wxPython/src/helpers.cpp

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