 399
 400  error:
 401     Py_XDECREF(retval);
 402     Py_XDECREF(pyint);
 403
 404     wxPyEndBlockThreads();
 405 };
 406
 407 //---------------------------------------------------------------------
 408 //----------------------------------------------------------------------
 409
 410
 411 #if 0
 412 static char* wxPyCopyCString(const wxChar* src)
 413 {
 414     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 415     size_t len = strlen(buff);
 416     char*  dest = new char[len+1];
 417     strcpy(dest, buff);
 418     return dest;
 419 }
 420
 421 #if wxUSE_UNICODE
 422 static char* wxPyCopyCString(const char* src)   // we need a char version too
 423 {
 424     size_t len = strlen(src);
 425     char*  dest = new char[len+1];
 426     strcpy(dest, src);
 427     return dest;
 428 }
 429 #endif
 430
 431 static wxChar* wxPyCopyWString(const char *src)
 432 {
 433     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 434     wxString str(src, *wxConvCurrent);
 435     return copystring(str);
 436 }
 437
 438 #if wxUSE_UNICODE
 439 static wxChar* wxPyCopyWString(const wxChar *src)
 440 {
 441     return copystring(src);
 442 }
 443 #endif
 444 #endif
 445
 446
 447 inline const char* dropwx(const char* name) {
 448     if (name[0] == 'w' && name[1] == 'x')
 449         return name+2;
 450     else
 451         return name;
 452 }
 453
 454 //----------------------------------------------------------------------
 455
 456 // This function is called when the wxc module is imported to do some initial
 457 // setup.  (Before there is a wxApp object.)  The rest happens in
 458 // wxPyApp::_BootstrapApp
 459 void __wxPyPreStart(PyObject* moduleDict)
 460 {
 461
 462 #ifdef __WXMSW__
 463 //    wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 464 #endif
 465
 466 #ifdef WXP_WITH_THREAD
 467     PyEval_InitThreads();
 468     wxPyTStates = new wxPyThreadStateArray;
 469     wxPyTMutex = new wxMutex;
 470
 471     // Save the current (main) thread state in our array
 472     PyThreadState* tstate = wxPyBeginAllowThreads();
 473     wxPyEndAllowThreads(tstate);
 474 #endif
 475
 476     // Ensure that the build options in the DLL (or whatever) match this build
 477     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 478
 479     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 480     wxPy_ReinitStockObjects(1);
 481 }
 482
 483
 484
 485 void __wxPyCleanup() {
 486     wxPyDoingCleanup = True;
 487     if (wxPyDoCleanup) {
 488         wxPyDoCleanup = False;
 489         wxEntryCleanup();
 490     }
 491 #ifdef WXP_WITH_THREAD
 492     delete wxPyTMutex;
 493     wxPyTMutex = NULL;
 494     wxPyTStates->Empty();
 495     delete wxPyTStates;
 496     wxPyTStates = NULL;
 497 #endif
 498 }
 499
 500
 501 // Save a reference to the dictionary of the wx.core module, and inject
 502 // a few more things into it.
 503 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 504 {
 505
 506     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 507         return NULL;
 508
 509     if (!PyDict_Check(wxPython_dict)) {
 510         PyErr_SetString(PyExc_TypeError, "_wxPySetDictionary must have dictionary object!");
 511         return NULL;
 512     }
 513
 514     if (! wxPyPtrTypeMap)
 515         wxPyPtrTypeMap = PyDict_New();
 516     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 517
 518     // Create an exception object to use for wxASSERTions
 519     wxPyAssertionError = PyErr_NewException("wx.core.PyAssertionError",
 520                                             PyExc_AssertionError, NULL);
 521     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 522
 523
 524 #ifdef __WXMOTIF__
 525 #define wxPlatform "__WXMOTIF__"
 526 #endif
 527 #ifdef __WXX11__
 528 #define wxPlatform "__WXX11__"
 529 #endif
 530 #ifdef __WXGTK__
 531 #define wxPlatform "__WXGTK__"
 532 #endif
 533 #if defined(__WIN32__) || defined(__WXMSW__)
 534 #define wxPlatform "__WXMSW__"
 535 #endif
 536 #ifdef __WXMAC__
 537 #define wxPlatform "__WXMAC__"
 538 #endif
 539
 540 #ifdef __WXDEBUG__
 541     int wxdebug = 1;
 542 #else
 543     int wxdebug = 0;
 544 #endif
 545
 546     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 547     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 548     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 549
 550     RETURN_NONE();
 551 }
 552
 553
 554 //---------------------------------------------------------------------------
 555
 556 // Python's PyInstance_Check does not return True for instances of new-style
 557 // classes.  This should get close enough for both new and old classes but I
 558 // should re-evaluate the need for doing instance checks...
 559 bool wxPyInstance_Check(PyObject* obj) {
 560     return PyObject_HasAttrString(obj, "__class__") != 0;
 561 }
 562
 563
 564 // This one checks if the object is an instance of a SWIG proxy class (it has
 565 // a .this attribute)
 566 bool wxPySwigInstance_Check(PyObject* obj) {
 567     return PyObject_HasAttrString(obj, "this") != 0;
 568 }
 569
 570 //---------------------------------------------------------------------------
 571
 572 // The stock objects are no longer created when the wxc module is imported,
 573 // but only after the app object has been created.  The
 574 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 575 // objects though various stages of evolution:
 576 //
 577 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 578 //           object will be created (otherwise it will just use None.)
 579 //
 580 //   pass 2: After the module has been imported and the python proxys have
 581 //           been created, then set the __class__ to be _wxPyUnbornObject so
 582 //           it will catch any access to the object and will raise an exception.
 583 //
 584 //   pass 3: Finally, from OnInit patch things up so the stock objects can
 585 //           be used.
 586
 587
 588 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 589 {
 590     wxPy_ReinitStockObjects(2);
 591     RETURN_NONE();
 592 }
 593
 594
 595 static void rsoPass2(const char* name)
 596 {
 597     static PyObject* unbornObjectClass = NULL;
 598     PyObject* obj;
 599
 600     if (unbornObjectClass == NULL) {
 601         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 602         Py_INCREF(unbornObjectClass);
 603     }
 604
 605     // Find the object instance
 606     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 607     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 608     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 609
 610     // Change its class
 611     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 612
 613 }
 614
 615 static void rsoPass3(const char* name, const char* classname, void* ptr)
 616 {
 617     PyObject* obj;
 618     PyObject* classobj;
 619     PyObject* ptrobj;
 620
 621     // Find the object instance
 622     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 623     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 624     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 625
 626     // Find the class object and put it back in the instance
 627     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 628     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 629     PyObject_SetAttrString(obj, "__class__",  classobj);
 630
 631     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 632     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 633     PyObject_SetAttrString(obj, "this", ptrobj);
 634     Py_DECREF(ptrobj);
 635 }
 636
 637
 638
 639 void wxPy_ReinitStockObjects(int pass)
 640 {
 641
 642 #define REINITOBJ(name, classname) \
 643     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 644     else if (pass == 2) { rsoPass2(#name); } \
 645     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 646
 647
 648 #define REINITOBJ2(name, classname) \
 649     if (pass == 1) { } \
 650     else if (pass == 2) { rsoPass2(#name); } \
 651     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 652
 653
 654     REINITOBJ(wxNORMAL_FONT, wxFont);
 655     REINITOBJ(wxSMALL_FONT, wxFont);
 656     REINITOBJ(wxITALIC_FONT, wxFont);
 657     REINITOBJ(wxSWISS_FONT, wxFont);
 658
 659     REINITOBJ(wxRED_PEN, wxPen);
 660     REINITOBJ(wxCYAN_PEN, wxPen);
 661     REINITOBJ(wxGREEN_PEN, wxPen);
 662     REINITOBJ(wxBLACK_PEN, wxPen);
 663     REINITOBJ(wxWHITE_PEN, wxPen);
 664     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 665     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 666     REINITOBJ(wxGREY_PEN, wxPen);
 667     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 668     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 669
 670     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 671     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 672     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 673     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 674     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 675     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 676     REINITOBJ(wxRED_BRUSH, wxBrush);
 677     REINITOBJ(wxGREY_BRUSH, wxBrush);
 678     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 679     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 680
 681     REINITOBJ(wxBLACK, wxColour);
 682     REINITOBJ(wxWHITE, wxColour);
 683     REINITOBJ(wxRED, wxColour);
 684     REINITOBJ(wxBLUE, wxColour);
 685     REINITOBJ(wxGREEN, wxColour);
 686     REINITOBJ(wxCYAN, wxColour);
 687     REINITOBJ(wxLIGHT_GREY, wxColour);
 688
 689     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 690     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 691     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 692
 693     REINITOBJ2(wxNullBitmap, wxBitmap);
 694     REINITOBJ2(wxNullIcon, wxIcon);
 695     REINITOBJ2(wxNullCursor, wxCursor);
 696     REINITOBJ2(wxNullPen, wxPen);
 697     REINITOBJ2(wxNullBrush, wxBrush);
 698     REINITOBJ2(wxNullPalette, wxPalette);
 699     REINITOBJ2(wxNullFont, wxFont);
 700     REINITOBJ2(wxNullColour, wxColour);
 701
 702     REINITOBJ(wxTheFontList, wxFontList);
 703     REINITOBJ(wxThePenList, wxPenList);
 704     REINITOBJ(wxTheBrushList, wxBrushList);
 705     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 706
 707
 708     REINITOBJ(wxTheClipboard, wxClipboard);
 709     REINITOBJ2(wxDefaultValidator, wxValidator);
 710     REINITOBJ2(wxNullImage, wxImage);
 711     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 712
 713 #undef REINITOBJ
 714 #undef REINITOBJ2
 715 }
 716
 717 //---------------------------------------------------------------------------
 718
 719 void wxPyClientData_dtor(wxPyClientData* self) {
 720     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 721                                         // may have already garbage collected the object...
 722         wxPyBeginBlockThreads();
 723         Py_DECREF(self->m_obj);
 724         self->m_obj = NULL;
 725         wxPyEndBlockThreads();
 726     }
 727 }
 728
 729 void wxPyUserData_dtor(wxPyUserData* self) {
 730     if (! wxPyDoingCleanup) {
 731         wxPyBeginBlockThreads();
 732         Py_DECREF(self->m_obj);
 733         self->m_obj = NULL;
 734         wxPyEndBlockThreads();
 735     }
 736 }
 737
 738
 739 // This is called when an OOR controled object is being destroyed.  Although
 740 // the C++ object is going away there is no way to force the Python object
 741 // (and all references to it) to die too.  This causes problems (crashes) in
 742 // wxPython when a python shadow object attempts to call a C++ method using
 743 // the now bogus pointer... So to try and prevent this we'll do a little black
 744 // magic and change the class of the python instance to a class that will
 745 // raise an exception for any attempt to call methods with it.  See
 746 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 747 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 748
 749     static PyObject* deadObjectClass = NULL;
 750
 751     wxPyBeginBlockThreads();
 752     if (deadObjectClass == NULL) {
 753         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 754         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 755         // will lead to a deadlock when it tries to aquire the GIL again.
 756         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 757         Py_INCREF(deadObjectClass);
 758     }
 759
 760
 761     // Only if there is more than one reference to the object
 762     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 763         // bool isInstance = wxPyInstance_Check(self->m_obj);
 764         // TODO same here
 765         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 766
 767         // Call __del__, if there is one.
 768         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 769         if (func) {
 770             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 771             Py_XDECREF(rv);
 772             Py_DECREF(func);
 773         }
 774         if (PyErr_Occurred())
 775             PyErr_Clear();      // just ignore it for now
 776
 777
 778         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 779         if (dict) {
 780             // Clear the instance's dictionary
 781             PyDict_Clear(dict);
 782
 783             // put the name of the old class into the instance, and then reset the
 784             // class to be the dead class.
 785             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 786             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 787             PyDict_SetItemString(dict, "_name", name);
 788             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 789             //Py_INCREF(deadObjectClass);
 790             Py_DECREF(klass);
 791             Py_DECREF(name);
 792         }
 793     }
 794
 795     // m_obj is DECREF'd in the base class dtor...
 796     wxPyEndBlockThreads();
 797 }
 798
 799
 800 //---------------------------------------------------------------------------
 801 // Stuff used by OOR to find the right wxPython class type to return and to
 802 // build it.
 803
 804
 805 // The pointer type map is used when the "pointer" type name generated by SWIG
 806 // is not the same as the shadow class name, for example wxPyTreeCtrl
 807 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 808 // so we'll just make it a Python dictionary in the wx module's namespace.
 809 // (See __wxSetDictionary)
 810 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 811     if (! wxPyPtrTypeMap)
 812         wxPyPtrTypeMap = PyDict_New();
 813     PyDict_SetItemString(wxPyPtrTypeMap,
 814                          (char*)commonName,
 815                          PyString_FromString((char*)ptrName));
 816 }
 817
 818
 819
 820
 821 PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
 822     PyObject* target = NULL;
 823     bool      isEvtHandler = False;
 824
 825     if (source) {
 826         // If it's derived from wxEvtHandler then there may
 827         // already be a pointer to a Python object that we can use
 828         // in the OOR data.
 829         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 830             isEvtHandler = True;
 831             wxEvtHandler* eh = (wxEvtHandler*)source;
 832             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 833             if (data) {
 834                 target = data->m_obj;
 835                 if (target)
 836                     Py_INCREF(target);
 837             }
 838         }
 839
 840         if (! target) {
 841             // Otherwise make it the old fashioned way by making a new shadow
 842             // object and putting this pointer in it.  Look up the class
 843             // heirarchy until we find a class name that is located in the
 844             // python module.
 845             const wxClassInfo* info   = source->GetClassInfo();
 846             wxString           name   = info->GetClassName();
 847             bool               exists = wxPyCheckSwigType(name);
 848             while (info && !exists) {
 849                 info = info->GetBaseClass1();
 850                 name = info->GetClassName();
 851                 exists = wxPyCheckSwigType(name);
 852             }
 853             if (info) {
 854                 target = wxPyConstructObject((void*)source, name, False);
 855                 if (target && isEvtHandler)
 856                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
 857             } else {
 858                 wxString msg(wxT("wxPython class not found for "));
 859                 msg += source->GetClassInfo()->GetClassName();
 860                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
 861                 target = NULL;
 862             }
 863         }
 864     } else {  // source was NULL so return None.
 865         Py_INCREF(Py_None); target = Py_None;
 866     }
 867     return target;
 868 }
 869
 870
 871 PyObject*  wxPyMake_wxSizer(wxSizer* source) {
 872     PyObject* target = NULL;
 873
 874     if (source && wxIsKindOf(source, wxSizer)) {
 875         // If it's derived from wxSizer then there may already be a pointer to
 876         // a Python object that we can use in the OOR data.
 877         wxSizer* sz = (wxSizer*)source;
 878         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
 879         if (data) {
 880             target = data->m_obj;
 881             if (target)
 882                 Py_INCREF(target);
 883         }
 884     }
 885     if (! target) {
 886         target = wxPyMake_wxObject(source, False);
 887         if (target != Py_None)
 888             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
 889     }
 890     return target;
 891 }
 892
 893
 894 //---------------------------------------------------------------------------
 895
 896
 897 #ifdef WXP_WITH_THREAD
 898 inline
 899 unsigned long wxPyGetCurrentThreadId() {
 900     return wxThread::GetCurrentId();
 901 }
 902
 903 static wxPyThreadState gs_shutdownTState;
 904
 905 static
 906 wxPyThreadState* wxPyGetThreadState() {
 907     if (wxPyTMutex == NULL) // Python is shutting down...
 908         return &gs_shutdownTState;
 909
 910     unsigned long ctid = wxPyGetCurrentThreadId();
 911     wxPyThreadState* tstate = NULL;
 912
 913     wxPyTMutex->Lock();
 914     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 915         wxPyThreadState& info = wxPyTStates->Item(i);
 916         if (info.tid == ctid) {
 917             tstate = &info;
 918             break;
 919         }
 920     }
 921     wxPyTMutex->Unlock();
 922     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
 923     return tstate;
 924 }
 925
 926
 927 static
 928 void wxPySaveThreadState(PyThreadState* tstate) {
 929     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
 930         gs_shutdownTState.tstate = tstate;
 931         return;
 932     }
 933     unsigned long ctid = wxPyGetCurrentThreadId();
 934     wxPyTMutex->Lock();
 935     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 936         wxPyThreadState& info = wxPyTStates->Item(i);
 937         if (info.tid == ctid) {
 938 #if 0
 939             if (info.tstate != tstate)
 940                 wxLogMessage("*** tstate mismatch!???");
 941 #endif
 942             // info.tstate = tstate;    *** DO NOT update existing ones???
 943             // Normally it will never change, but apparently COM callbacks
 944             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
 945             // tstate which will then be garbage the next time we try to use
 946             // it...
 947             wxPyTMutex->Unlock();
 948             return;
 949         }
 950     }
 951     // not found, so add it...
 952     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
 953     wxPyTMutex->Unlock();
 954 }
 955
 956 #endif
 957
 958
 959
 960 // Calls from Python to wxWindows code are wrapped in calls to these
 961 // functions:
 962
 963 PyThreadState* wxPyBeginAllowThreads() {
 964 #ifdef WXP_WITH_THREAD
 965     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
 966     wxPySaveThreadState(saved);
 967     wxPyGetThreadState()->blocked -= 1;
 968     return saved;
 969 #else
 970     return NULL;
 971 #endif
 972 }
 973
 974 void wxPyEndAllowThreads(PyThreadState* saved) {
 975 #ifdef WXP_WITH_THREAD
 976     wxPyGetThreadState()->blocked += 1;
 977     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
 978 #endif
 979 }
 980
 981
 982
 983 // Calls from wxWindows back to Python code, or even any PyObject
 984 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
 985
 986 void wxPyBeginBlockThreads() {
 987 #ifdef WXP_WITH_THREAD
 988     wxPyThreadState* tstate = wxPyGetThreadState();
 989     if (tstate->blocked++ == 0) {  // if nested calls then do nothing
 990         PyEval_RestoreThread(tstate->tstate);
 991     }
 992 #endif
 993 }
 994
 995
 996 void wxPyEndBlockThreads() {
 997 #ifdef WXP_WITH_THREAD
 998     wxPyThreadState* tstate = wxPyGetThreadState();
 999     tstate->blocked -= 1;
1000     if ( tstate->blocked == 0) {  // if nested calls then do nothing
1001         PyEval_SaveThread();
1002     }
1003 #endif
1004 }
1005
1006
1007 //---------------------------------------------------------------------------
1008 // wxPyInputStream and wxPyCBInputStream methods
1009
1010
1011 void wxPyInputStream::close() {
1012     /* do nothing for now */
1013 }
1014
1015 void wxPyInputStream::flush() {
1016     /* do nothing for now */
1017 }
1018
1019 bool wxPyInputStream::eof() {
1020     if (m_wxis)
1021         return m_wxis->Eof();
1022     else
1023         return True;
1024 }
1025
1026 wxPyInputStream::~wxPyInputStream() {
1027     /* do nothing */
1028 }
1029
1030
1031
1032
1033 PyObject* wxPyInputStream::read(int size) {
1034     PyObject* obj = NULL;
1035     wxMemoryBuffer buf;
1036     const int BUFSIZE = 1024;
1037
1038     // check if we have a real wxInputStream to work with
1039     if (!m_wxis) {
1040         wxPyBeginBlockThreads();
1041         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1042         wxPyEndBlockThreads();
1043         return NULL;
1044     }
1045
1046     if (size < 0) {
1047         // read while bytes are available on the stream
1048         while ( m_wxis->CanRead() ) {
1049             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1050             buf.UngetAppendBuf(m_wxis->LastRead());
1051         }
1052
1053     } else {  // Read only size number of characters
1054         m_wxis->Read(buf.GetWriteBuf(size), size);
1055         buf.UngetWriteBuf(m_wxis->LastRead());
1056     }
1057
1058     // error check
1059     wxPyBeginBlockThreads();
1060     wxStreamError err = m_wxis->GetLastError();
1061     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1062         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1063     }
1064     else {
1065         // We use only strings for the streams, not unicode
1066         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1067     }
1068     wxPyEndBlockThreads();
1069     return obj;
1070 }
1071
1072
1073 PyObject* wxPyInputStream::readline(int size) {
1074     PyObject* obj = NULL;
1075     wxMemoryBuffer buf;
1076     int i;
1077     char ch;
1078
1079     // check if we have a real wxInputStream to work with
1080     if (!m_wxis) {
1081         wxPyBeginBlockThreads();
1082         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1083         wxPyEndBlockThreads();
1084         return NULL;
1085     }
1086
1087     // read until \n or byte limit reached
1088     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1089         ch = m_wxis->GetC();
1090         buf.AppendByte(ch);
1091     }
1092
1093     // errorcheck
1094     wxPyBeginBlockThreads();
1095     wxStreamError err = m_wxis->GetLastError();
1096     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1097         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1098     }
1099     else {
1100         // We use only strings for the streams, not unicode
1101         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1102     }
1103     wxPyEndBlockThreads();
1104     return obj;
1105 }
1106
1107
1108 PyObject* wxPyInputStream::readlines(int sizehint) {
1109     PyObject* pylist;
1110
1111     // check if we have a real wxInputStream to work with
1112     if (!m_wxis) {
1113         wxPyBeginBlockThreads();
1114         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1115         wxPyEndBlockThreads();
1116         return NULL;
1117     }
1118
1119     // init list
1120     wxPyBeginBlockThreads();
1121     pylist = PyList_New(0);
1122     if (!pylist) {
1123         wxPyBeginBlockThreads();
1124         PyErr_NoMemory();
1125         wxPyEndBlockThreads();
1126         return NULL;
1127     }
1128
1129     // read sizehint bytes or until EOF
1130     int i;
1131     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1132         PyObject* s = this->readline();
1133         if (s == NULL) {
1134             wxPyBeginBlockThreads();
1135             Py_DECREF(pylist);
1136             wxPyEndBlockThreads();
1137             return NULL;
1138         }
1139         wxPyBeginBlockThreads();
1140         PyList_Append(pylist, s);
1141         i += PyString_Size(s);
1142         wxPyEndBlockThreads();
1143     }
1144
1145     // error check
1146     wxStreamError err = m_wxis->GetLastError();
1147     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1148         wxPyBeginBlockThreads();
1149         Py_DECREF(pylist);
1150         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1151         wxPyEndBlockThreads();
1152         return NULL;
1153     }
1154
1155     return pylist;
1156 }
1157
1158
1159 void wxPyInputStream::seek(int offset, int whence) {
1160     if (m_wxis)
1161         m_wxis->SeekI(offset, wxSeekMode(whence));
1162 }
1163
1164 int wxPyInputStream::tell(){
1165     if (m_wxis)
1166         return m_wxis->TellI();
1167     else return 0;
1168 }
1169
1170
1171
1172
1173 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1174     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1175 {}
1176
1177
1178 wxPyCBInputStream::~wxPyCBInputStream() {
1179     if (m_block) wxPyBeginBlockThreads();
1180     Py_XDECREF(m_read);
1181     Py_XDECREF(m_seek);
1182     Py_XDECREF(m_tell);
1183     if (m_block) wxPyEndBlockThreads();
1184 }
1185
1186
1187 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1188     if (block) wxPyBeginBlockThreads();
1189
1190     PyObject* read = getMethod(py, "read");
1191     PyObject* seek = getMethod(py, "seek");
1192     PyObject* tell = getMethod(py, "tell");
1193
1194     if (!read) {
1195         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1196         Py_XDECREF(read);
1197         Py_XDECREF(seek);
1198         Py_XDECREF(tell);
1199         if (block) wxPyEndBlockThreads();
1200         return NULL;
1201     }
1202
1203     if (block) wxPyEndBlockThreads();
1204     return new wxPyCBInputStream(read, seek, tell, block);
1205 }
1206
1207
1208 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1209     return wxPyCBInputStream::create(py, block);
1210 }
1211
1212 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1213     if (!PyObject_HasAttrString(py, name))
1214         return NULL;
1215     PyObject* o = PyObject_GetAttrString(py, name);
1216     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1217         Py_DECREF(o);
1218         return NULL;
1219     }
1220     return o;
1221 }
1222
1223
1224 size_t wxPyCBInputStream::GetSize() const {
1225     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1226     if (m_seek && m_tell) {
1227         off_t temp = self->OnSysTell();
1228         off_t ret = self->OnSysSeek(0, wxFromEnd);
1229         self->OnSysSeek(temp, wxFromStart);
1230         return ret;
1231     }
1232     else
1233         return 0;
1234 }
1235
1236
1237 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1238     if (bufsize == 0)
1239         return 0;
1240
1241     wxPyBeginBlockThreads();
1242     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1243     PyObject* result = PyEval_CallObject(m_read, arglist);
1244     Py_DECREF(arglist);
1245
1246     size_t o = 0;
1247     if ((result != NULL) && PyString_Check(result)) {
1248         o = PyString_Size(result);
1249         if (o == 0)
1250             m_lasterror = wxSTREAM_EOF;
1251         if (o > bufsize)
1252             o = bufsize;
1253         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1254         Py_DECREF(result);
1255
1256     }
1257     else
1258         m_lasterror = wxSTREAM_READ_ERROR;
1259     wxPyEndBlockThreads();
1260     return o;
1261 }
1262
1263 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1264     m_lasterror = wxSTREAM_WRITE_ERROR;
1265     return 0;
1266 }
1267
1268 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
1269     wxPyBeginBlockThreads();
1270 #ifdef _LARGE_FILES
1271     // off_t is a 64-bit value...
1272     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
1273 #else
1274     PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1275 #endif
1276     PyObject* result = PyEval_CallObject(m_seek, arglist);
1277     Py_DECREF(arglist);
1278     Py_XDECREF(result);
1279     wxPyEndBlockThreads();
1280     return OnSysTell();
1281 }
1282
1283
1284 off_t wxPyCBInputStream::OnSysTell() const {
1285     wxPyBeginBlockThreads();
1286     PyObject* arglist = Py_BuildValue("()");
1287     PyObject* result = PyEval_CallObject(m_tell, arglist);
1288     Py_DECREF(arglist);
1289     off_t o = 0;
1290     if (result != NULL) {
1291 #ifdef _LARGE_FILES
1292         if (PyLong_Check(result))
1293             o = PyLong_AsLongLong(result);
1294         else
1295 #endif
1296             o = PyInt_AsLong(result);
1297         Py_DECREF(result);
1298     };
1299     wxPyEndBlockThreads();
1300     return o;
1301 }
1302
1303 //----------------------------------------------------------------------
1304
1305 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1306
1307 wxPyCallback::wxPyCallback(PyObject* func) {
1308     m_func = func;
1309     Py_INCREF(m_func);
1310 }
1311
1312 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1313     m_func = other.m_func;
1314     Py_INCREF(m_func);
1315 }
1316
1317 wxPyCallback::~wxPyCallback() {
1318     wxPyBeginBlockThreads();
1319     Py_DECREF(m_func);
1320     wxPyEndBlockThreads();
1321 }
1322
1323
1324
1325 // This function is used for all events destined for Python event handlers.
1326 void wxPyCallback::EventThunker(wxEvent& event) {
1327     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1328     PyObject*       func = cb->m_func;
1329     PyObject*       result;
1330     PyObject*       arg;
1331     PyObject*       tuple;
1332     bool            checkSkip = False;
1333
1334     wxPyBeginBlockThreads();
1335     wxString className = event.GetClassInfo()->GetClassName();
1336
1337     // If the event is one of these types then pass the original
1338     // event object instead of the one passed to us.
1339     if ( className == wxT("wxPyEvent") ) {
1340         arg =       ((wxPyEvent*)&event)->GetSelf();
1341         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1342     }
1343     else if ( className == wxT("wxPyCommandEvent") ) {
1344         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1345         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1346     }
1347     else {
1348         arg = wxPyConstructObject((void*)&event, className);
1349     }
1350
1351     if (!arg) {
1352         PyErr_Print();
1353     } else {
1354         // Call the event handler, passing the event object
1355         tuple = PyTuple_New(1);
1356         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1357         result = PyEval_CallObject(func, tuple);
1358         if ( result ) {
1359             Py_DECREF(result);   // result is ignored, but we still need to decref it
1360             PyErr_Clear();       // Just in case...
1361         } else {
1362             PyErr_Print();
1363         }
1364
1365         if ( checkSkip ) {
1366             // if the event object was one of our special types and
1367             // it had been cloned, then we need to extract the Skipped
1368             // value from the original and set it in the clone.
1369             result = PyObject_CallMethod(arg, "GetSkipped", "");
1370             if ( result ) {
1371                 event.Skip(PyInt_AsLong(result));
1372                 Py_DECREF(result);
1373             } else {
1374                 PyErr_Print();
1375             }
1376         }
1377         Py_DECREF(tuple);
1378     }
1379     wxPyEndBlockThreads();
1380 }
1381
1382
1383 //----------------------------------------------------------------------
1384
1385 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1386       m_lastFound = NULL;
1387       m_self = other.m_self;
1388       m_class = other.m_class;
1389       if (m_self) {
1390           Py_INCREF(m_self);
1391           Py_INCREF(m_class);
1392       }
1393 }
1394
1395
1396 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1397     m_self = self;
1398     m_class = klass;
1399     m_incRef = incref;
1400     if (incref) {
1401         Py_INCREF(m_self);
1402         Py_INCREF(m_class);
1403     }
1404 }
1405
1406
1407 #if PYTHON_API_VERSION >= 1011
1408
1409 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1410 // in which the method was defined.  Starting with 2.2 it returns
1411 // "class that asked for the method" which seems totally bogus to me
1412 // but apprently it fixes some obscure problem waiting to happen in
1413 // Python.  Since the API was not documented Guido and the gang felt
1414 // safe in changing it.  Needless to say that totally screwed up the
1415 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1416 // code to find the class where the method is actually defined...
1417
1418 static
1419 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1420 {
1421     int i, n;
1422
1423     if (PyType_Check(klass)) {      // new style classes
1424         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1425         PyTypeObject* type = (PyTypeObject*)klass;
1426         PyObject *mro, *res, *base, *dict;
1427         /* Look in tp_dict of types in MRO */
1428         mro = type->tp_mro;
1429         assert(PyTuple_Check(mro));
1430         n = PyTuple_GET_SIZE(mro);
1431         for (i = 0; i < n; i++) {
1432             base = PyTuple_GET_ITEM(mro, i);
1433             if (PyClass_Check(base))
1434                 dict = ((PyClassObject *)base)->cl_dict;
1435             else {
1436                 assert(PyType_Check(base));
1437                 dict = ((PyTypeObject *)base)->tp_dict;
1438             }
1439             assert(dict && PyDict_Check(dict));
1440             res = PyDict_GetItem(dict, name);
1441             if (res != NULL)
1442                 return base;
1443         }
1444         return NULL;
1445     }
1446
1447     else if (PyClass_Check(klass)) { // old style classes
1448         // This code is borrowed/adapted from class_lookup in classobject.c
1449         PyClassObject* cp = (PyClassObject*)klass;
1450         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1451         if (value != NULL) {
1452             return (PyObject*)cp;
1453         }
1454         n = PyTuple_Size(cp->cl_bases);
1455         for (i = 0; i < n; i++) {
1456             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1457             PyObject *v = PyFindClassWithAttr(base, name);
1458             if (v != NULL)
1459                 return v;
1460         }
1461         return NULL;
1462     }
1463     return NULL;
1464 }
1465 #endif
1466
1467
1468 static
1469 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1470 {
1471     PyObject* mgc = PyMethod_GET_CLASS(method);
1472
1473 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1474     return mgc;
1475 #else                             // 2.2 and after, the hard way...
1476
1477     PyObject* nameo = PyString_FromString(name);
1478     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1479     Py_DECREF(nameo);
1480     return klass;
1481 #endif
1482 }
1483
1484
1485
1486 bool wxPyCallbackHelper::findCallback(const char* name) const {
1487     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1488     self->m_lastFound = NULL;
1489
1490     // If the object (m_self) has an attibute of the given name...
1491     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1492         PyObject *method, *klass;
1493         method = PyObject_GetAttrString(m_self, (char*)name);
1494
1495         // ...and if that attribute is a method, and if that method's class is
1496         // not from a base class...
1497         if (PyMethod_Check(method) &&
1498             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1499             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1500
1501             // ...then we'll save a pointer to the method so callCallback can call it.
1502             self->m_lastFound = method;
1503         }
1504         else {
1505             Py_DECREF(method);
1506         }
1507     }
1508     return m_lastFound != NULL;
1509 }
1510
1511
1512 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1513     PyObject*   result;
1514     int         retval = False;
1515
1516     result = callCallbackObj(argTuple);
1517     if (result) {                       // Assumes an integer return type...
1518         retval = PyInt_AsLong(result);
1519         Py_DECREF(result);
1520         PyErr_Clear();                  // forget about it if it's not...
1521     }
1522     return retval;
1523 }
1524
1525 // Invoke the Python callable object, returning the raw PyObject return
1526 // value.  Caller should DECREF the return value and also manage the GIL.
1527 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1528     PyObject* result;
1529
1530     // Save a copy of the pointer in case the callback generates another
1531     // callback.  In that case m_lastFound will have a different value when
1532     // it gets back here...
1533     PyObject* method = m_lastFound;
1534
1535     result = PyEval_CallObject(method, argTuple);
1536     Py_DECREF(argTuple);
1537     Py_DECREF(method);
1538     if (!result) {
1539         PyErr_Print();
1540     }
1541     return result;
1542 }
1543
1544
1545 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1546     cbh.setSelf(self, klass, incref);
1547 }
1548
1549 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1550     return cbh.findCallback(name);
1551 }
1552
1553 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1554     return cbh.callCallback(argTuple);
1555 }
1556
1557 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1558     return cbh.callCallbackObj(argTuple);
1559 }
1560
1561
1562 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1563     if (cbh->m_incRef) {
1564         wxPyBeginBlockThreads();
1565         Py_XDECREF(cbh->m_self);
1566         Py_XDECREF(cbh->m_class);
1567         wxPyEndBlockThreads();
1568     }
1569 }
1570
1571 //---------------------------------------------------------------------------
1572 //---------------------------------------------------------------------------
1573 // These event classes can be derived from in Python and passed through the event
1574 // system without losing anything.  They do this by keeping a reference to
1575 // themselves and some special case handling in wxPyCallback::EventThunker.
1576
1577
1578 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1579     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1580     //Py_INCREF(m_self);        //      circular loops...
1581     m_cloned = False;
1582 }
1583
1584 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1585     wxPyBeginBlockThreads();
1586     if (m_cloned)
1587         Py_DECREF(m_self);
1588     wxPyEndBlockThreads();
1589 }
1590
1591 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1592     wxPyBeginBlockThreads();
1593     if (m_cloned)
1594         Py_DECREF(m_self);
1595     m_self = self;
1596     if (clone) {
1597         Py_INCREF(m_self);
1598         m_cloned = True;
1599     }
1600     wxPyEndBlockThreads();
1601 }
1602
1603 PyObject* wxPyEvtSelfRef::GetSelf() const {
1604     Py_INCREF(m_self);
1605     return m_self;
1606 }
1607
1608
1609 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1610 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1611
1612
1613 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1614     : wxEvent(winid, commandType) {
1615 }
1616
1617
1618 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1619     : wxEvent(evt)
1620 {
1621     SetSelf(evt.m_self, True);
1622 }
1623
1624
1625 wxPyEvent::~wxPyEvent() {
1626 }
1627
1628
1629 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1630     : wxCommandEvent(commandType, id) {
1631 }
1632
1633
1634 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1635     : wxCommandEvent(evt)
1636 {
1637     SetSelf(evt.m_self, True);
1638 }
1639
1640
1641 wxPyCommandEvent::~wxPyCommandEvent() {
1642 }
1643
1644
1645
1646
1647
1648 //---------------------------------------------------------------------------
1649 //---------------------------------------------------------------------------
1650 // Convert a wxList to a Python List, only works for lists of wxObjects
1651
1652 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1653     wxList*     list = (wxList*)listbase;  // this is probably bad...
1654     PyObject*   pyList;
1655     PyObject*   pyObj;
1656     wxObject*   wxObj;
1657     wxNode*     node = list->GetFirst();
1658
1659     wxPyBeginBlockThreads();
1660     pyList = PyList_New(0);
1661     while (node) {
1662         wxObj = node->GetData();
1663         pyObj = wxPyMake_wxObject(wxObj);
1664         PyList_Append(pyList, pyObj);
1665         node = node->GetNext();
1666     }
1667     wxPyEndBlockThreads();
1668     return pyList;
1669 }
1670
1671 //----------------------------------------------------------------------
1672
1673 long wxPyGetWinHandle(wxWindow* win) {
1674
1675 #ifdef __WXMSW__
1676     return (long)win->GetHandle();
1677 #endif
1678
1679     // Find and return the actual X-Window.
1680 #ifdef __WXGTK__
1681     if (win->m_wxwindow) {
1682 #ifdef __WXGTK20__
1683         return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window);
1684 #else
1685         GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1686         if (bwin) {
1687             return (long)bwin->xwindow;
1688         }
1689 #endif
1690     }
1691 #endif
1692
1693 #ifdef __WXMAC__
1694     return (long)MAC_WXHWND(win->MacGetRootWindow());
1695 #endif
1696
1697     return 0;
1698 }
1699
1700 //----------------------------------------------------------------------
1701 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1702 // included in every file over and over again...
1703
1704 #if PYTHON_API_VERSION >= 1009
1705     static char* wxStringErrorMsg = "String or Unicode type required";
1706 #else
1707     static char* wxStringErrorMsg = "String type required";
1708 #endif
1709
1710
1711 wxString* wxString_in_helper(PyObject* source) {
1712     wxString* target;
1713 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1714     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1715         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1716         return NULL;
1717     }
1718 #if wxUSE_UNICODE
1719     if (PyUnicode_Check(source)) {
1720         target = new wxString();
1721         size_t len = PyUnicode_GET_SIZE(source);
1722         if (len) {
1723             PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len);
1724             target->UngetWriteBuf();
1725         }
1726     } else {
1727         // It is a string, get pointers to it and transform to unicode
1728         char* tmpPtr; int tmpSize;
1729         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1730         target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1731     }
1732 #else
1733     char* tmpPtr; int tmpSize;
1734     if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1735         PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1736         return NULL;
1737     }
1738     target = new wxString(tmpPtr, tmpSize);
1739 #endif // wxUSE_UNICODE
1740
1741 #else  // No Python unicode API (1.5.2)
1742     if (!PyString_Check(source)) {
1743         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1744         return NULL;
1745     }
1746     target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1747 #endif
1748     return target;
1749 }
1750
1751
1752 // Similar to above except doesn't use "new" and doesn't set an exception
1753 wxString Py2wxString(PyObject* source)
1754 {
1755     wxString target;
1756     bool     doDecRef = False;
1757
1758 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1759     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1760         // Convert to String if not one already...  (TODO: Unicode too?)
1761         source = PyObject_Str(source);
1762         doDecRef = True;
1763     }
1764
1765 #if wxUSE_UNICODE
1766     if (PyUnicode_Check(source)) {
1767         size_t len = PyUnicode_GET_SIZE(source);
1768         if (len) {
1769             PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len);
1770             target.UngetWriteBuf();
1771         }
1772     } else {
1773         // It is a string, get pointers to it and transform to unicode
1774         char* tmpPtr; int tmpSize;
1775         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1776         target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1777     }
1778 #else
1779     char* tmpPtr; int tmpSize;
1780     PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1781     target = wxString(tmpPtr, tmpSize);
1782 #endif // wxUSE_UNICODE
1783
1784 #else  // No Python unicode API (1.5.2)
1785     if (!PyString_Check(source)) {
1786         // Convert to String if not one already...
1787         source = PyObject_Str(source);
1788         doDecRef = True;
1789     }
1790     target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1791 #endif
1792
1793     if (doDecRef)
1794         Py_DECREF(source);
1795     return target;
1796 }
1797
1798
1799 // Make either a Python String or Unicode object, depending on build mode
1800 PyObject* wx2PyString(const wxString& src)
1801 {
1802     PyObject* str;
1803 #if wxUSE_UNICODE
1804     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1805 #else
1806     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1807 #endif
1808     return str;
1809 }
1810
1811
1812 //----------------------------------------------------------------------
1813
1814
1815 byte* byte_LIST_helper(PyObject* source) {
1816     if (!PyList_Check(source)) {
1817         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1818         return NULL;
1819     }
1820     int count = PyList_Size(source);
1821     byte* temp = new byte[count];
1822     if (! temp) {
1823         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1824         return NULL;
1825     }
1826     for (int x=0; x<count; x++) {
1827         PyObject* o = PyList_GetItem(source, x);
1828         if (! PyInt_Check(o)) {
1829             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1830             return NULL;
1831         }
1832         temp[x] = (byte)PyInt_AsLong(o);
1833     }
1834     return temp;
1835 }
1836
1837
1838 int* int_LIST_helper(PyObject* source) {
1839     if (!PyList_Check(source)) {
1840         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1841         return NULL;
1842     }
1843     int count = PyList_Size(source);
1844     int* temp = new int[count];
1845     if (! temp) {
1846         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1847         return NULL;
1848     }
1849     for (int x=0; x<count; x++) {
1850         PyObject* o = PyList_GetItem(source, x);
1851         if (! PyInt_Check(o)) {
1852             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1853             return NULL;
1854         }
1855         temp[x] = PyInt_AsLong(o);
1856     }
1857     return temp;
1858 }
1859
1860
1861 long* long_LIST_helper(PyObject* source) {
1862     if (!PyList_Check(source)) {
1863         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1864         return NULL;
1865     }
1866     int count = PyList_Size(source);
1867     long* temp = new long[count];
1868     if (! temp) {
1869         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1870         return NULL;
1871     }
1872     for (int x=0; x<count; x++) {
1873         PyObject* o = PyList_GetItem(source, x);
1874         if (! PyInt_Check(o)) {
1875             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1876             return NULL;
1877         }
1878         temp[x] = PyInt_AsLong(o);
1879     }
1880     return temp;
1881 }
1882
1883
1884 char** string_LIST_helper(PyObject* source) {
1885     if (!PyList_Check(source)) {
1886         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1887         return NULL;
1888     }
1889     int count = PyList_Size(source);
1890     char** temp = new char*[count];
1891     if (! temp) {
1892         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1893         return NULL;
1894     }
1895     for (int x=0; x<count; x++) {
1896         PyObject* o = PyList_GetItem(source, x);
1897         if (! PyString_Check(o)) {
1898             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1899             return NULL;
1900         }
1901         temp[x] = PyString_AsString(o);
1902     }
1903     return temp;
1904 }
1905
1906 //--------------------------------
1907 // Part of patch from Tim Hochberg
1908 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1909     if (PyInt_Check(o1) && PyInt_Check(o2)) {
1910         point->x = PyInt_AS_LONG(o1);
1911         point->y = PyInt_AS_LONG(o2);
1912         return True;
1913     }
1914     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1915         point->x = (int)PyFloat_AS_DOUBLE(o1);
1916         point->y = (int)PyFloat_AS_DOUBLE(o2);
1917         return True;
1918     }
1919     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
1920         // Disallow instances because they can cause havok
1921         return False;
1922     }
1923     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1924         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1925         point->x = PyInt_AsLong(o1);
1926         point->y = PyInt_AsLong(o2);
1927         return True;
1928     }
1929     return False;
1930 }
1931
1932
1933 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1934     // Putting all of the declarations here allows
1935     // us to put the error handling all in one place.
1936     int x;
1937     wxPoint* temp;
1938     PyObject *o, *o1, *o2;
1939     bool isFast = PyList_Check(source) || PyTuple_Check(source);
1940
1941     if (!PySequence_Check(source)) {
1942         goto error0;
1943     }
1944
1945     // The length of the sequence is returned in count.
1946     *count = PySequence_Length(source);
1947     if (*count < 0) {
1948         goto error0;
1949     }
1950
1951     temp = new wxPoint[*count];
1952     if (!temp) {
1953         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1954         return NULL;
1955     }
1956     for (x=0; x<*count; x++) {
1957         // Get an item: try fast way first.
1958         if (isFast) {
1959             o = PySequence_Fast_GET_ITEM(source, x);
1960         }
1961         else {
1962             o = PySequence_GetItem(source, x);
1963             if (o == NULL) {
1964                 goto error1;
1965             }
1966         }
1967
1968         // Convert o to wxPoint.
1969         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1970             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1971             o1 = PySequence_Fast_GET_ITEM(o, 0);
1972             o2 = PySequence_Fast_GET_ITEM(o, 1);
1973             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1974                 goto error2;
1975             }
1976         }
1977         else if (wxPySwigInstance_Check(o)) {
1978             wxPoint* pt;
1979             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
1980                 goto error2;
1981             }
1982             temp[x] = *pt;
1983         }
1984         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1985             o1 = PySequence_GetItem(o, 0);
1986             o2 = PySequence_GetItem(o, 1);
1987             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1988                 goto error3;
1989             }
1990             Py_DECREF(o1);
1991             Py_DECREF(o2);
1992         }
1993         else {
1994             goto error2;
1995         }
1996         // Clean up.
1997         if (!isFast)
1998             Py_DECREF(o);
1999     }
2000     return temp;
2001
2002 error3:
2003     Py_DECREF(o1);
2004     Py_DECREF(o2);
2005 error2:
2006     if (!isFast)
2007         Py_DECREF(o);
2008 error1:
2009     delete [] temp;
2010 error0:
2011     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2012     return NULL;
2013 }
2014 // end of patch
2015 //------------------------------
2016
2017
2018 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2019     if (!PyList_Check(source)) {
2020         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2021         return NULL;
2022     }
2023     int count = PyList_Size(source);
2024     wxBitmap** temp = new wxBitmap*[count];
2025     if (! temp) {
2026         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2027         return NULL;
2028     }
2029     for (int x=0; x<count; x++) {
2030         PyObject* o = PyList_GetItem(source, x);
2031         if (wxPySwigInstance_Check(o)) {
2032             wxBitmap*    pt;
2033             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2034                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2035                 return NULL;
2036             }
2037             temp[x] = pt;
2038         }
2039         else {
2040             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2041             return NULL;
2042         }
2043     }
2044     return temp;
2045 }
2046
2047
2048
2049 wxString* wxString_LIST_helper(PyObject* source) {
2050     if (!PyList_Check(source)) {
2051         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2052         return NULL;
2053     }
2054     int count = PyList_Size(source);
2055     wxString* temp = new wxString[count];
2056     if (! temp) {
2057         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2058         return NULL;
2059     }
2060     for (int x=0; x<count; x++) {
2061         PyObject* o = PyList_GetItem(source, x);
2062 #if PYTHON_API_VERSION >= 1009
2063         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2064             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2065             return NULL;
2066         }
2067 #else
2068         if (! PyString_Check(o)) {
2069             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2070             return NULL;
2071         }
2072 #endif
2073
2074         wxString* pStr = wxString_in_helper(o);
2075         temp[x] = *pStr;
2076         delete pStr;
2077     }
2078     return temp;
2079 }
2080
2081
2082 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2083     if (!PyList_Check(source)) {
2084         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2085         return NULL;
2086     }
2087     int count                = PyList_Size(source);
2088     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2089     if (! temp) {
2090         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2091         return NULL;
2092     }
2093     for (int x=0; x<count; x++) {
2094         PyObject* o = PyList_GetItem(source, x);
2095         if (wxPySwigInstance_Check(o)) {
2096             wxAcceleratorEntry* ae;
2097             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2098                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2099                 return NULL;
2100             }
2101             temp[x] = *ae;
2102         }
2103         else if (PyTuple_Check(o)) {
2104             PyObject* o1 = PyTuple_GetItem(o, 0);
2105             PyObject* o2 = PyTuple_GetItem(o, 1);
2106             PyObject* o3 = PyTuple_GetItem(o, 2);
2107             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2108         }
2109         else {
2110             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2111             return NULL;
2112         }
2113     }
2114     return temp;
2115 }
2116
2117
2118 wxPen** wxPen_LIST_helper(PyObject* source) {
2119     if (!PyList_Check(source)) {
2120         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2121         return NULL;
2122     }
2123     int count = PyList_Size(source);
2124     wxPen** temp = new wxPen*[count];
2125     if (!temp) {
2126         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2127         return NULL;
2128     }
2129     for (int x=0; x<count; x++) {
2130         PyObject* o = PyList_GetItem(source, x);
2131         if (wxPySwigInstance_Check(o)) {
2132             wxPen*  pt;
2133             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2134                 delete temp;
2135                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2136                 return NULL;
2137             }
2138             temp[x] = pt;
2139         }
2140         else {
2141             delete temp;
2142             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2143             return NULL;
2144         }
2145     }
2146     return temp;
2147 }
2148
2149
2150 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2151     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2152     PyObject *o1, *o2;
2153
2154     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2155         return False;
2156
2157     if (isFast) {
2158         o1 = PySequence_Fast_GET_ITEM(source, 0);
2159         o2 = PySequence_Fast_GET_ITEM(source, 1);
2160     }
2161     else {
2162         o1 = PySequence_GetItem(source, 0);
2163         o2 = PySequence_GetItem(source, 1);
2164     }
2165
2166     *i1 = PyInt_AsLong(o1);
2167     *i2 = PyInt_AsLong(o2);
2168
2169     if (! isFast) {
2170         Py_DECREF(o1);
2171         Py_DECREF(o2);
2172     }
2173     return True;
2174 }
2175
2176
2177 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2178     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2179     PyObject *o1, *o2, *o3, *o4;
2180
2181     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2182         return False;
2183
2184     if (isFast) {
2185         o1 = PySequence_Fast_GET_ITEM(source, 0);
2186         o2 = PySequence_Fast_GET_ITEM(source, 1);
2187         o3 = PySequence_Fast_GET_ITEM(source, 2);
2188         o4 = PySequence_Fast_GET_ITEM(source, 3);
2189     }
2190     else {
2191         o1 = PySequence_GetItem(source, 0);
2192         o2 = PySequence_GetItem(source, 1);
2193         o3 = PySequence_GetItem(source, 2);
2194         o4 = PySequence_GetItem(source, 3);
2195     }
2196
2197     *i1 = PyInt_AsLong(o1);
2198     *i2 = PyInt_AsLong(o2);
2199     *i3 = PyInt_AsLong(o3);
2200     *i4 = PyInt_AsLong(o4);
2201
2202     if (! isFast) {
2203         Py_DECREF(o1);
2204         Py_DECREF(o2);
2205         Py_DECREF(o3);
2206         Py_DECREF(o4);
2207     }
2208     return True;
2209 }
2210
2211
2212 //----------------------------------------------------------------------
2213
2214 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2215 {
2216     void* ptr;
2217
2218     if (wxPySwigInstance_Check(source) &&
2219         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2220         return True;
2221
2222     PyErr_Clear();
2223     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2224         return True;
2225
2226     return False;
2227 }
2228
2229 bool wxSize_helper(PyObject* source, wxSize** obj)
2230 {
2231     if (source == Py_None) {
2232         **obj = wxSize(-1,-1);
2233         return True;
2234     }
2235     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2236 }
2237
2238
2239 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2240 {
2241     if (source == Py_None) {
2242         **obj = wxPoint(-1,-1);
2243         return True;
2244     }
2245     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2246 }
2247
2248
2249
2250 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2251
2252     if (source == Py_None) {
2253         **obj = wxRealPoint(-1,-1);
2254         return True;
2255     }
2256
2257     // If source is an object instance then it may already be the right type
2258     if (wxPySwigInstance_Check(source)) {
2259         wxRealPoint* ptr;
2260         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2261             goto error;
2262         *obj = ptr;
2263         return True;
2264     }
2265     // otherwise a 2-tuple of floats is expected
2266     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2267         PyObject* o1 = PySequence_GetItem(source, 0);
2268         PyObject* o2 = PySequence_GetItem(source, 1);
2269         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2270             Py_DECREF(o1);
2271             Py_DECREF(o2);
2272             goto error;
2273         }
2274         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2275         Py_DECREF(o1);
2276         Py_DECREF(o2);
2277         return True;
2278     }
2279
2280  error:
2281     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2282     return False;
2283 }
2284
2285
2286
2287 bool wxRect_helper(PyObject* source, wxRect** obj) {
2288
2289     if (source == Py_None) {
2290         **obj = wxRect(-1,-1,-1,-1);
2291         return True;
2292     }
2293
2294     // If source is an object instance then it may already be the right type
2295     if (wxPySwigInstance_Check(source)) {
2296         wxRect* ptr;
2297         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2298             goto error;
2299         *obj = ptr;
2300         return True;
2301     }
2302     // otherwise a 4-tuple of integers is expected
2303     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2304         PyObject* o1 = PySequence_GetItem(source, 0);
2305         PyObject* o2 = PySequence_GetItem(source, 1);
2306         PyObject* o3 = PySequence_GetItem(source, 2);
2307         PyObject* o4 = PySequence_GetItem(source, 3);
2308         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2309             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2310             Py_DECREF(o1);
2311             Py_DECREF(o2);
2312             Py_DECREF(o3);
2313             Py_DECREF(o4);
2314             goto error;
2315         }
2316         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2317                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2318         Py_DECREF(o1);
2319         Py_DECREF(o2);
2320         Py_DECREF(o3);
2321         Py_DECREF(o4);
2322         return True;
2323     }
2324
2325  error:
2326     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2327     return False;
2328 }
2329
2330
2331
2332 bool wxColour_helper(PyObject* source, wxColour** obj) {
2333
2334     if (source == Py_None) {
2335         **obj = wxNullColour;
2336         return True;
2337     }
2338
2339     // If source is an object instance then it may already be the right type
2340     if (wxPySwigInstance_Check(source)) {
2341         wxColour* ptr;
2342         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2343             goto error;
2344         *obj = ptr;
2345         return True;
2346     }
2347     // otherwise check for a string
2348     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2349         wxString spec = Py2wxString(source);
2350         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2351             long red, green, blue;
2352             red = green = blue = 0;
2353             spec.Mid(1,2).ToLong(&red,   16);
2354             spec.Mid(3,2).ToLong(&green, 16);
2355             spec.Mid(5,2).ToLong(&blue,  16);
2356
2357             **obj = wxColour(red, green, blue);
2358             return True;
2359         }
2360         else {                                       // it's a colour name
2361             **obj = wxColour(spec);
2362             return True;
2363         }
2364     }
2365     // last chance: 3-tuple of integers is expected
2366     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2367         PyObject* o1 = PySequence_GetItem(source, 0);
2368         PyObject* o2 = PySequence_GetItem(source, 1);
2369         PyObject* o3 = PySequence_GetItem(source, 2);
2370         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2371             Py_DECREF(o1);
2372             Py_DECREF(o2);
2373             Py_DECREF(o3);
2374             goto error;
2375         }
2376         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2377         Py_DECREF(o1);
2378         Py_DECREF(o2);
2379         Py_DECREF(o3);
2380         return True;
2381     }
2382
2383  error:
2384     PyErr_SetString(PyExc_TypeError,
2385                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2386     return False;
2387 }
2388
2389
2390 bool wxColour_typecheck(PyObject* source) {
2391
2392     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2393         return True;
2394
2395     if (PyString_Check(source) || PyUnicode_Check(source))
2396         return True;
2397
2398     return False;
2399 }
2400
2401
2402
2403 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2404
2405     if (source == Py_None) {
2406         **obj = wxPoint2D(-1,-1);
2407         return True;
2408     }
2409
2410     // If source is an object instance then it may already be the right type
2411     if (wxPySwigInstance_Check(source)) {
2412         wxPoint2D* ptr;
2413         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2414             goto error;
2415         *obj = ptr;
2416         return True;
2417     }
2418     // otherwise a length-2 sequence of floats is expected
2419     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2420         PyObject* o1 = PySequence_GetItem(source, 0);
2421         PyObject* o2 = PySequence_GetItem(source, 1);
2422         // This should really check for floats, not numbers -- but that would break code.
2423         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2424             Py_DECREF(o1);
2425             Py_DECREF(o2);
2426             goto error;
2427         }
2428         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2429         Py_DECREF(o1);
2430         Py_DECREF(o2);
2431         return True;
2432     }
2433  error:
2434     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2435     return False;
2436 }
2437
2438
2439 //----------------------------------------------------------------------
2440
2441 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2442
2443     PyObject* list = PyList_New(0);
2444     for (size_t i=0; i < arr.GetCount(); i++) {
2445 #if wxUSE_UNICODE
2446         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2447 #else
2448         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2449 #endif
2450         PyList_Append(list, str);
2451         Py_DECREF(str);
2452     }
2453     return list;
2454 }
2455
2456
2457 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2458
2459     PyObject* list = PyList_New(0);
2460     for (size_t i=0; i < arr.GetCount(); i++) {
2461         PyObject* number = PyInt_FromLong(arr[i]);
2462         PyList_Append(list, number);
2463         Py_DECREF(number);
2464     }
2465     return list;
2466 }
2467
2468
2469 //----------------------------------------------------------------------
2470 //----------------------------------------------------------------------
2471
2472
2473
2474