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 <gdk/gdk.h>
  27 #include <gdk/gdkx.h>
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkprivate.h>
  30 #include <wx/gtk/win_gtk.h>
  31 #define GetXWindow(wxwin) (wxwin)->m_wxwindow ? \
  32                               GDK_WINDOW_XWINDOW(GTK_PIZZA((wxwin)->m_wxwindow)->bin_window) : \
  33                               GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
  34 #include <locale.h>
  35 #endif
  36
  37 #ifdef __WXX11__
  38 #include "wx/x11/privx.h"
  39 #define GetXWindow(wxwin)   ((Window)(wxwin)->GetHandle())
  40 #endif
  41
  42 #ifdef __WXMAC__
  43 #include <wx/mac/private.h>
  44 #endif
  45
  46 #include <wx/clipbrd.h>
  47 #include <wx/mimetype.h>
  48 #include <wx/image.h>
  49
  50 //----------------------------------------------------------------------
  51
  52 #if PYTHON_API_VERSION < 1009 && wxUSE_UNICODE
  53 #error Python must support Unicode to use wxWindows Unicode
  54 #endif
  55
  56 //----------------------------------------------------------------------
  57
  58 wxPyApp* wxPythonApp = NULL;  // Global instance of application object
  59 bool wxPyDoCleanup = false;
  60 bool wxPyDoingCleanup = false;
  61
  62
  63 #ifdef WXP_WITH_THREAD
  64 #if !wxPyUSE_GIL_STATE
  65 struct wxPyThreadState {
  66     unsigned long  tid;
  67     PyThreadState* tstate;
  68
  69     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  70         : tid(_tid), tstate(_tstate) {}
  71 };
  72
  73 #include <wx/dynarray.h>
  74 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  75 #include <wx/arrimpl.cpp>
  76 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  77
  78 wxPyThreadStateArray* wxPyTStates = NULL;
  79 wxMutex*              wxPyTMutex = NULL;
  80
  81 #endif
  82 #endif
  83
  84
  85 #define DEFAULTENCODING_SIZE 64
  86 static char wxPyDefaultEncoding[DEFAULTENCODING_SIZE] = "ascii";
  87
  88 static PyObject* wxPython_dict = NULL;
  89 static PyObject* wxPyAssertionError = NULL;
  90 static PyObject* wxPyNoAppError = NULL;
  91
  92 PyObject* wxPyPtrTypeMap = NULL;
  93
  94
  95 #ifdef __WXMSW__             // If building for win32...
  96 //----------------------------------------------------------------------
  97 // This gets run when the DLL is loaded.  We just need to save a handle.
  98 //----------------------------------------------------------------------
  99
 100 BOOL WINAPI DllMain(
 101     HINSTANCE   hinstDLL,    // handle to DLL module
 102     DWORD       fdwReason,   // reason for calling function
 103     LPVOID      lpvReserved  // reserved
 104    )
 105 {
 106     // If wxPython is embedded in another wxWidgets app then
 107     // the instance has already been set.
 108     if (! wxGetInstance())
 109         wxSetInstance(hinstDLL);
 110     return true;
 111 }
 112 #endif
 113
 114 //----------------------------------------------------------------------
 115 // Classes for implementing the wxp main application shell.
 116 //----------------------------------------------------------------------
 117
 118 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
 119
 120
 121 wxPyApp::wxPyApp() {
 122     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 123     m_startupComplete = false;
 124 }
 125
 126
 127 wxPyApp::~wxPyApp() {
 128 }
 129
 130
 131 // This one isn't acutally called...  We fake it with _BootstrapApp
 132 bool wxPyApp::OnInit() {
 133     return false;
 134 }
 135
 136
 137 int  wxPyApp::MainLoop() {
 138     int retval = 0;
 139
 140     DeletePendingObjects();
 141     bool initialized = wxTopLevelWindows.GetCount() != 0;
 142     if (initialized) {
 143         if ( m_exitOnFrameDelete == Later ) {
 144             m_exitOnFrameDelete = Yes;
 145         }
 146
 147         retval = wxApp::MainLoop();
 148         OnExit();
 149     }
 150     return retval;
 151 }
 152
 153
 154 bool wxPyApp::OnInitGui() {
 155     bool rval=true;
 156     wxApp::OnInitGui();  // in this case always call the base class version
 157     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 158     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 159         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 160     wxPyEndBlockThreads(blocked);
 161     return rval;
 162 }
 163
 164
 165 int wxPyApp::OnExit() {
 166     int rval=0;
 167     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 168     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 169         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 170     wxPyEndBlockThreads(blocked);
 171     wxApp::OnExit();  // in this case always call the base class version
 172     return rval;
 173 }
 174
 175
 176 #ifdef __WXDEBUG__
 177 void wxPyApp::OnAssert(const wxChar *file,
 178                      int line,
 179                      const wxChar *cond,
 180                      const wxChar *msg) {
 181
 182     // if we're not fully initialized then just log the error
 183     if (! m_startupComplete) {
 184         wxString buf;
 185         buf.Alloc(4096);
 186         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 187                    file, line, cond);
 188         if (msg != NULL) {
 189             buf += wxT(": ");
 190             buf += msg;
 191         }
 192         wxLogDebug(buf);
 193         return;
 194     }
 195
 196     // If the OnAssert is overloaded in the Python class then call it...
 197     bool found;
 198     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 199     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 200         PyObject* fso = wx2PyString(file);
 201         PyObject* cso = wx2PyString(file);
 202         PyObject* mso;
 203         if (msg != NULL)
 204             mso = wx2PyString(file);
 205         else {
 206             mso = Py_None; Py_INCREF(Py_None);
 207         }
 208         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 209         Py_DECREF(fso);
 210         Py_DECREF(cso);
 211         Py_DECREF(mso);
 212     }
 213     wxPyEndBlockThreads(blocked);
 214
 215     // ...otherwise do our own thing with it
 216     if (! found) {
 217         // ignore it?
 218         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 219             return;
 220
 221         // turn it into a Python exception?
 222         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 223             wxString buf;
 224             buf.Alloc(4096);
 225             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 226             if (msg != NULL) {
 227                 buf += wxT(": ");
 228                 buf += msg;
 229             }
 230
 231             // set the exception
 232             wxPyBlock_t blocked = wxPyBeginBlockThreads();
 233             PyObject* s = wx2PyString(buf);
 234             PyErr_SetObject(wxPyAssertionError, s);
 235             Py_DECREF(s);
 236             wxPyEndBlockThreads(blocked);
 237
 238             // Now when control returns to whatever API wrapper was called from
 239             // Python it should detect that an exception is set and will return
 240             // NULL, signalling the exception to Python.
 241         }
 242
 243         // Send it to the normal log destination, but only if
 244         // not _DIALOG because it will call this too
 245         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 246             wxString buf;
 247             buf.Alloc(4096);
 248             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 249                        file, line, cond);
 250             if (msg != NULL) {
 251                 buf += wxT(": ");
 252                 buf += msg;
 253             }
 254             wxLogDebug(buf);
 255         }
 256
 257         // do the normal wx assert dialog?
 258         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 259             wxApp::OnAssert(file, line, cond, msg);
 260     }
 261 }
 262 #endif
 263
 264     // For catching Apple Events
 265 void wxPyApp::MacOpenFile(const wxString &fileName)
 266 {
 267     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 268     if (wxPyCBH_findCallback(m_myInst, "MacOpenFile")) {
 269         PyObject* s = wx2PyString(fileName);
 270         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 271         Py_DECREF(s);
 272     }
 273     wxPyEndBlockThreads(blocked);
 274 }
 275
 276 void wxPyApp::MacPrintFile(const wxString &fileName)
 277 {
 278     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 279     if (wxPyCBH_findCallback(m_myInst, "MacPrintFile")) {
 280         PyObject* s = wx2PyString(fileName);
 281         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s));
 282         Py_DECREF(s);
 283     }
 284     wxPyEndBlockThreads(blocked);
 285 }
 286
 287 void wxPyApp::MacNewFile()
 288 {
 289     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 290     if (wxPyCBH_findCallback(m_myInst, "MacNewFile"))
 291         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 292     wxPyEndBlockThreads(blocked);
 293 }
 294
 295 void wxPyApp::MacReopenApp()
 296 {
 297     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 298     if (wxPyCBH_findCallback(m_myInst, "MacReopenApp"))
 299         wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 300     wxPyEndBlockThreads(blocked);
 301 }
 302
 303
 304 /*static*/
 305 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 306 #ifdef __WXMAC__
 307     return s_macSupportPCMenuShortcuts;
 308 #else
 309     return 0;
 310 #endif
 311 }
 312
 313 /*static*/
 314 long wxPyApp::GetMacAboutMenuItemId() {
 315 #ifdef __WXMAC__
 316     return s_macAboutMenuItemId;
 317 #else
 318     return 0;
 319 #endif
 320 }
 321
 322 /*static*/
 323 long wxPyApp::GetMacPreferencesMenuItemId() {
 324 #ifdef __WXMAC__
 325     return s_macPreferencesMenuItemId;
 326 #else
 327     return 0;
 328 #endif
 329 }
 330
 331 /*static*/
 332 long wxPyApp::GetMacExitMenuItemId() {
 333 #ifdef __WXMAC__
 334     return s_macExitMenuItemId;
 335 #else
 336     return 0;
 337 #endif
 338 }
 339
 340 /*static*/
 341 wxString wxPyApp::GetMacHelpMenuTitleName() {
 342 #ifdef __WXMAC__
 343     return s_macHelpMenuTitleName;
 344 #else
 345     return wxEmptyString;
 346 #endif
 347 }
 348
 349 /*static*/
 350 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 351 #ifdef __WXMAC__
 352     s_macSupportPCMenuShortcuts = val;
 353 #endif
 354 }
 355
 356 /*static*/
 357 void wxPyApp::SetMacAboutMenuItemId(long val) {
 358 #ifdef __WXMAC__
 359     s_macAboutMenuItemId = val;
 360 #endif
 361 }
 362
 363 /*static*/
 364 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 365 #ifdef __WXMAC__
 366     s_macPreferencesMenuItemId = val;
 367 #endif
 368 }
 369
 370 /*static*/
 371 void wxPyApp::SetMacExitMenuItemId(long val) {
 372 #ifdef __WXMAC__
 373     s_macExitMenuItemId = val;
 374 #endif
 375 }
 376
 377 /*static*/
 378 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 379 #ifdef __WXMAC__
 380     s_macHelpMenuTitleName = val;
 381 #endif
 382 }
 383
 384
 385 // This finishes the initialization of wxWindows and then calls the OnInit
 386 // that should be present in the derived (Python) class.
 387 void wxPyApp::_BootstrapApp()
 388 {
 389     static      bool haveInitialized = false;
 390     bool        result;
 391     wxPyBlock_t     blocked;
 392     PyObject*   retval = NULL;
 393     PyObject*   pyint  = NULL;
 394
 395
 396     // Only initialize wxWidgets once
 397     if (! haveInitialized) {
 398
 399         // Get any command-line args passed to this program from the sys module
 400         int    argc = 0;
 401         char** argv = NULL;
 402         blocked = wxPyBeginBlockThreads();
 403         PyObject* sysargv = PySys_GetObject("argv");
 404         if (sysargv != NULL) {
 405             argc = PyList_Size(sysargv);
 406             argv = new char*[argc+1];
 407             int x;
 408             for(x=0; x<argc; x++) {
 409                 PyObject *pyArg = PyList_GetItem(sysargv, x);
 410                 argv[x] = PyString_AsString(pyArg);
 411             }
 412             argv[argc] = NULL;
 413         }
 414         wxPyEndBlockThreads(blocked);
 415
 416         // Initialize wxWidgets
 417         result = wxEntryStart(argc, argv);
 418         delete [] argv;
 419
 420         blocked = wxPyBeginBlockThreads();
 421         if (! result)  {
 422             PyErr_SetString(PyExc_SystemError,
 423                             "wxEntryStart failed, unable to initialize wxWidgets!"
 424 #ifdef __WXGTK__
 425                             "  (Is DISPLAY set properly?)"
 426 #endif
 427                 );
 428             goto error;
 429         }
 430
 431         // On wxGTK the locale will be changed to match the system settings,
 432         // but Python before 2.4 needs to have LC_NUMERIC set to "C" in order
 433         // for the floating point conversions and such to work right.
 434 #if defined(__WXGTK__) && PY_VERSION_HEX < 0x02040000
 435         setlocale(LC_NUMERIC, "C");
 436 #endif
 437
 438         // The stock objects were all NULL when they were loaded into
 439         // SWIG generated proxies, so re-init those now...
 440         wxPy_ReinitStockObjects(3);
 441
 442         wxPyEndBlockThreads(blocked);
 443         haveInitialized = true;
 444     }
 445
 446     // It's now ok to generate exceptions for assertion errors.
 447     wxPythonApp->SetStartupComplete(true);
 448
 449     // Call the Python wxApp's OnInit function
 450     blocked = wxPyBeginBlockThreads();
 451     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 452
 453         PyObject* method = m_myInst.GetLastFound();
 454         PyObject* argTuple = PyTuple_New(0);
 455         retval = PyEval_CallObject(method, argTuple);
 456         Py_DECREF(argTuple);
 457         Py_DECREF(method);
 458         if (retval == NULL)
 459             goto error;
 460
 461         pyint = PyNumber_Int(retval);
 462         if (! pyint) {
 463             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 464             goto error;
 465         }
 466         result = PyInt_AS_LONG(pyint);
 467     }
 468     else {
 469         // Is it okay if there is no OnInit?  Probably so...
 470         result = true;
 471     }
 472
 473     if (! result) {
 474         PyErr_SetString(PyExc_SystemExit, "OnInit returned false, exiting...");
 475     }
 476
 477  error:
 478     Py_XDECREF(retval);
 479     Py_XDECREF(pyint);
 480
 481     wxPyEndBlockThreads(blocked);
 482 };
 483
 484 //---------------------------------------------------------------------
 485 //----------------------------------------------------------------------
 486
 487
 488 #if 0
 489 static char* wxPyCopyCString(const wxChar* src)
 490 {
 491     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 492     size_t len = strlen(buff);
 493     char*  dest = new char[len+1];
 494     strcpy(dest, buff);
 495     return dest;
 496 }
 497
 498 #if wxUSE_UNICODE
 499 static char* wxPyCopyCString(const char* src)   // we need a char version too
 500 {
 501     size_t len = strlen(src);
 502     char*  dest = new char[len+1];
 503     strcpy(dest, src);
 504     return dest;
 505 }
 506 #endif
 507
 508 static wxChar* wxPyCopyWString(const char *src)
 509 {
 510     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 511     wxString str(src, *wxConvCurrent);
 512     return copystring(str);
 513 }
 514
 515 #if wxUSE_UNICODE
 516 static wxChar* wxPyCopyWString(const wxChar *src)
 517 {
 518     return copystring(src);
 519 }
 520 #endif
 521 #endif
 522
 523
 524 inline const char* dropwx(const char* name) {
 525     if (name[0] == 'w' && name[1] == 'x')
 526         return name+2;
 527     else
 528         return name;
 529 }
 530
 531 //----------------------------------------------------------------------
 532
 533 // This function is called when the wx._core_ module is imported to do some
 534 // initial setup.  (Before there is a wxApp object.)  The rest happens in
 535 // wxPyApp::_BootstrapApp
 536 void __wxPyPreStart(PyObject* moduleDict)
 537 {
 538
 539 #ifdef __WXMSW__
 540 //     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF
 541 //                     | _CRTDBG_CHECK_ALWAYS_DF
 542 //                     | _CRTDBG_DELAY_FREE_MEM_DF
 543 //         );
 544 #endif
 545
 546 #ifdef WXP_WITH_THREAD
 547 #if wxPyUSE_GIL_STATE
 548     PyEval_InitThreads();
 549 #else
 550     PyEval_InitThreads();
 551     wxPyTStates = new wxPyThreadStateArray;
 552     wxPyTMutex = new wxMutex;
 553
 554     // Save the current (main) thread state in our array
 555     PyThreadState* tstate = wxPyBeginAllowThreads();
 556     wxPyEndAllowThreads(tstate);
 557 #endif
 558 #endif
 559
 560     // Ensure that the build options in the DLL (or whatever) match this build
 561     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 562
 563     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 564     wxPy_ReinitStockObjects(1);
 565
 566     wxInitAllImageHandlers();
 567 }
 568
 569
 570
 571 void __wxPyCleanup() {
 572     wxPyDoingCleanup = true;
 573     if (wxPyDoCleanup) {
 574         wxPyDoCleanup = false;
 575         wxEntryCleanup();
 576     }
 577 #ifdef WXP_WITH_THREAD
 578 #if !wxPyUSE_GIL_STATE
 579     delete wxPyTMutex;
 580     wxPyTMutex = NULL;
 581     wxPyTStates->Empty();
 582     delete wxPyTStates;
 583     wxPyTStates = NULL;
 584 #endif
 585 #endif
 586 }
 587
 588
 589 // Save a reference to the dictionary of the wx._core module, and inject
 590 // a few more things into it.
 591 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 592 {
 593
 594     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 595         return NULL;
 596
 597     if (!PyDict_Check(wxPython_dict)) {
 598         PyErr_SetString(PyExc_TypeError,
 599                         "_wxPySetDictionary must have dictionary object!");
 600         return NULL;
 601     }
 602
 603     if (! wxPyPtrTypeMap)
 604         wxPyPtrTypeMap = PyDict_New();
 605     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 606
 607     // Create an exception object to use for wxASSERTions
 608     wxPyAssertionError = PyErr_NewException("wx._core.PyAssertionError",
 609                                             PyExc_AssertionError, NULL);
 610     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 611
 612     // Create an exception object to use when the app object hasn't been created yet
 613     wxPyNoAppError = PyErr_NewException("wx._core.PyNoAppError",
 614                                         PyExc_RuntimeError, NULL);
 615     PyDict_SetItemString(wxPython_dict, "PyNoAppError", wxPyNoAppError);
 616
 617
 618
 619 #ifdef __WXMOTIF__
 620 #define wxPlatform "__WXMOTIF__"
 621 #define wxPlatName "wxMotif"
 622 #endif
 623 #ifdef __WXX11__
 624 #define wxPlatform "__WXX11__"
 625 #define wxPlatName "wxX11"
 626 #endif
 627 #ifdef __WXGTK__
 628 #define wxPlatform "__WXGTK__"
 629 #define wxPlatName "wxGTK"
 630 #endif
 631 #ifdef __WXMSW__
 632 #define wxPlatform "__WXMSW__"
 633 #define wxPlatName "wxMSW"
 634 #endif
 635 #ifdef __WXMAC__
 636 #define wxPlatform "__WXMAC__"
 637 #define wxPlatName "wxMac"
 638 #endif
 639
 640 #ifdef __WXDEBUG__
 641     int wxdebug = 1;
 642 #else
 643     int wxdebug = 0;
 644 #endif
 645
 646     // These should be deprecated in favor of the PlatformInfo tuple built below...
 647     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 648     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 649     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 650
 651     // Make a tuple of strings that gives more info about the platform.
 652     PyObject* PlatInfo = PyList_New(0);
 653     PyObject* obj;
 654
 655 #define _AddInfoString(st) \
 656     obj = PyString_FromString(st); \
 657     PyList_Append(PlatInfo, obj); \
 658     Py_DECREF(obj)
 659
 660     _AddInfoString(wxPlatform);
 661     _AddInfoString(wxPlatName);
 662 #if wxUSE_UNICODE
 663     _AddInfoString("unicode");
 664 #else
 665     _AddInfoString("ansi");
 666 #endif
 667 #ifdef __WXGTK__
 668 #ifdef __WXGTK20__
 669     _AddInfoString("gtk2");
 670 #else
 671     _AddInfoString("gtk1");
 672 #endif
 673 #endif
 674 #ifdef __WXDEBUG__
 675     _AddInfoString("wx-assertions-on");
 676 #else
 677     _AddInfoString("wx-assertions-off");
 678 #endif
 679
 680 #undef _AddInfoString
 681
 682     PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
 683     Py_DECREF(PlatInfo);
 684     PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple);
 685
 686     RETURN_NONE();
 687 }
 688
 689
 690 //---------------------------------------------------------------------------
 691
 692 // Python's PyInstance_Check does not return True for instances of new-style
 693 // classes.  This should get close enough for both new and old classes but I
 694 // should re-evaluate the need for doing instance checks...
 695 bool wxPyInstance_Check(PyObject* obj) {
 696     return PyObject_HasAttrString(obj, "__class__") != 0;
 697 }
 698
 699
 700 // This one checks if the object is an instance of a SWIG proxy class (it has
 701 // a .this attribute)
 702 bool wxPySwigInstance_Check(PyObject* obj) {
 703     return PyObject_HasAttrString(obj, "this") != 0;
 704 }
 705
 706 //---------------------------------------------------------------------------
 707
 708 // The stock objects are no longer created when the wx._core_ module is
 709 // imported, but only after the app object has been created.  The
 710 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 711 // objects though various stages of evolution:
 712 //
 713 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 714 //           object will be created (otherwise SWIG will just use None.)
 715 //
 716 //   pass 2: After the module has been imported and the python proxys have
 717 //           been created, then set the __class__ to be _wxPyUnbornObject so
 718 //           it will catch any access to the object and will raise an exception.
 719 //
 720 //   pass 3: Finally, from BootstrapApp patch things up so the stock objects
 721 //           can be used.
 722
 723
 724 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 725 {
 726     wxPy_ReinitStockObjects(2);
 727     RETURN_NONE();
 728 }
 729
 730
 731 static void rsoPass2(const char* name)
 732 {
 733     static PyObject* unbornObjectClass = NULL;
 734     PyObject* obj;
 735
 736     if (unbornObjectClass == NULL) {
 737         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 738         Py_INCREF(unbornObjectClass);
 739     }
 740
 741     // Find the object instance
 742     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 743     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 744     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 745
 746     // Change its class
 747     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 748
 749 }
 750
 751 static void rsoPass3(const char* name, const char* classname, void* ptr)
 752 {
 753     PyObject* obj;
 754     PyObject* classobj;
 755     PyObject* ptrobj;
 756
 757     // Find the object instance
 758     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 759     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 760     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 761
 762     // Find the class object and put it back in the instance
 763     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 764     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 765     PyObject_SetAttrString(obj, "__class__",  classobj);
 766
 767     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 768     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 769     PyObject_SetAttrString(obj, "this", ptrobj);
 770     Py_DECREF(ptrobj);
 771 }
 772
 773
 774
 775 void wxPy_ReinitStockObjects(int pass)
 776 {
 777
 778     // If there is already an App object then wxPython is probably embedded in
 779     // a wx C++ application, so there is no need to do all this.
 780     static bool embedded = false;
 781     if ((pass == 1 || pass == 2) && wxTheApp) {
 782         embedded = true;
 783         return;
 784     }
 785     if (pass == 3 && embedded)
 786         return;
 787
 788
 789 #define REINITOBJ(name, classname) \
 790     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 791     else if (pass == 2) { rsoPass2(#name); } \
 792     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 793
 794
 795 #define REINITOBJ2(name, classname) \
 796     if (pass == 1) { } \
 797     else if (pass == 2) { rsoPass2(#name); } \
 798     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 799
 800
 801     REINITOBJ(wxNORMAL_FONT, wxFont);
 802     REINITOBJ(wxSMALL_FONT, wxFont);
 803     REINITOBJ(wxITALIC_FONT, wxFont);
 804     REINITOBJ(wxSWISS_FONT, wxFont);
 805
 806     REINITOBJ(wxRED_PEN, wxPen);
 807     REINITOBJ(wxCYAN_PEN, wxPen);
 808     REINITOBJ(wxGREEN_PEN, wxPen);
 809     REINITOBJ(wxBLACK_PEN, wxPen);
 810     REINITOBJ(wxWHITE_PEN, wxPen);
 811     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 812     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 813     REINITOBJ(wxGREY_PEN, wxPen);
 814     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 815     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 816
 817     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 818     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 819     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 820     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 821     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 822     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 823     REINITOBJ(wxRED_BRUSH, wxBrush);
 824     REINITOBJ(wxGREY_BRUSH, wxBrush);
 825     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 826     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 827
 828     REINITOBJ(wxBLACK, wxColour);
 829     REINITOBJ(wxWHITE, wxColour);
 830     REINITOBJ(wxRED, wxColour);
 831     REINITOBJ(wxBLUE, wxColour);
 832     REINITOBJ(wxGREEN, wxColour);
 833     REINITOBJ(wxCYAN, wxColour);
 834     REINITOBJ(wxLIGHT_GREY, wxColour);
 835
 836     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 837     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 838     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 839
 840     REINITOBJ2(wxNullBitmap, wxBitmap);
 841     REINITOBJ2(wxNullIcon, wxIcon);
 842     REINITOBJ2(wxNullCursor, wxCursor);
 843     REINITOBJ2(wxNullPen, wxPen);
 844     REINITOBJ2(wxNullBrush, wxBrush);
 845     REINITOBJ2(wxNullPalette, wxPalette);
 846     REINITOBJ2(wxNullFont, wxFont);
 847     REINITOBJ2(wxNullColour, wxColour);
 848
 849     REINITOBJ(wxTheFontList, wxFontList);
 850     REINITOBJ(wxThePenList, wxPenList);
 851     REINITOBJ(wxTheBrushList, wxBrushList);
 852     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 853
 854
 855     REINITOBJ2(wxDefaultValidator, wxValidator);
 856     REINITOBJ2(wxNullImage, wxImage);
 857     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 858
 859 #undef REINITOBJ
 860 #undef REINITOBJ2
 861 }
 862
 863 //---------------------------------------------------------------------------
 864
 865 // Check for existence of a wxApp, setting an exception if there isn't one.
 866 // This doesn't need to aquire the GIL because it should only be called from
 867 // an %exception before the lock is released.
 868
 869 bool wxPyCheckForApp() {
 870     if (wxTheApp != NULL)
 871         return true;
 872     else {
 873         PyErr_SetString(wxPyNoAppError, "The wx.App object must be created first!");
 874         return false;
 875     }
 876 }
 877
 878 //---------------------------------------------------------------------------
 879
 880 void wxPyUserData_dtor(wxPyUserData* self) {
 881     if (! wxPyDoingCleanup) {
 882         wxPyBlock_t blocked = wxPyBeginBlockThreads();
 883         Py_DECREF(self->m_obj);
 884         self->m_obj = NULL;
 885         wxPyEndBlockThreads(blocked);
 886     }
 887 }
 888
 889
 890 void wxPyClientData_dtor(wxPyClientData* self) {
 891     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 892                                         // may have already garbage collected the object...
 893         if (self->m_incRef) {
 894             wxPyBlock_t blocked = wxPyBeginBlockThreads();
 895             Py_DECREF(self->m_obj);
 896             wxPyEndBlockThreads(blocked);
 897         }
 898         self->m_obj = NULL;
 899     }
 900 }
 901
 902
 903
 904 // This is called when an OOR controled object is being destroyed.  Although
 905 // the C++ object is going away there is no way to force the Python object
 906 // (and all references to it) to die too.  This causes problems (crashes) in
 907 // wxPython when a python shadow object attempts to call a C++ method using
 908 // the now bogus pointer... So to try and prevent this we'll do a little black
 909 // magic and change the class of the python instance to a class that will
 910 // raise an exception for any attempt to call methods with it.  See
 911 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 912 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 913
 914     static PyObject* deadObjectClass = NULL;
 915
 916     wxPyBlock_t blocked = wxPyBeginBlockThreads();
 917     if (deadObjectClass == NULL) {
 918         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 919         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 920         // will lead to a deadlock when it tries to aquire the GIL again.
 921         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 922         Py_INCREF(deadObjectClass);
 923     }
 924
 925
 926     // Only if there is more than one reference to the object and we are
 927     // holding the OOR reference:
 928     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 && self->m_incRef) {
 929         // bool isInstance = wxPyInstance_Check(self->m_obj);
 930         // TODO same here
 931         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 932
 933         // Call __del__, if there is one.
 934         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 935         if (func) {
 936             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 937             Py_XDECREF(rv);
 938             Py_DECREF(func);
 939         }
 940         if (PyErr_Occurred())
 941             PyErr_Clear();      // just ignore it for now
 942
 943
 944         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 945         if (dict) {
 946             // Clear the instance's dictionary
 947             PyDict_Clear(dict);
 948
 949             // put the name of the old class into the instance, and then reset the
 950             // class to be the dead class.
 951             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 952             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 953             PyDict_SetItemString(dict, "_name", name);
 954             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 955             //Py_INCREF(deadObjectClass);
 956             Py_DECREF(klass);
 957             Py_DECREF(name);
 958         }
 959     }
 960
 961     // m_obj is DECREF'd in the base class dtor...
 962     wxPyEndBlockThreads(blocked);
 963 }
 964
 965
 966 //---------------------------------------------------------------------------
 967 // Stuff used by OOR to find the right wxPython class type to return and to
 968 // build it.
 969
 970
 971 // The pointer type map is used when the "pointer" type name generated by SWIG
 972 // is not the same as the shadow class name, for example wxPyTreeCtrl
 973 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 974 // so we'll just make it a Python dictionary in the wx module's namespace.
 975 // (See __wxSetDictionary)
 976 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 977     if (! wxPyPtrTypeMap)
 978         wxPyPtrTypeMap = PyDict_New();
 979     PyDict_SetItemString(wxPyPtrTypeMap,
 980                          (char*)commonName,
 981                          PyString_FromString((char*)ptrName));
 982 }
 983
 984
 985
 986
 987 PyObject*  wxPyMake_wxObject(wxObject* source, bool setThisOwn, bool checkEvtHandler) {
 988     PyObject* target = NULL;
 989     bool      isEvtHandler = false;
 990
 991     if (source) {
 992         // If it's derived from wxEvtHandler then there may
 993         // already be a pointer to a Python object that we can use
 994         // in the OOR data.
 995         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 996             isEvtHandler = true;
 997             wxEvtHandler* eh = (wxEvtHandler*)source;
 998             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 999             if (data) {
1000                 target = data->m_obj;
1001                 if (target)
1002                     Py_INCREF(target);
1003             }
1004         }
1005
1006         if (! target) {
1007             // Otherwise make it the old fashioned way by making a new shadow
1008             // object and putting this pointer in it.  Look up the class
1009             // heirarchy until we find a class name that is located in the
1010             // python module.
1011             const wxClassInfo* info   = source->GetClassInfo();
1012             wxString           name   = info->GetClassName();
1013             bool               exists = wxPyCheckSwigType(name);
1014             while (info && !exists) {
1015                 info = info->GetBaseClass1();
1016                 name = info->GetClassName();
1017                 exists = wxPyCheckSwigType(name);
1018             }
1019             if (info) {
1020                 target = wxPyConstructObject((void*)source, name, setThisOwn);
1021                 if (target && isEvtHandler)
1022                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
1023             } else {
1024                 wxString msg(wxT("wxPython class not found for "));
1025                 msg += source->GetClassInfo()->GetClassName();
1026                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
1027                 target = NULL;
1028             }
1029         }
1030     } else {  // source was NULL so return None.
1031         Py_INCREF(Py_None); target = Py_None;
1032     }
1033     return target;
1034 }
1035
1036
1037 PyObject*  wxPyMake_wxSizer(wxSizer* source, bool setThisOwn) {
1038     PyObject* target = NULL;
1039
1040     if (source && wxIsKindOf(source, wxSizer)) {
1041         // If it's derived from wxSizer then there may already be a pointer to
1042         // a Python object that we can use in the OOR data.
1043         wxSizer* sz = (wxSizer*)source;
1044         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
1045         if (data) {
1046             target = data->m_obj;
1047             if (target)
1048                 Py_INCREF(target);
1049         }
1050     }
1051     if (! target) {
1052         target = wxPyMake_wxObject(source, setThisOwn, false);
1053         if (target != Py_None)
1054             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
1055     }
1056     return target;
1057 }
1058
1059
1060 //---------------------------------------------------------------------------
1061
1062
1063 #ifdef WXP_WITH_THREAD
1064 #if !wxPyUSE_GIL_STATE
1065
1066 inline
1067 unsigned long wxPyGetCurrentThreadId() {
1068     return wxThread::GetCurrentId();
1069 }
1070
1071 static wxPyThreadState gs_shutdownTState;
1072
1073 static
1074 wxPyThreadState* wxPyGetThreadState() {
1075     if (wxPyTMutex == NULL) // Python is shutting down...
1076         return &gs_shutdownTState;
1077
1078     unsigned long ctid = wxPyGetCurrentThreadId();
1079     wxPyThreadState* tstate = NULL;
1080
1081     wxPyTMutex->Lock();
1082     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1083         wxPyThreadState& info = wxPyTStates->Item(i);
1084         if (info.tid == ctid) {
1085             tstate = &info;
1086             break;
1087         }
1088     }
1089     wxPyTMutex->Unlock();
1090     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
1091     return tstate;
1092 }
1093
1094
1095 static
1096 void wxPySaveThreadState(PyThreadState* tstate) {
1097     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
1098         gs_shutdownTState.tstate = tstate;
1099         return;
1100     }
1101     unsigned long ctid = wxPyGetCurrentThreadId();
1102     wxPyTMutex->Lock();
1103     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
1104         wxPyThreadState& info = wxPyTStates->Item(i);
1105         if (info.tid == ctid) {
1106 #if 0
1107             if (info.tstate != tstate)
1108                 wxLogMessage("*** tstate mismatch!???");
1109 #endif
1110             info.tstate = tstate;    // allow for transient tstates
1111             // Normally it will never change, but apparently COM callbacks
1112             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
1113             // tstate which will then be garbage the next time we try to use
1114             // it...
1115
1116             wxPyTMutex->Unlock();
1117             return;
1118         }
1119     }
1120     // not found, so add it...
1121     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
1122     wxPyTMutex->Unlock();
1123 }
1124
1125 #endif
1126 #endif
1127
1128
1129
1130 // Calls from Python to wxWindows code are wrapped in calls to these
1131 // functions:
1132
1133 PyThreadState* wxPyBeginAllowThreads() {
1134 #ifdef WXP_WITH_THREAD
1135     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
1136 #if !wxPyUSE_GIL_STATE
1137     wxPySaveThreadState(saved);
1138 #endif
1139     return saved;
1140 #else
1141     return NULL;
1142 #endif
1143 }
1144
1145 void wxPyEndAllowThreads(PyThreadState* saved) {
1146 #ifdef WXP_WITH_THREAD
1147     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
1148 #endif
1149 }
1150
1151
1152
1153 // Calls from wxWindows back to Python code, or even any PyObject
1154 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
1155
1156 wxPyBlock_t wxPyBeginBlockThreads() {
1157 #ifdef WXP_WITH_THREAD
1158 #if wxPyUSE_GIL_STATE
1159     PyGILState_STATE state = PyGILState_Ensure();
1160     return state;
1161 #else
1162     PyThreadState *current = _PyThreadState_Current;
1163
1164     // Only block if there wasn't already a tstate, or if the current one is
1165     // not the one we are wanting to change to.  This should prevent deadlock
1166     // if there are nested calls to wxPyBeginBlockThreads
1167     wxPyBlock_t blocked = false;
1168     wxPyThreadState* tstate = wxPyGetThreadState();
1169     if (current != tstate->tstate) {
1170         PyEval_RestoreThread(tstate->tstate);
1171         blocked = true;
1172     }
1173     return blocked;
1174 #endif
1175 #else
1176     return false;
1177 #endif
1178 }
1179
1180
1181 void wxPyEndBlockThreads(wxPyBlock_t blocked) {
1182 #ifdef WXP_WITH_THREAD
1183 #if wxPyUSE_GIL_STATE
1184     PyGILState_Release(blocked);
1185 #else
1186     // Only unblock if we blocked in the last call to wxPyBeginBlockThreads.
1187     // The value of blocked passed in needs to be the same as that returned
1188     // from wxPyBeginBlockThreads at the same nesting level.
1189     if ( blocked ) {
1190         PyEval_SaveThread();
1191     }
1192 #endif
1193 #endif
1194 }
1195
1196
1197 //---------------------------------------------------------------------------
1198 // wxPyInputStream and wxPyCBInputStream methods
1199
1200
1201 void wxPyInputStream::close() {
1202     /* do nothing for now */
1203 }
1204
1205 void wxPyInputStream::flush() {
1206     /* do nothing for now */
1207 }
1208
1209 bool wxPyInputStream::eof() {
1210     if (m_wxis)
1211         return m_wxis->Eof();
1212     else
1213         return true;
1214 }
1215
1216 wxPyInputStream::~wxPyInputStream() {
1217     if (m_wxis)
1218         delete m_wxis;
1219 }
1220
1221
1222
1223
1224 PyObject* wxPyInputStream::read(int size) {
1225     PyObject* obj = NULL;
1226     wxMemoryBuffer buf;
1227     const int BUFSIZE = 1024;
1228
1229     // check if we have a real wxInputStream to work with
1230     if (!m_wxis) {
1231         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1232         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1233         wxPyEndBlockThreads(blocked);
1234         return NULL;
1235     }
1236
1237     if (size < 0) {
1238         // read while bytes are available on the stream
1239         while ( m_wxis->CanRead() ) {
1240             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1241             buf.UngetAppendBuf(m_wxis->LastRead());
1242         }
1243
1244     } else {  // Read only size number of characters
1245         m_wxis->Read(buf.GetWriteBuf(size), size);
1246         buf.UngetWriteBuf(m_wxis->LastRead());
1247     }
1248
1249     // error check
1250     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1251     wxStreamError err = m_wxis->GetLastError();
1252     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1253         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1254     }
1255     else {
1256         // We use only strings for the streams, not unicode
1257         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1258     }
1259     wxPyEndBlockThreads(blocked);
1260     return obj;
1261 }
1262
1263
1264 PyObject* wxPyInputStream::readline(int size) {
1265     PyObject* obj = NULL;
1266     wxMemoryBuffer buf;
1267     int i;
1268     char ch;
1269
1270     // check if we have a real wxInputStream to work with
1271     if (!m_wxis) {
1272         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1273         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1274         wxPyEndBlockThreads(blocked);
1275         return NULL;
1276     }
1277
1278     // read until \n or byte limit reached
1279     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1280         ch = m_wxis->GetC();
1281         buf.AppendByte(ch);
1282     }
1283
1284     // errorcheck
1285     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1286     wxStreamError err = m_wxis->GetLastError();
1287     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1288         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1289     }
1290     else {
1291         // We use only strings for the streams, not unicode
1292         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1293     }
1294     wxPyEndBlockThreads(blocked);
1295     return obj;
1296 }
1297
1298
1299 PyObject* wxPyInputStream::readlines(int sizehint) {
1300     PyObject* pylist;
1301
1302     // check if we have a real wxInputStream to work with
1303     if (!m_wxis) {
1304         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1305         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1306         wxPyEndBlockThreads(blocked);
1307         return NULL;
1308     }
1309
1310     // init list
1311     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1312     pylist = PyList_New(0);
1313     wxPyEndBlockThreads(blocked);
1314
1315     if (!pylist) {
1316         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1317         PyErr_NoMemory();
1318         wxPyEndBlockThreads(blocked);
1319         return NULL;
1320     }
1321
1322     // read sizehint bytes or until EOF
1323     int i;
1324     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1325         PyObject* s = this->readline();
1326         if (s == NULL) {
1327             wxPyBlock_t blocked = wxPyBeginBlockThreads();
1328             Py_DECREF(pylist);
1329             wxPyEndBlockThreads(blocked);
1330             return NULL;
1331         }
1332         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1333         PyList_Append(pylist, s);
1334         i += PyString_Size(s);
1335         wxPyEndBlockThreads(blocked);
1336     }
1337
1338     // error check
1339     wxStreamError err = m_wxis->GetLastError();
1340     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1341         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1342         Py_DECREF(pylist);
1343         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1344         wxPyEndBlockThreads(blocked);
1345         return NULL;
1346     }
1347
1348     return pylist;
1349 }
1350
1351
1352 void wxPyInputStream::seek(int offset, int whence) {
1353     if (m_wxis)
1354         m_wxis->SeekI(offset, wxSeekMode(whence));
1355 }
1356
1357 int wxPyInputStream::tell(){
1358     if (m_wxis)
1359         return m_wxis->TellI();
1360     else return 0;
1361 }
1362
1363
1364
1365
1366 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1367     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1368 {}
1369
1370 wxPyCBInputStream::wxPyCBInputStream(const wxPyCBInputStream& other)
1371 {
1372     m_read  = other.m_read;
1373     m_seek  = other.m_seek;
1374     m_tell  = other.m_tell;
1375     m_block = other.m_block;
1376     Py_INCREF(m_read);
1377     Py_INCREF(m_seek);
1378     Py_INCREF(m_tell);
1379 }
1380
1381
1382 wxPyCBInputStream::~wxPyCBInputStream() {
1383     wxPyBlock_t blocked;
1384     if (m_block) blocked = wxPyBeginBlockThreads();
1385     Py_XDECREF(m_read);
1386     Py_XDECREF(m_seek);
1387     Py_XDECREF(m_tell);
1388     if (m_block) wxPyEndBlockThreads(blocked);
1389 }
1390
1391
1392 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1393     wxPyBlock_t blocked;
1394     if (block) blocked = wxPyBeginBlockThreads();
1395
1396     PyObject* read = getMethod(py, "read");
1397     PyObject* seek = getMethod(py, "seek");
1398     PyObject* tell = getMethod(py, "tell");
1399
1400     if (!read) {
1401         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1402         Py_XDECREF(read);
1403         Py_XDECREF(seek);
1404         Py_XDECREF(tell);
1405         if (block) wxPyEndBlockThreads(blocked);
1406         return NULL;
1407     }
1408
1409     if (block) wxPyEndBlockThreads(blocked);
1410     return new wxPyCBInputStream(read, seek, tell, block);
1411 }
1412
1413
1414 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1415     return wxPyCBInputStream::create(py, block);
1416 }
1417
1418 wxPyCBInputStream* wxPyCBInputStream_copy(wxPyCBInputStream* other) {
1419     return new wxPyCBInputStream(*other);
1420 }
1421
1422 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1423     if (!PyObject_HasAttrString(py, name))
1424         return NULL;
1425     PyObject* o = PyObject_GetAttrString(py, name);
1426     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1427         Py_DECREF(o);
1428         return NULL;
1429     }
1430     return o;
1431 }
1432
1433
1434 wxFileOffset wxPyCBInputStream::GetLength() const {
1435     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1436     if (m_seek && m_tell) {
1437         wxFileOffset temp = self->OnSysTell();
1438         wxFileOffset ret = self->OnSysSeek(0, wxFromEnd);
1439         self->OnSysSeek(temp, wxFromStart);
1440         return ret;
1441     }
1442     else
1443         return wxInvalidOffset;
1444 }
1445
1446
1447 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1448     if (bufsize == 0)
1449         return 0;
1450
1451     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1452     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1453     PyObject* result = PyEval_CallObject(m_read, arglist);
1454     Py_DECREF(arglist);
1455
1456     size_t o = 0;
1457     if ((result != NULL) && PyString_Check(result)) {
1458         o = PyString_Size(result);
1459         if (o == 0)
1460             m_lasterror = wxSTREAM_EOF;
1461         if (o > bufsize)
1462             o = bufsize;
1463         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1464         Py_DECREF(result);
1465
1466     }
1467     else
1468         m_lasterror = wxSTREAM_READ_ERROR;
1469     wxPyEndBlockThreads(blocked);
1470     return o;
1471 }
1472
1473 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1474     m_lasterror = wxSTREAM_WRITE_ERROR;
1475     return 0;
1476 }
1477
1478
1479 wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) {
1480     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1481     PyObject* arglist = PyTuple_New(2);
1482
1483     if (sizeof(wxFileOffset) > sizeof(long))
1484         // wxFileOffset is a 64-bit value...
1485         PyTuple_SET_ITEM(arglist, 0, PyLong_FromLongLong(off));
1486     else
1487         PyTuple_SET_ITEM(arglist, 0, PyInt_FromLong(off));
1488
1489     PyTuple_SET_ITEM(arglist, 1, PyInt_FromLong(mode));
1490
1491
1492     PyObject* result = PyEval_CallObject(m_seek, arglist);
1493     Py_DECREF(arglist);
1494     Py_XDECREF(result);
1495     wxPyEndBlockThreads(blocked);
1496     return OnSysTell();
1497 }
1498
1499
1500 wxFileOffset wxPyCBInputStream::OnSysTell() const {
1501     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1502     PyObject* arglist = Py_BuildValue("()");
1503     PyObject* result = PyEval_CallObject(m_tell, arglist);
1504     Py_DECREF(arglist);
1505     wxFileOffset o = 0;
1506     if (result != NULL) {
1507         if (PyLong_Check(result))
1508             o = PyLong_AsLongLong(result);
1509         else
1510             o = PyInt_AsLong(result);
1511         Py_DECREF(result);
1512     };
1513     wxPyEndBlockThreads(blocked);
1514     return o;
1515 }
1516
1517 //----------------------------------------------------------------------
1518
1519 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1520
1521 wxPyCallback::wxPyCallback(PyObject* func) {
1522     m_func = func;
1523     Py_INCREF(m_func);
1524 }
1525
1526 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1527     m_func = other.m_func;
1528     Py_INCREF(m_func);
1529 }
1530
1531 wxPyCallback::~wxPyCallback() {
1532     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1533     Py_DECREF(m_func);
1534     wxPyEndBlockThreads(blocked);
1535 }
1536
1537
1538 #define wxPy_PRECALLINIT     "_preCallInit"
1539 #define wxPy_POSTCALLCLEANUP "_postCallCleanup"
1540
1541 // This function is used for all events destined for Python event handlers.
1542 void wxPyCallback::EventThunker(wxEvent& event) {
1543     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1544     PyObject*       func = cb->m_func;
1545     PyObject*       result;
1546     PyObject*       arg;
1547     PyObject*       tuple;
1548     bool            checkSkip = false;
1549
1550     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1551     wxString className = event.GetClassInfo()->GetClassName();
1552
1553     // If the event is one of these types then pass the original
1554     // event object instead of the one passed to us.
1555     if ( className == wxT("wxPyEvent") ) {
1556         arg =       ((wxPyEvent*)&event)->GetSelf();
1557         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1558     }
1559     else if ( className == wxT("wxPyCommandEvent") ) {
1560         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1561         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1562     }
1563     else {
1564         arg = wxPyConstructObject((void*)&event, className);
1565     }
1566
1567     if (!arg) {
1568         PyErr_Print();
1569     } else {
1570         // "intern" the pre/post method names to speed up the HasAttr
1571         static PyObject* s_preName  = NULL;
1572         static PyObject* s_postName = NULL;
1573         if (s_preName == NULL) {
1574             s_preName  = PyString_FromString(wxPy_PRECALLINIT);
1575             s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP);
1576         }
1577
1578         // Check if the event object needs some preinitialization
1579         if (PyObject_HasAttr(arg, s_preName)) {
1580             result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL);
1581             if ( result ) {
1582                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1583                 PyErr_Clear();       // Just in case...
1584             } else {
1585                 PyErr_Print();
1586             }
1587         }
1588
1589         // Call the event handler, passing the event object
1590         tuple = PyTuple_New(1);
1591         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1592         result = PyEval_CallObject(func, tuple);
1593         if ( result ) {
1594             Py_DECREF(result);   // result is ignored, but we still need to decref it
1595             PyErr_Clear();       // Just in case...
1596         } else {
1597             PyErr_Print();
1598         }
1599
1600         // Check if the event object needs some post cleanup
1601         if (PyObject_HasAttr(arg, s_postName)) {
1602             result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL);
1603             if ( result ) {
1604                 Py_DECREF(result);   // result is ignored, but we still need to decref it
1605                 PyErr_Clear();       // Just in case...
1606             } else {
1607                 PyErr_Print();
1608             }
1609         }
1610
1611         if ( checkSkip ) {
1612             // if the event object was one of our special types and
1613             // it had been cloned, then we need to extract the Skipped
1614             // value from the original and set it in the clone.
1615             result = PyObject_CallMethod(arg, "GetSkipped", "");
1616             if ( result ) {
1617                 event.Skip(PyInt_AsLong(result));
1618                 Py_DECREF(result);
1619             } else {
1620                 PyErr_Print();
1621             }
1622         }
1623         Py_DECREF(tuple);
1624     }
1625     wxPyEndBlockThreads(blocked);
1626 }
1627
1628
1629 //----------------------------------------------------------------------
1630
1631 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1632       m_lastFound = NULL;
1633       m_self = other.m_self;
1634       m_class = other.m_class;
1635       if (m_self) {
1636           Py_INCREF(m_self);
1637           Py_INCREF(m_class);
1638       }
1639 }
1640
1641
1642 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1643     m_self = self;
1644     m_class = klass;
1645     m_incRef = incref;
1646     if (incref) {
1647         Py_INCREF(m_self);
1648         Py_INCREF(m_class);
1649     }
1650 }
1651
1652
1653 #if PYTHON_API_VERSION >= 1011
1654
1655 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1656 // in which the method was defined.  Starting with 2.2 it returns
1657 // "class that asked for the method" which seems totally bogus to me
1658 // but apprently it fixes some obscure problem waiting to happen in
1659 // Python.  Since the API was not documented Guido and the gang felt
1660 // safe in changing it.  Needless to say that totally screwed up the
1661 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1662 // code to find the class where the method is actually defined...
1663
1664 static
1665 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1666 {
1667     int i, n;
1668
1669     if (PyType_Check(klass)) {      // new style classes
1670         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1671         PyTypeObject* type = (PyTypeObject*)klass;
1672         PyObject *mro, *res, *base, *dict;
1673         /* Look in tp_dict of types in MRO */
1674         mro = type->tp_mro;
1675         assert(PyTuple_Check(mro));
1676         n = PyTuple_GET_SIZE(mro);
1677         for (i = 0; i < n; i++) {
1678             base = PyTuple_GET_ITEM(mro, i);
1679             if (PyClass_Check(base))
1680                 dict = ((PyClassObject *)base)->cl_dict;
1681             else {
1682                 assert(PyType_Check(base));
1683                 dict = ((PyTypeObject *)base)->tp_dict;
1684             }
1685             assert(dict && PyDict_Check(dict));
1686             res = PyDict_GetItem(dict, name);
1687             if (res != NULL)
1688                 return base;
1689         }
1690         return NULL;
1691     }
1692
1693     else if (PyClass_Check(klass)) { // old style classes
1694         // This code is borrowed/adapted from class_lookup in classobject.c
1695         PyClassObject* cp = (PyClassObject*)klass;
1696         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1697         if (value != NULL) {
1698             return (PyObject*)cp;
1699         }
1700         n = PyTuple_Size(cp->cl_bases);
1701         for (i = 0; i < n; i++) {
1702             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1703             PyObject *v = PyFindClassWithAttr(base, name);
1704             if (v != NULL)
1705                 return v;
1706         }
1707         return NULL;
1708     }
1709     return NULL;
1710 }
1711 #endif
1712
1713
1714 static
1715 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1716 {
1717     PyObject* mgc = PyMethod_GET_CLASS(method);
1718
1719 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1720     return mgc;
1721 #else                             // 2.2 and after, the hard way...
1722
1723     PyObject* nameo = PyString_FromString(name);
1724     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1725     Py_DECREF(nameo);
1726     return klass;
1727 #endif
1728 }
1729
1730
1731
1732 bool wxPyCallbackHelper::findCallback(const char* name) const {
1733     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1734     self->m_lastFound = NULL;
1735
1736     // If the object (m_self) has an attibute of the given name...
1737     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1738         PyObject *method, *klass;
1739         method = PyObject_GetAttrString(m_self, (char*)name);
1740
1741         // ...and if that attribute is a method, and if that method's class is
1742         // not from a base class...
1743         if (PyMethod_Check(method) &&
1744             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1745             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1746
1747             // ...then we'll save a pointer to the method so callCallback can call it.
1748             self->m_lastFound = method;
1749         }
1750         else {
1751             Py_DECREF(method);
1752         }
1753     }
1754     return m_lastFound != NULL;
1755 }
1756
1757
1758 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1759     PyObject*   result;
1760     int         retval = false;
1761
1762     result = callCallbackObj(argTuple);
1763     if (result) {                       // Assumes an integer return type...
1764         retval = PyInt_AsLong(result);
1765         Py_DECREF(result);
1766         PyErr_Clear();                  // forget about it if it's not...
1767     }
1768     return retval;
1769 }
1770
1771 // Invoke the Python callable object, returning the raw PyObject return
1772 // value.  Caller should DECREF the return value and also manage the GIL.
1773 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1774     PyObject* result;
1775
1776     // Save a copy of the pointer in case the callback generates another
1777     // callback.  In that case m_lastFound will have a different value when
1778     // it gets back here...
1779     PyObject* method = m_lastFound;
1780
1781     result = PyEval_CallObject(method, argTuple);
1782     Py_DECREF(argTuple);
1783     Py_DECREF(method);
1784     if (!result) {
1785         PyErr_Print();
1786     }
1787     return result;
1788 }
1789
1790
1791 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1792     cbh.setSelf(self, klass, incref);
1793 }
1794
1795 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1796     return cbh.findCallback(name);
1797 }
1798
1799 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1800     return cbh.callCallback(argTuple);
1801 }
1802
1803 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1804     return cbh.callCallbackObj(argTuple);
1805 }
1806
1807
1808 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1809     if (cbh->m_incRef) {
1810         wxPyBlock_t blocked = wxPyBeginBlockThreads();
1811         Py_XDECREF(cbh->m_self);
1812         Py_XDECREF(cbh->m_class);
1813         wxPyEndBlockThreads(blocked);
1814     }
1815 }
1816
1817 //---------------------------------------------------------------------------
1818 //---------------------------------------------------------------------------
1819 // These event classes can be derived from in Python and passed through the event
1820 // system without losing anything.  They do this by keeping a reference to
1821 // themselves and some special case handling in wxPyCallback::EventThunker.
1822
1823
1824 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1825     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1826     //Py_INCREF(m_self);        //      circular loops...
1827     m_cloned = false;
1828 }
1829
1830 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1831     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1832     if (m_cloned)
1833         Py_DECREF(m_self);
1834     wxPyEndBlockThreads(blocked);
1835 }
1836
1837 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1838     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1839     if (m_cloned)
1840         Py_DECREF(m_self);
1841     m_self = self;
1842     if (clone) {
1843         Py_INCREF(m_self);
1844         m_cloned = true;
1845     }
1846     wxPyEndBlockThreads(blocked);
1847 }
1848
1849 PyObject* wxPyEvtSelfRef::GetSelf() const {
1850     Py_INCREF(m_self);
1851     return m_self;
1852 }
1853
1854
1855 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1856 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1857
1858
1859 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1860     : wxEvent(winid, commandType) {
1861 }
1862
1863
1864 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1865     : wxEvent(evt)
1866 {
1867     SetSelf(evt.m_self, true);
1868 }
1869
1870
1871 wxPyEvent::~wxPyEvent() {
1872 }
1873
1874
1875 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1876     : wxCommandEvent(commandType, id) {
1877 }
1878
1879
1880 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1881     : wxCommandEvent(evt)
1882 {
1883     SetSelf(evt.m_self, true);
1884 }
1885
1886
1887 wxPyCommandEvent::~wxPyCommandEvent() {
1888 }
1889
1890
1891
1892
1893
1894 //---------------------------------------------------------------------------
1895 //---------------------------------------------------------------------------
1896 // Convert a wxList to a Python List, only works for lists of wxObjects
1897
1898 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1899     wxList*     list = (wxList*)listbase;  // this is probably bad...
1900     PyObject*   pyList;
1901     PyObject*   pyObj;
1902     wxObject*   wxObj;
1903     wxNode*     node = list->GetFirst();
1904
1905     wxPyBlock_t blocked = wxPyBeginBlockThreads();
1906     pyList = PyList_New(0);
1907     while (node) {
1908         wxObj = node->GetData();
1909         pyObj = wxPyMake_wxObject(wxObj,false);
1910         PyList_Append(pyList, pyObj);
1911         node = node->GetNext();
1912     }
1913     wxPyEndBlockThreads(blocked);
1914     return pyList;
1915 }
1916
1917 //----------------------------------------------------------------------
1918
1919 long wxPyGetWinHandle(wxWindow* win) {
1920
1921 #ifdef __WXMSW__
1922     return (long)win->GetHandle();
1923 #endif
1924
1925 #if defined(__WXGTK__) || defined(__WXX11)
1926     return (long)GetXWindow(win);
1927 #endif
1928
1929 #ifdef __WXMAC__
1930     //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef());
1931     return (long)win->GetHandle();
1932 #endif
1933
1934     return 0;
1935 }
1936
1937 //----------------------------------------------------------------------
1938 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1939 // included in every file over and over again...
1940
1941 wxString* wxString_in_helper(PyObject* source) {
1942     wxString* target = NULL;
1943
1944     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1945         PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
1946         return NULL;
1947     }
1948 #if wxUSE_UNICODE
1949     PyObject* uni = source;
1950     if (PyString_Check(source)) {
1951         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1952         if (PyErr_Occurred()) return NULL;
1953     }
1954     target = new wxString();
1955     size_t len = PyUnicode_GET_SIZE(uni);
1956     if (len) {
1957         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len);
1958         target->UngetWriteBuf(len);
1959     }
1960
1961     if (PyString_Check(source))
1962         Py_DECREF(uni);
1963 #else
1964     // Convert to a string object if it isn't already, then to wxString
1965     PyObject* str = source;
1966     if (PyUnicode_Check(source)) {
1967         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
1968         if (PyErr_Occurred()) return NULL;
1969     }
1970     else if (!PyString_Check(source)) {
1971         str = PyObject_Str(source);
1972         if (PyErr_Occurred()) return NULL;
1973     }
1974     char* tmpPtr; int tmpSize;
1975     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
1976     target = new wxString(tmpPtr, tmpSize);
1977
1978     if (!PyString_Check(source))
1979         Py_DECREF(str);
1980 #endif // wxUSE_UNICODE
1981
1982     return target;
1983 }
1984
1985
1986 // Similar to above except doesn't use "new" and doesn't set an exception
1987 wxString Py2wxString(PyObject* source)
1988 {
1989     wxString target;
1990
1991 #if wxUSE_UNICODE
1992     // Convert to a unicode object, if not already, then to a wxString
1993     PyObject* uni = source;
1994     if (!PyUnicode_Check(source)) {
1995         uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict");
1996         if (PyErr_Occurred()) return wxEmptyString;  // TODO:  should we PyErr_Clear?
1997     }
1998     size_t len = PyUnicode_GET_SIZE(uni);
1999     if (len) {
2000         PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len);
2001         target.UngetWriteBuf();
2002     }
2003
2004     if (!PyUnicode_Check(source))
2005         Py_DECREF(uni);
2006 #else
2007     // Convert to a string object if it isn't already, then to wxString
2008     PyObject* str = source;
2009     if (PyUnicode_Check(source)) {
2010         str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict");
2011         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2012     }
2013     else if (!PyString_Check(source)) {
2014         str = PyObject_Str(source);
2015         if (PyErr_Occurred()) return wxEmptyString;    // TODO:  should we PyErr_Clear?
2016     }
2017     char* tmpPtr; int tmpSize;
2018     PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
2019     target = wxString(tmpPtr, tmpSize);
2020
2021     if (!PyString_Check(source))
2022         Py_DECREF(str);
2023 #endif // wxUSE_UNICODE
2024
2025     return target;
2026 }
2027
2028
2029 // Make either a Python String or Unicode object, depending on build mode
2030 PyObject* wx2PyString(const wxString& src)
2031 {
2032     PyObject* str;
2033 #if wxUSE_UNICODE
2034     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
2035 #else
2036     str = PyString_FromStringAndSize(src.c_str(), src.Len());
2037 #endif
2038     return str;
2039 }
2040
2041
2042
2043 void wxSetDefaultPyEncoding(const char* encoding)
2044 {
2045     strncpy(wxPyDefaultEncoding, encoding, DEFAULTENCODING_SIZE);
2046 }
2047
2048 const char* wxGetDefaultPyEncoding()
2049 {
2050     return wxPyDefaultEncoding;
2051 }
2052
2053 //----------------------------------------------------------------------
2054
2055
2056 byte* byte_LIST_helper(PyObject* source) {
2057     if (!PyList_Check(source)) {
2058         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2059         return NULL;
2060     }
2061     int count = PyList_Size(source);
2062     byte* temp = new byte[count];
2063     if (! temp) {
2064         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2065         return NULL;
2066     }
2067     for (int x=0; x<count; x++) {
2068         PyObject* o = PyList_GetItem(source, x);
2069         if (! PyInt_Check(o)) {
2070             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2071             return NULL;
2072         }
2073         temp[x] = (byte)PyInt_AsLong(o);
2074     }
2075     return temp;
2076 }
2077
2078
2079 int* int_LIST_helper(PyObject* source) {
2080     if (!PyList_Check(source)) {
2081         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2082         return NULL;
2083     }
2084     int count = PyList_Size(source);
2085     int* temp = new int[count];
2086     if (! temp) {
2087         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2088         return NULL;
2089     }
2090     for (int x=0; x<count; x++) {
2091         PyObject* o = PyList_GetItem(source, x);
2092         if (! PyInt_Check(o)) {
2093             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2094             return NULL;
2095         }
2096         temp[x] = PyInt_AsLong(o);
2097     }
2098     return temp;
2099 }
2100
2101
2102 long* long_LIST_helper(PyObject* source) {
2103     if (!PyList_Check(source)) {
2104         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2105         return NULL;
2106     }
2107     int count = PyList_Size(source);
2108     long* temp = new long[count];
2109     if (! temp) {
2110         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2111         return NULL;
2112     }
2113     for (int x=0; x<count; x++) {
2114         PyObject* o = PyList_GetItem(source, x);
2115         if (! PyInt_Check(o)) {
2116             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
2117             return NULL;
2118         }
2119         temp[x] = PyInt_AsLong(o);
2120     }
2121     return temp;
2122 }
2123
2124
2125 char** string_LIST_helper(PyObject* source) {
2126     if (!PyList_Check(source)) {
2127         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2128         return NULL;
2129     }
2130     int count = PyList_Size(source);
2131     char** temp = new char*[count];
2132     if (! temp) {
2133         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2134         return NULL;
2135     }
2136     for (int x=0; x<count; x++) {
2137         PyObject* o = PyList_GetItem(source, x);
2138         if (! PyString_Check(o)) {
2139             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2140             return NULL;
2141         }
2142         temp[x] = PyString_AsString(o);
2143     }
2144     return temp;
2145 }
2146
2147 //--------------------------------
2148 // Part of patch from Tim Hochberg
2149 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
2150     if (PyInt_Check(o1) && PyInt_Check(o2)) {
2151         point->x = PyInt_AS_LONG(o1);
2152         point->y = PyInt_AS_LONG(o2);
2153         return true;
2154     }
2155     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
2156         point->x = (int)PyFloat_AS_DOUBLE(o1);
2157         point->y = (int)PyFloat_AS_DOUBLE(o2);
2158         return true;
2159     }
2160     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
2161         // Disallow instances because they can cause havok
2162         return false;
2163     }
2164     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
2165         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
2166         point->x = PyInt_AsLong(o1);
2167         point->y = PyInt_AsLong(o2);
2168         return true;
2169     }
2170     return false;
2171 }
2172
2173
2174 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
2175     // Putting all of the declarations here allows
2176     // us to put the error handling all in one place.
2177     int x;
2178     wxPoint* temp;
2179     PyObject *o, *o1, *o2;
2180     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2181
2182     if (!PySequence_Check(source)) {
2183         goto error0;
2184     }
2185
2186     // The length of the sequence is returned in count.
2187     *count = PySequence_Length(source);
2188     if (*count < 0) {
2189         goto error0;
2190     }
2191
2192     temp = new wxPoint[*count];
2193     if (!temp) {
2194         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2195         return NULL;
2196     }
2197     for (x=0; x<*count; x++) {
2198         // Get an item: try fast way first.
2199         if (isFast) {
2200             o = PySequence_Fast_GET_ITEM(source, x);
2201         }
2202         else {
2203             o = PySequence_GetItem(source, x);
2204             if (o == NULL) {
2205                 goto error1;
2206             }
2207         }
2208
2209         // Convert o to wxPoint.
2210         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
2211             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
2212             o1 = PySequence_Fast_GET_ITEM(o, 0);
2213             o2 = PySequence_Fast_GET_ITEM(o, 1);
2214             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2215                 goto error2;
2216             }
2217         }
2218         else if (wxPySwigInstance_Check(o)) {
2219             wxPoint* pt;
2220             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
2221                 goto error2;
2222             }
2223             temp[x] = *pt;
2224         }
2225         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
2226             o1 = PySequence_GetItem(o, 0);
2227             o2 = PySequence_GetItem(o, 1);
2228             if (!wxPointFromObjects(o1, o2, &temp[x])) {
2229                 goto error3;
2230             }
2231             Py_DECREF(o1);
2232             Py_DECREF(o2);
2233         }
2234         else {
2235             goto error2;
2236         }
2237         // Clean up.
2238         if (!isFast)
2239             Py_DECREF(o);
2240     }
2241     return temp;
2242
2243 error3:
2244     Py_DECREF(o1);
2245     Py_DECREF(o2);
2246 error2:
2247     if (!isFast)
2248         Py_DECREF(o);
2249 error1:
2250     delete [] temp;
2251 error0:
2252     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2253     return NULL;
2254 }
2255 // end of patch
2256 //------------------------------
2257
2258
2259 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2260     if (!PyList_Check(source)) {
2261         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2262         return NULL;
2263     }
2264     int count = PyList_Size(source);
2265     wxBitmap** temp = new wxBitmap*[count];
2266     if (! temp) {
2267         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2268         return NULL;
2269     }
2270     for (int x=0; x<count; x++) {
2271         PyObject* o = PyList_GetItem(source, x);
2272         if (wxPySwigInstance_Check(o)) {
2273             wxBitmap*    pt;
2274             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2275                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2276                 return NULL;
2277             }
2278             temp[x] = pt;
2279         }
2280         else {
2281             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2282             return NULL;
2283         }
2284     }
2285     return temp;
2286 }
2287
2288
2289
2290 wxString* wxString_LIST_helper(PyObject* source) {
2291     if (!PyList_Check(source)) {
2292         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2293         return NULL;
2294     }
2295     int count = PyList_Size(source);
2296     wxString* temp = new wxString[count];
2297     if (! temp) {
2298         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2299         return NULL;
2300     }
2301     for (int x=0; x<count; x++) {
2302         PyObject* o = PyList_GetItem(source, x);
2303 #if PYTHON_API_VERSION >= 1009
2304         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2305             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2306             return NULL;
2307         }
2308 #else
2309         if (! PyString_Check(o)) {
2310             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2311             return NULL;
2312         }
2313 #endif
2314
2315         wxString* pStr = wxString_in_helper(o);
2316         temp[x] = *pStr;
2317         delete pStr;
2318     }
2319     return temp;
2320 }
2321
2322
2323 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2324     if (!PyList_Check(source)) {
2325         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2326         return NULL;
2327     }
2328     int count                = PyList_Size(source);
2329     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2330     if (! temp) {
2331         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2332         return NULL;
2333     }
2334     for (int x=0; x<count; x++) {
2335         PyObject* o = PyList_GetItem(source, x);
2336         if (wxPySwigInstance_Check(o)) {
2337             wxAcceleratorEntry* ae;
2338             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2339                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2340                 return NULL;
2341             }
2342             temp[x] = *ae;
2343         }
2344         else if (PyTuple_Check(o)) {
2345             PyObject* o1 = PyTuple_GetItem(o, 0);
2346             PyObject* o2 = PyTuple_GetItem(o, 1);
2347             PyObject* o3 = PyTuple_GetItem(o, 2);
2348             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2349         }
2350         else {
2351             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2352             return NULL;
2353         }
2354     }
2355     return temp;
2356 }
2357
2358
2359 wxPen** wxPen_LIST_helper(PyObject* source) {
2360     if (!PyList_Check(source)) {
2361         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2362         return NULL;
2363     }
2364     int count = PyList_Size(source);
2365     wxPen** temp = new wxPen*[count];
2366     if (!temp) {
2367         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2368         return NULL;
2369     }
2370     for (int x=0; x<count; x++) {
2371         PyObject* o = PyList_GetItem(source, x);
2372         if (wxPySwigInstance_Check(o)) {
2373             wxPen*  pt;
2374             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2375                 delete temp;
2376                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2377                 return NULL;
2378             }
2379             temp[x] = pt;
2380         }
2381         else {
2382             delete temp;
2383             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2384             return NULL;
2385         }
2386     }
2387     return temp;
2388 }
2389
2390
2391 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2392     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2393     PyObject *o1, *o2;
2394
2395     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2396         return false;
2397
2398     if (isFast) {
2399         o1 = PySequence_Fast_GET_ITEM(source, 0);
2400         o2 = PySequence_Fast_GET_ITEM(source, 1);
2401     }
2402     else {
2403         o1 = PySequence_GetItem(source, 0);
2404         o2 = PySequence_GetItem(source, 1);
2405     }
2406
2407     *i1 = PyInt_AsLong(o1);
2408     *i2 = PyInt_AsLong(o2);
2409
2410     if (! isFast) {
2411         Py_DECREF(o1);
2412         Py_DECREF(o2);
2413     }
2414     return true;
2415 }
2416
2417
2418 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2419     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2420     PyObject *o1, *o2, *o3, *o4;
2421
2422     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2423         return false;
2424
2425     if (isFast) {
2426         o1 = PySequence_Fast_GET_ITEM(source, 0);
2427         o2 = PySequence_Fast_GET_ITEM(source, 1);
2428         o3 = PySequence_Fast_GET_ITEM(source, 2);
2429         o4 = PySequence_Fast_GET_ITEM(source, 3);
2430     }
2431     else {
2432         o1 = PySequence_GetItem(source, 0);
2433         o2 = PySequence_GetItem(source, 1);
2434         o3 = PySequence_GetItem(source, 2);
2435         o4 = PySequence_GetItem(source, 3);
2436     }
2437
2438     *i1 = PyInt_AsLong(o1);
2439     *i2 = PyInt_AsLong(o2);
2440     *i3 = PyInt_AsLong(o3);
2441     *i4 = PyInt_AsLong(o4);
2442
2443     if (! isFast) {
2444         Py_DECREF(o1);
2445         Py_DECREF(o2);
2446         Py_DECREF(o3);
2447         Py_DECREF(o4);
2448     }
2449     return true;
2450 }
2451
2452
2453 //----------------------------------------------------------------------
2454
2455 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2456 {
2457     void* ptr;
2458
2459     if (wxPySwigInstance_Check(source) &&
2460         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2461         return true;
2462
2463     PyErr_Clear();
2464     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2465         return true;
2466
2467     return false;
2468 }
2469
2470 bool wxSize_helper(PyObject* source, wxSize** obj)
2471 {
2472     if (source == Py_None) {
2473         **obj = wxSize(-1,-1);
2474         return true;
2475     }
2476     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2477 }
2478
2479
2480 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2481 {
2482     if (source == Py_None) {
2483         **obj = wxPoint(-1,-1);
2484         return true;
2485     }
2486     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2487 }
2488
2489
2490
2491 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2492
2493     if (source == Py_None) {
2494         **obj = wxRealPoint(-1,-1);
2495         return true;
2496     }
2497
2498     // If source is an object instance then it may already be the right type
2499     if (wxPySwigInstance_Check(source)) {
2500         wxRealPoint* ptr;
2501         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2502             goto error;
2503         *obj = ptr;
2504         return true;
2505     }
2506     // otherwise a 2-tuple of floats is expected
2507     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2508         PyObject* o1 = PySequence_GetItem(source, 0);
2509         PyObject* o2 = PySequence_GetItem(source, 1);
2510         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2511             Py_DECREF(o1);
2512             Py_DECREF(o2);
2513             goto error;
2514         }
2515         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2516         Py_DECREF(o1);
2517         Py_DECREF(o2);
2518         return true;
2519     }
2520
2521  error:
2522     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2523     return false;
2524 }
2525
2526
2527
2528 bool wxRect_helper(PyObject* source, wxRect** obj) {
2529
2530     if (source == Py_None) {
2531         **obj = wxRect(-1,-1,-1,-1);
2532         return true;
2533     }
2534
2535     // If source is an object instance then it may already be the right type
2536     if (wxPySwigInstance_Check(source)) {
2537         wxRect* ptr;
2538         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2539             goto error;
2540         *obj = ptr;
2541         return true;
2542     }
2543     // otherwise a 4-tuple of integers is expected
2544     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2545         PyObject* o1 = PySequence_GetItem(source, 0);
2546         PyObject* o2 = PySequence_GetItem(source, 1);
2547         PyObject* o3 = PySequence_GetItem(source, 2);
2548         PyObject* o4 = PySequence_GetItem(source, 3);
2549         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2550             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2551             Py_DECREF(o1);
2552             Py_DECREF(o2);
2553             Py_DECREF(o3);
2554             Py_DECREF(o4);
2555             goto error;
2556         }
2557         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2558                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2559         Py_DECREF(o1);
2560         Py_DECREF(o2);
2561         Py_DECREF(o3);
2562         Py_DECREF(o4);
2563         return true;
2564     }
2565
2566  error:
2567     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2568     return false;
2569 }
2570
2571
2572
2573 bool wxColour_helper(PyObject* source, wxColour** obj) {
2574
2575     if (source == Py_None) {
2576         **obj = wxNullColour;
2577         return true;
2578     }
2579
2580     // If source is an object instance then it may already be the right type
2581     if (wxPySwigInstance_Check(source)) {
2582         wxColour* ptr;
2583         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2584             goto error;
2585         *obj = ptr;
2586         return true;
2587     }
2588     // otherwise check for a string
2589     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2590         wxString spec = Py2wxString(source);
2591         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2592             long red, green, blue;
2593             red = green = blue = 0;
2594             spec.Mid(1,2).ToLong(&red,   16);
2595             spec.Mid(3,2).ToLong(&green, 16);
2596             spec.Mid(5,2).ToLong(&blue,  16);
2597
2598             **obj = wxColour(red, green, blue);
2599             return true;
2600         }
2601         else {                                       // it's a colour name
2602             **obj = wxColour(spec);
2603             return true;
2604         }
2605     }
2606     // last chance: 3-tuple of integers is expected
2607     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2608         PyObject* o1 = PySequence_GetItem(source, 0);
2609         PyObject* o2 = PySequence_GetItem(source, 1);
2610         PyObject* o3 = PySequence_GetItem(source, 2);
2611         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2612             Py_DECREF(o1);
2613             Py_DECREF(o2);
2614             Py_DECREF(o3);
2615             goto error;
2616         }
2617         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2618         Py_DECREF(o1);
2619         Py_DECREF(o2);
2620         Py_DECREF(o3);
2621         return true;
2622     }
2623
2624  error:
2625     PyErr_SetString(PyExc_TypeError,
2626                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2627     return false;
2628 }
2629
2630
2631 bool wxColour_typecheck(PyObject* source) {
2632
2633     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2634         return true;
2635
2636     if (PyString_Check(source) || PyUnicode_Check(source))
2637         return true;
2638
2639     return false;
2640 }
2641
2642
2643
2644 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2645
2646     if (source == Py_None) {
2647         **obj = wxPoint2D(-1,-1);
2648         return true;
2649     }
2650
2651     // If source is an object instance then it may already be the right type
2652     if (wxPySwigInstance_Check(source)) {
2653         wxPoint2D* ptr;
2654         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2655             goto error;
2656         *obj = ptr;
2657         return true;
2658     }
2659     // otherwise a length-2 sequence of floats is expected
2660     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2661         PyObject* o1 = PySequence_GetItem(source, 0);
2662         PyObject* o2 = PySequence_GetItem(source, 1);
2663         // This should really check for floats, not numbers -- but that would break code.
2664         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2665             Py_DECREF(o1);
2666             Py_DECREF(o2);
2667             goto error;
2668         }
2669         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2670         Py_DECREF(o1);
2671         Py_DECREF(o2);
2672         return true;
2673     }
2674  error:
2675     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2676     return false;
2677 }
2678
2679
2680 //----------------------------------------------------------------------
2681
2682 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2683
2684     PyObject* list = PyList_New(0);
2685     for (size_t i=0; i < arr.GetCount(); i++) {
2686 #if wxUSE_UNICODE
2687         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2688 #else
2689         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2690 #endif
2691         PyList_Append(list, str);
2692         Py_DECREF(str);
2693     }
2694     return list;
2695 }
2696
2697
2698 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2699
2700     PyObject* list = PyList_New(0);
2701     for (size_t i=0; i < arr.GetCount(); i++) {
2702         PyObject* number = PyInt_FromLong(arr[i]);
2703         PyList_Append(list, number);
2704         Py_DECREF(number);
2705     }
2706     return list;
2707 }
2708
2709
2710 //----------------------------------------------------------------------
2711 //----------------------------------------------------------------------
2712
2713
2714
2715